CN212945288U

CN212945288U - Investment casting structure for ice making barrel

Info

Publication number: CN212945288U
Application number: CN202021655552.3U
Authority: CN
Inventors: 辛惠轩
Original assignee: Shenzhen Kelida Industrial Co ltd
Current assignee: Shenzhen Kelida Industrial Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-04-13
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses an investment casting structure for ice making barrel, which comprises a gate stick, wherein the gate stick is provided with at least two layers of cross gate groups along the length direction, any layer of cross gate group comprises a plurality of cross gates, the adjacent two layers of cross gates are respectively arranged in a one-to-one symmetry manner, at least one wax mold is arranged between the adjacent two layers of symmetrical cross gates, and the upper end and the lower end of the wax mold are respectively correspondingly connected with the cross gates through inner gates; the side wall of the wax mould is provided with a through hole, and a ceramic core is filled in the through hole. The utility model discloses technical scheme improves the as cast production efficiency of ice-making bucket investment and product yield, reduction in production cost.

Description

Investment casting structure for ice making barrel

Technical Field

The utility model relates to an investment casting technical field, in particular to investment casting structure for making ice bucket.

Background

The ice making barrel is a core fitting of a household ice sand machine, is made of cast 304 stainless steel, needs to be produced in large batch, and in order to control the manufacturing cost, a blank of the ice making barrel is formed by precision investment casting, and then is subjected to precision machining and surface treatment to finish a finished product of the ice making barrel. The original production process scheme of the product blank is shown in figure 1, a group of two parts are adopted, each group weighs 6.6KG, the process yield is 36%, the production efficiency is low, the production cost is high, meanwhile, as the ice making barrel is complex in structure and is a thin-wall barrel part, a through hole of 7mm is formed in the side wall of the ice making barrel, the slurry is difficult to form by the traditional investment casting process, and the rejection rate is high.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an investment casting structure for making ice bucket aims at improving the as cast production efficiency of system ice bucket investment and product yield, reduction in production cost.

In order to achieve the purpose, the utility model provides an investment casting structure for ice making barrel, which comprises a gate stick, wherein the gate stick is provided with at least two layers of cross gate groups along the length direction, any layer of cross gate group comprises a plurality of cross gates, the cross gates of two adjacent layers are respectively arranged in a one-to-one symmetry manner, at least one wax mold is arranged between the symmetrical cross gates of two adjacent layers, and the upper end and the lower end of the wax mold are respectively connected with the cross gates through inner gates; the side wall of the wax mould is provided with a through hole, and a ceramic core is filled in the through hole.

Preferably, the sprue bar comprises a sprue which is a square hollow bar body structure, and a sprue cup is arranged at the end part of the sprue.

Preferably, the gate stick is provided with two layers of runner sets along the length direction thereof.

Preferably, any layer of cross gate group comprises four cross gates, and the four cross gates are respectively connected with the side surfaces of the straight gates.

Preferably, a wax pattern is arranged between the symmetrical cross runners of two adjacent layers.

Preferably, two ends of the wax mould are respectively connected with the cross gate through two inner gates, and the two inner gates are symmetrically arranged.

Preferably, the cross gate close to one side of the pouring cup is connected with the pouring cup through an exhaust passage.

Preferably, the ceramic core extends outside the through hole.

Compared with the prior art, the beneficial effects of the utility model are that: the structure of the traditional ice making barrel investment casting is improved, the cross runners are arranged to be at least two layers, each layer is provided with four cross runners, and at least one wax mold is arranged between every two adjacent layers of cross runners, so that the production efficiency of investment casting is greatly improved. Meanwhile, the ice maker is complex in structure, so that the ceramic core is filled in the through hole of the wax mould, the mortar is more quickly and conveniently formed, and the ceramic core only needs to be drawn out after the mortar is formed, so that the yield of products is greatly improved, and the production cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a conventional ice making barrel investment casting configuration;

FIG. 2 is an investment casting structure of the ice making barrel of the present invention;

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Referring to fig. 2, the investment casting structure for an ice making barrel provided by this embodiment includes a gate stick 1, the gate stick 1 is provided with at least two layers of cross gate groups along a length direction thereof, any one layer of cross gate group includes a plurality of cross gates 2, the cross gates 2 of two adjacent layers are respectively arranged in a one-to-one symmetrical manner, at least one wax mold 3 is arranged between the symmetrical cross gates 2 of two adjacent layers, and upper and lower ends of the wax mold 3 are respectively connected with the cross gates 2 through an inner gate 4; a through hole 31 is formed in the side wall of the wax mould 3, and a ceramic core 5 is filled in the through hole 31.

It should be noted that, referring to fig. 1, the conventional investment casting structure has only two cross-runner sets, each cross-runner set has only two cross-runners 2, and a wax pattern 3 is arranged between the symmetrical cross-runners 2 of the two cross-runner sets, so that the conventional investment casting structure can only cast two finished products at a time, each set weighs 6.6kg, and the process yield is only 36%. In this embodiment, the cross gate group is arranged into at least two layers, and the number of the cross gates 2 of each layer of the cross gate group is increased, so that the number of cast products is increased, and the production efficiency is greatly improved.

Specifically, in the present embodiment, the gate stick 1 includes a sprue 11, the sprue 11 is a square hollow rod structure, and a gate cup 12 is disposed at an end of the sprue 11. The gate stick 1 is provided with two layers of cross gate sets along the length direction. Any layer of the cross gate group comprises four cross gates 2, and the four cross gates 2 are respectively connected with the side surfaces of the sprue 11. In this embodiment, the horizontal runners 2 are also provided with square hollow bar structures, and a wax pattern 3 is arranged between two adjacent layers of symmetrical horizontal runners 2. Therefore, the embodiment can cast at least four finished products at one time, which is at least twice of that of the traditional method, thereby improving the production efficiency and reducing the production cost.

The two ends of the wax mould 3 are respectively connected with the cross gate 2 through two inner gates 4, and the two inner gates 4 are symmetrically arranged, so that the uniformity of the casting process is ensured, and the quality of a finished product is improved. The ceramic core 5 extends to the outside of the through hole 31, so that the ceramic core 5 can be taken out conveniently, specifically, in the embodiment, the specification of the through hole 31 is set to 7 x 40, and the specification of the ceramic core 5 is set to 7 x 50, so that the defect that a finished shell is difficult to manufacture in the traditional process method is overcome, the yield of finished products is greatly improved, the production cost is further reduced, and the yield is improved.

Furthermore, the cross gate 2 close to one side of the sprue cup 12 is connected with the sprue cup 12 through the exhaust passage 6, so that gas in the wax mould can be conveniently exhausted, finished products can be conveniently cast, and the yield of the finished products is improved.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An investment casting structure for an ice making barrel is characterized by comprising a gate stick, wherein the gate stick is provided with at least two layers of cross gate groups along the length direction of the gate stick, any layer of cross gate group comprises a plurality of cross gates, the cross gates of two adjacent layers are respectively arranged in a one-to-one symmetrical mode, at least one wax mold is arranged between the symmetrical cross gates of two adjacent layers, and the upper end and the lower end of each wax mold are respectively and correspondingly connected with the cross gates through inner gates; the side wall of the wax mould is provided with a through hole, and a ceramic core is filled in the through hole.

2. The investment casting structure for an ice making bucket of claim 1 wherein said sprue bar includes a sprue provided as a square hollow body structure with a sprue cup at an end thereof.

3. An investment casting structure for an ice making barrel according to either one of claims 1 or 2 wherein the gate bar is provided with two levels of runner sets along its length.

4. The investment casting structure for an ice making bucket of claim 2 wherein any one level of runner set includes four runners, and the four runners are connected to respective sides of the sprue.

5. The investment casting structure for an ice making bucket according to claim 1 wherein a wax pattern is provided between the symmetrical runners of two adjacent tiers.

6. The investment casting structure for an ice making bucket according to claim 5, wherein the two ends of the wax pattern are connected with the horizontal runner through two ingates respectively, and the two ingates are symmetrically arranged.

7. The investment casting structure for an ice making bucket of claim 2 wherein the runner adjacent one side of the tundish is connected to the tundish by an exhaust passage.

8. The investment casting structure for an ice making bucket of claim 1 wherein said ceramic core extends outside of said through hole.