Double-station reciprocating rotary type injection stretch blow hollow forming machine

Abstract

The invention discloses a double-station reciprocating rotary type injection stretch blow hollow forming machine which comprises a host machine and a mould. The host machine comprises a machine frame, a worktable panel, an injecting system, an injection molding and mould locking system, a blow molding and mould closing system, and a stretching device; wherein, the worktable panel is horizontally fixed on the machine frame, the injecting system is horizontally arranged on the machine frame, the injection molding and mould locking system is vertical to the worktable panel, the blow molding and mould closing system is horizontally arranged on the worktable panel, and the stretching device is vertically arranged. The injection molding and mould locking system comprises an upper mould plate, a lower mould plate, a mould locking oil cylinder, a guide post, a rotary driving mechanism, a rotary disc and a core-pumping oil cylinder. The lower mould plate is connected with the upper mould plate by the guide post which vertically penetrates through the worktable panel, the mould locking oil cylinder is fixed below the worktable panel, the piston rod end of the mould locking oil cylinder is connected with the lower mould plate, the rotary disc is arranged at the lower end face of the upper mould plate, and the rotary driving mechanism which is arranged at the upper part of the upper mould plate is connected with the rotary disc in a rotating manner. The rotary disc is driven by the rotary driving mechanism to drive a mouth module I and a mouth module II to carry out reciprocating rotation at 180 degrees in an interval manner, so as to finish station exchanging between blank injection and stretching blow molding, thereby realizing that the two functions of blank injection and stretching blow molding can be finished at the same time.

Description

【Technical field】 [0001] The invention relates to an injection stretch blow plastic bottle manufacturing equipment, in particular to a double station reciprocating rotary injection stretch blow hollow molding machine. 【Background technique】 [0002] At present, the processing of one-step injection stretch-blow plastic hollow containers at home and abroad mostly adopts three-station or four-station injection-stretch-blow hollow molding machines. Processing and assembly precision requirements are high, which will inevitably increase the manufacturing cost of the host machine and the mold and the production cost of the product. The invention patent "two-station one-step rotary injection stretch-blow molding machine" with the authorized notification number CN2649318Y improves the traditional "three-station" and "four-station" injection-stretch-blow blow molding machines, and adopts a two-station The scheme basically overcomes the problems of high manufacturing cost of the host ...

AI Technical Summary

Problems solved by technology

However, the "two-station one-step rotary injection stretch blow molding machine" drives the moving plate of the mandrel to be placed between the upper fixed plate and the machine base, and the injection mold and blowing mold are placed on the machine base. Low, it will bring inconvenience to the operation, if the base is raised, the whole machine will inevitably become huge

In addition, this machine adopts wedge-in oil cylinder and wedge-in pad column or mechanical wedge block to lock the injection mold and blowing mold, not only the structure is more complicated, but also the operation process is more complicated.

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