CN216027905U

CN216027905U - Wax injection automatic die for investment casting

Info

Publication number: CN216027905U
Application number: CN202122630435.2U
Authority: CN
Inventors: 郏洋洋; 付世军; 贺显标; 齐鲁; 孔令杰; 张加轩; 马忠星
Original assignee: Etam Alloy Shandong Co ltd
Current assignee: Etam Alloy Shandong Co ltd
Priority date: 2021-10-30
Filing date: 2021-10-30
Publication date: 2022-03-15
Anticipated expiration: 2031-10-30

Abstract

The utility model relates to an automatic wax injection mould for investment casting, which comprises an upper mould and a lower mould which are matched with each other, wherein a main mould cavity for forming a main body part of a wax mould is arranged in the middle of the upper surface of the lower mould, a male mould matched with the main mould cavity is arranged on the lower surface of the upper mould, a movable mould seat sliding groove is arranged on one side of the upper surface of the lower mould, the automatic wax injection mould further comprises a movable mould sliding groove communicated with the movable mould seat sliding groove and the main mould cavity, a movable mould seat is arranged on the movable mould seat sliding groove in a sliding manner, a movable mould is integrally formed at the inner end of the movable mould seat, the movable mould penetrates through the movable mould sliding groove to be matched with the main mould cavity, the automatic wax injection mould further comprises a pushing mechanism for pushing the movable mould seat to slide towards the main mould cavity, and a wax injection hole is also arranged on the lower mould and is communicated with the main mould cavity, so that wax liquid is injected into the main mould cavity through the wax injection hole. The utility model has the following beneficial effects: the automatic preparation of the wax mould is realized. The working efficiency is improved.

Description

Wax injection automatic die for investment casting

Technical Field

The utility model relates to an automatic wax injection mold for investment casting, and belongs to the technical field of precision investment casting.

Background

The investment casting is also called lost wax casting, and comprises the procedures of wax pressing, wax trimming, tree forming, slurry dipping, wax melting, molten metal casting, post-treatment and the like. Lost wax casting is a process in which a wax pattern for a part to be cast is made of wax, and then the wax pattern is coated with slurry, that is, a clay pattern. And after the mud mold is dried, putting the mud mold into hot water to melt the internal wax mold. And taking out the clay mold after the wax mold is melted, and roasting to form the ceramic mold. Once calcined. Generally, a pouring gate is left when a mud mould is manufactured, then molten metal is poured into the mud mould from the pouring gate, and after the mud mould is cooled, required parts are manufactured. The production mode of preparing the wax mould originally is that the mould is manually made by an operator on a work station of a wax injection machine. The operation is complex and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: in order to solve one of the problems, an automatic wax injection mold for investment casting is provided.

The utility model discloses an automatic wax injection mold for investment casting, which is characterized in that: including last mould and lower mould of mutually supporting, the upper surface middle part of lower mould is equipped with the main die cavity that is used for shaping wax matrix main part, the lower surface of going up the mould be provided with main die cavity complex terrace die, upper surface one side of lower mould is equipped with the die holder spout that lives, still including the die spout that lives that communicates die holder spout and main die cavity, it is provided with the die holder that lives to slide on the die holder spout that lives, the inner integrated into one piece of die holder that lives has the mould that lives, and the mould that lives passes die spout and main die cavity cooperation, still including promoting the gliding pushing mechanism of die holder to main die cavity, still is provided with the wax injection pore on the lower mould, and the wax injection pore is linked together with main die cavity, pours into main die cavity into wax liquid through the wax injection pore.

Preferably, the main cavities are provided with four groups, the movable die bases are provided with two groups, each movable die base is provided with two groups of movable dies, and the wax injection pore passage is communicated with the corresponding main cavity through the wax injection branch pore passage.

Preferably, the upper surface of the movable die and the upper surface of the movable die holder are flush with the upper surface of the lower die.

Preferably, the pushing mechanism comprises driving blocks, the driving blocks are fixed on the upper die, the lower ends of the driving blocks are provided with driving surfaces, the back surfaces of the movable die seats are provided with inclined surfaces matched with the driving surfaces, each movable die seat corresponds to two groups of driving blocks, and a reserved gap is formed between each two driving blocks; the die comprises a die holder and is characterized by further comprising a limiting screw penetrating through the die holder, the inner end of the limiting screw is fixed on the inner end face of a sliding groove of the die holder, a compression spring is mounted on the limiting screw between the lower die and the die holder, and a stepped hole for accommodating the limiting screw is formed in the end face of the die holder.

Preferably, the upper die and the lower die are both internally provided with cooling water flow passages.

Preferably, the wax mold further comprises an automatic demolding mechanism, the automatic demolding mechanism comprises an ejection block, a vertical ejection block sliding groove is formed in the lower mold, the ejection block sliding groove is communicated with the main mold cavity, the ejection block slides up and down along the ejection block sliding groove, and the ejection block, the upper mold, the lower mold, the male mold and the movable mold are closed to form the wax mold cavity.

Preferably, the four ejection blocks are all fixed on the upper surface of the lifting plate, the lower surface of the lifting plate is fixed with a push-out cylinder, a cylinder body of the push-out cylinder is fixed on a wax injection machine station, four corners of the lower die are respectively provided with an installation upright post, the lower die is installed on the wax injection machine station through the installation upright posts, and the upper surface of the upper die is connected with a telescopic end of a lifting cylinder of the wax injection machine.

Compared with the prior art, the utility model has the following beneficial effects: according to the automatic wax injection mold for investment casting, the pushing cylinder body is fixed on a wax injection machine station, the four corners of the lower mold are respectively provided with the mounting upright columns, the lower mold is mounted on the wax injection machine station through the mounting upright columns, the upper surface of the upper mold is connected with the telescopic end of the lifting cylinder of the wax injection machine, the automatic mold and the wax injection machine are connected automatically, and automatic preparation of the wax mold is achieved. The working efficiency is improved.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of an installation position of the movable mold base;

FIG. 3 is a schematic view of the installation position of the limit screw;

FIG. 4 is a schematic view of the mounting position of the male mold;

in the figure: 1. the device comprises an upper die 2, a lower die 3, a main cavity 4, a male die 5, a driving block 6, a movable die 7, a movable die seat chute 8, a movable die chute 9, a movable die seat 10, a wax injection duct 11, an ejection block 12, a lifting plate 13, a push-out cylinder 14, a limit screw 15 and a compression spring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the utility model, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Examples

As shown in fig. 1-4, the automatic wax injection mold for investment casting comprises an upper mold 1 and a lower mold 2 which are matched with each other, wherein a main mold cavity 3 for molding a main body part of a wax mold is arranged in the middle of the upper surface of the lower mold 2, a male mold 4 matched with the main mold cavity 3 is arranged on the lower surface of the upper mold 1, a movable mold seat sliding groove 7 is arranged on one side of the upper surface of the lower mold 2, the automatic wax injection mold further comprises a movable mold sliding groove 8 for communicating the movable mold seat sliding groove 7 with the main mold cavity 3, a movable mold seat 9 is slidably arranged on the movable mold seat sliding groove 7, a movable mold 6 is integrally molded at the inner end of the movable mold seat 9, the movable mold 6 penetrates through the movable mold sliding groove 8 to be matched with the main mold cavity 3, the automatic wax injection mold further comprises a pushing mechanism for pushing the movable mold seat 9 to slide towards the main mold cavity 3, a wax injection hole 10 is further arranged on the lower mold 2, and the wax injection hole 10 is communicated with the main mold cavity 3, and wax liquid is injected into the main mold cavity 3 through the wax injection hole 10.

In this embodiment, four groups of main cavities 3 are provided, two groups of movable mold bases 9 are provided, two groups of movable molds 6 are provided on each movable mold base 9, and the wax injection pore passage 10 is communicated with the corresponding main cavity 3 through a wax injection branch pore passage; the upper surface of the movable die 6 and the upper surface of the movable die seat 9 are flush with the upper surface of the lower die 2; the pushing mechanism comprises driving blocks 5, the driving blocks 5 are fixed on the upper die 1, the lower ends of the driving blocks 5 are provided with driving surfaces, the back surfaces of the movable die seats 9 are provided with inclined surfaces matched with the driving surfaces, each movable die seat 9 corresponds to two groups of driving blocks 5, and a reserved gap is reserved between each two driving blocks 5; the die comprises a die holder 9 and is characterized by further comprising a limit screw 14 penetrating through the die holder 9, the inner end of the limit screw 14 is fixed on the inner end face of a die holder sliding groove 7, a compression spring 15 is mounted on the limit screw 14 between the lower die 2 and the die holder 9, and a stepped hole for accommodating the limit screw 14 is formed in the end face of the die holder 9; cooling water flow channels are arranged in the upper die 1 and the lower die 2; the wax mold is characterized by further comprising an automatic demolding mechanism, wherein the automatic demolding mechanism comprises an ejection block 11, a vertical ejection block sliding groove is formed in the lower mold 2 and communicated with the main mold cavity 3, the ejection block 11 slides up and down along the ejection block sliding groove, and the ejection block 11, the upper mold 1, the lower mold 2, the male mold 4 and the movable mold 6 are closed to form a wax mold cavity; the four ejection blocks 11 are all fixed on the upper surface of the lifting plate 12, the lower surface of the lifting plate 12 is fixed with the ejection cylinder 13, the cylinder body of the ejection cylinder 13 is fixed on a wax injection machine station, the four corners of the lower die 2 are respectively provided with an installation upright post, the lower die 2 is installed on the wax injection machine station through the installation upright posts, and the upper surface of the upper die 1 is connected with the telescopic end of the lifting cylinder of the wax injection machine.

The working principle of the utility model is as follows: the cylinder body of the push-out cylinder 13 is fixed on a wax injection machine station, four corners of the lower die 2 are respectively provided with a mounting upright post, the lower die 2 is mounted on the wax injection machine station through the mounting upright posts, and the upper surface of the upper die 1 is connected with a telescopic end of a lifting cylinder of the wax injection machine;

a lifting cylinder of the wax injection machine pushes an upper die 1 to move downwards, a driving block 5 is matched with a movable die seat 9 to compress a compression spring 15, the movable die seat 9 slides along the length direction of a limiting screw 14, so that a movable die 6 enters a main cavity 3, a push-out cylinder 13 is in a retraction state, an ejection block 11, the upper die 1, a lower die 2, a male die 4 and the movable die 6 are combined to form a wax model cavity, a wax injection channel 10 is aligned through the wax injection machine, wax liquid is injected, and the wax model cavity is filled.

After the wax mold is formed, a lifting cylinder of the wax injection machine pushes an upper mold 1 to move upwards, a movable mold seat 9 drives a movable mold 6 to be away from a main cavity 3 under the action of a compression spring 15, then a push-out cylinder 13 is controlled to extend, and a push-out block 11 pushes the wax mold out of the main cavity 3.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an automatic mould of wax is penetrated in investment casting which characterized in that: the wax injection molding device comprises an upper die (1) and a lower die (2) which are matched with each other, wherein a main cavity (3) used for molding a wax die main body part is arranged in the middle of the upper surface of the lower die (2), a male die (4) matched with the main cavity (3) is arranged on the lower surface of the upper die (1), a movable die seat sliding groove (7) is arranged on one side of the upper surface of the lower die (2), the wax injection molding device further comprises a movable die sliding groove (8) communicated with the movable die seat sliding groove (7) and the main cavity (3), a movable die seat (9) is arranged on the movable die seat sliding groove (7) in a sliding manner, a movable die (6) is integrally molded at the inner end of the movable die seat (9), the movable die (6) penetrates through the movable die sliding groove (8) to be matched with the main cavity (3), a pushing mechanism for pushing the movable die seat (9) to slide towards the main cavity (3) is further arranged, a wax injection hole (10) is further arranged on the lower die (2), and the wax injection hole (10) is communicated with the main cavity (3), wax liquid is injected into the main cavity (3) through the wax injection hole (10).

2. The automatic pattern for investment casting wax injection of claim 1, wherein: the main cavities (3) are provided with four groups, the movable die seats (9) are provided with two groups, each movable die seat (9) is provided with two groups of movable dies (6), and the wax injection pore passage (10) is communicated with the corresponding main cavity (3) through a wax injection branch pore passage.

3. The automatic pattern for investment casting wax injection of claim 2, wherein: the upper surface of the movable die (6) and the upper surface of the movable die seat (9) are flush with the upper surface of the lower die (2).

4. The automatic pattern for investment casting wax injection of claim 3, wherein: the pushing mechanism comprises driving blocks (5), the driving blocks (5) are fixed on the upper die (1), the lower ends of the driving blocks (5) are provided with driving surfaces, the back surfaces of the movable die bases (9) are provided with inclined surfaces matched with the driving surfaces, each movable die base (9) corresponds to two groups of driving blocks (5), and a reserved gap is formed between each two driving blocks (5);

the die comprises a die holder and is characterized by further comprising a limiting screw (14) penetrating through the die holder (9), the inner end of the limiting screw (14) is fixed on the inner end face of a die holder sliding groove (7), a compression spring (15) is installed on the limiting screw (14) between the lower die (2) and the die holder (9), and a stepped hole for accommodating the limiting screw (14) is formed in the end face of the die holder (9).

5. The automatic pattern for investment casting wax injection of claim 4, wherein: and cooling water flow channels are arranged in the upper die (1) and the lower die (2).