CN218939747U - Winding device and cell manufacturing equipment - Google Patents

Abstract

The winding device comprises a battery core clamping mechanism, a diaphragm clamping mechanism and a winding driving mechanism, wherein the battery core clamping mechanism is used for clamping a laminated battery core and a first end of a diaphragm, which is stacked on one side of the laminated battery core in advance; the diaphragm clamping machine is used for clamping the diaphragm away from the second end of the laminated battery cell and tensioning the diaphragm; the winding driving mechanism is used for driving the cell clamping mechanism and/or the diaphragm clamping mechanism to move so as to wind and wrap the diaphragm on the laminated cell; when the second end of the diaphragm is wound on the laminated battery cell, one side, far away from the second end, of the second clamping piece is arranged in a protruding mode relative to the first clamping piece, so that the second clamping piece can prop against the second end on the laminated battery cell when the first clamping piece is separated from the second end. The winding device can basically avoid the tail end of the rest part of the diaphragm, and effectively guarantee and improve the wrapping effect of the diaphragm on the laminated battery cell.

Description

Winding device and cell manufacturing equipment

Technical Field

The application belongs to the technical field of battery cell production, and particularly relates to a winding device and battery cell manufacturing equipment.

Background

In the production process of the battery cell, after the lamination of the battery cell is finished, a diaphragm with a certain length is usually required to be cut, one end of the diaphragm is clamped through a winding device, so that the diaphragm is tensioned, and then the diaphragm is wound and wrapped on the lamination battery cell, so that the lamination battery cell is prevented from being scattered. However, after the winding operation is completed, the remaining part of the separator tends to be tilted relatively to the tail end, so that the wrapping effect of the separator on the laminated battery cell is inevitably affected, and the usability of the winding device is poor.

Disclosure of Invention

The utility model aims at providing a coiling device to solve current coiling device and accomplish the back at the coiling operation, the diaphragm can the surplus perk tail end, influences the diaphragm to the parcel effect of lamination electric core, leads to the relatively poor problem of coiling device's performance.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: a winding device comprising:

the battery core clamping mechanism is used for clamping the laminated battery core and a first end of the diaphragm, which is stacked on one side of the laminated battery core in advance;

the diaphragm clamping mechanism comprises a first clamping piece, a second clamping piece and a first driving assembly, wherein the second clamping piece is arranged opposite to the first clamping piece, the first driving assembly is used for driving the first clamping piece and the second clamping piece to move oppositely or move oppositely, and the first clamping piece and the second clamping piece are jointly used for clamping the diaphragm to be far away from the second end of the laminated battery cell and tensioning the diaphragm;

The winding driving mechanism is used for driving the battery core clamping mechanism and/or the diaphragm clamping mechanism to move so as to wind and wrap the diaphragm on the laminated battery core;

wherein the second end of the diaphragm, when wound onto the laminated cell, has a first side on a side relatively closer to the laminated cell and a second side on a side relatively farther from the laminated cell; the first clamping piece is clamped on the first side, and the second clamping piece is clamped on the second side;

when the second end of the diaphragm is wound on the laminated battery cell, the second clamping piece protrudes from one side, away from the second end, of the first clamping piece, so that the second clamping piece can press the second end against the laminated battery cell when the first clamping piece is separated from the second end.

In one embodiment, when the first clamping member and the second clamping member jointly clamp the second end of the diaphragm, the second clamping member has a clamping portion which is arranged opposite to the first clamping member, and a pressing portion which is arranged in a protruding manner relative to one side of the first clamping member away from the second end.

In one embodiment, the diaphragm clamping mechanism further comprises a second drive assembly for driving the second clamping member to move relative to the first clamping member when the second end of the diaphragm is wound onto the laminated cell, such that the second clamping member is disposed in a convex manner relative to the first clamping member on a side thereof remote from the second end.

In one embodiment, the second clamping member protrudes 5-10 mm from a side of the first clamping member remote from the second end when the second end of the diaphragm is wound onto the laminated cell.

In one embodiment, a side of the second clamping member facing the first clamping member is provided with an adsorption structure for adsorbing the diaphragm.

In one embodiment, the winding device further comprises a stroking mechanism comprising a stroking assembly and a third driving assembly for driving the stroking assembly to move in a direction towards the laminated cell so that the stroking assembly can press the diaphragm against the laminated cell.

In one embodiment, the cell clamping mechanism and the diaphragm clamping mechanism are arranged at intervals along a first direction, the winding driving mechanism comprises a fourth driving assembly and a fifth driving assembly, the fourth driving assembly is used for driving the cell clamping mechanism and/or the diaphragm clamping mechanism to move along the first direction so as to adjust the distance between the cell clamping mechanism and the diaphragm clamping mechanism along the first direction, and the fifth driving assembly is used for driving the cell clamping mechanism to rotate so as to enable the diaphragm to be wound and wrapped on the laminated cell.

In one embodiment, the winding drive mechanism further comprises a sixth drive assembly for driving the cell clamping mechanism and/or the diaphragm clamping mechanism to move in a second direction to adjust the spacing of the cell clamping mechanism and the diaphragm clamping mechanism in the second direction, the second direction being perpendicular to the first direction.

In one embodiment, the electric core clamping mechanism comprises a seventh driving assembly, a clamping needle assembly and a pressing assembly, wherein the clamping needle assembly and the pressing assembly are oppositely arranged, the seventh driving assembly is used for driving the clamping needle assembly and the pressing assembly to move in opposite directions or move in opposite directions, the clamping needle assembly is used for clamping the laminated electric core and the first end of the diaphragm, which is stacked on one side of the laminated electric core in advance, and the pressing assembly is used for clamping the clamping needle assembly when the clamping needle assembly clamps the laminated electric core and the first end of the diaphragm.

In one embodiment, the winding device further comprises a cell handling mechanism having a material taking position at which the cell handling mechanism can take the laminated cell and the first end of the diaphragm stacked in advance on one side of the laminated cell, and a winding position at which the cell handling mechanism can transfer the laminated cell and the first end of the diaphragm to the cell holding mechanism.

In one embodiment, the material taking position comprises a material feeding position and a stop position between the material feeding position and the winding position, and the material taking assembly of the cell handling mechanism can clamp the laminated cell positioned at the material feeding position and the first end of the diaphragm, which is stacked on one side of the laminated cell, when the handling main body of the cell handling mechanism stops at the stop position;

the diaphragm clamping mechanism is arranged between the feeding position and the stopping position, and when the battery cell handling mechanism acquires the laminated battery cell and the first end of the diaphragm, the first clamping piece and the second clamping piece are separated and form a channel for the material taking assembly to pass through; when the material taking assembly clamps the laminated battery cell and the first end of the diaphragm and moves to the winding position, the first clamping piece and the second clamping piece are folded and jointly clamp the second end of the diaphragm.

The application also aims to provide a battery cell manufacturing device which comprises the winding device.

The beneficial effect that this application provided lies in:

according to the winding device, during winding operation, the laminated battery core and the first end of the diaphragm, which is laminated on one side of the laminated battery core, are clamped through the battery core clamping mechanism, the first clamping piece and the second clamping piece are driven to move in opposite directions through the first driving assembly, so that the first clamping piece and the second clamping piece jointly clamp the diaphragm to be far away from the second end of the laminated battery core, the diaphragm is tensioned, then, the battery core clamping mechanism and/or the diaphragm clamping mechanism are driven to move through the winding driving mechanism, so that the diaphragm is gradually wound and wrapped on the laminated battery core, and when the second end of the diaphragm is wound on the laminated battery core, the second end of the diaphragm is propped against the laminated battery core through the second clamping piece, meanwhile, the first clamping piece is separated from the second end, and then the diaphragm of the part jointly clamped with the first clamping piece can be subjected to pressing and propping until the second end of the diaphragm is completely wrapped on the laminated battery core, and winding operation can be completed. Therefore, the diaphragm is kept tensioned in the whole winding operation process, so that risks of local stacking, protrusion and the like of the diaphragm wrapped on the laminated battery core are reduced, the tail end of the residual part of the diaphragm, which is tilted relatively, is basically avoided, the wrapping effect of the diaphragm on the laminated battery core is effectively guaranteed and improved, the winding operation mode is very simple and efficient, and the service performance of the winding device is effectively guaranteed and improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a winding device according to a first embodiment of the present disclosure;

FIG. 2 is a second schematic view of a winding device according to the first embodiment of the present disclosure;

fig. 3 is a schematic view of a clamping state of a diaphragm clamping mechanism according to an embodiment of the present application.

Reference numerals illustrate:

10-a battery core clamping mechanism; 11-seventh drive assembly; 12-a needle clamping assembly; 13-a compression assembly; 20-a diaphragm clamping mechanism; 21-a first clamping member; 22-a second clamping member; 221-a clamping portion; 222-a pressing part; 23-channel; 30-a winding drive mechanism; 31-a fourth drive assembly; 311-a first slide rail; 32-a fifth drive assembly; 33-a sixth drive assembly; 40-stroking mechanism; 41-a stroking assembly; 42-a third drive assembly; 50-a cell handling mechanism; 51-a material taking position; 511-feed position; 512-resting position; 52-winding position; 53-a second slide rail; 54-cell handling assembly; 541-handling the body; 542-a take-off assembly; 60-lamination of the battery cells; 70-a separator; 71-a first end; 72-a second end; 73-a first side; 74-a second side; a-a first direction; b-a second direction.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Specific implementations of the present application are described in more detail below in connection with specific embodiments:

example 1

Referring to fig. 1, 2 and 3, a winding device is provided in an embodiment of the present application, which includes a cell clamping mechanism 10, a diaphragm clamping mechanism 20 and a winding driving mechanism 30.

Wherein, the cell clamping mechanism 10 is used for clamping the laminated cell 60 and the first end 71 of the diaphragm 70, which is stacked on one side of the laminated cell 60 in advance; the diaphragm clamping mechanism 20 includes a first clamping member 21, a second clamping member 22 disposed opposite the first clamping member 21, and a first driving assembly (not shown) for driving the first clamping member 21 and the second clamping member 22 to move toward or away from each other, the first clamping member 21 and the second clamping member 22 together being used to clamp the diaphragm 70 away from the second end 72 of the laminated cell 60 and to tension the diaphragm 70; the winding driving mechanism 30 is used for driving the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 to move so as to wind and wrap the diaphragm 70 on the laminated cell 60; wherein the second end 72 of the diaphragm 70, when wound onto the laminated cell 60, has a first side 73 on a side relatively close to the laminated cell 60 and a second side 74 on a side relatively far from the laminated cell 60; the first clamping member 21 is clamped on the first side 73, and the second clamping member 22 is clamped on the second side 74; when the second end 72 of the diaphragm 70 is wound onto the laminated cell 60, the second clamping member 22 is arranged to protrude with respect to the first clamping member 21 on the side remote from the second end 72, so that the second clamping member 22 can press the second end 72 against the laminated cell 60 when the first clamping member 21 is disengaged from the second end 72.

Based on this, when the second end 72 of the diaphragm 70 is wound onto the laminated core 60, the first clamping member 21 clamps the second end 72 relatively close to the laminated core 60, and the second clamping member 22 clamps the second end 72 relatively far away from the laminated core 60, and the second clamping member 22 protrudes from the first clamping member 21 relatively far away from the second end 72, so when the second end 72 of the diaphragm 70 is wound onto the laminated core 60, the second clamping member 22 can abut against the second side 74 of the second end 72 of the diaphragm 70, and the second end 72 of the diaphragm 70 abuts against the laminated core 60, and at the same time, the first clamping member 21 is separated from the second end 72, and then the second clamping member 22 can gradually press and abut against the diaphragm 70 of the clamping portion of the first clamping member 21 and the second clamping member 22 on the laminated core 60, thereby substantially avoiding that the diaphragm 70 of the clamping portion of the first clamping member 21 and the second clamping member 22 is remained and the diaphragm 70 is tilted relatively to the laminated core 60, and the effect of the second clamping member 70 on the laminated core 60 is also avoided, and the effect of wrapping the remaining diaphragm 70 on the laminated core 60 is better than the winding effect of the laminated core 60 is guaranteed, and the effect of wrapping the diaphragm 70 is better than the situation that the remaining diaphragm 70 is wrapped on the laminated core 60.

Based on this, when the winding device performs the winding operation, the lamination cell 60 and the first end 71 of the diaphragm 70, which is pre-laminated on one side of the lamination cell 60, are clamped by the cell clamping mechanism 10, so as to stabilize the position and the state of the lamination cell 60 and the first end 71 of the diaphragm 70, which is pre-laminated on one side of the lamination cell 60, and then the first clamping member 21 and the second clamping member 22 are driven by the first driving assembly to move towards each other, so that the first clamping member 21 and the second clamping member 22 jointly clamp the diaphragm 70 away from the second end 72 of the lamination cell 60, and the diaphragm 70 is tensioned, so as to stabilize the position and the state of the diaphragm 70 away from the second end 72 of the lamination cell 60, that is, the diaphragm 70 is clamped away from the second end 72 of the lamination cell 60 by the diaphragm clamping mechanism 20, and the diaphragm 70 is tensioned, and then the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 are driven by the winding driving mechanism 30, so that the diaphragm 70 is gradually wound around the lamination cell 60, and when the second end 72 of the diaphragm 70 is wound onto the lamination cell 60, the second end 72 is pressed against the second end 72, and the diaphragm 70 is completely pressed against the second end 72, and the second end 72 is clamped by the second clamping member 22 and the second end 72.

In this way, the diaphragm 70 is kept tensioned in the whole winding operation process, so that risks of local stacking, protrusion and the like of the diaphragm 70 wrapped on the laminated battery cell 60 are reduced, the tail end of the rest part of the diaphragm 70, which is tilted relatively, is basically avoided, the wrapping effect of the diaphragm 70 on the laminated battery cell 60 is effectively guaranteed and improved, and the winding operation mode is very simple and efficient, and the service performance of the winding device is effectively guaranteed and improved.

In addition, the operator can make the diaphragm 70 forward wrap (and "backward wrap" is a relative concept hereinafter) or backward wrap on the laminated battery core 60 as required, and the operator can selectively set the number of turns of the diaphragm 70 wound on the laminated battery core 60 as required, for example, 0.5 turn, 1 turn, 1.5 turn, 2 turns, etc., and further facilitate the realization that the opposite sides of the laminated battery core 60 wind the same number of turns of the diaphragm 70, so as to effectively improve the general performance of the winding device, and the compatibility of the winding device is relatively strong, so as to effectively improve the service performance of the winding device.

In summary, in the winding device provided in the embodiment of the present application, during winding operation, the laminated battery core 60 and the first end 71 of the diaphragm 70, which is stacked on one side of the laminated battery core 60, are clamped by the battery core clamping mechanism 10, then the first clamping member 21 and the second clamping member 22 are driven by the first driving component to move towards each other, so that the first clamping member 21 and the second clamping member 22 jointly clamp the diaphragm 70 away from the second end 72 of the laminated battery core 60, and tension the diaphragm 70, and then the battery core clamping mechanism 10 and/or the diaphragm clamping mechanism 20 are driven by the winding driving mechanism 30 to move, so that the diaphragm 70 is gradually wound and wrapped on the laminated battery core 60, and when the second end 72 of the diaphragm 70 is wound on the laminated battery core 60, the second end 72 is abutted against the laminated battery core 60 by the second clamping member 22, and at the same time, the first clamping member 21 is separated from the second end 72, so that the diaphragm 70 of the common clamping part of the first clamping member 21 and the second clamping member 22 can be stroked and abutted until the second end 72 of the diaphragm 70 is completely wrapped on the laminated battery core 60. In this way, the diaphragm 70 is kept tensioned in the whole winding operation process, so that risks of local stacking, protrusion and the like of the diaphragm 70 wound and wrapped on the laminated battery cell 60 are reduced, the tail end of the rest part of the diaphragm 70, which is tilted relatively, is basically avoided, the wrapping effect of the diaphragm 70 on the laminated battery cell 60 is effectively guaranteed and improved, and the winding operation mode is very simple and efficient, and the service performance of the winding device is effectively guaranteed and improved.

Referring to fig. 3, in the present embodiment, when the first clamping member 21 and the second clamping member 22 jointly clamp the second end 72 of the diaphragm 70, the second clamping member 22 has a clamping portion 221 opposite to the first clamping member 21, and a pressing portion 222 protruding from a side of the first clamping member 21 away from the second end 72.

By adopting the above-mentioned scheme, through making the second clamping member 22 have the clamping portion 221 which is opposite to the first clamping member 21 and make the second clamping member 22 have the pressing portion 222 which is opposite to the first clamping member 21 and protrudes, when the first clamping member 21 and the second clamping member 21 clamp the second end 72 of the diaphragm 70 together, the second clamping member 22 protrudes from the first clamping member 21, so that the second clamping member 22 can be pressed against the second end 72 of the diaphragm 70 when the first clamping member 21 is separated from the second end 72, and meanwhile, the stability and the reliability of the second clamping member 21 and the second clamping member 22 clamp the second end 72 of the diaphragm 70 can be effectively ensured, the risk that the second end 72 of the diaphragm 70 is easily separated from the first clamping member 21 and the second clamping member 22 during winding operation can be effectively reduced, and the service performance of the winding device can be effectively ensured.

Specifically, in one possible embodiment, during design and production, the second clamping member 22 is directly provided with the pressing part 222 protruding relative to the first clamping member 21, and the second clamping member 22 is provided with the clamping part 221 kept opposite, at this time, the first clamping member 21 and the second clamping member 22 cannot move relatively, so that the stability and reliability of the integral structure of the diaphragm clamping mechanism 20 can be effectively ensured, the risk that the relative movement of the first clamping member 21 and the second clamping member 22 occurs during winding operation to cause the second end 72 of the diaphragm 70 to be separated from the diaphragm clamping mechanism 20 can be effectively reduced, and the service performance of the diaphragm clamping mechanism 20 can be effectively ensured; in another possible embodiment, the first clamping member 21 and the second clamping member 22 can move relatively, and before the first clamping member 21 and the second clamping member 22 clamp the second end 72 of the diaphragm 70 together, the second clamping member 22 and the first clamping member 21 are moved relatively, so that the second clamping member 22 has the pressing portion 222 protruding relative to the first clamping member 21, and then the first clamping member 21 and the second clamping member 22 clamp the second end 72 of the diaphragm 70 together, so that an operator can adjust the size of the protruding portion of the second clamping member 22 relative to the first clamping member 21 as required to adapt to winding operations of laminated battery cells 60 with different sizes, and the versatility of the winding device is further improved. This embodiment is not particularly limited.

Referring to fig. 3, in the present embodiment, when the second end 72 of the diaphragm 70 is wound around the laminated cell 60, the second clamping member 22 protrudes 5 to 10mm from the side of the first clamping member 21 away from the second end 72.

By adopting the above scheme, through setting up the second holder 22 and keeping away from the side protrusion 5 ~ 10mm of second end 72 for first holder 21, when guaranteeing that second holder 22 can be in the second end 72 of diaphragm 70 when first holder 21 breaks away from second end 72, still make the size that second holder 22 protrusion is in first holder 21 more suitable, can effectively reduce because of second holder 22 protrusion size overlength makes the diaphragm 70 of being held the part longer even surpass the one side length of lamination electric core 60 and lead to appearing the surplus risk of diaphragm 70, still can effectively reduce because of second holder 22 protrusion size is too short easily to cause the risk that diaphragm 70 breaks away from second holder 22 even spreads out when first holder 21 breaks away from second end 72, effectively ensure coiling mechanism's performance.

Referring to fig. 1 and 3, in the present embodiment, an adsorption structure (not shown) for adsorbing the diaphragm 70 is disposed on a side of the second clamping member 22 facing the first clamping member 21.

By adopting the above scheme, through setting up the adsorption structure in the side of second holder 22 towards first holder 21 to adsorb diaphragm 70 through the adsorption structure effectively, reliably, can effectively ensure the stability, the reliability of the second end 72 of first holder 21 and second holder 22 centre gripping diaphragm 70 during coiling operation, effectively reduce the risk that the second end 72 of diaphragm 70 breaks away from first holder 21 and second holder 22 appears during coiling operation, still can make the partial second holder 22 that protrudes beyond first holder 21 effectively, reliably adsorb corresponding diaphragm 70 through the adsorption structure, and then effectively reduce the risk that appears diaphragm 70 and take place to rock, shift and influence the coiling effect for lamination electric core 60 during coiling operation, effectively ensure coiling precision, effectively ensure and improve coiling device's performance.

It should be noted that, when the second end 72 of the diaphragm 70 is wound onto the lamination cell 60, the second clamping member 22 can press against the second side 74 of the second end 72 of the diaphragm 70, and press the second end 72 of the diaphragm 70 against the lamination cell 60, and at the same time, the first clamping member 21 is separated from the second end 72, and the second clamping member 22 is not adsorbed onto the second end 72 of the diaphragm 70, so that the second clamping member 22 can gradually press and press the second clamping member 22 against the diaphragm 70 of the clamped portion of the first clamping member 21 against the lamination cell 60, thereby effectively guaranteeing the usability of the winding device.

Specifically, the second clamping member 22 is provided with a vacuum hole (not shown in the figure), and the vacuum pumping assembly is communicated with the vacuum hole, so that the second clamping member 22 can be vacuumized through the vacuum pumping assembly, and the negative pressure is formed on the side of the second clamping member 22 facing the first clamping member 21 to stably and reliably adsorb the diaphragm 70; during winding operation, when the second end 72 of the diaphragm 70 is wound onto the lamination cell 60, the second clamping member 22 can press against the second side 74 of the second end 72 of the diaphragm 70, so that the diaphragm 70 is pressed against the lamination cell 60, meanwhile, the first clamping member 21 is separated from the second end 72, and air is injected into the two clamping members 22 through the vacuum Kong Xiangdi by the vacuumizing assembly, so that vacuum breaking is realized, and the second clamping member 22 is not adsorbed on the second end 72 of the diaphragm 70, so that the second clamping member 22 can press and press the diaphragm 70 of the clamping part clamped by the first clamping member 21 against the lamination cell 60 gradually, and the service performance of the winding device is effectively ensured.

Referring to fig. 1 and 2, in the present embodiment, the winding device further includes a stroking mechanism 40, where the stroking mechanism 40 includes a stroking component 41 and a third driving component 42, and the third driving component 42 is used to drive the stroking component 41 to move toward a direction approaching to the laminated battery cell 60, so that the stroking component 41 can press the diaphragm 70 against the laminated battery cell 60.

Through adopting above-mentioned scheme, through setting up and touching mechanism 40 to through the direction removal of third drive assembly 42 drive touching subassembly 41 towards being close to lamination electric core 60, so that touching subassembly 41 gradually with diaphragm 70 support on lamination electric core 60, effectively reduce the risk that the diaphragm 70 of parcel in lamination electric core 60 appears locally stacking, protruding etc. during the coiling operation, guarantee effectively that diaphragm 70 is to lamination electric core 60's parcel effect, guarantee coiling mechanism's performance effectively.

Here, the third driving unit 42 may press the diaphragm 70 against the laminated cell 60 when the diaphragm 70 is wound to the last half turn, or may press the diaphragm 70 against the laminated cell 60 when the winding operation is started. This embodiment is not particularly limited.

It should be noted that, the operator may selectively press and abut the diaphragm 70 against the laminated battery cell 60 through the pressing mechanism 40, at this time, the diaphragm clamping mechanism 20 is only used for clamping the second end 72 of the diaphragm 70 so as to keep the tension effect of the diaphragm 70, when the second end 72 of the diaphragm 70 is wound onto the laminated battery cell 60 or when the diaphragm 70 is wound to the last half turn, the clamping of the first clamping member 21 and the second clamping member 22 to the second end 72 of the diaphragm 70 is cancelled, and then the pressing mechanism 40 gradually presses and abuts the second end 72 of the diaphragm 70 against the laminated battery cell 60, so that the situation that the wrapping effect of the diaphragm 70 against the laminated battery cell 60 is affected due to the rising of the diaphragm 70 relative to the laminated battery cell 60 is effectively avoided, and the wrapping effect of the diaphragm 70 against the tail end of the rising relative to the laminated battery cell 60 is also effectively avoided, so that the wrapping effect of the diaphragm 70 against the laminated battery cell 60 is effectively ensured, and the performance of the device is better than that of the laminated battery cell 60 is wrapped.

In addition, the operator can also make the diaphragm 70 forward wrap (and "backward wrap" is a relative concept below) or backward wrap on the laminated battery core 60 as required, and the operator can also selectively set the number of turns of the diaphragm 70 wound on the laminated battery core 60 as required, for example, 0.5 turn, 1 turn, 1.5 turn, 2 turns, etc., which is also beneficial to realizing that the diaphragm 70 with the same number of turns is wound on the opposite sides of the laminated battery core 60, effectively improving the general performance of the winding device, having stronger compatibility of the winding device and effectively improving the service performance of the winding device.

Specifically, the stroking component 41 is preferably a rotatable stroking wheel, so that the contact area between the stroking component 41 and the diaphragm 70 can be effectively reduced, and further the friction force between the stroking component 41 and the diaphragm 70 can be effectively reduced, so that the stroking component 41 can more smoothly and stably strok and resist the diaphragm 70, and the service performance of the winding device is effectively ensured.

Referring to fig. 1 and 2, in the present embodiment, the cell clamping mechanism 10 and the diaphragm clamping mechanism 20 are disposed at intervals along a first direction a, the winding driving mechanism 30 includes a fourth driving assembly 31 and a fifth driving assembly 32, the fourth driving assembly 31 is used for driving the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 to move along the first direction a so as to adjust the distance between the cell clamping mechanism 10 and the diaphragm clamping mechanism 20 along the first direction a, and the fifth driving assembly 32 is used for driving the cell clamping mechanism 10 to rotate so as to enable the diaphragm 70 to wind around the laminated cell 60.

By adopting the above scheme, during the winding operation, the fifth driving component 32 drives the cell clamping mechanism 10 to rotate, and at the same time, the fourth driving component 31 drives the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 to move along the first direction a, so as to adaptively adjust the distance between the cell clamping mechanism 10 and the diaphragm clamping mechanism 20 along the first direction a, thereby realizing winding and wrapping the diaphragm 70 on the laminated cell 60, and effectively guaranteeing the usability of the winding device.

It should be noted that, in practical application, the first direction a may be a horizontal direction, the fourth driving assembly 31 includes a driver (not shown in the drawings) and a first sliding rail 311 formed along the first direction a, and the driver is used to drive the diaphragm clamping mechanism 20 and/or the cell clamping mechanism 10 to slide along the first sliding rail 311. Based on this, the driver drives the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 to move along the first sliding rail 311, so that the distance between the cell clamping mechanism 10 and the diaphragm clamping mechanism 20 along the horizontal direction can be adaptively adjusted, and the moving direction of the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 is guided and restrained by the first sliding rail 311, so that the risk that the moving direction of the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 deviates from the preset direction is effectively reduced, the moving stability and reliability of the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 are effectively ensured, and the service performance of the winding device is effectively ensured.

Referring to fig. 1 and 2, in the present embodiment, the winding driving mechanism 30 further includes a sixth driving assembly 33, and the sixth driving assembly 33 is used for driving the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 to move along a second direction b, so as to adjust a distance between the cell clamping mechanism 10 and the diaphragm clamping mechanism 20 along the second direction b, and the second direction b is perpendicular to the first direction a.

By adopting the above scheme, during the winding operation, the fifth driving component 32 drives the core clamping mechanism 10 to rotate, and at the same time, the fourth driving component 31 drives the core clamping mechanism 10 and/or the membrane clamping mechanism 20 to move along the first direction a so as to adaptively adjust the distance between the core clamping mechanism 10 and the membrane clamping mechanism 20 along the first direction a, and the sixth driving component 33 is used for driving the core clamping mechanism 10 and/or the membrane clamping mechanism 20 to move along the second direction b so as to adaptively adjust the distance between the core clamping mechanism 10 and the membrane clamping mechanism 20 along the second direction b, so that the membrane 70 can be wound and wrapped on the laminated core 60 rapidly and efficiently by adjusting the distance between the core clamping mechanism 10 and the membrane clamping mechanism 20 in multiple directions, thereby effectively improving the winding operation efficiency and the usability of the winding device.

Referring to fig. 1 and 2, in the present embodiment, the cell clamping mechanism 10 includes a seventh driving component 11, and a clamping pin component 12 and a pressing component 13 disposed opposite to each other, where the seventh driving component 11 is used to drive the clamping pin component 12 and the pressing component 13 to move toward each other or away from each other, the clamping pin component 12 is used to clamp the laminated cell 60 and a first end 71 of the diaphragm 70, which is stacked on one side of the laminated cell 60 in advance, and the pressing component 13 is used to clamp the clamping pin component 12 when the clamping pin component 12 clamps the laminated cell 60 and the first end 71 of the diaphragm 70.

By adopting the above scheme, the seventh driving assembly 11 drives the clamping needle assembly 12 to move towards the direction close to the pressing assembly 13, so that the clamping needle assembly 12 clamps the laminated battery cell 60 and the first end 71 of the diaphragm 70, which is pre-stacked on one side of the laminated battery cell 60, and then the seventh driving assembly 11 drives the pressing assembly 13 to move towards the direction close to the clamping needle assembly 12, so that the clamping needle assembly 13 clamps the clamping needle assembly 12, so that the clamping needle assembly 12 keeps stably and reliably clamping the laminated battery cell 60 and the first end 71 of the diaphragm 70, which is pre-stacked on one side of the laminated battery cell 60, and the service performance of the battery cell clamping mechanism 10 is effectively ensured.

Specifically, the compression assembly 13 is used to clamp the end of the clamping pin assembly 12 near the laminated cell 60 and the first end 71 of the diaphragm 70 as the clamping pin assembly 12 clamps it. Therefore, the clamping effect of the pressing component 13 on the needle clamping component 12 is ensured, the moving stroke of the pressing component 13 can be effectively reduced, the operation time of winding operation is effectively shortened, and the efficiency of the winding operation is effectively improved.

Referring to fig. 1 and 2, in the present embodiment, the winding device further includes a cell handling mechanism 50, where the cell handling mechanism 50 has a material taking position 51 and a winding position 52, the cell handling mechanism 50 can obtain the laminated cells 60 and the first ends 71 of the diaphragms 70 stacked on one side of the laminated cells 60 at the material taking position 51, and the cell handling mechanism 50 can transfer the laminated cells 60 and the first ends 71 of the diaphragms 70 to the cell clamping mechanism 10 at the winding position 52.

By adopting the above scheme, during the winding operation, the laminated battery cell 60 and the first end 71 of the diaphragm 70, which are stacked on one side of the laminated battery cell 60 in advance, are obtained at the material taking position 51 by the battery cell handling mechanism 50 so as to take materials, and then the battery cell handling mechanism 50 drives the laminated battery cell 60 and the first end 71 of the diaphragm 70 to switch to the winding position 52, and the laminated battery cell 60 and the first end 71 of the diaphragm 70 are transferred to the battery cell clamping mechanism 10 at the winding position 52, so that the transfer of materials can be realized, and the using function of the handling mechanism can be realized. Therefore, the user can flexibly set the battery core carrying mechanism 50 according to the requirement of the material taking position 51, so that the material transfer is realized through the battery core carrying mechanism 50, and the continuous production between the winding process and the previous process in the production process of the laminated battery core 60 is particularly facilitated, and the general performance and the service performance of the winding device are effectively improved.

Specifically, referring to fig. 1 and 2, the cell handling mechanism 50 includes a second slide rail 53, a cell handling assembly 54 slidably connected to the second slide rail 53, and an eighth driving assembly (not shown in the drawings) for driving the cell handling assembly 54 to slide along the second slide rail 53, so that the cell handling assembly 54 moves between a material taking position 51 and a winding position 52, the cell handling assembly 54 can take the laminated cell 60 and a first end 71 of the diaphragm 70, which is stacked on one side of the laminated cell 60 in advance, at the material taking position 51, and the cell handling assembly 54 can transfer the laminated cell 60 and the first end 71 of the diaphragm 70 to the cell clamping mechanism 10 at the winding position 52. Based on this, during the winding operation, the battery cell handling assembly 54 is driven by the eighth driving assembly to slide along the second slide rail 53 toward the direction close to the material taking position 51, so as to switch the position of the battery cell handling assembly 54 to the material taking position 51, so as to obtain the laminated battery cell 60 and the first end 71 of the diaphragm 70, which is stacked on one side of the laminated battery cell 60 in advance, at the material taking position 51 by the battery cell handling assembly 54, so as to take materials; then, the eighth driving component drives the battery core handling component 54 to drive the laminated battery core 60 and the first end 71 of the diaphragm 70 to slide along the second sliding rail 53 towards the direction close to the winding position 52, so as to switch the position of the battery core handling component 54 to the winding position 52, and the battery core handling component 54 transfers the laminated battery core 60 and the first end 71 of the diaphragm 70 to the battery core clamping mechanism 10 at the winding position 52, so that the transfer of materials can be realized, and the using function of the handling mechanism can be realized. In addition, the moving direction of the battery cell carrying assembly 54 is guided and restrained through the second sliding rail 53, so that the risk that the moving direction of the battery cell carrying assembly 54 deviates from the preset direction is effectively reduced, the moving stability and reliability of the battery cell carrying assembly 54 are effectively ensured, and the service performance of the winding device is effectively ensured.

The first sliding rail 311 and the second sliding rail 53 may be two independent components or the same component. For example, in the present embodiment, the first sliding rail 311 and the second sliding rail 53 are the same component. This embodiment is not particularly limited.

Referring to fig. 1 and 2, in the present embodiment, the material taking position 51 includes a material feeding position 511 and a parking position 512 between the material feeding position 511 and the winding position 52, and when the carrying body 541 of the cell carrying mechanism 50 is parked at the parking position 512, the material taking component 542 of the cell carrying mechanism 50 can clamp the laminated cells 60 located at the material feeding position 511 and the first end 71 of the separator 70, which is stacked on one side of the laminated cells 60 in advance; the diaphragm clamping mechanism 20 is disposed between the supply position 511 and the rest position 512, and when the cell handling mechanism 50 takes the laminated cell 60 and the first end 71 of the diaphragm 70, the first clamping member 21 and the second clamping member 22 are separated and form a passageway 23 therebetween for the take out assembly 542 to pass through; when the take-out assembly 542 grips the laminated cells 60 and the first end 71 of the diaphragm 70 and moves to the winding position 52, the first and second clamps 21, 22 are brought together and cooperate to grip the second end 72 of the diaphragm 70.

By adopting the above-described configuration, during the winding operation, by bringing the carrying body 541 of the cell carrying mechanism 50 to rest at the rest position 512 while the first clamping member 21 and the second clamping member 22 are separated and forming the passage 23 therebetween for the take-out assembly 542 to pass therethrough, the take-out assembly 542 takes out the laminated cells 60 and the first end 71 of the separator 70, which is laminated on the side of the laminated cells 60 in advance, from the feeding position 511 to take out the material; then, the cell handling mechanism 50 drives the laminated cell 60 and the first end 71 of the diaphragm 70 to move towards the direction close to the winding position 52, and when the material taking assembly 542 clamps the laminated cell 60 and the first end 71 of the diaphragm 70 and moves to the winding position 52, the material taking assembly 542 transfers the laminated cell 60 and the first end 71 of the diaphragm 70 to the cell clamping mechanism 10, so that the material can be transferred, and at the same time, the first clamping member 21 and the second clamping member 22 are folded and jointly clamp the second end 72 of the diaphragm 70, so that the diaphragm 70 is tensioned, and then the cell clamping mechanism 10 and/or the diaphragm clamping mechanism 20 can be driven to move by the winding driving mechanism 30, so that the diaphragm 70 is gradually wound and wrapped on the laminated cell 60, so as to complete the winding operation.

In this way, by providing the diaphragm clamping mechanism 20 between the supply position 511 and the rest position 512, the lamination cell 60 and the first end 71 of the diaphragm 70 are transferred by the cell handling mechanism 50, and simultaneously, the clamping of the second end 72 of the diaphragm 70 by the diaphragm clamping mechanism 20 can be realized in a homeotropically, so that the continuity of the winding operation can be effectively improved, the winding operation time can be effectively reduced, the winding operation efficiency can be further improved, and the usability of the winding device can be effectively improved.

Referring to fig. 1, the present application further provides a battery cell manufacturing apparatus, where the battery cell manufacturing apparatus includes a winding device, and the specific structure of the winding device refers to the foregoing embodiments.

Example two

The difference between this embodiment and the first embodiment is that:

referring to fig. 1 and 3, in the present embodiment, the diaphragm clamping mechanism 20 further includes a second driving assembly (not shown) for driving the second clamping member 22 to move relative to the first clamping member 21 when the second end 72 of the diaphragm 70 is wound onto the lamination cell 60, such that the second clamping member 22 is disposed to protrude from a side of the first clamping member 21 away from the second end 72.

By adopting the above scheme, during winding operation, when the second end 72 of the diaphragm 70 is wound onto the laminated battery core 60, the second driving assembly drives the second clamping member 22 to move relative to the first clamping member 21, so that the second clamping member 22 protrudes from one side of the first clamping member 21 away from the second end 72, so that the second clamping member 22 presses the second end 72 of the diaphragm 70 against the laminated battery core 60, and at the same time, the first clamping member 21 breaks away from the second end 72, and the second clamping member 22 can gradually press and press the diaphragm 70 of the clamping portion of the first clamping member 21 against the laminated battery core 60, so that the situation that the wrapping effect of the diaphragm 70 on the laminated battery core 60 is affected due to the fact that the diaphragms 70 of the clamping portions of the first clamping member 21 and the second clamping member 22 are remained and are tilted relative to the laminated battery core 60 can be basically avoided, and the situation that the wrapping effect of the diaphragms 70 on the laminated battery core 60 is affected due to the fact that the remaining portions of the diaphragms 70 are tilted relatively can be basically avoided, and the good use performance of the laminated battery core 60 can be effectively ensured.

It should be noted that, the second driving assembly drives the second clamping member 22 to move relative to the first clamping member 21, so that an operator can adjust the size of the protruding portion of the second clamping member 22 relative to the first clamping member 21 as required, so as to adapt to the winding operation of the laminated battery cells 60 with different sizes, and further improve the general performance of the winding device.

The foregoing description of the preferred embodiment of the present invention is provided for the purpose of illustration only, and is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims (10)

1. A winding device, characterized by comprising:

the battery core clamping mechanism is used for clamping the laminated battery core and a first end of the diaphragm, which is stacked on one side of the laminated battery core in advance;

the diaphragm clamping mechanism comprises a first clamping piece, a second clamping piece and a first driving assembly, wherein the second clamping piece is arranged opposite to the first clamping piece, the first driving assembly is used for driving the first clamping piece and the second clamping piece to move oppositely or move oppositely, and the first clamping piece and the second clamping piece are jointly used for clamping the diaphragm to be far away from the second end of the laminated battery cell and tensioning the diaphragm;

the winding driving mechanism is used for driving the battery core clamping mechanism and/or the diaphragm clamping mechanism to move so as to wind and wrap the diaphragm on the laminated battery core;

wherein the second end of the diaphragm, when wound onto the laminated cell, has a first side on a side relatively closer to the laminated cell and a second side on a side relatively farther from the laminated cell; the first clamping piece is clamped on the first side, and the second clamping piece is clamped on the second side;

When the second end of the diaphragm is wound on the laminated battery cell, the second clamping piece protrudes from one side, away from the second end, of the first clamping piece, so that the second clamping piece can press the second end against the laminated battery cell when the first clamping piece is separated from the second end.

2. The winding device according to claim 1, wherein when the first clamping member and the second clamping member clamp the second end of the diaphragm together, the second clamping member has a clamping portion that is held in opposition to the first clamping member, and a pressing portion that is provided so as to protrude with respect to a side of the first clamping member away from the second end;

or, the diaphragm clamping mechanism further comprises a second driving assembly, wherein the second driving assembly is used for driving the second clamping piece to move relative to the first clamping piece when the second end of the diaphragm is wound on the lamination cell, so that the second clamping piece protrudes relative to one side, away from the second end, of the first clamping piece.

3. The winding device according to claim 1, wherein the second clamping member protrudes 5 to 10mm from a side of the first clamping member remote from the second end when the second end of the separator is wound onto the laminated cell;

And/or, one side of the second clamping piece facing the first clamping piece is provided with an adsorption structure for adsorbing the diaphragm.

4. The winding device of claim 1, further comprising a wiper mechanism comprising a wiper assembly and a third drive assembly for driving the wiper assembly in a direction toward the laminated cells to enable the wiper assembly to press the diaphragm against the laminated cells.

5. The winding apparatus according to claim 1, wherein the cell clamping mechanism and the diaphragm clamping mechanism are disposed at intervals along a first direction, the winding driving mechanism includes a fourth driving assembly for driving the cell clamping mechanism and/or the diaphragm clamping mechanism to move along the first direction so as to adjust a distance between the cell clamping mechanism and the diaphragm clamping mechanism along the first direction, and a fifth driving assembly for driving the cell clamping mechanism to rotate so as to wind the diaphragm around the laminated cell.

6. The winding device of claim 5, wherein the winding drive mechanism further comprises a sixth drive assembly for driving the cell clamping mechanism and/or the diaphragm clamping mechanism to move in a second direction to adjust a spacing of the cell clamping mechanism and the diaphragm clamping mechanism in the second direction, the second direction being perpendicular to the first direction.

7. The winding device according to claim 1, wherein the cell clamping mechanism includes a seventh driving assembly for driving the clamping pin assembly and the pressing assembly to move toward or away from each other, and a pressing assembly for clamping the laminated cell and the first end of the separator, which is stacked in advance on one side of the laminated cell, when the clamping pin assembly clamps the laminated cell and the first end of the separator.

8. The winding device according to any one of claims 1 to 7, further comprising a cell handling mechanism having a take-out position in which the cell handling mechanism can take out the laminated cells and the first end of the separator that is stacked in advance on the laminated cell side, and a winding position in which the cell handling mechanism can transfer the laminated cells and the first end of the separator to the cell holding mechanism.

9. The winding device of claim 8, wherein the take-out position includes a feed position and a rest position between the feed position and the winding position, the take-out assembly of the cell handling mechanism being capable of gripping the stacked cells in the feed position and the first end of the diaphragm pre-stacked on one side of the stacked cells when the handling body of the cell handling mechanism is at the rest position;

The diaphragm clamping mechanism is arranged between the feeding position and the stopping position, and when the battery cell handling mechanism acquires the laminated battery cell and the first end of the diaphragm, the first clamping piece and the second clamping piece are separated and form a channel for the material taking assembly to pass through; when the material taking assembly clamps the laminated battery cell and the first end of the diaphragm and moves to the winding position, the first clamping piece and the second clamping piece are folded and jointly clamp the second end of the diaphragm.

10. A cell manufacturing apparatus comprising a winding device according to any one of claims 1 to 9.

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