640t – Installation and Operating Instructions
Idler Bars, Unwind Shafts, Rewind Shafts
Fig. 5-3. Idler Bars, Unwind Shafts, Rewind Shafts.
A.Upper Rewind
B.Upper Unwind/Supply Shaft
C.Lower Unwind/Supply Shaft
The Lower Idler directs Kraft Paper or images to the Lower Main Roller.
D.Upper Idler
The Upper Idler directs the film around the roller and is used as a point of release when using PSA films. The release liner will be separated and redirected to the Rewinder.
Not shown: Lower Idler Bar and Lower Rear Rewind
Rollers and Safety Sensor
Fig. 5-4 Upper and Lower Main Rollers and Safety Sensor.
A.Upper Main Roller
The Upper Main Roller lowers onto the Lower Main Roller to create the nip or the point at which the top and bottom rollers come into contact and the point at which the items to be laminated are introduced to the laminator.
•The Upper Main Roller is heated. The temperature is controlled by the Control Panel.
•The Upper Main Roller can be raised or lowered using the Roller Pressure Handle.
B.Lower Main Roller
The Lower Main Roller is driven and advances media into the nip. The Lower Main Roller is not heated.
C.Safety Sensor
The Safety Photo Sensor prevents entanglement, entrapment, and inadvertent contact with the rollers. The sensors are located on each side of the machine, in front of the bottom roller. They stop the machine when a hand or object blocks the invisible beam if you are not using the foot switch.
When the foot switch is used, the speed drops to 3 fpm (0.9 m).
WARNING: Keep your fingers and hands away from the nip point. Failure to observe
this warning could result in severe personal injury.
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