Automobile real wood decorative panel polishing equipment and polishing process

Abstract

The invention relates to the technical field of decorative plate polishing, and specifically discloses a polishing device for a real wood decorative plate of an automobile and a polishing process thereof, comprising: a polishing machine main body, a handle fixedly connected to the side of the polishing machine main body, and a liquid storage box fixedly connected to the upper end of the polishing machine main body; a grinding aid mechanism, the grinding aid mechanism is located above the polishing machine main body, and the grinding aid mechanism can provide polishing agent for the polishing machine main body; a scraping mechanism, the scraping mechanism is located below the polishing machine main body, and the scraping mechanism can scrape off the polishing agent sprayed by the grinding aid mechanism. When the present invention is in use, when the polishing machine main body is used to polish the automobile decorative plate, the grinding aid mechanism can be driven to spray out the polishing agent by rotating the rotating ring on the outer periphery of the handle, so as to facilitate the polishing of the polishing machine main body. At the same time, the scraping mechanism at one end of the polishing machine main body away from the polishing agent scrapes off the polished decorative plate. Scraping off excess polishing agent can check whether the polishing is sufficient, and the use is very convenient.

Description

Technical Field

[0001] The invention relates to the technical field of decorative plate polishing, in particular to a polishing device for a real wood decorative plate of an automobile and a polishing process thereof. Background Art

[0002] The processing of real wood decorative panels for cars includes the steps of material selection, cutting, shaping, polishing, coloring, etc. Among them, a car polishing machine is needed to polish the decorative panels. The car decorative panel polishing machine is a tool specially used for polishing the surface of car decorative panels. It can improve the gloss and smoothness of the decorative panel surface. The car polishing machine is used for polishing the surface of the car, and can make up for the small defects produced after the car surface is sprayed or the real wood decorative panels are used during use.

[0003] The polishing machine for automobile real wood decorative panels includes a rotary polishing machine and a vibrating polishing machine. When the rotary polishing machine is used to polish the automobile decorative panels, it is necessary to use a polishing agent to remove the aging layer and fine scratches on the wood or paint surface to make the surface of the decorative panels smooth. Not only must the polishing agent be sprayed before using the polishing machine, but also the excess polishing agent must be wiped off after using the polishing machine. This is very inconvenient during polishing. For this reason, we propose a polishing device for automobile real wood decorative panels and a polishing process thereof. Summary of the invention

[0004] The purpose of the present invention is to provide a polishing device for automobile real wood decorative panels and a polishing process thereof, so as to solve the problem proposed in the above background technology that not only the polishing agent needs to be sprayed before using the polishing machine, but also the excess polishing agent needs to be wiped off after using the polishing machine, which is very inconvenient during polishing.

[0005] To achieve the above object, the present invention provides the following technical solution: a polishing device for a real wood decorative plate of an automobile, comprising a polishing machine body, a handle fixedly connected to the side of the polishing machine body, and a liquid storage box fixedly connected to the upper end of the polishing machine body; A grinding aid mechanism, which is located above the polishing machine body and can provide polishing agent for the polishing machine body; The scraping mechanism is located below the polishing machine body and can scrape off the polishing agent sprayed by the grinding aid mechanism.

[0006] Among them, the liquid storage box is fixedly connected to a nozzle at one end away from the polishing machine body, the nozzle is located at the end of the polishing machine body, the upper end of the nozzle is fixedly connected to a support rod, the outer wall of the support rod is fixedly connected to a torsion spring, the end of the torsion spring away from the support rod is fixedly connected to a support ring, the support ring is located on the periphery of the support rod and is rotatably connected to the support rod, the lower end of the support ring is fixedly connected to a baffle, the baffle abuts the nozzle, and the upper end of the support ring is fixedly connected to a paddle.

[0007] Among them, the grinding aid mechanism includes a spring 1 fixedly connected to the outer wall of the handle, the end of the spring 1 away from the handle is fixedly connected to a rotating ring, the rotating ring is located at the outer periphery of the handle and is rotatably connected to the handle, the upper end of the handle is fixedly connected to a grinding aid rod, a shift rod is arranged above the grinding aid rod, a grinding aid groove is arranged at the lower end of the shift rod, the grinding aid rod is located inside the grinding aid groove and is rotatably connected to the grinding aid groove, the end of the shift rod away from the grinding aid rod is located on one side of the shift plate, and the shift rod abuts against the shift plate.

[0008] Among them, a limit groove is arranged at one end of the lever close to the polishing machine body, the outer wall of the polishing machine body is fixedly connected to the limit rod, and the limit rod is located inside the limit groove and is slidably connected to the limit groove.

[0009] Among them, the scraping mechanism includes a fixed rod fixedly connected to the bottom of the rotating ring, a driving rod rotatably connected to the outer periphery of the fixed rod, a turntable fixedly connected to the end of the driving rod away from the fixed rod, the turntable is located below the driving rod, and a positioning rod is rotatably connected to the end of the turntable close to the polishing machine body, and the positioning rod is fixedly connected to the outer wall of the polishing machine body.

[0010] Among them, a conductive sheet 1 is fixedly connected to the bottom of the turntable, a trigger box is fixedly connected to the outer wall of the polishing machine body, the trigger box is located outside the conductive sheet 1, two conductive sheets 2 are fixedly connected to the inner wall of the trigger box, the two conductive sheets 2 are respectively located at the two ends of the conductive sheet 1, and a scraping piece capable of scraping off the polishing agent is provided at the bottom of the polishing machine body.

[0011] Among them, the scraping part includes a scraping box fixedly connected to the bottom of the polishing machine body, the scraping box is arc-shaped, and a scraping groove is provided at one end of the scraping box away from the handle. An electric rod is fixedly connected to the inner wall of the scraping groove, and the electric rod is arc-shaped. Conductive sheet one and conductive sheet two are respectively connected to the electric rod circuit.

[0012] Wherein, a protrusion is fixedly connected to the inner wall of the scraping box, and the protrusion is located above the scraping groove.

[0013] Among them, a fixed box is slidably connected to the outer periphery of the electric rod, a fixing hole is opened at the upper end of the fixing box, a spring 2 is fixedly connected to the inner wall of the fixing hole, a scraper is fixedly connected to one end of the spring 2 away from the inner wall of the fixing hole, the end of the scraper away from the spring 2 is located outside the scraping box, and the scraper is slidably connected to the electric rod.

[0014] A polishing process for a real wood decorative plate of an automobile, comprising a liquid storage box carrying a polishing agent inside, used for assisting the grinding of the automobile decorative plate, rotating a rotating ring to drive a lever to shift a shifting plate, and opening a nozzle to spray out the polishing agent; Rotating the rotating ring can drive the driving rod to slide, and the driving rod drives the rotating disk to rotate so that the conductive sheet 1 contacts the conductive sheet 2, and the electric rod is energized to drive the scraper to move in a fan shape to scrape off the polishing agent behind the polishing machine body; When the fixed box slides, the top of the scraper abuts against the convex block, so that the scraper moves downward. The scraper is put down when it is working and is lifted up when it is not working.

[0015] The present invention has at least the following beneficial effects: When the present invention is in use, when the polishing machine body is used to polish the automobile decorative panel, the rotating ring on the outer periphery of the handle can be rotated to drive the grinding aid mechanism to spray the polishing agent, which is convenient for the polishing of the polishing machine body. At the same time, the scraping mechanism at one end of the polishing machine body away from the polishing agent scrapes the polished decorative panel. Scraping off excess polishing agent can check whether the polishing is sufficient, which is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the polishing machine of the present invention; Figure 2 It is a schematic diagram of a cross-sectional structure of a support rod of the present invention; Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the middle A area; Figure 4 It is a schematic diagram of the cross-sectional structure of the lever of the present invention; Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle B area; Figure 6 It is a schematic diagram of the cross-sectional structure of the rotating ring of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the trigger box of the present invention; Figure 8 for Figure 7 Schematic diagram of the enlarged structure of the middle C area; Fig. 9 It is a schematic cross-sectional structure diagram of a fixing box of the present invention; Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of area D in the middle.

[0017] In the figure: 1. polishing machine body; 11. handle; 2. liquid storage box; 21. nozzle; 22. support rod; 23. torsion spring; 24. support ring; 25. baffle; 26. paddle; 3. grinding aid mechanism; 31. spring 1; 32. rotating ring; 33. grinding aid rod; 34. paddle; 35. grinding aid groove; 36. limit groove; 37. limit rod; 4. scraping mechanism; 41. fixing rod; 42. driving rod; 43. turntable; 44. positioning rod; 45. conductive sheet 1; 46. trigger box; 47. conductive sheet 2; 5. scraping member; 51. scraping box; 52. scraping groove; 53. electric rod; 54. bump; 55. fixing box; 56. fixing hole; 57. spring 2; 58. scraper. DETAILED DESCRIPTION

[0018] 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.

[0019] Embodiment 1

[0020] See also Figure 1-10 The present invention provides a technical solution: a polishing device for a real wood decorative plate of an automobile and a polishing process thereof, comprising a polishing machine body 1, a handle 11 is fixedly connected to the side of the polishing machine body 1, and a liquid storage box 2 is fixedly connected to the upper end of the polishing machine body 1; A grinding aid mechanism 3, which is located above the polishing machine body 1 and can provide polishing agent for the polishing machine body 1; The scraping mechanism 4 is located below the polishing machine body 1 and can scrape off the polishing agent sprayed by the grinding aid mechanism 3; When the present invention is in use, the polishing machine body 1 is used to polish the automobile decorative panel. The rotating ring 32 on the outer periphery of the handle 11 can be rotated to drive the grinding aid mechanism 3 to spray out the polishing agent, which is convenient for the polishing of the polishing machine body 1. At the same time, the scraping mechanism 4 at the end of the polishing machine body 1 away from the polishing agent scrapes off the polished decorative panel. Scraping off excess polishing agent can check whether the polishing is sufficient, which is very convenient to use.

[0021] The end of the liquid storage box 2 away from the polishing machine body 1 is fixedly connected with a nozzle 21, the nozzle 21 is located at the end of the polishing machine body 1, the upper end of the nozzle 21 is fixedly connected with a support rod 22, the outer wall of the support rod 22 is fixedly connected with a torsion spring 23, the end of the torsion spring 23 away from the support rod 22 is fixedly connected with a support ring 24, the support ring 24 is located at the outer periphery of the support rod 22 and is rotatably connected to the support rod 22, the lower end of the support ring 24 is fixedly connected with a baffle 25, the baffle 25 abuts against the nozzle 21, and the upper end of the support ring 24 is fixedly connected with a paddle 26; The grinding aid mechanism 3 includes a spring 1 31 fixedly connected to the outer wall of the handle 11, one end of the spring 1 31 away from the handle 11 is fixedly connected to a rotating ring 32, the rotating ring 32 is located outside the handle 11 and is rotatably connected to the handle 11, the upper end of the handle 11 is fixedly connected to a grinding aid rod 33, a lever 34 is arranged above the grinding aid rod 33, a grinding aid groove 35 is arranged at the lower end of the lever 34, the grinding aid rod 33 is located inside the grinding aid groove 35 and is rotatably connected to the grinding aid groove 35, the end of the lever 34 away from the grinding aid rod 33 is located at one side of the shift plate 26, and the lever 34 abuts against the shift plate 26; A limiting groove 36 is formed at one end of the lever 34 close to the polishing machine body 1 , and a limiting rod 37 is fixedly connected to the outer wall of the polishing machine body 1 . The limiting rod 37 is located inside the limiting groove 36 and is slidably connected to the limiting groove 36 .

[0022] When it is necessary to spray the polishing agent on the surface of the automobile decorative panel, the rotating ring 32 on the outer periphery of the handle 11 is rotated clockwise, and the grinding aid rod 33 located at the upper end of the rotating ring 32 is located in the grinding aid groove 35 provided by the lever 34 and rotates. The grinding aid rod 33 abuts against the inner wall of the grinding aid groove 35 and drives the lever 34 to slide. The limiting rod 37 slides inside the limiting groove 36 provided by the lever 34 to ensure that the lever 34 slides horizontally. The end of the lever 34 can abut against the dial plate 26 and push the dial plate 26. At this time, the dial plate 26 drives the support ring 24 to rotate around the support rod 22. At the same time, the torsion spring 23 accumulates force, and the baffle plate 25 located at the bottom of the support ring 24 no longer abuts against the nozzle 21. The polishing agent located in the liquid storage box 2 is sprayed out from the nozzle 21, which is convenient for the polishing machine body 1 to polish the automobile decorative panel; After loosening the rotating ring 32, since the rotating ring 32 and the handle 11 are fixedly connected by the spring 1 31, no matter whether the rotating ring 32 rotates clockwise or counterclockwise, after the driving force of the rotating ring 32 is removed, the rotating ring 32 will be reset when the spring 1 31 is reset, so that the position of the rotating ring 32 and the handle 11 remain balanced. At this time, the grinding aid rod 33 is reset, and the grinding aid rod 33 no longer drives the lever 34 to slide. The torsion spring 23 located on the outer wall of the support rod 22 is reset, and the torsion spring 23 drives the support ring 24 to rotate in the opposite direction. The baffle plate 25 located at the bottom of the support ring 24 abuts against the nozzle 21. At this time, the nozzle 21 no longer sprays out the polishing agent. The lever plate 26 located at the upper end of the support ring 24 pushes the lever 34 to slide when it is reset. At this time, the reverse sliding of the lever 34 can prepare for the next spraying of the polishing agent.

[0023] The scraping mechanism 4 includes a fixed rod 41 fixedly connected to the bottom of the rotating ring 32, a driving rod 42 is rotatably connected to the outer periphery of the fixed rod 41, a rotating disk 43 is fixedly connected to the end of the driving rod 42 away from the fixed rod 41, the rotating disk 43 is located below the driving rod 42, and a positioning rod 44 is rotatably connected to the end of the rotating disk 43 close to the polishing machine body 1, and the positioning rod 44 is fixedly connected to the outer wall of the polishing machine body 1; A conductive sheet 1 45 is fixedly connected to the bottom of the turntable 43, a trigger box 46 is fixedly connected to the outer wall of the polishing machine body 1, the trigger box 46 is located outside the conductive sheet 1 45, and two conductive sheets 2 47 are fixedly connected to the inner wall of the trigger box 46, and the two conductive sheets 2 47 are respectively located at both ends of the conductive sheet 1 45. A scraping member 5 capable of scraping off the polishing agent is provided at the bottom of the polishing machine body 1; When the rotating ring 32 is rotated clockwise, the fixed rod 41 located at the bottom of the rotating ring 32 drives the driving rod 42 to slide. At this time, the driving rod 42 drives the turntable 43 to rotate around the positioning rod 44. The conductive sheet 1 45 located at the bottom of the turntable 43 contacts the conductive sheet 2 47 located on the inner wall of the trigger box 46, which paves the way for driving the scraper 5 to scrape off the residual polishing agent on the automobile decorative panel at the end of the polishing machine body 1 away from the nozzle 21.

[0024] The scraper 5 includes a scraper box 51 fixedly connected to the bottom of the polishing machine body 1. The scraper box 51 is arc-shaped. A scraper groove 52 is formed at one end of the scraper box 51 away from the handle 11. An electric rod 53 is fixedly connected to the inner wall of the scraper groove 52. The electric rod 53 is arc-shaped. The conductive sheet 1 45 and the conductive sheet 2 47 are respectively connected to the electric rod 53. The inner wall of the scraper box 51 is fixedly connected with a protrusion 54, and the protrusion 54 is located above the scraper groove 52; A fixing box 55 is slidably connected to the periphery of the electric rod 53, a fixing hole 56 is provided at the upper end of the fixing box 55, a spring 2 57 is fixedly connected to the inner wall of the fixing hole 56, a scraper 58 is fixedly connected to one end of the spring 2 57 away from the inner wall of the fixing hole 56, and one end of the scraper 58 away from the spring 2 57 is located outside the scraping box 51, and the scraper 58 is slidably connected to the electric rod 53.

[0025] When the conductive sheet 1 45 contacts the conductive sheet 2 47 , since the conductive sheet 1 45 and the conductive sheet 2 47 are respectively connected to the electric rod 53 circuit, the electric rod 53 is energized at this time, and the electric rod 53 drives the fixed box 55 located on the periphery of the electric rod 53 to slide. When the fixed box 55 slides, the scraper 58 located inside the fixed hole 56 slides along the electric rod 53. When the scraper 58 abuts against the protrusion 54, the scraper 58 squeezes the spring 2 57. At this time, the scraper 58 moves toward the car decorative panel, so that the scraper 58 is close to the car decorative panel. At this time, the continuous sliding of the fixed box 55 will drive the scraper 58 to scrape the polishing agent. When the fixed box 55 slides to the other end, the electric rod 53 is de-energized. At this time, the top of the scraper 58 no longer abuts against the protrusion 54. When the spring 2 57 is reset, it drives the scraper 58 to be lifted, which is convenient for the operator to observe whether the polished position is smooth. It is very convenient to use.

[0026] Embodiment 2

[0027] Different from the first embodiment, when there is no need to spray the polishing agent, the rotating ring 32 is rotated counterclockwise. At this time, the grinding aid rod 33 at the upper end of the rotating ring 32 is located in the grinding aid groove 35 and rotates. The grinding aid rod 33 no longer abuts against the inner wall of the grinding aid groove 35. At this time, the nozzle 21 no longer sprays the polishing agent, and the fixed rod 41 at the lower end of the rotating ring 32 can still drive the driving rod 42 to slide, thereby realizing the separate driving of the scraping mechanism 4, avoiding the waste of polishing agent and facilitating the operator to scrape the polishing agent.

[0028] Embodiment 3

[0029] A polishing process for a real wood decorative plate of an automobile, comprising a liquid storage box 2 carrying a polishing agent inside, used for assisting the grinding of the automobile decorative plate, rotating a rotating ring 32 to drive a lever 34 to shift a shifting plate 26, and a nozzle 21 to open to spray the polishing agent; Rotating the rotating ring 32 can drive the driving rod 42 to slide, and the driving rod 42 drives the rotating disk 43 to rotate so that the conductive sheet 1 45 contacts the conductive sheet 2 47, and the electric rod 53 is energized to drive the scraper 58 to move in a fan shape to scrape off the polishing agent behind the polishing machine body 1; When the fixed box 55 slides, the upper part of the scraper 58 abuts against the protrusion 54, so that the scraper 58 moves downward. The scraper 58 is put down when working and raised when not working.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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 automobile real wood decorative panels, comprising: A polishing machine body (1), a handle (11) being fixedly connected to a side of the polishing machine body (1), and a liquid storage box (2) being fixedly connected to an upper end of the polishing machine body (1); It is characterized by: also including: A grinding aid mechanism (3), the grinding aid mechanism (3) being located above the polishing machine body (1), and the grinding aid mechanism (3) being capable of providing polishing agent for the polishing machine body (1); The grinding aid mechanism (3) comprises a spring (31) fixedly connected to the outer wall of the handle (11); an end of the spring (31) away from the handle (11) is fixedly connected to a rotating ring (32); the rotating ring (32) is located outside the handle (11) and is rotatably connected to the handle (11); A scraping mechanism (4), the scraping mechanism (4) being located below the polishing machine body (1), and the scraping mechanism (4) being capable of scraping off the polishing agent sprayed out by the grinding aid mechanism (3); The scraping mechanism (4) comprises a fixed rod (41) fixedly connected to the bottom of the rotating ring (32); the outer periphery of the fixed rod (41) is rotatably connected to a driving rod (42); one end of the driving rod (42) away from the fixed rod (41) is fixedly connected to a rotating disk (43); the rotating disk (43) is located below the driving rod (42); one end of the rotating disk (43) close to the polishing machine body (1) is rotatably connected to a positioning rod (44); the positioning rod (44) is fixedly connected to the outer wall of the polishing machine body (1).

2. The automobile real wood decorative plate polishing equipment according to claim 1, characterized in that: The end of the liquid storage box (2) away from the polishing machine body (1) is fixedly connected to a nozzle (21), the nozzle (21) is located at the end of the polishing machine body (1), the upper end of the nozzle (21) is fixedly connected to a support rod (22), the outer wall of the support rod (22) is fixedly connected to a torsion spring (23), the end of the torsion spring (23) away from the support rod (22) is fixedly connected to a support ring (24), the support ring (24) is located at the periphery of the support rod (22) and is rotatably connected to the support rod (22), the lower end of the support ring (24) is fixedly connected to a baffle (25), the baffle (25) abuts the nozzle (21), and the upper end of the support ring (24) is fixedly connected to a paddle (26).

3. The automobile real wood decorative plate polishing equipment according to claim 2 is characterized in that: The upper end of the handle (11) is fixedly connected to a grinding aid rod (33), a lever (34) is arranged above the grinding aid rod (33), a grinding aid groove (35) is provided at the lower end of the lever (34), the grinding aid rod (33) is located inside the grinding aid groove (35) and is rotatably connected to the grinding aid groove (35), and an end of the lever (34) away from the grinding aid rod (33) is located on one side of a lever plate (26), and the lever (34) abuts against the lever plate (26).

4. The automobile real wood decorative plate polishing device according to claim 3 is characterized in that: The shifting rod (34) is provided with a limiting groove (36) at one end close to the polishing machine body (1); the outer wall of the polishing machine body (1) is fixedly connected to a limiting rod (37); the limiting rod (37) is located inside the limiting groove (36) and is slidably connected to the limiting groove (36).

5. The automobile real wood decorative plate polishing device according to claim 4, characterized in that: A conductive sheet 1 (45) is fixedly connected to the bottom of the rotating disk (43); a trigger box (46) is fixedly connected to the outer wall of the polishing machine body (1); the trigger box (46) is located outside the conductive sheet 1 (45); two conductive sheets 2 (47) are fixedly connected to the inner wall of the trigger box (46); the two conductive sheets 2 (47) are respectively located at two ends of the conductive sheet 1 (45); and a scraping member (5) capable of scraping off the polishing agent is provided at the bottom of the polishing machine body (1).

6. The automobile real wood decorative plate polishing device according to claim 5, characterized in that: The scraper (5) comprises a scraper box (51) fixedly connected to the bottom of the polishing machine body (1), the scraper box (51) being arc-shaped, a scraper groove (52) being provided at one end of the scraper box (51) away from the handle (11), an electric rod (53) being fixedly connected to the inner wall of the scraper groove (52), the electric rod (53) being arc-shaped, and the first conductive sheet (45) and the second conductive sheet (47) being respectively connected to the electric circuit of the electric rod (53).

7. The automobile real wood decorative plate polishing device according to claim 6, characterized in that: A protrusion (54) is fixedly connected to the inner wall of the scraper box (51), and the protrusion (54) is located above the scraper groove (52).

8. The automobile real wood decorative plate polishing device according to claim 6, characterized in that: A fixing box (55) is slidably connected to the periphery of the electric rod (53); a fixing hole (56) is provided at the upper end of the fixing box (55); a second spring (57) is fixedly connected to the inner wall of the fixing hole (56); an end of the second spring (57) away from the inner wall of the fixing hole (56) is fixedly connected to a scraper (58); an end of the scraper (58) away from the second spring (57) is located outside the scraper box (51); and the scraper (58) is slidably connected to the electric rod (53).

9. A process for polishing a real wood decorative plate for an automobile, used in conjunction with a polishing device for a real wood decorative plate for an automobile as claimed in any one of claims 1 to 9, characterized in that: The liquid storage box (2) carries polishing agent inside, which is used for assisting the grinding of automobile decorative panels. The rotating ring (32) can be rotated to drive the lever (34) to move the lever plate (26), and the nozzle (21) can be opened to spray out the polishing agent. Rotating the rotating ring (32) can drive the driving rod (42) to slide, and the driving rod (42) drives the rotating disk (43) to rotate so that the conductive sheet 1 (45) contacts the conductive sheet 2 (47), and the electric rod (53) is energized to drive the scraper (58) to move in a fan shape to scrape off the polishing agent behind the polishing machine body (1); When the fixed box (55) slides, the upper part of the scraper (58) abuts against the protrusion (54), so that the scraper (58) moves downward. The scraper (58) is put down when it is working and is raised when it is not working.

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