Metal surface spraying machine

Abstract

The utility model discloses a metal surface spraying machine, which relates to the technical field of metal processing, and is characterized in that a corner spraying mechanism comprises a threaded seat, one side of the threaded seat is connected with two groups of mounting plates, one side of one group of mounting plates is connected with a second motor, and an output shaft of the second motor penetrates through the mounting plates and is connected with a rotating shaft; the spraying device has the advantages that the second motor can be controlled to drive the rotating shaft to rotate, the corner spray gun is driven to rotate, transverse corners in a cavity of a machined part are sprayed, the side face spray gun inclined at a certain angle can spray the side face of the machined part, and the side face spray gun can spray the side face of the machined part; the spraying device is simple in structure and capable of spraying the longitudinal corners in the cavities of the machined parts, so that the problems that only metal plates in neat shapes can be sprayed, and when the cavities exist in the machined parts, the corners in the cavities are not sprayed with powder through machining of an existing device are solved.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and more specifically, to a metal surface spraying machine. Background Technology

[0002] Metal surface spraying machines are widely used equipment in the metal processing industry. They spray paint or powder materials onto the surface of workpieces to achieve multiple purposes such as cleaning, polishing, improving surface quality, and enhancing adhesion. Depending on the spraying medium, spraying machines can be broadly classified into liquid spraying machines, powder spraying machines, and electrostatic spraying machines. Liquid spraying machines are typically used for coating operations, while powder spraying machines are used for electrostatic powder coating, particularly suitable for coating non-volatile paints. Electrostatic spraying machines utilize electrostatic force to attract paint to the workpiece surface, suitable for fine coating operations.

[0003] Electrostatic spraying equipment typically consists of an electrostatic generator, spray gun, powder tank, powder hose, and gun cable. Applying a DC high voltage between the grounded workpiece and the spray gun generates an electrostatic field. When negatively charged paint particles are sprayed onto the workpiece, they collide with each other and adhere evenly to the workpiece surface. Paint micromaterials scattered near the workpiece remain within the electrostatic field's influence, surrounding the workpiece and perfectly covering all its surfaces.

[0004] Most existing electrostatic spraying machines are handheld, requiring manual operation to hold the spray gun and spray the surface of the workpiece. A few use fixed spray gun positions within the housing, where the workpiece is sprayed as it passes by. However, manual spraying requires prolonged hand-holding of the spray gun and constant arm movement, necessitating frequent breaks and reducing efficiency. Furthermore, the sprayed powder can be inhaled, posing a health hazard. While fixed spray gun positions eliminate manual operation and isolate the powder within the housing, existing devices can only coat precisely shaped metal sheets. When encountering workpieces with internal cavities, the corners within these cavities may not be coated with powder.

[0005] Therefore, in order to solve the above-mentioned technical problems, this application proposes a metal surface spraying machine. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a metal surface spraying machine.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a metal surface spraying machine includes a shell and processing parts, wherein four sets of hollow shells with one side open are symmetrically connected to both sides of the inner wall of the shell;

[0008] The corner spraying mechanism is located inside the housing and is used to spray the corners inside the cavity of the workpiece.

[0009] The lifting mechanism, located inside the housing, is used to move the corner spraying mechanism up and down.

[0010] The corner spraying mechanism includes a threaded seat, with two sets of mounting plates connected to one side of the threaded seat. A second motor is connected to one side of one set of mounting plates. The output shaft of the second motor passes through the mounting plate and connects to a rotating shaft. The two ends of the rotating shaft are rotatably connected to the mounting plates. A corner spray gun is connected to the outer surface of the rotating shaft. Four sets of mounting components are symmetrically connected to both sides of the inner wall of the housing. Multiple sets of side spray guns at a certain angle are connected to one side of each of the four sets of mounting components.

[0011] Preferably, the lifting mechanism includes a first motor, one end of which is connected to the housing, the output shaft of which passes through the housing and is connected to one end of a screw, the other end of which is mounted inside the housing via a bearing, and the outer surface of the screw is threadedly connected to a threaded seat.

[0012] Preferably, the top of the inner wall of the outer casing is connected to a top spray gun at a certain angle via a mounting base to spray the top of the workpiece.

[0013] Preferably, a sliding track is connected to the top of the inner wall of the outer shell, and a moving device is provided in the sliding track. The moving device is connected to a connecting member, and one end of the connecting member is connected to a workpiece, which drives the workpiece to move inside the outer shell to perform full coating on the workpiece.

[0014] Preferably, the outer casing is provided with a recovery device for recovering powder that has not been adsorbed onto the workpiece.

[0015] Preferably, one end of an electric telescopic rod is connected to the bottom of the inner wall of the outer casing, and the other end of the electric telescopic rod is connected to a bottom spray gun. The height of the electric telescopic rod is adjusted according to the height of the workpiece so that the bottom spray gun can spray the bottom of the workpiece.

[0016] Preferably, the inlets of the corner spray gun, side spray gun, top spray gun, and bottom spray gun are all connected to the powder cylinder via powder pipes, and the input ends of the corner spray gun, side spray gun, top spray gun, and bottom spray gun are all connected to the electrostatic generator via gun wires.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting up a corner spraying mechanism, the second motor can drive the rotating shaft to rotate, which in turn drives the corner spray gun to rotate, spraying the transverse corners inside the cavity of the workpiece. The side spray gun, which is tilted at a certain angle, can not only spray the sides of the workpiece, but also the longitudinal corners inside the cavity of the workpiece. This solves the problem that it can only spray neatly shaped metal sheets. When the workpiece has a cavity, the existing device will not spray the corners inside the cavity with powder.

[0019] 2. By setting up a lifting mechanism, the screw can be rotated by controlling the first motor, which in turn moves the threaded seat up and down, adjusting the height of the corner spraying mechanism, thereby enabling spraying of the corners of the cavities of workpieces of different sizes.

[0020] 3. By setting up an electric telescopic rod and a bottom spray gun, the height of the electric telescopic rod can be adjusted according to the different heights of the workpiece, so that the bottom spray gun can spray the bottom of the workpiece. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the electric telescopic rod in this utility model;

[0024] Figure 3 This is a schematic diagram of the side spray gun in this utility model;

[0025] Figure 4 This is a schematic diagram of the corner spray gun in this utility model;

[0026] 1. Casing; 2. Sliding rail; 3. Mounting component; 4. Connecting component; 5. Machined component; 6. Top spray gun; 7. Electric telescopic rod; 8. Bottom spray gun; 9. Side spray gun; 10. First motor; 11. Casing; 12. Rotating shaft; 13. Second motor; 14. Bearing; 15. Threaded seat; 16. Mounting plate; 17. Corner spray gun; 18. Screw. Detailed Implementation

[0027] like Figure 1 - Figure 4 As shown, this utility model provides a metal surface spraying machine, including a shell 1 and a processing part 5. Four sets of hollow shells 11 with one side open are symmetrically connected to the inner wall of the shell 1.

[0028] The corner spraying mechanism is located inside the housing 1 and is used to spray the corners inside the cavity of the workpiece 5.

[0029] The lifting mechanism, located inside the housing 11, is used to drive the corner spraying mechanism to move up and down.

[0030] The corner spraying mechanism includes a threaded seat 15, with two sets of mounting plates 16 connected to one side of the threaded seat 15. A second motor 13 is connected to one side of one set of mounting plates 16. The output shaft of the second motor 13 passes through the mounting plate 16 and connects to a rotating shaft 12. The two ends of the rotating shaft 12 are rotatably connected to the mounting plates 16. A corner spray gun 17 is connected to the outer surface of the rotating shaft 12. Four sets of mounting parts 3 are symmetrically connected to both sides of the inner wall of the housing 11. Multiple sets of side spray guns 9 that are tilted at a certain angle are connected to one side of each of the four sets of mounting parts 3.

[0031] The top of the inner wall of the outer shell 1 is connected to a sliding rail 2. A moving device is provided inside the sliding rail 2. The moving device is connected to a connector 4. One end of the connector 4 is connected to a workpiece 5.

[0032] The top of the inner wall of the outer casing 1 is connected to a top spray gun 6 that is tilted at a certain angle via a mounting base;

[0033] One end of the electric telescopic rod 7 is connected to the bottom of the inner wall of the outer casing 1, and the other end of the electric telescopic rod 7 is connected to the bottom spray gun 8.

[0034] One end of the electric telescopic rod 7 is connected to the bottom of the inner wall of the outer casing 1, and the other end of the electric telescopic rod 7 is connected to the bottom spray gun 8.

[0035] The outer casing 1 is equipped with a recovery device for recovering powder that has not been adsorbed onto the workpiece;

[0036] The workpiece 5 to be coated is connected to the moving device via the connector 4 and slides within the sliding track 2. Workpieces with cavities typically have one side heavier, causing them to tilt at a certain angle. The second motor 13 drives the rotating shaft 12 to rotate, which in turn drives the corner spray gun 17. The spraying angle of the corner spray gun 17 is adjusted to accommodate different tilt angles of the workpiece 5. The corner spray gun 17 sprays the transverse corners within the cavity of the workpiece 5. The side spray gun 9, tilted at a certain angle, can spray not only the sides of the workpiece 5 but also the longitudinal corners within the cavity. The top spray gun 6 sprays the top of the workpiece 5. The height of the electric telescopic rod 7 is adjusted according to the height of the workpiece 5, allowing the bottom spray gun 8 to spray the bottom of the workpiece 5. Driven by the moving device, the spray gun passes through the outer shell 1, completing the overall surface coating of the workpiece 5. The recovery device collects the powder that was not adsorbed onto the workpiece. The moving device and recovery device are existing technologies and will not be described in detail here.

[0037] like Figure 4As shown, the lifting mechanism includes a first motor 10, one end of which is connected to the housing 11. The output shaft of the first motor 10 passes through the housing 11 and is connected to one end of a screw 18. The other end of the screw 18 is installed inside the housing 11 through a bearing 14. The outer surface of the screw 18 is threadedly connected to a threaded seat 15.

[0038] The first motor 10 can drive the screw 18 to rotate, which in turn drives the threaded seat 15 to move up and down, thereby adjusting the height of the corner spraying mechanism and enabling spraying of the corners of the cavities of different sized workpieces 5.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A metal surface spraying machine, characterized in that: It comprises a shell (1) and a processed part (5), wherein the inner wall of the shell (1) is symmetrically connected to two sides of four groups of shells (11) which are hollow inside and open on one side; A corner spraying mechanism, arranged inside the housing (1), for spraying the corners inside the cavity of the workpiece (5); A lifting mechanism, arranged inside the housing (11), for driving the corner spraying mechanism to move up and down; The corner spraying mechanism comprises a threaded seat (15), one side of the threaded seat (15) is connected to two groups of mounting plates (16), one side of one group of mounting plates (16) is connected to a second motor (13), an output shaft of the second motor (13) passes through the mounting plate (16) and is connected to a rotating shaft (12), both ends of the rotating shaft (12) are rotatably connected to the mounting plate (16), an outer surface of the rotating shaft (12) is connected to a corner spray gun (17), and four groups of mounting parts (3) are symmetrically connected to the inner wall of the shell (11) on both sides, and one side of the four groups of mounting parts (3) is connected to a plurality of side spray guns (9) inclined at a certain angle.

2. A metal surface spraying machine according to claim 1, characterized in that: The lifting mechanism comprises a first motor (10), one end of the first motor (10) is connected to a housing (11), an output shaft of the first motor (10) passes through one end of the housing (11) and is connected to one end of a screw rod (18), the other end of the screw rod (18) is installed inside the housing (11) via a bearing (14), and the outer surface of the screw rod (18) is threadedly connected to a threaded seat (15).

3. A metal surface spraying machine according to claim 2, characterized in that: The top of the inner wall of the shell (1) is connected to a top spray gun (6) inclined at a certain angle via a mounting seat.

4. A metal surface spraying machine according to claim 3, characterized in that: The top of the inner wall of the outer shell (1) is connected to a sliding track (2), a moving device is arranged inside the sliding track (2), the moving device is connected to a connecting piece (4), and one end of the connecting piece (4) is connected to a processing piece (5).

5. A metal surface spraying machine according to claim 4, characterized in that: A recovery device for recovering powder that is not adsorbed onto the workpiece is arranged inside the housing (1).

6. A metal surface spraying machine according to claim 5, characterized in that: The bottom of the inner wall of the housing (1) is connected to one end of an electric telescopic rod (7), and the other end of the electric telescopic rod (7) is connected to a bottom spray gun (8).

7. A metal surface spraying machine according to claim 6, characterized in that: The inlets of the corner spray gun (17), the side spray gun (9), the top spray gun (6) and the bottom spray gun (8) are all connected to the powder cylinder through the powder hose, and the input ends of the corner spray gun (17), the side spray gun (9), the top spray gun (6) and the bottom spray gun (8) are all connected to the electrostatic main machine through the gun line.

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