CN216705847U

CN216705847U - Precision casting tree assembling structure with heat preservation function

Info

Publication number: CN216705847U
Application number: CN202123395844.5U
Authority: CN
Inventors: 周妃树; 叶道林; 姜勇刚; 曾娟
Original assignee: Acewell Zhongshan Co ltd
Current assignee: Acewell Zhongshan Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-10
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a precision casting tree-assembling structure with a heat preservation function, which comprises a die head and a gate bar connected below the die head, a plurality of inner gates connected to the gate bar, and a plurality of wax mold components connected to each inner gate, the utility model aims to provide a scheme that the distance between the heat preservation piece and a product can be limited by the positioning column at the end part of the heat preservation piece, so that the problem of shrinkage cavity of the cast product can be solved, the cooling sequence of molten steel after the product is poured is changed through the heat preservation sheet, the abnormal shrinkage cavity of the product is solved, the product quality is improved, the rejection rate of the product is reduced, and the production efficiency is improved.

Description

Precision casting tree assembling structure with heat preservation function

Technical Field

The utility model relates to the technical field of dense casting production, in particular to a precision casting tree combining structure with a heat preservation function.

Background

Lost wax casting in precision casting is a process with little or no cutting, and the casting method has been widely used in industrial production due to the advantages of high dimensional accuracy and surface smoothness of the obtained product casting. The tree formation is a process belonging to a wax injection (pattern making) workshop, namely, qualified wax patterns are formed on a die head to be made into a complete casting system, namely a tree string. Precision casting need be earlier with mould manufacturing wax matrix in the tree group production process, then the wax matrix is stained with the ingate, and the equipment is on the die head through connecting wax again, forms a tree group structure, carries out the operation on next step again: and obtaining a good casting by slurry dipping, sand pouring, dewaxing and pouring. However, the complex product can not be solved by the conventional tree grouping scheme, the hole shrinkage rejection rate can reach more than 50%, the production cost is high, and the profit margin of the product is small.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a precision casting tree-assembling structure which has a heat preservation function, improves the problem of product shrinkage cavity, reduces the rejection rate, improves the production efficiency and effectively reduces the cost.

In order to achieve the purpose, the utility model adopts the following scheme: the utility model provides a precision casting tree assembling structure with heat preservation function, is including the die head, connects the runner stick under the die head, and a plurality of connections are in interior runner on the runner stick, and connect a plurality of wax matrix subassemblies of each interior runner be equipped with heat preservation piece on the interior runner respectively heat preservation piece one end is equipped with the reference column, the end connection of reference column is adjacent on the wax matrix subassembly.

In a further aspect of the present invention, the gate bar is cross-shaped, and the ingates are connected to left and right sides of the gate bar, respectively.

As a preferable aspect of the present invention, the cross section of the ingate is trapezoidal.

In a further aspect of the present invention, the number of the gates on any one side of the gate bar is two gates disposed at two horizontal ends of the gate bar in a cross shape and one gate disposed at a vertical top end of the gate bar in a cross shape, and the heat insulating members are disposed at the two gates at the two horizontal ends.

As a preferable scheme of the present invention, the heat preservation member includes heat preservation pieces respectively disposed on two ingates at two horizontal ends, the heat preservation pieces are attached to the back and the side of the wax pattern member at the corresponding sides, and the positioning column is disposed at the head end of the heat preservation pieces.

In a preferred embodiment of the present invention, the heat-insulating sheet is a wax sheet formed by pressing with a mold.

Preferably, the heat preservation sheet is arc-shaped.

As a preferable scheme of the utility model, the end part of the heat preservation sheet is tapered.

In summary, compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the scheme that the heat preservation sheet capable of being attached to the back and the side of the wax mold is additionally arranged at the front end of the inner pouring gate, and the positioning column at the end part of the heat preservation sheet can limit the distance between the heat preservation sheet and a product can be adopted, so that the problem of shrinkage cavity of the product formed by casting can be solved, the cooling sequence of molten steel after the product is poured is changed through the heat preservation sheet, the problem of abnormal shrinkage cavity of the product is solved, the product quality is improved, the rejection rate of the product is reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a front structural view of the present invention.

FIG. 2 is a side view of the present invention and a partial enlarged group tree structure thereof.

Fig. 3 is an exploded view of the present invention.

Description of reference numerals: 1. a die head; 2. A gate bar; 3. an inner gate; 4. a wax pattern assembly; 5. a heat preservation member; 6. a positioning column; 51. a heat preservation sheet.

Detailed Description

The following detailed description provides many different embodiments or examples for implementing the utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. In addition, repeated reference numbers, such as repeated numbers and/or letters, may be used in various embodiments. These iterations are for simplicity and clarity of describing the present invention and are not intended to represent a particular relationship between the various embodiments and/or configurations discussed.

Furthermore, spatially relative terms, such as "below" … "," below "," inside-out "," above "," upper "and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature during use or operation of the device, and may include different orientations of the device during use or operation of the device as illustrated in the figures. The devices may be rotated 90 degrees or other orientations from different orientations and the spatially relative descriptors used therein should be interpreted as such and are not to be construed as limiting the utility model, and the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The utility model will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings: as shown in fig. 1 to 3, the precision casting tree assembling structure with the heat preservation function comprises a die head 1, a gate rod 2 connected below the die head 1 and in a cross shape, a plurality of inner gates 3 respectively connected to the left and right sides of the gate rod 2, and a plurality of wax mold assemblies 4 connected to the inner gates 3, wherein the cross section of each inner gate 3 is trapezoidal, heat preservation members 5 are respectively arranged on the inner gates 3, one end of each heat preservation member 5 is provided with a positioning column 6, and the end part of each positioning column 6 is connected to the adjacent wax mold assembly 4.

Specifically, 3 inner gates 3 on any side of the gate stick 2 are respectively two inner gates 3 arranged at two cross-shaped horizontal transverse end parts of the gate stick 2 and one inner gate 3 arranged at a cross-shaped vertical top end of the gate stick 2, the inner gates 3 are respectively connected with the back of the middle part of the wax mould component 4 and the top of the wax mould component 4, the heat preservation components 5 are respectively arranged on the two inner gates 3 at the horizontal transverse end parts, because the back wall of the product is thin and the pipe orifice position of the inner gate 3 is thicker, molten steel at the thin back part of the wax mould component 4 is cooled firstly after molten steel is poured, the pipe orifice position of the inner gate 3 is not cooled, a shrinkage cavity is produced at the thick position without molten steel supplement, the heat preservation component 5 is adhered to the back part for preserving heat, the positions of the inner gates 3 are cooled firstly, and thus the molten steel cooling sequence after the product is poured can be changed, the problem of abnormal shrinkage of products is solved, the product quality is improved, the rejection rate of the products is reduced, and the production efficiency is improved.

Wherein, heat preservation piece 5 is including setting up the heat preservation piece 51 on two ingate 3 at horizontal both ends respectively, heat preservation piece 51 laminates in the wax mould assembly 4 back and the lateral part that correspond the side, reference column 6 sets up the head end of heat preservation piece 51, heat preservation piece 51 is the arc tip for the whole through mould press forming and is conical wax piece, installs in the 3 front ends of corresponding ingate through connecting wax after the group tree.

While there have been shown and described the fundamental principles and principal features of the utility model and advantages thereof, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are given by way of illustration of the principles of the utility model, but is susceptible to various changes and modifications without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A precision casting tree-assembling structure with a heat preservation function comprises a die head (1), a gate bar (2) connected below the die head (1), a plurality of inner gates (3) connected on the gate bar (2), and a plurality of wax mold components (4) connected with the inner gates (3), and is characterized in that: the inner pouring gates (3) are respectively provided with a heat insulation piece (5), one end of each heat insulation piece (5) is provided with a positioning column (6), and the end parts of the positioning columns (6) are connected to the adjacent wax mold assemblies (4).

2. The precision casting tree set structure with the heat preservation function as claimed in claim 1, wherein the gate bar (2) is cross-shaped, and the inner gates (3) are respectively connected to the left and right sides of the gate bar (2).

3. The precision casting tree set structure with the heat preservation function as claimed in claim 1, wherein the cross section of the ingate (3) is trapezoidal.

4. The precision casting tree building structure with the heat preservation function according to claim 2, wherein the number of the ingates (3) on any side of the gate stick (2) is 3, the two ingates (3) are respectively arranged on the two horizontal transverse end parts of the gate stick (2) in a cross shape, and the one ingate (3) is arranged on the vertical top end of the gate stick (2) in a cross shape, and the heat preservation pieces (5) are respectively arranged on the two ingates (3) on the two horizontal transverse end parts.

5. The precision casting tree assembly structure with the heat preservation function according to claim 4, wherein the heat preservation part (5) comprises heat preservation pieces (51) respectively arranged on two inner gates (3) at two horizontal and transverse end parts, the heat preservation pieces (51) are attached to the back and the side parts of the wax mold assembly (4) at the corresponding sides, and the positioning columns (6) are arranged at the head ends of the heat preservation pieces (51).

6. The precision casting tree set structure with the heat preservation function as claimed in claim 5, wherein the heat preservation sheet (51) is a wax sheet formed by die pressing.

7. The precision casting tree set structure with heat preservation function as claimed in claim 5 or 6, wherein the heat preservation sheet (51) is arc-shaped.

8. The precision casting tree set structure with heat preservation function as claimed in claim 7, wherein the end of the heat preservation sheet (51) is tapered.