阅读说明：本技术 一种铸造脱模喷涂装置及其喷涂工艺 (Casting demolding spraying device and spraying process thereof ) 是由 周飞 张亮 于 2020-07-09 设计创作，主要内容包括：本发明属于铸造生产技术领域,具体涉及一种铸造脱模喷涂装置及其喷涂工艺,包括底座、第一机械臂、第二机械臂、空气增压室和喷涂喷头,所述第一机械臂安装在所述底座的上方,所述第一机械臂的上下两端分别设有第一转向电机和第二转向电机,所述第一机械臂通过所述第一转向电机与所述底座传动连接,所述第二机械臂安装在所述第一机械臂的上方；设置可以喷涂脱膜液、脱模剂和空气的喷涂喷头,通过喷涂的先后顺序,先喷涂脱膜液,然后利用空气进行喷涂,使其快速干燥冷却形成一层薄膜,由此可以使薄膜上均匀的粘附脱模剂,减少薄厚不均的情况出现,在铸造浇筑液体金属时,可以降低铸件成型后次品率,且更容易脱模和清理模具。(The invention belongs to the technical field of casting production, and particularly relates to a casting demolding spraying device and a spraying process thereof, wherein the casting demolding spraying device comprises a base, a first mechanical arm, a second mechanical arm, an air pressurizing chamber and a spraying nozzle, the first mechanical arm is arranged above the base, the upper end and the lower end of the first mechanical arm are respectively provided with a first steering motor and a second steering motor, the first mechanical arm is in transmission connection with the base through the first steering motor, and the second mechanical arm is arranged above the first mechanical arm; the spraying nozzle capable of spraying the stripping liquid, the release agent and the air is arranged, the stripping liquid is sprayed firstly through the spraying sequence, then the air is used for spraying, and the film is quickly dried and cooled to form a layer of film, so that the release agent can be uniformly adhered to the film, the condition that the film thickness is uneven is reduced, the defective rate of a cast after molding can be reduced when liquid metal is cast, and the mold is easier to demould and clean.)

1. The utility model provides a casting drawing of patterns spraying device which characterized in that: comprises a base (1), a first mechanical arm (2), a second mechanical arm (3), an air plenum chamber (4) and a spraying nozzle (5), wherein the first mechanical arm (2) is arranged above the base (1), a first steering motor (21) and a second steering motor (22) are respectively arranged at the upper end and the lower end of the first mechanical arm (2), the first mechanical arm (2) is in transmission connection with the base (1) through the first steering motor (21), the second mechanical arm (3) is arranged above the first mechanical arm (2), the second mechanical arm (3) is in transmission connection with the first mechanical arm (2) through the second steering motor (22), a feeding bin (31) is arranged at one end, close to the first mechanical arm (2), of the second mechanical arm (3), one end, far away from the feeding bin (31), is provided with an end rotating joint (32), air plenum chamber (4) are installed the below of end revolute joint (32), spraying shower nozzle (5) are installed to the output of air plenum chamber (4), spraying shower nozzle (5) are including shower nozzle mount pad (51) and end cover (52), be equipped with air nozzle (521), stripper nozzle (522) and release agent spout (523) on end cover (52), air nozzle (521) with air plenum chamber (4) pneumatic connection, stripper nozzle (522) and release agent spout (523) with add feed bin (31) and connect.

2. A casting pattern release coating apparatus as defined in claim 1, wherein: the inner part of the spray head mounting seat (51) and the inner wall of the end cover (52) are provided with a release agent conveying pipe (53), a release agent conveying pipe (54) and an air conveying pipe (55), the release agent conveying pipe (53) is communicated with the release agent nozzle (523), the release agent conveying pipe (54) is communicated with the release agent nozzle (522), and the air conveying pipe (55) is communicated with the air nozzle (521).

3. A casting pattern release coating apparatus as defined in claim 2, wherein: and the feeding bin (31) is provided with two feeding ports and two storage cavities, and the two storage cavities are respectively communicated with the release agent conveying pipe (53) and the release agent conveying pipe (54) through hoses.

4. A casting pattern release coating apparatus as defined in claim 2, wherein: an air pump is arranged in the air pressurizing chamber (4), and the air pump is connected with the air conveying pipe (55) in a sealing mode through a hose.

5. A casting pattern release coating apparatus as defined in claim 1, wherein: the outer wall of the spray head mounting seat (51) is provided with a sunken part (511) distributed around the outer wall of the spray head mounting seat.

6. A casting pattern release coating apparatus as defined in claim 1, wherein: the air nozzle (521) is positioned on the inner side of the membrane removing liquid nozzle (522), the membrane removing liquid nozzle (522) is positioned on the inner side of the release agent nozzle (523), and the end cover (52) is of a convex cambered surface structure.

7. A casting mold release spray coating process using the casting mold release spray coating device according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:

step S1, adding demolding liquid and demolding agent into the feed bin of the feeding bin (31), and covering a sealing cover;

step S2, the first mechanical arm (2), the second mechanical arm (3), the first steering motor (21), the second steering motor (22), the end head rotating joint (32) and the rotary seat (41) at the connection position are used for enabling the spraying nozzle (5) to move into a cavity of the mold;

step S3, firstly, pressurizing demolding liquid by using a booster pump in the second mechanical arm (3) to spray the demolding liquid to the interior of the mold, spraying the demolding liquid from a demolding liquid nozzle (522), after the spraying is finished, pumping air from an air nozzle (521) by using an air pump in the air booster chamber (4), purging the inner wall of the sprayed demolding liquid, then pressurizing the demolding agent by using the booster pump in the second mechanical arm (3), spraying the demolding agent from the demolding agent nozzle (523), and uniformly spraying the demolding agent on the inner wall of the mold;

and step S4, pouring the melted metal solution into a mold, and cooling and molding.

8. A casting release spray process according to claim 7, wherein: in step S3, the air pumped out of the air jets (521) is preheated to 40-50 degrees celsius.

Technical Field

The invention belongs to the technical field of casting production, and particularly relates to a casting demolding spraying device and a spraying process thereof.

Background

Casting is a method in which liquid metal is cast into a casting cavity that conforms to the shape of a part, and after it is cooled and solidified, a part or a blank is obtained. In the casting production process, the metal raw material needs to be heated and melted firstly, and then the metal solution is cast into a casting cavity formed by two casting molds. And after the metal solution is formed in the casting cavity, the casting mold is separated, and the casting mold is taken out. After an element which is just cast and molded is taken out of a mold, residual waste liquid is often left in the mold, so that the interior of the mold needs to be cleaned, and meanwhile, in order to facilitate the cast element in the mold to be separated from the mold, a mold release agent is often sprayed in a mold forming cavity.

However, after the mold release liquid is sprayed, the mold release liquid can be adhered to the inner wall of the mold and is not uniform enough, and when the mold release liquid is sprayed, local materials are not uniform enough, so that the mold release process after the mold is formed is not smooth enough, and the condition that the casting is defective is caused.

Disclosure of Invention

The invention provides a casting demolding spraying device and a spraying process thereof, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a casting demolding spraying device and a spraying process thereof comprise a base, a first mechanical arm, a second mechanical arm, an air pressurizing chamber and a spraying nozzle, wherein the first mechanical arm is arranged above the base, a first steering motor and a second steering motor are respectively arranged at the upper end and the lower end of the first mechanical arm, the first mechanical arm is in transmission connection with the base through the first steering motor, the second mechanical arm is arranged above the first mechanical arm, the second mechanical arm is in transmission connection with the first mechanical arm through the second steering motor, a charging bin is arranged at one end, close to the first mechanical arm, of the second mechanical arm, an end rotating joint is arranged at one end, far away from the charging bin, of the second mechanical arm, the air pressurizing chamber is arranged below the end rotating joint, and the spraying nozzle is arranged at the output end of the air pressurizing chamber, the spraying nozzle comprises a nozzle mounting seat and an end cover, wherein an air nozzle, a membrane removal nozzle and a release agent nozzle are arranged on the end cover, the air nozzle is pneumatically connected with the air pressurizing chamber, and the membrane removal nozzle and the release agent nozzle are connected with the feeding bin.

Preferably, a release agent conveying pipe and an air conveying pipe are arranged inside the spray head mounting seat and on the inner wall of the end cover, the release agent conveying pipe is communicated with the release agent nozzle, and the air conveying pipe is communicated with the air nozzle.

Preferably, be equipped with two charge inlets and two storage cavities on the reinforced storehouse, two store up the cavity respectively with release agent conveyer pipe and drawing of patterns liquid conveyer pipe pass through the hose intercommunication.

Preferably, an air pump is arranged in the air pressurizing chamber, and the air pump is connected with the air delivery pipe in a sealing mode through a hose.

Preferably, the outer wall of the nozzle mounting seat is provided with a concave part distributed around the outer wall of the circumference of the nozzle mounting seat.

Preferably, the air nozzle is positioned on the inner side of the membrane removing liquid nozzle, the membrane removing liquid nozzle is positioned on the inner side of the release agent nozzle, and the end cover is of a convex cambered surface structure.

A casting demolding spraying process utilizes the casting demolding spraying device of the scheme, and comprises the following steps:

step S1, adding demolding liquid and demolding agent into the feed bin of the feeding bin, and covering a sealing cover;

step S2, the first mechanical arm, the second mechanical arm, the first steering motor, the second steering motor, the end head rotating joint and the rotating seat at the connection position are used for enabling the spraying nozzle to move into a cavity of the mold;

step S3, firstly, pressurizing the demolding liquid by using a booster pump in the second mechanical arm, spraying the demolding liquid into the mold, spraying the demolding liquid from a demolding liquid nozzle, after spraying is finished, pumping air from an air nozzle by using an air pump in an air pressurizing chamber, purging the inner wall of the demolding liquid after spraying is finished, then pressurizing the demolding agent by using the booster pump in the second mechanical arm, and spraying the demolding agent from the demolding liquid nozzle to uniformly sprinkle the demolding agent on the inner wall of the mold;

and step S4, pouring the melted metal solution into a mold, and cooling and molding.

Preferably, in step S3, the air pumped out of the air jets is preheated to 40-50 degrees celsius.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the spraying nozzles capable of spraying the stripping liquid, the release agent and the air are arranged, the stripping liquid is sprayed firstly and then the air is used for spraying, so that the stripping liquid is quickly dried and cooled to form a layer of film, the release agent can be uniformly adhered to the film, the condition of uneven thickness is reduced, the defective rate of a cast after molding can be reduced when liquid metal is cast, and the mold is easier to demold and clean.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

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

FIG. 3 is a schematic structural view of the spray head of the present invention;

fig. 4 is a schematic view of the internal structure of the spray head of the present invention.

In the figure: 1. a base; 2. a first robot arm; 21. a first steering motor; 22. a second steering motor; 3. a second mechanical arm; 31. a feeding bin; 32. an end head rotating joint; 4. an air plenum; 41. rotating; 5. spraying a spray head; 51. a nozzle mounting base; 511. a recessed portion; 52. an end cap; 521. an air jet; 522. a film removing liquid nozzle; 523. a release agent nozzle; 53. a delivery pipe for release agent; 54. a demoulding liquid conveying pipe; 55. an air delivery pipe.

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: a casting demolding spraying device and a spraying process thereof comprise a base 1, a first mechanical arm 2, a second mechanical arm 3, an air pressurizing chamber 4 and a spraying nozzle 5, wherein the first mechanical arm 2 is arranged above the base 1, a first steering motor 21 and a second steering motor 22 are respectively arranged at the upper end and the lower end of the first mechanical arm 2, the first mechanical arm 2 is in transmission connection with the base 1 through the first steering motor 21, the second mechanical arm 3 is arranged above the first mechanical arm 2, the second mechanical arm 3 is in transmission connection with the first mechanical arm 2 through the second steering motor 22, a feeding bin 31 is arranged at one end, close to the first mechanical arm 2, of the second mechanical arm 3, an end rotating joint 32 is arranged at one end, far away from the feeding bin 31, of the second mechanical arm 3, the air pressurizing chamber 4 is arranged below the end rotating joint 32, the spraying nozzle 5 is arranged at the output end of the air pressurizing chamber 4, the spraying nozzle 5 comprises a nozzle mounting base 51 and an end cover 52, an air nozzle 521, a membrane removing nozzle 522 and a release agent nozzle 523 are arranged on the end cover 52, the air nozzle 521 is pneumatically connected with the air plenum chamber 4, and the membrane removing nozzle 522 and the release agent nozzle 523 are connected with the feeding bin 31.

Specifically, a release agent delivery pipe 53, a release agent delivery pipe 54 and an air delivery pipe 55 are arranged inside the spray head mounting seat 51 and on the inner wall of the end cover 52, the release agent delivery pipe 53 is communicated with a release agent nozzle 523, the release agent delivery pipe 54 is communicated with a release agent nozzle 522, and the air delivery pipe 55 is communicated with an air nozzle 521.

Specifically, the feeding bin 31 is provided with two feeding ports and two storage cavities, the two storage cavities are respectively communicated with the release agent delivery pipe 53 and the release agent delivery pipe 54 through hoses, and the release agent are respectively added into the two storage cavities.

Specifically, the air pump is arranged in the air pressurizing chamber 4, the air pump is connected with the air delivery pipe 55 in a sealing mode through a hose, and the air pump can suck air and pressurize the air so as to achieve high-speed air flow at the injection position.

Specifically, the outer wall of the nozzle mounting seat 51 is provided with a recessed portion 511 distributed around the outer wall of a circumference thereof.

Specifically, the air nozzle 521 is located on the inner side of the membrane removing nozzle 522, the membrane removing nozzle 522 is located on the inner side of the release agent nozzle 523, the end cover 52 is of a convex arc-shaped structure, and the membrane removing nozzle 522 and the release agent nozzle 523 can spray in a scattered manner through the design of the arc-shaped structure, so that a good spraying effect is achieved.

A casting demolding spraying process utilizes the casting demolding spraying device of the scheme, and comprises the following steps:

step S1, adding demolding liquid and demolding agent into the feed bin of the feeding bin 31, and covering a sealing cover;

step S2, the first mechanical arm 2, the second mechanical arm 3, the first steering motor 21, the second steering motor 22, the end head rotating joint 32 and the rotary seat 41 at the connection part are used for enabling the spraying nozzle 5 to move into the cavity of the mould;

step S3, firstly, pressurizing the demolding liquid by using a booster pump in the second mechanical arm 3, spraying the demolding liquid into the mold, spraying the demolding liquid from a demolding liquid nozzle 522, after the spraying is finished, pumping air from an air nozzle 521 by using an air pump in an air pressurizing chamber 4, purging the inner wall of the demolding liquid after the spraying is finished, then pressurizing the demolding liquid by using the booster pump in the second mechanical arm 3, and spraying the demolding liquid from a demolding liquid nozzle 523 to uniformly sprinkle the demolding liquid on the inner wall of the mold;

and step S4, pouring the melted metal solution into a mold, and cooling and molding.

Specifically, in step S3, the air pumped from the air outlet 521 is preheated to 40-50 ℃, and the heated air can facilitate the rapid drying of the stripping solution on the inner wall of the mold, so as to form a thin stripping solution layer.

The working principle and the using process of the invention are as follows: adding a demolding liquid and a demolding agent into a bin of the feeding bin 31, and covering a sealing cover; the spraying nozzle 5 is moved into the cavity of the mould by utilizing the first mechanical arm 2, the second mechanical arm 3, the first steering motor 21, the second steering motor 22, the end head rotating joint 32 and the rotary seat 41 at the connection part; firstly, pressurizing demolding liquid by using a booster pump in the second mechanical arm 3, spraying the demolding liquid to the interior of the mold, spraying the demolding liquid from a demolding liquid nozzle 522, pumping air from an air nozzle 521 by using an air pump in an air pressurizing chamber 4 after spraying is finished, purging the inner wall of the sprayed demolding liquid, then pressurizing the demolding agent by using the booster pump in the second mechanical arm 3, and spraying the demolding agent from a demolding agent nozzle 523 to uniformly spray the demolding agent on the inner wall of the mold; and pouring the molten metal solution into a mold, and cooling and forming.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.