Pole piece cutting device

Abstract

The application relates to a pole piece cutting device. The pole piece cutting device comprises a cutter seat, a cutter assembly, a mounting frame, a buffer structure and a buffer adjusting piece. The cutter seat is used for bearing a pole piece to be cut. The cutter assembly can cut the pole piece in butt joint with the cutter seat along a first direction. The mounting frame comprises a main body part and an assembly part connected with each other. The cutter assembly is slidingly arranged in the assembly part along the first direction. The buffer structure is elastically arranged between the cutter assembly and the main body part along the first direction. The buffer adjusting piece is arranged between the buffer structure and the main body part and is used for adjusting the compression amount of the buffer structure before the cutter assembly contacts the pole piece. After the cutter assembly contacts the pole piece, the mounting frame continues to move downward, the buffer structure continues to be compressed to provide a cutting force to the cutter assembly, and the greater the initial compression amount is, the greater the cutting force provided to the cutter assembly is. If the pole piece cannot be cut off, the initial compression amount of the buffer structure can be adjusted through the buffer adjusting piece.

Description

Technical Field

[0001] This application relates to the field of electrode cutting technology, and in particular to electrode cutting apparatus. Background Technology

[0002] In the lithium battery winding or stacking process, continuous electrode sheets or rolls need to be cut into individual electrode sheets. Electrode cutting equipment typically includes a cutter and a buffer structure. The buffer structure provides cushioning force to the cutter, preventing damage caused by direct contact between the cutter and hard objects during electrode cutting.

[0003] Traditional electrode cutting devices have a fixed initial elastic force in the buffer structure, and the cutting force provided by the cutter within the set moving cutting distance is also fixed. This results in insufficient cutting force from the cutter, making it impossible to cut the electrode. Utility Model Content

[0004] In view of the above problems, this application provides an electrode cutting device that can adjust the initial elastic force of the buffer structure.

[0005] This application provides an electrode cutting device, which includes:

[0006] The blade holder is used to support the electrode sheets to be cut.

[0007] The cutting assembly is capable of docking with the blade holder for cutting along a first direction;

[0008] The mounting bracket includes a main body and an assembly part connected together, and the cutter assembly is slidably disposed on the assembly part along a first direction;

[0009] A buffer structure is elastically disposed between the cutter assembly and the main body along a first direction;

[0010] A buffer adjustment element is disposed between the buffer structure and the main body; the buffer adjustment element is configured to adjust the compression of the buffer structure before the cutter assembly contacts the electrode.

[0011] In the technical solution of this application embodiment, the electrode sheet is supported by a blade holder, and the cutting assembly moves towards the blade holder to connect with it, thereby achieving the cutting of the electrode sheet. A buffer structure is provided between the cutting assembly and the main body to buffer the contact between the cutting assembly and the electrode sheet or blade holder, reducing hard contact and providing good protection for the cutting assembly. Furthermore, the initial compression of the buffer structure before the cutting assembly contacts the electrode sheet is adjusted by a buffer adjustment member. After the cutting assembly contacts the electrode sheet, the mounting bracket continues to move downwards, and the buffer structure continues to be compressed, providing cutting force to the cutting assembly. The greater the initial compression, the greater the cutting force provided to the cutting assembly. If the electrode sheet cannot be cut, the initial compression of the buffer structure can be adjusted by the buffer adjustment member, improving the accuracy of the cutting force of the cutting assembly on the electrode sheet and thus improving the cutting quality of the electrode sheet.

[0012] In some other embodiments, the cutter assembly includes a cutter and a guide post, with the cutting edge of the cutter facing the cutter holder; the guide post extends in a first direction and is connected to the side of the cutter away from the cutter holder.

[0013] In the technical solution of this application embodiment, a guide post is provided on the side of the cutter away from the cutter holder, and the guide post is directly or indirectly connected to the main body, which facilitates the installation of the cutter assembly on the main body.

[0014] In some other embodiments, the buffer adjustment includes:

[0015] A connector is provided along the extension direction of the blade of the cutter, a guide post is slidably provided on the connector along a first direction, and a buffer structure is sleeved on the guide post and located between the connector and the cutter.

[0016] An adjustment drive is provided, with its fixed end located in the main body and its driving end connected to the connector, for driving the connector to move along a first direction.

[0017] In the technical solution of this application embodiment, the buffer adjustment component is configured to include a connector and an adjustment drive component. The guide post is slidably disposed on the connector, and the connector abuts against the upper end of the buffer structure, so that the connector and the tool holder form a clamping limit on the buffer structure. By adjusting the drive component to drive the connector to move up and down, the initial distance between the connector and the tool holder is adjusted, thereby realizing the adjustment of the initial compression of the buffer structure.

[0018] In some other embodiments, two adjustment driving members are provided, which are respectively located at both ends of the connector along the blade extension direction. Each adjustment driving member can independently drive the connector to move along the first direction to adjust the angle between the connector extension direction and the blade extension direction.

[0019] In the technical solution of this application embodiment, the height of both ends of the connector can be adjusted respectively to adjust the distance between the connector and the tool holder in the left and right directions.

[0020] In some other embodiments, multiple guide posts are provided, which are spaced apart along the extension direction of the cutting edge, and each guide post is fitted with a buffer structure.

[0021] In the technical solution of this application embodiment, the distance between the connector and the blade holder in the left and right directions is adjusted by two adjusting drive components, so that multiple buffer structures can achieve different compression amounts, so that the cutter can achieve different cutting forces at different positions, thereby meeting the cutting requirements of various electrode sheets.

[0022] In some other embodiments, the electrode cutting device further includes:

[0023] A displacement sensor, located on the surfaces of the connected component and / or the cutter facing each other, is used to detect the relative movement distance between the connected component and the cutter.

[0024] In the technical solution of this application embodiment, the compression change of the buffer structure during the cutting process can be automatically detected, and the adjustment drive can adjust the initial compression of the buffer structure in real time according to the detection result of the displacement sensor, which is beneficial to improving the cutting effect and cutting efficiency of the electrode cutting device.

[0025] In some other embodiments, the assembly includes:

[0026] A guide rail extends along a first direction and is disposed on at least one side of the cutter assembly along the direction of its blade extension; the cutter assembly is slidably disposed along the guide rail.

[0027] In the technical solution of this application embodiment, a guide rail is set to provide guidance for the up and down movement of the cutter assembly, thereby improving the movement stability of the cutter assembly.

[0028] In some other embodiments, the assembly further includes:

[0029] The first limiting member is disposed on the guide rail and located on the side of the cutter assembly facing the cutter holder, and can abut against the cutter assembly.

[0030] In the technical solution of this application embodiment, a first limiting member is set to abut and limit the cutting blade assembly. Before the cutting blade assembly is released from the electrode plate on the blade holder, it is abutted against the first limiting member by the elastic force of the buffer structure. By adjusting the distance between the first limiting member and the connecting member, the initial compression amount of the buffer structure can be adjusted.

[0031] In some other embodiments, the first limiting member is adjustablely disposed on the guide rail along a first direction.

[0032] In the technical solution of this application embodiment, by adjusting the position of the first limiting member in the vertical direction, the position of the cutter in the initial state is adjusted, thereby adjusting the distance between the blade and the blade holder, which can adapt to electrode sheets of different thicknesses.

[0033] In some other embodiments, the guide rails on both sides of the cutter assembly are provided with first limiting members, and each can adjust its position along the first direction.

[0034] In the technical solution of this application embodiment, when the cutter tilts and cannot remain parallel to the cutter holder, the horizontality of the blade can be adjusted by adjusting the height of the first limiting member so that the blade fits with the cutter holder, thereby enabling the electrode to be cut at all positions and improving the consistency of the cutting edge.

[0035] In some other embodiments, the assembly further includes:

[0036] The second limiting member is disposed on the guide rail at a distance from the first limiting member and is located on the side of the first limiting member away from the blade holder; the second limiting member is used to abut against the cutting blade assembly.

[0037] In the technical solution of this application embodiment, a second limiting member is set to abut and limit the movement of the pad during the cutting process, thereby keeping the buffer structure within its elastic range and providing good protection for the buffer structure.

[0038] In some other embodiments, a groove is provided on the side of the guide rail facing the cutter, and the cutter assembly can slide along the groove;

[0039] The first and second limiting members are inserted into the groove.

[0040] In the technical solution of this application embodiment, a sliding groove is provided to guide the up and down sliding of the cutter assembly. The first limiting member and the second limiting member are inserted into the sliding groove to limit the cutting assembly.

[0041] In some other embodiments, the assembly further includes:

[0042] A first mounting plate and a second mounting plate are spaced apart on the main body along a first direction; a first limiting member is disposed on the first mounting plate near the tool holder, and a second limiting member is disposed on the second mounting plate away from the tool holder; a guide rail is connected to the first mounting plate and / or the second mounting plate.

[0043] In the technical solution of this application embodiment, by setting a first mounting plate and a second mounting plate, support is provided for the first limiting member, the second limiting member and the guide rail, so as to improve the convenience of installation.

[0044] In some other embodiments, an adjusting bolt is rotatably provided on the side of the first mounting plate facing the second mounting plate, and the adjusting bolt extends along a first direction;

[0045] One end of the first limiting member extends into the slide groove, and the other end is threadedly connected to the adjusting bolt. The adjusting bolt can be turned to adjust the first limiting member to slide along the first direction.

[0046] In the technical solution of this application embodiment, the upper and lower positions of the first limiting member are adjusted by setting adjusting bolts on the first mounting plate. The structure is relatively simple and the adjustment is relatively convenient.

[0047] In some other embodiments, the electrode cutting device further includes:

[0048] The cutting drive unit, whose drive end is connected to the main body, is used to drive the cutting blade assembly to move relative to the blade holder for docking and cutting.

[0049] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0050] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0051] Figure 1 This is a schematic diagram of the structure of the electrode cutting device according to some embodiments of this application;

[0052] Figure 2 This is a schematic diagram of a buffer structure according to some embodiments of this application;

[0053] Figure 3 This is a schematic diagram of another buffer structure according to some embodiments of this application;

[0054] Figure 4 This is a schematic diagram of the structure of the cutter and the first limiting member in some embodiments of this application;

[0055] Figure 5 This is a schematic diagram of the guide rail and pad block structure in some embodiments of this application;

[0056] Figure 6 This is a schematic diagram of the structure of the blade holder and cutting blade assembly in some embodiments of this application.

[0057] The reference numerals in the detailed embodiments are as follows:

[0058] 100. Electrode;

[0059] 1. Knife holder;

[0060] 2. Cutting assembly; 21. Cutting blade; 211. Blade; 212. Blade holder; 213. Spacer block; 22. Guide post;

[0061] 3. Mounting bracket; 31. Main body; 311. Column; 312. Horizontal beam; 32. Assembly part; 321. Guide rail; 3211. Slide groove; 3212. Ball bearing; 322. First limiting member; 323. Second limiting member; 324. First mounting plate; 325. Second mounting plate; 326. Adjusting bolt;

[0062] 5. Buffer structure;

[0063] 6. Buffer adjustment component; 61. Connecting component; 62. Adjustment drive component;

[0064] 7. Displacement sensor. Detailed Implementation

[0065] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0067] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0068] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0069] In the description of the embodiments in this application, the term "and / or" 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 document generally indicates that the preceding and following related objects have an "or" relationship.

[0070] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0071] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0072] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0073] Currently, judging from market trends, battery applications are becoming increasingly widespread. Batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in other fields. With the continuous expansion of battery applications, market demand is also constantly increasing.

[0074] In the lithium battery winding or stacking process, continuous electrode sheets or rolls need to be cut into individual electrode sheets. Electrode cutting equipment typically includes a cutter and a buffer structure. The buffer structure provides cushioning force to the cutter, preventing damage caused by direct contact between the cutter and hard objects during electrode cutting.

[0075] The inventors of this application have noticed that in traditional electrode cutting devices, the initial elastic force of the buffer structure is fixed, and the cutting force provided by the cutter within the set moving cutting distance is fixed, resulting in insufficient cutting force of the cutter and inability to cut the electrode.

[0076] Based on the above considerations, in order to solve the problem that the initial elastic force of the buffer structure cannot be adjusted, the inventors, after in-depth research, designed an electrode cutting device. By setting a buffer adjustment component between the buffer structure and the mounting frame, the elastic compression of the buffer structure before contact with the electrode to be cut is adjusted, thereby realizing the adjustment of the cutting force provided by the buffer structure to the cutting assembly, so as to improve the accuracy of the cutting force of the cutting assembly on the electrode.

[0077] The specific structure of the electrode cutting device will be described in detail below with reference to the accompanying drawings.

[0078] Please see Figure 1 , Figure 1 A schematic diagram of the structure of an electrode cutting device according to some embodiments of this application is shown. Embodiments of this application provide an electrode cutting device including a blade holder 1, a cutting blade assembly 2, a mounting frame 3, a buffer structure 5, and a buffer adjustment member 6. The blade holder 1 is used to support the electrode 100 to be cut, and the cutting blade assembly 2 is capable of cutting by engaging with the blade holder 1 along a first direction. The mounting frame 3 includes a main body portion 31 and an assembly portion 32 connected together, and the cutting blade assembly 2 is slidably disposed on the assembly portion 32 along the first direction. The buffer structure 5 is elastically disposed between the cutting blade assembly 2 and the main body portion 31 along the first direction, and the buffer adjustment member 6 is disposed between the buffer structure 5 and the main body portion 31, configured to adjust the compression amount of the buffer structure 5 before the cutting blade assembly 2 contacts the electrode 100. The first direction is specifically as follows: Figure 1 The first state, as shown in the up-down direction, specifically refers to the state before the cutter assembly 2 contacts the electrode 100 on the cutter holder 1.

[0079] The electrode cutting device provided in this embodiment supports the electrode 100 by setting a blade holder 1, and cuts the electrode 100 by moving the cutting assembly 2 towards the blade holder 1. A buffer structure 5 is provided between the cutting assembly 2 and the main body 31 to buffer the contact between the cutting assembly 2 and the electrode 100 or the blade holder 1, reducing hard contact and providing good protection for the cutting assembly 2. Furthermore, the initial compression of the buffer structure 5 before contact between the cutting assembly 2 and the electrode 100 is adjusted by setting a buffer adjustment member 6. After the cutting assembly 2 contacts the electrode 100, the mounting bracket 3 continues to move downwards, and the buffer structure 5 continues to be compressed, providing cutting force to the cutting assembly 2. The greater the initial compression, the greater the cutting force provided to the cutting assembly 2. If there is a situation where the electrode 100 cannot be cut, the initial compression of the buffer structure 5 can be adjusted by the buffer adjustment component 6, which improves the accuracy of the cutting force of the cutter assembly 2 on the electrode 100 and helps to improve the cutting quality of the electrode 100.

[0080] In some embodiments, the main body 31 is configured as a gantry structure, including a crossbeam 312 and two columns 311. The two columns 311 are arranged at intervals on the left and right sides, and the crossbeam 312 is located at the upper end of the two columns 311, connecting the two columns 311. The cutter assembly 2 is disposed between the two columns 311, and mounting parts 32 are respectively provided on the sides of the two columns 311 facing the cutter assembly 2 to limit the installation of the left and right ends of the cutter assembly 2.

[0081] In some embodiments, please refer to... Figure 1 The cutter assembly 2 includes a cutter 21 and a guide post 22. The cutting edge of the cutter 21 faces the cutter holder 1. The guide post 22 extends vertically and is connected to the side of the cutter 21 opposite to the cutter holder 1. That is, the cutter holder 1 is located below the cutter 21, and the guide post 22 is connected to the upper side of the cutter 21. By providing the guide post 22 on the side of the cutter 21 opposite to the cutter holder 1, and by directly or indirectly connecting the guide post 22 to the main body 31, it is convenient to install the cutter assembly 2 on the main body 31.

[0082] Specifically, the blade of the cutter 21 extends in the left-right direction, and during cutting, a cut extending in the left-right direction is made on the electrode 100.

[0083] Optionally, the cutter 21 includes a blade 211, a blade holder 212, and a pad 213. The blade 211 is mounted on the blade holder 212 and is used to cooperate with the blade holder 1 for cutting. Pads 213 are respectively provided on the left and right sides of the blade holder 212. The pads 213 protrude from the blade holder 212 and are used for assembly connection with the assembly part 32.

[0084] In some embodiments, the buffer adjustment member 6 includes a connector 61 and an adjustment drive member 62. The connector 61 is arranged along the blade extension direction of the cutter 21, i.e., the left-right direction. The guide post 22 is slidably disposed on the connector 61 in the up-down direction. The buffer structure 5 is sleeved on the guide post 22 and located between the connector 61 and the cutter 21. The fixed end of the adjustment drive member 62 is disposed on the main body 31, and the driving end of the adjustment drive member 62 is connected to the connector 61 for driving the connector 61 to move in the up-down direction. By configuring the buffer adjustment member 6 to include the connector 61 and the adjustment drive member 62, and slidably disposing the guide post 22 on the connector 61, the upper end of the buffer structure 5 is abutted by the connector 61, so that the connector 61 and the cutter holder 212 form a clamping limit on the buffer structure 5. By driving the connector 61 to move up and down by the adjustment drive member 62, the initial distance between the connector 61 and the cutter holder 212 is adjusted, thereby realizing the adjustment of the initial compression of the buffer structure 5.

[0085] Optionally, the adjusting drive component 62 can be a pneumatic cylinder or an electric cylinder, which drives the connected connecting component 61 to move up and down by extending or retracting the pneumatic cylinder or electric cylinder. Of course, the adjusting drive component 62 can also be a motor screw module or other linear drive structure, and there is no limitation here.

[0086] During cutting, the connecting piece 61 and the blade holder 212 move relative to each other by a certain distance, which corresponds to a change in the compression of the buffer structure 5. If this distance exceeds a preset value, it indicates that the initial compression of the buffer structure 5 is too small, resulting in insufficient cutting force, and the initial compression of the buffer structure 5 should be increased. Conversely, the initial compression of the buffer structure 5 can be decreased.

[0087] In some embodiments, two adjustment drive members 62 are provided, each located at one end of the connector 61 along the blade extension direction. Each drive member 62 can independently drive the connector 61 to move vertically, thereby adjusting the angle between the extension direction of the connector 61 and the blade extension direction. This configuration allows for adjustment of the height at both ends of the connector 61, thus regulating the lateral distance between the connector 61 and the tool holder 212.

[0088] In some embodiments, multiple guide posts 22 are provided, spaced apart along the blade extension direction, and each guide post 22 is fitted with a buffer structure 5. By adjusting the distance between the connector 61 and the blade holder 212 in the left-right direction through two adjusting drive components 62, the multiple buffer structures 5 can achieve different compression amounts, so that the cutter 21 can achieve different cutting forces at different positions, thereby meeting the cutting requirements of various electrode sheets 100.

[0089] Please see Figure 2 , Figure 2A schematic diagram of a buffer structure 5 according to some embodiments of this application is shown. In some embodiments, the buffer structure 5 uses a spring, which is sleeved on the guide post 22 to provide good elastic buffering.

[0090] Please see Figure 3 , Figure 3 A schematic diagram of another buffer structure 5 according to some embodiments of this application is shown. In some embodiments, the buffer structure 5 may also employ an elastic gasket, which may be sleeved on the guide post 22, or the elastic gasket may avoid the guide post 22 and be fixed on the side of the tool holder 212 facing the connector 61, compressed and disposed between the tool holder 212 and the connector 61.

[0091] In some embodiments, please refer back to the documentation. Figure 1 The electrode cutting device also includes a displacement sensor 7, which is disposed on the surfaces of the connected member 61 and / or the cutter 21 facing each other, and is used to detect the relative movement distance between the connected member 61 and the cutter 21. In this way, the change in compression of the buffer structure 5 during the cutting process can be automatically detected, and the adjusting drive 62 can adjust the initial compression of the buffer structure 5 in real time according to the detection result of the displacement sensor 7, which is beneficial to improving the cutting effect and cutting efficiency of the electrode cutting device.

[0092] In some embodiments, please refer to Figure 1 The electrode cutting device also includes a guide rail 321, which extends vertically and is located on at least one side of the cutter assembly 2 along its blade extension direction. The cutter assembly 2 is slidably mounted along the guide rail 321. By providing the guide rail 321, the vertical movement of the cutter assembly 2 is guided, thereby improving the stability of the cutter assembly 2's movement.

[0093] In some embodiments, combined with Figure 1 and Figure 4 As shown, Figure 4 A schematic diagram of the cutter 21 and the first limiting member 322 according to some embodiments of this application is shown. The assembly part 32 also includes the first limiting member 322, which is disposed on the guide rail 321 and located on the side of the cutter assembly 2 facing the cutter holder 1, and can abut against the cutter assembly 2. By setting the first limiting member 322 to abut and limit the cutter assembly 2, before the cutter assembly 2 is released from the electrode 100 on the cutter holder 1, it is abutted against the first limiting member 322 by the elastic force of the buffer structure 5. By adjusting the distance between the first limiting member 322 and the connecting member 61, the initial compression amount of the buffer structure 5 can be adjusted.

[0094] Optionally, the first limiting member 322 is adjustablely disposed on the guide rail 321 along the first direction. By adjusting the position of the first limiting member 322 in the vertical direction, the position of the cutter 21 in the initial state can be adjusted, thereby adjusting the distance between the blade 211 and the blade holder 1, thus adapting to electrode sheets 100 of different thicknesses.

[0095] In some embodiments, the guide rails 321 on both sides of the cutter assembly 2 are each provided with a first limiting member 322, and each can be adjusted in position along a first direction. With this configuration, when the cutter 21 tilts and cannot remain parallel to the cutter holder 1, the levelness of the blade 211 can be adjusted by adjusting the height of the first limiting member 322, so that the blade 211 fits into the cutter holder 1, thereby enabling the electrode sheet 100 to be cut at all positions, thus improving the consistency of the cutting edge.

[0096] In some embodiments, the assembly part 32 further includes a second limiting member 323, which is spaced apart from the first limiting member 322 on the guide rail 321 and located on the side of the first limiting member 322 away from the blade holder 1; the second limiting member 323 is used to abut against the cutting blade assembly 2. By setting the second limiting member 323 to abut against and limit the movement of the pad 213 during the cutting process, the buffer structure 5 is kept within its elastic range, thus providing good protection for the buffer structure 5.

[0097] Combination Figure 5 As shown, Figure 5 A schematic diagram of the guide rail 321 and pad 213 according to some embodiments of this application is shown. A groove 3211 is provided on the side of the guide rail 321 facing the cutter 21, allowing the cutter assembly 2 to slide along the groove 3211. A first limiting member 322 and a second limiting member 323 are inserted into the groove 3211. The groove 3211 provides guidance for the up-and-down sliding of the cutter assembly 2, and the first limiting member 322 and the second limiting member 323 are inserted into the groove 3211 to limit the movement of the cutter assembly 2.

[0098] Specifically, the first limiting member 322 is disposed at the lower end of the slide groove 3211, the second limiting member 323 is disposed at the upper end of the slide groove 3211, and the pad block 213 slides between the first limiting member 322 and the second limiting member 323.

[0099] Optionally, in the front-to-back direction, the width of the pad 213 is equal to or slightly smaller than the width of the groove 3211, so as to limit the front-to-back position of the pad 213 by the groove 3211, which helps to improve the stability of the cutter assembly 2 during the cutting process.

[0100] To improve the smoothness of the sliding of the pad 213 along the slide groove 3211, a ball bearing 3212 is provided between the pad 213 and the slide groove 3211. The ball bearing 3212 reduces the sliding resistance of the pad 213. The ball bearing 3212 can be rolled and embedded in the pad 213 or the slide groove 3211.

[0101] In some embodiments, please refer back to the documentation. Figure 1 The assembly part 32 also includes a first mounting plate 324 and a second mounting plate 325, which are spaced apart vertically from the column 311. A first limiting member 322 is disposed near the first mounting plate 324 of the tool holder 1, and a second limiting member 323 is disposed away from the second mounting plate 325 of the tool holder 1. A guide rail 321 is connected to the first mounting plate 324 and / or the second mounting plate 325. By providing the first mounting plate 324 and the second mounting plate 325, support is provided for the first limiting member 322, the second limiting member 323, and the guide rail 321, thereby improving the ease of installation.

[0102] In some embodiments, an adjusting bolt 326 is rotatably provided on the side of the first mounting plate 324 facing the second mounting plate 325, and the adjusting bolt 326 extends in the vertical direction. One end of the first limiting member 322 extends into the sliding groove 3211, and the other end is threadedly connected to the adjusting bolt 326. The adjusting bolt 326 can be turned to adjust the sliding of the first limiting member 322 in the vertical direction. By providing an adjusting bolt 326 on the first mounting plate 324 to adjust the vertical position of the first limiting member 322, the structure is relatively simple and the adjustment is relatively convenient.

[0103] Specifically, the lower end of the adjusting bolt 326 is rotatably mounted on the second mounting plate 325, and the axial movement of the adjusting bolt 326 is restricted by a baffle, so as to drive the first limiting member 322 to move up and down when the adjusting bolt 326 is turned.

[0104] In some embodiments, the electrode cutting device further includes a cutting drive (not shown in the figure), the drive end of which is connected to the mounting bracket 3 and is used to drive the cutter assembly 2 to move relative to the cutter holder 1 to dock and cut with the cutter holder 1.

[0105] like Figure 6 As shown, Figure 6 This is a schematic diagram of the structure of the blade holder 1 and the cutting blade assembly 2 according to some embodiments of this application. In some embodiments, the blade holder 1 is configured as a roller structure, and the cutting drive drives the cutting blade assembly 2 to rotate. When the blade 211 is aligned with the roller structure, the electrode sheet 100 on the roller structure is cut.

[0106] In other embodiments, the blade holder 1 is configured as a flat plate structure, and the cutting drive drives the cutting blade assembly 2 to move up and down. When it moves down to a certain position, it docks with the blade holder 1 to cut the electrode sheet 100 on the flat plate structure.

[0107] It should be noted that both the tool holder 1 and the cutting drive can adopt conventional structural forms, and their specific structures and working principles will not be described in detail in this embodiment.

[0108] The electrode cutting device provided in this application includes a blade holder 1, a cutting blade assembly 2, a mounting frame 3, a buffer structure 5, and a buffer adjustment member 6. The blade holder 1 is used to support the electrode 100 to be cut. The cutting blade assembly 2 can move with the mounting frame 3 to dock with the blade holder 1 for cutting. The mounting frame 3 includes a main body 31 and an assembly part 32 connected to each other. The cutting blade assembly 2 is slidably disposed on the assembly part 32 along a first direction. The assembly part 32 includes a guide rail 321, a first limiting member 322, and a second limiting member 323. Before the cutting blade assembly 2 contacts the electrode 100, the cutting blade assembly 2 abuts against the upper side of the first limiting member 322. After the cutting blade assembly 2 contacts the electrode 100, as the main body 31 continues to move downward, the cutting blade assembly 2 will disengage from the first limiting member 322 and move upward relative to the guide rail 321 until the electrode 100 is cut. During this process, when the cutting blade assembly 2 abuts against the second limiting member 323, the main body 31 will also stop moving downward to protect the buffer structure 5. The cutter assembly 2 includes a cutter 21 and a guide post 22. The buffer adjustment component 6 includes a connector 61 and an adjustment drive component 62. The connector 61 extends horizontally, and the guide post 22 slides vertically on the connector 61. The buffer structure 5 is sleeved on the guide post 22 and located between the connector 61 and the cutter 21. The connector 61 abuts against the upper end of the buffer structure 5, so that the connector 61 and the cutter holder 212 clamp and limit the buffer structure 5. By adjusting the drive component 62, the connector 61 is driven to move vertically, thereby adjusting the distance between the connector 61 and the first limiting member 322. Since the cutter 21 abuts against the first limiting member 322 in the initial state, the initial compression of the buffer structure 5 is adjusted.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrode cutting device, characterized in that, The electrode cutting device includes: The blade holder (1) is used to support the electrode sheet (100) to be cut. The cutting blade assembly (2) is capable of docking with the blade holder (1) in a first direction for cutting; The mounting bracket (3) includes a main body (31) and an assembly (32) connected to each other, and the cutter assembly (2) is slidably disposed on the assembly (32) along the first direction. A buffer structure (5) is elastically disposed between the cutter assembly (2) and the main body (31) along the first direction; A buffer adjustment member (6) is disposed between the buffer structure (5) and the main body (31); the buffer adjustment member (6) is configured to adjust the amount of compression of the buffer structure (5) before the cutter assembly (2) contacts the electrode (100).

2. The electrode cutting device according to claim 1, characterized in that, The cutting assembly (2) includes a cutting blade (21) and a guide post (22). The cutting edge of the cutting blade (21) is disposed facing the blade holder (1). The guide post (22) extends along the first direction and is connected to the side of the cutting blade (21) away from the blade holder (1).

3. The electrode cutting device according to claim 2, characterized in that, The buffer adjustment element (6) includes: A connector (61) is provided along the blade extension direction of the cutter (21), a guide post (22) is slidably provided on the connector (61) along the first direction, and a buffer structure (5) is sleeved on the guide post (22) and located between the connector (61) and the cutter (21). An adjustment drive (62) is provided with its fixed end on the main body (31) and its driving end connected to the connector (61) for driving the connector (61) to move along the first direction.

4. The electrode cutting device according to claim 3, characterized in that, Two adjustment drive members (62) are provided. The two adjustment drive members (62) are respectively provided at both ends of the connector (61) along the blade extension direction. They can independently drive the connector (61) to move along the first direction to adjust the angle between the extension direction of the connector (61) and the blade extension direction.

5. The electrode cutting device according to claim 4, characterized in that, Multiple guide posts (22) are provided, and the multiple guide posts (22) are spaced apart along the extension direction of the blade. Each guide post (22) is fitted with a buffer structure (5).

6. The electrode cutting device according to claim 3, characterized in that, The electrode cutting device further includes: A displacement sensor (7) is disposed on the surfaces of the connector (61) and / or the cutter (21) facing each other, for detecting the relative movement distance between the connector (61) and the cutter (21).

7. The electrode cutting apparatus according to any one of claims 1 to 6, characterized in that, The assembly part (32) includes: A guide rail (321) extends along the first direction and is disposed on at least one side of the cutter assembly (2) along the blade extension direction; the cutter assembly (2) is slidably disposed along the guide rail (321).

8. The electrode cutting device according to claim 7, characterized in that, The assembly part (32) also includes: The first limiting member (322) is disposed on the guide rail (321) and located on the side of the cutter assembly (2) facing the cutter holder (1), and can abut against the cutter assembly (2).

9. The electrode cutting device according to claim 8, characterized in that, The first limiting member (322) is adjustablely disposed on the guide rail (321) along the first direction.

10. The electrode cutting device according to claim 9, characterized in that, The guide rails (321) on both sides of the cutter assembly (2) are provided with the first limiting member (322), and each can adjust its position along the first direction.

11. The electrode cutting device according to claim 8, characterized in that, The assembly part (32) also includes: The second limiting member (323) is disposed at a distance from the first limiting member (322) on the guide rail (321) and is located on the side of the first limiting member (322) away from the blade holder (1); the second limiting member (323) is used to abut against the cutting blade assembly (2).

12. The electrode cutting device according to claim 11, characterized in that, The guide rail (321) is provided with a groove (3211) on the side facing the cutter (21), and the cutter assembly (2) can slide along the groove (3211); The first limiting member (322) and the second limiting member (323) are inserted into the groove (3211).

13. The electrode cutting device according to claim 12, characterized in that, The assembly part (32) also includes: A first mounting plate (324) and a second mounting plate (325) are disposed at intervals along the first direction on the main body (31); a first limiting member (322) is disposed on the first mounting plate (324) near the tool holder (1), and a second limiting member (323) is disposed on the second mounting plate (325) away from the tool holder (1); the guide rail (321) is connected to the first mounting plate (324) and / or the second mounting plate (325).

14. The electrode cutting device according to claim 13, characterized in that, The first mounting plate (324) is rotatably provided with an adjusting bolt (326) on the side facing the second mounting plate (325), and the adjusting bolt (326) extends along the first direction; One end of the first limiting member (322) extends into the slide groove (3211), and the other end is threadedly connected to the adjusting bolt (326). The adjusting bolt (326) can be turned to adjust the first limiting member (322) to slide along the first direction.

15. The electrode cutting apparatus according to any one of claims 1 to 6, characterized in that, The electrode cutting device further includes: A cutting drive unit, the drive end of which is connected to the main body (31), is used to drive the cutter assembly (2) to move relative to the cutter holder (1) to dock and cut with the cutter holder (1).

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