Slitting equipment for battery pole piece

Abstract

The utility model provides slitting equipment for a battery pole piece. The slitting equipment comprises a main body frame and a plurality of slitting mechanisms arranged on the main body frame, the slitting mechanism comprises a slitting blade, a supporting rod provided with the slitting blade, a driving assembly driving the supporting rod to rotate and a deviation rectifying assembly connected with the driving assembly. When the position of the slitting blade deviates from a preset position, the deviation rectifying assembly can rectify deviation of the slitting blade by adjusting the position of the driving assembly. According to the equipment, the control mode of the slitting blade is adjusted through the deviation rectifying assembly, the slitting size of the battery pole piece can be more accurately controlled, and the rejection rate of battery products can be reduced; meanwhile, the multiple slitting mechanisms are arranged, the distance between every two adjacent slitting blades can be accurately controlled, the cutter distance of the slitting equipment is changed, and the slitting equipment is suitable for cutting battery pole pieces of different lengths.

Description

[Technical field]

[0001] The utility model relates to the technical field of battery production, in particular to a battery pole piece cutting device. [Background technology]

[0002] Cylindrical and square lithium-ion batteries have been developed to date. Due to the demand for high charge and discharge rates, low temperature rise, and low internal resistance in power types, the so-called full-ear batteries have come into being, and their research and development and mass production are in full swing.

[0003] However, the positive and negative electrodes of full-tab batteries are mostly made by continuously coating wide strips with multiple longitudinal blank edges (tabs). During continuous rolling, the coating material area extends unevenly and deforms randomly, which often causes wrinkles in the blank area and wave shape of the electrode, and finally leads to deviations in the coating width and blank size. Traditional slitting machines use a single-axis multi-knife assembled fixed tool holder for continuous slitting regardless of the number of pieces and strips. Due to the deviation and accumulated error of the above-mentioned electrode pieces, the dimensional control accuracy of the entire piece of multiple electrode pieces during the slitting process is extremely reduced, and the scrap rate is extremely high. In addition, when producing electrode pieces of different widths, it is necessary to change the knife spacing of the slitting machine through complicated disassembly and debugging to produce electrode pieces of different widths, which is time-consuming and labor-intensive.

[0004] In view of this, the utility model provides a battery electrode cutting device to solve the above problems. [Contents of the utility model]

[0005] The purpose of the utility model is to provide a battery pole piece slitting device, aiming to improve the control accuracy of slitting size and reduce the scrap rate of products during the slitting of battery pole pieces.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a battery electrode slitting device, including a main frame and a plurality of slitting mechanisms arranged on the main frame; the slitting mechanism includes a slitting blade for cutting the battery electrode, a support rod on which the slitting blade is installed, a driving component that drives the support rod to rotate so that the slitting blade cuts the battery electrode, and a correction component connected to the driving component; when the position of the slitting blade deviates from the preset position, the correction component can correct the slitting blade by adjusting the position of the driving component.

[0007] On the basis of the above scheme, the support rod includes a first driving rod and a second driving rod respectively located on both sides of the battery electrode, and the first driving rod and the second driving rod are both equipped with the cutting blades, and the positions are correspondingly arranged; when the battery electrode passes between the first driving rod and the second driving rod, the driving assembly can simultaneously drive the cutting blades on the first driving rod and the second driving rod to rotate to cut the battery electrode.

[0008] On the basis of the above solution, a plurality of the cutting mechanisms are arranged in sequence and at intervals along the length direction of the battery electrode sheet.

[0009] Based on the above solution, the slitting blades on the plurality of slitting mechanisms are spaced apart in the width direction of the battery electrode sheet.

[0010] Based on the above scheme, the driving assembly includes a driving member, a reducer, and a mounting seat. The driving member is installed on the mounting seat and connected to the reducer. The reducer is connected to the support rod. The driving member can drive the support rod to drive the slitting blade on the support rod to rotate and cut the battery electrode.

[0011] Based on the above solution, the position of the slitting blade on the support rod is set to be adjustable.

[0012] On the basis of the above scheme, it also includes an image sensor and a controller installed on the main frame, the image sensor is used to detect the actual cutting width of each strip product formed by the cutting mechanism cutting the battery electrode and can transmit the cutting width to the controller, and the controller controls the correction component to adjust the cutting position of the cutting blade on the battery electrode according to the cutting width.

[0013] Based on the above scheme, the correction component includes an adjusting member, a sliding rod and a sliding seat arranged on the sliding rod, and the driving component is installed on the sliding seat; when the slitting blade needs to be corrected, the adjusting member drives the sliding seat to move to adjust the position of the driving component.

[0014] Compared with the prior art, the utility model provides a battery electrode sheet slitting device, comprising a main frame and a plurality of slitting mechanisms arranged on the main frame; the slitting mechanism comprises a slitting blade, a support rod on which the slitting blade is mounted, a driving assembly for driving the supporting rod to rotate, and a correction assembly connected to the driving assembly; when the position of the slitting blade deviates from the preset position, the correction assembly can adjust the position of the driving assembly to achieve correction of the slitting blade; the device adjusts the control mode of a slitting blade by a correction assembly, has a more precise control capability over the slitting size of the battery electrode sheet, and can reduce the scrap rate of the battery products; at the same time, a plurality of slitting mechanisms are arranged, which can precisely control the distance between adjacent slitting blades, change the blade spacing of the slitting device, and adapt to the cutting of battery electrode sheets of different lengths.

Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the top view of the battery electrode cutting device provided by the utility model;

[0017] Figure 2 This is a schematic diagram of a slitting mechanism in one embodiment of the utility model;

[0018] As shown in the figure: slitting equipment 100, battery pole piece 10, main frame 1, slitting mechanism 2;

[0019] Slitting blade 21, support rod 22, first driving rod 221, second driving rod 222, driving assembly 23, driving member 231, speed reducer 232, mounting seat 233; deviation correction assembly 24, adjusting member 241, sliding rod 242, sliding seat 243; image sensor 25; [Specific implementation method]

[0020] In order to make the purpose, technical solution and beneficial technical effect of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the utility model.

[0021] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0022] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0023] like Figure 1-2As shown, the utility model provides a battery electrode sheet slitting device 100, including a main frame 1 and a plurality of slitting mechanisms 2 arranged on the main frame 1, wherein the slitting mechanism 2 includes a slitting blade 21 for cutting the battery electrode sheet 10, a support rod 22 for mounting the slitting blade 21, a driving assembly 23 for driving the support rod 22 to rotate so that the slitting blade 21 cuts the battery electrode sheet 10, and a correction assembly 24 connected to the driving assembly 23; when the device cuts the battery electrode sheet 10, the slitting blade 21 is located on one side of the battery electrode sheet 10, and the driving assembly 23 and the correction assembly 24 drive and control the slitting blade 21 to rotate in the battery electrode sheet 10. The battery electrode 10 is cut at a preset position of the electrode 10 to cut the battery electrode 10 into a plurality of expected strip products; however, when the position of the slitting blade 21 cutting the battery electrode 10 deviates from the preset position, the correction component 24 can correct the slitting blade 21 by adjusting the position of the driving component 23; it can be understood that: the driving component 23, the support rod 22 and the slitting blade 21 are a whole, and when the correction component 24 moves the driving component 23, the slitting blade 21 also moves with the movement of the driving component 23, that is, the correction component 24 can correct the slitting blade 21 by adjusting the position of the driving component 23.

[0024] Specifically, multiple slitting mechanisms 2 are equidistantly spaced on the main frame 1, and are distributed in sequence along the length direction of the battery electrode 10; it should be noted that the position of the slitting mechanism 2 on the main frame 1 is adjustable, and the slitting mechanism 2 can be operated or removed alone; that is, the number of slitting mechanisms 2 needs to be customized according to actual needs, so as to adapt to the slitting operations of battery electrodes 10 of different widths, so as to facilitate the full use of the equipment.

[0025] Combined with Figure 1 , multiple slitting mechanisms 2 are arranged in sequence and at intervals along the length direction of the battery electrode 10; it can be known that the support rods 22 on the multiple slitting mechanisms 2 are arranged horizontally and perpendicular to the length direction of the battery electrode 10; since the multiple slitting mechanisms 2 are equidistantly distributed, and the slitting blades are installed on the support rods 22, it can be known that along the width direction of the battery electrode 10, the slitting blades 21 on the multiple slitting mechanisms 2 are distributed in sequence and at intervals; that is, by adjusting the positions of the slitting blades on adjacent slitting mechanisms 2, the blade spacing of the slitting equipment 100 can be determined, and the battery electrode 10 can be divided into multiple strip products that meet the expectations.

[0026] Specifically, the driving assembly 23 includes a driving member 231, a reducer 232, and a mounting seat 233. The mounting seat 233 is fixed on the main frame 1. The driving member 231 is installed on the mounting seat 233 and connected to the reducer 232. The reducer 232 is connected to the support rod 22. The driving member 231 can drive the support rod 22 to rotate and drive the slitting blade 21 located on the support rod 22 to rotate to cut the battery electrode 10.

[0027] Specifically, the position of the slitting blade 21 on the support rod 22 is adjustable, and this arrangement can facilitate the maintenance of the slitting device 100.

[0028] like Figure 2 As shown, in another embodiment, the support rod 22 may further include a first driving rod 221 and a second driving rod 222 respectively located on both sides of the battery electrode 10, and the first driving rod 221 and the second driving rod 222 are both equipped with a slitting blade 21, and the positions are correspondingly arranged; when the battery electrode 10 passes between the first driving rod 22 and the second driving rod, the driving component 23 can simultaneously drive the slitting blades 21 on the first driving rod 221 and the second driving rod 222 to cut the battery electrode 10; specifically, the driving member 231 and the first driving rod 221 or the second driving rod 222 are connected to each other. 222 is connected, and the first driving rod 221 and the second driving rod 222 are both provided with transmission gears and meshed, that is, the driving member 231 can simultaneously rotate the first driving member and the second driving member, drive the slitting blades 21 on both sides of the battery electrode 10 to rotate, and cut the battery electrode 10; of course, the transmission gear transmission is arranged on the first driving rod 221 and the second driving rod 222, which is only a way of transmitting the first driving member and the second driving member, and is not a way limited by the present application, that is, in the present device, there is no restriction on the transmission method of the first driving rod 221 and the second driving rod 222.

[0029] In this embodiment, an image sensor 25 and a controller (not marked) are also provided on the main frame 1. The image sensor 25 is used to detect the actual slitting width of each strip product formed by the slitting mechanism 2 slitting the battery electrode 10 and can transmit the slitting width to the controller. The controller controls the correction component 24 to adjust the cutting position of the slitting blade 21 on the battery electrode 10 according to the slitting width, thereby realizing real-time monitoring of the slitting blade position.

[0030] Specifically, the deviation correction component 24 includes an adjusting member 241 and a sliding rod 242, a sliding seat 243 is provided on the sliding rod 242, and the driving component 23 is installed on the sliding seat 243; when the slitting blade 21 needs to be corrected, the adjusting member 241 drives the sliding seat 243 to move to adjust the position of the driving component 23, thereby adjusting the position of the slitting blade cutting the battery electrode; of course, the above-mentioned deviation correction component adjusts the position of the driving component by the sliding rod 242, which is only one way, and it can also be adjusted by threaded transmission, that is, in this device, there is no restriction on the way the deviation correction component adjusts the position of the driving component.

[0031] In summary, the utility model provides a battery electrode slitting device, including multiple slitting mechanisms 2; the slitting mechanism 2 includes a slitting blade 21, a support rod 22, a driving assembly 23 and a correction assembly 24; when the position of the slitting blade 21 deviates from the preset position, the correction assembly 24 can adjust the position of the driving assembly 23 to achieve the correction of the slitting blade 21; by implementing a one-knife-one-correction control mode, the device has a more precise control capability over the slitting size of the battery electrode 10, thereby reducing the scrap rate of the battery product; at the same time, by setting up multiple slitting mechanisms 2, the distance between adjacent slitting blades 21 can be precisely controlled, and the blade spacing of the slitting device can be changed to adapt to the cutting of battery electrodes 10 of different lengths.

[0032] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A battery electrode cutting device, characterized in that: It comprises a main frame and a plurality of slitting mechanisms arranged on the main frame; the slitting mechanisms comprise a slitting blade for cutting battery pole pieces, a support rod on which the slitting blade is mounted, a driving assembly for driving the support rod to rotate so that the slitting blade cuts the battery pole pieces, and a deviation correction assembly connected to the driving assembly; When the position of the slitting blade deviates from the preset position, the deviation correction component can correct the deviation of the slitting blade by adjusting the position of the driving component.

2. The battery electrode cutting device according to claim 1, characterized in that: The support rod includes a first driving rod and a second driving rod respectively located on both sides of the battery electrode, and the first driving rod and the second driving rod are both equipped with the slitting blades, and the positions are correspondingly arranged; when the battery electrode passes between the first driving rod and the second driving rod, the driving assembly can simultaneously drive the slitting blades on the first driving rod and the second driving rod to rotate to cut the battery electrode.

3. The battery electrode cutting device according to claim 1, characterized in that: The plurality of cutting mechanisms are arranged in sequence and at intervals along the length direction of the battery electrode sheet.

4. The battery electrode cutting device according to claim 1, characterized in that: The slitting blades on the plurality of slitting mechanisms are spaced apart in the width direction of the battery electrode sheet.

5. The battery electrode cutting device according to claim 1, characterized in that: The driving assembly includes a driving member, a reducer, and a mounting seat. The driving member is installed on the mounting seat and connected to the reducer. The reducer is connected to the support rod. The driving member can drive the support rod to drive the slitting blade on the support rod to rotate and cut the battery electrode.

6. The battery electrode cutting device according to claim 1, characterized in that: The position of the slitting blade on the support rod is adjustable.

7. The battery electrode cutting device according to claim 1, characterized in that: It also includes an image sensor and a controller installed on the main frame, the image sensor is used to detect the actual cutting width of each strip product formed by the cutting mechanism cutting the battery electrode and can transmit the cutting width to the controller, and the controller controls the correction component to adjust the cutting position of the cutting blade on the battery electrode according to the cutting width.

8. The battery electrode cutting device according to claim 1, characterized in that: The deviation correction assembly includes an adjustment member, a sliding rod, and a sliding seat arranged on the sliding rod, and the driving assembly is installed on the sliding seat; When the slitting blade needs to be corrected, the adjusting member drives the sliding seat to move so as to adjust the position of the driving assembly.

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