Automatic deviation rectifying device in drying oven and drying oven

Abstract

The utility model relates to the technical field of battery pole piece production, and discloses an automatic deviation rectifying device in a drying oven and the drying oven, the deviation rectifying device comprises a support frame, a grabbing assembly, a moving assembly and a rotating assembly; the rotating assembly is arranged on the supporting frame, the moving assembly is hinged to the supporting frame, the rotating assembly is in transmission connection with the moving assembly, and the rotating assembly pushes the moving assembly to rotate around a hinge point; the grabbing assembly is in transmission connection with the moving assembly, the moving assembly drives the grabbing assembly to linearly move to be close to the edge of the pole piece, and the grabbing assembly is used for grabbing the edge of the pole piece. According to the scheme, the supporting frame is arranged in the drying oven, the moving assembly drives the grabbing assembly to get close to the edge of the pole piece, the grabbing assembly grabs the edge of the pole piece, the rotating assembly drives the grabbing assembly to rotate to apply pulling force to the pole piece, so that the pole piece is aligned, and meanwhile the moving assembly is matched to enable the pole piece to return to a normal conveying interval; therefore, deviation rectification in the pole piece conveying process is achieved.

Description

Technical Field

[0001] This utility model relates to the field of battery electrode production technology, and in particular to an automatic alignment device and an oven. Background Technology

[0002] Electrodes are a core component of lithium-ion batteries, mainly composed of current collectors and active materials coated on their surface, playing a crucial role in the battery's charging and discharging process. Wet coating methods typically involve uniformly coating a prepared slurry onto the current collector surface using coating equipment. The wet electrode contains a large amount of solvent and requires drying in an oven to remove the solvent and ensure the active material adheres firmly to the current collector. The electrode drying process usually utilizes an air-floating oven. This oven primarily leverages the wall-attachment effect from aerodynamic principles, using air nozzles or guide rails to ensure stable movement of the substrate within the oven. Air blown onto both sides of the electrode instead of a traditional roller conveyor system allows for simultaneous drying of both coating sides while maintaining the electrode's position. However, when moving within the air-floating oven, the electrode is suspended in mid-air, making it susceptible to deviation due to airflow, asymmetrical coating, and uneven tension on the foil.

[0003] Chinese patent CN202223075555.1 discloses an air-float correction mechanism and an oven, including a mounting frame, a correction component, and several guide rollers mounted on the mounting frame. The correction component includes a correction slide and correction rollers mounted above the slide. The correction slide is connected to the mounting frame, which is equipped with a detection component. When the detection component detects a shift in the electrode position, the angle of the correction slide can be adjusted to deflect the electrode, thus completing the correction action. The guide rollers located on both sides below the correction component are air-float rollers that generate a uniform and stable air film after ventilation. This mechanism can achieve electrode correction by adjusting the horizontal angle of the air-float rollers. The adjustment and control are simple, and contact between the correction rollers and the wet surface of the electrode is avoided. This correction method needs further improvement.

[0004] This invention overcomes the shortcomings of the prior art by providing an automatic deviation correction device and an oven for grasping and moving the edge of the electrode sheet to achieve deviation correction. Utility Model Content

[0005] The main objective of this invention is to provide an automatic alignment device for an oven, used for alignment of electrode sheets within the oven. The device includes a support frame, a gripping component, a moving component, and a rotating component. The rotating component is mounted on the support frame, and the moving component is hinged to the support frame. The rotating component is drively connected to the moving component, and the rotating component pushes the moving component to rotate around the hinge point. The gripping component is drively connected to the moving component, and the moving component drives the gripping component to move linearly towards the edge of the electrode sheet. The gripping component is used to grip the edge of the electrode sheet.

[0006] Optionally, the support frame has an L-shaped structure, with a rotating support connecting the movable component on the horizontal section of the support frame, and the rotating component on the vertical section of the support frame;

[0007] Alternatively, the vertical section of the support frame is provided with a rotating support to connect the movable component, and the horizontal section of the support frame is provided with the rotating component.

[0008] Optionally, the rotating assembly includes a first motor, a push plate, a guide rod, a push rod, and a limiting plate. The first motor is fixedly connected to the vertical section of the support frame, the limiting plate is fixedly connected to the vertical section of the support frame, the push plate is located between the two limiting plates, the guide rod is provided between the limiting plates, and the guide rod passes through the push plate. The output end of the first motor is connected to the push rod, the push rod is connected to the push plate, and the push plate is connected to the moving assembly.

[0009] Optionally, the moving component includes a support plate, a second motor, and a guide rail. The second motor is mounted on the support plate, and guide rails are provided on both sides of the second motor. The first end of the support plate is connected to the push plate, and the internal section of the support plate is hinged to the rotating support. The second motor is driven to the gripping component, and the gripping component is matched to the guide rail. The second motor drives the gripping component to move along the guide rail.

[0010] Optionally, a pulley is provided between the bearing plate and the horizontal section of the support frame, the rotating support is located between the pulley and the first end of the bearing plate, the shaft of the pulley is connected to the bearing plate, and the pulley rolls in the pulley seat of the support frame.

[0011] Optionally, the gripping assembly includes a movable seat, a power component, and clamping wheels with their surfaces facing each other. The movable seat is matched and connected to the guide rail. The second motor drives the movable seat to move along the guide rail. The power component and the clamping wheels are located on the movable seat. The axis of the clamping wheels is parallel to the direction of the guide rail. The power component is connected to the clamping wheels via a transmission. The power component drives the clamping wheels to open or clamp.

[0012] Optionally, the power component and the clamping wheel are connected to the movable seat via a connecting seat, and a fine-tuning mechanism is provided between the movable seat and the connecting seat to adjust the relative position of the connecting seat and the movable seat.

[0013] Optionally, the movable seat is provided with a first detection switch, which is located on the same horizontal plane as the clamping wheel, and the first detection switch is used to detect the electrode sheet.

[0014] This utility model also provides an oven for drying electrode sheets, including the above-mentioned correction device and an oven body. The correction device is located inside the oven body. The oven body has an electrode sheet conveying section. The number of correction devices is multiple, arranged front and back along the conveying section, or symmetrically arranged along the conveying section.

[0015] Optionally, a second detection switch is provided in the conveying section of the oven body. The second detection switch is arranged adjacent to the correction device and is used to detect the position of the electrode.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The correction device provided by this utility model is set inside the oven by a support frame. The moving component drives the gripping component to approach the edge of the electrode. The gripping component grips the edge of the electrode, and the rotating component drives the gripping component to rotate and apply a pulling force to the electrode, so that the electrode is straightened. At the same time, the moving component works together to bring the electrode back to the normal transport range, thereby realizing the correction of the electrode during the transport process. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of an embodiment of the automatic deviation correction device inside the drying oven of this utility model;

[0020] Figure 2 This is a schematic diagram of an embodiment of the automatic deviation correction device inside the drying oven of this utility model;

[0021] Figure 3 This is a side view of an embodiment of the automatic deviation correction device inside the oven of this utility model;

[0022] Figure 4 This is an exploded view of an embodiment of the automatic deviation correction device inside the drying oven of this utility model;

[0023] Figure 5 This is a schematic diagram of an embodiment of the oven of this utility model;

[0024] Figure 6 This is a schematic diagram of the interior of an embodiment of the oven of this utility model.

[0025] Figure label:

[0026] 10-Correction device; 11-Support frame; 111-Horizontal section; 112-Vertical section; 113-Rotating support; 12-Gripping assembly; 121-Moving seat; 122-Power component; 123-Clamping wheel; 124-Connecting seat; 125-Fine-adjustment mechanism; 126-First detection switch; 13-Moving assembly; 131-Bearing plate; 132-Second motor; 133-Guide rail; 134-Pulley; 14-Rotating assembly; 141-First motor; 142-Push plate; 143-Guide rod; 144-Push rod; 145-Limiting plate;

[0027] 20 - Oven body; 21 - Second detection switch;

[0028] 30-electrode film. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0030] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] like Figure 1-4 The diagram shown is a schematic representation of an embodiment of the correction device provided by this utility model.

[0033] Please refer to Figure 1-4 This embodiment is used for correcting the deviation of the dried electrode sheet conveyed in the oven. Specifically, the deviation is corrected by grasping and moving the edge of the electrode sheet. Since the edge of the electrode sheet obtained by wet coating is generally free of slurry, the process of grasping and moving the edge of the electrode sheet to correct deviation will not affect the slurry coated on the surface of the electrode sheet.

[0034] This embodiment includes a support frame 11, a gripping component 12, a moving component 13, and a rotating component 14. The rotating component 14 is mounted on the support frame 11, and the moving component 13 is hinged to the support frame 11. The rotating component 14 is driveably connected to the moving component 13, and the rotating component 14 pushes the moving component 13 to rotate around the hinge point. The gripping component 12 is driveably connected to the moving component 13, and the moving component 13 drives the gripping component 12 to move linearly towards the edge of the electrode sheet. The gripping component 12 is used to grip the edge of the electrode sheet.

[0035] When the electrode shifts inside the detection oven, the moving component 13 drives the gripping component 12 to approach the edge of the shifted electrode. After reaching the predetermined position, the gripping component 12 grasps the edge of the electrode. The rotating component 14 drives the moving component 13 and the gripping component 12 to rotate, thereby generating a biasing force that acts on the electrode to counteract the stress of the electrode shift. In conjunction with the movement of the moving component 13, the electrode returns to its original position, thus achieving correction.

[0036] In one embodiment, the support frame 11 has an L-shaped structure. The horizontal section 111 of the support frame 11 is provided with a rotating support 113 connected to the moving component 13, and the vertical section 112 of the support frame 11 is provided with a rotating component 14. The rotating component 14 pushes the moving component 13 to rotate around the rotating support 113 as the fulcrum, generating a biasing force.

[0037] In one embodiment, the rotating assembly 14 includes a first motor 141, a push plate 142, a guide rod 143, a push rod 144, and a limiting plate 145. The first motor 141 is fixedly connected to the vertical section 112 of the support frame 11, and the limiting plate 145 is fixedly connected to the vertical section 112 of the support frame 11. The push plate 142 is located between two limiting plates 145, which are symmetrically arranged. The limiting plates 145 are used to limit the movement range of the push plate 142. A guide rod 143 is provided between the limiting plates 145, and the guide rod 143 passes through the push plate 142. The guide rod 143 is used to support and guide the push plate 142. The output end of the first motor 141 is connected to the push rod 144, which is connected to the push plate 142. The push plate 142 is connected to the moving component 13. The first motor 141 pushes the push rod 144 and the push plate 142 to move linearly, thereby driving the moving component 13 connected to the push plate 142 to rotate around the rotating support 113. Alternatively, the push plate 142 can be replaced with a slider, and the guide rod 143 can be replaced with a lead screw.

[0038] In one embodiment, the moving component 13 includes a support plate 131, a second motor 132, and guide rails 133. The second motor 132 is mounted on the support plate 131, and guide rails 133 are provided on both sides of the second motor 132. Specifically, the second motor 132 is a linear servo motor. The first end of the support plate 131 is connected to a push plate 142, and the internal section of the support plate 131 is hinged to a rotating support 113. The push plate 142 exerts a thrust on the first end of the support plate 131, causing the support plate 131 to rotate around the rotating support 113 as a fulcrum, thereby changing the direction of the second motor 132 and guide rails 133 carried by the support plate 131. The second motor 132 is connected to the gripping component 12, and the gripping component 12 is matched with the guide rails 133. The second motor 132 drives the gripping component 12 to move along the guide rail 133. Specifically, the second motor 132 can drive the gripping component 12 to move along the guide rail 133 through a lead screw transmission. The lead screw is set inside the guide rail 133 and is not shown. It is a conventional transmission structure and will not be described in detail.

[0039] Furthermore, a pulley 134 is provided between the bearing plate 131 and the horizontal section 111 of the support frame 11. A rotating support 113 is located between the pulley 134 and the first end of the bearing plate 131. The pivot of the pulley 134 is connected to the bearing plate 131, and the pulley 134 rolls in the pulley seat of the support frame 11. The pulley 134 is used to support the other end of the bearing plate 131, so that the vertical force on both sides of the bearing plate 131 remains uniform, ensuring the support and rotational stability of the bearing plate 131.

[0040] In one embodiment, the gripping assembly 12 includes a movable base 121, a power component 122, and clamping wheels 123 with their surfaces facing each other. The movable base 121 is matched and connected to a guide rail 133, and a second motor 132 drives the movable base 121 to move along the guide rail 133. The power component 122 and the clamping wheels 123 are located on the movable base 121, and the axis of the clamping wheels 123 is parallel to the axis of the guide rail 133. The power component 122 is drively connected to the clamping wheels 123, and the power component 122 drives the clamping wheels 123 to open or close. When the clamping wheels 123 grip the edge of the electrode sheet, the rotation direction of the clamping wheels 123 is consistent with the conveying direction of the electrode sheet, so gripping the electrode sheet does not affect the conveying of the electrode sheet.

[0041] Specifically, the power component 122 and the clamping wheel 123 are connected to the movable seat 121 via the connecting seat 124. A fine-tuning mechanism 125 is provided between the movable seat 121 and the connecting seat 124 to adjust the relative position of the connecting seat 124 and the movable seat 121. The fine-tuning mechanism 125 is specifically used to adjust the position of the power component 122 and the clamping wheel 123 towards or away from the tail end of the support plate 131. The power component 122 can be a pneumatic clamping finger or an electric clamping finger. There are two clamping wheels 123, one rubber wheel and one steel wheel, or both rubber wheels.

[0042] Furthermore, the movable base 121 is equipped with a first detection switch 126, which is located on the same horizontal plane as the clamping wheel 123. The first detection switch 126 is used to detect the electrode. By detecting the edge position of the electrode through the first detection switch 126, the clamping and opening of the clamping wheel 123 is controlled. The first detection switch 126 can also achieve closed-loop control with the first motor 141, adjusting the angle of rotation of the moving assembly 13 driven by the first motor 141 according to the detected electrode position.

[0043] like Figure 5-6 As shown, this utility model also provides an embodiment of an oven.

[0044] Please refer to Figure 5-6 This oven embodiment is used for drying electrode sheets and includes the aforementioned corrective device 10 embodiment and an oven body 20. The corrective device 10 is located inside the oven body 20, which has an electrode sheet conveying section for conveying the electrode sheets 30. Multiple corrective devices 10 can be used, and their arrangement can be selected according to actual needs. The corrective devices 10 can be arranged along the front and back of the conveying section, or symmetrically arranged along both sides of the conveying section.

[0045] Furthermore, a second detection switch 21 is provided in the conveying section of the oven body 20. The second detection switch 21 is arranged adjacent to the correction device 10 and is used to detect the position of the electrode. Specifically, the second detection switch 21 is used to detect whether the electrode 30 has shifted. When the second detection switch 21 detects that the electrode 30 has shifted, it drives the correction device 10 to correct the electrode.

[0046] In summary, the embodiment of the correction device provided by this utility model is set inside the oven by a support frame. The moving component drives the gripping component to approach the edge of the electrode sheet. The gripping component grips the edge of the electrode sheet, and the rotating component drives the gripping component to rotate and apply a pulling force to the electrode sheet, so that the electrode sheet is straightened. At the same time, the moving component works together to bring the electrode sheet back to the normal transport range, thereby realizing the correction of the electrode sheet during the transport process.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic alignment device for an oven, characterized in that, For electrode alignment in an oven, it includes a support frame, a gripping component, a moving component, and a rotating component; the rotating component is mounted on the support frame, the moving component is hinged to the support frame, the rotating component is driven to the moving component, and the rotating component pushes the moving component to rotate around the hinge point; the gripping component is driven to the moving component, the moving component drives the gripping component to move linearly towards the edge of the electrode, and the gripping component is used to grip the edge of the electrode.

2. The automatic alignment device inside the oven according to claim 1, characterized in that, The support frame has an L-shaped structure. The horizontal section of the support frame is provided with a rotating support to connect the movable component, and the vertical section of the support frame is provided with the rotating component. Alternatively, the vertical section of the support frame is provided with a rotating support to connect the movable component, and the horizontal section of the support frame is provided with the rotating component.

3. The automatic alignment device inside the oven according to claim 2, characterized in that, The rotating assembly includes a first motor, a push plate, a guide rod, a push rod, and a limiting plate. The first motor is fixedly connected to the vertical section of the support frame, and the limiting plate is fixedly connected to the vertical section of the support frame. The push plate is located between the two limiting plates, and the guide rod is provided between the limiting plates, passing through the push plate. The output end of the first motor is connected to the push rod, the push rod is connected to the push plate, and the push plate is connected to the moving assembly.

4. The automatic alignment device inside the drying oven according to claim 3, characterized in that, The moving component includes a support plate, a second motor, and a guide rail. The second motor is mounted on the support plate, and guide rails are provided on both sides of the second motor. The first end of the support plate is connected to the push plate, and the internal section of the support plate is hinged to the rotating support. The second motor is driven to the gripping component, and the gripping component is matched and connected to the guide rail. The second motor drives the gripping component to move along the guide rail.

5. The automatic alignment device inside the drying oven according to claim 4, characterized in that, A pulley is provided between the bearing plate and the horizontal section of the support frame. The rotating support is located between the pulley and the first end of the bearing plate. The shaft of the pulley is connected to the bearing plate. The pulley rolls in the pulley seat of the support frame.

6. The automatic alignment device inside the drying oven according to claim 4, characterized in that, The gripping assembly includes a movable seat, a power component, and clamping wheels with their surfaces facing each other. The movable seat is matched and connected to the guide rail. The second motor drives the movable seat to move along the guide rail. The power component and the clamping wheels are located on the movable seat. The axis of the clamping wheels is parallel to the axis of the guide rail. The power component is connected to the clamping wheels via a transmission. The power component drives the clamping wheels to open or clamp.

7. The automatic alignment device inside the oven according to claim 6, characterized in that, The power component and clamping wheel are connected to the movable seat via a connecting seat. A fine-tuning mechanism is provided between the movable seat and the connecting seat to adjust the relative position of the connecting seat and the movable seat.

8. The automatic alignment device inside the drying oven according to claim 6, characterized in that, The movable base is equipped with a first detection switch, which is located on the same horizontal plane as the clamping wheel. The first detection switch is used to detect the electrode sheet.

9. An oven for drying electrode sheets, characterized in that, Includes the correction device as described in any one of claims 1-8 and the oven body, wherein the correction device is disposed inside the oven body, the oven body is provided with an electrode conveying section, and the number of correction devices is multiple, arranged front and back along the conveying section, or symmetrically arranged along the conveying section.

10. The drying oven according to claim 9, characterized in that, The conveying section of the oven body is equipped with a second detection switch, which is located adjacent to the correction device. The second detection switch is used to detect the position of the electrode sheet.

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