A metal surface plasma spraying equipment

Abstract

The invention discloses a metal surface plasma spraying device, comprising a body box, a body cavity is arranged in the body box, and a spraying mechanism is arranged in the body cavity. The invention utilizes the connecting rod transmission principle to first clamp the metal plate to be sprayed, and then utilizes the gravity of the metal plate to make the expansion box and the upper surface of the metal plate be on the same horizontal plane, so that the effect of spraying the edge of the metal surface is the same as that of normal spraying, so that the spraying effect is uniform, and after the spraying is completed, the plasma powder sprayed on the expansion box is recycled to save resources; not only that, the invention can also adjust the flow rate of plasma powder according to the size of the metal plate with spraying, and increase the powder flow rate when the metal area is too large, so as to ensure the spraying effect and improve the spraying quality. Moreover, the invention can also preheat the metal plate before spraying, and perform jet cooling on the metal plate during spraying, so as to ensure the spraying quality.

Description

Technical Field

[0001] The invention relates to the technical field of plasma spraying, in particular to a metal surface plasma spraying device. Background Art

[0002] Plasma spraying is a technology for strengthening and modifying the surface of materials, which can make the substrate surface have the properties of wear resistance, corrosion resistance, high temperature oxidation resistance, electrical insulation, heat insulation, radiation protection, friction reduction and sealing. When plasma spraying metal surfaces, due to the different powder supply speeds and part sizes, the powder often fails to melt or is severely oxidized. When spraying the metal edge, uneven spraying often occurs, and the material sprayed to the edge often causes huge waste and economic losses. Summary of the invention

[0003] The object of the present invention is to provide a metal surface plasma spraying device to overcome the above-mentioned defects in the prior art.

[0004] According to a metal surface plasma spraying device of the present invention, it comprises a body box, a body cavity is arranged in the body box, a spraying mechanism is arranged in the body cavity, the spraying mechanism comprises a fixed platform fixedly connected to the inner wall of the body cavity, a first transmission shaft located at the lower side of the fixed platform is rotatably connected to the inner wall of the body cavity, a torsion ring located at the lower side of the body box is arranged on the first transmission shaft, the first transmission shaft can be driven to rotate by twisting the torsion ring, a clamping disc is arranged on the first transmission shaft, the clamping disc is arranged with a first rotating shaft symmetrical about the center of the first transmission shaft, the inner wall of the body cavity is arranged with a first rotating shaft symmetrical about the center of the first transmission shaft The sliding groove is symmetrical about the axis, and a sliding block is symmetrical about the first transmission shaft in a sliding connection in a sliding groove, and the sliding block can slide left and right in the sliding groove, and a connecting rod rotatably connected to the sliding block is rotatably connected to the first rotating shaft, and the connecting rod is symmetrical about the center of the first transmission shaft, and a connecting plate located on the upper side of the connecting rod is provided on the sliding block, and the connecting plate is symmetrical about the first transmission shaft and is slidably connected to the fixed platform, and a transmission cavity is provided in the connecting plate, and a supporting cavity with an upward opening is provided in the fixed platform, and a bearing plate is provided in the supporting cavity, and a connecting plate is provided on the lower side of the bearing plate and is slidably connected to the fixed platform The cam is provided with a plurality of springs which are connected to the support frame of the vehicle body and are slidably connected to the support frame of the vehicle body. The cam is provided with a plurality of springs which are connected to the plurality of support frames and are slidably connected to the support frame of the vehicle body. The plurality of springs are connected to the plurality of support frames and are slidably connected to the support frame of the vehicle body. When the metal plate is placed on the carrying plate, the carrying plate can be driven to move downward, thereby driving the sliding rod to move downward, thereby driving the supporting rod to move downward, that is, the sliding plate moves downward, the buffer spring is compressed, and the supporting rod moves downward to drive the expansion box to move downward, so that the upper surface of the metal plate is pressed by the pressing plate. At this time, the upper surface of the expansion box is just flush with the upper surface of the metal plate, which can ensure that when plasma spraying is performed on the edge of the metal plate, it can be sprayed on the expansion box, thereby preventing plasma powder from accumulating at the edge of the metal plate and ensuring the spraying effect;By twisting the twisting ring, the first transmission shaft can be driven to rotate, thereby driving the clamping disc to rotate, that is, the first rotating shaft rotates around the first transmission shaft, and through the connecting rod transmission principle, the symmetrical sliding blocks can be driven to slide toward the first transmission shaft at the same time, thereby driving the symmetrical connecting plates to slide toward the fixed platform at the same time, so that the metal plate is clamped by the symmetrical expansion box. A collection mechanism is also provided in the body cavity, and the collection mechanism can collect excess plasma powder to prevent waste. ;

[0005] Furthermore, an expansion cavity is provided in the expansion box, a first motor is fixedly connected to the lower side of the expansion box, the first motor is dynamically connected to a second transmission shaft extending into the expansion cavity, the second transmission shaft is rotatably connected to the expansion box, a reciprocating disk located in the expansion cavity is provided on the second transmission shaft, a reciprocating plate is slidably connected to the inner wall of the expansion cavity, a reciprocating groove is provided on the reciprocating plate, and a second rotating shaft is provided on the reciprocating disk, which is located in the reciprocating groove and slidably connected to the reciprocating plate.

[0006] Furthermore, the reciprocating plate is provided with a telescopic box located at the rear side of the expansion box, the telescopic box is provided with a telescopic cavity, a telescopic block extending to the upper side of the telescopic cavity is slidably connected in the telescopic cavity, and a telescopic spring fixedly connected to the inner wall of the telescopic cavity is fixedly connected to the lower side of the telescopic block; an inclined groove is provided on the upper surface of the expansion box close to the metal plate, and an inclined push block is provided on the telescopic block and located in the inclined groove; both the inclined groove and the inclined push block are provided with inclined surfaces, and when the inclined push block slides in the direction away from the metal plate, the inclined push block will drive the telescopic block to slide upward due to the action of the inclined surface, and the telescopic spring will stretch, that is, the inclined push block will slide to the upper end surface of the expansion box, and the excess plasma spraying powder on the expansion box will be scraped away from the metal plate through the inclined push block.

[0007] Furthermore, a powder box extending into the body cavity is fixedly connected to the body box, a powder cavity is provided in the powder box, a spray head located on the upper side of the metal plate is fixedly connected to the lower side of the powder cavity, a blocking plate slidably connected to the powder box is fixedly connected to the connecting plate close to the powder box, the blocking plate symmetrically extends into the powder cavity and can block the powder in the powder cavity, and the size of the powder flow in the powder cavity can be controlled by the size of the metal plate, thereby ensuring the spraying efficiency and preventing waste.

[0008] Furthermore, a heater is provided in the carrier plate and is located at the lower side of the metal plate. A cooler is fixedly connected to the inner wall of the body cavity and is symmetrical with respect to the front and rear of the metal plate. Before spraying the metal plate, the metal plate can be heated by the reciprocating disk to preheat the metal plate. When plasma spraying the metal plate, the metal plate can be jet-cooled by the symmetrical cooler to improve the spraying quality and ensure the spraying effect.

[0009] Furthermore, the collection mechanism includes a recovery box fixedly connected to the inner wall of the body cavity, a recovery chamber is provided in the recovery box, a second motor is fixedly connected to the inner wall of the recovery chamber, the second motor is dynamically connected to a third transmission shaft rotatably connected to the recovery box, the third transmission shaft is provided with suction blades, the recovery chamber is fixedly connected to a filter plate close to the metal plate, and the recovery box is provided with a ventilating opening that connects the recovery chamber with the outside world.

[0010] Furthermore, the third transmission shaft is fixedly connected with a scraping plate located on the side of the filter plate away from the second motor, the scraping plate is provided with a pushing cavity, the filter plate is provided with a vortex groove, the vortex groove is slidably connected with a pushing ring slidably connected to the scraping plate, the pushing ring is fixedly connected with a reset spring located in the pushing cavity and fixedly connected to the inner wall of the pushing cavity, the fixed platform is provided with a collecting box located on the lower side of the recycling box, the collecting box is provided with a collecting cavity opening upward, and the staff can collect the powder in the recycling cavity for recycling.

[0011] The beneficial effects of the present invention are as follows: the present invention utilizes the connecting rod transmission principle to first clamp the metal plate to be sprayed, and then utilizes the gravity of the metal plate to make the expansion box and the upper surface of the metal plate be on the same horizontal plane, so that the effect of spraying the edge of the metal surface is the same as normal spraying, so that the spraying effect is uniform, and after the spraying is completed, the plasma powder sprayed on the expansion box is recycled to save resources; not only that, the present invention can also adjust the flow rate of plasma powder according to the size of the metal plate to be sprayed, and increase the powder flow rate when the metal area is too large, so as to ensure the spraying effect and improve the spraying quality, and the present invention can also preheat the metal plate before spraying, and jet-cool the metal plate during spraying, so as to ensure the spraying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the appearance of the present invention;

[0013] Figure 2 It is a schematic diagram of the overall structure of a metal surface plasma spraying device of the present invention;

[0014] Figure 3The present invention Figure 2 Schematic diagram of AA in the middle;

[0015] Figure 4 The present invention Figure 2 A partial enlarged schematic diagram of B in the middle;

[0016] Figure 5 The present invention Figure 2 A partial enlarged schematic diagram of C in the middle;

[0017] Figure 6 The present invention Figure 2 A partial enlarged schematic diagram of D in the middle;

[0018] Figure 7 The present invention Figure 2 Schematic diagram of EE

[0019] Figure 8 The present invention Figure 7 Schematic diagram of FF;

[0020] Fig. 9 The present invention Figure 6 Schematic diagram of GG in Chinese.

[0021] In the figure:

[0022] 11. Machine box; 12. Machine cavity; 13. Fixed platform; 14. First transmission shaft; 15. Twisting ring; 16. Clamping disc; 17. First rotating shaft; 20. Sliding groove; 19. Sliding block; 18. Connecting rod; 21. Connecting plate; 22. Transmission cavity; 27. Support cavity; 28. Loading plate; 26. Sliding rod; 23. Sliding plate; 24. Buffer spring; 25. Support rod; 30. Metal plate; 36. Extension box; 35. Pressure plate; 37. Extension cavity; 64. First motor; 38. Second transmission shaft; 39. Reciprocating disc; 41. Reciprocating plate; 42. Reciprocating slide groove ; 40. Second rotating shaft; 43. Telescopic box; 44. Telescopic chamber; 46. Telescopic block; 45. Telescopic spring; 48. Inclined slot; 47. Inclined push block; 31. Powder box; 32. Powder chamber; 34. Spray head; 33. Blocking plate; 29. ​​Heater; 63. Cooler; 49. Recovery box; 50. Recovery chamber; 52. Second motor; 53. Third transmission shaft; 54. Suction fan blade; 55. Filter plate; 51. Ventilation port; 57. Scraping plate; 59. Push chamber; 56. Vortex slide; 58. Push ring; 60. Reset spring; 61. Collection box; 62. Collection chamber. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up, down and left, right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of the metal surface plasma spraying equipment are described in detail below:

[0024] Referring to the accompanying drawings, a metal surface plasma spraying device according to an embodiment of the present invention includes a body box 11, a body cavity 12 is provided in the body box 11, a spraying mechanism 901 is provided in the body cavity 12, and the spraying mechanism 901 includes a fixed platform 13 fixedly connected to the inner wall of the body cavity 12, a first transmission shaft 14 located at the lower side of the fixed platform 13 is rotatably connected to the inner wall of the body cavity 12, a torsion ring 15 located at the lower side of the body box 11 is provided on the first transmission shaft 14, and the first transmission shaft 14 can be driven to rotate by twisting the torsion ring 15, and a clamping disc 16 is provided on the first transmission shaft 14, and a first clamping disc 16 is provided on the clamping disc 16, and a first clamping disc 16 is provided with a first clamping disc 16 symmetrical about the center of the first transmission shaft 14. A rotating shaft 17, a sliding groove 20 symmetrical about the first transmission shaft 14 is provided on the inner wall of the body cavity 12, a sliding block 19 symmetrical about the first transmission shaft 14 is slidably connected in the sliding groove 20, and the sliding block 19 can slide left and right in the sliding groove 20, a connecting rod 18 rotatably connected to the sliding block 19 is rotatably connected to the first rotating shaft 17, the connecting rod 18 is symmetrical about the center of the first transmission shaft 14, a connecting plate 21 located on the upper side of the connecting rod 18 is provided on the sliding block 19, the connecting plate 21 is symmetrical about the first transmission shaft 14 and is slidably connected to the fixed platform 13, a transmission cavity 22 is provided in the connecting plate 21, and an opening is provided in the fixed platform 13 An upward supporting cavity 27 is provided in the supporting cavity 27, and a bearing plate 28 is provided at the lower side of the bearing plate 28, and a sliding rod 26 slidably connected to the fixed platform 13 is provided. A sliding plate 23 is slidably connected in the connecting plate 21, and a buffer spring 24 fixedly connected to the inner wall of the transmission cavity 22 is provided at the lower side of the sliding plate 23. A supporting rod 25 slidably connected to the connecting plate 21 and extending to the upper side of the connecting plate 21 is fixedly connected to the upper side of the sliding plate 23, and the sliding rod 26 is slidably connected to the supporting rod 25 and the sliding rod 26 can only slide left and right on the supporting rod 25, so the sliding rod 26 can drive the supporting rod 25 to move up and down, and a metal plate 30 is provided on the upper side of the bearing plate 28, and the supporting rod 2 An extension box 36 is provided on the upper side thereof and is in contact with the metal plate 30. A pressure panel 35 is fixedly connected to the extension box 36 and is symmetrical with respect to the first transmission shaft 14 and in contact with the metal plate 30. When the metal plate 30 is placed on the carrier plate 28, the carrier plate 28 can be driven to move downward, thereby driving the sliding rod 26 to move downward, thereby driving the support rod 25 to move downward, that is, the sliding plate 23 moves downward, the buffer spring 24 is compressed, and the support rod 25 moves downward to drive the extension box 36 to move downward, thereby pressing the upper surface of the metal plate 30 by the pressure panel 35. At this time, the upper surface of the extension box 36 is just flush with the upper surface of the metal plate 30.This ensures that when plasma spraying is performed on the edge of the metal plate 30, it can be sprayed onto the expansion box 36, thereby preventing plasma powder from accumulating at the edge of the metal plate 30 and ensuring the spraying effect; twisting the twisting ring 15 can drive the first transmission shaft 14 to rotate, thereby driving the clamping disc 16 to rotate, that is, the first rotating shaft 17 rotates around the first transmission shaft 14, and through the connecting rod transmission principle, the symmetrical sliding blocks 19 can be driven to slide toward the first transmission shaft 14 at the same time, thereby driving the symmetrical connecting plates 21 to slide toward the fixed platform 13 at the same time, thereby using the symmetrical expansion box 36 to clamp the metal plate 30, and a collection mechanism 902 is also provided in the body cavity 12, and the collection mechanism 902 can collect excess plasma powder to prevent waste.

[0025] Preferably, an expansion chamber 37 is provided in the expansion box 36, and a first motor 64 is fixedly connected to the lower side of the expansion box 36. The first motor 64 is poweredly connected to a second transmission shaft 38 extending into the expansion chamber 37. The second transmission shaft 38 is rotatably connected to the expansion box 36. A reciprocating disk 39 located in the expansion chamber 37 is provided on the second transmission shaft 38. A reciprocating plate 41 is slidably connected to the inner wall of the expansion chamber 37. A reciprocating groove 42 is provided on the reciprocating plate 41. A second rotating shaft 40 located in the reciprocating groove 42 and slidably connected to the reciprocating plate 41 is provided on the reciprocating disk 39. When the first motor 64 is started, the second transmission shaft 38 can be driven to rotate, thereby driving the reciprocating disk 39 to rotate, that is, the second rotating shaft 40 rotates with the second transmission shaft 38 as the center of the circle. Due to the action of the reciprocating groove 42, the reciprocating plate 41 can be driven to slide left and right in the expansion chamber 37.

[0026] Preferably, the reciprocating plate 41 is provided with a telescopic box 43 located at the rear side of the expansion box 36, and a telescopic cavity 44 is provided in the telescopic box 43. A telescopic block 46 extending to the upper side of the telescopic cavity 44 is slidably connected in the telescopic cavity 44, and a telescopic spring 45 fixedly connected to the inner wall of the telescopic cavity 44 is fixedly connected to the lower side of the telescopic block 46. An inclined groove 48 is provided on the upper surface of the expansion box 36 near the direction of the metal plate 30, and an inclined push block 47 located in the inclined groove 48 is provided on the telescopic block 46. Both the inclined groove 48 and the inclined push block 47 are provided with inclined surfaces. When the inclined push block 47 slides in the direction away from the metal plate 30, the inclined push block 47 will drive the telescopic block 46 to slide upward due to the action of the inclined surface, and the telescopic spring 45 will stretch, that is, the inclined push block 47 will slide to the upper end surface of the expansion box 36, and when the inclined push block 47 returns to the inclined groove 48 again, the telescopic block 46 will slide downward under the action of the telescopic spring 45, that is, each part is reset, so that the excess plasma spraying powder on the expansion box 36 is scraped away from the metal plate 30 by the inclined push block 47.

[0027] Preferably, a powder box 31 extending into the body cavity 12 is fixedly connected to the body box 11, a powder cavity 32 is provided in the powder box 31, a spray head 34 located on the upper side of the metal plate 30 is fixedly connected to the lower side of the powder cavity 32, a blocking plate 33 slidably connected to the powder box 31 is fixedly connected to the connecting plate 21 close to the powder box 31, the symmetrical blocking plates 33 extend into the powder cavity 32 and can block the powder in the powder cavity 32, when the symmetrical connecting plate 21 slides toward the direction close to the metal plate 30, the symmetrical blocking plates 33 can be driven to approach each other in the powder cavity 32, and the longer the length of the metal plate 30, the farther the distance between the symmetrical blocking plates 33, that is, the greater the powder flow rate flowing downward from the powder cavity 32, and the size of the powder flow rate in the powder cavity 32 can be controlled by the size of the metal plate 30, thereby ensuring the spraying efficiency and preventing waste.

[0028] Preferably, a heater 29 located at the lower side of the metal plate 30 is provided in the supporting plate 28, and a cooler 63 symmetrically connected to the front and rear of the metal plate 30 is fixedly connected to the inner wall of the body cavity 12. Before spraying the metal plate 30, the metal plate 30 can be heated by the reciprocating disk 39, thereby preheating the metal plate 30. When plasma spraying is performed on the metal plate 30, the metal plate 30 can be jet-cooled by the symmetrical cooler 63, thereby improving the spraying quality and ensuring the spraying effect.

[0029] Preferably, the collecting mechanism 902 includes a recycling box 49 fixedly connected to the inner wall of the body cavity 12, a recycling chamber 50 is provided in the recycling box 49, a second motor 52 is fixedly connected to the inner wall of the recycling chamber 50, the second motor 52 is poweredly connected to a third transmission shaft 53 rotatably connected to the recycling box 49, a suction fan blade 54 is provided on the third transmission shaft 53, the recycling chamber 50 is fixedly connected to a filter plate 55 close to the metal plate 30, and a vent 51 is provided on the recycling box 49 for connecting the recycling chamber 50 with the outside world. After starting the second motor 52, the third transmission shaft 53 can be driven to rotate, thereby driving the suction fan blade 54 to rotate, thereby generating suction, and the plasma powder pushed by the inclined push block 47 can be sucked onto the filter plate 55.

[0030] Preferably, the third transmission shaft 53 is fixedly connected with a scraper plate 57 located on the side of the filter plate 55 away from the second motor 52, the scraper plate 57 is provided with a push cavity 59, the filter plate 55 is provided with a vortex chute 56, the vortex chute 56 is slidably connected with a push ring 58 slidably connected to the scraper plate 57, the push ring 58 is fixedly connected with a return spring 60 located in the push cavity 59 and fixedly connected to the inner wall of the push cavity 59, the fixed platform 13 is provided with a collection box 61 located at the lower side of the recovery box 49, and the collection box 61 is provided with a collection spring opening upward. Cavity 62, when the third transmission shaft 53 rotates, it can drive the scraper plate 57 to rotate, so as to scrape the plasma powder on the filter plate 55 onto the scraper plate 57, due to the action of the vortex chute 56, the push ring 58 gradually slides away from the third transmission shaft 53 when the third transmission shaft 53 rotates, and when the scraper plate 57 rotates one circle, the push ring 58 is reset under the action of the reset spring 60, and the push ring 58 can be used to scrape the plasma powder on the scraper plate 57, and the powder will fall into the collecting chamber 62, and the staff can recycle it.

[0031] A metal surface plasma spraying device of the present invention has the following working process:

[0032] When the metal plate 30 is placed on the carrying plate 28, the carrying plate 28 can be driven to move downward, thereby driving the sliding rod 26 to move downward, thereby driving the supporting rod 25 to move downward, that is, the sliding plate 23 moves downward, the buffer spring 24 is compressed, and the supporting rod 25 moves downward to drive the expansion box 36 to move downward, so that the upper side surface of the metal plate 30 is pressed by the pressing plate 35. At this time, the upper side surface of the expansion box 36 is just flush with the upper side surface of the metal plate 30, which can ensure that when plasma spraying is performed on the edge of the metal plate 30, it can be sprayed on the expansion box 36, thereby preventing plasma powder from accumulating at the edge of the metal plate 30 and ensuring the spraying effect; twisting the twisting ring 15 can drive the first transmission shaft 14 to rotate, thereby driving the clamping disc 16 to rotate, that is, the first rotating shaft 17 rotates with the first transmission shaft 14 as the center, and through the connecting rod transmission principle, the symmetrical sliding blocks 19 can be driven to move close to the first transmission shaft 14 at the same time. The symmetrical connecting plate 21 slides toward the fixed platform 13 at the same time, thereby driving the symmetrical connecting plate 21 to slide toward the fixed platform 13 at the same time, so that the metal plate 30 is clamped by the symmetrical expansion box 36. At the same time, when the symmetrical connecting plate 21 slides toward the metal plate 30, the symmetrical blocking plates 33 can be driven to approach each other in the powder chamber 32. The longer the length of the metal plate 30, the farther the distance between the symmetrical blocking plates 33, that is, the greater the powder flow rate flowing downward from the powder chamber 32, and the size of the powder flow rate in the powder chamber 32 can be controlled by the size of the metal plate 30, so as to ensure the spraying efficiency and prevent waste. Moreover, before spraying the metal plate 30, the metal plate 30 can be heated by the reciprocating disc 39, so as to preheat the metal plate 30. When the metal plate 30 is plasma sprayed, the metal plate 30 can be jet-cooled by the symmetrical cooler 63, so as to improve the spraying quality and ensure the spraying effect.

[0033] After the plasma spraying operation is completed, the first motor 64 is started to drive the second transmission shaft 38 to rotate, thereby driving the reciprocating disc 39 to rotate, that is, the second rotating shaft 40 rotates with the second transmission shaft 38 as the center of the circle. Due to the action of the reciprocating slide groove 42, the reciprocating plate 41 can be driven to slide left and right in the expansion chamber 37. When the inclined push block 47 slides away from the metal plate 30, the inclined push block 47 will drive the telescopic block 46 to slide upward due to the action of the inclined surface, and the telescopic spring 45 will stretch, that is, the inclined push block 47 will slide to the upper side end surface of the expansion box 36. When the inclined push block 47 returns to the inclined groove 48 again, the telescopic block 46 will slide downward under the action of the telescopic spring 45, that is, each part is reset, so that the excess plasma spraying powder on the expansion box 36 is pushed away from the metal plate 30 through the inclined push block 47. The scraping plate 50 is scraped in the direction of the third transmission shaft 53. After the second motor 52 is started, the third transmission shaft 53 can be driven to rotate, thereby driving the suction fan blade 54 to rotate, thereby generating suction, and the plasma powder pushed by the inclined push block 47 can be sucked onto the filter plate 55. At the same time, when the third transmission shaft 53 rotates, the scraping plate 57 can be driven to rotate, thereby scraping the plasma powder on the filter plate 55 onto the scraping plate 57. Due to the action of the vortex chute 56, the push ring 58 gradually slides away from the third transmission shaft 53 when the third transmission shaft 53 rotates, and when the scraping plate 57 rotates one circle, the push ring 58 is reset under the action of the reset spring 60, and the push ring 58 can be used to scrape the plasma powder on the scraping plate 57, and the powder will fall into the collection chamber 62, and the staff can recycle it.

[0034] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A metal surface plasma spraying device, comprising a body box, wherein a body cavity is provided in the body box, characterized in that: A spraying mechanism is provided in the body cavity, and the spraying mechanism includes a fixed platform fixedly connected to the inner wall of the body cavity, a first transmission shaft located at the lower side of the fixed platform is rotatably connected to the inner wall of the body cavity, a torsion ring located at the lower side of the body box is provided on the first transmission shaft, a clamping disc is provided on the first transmission shaft, and a first rotating shaft symmetrical about the center of the first transmission shaft is provided on the clamping disc, a sliding groove symmetrical about the first transmission shaft is provided on the inner wall of the body cavity, a sliding block symmetrical about the first transmission shaft is slidably connected in the sliding groove, and the sliding block can slide left and right in the sliding groove, and a connecting rod rotatably connected to the sliding block is rotatably connected to the first rotating shaft, and the connecting rod is symmetrical about the center of the first transmission shaft; The cam is provided with a connecting plate located at the upper side of the connecting rod, and the connecting plate is symmetrical about the first transmission shaft and is slidably connected to the fixed platform. A transmission cavity is provided in the connecting plate, and a supporting cavity opening upward is provided in the fixed platform, and a bearing plate is provided at the lower side of the bearing plate, and a sliding rod is slidably connected to the fixed platform and slidably connected to the fixed platform. The connecting plate is slidably connected to the sliding plate, and a buffer spring is provided on the lower side of the sliding plate, which is fixedly connected to the inner wall of the transmission cavity, and a supporting rod slidably connected to the connecting plate and extending to the upper side of the connecting plate is fixedly connected to the upper side of the sliding plate, and the sliding rod and the supporting rod are slidably connected. A metal plate is provided on the upper side of the bearing plate, and an extension box is provided on the upper side of the support rod, which abuts against the metal plate, and a pressure plate is fixedly connected to the extension box, which is symmetrical about the first transmission shaft and abuts against the metal plate, and a collecting mechanism is also provided in the body cavity.

2. A metal surface plasma spraying equipment according to claim 1, characterized in that: An expansion cavity is provided in the expansion box, a first motor is fixedly connected to the lower side of the expansion box, a second transmission shaft extending into the expansion cavity is dynamically connected to the first motor, the second transmission shaft is rotatably connected to the expansion box, a reciprocating disk located in the expansion cavity is provided on the second transmission shaft, a reciprocating plate is slidably connected to the inner wall of the expansion cavity, a reciprocating slide groove is provided on the reciprocating plate, and a second rotating shaft located in the reciprocating slide groove and slidably connected to the reciprocating plate is provided on the reciprocating disk.

3. A metal surface plasma spraying equipment according to claim 2, characterized in that: A telescopic box located at the rear side of the extension box is provided on the reciprocating plate, a telescopic cavity is provided in the telescopic box, a telescopic block extending to the upper side of the telescopic cavity is slidably connected in the telescopic cavity, a telescopic spring fixedly connected to the inner wall of the telescopic cavity is fixedly connected to the lower side of the telescopic block, an inclined groove is provided on the upper surface of the extension box close to the metal plate, an inclined push block located in the inclined groove is provided on the telescopic block, and inclined surfaces are provided on both the inclined groove and the inclined push block.

4. The metal surface plasma spraying equipment according to claim 1, characterized in that: A powder box extending into the body cavity is fixedly connected to the body box, a powder cavity is provided in the powder box, a spray head located on the upper side of the metal plate is fixedly connected to the lower side of the powder cavity, and a blocking plate slidably connected to the powder box is fixedly connected to the connecting plate close to the powder box.

5. The metal surface plasma spraying equipment according to claim 1, characterized in that: A heater is arranged in the bearing plate and is located at the lower side of the metal plate. A cooler is fixedly connected to the inner wall of the machine body cavity and is symmetrical with respect to the metal plate.

6. The metal surface plasma spraying equipment according to claim 1, characterized in that: The collecting mechanism includes a recycling box fixedly connected to the inner wall of the body cavity, a recycling chamber is provided in the recycling box, a second motor is fixedly connected to the inner wall of the recycling chamber, the second motor is dynamically connected to a third transmission shaft rotatably connected to the recycling box, a suction fan blade is provided on the third transmission shaft, a filter plate is fixedly connected to the recycling chamber near the metal plate, and a ventilating port is provided on the recycling box to connect the recycling chamber with the outside world.

7. The metal surface plasma spraying equipment according to claim 6, characterized in that: A scraping plate is fixedly connected to the third transmission shaft, and the scraping plate is located on a side of the filter plate away from the second motor. A pushing cavity is provided in the scraping plate, and a vortex groove is provided on the filter plate. A pushing ring slidably connected to the vortex groove is provided with a pushing ring that is slidably connected to the scraping plate. A reset spring located in the pushing cavity and fixedly connected to the inner wall of the pushing cavity is fixedly connected to the pushing ring. A collecting box located at the lower side of the recovery box is provided on the fixed platform, and a collecting cavity opening upward is provided in the collecting box.

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