阅读说明：本技术 一种吸尘式板材打磨装置 (Dust absorption formula panel grinding device ) 是由 张叶莎 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种吸尘式板材打磨装置,包括支撑台,所述支撑台上端面固定有支撑块,所述支撑块上端面设置有运送板材的传送带,所述支撑台上端面还固定有支撑柱,所述支撑柱上端内设有贯穿所述支撑柱左右端面的下压腔,所述下压腔内设有左右两端分别贯穿所述下压腔左右端壁且位于外界空间内的移动杆,所述移动杆内设有可对板材表面进行清理的移动机构,所述移动杆右端还设有可对所述板材表面进行打磨的打磨机构,该装置可自动且快速的完成对板材表面的打磨处理,且在打磨处理的过程中吸附去除因打磨盘旋转而扬起的灰尘,在打磨处理完成后,自动清理去除遗留在板材表面的打磨遗留物,不需要再操作清理,提高工作效率。(The invention discloses a dust absorption type plate polishing device, which comprises a supporting table, wherein a supporting block is fixed on the upper end surface of the supporting table, a conveying belt for conveying plates is arranged on the upper end surface of the supporting table, a supporting column is also fixed on the upper end surface of the supporting table, a pressing cavity penetrating through the left and right end surfaces of the supporting column is arranged in the upper end of the supporting column, a moving rod with the left and right ends respectively penetrating through the left and right end walls of the pressing cavity and positioned in an external space is arranged in the pressing cavity, a moving mechanism capable of cleaning the surface of the plates is arranged in the moving rod, a polishing mechanism capable of polishing the surface of the plates is also arranged at the right end of the moving rod, the device can automatically and rapidly finish polishing treatment on the surface of the plates, dust raised due to rotation of the polishing disk is adsorbed and removed in the polishing treatment process, and polishing remnants left on the surface of the plates, the operation and cleaning are not needed, and the working efficiency is improved.)

1. The utility model provides a dust absorption formula panel grinding device, includes a supporting bench, its characterized in that: a supporting block is fixed on the upper end face of the supporting table, a conveying belt for conveying plates is arranged on the upper end face of the supporting block, a supporting column is further fixed on the upper end face of the supporting table, a pressing cavity penetrating through the left end face and the right end face of the supporting column is arranged in the upper end of the supporting column, a moving rod, the left end and the right end of which penetrate through the left end wall and the right end wall of the pressing cavity respectively and are located in an external space, a moving mechanism capable of cleaning the surfaces of the plates is arranged in the moving rod, a polishing mechanism capable of polishing the surfaces of the plates is further arranged at the right end of the moving rod, and a lifting cavity;

the lifting cavity is internally provided with a driving mechanism for driving a device to operate, the driving mechanism comprises a driving motor, the upper end of the driving motor is in power connection with a driving shaft, the right end wall of the lifting cavity is fixed with a fixed plate and a supporting plate, the left end of the fixed plate is penetrated through the upper end of the driving shaft, the upper side of the fixed plate is provided with a driving plate in key connection with the driving shaft, the upper end surface of the fixed plate is fixed with two compression springs with the upper ends in contact with the driving plate, the driving plate is internally provided with two ejection cavities with downward openings, the ejection cavities are internally provided with ejection blocks with the lower ends positioned in the lifting cavity and ejection springs for connecting the ejection blocks with the upper end walls of the ejection cavities, the upper side of the fixed plate is also provided with an annular block with a center penetrated by the driving shaft, a rope is fixed at the right end of the accommodating groove, and a lifting block is connected to the upper end of the driving shaft through threads;

the utility model discloses a polishing machine, including lifter, actuating mechanism, plate, grinding mechanism, lifter, drive, elevating block, drive, the lifter carries out the elevating system that goes up and down, the elevating block upside is equipped with and drives the carriage release lever carries out the elevating system that goes up and down, actuating mechanism during operation can drive elevating system work to drive when the carriage release lever goes up and down, drive the grinding mechanism work, work as when the carriage release lever descends to the downside, grinding mechanism and plate contact begin to polish, simultaneously actuating mechanism work is passed through elevating system's transmission drives the carriage release lever is removed about, thereby is.

2. The dust-absorbing type plate grinding device as claimed in claim 1, wherein: the moving mechanism comprises a driving disc, the upper end wall and the lower end wall of the lifting cavity are communicated with the lower pressing cavity, the lower end wall of the lifting cavity is rotatably connected with a transmission shaft, the upper end of the transmission shaft penetrates through the upper end wall of the lifting cavity and the upper end wall and the lower end wall of the rotating cavity and is positioned in the pressing cavity, a transmission gear is fixed at the lower end of the transmission shaft, a driving gear meshed with the transmission gear is fixed at the lower end of the driving shaft, a first belt pulley is fixed at the transmission shaft positioned in the rotating cavity, a rotating shaft is further rotatably connected at the upper end of the rotating cavity, a second belt pulley connected with the first belt pulley through a belt is fixed at the upper end of the rotating shaft, a lifting rod, the upper end and the lower end of which penetrate through the upper end and the lower end of the moving rod, is arranged at the right end of the moving rod, a brush is, the utility model discloses a lifting piece, including lifting chamber, carriage release lever, lifting piece, chain, carriage release lever.

3. The dust-absorbing type plate grinding device as claimed in claim 2, wherein: grinding machanism is including fixing the fixed block of terminal surface under the carriage release lever right-hand member, the axis of rotation lower extreme runs through terminal surface and key-type connection have the mill under the fixed block, be equipped with the annular chamber of lower extreme wall intercommunication external space in the fixed block, be equipped with the annular slab in the annular chamber, be equipped with the decurrent ring channel of opening in the annular slab, be equipped with two restriction pieces in the exhaust duct, the terminal surface is fixed with the lower extreme and runs through under the restriction piece end wall under the annular chamber with end wall under the annular chamber and with mill fixed connection's connecting rod, still be equipped with the lower extreme in the fixed block and run through terminal surface and upper end run through the exhaust duct of fixed block left end face, the exhaust duct upper end still is fixed with the filter screen bag, still be equipped with the aspiration pump in the.

4. The dust-absorbing type plate grinding device as claimed in claim 1, wherein: actuating mechanism still including fixed with the electro-magnet of electromagnetism chamber right side end wall, the electro-magnet left end with connect through expanding spring between the stopper right-hand member, still be equipped with the decurrent indent of opening in the backup pad, be equipped with the lower extreme in the indent down the lift intracavity and with the lower depression bar of driving-disc contact, the depression bar upper end is fixed with the upper end and runs through down indent upper end wall with electromagnetism chamber right side end wall and with stopper fixed connection's string, be equipped with the opening spacing groove right in the lift, be equipped with the opening electromagnetism chamber left in the backup pad, the electromagnetism intracavity is equipped with the left end and is located stopper in the spacing groove.

5. The dust-absorbing type plate grinding device as claimed in claim 2, wherein: elevating system is including fixing the lifter plate of lifter block upper end, still be equipped with the intercommunication in the lift chamber upper end wall the lower pressure chamber with the slip chamber in lift chamber, slip intracavity sliding connection has the sliding block, the sliding block right-hand member be fixed with the right-hand member with the slip chamber right-hand member wall connection's slip spring, the rope right-hand member runs through lift chamber right-hand member wall with slip chamber right-hand member wall and with sliding block fixed connection, the terminal surface is fixed with two lower extremes under the carriage release lever run through the slip chamber with the sliding block and with the lifter of lifter plate up end contact.

6. The dust suction type plate grinding device as claimed in claim 5, wherein: the magnetic force between the electromagnet and the limiting block is far larger than the elastic force of the telescopic spring, the elastic force of the telescopic spring is far larger than the gravity of the lower pressing rod, and the left end of the limiting block is located in the limiting groove in the initial state.

7. The dust-absorbing type plate grinding device as claimed in claim 2, wherein: in the initial state, the pressing spring is in a compressed state, and other springs in the device are in a normal stretching state.

8. The dust-absorbing type plate grinding device as claimed in claim 1, wherein: under the initial condition, the movable rod is located the top in the cavity is pushed down, just brush lower extreme can with the up end contact of panel.

9. The dust-absorbing type plate grinding device as claimed in claim 2, wherein: the diameter of the driving gear is far larger than that of the transmission gear.

Technical Field

The invention relates to the field of polishing, in particular to a dust absorption type plate polishing device.

Background

In order to ensure the smoothness of the surface of the plate, the surface of the plate is usually polished;

at the present stage, when the processing is polished to panel, polish through people manual operation and go on a bit, consuming time and wasting power, and work efficiency is low, and goes on through mechanical mode a bit, though laborsaving and efficient, but at the in-process of polishing, the raise dust scatters, influences operational environment, and polishes and accomplish the back, still needs other devices to clear up the panel surface of polishing, and work efficiency is low, influences processing on next step.

Disclosure of Invention

The invention aims to solve the technical problem of providing a dust absorption type plate polishing device, which solves the problems that manual polishing efficiency is low, flying dust is scattered in a polishing process to influence a working environment and the like, improves working efficiency and removes the flying dust generated in polishing.

The invention is realized by the following technical scheme.

The invention discloses a dust absorption type plate polishing device which comprises a supporting table, wherein a supporting block is fixed on the upper end surface of the supporting table, a conveying belt for conveying plates is arranged on the upper end surface of the supporting table, a supporting column is also fixed on the upper end surface of the supporting table, a pressing cavity penetrating through the left and right end surfaces of the supporting column is arranged in the upper end of the supporting column, a moving rod is arranged in the pressing cavity, the left and right ends of the moving rod respectively penetrate through the left and right end walls of the pressing cavity and are located in an external space, a moving mechanism capable of cleaning the surface of the plate is arranged in the moving rod, a polishing mechanism capable of polishing the surface of the plate is further arranged at the right end of the moving rod;

the lifting cavity is internally provided with a driving mechanism for driving a device to operate, the driving mechanism comprises a driving motor, the upper end of the driving motor is in power connection with a driving shaft, the right end wall of the lifting cavity is fixed with a fixed plate and a supporting plate, the left end of the fixed plate is penetrated through the upper end of the driving shaft, the upper side of the fixed plate is provided with a driving plate in key connection with the driving shaft, the upper end surface of the fixed plate is fixed with two compression springs with the upper ends in contact with the driving plate, the driving plate is internally provided with two ejection cavities with downward openings, the ejection cavities are internally provided with ejection blocks with the lower ends positioned in the lifting cavity and ejection springs for connecting the ejection blocks with the upper end walls of the ejection cavities, the upper side of the fixed plate is also provided with an annular block with a center penetrated by the driving shaft, a rope is fixed at the right end of the accommodating groove, and a lifting block is connected to the upper end of the driving shaft through threads;

the utility model discloses a polishing machine, including lifter, actuating mechanism, plate, grinding mechanism, lifter, drive, elevating block, drive, the lifter carries out the elevating system that goes up and down, the elevating block upside is equipped with and drives the carriage release lever carries out the elevating system that goes up and down, actuating mechanism during operation can drive elevating system work to drive when the carriage release lever goes up and down, drive the grinding mechanism work, work as when the carriage release lever descends to the downside, grinding mechanism and plate contact begin to polish, simultaneously actuating mechanism work is passed through elevating system's transmission drives the carriage release lever is removed about, thereby is.

Further, the moving mechanism comprises a driving disc, the upper end wall and the lower end wall of the moving mechanism are communicated with the lower pressing cavity, the lower end wall of the lifting cavity is rotatably connected with a transmission shaft, the upper end of the transmission shaft penetrates through the upper end wall of the lifting cavity and the upper end wall and the lower end wall of the rotating cavity and is positioned in the lower pressing cavity, a transmission gear is fixed at the lower end of the transmission shaft, a driving gear meshed with the transmission gear is fixed at the lower end of the driving shaft, a first belt pulley is fixed on the transmission shaft positioned in the rotating cavity, a rotating shaft is further rotatably connected with the upper end wall of the rotating cavity, a second belt pulley connected with the first belt pulley through a belt is fixed at the upper end of the rotating shaft, a lifting rod, the upper end and the lower end of the moving rod respectively penetrate through the upper end and the lower end of, the lifting intracavity be equipped with the right-hand member with lifting rod fixed connection's lifting piece, lifting chamber lower extreme wall be fixed with the upper end with the supporting spring that the lifting piece is connected, lifting chamber up end is fixed with the chain, push down the intracavity be equipped with the lower extreme with the holding down plate of carriage release lever contact, push down chamber upper end wall be fixed with two lower extremes with holding down plate fixed connection's holding down spring, the chain upper end runs through lifting chamber upper end wall support column right side end wall with push down chamber upper end wall and with holding down plate fixed connection.

Further, the grinding mechanism comprises a fixed block fixed on the lower end face of the right end of the movable rod, the lower end of the rotating shaft penetrates through the lower end face of the fixed block and is in key connection with a polishing disc, an annular cavity with the lower end wall communicated with the external space is arranged in the fixed block, an annular plate is arranged in the annular cavity, an annular groove with a downward opening is arranged in the annular plate, two limiting blocks are arranged in the air exhaust pipeline, a connecting rod is fixed on the lower end surface of the limiting block, the lower end of the connecting rod penetrates through the lower end wall of the annular groove and the lower end wall of the annular cavity and is fixedly connected with the polishing disc, an air exhaust pipeline with the lower end penetrating through the lower end surface of the fixed block and the upper end penetrating through the left end surface of the fixed block is also arranged in the fixed block, the upper end of the air exhaust pipeline is further fixed with a filter mesh bag, an air exhaust pump is further arranged in the air exhaust pipeline, and a circle of fluff is further fixed on the lower end face of the fixing block.

Further, actuating mechanism still including fixed with the electro-magnet of electromagnetism chamber right side end wall, the electro-magnet left end with connect through expanding spring between the stopper right-hand member, still be equipped with the decurrent indent of opening in the backup pad, be equipped with the lower extreme in the indent down the lift intracavity and with the lower depression bar of driving-disc contact, the depression bar upper end is fixed with the upper end and runs through the indent upper end wall down with electromagnetism chamber right side end wall and with stopper fixed connection's string, be equipped with the opening spacing groove to the right in the lift, be equipped with the opening electromagnetism chamber to the left in the backup pad, the electromagnetism intracavity is equipped with the left end and is located the stopper of spacing inslot.

Further, elevating system is including fixing the lifter plate of lifter upper end, still be equipped with the intercommunication in the lift chamber upper end wall push down the chamber with the slip chamber in lift chamber, slip intracavity sliding connection has the sliding block, the sliding block right-hand member be fixed with the right-hand member with the slip spring of slip chamber right-hand member wall connection, the rope right-hand member runs through lift chamber right-hand member wall with slip chamber right-hand member wall and with sliding block fixed connection, the terminal surface is fixed with two lower extremes under the carriage release lever and runs through the slip chamber with the sliding block and with the lifter of lifter plate up end contact.

Furthermore, the magnetic force between the electromagnet and the limiting block is far larger than the elastic force of the telescopic spring, the elastic force of the telescopic spring is far larger than the gravity of the lower pressing rod, and the left end of the limiting block is located in the limiting groove in the initial state.

Further, in the initial state, the pressing spring is in a compressed state, and the rest springs in the device are in a normal tension state.

Further, under the initial condition, the movable rod is located the top in the cavity is pushed down to the top, and the brush lower extreme can with the up end contact of panel.

Further, the diameter of the driving gear is much larger than that of the transmission gear.

The invention has the beneficial effects that: the device simple structure, the simple operation, the completion that the device can be automatic and quick is to the processing of polishing on panel surface, and adsorbs the dust of getting rid of because of polishing the dish rotation and raise at the in-process of the processing of polishing, and after the processing of polishing was accomplished, the automatic clearance is got rid of and is left over the thing of leaving over polishing on panel surface, does not need the clearance of reoperating, improves work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of A-A of FIG. 1 according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the structure at C in FIG. 1 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The dust suction type plate polishing device described with reference to fig. 1-4 includes a supporting table 10, a supporting block 11 is fixed on an upper end surface of the supporting table 10, a conveyor belt 12 for conveying plates is disposed on an upper end surface of the supporting block 11, a supporting column 32 is further fixed on an upper end surface of the supporting table 10, a pressing chamber 33 penetrating left and right end surfaces of the supporting column 32 is disposed in an upper end of the supporting column 32, a moving rod 35 having left and right ends penetrating left and right end walls of the pressing chamber 33 and located in an external space is disposed in the pressing chamber 33, a moving mechanism 71 capable of cleaning a surface of a plate is disposed in the moving rod 35, a polishing mechanism 72 capable of polishing a surface of a plate is further disposed at a right end of the moving rod 35, a lifting chamber 39 is disposed in a lower end wall of the pressing chamber 33, a driving mechanism 73 for driving the driving device to operate is disposed in the lifting chamber 39, a driving shaft 42 is connected to the upper end of the driving motor 46 in a power manner, a fixing plate 44 and a supporting plate 57 are fixed to the right end wall of the lifting cavity 39, the left end of the fixing plate 44 is penetrated through the upper end of the driving shaft 42, a driving plate 43 connected with the driving shaft 42 through a key is arranged on the upper side of the fixing plate 44, two compression springs 52 with the upper ends contacting with the driving plate 43 are fixed to the upper end face of the fixing plate 44, two ejection cavities 50 with downward openings are arranged in the driving plate 43, an ejection block 55 with the lower ends located in the lifting cavity 39 and an ejection spring 51 connecting the ejection block 55 and the upper end wall of the ejection cavity 50 are arranged in the ejection cavity 50, an annular block 53 with upward openings and a rope 25 are arranged on the upper side of the fixing plate 44, the driving shaft 42 and the compression springs 52 penetrate through the center, two accommodating grooves 54 with upward openings are arranged, drive shaft 42 upper end threaded connection has a lifter 41, lifter 41 upside is equipped with and drives lifter 35 carries out the elevating system 74 that goes up and down, actuating mechanism 73 during operation can drive elevating system 74 work, thereby drives when the movable rod 35 goes up and down, the drive grinding machanism 72 work, works as when movable rod 35 descends to the downside, grinding machanism 72 and panel contact begin to polish, simultaneously actuating mechanism 73 work passes through elevating system 74's transmission drives the movable rod 35 is moved about, thereby is convenient for polish.

Advantageously, the moving mechanism 71 includes a driving disc 43 having upper and lower end walls communicating with the lower pressing cavity 33, the lower end wall of the lifting cavity 39 is rotatably connected with a transmission shaft 28 having an upper end penetrating through the upper end wall of the lifting cavity 39 and the upper and lower end walls of the rotating cavity 34 and located in the lower pressing cavity 33, a transmission gear 47 is fixed at the lower end of the transmission shaft 28, a driving gear 45 engaged with the transmission gear 47 is fixed at the lower end of the driving shaft 42, a first belt pulley 27 is fixed at the transmission shaft 28 located in the rotating cavity 34, a rotating shaft 22 is further rotatably connected at the upper end wall of the rotating cavity 34, a second belt pulley 23 connected with the first belt pulley 27 is fixed at the upper end of the rotating shaft 22, a lifting rod 18 having upper and lower ends penetrating through the upper and lower ends of the moving rod 35 is provided at the right end of the moving rod 35, a brush 15 is, a lifting cavity 20 penetrated by the lifting rod 18 is arranged in the right end wall of the rotating cavity 34, a lifting block 21 fixedly connected with the lifting rod 18 at the right end is arranged in the lifting cavity 20, a supporting spring 19 connected with the lifting block 21 at the upper end is fixed on the lower end wall of the lifting cavity 20, a chain 29 is fixed on the upper end face of the lifting cavity 20, a lower pressing plate 30 with the lower end contacting with the moving rod 35 is arranged in the lower pressing cavity 33, two lower pressing springs 31 fixedly connected with the lower pressing plate 30 at the lower end are fixed on the upper end wall of the lower pressing cavity 33, and the upper end of the chain 29 penetrates through the upper end wall of the lifting cavity 20, the right end wall of the supporting column 32 and the upper end wall of the lower pressing cavity 33 and is fixedly connected with the lower pressing plate 30.

Advantageously, the polishing mechanism 72 includes a fixed block 17 fixed on the lower end face of the right end of the moving rod 35, the lower end of the rotating shaft 22 penetrates through the lower end face of the fixed block 17 and is connected with the polishing disc 13 in a key manner, an annular cavity 67 with a lower end wall communicated with the external space is arranged in the fixed block 17, an annular plate 65 is arranged in the annular cavity 67, an annular groove 64 with a downward opening is arranged in the annular plate 65, two limiting blocks 63 are arranged in the air exhaust pipeline 694, a connecting rod 16 with a lower end penetrating through the lower end wall of the annular groove 64 and the lower end wall of the annular cavity 67 and fixedly connected with the polishing disc 13 is fixed on the lower end face of the limiting block 63, an air exhaust pipeline 69 with a lower end penetrating through the lower end face of the fixed block 17 and an upper end penetrating through the left end face of the fixed block 17 is further arranged in the, a circle of soft hair 14 is also fixed on the lower end surface of the fixing block 17.

Beneficially, the driving mechanism 73 further includes an electromagnet 60 fixed to the right end wall of the electromagnetic cavity 61, the left end of the electromagnet 60 is connected to the right end of the limit block 48 through a telescopic spring 62, a lower pressing groove 58 with a downward opening is further provided in the supporting plate 57, a lower pressing rod 56 with a lower end located in the lifting cavity 39 and contacting with the driving disc 43 is provided in the lower pressing groove 58, a string 59 with an upper end penetrating through the upper end wall of the lower pressing groove 58 and the right end wall of the electromagnetic cavity 61 and fixedly connected with the limit block 48 is fixed to the upper end of the lower pressing rod 56, a limit groove 49 with a rightward opening is provided in the lifting block 41, an electromagnetic cavity 61 with a leftward opening is provided in the supporting plate 57, and a limit block 48 with a left end located in the limit groove 49 is provided in the electromagnetic cavity 61.

Advantageously, the lifting mechanism 74 includes a lifting plate 40 fixed on the upper end of the lifting block 41, a sliding cavity 38 communicating the pressing cavity 33 and the lifting cavity 39 is further provided in the upper end wall of the lifting cavity 39, a sliding block 37 is slidably connected in the sliding cavity 38, a sliding spring 26 connected to the right end of the sliding block 37 and the right end wall of the sliding cavity 38 is fixed to the right end of the sliding block 37, the right end of the rope 25 penetrates through the right end wall of the lifting cavity 39 and the right end wall of the sliding cavity 38 and is fixedly connected to the sliding block 37, and two lifting rods 36 having lower ends penetrating through the sliding cavity 38 and the sliding block 37 and contacting the upper end face of the lifting plate 40 are fixed to the lower end face of the moving rod 35.

Advantageously, the magnetic force between the electromagnet 60 and the stopper 48 is much larger than the elastic force of the extension spring 62, the elastic force of the extension spring 62 is much larger than the gravity of the lower pressing rod 56, and the left end of the stopper 48 is located in the stopper groove 49 in the initial state.

Advantageously, in the initial state, the compression spring 31 is in compression and the remaining springs in the device are in normal tension.

Advantageously, in the initial state, the moving rod 35 is located at the uppermost side in the depression chamber 33, and the lower end of the brush 15 may contact the upper end surface of the plate.

Advantageously, the diameter of the driving gear 45 is much greater than the diameter of the transmission gear 47.

Sequence of mechanical actions of the whole device:

1: when the conveying belt 12 moves the plate to the lower side of the polishing disc 13, the driving motor 46 works to drive the driving shaft 42 to rotate, so as to drive the driving disc 43 and the driving gear 45 to rotate, the driving gear 45 rotates to drive the transmission gear 47 and the transmission shaft 28 to rotate, so as to drive the first belt pulley 27 to rotate, the belt 24 drives the second belt pulley 23 and the rotating shaft 22 to rotate, so as to drive the polishing disc 13 to rotate, the driving shaft 42 rotates to enable the lifting block 41 to move downwards due to the limitation of the limiting block 48, so as to drive the lifting plate 40 to move downwards, the moving rod 35 moves downwards under the action of self weight, so as to enable the pressing spring 31 to be loosened, meanwhile, the lifting rod 36 moves downwards, the moving rod 35 moves downwards to pull the chain 29, so as to enable the lifting block 21, the lifting rod 18 and the brush 15 to move upwards, the supporting spring 19 is stretched, and the moving rod 35 moves downwards while driving the polishing disc 13, during the downward movement of the movable rod 35, the polishing disc 13 is already in contact with the plate, the connecting spring 66 is compressed when the movable rod 35 moves downwards to the lowest side, and the rotation of the polishing disc 13 starts to polish the plate when the polishing disc 13 is in contact with the plate;

2: when the plate descends to the lowest side, the electromagnet 60 works to attract the limiting block 48, so that the limiting block 48 is driven to leave the limiting groove 49, the telescopic spring 62 is compressed, so that the thin rope 59 becomes loose, the lower pressing rod 56 descends under the action of self weight, so that the driving disc 43 is driven to move downwards, the compression spring 52 is compressed, the driving disc 43 descends, so that when the lower end of the ejecting block 55 is in contact with the upper end face of the annular block 53, the ejecting block 55 is pressed back into the ejecting spring 51, the ejecting spring 51 is compressed, when the ejecting cavity 50 is opposite to the accommodating groove 54 due to the rotation of the driving disc 43, the ejecting spring 51 is reset to drive the ejecting block 55 to move downwards to enter the accommodating groove 54, at the moment, the rotation of the driving disc 43 drives the annular block 53 to rotate, so that the rope 25 is wound, so that the sliding block 37 is driven to move rightwards, the sliding spring 26 is compressed, the sliding block 37 moves right, thereby driving the moving rod 35 to move rightwards, and driving the fixed block 17 and the grinding disc 13 to move rightwards, so that the grinding disc 13 finishes grinding the plate in the process of moving rightwards, when the grinding disc 13 descends to the lowest side, the lower end of the soft hair 14 is contacted with the upper end surface of the plate, and the soft hair 14 can prevent fragments generated in the grinding process of the grinding disc 13 from flying apart;

3: during the process of rotating the polishing disc 13 to polish the plate, the air suction pump 68 works to suck air from the lower side space of the fixed block 17, the sucked air is conveyed into the filter mesh bag 70 to be filtered, dust removal is completed, when the moving rod 35 moves to the rightmost side, the polishing disc 13 also moves to the rightmost side, at this time, the electromagnet 60 does not work, so that the expansion spring 62 is reset to drive the limiting block 48 to move leftwards, and simultaneously the driving motor 46 works to drive the driving shaft 42 to rotate reversely, so as to drive the lifting block 41 to rotate reversely, when the limiting groove 49 is opposite to the limiting block 48, the left end of the limiting block 48 enters the limiting groove 49, at this time, the driving shaft 42 rotates to drive the lifting block 41 to move upwards, so as to drive the lifting plate 40 to move upwards, so as to drive the lifting rod 36 to move upwards, so as to drive the moving rod 35 to move upwards, so as to separate the polishing disc, the supporting spring 19 is reset to drive the lifting block 21, the lifting rod 18 and the brush 15 to descend, so that the lower end of the brush 15 is contacted with a plate, the resetting of the telescopic spring 62 tensions the string 59, so that the lower pressing rod 56 moves upwards, at the moment, the compression spring 52 is reset to drive the driving disc 43 to move upwards, so that the ejection block 55 leaves the accommodating groove 54, at the moment, the driving disc 43 does not drive the annular block 53 to rotate any more, at the moment, the sliding spring 26 is reset to drive the sliding block 37 to move leftwards, so that the moving rod 35 is driven to move leftwards, and in the process that the brush 15 moves leftwards, the cleaning of the scraps;

4: after the brush 15 moves leftwards and resets, the conveying belt 12 works to drive the plate to move, the lower end of the polishing disc 13 is opposite to the position where the upper surface of the plate is not polished, then the device works again to polish the plate until the polishing disc 13 finishes polishing the upper surface of the plate.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.