Quick-change adjustable device of calendering wheel and tab calendering device

Abstract

The utility model discloses a quick-change adjustable device of a calendering wheel and a tab calendering device, and belongs to the technical field of lithium battery preparation, the quick-change adjustable device of the calendering wheel comprises a clamp device and a jacking device; the jacking device is arranged below the calendaring wheel, and the telescopic end of the jacking device is connected with the calendaring wheel and used for adjusting the distance between the calendaring wheel and the working roller; two clamp arms of the clamp device are respectively positioned on two sides of the rolling wheel bearing; when the calendaring wheel does not need to be replaced, the two clamp arms clamp the bearing of the calendaring wheel, when the calendaring wheel needs to be replaced, the two clamp arms clamp and loosen the bearing of the calendaring wheel, the calendaring wheel can be rapidly replaced by adjusting the clamp state of the clamp device, and therefore the position and the size of the calendaring wheel can be flexibly adjusted, and the calendaring wheel clamping device can be suitable for pole pieces of various specifications. And the applicability and the flexibility of the calendering device are greatly improved.

Description

Technical Field

[0001] The utility model relates to a quick-change adjustable device for a calendering wheel and a tab calendering device, belonging to the technical field of lithium battery preparation. Background Art

[0002] As a high-energy-density, lightweight and environmentally friendly energy storage device, lithium batteries are widely used in electric vehicles, mobile devices and energy storage systems. The core components of lithium batteries are positive and negative electrode sheets, which are prepared by a rolling process. The rolling process is the process of processing metal foil or composite sheet materials into the required thickness and shape by applying pressure between a pair of rollers. The rolling process uses rollers to roll the coating area. During the rolling process, the coating area is stretched due to deformation, and the empty foil in the tab area is not stretched, resulting in the phenomenon of inconsistent deformation between the coating area and the tab area, which is prone to ripples, wrinkles and broken belts.

[0003] In order to improve the wavy lines, wrinkles and broken strips that may occur in the tabs during the existing preparation process, some devices have added small calendering wheels to the blank areas of the pole pieces to calender the tab area to solve the wrinkle and broken strip problems in the tab area. However, traditional devices usually have limitations in this process, because the position or size of the calendering wheels cannot be flexibly adjusted, and they can only be applied to pole pieces of specific sizes or shapes. Summary of the invention

[0004] The utility model provides a quick-change adjustable device for a calendering wheel and a tab calendering device. By designing a clamp device with different clamping forces for the calendering wheel to clamp or loosen the calendering wheel, the calendering wheel can be quickly changed, and the working position of the calendering wheel can be adjusted in combination with a jacking device, thereby realizing flexible adjustment of the size and position of the calendering wheel, and being applicable to pole pieces of various specifications, greatly improving the applicability and flexibility of the calendering device.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by adopting the following technical solutions.

[0006] In a first aspect, the utility model provides a quick-change adjustable device for a calender wheel, comprising a clamping device and a jacking device;

[0007] The lifting device is arranged below the calendering wheel, and the telescopic end of the lifting device bears the calendering wheel to adjust the distance between the calendering wheel and the working roll;

[0008] The two clamp arms of the clamp device are respectively located on both sides of the calendering wheel bearing; when the calendering wheel does not need to be replaced, the two clamp arms clamp the calendering wheel bearing, and when the calendering wheel needs to be replaced, the two clamp arms release the calendering wheel bearing.

[0009] Optionally, one clamping arm of the clamping device is a fixed clamping arm, and the other clamping arm is a movable clamping arm, and the bearing of the calendering wheel is clamped or loosened by the movement of the movable clamping arm.

[0010] Optionally, the fixed clamp arm is a support plate fixed on one side of the calendering wheel, and the movable clamp arm is a support roller rotatably arranged on the other side of the calendering wheel. The outer wall of the support roller is provided with at least a first support surface and a second support surface. When the first support surface is opposite to the support plate, the bearing of the calendering wheel is clamped, and when the second support surface is opposite to the support plate, the bearing of the calendering wheel is released.

[0011] Optionally, the first supporting surface is a plane, and the second supporting surface is a curved surface.

[0012] Optionally, a displacement device is further included, and the lifting device is arranged on the displacement device, and the displacement device drives the lifting device to displace along the bearing direction of the calendering wheel.

[0013] In a second aspect, the utility model provides a tab calendering device, comprising a quick-change adjustable calendering wheel device as described in any step of the first aspect.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the device clamps or releases the calendering wheel by setting a clamping device with different clamping forces, and adjusts the working position of the calendering wheel according to the calendering requirements of pole pieces of different specifications in combination with the jacking device. It can not only support the rapid adjustment or replacement of calendering wheels of different widths, so that it can be compatible with pole pieces of different sizes and shapes, improve the applicability and flexibility of the calendering wheel, improve the production efficiency and maintainability of the equipment, but also realize the precise adjustment of the position of the calendering wheel; by combining the flexibly adjustable calendering wheel with the working roller and the support roller in the same frame to calender the pole piece and the pole ear, it is ensured that appropriate pressure and treatment are applied to the pole ear area, thereby improving the stability and quality of the pole piece; and the device is designed with a support roller with edges and curved surfaces, and the clamping force of the calendering wheel can be adjusted by rotating the curved surface, thereby realizing the clamping state of the calendering wheel or the support state that is convenient for adjustment and replacement. The structure is simple and easy to operate, which improves the ease of operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure shows a schematic structural diagram of a tab calendering device in one embodiment of the utility model;

[0016] Figure 2 Shown Figure 1 Schematic diagram of the cross section along the aa axis.

[0017] In the figure: 1. support roller; 2. working roller; 3. calendering wheel; 4. support roller; 5. hydraulic device; 6. servo motor; 7. slider; 8. linear guide; 9. outer support frame; 10. support plate; 11. bottom plate. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example 1

[0021] refer to Figure 2 , this embodiment provides a quick-change adjustable device for a calendering wheel, including a clamping device and a jacking device;

[0022] The lifting device is arranged below the calendering wheel, and the telescopic end of the lifting device bears the calendering wheel to adjust the distance between the calendering wheel and the working roll;

[0023] The two clamp arms of the clamp device are respectively located on both sides of the calendering wheel bearing; when the calendering wheel does not need to be replaced, the two clamp arms clamp the calendering wheel bearing, and when the calendering wheel needs to be replaced, the two clamp arms release the calendering wheel bearing. Example 2

[0024] like Figure 1 As shown, this embodiment provides a tab calendering device, including a quick-change adjustable device for the calendering wheel as described in Example 1. Example 3

[0025] like Figure 2 As shown, based on Example 2, this example also makes the following design.

[0026] The tab rolling device also includes a rolling wheel 3, a working roller 2 and an outer support frame 9; the clamping device and the lifting device are both connected to the inner wall of the outer support frame 9, and the positions of the clamping device and the lifting device are relatively fixed, the output end of the lifting device receives the rolling wheel 3, and the clamping device is arranged on both sides of the bearing of the rolling wheel 3; the central axes of the rolling wheel 3 and the working roller 2 are both connected to the inner side wall of the outer support frame 9, and the rolling wheel 3 abuts against the working roller 2 through the pole piece belt moving thereon.

[0027] The pole tab rolling device also includes a support roller 1, and the support roller 1 and the working roller 2 are respectively installed in the outer support frame 9, and the support roller 1 is located at the top of the outer support frame 9, and the top of the working roller 2 abuts against the bottom of the support roller 1, and the working roller 2 is combined with the support roller 1 to support and transmit the pole piece band.

[0028] The top of the calendering wheel 3 faces the bottom of the working roller 2 and the pole lug area of ​​the pole piece strip, and is used to calender the pole lug area of ​​each pole piece on the pole piece strip in combination with the working roller 2. The size of the calendering wheel 3 can be replaced according to the calendering requirements of different pole pieces. When the clamping device is in a clamping state of the calendering wheel, it is used to fix the calendering wheel 3. When the clamping device is in a loosening state of the calendering wheel, it is used to adjust or replace the calendering wheel 3.

[0029] The two clamp arms of the clamp device include a support plate 10 and a support roller 4 respectively arranged on both sides of the bearing of the calendering wheel 3, and the support roller can be divided into a triangular prism and a semi-cylinder; when the clamp device is in a clamping state, the support plate 10 and a plane of the triangular prism are parallel to each other, and respectively abut against the bearing of the calendering wheel 3 to fix the position of the calendering wheel 3; when the clamp device is in a loosened state, the support plate 10 and the curved surface of the semi-cylinder respectively abut against the bearing of the calendering wheel 3, and the force of the semi-cylinder on the calendering wheel 3 is obliquely upward, and the pressure on the calendering wheel 3 in the horizontal direction is reduced, which is convenient for taking out and replacing calendering wheels 3 of different widths.

[0030] The quick-change adjustable device also includes a displacement device and a lifting device. The displacement device is arranged at the bottom of the outer support frame 9 and its output end is connected to the bottom plate 11. The bottom of the bottom plate 11 is connected to the displacement device and the clamping device. The lifting device is arranged at the top of the bottom plate 11 and supports the calendering wheel 3.

[0031] The displacement device includes a linear guide 8, a servo motor 6 and a slider 7, and the lifting device adopts a hydraulic device 5; the linear guide 8 and the servo motor 6 are both fixed on the outer support frame 9, and the extension direction of the linear guide 8 is consistent with the extension direction of the central axis of the calendering wheel 3, and the slider 7 is slidably arranged in the linear guide 8 and connected to the bottom of the base plate 11; the positions of the clamping device and the hydraulic device 5 are relatively fixed and can be driven by the slider 7 at the same time, and the position of the slider 7 is adjusted by the servo motor 6 to flexibly adjust the working position of the calendering wheel 3 in the horizontal direction according to different pole piece sizes or shapes; the hydraulic device 5 is arranged on the top of the base plate 11, and is used to adjust the calendering force of the calendering wheel 3 on the pole ear according to the calendering requirements of pole pieces of different specifications or materials, so as to ensure effective calendering effect on the pole ear area.

[0032] Add a multifunctional calendering wheel 3 design, design a calendering wheel 3 with variable functions, and adopt a replaceable calendering panel or edge shape so that it can adapt to pole pieces of different shapes, different materials or different thicknesses to achieve wider applicability and customization needs.

[0033] In this embodiment, an adaptive calendering system is added to the tab calendering device, and sensor technology and adaptive control algorithms are introduced to enable the calendering system to monitor the shape and quality of the tab area in real time, and automatically adjust the pressure and position of the calendering wheel 3 according to actual conditions, so as to achieve more accurate and intelligent tab processing.

[0034] In this embodiment, an online quality monitoring system and an automated production line integration function are added, and image processing technology or sensor technology is combined to establish a real-time tab quality detection system, which can monitor and identify defects or problems in the tab area during the calendering process, and adjust the calendering parameters in time to avoid the production of defective products. The tab calendering device is seamlessly integrated with the entire lithium battery production line to achieve automated control and data sharing, improve production efficiency and quality management level, so as to better adapt to large-scale production needs. Example 4

[0035] This embodiment provides an operating method of a tab calendering device, and the steps are as follows.

[0036] 1. Place the lithium battery pole piece to be processed between the support roller 1 and the working roller 2 to ensure that it is stably supported and transferred in the device.

[0037] 2. Start the hydraulic device 5 to provide the required calendering force.

[0038] 3. By controlling the servo motor 6, the position of the support assembly is adjusted to accurately control the calendering operation of the calendering wheel 3 on the pole piece and ear area.

[0039] 4. According to different specifications or requirements of the pole piece, the calendering wheel 3 can be replaced or adjusted by rotating the supporting roller 4.

[0040] 5. During the calendering process, the pressure of the hydraulic device 5 is adjusted as needed to ensure that appropriate pressure is applied to the pole piece and ear area to improve its shape and quality.

[0041] 6. After the calendering operation is completed, the pole piece that has been calendered by the pole ear will continue to flow into the main rolling roller in the rolling process for pole piece rolling.

[0042] In this embodiment, it should be noted that after replacing pole pieces of different specifications, the operation steps of the pole tab rolling device are as follows.

[0043] 1. Stop the operation of the calendering device: Before replacing electrodes of different specifications, ensure that the calendering device is in the stopped state and disconnect the power supply.

[0044] 2. Unloading the current calender wheel 3: Unfasten the connection parts of the support roller 4 fixing the calender wheel 3, and remove the current calender wheel 3 from the device. Ensure that this process is safe and reliable to avoid damage to the device and the calender wheel 3.

[0045] 3. Select and install the calendering wheel 3 suitable for the new specification of the pole piece: Select the calendering wheel 3 that matches the requirements of the new specification of the pole piece, and install it correctly into the calendering device according to the instructions of the device or the operating manual. Ensure that the calendering wheel 3 and the support roller 4 are firmly and stably connected.

[0046] 4. Adjust position and parameters: Use servo motor 6 to control slider 7 to move the newly installed calendering wheel 3 to the correct position. According to the requirements of the new specification pole piece, it may be necessary to adjust the pressure parameters or other operating parameters of the hydraulic device 5.

[0047] 5. Check the status of the device: Before restarting, carefully check the connection status of all components and the overall operation of the device. Make sure that all adjusted and replaced parts meet the requirements and the device is in normal and operational condition.

[0048] 6. Restart the device and start production: Start the calendering device, ensure that the newly installed calendering wheel 3 runs correctly, and perform the tab calendering operation. According to the actual production situation, adjust the parameters and conduct necessary monitoring to ensure that the new specification pole piece obtains the expected calendering effect.

[0049] 7. Continuous monitoring and adjustment: During the production process, continuously monitor the operation of the calendering device and adjust the pressure, position or other parameters as needed to ensure that the tab area is properly processed and calendered.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A quick-change adjustable device for a calender wheel, characterized in that: It includes a clamping device and a lifting device; The jacking device is arranged below the calendering wheel (3), and the telescopic end of the jacking device receives the calendering wheel to adjust the distance between the calendering wheel (3) and the working roller; The two clamp arms of the clamp device are respectively located on both sides of the bearing of the calendering wheel (3); when the calendering wheel (3) does not need to be replaced, the two clamp arms clamp the bearing of the calendering wheel (3); when the calendering wheel (3) needs to be replaced, the two clamp arms release the bearing of the calendering wheel (3).

2. The quick-change adjustable device for the calendering wheel according to claim 1, characterized in that: One clamp arm of the clamp device is a fixed clamp arm, and the other clamp arm is a movable clamp arm. The bearing of the calendering wheel is clamped or loosened through the movement of the movable clamp arm.

3. The quick-change adjustable device for the calendering wheel according to claim 2, characterized in that: The fixed clamp arm is a support plate (10) fixed to one side of the calendering wheel, and the movable clamp arm is a support roller (4) rotatably arranged on the other side of the calendering wheel (3). The outer wall of the support roller (4) is provided with at least a first support surface and a second support surface. When the first support surface is opposite to the support plate (10), the bearing of the calendering wheel (3) is clamped, and when the second support surface is opposite to the support plate (10), the bearing of the calendering wheel (3) is released.

4. The quick-change adjustable device for the calendering wheel according to claim 3, characterized in that: The first supporting surface is a plane, and the second supporting surface is a curved surface.

5. The quick-change adjustable device for the calendering wheel according to claim 1, characterized in that: It also includes a displacement device, on which a jacking device is arranged, and the displacement device drives the jacking device to move along the bearing direction of the calendering wheel.

6. A tab calendering device, characterized in that: A quick-change adjustable device comprising a calender wheel as described in any one of claims 1-5.

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