Edge warping prevention device for battery diaphragm production
By using the shaping components of the anti-warping device and the liquid cooling device, the problem of battery separator edge warping was solved, achieving stable cooling and efficient production of the separator, improving product quality and equipment flexibility.
Patent Information
- Application Number
- CN202520170157.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In traditional battery separator production, the edges of the separator are prone to curling up, forming black edges, which affects product quality and subsequent slitting processes.
An anti-warping device was designed, including a shaping component and a liquid cooling device. The device prevents the edge of the diaphragm from warping through a limiting groove and a multi-point supported guide component, and achieves uniform cooling through the liquid cooling device.
It effectively prevents the diaphragm edges from curling up, ensures stable cooling and shaping of the diaphragm, improves product quality and consistency, reduces the risk of wrinkles and curling, and extends the service life of equipment.
Smart Images
Figure CN223701615U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery diaphragm production technical field, specifically is used for battery diaphragm production's prevent edge device. BACKGROUND
[0002] Battery diaphragm, as the key component of battery structure, plays a dual role of preventing positive and negative short circuit and promoting ion transmission. In the production process, after the raw material is treated by the extruder, it will enter the forming machine for cooling forming.
[0003] The traditional forming process relies on two sets of forming rollers to extrude and shape the thermoplastic battery diaphragm, and then guides and transports the diaphragm through a series of guide rollers to cool and solidify it during the movement. However, there is a significant problem in this process: the edges of the battery diaphragm extruded by the forming rollers often curl up. When these curled edges pass through the subsequent guide rollers, they may be extruded and folded into double layers, forming so-called "black edges". The appearance of black edges has a non-negligible impact on the quality of the battery diaphragm. In severe cases, the thickening of the edges can cause the battery diaphragm to be thick at both ends and thin in the middle after winding, thereby increasing the risk of wrinkles and challenging the subsequent slitting process.
[0004] In summary, the edge curling problem in battery diaphragm production is a key link that needs to be solved, which directly relates to the final quality and performance of the product. Therefore, a device for preventing edge curling in battery diaphragm production is needed to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a device for preventing edge curling in battery diaphragm production, which effectively prevents the edges of the battery diaphragm from curling up and ensures uniform cooling and shaping of the diaphragm. It solves the problem of black edges formed on the edges of the battery diaphragm in the traditional forming process, which leads to thick ends and thin middle after winding and affects the extraction quality and subsequent slitting.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a device for preventing edge curling in battery diaphragm production, comprising a frame, the frame has a diaphragm body passing through, the frame comprises a chassis, a guide assembly and a shaping assembly, the guide assembly is fixedly installed on the top of the chassis, and the shaping assembly is movably installed on the inner side of the guide assembly; the shaping assembly comprises a shaping frame, a limiting groove is formed on the outer side of the shaping frame, the diaphragm body passes through the limiting groove, and the shaping frame is designed with stainless steel material.
[0007] Preferably, a partition plate is fixedly installed on the inner side of the chassis, the partition plate is fixedly installed on the inner side of the chassis directly below the shaping assembly, and a liquid cooling device matched with the shaping assembly is fixedly installed on the partition plate.
[0008] The design of the fixed installation of the partition plate inside the chassis and the matching liquid cooling device provides effective cooling under the shaping assembly. The liquid cooling device can accurately control the temperature, helping the diaphragm body to cool uniformly during the shaping process, avoiding deformation or edge lifting caused by thermal stress. This advantage ensures that the battery diaphragm has a stable shape when leaving the shaping area, improving the overall quality and consistency of the product.
[0009] Preferably, the guide assembly includes two support frames, the first guide roller is rotatably installed on the top of the opposite side of the two support frames, the third guide roller is rotatably installed on the front and rear ends of the bottom of the opposite side of the two support frames, and the second guide roller is rotatably installed between the two support frames on the opposite side of the first guide roller.
[0010] The combination design of the guide assembly including the support frame, the first guide roller, the second guide roller and the third guide roller provides multi-point support and guidance for the diaphragm body. This design not only helps the diaphragm to be smoothly transmitted on the production line, but also further flattens the diaphragm surface through the rolling action of the rollers, reducing the risk of wrinkles and edge lifting.
[0011] Preferably, the inside of the two support frames is provided with a positioning groove, and the inner wall of the positioning groove is provided with an internal thread.
[0012] The design of the positioning groove inside the support frame and the internal thread on the inner wall provides an accurate positioning and fixing method for the installation of the shaping assembly. By rotating the limiting ring and fixing it on the support frame, the installation is simple and fast, and the stability and reliability of the shaping assembly during work are ensured. This design makes the shaping assembly easy to replace or adjust according to production needs, improving the versatility and flexibility of the equipment.
[0013] Preferably, the diaphragm body passes above the first guide roller, and the two ends of the diaphragm body pass from the opposite sides of the second guide roller and the third guide roller, respectively.
[0014] The design of the diaphragm body's path in the guide assembly ensures that the diaphragm is uniformly supported and guided during transmission. The diaphragm passes from the opposite sides of the second guide roller and the third guide roller, and then passes above the first guide roller. This path setting helps the diaphragm to receive balanced tension in multiple directions, further reducing the possibility of edge lifting and wrinkles. At the same time, this design also makes the diaphragm have been preliminarily flattened before entering the shaping assembly, improving the efficiency and effect of subsequent shaping.
[0015] Preferably, the shaping frame is fixedly installed with a connecting frame at both ends, the connecting frame is movably sleeved with a limiting ring, and the outer wall of the limiting ring is provided with an external thread matched with the internal thread of the inner wall of the positioning groove.
[0016] The design of the connecting frame fixedly installed at both ends of the shaping frame and the movable limiting ring provides a flexible and reliable way for the installation and fixation of the shaping assembly. The external thread on the outer wall of the limiting ring matches the internal thread on the inner wall of the positioning groove on the inner side of the support frame, so that the shaping assembly can be firmly installed in the guiding assembly. This design not only ensures the stability of the shaping assembly during operation, but also allows it to be easily adjusted or replaced according to production needs, improving the adaptability and flexibility of the equipment. At the same time, this installation method also facilitates the maintenance and maintenance of the shaping assembly, prolonging the service life of the equipment.
[0017] Compared with the prior art, the utility model has the advantages that:
[0018] The utility model discloses a shaping assembly designed on the frame body, especially the limiting groove opened on the shaping frame, which can tightly wrap and constrain the diaphragm body, preventing its edge from being warped during the cooling process. The design of the limiting groove ensures that the diaphragm maintains a stable form during transmission, avoiding the edge from being warped due to uneven stress.
[0019] The liquid cooling device arranged below the shaping assembly can accurately control the temperature, helping the diaphragm to cool uniformly during the shaping process. This uniform cooling avoids deformation or edge warping caused by thermal stress, ensuring that the battery diaphragm has a stable form and consistent performance when leaving the shaping area.
[0020] The shaping assembly can be easily installed, fixed and adjusted through the design of the connecting frame and the limiting ring. This design allows the shaping assembly to be easily replaced or adjusted according to production needs, improving the versatility and flexibility of the equipment. At the same time, it is also convenient for the maintenance and maintenance of the shaping assembly, prolonging the service life of the equipment.
[0021] The arrangement of multiple guide rollers in the guiding assembly provides multi-point support and guidance for the diaphragm body. This design not only helps the diaphragm to be smoothly transmitted on the production line, but also further flattens the diaphragm surface through the rolling action of the rollers, reducing the risk of wrinkles and edge warping. At the same time, the diaphragm is subjected to balanced tension in multiple directions, further reducing the possibility of edge warping and wrinkling.
[0022] In summary, the utility model effectively solves the problems of edge warping and black edge formation in traditional forming processes through innovative shaping assembly and cooling mechanism design, improving the quality and performance of battery diaphragm, and providing a more reliable and efficient solution for battery diaphragm production. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a front view structural schematic diagram of the utility model;
[0024] Figure 2A frame body structure schematic view of the utility model is shown in the figure.
[0025] Figure 3 A guide assembly structure schematic view of the utility model is shown in the figure.
[0026] Figure 4 A shaping assembly structure schematic view of the utility model is shown in the figure.
[0027] In the figure: 1, frame body; 11, base frame; 111, partition plate; 12, guide assembly; 121, support frame; 1211, positioning groove; 122, first guide roller; 123, second guide roller; 124, third guide roller; 13, shaping assembly; 131, shaping frame; 1311, limiting groove; 132, connecting frame; 1321, limiting ring; 2, diaphragm body. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0029] Embodiment one
[0030] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the utility model provides an embodiment: an anti-edge-warping device for battery diaphragm production, including frame body 1, frame body 1 has diaphragm body 2 to pass through, frame body 1 includes base frame 11, guide assembly 12 and shaping assembly 13, guide assembly 12 is fixedly installed at the top of base frame 11, and shaping assembly 13 is movably installed in the inner side of guide assembly 12;Shaping assembly 13 includes shaping frame 131, and the outer side of shaping frame 131 is provided with limiting groove 1311, diaphragm body 2 passes through limiting groove 1311, and shaping frame 131 is designed with stainless steel material.
[0031] Specifically, through the shaping assembly 13 designed on the frame body 1, especially the limiting groove 1311 formed on the shaping frame 131, the diaphragm body 2 can be tightly wrapped and constrained, to prevent its edge from warping during the cooling process. The design of limiting groove 1311 ensures that the diaphragm maintains a stable form during transmission, avoiding the edge from warping due to uneven stress.
[0032] The liquid cooling device arranged below the plasticizing assembly 13 can accurately control the temperature and help the diaphragm to cool uniformly during the plasticizing process. This uniform cooling avoids deformation or edge lifting caused by thermal stress, ensuring that the battery diaphragm has a stable shape and consistent performance when leaving the plasticizing area.
[0033] The plasticizing assembly 13 can be conveniently installed, fixed and adjusted through the design of the connecting frame 132 and the limiting ring 1321. This design makes the plasticizing assembly 13 easy to replace or adjust according to production needs, improving the versatility and flexibility of the equipment. At the same time, it is also convenient to maintain and maintain the plasticizing assembly 13, prolonging the service life of the equipment.
[0034] The arrangement of multiple guide rollers in the guide assembly 12 provides multi-point support and guidance for the diaphragm body 2. This design not only helps the diaphragm to smoothly transmit on the production line, but also further flattens the diaphragm surface through the rolling action of the rollers, reducing the risk of wrinkles and edge lifting. At the same time, the diaphragm is subjected to balanced tension in multiple directions, further reducing the possibility of edge lifting and wrinkles.
[0035] In summary, the utility model effectively solves the problems of edge lifting and black edge formation in traditional forming process through the innovative design of plasticizing assembly 13 and cooling mechanism, improves the quality and performance of battery diaphragm, and provides a more reliable and efficient solution for the production of battery diaphragm.
[0036] Example two
[0037] In order to realize temperature adjustment of the plasticizing assembly, as shown in Figure 1 and Figure 2 In this embodiment, the partition plate 111 is fixedly installed on the inner side of the chassis 11, and the liquid cooling device matched with the plasticizing assembly 13 is fixedly installed on the inner side of the chassis 11 directly below the plasticizing assembly 13.
[0038] The partition plate 111 fixedly installed on the inner side of the chassis 11 and the liquid cooling device matched therewith in the design provide effective cooling below the plasticizing assembly 13. The liquid cooling device can accurately control the temperature and help the diaphragm body 2 to cool uniformly during the plasticizing process, avoiding deformation or edge lifting caused by thermal stress. This advantage ensures that the battery diaphragm has a stable shape when leaving the plasticizing area, improving the overall quality and consistency of the product.
[0039] Example three
[0040] In order to realize the quick disassembly and assembly of the plasticizing assembly, as shown in Figure 3 and Figure 4As shown, in this embodiment, the guide assembly 12 includes two support frames 121, each of which is rotatably mounted with a first guide roller 122 at the top of the opposite side, and rotatably mounted with a third guide roller 124 at the bottom of the opposite side. Between the two support frames 121 on the opposite side of the first guide roller 122 and the third guide roller 124, a second guide roller 123 is rotatably mounted.
[0041] The combination design of the support frame 121, the first guide roller 122, the second guide roller 123, and the third guide roller 124 in the design provides multi-point support and guidance for the diaphragm body 2. This design not only helps the diaphragm to be smoothly transmitted on the production line, but also further flattens the diaphragm surface through the rolling action of the rollers, reducing the risk of wrinkles and edge lifting.
[0042] Further, the inner side of each of the two support frames 121 is provided with a positioning groove 1211, and the inner wall of the positioning groove 1211 is provided with an internal thread.
[0043] The positioning groove 1211 provided in the inner side of the support frame 121 and the internal thread on the inner wall thereof in the design provide an accurate positioning and fixing method for the installation of the shaping assembly 13. By rotating the limiting ring 1321 and fixing it on the support frame 121, the installation is not only simple and fast, but also ensures the stability and reliability of the shaping assembly 13 during the working process. This design makes the shaping assembly 13 easy to replace or adjust according to production needs, improving the versatility and flexibility of the equipment.
[0044] Further, the middle section of the diaphragm body 2 passes above the first guide roller 122, and the two ends of the diaphragm body 2 pass from the opposite sides of the second guide roller 123 and the third guide roller 124, respectively.
[0045] The path design of the diaphragm body 2 in the guide assembly 12 in the design ensures that the diaphragm is uniformly supported and guided during transmission. The diaphragm passes from the opposite sides of the second guide roller 123 and the third guide roller 124, and then passes above the first guide roller 122. Such path setting helps the diaphragm to be subjected to balanced tension in multiple directions, further reducing the possibility of edge lifting and wrinkling. At the same time, this design also makes the diaphragm have been preliminarily flattened before entering the shaping assembly 13, improving the efficiency and effect of subsequent shaping.
[0046] Further, the two ends of the shaping frame 131 are respectively fixedly mounted with a connecting frame 132, and the connecting frame 132 movably sheathes a limiting ring 1321, and the outer wall of the limiting ring 1321 is provided with an external thread matched with the internal thread of the inner wall of the positioning groove 1211.
[0047] The design of the fixedly installed connecting frame 132 and the movably installed limiting ring 1321 at both ends of the shaping frame 131 provides a flexible and reliable way for the installation and fixation of the shaping assembly 13. The external thread on the outer wall of the limiting ring 1321 matches the internal thread on the inner wall of the positioning groove 1211 in the inner side of the support frame 121, so that the shaping assembly 13 can be firmly installed in the guiding assembly 12. This design not only ensures the stability of the shaping assembly 13 during operation, but also allows it to be easily adjusted or replaced according to production needs, improving the adaptability and flexibility of the equipment. At the same time, this installation method also facilitates the maintenance and maintenance of the shaping assembly 13, prolonging the service life of the equipment.
[0048] When the utility model is used, the frame body 1 is stably installed at a proper position of the battery separator production line. It is checked whether the base frame 11, the guiding assembly 12 and the shaping assembly 13 are firmly installed, especially whether the liquid cooling device is normally connected and in working condition. The shaping frame 131 that meets the current use of the separator body 2 is selected for installation, and the steps are to align the limiting ring 1321 on the connecting frame 132 with the positioning groove 1211 on the inner side of the support frame 121, and rotate the limiting ring 1321 to fix it on the support frame 121 by using the cooperation of the external thread and the internal thread. In this way, the shaping frame 131 is stably installed in the guiding assembly 12.
[0049] The battery separator production line is started, so that the separator body 2 is extruded and the one end of the separator body 2 is first passed from the opposite side of the second guiding roller 123 and the third guiding roller 124 on one side of the guiding assembly 12, and then passed from above the first guiding roller 122, and then passed from the opposite side of the second guiding roller 123 and the third guiding roller 124 on the other side of the guiding assembly 12, and then continuously wound by the winding device. When passing between the first guiding roller 122 and the second guiding roller 123, the separator body 2 simultaneously passes through the shaping frame, and is restrained by the limiting groove 1311 of the shaping frame 131, preventing the edge from being raised. The arrangement of these guiding rollers helps to further flatten the separator and guide it to the next process. During production, the state of the separator body 2, especially the edge condition after passing through the shaping assembly 13, is continuously monitored. If it is found that the edge is still slightly raised or irregular, the cooling intensity of the liquid cooling device can be adjusted, so that the temperature of the shaping frame 131 changes to achieve the best shaping effect.
[0050] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.
Claims
1. An anti-warping device for battery separator production, comprising a frame body (1) through which a separator body (2) passes, characterized in that: the frame body (1) comprises a base frame (11), a guide assembly (12) and a shaping assembly (13), the guide assembly (12) is fixedly installed on the top of the base frame (11), and the shaping assembly (13) is movably installed on the inner side of the guide assembly (12); the shaping assembly (13) comprises a shaping frame (131), a limiting groove (1311) is formed on the outer side of the shaping frame (131), the separator body (2) passes through the limiting groove (1311), and the shaping frame (131) is made of stainless steel.
2. The edge lifting prevention device for battery separator production according to claim 1, wherein A partition plate (111) is fixedly installed on the inner side of the base frame (11) below the shaping assembly (13), and a liquid cooling device matched with the shaping assembly (13) is fixedly installed on the partition plate (111).
3. The edge lifting prevention device for battery separator production according to claim 1, wherein The guide assembly (12) comprises a support frame (121), the number of the support frame (121) is two, a first guide roller (122) is rotatably installed on the top of the opposite side of the two support frames (121), a third guide roller (124) is rotatably installed on the front and rear ends of the bottom of the opposite side of the two support frames (121), and a second guide roller (123) is rotatably installed between the two support frames (121) on the opposite side of the first guide roller (122) and the third guide roller (124).
4. The edge lifting prevention device for battery separator production according to claim 3, wherein Positioning grooves (1211) are formed on the inner sides of the two support frames (121), and internal thread is formed on the inner wall of the positioning groove (1211).
5. The edge lifting prevention device for battery separator production of claim 1, wherein, The middle section of the separator body (2) passes above the first guide roller (122), and the two ends of the separator body (2) pass through the opposite sides of the second guide roller (123) and the third guide roller (124) respectively.
6. The edge lifting prevention device for battery separator production of claim 1, wherein, Connecting frames (132) are fixedly installed on the two ends of the shaping frame (131), limiting rings (1321) are movably sleeved on the connecting frames (132), and external thread is formed on the outer wall of the limiting ring (1321) and matched with the internal thread of the positioning groove (1211).