西班牙语Solutions to common problems of automatic bottle blowing machine blowing bottle
Automatic blow molding machine blow molding automatic operation, without manual operation, but the automatic blow molding machine will inevitably fail, share the common faults and solutions of the automatic blow molding machine
(1) The bottom forming is not full
Reasons: 1. The blowing pressure is not enough 2. The preform temperature is slightly lower when blowing
Solution:
1. Check whether the high-pressure filter on the side of the mold is unblocked, so as not to affect the high-pressure gas supply
2. Check the working condition of the road valve to ensure the precise positioning of air blowing 1 and air 2
3. Check the airflow control components of Blow 1 and Blow 2 to ensure the correct set value and the internal flow
4. Make sure that all the ventilation holes on the mold are not blocked
(1) The bottom forming is not full
Reasons: 1. The blowing pressure is not enough 2. The preform temperature is slightly lower when blowing
Solution:
1. Check whether the high-pressure filter on the side of the mold is unblocked, so as not to affect the high-pressure gas supply
2. Check the working condition of the road valve to ensure the precise positioning of air blowing 1 and air 2
3. Check the airflow control components of Blow 1 and Blow 2 to ensure the correct set value and the internal flow
4. Make sure that all the ventilation holes on the mold are not blocked
(2) Neck bend
Reasons: 1. Caused by mechanical operation, the neck part is too thick to cause deformation after closing the mold
Solution:
1. Optimize the clamping structure
2. The convex ring is clamped too tightly in the recess of the mold top plate, and the size of the preform must be fixed when it is still hot.
Reasons: 1. Caused by mechanical operation, the neck part is too thick to cause deformation after closing the mold
Solution:
1. Optimize the clamping structure
2. The convex ring is clamped too tightly in the recess of the mold top plate, and the size of the preform must be fixed when it is still hot.
(3) Bottle mouth expansion, blowing bottle out of gas
Reasons: 1. The surrounding temperature is too high 2. The airflow cooling effect of the oven is low
Solution:
1. Adjust the position of the cooling shift so that it can better protect the thread of the preform.
2. Optimize the design structure of the cooling plate
Reasons: 1. The surrounding temperature is too high 2. The airflow cooling effect of the oven is low
Solution:
1. Adjust the position of the cooling shift so that it can better protect the thread of the preform.
2. Optimize the design structure of the cooling plate
(4) The bottom line is blue
Reasons: 1. Blowing too high 2. Lack of stretching rod pressure
Solution:
1. Set the blowing time and speed
2. Check if the stretch rod is blocked
Reasons: 1. Blowing too high 2. Lack of stretching rod pressure
Solution:
1. Set the blowing time and speed
2. Check if the stretch rod is blocked
(5) The bottom is broken
Reasons: 1. The temperature at the bottom of the preform is too low 2. The position of the stretch rod is too high
Solution:
1. Adjust the heating temperature at the bottom of the preform
2. Adjust the position of the stretch rod reasonably
Reasons: 1. The temperature at the bottom of the preform is too low 2. The position of the stretch rod is too high
Solution:
1. Adjust the heating temperature at the bottom of the preform
2. Adjust the position of the stretch rod reasonably
(6) The threaded part of the bottle mouth is damaged
Reason: the threaded area has suffered undue stretching, and the surrounding high temperature makes the temperature of the preform threaded area too high
Solution:
1. Ensure that the adjustment of the conveyor arm is accurate
2. Precise positioning of the preform, while reducing the heating temperature of the threaded area, and optimizing the structural design
Reason: the threaded area has suffered undue stretching, and the surrounding high temperature makes the temperature of the preform threaded area too high
Solution:
1. Ensure that the adjustment of the conveyor arm is accurate
2. Precise positioning of the preform, while reducing the heating temperature of the threaded area, and optimizing the structural design
(7) The liquid level drops too much
Reason: After the pet container is filled, the solution drops and the blowing temperature is too high, forming pearlescence
Solution: Adjust the temperature of the heating furnace to avoid heating or cold starting.
Reason: After the pet container is filled, the solution drops and the blowing temperature is too high, forming pearlescence
Solution: Adjust the temperature of the heating furnace to avoid heating or cold starting.
(8) burst
Reasons: 1. The bottom of the bottle is too thin due to high temperature 2. The blowing time is too short
Solution:
1. Adjust the bottom temperature of the bottle
2. Lengthen the delay blowing time
Reasons: 1. The bottom of the bottle is too thin due to high temperature 2. The blowing time is too short
Solution:
1. Adjust the bottom temperature of the bottle
2. Lengthen the delay blowing time
（9）The parting line is flattened
Reason: During the blowing process, the gas cannot be discharged from the vent hole in time, and the thin layer of material forming the bottle wall blocks the vent hole
Solution:
1. Correctly adjust the mold gap
2. High-pressure air valve controls air flow
3. Improve the design structure
Reason: During the blowing process, the gas cannot be discharged from the vent hole in time, and the thin layer of material forming the bottle wall blocks the vent hole
Solution:
1. Correctly adjust the mold gap
2. High-pressure air valve controls air flow
3. Improve the design structure
(10) Bottom wrinkles
Reason: The external crimping and blowing pressure is not enough, and the stretching rod is too much to push the material down;
The internal wrinkles are generally overheated at the tip of the preform or the stretching pressure is delayed at the beginning
Solution:
1. Ensure that the blowing bottle is continuously consistent on the mold at the timing
2. Do not overheat the end of the preform
3. Make sure that the delay from the start of stretching to the start of blowing 1 is not too long.
Reason: The external crimping and blowing pressure is not enough, and the stretching rod is too much to push the material down;
The internal wrinkles are generally overheated at the tip of the preform or the stretching pressure is delayed at the beginning
Solution:
1. Ensure that the blowing bottle is continuously consistent on the mold at the timing
2. Do not overheat the end of the preform
3. Make sure that the delay from the start of stretching to the start of blowing 1 is not too long.
(11) Thermo flask
Reason: The bottle is overheated, causing recrystallization inside or outside the preform, causing bottle burst
Solution:
1. Stretching time is too long
2. Lower the position of the cooling plate
Reason: The bottle is overheated, causing recrystallization inside or outside the preform, causing bottle burst
Solution:
1. Stretching time is too long
2. Lower the position of the cooling plate
(12) Uneven section weight (overweight neck)
Reasons: 1. The stretching rod will gradually become cold when stretched from bottom to top, the material is very thin, and the cooling will be accelerated
Solution:
1. Adjust the position of the hot spot to solve the main body of the preform
2. Adjust the position of the cooling plate
Reasons: 1. The stretching rod will gradually become cold when stretched from bottom to top, the material is very thin, and the cooling will be accelerated
Solution:
1. Adjust the position of the hot spot to solve the main body of the preform
2. Adjust the position of the cooling plate
(13) Bottom eccentric
Reasons: 1. Conveying and aligning problems 2. The back door is not in agreement with the bottle
Solution:
1. Adjust the transportation and alignment of the preform mold
2. The tension rod pressure setting is too low
3. Blowing 1 pressure is too high and premature
4. The adjustment of the stretch rod cushion is inappropriate.
Reasons: 1. Conveying and aligning problems 2. The back door is not in agreement with the bottle
Solution:
1. Adjust the transportation and alignment of the preform mold
2. The tension rod pressure setting is too low
3. Blowing 1 pressure is too high and premature
4. The adjustment of the stretch rod cushion is inappropriate.
(14) Pearly-Foot Hair
Reason: The root cause is cold bottles. The direct result of stretching exceeding the natural stretching limit is actually the onlooker structure of the bottle being stretched torn, and the resulting tearing point turns into visible pearl after reflection.
Solution:
1. Make sure the bottom of the bottle is in the center
2. Reduce the speed of the bottle blowing machine
3. It is too late to blow into the air, and the stretch rod has been in contact with the preform for too long.
Reason: The root cause is cold bottles. The direct result of stretching exceeding the natural stretching limit is actually the onlooker structure of the bottle being stretched torn, and the resulting tearing point turns into visible pearl after reflection.
Solution:
1. Make sure the bottom of the bottle is in the center
2. Reduce the speed of the bottle blowing machine
3. It is too late to blow into the air, and the stretch rod has been in contact with the preform for too long.
(15) The bottom gap is too poor
Reason: Exceeding the natural stretch limit
Solution:
1. Strengthen heat dissipation to the bottom of the bottle
2. Heat and cool the whole preform, and move different temperatures from around the side
3. Ensure the normal circulation of mold cooling water
Reason: Exceeding the natural stretch limit
Solution:
1. Strengthen heat dissipation to the bottom of the bottle
2. Heat and cool the whole preform, and move different temperatures from around the side
3. Ensure the normal circulation of mold cooling water
