CN218080264U

CN218080264U - Self-breaking type inner pouring gate structure of wax mould of thin-wall part

Info

Publication number: CN218080264U
Application number: CN202221974270.9U
Authority: CN
Inventors: 程健; 林欣; 施长坤; 汪兴芳; 左权; 柳鸿
Original assignee: Anhui Yingliu Hangyuan Power Technology Co Ltd
Current assignee: Anhui Yingliu Hangyuan Power Technology Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-20
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a thin-wall part wax mould self-breaking type inner sprue structure, which comprises a wax mould body, wherein the upper part of the wax mould body is provided with a cross gate extending outwards, the cross gate is connected with a vertical sprue, and the cross gate is provided with a self-breaking structure; when the vertical pouring gate connected with the wax mould body is removed, the vertical pouring gate is automatically separated from the cross pouring gate at the self-breaking structure, so that the wax mould body is not influenced, and the repairing amount of the wax mould body is reduced; the size of the wax mould body is guaranteed, and the casting scrapping caused by the problem of local size is avoided.

Description

Thin-wall part wax mould self-breaking inner pouring gate structure

Technical Field

The utility model relates to a precision casting technical field, in particular to thin wall spare wax matrix is from disconnected formula ingate structure.

Background

With the continuous development of the aviation industry and gas turbines, thin-walled parts are used more and more widely in aviation and aerospace engines. Parts used in high temperature environments are mostly obtained by investment casting. Investment casting is to prepare a wax pattern through a mold, and a qualified casting is obtained through a series of processes, so that the size of the wax pattern is the key for ensuring the size of the casting, and the integrity and the qualified size of the wax pattern are ensured when the wax pattern is taken out of the mold. Generally, when a mould structure is designed, firstly, how a wax mould can be taken out smoothly needs to be considered, secondly, whether influence is caused on a ceramic core or other cores needs to be considered, and finally, the position and the shape of a feed port need to be considered, most of mould factory designers do not have the production experience of a foundry, sometimes, the position and the structure of the feed port need to be considered as long as wax can enter a mould cavity, and therefore when the feed port is removed, the position of the ceramic core in the mould is influenced due to the position of the feed port or the incomplete position of the feed port at the feed port connected with the wax mould. As shown in a wax mould structure 1 'of figure 3, due to the limitation of the structure of parts and the structure of a mould, a feed inlet 2' needs to enter from the right upper part of the wax mould or from a thinner wall thickness part when the mould is opened, and most of feed inlets designed in the prior art adopt a cylindrical shape or a shape following the feed inlet. The feeding hole designed in the way is very easy to cause the damage of the wax mold near the inner sprue when the upper cover is opened or opened, the damaged part is usually saved by adopting a bonding or repairing method, but the original size of the wax mold is influenced by adopting any saving method, and finally the size of the casting is unqualified.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a thin-wall part wax mould self-breaking type inner pouring gate structure, when a vertical pouring gate connected with a wax mould body is removed, the vertical pouring gate is automatically separated from a cross gate at the self-breaking structure, the wax mould body cannot be influenced, and the repairing amount of the wax mould body is reduced; the size of the wax mould body is guaranteed, the casting scrapping caused by the problem of local size is avoided, and the problem in the background technology can be effectively solved.

In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a thin wall spare wax matrix is from disconnected formula ingate structure, includes the wax matrix body, the upper portion of wax matrix body is equipped with the cross gate that extends to the outside, be connected with the sprue on the cross gate, the self-breaking structure has been seted up on the cross gate.

Preferably, the wax mould body is of a thin-wall annular structure.

Preferably, the self-breaking structure is close to the wax mould body.

Preferably, the self-breaking structure is a groove formed in the upper surface of the cross gate, and two side edges, close to the wax mold body, of the groove are provided with breaking grooves.

Preferably, the thickness of the cross gate is 5.0mm, the width of the cross gate is 8.0mm, and the thickness of the bottom surface of the groove and the bottom surface of the cross gate is 2.0mm.

Preferably, one side surface of the groove close to the cross gate is of a slope structure.

Preferably, the fracture groove consists of a trapezoidal groove and a semicircular groove, and the small-area end of the trapezoidal groove is in tangential butt joint with the semicircular groove.

Preferably, the depth of the trapezoid groove is 0.5mm, the width of the opening is 1.5mm, and the radius of the semicircular groove is 0.5mm.

Compared with the prior art, the utility model discloses the beneficial effect who produces is: when the vertical pouring gate connected with the wax mould body is removed, the vertical pouring gate is automatically separated from the cross pouring gate at the self-breaking structure, the wax mould body cannot be influenced, and the repairing amount of the wax mould body is reduced; the size of the wax mould body is guaranteed, and the casting scrapping caused by the problem of local size is avoided.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a partial schematic structural view of the present invention;

fig. 3 is a schematic perspective view of an original wax pattern structure.

In the figure: 1. a wax pattern body; 2. a horizontal runner; 3. erecting a pouring gate; 4. a groove; 5. a fracture groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-2, this embodiment provides a thin-walled piece wax matrix is from disconnected formula ingate structure, including wax matrix body 1, this wax matrix body 1 is thin wall annular structure, and is the nonstandard structure, is equipped with outside extending's cross gate 2 on the upper portion of wax matrix body 1, and cross gate 2 sets up to three and circumference distribution, the one end that wax matrix body 1 was kept away from to cross gate 2 is connected with vertical gate 3, has seted up from disconnected structure on cross gate 2, and from disconnected structure being close to wax matrix body 1 and setting up, from disconnected structure for setting up the recess 4 at cross gate 2 upper surface, the recess 4 is close to the both sides limit of wax matrix body 1 and has seted up disconnected notch 5, and recess 4 extends to vertical gate 3, the thickness of cross gate 2 is 5.0mm, and the width is 8.0mm, the bottom surface of recess 4 is 2.0mm with the bottom surface thickness of cross gate 2, the side that recess 4 is close to cross gate 2 is the inclined plane structure, disconnected groove 5 comprises dovetail groove and semicircle groove, the small face end of dovetail groove is tangent with the semicircle groove, open the half-sided groove, and the automatic notch is 3 mm from vertical gate 3, because of vertical gate 3 mm, the vertical gate 3 is opened when the mould body is automatic, the vertical gate structure.

When the vertical sprue connected with the wax mould body 1 is removed, the vertical sprue is automatically separated from the horizontal runner 2 at the self-breaking structure, the wax mould body cannot be influenced, and the residual horizontal runner 2 after the disconnection is removed by a wax mould welding knife, so that the repairing amount of the wax mould body is reduced; the size of the wax mould body is guaranteed, and the casting scrapping caused by the problem of local size is avoided.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a thin wall spare wax matrix is from disconnected formula ingate structure, includes the wax matrix body, its characterized in that: the upper portion of wax matrix body is equipped with the cross gate that extends to the outside, be connected with the sprue on the cross gate, the self-breaking structure has been seted up on the cross gate.

2. A thin-walled member wax mold self-breaking type ingate structure according to claim 1, wherein: the wax mould body is of a thin-wall annular structure.

3. A thin-walled member wax mold self-breaking type ingate structure according to claim 1, wherein: the self-breaking structure is close to the wax mould body.

4. A thin-walled member wax mold self-breaking type ingate structure according to claim 1, wherein: the self-breaking structure is a groove arranged on the upper surface of the cross gate, and two side edges of the groove, which are close to the wax mold body, are provided with breaking grooves.

5. A thin walled member wax pattern self-breaking ingate structure according to claim 4, wherein: the thickness of the horizontal pouring gate is 5.0mm, the width of the horizontal pouring gate is 8.0mm, and the thickness of the bottom surface of the groove and the bottom surface of the horizontal pouring gate is 2.0mm.

6. A thin walled member wax pattern self-breaking ingate structure according to claim 4, wherein: and one side surface of the groove close to the cross pouring channel is of an inclined surface structure.

7. A thin-walled piece wax pattern self-breaking type ingate structure according to claim 4, wherein: the fracture groove consists of a trapezoidal groove and a semicircular groove, and the small-area end of the trapezoidal groove is in tangent butt joint with the semicircular groove.

8. A thin walled member wax pattern self-breaking ingate structure according to claim 7, wherein: the depth of dovetail groove is 0.5mm, and opening part width is 1.5mm, the radius of semicircle trough is 0.5mm.