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Automatic Blow Molding Machine Blowing Process

 Automatic Blow Molding Machine Blowing Process

PET Preform→ Heating→Air Supply → Blowing → Checking → Packing →Stacking → Warehouse-in Inspection

  Automatic Blow Molding Machine Operation

Steps Description
Heating Turn on the heater to a constant temperature state and check equipment situation.
Air Supply Open air supply.  High pressure (2.6-3.0MPA), low pressure (1.0-1.2MPA). Employees turn on the low pressure and high pressure inlet switch and mechanical power switch to manual and semi-automatic. Test the machine to confirm whether the device operates normally. Temperature reaches to the set and check whether the ammeter is normal.
Blowing a. Take out the heated preform in turn. Put the first two pieces into the bottle mold and clamp. With both hands withdrawn, press the start button.

b. The bottle blowing action: mold closing → sealing → release rod → blowing → exhaust → opening → lifting rod → mold opening + stop procedure

c. Take out the blown bottle and check whether it is qualified. Then do the a step again.

Checking Check whether it is qualified, put the defective products in the waste bag and qualified products in the finished film bag. Place them neatly
Packing No mixed packing, classified and stacked. The film used for packaging must be free from damage, pollution, tightly sealed and neatly stacked.
Warehouse-in Inspection Routine inspection, loading into the warehouse, preventing heavy pressure, avoiding falling and collision with hard objects. The storage place must be dry, ventilated, clean, neatly stacked. The storage time should not exceed half a year

  Automatic Blow Molding Machine Technical Parameter

  Hot filling Bottle

       Name Working Pressure(MPA) Delay Stretching (S) Blowing Time (S) Air Exhaust Time (S) Delay Opening Mould Time (S)
High Pressure Low Pressure First Blow Second Blow
280ml Juice Bottle

460ml Juice Bottle

490ml Square Tea Bottle

500ml Round Tea Bottle

2.5-3.0 1.0-1.2 1.2+/-0.2 7-9 2+/-0.2 0.0-0.4 0.0
1.25L Juice Bottle

1.5L Juice Bottle

2.5-3.0 1.0-1.2 1.8+/-0.2 7-9 2+/-0.2 0.0-0.4 0.0

  Ordinary PET Bottle

Name Working Pressure(MPA) Delay Clamping(S) Blowing Time(S) Air Exhaust Time(S) Delay Opening Mould Time(S)
330ml Round Bottle

350ml Square Bottle

560ml Round Bottle

590ml Square Bottle

1.0-1.2 1.2+/-0.2 2.5+/-0.5 0.0-0.4 0.0
1.25L Round Bottle

1.5L Round Bottle

1.0-1.2 1.2+/-0.2 4.5+/-0.5 0.0-0.4 0.0
1.25L Carbonated Bottle 1.0-1.2 1.2+/-0.2 4.5+/-0.5 0.0-0.4 0.0


3 thoughts on “Automatic Blow Molding Machine Blowing Process


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