Electrolytic copper foil lug material cutting device and adjusting method
By designing the cutting air film and collar structure, stepless adjustment of the electrolytic copper foil cutting device was achieved, solving the problem of discontinuous cutting roller surface and improving the flatness of copper foil and production efficiency.
Patent Information
- Application Number
- CN202511567888.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2025-12-30
AI Technical Summary
The cutting roller groove position and width of the existing electrolytic copper foil cutting device are fixed and cannot be flexibly adjusted, resulting in discontinuity on the surface of the cutting roller, which affects the flatness of the copper foil and production efficiency.
By adopting a cutting air film and collar structure, and through air pressure regulation and support frame design, the cutting roller can be infinitely adjusted to ensure a smooth and continuous surface of the cutting roller and avoid the influence of ineffective knife grooves.
It improves the flatness and product quality of copper foil, enhances production adaptability and efficiency, and avoids problems such as copper foil wrinkling and edge tearing.
Smart Images
Figure CN121223908A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of electrolytic copper foil ear material cutting, and particularly relates to an electrolytic copper foil ear material cutting device and a regulating method. BACKGROUND
[0002] In the production process of electrolytic copper foil, the edge of the foil surface usually forms uneven excess parts that need to be cut off, which are referred to as "ear material". With the increasing demand for high-precision electrolytic copper foil for lithium batteries, the edge ear material usually needs to be cut off. The currently widely used ear material cutting device is usually composed of a cutting roller and a cutting knife, and the cutting of the ear material is realized through the shearing force formed between the two. In the prior art, a plurality of circumferential knife grooves of different widths are formed on the surface of the cutting roller in fixed positions along the axial direction of the cutting roller, and are used to place cutting blades or form cutting lines with the cutting blades. The position and width of the existing knife grooves are fixed, that is, the position of the knife grooves on the axial direction of the existing cutting roller (which determines the cutting position of the ear material) and the width of the knife grooves (which determines the thickness of the cut copper foil) are fixed by pre-processing. Once the cutting roller is manufactured, it cannot be changed. Furthermore, such a cutting roller has poor adaptability. When different width and thickness copper foils need to be produced, the cutting roller with corresponding knife groove position and width must be replaced, or multiple knife grooves of different widths are pre-set on the same cutting roller. The replacement process of the cutting roller is complicated and time-consuming, which affects the production efficiency. By pre-setting multiple knife grooves, the working surface of the cutting roller is no longer a smooth continuous cylindrical surface. When high-speed winding of ultra-thin electrolytic copper foil (such as thickness below 9 microns) passes through these invalid knife grooves, wrinkles are easily generated due to the small gap or depression, which seriously affects the flatness of the foil surface, and even causes the edge of the copper foil to be torn, resulting in downgraded products or waste products. In order to solve the above problems, an electrolytic copper foil ear material cutting device and a regulating method are provided. SUMMARY
[0003] The purpose of the present application is to solve the problem that the position and width of the knife grooves of the traditional cutting roller are fixed and cannot be flexibly adjusted, and that pre-setting multiple knife grooves will cause the surface of the cutting roller to be discontinuous.
[0004] The present application adopts the following technical solutions: An electrolytic copper foil ear material cutting device, comprising a center roller and a cutting air film sleeved on the center roller, the two ends of the center roller have positioning edges fitted on the center roller, the length of the cutting air film is the same as that of the center roller, the contact surface of the cutting air film and the center roller has positioning grooves matched with the positioning edges, the two sides of the cutting air film are provided with sleeve rings sleeved thereon, the outer diameter of the sleeve ring is the same as that of the cutting air film after inflation, and the sleeve ring has knife grooves for cooperating with cutting knives to cut copper foil ear material. Further, the center roller is cylindrical, the diameter of the two ends of the center roller provided with the positioning edge is smaller than the diameter of the middle part without the positioning edge, the cross section of the cutting gas film is annular, the inner diameter of the two sides provided with the positioning groove is larger than the inner diameter of the middle part without the positioning groove, and the outer diameter of the cutting gas film remains flush; Further, the positioning edge is fixedly arranged on the circumferential surface of the center roller, the positioning edge is distributed in the shape of a cross on the surface of the center roller, and the positioning groove is correspondingly arranged above and below the positioning groove, so that the cutting gas film is connected with the center roller. Further, the two sides of the cutting gas film have air inlet ports connected with external air pumps, for maintaining the air pressure inside the cutting gas film. Further, the outer surface of the sleeve ring is provided with a cutter groove matched with the cutter, and the inner surface is provided with an arc-shaped limiting groove recessed inward, the cutting gas film after being inflated is matched with the limiting groove of the sleeve ring, and the sleeve ring is limited. Further, it further comprises a support frame consistent with the length of the center roller, the support frame is detachably mounted on the support frame mounting the center roller, the support frame is provided with a sliding groove facing the center roller, a bidirectional screw rod in the sliding groove, two connecting blocks in the sliding groove, the connecting blocks are threadedly connected to the bidirectional screw rod, a clamping jaw is arranged at the front end of each connecting block, and the clamping jaw is matched with the sleeve ring. Further, the bidirectional screw rod is connected with an external controller, the clamping jaw is provided with an adjustable structure, and the clamping jaw is used for clamping sleeve rings of different sizes. Further, the cutting gas film is made of high-strength PVC net cloth. A kind of adjusting method of electrolytic copper foil ear material cutting device, comprising the following steps: S1, the cutting gas film not inflated is sleeved on the center roller, and the two ends of the two are aligned. S2, the two sleeve rings are clamped by using the two clamping jaws of the support frame, the bidirectional screw rod drives the connecting block and the clamping jaw, and then drives the two sleeve rings to move to the middle at the same time, stops moving after reaching the appropriate position, at this time, the cutter groove above the sleeve ring is aligned with the cutter. S31, air is filled into the cutting gas film through the air inlet port, after the cutting gas film is inflated, the inner wall is matched with the outer wall of the center roller, the cutting gas film is matched with the center roller by the cooperation of the positioning edge and the positioning groove, and the cutting gas film at the position of the sleeve ring is limited in the inner wall of the sleeve ring, cannot be flush with the positions on both sides, the outer diameter of the sleeve ring at this position is flush with the cutting gas film on both sides and is matched, the cutting gas film at this position is matched with the limiting groove of the sleeve ring upward, to ensure the stability of the sleeve ring position. S32, during the inflation process of the cutting gas film, the cutting gas film has a certain supporting effect on the sleeve ring, the clamping jaws on the support frame are loosened, the bidirectional screw rod controls the two clamping jaws to move outward, after the inflation of the cutting gas film is completed, the support frame is taken out as a whole, to reduce the influence on the cutting of copper foil ear material. S4, the control center roller drives the cutting gas film to run, and the cutter and the cutter groove on the sleeve ring cooperate to cut the copper foil ear material; S5, the air pressure in the cutting gas film is adjusted to be low through the inflation port, the left and right positions of the sleeve ring are adjusted through the clamping jaw on the support frame, and after inflation again, the sleeve ring still completes the fitting with the cutting gas film, and stepless adjustment is realized.
[0005] The beneficial effects of the present application are: Through the cooperation of the cutting gas film and the sleeve ring, the surface of the device can be kept smooth and continuous during cutting, the influence of invalid cutter grooves on ultra-thin electrolytic copper foil is eliminated, the problems of copper foil wrinkling and edge tearing are effectively avoided, the foil flatness is ensured, and the product quality is improved; When working, only the sleeve ring area involved in cutting has a cutter groove, the cutting gas film itself forms a smooth and continuous cylindrical working surface, which fundamentally avoids the problems of wrinkling and edge tearing caused by discontinuous roller surface, and significantly improves the flatness of the foil and the yield rate; Through the movable sleeve ring design, the limitation of traditional fixed cutter groove is broken. The cutting position can be accurately set by moving the sleeve ring through the support frame, and the entire cutting roller does not need to be replaced, so that the production demand of copper foil with different widths can be quickly adapted. BRIEF DESCRIPTION OF DRAWINGS
[0006] Figure 1 It is a whole structure schematic view of the electrolytic copper foil ear material cutting device and adjusting method; Figure 2 It is an explosion schematic view of the use structure of the electrolytic copper foil ear material cutting device and adjusting method; Figure 3 It is a center roller structure schematic view of the electrolytic copper foil ear material cutting device and adjusting method; Figure 4 It is a cutting gas film cross-section structure schematic view of the electrolytic copper foil ear material cutting device and adjusting method; Figure 5 It is a support frame and sleeve ring structure schematic view of the electrolytic copper foil ear material cutting device and adjusting method; In the figure: 1, center roller; 3, positioning edge; 4, cutting gas film; 5, positioning groove; 6, inflation port; 7, sleeve ring; 8, cutter groove; 9, limiting groove; 10, support frame; 11, sliding groove; 12, bidirectional screw; 13, connecting block; 14, clamping jaw. DETAILED DESCRIPTION
[0007] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0008] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0009] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.
[0010] Example 1 This invention provides an electrolytic copper foil cutting device, comprising a central roller 1, a cutting air film 4, a collar 7, and a support frame 10; The center roller 1 is cylindrical, with positioning ribs 3 arranged in a grid pattern at both ends, and the diameter of both ends is smaller than the diameter of the middle part without positioning ribs 3. The cutting air membrane 4 is fitted onto the center roller 1. The cutting air membrane 4 is made of high-strength PVC mesh fabric with an annular cross section and the same length as the center roller 1. Its contact surface is provided with positioning grooves 5 that cooperate with positioning ridges 3. The inner diameter of the two sides with positioning grooves 5 is larger than the inner diameter of the middle part without positioning grooves 5, and the outer diameter of the cutting air membrane 4 is kept flush. There are also air inlets 6 on both sides that are connected to an external air pump to maintain internal air pressure. The collar 7 is sleeved on both sides of the cutting air film 4. Its outer diameter is the same as the outer diameter of the inflated cutting air film 4. The outer surface is provided with a blade groove 8 that cooperates with the cutter. The inner surface has an inwardly recessed arc-shaped limiting groove 9. The inflated cutting air film 4 fits into the limiting groove 9 to limit the collar 7. Support frame 10 is consistent with the length of the center roller 1, can be detached and installed on the support frame of the center roller 1, the inside is provided with a chute 11 towards the center roller 1, the chute 11 is provided with a bidirectional screw rod 12, the bidirectional screw rod 12 is connected with the external controller, the chute 11 is also provided with two connecting blocks 13 threaded on the bidirectional screw rod 12, each connecting block 13 is provided with a jaw 14 at the front end, the jaw 14 has an adjustable tightness structure for clamping different sizes of the sleeve ring 7 and cooperating with the sleeve ring 7.
[0011] Working principle: The un-inflated cutting air film 4 is sleeved on the center roller 1, and the two ends of the two are aligned, the positioning groove 5 on the cutting air film 4 corresponds to the positioning edge 3 on the center roller 1, so that the subsequent cutting air film 4 can be accurately installed on the center roller 1; The two jaws 14 of the support frame 10 are used to clamp the two sleeve rings 7, the bidirectional screw rod 12 drives the connecting block 13 and the jaw 14, and then drives the two sleeve rings 7 to move simultaneously to the middle in the chute 11, and stops moving after reaching the appropriate position, at this time the knife groove 8 above the sleeve ring 7 is aligned with the cutter, and the preparation for the subsequent cutting is completed; The cutting air film 4 is inflated through the inflation port 6, after the cutting air film 4 is inflated, the inner wall is attached to the outer wall of the center roller 1, and the cutting air film 4 is attached to the center roller 1 through the cooperation of the positioning edge 3 and the positioning groove 5, at the same time, the cutting air film 4 at the position of the sleeve ring 7 is limited by the inner wall of the sleeve ring 7, and cannot be flush with the positions on both sides, the outer diameter of the sleeve ring 7 at this position is flush with the cutting air film 4 on both sides and is attached, the cutting air film 4 at this position is attached to the limiting groove 9 of the sleeve ring 7 upward, which ensures the stability of the sleeve ring 7 position, during the inflation process, the cutting air film 4 gradually expands and tightly attaches to the outer wall of the center roller 1, the cooperation of the positioning edge 3 and the positioning groove 5 makes the cutting air film 4 not move in the axial direction, and the cutting air film 4 at the position of the sleeve ring 7 can only maintain a stable shape at this position due to the limitation of the limiting groove 9 of the inner wall of the sleeve ring 7, thereby ensuring the fixation of the sleeve ring 7 position; During the inflation process of the cutting air film 4, the cutting air film 4 has a certain supporting effect on the sleeve ring 7, the jaws 14 on the support frame 10 are loosened, the bidirectional screw rod 12 controls the two jaws 14 to move outward, after the cutting air film 4 is inflated, the whole support frame 10 is taken off, reducing the influence on the copper foil ear material cutting; The center roller 1 drives the cutting air film 4 to operate, the cutter and the knife groove 8 on the sleeve ring 7 cooperate to cut the copper foil ear material, the center roller 1 rotates under the drive of the motor, drives the cutting air film 4 and the sleeve ring 7 to rotate together, the cutter cooperates with the knife groove 8 on the sleeve ring 7 to cut the copper foil ear material; When it is necessary to adjust the cutting position or width of the ear material, the air pressure inside the cutting air film 4 is reduced through the air inlet 6, causing the shape of the cutting air film 4 to change. At this time, the left and right positions of the collar 7 can be adjusted by the gripper 14 on the support frame 10. After adjusting to the appropriate position, air is injected into the cutting air film 4 again, and the cutting air film 4 returns to its shape and fits tightly with the collar 7. This achieves stepless adjustment of the cutting position and width of the ear material without the need to replace the cutting roller or collar 7, thus improving the adaptability and flexibility of the device.
[0012] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The various components mentioned in this invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A cutting device for electrolytic copper foil ear material, characterized in that, The application relates to a cutting air film device, which comprises a center roller (1) and a cutting air film (4) sleeved on the center roller (1), the two ends of the center roller (1) are provided with positioning edges (3) which are attached to the center roller (1), the length of the cutting air film (4) is the same as that of the center roller (1), the contact surface of the cutting air film (4) and the center roller (1) is provided with positioning grooves (5) which are matched with the positioning edges (3), the two sides of the cutting air film (4) are provided with sleeve rings (7) which are sleeved thereon, the outer diameter of the sleeve ring (7) is the same as that of the cutting air film (4) after being inflated, the sleeve ring (7) is provided with a cutter groove (8) which is matched with a cutter for cutting copper foil ear materials.
2. The electrolytic copper foil tab cutting device according to claim 1, wherein The center roller (1) is in a cylindrical shape, the diameters of the two ends of the center roller (1) provided with the positioning edges (3) are smaller than that of the middle part without the positioning edges (3), the cross section of the cutting air film (4) is annular, the inner diameters of the two sides provided with the positioning grooves (5) are larger than that of the middle part without the positioning grooves (5), and the outer diameter of the cutting air film (4) is kept flush.
3. The electrolytic copper foil tab cutting device according to claim 2, wherein The positioning edges (3) are fixedly arranged on the circumferential surface of the center roller (1), the positioning edges (3) are distributed in a cross shape on the surface of the center roller (1), and the positioning grooves (5) are correspondingly arranged above and below the positioning grooves (5) and used for connecting the cutting air film (4) and the center roller (1).
4. The electrolytic copper foil tab cutting device according to claim 3, wherein The two sides of the cutting air film (4) are provided with inflation openings (6) which are connected with air pumps in the outside world and used for keeping the air pressure in the cutting air film (4).
5. The electrolytic copper foil tab cutting device according to claim 4, wherein The outer surface of the sleeve ring (7) is provided with the cutter groove (8) which is matched with the cutter, and the inner surface is provided with an arc-shaped limiting groove (9) which is recessed inward, the cutting air film (4) after being inflated is attached to the limiting groove (9) of the sleeve ring (7) and used for limiting the sleeve ring (7).
6. The electrolytic copper foil tab cutting device according to claim 5, wherein The device further comprises a support frame (10) which is consistent with the length of the center roller (1), the support frame (10) is detachably arranged on a support frame for arranging the center roller (1), the support frame (10) is internally provided with a sliding groove (11) which faces the center roller (1), the sliding groove (11) is internally provided with a bidirectional screw rod (12), the sliding groove (11) is internally provided with two connecting blocks (13), the connecting blocks (13) are threadedly connected to the bidirectional screw rod (12), the front end of each connecting block (13) is provided with a clamping jaw (14), and the clamping jaw (14) is matched with the sleeve ring (7).
7. The electrolytic copper foil tab cutting device according to claim 6, wherein The bidirectional screw rod (12) is connected with a controller in the outside world, and the clamping jaw (14) is provided with a structure which can be adjusted in tightness and used for clamping sleeve rings (7) with different sizes.
8. The electrolytic copper foil tab cutting device according to claim 7, wherein The cutting air film (4) is made of high-strength PVC mesh cloth.
9. The method of claim 1-8, wherein the method further comprises: The device comprises the following steps: S1, the cutting air film (4) which is not inflated is sleeved on the center roller (1), and the two ends of the cutting air film (4) and the center roller (1) are aligned; S2, two sleeve rings (7) are clamped by the two clamping jaws (14) of the support frame (10), the bidirectional screw rod (12) drives the connecting blocks (13) and the clamping jaws (14) to move the two sleeve rings (7) to the middle, and the movement is stopped when the cutter grooves (8) above the sleeve rings (7) are aligned with the cutter. S31, inflate the cutting air film (4) through the inflation port (6), after the cutting air film (4) is inflated, the inner wall is attached to the outer wall of the center roller (1), the cutting air film (4) is attached to the center roller (1) through the cooperation of the positioning rib (3) and the positioning groove (5), meanwhile, the cutting air film (4) at the position of the sleeve ring (7) cannot be flush with the two sides under the limitation of the inner wall of the sleeve ring (7), the outer diameter of the sleeve ring (7) at this position is flush with and attached to the cutting air film (4) on both sides, the cutting air film (4) at this position is attached to the limiting groove (9) of the sleeve ring (7) upward, which ensures the stability of the sleeve ring (7) position; S32, during the inflation process of the cutting air film (4), the cutting air film (4) has a certain supporting effect on the sleeve ring (7), the clamping jaw (14) on the supporting frame (10) releases the sleeve ring (7), the bidirectional screw rod (12) controls the two clamping jaws (14) to move outward, after the cutting air film (4) is inflated, the supporting frame (10) is removed as a whole, which reduces the influence on the cutting of the copper foil lug material; S4, control the center roller (1) to drive the cutting air film (4) to run, the cutter and the cutter groove (8) on the sleeve ring (7) cooperate to cut the copper foil lug material; S5, adjust the left and right positions of the sleeve ring (7) through the clamping jaw (14) on the supporting frame (10) by reducing the air pressure in the cutting air film (4) through the inflation port (6), after inflation again, the sleeve ring (7) is still attached to the cutting air film (4), realizing stepless adjustment.