Lamination mechanism and lamination equipment

Abstract

The utility model discloses a lamination mechanism and lamination equipment, and relates to the technical field of battery core processing, the lamination mechanism comprises a lamination table and a pressing knife assembly, the lamination table is provided with a table top and is used for alternately stacking diaphragms and pole pieces, the table top is provided with a pressing knife pressing position, and the pressing knife pressing position is provided with an elastic structure; a pressing cutter of the pressing cutter assembly is movably arranged on the lamination table and used for being close to or away from the pressing cutter abutting position; when the pressing knife abuts against the pressing knife abutting position, the elastic structure elastically deforms so that the pressing knife can be attached to the diaphragm. According to the technical scheme, the pressing cutter can be attached to the diaphragm, and the abutting effect of the pressing cutter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery cell processing, particularly to a lamination mechanism and lamination equipment. BACKGROUND

[0002] In the related art, in the production process of the battery cell structure, the positive and negative electrode plates are sequentially stacked on the lamination table of the lamination mechanism, wherein the diaphragm reciprocates at the lamination table to fold and form a Z-shaped structure to separate the positive and negative electrode plates by the diaphragm. In this process, the pressure knife assembly of the lamination mechanism is used to extend towards the lamination table to press the diaphragm or the electrode plate on the lamination table, and the pressure knife will affect the lamination quality of the battery cell structure when pressing the diaphragm due to poor adhesion with the diaphragm. SUMMARY

[0003] The main purpose of the utility model is to provide a lamination mechanism and lamination equipment, which aims to make the pressure knife and the diaphragm adhere to each other and improve the pressing effect of the pressure knife.

[0004] To achieve the above-mentioned purpose, the lamination mechanism provided by the utility model comprises:

[0005] a lamination table having a table top for alternately stacking diaphragms and electrode plates, the table top having a pressure knife pressing position provided with an elastic structure; and

[0006] a pressure knife assembly, the pressure knife of the pressure knife assembly being movably arranged on the lamination table for approaching or moving away from the pressure knife pressing position;

[0007] When the pressure knife is pressed on the pressure knife pressing position, the elastic structure is elastically deformed to make the pressure knife and the diaphragm adhere to each other.

[0008] In an embodiment, at least part of the elastic structure is protruded from the table top.

[0009] In an embodiment, the pressure knife pressing position is provided with a groove, and the elastic structure is arranged in the groove and at least partially protrudes from the groove.

[0010] In an embodiment, the area of the elastic structure is greater than or equal to the area of the pressure contact end of the pressure knife.

[0011] In an embodiment, the lamination table is provided with a vacuum suction hole, and the vacuum suction hole is used to generate negative pressure to adsorb the diaphragm.

[0012] In an embodiment, the vacuum suction hole is formed in the elastic structure;

[0013] and / or, the vacuum suction hole is formed in the table top.

[0014] In an embodiment, the opposite ends of the lamination table are respectively provided with two pairs of the pressing knife pressing positions, each pair of the pressing knife pressing positions is arranged at the end of the lamination table, and each of the pressing knife pressing positions is provided with the elastic structure.

[0015] The lamination device is provided with two pressing knife assemblies, and the two pressing knife assemblies are arranged at the opposite ends of the lamination table, each of the pressing knife assemblies comprises a pair of the pressing knives, and each of the pressing knives corresponds to the pressing knife pressing position.

[0016] In an embodiment, the pressing knife assembly comprises two pressing knife mechanisms, and the two pressing knife mechanisms are respectively connected with the two pressing knives in a transmission mode, and are used for driving the pressing knives to move towards or away from the pressing knife pressing position.

[0017] In an embodiment, the pressing knife mechanism comprises:

[0018] a first driving member, which is connected with the pressing knife in a transmission mode, and is used for driving the pressing knife to move in a vertical direction towards or away from the pressing knife pressing position; and

[0019] a second driving member, which is connected with the first driving member in a transmission mode, and is used for driving the first driving member to drive the pressing knife to move in a horizontal direction towards or away from the pressing knife pressing position.

[0020] The utility model also provides a kind of lamination equipment, including any one of the lamination mechanism described above, the lamination mechanism comprises:

[0021] laminating table, the laminating table has table top, for alternately laminating diaphragm and pole piece, the table top has pressing knife pressing position, and the pressing knife pressing position is provided with elastic structure;And

[0022] pressing knife assembly, the pressing knife of the pressing knife assembly is movably arranged in the laminating table, for being close to or away from the pressing knife pressing position;

[0023] when the pressing knife is pressed on the pressing knife pressing position, the elastic structure is elastically deformed, so that the pressing knife and the diaphragm are attached.

[0024] The technical scheme of the utility model improves the pressing effect of the pressing knife and guarantees the lamination quality of the battery structure by setting the elastic structure on the pressing knife pressing position of the lamination table table top, when the pressing knife of the pressing knife assembly extends towards the lamination table to press the diaphragm, the elastic structure can be elastically deformed under the action of the downward pressing force of the pressing knife, and thereby generates upward elastic force, to promote the pressing knife and the diaphragm to be attached to each other. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described in the following only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0026] Figure 1 The structure schematic diagram of an embodiment of the lamination mechanism provided by the present application is shown in the figure.

[0027] Figure 2 The structure schematic diagram of an embodiment of the lamination mechanism provided by the present application is shown in the figure. Figure 1 The partial structure diagram of the lamination mechanism in the figure.

[0028] Figure 3 The partial structure diagram of the lamination mechanism in the figure. Figure 2 The enlarged view of A in the figure.

[0029] Figure 4 The partial structure diagram of the lamination mechanism in the figure. Figure 1 The partial structure diagram of the lamination mechanism in the figure.

[0030] Explanation of the reference numerals:

[0031] 100, lamination mechanism; 10, lamination table; 11, groove; 12, elastic structure; 13, vacuum suction hole; 20, pressure knife assembly; 21, pressure knife; 22, pressure knife mechanism; 221, first driving member; 222, second driving member.

[0032] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0034] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] In the related art, during the production of battery cell structures, the positive and negative electrode sheets are often stacked sequentially on the stacking table of a stacking mechanism. The separator is folded back and forth on the stacking table to form a Z-shaped structure, separating the positive and negative electrode sheets through the separator. During this process, the press blade assembly of the stacking mechanism is used to extend toward the stacking table to press against the separator or electrode sheets on the stacking table. However, when the press blade presses against the separator, it may not properly adhere to the separator, affecting the stacking quality of the battery cell structure.

[0037] The present utility model provides a lamination mechanism 100 .

[0038] See also Figures 1 to 4 In one embodiment of the present invention, the lamination mechanism 100 includes:

[0039] A lamination table 10, wherein the lamination table 10 has a table surface for alternately stacking diaphragms and pole pieces, the table surface has a pressing position for a knife, and the pressing position for a knife is provided with an elastic structure 12; and

[0040] A press knife assembly 20, wherein a press knife 21 of the press knife assembly 20 is movably disposed on the lamination table 10, and is used to move closer to or further away from the press knife pressing position;

[0041] When the pressing blade 21 is pressed against the pressing blade pressing position, the elastic structure 12 is elastically deformed so that the pressing blade 21 and the diaphragm are fitted together.

[0042] The technical solution of the present invention is to provide an elastic structure 12 at the pressing position of the pressing knife on the surface of the lamination table 10. When the pressing knife 21 of the pressing knife assembly 20 extends toward the lamination table 10 to press the diaphragm, the elastic structure 12 can be elastically deformed under the action of the downward pressing force of the pressing knife 21, thereby generating an upward elastic force to promote the pressing knife 21 and the diaphragm to fit well with each other, improve the pressing effect of the pressing knife 21, and ensure the lamination quality of the battery cell structure.

[0043] Wherein, the elastic structure 12 can be entirely composed of elastic material, or the part structure facing the pressing knife assembly 20 is provided with elastic material, or the part structure away from the pressing knife assembly 20 is provided with elastic element such as spring, the specific embodiment can be set according to actual demand, which is not limited here.

[0044] Please refer to Figures 2 to 4 In the embodiment of the utility model, at least part of the elastic structure 12 is convex on the table surface.

[0045] In this way, the pressing knife 21 of the pressing knife assembly 20 can be conveniently matched with the elastic structure 12 after extending towards the lamination table 10.

[0046] Please refer to Figure 4 In the embodiment of the utility model, the pressing knife pressing position is provided with a groove 11, the elastic structure 12 is arranged in the groove 11, and at least part of the elastic structure 12 protrudes from the groove 11.

[0047] Wherein, by setting the groove 11 on the table surface of the lamination table 10, the elastic structure 12 can be conveniently installed, and the position stability of the elastic structure 12 is improved.

[0048] In the embodiment of the utility model, the area of the elastic structure 12 is greater than or equal to the area of the crimping end of the pressing knife 21.

[0049] In this way, the relative action area between the pressing knife 21 and the elastic structure 12 can be guaranteed, so that the pressing knife 21 of the pressing knife assembly 20 can be conveniently matched with the elastic structure 12 after extending towards the lamination table 10.

[0050] Please refer to Figure 3 And Figure 4 In the embodiment of the utility model, the lamination table 10 is provided with a vacuum suction hole 13, and the vacuum suction hole 13 is used to generate negative pressure to adsorb the diaphragm.

[0051] In this way, the fixing effect of the lamination table 10 on the diaphragm during lamination can be improved, the risk of folding and warping of the bottom diaphragm is reduced, and the lamination quality of the battery structure is protected.

[0052] Please refer to Figure 3 And Figure 4 In the embodiment of the utility model, the vacuum suction hole 13 is formed in the elastic structure 12.

[0053] Specifically, the elastic structure 12 can be provided with a through hole in the vertical direction to form the vacuum suction hole 13, and the diaphragm is adsorbed and fixed through the vacuum suction hole 13. Further, the vacuum channel is formed in the laminated table 10, one end of the vacuum channel is communicated to the vacuum suction hole 13, and the other end can be but not limited to communicated to the vacuum pump, and the vacuum pump is used to form negative pressure in the vacuum channel and the vacuum suction hole 13 to realize the function of vacuum adsorption.

[0054] In some embodiments, a plurality of vacuum suction holes 13 can be provided on the elastic structure 12, and the plurality of vacuum suction holes 13 are arranged in an array. Among them, all the elastic structures 12 of the laminated mechanism 100 can be provided with vacuum suction holes 13, or part of the elastic structures 12 of the laminated mechanism 100 can be provided with vacuum suction holes 13, for example, only the elastic structure 12 located on one side of the laminated table 10 is provided with a vacuum suction hole 13. The specific embodiment can be set according to the actual demand, which is not limited here.

[0055] Please refer to Figure 3 and Figure 4 In the embodiment of the utility model, the vacuum suction hole 13 is formed in the table top.

[0056] Specifically, the table top of the laminated table 10 can be provided with a plurality of vacuum suction holes 13, and the plurality of vacuum suction holes 13 can be arranged in an array, and the vacuum channel communicated with the vacuum suction hole 13 is formed in the laminated table 10, so that the vacuum pump or other negative pressure mechanism can form negative pressure at the vacuum suction hole 13 through the vacuum channel, thereby realizing the function of vacuum adsorption of the diaphragm.

[0057] Among them, all the regions on the table top can be uniformly distributed with vacuum suction holes 13, or part of the regions on the table top, such as the circumferential region, can be locally distributed with vacuum suction holes 13. The specific embodiment can be set according to the actual demand, which is not limited here.

[0058] Please refer to Figures 2 to 4 In the embodiment of the utility model, the laminated table 10 is provided with two pairs of presser knife pressing positions at the opposite ends, each pair of presser knife pressing positions is arranged at the end of the laminated table 10, and each presser knife pressing position is provided with an elastic structure 12.

[0059] The presser knife assembly 20 is provided with two, and the two presser knife assemblies 20 are arranged at the opposite ends of the laminated table 10, and each presser knife assembly 20 includes a pair of presser knives 21, and each presser knife 21 corresponds to a presser knife pressing position.

[0060] In actual production process, two pressing knives 21 of each pressing knife assembly 20 are used to reciprocate alternately above the table surface of the lamination table 10, and the extended pressing knife 21 is used to press against the diaphragm to enable the diaphragm to reciprocate at the lamination table 10 for Z-shaped folding.

[0061] Please refer to Figures 1 to 4 In the embodiment of the utility model, the pressing knife assembly 20 includes two pressing knife mechanisms 22, and the two pressing knife mechanisms 22 are respectively in transmission connection with the two pressing knives 21 for driving the pressing knives 21 to move towards or away from the pressing position.

[0062] The pressing knife 21 can be extended in the horizontal direction above the lamination table 10 under the driving of the pressing knife mechanism 22 and is arranged opposite to the pressing position, then the pressing knife 21 moves downward and presses against the diaphragm, and the elastic structure 12 is elastically deformed with the downward movement of the pressing knife 21, at this time, the pressure applied by the pressing end of the pressing knife 21 to the diaphragm can be buffered by the elastic structure 12, and the pressing knife 21 can be well attached to the diaphragm to facilitate the subsequent lamination of the diaphragm. After the lamination of the diaphragm is completed, the pressing knife 21 can be extracted in the horizontal direction and moved to the side of the lamination table 10 to wait for the next lamination step.

[0063] Please refer to Figure 1 In the embodiment of the utility model, the pressing knife mechanism 22 includes:

[0064] The first driving member 221 is in transmission connection with the pressing knife 21 to drive the pressing knife 21 to move in the vertical direction towards or away from the pressing position, and

[0065] The second driving member 222 is in transmission connection with the first driving member 221 to drive the first driving member 221 to drive the pressing knife 21 to move in the horizontal direction towards or away from the pressing position.

[0066] Specifically, the pressing knife 21 of the pressing knife assembly 20 can be installed on a pressing knife seat, the first driving member 221 is arranged on the side of the lamination table 10 and is in transmission connection with the pressing knife seat to drive the pressing knife seat and the pressing knife 21 to move up and down in the vertical direction. The second driving member 222 is located below the side of the lamination table 10 and is in transmission connection with the first driving member 221 to drive the first driving member 221 to drive the pressing knife seat and the pressing knife 21 to move in the horizontal direction towards or away from the lamination table 10. In some embodiments, a base is further arranged below the side of the lamination table 10, and a slide rail is arranged on the top side of the base, and the pressing knife seat or the first driving member 221 can reciprocate along the length direction of the slide rail, thereby improving the movement stability of the pressing knife mechanism 22.

[0067] The laminating equipment also comprises a laminating mechanism 100, and the specific structure of the laminating mechanism 100 is referred to the above-mentioned embodiments.

[0068] The above-mentioned is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the technical concept of the utility model, or the contents of the utility model specification and the drawings are included in the patent protection range of the utility model.

Claims

1. A lamination mechanism characterized by, The application relates to a laminating mechanism, comprising: a laminating table having a table surface for alternately laminating diaphragms and pole pieces, the table surface being provided with a pressing-knife pressing position, the pressing-knife pressing position being provided with an elastic structure; and a pressing-knife assembly, the pressing-knife of the pressing-knife assembly being movably arranged on the laminating table and being used for moving close to or away from the pressing-knife pressing position; when the pressing-knife is pressed on the pressing-knife pressing position, the elastic structure is elastically deformed to make the pressing-knife and the diaphragm adhere to each other. At least part of the elastic structure is protruded on the table surface.

2. The stacker mechanism of claim 1, wherein, The pressing-knife pressing position is provided with a groove, the elastic structure is arranged in the groove and at least part of the elastic structure is protruded from the groove.

3. The stacker mechanism of claim 2, wherein, The area of the elastic structure is greater than or equal to the area of the pressing end of the pressing-knife.

4. The stacker mechanism of claim 1, wherein, The laminating table is provided with a vacuum suction hole, the vacuum suction hole is used for generating negative pressure to adsorb the diaphragm.

5. The lamination mechanism of any one of claims 1 to 4, wherein The vacuum suction hole is formed in the elastic structure; 6. The stacker mechanism of claim 5, wherein, and / or, the vacuum suction hole is formed in the table surface. The laminating table is provided with two pairs of pressing-knife pressing positions at two opposite ends respectively, each pair of pressing-knife pressing positions is arranged at the end of the laminating table in a spaced mode, and each pressing-knife pressing position is provided with an elastic structure.

7. The lamination mechanism of any one of claims 1 to 4, wherein The pressing-knife assembly is provided with two pressing-knife assemblies, the two pressing-knife assemblies are arranged at two opposite ends of the laminating table respectively, each pressing-knife assembly comprises a pair of pressing-knives, and each pressing-knife corresponds to a pressing-knife pressing position. The pressing-knife assembly comprises two pressing-knife mechanisms, the two pressing-knife mechanisms are respectively connected with the two pressing-knives in a transmission mode and are used for driving the pressing-knives to move towards or away from the pressing-knife pressing position.

8. The stacker mechanism of claim 7, wherein, The pressing-knife mechanism comprises:

9. The stacker mechanism of claim 8, wherein, a first driving member, the first driving member is connected with the pressing-knife in a transmission mode and is used for driving the pressing-knife to move along a vertical direction towards or away from the pressing-knife pressing position; and a second driving member, the second driving member is connected with the first driving member in a transmission mode and is used for driving the first driving member to drive the pressing-knife to move along a horizontal direction towards or away from the pressing-knife pressing position. The application further relates to a laminating mechanism comprising any one of the laminating mechanisms according to claims 1 to 9.

10. A lamination apparatus characterized by, ​

Images