1. Feeder
  • Gob temperature too high
 
1. Feeder
  • Adjust gob temperature

 
2. Machine Setup and Operation
  • Mold is running too hot, causing the container to be pulled to one side
  • Machine speed too high
  • Blow head not setting properly over the molds
  • Take-out operating too fast and swinging bottle
  • Incorrect counterblow pressure and time of application
  • Incorrect blank and/or blow mold cycle
  • Plunger contact time too long
  • Blank contact time too short
  • Insufficient reheat and mold contact time
  • Blow head exhaust holes too small
  • Take-out set too low
  • Neck rings not relieving correctly
  • Bottle blowing time too short
  • Take-out tongs are out of line
  • Neck ring is running hot

 
2. Machine Setup and Operation
  • Increase the cooling wind
  • Reduce the machine speed
  • Adjust blow head setting on the mold
  • Adjust the take-out height and adjust the cushioning
  • Increase the counterblow time and/or pressure
  • Adjust blank and mold cycle
  • Shorten plunger contact time
  • Increase blank contact time
  • Increase reheat and mold contact time
  • Change to a larger exhaust hole on blow head
  • Adjust the take-out setting
  • Correct the opening of the neck ring
  • Increase the bottle blowing time
  • Realign the take-out tongs
  • Increase the cooling to the neck ring

 
3. Mold Equipment
  • Incorrect plunger design (blow and blow)
  • Blow head not deep enough
  • Take-out tongs out of shape
3. Mold Equipment
  • Correct plunger design
  • Check the depth of the blow head cavity and correct if necessary
  • Replace the take-out tongs

 

Note: It can cause trouble on the filling line and should be corrected at once.