CN215697759U

CN215697759U - Combined V-method casting die

Info

Publication number: CN215697759U
Application number: CN202120932826.7U
Authority: CN
Inventors: 刘英成
Original assignee: Jinan Shengshi Sunshine Machinery Parts Co ltd
Current assignee: Jinan Shengshi Sunshine Machinery Parts Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-02-01
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a combined V-method casting mold which comprises a vacuum casting sand box, a mold inner cavity, a first product body, a second product body, a movable block, an inner cavity side wall, a pouring gate, a metal liquid and a circular tube vacuum channel. The front shapes of the first product body and the second product body are the same, one mold can be used together, the inner cavities of the products are different, so that the two groups of similar products can share one box body by additionally arranging the movable block, taking out the movable block to form a conventional first product body and putting the movable block to form a second product body.

Description

Combined V-method casting die

Technical Field

The utility model relates to a combined V-method casting mold, in particular to the technical field of molds.

Background

Casting is a process of melting solid metal into liquid, pouring the liquid into a mold with a specific shape, and solidifying and molding the liquid. The sand casting is a common casting technology, the V-method modeling is a vacuum sealing modeling casting method, also called negative pressure modeling, and the V-method horizontal modeling is generally adopted at present, and the process flow is as follows: (1) sucking and sticking a preheated plastic film to the whole surfaces of the mould and the mould under the action of negative pressure, and then uniformly spraying quick-drying paint on the film; (2) putting a sand box with an air exhaust chamber on the sand box; (3) filling dry sand without adding a binder, moisture and additives, slightly vibrating the added sand to ensure that the dry sand is filled in the sand box, scraping, covering a film on the top, and vacuumizing through the wall of the sand box; (4) turning over the box and lifting the film, wherein the plastic film is uniformly adhered to the sand mold under the action of atmospheric pressure, so that the molding sand is in a compact state, and taking out the pattern to achieve the sand mold with the hardness of about 90 degrees; (5) mold assembling, wherein the negative pressure state of the casting mold is maintained until pouring, and the casting is solidified; (6) the negative pressure contacts, the casting mold automatically collapses, and the casting can be conveniently taken out from the casting mold dry sand.

At present, products required by most enterprises in China are cast by developing product molds. Two similar products commonly used at present need two sets of completely independently arranged molds to complete production of the products when the two similar products are produced by adopting a V-method casting, so that a new mold still needs to be researched and developed when a new product is produced, and the production cost of the common molds is high and the period is long due to the complicated shape of the common molds.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides a combined V-method casting mold to solve the problems that two groups of completely independently arranged molds are needed to complete the production of products when two common similar products proposed in the background art are produced by adopting a V-method casting, so that a new mold still needs to be researched and developed when a new product is produced, and the production cost is high and the period is long due to the complicated shape of the common molds.

In order to achieve the purpose, the utility model provides the following technical scheme: a combined V-method casting mold comprises a vacuum casting sand box, a mold inner cavity, a first product body, a second product body, a movable block, an inner cavity side wall, a pouring gate, metal liquid and a circular tube vacuum channel.

Preferably, the shapes of the front faces of the first product body and the second product body are the same, the shapes of the inner cavities of the first product body and the second product body are different, a mold is placed inside the vacuum casting sand box, the mold is formed by combining a left mold and a right mold, and pouring ports are formed in the upper sides of the left mold and the right mold of the mold.

Preferably, the shape and size of the inner cavity of the mold formed after the left mold and the right mold of the mold are closed are the same as those of the first product body and the second product body of the prefabricated casting.

Preferably, the inside loose piece that is provided with of mould inner chamber, mould inner chamber is provided with the inner chamber lateral wall, the whole shape of outside of loose piece sets up according to first product body and the different departments of second product body inner chamber shape, the outside lateral wall and the inner chamber lateral wall butt of loose piece, the loose piece is for dismantling the connection.

Preferably, the shape and the size of the inner cavity of the mold with the loose piece are the same as those of the inner cavity of the second product body of the casting, and the shape and the size of the inner cavity of the mold without the loose piece are the same as those of the inner cavity of the first product body.

Preferably, the vacuum casting sand box is made of cast iron, the vacuum casting sand box is arranged in a vacuum casting sand box mode, a round sand shooting opening is formed in the top face of the vacuum casting sand box, and a round pipe vacuum channel is formed in the front side face of the vacuum casting sand box.

The utility model provides a combined V-method casting mold, which has the following beneficial effects: the front shapes of two products of the first product body and the second product body are the same, one mold can be used together, and due to the fact that the inner cavities of the products are different in shape, the movable block is added and used reversely, the movable block is taken out to be the conventional first product body, and the movable block is put on to be the second product body.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

FIG. 1 is a schematic structural view of a combined V-process casting mold according to the present invention;

FIG. 2 is a schematic structural view of a combined V-process casting mold according to the present invention;

FIG. 3 is a schematic structural view of a combined V-process casting mold according to the present invention;

FIG. 4 is a schematic structural view of a combined V-process casting mold according to the present invention;

in the figure: 1. vacuum casting a sand box; 2. a mold; 3. an inner cavity of the mold; 4. a first product body; 5. a second product body; 8. a loose block; 9. a sidewall of the inner chamber; 10. a pouring gate; 11. a metal liquid; 12. a round tube vacuum channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model discloses a combined V-method casting mold, which comprises a vacuum casting sand box 1, a mold 2, a mold inner cavity 3, a first product body 4, a second product body 5, a movable block 8, an inner cavity side wall 9, a pouring gate 10, a metal liquid 11 and a circular tube vacuum channel 12.

As shown in fig. 1, the present embodiment provides a combined V-process casting mold, which is characterized in that: the first product body 4 and the second product body 5 are identical in external front shape and different in inner cavity shape, the mold 2 is placed inside the vacuum casting sand box 1, the mold 2 is formed by combining a left mold and a right mold, and pouring gates 10 are formed in the upper sides of the left mold and the right mold of the mold 2.

As shown in fig. 1, the present embodiment provides a combined V-process casting mold, which is characterized in that: the shape and size of a mold inner cavity 3 formed after the left mold and the right mold of the mold 2 are matched with those of a first product body 4 and a second product body 5 of a prefabricated casting.

As shown in fig. 2 to 3, the present embodiment provides a combined V-process casting mold, which is characterized in that: the mould inner chamber 3 is inside to be provided with loose piece 8, mould inner chamber 3 is provided with inner chamber lateral wall 9, the whole shape of outside of loose piece 8 sets up according to first product body 4 and the different departments of 5 inner chamber shapes of second product body, the outside lateral wall and the 9 looks butt of inner chamber lateral wall of loose piece 8, loose piece 8 is for dismantling the connection.

As shown in fig. 2 to 3, the present embodiment provides a combined V-process casting mold, which is characterized in that: the shape and the size of the inner cavity 3 of the mold with the loose piece 8 are the same as those of the inner cavity of the second product body 5 of the casting, and the shape and the size of the inner cavity 3 of the mold without the loose piece 8 are the same as those of the inner cavity of the first product body 4.

As shown in fig. 4, the present embodiment provides a combined V-process casting mold, which is characterized in that: the vacuum casting sand box 1 is made of cast iron, the vacuum casting sand box is arranged in a vacuum casting sand box mode, a round sand shooting opening is formed in the top face of the vacuum casting sand box, and a round pipe vacuum channel 12 is formed in the front side face of the vacuum casting sand box.

The utility model has the following use process: when the movable block type die is used, due to the fact that the shapes of the inner cavities of the first product body 4 and the second product body 5 are different, a group of movable blocks 8 are additionally arranged in the die inner cavity 3 of the die 2, the external overall shapes of the movable blocks 8 are arranged according to the different shapes of the inner cavities of the first product body 4 and the second product body 5, the external side walls of the movable blocks 8 are abutted with the side walls 9 of the inner cavities, and the movable blocks 8 are detachably connected. Therefore, when the first product body 4 and the second product body 5 which are different are cast, new molds do not need to be developed again, and the first product body 4 and the second product body 5 are cast by using the same set of molds together by additionally arranging the movable block 8, so that the production cost can be reduced.

In the utility model, when the first product body 4 is cast, the mold 2 is only needed to be placed in the vacuum casting sand box 1, the metal liquid 11 is added into the mold through the pouring port 10, and the template of the first product body 4 is manufactured after hardening, and similarly, when the second product body 5 is cast, the loose piece 8 is only needed to be placed in the mold 2, so that the outer side wall of the loose piece 8 is abutted to the inner cavity side wall 9, and the second product body 5 can be manufactured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A combined V-method casting mold comprises a vacuum casting sand box (1), a mold (2), a mold inner cavity (3), a first product body (4), a second product body (5), a movable block (8), an inner cavity side wall (9), a pouring gate (10), a metal liquid (11) and a circular tube vacuum channel (12); the method is characterized in that: the mould (2) is placed in the vacuum casting sand box (1), and the movable block (8) is arranged in the mould inner cavity (3).

2. The combined V-process casting mold according to claim 1, wherein: the outer front shapes of the first product body (4) and the second product body (5) are the same, the shapes of inner cavities are different, the mold (2) is formed by combining a left mold and a right mold, and pouring gates (10) are formed in the upper sides of the left mold and the right mold of the mold (2).

3. The combined V-process casting mold according to claim 1, wherein: the mould inner chamber (3) is provided with inner chamber lateral wall (9), the whole shape of outside of loose piece (8) sets up according to first product body (4) and the different departments of second product body (5) inner chamber shape, the outside lateral wall and the inner chamber lateral wall (9) looks butt of loose piece (8), loose piece (8) are for dismantling the connection.

4. The combined V-process casting mold according to claim 1, wherein: the shape and the size of the inner cavity of the die (3) with the movable block (8) are the same as those of the inner cavity of the second product body (5), and the shape and the size of the inner cavity of the die (3) without the movable block (8) are the same as those of the inner cavity of the first product body (4).

5. The combined V-process casting mold according to claim 1, wherein: the vacuum casting sand box (1) is made of cast iron, the vacuum casting sand box (1) is arranged in a vacuum casting sand box mode, a round sand shooting opening is formed in the top face of the vacuum casting sand box (1), and a round pipe vacuum channel (12) is formed in the front side face of the vacuum casting sand box (1).