CN207479565U - For the remodeling runner system on automobile fuel pump shell die casting - Google Patents

Abstract

The remodeling runner system that the utility model is related to be used on automobile fuel pump shell die casting, including sprue, the end of sprue connects an elongated cross gate, and the both sides of cross gate are respectively connected there are two gate part, and each gate part corresponds to a casting cavity, and feature is：Each gate part is single pouring gate structure, and runner system is respectively communicated with by four single cast gates and four casting cavities.This remodeling runner system, corresponding to the cast gate of each casting cavity structure is poured using single, compared to the existing structure using double cast gate, molten metal is avoided to enter in casting cavity by double cast gate, and form volume gas in casting medium position, this remodeling runner system is discharged conducive to gas, so as to considerably reduce bleb rate, and then improves casting quality.

Description

For the remodeling runner system on automobile fuel pump shell die casting

Technical field

The utility model belongs to automobile fuel pump shell casting technology field, more particularly to a kind of to be used for automobile fuel pump shell compression mod The remodeling runner system of tool.

Background technology

Existing automobile fuel pump shell Die Casting is with mold using four cavity configuration of a mould, i.e., there are four cast for processing on one secondary mold Part cavity a, in this way, die casting can produce four automobile fuel pump shells.Corresponding to the casting die of four chamber of a mould, existing running channel System (referring to Fig. 3 and Fig. 4) is by sprue 1, the elongated cross gate 2 connected with sprue end, in the both sides of cross gate Two gate parts 3 are each provided with, each gate part corresponds to a casting cavity.Present cast gate position double cast gate structure, i.e., it is golden Belong to liquid to fill into casting cavity by two cast gate 3-1 simultaneously.

The runner system of existing double cast gate can realize the Fast Filling of molten metal, but be prone to volume gas phenomenon, be unfavorable for The discharge of gas, the porosity for leading to casting is higher, reduces casting quality.

Invention content

The utility model provides a kind of discharged convenient for gas, so as to big to solve technical problem present in known technology Amplitude reduction bleb rate, and then improve the remodeling runner system being used on automobile fuel pump shell die casting of casting quality.

The utility model is adopted the technical scheme that solve technical problem present in known technology：

For the remodeling runner system on automobile fuel pump shell die casting, including sprue, the end connection one of sprue Elongated cross gate, the both sides of cross gate are respectively connected there are two gate part, and each gate part corresponds to a casting cavity, and feature exists In：Each gate part is single pouring gate structure, and runner system is respectively communicated with by four single cast gates and four casting cavities.

The utility model has the advantages and positive effects of：

This remodeling runner system pours structure, compared to existing use corresponding to the cast gate of each casting cavity using single The structure of double cast gate avoids molten metal and is entered in casting cavity by double cast gate, and forms volume gas in casting medium position, This remodeling runner system is discharged conducive to gas, so as to considerably reduce bleb rate, and then improves casting quality.

Description of the drawings

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is the partial enlarged view of Fig. 1；

Fig. 3 is the structure diagram of existing runner system；

Fig. 4 is the partial enlarged view of Fig. 3.

In figure：1st, sprue；2nd, cross gate；3rd, gate part；3-1, cast gate.

Specific embodiment

For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates Detailed description are as follows for attached drawing：

Fig. 1-2 is referred to, for the remodeling runner system on automobile fuel pump shell die casting, including sprue 1, sprue End connect an elongated cross gate 2, respectively there are two gate part 3, each gate part corresponds to a casting for connection for the both sides of cross gate Part cavity.Its inventive point is：Each gate part is single pouring gate structure, and runner system passes through four single cast gate 3-1 and four A casting cavity is respectively communicated with.

This remodeling runner system, by changing corresponding with casting cavity gate part structure, by single cast gate to casting type Intracavitary fills molten metal, and the structure of single cast gate avoids the generation of volume gas phenomenon, conducive to the discharge of gas, so as to significantly drop The porosity of low casting.

Claims (1)

1. for the remodeling runner system on automobile fuel pump shell die casting, including sprue, the end connection one of sprue is logical Long cross gate, the both sides of cross gate are respectively connected there are two gate part, and each gate part corresponds to a casting cavity, and feature exists In：Each gate part is single pouring gate structure, and runner system is respectively communicated with by four single cast gates and four casting cavities.