Casting coating spraying device and method

Abstract

The invention relates to the technical field of casting, in particular to a casting coating spraying device and method. The spraying device comprises a spraying box, the spraying box is of a hollow box body structure, and a feeding port is formed in a top plate of the spraying box; a lifting driving mechanism is arranged on the spraying box, and a clamping mechanism is mounted on the lifting driving mechanism; the lifting driving device is used for driving the clamping mechanism to do lifting motion and enter and exit from the spraying box from the feeding opening; a spraying assembly is arranged on the spraying box and comprises a spraying atomization head, and the spraying atomization head is located in an inner cavity of the spraying box. Due to the fact that the lifting driving device can drive the clamping mechanism to do lifting motion and enter and exit from the spraying box through the feeding port, the casting mold to be sprayed can be clamped outside the spraying box, and the problem that in the prior art, clamping operation in the spraying box is inconvenient is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of casting, and in particular to a casting coating spraying device and method. Background Art

[0002] In casting production, it is necessary to spray anti-stick coating or thermal insulation protective coating on the casting mold. The main reasons for using spray coating in the casting process are as follows: (1) Preventing mold sticking: During the casting process, applying a smooth coating can prevent the casting from sticking to the mold. This not only ensures the surface finish of the casting, but also reduces the risk of tearing and cracking of the casting. (2) Controlling temperature: During the casting process, the heat transfer between the casting and the molten metal will cause the casting to shrink unevenly, which is easy to cause deformation or cracks. Spray coating can control the temperature distribution of the casting, reduce thermal stress, and thus reduce the occurrence of casting defects. (3) Reducing volatile loss: During the casting process, volatiles in the molten metal are often one of the main causes of casting defects. Applying coating can reduce the loss of metal volatiles, making the casting surface smoother and less defective. (4) Ensuring casting quality: The use of coating can effectively prevent oxidation, adhesion and demolding of the casting surface, thereby ensuring the surface finish and overall quality of the casting.

[0003] The traditional spraying method is to spray by manual operation, but the manual spraying method has the problems of uneven spraying and low spraying efficiency. With the development of technology, patents such as publication number CN106938320A and announcement number CN220160322U both disclose casting coating spraying devices.

[0004] However, the spraying devices in the above CN106938320A and CN220160322U have the following problems:

[0005] (1) Before spraying, the casting mold to be sprayed needs to be clamped on a clamping device in the box. Since the clamping device is arranged inside the box, the internal space of the box is limited, so it is inconvenient to perform the clamping operation inside the box.

[0006] (2) After spraying, the sprayed casting mold needs to be removed from the clamping device. If the paint attached to the inner wall of the box is not dry, the paint is easy to stick to the operator when the operator operates inside the narrow box. Summary of the invention

[0007] The main purpose of the present invention is to provide a casting coating spraying device and method, aiming to solve the above technical problems.

[0008] To achieve the above-mentioned purpose, on the one hand, the present invention proposes a casting coating spraying device, comprising a spray box, which is a hollow box structure, and a feed inlet is opened on the top plate of the spray box; a lifting drive mechanism is arranged on the spray box, and a clamping mechanism is installed on the lifting drive device; the lifting drive device is used to drive the clamping mechanism to lift and lower and enter and exit the spray box from the feed inlet; a spray assembly is arranged on the spray box, and the spray assembly includes a spray atomizing head, and the spray atomizing head is located in the inner cavity of the spray box.

[0009] Preferably, the lifting drive mechanism includes a column, a motor and a screw; a vertical cavity is provided inside the column; the screw is installed in the vertical cavity; the motor is installed on the top of the column, and the upper end of the screw is connected to the output shaft of the motor; the clamping mechanism includes a clamping frame and a driving block integrally formed on the clamping frame; a vertical strip-shaped slide groove is provided on the front side of the column; the strip-shaped slide groove is connected to the vertical cavity; the driving block is slidably installed on the strip-shaped slide groove, and the driving block is sleeved on the screw and the two are threadedly matched.

[0010] Preferably, the lifting drive mechanism also includes a base, and the column is installed on the top surface of the base; the base is placed on the bottom wall of the inner cavity of the spray box; the column extends from the top plate of the spray box; the feed port is in the shape of a rectangular hole, and the column is located at the center of one of the long sides of the feed port.

[0011] Preferably, a placement platform is provided on the top surface of the base; the placement platform is located directly below the clamping frame.

[0012] Preferably, the clamping frame is a U-shaped frame structure, and a locking screw is screwed on one of the side plates of the clamping frame; the inner end of the locking screw extends into the U-shaped groove of the clamping frame, and a clamping plate is provided at the inner end of the locking screw.

[0013] Preferably, the spray assembly includes a paint tank, a pump body and the spray atomization head; liquid paint is contained inside the paint tank; a mounting seat is provided on the bottom wall of the paint tank; the mounting seat is inserted into the top plate of the spray box, and the pump body is installed inside the mounting seat; a pumping tube is connected to the inlet of the pump body, and the liquid inlet end of the pumping tube extends from the bottom wall of the paint tank into the inner cavity of the paint tank; the outlet of the pump body is connected to the spray atomization head through a pipeline.

[0014] Preferably, a movable frame is provided at the bottom of the mounting seat; the spray atomizing head is mounted on the movable frame via a rotating shaft, and the spray atomizing head can be rotated around the rotating shaft to adjust the pitch angle.

[0015] Preferably, the number of the spraying assemblies is two, and the two spraying assemblies are arranged in mirror symmetry.

[0016] Preferably, an observation window is provided on the front of the spray box.

[0017] On the other hand, the present invention also provides a casting coating spraying method, which uses the casting coating spraying device, comprising the following steps:

[0018] S1. Use the lifting drive mechanism to drive the clamping mechanism to rise so that the clamping mechanism is located above the spray box;

[0019] S2, clamping the casting mold to be sprayed on the clamping mechanism, and using the lifting drive mechanism to drive the clamping mechanism to descend, so that the clamping mechanism and the casting mold to be sprayed enter the inner cavity of the spray box from the feed inlet;

[0020] S3, spraying the casting mold using a spraying assembly;

[0021] S4, after spraying is completed, the lifting drive mechanism is used to drive the clamping mechanism to rise, so that the clamping mechanism and the casting mold after spraying are removed from the spray box from the inlet;

[0022] S5, removing the casting mold after spraying, repeating steps S1 to S4, and spraying another casting mold to be sprayed.

[0023] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0024] By adopting the casting coating spraying device provided by the present invention, since the lifting drive device can drive the clamping mechanism to lift and lower and enter and exit the spray box from the feed port, the clamping operation of the casting mold to be sprayed can be performed outside the spray box, effectively overcoming the problem of inconvenience in clamping operation inside the spray box in the prior art. After the spraying is completed, the sprayed casting mold is removed from the clamping device outside the spray box, effectively avoiding the problem that the coating is easily stained on the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of the casting coating spraying device provided by the present invention;

[0027] Figure 2 It is a side view of the lifting drive mechanism of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the clamping mechanism in the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the spraying assembly in the present invention.

[0030] Explanation of the accompanying drawings: 1. Spray box; 2. Observation window; 3. Feed port; 4. Lifting drive mechanism; 401. Base; 402. Column; 403. Motor; 404. Screw; 405. Vertical cavity; 406. Placement table; 407. Strip slide; 5. Clamping mechanism; 501. Clamping frame; 502. Drive block; 503. Locking screw; 504. Clamping plate; 6. Spraying assembly; 601. Paint tank; 602. Pump body; 603. Pumping tube; 604. Movable frame; 605. Spray atomizing head. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] As shown in the accompanying drawings, on the one hand, the present embodiment provides a casting coating spraying device, including a spray box 1, which is a hollow box structure, and a feed port 3 is opened on the top plate of the spray box 1; a lifting drive mechanism 4 is arranged on the spray box 1, and a clamping mechanism 5 is installed on the lifting drive device 4; the lifting drive device 4 is used to drive the clamping mechanism 5 to lift and move and enter and exit the spray box 1 from the feed port 3; a spray assembly 6 is arranged on the spray box 1, and the spray assembly 6 includes a spray atomizing head 605, and the spray atomizing head 605 is located in the inner cavity of the spray box 1.

[0034] Combination Figure 2 , Figure 3As shown, the lifting drive mechanism 4 includes a column 402, a motor 403 and a lead screw 404; a vertical cavity 405 is arranged inside the column 402; the lead screw 404 is installed in the vertical cavity 405; the motor 403 is installed at the top of the column 402, and the upper end of the lead screw 404 is connected to the output shaft of the motor 403; the clamping mechanism 5 includes a clamping frame 501 and a driving block 502 integrally formed on the clamping frame 501; a vertical strip-shaped slide 407 is arranged on the front of the column; the strip-shaped slide 407 is connected to the vertical cavity 405; the driving block 502 is slidably installed on the strip-shaped slide 407, and the driving block 502 is sleeved on the lead screw 404 and the two are threadedly matched. When in use, the lead screw 404 is driven to rotate by the motor 403, and then the driving block 502 can be driven to slide up and down in the strip-shaped slide 407, and then the entire clamping mechanism 5 can be driven to move up and down.

[0035] In order to ensure the stability of the lifting drive mechanism, the lifting drive mechanism also includes a base 401, and the column 402 is installed on the top surface of the base 401, and the base 401 plays a role in stabilizing the column 402. The base 401 is placed on the bottom wall of the inner cavity of the spray box 1; the column 402 extends from the top plate of the spray box 1; the feed inlet 3 is in the shape of a rectangular hole, and the column 402 is located at the center of one of the long sides of the feed inlet 3. Furthermore, a placement table 406 is provided on the top surface of the base 401; the placement table 406 is located directly below the clamping frame 501. When the lifting drive mechanism 4 drives the clamping mechanism 5 to descend, the casting mold to be sprayed clamped by the clamping mechanism 5 enters the interior of the spray box 1 from the feed inlet 3, and the placement table 406 is used to support the casting mold to be sprayed.

[0036] Combination Figure 3 As shown, the clamping frame 501 is a U-shaped frame structure, and a locking screw 503 is screwed on one of the side plates of the clamping frame 501; the inner end of the locking screw 503 extends into the U-shaped groove of the clamping frame 501, and a clamping plate 504 is provided at the inner end of the locking screw 503. When clamping the casting mold to be sprayed, the casting mold is placed in the U-shaped groove of the clamping frame 501, and the locking screw 503 is tightened to drive the clamping plate 504 to press against the casting mold, so that the casting mold can be fixed inside the clamping frame 501.

[0037] Combination Figure 4The spray assembly 6 comprises a paint tank 601, a pump body 602 and a spray atomizing head 605; liquid paint is contained in the paint tank 601; a mounting seat 605 is arranged on the bottom wall of the paint tank 601; the mounting seat 605 is inserted on the top plate of the spray box 1, and the pump body 602 is installed inside the mounting seat 605; a pumping tube 603 is connected to the inlet of the pump body 602, and the liquid inlet end of the pumping tube 603 extends from the bottom wall of the paint tank 601 into the inner cavity of the paint tank 601; the outlet of the pump body 602 is connected to the spray atomizing head 605 through a pipeline. Furthermore, a movable frame 604 is arranged at the bottom of the mounting seat 605; the spray atomizing head 605 is installed on the movable frame 604 through a rotating shaft, and the spray atomizing head 605 can rotate around the rotating shaft to adjust the pitch angle. The paint inside the paint tank 601 is sucked into the pumping tube 603 through the pump body 602, and the paint inside the pumping tube 603 flows to the spray atomizing head 605, and the spray atomizing head 605 sprays the paint to the casting mold to be sprayed.

[0038] In this embodiment, in order to improve the spraying efficiency, the number of the spraying components 6 is two, and the two spraying components 6 are arranged in a mirror-symmetrical manner.

[0039] Combination Figure 1 As shown, an observation window 2 is provided on the front of the spray box 1. The spraying situation inside the spray box 1 can be observed through the observation window 2.

[0040] On the other hand, this embodiment also provides a casting coating spraying method, using the casting coating spraying device described above, comprising the following steps:

[0041] S1. Using the lifting drive mechanism 4 to drive the clamping mechanism 5 to rise, so that the clamping mechanism 5 is located above the spray box 1;

[0042] S2, clamping the casting mold to be sprayed on the clamping mechanism 5, and using the lifting drive mechanism 4 to drive the clamping mechanism 5 to descend, so that the clamping mechanism 5 together with the casting mold to be sprayed enters the inner cavity of the spray box 1 from the feed port 3;

[0043] S3, spraying the casting mold using the spraying assembly 6;

[0044] S4, after spraying is completed, the lifting drive mechanism 4 is used to drive the clamping mechanism 5 to rise, so that the clamping mechanism 5 together with the casting mold after spraying is completed leaves the spray box 1 from the feed port 3;

[0045] S5, removing the casting mold after spraying, repeating steps S1 to S4, and spraying another casting mold to be sprayed.

[0046] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A casting coating spraying device, comprising a spray box (1), wherein the spray box (1) is a hollow box structure, characterized in that: A material inlet (3) is provided on the top plate of the spray box (1); A lifting drive mechanism (4) is provided on the spray box (1), and a clamping mechanism (5) is installed on the lifting drive mechanism (4); the lifting drive mechanism (4) is used to drive the clamping mechanism (5) to move up and down and enter and exit the spray box (1) from the feed port (3); A spraying assembly (6) is arranged on the spraying box (1), and the spraying assembly (6) comprises a spraying atomizing head (605). The spraying atomizing head (605) is located in the inner cavity of the spraying box (1).

2. A casting coating spraying device as claimed in claim 1, characterized in that: The lifting drive mechanism (4) comprises a column (402), a motor (403) and a lead screw (404); a vertical cavity (405) is arranged inside the column (402); the lead screw (404) is installed in the vertical cavity (405); the motor (403) is installed on the top of the column (402), and the upper end of the lead screw (404) is connected to the output shaft of the motor (403); The clamping mechanism (5) comprises a clamping frame (501) and a driving block (502) integrally formed on the clamping frame (501); a vertical strip-shaped slide groove (407) is provided on the front face of the column; the strip-shaped slide groove (407) is connected to the vertical cavity (405); the driving block (502) is slidably mounted on the strip-shaped slide groove (407), and the driving block (502) is sleeved on the lead screw (404) and the two are threadedly matched.

3. A casting coating spraying device as claimed in claim 2, characterized in that: The lifting drive mechanism also includes a base (401), and the column (402) is installed on the top surface of the base (401); the base (401) is placed on the bottom wall of the inner cavity of the spray box (1); the column (402) extends from the top plate of the spray box (1); the feed port (3) is in the shape of a rectangular hole, and the column (402) is located at the center of one of the long sides of the feed port (3).

4. A casting coating spraying device as claimed in claim 3, characterized in that: A placement platform (406) is provided on the top surface of the base (401); the placement platform (406) is located directly below the clamping frame (501).

5. A casting coating spraying device as claimed in claim 2, characterized in that: The clamping frame (501) is a U-shaped frame structure, and a locking screw (503) is screwed on one of the side plates of the clamping frame (501); the inner end of the locking screw (503) extends into the U-shaped groove of the clamping frame (501), and a clamping plate (504) is arranged on the inner end of the locking screw (503).

6. A casting coating spraying device as claimed in claim 1, characterized in that: The spraying assembly (6) comprises a paint tank (601), a pump body (602) and the spraying atomizing head (605); liquid paint is contained inside the paint tank (601); A mounting seat (605) is arranged on the bottom wall of the paint tank (601); the mounting seat (605) is inserted into the top plate of the spray box (1), and the pump body (602) is installed inside the mounting seat (605); a pumping tube (603) is connected to the inlet of the pump body (602), and the liquid inlet end of the pumping tube (603) extends from the bottom wall of the paint tank (601) into the inner cavity of the paint tank (601); the outlet of the pump body (602) is connected to the spray atomizing head (605) through a pipeline.

7. A casting coating spraying device as claimed in claim 6, characterized in that: A movable frame (604) is arranged at the bottom of the mounting seat (605); the spray atomizing head (605) is mounted on the movable frame (604) via a rotating shaft, and the spray atomizing head (605) can rotate around the rotating shaft to adjust the pitch angle.

8. A casting coating spraying device as claimed in claim 6, characterized in that: The number of the spraying components (6) is two, and the two spraying components (6) are arranged in a mirror-symmetrical manner.

9. A casting coating spraying device as claimed in claim 1, characterized in that: An observation window (2) is arranged on the front of the spray box (1).

10. A casting coating spraying method, characterized in that: The casting coating spraying device according to any one of claims 1 to 9 comprises the following steps: S1. Using the lifting drive mechanism (4) to drive the clamping mechanism (5) to rise, so that the clamping mechanism (5) is located above the spray box (1); S2. Clamp the casting mold to be sprayed on the clamping mechanism (5), and use the lifting drive mechanism (4) to drive the clamping mechanism (5) to descend, so that the clamping mechanism (5) and the casting mold to be sprayed enter the inner cavity of the spray box (1) from the feed inlet (3); S3, spraying the casting mold using a spraying assembly (6); S4, after the spraying is completed, the lifting drive mechanism (4) is used to drive the clamping mechanism (5) to rise, so that the clamping mechanism (5) and the casting mold after the spraying are completed leave the spraying box (1) from the feed port (3); S5, removing the casting mold after spraying, repeating steps S1 to S4, and spraying another casting mold to be sprayed.

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