Cutting device for lithium battery pole piece processing

Abstract

The utility model relates to the technical field of lithium battery pole piece processing, in particular to a cutting device for lithium battery pole piece processing, which comprises a supporting bottom plate, supporting plates are symmetrically welded and fixed on the outer side of the supporting bottom plate, an unwinding rotating shaft is rotatably connected in the supporting plates, a pole piece roll is clamped and connected on the outer side of the unwinding rotating shaft, and the pole piece roll is fixed on the supporting bottom plate. The tail end of the unwinding rotating shaft is fixedly connected with a connecting rotating shaft through threads, and the connecting rotating shaft is rotationally connected with the supporting plate. The guide structure is arranged, in the pole piece conveying process, the conveying track can be limited through the guide wheels to prevent the pole pieces from deviating, the tension of the pole pieces is adjusted by controlling the height of the adjusting rollers, the pole pieces are conveyed smoothly and stably, in the cutting process, the situation that the pole pieces are damaged due to the fact that the pressure is too large in the cutting process is prevented through the buffering and pressing structures, and the cutting efficiency is improved. And the pole piece can be pressed and fixed, so that the cutting quality of the pole piece is ensured.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery electrode processing technology, and in particular to a cutting device for lithium battery electrode processing. Background Technology

[0002] Lithium-ion battery electrodes are key sheet-like components that perform the electrode function in lithium-ion batteries. They are divided into positive electrode electrodes and negative electrode electrodes. They are made by mixing active materials, conductive agents, binders, etc. in a certain proportion, coating them evenly on metal foil, and then drying, rolling and other processes. During the processing of lithium-ion battery electrodes, cutting equipment is needed to cut the electrodes to the size that conforms to the size of the lithium-ion battery to ensure that they can be installed on the lithium-ion battery.

[0003] In the prior art, such as the “Lithium Battery Electrode Cutting Device” in Chinese Patent CN220782425U, the utility model uses an electric telescopic rod to push the blade at the bottom to cut the placed electrode, and scrapes off the electrode by a scraper that is close to the surface of the cutter to prevent the electrode from adhering to the scraper.

[0004] Existing lithium battery electrode cutting devices are not convenient for positioning lithium battery electrodes during use, which can easily cause the electrodes to become skewed and affect the cutting quality. Furthermore, due to the lack of a fixing structure, lithium battery electrodes are prone to sliding and shifting during processing and cutting, thus affecting the cutting accuracy of lithium battery electrodes. Utility Model Content

[0005] To overcome the problems of inconvenience in positioning lithium battery electrodes during the use of lithium battery electrode cutting equipment, which easily leads to electrode skewing and affects cutting quality, and the lack of a fixing structure during the processing and cutting of lithium battery electrodes, which easily causes lithium battery electrodes to slide and shift, thus affecting the cutting accuracy of lithium battery electrodes.

[0006] The technical solution of this utility model is as follows: a cutting device for processing lithium battery electrode sheets, including a supporting base plate, supporting columns are welded at equal intervals on the bottom surface of the supporting base plate, anti-slip pads are fixedly connected to the bottom surface of the supporting columns, supporting plates are symmetrically welded and fixed to the outer side of the supporting base plate, an unwinding shaft is rotatably connected inside the supporting plate, an electrode roll is engaged with the outer side of the unwinding shaft, and a connecting shaft is fixedly connected to the end of the unwinding shaft by a thread, and the connecting shaft is rotatably connected to the supporting plate.

[0007] Preferably, a transport bracket is welded and fixed to the top surface of the support base plate near the support plate, a transport roller is symmetrically rotatably connected to the inner side of the transport bracket, a transmission wheel is fixedly connected to the end of the transport roller, and a set of transmission wheels is fixedly connected to the end of the unwinding shaft away from the connecting shaft.

[0008] Preferably, a transport motor is fixedly connected to the bottom surface of the support base plate, and a drive wheel is fixedly connected to the output end of the transport motor. A belt is provided on the outer side of the drive wheel, and the belt is located on the outer side of the transmission wheel. The drive wheel is connected to the transmission wheel through the belt.

[0009] Preferably, a guide frame is symmetrically fixedly connected to the inner side of the transport bracket, and guide wheels are symmetrically rotatably connected to the inner wall of the guide frame. A first electric telescopic rod is fixedly connected to the top surface of the transport bracket, and an adjustment frame is fixedly connected to the output end of the first electric telescopic rod. An adjustment rod is rotatably connected to the inner wall of the adjustment frame.

[0010] Preferably, a cutting table is fixedly connected to the top surface of the end of the support base plate away from the electrode roll. A cutting groove is provided at the center of the cutting table. A cutting bracket is welded and fixed to the top surface of the support base plate in close contact with the outer side of the cutting table. Sliding grooves are symmetrically provided on the outer side of the cutting bracket.

[0011] Preferably, a second electric telescopic rod is fixedly connected to the top surface of the cutting bracket, a cutting top plate is fixedly connected to the bottom surface of the second electric telescopic rod, and the cutting top plate is slidably connected to the slide groove. A cutting blade is fixedly connected to the top surface of the cutting top plate, and the cutting blade is located above the cutting groove.

[0012] Preferably, a buffer slide rod is fixedly connected inside the slide groove, the cutting top plate is slidably connected to the buffer slide rod, a buffer spring is slidably sleeved on the outer side of the buffer slide rod, a pressing slide rod is symmetrically slidably connected to the top surface of the cutting top plate, a pressing spring is slidably sleeved on the outer side of the pressing slide rod, and a pressing plate is fixedly connected to the bottom surface of the pressing slide rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. The electrode sheet can be transported into the device by the transport roller. During the transport process, the guide wheel can limit the transport trajectory of the electrode sheet to prevent the electrode sheet from deviating and affecting the cutting quality. The first electric telescopic rod is used to push the adjusting roller downward through the adjusting frame to adjust the tension of the electrode sheet and ensure that the electrode sheet remains flat and stable during the transport process.

[0015] 2. During the cutting process, the second electric telescopic rod pushes the cutting top plate to slide in the groove, causing the cutting top plate to slide downward on the buffer slide rod, compressing the buffer spring. During the continuous downward pressure, it pushes the pressing plate to contact the electrode, causing the cutting top plate to slide on the pressing slide rod, compressing the pressing spring. Thus, the elasticity of the buffer spring can be used to buffer the cutting blade, preventing excessive pressure from damaging the electrode. The elasticity of the pressing spring also pushes the pressing plate to press the electrode, preventing the electrode from moving or deforming during the cutting process, and ensuring the cutting quality of the electrode. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the unwinding shaft of this utility model.

[0018] Figure 3 The diagram shown is a partial cross-sectional three-dimensional structural schematic of the transport support of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the pressing plate of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the cutting blade of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Support base plate; 201. Support column; 202. Anti-slip pad; 203. Support plate; 204. Unwinding shaft; 205. Electrode roll; 206. Connecting shaft; 207. Transport bracket; 208. Transport roller; 209. Drive wheel; 210. Transport motor; 211. Drive wheel; 212. Belt; 301. Guide frame; 302. Guide wheel; 303. First electric telescopic rod; 304. Adjusting frame; 305. Adjusting roller; 401. Cutting table; 402. Cutting groove; 403. Cutting bracket; 404. Slide groove; 405. Second electric telescopic rod; 406. Cutting top plate; 407. Cutting blade; 408. Buffer slide rod; 409. Buffer spring; 410. Pressing slide rod; 411. Pressing spring; 412. Pressing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5This utility model provides an embodiment: a cutting device for processing lithium battery electrode sheets, including a supporting base plate 1, with supporting columns 201 welded at equal intervals on the bottom surface of the supporting base plate 1, anti-slip pads 202 fixedly connected to the bottom surface of the supporting columns 201, and supporting plates 203 symmetrically welded and fixed to the outer side of the supporting base plate 1. An unwinding shaft 204 is rotatably connected inside the supporting plate 203, and an electrode roll 205 is engaged with the outer side of the unwinding shaft 204. A connecting shaft 206 is threadedly fixedly connected to the end of the unwinding shaft 204, and the connecting shaft 206 is rotatably connected to the supporting plate 203.

[0024] A transport bracket 207 is welded and fixed to the top surface of the support base plate 1 near the support plate 203. A transport roller 208 is symmetrically rotatably connected to the inner side of the transport bracket 207. A transmission wheel 209 is fixedly connected to the end of the transport roller 208. A set of transmission wheels 209 is fixedly connected to the end of the unwinding shaft 204 away from the connecting shaft 206. The transmission wheels 209 drive the transport roller 208 to rotate, thereby transporting the unwound electrode sheet.

[0025] A transport motor 210 is fixedly connected to the bottom surface of the support base plate 1. A drive wheel 211 is fixedly connected to the output end of the transport motor 210. A belt 212 is provided on the outer side of the drive wheel 211 and is located on the outer side of the transmission wheel 209. The drive wheel 211 is connected to the transmission wheel 209 through the belt 212. The transport motor 210 drives the drive wheel 211 to rotate and transmits power through the belt 212, thereby driving the transmission wheel 209 to rotate and providing power for the operation of the device.

[0026] A guide frame 301 is symmetrically fixedly connected to the inner side of the transport bracket 207. Guide wheels 302 are symmetrically rotatably connected to the inner wall of the guide frame 301. A first electric telescopic rod 303 is fixedly connected to the top surface of the transport bracket 207. An adjusting frame 304 is fixedly connected to the output end of the first electric telescopic rod 303. An adjusting rod 305 is rotatably connected to the inner wall of the adjusting frame 304. During the transport of the electrode sheet, the guide wheel 302 restricts the transport trajectory of the electrode sheet to prevent the electrode sheet from shifting and affecting the cutting quality. The first electric telescopic rod 303 pushes the adjusting rod 305 downward through the adjusting frame 304 to facilitate the adjustment of the tension of the electrode sheet and ensure that the electrode sheet remains flat and stable during transport.

[0027] A cutting table 401 is fixedly connected to the top surface of the supporting base plate 1 away from the electrode roll 205. A cutting groove 402 is provided at the center of the cutting table 401. A cutting bracket 403 is welded and fixed to the top surface of the supporting base plate 1 in close contact with the outer side of the cutting table 401. A sliding groove 404 is symmetrically provided on the outer side of the cutting bracket 403 to transport the electrode to the cutting table 401 for cutting. The cutting groove 402 prevents the blade from colliding with the cutting table 401 and being damaged during the cutting process.

[0028] A second electric telescopic rod 405 is fixedly connected to the top surface of the cutting bracket 403, and a cutting top plate 406 is fixedly connected to the bottom surface of the second electric telescopic rod 405. The cutting top plate 406 is slidably connected to the slide groove 404. A cutting blade 407 is fixedly connected to the top surface of the cutting top plate 406, and the cutting blade 407 is located above the cutting groove 402. The second electric telescopic rod 405 is used to push the cutting top plate 406 to slide in the slide groove 404, thereby pushing the cutting blade 407 to move downward, so that the cutting blade 407 cuts into the cutting groove 402 and cuts the electrode sheet on the cutting table 401.

[0029] A buffer slide rod 408 is fixedly connected inside the slide groove 404. The cutting top plate 406 is slidably connected to the buffer slide rod 408. A buffer spring 409 is slidably sleeved on the outer side of the buffer slide rod 408. A pressing slide rod 410 is symmetrically slidably connected to the top surface of the cutting top plate 406. A pressing spring 411 is slidably sleeved on the outer side of the pressing slide rod 410. A pressing plate 412 is fixedly connected to the bottom surface of the pressing slide rod 410. During the cutting process, the cutting top plate 406 slides downward on the buffer slide rod 408. The buffer spring 409 is compressed, and during the continuous downward pressure, the pressing plate 412 is pushed to contact the electrode, causing the cutting top plate 406 to slide on the pressing slide bar 410 to compress the pressing spring 411. The elastic force of the buffer spring 409 can provide buffer for the cutting blade 407 to cut, preventing excessive pressure from damaging the electrode. The elastic force of the pressing spring 411 can push the pressing plate 412 to press the electrode tightly, preventing the electrode from moving or deforming during the cutting process and ensuring the cutting quality of the electrode.

[0030] Working principle: According to Figures 1-5 As shown, during operation, the electrode roll 205 is engaged with the unwinding shaft 204, and the connecting shaft 206 is threaded through the support plate 203 and fixed to the unwinding shaft 204, thereby installing and fixing the electrode roll 205 to the device.

[0031] The drive wheel 211 is driven by the transport motor 210 to rotate, and the power is transmitted through the belt 212, which drives the transmission wheel 209 to rotate, providing power for the operation of the device. The transmission wheel 209 drives the unwinding shaft 204 and the transport roller 208 to rotate, thereby causing the electrode roll 205 to rotate and unload, and the transport roller 208 transports the unloaded electrode.

[0032] During the transportation of the electrode sheet, the guide wheel 302 restricts the transportation trajectory of the electrode sheet to prevent the electrode sheet from deviating and affecting the cutting quality. The first electric telescopic rod 303 pushes the adjusting rod 305 downward through the adjusting frame 304 to facilitate the adjustment of the tension of the electrode sheet and ensure that the electrode sheet remains flat and stable during transportation.

[0033] The electrode sheet is transported to the cutting table 401 for cutting. The second electric telescopic rod 405 pushes the cutting top plate 406 to slide in the slide groove 404, causing the cutting top plate 406 to slide downward on the buffer slide rod 408, compressing the buffer spring 409. During the continuous downward pressure, the pressing plate 412 is pushed to contact the electrode sheet, causing the cutting top plate 406 to slide on the pressing slide rod 410, compressing the pressing spring 411. The elastic force of the buffer spring 409 provides buffer for the cutting blade 407 to cut, preventing excessive pressure from damaging the electrode sheet. The elastic force of the pressing spring 411 pushes the pressing plate 412 to press the electrode sheet tightly, preventing the electrode sheet from moving or deforming during the cutting process, ensuring the cutting quality of the electrode sheet. Thus, during the cutting process, the cutting blade 407 is stably pushed downward, so that the cutting blade 407 cuts into the cutting groove 402, cutting the electrode sheet on the cutting table 401.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for processing lithium battery pole pieces, comprising a supporting bottom plate (1), characterized in that: The bottom surface of the support bottom plate (1) is equidistantly staggered welded with support columns (201), the bottom surface of the support column (201) is fixedly connected with anti-skid pads (202), the outer side of the support bottom plate (1) is symmetrically welded and fixed with support plates (203), the inner part of the support plate (203) is rotatably connected with unwinding rotating shafts (204), the outer side of the unwinding rotating shaft (204) is clamped and connected with pole piece rolls (205), the tail end of the unwinding rotating shaft (204) is fixedly connected with connecting rotating shafts (206), and the connecting rotating shaft (206) is rotatably connected with the support plate (203).

2. The cutting device for processing lithium battery pole piece according to claim 1, characterized in that: The end of the support bottom plate (1) close to the support plate (203) is welded and fixed with a transportation support (207) on the top surface, the inner side of the transportation support (207) is symmetrically rotatably connected with transportation bars (208), the tail end of the transportation bar (208) is fixedly connected with transmission wheels (209), and one group of transmission wheels (209) is fixedly connected with the end of the unwinding rotating shaft (204) away from the connecting rotating shaft (206).

3. The cutting device for processing lithium battery pole piece according to claim 2, characterized in that: The bottom surface of the support bottom plate (1) is fixedly connected with a transportation motor (210), the output end of the transportation motor (210) is fixedly connected with driving wheels (211), the outer side of the driving wheel (211) is provided with a belt (212), and the belt (212) is arranged on the outer side of the transmission wheel (209), and the driving wheel (211) is in transmission connection with the transmission wheel (209) through the belt (212).

4. The cutting device for processing lithium battery pole piece according to claim 2, characterized in that: The inner side of the transportation support (207) is fixedly connected with guide frames (301) symmetrically, the inner walls of the guide frames (301) are rotatably connected with guide wheels (302) symmetrically, the top surface of the transportation support (207) is fixedly connected with first electric telescopic rods (303), the output end of the first electric telescopic rod (303) is fixedly connected with an adjusting frame (304), and the inner wall of the adjusting frame (304) is rotatably connected with an adjusting bar (305).

5. The cutting device for processing lithium battery pole piece according to claim 1, characterized in that: The end of the support bottom plate (1) away from the pole piece roll (205) is fixedly connected with a cutting table (401) on the top surface, a cutting groove (402) is arranged at the center position of the cutting table (401), and the top surface of the support bottom plate (1) is welded and fixed with a cutting support (403) close to the outer side of the cutting table (401), and the outer side of the cutting support (403) is symmetrically provided with sliding grooves (404).

6. The cutting device for processing lithium battery pole piece according to claim 5, characterized in that: The top surface of the cutting support (403) is fixedly connected with second electric telescopic rods (405), the bottom surface of the second electric telescopic rod (405) is fixedly connected with a cutting top plate (406), and the cutting top plate (406) is in sliding connection with the sliding groove (404), the top surface of the cutting top plate (406) is fixedly connected with a cutting knife (407), and the cutting knife (407) is located above the cutting groove (402).

7. The cutting device for processing lithium battery pole piece according to claim 6, characterized in that: The inside of the chute (404) is fixedly connected with a buffer sliding rod (408), the cutting top plate (406) is in sliding connection with the buffer sliding rod (408), the outside of the buffer sliding rod (408) is slidably sleeved with a buffer spring (409), the top surface of the cutting top plate (406) is symmetrically slidably connected with a pressing sliding rod (410), the outside of the pressing sliding rod (410) is slidably sleeved with a pressing spring (411), and the bottom surface of the pressing sliding rod (410) is fixedly connected with a pressing plate (412).

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