Problems and solutions in the laminating process of the laminating machine.
One: crumpled paper
1. The film pulling force produces vertical folds of folded folds. Adjust the film tightness;
2. The film itself is loose and uneven. Adjust the film transmission stick;
3. The pressure is too high, the temperature is too high, horizontal wrinkle, adjust the pressure, and temperature;
4. The rubber pressure stick is deformed, disassemble the pressure stick, and regrind;
5. The paper is damp, keep the working environment and paper products dry or use drying in laminating;
Two: wrinkled film
1. If the temperature is too high, reduce the temperature appropriately and reduce the pressure to adjust the temperature required for various membranes;
2. Adjust the imbalance of the film feeding stick, adjust the balance of the film feeding stick;
3. The film stacking time is too long, replace the film;
4. The film tension is too large or too small, adjust the film tightness;
Three: There are snowflakes on the product
1. Too much powder sprayed on the printed matter, sweep away the powder sprayed on the printed matter before laminating;
2. The pressure of the pressure roller is inappropriate, the solution is to adjust the pressure of the pressure roller correctly;
3. If the temperature is too low, adjust to an appropriate temperature;
Four: bubbles appear
The pre-coating laminating machine consists of four main parts: pre-coating plastic film unwinding, automatic input of printed matter, hot-press area compounding, and automatic rewinding, as well as mechanical transmission, pre-coating plastic film flattening, vertical and horizontal slitting, and computer control system And other auxiliary devices. The automatic conveying mechanism can ensure that the printed products do not overlap and enter the composite part at an equal distance during transmission. Generally, pneumatic or friction methods are used to achieve control. The conveying is accurate and high precision. The same requirements can also be met when printed products with small composite width.
The laminator has high requirements for temperature control. If the temperature is too high and the heating time is too long, the film quality will decrease without heating. If the drying temperature is too high, the adhesive surface will form a skin, which will cause blistering of the film. Excessive thermal stress will also cause the film to lose its elasticity, resulting in reduced performance and easy tearing.
There are three methods of heat dissipation in physics: conduction, convection and radiation. The first two have been excluded. That can only be solved by thermal radiation. Radiation heat dissipation can not be affected by the temperature of the medium around the object. As long as the temperature of the object exceeds zero degrees, the object must go out Radiating heat, but the heat radiation amount of the object itself is very small, which can not solve the object's heat dissipation and cooling, only increase the heat radiation amount of the object to reduce the temperature of the object, so apply a layer of heat dissipation coating on the surface of the object Thermal paint greatly enhances the heat radiation of objects to reduce the temperature of objects.
The heat dissipation coating improves the heat exchange in the form of infrared radiation, and the heat dissipation is not affected by the surrounding medium. The heat dissipation of the paint can be used in a vacuum environment. The radiation heat dissipation cooling coating can improve the heat exchange and also have good self-cleaning properties. Insulation, corrosion resistance, water resistance, acid and alkali resistance, and convenient construction.
The use of the double-sided laminating machine: the double-sided laminating machine has a compact structure and is easy to operate. The electrical system is controlled by a programmable controller. The color touch screen can be operated by one person. The user only needs to enter the size of the paper to be processed on the text screen It can realize two processes of laminating and slitting. It is a device with excellent performance for small and medium-sized enterprises.
Features of double-sided laminating machine:
1. PLC control, host frequency conversion adjustment;
2. The adjustable side baffle of the paper feeding table ensures the paper feeding positioning;
3. The photoelectric stacking paper positioner automatically controls the overlap between papers;
4. Automatic air pressure system can provide stable laminating pressure. The pressure can be adjusted automatically according to needs
5. The air-expansion shaft releases the film, the film roll is easy to load and unload, and the film is positioned accurately. The film release shaft is equipped with a pneumatic brush car system to control the film release tension and speed;
6. Equipped with roll film side cutter and puncher; dual-channel punching device is convenient for users to choose and use for different specifications of paper and film;
7. The anti-curve device adopts a turbo gearbox for adjustment to ensure that the paper after lamination is smooth; after slitting, the paper is not in the curl;
8. Pneumatic tensioning system makes the paper separated automatically after laminating;
9. The upper heating roller and the lower heating roller are heated by cast aluminum heater, the temperature is controlled separately, the constant temperature performance is excellent, and the precise temperature of the double-sided film is ensured;
10. Using vibrating paper collecting device, the finished product after slitting is automatically collected and tidy;
Paper cutters are widely used in the light industry to cut various papers, plastic films, leather and other similar soft materials. Usually the paper cutter adopts the relay logic control mode, with many components, large equipment and low reliability. We have adopted a programmable controller to technically reform the paper cutter and achieved satisfactory results.
With the development of enterprises and the intensification of competition in the printing industry, many small and medium-sized printing companies that used to only print a single product or a few fixed products have to expand their business scope. According to market needs, they are engaged in small batches and multiple varieties. Product printing. The diversification of products, especially the printing of trademarks, requires high dimensional accuracy, large cutting volume, and tight delivery time, which places high requirements on cutting equipment.
Paper cutter operation process:
1. The operation process of the paper cutter manufacturer should check the machine before starting up, do a good job of cleaning, add oil or butter, try the empty knife three times, and observe whether there is a return knife. If a problem is found, it should be eliminated in time. During the process, if you find a return knife, you should park your car immediately and repair it in time.
2. When working, you must concentrate, and it is strictly forbidden for two people to operate at the same time.
3. When the machine is running, it is strictly forbidden to put your hand into the machine. If a fault occurs, it is strictly forbidden to grab the paper by hand, and you should stop the machine immediately.
4. When the operation process of the cutter manufacturer is adjusted and the cutter is replaced, it must be stopped. Even when the machine is stopped, it is strictly forbidden to put your hand under the knife to change the knife. You should use long-handle bolts and other tools to change the knife. You must remove it during the test to avoid accidentally injuring the operator when the machine is started.
5. The machine must be cut off when adjusting the machine, changing the blade, and when repairing, refueling, scrubbing and inspecting the equipment.