Blow molding equipment for producing high-precision plastic barrels

Abstract

The invention discloses blow molding equipment for producing a high-precision plastic bucket, and relates to the field of plastic bucket production, the blow molding equipment comprises a bottom plate, a top plate, two molds and a blow molding mechanism, and further comprises a rotation driving mechanism, a cooling mechanism and an opening and closing mechanism, the two molds are symmetrically arranged above the bottom plate and slidably arranged on the bottom plate through the opening and closing mechanism, and the two molds are arranged on the bottom plate through the opening and closing mechanism; semicircular openings are formed in the upper ends of the two molds, supporting plates are fixedly connected to the left side and the right side of the upper end of the bottom plate, and the top plate is transversely arranged above the two supporting plates and can ascend and descend. The blow molding mechanism is arranged above the top plate, and the lower end of a first air blowing pipe in the blow molding mechanism is fixedly connected with an air blowing head. According to the plastic barrel blow molding device, uniform inflation blow molding can be conducted on plastic parisons to be subjected to blow molding, the side wall difference after blow molding of the plastic parisons is reduced, the quality of finished plastic barrels is improved, the finished plastic barrels can be conveniently separated from the two molds, and people can conveniently use the plastic barrel blow molding device.

Description

technical field [0001] The invention belongs to the technical field of plastic barrel production, in particular to blow molding equipment for producing high-precision plastic barrels. Background technique [0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular parison obtained by extrusion or injection molding of thermoplastic resin is placed in the split mold in the state of instant heat softening, and immediately after the mold is closed. Compressed air is passed into the billet to make the plastic billet inflate and cling to the inner wall of the mold. After cooling and demoulding, various hollow products are obtained. People usually use blow molding devices to produce plastic barrels. [0003] In the prior art, when using blow molding equipment to blow mold plastic parisons, generally the blowing pipe is directly inserted into the mold to blow mold the plastic parison, and during the blow molding process, t...

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Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a blow molding equipment for producing high-precision plastic barrels, which effectively solves the problem of generally Directly insert the blowing pipe into the mold to blow mold the plastic parison, while during the blow molding process, the blowing pipe is stationary and blows air directly from top to bottom, which may easily cause the inside of the plastic parison to be blown. The air pressure is not balanced, which leads to the inconsistent thickness of the side wall of the plastic barrel after molding, which affects the quality of the finished plastic barrel

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