CN115676462A

CN115676462A - Winding and unwinding mechanism and coating machine

Info

Publication number: CN115676462A
Application number: CN202211414396.5A
Authority: CN
Inventors: 施伟; 杨林林; 李伟浩; 郑海岸
Original assignee: Dongguan Songshanhu Jiatuo Intelligent Equipment Co ltd
Current assignee: Dongguan Songshanhu Jiatuo Intelligent Equipment Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-02-03

Abstract

The invention discloses a winding and unwinding mechanism and a coating machine, wherein the winding and unwinding mechanism comprises a winding and unwinding device, a moving device and a cutter device; the winding and unwinding device comprises a rack, and a first winding and unwinding assembly and a second winding and unwinding assembly which are arranged on the rack; the moving device comprises a frame positioned above the winding and unwinding device, a horizontal moving driving assembly and two mounting plates which are oppositely arranged front and back, the two mounting plates are respectively connected with the frame in a sliding manner, and the horizontal moving driving assembly is used for driving the two mounting plates to move left and right relative to the frame; the cutter device is positioned above the winding and unwinding device and arranged between the two mounting plates. The invention can avoid damaging the pole piece in the coil changing process and improve the production efficiency.

Description

Winding and unwinding mechanism and coating machine

Technical Field

The invention relates to the technical field of coating machines, in particular to a winding and unwinding mechanism and a coating machine.

Background

The turret type unwinding mechanism of the conventional lithium battery manufacturing equipment such as a coating machine generally comprises a turret device, the turret device generally comprises a turret, a first unwinding assembly and a second unwinding assembly, the first unwinding assembly and the second unwinding assembly are respectively installed on two sides of the turret and symmetrically arranged, the first unwinding assembly and the second unwinding assembly are respectively used for installing a pole piece material roll and unwinding a pole piece of the pole piece material roll, and when unwinding is performed, for example, when the pole piece material roll of the first unwinding assembly is used up, a standby pole piece material roll on the second unwinding assembly needs to be started, so that a roll changing operation needs to be performed, the current roll changing operation is generally performed by rotating the turret 180 degrees to exchange the positions of the first unwinding assembly and the second unwinding assembly, so that a winding drum of the pole piece material roll on the first unwinding assembly is exchanged with the standby pole piece material roll on the second unwinding assembly and a belt is connected, the pole piece material roll changing process can drive the pole piece to move greatly, so that damage is easily caused, and the production efficiency is reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the winding and unwinding mechanism and the coating machine, which can avoid damage to pole pieces in the winding and unwinding process and improve the production efficiency.

The technical scheme adopted by the invention for solving the technical problem is as follows:

the invention provides a winding and unwinding mechanism, which comprises a winding and unwinding device, a moving device and a cutter device, wherein the winding and unwinding device comprises a winding and unwinding device body and a winding and unwinding device body; the winding and unwinding device comprises a rack, and a first winding and unwinding assembly and a second winding and unwinding assembly which are arranged on the rack; the moving device comprises a frame positioned above the winding and unwinding device, a horizontal moving driving assembly and two mounting plates which are oppositely arranged front and back, the two mounting plates are respectively connected with the frame in a sliding manner, and the horizontal moving driving assembly is used for driving the two mounting plates to move left and right relative to the frame; the cutter device is positioned above the winding and unwinding device and arranged between the two mounting plates.

The second aspect of the invention provides a coating machine, which comprises the winding and unwinding mechanism in the technical scheme.

The invention has the beneficial effects that: the invention has simple structure, small occupied space and easy installation and debugging, does not need to exchange the positions of the first coiling and uncoiling assembly and the second coiling and uncoiling assembly when in coil change, can not move greatly for uncoiled pole pieces, can avoid damaging the pole pieces, improves the production efficiency and greatly meets the use requirement.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of a winding and unwinding mechanism according to a first embodiment of the present invention;

FIG. 2 is a schematic front view of the winding and unwinding mechanism shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a winding and unwinding device and a movable roller device of the winding and unwinding mechanism shown in FIG. 1;

FIG. 4 is a schematic view of the take up and pay off device of FIG. 3 taken away from the first take up and pay off assembly;

fig. 5 is a schematic structural diagram of a moving device and a fixed roller device of the winding and unwinding mechanism shown in fig. 1;

fig. 6 is a schematic structural diagram of a cutter device of the winding and unwinding mechanism shown in fig. 1;

FIG. 7 is a schematic cross-sectional view of the cutter device shown in FIG. 6;

FIG. 8 is a schematic view of the cutter device of the winding and unwinding mechanism shown in FIG. 1 reaching a reel changing position;

fig. 9 is a schematic view of the cutting device of the winding and unwinding mechanism shown in fig. 1 returning to an initial state and after the cross roller assembly of the cutting device rotates 180 degrees in a counterclockwise direction;

fig. 10 is a schematic structural diagram of an unwinding and winding mechanism according to a second embodiment of the present invention;

fig. 11 is a front view schematically illustrating the winding and unwinding mechanism shown in fig. 10;

fig. 12 is a schematic structural diagram of a moving device, a cutting knife device and a fixed roller device of the winding and unwinding mechanism shown in fig. 10;

fig. 13 is a schematic structural diagram of a cutter device of the winding and unwinding mechanism shown in fig. 10;

FIG. 14 is a partial schematic view of the right cutter assembly of the cutter device of FIG. 13 with the second movable roller and the suction box removed;

FIG. 15 is a schematic cross-sectional view of the right cutter assembly of the cutter device of FIG. 13;

fig. 16 is a schematic view of the right cutter assembly of the cutter device of the winding and unwinding mechanism shown in fig. 10 in the roll changing position.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts are within the protection scope of the present invention based on the embodiments of the present invention. In addition, all the connection relations related in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

First embodiment

Referring to fig. 1 and fig. 2, a winding and unwinding mechanism according to a first embodiment of the present invention includes a winding and unwinding device 10, a moving device 30, a cutting device 50, a movable roller device 70, and a fixed roller device 80.

Referring to fig. 3 and 4, the winding and unwinding device 10 includes a frame, and a first winding and unwinding assembly 13a and a second winding and unwinding assembly 13b disposed on the frame. The first coiling and uncoiling component 13a and the second coiling and uncoiling component 13b are arranged in parallel left and right. The first winding and unwinding assembly 13a and the second winding and unwinding assembly 13b are respectively used for mounting a pole piece material roll and unwinding a pole piece of the pole piece material roll.

The frame includes that two are left and right parallel arrangement's stand group, and stand group is including being relative first stand 122 and the second stand 123 that sets up around, and first stand 122 and second stand 123 are used for setting up on for example the board. The first upright columns 122 and the second upright columns 123 of the two upright column groups are connected through transverse beams 124, and the number of the transverse beams 124 can be set according to actual conditions.

The first winding and unwinding assembly 13a and the second winding and unwinding assembly 13b are respectively arranged on the two stand groups. The first retractable coil assembly 13a and the second retractable coil assembly 13b have the same structure, and this embodiment mainly describes the structure of the first retractable coil assembly 13a, and the structure of the second retractable coil assembly 13b is not described again.

Specifically, the first winding and unwinding assembly 13a includes a first rotating shaft 132, a second rotating shaft 133, a first chuck 134, a second chuck 135, a rotation driving module, a first moving driving module and a second moving driving module.

First shaft 132 is disposed in the through hole at the top end of first column 122, and first and second ends of first shaft 132 protrude from outer and inner sides of first column 122, respectively (the outer side of first column 122 refers to a side of first column 122 that is far from second column 123, and the inner side of first column 122 refers to a side of first column 122 that is close to second column 123). In this embodiment, a first sliding shaft sleeve 1322 is sleeved on the outer periphery of the first rotating shaft 132, the first sliding shaft sleeve 1322 is located in the through hole of the first vertical column 122, two bearings are respectively disposed between two ends of the first sliding shaft sleeve 1322 and the inner wall of the through hole of the first vertical column 122, the two shaft sleeves are respectively sleeved on the outer periphery of the first sliding shaft sleeve 1322, the first sliding shaft sleeve 1322 can rotate relative to the first vertical column 122 through the two bearings, and the first sliding shaft sleeve 1322 can drive the first rotating shaft 132 to rotate together when rotating relative to the first vertical column 122, so that the first rotating shaft 132 can rotate relative to the first vertical column 122.

The second shaft 133 is disposed opposite to the first shaft 132 in a front-rear direction. Second shaft 133 is disposed in the through hole at the top end of second upright 123, and a first end and a second end of second shaft 133 respectively protrude from an outer side and an inner side of second upright 123 (the outer side of second upright 123 refers to a side of second upright 123 far from first upright 122, and the inner side of second upright 123 refers to a side of second upright 123 close to first upright 122). A second sliding shaft sleeve 1332 is sleeved on the outer periphery of the second rotating shaft 133, the second sliding shaft sleeve 1332 is located in the through hole of the second upright post 123, a first end of the second sliding shaft sleeve 1332 protrudes out of the outer side of the second upright post 123, and a second end of the second sliding shaft sleeve 1332 protrudes out of the inner side of the second upright post 123. A third sliding bush 1333 is fitted around the outer circumference of the second sliding bush 1332, the third sliding bush 1333 is located in the through hole of the second column 123, and the third sliding bush 1333 is fixed to the inner wall of the through hole of the second column 123. Two bearings are respectively disposed between both ends of the second shaft 133 and an inner wall of the second sliding sleeve 1332, the two bearings are respectively sleeved to the outer circumference of the second shaft 133, and the second shaft 133 can rotate relative to the second sliding sleeve 1332 by the two bearings, and since the third sliding sleeve 1333 is fixed to the inner wall of the through hole of the second column 123, the second shaft 133 can rotate relative to the second column 123.

The first chuck 134 and the second chuck 135 are disposed in front and rear opposite directions, the first chuck 134 is disposed at the second end of the first rotating shaft 132, and the second chuck 135 is disposed at the second end of the second rotating shaft 133. The rotation of the first shaft 132 rotates the first chuck 134, and the rotation of the second shaft 133 rotates the second chuck 135. A first jaw 134 and a second jaw 135 are used to mount the pole piece rolls. In practical application, the ends close to the first chuck 134 and the second chuck 135 are respectively inserted into two ends of the barrel of the pole piece material roll, so that the pole piece material roll is mounted through the first chuck 134 and the second chuck 135.

The rotation driving module is used for driving the first rotating shaft 132 to rotate relative to the first upright 122. In this embodiment, the rotation driving module includes a rotation driving unit, a first transmission unit and a second transmission unit.

The rotary drive unit is preferably a variable frequency motor 142, the variable frequency motor 142 being arranged between the first uprights 122 of the two sets of uprights. The first transmission unit includes a first sync wheel 1432, a second sync wheel 1433, and a sync belt (not shown in the drawing) sleeved between the first sync wheel 1432 and the second sync wheel 1433. The first synchronizing wheel 1432 is sleeved on the periphery of the output end of the inverter motor 142, a through hole is formed in the outer side of the first upright post 122, a connecting sleeve 14332 is arranged in the through hole, a first end of the connecting sleeve 14332 protrudes out of the outer side of the first upright post 122, a connecting shaft 14331 is arranged in the connecting sleeve 14332, a first end of the connecting shaft 14331 protrudes out of the first end of the connecting sleeve 14332, the second synchronizing wheel 1433 is located below the first rotating shaft 132 and is sleeved on the periphery of the first end of the connecting shaft 14331, and a second end of the connecting shaft 14331 protrudes out of the second end of the connecting sleeve 14332 and extends into the first upright post 122. A bearing is provided between the connecting shaft 14331 and an inner wall of the connecting sleeve 14332, by which the connecting shaft 14331 can rotate with respect to the connecting sleeve 14332. The second transmission unit includes a first sprocket 14333, a second sprocket 1323, and a chain (not shown) engaged with the first sprocket 14333 and the second sprocket 1323, respectively. The first sprocket 14333 is located below the first rotating shaft 132 and is fitted around the second end of the connecting shaft 14331. The second sprocket 1323 is fitted around the outer periphery of the first sliding sleeve 1322. In practical application, the variable frequency motor 142 can drive the first synchronizing wheel 1432 to rotate, under the action of the synchronous belt and the second synchronizing wheel 1433, the connecting shaft 14331 can be driven to rotate relative to the connecting sleeve 14332, the first chain wheel 14333 can be driven to rotate together, under the action of the chain and the second chain wheel 1323, the first sliding shaft sleeve 1322 can be driven to rotate relative to the first upright post 122 through the second chain wheel 1323, the first rotating shaft 132 can be driven to rotate relative to the first upright post 122, when the pole piece material roll is installed on the first chuck 134 and the second chuck 135, under the action of the pole piece material roll, the rotation of the first rotating shaft 132 can drive the first chuck 134, the pole piece material roll and the second chuck 135 to rotate together.

In this embodiment, the first rotating shaft 132 can slide back and forth relative to the first sliding sleeve 1322, so that the first rotating shaft 132 can move back and forth relative to the first upright 122. The first movement driving module includes two first movement driving units and a connection arm 153. The connection arm 153 is sleeved on the outer circumference of the first end of the first shaft 132 by a moving bearing 1532. The first moving driving unit is preferably an air cylinder 152, two air cylinders 152 are respectively arranged on the left side and the right side of the top end of the first upright post 122, and air cylinder shafts of the two air cylinders 152 are respectively connected with two ends of the connecting arm 153, so that in practical application, the connecting arm 153 can be driven by the two air cylinders 152 to move back and forth, and under the action of the moving bearing 1532, the first rotating shaft 132 can be driven to move back and forth relative to the first upright post 122, and further, the first chuck 134 can be driven to move back and forth. The moving bearing 1532 is configured to ensure that the connecting arm 153 does not rotate along with the first rotating shaft 132 when the first rotating shaft 132 rotates, and to move the first rotating shaft 132 along with the connecting arm 153 when the connecting arm 153 moves back and forth.

The second sliding shaft sleeve 1332 can slide back and forth relative to the third sliding shaft sleeve 1333, and under the action of the bearing between the second rotating shaft 133 and the second sliding shaft sleeve 1332, the back and forth sliding of the second sliding shaft sleeve 1332 can drive the second rotating shaft 133 to move back and forth relative to the second upright 123. The second movement driving module comprises a second movement driving unit and a screw rod assembly. The second moving drive unit includes a three-phase motor 162 and a speed reducer 163, the speed reducer 163 is disposed inside the second column 123, and the three-phase motor 162 is disposed at the top end of the speed reducer 163. The screw rod assembly comprises a polish rod 1632, a threaded rod 164, a screw rod nut 1642 and a connecting piece 165, the polish rod 1632 is positioned in the second upright post 123, the threaded rod 164 is positioned behind the second upright post 123, one end of the polish rod 1632 is connected with the output end of the speed reducer 163, and the other end of the polish rod 1632 extends out of the second upright post 123 and is connected with one end of the threaded rod 164. The feed screw nut 1642 is sleeved on the periphery of the threaded rod 164 and is in threaded fit with the threaded rod 164. The connecting piece 165 is sleeved on the periphery of the feed screw nut 1642. The bottom end of the connecting piece 165 is connected with the first end of the second sliding shaft sleeve 1332, and the top end of the connecting piece 165 is movably sleeved on the periphery of the guide rod 166. Guide rod 166 is positioned above threaded rod 164, and one end of guide rod 166 extends into second upright 123 and is fixed within second upright 123. In practical application, the three-phase motor 162 can drive the polish rod 1632 and the threaded rod 164 to rotate relative to the second upright post 123 through the speed reducer 163, the rotation of the threaded rod 164 can drive the lead screw nut 1642 to move back and forth relative to the second upright post 123, so as to drive the connecting piece 165 to move back and forth relative to the second upright post 123, further to drive the second sliding shaft sleeve 1332 to move back and forth relative to the second upright post 123, and under the action of the bearing between the second sliding shaft sleeve 1332 and the second rotating shaft 133, the second rotating shaft 133 can be driven to move back and forth relative to the second upright post 123, further to drive the second chuck 135 to move back and forth. The guide rod 166 guides the movement of the link 165.

When the pole piece rolls need to be mounted on the first chuck 134 and the second chuck 135, the first rotating shaft 132 is driven by the first moving driving module, the first chuck 134 moves forward, the second rotating shaft 133 is driven by the second moving driving module, and the second chuck 135 moves backward, so that the distance between the first chuck 134 and the second chuck 135 is greater than the length of the pole piece rolls, then one end of the barrel of the pole piece roll is inserted into one end of the first chuck 134 close to the second chuck 135, for example, the first rotating shaft 132 is driven by the first moving driving module, the first chuck 134 moves backward to the initial position, the second rotating shaft 133 is driven by the second moving driving module, the second chuck 135 moves forward to the initial position, during the backward movement of the first chuck 134 and the forward movement of the second chuck 135, one end of the second chuck 135 close to the first chuck 134 can be inserted into the other end of the barrel of the pole piece roll, so that the pole piece rolls are mounted on the first chuck 134 and the second chuck 135, and the mounting is convenient.

As shown in connection with FIG. 3, the movable roller assembly 70 is positioned between the first winding and unwinding assembly 13a and the second winding and unwinding assembly 13b. The movable roller device 70 comprises two mounting arms 72 and a movable roller 73, wherein the two mounting arms 72 are arranged oppositely in front and back and are arranged at the top ends of two transverse beams 124 of the frame, and two ends of the movable roller 73 are respectively and rotatably arranged at one side, close to each other, of the two mounting arms 72 through two bearing seats. The movable roller 73 is positioned above the first winding/unwinding module 13a and the second winding/unwinding module 13b and below the cutter device 50.

As shown in fig. 5, the moving device 30 includes a frame 32 located above the winding and unwinding device 10, a horizontal movement driving assembly, two mounting plates 353 arranged opposite to each other in a front-back direction, and a vertical movement driving assembly. The two mounting plates 353 are slidably connected to the frame 32, and the horizontal movement driving assembly is used for driving the two mounting plates 353 to move left and right relative to the frame 32.

Specifically, four supporting columns 322 are respectively disposed at four corners of the bottom end of the frame 32, and the four supporting columns 322 are disposed on, for example, a machine table. The winding and unwinding device 10 is located between the four supporting pillars 322.

The horizontal movement driving assembly includes a horizontal movement driving unit, a first timing belt unit and a second timing belt unit.

The horizontal movement driving unit includes a servo motor 332 and a reduction gear 333, the servo motor 332 is provided at the top end of the reduction gear 333, and the reduction gear 333 is provided on the left side of the top end of the frame 32. The first timing belt unit and the second timing belt unit are respectively provided at the front side and the rear side of the top end of the frame 32. The first synchronous belt unit and the second synchronous belt unit respectively comprise a driving wheel 334, a driven wheel 335 and a synchronous belt 336 sleeved on the peripheries of the driving wheel 334 and the driven wheel 335, the driving wheel 334 and the driven wheel 335 are respectively close to the left end and the right end of the frame 32, and the driving wheel 334 of the first synchronous belt unit and the driving wheel 334 of the second synchronous belt unit are respectively connected with two output ends of the speed reducer 333 through two couplers 3342. The coupling 3342 is disposed on the left side of the top end of the frame 32 through a bearing housing.

The two mounting plates 353 are respectively located in the frame 32, the top ends and the bottom ends of the two mounting plates are respectively located above and below the frame 32, the two mounting plates 353 are respectively close to the front inner wall and the rear inner wall of the frame 32, two transverse plates 354 are respectively arranged on one sides of the two mounting plates 353 away from each other, and the top ends of the two transverse plates 354 are respectively connected with the synchronous belt 336 of the first synchronous belt unit and the synchronous belt 336 of the second synchronous belt unit. The bottom ends of the two cross plates 354 are slidably connected to the front and rear sides of the top end of the frame 32, respectively.

The vertical movement driving assembly is located in the frame 32, and the vertical movement driving assembly includes two linear modules 352 oppositely arranged in a front-back direction, and the linear modules 352 are of an existing structure. The two linear modules 352 are respectively close to the front inner wall and the rear inner wall of the frame 32, the top ends and the bottom ends of the linear modules 352 are respectively located above and below the frame 32, and the two linear modules 352 are respectively arranged on the side, close to each other, of the two mounting plates 353. In practical application, the servo motor 332 can drive the driving wheel 334 of the first synchronous belt unit and the driving wheel 334 of the second synchronous belt unit to rotate through the speed reducer 333 and the two couplers 3342, and under the action of the synchronous belt 336 and the driven wheel 335 of the first synchronous belt unit and the action of the synchronous belt 336 and the driven wheel 335 of the second synchronous belt unit, the two transverse plates 354 can be driven to move left and right relative to the frame 32, and the two mounting plates 353 and the two linear modules 352 can be driven to move left and right relative to the frame 32.

Two diaphragm 354 respectively with the front side on frame 32 top, rear sliding connection, specifically be: the front side and the rear side of the top end of the frame 32 are respectively provided with two guide rails 323 extending along the length direction of the frame 32, the bottom ends of the two transverse plates 354 are respectively provided with two sliders, the two sliders are respectively matched with the two guide rails 323 in a sliding manner and can respectively slide left and right along the corresponding guide rails 323, and the two sliders and the two guide rails 323 arranged play a role in guiding in the process that the transverse plates 354 move left and right relative to the frame 32.

The fixed roller device 80 corresponds to the middle position of the frame 32. The fixed roller device 80 includes two fixed roller mounting arms 82 and a fixed roller 83. The two fixed roller mounting arms 82 are respectively arranged at the front side and the rear side of the frame 32, the fixed roller 83 is positioned above the frame 32, and two ends of the fixed roller 83 are respectively arranged at the close sides of the two fixed roller mounting arms 82 through two bearing seats.

Referring to fig. 6 and 7, the cutter device 50 is located above the winding and unwinding device 10 and is disposed between the driving sides of the two linear modules 352, i.e., the sides of the two linear modules 352 close to each other, and the two linear modules 352 are used for driving the cutter device 50 to move up and down. The left and right movement of the two linear modules 352 drives the cutter device 50 to move together.

The cutter device 50 comprises two first fixing plates 52, a press roller assembly, a left cutter assembly 54a, a right cutter assembly 54b, a second fixing plate 55 and a roller passing assembly which are oppositely arranged in a front-back manner. The left press roller 533 of the press roller assembly is used for pressing the pole piece unreeled by the first reel-up and reel-down assembly 13a to the pole piece roll on the second reel-up and reel-down assembly 13b so that the pole piece unreeled by the first reel-up and reel-down assembly 13a is bonded with the rubberizing of the pole piece roll on the second reel-up and reel-down assembly 13b, the right press roller 534 of the press roller assembly is used for pressing the pole piece unreeled by the second reel-up and reel-down assembly 13b to the pole piece roll on the first reel-up and reel-down assembly 13a so that the pole piece unreeled by the second reel-up and reel-down assembly 13b is bonded with the rubberizing of the pole piece roll on the first reel-up and reel-down assembly 13a, when the pole piece unreeled by the first reel-up and unreeling of the second reel-up and reel-down assembly 13b are bonded, the pole piece unreeled by the first reel-up and reel-down assembly 13a can be cut off by the left cutter assembly 54a, so that reel-up and unreeling of the pole piece roll-down can be realized by the second reel-up assembly 13b, and reel-down, thereby the pole piece unreeling and reel-up and unreeling can be realized by the right cutter assembly 54 b. In the process of unreeling the pole piece of the pole piece material roll, the roll diameter of the pole piece material roll can be reduced, the roller assembly can ensure that the pole piece material roll is not in contact with the left pressing roller 533 or the right pressing roller 534 of the pressing roller assembly in the unreeling process, so that the abrasion of the left pressing roller 533 or the right pressing roller 534 is reduced, and the service life of the left pressing roller 533 or the right pressing roller 534 is prolonged.

Specifically, the sides of the two first fixing plates 52 away from each other are respectively disposed at the driving sides of the two linear modules 352, so that the two first fixing plates 52 can be respectively driven to move up and down by the two linear modules 352.

The compression roller assembly comprises two compression roller mounting plates 532 which are oppositely arranged in front and back, the left compression roller 533, the right compression roller 534 and two compression roller driving units. The two pressing roller rotating shafts 535 are respectively arranged on the sides of the two first fixing plates 52 close to each other, and one ends of the two pressing roller rotating shafts 535 far away from the corresponding first fixing plates 52 are respectively rotatably arranged in the mounting holes of the two pressing roller mounting plates 532 through bearings. The left pressing roller 533 and the right pressing roller 534 are disposed between the two pressing roller mounting plates 532 and are disposed in parallel, that is, two ends of the left pressing roller 533 and two ends of the right pressing roller 534 are disposed on the side close to the two pressing roller mounting plates 532 respectively. The two pressing roller rotating shafts 535 are located between the left pressing roller 533 and the right pressing roller 534. The two platen roller driving units are preferably double-stroke cylinders 536, the two double-stroke cylinders 536 are respectively arranged on the adjacent sides of the two first fixing plates 52, the cylinder shafts of the two double-stroke cylinders 536 are respectively connected with the top ends of the two platen roller mounting plates 532, the two double-stroke cylinders 536 are respectively used for driving the two platen roller mounting plates 532 to rotate around the axes of the two platen roller rotating shafts 535, and the rotation of the two platen roller mounting plates 532 can drive the left platen roller 533 and the right platen roller 534 to rotate around the axes of the two platen roller rotating shafts 535.

The left cutter assembly 54a and the right cutter assembly 54b are arranged in bilateral symmetry. The platen assembly is located between the left cutter assembly 54a and the right cutter assembly 54 b. The left cutter assembly 54a and the right cutter assembly 54b each include a cutter rotating shaft 542, two cutter fixing seats 544, a cutter fixing plate 545, a cutter 546 and a cutter driving unit. The cutter rotating shaft 542 and the cutter driving unit are respectively disposed at the sides of the two first fixing plates 52 adjacent to each other. Specifically, one end of the cutter rotating shaft 542 is rotatably disposed in the mounting hole of the corresponding first fixing plate 52 through a bearing, so that the cutter rotating shaft 542 can rotate relative to the corresponding first fixing plate 52. The first ends of the two cutter fixing seats 544 are respectively disposed at two ends of the cutter fixing plate 545, the second end of one of the cutter fixing seats 544 is connected to one end of the cutter rotating shaft 542, which is far away from the corresponding first fixing plate 52, and the second end of the other cutter fixing seat 544 is connected to the cutter driving unit and driven by the cutter driving unit to rotate. The cutter fixing plate 545 is located between the pressing roller assembly and the two cutter fixing seats 544, the cutter 546 is disposed at a side of the cutter fixing plate 545 away from the pressing roller assembly, and a part of the cutter 546 protrudes out of a bottom end of the cutter fixing plate 545. In practical application, the rotary cylinder 543 can drive the cutting knife fixing seat 544 connected to the cylinder shaft to rotate, so as to drive the cutting knife fixing plate 545, the cutting knife 546 and the cutting knife fixing seat 544 connected to the cutting knife rotating shaft 542 to rotate together. The cutter rotating shaft 542 of the left cutter assembly 54a and the cutter driving unit of the right cutter assembly 54b are located on the same side, and the cutter driving unit of the left cutter assembly 54a and the cutter rotating shaft 542 of the right cutter assembly 54b are located on the same side.

Two second fixing plates 55 are respectively disposed at the top ends of the two first fixing plates 52 and correspond to the pressing roller assemblies. The over-roller assembly includes two over-roller rotating shafts (not shown), two over-roller mounting plates 562, a first over-roller 563, a second over-roller 564, and two over-roller driving units (not shown). The two roller-passing mounting plates 562 are oppositely arranged in the front-back direction, the first ends of the two roller-passing rotating shafts are respectively and rotatably arranged in the through holes on the sides, close to each other, of the two second fixing plates 55 through bearings, and the second ends of the two roller-passing rotating shafts are respectively arranged in the through holes on the sides, far away from each other, of the two roller-passing mounting plates 562. The first roller 563 is located below the second roller 564, the two roller rotating shafts are located between the first roller 563 and the second roller 564, the two roller driving units are disposed on the sides of the two second fixing plates 55 away from each other, the roller driving units are preferably rotating cylinders, cylinder shafts of the two rotating cylinders are respectively connected to first ends of the two roller rotating shafts, the two roller rotating shafts can be driven by the two rotating cylinders to rotate relative to the two second fixing plates 55, and the two roller rotating shafts can drive the two roller mounting plates 562, the first roller 563, and the second roller 564 to rotate relative to the two second fixing plates 55.

The bottom ends of the two first fixing plates 52 are respectively provided with two inductor mounting seats 572, the bottom ends of the two inductor mounting seats 572 are respectively provided with two optical fiber inductors 57, and the two optical fiber inductors 57 are located below the left pressing roller 533. Two fibre optic sensors 57 are used to detect the roll of pole pieces.

In this embodiment, the two first fixing plates 52 are respectively located above the first chuck 134 and the second chuck 135, and the lengths of the left pressing roller 533, the right pressing roller 534, the cutting knife 546 of the left cutting knife assembly 54a, and the cutting knife 546 of the right cutting knife assembly 54b are all greater than the length of the pole piece material roll.

The working principle of the winding and unwinding mechanism of the present invention is explained in detail below.

As shown in fig. 8, firstly, two pole piece rolls are respectively mounted on the first chuck 134 and the second chuck 135 of the first winding and unwinding assembly 13a and the first chuck 134 and the second chuck 135 of the second winding and unwinding assembly 13b, and then the first chuck 134, the second chuck 135 and the pole piece rolls are driven to rotate by the rotation driving module of the second winding and unwinding assembly 13b, so as to unwind the pole piece 100b of the pole piece roll, and the unwound pole piece 100b can sequentially pass through the first passing roller 563, the second passing roller 564 and the fixed roller 83. When the pole piece material roll on the second reel-up assembly 13b is consumed, the horizontal movement driving assembly drives the vertical movement driving assembly to move to a predetermined position leftwards, so as to drive the cutter device 50 to move to a predetermined position leftwards, then the vertical movement driving assembly drives the cutter device 50 to move downwards, when two optical fiber sensors 57 of the cutter device 50 detect the pole piece material roll 100a on the first reel-up assembly 13a, the vertical movement driving assembly stops driving the cutter device 50 to move downwards, at this time, the cutter device 50 is located at a reel change position, as shown in fig. 8, at this time, the movable roller 73 and the right pressing roller 534 contact the pole piece 100b unreeled by the second reel-up assembly 13b, then the first reel-up assembly 13a rotation driving unit drives the first pole piece chuck 134, the second pole piece material roll 135 and the cutter device 100a to rotate at an accelerated speed, until the maximum outer diameter of the pole piece 100a matches the traveling speed of the pole piece 100b unreeled by the second reel-up assembly 13b, then the right pressing roller is driven to rotate along the direction of the pole piece material roll-up and the pole piece material roll 100b is adhered to the second reel-up assembly 13b by the second reel-up cutter device through the pole piece winding assembly 13b, and the pole piece winding assembly 13b along the counterclockwise direction, and then the pole piece winding-up cutter device is adhered by the pole piece winding-up cutter device 54b, so as to the pole piece winding-up cutter device 54b, and the pole piece winding assembly 13b, and the pole piece winding assembly is adhered to the pole piece winding assembly 13b, and the pole piece winding assembly is adhered along the pole piece winding assembly. After the process is finished, the right press roller 534 is driven to return by the two press roller driving units, the cutter 546 is driven to return by the cutter driving unit of the right cutter assembly 54b, then the cutter device 50 is driven to move upwards to the initial position by the vertical movement driving assembly, then the vertical movement driving assembly is driven to move rightwards to the initial position by the horizontal movement driving assembly, so that the cutter device 50 can be driven to move rightwards to the initial position, then the first chuck 134, the second chuck 135 and the pole piece material roll 100a are driven to rotate by the rotation driving module of the first winding and unwinding assembly 13a, so as to unwind the pole piece of the pole piece material roll 100a, the unwound pole piece can sequentially pass through the first passing roller 563, the second passing roller 564 and the fixed roller 83, then the two passing roller mounting plates 562 are driven to rotate 180 degrees along the counterclockwise direction by the two passing roller driving units, at this time, the first passing roller is positioned above the second passing roller 564, and the pole piece can sequentially pass through the second passing roller 564, the first passing roller 563 and the fixed roller 83, as shown in fig. 9. A new pole piece roll is then mounted onto the first jaw 134 and the second jaw 135 of the second unwind and wind assembly 13b to await the next change.

When the pole piece material roll 100a on the first winding and unwinding assembly 13a is used up, the horizontal movement driving assembly drives the vertical movement driving assembly to move rightwards to a preset position, so as to drive the cutter device 50 to move rightwards to a preset position, then the vertical movement driving assembly drives the cutter device 50 to move downwards, when two optical fiber sensors 57 of the cutter device 50 detect a new pole piece material roll on the second winding and unwinding assembly 13b, the vertical movement driving assembly stops driving the cutter device 50 to move downwards, at the moment, the cutter device 50 is located at a roll changing position, at the moment, the movable roller 73 and the left pressing roller 533 are in contact with the pole piece unwound by the first winding and unwinding assembly 13a, and then the rotation driving unit of the second winding and unwinding assembly 13b drives the first chuck 134, the second chuck 134 and the new pole piece material roll to rotate at an accelerated speed, until the linear speed of the maximum outer diameter of the new pole piece material roll is matched with the walking speed of the pole piece unreeled by the first reeling and unreeling assembly 13a, then the left compression roller 533 is driven by the two compression roller driving units to rotate along the anticlockwise direction so as to press the pole piece unreeled by the first reeling and unreeling assembly 13a to the new pole piece material roll on the second reeling and unreeling assembly 13b through the left compression roller 533, so that the pole piece unreeled by the first reeling and unreeling assembly 13a is bonded with the rubberizing of the new pole piece material roll on the second reeling and unreeling assembly 13b, and then the cutter driving unit of the left cutter assembly 54a drives the cutter 546 to rotate along the clockwise direction so as to cut off the pole piece unreeled by the first reeling and unreeling assembly 13a through the cutter 546 of the left cutter assembly 54a, so that reel change is completed. After the process is finished, the left press roller 533 driven by the two press roller driving units returns, the cutter 546 driven by the cutter driving unit of the left cutter assembly 54a returns, the cutter device 50 is driven by the vertical movement driving assembly to move upwards to the initial position, and then the vertical movement driving assembly is driven by the horizontal movement driving assembly to move leftwards to the initial position, so that the cutter device 50 can be driven to move leftwards to the initial position, then the first chuck 134, the second chuck 135 and a new pole piece material roll are driven by the rotation driving module of the second winding and unwinding assembly 13b to rotate, so that the pole piece of the new pole piece material roll can be unwound, the unwound pole piece can sequentially pass through the second passing roller 564, the first passing roller 563 and the fixed roller 83, then the two passing roller mounting plates 562 are driven by the two passing roller driving units to rotate 180 degrees in the clockwise direction, at this time, the second passing roller 564 is located above the first passing roller 563, and the pole piece unwound by the second winding and unwinding assembly 13b can sequentially pass through the first passing roller 564, the second passing roller 564 and the fixed roller 83. A new pole piece roll is then mounted onto the first and

second jaws

134, 135 of the first pay-out and pay-off assembly 13a to await the next change.

The invention has simple structure, small occupied space and easy installation and debugging, adopts the fixed pole piece material roll to be matched with the mobile device 30 and the cutter device 50 through the arranged coiling and uncoiling device 10, the mobile device 30 and the cutter device 50, does not need to exchange the positions of the first coiling and uncoiling component 13a and the second coiling and uncoiling component 13b, compresses the pole piece of the pole piece material roll in work onto the spare pole piece material roll through the cutter device 50 to realize tape splicing, then cuts off the pole piece so as to finish coil changing, and the uncoiled pole piece can not move greatly in the process, thereby avoiding the damage of the pole piece. The size of the roll diameter of the pole piece material roll can be compatible with 300-1200 mm, the production efficiency is improved, the labor cost is reduced, and the use requirement is greatly met. The movable roller 73 is arranged to support the unreeled pole piece during the reel changing operation, so that the cutter device 50 can conveniently move.

The winding and unwinding mechanism of the invention can also be used as a mechanism for winding pole pieces, at the moment, the first winding and unwinding assembly 13a and the second winding and unwinding assembly 13b are both used for installing an empty winding drum and winding the pole pieces on the empty winding drum, the first chuck 134 and the second chuck 135 are used for installing the empty winding drum, the installation mode of the empty winding drum is the same as the installation mode of the pole piece material roll, the left press roller 533 of the press roller assembly is used for pressing the pole pieces wound by the first winding and unwinding assembly 13a to the empty winding drum on the second winding and unwinding assembly 13b so as to bond the pole pieces with the rubberizing of the empty winding drum on the second winding and unwinding assembly 13b, the right press roller 534 of the press roller assembly is used for pressing the pole piece wound by the second winding and unwinding assembly 13b to the empty winding drum on the first winding and unwinding assembly 13a so that the pole piece is bonded with the rubberizing of the empty winding drum on the first winding and unwinding assembly 13a, after the pole piece wound by the first winding and unwinding assembly 13a is bonded with the rubberizing of the empty winding drum on the second winding and unwinding assembly 13b, the pole piece wound by the first winding and unwinding assembly 13a can be cut off by the left cutter assembly 54a so as to realize reel change, and after the pole piece wound by the second winding and unwinding assembly 13b is bonded with the rubberizing of the empty winding drum on the first winding and unwinding assembly 13a, the pole piece wound by the second winding and unwinding assembly 13b can be cut off by the right cutter assembly 54b so as to realize reel change. Two fibre-optic sensors 57 are used to detect an empty reel.

The specific working principle is as follows:

firstly, two empty winding drums are respectively arranged on a first chuck 134 and a second chuck 135 of a first winding and unwinding assembly 13a and a first chuck 134 and a second chuck 135 of a second winding and unwinding assembly 13b, then the first chuck 134 and the second chuck 135 are driven to rotate by a rotation driving module of the first winding and unwinding assembly 13a so as to realize winding of pole pieces, and the wound pole pieces can pass through a fixed roller 83, a second passing roller 564 and a first passing roller 563. When the empty winding drum of the first winding and unwinding assembly 13a is fully wound with pole pieces, the horizontal movement driving assembly drives the vertical movement driving assembly to move rightwards to a preset position, so that the cutter device 50 can be driven to move rightwards to the preset position, then the vertical movement driving assembly drives the cutter device 50 to move downwards, when two optical fiber sensors 57 of the cutter device 50 detect the empty winding drum on the second winding and unwinding assembly 13b, the vertical movement driving assembly stops driving the cutter device 50 to move downwards, at the moment, the cutter device 50 is located at a winding change position, at the moment, the movable roller 73 and the left pressing roller 533 are in contact with the pole pieces wound by the first winding and unwinding assembly 13a, and then the rotation driving unit of the second winding and unwinding assembly 13b drives the first chuck 134, the second chuck 134 and the empty winding drum to rotate at an accelerated speed, until the linear velocity of the maximum outer diameter of the empty winding drum is matched with the traveling velocity of the pole piece wound by the first winding and unwinding assembly 13a, then the left compression roller 533 is driven by the two compression roller driving units to rotate along the anticlockwise direction so as to press the pole piece wound by the first winding and unwinding assembly 13a onto the empty winding drum on the second winding and unwinding assembly 13b through the left compression roller 533, so that the pole piece wound by the first winding and unwinding assembly 13a is bonded with the rubberizing of the empty winding drum on the second winding and unwinding assembly 13b, and then the cutter driving unit of the left cutter assembly 54a drives the cutter 546 to rotate along the clockwise direction so as to cut off the pole piece wound by the first winding and unwinding assembly 13a through the cutter 546 of the left cutter assembly 54a, so that the roll change is completed. After the winding is finished, the left pressure roller 533 driven by the two pressure roller driving units returns, the cutter 546 driven by the cutter driving unit of the left cutter assembly 54a returns, the cutter device 50 is driven by the vertical movement driving assembly to move upwards to the initial position, and then the vertical movement driving assembly is driven by the horizontal movement driving assembly to move leftwards to the initial position, so that the cutter device 50 can be driven to move leftwards to the initial position, then the first chuck 134, the second chuck 135 and the empty winding drum are driven by the rotation driving module of the second winding and unwinding assembly 13b to rotate, so that the pole pieces can be wound, the wound pole pieces can sequentially pass through the second pass roller 564, the first pass roller 563 and the fixed roller 83, then the two pass roller mounting plates 562 are driven by the two pass roller driving units to rotate 180 degrees in the clockwise direction, at this time, the second pass roller 564 is located above the first pass roller 563, and the wound pole pieces can sequentially pass through the first pass through roller 563, the second pass roller 564 and the fixed roller 83 by the second winding and unwinding assembly 13b. New empty reels are then mounted on the first jaw 134 and the second jaw 135 of the first unwinding assembly 13a to wait for the next winding.

When the empty winding drum on the second winding and unwinding assembly 13b is fully wound with pole pieces, the horizontal movement driving assembly drives the vertical movement driving assembly to move to a predetermined position leftwards, so as to drive the cutter device 50 to move to a predetermined position leftwards, then the vertical movement driving assembly drives the cutter device 50 to move downwards, when two optical fiber sensors 57 of the cutter device 50 detect a new empty winding drum on the first winding and unwinding assembly 13a, the vertical movement driving assembly stops driving the cutter device 50 to move downwards, at the moment, the cutter device 50 is located at a winding change position, at the moment, the movable roller 73, the right pressing roller 534 are in contact with the pole pieces wound by the second winding and unwinding assembly 13b, then the rotation driving unit of the first winding and unwinding assembly 13a drives the first chuck 134, the second chuck 134 and the new empty winding drum to rotate at an accelerated speed until the linear speed of the maximum outer diameter of the new empty winding drum is matched with the traveling speed of the pole pieces wound by the second winding and unwinding assembly 13b, then the right pressing roller 534 is driven to rotate clockwise by the right pressing roller 534 so as to press the second winding and unwinding assembly 13b is adhered to the new winding and the winding and unwinding assembly 13b, and then the winding and unwinding assembly 54 is adhered to the second winding and unwinding assembly 13b through the rotation driving unit of the right pressing roller 546. After the winding is finished, the right pressing roller 534 is driven to return by the two pressing roller driving units, the cutter 546 is driven to return by the cutter driving unit of the right cutter assembly 54b, then the cutter device 50 is driven to move upwards to the initial position by the vertical movement driving assembly, then the vertical movement driving assembly is driven to move rightwards to the initial position by the horizontal movement driving assembly, so that the cutter device 50 can be driven to move rightwards to the initial position, then the first chuck 134, the second chuck 135 and a new empty winding drum are driven to rotate by the rotation driving module of the first winding and unwinding assembly 13a, so that winding of the pole piece is realized, the wound pole piece can sequentially pass through the first passing roller 563, the second passing roller 564 and the fixed roller 83, then the two passing roller mounting plates 562 are driven to rotate 180 degrees along the counterclockwise direction by the two passing roller driving units, at the moment, the first passing roller 563 is positioned above the first passing roller 563, and the pole piece wound by the first winding and unwinding assembly 13a can sequentially pass through the second passing roller 564, the first passing roller 563 and the fixed roller 83. A new empty reel is then mounted on the first chuck 134 and the second chuck 135 of the second unwinding assembly 13b to wait for the next winding.

Second embodiment

Referring to fig. 10 and fig. 11, the same parts of the present embodiment as those of the first embodiment are not described again, except that the moving roller device 70 is not provided in the present embodiment, and the structure of the moving device 30 and the structure of the cutter device 50 are different from those of the first embodiment.

Referring to fig. 12, the moving device 30 includes a frame 32 located above the winding and unwinding device 10, a horizontal movement driving assembly, two mounting plates 353 arranged in a front-back opposite manner, a first supporting roller 382 and a second supporting roller 383, wherein the two mounting plates 353 are respectively connected with the frame 32 in a sliding manner, and the horizontal movement driving assembly is used for driving the two mounting plates 353 to move left and right relative to the frame 32. The structure of the horizontal movement driving assembly is the same as that of the first embodiment, and is not described again here.

Specifically, the two mounting plates 353 are respectively located in the frame 32, and top ends and bottom ends of the two mounting plates 353 are respectively located above and below the frame 32. The two mounting plates 353 are respectively adjacent to the front-side inner wall and the rear-side inner wall of the frame 32. The top ends of the two mounting plates 353 are respectively provided with two connecting plates 373, the bottom ends of the two connecting plates 373 are respectively connected with the front side and the rear side of the top end of the frame 32 in a sliding manner, and the top ends of the two connecting plates 373 are respectively connected with a synchronous belt 336 (not shown in fig. 12) of the first synchronous belt unit and a synchronous belt 336 (not shown in fig. 12) of the second synchronous belt unit. In practical application, the servo motor 332 can drive the driving wheel 334 of the first synchronous belt unit and the driving wheel 334 of the second synchronous belt unit to rotate through the speed reducer 333 and the two couplers 3342, and under the action of the synchronous belt 336 and the driven wheel 335 of the first synchronous belt unit and the action of the synchronous belt 336 and the driven wheel 335 of the second synchronous belt unit, the two connecting plates 373 can be driven to move left and right relative to the frame 32, and the two mounting plates 353 can be driven to move left and right relative to the frame 32.

The top of two mounting panels 353 is respectively through two connecting plates 373 and frame 32 sliding connection, specifically say, the front side on frame 32 top, the rear side is equipped with two guide rails 323 that extend along the length direction of frame 32 respectively, the bottom of two connecting plates 373 is equipped with two sliders respectively, two sliders respectively with two guide rails 323 sliding fit, thereby two sliders can slide about two guide rails 323, two sliders and two guide rails 323 that set up, the in-process that removes is controlled to frame 32 relatively at two mounting panels 353 plays the guide effect.

The top ends of the two connecting plates 373 are respectively provided with two vertical plates 374, and the two ends of the first supporting roller 382 and the two ends of the second supporting roller 383 are respectively arranged on the side, close to each other, of the two vertical plates 374 through two bearing seats. The first support roller 382 and the second support roller 383 are arranged in parallel left and right. The movement of the two connecting plates 373 can drive the two vertical plates 374, the first supporting roller 382 and the second supporting roller 383 to move left and right relative to the frame 32.

As shown in fig. 13 to 15, the cutter device 50 is located above the windup and unwinding device 50 and is disposed between the two mounting plates 353.

Specifically, the cutter device 50 includes a left cutter assembly 52a, a right cutter assembly 52b, a left cutter driving assembly 55a, and a right cutter driving assembly 55b. The left cutter assembly 52a and the right cutter assembly 52b are both arranged between the two mounting plates 353 and are arranged in bilateral symmetry. The left cutter driving assembly 55a and the right cutter driving assembly 55b are respectively arranged on the far sides of the two mounting plates 353 and are respectively used for driving the left cutter assembly 52a to rotate relative to the two mounting plates 353 and the right cutter assembly 52b to rotate relative to the two mounting plates 353. The left and right movement of the two mounting plates 353 can drive the left cutter assembly 52a, the right cutter assembly 52b, the left cutter driving assembly 55a and the right cutter driving assembly 55b to move together. The left cutter assembly 52a is used for pressing the pole piece unreeled by the first reeling and unreeling assembly 13a to the pole piece reel on the second reeling and unreeling assembly 13b so that the pole piece unreeled by the first reeling and unreeling assembly 13a is bonded with the adhesive of the pole piece reel on the second reeling and unreeling assembly 13b and the pole piece unreeled by the first reeling and unreeling assembly 13a is cut off after being bonded, thereby realizing reel change. The right cutter assembly 52b is configured to press the pole piece unreeled by the second reeling assembly 13b onto the pole piece reel on the first reeling assembly 13a, so that the pole piece unreeled by the second reeling assembly 13b is bonded to the adhesive of the pole piece reel on the first reeling assembly 13a, and the pole piece unreeled by the second reeling assembly 13b is cut off after being bonded, thereby realizing reel change.

The left cutter assembly 52a and the right cutter assembly 52b have the same structure, and the structure of the right cutter assembly 52b is mainly described in this embodiment, and the structure of the left cutter assembly 52a is not described again.

The right cutter assembly 52b comprises two swing arm rotating shafts 522, two swing arms 523, a first moving roller 524, a pressing roller 525, two pressing roller driving units, a second moving roller 527 and a cutter module. The first moving roller 524, the pressing roller 525, the cutter module, and the second moving roller 527 are sequentially disposed along a direction from the first end to the second end of the two swing arms 523.

The first ends of the two swing arm rotating shafts 522 are respectively and rotatably arranged on one side, close to the two mounting plates 353, specifically, two mounting holes are respectively arranged on one side, close to the two mounting plates 353, of the two mounting plates 353, and the first ends of the two swing arm rotating shafts 522 are respectively and rotatably arranged in the mounting holes of the two mounting plates 353 through bearings.

Two ends of the first movable roller 524 are respectively connected to the second ends of the two swing arm rotating shafts 522.

The first ends of the two swing arms 523 are respectively connected with the second ends of the two swing arm rotating shafts 522, and the second ends of the two swing arms 523 respectively extend towards the direction away from the two mounting plates 353 and respectively protrude out of the two mounting plates 353. One of the swing arms 523 is located above the first collet 134, and the other swing arm 523 is located above the second collet 135. The lengths of the first movable roller 524, the pressing roller 525, the cutter 5266 of the cutter module and the second movable roller 527 are all larger than the length of the pole piece material roll.

In this embodiment, two swing arms are the swing arm of V-arrangement.

The second movable roller 527 is arranged between the second ends of the two swing arms 523, and specifically, the two ends of the second movable roller 527 are respectively arranged between the second ends of the two swing arms 523 through the fixing seats.

The pressing roller 524 is located between the two swing arms 523, and two ends of the pressing roller 524 correspond to corners of the two swing arms 523 respectively. The two ends of the pressure roller 524 are respectively connected with the first ends of the two pressure roller swing arms 5252, the second ends of the two pressure roller swing arms 5252 are respectively arranged at the side, close to the two swing arms 523, of the two swing arms 523, specifically, the side, close to the two swing arms 523, of the two pressure roller swing arm connecting shafts 5253 are respectively arranged, and the second ends of the two pressure roller swing arms 5252 are respectively sleeved at the peripheries of the two pressure roller swing arm connecting shafts 5253 and can rotate relative to the corresponding pressure roller swing arm connecting shafts 5253. The two pressure roller driving units are respectively used for driving the two pressure roller swing arms 5252 to rotate relative to the two swing arms 523, the pressure roller driving units are preferably cylinders 5254, specifically, a cross beam 5232 is arranged between the two swing arms 523, two ends of the cross beam 5232 are respectively arranged at one side, close to the two swing arms 523, of the two cylinders 5254 are respectively arranged at two ends of the cross beam 5232, the cross beam 5232 is located between the first moving roller 524 and the two pressure roller swing arm connecting shafts 5253, and the two pressure roller swing arm connecting shafts 5253 are located between the cross beam 5232 and the pressure roller 525. The two cylinders 5254 are obliquely arranged relative to the cross beam 5232 (see fig. 15), cylinder shafts of the two cylinders 5254 are respectively connected with second ends of the two pressing roller swing arms 5252, and the cylinder shafts of the two cylinders 5254 extend and retract relative to the cross beam 5232 in an oblique direction, so that the two pressing roller swing arms 5252 can be driven to rotate relative to the two swing arms 523 around the axis of the two pressing roller swing arm connecting shafts 5253, and the pressing roller 525 can rotate together with the two pressing roller swing arms 5252.

Two inductor mount pads 5292 are arranged at the corners of the two swing arms 523 respectively, the two inductor mount pads 5292 are located between the two swing arms 523, the bottom ends of the two inductor mount pads 5292 protrude out of the bottom ends of the two swing arms 523 respectively and are provided with two optical fiber inductors 529 respectively, the two optical fiber inductors 529 are arranged in a front-back opposite manner, and the two optical fiber inductors 529 are used for detecting a pole piece material roll.

The cutter module includes a cutter shaft 5262, two cutter holders 5264, a cutter fixing plate 5265, a cutter 5266 and a cutter driving unit.

The cutter rotating shaft 5262 and the cutter driving unit are respectively disposed at the sides of the two swing arms 523 close to each other. The cutter spindle 5262 can rotate relative to the corresponding swing arm 523. In this embodiment, one end of the cutter rotating shaft 5262, which is far away from the cutter driving unit, is disposed in the mounting hole of the corresponding swing arm 523 through a bearing. The cutter rotating shaft 5262 of the left cutter assembly 52a and the cutter driving unit of the right cutter assembly 52b are located on the same side, and the cutter driving unit of the left cutter assembly 52a and the cutter rotating shaft 5262 of the right cutter assembly 52b are located on the same side.

The first ends of the two cutter fixing seats 5264 are respectively arranged at two ends of the cutter fixing plate 5265, the second end of one of the cutter fixing seats 5264 is connected with one end of the cutter rotating shaft 5262 close to the cutter driving unit, and the second end of the other one of the cutter fixing seats 5264 is connected with the cutter driving unit, in this embodiment, the cutter driving unit is preferably a rotary cylinder 5263, and the second end of the other one of the cutter fixing seats 5264 is connected with a cylinder shaft of the rotary cylinder 5263. The cutter fixing plate 5265 is located between the pressing roller 525 and the two cutter fixing seats 5264, the cutter 5266 is arranged on one side of the cutter fixing plate 5265, which is far away from the pressing roller 525, and the cutter 5266 partially protrudes out of the bottom end of the cutter fixing plate 5265, and the cutter 5266 is used for cutting off the pole piece. The rotary cylinder 5263 is used for driving the cutter fixing seat 5264 connected with the rotary cylinder to rotate around the axis of the cylinder shaft 5263 relative to the two swing arms 523, so that the other cutter fixing seat 5264, the other cutter rotating shaft 5262, the other cutter fixing plate 5265 and the other cutter 5266 can be driven to rotate together.

A cutter shield 5267 is arranged between the cutter fixing plate 5265 and the pressing roller 525, and two ends of the cutter shield 5267 are respectively arranged on the close sides of the two swing arms 523. The cutter shield 5267 protects the cutter 5266.

The top of cutter module is equipped with the dust absorption box 528, and the both ends of dust absorption box 528 set up the one side that is close to mutually at two swing arms 523 respectively. The top of dust absorption box 528 is equipped with vacuum joint, and vacuum joint is used for being connected with evacuation mechanism, and the bottom of dust absorption box 528 is equipped with the suction hole that corresponds with the cutter module, carries out the evacuation through the suction hole to dust absorption box 528 to can absorb the piece, the dust etc. that form behind the pole piece of cutting off through the suction hole.

The left cutter driving assembly 55a includes a first driving motor 552 and a first speed reducer 553, and the first driving motor 552 is disposed on the first speed reducer 553. The first driving motor 552 is preferably a servo motor, the first speed reducer 553 is preferably a rotary speed reducer, the first speed reducer 553 is disposed at a side of the corresponding mounting plate 353 away from the other mounting plate 353, the first end of one swing arm rotating shaft 522 of the left cutter assembly 52a is connected to an output end of the first speed reducer 553, in practical application, the first driving motor 552 can drive the swing arm rotating shaft 522 of the corresponding left cutter assembly 52a to rotate relative to the corresponding mounting plate 353 through the first speed reducer 553, the rotation of the swing arm rotating shaft 522 can drive the first moving roller 524 and the other swing arm rotating shaft 522 to drive the two swing arms 523 to rotate relative to the two mounting plates 353 around the axis of the two swing arm rotating shafts 522, the press roller 525, the cutter module, the second moving roller 527, the dust box 528 and the two optical fiber sensors 529 can rotate together with the two swing arms 523, so that the left cutter assembly 52a can be driven to rotate relative to the two mounting plates 353 through the left cutter driving assembly 55 a.

The right cutter drive assembly 55b includes a second drive motor 554 and a second speed reducer 555, the second drive motor 554 being disposed on the second speed reducer 555. The second driving motor 554 is preferably a servo motor, the second speed reducer 555 is preferably a rotary speed reducer, the second speed reducer 555 is disposed on one side of the corresponding mounting plate 353, which is far away from the other mounting plate 353, and a first end of one swing arm rotating shaft 522 of the right cutter assembly 52b is connected with an output end of the second speed reducer 555, in practical application, the second driving motor 554 may drive the swing arm rotating shaft 522 of the corresponding right cutter assembly 52b to rotate relative to the corresponding mounting plate 353 through the second speed reducer 555, the rotation of the swing arm rotating shaft 522 may drive the first movable roller 524 and the other swing arm rotating shaft 522 to rotate, so as to drive the two swing arms 523 to rotate relative to the two mounting plates 353 around axes of the two swing arm rotating shafts 522, the pressure roller 525, the cutter module, the second movable roller 527, the dust suction box 528, and the two optical fiber sensors 529 may rotate together with the two swing arms 523, so that the right cutter assembly 52b may be driven to rotate relative to the two mounting plates 353 through the right cutter driving assembly 55b.

Through the structure, the working principle of the embodiment is as follows:

firstly, two pole piece material rolls are respectively arranged on a first chuck 134 and a second chuck 135 of a first coiling and uncoiling assembly 13a and a first chuck 134 and a second chuck 135 of a second coiling and uncoiling assembly 13b, and then the first chuck 134, the second chuck 135 and the pole piece material rolls are driven to rotate by a rotation driving module of the second coiling and uncoiling assembly 13b so as to realize the uncoiling of the pole piece 100b of the pole piece material roll, and the uncoiled pole piece 100b can sequentially pass through a first movable roller 524, a second supporting passing roller 383 and a fixed roller 83 of a right cutter assembly 52 b. When the pole piece material roll on the second winding and unwinding assembly 13b is used up, the right cutter assembly 52b is driven by the right cutter driving assembly 55b to rotate to a preset position along the clockwise direction, at this time, the second movable roller 527 and the pressing roller 525 of the right cutter assembly 52b are in contact with the pole piece 100b of the pole piece material roll on the second winding and unwinding assembly 13b, the swing arm 523 is arranged in a V shape, the pole piece 100b of the pole piece material roll on the second winding and unwinding assembly 13b can be prevented from being broken, then the two mounting plates 353 are driven by the horizontal movement driving assembly to move leftwards relative to the frame 32, so that the left cutter assembly 52a and the right cutter assembly 52b can be driven to move leftwards relative to the frame 32, when the two optical fiber sensors 529 of the right cutter assembly 52b detect the pole piece material roll 100a on the first winding and unwinding assembly 13a, the horizontal movement driving assembly stops driving the two mounting plates 353 to move, so that the left cutter assembly 52a and the right cutter assembly 52b stop moving leftwards, at this time, the right cutter assembly 52b reaches a reel changing position, as shown in fig. 16, the first chuck 134, the second chuck 135 and the pole piece roll 100a are driven to rotate at an accelerated speed by the rotation driving module of the first winding and unwinding assembly 13a until the linear velocity of the maximum outer diameter of the pole piece roll 100a on the first winding and unwinding assembly 13a matches the traveling velocity of the pole piece 100b of the pole piece roll on the second winding and unwinding assembly 13b, then the pressing roller 525 is driven to rotate in a clockwise direction by the two pressing roller driving units of the right cutter assembly 52b to press the pole piece 100b of the pole piece roll on the second winding and unwinding assembly 13b to the pole piece roll 100a of the first winding and unwinding assembly 13a by the pressing roller 525, so that the pole piece 100b of the pole piece roll on the second winding and unwinding assembly 13b is bonded to the rubberized material of the pole piece roll 100a on the first winding and unwinding assembly 13a, and then the cutter 5266 is driven to rotate in a counterclockwise direction by the cutter driving unit to rotate the pole piece roll 5266 on the second winding and unwinding assembly 13b by the cutter 5266 The pole piece 100b of the roll of sheet material is cut, thus completing the roll change. After the completion, the press roller 525 is driven to return by the two press roller driving units of the right cutter assembly 52b, the cutter 5266 is driven to return by the cutter driving unit, then the right cutter assembly 52b is driven to rotate along the counterclockwise direction by the right cutter driving assembly 55b to return to the initial position, then the left cutter assembly 52a and the right cutter assembly 52b are driven to move rightwards to the initial position by the horizontal movement driving assembly, then the first chuck 134, the second chuck 135 and the pole piece material roll 100a are driven to rotate by the rotation driving module of the first winding and unwinding assembly 13a so as to unwind the pole piece of the pole piece material roll 100a, and then a new pole piece material roll is mounted on the first chuck 134 and the second chuck 135 of the second winding and unwinding assembly 13b so as to wait for the next roll change.

When the pole piece of the pole piece material roll 100a on the first winding and unwinding assembly 13a is completely consumed, the left cutter assembly 52a is driven to rotate to a preset position along the anticlockwise direction by the left cutter driving assembly 55a, the second movable roller 527 of the left cutter assembly 52a is in contact with the pole piece of the pole piece material roll 100a on the first winding and unwinding assembly 13a at the moment, then the two mounting plates 353 are driven to move rightwards relative to the frame 32 by the horizontal movement driving assembly, so that the left cutter assembly 52a and the right cutter assembly 52b can be driven to move rightwards, when the two optical fiber sensors 529 of the left cutter assembly 52a detect a new pole piece material roll on the second winding and unwinding assembly 13b, the two mounting plates 353 are stopped to be driven to move by the horizontal movement driving assembly, so that the left cutter assembly 52a and the right cutter assembly 52b stop moving rightwards, at the moment, the left cutter assembly 52a reaches the roll changing position, then the first chuck 134, the second chuck 135 and the new pole piece material roll are driven by the rotation driving module of the second winding and unwinding assembly 13b to rotate at an accelerated speed until the linear speed of the maximum outer diameter of the new pole piece material roll on the second winding and unwinding assembly 13b is matched with the traveling speed of the pole piece material roll 100a on the first winding and unwinding assembly 13a, then the pressing roller 525 is driven by the two pressing roller driving units of the left cutter assembly 52a to rotate in the counterclockwise direction so as to press the pole piece of the pole piece material roll 100a on the first winding and unwinding assembly 13a to the new pole piece material roll on the second winding and unwinding assembly 13b through the pressing roller 525, so that the pole piece of the pole piece material roll 100a on the first winding and unwinding assembly 13a is bonded with the rubberizing of the new pole piece material roll on the second winding and unwinding assembly 13b, then the cutter driving unit of the left cutter assembly 52a drives the cutter 5266 to rotate in the clockwise direction so as to cut the pole piece of the pole piece material roll 100a on the first winding and unwinding assembly 13a through the cutter 5266, thus, the roll change is completed. After the unwinding, the press roller 525 is driven to return by the two press roller driving units of the left cutter assembly 52a, the cutter 5266 is driven to return by the cutter driving unit, then the left cutter assembly 52a is driven to rotate clockwise by the left cutter driving assembly 55a to return to the initial position, then the left cutter assembly 52a and the right cutter assembly 52b are driven to move leftwards to the initial position by the horizontal movement driving assembly, then the first chuck 134, the second chuck 135 and a new pole piece material roll are driven to rotate by the rotation driving module of the second winding and unwinding assembly 13b so as to unwind the pole piece of the new pole piece material roll, and then the new pole piece material roll is mounted on the first chuck 134 and the second chuck 135 of the first winding and unwinding assembly 13a to wait for the next roll change.

The present embodiment can achieve the same technical effects as the first embodiment.

The winding and unwinding mechanism of this embodiment can also be used as a mechanism for winding pole pieces, at this time, the first winding and unwinding assembly 13a and the second winding and unwinding assembly 13b are both used for installing an empty winding drum and winding the pole pieces on the empty winding drum, the first chuck 134 and the second chuck 135 are used for installing the empty winding drum, the installation manner of the empty winding drum is the same as that of the pole piece material roll, the left cutter assembly 52a is used for pressing the pole pieces wound by the first winding and unwinding assembly 13a onto the empty winding drum on the second winding and unwinding assembly 13b so that the pole pieces wound by the first winding and unwinding assembly 13a are bonded with the tape of the empty winding drum on the second winding and unwinding assembly 13b and the pole pieces wound by the first winding and unwinding assembly 13a are cut off after bonding, thereby realizing roll change. The right cutter assembly 52b is used for pressing the pole pieces wound by the second winding and unwinding assembly 13b to the empty winding drum on the first winding and unwinding assembly 13a so that the pole pieces wound by the second winding and unwinding assembly 13b are bonded with the rubberizing of the empty winding drum on the first winding and unwinding assembly 13a and the pole pieces wound by the second winding and unwinding assembly 13b are cut off after bonding, thereby realizing the roll change. Two fiber sensors 529 are used to detect an empty reel.

The specific working principle is as follows:

firstly, two empty winding drums are respectively arranged on a first chuck 134 and a second chuck 135 of a first winding and unwinding assembly 13a and a first chuck 134 and a second chuck 135 of a second winding and unwinding assembly 13b, and then the first chuck 134, the second chuck 135 and the empty winding drums are driven to rotate by a rotation driving module of the second winding and unwinding assembly 13b so as to realize winding of pole pieces, wherein a wound pole piece fixed roller 83, a wound second support passing roller 383 and a first moving roller 524 of a right cutter assembly 52 b. When the empty winding drum on the second winding and unwinding assembly 13b is fully wound with pole pieces, the right cutter driving assembly 55b drives the right cutter assembly 52b to rotate to a preset position in the clockwise direction, at this time, the second moving roller 527 and the pressing roller 525 of the right cutter assembly 52b are in contact with the pole pieces wound on the second winding and unwinding assembly 13b, then the two mounting plates 353 are driven by the horizontal movement driving assembly to move leftwards relative to the frame 32, so that the left cutter assembly 52a and the right cutter assembly 52b can be driven to move leftwards relative to the frame 32, when the empty winding drum on the first winding and unwinding assembly 13a is detected by the two optical fiber sensors 529 of the right cutter assembly 52b, the horizontal movement driving assembly stops driving the two mounting plates 353 to move, so that the left cutter assembly 52a and the right cutter assembly 52b stop moving leftwards, at this time, the right cutter assembly 52b reaches the winding drum changing position, then the first chuck 134, the second chuck 135 and the empty winding drum are driven by the rotation driving module of the first winding and unwinding assembly 13a rotating driving module 13a until the maximum outer diameter of the empty winding drum on the first winding drum 13a is matched with the linear velocity of the second winding drum 5266 of the second winding and the pole piece winding and unwinding assembly 13b, so that the pole piece winding drum is adhered by the first winding and unwinding and the second winding drum driving assembly 13b, so that the second winding and the pole piece winding and unwinding assembly 13b are adhered by the dynamic pressure roller 52driving unit 13b, so that the winding and the winding drum is adhered, and the pole piece winding drum is adhered, so that the pole piece winding and the pole piece winding drum is adhered to rotate along the winding and unwinding assembly 13b, and the pole piece winding drum is adhered along the winding drum is adhered, and unwinding assembly 13b, and then the winding drum is adhered, so that the pole piece winding drum is adhered, and unwinding assembly 13b, and the pole piece winding drum is adhered to rotate, and unwinding assembly 13b, and the pole piece winding drum is adhered to move counterclockwise. After the winding is finished, the press roller 525 is driven to return by the two press roller driving units of the right cutter assembly 52b, the cutter 5266 is driven to return by the cutter driving unit, then the right cutter assembly 52b is driven to rotate along the anticlockwise direction by the right cutter driving assembly 55b to return to the initial position, then the left cutter assembly 52a and the right cutter assembly 52b are driven to move rightwards to the initial position by the horizontal movement driving assembly, then the first chuck 134, the second chuck 135 and the empty reel are driven to rotate by the rotation driving module of the first winding and unwinding assembly 13a so as to wind pole pieces, and then a new empty reel is mounted on the first chuck 134 and the second chuck 135 of the second winding and unwinding assembly 13b to wait for the next reel change.

When the empty winding drum on the first winding and unwinding assembly 13a is full of pole pieces, the left cutter assembly 52a is driven to rotate to a preset position along the counterclockwise direction by the left cutter driving assembly 55a, at the moment, the second movable roller 527 of the left cutter assembly 52a is in contact with the pole pieces wound by the first winding and unwinding assembly 13a, then the two mounting plates 353 are driven to move rightwards relative to the frame 32 by the horizontal movement driving assembly, so that the left cutter assembly 52a and the right cutter assembly 52b can be driven to move rightwards, when the two optical fiber sensors 529 of the left cutter assembly 52a detect a new empty winding drum on the second winding and unwinding assembly 13b, the two mounting plates 353 are stopped to be driven to move by the horizontal movement driving assembly, so that the left cutter assembly 52a and the right cutter assembly 52b stop moving rightwards, and at the moment, the left cutter assembly 52a reaches the winding and unwinding position, then, the first chuck 134, the second chuck 135 and the new empty winding drum are driven to rotate at an accelerated speed by the rotation driving module of the second winding and unwinding assembly 13b until the linear speed of the maximum outer diameter of the new empty winding drum on the second winding and unwinding assembly 13b is matched with the traveling speed of the pole piece wound by the first winding and unwinding assembly 13a, then the two pressing roller driving units of the left cutter assembly 52a drive the pressing roller 525 to rotate in the counterclockwise direction so as to press the pole piece wound by the first winding and unwinding assembly 13a onto the new empty winding drum on the second winding and unwinding assembly 13b by the pressing roller 525, so that the pole piece wound by the first winding and unwinding assembly 13a is bonded with the new empty winding drum on the second winding and unwinding assembly 13b by the rubberizing of the new empty winding drum, and then the cutter 5266 is driven to rotate in the clockwise direction by the cutter driving unit of the left cutter assembly 52a so as to cut off the pole piece wound by the first winding and unwinding assembly 13a through the cutter 5266, thus, the winding and unwinding of the pole piece are completed. After the winding is finished, the press roller 525 is driven to return by the two press roller driving units of the left cutter assembly 52a, the cutter 5266 is driven to return by the cutter driving unit, then the left cutter assembly 52a is driven to rotate clockwise by the left cutter driving assembly 55a to return to the initial position, then the left cutter assembly 52a and the right cutter assembly 52b are driven to move leftwards to the initial position by the horizontal movement driving assembly, then the first chuck 134, the second chuck 135 and a new empty reel are driven to rotate by the rotation driving module of the second winding and unwinding assembly 13b, so that pole pieces are wound, and then the new empty reel is mounted on the first chuck 134 and the second chuck 135 of the first winding and unwinding assembly 13a to wait for the next reel change.

The invention further provides a coating machine which comprises the winding and unwinding mechanism.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A winding and unwinding mechanism is characterized by comprising a winding and unwinding device, a moving device and a cutter device;

the winding and unwinding device comprises a rack, and a first winding and unwinding assembly and a second winding and unwinding assembly which are arranged on the rack;

the moving device comprises a frame positioned above the winding and unwinding device, a horizontal movement driving assembly and two mounting plates which are oppositely arranged front and back, the two mounting plates are respectively in sliding connection with the frame, and the horizontal movement driving assembly is used for driving the two mounting plates to move left and right relative to the frame;

the cutter device is positioned above the coiling and uncoiling device and arranged between the two mounting plates.

2. The winding and unwinding mechanism according to claim 1, wherein the rack comprises two vertical column groups arranged in parallel left and right, and each vertical column group comprises a first vertical column and a second vertical column which are arranged in a front-back opposite manner;

the first coiling and uncoiling component and the second coiling and uncoiling component are respectively arranged on the two upright post groups;

first receive and release a roll subassembly and second and receive and release a roll subassembly and all include first pivot, second pivot, first chuck, second chuck and rotation drive module, first pivot and second pivot are relative setting from beginning to end, first pivot sets up in the through-hole of first stand and first pivot first end, second end bulge respectively in the outside of first stand, inboard, first pivot can be relative first stand rotates, the second pivot sets up in the through-hole of second stand and first end, the second end of second pivot bulge respectively in the outside of second stand, inboard, the second pivot can be relative the second stand rotates, relative setting around first chuck and the second chuck are, first chuck sets up the second end of first pivot, the second chuck sets up the second end of second pivot, rotation drive module is used for the drive first pivot is relative first stand rotates.

3. The winding and unwinding mechanism of claim 2, wherein the first rotating shaft can move back and forth relative to the first upright, the second rotating shaft can move back and forth relative to the second upright, and each of the first winding and unwinding assembly and the second winding and unwinding assembly comprises a first moving driving module and a second moving driving module, the first moving driving module is used for driving the first rotating shaft to move back and forth relative to the first upright, and the second moving driving module is used for driving the second rotating shaft to move back and forth relative to the second upright.

4. The winding and unwinding mechanism according to claim 1, wherein the horizontal movement driving assembly comprises a horizontal movement driving unit, a first synchronous belt unit and a second synchronous belt unit, the horizontal movement driving unit is arranged on the left side of the top end of the frame, the first synchronous belt unit and the second synchronous belt unit are respectively arranged on the front side and the rear side of the top end of the frame, the first synchronous belt unit and the second synchronous belt unit respectively comprise driving wheels, driven wheels and synchronous belts sleeved on the peripheries of the driving wheels and the driven wheels, the driving wheels and the driven wheels are respectively close to the left end and the right end of the frame, the driving wheels of the first synchronous belt unit and the driving wheels of the second synchronous belt unit are respectively connected with the horizontal movement driving unit through two couplers, the two mounting plates are respectively located in the frame, the top ends and the bottom ends of the two mounting plates are respectively located above and below the frame, the two mounting plates are respectively close to the inner wall and the inner wall of the rear side of the frame, and the two mounting plates are respectively connected with the synchronous belts of the first synchronous belt unit and the synchronous belt of the second synchronous belt unit.

5. The winding and unwinding mechanism according to claim 1, wherein the moving device further comprises a vertical movement driving assembly, the vertical movement driving assembly comprises two linear modules, the two linear modules are arranged in a front-back opposite manner, the two linear modules are respectively arranged at the adjacent sides of the two mounting plates, and the top ends and the bottom ends of the linear modules are respectively located above and below the frame; the cutter device is arranged between the driving sides of the two linear modules, and the two linear modules are used for driving the cutter device to move up and down.

6. The winding and unwinding mechanism according to claim 5, wherein the cutter device comprises two first fixing plates and two compression roller assemblies, the two first fixing plates are arranged between the driving sides of the two linear modules respectively, the two linear modules are used for driving the two first fixing plates to move up and down, each compression roller assembly comprises two compression roller mounting plates, a left compression roller, a right compression roller and two compression roller driving units, the two compression roller mounting plates are arranged in a front-back opposite mode, two compression roller rotating shafts are arranged on one sides, close to each other, of the two first fixing plates respectively, one ends, far away from the corresponding first fixing plates, of the two compression roller rotating shafts are rotatably arranged in mounting holes of the two compression roller mounting plates respectively, the left compression roller and the right compression roller are arranged between the two compression roller mounting plates and are arranged in a left-right parallel mode, the two compression roller rotating shafts are arranged between the left compression roller and the right compression roller, the two compression roller driving units are arranged on one sides, close to each first fixing plates, and are used for driving the two compression roller mounting plates to rotate around the axes of the two compression roller rotating shafts respectively.

7. The winding and unwinding mechanism of claim 6, wherein the cutter device further comprises a left cutter assembly and a right cutter assembly, the left cutter assembly and the right cutter assembly are arranged in bilateral symmetry, the pressure roller assembly is located between the left cutter assembly and the right cutter assembly, each of the left cutter assembly and the right cutter assembly comprises a cutter rotating shaft, two cutter fixing seats, a cutter fixing plate, a cutter and a cutter driving unit, the cutter rotating shaft and the cutter driving unit are respectively arranged on the sides of the two first fixing plates, which are close to each other, the cutter rotating shaft can rotate relative to the corresponding first fixing plate, the first ends of the two cutter fixing seats are respectively arranged at the two ends of the cutter fixing plates, the second end of one of the cutter fixing seats is connected with the cutter rotating shaft, the second end of the other cutter fixing seat is connected with the cutter driving unit and is driven by the cutter driving unit to rotate, the cutter fixing plate is located between the pressure roller assembly and the two cutter fixing seats, the cutter is arranged on the side of the cutter fixing plate, which is far away from the pressure roller assembly, and the cutter protrudes out of the bottom end of the cutter fixing plate.

8. The winding and unwinding mechanism according to claim 6, wherein the cutter device further comprises a roller passing assembly and two second fixing plates, the two second fixing plates are respectively disposed at the top ends of the two first fixing plates and correspond to the pressure roller assembly, the roller passing assembly comprises two roller passing rotating shafts, two roller passing mounting plates, a first roller, a second roller and two roller passing driving units, the two roller passing mounting plates are oppositely disposed in a front-back direction, first ends of the two roller passing rotating shafts are respectively rotatably disposed at the sides of the two second fixing plates close to each other, second ends of the two roller passing rotating shafts are respectively disposed at the sides of the two roller passing mounting plates far away from each other, the first roller is located below the second roller, the two roller passing rotating shafts are located between the first roller and the second roller, and the two roller passing driving units are respectively used for driving the two roller passing rotating shafts to rotate relative to the two second fixing plates.

9. The winding and unwinding mechanism of claim 6, wherein two optical fiber sensors are respectively arranged at bottom ends of the two first fixing plates, and the two optical fiber sensors correspond to the left pressing roller.

10. The winding and unwinding mechanism according to claim 1, further comprising a movable roller device, wherein the movable roller device is located between the first winding and unwinding assembly and the second winding and unwinding assembly, the movable roller device comprises two mounting arms and a movable roller, the two mounting arms are oppositely arranged in the front and back direction and are arranged on the rack, the movable roller is rotatably arranged between the two mounting arms, and the movable roller is located above the first winding and unwinding assembly and the second winding and unwinding assembly and below the cutter device.

11. The winding and unwinding mechanism according to claim 1, wherein the cutter device comprises a left cutter assembly, a right cutter assembly, a left cutter driving assembly and a right cutter driving assembly, the left cutter assembly and the right cutter assembly are both arranged between the two mounting plates and are arranged in bilateral symmetry, the left cutter driving assembly and the right cutter driving assembly are respectively arranged on one sides of the two mounting plates, which are far away from each other, the left cutter driving assembly is used for driving the left cutter assembly to rotate relative to the two mounting plates, and the right cutter driving assembly is used for driving the right cutter assembly to rotate relative to the two mounting plates.

12. The winding and unwinding mechanism of claim 11, wherein the left cutter assembly and the right cutter assembly each include two swing arm rotating shafts, two swing arms, a first movable roller, a pressure roller, and two pressure roller driving units, first ends of the two swing arm rotating shafts are respectively rotatably disposed at the sides of the two mounting plates that are close to each other, first ends of the two swing arms are respectively connected to second ends of the two swing arm rotating shafts, second ends of the two swing arms extend in a direction away from the two mounting plates, two ends of the first movable roller are respectively connected to second ends of the two swing arm rotating shafts, the pressure roller is located between the two swing arms, two ends of the pressure roller are respectively connected to first ends of the two pressure roller swing arms, second ends of the two pressure roller swing arms are respectively disposed at the sides of the two swing arms that are close to each other, and the two pressure roller driving units are respectively used for driving the two pressure roller swing arms to rotate relative to the two swing arms; the left cutter driving assembly is connected with the first end of one of the swing arm rotating shafts of the left cutter assembly and used for driving the corresponding mounting plate of the swing arm rotating shaft to rotate, and the right cutter driving assembly is connected with the first end of one of the swing arm rotating shafts of the right cutter assembly and used for driving the corresponding mounting plate of the swing arm rotating shaft to rotate.

13. The winding and unwinding mechanism of claim 12, wherein the left cutter assembly and the right cutter assembly each comprise a second movable roller disposed between the second ends of the two cutter swing arms.

14. The winding and unwinding mechanism according to claim 13, wherein the left cutter assembly and the right cutter assembly each include a cutter module disposed between the press roller and the second movable roller, the cutter module includes two cutter fixing seats, a cutter fixing plate, a cutter rotating shaft and a cutter driving unit, the cutter rotating shaft and the cutter driving unit are respectively disposed on the sides of the two swing arms close to each other, the cutter rotating shaft is rotatable relative to the corresponding swing arm, the first ends of the two cutter fixing seats are respectively disposed at the two ends of the cutter fixing plate, the second end of one of the cutter fixing seats is connected to the cutter rotating shaft, the second end of the other cutter fixing seat is connected to the cutter driving unit and is driven by the cutter driving unit to rotate, the cutter fixing plate is disposed between the press roller and the two cutter fixing seats, the cutter is disposed on the side of the cutter fixing plate away from the press roller, and the cutter partially protrudes out of the bottom end of the cutter fixing plate.

15. The winding and unwinding mechanism of claim 14, wherein the two swing arms are both V-shaped swing arms, and two ends of the pressing roller respectively correspond to corners of the two swing arms; the corner of two swing arms is equipped with two inductor mount pads respectively, the bottom of two inductor mount pads respectively protrusion in the bottom of two swing arms is equipped with two fiber optic inductors respectively, two fiber optic inductors are relative setting around being.

16. A coating machine, characterized in that, it comprises the winding and unwinding mechanism of any one of claims 1 to 15.