Plasma spraying device for surface treatment of electrical cabinet

Abstract

The invention discloses a plasma spraying device for surface treatment of an electrical cabinet, which comprises four positioning columns extending into the internal space of the electrical cabinet, and the linear distances between the positioning columns and the internal side surface of the electrical cabinet are the same; the four rollers are fixedly arranged on the four positioning columns respectively; the mounting block is fixedly connected with the plasma gun nozzle; the belt body is provided with a first end part and a second end part, the first end part is fixedly connected with the mounting block, and the second end part is in rolling connection with the mounting block and is used for adjusting the total length of the belt body outside the mounting block; the belt body completing adjustment is arranged on the four rolling wheels in a sleeving mode, and driving force is applied to the four positioning columns so that the four positioning columns can rotate synchronously in the same direction. Peripheral annular movable spraying is performed under the condition that the distance between the plasma gun and the inner wall of the electrical cabinet is kept, the suspended electrical cabinet shakes due to airflow generated by spraying, the distance and angle of the plasma gun to the inner wall of the electrical cabinet are not changed, and a uniform coating is formed.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary accessories of a spray device, and in particular to a plasma spraying device for surface treatment of an electrical cabinet. Background Art

[0002] Spraying paint on the surface of electrical cabinets is a common means of corrosion and moisture resistance. The object of spraying is the finished electrical cabinet without door frame installed. The benefit of overall anti-corrosion treatment of the finished electrical cabinet is that it can fully cover all surfaces that may be exposed to the external environment, including corners, joints and other difficult-to-treat parts, thereby providing more complete and effective anti-corrosion protection. During plasma spraying, the electrical cabinet is suspended in the air by a spray hanger. First, the paint is sprayed on the five sides of the inner surface of the electrical cabinet, and then the paint is sprayed on the five sides of the outer surface of the electrical cabinet. Spraying When spraying, a plasma gun is used to spray to complete the spraying. If the electrical cabinet is large and the space inside is spacious, a mechanically controlled plasma gun is generally used to extend into the spraying. If the electrical cabinet is small and the space inside is narrow, a manually controlled plasma gun is generally used to extend into the spraying. When spraying, the plasma gun sprays paint at a high speed onto the inner surface of the electrical cabinet. Due to the hanging in the air, the electrical cabinet, especially the small electrical cabinet, will shake slightly. The distance and angle between the side of the sprayed paint and the nozzle of the plasma gun are always changing due to the shaking, and the coating will become uneven. Summary of the invention

[0003] The purpose of the present invention is to provide a plasma spraying device for surface treatment of an electrical cabinet, so as to overcome the problem of uneven coating caused by shaking of the suspended electrical cabinet during spraying.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A plasma spraying device for surface treatment of an electrical cabinet, comprising:

[0006] Four positioning columns extend into the inner space of the electrical cabinet, and the straight-line distance between each positioning column and the inner side of the electrical cabinet is the same;

[0007] Four rollers are fixedly arranged on four positioning columns respectively;

[0008] A mounting block fixedly connected to the plasma gun nozzle;

[0009] The belt body has a first end and a second end, the first end is fixedly connected to the mounting block, and the second end is movably connected to the mounting block, so as to adjust the total length of the belt body outside the mounting block;

[0010] The adjusted belt body is sleeved on four rollers, and a driving force is applied to the four positioning columns to make them rotate synchronously in the same direction, and the plasma gun fixed to the mounting block moves accordingly and sprays.

[0011] Preferably, the anti-corrosion treatment equipment also includes an intermediate plate slidably set with the positioning column, and two adjacent side surfaces of the intermediate plate are fixedly connected with an adjustment plate, and the adjustment plate is slidably set with a frame, and the frame is vertically fixedly connected with a magnetic plate. The frame is also fixedly connected with an adjustment cylinder, and the adjustment cylinder has a thread inside, and the adjustment cylinder is threadedly connected with a threaded rod, and the threaded rod is fixedly connected with a rubber pad at one end close to the frame.

[0012] Preferably, a hydraulic cylinder is installed on one of the adjustment plates, and the output shaft of the hydraulic cylinder is fixedly connected to a connecting plate, which is rotatably connected to the top of the positioning column. The hydraulic cylinder is used to control the movement of the positioning column in the vertical direction. A first motor is installed on the other adjustment plate, and the output shaft of the first motor is fixedly connected to a driving gear, which is meshingly connected to a driven gear, and a limiting block is extended from the inner ring of the driven gear. The positioning column is provided with a limiting slot, which is slidably connected to the limiting slot and the limiting block, and the first motor is used to control the rotation direction and speed of the positioning column.

[0013] Preferably, an adjustment groove is opened in the mounting block, a second motor is installed in the adjustment groove, the output end of the second motor is fixedly connected to the rotating drum, one end of the belt body extends into the adjustment groove and is fixedly connected to the outer wall of the rotating drum, and the second motor is used to control the number of rolling layers of the belt body on the rotating drum.

[0014] Preferably, a fixed plate is fixedly connected in the adjustment groove, and the fixed plate is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to a baffle, a spring is sleeved on the outer wall of the sliding rod, and the two ends of the spring are respectively connected to the baffle and the fixed plate, a baffle cloth is provided on the mounting block, and the baffle cloth has rebound ability, a spring sheet is provided in the mounting groove, the two ends of the spring sheet are bonded to the baffle cloth, the middle part of the spring sheet is in contact with the sliding rod, and the sliding rod contains a magnetic block.

[0015] Preferably, a fixing ring is fixedly sleeved on the top of the positioning column, a sleeve groove is provided on the connecting plate, the fixing ring is located inside the sleeve groove and is slidably connected to the sleeve groove, two circular grooves are provided on the connecting plate, a conductor is slidably connected to the circular groove, the conductor has a first resistor, a sleeve body is fixedly connected above the circular groove of the connecting plate, a compression spring is arranged inside the sleeve body, the compression spring is sleeved on the outer wall of the conductor, and the two ends of the compression spring are respectively connected to the sleeve body and the conductor.

[0016] Preferably, the positioning column is provided with a middle groove, a disc is fixedly connected to the top of the middle groove, the disc is made of conductive material, a round rod-shaped core is also fixedly connected in the middle groove, a coil is wound on the core, the coil has two power-carrying ends, both are fixedly connected to the disc.

[0017] Preferably, the conductor is fixedly sleeved with a first ring body, the conductor has a thread and is threadedly connected to a second ring body, a third ring body is slidably sleeved outside the second ring body, the third ring body is fixedly connected to the first ring body through a connecting wire, the first ring body, the second ring body, the third ring body and the connecting wire have a second resistance as a whole, the second resistance is much smaller than the first resistance, so that the current always passes through the first ring body, the second ring body, the third ring body and the connecting wire to keep the coil energized.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention performs circumferential mobile spraying while maintaining a distance between the plasma gun and the inner wall of the electrical cabinet. The airflow generated by the spraying causes the suspended electrical cabinet to shake, but the distance and angle of the plasma gun to the inner wall of the electrical cabinet do not change, and the formed coating is relatively uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention, in which four positioning columns are installed on the electrical cabinet;

[0021] Figure 2 A schematic diagram of a positioning column and a structure connected to the positioning column in a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention;

[0022] Figure 3 This is a schematic structural diagram of a frame and a threaded rod in a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention;

[0023] Figure 4 A schematic diagram of the connection structure between a connecting plate and an intermediate plate in a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention;

[0024] Figure 5 for Figure 4 A partial schematic diagram of the connection structure between the middle connecting plate and the positioning column;

[0025] Figure 6 for Figure 4 A partial schematic diagram of the connection structure between the middle plate and the positioning column;

[0026] Figure 7 This is a structural schematic diagram of a mounting block and a belt body in a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of a mounting block in a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention;

[0028] Fig. 9A schematic diagram of a structure of a conductor and a connection with the conductor in a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention;

[0029] Fig.10 This is a structural schematic diagram of another installation form of a plasma spraying device for surface treatment of an electrical cabinet proposed by the present invention, in which four positioning columns are installed in the electrical cabinet.

[0030] In the figure: 1, positioning column; 2, roller; 3, mounting block; 4, belt body; 5, middle plate; 6, adjustment plate; 7, frame; 8, magnetic plate; 9, adjustment cylinder; 10, threaded rod; 11, rubber pad; 12, hydraulic cylinder; 13, connecting plate; 14, first motor; 15, driving gear; 16, driven gear; 17, limit block; 18, limit slot; 19, adjustment slot; 20, second motor; 21, rotating drum ; 22. Fixed plate; 23. Sliding rod; 24. Baffle plate; 25. Spring; 26. Cloth baffle; 27. Shrapnel; 28. Magnetic block; 29. ​​Fixed ring; 30. Sleeve groove; 31. Circular groove; 32. Conductor; 33. Sleeve body; 34. Compression spring; 35. Middle groove; 36. Disc; 37. Core body; 38. Coil; 39. First ring body; 40. Second ring body; 41. Third ring body; 42. Connecting wire. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Reference Figure 1 -Attached Fig.10 , a plasma spraying device for surface treatment of an electrical cabinet, comprising:

[0033] Four positioning columns 1 extend into the inner space of the electrical cabinet, and the straight-line distances between each positioning column 1 and the inner side of the electrical cabinet are the same;

[0034] Four rollers 2 are fixedly mounted on four positioning columns 1 respectively;

[0035] The mounting block 3 is fixedly connected with the nozzle of the plasma gun;

[0036] An elastic belt body 4 has a first end and a second end, the first end is fixedly connected to the mounting block 3, and the second end is movably connected to the mounting block 3, so as to adjust the total length of the belt body 4 outside the mounting block 3;

[0037] The adjusted belt body 4 is sleeved on the four rollers 2, and a driving force is applied to the four positioning columns 1 to make them rotate synchronously in the same direction, and the plasma gun fixed to the mounting block 3 moves accordingly and sprays.

[0038] Through the above technical scheme, circular mobile spraying is performed all around while maintaining the distance between the plasma gun and the inner wall of the electrical cabinet. The airflow generated by the spraying causes the suspended electrical cabinet to shake, but the distance and angle of the plasma gun to the inner wall of the electrical cabinet do not change, and the formed coating is relatively uniform. Among them, the key to offsetting the influence of shaking is that the plasma gun maintains a distance from the inner wall of the electrical cabinet. The distance is maintained mainly through the positioning restrictions of four positioning columns, that is, the plasma gun spraying on the inner wall of the electrical cabinet shakes synchronously with the electrical cabinet, that is, the distance and angle of the plasma gun to the inner wall of the electrical cabinet do not change.

[0039] The anti-corrosion treatment equipment also includes an intermediate plate 5 slidably set with the positioning column 1, and the two adjacent side surfaces of the intermediate plate 5 are fixedly connected with an adjustment plate 6, and the adjustment plate 6 is slidably set with a frame 7, and the frame 7 is vertically fixedly connected with a magnetic plate 8. The frame 7 is also fixedly connected with an adjustment cylinder 9, and the adjustment cylinder 9 has a thread inside. The adjustment cylinder 9 is threadedly connected with a threaded rod 10, and the end of the threaded rod 10 close to the frame 7 is fixedly connected with a rubber pad 11.

[0040] Through the above technical solution, when adjusting the distance of the positioning column 1 relative to the inner wall of the electrical cabinet, the slidable adjustment plate 6 is restricted and locked to ensure that the positioning column 1 is stable in the predetermined adjustment position, thereby ensuring that the predetermined trajectory of the plasma gun will not change during mobile spraying.

[0041] A hydraulic cylinder 12 is installed on one of the adjustment plates 6. The output shaft of the hydraulic cylinder 12 is fixedly connected to a connecting plate 13. The connecting plate 13 is rotatably connected to the top of the positioning column 1. The hydraulic cylinder 12 is used to control the movement of the positioning column 1 in the vertical direction. A first motor 14 is installed on the other adjustment plate 6. The output shaft of the first motor 14 is fixedly connected to a driving gear 15. The driving gear 15 is meshingly connected to a driven gear 16. A limiting block 17 extends from the inner ring of the driven gear 16. A limiting groove 18 is provided on the positioning column 1. The limiting groove 18 is slidably connected to the limiting block 17. The first motor 14 is used to control the rotation direction and rotation speed of the positioning column 1.

[0042] An adjustment slot 19 is provided in the mounting block 3, in which a second motor 20 is installed. A rotating drum 21 is fixedly connected to the output end of the second motor 20. One end of the belt body 4 extends into the adjustment slot 19 and is fixedly connected to the outer wall of the rotating drum 21. The second motor 20 is used to control the number of rolling layers of the belt body 4 on the rotating drum 21.

[0043] A fixed plate 22 is also fixedly connected in the adjustment groove 19, and a sliding rod 23 is slidably connected to the fixed plate 22. One end of the sliding rod 23 is fixedly connected to a baffle 24. A spring 25 is sleeved on the outer wall of the sliding rod 23. The two ends of the spring 25 are respectively connected to the baffle 24 and the fixed plate 22. A baffle cloth 26 is provided on the mounting block 3. The baffle cloth 26 has resilience. If the material used is natural rubber, the thickness of the baffle cloth 26 is 4-6mm. A spring piece 27 is provided in the mounting groove. If it is made of thermoplastic elastomer or polyurethane elastomer, the two ends of the spring piece 27 are bonded to the baffle cloth 26, the middle part of the spring piece 27 is in contact with the sliding rod 23, and the sliding rod 23 contains a magnetic block 28.

[0044] A fixing ring 29 is fixedly sleeved on the top of the positioning column 1, and a sleeve groove 30 is provided on the connecting plate 13. The fixing ring 29 is located inside the sleeve groove 30 and is slidably connected to the sleeve groove 30. The connecting plate 13 has two circular grooves 31. The circular grooves 31 are slidably connected with a conductor 32. The conductor 32 has a first resistor. A sleeve 33 is fixedly connected above the circular groove 31 of the connecting plate 13. A compression spring 34 is provided in the sleeve 33. The compression spring 34 is sleeved on the outer wall of the conductor 32 and the two ends of the compression spring 34 are respectively connected to the sleeve 33 and the conductor 32. The elastic force of the compression spring 34 makes the conductor 32 always have a tendency to move toward the positioning column 1.

[0045] The positioning column 1 is provided with a middle groove 35, and a disc 36 is fixedly connected to the top of the middle groove 35. The disc 36 is made of a conductive material. A round rod-shaped core 37 is also fixedly connected in the middle groove 35, and a coil 38 is wound on the core 37. The coil 38 has two energized ends, both of which are fixedly connected to the disc 36.

[0046] The conductor 32 is fixedly sleeved with the first ring body 39, the conductor 32 has a thread and is threadedly connected to the second ring body 40, the second ring body 40 is slidably sleeved with the third ring body 41, the third ring body 41 is fixedly connected to the first ring body 39 through the connecting line 42, the first ring body 39, the second ring body 40, the third ring body 41 and the connecting line 42 have a second resistance as a whole, and the second resistance is much smaller than the first resistance, so that the current always passes through the first ring body 39, the second ring body 40, the third ring body 41 and the connecting line 42 to keep the coil 38 in an energized state.

[0047] It should be noted that:

[0048] The magnetic plate 8 is connected to the electrical cabinet by magnetic attraction. If the electrical cabinet cannot be magnetically attracted, a hydrosol can be used to bond the magnetic plate 8 and the electrical cabinet, which will facilitate the separation of the two later.

[0049] Except for those structures that are magnetic or can be magnetically adsorbed, all structures in this solution are made of materials that cannot be magnetically adsorbed.

[0050] Working principle:

[0051] Reference Figure 1 First, spray the four vertical sides of the electrical cabinet. Use the clamp to connect the plasma gun to the mounting block 3, determine the distance from the plasma gun nozzle to the side, and then determine the position of the positioning column 1. Then use the magnetic plate 8 to magnetically install it on the electrical cabinet. Finally, adjust the total length of the belt body 4 outside the mounting block 3 so that the belt body 4 can be stably covered on the four rollers 2 at the same time.

[0052] Start the first motor 14, the four positioning columns 1 rotate synchronously, driving the belt body 4 and the mounting block 3 to make circumferential circulation motion, so as to spray the four vertical side surfaces, and cooperate with the hydraulic cylinder 12 to drive the roller 2 to move up and down to complete the spraying;

[0053] When the mounting block 3 passes the roller 2, the distance between the plasma gun nozzle and the corner is far away, so it needs to be pulled closer. The positive and negative electrodes are respectively connected to the tops of the two conductors 32, and the coil 38 is energized to generate a magnetic field. The magnetic adsorption causes the sliding rod 23 to rush toward the blocking cloth 26, and the blocking cloth 26 expands outward to form a bulge. The spring piece 27 is used to form a complete arc bulge to avoid being stuck on the roller 2 and unable to move. The distance of the bulge appropriately fills the distance between the plasma gun nozzle and the corner.

[0054] By adjusting the distance between the third ring body 41 and the first ring body 39 by rotating the thread, the resistance value in the coil 38 can be adjusted, thereby changing the current, and the strength of the generated magnetic field can be adjusted, and then the amplitude of the arc protrusion formed can be adjusted, thereby adjusting the distance between the plasma gun nozzle and the corner of the electrical cabinet.

[0055] The last bottom surface is left. Please refer to the attached Fig.10 The four positioning posts 1 are installed in the middle. Dual plasma guns can be used for spraying. The two belts 4 are respectively mounted on the two groups of positioning posts 1. The difference from spraying the four vertical sides is that the plasma gun performs reciprocating linear motion to spray the bottom surface.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plasma spraying device for surface treatment of electrical cabinets, characterized in that: include: Four positioning columns (1) extend into the inner space of the electrical cabinet, and the straight-line distances between each positioning column (1) and the inner side of the electrical cabinet are the same; Four rollers (2) are respectively fixedly arranged on four positioning columns (1); A mounting block (3) fixedly connected to the plasma gun nozzle; A belt body (4) having a first end and a second end, wherein the first end is fixedly connected to the mounting block (3), and the second end is movably connected to the mounting block (3) to adjust the total length of the belt body (4) outside the mounting block (3); The adjusted belt body (4) is sleeved on four rollers (2), and a driving force is applied to the four positioning columns (1) to make them rotate synchronously in the same direction, so that the plasma gun fixed to the mounting block (3) moves accordingly and sprays.

2. The plasma spraying device for surface treatment of electrical cabinets according to claim 1, characterized in that: The anti-corrosion treatment equipment also includes an intermediate plate (5) slidably arranged with the positioning column (1), two adjacent side surfaces of the intermediate plate (5) are fixedly connected with an adjustment plate (6), the adjustment plate (6) is slidably arranged with a frame (7), the frame (7) is vertically fixedly connected with a magnetic plate (8), the frame (7) is also fixedly connected with an adjustment cylinder (9), the adjustment cylinder (9) has a thread, the adjustment cylinder (9) is threadedly connected with a threaded rod (10), and the threaded rod (10) is fixedly connected with a rubber pad (11) at one end close to the frame (7).

3. The plasma spraying device for surface treatment of electrical cabinets according to claim 1, characterized in that: A hydraulic cylinder (12) is installed on one of the adjustment plates (6). The output shaft of the hydraulic cylinder (12) is fixedly connected to a connecting plate (13). The connecting plate (13) is rotatably connected to the top of the positioning column (1). The hydraulic cylinder (12) is used to control the movement of the positioning column (1) in the vertical direction. A first motor (14) is installed on the other adjustment plate (6). The output shaft of the first motor (14) is fixedly connected to a driving gear (15). The driving gear (15) is meshingly connected to a driven gear (16). A limiting block (17) extends from the inner ring of the driven gear (16). The positioning column (1) is provided with a limiting groove (18). The limiting groove (18) is slidably connected to the limiting block (17). The first motor (14) is used to control the rotation direction and rotation speed of the positioning column (1).

4. The plasma spraying device for surface treatment of electrical cabinets according to claim 1, characterized in that: An adjusting groove (19) is provided in the mounting block (3), a second motor (20) is installed in the adjusting groove (19), an output end of the second motor (20) is fixedly connected to a rotating drum (21), one end of the belt body (4) extends into the adjusting groove (19) and is fixedly connected to the outer wall of the rotating drum (21), and the second motor (20) is used to control the number of layers of the belt body (4) rolling on the rotating drum (21).

5. The plasma spraying device for surface treatment of electrical cabinets according to claim 4, characterized in that: A fixing plate (22) is fixedly connected in the adjusting groove (19), and a sliding rod (23) is slidably connected to the fixing plate (22). One end of the sliding rod (23) is fixedly connected to a baffle plate (24). A spring (25) is sleeved on the outer wall of the sliding rod (23), and two ends of the spring (25) are respectively connected to the baffle plate (24) and the fixing plate (22). The mounting block (3) is provided with a baffle cloth (26), and the baffle cloth (26) has a rebound ability. A spring piece (27) is provided in the mounting groove, and two ends of the spring piece (27) are bonded to the baffle cloth (26), and the middle part of the spring piece (27) contacts the sliding rod (23). The sliding rod (23) contains a magnetic block (28) inside.

6. The plasma spraying device for surface treatment of electrical cabinets according to claim 1, characterized in that: The top of the positioning column (1) is fixedly sleeved with a fixing ring (29); the connecting plate (13) is provided with a sleeve groove (30); the fixing ring (29) is located inside the sleeve groove (30) and is slidably connected to the sleeve groove (30); the connecting plate (13) is provided with two circular grooves (31); a conductor (32) is slidably connected to the circular groove (31); the conductor (32) has a first resistor; a sleeve body (33) is fixedly connected above the circular groove (31) of the connecting plate (13); a compression spring (34) is arranged inside the sleeve body (33); the compression spring (34) is sleeved on the outer wall of the conductor (32); and two ends of the compression spring (34) are respectively connected to the sleeve body (33) and the conductor (32).

7. The plasma spraying device for surface treatment of electrical cabinets according to claim 1, characterized in that: The positioning column (1) is provided with a middle groove (35), a disc (36) is fixedly connected to the top of the middle groove (35), the disc (36) is made of a conductive material, a round rod-shaped core (37) is also fixedly connected in the middle groove (35), a coil (38) is wound around the core (37), and the coil (38) has two energized ends, both of which are fixedly connected to the disc (36).

8. The plasma spraying device for surface treatment of electrical cabinets according to claim 1, characterized in that: The conductor (32) is fixedly sleeved with a first ring body (39), the conductor (32) has a thread and is threadedly connected with a second ring body (40), the second ring body (40) is slidably sleeved with a third ring body (41), the third ring body (41) is fixedly connected to the first ring body (39) through a connecting wire (42), the first ring body (39), the second ring body (40), the third ring body (41) and the connecting wire (42) have a second resistance as a whole, and the second resistance is much smaller than the first resistance, so that current always passes through the first ring body (39), the second ring body (40), the third ring body (41) and the connecting wire (42), so that the coil (38) is in a power-on state.

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