CN216597696U

CN216597696U - Fold a device, lamination machine and electric core processing equipment

Info

Publication number: CN216597696U
Application number: CN202123272773.XU
Authority: CN
Inventors: 李核志; 郭苗苗
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-24
Anticipated expiration: 2031-12-23

Abstract

The utility model provides a fold platform device, lamination machine and electric core processing equipment belongs to lithium battery manufacturing equipment technical field, wherein, folds a device and includes: a stage stacking mechanism; a blow structure adapted to blow air toward the folds of the membrane. The utility model provides a pair of fold platform device blows through the setting structure to utilize the structure of blowing to blow towards the folding department of diaphragm, guarantee that the diaphragm is folding a mechanism towards and is removing when carrying out the lamination, the folding department of diaphragm can not produce the fold, guarantees the quality of electric core, and need not the manual work and smooths the diaphragm, guarantees lamination efficiency.

Description

Fold a device, lamination machine and electric core processing equipment

Technical Field

The utility model relates to a lithium battery manufacturing equipment technical field, concretely relates to fold platform device, lamination machine and electric core processing equipment.

Background

The production process of the battery core in the lithium ion battery generally has two types, one is a winding process, and the other is a lamination process. The battery core of the laminated battery is formed by sequentially laminating the diaphragm, the negative plate, the diaphragm and the positive plate, the battery core produced by the lamination process has the advantages of high capacity and small internal resistance, and the lamination process can produce the battery cores in various shapes and can be set according to actual requirements. During lamination, the diaphragm and the pole piece are clamped and driven by the clamping mechanism to move towards the lamination table together to realize lamination, and the diaphragm is continuously Z-laminated to realize Z-shaped lamination. However, in the process of moving the diaphragm towards the lamination table, the diaphragm subjected to Z-lamination is prone to generate wrinkles, which affects the quality of a battery cell, and the diaphragm needs to be flattened manually when the wrinkles are generated, which affects the lamination efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the diaphragm among the prior art and producing the fold easily, influences the defect of electric core quality and lamination efficiency to a fold platform device, lamination machine and electric core processing equipment are provided.

In order to solve the above problem, the utility model provides a fold platform device, include: a stage stacking mechanism; a blow structure adapted to blow air toward the folds of the membrane.

Optionally, the air blowing structure is arranged on the stacking table mechanism.

Optionally, the lamination table mechanism comprises a lamination table and a pressing structure, and the pressing structure is movably arranged on the lamination table.

Optionally, the blowing structure is disposed on the pressing structure, and a blowing direction of the blowing structure is adapted to be opposite to a folding direction of the diaphragm.

Optionally, the air blowing structure is provided with a plurality of air blowing structures on the pressing structure, the plurality of air blowing structures are suitable for being arranged along the width direction of the diaphragm, and the plurality of air blowing structures can alternately blow air or blow air simultaneously.

Optionally, the pressing structure is provided with a plurality of pressing structures, the plurality of pressing structures are suitable for being arranged at intervals along the folding direction of the membrane, and the air blowing structure is suitable for being arranged on the pressing structure closest to the folding position of the incoming material of the membrane.

Optionally, the air blowing structure is arranged on the lamination table and is suitable for being arranged on one side, away from the membrane incoming material, of the lamination table.

Optionally, the stacking device further comprises an adjusting structure, the adjusting structure is connected with the air blowing structure, and the adjusting structure can adjust the air blowing height of the air blowing structure.

The utility model also provides a lamination machine, including foretell pile platform device.

Optionally, the lamination machine further comprises a diaphragm clamping device, and the diaphragm clamping device is used for clamping the diaphragm and the pole piece and driving the diaphragm to be folded towards the lamination table device.

The utility model also provides an electricity core processing equipment, including foretell lamination machine.

The utility model has the advantages of it is following:

1. the utility model provides a pair of fold platform device blows through the setting structure to utilize the structure of blowing to blow towards the folding department of diaphragm, guarantee that the diaphragm is folding a mechanism towards and is removing when carrying out the lamination, the folding department of diaphragm can not produce the fold, guarantees the quality of electric core, and need not the manual work and smooths the diaphragm, guarantees lamination efficiency.

2. The utility model provides a pair of fold platform device will blow the structure and fold the integrated setting of a mechanism, and the mode of setting of structure of blowing is simpler to be convenient for blow the structure and fold the cooperation of a mechanism and use, in order to guarantee the lamination quality.

3. The utility model provides a pair of fold platform device will blow the structure and set up in pressing down structurally, can drive the structure synchronous motion of blowing at the in-process that presses down the structure removal, can make the structure of blowing blow towards the folding department of diaphragm always.

4. The utility model provides a pair of fold platform device will blow the structure and be provided with a plurality ofly along the width direction interval of diaphragm to a plurality of structures of blowing can blow in turn or blow simultaneously, and the use of the structure of blowing is convenient nimble more, and has guaranteed the effect of smoothing to the folding department of diaphragm.

5. The utility model provides a pair of fold platform device will press the structure and be provided with a plurality ofly along the folding direction interval of diaphragm, guarantees to press the stability that the structure pressed the pole piece subassembly to blow the structure and set up in the structure of pressing that is closest to the folding department of diaphragm, guarantee that the structure of blowing directly blows to the folding department of diaphragm, the air current can not be blockked, and then guarantee to smooth the effect to the diaphragm.

6. The utility model provides a pair of fold platform device will blow the structure and set up in the lamination bench to set up in the one side that the diaphragm supplied materials was kept away from to the lamination bench, the structure of blowing sets up the position at the lamination bench and can not lead to the fact the influence to the lamination process.

7. The utility model provides a pair of fold platform device adjusts the structure through setting up and adjusts the height of blowing of structure to the structure of blowing, can make the height of blowing change along with the change of lamination height, guarantees that the structure of blowing is accurate towards the folding department of diaphragm and blows.

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 embodiments or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view showing an overall structure of a stage stacking apparatus provided in embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram showing a first state of lamination by the laminator provided in embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram showing a second state of lamination by the laminator provided in embodiment 2 of the present invention;

fig. 4 shows a schematic structure of a lamination machine in the lamination process in the prior art.

Description of reference numerals:

100. a stage stacking device; 110. a stage stacking mechanism; 111. a lamination table; 112. a pressing structure; 120. a blowing structure; 130. a diaphragm; 140. a positive plate; 150. a negative plate; 200. a diaphragm clamping device; 210. a first clamping mechanism; 220. a second clamping mechanism; 300. a membrane unwinding device; 310. and (4) unwinding the roller.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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 simplification of description, but do not indicate or imply that the device or element 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

During lamination, the separator clamping device 200 clamps and drives the separator 130 and the pole piece assembly composed of the positive pole piece 140 and the negative pole piece 150 to move together towards the lamination table 111 to realize lamination, and the separator 130 is continuous Z-lamination, so that wrinkles are easily generated at the folding position of the separator 130 as shown in fig. 4, and the quality of a battery cell is affected. In order to smooth out wrinkles at the folds of the membrane 130, the present embodiment provides a flatbed apparatus 100.

One embodiment of a lamination station apparatus 100, as shown in fig. 1, includes: a lamination mechanism 110 and a blowing structure 120, the lamination mechanism 110 is used for lamination, the blowing structure 120 is arranged on the lamination mechanism 110, and the blowing structure 120 can blow air toward the folding position of the membrane 130.

The air blowing structure 120 is arranged on the laminating table mechanism 110, so that air is blown towards the folding position of the diaphragm 130 by the air blowing structure 120, the folding position of the diaphragm 130 is not wrinkled when the diaphragm 130 moves towards the laminating mechanism for laminating, the quality of a battery cell is ensured, manual smoothing of the diaphragm 130 is not needed, and the laminating efficiency is ensured; and, will blow the structure and fold platform mechanism integrated setting, the mode of setting up of structure of blowing is simpler to be convenient for blow the structure and fold the cooperation of platform mechanism and use, in order to guarantee lamination quality.

Of course, the air blowing structure may be provided independently from the stacking mechanism, for example, the air blowing structure may be supported by a separate support rod or a support frame, and only the air blowing structure is required to blow air toward the folding position of the diaphragm.

In the embodiment, as shown in fig. 1, the stacking platform mechanism 110 includes a stacking platform 111 and a pressing structure 112, and the pressing structure 112 is movably disposed on the stacking platform 111, so that the pressing structure 112 can move to the uppermost of the pole piece assemblies on the stacking platform 111 for pressing during the stacking process.

As shown in fig. 1, the air blowing structure 120 is provided on the pressing structure 112, and the air blowing direction of the air blowing structure 120 is set opposite to the folding direction of the diaphragm 130. The air blowing structure 120 is disposed on the pressing structure 112, and the air blowing structure 120 is driven to move synchronously during the movement of the pressing structure 112, so that the air blowing structure 120 can blow air towards the folded portion of the membrane 130. Specifically, as shown in fig. 1, the pressing structures 112 are provided in plurality at intervals along the folding direction of the membrane 130, and the air blowing structures 120 are provided on the pressing structures 112 closest to the folding position of the membrane 130.

The pressing structures 112 are arranged at intervals along the folding direction of the diaphragm 130, so that the stability of the pressing structures 112 on the pole piece assembly is guaranteed, the air blowing structures 120 are arranged on the pressing structures 112 which are closest to the folding position of the diaphragm 130, the fact that the air blowing structures 120 blow air directly to the folding position of the diaphragm 130 is guaranteed, air flow cannot be blocked, and the smoothing effect of the diaphragm 130 is guaranteed.

It should be noted that, as shown in fig. 1, the folding direction of the membrane 130 is the horizontal left direction in fig. 1, the air blowing structure 120 is disposed on the right side surface of the pressing structure 112 located at the rightmost side, and the air blowing direction of the air blowing structure 120 is the horizontal right direction, so that a horizontal right pushing force can be applied to the folding position of the membrane 130 to tension the membrane 130 at the folding position to avoid generating wrinkles.

Of course, the air blowing structure 120 may be disposed on other sides of the pressing structure 112, and the air blowing direction of the air blowing structure 120 is only required to be disposed toward the folded portion of the diaphragm 130.

In the embodiment, the plurality of air blowing structures 120 are arranged on the pressing structure 112, and the plurality of air blowing structures 120 are arranged along the width direction of the membrane 130, so that the plurality of air blowing structures 120 can alternately blow air or blow air simultaneously, the air blowing structures 120 are more convenient and flexible to use, and the flattening effect of the folded part of the membrane 130 is ensured.

It should be noted that the width direction of the membrane 130 refers to a direction perpendicular to a direction in which the membrane 130 extends from the membrane roll, that is, a direction perpendicular to the drawing plane as shown in fig. 1.

It should be further noted that the width of the blowing structures 120 on the pressing structure 112 is adapted to the width of the membrane 130, that is, the blowing range of the blowing structures 120 is adapted to the width of the membrane 130, specifically, in the lamination process, due to different types of the produced electric cores, the width of the membrane 130 has various sizes, the width of the blowing structures 120 can be adapted to the size of the widest membrane 130, when the widest membrane 130 is used, all of the blowing structures 120 can be opened, and when the membrane 130 with the smaller width is used, a certain number of blowing structures 120 can be selectively opened, so that the blowing range of the blowing structures 120 is adapted to the width of the membrane 130.

Of course, the air blowing structure 120 may be disposed on the lamination stage 111. In order to ensure that the position of the blowing structure 120 on the lamination table 111 does not affect the lamination process, the blowing structure 120 is disposed on the side of the lamination table 111 away from the incoming material of the membrane 130. Moreover, an adjusting structure is connected with the air blowing structure 120, and the air blowing height of the air blowing structure 120 is adjusted by the adjusting structure, so that the air blowing height can be changed along with the change of the height of the laminated sheet, and the air blowing structure 120 is ensured to blow air towards the folding position of the membrane 130 accurately.

It should be noted that as the lamination progresses, the height of the lamination on the lamination table 111 gradually increases, and the height of the folded part of the membrane 130 also correspondingly increases, so that the blowing height of the blowing structure 120 is synchronously increased along with the increase of the folded part of the membrane 130 by arranging the adjusting structure, and the blowing structure 120 is ensured to blow towards the folded part of the membrane 130 at all times. In particular, the adjustment structure may be a telescopic structure, for example an electric cylinder.

Example 2

An embodiment of the lamination machine shown in fig. 1 to 3 includes the lamination table device 100 of example 1, and further includes a membrane clamping device 200 and a membrane unwinding device 300. The membrane unwinding device 300 can discharge membrane rolls, the membrane 130 after discharging extends towards the platform stacking device 100, the membrane clamping device 200 is located between the platform stacking device 100 and the membrane unwinding device 300, and the membrane clamping device 200 is used for clamping the electrode plate assembly and driving the membrane 130 to fold towards the platform stacking device 100. In the lamination process, the air blowing structure 120 of the lamination device 100 blows air towards the folding position of the diaphragm 130, so that the folding position of the diaphragm 130 is not wrinkled, the quality of an electric core is ensured, the diaphragm 130 is not required to be flattened manually, and the lamination efficiency is ensured.

As shown in fig. 1 to 3, the pole piece assembly includes a separator 130, and a positive electrode sheet 140 and a negative electrode sheet 150 respectively disposed on upper and lower sides of the separator 130, and a separator clamping device 200 is clamped on outer surfaces of the positive electrode sheet 140 and the negative electrode sheet 150. Specifically, as shown in fig. 1 to 3, the separator clamping device 200 includes a first clamping mechanism 210 and a second clamping mechanism 220, the first clamping mechanism 210 and the second clamping mechanism 220 are disposed opposite to each other, the pole piece assembly is located between the first clamping mechanism 210 and the second clamping mechanism 220, that is, the first clamping mechanism 210 is attached to the outer surface of the positive pole piece 140, and the second clamping mechanism 220 is attached to the outer surface of the negative pole piece 150, so that the pole piece assembly is clamped by the first clamping mechanism 210 and the second clamping mechanism 220.

It should be noted that the outer surface of the positive electrode sheet 140 is the upper surface of the positive electrode sheet 140 as shown in fig. 1 to 3, and the first clamping mechanism 210 is disposed above the positive electrode sheet 140; the outer surface of the negative electrode sheet 150 is the lower surface of the negative electrode sheet 150 as shown in fig. 1 to 3, and the second clamping mechanism 220 is disposed below the negative electrode sheet 150.

In the present embodiment, as shown in fig. 1 to 3, each of the first clamping mechanism 210 and the second clamping mechanism 220 includes a pair of clamping blocks, and the pair of clamping blocks are oppositely spaced along the length direction of the diaphragm 130.

In this embodiment, as shown in fig. 1 to 3, the membrane unwinding device 300 includes an unwinding roller 310 and an unwinding driving structure, the membrane roll is disposed on the unwinding roller 310, and the unwinding driving structure drives the unwinding roller 310 to rotate, so as to discharge the membrane roll on the unwinding roller 310. Specifically, the unwinding driving structure is a motor, and a motor shaft is connected to the unwinding roller 310.

Example 3

The embodiment provides a specific implementation manner of a battery cell processing device, and includes the lamination machine of embodiment 2. Utilize this lamination machine to carry out the lamination, blow towards the folding department of diaphragm 130 through the structure 120 of blowing of folding platform device 100, guarantee that the folding department of diaphragm 130 can not produce the fold, guarantee the quality of electric core to need not the manual work and smooth diaphragm 130, guarantee lamination efficiency.

In the lamination using the lamination machine of example 2, first, as shown in fig. 2, the positive electrode tab 140 and the negative electrode tab 150 are conveyed to the position of the separator clamping device 200, so that the positive electrode tab 140 and the negative electrode tab 150 are separately disposed on both sides of the separator 130, and as shown in fig. 3, the first clamping mechanism 210 and the second clamping mechanism 220 clamp the tab assembly on both sides of the positive electrode tab 140 and the negative electrode tab 150; then, as shown in fig. 1, the membrane clamping device 200 clamps the pole piece assembly to move towards the lamination table 111 to perform lamination, at this time, the air blowing structure 120 blows air towards the folded position of the membrane 130 to ensure that no wrinkles are generated at the folded position of the membrane 130, when the membrane clamping device 200 drives the pole piece assembly to move to the position corresponding to the lamination table 111, the pressing structure 112 moves away, and the membrane clamping device 200 drives the pole piece assembly to be placed on the lamination table 111; finally, the pressing structure 112 is pressed over the pole piece assembly, and the diaphragm clamping device 200 is removed and returned to the original position for the next clamping.

According to the above description, the present patent application has the following advantages:

1. the air blowing structure is used for blowing air towards the folding position of the diaphragm, so that the folding position of the diaphragm can not generate folds when the diaphragm moves towards the lamination mechanism for lamination, the quality of a battery cell is ensured, the diaphragm is not required to be flattened manually, and the lamination efficiency is ensured;

2. the air blowing structure is arranged on the pressing structure, and the air blowing structure is driven to synchronously move in the moving process of the pressing structure, so that the air blowing structure can blow air towards the folded position of the diaphragm all the time;

3. the air blowing structure is arranged in a plurality of intervals along the width direction of the diaphragm, and the air blowing structures can alternately blow air or blow air simultaneously, so that the air blowing structure is more convenient and flexible to use, and the flattening effect on the folding part of the diaphragm is ensured.

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 invention.

Claims

1. A stage stacking apparatus, comprising:

a stacking mechanism (110);

a blow structure (120), the blow structure (120) being adapted to blow air towards the folds of the membrane (130).

2. The laminating station apparatus according to claim 1, wherein said blowing structure (120) is provided on said laminating station mechanism (110).

3. A laminating station device according to claim 1 or 2, characterized in that the laminating station mechanism (110) comprises a laminating station (111) and a pressing structure (112), the pressing structure (112) being movably arranged on the laminating station (111).

4. A lamination station device according to claim 3, wherein the blowing structure (120) is arranged on the pressing structure (112) and the blowing direction of the blowing structure (120) is adapted to be arranged opposite to the folding direction of the membrane (130).

5. Stacking station device according to claim 4, characterized in that the blowing structure (120) is provided in plurality on the pressing structure (112), a plurality of blowing structures (120) are adapted to be provided along the width direction of the membrane (130), a plurality of blowing structures (120) can blow alternately or simultaneously.

6. Stacking station device according to claim 4, characterized in that the pressing structure (112) is provided in plurality, a plurality of the pressing structures (112) being adapted to be arranged at intervals along the folding direction of the membrane (130), the blowing structure (120) being adapted to be arranged on the pressing structure (112) closest to the folding of the incoming material of the membrane (130).

7. A lamination station device according to claim 3, wherein said blowing structure (120) is arranged on said lamination station (111) and is adapted to be arranged on a side of said lamination station (111) remote from the incoming material of the membrane (130).

8. The laminating station device according to claim 7, further comprising an adjusting structure connected with the air blowing structure (120), wherein the adjusting structure can adjust the air blowing height of the air blowing structure (120).

9. A lamination machine, characterized in that it comprises a lamination station device (100) according to any one of claims 1 to 8.

10. The lamination machine according to claim 9, further comprising a membrane clamping device (200), the membrane clamping device (200) being adapted to clamp the membrane (130) and the pole pieces and to bring the membrane (130) to fold towards the lamination station device (100).

11. A cell machining apparatus, characterized by comprising the lamination machine of claim 9 or 10.