A winding apparatus and a deviation rectifying mechanism thereof

Abstract

The utility model provides a kind of winding equipment and its rectification mechanism, the rectification mechanism of winding equipment, comprising: pedestal, angle rotary fixed seat, angle rotary seat and material conveying component;Pedestal is provided with parallel rectification drive component, parallel rectification drive component is used to drive angle rotary fixed seat to and fro in preset direction, angle rotary fixed seat is provided with non-parallel rectification drive component;Angle rotary seat is rotationally cooperated with angle rotary fixed seat;Preset direction is parallel with the axial direction of driving roller, and the rotation axis of angle rotary seat is perpendicular to the material conveying direction in pinch gap and preset direction.The rectification mechanism of winding equipment of the utility model can rectify when parallel misplacement occurs to material, and also can rectify in non-parallel misplacement condition that material has rotated a certain angle relative to the axis parallel to material thickness direction, so two directions of rectification can be realized, effectively avoid the problem of material misplacement, so as to improve the passing rate of cell winding.

Description

Technical Field

[0001] This utility model relates to the field of battery cell technology, specifically to a winding device and its correction mechanism. Background Technology

[0002] The winding process is a procedure in which the positive electrode, separator, and negative electrode are precisely stacked together to form the basic shape of a battery cell. Its core objective is to ensure that the three layers of material (positive electrode-separator-negative electrode-separator) are tightly and neatly wound around a central axis under tension control, ensuring precise relative positioning between each layer without misalignment. Excessive tension fluctuations during electrode or separator unwinding, leading to material deformation, non-parallelism between guide rollers, and inaccurate electrode unwinding direction, can all cause "deviation" during belt feeding, resulting in misalignment of the positive electrode, separator, and negative electrode.

[0003] Among them, misalignment types usually include parallel misalignment and non-parallel misalignment. Parallel misalignment refers to the misaligned material being parallel to other materials but not completely overlapping them. Non-parallel misalignment refers to the misaligned material being non-parallel to other normal materials. For example, the misaligned material is rotated at a certain angle relative to the axis parallel to the material thickness direction, resulting in non-parallel misalignment.

[0004] Current correction mechanisms only consider correcting parallel misalignment when correcting materials such as electrodes or separators, without considering the correction situation when the misaligned material has rotated a certain angle relative to the axis parallel to the material thickness direction. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies in the prior art and to provide a winding device and its correction mechanism.

[0006] One embodiment of this utility model provides a correction mechanism for a winding device, comprising:

[0007] A base on which a parallel correction drive assembly is provided;

[0008] An angle-rotating fixed seat is slidably engaged with the base. The parallel correction drive assembly is drivenly connected to the angle-rotating fixed seat and is used to drive the angle-rotating fixed seat to move back and forth in a preset direction. The angle-rotating fixed seat is provided with a non-parallel correction drive assembly.

[0009] An angle rotating seat, wherein the angle rotating seat is rotatably engaged with the angle rotating fixed seat, and the non-parallel correction drive assembly is drivenly engaged with the angle rotating seat;

[0010] A material conveying assembly includes an active roller, a pressure roller, a roller power module, and a clamping drive module. The active roller is rotatably mounted on the angle rotating seat. The roller power module is driven to the active roller. The clamping drive module is driven to the pressure roller. The pressure roller moves closer to or away from the active roller under the drive of the clamping drive module. A clamping gap for clamping materials is formed between the active roller and the pressure roller.

[0011] The preset direction is parallel to the axial direction of the drive roller, and the rotation axis of the angle rotating seat is perpendicular to both the material conveying direction and the preset direction within the clamping gap.

[0012] In some optional embodiments, connecting shafts are provided on both sides of the angle rotating seat, and the connecting shafts are rotatably engaged with the angle rotating fixed seat.

[0013] In some optional embodiments, the base is provided with a material inlet structure, which includes two guide plates arranged side by side on the base, and a material guiding channel is formed between the guide plates. The material guiding channel gradually narrows in the direction close to the clamping gap.

[0014] In some alternative embodiments, the base is provided with a clearance groove for material to pass through, and a portion of the guide plate passes through the clearance groove from the side of the base away from the clamping gap.

[0015] In some optional embodiments, the angle rotation fixing seat is provided with a plurality of linear slide rails, and the angle rotation fixing seat slides in cooperation with the base through the linear slide rails.

[0016] In some optional embodiments, the clamping drive module includes a roller mounting plate and a translation drive module. The roller mounting plate is slidably disposed on the angle rotating seat. The translation drive module is drivenly connected to the roller mounting plate and is used to drive the roller mounting plate to move closer to or away from the active roller. The pressure roller is rotatably disposed on the roller mounting plate.

[0017] In some optional embodiments, both the roller power module and the non-parallel correction drive assembly are drive motors, the output shaft of the roller power module is driven and connected to the active roller, and the output shaft of the non-parallel correction drive assembly is driven and connected to the angle rotation seat.

[0018] In some optional embodiments, the parallel correction drive assembly includes a ball screw, a correction motor, and a sliding block. The ball screw is rotatably mounted on the base and extends in the preset direction. The correction motor is driven and connected to the ball screw. The sliding block is threadedly engaged with the ball screw and is connected to the angle rotation fixing seat.

[0019] In some alternative implementations, the correction mechanism of the winding device further includes a lifting drive assembly, which is drivenly connected to the base and used to drive the base to lift.

[0020] Another embodiment of this utility model provides a winding device, including: a winding device correction mechanism as described above.

[0021] Compared with the prior art, the correction mechanism of the winding equipment of this utility model can correct the material when it is parallel misaligned, and it can also correct the material when it is non-parallel misaligned and rotated at a certain angle relative to the axis parallel to the thickness direction of the material. Therefore, it can achieve correction in two directions, effectively avoid the problem of material misalignment, and thus improve the pass rate of battery cell winding.

[0022] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the correction mechanism of a winding device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of one side of the correction mechanism of a winding device according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure when the material being processed and other materials are parallelly misaligned during the material winding process.

[0026] Figure 4 This is a schematic diagram of the structure when the material being processed and other materials are misaligned and not parallel during the material winding process.

[0027] Figure 5 An exploded view of the correction mechanism of a winding device according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the other side of the correction mechanism of the winding device according to one embodiment of the present invention;

[0029] Figure 7 This is an exploded view of one side of the correction mechanism of a winding device according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Base; 11. Parallel alignment drive assembly; 111. Ball screw; 112. Alignment motor; 113. Sliding block; 12. Material feeding structure; 121. Guide plate; 13. Clearance groove; 20. Angle rotation fixed seat; 21. Non-parallel alignment drive assembly; 22. Linear slide rail; 30. Angle rotation seat; 31. Connecting shaft; 40. Material conveying assembly; 41. Drive roller; 411. Clamping gap; 42. Pressure roller; 43. Roller power module; 44. Clamping drive module; 441. Roller mounting plate; 442. Translation drive module; 50. Lifting drive assembly; 51. Lifting guide rail. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, 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 indicated technical features.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Please see Figures 1 to 2 This invention provides a web-correcting mechanism for a winding device, comprising:

[0037] Base 10, on which a parallel correction drive assembly 11 is provided;

[0038] An angular rotation fixing seat 20 is slidably engaged with the base 10. A parallel correction drive assembly 11 is driven to the angular rotation fixing seat 20 and is used to drive the angular rotation fixing seat 20 to move back and forth in a preset direction. A non-parallel correction drive assembly 2111 is provided on the angular rotation fixing seat 20.

[0039] Angle rotation seat 30 is rotatably engaged with angle rotation fixed seat 20, and non-parallel correction drive component 2111 is driven to engage with angle rotation seat 30.

[0040] The material conveying assembly 40 includes an active roller 41, a pressure roller 42, a roller power module 43, and a clamping drive module 44. The active roller is rotatably mounted on the angle rotating seat 30. The roller power module 43 is driven to the active roller 41. The clamping drive module 44 is driven to the pressure roller 42. The pressure roller 42 moves closer to or further away from the active roller 41 under the drive of the clamping drive module 44. A clamping gap 411 for clamping materials is formed between the active roller 41 and the pressure roller 42. The clamping gap 411 extends along the axial direction of the active roller 41.

[0041] The preset direction is parallel to the axial direction of the drive roller 41, and the rotation axis of the angle rotating seat 30 is perpendicular to the material conveying direction within the pinch gap 411. The axial direction of the drive roller 41 is parallel to the extension direction of the pinch gap 411, the material conveying direction within the pinch gap 411 is perpendicular to the extension direction of the pinch gap 411, and the preset direction is also perpendicular to the rotation axis of the angle rotating seat 30.

[0042] The working principle of the correction mechanism of the winding equipment according to one embodiment of the present invention is explained below:

[0043] The material to be processed passes sequentially through the material inlet structure 12 and the clamping gap 411. Then, the pressure roller 42 is pressed against the drive roller 41 under the drive of the clamping drive module 44. The drive roller 41 rotates under the drive of the roller power module 43, and then the friction between the drive roller 41 and the material to be processed is used to drive the material to be processed to move, thereby realizing the clamping of the material. The conveying direction of the material to be processed is perpendicular to the axial direction of the drive roller 41.

[0044] Please see Figure 3 When the material to be processed is misaligned, although the material to be processed and other materials are in a parallel state, they cannot overlap because of the misalignment. Therefore, the parallel correction drive component 11 drives the angle rotation fixed seat 20 to move back and forth in a preset direction to adjust the position, thereby driving the angle rotation seat 30 and the material conveying component 40 to adjust the position back and forth in the preset direction, so that the material to be processed clamped by the active roller 41 and the pressure roller 42 can adjust the position relative to other materials.

[0045] Please see Figure 4 When the material to be processed is offset by a certain angle from the axis parallel to the thickness direction of the material to be processed, it cannot be attached to other materials. Therefore, the non-parallel correction drive component 2111 angle rotation seat 30 rotates relative to the axis parallel to the thickness direction of the material to be processed, thereby driving the material conveying component 40 to rotate relative to the axis parallel to the thickness direction of the material to be processed. This allows the material to be processed, which is clamped by the drive roller 41 and the pressure roller 42, to adjust its angle relative to the axis parallel to the thickness direction of the material to be processed, thereby satisfying the angle adjustment of the material to be processed and other materials.

[0046] In this embodiment, the pressure roller 42 is a rubber roller.

[0047] Please see Figure 5 In some optional embodiments, connecting shafts 31 are provided on both sides of the angle rotation seat 30. The connecting shafts 31 are rotatably engaged with the angle rotation fixed seat 20. The angle rotation seat 30 improves the rotational stability relative to the angle rotation fixed seat 20 through the connecting shafts 31 on both sides.

[0048] Please see Figure 6 The specific structure of the material inlet structure 12 can be designed according to actual needs. For example, in some optional embodiments, the material inlet structure 12 is provided on the base 10. The material inlet structure 12 includes two guide plates 121. The two guide plates 121 are arranged side by side on the base 10, and a material guiding channel is formed between the guide plates 121. The material guiding channel gradually narrows in the direction close to the clamping gap 411. The two guide plates 121 cooperate to guide the material to be processed toward the clamping gap 411. The gradually narrowing material guiding channel helps to improve the accuracy of the material being processed aligned with the clamping gap 411.

[0049] Please see Figure 7 In this embodiment, the base 10 is provided with a clearance groove 13 for material to pass through. A portion of the guide plate 121 passes through the clearance groove 13 from the side of the base 10 away from the clamping gap 411. The guide plate 121 passes through the clearance groove 13 and extends toward the clamping gap 411, so that the guide plate 121 can get closer to the clamping gap 411, so that the material to be processed is more stably guided into the clamping gap 411.

[0050] In some optional embodiments, a plurality of linear slide rails 22 are provided between the angle rotation fixing seat 20 and the base 10. The angle rotation fixing seat 20 slides with the base 10 through the linear slide rails 22. The design of the linear slide rails 22 improves the movement stability of the angle rotation fixing seat 20. The linear slide rails 22 can be fixed on the base 10, and a plurality of sliders are provided on the angle rotation fixing seat 20. The angle rotation fixing seat 20 slides with the linear slide rails 22 through the sliders. Alternatively, the linear slide rails 22 can be fixed on the angle rotation fixing seat 20, and a plurality of sliders are provided on the base 10. The angle rotation fixing seat 20 slides with the sliders on the base 10 through the linear slide rails 22. In this embodiment, a plurality of sliders are provided on the base 10, and a plurality of linear slide rails 22 are provided on the angle rotation fixing seat 20. The same linear slide rail 22 slides with a plurality of sliders, thereby further improving the movement stability of the angle rotation fixing seat 20.

[0051] The specific structure of the clamping drive module 44 can be designed according to actual needs. For example, in some optional embodiments, the clamping drive module 44 includes a roller mounting plate 441 and a translation drive module 442. The roller mounting plate 441 is slidably mounted on the angle rotating seat 30. The translation drive module 442 is drivenly connected to the roller mounting plate 441 and is used to drive the roller mounting plate 441 to move closer to or away from the active roller 41. The pressure roller 42 is rotatably mounted on the roller mounting plate 441. The translation drive module 442 drives the roller mounting plate 441 to move, thereby driving the pressure roller 42 located on the roller mounting plate 441 to move closer to or away from the active roller 41. The translation drive module 442 can adopt a suitable structure such as a cylinder, hydraulic cylinder, or electric cylinder, and is not limited to this example.

[0052] In some optional embodiments, both the roller power module 43 and the non-parallel correction drive component 2111 are drive motors. The output shaft of the roller power module 43 is driven and connected to the active roller 41, thereby driving the rotation of the active roller 41. The roller power module 43 can be set on the angle rotation seat 30. The output shaft of the non-parallel correction drive component 2111 is driven and connected to the angle rotation seat 30, thereby driving the rotation of the angle rotation seat 30. In this embodiment, the non-parallel correction drive component 2111 is arranged on one side of the angle rotation fixed seat 20. The output shaft of the non-parallel correction drive component 2111 is driven and connected to one of the connecting shafts 31 through a coupling.

[0053] The specific structure of the parallel correction drive assembly 11 can be designed according to actual needs. For example, the parallel correction drive assembly 11 can be a screw drive assembly, a rotary motor translation drive assembly, a belt translation drive assembly, a cylinder translation drive assembly, or a linear motor translation drive assembly, etc. In this embodiment, the parallel correction drive assembly 11 includes a ball screw 111, a correction motor 112, and a sliding block 113. The ball screw 111 is rotatably mounted on the base 10 and extends in a preset direction. The correction motor 112 is driven and connected to the ball screw 111. The sliding block 113 is threadedly engaged with the ball screw 111 and is connected to the angle rotation fixed seat 20. The correction motor 112 drives the ball screw 111 to rotate, thereby driving the sliding block 113 to move, and thus driving the angle rotation fixed seat 20 to move back and forth in the preset direction.

[0054] In this embodiment, both the correction motor 112 and the drive motor are servo motors.

[0055] In some optional embodiments, the correction mechanism of the winding equipment also includes a lifting drive assembly 50, which is drivenly connected to the base 10 and is used to drive the base 10 to rise and fall. When the material to be processed needs to pass through the guide channel and the clamping gap 411, the base 10 can be driven to rise to facilitate the passing and arrangement of the material to be processed.

[0056] The specific structure of the lifting drive assembly 50 can be designed according to actual needs. For example, the lifting drive assembly 50 can be a lead screw drive assembly, a rotary motor translation drive assembly, a belt translation drive assembly, a cylinder translation drive assembly, or a linear motor translation drive assembly, etc. In this embodiment, the lifting drive assembly 50 adopts a structure similar to the parallel correction drive assembly 11. To improve the stability of the base 10, a lifting guide rail 51 is also arranged on one side of the base 10. The base 10 can be lifted and lowered along the lifting guide rail 51 under the drive of the lifting drive assembly 50. The lifting guide rail 51 can be fixed in a suitable position, such as on the frame of the winding equipment.

[0057] The aforementioned winding device correction mechanism can be applied to a winding device, which includes: the aforementioned winding device correction mechanism.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A correction mechanism for a winding device, characterized in that, include: A base on which a parallel correction drive assembly is provided; An angle-rotating fixed seat is slidably engaged with the base. The parallel correction drive assembly is drivenly connected to the angle-rotating fixed seat and is used to drive the angle-rotating fixed seat to move back and forth in a preset direction. The angle-rotating fixed seat is provided with a non-parallel correction drive assembly. An angle rotating seat, wherein the angle rotating seat is rotatably engaged with the angle rotating fixed seat, and the non-parallel correction drive assembly is drivenly engaged with the angle rotating seat; A material conveying assembly includes an active roller, a pressure roller, a roller power module, and a clamping drive module. The active roller is rotatably mounted on the angle rotating seat. The roller power module is driven to the active roller. The clamping drive module is driven to the pressure roller. The pressure roller moves closer to or away from the active roller under the drive of the clamping drive module. A clamping gap for clamping materials is formed between the active roller and the pressure roller. The preset direction is parallel to the axial direction of the drive roller, and the rotation axis of the angle rotating seat is perpendicular to the material conveying direction within the clamping gap.

2. The correction mechanism for a winding device according to claim 1, characterized in that: Both sides of the angle rotating seat are provided with connecting shafts, which are rotatably engaged with the angle rotating fixed seat.

3. The correction mechanism for a winding device according to claim 1, characterized in that: The base is provided with a material inlet structure, which includes two guide plates arranged side by side on the base. A material guiding channel is formed between the guide plates, and the material guiding channel gradually narrows in the direction close to the clamping gap.

4. The correction mechanism for a winding device according to claim 3, characterized in that: The base is provided with a clearance groove for material to pass through, and a portion of the guide plate passes through the clearance groove from the side of the base away from the clamping gap.

5. The correction mechanism for a winding device according to claim 1, characterized in that: The angle rotation fixing seat is provided with several linear slide rails, and the angle rotation fixing seat slides in cooperation with the base through the linear slide rails.

6. The correction mechanism for a winding device according to claim 1, characterized in that: The clamping drive module includes a roller mounting plate and a translation drive module. The roller mounting plate is slidably disposed on the angle rotating seat. The translation drive module is drivenly connected to the roller mounting plate and is used to drive the roller mounting plate to move closer to or away from the active roller. The pressure roller is rotatably disposed on the roller mounting plate.

7. A winding device correction mechanism according to any one of claims 1 to 6, characterized in that: Both the roller power module and the non-parallel correction drive component are drive motors. The output shaft of the roller power module is connected to the active roller drive, and the output shaft of the non-parallel correction drive component is connected to the angle rotation seat drive.

8. A winding device correction mechanism according to any one of claims 1 to 6, characterized in that: The parallel correction drive assembly includes a ball screw, a correction motor, and a sliding block. The ball screw is rotatably mounted on the base and extends in the preset direction. The correction motor is driven by the ball screw. The sliding block is threadedly engaged with the ball screw and is connected to the angle rotation fixed seat.

9. A correction mechanism for a winding device according to any one of claims 1 to 6, characterized in that, It also includes a lifting drive assembly, which is connected to the base drive assembly and is used to drive the base to lift.

10. A winding device, characterized in that, include: A winding device correction mechanism as described in any one of claims 1 to 9.

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