A new energy pole piece roll divides all-in-one machine cutter device

CN122770079APending Publication Date: 2026-09-18DOCTUS (SHANGHAI) NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610995108.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-06
Publication Date
2026-09-18

AI Technical Summary

Technical Problem

[0004]上述中的现有技术方案存在以下缺陷:现有的辊分一体机的切刀多为整体式结构,磨损后需整体更换,维护成本较高

Benefits of technology

[0028] 1. By setting up a cutter shaft, cutter holder, elastic shims, and fine-tuning screw, the wear resistance, impact resistance, and self-lubrication of the cutting edge are improved, reducing burrs generated by chips and extending the service life of the cutter ring. The interference fit between the cutter ring and the cutter holder ensures the stability and reliability of the cutter ring fixed on the cutter holder. The cutter ring is installed with a detachable cutter holder, which facilitates the replacement or maintenance of the cutter ring and reduces the maintenance cost of the cutter ring. It is also convenient to disassemble and install the cutter of the roller separator, which reduces the maintenance cost.

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Abstract

This application relates to the field of battery production equipment technology, and in particular to a cutting device for a new energy electrode roller sizing machine. The device includes a cutter shaft with end caps fixed to both ends. At least two cutter holders are spaced apart on the cutter shaft, and locking bolts are threaded onto each cutter holder, abutting against the cutter shaft. A fine-tuning screw is threaded onto each cutter holder, with one end abutting against the cutter shaft. An elastic washer is fitted onto the cutter shaft, located between two cutter holders. A cutter ring is fitted onto each cutter holder, with an interference fit. The cutter ring has a wear-resistant coating, which is a composite structure consisting of a chromium nitride underlayer, a titanium aluminum nitride transition layer, and a diamond-like carbon surface layer. The outer circumference of the cutter ring is machined to form a cutting edge, achieving the effect of facilitating the disassembly and assembly of the roller sizing machine's cutter and reducing maintenance costs.
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Description

Technical Field

[0001] This application relates to the field of battery production equipment technology, and in particular to a cutting device for an integrated new energy electrode roller separating machine. Background Technology

[0002] The integrated roller slitting machine is a composite equipment that integrates rolling and slitting functions. It is mainly used for continuous processing of strip materials, such as lithium battery electrodes, metal foils, and plastic films. In the production process of new energy batteries, the integrated roller slitting machine is the core equipment for achieving precise electrode slitting. As a key component of this equipment, the performance of the cutter directly affects the slitting accuracy, edge quality, and production efficiency of the electrodes.

[0003] Most existing roller slitting machines have an integral cutter structure, usually consisting of upper and lower roller circular cutters. They slit the electrode sheets using the "roll shearing principle," relying on the local shearing force of the blades rather than stamping to achieve slitting. Repairing and replacing the cutter usually requires complete disassembly.

[0004] The existing technical solutions mentioned above have the following drawbacks: the cutters of existing roller separators are mostly integral structures, which need to be replaced as a whole after wear, resulting in high maintenance costs. Summary of the Invention

[0005] This application provides a cutting device for a new energy electrode roller sizing machine to facilitate the disassembly and assembly of the cutting blade and reduce maintenance costs.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A cutting device for an integrated roller separator for new energy electrodes includes a cutter shaft with end caps fixed to both ends. At least two cutter holders are spaced apart on the cutter shaft, and locking bolts are threaded onto each cutter holder, abutting against the cutter shaft. A fine-tuning screw is threaded onto each cutter holder, with one end abutting against the cutter shaft. An elastic washer is fitted onto the cutter shaft between two cutter holders. A cutter ring is fitted onto each cutter holder, with an interference fit. The cutter ring has a wear-resistant coating, which is a composite structure consisting of a chromium nitride underlayer, a titanium aluminum nitride transition layer, and a diamond-like carbon surface layer. A cutting edge is machined on the outer periphery of the cutter ring.

[0008] By adopting the above technical solution, the end of the fine-tuning screw gradually pushes against the outer wall of the cutter shaft, and the reaction force drives the cutter holder to move slightly along the axial direction of the cutter shaft, thereby achieving precise adjustment of the cutter body spacing. The elastic shim can buffer the pressure between adjacent cutter holders. When the fine-tuning screw adjusts the position, the elastic shim can buffer the compressive stress and assist in positioning, reducing the risk of cutter holder loosening. By setting a wear-resistant coating on the cutter ring, the chromium nitride bottom layer ensures the bonding force between the wear-resistant coating and the cutter ring, the titanium aluminum nitride transition layer improves the toughness of the wear-resistant coating, and the diamond-like carbon surface layer improves the wear resistance and self-lubrication of the cutter ring. Through the multi-layer gradient composite coating structure of the wear-resistant coating, the advantages of each layer material can be combined to improve the wear resistance, impact resistance, and self-lubrication of the cutting edge, reduce burrs generated by chips, and extend the service life of the cutter ring. The interference fit between the cutter ring and the cutter holder ensures the stability and reliability of the cutter ring fixed on the cutter holder. The cutter ring is installed with a detachable cutter holder, which facilitates the replacement or maintenance of the cutter ring, reduces the maintenance cost of the cutter ring, and facilitates the disassembly and assembly of the cutter of the roller separator, reducing maintenance costs.

[0009] Optionally, the cutter ring is made of high-hardness tungsten steel, the cutting edge has a cutting edge angle of 15° to 25°, and the cutting edge of the cutter ring is machined to form a small rounded transition with a radius of 0.01-0.03mm.

[0010] By adopting the above technical solutions, the cutter ring has both high hardness and strong bending strength, reducing the risk of chipping caused by abrasive wear and micro-impact. The cutting edge of the cutter ring adopts a cutting edge angle of 15° to 25°, reducing the risk of chipping caused by frequent impacts of hard particles on the electrode sheet, reducing the risk of separation of the electrode coating from the foil or edge burrs after slitting, ensuring slitting quality and reducing maintenance costs.

[0011] Optionally, the total thickness of the wear-resistant coating on the blade ring is 3-8 μm, wherein the thickness of the chromium nitride underlayer is 1-2 μm, the thickness of the titanium aluminum nitride transition layer is 1-3 μm, and the thickness of the diamond-like carbon surface layer is 1-3 μm.

[0012] By adopting the above technical solution, the 1-2μm thick chromium nitride underlayer improves the interfacial bonding strength between the cutter ring and the wear-resistant coating, reducing the risk of plastic deformation of the wear-resistant coating under cutting loads. The 1-3μm thick titanium aluminum nitride middle layer protects the wear-resistant coating from complete oxidation at high cutting temperatures, ensuring the thermal barrier function of the wear-resistant coating and guaranteeing its stress buffering and wear resistance. The 1-3μm thick diamond-like carbon layer improves the wear life of the wear-resistant coating and ensures its reliability. The total thickness of the wear-resistant coating is 3-8μm, ensuring the wear life of the wear-resistant coating system under abrasive wear conditions during electrode cutting, reducing the risk of excessive internal stress in the wear-resistant coating leading to cracking, and lowering maintenance costs.

[0013] Optionally, a rotary joint is installed on the end cap, and a cooling pipe is provided inside the cutter shaft. The cooling pipe is spirally arranged along the length of the cutter shaft, fixed to the cutter shaft, and its two ends are respectively connected to the two rotary joints.

[0014] By adopting the above technical solution, the coolant in the cooling pipe flows along the inner wall of the cutter shaft, reducing the temperature of the cutting device during the chip cutting process, reducing the risk of deformation caused by high temperature of the cutter ring, ensuring the stability and cutting quality of the cutter ring during operation, extending the service life of the cutter ring, and reducing the maintenance cost of the cutter.

[0015] Optionally, an oil pipe is provided inside the cutter shaft, and the two ends of the oil pipe are respectively connected to two rotary joints. A hose is connected to the oil pipe, and at least two hoses are spaced apart. One end of each hose is connected to one of the two cutter holders. A lubrication hole is provided inside the cutter holder, and multiple lubrication holes are spaced apart. One end of each lubrication hole is connected to a hose, and the other end of the lubrication hole is connected to the outer wall of the cutter holder.

[0016] By adopting the above technical solution, when the cutting device is working, the lubricating oil flows along the cutter ring to the cutting edge, thereby achieving lubrication during the operation of the cutter ring, reducing cutting friction, ensuring the stability and slitting quality of the cutter ring during operation, extending the service life of the cutter ring, reducing production energy consumption, and reducing the maintenance cost of the cutter.

[0017] Optionally, a dust seal and an oil seal are fixedly attached to the end cap.

[0018] By adopting the above technical solutions, the cutting dust and oil entering the cutter shaft are reduced, the risk of leakage from the cooling pipes, oil pipes and hoses contaminating the electrode is reduced, the slitting quality of the cutter ring is guaranteed, and the pressure of the cooling pipes, oil pipes and hoses is kept stable.

[0019] Optionally, a positioning groove is provided on the cutter shaft, and a positioning key is fixedly connected to the cutter holder, with the positioning key embedded in the positioning groove.

[0020] By adopting the above technical solution and using locking bolts spaced at intervals to fix the tool holder on the tool shaft, the accuracy of the tool shaft installation position is ensured, the axial position accuracy of the tool shaft and the tool holder is ensured, and the stability of the connection between the tool holder and the tool shaft is improved.

[0021] Optionally, a pressure sensor is installed on the cutter ring, and the measuring end of the pressure sensor abuts against the cutter ring.

[0022] By adopting the above technical solution, it is convenient to monitor the pressure of the blade ring when cutting chips, and it is convenient for operators to optimize the cutting parameters according to the electrode material and thickness, thereby reducing the risk of electrode stretching deformation or incomplete cutting, ensuring cutting accuracy, and reducing maintenance costs.

[0023] Optionally, a ceramic block is embedded at one end of the fine-tuning screw, and the ceramic block abuts against the cutter shaft.

[0024] By adopting the above technical solution, the friction between the end of the fine-tuning screw and the cutter shaft is increased, and the ceramic block abuts against the cutter shaft, reducing the risk of scratching the cutter shaft due to long-term contact and friction between the fine-tuning screw and the cutter shaft, improving the durability of the cutter shaft and the fine-tuning screw, extending the service life of the cutter shaft and the fine-tuning screw, and reducing maintenance costs.

[0025] Optionally, one end of the fine-tuning screw is machined with anti-slip texture.

[0026] By adopting the above technical solution, the friction between the end of the fine-tuning screw and the cutter shaft is improved, ensuring the stability of the fine-tuning screw in adjusting the cutter holder and facilitating the maintenance and replacement of the cutter holder.

[0027] In summary, this application has the following technical effects:

[0028] 1. By setting up a cutter shaft, cutter holder, elastic shims, and fine-tuning screw, the wear resistance, impact resistance, and self-lubrication of the cutting edge are improved, reducing burrs generated by chips and extending the service life of the cutter ring. The interference fit between the cutter ring and the cutter holder ensures the stability and reliability of the cutter ring fixed on the cutter holder. The cutter ring is installed with a detachable cutter holder, which facilitates the replacement or maintenance of the cutter ring and reduces the maintenance cost of the cutter ring. It is also convenient to disassemble and install the cutter of the roller separator, which reduces the maintenance cost.

[0029] 2. By incorporating end caps, rotary joints, and cooling pipes, the temperature of the cutting device during the chip-cutting process is reduced, thereby mitigating the risk of deformation caused by high temperatures in the blade ring. This ensures the stability and slitting quality of the blade ring during operation, extends the service life of the blade ring, and reduces the maintenance costs of the cutting device.

[0030] 3. By setting sealing rings and oil seals, the cutting dust and oil entering the cutter shaft are reduced, the risk of leakage from the cooling pipes, oil pipes and hoses contaminating the electrode is reduced, the slitting quality of the cutter ring is guaranteed, and the pressure of the cooling pipes, oil pipes and hoses is kept stable. Attached Figure Description

[0031] Figure 1 This is a structural diagram of the object of this application;

[0032] Figure 2 This is a cross-sectional structural diagram of the cutter shaft of this application;

[0033] Figure 3 This is a prominent structural diagram of the fine-tuning screw in this application;

[0034] Figure 4 This is a prominent structural diagram of the end cap of this application.

[0035] Explanation of reference numerals in the attached diagram: 1. Tool shaft; 11. Positioning groove; 12. Cooling pipe; 13. Oil pipe; 14. Flexible hose; 2. End cap; 21. Dust seal; 22. Oil seal; 23. Rotary joint; 3. Tool holder; 31. Positioning key; 32. Locking bolt; 33. Pressure sensor; 34. Lubrication hole; 4. Elastic washer; 5. Fine-tuning screw; 51. Ceramic block; 6. Tool ring; 61. Cutting edge. Detailed Implementation

[0036] The present application will be further described in detail below with reference to the accompanying drawings.

[0037] This application discloses a cutting device for a new energy electrode roller separating integrated machine, referring to... Figure 1 and Figure 2 The cutting device includes a cutter shaft 1. Both ends of the cutter shaft 1 are provided with connecting keyways for connecting with the drive mechanism of the roller separator. The cutter shaft 1 has a hollow structure. End caps 2 are fixed to the end faces of both ends of the cutter shaft 1 by bolts. A cutter seat 3 is provided on the cutter shaft 1. The cutter seat 3 is annular and is sleeved on the cutter shaft 1. Multiple cutter seats 3 are spaced apart. Elastic washers 4 are sleeved on the cutter shaft 1. The elastic washers 4 are slidably connected to the cutter shaft 1. Multiple elastic washers 4 are spaced apart. Multiple elastic washers 4 are located between two adjacent cutter seats 3. A fine-tuning screw 5 is passed through the cutter seat 3.

[0038] Reference Figure 1 and Figure 2 The tool holder 3 is fitted with a tool ring 6 on its peripheral wall. The tool ring 6 and the tool holder 3 are interference-fitted with a tolerance of H7 / p6. In this embodiment, the tool ring 6 is made of high-hardness tungsten steel. The outer periphery of the tool ring 6 is machined with a cutting edge 61. The cutting edge 61 of the tool ring 6 has a cutting edge angle of 15° to 25° and a small rounded corner with a radius of 0.01-0.03mm. The cutting edge 61 of the tool ring 6 is coated with a wear-resistant coating. In this embodiment, the wear-resistant coating is a composite structure of a chromium nitride base layer, a titanium aluminum nitride transition layer, and a diamond-like carbon surface layer. The total thickness of the wear-resistant coating is 3-8μm, of which the base layer thickness is 1-2μm, the transition layer thickness is 1-3μm, and the surface layer thickness is 1-3μm.

[0039] Reference Figure 1 and Figure 2The cutter shaft 1 has a positioning groove 11, which is opened along the length of the cutter shaft 1. The tool holder 3 has a positioning key 31 integrally formed on the side facing the cutter shaft 1. The positioning key 31 is embedded in the positioning groove 11 and is slidably connected to the positioning groove 11. The tool holder 3 is provided with locking bolts 32, and multiple locking bolts 32 are arranged at intervals along the peripheral wall of the tool holder 3. The locking bolts 32 are threadedly connected to the tool holder 3, and one end of the locking bolt 32 abuts against the peripheral wall of the cutter shaft 1. The peripheral wall of the cutter ring 6 is embedded with a pressure sensor 33, and the measuring end of the pressure sensor 33 abuts against the inner circumference of the cutter ring 6.

[0040] Reference Figure 2 and Figure 3 One end of the fine-tuning screw 5 abuts against the peripheral wall of the cutter shaft 1. The pitch of the fine-tuning screw 5 is 0.5mm. The end of the fine-tuning screw 5 facing the cutter shaft 1 is machined with anti-slip texture. A ceramic block 51 is embedded in the end of the fine-tuning screw 5 facing the cutter shaft 1. The side of the ceramic block 51 facing the cutter shaft 1 abuts against the peripheral wall of the cutter shaft 1.

[0041] Reference Figure 2 and Figure 4 The end cap 2 has a dustproof ring 21 and an oil seal 22 bonded to its peripheral wall. A rotary joint 23 is installed on the end cap 2. In this embodiment, the rotary joint 23 is a rotary oil circuit joint. A cooling pipe 12 is welded to the inner wall of the cutter shaft 1. The cooling pipe 12 is spirally arranged along the length direction of the cutter shaft 1. The two ends of the cooling pipe 12 are respectively connected to two rotary joints 23. An oil pipe 13 is installed inside the cutter shaft 1. The oil pipe 13 is arranged along the length direction of the cutter shaft 1. The two ends of the oil pipe 13 are respectively connected to two rotary joints 23. A hose 14 is connected to the oil pipe 13. Multiple hoses 14 are arranged at intervals. Multiple hoses 14 are close to multiple tool holders 3. The end of the hose 14 away from the oil pipe 13 extends out of the cutter shaft 1 and is connected to the tool holder 3 that is close to it.

[0042] Reference Figure 2 The tool holder 3 has a lubrication hole 34, and multiple lubrication holes 34 are spaced apart. One end of the lubrication hole 34 is connected to the hose 14. The end of the lubrication hole 34 away from the hose 14 is spaced apart along the peripheral wall of the tool holder 3. The end of the lubrication hole 34 away from the hose 14 is connected to the peripheral wall of the tool holder 3 and close to the tool ring 6. The rotary joint 23 is connected to the lubrication oil circuit of the external oil supply equipment and the coolant circuit of the external cooling system.

[0043] When using this cutting device, multiple spaced locking bolts 32 fix the cutter holder 3 to the cutter shaft 1. Rotating the fine-tuning screw 5 causes the end of the screw 5 to gradually push against the outer wall of the cutter shaft 1. The reaction force causes the cutter holder 3 to move slightly along the axial direction of the cutter shaft 1, achieving precise adjustment of the cutter spacing. The elastic shim 4 can buffer the pressure between adjacent cutter holders 3. When the fine-tuning screw 5 is adjusted, the elastic shim 4 can buffer the compressive stress and assist in positioning, reducing the risk of the cutter holder 3 loosening. By setting a wear-resistant coating on the cutter ring 6, the chromium nitride underlayer ensures the bonding force between the wear-resistant coating and the cutter ring 6. The titanium aluminum nitride overlay... The coating layer improves the toughness of the wear-resistant coating, while the diamond-like carbon surface layer improves the wear resistance and self-lubrication of the cutter ring 6. Through the multi-layer gradient composite coating structure of the wear-resistant coating, the advantages of each layer material can be combined to improve the wear resistance, impact resistance, and self-lubrication of the cutting edge 61, reduce burrs generated by chips, and extend the service life of the cutter ring 6. The interference fit between the cutter ring 6 and the cutter holder 3 ensures the stability and reliability of the cutter ring 6 fixed on the cutter holder 3. The cutter ring 6 is installed with the detachable cutter holder 3, which facilitates the replacement or maintenance of the cutter ring 6, reduces the maintenance cost of the cutter ring 6, and facilitates the disassembly and assembly of the cutter of the roller separator, thus reducing maintenance costs.

[0044] By spirally arranging cooling pipes 12 inside the cutter shaft 1, the coolant in the cooling pipes 12 flows along the inner wall of the cutter shaft 1, reducing the temperature of the cutting device during the chip cutting process, reducing the risk of deformation of the cutter ring 6 due to high temperature, ensuring the stability and cutting quality of the cutter ring 6 during operation, extending the service life of the cutter ring 6, and reducing the maintenance cost of the cutter.

[0045] By installing oil pipe 13 and hose 14 inside the cutter shaft 1, lubricating oil is delivered to the cutter holder 3 through oil pipe 13 and hose 14. The lubricating oil flows along the cutter holder 3 to the cutter ring 6. When the cutting device is working, the lubricating oil flows along the cutter ring 6 to the cutting edge 61, thereby achieving lubrication of the cutter ring 6 during operation, reducing cutting friction, ensuring the stability and slitting quality of the cutter ring 6 during operation, extending the service life of the cutter ring 6, reducing production energy consumption, and reducing the maintenance cost of the cutter.

[0046] By setting a dustproof ring 21 and an oil seal 22 on the end cover 2, the cutting dust and oil entering the cutter shaft 1 are reduced, the risk of leakage and contamination of the electrode by the cooling pipe 12, oil pipe 13 and hose 14 is reduced, the slitting quality of the cutter ring 6 is guaranteed, and the pressure of the cooling pipe 12, oil pipe 13 and hose 14 is kept stable.

[0047] By setting a pressure sensor 33 on the tool holder 3, it is easy to monitor the pressure of the blade ring 6 when cutting chips. This allows operators to optimize cutting parameters according to the electrode material and thickness, reducing the risk of electrode stretching deformation or incomplete cutting, ensuring cutting accuracy, and reducing maintenance costs.

[0048] By creating anti-slip grooves on the fine-tuning screw 5, the friction between the end of the fine-tuning screw 5 and the cutter shaft 1 is increased, ensuring the stability of the fine-tuning screw 5 in adjusting the cutter holder 3, and facilitating the maintenance and replacement of the cutter holder 3.

[0049] By setting a ceramic block 51 on the fine-tuning screw 5, the friction between the end of the fine-tuning screw 5 and the cutter shaft 1 is increased. The ceramic block 51 abuts against the cutter shaft 1, reducing the risk of scratching the cutter shaft 1 due to long-term contact and friction between the fine-tuning screw 5 and the cutter shaft 1, improving the durability of the cutter shaft 1 and the fine-tuning screw 5, extending the service life of the cutter shaft 1 and the fine-tuning screw 5, and reducing maintenance costs.

[0050] By setting a 1-2μm thick chromium nitride underlayer, the interfacial bonding strength between the cutter ring 6 and the wear-resistant coating is improved, reducing the risk of plastic deformation of the wear-resistant coating under cutting loads. A 1-3μm thick titanium aluminum nitride middle layer ensures that the wear-resistant coating is protected from complete oxidation at high cutting temperatures, ensuring the thermal barrier function of the wear-resistant coating, and guaranteeing the stress buffering and wear resistance performance of the wear-resistant layer. A 1-3μm thick diamond-like carbon layer can improve the wear life of the wear-resistant coating and ensure its reliability. The total thickness of the wear-resistant coating is 3-8μm, ensuring the wear life of the wear-resistant coating system under the abrasive wear conditions of electrode cutting, reducing the risk of increased cracking due to excessive internal stress in the wear-resistant coating, and reducing maintenance costs.

[0051] By setting a positioning key 31 on the tool holder 3, the positioning key 31 of the tool holder 3 is embedded in the positioning groove 11 of the tool shaft 1. With the help of the locking bolts 32 set at intervals, the tool holder 3 is fixed on the tool shaft 1, which ensures the accuracy of the installation position of the tool shaft 1, ensures the accuracy of the axial position of the tool shaft 1 and the tool holder 3, and improves the stability of the connection between the tool holder 3 and the tool shaft 1.

[0052] By using a tungsten carbide cutter ring 6, the cutter ring 6 has both high hardness and strong bending strength, reducing the risk of chipping caused by abrasive wear and micro-impact. The cutting edge 61 of the cutter ring 6 adopts a cutting edge angle of 15° to 25°, reducing the risk of chipping caused by frequent impacts of hard particles on the electrode sheet, reducing the risk of separation of the electrode coating from the foil or edge burrs after slitting, ensuring slitting quality and reducing maintenance costs.

[0053] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A cutting device for an integrated new energy electrode roller separating machine, characterized in that, The cutting device includes a cutter shaft (1), with end caps (2) fixedly connected to both ends of the cutter shaft (1). A cutter holder (3) is sleeved on the cutter shaft (1), and at least two cutter holders (3) are spaced apart. A locking bolt (32) passes through the cutter holder (3) and is threaded to the cutter holder (3). The locking bolt (32) abuts against the cutter shaft (1). A fine-tuning screw (5) passes through the cutter holder (3), and one end of the fine-tuning screw (5) is... The tool is abutted against the tool shaft (1), and an elastic washer (4) is fitted on the tool shaft (1). The elastic washer (4) is located between two tool holders (3). A tool ring (6) is fitted on the tool holder (3). The tool ring (6) is interference-fitted with the tool holder (3). A wear-resistant coating is provided on the tool ring (6). The wear-resistant coating is a composite structure of a chromium nitride base layer, a titanium aluminum nitride transition layer and a diamond-like carbon surface layer. A cutting edge (61) is formed on the outer periphery of the tool ring (6).

2. The cutting device for a new energy electrode roller slitting integrated machine according to claim 1, characterized in that: The cutter ring (6) is made of high-hardness tungsten steel material. The cutting edge (61) has a cutting edge angle of 15° to 25°. The cutting edge (61) of the cutter ring (6) is machined to form a small rounded transition with a radius of 0.01-0.03mm.

3. The cutting device for a new energy electrode roller slitting integrated machine according to claim 2, characterized in that: The total thickness of the wear-resistant coating on the blade ring (6) is 3-8 μm, of which the thickness of the chromium nitride bottom layer is 1-2 μm, the thickness of the titanium aluminum nitride transition layer is 1-3 μm, and the thickness of the diamond-like carbon surface layer is 1-3 μm.

4. The cutting device for a new energy electrode roller slitting integrated machine according to claim 1, characterized in that: A rotary joint (23) is installed on the end cap (2), and a cooling pipe (12) is provided inside the cutter shaft (1). The cooling pipe (12) is spirally arranged along the length direction of the cutter shaft (1). The cooling pipe (12) is fixed to the cutter shaft (1), and the two ends of the cooling pipe (12) are respectively connected to the two rotary joints (23).

5. The cutting device for a new energy electrode roller slitting integrated machine according to claim 4, characterized in that: An oil pipe (13) is provided inside the cutter shaft (1). The two ends of the oil pipe (13) are respectively connected to two rotary joints (23). A hose (14) is connected to the oil pipe (13). At least two hoses (14) are spaced apart. One end of the two hoses (14) is respectively connected to two cutter holders (3). A lubrication hole (34) is provided inside the cutter holder (3). Multiple lubrication holes (34) are spaced apart. One end of the lubrication hole (34) is connected to the hose (14), and the other end of the lubrication hole (34) is connected to the outer wall of the cutter holder (3).

6. The cutting device for a new energy electrode roller slitting integrated machine according to claim 5, characterized in that: A dustproof ring (21) and an oil seal (22) are fixedly attached to the end cap (2).

7. The cutting device for a new energy electrode roller slitting integrated machine according to claim 1, characterized in that: The cutter shaft (1) has a positioning groove (11), and the cutter holder (3) has a positioning key (31) fixedly connected to it. The positioning key (31) is embedded in the positioning groove (11).

8. The cutting device for a new energy electrode roller slitting integrated machine according to claim 7, characterized in that: A pressure sensor (33) is installed on the cutter ring (6), and the measuring end of the pressure sensor (33) abuts against the cutter ring (6).

9. The cutting device for a new energy electrode roller slitting integrated machine according to claim 1, characterized in that: A ceramic block (51) is embedded at one end of the fine-tuning screw (5), and the ceramic block (51) abuts against the cutter shaft (1).

10. The cutting device for a new energy electrode roller slitting integrated machine according to claim 9, characterized in that: One end of the fine-tuning screw (5) is machined with anti-slip texture.