Pole piece slitting device

Abstract

The pole piece slitting device comprises a machine body, the machine body is provided with a supply roller, a collection roller, a cutting part, a driving part and a detection assembly, the supply roller is in sliding connection with the machine body, and the collection roller is in sliding connection with the machine body; the cutting part is connected with the machine body and used for cutting the pole piece conveyed to the collecting roller from the supply roller, and the part, between the supply roller and the cutting part, of the pole piece is provided with a first plane; the driving part can adjust the position of the supply roller and / or the collection roller on the machine body; the detection assembly can measure the included angle between the first plane and the horizontal direction so as to control the driving part to adjust the position of the supply roller and / or the collection roller on the machine body. According to the pole piece cutting machine, the detection assembly can detect the angle of the pole piece entering the cutting part, when the angle is too large or too small, the angle of the pole piece entering the cutting part can be changed by adjusting the position of the supply roller and / or the collection roller on the machine body, and the production quality of the pole piece is guaranteed.

Description

Technical Field

[0001] This application relates to the field of electrode slitting technology, and more particularly to an electrode slitting apparatus. Background Technology

[0002] The manufacturing process of lithium batteries includes slitting the electrodes. During this process, it is crucial to avoid burrs, as they can cause dendrites to puncture the separator and lead to internal short circuits. Factors affecting burr formation include the sharpness of the slitting blade and the angle at which the electrode enters the blade.

[0003] Current electrode slitting devices typically adjust the angle at which the electrode enters the slitting blade by manually adjusting the electrode supply roller or collection roller. However, in actual production, the angle at which the electrode enters the slitting blade may change as the electrode supply changes, and the operator cannot adjust the angle in time, affecting the slitting quality of the electrode. Utility Model Content

[0004] This application provides an electrode slitting device to solve the problem that the angle of the electrode entering the slitting knife cannot be adjusted in time when the supply of electrode changes, thus affecting the slitting quality.

[0005] This application provides an electrode slitting device, comprising: a body, wherein the body is provided with:

[0006] A supply roller and a collection roller are provided, wherein the supply roller is slidably connected to the machine body, and the collection roller is slidably connected to the machine body; the supply roller is used to supply the electrode sheets, and the collection roller is used to collect the electrode sheets.

[0007] A cutting section connected to the machine body, the cutting section being used to cut the electrode sheet conveyed from the supply roller to the collecting roller, the portion of the electrode sheet between the supply roller and the cutting section having a first plane;

[0008] A drive unit capable of adjusting the position of the supply roller and / or the collection roller on the machine body;

[0009] The detection component is capable of measuring the angle between the first plane and the horizontal direction to control the drive unit to adjust the position of the supply roller and / or the collection roller on the machine body.

[0010] In one possible design, the detection component includes: a first laser emitter, a first laser receiver, and a controller, with the first laser emitter and the first laser receiver respectively disposed on opposite sides of the first plane along the axial direction of the supply roller;

[0011] The light emitted by the first laser emitter is partially blocked by the electrode between the supply roller and the cutting section. The first laser receiver is able to receive the light. The controller is able to obtain the angle between the first plane and the horizontal direction based on the light received by the first laser receiver, and control the drive unit to adjust the position of the supply roller and / or the collecting roller on the machine body.

[0012] In one possible design, the electrode has a second plane on the portion between the cutting section and the collecting roller, and the detection component is capable of measuring the angle between the second plane and the first plane to control the drive unit to adjust the position of the supply roller and / or the collecting roller on the machine body.

[0013] In one possible design, the detection assembly further includes a second laser emitter and a second laser receiver, which are respectively disposed on both sides of the second plane along the axial direction of the supply roller.

[0014] The light emitted by the second laser emitter is partially blocked by the electrode between the cutting section and the collecting roller. The second laser receiver is able to receive the light. The controller is able to determine the angle between the second plane and the first plane based on the light received by the second laser receiver, and control the drive unit to adjust the position of the supply roller and / or the collecting roller on the machine body.

[0015] In one possible design, the first laser emitter and the second laser emitter are symmetrically arranged on both sides of the cutting section along the axial direction perpendicular to the supply roller;

[0016] Along the axial direction perpendicular to the supply roller, the first laser receiver and the second laser receiver are symmetrically arranged on both sides of the cutting section.

[0017] In one possible design, the machine body includes two support plates, which are respectively supported at both ends of the supply roller and the collection roller, and the detection component is disposed on the support plates.

[0018] In one possible design, the end of the supply roller is provided with a first slider, and the support plate is provided with a first slide rail, wherein the first slider is slidably connected to the first slide rail;

[0019] The end of the collecting roller is provided with a second slider, and the support plate is provided with a second slide rail, and the second slider is slidably connected to the second slide rail.

[0020] In one possible design, the support plate is provided with a first limiting groove, the supply roller has a first roller body, and the end of the first roller body passes through the first limiting groove and is connected to the first slider; the support plate is provided with a second limiting groove, the collecting roller has a second roller body, and the end of the second roller body passes through the second limiting groove and is connected to the second slider.

[0021] In one possible design, the first slide rail is symmetrically arranged on both sides of the first limiting groove; the second slide rail is symmetrically arranged on both sides of the second limiting groove.

[0022] In one possible design, the first slide rail and / or the second slide rail are disposed on the side of the support plate opposite to the electrode plate.

[0023] In this application, uncut electrode sheets are wound on a supply roller. By rotating the supply roller, the electrode sheets are supplied to the cutting section. After the cutting section cuts the electrode sheets, a collecting roller collects the cut electrode sheets by rotating. The angle between the first plane and the horizontal direction is the angle at which the electrode sheet enters the cutting section. During the electrode sheet cutting process, the detection component can detect the angle at which the electrode sheet enters the cutting section. If this angle is too large or too small, the angle at which the electrode sheet enters the cutting section can be changed by adjusting the position of the supply roller and / or the collecting roller on the machine body, so that fewer or no burrs are generated on the cut electrode sheets, thus ensuring the production quality of the electrode sheets.

[0024] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the electrode slitting device provided in this application in a specific embodiment;

[0026] Figure 2 for Figure 1 Top view;

[0027] Figure 3 for Figure 2 A schematic diagram of the images received by the first and second laser receivers.

[0028] Figure 4 for Figure 2 Sectional view along the middle AA direction;

[0029] Figure 5 for Figure 2 Sectional view along the BB direction.

[0030] Figure label:

[0031] 1-The body;

[0032] 11-Support plate;

[0033] 111 - First limiting groove;

[0034] 112 - Second limiting groove;

[0035] 12 - First slide rail;

[0036] 13-Second slide rail;

[0037] 2-Supply roller;

[0038] 21-First roller body;

[0039] 22 - First slider;

[0040] 3-Collection roller;

[0041] 31 - Second roller body;

[0042] 32 - Second slider;

[0043] 4-Cutting section;

[0044] 41-Upper parting cutter;

[0045] 42-Lower slitting blade;

[0046] 43-Upright tool holder;

[0047] 44 - Lower tool holder;

[0048] 5-Electrode;

[0049] 51-First plane;

[0050] 52 - Second plane;

[0051] 6-Detection components;

[0052] 61 - First laser emitter;

[0053] 62 - First laser receiver;

[0054] 63 - Second laser emitter;

[0055] 64 - Second laser receiver.

[0056] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0057] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0058] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0059] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0060] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0061] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0062] This application provides an electrode slitting device, such as... Figure 1 and Figure 2 As shown, the electrode slitting device includes: a body 1, on which are mounted: a supply roller 2, a collection roller 3, a cutting section 4, a drive section (not shown in the figure), and a detection component 6. The supply roller 2 is slidably connected to the body 1, and the collection roller 3 is slidably connected to the body 1. The supply roller 2 is used to supply electrode sheets 5, and the collection roller 3 is used to collect electrode sheets 5. The cutting section 4 is connected to the body 1 and is used to cut the electrode sheets 5 conveyed from the supply roller 2 to the collection roller 3. The portion of the electrode sheet 5 between the supply roller 2 and the cutting section 4 has a first plane 51. The drive section is capable of adjusting the position of the supply roller 2 and / or the collection roller 3 on the body 1. The detection component 6 is capable of measuring the angle α between the first plane 51 and the horizontal direction to control the drive section to adjust the position of the supply roller 2 and / or the collection roller 3 on the body 1.

[0063] In this embodiment, as Figure 1 and Figure 2As shown, uncut electrode sheets 5 are wound on the supply roller 2. By rotating the supply roller 2, the electrode sheets 5 are supplied to the cutting section 4. After the cutting section 4 cuts the electrode sheets 5, the collecting roller 3 collects the cut electrode sheets 5 by rotating. The angle α between the first plane 51 and the horizontal direction is the angle at which the electrode sheet 5 enters the cutting section 4. During the cutting process of the electrode sheet 5, the detection component 6 can detect the angle at which the electrode sheet 5 enters the cutting section 4. If the angle is too large or too small, the angle at which the electrode sheet 5 enters the cutting section 4 can be changed by adjusting the position of the supply roller 2 and / or the collecting roller 3 on the machine body 1, so that there are fewer or no burrs on the cut electrode sheet 5, thus ensuring the production quality of the electrode sheet 5.

[0064] The operator can set a suitable angle range for the electrode 5 to enter the cutting section 4 according to the actual working conditions. When the angle of the electrode 5 entering the cutting section 4 is greater than the maximum value of the suitable angle range, the angle of the electrode 5 entering the cutting section 4 is too large; when the angle of the electrode 5 entering the cutting section 4 is less than the minimum value of the suitable angle range, the angle of the electrode 5 entering the cutting section 4 is too small. Preferably, the angle range of the electrode 5 entering the cutting section 4 is 50°~70°. It is understood that the suitable angle of the electrode 5 entering the cutting section 4 will vary according to the actual working conditions.

[0065] Understandably, the detection component 6 can also obtain the angle at which the electrode 5 enters the cutting section 4 by measuring the angle between the first plane 51 and the vertical direction.

[0066] Specifically, such as Figure 2 and Figure 3 As shown, the detection component 6 includes a first laser emitter 61, a first laser receiver 62, and a controller (not shown in the figure). Along the axial direction of the supply roller 2, the first laser emitter 61 and the first laser receiver 62 are respectively disposed on both sides of the first plane 51. The light emitted by the first laser emitter 61 is partially blocked by the electrode 5 between the supply roller 2 and the cutting section 4. The first laser receiver 62 can receive the light. The controller can obtain the angle α between the first plane 51 and the horizontal direction based on the light received by the first laser receiver 62.

[0067] Along the axial direction of the supply roller 2, a first laser emitter 61 and a first laser receiver 62 are respectively disposed on both sides of the first plane 51. The portion of the light emitted by the first laser emitter 61 that illuminates the side of the electrode 5 is blocked by the electrode 5, while the portion that does not illuminate the electrode 5 can be received by the first laser receiver 62. This results in a first shadow on the image formed by the light received by the first laser receiver 62. By measuring the angle between this first shadow and the horizontal direction, the angle α between the first plane 51 and the horizontal direction can be obtained. The measurement of the angle can be achieved by computer software.

[0068] Furthermore, such as Figure 2 As shown, the electrode 5 has a second plane 52 in the portion between the cutting section 4 and the collecting roller 3. The detection component 6 can measure the angle β between the second plane 52 and the first plane 51 to control the drive unit to adjust the position of the supply roller 2 and / or the collecting roller 3 on the machine body 1.

[0069] By measuring the angle β between the second plane 52 and the first plane 51, the angle γ at which the electrode 5 leaves the cutting section 4 after being cut can be obtained. This allows us to determine the height relationship between the supply roller 2 and the collecting roller 3. For example, when the angle at which the electrode 5 enters the cutting section 4 is greater than the angle at which the electrode 5 leaves the cutting section 4 (i.e., α > γ), the height of the supply roller 2 is higher than the height of the collecting roller 3. Therefore, the height of the supply roller 2 should be lowered and the height of the collecting roller 3 should be raised. When the angle at which the electrode 5 enters the cutting section 4 is less than the angle at which the electrode 5 leaves the cutting section 4 (i.e., α < γ), the height of the supply roller 2 is lower than the height of the collecting roller 3. Therefore, the height of the supply roller 2 should be raised and the height of the collecting roller 3 should be lowered to minimize the height difference between the supply roller 2 and the collecting roller 3. This prevents the tension of the electrode 5 during the transfer process from being affected by the excessive height difference, which could lead to bending of the electrode 5 and misalignment of the cutting section 4.

[0070] Specifically, such as Figure 2 and Figure 3 As shown, the detection component 6 further includes a second laser emitter 63 and a second laser receiver 64. Along the axial direction of the supply roller 2, the second laser emitter 63 and the second laser receiver 64 are respectively disposed on both sides of the second plane 52. The light emitted by the second laser emitter 63 is partially blocked by the electrode 5 between the cutting section 4 and the collecting roller 3. The second laser receiver 64 can receive the light. The controller can obtain the angle β between the second plane 52 and the first plane 51 based on the light received by the second laser receiver 64, and control the drive unit to adjust the position of the supply roller 2 and / or the collecting roller 3 on the machine body 1.

[0071] The second laser emitter 63 and the second laser receiver 64 are respectively disposed on both sides of the second plane 52. The portion of the light emitted by the second laser emitter 63 that illuminates the side of the electrode 5 is blocked, while the portion that does not illuminate the electrode 5 can be received by the second laser receiver 64, so that the image composed of the light received by the second laser receiver 64 has a second shadow. By extending the first shadow and the second shadow, and measuring the angle between the two extension lines, the angle β between the second plane 52 and the first plane 51 can be obtained.

[0072] Preferably, the suitable angle range for the included angle β is 100°~140°. It is understood that the suitable angle range for the included angle β will vary depending on the actual working conditions.

[0073] This is understandable; you can also directly measure the angle γ between the second shadow and the horizontal direction. The sum of the angles α, β, and γ is 180°.

[0074] Preferably, along the axial direction of the vertical supply roller 2, the first laser emitter 61 and the second laser emitter 63 are symmetrically arranged on both sides of the cutting section 4; along the axial direction of the vertical supply roller 2, the first laser receiver 62 and the second laser receiver 64 are symmetrically arranged on both sides of the cutting section 4, so as to ensure that the extension lines of the first shadow and the second shadow can intersect, and to prevent the light emitted by the first laser emitter 61 and the second laser emitter 63 from having an angle, resulting in no angle that can be measured or inaccurate measurement results.

[0075] Furthermore, the detection component 6 can measure the angle α between the first plane 51 and the horizontal direction and the angle β between the second plane 52 and the first plane 51 at fixed intervals to ensure that the angle at which the electrode 5 enters the cutting section 4 and the angle at which the electrode 5 leaves the cutting section 4 are within a suitable range during the electrode slitting process. The fixed interval can be selected according to the actual working conditions.

[0076] Understandably, the drive unit is a servo motor, which adjusts the positions of the supply roller 2 and the collection roller 3 on the machine body 1. The control unit calculates the adjustment distance and then controls the servo motor to operate.

[0077] In one specific implementation, such as Figure 1 and Figure 2 As shown, the machine body 1 includes two support plates 11, which are respectively supported at both ends of the supply roller 2 and the collection roller 3, and the detection component 6 is disposed on the support plate 11.

[0078] In this embodiment, two support plates 11 are respectively supported at both ends of the supply roller 2 and the collection roller 3, so that the supply roller 2 and the collection roller 3 can remain stable during the process of cutting the electrode sheet 5, thereby ensuring the cutting quality of the electrode sheet 5.

[0079] Optionally, the first laser emitter 61 and the second laser emitter 63 are disposed on one support plate 11, and the first laser receiver 62 and the second laser receiver 64 are disposed on another support plate 11.

[0080] Furthermore, such as Figure 1 and Figure 2As shown, the end of the supply roller 2 is provided with a first slider 22, and the support plate 11 is provided with a first slide rail 12. The first slider 22 is slidably connected to the first slide rail 12. The first slide rail 12 can guide the movement of the first slider 22, making the movement of the supply roller 2 relative to the machine body 1 more stable. Similarly, the end of the collecting roller 3 is provided with a second slider 32, and the support plate 11 is provided with a second slide rail 13. The second slider 32 is slidably connected to the second slide rail 13. The second slide rail 13 can guide the movement of the second slider 32, making the movement of the collecting roller 3 relative to the machine body 1 more stable.

[0081] In addition, the first slider 22 is disposed at both ends of the supply roller 2, and the two first sliders 22 slide synchronously so that the axial direction of the supply roller 2 will not deflect; the second slider 32 is disposed at both ends of the collection roller 3, and the two second sliders 32 slide synchronously so that the axial direction of the collection roller 3 will not deflect.

[0082] Furthermore, such as Figure 1 and Figure 2 As shown, the support plate 11 is provided with a first limiting groove 111, and the supply roller 2 has a first roller body 21. The end of the first roller body 21 passes through the first limiting groove 111 and is connected to the first slider 22. The first limiting groove 111 can limit the range of motion of the supply roller 2 and improve the certainty of the movement trajectory of the supply roller 2.

[0083] Similarly, the support plate 11 is provided with a second limiting groove 112, and the collecting roller 3 has a second roller body 31. The end of the second roller body 31 passes through the second limiting groove 112 and is connected to the second slider 32. The second limiting groove 112 can limit the range of motion of the collecting roller 3 and improve the certainty of the trajectory of the collecting roller 3.

[0084] Preferred, such as Figure 1 As shown, the first slide rail 12 is symmetrically arranged on both sides of the first limiting groove 111, making the connection between the first slider 22 and the first slide rail 12 more reliable and the sliding of the first slider 22 along the first slide rail 12 more stable. The second slide rail 13 is symmetrically arranged on both sides of the second limiting groove 112, making the connection between the second slider 32 and the second slide rail 13 more reliable and the sliding of the second slider 32 along the second slide rail 13 more stable.

[0085] Preferably, the first slide rail 12 and / or the second slide rail 13 are disposed on the side of the support plate 11 away from the electrode 5, that is, at least one of the first slider 22 and the second slider 32 is located on the outside of the two support plates 11. This facilitates the adjustment of the height of the supply roller 2 by driving the first slider 22 and the adjustment of the height of the collection roller 3 by driving the second slider 32. On the other hand, it prevents the first slider 22 and the second slider 32 from interfering with the electrode 5 and affecting the cutting of the electrode 5. In addition, the structure of the electrode cutting device is more reasonable and the size is smaller.

[0086] In the above embodiments, such as Figure 4 and Figure 5 As shown, the cutting section 4 includes an upper slitting blade 41, a lower slitting blade 42, an upper blade holder 43, and a lower blade holder 44. The upper slitting blade 41 is disposed on the upper blade holder 43, and the lower slitting blade 42 is disposed on the lower blade holder 44. The electrode sheet 5 passes through the upper blade holder 43 and the lower blade holder 44, and the upper slitting blade 41 and the lower slitting blade 42 slit the electrode sheet 5.

[0087] The upper blade holder 43 and the lower blade holder 44 are fixedly connected to the two support plates 11 respectively, so that the upper slitting blade 41 and the lower slitting blade 42 can remain stable during the slitting process of the electrode sheet 5, and ensure the slitting effect of the electrode sheet 5.

[0088] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electrode slitting device, characterized in that, The electrode slitting device includes: a body (1), on which are provided: Supply roller (2) and collection roller (3), the supply roller (2) is slidably connected to the machine body (1), the collection roller (3) is slidably connected to the machine body (1), the supply roller (2) is used to supply electrode sheet (5), and the collection roller (3) is used to collect the electrode sheet (5). A cutting section (4) is connected to the machine body (1). The cutting section (4) is used to cut the electrode (5) conveyed by the supply roller (2) to the collecting roller (3). The electrode (5) has a first plane (51) in the portion between the supply roller (2) and the cutting section (4). A drive unit capable of adjusting the position of the supply roller (2) and / or the collection roller (3) on the machine body (1); The detection component (6) is capable of measuring the angle between the first plane (51) and the horizontal direction to control the drive unit to adjust the position of the supply roller (2) and / or the collection roller (3) on the machine body (1).

2. The electrode slitting device according to claim 1, characterized in that, The detection component (6) includes: a first laser emitter (61), a first laser receiver (62) and a controller. Along the axial direction of the supply roller (2), the first laser emitter (61) and the first laser receiver (62) are respectively disposed on both sides of the first plane (51). The light emitted by the first laser emitter (61) is partially blocked by the electrode (5) between the supply roller (2) and the cutting section (4). The first laser receiver (62) is able to receive the light. The controller is able to obtain the angle between the first plane (51) and the horizontal direction based on the light received by the first laser receiver (62), and control the drive unit to adjust the position of the supply roller (2) and / or the collecting roller (3) on the machine body (1).

3. The electrode slitting device according to claim 2, characterized in that, The electrode (5) has a second plane (52) between the cutting section (4) and the collecting roller (3). The detection component (6) is able to measure the angle between the second plane (52) and the first plane (51) to control the drive unit to adjust the position of the supply roller (2) and / or the collecting roller (3) on the machine body (1).

4. The electrode slitting device according to claim 3, characterized in that, The detection component (6) further includes a second laser emitter (63) and a second laser receiver (64), which are respectively disposed on both sides of the second plane (52) along the axial direction of the supply roller (2). The light emitted by the second laser emitter (63) is partially blocked by the electrode (5) between the cutting section (4) and the collecting roller (3). The second laser receiver (64) is able to receive the light. The controller is able to obtain the angle between the second plane (52) and the first plane (51) based on the light received by the second laser receiver (64), and control the drive unit to adjust the position of the supply roller (2) and / or the collecting roller (3) on the machine body (1).

5. The electrode slitting device according to claim 4, characterized in that, Along the axial direction perpendicular to the supply roller (2), the first laser emitter (61) and the second laser emitter (63) are symmetrically arranged on both sides of the cutting section (4); Along the axial direction perpendicular to the supply roller (2), the first laser receiver (62) and the second laser receiver (64) are symmetrically arranged on both sides of the cutting section (4).

6. The electrode slitting apparatus according to any one of claims 1-5, characterized in that, The machine body (1) includes two support plates (11), which are respectively supported at both ends of the supply roller (2) and the two ends of the collection roller (3), and the detection component (6) is disposed on the support plate (11).

7. The electrode slitting device according to claim 6, characterized in that, The end of the supply roller (2) is provided with a first slider (22), and the support plate (11) is provided with a first slide rail (12). The first slider (22) is slidably connected to the first slide rail (12). The end of the collecting roller (3) is provided with a second slider (32), and the support plate (11) is provided with a second slide rail (13). The second slider (32) is slidably connected to the second slide rail (13).

8. The electrode slitting device according to claim 7, characterized in that, The support plate (11) is provided with a first limiting groove (111), and the supply roller (2) has a first roller body (21). The end of the first roller body (21) passes through the first limiting groove (111) and is connected to the first slider (22). The support plate (11) is provided with a second limiting groove (112), and the collecting roller (3) has a second roller body (31). The end of the second roller body (31) passes through the second limiting groove (112) and is connected to the second slider (32).

9. The electrode slitting device according to claim 8, characterized in that, The first slide rail (12) is symmetrically arranged on both sides of the first limiting groove (111); The second slide rail (13) is symmetrically arranged on both sides of the second limiting groove (112).

10. The electrode slitting apparatus according to claim 7, characterized in that, The first slide rail (12) and / or the second slide rail (13) are disposed on the side of the support plate (11) away from the electrode (5).

Images