Cutting device and battery production line

Abstract

The utility model discloses a cutting device and a battery production line, the cutting device comprises a lower knife edge platform used for placing an object to be cut and a pressing block capable of getting close to or away from the lower knife edge platform along a first direction, and the first direction is parallel to the cutting direction of the cutting device; a first cutting edge and a second cutting edge are arranged on the pressing block, and a notch is formed between the first cutting edge and the second cutting edge; an isolation block is arranged at the position, corresponding to the notch, of the lower knife edge platform, and a first blanking area and a second blanking area are formed on the two sides of the isolation block. According to the utility model, the cut leftover materials such as copper foil and aluminum foil can be automatically classified and recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, and particularly relates to a cutting device and a battery production line. Background Art

[0002] At present, in the production process of lithium batteries, the foil tabs of each electrode sheet need to be welded to the Tab (tab). During the welding process of the foil tab and the Tab, in order to prevent the foil tab from being too long and the foil tab from protruding onto the sealant of the Tab, it is necessary to cut the foil tab to achieve the required tab length for the process.

[0003] In the prior art, after the foil tab is cut, the cut waste is easily adhered to the cutting knife and carried into the next main welding station, resulting in the risk of foreign object virtual welding of the product, and thus there is a safety risk for the battery cell; the cut waste copper foil and aluminum foil are easily mixed, which is not convenient for recycling, and a large amount of manual labor is required to separate the copper and aluminum foils, resulting in a waste of manpower. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cutting device and a battery production line to solve the deficiencies in the prior art, and it can automatically classify and recycle the cut waste copper foil and aluminum foil.

[0005] The utility model provides a cutting device, which includes a lower cutting edge platform for placing the object to be cut and a pressing block that can approach or move away from the lower cutting edge platform along a first direction, and the first direction is parallel to the cutting direction of the cutting device;

[0006] The pressing block is provided with a first cutting edge and a second cutting edge, and a notch is formed between the first cutting edge and the second cutting edge;

[0007] The lower cutting edge platform is provided with a partition block corresponding to the notch, and a first blanking area and a second blanking area are formed on both sides of the partition block.

[0008] The cutting device as described above, optionally: further includes a waste collection box, the waste collection box has a first collection cavity and a second collection cavity, the first collection cavity is used for collecting the cut material from the first blanking area, and the second collection cavity is used for collecting the cut material from the second blanking area.

[0009] The cutting device as described above, optionally: further includes a first enclosure and a second enclosure;

[0010] The first enclosure is arranged in the first blanking area and forms a first blanking channel with the lower cutting edge platform; the second enclosure is arranged in the second blanking area and forms a second blanking channel with the lower cutting edge platform.

[0011] The cutting device as described above, wherein optionally, it further includes a dust suction hood and a negative pressure pipe communicated with the dust suction hood;

[0012] The inlet of the dust suction hood faces the first blanking area and / or the second blanking area.

[0013] The cutting device as described above, wherein optionally, the number of the inlets of the dust suction hood and the negative pressure pipe are both two and they correspond to each other one by one;

[0014] The inlets of the dust suction hood respectively correspond to the first blanking area and the second blanking area.

[0015] The cutting device as described above, wherein optionally, it further includes a first driving member, and the first driving member is used to drive the dust suction hood to move along a second direction to approach or move away from the lower cutting edge platform, and the second direction is perpendicular to the cutting plane of the cutting device.

[0016] The cutting device as described above, wherein optionally, it further includes a cleaning assembly, and the cleaning assembly is slidably arranged on the lower cutting edge platform; the cleaning assembly is used to clean the first cutting edge, the second cutting edge and / or the lower cutting edge platform.

[0017] The cutting device as described above, wherein optionally, the cleaning assembly includes a first cleaning frame and a second cleaning frame;

[0018] Brush members are fixedly arranged on both the first cleaning frame and the second cleaning frame;

[0019] Both the first cleaning frame and the second cleaning frame are slidably connected with the lower cutting edge platform in a matching manner;

[0020] The first cleaning frame can reciprocally move along a third direction within the first blanking area;

[0021] The second cleaning frame can reciprocally move along a third direction within the second blanking area;

[0022] The third direction is parallel to the cutting plane of the cutting device and perpendicular to the first direction.

[0023] The cutting device as described above, wherein optionally, the brush member includes a first brush for cleaning the first cutting edge or the second cutting edge and a second brush for cleaning the lower cutting edge platform.

[0024] The present utility model further provides a battery production line, which includes a placement tray and the cutting device described in any one of the above.

[0025] The placement tray has at least a loading position and a shearing position, and the placement tray can move between the loading position and the shearing position;

[0026] When the placement tray is at the shearing position, one tab of the battery on the placement tray is located between the first blade and the lower cutting edge platform, and the other tab is located between the second blade and the lower cutting edge platform.

[0027] Compared with the prior art, in the present utility model, the first blade and the second blade are arranged on the pressing block, and the first blade and the second blade cooperate with the lower cutting edge platform respectively to form a first blanking area and a second blanking area. Since the first blanking area and the second blanking area are isolated by the isolation block, the corner copper foil and aluminum foil fall from the first blanking area and the second blanking area respectively, automatically separating the copper foil and the aluminum foil, realizing the automatic separation of the copper foil and the aluminum foil, facilitating separate recycling, and avoiding manual sorting. Description of the Drawings

[0028] Figure 1 is the overall structural schematic diagram of the present utility model;

[0029] Figure 2 is the installation schematic diagram of the lower cutting edge platform of the cutting device proposed by the present utility model;

[0030] Figure 3 is Figure 1 the side view of;

[0031] Figure 4 is the installation structure schematic diagram of the pressing block and the lower cutting edge platform of the cutting device proposed by the present utility model;

[0032] Figure 5 is the position schematic diagram of the pressing block, the lower cutting edge platform and the waste collection box of the cutting device proposed by the present utility model;

[0033] Figure 6 is the position schematic diagram of the waste collection box and the lower cutting edge platform of the cutting device proposed by the present utility model.

[0034] Figure 7 is the installation structure schematic diagram of the dust suction hood of the cutting device proposed by the present utility model;

[0035] Figure 8 is the sectional view of the dust suction hood of the cutting device proposed by the present utility model;

[0036] Figure 9 is the structure schematic diagram of the dust suction hood of the cutting device proposed by the present utility model;

[0037] Figure 10 is the partial schematic diagram of the battery production line proposed by the present utility model.

[0038] Description of the Reference Numerals:

[0039] 1 - Lower knife edge platform, 2 - Press block, 3 - Scrap collection box, 4 - Dust suction hood, 5 - First driving part, 6 - Cleaning component, 7 - Placing tray;

[0040] 11 - Isolation block, 12 - First blanking area, 13 - Second blanking area, 14 - Slide groove;

[0041] 121 - First enclosing plate, 122 - First blanking channel;

[0042] 131 - Second enclosing plate, 132 - Second blanking channel;

[0043] 21 - First cutting edge, 22 - Second cutting edge, 23 - Notch;

[0044] 31 - First collection cavity, 32 - Second collection cavity;

[0045] 41 - Negative pressure pipe;

[0046] 61 - First cleaning rack, 62 - Second cleaning rack, 63 - Brush part;

[0047] 611 - First slider;

[0048] 621 - Second slider;

[0049] 631 - First brush, 632 - Second brush. Detailed implementation mode

[0050] The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be construed as a limitation to the present invention.

[0051] In the prior art, in addition to the defects described in the background art, the prior art also has the following defects. The structure in the prior art usually includes a cutting mechanism, a dust suction mechanism, a waste collection mechanism, etc. The cutting mechanism usually uses one knife to cut copper foil tabs and aluminum foil tabs at the same time. There are differences in the nature of the two foil tabs. Copper foil is softer than aluminum foil. Using one knife to cut is likely to cause problems such as the inability to cut through and different cutting lives. The dust suction mechanism currently uses two dust suction devices for the upper and lower cutting knives. First, the upper cutting knife is dusted, and then the lower cutting knife is dusted, resulting in low efficiency and poor dust removal effect. The waste collection mechanism uses one brush to clean the cutting knife. By using one brush to clean, it is easy to mix the scraps of different materials together.

[0052] To solve at least one of the problems in the background art and those mentioned above, the present disclosure proposes a cutting device.

[0053] Please refer to the attached Figures 1-10, the cutting device proposed by the present disclosure includes a lower knife-edge platform 1 for placing the object to be cut and a pressing block 2 that can approach or move away from the lower knife-edge platform 1 in a first direction; the first direction is parallel to the cutting direction of the cutting device. In a specific implementation, the lower knife-edge platform 1 and the pressing block 2 can be installed on the same frame. In order to achieve the directional movement of the pressing block 2 approaching or moving away from the lower knife-edge platform 1, the pressing block 2 should be installed on the frame through a driving mechanism, and the driving mechanism is used to drive the pressing block 2 to reciprocate. In a specific implementation, the driving mechanism can be a cylinder, a hydraulic cylinder, an electric cylinder, etc. The cutting device proposed by the present disclosure can be used for, but not limited to, cutting battery tabs, and can also be used for cutting the structures of two materials simultaneously.

[0054] Please refer to Figures 1 to 5 , the pressing block 2 is provided with a first cutting edge 21 and a second cutting edge 22, and a notch 23 is formed between the first cutting edge 21 and the second cutting edge 22. Due to the reciprocating movement of the pressing block 2, the first cutting edge 21 can cooperate with the lower knife-edge platform 1 to complete the shearing of one tab; the second cutting edge 22 can also cooperate with the lower knife-edge platform 1 to complete the shearing of another tab. That is, the two tabs are sheared by the first cutting edge 21 and the second cutting edge 22 respectively. In a specific implementation, the first cutting edge 21 and the second cutting edge 22 can be integrally formed with the pressing block 2, or can be fixed to the pressing block 2 by means of welding, bolt connection, etc. For the integrally formed structure, during manufacturing, it is convenient to differentially manufacture the first cutting edge 21 and the second cutting edge 22 according to needs to ensure that they can adapt to the tabs of corresponding materials and make the service lives of the first cutting edge 21 and the second cutting edge 22 basically the same. When the first cutting edge 21 and the second cutting edge 22 are connected by bolt connection, the first cutting edge 21 and the second cutting edge 22 with the same dimensions, materials, processes, etc. can be used. Due to the different materials of the objects to be cut, when any one of the first cutting edge 21 and the second cutting edge 22 reaches the service life requirement, it can be replaced separately.

[0055] The lower knife-edge platform 1 is provided with a partition block 11 corresponding to the notch 23, and a first blanking area 12 and a second blanking area 13 are formed on both sides of the partition block 11. During use, the first cutting edge 21 and the second cutting edge 22 respectively cut tabs of different materials. After the corner materials of the tabs of different materials are cut off, they fall from the corresponding first blanking area 12 or second blanking area 13. Therefore, it is convenient to automatically classify and collect the corner materials of the tabs according to different materials, avoiding wasting manpower for sorting.

[0056] Please refer to Figures 1 to 6, in practical applications, in order to collect the blanking materials in the first blanking area 12 and the second blanking area 13, in specific implementation, a waste material collection box 3 is further included. The waste material collection box 3 has a first collection cavity 31 and a second collection cavity 32. The first collection cavity 31 is used to collect the cut materials from the first blanking area 12, and the second collection cavity 32 is used to collect the cut materials from the second blanking area 13. In practical applications, the waste material collection box 3 can be a box body with an opening at the upper end, and the waste material collection box 3 is located below the lower cutting edge platform 1. The space inside the box body can be divided into the first collection cavity 31 and the second collection cavity 32 by arranging a partition plate inside the box body. The opening of the first collection cavity 31 faces upward and is located below the first blanking area 12, and the opening of the second collection cavity 32 faces upward and is located below the second blanking area 13. The scraps falling from the first blanking area 12 enter the first collection cavity 31 under the action of gravity, and the scraps falling from the second blanking area 13 enter the second collection cavity 32 under the action of gravity. In some implementation manners, the waste material collection box 3 can also be set to two, and the two waste material collection boxes 3 respectively collect the scraps falling from the first blanking area 12 and the scraps falling from the second blanking area 13. Through the above method, the classification collection of scraps of different materials can be automatically realized.

[0057] Please refer to Figures 1 to 6, in specific implementation, since the cut-off scraps fall into the corresponding first collection cavity 31 or second collection cavity 32 under the action of gravity, and after shearing, the scraps usually have a certain velocity in the horizontal direction. As the scraps fall, some of them may scatter outside the waste collection box 3. For this reason, in this implementation, it also includes a first enclosing plate 121 and a second enclosing plate 131. Specifically, the first enclosing plate 121 is arranged in the first blanking area 12 and forms a first blanking channel 122 with the lower knife-edge platform 1. In specific implementation, the cross-section of the first blanking channel 122 can be D-shaped, or a rectangular frame or other shapes. In the present utility model, no limitation is made thereto. In some implementations, the upper end of the first blanking channel 122 can be a flared structure, so that most of the scraps can enter the corresponding first collection cavity 31 through the first blanking channel 122. It should be noted that the first blanking channel 122 can be a vertical channel along the first direction, or an inclined channel, as long as it can ensure that the scraps can smoothly fall or slide in the first blanking channel 122. Of course, it is better that the first blanking channel 122 is vertically arranged. Therefore, when the first blanking channel 122 is vertically arranged, it is beneficial to ensure that the scraps smoothly enter the first collection cavity 31. In specific implementation, the first blanking channel 122 can be directly formed by the first enclosing plate 121 and the lower knife-edge platform 1, or can be formed by the first enclosing plate 121, the isolation block 11 and the lower knife-edge platform 1 together. Among them, in a preferred solution, the cross-section of the first blanking channel 122 is rectangular, and the isolation block 11 forms one side of the first blanking channel 122.

[0058] The second enclosing plate 131 is arranged in the second blanking area 13 and forms a second blanking channel 132 with the lower knife-edge platform 1. In specific implementation, the cross-section of the second blanking channel 132 can be D-shaped, or a rectangular frame or other shapes. In the present utility model, no limitation is made thereto. In some implementations, the upper end of the second blanking channel 132 can be a flared structure, so that most of the scraps can enter the corresponding second collection cavity 32 through the second blanking channel 132. It should be noted that the second blanking channel 132 can be a vertical channel along the first direction, or an inclined channel, as long as it can ensure that the scraps can smoothly fall or slide in the second blanking channel 132. Of course, it is better that the second blanking channel 132 is vertically arranged. Therefore, when the second blanking channel 132 is vertically arranged, it is beneficial to ensure that the scraps smoothly enter the second collection cavity 32. In specific implementation, the second blanking channel 132 can be directly formed by the second enclosing plate 131 and the lower knife-edge platform 1, or can be formed by the second enclosing plate 131, the isolation block 11 and the lower knife-edge platform 1 together. Among them, in a preferred solution, the cross-section of the second blanking channel 132 is rectangular, and the isolation block 11 forms one side of the second blanking channel 132.

[0059] In some implementations, the isolation block 11 protrudes upward from the upper surface of the lower cutting edge platform 1 in the first direction. The top of the isolation block 11 is adapted to the notch 23. Through the cooperation of the isolation block 11 and the notch 23, limiting is achieved, that is, during shearing, when the connection between the notch 23 and the top of the isolation block 11 is reached, the pressing block 2 stops moving downward and starts moving upward to complete one shearing operation.

[0060] Please refer to Figures 7 to 9 , in practical applications, when shearing the tab, inevitably, fine metal debris will be generated. The metal debris is likely to scatter onto the already cut electrode, adhere to the first cutting edge 21, the second cutting edge 22 or the lower cutting edge platform, and is also likely to be mixed into different recycled materials. To solve these problems, the embodiment of the present utility model further includes a dust suction hood 4 and a negative pressure pipe 41 communicated with the dust suction hood 4. Specifically, the negative pressure pipe 41 is used to communicate with an external negative pressure source to adsorb and collect the metal debris through negative pressure. In specific implementation, the inlet of the dust suction hood 4 faces the first blanking area 12 and / or the second blanking area 13. In specific implementation, the dust suction hood 4 and the sheared battery are located on opposite sides of the lower cutting edge platform 1. By providing the dust suction hood 4, it is possible to avoid the splashing of metal debris during the shearing process.

[0061] In specific implementation, if there is only one inlet of the dust suction hood 4, metal debris of different materials will be mixed together. Therefore, in order to collect different metal debris separately, in this embodiment, the number of inlets of the dust suction hood 4 and the negative pressure pipe 41 are both two and correspond one by one; the inlets of the dust suction hood 4 correspond to the first blanking area 12 and the second blanking area 13 respectively. In this way, each inlet corresponds to a negative pressure pipe 41, and the two inlets are not connected to each other, so that the metal debris can be recycled separately to prevent the mixing of metal debris of different materials and facilitate recycling. In some implementations, the dust suction hood 4 can also be provided as two, and the two dust suction hoods 4 correspond to the first blanking area 12 and the second blanking area 13 respectively to achieve the separate collection and recycling of different materials.

[0062] In some implementations, during specific implementation, some metal chips will adhere to the first blade 21, the second blade 22, and the lower knife-edge platform 1 after shearing. To completely remove this part of the metal chips, other components are usually provided, such as the cleaning assembly 6 disclosed in the following text. To be able to avoid the cleaning assembly 6, in this embodiment, a first driving member 5 is further included. The first driving member 5 is used to drive the dust suction hood 4 to move in a second direction to approach or move away from the lower knife-edge platform 1, and the second direction is perpendicular to the cutting plane of the cutting device. During specific implementation, the first driving member 5 is a cylinder, a hydraulic cylinder, or an electric cylinder. Of course, it can also be other structures that can drive the dust suction hood 4 to reciprocate. During the shearing process, the dust suction hood 4 is moved to a position close to the first blanking area 12 and the second blanking area 13 to collect scattered metal chips. After the shearing is completed, when it is necessary to clean the first blade 21, the second blade 22, and the lower knife-edge platform 1, the dust suction hood 4 is moved away from the lower knife-edge platform 1 so that the cleaning assembly 6 can perform a cleaning operation between the lower knife-edge platform 1 and the dust suction hood 4.

[0063] Please refer to Figure 6 , to implement the foregoing cleaning process, in the specific implementation manner of this embodiment, a cleaning assembly 6 is further included. The cleaning assembly 6 is slidably disposed on the lower knife-edge platform 1. The cleaning assembly 6 is used to clean the first blade 21, the second blade 22, and / or the lower knife-edge platform 1. By providing the cleaning assembly 6, it is possible to facilitate the thorough cleaning of the cutting waste adhering to the first blade 21, the second blade 22, and the lower knife-edge platform 1. When cleaning the first blade 21 and the second blade 22, if the same brush is used for cleaning, the metal chips of different materials cleaned will be mixed together.

[0064] In order not to mix the metal chips of different materials cleaned by the cleaning assembly 6, in the specific implementation manner of the present utility model, the cleaning assembly 6 includes a first cleaning frame 61 and a second cleaning frame 62. During implementation, the first cleaning frame 61 and the second cleaning frame 62 have the same structure. Brush members 63 are fixedly provided on both the first cleaning frame 61 and the second cleaning frame 62. Both the first cleaning frame 61 and the second cleaning frame 62 are slidably connected to the lower knife-edge platform 1 in a mating manner. During specific implementation, a chute 14 can be provided at the bottom or the lower part of the side of the lower knife-edge platform 1. A first slider 611 that mates with the chute 14 is provided on the first cleaning frame 61, and a second slider 621 that mates with the chute 14 is provided on the second cleaning frame 62. The chute 14 is preferably a T-shaped groove or a dovetail groove. Correspondingly, it can also be that chutes are provided on the first cleaning frame 61 and the second cleaning frame 62, and slide rails are provided on the lower knife-edge platform 1.

[0065] The first cleaning frame 61 can reciprocate in the first blanking area 12 along the third direction; the second cleaning frame 62 can reciprocate in the second blanking area 13 along the third direction. The third direction is parallel to the cutting plane of the cutting device and perpendicular to the first direction. That is, the length direction of the chute 14 should be set along the third direction. The first direction, the second direction, and the third direction are perpendicular to each other pairwise. Among them, it is preferably that the vertical direction is the first direction. The first cleaning frame 61 and the second cleaning frame 62 can move in the same direction or in opposite directions. When the first cleaning frame 61 and the second cleaning frame 62 reciprocate synchronously at the same speed and in the same direction, it can ensure that there is a certain distance between the two cleaning positions in the horizontal direction to prevent the metal chips swept down from being mixed together.

[0066] In specific implementation, the main positions that need to be cleaned are the first cutting edge 21, the second cutting edge 22, and the lower cutting edge platform 1. Therefore, the specific implementation manner of the present invention further improves the brush member 63. Specifically, the brush member 63 includes a first brush 631 for cleaning the first cutting edge 21 or the second cutting edge 22 and a second brush 632 for cleaning the lower cutting edge platform 1. In specific implementation, the first brush 631 on the first cleaning frame 61 is used to clean the metal chips on the first cutting edge 21, and the second brush 632 on the first cleaning frame 61 is used to clean the metal chips on the lower cutting edge platform 1 corresponding to the first blanking area 12. Specifically, the second brush 632 is used to clean the metal chips on the top of the lower cutting edge platform 1. The first brush 631 on the second cleaning frame 62 is used to clean the metal chips on the second cutting edge 22, and the second brush 632 on the second cleaning frame 62 is used to clean the metal chips on the lower cutting edge platform 1 corresponding to the second blanking area 13.

[0067] In specific implementation, the driving of the first cleaning frame 61 and the second cleaning frame 62 can be realized by a second driving member. The second driving member can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0068] Please refer to Figure 10 In some implementation manners, in order to facilitate the placement of the battery to be cut, a placement tray 7 is further included. Each placement tray 7 has at least a loading position and a cutting position, and the placement tray 7 can be switched between the loading position and the cutting position. In specific implementation, it can be realized by a plurality of circumferentially arranged placement trays 7. Specifically, it can be arranged on a rotating frame. When the placement tray is at the cutting position, one pole ear of the battery on the placement tray is located between the first cutting edge 21 and the lower cutting edge platform 1, and the other pole ear is located between the second cutting edge 22 and the lower cutting edge platform 1 for the cutting action. In some implementation manners, the plurality of placement trays 7 can also move horizontally.

[0069] Please refer to Figures 1 to 10, in specific implementation, when the placement tray with the battery to be sheared moves to the shearing position, the two tab ears of the battery are respectively located between the first blade 21 and the lower knife-edge platform 1, and between the second blade 22 and the lower knife-edge platform 1. Drive the dust suction hood 4 to approach the lower knife-edge platform 1, specifically align the inlets of the dust suction hood 4 with and approach the first blanking area 12 and the second blanking area 13 respectively, and connect to an external negative pressure source. Drive the pressing block 2 to press down, the first blade 21 cooperates with the lower knife-edge platform 1 to cut the corresponding tab ear, and the corresponding scrap material falls into the first collection cavity 31 through the first blanking channel 122; the second blade 22 cooperates with the lower knife-edge platform 1 to cut the corresponding tab ear, and the corresponding scrap material falls into the second collection cavity 32 through the second blanking channel 132. During the shearing process, part of the metal debris generated is sucked into the inlet of the dust suction hood 4 by negative pressure and is recycled separately through different channels.

[0070] After shearing is completed, the pressing block 2 drives the first blade 21 and the second blade 22 to move upward to a suitable position. Drive the dust suction hood 4 away from the lower knife-edge platform 1 to form a suitable cleaning space for the cleaning assembly 6 to clean. During this process, the external negative pressure source can be disconnected or the negative pressure source can remain connected.

[0071] Drive the first cleaning frame 61 and the second cleaning frame 62 to move reciprocally. Specifically, the first cleaning frame 61 moves reciprocally within the first blanking area 12, and the second cleaning frame 62 moves reciprocally within the second blanking area 13. The metal debris swept away is sucked away by the dust suction hood 4 or falls into the corresponding cavity in the waste collection box 3.

[0072] Through the solution provided by the present utility model, the dust removal efficiency can be improved, the automatic classification and recycling of waste materials can be realized, the waste materials can be prevented from being carried to the next main welding station, and the risk of foreign object false soldering can be avoided.

[0073] In the present utility model, regarding the first direction, the second direction, and the third direction, reference can be made to Figure 1 and Figure 2 , where the direction of the z-axis is the first direction, the direction of the x-axis is the second direction, and the direction of the y-axis is the third direction.

[0074] The above has described in detail the structure, features, and function effects of the present utility model based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present utility model, but the present utility model is not limited to the scope defined by the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified to equivalent changes, still within the spirit covered by the specification and the drawings, shall be within the protection scope of the present utility model.

Claims

1. A cutting device, characterized in that: It includes a lower knife-edge platform (1) for placing the object to be cut and a pressing block (2) that can approach or move away from the lower knife-edge platform (1) in a first direction, and the first direction is parallel to the cutting direction of the cutting device; The pressing block (2) is provided with a first cutting edge (21) and a second cutting edge (22), and a notch (23) is formed between the first cutting edge (21) and the second cutting edge (22); The lower knife-edge platform (1) is provided with a separating block (11) corresponding to the notch (23), and a first blanking area (12) and a second blanking area (13) are formed on both sides of the separating block (11).

2. The cutting device according to claim 1, wherein: It further includes a waste collection box (3), the waste collection box (3) has a first collection cavity (31) and a second collection cavity (32), the first collection cavity (31) is used for collecting the cut materials from the first blanking area (12), and the second collection cavity (32) is used for collecting the cut materials from the second blanking area (13).

3. The cutting device according to claim 2, characterized in that: It further includes a first surrounding plate (121) and a second surrounding plate (131); The first surrounding plate (121) is arranged in the first blanking area (12) and forms a first blanking channel (122) with the lower knife-edge platform (1); the second surrounding plate (131) is arranged in the second blanking area (13) and forms a second blanking channel (132) with the lower knife-edge platform (1).

4. The cutting device according to any one of claims 1-3, characterized in that: It further includes a dust suction hood (4) and a negative pressure pipe (41) communicated with the dust suction hood (4); The inlet of the dust suction hood (4) faces the first blanking area (12) and / or the second blanking area (13).

5. The cutting device according to claim 4, characterized in that: The number of the inlets of the dust suction hood (4) and the negative pressure pipe (41) is two and they correspond one by one; The inlets of the dust suction hood (4) respectively correspond to the first blanking area (12) and the second blanking area (13).

6. The cutting device according to claim 4, wherein: It further includes a first driving member (5), and the first driving member (5) is used for driving the dust suction hood (4) to move in a second direction to approach or move away from the lower knife-edge platform (1), and the second direction is perpendicular to the cutting plane of the cutting device.

7. The cutting device according to any one of claims 1 to 3, characterized in that: It further includes a cleaning assembly (6), and the cleaning assembly (6) is slidably arranged on the lower knife-edge platform (1); the cleaning assembly (6) is used for cleaning the first cutting edge (21), the second cutting edge (22) and / or the lower knife-edge platform (1).

8. The cutting device according to claim 7, wherein: The cleaning assembly (6) includes a first cleaning frame (61) and a second cleaning frame (62); Brush members (63) are fixedly arranged on both the first cleaning frame (61) and the second cleaning frame (62); Both the first cleaning frame (61) and the second cleaning frame (62) are slidably connected with the lower knife-edge platform (1) in a matching manner; The first cleaning frame (61) can reciprocate in the first blanking area (12) in a third direction; The second cleaning frame (62) can reciprocate in the second blanking area (13) in a third direction; The third direction is parallel to the cutting plane of the cutting device and perpendicular to the first direction.

9. The cutting device according to claim 8, characterized in that: The brush member (63) includes a first brush (631) for cleaning the first cutting edge (21) or the second cutting edge (22), and a second brush (632) for cleaning the lower knife-edge platform (1).

10. A battery production line, characterized in that: It includes a placement tray (7) and the cutting device according to any one of claims 1-9; The placement tray (7) has at least a loading position and a shearing position, and the placement tray (7) can move between the loading position and the shearing position; When the placement tray (7) is located at the shearing position, one tab of the battery on the placement tray (7) is located between the first cutting edge (21) and the lower knife-edge platform (1), and the other tab is located between the second cutting edge (22) and the lower knife-edge platform (1).

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