`Method for integrally manufacturing hanging ring and infusion bag and bottle blank injection mold used in method

Abstract

The invention aims to provide a method for integrally manufacturing a hanging ring and an infusion bag and a bottle blank injection mold used in the method. The manufacturing method comprises the following steps of (a) injection-molding of a bottle blank, namely performing injection-molding on an infusion bottle (bag) blank with a hanging ring by one step by using a hanging ring integral-injection mold; (b) pre-blowing molding, namely performing temperature regulation shaping and primary blow-molding on a bottle body of the injection-molded bottle blank, and bending the hanging ring at a certain angle; (c) blow-molding, performing secondary blow-molding on the bottle blank, and simultaneously bending the hanging ring into a formed sunken groove; (d) de-molding. According to the method and the injection mold, the hanging ring is directly injection-molded on the bottle blank, and the hanging ring and the bottle blank are integrally injection-stretching-blow molded, so that the hanging ring and the infusion bag are integrally molded, a production process is simple, and comprises few procedures, the production pollution is effectively avoided, and the production efficiency is improved; a hanging ring mold is eliminated, so that the mold input is low, the welding is not required, production sites are reduced, and the labor intensity and the manufacturing cost are reduced.

Description

technical field [0001] The invention relates to an infusion bag, in particular to a method for manufacturing the integration of a suspension ring and an infusion bag and a used preform injection mold. Background technique [0002] At present, there are many kinds of plastic containers used to hold injections of large and small volumes on the market, all of which are made of pure PP or PP and other elastomers with a certain process. Infusion products must be hung upside down for clinical use. The domestic market currently uses The method is to weld the independent suspension ring on the bottom of the infusion bottle (bag) after the infusion bottle (bag) is made, which is two processes; and the suspension ring and the bottle (bag) are molded on different molds respectively, and different structures are required. Mold, which increases the cost of the mold, increases the area occupied by the production plant, and greatly increases the labor loss, and the production process is re...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of plastic containers used to hold injections of large and small volumes on the market, all of which are made of pure PP or PP and other elastomers with a certain process. Infusion products must be hung upside down for clinical use. The domestic market currently uses The method is to weld the independent suspension ring on the bottom of the infusion bottle (bag) after the infusion bottle (bag) is made, which is two processes; and the suspension ring and the bottle (bag) are molded on different molds respectively, and different structures are required. Mold, which increases the cost of the mold, increases the area occupied by the production plant, and greatly increases the labor loss, and the production process is relatively complicated. The welding process is adopted, and the production process is many, which increases the production man-hours, the production efficiency is low, and it is easy to produce pollution.

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