Handheld pole piece cutting device
By designing a handheld pole cutting device, the blade pitch adjustment of the cutting knife is achieved using the reverse threaded rod and the drive device, the problems of inaccurate cutting and waste of equipment resources in the prior art are solved, and rapid and accurate cutting and improvement of production efficiency are achieved.
Patent Information
- Application Number
- CN202421251287.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The prior art has problems of waste of equipment resources and inaccurate cutting of lithium battery electrodes in the prior art, resulting in scrapping of electrodes and wasting of equipment resources during the production process.
A hand-held pole cutting device is designed, including a hand-held bracket and two cutting knives, and the cutting blade pitch adjustment of the cutting knife is achieved through a reverse threaded rod and a drive device to ensure the accuracy of cutting.
This device can ensure portability while achieving rapid and accurate cutting of the pole sheet, improve the cutting test efficiency, and reduce the production loss of the pole sheet and the waste of equipment resources.
Smart Images
Figure CN222552355U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery testing equipment, in particular to a handheld pole piece cutting device. Background Art
[0002] As one of the mainstream energy storage devices, lithium-ion batteries are widely used in new energy vehicles, various portable electronic devices and communication equipment. The lithium-ion battery industry has entered a new stage of rapid development. Under the premise that the main material system of the battery cell cannot achieve a major breakthrough, the most critical point of market competition among major battery manufacturers lies in cost.
[0003] In the related art, the core-wrapped core structure inside the battery is formed by stacking pole pieces. For batteries of different sizes, the lengths of the pole pieces used to prepare the core structure are also different. In order to ensure that important parameters such as the pole piece surface density meet the design requirements, it is inevitable to conduct cutting tests on the continuously coated pole pieces.
[0004] When testing the cutting pieces, usually only a small number of polar fragments need to be cut. Therefore, using the cutting equipment on the production line to cut is time-consuming and labor-intensive, which will cause a waste of equipment resources. If cutting is done manually using cutting tools, it will be difficult to ensure cutting accuracy due to the uncertainty of manual operation. Utility Model Content
[0005] The embodiment of the utility model provides a handheld electrode cutting device, which can achieve fast and accurate cutting of the electrode while ensuring portability, thereby improving the efficiency of cutting and testing. The technical solution is as follows:
[0006] A handheld electrode cutting device, comprising: a handheld bracket and two cutting knives,
[0007] The handheld bracket includes a frame body, a reverse threaded rod and a holding handle. One ends of the handles of the two cutting knives can be slidably mounted on the frame body and are arranged in parallel and spaced apart. The blades of the two cutting knives are arranged toward a side away from the frame body. The reverse threaded rod can be rotatably connected to the frame body and vertically penetrated through the handles of the two cutting knives. The two cutting knives are respectively located on both sides of the reverse threaded rod having reverse threads. A driving device for driving the reverse threaded rod to rotate is provided at one end of the reverse threaded rod, and the holding handle is connected to the frame body.
[0008] Optionally, the frame includes a fixed rod and two connecting arms, the holding handle is arranged on the fixed rod, the fixed rod is arranged parallel to the reverse threaded rod and spaced apart, one end of the two connecting arms is vertically connected to the two ends of the fixed rod, the two ends of the reverse threaded rod are rotatably passed through the other ends of the two connecting arms, one end of the handles of the two cutting knives is slidably passed through the fixed rod, and scale lines are provided on the fixed rod.
[0009] Optionally, the two connecting arms are detachably connected to the fixing rod.
[0010] Optionally, the handheld pole piece cutting device also includes two support frames corresponding to the two connecting arms one by one, the support frames include a first rod body and a second rod body arranged at an acute angle, the first rod body is parallel to the knife handle and is connected to one end of the corresponding connecting arm away from the reverse threaded rod, and a pulley is provided at the end of the second rod body.
[0011] Optionally, the first rod body is a telescopic rod.
[0012] Optionally, the first rod body is detachably connected to the connecting arm.
[0013] Optionally, the handle of the cutting knife is provided with a guide groove, a sliding groove and a locking block, the guide groove and the sliding groove are arranged along the length direction of the handle, the guide groove is provided inside the handle and is connected to the side wall of the handle through the sliding groove, the blade is telescopically installed in the guide groove, and the locking block is slidably installed in the sliding groove and connected to the blade.
[0014] Optionally, the shank includes a first connecting section and a second connecting section, the guide groove, the sliding groove and the locking block are arranged on the first connecting section, the reverse threaded rod is passed through the second connecting section, and the first connecting section and the second connecting section are detachably connected.
[0015] Optionally, the driving device is a rocker.
[0016] Optionally, the holding handle is detachably connected to the frame.
[0017] The beneficial effects brought by the technical solution provided by the embodiment of the utility model include at least:
[0018] With this handheld electrode cutting device, workers can operate it independently by hand. Before cutting, they can adaptively adjust the blade spacing of the two cutting knives according to the length of the electrode to be cut, so as to achieve fixed-length cutting sampling, avoid the scrapping of a large number of electrodes due to errors caused by manual knife cutting during the production process when the electrode cutting test is required. It can achieve fast and accurate cutting of the electrode while ensuring portability, thereby improving the efficiency of cutting and testing.
[0019] At the same time, by introducing this device on the production line, the amount of sampling loss in the entire electrode manufacturing section can be controlled while ensuring quality control, without using the cutting mechanism on the production line. Combined with scientific production planning, it can greatly reduce electrode production losses, reduce equipment resource waste, and improve overall yield. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 It is a front three-dimensional structural schematic diagram of a handheld electrode cutting device provided by an embodiment of the utility model;
[0022] Figure 2 It is a three-dimensional structural schematic diagram of a cutting knife provided in an embodiment of the utility model;
[0023] Figure 3 It is a schematic diagram of the back three-dimensional structure of the handheld electrode cutting device provided by an embodiment of the utility model;
[0024] Figure 4 It is a side structural schematic diagram of another handheld pole piece cutting device provided in an embodiment of the utility model.
[0025] In the figure: 1-hand-held bracket; 2-cutting knife; 3-support frame; 11-frame; 12-reverse threaded rod; 13-gripping handle; 14-driving device; 21-handle; 21a-first connecting section; 21b-second connecting section; 22-blade; 31-first rod body; 32-second rod body; 33-pulley; 111-fixed rod; 111a-scale line; 112-connecting arm; 211-guide groove; 212-sliding groove; 213-locking block; 1121-connecting block. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0027] Figure 1 It is a front three-dimensional structural schematic diagram of a handheld electrode cutting device provided by an embodiment of the utility model; Figure 2 It is a three-dimensional structural schematic diagram of a cutting knife provided in an embodiment of the utility model; Figure 3It is a schematic diagram of the back three-dimensional structure of the handheld electrode cutting device provided by an embodiment of the utility model;
[0028] Figure 4 1 is a side view of another handheld electrode cutting device provided by an embodiment of the utility model. Figures 1 to 4 As shown, an embodiment of the utility model provides a handheld electrode cutting device, comprising: a handheld bracket 1 and two cutting knives 2.
[0029] The handheld bracket 1 includes a frame body 11, a reverse threaded rod 12 and a gripping handle 13. One end of the handles 21 of the two cutting knives 2 are slidably mounted on the frame body 11 and are arranged in parallel and spaced apart, and the blades 22 of the two cutting knives 2 are arranged facing the side away from the frame body 11. The reverse threaded rod 12 is rotatably connected to the frame body 11 and vertically penetrates the handles 21 of the two cutting knives 2. The two cutting knives 2 are respectively located on both sides of the reverse threaded rod 12 with reverse threads. A driving device 14 for driving the reverse threaded rod 12 to rotate is provided at one end of the reverse threaded rod 12, and the gripping handle 13 is connected to the frame body 11.
[0030] In the embodiment of the utility model, when it is necessary to cut the continuously coated pole piece for sampling and testing, the pole piece can be laid flat on the cutting platform. The staff first adjusts the driving device 14 based on the length of the pole piece to be cut, for example, by shaking the rocker structure connected to one end to drive the reverse threaded rod 12 to rotate. The handles 21 of the two cutting knives 2 are inserted into the reverse threaded rod 12 and are respectively located on both sides of the reverse thread. Following the clockwise or counterclockwise rotation of the threaded rod 12, the two cutting knives 2 can be driven to move closer to and away from each other along the length direction of the reverse threaded rod 12, so as to achieve the spacing adjustment between the two blades 22, corresponding to the length of the pole piece to be cut. Afterwards, the staff can hold the holding handle 13 with one hand to control the entire handheld electrode cutting device, place the blades 22 of the two cutting knives 2 against the electrode to be cut, press down hard to make the two blades 22 fully contact the surface of the electrode, and then pull or push the entire frame 11 in a direction perpendicular to the coating direction of the electrode to completely remove the electrode to be tested.
[0031] By using this handheld electrode cutting device, workers can hold it and operate it independently. Before cutting, they can adaptively adjust the distance between the blades 22 of the two cutting knives 2 according to the length of the electrode to be cut, so as to achieve fixed-length cutting sampling, avoid the scrapping of a large number of electrodes due to errors caused by manual knife cutting when the electrode cutting test is required during the production process, and can achieve fast and accurate cutting of the electrode while ensuring portability, thereby improving the efficiency of cutting and testing.
[0032] At the same time, by introducing this device on the production line, the amount of sampling loss in the entire electrode manufacturing section can be controlled while ensuring quality control, without using the cutting mechanism on the production line. Combined with scientific production planning, it can greatly reduce electrode production losses, reduce equipment resource waste, and improve overall yield.
[0033] Optionally, the frame 11 includes a fixed rod 111 and two connecting arms 112, the gripping handle 13 is arranged on the fixed rod 111, the fixed rod 111 is arranged parallel to the reverse threaded rod 12, one end of the two connecting arms 112 is vertically connected to the two ends of the fixed rod 111, the two ends of the reverse threaded rod 12 are rotatably inserted into the other ends of the two connecting arms 112, one end of the handle 21 of the two cutting knives 2 is slidably inserted into the fixed rod 111, and a scale line 111a is provided on the fixed rod 111. Exemplarily, in the embodiment of the utility model, the frame 11 structure used for overall support adopts the fixed rod 111 and the two connecting arms 112 connected to the two ends as the supporting body, the handle 21 of the cutting knife 2 is screwed with the reverse threaded rod 12 through the middle threaded hole, and the other end away from the blade 22 is sleeved on the fixed rod 111 through the through hole, and when the threaded rod 12 is driven, the fixed rod 111 is used for limiting guidance to achieve horizontal movement to approach or move away from each other. During the spacing adjustment process, the exact distance between the two cutting knives 2 can be confirmed by the scale lines 111 a on the fixed rod 111 , thereby ensuring the cutting size accuracy and achieving fast and accurate cutting.
[0034] Optionally, the two connecting arms 112 are detachably connected to the fixing rod 111. For example, in the embodiment of the utility model, a connecting block 1121 in the shape of a hoop is provided on the connecting arm 112. After the connecting arm 112 is sleeved on the set position of the fixing rod 111, the bolts are inserted and tightened so as to clamp and fix the fixing rod 111 with the connecting block 1121. When the handheld pole piece cutting device is not in use, it is convenient to disassemble, maintain and replace, thereby improving the overall service life.
[0035] Optionally, the handheld electrode cutting device further comprises two support frames 3 corresponding to the two connecting arms 112 one by one, the support frames 3 comprising a first rod 31 and a second rod 32 arranged at an acute angle, the first rod 31 being parallel to the knife handle 21 and connected to one end of the corresponding connecting arm 112 away from the reverse threaded rod 12, and a pulley 33 being arranged at the end of the second rod 32. Figure 4For example, when the staff holds the gripping handle 13 and pushes the cutting, since the frame 11 is in an overall suspended state, it is still possible that the cutting may be uneven due to shaking during the pushing process. In the embodiment of the utility model, by setting the support frame 3, after completing the alignment and contact between one side of the blade 22 of the cutting knife 2 and the pole piece, the other side of the frame 11 can be supported on the cutting plane as a whole by the second rod body 32 of the support frame 3, and the pulley 33 is used for smooth guidance during the pushing and cutting process. The staff does not need to rely on holding the frame 11, which is convenient and labor-saving, and further realizes fast and accurate cutting.
[0036] Optionally, the first rod 31 is a telescopic rod. For example, in the embodiment of the utility model, on the basis of using the support frame 3 to provide auxiliary support for the frame 11, by adjusting the first rod 31 to telescope, the distance between the second rod 32 and the end of the blade 22 of the cutting knife 2 can be further adjusted to avoid the second rod 32 pressing on the pole piece with a wider width, thereby further improving the practicality.
[0037] Optionally, the first rod 31 is detachably connected to the connecting arm 112. For example, in the embodiment of the utility model, when the width of the pole piece to be cut is greater than the distance between the second rod 32 and the end of the blade 22 of the cutting knife 2 after the first rod 31 is extended to the limit, the support frame 3 can be completely removed in this special case, and the cutting can be performed by pure manual lifting, thereby improving the overall adaptability of the handheld pole piece cutting device.
[0038] Optionally, the handle 21 of the cutting knife 2 is provided with a guide groove 211, a sliding groove 212 and a locking block 213, the guide groove 211 and the sliding groove 212 are arranged along the length direction of the handle 21, the guide groove 211 is provided inside the handle 21 and communicates with the side wall of the handle 21 through the sliding groove 212, the blade 22 is telescopically installed in the guide groove 211, and the locking block 213 is slidably installed in the sliding groove 212 and connected to the blade 22. Exemplarily, in the embodiment of the utility model, the cutting knife 2 adopts an adjustable structure, the long strip blade 22 is slidably arranged in the guide groove 211, and by toggling the locking block 213 along the extension direction of the sliding groove 212, the extension length of the blade 22 can be adjusted to meet the cutting requirements of different sizes, further improving the overall adaptability of the handheld pole piece cutting device.
[0039] Optionally, the handle 21 includes a first connecting section 21a and a second connecting section 21b, the guide groove 211, the sliding groove 212 and the locking block 213 are arranged on the first connecting section 21a, the reverse threaded rod 12 is passed through the second connecting section 21b, and the first connecting section 21a and the second connecting section 21b are detachably connected. For example, in the embodiment of the utility model, the handle 21 of the cutting knife 2 adopts a segmented detachable connection structure, and the second connecting section 21b as the main sliding part is connected to the frame 11 as a whole to realize the sliding adjustment function. The adjustable blade 22 is integrated with the first connecting section 21a which is detachably replaceable at the end, which is convenient for maintenance and replacement after long-term use without removing the handle 21 as a whole, further improving practicality.
[0040] Optionally, the gripping handle 13 is detachably connected to the frame 11. For example, in the embodiment of the utility model, the gripping handle 13 is usually arranged in the middle section of the fixed rod 111, and when the two knife handles 21 are close to each other and the distance between them is smaller than the length of the gripping handle 13, the gripping handle 13 can be detachably installed at other positions of the fixed rod 111 to avoid interference, thereby further improving practicality.
[0041] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0042] The above description is only an optional embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A handheld electrode cutting device, characterized in that: include: Handheld stand (1) and two cutting knives (2), The handheld bracket (1) comprises a frame body (11), a reverse threaded rod (12) and a gripping handle (13); one end of the handles (21) of the two cutting knives (2) are slidably mounted on the frame body (11) and are arranged in parallel and spaced apart; the blades (22) of the two cutting knives (2) are arranged facing a side away from the frame body (11); the reverse threaded rod (12) is rotatably connected to the frame body (11) and vertically penetrates the handles (21) of the two cutting knives (2); the two cutting knives (2) are respectively located on both sides of the reverse threaded rod (12) having reverse threads; one end of the reverse threaded rod (12) is provided with a driving device (14) for driving the reverse threaded rod (12) to rotate; and the gripping handle (13) is connected to the frame body (11).
2. A handheld electrode cutting device according to claim 1, characterized in that: The frame (11) comprises a fixed rod (111) and two connecting arms (112); the holding handle (13) is arranged on the fixed rod (111); the fixed rod (111) and the reverse threaded rod (12) are arranged in parallel and spaced apart; one end of the two connecting arms (112) is vertically connected to the two ends of the fixed rod (111); the two ends of the reverse threaded rod (12) are rotatably inserted through the other ends of the two connecting arms (112); one end of the handle (21) of the two cutting knives (2) is slidably inserted through the fixed rod (111); and a scale mark (111a) is provided on the fixed rod (111).
3. A handheld electrode cutting device according to claim 2, characterized in that: The two connecting arms (112) are detachably connected to the fixing rod (111).
4. A handheld electrode cutting device according to claim 2, characterized in that: The handheld electrode cutting device further comprises two support frames (3) corresponding to the two connecting arms (112) one by one, the support frames (3) comprising a first rod body (31) and a second rod body (32) arranged at an acute angle, the first rod body (31) being parallel to the knife handle (21) and connected to one end of the corresponding connecting arm (112) away from the reverse threaded rod (12), and a pulley (33) being provided at the end of the second rod body (32).
5. A handheld electrode cutting device according to claim 4, characterized in that: The first rod body (31) is a telescopic rod.
6. A handheld electrode cutting device according to claim 4, characterized in that: The first rod body (31) is detachably connected to the connecting arm (112).
7. A handheld electrode cutting device according to claim 1, characterized in that: The handle (21) of the cutting knife (2) is provided with a guide groove (211), a sliding groove (212) and a locking block (213); the guide groove (211) and the sliding groove (212) are both arranged along the length direction of the handle (21); the guide groove (211) is arranged inside the handle (21) and is connected to the side wall of the handle (21) through the sliding groove (212); the blade (22) is telescopically installed in the guide groove (211); the locking block (213) is slidably installed in the sliding groove (212) and is connected to the blade (22).
8. A handheld electrode cutting device according to claim 7, characterized in that: The knife handle (21) comprises a first connecting section (21a) and a second connecting section (21b); the guide groove (211), the sliding groove (212) and the locking block (213) are arranged on the first connecting section (21a); the reverse threaded rod (12) is passed through the second connecting section (21b); and the first connecting section (21a) and the second connecting section (21b) are detachably connected.
9. A handheld electrode cutting device according to any one of claims 1 to 8, characterized in that: The driving device (14) is a rocker.
10. A handheld electrode cutting device according to any one of claims 1 to 8, characterized in that: The holding handle (13) is detachably connected to the frame (11).