Degradable plastic bag continuous blow molding mold and use method

Abstract

The degradable plastic bag continuous blow molding mold comprises a limiting plate, positioning columns are fixedly connected to the two sides of the bottom of the limiting plate, a blow molding device is fixedly connected to the bottoms of the positioning columns, the top of the blow molding device communicates with an air guide hose, and the air guide hose communicates with an air outlet of the blow molding device. And the right end of the air guide hose communicates with an airflow collecting box, the plastic bag blow molding speed can be increased, and the right side of the top of the front face of the blow molding device communicates with a cold water flowing pipe. According to the continuous blow molding mold for the degradable plastic bag and the using method, the blow molding speed of the plastic bag can be increased, cold water flows after the plastic bag is formed and can take away part of residual impurities during plastic melting, internal parts can be supported when the lower mold base makes contact with the plastic bag, and the service life of the plastic bag is prolonged. And therefore, the situations that the plastic bag is broken and is adhered to other parts in the blow molding process are reduced, and the quality of the molded plastic bag is improved.

Description

technical field [0001] The invention relates to the technical field of plastic bags, in particular to a continuous blow-molding mold for degradable plastic bags and a method for using the same. Background technique [0002] Plastic bags are bags made of commonly used plastics such as polyethylene, polypropylene, polyester, nylon, etc. as the main raw materials. They are essential items in people's daily life and are often used to hold other items. Hollow blow molding is a rapidly developing plastic processing method. The plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc. The well-known blow molding objects include bottles, barrels, cans, boxes and all Containers for packaging food, beverages, cosmetics, medicines and daily necessities, but the impurities or dust adhered to the inside of the plastic bag during the blow molding process are easy to adhere to the plastic bag during blow molding, reducing the quality of the...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a continuous blow molding mold for degradable plastic bags and its use method, which solves the problem of impurities or dust adhering to the interior of the plastic bag during the blow molding process, which is easily separated from the blow molding process. Adhesion of the plastic bag reduces the quality of the plastic bag after molding, and when the air blow molding is too large, it is easy to cause the rupture of the plastic bag, resulting in the problem that the part of the plastic bag after the rupture is adhered to other parts

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