Splicing smoothing roller
By using the technical means of splicing smoothing rollers during battery manufacturing, the problem of easy wrinkle on the electrode position of the current collector substrate welding is solved, and the processing quality and pass rate of the product are improved.
Patent Information
- Application Number
- CN202420536440.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-19
AI Technical Summary
During the preparation of secondary battery, after uneven rolls or coating, wrinkles are prone to occur at the position of the welding ears of the current collector substrate, resulting in product scrapping and reducing product pass rate.
A splicing smoothing roller is used, including a roller shaft and a roller sleeve. The roller shaft consists of a rotating shaft and a roller body, which is arranged on the rotating shaft and rotates freely about the rotating shaft. The roller sleeve includes a flexible smoothing sleeve and a spacer that smooths and unfolds the wrinkles thereon by applying pressure to the current collector foil before being slit.
Through the pressure effect of the flexible smoothing sleeve, the wrinkles on the current collecting foil are effectively smoothed, the processing quality is improved, the product scrapping is prevented due to wrinkling, and the product pass rate is improved.
Smart Images
Figure CN222483439U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of battery manufacturing, and in particular to a splicing smoothing roller. Background Art
[0002] Now electric vehicles have entered a period of rapid development. Secondary batteries have become the preferred power source for new energy vehicles due to their high energy density, long cycle life, and environmental friendliness.
[0003] In the preparation process of secondary batteries, due to the process characteristics, when the roller is uneven or the coating passes through the oven, the current collector substrate is prone to wrinkling at the welding ear position, resulting in the scrapping of products due to wrinkling in subsequent processing steps, reducing the product qualification rate. Summary of the invention
[0004] The embodiment of the present application provides a splicing and smoothing roller to solve the problem in the related art that the current collector substrate is easily wrinkled before slitting, resulting in the scrapping of products due to wrinkling in subsequent processing steps, thereby reducing the qualified rate of products.
[0005] The embodiment of the present application provides a splicing smoothing roller, comprising:
[0006] A roller shaft, the roller shaft comprising a rotating shaft and a roller pressing body, the roller pressing body being sleeved on the rotating shaft and freely rotating around the rotating shaft;
[0007] The roller sleeve comprises a flexible smoothing sleeve sleeved on the rolling body, and a spacer sleeve sleeved on the rolling body and axially positioning the flexible smoothing sleeve on the rolling body.
[0008] In some embodiments: the flexible smoothing sleeves are provided in plurality, and the plurality of flexible smoothing sleeves are sequentially spaced apart on the outer periphery of the rolling body along the axis direction of the rolling body;
[0009] There are multiple spacers, and one flexible smoothing sleeve is axially positioned between two adjacent spacers.
[0010] In some embodiments: the inner diameter of the spacer is greater than the outer diameter of the rolling body, and both ends of the rolling body are respectively connected with fasteners for axially positioning the flexible smoothing sleeve and the spacer on the rolling body.
[0011] In some embodiments: the fasteners are pressure plates respectively threadedly connected to the two ends of the rolling body, and the two pressure plates move in a direction approaching or moving away from each other to adjust the arch height of the flexible smoothing sleeve.
[0012] In some embodiments: the pressure plate is a circular structure, the pressure plate is located at the end of the rolling body and abuts against the spacer, a threaded hole threadedly connected to the rolling body is provided on the pressure plate, and external threads threadedly connected to the pressure plate are provided at both ends of the rolling body.
[0013] In some embodiments: the flexible smoothing sleeve is a circular ring structure, the side of the flexible smoothing sleeve close to the rolling body is a planar structure or an arc structure, the side of the flexible smoothing sleeve away from the rolling body is an arc structure, and the flexible smoothing sleeve protrudes from the outer surface of the spacer sleeve.
[0014] In some embodiments: the spacer is a tube structure with two ends passing through, and the spacer is made of metal material or hard plastic.
[0015] In some embodiments: the rolling body is a metal hollow tube structure, both ends of the rotating shaft extend out of the rolling body, and a rolling bearing for rotatably supporting the rolling body is fixed on the rotating shaft, and the rolling bearing is located inside the rolling body.
[0016] In some embodiments: an annular groove is formed on the outer wall of the rotating shaft, and a shaft retaining ring is provided in the annular groove to axially position the rolling bearing on the rotating shaft;
[0017] An annular groove is formed on the inner wall of the rolling body, and a hole retaining ring for axially positioning the rolling bearing on the rolling body is provided in the annular groove.
[0018] In some embodiments: the flexible smoothing sleeve is made of rubber material.
[0019] The beneficial effects of the technical solution provided by this application include:
[0020] An embodiment of the present application provides a splicing smoothing roller. The splicing smoothing roller of the present application is provided with a roller shaft, which includes a rotating shaft and a rolling body. The rolling body is sleeved on the rotating shaft and rotates freely around the rotating shaft; the roller sleeve includes a flexible smoothing sleeve sleeved on the rolling body, and a spacer sleeve sleeved on the rolling body and axially positioning the flexible smoothing sleeve on the rolling body.
[0021] Therefore, the splicing smoothing roller of the present application is provided with a roller sleeve on the roller shaft, and the roller sleeve includes a flexible smoothing sleeve sleeved on the roller pressing body, and the flexible smoothing sleeve applies pressure to the current collector foil before being cut, thereby smoothing and unfolding the wrinkles on the current collector foil, thereby improving the processing quality of the current collector foil. A spacer sleeve is also sleeved on the roller pressing body to axially position the flexible smoothing sleeve on the roller pressing body, and the spacer sleeve makes the flexible smoothing sleeve always correspond to the position of the welding pole ear of the current collector foil, thereby preventing it from sliding axially on the roller pressing body. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;
[0024] Figure 2 This is a schematic diagram of the roller structure of an embodiment of the present application.
[0025] Reference numerals:
[0026] 10. Roller shaft; 11. Rotating shaft; 12. Roller body; 20. Roller sleeve; 21. Flexible smoothing sleeve; 22. Spacer sleeve; 23. Fastener. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0028] The embodiment of the present application provides a splicing smoothing roller, which can solve the problem in the related art that the current collector substrate is easily wrinkled before slitting, resulting in product scrapping due to wrinkling in subsequent processing steps, thereby reducing the product qualification rate.
[0029] See also Figure 1 and Figure 2 As shown, an embodiment of the present application provides a splicing smoothing roller, comprising:
[0030] The roller 10 includes a rotating shaft 11 and a rolling body 12, wherein the rolling body 12 is sleeved on the rotating shaft 11 and rotates freely around the rotating shaft 11, the rotating shaft 11 of the roller 10 is fixed on the roller frame for winding the collector foil, and the roller 10 is located at the front of the winding roller.
[0031] The roller sleeve 20 includes a flexible smoothing sleeve 21 sleeved on the rolling body 12 , and a spacer sleeve 22 sleeved on the rolling body 12 and axially positioning the flexible smoothing sleeve 21 on the rolling body 12 .
[0032] The splicing smoothing roller of the embodiment of the present application is provided with a roller cover 20 on the roller shaft 10, and the roller cover 20 includes a flexible smoothing cover 21 which is sleeved on the rolling body 12. The flexible smoothing cover 21 applies pressure to the collector foil before being cut, thereby smoothing and unfolding the wrinkles on the collector foil, thereby improving the processing quality of the collector foil.
[0033] A spacer sleeve 22 is also sleeved on the rolled body 12 to axially position the flexible smoothing sleeve 21 on the rolled body 12 . The spacer sleeve 22 ensures that the flexible smoothing sleeve 21 always corresponds to the position of the collector foil welding ear, thereby preventing the flexible smoothing sleeve 21 from axially sliding on the rolled body 12 .
[0034] In some alternative embodiments: See Figure 1 As shown, an embodiment of the present application provides a splicing smoothing roller, which has a plurality of flexible smoothing sleeves 21 , and the plurality of flexible smoothing sleeves 21 are sequentially spaced apart on the periphery of the rolling body 12 along the axial direction of the rolling body 12 .
[0035] There are multiple spacers 22, and a flexible smoothing sleeve 21 is axially positioned between two adjacent spacers 22. This application is described by taking three flexible smoothing sleeves 21 and four spacers 22 as an example. When a single current collector foil strip after coating is cut into four current collector foil strips as required, a flexible smoothing sleeve 21 is respectively arranged at the incision position between two adjacent current collector foil strips to unfold and smooth the wrinkles on the current collector foil before cutting.
[0036] In some alternative embodiments: See Figure 1 As shown, the embodiment of the present application provides a spliced smoothing roller, the inner diameter of the spacer sleeve 22 of the spliced smoothing roller is larger than the outer diameter of the rolling body 12. The two ends of the rolling body 12 are respectively connected with fasteners 23 for axially positioning the flexible smoothing sleeve 21 and the spacer sleeve 22 on the rolling body 12.
[0037] Specifically, the fastener 23 is a pressing plate threadedly connected to the two ends of the rolling body 12, and the two pressing plates move in a direction of approaching or moving away from each other to adjust the arch height of the flexible smoothing sleeve 21. The pressing plate is a circular structure, and the pressing plate abuts against the spacer 22 located at the end of the rolling body 12. The pressing plate is provided with a threaded hole threadedly connected to the rolling body 12, and the two ends of the rolling body 12 are provided with external threads threadedly connected to the pressing plate.
[0038] In some alternative embodiments: See Figure 1As shown, the embodiment of the present application provides a splicing smoothing roller, the flexible smoothing sleeve 21 of the splicing smoothing roller is a circular ring structure, the side of the flexible smoothing sleeve 21 close to the rolling body 12 is a plane structure or an arc structure, the side of the flexible smoothing sleeve 21 away from the rolling body 12 is an arc structure, and the flexible smoothing sleeve 21 protrudes from the outer surface of the spacer sleeve 22. The flexible smoothing sleeve 21 is made of rubber material, wherein the rubber material can be selected from conventional materials in the field, and is not specifically limited here.
[0039] The spacer 22 is a tubular structure with two ends passing through, and the spacer 22 is made of metal material or hard plastic, wherein the metal material and hard plastic can be selected from conventional materials in the field, and no specific limitation is made here. The present application uses an assembly method to assemble the required spacer 22 on the roll-pressed body 12, and assembles the flexible smoothing sleeve 21 at the position where the collector foil is welded to the pole ear, and adjusts the arc of the flexible smoothing sleeve 21 by the pressure plates on both sides, and flattens the wrinkles of the collector foil at the position where the flexible smoothing sleeve 21 is arched and welded to the pole ear.
[0040] In some alternative embodiments: See Figure 2 As shown, an embodiment of the present application provides a splicing smoothing roller, the rolling body 12 of the splicing smoothing roller is a metal hollow tube structure, both ends of the rotating shaft 11 extend out of the outside of the rolling body 12, and a rolling bearing (not shown in the figure) for rotatably supporting the rolling body 12 is fixed on the rotating shaft 11, and the rolling bearing is located inside the rolling body 12.
[0041] An annular groove (not shown in the figure) is provided on the outer wall of the rotating shaft 11, and a shaft retaining ring (not shown in the figure) is provided in the annular groove for axially positioning the rolling bearing on the rotating shaft 11; an annular groove (not shown in the figure) is provided on the inner wall of the rolling body 12, and a hole retaining ring (not shown in the figure) is provided in the annular groove for axially positioning the rolling bearing on the rolling body 12.
[0042] How it works
[0043] An embodiment of the present application provides a splicing smoothing roller. The splicing smoothing roller of the present application is provided with a roller shaft 10, which includes a rotating shaft 11 and a rolling body 12, and the rolling body 12 is sleeved on the rotating shaft 11 and rotates freely around the rotating shaft 11; a roller sleeve 20, which includes a flexible smoothing sleeve 21 sleeved on the rolling body 12, and a spacer sleeve 22 sleeved on the rolling body 12 and axially positioning the flexible smoothing sleeve 21 on the rolling body 12.
[0044] Therefore, the splicing smoothing roller of the present application is provided with a roller sleeve 20 on the roller shaft 10, and the roller sleeve 20 includes a flexible smoothing sleeve 21 sleeved on the rolling body 12, and the flexible smoothing sleeve 21 applies pressure to the current collector foil before being cut, thereby smoothing and unfolding the wrinkles on the current collector foil, thereby improving the processing quality of the current collector foil. A spacer sleeve 22 is also sleeved on the rolling body 12 to axially position the flexible smoothing sleeve 21 on the rolling body 12, and the spacer sleeve 22 makes the flexible smoothing sleeve 21 always correspond to the position of the welding pole ear of the current collector foil, and prevents it from axially sliding on the rolling body 12.
[0045] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0046] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0047] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
Claims
1. A splicing smoothing roller, characterized in that: include: A roller shaft (10), the roller shaft (10) comprising a rotating shaft (11) and a roller body (12), the roller body (12) being sleeved on the rotating shaft (11) and freely rotating around the rotating shaft (11); A roller sleeve (20), the roller sleeve (20) comprising a flexible smoothing sleeve (21) sleeved on the rolling body (12), and a spacer sleeve (22) sleeved on the rolling body (12) and axially positioning the flexible smoothing sleeve (21) on the rolling body (12).
2. A splicing smoothing roller according to claim 1, characterized in that: The flexible smoothing sleeves (21) are provided in plurality, and the plurality of flexible smoothing sleeves (21) are sequentially spaced apart on the outer periphery of the rolling body (12) along the axial direction of the rolling body (12); A plurality of the spacers (22) are provided, and one flexible smoothing sleeve (21) is axially positioned between two adjacent spacers (22).
3. A splicing smoothing roller according to claim 1 or 2, characterized in that: The inner diameter of the spacer sleeve (22) is greater than the outer diameter of the rolling body (12), and both ends of the rolling body (12) are respectively connected with fasteners (23) for axially positioning the flexible smoothing sleeve (21) and the spacer sleeve (22) on the rolling body (12).
4. A splicing and smoothing roller as claimed in claim 3, characterized in that: The fastener (23) is a pressure plate respectively threadedly connected to the two ends of the rolling body (12), and the two pressure plates move in a direction approaching or moving away from each other to adjust the arch height of the flexible smoothing sleeve (21).
5. A splicing and smoothing roller as claimed in claim 4, characterized in that: The pressure plate is a circular structure, located at the end of the roller body (12) and abutting against the spacer (22), and a threaded hole threadedly connected to the roller body (12) is provided on the pressure plate, and external threads threadedly connected to the pressure plate are provided at both ends of the roller body (12).
6. A splicing smoothing roller according to claim 1, characterized in that: The flexible smoothing sleeve (21) is a circular ring structure, the side of the flexible smoothing sleeve (21) close to the rolling body (12) is a plane structure or an arc structure, the side of the flexible smoothing sleeve (21) away from the rolling body (12) is an arc structure, and the flexible smoothing sleeve (21) protrudes from the outer surface of the spacer sleeve (22).
7. A splicing and smoothing roller according to claim 1, characterized in that: The spacer (22) is a tubular structure with two ends passing through, and the spacer (22) is made of metal material or hard plastic.
8. The splicing smoothing roller according to claim 1, characterized in that: The rolling body (12) is a metal hollow tube structure, the two ends of the rotating shaft (11) extend out of the rolling body (12), and a rolling bearing for rotatably supporting the rolling body (12) is fixed on the rotating shaft (11), and the rolling bearing is located inside the rolling body (12).
9. A splicing and smoothing roller according to claim 8, characterized in that: An annular groove is formed on the outer wall of the rotating shaft (11), and a shaft retaining ring is provided in the annular groove for axially positioning the rolling bearing on the rotating shaft (11); An annular groove is provided on the inner wall of the rolling body (12), and a hole retaining ring for axially positioning the rolling bearing on the rolling body (12) is provided in the annular groove.
10. The splicing and smoothing roller according to claim 1, characterized in that: The flexible smoothing sleeve (21) is made of rubber material.