Automobile engine induction manifold oil cylinder rollback preventing mechanism

Abstract

The invention discloses an automobile engine induction manifold oil cylinder rollback preventing mechanism which comprises an upper die, a lower die and a product, wherein a sliding block for formingthe outer side surface of the product is arranged on the upper surface of the lower die; a backing buckle is arranged on the outer side face of the product; the automobile engine induction manifold oil cylinder rollback preventing mechanism further comprises a core rod for forming the backing buckle; the core rod is positioned in the sliding block; a first oil cylinder is arranged on the sliding block; the piston rod of the first oil cylinder is connected with the core rod; and an oil cylinder core-pulling locking mechanism for carrying out mechanical locking on the core rod is arranged between the sliding block and the upper die. The invention provides the automobile engine induction manifold oil cylinder rollback preventing mechanism which is small in using space and low in cost.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to an anti-retraction mechanism for an intake manifold oil cylinder of an automobile engine. Background technique [0002] The lower casing of the automobile intake manifold is one of the important parts of the automobile engine. The lower casing of the automobile intake manifold is made through an injection mold. During the injection molding process, most of the glue is wrapped on the core. The injection pressure It will make the oil cylinder slide back, so it is necessary to design an anti-retraction mechanism for the oil cylinder. According to the prior art, the space in the mold is small, and the design of the oil cylinder is locked, so the mold needs to be enlarged, the space is large, and the cost is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above defects of the prior art, and provide an automobile e...

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Problems solved by technology

[0002] The lower casing of the automobile intake manifold is one of the important parts of the automobile engine. The lower casing of the automobile intake manifold is made through an injection mold. During the injection molding process, most of the glue is wrapped on the core. The injection pressure It will make the oil cylinder slide back, so it is necessary to design the anti-retraction mechanism of the oil cylinder. According to the existing technology, the space in the mold is small, and the design of the oil cylinder is locked, so the mold needs to be enlarged, the use space is large, and the cost is high

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