CN219326384U - Winding and unwinding mechanism and coating machine - Google Patents

Abstract

The utility model 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 frame, a first winding and unwinding assembly and a second winding and unwinding assembly, wherein the first winding and unwinding assembly and the second winding and unwinding assembly are arranged on the frame; the moving device comprises a frame, a horizontal movement driving assembly and two mounting plates, wherein the frame is positioned above the winding and unwinding device, the mounting plates are oppositely arranged front and back, the two mounting plates are respectively connected with the frame in a sliding manner, 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 located above the winding and unwinding device and arranged between the two mounting plates. The utility model can avoid damaging the pole piece in the process of changing the coil, and improves the production efficiency.

Description

Winding and unwinding mechanism and coating machine

Technical Field

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

Background

The turret type unreeling mechanism of the existing lithium battery manufacturing equipment such as a coating machine generally comprises a turret device, the turret device generally comprises a turret, a first unreeling component and a second unreeling component, the first unreeling component and the second unreeling component are respectively arranged on two sides of the turret and are symmetrically arranged, the first unreeling component and the second unreeling component are respectively used for mounting pole piece material rolls and unreeling pole pieces of the pole piece material rolls, when unreeling work is carried out, for example, when the consumption of the pole piece material rolls of the first unreeling component is over, the standby pole piece material rolls on the second unreeling component need to be started, the reel replacing operation needs to be carried out, the current reel replacing operation is to change the positions of the first unreeling component and the second unreeling component through the turret, the reel of the pole piece material rolls on the first unreeling component and the standby pole piece material rolls on the second unreeling component are exchanged and connected, and the pole pieces are easy to damage due to the fact that the pole pieces which can drive the unreeling are moved greatly in the reel replacing process, and the production efficiency is reduced.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the winding and unwinding mechanism and the coating machine, which can avoid damaging the pole piece in the winding changing process and improve the production efficiency.

The technical scheme adopted for solving the technical problems is as follows:

the first aspect of the utility model provides a winding and unwinding mechanism, which comprises a winding and unwinding device, a moving device and a cutter device; the winding and unwinding device comprises a frame, a first winding and unwinding assembly and a second winding and unwinding assembly, wherein the first winding and unwinding assembly and the second winding and unwinding assembly are arranged on the frame; the moving device comprises a frame, a horizontal movement driving assembly and two mounting plates, wherein the frame is positioned above the winding and unwinding device, the mounting plates are oppositely arranged front and back, the two mounting plates are respectively connected with the frame in a sliding manner, 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 located above the winding and unwinding device and arranged between the two mounting plates.

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

The beneficial effects of the utility model are as follows: the utility model has simple structure, small occupied space and easy installation and debugging, and the positions of the first winding and unwinding assembly and the second winding and unwinding assembly do not need to be exchanged when the reel is replaced, the unreeled pole pieces do not move greatly, the pole pieces can be prevented from being damaged, the production efficiency is improved, and the use requirement is greatly met.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a winding and unwinding mechanism according to a first embodiment of the present utility model;

FIG. 2 is a schematic front view of the unwind and wind-up mechanism of FIG. 1;

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

FIG. 4 is a schematic view of the unwind apparatus of FIG. 3 taken from the first unwind assembly;

FIG. 5 is a schematic view of the moving device and the fixed roller device of the winding and unwinding mechanism shown in FIG. 1;

FIG. 6 is a schematic view of the cutter assembly of the unwind and wind-up mechanism of FIG. 1;

figure 7 is a schematic cross-sectional view of the cutter assembly of figure 6;

FIG. 8 is a schematic view of the cutter device of the unwind and wind mechanism of FIG. 1 in the reel change position;

FIG. 9 is a schematic view of the cutter device of the unwind and wind mechanism of FIG. 1 returned to an original state and the roller passing assembly of the cutter device rotated 180 degrees in a counterclockwise direction;

fig. 10 is a schematic structural view of a winding and unwinding mechanism according to a second embodiment of the present utility model;

FIG. 11 is a schematic front view of the unwind and wind-up mechanism of FIG. 10;

FIG. 12 is a schematic view of the moving device, cutter device and fixed roller device of the unwind and wind mechanism shown in FIG. 10;

FIG. 13 is a schematic view of the cutter assembly of the unwind and wind-up mechanism of 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 removed and the suction box removed;

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

fig. 16 is a schematic view of the right cutter assembly of the cutter device of the unwind and wind mechanism of fig. 10 in a reel change position.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.

First embodiment

Referring to fig. 1 and 2, a winding and unwinding mechanism according to a first embodiment of the present utility model includes a winding and unwinding device 10, a moving device 30, a cutter device 50, a roller moving device 70 and a roller fixing device 80.

As shown in 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 provided on the frame. The first winding and unwinding assembly 13a and the second winding and unwinding assembly 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 installing the pole piece material roll and unwinding the pole piece of the pole piece material roll.

The frame includes two sets of stand that are left and right sides parallel arrangement, and the stand is organized including being the relative first stand 122 and the second stand 123 that set up around, and first stand 122 and second stand 123 are used for setting up on, for example, the board. The first upright posts 122 and the second upright posts 123 of the two upright post groups are respectively 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 upright column groups. The first winding and unwinding assembly 13a and the second winding and unwinding assembly 13b have the same structure, and in this embodiment, the structure of the first winding and unwinding assembly 13a is mainly described, and the structure of the second winding and unwinding 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 movement driving module, and a second movement driving module.

The first shaft 132 is disposed in the through hole at the top end of the first upright 122, and the first end and the second end of the first shaft 132 protrude outside and inside the first upright 122, respectively (the outside of the first upright 122 refers to the side of the first upright 122 away from the second upright 123, and the inside of the first upright 122 refers to the side of the first upright 122 close to the second upright 123). In this embodiment, the outer periphery of the first rotating shaft 132 is sleeved with a first sliding shaft sleeve 1322, the first sliding shaft sleeve 1322 is located in a through hole of the first upright post 122, two bearings are respectively disposed between two ends of the first sliding shaft sleeve 1322 and an inner wall of the through hole of the first upright post 122, the two bearings 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 upright post 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 upright post 122, so that the first rotating shaft 132 can rotate relative to the first upright post 122.

The second rotating shaft 133 is disposed opposite to the first rotating shaft 132. The second rotating shaft 133 is disposed in the through hole at the top end of the second upright 123, and the first end and the second end of the second rotating shaft 133 protrude outside and inside the second upright 123 respectively (the outside of the second upright 123 refers to the side of the second upright 123 away from the first upright 122, and the inside of the second upright 123 refers to the side of the second upright 123 close to the first upright 122). The second rotating shaft 133 is provided with a second sliding shaft sleeve 1332 in a surrounding manner, the second sliding shaft sleeve 1332 is located in the through hole of the second upright 123, a first end of the second sliding shaft sleeve 1332 protrudes out of the second upright 123, and a second end of the second sliding shaft sleeve 1332 protrudes out of the inner side of the second upright 123. The second sliding sleeve 1332 is provided at an outer circumference thereof with a third sliding sleeve 1333, the third sliding sleeve 1333 being located in the through hole of the second upright 123, the third sliding sleeve 1333 being fixed to an inner wall of the through hole of the second upright 123. Two bearings are respectively provided between both ends of the second rotating shaft 133 and the inner wall of the second sliding shaft sleeve 1332, the two bearings are respectively sleeved to the outer circumference of the second rotating shaft 133, the second rotating shaft 133 can rotate relative to the second sliding shaft sleeve 1332 through the two bearings, and the second rotating shaft 133 can rotate relative to the second upright 123 because the third sliding shaft sleeve 1333 is fixed to the inner wall of the through hole of the second upright 123.

The first clamping head 134 and the second clamping head 135 are oppositely arranged in front-back direction, the first clamping head 134 is arranged at the second end of the first rotating shaft 132, and the second clamping head 135 is arranged at the second end of the second rotating shaft 133. Rotation of the first shaft 132 may drive the first chuck 134 to rotate together, and rotation of the second shaft 133 may drive the second chuck 135 to rotate together. The first and second clips 134, 135 are used to mount pole piece rolls. In practical application, one ends of the first clamping head 134 and the second clamping head 135, which are close to each other, are respectively spliced with two ends of a charging barrel of the pole piece material roll, so that the pole piece material roll is mounted through the first clamping head 134 and the second clamping head 135.

The rotation driving module is used for driving the first rotation 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 upright 122 of the two upright groups. The first transmission unit includes a first synchronizing wheel 1432, a second synchronizing wheel 1433, and a timing belt (not shown) interposed between the first synchronizing wheel 1432 and the second synchronizing wheel 1433. The first synchronizing wheel 1432 is sleeved on the periphery of the output end of the variable frequency 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, the 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, the 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 sleeved on the periphery of the first end of the connecting shaft 14331, and the second end of the connecting shaft 14331 protrudes out of the second end of the connecting sleeve 14332 and stretches into the first upright post 122. A bearing is provided between the connection shaft 14331 and the inner wall of the connection sleeve 14332, and the connection shaft 14331 is rotatable with respect to the connection sleeve 14332 by the bearing. 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 shaft 132 and is sleeved on the outer circumference of the second end of the connection shaft 14331. The second sprocket 1323 is sleeved on the outer periphery of the first sliding sleeve 1322. In practical application, the variable frequency motor 142 can drive the first synchronous wheel 1432 to rotate, under the action of the synchronous belt and the second synchronous wheel 1433, the connecting shaft 14331 can be driven to rotate relative to the connecting sleeve 14332, and then the first sprocket 14333 can be driven to rotate together, under the action of the chain and the second sprocket 1323, the second sprocket 1323 can drive the first sliding shaft sleeve 1322 to rotate relative to the first upright post 122, and then the first rotating shaft 132 can be driven to rotate relative to the first upright post 122, and when pole piece material rolls are arranged on the first clamping head 134 and the second clamping head 135, under the action of the pole piece material rolls, the rotation of the first rotating shaft 132 can drive the first clamping head 134, the pole piece material rolls and the second clamping head 135 to rotate together.

In this embodiment, the first shaft 132 can slide back and forth relative to the first sliding sleeve 1322, so that the first shaft 132 can move back and forth relative to the first upright 122. The first moving driving module includes two first moving driving units and a connection arm 153. The connection arm 153 is fitted to the outer circumference of the first end of the first rotation shaft 132 through a moving bearing 1532. The first moving driving unit is preferably an air cylinder 152, the two air cylinders 152 are respectively disposed on the left side and the right side of the top end of the first upright post 122, the air cylinder shafts of the two air cylinders 152 are respectively connected with two ends of the connecting arm 153, and during practical application, the connecting arm 153 can be driven to move back and forth by the two air cylinders 152, 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 the first clamping head 134 can be driven to move back and forth. The movable bearing 1532 can ensure that the connection arm 153 does not rotate along with the first rotation shaft 132 when the first rotation shaft 132 rotates, and can drive the first rotation shaft 132 to move along with the connection arm 153 when the connection 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 the second sliding shaft sleeve 1332 can drive the second rotating shaft 133 to move back and forth relative to the second upright post 123 under the action of the bearing between the second rotating shaft 133 and the second sliding shaft sleeve 1332. The second movable driving module comprises a second movable driving unit and a screw rod assembly. The second moving driving unit includes a three-phase motor 162 and a speed reducer 163, the speed reducer 163 is disposed inside the second upright 123, and the three-phase motor 162 is disposed at the top end of the speed reducer 163. The lead screw subassembly includes polished rod 1632, threaded rod 164, lead screw nut 1642 and connecting piece 165, and polished rod 1632 is located second stand 123, and threaded rod 164 is located the rear of second stand 123, and polished rod 1632's one end is connected with the output of speed reducer 163, and the other end stretches out outside second stand 123 and is connected with the one end of threaded rod 164. A lead screw nut 1642 is disposed around the outer circumference of the threaded rod 164 and is threadedly engaged with the threaded rod 164. The connector 165 is fitted around the outer periphery of the lead screw nut 1642. The bottom of connecting piece 165 is connected with the first end of second slip axle sleeve 1332, and the top activity cover of connecting piece 165 is established in the periphery of guide bar 166. The guide rod 166 is located above the threaded rod 164, and one end of the guide rod 166 extends into the second upright 123 and is fixed in the 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 123 through the speed reducer 163, and the rotation of the threaded rod 164 can drive the lead screw nut 1642 to move forward and backward relative to the second upright 123, so as to drive the connecting piece 165 to move forward and backward relative to the second upright 123, and further drive the second sliding shaft sleeve 1332 to move forward and backward relative to the second upright 123, so that the second rotating shaft 133 can be driven to move forward and backward relative to the second upright 123 under the action of the bearing between the second sliding shaft sleeve 1332 and the second rotating shaft 133, and further drive the second clamping head 135 to move forward and backward. The guide bar 166 plays a guiding role for the movement of the link 165.

When the pole piece coil is required to be mounted on the first clamping head 134 and the second clamping head 135, the first rotating shaft 132 is driven by the first moving driving module to move forwards, the second rotating shaft 133 is driven by the second moving driving module to move backwards, the distance between the first clamping head 134 and the second clamping head 135 is larger than the length of the pole piece coil, one end of a charging barrel of the pole piece coil is spliced with one end, close to the second clamping head 135, of the first clamping head 134, for example, then the first rotating shaft 132 is driven by the first moving driving module to move backwards to an initial position, the second rotating shaft 133 is driven by the second moving driving module to move forwards to an initial position, and one end, close to the first clamping head 134, of the second clamping head 135 can be spliced with the other end, close to the charging barrel of the pole piece coil, of the pole piece coil is spliced with the other end, close to the first clamping head 134 and the second clamping head 135, in this way, and the pole piece coil is convenient to mount.

As shown in connection with fig. 3, the movable roller means 70 is located between the first winding and unwinding assembly 13a and the second winding and unwinding assembly 13 b. The movable roller device 70 comprises two mounting arms 72 and a movable roller 73, wherein the two mounting arms 72 are arranged in a front-back opposite mode 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 the two mounting arms 72, of the movable roller device through two bearing seats. The movable roller 73 is located above the first winding and unwinding assembly 13a and the second winding and unwinding assembly 13b and below the cutter device 50.

Referring to fig. 5, the moving device 30 includes a frame 32 above the winding and unwinding device 10, a horizontal movement driving assembly, two mounting plates 353 disposed opposite to each other in front and rear, and a vertical movement driving assembly. The two mounting plates 353 are slidably coupled to the frame 32 and a horizontal movement drive assembly is used to drive 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. The unwind apparatus 10 is positioned between four support columns 322.

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 includes a servo motor 332 and a speed reducer 333, the servo motor 332 is disposed at the top end of the speed reducer 333, and the speed reducer 333 is disposed at the left side of the top end of the frame 32. The first timing belt unit and the second timing belt unit are provided on the front side and the rear side of the top end of the frame 32, respectively. The first synchronous belt unit and the second synchronous belt unit each 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 couplings 3342. The shaft 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 side inner wall and the rear side inner wall of the frame 32, two transverse plates 354 are respectively arranged on the sides, away from each other, of the two mounting plates 353, 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 coupled 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 disposed opposite to each other in front and back directions, and the linear modules 352 are of a conventional structure. The two linear modules 352 are respectively close to the front side inner wall and the rear side inner wall of the frame 32, the top end and the bottom end 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 sides of the two mounting plates 353 close to each other. 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 couplings 3342, and can drive the two transverse plates 354 to move left and right relative to the frame 32 under the action of the synchronous belt 336 and the driven wheel 335 of the first synchronous belt unit and the synchronous belt 336 and the driven wheel 335 of the second synchronous belt unit, so that the two mounting plates 353 and the two linear modules 352 can be driven to move left and right relative to the frame 32.

The two transverse plates 354 are respectively connected with the front side and the rear side of the top end of the frame 32 in a sliding manner, specifically: the front side, the rear side at frame 32 top are equipped with respectively along the length direction of frame 32 two guide rail 323 that extend, and the bottom of two diaphragm 354 is equipped with two sliders respectively, and two sliders respectively with two guide rail 323 sliding fit and can slide along corresponding guide rail 323 about respectively, two sliders and two guide rail 323 that set up play the guide effect in the in-process that diaphragm 354 moves about relative frame 32 about.

The fixed roller device 80 corresponds to an intermediate 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 disposed at the front side and the rear side of the frame 32, the fixed roller 83 is disposed above the frame 32, and both ends of the fixed roller 83 are respectively disposed at the sides of the two fixed roller mounting arms 82 which are close to each other through two bearing seats.

As shown in 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, that is, the sides of the two linear modules 352 that are 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-right movement of the two linear modules 352 may drive the cutter device 50 to move together.

The cutter device 50 comprises a first fixing plate 52, a compression roller assembly, a left cutter assembly 54a, a right cutter assembly 54b, a second fixing plate 55 and a roller passing assembly which are arranged in a front-back opposite mode. The left press roller 533 of the press roller assembly is used for pressing the pole piece which is unreeled by the first unreeled component 13a to the pole piece which is unreeled by the second unreeled component 13b so as to bond the pole piece which is unreeled by the first unreeled component 13a to the rubberizing of the pole piece which is unreeled by the second unreeled component 13b to the pole piece which is unreeled by the first unreeled component 13a, the right press roller 534 of the press roller assembly is used for bonding the pole piece which is unreeled by the second unreeled component 13b to the rubberizing of the pole piece which is unreeled by the first unreeled component 13a to the pole piece which is unreeled by the first unreeled component 13a, after the pole piece which is unreeled by the first unreeled component 13a is bonded to the rubberizing of the pole piece which is unreeled by the second unreeled component 13b is bonded by the rubberizing of the pole piece which is unreeled by the first unreeled component 13b is bonded by the rubberizing component 54a, so that the pole piece which is unreeled by the first unreeled component 13a is cut off by the second unreeled component is cut off by the rubberizing component 54a, and the second unreeled component is cut off by the rubberizing component which is cut off by the second rolled by the second unreeled component 13 b. In the unreeling process of the pole piece material roll, the roll diameter of the pole piece material roll can be reduced, and the roller passing assembly can ensure that the pole piece material roll is not contacted with the left press roller 533 or the right press roller 534 of the press roller assembly in the unreeling process, so that the abrasion of the left press roller 533 or the right press roller 534 is reduced, and the service life of the left press roller 533 or the right press roller 534 is prolonged.

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

The left cutter assembly 54a and the right cutter assembly 54b are arranged in bilateral symmetry. The pressure roller assembly is located between left cutter assembly 54a and right cutter assembly 54 b. The left and right cutter assemblies 54a and 54b each include a cutter rotation shaft 542, two cutter holders 544, a cutter holder 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 that are close 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 cutter fixing seat 544 is connected with one end of the cutter rotating shaft 542, which is far away from the corresponding first fixing plate 52, the second end of the other cutter fixing seat 544 is connected with and driven by the cutter driving unit to rotate, in this embodiment, the cutter driving unit is preferably a rotary cylinder 543, the second end of the other cutter fixing seat 544 is connected with a cylinder shaft of the rotary cylinder 543, and the rotation of the cutter fixing seat 544 around the axis of the cylinder shaft thereof can be realized by the rotary cylinder 543. The cutter fixing plate 545 is located between the press roller assembly and the two cutter fixing seats 544, and a cutter 546 is disposed at one side of the cutter fixing plate 545 away from the press roller assembly and the cutter 546 is partially protruded from the bottom end of the cutter fixing plate 545. In practical application, the rotary cylinder 543 can drive the cutter fixing seat 544 connected with the cylinder shaft to rotate, so as to drive the cutter fixing plate 545, the cutter 546 and the cutter fixing seat 544 connected with the cutter rotating shaft 542 to rotate together. The cutter rotational axis 542 of the left cutter assembly 54a is on the same side as the cutter driving unit of the right cutter assembly 54b, and the cutter driving unit of the left cutter assembly 54a is on the same side as the cutter rotational axis 542 of the right cutter assembly 54 b.

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

Two sensor mounting seats 572 are respectively arranged at the bottom ends of the two first fixing plates 52, two optical fiber sensors 57 are respectively arranged at the bottom ends of the two sensor mounting seats 572, and the two optical fiber sensors 57 are positioned below the left pressing roller 533. Two fiber optic sensors 57 are used to detect the pole piece roll.

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

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

As shown in fig. 8, two pole piece rolls are first mounted on the first clamping head 134 and the second clamping head 135 of the first winding and unwinding assembly 13a, and the first clamping head 134 and the second clamping head 135 of the second winding and unwinding assembly 13b, and then the first clamping head 134, the second clamping head 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 realize unwinding of the pole piece 100b of the pole piece rolls, 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 winding and unwinding component 13b is consumed, the vertical movement driving component is driven to move leftwards to a preset position by the horizontal movement driving component, so that the cutter device 50 can be driven to move leftwards to the preset position, then the cutter device 50 is driven to move downwards by the vertical movement driving component, when the two optical fiber sensors 57 of the cutter device 50 detect the pole piece material roll 100a on the first winding and unwinding component 13a, the cutter device 50 is stopped to move downwards by the vertical movement driving component, at this time, the cutter device 50 is located at a roll changing position, as shown in fig. 8, at this time, the movable roller 73 and the right press roller 534 are in contact with the pole piece 100b unwound by the second winding and unwinding component 13b, then the first clamping head 134, the second clamping head 135 and the pole piece material roll 100a are driven to rotate in an accelerating manner by the rotation driving unit of the first winding and unwinding component 13a, until the linear speed of the maximum outer diameter of the pole piece material roll 100a is matched with the running speed of the pole piece material roll 100b unwound by the second winding and unwinding component 13b, then the cutter device 534 is driven to rotate clockwise by the two press roller driving units 534 to rotate clockwise to cut off the pole piece material roll to be unwound by the second winding and unwinding component 13b, namely, the pole piece roll component 54 is wound by the cutter component 54 is cut off by the right press the cutter component 54a and the second winding and unwinding component 13b, and the pole piece roll is wound by the cutter component is wound in a anticlockwise direction, and the direction is wound by the cutter component 100b, and the cutter component is wound by the cutter component is wound, and the cutter component is wound. After the completion, 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 clamping head 134, the second clamping head 135 and the pole piece material roll 100a are driven to rotate by the rotating driving module of the first winding and unwinding assembly 13a, so that the pole piece of the pole piece material roll 100a is unwound, the unwound pole piece can sequentially pass through the first roller 563, the second roller 564 and the fixed roller 83, then the two roller mounting plates 562 are driven to rotate 180 degrees in the anticlockwise direction by the two roller driving units, at this time, the first roller 563 is positioned above the second roller 564, and the pole piece unwound by the first winding and unwinding assembly 13a can sequentially pass through the second roller 564, the first roller 563 and the fixed roller 83, as shown in fig. 9. A new roll of pole piece is then mounted onto the first and second jaws 134, 135 of the second unwind assembly 13b to await the next roll change.

When the pole piece material roll 100a on the first winding and unwinding component 13a is consumed, the vertical movement driving component is driven to move right to a preset position by the horizontal movement driving component, so that the cutter device 50 can be driven to move right to the preset position, then the cutter device 50 is driven to move downwards by the vertical movement driving component, when two optical fiber sensors 57 of the cutter device 50 detect new pole piece material rolls on the second winding and unwinding component 13b, the cutter device 50 is stopped to move downwards by the vertical movement driving component, at this time, the cutter device 50 is located at a roll changing position, at this time, the movable roller 73 and the left press roller 533 are in contact with a pole piece unwound by the first winding and unwinding component 13a, then the first chuck 134, the second chuck 134 and the new pole piece material roll are driven to rotate in an accelerating manner by the rotary driving unit of the second winding and unwinding component 13b until the linear speed of the maximum outer diameter of the new pole piece material roll matches with the running speed of the pole piece unwound by the first winding and unwinding component 13a, then the left press roller 533 is driven to rotate in a counterclockwise direction by the two press roller driving units to cut off the pole piece material roll wound by the first winding and unwinding component 13a to cut off the pole piece material roll by the left press component 533 along the direction by the left press roller 533 to enable the new pole piece winding and unwinding component 546 to be wound by the first winding and unwinding component 546 b to pass through the first winding and unwinding component 546 b to be wound by the cutter component 54, and the cutter component is wound and the winding and unwinding component is wound by the new pole piece material roll is wound by the winding and rolled to be wound. After the completion, the left compression roller 533 driven by the two compression roller driving units returns, the cutter 546 is driven by the cutter driving unit of the left cutter assembly 54a to return, then the cutter device 50 is driven by the vertical movement driving assembly to move upwards to the initial position, 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 clamping head 134, the second clamping head 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, so that the unwinding of the pole piece of the new pole piece material roll is realized, 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, and at the moment, the second passing roller 564 is positioned above the first passing roller 563, and the unwound pole piece can sequentially pass through the first passing roller 563, the second passing roller 564 and the fixed roller 83. A new roll of pole piece is then mounted onto the first and second jaws 134, 135 of the first unwind assembly 13a to await the next roll change.

The utility model has simple structure, small occupied space and easy installation and debugging, the fixed pole piece material roll is matched with the moving device 30 and the cutter device 50 through the arranged winding and unwinding device 10, the moving device 30 and the cutter device 50, the positions of the first winding and unwinding component 13a and the second winding and unwinding component 13b do not need to be exchanged, the pole piece of the pole piece material roll in operation is pressed onto the standby pole piece material roll through the cutter device 50 to realize the tape connection, and then the pole piece is cut off, so that the reel replacement is finished, the pole piece which is unreeled in the process does not move greatly, and the pole piece can be prevented from being damaged. The size of the coil diameter of the pole piece coil is 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 plays a supporting role on the unreeled pole piece in the reel changing operation process, and is convenient for the cutter device 50 to act.

The winding and unwinding mechanism of the present utility model may also be used as a mechanism for winding and unwinding pole pieces, where the first winding and unwinding component 13a and the second winding and unwinding component 13b are both used for installing an empty reel and winding pole pieces on the empty reel, the first clamping head 134 and the second clamping head 135 are used for installing an empty reel, the installation mode of the empty reel is the same as the mode of installing pole piece material rolls, the left pressing roller 533 of the pressing roller component is used for pressing the pole pieces wound by the first winding and unwinding component 13a onto the empty reel on the second winding and unwinding component 13b so as to bond the pole pieces with the adhesive tape of the empty reel on the second winding and unwinding component 13b, the right pressing roller 534 of the pressing roller assembly is used for pressing the pole piece rolled by the second rolling and unrolling assembly 13b to the empty reel on the first rolling and unrolling assembly 13a so that the pole piece is adhered to the rubberizing of the empty reel on the first rolling and unrolling assembly 13a, when the pole piece rolled by the first rolling and unrolling assembly 13a is adhered to the rubberizing of the empty reel on the second rolling and unrolling assembly 13b, the pole piece rolled by the first rolling and unrolling assembly 13a can be cut off through the left cutter assembly 54a, so that reel replacement is realized, and when the pole piece rolled by the second rolling and unrolling assembly 13b is adhered to the rubberizing of the empty reel on the first rolling and unrolling assembly 13a, the pole piece rolled by the second rolling and unrolling assembly 13b can be cut off through the right cutter assembly 54b, so that reel replacement is realized. Two fiber optic sensors 57 are used to detect an empty spool.

The specific working principle is as follows:

the two empty reels are firstly respectively arranged on a first chuck 134 and a second chuck 135 of a first winding and unwinding assembly 13a and on the first chuck 134 and the second chuck 135 of a second winding and unwinding assembly 13b, and 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 the pole piece, and the wound pole piece can pass through a fixed roller 83, a second passing roller 564 and a first passing roller 563. When the empty reel on the second winding and unwinding component 13b is detected by the two optical fiber sensors 57 of the cutter device 50, the cutter device 50 stops driving the cutter device 50 to move downwards, at the moment, the cutter device 50 is located at the winding and unwinding position, at the moment, the movable roller 73 and the left press roller 533 are in contact with the pole piece wound by the first winding and unwinding component 13a, then the first chuck 134, the second chuck 134 and the empty reel are driven to rotate in an accelerating way by the rotary driving unit of the second winding and unwinding component 13b until the linear speed of the maximum outer diameter of the empty reel is matched with the running speed of the pole piece wound by the first winding and unwinding component 13a, then the left press roller 533 is driven to rotate in the anticlockwise direction by the two press roller driving units to press the pole piece wound by the first winding and unwinding component 13a onto the second winding and unwinding component 13b by the vertical moving driving component 50, at the moment, the movable roller 73 and the left press roller 533 is in contact with the pole piece wound by the first winding and unwinding component 546 is in the clockwise direction by the left press roller 533, and the cutter component 546 is driven by the rotary driving unit of the second winding and unwinding component 13b, namely the cutter component 54 is wound by the left press roller 54 and the left press component is completed. After the completion, the left compression roller 533 driven by the two compression roller driving units returns, the cutter 546 is driven by the cutter driving unit of the left cutter assembly 54a to return, then the cutter device 50 is driven by the vertical movement driving assembly to move upwards to the initial position, 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 clamping head 134, the second clamping head 135 and the empty winding drum are driven by the rotation driving module of the second winding and unwinding assembly 13b to rotate, so as to realize the winding of the pole piece, the wound 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 the moment, the second passing roller 564 is positioned above the first passing roller 563, and the pole piece wound by the second winding and unwinding assembly 13b can sequentially pass through the first passing roller 563, the second passing roller and the fixed roller 564. A new empty spool is then mounted onto the first and second jaws 134, 135 of the first unwind assembly 13a to await the next winding.

When the empty reel on the second winding and unwinding component 13b is fully wound with the pole piece, the vertical movement driving component is driven by the horizontal movement driving component to move leftwards to a preset position, so that the cutter device 50 can be driven to move leftwards to the preset position, then the cutter device 50 is driven by the vertical movement driving component to move downwards, when the two optical fiber sensors 57 of the cutter device 50 detect a new empty reel on the first winding and unwinding component 13a, the cutter device 50 is stopped to move downwards by the vertical movement driving component, at the moment, the cutter device 50 is located at a reel changing position, at the moment, the movable roller 73 and the right press roller 534 are in contact with the pole piece wound by the second winding and unwinding component 13b, then the first clamping head 134, the second clamping head 134 and the new empty reel are driven by the rotary driving component of the first winding and unwinding component 13a, the line speed of the new empty reel is matched with the running speed of the pole piece wound by the second winding and unwinding component 13b, then the cutter device is driven by the two press roller driving components 534 to rotate clockwise to press the pole piece on the first winding and unwinding component 13b, at the moment, the new winding and unwinding component 546 b is cut off by the right press roller 534, namely, the new winding and unwinding component 546 is wound by the cutter component is driven by the right press roller driving component and the cutter component 546 to rotate anticlockwise, and the second winding component is wound by the second winding and the pole piece is wound by the cutter component, the new winding and the new winding component is wound by the new winding and the pole piece, the winding component 13b, and the new winding component is wound by the winding component, and the new winding component is wound. After the completion, drive right compression roller 534 return through two compression roller drive units, drive cutter 546 return through the cutter drive unit of right cutter subassembly 54b, then drive cutters 50 through vertical movement drive assembly and upwards move to initial position, then drive vertical movement drive assembly right through horizontal movement drive assembly and move to initial position, thereby can drive cutters 50 to right and move to initial position, then drive first chuck 134, second chuck 135 and new empty reel rotation through the rotation drive module of first receipts and unreels subassembly 13a, in order to realize the rolling of pole piece, the pole piece of rolling can pass through first roller 563, second roller 564, fixed roller 83 in proper order, then drive two roller mounting plates 562 through two roller drive units and rotate 180 degrees along anticlockwise, first roller 563 is located the top of first roller 563 this moment, the pole piece of rolling through first receipts unreels subassembly 13a can pass through second roller 564, first roller 563 in proper order. A new empty spool is then mounted onto the first and second jaws 134, 135 of the second unwind assembly 13b to await the next winding.

Second embodiment

Referring to fig. 10 and 11, the same parts of the present embodiment as those of the first embodiment are not repeated herein, 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 above the winding and unwinding device 10, a horizontal movement driving component, two mounting plates 353 disposed opposite to each other, a first supporting roller 382 and a second supporting roller 383, where the two mounting plates 353 are slidably connected to the frame 32, and the horizontal movement driving component is used to drive 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 will not be described again.

Specifically, the two mounting plates 353 are respectively located in the frame 32, and the top ends and the bottom ends of the two mounting plates 353 are respectively located above and below the frame 32. The two mounting plates 353 are adjacent to the front and rear inner walls of the frame 32, respectively. 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 to 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 to the timing belt 336 (not shown in fig. 12) of the first timing belt unit and the timing belt 336 (not shown in fig. 12) of the second timing 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 couplings 3342, and can drive the two connecting plates 373 to move left and right relative to the frame 32 under the action of the synchronous belt 336 and the driven wheel 335 of the first synchronous belt unit and the synchronous belt 336 and the driven wheel 335 of the second synchronous belt unit, so as to drive the two mounting plates 353 to move left and right relative to the frame 32.

The top ends of the two mounting plates 353 are respectively connected with the frame 32 in a sliding manner through the two connecting plates 373, specifically, 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 connecting plates 373 are respectively provided with two sliding blocks, the two sliding blocks are respectively in sliding fit with the two guide rails 323, accordingly, the two sliding blocks can slide left and right along the two guide rails 323, and the two sliding blocks and the two guide rails 323 are arranged to play a guiding role in the process that the two mounting plates 353 move left and right relative to the frame 32.

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 one side of the two vertical plates 374, which is close to each other, 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 connection plates 373 can drive the two vertical plates 374, the first support roller 382 and the second support roller 383 to move left and right relative to the frame 32.

As shown in connection with fig. 13-15, the cutter device 50 is positioned above the unwind device 50 and between two mounting plates 353.

Specifically, cutter device 50 includes a left cutter assembly 52a, a right cutter assembly 52b, a left cutter drive assembly 55a, and a right cutter drive assembly 55b. The left cutter assembly 52a and the right cutter assembly 52b are disposed between the two mounting plates 353 and are disposed in bilateral symmetry. The left cutter driving assembly 55a and the right cutter driving assembly 55b are respectively disposed on the sides of the two mounting plates 353 away from each other, 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 may move the left cutter assembly 52a, the right cutter assembly 52b, the left cutter drive assembly 55a, and the right cutter drive assembly 55b together. The left cutter assembly 52a is used for compressing the pole piece unreeled by the first unreeled winding and unreeling assembly 13a to the pole piece material roll on the second unreeled winding and unreeled winding assembly 13b so that the pole piece unreeled by the first unreeled winding and unreeled winding assembly 13a is adhered to the rubberizing of the pole piece material roll on the second unreeled winding and unreeled winding assembly 13b, and the pole piece unreeled by the first unreeled winding and unreeled winding assembly 13a is cut after being adhered, so that reel replacement is realized. The right cutter assembly 52b is used for compressing the pole piece unreeled by the second unreeled winding assembly 13b to the pole piece material roll on the first unreeled winding assembly 13a so that the pole piece unreeled by the second unreeled winding assembly 13b is adhered to the rubberizing of the pole piece material roll on the first unreeled winding assembly 13a, and the pole piece unreeled by the second unreeled winding assembly 13b is cut after being adhered, so that reel replacement is realized.

The structures of the left cutter assembly 52a and the right cutter assembly 52b are the same, 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 includes two swing arm shafts 522, two swing arms 523, a first movable roller 524, a pressing roller 525, two pressing roller driving units, a second movable roller 527, and a cutter module. The first movable roller 524, the compression roller 525, the cutter module and the second movable roller 527 are sequentially arranged along the 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 rotatably disposed on the sides of the two mounting plates 353, respectively, and specifically, the sides of the two mounting plates 353, respectively, are provided with two mounting holes, and the first ends of the two swing arm rotating shafts 522 are rotatably disposed in the mounting holes of the two mounting plates 353 through bearings, respectively.

Two ends of the first movable roller 524 are respectively connected with 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 extend in a direction away from the two mounting plates 353 and protrude out of the two mounting plates 353. One of the swing arms 523 is located above the first clamp 134 and the other swing arm 523 is located above the second clamp 135. The lengths of the first movable roller 524, the compression 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, both swing arms are V-shaped swing arms.

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

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 press roller 524 are respectively connected with the first ends of the two press roller swing arms 5252, the second ends of the two press roller swing arms 5252 are respectively arranged on the sides of the two swing arms 523, which are close to each other, specifically, two press roller swing arm connecting shafts 5253 are respectively arranged on the sides of the two swing arms 523, and the second ends of the two press roller swing arms 5252 are respectively sleeved on the peripheries of the two press roller swing arm connecting shafts 5253 and can rotate relative to the corresponding press roller swing arm connecting shafts 5253. The two press roller driving units are respectively used for driving the two press roller swing arms 5252 to rotate relative to the two swing arms 523, the press roller driving units are preferably air 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 on one side, close to the two swing arms 523, of the cross beam 5232, the two air cylinders 5254 are respectively arranged at two ends of the cross beam 5232, the cross beam 5232 is located between the first movable roller 524 and the two press roller swing arm connecting shafts 5253, and the two press roller swing arm connecting shafts 5253 are located between the cross beam 5232 and the press rollers 525. The two cylinders 5254 are obliquely arranged relative to the cross beam 5232 (see fig. 15), the cylinder shafts of the two cylinders 5254 are respectively connected with the second ends of the two press roller swing arms 5252, and the cylinder shafts of the two cylinders 5254 stretch and retract relative to the cross beam 5232 along the oblique direction, so that the two press roller swing arms 5252 can be driven to rotate relative to the two swing arms 523 around the axis of the two press roller swing arm connecting shafts 5253, and the press roller 525 can rotate along with the two press roller swing arms 5252.

The corner of two swing arms 523 is equipped with two inductor mount pad 5292 respectively, and two inductor mount pad 5292 are located between two swing arms 523, and two inductor mount pad 5292's bottom is protruding in two swing arms 523's bottom respectively and is equipped with two optic fibre inductors 529 respectively, and two optic fibre inductors 529 are the relative setting in front and back, and two optic fibre inductors 529 are used for detecting the pole piece material and roll.

The cutter module comprises a cutter rotating shaft 5262, two cutter fixing seats 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, which are close to each other. The cutter shaft 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 rotation shaft 5262 of the left cutter assembly 52a and the cutter driving unit of the right cutter assembly 52b are located at the same side, and the cutter driving unit of the left cutter assembly 52a and the cutter rotation shaft 5262 of the right cutter assembly 52b are located at the same side.

The first ends of the two cutter fixing bases 5264 are respectively disposed at two ends of the cutter fixing plate 5265, wherein the second end of one cutter fixing base 5264 is connected with one end of the cutter rotating shaft 5262, which is close to the cutter driving unit, and the second end of the other cutter fixing base 5264 is connected with the cutter driving unit. Cutter fixing plate 5265 is located between compression roller 525 and two cutter fixing bases 5264, and cutter 5266 is set up in the side of cutter fixing plate 5265 that keeps away from compression roller 525 and cutter 5266 part protrusion in the bottom of cutter fixing plate 5265, and 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 cutter rotating shaft 5262, the cutter fixing plate 5265 and the cutter 5266 can be driven to rotate together.

A cutter guard 5267 is provided between the cutter fixing plate 5265 and the pressing roller 525, and both ends of the cutter guard 5267 are respectively provided at one side of the two swing arms 523 which are close to each other. The cutter guard 5267 protects the cutters 5266.

A dust collection box 528 is arranged above the cutter module, and two ends of the dust collection box 528 are respectively arranged on one side of the two swing arms 523, which are close to each other. The top of dust absorption box 528 is equipped with vacuum connection, and vacuum connection is used for being connected with evacuating mechanism, and the bottom of dust absorption box 528 is equipped with the suction port that corresponds with the cutter module, through carrying out evacuating to the suction port of dust absorption box 528 to can absorb the piece that forms after cutting off the pole piece, dust etc. through the suction port.

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 arranged on one side of the corresponding mounting plate 353 far away from the other mounting plate 353, a first end of one swing arm rotating shaft 522 of the left cutter assembly 52a is connected with an output end of the first speed reducer 553, and 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, and the rotation of the swing arm rotating shaft 522 can drive the first swing roller 524 and the other swing arm rotating shaft 522 to rotate, so that the two swing arms 523 can drive the two swing arms 523 to rotate relative to the two mounting plates 353 around the axes of the two swing arm rotating shafts 522, and the pressing roller 525, the cutter module, the second swing roller 527, the dust collection box 528 and the two optical fiber sensors 529 can rotate along 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 driving assembly 55b includes a second driving motor 554 and a second speed reducer 555, and the second driving motor 554 is 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 arranged on one side, far away from the other mounting plate 353, of the corresponding mounting plate 353, the first end of one swing arm rotating shaft 522 of the right cutter assembly 52b is connected with the output end of the second speed reducer 555, and in practical application, the second driving motor 554 can 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, and the rotation of the swing arm rotating shaft 522 can drive the first swing roller 524 and the other swing arm rotating shaft 522 to rotate, so that the two swing arms 523 can drive the two mounting plates 353 to rotate around the axes of the two swing arm rotating shafts 522, and the pressing roller 525, the cutter module, the second swing roller 527, the dust collection box 528 and the two optical fiber sensors 529 can rotate along with the two swing arms 523, so that the right cutter assembly 52b can be driven to rotate relative to the two mounting plates 353 through the right cutter driving assembly 55 b.

Through the above-mentioned structure, the theory of operation of this embodiment is:

The two pole piece material rolls are firstly 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 pole piece material rolls are driven to rotate by a rotation driving module of the second winding and unwinding assembly 13b, so that the pole piece 100b of the pole piece material rolls is unwound, and the unwound pole piece 100b can sequentially pass through a first movable roller 524, a second supporting 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 component 13b is consumed, the right cutter component 52b is driven by the right cutter driving component 55b to rotate to a preset position in the clockwise direction, at this time, the second movable roller 527 and the compression roller 525 of the right cutter component 52b are contacted with the pole piece 100b of the pole piece material roll on the second winding and unwinding component 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 component 13b is prevented from being broken, then the two mounting plates 353 are driven by the horizontal movement driving component to move leftwards relative to the frame 32, so that the left cutter component 52a and the right cutter component 52b can be driven to move leftwards relative to the frame 32, when the two optical fiber sensors 529 of the right cutter component 52b detect the pole piece material roll 100a on the first winding and unwinding component 13a, the two mounting plates 353 are stopped from moving horizontally, so that the left cutter component 52a and the right cutter component 52b are stopped from moving leftwards, at this time, the right cutter assembly 52b reaches the reel change position, as shown in fig. 16, and then the first clamping head 134, the second clamping head 135 and the pole piece reel 100a are driven to rotate with acceleration by the rotation driving module of the first reel assembly 13a until the linear speed of the maximum outer diameter of the pole piece reel 100a on the first reel assembly 13a is matched with the running speed of the pole piece 100b of the pole piece reel on the second reel assembly 13b, and then the pressing roller 525 is driven to rotate clockwise by the two pressing roller driving units of the right cutter assembly 52b to press the pole piece 100b of the pole piece reel on the second reel assembly 13b to the pole piece reel 100a of the first reel assembly 13a by the pressing roller 525, so that the pole piece 100b of the pole piece reel on the second reel assembly 13b is adhered to the adhesive tape of the pole piece reel 100a on the first reel assembly 13a, then, the cutter 5266 is driven by the cutter driving unit to rotate in the counterclockwise direction so as to cut off the pole piece 100b of the pole piece material roll on the second winding and unwinding assembly 13b by the cutter 5266, and thus the roll replacement is completed. After 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, the right cutter assembly 52b is driven to rotate in the anticlockwise direction by the right cutter driving assembly 55b to return to the initial position, 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, the first clamping head 134, the second clamping head 135 and the pole piece coil 100a are driven to rotate by the rotation driving module of the first winding and unwinding assembly 13a so as to realize unwinding of the pole piece coil 100a, and then a new pole piece coil is mounted on the first clamping head 134 and the second clamping head 135 of the second winding and unwinding assembly 13b to wait for next reel change.

When the pole piece of the pole piece roll 100a on the first winding and unwinding component 13a is consumed, the left cutter component 52a is driven by the left cutter driving component 55a to rotate to a preset position in the anticlockwise direction, at this time, the second movable roller 527 of the left cutter component 52a contacts with the pole piece of the pole piece roll 100a on the first winding and unwinding component 13a, then the two mounting plates 353 are driven by the horizontal movement driving component to move rightward relative to the frame 32, so that the left cutter component 52a and the right cutter component 52b can be driven to move rightward, when the two optical fiber sensors 529 of the left cutter component 52a detect a new pole piece roll on the second winding and unwinding component 13b, the two mounting plates 353 are stopped being driven by the horizontal movement driving component, so that the left cutter component 52a and the right cutter component 52b stop moving rightward, at this time, the left cutter component 52a reaches the roll changing position, the first clamping head 134, the second clamping head 135 and the new pole piece roll are driven to rotate in an accelerating way through the rotation driving module of the second winding and unwinding assembly 13b until the linear speed of the maximum outer diameter of the new pole piece roll on the second winding and unwinding assembly 13b is matched with the running speed of the pole piece roll 100a on the first winding and unwinding assembly 13a, then the pressing roller 525 is driven to rotate in the anticlockwise direction through the two pressing roller driving units of the left cutter assembly 52a so as to press the pole piece of the pole piece roll 100a on the first winding and unwinding assembly 13a to the new pole piece roll on the second winding and unwinding assembly 13b through the pressing roller 525, so that the pole piece of the pole piece roll 100a on the first winding and unwinding assembly 13a is adhered with the rubberizing of the new pole piece roll on the second winding and unwinding assembly 13b, then the pole piece of the pole piece roll 100a on the first winding and unwinding assembly 13a is cut off through the cutter 5266 by driving the cutter 5266 of the left cutter assembly 52a to rotate in the clockwise direction, thus, the reel change is completed. After completion, 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, the left cutter assembly 52a is driven to rotate clockwise by the left cutter driving assembly 55a to return to the initial position, 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, the first clamping head 134, the second clamping head 135 and the new pole piece roll are driven to rotate by the rotation driving module of the second winding and unwinding assembly 13b to realize unwinding of the pole piece of the new pole piece roll, and then the new pole piece roll is mounted on the first clamping head 134 and the second clamping head 135 of the first winding and unwinding assembly 13a to wait for next reel change.

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

The winding and unwinding mechanism of this embodiment may also be used as a mechanism for winding and unwinding pole pieces, where the first winding and unwinding component 13a and the second winding and unwinding component 13b are both used for installing an empty reel and winding the pole pieces on the empty reel, the first clamping head 134 and the second clamping head 135 are used for installing the empty reel, the installation mode of the empty reel is the same as the aforementioned mode of installing pole piece material rolls, and the left cutter component 52a is used for compressing the pole pieces wound by the first winding and unwinding component 13a to the empty reel on the second winding and unwinding component 13b so that the pole pieces wound by the first winding and unwinding component 13a are adhered to the adhesive tape of the empty reel on the second winding and unwinding component 13b, and cutting off the pole pieces wound by the first winding and unwinding component 13a after adhering, thereby realizing reel change. The right cutter assembly 52b is used for pressing the pole piece rolled by the second rolling and unrolling assembly 13b to the empty reel on the first rolling and unrolling assembly 13a so that the pole piece rolled by the second rolling and unrolling assembly 13b is adhered to the rubberizing of the empty reel on the first rolling and unrolling assembly 13a, and the pole piece rolled by the second rolling and unrolling assembly 13b is cut off after the rubberizing, so that reel replacement is realized. Two fiber optic sensors 529 are used to detect an empty spool.

The specific working principle is as follows:

the two empty reels are firstly respectively arranged on the first clamping head 134 and the second clamping head 135 of the first winding and unwinding assembly 13a and the first clamping head 134 and the second clamping head 135 of the second winding and unwinding assembly 13b, and then the first clamping head 134, the second clamping head 135 and the empty reels are driven to rotate by a rotation driving module of the second winding and unwinding assembly 13b so as to realize winding of the pole piece, and the pole piece fixed roller 83, the second supporting roller 383 and the first movable roller 524 of the right cutter assembly 52b are wound. When the empty reel on the second winding and unwinding component 13b is fully wound with the pole piece, the right cutter driving component 55b drives the right cutter component 52b to rotate to a preset position in the clockwise direction, at this time, the second movable roller 527 and the compression roller 525 of the right cutter component 52b are in contact with the pole piece wound on the second winding and unwinding component 13b, and then the two mounting plates 353 are driven to move leftwards relative to the frame 32 by the horizontal movement driving component, so that the left cutter component 52a and the right cutter component 52b can be driven to move leftwards relative to the frame 32, when the two optical fiber sensors 529 of the right cutter component 52b detect the empty reel on the first winding and unwinding component 13a, the two mounting plates 353 are driven to move by the horizontal movement driving component, so that the left cutter component 52a and the right cutter component 52b stop moving leftwards, at this time, the right cutter component 52b reaches the winding and unwinding position, then the first clamping head 134 is driven by the rotation driving component 13a, the second clamping head 135 and the empty reel are accelerated to rotate until the wire speed of the maximum outer diameter of the reel on the first winding and unwinding component 13a is driven to move leftwards relative to the frame 32, when the two optical fiber sensors 529 of the right cutter component 52b detect the empty reel on the first winding and unwinding component 13a, the two mounting plates 353 are driven to move leftwards by the horizontal movement driving component 52b, so that the left cutter component 52a and the right cutter component 52b stops moving leftwards, the right cutter component 52b reaches the winding and unwinding position, then the winding and the second winding and winding position is accelerated by the second winding and winding component is driven by the second winding and winding component, the second clamping component, and winding roll is driven. After the completion, the two press roller driving units of the right cutter assembly 52b drive the press roller 525 to return, the cutter driving unit drives the cutter 5266 to return, the right cutter assembly 52b is driven by the right cutter driving assembly 55b to rotate in the anticlockwise direction to return to the initial position, the left cutter assembly 52a and the right cutter assembly 52b are driven by the horizontal movement driving assembly to move rightwards to the initial position, the first clamping head 134, the second clamping head 135 and the empty winding drum are driven by the rotation driving module of the first winding and unwinding assembly 13a to rotate so as to realize the winding of the polar plate, and then a new empty winding drum is mounted on the first clamping head 134 and the second clamping head 135 of the second winding and unwinding assembly 13b to wait for the next winding.

When the empty reel on the first winding and unwinding component 13a is fully wound with the pole piece, the left cutter component 52a is driven by the left cutter driving component 55a to rotate to a preset position in the anticlockwise direction, at this time, the second movable roller 527 of the left cutter component 52a is in contact with the pole piece wound by the first winding and unwinding component 13a, and then the two mounting plates 353 are driven by the horizontal movement driving component to move rightwards relative to the frame 32, so that the left cutter component 52a and the right cutter component 52b can be driven to move rightwards, when the two optical fiber sensors 529 of the left cutter component 52a detect a new empty reel on the second winding and unwinding component 13b, the two mounting plates 353 are driven by the horizontal movement driving component to stop moving, so that the left cutter component 52a and the right cutter component 52b stop moving rightwards, at this time, the left cutter component 52a reaches the winding and unwinding position, then the first clamping head 134 is driven by the rotation driving component of the second winding and unwinding component 13b, the second clamping head 135 and the new empty reel are accelerated to rotate until the maximum outer diameter of the new reel on the second winding and unwinding component 13b is driven by the horizontal movement driving component 52b, and then the second winding and unwinding component 525 a is driven by the second winding and unwinding component 525 a is completed, the pole piece is wound by the second winding and unwinding component 525 a is driven by the second winding and unwinding component 525 a compression roller component is driven by the second winding and is completed, and the second winding and the winding and winding roll component is cut off the second winding and winding component is wound by the winding and the new winding component is wound. After completion, 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, the left cutter assembly 52a is driven to rotate clockwise by the left cutter driving assembly 55a to return to the initial position, 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, the first clamping head 134, the second clamping head 135 and the new empty winding drum are driven to rotate by the rotation driving module of the second winding and unwinding assembly 13b, so that the winding of the polar plate is realized, and then the new empty winding drum is installed on the first clamping head 134 and the second clamping head 135 of the first winding and unwinding assembly 13a to wait for next reel change.

The utility model also provides a coating machine which comprises the winding and unwinding mechanism.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims (16)

1. The 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 frame, a first winding and unwinding assembly and a second winding and unwinding assembly, wherein the first winding and unwinding assembly and the second winding and unwinding assembly are arranged on the frame;

the moving device comprises a frame, a horizontal movement driving assembly and two mounting plates, wherein the frame is positioned above the winding and unwinding device, the mounting plates are oppositely arranged front and back, the two mounting plates are respectively connected with the frame in a sliding manner, 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 located above the winding and unwinding device and arranged between the two mounting plates.

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

The first winding and unwinding assembly and the second winding and unwinding assembly are respectively arranged on the two upright post groups;

the first winding and unwinding assembly and the second winding and unwinding assembly comprise a first rotating shaft, a second rotating shaft, a first chuck, a second chuck and a rotation driving module, the first rotating shaft and the second rotating shaft are oppositely arranged front and back, the first rotating shaft is arranged in a through hole of the first upright, a first end and a second end of the first rotating shaft are respectively protruded out of the outer side and the inner side of the first upright, the first rotating shaft can rotate relative to the first upright, the second rotating shaft is arranged in the through hole of the second upright, a first end and a second end of the second rotating shaft are respectively protruded out of the outer side and the inner side of the second upright, the second rotating shaft can rotate relative to the second upright, the first chuck and the second chuck are oppositely arranged front and back, the first chuck is arranged at a second end of the first rotating shaft, the second chuck is arranged at a second end of the second rotating shaft, and the rotation driving module is used for driving the first rotating shaft to rotate relative to the first upright.

3. The winding and unwinding mechanism according to 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, the first winding and unwinding assembly and the second winding and unwinding assembly each comprise 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 at the left side of the top end of the frame, the first synchronous belt unit and the second synchronous belt unit are respectively arranged at 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 a driving wheel, a driven wheel and synchronous belts sleeved on the peripheries of the driving wheel and the driven wheel, the driving wheel and the driven wheel are respectively close to the left end and the right end of the frame, the driving wheel of the first synchronous belt unit and the driving wheel of the second synchronous belt unit are respectively connected with the horizontal movement driving unit through two couplings, the two mounting plates are respectively arranged in the frame, the top ends and the bottom ends of the two mounting plates are respectively arranged above and below the frame, the two mounting plates are respectively close to the front inner wall and the rear inner wall of the frame, and the two mounting plates are respectively connected with the synchronous belts of the first synchronous belt unit and 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 mode, the two linear modules are respectively arranged on one side, close to the two mounting plates, of the two mounting plates, and the top end and the bottom end of each linear module 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 a press roller assembly, the two first fixing plates are arranged in front-back opposite directions, the two first fixing plates are respectively arranged between driving sides of the two linear modules, the two linear modules are respectively used for driving the two first fixing plates to move up and down, the press roller assembly comprises two press roller mounting plates, a left press roller, a right press roller and two press roller driving units, the press roller mounting plates are arranged in front-back opposite directions, two press roller rotating shafts are respectively arranged on one sides of the two first fixing plates, which are close to each other, one ends, far away from the corresponding first fixing plates, of the two press roller rotating shafts are respectively rotatably arranged in mounting holes of the two press roller mounting plates, the left press roller and the right press roller are arranged between the two press roller mounting plates and are arranged in left-right parallel, the two press roller rotating shafts are respectively arranged on one sides, which are close to each other, of the two first fixing plates, and are respectively used for driving the two press roller rotating shafts around axes of the two press roller mounting plates.

7. The winding and unwinding mechanism according to 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 symmetrically arranged left and right, the press roller assembly is located between the left cutter assembly and the right cutter assembly, the left cutter assembly and the right cutter assembly comprise 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 one side, close to the two first fixing plates, of the cutter rotating shaft, the first ends of the two cutter fixing seats are respectively arranged on two ends of the cutter fixing plates, the second end of one cutter fixing seat is connected with the cutter rotating shaft, the second end of the other cutter fixing seat is connected with the cutter driving unit and driven by the cutter driving unit to rotate, the cutter fixing plate is located between the press roller assembly and the two cutter fixing seats, and the cutter fixing plate is arranged on one side, far away from the press roller assembly, of the cutter fixing plate is partially protruded out of the bottom end of the 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 arranged at the top ends of the two first fixing plates and correspond to the pressing roller assembly, the roller passing assembly comprises two roller passing rotating shafts, two roller passing mounting plates, a first roller passing, a second roller passing and two roller passing driving units, the two roller passing mounting plates are oppositely arranged front and back, the first ends of the two roller passing rotating shafts are respectively rotatably arranged at one sides of the two second fixing plates, which are close to each other, the second ends of the two roller passing rotating shafts are respectively arranged at one sides of the two roller passing mounting plates, which are far away from each other, the first roller passing rotating shaft is positioned below the second roller passing, the two roller passing rotating shafts are positioned between the first roller passing rotating shafts and the second roller passing rotating shafts, 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 according to claim 6, wherein two optical fiber sensors are respectively disposed 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 roller device located between the first winding and unwinding assembly and the second winding and unwinding assembly, the roller device comprising two mounting arms and a roller, the two mounting arms being disposed in front-to-back opposition and on the frame, the roller being rotatably disposed between the two mounting arms, the roller being 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, wherein the left cutter assembly and the right cutter assembly are 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 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 according to claim 11, wherein the left cutter assembly and the right cutter assembly each comprise two swing arm rotating shafts, two swing arms, a first movable roller, a press roller and two press roller driving units, first ends of the two swing arm rotating shafts are rotatably arranged on one sides of the two mounting plates, which are close to each other, respectively, first ends of the two swing arms are connected with second ends of the two swing arm rotating shafts, the second ends of the two swing arms extend in directions away from the two mounting plates, two ends of the first movable roller are connected with second ends of the two swing arm rotating shafts, the press roller is located between the two swing arms, two ends of the press roller are connected with first ends of the two press roller swing arms, second ends of the two press roller swing arms are arranged on one sides of the two swing arms, which are close to each other, respectively, and the two press roller driving units are used for driving the two press rollers to rotate relatively to the two press rollers; 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 to rotate relative to the swing arm rotating shaft, 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 to rotate relative to the swing arm rotating shaft.

13. The unwind and wind mechanism of claim 12 wherein said left and right cutter assemblies each comprise a second movable roller disposed between the second ends of said two swing arms.

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

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

16. A coater comprising a wind-up and unwind mechanism as claimed in any of claims 1 to 15.

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