Pole piece cutting device and battery production line
By incorporating an adsorption device and a moving mechanism into the electrode cutting equipment, the problem of poor cutting caused by vibration during electrode transport is solved, thereby improving the stability and efficiency of electrode cutting and ensuring cutting quality and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-02
AI Technical Summary
Vibration during electrode transport can lead to poor cutting and affect the cutting quality of the electrode.
An electrode cutting device was designed, including a roller assembly, a cutting device, and an adsorption device. The device stabilizes the electrode transport by adsorbing the coating area of the electrode, reduces vibration by using negative pressure pipelines and adsorption holes, and improves cutting accuracy and efficiency by combining a moving mechanism and a dust removal fixture.
It effectively reduces electrode vibration, improves the stability and quality of electrode cutting, enhances cutting accuracy and efficiency, and protects the cutting surface from high-temperature oxidation and slag blockage.
Smart Images
Figure CN224309851U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery manufacturing technology, specifically to an electrode cutting device and a battery production line. Background Technology
[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.
[0003] With the rapid development of new energy vehicles, batteries are increasingly coming into the public eye.
[0004] In the battery manufacturing process, the tab area of the electrode sheet usually needs to be cut to form the tab. However, during the transport of the electrode sheet, it often vibrates, leading to poor cutting and affecting the cutting quality of the electrode sheet. Utility Model Content
[0005] The purpose of this application is to provide an electrode cutting device and a battery production line to reduce vibration during electrode cutting and thus improve the cutting quality of the electrodes. This purpose is achieved through the following technical solution:
[0006] In a first aspect, this application provides an electrode cutting device, comprising: a roller assembly including a first guide roller and a second guide roller, the first guide roller and the second guide roller being spaced apart, the space between the first guide roller and the second guide roller being used to place an electrode and to provide a driving force for the electrode to travel; a cutting device for cutting the tab area of the electrode; and a first adsorption device having a first cavity, the first cavity being connected to at least one first negative pressure pipeline, and the first adsorption device including a first adsorption element having a plurality of adsorption holes, the first adsorption element being used to at least conform to the coating area of the electrode and adsorb the coating area of the electrode.
[0007] According to the electrode cutting equipment provided in this application, by providing a first adsorption device for adsorbing at least the coating area of the electrode, the effect of electrode shaking can be reduced during the transmission of the electrode due to the adsorption effect of the first adsorption device, thereby improving the stability of the cutting device when cutting the tab area of the electrode, and improving the cutting quality and cutting efficiency of the electrode.
[0008] In addition, the electrode cutting equipment provided in this application may also have the following additional technical features:
[0009] In some embodiments of this application, the first adsorption device further includes a first frame, the first frame including a first base plate and a first side plate surrounding the periphery of the first base plate, the first side plate and the base plate defining a first cavity, the cavity having a first opening, the first adsorption element being sealed in the first opening; wherein, the first frame is connected to at least one first negative pressure pipeline.
[0010] In the above technical solution, by attaching the first adsorption element to the coating area of the electrode, the electrode can be adsorbed onto the first adsorption element when the first negative pressure pipeline provides negative pressure to draw in air during the transmission process. This reduces the risk of vibration during the transmission of the electrode, thereby improving the accuracy of the cutting device when cutting the electrode, and improving the cutting quality and efficiency of the electrode.
[0011] In some embodiments of this application, the first frame and the first adsorption member are integrally formed.
[0012] In the above technical solution, the first frame and the first adsorption element are configured as an integrally formed structure, which can improve the sealing between the first adsorption element and the first frame and help reduce the loss of gas when the negative pressure is increased in the first cavity, thereby improving the stability of the adsorption of the electrode.
[0013] In some embodiments of this application, the first cavity is provided with a flow channel, which extends from one side of the first frame to the other side by bending, and each end of the flow channel is connected to a first negative pressure pipeline; wherein, the first adsorption member is provided with a plurality of adsorption holes in the area corresponding to the flow channel.
[0014] In the above technical solution, by setting a bent and extended flow channel in the first cavity, and connecting a first negative pressure pipeline to each end of the flow channel, the two first negative pressure pipelines simultaneously provide negative pressure to the flow channel, thereby improving the stability of the gas pressure in the flow channel. Furthermore, by setting multiple adsorption holes on the first adsorption element corresponding to the flow channel area, the loss of negative pressure gas can be reduced, and the adsorption capacity of the first adsorption device can be further improved.
[0015] In some embodiments of this application, the cutting device includes a moving mechanism and a first cutting member and a second cutting member disposed on the moving mechanism. The first cutting member and the second cutting member are respectively used to cut the tab areas on both sides of the electrode sheet in the width direction. The moving mechanism is used to drive the first cutting member and the second cutting member to move.
[0016] In the above technical solution, the moving mechanism can drive the first cutting component and the second cutting component to move along a preset direction, so that the cutting heads of the first cutting component and the second cutting component are respectively aligned with the tab areas on both sides of the width direction of the electrode sheet, thereby achieving the precision of cutting the tab area.
[0017] In some embodiments of this application, the moving mechanism includes a first slide rail, a second slide rail, and a third slide rail. The first slide rail extends along a first direction, and the second slide rail extends along a second direction intersecting the first direction, and both are slidably connected to the first slide rail. The first cutting element is slidably connected to the second slide rail, and the second cutting element is slidably connected to the third slide rail. The first direction is the axial direction of the first roller.
[0018] In the above technical solution, when the second slide rail and the third slide rail slide relative to the first slide rail in the first direction, they can drive the first cutting component and the second cutting component to move in the first direction, thereby adjusting the position of the first cutting component and the second cutting component so that the cutting heads of the first cutting component and the second cutting component are respectively aligned with the tab areas on both sides of the width direction of the electrode sheet. The first cutting component can slide relative to the second slide rail in the second direction, and the second cutting component can slide relative to the third direction in the second direction, thereby adjusting the distance between them and the electrode sheet to achieve focusing of the first cutting component and the second cutting component, which can help improve the accuracy of cutting the electrode sheet.
[0019] In some embodiments of this application, the electrode cutting device further includes two dust removal fixtures. The two dust removal fixtures are used to be disposed on the two tab areas of the electrode and located on the side of the electrode away from the first adsorption device. Each dust removal fixture includes a fixture body, and an air blowing channel is defined in the fixture body. One end of the air blowing channel is configured as an air blowing port, which is used to blow air into the tab area of the electrode. The other end of the air blowing channel is connected to a positive pressure pipeline, which is used to supply air into the air blowing channel.
[0020] In the above technical solution, when the cutting device cuts the tab area of the electrode sheet, the positive pressure pipeline blows gas into the air blowing channel. The gas is then blown through the air blowing port to the tab area of the electrode sheet. On the one hand, the gas acts as a protective gas, reducing the risk of material oxidation in the tab area of the electrode sheet due to high temperature during the cutting process. It also cools the cutting area, reducing the heat-affected zone and helping to protect the cutting quality and precision of the cutting surface. On the other hand, the gas can promptly blow away the slag generated during the cutting process, keeping the cutting head of the cutting device clean and reducing the risk of slag clogging the cutting head and affecting welding quality.
[0021] In some embodiments of this application, the fixture body is further provided with at least one suction channel, each suction channel is spaced apart from the blowing channel, one end of the suction channel is connected to a suction element, the suction element is provided with a suction port adjacent to the blowing port, and the other end of the suction channel is connected to a second negative pressure pipeline, the second negative pressure pipeline is used to provide negative pressure to the suction channel.
[0022] In the above technical solution, when the cutting device cuts the tab area of the electrode sheet, the second negative pressure pipeline provides negative pressure to the suction channel, so that the suction component can promptly remove the welding slag and gas generated during cutting through the suction port, thereby helping to further protect the cutting interface and the cleanliness of the cutting head, and improving the quality of cutting the tab area of the electrode sheet.
[0023] In some embodiments of this application, the number of the air intake channels is two, and the two air intake channels are spaced apart on both sides of the air blowing channel, with each air intake channel connected to one air intake component.
[0024] In the above technical solution, by setting two suction channels on both sides of the blowing channel and connecting each suction channel to a suction component, the two suction components can simultaneously suck up the welding slag and gas generated during cutting when blowing air into the tab area of the electrode sheet, thereby improving the cleaning efficiency of the cutting area of the tab area of the electrode sheet.
[0025] In some embodiments of this application, the suction component includes a suction pipe, the suction ports of the two suction components are arranged opposite to each other, and the air inlet direction of each suction port intersects with the air outlet direction of the blowing port.
[0026] In the above technical solution, by setting the suction component in the form of a suction pipe, when air is blown away by the air blowing port to remove the welding slag generated during cutting, the air blowing port can promptly suck away the welding slag and gas generated during cutting from both sides of the air blowing port.
[0027] In some embodiments of this application, the electrode cutting device further includes a second adsorption device, which is used to be disposed in the tab region of the electrode and to adsorb the tab region of the electrode.
[0028] In the above technical solution, by setting a second adsorption device for the tab area of the electrode sheet, the second adsorption device can adsorb the tab area of the electrode sheet, thereby reducing the risk of the tab area of the electrode sheet shaking during the transmission process.
[0029] In some embodiments of this application, the number of the second adsorption devices is four. The four second adsorption devices are divided into two groups and disposed in the two tab areas of the electrode sheet. Each group is provided with two second adsorption devices. The two second adsorption devices in each group are respectively located on opposite sides of the dust removal fixture and are used to adsorb the tab areas of the electrode sheet.
[0030] In the above technical solution, by setting a second adsorption device on each side of the opposite side of each dust removal fixture, that is, by setting a second adsorption device on each side of the cutting area of the tab area, the tab areas on the opposite sides of the cutting area of the tab area are adsorbed and fixed, thereby reducing the risk of the tab area shaking, and further improving the cutting quality of the tab area of the electrode sheet by the cutting device.
[0031] In some embodiments of this application, the second adsorption device includes a second frame and a second adsorption element. The second frame includes a second base plate and a second side plate surrounding the periphery of the second base plate. A second cavity is defined between the second side plate and the second base plate. The second cavity has a second opening. The second adsorption element is sealed in the second opening and fixedly connected to the second frame. The second frame is connected to at least one third negative pressure pipeline.
[0032] In the above technical solution, by attaching the second adsorption element to the tab area of the electrode, when the third negative pressure pipeline provides negative pressure to draw in air during the transmission of the electrode, the tab area of the electrode can be adsorbed onto the second adsorption element. This reduces the risk of the tab area of the electrode vibrating during transmission, thereby improving the accuracy of the cutting device when cutting the tab area of the electrode, and improving the cutting quality and efficiency of the tab area of the electrode.
[0033] In some embodiments of this application, the electrode cutting equipment further includes a receiving device, which is located on one side of the roller assembly along the direction of gravity and is used to correspond to the tab area of the electrode.
[0034] In the above technical solution, after the tab area of the electrode sheet is cut off, the waste generated can fall into the collection device under the action of gravity, which helps to reduce the occurrence of waste falling and causing pollution to the cutting environment.
[0035] Secondly, this application provides a battery production line, including electrode cutting equipment as described in any one of the embodiments of the first aspect. Attached Figure Description
[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. 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:
[0037] Figure 1 A schematic diagram of the structure of an electrode cutting device provided in some embodiments of this application;
[0038] Figure 2 This is a schematic diagram of the structure of a first adsorption device provided in some embodiments of this application;
[0039] Figure 3 This is a schematic diagram of the structure of a dust removal fixture provided in some embodiments of this application;
[0040] Figure 4 This is a schematic diagram of the structure of the second adsorption device provided in some embodiments of this application;
[0041] Figure 5 This is a partial structural schematic diagram from another perspective of the electrode cutting apparatus provided in some embodiments of this application.
[0042] The attached figures are labeled as follows:
[0043] 100. Electrode cutting equipment; 200. Electrode; 201. Coating area; 202. Tab area;
[0044] 10. Roller assembly; 11. First guide roller; 12. Second guide roller; 21. Moving mechanism; 211. First slide rail; 212. Second slide rail; 213. Third slide rail; 22. First cutting component; 23. Second cutting component; 30. First adsorption device; 31. First frame; 311. First cavity; 32. First adsorption component; 321. Adsorption hole; 33. First negative pressure pipeline; 34. Air pressure regulating valve; 40. Dust removal fixture; 41. Fixture body; 411. Air blowing port; 42. Air suction component; 421. Air suction port; 43. Positive pressure pipeline; 44. Second negative pressure pipeline; 50. Second adsorption device; 51. Second frame; 52. Second adsorption component; 53. Third negative pressure pipeline; 60. Material receiving device; 71. First fixing plate; 72. Second fixing plate; 73. Third fixing plate; 74. Locking component. Detailed Implementation
[0045] 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.
[0046] 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.
[0047] 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.
[0048] 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.
[0049] 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.
[0050] 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).
[0051] 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.
[0052] 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.
[0053] 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 in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery applications, market demand is also constantly increasing.
[0054] In the battery manufacturing process, the tab area of the electrode sheet usually needs to be cut to form the tab. However, during the transport of the electrode sheet, it often vibrates, leading to poor cutting and affecting the cutting quality of the electrode sheet.
[0055] To address the problem of poor electrode cutting caused by electrode vibration, this application designs an electrode cutting device, which includes a roller assembly for transporting the electrode, a cutting device for cutting the tab area of the electrode, and a first adsorption device for adsorbing the coating area of the electrode. The first adsorption device can adsorb the electrode during the electrode transport process to reduce the risk of electrode vibration, thereby helping to improve the cutting quality and efficiency of the electrode.
[0056] The electrode cutting equipment disclosed in this application is used in a battery production line, specifically for cutting the tab area of the electrode sheet, in order to reduce the risk of poor cutting caused by electrode sheet vibration, and to help improve the cutting quality and cutting efficiency of the tab area of the electrode sheet.
[0057] Please see Figure 1 , Figure 1This is a structural schematic diagram of an electrode cutting device provided in some embodiments of this application. An embodiment of this application provides an electrode cutting device 100, including: a roller assembly 10, a cutting device, and a first adsorption device 30. The roller assembly 10 includes a first guide roller 11 and a second guide roller 12, spaced apart. The space between the first guide roller 11 and the second guide roller 12 is used to place an electrode 200 and to provide a driving force to the electrode 200. The first adsorption device 30 has a first cavity 311, which is connected to at least one first negative pressure pipe 33. The first adsorption device 30 includes a first adsorption element 32, which has multiple adsorption holes 321. The first adsorption element 32 is used to adhere to and adsorb the coating area 201 of the electrode 200.
[0058] As an example, the first roller 11 and the second roller 12 are spaced apart from top to bottom, and the first adsorption device 30 and the cutting device are respectively located on the left and right sides of the electrode sheet 200 in the thickness direction. Alternatively, the first roller 11 and the second roller 12 are spaced apart from left to right, and the first adsorption device 30 and the cutting device are respectively located on the upper and lower sides of the electrode sheet 200 in the thickness direction. As an example, the electrode sheet 200 can be a positive electrode sheet or a negative electrode sheet. The middle part of the electrode sheet 200 is a coating area 201, which extends along the length direction of the electrode sheet 200 and is used to coat the active material. Tab areas 202 are formed on both sides of the width direction of the coating area 201. The tab areas 202 do not need to be coated with active material, and tab areas 202 can be formed after being cut.
[0059] The first roller 11 and the second roller 12 can be driven to rotate by a motor. The electrode 200 is located between the first roller 11 and the second roller 12. During rotation, the first roller 11 and the second roller 12 can provide traction force for transmitting the electrode 200, so that the electrode can be continuously transmitted between the first roller 11 and the second roller 12.
[0060] As an example, the cutting device can be a laser cutting machine, and the laser beam emitted by the laser cutting machine is set to correspond to the tab area 202 of the electrode 200.
[0061] Understandably, the first negative pressure pipeline 33 is connected to the first cavity 311 and is used to provide negative pressure to the first cavity 311, thereby enabling the electrode to be adsorbed onto the first adsorption element 32 by means of vacuuming.
[0062] As an example, the first adsorption device 30 may be configured to correspond only to the coating area of the electrode 200, or it may be configured to correspond to both the coating area 201 and the tab area 202 of the electrode 200. When the first adsorption device 30 is configured to correspond to both the coating area 201 and the tab area 202 of the electrode 200, a clearance cavity may be provided at the position of the cutting area of the first adsorption device 30 corresponding to the tab area 202 to reduce the risk of the cutting device cutting the first adsorption device 30 when cutting the tab area 202 of the electrode 200.
[0063] By providing a first adsorption device 30 for adsorbing at least the coating area 201 of the electrode 200, the electrode can be stably transported during the transmission process due to the adsorption effect of the first adsorption device 30, thereby reducing the impact of electrode vibration. This improves the stability of the cutting device when cutting the tab area 202 of the electrode 200 and helps to improve the cutting quality and efficiency of the electrode 200.
[0064] Please see Figure 2 , Figure 2 This is a schematic diagram of the structure of a first adsorption device provided in some embodiments of this application. According to some embodiments of this application, the first adsorption device 30 further includes a first frame 31, the first frame 31 includes a first base plate and a first side plate surrounding the periphery of the first base plate, a first cavity 311 is defined between the first side plate and the base plate, the first cavity 311 is provided with a first opening, and the first adsorption member 32 is sealed in the first opening; wherein, the first frame 31 is connected to at least one first negative pressure pipeline 33.
[0065] As an example, the first adsorption element 32 can be a panel made of a high-temperature resistant material such as polytetrafluoroethylene.
[0066] As an example, the number of first negative pressure lines 33 can be set to one or more. And the first negative pressure lines 33 can be set in the first frame 31 near the tab area 202 of the electrode plate 200.
[0067] By attaching the first adsorption member 32 to the coating area 201 of the electrode 200, the electrode 200 can be adsorbed onto the first adsorption member 32 when the first negative pressure pipeline 33 provides negative pressure to draw air during the transmission of the electrode. This reduces the risk of vibration during the transmission of the electrode 200, thereby improving the accuracy of the cutting device when cutting the tab area of the electrode 200, and improving the cutting quality and efficiency of the electrode 200.
[0068] Please see Figure 5 , Figure 5 This is a partial structural schematic diagram from another perspective of the electrode cutting device provided in some embodiments of this application. In some embodiments, a fixing device is provided on the side of the first frame 31 opposite to the first adsorption member 32, and the fixing device is used to fix the first adsorption device 30.
[0069] As an example, the fixing device may include a first fixing plate 71 and a second fixing plate 72. The first fixing plate 71 is fixedly connected to the first frame 31 and is provided with a connecting channel. The second fixing plate 72 passes through the connecting channel and is used to connect with an external object.
[0070] Furthermore, the fixing device also includes a locking member 74. The first fixing plate 71 has a threaded hole at the position corresponding to the connecting channel. The locking member 74 is used to connect with the connecting hole by thread and to fasten the second fixing plate 72.
[0071] Please see Figure 2 In some embodiments, the first negative pressure line 33 is provided with a pressure regulating valve 34.
[0072] The air pressure regulating valve 34 can regulate the air pressure in the first cavity 311, thereby regulating the adsorption force of the first adsorption device 30 on the electrode 200, so as to reduce the risk of damage to the electrode 200 due to excessive adsorption force, and reduce the risk of unstable adsorption of the electrode 200 due to insufficient adsorption force.
[0073] According to some embodiments of this application, the first frame 31 and the first adsorption member 32 are integrally formed.
[0074] As an example, the first frame 31 and the first adsorption component 32 can be integrally printed using 3D printing technology.
[0075] The first frame 31 and the first adsorption element 32 are configured as an integral structure, which can improve the sealing between the first adsorption element 32 and the first frame 31, and help reduce the loss of gas when the negative pressure is increased in the first cavity 311, thereby improving the stability of the adsorption of the electrode.
[0076] According to some embodiments of this application, a flow channel is provided in the first cavity 311. The flow channel bends and extends from one side of the first frame 31 to the other side, and each end of the flow channel is connected to a first negative pressure pipe 33; wherein, the first adsorption member 32 has multiple adsorption holes in the area corresponding to the flow channel.
[0077] As an example, the area of the flow channel is not less than 2 / 3 of the area of the cavity.
[0078] By providing a bent and extended flow channel in the first cavity 311, and connecting a first negative pressure pipe 33 to each end of the flow channel, the two first negative pressure pipes 33 simultaneously provide negative pressure to the flow channel, thereby improving the stability of the gas pressure in the flow channel. Furthermore, by providing multiple adsorption holes on the first adsorption element 32 corresponding to the flow channel area, the loss of negative pressure gas can be reduced, and the adsorption capacity of the first adsorption device 30 can be further improved.
[0079] Please see Figure 1According to some embodiments of this application, the cutting device includes a moving mechanism 21 and a first cutting member 22 and a second cutting member 23 disposed on the moving mechanism 21. The first cutting member 22 and the second cutting member 23 are respectively used to cut the tab areas 202 on both sides of the width direction of the electrode sheet 200. The moving mechanism 21 is used to drive the first cutting member 22 and the second cutting member 23 to move.
[0080] Understandably, the electrode 200 has tab regions 202 on both sides in the width direction.
[0081] As an example, both the first cutting component 22 and the second cutting component 23 are laser cutting machines.
[0082] As an example, the moving mechanism 21 can be a linear motor or a multi-directional sliding table.
[0083] The moving mechanism 21 can drive the first cutting member 22 and the second cutting member 23 to move along a preset direction, so that the cutting heads of the first cutting member 22 and the second cutting member 23 are respectively aligned with the tab areas 202 on both sides of the width direction of the electrode sheet 200, thereby achieving the precision of cutting the tab areas 202.
[0084] Please see Figure 1 According to some embodiments of this application, the moving mechanism 21 includes a first slide rail 211, a second slide rail 212 and a third slide rail 213. The first slide rail 211 extends along a first direction, the second slide rail 212 and the second slide rail 213 extend along a second direction intersecting the first direction and are both slidably connected to the first slide rail 211, the first cutting member 22 is slidably connected to the second slide rail 212, and the second cutting member 23 is slidably connected to the third slide rail 213. The first direction is the axial direction of the first roller 11.
[0085] Understandably, the first direction is the width of the electrode, and the second direction is the direction perpendicular to the thickness of the electrode.
[0086] As an example, the first slide rail 211, the second slide rail 212, the third slide rail 213, the first cutting piece 22, and the second cutting piece 23 are all electrically connected to the control device, which can adjust the positions of the first slide rail 211, the second slide rail 212, the third slide rail 213, the first cutting piece 22, and the second cutting piece 23 in real time.
[0087] When the second slide rail 212 and the third slide rail 213 slide relative to the first slide rail 211 along the first direction, they can drive the first cutting element 22 and the second cutting element 23 to move along the first direction, thereby adjusting the position of the first cutting element 22 and the second cutting element 23 so that the cutting heads of the first cutting element 22 and the second cutting element 23 are respectively aligned with the tab areas 202 on both sides of the width direction of the electrode sheet 200. The first cutting element 22 can slide relative to the second slide rail 212 along the second direction, and the second cutting element 23 can slide relative to the third direction along the second direction, thereby adjusting the distance between them and the electrode sheet to achieve focusing of the first cutting element 22 and the second cutting element 23, which can help improve the accuracy of cutting the electrode sheet.
[0088] Please see Figure 1 and Figure 3 , Figure 3 This is a schematic diagram of the structure of a dust removal fixture provided in some embodiments of this application. According to some embodiments of this application, the electrode cutting device 100 further includes a dust removal fixture 40, which is used to be disposed in the tab area 202 of the electrode 200 and located on the side of the electrode 200 away from the first adsorption device 30. The dust removal fixture 40 includes a fixture body 41, and an air blowing channel (not shown in the figure) is defined in the fixture body 41. One end of the air blowing channel is configured as an air blowing port 411, which is used to blow air into the tab area 202 of the electrode 200. The other end of the air blowing channel is connected to a positive pressure pipeline 43, which is used to supply air into the air blowing channel.
[0089] Understandably, there are two dust removal fixtures 40. The two dust removal fixtures 40 are respectively set on both sides of the width direction of the electrode 200 and are used to blow air into the two tab areas 202 of the electrode 200.
[0090] As an example, positive pressure line 43 is used to supply cold air, such as cold air or helium, into the blowing channel.
[0091] As an example, a pressure regulating valve 34 can also be installed on the positive pressure line 43 to regulate the flow rate and speed of the blowing air.
[0092] When the cutting device cuts the tab area 202 of the electrode 200, the positive pressure pipeline 43 blows gas into the air blowing channel. The gas is then blown to the tab area 202 of the electrode 200 through the air blowing port 411. On the one hand, the gas acts as a protective gas, reducing the risk of material oxidation in the tab area 202 of the electrode 200 due to high temperature during the cutting process. It also cools the cutting area, reducing the heat-affected zone and helping to protect the cutting quality and precision of the cutting surface. On the other hand, the gas can promptly blow away the slag generated during the cutting process, keeping the cutting head of the cutting device clean and reducing the risk of slag clogging the cutting head and affecting welding quality.
[0093] Please see Figure 3 According to some embodiments of this application, the fixture body 41 is further provided with at least one suction channel (not shown in the figure), each suction channel is spaced apart from the blowing channel, one end of the suction channel is connected to a suction member 42, the suction member 42 is provided with a suction port 421 adjacent to the blowing port 411, and the other end of the suction channel is connected to a second negative pressure pipeline 44, which is used to provide negative pressure to the suction channel.
[0094] As an example, the suction component 42 can be a suction tube, such as a round tube or a flat tube. The suction component 42 is integrally connected to the fixture body 41, and the suction component 42 has a suction air passage that communicates with the suction channel.
[0095] In some embodiments, the second negative pressure line 44 is also connected to a pressure regulating valve 34.
[0096] When the cutting device cuts the tab area 202 of the electrode 200, the second negative pressure pipeline 44 provides negative pressure to the suction channel, so that the suction component 42 can promptly remove the welding slag and gas generated during cutting through the suction port 421, thereby helping to further protect the cutting interface and the cleanliness of the cutting head, and improving the cutting quality of the tab area 202 of the electrode 200.
[0097] Please see Figure 3 According to some embodiments of this application, there are two air intake channels, which are spaced apart on both sides of the air blowing channel, and each air intake channel is connected to an air intake component 42.
[0098] By setting two suction channels on both sides of the blowing channel, and connecting each suction channel to a suction element 42, the two suction elements 42 can simultaneously suck up the welding slag and gas generated during cutting when blowing air into the tab area 202 of the electrode 200, thereby improving the cleaning efficiency of the cutting area of the tab area 202 of the electrode 200.
[0099] Please see Figure 3 According to some embodiments of this application, the suction member 42 includes a suction pipe, and the suction ports 421 of the two suction members 42 are arranged opposite to each other, with the air inlet direction of each suction port 421 intersecting the air outlet direction of the blowing port 411.
[0100] As an example, the inhalation tube can be set as a bend.
[0101] The air intake direction of the air inlet 421 is the axial direction of the air inlet 421, and the air outlet direction of the air outlet 411 is the axial direction of the air outlet 411.
[0102] As an example, the air intake direction of the air inlet 421 is at an acute angle to the air outlet direction of the air outlet 411.
[0103] Specifically, a cutting area is formed between the two suction members 42 for the cutting device to cut the tab area 202 of the electrode 200.
[0104] By setting the suction component 42 in the form of a suction pipe, the bent suction component 42 can surround the air blowing port 411, and the suction direction of the suction port 421 of the suction component 42 can be intersected with the air blowing direction of the air blowing port 411, so that when the air blowing port 411 is used to blow away the welding slag generated by cutting, the suction port 421 can timely suck away the welding slag and gas generated by cutting from both sides of the air blowing port 411.
[0105] Please see Figure 1 and Figure 4 , Figure 4 This is a schematic diagram of the structure of a second adsorption device provided in some embodiments of this application. According to some embodiments of this application, the electrode cutting device 100 further includes a second adsorption device 50, which is used to be disposed in the tab region 202 of the electrode 200 and to adsorb the tab region 202 of the electrode 200.
[0106] By setting a second adsorption device 50 for adsorbing the tab area 202 of the electrode 200, the tab area 202 of the electrode 200 can be adsorbed, thereby reducing the risk of the tab area 202 shaking and further improving the cutting quality of the tab area 202.
[0107] According to some embodiments of this application, the second adsorption device 50 includes a second frame 51 and a second adsorption member 52. The second frame 51 defines a second cavity with a second opening. The second adsorption member 52 is sealed at the second opening and fixedly connected to the second frame 51. The second adsorption member 52 is used to fit against one side of the tab area 202 of the electrode 200. The second adsorption member 52 is provided with a plurality of adsorption holes 321. The second frame 51 is connected to a third negative pressure pipeline 53 that communicates with the cavity.
[0108] In some embodiments, the third negative pressure line 53 is also connected to a pressure regulating valve 34.
[0109] In some embodiments, the number of second adsorption devices 50 can be set to four. Two second adsorption devices 50 are respectively provided in the tab areas 202 formed on both sides of the width direction of the electrode plate 200. The two second adsorption devices 50 provided on each side are respectively located on the upper and lower sides of the dust removal fixture 40.
[0110] Please see Figure 5 In some embodiments, the second adsorption device 50 is provided with a third fixing plate 73, which is fixedly connected to the fixture body 41. The third fixing plate 73 is provided with an insertion interface, and the second fixing plate 72 of the fixing device is inserted and connected to the insertion interface, and can be locked by the locking member 74.
[0111] According to some embodiments of this application, the electrode cutting equipment 100 further includes a receiving device 60, which is disposed below the roller assembly 10 and is used to set the tab area 202 corresponding to the electrode 200.
[0112] As an example, the receiving device 60 has two receiving bins, each receiving bin having a receiving port, and the two receiving ports are respectively positioned facing the tab areas 202 on both sides of the width direction of the electrode sheet 200.
[0113] After the tab area 202 of the electrode 200 is cut, the waste generated can fall into the collection device 60 below it under the action of gravity, thereby helping to improve the cleanliness of the cutting environment.
[0114] According to some embodiments of this application, see Figures 1 to 4 This application provides an electrode cutting device 100, including a roller assembly 10, a cutting device, a first adsorption device 30, a second adsorption device 50, and a dust removal fixture 40. The roller assembly 10 includes a first guide roller 11 and a second guide roller 12, which are spaced apart from top to bottom. The space between the first guide roller 11 and the second guide roller 12 is used to place an electrode 200 and to provide a driving force for the electrode 200. The cutting device is used to cut the tab area 202 of the electrode 200. The first adsorption device 30 is disposed on the coating area 201 of the electrode 200 and adsorbs the coating area 201 of the electrode 200. The dust removal fixture 40 is disposed corresponding to the tab area 202 of the electrode 200 and can blow air onto the tab area 202 of the electrode 200. The second adsorption device 50 is disposed on the tab area 202 of the electrode 200 and is adjacent to the storage fixture, and is used to adsorb the tab area 202 of the electrode 200. By adopting the above technical solution, the risk of poor cutting of the tab area 202 of the electrode 200 due to electrode vibration can be reduced, which helps to improve the cutting quality and cutting efficiency of the tab area 202 of the electrode 200.
[0115] According to some embodiments of this application, this application also provides a battery production line, including the electrode cutting equipment 100 as described in any one of the first aspect embodiments.
[0116] The battery production line provided in this application includes the electrode cutting equipment described in any of the above embodiments, and therefore has the technical effects of any of the above embodiments, which will not be repeated here.
[0117] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An electrode cutting device, characterized in that, include: The roller assembly includes a first guide roller and a second guide roller, the first guide roller and the second guide roller are spaced apart, and the space between the first guide roller and the second guide roller is used to place an electrode sheet and to provide a driving force for the belt to the electrode sheet; A cutting device for cutting the tab area of the electrode sheet; A first adsorption device has a first cavity, the first cavity is connected to at least one first negative pressure pipeline, and the first adsorption device includes a first adsorption element, the first adsorption element is provided with a plurality of adsorption holes, the first adsorption element is used to at least fit against the coating area of the electrode sheet, and adsorb the coating area of the electrode sheet.
2. The electrode cutting equipment according to claim 1, characterized in that, The first adsorption device further includes a first frame, the first frame includes a first base plate and a first side plate surrounding the periphery of the first base plate, the first side plate and the base plate define a first cavity, the first cavity has a first opening, the first adsorption element is sealed in the first opening and fixedly connected to the first frame; The first frame is connected to at least one of the first negative pressure pipelines.
3. The electrode cutting equipment according to claim 2, characterized in that, The first frame and the first adsorption element are integrally formed.
4. The electrode cutting equipment according to claim 2, characterized in that, The first cavity is provided with a flow channel, which extends from one side of the first frame to the other side by bending, and each end of the flow channel is connected to a first negative pressure pipeline. The first adsorption element has multiple adsorption holes in the region corresponding to the flow channel.
5. The electrode cutting equipment according to any one of claims 1-4, characterized in that, The cutting device includes a moving mechanism and a first cutting element and a second cutting element disposed on the moving mechanism. The first cutting element and the second cutting element are respectively used to cut the tab area, and the moving mechanism is used to drive the first cutting element and the second cutting element to move.
6. The electrode cutting equipment according to claim 5, characterized in that, The moving mechanism includes a first slide rail, a second slide rail, and a third slide rail. The first slide rail extends along a first direction, and the second slide rail extends along a second direction intersecting the first direction, and both are slidably connected to the first slide rail. The first cutting element is slidably connected to the second slide rail, and the second cutting element is slidably connected to the third slide rail. The first direction is the axial direction of the first roller.
7. The electrode cutting equipment according to any one of claims 1-4, characterized in that, The electrode cutting equipment further includes two dust removal fixtures, which are used to set on the two tab areas of the electrode and located on the side of the electrode away from the first adsorption device. Each dust removal fixture includes a fixture body, and the fixture body is provided with an air blowing channel. One end of the air blowing channel is configured as an air blowing port, which is used to blow air into the tab area of the electrode. The other end of the air blowing channel is connected to a positive pressure pipeline, which is used to supply air into the air blowing channel.
8. The electrode cutting equipment according to claim 7, characterized in that, The fixture body is also provided with at least one suction channel, and each suction channel is spaced apart from the blowing channel. One end of the suction channel is connected to a suction component, and the suction component is provided with a suction port adjacent to the blowing port. The other end of the suction channel is connected to a second negative pressure pipeline, which is used to provide negative pressure to the suction channel.
9. The electrode cutting equipment according to claim 8, characterized in that, The number of air intake channels is two, and the two air intake channels are spaced apart on both sides of the air blowing channel. Each air intake channel is connected to one air intake component.
10. The electrode cutting equipment according to claim 9, characterized in that, The suction component includes a suction tube, and the suction ports of the two suction components are arranged opposite to each other. The air inlet direction of each suction port intersects with the air outlet direction of the blowing port.
11. The electrode cutting equipment according to claim 7, characterized in that, The electrode cutting equipment further includes a second adsorption device, which is used to be disposed in the tab area of the electrode and adsorb the tab area of the electrode.
12. The electrode cutting equipment according to claim 11, characterized in that, The number of the second adsorption devices is four. The four second adsorption devices are divided into two groups and arranged in the two tab areas of the electrode sheet. Each group is provided with two second adsorption devices. The two second adsorption devices in each group are located on opposite sides of the dust removal fixture and are used to adsorb the tab areas of the electrode sheet.
13. The electrode cutting equipment according to claim 12, characterized in that, The second adsorption device includes a second frame and a second adsorption element. The second frame includes a second base plate and a second side plate surrounding the periphery of the second base plate. A second cavity is defined between the second side plate and the second base plate. The second cavity has a second opening. The second adsorption element is sealed in the second opening and fixedly connected to the second frame. The second frame is connected to at least one third negative pressure pipeline.
14. The electrode cutting equipment according to any one of claims 1-4, characterized in that, The electrode cutting equipment also includes a receiving device, which is located on one side of the roller assembly along the direction of gravity and is used to correspond to the tab area of the electrode.
15. A battery production line, characterized in that, Includes the electrode cutting equipment as described in any one of claims 1-14.