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Laminators
Manual
This laminator manual contains the information
below in blue. Click on a link to take you directly to that
section, or scroll down to view entire manual. |
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INSTALLATION
OF LAMINATOR
- Open crate, cut straps & remove parts strapped
to conveyors, heat banks, conveyor sections, etc.
Remove boxes from base.
- Cut straps holding base to skid, remove nails or
bolts from leg sections.
- Set base in desired location and level, Place a
3/4" washer from parts bag (in base) under carriage
bolts. Note: carriage bolts have lock nuts under
bottom of base.
- Add next conveyor section and level.
- Repeat Step 4 for first infeed section.
- Install side guide wheels, bolting to pem nuts in
conveyor flanges.
- Put long laminate guide (aluminum angle) in place
on left side of P & C frames. Secure loosely
with jergens knobs (2).
- Mount short laminate guide (stainless steel) to
laminate down chute (black expanded mesh framework),
matching slotted tabs & securing with jergens
knob w/ stud and square nut with tension pins.
- Temporarily remove the guard in front of the compression
rollers. Place a square substrate between
the rollers approximately one half inch from the edge
of the rollers. Square against front of rollers by
using a straightedge against the front of both rollers.
- When board is square, tighten compression rollers
to hold firmly.
- Adjust side guide wheels to edge of board as far
back as possible.
- Loosen compression rolls and move board back, adjusting
wheels as you go, Note: conveyor rollers are offset
to bring board to guide wheels.
- Align laminate guides to match board guides.
- Dry run to check registration of laminate to substrate.
Adjust as needed; registration may change slightly
when gluing.
- Mount heat banks - leave protective foam & board
on face until hung. Mount hanger on pin at bend
of laminate chute. Mount control side first, then
the power side. When done secure with 5/16"
set collars.
- To set height of heat banks, lock 3/4" board
in compression rolls. Set second board (3/4")
under heat banks. Loosen the two 3/8" bolts
on either side where angle bracket supports laminate
down chute. Adjust so that heat banks are barely
on or slightly above board. Tighten bolts securely.
Set infeed side of heat banks with turnbuckles about
1/4" to 3/8" higher than face of board.
- Wire power leads of heat banks to bottom of relays.
Bank closest to compression rolls is connected to
left relay.
- Mount glue on pay out bar. Adjust so that there
is about 1/4" overhang of glue on the edge of
the substrate.
- Mount out feed conveyor to brackets near compression
roller. Set height so that end of conveyor is approximately
3/4" lower than at base. Substrate exiting
compression rolls must clear first conveyor roller
by 1/16" - 1/8".
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S and
LS PROCEDURES
S SERIES LAMINATOR OPERATING PROCEDURES
- Turn on machine power,then follow ( s series
) operating procedure.
NOTE: Follow
initial machine setup values,established during
installation or by material specifications.
(SEE MATERIAL SPECIFICATIONS)
- Allow machine to heat thoroughly ( 5 to 8 minutes
). Also allow ample time for glue cutoff knife
to heat thoroughly.
- Unroll adhesive from payout bar . Thread adhesive
between knurled rubber rollers, so adhesive hangs
half the thickness of substrate height.
NOTE:
Adhesive payout assembly should be adjusted to
substrate prior to adhesive loading.
(SEE ADHESIVE PAYOUT PROCEDURES)
- Load substrate onto infeed conveyor guiding
substrate against side guide wheels,push forward
until substrate reaches adhesive payout. Make
sure that adhesive has proper overhang , before
feeding substrate through payout.
NOTE:
(SEE ADHESIVE
PAYOUT PROCEDURES)
- Advance substrate through adhesive payout until
cutoff point is reached. This point is determined
by the operator by sight alignment. Then the adhesive
cut off is actuated to cut adhesive, via hand
actuator.
NOTE:
The adhesive should over hang substrate by half
of it's thickness. (SEE ADHESIVE CUTOFF
PROCEDURES)
- Substrate and laminate are ready to feed through
board drive and laminate loading areas to be laminated.
The operator will now advance the substrate onto
drive rollers were it will advance automatically.
The substrate will pass under heat banks and the
adhesive will flash activate. At the same time
the operator will feed laminate down laminate
chute indexing laminate to laminate end registration
block on rear laminate guide making sure laminate
is squarely positioned against laminate guide.
When board reaches pinch roll, laminate and subatrate
will meet and be compressed and advance onto outfeed
section of laminator.
NOTE: Pinch
roll adjustment should be set prior to this step,
(SEE PINCH ROLL ADJUSTMENT PROCEDURES).
- The panel is now at approximately 75% of full
strength. when panel cools it's at virtually 100%
bonding strength.
- If panel will be double sided, it must be removed
and rerun following the same procedures as above.
NOTE:
That there will be
(PINCH ROLL ADJUSTMENT PROCEDURES)
for second side and also follow
(MATERIAL SPECIFICATIONS).
S SERIES REGISTRATION PROCEDURES
Substrate To Pinch Roll Registration
Preliminaries
Insure MAIN POWER
is on.
Turn SPEED CONTROL KNOB to zero.
SUBSTRATE TO PINCH ROLL REGISTRATION
-
Load substrate onto infeed conveyor,
advance substrate into drive area.
-
When ready turn on run speed to
20%,advance substrate onto drive rolls.
-
Stop substrate even with face
of pinch rolls.
NOTE: Use
emergency stop button. This will be much easier
than using control panel!
-
Check alignment of substrate to
face of pinch rollers, substrate needs to be parallel
with roller face.
NOTE: To
check alignment of substrate to pinch rolls,use
(combination) square. Align from machine base
to bottom pinch roller substrate should be checked
from both sides, to ensure that it's parallel.
It must also be offset from guide roller side
by at least 1-3/8, to allow for side guide roller
adjustment.
-
Tighten first side guide wheel,
then tighten last side guide wheel that makes
contact with substrate.
-
Check alignment of substrate with
pinch roll face, if alignment is ok tighten down
remaining side guide wheels in contact with substrate.
NOTE: If
substrate is out of alignment, loosen side guide
wheels and repeat step # 4.
-
Push substrate back one side
guide wheel at a time, tightening each side guide
wheel.
NOTE:
As substrate travels back , check side guide wheels
parallel alignment to each other (I.E. Line of
sight should show, that wheels are in line and
approximately the same distance from conveyor
edge). If wheels begin to move in or out adjust
rear of conveyor according to wheel movement,
moving conveyor in that direction.Then repeat
steps #1 thru 7.
-
Release emergency stop run substrate
through the machine again, and check alignment
to pinch rolls.
NOTE:
If alignment checks ok! (+/- 1/16) continue onto
laminate registration . If alignment is out repeat
steps #1 thru 8.
Laminate to substrate side registration
preliminaries
Insure MAIN POWER
is on.
Turn SPEED CONTROL KNOB to zero.
LAMINATE TO SUBSTRATE SIDE REGISTRATION
-
Load laminate onto laminate rack
, use two sheets for this procedure.
-
Guide laminate down( laminate
guide chutes) until it appears from under pinch
roll, and aligns with edge of substrate.
-
Check alignment of laminate to
substrate, laminate should be parallel to front
edge of substrate !
NOTE:
Desired side alignment is set by adjusting laminate
along length edge of the board. Set over hang
1/8 to1/4 of a inch. Alignment may be set parallel,
but remember all materials are not square!
-
Adjust laminate downer side guide
so laminate edge is in contact, tighten jergans
knob.
-
Measure from edge of first leg
to outside of laminate guide.
-
Use measurement from step #5 to
align second and third leg section side guide,
then tighten down jergans knobs.
-
Laminate should now be in contact
with side guide chute for it's entire length.
LS SERIES LAMINATOR OPERATING PROCEDURES
- Turn on machine power,then follow NT2S (TOUCHPAD)
operating procedures.
NOTE:
Follow intiail machine setup values,established
during installation or by material specifcations
(SEE MATERIAL SPECIFICATIONS)
- Alllow machine to heat thoroughly ( 5 to 8 minutes
). This will be indicated by a light on G10 (TOUCHPAD).
Also allow ample time for glue cutoff knife to heat
thoroughly.
NOTE:
There is also a RED light to indicate when machine
is still cool.
- Unroll adhesive from payout bar . Thread adhesive
between knurled rubber rollers, so adhesive hangs
half the thickness of substrate height.
NOTE:
Adhesive payout assembly should be adjusted to substrate
prior to adhesive loading
(SEE ADHESIVE PAYOUT PROCEDURES).
- Load substrate onto infeed conveyor guiding substrate
against side guide wheels,push forward until substrate
reaches adhesive payout. Make sure that adhesive
has proper overhang, before feeding substrate through
payout.
NOTE: (SEE ADHESIVE
PAYOUT PROCEDURES)
- Advance substrate through adhesive payout until
cutoff point is reached. This point is determined
by the operator by sight alignment. Then the adhesive
cut off is actuated to cut adhesive, via hand actuator.
NOTE: The
adhesive should over hang substrate by half of it's
thickness (SEE ADHESIVE CUTOFF PROCEDURES)
- Register laminate to load position. Operator will
index laminate to laminate stop pin, making sure
laminate is squarely positioned agianst laminate
guide. lamiate is now ready to be driven automatically
to meet substate at pinch piont.
NOTE:
Pinch roll adjustment should be set prior to next
step, (SEE PINCH ROLL ADJUSTMENT PROCEDURES).
- Substrate and laminate are ready for auto feed,
through board drive and laminate drive areas to
be laminated. The operator will now advance the
substrate onto drive rollers were it will advance
and trip auto laminate drive via limit switch located
in board drive area. The substrate will pass under
heat banks and the adhesive will flash activate,
at the same time the laminate will travel down laminate
chute.The two will meet at pinch and be compressed
and advance onto outfeed section of laminator.
- The panel is now at approximately 75% of full
srength. when panel cools it's at virtually 100%
bonding strength.
- If panel will be double sided, it must be removed
and follwing the same procedures as above run panel
again.
NOTE: That
there will be
(PINCH ROLL ADJUSTMENT PROCEDURES) for
second side and also follow (MATERIAL SPECIFICATIONS).
LS SERIES REGISTRATION PROCEDURES
SUBSTRATE TO PINCH ROLL REGISTRATION PRELIMINARIES
Ensure power is on,then set
operating function."
Turn start/run function to (ON).
Turn motor control to (OFF).
Turn laminate drive to (off).
SUBSTRATE TO PINCH ROLL REGISTRATION
-
Load substrate onto infeed conveyor,
advance substrate into drive area.
-
When ready turn on motor control,
set run speed to 20%,advance substrate onto drive
rolls.
NOTE:
Use emergency stop button. This will be much easier
than using control panel!
-
Stop substrate even with face
of pinch rolls.
-
Check alignment of substrate
to face of pinch rollers, substrate needs to be
parallel with roller face. It must also be offset
from guide roller side by at least 1-3/8, to allow
for side guide roller adjustment.
NOTE:
To check alignment of substrate to pinch rolls,use
square (combination). Align from base to bottom
roller and check from side to side.
-
Tighten first side guide wheel,
then tighten last side guide wheel that makes
contact with substrate.
-
Check alignment of substrate with
pinch roll face, if alignment is ok tighten down
remaining side guide wheels in contact with substrate.
NOTE:
If substrate is out of alignment, loosen side
guide wheels and repeat step # 4.
-
Push substrate back one side
guide wheel at a time, tightening each side guide
wheel.
NOTE: As substrate travels back , check side guide
wheels parallel alignment to each other (I.E.
Line of sight should show, that wheels are in
line and approximately the same distance from
conveyor edge). If wheels begin to move in or
out adjust rear of conveyor according to wheel
movement, moving conveyor in that direction.Then
repeat steps #1 thru 7.
-
Run substrate through the machine
again, and check alignment to pinch rolls.
NOTE:
If alignment checks ok! (+/- 1/16) continue onto
laminate registration . If alignment is out repeat
steps #1 thru 8.
Laminate to substrate side registration
preliminaries
Insure power is on.
Turn start/run function to (ON).
Turn motor control to (OFF).
Turn laminate drive to (off).
Loosen jergans knobs on laminate side guide
LAMINATE TO SUBSTRATE SIDE REGISTRATION
-
Load laminate onto laminate rack
, use two sheets for this procedure.
-
Guide laminate up to drive roll
assembly, ensure laminate drive is off.
-
Guide laminate down( laminate
guide chutes) until it appears from under pinch
roll, and aligns with edge of substrate.
-
Check alignment of laminate to
substrate, laminate should be parallel to front
edge of substrate !"
NOTE:
Desired side alignment is set by adjusting laminate
along length edge of the board. Set over hang
1/8 to1/4 of a inch. Alignment may be set parallel,
but remember all materials are not square!
-
Tighten laminate guide chute jergans
knob on guide side. Laminate should be in contact
with side guide chute for it's
entire length.
-
Adjust laminate side guide front
end so laminate edge is in contact. tighten jergans
knob.
-
Measure from edge of first leg
to outside of laminate guide.
-
Use measurement from step #7 to
align second and third leg section side guide,
then tighten down jergans knobs.
-
Lower pinch roll until compression
is achieved,turn on motor and drive material onto
outfeed.
S & LS SERIES PINCH ROLL ADJUSTMENT
PROCEDURES
-
Pinch roll adjustment is accomplished
by rotating hand wheel, in either a clockwise
or counter counterclockwise rotation.
-
Clockwise rotation will increase
the opening!
-
Counterclockwise will decrease
the opening!
NOTE: ONE
FULL ROTATION WILL INCREMENT OR DECREMENT PINCH
ROLL BY .040 INCH.
-
First time adjustment
of pinch roll.
A. Set pinch to fully closed
position.
B. Open pinch roll slowly by
a clockwise rotation.
C. Watch digital readout, until
desired opening is achieved (ACCORDING
TO SUBSTRATE THICKNESS & LAMINATE THICKNESS).
D. Run substrate & laminate
into pinch roll.
E. Set compression by slowly
lowering pinch roll by counterclockwise rotation,
approximately 3/4 of a turn or .030 inch.
NOTE:
THIS WILL VARY WITH MACHINE SETUP AND MATERIAL
TYPE.
-
Material size change from
first setup
A. Open or close pinch roll according
to material size , by either clockwise or counterclockwise
rotation."
B. Watch digital readout, until
desired opening is achieved (ACCORDING
TO SUBSTRATE THICKNESS & LAMINATE THICKNESS).
C. If laminate size isn't changed,
compression is achieved by adjusting for substrate
size difference only! If laminate is changed,
the difference should be accounted for in compression
adjustment!
- "Quickie" pinch roll adjustment
A. Find a piece of prelaminated
material of desired size, (SHOULD BE ABOUT
6"" X 12"" OR LARGE).
B. Open pinch roll quickly past
desired height,insert prelaminated material into
pinch roll.
C. Lower pinch roll until desired
compression is achieved.

S & LS SERIES
ADHESIVE PAYOUT PROCEDURES
-
The first step in operation
of adhesive payout is to load adhesive.
A. Place aluminum core support
onto payout bar.
B. Load adhesive onto payout
bar also assuring to place aluminum core in middle
of adhesive roll.
C. Place core chucks onto payout
bar ,tapping them into ends of adhesive roll firmly."
D. Place both set collars on
guide side of payout bar, then load payout bar
into loading cradle."
E. Center payout bar in cradle
and lock set collars down, to prevent payout bar
from moving side to side."
-
Align adhesive to substrate.
A. Place substrate onto infeed
conveyor, move it forward to set adhesive drive
roll height (UNDER DRIVE ROLL). If drive roll
is at bottom of it's allowed travel you must lift
it by loosening jergans knobs on both sides of
slides.
Lift roller and move substrate forward allowing
drive roll to rest on substrate,then tighten jergans
knobs down tightly.
A1. If drive roll is above substrate
loosen jergans knobs on both sides of slides,
allowing drive roller to drop onto substrate.
Make sure roller is flat on substrate then tighten
jergans knobs down tightly.
B. Adhesive alignment is now
achieved by pulling adhesive down to substrate
, then move adhesive roll so there is a overhang
of adhesive on both sides of substrate of a one
/ quarter inch. Then tighten thumb screws on both
core chucks, make sure that adhesive roll doesn't
move when tightening.
C. Feed adhesive through adhesive
pinch roll assembly, by placing adhesive between
first and second roll. Then push substrate forward
advancing adhesive through adhesive payout assembly,
caution make sure to adjust adhesive for even
tension across width. To do this lift first roll
slightly, adjusting tension on adhesive by pulling
out or holding back on adhesive roll. Then release
first roll when tension is even!
NOTE: When
changing from one adhesive roll to the next, no
matter what width the guide side hardware will not
be removed. (I.E. SET COLLAR AND CORE CHUCK).
NOTE: When
ordering adhesive make sure to order adhesive 1/2"
inch larger than substrate.

(S) SERIES CONTROL PANEL
OPERATING PROCEDURES
NOTE: MAKE
SURE MACHINE DISCONNECTS SWITCH IS TURNED TO THE
ON POSITION!
Establish parameters for your companies’ specific
material.
SWITCHES
-
Main power switch
located on control panel when turned to on position
will light lamp one.
-
Cold start cycle
on/off switch turned to the on position will actuate
heater warm up. This will apply full power to
both heaters for set warm up time. The time period
is controlled by control relay (CR1). This function
switch will not reset unless the switch is turned
off. This operation is a one time cycle (ONESHOT).
NOTE: This function will
not work unless the heatbank on/off is in the
on position.
-
Heatbank on/off
switch is the main control for both heaters. The
switch allows you to switch between heatbank three
or heat banks 1&2. (SEE MATERIAL SPECIFICATIONS)
-
Cutoff on/off
switch controls hot knife operation for glue web
cutoff.
SPEED & HEATERS 1
& 2 CYCLE TIME
-
Speed control
knob located upper right corner of lower control
can face, is used to control machine speed.
NOTE: This
setting will be determined upon setup or see material
specifications.
- Heaters 1 & 2 temperature controller located
directly below speed control knob used to control
heat.
NOTE: This
time setting will be set during setup or see material
specifications.
DIGITAL READOUT
Digital readout is located
in lower control face and is used to monitor &
control heat output.
NOTE: This
output is determined during setup.

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| Machine
Diagram

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Maintenance
Information
- Lubricate Jackshaft monthly
- Lubricate chain monthly using
oil
- Blow off daily - (laminate chute/chain
drive area)
- Clean glue from compression rolls
as it builds up. Use mineral spirits or
3M "Citrus Base Cleaner" to soften
build up; take care to avoid scratching rollers.
To prevent build up on chrome compression roller
the use of a silicone release spray is recommended.
(Release spray MUST be non-petroleum based.)
- Replenish oil & drain water
from air lubricator/separator as needed.
- Grease nip roll screws weekly.
- Lubricate drive roller bearing's
weekly with high temp non-melting grease.
(McMaster Carr # 1213K71 cartridge)
- Grease nip roll bearings quarterly.
- Check gearbox fluid level annually.
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| Replacement
Parts List for HMT Laminating System
Drive Assembly
| Quantity |
Description |
HMT
Part # |
| 1 |
1/4 HP Adjustable
Speed Motor |
L0001 |
| 1 |
Gear Reducer |
L0002 |
| 1 |
40BS20X1 Sprocket |
L0270 |
| 2 |
40-B-12 Sprocket
w/bushing and shoulder bolts |
L0720 |
| 1 |
40 Pitch Chain |
L0298 |
| |
Jackshaft Assembly
|
L0742 |
| 1 |
35BS18 X 1/2
Sprocket |
L0264 |
| 1 |
35BS12 X 1/2
Sprocket |
L0263 |
| 1 |
Jackshaft Collar |
L0302 |
| 1 |
Jackshaft |
L0304 |
| 2 |
Bushings |
L0262 |
| 1 |
35 Pitch Chain |
L0299 |
| 1 |
35-A-40 Sprocket |
L0407 |
| 1 |
Elastomeric
Tensioner |
L0280 |
| 1 |
Tensioner Sprocket |
L0266 |
| 2 |
Drive Roller
3" Vulcanized 50/60 |
L0662/L0660 |
| 3 |
Drive Roller
3" Steel 50/60 |
L0663/L0661 |
| 1 |
Drive Roller 3" Aluminium
50/60 |
L0717/L0718 |
| 1 |
35B510 X 1/2 Idler With
Bolt |
L0719/L0150 |
| 6 |
35B53X1 Drive Sprocket |
L0639 |
Nip Roll Assembly
| Quantity |
Description |
HMT
Part # |
| 1 |
Return Spring |
L0255 |
| 1 |
Rubber Roller
50" |
L0512 |
| 1 |
Rubber Roller
62" |
L0514 |
| 1 |
Steel Roller
50" |
L0511 |
| 1 |
Steel Roller
62" |
L0513 |
| 4 |
TU350 Slide
Bearings (Upper)
R409 L410 |
L0287 |
| 1 |
40-B-30 Sprocket
(Steel Roll) |
L0738 |
| 1 |
With Roller
Bearing #L0274 & Outer Race # |
L0273 |
| 1 |
Handwheel 10" |
L0414 |
| 1 |
2000# Screw
Jack |
L2509 |
| 1 |
Bottom Sprocket
40SH30 with QD bushing |
L0257
& L0258 |
| 1 |
35 Pitch Chain |
L0299 |
Heat Banks
| Quantity |
Description |
HMT
Part # |
| 2 |
50" 220
Volt Heat Beak Assembly-no hangers |
L0801 |
| 2 |
50"
240 Volt Heat Bank Assembly-no hangers |
L0802 |
| 2 |
50"
480 Volt Heat Bank Assembly-no hangers |
L0804 |
| 2 |
62"
220 Volt Heat Bank Assembly-no hangers |
L0805 |
| 2 |
62"
240 Volt Heat Bank Assembly-no hangers |
L0806 |
| 2 |
62"
480 Volt Heat Bank Assembly-no hangers |
L0807 |
Web Cut Off
| Quantity |
Description |
HMT
Part # |
| 1 |
Web cut off
assembly 50" |
L0704 |
| 1 |
Web cut off
assembly 62" |
L0705 |
| 1 |
Rope heater
50" |
L0083 |
| 1 |
Rope heater
60" |
L0084 |
| 1 |
Blade 50" |
L0396 |
| 1 |
Blade 62" |
L0395 |
| 1 |
Cut off support
50" |
L0379 |
| 1 |
Cut off support
62" |
L0380 |
| 5/6 |
1/4 X 1"
shoulder bolt |
L0152 |
| 10/12 |
Spring |
L2252 |
Electrical
Control Box
|
Quantity |
Description |
HMT Part # |
| 1 |
KBI Motor
Controller |
L0004 |
| 1 |
Tenor percentage
timer |
L0005 |
| 1 |
Neon lights |
L0058 |
| 1 |
DPST on-off
switch |
L0079 |
| 1 |
SPST on-off
switch |
L0080 |
| 2 |
Fuse holder
AGC |
L0052 |
| 2 |
Fuse AGC4 |
L0010 |
Electrical Panel
| Quantity |
Description |
HMT Part # |
| 1 |
Buss fuse
holder |
L0051 |
| 2 |
5 amp FNM-5
fuse |
L0011 |
| 2 |
15 amp FNM-15
fuse |
L0012 |
| 1 |
10 amp FNM-10
fuse |
L0037 |
| 1 |
100 A disconnect
switch |
L0040 |
| 1 |
Switch Activator |
L0041 |
| 2
|
60 amp 240v
fuseblock |
L0014 |
| 6 |
60 amp 240v
fuse |
L0015 |
Troubleshooting
Guide
| Problem |
Symptom |
Solution |
| Machine wont start |
Main switch on, but no lights |
Check main circuit breaker or
disconnect. Check fuses in cabinet |
| |
Main switch on Panel lights
on |
Check fuses in cabinet |
| Heat banks not working |
Drives works but no heat output |
Check heat bank selector switch
for proper position. Check temperature controller
setting. Check fuses in base |
| Drive rollers not on. |
Drive rollers not turning. Heat
banks on. |
Check speed control setting.
Check fuses on control panel. |
| Air engaged laminate or substrate
drivers won't engage. (LS Series) |
Drivers don't shift into drive
position |
Check air supply. Check pressure
setting. Check lube oil supply |
| Cutoff not working |
No heat on cutoff bar |
Check switch setting. Check
fuses in base. Check elements for open. |
| Laminate mis-registration (S
Series) |
End of laminate not registered |
Check laminate stop position.
Check laminate for varied lengths. |
| Laminate mis-registration |
Side of laminate not registered |
Check laminate for width variation.
Check variation of board side guide wheels.
Check relation between laminate guide and
side guide wheels. |
| Lamination Problems |
Likely Causes |
| Entire Laminate comes off easily |
Compression too loose. Laminate
and/or substrate is too cold. |
| Glue is cloudy/milky - all on
board |
Temp is too low. Speed is to
high. Heating elements are burnt out. Heat
banks are to high from face of board. Rear
of heat bank is to high. Draft under heat
bank. |
| Good bond on edges only. |
Cold board brought in from outside-center
of bunk still cold. Entire substrate
and laminate should be at room temperature,
min 65 degrees F. |
| No glue on edges |
Glue not proper width. (Min
1/4" overhang on each side. Not
positioned properly. Air draft is rolling
edges up. |
| Glue catches on heat bank. |
Infeed edge set too low-adjust
with turnbuckles. Air caught between
glue and substrate when feeding out glue. |
| Glue build up on nip rollers |
Laminate is smaller than substrate
or misregistration. |
| |
Glue can be removed by softening
with mineral spirits or 3M Citrus Cleaner
and scraped with pieces of laminate or plastic
razor blades. |
|
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