CN115464537A

CN115464537A - Efficient polishing equipment and method for surface of marble plate

Info

Publication number: CN115464537A
Application number: CN202211138524.8A
Authority: CN
Inventors: 孙运祥; 张永; 李风光
Original assignee: Jiangsu Jinzhengyang Mining Co ltd
Current assignee: Jiangsu Jinzhengyang Mining Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2022-12-13
Anticipated expiration: 2042-09-19
Also published as: CN115464537B

Abstract

The invention discloses a marble plate surface high-efficiency polishing device and a method, which relate to the field of marble polishing and solve the problem that the traditional millstone is inconvenient to replace.

Description

Efficient polishing equipment and method for surface of marble plate

Technical Field

The invention relates to the field of marble polishing, in particular to a device and a method for efficiently polishing the surface of a marble plate.

Background

The marble is limestone with color and patterns and used as a building material, the marble comprises natural marble and artificial marble, the marble is mostly used for indoor decoration such as floor, wallboard, table decoration and the like, and the marble needs to be corrected, polished and processed before decoration;

the traditional Chinese patent publication CN216577252U is an antibacterial artificial marble plate surface polishing device, and the anti-slip ring is held, and the handle is moved to drive the movable plate to move, so that the polishing head is driven to move back and forth, and polishing operation is performed on different positions, and the problems of long time consumption, high labor cost and low operation efficiency of the traditional polishing are solved; by starting the suction fan, dust enters the guide pipe through the suction head and then enters the collecting box to be collected in the dust storage groove, so that the problem that the operation of operators is influenced due to the pollution of the surface of the device caused by the dust is solved;

however, in the prior art, it is not considered that when a marble plate is ground, polished and ground, the grinding disc needs to be replaced according to the grinding degree or time, and the grinding discs with different meshes are replaced to perform grinding and polishing operations.

Disclosure of Invention

The invention aims to provide a device and a method for efficiently polishing the surface of a marble plate with a rapidly-switched grinding disc, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the efficient polishing equipment for the surface of the marble slab comprises an installation hanging frame, wherein a displacement device capable of enabling the installation hanging frame to move up and down and back and forth is arranged at the upper end of the installation hanging frame, and a motor is fixedly installed at the bottom of the installation hanging frame; the grinding mechanism can quickly replace grinding plates in the grinding process is arranged on the periphery of the motor; the dust falling mechanism can effectively restrain dust in the grinding process and is arranged at the bottom of the grinding mechanism, and the displacement device moves the hanging bracket and a component at the bottom.

Preferably, grinding machanism include with the motor centers on the spacing ring in the motor outside, the inside radial fixation of spacing ring inlays the stop collar that a plurality of is the equidistance of circumference and distributes, just the inside of stop collar is rotated and is inlayed the axis of rotation, the axis of rotation is kept away from the one end fixed mounting in the spacing ring centre of a circle has the mill, the spacing ring with install the swivel subassembly between the installation gallows, just the butt joint subassembly is installed to the output of motor, and the mesh number of a plurality of mill is inconsistent.

Preferably, the swivel subassembly include through support fixed mounting in the arc lock joint piece of installation gallows both sides, just the inside slip lock joint of arc lock joint piece has the loose collar, the loose collar with fixed mounting has a plurality of bent lever between the spacing ring, just the bent lever distributes in both preceding terminal surfaces, the loose collar with the spacing ring is concentric, and wherein loose collar and bent lever play the supporting role to the spacing ring.

Preferably, the butt joint subassembly including fixed mounting in the spacing section of thick bamboo of motor output, just the inside slip of a spacing section of thick bamboo has inlayed the positive hexagonal post, the external surface fixation of positive hexagonal post has cup jointed the collets, just the collets with install the spring between the spacing section of thick bamboo, the bottom of positive hexagonal post with axis of rotation activity gomphosis, through the butt joint of positive hexagonal post and axis of rotation, can make the motor drive mill rotate.

Preferably, dust fall mechanism including install in the straight-bar of spacing ring rear end, just the straight-bar pass through the mounting bracket with the installation gallows is fixed connection, the front end fixed mounting of straight-bar encloses the limit piece one, just enclose the both sides of limit piece one and all install two through torsional spring and rotary column are articulated and enclose limit piece two, enclose limit piece one with enclose the size shape unanimity of limit piece two, adjacent enclose limit piece one with enclose between the limit piece two, adjacent two articulated department all installs and blocks the piece between the limit piece two, block the piece with enclose limit piece one with distribute in enclose the first of limit piece both ends enclose limit piece two is fixed connection, enclose limit piece one with enclose the equal fixed mounting of the lower extreme of limit piece two has a plurality of water curtain shower nozzle, and a plurality of the water inlet of water curtain shower nozzle is connected with a connecting pipe jointly, the back fixed mounting of installation gallows has the intercommunication valve, just the output of intercommunication valve with be fixed with the water injection pipe between the connecting pipe, the straight-bar with enclose between the limit piece two install the rolling subassembly, just the straight-bar installs an inside subassembly and touches a limit piece and four lower limit pieces and just the butt joint is played a torsional spring.

Preferably, the rolling subassembly including rotate install in the inboard rolling dish of straight-bar, the upper end fixed mounting of straight-bar has support one, the inside of rolling dish is fixed to be inlayed and is had the pivot, just the both ends of pivot all rotate inlay in the inboard of support one, logical groove has been seted up at the both ends of straight-bar, just the inside slip of logical groove has run through the haulage rope, the fixed rolling of one end of haulage rope in the inside of rolling dish, just the other end of haulage rope with distribute in the second of surrounding edge piece one side the surface of surrounding edge piece two is fixed connection, when the rolling dish was rolled up the haulage rope, can drag surrounding edge piece two under the fifty percent discount state, made it swing more and more.

Preferably, the touch assembly comprises a second gear rotatably mounted at the upper end of the straight rod through a second support, a first gear is fixedly sleeved outside the rotating shaft and movably meshed with the second gear, a rack is slidably embedded in the straight rod and movably meshed with the second gear, a shifting block is fixedly mounted at the rear end of the rack through a sliding column, the sliding column is slidably embedded with the straight rod, the rack is pulled through the shifting block, and the second gear and the first gear can rotate through the movement of the rack.

Preferably, the straight-bar with install coupling assembling between the positive hexagonal post, coupling assembling include fixed mounting in spacing of straight-bar upper end, just the inside slip of spacing has inlayed the connecting rod, the front end of connecting rod fixed inlay in the inboard of collets, and other end fixed mounting has the triangle of falling, the preceding terminal surface of the triangle of falling with the rear end face activity laminating of straight-bar, two shifting blocks can push the triangle of falling when moving in opposite directions, make its rebound, alright drive the collets rebound through the connecting rod.

Preferably, the connecting pipe and the water injection pipe are both made of flexible materials.

A method for efficiently polishing the surface of a marble slab comprises the following steps:

s1, in a grinding stage, moving the mounting hanger downwards integrally through a displacement device during grinding to enable the lower end face of one grinding disc distributed at the lowermost end to be attached to the upper end face of the marble, starting a motor, enabling the grinding disc to rotate at a high speed through a butt joint assembly, and grinding and polishing the surface of the marble;

s2, in the replacement stage, the motor is stopped during replacement, the two touch components are oppositely stirred, at the moment, the two stirring blocks are close to each other, the inverted triangle block can be pushed, the inverted triangle block drives the regular hexagonal column to move upwards through the connecting rod, the regular hexagonal column is not embedded with the rotating shaft any more, the limiting ring can be rotated through the rotating ring component, the grinding disc to be replaced is selected, and after the replacement is completed, the touch components are loosened, so that the grinding disc is quickly replaced;

s3, the dust fall stage distributes in the outside of a mill of lower extreme, and a surrounding edge piece one and four surrounding edge piece two constitute a regular pentagon under the effect of torsional spring and commentaries on classics post and surround in the outside of mill, through the inside water injection of intercommunication valve toward the connecting pipe, make the water curtain shower nozzle of surrounding edge piece one and surrounding edge piece two bottoms spray the water curtain, can carry out effectual dust fall to the dust that the in-process produced of polishing.

Compared with the prior art, the invention has the beneficial effects that:

1. in the process of grinding the surface of the marble, when the grinding disc needs to be replaced, a user only needs to touch the winding component through the touch component, the touch component can just push the connecting component in the moving process, so that the right hexagonal column moves upwards and is not embedded with the rotating shaft any more, at the moment, the user can rotate the limiting ring through the rotating ring component to replace the position of the grinding disc, the touch component is loosened after the replacement is finished, the right hexagonal column is embedded with the other rotating shaft to drive the other grinding disc to rotate, and the purpose of quickly replacing the grinding disc is achieved;

2. according to the invention, under the action of the dust falling mechanism, in the process of polishing the marble, the periphery of the grinding disc can be subjected to dust falling treatment through the surrounding edge blocks I and the surrounding edge blocks II which are arranged in a regular pentagon shape, and the water curtain spray heads at the bottoms of the surrounding edge blocks I and the surrounding edge blocks II spray water curtains, so that dust can be effectively prevented from flying.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic view of the movable ring and the stop ring of the present invention;

FIG. 5 is a schematic view of the structure of a limiting cylinder and a regular hexagonal cylinder according to the present invention;

FIG. 6 is a schematic view of the structure of the winding disc and the traction rope according to the present invention;

fig. 7 is a schematic view of a water curtain nozzle of the present invention.

In the figure: 1, mounting a hanging bracket; 2-an electric motor; 3-a polishing mechanism; 4-a swivel assembly; 5-a docking assembly; 6-a dust falling mechanism; 7-a winding component; 8-a touch component; 9-a connecting assembly; 10-arc-shaped buckling blocks; 11-a movable ring; 12-a knee lever; 13-a limit ring; 14-a stop collar; 15-a rotating shaft; 16-a grinding disc; 17-a limiting cylinder; 18-straight rods; 19-a regular hexagonal cylinder; 20-a spring; 21-a nest block; 22-a communication valve; 23-a water injection pipe; 24-a connecting rod; 25-inverted triangle block; 26-a limiting frame; 27-surrounding edge block one; 28-surrounding edge block II; 29-a stop block; 30-water curtain spray heads; 31-a connecting tube; 32-a winding disc; 33-a hauling rope; 34-a rotating shaft; 35-gear one; 36-gear two; 37-a rack; 38-dial block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, the illustrated efficient polishing equipment for the surface of a marble slab comprises a mounting hanger 1, wherein a displacement device capable of moving the mounting hanger 1 up and down and back and forth is arranged at the upper end of the mounting hanger 1, and a motor 2 is fixedly arranged at the bottom of the mounting hanger 1; the grinding mechanism 3 is arranged on the periphery of the motor 2, and can quickly replace grinding sheets in the grinding process; and a dust falling mechanism 6 which can effectively restrain dust in the grinding process, wherein the dust falling mechanism 6 is arranged at the bottom of the grinding mechanism 3, and the displacement device moves the components of the mounting hanger 1 and the bottom.

Referring to fig. 3 and 4, the polishing mechanism 3 shown in the figure includes a limiting ring 13 surrounding the motor 2 with the motor 2 as the center, a plurality of limiting sleeves 14 are radially and fixedly embedded in the limiting ring 13 and are distributed at equal intervals, a rotating shaft 15 is embedded in the limiting sleeves 14 in a rotating manner, a grinding disc 16 is fixedly installed at one end of the rotating shaft 15 far away from the center of the limiting ring 13, a rotating ring assembly 4 is installed between the limiting ring 13 and the installation hanger 1, a docking assembly 5 is installed at the output end of the motor 2, and the mesh number of the grinding discs 16 is different.

Referring to fig. 2 and 3, the illustrated transfer ring assembly 4 includes arc-shaped fastening blocks 10 fixedly mounted on two sides of the mounting hanger 1 through a bracket, and a movable ring 11 is slidably fastened inside the arc-shaped fastening blocks 10, a plurality of curved bars 12 are fixedly mounted between the movable ring 11 and a limiting ring 13, and the curved bars 12 are distributed on front end surfaces of the movable ring 11 and the limiting ring 13, and the movable ring 11 and the curved bars 12 are concentric, wherein the limiting ring 13 is supported by the movable ring 11 and the curved bars 12.

Referring to fig. 5, the docking assembly 5 shown in the figure includes a limiting cylinder 17 fixedly installed at the output end of the motor 2, a regular hexagonal cylinder 19 is slidably embedded inside the limiting cylinder 17, a sleeve block 21 is fixedly sleeved on the outer surface of the regular hexagonal cylinder 19, a spring 20 is installed between the sleeve block 21 and the limiting cylinder 17, the bottom of the regular hexagonal cylinder 19 is movably embedded with the rotating shaft 15, and the motor 2 can drive the grinding disc 16 to rotate through the docking of the regular hexagonal cylinder 19 and the rotating shaft 15.

Referring to fig. 5 and 6, in the drawings, a connecting assembly 9 is installed between a straight rod 18 and a regular hexagonal column 19, the connecting assembly 9 includes a limiting frame 26 fixedly installed at the upper end of the straight rod 18, a connecting rod 24 is slidably embedded in the limiting frame 26, the front end of the connecting rod 24 is fixedly embedded in the inner side of a sleeve block 21, an inverted triangle block 25 is fixedly installed at the other end of the connecting rod, the front end face of the inverted triangle block 25 is movably attached to the rear end face of the straight rod 18, and when two shifting blocks 38 move towards each other, the inverted triangle block 25 can be pushed and pushed to move upwards, so that the sleeve block 21 can be driven to move upwards through the connecting rod 24.

s1, in a grinding stage, the mounting hanger 1 is integrally moved downwards through a displacement device during grinding, so that the lower end face of one grinding disc 16 distributed at the lowermost end is attached to the upper end face of the marble, after the motor 2 is started, the grinding disc 16 is rotated at a high speed through the butt joint component 5 by the motor 2, and the surface of the marble is ground and polished;

s2, in the replacement stage, the motor 2 is stopped during replacement, the two touch components 8 are shifted in opposite directions, at the moment, the two shift blocks 38 are close to each other, the inverted triangle block 25 can be pushed, the inverted triangle block 25 drives the regular hexagon column 19 to move upwards through the connecting rod 24, the regular hexagon column 19 is not embedded with the rotating shaft 15 any more, the limiting ring 13 can be rotated through the rotating ring component 4, the grinding disc 16 needing to be replaced is selected, and after the replacement is finished, the touch components 8 are loosened, so that the grinding disc 16 is quickly replaced;

s3, the dust fall stage, distribute in the outside of a mill 16 of lowermost end, a surrounding edge piece 27 and four surrounding edge pieces two 28 constitute a regular pentagon under the effect of torsional spring and commentaries on classics post and surround the outside at mill 16, through the inside water injection of intercommunication valve 22 toward connecting pipe 31, make surrounding edge piece 27 and the water curtain shower nozzle 30 injection water curtain of surrounding edge piece two 28 bottoms, can carry out effectual dust fall to the dust that the in-process produced of polishing.

The working principle of rapidly replacing the grinding disc 16 in the process of grinding the marble surface is as follows: when the grinding discs 16 with other meshes need to be replaced in the process of grinding the marble surface, a user slightly moves the whole mounting hanger 1 upwards through a displacement device and stops the motor 2, at the moment, the user shifts the touch component 8, the touch component 8 can push the inverted triangle block 25 in the moving process, the inverted triangle block 25 drives the connecting rod 24 to move upwards, the connecting rod 24 moves upwards to enable the sleeve block 21 and the right hexagonal column 19 to move upwards, the right hexagonal column 19 is separated from the rotating shaft 15 at the bottom, at the moment, the user can rotate the movable ring 11, the movable ring 11 enables the limiting ring 13 to rotate through the bent rod 12, the grinding disc 16 at the bottom is switched, after the touch component 8 is switched to the proper grinding disc 16, at the moment, the right hexagonal column 19 resets to move downwards and is embedded into the other rotating shaft 15, at the moment, the driving of the motor 2 can drive the grinding disc 16 to rotate at a high speed through the embedding of the right hexagonal column 19 and the rotating shaft 15, and the quick replacement of the grinding disc 16 is realized.

Example 2

Referring to fig. 5 to 7, in this embodiment, as further described in embodiment 1, the dust settling mechanism 6 includes a straight rod 18 installed at the rear end of the limiting ring 13, the straight rod 18 is fixedly connected to the installation hanger 1 through an installation frame, a first surrounding block 27 is fixedly installed at the front end of the straight rod 18, two second surrounding blocks 28 are installed at both side ends of the first surrounding block 27 through a torsion spring and a rotation column in a hinged manner, the first surrounding block 27 and the second surrounding block 28 are identical in size and shape, a plurality of water curtain nozzles 30 are fixedly installed between the first surrounding block 27 and the second surrounding block 28 and between the two adjacent second surrounding blocks 28, a water inlet of each of the plurality of water curtain nozzles 30 is commonly connected to a connection pipe 31, a valve 22 is fixedly installed at the back of the installation hanger 1, a connection pipe 31 is fixedly connected to an output end of the communication valve 22, a water injection component is installed between the first surrounding block 27 and the second surrounding block 28, and a contact component of the straight rod 18 is installed between the two surrounding blocks 28, and the straight rod 18 and the surrounding block 27, and the straight rod 18 are connected to the straight rod 18, and the surrounding block 27.

Referring to fig. 6, in the figure, the winding assembly 7 includes a winding disc 32 rotatably mounted on the inner side of the straight rod 18, a first support is fixedly mounted at the upper end of the straight rod 18, a rotating shaft 34 is fixedly embedded inside the winding disc 32, both ends of the rotating shaft 34 are rotatably embedded on the inner side of the first support, through grooves are formed at both ends of the straight rod 18, a traction rope 33 penetrates through the through grooves in a sliding manner, one end of the traction rope 33 is fixedly wound inside the winding disc 32, the other end of the traction rope 33 is fixedly connected with the outer surface of a second surrounding block 28 distributed at the side end 27 of the first surrounding block, and when the winding disc 32 winds the traction rope 33, the second surrounding block 28 in the folded state can be pulled and gradually straightened.

Referring to fig. 6, in the drawing, the touch assembly 8 includes a second gear 36 rotatably mounted on the upper end of the straight rod 18 through a second bracket, a first gear 35 is fixedly sleeved outside the rotating shaft 34, the first gear 35 is movably engaged with the second gear 36, a rack 37 is slidably embedded inside the straight rod 18, the rack 37 is movably engaged with the second gear 36, a shifting block 38 is fixedly mounted at the rear end of the rack 37 through a sliding column, the sliding column is slidably engaged with the straight rod 18, the rack 37 is pulled through the shifting block 38, and the movement of the rack 37 can rotate the second gear 36 and the first gear 35.

Referring to fig. 7, the connection pipe 31 and the water injection pipe 23 are made of flexible materials, and the connection pipe 31 made of flexible materials does not affect the bending and extension of the first surrounding edge block 27 and the second surrounding edge block 28.

But the theory of operation of dust fall: during the process of grinding and polishing the surface of the marble, a user can connect the input end of the communication valve 22 with the water pipe, inject water into the connecting pipe 31, and finally spray the water through the plurality of water curtain spray heads 30, when the water curtain spray heads 30 at the bottoms of the first surrounding edge block 27 and the second surrounding edge block 28 which are arranged in a regular pentagon spray the water curtain, the water curtain is just sprayed around the grinding disc 16 in work, and dust generated when the grinding disc 16 grinds the marble can be effectively inhibited;

when the grinding disc 16 is switched, the two symmetrically-distributed shifting blocks 38 can be shifted to enable the two shifting blocks 38 to move oppositely, in the moving process, the rack 37 can be driven to be meshed with the second gear 36, the second gear 36 can rotate through being meshed with the first gear 35, the winding disc 32 can rotate to wind the traction rope 33, the second surrounding edge block 28 can be gradually straightened through pulling the traction rope 33 and attached to the straight rod 18, and at the moment, the grinding disc 16 outside the limiting ring 13 can not be obstructed.

Example 3

Referring to fig. 5 to 7, in the embodiment, as further described with respect to other embodiments, the dust falling mechanism 6 shown in the figure includes a straight rod 18 installed at the rear end of the limiting ring 13, the straight rod 18 is fixedly connected to the installation hanger 1 through an installation frame, a first surrounding block 27 is fixedly installed at the front end of the straight rod 18, two second surrounding blocks 28 are installed at both side ends of the first surrounding block 27 through a torsion spring and a rotation column in a hinged manner, the first surrounding block 27 and the second surrounding block 28 are identical in size and shape, a plurality of water curtain nozzles 30 are fixedly installed between the first surrounding block 27 and the second surrounding block 28 and between the two adjacent second surrounding blocks 28, a water inlet of each of the plurality of water curtain nozzles 30 is commonly connected to a connecting pipe 31, a valve 22 is fixedly installed at the back of the installation hanger 1, an output end of the communicating valve 22 is fixedly connected to an output end of the water injection valve 22, a connecting pipe 31 is fixedly connected to the water injection module 23, and a contact component of the straight rod 18 is installed between the first surrounding block 27 and the second surrounding block 28, and the straight rod 18 are connected to the straight rod, and the straight rod 18.

In this embodiment: the user can pour into the lapping liquid into the inside of intercommunication valve 22, and the lapping liquid can not only play the effect of dust fall when spraying, can also improve the effect of mill 16 to marble surface burnishing and polishing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient polishing equipment in marble panel surface, includes installation gallows (1), the upper end of installation gallows (1) is equipped with can make the displacement device of back-and-forth movement about installation gallows (1), its characterized in that: the bottom of the mounting hanger (1) is fixedly provided with a motor (2);

the grinding mechanism (3) can quickly replace grinding sheets in the grinding process is arranged on the periphery of the motor (2);

and the dust falling mechanism (6) can effectively restrain dust in the grinding process, and the dust falling mechanism (6) is arranged at the bottom of the grinding mechanism (3).

2. The marble slab surface high-efficiency polishing device of claim 1, wherein: grinding machanism (3) include with motor (2) center around spacing ring (13) in the motor (2) outside, the inside radial fixed stop collar (14) that have a plurality of to be circumference equidistance and distribute that have inlayed of spacing ring (13), just the inside rotation of stop collar (14) has inlayed axis of rotation (15), axis of rotation (15) are kept away from the one end fixed mounting in the spacing ring (13) centre of a circle has mill (16), spacing ring (13) with install swivel subassembly (4) between installation gallows (1), just butt joint subassembly (5) are installed to the output of motor (2).

3. The marble slab surface high-efficiency polishing device according to claim 2, characterized in that: swivel subassembly (4) include through support fixed mounting in the arc lock joint block (10) of installation gallows (1) both sides, just the inside slip lock joint of arc lock joint block (10) has activity ring (11), activity ring (11) with fixed mounting has a plurality of curved bar (12) between spacing ring (13), just curved bar (12) distribute in terminal surface before both, activity ring (11) with spacing ring (13) are concentric.

4. The marble slab surface high-efficiency polishing device according to claim 2, characterized in that: butt joint subassembly (5) including fixed mounting in spacing section of thick bamboo (17) of motor (2) output, just the inside slip of spacing section of thick bamboo (17) has inlayed positive hexagonal post (19), the fixed cover in surface of positive hexagonal post (19) has connect bushing block (21), just bushing block (21) with install spring (20) between spacing section of thick bamboo (17), the bottom of positive hexagonal post (19) with axis of rotation (15) activity gomphosis.

5. The marble slab surface high-efficiency polishing device according to claim 2, characterized in that: the dust fall mechanism (6) comprises a straight rod (18) installed at the rear end of the limiting ring (13), the straight rod (18) is fixedly connected with the installation hanger (1) through a mounting frame, a first edge surrounding block (27) is fixedly installed at the front end of the straight rod (18), two edge surrounding blocks (28) are installed at two side ends of the first edge surrounding block (27) through a torsion spring and a rotary column in a hinged mode, a first edge surrounding block (27) and a second edge surrounding block (28) are identical in size and shape, the first edge surrounding block (27) and the second edge surrounding block (28) are adjacent to each other, a blocking block (29) is installed at a hinged position between the two edge surrounding blocks (28), the blocking block (29) and the first edge surrounding block (27) and the second edge surrounding block (28) distributed at two ends of the first edge surrounding block (27) are fixedly connected, a plurality of water curtain connecting pipes (30) are fixedly installed between the first edge surrounding block (27) and the second edge surrounding block (28), a plurality of water curtain connecting pipes (30) are connected with a water curtain connecting pipe (31), and a water curtain connecting pipe (31) is installed between the straight rod (18) and the water curtain connecting pipe (7), and a touch component (8) is arranged in the straight rod (18).

6. The marble slab surface high-efficiency polishing device according to claim 5, wherein: rolling subassembly (7) including rotate install in the inboard rolling dish (32) of straight-bar (18), the upper end fixed mounting of straight-bar (18) has support one, the inside fixed pivot (34) that has inlayed of rolling dish (32), just the both ends of pivot (34) all rotate inlay in the inboard of support one, logical groove has been seted up at the both ends of straight-bar (18), just the inside slip of logical groove has run through haulage rope (33), the one end of haulage rope (33) is fixed to be rolled up in the inside of rolling dish (32), just the other end of haulage rope (33) with distribute in the second of enclosing edge piece one (27) side the surface of enclosing edge piece two (28) is fixed connection.

7. The marble slab surface high-efficiency polishing device according to claim 6, wherein: the touch component (8) comprises a second gear (36) rotatably mounted at the upper end of the straight rod (18) through a second support, a first gear (35) is fixedly sleeved outside the rotating shaft (34), the first gear (35) is movably meshed with the second gear (36), a rack (37) is embedded in the straight rod (18) in a sliding mode, the rack (37) is movably meshed with the second gear (36), a shifting block (38) is fixedly mounted at the rear end of the rack (37) through a sliding column, and the sliding column is embedded with the straight rod (18) in a sliding mode.

8. The marble slab surface high-efficiency polishing device according to claim 4, wherein: straight-bar (18) with install coupling assembling (9) between hexagonal post (19), coupling assembling (9) including fixed mounting in spacing (26) of straight-bar (18) upper end, just connecting rod (24) have been inlayed in the inside slip of spacing (26), the front end of connecting rod (24) fixed inlay in the inboard of cover block (21), and other end fixed mounting have three hornblocks (25) of falling, the preceding terminal surface of three hornblocks (25) of falling with the rear end face activity laminating of straight-bar (18).

9. The marble slab surface high-efficiency polishing device of claim 5, wherein: the connecting pipe (31) and the water injection pipe (23) are made of flexible materials.

10. A method for efficiently polishing the surface of a marble slab is characterized by comprising the following steps: the method comprises the following steps:

s1, in a grinding stage, moving the mounting hanger (1) downwards integrally through a displacement device during grinding to enable the lower end face of one grinding disc (16) distributed at the lowest end to be attached to the upper end face of the marble, starting a motor (2), enabling the grinding disc (16) to rotate at a high speed through a butt joint component (5) by the motor (2), and grinding and polishing the surface of the marble;

s2, in a replacing stage, stopping the motor (2) during replacement, and poking the two touch components (8) in opposite directions, wherein at the moment, the two poking blocks (38) can push the inverted triangle block (25) in the approaching process, so that the inverted triangle block (25) drives the regular hexagon column (19) to move upwards through the connecting rod (24), the regular hexagon column (19) is not embedded with the rotating shaft (15), the limiting ring (13) can be rotated through the rotating ring component (4), the grinding disc (16) needing to be replaced is selected, and after the replacement is completed, the touch components (8) are loosened, so that the grinding disc (16) can be replaced quickly;

s3, the dust fall stage, distribute in the outside of a mill (16) of lower extreme, a surrounding edge piece (27) and four surrounding edge pieces two (28) constitute a regular pentagon under the effect of torsional spring and rotary column and surround the outside of mill (16), through intercommunication valve (22) toward the inside water injection of connecting pipe (31), make surrounding edge piece (27) and surrounding edge piece two (28) water curtain shower nozzle (30) bottom spray the water curtain, can carry out effectual dust fall to the dust that the in-process produced of polishing, handle.