In the printing industry, automatic laminating machines are indispensable, and their work efficiency has been widely recognized, so what are the characteristics of automatic laminating machines? The following editor will take you to understand!
Automatic laminating machine is a kind of printed material that is made of plastic film through machine processing and printing on paper. This is widely used in people's daily life. It is mainly used in magazines, book covers, packaging boxes, calendars, paper bags, etc. It can be said to be everywhere. In the past, traditional laminating machines had low working efficiency and high labor costs. Nowadays, people have invented automatic laminating machines, which use modern advanced laminating technology to automate paper feeding and cutting, which greatly improves production. Efficiency, reducing the cost of manual input. Not only that, the color of the product after the automatic laminating machine is more beautiful and beautiful, and it is moisture-proof, easy to clean, and durable. Automatic laminating machine is generally composed of three parts: gluing, drying tunnel and hot pressing. For gluing, it mainly uses an adjustment device to adjust the amount of gluing to meet different needs. The drying tunnel mainly uses electric heating tubes and fans to complete the drying of the adhesive on the drying tunnel of 2 to 3 meters. Hot pressing is mainly to obtain a firm interface layer and achieve the purpose of being durable.
What are the coating forms of the automatic laminator? There are mainly roller reversal type, concave type, direct glue without scraper and direct glue with scraper.
1. Concave glue application. It consists of a metal glue roller with a textured surface and a group of film partition rollers. The glue roller is directly immersed in the glue solution, and the glue solution is taken out from the glue storage tank with the rotation of the roller. The excess surface is scraped off by the scraper Glue. Under the action of the film pressing roller, the glue in the groove of the roller is driven by the film to be coated which is directionally moved and is evenly spread on the film surface. The amount of glue can be controlled by adjusting the grid pattern on the surface of the coating roller shaft, the characteristic value of the adhesive, and the pressure value of the laminating roller. The advantage of concave coating is that it can control the amount of coating more accurately and coat evenly; however, the anilox roller is difficult to process and easy to damage, and it needs to be cleaned frequently. In addition, the coating requires higher adhesives.
2. Reverse roller coating. It is an indirect glue coating, which is the most widely used by various models. . The glue supply roller brings out glue from the glue storage tank, and the glue scraping roller and the glue plate can scrape the excess glue back to the glue storage tank. The film counter-pressure roller of the laminator presses the film to be applied to the surface of the glue roller after the glue is homogenized, and maintains a certain contact area, and the glue solution is continuously coated on the surface of the film under the action of pressure and adhesion. The amount of glue can be changed by adjusting the distance between the rubber roller and the rubber roller, and the rubber roller and the rubber sheet.
3. No-squeegee roller squeeze coating. The glue roller is directly immersed in the glue liquid. During the coating, the glue roller brings out the glue liquid and passes through the glue roller. After the glue is evenly glued, the glue is applied by the pressing force between the film pressing roller and the glue roller.

The advantages of automatic laminator technology are obvious:
First, if the automatic laminating machine does not use glue, the cost will be reduced a lot, and it is obviously reduced. Especially for the matt film and the laser film, the cost is basically reduced by about 10%.
Second, the automatic laminator is absolutely safe and environmentally friendly. In the past, those easily volatile harmful gases were very harmful to the human body during use. At the same time, after experiments, in a 5% caustic soda solution at 80°C, Putting the product into light agitation, the indentation of adhesive may show the phenomenon that the film and the paper are separated. The film floats up and the paper sinks, which is easy to recycle, so it is a product with a higher green level.
Third, due to the automatic laminating of the glue, the glue layer is 0.002～0.003mm after the initial drying, so the powder on the printing paper will appear to be uncompressed, and the product will be uncompacted. snowflake". But the automatic lamination without glue will not, because the film used in this technology is 0.017 ~ 0.02mm thick, and it becomes this thickness of glue in its hot melt state, so it can be used casually with less than half the pressure. No "snowflake" is produced, so there is no need to dust.
The conventional automatic laminating machine technology on the market adopts the method of adhesive laminating, and the method of the automatic laminating machine is different. The PE film with high pressure polyethylene as the main material is used. After the special treatment of the PE film is stopped, , You can load the PE film hot-melt on the color printing paper, after the automatic laminating machine processing, there will be no bubbles when rubbing hard, can withstand high temperatures of about 20 degrees to 120 degrees, automatic glue-free film In the process of the machine, a layer of auxiliary materials is inserted between the heating roller and the PE film, and passes through the automatic laminating machine together, and then the automatic laminating product is removed from the auxiliary materials. Due to the different materials used, the same kind of PE film can make light film, matt or other effects. First of all, high-pressure polyethylene blow molding PE film as the main material, that is because of its easy to obtain hot melt and plasticity.

Common faults and elimination of automatic laminating machine:
1. Horizontal wrinkles. This is due to the fact that the longitudinal tensile force of the mulch is less than the lateral tensile force, and the forward speed is uneven.
Solution: reduce the pressure of the left and right pressure film wheels; increase the clamping force of the film roll; the unit's forward speed should be uniform and consistent.
2. Longitudinal wrinkles. This is due to the fact that the longitudinal tensile force of the mulch film is greater than the lateral tensile force.
Solution: increase the pressure of the left and right pressure film wheels; reduce the clamping force of the film roll; appropriately reduce the forward speed of the unit.
3. Diagonal wrinkles. The reason is that the unit failed to drive straight, or the pressure of the left and right pressure wheel is not consistent.
Solution: Improve the operation technical level and make the unit run straight; adjust the two pressure film wheels to make the pressure even and consistent.
4. Deflected mulch. It is caused by the failure of the unit to drive in a straight line, or the installation of the film roll is not correct, and the film roll itself is not properly wound.
Solution: Realign the film roll to the front side and perpendicular to the direction of advance of the unit; the unit should travel at a uniform speed and straight line; check the film roll and replace it if necessary.
5. The film pressing wheel can't hold the mulch. This is due to the reasons that the unit is not running properly, the width of the film is not matched with the border surface, and the quality of the film itself is not good. It should be solved according to the specific situation.
6. After the film is spread, the curling and both sides are broken. For the occurrence of curling, the pressure of the film pressing wheel should be increased, the deflection angle of the soil shovel should be reduced, and the distance between the soil shovel and the mulch film should be adjusted. If the film breaks, the pressure of the two pressure film wheels should be reduced, and the quality of the land preparation should be checked.

Self-adhesive film laminating machine manufacturers introduced that we often see self-adhesive products in life, so what kind of adhesive is used for self-adhesive? In fact, the glue used for stickers is the adhesive.
Adhesive refers to an adhesive that is sensitive to pressure and only needs to use contact pressure to glue two different materials together. Apply the adhesive to thin flexible substrates such as paper base, cloth base or plastic to make adhesive products such as labels, tapes and films. Mainly used for packaging, office, vehicles, building finishing, protection, metal, plastic, etc.
The self-adhesive film laminating machine manufacturer stated that the pressure-sensitive adhesive tape is the most convenient to use, and therefore has developed the fastest. The pressure-sensitive adhesive tape is composed of pressure-sensitive adhesive, primer, base material, back-side treatment agent and release paper. What kind of glue is used for stickers? Pressure-sensitive adhesive is the most important part of the adhesive. It must have good adhesion between the adhesive tape and the adherend under external pressure.
The pressure-sensitive adhesive base material used for adhesives of adhesive laminating machine manufacturers is the basis for supporting pressure-sensitive adhesives. It requires good mechanical strength and small elasticity. It has good wettability to solvents, etc. Fabric, paper tape and plastic film.
What are the safe operation procedures and precautions for the operation of the adhesive laminator?
The self-adhesive film laminating machine is a mechanical device that divides a wide PVC film into multiple narrow materials. When operating the slitting machine, you should pay attention to the safe operation process:
1. Turn on
1. Turn on the electrical isolation switch (set in front of the electrical control cabinet), press the EMERCENCY STOP RESET and READY TO RUN buttons, the key opens the MACHINE to RUN (on the main operating platform) to check whether the voltage and current are correct and stable.
2. Turn on the power switch of the hydraulic system (set on the main hydraulic drive frame) to check whether the oil level and pressure gauge of the main hydraulic drive system are correct and stable.
3. Open the pneumatic shut-off valve (set on the air intake pipe under the pneumatic control cabinet) to check whether the air pressure is correct (not less than 6.0bar) and stable.
2. Setting control
1. Set the cutting menu according to the type, thickness, length, width, etc. of the PVC film arranged in the cutting plan.
2. Lift the corresponding PVC film file from the PDF.
3. Set the winding length and width of the film with corresponding specifications.
4. Select the corresponding winding station, adjust the roller arm and roller, and install the paper core of corresponding specifications.
3. Feeding, film passing and film joining
1. Feeding: According to the requirements of the cutting plan, according to the driving operation regulations, according to the actual situation, hang the corresponding parent roll on the aging frame, choose the direction according to the inside and outside of the corona surface, and place it on the cutting machine unwinding frame, and use The control button clamps the steel core, leaving the steel core support arm and driving.
2. Film penetration: When there is no film on the slitter, film penetration is required. Use the slitting device and function keys of the slitting machine to tie one end of the original film to the eye of the film linking chain, and activate the filming button so that the film is evenly distributed on each roller along the slitting process.
3. Membrane connection: When there is membrane on the slitting machine, when changing the roll joint, use the vacuum membrane table to start the membrane connection table to the working position, manually flatten the film on the first traction roller of the slitter and start the upper vacuum pump Suction the film to make the film flat to be adsorbed on the film receiving table, attach double-sided tape and cut off the excess film under the tape, flatten the film on the unwinding rack and start the lower vacuum pump to make the film flat to adsorb, remove the tape Put on the paper layer and level the adhesive film. The joints should be neat and wrinkle-free. Then turn off the upper and lower vacuum pumps, and open the film receiving table to the inoperative position.

How should the automatic laminating machine operate correctly? For consumers who have just started the automatic laminating machine, they are certainly not very familiar with the operation of the automatic laminating machine. For everyone to use the automatic laminating machine better, Xiaobian summarizes the automatic laminating machine for everyone Correct operation.
1. Check whether the pressing device and the rotating parts are in good condition before the automatic laminating machine starts work.
2. Clean up the dust and scum in the workbench.
3. Prepare necessary product pads (6-8 mm smaller than the workpiece) and other necessary materials.
4. Check and adjust the temperature and schedule settings according to the film thickness.
5. When processing multiple pieces together, arrange the appropriate distance according to the thickness of the processed board (generally 3-4 times the thickness of the board).
6. Before starting the heating hood, check whether the clamping frame is locked, whether there are objects and personnel hands on and around the guide rail.
7. During the operation of the machine, it is strictly forbidden to stand around the machine, let alone put your hand on the guide rail and equipment, to prevent the machine from automatically returning to the heating hood and hurting people.
8. It is strictly forbidden to place products and other objects on the heating hood.
9. Turn off the power immediately when the machine is found to be abnormal, and notify the supervisor.
10. Do not disassemble protective articles such as safety covers at will.
11. During work, the operator must not leave the machine.
12. Turn off the power when the work is completed.
The above is the correct operation method of the automatic laminating machine, I hope to help everyone.