A sandblasting device for automobile hardware electroplating

Abstract

The invention discloses a sandblasting device for automobile hardware electroplating, comprising a box body, a plurality of sandblasting nozzles are arranged on the inner wall of the box body, a conveyor belt is arranged inside the box body; a suspension component is arranged on the conveyor belt, the suspension component is used to place workpieces, a baffle is arranged on the inner side of the conveyor belt, a driving component matched with the suspension component is arranged on the baffle, the suspension component is driven to rotate by the conveyor belt, and when the suspension component drives the workpiece suspended on the outer side thereof to move to the driving component, the driving component drives the suspension component to rotate relative to the conveyor belt and clamps the workpiece between the suspension component and the conveyor belt; in the process of driving the hanging rod and the workpiece to rotate by the conveyor belt, the workpiece can be reversed relative to the conveyor belt, so that the side of the workpiece originally close to the conveyor belt and difficult to be polished is reversed to the outside, which is conducive to polishing it by the sandblasting nozzle, and the arranged hanging rod also makes it convenient for staff to take and hang the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of hardware processing, in particular to a sandblasting device for automobile hardware electroplating. Background Art

[0002] Sandblasting machine is a machine that uses compressed air as its source power. It mixes compressed air with abrasive and sprays it at high speed onto the outer surface of the workpiece to be processed, so that the mechanical properties of the outer surface of the workpiece are changed. By making the surface of the workpiece obtain a certain degree of cleanliness and roughness, the adhesion between the workpiece and the subsequent coating is increased, thereby greatly improving the quality of electroplating.

[0003] Chinese invention patent CN110712133A discloses a sandblasting device for metal electroplating, including a box body, a servo motor is provided in the middle of the bottom end of the box body, the top end of the servo motor is fixedly connected to a rotating shaft, the top end of the rotating shaft is fixedly connected to a connecting block, the bottom of the connecting block is fixedly connected to a protective cylinder located outside the rotating shaft, a discharge port is provided in the middle of the bottom end of the box body, the bottom of the discharge port is fixedly connected to a discharge pipe, and the bottom end of the discharge pipe is fixedly connected to the fixed pipe. The present invention uses a fixed rod, a connecting block, a rotating shaft and a servo motor to enable the workpiece to be sandblasted on both sides while rotating, ensuring that the surface of the workpiece can be fully sprayed with sand, and the contact effect between the workpiece and the sand is uniform, which greatly improves the grinding quality of the workpiece and avoids the phenomenon of excessive or too light local grinding of the workpiece, thereby improving the rationality and reliability of the device.

[0004] During the sandblasting process, the above-mentioned device places the workpiece on the fixed rod, and then drives the fixed rod and the workpiece to rotate through the center rod to perform sandblasting and grinding operations. However, during actual use, when multiple fixed rods are hung with workpieces, the distance between two adjacent workpieces is relatively close, especially when the workpieces are facing back to back, the inner side of the workpiece is difficult to contact the sand sprayed by the nozzle, which in turn affects the area of ​​the workpiece that contacts the sand, which is not conducive to grinding the workpiece. In summary, the above-mentioned device still has certain shortcomings during use.

[0005] Therefore, it is necessary to provide a kind of automobile hardware electroplating sandblasting device to solve the above-mentioned technical problems. Summary of the invention

[0006] The object of the present invention is to provide a sandblasting device for automobile hardware electroplating, so as to solve the problem that in the existing device proposed in the above background technology, the workpiece is placed on a fixed rod during the sandblasting process, and then the fixed rod and the workpiece are driven to rotate by the center rod to perform sandblasting and grinding operations. However, during actual use, when multiple fixed rods are full of workpieces, the distance between two adjacent workpieces is relatively close, especially when the workpieces are facing away from each other, the inner side of the workpiece is difficult to contact the frosting sprayed by the nozzle, thereby affecting the area of ​​the workpiece contacting the frosting, which is not conducive to grinding the workpiece.

[0007] Based on the above ideas, the present invention provides the following technical solution: comprising a box body, a plurality of sandblasting nozzles are arranged on the inner wall of the box body, and a conveyor belt is arranged inside the box body;

[0008] A suspension assembly is provided on the conveyor belt, and the suspension assembly is used to place workpieces. A baffle is arranged on the inner side of the conveyor belt, and a driving assembly matching with the suspension assembly is provided on the baffle. The suspension assembly is driven to rotate by the conveyor belt, and when the suspension assembly drives the workpiece suspended on its outer side to move to the driving assembly, the driving assembly drives the suspension assembly to rotate relative to the conveyor belt and clamps the workpiece between the suspension assembly and the conveyor belt.

[0009] As a further solution of the present invention: the suspension assembly includes a connecting plate arranged on the outside of the conveyor belt, the number of connecting plates is set to be multiple, and multiple hanging rods are arranged between two adjacent connecting plates on the same side of the conveyor belt, the hanging rods and the connecting plates are both arranged in an arc shape, the connecting plate and the hanging rod, and the two adjacent hanging rods are fixedly connected by the connecting rod, a fixed shaft is arranged on the inner side of the hanging rod, both ends of the fixed shaft are fixedly sleeved with rings, and a support rod is fixedly connected between the ring and the connecting plate, a protrusion is fixedly connected to the side of the conveyor belt, the fixed shaft passes through the protrusion and is rotatably connected to it, both ends of the fixed shaft are fixedly sleeved with gears, and the sides of the connecting plate and the hanging rod are fixedly connected with limiting blocks.

[0010] As a further solution of the present invention: the driving assembly includes a first rotating rack and a first reset rack which are arranged on both sides of the top end of the conveyor belt and meshed with the gear, and a second rotating rack and a second reset rack which are arranged on both sides of the bottom end of the conveyor belt and meshed with the gear, the two sides of the baffle are recessed inward to form a groove, the bottom surface of the inner cavity of the groove is set as an inner concave surface, and the side surface of the baffle protruding outward is set as an extrusion surface.

[0011] As a further solution of the present invention: rollers are provided at both ends of the conveyor belt, a plurality of annular grooves are provided on the outer side of the rollers, and the hanging rods and the connecting plates are matched with the annular grooves.

[0012] As a further solution of the present invention: positioning grooves are opened on both side surfaces of the baffle, and a positioning strip matching the positioning grooves is fixedly arranged on the inner side surface of the conveyor belt, the positioning strip is slidably arranged inside the positioning groove, and the cross-sections of the positioning strip and the positioning groove are both set to be T-shaped.

[0013] As a further solution of the present invention: a plurality of through slots matching with the hanging rods and notches matching with the connecting plates are provided on the side surface of the conveyor belt, and the two notches are connected by a strip groove.

[0014] As a further solution of the present invention: the second rotating rack and the second reset rack are both fixedly connected to the baffle via a U-shaped support rod, and the first rotating rack and the first reset rack are fixedly connected to the baffle via an L-shaped fixing rod.

[0015] As a further solution of the present invention: a U-shaped support frame is provided at the drum, and both ends of the drum are fixedly connected with a rotating shaft, and one end of the rotating shaft away from the drum passes through the support frame and is rotatably connected to the support frame.

[0016] As a further solution of the present invention: a connecting shaft is fixedly arranged on the end surface of the support frame away from the conveyor belt, the connecting shaft is rotatably connected to the box body, and the connecting shaft located on the bottom support frame passes downward through the box body and is transmission-connected to the external first motor.

[0017] As a further solution of the present invention: a second motor is arranged on the bottom support frame, and the rotating shaft on the drum passes through the support frame and is drivingly connected to the second motor.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: in the process of the conveyor belt driving the hanging rod and the workpiece to rotate, the workpiece can be reversed relative to the conveyor belt, so that the side of the workpiece that was originally close to the conveyor belt and difficult to grind is reversed to the outside, which is conducive to grinding it with a sandblasting nozzle, and when the hanging rod is in the inner concave surface area of ​​the baffle, the hanging rod is in a horizontal state, which is convenient for the staff to pick up and hang the workpiece, and the operation is more convenient. In actual use, the first motor drives the support frame and the conveyor belt to rotate, which is conducive to all-round grinding of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the conveyor belt of the present invention inside the box;

[0022] Figure 3 It is a schematic diagram of the conveyor belt and support frame structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the hanging rod structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the baffle structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the annular groove structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the through groove and strip groove structure of the present invention;

[0027] Figure 8 The present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0028] Fig. 9 The present invention Figure 5 A schematic diagram of the enlarged structure at B;

[0029] Fig.10 It is a schematic diagram of the positioning groove structure of the present invention;

[0030] Fig.11 It is a schematic diagram of the positioning bar structure of the present invention.

[0031] In the figure: 1. box body; 2. sandblasting tube; 3. support frame; 4. sandblasting nozzle; 5. conveyor belt; 6. sand discharge trough; 7. gear; 8. connecting shaft; 9. first reset rack; 10. first rotating rack; 11. connecting rod; 12. connecting plate; 13. support rod; 14. fixed shaft; 15. workpiece; 16. limit block; 17. hanging rod; 18. roller; 19. annular groove; 20. door panel; 21. second reset rack; 22. top pressure surface; 23. second rotating rack; 24. baffle; 25. concave surface; 26. rotating shaft; 27. fixed plate; 28. through groove; 29. ​​strip groove; 30. convex block; 31. support rod; 32. positioning groove; 33. positioning strip. DETAILED DESCRIPTION

[0032] like Figure 1-2 As shown, a sandblasting device for automobile hardware electroplating includes a box body 1, a conveyor belt 5 for conveying a workpiece 15 is arranged inside the box body 1, rollers 18 are arranged at both ends of the conveyor belt 5, and a U-shaped support frame 3 is arranged at the roller 18. Specifically, a rotating shaft 26 is fixedly connected to both ends of the roller 18, and the end of the rotating shaft 26 away from the roller 18 passes through the support frame 3 and is rotatably connected to the support frame 3.

[0033] Furthermore, a connecting shaft 8 is fixedly provided on the end surface of the support frame 3 away from the conveyor belt 5, and one end of the connecting shaft 8 away from the support frame 3 is rotatably connected to the box body 1. The connecting shaft 8 located on the bottom support frame 3 passes downward through the box body 1 and is transmission-connected to the external first motor. In order to drive the conveyor belt 5 to rotate, a second motor is provided on the bottom support frame 3, so that the rotating shaft 26 on the bottom roller 18 passes through the support frame 3 and is transmission-connected to the second motor.

[0034] During specific use, the conveyor belt 5 is placed between the two rollers 18 and tightened, and then the workpiece 15 is hung on the conveyor belt 5. The rollers 18 are driven to rotate by the second motor, thereby driving the conveyor belt 5 to rotate to complete the transportation of the workpiece 15. At the same time, the support frame 3 is driven to rotate by the first motor to drive the entire conveyor belt 5 to rotate, which is conducive to the all-round grinding of the workpiece 15.

[0035] A plurality of sandblasting nozzles 4 are arranged on the inner wall of the box body 1, and a sandblasting tube 2 is arranged at one end of the sandblasting nozzle 4 away from the conveyor belt 5. The sandblasting tube 2 passes through the box body 1 and is connected to the sand box on the outside to perform sandblasting operations, thereby completing the grinding of the workpiece 15. Of course, the components required for the sandblasting operation such as the above-mentioned sandblasting nozzle 4 and their working principles are mature technical means in the field of sandblasting, and will not be elaborated here. This article mainly describes the specific connection structure and connection method between the workpiece 15 and the conveyor belt 5.

[0036] like Figure 3-5 As shown in , 7-9, a suspension assembly is provided on the conveyor belt 5, and a baffle 24 is arranged on the inner side of the conveyor belt 5, and a driving assembly matched with the suspension assembly is provided on the baffle 24. In actual use, the workpiece 15 to be polished is placed on the suspension assembly of the conveyor belt 5, and the suspension assembly is driven to rotate by the conveyor belt 5, thereby prompting the suspended workpiece 15 to move synchronously with the conveyor belt 5. When the suspension assembly drives the workpiece 15 to move with the conveyor belt 5 to the driving assembly, the driving assembly can drive the suspension assembly to rotate relative to the conveyor belt 5, thereby engaging the workpiece 15 between the suspension assembly and the conveyor belt 5 to prevent it from detaching. When the suspension assembly drives the workpiece 15 to move to the roller 18 and finally passes over the roller 18, the workpiece 15 is reversed relative to the conveyor belt 5, so that the other side of the workpiece 15 can be polished, and when the suspension assembly passes through the driving assembly on the other side of the conveyor belt 5, the suspension assembly rotates again and is in an open state relative to the conveyor belt 5, which is convenient for the staff to take the workpiece 15.

[0037] The above-mentioned hanging assembly includes a connecting plate 12 arranged on the outside of the conveyor belt 5, the number of the connecting plates 12 is set to be multiple, and a plurality of hanging rods 17 are arranged between two adjacent connecting plates 12 on the same side of the conveyor belt 5. The hanging rods 17 and the connecting plates 12 are both set to be arc-shaped, and the arc of the hanging rods 17 is greater than π, so that when the hanging rods 17 are approximately in a vertical state, the hanging rods 17 can stably hang the workpiece 15, and an opening for hanging the workpiece 15 is formed on the arc-shaped hanging rods 17. There is a plurality of connecting plates 12 between the connecting plates 12 and the hanging rods 17, and between two adjacent hanging rods. 17 are fixedly connected by a connecting rod 11, a fixed shaft 14 is arranged on the inner side of the hanging rod 17, collars are fixedly sleeved at both ends of the fixed shaft 14, and a support rod 13 is fixedly connected between the collar and the connecting plate 12, so as to connect the fixed shaft 14 with the connecting plate 12 and the scraper, so that when the fixed shaft 14 rotates, the hanging rod 17 can be driven to rotate relative to the conveyor belt 5, so as to facilitate the workpiece 15 hung on the hanging rod 17 to be clamped between the conveyor belt 5 and the hanging rod 17, so as to avoid it falling off when passing through the roller 18.

[0038] Furthermore, a protrusion 30 is fixedly connected to the side of the conveyor belt 5, and the fixed shaft 14 passes through the protrusion 30 and is rotatably connected thereto, so as to connect the fixed shaft 14 to the conveyor belt 5, thereby installing components such as the hanging rod 17 on the conveyor belt 5, and both ends of the fixed shaft 14 are fixedly sleeved with gears 7.

[0039] Furthermore, the limiting blocks 16 are fixedly connected to the sides of the connecting plate 12 and the hanging rod 17 , and the stability of the hanging rod 17 hanging the workpiece 15 is maintained through the cooperation between the limiting blocks 16 and the baffle 24 .

[0040] In order to prevent the hanging rod 17 and the connecting plate 12 from interfering with the conveyor belt 5 during the rotation, a through groove 28 matching the hanging rod 17 is provided on the side of the conveyor belt 5, so that during the rotation, both ends of the hanging rod 17 can pass through the through groove 28 on the conveyor belt 5 and contact the baffle 24. Similarly, a notch matching the connecting plate 12 is provided on the conveyor belt 5 to facilitate the connecting plate 12 to pass through the conveyor belt 5, and the upper and lower notches are connected by a strip groove 29, so as to prevent the support rod 13 from interfering with the conveyor belt 5 during the rotation.

[0041] The above-mentioned driving assembly includes a first rotating rack 10 and a first reset rack 9 which are arranged on both sides of the top end of the conveyor belt 5 and meshed with the gear 7. A second rotating rack 23 and a second reset rack 21 which meshed with the gear 7 are arranged on both sides of the bottom end of the conveyor belt 5. In actual use, the second rotating rack 23 and the second reset rack 21 are fixedly connected to the baffle 24 through a U-shaped support rod 31. By setting the support rod 31 to be U-shaped, and one end is fixedly connected to the outer end faces of the second rotating rack 23 and the second reset rack 21, and the other end is fixedly connected to the baffle 24, the gear 7 can pass smoothly from the inside of the second rotating rack 23 and the second reset rack 21, and the first rotating rack 10 and the first reset rack 9 are fixedly connected to the baffle 24 through an L-shaped fixing rod.

[0042] Furthermore, both sides of the baffle plate 24 are inwardly recessed to form a groove, the inner bottom surface of the groove is configured as an inner concave surface 25, and the side surface of the baffle plate 24 protruding outward is configured as an extrusion surface.

[0043] In actual use, when the hanging rod 17 is located at the inner concave surface 25 of the baffle 24, the hanging rod 17 is in a horizontal state, so that the opening on the hanging rod 17 is arranged upward, which is convenient for the staff to hang the workpiece 15 to be polished on the hanging rod 17, and then the roller 18 is driven to rotate by the second motor, and the conveyor belt 5 is driven to rotate by the roller 18, thereby driving the workpiece 15 on the hanging rod 17 to move synchronously with the conveyor belt 5. When the gear 7 on the fixed shaft 14 moves to the first rotating rack 10 and meshes with it, the gear 7 will rotate by itself, so that the fixed shaft 14 connected thereto can be driven to rotate through the gear 7, and the hanging rod 17 on the outside thereof can be driven to rotate through the fixed shaft 14. When the hanging rod 17 gradually rotates to a vertical state, one end of the hanging rod 17 will rotate toward the top pressure surface 22 on the baffle 24. At the same time, the other end of the hanging rod 17 will gradually move away from the inner concave surface 25 on the baffle 24. When the hanging rod 17 finally rotates to a vertical state, both ends of the hanging rod 17 are in contact with the top pressure surface 22 on the baffle 24, and at this time, the gear 7 is disengaged from the first rotating rack 10. At this point, the hanging rod 17 is in a vertical state after rotation, and the opening thereon faces the baffle 24, thereby engaging the workpiece 15 between the hanging rod 17 and the conveyor belt 5, which is beneficial to prevent the workpiece 15 from disengaging from the hanging rod 17, and the two ends of the hanging rod 17 are limited by the top pressure surface 22, so that the hanging rod 17 cannot rotate. , and thus maintain a stable state. When the conveyor belt 5 continues to drive the hanging rod 17 to move to the roller 18, the workpiece 15 is gradually tilted upward by the connecting shaft 8 and the hanging rod 17. When the hanging rod 17 finally passes over the sleeve and moves to the other side of the conveyor belt 5, the workpiece 15 will flip 180°, so that the inner side originally close to the conveyor belt 5 is flipped to the outside, which is conducive to the sandblasting nozzle 4 to grind this surface. Then the conveyor belt 5 drives the hanging rod 17 in the vertical state to the first reset rack 9. When the bottom end of the hanging rod 17 moves from the top pressure surface 22 to the inner concave surface 25, the gear 7 meshes with the first reset rack 9. Then, as the gear 7 meshes with the first reset rack 9, The meshing of the rack 9 causes the hanging rod 17 to rotate to the horizontal direction again. During the rotation process, the bottom end of the hanging rod 17 will rotate toward the inner concave surface 25 of the baffle 24, and when the hanging rod 17 rotates to an approximately horizontal state again, the gear 7 on the fixed shaft 14 disengages from the first reset rack 9. At this time, one end of the hanging rod 17 contacts the inner concave surface 25 of the baffle 24, and the limit block 16 on the outer side of the hanging rod 17 contacts the inner concave surface 25 of the baffle 24, so as to limit the hanging rod 17 and prevent it from continuing to rotate relative to the baffle 24, which is conducive to maintaining the stability of the hanging rod 17 relative to the baffle 24, so that the conveyor belt 5 can stably drive the hanging rod 17 and the workpiece 15 to continue to move downward;

[0044] Similarly, when the conveyor belt 5 continues to drive the hanging rod 17 and the workpiece 15 to move to the second rotating rack 23, the gear 7 engages with the second rotating rack 23 to drive the hanging rod 17 to rotate again so that both ends of the hanging rod 17 are in contact with the top pressure surface 22 of the baffle 24, thereby preventing the workpiece 15 from falling off. Figure 5 As shown, as the gear 7 is meshed with the second rotating rack 23, the hanging rod 17 gradually rotates to a vertical state, and finally one end of the hanging rod 17 passes through the conveyor belt 5 and contacts the top pressure surface 22 of the baffle 24. At this time, the workpiece 15 is clamped between the hanging rod 17 and the conveyor belt 5, and in this process, the gear 7 is disengaged from the second rotating rack 23. As the conveyor belt 5 continues to rotate, the two ends of the hanging rod 17 finally contact the top pressure surface 22 of the baffle 24, thereby maintaining the stability of the workpiece 15 and preventing the workpiece 15 from falling off. When the conveyor belt 5 continues to drive the gear 7 to move to the second reset rack 21, the gear 7 will drive the hanging rod 17 to rotate outward, thereby making the hanging rod 17 in an approximately horizontal state again.

[0045] By repeating the above process, the workpiece 15 can be reversed relative to the conveyor belt 5 while the conveyor belt 5 drives the hanging rod 17 and the workpiece 15 to rotate, so that the side of the workpiece 15 that was originally close to the conveyor belt 5 and difficult to grind is reversed to the outside, which is beneficial for grinding it through the sandblasting nozzle 4, and when the hanging rod 17 is in the concave surface 25 area of ​​the baffle 24, the hanging rod 17 is in a horizontal state, which is convenient for the staff to pick up and hang the workpiece 15, and the operation is more convenient. In actual use, the first motor drives the support frame 3 and the conveyor belt 5 to rotate, which is beneficial for all-round grinding of the workpiece 15.

[0046] like Figure 6 As shown, a plurality of annular grooves 19 are provided on the outer surface of the roller 18, and the hanging rod 17 and the connecting plate 12 are matched with the annular grooves 19, so that when the conveyor belt 5 drives the hanging rod 17 and the connecting plate 12 to move to the roller 18, the hanging rod 17 and the connecting rod 11 can pass through the conveyor belt 5 and extend to the annular grooves 19, thereby avoiding interference between the hanging rod 17 or the connecting plate 12 and the roller 18.

[0047] like Figure 10-11 As shown, in actual use, the front and rear sides of the groove on the baffle 24 can adopt a closed structure, and positioning grooves 32 are opened on both side surfaces of the baffle 24, and a positioning strip 33 matching the positioning groove 32 is fixedly provided on the inner side surface of the conveyor belt 5, and the positioning strip 33 is slidably set inside the positioning groove 32, and the cross-sections of the positioning strip 33 and the positioning groove 32 are both set to T-shaped, so as to improve the stability of the connection between the conveyor belt 5 and the top plate, and avoid the situation where the conveyor belt 5 opens outward and causes the workpiece 15 to fall off.

[0048] like Figure 1As shown, a door panel 20 is hinged on one side of the box body 1 to facilitate taking and hanging the workpiece 15, and support legs are fixedly connected on both sides of the box body 1. In addition, sand discharge troughs 6 are provided on both sides of the bottom of the box body 1 to facilitate recycling of materials.

[0049] like Figure 7 As shown, fixing plates 27 are fixedly connected to both sides of the baffle 24 , and the rotating shaft 26 passes through the fixing plate 27 and is rotatably connected thereto, thereby completing the installation and fixation of the baffle 24 .

Claims

1. A sandblasting device for automobile hardware electroplating, comprising a box body, a plurality of sandblasting nozzles are arranged on the inner wall of the box body, characterized in that: A conveyor belt is arranged inside the box; The conveyor belt is provided with a suspension assembly, and the suspension assembly is used to place workpieces. A baffle is arranged on the inner side of the conveyor belt, and a driving assembly matched with the suspension assembly is arranged on the baffle. The suspension assembly is driven to rotate by the conveyor belt, and when the suspension assembly drives the workpiece suspended on the outer side thereof to move to the driving assembly, the driving assembly drives the suspension assembly to rotate relative to the conveyor belt and clamps the workpiece between the suspension assembly and the conveyor belt. The suspension assembly includes a connecting plate arranged on the outside of the conveyor belt, the number of connecting plates is set to be multiple, and multiple hanging rods are arranged between two adjacent connecting plates on the same side of the conveyor belt, the hanging rods and the connecting plates are both arranged in an arc shape, and the connecting plate and the hanging rod, and the two adjacent hanging rods are fixedly connected by connecting rods, a fixed shaft is arranged on the inner side of the hanging rod, both ends of the fixed shaft are fixedly sleeved with rings, and a support rod is fixedly connected between the ring and the connecting plate, a protrusion is fixedly connected to the side surface of the conveyor belt, the fixed shaft passes through the protrusion and is rotatably connected to the protrusion, both ends of the fixed shaft are fixedly sleeved with gears, and the sides of the connecting plate and the hanging rod are fixedly connected with limited blocks; The driving assembly includes a first rotating rack and a first reset rack which are arranged on both sides of the top end of the conveyor belt and meshed with the gear. A second rotating rack and a second reset rack which meshed with the gear are arranged on both sides of the bottom end of the conveyor belt. Both sides of the baffle are recessed inward to form a groove, and the bottom surface of the inner cavity of the groove is set as an inner concave surface. The side surface of the baffle protruding outward is set as an extrusion surface.

2. A sandblasting device for automobile hardware electroplating according to claim 1, characterized in that: Rollers are arranged at both ends of the conveyor belt, and a plurality of annular grooves are arranged on the outer side of the rollers. The hanging rods and the connecting plates are matched with the annular grooves.

3. The sandblasting device for automobile hardware electroplating according to claim 1, characterized in that: Positioning grooves are provided on both side surfaces of the baffle, and a positioning strip matching the positioning grooves is fixedly provided on the inner side surface of the conveyor belt. The positioning strip is slidably arranged inside the positioning groove, and the cross sections of the positioning strip and the positioning groove are both arranged to be T-shaped.

4. The sandblasting device for automobile hardware electroplating according to claim 1, characterized in that: A plurality of through slots matched with the hanging rods and notches matched with the connecting plates are provided on the side surface of the conveyor belt, and the two notches are connected through a strip groove.

5. The sandblasting device for automobile hardware electroplating according to claim 1, characterized in that: The second rotating rack and the second reset rack are both fixedly connected to the baffle plate via a U-shaped support rod, and the first rotating rack and the first reset rack are fixedly connected to the baffle plate via an L-shaped fixing rod.

6. The sandblasting device for automobile hardware electroplating according to claim 2, characterized in that: A U-shaped support frame is arranged at the drum, and both ends of the drum are fixedly connected with a rotating shaft, and one end of the rotating shaft away from the drum passes through the support frame and is rotatably connected with the support frame.

7. The sandblasting device for automobile hardware electroplating according to claim 6, characterized in that: A connecting shaft is fixedly arranged on the end surface of the support frame away from the conveyor belt, and the connecting shaft is rotatably connected to the box body. The connecting shaft located on the bottom support frame passes downward through the box body and is transmission-connected to the external first motor.

8. The sandblasting device for automobile hardware electroplating according to claim 6, characterized in that: A second motor is arranged on the bottom support frame, and the rotating shaft on the drum passes through the support frame and is drivingly connected to the second motor.

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