西班牙语TWO、 What does it mean to have pitting?
Fault 7: The bottle clamping line is obvious
Reasons: 1. The clamping pressure is not enough 2. The sealing time is too early 3. The mold problem 4. The size of the germ tube tooth mouth does not match the mold
Remedy: 1. Increase the mold clamping pressure, adjust the mold clamping support rod angle (<5 degrees) 2. Move the mold clamping stroke switch position back 3. Repair the mold or check the mold assembly position, if the guide post is loose, or Whether the mold is not pressed tightly 4. Repair the matching position of the mold teeth
Fault 8: The bottom of the bottle or the bottleneck is rolled up, and the material accumulates
Reasons: 1. The delayed blowing time is too long. 2. One roll is good. 3. The temperature of the material accumulation is too low. 4. The air pressure for the action is unstable, which affects the descending speed of the stretching rod.
Remedy: 1. Shorten the delayed blowing time or reduce the descent speed of the stretching rod. 2. Reduce the air volume on one side of the reel. 3. Increase the heating temperature of the embryo tube. 4. Add an air storage tank to the action air source, or Shorten the air supply line
Fault 9: Stretching perforation at the bottom of the bottle
Reasons: 1. Insufficient temperature and no penetration 2. Delay stretch time is too long 3. Stretch ratio is too large 4. The bottom of the embryo tube is too thin 5. The stretch rod head is too sharp
Elimination methods: 1. Heat 2. Shorten the delay stretch time 3. Reduce the stretch ratio 4. Improve the design of the bottom of the embryo tube 5. Round the stretch head
Fault 10: Bottom blasting
Reasons: 1. The delayed blowing time is too short 2. The delayed mold opening time is too short 3. The temperature is too high 4. The exhaust valve does not work
Remedy: 1. Lengthen the delay blowing time or increase the descending speed of the stretch rod 2. Lengthen the delay opening time 3. Cool down 4. Clean the exhaust valve with gasoline
Fault 11: The bottom of the bottle is not full
Reasons: 1. The temperature of the bottom of the bottle is too high 2. The vent hole at the bottom of the mold is insufficient or uneven 3. The stretch rod does not reach the bottom 4. The design of the stretch rod head does not conform to the shape of the bottom of the embryo tube 5. The blowing pressure is insufficient 6 、The flow rate of the blowing valve is insufficient. 7. The bottom curve of the bottle is not well designed.
Remedy: 1. Reduce the temperature at the bottom of the heating zone or use a damp cloth to lower the temperature at the bottom of the embryo tube. 2. Increase the number of exhaust holes and make them evenly distributed. 3. Adjust the stretch rod to the bottom of the bottle 4. Replace the stretch rod head 5. Increase the blowing Air pressure 6. Clean the blow valve with gasoline 7. Increase the streamline design of the bottom curve of the bottle
Fault 12: uneven thickness
Reasons: 1. If the tooth part of the embryo tube is in a certain position relative to the embryo tube, it is the cause of uneven thickness of the embryo tube. 2. If the mold clamping line is in a certain position relative to the mold clamping line, it is a mold exhaust problem. 3. The embryo tube is not heated. Uniform 4. Poor design at the bottom of the mold
Elimination methods: 1. Improve the thickness of the embryo tube 2. Improve the vent at the bottom of the mold 3. Improve the heating conditions 4. Improve the bottom design
Reasons: 1. The clamping pressure is not enough 2. The sealing time is too early 3. The mold problem 4. The size of the germ tube tooth mouth does not match the mold
Remedy: 1. Increase the mold clamping pressure, adjust the mold clamping support rod angle (<5 degrees) 2. Move the mold clamping stroke switch position back 3. Repair the mold or check the mold assembly position, if the guide post is loose, or Whether the mold is not pressed tightly 4. Repair the matching position of the mold teeth
Fault 8: The bottom of the bottle or the bottleneck is rolled up, and the material accumulates
Reasons: 1. The delayed blowing time is too long. 2. One roll is good. 3. The temperature of the material accumulation is too low. 4. The air pressure for the action is unstable, which affects the descending speed of the stretching rod.
Remedy: 1. Shorten the delayed blowing time or reduce the descent speed of the stretching rod. 2. Reduce the air volume on one side of the reel. 3. Increase the heating temperature of the embryo tube. 4. Add an air storage tank to the action air source, or Shorten the air supply line
Fault 9: Stretching perforation at the bottom of the bottle
Reasons: 1. Insufficient temperature and no penetration 2. Delay stretch time is too long 3. Stretch ratio is too large 4. The bottom of the embryo tube is too thin 5. The stretch rod head is too sharp
Elimination methods: 1. Heat 2. Shorten the delay stretch time 3. Reduce the stretch ratio 4. Improve the design of the bottom of the embryo tube 5. Round the stretch head
Fault 10: Bottom blasting
Reasons: 1. The delayed blowing time is too short 2. The delayed mold opening time is too short 3. The temperature is too high 4. The exhaust valve does not work
Remedy: 1. Lengthen the delay blowing time or increase the descending speed of the stretch rod 2. Lengthen the delay opening time 3. Cool down 4. Clean the exhaust valve with gasoline
Fault 11: The bottom of the bottle is not full
Reasons: 1. The temperature of the bottom of the bottle is too high 2. The vent hole at the bottom of the mold is insufficient or uneven 3. The stretch rod does not reach the bottom 4. The design of the stretch rod head does not conform to the shape of the bottom of the embryo tube 5. The blowing pressure is insufficient 6 、The flow rate of the blowing valve is insufficient. 7. The bottom curve of the bottle is not well designed.
Remedy: 1. Reduce the temperature at the bottom of the heating zone or use a damp cloth to lower the temperature at the bottom of the embryo tube. 2. Increase the number of exhaust holes and make them evenly distributed. 3. Adjust the stretch rod to the bottom of the bottle 4. Replace the stretch rod head 5. Increase the blowing Air pressure 6. Clean the blow valve with gasoline 7. Increase the streamline design of the bottom curve of the bottle
Fault 12: uneven thickness
Reasons: 1. If the tooth part of the embryo tube is in a certain position relative to the embryo tube, it is the cause of uneven thickness of the embryo tube. 2. If the mold clamping line is in a certain position relative to the mold clamping line, it is a mold exhaust problem. 3. The embryo tube is not heated. Uniform 4. Poor design at the bottom of the mold
Elimination methods: 1. Improve the thickness of the embryo tube 2. Improve the vent at the bottom of the mold 3. Improve the heating conditions 4. Improve the bottom design
