The defects of the glass bottle cylinder (large mouth bottle part) are often caused by various reasons when using the blowing method to produce large mouth bottles on the line machine. Overall, there are several similarities or similarities between the defects of large mouth bottles and small mouth bottles.

Here are some explanations for common defects, their causes, and solutions, as well as any discrepancies with small mouth bottles.

1. Scissor print:

Scissor marks are obvious marks left on the bottle due to poor cutting. A material droplet often has two scissors marks, and the scissors marks on top remain at the bottom, affecting the appearance. The scissors marks below are left at the bottle mouth, often the source of cracks.

Reason:

⑴ Dropping temperature too low

⑵ The center of the scissors bracket is asymmetric

(3) Improper tightness of scissors intersection

The coolant spray of the scissors is too large or too small, and the lubrication is insufficient

(5) Blunt scissors

(6) Looseness between the scissors handle and the scissors blade

Solution:

(1) Properly grasp the temperature of the dripping material

(2) Align the center of the bracket

(3) Adjust the intersection tightness of the two scissors with a positive sign

(4) Control the amount of coolant used for scissors. Proper lubrication