The film of the pre-coating film laminating machine is formed at one time, and the consumables used have been coated with glue. When the film is coated, the glue is melted by heating, and then the film is adhered to the printed matter by pressure. This kind of film coating equipment is cheap, simple to operate, and does not generate harmful gases during operation. It is a trend in the development of film coating. In today's society that is increasingly focusing on environmental protection, it is believed that this technology will one day replace the pre-coated pre-coated film and become The main laminating technology in the domestic printing industry.
        The pre-coating laminating machine is a special equipment that combines printed materials with pre-coated plastics. Compared with the instant coating laminator, the biggest feature is that there is no sizing and drying parts, so this type of laminator is compact in structure, small in size, low in cost, easy to operate, and has good product quality stability.
        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.
        1. The automatic conveying mechanism of the printed product input part of the pre-coated laminating machine can ensure that the printed products will not overlap during the transmission and enter the composite part at equal distances. Generally, pneumatic or frictional methods are used to achieve control. The conveying is accurate, the precision is high, and the composite size is small. 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 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. The transmission system of the pre-coating laminating machine is driven by a high-power motor controlled by a computer. After being decelerated by a primary gear, it is driven by a tertiary chain to drive the movement of the paper feeding mechanism and the silicone of the composite part and calendering mechanism. The rotation of the pressure roller. The pressure roller set maintains a suitable working pressure under the action of steplessly adjusted pressure.

        4. Pre-coating film laminator computer control system The computer control system uses 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.