Polycarbonate pure bucket blow molding system

Abstract

The invention discloses a blow molding system for a polycarbonate purified water bucket. The blow molding system involves a mold, an extrusion molding part, a feeding cylinder, an air blowing cylinderand a bottom cup, wherein the feeding cylinder is arranged at the top of the mold; the coaxial air blowing cylinder is arranged inside the feeding cylinder, the lower end of the air blowing cylinderextends to the interior of the mold, and an openable sealing plate is arranged at the bottom of the air blowing cylinder; and the bottom cup matched with the air blowing cylinder is arranged at the bottom of the mold, a movable supporting rod is arranged at the bottom of the bottom cup, and a movable bottom mold plate matched with the bottom cup is arranged at the bottom of the bottom cup. According to the blow molding system for the polycarbonate purified water bucket, blow molding of the water bucket is carried out through a mode that a bottom blank is molded firstly, then a pipe blank is formed so that material waste caused by cutting off the head and the tail of the pipe blank in traditional extrusion blow molding can be reduced, and high-cost investment of two molding molds of injection molding and blow molding can be avoided; and the bottom blank and the pipe blank are formed inside a mold cavity, the process is simple, the occupied area is small, and preparation is efficient.

Description

technical field [0001] The invention relates to the technical field of bucket preparation, in particular to a polycarbonate pure bucket blow molding system. Background technique [0002] Polycarbonate pure water bucket is a container produced by blow molding process. Common blow molding processes include extrusion blow molding and injection blow molding. Among them, extrusion blow molding is to extrude molten resin to form a tube embryo, and then clamp the two half molds around the tube embryo, and then blow air or other pressurized fluid into the mold, and the tube embryo is inflated to fill the mold. The inside of the cavity, after cooling, is ejected from the mold to form a product. Injection blow molding melted resin is extruded and heated in an injection mold to form a parison with a bottom embryo and a tube embryo, and then the parison is sent into the mold, the parison is stretched, and then air or other pressurized fluid is blown to the Blow molding is carried out...

AI Technical Summary

Problems solved by technology

When the tube embryo formed in the extrusion blow molding process is put into the mold, in order to form the bottom embryo, the lower part needs to be cut off, resulting in material waste; injection blow molding requires two sets of molding molds for injection molding and blow molding, and the process is complicated and High input cost

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