Boiler support polishing device and polishing method

Abstract

The present invention discloses a boiler support polishing device and polishing method, comprising a bottom plate, a fixing rod and a fixing frame are fixedly connected to the upper side of the bottom plate, a fixing plate is fixedly connected to the upper end of the fixing rod, a dust removal unit is arranged on the upper side of the fixing plate, an annular guide rail is fixedly connected to the lower side of the fixing frame, a guide block is slidably connected to the outer side of the annular guide rail, a gear 2 is fixedly connected to the lower side of the guide block, a motor 1 is fixedly connected to the upper side of the fixing frame, and a gear 1 is fixedly connected to the output end of the motor 1. The present invention relates to the field of boiler support polishing. The boiler support polishing device and polishing method are provided with an annular placement platform, a polishing plate, a clamping block, an annular tube 1, an annular tube 2, an absorption head 1, an absorption head 2, an absorption box and a containing box, so that dust on the outer and inner sides of the support can be absorbed simultaneously when the boiler support is polished, thereby increasing the dust removal effect.

Description

Technical Field

[0001] The invention relates to the field of boiler support polishing, in particular to a boiler support polishing device and a polishing method. Background Art

[0002] Boiler support refers to a series of support and fixing measures taken during boiler installation or maintenance to ensure construction safety and structural stability. When processing boiler support, a polishing device is required to remove the oxide layer and rust on the surface of the boiler support.

[0003] In deep foundation pit projects, the annular support beams in boiler support are required as part of the support structure to support and protect the boiler. When the annular support beams are polished, more dust will be generated. This dust is only sucked away by a vacuum cleaner in a single direction, so that the dust absorption range is small and the dust removal effect is poor. More dust is not conducive to increasing equipment wear. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a boiler support polishing device and a polishing method, which solve the problem of generating a lot of dust when polishing the boiler support.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A boiler support polishing device and polishing method, comprising a bottom plate, a fixing rod and a fixing frame are fixedly connected on the upper side of the bottom plate, a fixing plate is fixedly connected on the upper end of the fixing rod, a dust removal unit is arranged on the upper side of the fixing plate, an annular guide rail is fixedly connected on the lower side of the fixing frame, a guide block is slidably connected on the outer side of the annular guide rail, a gear 2 is fixedly connected on the lower side of the guide block, a motor 1 is fixedly connected on the upper side of the fixing frame, a gear 1 is fixedly connected on the output end of the motor 1, an electric push rod 1 is fixedly connected on the lower side of the gear 2, a lifting frame is fixedly connected on the lower end of the electric push rod 1, a motor 2 is fixedly connected on the upper side of the lifting frame, and a polishing disc is fixedly connected on the output end of the motor 2;

[0007] The dust collecting unit comprises a vertical plate, the vertical plate is fixedly connected to the upper sides of the left and right ends of the fixed plate, the upper sides of the vertical plates on the left and right sides are fixedly connected with connecting blocks, the lower sides of the connecting blocks are fixedly connected with mounting blocks, the lower sides of the mounting blocks are fixedly connected with an annular placing platform, the upper side of the annular placing platform is fixedly connected with a plurality of top blocks, the outer side of the mounting block is fixedly connected with an electric push rod 2, the end of the electric push rod 2 close to the top block is fixedly connected with a clamping block, the upper side of the fixed plate is rotatably connected with a rotating tube, the upper end of the rotating tube is fixedly connected with a connecting tube, the upper side of the connecting tube is fixedly connected with a fixed tube, the upper end of the fixed tube is fixedly connected with a conveying disc, the outer side of the conveying disc is fixedly connected with a plurality of branch pipes, the outer ends of the branch pipes are fixedly connected with an annular tube 1, the upper side of the annular tube 1 is fixedly connected with a plurality of absorption heads 1, the outer side of the connecting pipe is fixedly connected with a connecting pipe, the upper end of the connecting pipe is fixedly connected with an annular tube 2, and the upper side of the annular tube 2 is fixedly connected with a plurality of absorption heads 2.

[0008] Preferably, a control rod is rotatably connected to the upper side of the fixed plate, a gear three is fixedly connected to the outer side of the control rod and the outer side of the rotating tube, a motor three is fixedly connected to the lower side of the fixed plate, and the output end of the motor three is fixedly connected to the lower end of the control rod.

[0009] Preferably, the lower side of the fixed plate is fixedly connected with an absorption box and a containing box, the lower side of the rotating tube is rotatably connected with a bottom tube, a feeding pipe is fixedly connected between the bottom tube and the containing box, a conveying pipe is fixedly connected between the absorption box and the containing box, an exhaust pipe is fixedly connected to the right side of the absorption box, a piston plate is provided on the inner side of the absorption box, a lifting rod is fixedly connected on the upper side of the piston plate, a fixing block is fixedly connected on the upper side of the fixed plate, a sliding groove is provided on the upper side of the fixed block, a sliding block is slidably connected on the inner side of the sliding groove, a control plate is rotatably connected on the upper side of the sliding block, a cam is fixedly connected to the control plate at the upper end of the control rod, the cam is rotatably connected to the control plate, the lower side of the sliding block is fixedly connected to the bottom block, a rectangular groove is provided on the upper side of the lifting rod, an inclined plate is rotatably connected to the inner side of the rectangular groove, and the inclined plate is rotatably connected to the bottom block.

[0010] Preferably, a filter plate is fixedly connected to the inner side of the containing box, and a drawer is provided on the inner side of the containing box.

[0011] Preferably, one-way valves are provided on the outer sides of the air outlet pipe and the delivery pipe.

[0012] Preferably, the top block and the clamping block are both arranged in an arc-shaped structure.

[0013] Preferably, the connection block is arranged in an L-shaped structure, and a rectangular hole is opened on the outer side of the connection block.

[0014] Preferably, the first absorption head is located on the inner side of the annular placement platform, and the second absorption head is located on the outer side of the annular placement platform.

[0015] A boiler support polishing method comprises the following steps:

[0016] S1. Place the annular boiler support on the annular placement platform, and control the electric push rod 2 to drive the clamping block to clamp the workpiece;

[0017] S2, control motor 1 and motor 2 to start, motor 1 rotates the polishing disc, motor 2 controls the polishing disc to rotate, and then controls electric push rod 1 to drive the polishing disc to descend, so that the polishing disc performs polishing operation on the annular boiler support;

[0018] S3, start motor 3, control the outer absorption head 2 and the inner absorption head 1 to rotate, and the absorption head 1 and the absorption head 2 absorb the dust during the polishing process to achieve the dust removal effect

[0019] Beneficial Effects

[0020] The present invention provides a boiler support polishing device and polishing method. Compared with the prior art, the polishing device and polishing method have the following advantages:

[0021] (1) The boiler support polishing device and polishing method are provided with an annular placement platform, a polishing plate, a clamping block, an annular tube 1, an annular tube 2, an absorption head 1, an absorption head 2, an absorption box and a containing box, so that when polishing the boiler support, dust on the outer side and the inner side of the support can be absorbed at the same time, thereby improving the dust removal effect.

[0022] (2) The boiler support polishing device and polishing method are provided with a rotating tube, a gear three, a control rod and a motor three, so as to conveniently control the rotation of the absorption head one and the absorption head two, increase the dust removal range, and enhance the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall three-dimensional structure diagram of the present invention;

[0024] Figure 2 It is a cross-sectional three-dimensional structural diagram of the fixing frame in the figure of the present invention;

[0025] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0026] Figure 4 It is a three-dimensional structural diagram of the dust removal unit in the present invention;

[0027] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0028] Figure 6It is a partial three-dimensional structural diagram of the dust removal unit in the present invention;

[0029] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0030] Figure 8 It is a partially cutaway three-dimensional structural diagram of the dust removal unit in the present invention;

[0031] Fig. 9 for Figure 8 Enlarged view of point D in the middle.

[0032] In the figure: 1, bottom plate; 2, fixing rod; 3, fixing plate; 4, dust removal unit; 5, fixing frame; 6, motor 1; 7, gear 1; 8, circular guide rail; 9, guide block; 10, gear 2; 11, electric push rod 1; 12, lifting frame; 13, motor 2; 14, polishing plate; 401, rotating tube; 402, connecting tube; 403, vertical plate; 404, connecting block; 405, rectangular hole; 406, circular placement platform; 408, fixing tube; 409, conveying plate; 410, branch pipe; 411, motor 3; 412, circular tube 1; 413, absorption head 1; 414, top block; 4 15. Mounting block; 416. Electric push rod 2; 417. Clamping block; 418. Annular tube 2; 419. Absorbing head 2; 420. Connecting tube; 421. Fixed block; 422. Slide groove; 423. Sliding block; 424. Control rod; 425. Cam; 426. Control board; 427. Bottom block; 428. Lifting rod; 429. Rectangular groove; 430. Gear 3; 431. Absorbing box; 432. Piston plate; 433. Exhaust pipe; 434. Delivery pipe; 435. Bottom pipe; 436. Feeding pipe; 437. Container; 438. Filter plate; 439. Drawer; 440. Inclined plate. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiment 1:

[0035] See also Figure 1 - Fig. 9The present invention provides a technical solution: a boiler support polishing device and a polishing method, comprising a bottom plate 1, a fixing rod 2 and a fixing frame 5 are fixedly connected to the upper side of the bottom plate 1, a fixing plate 3 is fixedly connected to the upper end of the fixing rod 2, a dust removal unit 4 is arranged on the upper side of the fixing plate 3, an annular guide rail 8 is fixedly connected to the lower side of the fixing frame 5, a guide block 9 is slidably connected to the outer side of the annular guide rail 8, a gear 2 10 is fixedly connected to the lower side of the guide block 9, a motor 1 6 is fixedly connected to the upper side of the fixing frame 5, a gear 1 7 is fixedly connected to the output end of the motor 1 6, an electric push rod 1 11 is fixedly connected to the lower side of the gear 10, and the electric push rod 1 The lower end of 11 is fixedly connected with a lifting frame 12, the upper side of the lifting frame 12 is fixedly connected with a motor 2 13, and the output end of the motor 2 13 is fixedly connected with a polishing disk 14. When polishing the annular boiler support, the electric push rod 11 is controlled to drive the lifting frame 12 to descend, and the lifting frame 12 drives the polishing disk 14 to descend, and the motor 16 and the motor 2 13 are started, and the motor 2 13 drives the polishing disk 14 to rotate. At the same time, the motor 16 drives the gear 17 to rotate, the gear 17 drives the gear 2 10 to rotate, and the gear 2 10 drives the polishing disk 14 on the lifting frame 12 to rotate, so that the polishing disk 14 can polish the surface of the annular boiler support.

[0036] The dust removal unit 4 includes a vertical plate 403, which is fixedly connected to the upper sides of the left and right ends of the fixed plate 3, and the upper sides of the vertical plates 403 on both sides are fixedly connected with connecting blocks 404, and the lower side of the connecting block 404 is fixedly connected with a mounting block 415, and the lower side of the mounting block 415 is fixedly connected with an annular placement platform 406, and the upper side of the annular placement platform 406 is fixedly connected with a plurality of top blocks 414, and the outer side of the mounting block 415 is fixedly connected with an electric push rod 416, and the end of the electric push rod 416 close to the top block 414 is fixedly connected with a clamping block 417, and the upper side of the fixed plate 3 is rotatably connected with a rotating tube 401, and the upper end of the rotating tube 401 is fixedly connected with a connecting tube 402, and the upper side of the connecting tube 402 is fixedly connected with A fixed pipe 408 is connected, the upper end of the fixed pipe 408 is fixedly connected to a conveying plate 409, the outer side of the conveying plate 409 is fixedly connected to a plurality of branch pipes 410, the outer end of the branch pipe 410 is fixedly connected to an annular pipe 1 412, the upper side of the annular pipe 1 412 is fixedly connected to a plurality of absorber heads 1 413, the outer side of the connecting pipe 402 is fixedly connected to a connecting pipe 420, the upper end of the connecting pipe 420 is fixedly connected to an annular pipe 2 418, the upper side of the annular pipe 2 418 is fixedly connected to a plurality of absorber heads 2 419, the absorber head 1 413 is located on the inner side of the annular placement platform 406, the absorber head 2 419 is located on the outer side of the annular placement platform 406, the upper side of the fixed plate 3 is rotatably connected to a control rod 424, the control The outer side of the rod 424 and the outer side of the rotating tube 401 are fixedly connected with a gear three 430, the lower side of the fixed plate 3 is fixedly connected with a motor three 411, the output end of the motor three 411 is fixedly connected to the lower end of the control rod 424, the connecting block 404 is an L-shaped structure, the outer side of the connecting block 404 is provided with a rectangular hole 405, the top block 414 and the clamping block 417 are both arc-shaped structures, when polishing the boiler support, the boiler support is placed on the annular placement platform 406, and the multiple electric push rods 416 are controlled to drive the clamping block 417 to move, so that the clamping block 417 cooperates with the top block 414, which is convenient for clamping and limiting the boiler support and facilitating the subsequent polishing operation. During the polishing process, the motor is started. Three 411, the motor three 411 drives the control rod 424 to rotate, the control rod 424 drives the gear three 430 to rotate, because the two gears three 430 are meshed and connected, the gear three 430 drives the rotating tube 401 to rotate, the rotating tube 401 drives the connecting tube 402 to rotate, the connecting tube 402 drives the conveying plate 409 on the fixed tube 408 to rotate, under the action of the branch tube 410, the absorption head one 413 on the annular tube one 412 is controlled to rotate, and at the same time, the connecting tube 402 and the connecting tube 420 rotate, the connecting tube 420 drives the annular tube two 418 to rotate, the annular tube two 418 drives the absorption head two 419 to rotate, so that the absorption range of the absorption head two 419 and the absorption head one 413 is increased, thereby improving the dust removal effect.

[0037] The lower side of the fixed plate 3 is fixedly connected with an absorption box 431 and a containing box 437, the lower side of the rotating tube 401 is rotatably connected with a bottom tube 435, a feed pipe 436 is fixedly connected between the bottom tube 435 and the containing box 437, a delivery pipe 434 is fixedly connected between the absorption box 431 and the containing box 437, an air outlet pipe 433 is fixedly connected to the right side of the absorption box 431, a piston plate 432 is provided on the inner side of the absorption box 431, and a lifting rod 428 is fixedly connected to the upper side of the piston plate 432, and the fixed plate 3 A fixed block 421 is fixedly connected to the upper side of the fixed block 421, a slide groove 422 is provided on the upper side of the fixed block 421, a slider 423 is slidably connected to the inner side of the slide groove 422, a control plate 426 is rotatably connected to the upper side of the slider 423, a cam 425 is fixedly connected to the upper end of the control rod 424, the cam 425 is rotatably connected to the control plate 426, a bottom block 427 is fixedly connected to the lower side of the slider 423, a rectangular groove 429 is provided on the upper side of the lifting rod 428, and an inclined plate 426 is rotatably connected to the inner side of the rectangular groove 429. 40, the inclined plate 440 is rotatably connected to the bottom block 427, and the outer sides of the air outlet pipe 433 and the delivery pipe 434 are both provided with a one-way valve. When dust removal is performed, the control rod 424 rotates, the control rod 424 drives the cam 425 to rotate, the cam 425 drives the control plate 426 to move left and right repeatedly, the control plate 426 drives the slider 423 to move, the slider 423 drives the inclined plate 440 on the bottom block 427 to rotate, so that the inclined plate 440 drives the lifting rod 428 to move up and down repeatedly, and the lifting rod 428 drives the piston The plate 432 moves up and down repeatedly. When the piston plate 432 rises, under the action of the one-way valve on the conveying pipe 434, the absorption head 2 419 and the absorption head 1 413 suck the dust into the annular pipe 2 418 and the annular pipe 1 412, and enter the bottom pipe 435 through the connecting pipe 402 and the rotating pipe 401, and enter the containing box 437 through the feeding pipe 436, so that the absorption heads 2 419 and the absorption head 1 413 in multiple positions can absorb the dust and increase the dust removal effect.

[0038] Embodiment 2

[0039] On the basis of the first embodiment, a filter plate 438 is fixedly connected to the inner side of the containing box 437, and a drawer 439 is provided on the inner side of the containing box 437. Dust enters the containing box 437 and is filtered by the filter plate 438 so that the dust stays in the containing box 437. Then, the drawer 439 is pulled so that the collected dust is discharged through the drawer 439.

[0040] A boiler support polishing method comprises the following steps:

[0041] S1. Place the annular boiler support on the annular placement platform 406, control the electric push rod 416 to drive the clamping block 417 to clamp the workpiece, so as to facilitate the positioning of the boiler support.

[0042] S2, control motor 1 6 and motor 2 13 to start, motor 1 6 rotates the polishing disc 14, motor 2 13 controls the polishing disc 14 to rotate, and then controls electric push rod 1 11 to drive the polishing disc 14 to descend, so that the polishing disc 14 performs a polishing operation on the annular boiler support.

[0043] S3, start motor three 411, control the outer absorption head two 419 and the inner absorption head one 413 to rotate, and the absorption head one 413 and the absorption head two 419 absorb the dust during the polishing process to achieve the dust removal effect. When removing dust, motor three 411 drives gear three 430 to rotate, and under the action of rotating tube 401, connecting tube 402, conveying plate 409 and annular tube one 412, multiple absorption heads one 413 are controlled to rotate. At the same time, under the action of connecting tube 420, the absorption head two 419 on annular tube two 418 is controlled to rotate to increase the dust removal range. At the same time, under the action of cam 425, control plate 426, slider 423, inclined plate 440 and lifting rod 428, the piston plate 432 is controlled to move up and down repeatedly. Under the action of exhaust pipe 433, conveying pipe 434 and containing box 437, it is convenient for absorption head one 413 and absorption head two 419 to absorb dust.

[0044] 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.

[0045] 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 boiler support polishing device, comprising a bottom plate (1), characterized in that: The upper side of the bottom plate (1) is fixedly connected with a fixing rod (2) and a fixing frame (5); the upper end of the fixing rod (2) is fixedly connected with a fixing plate (3); the upper side of the fixing plate (3) is provided with a dust removal unit (4); the lower side of the fixing frame (5) is fixedly connected with an annular guide rail (8); the outer side of the annular guide rail (8) is slidably connected with a guide block (9); the lower side of the guide block (9) is fixedly connected with a gear 2 (10); the upper side of the fixing frame (5) is fixedly connected with a motor 1 (6); the output end of the motor 1 (6) is fixedly connected with a gear 1 (7); the lower side of the gear 2 (10) is fixedly connected with an electric push rod 1 (11); the lower end of the electric push rod 1 (11) is fixedly connected with a lifting frame (12); the upper side of the lifting frame (12) is fixedly connected with a motor 2 (13); the output end of the motor 2 (13) is fixedly connected with a polishing disc (14); The dust removal unit (4) comprises a vertical plate (403), wherein the vertical plate (403) is fixedly connected to the upper sides of the left and right ends of the fixed plate (3), the upper sides of the vertical plates (403) on the left and right sides are fixedly connected to connecting blocks (404), the lower sides of the connecting blocks (404) are fixedly connected to mounting blocks (415), the lower sides of the mounting blocks (415) are fixedly connected to an annular placement platform (406), the upper sides of the annular placement platform (406) are fixedly connected to a plurality of top blocks (414), the outer sides of the mounting blocks (415) are fixedly connected to an electric push rod 2 (416), one end of the electric push rod 2 (416) close to the top block (414) is fixedly connected to a clamping block (417), and the upper side of the fixed plate (3) is rotatably connected to a rotating tube (401). The upper end of the rotating tube (401) is fixedly connected to a connecting tube (402), the upper side of the connecting tube (402) is fixedly connected to a fixed tube (408), the upper end of the fixed tube (408) is fixedly connected to a conveying plate (409), the outer side of the conveying plate (409) is fixedly connected to a plurality of branch tubes (410), the outer end of the branch tube (410) is fixedly connected to an annular tube 1 (412), the upper side of the annular tube 1 (412) is fixedly connected to a plurality of absorbent heads 1 (413), the outer side of the connecting tube (402) is fixedly connected to a connecting tube (420), the upper end of the connecting tube (420) is fixedly connected to an annular tube 2 (418), and the upper side of the annular tube 2 (418) is fixedly connected to a plurality of absorbent heads 2 (419); The first absorption head (413) is located on the inner side of the annular placement platform (406), and the second absorption head (419) is located on the outer side of the annular placement platform (406).

2. A boiler support polishing device according to claim 1, characterized in that: The upper side of the fixed plate (3) is rotatably connected to a control rod (424), the outer side of the control rod (424) and the outer side of the rotating tube (401) are both fixedly connected to a gear three (430), the lower side of the fixed plate (3) is fixedly connected to a motor three (411), and the output end of the motor three (411) is fixedly connected to the lower end of the control rod (424).

3. A boiler support polishing device according to claim 2, characterized in that: An absorption box (431) and a containing box (437) are fixedly connected at the lower side of the fixed plate (3); a bottom tube (435) is rotatably connected at the lower side of the rotating tube (401); a feed tube (436) is fixedly connected between the bottom tube (435) and the containing box (437); a delivery tube (434) is fixedly connected between the absorption box (431) and the containing box (437); an air outlet pipe (433) is fixedly connected to the right side of the absorption box (431); a piston plate (432) is provided on the inner side of the absorption box (431); a lifting rod (428) is fixedly connected to the upper side of the piston plate (432); and a fixing block (436) is fixedly connected to the upper side of the fixed plate (3). 421), a slide groove (422) is provided on the upper side of the fixed block (421), a slider (423) is slidably connected to the inner side of the slide groove (422), a control plate (426) is rotatably connected to the upper side of the slider (423), a cam (425) is fixedly connected to the upper end of the control rod (424), the cam (425) is rotatably connected to the control plate (426), a bottom block (427) is fixedly connected to the lower side of the slider (423), a rectangular groove (429) is provided on the upper side of the lifting rod (428), an inclined plate (440) is rotatably connected to the inner side of the rectangular groove (429), and the inclined plate (440) is rotatably connected to the bottom block (427).

4. A boiler support polishing device according to claim 3, characterized in that: A filter plate (438) is fixedly connected to the inner side of the containing box (437), and a drawer (439) is provided on the inner side of the containing box (437).

5. A boiler support polishing device according to claim 3, characterized in that: One-way valves are provided on the outsides of the air outlet pipe (433) and the delivery pipe (434).

6. A boiler support polishing device according to claim 1, characterized in that: The top block (414) and the clamping block (417) are both arranged in an arc-shaped structure.

7. A boiler support polishing device according to claim 1, characterized in that: The connection block (404) is arranged in an L-shaped structure, and a rectangular hole (405) is provided on the outer side of the connection block (404).

8. A boiler support polishing method, according to a boiler support polishing device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, placing the annular boiler support on the annular placement platform (406), controlling the second electric push rod (416) to drive the clamping block (417) to clamp the workpiece; S2, controlling the motor 1 (6) and the motor 2 (13) to start, the motor 1 (6) rotating the polishing disc (14), the motor 2 (13) controlling the polishing disc (14) to rotate, and then controlling the electric push rod 1 (11) to drive the polishing disc (14) to descend, so that the polishing disc (14) performs a polishing operation on the annular boiler support; S3, start motor three (411), control the outer absorption head two (419) and the inner absorption head one (413) to rotate, and the absorption head one (413) and the absorption head two (419) absorb dust during the polishing process to achieve a dust removal effect.

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