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Explain 9 faults of vacuum laminator in detail

Published:

2022-11-23 15:18

The following is the analysis of 9 faults of vacuum laminator:

 

1. After the cover is closed, the upper and lower chambers cannot be vacuumized. The upper and lower chamber vacuum pumps do not operate. Find out the causes and make them operate. If this situation is found, open the upper cover and take out the components in the shortest time, otherwise large bubbles will be caused in the components, and the scrapped vacuum valves will not be opened

2. After the cover is closed, the upper chamber is vacuumized and the lower chamber is not vacuumized. The lower chamber vacuum pump is not running and the vacuum pump is not running. If this situation is found, open the upper cover and take out the components in the shortest time, otherwise large area of bubbles will result in the components being scrapped and the cover is not closed in place. Check whether the limit switch is normal. The lower chamber vacuum valve is not opened and the vacuum valve is not opened

3. After the cover is closed, the lower chamber is vacuumized. The upper chamber cannot be vacuumized. The rubber skin is broken. Replace the rubber skin. In this case, open the upper cover and take out the components in the shortest time. Otherwise, a large area of bubbles will be caused in the components, resulting in scrapping of the upper chamber vacuum valve. The vacuum valve is not opened. The vacuum valve's strip frame is not pressed tightly and retightened

4. During lamination, the upper chamber does not inflate. The upper chamber inflate solenoid valve cannot be started for inspection and maintenance. Turn to manual operation to inflate it. If it cannot be checked, bubbles will be generated inside the component and the vacuum valve of the upper chamber with the back membrane folded is not started normally or closed tightly. Repair or replace the valve

5. The lower chamber cannot be inflated during lamination. The lower chamber inflation solenoid valve cannot be started for inspection and maintenance. Turn to manual operation to inflate it. If the upper cover cannot be opened, or

Broken blanket caused by opening Lower chamber inflation/lower chamber vacuum switch damaged Replace the switch

6. When the vacuum degree is reduced during laminating, the vacuum pump belt is too loose or the oil is too little. Check and repair it and switch to manual operation to make it meet the specified requirements; The sealing ring of the lower chamber vacuum valve may be damaged, which may cause bubbles in the module. Replace the sealing ring

7. The deviation between the set temperature and the actual temperature is too large. The thermocouple is damaged and replaced for temperature compensation, which may cause the phenomenon of EVA not melting. P, I, D, T parameters are set improperly and parameters are changed

8. No discharge under the automatic state of the teflon cloth. The teflon cloth sensor is damaged. The sensor can be replaced manually or manually pulled out directly. There is no significant impact on the components in a short time. The poor contact of the automatic discharge relay can be repaired

9. The vacuum pump has been emitting white smoke during operation. The circulating water is abnormal or has not been opened for inspection and has been shut down for normal maintenance before reuse, which may cause the vacuum degree to fail to meet the set requirements. Bubbles appear inside the components. The vacuum pump oil is too little or too dirty. Add or replace the vacuum pipe. The sealing is not tight. Check and use silica gel for sealing. The old photos cannot tell the secrets. Common failures of the laminator during the late Ming and early Qing Cultural Revolution Causes, solutions, and impacts on components

More information: http://www.szvstar.cn

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