The pre-coating laminating machine is a special equipment for compounding the printed matter with the pre-coated plastic. Compared with the ready-to-coat laminator, its biggest feature is that there is no glue coating and drying part, so this type of laminator has compact structure, small volume, low cost, easy operation and good product quality stability.
The pre-coating laminating machine consists of four main parts: pre-coated plastic film unwinding, automatic input of printed matter, hot-pressing zone compounding, and automatic winding, as well as mechanical transmission, pre-coated plastic film flattening, vertical and horizontal slitting, and 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 compound part at an equal distance. Generally, pneumatic or friction methods are used to realize the control, with accurate conveying and high precision. When the compound format is small, the same can be used. meet the above requirements.
2. The composite part includes a composite roll group and a calender roll group. The composite roller group is composed of silicone heating pressure roller and pressure roller. The hot pressure roller is a hollow roller with a heating device inside, and the surface is forged with hard chrome, which is polished and finely ground; the temperature of the hot pressure roller is tracked and sampled by a sensor, and corrected by a computer at any time; Infinitely adjustable. The calender roll group is basically the same as the composite roll group, that is, it is composed of a chrome-plated pressure roll and a silicone pressure roll, but there is no heating device. The main function of the calendering roller group is: after the pre-coated plastic film and the printed matter are compounded by the compounding roller group, the surface brightness is not high.
3. Transmission system The transmission system is driven by a high-power motor controlled by a computer. After the first-stage gear deceleration, it drives the movement of the feeding mechanism and the rotation of the compound part and the silicone pressure roller of the calendering mechanism through the third-stage chain transmission. The pressure roller group maintains a suitable working pressure under the action of stepless adjustment.
4. Computer control system The computer control system adopts a microprocessor, and the hardware configuration consists of a main board, a digital key board, an optical isolation board, a power board, and a stepper motor power drive board.
