CN218975529U

CN218975529U - Shaftless turret winding and unwinding mechanism and lithium battery manufacturing equipment

Info

Publication number: CN218975529U
Application number: CN202223015677.1U
Authority: CN
Inventors: 朱高稳; 杨林林; 李伟浩; 郑海岸
Original assignee: Guangdong Jiatuo Automation Technology Co ltd
Current assignee: Guangdong Jiatuo Automation Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-05-05
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a shaftless turret winding and unwinding mechanism and lithium battery manufacturing equipment, wherein the shaftless turret winding and unwinding mechanism comprises a turret device, a horizontal moving device and a cutter swing arm device; the turret device comprises a base, a first winding and unwinding assembly, a second winding and unwinding assembly, a first rotation driving unit and a second rotation driving unit; the horizontal moving device comprises a fixed frame positioned above the turret device, two mounting plates which are arranged in a front-back opposite way and a moving driving assembly; the cutter swing arm device is located above the turret device and comprises a first cutter swing arm assembly, a second cutter swing arm assembly, a first cutter swing arm driving assembly and a second cutter swing arm driving assembly. The utility model can avoid damaging the pole piece in the process of changing the coil, and improves the production efficiency.

Description

Shaftless turret winding and unwinding mechanism and lithium battery manufacturing equipment

Technical Field

The utility model relates to the field of lithium battery manufacturing equipment, in particular to a shaftless turret winding and unwinding mechanism and lithium battery manufacturing equipment.

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 of the prior art, the utility model provides the shaftless turret winding and unwinding mechanism and the lithium battery manufacturing equipment, which can avoid damaging the pole piece in the winding replacement 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 shaftless turret winding and unwinding mechanism, which comprises a turret device, a horizontal moving device and a cutter swing arm device; the turret device comprises a base, a first winding and unwinding assembly, a second winding and unwinding assembly, a first rotation driving unit and a second rotation driving unit, wherein the first winding and unwinding assembly and the second winding and unwinding assembly are respectively arranged at the top end of the base and are symmetrically arranged left and right, the first rotation driving unit is used for driving the first winding and unwinding assembly to rotate relative to the base, and the second rotation driving unit is used for driving the second winding and unwinding assembly to rotate relative to the base; the horizontal moving device comprises a fixed frame, two mounting plates and a moving driving assembly, wherein the fixed frame is arranged above the turret device, the two mounting plates are arranged in a front-back opposite mode, the two mounting plates are respectively connected with the fixed frame in a sliding mode, and the moving driving assembly is used for driving the two mounting plates to move left and right relative to the fixed frame; the cutter swing arm device is located above the turret device and comprises a first cutter swing arm assembly, a second cutter swing arm assembly, a first cutter swing arm driving assembly and a second cutter swing arm driving assembly, wherein the first cutter swing arm assembly and the second cutter swing arm assembly are arranged between two mounting plates and are arranged in bilateral symmetry, and the first cutter swing arm driving assembly and the second cutter swing arm driving assembly are respectively arranged on one sides, away from each other, of the two mounting plates and are respectively used for driving the first cutter swing arm assembly and the second cutter swing arm assembly to rotate relative to the two mounting plates.

As the preferable technical scheme, the first winding and unwinding assembly and the second winding and unwinding assembly respectively comprise a rotating shaft, two connecting arms, two chucks and a chuck driving unit, wherein the rotating shaft is rotatably arranged at the top end of the base, the connecting arms are arranged in a front-back opposite mode, the chucks are arranged in a front-back opposite mode, the first rotating driving unit is used for driving the rotating shaft of the first winding and unwinding assembly to rotate relative to the base, the second rotating driving unit is used for driving the rotating shaft of the second winding and unwinding assembly to rotate relative to the base, the bottom ends of the two connecting arms are connected with the rotating shaft respectively, one side, close to the top ends of the two connecting arms, of each connecting arm is provided with the two chucks respectively, and the chuck driving unit is used for driving one of the connecting arms corresponding to the chucks to rotate relative to each other.

As a preferable technical scheme, the two connecting arms can move along the rotating shaft in opposite directions or back to back, and the first winding and unwinding assembly and the second winding and unwinding assembly both comprise two moving driving units for driving the two connecting arms to move in opposite directions or back to back.

As an optimized technical scheme, the mobile driving assembly comprises a mobile driving module and two synchronous belt units, wherein the mobile driving module and the two synchronous belt units are arranged at the top end of the fixed frame, the two synchronous belt units are respectively arranged at the front side and the rear side of the top end of the fixed frame, each synchronous belt unit comprises a driving wheel, a driven wheel and a synchronous belt sleeved on the peripheries of the driving wheel and the driven wheel, the driving wheels of the two synchronous belt units are respectively connected with the mobile driving module through two couplers, the two mounting plates are positioned in the fixed frame, the top ends and the bottom ends of the two mounting plates are respectively positioned above and below the fixed frame, the two mounting plates are respectively close to the inner wall of the front side and the inner wall of the rear side of the fixed frame, each mounting plate corresponds to one synchronous belt unit, and each mounting plate is positioned between the driving wheel and the driven wheel of the corresponding synchronous belt unit and is connected with the synchronous belt of the corresponding synchronous belt unit.

As an optimized technical scheme, the first cutter swing arm assembly and the second cutter swing arm assembly comprise two rotating shafts, two cutter swing arms, a first movable roller, a press roller and two press roller driving units; the first ends of the two rotating shafts are respectively and rotatably arranged on one sides of the two mounting plates, which are close to each other, the first ends of the two cutter swing arms are respectively connected with the second ends of the two rotating shafts, the second ends of the two cutter swing arms respectively extend towards the direction away from the two mounting plates, the two ends of the first movable roller are respectively connected with the second ends of the two rotating shafts, the press roller is positioned between the two cutter swing arms, the two ends of the press roller are respectively connected with the first ends of the two press roller swing arms, the second ends of the two press roller swing arms are respectively arranged on one sides of the two cutter swing arms, which are close to each other, and the two press roller driving units are respectively used for driving the two press roller swing arms to rotate relative to the two cutter swing arms; the first cutter swing arm driving assembly is connected with the first end of one of the rotating shafts of the first cutter swing arm assembly and used for driving the rotating shaft to rotate relative to the corresponding mounting plate, and the second cutter swing arm driving assembly is connected with the first end of one of the rotating shafts of the second cutter swing arm assembly and used for driving the rotating shaft to rotate relative to the corresponding mounting plate.

As a preferred technical scheme, the first cutter swing arm assembly and the second cutter swing arm assembly each comprise a second movable roller, and the second movable rollers are arranged between the second ends of the two cutter swing arms.

As the preferable technical scheme, first cutter swing arm subassembly and second cutter swing arm subassembly are all including setting up cutter module between compression roller and the second movable roller, cutter module includes two cutter fixing base, cutter fixed plate, cutter pivot and cutter drive unit set up respectively one side that is close to of two cutter swing arms, the cutter pivot can rotate relative corresponding cutter swing arm, the first end of two cutter fixing base sets up respectively the both ends of cutter fixed plate, one of them cutter fixing base the second end with the cutter pivot is connected, the second end of another cutter fixing base with cutter drive unit is connected and is rotated by this cutter drive unit's drive, the cutter fixed plate is located between compression roller and two cutter fixing base, the cutter setting is in one side of cutter fixed plate and the cutter part protrusion of keeping away from of compression roller in the bottom of cutter fixed plate.

As the preferable technical scheme, a cutter protecting cover is arranged between the cutter fixing plate and the press roller, and two ends of the cutter protecting cover are respectively arranged on one side, close to the two cutter swinging arms, of the cutter protecting cover.

As the preferable technical scheme, the top of cutter module is equipped with the dust absorption box, the both ends of dust absorption box set up respectively two cutter swing arms be close to one side mutually, the top of dust absorption box is equipped with vacuum joint, the bottom of dust absorption box be equipped with the suction opening that the cutter module corresponds.

As a preferable technical scheme, the two cutter swing arms are V-shaped cutter swing arms, and two ends of the press roll correspond to corners of the two cutter swing arms respectively; the corner of two cutter swing arms is equipped with two inductor mount pad respectively, the bottom of two inductor mount pad protrusion respectively in the bottom of two cutter swing arms is equipped with two optic fibre inductors respectively, two optic fibre inductors are relative setting around being.

The second aspect of the utility model also provides lithium battery manufacturing equipment, which comprises the shaftless turret winding and unwinding mechanism.

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 diagram of a shaftless turret winding and unwinding mechanism according to an embodiment of the present utility model;

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

FIG. 3 is a schematic view of the turret apparatus of the shaftless turret unwind and wind-up mechanism of FIG. 1;

FIG. 4 is a schematic view of the first spindle, two first connecting arms, and two first chucks of the turret apparatus of FIG. 3;

FIG. 5 is a schematic view of the turret apparatus of the shaftless turret unwind and wind-up mechanism of FIG. 1;

FIG. 6 is a schematic view of a second spindle, two second connecting arms, and two second chucks of the turret apparatus of FIG. 5;

FIG. 7 is a schematic view of the horizontal moving device, the first fixed roller, the second fixed roller, and the third fixed roller of the shaftless turret winding and unwinding mechanism shown in FIG. 1;

FIG. 8 is a schematic structural view of a cutter swing arm device of the shaftless turret winding and unwinding mechanism of FIG. 1;

FIG. 9 is a schematic view of the second cutter swing arm assembly of the cutter swing arm device of FIG. 8 with the second movable roller removed and the suction box;

figure 10 is a schematic cross-sectional view of a second cutter swing arm assembly of the cutter swing arm device of figure 8;

FIG. 11 is a schematic cross-sectional view of the first and second winding and unwinding assemblies of the shaftless turret winding and unwinding mechanism of FIG. 1 with pole piece rolls mounted respectively;

fig. 12 is a schematic cross-sectional view of the pole piece roll on the first unreeling assembly of the shaftless turret unreeling mechanism of fig. 1 as it reaches the index 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.

Referring to fig. 1 and 2, an embodiment of the utility model provides a shaftless turret winding and unwinding mechanism, which includes a turret device 10, a horizontal moving device 30, a cutter swing arm device 50, a first fixed roller 70, a second fixed roller 80 and a third fixed roller 90.

As shown in fig. 3 to 6, the turret apparatus 10 includes a base, a first winding and unwinding assembly, a second winding and unwinding assembly, a first rotation driving unit 16, and a second rotation driving unit 17. The first winding and unwinding assembly and the second winding and unwinding assembly are respectively arranged at the top end of the base and are arranged in bilateral symmetry. The first winding and unwinding assembly shown in the drawings of this embodiment is in the reel change position. The first winding and unwinding assembly and the second winding and unwinding assembly are respectively used for installing a pole piece material roll and unwinding a pole piece of the pole piece material roll, or are used for installing an empty winding drum and winding the pole piece on the empty winding drum. The first winding and unwinding assembly and the second winding and unwinding assembly can rotate relative to the base respectively. The first rotation driving unit 16 is used for driving the first winding and unwinding assembly to rotate relative to the base, and the second rotation driving unit 17 is used for driving the second winding and unwinding assembly to rotate relative to the base.

Specifically, the base includes two bottom plates 112 disposed opposite to each other in front and back, and two mounting frames 113 disposed opposite to each other in front and back. Two mounting brackets 113 are provided at the top ends of the two bottom plates 112, respectively. A fixed beam is provided between the two mounting frames 113. The number of the fixed beams can be set according to actual conditions. The fixed beams support the two mounts 113.

The first winding and unwinding assembly and the second winding and unwinding assembly are identical in structure and comprise a rotating shaft, two connecting arms, two chucks and a chuck driving unit. For convenience of description, the rotation shaft, the connection arm, the collet, and the collet driving unit of the first winding and unwinding assembly are respectively named as a first rotation shaft 114, a first connection arm 12, a first collet 14, and a first collet driving unit 18, and the rotation shaft, the connection arm, the collet, and the collet driving unit of the second winding and unwinding assembly are respectively named as a second rotation shaft 115, a second connection arm 13, a second collet 15, and a second collet driving unit 19.

The first winding and unwinding assembly comprises a first rotating shaft 114, two first connecting arms 12 arranged in a front-back opposite manner, two first chucks 14 arranged in a front-back opposite manner, a first chuck driving unit 18 and two first moving

driving units

132a and 132b.

The two ends of the first rotating shaft 114 are respectively arranged at the top ends of the two mounting frames 113 through two bearing seats 116. One end of the first shaft 114 is connected with a U-shaped first shaft swing arm 1142, specifically, one end of the first shaft swing arm 1142 is sleeved at one end of the first shaft 114, and an opening end of the first shaft swing arm 1142 extends in a direction away from the first shaft 114. The first rotation driving unit 16 is preferably an oil cylinder, the oil cylinder body of the oil cylinder is arranged in the opening end of the first rotation shaft swing arm 1142, the tail end of the piston rod of the oil cylinder is arranged at the top end of the bottom plate 112 corresponding to the first rotation shaft swing arm 1142 through the fixing block 164, and the oil cylinder is obliquely arranged relative to the bottom plate 112. The piston rod of the oil cylinder stretches and contracts along the inclined direction relative to the bottom plate 112, so that the first pivot swing arm 1142 can be driven to rotate relative to the base. Rotation of the first pivot arm 1142 may rotate the first pivot 114 relative to the base.

The bottom ends of the two first connecting arms 12 are respectively connected with a first rotating shaft 114, two first chucks 14 are respectively arranged on the sides, close to the top ends, of the two first connecting arms 12, the rotation of the first rotating shaft 114 can drive the two first connecting arms 12 to rotate around the axis of the first rotating shaft 114 relative to the base, and the two first chucks 14 can rotate along with the two first connecting arms 12. The two first chucks 14 are rotatable, and the two first chucks 14 are used for mounting pole piece rolls. In practical application, the first ends of the two first chucks 14 (i.e., the ends of the two first chucks 14 that are close to each other) are respectively inserted into two ends of the winding drum of the pole piece material roll, so that the pole piece material roll is mounted through the two first chucks 14. In this embodiment, two mounting holes are respectively provided on the sides of the top ends of the two first connecting arms 12, which are close to each other, and the second ends of the two first chucks 14 are respectively rotatably disposed in the two mounting holes through two bearings, so that the two first chucks 14 can rotate relative to the two first connecting arms 12. The first chuck driving unit 18 is preferably a gear motor, and the gear motor is disposed on one of the first connecting arms 12 and connected to the second end of one of the first chucks 14, so as to drive the first chucks 14 to rotate, and after the pole piece coil is mounted on the two first chucks 14, the gear motor can drive the two first chucks 14 and the pole piece coil to rotate, so that the pole piece of the pole piece coil can be unreeled.

In this embodiment, the bottom ends of the two first connecting arms 12 are slidably connected to the first rotating shaft 114. The two first connecting arms 12 can be moved along the first axis of rotation 114 towards and away from each other. Specifically, the bottom ends of the two first connecting arms 12 are approximately U-shaped and sleeved on the outer periphery of the first rotating shaft 114. Two sliding blocks 1146 are respectively disposed on two inner walls of the bottom end of the first connecting arm 12, two sliding rails 1144 slidably engaged with the two sliding blocks 1146 are respectively disposed on two outer walls of the first rotating shaft 114, and the two first connecting arms 12 can move along the first rotating shaft 114 in opposite directions or back to back directions through the sliding engagement of the sliding blocks 1146 and the sliding rails 1144.

The two first moving driving

units

132a, 132b are respectively used for driving the two first connecting arms 12 to move along the first rotating shaft 114 in opposite directions or back directions, and the opposite directions or back directions of the two first connecting arms 12 can drive the two first chucks 14 to move in opposite directions or back directions. The two first moving driving

units

132a, 132b are located below the first rotating shaft 114 and are distributed left and right. Specifically, the two first moving driving

units

132a and 132b are preferably cylinders, cylinders located at the left, the cylinder bodies of which are disposed on the first rotating shaft 114 through the first connecting blocks 133a (the first connecting blocks 133a correspond to the first connecting arms 12 located at the rear) and the ends of the piston rods of which are disposed at the bottom ends of the first connecting arms 12 located at the front through the second connecting blocks 134 a. The cylinder body of the cylinder located on the right is disposed on the first rotating shaft 114 through a first connecting block 133b (the first connecting block 133b corresponds to the first connecting arm 12 located on the front) and the end of the piston rod of the cylinder is disposed at the bottom end of the first connecting arm 12 located on the rear through a second connecting block 134 b. The piston rods of the two cylinders extend and retract along the axial direction of the first rotating shaft 114, so that the two first connecting arms 12 can be driven to move towards or away from each other. In practical applications, the rotation of the first shaft 114 may drive the two sliders 1146, the two slide rails 1144, and the two first moving driving

units

132a and 132b to rotate together. When a pole piece roll or an empty roll is to be mounted, the two first connecting arms 12 are driven to move back along the first rotating shaft 114 by the two first moving driving

units

132a and 132b respectively, so that the two first clamping heads 14 can be driven to move back, the distance between the two first clamping heads 14 is larger than the length of the roll of the pole piece roll, then one end of the roll of the pole piece roll is spliced with the first end of the first clamping head 14 positioned in front, then the two first connecting arms 12 are driven to move to the initial position by the two first moving driving

units

132a and 132b respectively, so that the two first clamping heads 14 can be driven to move to the initial position in opposite directions, and in the process of the two first clamping heads 14 moving in opposite directions, the first end of the first clamping head 14 positioned behind can be spliced with the other end of the roll of the pole piece roll, so that the pole piece roll is mounted to the two first clamping heads 14, and the installation is convenient.

The second winding and unwinding assembly comprises a second rotating shaft 115, two second connecting arms 13 which are arranged in a front-back opposite mode, two second chucks 15 which are arranged in a front-back opposite mode, a second chuck driving unit 19 and two second

movable driving units

122a and 122b.

Two ends of the second rotating shaft 115 are respectively arranged at the top ends of the two mounting frames 113 through two bearing seats 117. One end of the second rotating shaft 115 is connected with a second rotating shaft swinging arm 1152 in a U shape, specifically, one end of the second rotating shaft swinging arm 1152 is sleeved at one end of the second rotating shaft 115, and an opening end of the second rotating shaft swinging arm 1152 extends towards a direction away from the second rotating shaft 115. The second rotation driving unit 17 is preferably an oil cylinder, the oil cylinder body of the oil cylinder is arranged in the opening end of the second rotation shaft swinging arm 1152, the tail end of the piston rod of the oil cylinder is arranged at the top end of the bottom plate 112 corresponding to the second rotation shaft swinging arm 1152 through the fixing block 174, and the oil cylinder is obliquely arranged relative to the bottom plate 112. The piston rod of the oil cylinder stretches and contracts along the inclined direction relative to the bottom plate 112, so that the second rotating shaft swinging arm 1152 can be driven to rotate relative to the base. Rotation of the second pivot arm 1152 may rotate the second pivot 115 relative to the base.

The bottom ends of the two second connecting arms 13 are respectively connected with the second rotating shaft 115, and each second connecting arm 13 corresponds to one first connecting arm 12 respectively and forms an obtuse angle with the corresponding first connecting arm 12. Two second chucks 15 are respectively arranged on the sides, close to the top ends of the two second connecting arms 13, the rotation of the second rotating shaft 115 can drive the two second connecting arms 13 to rotate around the axis of the second rotating shaft 115 relative to the base, and the two second chucks 15 can rotate along with the two second connecting arms 13. The two second chucks 15 are rotatable relative to the two first connecting arms 13, and the two second chucks 15 are used for mounting pole piece rolls. In practical application, the first ends of the two second chucks 15 (i.e., the ends of the two second chucks 15 that are close to each other) are respectively inserted into two ends of the winding drum of the pole piece material roll, so that the pole piece material roll is mounted through the two second chucks 15. In this embodiment, two mounting holes are respectively provided on the sides of the top ends of the two second connecting arms 13, which are close to each other, and the second ends of the two second chucks 15 are respectively rotatably disposed in the two mounting holes through two bearings, so that the two second chucks 15 can rotate relative to the two second connecting arms 13. The second chuck driving unit 19 is preferably a gear motor, and the gear motor is disposed on one of the second connecting arms 13 and connected to the second end of one of the second chucks 15, and is used for driving the second chuck 15 to rotate relative to the corresponding second connecting arm 13, and after the pole piece coil is mounted on the two second chucks 15, the two second chucks 15 and the pole piece coil can be driven to rotate by the gear motor, so that the pole piece of the pole piece coil can be unreeled.

In this embodiment, the bottom ends of the two second connecting arms 13 are slidably connected to the second rotating shaft 115. The two second connecting arms 13 can move along the second rotation axis 115 towards and away from each other. Specifically, the bottom ends of the two second connecting arms 13 are approximately U-shaped and sleeved on the outer periphery of the second rotating shaft 115. Two sliding blocks 1156 are respectively arranged on the inner walls of the two sides of the bottom end of the second connecting arm 13, two sliding rails 1154 which are in sliding fit with the two sliding blocks 1156 are respectively arranged on the outer walls of the two sides of the second rotating shaft 115, and the two second connecting arms 13 can move along the second rotating shaft 115 in opposite directions or back to back directions through the sliding fit of the sliding blocks 1156 and the sliding rails 1154.

The two second moving driving

units

122a, 122b are respectively used for driving the two second connecting arms 13 to move along the second rotating shaft 115 in opposite directions or back directions, and the opposite directions or back directions of the two second connecting arms 13 can drive the two second chucks 15 to move in opposite directions or back directions. The two second moving driving

units

122a and 122b are located below the second rotating shaft 115 and are distributed left and right. Specifically, the two second moving driving

units

122a and 122b are preferably cylinders, cylinders located at the left, the cylinder bodies of which are disposed on the second rotating shaft 115 through the first connecting block 123a (the first connecting block 123a corresponds to the second connecting arm 13 located at the rear) and the ends of the piston rods of which are disposed at the bottom ends of the second connecting arms 13 located at the front through the second connecting block 124 a. The cylinder body of the cylinder located on the right is disposed on the second rotating shaft 115 through a first connecting block 123b (the first connecting block 123b corresponds to the second connecting arm 13 located on the front) and the end of the piston rod of the cylinder is disposed at the bottom end of the second connecting arm 13 located on the rear through a second connecting block 124 b. The piston rods of the two cylinders extend and retract along the axial direction of the second rotating shaft 115, so that the two second connecting arms 13 can be driven to move in opposite directions or back to back directions. In practical applications, the rotation of the second shaft 115 may drive the two sliders 1156, the two slide rails 1154, and the two second moving driving

units

122a and 122b to rotate together. When the pole piece coil is to be mounted, the two second connecting arms 13 are driven to move back along the second rotating shaft 115 by the two second moving driving

units

122a and 122b respectively, so that the two second chucks 15 can be driven to move back, the distance between the two second chucks 15 is larger than the length of the winding drum of the pole piece coil, then one end of the winding drum of the pole piece coil is spliced with the first end of the second chuck 15 positioned in front, for example, and then the two second connecting arms 13 are driven to move to the initial position by the two second moving driving

units

122a and 122b respectively, so that the two second chucks 15 can be driven to move to the initial position in opposite directions, and in the process of moving the two second chucks 15 in opposite directions, the first end of the second chuck 15 positioned behind can be spliced with the other end of the winding drum of the pole piece coil, so that the pole piece coil is mounted to the two second chucks 15, and the mounting is convenient.

As shown in fig. 7, the first fixed roller 70, the second fixed roller 80 and the third fixed roller 90 are positioned above the horizontal moving device 30, and both ends of the first fixed roller 70, the second fixed roller 80 and the third fixed roller 90 are respectively fixed on, for example, a machine table or the like through bearing seats for supporting the pole piece unwound by the first winding and unwinding assembly or the second winding and unwinding assembly.

The horizontal moving device 30 includes a fixed frame 31 above the turret device 10, a first passing roller 32, a second passing roller 34, a mounting plate 34a, a mounting plate 34b, and a moving driving assembly provided on the fixed frame 31. The fixed frame 31 is provided on a floor such as a machine.

The mounting

plates

34a and 34b are disposed in front-to-back opposition. The mounting

plates

34a and 34b are located within the fixed frame 31, and the top and bottom ends of the mounting

plates

34a, 34b are located above and below the fixed frame 31, respectively. The mounting

plates

34a and 34b are respectively adjacent to the front side inner wall and the rear side inner wall of the fixed frame 31. The top ends of the mounting

plates

34a and 34b are slidably connected to the fixed frame 31 through the

connection plates

342a and 342b, respectively.

The moving driving assembly includes a moving driving module set at the left side of the top end of the fixed frame 31 and two timing belt units.

The moving driving module includes a speed reducer 351 disposed at the left side of the top end of the fixed frame 31 and a driving motor 352 disposed at the top end of the speed reducer 351. The drive motor 352 is preferably a servo motor.

The two synchronous belt units are a first synchronous belt unit and a second synchronous belt unit respectively. The first timing belt unit is disposed at the front side of the top end of the fixed frame 31, and the second timing belt unit is disposed at the rear side of the top end of the fixed frame 31. The first timing belt unit includes a first driving pulley 3542, a first driven pulley 3543, and a first timing belt 3544 sleeved to the outer circumferences of the first driving pulley 3542 and the first driven pulley 3543. The second timing belt unit includes a second driving pulley 3552, a second driven pulley 3553, and a second timing belt 3554 sleeved to the outer circumferences of the second driving pulley 3552 and the second driven pulley 3553. The first driving wheel 3542 and the second driving wheel 3552 are respectively connected with the speed reducer 351 of the mobile driving module through two couplings 353, and the two couplings 353 are respectively arranged on the left side of the top end of the fixed frame 31 through bearing seats. The first driven pulley 3543 and the second driven pulley 3553 are disposed at the front side and the rear side of the top end of the fixed frame 31, respectively, and above the turret apparatus 10. The mounting plate 34a corresponds to the first timing belt unit and is located between the first driving pulley 3542 and the first driven pulley 3543, the mounting plate 34b corresponds to the second timing belt unit and is located between the second driving pulley 3552 and the second driven pulley 3553, and the first timing belt 3544 and the second timing belt 3554 are connected to the top end of the connecting plate 342a and the top end of the connecting plate 342b, respectively. In practical application, the driving motor 352 can drive the first driving wheel 3542 and the second driving wheel 3552 to rotate through the speed reducer 351 and the two couplings 353, so as to drive the first synchronous belt 3544, the first driven wheel 3543, the second synchronous belt 3554 and the second driven wheel 3553 to rotate, and the rotation of the first synchronous belt 3544 and the second synchronous belt 3554 can drive the connecting

plates

342a and 342b to move left and right relative to the fixed frame 31, so as to drive the mounting plate 34a, the mounting plate 34b, the first roller passing 32 and the second roller passing 33 to move together. Movement of the mounting

plates

34a, 34b may drive the cutter swing arm assembly 50 to move together.

The top ends of the mounting plate 34a and the mounting plate 34b are respectively in sliding connection with the fixed frame 31 through a connecting plate 342a and a connecting plate 342b, specifically, the top end of the mounting plate 34a is provided with a connecting plate 342a, the top end of the mounting plate 34b is provided with a connecting plate 342b, the front side and the rear side of the top end of the fixed frame 31 are respectively provided with two

guide rails

311a and 311b extending along the length direction of the fixed frame 31, the two

guide rails

311a and 311b are respectively in sliding fit with two sliding blocks, the two sliding blocks are respectively arranged at the bottom end of the connecting plate 342a and the bottom end of the connecting plate 342b, the two sliding blocks can slide left and right along the two

guide rails

311a and 311b, and the two sliding blocks and the two guide rails 311a and 331b play a guiding role in the process of moving left and right of the mounting plate 34a and the mounting plate 34b relative to the fixed frame 31.

The top end of the connecting plate 342a is provided with a riser 344a, the top end of the connecting plate 342b is provided with a riser 344b, and two ends of the first roller 32 and two ends of the second roller 33 are respectively arranged on one side of the riser 344a, which is close to the riser 344b, through two bearing seats. The first roller 32 and the second roller 33 are disposed in parallel left and right. The movement of the

connection plates

342a, 342b can drive the

risers

344a, 344b, the first roller 32, and the second roller 33 to move left and right relative to the fixed frame 31.

Referring to fig. 8 to 10, the cutter swing arm device 50 is located above the turret device 10 and includes a first cutter swing arm assembly 52, a second cutter swing arm assembly 54, a first cutter swing arm driving assembly and a second cutter swing arm driving assembly. The first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 are disposed between the mounting plate 34a and the mounting plate 34b and are disposed in bilateral symmetry. The first cutter swing arm drive assembly is disposed on a side of the mounting plate 34a remote from the mounting plate 34b and is configured to drive the first cutter swing arm assembly 52 in rotation relative to the mounting plate 34a and the mounting plate 34b, and the second cutter swing arm drive assembly is disposed on a side of the mounting plate 34b remote from the mounting plate 34a and is configured to drive the second cutter swing arm assembly 54 in rotation relative to the mounting plate 34a and the mounting plate 34 b. The side-to-side movement of the mounting

plates

34a and 34b may move the first and second cutter

swing arm assemblies

52, 54, the first and second cutter swing arm drive assemblies together. The first cutting swing arm assembly 52 is used for pressing the pole piece unreeled by the first winding and unreeling assembly to the pole piece material roll on the second winding and unreeling assembly so that the pole piece unreeled by the first winding and unreeled assembly is adhered to the rubberizing of the pole piece material roll on the second winding and unreeled assembly, and the pole piece unreeled by the first winding and unreeled assembly is cut off after being adhered, so that reel changing is realized. The second cutter swing arm assembly 54 is used for pressing the pole piece unreeled by the second winding and unreeling assembly to the pole piece material roll on the first winding and unreeling assembly so that the pole piece unreeled by the second winding and unreeled assembly is adhered to the rubberizing of the pole piece material roll on the first winding and unreeled assembly, and the pole piece unreeled by the second winding and unreeled assembly is cut off after being adhered, so that reel replacement is realized.

The first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 have the same structure, and the structure of the second cutter swing arm assembly 54 is mainly described in this embodiment, and the structure of the first cutter swing arm assembly 52 is not described again.

The second cutter swing arm assembly 54 includes a rotation shaft 5722a, a rotation shaft 5722b, two cutter swing arms 572, a first movable roller 573, a pressing roller 574, two pressing roller driving units 5744, a second movable roller 575, and a cutter module. The first movable roller 573, the press roller 574, the cutter module and the second movable roller 575 are sequentially arranged along the direction from the first end to the second end of the two cutter swing arms 572.

The first end of the rotation shaft 5722a and the first end of the rotation shaft 5722b are rotatably disposed on the side where the mounting plate 34a and the mounting plate 34b are close to each other, specifically, two mounting holes are disposed on the side where the mounting plate 34a and the mounting plate 34b are close to each other, and the first end of the rotation shaft 5722a and the first end of the rotation shaft 5722b are rotatably disposed in the two mounting holes through bearings, respectively.

Both ends of the first movable roller 573 are connected to second ends of the two

rotation shafts

5722a, 5722b, respectively.

The first ends of the two cutter swing arms 572 are respectively connected to the second ends of the two

rotation shafts

5722a, 5722b, and the second ends of the two cutter swing arms 572 extend in directions away from the mounting

plates

34a and 34b, respectively, and protrude from the mounting

plates

34a, 34b, respectively. One of the cutter swing arms 572 is located above one of the first and

second chucks

14, 15, and the other cutter swing arm 572 is located above the other of the first and

second chucks

14, 15. The lengths of the first movable roller 573, the press roller 574, the cutter 5765 of the cutter module and the second movable roller 575 are all larger than the length of the pole piece material roll.

In this embodiment, both cutter swing arms 572 are V-shaped cutter swing arms 572.

The second movable roller 575 is disposed between the second ends of the two cutter swing arms 572, and specifically, two ends of the second movable roller 575 are disposed between the second ends of the two cutter swing arms 572 through fixing bases, respectively.

The compression roller 574 is positioned between the two cutter swing arms 572, and two ends of the compression roller 574 are respectively corresponding to the corners of the two cutter swing arms 572. Two ends of the press roller 574 are respectively connected with first ends of two press roller swing arms 5742, second ends of the two press roller swing arms 5742 are respectively arranged on one sides of the two cutter swing arms 572, specifically, two press roller swing arm connecting shafts 57422 are respectively arranged on one sides of the two cutter swing arms 572, and second ends of the two press roller swing arms 5742 are respectively sleeved on the peripheries of the two press roller swing arm connecting shafts 57422 and can rotate relative to the corresponding press roller swing arm connecting shafts 57422. The two press roller driving units 5744 are respectively used for driving the two press roller swing arms 5742 to rotate relative to the two cutter swing arms 572, the press roller driving units 5744 are preferably air cylinders, specifically, a cross beam 57442 is arranged between the two cutter swing arms 572, two ends of the cross beam 57442 are respectively arranged on one side, close to the two cutter swing arms 572, of the two cutter swing arms 572, two air cylinders are respectively arranged at two ends of the cross beam 57442, the cross beam 57442 is located between the first movable roller 573 and the two press roller swing arm connecting shafts 57422, and the two press roller swing arm connecting shafts 57422 are located between the cross beam 57442 and the press roller 574. The two cylinders are obliquely arranged relative to the cross beam 57442 (see fig. 10), the cylinder shafts of the two cylinders are respectively connected with the second ends of the two press roller swing arms 5742, and the cylinder shafts of the two cylinders stretch and retract relative to the cross beam 57442 along the oblique direction, so that the two press roller swing arms 5742 can be driven to rotate around the axis of the two press roller swing arm connecting shafts 57422 relative to the two cutter swing arms 572, and the press roller 574 can rotate along with the two press roller swing arms 5742.

The corner of two cutter swing arms 572 is equipped with two inductor mount pad 5782 respectively, and two inductor mount pad 5782 are located between two cutter swing arms 572, and two inductor mount pad 5782's bottom is protruding in two cutter swing arms 572's bottom respectively and is equipped with two optic fibre inductors 5784 respectively, and two optic fibre inductors 5784 are the relative setting in front and back, and two optic fibre inductors 5784 are used for detecting the pole piece material and roll.

The cutter module comprises a cutter rotating shaft 5762, two cutter fixing seats 5763, a cutter fixing plate 5764, a cutter 5765 and a cutter driving unit 57624.

The cutter rotating shaft 5762 and the cutter driving unit 57624 are respectively provided at the sides of the two cutter swing arms 572 that are close to each other. The cutter shaft 5762 is rotatable relative to the corresponding cutter swing arm 572, and the cutter shaft 5762 is adjacent to the mounting plate 34 a. In this embodiment, one end of the cutter rotation shaft 5762, which is far away from the cutter driving unit 57624, is disposed in the mounting hole of the cutter swing arm 572, which is close to the mounting plate 34a, through a bearing. The cutter driving unit 57624 is adjacent to the mounting plate 34 b.

The first ends of the two cutter fixing bases 5763 are respectively disposed at two ends of the cutter fixing plate 5764, wherein the second end of one cutter fixing base 5763 is connected with one end of the cutter rotating shaft 5762, which is close to the cutter driving unit 57624, the second end of the other cutter fixing base 5763 is connected with the cutter driving unit 57624, in this embodiment, the cutter driving unit 57624 is preferably a rotary cylinder, and the second end of the other cutter fixing base 5763 is connected with a cylinder shaft of the rotary cylinder. The cutter fixing plate 5764 is located between the press roller 574 and the two cutter fixing seats 5763, the cutter 5765 is arranged on one side, far away from the press roller 574, of the cutter fixing plate 5764, the cutter 5765 is partially protruded out of the bottom end of the cutter fixing plate 5764, and the cutter 5765 is used for cutting off the pole piece. The rotary cylinder is used for driving the cutter fixing seat 5763 connected with the rotary cylinder to rotate relative to the two cutter swing arms 572 around the axis of the cylinder shaft, so that the other cutter fixing seat 5763, the cutter rotating shaft 5762, the cutter fixing plate 5764 and the cutter 5765 can be driven to rotate together.

A cutter shield 5766 is arranged between the cutter fixing plate 5764 and the press roller 574, and two ends of the cutter shield 5766 are respectively arranged on one side of the two cutter swing arms 572, which are close to each other. The cutter shield 5766 protects the cutter 5765.

A dust collection box 577 is arranged above the cutter module, and two ends of the dust collection box 577 are respectively arranged on one side, close to the two cutter swing arms 572, of the cutter. The top of dust absorption box 577 is equipped with vacuum connector, and vacuum connector is used for being connected with evacuating mechanism, and the bottom of dust absorption box 577 is equipped with the hole of inhaling that corresponds with the cutter module, through carrying out the evacuation to the hole of inhaling of dust absorption box 577 to can absorb the piece that forms after cutting off the pole piece, dust etc. through inhaling the hole.

The first cutter swing arm driving assembly comprises a first driving motor 562 and a first speed reducer 563, the first driving motor 562 is arranged on the first speed reducer 563, and the first driving motor 562 is connected with the first speed reducer 563. The first driving motor 562 is preferably a servo motor, the first speed reducer 563 is preferably a rotary speed reducer, the first speed reducer 563 is disposed on one side of the mounting plate 34a away from the mounting plate 34b, a first end of the rotating shaft 5722a of the first cutter swing arm assembly 52 is connected with the first speed reducer 563, and in practical application, the first driving motor 562 can drive the rotating shaft 5722a of the first cutter swing arm assembly 52 to rotate relative to the mounting plate 34a through the first speed reducer 563, the rotation of the rotating shaft 5722a can drive the first movable roller 573 and the rotating shaft 5722b to rotate, so that the two cutter swing arms 572 can be driven to rotate relative to the mounting plate 34a and the mounting plate 34b around the axes of the two

rotating shafts

5722a and 5722b, and the pressing roller 574, the cutter module, the second movable roller 575, the dust collection box 577 and the two optical fiber sensors 5784 can rotate along with the two cutter swing arms 572, so that the first cutter swing arm assembly 52 can be driven to rotate relative to the mounting plate 34a and the mounting plate 34b through the first cutter swing arm driving assembly.

The second cutter swing arm driving assembly includes a second driving motor 552 and a second speed reducer 553, the second driving motor 552 is disposed on the second speed reducer 553, and the second driving motor 552 is connected with the second speed reducer 553. The second driving motor 552 is preferably a servo motor, the second speed reducer 553 is preferably a rotary speed reducer, the second speed reducer is arranged on one side, far away from the mounting plate 34a, of the mounting plate 34b, a first end of a rotating shaft 5722b of the second cutter swing arm assembly 54 is connected with the second speed reducer 553, and in practical application, the second driving motor 552 can drive the rotating shaft 5722b of the second cutter swing arm assembly 54 to rotate relative to the mounting plate 34b through the second speed reducer 553, the rotation of the rotating shaft 5722b can drive the first movable roller 573 and the rotating shaft 5722a to rotate, so that the two cutter swing arms 572 can drive the two cutter swing arms to rotate relative to the mounting plate 34a and the mounting plate 34b around the axes of the two

rotating shafts

5722a and 5722b, and the pressing roller 574, the cutter module, the second movable roller 575, the dust collection box 577 and the two optical fiber sensors 5784 can rotate along with the two cutter swing arms, so that the second cutter swing arm assembly 54 can be driven to rotate relative to the mounting plate 34a and the mounting plate 34b through the second cutter swing arm driving assembly.

The utility model relates to a shaftless turret winding and unwinding mechanism, which has the following working principle:

as shown in fig. 11, the two pole piece rolls 200 and 300 are first mounted on the two first chucks 14 and the two second chucks 15, and then the two second chucks 15 and the pole piece roll 300 are driven to rotate relative to the two second connecting arms 13 by the second chuck driving unit 19, so as to unwind the pole piece of the pole piece roll 300, and the pole piece can sequentially pass through the first movable roller 573, the second passing roller 33, the first passing roller 32, the first fixed roller 70 and the third fixed roller 90 of the second cutter swing arm assembly 54. When the pole piece of the pole piece roll 300 is consumed, the second cutter swing arm assembly 54 is driven to rotate clockwise to a preset position by the second cutter swing arm driving assembly, at this time, the second movable roller 575 and the pressing roller 574 of the second cutter swing arm assembly 54 are in contact with the pole piece of the pole piece roll 300, the cutter swing arm 572 is in a V shape, the pole piece of the pole piece roll 300 is prevented from being broken, then the mounting plate 34a and the mounting plate 34b are driven to move leftwards to the preset position by the moving driving assembly relative to the fixed frame 31, so that the first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 can be driven to move leftwards to the preset position, as shown in fig. 12, then the first rotating shaft 114 is driven to rotate clockwise relative to the base by the first rotating driving unit 16, so that the two first connecting arms 12 can be driven to rotate clockwise around the axis of the first rotating shaft 114, the two first chucks 14 and the pole piece roll 200 can rotate along with the two first connecting arms 12, when the two ends of the pole piece roll 300 are located between the two optical fiber sensors 5784 of the second cutter swing arm assembly 54, the pole piece roll 300 can be detected by the two optical fiber sensors 5784, at this time, the first rotating shaft 114 stops being driven by the first rotating driving unit 16 to rotate clockwise relative to the base, so that the pole piece roll 200 stops rotating, at this time, the pole piece roll 200 reaches the roll changing position, as shown in fig. 12, and then the two first chucks 14 and the pole piece roll 200 are driven by the first chuck driving unit 18 to rotate in an accelerating manner until the linear speed of the maximum outer diameter of the pole piece roll 200 is matched with the running speed of the pole piece roll 300, then, the two pressing roller driving units 5744 of the second cutter swing arm assembly 54 drive the pressing rollers 574 to rotate clockwise so as to press the pole piece of the pole piece material roll 300 to the pole piece material roll 200 through the pressing rollers 574, thereby bonding the pole piece of the pole piece material roll 300 with the rubberizing of the pole piece material roll 200, and then the cutter 5765 is driven by the cutter driving unit 57624 to rotate anticlockwise so as to cut off the pole piece of the pole piece material roll 300 through the cutter 5765, thus completing the roll changing. After the completion, the press roller 574 is driven to return by the two press roller driving units 5744 of the second cutter swing arm assembly 54, the cutter 5765 is driven to return by the cutter driving unit 57624, then the second cutter swing arm assembly 54 is driven to rotate in the anticlockwise direction to return to the initial position by the second cutter swing arm driving assembly, then the first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 are driven to move to the right to the initial position by the moving driving assembly, then the first rotating shaft 114 is driven to rotate relative to the base in the anticlockwise direction to return to the initial position by the first rotating driving unit 16, so that the two first connecting arms 12, the two first chucks 14 and the pole piece roll 200 can be driven to return to the initial position, then the two first chucks 14 and the pole piece roll 200 are driven to rotate by the first chuck driving unit 18 to unwind the pole piece of the pole piece roll 200, and then a new pole piece roll is mounted to the two second chucks 15 to wait for the next roll change.

When the pole piece of the pole piece roll 200 is consumed, the first cutting swing arm assembly 52 is driven to rotate to a preset position in the anticlockwise direction through the first cutting swing arm driving assembly, at this time, the second movable rollers 575 and 574 of the first cutting swing arm assembly 52 are in contact with the pole piece of the pole piece roll 200, then the mounting plates 34a and 34b are driven to move to the right to the preset position through the moving driving assembly relative to the fixed frame 31, so that the first cutting swing arm assembly 52 and the second cutting swing arm assembly 54 can be driven to move to the right to the preset position, then the second rotating shaft 115 is driven to rotate to the anticlockwise direction relative to the base through the second rotating driving unit 17, so that the two second chucks 15 and the new pole piece roll can be driven to rotate along with the two second connecting arms 13, when both ends of the new pole piece roll are located between the two optical fiber sensors 5784 of the first cutter swing arm assembly 52, the new pole piece roll is detected by the two optical fiber sensors 5784, and at this time, the second rotation driving unit 17 stops driving the second rotation shaft 115 to rotate in the counterclockwise direction relative to the base, so that the new pole piece roll stops rotating, and at this time, the new pole piece roll reaches the roll changing position, and then the second chuck driving unit 19 drives the two second chucks 15 and the new pole piece roll to accelerate rotation until the linear speed of the maximum outer diameter of the new pole piece roll is matched with the running speed of the pole piece roll 200, and then the two press roller driving units 5744 of the first cutter swing arm assembly 52 drive the press roller 574 to rotate in the counterclockwise direction to press the pole piece of the pole piece roll 200 to the new pole piece roll by the press roller 574, so that the pole piece of the pole piece roll 200 is adhered to the adhesive tape of the new pole piece roll, and then the cutter 5765 is driven to rotate clockwise by the cutter driving unit 57624 so as to cut off the pole piece of the pole piece roll 200 by the cutter 5765, thus finishing the roll replacement. After the completion, the press roller 574 is driven to return by the two press roller driving units 5744 of the first cutter swing arm assembly 52, the cutter 5765 is driven to return by the cutter driving unit 57624, then the first cutter swing arm assembly 52 is driven to rotate clockwise by the first cutter swing arm driving assembly to return to the initial position, then the first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 are driven to move leftwards by the moving driving assembly to the initial position, then the second rotating shaft 115 is driven to rotate clockwise relative to the base by the second rotating driving unit 17, so that the two second connecting arms 13, the two second chucks 15 and the new pole piece roll can be driven to return to the initial position, then the two second chucks 15 and the new pole piece roll are driven to rotate by the second chuck driving unit 19 to realize unreeling of the pole piece of the new pole piece roll, and then the new pole piece roll is mounted on the two first chucks 14 to wait for the next reel change.

The utility model has simple structure, small occupied space and easy installation and debugging, the turret device 10, the horizontal moving device 30 and the cutter swing arm device 50 are arranged, the pole piece material roll which can rotate by a small margin is matched with the horizontal moving device 30 and the cutter swing arm device 50, the positions of the first winding and unwinding component and the second winding and unwinding component do not need to be exchanged, the pole piece of the pole piece material roll which is in operation is pressed onto the standby pole piece material roll by the cutter swing arm device 50 to realize the tape connection, and then the pole piece is cut off, so that the reel replacement is completed, the pole piece which is unreeled in the process does not move by a large margin, and the pole piece can be prevented from being damaged. The size of the roll diameter of the pole piece material roll can be compatible with 300-1200 mm, the production efficiency is improved, the labor cost is reduced, and the use requirement is greatly met.

The shaftless turret winding and unwinding mechanism of the utility model can also be used as a mechanism for winding and unwinding pole pieces, at this time, the first winding and unwinding assembly and the second winding and unwinding assembly are both used for installing an empty reel and winding the pole pieces on the empty reel, the two first clamping heads 14 and the two second clamping heads 15 are respectively used for installing the empty reel, the installation mode of the empty reel is the same as the mode of installing pole piece material rolls, and the first cutting swing arm assembly 52 is used for compressing the pole pieces wound by the first winding and unwinding assembly to the empty reel on the second winding and unwinding assembly so as to bond the pole pieces with the rubberizing of the empty reel on the second winding and unwinding assembly and cut off the pole pieces after bonding, thereby realizing reel replacement. The second cutter swing arm assembly 54 is used for pressing the pole piece wound by the second winding and unwinding assembly to the empty winding drum on the first winding and unwinding assembly so that the pole piece is adhered to the rubberizing of the empty winding drum on the first winding and unwinding assembly and is cut off after being adhered, and therefore reel replacement is achieved. Two fiber optic sensors 5784 are used to detect pole piece empty reels.

The specific working principle is as follows:

the two empty reels are firstly respectively installed on the two first chucks 14 and the two second chucks 15, the film-feeding path of the rolled pole piece is similar to that described above, and the rolled pole piece passes through the third fixed roller 90, the first fixed roller 70, the first passing roller 32, the second passing roller 33 and the second moving roller 575 of the first cutting swing arm assembly 52, and then is adhered to the empty reels through the adhesive on the empty reels. The empty reels on the two first chucks 14 are then driven to rotate by the first chuck drive unit 18 of the first winding and unwinding assembly to wind the pole pieces onto the empty reels. When the empty reels on the two first chucks 14 are fully wound with pole pieces, the first cutter swing arm assembly 52 is driven to rotate to a preset position in the anticlockwise direction by the first cutter swing arm driving assembly, at this time, the second movable rollers 575 and 574 of the first cutter swing arm assembly 52 are in contact with the pole pieces wound by the first winding and unwinding assembly, then the mounting plates 34a and 34b are driven to move to the right to the preset position by the moving driving assembly relative to the fixed frame 31, so that the first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 can be driven to move to the right to the preset position, then the second rotating shaft 115 is driven to rotate to the anticlockwise direction relative to the base by the second rotating driving unit 17, so that the two second connecting arms 13 can be driven to rotate around the axis of the second rotating shaft 115 in the anticlockwise direction, the empty reels on the two second chucks 15 can rotate together with the two second connecting arms 13, when the two ends of the empty reels on the two second chucks 15 are located between the two optical fiber sensors 5784 of the first cutting swing arm assembly 52, the empty reels on the two second chucks 15 can be detected by the two optical fiber sensors 5784, at this time, the second rotation driving unit 17 stops driving the second rotating shaft 115 to rotate in the counterclockwise direction relative to the base, so that the empty reels on the two second chucks 15 stop rotating, at this time, the empty reels on the two second chucks 15 reach the reel changing position, then the second chuck driving unit 19 drives the two second chucks 15 and the empty reels on the two second chucks 15 to rotate in an accelerating manner until the linear speed of the maximum outer diameter of the empty reels on the two second chucks 15 matches with the running speed of the pole piece wound by the first winding and unwinding assembly, then, the two press roller driving units 5744 of the first cutter swing arm assembly 52 drive the press roller 574 to rotate in the anticlockwise direction so as to press the pole piece wound by the first winding and unwinding assembly onto the empty reels on the two second chucks 15 through the press roller 574, so that the pole piece wound by the first winding and unwinding assembly is adhered to the rubberizing of the empty reels on the two second chucks 15, and then the cutter 5765 is driven by the cutter driving unit 57624 to rotate in the clockwise direction so as to cut off the pole piece wound by the first winding and unwinding assembly through the cutter 5765, thus completing reel change. After the completion, the press roller 574 is driven to return by the two press roller driving units 5744 of the first cutter swing arm assembly 52, the cutter 5765 is driven to return by the cutter driving unit 57624, then the first cutter swing arm assembly 52 is driven to rotate clockwise by the first cutter swing arm driving assembly to return to the initial position, then the first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 are driven to move leftwards by the moving driving assembly to the initial position, then the second rotating shaft 115 is driven to rotate clockwise relative to the base by the second rotating driving unit 17, so that the two second connecting arms 13, the two second chucks 15 and the empty reel can be driven to return to the initial position, then the two second chucks 15 and the empty reel are driven to rotate by the second chuck driving unit 19 to realize winding of the polar plate, and then a new empty reel is mounted to the two first chucks 14 to wait for the next reel change.

When the empty reel on the two second chucks 15 of the second winding and unwinding assembly is full of pole pieces, the second cutter swing arm assembly 54 is driven to rotate clockwise to a preset position by the second cutter swing arm driving assembly, at this time, the second movable roller 575 and the pressing roller 574 of the second cutter swing arm assembly 54 are in contact with the pole pieces wound by the second winding and unwinding assembly, then the mounting plates 34a and 34b are driven to move leftwards to the preset position by the moving driving assembly relative to the fixed frame 31, so that the first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 can be driven to move leftwards to the preset position, then the first rotating shaft 114 is driven to rotate clockwise relative to the base by the first rotating driving unit 16, so that the two first connecting arms 12 can be driven to rotate clockwise around the axis of the first rotating shaft 114, the two first chucks 14 and a new empty reel can rotate together with the two first connecting arms 12, when the two ends of the new empty reel are located between the two optical fiber sensors 5784 of the second cutter swing arm assembly 54, the new empty reel is detected by the two optical fiber sensors 5784, at this time, the first rotation driving unit 16 stops driving the first rotation shaft 114 to rotate clockwise relative to the base, so that the new empty reel stops rotating, at this time, the new empty reel reaches the reel changing position, the first chuck driving unit 18 drives the two first chucks 14 and the new empty reel to accelerate rotation until the linear speed of the maximum outer diameter of the new empty reel is matched with the running speed of the pole piece wound by the second winding and unwinding assembly, then the two press roller driving units 5744 of the second cutter swing arm assembly 54 drive the press roller 574 to rotate clockwise to press the pole piece wound by the second winding and unwinding assembly to the new empty reel by the press roller 574, so that the pole piece wound by the second winding and unwinding assembly is adhered to the rubberizing of the new empty winding drum, and then the cutter 5765 is driven by the cutter driving unit 57624 to rotate in the anticlockwise direction so as to cut off the pole piece wound by the second winding and unwinding assembly by the cutter 5765, thus finishing the reel replacement. After the completion, the press roller 574 is driven to return by the two press roller driving units 5744 of the second cutter swing arm assembly 54, the cutter 5765 is driven to return by the cutter driving unit 57624, the second cutter swing arm assembly 54 is driven to rotate in the anticlockwise direction to return to the initial position by the second cutter swing arm driving assembly, the first cutter swing arm assembly 52 and the second cutter swing arm assembly 54 are driven to move to the right to the initial position by the moving driving assembly, the first rotating shaft 114 is driven to rotate relative to the base in the anticlockwise direction to return to the initial position by the first rotating driving unit 16, so that the two first connecting arms 12, the two first chucks 14 and the new empty drum can be driven to return to the initial position, the two first chucks 14 and the new empty drum are driven to rotate by the first chuck driving unit 18 to realize winding of the polar plates, and then the new empty drum is mounted to the two second chucks 15 to wait for the next reel change.

The utility model also provides lithium battery manufacturing equipment, such as a coating machine, which comprises the shaftless turret winding and unwinding mechanism, and by adopting the shaftless turret winding and unwinding mechanism, automatic reel replacement can be realized, damage to pole piece material reels can be avoided, the production efficiency is improved, the labor cost is reduced, and the use requirement is greatly met.

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

1. The shaftless turret winding and unwinding mechanism is characterized by comprising a turret device, a horizontal moving device and a cutter swing arm device;

the turret device comprises a base, a first winding and unwinding assembly, a second winding and unwinding assembly, a first rotation driving unit and a second rotation driving unit, wherein the first winding and unwinding assembly and the second winding and unwinding assembly are respectively arranged at the top end of the base and are symmetrically arranged left and right, the first rotation driving unit is used for driving the first winding and unwinding assembly to rotate relative to the base, and the second rotation driving unit is used for driving the second winding and unwinding assembly to rotate relative to the base;

The horizontal moving device comprises a fixed frame, two mounting plates and a moving driving assembly, wherein the fixed frame is arranged above the turret device, the two mounting plates are arranged in a front-back opposite mode, the two mounting plates are respectively connected with the fixed frame in a sliding mode, and the moving driving assembly is used for driving the two mounting plates to move left and right relative to the fixed frame;

the cutter swing arm device is located above the turret device and comprises a first cutter swing arm assembly, a second cutter swing arm assembly, a first cutter swing arm driving assembly and a second cutter swing arm driving assembly, wherein the first cutter swing arm assembly and the second cutter swing arm assembly are arranged between two mounting plates and are arranged in bilateral symmetry, and the first cutter swing arm driving assembly and the second cutter swing arm driving assembly are respectively arranged on one sides of the two mounting plates and are respectively used for driving the first cutter swing arm assembly and the second cutter swing arm assembly to rotate relative to the two mounting plates.

2. The shaftless turret winding and unwinding mechanism of claim 1, wherein the first winding and unwinding assembly and the second winding and unwinding assembly each comprise a rotating shaft rotatably arranged at the top end of the base, two connecting arms arranged in a front-back opposite mode, two chucks arranged in a front-back opposite mode and a chuck driving unit, the first rotating driving unit is used for driving the rotating shaft of the first winding and unwinding assembly to rotate relative to the base, the second rotating driving unit is used for driving the rotating shaft of the second winding and unwinding assembly to rotate relative to the base, bottom ends of the two connecting arms are respectively connected with the rotating shaft, two chucks are respectively arranged at one side, close to the top ends of the two connecting arms, of the two chucks, and the chuck driving unit is used for driving one chuck to rotate relative to the corresponding connecting arm.

3. The shaftless turret winding and unwinding mechanism of claim 2, wherein said two connecting arms are movable along said rotational axis towards and away from each other, said first winding and unwinding assembly and said second winding and unwinding assembly each comprising two movement driving units for driving said two connecting arms to move towards and away from each other.

4. The shaftless turret winding and unwinding mechanism of claim 1, wherein the moving driving assembly comprises a moving driving module and two synchronous belt units, the moving driving module and the two synchronous belt units are arranged at the top end of the fixed frame, the two synchronous belt units are respectively arranged at the front side and the rear side of the top end of the fixed frame, each synchronous belt unit comprises a driving wheel, a driven wheel and a synchronous belt sleeved on the peripheries of the driving wheel and the driven wheel, the driving wheels of the two synchronous belt units are respectively connected with the moving driving module through two couplings, the two mounting plates are positioned in the fixed frame, the top ends and the bottom ends of the two mounting plates are respectively positioned above and below the fixed frame, the two mounting plates are respectively close to the inner wall at the front side and the inner wall at the rear side of the fixed frame, each mounting plate corresponds to one synchronous belt unit, and each mounting plate is positioned between the driving wheel and the driven wheel of the corresponding synchronous belt unit and is connected with the synchronous belt of the corresponding synchronous belt unit.

5. The shaftless turret winding and unwinding mechanism of claim 1, wherein the first and second cutter swing arm assemblies each comprise two rotation shafts, two cutter swing arms, a first movable roller, a press roller, and two press roller driving units; the first ends of the two rotating shafts are respectively and rotatably arranged on one sides of the two mounting plates, which are close to each other, the first ends of the two cutter swing arms are respectively connected with the second ends of the two rotating shafts, the second ends of the two cutter swing arms respectively extend towards the direction away from the two mounting plates, the two ends of the first movable roller are respectively connected with the second ends of the two rotating shafts, the press roller is positioned between the two cutter swing arms, the two ends of the press roller are respectively connected with the first ends of the two press roller swing arms, the second ends of the two press roller swing arms are respectively arranged on one sides of the two cutter swing arms, which are close to each other, and the two press roller driving units are respectively used for driving the two press roller swing arms to rotate relative to the two cutter swing arms; the first cutter swing arm driving assembly is connected with the first end of one of the rotating shafts of the first cutter swing arm assembly and used for driving the rotating shaft to rotate relative to the corresponding mounting plate, and the second cutter swing arm driving assembly is connected with the first end of one of the rotating shafts of the second cutter swing arm assembly and used for driving the rotating shaft to rotate relative to the corresponding mounting plate.

6. The shaftless turret winding and unwinding mechanism of claim 5, wherein said first and second cutter swing arm assemblies each comprise a second movable roller disposed between the second ends of said two cutter swing arms.

7. The shaftless turret winding and unwinding mechanism of claim 6, wherein the first cutter swing arm assembly and the second cutter swing arm assembly each comprise a cutter module disposed between the press roller and the second movable roller, the cutter module comprises 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 side of the two cutter swing arms, which is close to each other, the cutter rotating shaft can rotate relative to the corresponding cutter swing arm, first ends of the two cutter fixing bases are disposed on two ends of the cutter fixing plate, a second end of one cutter fixing base 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 by the cutter driving unit to rotate, 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 out of the bottom end of the cutter fixing plate.

8. The shaftless turret winding and unwinding mechanism of claim 7, wherein a cutter shield is provided between the cutter fixing plate and the press roller, and both ends of the cutter shield are respectively provided at the sides of the two cutter swing arms that are close to each other.

9. The shaftless turret winding and unwinding mechanism of claim 7, wherein a dust collection box is arranged above the cutter module, two ends of the dust collection box are respectively arranged on one side of the two cutter swing arms, which is close to each other, a vacuum joint is arranged at the top end of the dust collection box, and a suction hole corresponding to the cutter module is arranged at the bottom end of the dust collection box.

10. The shaftless turret winding and unwinding mechanism of claim 5, wherein the two cutter swing arms are V-shaped cutter swing arms, and two ends of the press roll correspond to corners of the two cutter swing arms respectively; the corner of two cutter swing arms is equipped with two inductor mount pad respectively, the bottom of two inductor mount pad protrusion respectively in the bottom of two cutter swing arms is equipped with two optic fibre inductors respectively, two optic fibre inductors are relative setting around being.

11. A lithium battery manufacturing apparatus comprising the shaftless turret winding and unwinding mechanism according to any one of claims 1-10.