What is the main structure of the pre-coating type laminating machine?
1. AUTOMATIC INPUT OF PRINTED MATTER
The automatic conveying mechanism can ensure that the printed matter does not overlap and enter the composite part equidistantly during transmission. Generally, pneumatic or frictional control is used to realize the control. The conveying is accurate and high-precision. It can also meet the above requirements when the printed matter is composited with a small format.
2. HOT PRESSING COMPOUND MECHANISM
The hot pressing composite mechanism includes a composite roller group and a calender roller group. The composite roller group is composed of heating pressure roller and silicone pressure roller. The hot pressure roller is a hollow roller with a heating device inside. The surface is forged with hard chromium, polished and finely ground. The temperature of the hot pressure roller is tracked and sampled by the sensor and corrected by the computer at any time. The compound pressure is adjusted by an eccentric cam mechanism. Can be steplessly adjusted. The calender roller set is basically the same as the composite roller set, that is, it consists 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 is compounded with the printed product through the composite roller group, the surface brightness is not high, and the surface brightness and bonding strength are greatly improved by the second extrusion of the calender roller group.
3. TRANSMISSION SYSTEM
The transmission system is driven by a computer-controlled high-power motor. After a one-stage gear reduction, a three-stage chain drive drives 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 group maintains proper working pressure under the pressure of stepless adjustment.
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