CN210731916U

CN210731916U - Paper tube polishing device

Info

Publication number: CN210731916U
Application number: CN201921609834.7U
Authority: CN
Inventors: 陈少烽; 陈晓庆
Original assignee: Hangzhou Yajiabao Textile Technology Co Ltd
Current assignee: Hangzhou Yajiabao Textile Technology Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-12
Anticipated expiration: 2029-09-25

Abstract

The utility model relates to a paper tube grinding device relates to the technical field of equipment of polishing. The existing polishing device can only polish paper tubes with one diameter generally, and when the paper tubes with different diameters are polished, the polishing device needs to be replaced, so that the operation is inconvenient, and the cost is higher. The wheel of polishing in this scheme and drive wheel pivoted actuating lever can realize quick assembly disassembly, and the centre gripping subassembly that is used for centre gripping paper tube simultaneously also can be dismantled for the paper tube of the different diameters of adaptation, grinding device still are equipped with the lifting unit who is used for adjusting the actuating lever height, with the centre of a circle of the paper tube of the different diameters of adaptation. The grinding wheel of the different specifications of accessible quick assembly disassembly, the height of adjusting the actuating lever in this scheme, the centre gripping subassembly of change adaptation are in order to polish the paper tube of different diameters, reach the effect that can the multiple paper tube of adaptation on a grinding device, and the operation is very simple and convenient, and the cost is lower.

Description

Paper tube polishing device

Technical Field

The utility model belongs to the technical field of the technique of equipment of polishing and specifically relates to a paper tube grinding device is related to.

Background

The paper tube refers to the tubulose object of processing into with the paper, and most paper tubes are spiral paper tube and seamless paper tube, and paper tube processing needs through cutting, blank pressing, polishing, cut open a plurality of processes such as light, and the paper tube cuts the back, and the burr appears easily in the both ends surface of paper tube, need again through the process of polishing.

The existing polisher is generally characterized in that a plurality of cut paper tubes are sequentially placed on a conveying device, and polishing wheels are used for polishing inner walls at two ends of the paper tubes and polishing outer walls at two ends of the paper tubes.

The above prior art solutions have the following drawbacks: when paper tubes with different diameters need to be polished, polishing needs to be carried out on other polishing devices, so that the operation is very troublesome, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a paper tube grinding device, the wheel of polishing can carry out quick assembly disassembly, when the paper tube of different diameters need to polish, changes the wheel of polishing and with the different paper tubes of adaptation.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a paper tube polishing device comprises a workbench, a transmission rail arranged on the upper side of the workbench, a polishing wheel arranged on the workbench, a first driving assembly used for driving the polishing wheel to rotate and move axially, a clamping assembly arranged on the workbench, a second driving assembly used for driving the clamping assembly to lift, and a third driving assembly used for pushing a paper tube to move along the length direction of the transmission rail, wherein a driving rod is connected between the polishing wheel and the first driving assembly, and the inner wall of one end of the polishing wheel, which is far away from the transmission rail, is provided with four clamping blocks which are arranged at equal intervals around the axis of the polishing wheel; the surface of the outer peripheral wall of one end, close to the polishing wheel, of the driving rod is provided with four limiting grooves in one-to-one correspondence with the clamping blocks, each limiting groove comprises a first communicating groove, a second communicating groove and a third communicating groove, the clamping blocks are clamped in the third communicating grooves in a sliding mode, the first communicating grooves and the third communicating grooves are arranged in parallel along the axis of the driving rod, one end of each first communicating groove penetrates through the surface of one end of the driving rod, one end of each second communicating groove is communicated with one end, away from the polishing wheel, of the first communicating groove, the other end of each second communicating groove is communicated with the wall of the third communicating groove, the second communicating grooves are arranged around the axis of the driving rod, and one end, away from the paper tube, of each third communicating; the outer peripheral wall of the driving rod is provided with a limiting ring, the inner wall of the limiting ring is provided with four blocking blocks, the four blocking blocks are respectively clamped in the four third communicating grooves and are abutted against a first spring, and the first spring has a tendency that the blocking blocks are abutted against the clamping blocks; a lifting component for driving the first driving component to lift is arranged below the first driving component; the clamping assembly comprises a first mounting plate and a second mounting plate located below the first mounting plate, the lifting assembly comprises a first fixing plate, the clamping assembly further comprises a support frame fixedly connected to the upper side of the first fixing plate, a lifting screw rod is vertically arranged on the upper side of the support frame in a penetrating mode, the upper end outer peripheral wall of the lifting screw rod is in threaded connection with a nut, the nut is located on the upper side of the support frame, a second spring is arranged on the lower end outer peripheral wall of the lifting screw rod and located on the lower side of the support frame, and the first mounting plate is in threaded.

By adopting the technical scheme, when workers need to polish paper tubes with different diameters, the workers firstly slide the limiting ring along the direction far away from the polishing wheel, the blocking block extrudes the first spring, the blocking block does not block the communication part between the second communication groove and the third communication groove any more, so that the first communication groove, the second communication groove and the third communication groove are communicated with each other, the workers move the polishing wheel along the direction far away from the paper tubes, align the clamping block with the second communication groove, rotate the polishing wheel again, enable the clamping block to be positioned in the first communication groove, slide and take out the polishing wheel from the first communication groove, and then replace the polishing wheel matched with the diameter of the paper tube; the worker readjusts the lifting assembly to enable the axis of the driving rod to be aligned with the axes of the paper tubes with different diameters; the workman recycles the cooperation of lifting screw and nut and makes first mounting panel adjust to suitable height to the paper tube centre gripping of different diameters can be adapted to in the space of leaving between messenger's first mounting panel and the second mounting panel.

The utility model discloses further set up to: the grinding wheel comprises a first grinding ring used for grinding the peripheral wall of the paper tube and a second grinding ring used for grinding the peripheral wall of the paper tube, and the first grinding ring and the second grinding ring are coaxially arranged.

Through adopting above-mentioned technical scheme, the wheel of polishing when polishing the paper tube, the cooperation of first polishing ring and second polishing ring can make the wheel of polishing polish to the periphery wall and the internal perisporium of paper tube simultaneously, and efficiency of polishing is higher.

The utility model discloses further set up to: the third drive assembly comprises a drive plate and a pushing cylinder used for pushing the drive plate to move along the direction of the transmission track, the drive plate comprises a guide plate along the transmission direction of the transmission track, a connecting plate fixed between the guide plate and the pushing cylinder, an arc-shaped groove used for fixing a paper tube is formed in the upper surface of the guide plate, and a guide inclined surface is arranged at one end, far away from the connecting plate, of the guide plate.

Through adopting above-mentioned technical scheme, after the paper tube finishes polishing, promote the connecting plate by push cylinder again, the connecting plate drives the deflector and removes to transmission track direction, paper tube and direction inclined plane contact, and the paper tube makes the paper tube slide along the direction inclined plane because of the action of gravity, makes paper tube transmission speed faster, makes grinding device efficiency higher.

The utility model discloses further set up to: the upper surface of first fixed plate is opened has the dovetail that sets up along the actuating lever axis, and first drive assembly is including removing the seat, and the one end fixed connection of actuating lever removes the seat in, removes the lower fixed surface of seat and has the dovetail, and the dovetail slip joint is in the dovetail.

Through adopting above-mentioned technical scheme, when removing the seat and move along the actuating lever axis direction on first fixed plate, because in the forked tail strip card inserts the dovetail, strengthened removing the stability between seat and the first fixed plate.

The utility model discloses further set up to: and baffles are arranged on two sides of the conveying track.

Through adopting above-mentioned technical scheme, when the wheel of polishing polished the burr of paper pipe, the burr bits of being polished down are blockked in transmission track by the baffle, avoid the burr bits to drop at will, cause the pollution to workman operational environment.

The utility model discloses further set up to: the lower side of the first mounting plate is connected with a first clamping plate through bolts, the upper side of the second mounting plate is connected with a second clamping plate through bolts, one side of the first clamping plate, which is far away from the first mounting plate, is sunken upwards, one side of the second clamping plate, which is far away from the second mounting plate, is sunken downwards, and a gap is reserved between the first clamping plate and the second clamping plate.

Through adopting above-mentioned technical scheme, increased the area of contact between centre gripping subassembly and the paper tube, stability is stronger when making centre gripping subassembly centre gripping paper tube.

The utility model discloses further set up to: a graduated scale is fixed on the upper side of the workbench, and a reference line is arranged on one side, close to the graduated scale, of the first fixing plate.

Through adopting above-mentioned technical scheme, when the workman need adjust the lifting unit height, observe the scale mark that the datum line aimed at on the scale to it is more accurate to make lifting unit altitude mixture control.

The utility model discloses further set up to: the periphery wall of spacing ring is equipped with two application of force poles.

By adopting the technical scheme, when an operator slides the limiting ring, the operator holds the force application rod by two hands, so that the operation of workers is more convenient.

To sum up, the utility model discloses a beneficial technological effect does:

1. according to the scheme, the polishing wheel can be quickly detached to adapt to paper tubes with different diameters, so that the polishing device can polish a plurality of different paper tubes conveniently;

2. in the scheme, the polishing wheel comprises the first polishing ring and the second polishing ring, so that the inner wall and the outer wall of the paper tube can be polished simultaneously, and the polishing efficiency is higher;

3. in this scheme, the cooperation of scale and datum line can make the workman adjust lifting unit's height more accurate.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is an exploded view of the grinding wheel and drive rod of fig. 1.

Fig. 3 is a schematic view of the drive assembly and the lift assembly of fig. 1.

Fig. 4 is a schematic structural view of the lifting assembly of fig. 1.

Fig. 5 is a schematic structural diagram of the support frame and the second and third driving assemblies in fig. 1.

In the figure, 1, a workbench; 2. a transfer track; 21. a baffle plate; 3. grinding the wheel; 31. a clamping block; 32. a limiting ring; 33. a blocking block; 34. a force application rod; 35. a first sanding ring; 36. a second grinding ring; 4. a first drive assembly; 41. a drive rod; 42. a limiting groove; 421. a first connecting groove; 422. a second communicating groove; 423. a third communicating groove; 43. a first spring; 44. a movable seat; 441. a dovetail strip; 45. an electric cylinder; 46. a first motor; 5. a clamping assembly; 51. a lifting screw; 52. a nut; 53. a second spring; 54. a first mounting plate; 55. a first clamping plate; 56. a second clamping plate; 57. a second mounting plate; 6. a second drive assembly; 7. a third drive assembly; 71. a push cylinder; 72. a drive plate; 721. a guide plate; 722. a connecting plate; 73. a guide slope; 8. a lifting assembly; 81. a first fixing plate; 811. a dovetail groove; 82. a second fixing plate; 83. a reference line; 84. a first fixed seat; 841. a first leg; 842. a second leg; 85. a second fixed seat; 851. a third leg; 852. a fourth leg; 86. a first moving block; 87. a second moving block; 88. a bidirectional screw rod; 89. a handle; 9. a graduated scale; 10. a support frame; 101. a horizontal frame; 102. a vertical frame; 11. a paper tube; 12. an arc-shaped groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a polishing device for a paper tube 11 disclosed by the present invention comprises a worktable 1, a transmission rail 2 installed on the upside of the worktable 1, a baffle 21 fixedly connected to both sides of the transmission rail 2, a polishing wheel 3 installed on the worktable 1, a first driving assembly 4 for rotating and axially moving the polishing wheel 3, a clamping assembly 5 installed on the worktable 1, a second driving assembly 6 for driving the clamping assembly 5 to ascend and descend, and a third driving assembly 7 for pushing the paper tube 11 to move along the length direction of the transmission rail 2; the polishing wheel 3 is equipped with two, and two polishing wheels 3 set up along transmission track 2 symmetry, and polishing wheel 3 is including the first ring 35 of polishing that is used for polishing the 11 periphery walls of paper tube, the second ring 36 of polishing that is used for polishing the 11 internal perisporium of paper tube, and the coaxial setting of first ring 35 and the second ring 36 of polishing, and the second ring 36 of polishing is kept away from the one end inner wall of paper tube 11 and is fixed with four joint pieces 31 of the equidistant setting of 36 axes of polishing around the second ring 31.

First drive assembly 4 includes actuating lever 41, the one end of actuating lever 41 is connected in sanding wheel 3, four spacing grooves 42 have been seted up on actuating lever 41 near sanding wheel 3's one end periphery wall surface, four spacing grooves 42 and four joint piece 31 one-to-ones, spacing groove 42 includes first intercommunication groove 421, second intercommunication groove 422, third intercommunication groove 423, first intercommunication groove 421 and third intercommunication groove 423 follow the axis parallel arrangement of actuating lever 41, and the one end of first intercommunication groove 421 communicates in the one end surface of actuating lever 41, the one end of second intercommunication groove 422 communicates in the one end that sanding wheel 3 was kept away from to first intercommunication groove 421, the other end of second intercommunication groove 422 communicates in the cell wall of third intercommunication groove 423, and second intercommunication groove 422 sets up around the axis of actuating lever 41, the one end that paper pipe 11 was kept away from to third intercommunication groove 423 is fixed with first spring 43.

The peripheral wall of the driving rod 41 is provided with a limiting ring 32, the inner wall of the limiting ring 32 is provided with four blocking blocks 33, the four blocking blocks 33 are respectively clamped in the four third communicating grooves 423 and are abutted against the first spring 43, and the first spring 43 has a tendency that the blocking blocks 33 are abutted against the clamping blocks 31; the outer peripheral wall of the retainer ring 32 is provided with two force applying rods 34 for holding by a worker. The workman slides spacing ring 32 along the direction of keeping away from wheel 3 earlier, block piece 33 and extrude first spring 43, block piece 33 and no longer block the intercommunication department between second intercommunication groove 422 and the third intercommunication groove 423, make first intercommunication groove 421, second intercommunication groove 422, communicate each other between the third intercommunication groove 423, the workman will polish 3 along the direction removal of keeping away from paper pipe 11 again, aim at second intercommunication groove 422 with joint piece 31, rotatory wheel 3 of polishing of circumference again, make joint piece 31 be located first intercommunication groove 421, slide wheel 3 of polishing from first intercommunication groove 421 again and take out, change wheel 3 of polishing that matches with paper pipe 11 diameter again.

Referring to fig. 3, the first driving assemblies 4 are provided in two sets, the two sets of first driving assemblies 4 are symmetrically arranged along the conveying track 2, the first driving assembly 4 further includes a first motor 46 for rotating the driving rod 41, a moving seat 44 fixedly connected to the lower side of the first motor 46, and an electric cylinder 45 for driving the moving seat 44 to horizontally move, one end of a driving shaft of the first motor 46 is fixedly connected to one end of the driving rod 41 far away from the paper tube 11, one end of a piston rod of the electric cylinder 45 is connected to the moving seat 44, and two dovetail strips 441 perpendicular to the conveying track 2 are fixed to the lower side of the moving seat 44.

Referring to fig. 3 and 4, each set of first driving assemblies 4 is provided at a lower side thereof with a lifting assembly 8, the lifting assembly 8 includes a first fixing plate 81 and a second fixing plate 82 fixedly connected to an upper side of the table 1, a reference line 83 is provided at a side surface of the first fixing plate 81, and a scale 9 (see fig. 1) is fixed at the upper side of the table 1; the upper surface of the first fixing plate 81 is provided with two dovetail grooves 811, and the two dovetail grooves 811 are respectively in sliding clamping connection with the two dovetail strips 441; the lifting assembly 8 further comprises a first leg 841, a second leg 842, a third leg 851 and a fourth leg 852, wherein a first fixing seat 84 is fixed on the lower side of the first fixing plate 81, a second fixing seat 85 is fixed on the upper side of the second fixing plate 82, one end of the first leg 841 is rotatably connected to the first fixing seat 84, the other end of the first leg 841 is rotatably connected to the third leg 851, and one end of the third leg 851, which is far away from the first leg 841, is rotatably connected to the second fixing seat 85; one end of the second leg 842 is rotatably connected to the first fixing seat 84, the other end of the second leg 842 is rotatably connected to the fourth leg 852, and one end of the fourth leg 852, which is far away from the second leg 842, is rotatably connected to the second fixing seat 85; the first leg 841, the second leg 842, the third leg 851, the fourth leg 852, the first fixing seat 84 and the second fixing seat 85 are matched to form a diamond shape. A first moving block 86 is arranged at the rotary connection part of the first leg 841 and the third leg 851, and a second moving block 87 is arranged at the rotary connection part of the second leg 842 and the fourth leg 852; the lifting assembly 8 further comprises a bidirectional screw rod 88, the outer peripheral wall of the bidirectional screw rod 88 is provided with a positive thread and a negative thread which are not intersected with each other, the bidirectional screw rod 88 simultaneously penetrates through a first moving block 86 and a second moving block 87, the first moving block 86 is in threaded connection with the positive thread of the bidirectional screw rod 88, and the second moving block 87 is in threaded connection with the negative thread of the bidirectional screw rod 88; a handle 89 is fixed at one end of the bidirectional screw 88.

The workman is through rotating handle 89, handle 89 drives two-way lead screw 88 and rotates, two-way lead screw 88 drives first movable block 86 and second movable block 87 and is close to each other or keeps away from, makes the adjacent contained angle change between first landing leg 841, second landing leg 842, third landing leg 851, the fourth landing leg 852, thereby realize lifting unit 8's altitude variation, the workman can observe the datum line 83 of first fixed plate 81 simultaneously, aim at scale 9 with datum line 83, the height of regulation lifting unit 8 that can more prepare.

Referring to fig. 5, a supporting frame 10 is disposed between the two first fixing plates 81, the supporting frame 10 includes two vertical frames 102, and a horizontal frame 101 fixedly connected between the two vertical frames 102, and the vertical frame 102 is fixedly connected to the upper side of the first fixing plates 81. The lifting assembly 8 comprises a first mounting plate 54 and a lifting screw 51, the lifting screw 51 is vertically in threaded connection with the horizontal frame 101, the lifting screw 51 penetrates through the horizontal frame 101, a nut 52 is in threaded connection with the outer peripheral wall of one end, located on the upper side of the horizontal frame 101, of the lifting screw 51, a second spring 53 is arranged on the outer peripheral wall of one end, located on the lower side of the horizontal frame 101, of the lifting screw 51, and the lifting screw 51 is in threaded connection with the first mounting plate 54 on one end, located on the lower side. The worker can adjust the height of the first mounting plate 54 by the cooperation of the nut 52, the lifting screw 51 and the second spring 53.

A first clamping plate 55 is connected to the lower side of the first mounting plate 54 in a threaded manner, and one side, away from the first mounting plate 54, of the first clamping plate 55 is arranged in an upward concave manner; the clamping assembly 5 further comprises a second mounting plate 57 and a second clamping plate 56 in threaded connection with the upper side of the second mounting plate 57, the second clamping plate 56 is located below the first clamping plate 55, one side, away from the second mounting plate 57, of the second clamping plate 56 is recessed downwards, and a gap for clamping the paper tube 11 is reserved between the first clamping plate 55 and the second clamping plate 56.

The second drive assembly 6 is the lift cylinder of vertical setting, and the piston rod of lift cylinder passes transmission track 2 and fixed connection in the downside of second mounting panel 57, and second drive assembly 6 can make the vertical direction motion of second mounting panel 57, and when paper tube 11 need polish, second drive assembly 6 will be located the paper tube 11 of second grip block 56 and rise, and second grip block 56 makes paper tube 11 fixed with the cooperation of first grip block 55.

The third driving assembly 7 includes a driving plate 72, a pushing cylinder 71 disposed along the direction of the transmission track 2, the driving plate 72 includes a guide plate 721 disposed along the transmission direction of the transmission track 2, a connecting plate 722 fixed between the guide plate 721 and the pushing cylinder 71, one end of a piston rod of the pushing cylinder 71 is fixedly connected to one side of the connecting plate 722 away from the guide plate 721, the guide plate 721 is disposed in two pieces, the connecting plate 722 is fixedly connected between the two guide plates 721, an arc-shaped groove 12 for fixing the paper tube 11 is disposed on the upper side of the guide plate 721, a guiding inclined surface 73 is disposed on one side of the guide plate 721 away from the connecting plate 722, the guiding inclined surface 73 enables the polished paper tube 11 to roll faster, and the polishing efficiency is.

The implementation principle of the embodiment is as follows: when a worker needs to polish paper tubes 11 with different diameters, the worker firstly slides the limiting ring 32 in the direction away from the polishing wheel 3, the blocking block 33 extrudes the first spring 43, the blocking block 33 does not block the communication position between the second communication groove 422 and the third communication groove 423 any more, so that the first communication groove 421, the second communication groove 422 and the third communication groove 423 are communicated with each other, the worker moves the polishing wheel 3 in the direction away from the paper tubes 11, aligns the clamping block 31 with the second communication groove 422, rotates the polishing wheel 3, positions the clamping block 31 in the first communication groove 421, slides the polishing wheel 3 out of the first communication groove 421, and then replaces the polishing wheel 3 with the diameter matched with that of the paper tubes 11;

a worker rotates the handle 89 in the circumferential direction, the handle 89 drives the bidirectional lead screw 88 to rotate, the bidirectional lead screw 88 drives the first moving block 86 and the second moving block 87 to approach or separate from each other, adjacent included angles among the first supporting leg 841, the second supporting leg 842, the third supporting leg 851 and the fourth supporting leg 852 are changed, so that the height of the lifting assembly 8 is changed, the worker can observe the datum line 83 of the first fixing plate 81 at the same time, the datum line 83 is aligned with the scale 9, and the height of the lifting assembly 8 can be adjusted more conveniently to enable the axis of the driving rod 41 to be aligned with the axes of paper tubes 11 with different diameters;

the worker turns the screw cap 52 out of the lifting screw 51, adjusts the first mounting plate 54 to a proper height, and then screws the screw cap 52 into the outer peripheral wall of the lifting screw 51, so that the lifting screw 51 is fixed and does not move downwards, and the second spring 53 makes the lifting screw 51 not move upwards as much as possible; the worker then removes the first clamping plate 55 and the second clamping plate 56, and replaces the first clamping plate 55 and the second clamping plate 56 which are adapted to the diameter of the paper tube 11; the paper tube polishing device has the advantages that the paper tubes 11 with different diameters can be matched on the same polishing device, the operation is simple, and the cost is low.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a paper tube grinding device, including workstation (1), install transmission track (2) at workstation (1) upside, install grinding wheel (3) on workstation (1), be used for driving grinding wheel (3) rotatory and along its axial displacement's first drive assembly (4), install centre gripping subassembly (5) on workstation (1), be used for driving second drive assembly (6) that centre gripping subassembly (5) go up and down, be used for promoting paper tube (11) along third drive assembly (7) of transmission track (2) length direction motion, its characterized in that: a driving rod (41) is connected between the grinding wheel (3) and the first driving assembly (4), and four clamping blocks (31) which are arranged around the axis of the transmission track (2) at equal intervals are arranged on the inner wall of one end, away from the transmission track (2), of the grinding wheel (3); the surface of the peripheral wall of one end of the driving rod (41) close to the grinding wheel (3) is provided with four limiting grooves (42) which are in one-to-one correspondence with the clamping blocks (31), each limiting groove (42) comprises a first communicating groove (421), a second communicating groove (422) and a third communicating groove (423), the clamping blocks (31) are slidably clamped in the third communicating grooves (423), the first communicating grooves (421) and the third communicating grooves (423) are arranged in parallel along the axis of the driving rod (41), one end of the first communicating groove (421) penetrates through the surface of one end of the driving rod (41), one end of the second communicating groove (422) is communicated with one end of the first communicating groove (421) far away from the grinding wheel (3), the other end of the second communicating groove (422) is communicated with the groove wall of the third communicating groove (423), the second communicating groove (422) is arranged around the axis of the driving rod (41), and a first spring (43) is fixed at one end of the third communicating groove (423) far away from the paper tube (11); the outer peripheral wall of the driving rod (41) is provided with a limiting ring (32), the inner wall of the limiting ring (32) is provided with four blocking blocks (33), the four blocking blocks (33) are respectively clamped in the four third communicating grooves (423) and are abutted against the first spring (43), and the first spring (43) has the tendency that the blocking blocks (33) are abutted against the clamping blocks (31); a lifting component (8) for driving the first driving component (4) to lift is arranged below the first driving component (4); centre gripping subassembly (5) include first mounting panel (54), be located second mounting panel (57) of first mounting panel (54) below, lifting unit (8) are including first fixed plate (81), centre gripping subassembly (5) still include support frame (10) of fixed connection in first fixed plate (81) upside, lifting screw (51) are vertically worn to be equipped with by the upside of support frame (10), lifting screw (51) upper end periphery wall threaded connection has nut (52), and nut (52) are located support frame (10) upside, lifting screw (51)'s lower extreme periphery wall is equipped with second spring (53), and second spring (53) are located support frame (10) downside, first mounting panel (54) threaded connection is in lifting screw (51).

2. A paper tube grinding device as defined in claim 1, wherein: the polishing wheel (3) comprises a first polishing ring (35) used for polishing the outer peripheral wall of the paper tube (11) and a second polishing ring (36) used for polishing the inner peripheral wall of the paper tube (11), and the first polishing ring (35) and the second polishing ring (36) are coaxially arranged.

3. A paper tube grinding device as defined in claim 1, wherein: the third driving assembly (7) comprises a driving plate (72), a pushing cylinder (71) used for pushing the driving plate (72) to move along the direction of the transmission track (2), the driving plate (72) comprises a guide plate (721) along the transmission direction of the transmission track (2) and a connecting plate (722) fixed between the guide plate (721) and the pushing cylinder (71), an arc-shaped groove (12) used for fixing the paper tube (11) is formed in the upper surface of the guide plate (721), and a guide inclined surface (73) is arranged at one end, far away from the connecting plate (722), of the guide plate (721).

4. A paper tube grinding device as defined in claim 1, wherein: the upper surface of first fixed plate (81) is opened has dovetail (811) along actuating lever (41) axis setting, and first drive assembly (4) are including removing seat (44), and the one end fixed connection of actuating lever (41) removes seat (44), and the lower surface of removing seat (44) is fixed with dovetail (441), and dovetail (441) sliding joint is in dovetail (811).

5. A paper tube grinding device as defined in claim 1, wherein: and baffles (21) are arranged on two sides of the conveying track (2).

6. A paper tube grinding device as defined in claim 1, wherein: the lower side of the first mounting plate (54) is connected with a first clamping plate (55) through bolts, the upper side of the second mounting plate (57) is connected with a second clamping plate (56) through bolts, one side, away from the first mounting plate (54), of the first clamping plate (55) is upwards sunken, one side, away from the second mounting plate (57), of the second clamping plate (56) is downwards sunken, and a gap is reserved between the first clamping plate (55) and the second clamping plate (56).

7. A paper tube grinding device as defined in claim 1, wherein: a graduated scale (9) is fixed on the upper side of the workbench (1), and a reference line (83) is arranged on one side, close to the graduated scale (9), of the first fixing plate (81).

8. A paper tube grinding device as defined in claim 1, wherein: the outer peripheral wall of the limiting ring (32) is provided with two force applying rods (34).