A recycled plastic filler surface coating spray apparatus and method

Abstract

The application relates to the field of coating spraying technology and discloses a regenerated plastic filler surface coating spraying device and method, which solves the problem that a worker needs to repeatedly take and place workpieces, increases the work intensity of the worker, and the repeated manual movement of the workpieces can easily cause the surface coating of the workpieces to be scratched, and the device comprises a rack, a conveying belt is arranged on the rack, a driving mechanism for driving the conveying belt to move is arranged on the rack, a reciprocating frame is arranged above the conveying belt, a spraying pipe penetrates through the reciprocating frame, bearings are arranged at the connection positions of the spraying pipe and the reciprocating frame, a plurality of upper nozzles for spraying the top surfaces of the workpieces are arranged on the spraying pipe, and a plurality of side nozzles for spraying the side surfaces of the workpieces are arranged on the spraying pipe; the workpieces after spraying can be directly conveyed to the next machining station without being taken down, the work intensity of the worker is reduced, the possibility of the workpiece coating being scratched is reduced, and the device is convenient to use.

Description

Technical Field

[0001] This invention belongs to the field of coating and spraying technology, specifically a coating spraying device and method for recycled plastic fillers. Background Technology

[0002] In the production and processing of recycled plastic fillers, a coating needs to be applied to their surface. When spraying manually, the coating may not be uniform. When using spraying equipment, workers usually need to place the workpiece to be sprayed at the spraying station, spray the workpiece through the nozzle, and then remove the sprayed workpiece. This requires workers to repeatedly pick up and put down the workpiece, which increases their workload. Manually moving the workpiece repeatedly can also easily scratch the coating on the workpiece surface, which has certain limitations. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a coating spraying equipment and method for recycled plastic fillers, which effectively solves the problem in the background art that requires workers to repeatedly pick up and put down the workpiece, which increases the workload of workers, and that repeated manual movement of the workpiece can easily cause scratches on the surface coating of the workpiece.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a surface coating spraying device for recycled plastic fillers, comprising a frame, a conveyor belt on the frame, a drive mechanism for driving the conveyor belt to move on the frame, a reciprocating frame above the conveyor belt, a spraying pipe passing through the reciprocating frame, a bearing at the connection between the spraying pipe and the reciprocating frame, a plurality of upper spray nozzles for spraying the top surface of the workpiece on the spraying pipe, a plurality of side spray nozzles for spraying the sides of the workpiece on the spraying pipe, a meshing sliding component cooperating with the spraying pipe on the frame, fixed plates fixedly connected to both ends of the reciprocating frame, a sliding plate below the fixed plate, the sliding plate and the fixed plate being connected by an elastic reset component, a plurality of push blocks cooperating with the sliding plate fixedly connected to the conveyor belt, an upward push unit cooperating with the sliding plate on the frame, the fixed plate and the frame being connected by a horizontal pulling structure, and a reset and slowing component cooperating with the fixed plate on the frame;

[0005] The reset and deceleration assembly includes a first toothed plate disposed on one side of a fixed plate. The first toothed plate and the fixed plate are connected by a connecting block. A side plate is provided on one side of the first toothed plate, and a rotating shaft passes through the side plate. A bearing is provided at the connection between the rotating shaft and the side plate. A first gear is fixedly connected to the rotating shaft. Support parts are fixedly connected to both sides of the frame. The side plate and the support parts are connected by a connecting frame. A second toothed plate is provided on one side of the side plate. The second toothed plate and the first toothed plate mesh with the first gear. A first guide groove is provided on the side plate. A first guide strip is fixedly connected to the second toothed plate and passes through the first guide groove. Several push plates are fixedly connected to the conveyor belt. An elastic sliding structure that cooperates with the push plates is provided on the second toothed plate.

[0006] Preferably, the elastic sliding structure includes a fixed block fixedly installed on the second toothed plate, a groove is provided on the fixed block, a movable plate is provided in the groove, the top of the movable plate and the top inner wall of the groove are connected by a plurality of first compression springs, a first support block is fixedly connected to the bottom of the movable plate, the first support block is provided with an inclined surface that cooperates with the push plate, a first limiting groove is provided on the inner walls of both sides of the groove, a first limiting block is fixedly connected to both sides of the movable plate, and the first limiting block is located in the first limiting groove.

[0007] Preferably, a second guide groove is provided on the side plate, and a second guide strip is fixedly connected to the first toothed plate, with the second guide strip passing through the second guide groove.

[0008] Preferably, a first mounting plate is fixedly connected to the fixing plate, and a first roller is fixedly connected to the bottom of the first mounting plate, with the bottom of the first roller in contact with the top of the support.

[0009] Preferably, the push unit includes a second support block fixedly installed on one side of the slide plate, a stop block is provided on one side of the second support block, the second support block is provided with an inclined surface that cooperates with the stop block, and the stop block and the frame are fixedly connected.

[0010] Preferably, the elastic reset component includes second limiting blocks that are fixedly installed on both sides of the slide plate. A slide groove is provided on the fixed plate, and second limiting grooves are provided on the inner walls of both sides of the slide groove. The top of the slide plate is located in the slide groove, and the second limiting blocks are located in the second limiting grooves. The top of the slide plate and the top inner wall of the slide groove are connected by a second compression spring.

[0011] Preferably, the horizontal pulling structure includes a guide column fixedly installed on a fixed plate, a support plate sleeved on the outside of the guide column, the support plate being fixedly connected to the frame, a tension spring sleeved on the outside of the guide column, the two ends of the tension spring being fixedly connected to the fixed plate and the support plate respectively, and a stop frame being fixedly connected to the fixed plate, and the stop frame being in contact with the support plate.

[0012] Preferably, the top end of the spray pipe is fitted with a connector, and a bearing is provided at the connection between the connector and the spray pipe. The meshing sliding component includes a second gear fixedly fitted outside the spray pipe. The top of the reciprocating frame is provided with a third toothed plate that meshes with the second gear. The third toothed plate and the frame are connected by a fixed frame. A third guide bar is fixedly connected to the fixed frame. A third guide groove is provided on the reciprocating frame, and the third guide bar passes through the third guide groove.

[0013] Preferably, a support ring is provided below the reciprocating frame, the support ring and the reciprocating frame are connected by several connecting plates, a second mounting plate is fixedly connected to the spray pipe, a second roller is fixedly connected to the second mounting plate, and the second roller is in contact with the top of the support ring.

[0014] The present invention also provides a method for spraying a coating onto the surface of recycled plastic fillers, comprising the above-described equipment for spraying a coating onto the surface of recycled plastic fillers, and including the following steps:

[0015] Step 1: The spray pipe is connected to the external spraying mechanism. The workpiece to be sprayed is placed on the conveyor belt through the feeding equipment, and the conveyor belt is driven to move by the drive mechanism.

[0016] Step 2: When the workpiece placed on the conveyor belt moves to the spraying station, as the conveyor belt continues to move, the pusher pushes the slide plate to move synchronously. The slide plate drives the reciprocating frame and the spraying pipe to move synchronously with the workpiece in the horizontal direction through the fixed plate. The upper spray head sprays the top surface of the workpiece, and the side spray head sprays the side surface of the workpiece. At the same time, the spraying pipe is driven to rotate relative to the reciprocating frame through the meshing sliding parts, so that the upper spray head sprays different positions on the top surface of the workpiece, and the side spray head sprays different positions on the side surface of the workpiece.

[0017] Step 3: After the spray pipe rotates 360 degrees, the sliding plate is pushed upward by the pusher unit so that the sliding plate is no longer located on one side of the pusher block, thus releasing the restriction on the position of the sliding plate and the fixed plate;

[0018] Step 4: The component drives the fixed plate and reciprocating frame to move in the opposite direction by resetting, and at the same time drives the spraying pipe to rotate in the opposite direction by engaging the sliding parts. Finally, the fixed plate and reciprocating frame are reset to the initial position, and the spraying pipe rotates 360 degrees in the opposite direction and then resets to the initial position. The conveyor belt is driven by the drive mechanism to move so that the sprayed workpiece can be moved to the next processing station.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] When a workpiece placed on the conveyor belt moves to the spraying station, the pusher blocks push the slide plate to move synchronously with the continuous movement of the conveyor belt. The slide plate drives the reciprocating frame and the spraying pipe to move synchronously with the workpiece in the horizontal direction via a fixed plate. The upper spray head sprays the top surface of the workpiece, and the side spray head sprays the sides of the workpiece. At the same time, the spraying pipe is driven to rotate relative to the reciprocating frame through a meshing sliding component, so that the upper spray head sprays different positions on the top surface of the workpiece, and the side spray head sprays different positions on the sides of the workpiece. After the spraying pipe rotates 360 degrees, the pusher unit pushes the slide plate upward so that the slide plate is no longer located at the pusher blocks. On one side, the position of the slide plate and the fixed plate is released. By resetting, the component drives the fixed plate and the reciprocating frame to move in the opposite direction. At the same time, the spraying pipe is driven to rotate in the opposite direction by the engaging sliding part. Finally, the fixed plate and the reciprocating frame are reset to the initial position. The spraying pipe rotates 360 degrees in the opposite direction and then resets to the initial position. The drive mechanism drives the conveyor belt to move so that the sprayed workpiece can be moved to the next processing station. The sprayed workpiece does not need to be removed and can be directly transported to the next processing station, which reduces the workload of the workers and reduces the possibility of workpiece coating scratches, making it convenient for practical use. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0022] In the attached diagram:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 A magnified view of a portion of point A in the middle;

[0025] Figure 3 This is a schematic diagram of the horizontal pulling structure of the present invention;

[0026] Figure 4 This is a cross-sectional structural diagram of the fixing plate of the present invention;

[0027] Figure 5 This is a schematic diagram of the side plate of the present invention;

[0028] Figure 6 This is a cross-sectional structural diagram of the fixing block of the present invention;

[0029] Figure 7 This is a schematic diagram of the reciprocating frame of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the fixing frame of the present invention.

[0031] In the diagram: 1. Frame; 2. Conveyor belt; 3. Drive mechanism; 4. Reciprocating frame; 5. Spray pipe; 6. Upper spray head; 7. Side spray head; 8. Fixing plate; 9. Slide plate; 10. Push block; 11. First toothed plate; 12. Connecting block; 13. Side plate; 14. Rotating shaft; 15. First gear; 16. Connecting frame; 17. Support part; 18. Second toothed plate; 19. Fixing block; 20. Groove; 21. Movable plate; 22. First support block; 23. First compression spring; 24. Push plate; 25. First limiting block; 26. First limiting groove; 27. First guide groove; 28. First... 29. Guide bar; 30. Second guide groove; 31. Second guide bar; 32. First mounting plate; 33. First roller; 34. Stop block; 35. Second support block; 36. Second limit block; 37. Slide groove; 38. Second compression spring; 39. Second limit groove; 40. Guide post; 41. Support plate; 42. Tension spring; 43. Stop bracket; 44. Second gear; 45. Third gear plate; 46. Fixing bracket; 47. Third guide bar; 48. Third guide groove; 49. Connector; 50. Support ring; 51. Connecting plate; 52. Second mounting plate; 53. Second roller. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Example 1, by Figures 1 to 8 The present invention includes a frame 1, a conveyor belt 2 on the frame 1, a drive mechanism 3 on the frame 1 for driving the conveyor belt 2 to move, a reciprocating frame 4 above the conveyor belt 2, a spraying pipe 5 passing through the reciprocating frame 4, a bearing at the connection between the spraying pipe 5 and the reciprocating frame 4, a plurality of upper spray nozzles 6 for spraying the top surface of the workpiece on the spraying pipe 5, a plurality of side spray nozzles 7 for spraying the side surface of the workpiece on the spraying pipe 5, a meshing sliding member on the frame 1 that cooperates with the spraying pipe 5, fixed plates 8 fixedly connected to both ends of the reciprocating frame 4, a sliding plate 9 below the fixed plate 8, the sliding plate 9 and the fixed plate 8 connected by an elastic reset member, a plurality of push blocks 10 that cooperate with the sliding plate 9 fixedly connected to the conveyor belt 2, an upward push unit that cooperates with the sliding plate 9 on the frame 1, the fixed plate 8 and the frame 1 connected by a horizontal pulling structure, and a reset and slowing component that cooperates with the fixed plate 8 on the frame 1.

[0034] The reset mitigation assembly includes a first toothed plate 11 disposed on one side of the fixed plate 8. The first toothed plate 11 and the fixed plate 8 are connected by a connecting block 12. A side plate 13 is provided on one side of the first toothed plate 11, and a rotating shaft 14 passes through the side plate 13. A bearing is provided at the connection between the rotating shaft 14 and the side plate 13. A first gear 15 is fixedly connected to the rotating shaft 14. Support parts 17 are fixedly connected to both sides of the frame 1, and the side plate 13 and the support parts 17 are connected by a connecting frame 16. A second toothed plate 18 is provided on one side of the side plate 13. The second toothed plate 18 and the first toothed plate 11... 1. It meshes with the first gear 15. The side plate 13 has a first guide groove 27. The second toothed plate 18 is fixedly connected to the first guide strip 28, which passes through the first guide groove 27. Several push plates 24 are fixedly connected to the conveyor belt 2. The second toothed plate 18 has an elastic sliding structure that cooperates with the push plates 24. When the workpiece placed on the conveyor belt 2 moves to the spraying station, as the conveyor belt 2 moves continuously, the push block 10 pushes the slide plate 9 to move synchronously. The slide plate 9 drives the reciprocating frame 4 and the spraying pipe 5 through the fixed plate 8. As the workpiece moves horizontally in sync, the upper spray nozzle 6 sprays the top surface of the workpiece, and the side spray nozzle 7 sprays the sides of the workpiece. Simultaneously, the spray pipe 5 rotates relative to the reciprocating frame 4 via a meshing sliding component, allowing the upper spray nozzle 6 to spray different positions on the top surface of the workpiece, and the side spray nozzle 7 to spray different positions on the sides of the workpiece. After the spray pipe 5 rotates 360 degrees, the upward pushing unit pushes the slide plate 9 upward, so that the slide plate 9 is no longer located on one side of the push block 10, releasing the restriction on the position of the slide plate 9 and the fixed plate 8. This is then mitigated by the reset and deceleration assembly. The fixed plate 8 and the reciprocating frame 4 move in opposite directions, and the spraying pipe 5 is driven to rotate in the opposite direction through the meshing sliding parts. Finally, the fixed plate 8 and the reciprocating frame 4 are reset to the initial position. After the spraying pipe 5 rotates 360 degrees in the opposite direction, it is reset to the initial position. The conveyor belt 2 is driven to move through the drive mechanism 3 so that the sprayed workpiece can be moved to the next processing station. The sprayed workpiece does not need to be removed and can be directly transported to the next processing station, which reduces the workload of the workers and reduces the possibility of workpiece coating scratches, making it convenient for practical use.

[0035] Example 2, based on Example 1, is... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The elastic sliding structure includes a fixing block 19 fixedly mounted on the second toothed plate 18, a groove 20 on the fixing block 19, a movable plate 21 inside the groove 20, the top of the movable plate 21 and the top inner wall of the groove 20 being connected by several first compression springs 23, a first support block 22 fixedly connected to the bottom of the movable plate 21, the first support block 22 having an inclined surface that cooperates with the push plate 24, first limiting grooves 26 being respectively opened on the inner walls of both sides of the groove 20, first limiting blocks 25 being fixedly connected to both sides of the movable plate 21 and the first limiting blocks 25 being located in the first limiting grooves 26, a second guide groove 29 being opened on the side plate 13, a second guide strip 30 being fixedly connected to the first toothed plate 11 and the second guide strip 30 passing through the second guide groove 29, a first mounting plate 31 being fixedly connected to the fixing plate 8, a first roller 32 being fixedly connected to the bottom of the first mounting plate 31 and the bottom of the first roller 32 contacting the top of the support part 17;

[0036] When the pusher 10 pushes the slide plate 9 and the fixed plate 8 to move horizontally, the fixed plate 8 drives the connecting block 12 and the first toothed plate 11 to move. The first toothed plate 11 drives the first gear 15 to rotate. The first gear 15 drives the fixed block 19 and the second toothed plate 18 to move in opposite directions relative to the first toothed plate 11. Through the design of the first guide groove 27 and the first guide strip 28, the second toothed plate 18 slides smoothly horizontally relative to the side plate 13. After the spray pipe 5 rotates 360 degrees, the pusher unit pushes the slide plate 9 upward, so that the slide plate 9... No longer located on one side of push block 10, and at this time the push plate 24 and the inclined surface on the first support block 22 are in contact. As the conveyor belt 2 continues to move, the push plate 24 pushes the first support block 22, the fixed block 19 and the second toothed plate 18 to move, so that the second toothed plate 18 drives the first gear 15 to rotate in the opposite direction. The first gear 15 drives the fixed plate 8 and the reciprocating frame 4 to move in the opposite direction through the first toothed plate 11, and at the same time drives the spray pipe 5 to rotate in the opposite direction through the meshing sliding member. Finally, the fixed plate 8 and the reciprocating frame 4 are reset to the initial position, and the spray pipe 5 rotates in the opposite direction. After rotating 360 degrees, the fixed plate 8 returns to its initial position. When the fixed plate 8 and the reciprocating frame 4 return to their initial positions, the fixed plate 8 stops moving. As the conveyor belt 2 and the push plate 24 continue to move, the first support block 22 moves upward relative to the push plate 24. The first support block 22 drives the movable plate 21 to move upward. The first compression spring 23 is in a compressed state, and the first limiting block 25 slides within the first limiting groove 26. Through the design of the first limiting block 25 and the first limiting groove 26, the movable plate 21 moves smoothly in the vertical direction relative to the fixed block 19. As the conveyor belt 2 and push plate 24 continue to move, after the push plate 24 slides under the first support block 22, the first compression spring 23 drives the movable plate 21 and the first support block 22 to move down, so that the first support block 22 can be reset to the initial height. Through the design of the second guide groove 29 and the second guide bar 30, the first toothed plate 11 slides smoothly relative to the side plate 13. Through the design of the first mounting plate 31, the first roller 32 and the support part 17, the fixed plate 8 slides smoothly relative to the frame 1 in the horizontal direction.

[0037] Example 3, based on Example 1, is... Figure 1 , Figure 2 and Figure 4 The push unit includes a second support block 34 fixedly installed on one side of the slide plate 9. A stop block 33 is provided on one side of the second support block 34. The second support block 34 has an inclined surface that cooperates with the stop block 33. The stop block 33 is fixedly connected to the frame 1. The elastic reset component includes a second limiting block 35 fixedly installed on both sides of the slide plate 9. A slide groove 36 is provided on the fixed plate 8. Second limiting grooves 38 are provided on the inner walls of both sides of the slide groove 36. The top of the slide plate 9 is located in the slide groove 36, and the second limiting block 35 is located in the second limiting groove 38. The top of the slide plate 9 and the top inner wall of the slide groove 36 are connected by a second compression spring 37.

[0038] When the pusher 10 pushes the slide plate 9 and the fixed plate 8 to move horizontally, so that the second support block 34 and the stop block 33 fixedly installed on the slide plate 9 come into contact, as the conveyor belt 2 and the pusher 10 continue to move, the second support block 34 slides relative to the stop block 33, the slide plate 9 slides relative to the fixed plate 8, the second compression spring 37 is in a compressed state, and the second limit block 35 slides in the second limit groove 38. Through the design of the second limit block 35 and the second limit groove 38, the slide plate 9 moves smoothly in the vertical direction relative to the fixed plate 8. When the spray pipe 5 rotates 360 degrees, the slide plate 9 is no longer located on one side of the pusher 10. As the conveyor belt 2 and the pusher 10 continue to move, when the pusher 10 slides past the bottom of the slide plate 9, the second compression spring 37 drives the slide plate 9 to move down, so that the slide plate 9 returns to its initial height.

[0039] Example 4, based on Example 1, is... Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 The horizontal pulling structure includes a guide post 39 fixedly mounted on a fixed plate 8. A support plate 40 is sleeved on the outside of the guide post 39, and the support plate 40 is fixedly connected to the frame 1. A tension spring 41 is sleeved on the outside of the guide post 39, and the two ends of the tension spring 41 are fixedly connected to the fixed plate 8 and the support plate 40 respectively. A stop bracket 42 is fixedly connected to the fixed plate 8, and the stop bracket 42 is in contact with the support plate 40. A connector 48 is sleeved on the top end of the spray pipe 5, and a bearing is provided at the connection between the connector 48 and the spray pipe 5. The meshing sliding component includes a second gear 4 fixedly sleeved on the outside of the spray pipe 5. 3. The top of the reciprocating frame 4 is provided with a third toothed plate 44 that meshes with the second gear 43. The third toothed plate 44 and the frame 1 are connected by a fixed frame 45. A third guide bar 46 is fixedly connected to the fixed frame 45. A third guide groove 47 is opened on the reciprocating frame 4, and the third guide bar 46 passes through the third guide groove 47. A support ring 49 is provided below the reciprocating frame 4. The support ring 49 and the reciprocating frame 4 are connected by several connecting plates 50. A second mounting plate 51 is fixedly connected to the spray pipe 5. A second roller 52 is fixedly connected to the second mounting plate 51. The second roller 52 is in contact with the top of the support ring 49.

[0040] When pusher 10 pushes slide plate 9 and fixed plate 8 to move horizontally, reciprocating frame 4 and second gear 43 move synchronously horizontally. Second gear 43 rolls on third gear plate 44, causing spray pipe 5 to rotate relative to reciprocating frame 4. At the same time, guide post 39 moves with fixed plate 8, tension spring 41 is in tension, and tension spring 41 applies tension to fixed plate 8 to keep slide plate 9 in close contact with pusher 10, preventing fixed plate 8 and reciprocating frame 4 from shaking when moving horizontally. When fixed plate 8 moves in the opposite direction and returns to its initial position, stop bracket 42 and support plate 40 fixedly installed on fixed plate 8 come into contact, allowing fixed plate 8 to return to its initial position. After stopping, the design of the third guide bar 46 and the third guide groove 47 allows the fixed frame 45 and the reciprocating frame 4 to slide together. The reciprocating frame 4 supports the fixed frame 45, reducing the possibility of tilting and swaying of the fixed frame 45 and the third toothed plate 44. The connector 48 is connected to the output end of the spraying mechanism. When the spraying pipe 5 rotates, the spraying pipe 5 can rotate relative to the connector 48. When the spraying pipe 5 rotates, the spraying pipe 5 drives the second mounting plate 51 and the second roller 52 to slide above the support ring 49. Through the design of the support ring 49, the connecting plate 50, the second mounting plate 51 and the second roller 52, the spraying pipe 5 can rotate smoothly relative to the reciprocating frame 4.

[0041] This embodiment provides a method for spraying a coating onto the surface of recycled plastic fillers, including the aforementioned equipment for spraying a coating onto the surface of recycled plastic fillers, and comprising the following steps:

[0042] Step 1: The spray pipe 5 is connected to the external spraying mechanism. The workpiece to be sprayed is placed on the conveyor belt 2 through the feeding equipment, and the conveyor belt 2 is driven to move through the drive mechanism 3.

[0043] Step 2: When the workpiece placed on the conveyor belt 2 moves to the spraying station, as the conveyor belt 2 continues to move, the pusher block 10 pushes the slide plate 9 to move synchronously. The slide plate 9 drives the reciprocating frame 4 and the spraying pipe 5 to move synchronously with the workpiece in the horizontal direction through the fixed plate 8. The upper spray head 6 sprays the top surface of the workpiece, and the side spray head 7 sprays the side surface of the workpiece. At the same time, the spraying pipe 5 is driven to rotate relative to the reciprocating frame 4 through the meshing sliding parts, so that the upper spray head 6 sprays different positions on the top surface of the workpiece, and the side spray head 7 sprays different positions on the side surface of the workpiece.

[0044] Step 3: After the spray pipe 5 rotates 360 degrees, the sliding plate 9 is pushed upward by the push unit so that the sliding plate 9 is no longer located on one side of the push block 10, thus releasing the restriction on the position of the sliding plate 9 and the fixed plate 8.

[0045] Step 4: The component drives the fixed plate 8 and the reciprocating frame 4 to move in the opposite direction by resetting, and at the same time drives the spraying pipe 5 to rotate in the opposite direction by engaging the sliding parts. Finally, the fixed plate 8 and the reciprocating frame 4 are reset to the initial position, and the spraying pipe 5 is reset to the initial position after rotating 360 degrees in the opposite direction. The conveyor belt 2 is driven to move by the drive mechanism 3 so that the sprayed workpiece can be moved to the next processing station.

[0046] Working Principle: The spray pipe 5 is connected to an external spraying mechanism. The workpiece to be sprayed is placed on the conveyor belt 2 by the feeding device. The drive mechanism 3 drives the conveyor belt 2 to move. When the workpiece on the conveyor belt 2 moves to the spraying station, the workpiece moves to one side of the side spray head 7, and the upper spray head 6 is located above the workpiece. The push block 10 and the slide plate 9 at the spraying station are in contact. As the conveyor belt 2 continues to move, the push block 10 pushes the slide plate 9 to move synchronously. The slide plate 9 drives the reciprocating frame 4 and the spray pipe 5 to move synchronously with the workpiece in the horizontal direction through the fixed plate 8. The upper spray head 6 sprays the top surface of the workpiece, and the side spray head 7 sprays the side surface of the workpiece. At the same time, the spray pipe 5 is driven to rotate relative to the reciprocating frame 4 through the meshing sliding parts, so that the upper spray head 6 sprays different positions on the top surface of the workpiece, and the side spray head 7 sprays different positions on the side surface of the workpiece. When the spraying pipe 5 rotates 360 degrees, the pusher unit pushes the slide plate 9 upward so that the slide plate 9 is no longer located on the side of the pusher block 10, thus releasing the restriction on the position of the slide plate 9 and the fixed plate 8. As the conveyor belt 2 continues to move, the pusher block 10 slides under the slide plate 9. At this time, the reset slowing component drives the fixed plate 8 and the reciprocating frame 4 to move in the opposite direction. At the same time, the spraying pipe 5 is driven to rotate in the opposite direction through the meshing sliding parts. Finally, the fixed plate 8 and the reciprocating frame 4 are reset to their initial positions. After the spraying pipe 5 rotates 360 degrees in the opposite direction, it is reset to its initial position. The drive mechanism 3 drives the conveyor belt 2 to move so that the sprayed workpiece can be moved to the next processing station. The sprayed workpiece does not need to be removed and can be directly transported to the next processing station, reducing the workload of the workers and reducing the possibility of workpiece coating scratches, which is convenient for practical use.

[0047] When the pusher 10 pushes the slide plate 9 and the fixed plate 8 to move horizontally, the fixed plate 8 drives the connecting block 12 and the first toothed plate 11 to move. The first toothed plate 11 drives the first gear 15 to rotate. The first gear 15 drives the fixed block 19 and the second toothed plate 18 to move in opposite directions relative to the first toothed plate 11. Through the design of the first guide groove 27 and the first guide strip 28, the second toothed plate 18 slides smoothly horizontally relative to the side plate 13. After the spray pipe 5 rotates 360 degrees, the pusher unit pushes the slide plate 9 upward, so that the slide plate 9... No longer located on one side of push block 10, and at this time the push plate 24 and the inclined surface on the first support block 22 are in contact. As the conveyor belt 2 continues to move, the push plate 24 pushes the first support block 22, the fixed block 19 and the second toothed plate 18 to move, so that the second toothed plate 18 drives the first gear 15 to rotate in the opposite direction. The first gear 15 drives the fixed plate 8 and the reciprocating frame 4 to move in the opposite direction through the first toothed plate 11, and at the same time drives the spray pipe 5 to rotate in the opposite direction through the meshing sliding member. Finally, the fixed plate 8 and the reciprocating frame 4 are reset to the initial position, and the spray pipe 5 rotates in the opposite direction. After rotating 360 degrees, the fixed plate 8 returns to its initial position. When the fixed plate 8 and the reciprocating frame 4 return to their initial positions, the fixed plate 8 stops moving. As the conveyor belt 2 and the push plate 24 continue to move, the first support block 22 moves upward relative to the push plate 24. The first support block 22 drives the movable plate 21 to move upward. The first compression spring 23 is in a compressed state, and the first limiting block 25 slides within the first limiting groove 26. Through the design of the first limiting block 25 and the first limiting groove 26, the movable plate 21 moves smoothly in the vertical direction relative to the fixed block 19. As the conveyor belt 2 and push plate 24 continue to move, after the push plate 24 slides under the first support block 22, the first compression spring 23 drives the movable plate 21 and the first support block 22 to move down, so that the first support block 22 can be reset to the initial height. Through the design of the second guide groove 29 and the second guide bar 30, the first toothed plate 11 slides smoothly relative to the side plate 13. Through the design of the first mounting plate 31, the first roller 32 and the support part 17, the fixed plate 8 slides smoothly relative to the frame 1 in the horizontal direction.

[0048] When pusher 10 pushes slide plate 9 and fixed plate 8 to move horizontally, so that second support block 34 and stop block 33 fixedly installed on slide plate 9 come into contact, as conveyor belt 2 and pusher 10 continue to move, second support block 34 slides relative to stop block 33, slide plate 9 slides relative to fixed plate 8, second compression spring 37 is in a compressed state, and second limit block 35 slides in second limit groove 38. Through the design of second limit block 35 and second limit groove 38, slide plate 9 moves smoothly in the vertical direction relative to fixed plate 8. When spray pipe 5 rotates 360 degrees, slide plate 9 is no longer located on one side of pusher 10. As conveyor belt 2 and pusher 10 continue to move, when pusher 10 slides past the bottom of slide plate 9, second compression spring 37 drives slide plate 9 to move down, so that slide plate 9 returns to its initial height.

[0049] When pusher 10 pushes slide plate 9 and fixed plate 8 to move horizontally, reciprocating frame 4 and second gear 43 move synchronously horizontally. Second gear 43 rolls on third gear plate 44, causing spray pipe 5 to rotate relative to reciprocating frame 4. At the same time, guide post 39 moves with fixed plate 8, tension spring 41 is in tension, and tension spring 41 applies tension to fixed plate 8 to keep slide plate 9 in close contact with pusher 10, preventing fixed plate 8 and reciprocating frame 4 from shaking when moving horizontally. When fixed plate 8 moves in the opposite direction and returns to its initial position, stop bracket 42 and support plate 40 fixedly installed on fixed plate 8 come into contact, allowing fixed plate 8 to return to its initial position. After stopping, the design of the third guide bar 46 and the third guide groove 47 allows the fixed frame 45 and the reciprocating frame 4 to slide together. The reciprocating frame 4 supports the fixed frame 45, reducing the possibility of tilting and swaying of the fixed frame 45 and the third toothed plate 44. The connector 48 is connected to the output end of the spraying mechanism. When the spraying pipe 5 rotates, the spraying pipe 5 can rotate relative to the connector 48. When the spraying pipe 5 rotates, the spraying pipe 5 drives the second mounting plate 51 and the second roller 52 to slide above the support ring 49. Through the design of the support ring 49, the connecting plate 50, the second mounting plate 51 and the second roller 52, the spraying pipe 5 can rotate smoothly relative to the reciprocating frame 4.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface coating spraying device for recycled plastic fillers, comprising a frame (1), a conveyor belt (2) mounted on the frame (1), and a drive mechanism (3) for driving the conveyor belt (2) to move on the frame (1), characterized in that: A reciprocating frame (4) is provided above the conveyor belt (2), and a spraying pipe (5) is passed through the reciprocating frame (4). A bearing is provided at the connection between the spraying pipe (5) and the reciprocating frame (4). Several upper spray nozzles (6) for spraying the top surface of the workpiece are provided on the spraying pipe (5). Several side spray nozzles (7) for spraying the side surface of the workpiece are provided on the spraying pipe (5). A meshing sliding component that cooperates with the spraying pipe (5) is provided on the frame (1). Fixed plates (8) are fixedly connected to both ends of the reciprocating frame (4). A sliding plate (9) is provided below the fixed plate (8). The sliding plate (9) and the fixed plate (8) are connected by an elastic reset component. Several push blocks (10) that cooperate with the sliding plate (9) are fixedly connected to the conveyor belt (2). An upward push unit that cooperates with the sliding plate (9) is provided on the frame (1). The fixed plate (8) and the frame (1) are connected by a horizontal pulling structure. A reset and slowing component that cooperates with the fixed plate (8) is provided on the frame (1). The reset mitigation assembly includes a first toothed plate (11) disposed on one side of the fixed plate (8). The first toothed plate (11) and the fixed plate (8) are connected by a connecting block (12). A side plate (13) is provided on one side of the first toothed plate (11). A rotating shaft (14) passes through the side plate (13). A bearing is provided at the connection between the rotating shaft (14) and the side plate (13). A first gear (15) is fixedly connected to the rotating shaft (14). Support parts (17) are fixedly connected to both sides of the frame (1). The side plate (13) and the support parts (17) are connected by a connecting block (12). The frame (16) is connected, and a second toothed plate (18) is provided on one side of the side plate (13). The second toothed plate (18) and the first toothed plate (11) are respectively meshed with the first gear (15). A first guide groove (27) is provided on the side plate (13). A first guide strip (28) is fixedly connected on the second toothed plate (18), and the first guide strip (28) passes through the first guide groove (27). Several push plates (24) are fixedly connected on the conveyor belt (2). An elastic sliding structure that cooperates with the push plate (24) is provided on the second toothed plate (18). The elastic sliding structure includes a fixed block (19) fixedly installed on the second toothed plate (18), a groove (20) is provided on the fixed block (19), a movable plate (21) is provided in the groove (20), the top of the movable plate (21) and the top inner wall of the groove (20) are connected by a number of first compression springs (23), a first support block (22) is fixedly connected to the bottom of the movable plate (21), the first support block (22) is provided with an inclined surface that cooperates with the push plate (24), the inner walls on both sides of the groove (20) are respectively provided with first limiting grooves (26), the two sides of the movable plate (21) are respectively fixedly connected with first limiting blocks (25), and the first limiting blocks (25) are located in the first limiting grooves (26); The push unit includes a second support block (34) fixedly installed on one side of the slide plate (9). A stop block (33) is provided on one side of the second support block (34). An inclined surface that cooperates with the stop block (33) is provided on the second support block (34). The stop block (33) and the frame (1) are fixedly connected. The horizontal pulling structure includes a guide column (39) fixedly installed on a fixed plate (8), a support plate (40) is sleeved on the outside of the guide column (39), the support plate (40) is fixedly connected to the frame (1), a tension spring (41) is sleeved on the outside of the guide column (39), the two ends of the tension spring (41) are fixedly connected to the fixed plate (8) and the support plate (40) respectively, and a stop frame (42) is fixedly connected on the fixed plate (8), and the stop frame (42) is in contact with the support plate (40).

2. The surface coating spraying equipment for recycled plastic fillers according to claim 1, characterized in that: The side plate (13) is provided with a second guide groove (29), and a second guide strip (30) is fixedly connected to the first toothed plate (11), and the second guide strip (30) passes through the second guide groove (29).

3. The surface coating spraying equipment for recycled plastic fillers according to claim 1, characterized in that: A first mounting plate (31) is fixedly connected to the fixed plate (8), and a first roller (32) is fixedly connected to the bottom of the first mounting plate (31), with the bottom of the first roller (32) in contact with the top of the support part (17).

4. The surface coating spraying equipment for recycled plastic fillers according to claim 1, characterized in that: The elastic reset component includes second limiting blocks (35) fixedly installed on both sides of the slide plate (9). A sliding groove (36) is provided on the fixed plate (8). Second limiting grooves (38) are provided on the inner walls of both sides of the sliding groove (36). The top of the slide plate (9) is located in the sliding groove (36), and the second limiting block (35) is located in the second limiting groove (38). The top of the slide plate (9) and the top inner wall of the sliding groove (36) are connected by a second compression spring (37).

5. The surface coating spraying equipment for recycled plastic fillers according to claim 1, characterized in that: The top end of the spray pipe (5) is fitted with a connector (48), and a bearing is provided at the connection between the connector (48) and the spray pipe (5). The meshing sliding component includes a second gear (43) fixedly fitted outside the spray pipe (5). The top of the reciprocating frame (4) is provided with a third tooth plate (44) that meshes with the second gear (43). The third tooth plate (44) and the frame (1) are connected by a fixed frame (45). A third guide bar (46) is fixedly connected to the fixed frame (45). A third guide groove (47) is opened on the reciprocating frame (4), and the third guide bar (46) passes through the third guide groove (47).

6. The surface coating spraying equipment for recycled plastic fillers according to claim 1, characterized in that: A support ring (49) is provided below the reciprocating frame (4). The support ring (49) and the reciprocating frame (4) are connected by several connecting plates (50). A second mounting plate (51) is fixedly connected to the spray pipe (5). A second roller (52) is fixedly connected to the second mounting plate (51). The second roller (52) is in contact with the top of the support ring (49).

7. A method for spraying a coating onto the surface of recycled plastic fillers, comprising the coating spraying equipment for recycled plastic fillers as described in claim 1, characterized in that: Includes the following steps: Step 1: The spray pipe (5) is connected to the external spraying mechanism. The workpiece to be sprayed is placed on the conveyor belt (2) through the feeding equipment. The conveyor belt (2) is driven to move by the drive mechanism (3). Step 2: When the workpiece placed on the conveyor belt (2) moves to the spraying station, as the conveyor belt (2) continues to move, the push block (10) pushes the slide plate (9) to move synchronously. The slide plate (9) drives the reciprocating frame (4) and the spraying pipe (5) to move synchronously with the horizontal direction of the workpiece through the fixed plate (8). The upper nozzle (6) sprays the top surface of the workpiece, and the side nozzle (7) sprays the side surface of the workpiece. At the same time, the spraying pipe (5) is driven to rotate relative to the reciprocating frame (4) through the meshing sliding parts, so that the upper nozzle (6) sprays different positions on the top surface of the workpiece, and the side nozzle (7) sprays different positions on the side surface of the workpiece. Step 3: After the spray pipe (5) rotates 360 degrees, the slide plate (9) is pushed up by the push unit so that the slide plate (9) is no longer located on one side of the push block (10), thus releasing the restriction on the position of the slide plate (9) and the fixed plate (8); Step 4: The component drives the fixed plate (8) and reciprocating frame (4) to move in the opposite direction by resetting and slowing down the movement. At the same time, the spraying pipe (5) is driven to rotate in the opposite direction by the meshing sliding parts. Finally, the fixed plate (8) and reciprocating frame (4) are reset to the initial position. The spraying pipe (5) rotates 360 degrees in the opposite direction and then resets to the initial position. The conveyor belt (2) is driven to move by the drive mechanism (3) so that the sprayed workpiece can be moved to the next processing station.

Images