Solutions to blow molding product processing failures

Release date： 2018-01-23 Author： Click：

Usually, several problems are prone to occur during the blowing process of blow-molded product processing. The bottle is blown, the bottom is aggregated, the bottom is not correct, the bottle body is thin, the bottle is white, etc. How to distinguish whether it is a blowing problem or a bottle embryo problem? Kunshan blow molding manufacturers suggest that it can be analyzed from different conditions on the blown bottle

First, the reasons for the broken bottle:

1. The embryo tube is not heated enough, and it is not baked completely;

2. The stretching rod is not pulled in place (to the end);

3. The speed of the stretching rod is too slow;

4. The temperature protection is turned on, but the upper and lower temperature limits are set too high.

Solutions to blow molding product processing failures:

1. Increase the voltage with the same output. The output is reduced when the voltage remains unchanged, that is, the time for the second blow is lengthened.

2. Exhaust after the mold is closed, push the stretch rod to the bottom of the mold by hand to contact with the bottom of the mold, and tighten the limit nut. (Only limited to mechanical limit cylinder adjustment).

3. Adjust the throttle valve on the stretching cylinder to a larger size.

4. Lower the lower limit temperature. Generally, the PET preform is set to 85~95 degrees, and the upper limit can be set to 125~130 degrees.

中空吹塑

URL of this article： http://www.fulongks.com/en/news/394.html

关键词：苏州吹塑加工,吹塑产品加工,吹塑加工厂家

Previous： Misunderstandings and solutions in the development of hollow blow molding machines
Next： Brief introduction to the viscoelastic principle of hollow blow molding

National Consulting Hotline