CN223552570U

CN223552570U - Lamination device

Info

Publication number: CN223552570U
Application number: CN202422866780.XU
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Huizhou Longhe Technology Co ltd
Current assignee: Huizhou Longhe Technology Co ltd
Priority date: 2024-11-22
Filing date: 2024-11-22
Publication date: 2025-11-14
Anticipated expiration: 2034-11-22

Abstract

The utility model relates to the technical field of lamination equipment and discloses a lamination device which comprises at least two flattening mechanisms, a lamination table and a battery core lifting mechanism, wherein the output ends of the battery core lifting mechanism are connected with the lamination table so as to fix the working plane of a lamination, the at least two flattening mechanisms are arranged on two opposite sides of the lamination table, each flattening mechanism comprises a flattening piece and an XZ shaft assembly, and the output end of each XZ shaft assembly is connected with one flattening piece so as to flatten a diaphragm on the lamination table. The X Z shaft assembly adjusts the positions of the flattening pieces from the horizontal direction and the vertical direction, can better compress the left side and the right side of the diaphragm, achieves a better compressing effect, combines the lifting effect of the battery core lifting mechanism, ensures that the movement stroke of the flattening pieces is fixed, has better stability when being pressed down, can effectively prevent lamination from wrinkling, ensures the alignment degree of pole pieces, ensures the service life and the energy density of the battery, and avoids the occurrence of safety accidents.

Description

Lamination device

Technical Field

The utility model belongs to the technical field of lamination equipment, and particularly relates to a lamination device.

Background

Lithium batteries are currently the main stream batteries with high energy density and long service life in the market, and the lithium batteries still have to take the dominant role in the market for a long time. The lithium battery is manufactured by using a cutting and stacking integrated machine in the manufacturing process.

One of the technical difficulties existing in the cutting and stacking integrated machine in the market at present is lamination, when lamination is carried out, the positive plate, the negative plate and the diaphragm are required to be stacked to form a structure of one-layer diaphragm-one-layer positive plate and one-layer diaphragm-one-layer negative plate, therefore, in the lamination process, if the diaphragm is wrinkled, the alignment degree between the pole plates can not meet the corresponding precision requirement, so that the service life and the energy density of the battery are seriously influenced, and safety accidents are possibly caused.

Disclosure of utility model

In order to solve the deficiencies of the prior art, the present utility model provides a lamination device.

The technical effects to be achieved by the utility model are realized by the following technical aspects:

A lamination device comprises at least two flattening mechanisms, a lamination table and a battery core lifting mechanism for driving the lamination table to ascend or descend;

The output end of the battery core lifting mechanism is connected with the lamination table so as to fix the position of the working plane of the lamination;

At least two flattening mechanisms are arranged on two opposite sides of the lamination table, each flattening mechanism comprises a flattening piece and an XZ shaft assembly, the XZ shaft assemblies are used for driving the flattening pieces to be close to or far away from the lamination table from the horizontal direction and the vertical direction, and the output end of each XZ shaft assembly is connected with one flattening piece so as to flatten a diaphragm on the lamination table.

In some embodiments, the number of XZ axis assemblies and the number of applanation members are provided in each of the applanation mechanisms as at least two.

In some embodiments, the XZ axis assembly comprises an X axis unit and a Z axis unit, an output of the X axis unit being connected to the Z axis unit, an output of the Z axis unit being connected to the applanation member.

In some embodiments, the X-axis unit includes an X-axis linear motor and an X-axis slide rail, an output end of the X-axis linear motor is connected to the Z-axis unit, and the Z-axis unit is slidably disposed on the X-axis slide rail so as to be close to or far from the lamination table.

In some embodiments, the flattening member is provided with a pressure sensor for detecting a pressing pressure value of the flattening member.

In some embodiments, the applanation component is configured as a crimp jaw.

In some embodiments, the cell lifting mechanism comprises a cell lifting linear motor, and an output end of the cell lifting linear motor is connected with the lamination table.

In some embodiments, the battery pack flattening device further comprises a frame body and a stacking lifting mechanism for driving the frame body to ascend or descend, the battery pack lifting mechanism and each flattening mechanism are arranged on the frame body, and the output end of the stacking lifting mechanism is connected with the frame body.

In some embodiments, the stacking lifting mechanism comprises a stacking lifting linear motor and a stacking lifting sliding rail, wherein an output end of the stacking lifting linear motor is connected with the frame body, and the frame body is arranged on the stacking lifting sliding rail in a sliding manner.

In some embodiments, the lamination machine further comprises a pressing mechanism, wherein the pressing mechanism comprises a pressing knife and a pressing driver for driving the pressing knife to be close to or far away from the lamination table, and an output end of the pressing driver is connected with the pressing knife.

In summary, the present utility model has at least the following advantages:

According to the lamination device provided by the utility model, when a lamination process is required, positive and negative pole pieces can be carried on the lamination table, the diaphragm swing roller drives the diaphragm to sequentially move back and forth to be overlapped on the pole pieces, so that a structure of one layer of diaphragm and one layer of positive pole piece and one layer of diaphragm and one layer of negative pole piece is formed, and the battery cell lifting assembly drives the lamination table to stack down one lamination stroke at a time, so that the working planes of the lamination are always at the same height, the height can be kept unchanged after the lamination is completed, the battery cells are taken away at the lamination completion position, and the lamination table does not need to be additionally lifted for taking materials. During the process, through being provided with at least two flattening mechanisms, and the XZ axle subassembly is from the position of horizontal direction and vertical direction adjustment flattening piece, make each flattening piece can flatten the diaphragm on the lamination platform to can compress tightly the left and right sides of diaphragm better, reach the effect of preferred compressing, combine electric core elevating system's lift effect, make the motion stroke of flattening the piece fixed, stability when pushing down is better, thereby can effectively prevent the lamination and take place the fold, guarantee the alignment degree of pole piece, guaranteed battery's life and energy density, avoid the emergence of incident.

Drawings

Fig. 1 is a schematic perspective view of a lamination device according to an embodiment of the present application;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1;

FIG. 3 is a schematic side view of a lamination assembly according to an embodiment of the application;

FIG. 4 is a schematic top view of a lamination apparatus according to an embodiment of the application;

fig. 5 is a schematic side view of a lamination device according to an embodiment of the application.

The marks in the figure:

10. Lamination device;

100. A lamination stage;

200. The device comprises a flattening mechanism, a flattening piece, 220, an XZ axis assembly, 221, an X axis unit, 2211, an X axis linear motor, 2212, an X axis sliding rail, 222 and a Z axis unit;

300. a battery core lifting mechanism;

400. a leveling mechanism;

500. 510, pressing the knife;

600. The folding table lifting mechanism comprises a 610 folding table lifting linear motor, a 620 folding table lifting slide rail;

700. and a battery cell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are some, but not all, embodiments of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the following examples and figures, reference is made to the coordinate system of fig. 1, with the direction of the arrow of the X axis being the right, the direction of the arrow of the Y axis being the front, and the direction of the arrow of the Z axis being the upward.

Example 1:

As shown in fig. 1 to 4, in the present embodiment, there is provided a lamination apparatus 10 including at least two flattening mechanisms 200, a lamination stage 100, and a cell lifting mechanism 300 for driving the lamination stage 100 up or down, an output end of the cell lifting mechanism 300 being connected to the lamination stage 100 so that a working plane position of the lamination is fixed, at least two flattening mechanisms 200 being provided on opposite sides of the lamination stage 100, the flattening mechanisms 200 including flattening members 210 and XZ-axis assemblies 220 for driving the flattening members 210 to approach or separate from the lamination stage 100 from horizontal and vertical directions, an output end of each XZ-axis assembly 220 being connected to one of the flattening members 210 to flatten a diaphragm on the lamination stage 100.

Specifically, lamination station 100 is configured to carry cells 700 for lamination. The battery core lifting mechanism 300 is in driving connection with the lamination table 100 to drive the lamination table 100 to move along the Z-axis direction. The number of the flattening mechanisms 200 is optional but not limited to two, and is arranged on the left side and the right side of the lamination table 100, and in each flattening mechanism 200, an XZ axis assembly 220 is arranged at a distance from the lamination table 100, and the XZ axis assembly 220 is in driving connection with the flattening member 210.

It should be noted that, when the lamination process is required, the positive and negative electrode plates can be carried to the lamination table 100, the diaphragm swing roller drives the diaphragm to sequentially move back and forth and be overlapped on the electrode plates to form a structure of one layer of diaphragm layer by layer positive electrode plates and one layer of diaphragm layer by layer negative electrode plates, and the battery cell 700 lifting component drives the lamination table 100 to lift one lamination stroke once, so that the working planes of the lamination are always at the same height, the height can be kept unchanged after the lamination is completed, the battery cell 700 is taken away at the lamination completion position, and the battery cell 100 does not need to be lifted up to take materials. During the process, the position of the flattening piece 210 is adjusted from the horizontal direction and the vertical direction by the arrangement of the at least two flattening mechanisms 200, so that each flattening piece 210 can flatten the diaphragm on the lamination table 100, the left side and the right side of the diaphragm can be better compacted, a better compacting effect is achieved, the movement stroke of the flattening piece 210 is fixed by combining the lifting effect of the battery core lifting mechanism 300, the stability in pressing is better, the lamination is effectively prevented from being wrinkled, the alignment degree of pole pieces is ensured, the service life and the energy density of a battery are ensured, and the occurrence of safety accidents is avoided.

Example 2

This embodiment is a further implementation of embodiment 1, in this embodiment, as shown in fig. 1, in each flattening mechanism 200, the number of XZ-axis assemblies 220 and the number of flattening members 210 are set to at least two.

Specifically, the number of XZ-axis assemblies 220 and the number of flattening members 210 are optional but not limited to two, and by including a plurality of XZ-axis assemblies 220 and a plurality of flattening members 210 in each flattening mechanism 200, the left and right sides of the diaphragm can be subjected to a plurality of pressing actions, and the anti-wrinkling effect is better.

In order to make the pressing effect of the diaphragm better, as shown in fig. 1 to 3, in some embodiments, a pressure sensor for detecting a pressing pressure value of the pressing member 210 is provided on the pressing member 210.

Specifically, by providing a pressure sensor on the applanation member 210, the force of the applanation member 210 as it presses down the diaphragm is fed back on the control system, reducing the risk of wrinkling the laminated diaphragm. The manner in which the pressure sensor detects the pressure value of the pressing member 210 when pressing down and has feedback on the control system is known to those skilled in the art, and may be implemented, which is not described in detail herein.

To facilitate the use of applanation member 210, in some embodiments, applanation member 210 is configured as a crimp jaw, as shown in FIG. 2.

Specifically, the flattening member 210 may be, but is not limited to, a pressing claw for pressing the diaphragm, preventing the diaphragm from wrinkling at the time of lamination, the pressing claw being provided in a plate shape so as to be capable of pressing the diaphragm against.

To facilitate movement of lamination stage 100 by cell lift mechanism 300, as shown in fig. 1 and 3, in some embodiments, cell lift mechanism 300 includes a cell lift linear motor, an output of which is coupled to lamination stage 100.

Specifically, the electric core lifting linear motor is connected with the lamination table 100 through a connecting rod, so that the lamination table 100 is driven to descend when the lamination is carried out, and the working plane of the lamination is kept unchanged all the time. Compared with the common motor driving belt mode, the electric core lifting linear motor has the characteristics of larger torque, compact structure, high control precision and the like. The manner in which the lamination table 100 is driven to lift by the electric core lifting linear motor is known to those skilled in the art, and can be implemented, and is not described in detail herein.

To facilitate adapting to the production line with different height requirements, as shown in fig. 1 and 3, in some embodiments, the lamination device 10 further includes a frame body and a stacking lifting mechanism 600 for driving the frame body to rise or fall, where the battery cell lifting mechanism 300 and each flattening mechanism 200 are disposed on the frame body, and an output end of the stacking lifting mechanism 600 is connected to the frame body.

Specifically, the stacking lifting mechanism 600 is mounted on the base, and can lift the whole frame body according to the on-site adjustment precision, so that the height of the whole platform can be conveniently adjusted, and the production line with different height requirements can be adapted. The cell lift mechanism 300 is mounted on a frame and the XZ axis assembly 220 is mounted on the frame such that the frame can be used to carry the flattening mechanism 200, the cell lift mechanism 300, and the lamination stage 100.

To facilitate the overall lifting of the frame, as shown in fig. 1 and 3, in some embodiments, the stacking lifting mechanism 600 includes a stacking lifting linear motor 610 and a stacking lifting slide rail 620, where an output end of the stacking lifting linear motor 610 is connected to the frame, and the frame is slidably disposed on the stacking lifting slide rail 620.

Specifically, the stacking lifting slide rails 620 are vertically installed on the base along the Z-axis direction, the number of the stacking lifting slide rails 620 is optionally but not limited to four, the stacking lifting linear motor 610 is installed on the base, and the stacking lifting linear motor 610 drives the frame body to slide on the stacking lifting slide rails 620, so that the mechanism above the frame body can be lifted integrally. It can be appreciated that, compared with the common belt driving mode of the motor, the stacking lifting linear motor 610 has the characteristics of larger torque, compact structure, high control precision and the like. The manner in which the stacking lifting linear motor 610 drives the frame body to slide on the stacking lifting sliding rail 620 is known to those skilled in the art, and may be implemented, which is not described in detail herein.

To facilitate use of the lamination apparatus 10, as shown in fig. 1-3, in some embodiments, the lamination apparatus 10 further includes a hold-down mechanism 500, the hold-down mechanism 500 including a hold-down blade 510 and a hold-down driver for driving the hold-down blade 510 toward or away from the lamination stage 100, an output of the hold-down driver being connected to the hold-down blade 510.

Specifically, the terminals of the pole pieces are arranged in a protruding manner, the pressing mechanism 500 is used for pressing the diaphragm and the terminals of the pole pieces, the number of the pressing mechanisms 500 is two, the number of the pressing drivers is not limited to two, the pressing drivers are mounted on the frame body, the pressing drivers are not limited to air cylinders, and the pressing drivers are arranged adjacent to the lamination table 100, so that the pressing knife 510 can press the diaphragm and the terminals of the pole pieces on the lamination table 100. Thereby further ensuring the normal operation of the lamination process.

In order to facilitate grabbing of the diaphragm, as shown in fig. 1 to 3, in some embodiments, a clamping jaw position groove is formed on the lamination table 100, a filling mechanism 400 for filling the clamping jaw position groove is disposed on the frame body, and the filling mechanism 400 is movably disposed in the clamping jaw position groove.

Specifically, the jaw position groove is used for a manipulator to insert so as to grasp the battery cell 700 after lamination is completed by the manipulator. However, during lamination, when the diaphragm is placed on the lamination table 100, the diaphragm may be recessed into the jaw position groove, and thus, problems such as wrinkling and collapsing of the diaphragm may occur during lamination. Therefore, the clamping jaw position groove is flexibly leveled by adopting the leveling mechanism 400, so that the clamping jaw is convenient to take away the battery cell 700, and the normal lamination process is ensured.

To facilitate use of the fill-in mechanism 400, as shown in fig. 3 of fig. 1, in some embodiments, the fill-in mechanism 400 includes a fill plate and a fill-in driver, an output of which is coupled to the fill plate.

Specifically, the position compensating driver is selectable but not limited to an air cylinder, the number and the shape of the position compensating plates are matched with those of the clamping jaw position grooves, and the position compensating driver drives the position compensating plates to lift, so that the normal operation of the lamination process can be facilitated.

Wherein it is understood that the number of patch panels and the number of patch drivers may be selected from, but not limited to, ten.

Example 3

In this embodiment, as shown in fig. 5, the XZ axis assembly 220 includes an X axis unit 221 and a Z axis unit 222, wherein an output end of the X axis unit 221 is connected to the Z axis unit 222, and an output end of the Z axis unit 222 is connected to the flattening member 210.

Specifically, the X-axis unit 221 drives the Z-axis unit 222 to move along the X-axis direction, so as to drive the flattening member 210 to move along the horizontal direction toward or away from the lamination table 100, and the Z-axis unit 222 drives the flattening member 210 to move along the Z-axis direction, so as to drive the flattening member 210 to move along the vertical direction toward or away from the lamination table 100.

To facilitate the use of the X-axis unit 221, as shown in fig. 5, in some embodiments, the X-axis unit 221 includes an X-axis linear motor 2211 and an X-axis slide 2212, and an output end of the X-axis linear motor 2211 is connected to a Z-axis unit 222, and the Z-axis unit 222 is slidably disposed on the X-axis slide 2212 to be close to or far from the lamination stage 100.

Specifically, the X-axis slide rail 2212 is mounted on a frame, the X-axis linear motor 2211 is mounted on the frame, and the X-axis linear motor 2211 drives the Z-axis unit 222 to slide on the X-axis slide rail 2212, so that the flattening member 210 may horizontally approach the lamination stage 100. It can be appreciated that, compared with the common belt driving mode of the motor, the X-axis linear motor 2211 has the characteristics of larger torque, compact structure, high control precision and the like. The manner in which the X-axis linear motor 2211 drives the Z-axis unit 222 to slide on the X-axis slide 2212 is known to those skilled in the art, and may be implemented, and is not described in detail herein.

To facilitate the use of the Z-axis unit 222, as shown in FIG. 5, in some embodiments, the Z-axis unit includes a Z-axis drive, the output of which is connected to the applanation element.

Specifically, the Z-axis driver is slidably connected to the X-axis slide rail 2212 through a slider, and the Z-axis driver is optionally but not limited to an air cylinder, and the manner in which the air cylinder drives the flattening member 210 to press down is known to those skilled in the art and can be implemented, which is not described in detail herein.

Example 4

This embodiment is similar to embodiment 3, except that the output end of the Z-axis unit 222 is connected to the X-axis unit 221, and the output end of the X-axis unit 221 is connected to the flattening member 210.

Example 5

This embodiment is similar to embodiment 3, except that in each flattening mechanism 200, the number of XZ-axis assemblies 220 and flattening members 210 is set to one, the output end of X-axis unit 221 is connected to a push-down driver, and the distance between flattening members 210 and lamination table 100 is smaller than the distance between pressing blade 510 and lamination table 100, flattening members 210 are set to a pressing plate, and the width of the pressing plate is smaller than the width of the diaphragm.

Specifically, since the X-axis unit 221 drives the pressing driver to horizontally approach the lamination stage 100, the pressing member 210 and the pressing blade 510 can move horizontally in synchronization, and since the pressing member 210 is closer to the lamination stage 100, the position of the pressing member 210 can be staggered from the position of the pressing blade 510, so that the pressing member 210 can integrally press the diaphragm, and further, generation of wrinkles can be prevented. Wherein the width of the platen may be two-thirds of the width of the diaphragm.

In the present utility model, unless explicitly specified 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, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

While the utility model has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the spirit and scope of the following claims.

Claims

1. A stacking device, characterized in that it comprises: at least two flattening mechanisms (200), a stacking table (100), and a cell lifting mechanism (300) for driving the stacking table (100) to rise or fall;

The output end of the cell lifting mechanism (300) is connected to the stacking table (100) so that the working plane position of the stacking is fixed.

At least two of the flattening mechanisms (200) are disposed on opposite sides of the stacking stage (100). Each flattening mechanism (200) includes a flattening member (210) and an XZ axis assembly (220) for driving the flattening member (210) closer to or away from the stacking stage (100) in the horizontal and vertical directions. The output end of each XZ axis assembly (220) is connected to one of the flattening members (210) to flatten the diaphragm on the stacking stage (100).

2. The stacking device according to claim 1, characterized in that, in each of the flattening mechanisms (200): the number of the XZ axis assemblies (220) and the number of the flattening members (210) are set to at least two.

3. The stacking device according to claim 1, characterized in that the XZ axis assembly (220) includes an X axis unit (221) and a Z axis unit (222), the output end of the X axis unit (221) is connected to the Z axis unit (222), and the output end of the Z axis unit (222) is connected to the flattening member (210).

4. The stacking device according to claim 3, characterized in that the X-axis unit (221) includes an X-axis linear motor (2211) and an X-axis slide rail (2212), the output end of the X-axis linear motor (2211) is connected to the Z-axis unit (222), and the Z-axis unit (222) is slidably disposed on the X-axis slide rail (2212) to be close to or away from the stacking stage (100).

5. The stacking device according to claim 1, characterized in that the flattening member (210) is provided with a pressure sensor for detecting the downward pressure value of the flattening member (210).

6. The stacking device according to claim 1, wherein the flattening member (210) is configured as a pressure claw.

7. The stacking device according to claim 1, wherein the cell lifting mechanism (300) includes a cell lifting linear motor, and the output end of the cell lifting linear motor is connected to the stacking table (100).

8. The stacking device according to claim 1, characterized in that it further includes a frame and a stacking lifting mechanism (600) for driving the frame to rise or fall, wherein the cell lifting mechanism (300) and each of the flattening mechanisms (200) are disposed on the frame, and the output end of the stacking lifting mechanism (600) is connected to the frame.

9. The stacking device according to claim 8, characterized in that the stacking lifting mechanism (600) includes a stacking lifting linear motor (610) and a stacking lifting slide rail (620), the output end of the stacking lifting linear motor (610) is connected to the frame, and the frame is slidably disposed on the stacking lifting slide rail (620).

10. The stacking apparatus according to claim 1, characterized in that it further includes a pressing mechanism (500), the pressing mechanism (500) including a pressing knife (510) and a pressing driver for driving the pressing knife (510) to approach or move away from the stacking stage (100), the output end of the pressing driver being connected to the pressing knife (510).