Die for injecting and blowing plastic hollow container forming container by one-step method and single working-station, and application thereof

Abstract

The invention relates to a mould of moulded product for hollow container of injection molding and blow molding with one step method and simplex station, belonging to the technical field of plastic processing and comprising an injection molding mould and a blow molding mould, which is characterized in that the injection molding mould comprises a pair of right and left arranged moving mould and fixed mould in parallel, the opening and closing of the moving mould and the fixed mould are controlled by the first group of driving mechanism; at least a row of longitudinally arranged bottle mold cavities are located on the fixed mould, at least a row of longitudinally arranged mandrel rods with gas ports are fixed on the moving mould and corresponding one by one to the bottle mold cavity arranged on the fixed mould; one blowing mould component is arranged on each row of mandrel rod, each blowing mould component comprises two templets and arranged separately on the front side and the back side of the mandrel rod, at least a row of finished mould orifices are arranged on the inner side of each templet and corresponding one by one to every mandrel rod, the opening and closing of the two templets are controlled by the third driving mechanism. The mould of the invention has the advantages that the blow moulding in injection-moulded parison and hollow container can be truly realized on the same mould, meanwhile, the invention discloses also a method of production adopting the mould.

Description

Technical field [0001] The invention belongs to the technical field of plastic processing, and specifically relates to a special mold for blowing plastic hollow container molding products with a set of molds on an injection molding machine at one time, and is mainly applied to an ordinary injection molding machine. [0002] The invention also relates to plastic processing, using one-step single station and core fixation on an ordinary injection molding machine. The blow molding core and parison do not rotate or move during the blow molding process, and complete injection molding-blow molding plastic hollow at one time The method of container molding products is mainly used in the single-station and fixed core double-row one-step injection-blowing hollow container molding molds on ordinary injection molding machines. Background technique [0003] In the process of plastic blow molding hollow products, two processes are mainly used: "extrusion-blowing" and "injection-blowing". The ...

AI Technical Summary

Problems solved by technology

The three stations can run at the same time. The disadvantages are: the injection-blowing hollow container equipment is a special injection-blowing equipment, which has a long production and processing cycle, high cost, large equipment investment, complex process, difficult mold processing, and is not easy to master; Moving the rotary core, poor centering and shaping of the product parison, prone to quality problems such as uneven product wall thickness, high system configuration requirements, and poor adaptability

This method is difficult to control the production process, the mold structure is not compact, the positioning is poor, the neutrality is not good, and the product quality is not easy to guarantee

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