Horizontal core loosing mechanism for side snap-board of inner oil inlet pipe on upper cover of automobile fuel oil pump assembly

Abstract

The invention discloses a horizontal core-loosing mechanism for a side snap-board of an inner oil inlet pipe on the upper cover of an automobile fuel oil pump assembly. The horizontal core-loosing mechanism comprises a movable mold push plate, a movable mold core, a core-loosing rod and a core-loosing actuating unit, wherein the movable mold core is in linkage with and fixed on the movable mold push plate and is provided with an inner oil inlet pipe molding part, a side of the lower end of the inner oil inlet pipe molding part is provided with a side snap-board molding groove, the head of the core-loosing rod is just opposite to a central position at the side snap-board molding groove, and the core-loosing rod telescopically moves in the core-loosing actuating unit under driving to enter into or go out from the side snap-board molding groove. The invention has the following advantages: the side snap-board and the upper cover can be molded in one step during injection molding, so high production efficiency is obtained, and production cost is effectively reduced.

Description

technical field [0001] The invention relates to a molding device for auto parts, in particular to a flat core-pulling mechanism for a clamping plate on the side of an oil inlet inner pipe on the upper cover of an automobile fuel pump assembly. Background technique [0002] The function of the automobile fuel pump assembly is to pressurize the fuel stored in the fuel tank and send it to the fuel pipeline of the engine injector, so as to supply fuel to the automobile engine. Among them, the upper cover of the automobile fuel pump assembly is an important part of the automobile fuel pump assembly. Mechanisms such as column, its whole is a plastic product. Among them, in order to ensure the stability of the connection between the oil inlet inner pipe and the pipeline in the pump body of the automobile fuel pump assembly, the lower end edge of the oil inlet inner pipe on the upper cover of the existing automobile fuel pump assembly is protrudingly provided with a side clamping p...

AI Technical Summary

Problems solved by technology

[0003] However, the existing automotive fuel pump assembly upper cover is generally injection molded, and the opening direction of the clamping hole of the side clamping plate is inconsistent with the demoulding direction of the automotive fuel pump assembly upper cover, resulting in difficulty in demoulding, making the side clamping The card hole of the board cannot be integrally formed with the upper cover

Therefore, the clamping plate on the side of the oil inlet inner pipe on the upper cover of the existing automotive fuel pump assembly needs subsequent processing, and there is no way to injection molding at one time, resulting in low production efficiency and high production costs.

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