The automatic blow molding machine blows automatically without manual operation, but the automatic blow molding machine will inevitably fail. The editor will share the common faults and solutions of the automatic blow molding machine based on the common problems of the market customer automatic blow molding machine. , For your reference. 1. Reasons for insufficient bottom molding: 1. Insufficient blowing pressure 2. 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 operation of the road valve In order to ensure the precise positioning of blow 1 and blow 2 3. Check the air flow control components of blow 1 and blow 2 to ensure the correct setting and the internal flow 4. Make sure that all the ventilation holes on the mold are not blocked 2. Causes of neck bending: 1. Mechanical operation, too thick material on the neck causes deformation after closing the mold. Solutions: 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 It must be fixed when it is still hot. 3. Reasons for bottle mouth expansion and blowing out of gas: 1. The surrounding temperature is too high. 2. The solution to the bottom of the airflow cooling effect of the oven: 1. Adjust the position of the cooling shift so that it can strengthen the thread of the preform. protection. 2. Optimize the design of the cooling plate 4. Reasons for the bottom line to be blue: 1. Blowing too high 2. The stretching rod pressure is insufficient. Solutions: 1. Set the blowing time and speed 2. Check whether the stretching rod is blocked. 5. The bottom is damaged. Reasons: 1. The bottom temperature of the preform is too low. 2. The position of the stretch rod is too high. Solutions: 1. Adjust the heating temperature at the bottom of the preform 2. Adjust the position of the stretch rod reasonably. 6. Reasons for damage to the thread of the bottle mouth: thread The area suffers from undesirable stretching, and the surrounding high temperature makes the temperature of the preform thread area too high. Solutions: 1. Ensure that the conveying arm is adjusted accurately and accurately 2. Position the preform accurately, while reducing the heating temperature of the thread area, and optimize the structure design 7. Reasons for excessive liquid level drop: After the pet container is filled, the solution drops, the blowing temperature is too high, and the pearlescent phenomenon is formed. Solution: Adjust the temperature of the heating furnace to avoid heating or cold starting. 8. Reasons for bursting: 1. The bottom of the bottle is too thin due to high temperature. 2. The blowing time is too short. Solutions: 1. Adjust the temperature of the bottom of the bottle. 2. Lengthen the delay blowing time. During the process, the gas cannot be discharged from the exhaust hole in time, and the thin layer of material forming the bottle wall blocks the exhaust hole. Solutions: 1. Correctly adjust the mold gap 2. High pressure air valve to control the air flow 3. Improve the design structure 10. The cause of bottom wrinkles: The external wrinkle blowing pressure 1 is not enough, and the stretching rod is too much to push the material down; internal wrinkles are generally overheated at the head of the preform or the stretching pressure is delayed at the beginning. Solution: 1. Make sure that the blowing bottle 1 is consistent on the mold at the timing 2. Do not overheat the end of the preform. 3. Make sure that the delay is not too long from the beginning of the stretch to the time before the blow 1 enters. 11. The reason for the hot bottle: the bottle is overheated, causing the inside or outside of the preform to recrystallize, causing the bottle to burst. Solutions: 1. Excessive stretching time 2. Lower the position of the cooling plate 12. Uneven section weight (over neck) Heavy) Reasons: 1. The stretch rod is stretched downward and gradually becomes colder, the material is thin, and the cooling is accelerated. Solutions: 1. Adjust the hot spot position to solve the preform body 2. Adjust the cooling plate position 14. The cause of the bottom eccentricity :1. Conveying and aligning problems 2. The back door part is not concentric with the bottle. Solutions: 1. Adjust the conveying and aligning of the preform mold. 2. The tension rod pressure setting is too low. 3. The blowing pressure 1 is too high and too early. 4 , The adjustment of the stretch rod cushion is inappropriate. 15, pearlescent-foot hair Reason: The root cause is cold bottle. The direct result of stretching beyond 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 that the bottom of the bottle is in the center. 2. Reduce the speed of the bottle blowing machine. 3. Blowing 1 is too late to enter the air, and the stretch rod has been in contact with the preform for too long. 16. The reason for the over-tolerance of the bottom gap: Exceeding the natural stretch limit. Solutions: 1. Strengthen the heat dissipation of the bottom of the bottle. 2. Heat and cool the whole preform, and raise different temperatures from the sides 3 3. Ensure the normal circulation of mold cooling water Related recommendation: What should I do if the bottom of the bottle is not flat and the bottom of the bottle is uneven? Expert answers! The bottom of the bottle blown out by the bottle blowing machine is not formed. The reason and the solution of the bottom of the bottle of the bottle blowing machine are the reasons and the solution. The maintenance master shares the solution of the bottle burst when the bottle is blown by the automatic bottle blowing machine
. The reason and adjustment of the bottom of the bottle of the automatic bottle blowing machine Method
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