Polishing device for metal badge and polishing method thereof

Abstract

The invention belongs to the technical field of polishing devices, and discloses a polishing device for a metal badge and a polishing method thereof.The polishing device comprises a polishing table, a portal frame is fixedly mounted at the top end of the polishing table, a polishing assembly is arranged in the portal frame, and a bearing plate is arranged below the portal frame; the bearing plate is rotatably installed in the grinding table through the overturning assembly, grooves are evenly formed in the bearing plate, limiting assemblies are arranged on the two sides of the bearing plate, after the surface of the metal badge is polished, a second motor is started, the second motor drives a second rotating shaft to rotate when being started, and the second rotating shaft rotates to drive the bearing plate to rotate; and the bearing plate is rotated by 180 degrees to polish the other side of the metal badge, so that the problem of low efficiency caused by manual turn-over in traditional operation is solved, and the efficiency of polishing operation is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing devices, and in particular relates to a polishing device for metal badges and a polishing method thereof. Background Art

[0002] Metal badges are a type of badge (medal) and are usually made through a variety of processes such as stamping, die-casting, and biting. In order to ensure that the production quality of metal badges reaches high standards, these badges need to be polished after completing the above processes to enhance their glossiness and overall texture. After searching, such as patent: CN218697433U, a metal badge polishing device includes a bottom plate, a support frame is arranged on the rear side of the bottom plate base surface, a grinding wheel is rotatably arranged inside the support frame, and a driving motor is arranged on the left side of the support frame. By arranging the grinding wheel, the adjusting plate, the rotating cylinder and the placing plate on the metal badge polishing device, the driving motor can drive the grinding wheel to rotate, and multiple badges can be placed in the placing plate at the same time. The placing plate can be driven to move upward by the telescopic cylinder, the adjusting plate can be driven to move forward and backward by the rotating motor, and the placing plate can be driven to rotate by the rotating cylinder, so that the placing plate is moved to the lower side of the grinding wheel. When the placing plate and the grinding wheel rotate at the same time, multiple badges can be polished at the same time, the production efficiency is high, and the polishing effect is good. The overall device has a simple structure, convenient operation and higher practicality. Since both sides of the metal badge need to be polished, the polishing device currently used has certain limitations when polishing the metal badge. Specifically, after the device completes polishing one side, the operator must manually remove the metal badge and turn it over to polish the other side. This process reduces the efficiency of the entire polishing operation. Summary of the invention

[0003] The object of the present invention is to provide a polishing device and a polishing method for metal badges to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polishing device for metal badges, comprising a polishing table, a gantry is fixedly installed on the top of the polishing table, a polishing assembly is arranged inside the gantry, a bearing plate is arranged below the gantry, the bearing plate is rotatably installed inside the polishing table through a flip assembly, grooves are evenly opened inside the bearing plate, and limit assemblies are arranged on both sides of the bearing plate; The polishing assembly comprises a polishing box arranged inside the gantry, a polishing roller is arranged at the bottom of the polishing box, both ends of the polishing roller are fixedly connected with a first rotating shaft, two first rotating shafts are rotatably installed inside the polishing box, a pulley group is installed on the outer wall of one of the first rotating shafts, a second reciprocating screw rod is installed on the top of the pulley group, one end of the second reciprocating screw rod is fixedly connected with a gear, the bottom end of the gear is meshedly connected with a rack plate, the rack plate is fixedly installed on the inner wall of the gantry, a first motor is arranged inside the gantry, a first reciprocating screw rod is installed at one end of the first motor, the first reciprocating screw rod is embedded in the polishing box, and a dust collection assembly is arranged inside the polishing box; The flip assembly includes second rotating shafts fixedly mounted at both ends of the carrier plate, and both of the second rotating shafts are rotatably mounted inside the grinding table, wherein a second motor is mounted at one end of one of the second rotating shafts.

[0005] As a further technical solution of the present invention, the limiting assembly includes a limiting plate arranged on the side wall of the bearing plate, and two limiting plates are symmetrically arranged.

[0006] As a further technical solution of the present invention, the side walls of the two limit plates are fixedly connected with sliders, the two sliders are installed on the outer wall of the threaded rod, the threaded rod is rotatably installed inside the supporting plate, and the outer wall of the threaded rod is installed with a dual-axis motor.

[0007] As a further technical solution of the present invention, the outer wall of the threaded rod is provided with two threads, and the two threads are provided in opposite directions.

[0008] As a further technical solution of the present invention, bumps are evenly installed inside the limit plate, and a spring is installed between each bump and the limit plate.

[0009] As a further technical solution of the present invention, a material receiving box is arranged below the carrying plate, and the material receiving box is slidably installed inside the grinding table.

[0010] As a further technical solution of the present invention, the dust suction assembly includes a connecting pipe arranged inside the polishing box, and two connecting pipes are symmetrically arranged. The bottom ends of the two connecting pipes are evenly installed with a first dust suction pipe, and a piston head is arranged between the ends of the two connecting pipes. The piston head is slidably installed inside the polishing box, and one side of the piston head is fixedly connected to a piston rod, and the piston rod is installed on the outer wall of the second reciprocating screw rod. A discharge pipe is arranged on the other side of the piston head, and a recovery box is arranged below the discharge pipe.

[0011] As a further technical solution of the present invention, the recovery box is slidably installed inside the polishing box.

[0012] As a further technical solution of the present invention, a second dust suction pipe is fixedly connected to one side of the first dust suction pipe, and the second dust suction pipe is arranged above the polishing roller.

[0013] A polishing method for a polishing device for a metal badge comprises the following steps: S1: When polishing a metal badge, first place the metal badge in the groove, then start the first motor, when the first motor is started, the first reciprocating screw is driven to rotate, and the rotation of the first reciprocating screw drives the polishing box to reciprocate above the bearing plate; S2: At the same time, the movement of the polishing box drives the movement of the gear, which rotates by meshing with the rack plate. The rotation of the gear drives the rotation of the second reciprocating screw. When the second reciprocating screw rotates, it drives the first rotating shaft to rotate through the transmission of the pulley set. The rotation of the first rotating shaft drives the rotation of the polishing roller, so that the polishing roller reciprocates and rotates above the bearing plate to polish the surface of the metal badge; S3: At the same time, the rotation of the second reciprocating screw drives the piston rod to move back and forth, and the movement of the piston rod drives the movement of the piston head, and the dust and impurities on the top of the carrier plate and the outer wall of the polishing roller are sucked into the polishing box through the first dust suction pipe and the second dust suction pipe, and finally discharged from the discharge pipe to the recovery box for collection; S4: When the surface polishing of the metal badge is completed, one of the dual-axis motors is started to drive the threaded rod to rotate, the rotation of the threaded rod drives the movement of the slider, and the movement of the slider drives the movement of the limit plate, so that the two limit plates on the top of the carrier plate move to the top of the groove, so that the limit plates on both sides of the carrier plate are located on both sides of the groove for limiting; S5: Then start the second motor, and when the second motor is started, the second rotating shaft is driven to rotate, and the rotation of the second rotating shaft drives the rotation of the carrier plate, so that the carrier plate rotates 180 degrees, and then start another dual-axis motor. Similarly, the two limit plates move, so that the two limit plates on the top of the carrier plate are removed from above the groove, and the polishing roller moves again to polish the other side of the metal badge; S6: When both sides of the metal badge are polished, the dual-axis motor located at the bottom of the carrier plate is started to move the limit plate at the bottom of the carrier plate from under the groove, and the metal badge in the groove falls into the collecting box for collection, completing the polishing operation.

[0014] The beneficial effects of the present invention are as follows: The present invention arranges a flipping assembly, and when one side of the metal badge is polished, the second motor is started, and the second motor drives the second rotating shaft to rotate when started. The rotation of the second rotating shaft drives the rotation of the carrying plate, so that the carrying plate rotates 180 degrees, and the other side of the metal badge is polished, thereby avoiding the problem of low efficiency of manual flipping in traditional operations and improving the efficiency of the polishing operation.

[0015] The present invention sets a limiting component. When polishing a metal badge, two limiting plates on the top of the carrying plate are located on both sides. The polishing roller passes between the two limiting plates to polish the metal badge. Two limiting plates at the bottom of the carrying plate are located below the groove to limit the bottom of the metal badge.

[0016] The present invention arranges the dust suction component, when polishing the metal badge, the rotation of the second reciprocating screw drives the piston rod to move back and forth, the movement of the piston rod drives the movement of the piston head, and the dust on the top of the supporting plate and the impurities generated during polishing are sucked into the polishing box through the first dust suction pipe, and finally discharged from the discharge pipe to the recovery box for collection, thereby avoiding the generation of a large amount of dust and debris during the polishing operation, which not only affects the working environment but also may adhere to the product and affect the overall appearance and quality. By vacuuming, these dust and debris can be effectively removed to keep the working environment clean and orderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structural cross section of the grinding box of the present invention; Figure 4 It is a schematic diagram of the structure of the first dust suction pipe and the second dust suction pipe of the present invention; Figure 5 It is a schematic cross-sectional view of the structure of the load-bearing plate of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 It is a schematic cross-sectional view of the structure of the limiting plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B in the middle.

[0018] In the figure: 1. grinding table; 2. gantry; 3. bearing plate; 4. groove; 5. grinding box; 6. first reciprocating screw; 7. first motor; 8. polishing roller; 9. first rotating shaft; 10. pulley group; 11. second reciprocating screw; 12. gear; 13. rack plate; 14. limit plate; 15. slider; 16. threaded rod; 17. dual-axis motor; 18. second rotating shaft; 19. second motor; 20. material collection box; 21. bump; 22. spring; 23. piston rod; 24. piston head; 25. first dust suction pipe; 26. connecting pipe; 27. discharge pipe; 28. recovery box; 29. ​​second dust suction pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 8 As shown, in an embodiment of the present invention, a polishing device for metal badges includes a polishing table 1, a gantry 2 is fixedly installed on the top of the polishing table 1, a polishing assembly is arranged inside the gantry 2, a bearing plate 3 is arranged below the gantry 2, the bearing plate 3 is rotatably installed inside the polishing table 1 through a flip assembly, grooves 4 are evenly opened inside the bearing plate 3, and limit assemblies are arranged on both sides of the bearing plate 3; The polishing assembly includes a polishing box 5 arranged inside the gantry 2, a polishing roller 8 is arranged at the bottom of the polishing box 5, both ends of the polishing roller 8 are fixedly connected with a first rotating shaft 9, and the two first rotating shafts 9 are rotatably installed inside the polishing box 5, a pulley group 10 is installed on the outer wall of one of the first rotating shafts 9, a second reciprocating screw rod 11 is installed on the top of the pulley group 10, one end of the second reciprocating screw rod 11 is fixedly connected with a gear 12, the bottom end of the gear 12 is meshedly connected with a rack plate 13, and the rack plate 13 is fixedly installed on the inner wall of the gantry 2, a first motor 7 is arranged inside the gantry 2, one end of the first motor 7 is installed with a first reciprocating screw rod 6, the first reciprocating screw rod 6 is embedded in the polishing box 5, and a dust collection assembly is arranged inside the polishing box 5; The flip assembly includes second rotating shafts 18 fixedly mounted at both ends of the carrier plate 3 . Both second rotating shafts 18 are rotatably mounted inside the grinding table 1 . A second motor 19 is mounted at one end of one of the second rotating shafts 18 .

[0021] When polishing a metal badge, first place the metal badge in the groove 4, then start the first motor 7, which drives the first reciprocating screw 6 to rotate. The rotation of the first reciprocating screw 6 drives the polishing box 5 to reciprocate above the bearing plate 3; At the same time, the movement of the polishing box 5 drives the movement of the gear 12, which rotates by meshing with the rack plate 13. The rotation of the gear 12 drives the rotation of the second reciprocating screw 11. When the second reciprocating screw 11 rotates, it drives the first rotating shaft 9 to rotate through the transmission of the pulley group 10. The rotation of the first rotating shaft 9 drives the rotation of the polishing roller 8, so that the polishing roller 8 reciprocates and rotates above the carrying plate 3 to polish the surface of the metal badge; When the surface polishing of the metal badge is completed, the second motor 19 is started. When the second motor 19 is started, the second rotating shaft 18 is driven to rotate. The rotation of the second rotating shaft 18 drives the rotation of the supporting plate 3, so that the supporting plate 3 is rotated 180 degrees to polish the other side of the metal badge, thereby avoiding the problem of low efficiency of manual turning over in traditional operations and improving the efficiency of the polishing operation.

[0022] like Figures 1 to 6 As shown, the limiting assembly includes a limiting plate 14 arranged on the side wall of the bearing plate 3, and two limiting plates 14 are symmetrically arranged.

[0023] When polishing the metal badge, the two limit plates 14 on the top of the carrier plate 3 are located on both sides, and the polishing roller 8 passes between the two limit plates 14 to polish the metal badge; The two limiting plates 14 at the bottom of the carrying plate 3 are located below the groove 4 to limit the bottom of the metal badge.

[0024] like Figure 5 and Figure 6 As shown, the side walls of the two limit plates 14 are fixedly connected with sliders 15, and the two sliders 15 are installed on the outer wall of the threaded rod 16. The threaded rod 16 is rotatably installed inside the supporting plate 3, and the outer wall of the threaded rod 16 is installed with a dual-axis motor 17.

[0025] When one side of the metal badge has been polished and the other side needs to be polished, firstly, one of the dual-axis motors 17 is started to drive the threaded rod 16 to rotate, the rotation of the threaded rod 16 drives the movement of the slider 15, and the movement of the slider 15 drives the movement of the limit plate 14, so that the two limit plates 14 on the top of the carrier plate 3 move to the top of the groove 4 to limit the metal badge, and then the carrier plate 3 is flipped by the flip assembly; The limiting plates 14 on both sides of the carrying plate 3 are located on both sides of the metal badge to limit its position when it is flipped, so as to ensure the stability of the metal badge when it is flipped; When the metal badge is turned over, another dual-axis motor 17 is started, and similarly, the two limit plates 14 move, so that the two limit plates 14 on the top of the carrying plate 3 are removed from above the groove 4.

[0026] like Figure 5 and Figure 6 As shown, the outer wall of the threaded rod 16 is provided with two threads, and the two threads are provided in opposite directions.

[0027] like Figure 7 and Figure 8 As shown, protrusions 21 are evenly installed inside the limiting plate 14 , and a spring 22 is installed between each protrusion 21 and the limiting plate 14 .

[0028] When polishing the metal badge, the protrusion 21 is located at the bottom of the metal badge. Through the elastic potential energy of the spring 22, the metal badge can move slightly in the groove 4, so that the badge surface can better contact with the polishing roller 8, thereby improving the polishing effect.

[0029] like Figures 1 to 8 As shown, a material receiving box 20 is provided below the carrying plate 3 , and the material receiving box 20 is slidably installed inside the grinding table 1 .

[0030] After both sides of the metal badge are polished, the dual-axis motor 17 located at the bottom of the carrier plate 3 is started to move the limit plate 14 at the bottom of the carrier plate 3 away from under the groove 4, and the metal badge in the groove 4 falls into the receiving box 20 for collection.

[0031] like Figures 1 to 4 As shown, the dust suction assembly includes a connecting pipe 26 arranged inside the polishing box 5, and two connecting pipes 26 are symmetrically arranged. The bottom ends of the two connecting pipes 26 are evenly installed with the first dust suction pipe 25, and a piston head 24 is arranged between the ends of the two connecting pipes 26. The piston head 24 is slidably installed inside the polishing box 5. One side of the piston head 24 is fixedly connected to a piston rod 23, and the piston rod 23 is installed on the outer wall of the second reciprocating screw 11. A discharge pipe 27 is arranged on the other side of the piston head 24, and a recovery box 28 is arranged below the discharge pipe 27.

[0032] The outer walls of the connecting pipe 26 and the discharge pipe 27 are both installed with a one-way valve; When polishing the metal badge, the rotation of the second reciprocating screw 11 drives the piston rod 23 to move back and forth, and the movement of the piston rod 23 drives the movement of the piston head 24, and the dust on the top of the supporting plate 3 and the impurities generated during polishing are sucked into the polishing box 5 through the first dust suction pipe 25, and finally discharged from the discharge pipe 27 to the recovery box 28 for collection, thereby avoiding the generation of a large amount of dust and debris during the polishing operation, which not only affects the working environment but may also adhere to the product and affect the overall appearance and quality. By vacuuming, these dust and debris can be effectively removed to keep the working environment clean and orderly.

[0033] like Figures 1 to 3 As shown, the recovery box 28 is slidably installed inside the polishing box 5.

[0034] like Figure 3 and Figure 4 As shown, a second dust suction pipe 29 is fixedly connected to one side of the first dust suction pipe 25 , and the second dust suction pipe 29 is arranged above the polishing roller 8 .

[0035] During vacuuming, the dust and debris attached to the surface of the polishing roller 8 are sucked away through the second vacuum pipe 29 toward one side of the polishing roller 8 to prevent them from adhering to the surface of the polishing roller 8 and affecting the polishing quality and efficiency. By vacuuming the top of the carrier plate 3 and one side of the polishing roller 8, the cleanliness of the working environment and the quality of polishing are ensured.

[0036] A polishing method for a polishing device for a metal badge comprises the following steps: S1: When polishing a metal badge, first place the metal badge in the groove 4, then start the first motor 7, when the first motor 7 is started, the first reciprocating screw rod 6 is driven to rotate, and the rotation of the first reciprocating screw rod 6 drives the polishing box 5 to reciprocate above the bearing plate 3; S2: At the same time, the movement of the polishing box 5 drives the movement of the gear 12, which rotates by meshing with the rack plate 13. The rotation of the gear 12 drives the rotation of the second reciprocating screw 11. When the second reciprocating screw 11 rotates, it drives the first rotating shaft 9 to rotate through the transmission of the pulley group 10. The rotation of the first rotating shaft 9 drives the rotation of the polishing roller 8, so that the polishing roller 8 reciprocates and rotates above the bearing plate 3 to polish the surface of the metal badge; S3: At the same time, the rotation of the second reciprocating screw 11 drives the piston rod 23 to move back and forth, and the movement of the piston rod 23 drives the movement of the piston head 24, and the dust and impurities on the top of the carrier plate 3 and the outer wall of the polishing roller 8 are sucked into the polishing box 5 through the first dust suction pipe 25 and the second dust suction pipe 29, and finally discharged from the discharge pipe 27 to the recovery box 28 for collection; S4: When the surface polishing of the metal badge is completed, one of the dual-axis motors 17 is started to drive the threaded rod 16 to rotate, the rotation of the threaded rod 16 drives the movement of the slider 15, and the movement of the slider 15 drives the movement of the limit plates 14, so that the two limit plates 14 on the top of the carrier plate 3 move to the top of the groove 4, so that the limit plates 14 on both sides of the carrier plate 3 are located on both sides of the groove 4 for limiting; S5: Then start the second motor 19, and when the second motor 19 is started, the second rotating shaft 18 is driven to rotate, and the rotation of the second rotating shaft 18 drives the rotation of the carrier plate 3, so that the carrier plate 3 rotates 180 degrees, and then start another dual-axis motor 17. Similarly, the two limit plates 14 move, so that the two limit plates 14 on the top of the carrier plate 3 are removed from above the groove 4, and the polishing roller 8 moves again to polish the other side of the metal badge; S6: When both sides of the metal badge are polished, the dual-axis motor 17 located at the bottom of the carrier plate 3 is started to move the limit plate 14 at the bottom of the carrier plate 3 away from under the groove 4, and the metal badge in the groove 4 falls into the collecting box 20 for collection, completing the polishing operation.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for metal badges, comprising a polishing table (1), characterized in that: A gantry (2) is fixedly mounted on the top of the grinding table (1), a polishing assembly is arranged inside the gantry (2), a bearing plate (3) is arranged below the gantry (2), the bearing plate (3) is rotatably mounted inside the grinding table (1) through a flip assembly, grooves (4) are evenly arranged inside the bearing plate (3), and limit assemblies are arranged on both sides of the bearing plate (3); The polishing assembly comprises a polishing box (5) arranged inside the gantry (2); a polishing roller (8) is arranged at the bottom of the polishing box (5); both ends of the polishing roller (8) are fixedly connected to a first rotating shaft (9); the two first rotating shafts (9) are rotatably mounted inside the polishing box (5); a pulley group (10) is mounted on the outer wall of one of the first rotating shafts (9); a second reciprocating screw rod (11) is mounted on the top of the pulley group (10); one end of the second reciprocating screw rod (11) is fixedly connected to a gear (12); the bottom end of the gear (12) is meshingly connected to a rack plate (13); the rack plate (13) is fixedly mounted on the inner wall of the gantry (2); a first motor (7) is arranged inside the gantry (2); one end of the first motor (7) is mounted to a first reciprocating screw rod (6); the first reciprocating screw rod (6) is embedded in the polishing box (5); a dust collection assembly is arranged inside the polishing box (5); The flip assembly comprises second rotating shafts (18) fixedly mounted at both ends of the carrier plate (3), the two second rotating shafts (18) being rotatably mounted inside the grinding table (1), and a second motor (19) being mounted at one end of one of the second rotating shafts (18).

2. A polishing device for metal badges according to claim 1, characterized in that: The limiting assembly comprises a limiting plate (14) arranged on the side wall of the bearing plate (3), and two limiting plates (14) are symmetrically arranged.

3. A polishing device for metal badges according to claim 2, characterized in that: The side walls of the two limit plates (14) are fixedly connected with a slider (15), and the two sliders (15) are mounted on the outer wall of a threaded rod (16). The threaded rod (16) is rotatably mounted inside the supporting plate (3), and a dual-axis motor (17) is mounted on the outer wall of the threaded rod (16).

4. A polishing device for metal badges according to claim 3, characterized in that: The outer wall of the threaded rod (16) is provided with two threads, and the two threads are provided in opposite directions.

5. The polishing device for metal badges according to claim 2, characterized in that: The limiting plate (14) is evenly provided with protrusions (21), and a spring (22) is provided between each protrusion (21) and the limiting plate (14).

6. The polishing device for metal badges according to claim 1, characterized in that: A material receiving box (20) is provided below the carrying plate (3), and the material receiving box (20) is slidably mounted inside the grinding table (1).

7. The polishing device for metal badges according to claim 1, characterized in that: The dust suction assembly comprises a connecting pipe (26) arranged inside the polishing box (5), wherein two connecting pipes (26) are symmetrically arranged, and the bottom ends of the two connecting pipes (26) are evenly installed with a first dust suction pipe (25), and a piston head (24) is arranged between the ends of the two connecting pipes (26), and the piston head (24) is slidably installed inside the polishing box (5), and one side of the piston head (24) is fixedly connected to a piston rod (23), and the piston rod (23) is installed on the outer wall of the second reciprocating screw (11), and the other side of the piston head (24) is provided with a discharge pipe (27), and a recovery box (28) is arranged below the discharge pipe (27).

8. The polishing device for metal badges according to claim 7, characterized in that: The recovery box (28) is slidably mounted inside the polishing box (5).

9. The polishing device for metal badges according to claim 7, characterized in that: A second dust suction pipe (29) is fixedly connected to one side of the first dust suction pipe (25), and the second dust suction pipe (29) is arranged above the polishing roller (8).

10. A polishing method for a polishing device for metal badges, the method being applicable to the polishing device for metal badges as claimed in claims 1 to 9, characterized in that: The following steps are involved: S1: When polishing a metal badge, first place the metal badge in the groove (4), then start the first motor (7), when the first motor (7) is started, the first reciprocating screw rod (6) is driven to rotate, and the rotation of the first reciprocating screw rod (6) drives the polishing box (5) to reciprocate above the bearing plate (3); S2: At the same time, the movement of the polishing box (5) drives the movement of the gear (12), which is meshed with the rack plate (13) to rotate the gear (12), and the rotation of the gear (12) drives the second reciprocating screw (11) to rotate. When the second reciprocating screw (11) rotates, it drives the first rotating shaft (9) to rotate through the transmission of the pulley group (10), and the rotation of the first rotating shaft (9) drives the rotation of the polishing roller (8), so that the polishing roller (8) reciprocates and rotates above the carrier plate (3) to polish the surface of the metal badge; S3: At the same time, the rotation of the second reciprocating screw (11) drives the piston rod (23) to move back and forth, and the movement of the piston rod (23) drives the movement of the piston head (24), and the dust and impurities on the top of the carrier plate (3) and the outer wall of the polishing roller (8) are sucked into the polishing box (5) through the first dust suction pipe (25) and the second dust suction pipe (29), and finally discharged from the discharge pipe (27) to the recovery box (28) for collection; S4: When the surface polishing of the metal badge is completed, one of the dual-axis motors (17) is started to drive the threaded rod (16) to rotate, the rotation of the threaded rod (16) drives the movement of the slider (15), and the movement of the slider (15) drives the movement of the limit plate (14), so that the two limit plates (14) on the top of the supporting plate (3) move to the top of the groove (4), so that the limit plates (14) on both sides of the supporting plate (3) are located on both sides of the groove (4) for limiting; S5: Then the second motor (19) is started. When the second motor (19) is started, the second rotating shaft (18) is driven to rotate. The rotation of the second rotating shaft (18) drives the carrier plate (3) to rotate, so that the carrier plate (3) rotates 180 degrees. Then another dual-axis motor (17) is started. Similarly, the two limit plates (14) are moved, so that the two limit plates (14) on the top of the carrier plate (3) are removed from above the groove (4), and the polishing roller (8) is moved again to polish the other side of the metal badge. S6: When both sides of the metal badge are polished, the dual-axis motor (17) located at the bottom of the carrier plate (3) is started to move the limit plate (14) at the bottom of the carrier plate (3) away from the bottom of the groove (4), and the metal badge in the groove (4) falls into the collecting box (20) for collection, thus completing the polishing operation.

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