Electrostatic spraying equipment

Abstract

The utility model relates to electrostatic spraying equipment which comprises a first support, a first spraying assembly, a second spraying assembly and a conveying assembly, the first spraying assembly comprises a first spray head, the second spraying assembly comprises a second support and a second spray head, and the conveying assembly is used for conveying workpieces to be sprayed in the first direction. The first support and the second support are both fixedly arranged on the ground, the first spray head is arranged on the first support in a liftable mode in the second direction, the second spray head is fixedly arranged on the second support, and the first spray head can spray paint with static electricity to the first surface of a workpiece to be sprayed. And the second spray head can spray the coating with static electricity to the second surface of the workpiece to be sprayed, the second surface is opposite to the first surface, the first spray head and the second spray head are arranged on the two sides of the conveying assembly in the second direction, and the first spray head and the second spray head are arranged in a staggered mode in the first direction. And in the conveying process, electrostatic spraying of the two surfaces of the spraying workpiece can be achieved, and the electrostatic spraying efficiency is improved.

Description

An electrostatic spraying equipment Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to an electrostatic spraying equipment. Background Technology

[0002] Electrostatic spraying equipment uses a high-voltage electric field to atomize and spray paint onto the surface of a workpiece. Relying on the traction of the electric field, it can spray concave surfaces or dead corners of the workpiece. Existing electrostatic spraying equipment can only spray one surface of the workpiece at a time. Furthermore, after changing the spraying surface, the position of the nozzle and the workpiece needs to be repositioned, and the spraying path also needs to be changed, making the operation cumbersome and reducing the efficiency of electrostatic spraying.

[0003] Therefore, there is an urgent need for an electrostatic spraying device to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide an electrostatic spraying device to at least solve one of the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides an electrostatic spraying device, comprising:

[0006] A conveying assembly for conveying the workpiece to be sprayed along a first direction;

[0007] The first support is fixed to the ground;

[0008] The first spraying assembly includes a first nozzle, which is vertically and vertically mounted on the first bracket along a second direction. The first nozzle is capable of spraying electrostatic paint onto the first surface of the workpiece to be sprayed.

[0009] The second spraying assembly includes a second bracket and a second nozzle. The second nozzle is fixedly mounted on the second bracket, which is fixedly mounted on the ground. The second nozzle is capable of spraying electrostatic paint onto the second surface of the workpiece to be sprayed, and the second surface is opposite to the first surface.

[0010] Along the second direction, the first nozzle and the second nozzle are respectively disposed on both sides of the conveying assembly; along the first direction, the first nozzle and the second nozzle are staggered.

[0011] Furthermore, the conveying assembly includes a conveyor frame and a skid. The conveyor frame is fixed to the ground, and the skid is slidably disposed on the conveyor frame along a first direction. The skid is used to place the workpiece to be sprayed.

[0012] Furthermore, the skid includes a skid frame and a protective net, the protective net being disposed on the skid frame, and the workpiece to be sprayed being placed on the protective net.

[0013] Furthermore, the first spraying assembly also includes a first material tank for conveying electrostatic paint, the first nozzle is fixedly installed on the first material tank and communicates with the first material tank, and the first material tank is vertically and vertically mounted on the first bracket along a second direction.

[0014] Furthermore, the electrostatic spraying equipment also includes a lifting assembly, which includes a drive component, a sprocket, and a chain. The sprocket is rotatably mounted on the first support. The output end of the drive component is connected to the sprocket. The sprocket is meshed with the chain. The chain is fixedly connected to the first material conveying tank.

[0015] Furthermore, the lifting assembly also includes a mounting base, which is fixedly connected to the chain, and the first material conveying tank is fixedly installed on the mounting base.

[0016] Furthermore, the lifting assembly also includes a guide rail, which is fixedly installed on the first bracket and extends along the second direction, and the mounting seat is slidably disposed on the guide rail.

[0017] Furthermore, the lifting assembly also includes a housing, in which the chain and the sprocket are both disposed, and the housing has an elongated hole extending in a second direction, through which the mounting base passes.

[0018] Furthermore, the electrostatic spraying equipment also includes a height detector, which is disposed on the conveyor frame and is used to detect the height of the first surface of the workpiece to be sprayed. Along the first direction, the height detector is located upstream of the first spray head and the second spray head.

[0019] Furthermore, the electrostatic spraying equipment also includes a high-voltage electrostatic generator, which enables the coating to acquire static electricity.

[0020] The beneficial effects of this utility model are as follows:

[0021] The electrostatic spraying equipment provided by this utility model includes a first support, a first spraying component, a second spraying component, and a conveying component. The first spraying component includes a first nozzle, and the second spraying component includes a second support and a second nozzle. The conveying component is used to convey the workpiece to be sprayed along a first direction. The first support and the second support are both fixedly mounted on the ground. The first nozzle is vertically mounted on the first support along a second direction, and the second nozzle is fixedly mounted on the second support. The first nozzle can spray electrostatic paint onto the first surface of the workpiece to be sprayed, and the second nozzle can spray electrostatic paint onto the second surface of the workpiece to be sprayed. The second surface is opposite to the first surface. Along the second direction, the first nozzle and the second nozzle are respectively located on both sides of the conveying component. Along the first direction, the first nozzle and the second nozzle are staggered. The workpiece to be coated is conveyed by the conveying assembly through the first and second spray heads to spray electrostatically coated paint onto the two opposing surfaces of the workpiece. Electrostatic spraying of both surfaces can be achieved during the conveying process without changing the workpiece's surface, repositioning the first and second spray heads and the workpiece, or altering the spraying path. This simplifies operation and improves the efficiency of electrostatic spraying. The staggered arrangement of the first and second spray heads prevents their atomized streams from clashing, resulting in better electrostatic spraying effects. Attached Figure Description

[0022] Figure 1 is a structural schematic diagram of the electrostatic spraying equipment provided in an embodiment of the present invention;

[0023] Figure 2 is a structural schematic diagram of the electrostatic spraying equipment provided in an embodiment of the present invention from another angle.

[0024] Figure 3 is a partial structural schematic diagram of the first spraying assembly and the lifting assembly provided in an embodiment of the present invention;

[0025] Figure 4 is a partial structural schematic diagram of the electrostatic spraying equipment provided in an embodiment of this utility model;

[0026] Figure 5 is a magnified view of part A in Figure 2;

[0027] Figure 6 is a magnified view of part B in Figure 2;

[0028] Figure 7 is a structural schematic diagram of the conveying assembly provided in an embodiment of this utility model.

[0029] In the picture:

[0030] 1. First support;

[0031] 2. First spraying assembly; 21. First spray nozzle; 22. First material conveying tank; 23. First material conveying head; 231. First material conveying orifice;

[0032] 3. Lifting assembly; 31. Mounting base; 32. Drive unit; 33. Sprocket; 34. Chain; 35. Guide rail; 36. Housing; 361. Elongated hole; 37. Support base;

[0033] 4. Second spraying assembly; 41. Second bracket; 42. Second nozzle; 43. Second material conveying tank; 44. Second material conveying end cap; 441. Second material conveying hole; 45. Fixing base;

[0034] 5. High-voltage electrostatic generator;

[0035] 6. Conveying assembly; 61. Conveying frame; 62. Skid; 621. Skid frame; 622. Protective net; 623. Mesh; 63. Conveyor belt; 64. Conveying roller;

[0036] 7. Altitude detector. Detailed Implementation

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0038] This utility model defines certain directional terms. Unless otherwise stated, the directional terms used, such as "up", "down", "left", "right", "inner", and "outer", are used for ease of understanding and therefore do not constitute a limitation on the scope of protection of this utility model.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] As shown in Figures 1-7, this embodiment provides an electrostatic spraying device for applying electrostatic charge to the coating material and then spraying it onto the workpiece to be coated.

[0042] Specifically, the electrostatic spraying equipment provided in this embodiment can be applied to the pretreatment process of automotive sheet metal parts before transportation. The workpiece to be sprayed is an automotive sheet metal part, and the coating is an anti-corrosion oil. The electrostatic spraying equipment is used to spray the anti-corrosion oil onto the surface of the automotive sheet metal part to protect it from rust and facilitate its transportation.

[0043] Furthermore, the electrostatic spraying equipment includes a first support 1, a first spraying component 2, a second spraying component 4, and a conveying component 6. The first spraying component 2 includes a first nozzle 21, and the second spraying component 4 includes a second support 41 and a second nozzle 42. The conveying component 6 is used to convey the workpiece to be sprayed along a first direction. The first support 1 and the second support 41 are both fixedly mounted on the ground. The first nozzle 21 is vertically mounted on the first support 1 along a second direction, and the second nozzle 42 is fixedly mounted on the second support 41. The first nozzle 21 can spray electrostatic paint onto the first surface of the workpiece to be sprayed, and the second nozzle 42 can spray electrostatic paint onto the second surface of the workpiece to be sprayed. The second surface is opposite to the first surface. Along the second direction, the first nozzle 21 and the second nozzle 42 are respectively located on both sides of the conveying component 6. Along the first direction, the first nozzle 21 and the second nozzle 42 are staggered. The workpiece to be coated is conveyed by the conveying assembly 6 through the first nozzle 21 and the second nozzle 42 to spray electrostatically coated two opposing surfaces of the workpiece. Electrostatic spraying of both surfaces can be achieved during the conveying process without changing the workpiece's surface, repositioning the first nozzle 21, the second nozzle 42, or the workpiece, or altering the spraying path. This simplifies operation and improves the efficiency of electrostatic spraying. The staggered arrangement of the first nozzle 21 and the second nozzle 42 prevents their atomized streams from clashing, resulting in a better electrostatic spraying effect.

[0044] In this embodiment, the conveying direction of the conveying component 6 is defined as the length direction, and the width direction of the conveying component 6 is defined as the third direction. The first direction refers to the length direction of the conveying component 6, and the second direction refers to the height direction. The first direction, the second direction, and the third direction are perpendicular to each other, and the plane formed by the first direction and the third direction is a horizontal plane.

[0045] In this embodiment, the misalignment of the first nozzle 21 and the second nozzle 42 means that the projection of the first nozzle 21 on the horizontal plane and the projection of the second nozzle 42 on the horizontal plane do not overlap at all.

[0046] Furthermore, the electrostatic spraying equipment also includes a high-voltage electrostatic generator 5, which enables the coating to acquire static electricity. When the electrostatically charged coating leaves the first nozzle 21 and the second nozzle 42, the electrostatic repulsion within the coating causes it to disperse into fine droplets. The electrostatically charged coating also adheres to the surface of the grounded workpiece to compensate for the charge, resulting in more uniform coating and saving coating material.

[0047] Furthermore, the electrostatic spraying equipment also includes a paint tank containing paint. The paint tank is connected to the first nozzle 21 and the second nozzle 42. The high-voltage electrostatic generator 5 enables the paint to acquire electrostatic charge before it is sprayed onto the two opposite surfaces of the workpiece to be sprayed by the first nozzle 21 and the second nozzle 42.

[0048] Furthermore, the electrostatic spraying equipment also includes a feed pipe with an inlet, a first outlet, and a second outlet. The inlet is connected to the paint tank, the first outlet is connected to the first nozzle 21, and the second outlet is connected to the second nozzle 42. Before the paint flows out of the first and second outlets in the feed pipe, the high-voltage electrostatic generator 5 causes the paint to acquire an electrostatic charge. The electrostatically charged paint then flows out from the first and second outlets and subsequently enters the first nozzle 21 and the second nozzle 42.

[0049] As shown in Figures 1-3, the first spraying assembly 2 also includes a first feed tank 22 for conveying electrostatically charged paint. A first nozzle 21 is fixedly installed in the first feed tank 22, and the first feed tank 22 is vertically and flexibly mounted on the first support 1 along a second direction. By raising and lowering the first feed tank 22 on the first support 1, the spraying distance between the first nozzle 21 and the first surface of the workpiece to be sprayed is adjusted to improve the electrostatic spraying effect.

[0050] Specifically, the first outlet of the conveying pipe is connected to the first conveying tank 22. The electrostatically charged paint flows into the first conveying tank 22 from the first outlet, and is then sprayed onto the first surface of the workpiece to be coated by the first nozzle 21.

[0051] As shown in Figure 3, there are multiple first nozzles 21, which are spaced apart along a third direction on the first material tank 22 to increase the spraying range and improve the spraying efficiency.

[0052] As shown in Figures 1-6, the electrostatic spraying equipment also includes a lifting component 3. The lifting component 3 is used to drive the first material tank 22 to move up and down in the second direction to adjust the spraying distance between the first nozzle 21 and the first surface of the workpiece to be sprayed, so as to improve the effect of electrostatic spraying.

[0053] The lifting assembly 3 includes a drive component 32, a sprocket 33, and a chain 34. The sprocket 33 is rotatably mounted on the first bracket 1. The output end of the drive component 32 is connected to the sprocket 33. The sprocket 33 is meshed with the chain 34, and the chain 34 is fixedly connected to the first material tank 22. The drive component 32 drives the sprocket 33 to rotate, and the sprocket 33 drives the chain 34 to move, thereby causing the first material tank 22 to rise and fall in the second direction. This adjusts the spraying distance between the first nozzle 21 and the first surface of the workpiece to be sprayed, resulting in a better electrostatic spraying effect.

[0054] Furthermore, the lifting assembly 3 also includes a mounting base 31, which is fixedly connected to the chain 34, and the first material conveying tank 22 is fixedly installed on the mounting base 31.

[0055] Furthermore, the lifting assembly 3 also includes a guide rail 35, which is fixedly installed on the first bracket 1 and extends along the second direction. The mounting base 31 is slidably disposed on the guide rail 35. The guide rail 35 improves the accuracy of the first conveying tank 22 moving along the second direction.

[0056] Furthermore, the lifting assembly 3 also includes a housing 36, which is fixedly mounted on the first bracket 1. The sprocket 33 is rotatably disposed within the housing 36, and the chain 34 is also disposed within the housing 36. The housing 36 has an elongated hole 361 extending in a second direction. The mounting base 31 passes through the elongated hole 361 and is fixedly connected to the chain 34. The elongated hole 361 prevents interference between the mounting base 31, the housing 36, and the chain 34.

[0057] Furthermore, the first spraying assembly 2 also includes a first conveying head 23, and the lifting assembly 3 also includes a support base 37. The two ends of the first conveying tank 22 are respectively connected to the first conveying head 23. The two first conveying heads 23 are respectively connected to the mounting base 31 and the support base 37. The support base 37 is lifted and lowered on the first bracket 1 along the second direction to improve the stability of the lifting of the first conveying tank 22.

[0058] Furthermore, a guide rail 35 is also provided on the first bracket 1 at the position corresponding to the support seat 37. The guide rail 35 extends along the second direction, and the support seat 37 is slidably disposed on the guide rail 35 to improve the accuracy of the first conveying tank 22 moving along the second direction.

[0059] Furthermore, a first conveying hole 231 is provided on the first conveying head 23, through which the first conveying tank 22 can be connected to the conveying pipe. Specifically, the first conveying hole 231 can be provided on both first conveying heads 23, and when the first conveying hole 231 is not needed, it can be blocked.

[0060] Furthermore, the second spraying assembly 4 also includes a second material tank 43, which is fixedly installed on the second bracket 41. The second nozzle 42 is disposed on the second material tank 43 and is connected to the second nozzle 42. The second material tank 43 is used to transport electrostatic paint to the second nozzle 42.

[0061] Specifically, the second outlet of the conveying pipe is connected to the second conveying tank 43. The electrostatically charged paint flows into the second conveying tank 43 from the second outlet, and is then sprayed onto the second surface of the workpiece to be coated by the second nozzle 42.

[0062] Furthermore, the second spraying assembly 4 also includes a second material conveying head 44, with the two ends of the second material conveying tank 43 respectively connected to the second material conveying head 44, and both second material conveying heads 44 are fixedly installed on the second bracket 41.

[0063] Furthermore, the second spraying assembly 4 also includes a fixing seat 45, which is configured one-to-one with the second material conveying head 44. The second material conveying head 44 is fixedly installed on the corresponding fixing seat 45, and both fixing seats 45 are fixedly installed on the second bracket 41.

[0064] Furthermore, a second conveying hole 441 is provided on the second conveying head 44, through which the second conveying tank 43 can be connected to the conveying pipe. Specifically, a second conveying hole 441 can be provided on both second conveying heads 44, and when the second conveying hole 441 is not needed, it can be blocked.

[0065] Furthermore, there are multiple second nozzles 42, which are spaced apart along a third direction on the second material tank 43 to increase the spraying range and improve the spraying efficiency.

[0066] Furthermore, the high-voltage electrostatic generator 5 is connected to the first material tank 22 and the second material tank 43 respectively. The first nozzle 21 is connected to the first material tank 22, and the second nozzle 42 is connected to the second material tank 43. During spraying, the voltage of the high-voltage electrostatic generator 5 is first increased to 80KV, so that the paint in the first material tank 22 and the second material tank 43 are both positively charged. The first material tank 22 and the second material tank 43 are both grounded. The positive charge attracts the negative charge, so that the paint becomes electrostatic. Then, it is sprayed onto the first surface of the workpiece to be sprayed through the first nozzle 21, and uniformly sprayed onto the second surface of the workpiece to be sprayed through the second nozzle 42.

[0067] In this embodiment, the high-voltage electrostatic generator 5 is model SCHNIER Smart-E, with a maximum transmission voltage of 100KV and a maximum output current of 800μA. It is controlled by Profinet communication, has simple wiring, and has a built-in residual energy detection function, simplifying the safety design.

[0068] To facilitate electrostatic spraying, the coating can also be pressurized and / or heated before being conveyed into the delivery pipe.

[0069] Furthermore, the electrostatic spraying equipment also includes a height detector 7, which is disposed on the conveyor frame 61. The height detector 7 is used to detect the height of the first surface of the workpiece to be sprayed. Along the first direction, the height detector 7 is located upstream of the first nozzle 21 and the second nozzle 42. The height detector 7 detects the height of the first surface of the workpiece to be sprayed so as to adjust the height of the first nozzle 21 according to the height of the first surface, thereby ensuring a suitable spraying distance between the first nozzle 21 and the first surface, and improving the effect of electrostatic spraying.

[0070] It should be noted that when the first surface is not a single plane, the first nozzle 21 can also be adjusted in real time according to the height of each position of the first surface detected by the height detector 7, so that the area to be sprayed on the first surface and the first nozzle are at a suitable spraying distance, so as to improve the effect of electrostatic spraying.

[0071] In this embodiment, the height detector 7 can be a measurement-type automated grating, and the model of the measurement-type automated grating can be MLG-2. The grating can cross the optical axis during measurement, thereby doubling the resolution again without changing the hardware structure.

[0072] As shown in Figures 1, 2 and 7, the conveying assembly 6 includes a conveying frame 61 and a skid 62. The conveying frame 61 is fixed to the ground, and the skid 62 is slidably disposed on the conveying frame 61 along a first direction. The skid 62 is used to place the workpiece to be sprayed.

[0073] Furthermore, the skid 62 includes a skid frame 621 and a protective net 622, with the protective net 622 disposed on the skid frame 621 and the workpiece to be sprayed placed on the protective net 622.

[0074] Furthermore, the protective net 622 has multiple mesh openings 623, which are used to allow electrostatically charged paint to pass through the second nozzle 42, so as to spray electrostatically charged paint onto the second surface of the workpiece. Specifically, the multiple mesh openings 623 are arranged in rows and columns.

[0075] Specifically, each mesh of the mesh 623 has a size of 70mm*70mm, and the second nozzle 42 can spray the electrostatically charged paint evenly onto the second surface of the workpiece through the mesh 623.

[0076] It should be noted that the mesh of the protective net 622 is fine enough, and the skid 62 moves at a constant speed during the spraying process. The second nozzle 42 moves dynamically relative to the second surface of the workpiece to be sprayed. There will be no dead corners on the second surface of the workpiece to be sprayed, and the spraying quality of the second nozzle 42 on the second surface of the workpiece to be sprayed will not be affected.

[0077] Furthermore, the conveying assembly 6 also includes a belt conveyor group, which includes a conveyor belt 63 and a conveyor roller 64. The conveyor roller 64 is mounted on the conveyor frame 61, the conveyor belt 63 is sleeved on the conveyor roller 64, and the skid 62 is placed on the conveyor belt 63.

[0078] Furthermore, the conveying assembly 6 also includes a drive source that drives the conveying roller 64 to rotate, thereby driving the conveyor belt 63 to move, which in turn drives the skid 62 to move along the first direction.

[0079] In this embodiment, there can be multiple belt conveyor groups, which are spaced apart along the first direction. The interval between two adjacent belt conveyor groups is smaller than the size of the skid 62 along the first direction, so that the skid 62 can transport smoothly.

[0080] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An electrostatic spraying device, characterized in that, include: A conveying assembly (6) for conveying the workpiece to be sprayed along a first direction; a first support (1) fixed to the ground; The first spraying assembly (2) includes a first nozzle (21), which is vertically and flexibly mounted on the first support (1) along a second direction. The first nozzle (21) is capable of spraying electrostatic paint onto the first surface of the workpiece to be sprayed. The second spraying assembly (4) includes a second support (41) and a second nozzle (42), which is fixedly mounted on the second support (41) and the second support (41) is fixedly mounted on the ground. The second nozzle (42) is capable of spraying electrostatic paint onto the second surface of the workpiece to be sprayed, which is opposite to the first surface. Along the second direction, the first nozzle (21) and the second nozzle (42) are respectively located on both sides of the conveying assembly (6). Along the first direction, the first nozzle (21) and the second nozzle (42) are staggered.

2. The electrostatic spraying equipment according to claim 1, characterized in that, The conveying assembly (6) includes a conveying frame (61) and a skid (62). The conveying frame (61) is fixed to the ground, and the skid (62) is slidably disposed on the conveying frame (61) along a first direction. The skid (62) is used to place the workpiece to be sprayed.

3. The electrostatic spraying equipment according to claim 2, characterized in that, The skid (62) includes a skid frame (621) and a protective net (622), the protective net (622) being disposed on the skid frame (621), and the workpiece to be sprayed being placed on the protective net (622).

4. The electrostatic spraying equipment according to claim 1, characterized in that, The first spraying assembly (2) further includes a first material tank (22) for conveying electrostatic paint, the first nozzle (21) is fixedly installed on the first material tank (22) and the first nozzle (21) is in communication with the first material tank (22), and the first material tank (22) is vertically and vertically mounted on the first bracket (1) along the second direction.

5. The electrostatic spraying equipment according to claim 4, characterized in that, The electrostatic spraying equipment also includes a lifting assembly (3), which includes a drive component (32), a sprocket (33) and a chain (34). The sprocket (33) is rotatably mounted on the first bracket (1). The output end of the drive component (32) is connected to the sprocket (33). The sprocket (33) is meshed with the chain (34). The chain (34) is fixedly connected to the first material conveying tank (22).

6. The electrostatic spraying equipment according to claim 5, characterized in that, The lifting assembly (3) also includes a mounting base (31), which is fixedly connected to the chain (34), and the first material conveying tank (22) is fixedly installed on the mounting base (31).

7. The electrostatic spraying equipment according to claim 6, characterized in that, The lifting assembly (3) also includes a guide rail (35), which is fixedly installed on the first bracket (1) and extends along the second direction. The mounting base (31) is slidably disposed on the guide rail (35).

8. The electrostatic spraying equipment according to claim 7, characterized in that, The lifting assembly (3) also includes a housing (36), the chain (34) and the sprocket (33) are both located inside the housing (36), the housing (36) has an elongated hole (361) extending in a second direction, and the mounting base (31) passes through the elongated hole (361).

9. The electrostatic spraying equipment according to claim 2, characterized in that, The electrostatic spraying equipment also includes a height detector (7), which is located on the conveyor frame (61). The height detector (7) is used to detect the height of the first surface of the workpiece to be sprayed. Along the first direction, the height detector (7) is located upstream of the first nozzle (21) and the second nozzle (42).

10. The electrostatic spraying equipment according to claim 1, characterized in that, The electrostatic spraying equipment also includes a high-voltage electrostatic generator (5), which enables the coating to acquire static electricity.

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