A battery foil slitting device and method with an iron removal structure

Abstract

This invention discloses a battery foil slitting device and method with an iron removal structure, relating to the technical field of battery foil slitting equipment. It includes several first transmission rollers and blades. A friction plate is fixedly mounted on the upper end of each blade. Several first tension springs are provided between the upper end of the blade and the upper end of the slitting box. An arc-shaped friction wheel is fitted on one side of the friction plate. A support plate is fitted in a groove at the bottom inner side of the slitting box corresponding to the blade position. Several second transmission rollers are rotatably mounted inside the slitting box corresponding to the positions of the first transmission rollers. A cleaning mechanism is provided at the upper end of the bottom plate corresponding to the guide roller position to facilitate the removal of iron foreign objects from the surface of the battery foil. A pushing mechanism is provided at the lower end of the slitting box to facilitate the movement of the support plate. The cleaning mechanism facilitates the removal of iron foreign objects from the surface of the battery foil, and the pushing mechanism facilitates the movement of the support plate.

Description

Technical Field

[0001] This invention relates to the field of battery foil slitting equipment technology, specifically a battery foil slitting equipment and method with an iron removal structure. Background Technology

[0002] With the nation's vigorous development of the new energy industry, the demand for aluminum foil specifically for lithium batteries is increasing. A crucial step in battery foil production is slitting the wide aluminum foil from the rolling mill into finished raw material rolls of the required width. These rolls then undergo coating, punching, stacking, and encapsulation processes to produce lithium batteries. Slitting is the final step in battery foil raw material production. Traditional cutting machines use a combination of pressure rollers and conveyor rollers to transport the aluminum foil. Once the foil extends a certain distance, a cutting blade descends to cut it. However, because the extended foil lacks support points, the cutting blade can slip during the cutting process, especially when the foil is thin and the extension distance is long. This affects the cutting quality. Furthermore, the control of foreign particles, particularly iron-containing particles, is extremely stringent during aluminum foil production. Inadequate handling of foreign particles on the battery foil surface can lead to serious consequences such as scrapped batteries and battery malfunctions.

[0003] Chinese patent CN112058810A discloses a device for removing iron from the surface of aluminum foil. This device uses symmetrical magnetic rods attached to the surface of the aluminum foil to adsorb and clean iron foreign objects adhering to the surface of the aluminum foil as the aluminum foil moves. However, after the magnetic rods adsorb the iron foreign objects, they cannot clean the foreign objects adhering to the surface of the magnetic rods in time. As a result, when the aluminum foil passes over the magnetic rods, the iron foreign objects on the magnetic rods will scratch or even damage the aluminum foil, thus affecting the production of battery foil. At the same time, since the magnetic rods are permanent magnets, they need to be manually cleaned after use, which increases the workload of the staff.

[0004] Based on this, a battery foil slitting device and method with an iron removal structure is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of this invention is to provide a battery foil slitting device and method with an iron removal structure to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A battery foil slitting device with an iron removal structure includes several first transmission rollers and blades. A friction plate is fixedly mounted on the upper end of each blade, and the friction plate is slidably disposed within a mounting hole at the upper end of a slitting box. The slitting box is fixedly mounted on the upper end of a base plate. Several first tension springs are provided between the upper end of each blade and the upper interior of the slitting box. An arc-shaped friction wheel is fitted to one side of each friction plate. The two ends of the arc-shaped friction wheel have rotating shafts rotatably disposed within mounting holes on one side of a rotating plate at the upper end of the slitting box. A first driving assembly is provided at the bottom of the slitting box to facilitate the rotation of the arc-shaped friction wheel. The bottom interior of the slitting box is connected to the blades. A support plate is installed in the mounting slot at the corresponding position. Several first transmission rollers are arranged in a rectangular array and rotate inside the slitting box. Several second transmission rollers are rotatably arranged inside the slitting box at the corresponding positions of the first transmission rollers. A second drive assembly is provided at the bottom of the slitting box to facilitate the rotation of several first and second transmission rollers. Several guide rollers are rotatably arranged on the mounting frame at the upper end of the base plate. A cleaning mechanism is provided at the upper end of the base plate at the corresponding positions of the guide rollers to facilitate the removal of iron foreign objects from the surface of the battery foil. A pushing mechanism is provided at the lower end of the slitting box to facilitate the movement of the support plate.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In one alternative: the first drive assembly includes a first driven wheel fixedly disposed at one end of a drive shaft, the drive shaft being fixedly disposed on a rotating shaft at one end of an arc-shaped friction wheel, the first driven wheel on the drive shaft being connected to a first driving wheel on a first fixed shaft at the lower end of the slitting box via a first belt, a second friction wheel on the first fixed shaft being connected to a first friction wheel at the output end of a motor, and the motor being fixedly disposed at the bottom inner side of the U-shaped frame at the lower end of the slitting box.

[0010] In one alternative embodiment: the second drive assembly includes gears fixedly mounted on the rotating shafts at one end of the first and second transmission rollers. Several gears on the rotating shafts at one end of the first and second transmission rollers are connected by synchronous toothed belts. A third friction wheel on the rotating shaft of the first transmission roller near the slitting box is connected to a fourth friction wheel on the rotating shaft of the second transmission roller. A second driven wheel on the rotating shaft at the other end of the first transmission roller where the third friction wheel is located is connected to a second driving wheel on a second fixed shaft at the lower end of the slitting box via a second belt. An intermittent grooved wheel is fixedly mounted on the second fixed shaft, and a lever is fitted on the intermittent grooved wheel. The lever is fixedly mounted on the rotating disk at the output end of the motor.

[0011] In one optional embodiment: the cleaning mechanism includes a first cleaning box and a second cleaning box. The second cleaning box is fixedly installed on one side of the slitting box, corresponding to the position of the guide roller. The first cleaning box is fixedly installed on the upper end of the base plate, corresponding to the position of the second cleaning box. Both the first and second cleaning boxes have rotatable mounting rollers inside. Several electromagnets are fixedly installed inside the mounting rollers, with contact points at both ends of the electromagnets located outside the mounting rollers. Cleaning rollers are fitted inside the first and second cleaning boxes at positions corresponding to the mounting rollers. The mounting rollers are made of aluminum. Contact blocks are symmetrically arranged on the inner sides of both the first and second cleaning boxes. A fifth friction wheel is fixedly installed on the rotating shaft at one end of the mounting roller. A sixth friction wheel is fitted on the fifth friction wheel. The sixth friction wheel is fixedly installed on the rotating shaft at one end of the cleaning roller. A linkage component is provided on the rotating shaft at one end of the first transmission roller to facilitate the rotation of the mounting rollers inside the first and second cleaning boxes.

[0012] In one alternative embodiment: the linkage assembly includes a third driving wheel fixedly mounted on the rotating shaft at one end of the first transmission roller where the third friction wheel is located. The third driving wheel is connected to a third driven wheel on the rotating shaft at one end of the inner mounting roller of the second cleaning box via a third belt. A seventh friction wheel is fitted on the fifth friction wheel on the rotating shaft at one end of the inner mounting roller of the second cleaning box. The seventh friction wheel is fixedly mounted on the third fixed shaft at the lower end of the second cleaning box. A fourth driving wheel on the third fixed shaft is connected to a fourth driven wheel on the rotating shaft at one end of the inner mounting roller of the first cleaning box via a fourth belt.

[0013] In one alternative embodiment: the pushing mechanism includes fixed inclined blocks symmetrically disposed at the bottom end of the support plate. The inclined surface of the fixed inclined block is provided with a T-shaped groove. A T-shaped sliding rod is slidably disposed in the T-shaped groove. The T-shaped sliding rod is fixedly disposed on one side of the inclined surface of the second push block. The second push block is fixedly disposed at one end of the push plate. The push plate is slidably disposed in a rectangular through hole on one side of the lower end fixed plate of the slitting box. A first fixed push block is fitted at one end of the push plate. The first fixed push block is fixedly disposed at one end of the fixed frame. The other end of the fixed frame is fixedly disposed on one side of the friction plate. A second tension spring is fixedly disposed between one side of the fixed inclined block and one side of the fixed plate.

[0014] In one alternative: cleaning rods are fixedly installed inside both the first and second cleaning boxes at positions corresponding to the cleaning rollers.

[0015] In one alternative: both the first cleaning box and the second cleaning box are equipped with a collection box inside.

[0016] In one alternative: a plurality of damping springs are provided between the inner side of the fixing frame and the upper end of the cutting box.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. This invention utilizes a cleaning mechanism with several electromagnets installed inside the mounting roller. When the mounting roller rotates, it drives the electromagnets to rotate as well. When the contacts at both ends of the electromagnets are in close contact with the output end of the contact block, the electromagnets can clean iron foreign objects from the surface of the battery foil. When the contacts at both ends of the electromagnets move away from the output end of the contact block, the magnetic force of the electromagnets disappears where the iron foreign objects were attracted, causing the iron foreign objects to fall into the collection box. Simultaneously, the cleaning roller cleans both the mounting roller and the surface of the aluminum foil strip, increasing the practicality of the battery foil slitting equipment. This invention, by installing several electromagnets inside the mounting roller, solves the problem that existing iron removal devices are inconvenient for cleaning iron foreign objects, and that iron foreign objects can damage the aluminum foil strip during use.

[0019] 2. The present invention uses a pushing mechanism to facilitate the movement of the blade when cutting the aluminum foil strip, thereby assisting the blade in cutting and preventing the support plate from scratching or damaging the aluminum foil strip when it moves. This increases the practicality of the battery foil cutting equipment. At the same time, by setting several first and second transmission rollers inside the cutting box, the aluminum foil strip is easily transported, solving the problem of blade slippage during the cutting process when the aluminum foil strip extends a long distance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the second transmission roller structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the internal structure of the slitting box of the present invention.

[0023] Figure 4 This is a schematic diagram of the contact block installation of the present invention.

[0024] Figure 5 This is a schematic diagram of the electromagnet installation of the present invention.

[0025] Figure 6 This is a schematic diagram of the fixed inclined block and the second push block structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the intermittent grooved wheel structure of the present invention.

[0027] Figure reference numerals: 11 Cutting box, 12 First transfer roller, 13 Second transfer roller, 14 Synchronous toothed belt, 15 Base plate, 16 Blade, 17 Friction plate, 18 First tension spring, 19 Damping spring, 20 Fixing frame, 21 Arc-shaped friction wheel, 22 Support plate, 23 Fixing inclined block, 24 Push plate, 25 Second push block, 26 Second tension spring, 27 Second friction wheel, 28 Motor, 29 First cleaning box, 30 Mounting roller, 31 Electromagnet, 32 Contact block, 33 Cleaning roller, 34 Intermittent grooved wheel, 35 Third friction wheel, 36 Second cleaning box, 37 Guide roller. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In one embodiment, such as Figures 1-7 As shown, a battery foil slitting device with an iron removal structure includes several first transmission rollers 12 and blades 16. A friction plate 17 is fixedly mounted on the upper end of each blade 16. The friction plate 17 is slidably disposed within a mounting hole on the upper end of a slitting box 11. The slitting box 11 is fixedly mounted on the upper end of a base plate 15. Several first tension springs 18 are provided between the upper end of each blade 16 and the upper interior of the slitting box 11. An arc-shaped friction wheel 21 is fitted on one side of each friction plate 17. The two ends of the arc-shaped friction wheel 21 have rotating shafts rotatably disposed within mounting holes on one side of a rotating plate on the upper end of the slitting box 11. A first driving assembly is provided at the bottom of the slitting box 11 to facilitate the rotation of the arc-shaped friction wheel 21. A support is fitted in a mounting groove at the bottom inner side of the slitting box 11 corresponding to the position of the blade 16. A support plate 22 and several first transmission rollers 12 are arranged in a rectangular array and rotated inside the slitting box 11. Several second transmission rollers 13 are rotatably arranged inside the slitting box 11 at positions corresponding to the first transmission rollers 12. The bottom end of the slitting box 11 is provided with a second drive assembly to facilitate the rotation of several first transmission rollers 12 and second transmission rollers 13. Several guide rollers 37 are rotatably arranged on the mounting frame at the upper end of the base plate 15. The upper end of the base plate 15 is provided with a cleaning mechanism at positions corresponding to the guide rollers 37 to facilitate the cleaning of iron foreign objects on the surface of the battery foil. The lower end of the slitting box 11 is provided with a pushing mechanism to facilitate the movement of the support plate 22. The cleaning mechanism facilitates the cleaning of iron foreign objects on the surface of the battery foil, and the pushing mechanism facilitates the movement of the support plate 22.

[0030] The first drive assembly includes a first driven wheel fixedly mounted at one end of a drive shaft. The drive shaft is fixedly mounted on a rotating shaft at one end of an arc-shaped friction wheel 21. The first driven wheel on the drive shaft is connected to a first driving wheel on a first fixed shaft at the lower end of the slitting box 11 via a first belt. A second friction wheel 27 on the first fixed shaft is connected to a first friction wheel at the output end of a motor 28. The motor 28 is fixedly mounted at the bottom of the inner side of the U-shaped frame at the lower end of the slitting box 11. In use, the motor 28 is started, and the output end of the motor 28 drives the first fixed shaft to rotate via the first friction wheel. The first fixed shaft drives the drive shaft to rotate via the first driving wheel, and the drive shaft drives the arc-shaped friction wheel 21 to rotate. When the arc-shaped friction wheel 21 contacts one side of the friction plate 17, the arc-shaped friction wheel 21 drives the friction plate 17 to move along the length of the friction plate 17. At the same time, the blade 16 cuts the battery foil. When the arc-shaped friction wheel 21 disengages from one side of the friction plate 17, the blade 16 returns to its initial position under the action of the first tension spring 18.

[0031] The second drive assembly includes gears fixedly mounted on the rotating shafts at one end of the first transmission roller 12 and the second transmission roller 13. Several gears on the rotating shafts at one end of the first transmission roller 12 and the second transmission roller 13 are connected by a synchronous toothed belt 14. A third friction wheel on the rotating shaft of the first transmission roller 12 near the slitting box 11 is connected to a fourth friction wheel on the rotating shaft of the second transmission roller 13. A second driven wheel on the rotating shaft at the other end of the first transmission roller 12, where the third friction wheel is located, is connected by a second belt to a second driving wheel on a second fixed shaft at the lower end of the slitting box 11. An intermittent grooved wheel 3 is fixedly mounted on the second fixed shaft. 4. A lever is provided on the intermittent grooved wheel 34. The lever is fixed on the rotating disk at the output end of the motor 28. In use, the output end of the motor 28 drives the rotating disk to rotate. The lever follows the rotation of the rotating disk and, at the same time, cooperates with the intermittent grooved wheel 34 to drive the second fixed shaft to rotate intermittently. When the second fixed shaft rotates, it drives a first transmission roller 12 to rotate through the second drive wheel. The first transmission roller 12 rotates through friction between the third friction wheel and the fourth friction wheel, driving a second transmission roller 13 to rotate. The first transmission roller 12 and the second transmission roller 13 drive several first transmission rollers 12 and second transmission rollers 13 to rotate synchronously through the synchronous toothed belt 14.

[0032] The cleaning mechanism includes a first cleaning box 29 and a second cleaning box 36. The second cleaning box 36 is fixedly mounted on one side of the slitting box 11, corresponding to the position of the guide roller 37. The first cleaning box 29 is fixedly mounted on the upper end of the base plate 15, corresponding to the position of the second cleaning box 36. Both the first cleaning box 29 and the second cleaning box 36 have rotatably mounted mounting rollers 30 inside. Several electromagnets 31 are fixedly mounted inside the mounting rollers 30, with contact points at both ends of the electromagnets 31 located outside the mounting rollers 30. Cleaning rollers 33 are fitted inside the first cleaning box 29 and the second cleaning box 36 at positions corresponding to the mounting rollers 30. The mounting rollers 30 are made of aluminum. Contact blocks 32 are symmetrically arranged on the inner sides of both the first cleaning box 29 and the second cleaning box 36. A fifth friction wheel is fixedly mounted on one end of the rotating shaft of the mounting roller 30, and a sixth friction wheel is fitted on the fifth friction wheel. The sixth friction wheel is fixedly mounted on one end of the rotating shaft of the cleaning roller 33. A mounting roller 33 is mounted on one end of the rotating shaft of the first transmission roller 12. The linkage assembly facilitates the rotation of the mounting rollers 30 inside the first cleaning box 29 and the second cleaning box 36. In use, one end of the aluminum foil strip is guided by two guide rollers 37 and passes between the first transmission roller 12 and the second transmission roller 13 inside the slitting box 11. The input end of the contact block 32 is connected to an external power source. Then, the linkage assembly drives the mounting roller 30 to rotate. When the mounting roller 30 rotates, it drives several electromagnets 31 to rotate. When the contacts at both ends of the electromagnet 31 contact the output end of the contact block 32, the electromagnet 31 generates magnetic force. The mounting roller 30 inside the first cleaning box 29 can attract iron foreign objects at the lower end of the aluminum foil board, and the mounting roller 36 inside the second cleaning box 36 can attract iron foreign objects at the upper end of the aluminum foil strip. When the contacts at both ends of the electromagnet 31 are separated from the output end of the contact block 32, the magnetic force of the electromagnet 31 disappears. Then, the foreign objects attracted by the electromagnet 31 fall into the first cleaning box 29 and the mounting roller 30. At the same time, the cleaning roller 33 can clean the mounting roller 30 and the surface of the aluminum foil strip.

[0033] The linkage assembly includes a third driving wheel fixedly mounted on the rotating shaft at one end of the first transmission roller 12, where the third friction wheel is located. The third driving wheel is connected to a third driven wheel on the rotating shaft at one end of the inner mounting roller 30 of the second cleaning box 36 via a third belt. A seventh friction wheel is fitted on the fifth friction wheel on the rotating shaft at one end of the inner mounting roller 30 of the second cleaning box 36. The seventh friction wheel is fixed on the third fixed shaft at the lower end of the second cleaning box 36. A fourth driving wheel on the third fixed shaft is connected to a fourth driven wheel on the rotating shaft at one end of the inner mounting roller 30 of the first cleaning box 29 via a fourth belt. In use, when the first transmission roller 12 rotates, it drives the third driving wheel to rotate. The third driving wheel drives the inner mounting roller 30 of the second cleaning box 36 to rotate via the third belt. The fifth and seventh friction wheels on the rotating shaft at one end of the inner mounting roller 30 of the second cleaning box 36 cooperate to drive the third fixed shaft to rotate. The third rotating shaft drives the inner mounting roller 30 of the first cleaning box 29 to rotate via the fourth belt.

[0034] The pushing mechanism includes fixed inclined blocks 23 symmetrically arranged at the bottom end of the support plate 22. A T-shaped groove is provided on the inclined surface of the fixed inclined block 23, and a T-shaped sliding rod is slidably arranged within the T-shaped groove. The T-shaped sliding rod is fixedly arranged on one side of the inclined surface of the second push block 25. The second push block 25 is fixedly arranged at one end of the push plate 24. The push plate 24 is slidably arranged in a rectangular through hole on one side of the lower end fixing plate of the cutting box 11. A first fixed push block is fitted at one end of the push plate 24. The first fixed push block is fixedly arranged at one end of the fixing frame 20, and the other end of the fixing frame 20 is fixedly arranged on one side of the friction plate 17. A second tension spring 26 is fixed between one side of the fixed inclined block 23 and one side of the fixed plate. In use, when the arc-shaped friction wheel 21 drives the blade 16 to cut the aluminum foil strip through the friction plate 17, the friction plate 17 drives the fixed frame 20 to move. The inclined surface of the first fixed push block at one end of the fixed frame 20 contacts one end of the push plate 24 and pushes the push plate 24 to move. The push plate 24 drives the second push block 25 to move. The inclined surface of one side of the second push block 25 cooperates with the inclined surface of one side of the fixed inclined block 23, pushing the support plate 22 to move inside the cutting box 11. The aluminum foil strip is cut by the cooperation of the blade 16 and the support plate 22.

[0035] The first cleaning box 29 and the second cleaning box 36 are both equipped with cleaning rods at positions corresponding to the cleaning roller 33, which facilitates the cleaning of foreign objects attached to the cleaning roller 33 during use.

[0036] Both the first cleaning box 29 and the second cleaning box 36 are equipped with collection boxes inside, which facilitates the collection of foreign objects after cleaning during use.

[0037] Several damping springs 19 are provided between the inner side of the fixing frame 20 and the upper end of the cutting box 11 to reduce the vibration generated when the blade 16 returns to the initial position during use.

[0038] The above embodiment discloses a battery foil slitting device with an iron removal structure. One end of the aluminum foil strip is guided by two guide rollers 37 and passes through the space between the first transmission roller 12 and the second transmission roller 13 inside the slitting box 11. The motor 28 is started, and its output drives a rotating disk. A lever follows the rotation of the rotating disk and simultaneously engages with an intermittent grooved wheel 34 to intermittently rotate a second fixed shaft. When the second fixed shaft rotates, it drives one of the first transmission rollers 12 to rotate via a second drive wheel. The first transmission roller 12 rotates through friction between a third friction wheel and a fourth friction wheel, driving one of the second transmission rollers 13 to rotate. The first transmission rollers 12 and 13 rotate synchronously through a synchronous toothed belt 14, driving several of the first transmission rollers 12 and 13 to rotate synchronously. The first transmission rollers 12 and the second transmission rollers 13 rotate in opposite directions to transport the aluminum foil strip. When the first transmission rollers 12 rotate, they drive the third drive wheel to rotate. The third drive wheel, via a third belt, drives the internal mounting roller 30 of the second cleaning box 36 to rotate. The fifth friction wheel and the seventh friction wheel on one end of the rotating shaft of the internal mounting roller 30 of the second cleaning box 36 cooperate to drive the third fixed rotating shaft to rotate. The third rotating shaft, via a fourth belt, drives the internal mounting roller 30 of the first cleaning box 29 to rotate. Simultaneously, the input end of the contact block 32 is connected to an external power source. When the mounting roller 30 rotates, it drives several electromagnets 31 to rotate. When the contacts at both ends of the electromagnets 31 contact the output end of the contact block 32, the electromagnets 31 generate magnetic force, causing the internal mounting roller 30 of the first cleaning box 29 to rotate. The second cleaning box 36 can adsorb iron foreign objects at the lower end of the aluminum foil sheet. The roller 30 installed inside can adsorb iron foreign objects at the upper end of the aluminum foil strip. When the contacts at both ends of the electromagnet 31 are separated from the output end of the contact block 32, the magnetic force of the electromagnet 31 disappears, and the foreign objects adsorbed by the electromagnet 31 fall into the collection box. At the same time, the cleaning roller 33 can clean the surface of the mounting roller 30 and the aluminum foil strip. When the intermittent groove wheel 34 stops rotating, the output end of the motor 28 drives the first fixed shaft to rotate through the first friction wheel. The first fixed shaft drives the transmission shaft to rotate through the first drive wheel. The transmission shaft drives the arc-shaped friction wheel 21 to rotate. When the arc-shaped friction wheel 21 contacts one side of the friction plate 17, the arc-shaped friction wheel 21 drives the friction plate 17 to move along the length direction of the friction plate 17. When the friction plate 17 moves, the fixed frame 20 moves. The inclined surface of the first fixed push block at one end of the fixed frame 20 contacts one end of the push plate 24 and pushes the push plate 24 to move. The push plate 24 drives the second push block 25 to move. The inclined surface of one side of the second push block 25 cooperates with the inclined surface of one side of the fixed inclined block 23, pushing the support plate 22 to move inside the slitting box 11. The aluminum foil strip is slit by the cooperation of the blade 16 and the support plate 22. Then, the arc-shaped friction wheel 21 disengages from one side of the friction plate 17. Under the action of the first tension spring 18 and the second tension spring 26, the blade 16 and the support plate 22 return to the initial position. At the same time, the lever drives the first transmission roller 12 and the second transmission roller 13 to rotate again through the intermittent groove wheel 34, thereby conveying the slit battery foil out from one end of the slitting box 11.

[0039] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A battery foil slitting device with an iron removal structure, comprising a plurality of first transmission rollers (12) and blades (16), wherein a friction plate (17) is fixedly provided on the upper end of the blades (16), the friction plate (17) is slidably disposed in the mounting hole at the upper end of the slitting box (11), the slitting box (11) is fixedly disposed on the upper end of the base plate (15), and a plurality of first tension springs (18) are provided between the upper end of the blades (16) and the upper end of the interior of the slitting box (11), characterized in that, An arc-shaped friction wheel (21) is fitted on one side of the friction plate (17). The two ends of the arc-shaped friction wheel (21) are rotatably mounted in the mounting holes on one side of the upper rotating plate of the slitting box (11). The bottom of the slitting box (11) is provided with a first driving assembly to facilitate the rotation of the arc-shaped friction wheel (21). A support plate (22) is fitted in the mounting groove at the bottom inner side of the slitting box (11) corresponding to the position of the blade (16). Several first transmission rollers (12) are arranged in a rectangular array and rotated inside the slitting box (11). The interior of the slitting box (11) is connected to the... A number of second transmission rollers (13) are rotatably provided at the position corresponding to the first transmission roller (12). The bottom end of the slitting box (11) is provided with a second driving component that facilitates the rotation of the number of first transmission rollers (12) and second transmission rollers (13). A number of guide rollers (37) are rotatably provided on the mounting frame at the upper end of the base plate (15). The upper end of the base plate (15) is provided with a cleaning mechanism that facilitates the cleaning of iron foreign objects on the surface of the battery foil at the position corresponding to the guide rollers (37). The lower end of the slitting box (11) is provided with a pushing mechanism that facilitates the movement of the support plate (22). The first drive assembly includes a first driven wheel fixedly mounted at one end of a drive shaft. The drive shaft is fixedly mounted on a rotating shaft at one end of an arc-shaped friction wheel (21). The first driven wheel on the drive shaft is connected to a first driving wheel on a first fixed shaft at the lower end of the slitting box (11) via a first belt. A second friction wheel (27) on the first fixed shaft is connected to a first friction wheel at the output end of a motor (28). The motor (28) is fixedly mounted at the bottom of the inner side of the U-shaped frame at the lower end of the slitting box (11). The second drive assembly includes gears fixedly mounted on the rotating shafts at one end of the first transmission roller (12) and the second transmission roller (13). Several gears on the rotating shafts at one end of the first transmission roller (12) and the second transmission roller (13) are connected by a synchronous toothed belt (14). A third friction wheel on the rotating shaft of the first transmission roller (12) near the slitting box (11) is connected to a fourth friction wheel on the rotating shaft of the second transmission roller (13). A second driven wheel on the rotating shaft at the other end of the first transmission roller (12) where the third friction wheel is located is connected to a second driving wheel on the second fixed shaft at the lower end of the slitting box (11) via a second belt. An intermittent grooved wheel (34) is fixedly mounted on the second fixed shaft. A lever is mounted on the intermittent grooved wheel (34). The lever is fixedly mounted on the rotating disk at the output end of the motor (28). The cleaning mechanism includes a first cleaning box (29) and a second cleaning box (36). The second cleaning box (36) is fixedly installed on one side of the cutting box (11) at a position corresponding to the guide roller (37). The first cleaning box (29) is fixedly installed on the upper end of the base plate (15) at a position corresponding to the second cleaning box (36). Both the first cleaning box (29) and the second cleaning box (36) have rotatably mounted mounting rollers (30) inside. Several electromagnets (31) are fixedly installed inside the mounting rollers (30). The contacts at both ends of the electromagnets (31) are located outside the mounting rollers (30). The first cleaning box (29) and the second cleaning box (36) are... A cleaning roller (33) is provided inside the box (36) at a position corresponding to the mounting roller (30). The mounting roller (30) is made of aluminum. Contact blocks (32) are symmetrically provided on the inner sides of the first cleaning box (29) and the second cleaning box (36). A fifth friction wheel is fixedly provided on the rotating shaft at one end of the mounting roller (30). A sixth friction wheel is provided on the fifth friction wheel. The sixth friction wheel is fixedly provided on the rotating shaft at one end of the cleaning roller (33). A linkage component is provided on the rotating shaft at one end of the first transmission roller (12) to facilitate the rotation of the mounting roller (30) inside the first cleaning box (29) and the second cleaning box (36). The pushing mechanism includes fixed inclined blocks (23) symmetrically arranged at the bottom of the support plate (22). The inclined surface of the fixed inclined block (23) is provided with a T-shaped groove. A T-shaped sliding rod is slidably arranged in the T-shaped groove. The T-shaped sliding rod is fixedly arranged on one side of the inclined surface of the second push block (25). The second push block (25) is fixedly arranged at one end of the push plate (24). The push plate (24) is slidably arranged in a rectangular through hole on one side of the lower end fixing plate of the cutting box (11). One end of the push plate (24) is fitted with a first fixed push block. The first fixed push block is fixedly arranged at one end of the fixing frame (20). The other end of the fixing frame (20) is fixedly arranged on one side of the friction plate (17). A second tension spring (26) is fixedly arranged between one side of the fixed inclined block (23) and one side of the fixing plate.

2. The battery foil slitting device with an iron removal structure according to claim 1, characterized in that, The linkage assembly includes a third driving wheel fixedly mounted on the rotating shaft of the first transmission roller (12) at one end of the third friction wheel. The third driving wheel is connected to the third driven wheel on the rotating shaft of the inner side mounting roller (30) of the second cleaning box (36) via a third belt. A seventh friction wheel is provided on the fifth friction wheel on the rotating shaft of the inner side mounting roller (30) of the second cleaning box (36). The seventh friction wheel is fixedly mounted on the third fixed shaft at the lower end of the second cleaning box (36). A fourth driving wheel on the third fixed shaft is connected to the fourth driven wheel on the rotating shaft of the inner side mounting roller (30) of the first cleaning box (29) via a fourth belt.

3. The battery foil slitting device with an iron removal structure according to claim 1, characterized in that, Cleaning rods are fixedly provided inside the first cleaning box (29) and the second cleaning box (36) at positions corresponding to the cleaning roller (33).

4. The battery foil slitting device with an iron removal structure according to claim 1, characterized in that, The first cleaning box (29) and the second cleaning box (36) are both equipped with collection boxes.

5. A battery foil slitting device with an iron removal structure according to claim 1, characterized in that, Several damping springs (19) are provided between the inner side of the fixing frame (20) and the upper end of the cutting box (11).

6. A method of using a battery foil slitting device with an iron removal structure as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Guide one end of the aluminum foil strip through two guide rollers (37) and pass it through the first transmission roller (12) and the second transmission roller (13) inside the slitting box (11). Start the motor (28), and drive one first transmission roller (12) to rotate through the lever and the intermittent groove wheel (34). The first transmission roller (12) drives one second transmission roller (13) to rotate. The first transmission roller (12) and the second transmission roller (13) drive several first transmission rollers (12) and second transmission rollers (13) to rotate synchronously through the synchronous toothed belt (14). Several first transmission rollers (12) and second transmission rollers (13) transport the aluminum foil strip. Step 2: When the mounting roller (30) rotates, it drives several electromagnets (31) to rotate. When the contacts at both ends of the electromagnet (31) contact the output end of the contact block (32), the electromagnets (31) inside the two mounting rollers (30) can attract iron foreign objects on the upper and lower ends of the aluminum foil. When the contacts at both ends of the electromagnet (31) are separated from the output end of the contact block (32), the magnetic force of the electromagnet (31) disappears, and then the foreign objects attracted by the electromagnet (31) fall into the collection box. At the same time, under the action of the cleaning roller (33), the mounting roller (30) and the aluminum foil can be cleaned. The surface is cleaned; Step 3: The output end of the motor (28) drives the arc-shaped friction wheel (21) to rotate through the transmission shaft. The arc-shaped friction wheel (21) contacts one side of the friction plate (17) and drives the fixed frame (20) to move. The first fixed push block at one end of the fixed frame (20) pushes the push plate (24) to move. The push plate (24) pushes the support plate (22) to move inside the slitting box (11) through the second push block (25) and the fixed inclined block (23). The aluminum foil strip is slit by the cooperation of the blade (16) and the support plate (22).

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