The pre-coating laminator is a special device that combines printed matter with pre-coated plastic. Compared with the coating type laminating machine, the biggest feature is that there is no coating and drying part, so the laminating machine has compact structure, small volume, low cost, simple operation and good product quality stability.
        Pre-coated laminating machine consists of pre-coated plastic film unwinding, automatic print input, hot-pressing area compounding, automatic winding, four main parts, as well as mechanical transmission, pre-coated plastic film flattening, vertical and horizontal slitting, computer control system And other auxiliary devices.
        1. The automatic conveying mechanism of the input part of the printed matter can ensure that the printed matter does not overlap during the transmission and enters the composite part equidistantly. Generally, the pneumatic or frictional method is used for control, and the conveying is accurate and high precision. When the composite printing medium is small, the same can be used. Meet the above requirements.
        2. The composite part comprises a composite roll set and a calender roll set. The composite roller set consists of a silicone heated pressure roller pressure roller. The hot pressure roller is a hollow roller with a heating device inside, the surface is forged with hard chrome, and is polished and refined; the temperature of the hot roller is tracked by the sensor and the computer is corrected at any time; the adjustment of the composite pressure is performed by an eccentric cam mechanism, pressure Can be adjusted steplessly. The calender roll set is basically the same as the composite roll set, that is, the chrome plated pressure roll is composed of a silicone pressure roll, but there is no heating device. The main function of the calender roll group is: after the pre-coated plastic film is combined with the printed matter by the composite roll set, the surface brightness is not high, and then the second step of the calender roll group, the surface brightness and the bond strength are greatly improved.
        3. Transmission system The transmission system is driven by a computer-controlled high-power motor. After the first-stage gear is decelerated, it is driven by a three-stage chain to drive the movement of the paper feeding mechanism and the rotation of the composite part and the silicone pressure roller of the calendering mechanism. The pressure roller set maintains the proper working pressure under the pressure of the stepless adjustment.

        4. Computer Control System The computer control system uses a microprocessor. The hardware configuration consists of a motherboard, a digital keypad, an optical isolation board, a power board, and a stepper motor power driver board.