Tab correction device

Abstract

A tab correction device includes a material placement seat, a first correction block, a second correction block and a drive assembly. The material placement seat is provided with a material placement groove. The first correction block is arranged on one side of the material placement seat. The second correction block is arranged on the other side of the material placement seat, and the second correction block is symmetrically arranged with the first correction block. The drive assembly is arranged adjacent to the material placement seat, and the drive assembly is respectively connected to the first correction block and the second correction block, and the drive assembly is used to drive the first correction block and the second correction block to move closer to or away from each other. A material placement seat is provided, and the first correction block and the second correction block are symmetrically arranged on both sides of the material placement seat. The drive assembly drives the first correction block and the second correction block to move, and the tabs at both ends of the battery cell are flattened to avoid bending. The first correction block and the second correction block are symmetrically arranged, and the winding core can be moved to the center position of the material placement seat, which is conducive to the subsequent precise positioning of the battery cell for material taking and precise positioning of the material discharge, avoiding deflection, reducing the defective rate, and improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of battery production equipment, and in particular to a tab correction device. Background Art

[0002] Lithium-ion batteries are usually composed of a positive electrode, a negative electrode, a separator, an electrolyte and an outer packaging. The positive electrode, the negative electrode and the separator are made into a battery cell through a winding process or a lamination process. The positive electrode and the negative electrode are respectively provided with a positive electrode ear and a negative electrode ear. The positive electrode ear and the negative electrode ear are metal conductors that lead the positive and negative electrodes out of the battery cell. They are the contact points during charging and discharging. The energy density of lithium-ion batteries is relatively high and they can be recycled. Lithium-ion batteries are a widely used type of battery.

[0003] However, cylindrical lithium-ion batteries are a common type of lithium-ion battery, and packaging mainly adopts manual, semi-automatic, and fully automatic production processes. Since the incoming pole ears of the core material have a certain angle, the positive and negative pole ears are often scrapped due to slanted sealing during the production process. Among them, in the packaging process of the manual line or semi-automatic line, in order to avoid the pole ears being scrapped due to slanted sealing, it is necessary to manually wrap the core in aluminum plastic film and smooth the pole ears, which increases the labor operation cost, has limited effect and poor appearance consistency. In the packaging process of the fully automatic line, the core is directly transported, filmed, and packaged by the clamp. The angle of the pole ears before the core is filmed is random, which increases the probability of slanted sealing. In addition, it is difficult to position and package the core, and the positioning accuracy is low, which makes packaging difficult. The pole ears are easily slanted and crushed during the production process, which easily leads to an increase in the defective rate, resulting in low production efficiency and high production costs, which is not conducive to industrial production. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a tab correction device so that during the production process of lithium-ion batteries, the tabs at both ends of the battery cell can be corrected in time and the battery cell can be accurately positioned, thereby reducing scrap and lowering the defective rate, which is beneficial to saving production costs and improving production efficiency.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A tab correction device, comprising:

[0007] A material placing seat, wherein the material placing seat is provided with a material placing groove;

[0008] A first correction block, wherein the first correction block is arranged at one side of the material placement seat;

[0009] A second correction block, the second correction block is arranged on the other side of the material placement seat, and the second correction block and the first correction block are symmetrically arranged relative to the material placement seat; and

[0010] A driving assembly is arranged adjacent to the material placement seat, and the driving assembly is connected to the first correction block and the second correction block respectively, and the driving assembly is used to drive the first correction block and the second correction block to move closer to or away from each other.

[0011] In one embodiment, the driving assembly includes a clamp cylinder, a first support plate, a second support plate, a first mounting block and a second mounting block. The clamp cylinder is arranged adjacent to the material placement seat, and the clamp cylinder is connected to the first support plate and the second support plate respectively. The first mounting block is arranged on the first support plate, and the first mounting block is slidably connected to the first correction block. The second mounting block is arranged on the second support plate, and the second mounting block is slidably connected to the second correction block.

[0012] In one embodiment, the tab correction device also includes a first sliding component, which includes a first slide plate and a first bolt. The first slide plate is arranged on the side wall of the first mounting block. The first slide plate is provided with a first slide groove. The first bolt is slidably arranged in the first slide groove. The first bolt is threadedly connected to the first correction block.

[0013] In one embodiment, the tab correction device also includes a second sliding assembly, the second sliding assembly includes a second slide plate and a second bolt, the second slide plate is arranged on the side wall of the second mounting block, the second slide plate is provided with a second slide groove, the second bolt is slidably arranged in the second slide groove, and the second bolt is threadedly connected to the second correction block.

[0014] In one embodiment, the first correction block is semi-cylindrical.

[0015] In one embodiment, the second correction block is semi-cylindrical.

[0016] In one embodiment, two first slide plates are provided, and the two first slide plates are respectively provided on two side walls of the first mounting block.

[0017] In one embodiment, two second slide plates are provided, and the two second slide plates are respectively provided on two side walls of the second mounting block.

[0018] In one embodiment, a first anti-stick coating is disposed on the surface of the first correction block.

[0019] In one embodiment, a second anti-stick coating is disposed on the surface of the second correction block.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] The present invention provides a material placement seat, and the material placement seat is provided with a material placement groove, which can be used to place the battery cell. The first correction block and the second correction block are respectively arranged on both sides of the material placement seat, and the first correction block and the second correction block are symmetrically arranged with respect to the central axis of the material placement seat. The driving component drives the first correction block and the second correction block to move, and the battery cell is placed on the material placement groove. The pole ears at both ends of the battery cell are respectively in contact with the first correction block and the second correction block located on both sides of the material placement seat. The first correction block and the second correction block are driven by the driving component to approach each other. During the movement, the first correction block and the second correction block can respectively move on the pole ears at both ends of the battery cell, and can play a role in smoothing the pole ears. Since the first correction block and the second correction block are The horizontal height of the correction block remains unchanged and consistent, so that the negative electrode ear facing the first correction block and the second correction block can be kept at the same level to avoid bending. At the same time, as the first correction block and the second correction block approach each other, the first correction block and the second correction block are respectively abutted against the two ends of the battery cell. Since the first correction block and the second correction block are symmetrically arranged on both sides of the material placement seat, the winding core can be moved to the center position of the material placement seat to achieve the positioning and placement of the battery cell, which is beneficial to the subsequent precise positioning of the battery cell for material removal and precise positioning of the material placement, which is beneficial to the subsequent processing, avoids deflection, reduces the defective rate, and is beneficial to saving production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic structural diagram of a tab correction device according to one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic structural diagram of the tab correction device from another perspective shown;

[0025] Figure 3 It is a schematic structural diagram of a material placing base of a tab correction device according to one embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] It should be noted that the expressions used herein regarding an element being “connected” to another element also mean that an element is “communicated” to another element, and fluids can be exchanged and communicated between the two elements.

[0030] See also Figure 1 and Figure 3 The tab correction device 10 comprises a material placing seat 100, a first correction block 200, a second correction block 300 and a driving assembly 400. The material placing seat 100 is provided with a material placing groove 101. The first correction block 200 is arranged on one side of the material placing seat 100. The second correction block 300 is arranged on the other side of the material placing seat 100, and the second correction block 300 and the first correction block 200 are symmetrically arranged relative to the material placing seat 100. The driving assembly 400 is arranged adjacent to the material placing seat 100, and the driving assembly 400 is respectively connected to the first correction block 200 and the second correction block 300, and the driving assembly 400 is used to drive the first correction block 200 and the second correction block 300 to move closer to or away from each other.

[0031] It should be noted that the material placement seat 100 is fixedly installed at the station before the battery cell 90 is coated with the aluminum-plastic film. The material placement seat 100 is provided with a material placement groove 101, which can be used to place the battery cell 90. The first correction block 200 and the second correction block 300 are respectively arranged on both sides of the material placement seat 100, and the first correction block 200 and the second correction block 300 are symmetrically arranged with respect to the central axis of the material placement seat 100. That is to say, the distance between the first correction block 200 and the material placement seat 100 is the same as the distance between the second correction block 300 and the material placement seat 100. The driving component 400 drives the first correction block 200 and the second correction block 300 to move, so that the first correction block 200 and the second correction block 300 are symmetrically arranged with respect to the central axis of the material placement seat 100. The two correction blocks 300 are close to or away from each other. By placing the battery cell 90 on the material placement trough 101, the pole ears at both ends of the battery cell 90 are respectively in contact with the first correction block 200 and the second correction block 300 located on both sides of the material placement seat 100. The first correction block 200 and the second correction block 300 are driven to approach each other through the driving component 400. During the movement, the first correction block 200 and the second correction block 300 can move on the pole ears at both ends of the battery cell 90 respectively, and can play a role in smoothing the pole ears at the same time. Since the horizontal heights of the first correction block 200 and the second correction block 300 remain unchanged and consistent, the pole ears can be moved toward the first correction block 200. The first and second correction blocks 200 and 300 are kept at the same level to avoid bending. At the same time, as the first and second correction blocks 200 and 300 approach each other, the first and second correction blocks 200 and 300 are respectively in contact with the two ends of the battery cell 90, and the driving component 400 stops driving. Since the first and second correction blocks 200 and 300 are symmetrically arranged on both sides of the material placement seat 100, the winding core can be moved to the center position of the material placement seat 100 to achieve the positioning and placement of the battery cell 90. Then the driving component 400 drives the reverse movement, that is, moves in the direction away from each other, and the two ends of the battery cell 90 are respectively adjusted again. The ears are smoothed to further ensure that the ears at both ends of the battery cell 90 remain horizontal toward the first correction block 200 and the second correction block 300, thereby completing the correction of the ears at both ends of the core and positioning the core. The battery cell 90 can be subsequently positioned and adsorbed by a suction nozzle and transported to a subsequent workstation. In other words, it is beneficial to the subsequent precise positioning of the battery cell 90 for material collection and precise positioning of material discharge, thereby facilitating the subsequent processing of the aluminum-plastic film coated core to avoid deflection. At the same time, the contact surface between the ear and the aluminum-plastic film can be kept horizontal to avoid bending, thereby reducing the defective rate, which is beneficial to saving production costs and improving production efficiency.

[0032] Specifically, please refer to 1, the driving assembly 400 includes a clamp cylinder 410, a first support plate 420, a second support plate 430, a first mounting block 440 and a second mounting block 450, the clamp cylinder 410 is arranged adjacent to the material placement seat 100, the clamp cylinder 410 is connected to the first support plate 420 and the second support plate 430 respectively, the first mounting block 440 is arranged on the first support plate 420, the first mounting block 440 is slidably connected to the first correction block 200, the second mounting block 450 is arranged on the second support plate 430, and the second mounting block 450 is slidably connected to the second correction block 300. It can be understood that by installing the clamp cylinder 410 below the material placing trough 101 and adjacent to the material placing seat 100, the first support plate 420 and the second support plate 430 are respectively fixedly installed on the two clamping jaws of the clamp cylinder 410, so that the clamping jaws of the clamp cylinder 410 can drive the first support plate 420 and the second support plate 430 to approach or move away from each other when performing reciprocating motion, thereby driving the first mounting block 440 and the second mounting block 450 respectively arranged on the first support plate 420 and the second support plate 430 to approach or move away from each other, thereby driving the first correction block 200 and the second correction block 300 to approach or move away from each other, so as to realize that the first correction block 200 and the second correction block 300 are respectively moved on the pole ears at both ends of the battery cell 90, and the pole ears at both ends of the battery cell 90 are smoothed. The structure is simple and easy to operate.

[0033] Specifically, see Figure 1 and Figure 2The ear correction device also includes a first sliding component 500, which includes a first slide plate 510 and a first bolt 520. The first slide plate 510 is arranged on the side wall of the first mounting block 440. The first slide plate 510 is provided with a first slide groove 511. The first bolt 520 is slidably arranged in the first slide groove 511. The first bolt 520 is threadedly connected to the first correction block 200. It can be understood that by fixing the first slide plate 510 on the side wall of the first mounting block 440, the first slide plate 510 is arranged parallel to the side wall of the first sliding block, the first slide plate 510 opens a first slide groove 511, the first bolt 520 passes through the first slide groove 511, and is slidably arranged in the first slide groove 511, and a threaded hole compatible with the first bolt 520 is opened through the first correction block 200, and the first bolt 520 passes through the first slide groove 511 and is threadedly connected to the first correction block 200 through the threaded hole, according to the ear conditions of different batches of battery cells 90, the first screw rod is slid to a suitable position to drive the first correction block 200 to move to a suitable position, and then the first bolt 520 is tightened to make the first bolt 520 abut against the first slide plate 510, and the first bolt 520 is fixed, thereby fixing the position of the first correction block 200, and the height of the first correction block 200 can be adjusted according to the height conditions of the ear conditions of different batches of battery cells 90, thereby improving the applicability of the ear correction device 10 and making it more practical.

[0034] Specifically, see Figure 1 and Figure 2The ear correction device also includes a second sliding assembly 600, which includes a second slide plate 610 and a second bolt 620. The second slide plate 610 is arranged on the side wall of the second mounting block 450. The second slide plate 610 is provided with a second slide groove 611. The second bolt 620 is slidably arranged in the second slide groove 611. The second bolt 620 is threadedly connected to the second correction block 300. It can be understood that by fixing the second slide plate 610 on the side wall of the second mounting block 450, the second slide plate 610 is arranged parallel to the side wall of the second sliding block, the second slide plate 610 opens a second slide groove 611, the second bolt 620 passes through the second slide groove 611, and is slidably arranged in the second slide groove 611, and a threaded hole compatible with the second bolt 620 is opened through the second correction block 300, and the second bolt 620 passes through the second slide groove 611 and is threadedly connected to the second correction block 300 through the threaded hole, according to the ear conditions of different batches of battery cells 90, the second screw rod is slid to a suitable position to drive the second correction block 300 to move to a suitable position, and then the second bolt 620 is tightened to make the second bolt 620 abut against the second slide plate 610, and the second bolt 620 is fixed, thereby fixing the position of the second correction block 300, and the height of the second correction block 300 can be adjusted according to the height conditions of the ear conditions of different batches of battery cells 90, thereby improving the applicability of the ear correction device 10 and making it more practical.

[0035] More specifically, see Figure 1 , the first correction block 200 is semi-cylindrical. The second correction block 300 is semi-cylindrical. It can be understood that the first correction block 200 and the second correction block 300 are both set to semi-cylindrical, so that the top of the first correction block 200 and the second correction block 300 is smoother, which is conducive to reducing the contact area between the first correction block 200 and the second correction block 300 and the pole ear, and can reduce the friction with the pole ear to avoid damage to the pole ear. At the same time, the first correction block 200 and the second correction block 300 are both semi-cylindrical. When the top contacts the pole ear, the semi-circular structure contacts the pole ear similarly to the line and surface contact, which is convenient for holding up the pole ear and smoothing the pole ear, and the correction effect is better.

[0036] For further information, see Figure 2, two first slide plates 510 are provided, and the two first slide plates 510 are respectively provided on the two side walls of the first mounting block 440. It can be understood that two first slide plates 510 are provided, and the two first slide plates 510 are relatively provided on the two side walls of the first mounting block 440. The first slide plates 510 are provided in two, so that the first correction block 200 can be limited. The first correction block 200 is located between the two first slide plates 510, which is conducive to the first correction block 200 to move more smoothly and is more convenient to adjust the height of the first correction block 200. At the same time, the two first slide plates 510 can be provided with first sliding grooves 511, and two first bolts 520 can be provided to be respectively threadedly connected with the first correction block 200, so as to better lock and fix, and facilitate operation.

[0037] For further information, see Figure 2 , two second slide plates 610 are provided, and the two second slide plates 610 are respectively provided on the two side walls of the second mounting block 450. It can be understood that two second slide plates 610 are provided, and the two second slide plates 610 are relatively provided on the two side walls of the second mounting block 450, and the second slide plates 610 are provided in two. Similarly, the second correction block 300 can be limited, and the second correction block 300 is located between the two second slide plates 610, which is conducive to the second correction block 300 to move more smoothly and is more convenient to adjust the height of the second correction block 300. At the same time, the two second slide plates 610 can be provided with a second slide groove, and two second bolts 620 can be provided to be respectively threadedly connected with the second correction block 300, so as to better lock and fix, and facilitate operation.

[0038] Furthermore, a first anti-stick coating is provided on the surface of the first correction block 200. A second anti-stick coating is provided on the surface of the second correction block 300. The first correction block 200 and the second correction block 300 are respectively provided with the first anti-stick coating and the second anti-stick coating, which can play an anti-stick role, are easy to clean, and have improved chemical resistance and durability. For example, the first anti-stick coating and the second anti-stick coating are both Teflon anti-stick coatings.

[0039] Compared with the prior art, the present invention has at least the following advantages:

[0040] The present invention provides a material placement seat, and the material placement seat is provided with a material placement groove, which can be used to place battery cells. The first correction block and the second correction block are respectively arranged on both sides of the material placement seat, and the first correction block and the second correction block are symmetrically arranged with respect to the central axis of the material placement seat. The driving component drives the first correction block and the second correction block to move, and the battery cell is placed on the material placement groove. The pole ears at both ends of the battery cell are respectively in contact with the first correction block and the second correction block located on both sides of the material placement seat. The first correction block and the second correction block are driven by the driving component to approach each other. During the movement, the first correction block and the second correction block can respectively move on the pole ears at both ends of the battery cell, and can play a role in smoothing the pole ears. The horizontal heights of the two correction blocks remain unchanged and consistent, so that the side of the pole ear facing the first correction block and the second correction block can be kept at the same level to avoid bending. At the same time, as the first correction block and the second correction block approach each other, the first correction block and the second correction block respectively abut the two ends of the battery cell. Since the first correction block and the second correction block are symmetrically arranged on both sides of the material placement seat, the winding core can be moved to the center position of the material placement seat to achieve the positioning and placement of the battery cell, which is beneficial to the subsequent precise positioning of the battery cell for material taking and precise positioning of the material placement, which is beneficial to the subsequent processing, avoids deflection, reduces the defective rate, and is beneficial to saving production costs and improving production efficiency.

[0041] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A tab correction device, characterized in that: include: A material placing seat, wherein the material placing seat is provided with a material placing groove; A first correction block, wherein the first correction block is arranged at one side of the material placement seat; A second correction block, the second correction block is arranged on the other side of the material placement seat, and the second correction block and the first correction block are symmetrically arranged relative to the material placement seat; and A driving assembly, wherein the driving assembly is disposed adjacent to the material placement seat, the driving assembly is connected to the first correction block and the second correction block respectively, and the driving assembly is used to drive the first correction block and the second correction block to move closer to or away from each other; The driving assembly includes a clamp cylinder, a first support plate, a second support plate, a first mounting block and a second mounting block, the clamp cylinder is arranged adjacent to the material placing seat, the clamp cylinder is connected to the first support plate and the second support plate respectively, the first mounting block is arranged on the first support plate, the first mounting block is slidably connected to the first correction block, the second mounting block is arranged on the second support plate, and the second mounting block is slidably connected to the second correction block; The tab correction device further includes a first sliding assembly, the first sliding assembly includes a first slide plate and a first bolt, the first slide plate is arranged on the side wall of the first mounting block, the first slide plate is provided with a first slide groove, the first bolt is slidably arranged in the first slide groove, and the first bolt is threadedly connected to the first correction block; The tab correction device also includes a second sliding assembly, which includes a second slide plate and a second bolt. The second slide plate is arranged on the side wall of the second mounting block. The second slide plate is provided with a second slide groove. The second bolt is slidably arranged in the second slide groove. The second bolt is threadedly connected to the second correction block.

2. The tab correction device according to claim 1, characterized in that: The first correction block is semi-cylindrical.

3. The tab correction device according to claim 1, characterized in that: The second correction block is semi-cylindrical.

4. The tab correction device according to claim 1, characterized in that: Two first slide plates are provided, and the two first slide plates are respectively provided on two side walls of the first mounting block.

5. The tab correction device according to claim 1, characterized in that: Two second slide plates are provided, and the two second slide plates are respectively provided on two side walls of the second mounting block.

6. The tab correction device according to claim 1, characterized in that: The surface of the first correction block is provided with a first anti-stick coating.

7. The tab correction device according to claim 1, characterized in that: The surface of the second correction block is provided with a second anti-stick coating.

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