At present, there are many types of laminating machines on the market, but in general, there are two main types of laminating machines: two types of coating laminating machines and pre-coating laminating machines. Instant coating laminating machine includes three parts: gluing, drying and hot pressing. It has a wide range of application and stable and reliable processing performance. It is currently widely used in China. Pre-coated laminating machine, no gluing and drying parts, small size, low cost, flexible and convenient operation, not only suitable for laminating processing of large batches of printed products, but also suitable for laminating small batches and scattered printed products such as automated desktop office systems Processing is very promising.
The pre-coating film laminating machine mainly has the following advantages: simple and easy to use, saving operation time. No foam, no wrinkles or delamination. After coating, the effect is brighter than traditional cold glue coating (oily, water-based), and the product can be stored for a long time without turning yellow. No solvent pollution makes the factory safer and environmentally friendly, and the workers are healthier. It meets the environmental protection requirements of European and American countries and has been widely used by European and American manufacturers.
How to choose a suitable pre-coating film laminating machine is, of course, to choose the latest pre-coating film laminating machine that is both good in operation, energy-saving and long-life, and has the following advantages: it can make the pre-coating film laminating The machine cost can be saved by about 45%; the pre-coating film laminator can be saved by about 50%; the self-adhesive laser film can be saved by about 60%; synthetic paper, PVC, PET, PP rolls can be Tubes and other materials are perfectly covered.

The amount of film used by the hot laminator during lamination is mainly related to the operation level. It is recommended to:
1. The product to be constructed must be straight. Handle uneven paper with "ruffled edge" and "tight edge" phenomena. Paper with "lotus edge" can be baked, and paper with "tight edge" can be hung to dry.
2. Be sure to wait for the blot to dry before coating, otherwise it will cause blistering or hair pulling.
3. Spray as little powder as possible during printing, otherwise it will cause emptying and bubbling at the powder pile. Before spraying the film, the powder should be disposed of. If the number of prints is large, the powder can be hung to remove the powder. If the number of prints is small, the powder can be wiped manually.
4. Pay attention to the direction of the paper strands, especially thick paper, to reduce the curling of the paper due to rolling and stretching.
There is also: the temperature is generally controlled to 40 ~ 60 ℃. Too high a temperature will deform the paper and film, causing the product to curl, but not too low, otherwise it will cause insufficient viscosity. The temperature of coated paper should be slightly lower than that of offset paper.

The operation of the pre-coating laminating machine includes three parts: gluing, drying, and hot pressing. The operation is relatively high. The advantage is that the quality of the finished product is reliable. The fatal disadvantage of the oil-based glue is that it produces gases that affect human health. This technology has been completely banned in developed countries such as Europe and the United States. Water-based adhesives are more environmentally friendly than oily ones, and their relative oily costs are higher.
The three major structures of the laminating machine are introduced as follows:
1. Automatic input of printed matter
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.
2. Hot-pressing compound mechanism of pre-coating laminating machine
The hot pressing compound mechanism includes a compound roller group and a calender roller group. The compound roller group is composed of heating pressure roller and silicone pressure roller. The hot pressure roller is a hollow roller, which is equipped with a heating device inside, and the surface is forged with hard chrome, and is polished and refined. The temperature of the hot roller is tracked by the sensor and corrected by the computer at any time. The compound pressure is adjusted by an eccentric cam mechanism. Stepless adjustment. The calender roller group is basically the same as the composite roller group, that is, it is composed of a chrome-plated pressure roller and a silicone pressure roller, but without a heating device. The main function of the calender roller group is: after the pre-coated plastic film and the printed matter are compounded by the composite roller group, the surface brightness is not high. After the secondary extrusion of the calender roller group, the surface brightness and adhesion strength are greatly improved.
3. Transmission system of pre-coating laminating machine
The transmission system of the pre-coating film laminating machine is driven by a high-power motor controlled by a computer. After being decelerated by a first gear, it is driven by a three-stage chain to drive the movement of the paper feed mechanism and the rotation of the silicone pressure roller of the composite part and the calendering mechanism. . The pressure roller set maintains a suitable working pressure under the action of steplessly adjusted pressure.

Society is constantly developing, living standards have been relatively improved, and the development of various industries also has good prospects. Take the cold glue coating machine, for example, it has also achieved inestimable prospects in related fields, but no matter how good the machine needs regular maintenance, so that it can make its service life longer and make more mistakes for the enterprise. Great contribution.
There are many opinions on the maintenance of the rotary film laminator. Here is a brief introduction about the maintenance method. Any machine equipment needs to be regularly inspected, especially the parts of the vacuum film laminator. We need to regularly check whether there is damage. The place should be replaced with new parts immediately; it is also very important for the cleaning of the machine. It is not allowed to be surrounded by people during the operation of the machine, and it is not possible to put debris on the equipment, which also prevents the machine from automatically returning to the heating hood Ways to hurt people.
The last point is to operate in accordance with the instruction manual, and prohibit incorrect operation, so as not to cause greater losses to the machine.

The pre-coating film laminating machine has been used for a long time, and it must be maintained. If the laminating machine is adjusted or improperly maintained, it is also easy to cause errors in the mounting of facial paper and corrugated cardboard.
The problems that often occur in the pre-coating film laminating machine are as follows:
(1) There is a loose phenomenon in the paper feeding chain mechanism, which makes the working coordination of the upper and lower chains inconsistent or unstable; the front regulations on the upper and lower chains are loose, which causes impact on the edge of the paper when feeding;
Treatment method: For loose front rules, according to the loose parts, the corresponding tight treatment should be taken in time;
(2) The contact position of the paper pressing steel strip to the facing paper is uncomfortable or the gap is too large, and it does not play a role in slowing down the inertial impact force of the cardboard at high speed;
Treatment method: Adjust the position of the paper pressing steel strip to maintain a certain friction with the cardboard to prevent the paper from being too violent and advanced; the glue or dirt on the upper and lower rollers should be cleaned regularly.
(3) The upper and lower rolling rollers accumulate a certain amount of glue because they are not cleaned frequently, which prevents the synchronous rolling transportation of facial paper and corrugated cardboard;
Treatment method: The chain of the pre-coating film laminating machine is the main component that drives the machine. It must be kept clean, so it should be cleaned, cleaned, and maintained with good lubrication in a timely manner.