Operating Instructions - KNECHT Maschinenbau GmbH

Operating Instructions
B 500
Automatic Grinding and Polishing Machine
Status 11.2016 ■ Version 1.1 | Translation
Operating Instructions
Automatic Grinding and Polishing Machine B 500
Manufacturer
Knecht Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany
Phone +49 -7527-928-0
Fax+49 -7527-928-32
zentrale@knecht.eu
www.knecht.eu
Documents for the machine operator
Operating Instructions
Date of issue of the operating instructions
November 23, 2016
Copyright
The copyright for these operating instructions as well as other documents for the machine operator is held
by Knecht Maschinenbau GmbH. These documents will be delivered only to our customers and to operators of our products and are a part of the machine.
These documents may neither be reproduced, nor made accessible to third parties, including rival firms,
without our express permission.
3
Table of Contents
1.
Important notes 1.1Foreword
1.2
Warnings and symbols in the operating instructions
1.3Warning labels on the grinding machine and their meanings
1.4
Rating plate and machine serial number
1.5
Figure and item numbers in the operating instructions
2.
Safety 2.1
Basic safety instructions
7
7
7
8
9
10
11
11
2.1.1 Observe notes in the operating instructions
2.1.2 Operator's duty
2.1.3 Obligations on the part of the personnel
2.1.4 Hazards associated with handling the machine
2.1.5Malfunctions
11
11
11
11
12
2.2
2.3
2.4
Use as intended
Warranty and Liability
Safety regulations
12
12
13
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.4.10
2.4.11
2.4.12
2.4.13
Organizational measures
Protective devices
Informal safety measures
Selection and qualifications of the personnel
Machine control system
Safety measures in normal operation
Dangers due to electrical power
Particular danger zones
Servicing (maintenance, repair) and fault rectification
Structural alterations to the grinding machine
Cleaning the grinding machine
Oils and greases
Relocation of the grinding machine
13
13
13
13
14
14
14
14
15
15
15
15
15
3.
Description 3.1
3.2
3.3
3.4
Intended Use
Technical specifications
Functional description
Description of the assemblies
17
17
18
19
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7
3.4.8
Switching the grinding machine on / off
Control panel
Layout of the user interface (main screen)
Coolant Pump
Protective Hood
SP 112 Copy clamping plate
Grinding Unit
Polishing units with polishing paste
21
21
22
24
25
25
25
26
4
17
Table of Contents
4.
Transport 4.1
4.2
4.3
Transport Aids
Transport damage
Transport to another installation site
5.
Installation 5.1
Selection of qualified personnel
5.2
Installation site
5.3
Supply connections
5.4Settings
5.5
Initial commissioning of the grinding machine
27
27
27
27
29
29
29
29
29
30
6.
Commissioning 31
7.
Operation 33
7.1
7.2
7.3
General principles of grinding technology
Changing the profile
Grinding the cutter knives
33
34
35
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
Switching on the grinding machine
Mounting the copy clamping plate
Adjusting the grinding angle
Aligning the grinding unit
Aligning the left polishing unit
Aligning the right polishing unit
Starting the grinding process
35
35
37
37
38
39
39
7.4
7.5
7.6
7.7
7.8
Changing the copy clamping plate
Changing the wet grinding belt
Changing the right flap brush
Changing the left flap brushes
Changing the polishing pastes
40
42
43
44
45
8.
Control system 8.1
8.2
8.3
Main Screen
Activating the product file
Renaming, creating and deleting the product file
46
47
48
8.3.1
8.3.2
8.3.3
Renaming product file
Creating the product file
Deleting the product file
48
49
49
46
5
Table of Contents
8.4
Editing the parameters of the product file
50
8.4.1
8.4.2
8.4.3
Meaning of “Grinding” parameters Meaning of “Feed Cycles” parameter Meaning of “Polishing Process” parameters
51
53
55
8.5
Settings Data
8.6
Manual Functions
8.7Language
8.8
Setting up an internet connection
9.
Care and maintenance 57
59
60
61
62
9.1
Lubrication and Maintenance
62
9.1.1
Lubrication schedule and lubricant table
63
9.2Cleaning
64
9.2.1
Cleaning of sub-structure
65
10.Malfunctions
66
10.1Faults
11.
Disassembly and disposal 11.1Disassembly
11.2Disposal
12.
Service, spare parts and accessories 66
67
67
67
68
12.1 Postal Address
12.2Service
12.3 Spare parts
12.4Accessories
68
68
68
69
12.4.1 Abrasives used
69
13.Appendix
13.1
6
EC Declaration of Conformity
70
70
1. Important notes
1.1Foreword
These operating instructions are meant to make it easier to get to know the automatic grinding
and polishing machine, referred to in this document as grinding machine, and to use it properly
for the intended purpose.
The operating instructions contain important information on how to operate the grinding machine safely, properly and cost-effectively. Observance of these instructions helps to avoid dangers,
repair costs and downtimes, and increases the reliability and service life of the grinding machine.
The operating instructions must always be accessible at the place of use of the grinding machine.
The operating instructions must be read and used by all persons entrusted with working on the
grinding machine, e.g. those entrusted with
• Transport, installation, commissioning
• Operation, including troubleshooting in the process flow, as well as
• Servicing (maintenance, repair).
In addition to the operating instructions and the binding accident prevention regulations
­applicable in the country and place of use of the machine, the generally acknowledged rules of
technology with regard to safe and professional work practices are to be observed.
1.2
Warnings and symbols in the operating instructions
Heeding the following safety alert symbols / designations used in the operating instructions is
absolutely necessary:
The hazard triangle with the signal word “CAUTION” is used as a work
safety indication for all work which could result in death or physical injury.
Special care and caution must be taken when carrying out such jobs.
CAUTION
ATTENTION
NOTICE
The signal word “ATTENTION” is used to call attention to hazards which
could result in damage and / or destruction of the grinding machine or its
environment.
The signal word “NOTE” calls attention to tips on use and useful
­information.
7
1. Important notes
1.3Warning labels on the grinding machine and their meanings
The following warnings and safety alert signs have been affixed to the grinding machine:
CAUTION! DANGEROUS ELECTRICAL VOLTAGE
(warning notice on the switch cabinet)
On being connected to the voltage supply (3x 400 V), the grinding
machine becomes electrically live and touching its live parts directly
could be life-threatening.
Live machine parts may be opened only by authorized, trained
personnel.
The grinding machine must be separated from the mains supply
before carrying out servicing, maintenance and repair jobs on it.
CAUTION! RISK OF INJURY FROM KNIFE
(warning notice on the polishing unit)
Work on the grinding machine involves the sharpening of knives
which could cause serious cut injuries due to their sharpness.
Protective gloves must be worn when carrying out such work, in
particular when placing the knife.
Be careful when transporting blades. Use the protective devices
provided by the knife manufacturer. Wear protective gloves and
apron.
8
1. Important notes
1.4
Rating plate and machine serial number
Maschinenbau GmbH
Witschwender Strasse 26
88368 Bergatreute Germany
07527- 928-0 www.knecht.eu
The rating plate is located on the left side of the
machine.
Automatische Schleif- u. Poliermaschine
Bauj.
TYPE B 500
Masch.-Nr.
820463500
V
400
A
KW
8,0
Hz 50
Motor
25
400
n1 1400/min
KW
2,2
A
2,5
Hz
Y
n2
50
Sch Y
Polierantrieb rechts
V
400
n1 2870/min
KW
1,1
A
Motor
Gew. 900 kg
Sch.
Schleifbandantrieb
V
Motor
2016
2,5
Hz
n2
50
Sch Y
Polierantrieb links
V
400
n1 1360/min
KW
0,7
A
2
Hz
n2
50
Sch Y
Figure 1-1 Rating plate
The machine number is located on the rating plate
and on the top right of the machine.
Figure 1-2 Machine serial number
9
1. Important notes
1.5
Figure and item numbers in the operating instructions
If the text refers to a machine component shown in a figure, then a figure or item number is
­added in brackets after the machine component.
Example: (7-5/1) denotes figure number 7-5, item 1.
Adjusting the grinding angle with the hand wheel
(7-5/1).
2
The grinding angle can be read off the scale
­(7-5/2).
1
Figure 7-5 Adjusting the grinding angle
10
2.Safety
2.1
Basic safety instructions
2.1.1 Observe notes in the operating instructions
The basic prerequisite for safe handling and uninterrupted operation of this grinding machine is
knowledge of the basic safety instructions and regulations.
• These operating instructions contain important notes on how to operate the grinding machine
safely.
• All persons carrying out work on the grinding machine must follow these operating instructions,
in particular the safety notices.
• In addition, the accident prevention rules and regulations applicable at the place of use of the
machine must also be observed.
2.1.2 Operator's duty
The operator is obliged to allow only those persons to work on the grinding machine, who
• are familiar with the basic occupational safety and accident prevention regulations and have
been trained and instructed in the handling of the grinding machine,
• have read the operating instructions, particularly the “Safety” section, and have read and understood the warning notes. They have given a signed confirmation of this in writing.
Checks are also carried out at regular intervals to ensure that the worker is fulfilling his employee
obligation to observe safety at work.
2.1.3 Obligations on the part of the personnel
All the personnel working on the grinding machine shall be obliged to
• observe the basic occupational safety and accident prevention regulations,
• read the operating instructions, particularly the “Safety” chapter, and the warning notes. They
must provide signed confirmation of this in writing.
2.1.4 Hazards associated with handling the machine
The grinding machine has been built to the latest technological standards and the acknowledged
rules of technical safety. In spite of that, its use presents inherent risks which could result in bodily
harm or even death of the user or third persons, or impairment of the grinding machine or other
property.
The grinding machine may only be used:
• for the intended purpose, and
• in faultless condition with regard to safety-relevant aspects.
11
2.Safety
Faults that could impair safety must be eliminated immediately.
2.1.5Malfunctions
If safety-relevant malfunctions occur in the grinding machine, or if the processing behavior indicates that such malfunctions may have occurred, the grinding machine must be stopped immediately until such time as the malfunction has been found and eliminated.
The malfunctions must be eliminated by authorized technical staff.
2.2
Use as intended
The grinding machine is only meant for the automatic grinding, deburring and polishing of flat
machine cutting knives.
Before starting work on a flat knife, it must be checked whether the knife fits on the knife holder.
Any other use is considered improper use. Knecht Maschinenbau GmbH assumes no liability for
damages resulting from improper use. The user alone bears the risk in such cases.
Use as intended includes the observance of all the instructions in the operating instructions.
The grinding machine is being used improperly, if, e.g.,
• devices are not fastened properly.
• work pieces other than flat machine cutting knives are ground.
2.3
Warranty and Liability
Warranty and liability claims in case of personal injuries or property damage are excluded if such
damage is attributable to one or more of the following causes:
• improper use of the grinding machine,
• improper transportation, commissioning, operation and maintenance of the grinding machine,
• operating the grinding machine with defective safety devices, or improperly attached or malfunctioning safety and protective equipment,
• ignoring the operating instructions with regard to transportation, commissioning, operation,
maintenance and repair of the grinding machine,
• unauthorized structural alterations to the grinding machine,
• unauthorized modification, e.g. of the drive conditions (power and speed), and
• insufficient monitoring of machine parts that are exposed to wear
12
2.Safety
• use of unapproved replacement and wear parts.
Use only original replacement and wear parts. If parts are purchased from external suppliers, it
cannot be guaranteed that they will be constructed and manufactured to withstand the stresses
and provide the required level of safety.
2.4
Safety regulations
2.4.1 Organizational measures
All the existent safety devices must be checked regularly.
Observe prescribed intervals for recurring maintenance work or as specified in the operating
instructions.
2.4.2 Protective devices
Before commissioning the grinding machine, it must be ensured that all protective equipment is
properly mounted and in functional condition.
Protective equipment may be removed only after the machine has stopped and has been secured
against accidental restarting of the grinding machine.
If sub-components are supplied, the protective equipment must be correctly attached by the
­operator according to the instructions.
2.4.3 Informal safety measures
The operating instructions must be permanently available at the place of use of the grinding
machine. In addition to the operating instructions, the generally applicable as well as the locally
relevant accident prevention regulations must also be made available and observed.
All the safety alert symbols and danger warnings on the grinding machine must be complete and
clearly legible.
2.4.4 Selection and qualifications of the personnel
Only trained and instructed personnel may work on the grinding machine. The minimum legal
age for employment must be observed.
The responsibilities of the personnel must be clearly assigned, i.e. commissioning, operation,
maintenance and repair, etc.
Personnel still undergoing training or instruction may only work on the grinding machine under
the permanent supervision of an experienced person!
13
2.Safety
2.4.5 Machine control system
Do not make any changes to the software program under any circumstances. Parameters that the
operator can set himself are excluded from this prohibition (e.g. setting the number of cycles).
Only trained and instructed personnel is allowed to activate the control unit.
2.4.6 Safety measures in normal operation
Refrain from any method of working which may pose a risk to safety. Only operate the grinding
machine if all the safety devices are installed and fully functional.
Check the grinding machine for external signs of damage and correct operation of the safety
devices at least once every shift.
Report any changes (including operating behavior) immediately to the competent department /
person. Where required, shut down the grinding machine immediately and secure against restarting.
Before switching on the grinding machine, ensure that no one is exposed to any risk from the
start-up of the machine.
If there are any functional faults, stop the machine immediately and secure against restarting.
Have the faults eliminated immediately.
2.4.7 Dangers due to electrical power
The switch cabinet must always remain secured against access. Only authorized personnel must
be allowed to access it.
Work on electrical units or operating materials may only be performed by a qualified electrician in
accordance with electrical rules.
Defects, such as damaged cables, cable connections, etc., must be immediately rectified by an
authorized electrician.
Cables marked in yellow are electrically live even when the main switch
is in off position.
CAUTION
2.4.8 Particular danger zones
When the grinding belt moves to working position, there is a hazard of pinching in the rear area
of the machine. Suitable personal protective equipment must be worn.
14
2.Safety
2.4.9 Servicing (maintenance, repair) and fault rectification
Maintenance work is to be carried out on schedule by trained personnel. Inform operating personnel before starting repair work. The responsible supervisor is to be named.
For all service work, the grinding machine is to be disconnected from the power supply and secured against accidental restarting. Pull out the mains plug. Cordon off the servicing area, as far
as possible.
After completion of the maintenance work and fault rectification, install all the safety devices and
check whether they are fully functional.
2.4.10 Structural alterations to the grinding machine
Modifications, retrofitting or rebuilds of the grinding machine are not allowed without the permission of the manufacturer. This also applies to the installation and adjustment of safety devices.
No alterations may be carried out without prior written permission from Knecht Maschinenbau
GmbH.
Immediately replace machine parts which are not in perfect condition.
Use only original replacement and wear parts. If parts are purchased from external suppliers, it
cannot be guaranteed that they will be constructed and manufactured to withstand the stresses
and provide the required level of safety.
2.4.11 Cleaning the grinding machine
Cleaning agents and materials used must be handled properly and disposed of in an environment-friendly manner.
Ensure that wear and replacement parts are disposed of in a safe and environmentally friendly
way.
2.4.12 Oils and greases
When handling lubricants / oils and greases, follow the safety regulations for the product. Observe
special instructions for the foodstuffs sector.
2.4.13 Relocation of the grinding machine
Even when moving the machine a short distance from its site, disconnect it from all external
­power supply sources. Before restarting the machine, connect it properly to the current supply.
When loading or unloading, only use hoisting and load lifting equipment with sufficient
load-bearing capacity. Appoint a qualified banksman (signaler) for the lifting process.
No persons other than those entrusted with this work may be present in the loading and
­installation area.
15
2.Safety
Only lift the grinding machine correctly with a suspension device in accordance with the operating instructions (attachment points for load suspension devices, etc.). Only use suitable transport
vehicles with sufficient load-bearing capacity. Attach the load securely. Use suitable attachment
points. When putting in operation again, proceed only as instructed in the operating instructions.
16
3.Description
3.1
Intended Use
The B 500 automatic grinding and polishing machine grinds, deburs and polishes flat machine
cutting knives.
3.2
Technical specifications
Height ������������������������������������������������������������ approx. 1800 mm
Width ������������������������������������������������������������� approx. 1500 mm
Depth ������������������������������������������������������������� approx. 1500 mm
Weight ���������������������������������������������������������������������� 500 kg
Current supply* ������������������������������������������������������������ 3x 400 V
Mains frequency* �������������������������������������������������������������� 50 Hz
Output* ��������������������������������������������������������������������� 6.5 kW
Energy consumption* ��������������������������������������������������������� 10.5 A
Back-up fuse* ������������������������������������������������������������������ 16 A
Control voltage �������������������������������������������������������������� 24 V DC
Pneumatic connection ��������������������������������������������������������� 6.5 bar
Measured A-evaluated emission sound pressure level ����������������������������� 72 dB (A)
at workstation LpA**
Air consumption �������������������������������������������������������� max. 50 l / min
Wet grinding belt ������������������������������������������������������ 2200 x 60 mm
Flap brushes ���������������������������������������������������������� d.200 x 50 mm
*) This data may vary depending on the electrical power supply.
**) Dual number noise emission information according to EN ISO 4871. Noise emission value according to
EN ISO 11202 (measurement uncertainty KpA. 3 dB(A))
A K 24 cutter knife RR335 by Knecht Maschinenbau GmbH was ground.
17
GoC
approx. 1500 mm
approx. 1800 mm
3.Description
GoC
approx. 1500 mm
Figure 3-1 Dimensions in mm
3.3
Functional description
The grinding and polishing machine can be used to automatically sharpen, deburr and polish
linear and convex flat cutter knives in knife size of maximum 700 x 550 mm.
The knife is fastened onto a copy clamping plate and is moved along the wet grinding belt or the
flap brushes in movements that follow the shape of the knife.
Grinding angles between 5° and 35° can be steplessly adjusted on the grinding unit.
In case of emergency, the grinding and polishing machine can immediately be stopped by
­pressing the “Emergency Stop” button.
18
3.Description
3.4
Description of the assemblies
1
8
2
3
4
9
5
6
7
10
11
Figure 3-2 General view of the grinding machine
1
2
3
4
5
6
7
8
9
10
11
Belt protecting hood
Belt release lever
Hand wheel for height adjustment of “left polishing unit”
Rear doors of polishing units (concealed)
Control panel
Switch cabinet
Pneumatic cabinet
Hand wheel for height adjustment of “right polishing unit”
Protective hood
Water tray
Adjustable machine feet
19
3.Description
6
7
1
8
2
3
4
5
Figure 3-3 Interior view
1
Splash guard
2
Left polishing unit for knife blade
3Knife
4
SP 112 copy clamping plate
5
Guard plate
6
Grinding unit
7
Work lamp
8
Right polishing unit for backside of knife
20
3.Description
1
2
1
Control knob for pressure regulation
Compressed air connection (6.5 bar)
2
Figure 3-4 Pneumatic system
3.4.1 Switching the grinding machine on / off
The main switch (3-5/1) is disposed on the rear of
the switch cabinet.
Turning the main switch from “0” to “I” switches
on the grinding machine.
1
Turning the main switch from “I” to “0” switches
off the grinding machine.
Figure 3-5 Main switch
3.4.2 Control panel
1
2
3
4
5
7
8
9
6
10
1
Display screen
2“Control On” button: Activates the controls (button starts flashing)
3“Start / Stop” button: Starts / stops the
grinding program
4
“Change copy clamping plate” button
5“Table forward” button: For moving the
table forward
6“Setting Mode” key switch: Position “1”
for setting mode
7“Wet grinding belt grinding pressure”
selector switch
8“Coolant On / Off” button: Switches the
coolant pump on / off
9“Table back” button: For moving the table
backward
10
“Emergency Stop” button
Figure 3-6 Control panel
21
3.Description
3.4.3 Layout of the user interface (main screen)
1
4
7
10
2
5
8
11
3
6
9
12
13
14
15
16
17
Figure 3-7 Main screen
1
“Table forward”: For moving the table forward
2
“Fast motion Table”: Rapid traverse for table forward / backward
3
“Table back”: For moving the table backward
4
“Grinding belt motor On / Off”: Switches the wet grinding belt on / off
5
“Grinding belt Up / Down”: For raising / lowering the wet grinding belt
6“Polishing paste”: Pulse for applying the polishing paste on the flap brushes (in addition to
the automatic cycle)
7
“Left polishing motor On / Off”: For switching the left polishing unit on / off
8
“Left polishing Forward / Backward”: For moving the left polishing unit forward / backward
9“Left polishing brush old”: Press the touch panel button if brushes are worn out. Slide automatically moves 10 mm further.
22
10
“Right polishing motor On / Off”: For switching the right polishing unit on / off
11
“Right polishing Forward / Backward”: For moving the right polishing unit forward / backward
12
“Reset”: For deleting temporary fault messages
13
“F1 Home position”: Moves the table to home position
14
“F2 Prod. selection”: For selecting the product files
15
“F3 Product data”: For changing the product data parameters
16
“F4 Menu”: For managing the settings and language of the user interface
17
“F5 Back”: For going back to the previous screen
3.Description
ATTENTION
Fast motion highlighted in green: Unit
­traverses continuously without interruption.
Fast motion highlighted in gray: Unit
­traverses a predefined distance.
23
3.Description
3.4.4 Coolant Pump
The grinding machine has a coolant pump (3-8/1)
with monitoring function.
The coolant pump becomes visible when the right
door on the rear side of the machine is opened.
1
The coolant container sunk in the water tray must
be filled with water up to 3 cm below the rim (approx. 15 liters). A coolant additive is not required.
Figure 3-8 Coolant pump
The grinding machine has a flow gage (3-9/1)
which automatically interrupts the program flow if
there is no coolant flow.
1
The flow gage is in the machine interior and must
be cleaned regularly.
Figure 3-9 Flow gage
The coolant volume is regulated using the coolant
tap (3-10/1).
1
Figure 3-10 Coolant tap
NOTICE
24
Turning down the tap too far interrupts the
program flow.
3.Description
3.4.5 Protective Hood
The protective hood (3-11/1) is not locked during
the grinding process. If it or one of the rear doors
is opened, the program flow is aborted.
1
The copy clamping plate can be changed when
the protective hood is open.
Figure 3-11 Protective hood
3.4.6 SP 112 Copy clamping plate
The knives are clamped onto a copy clamping
plate (3-12/1) for machining.
A matching copy clamping plate is needed for each
knife shape and size. Knives may only be ground
using SP 112 copy grinding plates.
The knife change takes less than one minute.
1
Copy clamping plates for new knife types
are available on request from Knecht Maschinenbau GmbH.
Figure 3-12 SP 112 copy clamping holder
3.4.7 Grinding Unit
The wet grinding belt (3-13/1) is in idle position
above the polishing units (3-13/2 and 3-13/3).
5
1
2
3
It is lowered onto the knife (3-13/4) for grinding.
The grinding angle is adjusted using the hand
wheel (3-13/5).
4
Figure 3-13 Grinding unit
25
3.Description
3.4.8 Polishing units with polishing paste
3
The grinding machine is equipped with two polishing units ((3-14/1) and (3-14/2)) for polishing
the knives.
4
1
2
The polishing unit on the left (3-14/1) swivels forward to polish and deburr the knife blade.
The polishing unit on the right (3-14/2) swivels
forward to polish the back of the knife.
Figure 3-14 Grinding compartment
The position of the polishing units relative to
the knives is adjusted with the help of the hand
wheels ((3-14/3) and (3-14/4)).
The polishing paste is applied automatically in
each case via a pneumatic cylinder.
26
4.Transport
For transporting the machine, the locally applicable safety and accident
prevention regulations must be observed.
CAUTION
Only transport the machine in upright position (with the machine feet
facing downwards).
ATTENTION
4.1
There are parts jutting out on the underside
of the machine which could be easily damaged. Pull out the water tray (3-2/10) before
transporting. Drain the water before doing
that.
Transport Aids
For transporting and for setting up the grinding machine, only use adequately dimensioned transport aids with a load-bearing capacity of at least 1.5 t, e.g. truck, forklift or hydraulic lift truck.
When using a forklift or a lift truck, move the fork under the grinding machine.
Bear in mind the center of gravity of the machine. The center of gravity (CoG) is shown in figure
3-1.
4.2
Transport damage
If damage is detected on unloading after acceptance of the delivery, inform Knecht Maschinenbau
GmbH and the freight forwarder about it immediately. If required, consult an independent expert
immediately.
Remove the packaging and shipping straps. Remove the shipping straps on the grinding machine.
Dispose of the packaging in an environmentally friendly way.
4.3
Transport to another installation site
For transport to another installation site, ensure that the space requirements are fulfilled (see
Chapter 3.2).
A reliable electrical connection must be provided at the new installation site.
The grinding machine must be stable and firmly placed.
The machine feet must be adjusted so that there is a slight downward slope towards the back.
27
4.Transport
Installations on the electrical and pneumatic system may only be
­performed by an authorized specialist or our customer service staff.
CAUTION
28
Observe the locally applicable safety and accident prevention ­regulations.
5.Installation
5.1
Selection of qualified personnel
It is advisable to have trained Knecht personnel perform the installation
work on the grinding machine.
CAUTION
5.2
We assume no liability for damage caused by improper installation.
Installation site
When determining the installation site, bear in mind the space requirement for installation,
­maintenance and repair work on the grinding machine (see Chapter 3.2).
5.3
Supply connections
The grinding machine is delivered ready for connection with the appropriate connection cable.
Confirm that the machine is correctly connected to the current supply.
CAUTION
5.4Settings
The various components and the electrics are adjusted by Knecht Maschinenbau GmbH before
delivery.
ATTENTION
Unauthorized changes to set values are not
permitted and may damage the grinding
machine.
Control parameters may only be changed by
accordingly qualified personnel. This person
must be familiar with the machine functions
and the meaning of the parameters. Other­
wise, damage to the machine is likely to
occur.
29
5.Installation
5.5
Initial commissioning of the grinding machine
Place the grinding machine at the installation site on a level base.
Level out floor unevenness by adjusting the machine feet (3-2/11) with a flat wrench (SW17)
­taking care to ensure that there is a slight downward slope towards the back.
Have an authorized electrician on site install the voltage supply.
Completely install and check the safety devices before commissioning.
Have all the safety devices checked for proper function by trained
­personnel before commissioning.
CAUTION
Have the compressed air supply installed on site by a qualified expert.
Confirm that the machine is correctly connected to the compressed air
supply.
CAUTION
If the machine is connected incorrectly, escaping compressed air and
­hurtled parts can lead to injuries.
Observing the local safety and accident prevention regulations for
­compressed air is required.
30
6.Commissioning
All work on the machine may only be performed by authorized
­personnel.
CAUTION
The locally applicable safety and accident prevention regulations must be
observed.
Fill the water tray (6-1/1) with water.
1
Figure 6-1 Water tray
Connect the power plug to the power socket provided on site (3x 400 V, 16 A).
Plug in the compressed air hose at the compressed
air port (6-2/1).
2
Turn the control knob (6-2/2) to adjust the pressure to 6.5 bar.
Close the belt protective hood (3-2/1), rear doors
(3-2/4) and protective hood (3-2/9).
1
Figure 6-2 Compressed air port
1
3
Set the main switch (3-5/1) to “I”. Wait for the
controls to initialize.
Switch on the control unit with the “Control On”
button (6-3/1).
2
Figure 6-3 Control panel
31
6.Commissioning
Turn the “Setting Mode” key switch (6-3/2) to
position “1”.
Press the “Change copy clamping plate” button
(6-3/3) and check the direction of rotation of the
chain pinion (6-4/1).
The chain pinion must rotate in clockwise direction.
1
Figure 6-4 Checking the direction of rotation
32
7.Operation
7.1
General principles of grinding technology
If a blade has become blunt, material must be removed from its surface to restore it to its original
sharpness.
For that, the knife in question is ground to produce its cutting edge. If, in the process, a burr
­appears on the blade, then the grinding process was successful and can be concluded. Now,
­before the final sharpness is achieved, the burr must be removed in a further step. This is done
with a flap brush.
As it is not only the sharp cutting edges but also the long service lives that define a blade, the
­cutting angle is another important indicator of a blade's performance. The smaller the cutting
edge angle, the higher the theoretical service life. In practice, however, the cutting edge breaks
off and is therefore no longer sharp when the cutting edge angle is too small.
The cutting edge angles must therefore lie between 15° and 35°. If the cutting edge angles
are less than 15°, the blade becomes so unstable that it breaks at the slightest resistance. If the
cutting edge angle is greater than 35°, the blade is extremely stable, but service life will not be as
long.
One more criterion for judging the properties of a cutting edge is the cutting edge profile.
There are three different ground profiles:
Tapered grinding
Convex grinding
Concave grinding
Convex ground profiles can mostly be found on cutter blades and hand knives. Tapered and
­concave ground profiles are predominantly found on circular knives and blades.
In general: Adhering to the profiles and the cutting edge angles specified by the manufacturer is
required
NOTICE
If tapered grinds or concave grinds are to be
applied, the grinding machine must be
equipped with a harder contact disk.
33
7.Operation
7.2
Changing the profile
By default, the grinding machine produces a
­profile for boiled sausage knives.
If a flatter profile is to be ground, the grinding
cycle counter must be incremented after the 2nd
feed.
The more often a knife profile is ground, the flatter will be the knife.
Figure 7-1 “Feed cycles” product data
ATTENTION
34
If a short profile is to be ground, the number of
knife feeds must be reduced.
Control parameters may only be changed by
accordingly qualified personnel. This person
must be familiar with the machine functions
and the meaning of the parameters. Otherwise, damage to the machine is likely to
occur.
7.Operation
7.3
Grinding the cutter knives
7.3.1 Switching on the grinding machine
Set the main switch (see figure 3-5/1) to “I”. Wait for the controls to initialize. The main screen
appears.
Press the “Control On” button (3-6/2). The control unit is now activated.
Turn the “Setting Mode” key switch (3-6/6) to position “1”.
7.3.2 Mounting the copy clamping plate
Push the copy clamping plate (7-2/1) as far as it
will go on the ball bearings of the guide carriage
(7-2/2) while pressing against the limit stop with
the right hand.
Press and hold the “Change copy clamping plate”
button (3-6/4) until the copy clamping plate has
moved over the limit switch (7-2/3).
1
2
3
Figure 7-2 Mounting the copy clamping plate
With the pin in front, push the limit switch cam
(7-3/1) under the copy clamping plate and tighten
the star knob (7-3/2).
2
1
Figure 7-3 Mounting the limit switch cam
35
7.Operation
Place the knife (7-4/1) on the holder of the copy
clamping plate and rotate the grinder (7-4/2) on
the knife.
1
2
Figure 7-4 Clamping the knife
This can result in serious cut injuries.
Wear protective gloves.
CAUTION
ATTENTION
NOTICE
36
Before clamping the knife, check whether the
copy clamping plate matches the knife (compare labeling of the copy clamping plate with
labeling of the knife). Use of a copy clamping
plate that does not match the knife can lead
to damage to the knife and the copy clamping plate.
There is a matching copy clamping plate for
each cutter knife type. To prepare the matching grinding plate, Knecht Maschinenbau
GmbH needs a knife drawing or a new knife.
If possible, specify the cutter type, knife
radius and knife type.
7.Operation
7.3.3 Adjusting the grinding angle
Adjusting the grinding angle with the hand wheel
(7-5/1).
2
The grinding angle can be read off the scale (75/2).
1
Figure 7-5 Adjusting the grinding angle
7.3.4 Aligning the grinding unit
Turn the “Setting Mode” key switch (3-6/6) to
position “1”.
3
1
2
Move wet grinding belt to working position by
pressing the “Grinding belt Up/Down” button (76/2) on the touch panel.
Open the coolant tap (3-10/1) roughly halfway.
Figure 7-6 Main screen
Press the “Table forward” button (7-6/3) on the
touch panel until wet grinding belt and knife are
almost touching each other.
Press the “Change copy grinding plate” button (3-6/4). Check the direction of travel of the
copy grinding plate and press the button again
as necessary to make the copy grinding plate
move in the desired direction. Hold the button in
depressed position until the copy grinding plate
stops moving. The wet grinding belt is now at the
knife tip.
37
7.Operation
The grinding unit has been aligned properly if the
path of the copy clamping plate is sufficient for
grinding the entire blade length.
If the blade end does not reach the grinding belt
center (see figure 7-7), the limit switch cam (7-3/1)
must be re-adjusted.
Figure 7-7 Adjusting the path of the copy
clamping plate
38
7.Operation
7.3.5 Aligning the left polishing unit
As the upper and lower brushes of the left polishing unit wear off with different levels of abrasion
over time, the position of the polishing unit must
be realigned at regular intervals.
1
Swivel the left polishing unit towards the knife
with the “Left Polishing Forward / Backward” (78/1) button in the manual functions on the touch
panel.
Figure 7-8 Main screen
Use the hand wheel to adjust the height (3-2/3) of
the “Left Polishing Unit” (3-3/2) so that the knife
edge is at the point of intersection of the flap
brushes.
Figure 7-9 Aligning the left polishing unit
ATTENTION
Wrong
The height of the polishing unit on the left
must be adjusted so that the point of intersection of the flap brushes lies on the knife
edge.
Wrong
Right
Figure 7-10 Aligning the left polishing unit
39
7.Operation
7.3.6 Aligning the right polishing unit
Swivel the right polishing unit towards the knife
with the “Right Polishing Forward / Backward” (711/1) button in the manual functions on the touch
panel.
1
Figure 7-11 Main screen
Use the hand wheel to adjust the height (3-2/8) of
the “Right Polishing Unit” (3-3/8) so that the flap
brush touches the knife.
Figure 7-12 Aligning the right polishing unit
7.3.7 Starting the grinding process
1
Open the coolant tap (3-10/1) roughly halfway.
Close the protective hood.
Set the “Setting Mode” key switch (7-13/2) to
“0” and press the “Start / Stop” button (7-13/1).
The grinding program starts.
2
Figure 7-13 Control panel
40
The program flow can be aborted at any time
by pressing the “Start / Stop” button (7-13/1).
The copy grinding plate will move back to home
position.
7.Operation
7.4
Changing the copy clamping plate
Never change the copy clamping plate with knives clamped.
There is a risk of crushing and pinching at the drive pinion.
CAUTION
This can result in serious injuries.
Only press the “Change copy clamping plate” button (3-6/4) with the
copy grinding plate mounted.
Loosen the star knob (7-14/2).
Take out the limit switch cam (7-14/1).
2
1
Figure 7-14 Changing the copy clamping plate
2
1
Figure 7-15 Control panel
Set the “Setting Mode” key switch (7-15/1) to
“1” and press the “Change copy grinding plate”
button (7-15/2). Check the direction of travel
of the copy grinding plate and press the button
again as necessary to make the copy grinding
plate move in the desired direction. Hold the button in depressed position until the copy grinding
plate stops moving.
Then detach the copy clamping plate from the
guide carriage by hand without twisting it and
keep it in a safe place.
41
7.Operation
Push the copy clamping plate (7-16/1) as far as it
will go onto the ball bearings of the guide carriage
(7-16/2) while pressing against the limit stop with
the right hand.
1
Press and hold the “Change copy clamping plate”
button (7-15/2) until the copy clamping plate has
moved 2 - 3 cm.
2
Figure 7-16 Pushing the copy clamping plate
onto the guide carriage
NOTICE
42
With the pin in front, push the limit switch cam
(7-14/1) under the copy clamping plate and tighten the star knob (7-14/2).
If the copy clamping plate has not been
inserted properly, push it in by hand.
7.Operation
7.5
Changing the wet grinding belt
CAUTION
For all work on the grinding and polishing machine, the locally applicable safety and accident prevention regulations as well as instructions in
the “Safety” and “Important Notes” section of the operating instructions
must be observed.
Only original grinding belts may be used.
ATTENTION
Incorrect grinding belts can lead to overheated blades that can cause knife breaks.
1
Pull the belt protective hood (7-17/1) upward and
remove.
Turn the belt release lever (7-17/3); unload and
remove the wet grinding belt (7-17/4).
2
3
Load the new wet grinding belt taking care that
the direction of rotation is correct (the direction of
rotation of the motor is counter-clockwise). There
is a direction arrow on the grinding unit (7-17/2)
to check the direction of rotation.
4
Figure 7-17 Changing the wet grinding belt
If the wet grinding belt is not running exactly on
the contact disk, it can be aligned with the belt
control knob (7-18/1).
Turning the belt control knob in counter-clockwise
direction makes the wet grinding belt run to the
left. Turning in clockwise direction makes the belt
run to the right.
1
Figure 7-18 Adjusting the wet grinding belt
43
7.Operation
7.6
Changing the right flap brush
Close the protective hood.
Press “Right Polishing Forward / Backward” button
(7-19/1) on the touch panel.
1
The polishing unit on the right swivels forward.
Figure 7-19 Main screen
Set the “Setting Mode” key switch (3-6/6)
to position “1” so that the polishing unit
remains in front when the protective hood
opens.
ATTENTION
1
2
Open the protective hood and insert the bar
­(7-20/1) in the hole in the clamping flange behind
the flap brush.
Insert the tap wrench (7-20/2) in the holes of the
clamping flange and unscrew in clockwise direction.
Exchange the flap brush and screw back the
clamping flange in counter-clockwise direction.
Figure 7-20 Changing the right flap brush
44
7.Operation
7.7
Changing the left flap brushes
Close the protective hood.
Press “Left Polishing Forward / Backward” button
(7-21/1) on the touch panel.
1
The polishing unit on the left swivels forward.
Figure 7-21 Main screen
Set the “Setting Mode” key switch (3-6/6)
to position “1” so that the polishing unit
remains in front when the protective hood
opens.
ATTENTION
1
2
Open the protective hood and loosen the upper
nut (7-22/1) in counter-clockwise direction using
the SW22 flat wrench. Loosen the lower nut (722/2) in clockwise direction.
Remove the flap brushes and flange and mount
the new flap brushes in reverse sequence. Screw
the nuts back again.
Figure 7-22 Changing the left flap brush
45
7.Operation
7.8
Changing the polishing pastes
Open the rear doors and unscrew the clamping
claw with an SW17 combination wrench (7-23/1).
Take out the polishing paste (7-23/2).
2
Insert new polishing paste. Screw the clamping
claw back again.
1
Figure 7-23 Changing the right polishing paste
Proceed in the same way for changing the polishing paste on the left (7-24/1).
2
Then screw the clamping claw (7-24/2) back
again.
1
Figure 7-24 Changing the left polishing paste
ATTENTION
A new polishing paste must initially be
supported with a plate underneath. This
prevents the paste from breaking off. The
supporting paste must be removed as soon as
approximately half of the polishing paste has
been used up.
Tighten the clamping claw only lightly until
the pyramidal tips are pressed all the way
into the paste.
Use only original polishing pastes as the
knives will otherwise not be sharpened
­properly.
46
8. Control system
8.1
Main Screen
1
4
7
10
2
5
8
11
3
6
9
12
13
14
15
16
17
Figure 8-1 Main screen
1
“Table forward”: For moving the table forward
2
“Fast motion, table”: Rapid traverse for table forward / backward
3
“Table back”: For moving the table backward
4
“Grinding belt motor On / Off”: Switches the wet grinding belt on / off
5
“Grinding belt Up / Down”: For raising / lowering the wet grinding belt
6“Polishing paste”: Pulse for applying the polishing paste on the flap brushes (in addition to
the automatic cycle)
7
“Left polishing motor On / Off”: For switching the left polishing unit on / off
8
“Left polishing Forward / Backward”: For moving the left polishing unit forward / backward
9“Left polishing brush old”: Press the touch panel button if brushes are worn out. Slide automatically moves 10 mm further.
10
“Right polishing motor On / Off”: For switching the right polishing unit on / off
11
“Right polishing Forward / Backward”: For moving the right polishing unit forward / backward
12
“Reset”: For deleting temporary fault messages
13
“F1 Home position”: Moves the table to home position
14
“F2 Prod. selection”: For selecting the product files
15
“F3 Product data”: For changing the product data parameters
16
“F4 Menu”: For managing the settings and language of the user interface
17
“F5 Back”: For going back to the last view
47
8. Control system
ATTENTION
Fast motion highlighted in green: Unit
­traverses continuously without interruption.
Fast motion highlighted in gray: Unit
­traverses a predefined distance.
8.2
Activating the product file
A separate product file for each grinding task is stored. This product file must be selected and
loaded before grinding in automatic mode.
The procedure is as follows:
Activate the “F2 Prod. Selection” (8-2/1) touch
panel button. A new window (8-3) opens.
1
Figure 8-2 Main screen
Select the desired file so that it is highlighted in
blue.
Load the product file in the control unit via the
“F4 Activate” (8-3/1) touch panel button.
1
The program automatically switches back to the
main screen.
Figure 8-3 Selecting the product file
1
Figure 8-4 Main screen
48
The new product file appears in the “Product”
row (8-4/1). The new parameters are now loaded
by the control unit.
8. Control system
8.3
Renaming, creating and deleting the product file
Product files can be renamed, deleted and new
ones created by copying.
The procedure is as follows:
Activate the “F2 Prod. Selection” (8-5/1) touch
panel button.
1
A new window (8-6) opens.
Figure 8-5 Main screen
Select the desired file so that it is highlighted in
blue.
Select the relevant touch panel button: “F1 Rename” (8-6/1), “F2 Delete” (8-6/2) or “F3 Copy”
(8-6/3).
1
2
3
4
5
Figure 8-6 Editing the product file
8.3.1 Renaming product file
On pressing “F1 Rename” (8-6/1), a window as
displayed in the figure on the left (8-7) opens.
1
Edit the file name (8-7/1) using the keyboard and
confirm with “OK” (8-7/2).
2
Figure 8-7 Renaming the product file
The window closes. The renamed file appears in
the product file directory.
Then activate a product file with “F4 Activate”
­(8-6/4) or return to the main screen with “F5
Back” (8-6/5).
49
8. Control system
8.3.2 Creating the product file
On pressing “F3 Copy” (8-6/3), a window as
­displayed in the figure on the left (8-8) opens.
1
Edit the file name (8-8/1) using the keyboard and
confirm with “OK” (8-8/2).
The window closes. The new file appears in the
product file directory.
2
Continue with Chapter 8.4 to edit the parameters
of the product file.
Figure 8-8 Creating the product file
8.3.3 Deleting the product file
On pressing “F2 Delete” (8-6/2), a pop-up window (8-9/1) opens.
Confirm with “Yes” (8-9/2); cancel with “No”.
1
The pop-up window closes.
2
3
Figure 8-9 Deleting the product file
50
4
Then activate a product file with “F4 Activate”
­(8-9/3) or return to the main screen with “F5
Back” (8-9/4).
8. Control system
8.4
Editing the parameters of the product file
The parameters of a product file can be changed
as follows:
Press the “F3 Product Data” (8-10/1) touch panel
button on the main screen.
1
A new window (8-11) opens.
Figure 8-10 Main screen
There are two different parameter groups:
1
2
“Grinding” (8-11/1): Grinding process data (see
Chapter 8.4.1)
“Polishing” (8-11/2): Polishing process data (see
Chapter 8.4.3)
Figure 8-11 Parameter groups
The active group is always indicated with a green
arrow. To activate a group, press the name. The
arrow moves forward and the group is highlighted in blue.
51
8. Control system
8.4.1 Meaning of “Grinding” parameters
1
2
3
4
Figure 8-12 “Grinding” parameters
1
“Touching enabled”: true = touching enabled, false = touching disabled
2
“
Start position for beginning of knife search”: Path that the knife covers for touching in
fast motion before speed is reduced (in mm)
To change the parameters, tap on the relevant
button highlighted in yellow.
Tap on “Numbers” to open the window as shown
in (8-13); tap on “Values” to open the window as
shown in (8-14).
Select the desired number and confirm with “OK”
(8-13/1).
The “Cancel” touch panel button closes the
­window without accepting the number.
1
Figure 8-13 Editing the “Numbers” parameter
52
8. Control system
In the window for “Values”, select between
“true” and “false” and confirm with “OK”
­(8-14/1).
The “Cancel” touch panel button closes the
­window without accepting the value.
1
Figure 8-14 Editing the “Values” parameter
ATTENTION
Save the changed values with the “F2 Save”
(8-12/4) touch panel button.
If a current product file is changed, overwrite
via the “F1 Activate” (8-12/3) touch panel
button of the control system.
53
8. Control system
8.4.2 Meaning of “Feed Cycles” parameter
1
2
3
4
Figure 8-15 “Feed cycles” parameter
1
“
Number of Cycles”: Number of cycles in a particular step; the step is not carried out if the
value is “0”.
2
“
Feed”: Path that the knife covers to the next step after completing processing of the
previous step (in mm)
NOTICE
The above parameters refer to the 2nd - 10th
step.
To change the parameters, tap on the relevant
button highlighted in yellow.
A window (8-16) opens when you click “Numbers”.
54
8. Control system
Select the desired number and confirm with “OK”
(8-16/1).
The “Cancel” touch panel button closes the window without accepting the number.
1
Figure 8-16 Editing the “Numbers” parameter
ATTENTION
Save the changed values with the “F2 Save”
(8-15/4) touch panel button.
If a current product file is changed, overwrite
via the “F1 Activate” (8-15/3) touch panel
button of the control system.
55
8. Control system
8.4.3 Meaning of “Polishing Process” parameters
1
2
3
4
5
Figure 8-17 “Polishing process” parameter
1“Polishing process enabled”: true = polishing process activated, false = polishing process
deactivated
2
“Number of Cycles”: Polishing cycles in a particular polishing process
3“Left polishing unit”: true = left polishing unit activated, false = right polishing unit
­activated
NOTICE
The above parameters refer to the 2nd
polishing process.
To change the parameters, tap on the relevant
button highlighted in yellow.
Tap on “Numbers” to open the window as shown
in (8-18); tap on “Values” to open the window as
shown in (8-19).
56
8. Control system
Select the desired number and confirm with “OK”
(8-18/1).
The “Cancel” touch panel button closes the
­window without accepting the number.
1
Figure 8-18 Editing the “Numbers” parameter
In the window for “Values”, select between
“true” and “false” and confirm with “OK”
­(8-19/1).
The “Cancel” touch panel button closes the
­window without accepting the value.
1
Figure 8-19 Editing the “Values” parameter
ATTENTION
Save the changed values with the “F2 Save”
(8-17/5) touch panel button.
If a current product file is changed, overwrite
via the “F1 Activate” (8-17/4) touch panel
button of the control system.
57
8. Control system
8.5
Settings Data
The settings data are called via the main menu “F4 Menu” (8-1/16) followed by “F2 Settings
Data”.
1
2
3
4
Figure 8-20 Settings data
1
“
Number of cycles up to polishing paste”: Number of grinding cycles before the polishing
paste is automatically applied on the flap brushes
2
“
Correction value for worn left polishing brush”: On pressing the touch panel button
in the main screen (8-1/9), the slide moves forward by the set value so that the left flap
brushes can function optimally (in mm)
To change the parameters, tap on the relevant
button highlighted in yellow.
A window (8-21) opens when you click “Numbers”.
58
8. Control system
Select the desired number and confirm with “OK”
(8-21/1).
The “Cancel” touch panel button closes the
­window without accepting the number.
1
Figure 8-21 Editing the “Numbers” parameter
ATTENTION
Save the changed values with the “F2 Save”
(8-20/4) touch panel button.
If a current product file is changed, overwrite
via the “F1 Activate” (8-20/3) touch panel
button of the control system.
59
8. Control system
8.6
Manual Functions
The manual functions allow you to operate the machine by hand. They are called via the main
menu “F4 Menu” (8-1/16) followed by “F3 Manual Functions”. Various functions of the machine
can be individually activated / deactivated.
ATTENTION
Buttons highlighted in green are enabled.
Buttons highlighted in gray are disabled.
1
2
3
4
5
Figure 8-22 Manual functions
60
1
S witch the suction system on / off
2
Switch coolant pump on / off
3
Water deflector Up / Down
4
Copy clamping plate Raise / Lower
5
“F5 back”: Takes you back to the previous screen
8. Control system
8.7Language
The user interface language can be changed to
the language of the country of use. The parameter
descriptions are always in English.
Press the touch panel button “F5 Back” (8-23/1)
to go back to the start screen.
1
Figure 8-23 Main menu
Press the “F4 Language” (8-24/1) touch panel
button.
A new window (8-25) opens.
2
1
Figure 8-24 Start screen
The desired language is selected and automatically
activated by pressing the corresponding touch
panel button (8-25/1).
Then return to the start screen by pressing the
“F5 Back” (8-25/2) touch panel button.
1
2
The main screen appears when the “F3 Production” (8-24/2) button is pressed.
Figure 8-25 Selecting the language
61
8. Control system
8.8
Setting up an internet connection
The machine has a network connection port
which can be used to establish a direct connection
between the machine and Knecht Maschinenbau.
The contents of the display screen of the grinding
machine are transferred via this connection. In this
way, the manufacturer's technicians can perform
a diagnosis of the machine, change software settings and install or edit new grinding programs.
1
Figure 8-26 Switch cabinet
“Team Viewer”, the program pre-installed on your
machine, is needed for setting up the internet
connection. An active internet connection must be
available.
For that, please connect the network cable provided with the machine to the network socket
provided on site and the network connection in
the switch cabinet (8-26/1).
NOTICE
62
Please have the internet connection set up by
a network administrator.
9. Care and maintenance
9.1
Lubrication and Maintenance
There is one grease fitting each in the front and
rear of the guideway housing (9-1/1).
1
4
To access the grease fitting of the polishing unit,
the cover plate (9-1/2) and the motor hood (9-1/3)
must be removed.
3
2
One shot of the grease gun must be pressed into
each grease fitting once a month.
The guideways and adjusting spindles for angle
adjustment (9-1/4) must be greased once a
month.
Figure 9-1 Grease fitting
The Bowex coupling (9-2/1), the grease fitting
­(9-2/2) of the swivel mechanism and the knife
feed guideways (9-2/3) must be greased once a
month.
1
2
3
Figure 9-2 Lubricating points
Remove and clean the flow gage (9-3/1) once a
month.
1
2
Figure 9-3 Flow gage
For this purpose, disconnect the connector (9-3/2)
and turn the flow gage in counter-clockwise direction by hand. Clean the measuring probe with a
clean cloth.
Slightly grease the thread (not the probe) and
tighten back again.
Re-assemble in reverse sequence.
63
9. Care and maintenance
9.1.1 Lubrication schedule and lubricant table
64
Lubricating activity
Interval
OEST
SHELL
EXXON Mobil
Lubricate thread of star
knobs, clamping lever, flow
gage and Bowex coupling
4 weeks
Multi-purpose
grease L2
Gadus
S2 V 100 2
Mobilith
SHC 100
Grease machine parts after
cleaning
After each
grinding
­operation
Paraffinum
Perliquidum
16L
Shell Risella
917
Marcol 82
Lubricate parts with grease
fittings (see Figure 9-1)
4 weeks
Multi-purpose
grease L2
Gadus
S2 V 100 2
Mobilith
SHC 100
Lubricate guideways and
adjusting spindles
4 weeks
Multi-purpose
grease L2
Gadus
S2 V 100 2
Mobilith
SHC 100
Lubricate copy clamping plate
paths on the guard plate
Daily
Multi-purpose
grease L2
Gadus
S2 V 100 2
Mobilith
SHC 100
9. Care and maintenance
9.2Cleaning
Clean the machine after each grinding process to prevent grinding sludge from drying, hence
making it harder to remove.
After cleaning, lightly grease the machine with non-corrosive oil (also refer to lubrication schedule
in Chapter 9.1.1).
The coolant must be changed every week.
The copy clamping plate can be lowered for
­cleaning the machine.
To do that, close the protective hood.
1
Press the “F4 Menu” (9-4/1) touch panel button
on the main screen. A new window (9-5) opens.
Figure 9-4 Main screen
Press the “F3 Manual Function” (9-5/1) touch
panel button to call the manual function of the
machine.
1
Figure 9-5 Menu
Press the “Down” button (9-6/1) on the touch
panel. The copy clamping plate is lowered and the
grinding sludge can be removed with water.
2
1
To raise the copy clamping plate, press the “Up”
button (9-6/2) on the touch panel.
Figure 9-6 Manual functions
ATTENTION
Dispose of the coolant in an environmentally
friendly way!
65
9. Care and maintenance
9.2.1 Cleaning of sub-structure
The guard plate (9-7/1) can be dismantled for
cleaning and servicing the sub-structure.
1
2
2
First, open the rear doors (3-2/4) on the backside
of the machine and pull out the connector plug
underneath the guard plate.
Then turn the Allen screws (9-7/2) all the way to
the stop in counter-clockwise direction from the
front. To do that, use a SW10 Allen wrench.
Figure 9-7 Dismantling the guard plate
The guard plate can now be pulled forward and
out of the machine.
Re-assemble the guard plate in reverse sequence.
ATTENTION
Be careful while re-assembling the guard
plate as the limit switch and cable could be
damaged otherwise.
Flap brushes must not get wet, since they
can only absorb polishing paste and can only
correctly deburr a knife in dry state.
66
10.Malfunctions
10.1Faults
Malfunction
Fault
Remedy
Wet grinding belt moves to and
fro, making a lot of noise, and
cannot be corrected.
Wet-grinding belt is faulty
Mount new wet grinding belt
Contact disk is damaged or
worn out
Mount new contact disk
Too little coolant in the
­coolant tank
Fill coolant
Lines are clogged
Clean lines
Defective pump
Change pump
Flow gage is dirty
Clean flow gage
No burr formation on the
knife edge
Check condition of wet grinding belt
and accordingly increase the number of
cycles
Polishing unit set incorrectly
Re-align polishing unit (see Chapter
7.3.5 and 7.3.6)
Pneumatic cylinder of the
­polishing paste is running
rough
Clean pneumatic cylinder and check for
smooth running
Polishing paste sticks to the
guideway
Uncouple the compressed air hose
and check whether the cylinder can be
moved by hand. If not, rework the polishing paste with knife.
Fault message “Coolant error”
on the main screen.
Knife is not getting sharpened.
Polishing paste not being fed.
If a fault is not included in the faults table or if the fault is not eliminated, please contact our
service staff (Chapter 12.2).
67
11. Disassembly and disposal
11.1Disassembly
All operating materials must be disposed of correctly.
Secure moving parts against slipping.
The disassembly must be carried out by a qualified specialist company.
11.2Disposal
At the end of the machine service life, it must be disposed of by a qualified specialist company.
In exceptional cases and in agreement with Knecht Maschinenbau GmbH, the machine can be
returned.
Operating materials (e.g. grinding belts, flap brushes, coolant etc.) must also be disposed of
­correctly.
68
12. Service, spare parts and accessories
12.1 Postal Address
Knecht Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany
Phone +49 -7527-928-0
Fax
+49 -7527-928-32
zentrale@knecht.eu
www.knecht.eu
12.2Service
Service management:
See postal address
service@knecht.eu
12.3 Spare parts
If you need spare parts, please use the spare parts list provided with the machine. Please place
your order as shown below.
Please always include the following information:
(Example)
Machine type
Machine serial number
Designation of assembly
Designation of individual part
Item number
Drawing number
Quantity
(B500)
(820463500)
(4-way paste feed)
(Roller)
(10)
(2000127-8848)
(1 pc.)
Please feel free to contact us with any questions.
69
12. Service, spare parts and accessories
12.4Accessories
12.4.1 Abrasives used
Type
Dimension
Grain
Order number
Wet grinding belt
2200x60
80
412A-62-0725
2200x60
100
412A-63-0726
2200x60
120
412A-64-0727
2200x60
240
412A-66-0728
Wet grinding belt,
­compact grain
2200x60
180
412A-70-0180
Assembled on
delivery
Sisal flap brush (right)
d.200x50xd.25
412J-02-8150
Assembled on
delivery
Polishing paste (right)
230x60x50
412R-05-0501
Assembled on
delivery
Sisal flap brush (left)
d.180x30xd.17
412J-02-0180
Assembled on
delivery
Polishing paste (left)
250x40x140
412R-06-0140
Assembled on
delivery
ATTENTION
Remark
No other abrasives may be used without the
approval of Knecht Maschinenbau GmbH.
Knecht Maschinenbau GmbH accepts no
­liability if other abrasives are used.
If you require wet-grinding belts, flap brushes, polishing pastes or other accessories, please
­contact our sales staff, dealers, or Knecht Maschinenbau GmbH directly.
Thank you for buying our product!
70
13.Appendix
13.1 EC Declaration of Conformity
in accordance with the EC Directive 2006 / 42 / EC
• Machinery Directive 2006 / 42 / EC
• Electromagnetic Compatibility Directive 2004 / 108 / EC
We hereby declare that the machine mentioned below fulfills the basic health and safety requirements of the relevant EC Directive by virtue of the machine's construction and design and the
version placed by us on the market.
This declaration becomes void if the machine is modified in any way without our consent.
Designation of the machine:
Type designation:
Automatic Grinding and Polishing Machine
B 500
Applicable harmonized standards,
in particular:
DIN EN ISO 12100-1
DIN EN ISO 12100-2
DIN EN ISO 60204-1
DIN EN 13218
DIN EN 349
Responsible for the documentation:
Peter Heine (Dipl. Ing. Mechanical Engineering)
Phone +49 -7527-928-15
Manufacturer:
Knecht Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany
Complete technical documentation is available. The operating instructions document for the
­machine is available in its original version and in the native language of the user.
Bergatreute, July 26, 2016
––––––––––––––––––––––––––
Place, date –––––––––––––––––––––––––
Signature
Managing Director
–––––––––––––––––––––––
Signatory details
71
Knecht Maschinenbau GmbH
Witschwender Straße 26 ■ 88368 Bergatreute ■ Germany
Phone +49 -7527-928-0 ■ Fax +49 -7527-928-32
zentrale@knecht.eu ■ www.knecht.eu