COMELZ COM52 User manual
COMELZ_ITALIA COM52-INGL 1
COMPUTERIZED THERMOCEMENTING
AND FOLDING MACHINE
COM52
INSTRUCTION MANUAL
COMELZ_ITALIA
http://www.comelz.com COMELZ s.p.a.
27029 Vigevano - Italia
Viale Indipendenza, 55
Telefono +39 0381 42401
Telefax +39 0381 42064
E-mail: [email protected]
COMELZ ITALIA COM52-INGL 2
COMELZ
ITALIA
COMELZ s.p.a.
27029 Vigevano - Italia
Viale Indipendenza, 55
Telefono 0381 / 42401
Telefax 0381 / 42064
E-mail: comelz@tin.it
Model COM52
Serial No.
Manufactured in
COMELZ ITALIA COM52-INGL 3
COMPUTERIZED
THERMOCEMENTING
AND FOLDING MACHINE
COM52
INSTRUCTION MANUAL
COMELZ
ITALIA
COMELZ s.p.a.
27029 Vigevano - Italia
Viale Indipendenza, 55
Telefono 0381 / 42401
Telefax 0381 / 42064
E-mail: comelz@tin.it
COMELZ ITALIA COM52-INGL 4
COMELZ
ITALIA
COMELZ s.p.a.
27029 Vigevano - Italia
Viale Indipendenza, 55
Telefono 0381 / 42401
Telefax 0381 / 42064
E-mail: comelz@tin.it
Model COM52
Serial No.
Manufactured in
COMELZ_ITALIA 42FM-INGL 5
1 DESCRIPTION OF THE MACHINE...........................................................................................7
2 PROTECTIONS USED FOR SAFETY PURPOSES, picture 2................................................. 7
3 TECHNICAL SPECIFICATION.................................................................................................. 7
INTENDED AND UNINTENDED USE OF THE MACHINE................................................... 8
5 HANDLING AND TRANSPORTATION.....................................................................................8
6 INSTALLATION OF THE MACHINE........................................................................................8
6.1 OVERALL DIMENSIONS.................................................................................................................... 8
6.2 REQUIRED CLEARANCE................................................................................................................... 8
6.3 ENVIRONMENT.................................................................................................................................... 9
7 PREPARATION OF THE MACHINE FOR THE INSTALLATION.......................................9
7.1 CLEANING AND INSPECTING.......................................................................................................... 9
7.2 ELECTRICAL CONNECTION............................................................................................................ 9
7.3 OIL FILLING..........................................................................................................................................9
8 INSTALLATION OF THE MACHINE........................................................................................9
8.1 MAIN SWITCH, picture 6..................................................................................................................... 9
8.2 START PEDAL, picture 6......................................................................................................................9
8.3 CEMENT TOGGLE SWITCH, picture 6............................................................................................ 9
8. CREASER FOOT LIFTING TOGGLE SWITCH, picture 6............................................................ 9
8.5 KNIFE ACTIVATION AND PITCH REDUCTION PEDAL, picture 6...........................................9
8.6 CONSOLE............................................................................................................................................... 9
8.6.1 MEMORY, picture 7........................................................................................................................................... 9
8.6.2 CEMENT, picture 8...........................................................................................................................................10
8.6.2.1 Pot temperature...........................................................................................................................................10
8.6.2.2 Creaser foot temperature............................................................................................................................ 10
8.6.2. Flow rate..................................................................................................................................................... 10
8.6.2.4 Delay...........................................................................................................................................................10
8.6. FEED, picture 9................................................................................................................................................ 11
8.6. .1 Top speed ................................................................................................................................................. 11
8.6. .2 Feed pitch................................................................................................................................................... 11
8.6.4 PHOTOCELLS, picture 10................................................................................................................................11
8.6.4.1 Start.............................................................................................................................................................11
8.6.4.2 Knife activation.......................................................................................................................................... 11
8.6.4. Feed pitch................................................................................................................................................... 12
8.6.5 FOLDING MEMBERS, picture 11................................................................................................................... 12
8.6.5.1 Creaser foot, pictures 11, 12 and 1 ........................................................................................................... 1
8.6.5.2 Guide, pictures 12 and 1 ...........................................................................................................................1
8.6.5. Lip turner, pictures 12, 1 .......................................................................................................................... 1
8.6.6 OPERATION MODE, Picture 14..................................................................................................................... 14
8.6.6.1 Feed............................................................................................................................................................ 14
8.6.6.2 Cement........................................................................................................................................................14
8.6.6. Presser foot - dropping............................................................................................................................... 14
8.6.6.4 Presser foot - lifting.................................................................................................................................... 14
8.6.6.5 Knife........................................................................................................................................................... 15
8.6.7 WORK AREA ILLUMINATION, picture 15...................................................................................................15
8.7 MECHANICAL ADJUSTMENTS...................................................................................................... 15
8.7.1 Snip length.........................................................................................................................................................15
8.7.2 Creaser foot working pressure........................................................................................................................... 15
COMELZ_ITALIA
http://www.comelz.com COMELZ s.p.a.
27029 Vigevano - Italia
Viale Indipendenza, 55
Telefono +39 0381 42401
Telefax +39 0381 42064
E-mail: [email protected]
COMELZ_ITALIA COM52-INGL 6
8.7. Manual lifting of the creaser foot ..................................................................................................................... 15
8.7.4 Manual lifting of the guide ............................................................................................................................... 15
8.8 REINFORCING TAPE........................................................................................................................ 15
9 USE OF THE MACHINE.............................................................................................................15
10 MAINTENANCE OF THE MACHINE....................................................................................16
10.1 REPLACEMENT OF THE KNIFE, picture 12...............................................................................16
10.2 CLEANING..........................................................................................................................................16
10.3 LUBRICATION.................................................................................................................................. 16
10. TESTING SAFETY DEVICES..........................................................................................................16
11 PRODUCT FLAWS AND THEIR CAUSE.............................................................................. 16
12 ERROR CODES..........................................................................................................................16
13 WEAR AND SPARE PARTS.....................................................................................................17
1 DISMANTLING THE COM52 FOLDING MACHINE......................................................... 17
15 SOUND LEVEL OF THE COM52 FOLDING MACHINE................................................... 17
16 WIRING DIAGRAM.................................................................................................................. 18
COMELZ_ITALIA COM52-INGL 7
1 DESCRIPTION OF THE MACHINE The Computerized Folding Machine COM52 manufactured
by COMELZ and outlined in picture 1, is used to fold and at
the same time cement the edge of leather components and
other materials of similar nature.
The operator guides the component piece against a guide
and under a creaser foot that holds the material and
spreads the cement.
Twin hammers fold, press and feed the component.
2 PROTECTIONS USED FOR SAFETY PURPOSES, picture 2
A) Handling
The low weight of the machine does not cause
handling problems.
Correct procedures to handle the machine are
described in chapter 5.
B) Use
Covers fixed to the frame with screws protect from
electrical and mechanical hazards.
•The container for the high temperature cement
is located on the back of the machine, far from
the operator. Covers A - B - C prevent the
operator from unintended contact with the hot
container.
Caution! Cover C gets hot during operations and must be opened very cautiously.
Caution! The operator must guide the work-piece very near the creaser foot that spreads the cement and has
a working temperature of 120-140 degrees.
Caution! Never use the machine without its covers.
C) Maintenance
Specific preventive maintenance servicing is not necessary.
Caution! Maintenance servicing, for its very own nature, might be necessary when the machine does not work
correctly. For this reason, as a rule during maintenance operations, it is extremely hazardous to rely on the
correct functioning of safety devices, even when they appear to be perfectly working.
3 TECHNICAL SPECIFICATION
•Folding width
adjustable from 3 through 7 mm
•Rotation speed
adjustable from 0 through 3000 rpm
•Feed pitch
adjustable from 0,5 through 5,5 mm
•Overall dimensions
height 1200 mm
width 1100 mm
depth 550 mm
•Mass
net weight 80 kg
Picture 1
Picture 2
COMELZ_ITALIA COM52-INGL 8
4 INTENDED AND UNINTENDED USE OF THE MACHINE
The COM52 machine was designed to fold and cement the edge of leather pieces and other materials with
similar features. It is commonly used to manufacture shoes, leather-ware and leather garments.
Unconventional use can cause serious injuries to the operator and damage the machine.
5 HANDLING AND TRANSPORTATION
Skilled personnel with adequate equipment to deal with its
dimensions and weight must perform the lifting and
transportation of the machine.
The machine must be secured as indicated in picture 3.
6 INSTALLATION OF THE MACHINE
6.1 OVERALL DIMENSIONS
The overall dimensions of the COM52 folding
machine are shown in picture 4.
6.2 REQUIRED CLEARANCE
Position the machine to leave enough clearance to allow
servicing, as shown in picture 5.
Picture 3
Picture 4
Picture 5
COMELZ_ITALIA COM52-INGL 9
6.3 ENVIRONMENT
•Do not place the machine in rooms with explosion or fire hazard.
•Shelter the machine from bad weather.
7 PREPARATION OF THE MACHINE FOR THE INSTALLATION
7.1 CLEANING AND INSPECTING
•Make sure that the various components of the machine were not damaged during transportation and
handling.
•Accurately clean the machine from dust and smearing substances, if any.
•Make sure the machine lays flat on the floor. Level the machine through its adjustable foot, picture 6, if
necessary.
7.2 ELECTRICAL CONNECTION
•Make sure the voltage and frequency values of the machine, indicated on a label on the back of the control
unit near the power supply cable input, picture 6, match those of the mains. Then connect the machine
through its cable.
The voltage of the machine is fixed and cannot be changed.
Important! The machine is single phase.
•maximum electrical consumption 600 W
•medium electrical consumption 350 W
•allowed tension +/- 10 of the rated voltage
7.3 OIL FILLING
•Remove the cover, picture 6.
•Fill the oil sump of the machine through the plug up to the mark on the oil window, picture 6.
The oil level must not exceed the red mark.
•Use SAE10 viscosity lubricating oil.
8 INSTALLATION OF THE MACHINE
CONTROL MEMBERS AND THEIR FUNCTIONS
8.1 MAIN SWITCH, picture 6.
Press the I button to turn both the heating and
the whole electric system on.
8.2 START PEDAL, picture 6.
It controls the start of the machine and adjusts
its rotation speed.
8.3 CEMENT TOGGLE SWITCH,
picture 6.
It opens and closes cement flow.
8.4 CREASER FOOT LIFTING TOGGLE
SWITCH, picture 6.
It controls the lifting of the creaser foot, picture
13.
8.5 KNIFE ACTIVATION AND PITCH
REDUCTION PEDAL, picture 6.
•Press it with the toe to activate feed pitch
reduction.
•Press it with the heel to activate the snipping
knife.
8.6 CONSOLE
8.6.1 MEMORY, picture 7.
Picture 6
COMELZ_ITALIA COM52-INGL 10
The machine can store in memory the parameters for 99 types of
folding.
When the machine is turned on, the D5 display shows a number
that indicates the selected folding style.
T14 and T15 - To select one recorded folding style.
D5 - It shows the selected folding style.
Memorized parameters
For each of the 99 folding styles the machine stores in memory the
data input received from the touch-pad, from the following sections:
•Cement (except overall temperature)
•Feed rate: outside corners, straight edges, inside corners
•Photocells
•Folding members: creaser foot, width guide, lip turner
•Operation mode: feed, cement, creaser foot, knife
8.6.2 CEMENT, picture 8.
8.6.2.1 Pot temperature
T16 - To select the cement pot temperature.
Press repeatedly to select.
Standard temperature is 140 degrees C.
D8 - It shows the pre-set temperature.
D6- It shows the actual pot temperature.
The setting of this parameter is generally
valid for all recorded folding styles.
8.6.2.2 Creaser foot temperature
T17-T18 - To adjust the temperature of the
cement spreading foot.
D7 - They show the pre-set temperature.
Standard adjustment is obtained with 2 - 4
lights on.
8.6.2.3 Flow rate
T19-T20 - To adjust the quantity of cement.
D9 - They show the pre-set quantity.
Standard adjustment is obtained with 3 - 5
lights on.
8.6.2.4 Delay
T21-T22 - To delay the start of cement
application, when required, leaving a dry bit at
the start.
D10 - It shows the pre-set delay.
No light on indicates no delay.
Each light on indicates one turn without cement application.
Picture 7
COMELZ_ITALIA COM52-INGL 11
8.6.3 FEED, picture 9. Feed parameters are
distinguished as:
•OUTSIDE CORNER
•STRAIGHT
•INSIDE CORNER
which indicate the operating
conditions that can be met
while folding a work-piece.
The following parameters can
be set:
8.6.3.1 Top speed
The top rotation speed of the
machine can be limited to suit
the complexity of work-pieces.
T23-T24 – T27-T28 – T31-
T32 – They adjust the top
speed.
D11 – D13 – D15 – They
show the set speed.
8.6.3.2 Feed pitch
The length of the feed pitch
can be adjusted to suit the
complexity of work-pieces.
The number of lights on
indicates the length of the
feed pitch.
T25-T26 – T29-T30 – T33-
T34 - They adjust the feed
pitch.
D12 – D14 – D16 – They
show the set feed pitch.
Standard working conditions (indicative) are:
•OUTSIDE CORNER: 3 – 4 lights on
•STRAIGHT: 5 – 8 lights on
•INSIDE CORNER: 4 – 7 lights on
Combining these two adjustments (TOP SPEED and FEED PITCH) allows making operations substantially
simpler, as the machine automatically changes the speed and the feed pitch as the shape of the work-piece
changes.
8.6.4 PHOTOCELLS, picture 10
8.6.4.1 Start
D1 – Pilot lamp for the start photocell
8.6.4.2 Knife activation
T2 – It defines the amplitude of inside corners, by selecting
which photocell starts the adjustment of feed parameters for
inside corners and the automatic activation of the snipping
knife. Press repeatedly to select.
D2 - They indicate the selected photocell.
•All D2 lights off. The adjustment of feed parameters for
inside corners and the automatic activation of the knife
are excluded.
The operator controls the activation of the knife by heeling on
the left pedal.
•One of the D2 lights is on. When the material covers the
selected photocell, the adjustment of feed parameters for
inside corners is made active and the knife automatically
snips the edge of the component piece.
When the lowest D2 light is selected, the adjustment of feed
parameters for inside corners and the automatic activation of
Picture 9
Picture 10
COMELZ_ITALIA COM52-INGL 12
the knife are started also while folding ample corners, whereas the selection of segments on top makes the
adjustments only in correspondingly tighter corners.
Generally, select bottom D2 lights when processing rigid materials and top D2 lights when processing soft
materials.
The operator can override and activate the knife at any time, by heeling on the left pedal.
8.6.4.3 Feed pitch
T1 – It defines the amplitude of outside corners, by selecting which photocell starts the adjustment of feed
parameters for outside corners. Press repeatedly to select.
D3 - They indicate the selected photocell.
•All D3 lights off. The adjustment of feed parameters for outside corners is excluded.
The operator makes the feed pitch reduction active by pressing the right pedal with the toe.
•One of the D3 lights is on. When the material uncovers the selected photocell, the adjustment of feed
parameters for outside corners is made active.
When the rightmost D3 light is selected, the adjustment of feed parameters for outside corners is started also
while folding ample corners, whereas the selection of segments on the left makes the adjustments only in
correspondingly tighter corners.
Generally, when processing work-pieces that do not require feed pitch reduction, it is preferable to adjust the
machine with all light off.
The operator can override and activate feed pitch reduction at any time by pressing the right pedal with the
toe.
8.6.5 FOLDING MEMBERS, picture 11
Picture 11
COMELZ_ITALIA COM52-INGL 13
8.6.5.1 Creaser foot, pictures 11, 12 and 13
Adjust the position of the creaser foot by means of the
directional buttons T3-T4-T5-T6:
•Adjust the foot vertically, leaving a clearance of
approximately 0,5 mm from the work release arm
when this is in its higher position.
•Adjust the creaser foot horizontally, aligning it to the
right corner of the work release arm.
8.6.5.2 Guide, pictures 12 and 13
Adjust the position of the guide by means of the
directional buttons T7-T8-T9-T10:
•Adjust the guide vertically to obtain the required folding
width.
•Adjust the guide horizontally to obtain a gap between
the guide and the cutting block that is about double of
the thickness of the material being processed.
8.6.5.3 Lip turner, pictures 12, 13
Turn the pulley by hand to move the lip turner
all the way up.
Through direction buttons T11-T12 adjust the
lip turner approximately 1 mm away from the
creaser foot.
Curve correction
T13 – To adjust the horizontal movement of
the lip turner while folding corners, to
compensate the width of the folding. Press
repeatedly to select.
D4 – They show the value of the set
correction.
No light on indicates that the correction is
excluded.
Picture 12
Picture 13
COMELZ_ITALIA COM52-INGL 14
8.6.6 OPERATION MODE, Picture 14
Picture 14
8.6.6.1 Feed
T36 – It selects various feed modes for the piece being processed.
D17 - They indicate the selected mode.
•Pedal
The operator starts operations by pressing the pedal
•Start photocell
The machine starts automatically when the work-piece is inserted and it will work at the pre-set rotation
speeds (see paragraph Feed).
•Continuous
The machine turns continuously at the speed and feed pitch set for the straight edge.
8.6.6.2 Cement
T37 – It selects various cement-spreading modes.
D18 - They indicate the selected mode.
•No lights on
Cement spreading is excluded.
•Pedal
The cement is spread while the pedal is pressed.
•Start photocell
The cement is spread while the start photocell is covered. The spreading stops when the start photocell is
uncovered.
•Pedal + start photocell
The cement is spread while the pedal is pressed and the start photocell is covered. The spreading stops
when the machine stops and the start photocell is uncovered.
When it is not excluded, the spreading of the cement starts only after the start of the machine.
In case the “start photocell” feed mode is selected, also the spreading of the cement will forcedly occur
according to the “start photocell” mode, whichever mode was selected for the cement and provided that it is
not excluded.
It is nevertheless possible to open and close the cement flow at any time, by pressing the left knee-switch.
8.6.6.3 Presser foot - dropping
T38 – It selects various presser foot dropping modes.
D19 - They indicate the selected mode.
•Pedal
The creaser foot drops when the pedal is pressed.
•Start photocell
The creaser foot drops when the start photocell is covered.
•Pedal + start photocell
The creaser foot drops when the pedal is pressed and the start photocell is covered.
8.6.6.4 Presser foot - lifting
T39 – It selects various presser foot lifting modes.
D20 - They indicate the selected mode.
COMELZ_ITALIA COM52-INGL 15
•Pedal
The creaser foot goes up when the pedal is released.
•Start photocell
The creaser foot goes up when the start photocell is uncovered.
•Pedal + start photocell
The creaser foot goes up when the pedal is released and the start photocell is uncovered.
8.6.6.5 Knife
When the selected “knife” photocell is covered (see paragraph PHOTOCELLS), it starts the adjustment of feed
parameters for inside corners. At the same time the knife is activated according to the following modes:
T40 – It selects the various knife activation modes.
D21 - They indicate the selected mode.
•Snips at each feed step
The knife snips at each feed step.
•Alternated snips
The knife snips every two feed steps.
•No light on
The knife snipping is excluded, but feed parameters for inside corners are active.
Use “alternated snips” mode when the feed pitch set for inside corners is very short. This avoids lacerating the
material because of snips very near one another.
8.6.7 WORK AREA ILLUMINATION, picture 15
T35 – It turns the illumination lamp for the work area on and off.
8.7 MECHANICAL ADJUSTMENTS
8.7.1 Snip length
Adjust snip length moving the knife up or down.
8.7.2 Creaser foot working pressure
Adjust the working pressure of the creaser foot through the knob (picture 11).
8.7.3 Manual lifting of the creaser foot
Button for manual lifting of the creaser foot.
Knee-switch for manual lifting of the creaser foot.
8.7.4 Manual lifting of the guide
Button, picture 11.
8.8 REINFORCING TAPE
Place the reinforcing tape roll on the bar so that the tape unrolls in the lower part. Insert the tape in the eyelets,
then into the grommet and through the specific hole in the creaser foot tip.
9 USE OF THE MACHINE
Personnel trained for its use must operate the machine.
•Turn the machine on by means of the switch on picture 6. Wait about 20 minutes to let the cement melt.
•Insert the work-piece edge under the creaser foot, all the way inside the gap between the guide and the
cutting block.
•Start operations by pressing the pedal. (The machine will start automatically if the “start photocell” is
selected).
While processing a work-piece, the operator must guide it without pushing or holding it, so that the edge
constantly touches the back of the slot between the guide and the cutting block.
Caution! The operator must guide the work-piece with his or her fingers very near the creaser foot that
spreads the cement at 120 - 140 degrees C.
During operations, the operator can lift the creaser foot to fold over a seam by pressing the toggle switch,
picture 6, or by pressing the lever, picture 11.
•Fully release the pedal when folding is completed.
•Check the cement level in the pot now and then, and add cement before the pot is completely empty.
COMELZ_ITALIA COM52-INGL 16
Minimum level should not be lower than 2 cm.
10 MAINTENANCE OF THE MACHINE
The machine does not require specific preventive maintenance.
Caution! Always turn the machine off when carrying out maintenance.
10.1 REPLACEMENT OF THE KNIFE, picture 12
•Disassemble the guide and knife assembly.
•Remove the worn knife.
•Fit the new knife.
•Assemble the guide and knife assembly.
10.2 CLEANING
Clean external mechanisms once a day, with compressed air if possible.
10.3 LUBRICATION
•Daily. Lubricate the main shaft of the machine through its ball oiler.
Lubricate the machine overall, with special care for mechanical members.
•Weekly. Check oil level in the sump through its window.
•Yearly. Replace the oil in the sump. Empty it through the cap.
10.4 TESTING SAFETY DEVICES
Check the efficiency of safety devices once a week.
•When the machine is off, inspect shields A - B - C, picture 2, for possible damage.
11 PRODUCT FLAWS AND THEIR CAUSE
Follow the instructions given in the previous pages to adjust the machine.
•Cement comes out of the fold.
Too much cement.
Creaser foot too much to the left.
Creaser foot too hot.
•The folded edge opens.
Too little cement.
Creaser foot too hot.
•Uneven cement distribution.
Creaser foot too cold.
•The work-piece is not fed correctly.
Creaser foot too low.
•The work-piece is loose.
Creaser foot is too high.
•The snips of the knife are too long or too short.
The knife is too low or too high.
•The component piece is stretched after processing.
Too much pressure of the hammer.
Guide too near to the cutting block.
•Double folding.
Guide too far from the cutting block.
•Outside corners unevenly pleated.
Feed pitch is too long.
Hammer and anvil assembly too far from the creaser foot.
•Torn folded edge.
Lip turner too near to the creaser foot.
•Reinforcing tape not in the throat of the fold.
Lip turner too far from the creaser foot.
12 ERROR CODES
The following numbers appear on the D6 display in case of malfunctioning of the machine, alternating with the
temperature of the cement:
E01 Short-circuit in the creaser foot heating-element
E02 Short-circuit in the pump heating-element
E03 Short-circuit in the cement container left heating-element
E04 Short-circuit in the cement container right heating-element
COMELZ_ITALIA COM52-INGL 17
E05 Short-circuit in the illumination lamp
E06 Interruption in the connection of a heating-element
E07 Interruption in the connection of the thermistor
E08 Missing 12v power supply / Short-circuit in the thermistor
E09 Fan KV1B is not working
13 WEAR AND SPARE PARTS
•Lamp.
•Hammer.
•Lip turner.
•Knife.
•Guide.
•Cutting block.
•Cement filter.
•Cement container heating-element.
•Creaser foot heating element.
•Thermistor
•Creaser foot.
14 DISMANTLING THE COM52 FOLDING MACHINE
A few essential rules must be followed to protect the environment when it is necessary to dispose of the
machine.
•All components made of plastic or other non-metallic materials must be disassembled and disposed of
separately.
•Electric components (switches, transformers, motors and the like) must be re-used, if possible.
•Metallic parts of the machine must be disassembled and grouped according to the type of material.
They must then be demolished and melted separately.
15 SOUND LEVEL OF THE COM52 FOLDING MACHINE
Under standard working conditions the sound level is:
Leq at operator's place under working conditions 80 dB(A)
Lpc at operator's place under working conditions <130 dB(C)
Leq at operator's place under idle conditions 84 dB(A)
Lpc at operator's place under idle conditions <130 dB(C)
Material features
Various leather components
Thickness before folding 0,6 mm
Thickness (after folding) 1,2 mm
Overall length (average of various components) 250 mm
COMELZ_ITALIA COM52-INGL 18
16 WIRING DIAGRAM
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