Electrode slitting device

Abstract

This application relates to an electrode slitting device. The electrode slitting device includes: a substrate, a cutter head assembly, an anti-winding disc, and a drive assembly; the cutter head assembly includes a disc body, a rotating shaft, and a cutter; the disc body is disposed at one end of the rotating shaft, the cutter is disposed on the outer peripheral surface of the disc body, the rotating shaft is rotatably connected to the substrate, and the drive assembly is connected to the rotating shaft and used to drive the rotating shaft to rotate relative to the substrate; the anti-winding disc is disposed on the side of the disc body facing the rotating shaft, the anti-winding disc is sleeved on the rotating shaft, and the side of the anti-winding disc facing away from the disc body is connected to the substrate. The solution provided by this application can prevent the slitting edge material from being wound into the slitting cutter head.

Description

Technical Field

[0001] This application relates to the field of lithium battery production equipment technology, and in particular to an electrode slitting device. Background Technology

[0002] In the manufacturing process of lithium batteries, the electrode sheet, as a core component, needs to be processed and shaped through multiple processes such as coating, rolling, and slitting. Among them, the slitting process involves cutting a wide electrode sheet longitudinally into several narrow electrode sheets to meet the different requirements of electrode sheet width for different battery models. The slitting accuracy directly affects the edge quality of the electrode sheet and the yield of subsequent winding / stacking processes, and is a key factor determining the electrochemical performance and safety of the battery.

[0003] In related technologies, a rotary slitting disc is typically used to perform electrode slitting operations. The slitting disc has circular blades, and the shearing force generated by the high-speed rotation of the blades is used to achieve continuous cutting of the electrode.

[0004] However, in practical applications of the slitting discs in related technologies, the electrode edge material generated during the slitting process is easily rolled into the gap between the discs and becomes entangled with the rotating discs, thereby damaging the equipment. Utility Model Content

[0005] To solve or partially solve the problems existing in the related technologies, this application provides an electrode slitting device that can prevent the slitting edge material from being rolled into the slitting disc.

[0006] This application provides an electrode slitting device, including: a substrate, a cutter head assembly, an anti-winding disc, and a drive assembly;

[0007] The cutter head assembly includes a disc body, a rotating shaft, and a cutter. The disc body is disposed at one end of the rotating shaft, and the cutter is disposed on the outer peripheral surface of the disc body. The rotating shaft is rotatably connected to the base. The drive assembly is connected to the rotating shaft and is used to drive the rotating shaft to rotate relative to the base.

[0008] The anti-winding disc cover is located on the side of the disc body facing the rotating shaft, the anti-winding disc is sleeved on the rotating shaft, and the side of the anti-winding disc away from the disc body is connected to the base.

[0009] Furthermore, the disc body has a groove on the side facing the anti-winding disc, and the outer edge of the anti-winding disc has a protruding edge that extends into the groove.

[0010] Furthermore, the cutter head assembly also includes a pressure plate, which is located on the side of the disc body away from the rotating shaft. The outer periphery of the disc body is provided with a flange, and the pressure plate and the flange clamp the cutter.

[0011] Furthermore, the drive assembly includes a motor, a drive pulley, a driven pulley, and a belt. The motor is located on the base, the drive pulley is connected to the output shaft of the motor, the driven pulley is connected to the rotating shaft, and the belt is sleeved on the drive pulley and the driven pulley.

[0012] Furthermore, a pressure plate is provided at the end of the rotating shaft away from the disc body, and the pressure plate abuts against the driven wheel.

[0013] Furthermore, the aforementioned electrode slitting device also includes a bearing sleeved on the rotating shaft, and the rotating shaft is rotatably connected to the substrate through the bearing.

[0014] Furthermore, the bearing is a tapered needle roller bearing, and there are two bearings, which are disposed opposite to each other on the rotating shaft;

[0015] An adjusting nut is threaded onto the rotating shaft, and the inner ring of one of the bearings abuts against the disc body, while the inner ring of the other bearing abuts against the adjusting nut.

[0016] Furthermore, a bearing housing is provided between the bearing and the base, and the bearing housing is provided with a grease passage.

[0017] Furthermore, the anti-entanglement disc is fixedly connected to the bearing housing by bolts.

[0018] Furthermore, the substrate is provided with a cleaning component positioned opposite to the cutter, and the cleaning component is provided with a cleaning agent pipe and a dust suction pipe.

[0019] The technical solution provided in this application may include the following beneficial results: by setting an anti-winding disc on the side of the disc facing the rotating shaft, the anti-winding disc is sleeved on the rotating shaft, and the side of the anti-winding disc away from the disc is connected to the base, when the drive assembly drives the rotating shaft to rotate, the rotating shaft drives the disc and the cutter on the disc to rotate, and the cutter places the edge material generated by the electrode cutting on the side of the cutter facing the rotating shaft. The anti-winding disc can block the edge material, thereby preventing the edge material from being rolled into the gap between the rotating shaft and the base, and thus preventing the edge material from getting tangled with the rotating shaft and the disc, and preventing damage to the equipment.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0022] Figure 1This is a schematic diagram of the electrode slitting device shown in the embodiments of this application;

[0023] Figure 2 This is a cross-sectional view of the electrode slitting apparatus shown in an embodiment of this application.

[0024] Figure label:

[0025] 1-Base, 2-Cutter head assembly, 21-Disc body, 211-Groove, 212-Flange, 22-Shaft, 23-Cutter, 24-Pressure plate, 3-Anti-winding disc, 31-Raised edge, 4-Drive assembly, 41-Motor, 42-Drive wheel, 43-Driven wheel, 44-Belt, 5-Pressure plate, 6-Bearing, 7-Adjusting nut, 8-Bearing seat, 9-Cleaning component, 10-Cleaning agent pipe, 20-Dust suction pipe, 30-Oil nozzle, 40-Guard cover. Detailed Implementation

[0026] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0027] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In related technologies, there is a problem that electrode edge material generated during the slitting process can easily get caught in the gap between the cutter heads and become entangled with the rotating cutter heads, thereby causing damage to the equipment.

[0031] To address the aforementioned issues, this application provides an electrode slitting device that prevents the slitting edge material from being rolled into the slitting blade 23.

[0032] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the electrode slitting device shown in the embodiments of this application; Figure 2 This is a cross-sectional view of the electrode slitting apparatus shown in an embodiment of this application.

[0034] like Figure 1 and Figure 2 As shown in the figure, this application provides an electrode slitting device, including a substrate 1, a cutter head assembly 2, an anti-winding disc 3, and a drive assembly 4.

[0035] The cutter head assembly 2 includes a disc body 21, a rotating shaft 22, and a cutter 23. The disc body 21 is located at one end of the rotating shaft 22, and the disc body 21 and the rotating shaft 22 are integrally formed. The cutter 23 is located on the outer circumferential surface of the disc body 21. The cutter 23 is a ring structure and is sleeved on the outer circumferential surface of the disc body 21. The rotating shaft 22 is rotatably connected to the base 1. The drive assembly 4 is connected to the rotating shaft 22 and is used to drive the rotating shaft 22 to rotate relative to the base 1.

[0036] The anti-winding disc 3 is placed on the side of the disc body 21 facing the rotating shaft 22. The anti-winding disc 3 is sleeved on the rotating shaft 22. The side of the anti-winding disc 3 away from the disc body 21 is connected to the base body 1. The anti-winding disc 3 is fixedly connected to the base body 1.

[0037] Based on the above solution, an anti-winding disc 3 is provided on the side of the disc 21 facing the rotating shaft 22. The anti-winding disc 3 is sleeved on the rotating shaft 22, and the side of the anti-winding disc 3 away from the disc 21 is connected to the base 1. When the drive assembly 4 drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the disc 21 and the cutter 23 on the disc 21 to rotate. The cutter 23 places the edge material generated by cutting the electrode sheet on the side of the cutter 23 facing the rotating shaft 22. The anti-winding disc 3 can block the edge material, thereby preventing the edge material from being rolled into the gap between the rotating shaft 22 and the base 1, and thus preventing the edge material from getting tangled with the rotating shaft 22 and the disc 21, preventing damage to the equipment.

[0038] In some embodiments, such as Figure 2 As shown, the disc body 21 has a groove 211 on the side facing the anti-winding disc 3, and the outer edge of the anti-winding disc 3 has a protruding edge 31 that extends into the groove 211. By having the protruding edge 31 of the edge of the anti-winding disc 3 extend into the groove 211 of the disc body 21, an embedded structure is formed, which can prevent the risk of slit edge material from entering the anti-winding disc 3 through the gap between the disc body 21 and the anti-winding disc 3 and thus contacting the rotating shaft 22 and becoming entangled. The gap between the protruding edge 31 and the groove 211 can be set to 0.1-1mm, preferably 0.5mm.

[0039] In some embodiments, such as Figure 2 As shown, the cutter head assembly 2 also includes a pressure plate 24, which is located on the side of the disc body 21 away from the rotating shaft 22. The outer periphery of the disc body 21 is provided with a flange 212, and the pressure plate 24 and the flange 212 clamp the cutter 23. Specifically, the pressure plate 24 can be detachably connected to the disc body 21 by bolts. When installing the cutter 23, the cutter 23 can first be fitted onto the disc body 21 and abutted against the flange 212. Then, the pressure plate 24 is fitted onto the side of the disc body 21 away from the rotating shaft 22, and the pressure plate 24 presses the cutter 23 tightly. The pressure plate 24 and the flange 212 clamp and fix the cutter 23.

[0040] In some embodiments, such as Figure 1 and Figure 2 As shown, the drive assembly 4 includes a motor 41, a drive wheel 42, a driven wheel 43, and a belt 44. The motor 41 is located on the base 1, the drive wheel 42 is connected to the output shaft of the motor 41, the driven wheel 43 is connected to the rotating shaft 22, and the belt 44 is sleeved on the drive wheel 42 and the driven wheel 43.

[0041] Specifically, the output shaft of the motor 41 drives the drive wheel 42 to rotate, and the drive wheel 42 drives the driven wheel 43 to rotate via the belt 44. The driven wheel 43 is fixedly sleeved on the rotating shaft 22, and the driven wheel 43 drives the rotating shaft 22 to rotate, thereby the rotating shaft 22 drives the disc body 21 and the cutter 23 to rotate.

[0042] In some embodiments, such as Figure 2As shown, a pressure plate 5 is provided at the end of the rotating shaft 22 away from the disc body 21, and the pressure plate 5 abuts against the driven wheel 43. Specifically, the pressure plate 5 can be detachably connected to the rotating shaft 22 by bolts, and the pressure plate 5 is used to press against the driven wheel 43 to prevent the driven wheel 43 from coming off the rotating shaft 22.

[0043] In some embodiments, such as Figure 2 As shown, the electrode slitting device also includes a bearing 6 sleeved on the rotating shaft 22, and the rotating shaft 22 is rotatably connected to the substrate 1 through the bearing 6. The bearing 6 can reduce the frictional force generated when the rotating shaft 22 rotates relative to the substrate 1.

[0044] In some embodiments, bearing 6 is a tapered needle roller bearing, and there are two bearings 6, which are disposed opposite to each other on the rotating shaft 22. Specifically, the two tapered needle roller bearings can be assembled in a "><" shaped bearing arrangement. An adjusting nut 7 is threaded onto the rotating shaft 22, and the inner ring of one bearing 6 abuts against the disc 21, while the inner ring of the other bearing 6 abuts against the adjusting nut 7.

[0045] Two opposing tapered needle roller bearings ensure the installation accuracy of the rotating shaft 22 and the long service life of the device, while also increasing the axial and radial load capacity of the cutter head assembly 2. The bearing clearance can be easily adjusted using the adjusting nut 7, eliminating the need for post-assembly grinding of the traditional slitting blade 23 to ensure accuracy. After assembly, the clearance can be adjusted by rotating the adjusting nut 7 to achieve the required precision, significantly simplifying the adjustment and assembly process and reducing costs. Optionally, the circular runout and end face runout accuracy of the cutter head assembly 2 are both ≤0.005mm.

[0046] In some embodiments, such as Figure 1 and Figure 2 As shown, a bearing seat 8 is provided between the bearing 6 and the base 1. The bearing seat 8 is provided with a grease passage. The base 1 is provided with a grease injection nozzle 30 that is connected to the grease passage. The grease injection nozzle 30 is connected to the grease passage. Lubricating grease is injected into the grease passage through the grease injection nozzle 30. The grease passage enters the interior of the bearing 6, thereby ensuring the lubrication of the bearing 6.

[0047] In some embodiments, the anti-winding disc 3 is fixedly connected to the bearing seat 8 by bolts, the bearing seat 8 is fixedly connected to the base 1, and the outer wall of the anti-winding disc 3 is in contact with the bearing seat 8 to prevent edge material from entering.

[0048] In some embodiments, such as Figure 1 As shown, the base 1 is provided with a cleaning component 9 which is positioned opposite to the cutter 23. The cleaning component 9 is provided with a cleaning agent pipe 10 and a dust suction pipe 20. The cleaning agent pipe 10 sprays cleaning agent onto the cutter 23 to clean the cutter 23, and the dust on the cutter 23 is sucked away by the dust suction pipe 20, thereby ensuring the cleanliness of the cutter 23.

[0049] In some embodiments, such as Figure 1 and Figure 2 As shown, a protective cover 40 is provided on the side of the base 1 away from the disk 21. The protective cover 40 serves as an external enveloping component to prevent damage to the internal parts.

[0050] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0051] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An electrode slitting device, characterized in that, include: Substrate, cutter head assembly, anti-entanglement disc, and drive assembly; The cutter head assembly includes a disc body, a rotating shaft, and a cutter. The disc body is disposed at one end of the rotating shaft, and the cutter is disposed on the outer peripheral surface of the disc body. The rotating shaft is rotatably connected to the base. The drive assembly is connected to the rotating shaft and is used to drive the rotating shaft to rotate relative to the base. The anti-winding disc cover is located on the side of the disc body facing the rotating shaft, the anti-winding disc is sleeved on the rotating shaft, and the side of the anti-winding disc away from the disc body is connected to the base.

2. The electrode slitting device according to claim 1, characterized in that: The disc body has a groove on the side facing the anti-winding disc, and the outer edge of the anti-winding disc has a raised edge that extends into the groove.

3. The electrode slitting device according to claim 1, characterized in that: The cutter head assembly also includes a pressure plate, which is located on the side of the disc body away from the rotating shaft. The outer periphery of the disc body is provided with a flange, and the pressure plate and the flange clamp the cutter.

4. The electrode slitting device according to claim 1, characterized in that: The drive assembly includes a motor, a drive pulley, a driven pulley, and a belt. The motor is located on the base, the drive pulley is connected to the output shaft of the motor, the driven pulley is connected to the rotating shaft, and the belt is sleeved on the drive pulley and the driven pulley.

5. The electrode slitting device according to claim 4, characterized in that: A pressure plate is provided at the end of the rotating shaft away from the disc body, and the pressure plate abuts against the driven wheel.

6. The electrode slitting device according to claim 1, characterized in that: It also includes a bearing fitted onto the rotating shaft, the rotating shaft being rotatably connected to the base body via the bearing.

7. The electrode slitting device according to claim 6, characterized in that: The bearing is a tapered needle roller bearing, and there are two bearings, which are disposed opposite to each other on the rotating shaft; An adjusting nut is threaded onto the rotating shaft, and the inner ring of one of the bearings abuts against the disc body, while the inner ring of the other bearing abuts against the adjusting nut.

8. The electrode slitting device according to claim 6, characterized in that: A bearing housing is provided between the bearing and the base, and the bearing housing is provided with a grease passage.

9. The electrode slitting device according to claim 8, characterized in that: The anti-entanglement disc is fixedly connected to the bearing seat by bolts.

10. The electrode slitting device according to claim 1, characterized in that: The substrate is provided with a cleaning component that is positioned opposite to the cutter, and the cleaning component is provided with a cleaning agent pipe and a dust suction pipe.

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