The paper bag machine is a device that automatically absorbs, glues and forms, creasing, pastes the bottom, and outputs the printed sheet or laminated paper according to the required size, and completes the production of paper bags at one time. The paper bag machine may have problems of one kind or another in the process of bag making, and it is necessary to investigate the reasons and solve them in time. Next, I will tell you about the three major fault solutions of automatic paper bag mechanism bags.
1) The upper and lower films are prohibited.
The prohibition of upper and lower sheets refers to the question that the front and rear sides are not aligned when making bags
1. Reasons: (1) The thickness of the composite film is uneven, and there are lotus leaf edges; (2) The tension of the double floating rollers is too small; (3) Some rollers rotate unevenly.
2. Solution: (1) Check and adjust the relevant guide rollers (such as compensation rollers, deflection rollers, etc.). (2) Adjust the tension of the double-lift floating rollers.
2) The cover has spots and bubbles
Spots and bubbles on the cover means that the sealing surface is not flat
1. Causes: (1) The heat sealing knife or the heat sealing silicone pad is not flat. (2) When heat sealing is performed on a hygroscopic raw material structure such as a nylon film, the hygroscopic film absorbs moisture and bubbles are generated. (3) Lack of heat sealing pressure. (4) Use one-component adhesives, such as neoprene adhesives, when heat sealing bags. Hot covers are prone to spiky pits.
2. Solution: (1) Replace the adhesive. (2) Check or adjust the heat sealing knife and heat sealing silicone pad. (3) Properly store raw materials and semi-finished products to prevent them from absorbing moisture.
3) Scale error
1. Cause: Operational factors, such as improper tension control, lack of pressure setting of the rubber roller pressure cylinder, etc. Electric eye tracking is prohibited. Influence of processing speed of plastic composite film bag making. The bag-making mechanism has a big difference in the length-fixing system of the bag.
2. Solution: reduce the bag-making speed, and adjust the bag-making speed slowly. The pre-adjusted film feeding length (when adjusting the white bag) and the actual bag-making scale should be as accurate as possible. Check whether the compression degree of the pressure film ruler and the friction coefficient of the composite film are appropriate. Adjust the rubber roller pressure, cylinder pressure and tension of each part. Check to see if there is a cursor print question or distance question, and adjust it. Adjust the fixed length system.
