CN217134460U

CN217134460U - Lamination device and battery production line

Info

Publication number: CN217134460U
Application number: CN202220773753.6U
Authority: CN
Inventors: 曹平
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-08-05
Anticipated expiration: 2032-04-01

Abstract

The utility model provides a lamination device and battery production line, wherein the lamination device includes: the first feeding structure and the second feeding structure are oppositely arranged; the laminating table is arranged between the first feeding structure and the second feeding structure and comprises a first laminating surface facing the first feeding structure and a second laminating surface facing the second feeding structure; the first pressing structure is movably arranged on the first lamination surface, and the second pressing structure is movably arranged on the second lamination surface; and the driving mechanism is connected with the lamination table and is suitable for driving the lamination table to move between the first feeding structure and the second feeding structure in a reciprocating mode. In the structure, the driving mechanism can stack two bundles of materials simultaneously in the process of driving the lamination table to move back and forth, so that one lamination device can process two bundles of materials, the production efficiency is greatly improved, and the defect that the production efficiency of a lamination machine in the prior art is low is overcome.

Description

Lamination device and battery production line

Technical Field

The utility model relates to a battery production facility technical field, concretely relates to lamination device and battery production line.

Background

Lamination is one of the processes for the production of lithium batteries. In the laminating machine in the prior art, the material belt freely falls and is overlapped, and the horizontal reciprocating movement is carried out to form the lamination. But the lamination machine can only carry out lamination processing to a bunch of material area once, and production efficiency is lower.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the lower defect of lamination machine production efficiency among the prior art to a lamination device and battery production line are provided.

In order to solve the above problem, the utility model provides a lamination device, include: the first feeding structure and the second feeding structure are oppositely arranged; the laminating table is arranged between the first feeding structure and the second feeding structure and comprises a first laminating surface facing the first feeding structure and a second laminating surface facing the second feeding structure; the first pressing structure is movably arranged on the first lamination surface, and the second pressing structure is movably arranged on the second lamination surface; and the driving mechanism is connected with the lamination table and is suitable for driving the lamination table to move between the first feeding structure and the second feeding structure in a reciprocating manner.

Optionally, the lower end of the lamination table is a fixed end, the upper end of the lamination table is arranged in a swinging mode, and the driving mechanism drives the upper end of the lamination table to swing.

Optionally, the driving mechanism is a motor, and the motor is in driving connection with the lower end of the lamination table.

Optionally, the material is formed by compounding a pole piece and a diaphragm, and the pole piece is arranged on the diaphragm at intervals.

Optionally, the first pressing structure includes two first pressing knives, and the two first pressing knives are respectively located on the upper side and the lower side of the first lamination surface.

Optionally, the second pressing structure includes two second pressing knives, and the two second pressing knives are respectively located on the upper side and the lower side of the second lamination surface.

Optionally, the stacking device further comprises a detection structure adapted to detect a stacking position of the materials on the first stacking surface and the second stacking surface.

Optionally, the detection structure includes a first CCD detection assembly and a second CCD detection assembly, the first CCD detection assembly is disposed opposite to the first lamination surface, and the second CCD detection assembly is disposed opposite to the second lamination surface.

Optionally, the lamination device further comprises a controller, the controller is connected with the detection structure and the driving mechanism, and the controller is suitable for controlling the driving mechanism to drive the movement distance of the lamination table according to the detection result of the detection structure.

Optionally, the first feeding structure and the second feeding structure are both feeding rollers.

The utility model also provides a battery production line, including foretell lamination device.

The utility model has the advantages of it is following:

utilize the technical scheme of the utility model, the lamination platform removes between first feed structure and second feed structure, when the lamination platform removed to being close to first feed structure, second feed structure's material was stretched out one section distance. When the lamination platform is close to the second feeding structure, the stretched materials of the second feeding structure are bent under the action of gravity and are pressed and stacked through the second pressing structure, and meanwhile, the materials of the first feeding structure are stretched out for a certain distance. When the lamination platform is close to the first feeding structure again, the stretched materials of the first feeding structure are bent under the action of gravity and are pressed and stacked through the first pressing structure, and meanwhile, the materials of the second feeding structure are stretched out for a distance again. Actuating mechanism can pile up two bundles of materials simultaneously at drive lamination platform reciprocating motion's in-process for a lamination device can be handled two bundles of materials, has improved production efficiency greatly. Consequently the technical scheme of the utility model the lower defect of lamination machine production efficiency among the prior art has been solved.

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 shows a schematic view of a lamination station of a stacking apparatus of the present invention moving towards a first loading configuration; and

fig. 2 shows a schematic view of the lamination station of the stacking apparatus of the present invention moving towards the second feeding structure.

Description of reference numerals:

10. a first feeding structure; 20. a second feeding structure; 30. a lamination table; 31. a first lamination surface; 32. a second lamination surface; 40. a first pressing structure; 50. a second pressing structure; 60. a first CCD detection assembly; 70. and a second CCD detection component.

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.

As shown in fig. 1 and 2, the lamination device of the present embodiment includes a first feeding structure 10 and a second feeding structure 20, which are oppositely disposed, a lamination table 30, a first pressing structure 40, a second pressing structure 50, and a driving mechanism. Wherein the lamination table 30 is arranged between the first and

second feeding structures

10, 20, the lamination table 30 comprising a first lamination face 31 facing the first feeding structure 10 and a second lamination face 32 facing the second feeding structure 20. The first pressing structure 40 is movably disposed on the first lamination surface 31, and the second pressing structure 50 is movably disposed on the second lamination surface 32. The driving mechanism is coupled to the lamination table 30 and adapted to drive the lamination table 30 to reciprocate between the first and

second loading structures

10 and 20.

With the solution of the present embodiment, the lamination station 30 moves between the first feeding structure 10 and the second feeding structure 20, and when the lamination station 30 moves close to the first feeding structure 10, the material of the second feeding structure 20 is stretched out by a certain distance. When the lamination table 30 approaches to the second feeding structure 20, the stretched material of the second feeding structure 20 is bent under the gravity and is compressed and stacked by the second pressing structure 50, and at the same time, the material of the first feeding structure 10 is stretched out by a certain distance. When the lamination table 30 is close to the first feeding structure 10 again, the stretched material of the first feeding structure 10 is bent under the action of gravity and is pressed and stacked by the first pressing structure 40, and at the same time, the material of the second feeding structure 20 is stretched out a distance again. Actuating mechanism can pile up two bundles of materials simultaneously at drive lamination platform 30 reciprocating motion's in-process for a lamination device can be handled two bundles of materials, has improved production efficiency greatly. Therefore, the technical scheme of the embodiment overcomes the defect of low production efficiency of the laminating machine in the prior art.

It should be noted that the first feeding structure 10 and the second feeding structure 20 described above refer to a structure for feeding the strip-shaped material to the lamination station 30. Further, the lamination table 30 is disposed downstream of the first and

second loaders

10 and 20, and in the present embodiment, the lamination table 30 is disposed between the first and

second loaders

10 and 20, and the lamination table 30 is located at a lower position of the first and

second loaders

10 and 20.

The first lamination surface 31 and the second lamination surface 32 refer to surfaces on which materials are stacked. In this embodiment, the first lamination surface 31 and the second lamination surface 32 are respectively located on two sides of the lamination table 30, and the first lamination surface 31 faces the first feeding structure 10, and the second lamination surface 32 faces the second feeding structure 20. The materials conveyed by the first feeding structure 10 are laminated on the first laminating surface 31, and the materials conveyed by the second feeding structure 20 are laminated on the second laminating surface 32.

Further, the structure shown by the dotted line in fig. 1 and 2 is a material. Specifically, the material in this embodiment is formed by compounding a pole piece and a diaphragm. The pole pieces comprise a positive pole piece and a negative pole piece, and the positive pole piece and the negative pole piece are respectively positioned on two sides of the diaphragm. The pole piece sets up at the diaphragm interval on, consequently when the material was pulled out a section distance, the weight of pole piece and diaphragm was heavier, and pole piece and diaphragm turn over under the effect of gravity. The first and

second swaging structures

40 and 50 compress the portions of the diaphragm between adjacent pole pieces to effect lamination.

The compounding mode between the pole piece and the diaphragm of the material can be thermal compounding, adhesive compounding and the like.

Of course, in some embodiments not shown, the material may also comprise only a membrane.

As shown in fig. 1 and 2, in the solution of the present embodiment, the lower end of the lamination table 30 is a fixed end, the upper end of the lamination table 30 is swingably disposed, and the driving mechanism drives the upper end of the lamination table 30 to swing. Specifically, the lower end of the lamination stage 30 is connected to the ground or the frame by a hinge so that the upper end of the lamination stage 30 is swingably disposed.

As can be seen in connection with fig. 1, the upper end of the lamination stage 30 has a swing angle θ with respect to a vertical line, which may preferably be in the range of 30 to 40 °.

Preferably, the drive mechanism is a motor drivingly connected to the lower end of the lamination station 30. Specifically, a motor shaft of the motor may be directly connected to the rotation shaft of the lamination stage 30, and the motor may preferably be a stepping motor, and the swing angle of the upper end of the lamination stage 30 is controlled by controlling the angle of rotation of the motor shaft of the stepping motor.

Of course, it is also possible to connect the motor to the rotating shaft of the lamination table 30 via a transmission member, or to drive the upper end of the lamination table 30 to swing via another conventional driving mechanism.

As shown in fig. 1 and fig. 2, in the technical solution of the present embodiment, the first pressing structure 40 includes two first pressing knives, and the two first pressing knives are respectively located at the upper and lower sides of the first lamination surface 31. Specifically, the first pressing knife is used for pressing the stacked materials.

Further, the two first pressing knives are respectively located on the upper side and the lower side of the first lamination surface 31, the first pressing knife located on the upper side is used for pressing the upper side of the stacked materials, and the first pressing knife located on the lower side is used for pressing the lower side of the stacked materials. Two first pressing knives are movably arranged on the first laminating surface 31 through a driving structure, the driving structure can enable the first pressing knives to compress stacked materials or separate the stacked materials, and the driving structure can realize the drawing and pulling of the first pressing knives.

As shown in fig. 1 and fig. 2, in the technical solution of the present embodiment, the second pressing structure 50 includes two second pressing knives, and the two second pressing knives are respectively located at the upper and lower sides of the second lamination surface 32. The arrangement mode of the two second pressing knives is the same as that of the two first pressing knives, so the description is omitted.

Further, the stacking device in this embodiment further includes a detection structure, and the detection structure is adapted to detect the stacking position of the materials on the first stacking surface 31 and the second stacking surface 32. Further, the detection structure is used for detecting the alignment degree of the materials after lamination.

As shown in fig. 1 and 2, the detection structure includes a first CCD detection assembly 60 and a second CCD detection assembly 70, the first CCD detection assembly 60 is disposed opposite to the first lamination surface 31, and the second CCD detection assembly 70 is disposed opposite to the second lamination surface 32. The number of the first CCD detecting assemblies 60 is two, and one of the first CCD detecting assemblies 60 is located above the first laminating surface 31 and is used for detecting the alignment degree of the rear upper side of the material lamination on the first laminating surface 31. The other first CCD detecting assembly 60 is located below the first lamination surface 31 and is used for detecting the alignment degree of the rear upper side of the material lamination on the first lamination surface 31. Correspondingly, there are two second CCD detecting assemblies 70, and one of the second CCD detecting assemblies 70 is located above the second laminating surface 32 and is used for detecting the alignment degree of the rear upper side of the material lamination on the second laminating surface 32. Another second CCD detection assembly 70 is located below the second lamination surface 32 for detecting the alignment of the rear and lower sides of the material laminations on the second lamination surface 32.

Preferably, the lamination device in this embodiment further includes a controller, the controller is connected to the detection structure and the driving mechanism, and the controller is adapted to control the moving distance of the lamination table 30 driven by the driving mechanism according to the detection result of the detection structure. Specifically, if the first CCD detecting element 60 and the second CCD detecting element 70 detect that the data of the lamination does not meet the requirement, the controller controls the output displacement of the driving mechanism according to the detected data, and further adjusts the swing angle θ in the upper end of the lamination stage 30 until the alignment data of the lamination meets the requirement.

The detection data of the first CCD detection assembly 60 and the second CCD detection assembly 70 and the output displacement data of the driving mechanism realize closed-loop control through the controller.

Preferably, the first feeding structure 10 and the second feeding structure 20 are both feeding rollers.

The embodiment also provides a battery production line which comprises the laminating device.

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

1. the double material belts are stacked, so that the production efficiency is improved;

2. the lamination alignment degree is ensured by pressing the composite unit pieces through a pressing knife;

3. and the closed-loop detection of the alignment degree of the lamination position is achieved through the CCD closed-loop detection.

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 lamination assembly, comprising:

the first feeding structure (10) and the second feeding structure (20) are oppositely arranged;

a lamination station (30) arranged between the first feeding structure (10) and the second feeding structure (20), the lamination station (30) comprising a first lamination surface (31) facing the first feeding structure (10) and a second lamination surface (32) facing the second feeding structure (20);

a first pressing structure (40) and a second pressing structure (50), wherein the first pressing structure (40) is movably arranged on the first lamination surface (31), and the second pressing structure (50) is movably arranged on the second lamination surface (32);

the driving mechanism is connected with the lamination table (30) and is suitable for driving the lamination table (30) to move between the first feeding structure (10) and the second feeding structure (20) in a reciprocating mode.

2. The laminating device according to claim 1, wherein the lower end of the laminating table (30) is a fixed end, the upper end of the laminating table (30) is swingably provided, and the driving mechanism drives the upper end of the laminating table (30) to swing.

3. The lamination device according to claim 1, wherein the drive mechanism is a motor drivingly connected to a lower end of the lamination station (30).

4. A lamination device according to any one of claims 1 to 3, wherein the material is formed from a composite of pole pieces and a diaphragm, the pole pieces being spaced apart on the diaphragm.

5. A lamination device according to any one of claims 1 to 3, wherein the first pressing structure (40) comprises two first pressing knives located respectively on the upper and lower sides of the first lamination surface (31); and/or the second pressing structure (50) comprises two second pressing knives which are respectively positioned at the upper side and the lower side of the second lamination surface (32).

6. A lamination device according to any one of claims 1 to 3, characterized in that it further comprises a detection structure adapted to detect the stacking position of the materials on the first lamination face (31) and on the second lamination face (32).

7. The lamination device according to claim 6, wherein the detection structure comprises a first CCD detection assembly (60) and a second CCD detection assembly (70), the first CCD detection assembly (60) being arranged opposite to the first lamination surface (31) and the second CCD detection assembly (70) being arranged opposite to the second lamination surface (32).

8. The lamination device according to claim 6, further comprising a controller connected to the detection structure and the driving mechanism, wherein the controller is adapted to control a moving distance of the driving mechanism for driving the lamination table (30) according to a detection result of the detection structure.

9. A lamination device according to any one of claims 1 to 3, wherein the first and second feeding structures (10, 20) are both feeding rollers.

10. A battery production line, characterized by comprising a lamination device according to any one of claims 1 to 9.