Solutions to processing failures of blow molding products

1、 Reasons for bottle blowing:
1. The embryo tube is not heated enough and not baked thoroughly;
2. The stretching rod is not pulled in place (to the bottom);
3. The speed of stretching rod is too slow;
4. The temperature protection is turned on, but the upper and lower temperature are set too high.
Solutions to processing failures of blow molding products:
1. Increase the voltage with the output unchanged. When the voltage is constant, the output is reduced, that is, the time of secondary air blowing is prolonged.
2. After the mold is closed, exhaust the air, push the drawing rod to the bottom of the mold and contact the bottom of the mold by hand, and tighten the limit nut. (Only limited to mechanical cylinder adjustment).
3. Adjust the throttle valve on the stretching cylinder to a larger size.
4. Lower the lower limit temperature, generally set the PET bottle embryo to 85~95 ℃, and the upper limit can be set to 125~130 ℃.