The pre-coating laminating machine is a special equipment that combines printed materials with pre-coated plastic films. The main structure is composed of four parts: film unwinding, automatic input of printed materials, hot-press laminating, and automatic rewinding. Compared with the film machine, there is no need for adhesive coating and drying parts, so the structure is compact, small in size, low in cost, easy to operate, easy to use when starting, large production flexibility and high efficiency. The compounding of the pre-coated film and the paper printed matter only needs to be hot pressed. It is suitable for all kinds of laminating machines, laminating machines and plastic sealing machines with hot pressing function. No need to make any changes to the bridge type combination laminating machine of the glue-coated wet composite process, it can be completely coated with pre-coated film.
        1. The automatic conveying mechanism of the printed product input part of the pre-coated laminating machine can ensure that the printed products do not overlap during the transmission and enter the composite part at an equal distance. Generally, pneumatic or friction mode is used to achieve control. The printed matter can also meet the above requirements.
        2. The composite part of the pre-coating laminator includes a composite 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 of the pre-coating laminator is: after the pre-coated plastic film is combined with the printed matter by the composite roller group, the surface brightness is not high, and then the secondary extrusion of the calender roller group, the surface brightness and adhesion The intensity is greatly improved.
        3. Transmission system The transmission system is driven by a high-power motor controlled by a computer. After one-stage gear reduction, 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.

        4. Computer control system The computer control system uses a microprocessor. The hardware configuration consists of a main board, digital key board, optical isolation board, power board, stepper motor power driver board, etc.