Rotary spray gun for spraying battery case with self-cleaning function

Abstract

The utility model relates to spraying equipment technical field, concretely is the rotating spray gun with self -cleaning function for battery shell spraying, include: the casing, the casing includes the protection cylinder, the protection cylinder front side is equipped with the cover, the protection cylinder middle is equipped with the spray gun subassembly, the cover middle part is equipped with the cleaning subassembly, and the cleaning subassembly is used for cleaning the spray gun end residual coating. The utility model, utilize power source work, drive spray gun rotation through synchronous belt drive structure, can realize rotary spraying, utilize second power source work, can drive the rotation of the rotating block, thereby utilize the rotating block and block the air cap discharge port, avoid dripping, through setting up the air channel, utilize the air channel alignment nozzle discharge port, and utilize the negative pressure pipe suction, can realize the cleaning of residual material.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, specifically a rotary spray gun for spraying battery casings with a self-cleaning function. Background Technology

[0002] Against the backdrop of the rapid development of the new energy vehicle and energy storage industries, the battery casing, as the core protective component of power batteries, directly affects the safety and lifespan of the battery pack due to the uniformity, adhesion, and corrosion resistance of its surface coating.

[0003] Because the battery casing has a complex and asymmetrical shape, it is not suitable for a rotary spray booth. A rotating spray gun is required for the internal corners. Traditional rotary spray guns do not have a self-cleaning mechanism, which can easily cause dripping after painting, resulting in uneven paint and affecting the painting effect. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rotary spray gun for battery casing spraying with a self-cleaning function.

[0005] The technical solution of this utility model is:

[0006] A rotary spray gun for coating battery casings with a self-cleaning function includes: The housing (1) includes a protective cylinder (11), a cover (14) is provided on the front side of the protective cylinder (11), and a spray gun assembly (2) is provided inside the protective cylinder (11). The spray gun assembly (2) includes a spray gun, which is axially rotatably mounted inside a protective cylinder (11); the spray gun includes a gun body (21), the head of which is threadedly connected to an air cap (22), the outer diameter of which is larger than that of the gun body (21), the air cap (22) is arranged outside the cover (14), and the air cap (22) has an angled air hole on only one side; the head of the gun body (21) penetrates the cover (14) and extends to the outside of the cover; A drive assembly is provided between the protective cylinder (11) and the cover (14), and the drive assembly is used to drive the spray gun to rotate. The cover (14) is equipped with a cleaning component (3), which includes a second power source (31), a drive shaft (32), a rotating block (33) and a negative pressure pipe (35). The second power source (31) is fixedly installed inside the cover (14) and located above the gun body (21). The output shaft of the second power source (31) passes through the cover (14) and is connected to the rotating block (33) through the transmission shaft (32). The rotating block (33) has an air passage (34) inside. The end of the air passage (34) can cover the discharge port of the air cap (22). The top of the air passage (34) is connected to the negative pressure pipe (35). The negative pressure pipe (35) passes through the cover (14) and the protective cylinder (11) and extends into the interior of the protective cylinder (11).

[0007] Preferably, an installation sleeve (12) is fixedly provided inside the protective sleeve (11), and a rotating element (13) is provided inside the installation sleeve (12). The gun body (21) rotates and engages with the installation sleeve (12) through the rotating element (13).

[0008] Preferably, the drive assembly includes a first power source (23), which is mounted above the mounting sleeve (12). The output shaft of the first power source (23) passes through the protective sleeve (11) and is connected to the gun body (21) via a synchronous belt drive structure.

[0009] Preferably, when the rotating block (33) rotates downward to a vertical position, the inner side of the rotating block (33) abuts against the end face of the air cap (22), and the lower part of the rotating block (33) covers the outlet of the air cap (22).

[0010] Preferably, when the rotating block (33) covers the outlet of the air cap (22), the end of the air passage (34) is aligned with the outlet.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a power source to drive the spray gun to rotate via a synchronous belt drive structure, enabling rotary spraying. A second power source drives a rotating block to block the air cap outlet, preventing leakage. An air passage is provided, aligned with the nozzle outlet, and a negative pressure pipe is used for suction, achieving the cleaning of residual materials. Attached Figure Description

[0012] Figure 1 This is a first schematic diagram of the overall structure of this utility model; Figure 2 This is a second schematic diagram of the overall structure of this utility model; Figure 3 This is a first cross-sectional view of the overall structure of this utility model; Figure 4 This is a second cross-sectional view of the overall structure of this utility model; Figure 5 This is a third cross-sectional view of the overall structure of this utility model.

[0013] The meanings of the labels in the diagram are as follows: 1. Housing; 11. Protective sleeve; 12. Mounting sleeve; 13. Rotating element; 14. Cover; 15. Mounting base; 2. Spray gun assembly; 21. Gun body; 22. Air cap; 23. Primary power source; 24. Drive pulley; 25. Driven pulley; 26. Synchronous belt; 3. Cleaning components; 31. Second power source; 32. Drive shaft; 33. Rotating block; 34. Air passage; 35. Negative pressure pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: Please see Figure 1-5 The present invention will describe the above technical solution in detail through the following embodiments: A rotary spray gun for coating battery casings with a self-cleaning function includes: The housing 1 includes a protective cylinder 11, a cover 14 on the front side of the protective cylinder 11, a spray gun assembly 2 in the middle of the protective cylinder 11, the spray gun assembly 2 including a spray gun, the spray gun is axially rotatably installed in the protective cylinder 11, the head of the spray gun extends through the cover 14 to the outside, a drive assembly is provided between the protective cylinder 11 and the cover 14, the drive assembly is used to drive the spray gun to rotate, the rotation angle is ±180°, a cleaning assembly 3 is provided in the middle of the cover 14, the cleaning assembly 3 is used to clean the residual paint at the end of the spray gun.

[0016] A mounting base 15 is welded to the bottom of the outer side of the protective cylinder 11. The mounting base 15 is used to connect with moving parts such as robotic arms, so that the moving parts can drive the protective cylinder 11 to move, thereby driving the spray gun assembly 2 to move.

[0017] A mounting sleeve 12 is welded inside the protective sleeve 11. A rotating element 13 is provided inside the mounting sleeve 12. The spray gun is rotatably connected to the mounting sleeve 12 through the rotating element 13.

[0018] The rotating element 13 can be a bearing, and the rotating element 13 is used to facilitate the rotation of the spray gun.

[0019] The spray gun includes a gun body 21, and a gas cap 22 is threadedly connected to the head of the gun body 21. The outer diameter of the gas cap 22 is larger than that of the gun body 21. The gas cap 22 is located outside the cover 14, and the gas cap 22 has an angled air hole on only one side.

[0020] The gun body 21 is interference-fitted with the rotating element 13.

[0021] The air cap 22 can use compressed air to limit the spray width of the spray gun. Compared with the symmetrical angle air holes, the atomized paint will be shifted to the side without angle air holes. It can spray the spray surface even when the spray gun is not perpendicular to the spray surface. At this time, rotating the spray gun can spray the inside corner.

[0022] The drive assembly includes a first power source 23, which is mounted above the mounting sleeve 12. The output shaft of the first power source 23 passes through the protective sleeve 11 and is connected to the gun body 21 via a synchronous belt drive structure.

[0023] The first power source 23 uses a known motor, and the synchronous belt drive structure includes a driving pulley 24 and a driven pulley 25. The driving pulley 24 is engaged with the output shaft of the first power source 23, and the driven pulley 25 is connected to the gun body 21 by a fixing pin. A synchronous belt 26 is fitted on the driving pulley 24 and the driven pulley 25.

[0024] When the first power source 23 is working, it can drive the gun body 21 to rotate using the synchronous belt transmission structure.

[0025] The cleaning component 3 includes a second power source 31, which is fixedly installed inside the cover 14 and located above the gun body 21. The output shaft of the second power source 31 passes through the cover 14 and is connected to a rotating block 33 via a transmission shaft 32.

[0026] The second power source 31 adopts a servo motor. When the second power source 31 is working, it can drive the rotating block 33 to rotate through the transmission shaft 32. The second power source 31 can precisely control the rotation angle of the rotating block 33.

[0027] When the rotating block 33 rotates to a vertically downward position, its inner side abuts against the end face of the air cap 22, and the lower part of the rotating block 33 covers the discharge port of the air cap 22.

[0028] When the rotating block 33 covers the outlet of the air cap 22, it can prevent residual material from dripping.

[0029] When the rotating block 33 leaves the end face of the air cap 22, it will not affect the rotation of the spray gun.

[0030] The rotating block 33 is provided with an air passage 34. The end of the air passage 34 covers the outlet of the air cap 22. The top of the air passage 34 is connected to a negative pressure pipe 35. The negative pressure pipe 35 passes through the cover 14 and the protective cylinder 11 and extends into the interior of the protective cylinder 11.

[0031] The negative pressure tube 35 is connected to a known suction device. The inside of the negative pressure tube 35 is in a negative pressure state. After the air passage 34 covers the outlet of the air cap 22, the residual material can be sucked away by the negative pressure tube 35.

[0032] Working principle: During spraying, the second power source 31 is controlled to work, driving the rotating block 33 to rotate, so that the rotating block 33 moves away from the end face of the air cap 22.

[0033] The spray gun is controlled to operate, and the first power source 23 is also controlled to operate. The spray gun is driven to rotate using a synchronous belt drive structure, which can spray the inside corners of the battery case.

[0034] After the spraying is completed, the second power source 31 is controlled to work, driving the rotating block 33 to rotate, so that the rotating block 33 rotates to a vertical position, so that the rotating block 33 covers the discharge port of the air cap 22, blocking the leakage of residual material.

[0035] At this time, the air passage 34 covers the outlet of the air cap 22, and the residual material is sucked away by the negative pressure pipe 35.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary spray gun for coating battery casings with a self-cleaning function, characterized in that, include: The housing (1) includes a protective cylinder (11), a cover (14) is provided on the front side of the protective cylinder (11), and a spray gun assembly (2) is provided inside the protective cylinder (11). The spray gun assembly (2) includes a spray gun, which is axially rotatably mounted inside a protective cylinder (11); the spray gun includes a gun body (21), the head of which is threadedly connected to an air cap (22), the outer diameter of which is larger than that of the gun body (21), the air cap (22) is arranged outside the cover (14), and the air cap (22) has an angled air hole on only one side; the head of the gun body (21) penetrates the cover (14) and extends to the outside of the cover; A drive assembly is provided between the protective cylinder (11) and the cover (14), and the drive assembly is used to drive the spray gun to rotate. The cover (14) is equipped with a cleaning component (3), which includes a second power source (31), a drive shaft (32), a rotating block (33) and a negative pressure pipe (35). The second power source (31) is fixedly installed inside the cover (14) and located above the gun body (21). The output shaft of the second power source (31) passes through the cover (14) and is connected to the rotating block (33) through the transmission shaft (32). The rotating block (33) has an air passage (34) inside. The end of the air passage (34) can cover the discharge port of the air cap (22). The top of the air passage (34) is connected to the negative pressure pipe (35). The negative pressure pipe (35) passes through the cover (14) and the protective cylinder (11) and extends into the interior of the protective cylinder (11).

2. The rotary spray gun for coating battery casings with self-cleaning function according to claim 1, characterized in that: The protective sleeve (11) is fixedly provided with an installation sleeve (12), and the installation sleeve (12) is provided with a rotating element (13). The gun body (21) rotates and cooperates with the installation sleeve (12) through the rotating element (13).

3. The rotary spray gun for coating battery casings with self-cleaning function according to claim 2, characterized in that: The drive assembly includes a first power source (23), which is mounted above the mounting sleeve (12). The output shaft of the first power source (23) passes through the protective sleeve (11) and is connected to the gun body (21) via a synchronous belt drive structure.

4. The rotary spray gun for coating battery casings with self-cleaning function according to claim 1, characterized in that: When the rotating block (33) rotates downward to a vertical position, the inner side of the rotating block (33) abuts against the end face of the air cap (22), and the lower part of the rotating block (33) covers the outlet of the air cap (22).

5. The rotary spray gun for coating battery casings with self-cleaning function according to claim 4, characterized in that: When the rotating block (33) covers the outlet of the air cap (22), the end of the air passage (34) is aligned with the outlet.

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