A pole piece thinning process and device based on screw mechanism

Abstract

The application discloses a kind of based on screw mechanism's pole piece thinning process and equipment, wherein pole piece thinning process includes: screw mechanism feeding, pole piece forming, pair of roll thinning, three-roll thinning;Pole piece thinning equipment includes screw mechanism, die head, pair of roll thinning mechanism, tension detection mechanism, swing roll adjusting mechanism and three-roll thinning mechanism, screw mechanism is used to deliver pole piece raw material to die head, die head is used to form pole piece raw material and output pole piece to outside, pair of roll thinning mechanism is used to carry out first thinning processing to pole piece, tension detection mechanism is used to detect the tension of pole piece, swing roll adjusting mechanism includes swing roll and can adjust the tension of pole piece by swing roll, three-roll thinning mechanism can be by first mobile steel roller, second mobile steel roller and intermediate steel roller twice thinning to pole piece.This kind of based on screw mechanism's pole piece thinning process and equipment have the advantages such as simple process and equipment, easy operation, when practical application, can improve production efficiency, improve product quality.

Description

Technical Field

[0001] This invention relates to the field of lithium battery electrode processing, and in particular to an electrode thinning process and equipment based on a screw mechanism. Background Technology

[0002] In the lithium battery industry, the electrode sheet is a core component. The existing electrode sheet processing process suffers from problems such as complex technology, low production efficiency, difficulty in controlling electrode sheet quality, and low yield rate, which seriously affect the production efficiency and product quality of lithium batteries and are not conducive to improving the industry level and the production efficiency of enterprises.

[0003] Therefore, the purpose of this invention is to provide a new technical solution to overcome the existing technical deficiencies. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an electrode thinning process and equipment based on a screw mechanism, which solves the technical defects of the prior art, such as complex process and equipment, low electrode production efficiency, troublesome electrode tension control, high labor and time costs, and poor application flexibility and versatility.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] An electrode thinning process based on a screw mechanism includes the following steps:

[0007] Step S1: Screw mechanism feeding, using a screw mechanism to transport the electrode material to the die head;

[0008] Step S2, electrode forming, using a die to form the electrode raw material fed into the die into a primary electrode;

[0009] Step S3, roller thinning: The primary electrode sheet sent out by the die head is thinned for the first time using a roller thinning mechanism to obtain the intermediate electrode sheet;

[0010] Step S4, three-roll thinning: the intermediate electrode sheet that has undergone the first thinning process is subjected to a second thinning process using a three-roll thinning mechanism to obtain the finished electrode sheet.

[0011] As a further improvement to the above technical solution, in step S1, the screw mechanism includes a twin-screw mixing mechanism and a single-screw feeding mechanism. The electrode raw material is fed into the twin-screw mixing mechanism for mixing. After mixing, the electrode raw material is fed from the twin-screw mixing mechanism into the single-screw feeding mechanism. The single-screw feeding mechanism feeds the electrode raw material into the die head through the die head connecting pipe.

[0012] As a further improvement to the above technical solution, a tension detection mechanism and a swing roller adjustment mechanism are set between step S2 and step S3. The tension detection mechanism detects the tension of the electrode sheet, and the swing roller adjustment mechanism adjusts the tension of the electrode sheet.

[0013] The present invention also provides:

[0014] An electrode thinning device based on a screw mechanism includes a screw mechanism, a die head, a roller thinning mechanism, a tension detection mechanism, a swing roller adjustment mechanism, and a three-roller thinning mechanism. The screw mechanism is used to convey electrode raw materials to the die head, and the die head is used to form the electrode raw materials and output the electrode sheets. The roller thinning mechanism includes a fixed roller assembly and a movable roller assembly, and can perform a first thinning process on the electrode sheets sent out by the die head through the fixed roller assembly and the movable roller assembly. The tension detection mechanism is used to detect the tension of the electrode sheets. The swing roller adjustment mechanism includes a swing roller and can adjust the tension of the electrode sheets through the swing roller. The three-roller thinning mechanism includes a first moving steel roller, a second moving steel roller, and an intermediate steel roller, and can perform a second thinning process on the electrode sheets through the first moving steel roller, the second moving steel roller, and the intermediate steel roller.

[0015] As a further improvement to the above technical solution, the screw mechanism includes a twin-screw mixing mechanism and a single-screw feeding mechanism connected in series with the twin-screw mixing mechanism. The twin-screw mixing mechanism is used to mix the electrode raw materials and feed the mixed electrode raw materials into the single-screw feeding mechanism. The single-screw feeding mechanism is connected to the die head through a die head connecting pipe and is used to feed the electrode raw materials from the twin-screw mixing mechanism into the die head.

[0016] As a further improvement to the above technical solution, the roller thinning mechanism includes a roller mechanism frame, on which a fixed roller mounting seat and a movable roller guide rail are provided. A movable roller mounting seat is provided on the movable roller guide rail, a fixed roller assembly is provided on the fixed roller mounting seat, and a movable roller assembly is provided on the movable roller mounting seat. A movable roller lifting cylinder is also provided on the roller mechanism frame. The output end of the movable roller lifting cylinder is connected to the movable roller mounting seat and can drive the movable roller assembly to move up and down through the movable roller mounting seat.

[0017] As a further improvement to the above technical solution, the fixed roller assembly includes a fixed roller mounted on a fixed roller mounting base and a fixed roller drive motor for driving the fixed roller. The output end of the fixed roller drive motor is provided with a fixed roller reducer and can drive the fixed roller to rotate through the fixed roller reducer.

[0018] As a further improvement to the above technical solution, the movable roller assembly includes a movable roller mounted on a movable roller mounting base and a movable roller drive motor for driving the movable roller. The output end of the movable roller drive motor is provided with a movable roller reducer, which can drive the movable roller to rotate.

[0019] As a further improvement to the above technical solution, the roller mechanism frame is also provided with a wedge block screw nut pair and a wedge block drive motor. The nut of the wedge block screw nut pair is provided with a wedge block located between the fixed roller mounting seat and the movable roller mounting seat. The output end of the wedge block drive motor is connected to one end of the screw of the wedge block screw nut pair through a coupling and can drive the wedge block to move linearly through the wedge block screw nut pair to adjust the gap size between the movable roller assembly and the fixed roller assembly.

[0020] As a further improvement to the above technical solution, a movable roller lifting scale is provided on the side of the roller mechanism frame, and a movable roller lifting scale pointer that cooperates with the movable roller lifting scale is provided on the movable roller mounting base. A movable roller lifting micrometer is also provided on the side of the roller mechanism frame.

[0021] The movable roller mounting base is mounted on the movable roller guide rail via the movable roller guide rail base, and the output end of the movable roller lifting cylinder is connected to the movable roller mounting base via the cylinder connector.

[0022] As a further improvement to the above technical solution, there are two fixed roller mounting seats, the fixed roller assembly is mounted on the two fixed mounting seats, there are two movable roller mounting seats, the movable roller assembly is mounted on the two movable roller assemblies, and there are two movable roller lifting cylinders, which are respectively connected to the two movable roller mounting seats.

[0023] As a further improvement to the above technical solution, the roller mechanism frame includes a frame base plate, a frame top plate, and frame columns connecting the frame base plate and the frame top plate. The frame columns are arranged in pairs, the movable roller guide rail is arranged inside the paired frame columns, and the fixed roller mounting seat and the movable roller mounting seat are both arranged between the paired frame columns.

[0024] As a further improvement to the above technical solution, the three-roll thinning mechanism includes a three-roll mechanism mounting frame and an intermediate steel roller, a first steel roller moving guide rail, and a second steel roller moving guide rail mounted on the three-roll mechanism mounting frame. A first steel roller mounting seat and a second steel roller mounting seat are respectively provided on the first steel roller moving guide rail and the second steel roller moving guide rail. The first moving steel roller is mounted on the first steel roller mounting seat, and the second moving steel roller is mounted on the second steel roller mounting seat. A first steel roller driving device and a second steel roller driving device are respectively mounted on both sides of the three-roll mechanism mounting frame. The output end of the first steel roller driving device is connected to the first steel roller mounting seat and can drive the first moving steel roller to slide on the first steel roller moving guide rail. The output end of the second steel roller driving device is connected to the second steel roller mounting seat and can drive the second moving steel roller to slide on the second steel roller moving guide rail.

[0025] As a further improvement to the above technical solution, the first moving steel roller, the second moving steel roller, and the intermediate steel roller are parallel to each other and their central axes are located in the same plane. The first moving steel roller and the second moving steel roller are located on both sides of the intermediate steel roller.

[0026] As a further improvement to the above technical solution, the first steel roller drive device is a first hydraulic cylinder, the second steel roller drive device is a second hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected to the first steel roller mounting base through the first connecting plate, and the output end of the second hydraulic cylinder is fixedly connected to the second steel roller mounting base through the second connecting plate.

[0027] As a further improvement to the above technical solution, a first steel roller load sensor is provided at the output end of the first hydraulic cylinder, and a second steel roller load sensor is provided at the output end of the second hydraulic cylinder. The first load sensor and the second load sensor are used to detect the load of the first moving steel roller and the second moving steel roller, respectively.

[0028] As a further improvement to the above technical solution, the three-roll mechanism mounting frame is also provided with a cutting device for use with the intermediate steel roll. The cutting device includes a cutting drive cylinder fixedly mounted on the three-roll mechanism mounting frame and a cutting mounting plate mounted on the output end of the cutting drive cylinder. An electrode cutter is mounted on the cutting mounting plate. The cutting drive cylinder can drive the electrode cutter to approach the intermediate steel roll and cut off the excess part of the electrode that passes over the intermediate steel roll through the electrode cutter.

[0029] As a further improvement to the above technical solution, the three-roll mechanism mounting frame is also provided with a scraper device for use with the intermediate steel roll. The scraper device includes a scraper drive cylinder fixedly mounted on the three-roll mechanism mounting frame and a scraper assembly mounted on the output end of the scraper drive cylinder. The scraper drive cylinder can drive the scraper assembly to approach the intermediate steel roll and use the scraper in the scraper assembly to scrape off the waste material on the intermediate steel roll.

[0030] As a further improvement to the above technical solution, the three-roll mechanism mounting frame is also provided with a tension roller mounting plate, the tension roller mounting plate is provided with a discharge tension sensor, and the discharge tension sensor is provided with a discharge tension roller.

[0031] As a further improvement to the above technical solution, the first steel roller mounting seat is mounted on the first steel roller moving guide rail via the first moving guide rail seat, the second steel roller mounting seat is mounted on the second steel roller moving guide rail via the second moving guide rail seat, and the intermediate steel roller is mounted on the three-roll mechanism mounting frame via the intermediate steel roller mounting seat.

[0032] As a further improvement to the above technical solution, a first displacement sensor is provided on the three-roll mechanism mounting frame, and a first displacement sensing plate is directly or indirectly installed on the first steel roller mounting seat. The first displacement sensor and the first displacement sensing plate are used to cooperate in sensing the moving distance of the first moving steel roller. A second displacement sensor is provided on the three-roll mechanism mounting frame, and a second displacement sensing plate is directly or indirectly installed on the second steel roller mounting seat. The second displacement sensor and the second displacement sensing plate are used to cooperate in sensing the moving distance of the second moving steel roller.

[0033] As a further improvement to the above technical solution, the tension detection mechanism includes a tension sensor and a tension roller mounted on the tension sensor;

[0034] As a further improvement to the above technical solution, the swing roller adjustment mechanism includes a swing roller adjustment base plate and a swing adjustment fixed roller, a swing adjustment guide roller, a movable pressure roller adjustment guide rail, a movable pressure roller drive cylinder, and a swing roller drive cylinder disposed on the swing roller adjustment base plate. A movable pressure roller seat is disposed on the movable pressure roller adjustment guide rail, and a movable pressure roller for use with the swing adjustment fixed roller is disposed on the movable pressure roller seat. The output end of the movable pressure roller drive cylinder is connected to the movable pressure roller seat and can drive the movable pressure roller seat and the movable pressure roller to slide on the movable pressure roller adjustment guide rail. A swing roller seat is disposed on the swing roller adjustment guide rail, and the swing roller is disposed on the swing roller seat. The output end of the swing roller drive cylinder is connected to the swing roller seat and can drive the swing roller seat and the swing roller to slide on the swing roller adjustment guide rail.

[0035] The beneficial effects of this invention are: This invention provides an electrode thinning process and equipment based on a screw mechanism. This electrode thinning process and equipment based on a screw mechanism can effectively improve the production efficiency of electrodes, and has greater flexibility and versatility in production. Electrode tension control is more convenient, which helps to improve the processing quality of electrodes, reduce labor and time costs, and improve the production efficiency of enterprises.

[0036] In summary, this electrode thinning process and equipment based on a screw mechanism solves the technical defects of existing technologies, such as complex processes and equipment, low electrode production efficiency, troublesome electrode tension control, high labor and time costs, and poor application flexibility and versatility. Attached Figure Description

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] Figure 1 This is a process flow diagram of the electrode thinning process based on the screw mechanism in this invention;

[0039] Figure 2 This is an assembly diagram of the electrode thinning device based on the screw mechanism in this invention;

[0040] Figure 3 This is an assembly diagram of the roller thinning mechanism in this invention;

[0041] Figure 4 This is another assembly schematic diagram of the roller thinning mechanism in this invention;

[0042] Figure 5 This is the third assembly schematic diagram of the roller thinning mechanism in this invention;

[0043] Figure 6 This is an assembly diagram of the three-roll thinning mechanism in this invention;

[0044] Figure 7 This is an assembly diagram of the tension detection mechanism in this invention;

[0045] Figure 8 This is an assembly diagram of the swing roller adjustment mechanism in this invention;

[0046] Figure 9 This is another assembly diagram of the swing roller adjustment mechanism in this invention. Detailed Implementation

[0047] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other, as described above. Figure 1 _9.

[0048] Specific reference Figure 1 ,

[0049] An electrode thinning process based on a screw mechanism includes the following steps:

[0050] Step S1: The screw mechanism feeds the material, using screw mechanism 1 to transport the electrode material to die head 2;

[0051] Step S2, electrode forming, using die head 2 to form the electrode raw material fed into the die head into a primary electrode;

[0052] Step S3, roller thinning: The primary electrode sheet sent out by the die head 2 is thinned for the first time using the roller thinning mechanism 3 to obtain the intermediate electrode sheet;

[0053] Step S4, three-roll thinning: the three-roll thinning mechanism 4 is used to perform a second thinning process on the intermediate electrode sheet that has undergone the first thinning process to obtain the finished electrode sheet.

[0054] Preferably, in step S1, the screw mechanism 1 includes a twin-screw mixing mechanism 11 and a single-screw feeding mechanism 12. The electrode raw material is fed into the twin-screw mixing mechanism 11 for mixing. After mixing, the electrode raw material is fed from the twin-screw mixing mechanism 11 into the single-screw feeding mechanism 12. The single-screw feeding mechanism 12 feeds the electrode raw material into the die head 2 through the die head connecting pipe 21.

[0055] Preferably, between step S2 and step S3, a tension detection mechanism 5 and a swing roller adjustment mechanism 6 are provided. The tension detection mechanism 5 detects the tension of the electrode 9, and the swing roller adjustment mechanism 6 adjusts the tension of the electrode 9.

[0056] Reference Figure 2 _9. Based on the above-mentioned electrode thinning process based on a screw mechanism, the present invention also provides:

[0057] Specific reference Figure 2An electrode thinning device based on a screw mechanism includes a screw mechanism 1, a die head 2, a roller thinning mechanism 3, a tension detection mechanism 5, a swing roller adjustment mechanism 6, and a three-roller thinning mechanism 4. The screw mechanism 1 is used to convey electrode raw materials to the die head 2. The die head 2 is used to form the electrode raw materials and output electrode sheets 9. The roller thinning mechanism 3 includes a fixed roller assembly 32 and a movable roller assembly 33, and can perform a first thinning process on the electrode sheets 9 sent out by the die head 2 through the fixed roller assembly 32 and the movable roller assembly 33. The tension detection mechanism 5 is used to detect the tension of the electrode sheets 9. The swing roller adjustment mechanism 6 includes a swing roller 69, and can adjust the tension of the electrode sheets 9 through the swing roller 69. The three-roller thinning mechanism 4 includes a first moving steel roller 421, a second moving steel roller 422, and an intermediate steel roller 423, and can perform a second thinning process on the electrode sheets through the first moving steel roller 421, the second moving steel roller 422, and the intermediate steel roller 423.

[0058] The screw mechanism 1 includes a twin-screw mixing mechanism 11 and a single-screw feeding mechanism 12 connected in series with the twin-screw mixing mechanism 11. The twin-screw mixing mechanism 11 is used to mix the electrode raw materials and feed the mixed electrode raw materials into the single-screw feeding mechanism 12. The single-screw feeding mechanism 12 is connected to the die head 2 through the die head connecting pipe 21 and is used to feed the electrode raw materials fed by the twin-screw mixing mechanism 11 into the die head 2.

[0059] Reference Figure 3 , Figure 4 , Figure 5The roller thinning mechanism 3 includes a roller mechanism frame 31, on which a fixed roller mounting seat 311 and a movable roller guide rail 313 are provided, and a movable roller mounting seat 312 is provided on the movable roller guide rail 313. The roller mechanism frame 31 includes a frame base plate 3101, a frame top plate 3102, and frame columns 3103 connecting the frame base plate 3101 and the frame top plate 3102. The frame columns 3103 are arranged in pairs, and the movable roller guide rail 313 is located inside the paired frame columns 3103. The fixed roller mounting seat 311 and the movable roller mounting seat 312 are both located between the paired frame columns 3103. A fixed roller assembly 32 is provided on the fixed roller mounting base 311, and a movable roller assembly 33 is provided on the movable roller mounting base 312. A movable roller lifting cylinder 34 is also provided on the roller mechanism frame 31. Specifically, the movable roller mounting base 312 is mounted on the movable roller guide rail 313 via a movable roller guide rail seat 314. The output end of the movable roller lifting cylinder 34 is connected to the movable roller mounting base 312 via a cylinder connector 341. There are two fixed roller mounting bases 311, and the fixed roller assembly 32 is mounted on both fixed mounting bases 311. There are two movable roller mounting bases 312, and the movable roller assembly 33 is mounted on both movable roller assemblies 312. There are two movable roller lifting cylinders 34, each connected to one of the two movable roller mounting bases 312. The output end of the movable roller lifting cylinder 34 is connected to the movable roller mounting base 312 and can drive the movable roller assembly 33 to move up and down via the movable roller mounting base 312.

[0060] Preferably, the fixed roller assembly 32 includes a fixed roller 321 mounted on a fixed roller mounting base 311 and a fixed roller drive motor 322 for driving the fixed roller 321. The output end of the fixed roller drive motor 322 is provided with a fixed roller reducer 323, which can drive the fixed roller 321 to rotate. The movable roller assembly 33 includes a movable roller 331 mounted on a movable roller mounting base 312 and a movable roller drive motor 332 for driving the movable roller 331. The output end of the movable roller drive motor 332 is provided with a movable roller reducer 333, which can drive the movable roller 331 to rotate. The roller mechanism frame 31 is also provided with a wedge block screw nut pair 351 and a wedge block drive motor 352. The nut of the wedge block screw nut pair 351 is provided with a wedge block 353 located between the fixed roller mounting seat 311 and the movable roller mounting seat 312. The output end of the wedge block drive motor 352 is connected to one end of the screw of the wedge block screw nut pair 351 through a coupling 354 and can drive the wedge block 353 to move linearly through the wedge block screw nut pair 351 to adjust the gap size between the movable roller assembly 33 and the fixed roller assembly 32.

[0061] Preferably, the side of the roller mechanism frame 1 is provided with a movable roller lifting scale 361, the movable roller mounting base 312 is provided with a movable roller lifting scale pointer 362 that cooperates with the movable roller lifting scale 361, and the side of the roller mechanism frame 31 is also provided with a movable roller lifting micrometer 363.

[0062] In practical implementation of this invention, the electrode sheet passes through the gap between the fixed roller 321 and the movable roller 331, and the fixed roller 321 and the movable roller 331 are used to thin the electrode sheet. When different electrode sheets are being processed, the movable roller 331 is driven to rise by the movable roller lifting cylinder 34, and the wedge block drive motor 352 is used to drive the wedge block 353 to move to adjust the gap between the movable roller 331 and the movable roller 321. This allows the gap to be adjusted to a preset size, eliminating the need for extensive manpower and resources for disassembly and adjustment, and providing high application flexibility and versatility.

[0063] Reference Figure 6The three-roll thinning mechanism 4 includes a three-roll mechanism mounting frame 41 and an intermediate steel roll 423, a first steel roll moving guide rail 411, and a second steel roll moving guide rail 412 mounted on the three-roll mechanism mounting frame 41. The first steel roll moving guide rail 411 and the second steel roll moving guide rail 412 are respectively provided with a first steel roll mounting seat 441 and a second steel roll mounting seat 442. The first steel roll mounting seat 441 is mounted on the first steel roll moving guide rail 411 through a first moving guide rail seat 413, and the second steel roll mounting seat 442 is mounted on the second steel roll moving guide rail 412 through a second moving guide rail seat 414. The intermediate steel roll 423 is mounted on the three-roll mechanism mounting frame 41 through an intermediate steel roll mounting seat 447. A first movable steel roller 421 is mounted on the first steel roller mounting base 441, and a second movable steel roller 422 is mounted on the second steel roller mounting base 442. In this embodiment, the first movable steel roller 421, the second movable steel roller 422, and the intermediate steel roller 423 are parallel to each other and their central axes are located on the same plane. The first movable steel roller 421 and the second movable steel roller 422 are located on both sides of the intermediate steel roller 423. Specifically, a first displacement sensor 481 is provided on the three-roller mechanism mounting frame 41, and a first displacement sensing plate 483 is directly or indirectly mounted on the first steel roller mounting base 441. The first displacement sensor 481 and the first displacement sensing plate 483 are used to sense the moving distance of the first movable steel roller 421. A second displacement sensor is provided on the three-roller mechanism mounting frame 41, and a second displacement sensing plate 484 is directly or indirectly mounted on the second steel roller mounting base 442. The second displacement sensor and the second displacement sensing plate 484 are used to sense the moving distance of the second movable steel roller 422. The three-roll mechanism mounting frame 41 has a first steel roll drive device 491 and a second steel roll drive device 492 respectively mounted on both sides. The output end of the first steel roll drive device 491 is connected to the first steel roll mounting base 441 and can drive the first movable steel roll 421 to slide on the first steel roll moving guide rail 411. The output end of the second steel roll drive device 492 is connected to the second steel roll mounting base 442 and can drive the second movable steel roll 422 to slide on the second steel roll moving guide rail 412. In this embodiment, the first steel roll drive device 491 is a first hydraulic cylinder, and the second steel roll drive device 492 is a second hydraulic cylinder. The output end of the first hydraulic cylinder is fixedly connected to the first steel roll mounting base 441 through a first connecting plate 443, and the output end of the second hydraulic cylinder is fixedly connected to the second steel roll mounting base 442 through a second connecting plate 444. The output end of the first hydraulic cylinder is equipped with a first steel roller load sensor 445, and the output end of the second hydraulic cylinder is equipped with a second steel roller load sensor 446. The first load sensor 445 and the second load sensor 446 are used to detect the load of the first moving steel roller 421 and the second moving steel roller 422, respectively.The three-roll mechanism mounting frame 41 is also equipped with a cutting device for use with the intermediate steel roll 423. The cutting device includes a cutting drive cylinder 451 fixedly mounted on the three-roll mechanism mounting frame 41 and a cutting mounting plate mounted on the output end of the cutting drive cylinder 451. An electrode cutter 452 is mounted on the cutting mounting plate. The cutting drive cylinder 451 can drive the electrode cutter 452 to approach the intermediate steel roll 423 and pass the electrode cutter 452 to cut the electrode around the intermediate steel roll 423. The excess portion of the electrode sheet is cut off; the three-roll mechanism mounting frame 41 is equipped with a scraper device for use with the intermediate steel roller 423. The scraper device includes a scraper drive cylinder 461 fixedly mounted on the three-roll mechanism mounting frame 41 and a scraper assembly 462 mounted on the output end of the scraper drive cylinder 461. The scraper drive cylinder 461 can drive the scraper assembly 462 to approach the intermediate steel roller 423 and use the scraper in the scraper assembly 462 to scrape off the waste material on the intermediate steel roller 423. The three-roll mechanism mounting frame 41 is also equipped with a tension roller mounting plate 471, on which a discharge tension sensor 472 is mounted, and on which a discharge tension roller 473 is mounted.

[0064] In specific implementation of this invention, the first moving steel roller 421 cooperates with the intermediate steel roller 423 to perform the first thinning of the electrode sheet, and the second moving steel roller 422 cooperates with the intermediate steel roller 423 to perform the second thinning of the electrode sheet. The first moving steel roller 421 and the second moving steel roller 422 can be driven to move by the first steel roller drive device 491 and the second steel roller drive device 492 respectively, thereby adjusting the gap between the moving steel rollers and the intermediate steel roller 423. This allows for adaptation to different thickness requirements, automated adjustment, easy operation, reduced labor costs and adjustment difficulty, improved production efficiency, and better application flexibility and versatility.

[0065] Reference Figure 7 The tension detection mechanism 5 includes a tension sensor 51 and a tension roller 52 mounted on the tension sensor 51;

[0066] Reference Figure 8 , Figure 9The swing roller adjustment mechanism 6 includes a swing roller adjustment base plate 61 and a swing adjustment fixed roller 62, a swing adjustment guide roller 63, a movable pressure roller adjustment guide rail 64, a swing roller adjustment guide rail 65, a movable pressure roller drive cylinder 66, and a swing roller drive cylinder 67 disposed on the swing roller adjustment base plate 61. A movable pressure roller seat 641 is disposed on the movable pressure roller seat 641, and a movable pressure roller 68 is disposed on the movable pressure roller seat 641 for use with the swing adjustment fixed roller 62. The output end of the movable pressure roller drive cylinder 66 is connected to the movable pressure roller seat 641 and can drive the movable pressure roller seat 641 and the movable pressure roller 68 to slide on the movable pressure roller adjustment guide rail 64. A swing roller seat 651 is disposed on the swing roller adjustment guide rail 65, and a swing roller 69 is disposed on the swing roller seat 651. The output end of the swing roller drive cylinder 67 is connected to the swing roller seat 651 and can drive the swing roller seat 651 and the swing roller 69 to slide on the swing roller adjustment guide rail 65.

[0067] In the actual implementation of this invention, after the electrode 9 enters the swing roller adjustment mechanism 6, the swing roller drive cylinder 67 drives the swing roller 69 to move in the swing roller adjustment guide rail 65, thereby adjusting the tension of the electrode 9 and ensuring that the tension of the electrode 9 is within a suitable range.

[0068] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An electrode thinning process based on a screw mechanism, characterized in that, The process includes the following steps: Step S1, screw mechanism feeding, the screw mechanism (1) is used to transport the electrode material to the die head (2); Step S2, electrode forming, using a die (2) to form the electrode raw material fed into the die into a primary electrode; Step S3, roller thinning: The primary electrode sheet sent out by the die head (2) is thinned for the first time using the roller thinning mechanism (3) to obtain the intermediate electrode sheet; Step S4, three-roll thinning: the intermediate electrode sheet that has undergone the first thinning process is subjected to a second thinning process using a three-roll thinning mechanism (4) to obtain the finished electrode sheet; In this process, a cutting device is used to cut off the excess portion of the electrode sheet on the intermediate steel roller (423) of the three-roll thinning mechanism (4).

2. The electrode thinning process based on a screw mechanism according to claim 1, characterized in that: In step S1, the screw mechanism (1) includes a twin-screw mixing mechanism (11) and a single-screw feeding mechanism (12). The electrode raw material is fed into the twin-screw mixing mechanism (11) for mixing. After mixing, the electrode raw material is fed from the twin-screw mixing mechanism (11) into the single-screw feeding mechanism (12). The single-screw feeding mechanism (12) feeds the electrode raw material into the die head (2) through the die head connecting pipe (21).

3. The electrode thinning process based on a screw mechanism according to claim 1, characterized in that: Between step S2 and step S3, a tension detection mechanism (5) and a swing roller adjustment mechanism (6) are set up. The tension of the electrode (9) is detected by the tension detection mechanism (5), and the tension of the electrode (9) is adjusted by the swing roller adjustment mechanism (6).

4. An electrode thinning device based on a screw mechanism, characterized in that: The system includes a screw mechanism (1), a die head (2), a roller thinning mechanism (3), a tension detection mechanism (5), a swing roller adjustment mechanism (6), and a three-roller thinning mechanism (4). The screw mechanism (1) is used to convey the electrode material to the die head (2). The die head (2) is used to form the electrode material and output the electrode (9) to the outside. The roller thinning mechanism (3) includes a fixed roller assembly (32) and a movable roller assembly (33) and can be used to process the electrode delivered by the die head (2) through the fixed roller assembly (32) and the movable roller assembly (33). (9) Perform the first thinning process. The tension detection mechanism (5) is used to detect the tension of the electrode (9). The swing roller adjustment mechanism (6) includes a swing roller (69) and can adjust the tension of the electrode (9) through the swing roller (69). The three-roller thinning mechanism (4) includes a first moving steel roller (421), a second moving steel roller (422) and an intermediate steel roller (423) and can perform a second thinning of the electrode through the first moving steel roller (421), the second moving steel roller (422) and the intermediate steel roller (423). The three-roll thinning mechanism (4) includes a three-roll mechanism mounting frame (41), the intermediate steel roller (423) is mounted on the three-roll mechanism mounting frame (41), and the three-roll mechanism mounting frame (41) is also provided with a cutting device for use with the intermediate steel roller (423). The cutting device includes a cutting drive cylinder (451) fixedly mounted on the three-roll mechanism mounting frame (41) and a cutting mounting plate mounted on the output end of the cutting drive cylinder (451). An electrode cutter (452) is mounted on the cutting mounting plate. The cutting drive cylinder (451) can drive the electrode cutter (452) to approach the intermediate steel roller (423) and cut off the excess part of the electrode wrapped on the intermediate steel roller (423) through the electrode cutter (452).

5. The electrode thinning device based on a screw mechanism according to claim 4, characterized in that: The screw mechanism (1) includes a twin-screw mixing mechanism (11) and a single-screw feeding mechanism (12) connected in series with the twin-screw mixing mechanism (11). The twin-screw mixing mechanism (11) is used to mix the electrode raw materials and feed the mixed electrode raw materials into the single-screw feeding mechanism (12). The single-screw feeding mechanism (12) is connected to the die head (2) through the die head connecting pipe (21). The single-screw feeding mechanism (12) is used to feed the electrode raw materials fed by the twin-screw mixing mechanism (11) into the die head (2).

6. The electrode thinning device based on a screw mechanism according to claim 4, characterized in that: The roller thinning mechanism (3) includes a roller mechanism frame (31), on which a fixed roller mounting seat (311) and a movable roller guide rail (313) are provided. A movable roller mounting seat (312) is provided on the movable roller guide rail (313). A fixed roller assembly (32) is provided on the fixed roller mounting seat (311). A movable roller assembly (33) is provided on the movable roller mounting seat (312). A movable roller lifting cylinder (34) is also provided on the roller mechanism frame (31). The output end of the movable roller lifting cylinder (34) is connected to the movable roller mounting seat (312) and can drive the movable roller assembly (33) to move up and down through the movable roller mounting seat (312).

7. The electrode thinning device based on a screw mechanism according to claim 6, characterized in that: The fixed roller assembly (32) includes a fixed roller (321) mounted on a fixed roller mounting base (311) and a fixed roller drive motor (322) for driving the fixed roller (321). The output end of the fixed roller drive motor (322) is provided with a fixed roller reducer (323) and the fixed roller (321) can be driven to rotate by the fixed roller reducer (323). The movable roller assembly (33) includes a movable roller (331) mounted on a movable roller mounting base (312) and a movable roller drive motor (332) for driving the movable roller (331). The output end of the movable roller drive motor (332) is provided with a movable roller reducer (333) and can drive the movable roller (331) to rotate through the movable roller reducer (333). The roller mechanism frame (31) is also provided with a wedge block screw nut pair (351) and a wedge block drive motor (352). The nut of the wedge block screw nut pair (351) is provided with a wedge block (353) located between the fixed roller mounting seat (311) and the movable roller mounting seat (312). The output end of the wedge block drive motor (352) is connected to one end of the screw of the wedge block screw nut pair (351) through a coupling (354) and can drive the wedge block (353) to move linearly through the wedge block screw nut pair (351) to adjust the gap size between the movable roller assembly (33) and the fixed roller assembly (32).

8. The electrode thinning device based on a screw mechanism according to claim 4, characterized in that: The three-roll thinning mechanism (4) includes a three-roll mechanism mounting frame (41) and an intermediate steel roller (423), a first steel roller moving guide rail (411), and a second steel roller moving guide rail (412) mounted on the three-roll mechanism mounting frame (41). A first steel roller mounting seat (441) and a second steel roller mounting seat (442) are respectively provided on the first steel roller moving guide rail (411) and the second steel roller moving guide rail (412). The first moving steel roller (421) is mounted on the first steel roller mounting seat (441), and the intermediate steel roller (423) is mounted on the second steel roller mounting seat (442). Two movable steel rollers (422) are provided. The first steel roller drive device (491) and the second steel roller drive device (492) are respectively installed on both sides of the three-roller mechanism mounting frame (41). The output end of the first steel roller drive device (491) is connected to the first steel roller mounting seat (441) and can drive the first movable steel roller (421) to slide on the first steel roller moving guide rail (411). The output end of the second steel roller drive device (492) is connected to the second steel roller mounting seat (442) and can drive the second movable steel roller (422) to slide on the second steel roller moving guide rail (412).

9. The electrode thinning device based on a screw mechanism according to claim 4, characterized in that: The three-roll mechanism mounting frame (41) is also provided with a scraper device for use with the intermediate steel roller (423). The scraper device includes a scraper drive cylinder (461) fixedly mounted on the three-roll mechanism mounting frame (41) and a scraper assembly (462) mounted on the output end of the scraper drive cylinder (461). The scraper drive cylinder (461) can drive the scraper assembly (462) to approach the intermediate steel roller (423) and use the scraper in the scraper assembly (462) to scrape off the waste material on the intermediate steel roller (423). The three-roll mechanism mounting frame (41) is also provided with a tension roller mounting plate (471), the tension roller mounting plate (471) is provided with a discharge tension sensor (472), and the discharge tension sensor (472) is provided with a tension roller (473).

10. The electrode thinning device based on a screw mechanism according to claim 4, characterized in that: The tension detection mechanism (5) includes a tension sensor (51) and a tension roller (52) mounted on the tension sensor (51); The swing roller adjustment mechanism (6) includes a swing roller adjustment base plate (61) and a swing adjustment fixed roller (62), a swing adjustment guide roller (63), a movable pressure roller adjustment guide rail (64), a swing roller adjustment guide rail (65), a movable pressure roller drive cylinder (66), and a swing roller drive cylinder (67) disposed on the swing roller adjustment base plate (61). A movable pressure roller seat (641) is disposed on the movable pressure roller adjustment guide rail (641), and a movable pressure roller (68) used in conjunction with the swing adjustment fixed roller (62) is disposed on the movable pressure roller seat (641). The output end of the moving pressure roller drive cylinder (66) is connected to the moving pressure roller seat (641) and can drive the moving pressure roller seat (641) and the moving pressure roller (68) to slide on the moving pressure roller adjustment guide rail (64). The swing roller adjustment guide rail (65) is provided with a swing roller seat (651), and the swing roller (69) is provided on the swing roller seat (651). The output end of the swing roller drive cylinder (67) is connected to the swing roller seat (651) and can drive the swing roller seat (651) and the swing roller (69) to slide on the swing roller adjustment guide rail (65).

Images