Winding device

Abstract

The utility model relates to the technical field of new energy batteries, in particular to a winding device which comprises a winding roll shaft, a brake disc and a brake, in the winding device, the winding roll shaft is used for winding materials, the brake disc is fixedly installed on the winding roll shaft and is in linkage with the winding roll shaft, the brake and the brake disc are installed in a matched mode, and the winding roll shaft is driven by the brake disc to rotate. The brake is used for braking the brake disc. Through the matching effect of the brake and the brake disc, the problem that a traditional magnetic powder clutch cannot stop a winding device in time, so that a pole piece slides on the ground and is scrapped is solved.

Description

Technical Field

[0001] This application relates to the technical field of new energy batteries, and particularly to a winding device. Background Art

[0002] With the rapid development of the lithium battery industry, the compaction density of the electrode sheets during the production process of batteries is getting larger and larger. During the high-speed production process of the electrode sheets, the equipment system has a large tension. When a belt break occurs in the equipment, resulting in the loss of tension, the winding device in the equipment cannot stop immediately due to the large inertia of the electrode sheet, causing the electrode sheet to slide onto the ground instantly, and then leading to the scrapping of the electrode sheet.

[0003] In the existing production equipment, when a belt break occurs, generally a magnetic powder clutch is used to stop the winding device. However, due to the increasing mass of the electrode sheet, the traditional magnetic powder clutch cannot stop the winding device in time, resulting in the electrode sheet sliding onto the ground and being scrapped. Utility Model Content

[0004] This application provides a winding device, aiming to solve the problem that the traditional magnetic powder clutch cannot stop the winding device in time, resulting in the electrode sheet sliding onto the ground and being scrapped.

[0005] To solve the above technical problems, this application proposes a winding device, which includes:

[0006] A winding roller shaft for winding the material;

[0007] A brake disc fixedly installed on the winding roller shaft, and the brake disc is linked with the winding roller shaft;

[0008] A brake, which is cooperatively installed with the brake disc, and the brake is used to clamp the brake disc to stop the brake disc from rotating.

[0009] Furthermore, the winding device further includes a tension detector, which is arranged relative to the material, and the tension detector is used to detect the surface tension of the material.

[0010] Furthermore, the winding device further includes a swing roller shaft and a first driving device. The swing roller shaft is in contact with the material, and the first driving device is used to drive the swing direction of the swing roller shaft to form a certain angle with the surface of the material.

[0011] Furthermore, the winding device further includes a plurality of conveying roller shafts, which are arranged in parallel at intervals with the winding roller shaft, and the conveying roller shafts rotate synchronously with the winding roller shaft. The material bypasses the plurality of conveying roller shafts and is wound on the winding roller shaft.

[0012] Further, the winding device further includes a pressure roller and a second driving device, and the second driving device is configured to drive the pressure roller to move towards the conveying roller shaft to clamp the material.

[0013] Further, the winding device further includes an air shaft and a reel. The air shaft is sleeved on the winding roller shaft, and the reel is sleeved on the air shaft.

[0014] Further, the first driving device includes two first power sources, and the two first power sources are symmetrically arranged on both sides of the swing roller shaft.

[0015] Further, the first driving device further includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are rotatably connected. One end of the first connecting rod away from the second connecting rod is connected to the first power source, and one end of the second connecting rod away from the first connecting rod is connected to the swing roller shaft.

[0016] Further, the second driving device includes a second power source and a fixed seat. The fixed seat is fixedly connected to the output end of the second power source, and the pressure roller is rotatably installed on the fixed seat.

[0017] Further, multiple sets of the pressure roller and the second driving device are provided.

[0018] The beneficial effects of the present application are as follows: The winding device includes a winding roller shaft, a brake disc, and a brake. In the winding device provided by the present application, the winding roller shaft is used to wind the material. The brake disc is fixedly installed on the winding roller shaft, and the brake disc is linked with the winding roller shaft. The brake is cooperatively installed with the brake disc, and the brake is used to brake the brake disc. Through the cooperative action of the brake and the brake disc, rapid braking of the winding roller shaft can be achieved, effectively preventing the wound material from slipping to the ground due to inertia. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0020] Figure 1 is a three-dimensional structural schematic diagram of a winding device according to an embodiment of the present invention;

[0021] Figure 2 is a three-dimensional structural schematic diagram of another perspective of a winding device according to an embodiment of the present invention.

[0022] Description of reference numerals: 100, winding roller shaft; 110, air shaft; 120, material; 200, brake disc; 300, brake; 400, tension detector; 500, swing roller shaft; 510, first power source; 520, first connecting rod; 530, second connecting rod; 600, conveying roller shaft; 700, pressing wheel; 710, second power source; 720, fixed seat. Detailed implementation manners

[0023] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] Those skilled in the art of the present technology can understand that unless specifically stated, the singular forms "a", "an", "the above" and "the" used herein may also include the plural forms. It should be further understood that the term "including" used in the specification of the present application means the presence of features, integers, steps, operations, elements, modules, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, modules, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any one of the one or more related listed items and all combinations.

[0025] Those skilled in the art of the present technology can understand that unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those of ordinary skill in the field to which the present application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as here.

[0026] As Figure 1 and Figure 2 shown, the present application provides a winding device, which includes a winding roller shaft 100, a brake disc 200, and a brake 300. The winding roller shaft 100 is used to wind the material 120. The brake disc 200 is fixedly installed on the winding roller shaft 100, and the brake disc 200 is linked with the winding roller shaft 100; the brake 300 is cooperatively installed with the brake disc 200, and the brake 300 is used to brake the brake disc 200.

[0027] In a specific embodiment, the winding roller shaft 100 is the core winding component of the winding device. It is usually made of high-strength metal materials and has sufficient strength and stiffness to bear the weight of the material 120 and the tensile force during the winding process. The winding roller shaft 100 is cylindrical and horizontally arranged. The material 120 to be wound is sleeved on the winding roller shaft 100. In this embodiment, the material is a pole piece. The brake disc 200 is a component closely connected to the winding roller shaft 100. The brake disc 200 is disc-shaped and fixedly installed at the end of the winding roller shaft 100. The brake 300 is a pneumatic brake, and its function is to quickly and stably stop the rotation of the brake disc 200 when needed. When it is necessary to stop the rotation of the winding roller shaft 100, the brake 300 realizes braking by applying frictional force to the brake disc 200. In another specific embodiment, the brake 300 can also adopt an electromagnetic brake, a hydraulic brake, etc. In practical applications, when the material 120 is wound on the winding roller shaft 100, the winding roller shaft 100 rotates continuously, driving the brake disc 200 to rotate together. When the material 120 breaks, the brake 300 is activated and stops its continued rotation by clamping the brake disc 200, so that the winding roller shaft 100 also stops rotating in time.

[0028] The above structural design can achieve precise braking control of the winding roller shaft 100, ensuring that the winding roller shaft 100 can stop at any time during the winding process. At the same time, this braking method directly acting on the winding roller shaft 100 has a significant braking effect, can quickly respond to the stop command, reduce the downtime of the equipment, and improve production efficiency.

[0029] As Figure 1 shown, the winding device further includes a tension detector 400. The tension detector 400 is arranged relative to the material 120, and the tension detector 400 is used to detect the surface tension of the material 120.

[0030] In a specific embodiment, the tension detector 400 is a device that can accurately measure the surface tension of the material 120. In the winding device, the tension detector 400 is set at a position corresponding to the material 120 so as to be able to directly contact or closely detect the tension change of the material 120. During the winding process, the tension of the material 120 will change continuously, and the tension detector 400 can monitor these changes in real time. The winding device further includes a controller, which is connected to the tension detector 400 and the brake 300. The controller is used to process the data of the tension detector 400 and control the working state of the brake 300 according to the result of data processing.

[0031] In summary, by setting the tension detector 400, the tension state of the winding material 120 can be monitored in real time, providing accurate tension data for the operator and facilitating the monitoring and adjustment of the production process.

[0032] As Figure 1 shown, the rewinding device further includes a swing roller shaft 500 and a first driving device. The swing roller shaft 500 is in contact with the material 120, and the first driving device is used to drive the swing roller shaft 500 to swing.

[0033] In a specific embodiment, the swing roller shaft 500 is a cylindrical roller shaft. The swing roller shaft 500 is horizontally arranged and in contact with the material 120. The first driving device is connected to the swing roller shaft 500, and the first driving device is the power source for driving the swing roller shaft 500 to swing. During the actual working process, the swing roller shaft 500 is in close contact with the material 120. When the tension value on the surface of the material 120 detected by the tension detector 400 is less than the preset value, the controller controls the first driving device to drive the swing roller shaft 500 to swing. The swinging direction of the swing roller shaft 500 forms a certain angle with the surface of the material. When the moving direction of the swing roller shaft 500 forms a certain angle with the surface of the material 120, the swing roller shaft 500 will apply a force to the material 120, causing the surface tension of the material 120 to change. The tension detector 400 further detects whether there is a change in the surface tension of the material 120. If, with the swing of the swing roller shaft 500, the tension detector 400 detects that the surface tension of the material 120 has not changed, the controller determines that the material 120 has a broken belt. At this time, the controller further controls the brake 300 to start to prevent the brake disc 200 from continuing to rotate.

[0034] As Figure 1 shown, the rewinding device further includes a plurality of conveying roller shafts 600, and the material 120 is conveyed to the winding roller shaft 100 through the conveying roller shafts 600.

[0035] In a specific embodiment, the conveying roller shafts 600 are key components for conveying the material 120. The conveying roller shafts 600 are cylindrical. There are a plurality of conveying roller shafts 600, and the plurality of conveying roller shafts 600 are arranged in parallel at intervals with the winding roller shaft 100. The plurality of conveying roller shafts 600 can be arranged according to the actual situation. The material 120 bypasses the plurality of conveying roller shafts 600 in a preset manner, and one end of the material 120 is fixed to the winding roller shaft 100. The conveying roller shafts 600 and the winding roller shaft 100 rotate synchronously. The conveying roller shafts 600 transport the material towards the winding roller shaft by rotation, and the conveying roller shafts wind the pole pieces by rotation. During the conveying process, the rotation speed and rotation direction of the conveying roller shafts 600 can be adjusted according to the characteristics of the material 120 and the winding requirements. For example, for some materials 120 with a relatively large weight, the number and diameter of the conveying roller shafts 600 can be appropriately increased to improve the load-bearing capacity and the stability of conveying.

[0036] In summary, setting a plurality of conveying roller shafts 600 can support and guide the material 120, ensuring that the material 120 can be accurately conveyed onto the winding roller shaft 100 and avoiding problems such as deviation and jamming. In addition, by reasonably arranging the positions and angles of the conveying roller shafts 600, the conveying requirements of materials 120 with different shapes and sizes can be adapted, improving the versatility of the equipment.

[0037] As Figure 1 shown, the winding device further includes a pressing wheel 700 and a second driving device, and the second driving device is used to drive the pressing wheel 700 to move towards the conveying roller shaft 600 to clamp the material 120.

[0038] In a specific embodiment, the pressing wheel 700 is a component for clamping the material 120 on the conveying roller shaft 600. The pressing wheel 700 is made of an elastic material such as rubber or polyurethane to increase the friction force with the material 120. The pressing wheel 700 is cylindrical and is arranged parallel and at intervals with the conveying roller shaft 600. The second driving device is connected to the pressing wheel 700, and the second driving device can provide sufficient power to drive the pressing wheel 700 to move towards the conveying roller shaft 600. When the swing roller shaft 500 detects a broken belt of the material 120 through swinging, the brake 300 stops the rotation of the winding roller shaft 100 by clamping the brake disc 200. At the same time, the second driving device drives the pressing wheel 700 to move towards the conveying roller shaft 600 so that the pressing wheel 700 and the conveying roller shaft 600 clamp the material 120 to buffer the material 120. This effectively prevents the material 120 with a large mass from slipping to the ground due to inertia.

[0039] As Figure 1 shown, the winding device further includes an air shaft 110 and a winding drum. The air shaft 110 is sleeved on the winding roller shaft 100, and the winding drum is sleeved on the air shaft 110.

[0040] In a specific embodiment, the air shaft 110 is a special shaft body that can achieve expansion and contraction of the shaft diameter by inflating or deflating. The air shaft 110 is sleeved on the winding roller shaft 100, and the winding drum is sleeved on the air shaft 110. During the actual working process, by inflating the inside of the air shaft 110, its shaft diameter increases, so as to closely cooperate with the winding drum to realize the fixed installation of the winding drum. The winding drum is a cylindrical component for winding the material 120. When the winding drum needs to be replaced, only the gas in the air shaft 110 needs to be released to reduce its shaft diameter, and then the winding drum can be easily removed.

[0041] In summary, the combined design of the air shaft 110 and the reel makes the installation and disassembly of the reel more convenient and fast, greatly improving the production efficiency. During the winding process, the air shaft 110 can provide stable supporting force to ensure synchronous rotation between the reel and the winding roller shaft 100, avoiding the problem of slipping. At the same time, the adjustability of the air shaft 110 can adapt to the installation requirements of reels with different inner diameters, improving the versatility of the equipment.

[0042] As Figure 1 shown, the first driving device includes two first power sources 510, and the two first power sources 510 are symmetric about the axis of symmetry of the swing roller shaft 500.

[0043] In a specific embodiment, the first power source 510 is an electric cylinder. An electric cylinder is a device that converts the rotational motion of an electric motor into linear motion, and it has precise position control and speed control capabilities. In this application, the two electric cylinders are respectively located on both sides of the swing roller shaft 500 and are symmetrically arranged about the axis of symmetry of the swing roller shaft 500. Such a design can provide more stable and uniform power when the electric cylinders drive the swing roller shaft 500 to swing.

[0044] In summary, using two symmetrically arranged electric cylinders as power sources can effectively improve the motion stability and accuracy of the swing roller shaft 500. In practical applications, this design can enable the swing roller shaft 500 to respond more quickly and accurately to changes in the tension of the material 120, thereby better realizing the detection of the tension of the material 120. At the same time, the symmetrically arranged electric cylinders can also reduce equipment wear and failures caused by uneven unilateral force, extending the service life of the equipment.

[0045] As Figure 1 shown, the first driving device further includes a first connecting rod 520 and a second connecting rod 530. The first connecting rod 520 and the second connecting rod 530 are rotatably connected. One end of the first connecting rod 520 away from the second connecting rod 530 is connected to the first power source 510, and one end of the second connecting rod 530 away from the first connecting rod 520 is connected to the swing roller shaft 500.

[0046] In a specific embodiment, the first connecting rod 520 and the second connecting rod 530 are intermediate components for connecting the first power source 510 and the swing roller shaft 500. One end of the first connecting rod 520 is rotatably connected to the output end of the electric cylinder, and the other end is rotatably connected to the second connecting rod 530 through a pin. One end of the second connecting rod 530 is rotatably connected to the first connecting rod 520, and the other end is rotatably connected to the end of the swing roller shaft 500. Driven by the first power source 510, the first connecting rod 520 and the second connecting rod 530 convert the linear motion of the first power source 510 into the swinging motion of the swing roller shaft 500 through the cooperation of rotating joints.

[0047] In summary, through the connection structure of the first connecting rod 520 and the second connecting rod 530, the linear motion of the first power source 510 can be converted into the swinging motion required by the swinging roller shaft 500, achieving efficient power transmission and conversion of the motion form. This design can make the installation position of the first power source 510 more flexible and not restricted by the installation space of the swinging roller shaft 500.

[0048] As Figure 1 shown, the second driving device includes a second power source 710 and a fixed seat 720. The fixed seat 720 is fixedly connected to the output end of the second power source 710, and the pressing wheel 700 is rotatably connected to the fixed seat 720.

[0049] In a specific embodiment, a cylinder is a device that uses compressed air to generate power. It has the characteristics of simple structure, rapid action, high reliability, etc. In this application, the cylinder serves as the second power source 710, and through the pushing action of compressed air, the linear motion of the fixed seat 720 is realized. The fixed seat 720 is a component for installing and fixing the pressing wheel 700. It is fixedly connected to the output end of the cylinder. The fixed seat 720 is U-shaped, and the pressing wheel 700 is rotatably assembled in the fixed seat 720. During operation, the cylinder pushes the fixed seat 720 towards the conveying roller shaft 600, causing the pressing wheel 700 to contact the material 120 and generate a certain pressure, clamping the material 120 on the conveying roller shaft 600.

[0050] In summary, using the cylinder as the second power source 710 has the advantages of fast response speed and stable clamping force. In the case of a broken belt of the material 120, it can quickly clamp the material 120 to prevent the material 120 after the broken belt from sliding to the ground. At the same time, the rotational connection method between the pressing wheel 700 and the fixed seat 720 can reduce the friction between the pressing wheel 700 and the material 120 and avoid damaging the surface of the material 120. In another specific embodiment, the fixed seat 720 and the pressing wheel 700 can be replaced by a fixed block, that is, the fixed block is directly driven by the second power source 710 to move towards the conveying roller shaft 600 to clamp the material 120.

[0051] In a specific embodiment, at different positions of the conveying roller shaft 600 or for different material 120 areas, a plurality of pressing wheels 700 and their corresponding second driving devices are arranged to facilitate clamping the material 120 at multiple places when the belt breaks, improving the buffering effect on the material 120 when the belt breaks.

[0052] The above are only the preferred embodiments of this application, and do not limit the patent scope of this application accordingly. Any equivalent structure or equivalent process transformation made using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of this application.

Claims

1. A rewinding device, characterized in that, Including: A winding roller shaft for winding materials; A brake disc fixedly installed on the winding roller shaft, and the brake disc is linked with the winding roller shaft; A brake, which is cooperatively installed with the brake disc, and the brake is used to clamp the brake disc so that the brake disc stops rotating.

2. The coiling device according to claim 1, wherein, The winding device further includes a tension detector, which is arranged relative to the material, and the tension detector is used to detect the surface tension of the material.

3. The coiling device according to claim 1, characterized in that, The winding device further includes a swing roller shaft and a first driving device. The swing roller shaft is in contact with the material, and the first driving device is used to drive the swing direction of the swing roller shaft to form a certain angle with the surface of the material.

4. The coiling device according to claim 1, characterized in that, The winding device further includes a plurality of conveying roller shafts, which are arranged in parallel at intervals with the winding roller shaft, and the conveying roller shafts rotate synchronously with the winding roller shaft, and the material bypasses the plurality of conveying roller shafts and is wound on the winding roller shaft.

5. The rewinding device according to claim 4, characterized in that, The winding device further includes a pressing wheel and a second driving device, and the second driving device is used to drive the pressing wheel to move towards the conveying roller shaft to clamp the material.

6. The coiling device according to claim 1, wherein, The winding device further includes an air shaft and a reel. The air shaft is sleeved on the winding roller shaft, and the reel is sleeved on the air shaft.

7. The coiling device according to claim 3, characterized in that, The first driving device includes two first power sources, and the two first power sources are symmetrically arranged on both sides of the swing roller shaft.

8. The coiling device according to claim 7, wherein The first driving device further includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are rotatably connected. One end of the first connecting rod away from the second connecting rod is connected to the first power source, and one end of the second connecting rod away from the first connecting rod is connected to the swing roller shaft.

9. The coiling device according to claim 5, characterized in that, The second driving device includes a second power source and a fixed seat. The fixed seat is fixedly connected to the output end of the second power source, and the pressing wheel is rotatably installed on the fixed seat.

10. The rewinding device according to claim 9, characterized in that, There are multiple groups of the pressing wheel and the second driving device.

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