Solutions of common problems of PET blowing machine

October 27, 2022

Common trouble of PET Bottle Blowing Machine and solutions as following:

Fault 6: the bottom of the bottle is too thin

Reasons:

1. Start blowing early

2. Bottom temperature is too high

3. The bottom of the embryos tube is too thin

Solution:

1. Delay the time of start blowing

2. Reduce the temperature of bottom

3. Increase the bottom thickness of the embryo tube.

Fault 7: the clamping line of bottle is apparent

Reasons:

1.The clamping pressure is not enough

2. Sealing time is too early

3. Mold problem

4.The tooth size of embryonic tube doesn’t match the mold

Solution:

1.Increase the mold pressure, adjust the clamping rod angle (<5 degrees) 2. To move backward the switch position of clamping stroke

3. Repair the mold or check the mold assembly location,such as whether the guide column is loose, or whether the mold is unpressed

4. Maintain the mold cooperated with a mouth

Fault 8: the bottom or the neck of the bottle rolled up ,accumulate material.

Reasons:

1. The blowing time of delaying is too long

2. a volume, a good

3. The temperature of the place where material accumulates is too low

4. The pressure of the action is not stable, thus affecting the stretching rod dropping speed.

Solution:

1. Shorten the delay blowing time or reduce stretching rod dropping speed

2. Turn down the gas volume on one side of the bottle

3. Increase the heating temperature of embryo tube

4. Adding a gas storage tank to action air source or shorten the gas supply pipeline

Fault 9: The bottom of the bottle Stretching perforation

Reasons:

1. The temperature is not enough to penetration

2. The stretching time of delaying is too long

3. The stretching ratio is too large

4. The bottom of embryo tube is too thin

5. The head of stretching rod is too sharp

Solution:

1.Heating

2.Shorten the stretching time of delaying

3.Reduce the stretching ratio

4.Improve the design of the bottom embryonic tube

Round the stretching rod head

Fault 10: The blasting of the bottom

Reasons:

1.The blowing time of the delaying is too short

2.The opening mold time of delaying is too short

3.The temperature is too high

4.The exhaust valve doesn’t work

Solution:

1.Increase the blowing time of the delaying,or the dropping speed of the stretching rod

2.Increase the opening mold time of delaying

3.Cooling down

4.Clean the exhaust valve by gasoline

More question of PET Blowing Machine,welcome to contact:

whatsapp/wechat/facebook/mobile:+86 15355669963

www.bottleblow.com

The above is the Solutions of common problems of PET blowing machine we have listed for you. You can submit the following form to obtain more industry information we provide for you.

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