Analysis of common problems in coating machine

- Sep 01, 2016 -

Coating machine is a plastic film coated with adhesive, and the paper for the substrate printed by rubber roller and the heating roller pressure close together, one form of paper and plastic products. After printing coating machine, the plastic film surface with a thin layer of transparent, surface smooth and light, not only improves the print gloss and fastness, prolong the service life of printed products, while plastic film plays waterproof, wear resistance, folding resistance, chemical corrosion protection etc. effect.

1. coating machine does not start: the input wire is blocked, the power line is connected, the voltage is not enough.

2. temperature measurement is not accurate: thermocouple, temperature control instrument, whether the installation is not correct and damage.

3. working vacuum is not coming: gas path is blocked, hand valve or solenoid valve is not closed, vacuum pump motor belt loose, vacuum table damage.

4. the main power switch trip: heating box top input wire leakage, distribution box leakage, external wire on the equipment, motor leakage, etc..

5. suction film is not in place: vacuum is not enough, leakage, temperature is not enough, the film is too thin, the workpiece affixed to other materials, the concave depth of the workpiece more than the film pulled, the suction time is too short, the film did not pull up, the distance between the workpiece too close.

6., the surface of the workpiece is folded and not smooth or angle can not be wrapped: the film is not straightened, the quality of the film is not good, the workpiece grinding is not good, glue spray too much, the lower part of the touch plate is too low.

7. not to suction film downward pull up: solenoid valve or hand valve is open.

8. drama breaking phenomenon: the temperature is too high, heating time is too long, the film quality is not good, no heating.

automatic coating machine.jpg

Pulse air cleaning system for coating machine:


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