Electrode diaphragm winding device and production equipment thereof
The driving device makes the pressure roller abut the surface of the reel, which solves the problem of wrinkles during the collection of the electrode diaphragm and achieves a high-quality winding effect.
Patent Information
- Application Number
- CN202422813186.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In the prior art During the collection process of electrode diaphragm, the diaphragm is prone to wrinkle due to factors such as friction and uneven tension, which affects the appearance quality and battery performance. It is prone to wrinkle again after flattening without fixing the shape in time.
The drive device is used to drive the press roller on the rotary frame to move in the direction of the reel, so that the press roller abuts the surface of the reel, thereby achieving continuous flattening of the diaphragm and preventing wrinkles.
Effectively reduce the wrinkles of the diaphragm during the winding process, improve the winding quality and battery performance stability.
Smart Images
Figure CN223254508U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electrode membranes, and in particular to an electrode membrane winding device and production equipment thereof. Background Art
[0002] In the field of battery manufacturing, there are significant differences in the collection process of electrode diaphragms and pole pieces, which has a significant impact on production efficiency and product quality. Specifically, due to its material and structural characteristics, pole pieces can usually maintain a good degree of flatness during the collection process and are not prone to wrinkling. However, the electrode diaphragm faces greater challenges in the film collection process. Because the diaphragm needs to be threaded over long distances, its surface is very prone to wrinkling due to factors such as friction and uneven tension. This not only affects the appearance quality of the diaphragm, but may also further affect the performance and stability of the battery.
[0003] To address this issue, existing technologies have attempted to use a method of flattening the film before winding it up. However, practice has shown that while this method can reduce wrinkling to a certain extent, its effectiveness is limited. This is because if the film is not promptly and effectively fixed after flattening, it may wrinkle again during the subsequent winding process due to external forces. Utility Model Content
[0004] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and to provide an electrode membrane winding device and production equipment thereof.
[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:
[0006] This application provides:
[0007] An electrode membrane winding device, comprising:
[0008] Mounting rack;
[0009] a reel, the reel being rotatably mounted on the mounting frame;
[0010] A rotating frame, the rotating frame being rotatably mounted on the mounting frame;
[0011] a pressing roller, the pressing roller being rotatably mounted on the rotating frame;
[0012] A driving device is installed on the mounting frame and connected to the rotating frame, and is used for driving the pressure roller to move toward the reel.
[0013] Furthermore, a first rotating driving member is fixedly mounted on the mounting frame, the first rotating driving member is connected to the reel, and the first rotating driving member is used to drive the reel to rotate.
[0014] Furthermore, clamps are installed on both ends of the reel.
[0015] Furthermore, the rotating frame includes a rotating shaft rotatably mounted on the mounting frame, a swing arm is fixedly mounted on the rotating shaft, and the pressure roller is rotatably mounted on the end of the swing arm facing the reel.
[0016] Furthermore, at least one roller is rotatably mounted on the mounting frame.
[0017] Furthermore, the driving device is a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to the swing arm, and the end of the telescopic cylinder away from the swing arm is installed on the mounting frame.
[0018] Furthermore, the driving device is a rotary cylinder, the rotary cylinder is mounted on the mounting frame, and the rotating end of the rotary cylinder is connected to the rotating shaft.
[0019] Furthermore, a tensioning structure is installed on the mounting frame, and the tensioning structure includes a rotating arm rotatably installed on the mounting frame, a first tensioning roller is rotatably installed on one end of the rotating arm, a second tensioning roller is rotatably installed on the end of the rotating arm away from the first tensioning roller, and a third tensioning roller that drives the rotating arm to rotate is fixedly installed on the mounting frame.
[0020] Furthermore, at least one connecting rod is provided between the first tensioning roller and the second tensioning roller.
[0021] The present application provides an electrode membrane production device, comprising the electrode membrane winding device described in any one of the above items.
[0022] The present application drives the rotating frame to rotate by a driving device on the mounting frame, thereby moving the pressure roller toward the direction of the reel, so that the pressure roller is always in contact with the surface of the reel, thereby flattening the membrane to be wound on the reel to prevent wrinkles when the membrane is wound.
[0023] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0025] Figure 1A schematic diagram of the first perspective three-dimensional structure of the winding device of the present application is shown;
[0026] Figure 2 A schematic diagram of the third perspective structure of the winding device of the present application is shown;
[0027] Figure 3 A schematic diagram of the explosion state of the reel, rotating frame, pressure roller and driving device of the present application from a first perspective is shown;
[0028] Figure 4 A schematic side view of the reel, rotating frame, pressure roller and driving device of the present application is shown;
[0029] Figure 5 A schematic diagram of the explosion state of the reel, rotating frame, pressure roller and driving device of the present application from a second viewing angle is shown;
[0030] Figure 6 A schematic diagram of the tensioning structure of this application is shown.
[0031] Explanation of the main component symbols: 100-mounting frame; 200-reel; 300-rotating frame; 310-rotating shaft; 320-swing arm; 400-pressure roller; 500-driving device; 600-first rotating drive member; 700-passing roller; 800-chuck; 900-tensioning structure; 910-rotating arm; 920-first tensioning roller; 930-second tensioning roller; 940-second rotating drive member; 950-connecting rod. DETAILED DESCRIPTION
[0032] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.
[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like 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, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0035] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.
[0036] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0037] In the existing electrode diaphragm winding process, in order to prevent the diaphragm from wrinkling, the diaphragm is flattened and then rolled up to achieve film winding. Although the generation of wrinkles can be reduced to a certain extent, the effect is limited. After flattening, if the shape is not fixed in time and effectively, it is still possible for wrinkles to appear again due to external forces during the subsequent film winding process. For this reason, the present application drives the pressure roller 400 installed on the rotating frame 300 to move toward the reel 200 through the driving device 500, so that the reel 200 is always in contact with the outer surface of the reel 200, so that the diaphragm can be rolled up immediately after being flattened, thereby reducing the generation of wrinkles.
[0038] Specifically, this embodiment discloses an electrode membrane winding device, which includes a mounting frame 100 , a winding shaft 200 , a rotating frame 300 , a pressure roller 400 and a driving device 500 .
[0039] The reel 200 is rotatably mounted on the mounting frame 100, the rotating frame 300 is rotatably mounted on the mounting frame 100, the pressure roller 400 is rotatably mounted on the rotating frame 300, the driving device 500 is mounted on the mounting frame 100, and the driving device 500 is connected to the rotating frame 300. The driving device 500 is used to drive the pressure roller 400 to move toward the reel 200.
[0040] See Figure 1 、 Figure 3 、 Figure 4 As shown, the driving device 500 gives the rotating frame 300 a force to rotate toward the reel 200, driving the rotating frame 300 to rotate toward the reel 200, thereby making the pressure roller 400 always in contact with the outer surface of the reel 200, that is, after the pressure roller 400 flattens the membrane, the reel 200 can immediately wind the flattened membrane, thereby reducing the generation of membrane wrinkles and improving the membrane winding quality.
[0041] A first rotating driving member 600 is fixedly mounted on the mounting frame 100 . The first rotating driving member 600 is connected to the reel 200 . The first rotating driving member 600 is used to drive the reel 200 to rotate.
[0042] See Figure 1 As shown, in order to enable the diaphragm to be wound on the reel 200, the reel 200 is driven to rotate by the first rotating drive member 600, and the diaphragm is wound on the reel 200 during the rotation of the reel 200. Specifically, under the action of the driving device 500, the pressure roller 400 is always in contact with the surface of the reel 200. For this reason, when the reel 200 rotates, the pressure roller 400 is also driven to rotate, and the rotation directions of the reel 200 and the pressure roller 400 are opposite.
[0043] Exemplarily, the first rotating drive member 600 can be a motor, which drives the reel 200 to rotate. Furthermore, a belt drive is used between the first rotating drive member 600 and the reel 200, that is, a pulley is installed on the rotating shaft of the first rotating drive member 600, and a pulley is also installed at the end of the reel 200, and the two pulleys are connected by a belt. Furthermore, in order to improve the rotation accuracy of the reel 200, the first rotating drive member 600 can be selected as a servo motor, and the two pulleys can be selected as synchronous pulleys. Accordingly, the belt can be replaced with a synchronous belt, and the two synchronous pulleys are connected through a belt conveyor to transmit the power from the first rotating drive member 600 to the reel 200, thereby driving the reel 200 to rotate.
[0044] Exemplarily, the first rotating drive member 600 is a motor, and the transmission between the first rotating drive member 600 and the reel 200 can also adopt chain transmission, gear meshing transmission, etc. For example: sprockets are installed at the end of the reel 200 and the rotating shaft of the first rotating drive member 600, and the two sprockets are connected by a chain to realize transmission. Alternatively, gears are installed at the end of the reel 200 and the rotating end of the first rotating drive member 600, and the two gears are meshed, thereby transmitting the power of the first rotating drive member 600 to the reel 200 through gear meshing transmission, so that the reel 200 can rotate.
[0045] Chucks 800 are mounted on both ends of the reel 200 .
[0046] In this embodiment, the reel 200 is an air-expanding shaft, and the clamps 800 at both ends are air-expanding shaft clamps, which serve to fix the air-expanding shaft. Specifically, a reel can be placed on the air-expanding shaft during winding, that is, the final film is wound on the outer surface of the reel.
[0047] The rotating frame 300 includes a rotating shaft 310 rotatably mounted on the mounting frame 100 , a swing arm 320 is fixedly mounted on the rotating shaft 310 , and the pressure roller 400 is rotatably mounted on the end of the swing arm 320 facing the reel 200 .
[0048] See Figure 1 As shown, in this embodiment, the mounting frame 100 is assembled by two side panels, and the two side panels can be mounted on a bottom plate (not shown in the figure), and the two side panels can also be connected by a connecting rod (not shown in the figure). In practice, the mounting method can be selected according to needs, and is not limited here. The two side panels are in a vertical state. Furthermore, the pressure roller 400 is mounted on the swing arm 320. In order to enable the pressure roller 400 to move toward the reel 200, a rotating shaft 310 is rotatably installed between the two side panels, and then the swing arm 320 is fixedly installed on the outer surface of the rotating shaft 310, that is, the swing arm 320 can rotate with the rotating shaft 310 as the center, so that the pressure roller 400 moves following the swing of the swing arm 320.
[0049] Please continue reading Figure 1 As shown, in this embodiment, there are two swing arms 320, and the two swing arms 320 are arranged in parallel. The two swing arms 320 are fixedly mounted on the rotating shaft 310. Furthermore, the swing arms 320 are rotationally connected to the two rotating shafts 310, and the pressure roller 400 is located between the two swing arms 320.
[0050] At least one roller 700 is rotatably mounted on the mounting frame 100 .
[0051] See Figure 3 、 Figure 4 as well as Figure 5As shown, in order to enable the diaphragm to be smoothly wound on the outer surface of the pressure roller 400, at least one roller 700 is installed on the mounting frame 100. The roller 700 guides the diaphragm, thereby changing the direction of the diaphragm.
[0052] The driving device 500 is a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to the swing arm 320 , and the end of the telescopic cylinder away from the swing arm 320 is installed on the mounting frame 100 .
[0053] See Figure 2 、 Figure 3 、 Figure 4 As shown, in order to keep the pressure roller 400 in contact with the outer surface of the reel 200, in this embodiment, the driving device 500 is a telescopic cylinder, which is on the same side as the reel 200. Figure 4 As shown, the telescopic cylinder is located on the left side of the swing arm 320. The telescopic cylinder pulls the swing arm 320 to swing toward the reel 200. The telescopic cylinder drives the swing arm 320 to swing toward the reel 200 with the rotating shaft 310 as the center, thereby driving the pressure roller 400 to contact the outer surface of the reel 200.
[0054] It should be noted here that as the reel 200 winds the diaphragm, the thickness of the diaphragm on the outer surface of the reel 200 will increase, causing the pressure roller 400 to move away from the reel 200. At this time, the telescopic cylinder is forced to extend and increase the stroke. In other words, the telescopic cylinder is not actively extended, but the thickness of the diaphragm on the reel 200 continues to increase, and the force that gradually drives the pressure roller 400 away drives the telescopic cylinder to extend. At this time, the telescopic cylinder will continue to give force to the swing arm 320 to move toward the reel 200.
[0055] For example, Figure 4 For explanation, the telescopic cylinder is not on the same side as the reel 200, that is, the telescopic cylinder is located on the right side of the swing arm 320, which is equivalent to the telescopic cylinder pushing the swing arm 320 to swing toward the reel 200. When the thickness of the diaphragm on the outer surface of the reel 200 gradually increases, it will drive the pressure roller 400 to move away from the reel 200, thereby causing the telescopic cylinder on the right side to be compressed and contracted; in practice, whether the telescopic cylinder is on the same side as the reel 200 can be selected according to needs, and there is no specific limitation here.
[0056] For example, the driving device 500 may also be a tension spring, and the tension of the tension spring is used to drive the pressure roller 400 to always contact the outer surface of the reel 200.
[0057] Exemplarily, the driving device 500 is a rotary cylinder, which is mounted on the mounting frame 100 , and the rotating end of the rotary cylinder is connected to the rotating shaft 310 .
[0058] The rotating cylinder serves as a power source to keep the swing arm 320 in contact with the outer surface of the reel 200. When the thickness of the diaphragm on the outer surface of the reel 200 gradually increases, the gas inside the rotating cylinder will be compressed, which in turn will give force to the pressure roller 400 to keep in contact with the outer surface of the reel 200.
[0059] Exemplarily, the driving device 500 can also be composed of a cylinder and a gear rack structure. Specifically, a gear is installed at the end of the rotating shaft 310, the cylinder is fixedly installed on the mounting frame 100, and a rack is installed at the telescopic end of the cylinder. The rack is engaged with the gear, and a moving force is given to the rack through the cylinder. The force is transmitted to the rotating shaft 310 through the engagement of the gear and the rack, and then the pressure roller 400 installed on the swing arm 320 can be driven to move toward the reel 200, so that the pressure roller 400 contacts the outer surface of the reel 200.
[0060] A tensioning structure 900 is installed on the mounting frame 100, and the tensioning structure 900 includes a rotating arm 910 rotatably mounted on the mounting frame 100, a first tensioning roller 920 is rotatably mounted on one end of the rotating arm 910, and a second tensioning roller 930 is rotatably mounted on the end of the rotating arm 910 away from the first tensioning roller 920, and a second rotating drive member 940 that drives the rotating arm 910 to rotate is fixedly mounted on the mounting frame 100.
[0061] At least one connecting rod 950 is respectively provided between the first tensioning roller 920 and the second tensioning roller 930 .
[0062] See Figure 2 、 Figure 6 As shown, in order to make the diaphragm fit more closely to the outer surface of the pressure roller 400 and prevent the diaphragm from wrinkling during transportation, the diaphragm is passed around the first tensioning roller 920 and the second tensioning roller 930 in sequence, and the second rotating drive member 940 drives the rotating arm 910 to rotate and swing, thereby achieving tensioning or relaxation of the diaphragm wound around the surfaces of the first tensioning roller 920 and the second tensioning roller 930 to meet the winding needs. In this embodiment, the second rotating drive member 940 is a motor. In order to accurately control the swing angle, the second rotating drive member 940 uses a servo motor.
[0063] In this embodiment, there are two rotating arms 910, and the two rotating arms 910 are connected by a connecting rod 950. Furthermore, there are two connecting rods 950, and the connecting rods 950 are located between the first tensioning roller 920 and the second tensioning roller 930. Specifically, the two rotating arms 910 and the two connecting rods 950 form a frame for rotating and swinging, and the first tensioning roller 920 and the second tensioning roller 930 swing along with the swing of the frame.
[0064] This embodiment also provides an electrode membrane production device, including any of the electrode membrane winding devices described above.
[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. An electrode membrane winding device, characterized in that: include: Mounting frame (100); a reel (200), the reel (200) being rotatably mounted on the mounting frame (100); A rotating frame (300), the rotating frame (300) being rotatably mounted on the mounting frame (100); a pressing roller (400), the pressing roller (400) being rotatably mounted on the rotating frame (300); A driving device (500) is installed on the mounting frame (100), and the driving device (500) is connected to the rotating frame (300). The driving device (500) is used to drive the pressure roller (400) to move toward the reel (200).
2. The electrode membrane winding device according to claim 1, characterized in that: A first rotating driving member (600) is fixedly mounted on the mounting frame (100), the first rotating driving member (600) is connected to the reel (200), and the first rotating driving member (600) is used to drive the reel (200) to rotate.
3. The electrode membrane winding device according to claim 1, characterized in that: The two ends of the reel (200) are equipped with clamps (800).
4. The electrode membrane winding device according to claim 1, characterized in that: The rotating frame (300) comprises a rotating shaft (310) rotatably mounted on the mounting frame (100), a swing arm (320) being fixedly mounted on the rotating shaft (310), and the pressing roller (400) is rotatably mounted on the end of the swing arm (320) facing the reel (200).
5. The electrode membrane winding device according to claim 1, characterized in that: At least one roller (700) is rotatably mounted on the mounting frame (100).
6. The electrode membrane winding device according to claim 4, characterized in that: The driving device (500) is a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to the swing arm (320), and the end of the telescopic cylinder away from the swing arm (320) is mounted on the mounting frame (100).
7. The electrode membrane winding device according to claim 4, characterized in that: The driving device (500) is a rotary cylinder, which is mounted on the mounting frame (100), and the rotating end of the rotary cylinder is connected to the rotating shaft (310).
8. The electrode membrane winding device according to claim 1, characterized in that: A tensioning structure (900) is installed on the mounting frame (100), and the tensioning structure (900) includes a rotating arm (910) rotatably mounted on the mounting frame (100), a first tensioning roller (920) is rotatably mounted on one end of the rotating arm (910), and a second tensioning roller (930) is rotatably mounted on the end of the rotating arm (910) away from the first tensioning roller (920), and a second rotating driving member (940) for driving the rotating arm (910) to rotate is fixedly mounted on the mounting frame (100).
9. The electrode membrane winding device according to claim 8, characterized in that: At least one connecting rod (950) is provided between the first tensioning roller (920) and the second tensioning roller (930).
10. An electrode membrane production device, characterized in that: An electrode membrane winding device comprising the electrode membrane winding device according to any one of claims 1 to 9.