CN214569650U - Lamination mechanism and lamination device - Google Patents

Abstract

The utility model relates to a lamination mechanism and lamination device, this lamination mechanism include first driving piece, first pivot, first clamping piece and second clamping piece, and first driving piece is connected with first pivot transmission, first clamping piece with the second clamping piece sets up in the one end of first pivot, and first clamping piece and second clamping piece interval set up, and first clamping piece and second clamping piece are located the both sides of the axis direction of first pivot respectively, and first driving piece is used for driving first pivot and rotates to make first pivot drive first clamping piece and second clamping piece rotate around the axis direction of first pivot along clockwise or anticlockwise simultaneously. Through set up first clamping piece and second clamping piece in first pivot, the rotation of first pivot drives first clamping piece and second clamping piece and moves between primary importance and second place respectively to realize the lamination operation, have that the lamination is fast, characteristics that work efficiency is high.

Description

Lamination mechanism and lamination device

Technical Field

The utility model relates to a battery production technical field especially relates to a lamination mechanism and contain lamination device of this lamination mechanism.

Background

The battery manufacturing process in the related art includes a winding process and a lamination process. The quality of the cells produced by the lamination process is generally higher than that of the cells produced by the winding process. However, compared with the winding efficiency of the winding process, the lamination process is complicated, and the lamination efficiency is generally low and needs to be improved. For example, the lamination process currently adopts a Z-type lamination method, which basically stacks the negative electrode sheet, the separator and the positive electrode sheet from bottom to top in a Z-type manner. In the Z-shaped lamination method, the negative pole pieces and the positive pole pieces need to be sequentially fed to the lamination platform, so that the lamination speed is low, and the lamination efficiency of the battery core is further influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lamination mechanism and lamination device, its lamination is fast, and work efficiency is high.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a lamination mechanism, includes first driving piece, first pivot, first clamping piece and second clamping piece, first driving piece with first pivot transmission is connected, first clamping piece with the second clamping piece set up in the one end of first pivot, first clamping piece with the second clamping piece interval sets up, just first clamping piece with the second clamping piece is located respectively the axis direction's of first pivot both sides, first driving piece is used for driving first pivot rotates to make first pivot drive first clamping piece with the second clamping piece is simultaneously around the axis direction of first pivot rotates along clockwise or anticlockwise.

Further, the first clamping piece and the second clamping piece are symmetrically arranged on two sides of the axis of the first rotating shaft, and the first rotating shaft can drive the first clamping piece and the second clamping piece to rotate 180 degrees around the axis of the first rotating shaft at the same time, so that the first clamping piece rotates from a first position to a second position, and the second clamping piece rotates from the second position to the first position;

or the first rotating shaft can drive the first clamping piece and the second clamping piece to simultaneously rotate 180 degrees around the axis direction of the first rotating shaft, so that the first clamping piece rotates from the second position to the first position, and the second clamping piece rotates from the first position to the second position.

Further, the first clamping piece rotates from the first position to the second position in a counterclockwise direction around the axis direction of the first rotating shaft, and rotates from the second position to the first position in the counterclockwise direction;

the second clamping piece rotates around the axis direction of the first rotating shaft from the second position to the first position along the anticlockwise direction, and rotates from the first position to the second position along the anticlockwise direction.

Furthermore, the lamination mechanism further comprises a second driving part, a third driving part, a second rotating shaft and a third rotating shaft which are arranged on the first rotating shaft, the second driving part is in transmission connection with the second rotating shaft, the first clamping part is connected with the second rotating shaft, and the second driving part is used for driving the second rotating shaft to rotate so that the second rotating shaft drives the first clamping part to rotate around the axis direction of the second rotating shaft along the clockwise direction or the anticlockwise direction;

the third driving part is in transmission connection with the third rotating shaft, the second clamping part is connected with the third rotating shaft, and the third driving part is used for driving the third rotating shaft to rotate so that the third rotating shaft drives the second clamping part to rotate around the axis direction of the third rotating shaft in the clockwise direction or the anticlockwise direction.

Further, when the second clamping member rotates from the second position to the first position around the axis direction of the first rotating shaft, the third rotating shaft can drive the second clamping member to rotate around the axis direction of the third rotating shaft;

when the first clamping piece rotates from the second position to the first position around the axis direction of the first rotating shaft, the second rotating shaft can drive the first clamping piece to rotate around the axis direction of the second rotating shaft.

Furthermore, the lamination mechanism further comprises a first transmission device and a second transmission device, the first transmission device comprises a first rotating wheel, a second rotating wheel and a first wheel belt, the first wheel belt is sleeved on the first rotating wheel and the second rotating wheel, the first rotating wheel and an output shaft of the second driving piece are coaxially arranged, the second rotating wheel is connected with the second rotating shaft, the second transmission device comprises a third rotating wheel, a fourth rotating wheel and a second wheel belt, the second wheel belt is sleeved on the third rotating wheel and the fourth rotating wheel, the third rotating wheel is coaxially arranged with the output shaft of the third driving piece, and the fourth rotating wheel is connected with the third rotating shaft;

the second driving part is used for driving the first rotating wheel to rotate so as to drive the second rotating wheel to rotate through the first wheel belt and further drive the second rotating shaft to rotate;

the third driving piece is used for driving the third rotating wheel to rotate so as to drive the fourth rotating wheel to rotate through the second wheel belt and further drive the third rotating shaft to rotate.

Furthermore, the lamination mechanism further comprises a fourth driving part and a fifth driving part, the fourth driving part is connected with the second rotating shaft, and the fourth driving part is used for driving the second rotating shaft to move along the length direction of the second rotating shaft so as to drive the first clamping part to move along the length direction of the second rotating shaft;

the fifth driving part is connected with the third rotating shaft and used for driving the third rotating shaft to move along the length direction of the third rotating shaft so as to drive the second clamping part to move along the length direction of the third rotating shaft.

Furthermore, the lamination mechanism further comprises a connecting frame, the first rotating shaft is connected with the connecting frame, the first clamping piece and the second clamping piece are symmetrically arranged on two sides of the connecting frame, and when the first driving piece drives the first rotating shaft to rotate, the first rotating shaft drives the connecting frame to rotate.

Further, the first clamping piece comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are oppositely arranged, the first clamping piece can be switched between a first clamping state and a first opening state, and the first clamping piece is used for clamping a first pole piece in the first clamping state and loosening the first pole piece in the first opening state;

the second clamping piece comprises a third clamping piece and a fourth clamping piece, the third clamping piece and the fourth clamping piece are arranged oppositely, the second clamping piece can be switched between a second clamping state and a second opening state, and the second clamping piece is used for clamping a second pole piece in the second clamping state and loosening the second pole piece in the second opening state.

A lamination device is also provided, and the lamination device comprises the lamination mechanism.

The utility model discloses compare in prior art's beneficial effect:

the utility model discloses a lamination mechanism and lamination device through set up first clamping piece and second clamping piece in first pivot, and the rotation of first pivot drives first clamping piece and second clamping piece and moves between primary importance and second place respectively to realize the lamination operation, have that the lamination is fast, characteristics that work efficiency is high.

Drawings

Fig. 1 is a schematic view of one direction of a lamination mechanism of an embodiment.

Fig. 2 is a schematic view of another orientation of the lamination mechanism of the embodiment.

Fig. 3 is a schematic view of a further orientation of the lamination mechanism of the embodiment.

Fig. 4 is a schematic view of a lamination device of an embodiment.

Fig. 5 is a schematic view of a control device of the lamination device according to the embodiment.

Fig. 6 is a schematic view of a control device of a lamination device according to another embodiment.

In the figure:

10. a lamination mechanism; 101. a connecting frame; 12. a first driving member; 13. a second driving member; 141. a second rotating shaft; 142. a third rotating shaft; 15. a third driving member; 151. a fourth drive; 152. a fifth driving member; 16. a first clamping member; 161. a first clip piece; 162. a second clip; 17. a first transmission device; 171. A first rotating wheel; 172. a second rotating wheel; 173. a first belt; 18. a second clamping member; 181. a third clip piece; 182. a fourth clip piece; 19. a second transmission device; 191. a third rotating wheel; 192. a fourth rotating wheel; 193. a second belt.

100. A lamination device; 20. a lamination platform; 30. a first discharging mechanism; 31. compounding pole pieces; 311. a first composite pole piece; 312. a second composite pole piece; 313. a third composite pole piece; 314. a fourth composite pole piece; 315. A fifth composite pole piece; 50. a hold-down mechanism; 60. and a control device.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

Referring to fig. 1-3, a lamination mechanism 10 according to an embodiment of the present invention may be used for lithium ion battery lamination. The lamination mechanism 10 includes a first drive member 12, a first shaft, a first clamping member 16, and a second clamping member 18. The first driving member 12 is in driving connection with the first rotating shaft. A first clamping member 16 and a second clamping member 18 are provided at one end of the first shaft. That is, the first pivot connects the first clamping member 16 and the second clamping member 18. The first clamping member 16 and the second clamping member 18 are disposed at intervals, and the first clamping member 16 and the second clamping member 18 are respectively located on both sides in the axial direction of the first rotating shaft. That is, the first clamping member 16 and the second clamping member 18 are located on both sides of the first rotating shaft, respectively. It will be appreciated that the first drive member 12 comprises an electric motor. The first driving member 12 is used for driving the first rotating shaft to rotate, so that the first rotating shaft drives the first clamping member 16 and the second clamping member 18 to rotate simultaneously in a clockwise direction or a counterclockwise direction around the axis direction of the first rotating shaft. That is, the rotating first rotating shaft can bring the first clamping member 16 and the second clamping member 18 to rotate simultaneously in the clockwise direction around the axial direction of the first rotating shaft. Alternatively, the rotating first shaft can drive the first clamping member 16 and the second clamping member 18 to rotate in the counterclockwise direction around the axis of the first shaft.

It will be appreciated that the angle at which the rotating first shaft rotates the first clamping member 16 and the second clamping member 18 simultaneously around the axis of the first shaft can be set according to specific situations. For example: the rotating first shaft rotates the first clamping member 16 and the second clamping member 18 simultaneously about the axis of the first shaft by 90 degrees. Alternatively, the rotating first shaft drives the first clamping member 16 and the second clamping member 18 to rotate simultaneously 180 degrees around the axial direction of the first shaft. Alternatively, the rotating first shaft drives the first clamping member 16 and the second clamping member 18 to rotate 360 degrees simultaneously about the axis of the first shaft.

It will be appreciated that the first clamping member 16 can be rotated 180 degrees in a counterclockwise direction about the axis of the first shaft. At the same time, the second clamping member 18 can be rotated 180 degrees in the counterclockwise direction about the axial direction of the first rotating shaft.

It will be appreciated that the first clamping member 16 can be rotated 180 degrees clockwise about the axis of the first axis of rotation to rotate the first clamping member 16 from one predetermined position to another predetermined position. At the same time, the second clamping member 18 can be rotated 180 degrees in the clockwise direction about the axis direction of the first rotating shaft.

In the present embodiment, when the first clamping member 16 rotates in the counterclockwise direction about the axial direction of the first rotating shaft, the second clamping member 18 simultaneously rotates in the counterclockwise direction about the axial direction of the first rotating shaft. The locus of movement of the first clamp member 16 is shown by the dotted line x in the figure (the arrow on the dotted line x represents the direction of movement) and the locus of movement of the second clamp member 18 is shown by the dotted line y in the figure (the arrow on the dotted line y represents the direction of movement). The first clamp member 16 and the second clamp member 18 are shown both moving in a counterclockwise direction.

It will be appreciated that the first clamp member 16 and the second clamp member 18 are spaced from and parallel to each other.

Referring to fig. 4, the lamination mechanism 10 of the present embodiment can be used in a lamination device 100. The lamination device 100 includes a lamination platform 20. The lamination mechanism 10 is used to perform lamination operations on a lamination platform 20. The first clamping member 16 is used to clamp or open the pole pieces. The second clamping member 18 is used to clamp or open the pole pieces.

When the lamination mechanism 10 is used for lithium battery lamination, the rotating first rotating shaft can drive the first clamping member 16 clamping the pole piece(s) to rotate clockwise or counterclockwise around the axis direction of the first rotating shaft, so that the clamped pole piece is folded on the lamination platform 20, and the second clamping member 18 not clamping the pole piece can be simultaneously driven to rotate clockwise or counterclockwise around the axis direction of the first rotating shaft, so that the second clamping member 18 is located at a position where the next pole piece or multiple pole pieces to be laminated can be clamped. In the next lamination step, the second clamping member 18 which clamps the next pole piece can be driven by the rotating first rotating shaft to rotate around the axis direction of the first rotating shaft, so that the clamped next pole piece is folded on the lamination platform 20, and the first clamping member 16 which does not clamp the pole piece can rotate to return to the original position, so that the reciprocating motion is realized, the continuous lamination can be realized, the lamination speed is increased, and the lamination efficiency of the battery core is further improved.

Referring to fig. 4 to 6, in the present embodiment, the lamination device 100 includes a control device 60. The control device 60 is electrically connected to the first driving member 12. The control device 60 is used for controlling the first driving member 12 to drive the first rotating shaft to rotate, so as to drive the first clamping member 16 and the second clamping member 18 to rotate around the axis direction of the first rotating shaft simultaneously.

In other embodiments, the first clamping member 16 and the second clamping member 18 are symmetrically disposed on opposite sides of the axis of the first shaft. The rotating first shaft is capable of carrying the first clamping member 16 and the second clamping member 18 in a simultaneous circular motion about the axis of the first shaft.

Referring to fig. 1 and 2, the first rotating shaft can drive the first clamping member 16 to rotate 180 degrees around the axis of the first rotating shaft to rotate from the first position a to the second position b, and can simultaneously drive the second clamping member 18 to rotate 180 degrees around the axis of the first rotating shaft to rotate from the second position b to the first position a.

Under the condition that the first clamping member 16 is located at the second position b and the second clamping member 18 is located at the first position a, the rotating first rotating shaft can drive the first clamping member 16 to rotate 180 degrees around the axis direction of the first rotating shaft so as to rotate from the second position b to the first position a, (the motion track is shown by a dotted line y in fig. 2), and can simultaneously drive the second clamping member 18 to rotate 180 degrees around the axis direction of the first rotating shaft so as to rotate from the first position a to the second position b. (the motion trajectory is shown by the dashed line x in fig. 2).

When the lamination mechanism 10 is used for lithium battery lamination, the first clamping member 16 can clamp one or more pole pieces at the first position a, so that after the first rotating shaft drives the first clamping member 16 to rotate 180 degrees around the axis direction of the first rotating shaft to rotate from the first position a to the second position b, the pole pieces clamped by the first clamping member 16 can be folded on the lamination platform 20 (after the pole pieces are rotated 180 degrees, one lamination action can be completed). At the same time, the second clamping member 18 can be rotated from the second position b into the first position a. In this way, the second clamping member 18 can clamp the next pole piece or pieces in the first position a. Thus, when the rotating first rotating shaft drives the second clamping member 18 to rotate 180 degrees around the axis direction of the first rotating shaft so as to rotate from the first position a to the second position b, the pole pieces clamped by the second clamping member 18 can be folded on the lamination platform 20. At the same time, the first clamping element 16 returns to the first position a. In this way the first clamping member 16 can again clamp a new pole piece in the first position a to achieve a continuous lamination (cyclic reciprocal lamination by means of the first clamping member 16 and the second clamping member 18).

In another embodiment, the first clamping member 16 rotates counterclockwise around the axis of the first rotating shaft from the first position a to the second position b, (as shown in fig. 1 and 4) and rotates counterclockwise from the second position b to the first position a. (counterclockwise as viewed from the outside of the page in fig. 2 and 3) the second clamping member 18 rotates from the second position b to the first position a in the counterclockwise direction around the axis of the first rotating shaft, and rotates from the first position a to the second position b in the counterclockwise direction.

In the illustrated example, the rotating first rotating shaft can drive the first clamping member 16 to rotate 180 degrees in the counterclockwise direction around the axis direction of the first rotating shaft to rotate from the first position a to the second position b, and can simultaneously drive the second clamping member 18 to rotate 180 degrees in the counterclockwise direction around the axis direction of the first rotating shaft to rotate from the second position b to the first position a, so as to fold the pole piece clamped by the first clamping member 16 on the lamination platform 20. Under the condition that the first clamping piece 16 is located at the second position b and the second clamping piece 18 is located at the first position a, the rotating first rotating shaft can also drive the first clamping piece 16 to rotate 180 degrees around the axis direction of the first rotating shaft along the counterclockwise direction so as to rotate from the second position b to the first position a, and can simultaneously drive the second clamping piece 18 clamping the pole piece to rotate 180 degrees around the axis direction of the first rotating shaft along the counterclockwise direction so as to rotate from the first position a to the second position b, so that the pole piece clamped by the second clamping piece 18 is folded on the lamination platform 20.

Specifically, the lamination mechanism 10 further includes a second driving member 13, a third driving member 15, a second rotating shaft 141, and a third rotating shaft 142. The second driving member 13 is in transmission connection with the second rotating shaft 141. The third driving member 15 is in transmission connection with the third rotating shaft 142. The second rotating shaft 141 connects the first rotating shaft and the first clamping member 16. The third shaft 142 connects the first shaft and the second clamping member 18. The second driving member 13 is used for driving the second rotating shaft 141 to rotate, so that the second rotating shaft 141 drives the first clamping member 16 to rotate around the axis direction of the second rotating shaft 141 in a clockwise direction or a counterclockwise direction. The third driving member 15 is used for driving the third rotating shaft 142 to rotate, so that the third rotating shaft 142 drives the second clamping member 18 to rotate around the axis direction of the third rotating shaft 142 in a clockwise direction or a counterclockwise direction.

It will be appreciated that the second drive member 13 and the third drive member 15 each comprise an electric motor.

Thus, the first clamping member 16 can rotate about the second rotating shaft 141 to adjust the orientation of the first clamping member 16. The second clamping member 18 can rotate about the third axis of rotation 142 to adjust the orientation of the second clamping member 18.

It is understood that the second rotating shaft 141 and the third rotating shaft 142 are spline shafts.

In the present embodiment, the control device 60 is electrically connected to the second driver 13 and the third driver 15. The control device 60 is used for controlling the second driving member 13 to drive the second rotating shaft 141 to rotate, and for controlling the third driving member 15 to drive the third rotating shaft 142 to rotate.

In one embodiment, during the process that the first clamping member 16 rotates from the first position a to the second position b around the axis direction of the first rotating shaft and the second clamping member 18 rotates from the second position b to the first position a around the axis direction of the first rotating shaft, the rotating third rotating shaft 142 can drive the second clamping member 18 to rotate clockwise or counterclockwise around the axis direction of the third rotating shaft 142. Such that the second clamping member 18 can rotate about the third axis 142 to adjust the orientation of the second clamping member 18 for further operation of the second clamping member 18 (e.g., to clamp the next pole piece or pieces to be laminated). Meanwhile, in the process that the first clamping member 16 rotates from the second position b to the first position a around the axis direction of the first rotating shaft and the second clamping member 18 rotates from the first position a to the second position b around the axis direction of the first rotating shaft, the rotating second rotating shaft 141 can drive the first clamping member 16 to rotate clockwise or counterclockwise around the axis direction of the second rotating shaft 141. The first clamping member 16 can be rotated about the second axis of rotation 141 to adjust the orientation of the first clamping member 16 for further operation of the first clamping member 16 (e.g., to clamp one or more pole pieces to be laminated).

In particular, the lamination mechanism 10 further comprises a first transmission 17 and a second transmission 19. The first transmission 17 includes a first rotating wheel 171, a second rotating wheel 172, and a first pulley 173. The first pulley 173 is sleeved on the first rotating wheel 171 and the second rotating wheel 172. The first rotation wheel 171 is disposed coaxially with the output shaft of the second driver 13. The second rotating wheel 172 is coaxially disposed with the second rotating shaft 141. The second transmission 19 includes a third rotary wheel 191, a fourth rotary wheel 192, and a second belt 193. The second belt 193 is disposed around the third rotating wheel 191 and the fourth rotating wheel 192. The third rotary wheel 191 is provided coaxially with the output shaft of the third driver 15. The fourth rotating wheel 192 is disposed coaxially with the third rotating shaft 142.

The second driving member 13 is used for driving the first rotating wheel 171 to rotate, so as to drive the second rotating wheel 172 to rotate through the first wheel belt 173, so as to drive the second rotating shaft 141 to rotate, and further drive the first clamping member 16 to rotate around the axis direction of the second rotating shaft 141. The third driving member 15 is used for driving the third rotating wheel 191 to rotate, so as to drive the fourth rotating wheel 192 to rotate through the second belt 193, so as to drive the second clamping member 18 to rotate around the axial direction of the third rotating shaft 142. Like this, transmission's structure is comparatively simple to can improve driving piece driven stability.

In the present embodiment, the control device 60 is used for controlling the second driving element 13 to drive the first rotating wheel 171 to rotate, and for controlling the third driving element 15 to drive the third rotating wheel 191 to rotate.

Specifically, the lamination mechanism 10 further includes a fourth drive member 151 and a fifth drive member 152. The fourth driving member 151 is connected to the second rotating shaft 141. The fifth driving member 152 is connected to the third shaft 142. The fourth driving component 151 is configured to drive the second rotating shaft 141 to move back and forth along the length direction of the second rotating shaft 141, so as to drive the first clamping component 16 to move back and forth (i.e., to move back and forth) along the length direction of the second rotating shaft 141. The fifth driving element 152 is used for driving the third rotating shaft 142 to move back and forth (i.e., back and forth) along the length direction of the third rotating shaft 142, so as to drive the second clamping element 18 to move back and forth along the length direction of the third rotating shaft 142. It will be appreciated that the drive member described above comprises an electric motor.

It is understood that the driving member in the above embodiments of the present invention can be controlled by the control device 60, that is, the control device 60 can control the operating state of the driving member.

In this embodiment, when the first clamping member 16 is required to clamp the pole pieces to be laminated, the control device 60 can be used to control the fourth driving member 151 to drive the second rotating shaft 141 to move so as to drive the first clamping member 16 to extend to a position where the first clamping member 16 can clamp the pole pieces to be laminated. Under the condition that the first clamping member 16 clamps the pole pieces to be laminated, the control device 60 is configured to control the fifth driving element 152 to drive the third rotating shaft 142 to move, so as to drive the second clamping member 18 to move along the length direction of the third rotating shaft 142, so as to retreat to a certain position in the direction away from the lamination platform 20. This avoids the second clamping member 18 interfering with the laminations.

In the next lamination, when the second clamping member 18 is required to clamp the pole piece to be laminated, the control device 60 can be used to control the fifth driving member 152 to drive the third rotating shaft 142 to move, so as to drive the second clamping member 18 to extend to a position where the pole piece to be laminated can be clamped. Under the condition that the second clamping member 18 clamps the pole pieces to be laminated, the control device 60 is configured to control the fourth driving member 151 to drive the second rotating shaft 141 to move, so as to drive the first clamping member 16 to move along the length direction of the second rotating shaft 141, so as to retreat to a certain position in the direction away from the lamination platform 20. This avoids the first clamping member 16 interfering with the laminations.

In another lamination, when the first clamping member 16 is required to clamp a pole piece to be laminated, the control device 60 can control the fourth driving member 151 to drive the second rotating shaft 141 to move, so as to drive the first clamping member 16 to extend to a position where the first clamping member 16 can clamp the pole piece to be laminated. This allows alternate stacking by rotating the first clamping member 16 and the second clamping member 18.

Specifically, the lamination mechanism 10 further includes a coupling frame 101. The first shaft is connected to the connecting frame 101. The first clamping member 16 and the second clamping member 18 are symmetrically disposed at both sides of the coupling frame 101. The first driving member 12 is used for driving the first rotating shaft to rotate, so as to drive the connecting frame 101 to rotate, and further drive the first clamping member 16 and the second clamping member 18 to rotate simultaneously.

In the present embodiment, the lamination mechanism 10 includes a frame body. The first driving member 12 is mounted on the frame body. The connecting frame 101 is fixedly mounted on the first rotating shaft. The provision of the connecting frame 101 can improve the stability of the rotation of the first clamping member 16 and the second clamping member 18.

Specifically, the first clamp 16 includes a first jaw 161 and a second jaw 162. The first clip 161 and the second clip 162 are disposed opposite to each other. The first clamping member 16 is switchable between a first clamping state and a first open state. The first clamping member 16 is for clamping a first pole piece in the first clamping state and for releasing the clamped first pole piece in the first opening state.

Specifically, the interval between the first and second jaws 161 and 162 in the first clamping state is smaller than the interval between the first and second jaws 161 and 162 in the first opening state. That is, when the first clamping member 16 is switched from the first clamping state to the first open state, the distance between the first clamping piece 161 and the second clamping piece 162 increases. When the first clamping piece 16 is switched from the first open state to the first clamping state, the distance between the first clamping piece 161 and the second clamping piece 162 decreases. In the first clamping state, the first clamping member 16 can clamp the first pole piece by the first clamping piece 161 and the second clamping piece 162; in the first open state, the first clamping member 16 can release the clamped first pole piece.

In the present embodiment, the first clip piece 161 and the second clip piece 162 are each L-shaped.

Specifically, the second clamping member 18 includes a third jaw 181 and a fourth jaw 182. The third jaw 181 and the fourth jaw 182 are disposed opposite to each other. The second clamping member 18 is switchable between a second clamped state and a second open state. The second clamping member 18 is for clamping the second pole piece in the second clamped state and for releasing the clamped second pole piece in the second open state.

Specifically, the distance between the third jaw 181 and the fourth jaw 182 in the second clamping state is smaller than the distance between the third jaw 181 and the fourth jaw 182 in the second opening state. That is, when the second clamping member 18 is switched from the second clamping state to the second opening state, the distance between the third clamping piece 181 and the fourth clamping piece 182 increases. When the second clamping member 18 is switched from the second open state to the second clamping state, the distance between the third jaw 181 and the fourth jaw 182 decreases. In the second clamping state, the second clamping member 18 can clamp the second pole piece through the third clamping piece 181 and the fourth clamping piece 182; in the second open state, the second clamping member 18 can unclamp the second pole piece.

In the present embodiment, the third clip piece 181 and the fourth clip piece 182 are both L-shaped.

It is understood that the first pole piece and the second pole piece can be pole pieces to be laminated.

The clamping state and the open state of the first clamping member 16 and the second clamping member 18 can be controlled by the control device 60.

Specifically, during the process that the first clamping member 16 clamping the first pole piece rotates in the counterclockwise direction around the first rotating shaft and simultaneously the second clamping member 18 rotates in the counterclockwise direction around the first rotating shaft (the first clamping member 16 is in the first clamping state), the second clamping member 18 is in the second clamping state or the second open state. In the process that the first clamping piece 16 which does not clamp the pole piece rotates around the first rotating shaft in the anticlockwise direction and simultaneously clamps the second pole piece, the second clamping piece 18 rotates around the first rotating shaft in the anticlockwise direction, the second clamping piece 18 is in the second clamping state, and the first clamping piece 16 is in the first clamping state or the first opening state.

Referring to fig. 1 to 6, the structure of the lamination device 100 will be further described.

The lamination apparatus 100 further includes a first drop out mechanism 30 and a feed mechanism. The first discharge mechanism 30 is used for providing a plurality of composite pole pieces 31. Each composite pole piece 31 comprises two membranes and a first pole piece located between the two membranes. The plurality of composite pole pieces 31 include a first composite pole piece 311, a second composite pole piece 312, and a third composite pole piece 313, which are connected in sequence. The second composite pole piece 312 is located between the first composite pole piece 311 and the third composite pole piece 313. The first composite pole piece 311 is disposed on the lamination platform 20. The first composite pole piece 311 is provided with a second pole piece. The polarity of the second pole piece is opposite to that of the first pole piece. The second composite pole piece 312 is located on one side of the lamination platform 20. The feeding mechanism is used for respectively conveying the two third pole pieces to the upper part and the lower part of the third composite pole piece 313. The polarity of each third pole piece is opposite to that of the first pole piece.

The first clamping member 16 is used to simultaneously clamp the two third pole pieces so as to clamp the two third pole pieces and the third composite pole piece 313. The first drive 12 is used to drive the first clamping member 16 to move so as to fold the second composite pole piece 312 onto said second pole piece and to transfer the two clamped third pole pieces and the third composite pole piece 313 onto the lamination platform 20 so as to fold onto the second composite pole piece 312. Thus, in one lamination operation, the lamination of four pole pieces (including the second composite pole piece 312, one third composite pole piece 313 and two third pole pieces) is completed. After the primary lamination is completed, one of the two third pole pieces, the third composite pole piece 313, the other of the two third pole pieces, the second composite pole piece 312, the second pole piece and the first composite pole piece 311 are sequentially stacked from top to bottom.

Adopt the utility model discloses a lamination device 100 in a lamination operation, has accomplished the lamination action of four pole pieces altogether (including the compound pole piece 312 of second, the compound pole piece 313 of a third and two third pole pieces), can improve lamination device 100's lamination speed like this, and then improves lamination device 100's lamination efficiency.

It will be appreciated that when the first clamping member 16 clamps the two third and third composite pole pieces 313, the first clamping member 16 can be brought into a position close to the junction of the third and second composite pole pieces 313, 312.

In the illustrated example, two lamination mechanisms 10 are symmetrically disposed on both sides of the lamination platform 20. During lamination, in the two lamination mechanisms 10, the first clamping member 16 of one of the lamination mechanisms 10 is configured to simultaneously clamp one side of the two third pole pieces, the first clamping member 16 of the other lamination mechanism 10 is configured to simultaneously clamp the other side of the two third pole pieces, the two first clamping members 16 of the two lamination mechanisms 10 simultaneously and respectively rotate around the respective first rotating shafts in the counterclockwise direction, so as to fold the second composite pole piece 312 on the second pole piece, and transfer the two clamped third pole pieces and the third composite pole piece 313 onto the lamination platform 20 to be folded on the second composite pole piece 312. This can improve the accuracy and stability of the lamination.

In the present embodiment, the plurality of composite pole pieces 31 are connected in sequence and have a band shape. The first discharging mechanism 30 includes a discharging roller rotatably disposed on the bracket. The rotating discharging roller can drive the plurality of composite pole pieces 31 to move towards the lamination platform 20 at a preset speed. It will be appreciated that the discharge roller may be driven to rotate by a motor.

Specifically, the lamination apparatus 100 includes a second drop-off mechanism. The second discharging mechanism is used for providing a plurality of third pole pieces.

In certain embodiments, the lamination device 100 includes a sixth drive member and a seventh drive member. The feeding mechanism comprises a first feeding piece and a second feeding piece. The sixth driving piece is connected with the first feeding piece. The seventh driving piece is connected with the second feeding piece. The sixth driving member is used for driving the first feeding member to move so as to convey one third pole piece of the two third pole pieces to a first preset position above the third composite pole piece 313. The seventh driving member is used for driving the second feeding member to move so as to feed the other third pole piece of the two third pole pieces to a second preset position below the third composite pole piece 313.

It will be appreciated that the sixth and seventh drives described above may each comprise an electric motor. It will be appreciated that the first and second feed members described above may each comprise a feed robot. It is understood that the second predetermined position can be set according to specific conditions, and the second predetermined position can also be set according to specific conditions.

Specifically, the distance between the first predetermined position and the third composite pole piece 313 is equal to the distance between the second predetermined position and the third composite pole piece 313. This facilitates clamping of the pole pieces by the clamping member.

In the present embodiment, the first driving component 12 is configured to drive the first rotating shaft to rotate so as to drive the first clamping component 16 to rotate around the axis direction of the first rotating shaft, so as to fold the second composite pole piece 312 on the second pole piece, and transfer the two clamped third pole pieces and the third composite pole piece 313 onto the lamination platform 20 to be folded on the second composite pole piece 312.

It can be understood that the rotating first rotating shaft can drive the first clamping member 16 clamping three pole pieces (two third pole pieces and the third composite pole piece 313) to rotate clockwise or counterclockwise around the axis direction of the first rotating shaft, so as to fold the three pole pieces and the second composite pole piece 312 on the lamination platform 20, and can simultaneously drive the second clamping member 18 not clamping the pole pieces to rotate clockwise or counterclockwise around the axis direction of the first rotating shaft, so as to enable the second clamping member 18 to be in a position capable of clamping the next pole piece or several pole pieces to be laminated. In the next lamination step, the second clamping member 18 that clamps the next or several pole pieces (in this embodiment, 3 pole pieces) can be driven to rotate around the first rotating shaft by the rotating first rotating shaft, so that the clamped next or several pole pieces are folded on the lamination platform 20, and the first clamping member 16 that does not clamp the pole pieces can be rotated to return to the original position, thereby realizing continuous lamination, improving the lamination speed, and further improving the lamination efficiency of the battery cell.

It will be appreciated that the first clamping member 16 is capable of clamping the two third pole pieces and the third composite pole piece 313 when in the first position a, so that after the rotating first rotating shaft drives the first clamping member 16 to rotate 180 degrees around the center line of the first rotating shaft to rotate from the first position a to the second position b, the three pole pieces and the second composite pole piece 312 clamped by the first clamping member 16 can be folded on the lamination platform 20 (i.e. one lamination operation can be completed by rotating 180 degrees). At the same time, the second clamping member 18 can be rotated from the second position b into the first position a. In this way, the second clamping member 18 is able to clamp the pole piece to be laminated subsequently in the first position a. Thus, when the rotating first rotating shaft drives the second clamping member 18 to rotate 180 degrees around the center line of the first rotating shaft to rotate from the first position a to the second position b, the pole pieces clamped by the second clamping member 18 can be folded on the lamination platform 20. At the same time, the first clamping element 16 returns to the first position a. In this way the first clamping member 16 can again clamp a new pole piece in the first position a to achieve a continuous lamination (cyclic reciprocal lamination by means of the first clamping member 16 and the second clamping member 18).

Further, the plurality of composite pole pieces 31 includes a fourth composite pole piece 314 and a fifth composite pole piece 315 connected. The fourth composite pole piece 314 is located between the fifth composite pole piece 315 and the third composite pole piece 313. The feeding mechanism is used for respectively conveying the two fourth pole pieces to the upper part and the lower part of the fifth composite pole piece 315. The polarity of each fourth pole piece is opposite to that of the first pole piece.

After the first clamping member 16 rotates 180 degrees around the first rotation axis and the second clamping member 18 rotates 180 degrees around the first rotation axis to fold the second composite pole piece 312 over the second pole piece and transfer the two clamped third and third composite pole pieces 313 onto the lamination platform 20 to be folded over the second composite pole piece 312, the second clamping member 18 can simultaneously clamp the two fourth pole pieces to clamp the two fourth and fifth composite pole pieces 315.

Under the condition that the second clamping member 18 simultaneously clamps two fourth pole pieces, the rotating first rotating shaft can drive the first clamping member 16 to rotate 180 degrees around the first rotating shaft, and drive the second clamping member 18 to rotate 180 degrees around the first rotating shaft, so as to fold the fourth composite pole piece 314 on the third pole piece, and transfer and fold the two clamped fourth pole pieces and the fifth composite pole piece 315 on the fourth composite pole piece 314.

This allows for cyclic stacking by rotating the first clamping member 16 and the second clamping member 18 simultaneously.

It is understood that the two third pole pieces and the two fourth pole pieces can be provided by the second discharging mechanism. The second discharge mechanism may provide a plurality of pole pieces (e.g., positive pole pieces) having the same polarity as the third pole piece and the fourth pole piece.

Further, the lamination device 100 further includes a movably disposed hold-down mechanism 50. The pressing mechanism 50 is used to press the second pole piece and the first composite pole piece 311 during the rotation of the first clamping member 16 in the clockwise direction or the counterclockwise direction around the axis direction of the first rotating shaft.

Specifically, the pressing mechanism 50 includes a pressing sheet for pressing the second pole piece and the first composite pole piece 311. In the process that the first clamping piece 16 rotates from the first position a to the second position b around the axis direction of the first rotating shaft and the second clamping piece 18 rotates from the second position b to the first position a around the axis of the first rotating shaft, the pressing piece presses the second pole piece and the first composite pole piece 311. After the second composite pole piece 312 is folded over the second pole piece and the two clamped third and third composite pole pieces 313 are folded over the second composite pole piece 312, the first clamping member 16 may be in a state of holding the two clamped third and third composite pole pieces 313 to compress the folded pole pieces. At this time, the control device 60 can drive the pressing sheet to exit from the position for pressing the second pole piece and the first composite pole piece 311, and after adjusting the position of the pressing sheet, the pressing sheet can be driven to extend to press the folded pole piece. At this time, the control device 60 can control the position of the first clamping member 16 to withdraw from pressing the folded pole piece.

In addition, the pressing sheet presses the laminated pole pieces in the process that the first clamping member 16 rotates around the first rotating shaft from the second position b to the first position a and the second clamping member 18 rotates around the first rotating shaft from the first position a to the second position b. After the second clamping member 18 drives the pole pieces to be laminated to be folded on the laminating platform 20, the second clamping member 18 can also continuously compress the folded pole pieces. Therefore, the pressing sheet can be withdrawn subsequently, the position of the pressing sheet is adjusted, the pressing sheet is pressed to the laminated pole piece, and then the second clamping piece 18 is withdrawn.

That is, when the first clamping member 16 and the second clamping member 18 are used for circularly and reciprocally laminating, the first clamping member 16 also has the function of compressing the folded pole pieces, and the second clamping member 18 also has the function of compressing the folded pole pieces.

The remarkable effects of the embodiment are as follows: through set up first clamping piece 16 and second clamping piece 18 in first pivot, the rotation of first pivot drives first clamping piece 16 and second clamping piece 18 and moves between primary importance and second place respectively to realize the lamination operation, have the lamination fast, characteristics that work efficiency is high.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A lamination mechanism is characterized by comprising a first driving piece, a first rotating shaft, a first clamping piece and a second clamping piece, wherein the first driving piece is in transmission connection with the first rotating shaft, the first clamping piece and the second clamping piece are arranged at one end of the first rotating shaft, the first clamping piece and the second clamping piece are arranged at intervals, the first clamping piece and the second clamping piece are respectively positioned at two sides of the axis direction of the first rotating shaft, and the first driving piece is used for driving the first rotating shaft to rotate so that the first rotating shaft drives the first clamping piece and the second clamping piece to simultaneously rotate around the axis direction of the first rotating shaft along the clockwise direction or the anticlockwise direction.

2. The lamination mechanism according to claim 1, wherein the first clamping member and the second clamping member are symmetrically disposed on two sides of an axis of the first rotating shaft, and the first rotating shaft can drive the first clamping member and the second clamping member to simultaneously rotate 180 degrees around the axis of the first rotating shaft, so that the first clamping member rotates from a first position to a second position, and the second clamping member rotates from the second position to the first position;

or the first rotating shaft can drive the first clamping piece and the second clamping piece to simultaneously rotate 180 degrees around the axis direction of the first rotating shaft, so that the first clamping piece rotates from the second position to the first position, and the second clamping piece rotates from the first position to the second position.

3. The lamination mechanism according to claim 2, wherein the first clamping member rotates in a counterclockwise direction about the axis of the first rotating shaft from the first position to the second position and rotates in a counterclockwise direction from the second position to the first position;

the second clamping piece rotates around the axis direction of the first rotating shaft from the second position to the first position along the anticlockwise direction, and rotates from the first position to the second position along the anticlockwise direction.

4. The laminating mechanism according to claim 2, further comprising a second driving member, a third driving member, a second rotating shaft and a third rotating shaft, which are disposed on the first rotating shaft, wherein the second driving member is in transmission connection with the second rotating shaft, the first clamping member is connected with the second rotating shaft, and the second driving member is configured to drive the second rotating shaft to rotate, so that the second rotating shaft drives the first clamping member to rotate around the axis of the second rotating shaft in a clockwise direction or a counterclockwise direction;

the third driving part is in transmission connection with the third rotating shaft, the second clamping part is connected with the third rotating shaft, and the third driving part is used for driving the third rotating shaft to rotate so that the third rotating shaft drives the second clamping part to rotate around the axis direction of the third rotating shaft in the clockwise direction or the anticlockwise direction.

5. The laminating mechanism according to claim 4, wherein when the second clamping member rotates from the second position to the first position around the axis of the first rotating shaft, the third rotating shaft can drive the second clamping member to rotate around the axis of the third rotating shaft;

when the first clamping piece rotates from the second position to the first position around the axis direction of the first rotating shaft, the second rotating shaft can drive the first clamping piece to rotate around the axis direction of the second rotating shaft.

6. The lamination mechanism according to claim 4, further comprising a first transmission device and a second transmission device, wherein the first transmission device comprises a first rotating wheel, a second rotating wheel and a first wheel belt, the first wheel belt is sleeved on the first rotating wheel and the second rotating wheel, the first rotating wheel is coaxially disposed with an output shaft of the second driving member, the second rotating wheel is connected with the second rotating shaft, the second transmission device comprises a third rotating wheel, a fourth rotating wheel and a second wheel belt, the second wheel belt is sleeved on the third rotating wheel and the fourth rotating wheel, the third rotating wheel is coaxially disposed with the output shaft of the third driving member, and the fourth rotating wheel is connected with the third rotating shaft;

the second driving part is used for driving the first rotating wheel to rotate so as to drive the second rotating wheel to rotate through the first wheel belt and further drive the second rotating shaft to rotate;

the third driving piece is used for driving the third rotating wheel to rotate so as to drive the fourth rotating wheel to rotate through the second wheel belt and further drive the third rotating shaft to rotate.

7. The laminating mechanism according to claim 4, further comprising a fourth driving member and a fifth driving member, wherein the fourth driving member is connected to the second rotating shaft, and the fourth driving member is configured to drive the second rotating shaft to move along the length direction of the second rotating shaft so as to drive the first clamping member to move along the length direction of the second rotating shaft;

the fifth driving part is connected with the third rotating shaft and used for driving the third rotating shaft to move along the length direction of the third rotating shaft so as to drive the second clamping part to move along the length direction of the third rotating shaft.

8. The lamination mechanism according to claim 1, further comprising a connection frame, wherein the first shaft is connected to the connection frame, the first clamping member and the second clamping member are symmetrically disposed on two sides of the connection frame, and the first shaft is driven to rotate by the first driving member when the first driving member drives the first shaft to rotate.

9. The lamination mechanism according to claim 1, wherein the first clamping member includes a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece being disposed opposite to each other, the first clamping member being switchable between a first clamping state and a first open state, the first clamping member being configured to clamp a first pole piece in the first clamping state and to release the first pole piece in the first open state;

the second clamping piece comprises a third clamping piece and a fourth clamping piece, the third clamping piece and the fourth clamping piece are arranged oppositely, the second clamping piece can be switched between a second clamping state and a second opening state, and the second clamping piece is used for clamping a second pole piece in the second clamping state and loosening the second pole piece in the second opening state.

10. A lamination arrangement comprising a lamination mechanism according to any one of claims 1 to 9.

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