CN211218566U

CN211218566U - Exhaust end cone inner cavity evacuating sand core structure

Info

Publication number: CN211218566U
Application number: CN201922378271.1U
Authority: CN
Inventors: 陈杰; 高保哲
Original assignee: Nantong Haosheng Automobile Technology Co ltd
Current assignee: Nantong Haosheng Automobile Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-11
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to an exhaust end awl inner chamber evacuates psammitolite structure, belong to the casting equipment technical field, including the stationary mould and the movable mould matched with it, movable mould and stationary mould are fixed mounting on the shell core machine respectively, the movable mould and have all offered the die cavity in the stationary mould, install the evacuation piece in the die cavity, evacuation piece one end fixed mounting has the connecting plate, the connecting plate links to each other with the output of cylinder; the utility model discloses and erection joint board and cylinder and the cooperation of managing to find time the piece, guarantee the uniformity and the psammitolite intensity of psammitolite crust thickness, the sand volume for the psammitolite falls to 2.5Kg from 4.05Kg, practices thrift sand 38%, and has reduced the production of gas production volume and foundry goods defect, and the practicality is strong.

Description

Exhaust end cone inner cavity evacuating sand core structure

Technical Field

The utility model relates to a casting equipment technical field specifically is a psammitolite structure of managing to find time of exhaust end awl inner chamber.

Background

The sand core directly reflects the shape of the internal structure of the casting, and the quality of the sand core directly influences the internal structure of the casting and the generation of casting defects. Although the existing sand core is manufactured by adopting a shell core machine, because the exhaust end cone inner cavity mechanism is relatively large, the shell core machine is used for manufacturing the core, the strength of the sand core is influenced by the small incrustation thickness, or the incrustation thickness is thick and inconsistent, so that the gas evolution of the sand core is large, the casting gas hole defects are caused, and the sand consumption is increased, so that the sand core cost is increased.

Because the sand core of the conical inner cavity of the exhaust end is large, the sand core incrustation thickness of the sand core is uneven in the traditional shell core making process, the sand core is low in intensity due to the fact that the incrustation thickness is small, the gas evolution of the sand core with the thick incrustation thickness is large, the casting defect is caused, the sand consumption is increased, the problem that the casting defect is caused due to the fact that the sand core incrustation is uneven in the sand core making process needs to be solved, and the problems of the uniformity and the intensity of the sand core incrustation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust end awl inner chamber psammitolite structure of managing to find time to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an exhaust end awl inner chamber core structure of managing to find time, includes the stationary mould and rather than matched with movable mould, movable mould and stationary mould are fixed mounting respectively on the shell core machine, the die cavity has all been seted up in movable mould and the stationary mould, install the piece of managing to find time in the die cavity, it has the connecting plate to manage to find time piece one end fixed mounting, the connecting plate links to each other with the output of cylinder.

As a further technical solution of the present invention: the evacuation block is connected with an evacuation device.

As a further technical solution of the present invention: and the movable mould is provided with a sand shooting port, and the sand shooting port is connected with the cavity.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the piece of taking out air to installation connecting plate and cylinder and the piece cooperation of taking out air guarantee the uniformity and the psammitolite intensity of psammitolite crust thickness, and the sand volume for the psammitolite is reduced from 4.05Kg to 2.5Kg, practices thrift sand 38%, and has reduced the production of gas evolution and foundry goods defect, and the practicality is strong.

Drawings

FIG. 1 is a schematic structural view of an exhaust end cone cavity evacuation sand core structure;

fig. 2 is a schematic structural view of the finished sand core.

In the figure: 1-fixed mould, 2-movable mould, 3-evacuation block, 4-connecting plate, 5-cylinder and 6-sand-shooting opening.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

The exhaust end cone inner cavity evacuation sand core structure shown in fig. 1 comprises a fixed die 1 and a movable die 2 matched with the fixed die, wherein the movable die 2 and the fixed die 1 are respectively and fixedly mounted on a shell core machine, cavities are formed in the movable die 2 and the fixed die 1, evacuation blocks 3 are mounted in the cavities, a connecting plate 4 is fixedly mounted at one end of each evacuation block 3, the connecting plate 4 is connected with an output end of a cylinder 5, namely the evacuation blocks 3 are arranged, the sand cores are evacuated in production, the uniformity and strength of the wall thickness of the sand cores are ensured, the sand consumption, namely the sand core gas generation amount, is reduced, so that the casting defects are reduced, the production cost is reduced, the practicability is high, and the evacuation blocks 3 are evacuated by matching the cylinder 5 and the connecting plate 4.

Furthermore, the evacuation block 3 is connected with an air-extracting device, so that air can be conveniently and completely extracted, meanwhile, in order to facilitate sand injection, the movable mold 2 is provided with a sand shooting port 6, and the sand shooting port 6 is connected with the cavity.

The working principle is as follows: respectively installing and fixing a fixed die 1 and a movable die 2 on a shell core machine, heating to a specified temperature, ejecting core sand from a sand ejection opening 6 to compact the cavities of the fixed die 1 and the movable die 2, when the shell thickness passes, extracting an evacuation block 3 by using an air cylinder 5 and a connecting plate 4, opening the movable die 2 after the core sand is solidified, and taking out the core sand to form a core sand product with uniform wall thickness and certain strength; through inspection, the sand amount of the original sand core is 4.05Kg, the sand amount of the sand core prepared by the embodiment is reduced to 2.5Kg, and the structure of the sand core is shown in figure 2.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an exhaust end awl inner chamber core structure of managing to find time, includes stationary mold (1) and rather than matched with moving die (2), its characterized in that: the shell core machine is characterized in that the movable mold (2) and the fixed mold (1) are respectively and fixedly installed on the shell core machine, cavities are formed in the movable mold (2) and the fixed mold (1), the cavity is internally provided with the evacuation block (3), one end of the evacuation block (3) is fixedly provided with the connecting plate (4), and the connecting plate (4) is connected with the output end of the air cylinder (5).

2. The exhaust end cone cavity evacuation core structure of claim 1, wherein: the evacuation block (3) is connected with an evacuation device.

3. The exhaust end cone cavity evacuation core structure of claim 1 or 2, wherein: the movable mould (2) is provided with a sand shooting port (6), and the sand shooting port (6) is connected with the cavity.