Steel roller telescopic sleeve and cutting device
By designing an adjustable-length telescopic sleeve for the steel roller, the problems of scratches on the laser-cut steel roller and fixed spacing of the cutting groove were solved, enabling efficient and low-cost electrode cutting and improving production flexibility and precision.
Patent Information
- Application Number
- CN202520160019.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In existing technologies, laser cutting of electrode sheets can easily scratch the supporting steel rollers, and the fixed spacing of the cutting grooves on the steel rollers makes it difficult to adapt to the needs of electrode sheets of different widths, resulting in low production efficiency, high costs, and poor flexibility.
A steel roller telescopic sleeve was designed, including a first roller sleeve and a second roller sleeve, which are connected by a variable pitch part to achieve adjustable length. It is equipped with a cutting groove to avoid laser directly scratching the steel roller and to adapt to the needs of electrode sheets of different widths.
This avoids scratches on the steel roller surface, reduces production costs, improves cutting compatibility and production efficiency, and ensures the precision and quality of electrode cutting.
Smart Images
Figure CN223903174U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of battery processing, and in particular to a steel roller telescopic sleeve and a cutting device. BACKGROUND
[0002] In the battery production process, the electrode sheet cutting process is a very critical link. The cutting quality of the electrode sheet is directly related to the performance and safety of the battery. At present, laser is widely used in the industry to cut the electrode sheet placed on the supporting steel roller. This cutting method has many advantages such as high efficiency and precision, and can meet the requirements of large-scale production for electrode sheet cutting precision and speed.
[0003] However, in the actual production process, a series of problems need to be solved. When the laser cuts the electrode sheet on the supporting steel roller, the laser can penetrate the electrode sheet, thereby causing scratches on the supporting steel roller below. As an important component for carrying the electrode sheet, the integrity of the surface of the supporting steel roller is crucial. Once scratches appear, not only the service life of the steel roller will be reduced, but also the precision and quality of subsequent electrode sheet cutting will be affected due to the uneven surface. In order to ensure the smooth progress of production and product quality, it is necessary to frequently replace the supporting steel roller. This operation not only increases the production cost, but also causes the interruption of the production line, seriously affects the production efficiency, and reduces the economic benefit of the enterprise.
[0004] In addition, the laser usually directly acts on the surface of the steel roller for cutting, and the position of the laser is the cutting groove at both ends of the steel roller, that is, the circumferential groove at both ends of the steel roller. In actual production, the width of the electrode sheet is not fixed and varies according to different battery models, production requirements, etc. However, the cutting groove spacing of the existing steel roller is fixed. When the width of the electrode sheet is different, it is difficult to find a cutting groove with a suitable spacing that completely matches the width of the electrode sheet. This leads to the need to prepare multiple steel rollers with different cutting groove spacings when facing the task of cutting electrode sheets with multiple widths, increasing the difficulty and cost of production management. Moreover, frequent replacement of the steel roller to adapt to electrode sheets with different widths further reduces the production efficiency, and the entire electrode sheet cutting process has obvious deficiencies in cutting compatibility, which seriously restricts the flexibility and efficiency of production. CONTENT OF THE INVENTION
[0005] Therefore, the purpose of the application is to provide a steel roller telescopic sleeve and a cutting device to solve the technical problems of affecting production efficiency and restricting production flexibility and efficiency caused by design limitations in the existing electrode sheet cutting process.
[0006] To achieve the above technical purpose, the application provides a steel roller telescopic sleeve, which comprises a roller sleeve body.
[0007] The roller sleeve body comprises a first roller sleeve and a second roller sleeve.
[0008] The first roller sleeve and the second roller sleeve are both internally ringed to be sleeved on the surface of the steel roller;
[0009] The first roller sleeve is connected with a first distance adjusting part at one end in the axial direction;
[0010] The second roller sleeve is connected with a second distance adjusting part at one end in the axial direction, which can cooperate with the first distance adjusting part to adjust the distance between the one end of the first roller sleeve and the one end of the second roller sleeve;
[0011] The outer surface of the first roller sleeve and / or the outer surface of the second roller sleeve are both annularly provided with cutting grooves.
[0012] Further, the first roller sleeve and the second roller sleeve can be connected or disconnected with each other through the cooperation of the first distance adjusting part and the second distance adjusting part.
[0013] Further, the first distance adjusting part and the second distance adjusting part are nested rotating structures that can be nested and rotationally connected with each other.
[0014] Further, the first distance adjusting part and the second distance adjusting part are interlocking bodies that can be interlocked.
[0015] Further, the interlocking body is a concave-convex structure.
[0016] Further, the interlocking body connected with the first roller sleeve comprises a plurality of first convex teeth.
[0017] The plurality of first convex teeth are arranged parallel to the axial direction of the first roller sleeve and are circumferentially spaced apart around the circumference of the first roller sleeve.
[0018] The interlocking body connected with the second roller sleeve comprises a plurality of second convex teeth.
[0019] The plurality of second convex teeth are arranged parallel to the axial direction of the second roller sleeve and are circumferentially spaced apart around the circumference of the second roller sleeve.
[0020] The first convex teeth form first interlocking grooves for the second convex teeth to be interlocked therein.
[0021] The second convex teeth form second interlocking grooves for the first convex teeth to be interlocked therein.
[0022] Further, the first roller sleeve or the second roller sleeve is provided with a fastening structure for fastening the first roller sleeve and the second roller sleeve to the surface of the steel roller.
[0023] Further, the fastening structure comprises an anti-extrusion gap.
[0024] The anti-pressing gap is arranged at the other end of the first roller sleeve and the other end of the second roller sleeve respectively;
[0025] One side of the anti-pressing gap is provided with a threaded hole, and the other side is provided with a through hole penetrating the first roller sleeve or the second roller sleeve;
[0026] The threaded fastener is arranged on the through hole;
[0027] One end of the threaded fastener is inserted into the threaded hole and connected with the threaded hole, so as to shorten the distance of the anti-pressing gap, so as to tightly hold the surface of the steel roller.
[0028] Further, the fastening structures on the first roller sleeve and the second roller sleeve are at least two and are distributed at intervals in the circumference;
[0029] The anti-pressing gap extends into the cutting groove.
[0030] The application also discloses a cutting device, which comprises a device body and the steel roller telescopic sleeve.
[0031] The steel roller telescopic sleeve is mounted on the device body.
[0032] From the above technical solutions, the steel roller telescopic sleeve designed by the application has the following beneficial effects:
[0033] 1. The roller sleeve body can be sleeved on the surface of the steel roller to support the pole piece, so that the pole piece cutting is completed on the roller sleeve body, the surface of the steel roller is avoided to be damaged, and the pole piece is avoided to be scratched after the surface of the steel roller is scratched in the production. Compared with frequent replacement of the steel roller, the replacement cost of the roller sleeve body is lower, and the production cost is effectively reduced.
[0034] 2. The first roller sleeve and the second roller sleeve in the roller sleeve body are connected through the first distance changing part and the second distance changing part to realize distance changing cooperation, so that the length of the roller sleeve body is variable, and better cutting compatibility is realized. BRIEF DESCRIPTION OF DRAWINGS
[0035] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0036] Figure 1 It is a perspective view of a steel roller telescopic sleeve provided in the application when the first roller sleeve and the second roller sleeve are at a first length;
[0037] Figure 2 Figure 7 is an exploded schematic view of a steel roller telescopic sleeve according to an embodiment of the present application, in which a first roller sleeve and a second roller sleeve are in a first length;
[0038] Figure 3 Figure 8 is a first perspective view of a steel roller telescopic sleeve according to an embodiment of the present application, in which a first roller sleeve and a second roller sleeve are in a first length;
[0039] Figure 4 Figure 9 is a second perspective view of a steel roller telescopic sleeve according to an embodiment of the present application, in which a first roller sleeve and a second roller sleeve are in a first length;
[0040] Figure 5 Figure 10 is an enlarged schematic view of position A in Figure 8; Figure 4
[0041] In the figure: 11, first roller sleeve; 12, second roller sleeve; 13, cutting groove; 14, fastening structure; 141, anti-extrusion gap; 142, threaded hole; 143, via hole; 21, first variable pitch part; 211, first protruding tooth; 212, first embedding groove; 22, second variable pitch part; 221, second protruding tooth; 222, second embedding groove. DETAILED DESCRIPTION
[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the embodiments of the present application.
[0043] In the description of the embodiments of the present application, it should be noted that the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0044] In the description of the embodiments of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be replaceably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0045] The embodiments of the present application disclose a steel roller telescopic sleeve.
[0046] Please refer to Figure 1 An embodiment of the steel roller telescopic sleeve provided in the embodiments of the present application comprises:
[0047] The roller sleeve body.
[0048] The roller sleeve body comprises a first roller sleeve 11 and a second roller sleeve 12.
[0049] The first roller sleeve 11 and the second roller sleeve 12 both have an inner ring structure to be sleeved on the surface of the steel roller; the first roller sleeve 11 and the second roller sleeve 12 are used to support the pole piece, so that the pole piece wound on the roller sleeve body does not deform.
[0050] One end of the first roller sleeve 11 in the axial direction is connected with a first distance adjusting part 21; one end of the second roller sleeve 12 in the axial direction is connected with a second distance adjusting part 22 capable of cooperating with the first distance adjusting part 21 to adjust the distance between the one end of the first roller sleeve 11 and the one end of the second roller sleeve 12, so that the length of the roller sleeve body is variable.
[0051] The outer surface of the first roller sleeve 11 and / or the outer surface of the second roller sleeve 12 are both annularly provided with a cutting groove 13 (the cutting groove 13 is a groove). The existence of the cutting groove 13 makes the laser more accurately act on the preset area during cutting, reduces the risk of scratches caused by the laser penetrating the pole piece to other parts of the roller sleeve, prolongs the service life of the roller sleeve, further guarantees the precision and quality of the pole piece cutting, and improves the economic benefit and production flexibility of the enterprise. Furthermore, since the cutting groove 13 has a certain width, the position of the pole piece on the cutting groove 13 can be adjusted to adapt to the cutting needs of different pole pieces with small changes in width. When facing the cutting needs of different pole pieces with large changes in width, the length of the roller sleeve body can be adjusted to meet the needs.
[0052] The length of the first roller sleeve 11 and the second roller sleeve 12 can be designed to change according to actual needs, such as Figure 1 and Figure 2 as shown, the design size is large; or as Figure 3 and Figure 4 as shown, the design size is small.
[0053] From the above technical solution can be seen, the steel roller telescopic sleeve designed by the application has the following beneficial effects:
[0054] 1. The roller sleeve body can be sleeved on the surface of the steel roller to support the pole piece, so that the pole piece cutting is completed on the roller sleeve body, the surface of the steel roller is prevented from being damaged, and the pole piece is prevented from being scratched after the production of the surface scratch type; compared with frequent replacement of the steel roller, the replacement cost of the roller sleeve body is low, thereby effectively reducing the production cost.
[0055] 2. The first roller sleeve 11 and the second roller sleeve 12 in the roller sleeve body are connected through the first variable distance part 21 and the second variable distance part 22 to realize variable distance matching, so that the length of the roller sleeve body is variable, thereby realizing better cutting compatibility (good compatibility for laser cutting or etching of different width pole pieces).
[0056] The above is an embodiment one of the steel roller telescopic sleeve provided by the embodiment of the application, and the following is an embodiment two of the steel roller telescopic sleeve provided by the embodiment of the application, please refer to Figures 1 to 5 .
[0057] Based on the scheme of the above embodiment one:
[0058] Further, as Figures 1 to 4 indicated, the first roller sleeve 11 and the second roller sleeve 12 can be connected or disconnected through the cooperation of the first variable distance part 21 and the second variable distance part 22. When the first roller sleeve 11 or the second roller sleeve 12 needs to be replaced, it can be replaced alone, thereby improving the replacement efficiency and reducing the cost.
[0059] Further, the first variable distance part 21 and the second variable distance part 22 can be a nested rotating structure that can be nested and rotationally connected.
[0060] Specifically, the first variable distance part 21 can be a nested rotating structure with external threads, and the second variable distance part 22 can be a nested rotating structure with internal threads. The second variable distance part 22 can be nested outside the first variable distance part 21 and rotationally connected to the first variable distance part 21 by rotating. The first variable distance part 21 can be an annular flange, the inner surface of which is flush with the inner surface of the first roller sleeve 11, and the outer surface of which forms an annular gap with the outer surface of the first roller sleeve 11 with a certain thickness. The second variable distance part 22 corresponds to an annular flange, the outer surface of which is flush with the outer surface of the second roller sleeve 12, and the thickness of the second variable distance part 22 is consistent with the annular gap. The annular flange design can ensure that when the first variable distance part 21 and the second variable distance part 22 cooperate, a circumferential surface local support force is generated, which well supports the upper pole piece in the circumferential direction without deformation (so that the first variable distance part 21 and the second variable distance part 22 after cooperation can realize good support effect on the pole piece, realize covering the steel roller without deforming the pole piece, and prevent the laser from scratching the surface of the steel roller).
[0061] Further, the first variable distance part 21 and the second variable distance part 22 are interfitting bodies capable of interfitting, and the length of the roller cover body is changed according to the interfitting degree.
[0062] Further, the interfitting body can be designed as a concave-convex structure.
[0063] Further, as shown in the concave-convex structure design, Figure 2 the interfitting body connected to the first roller cover 11 includes a plurality of first convex teeth 211; the plurality of first convex teeth 211 are arranged parallel to the axial direction of the first roller cover 11 and are circumferentially spaced around the first roller cover 11.
[0064] The interfitting body connected to the second roller cover 12 includes a plurality of second convex teeth 221; the plurality of second convex teeth 221 are arranged parallel to the axial direction of the second roller cover 12 and are circumferentially spaced around the second roller cover 12.
[0065] First interfitting grooves 212 are formed between the first convex teeth 211 for the second convex teeth 221 to interfit, and second interfitting grooves 222 are formed between the second convex teeth 221 for the first convex teeth 211 to interfit.
[0066] The concave-convex structure design can achieve a very fitting interfitting connection, and the first interfitting grooves 212 and the second interfitting grooves 222 can be at least partially filled, ensuring that when the first variable distance part 21 and the second variable distance part 22 are fitted, a circumferential surface local support force is generated, which well supports the upper pole piece in the circumferential direction without deforming (so that the first variable distance part 21 and the second variable distance part 22 after fitting can achieve good support effect on the pole piece, realize covering the steel roller without deforming the pole piece, and avoid laser scratching the surface of the steel roller).
[0067] Further, as shown in the concave-convex structure design, Figures 1 to 4 the first roller cover 11 or the second roller cover 12 is provided with a fastening structure 14 for fastening the first roller cover 11 and the second roller cover 12 to the surface of the steel roller.
[0068] The fastening structure 14 ensures that the first roller cover 11 and the second roller cover 12 are closely attached to the steel roller, avoiding displacement or loosening of the roller cover due to factors such as vibration and friction during cutting, ensuring stable cutting operation. Stable roller cover installation can reduce the position deviation of the pole piece caused by the shaking of the roller cover, so that the laser can cut the pole piece more accurately, improve the precision and consistency of the pole piece cutting, and ensure the production quality of the battery. The fastening structure 14 makes the installation and disassembly of the roller cover convenient and fast. When the roller cover needs to be maintained, cleaned or replaced due to wear, the operation can be efficiently completed, reducing downtime and improving production efficiency.
[0069] Further, as shown in the concave-convex structure design, Figure 5As shown, the design of the fastening structure 14 includes an anti-pinch gap 141.
[0070] Anti-squeezing gaps 141 are respectively opened at the other end of the first roller sleeve 11 and the other end of the second roller sleeve 12. One side of the anti-squeezing gap 141 is provided with a threaded hole 142, and the other side is provided with a through hole 143 that passes through the first roller sleeve 11 or the second roller sleeve 12.
[0071] A threaded fastener (not shown in the figure) (which may be a screw, bolt, etc.) is inserted through the through hole 143; one end of the threaded fastener extends into the threaded hole 142 and is connected to the threaded hole 142 to shorten the gap of the anti-extrusion gap 141 so as to hold the first roller sleeve 11 or the second roller sleeve 12 tightly to the surface of the steel roller.
[0072] When the first roller sleeve 11 or the second roller sleeve 12 needs to be installed on the surface of the steel roller, the roller sleeve is first placed on the steel roller so that the anti-extrusion gap 141 is in the appropriate position. Then, one end of the threaded fastener is screwed into the threaded hole 142. As the threaded fastener is screwed in, it generates opposing tensions on both sides of the anti-extrusion gap 141. This tension causes the gap of the anti-extrusion gap 141 to gradually shorten, thereby making the inner wall of the first roller sleeve 11 or the second roller sleeve 12 tightly fit against the surface of the steel roller, achieving the purpose of firmly holding the roller sleeve on the steel roller (by reducing the circumference of the roller sleeve end, the roller sleeve is secured to the surface of the steel roller, which facilitates disassembly and assembly).
[0073] By using the anti-extrusion gap 141 for fixation, it is also possible to prevent wrinkles from forming at both ends of the roller sleeve body and pressing against the surface of the material roll.
[0074] Furthermore, such as Figures 1 to 4 As shown, at least two fastening structures 14 are provided on both the first roller sleeve 11 and the second roller sleeve 12 (see Appendix to this application). Figures 1 to 4 To provide two, two anti-extrusion gaps 141 are respectively opened at the other end of the first roller sleeve 11 and the second roller sleeve 12, and they are distributed circumferentially.
[0075] Multiple fastening structures 14 are circumferentially spaced, ensuring more uniform force distribution on the first roller sleeve 11 and the second roller sleeve 12 when fastened to the steel roller surface. This effectively prevents deformation of the roller sleeves due to large forces at a single point or in a localized area. Maintaining the shape accuracy of the roller sleeves is crucial for ensuring the accuracy of electrode cutting, preventing deformation of the roller sleeves from affecting the flatness of the electrode and the cutting effect.
[0076] Furthermore, such as Figure 3 As shown, the anti-compression gap 141 extends into the cutting groove 13. Appropriately increasing the length of the anti-compression gap 141 can improve the fastening effect.
[0077] The application further discloses a cutting device, which comprises a device body and a steel roller telescopic sleeve.
[0078] The steel roller telescopic sleeve and the cutting device are described in detail above. For those skilled in the art, the specific implementation manners and application scopes can be changed according to the idea of the embodiments of the application. In conclusion, the content of the specification should not be understood as a limitation of the application.
Claims
1. A steel roller expansion sleeve characterized by, The roll sleeve body comprises a first roll sleeve (11) and a second roll sleeve (12); The first roll sleeve (11) and the second roll sleeve (12) are both provided with an inner ring structure to be sleeved on the surface of a steel roll; The first roll sleeve (11) is connected with a first distance adjusting part (21) at one end in the axial direction; The second roll sleeve (12) is connected with a second distance adjusting part (22) at one end in the axial direction, which can cooperate with the first distance adjusting part (21) to adjust the distance between the one end of the first roll sleeve (11) and the one end of the second roll sleeve (12); The outer surface of the first roll sleeve (11) and / or the outer surface of the second roll sleeve (12) are both provided with cutting grooves (13). The first roll sleeve (11) and the second roll sleeve (12) can be connected or disconnected through the cooperation of the first distance adjusting part (21) and the second distance adjusting part (22).
2. The steel roller expander sleeve of claim 1, wherein, The first distance adjusting part (21) and the second distance adjusting part (22) are a nested rotating structure that can be nested and rotatingly connected with each other.
3. The steel roller expander sleeve of claim 1, wherein, The first distance adjusting part (21) and the second distance adjusting part (22) are an interlocking body.
4. The steel roller expander sleeve of claim 1 wherein, The interlocking body is a concave-convex structure.
5. The steel roller expander sleeve of claim 4, wherein, The interlocking body connected with the first roll sleeve (11) comprises a plurality of first convex teeth (211); 6. The steel roller expander sleeve of claim 5 wherein, The plurality of first convex teeth (211) are arranged parallel to the axial direction of the first roll sleeve (11) and are circumferentially spaced around the circumference of the first roll sleeve (11); The interlocking body connected with the second roll sleeve (12) comprises a plurality of second convex teeth (221); The plurality of second convex teeth (221) are arranged parallel to the axial direction of the second roll sleeve (12) and are circumferentially spaced around the circumference of the second roll sleeve (12); The first convex teeth (211) form first interlocking grooves (212) for the second convex teeth (221) to be inserted thereinto; The second convex teeth (221) form second interlocking grooves (222) for the first convex teeth (211) to be inserted thereinto. The first roll sleeve (11) or the second roll sleeve (12) is provided with a fastening structure (14) for fastening the first roll sleeve (11) and the second roll sleeve (12) to the surface of a steel roll.
7. The steel roller expander sleeve of claim 1 wherein, The fastening structure (14) comprises an anti-extrusion gap (141); 8. The steel roller expander sleeve of claim 7, wherein, The anti-extrusion gap (141) is respectively formed at the other end of the first roll sleeve (11) and the other end of the second roll sleeve (12); One side of the anti-extrusion gap (141) is provided with a threaded hole (142), and the other side is provided with a through hole (143) penetrating out of the first roll sleeve (11) or the second roll sleeve (12); A threaded fastener is arranged on the through hole (143); One end of the threaded fastener is inserted into the threaded hole (142) and connected with the threaded hole (142) to shorten the distance of the anti-extrusion gap (141) so as to tightly hold the first roll sleeve (11) or the second roll sleeve (12) to the surface of a steel roll. The fastening structure (14) on the first roll sleeve (11) and the second roll sleeve (12) is provided with at least two circumferentially spaced fastening structures.
9. The steel roller expander sleeve of claim 8, wherein, The anti-pressing gap (141) extends into the cutting groove (13).
10. A cutting device, characterized in that The device body and the steel roller telescopic sleeve as claimed in any one of claims 1 to 9 are included; The steel roller telescopic sleeve is installed on the device body.