CN216461582U

CN216461582U - Lost wax casting mould structure

Info

Publication number: CN216461582U
Application number: CN202122392977.0U
Authority: CN
Inventors: 蓝福珍; 彭亮
Original assignee: ANHUI WEIGONG MACHINERY TECHNOLOGY CO LTD
Current assignee: ANHUI WEIGONG MACHINERY TECHNOLOGY CO LTD
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-10
Anticipated expiration: 2031-09-30

Abstract

The utility model provides a lost wax casting mold structure applied to the technical field of lost wax casting, which comprises a shell (1) and a wax pattern (2), wherein the wax pattern (2) is positioned in the shell (1), a placing hole (3) is formed in the wax pattern (2), an internal chill (4) is placed in the placing hole (3), an external chill (5) is also arranged on the outer surface of the wax pattern (2), and the external chill (5) is simultaneously fixed on the shell (1).

Description

Lost wax casting mould structure

Technical Field

The utility model belongs to the technical field of lost wax casting, and particularly relates to a lost wax casting mold structure.

Background

In the casting production, the lost wax casting production process is a relatively common process method, but in the lost wax casting process in the prior art, for some casting products with complex structures and high requirements on internal quality, the castings cast by lost wax have the defect of shrinkage cavity, so that the operation difficulty in the production process is high, the cost is high, and the market competitive advantage is influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: aiming at the defects of the prior art, the lost wax casting die structure is simple in structure, low in cost, capable of conveniently and reliably eliminating the shrinkage cavity defect of the corresponding part on the basis of meeting the inherent quality requirement of a cast product, and capable of greatly reducing the operation difficulty in the production process, greatly reducing the production cost and improving the market competitive advantage.

To solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model relates to a lost wax casting mold structure which comprises a shell and a wax pattern, wherein the wax pattern is positioned in the shell, a placing hole is formed in the wax pattern, an inner chill is placed in the placing hole, an outer chill is further arranged on the outer surface of the wax pattern, and the outer chill is simultaneously fixed on the shell.

The placement holes are of a structure which does not penetrate through the wax pattern or penetrates through the wax pattern.

The external chill is a structure which penetrates through the shell or does not penetrate through the shell.

When the placing hole is of a structure which does not penetrate through the wax pattern, when the internal chill is placed in the placing hole, one end of the internal chill is fixed on the inner wall of the shell.

When the placing hole is of a structure penetrating through the wax pattern, and the internal chill is placed in the placing hole, each end of the internal chill is respectively fixed on the inner wall of one side of the shell.

The shell is provided with a positioning hole, and the external chill is positioned in the positioning hole.

The internal chill is made of cast iron or steel.

The external chill is made of cast iron or steel.

By adopting the technical scheme of the utility model, the following beneficial effects can be obtained:

according to the lost wax casting mold structure, when casting a casting product, a chill is used in lost wax casting, a placing hole is arranged at a necessary position on a wax pattern according to the structure and the shape of the product, an inner chill is arranged in the placing hole, the inner chill is fused with the casting formed by lost wax casting, and the outer chill is attached to the outer surface of the casting and is fixedly positioned by a shell. After the casting is formed, the outer chill is only contacted with the surface of the casting, so that the outer chill is convenient to take down, the inner chill needs to be taken down through a machining process, and the part of the inner chill, namely a fabrication hole needed to be arranged on the casting, is taken down. Therefore, after the inner chill and the outer chill are arranged, the chills can reliably realize the cooling effect when casting castings, so that the shrinkage cavity defect at the contact part of the chills is effectively prevented, and the castings are effectively processed. Effectively overcomes the defects and improves the quality. The lost wax casting mold structure disclosed by the utility model is simple in structure and low in investment cost, can conveniently and reliably eliminate the shrinkage cavity defect of the corresponding part on the basis of meeting the inherent quality requirement of a cast product, greatly reduces the operation difficulty in the production process, greatly reduces the production cost and improves the market competitive advantage.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a schematic structural view of a lost wax casting mold structure according to the present invention;

in the drawings, the reference numbers are respectively: 1. molding a shell; 2. a wax pattern; 3. placing holes; 4. internal chill; 5. external chill; 6. and (7) positioning the holes.

Detailed Description

The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:

as shown in the attached drawing 1, the utility model relates to a lost wax casting mold structure which comprises a shell 1 and a wax pattern 2, wherein the wax pattern 2 is positioned in the shell 1, a placing hole 3 is formed in the wax pattern 2, an inner chill 4 is placed in the placing hole 3, an outer chill 5 is also arranged on the outer surface of the wax pattern 2, and the outer chill 5 is simultaneously fixed on the shell 1. The structure provides a brand-new technical scheme based on a smart concept aiming at the problems in the prior art. When casting a casting product, a chill is used in lost wax casting, a placing hole is arranged at a necessary position on a wax pattern according to the structure and the shape of the product, an inner chill is arranged in the placing hole, the inner chill is fused with the casting molded by lost wax casting, and an outer chill is attached to the outer surface of the casting and is fixedly positioned by a shell. After the casting is formed, the outer chill is only contacted with the surface of the casting, so that the outer chill is convenient to take down, the inner chill needs to be taken down through a machining process, and the part of the inner chill, namely a fabrication hole needed to be arranged on the casting, is taken down. Therefore, after the inner chill and the outer chill are arranged, the chills can reliably realize the cooling effect when casting castings, so that the shrinkage cavity defect at the contact part of the chills is effectively prevented, and the castings are effectively processed. Effectively overcomes the defects and improves the quality. The lost wax casting mold structure disclosed by the utility model is simple in structure and low in cost, can conveniently and reliably eliminate the shrinkage cavity defect of the corresponding part on the basis of meeting the inherent quality requirement of a cast product, greatly reduces the operation difficulty in the production process, greatly reduces the production cost and improves the market competitive advantage.

The placement holes 3 are not penetrated through the wax pattern 2 or penetrate through the wax pattern 2. Above-mentioned structure, it has two kinds of structures to place the hole, corresponds places the interior chill. After the casting is formed, the internal chill needs to be taken down through processes such as drilling and the like, the part is a process hole required by the casting, and the process hole eliminates the defect of shrinkage cavity.

The external chilling block 5 is a structure which penetrates the shell 1 or does not penetrate the shell 1. The shell 1 is provided with a positioning hole 6, and the external chilling block 5 is positioned in the positioning hole 6. In the above structure, the external chill is located in the positioning hole, which is actually a structure in which the positioning hole penetrates the shell 1 or does not penetrate the shell 1. Therefore, the external chill is reliably fixed in the casting process and is convenient to take down in the later period.

When the placing hole 3 is of a structure which does not penetrate through the wax pattern 2, and the internal chill 4 is placed in the placing hole 3, one end of the internal chill 4 is fixed on the inner wall of the shell 1. By adopting the structure, when the wax pattern is positioned in the shell, the placement and the positioning of the internal chill are realized, after the casting is formed by lost wax casting, the internal chill and the casting are integrated, and the internal chill can reliably cool the contacted casting part, thereby eliminating the shrinkage cavity defect.

When the placing hole 3 is of a structure penetrating through the wax pattern 2, and the internal chill 4 is placed in the placing hole 3, each end of the internal chill 4 is respectively fixed on the inner wall of one side of the shell 1. When the wax pattern is positioned in the shell, the placement and positioning of the internal chill are realized, after the casting is formed by lost wax casting, the internal chill and the casting are integrated, and the internal chill reliably cools the contacted casting part to eliminate the shrinkage cavity defect.

The internal chill 4 is made of cast iron or steel. The internal chill is made of cast iron or steel material with the same type as the poured steel, the contact part of the casting is reliably cooled by the internal chill, the chemical composition of the contact part of the casting can be ensured after pouring, and the shrinkage cavity defect is eliminated.

The external chill 5 is made of cast iron or steel. The cost is reduced.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the utility model, and its application to other applications without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a lost wax casting mould structure which characterized in that: lost wax casting mould structure include shell (1), wax matrix (2) are located shell (1), set up on wax matrix (2) and place hole (3), place interior chill (4) in placing hole (3), wax matrix (2) surface still sets up outer chill (5), outer chill (5) are fixed simultaneously on shell (1).

2. The lost wax casting mold structure of claim 1, wherein: the placement holes (3) are of a structure which does not penetrate through the wax patterns (2) or penetrate through the wax patterns (2).

3. A lost wax casting mold structure according to claim 1 or 2, wherein: the external chill (5) is of a structure penetrating the shell (1) or not penetrating the shell (1).

4. The lost wax casting mold structure of claim 2, wherein: when the placing hole (3) is of a structure which does not penetrate through the wax pattern (2), and the internal chill (4) is placed in the placing hole (3), one end of the internal chill (4) is fixed on the inner wall of the shell (1).

5. The lost wax casting mold structure of claim 2, wherein: when the placing hole (3) is of a structure penetrating through the wax pattern (2), and the internal chill (4) is placed in the placing hole (3), each end of the internal chill (4) is respectively fixed on the inner wall of one side of the shell (1).

6. A lost wax casting mold structure according to claim 1 or 2, wherein: the shell (1) is provided with a positioning hole (6), and the external chilling block (5) is positioned in the positioning hole (6).

7. A lost wax casting mold structure according to claim 1 or 2, wherein: the internal chill (4) is made of cast iron or steel.

8. A lost wax casting mold structure according to claim 1 or 2, wherein: the external chill (5) is made of cast iron or steel.