Demoulding device for one-step plastic injection blowing hollow forming machine

Abstract

The invention relates to a demoulding device for a one-step plastic injection blowing hollow forming machine, which comprises a workbench, wherein, a rotating tower is installed on the workbench; a core rod is installed on the rotating tower; and the core rod is in contact with an inner wall of a bottle mouth of a formed plastic bottle. The demoulding device is characterized in that a fixing plate is installed on the side wall of the workbench; a demoulding oil cylinder is installed on the fixing plate; the demoulding oil cylinder is connected with a demoulding rack; a demoulding plate is installed on the demoulding rack; the demoulding plate is matched with a neck of the plastic bottle; an overturn oil cylinder is installed under the demoulding rack; a piston rod of the overturn oil cylinder is connected with an overturn connecting rod; the overturn connecting rod drives the demoulding plate to rotate to lead the plastic bottle to enter one end of a conveyer belt; baffle plates are installed on both sides of the conveyer belt; and the other end of the conveyer belt is connected with the next working procedure. The demoulding device adopts the scheme that the demoulding oil cylinder is installed on the side wall of the workbench, so that a transmission rod connected between the demoulding oil cylinder and the demoulding rack is shortened, and the demoulding is stable; in addition, an overturn device adopts the oil cylinder to perform overturn, so that the action is smooth and steady, human participation is not needed during the production process, manual secondary pollution is obviated, the plastic bottle enters a filling production line directly, and the production automation degree of products in industries such as food industry, pharmaceuticals industry and the likecan be improved.

Description

technical field [0001] The invention relates to a demoulding device for a one-step plastic injection blow molding machine, belonging to the field of plastic machinery. Background technique [0002] Using plastic (mainly referring to PE, PP, PC) as raw material, it is processed into hollow containers (plastic bottles) by injection blowing, such as medicine bottles, cosmetic bottles and food bottles, etc., and can be applied to a one-step automatic plastic injection blow molding machine The machine has two parts: injection molding and blow molding, and the injection blow mold is installed on the same worktable, which is divided into three stations: injection molding, blow molding and demoulding. A triangular turret is installed on the workbench. Mandrels are installed on the three sides respectively, and the mandrels cooperate with the injection mold to make plastic injection molded into preforms. The hot preforms are driven by the turret to rotate 120° into the blow molding s...

AI Technical Summary

Problems solved by technology

The demoulding oil cylinder described in the prior art is directly fixed directly below the working platform with screws, and the demoulding oil cylinder is far away from the stripping plate, so that the length of the transmission guide rod connecting the stripping plate to the stripping cylinder is long, resulting in unstable demoulding action and simultaneous stripping. The installation of the mold oil cylinder under the working platform still has troubles in installation, inconvenient maintenance, time-consuming and labor-intensive

On the other hand, the flipping device in the prior art uses an air motor to directly realize the flipping action. The stability of the air motor is poor, which often causes the plastic bottle to fly out of the stripping plate during the flipping action, which is not conducive to the plastic bottle entering the next process.

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