CN216213652U

CN216213652U - High-efficient lamination device

Info

Publication number: CN216213652U
Application number: CN202122781999.6U
Authority: CN
Inventors: 张建扬; 姜弘红; 王学飞; 徐春龙; 尹东星
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-05
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to the technical field of lamination devices, in particular to a high-efficiency lamination device. The high efficiency lamination apparatus includes: a lamination table; the two groups of synchronous belt conveying mechanisms are respectively positioned at the front side and the rear side of the laminating table, the synchronous belt conveying mechanisms are vertically arranged, driving shafts of the synchronous belt conveying mechanisms are arranged in the left-right direction, and the two groups of synchronous belt conveying mechanisms are oppositely distributed; a plurality of clamping jaws, evenly distributed in hold-in range conveying mechanism's hold-in range surface, and every clamping jaw all with hold-in range surface vertical fixation, the vertical dislocation of the last clamping jaw of two sets of hold-in range conveying mechanism distributes, the clamping jaw is suitable for the clamp to get the pole piece, the clamping jaw can stretch out and draw back around or the horizontal slip is in order to dodge when the circulation the lamination platform. According to the efficient lamination device provided by the utility model, the clamping jaw performs annular circulating motion in the vertical direction along with the synchronous belt conveying mechanism, so that the mechanical action can be improved, redundant mechanical instructions are eliminated, the waste caused by reciprocating action is reduced, and the lamination efficiency is improved.

Description

High-efficient lamination device

Technical Field

The utility model relates to the technical field of lamination devices, in particular to a high-efficiency lamination device.

Background

The lithium ion battery has the advantages of high specific energy, more cycle times, long storage time, large capacity of a single battery cell and the like, and is widely applied to portable electronic equipment, such as mobile phones, digital cameras, portable computers and the like; but also be expanded and applied in fields such as electric bicycle, electric automobile, mobile base station and energy storage power station. Therefore, the lithium ion battery has wide market space. In this case, the product quality and the production efficiency of the battery during the production process are very important.

The existing lithium ion battery mainly takes two processes of winding and laminating as main factors in the production process. Compared with the winding process, the lamination process battery cell has the advantages of lower internal resistance, higher discharge platform, high capacity density and high energy density, and the application range is relatively wide. However, the lamination process has the following drawbacks: 1) the lamination is mainly performed by the left-right reciprocating motion of a lamination table or a feeding mechanism, the mechanical action is not consistent, and the waste of redundant working steps is caused; 2) in order to ensure the alignment degree of the lamination, fixed pause time is required between the lamination table and the feeding mechanism every time the positive electrode and the negative electrode are fed and discharged, so that the productivity is wasted. Both of these drawbacks limit the production efficiency of the lamination process.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defect of low production efficiency of the lithium ion battery lamination process in the prior art, thereby providing a high-efficiency lamination device.

In order to solve the above technical problem, the present invention provides an efficient lamination device, comprising:

a lamination table;

the two groups of synchronous belt conveying mechanisms are respectively positioned at the front side and the rear side of the laminating table, the synchronous belt conveying mechanisms are vertically arranged, driving shafts of the synchronous belt conveying mechanisms are arranged in the left-right direction, and the two groups of synchronous belt conveying mechanisms are oppositely distributed;

a plurality of clamping jaws, evenly distributed in hold-in range conveying mechanism's hold-in range surface, and every clamping jaw all with hold-in range surface vertical fixation, the vertical dislocation of the last clamping jaw of two sets of hold-in range conveying mechanism distributes, the clamping jaw is suitable for the clamp to get the pole piece, the clamping jaw can stretch out and draw back around or the horizontal slip is in order to dodge when the circulation the lamination platform.

Optionally, each group of synchronous belt conveying mechanisms comprises two synchronous belt conveying mechanisms which are distributed left and right, and the clamping jaws on the same group of two synchronous belt conveying mechanisms are located at the same position in the vertical direction and are respectively suitable for clamping left and right edges of the pole piece.

Optionally, the method further includes:

the bar mounting panel, its level is arranged and both ends are fixed respectively on two hold-in range conveying mechanism's with the group hold-in range surface, the clamping jaw is installed on the bar mounting panel.

Optionally, the clamping jaw can move left and right along the strip-shaped mounting plate.

Optionally, the clamping jaw with the bar mounting panel all is hollow plate structure and inside and is linked together, be equipped with the absorption hole that is suitable for the absorption pole piece on the clamping jaw, the connecting hole rather than inside intercommunication is seted up to both ends face about the bar mounting panel, the connecting hole is suitable for connecting outside vacuum machine.

Optionally, the method further includes:

the positive plate feeding mechanism is suitable for conveying the positive plate to the clamping range of the clamping jaw;

the negative plate feeding mechanism is suitable for conveying the negative plates to the clamping range of the clamping jaws;

and the pole piece unreeling mechanism is positioned right above the lamination table, and a reeling shaft of the pole piece unreeling mechanism is arranged along the left-right direction.

Optionally, the positive plate feeding mechanism and/or the negative plate feeding mechanism is a conveyor belt.

Optionally, the lamination table is a lifting table.

Optionally, the lamination table is provided with two lamination tables which can slide left and right.

Optionally, the method further includes:

a controller;

a sensor adapted to detect a jaw position;

the controller controls the clamping jaws to open and close and the clamping jaws to stretch or move according to the detection signals of the sensors.

The technical scheme of the utility model has the following advantages:

1. according to the efficient lamination device provided by the utility model, the clamping jaws are arranged on the synchronous belt conveying mechanisms which are vertically arranged, the two groups of clamping jaws on the synchronous belt conveying mechanisms are vertically distributed in a staggered manner, and when the efficient lamination device is used, the clamping jaws on the two groups of synchronous belt conveying mechanisms push and push the diaphragms to realize Z-shaped lamination. The clamping jaw follows the synchronous belt conveying mechanism to perform annular circular motion in the vertical direction, so that mechanical action can be improved, redundant mechanical instructions are eliminated, waste caused by reciprocating action is reduced, and lamination efficiency is improved.

2. According to the efficient lamination device provided by the utility model, each group of synchronous belt conveying mechanisms comprises two synchronous belt conveying mechanisms which are respectively suitable for clamping the left edge and the right edge of a pole piece, so that the stability of the pole piece can be kept, and the lamination quality is improved.

3. The efficient laminating device provided by the utility model is provided with the positive pole piece feeding mechanism, the negative pole piece feeding mechanism and the pole piece unwinding mechanism, so that the feeding mechanization is realized, the automation degree of the device is improved, and the manpower is reduced.

4. According to the efficient lamination device provided by the utility model, the lamination table is the lifting table, and can be adjusted downwards according to the thickness of the lamination, so that the position of the lamination is kept in a certain range, and the phenomenon that the quality of the lamination is influenced by over-deviation of the position of the lamination is avoided.

5. The efficient lamination device provided by the utility model is provided with the two lamination tables, and can alternately operate to complete lamination of different pole groups, so that the processing efficiency is further improved.

6. According to the efficient laminating device provided by the utility model, the clamping jaw adopts a vacuum adsorption structure, so that the pole piece is more firmly adsorbed, and the pole piece can be prevented from falling off.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of an efficient lamination apparatus according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Description of reference numerals:

1. a lamination table; 2. a synchronous belt conveying mechanism; 3. a clamping jaw; 31. an adsorption hole; 4. a strip-shaped mounting plate; 41. connecting holes; 5. a positive plate feeding mechanism; 6. a negative plate feeding mechanism; 7. pole piece unwinding mechanism.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Examples

Referring to fig. 1, the efficient lamination device provided in this embodiment includes a lamination table 1, a timing belt conveying mechanism 2, and a clamping jaw 3.

The lamination station 1 is a platform for completing the lamination action. When in use, the lamination table 1 can be arranged at a certain height to avoid the interference between the clamping jaw 3 and the ground.

Hold-in range conveying mechanism 2 is equipped with two sets ofly and is located the front and back both sides of lamination platform 1 respectively, and hold-in range conveying mechanism 2 is vertical arranges and its drive shaft left and right sides direction arranges, and two sets of hold-in range conveying mechanism 2 relative distribution. The synchronous belt conveying mechanism 2 can be a mechanical mechanism capable of realizing synchronous motion, and can be a belt conveying mechanism, or a chain transmission mechanism, or other common synchronous structures. The synchronous belt conveying mechanism 2 comprises a driving wheel, a driven wheel and a synchronous belt, the synchronous belt is wound on the two wheels, and a shaft of the driving wheel is a driving shaft. The two groups of synchronous belt conveying mechanisms 2 are respectively used for conveying the positive plate and the negative plate. The two groups of synchronous belt conveying mechanisms 2 are distributed oppositely, namely, the dislocation in the left and right directions is avoided.

Clamping jaw 3 is equipped with a plurality of and evenly distributed in hold-in range conveying mechanism 2's hold-in range surface, and every clamping jaw 3 all with hold-in range surface vertical fixation, the vertical dislocation distribution of clamping jaw 3 on two sets of hold-in range conveying mechanism 2, clamping jaw 3 are suitable for the clamp to get the pole piece, clamping jaw 3 can stretch out and draw back or the horizontal slip is in order to dodge lamination platform 1 when the circulation around. The clamping jaw 3 finishes the action of clamping the pole piece and is required to be in contact with the pole piece, the pole piece is required to be completely arranged on the lamination platform 1 after the lamination action is finished, and thus when the clamping jaw 3 moves along with the walking belt conveying mechanism 2, the clamping jaw 3 can interfere with the lamination platform 1, so that two solutions are adopted: firstly, the clamping jaw 3 can stretch out and draw back along the front-back direction, and when the clamping jaw 3 reaches the position of the lamination table 1, the clamping jaw retracts to avoid the lamination table 1; secondly, the clamping jaws 3 can slide along the left-right direction and outwards slide to avoid the lamination table when the clamping jaws 3 reach the position of the lamination table 1. The particular telescoping or sliding structure is readily devised by those skilled in the art.

In the efficient lamination device of the embodiment, the positive plate and the negative plate enter the lamination table 1 from the front side and the rear side of the lamination table 1 under the action of the clamping jaw 3, the diaphragm falls off from the position right above the lamination table 1, and the two plates are extruded into a Z shape to complete lamination. The movement track of the clamping jaw 3 of the device is vertical and annular, the lamination action can be continuously carried out, and compared with the existing lamination process, redundant mechanical action is avoided, the production efficiency is improved, and therefore the productivity is improved.

As the further improvement scheme of the technical scheme, each group of synchronous belt conveying mechanisms 2 comprises two synchronous belt conveying mechanisms 2 which are distributed left and right, and the clamping jaws 3 on the two synchronous belt conveying mechanisms 2 in the same group are same in position in the vertical direction and are respectively suitable for clamping the left edge and the right edge of the pole piece. Two hold-in range conveying mechanism 2 can be more firm press from both sides get the pole piece, avoid the pole piece slope, do benefit to and guarantee the lamination quality.

As a further improvement of the above technical solution, the two synchronous belt conveying mechanisms 2 of the same group use the same driving shaft. During concrete implementation, can realize two hold-in range conveying mechanism 2's action through same motor, save equipment cost, and more can guarantee the synchronism of two hold-in range conveying mechanism 2 motions to avoid the asynchronous pole piece that leads to of two hold-in range conveying mechanism 2 motions to drag and damage even.

As a preferred mounting manner of the clamping jaw 3, the clamping jaw further comprises:

the bar mounting panel 4, its level is arranged and both ends are fixed respectively on two hold-in range conveying mechanism 2's hold-in range surfaces of organizing, and clamping jaw 3 is installed on bar mounting panel 4. Compared with the direct installation on the surface of the synchronous belt, the installation is easier, and the strip-shaped installation plate 4 is of a hard structure, so that the clamping jaw 3 is kept stable.

As a preferred movement of the clamping jaws 3, the clamping jaws 3 can be moved to the left and right along the strip-shaped mounting plate 4. Compared with the front and back extension, on one hand, the travel required to move is smaller, and the structural design is simpler and more convenient; on the other hand, when the pole piece material loading adopted the conveyer belt, this structure more can the adaptation, only needs to stretch out in conveyer belt width direction with pole piece both ends, when pressing from both sides, lets clamping jaw 3 scratch into the pole piece from the left and right sides of pole piece with the claw state of opening, then closes the claw and can accomplish to press from both sides and get. If a front-back telescopic structure is adopted, partial areas of the pole pieces need to extend outwards in the length direction of the conveying belt in the front-back direction, the area of the pole pieces clamped by the clamping jaws 3 is small, and the stability is poor.

Referring to fig. 2, as a preferred clamping structure of the clamping jaw 3, the clamping jaw 3 and the strip-shaped mounting plate 4 are both hollow plate-shaped structures and are communicated with each other inside, the clamping jaw 3 is provided with an adsorption hole 31 suitable for adsorbing a pole piece, the left and right end faces of the strip-shaped mounting plate 4 are provided with connecting holes 41 communicated with the inside of the strip-shaped mounting plate, and the connecting holes 41 are suitable for being connected with an external vacuum machine. During the use, connecting hole 41 is connected with outside vacuum machine, makes clamping jaw 3 and bar mounting panel 4 produce the negative pressure to adsorb the pole piece through the negative pressure in absorption hole 31 position, guarantee that the pole piece can not drop. Specifically, the vacuum application range is that vacuum is switched in when the clamping jaw 3 rises to the position of the synchronous belt to prepare for taking the lamination, and the vacuum is broken when the lamination is pulled out of the clamping jaw 3. Of course, in other embodiments, the jaws may be in the form of two jaws that can move toward and away from each other, or in other configurations that allow for gripping action. In detail, a sliding sealing structure is arranged between the clamping jaw 3 and the strip-shaped mounting plate 4 to ensure the sealing performance inside the clamping jaw and the strip-shaped mounting plate and provide hardware guarantee for vacuum adsorption.

As a further improvement of the above technical solution, the method further comprises:

the positive plate feeding mechanism 5 is suitable for conveying the positive plate to the clamping range of the clamping jaw 3;

the negative pole piece feeding mechanism 6 is suitable for conveying the negative pole pieces to the clamping range of the clamping jaw 3;

and the pole piece unreeling mechanism 7 is positioned right above the lamination table 1, and a reeling shaft of the pole piece unreeling mechanism is arranged along the left-right direction.

In this improvement structure, the material loading of positive plate, negative pole piece and diaphragm all adopts mechanical operation, has reduced the cost of labor to improve the degree of automation of device, do benefit to the demand that satisfies current enterprise automated production. Of course, in other embodiments, manual feeding may be adopted.

As a preferable structure of the feeding mechanism, the positive electrode plate feeding mechanism 5 and/or the negative electrode plate feeding mechanism 6 is a conveyor belt. The direction of conveyer belt place is the fore-and-aft direction, during the material loading, and the pole piece is placed on the conveyer belt, follows its synchronous motion, is got down by clamping jaw 3 when moving to clamping jaw 3's clamp and gets the scope, so can realize the incessant material loading of pole piece to correspond the 3 intervals settings of clamping jaw with the interval of pole piece, can satisfy the incessant material loading demands of the incessant action of clamping jaw 3.

As a preferred structure of the lamination stage 1, the lamination stage 1 is a lifting stage. The lifting platform can move downwards according to the thickness of the lamination to adjust the position of the lamination within a certain range, and the phenomenon that the quality of the lamination is influenced by over-deviation of the position of the lamination is avoided.

As a preferable structure of the lamination table 1, two lamination tables 1 are provided and can be slid left and right. When the lamination of one pole group is finished, the corresponding lamination table 1 slides out of the lamination area, and the other lamination table 1 slides into the lamination area for lamination after the film is cut off, so that the alternate operation is realized, and the processing efficiency is higher.

As an improvement of the above technical solution, the method further comprises:

a controller;

a sensor adapted to detect the position of the jaws 3;

the controller controls the clamping jaw 3 to open and close and the clamping jaw 3 to stretch or move according to the detection signal of the sensor.

The specific control process is as follows: when the clamping jaw 3 moves to the pole piece placing position, the clamping jaw 3 stretches or slides to enable the pole piece to enter the clamping range of the clamping jaw 3, and at the moment, the pole piece is taken down by closing the clamping jaw; when the clamping jaw 3 moves to the position of the lamination table 1, the clamping jaw 3 is opened and stretched or slid simultaneously, so that the clamping jaw 3 avoids the lamination table 1 and simultaneously the pole piece falls onto the lamination table 1 for lamination.

As a specific implementation form, the high-efficiency lamination device has the following working process:

firstly, pulling a diaphragm off a pole piece unreeling mechanism 7, fixing the lower end of the diaphragm on a lamination table 1, respectively placing a positive pole piece and a negative pole piece on two conveying belts on the front side and the rear side of the lamination table 1, and enabling the left end and the right end of the pole piece to extend out of the conveying belts; starting the two groups of synchronous belt conveying mechanisms 2 and the conveying belt, and when the clamping jaws 3 move to the upper surface position of the conveying belt along with the synchronous belt conveying mechanisms 2, the clamping jaws 3 of the synchronous belt conveying mechanisms 2 in the same group approach each other along the left-right direction until the pole piece is placed in the clamping range of the clamping jaws 3, and then the clamping jaws 3 clamp the pole piece by combining the jaws; the clamping jaw 3 takes the pole piece and moves up and down along with the synchronous belt conveying mechanism 2, and the clamping jaws 3 of the two groups of synchronous belt conveying mechanisms 2 are distributed in a staggered mode, so that the clamping jaw 3 clamping the pole piece can push the diaphragm into a Z shape when contacting the diaphragm, until the clamping jaw 3 is in contact with the lamination table 1, the clamping jaw 3 opens the jaw and slides outwards along the left-right direction, the lamination table 1 is avoided, and meanwhile, the pole piece falls onto the lamination table 1 to be laminated, so that the circular motion is performed.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. An efficient lamination device, comprising:

a lamination table (1);

the two groups of synchronous belt conveying mechanisms (2) are respectively positioned at the front side and the rear side of the laminating table (1), the synchronous belt conveying mechanisms (2) are vertically arranged, driving shafts of the synchronous belt conveying mechanisms are arranged in the left-right direction, and the two groups of synchronous belt conveying mechanisms (2) are oppositely distributed;

a plurality of clamping jaws (3), evenly distributed in the hold-in range surface of hold-in range conveying mechanism (2), and every clamping jaw (3) all with hold-in range surface vertical fixation, the vertical dislocation distribution of clamping jaw (3) on two sets of hold-in range conveying mechanism (2), clamping jaw (3) are suitable for the clamp to get the pole piece, clamping jaw (3) can stretch out and draw back around or the horizontal slip is in order to dodge when the circulation lamination platform (1).

2. The efficient laminating device according to claim 1, wherein each group of synchronous belt conveying mechanisms (2) comprises two synchronous belt conveying mechanisms (2) and is distributed from left to right, and the clamping jaws (3) on the two synchronous belt conveying mechanisms (2) in the same group are positioned in the same vertical direction and are respectively suitable for clamping the left edge and the right edge of the pole piece.

3. The efficient lamination device according to claim 2, further comprising:

bar mounting panel (4), its level is arranged and both ends are fixed respectively on the hold-in range surface of two hold-in range conveying mechanism (2) of the same group, install clamping jaw (3) on bar mounting panel (4).

4. A high efficiency lamination device according to claim 3, wherein the jaws (3) are movable side to side along the strip mounting plate (4).

5. The efficient laminating device according to claim 4, wherein the clamping jaw (3) and the strip-shaped mounting plate (4) are both of a hollow plate-shaped structure and are communicated with each other inside, the clamping jaw (3) is provided with an adsorption hole (31) suitable for adsorbing a pole piece, the left end face and the right end face of the strip-shaped mounting plate (4) are provided with connecting holes (41) communicated with the inside of the strip-shaped mounting plate, and the connecting holes (41) are suitable for being connected with an external vacuum machine.

6. A high efficiency lamination device according to any one of claims 1 to 5, further comprising:

the positive plate feeding mechanism (5) is suitable for conveying the positive plate to the clamping range of the clamping jaw (3);

the negative pole piece feeding mechanism (6) is suitable for conveying the negative pole pieces to the clamping range of the clamping jaw (3);

and the pole piece unreeling mechanism (7) is positioned right above the lamination table (1), and a reeling shaft of the pole piece unreeling mechanism is arranged along the left-right direction.

7. The efficient lamination device according to claim 6, wherein the positive electrode sheet feeding mechanism (5) and/or the negative electrode sheet feeding mechanism (6) is a conveyor belt.

8. A high efficiency lamination device according to any one of claims 1 to 5, wherein the lamination station (1) is a lift station.

9. A high efficiency lamination device according to any one of claims 1-5, wherein the lamination station (1) is provided with two and both side-to-side slidable arrangements.

10. A high efficiency lamination device according to any one of claims 1 to 5, further comprising:

a controller;

a sensor adapted to detect the position of the jaw (3);

the controller controls the clamping jaw (3) to open and close and the clamping jaw (3) to stretch or move according to the detection signal of the sensor.