The pre-coating laminating machine consists of four main parts: pre-coating plastic film unwinding, automatic printing input, hot-pressing zone 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.
        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. The pneumatic or friction method is generally used to achieve control. The conveyance is accurate, the precision is high, and the composite size is small. The printed matter can also meet the above requirements.
        2. The computer control system of the pre-coating laminator adopts a microprocessor, and the hardware configuration is composed of a main board, a digital key board, an optical isolation board, a power board, and a stepper motor power driver board.
        3. 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 pressure 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.

        4. The transmission system of the pre-coating laminating machine 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 feeding mechanism and the composite part and the silicone of the calendering mechanism. The rotation of the pressure roller. The pressure roller group maintains a suitable working pressure under the action of steplessly adjusted pressure.