Building decorative plate polishing device

Abstract

The utility model discloses a building decorative plate polishing device which comprises a box body, a polishing structure and a supporting table are arranged in the box body, a first notch groove and a second notch groove are formed in the supporting table, a first fixing frame is arranged in the first notch groove in a sliding connection mode, and a second fixing frame is arranged in the second notch groove in a sliding connection mode. Clamping air cylinders are arranged in the supporting table, work independently and are matched with the first fixing frames and the second fixing frames, an air blowing pipe is arranged at one end in the box body, a dust suction pipe is arranged at the other end in the box body, a circulating fan is arranged at the upper end of the box body, a dust collecting box is arranged at one end of the circulating fan, and a dust filtering net is arranged in the dust collecting box. According to the device, the position of the fixing structure can be switched, polishing can be carried out conveniently, dust can be cleaned conveniently, and the polishing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building decoration, and more specifically, to a building decoration board grinding device. Background Art

[0002] Building decorative panels are common panels in construction. In addition to protecting the walls, they can also enrich the wall structure and make the building more beautiful. Decorative panels generally need to be polished before installation to make them easier to install and have better decorative effects. Compared with traditional manual polishing, polishing with a polishing device can reduce labor intensity and improve work efficiency.

[0003] A common grinding device is composed of a support combination and a grinding structure. Most of the support structures are equipped with a fixed structure to fix the building decorative panel to ensure stability during grinding. However, the fixed structure needs to contact the surface of the building decorative panel to play a fixed limiting role. Common fixed structures will contact the side end structure of the building decorative panel. Some fixed structures will also contact the upper end surface to improve stability. When the grinding structure is grinding the edge of the building decorative panel, the fixed structure may interfere with the grinding mechanism, affecting the movement of the grinding structure, making it impossible for the grinding structure to contact the surface of the decorative panel, and unable to perform normal grinding processing, requiring workers to manually grind. Grinding, or adjusting the position of the decorative panel and then grinding again, affects work efficiency; moreover, during the grinding process, high-speed friction will cause a large amount of debris and dust to be generated by the building decorative panel. These foreign objects will splash outward and fall around the grinding position. When the grinding structure moves toward the periphery, these dusts will enter the grinding mechanism and the building decorative panel, affecting the grinding of subsequent positions and affecting the grinding quality; in addition, in order to prevent a large amount of dust from splashing and affecting the surrounding environment, a box is generally set up to provide a closed space for grinding. When taking and placing the building decorative panels, workers need to go deep into the box to take out the building decorative panels. The taking and placing are relatively unstable, which affects work efficiency. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a building decorative board grinding device to solve the technical problem of the inconvenience of working of the grinding device mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building decorative board grinding device, comprising a box body, a grinding structure is provided on the upper part of the box body, and a support platform is provided on the lower part, the grinding structure cooperates with the support platform, a first notch groove and a second notch groove are provided on the support platform, and the first notch groove and the second notch groove are both provided with multiple groups around the support platform, a first fixing frame is provided in a sliding connection in the first notch groove, and a second fixing frame is provided in a sliding connection in the second notch groove, and a clamping cylinder is provided in the support platform, and the clamping cylinder is provided in multiple groups and works independently to cooperate with each of the first fixing frame and the second fixing frame;

[0008] A blowing pipe is provided at one end of the box body, and a dust suction pipe is provided at the other end. A circulating fan is provided at the upper end of the box body. A dust collecting box is provided at one end of the circulating fan. A dust filter is provided in the dust collecting box. The dust suction pipe, the dust collecting box, the circulating fan and the blowing pipe are connected in sequence.

[0009] The utility model is further configured that a support plate is provided at the outer end of the box body, a guide groove is opened on the support plate, and a support wheel is provided at the lower end of the support platform, and the support wheel cooperates with the guide groove to facilitate the placement of the building decoration panel.

[0010] The utility model is further configured as follows: a partition frame is provided at the lower end of the support platform, the partition frame is located above the support wheel, a box door is provided at the outer end of the box body, the box door cooperates with the box body, a pressure strip is provided on the inner side of the box door, and the pressure strip cooperates with the partition frame to ensure the support stability of the support platform.

[0011] The utility model is further configured that an observation port is provided on the box door, and a protective glass is provided in the observation port to facilitate observation and judgment of the grinding status.

[0012] The utility model is further configured such that the first fixing frame and the second fixing frame both include a side frame, a lower support frame and an upper pressure frame, and the lower support frame is fixedly connected to the side frame and slidably connected to the side frame to provide a fixing effect.

[0013] The utility model is further configured as follows: a sliding plate is provided at one end of the upper pressure frame, a sliding opening is opened on the side bracket, the sliding plate and the sliding opening are slidably matched, a telescopic gas rod is provided at one end of the side bracket, and the output end of the telescopic gas rod is connected to the sliding plate to adapt to building decorative panels of different thicknesses.

[0014] The utility model is further configured such that a diversion pipe is provided at the lower end of the blowing pipe, an air outlet is provided on the diversion pipe, a plurality of air outlets are provided and are evenly arranged on the diversion pipe, a confluence pipe is provided at the lower end of the dust suction pipe, a dust hood is provided on the confluence pipe, a plurality of dust hoods are provided and cooperate with the confluence pipe to make the gas flow more uniform and the cleaning more complete.

[0015] The utility model is further configured that the polishing structure includes a moving module, a pressing module and a polishing module, the moving module cooperates with the box body, the pressing module is arranged at the lower end of the moving module, and the polishing module is arranged at the lower end of the box body module, providing a flexible polishing structure.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a building decorative board grinding device, which has the following beneficial effects:

[0018] 1. The building decorative panel is supported by a support platform for grinding. The first fixing frame and the second fixing frame cooperate to provide two sets of fixing mechanisms. The first fixing frame and the second height frame contact the building decorative panel at different positions to provide a fixing effect. During grinding, the first notch groove and the second notch groove provide space for the movement of the first fixing frame and the second fixing frame. The clamping cylinder provides power. When the grinding structure grinds the contact surface of the fixed structure, the two sets of clamping fixing structures work alternately, so that the fixed structure avoids the grinding structure, providing sufficient space for grinding and improving the grinding efficiency.

[0019] 2. A closed grinding space is provided through the cooperation of the box body and the box door. The circulating fan provides power, and the airflow is introduced back into the box through the blowing pipe box to clean up the dust, debris and other foreign matters generated by grinding. The dust is then absorbed by the suction pipe and sent to the dust collecting box for collection. The blowing pipe and the dust suction pipe are both powered by the circulating fan to stabilize the circulating airflow, so that the dust, debris and other foreign matters on the building decorative panels can be cleaned in time to avoid affecting the grinding quality and ensure the grinding quality.

[0020] 3. The support plate provides additional support space, and the support table shell is moved by the support wheels. When preparing for or completing grinding, the support table can be pulled out through the guidance of the guide groove, which is convenient for taking and placing the building decorative panels. The cooperation of the box door, the pressure strip and the observation port can ensure the stability of the support table during grinding, which is convenient for workers to operate and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of a building decorative panel grinding device in the utility model;

[0022] Figure 2 This is a schematic diagram of the structure in which the support platform in the utility model slides out of the box body to cooperate with the support plate;

[0023] Figure 3 It is a schematic diagram of the coordination structure of the support platform, the first fixing frame and the second fixing frame in the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first fixing frame in the utility model;

[0025] Figure 5 This is a schematic diagram of the bottom of the box body and the blow pipe matching structure in the utility model;

[0026] Figure 6 It is a schematic diagram of the bottom of the box body and the dust suction pipe matching structure in the utility model.

[0027] In the figure: 1. box body; 2. grinding structure; 3. support platform; 4. first notch groove; 5. second notch groove; 6. first fixed frame; 7. second fixed frame; 8. blowing pipe; 9. dust suction pipe; 10. circulating fan; 11. dust collecting box; 12. dust filter; 13. support plate; 14. guide groove; 15. support wheel; 16. partition frame; 17. box door; 18. pressure strip; 19. observation port; 20. protective glass; 21. side bracket; 22. lower support frame; 23. upper pressure frame; 24. sliding plate; 25. sliding port; 26. telescopic gas rod; 27. shunt pipe; 28. air outlet; 29. ​​confluence pipe; 30. dust hood; 31. moving module; 32. lower pressure module; 33. grinding module; 101. clamping cylinder. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] See also Figure 1-6 A building decorative board grinding device comprises a box body 1, a grinding structure 2 is provided at the upper part of the box body 1, a support platform 3 is provided at the lower part, the grinding structure 2 cooperates with the support platform 3, a first notch groove 4 and a second notch groove 5 are provided on the support platform 3, multiple groups of the first notch groove 4 and the second notch groove 5 are provided around the support platform 3, a first fixing frame 6 is provided in a sliding connection in the first notch groove 4, a second fixing frame 7 is provided in a sliding connection in the second notch groove 5, a clamping cylinder 101 is provided in the support platform 3, multiple groups of the clamping cylinder 101 are provided, and they work independently and cooperate with each of the first fixing frame 6 and the second fixing frame 7;

[0032] A blowing pipe 8 is provided at one end of the box body 1, and a dust suction pipe 9 is provided at the other end. A circulating fan 10 is provided at the upper end of the box body 1. A dust collecting box 11 is provided at one end of the circulating fan 10. A dust filter 12 is provided in the dust collecting box 11. The dust suction pipe 9, the dust collecting box 11, the circulating fan 10 and the blowing pipe 8 are connected in sequence.

[0033] In this embodiment, a grinding space is provided by the box body 1. When the building decorative panel is to be polished, the building decorative panel is placed on the support platform 3 and supported by the support platform 3. Then, the corresponding first fixing frame 6 and the second height frame are driven to move by multiple clamping cylinders 101, so that the first fixing frame 6 moves toward the center along the first notch, and the second fixing frame 7 moves toward the center along the second notch, so that the first fixing frame 6 and the second fixing frame 7 in four directions are in contact with the building decorative panel to clamp the building decorative panel. During the polishing process, when it is necessary to polish the edge of the building decorative panel, the first fixing frame 6 or the second fixing frame 7 at the corresponding position will be loosened and fixed, and under the drive of the corresponding clamping cylinder 101, it will leave the building decorative panel, so that the polishing structure 2 can polish the corresponding position. The first fixing frame 6 and the second height frame are alternately fixed to ensure stability during polishing.

[0034] More specifically, during the grinding process of the equipment, the circulating fan 10 is started, and the circulating fan 10 provides pressure to make the gas flow, and blow it into the box body 1 along the blowing pipe 8, so as to blow the dust generated by the grinding, blow away the dust on the building decorative panels, and collect the dust through the dust suction pipe 9, so that the dust enters the dust collecting box 11 through the dust suction pipe 9, and the dust collecting box 11 filters the airflow through the dust filter net 12, leaving the dust, and the filtered gas will flow into the box body 1 again under the guidance of the circulating fan 10 and the blowing pipe 8, forming a relatively stable circulating airflow.

[0035] See also Figure 1 and Figure 2 As an implementation method for convenient placement and removal: a support plate 13 is provided at the outer end of the box body 1, a guide groove 14 is opened on the support plate 13, and a support wheel 15 is provided at the lower end of the support platform 3, and the support wheel 15 cooperates with the guide groove 14.

[0036] Specifically, when using the equipment, the support platform 3 can be pulled, and the support platform 3 cooperates with the guide groove 14 through the support wheel 15 to make the support platform 3 slide out of the box body 1, move along the guide groove 14, and move to above the support plate 13. At this time, the support platform 3 leaves the box body 1 and is exposed to the outside world, which is convenient for taking out or placing the building decoration panel on the support platform 3, and then the support platform 3 is pushed back into the box body 1 for polishing.

[0037] Please refer to Figure 1As a further implementation of the support platform: a partition frame 16 is provided at the lower end of the support platform 3, and the partition frame 16 is located above the support wheel 15. A box door 17 is provided at the outer end of the box body 1, and the box door 17 cooperates with the box body 1. A pressure strip 18 is provided on the inner side of the box door 17, and the pressure strip 18 cooperates with the partition frame 16.

[0038] Specifically, by cooperating with the box door 17 and the box body 1, a closed space is formed when the equipment is working to prevent debris from spilling out during grinding. When the box door 17 is closed, it will contact the partition frame 16 through the pressure strip 18 and cooperate with the box body 1 to clamp the partition frame 16, thereby fixing the position of the support table 3.

[0039] Please refer to Figure 1 As a further implementation of the box door: an observation port 19 is provided on the box door 17 , and a protective glass 20 is provided in the observation port 19 .

[0040] Specifically, the observation port 19 is closed by the protective glass 20 to ensure the sealing effect of the box door 17, and the interior of the box body 1 can be directly observed through the observation port 19 to judge the grinding status.

[0041] Please refer to Figure 4 As a further implementation of the fixing frame: the first fixing frame 6 and the second fixing frame 7 both include a side bracket 21, a lower support frame 22 and an upper pressure frame 23, the lower support frame 22 is fixedly connected to the side bracket 21, and is slidably connected to the side bracket 21.

[0042] Specifically, the side bracket 21 provides support capacity. When clamping and fixing the building decorative panel, the side bracket 21 contacts the side end of the building decorative panel, and the side brackets 21 in multiple directions cooperate to limit the positioning of the building decorative panel in the horizontal direction. The lower support frame 22 contacts the lower end of the building decorative panel, and the upper pressure frame 23 contacts the upper end of the building decorative panel. The connection and cooperation clamp the building decorative panel to keep the building decorative panel stable.

[0043] Please refer to Figure 4 As a further implementation of the upper pressure frame: a sliding plate 24 is provided at one end of the upper pressure frame 23, a sliding opening 25 is opened on the side bracket 21, the sliding plate 24 and the sliding opening 25 are slidably matched, and a telescopic gas rod 26 is provided at one end of the side bracket 21, and the output end of the telescopic gas rod 26 is connected to the sliding plate 24.

[0044] Specifically, the control capability is provided by the telescopic cylinder, the movable end of the telescopic cylinder drives the sliding plate 24 to move, the sliding plate 24 moves along the sliding opening 25, and drives the upper pressing frame 23 to move, thereby adjusting the distance between the upper pressing frame 23 and the lower support frame 22 to adapt to building decorative panels of different thicknesses.

[0045] Please refer to Figure 5 and Figure 6As a further implementation method of the pipeline: a shunt pipe 27 is provided at the lower end of the blowing pipe 8, and an air outlet 28 is provided on the shunt pipe 27. There are multiple air outlets 28 and they are evenly arranged on the shunt pipe 27. A confluence pipe 29 is provided at the lower end of the dust suction pipe 9, and a dust hood 30 is provided on the confluence pipe 29. There are multiple dust hoods 30 and they cooperate with the confluence pipe 29.

[0046] Specifically, the airflow enters the diversion pipe 27 along the blowing pipe 8, and after diversion, it is blown out from multiple air outlets 28 and evenly blown into the box body 1 to clean the dust and debris. Multiple dust hoods 30 are provided to more effectively absorb foreign matter such as dust and debris. The airflow converges in the confluence pipe 29 with the foreign matter and leaves along the dust collection pipe 9.

[0047] Please refer to Figure 5 As a further implementation of the grinding mechanism: the grinding structure 2 includes a moving module 31, a pressing module 32 and a grinding module 33, the moving module 31 cooperates with the box body 1, the pressing module 32 is arranged at the lower end of the moving module 31, and the grinding module 33 is arranged at the lower end of the box body 1 module.

[0048] Specifically, the pressing module 32 works to make the polishing module 33 descend and contact the building decorative board, and polishing is performed by the polishing module 33. During this period, the moving module 31 cooperates with the box body 1 to drive the pressing mold and the polishing module 33 to move in the horizontal direction, so that the polishing module 33 polishes the surface of the building decorative board.

[0049] In summary, when the overall equipment is in use (or running):

[0050] When the equipment is used for grinding, each electrical device is connected to the external power supply, the box door 17 is opened to expose the interior of the box body 1, and the support platform 3 is pulled out. The support platform 3 cooperates with the guide groove 14 through the support wheel 15 to make the support platform 3 slide out of the box body 1, and move stably along the guide groove 14 to move above the support plate 13. At this time, the support platform 3 leaves the box body 1 and is exposed to the outside world, so that the building decorative panel is placed on the support platform 3 and supported by the support platform 3. Then, multiple clamping cylinders 101 are controlled to drive the corresponding first fixing frame 6 and second height frame to move, so that the first fixing frame 6 moves toward the center along the first notch, and the second fixing frame 7 moves toward the center along the second notch, so that the first fixing frame 6 and the second fixing frame 7 in four directions are in contact with the building decorative panel, and the building decorative panel is contacted in the horizontal direction through multiple sets of side brackets 21. The building decorative panel is clamped by limiting the positioning, providing supporting capacity through the side bracket 21, contacting with the lower end of the building decorative panel through the lower support frame 22, providing control capacity through the telescopic cylinder, and the movable end of the telescopic cylinder drives the sliding plate 24 to move, and the sliding plate 24 moves along the sliding opening 25, and drives the upper pressing frame 23 to move, so that the upper pressing frame 23 contacts with the upper end of the building decorative panel, and the upper pressing frame 23 cooperates with the lower support frame 22 to clamp the building decorative panel, so that the building decorative panel remains stable during polishing, and then the support platform 3 is pushed back into the box body 1, and the box door 17 is closed. It will contact with the partition frame 16 through the pressure strip 18, and cooperate with the box body 1 to clamp the partition frame 16, thereby fixing the position of the support platform 3, and the polishing work can be carried out. When the building decorative panel is replaced after the polishing is completed, the box door 17 is opened, the support platform 3 is pulled out, and the fixed limit is released, which is convenient for taking and placing the building decorative panel.

[0051] When polishing, the polishing structure 2 is operated, wherein the moving module 31, the pressing module 32 and the polishing module 33 are all common control and polishing devices on the market, which can be purchased directly. The specific structure and principle thereof are not described in detail here. The pressing module 32 is operated to drive the polishing module 33 to descend, so that the polishing module 33 contacts the building decorative board for polishing. During the process, the moving module 31 drives the pressing mold and the polishing module 33 to move in the horizontal direction, so that the polishing module 33 performs polishing on the surface of the building decorative board. When the edge of the building decorative board needs to be polished, the first fixing frame 6 or the second fixing frame 7 at the corresponding position is loosened and fixed away from the building decorative board by controlling the corresponding clamping cylinder 101 and the telescopic cylinder, so as to provide space for the work of the polishing module 33, and facilitate the polishing of the corresponding position by the polishing structure 2. The first fixing frame 6 and the second height frame are alternately fixed to ensure stability during polishing. In addition, during the polishing process, the box door 17 cooperates with the box body 1 to form a The closed space is used to prevent the debris from overflowing during grinding, and the circulating fan 10 is started. The circulating fan 10 provides pressure to make the gas flow and blow into the box body 1 along the blowing pipe 8. The airflow enters the diversion pipe 27 along the blowing pipe 8. After diversion, it is evenly blown out from multiple air outlets 28 to blow away the dust and debris generated by grinding. The dust and debris are cleaned, and multiple dust hoods 30 are provided to more effectively absorb foreign matter such as dust and debris, and the dust is collected through the dust collection pipe 9. The airflow carries foreign matter in the confluence pipe 29. The dust and debris move along the airflow and enter the dust box 11 through the dust collection pipe 9. The airflow is filtered by the dust filter 12 in the dust box 11, and foreign matter is left behind. The filtered gas is pressurized by the circulating fan 10 and guided by the blowing pipe 8 and then flows into the box body 1, forming a relatively stable circulating airflow. The observation port 19 is closed by the protective glass 20 to ensure the closing effect of the box door 17. The interior of the box body 1 can be directly observed through the observation port 19 to judge the grinding status.

[0052] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A building decorative plate grinding device, comprising a box (1), wherein a grinding structure (2) is provided in the upper part of the box (1), wherein: A support platform (3) is provided at the lower part, the grinding structure (2) cooperates with the support platform (3), a first notch groove (4) and a second notch groove (5) are provided on the support platform (3), multiple groups of the first notch groove (4) and the second notch groove (5) are arranged around the support platform (3), a first fixed frame (6) is slidably connected in the first notch groove (4), and a second fixed frame (7) is slidably connected in the second notch groove (5), and a clamping cylinder (101) is provided in the support platform (3), and multiple groups of the clamping cylinder (101) are arranged and work independently to cooperate with each first fixed frame (6) and the second fixed frame (7); A blowing pipe (8) is provided at one end of the box body (1), and a dust suction pipe (9) is provided at the other end; a circulating fan (10) is provided at the upper end of the box body (1); a dust collecting box (11) is provided at one end of the circulating fan (10); a dust filter (12) is provided in the dust collecting box (11); the dust suction pipe (9), the dust collecting box (11), the circulating fan (10) and the blowing pipe (8) are sequentially connected.

2. The architectural decorative board grinding device according to claim 1 is characterized in that: The outer end of the box body (1) is provided with a support plate (13), a guide groove (14) is provided on the support plate (13), and the lower end of the support platform (3) is provided with a support wheel (15), and the support wheel (15) cooperates with the guide groove (14).

3. The architectural decorative board grinding device according to claim 2 is characterized in that: A partition frame (16) is provided at the lower end of the support platform (3), and the partition frame (16) is located above the support wheel (15). A box door (17) is provided at the outer end of the box body (1), and the box door (17) cooperates with the box body (1). A pressure strip (18) is provided on the inner side of the box door (17), and the pressure strip (18) cooperates with the partition frame (16).

4. The architectural decorative board grinding device according to claim 3 is characterized in that: The box door (17) is provided with an observation port (19), and a protective glass (20) is provided in the observation port (19).

5. The architectural decorative board grinding device according to claim 1, characterized in that: The first fixing frame (6) and the second fixing frame (7) both comprise a side bracket (21), a lower support frame (22) and an upper pressing frame (23); the lower support frame (22) is fixedly connected to the side bracket (21) and is slidably connected to the side bracket (21).

6. The architectural decorative board grinding device according to claim 5, characterized in that: A sliding plate (24) is provided at one end of the upper pressure frame (23), a sliding opening (25) is provided on the side bracket (21), the sliding plate (24) and the sliding opening (25) are slidably matched, and a telescopic gas rod (26) is provided at one end of the side bracket (21), and the output end of the telescopic gas rod (26) is connected to the sliding plate (24).

7. The architectural decorative board grinding device according to claim 1, characterized in that: The lower end of the blowing pipe (8) is provided with a shunt pipe (27), and the shunt pipe (27) is provided with an air outlet (28). There are a plurality of air outlets (28) which are evenly arranged on the shunt pipe (27). The lower end of the dust suction pipe (9) is provided with a confluence pipe (29), and the confluence pipe (29) is provided with a dust hood (30). There are a plurality of dust hoods (30) which cooperate with the confluence pipe (29).

8. The architectural decorative board grinding device according to claim 1, characterized in that: The polishing structure (2) comprises a moving module (31), a pressing module (32) and a polishing module (33); the moving module (31) cooperates with the box (1); the pressing module (32) is arranged at the lower end of the moving module (31); and the polishing module (33) is arranged at the lower end of the module of the box (1).

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