Shaping equipment for oval roll core

Abstract

The utility model discloses shaping equipment for an elliptical roll core, and relates to the technical field of lithium battery processing equipment. The shaping device is provided with a shaping station and is used for extruding the side wall and / or the two ends of an oval roll core in the shaping station, so that the oval roll core is converted into a cylindrical roll core; and the adjusting device is used for detecting the long axis of the oval roll core and adjusting the deflection angle of the oval roll core according to the long axis, so that the oval roll core enters the shaping station of the shaping device according to the preset angle. The utility model discloses a cylindrical lithium battery shaping device and aims to enable an elliptical roll core to enter a shaping station according to a preset angle in a cylindrical lithium battery shaping process.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing equipment, in particular to a shaping device for an elliptical winding core. Background Art

[0002] In the field of new energy vehicles and mobile power storage, cylindrical lithium batteries are widely used due to their outstanding safety performance, high cost performance, and mature and stable production process.

[0003] In the manufacturing process of cylindrical batteries, the winding process is a core link, which involves processing the positive and negative electrode materials and separators into winding cores through winding technology. The accuracy of this link is directly related to a series of important indicators such as battery capacity, performance and safety. Due to the quality fluctuations of production raw materials and the control accuracy limitations of the winding process, the wound cores often appear elliptical rather than ideal circles. This will lead to the risk of failure to enter the shell or damaging the core during the shelling process during the battery assembly process, seriously affecting the production efficiency and yield of the battery.

[0004] In order to solve the above problems, the commonly used method now is to reshape the core. The cylindrical lithium battery is squeezed into a cylindrical shape by a shaping device. However, the direction of the major axis of the ellipse is not fixed, and the major axis of the ellipse of the core cannot be effectively shaped, resulting in a poor roundness shaping effect of the core.

[0005] Therefore, in the process of shaping cylindrical lithium batteries, how to make the elliptical winding core enter the shaping station at a predetermined angle has become a technical problem that needs to be solved urgently. Utility Model Content

[0006] The main purpose of the utility model is to provide a shaping device for an elliptical winding core, which enables the elliptical winding core to enter a shaping station at a predetermined angle during the shaping process of a cylindrical lithium battery.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a shaping device for an elliptical winding core, comprising:

[0008] A shaping device, with a shaping station, for pressing the side wall and / or both ends of the elliptical winding core in the shaping station to transform the elliptical winding core into a cylindrical winding core; and

[0009] The adjusting device is used to detect the major axis of the elliptical winding core and adjust the deflection angle of the elliptical winding core according to the major axis so that the elliptical winding core enters the shaping station of the shaping device at a predetermined angle.

[0010] In one embodiment of the present application, the adjustment device includes:

[0011] An infrared rangefinder, disposed on one side of the elliptical winding core, for detecting the long axis of the elliptical winding core;

[0012] a rotating assembly, used for supporting the elliptical winding core, and driving the elliptical winding core to rotate when the infrared rangefinder detects the elliptical winding core; and

[0013] The driving member is connected to the rotating assembly and is used to drive the rotating assembly to move to the shaping station after the infrared rangefinder completes the detection, so that the elliptical winding core on the rotating assembly enters the shaping station.

[0014] In one embodiment of the present application, the rotating assembly includes:

[0015] A feeding fixture is connected to the driving member and can move with the driving member;

[0016] At least four rotating driven wheels are evenly distributed at both ends of the feeding fixture, and the rotating driven wheels located at the same end of the feeding fixture cooperate with each other to form a supporting platform. When the elliptical winding core is placed on the feeding fixture, the two ends of the elliptical winding core are respectively overlapped with the supporting platforms at both ends of the feeding fixture; and

[0017] The driving roller drives the elliptical winding core on the feeding fixture to rotate when the infrared rangefinder detects the elliptical winding core.

[0018] In one embodiment of the present application, the driving roller is covered with a rubber sleeve, and the rubber sleeve can abut against the side wall of the elliptical winding core.

[0019] In one embodiment of the present application, the width of the driving roller is greater than the width of the rotating driven wheel.

[0020] In one embodiment of the present application, the shaping device comprises:

[0021] a first height extrusion; and

[0022] The second height extrusion piece is arranged opposite to the first height extrusion piece to form a shaping station. When the elliptical core is placed in the shaping station, the first height extrusion piece can extrude the first end of the elliptical core, and the second height extrusion piece can extrude the second end of the elliptical core to achieve the shaping of the height of the elliptical core.

[0023] In one embodiment of the present application, the shaping device further comprises:

[0024] The first roundness shaping member is arranged opposite to the feeding clamp and can squeeze a side of the side wall of the elliptical winding core close to the first end.

[0025] In one embodiment of the present application, the shaping device further comprises:

[0026] The second roundness shaping member is arranged opposite to the feeding clamp and can squeeze a side of the side wall of the elliptical winding core close to the second end.

[0027] In one embodiment of the present application, the shaping device further comprises:

[0028] The guide rail is arranged below the second height extrusion member, and its length direction coincides with the movement direction of the second height extrusion member. The first height extrusion member is connected to the guide rail and can reciprocate along the length direction of the guide rail to approach or move away from the second height extrusion member.

[0029] By adopting the above technical solution, the side wall and / or both ends of the core can be adjusted with high precision by setting a shaping device to extrude and shape the elliptical core, so that the elliptical core can be restored to a cylindrical shape. The adjustment device can automatically adjust the deflection angle of the elliptical core according to the actual long axis position of the core, so that the long axis of the elliptical core coincides with the long axis of the shaping station, thereby ensuring the consistency and accuracy of the shaping effect. Since it does not require manual intervention, it effectively improves production and work efficiency, reduces the labor burden, and reduces human errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0031] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;

[0032] 10. Elliptical winding core; 20. Infrared rangefinder; 31. Feeding fixture; 32. Rotating driven wheel; 33. Driving roller; 40. Driving member; 51. First height extrusion member; 52. Second height extrusion member; 61. First roundness shaping member; 62. Second roundness shaping member. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.

[0034] like Figure 1 As shown, in order to achieve the above-mentioned purpose, the utility model proposes a shaping device for an elliptical winding core 10, comprising:

[0035] A shaping device, with a shaping station, for pressing the side walls and / or both ends of the elliptical winding core 10 in the shaping station to transform the elliptical winding core 10 into a cylindrical winding core; and

[0036] The adjusting device is used to detect the major axis of the elliptical winding core 10 and adjust the deflection angle of the elliptical winding core 10 according to the major axis, so that the elliptical winding core 10 enters the shaping station of the shaping device at a predetermined angle.

[0037] Specifically, a shaping device for an elliptical core 10 includes a shaping device and an adjusting device, wherein the shaping device contains a shaping station, and a telescopic cylinder, a piston, or other driving mechanism can be set in the shaping station, and the telescopic cylinder, the piston, or other driving mechanism are respectively connected to the main frame of the shaping device. When the elliptical core 10 is placed in the shaping station, the telescopic cylinder, the piston, or other driving mechanism is used to squeeze the two ends and / or side walls of the elliptical core 10, thereby realizing the shaping of the elliptical core 10.

[0038] The adjusting device is located at the feed end of the shaping device. Before the elliptical core 10 enters the shaping station, the adjusting device detects the long axis of the elliptical core 10 through components such as a visual system, infrared detection, or laser detection. After detecting the position of the long axis, it determines whether the long axis of the current elliptical core 10 is aligned with the long axis of the shaping station. When there is an angular deviation between the long axis of the elliptical core 10 and the long axis of the shaping station, the adjusting device adjusts the long axis of the elliptical core 10 to be aligned with the extrusion component in the shaping station by rotating, flipping, moving, etc., and then feeds the elliptical core 10 into the shaping device.

[0039] By adopting the above technical solution, the side wall and / or both ends of the core can be adjusted with high precision by setting a shaping device to extrude and shape the elliptical core 10, so that the elliptical core 10 can be restored to a cylindrical shape. The adjustment device can automatically adjust the deflection angle of the elliptical core 10 according to the actual long axis position of the core, so that the long axis of the elliptical core 10 coincides with the long axis of the shaping station, thereby ensuring the consistency and accuracy of the shaping effect. Since it does not require manual intervention, it effectively improves production and work efficiency, reduces the labor burden, and reduces human errors.

[0040] In one embodiment of the present application, the adjustment device includes:

[0041] An infrared rangefinder 20, disposed on one side of the elliptical winding core 10, for detecting the long axis of the elliptical winding core 10;

[0042] A rotating assembly, used for supporting the elliptical winding core 10, and driving the elliptical winding core 10 to rotate when the infrared rangefinder 20 detects the elliptical winding core 10; and

[0043] The driving member 40 is connected to the rotating assembly, and is used to drive the rotating assembly to move to the shaping station after the infrared rangefinder 20 completes the detection, so that the elliptical winding core 10 on the rotating assembly enters the shaping station.

[0044] Specifically, the adjustment device includes an infrared rangefinder 20, a rotating assembly, and a driving member 40; wherein the infrared rangefinder 20 is a device that uses infrared rays to measure distance. It mainly calculates the distance by emitting infrared rays and receiving the reflection of infrared rays. The installation position of the infrared rangefinder 20 needs to be able to directly measure the elliptical winding core 10, and the infrared rangefinder 20 can be attached to the main body of the device through a bracket or other structure. It can also be set on one side of the device through a bracket or other structure. The installation position of the infrared rangefinder 20 is not limited in this application. The data output of the infrared rangefinder 20 is connected to the management system, thereby realizing the long axis detection of the elliptical winding core 10 and controlling the rotation of the rotating assembly.

[0045] The rotating assembly is used to support the elliptical winding core 10. The rotating assembly can be a U-shaped support frame, and a driving roller is arranged at the bottom of the U-shaped support frame to drive the elliptical winding core 10 placed thereon to rotate; or it can be a supporting platform with a groove, and the elliptical winding core 10 is placed in the groove of the supporting platform. A driving roller 33 that can be pressed on the elliptical winding core 10 is arranged above the supporting platform. When the infrared rangefinder 20 detects the long axis of the elliptical winding core 10, the elliptical winding core 10 is driven to rotate by the driving roller 33. When the infrared rangefinder 20 completes the measurement, the driving member 40 will receive the electrical signal to control the movement of the rotating assembly, so that the winding core enters the shaping station.

[0046] The infrared rangefinder 20 is disposed on one side of the elliptical core 10 to detect the long axis of the elliptical core 10. The rotating assembly is located below the elliptical core 10, and is used to support the elliptical core 10 and rotate it when the infrared rangefinder 20 detects the long axis of the elliptical core 10. The driving member 40 is connected to the rotating assembly, receives control instructions, and then drives the rotating assembly and the elliptical core 10 to move toward the shaping station.

[0047] The working principle of the infrared rangefinder 20 is as follows:

[0048] The infrared distance meter 20 measures the roundness and long axis of the elliptical core 10, and the infrared distance meter 20 is completed by point-to-point (single point) or scanning measurement. The infrared distance meter 20 measures the distance at different points on the surface of the elliptical core, and records the minimum value (the distance between the elliptical core 10 and the infrared distance meter 20) and the maximum value (the long axis of the ellipse). By comparing these data, the roundness information of the core can be obtained, and the direction of the long axis can be accurately calculated by software.

[0049] According to the position of the ellipse major axis, the control system further directs the rotating assembly to adjust the ellipse core 10 so that its major axis is aligned with the predetermined shaping tool. This ensures that the ellipse core 10 is geometrically correctly oriented before entering the profiling fixture of the shaping device, thereby achieving efficient and accurate shaping processing.

[0050] By adopting the above technical solution, the infrared rangefinder 20 can accurately measure the long axis of the elliptical core 10, thereby providing an accurate reference for the subsequent rotation and positioning. Through the data of the infrared rangefinder 20, the rotating assembly can automatically adjust the rotation angle according to the position of the long axis of the elliptical core 10, making the shaping process more accurate and reducing human errors. Due to the automatic coordination of the driving member 40, the rotating assembly and the infrared rangefinder 20, the entry and exit process of the core can be automated, greatly improving efficiency and output.

[0051] In one embodiment of the present application, the rotating assembly includes:

[0052] The feeding fixture 31 is connected to the driving member 40 and can move with the driving member 40;

[0053] At least four rotating driven wheels 32 are evenly distributed at both ends of the feeding fixture 31. The rotating driven wheels 32 at the same end of the feeding fixture 31 cooperate with each other to form a supporting platform. When the elliptical winding core 10 is placed on the feeding fixture 31, the two ends of the elliptical winding core 10 are respectively overlapped with the supporting platforms at both ends of the feeding fixture 31; and

[0054] The driving roller 33 drives the elliptical winding core 10 on the feeding fixture 31 to rotate when the infrared rangefinder 20 detects the elliptical winding core 10 .

[0055] Specifically, the rotating assembly includes a feeding fixture 31, at least four rotating driven wheels 32, and a driving roller 33. The feeding fixture 31 is U-shaped, and the U-shaped feeding fixture 31 is convenient for carrying the elliptical winding core 10. The feeding fixture 31 is installed on the driving member 40 by screws or bolts, and can move with the movement of the driving member 40.

[0056] The rotating driven wheels 32 are evenly distributed at both ends of the feeding fixture 31. For ease of understanding, the present application takes four rotating driven wheels as an example, namely the first rotating driven wheel, the second rotating driven wheel, the third rotating driven wheel, and the fourth rotating driven wheel. Among them, the first rotating driven wheel and the second rotating driven wheel are installed at the first end of the feeding fixture; the third rotating driven wheel and the fourth rotating driven wheel are installed at the second end of the feeding fixture, the first rotating driven wheel and the second rotating driven wheel cooperate with each other to form a first supporting platform, the third rotating driven wheel and the fourth rotating driven wheel cooperate with each other to form a second supporting platform, and the first supporting platform and the second supporting platform are at the same horizontal height. When the elliptical core is placed on the feeding fixture, the first end of the elliptical core is overlapped on the first supporting platform, and the second end of the elliptical core is overlapped on the second supporting platform.

[0057] The driving roller 33 is installed above the first supporting platform through a bracket. When the elliptical core 10 is placed in the feeding fixture 31 and the infrared rangefinder 20 performs long axis detection on the elliptical core 10, the driving roller 33 adheres to the side wall of the elliptical core 10, driving the elliptical core 10 to rotate.

[0058] By adopting the above technical solution, the rotating driven wheel 32 and the driving roller 33 are used in coordination, so that the rotation and angle adjustment of the battery cell can be flexibly performed, thereby adapting to battery cells of various sizes and shapes. The supporting platform formed by the rotating driven wheel 32 can stably carry the battery cell, prevent it from deflecting or sliding during the production process, and ensure the smooth progress of the entire production process.

[0059] In an embodiment of the present application, the driving roller 33 is covered with a rubber sleeve, and the rubber sleeve can abut against the side wall of the elliptical winding core 10 .

[0060] By adopting the above technical solution, the rubber has good friction characteristics, reduces slippage, and ensures effective transmission of driving force. The rubber sleeve can play a buffering role, reducing the scratches or damage that may be caused when the hard driving roller 33 directly contacts the side wall of the elliptical winding core 10, and protecting the surface of the battery cell from wear.

[0061] In one embodiment of the present application, the width of the driving roller 33 is greater than the width of the rotating driven wheel 32 .

[0062] By adopting the above technical solution, the width of the driving roller 33 is larger, which can provide a larger contact area, which helps to provide a more stable driving force when rotating the elliptical core 10 and reduce the risk of the core sliding or slipping due to the small contact area.

[0063] In one embodiment of the present application, the shaping device comprises:

[0064] A first height extrusion 51; and

[0065] The second height extrusion member 52 is arranged opposite to the first height extrusion member 51 to form a shaping station. When the elliptical core 10 is placed in the shaping station, the first height extrusion member 51 can extrude the first end of the elliptical core 10, and the second height extrusion member 52 can extrude the second end of the elliptical core 10 to achieve the height shaping of the elliptical core 10.

[0066] Specifically, the shaping device includes a first height extrusion member 51 and a second height extrusion member 52. The first height extrusion member 51 is arranged at one end of the shaping station. The first height extrusion member 51 is used to apply pressure to extrude the first end of the elliptical winding core 10. This extrusion member can be driven by pneumatic, hydraulic or mechanical means to ensure the accuracy and stability of the applied force. The surface of the first height extrusion member 51 is covered with a flexible material, such as rubber or soft plastic, in order to maximize the protection of the winding core material from damage.

[0067] The second height extrusion 52 is arranged opposite to the first height extrusion 51. The second height extrusion 52 cooperates with the first height extrusion 51 and applies pressure to the other end of the elliptical core 10 at the same time. The second height extrusion 52 and the first height extrusion 51 together form a shaping station surrounding the core. The second height extrusion 52 is the same as the first height extrusion 51. Of course, according to the design needs, different structural shapes can also be designed according to the specific requirements of the core. The movement of the two extrusions can be synchronized or independently controlled to adapt to cores of different shapes and sizes and achieve customized shaping.

[0068] When the elliptical winding core 10 is placed in the shaping station, the two extrusion members cooperate to accurately adjust the degree of deformation in the height direction of the elliptical winding core 10. The second height extrusion member 52 and the first height extrusion member 51 can dynamically adjust the extrusion force.

[0069] With the above technical solution, during the shaping process, the extruder uses the precisely calculated force to steadily compress the height of the elliptical winding core 10 to the required size. This operation is extremely valuable for industries with strict size control, such as high-precision electronic component manufacturing. The entire process is highly automated, greatly reducing human errors, improving work efficiency and the quality reliability of the final product.

[0070] In one embodiment of the present application, the shaping device further comprises:

[0071] The first roundness shaping member 61 is disposed opposite to the feeding fixture 31 and can press a side of the side wall of the elliptical winding core 10 close to the first end.

[0072] Specifically, the first roundness shaping member 61 can apply lateral pressure to squeeze the side of the side wall of the elliptical winding core 10 close to the first end, so as to adjust the roundness of the winding core.

[0073] The first height extrusion member 51 and the second height extrusion member 52 are respectively located at two ends of the winding core and are responsible for adjusting the height of the winding core. They work synchronously with the first roundness shaping member 61 to achieve accurate shaping of the overall shape of the winding core.

[0074] The above technical solution is adopted, which realizes multi-angle shaping of the elliptical core 10, including height adjustment and roundness adjustment, by combining shaping pieces with different positioning, thereby ensuring the high consistency and accuracy of the core shape. Through the relative arrangement of the feeding fixture 31 and the first roundness shaping piece 61, the device can stabilize the core during the shaping process, avoid shape deviation caused by improper operation, and thus improve the stability and accuracy of the shaping process. It can be imagined that when the elliptical core 10 is highly extruded, the elliptical core 10 is firstly extruded in roundness while maintaining the extrusion state, and then the elliptical core 10 is highly extruded to achieve pressure isolation.

[0075] In one embodiment of the present application, the shaping device further comprises:

[0076] The second roundness shaping member 62 is disposed opposite to the feeding fixture 31 and can press a side of the side wall of the elliptical winding core 10 close to the second end.

[0077] Specifically, the second roundness shaping member 62 may also apply lateral pressure to squeeze the side of the side wall of the elliptical winding core 10 close to the second end, so as to adjust the roundness of the winding core.

[0078] By adopting the above technical solution, through the relative arrangement of the feeding fixture 31 and the second roundness shaping member 62, the device can stabilize the winding core during the shaping process, avoid shape deviation caused by improper operation, and thus improve the stability and accuracy of the shaping process.

[0079] In one embodiment of the present application, the shaping device further comprises:

[0080] The guide rail is arranged below the second height extrusion member 52 , and its length direction coincides with the movement direction of the second height extrusion member 52 . The first height extrusion member 51 is connected to the guide rail and can reciprocate along the length direction of the guide rail to approach or move away from the second height extrusion member 52 .

[0081] Specifically, the guide rail is set up in the shaping device and placed below the second height extrusion 52. The guide rail is responsible for providing a smooth path to support the precise movement of the first height extrusion 51. The first height extrusion 51 is connected to the guide rail through a screw mechanism, which is a prior art and will not be described here one by one. This connection allows the extrusion to reciprocate along the length direction of the guide rail.

[0082] By adopting the above technical solution, the guide rail provides a stable moving platform, so that the first height extrusion piece 51 can move accurately along the set path, and the operator can easily adjust the distance between the extrusion pieces as needed, which provides great flexibility in processing cores of different sizes and specifications.

[0083] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A shaping device for an elliptical winding core, characterized in that: include: A shaping device, with a shaping station, for pressing the side wall and / or both ends of the elliptical winding core in the shaping station to transform the elliptical winding core into a cylindrical winding core; and The adjusting device is used to detect the major axis of the elliptical winding core and adjust the deflection angle of the elliptical winding core according to the major axis so that the elliptical winding core enters the shaping station of the shaping device at a predetermined angle.

2. The shaping device for an elliptical winding core according to claim 1, characterized in that: The adjusting device comprises: An infrared rangefinder, disposed on one side of the elliptical winding core, for detecting the long axis of the elliptical winding core; a rotating assembly, used for supporting the elliptical winding core, and driving the elliptical winding core to rotate when the infrared rangefinder detects the elliptical winding core; and The driving member is connected to the rotating assembly and is used to drive the rotating assembly to move to the shaping station after the infrared rangefinder completes the detection, so that the elliptical winding core on the rotating assembly enters the shaping station.

3. The shaping device for an elliptical winding core according to claim 2, characterized in that: The rotating assembly comprises: A feeding fixture is connected to the driving member and can move with the driving member; At least four rotating driven wheels are evenly distributed at both ends of the feeding fixture, and the rotating driven wheels located at the same end of the feeding fixture cooperate with each other to form a supporting platform. When the elliptical winding core is placed on the feeding fixture, the two ends of the elliptical winding core are respectively overlapped with the supporting platforms at both ends of the feeding fixture; and The driving roller drives the elliptical winding core on the feeding fixture to rotate when the infrared rangefinder detects the elliptical winding core.

4. The shaping device for an elliptical winding core according to claim 3, characterized in that: The driving roller is covered with a rubber sleeve, and the rubber sleeve can abut against the side wall of the elliptical winding core.

5. The shaping device for an elliptical winding core according to claim 3, characterized in that: The width of the driving roller is greater than the width of the rotating driven wheel.

6. The shaping device for an elliptical winding core according to any one of claims 3 to 5, characterized in that: The shaping device comprises: a first height extrusion; and The second height extrusion piece is arranged opposite to the first height extrusion piece to form a shaping station. When the elliptical core is placed in the shaping station, the first height extrusion piece can extrude the first end of the elliptical core, and the second height extrusion piece can extrude the second end of the elliptical core to achieve the shaping of the height of the elliptical core.

7. The shaping device for an elliptical winding core according to claim 6, characterized in that: The shaping device also includes: The first roundness shaping member is arranged opposite to the feeding fixture and can press a side of the side wall of the elliptical winding core close to the first end.

8. The shaping device for an elliptical winding core according to claim 7, characterized in that: The shaping device also includes: The second roundness shaping member is arranged opposite to the feeding clamp and can squeeze a side of the side wall of the elliptical winding core close to the second end.

9. The shaping device for an elliptical winding core according to claim 6, characterized in that: The shaping device also includes: The guide rail is arranged below the second height extrusion member, and its length direction coincides with the movement direction of the second height extrusion member. The first height extrusion member is connected to the guide rail and can reciprocate along the length direction of the guide rail to approach or move away from the second height extrusion member.

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