Window adjuster and operation

Preparatory preparation

1.1 Manufacture of stencil

According to the size of the paper film window, select a 0.5mm-thick PTFE gluing plate from a width of 300mm-720mm respectively, align the edge of the affixed paper with the side of the gluing plate, and then use the mark. The pen draws the outline of the window along the window on the gluing plate, and removes the gluing position line with a width of 5 mm along the outline of the window on the gluing plate with a marker pen. Use 2mm thick double sided adhesive tape to stick the rubber strip on one side and the other side to stick the rubber strip on the glue application position. At the same time, in order to make the rubber strip firmly adhered to the top gluing board, you can use adhesive paper to stick around the bottom of the rubber strip. layer. After the gluing stencil is assembled, its thickness is about 10mm.

Then, the hook-shaped strip of the gluing plate was embedded in the groove of the plate roller, and the other end was glued with the adhesive paper and the platen roller so that the sizing plate was tightly wrapped on the outer surface of the plate cylinder.

1.2 Cutting knife installation

Manually turn the cutter roller to the top, place the upper blade into the cutter knife slot so that the lower end of the blade is completely in contact with the bottom of the slot, and tighten the 18 M6×15 fasteners in sequence from the center to both sides. Set screws.

When inserting the lower blade, insert the blade through the body through hole into the knife holder seat. Use a wrench to tighten the middle one and the two ends of the two screws. Manually turn the cutter knife to turn the knife roll. Wait until the upper blade edge turns to the lower and lower blades. Align the disc with the knife edge and use the wrench to adjust the 19 M8×110 screws one by one so that the clearance between the upper blade and the lower blade is controlled between 0.03-0.05mm. Tighten the 18 M10×95 screws to press the lower plate and tighten the plate. M8 nuts.

Each edge of the cutting blade can be used alternately. When the edge of the blade becomes blunt, it is necessary to continue to use the two planes. Generally, new blades are installed in the cutter roller, and the lower blade can control the gap between the blade and the upper blade by adjusting the protruding height of the blade through the M8×110 screw.

The gap adjustment of the upper and lower blades must be very careful and careful, otherwise it will cause damage and faster wear.

1.3 Film and glue preparation

The film pasting the window is made of polypropylene (PP) and polyethylene (PE). The width of the film roll is generally 15-20mm wider than the window. Beforehand, according to the width of the upper window of the paper product, a good full-rolled diaphragm is mounted on the rack device at the tail of the host. The length of the diaphragm is generally 30mm longer than the length of the window.

Different diaphragms should be equipped with the appropriate glue, generally selected water-soluble white glue, glue should meet environmental standards, does not contain toxic substances and substances that will not harm the ozone layer. The premise of the equipment is based on glue sticking the film.
2. Adjustment and operation

2.1 Feeding paper

After the paper products that need to be filmed after die-cutting and indentation are tidyed, they are piled on the paper-feeding table with the tilt of the feet, and the lower paper sheet is pulled out from the paper stack by the paper-feeding belt during rotation. As the feed belt rotates, the paper product enters the feed device after passing between the feed belt and the press wheel.

2.2 Conveyance of paper products

After the paper product enters the paper feeding device through the paper feeding belt, the paper product is conveyed forward by the pushing paper stopper on the chain and pushes the rear end of the paper product, and is sent along the upper and lower guide rails and the left and right guide guides that have been adjusted to a good distance. To the gluing device on the vacuum conveyor.

Due to the changes in the specifications of the processed paper products and the differences in the window positions, the necessary adjustment of the paper product conveying position is required.

Feed position adjustment

Select the position of the feed belt according to the shape of the paper to be processed, release the tension pulley of the feed belt, move the feed belt to the desired position and fix it.

Loosen the star handle on the roller frame and move the platen roller on the roller frame so that the transfer roller aligns with the platen roller and tighten the star handle.

Paper conveying position adjustment

When the film paper product adopts the push paper stoppers on two conveyor chains to push the paper products at the same time, or when there are two push paper gauges, the screws on the sprocket wheel can be loosened, and the chain is pulled by hands to move the empty sleeves. The sprocket idling on the driving shaft can drive the paper jam block on the chain to move back and forth, so that the gear can be adjusted to a suitable position for pushing the paper jam and then the screws can be locked.

2.3 Adjustment of glueing device

Adhesive adjustment

Loosen the two star-shaped handle screws and rotate the two handles on the left and right sides of the small wall plate at the same time to adjust the gap between the rubber roller and the glue roller. The handle rotates upwards, the gap between the two rubber rollers is small, and the amount of glue is small. Conversely, when the handle is turned downwards, the amount of glue is large. After adjusting to the proper amount of glue, tighten the star-shaped handle screws.

In order to prevent the glue on the glue roller and the rubber roller from condensing during shutdown, a motor is provided on the glue roller. When the host machine stops, the motor starts the glue roller and the roller to continue to rotate.

2.4 Glue

The delivery of the paper products at the gluing and foiling station is carried out by 11 flat belts with holes. The suction pump generates negative pressure through the small hole in the flat belt to adsorb the paper jam on the moving conveyor belt so that the paper jam maintains the correct position and enters the gluing position. The glue roller conveys the glue liquid to the rubber roller. The rubber roller then applies the glue to the rubber strip of the plate. When the paper product is transported to the platen roller, the two electromagnetic plates inside the left and right wall plate The iron is sucked, and the lever is driven to force the suction plate to rise, and the glue on the rubber strip is properly pressed to the window of the paper product through the rotation of the roller.