Roller passing assembly and rolling equipment

Abstract

The utility model relates to a roller passing assembly and rolling equipment, and belongs to the technical field of battery production, the roller passing assembly comprises a linear guide rail, the linear guide rail is slidably connected with two roller frames with an adjustable distance, the two roller frames are both provided with threaded rollers, and the directions of threads on the two threaded rollers are opposite; the locking unit is arranged on the linear guide rail and used for locking the two roller frames so as to fix the axial distance between the two threaded rollers. The axial distance between the two threaded rollers can be adjusted, so that the two threaded rollers can be aligned and support a dressing area on a coating pole piece, the tension of the coating pole piece is guided to the two sides of the coating pole piece from the middle by effectively utilizing threads of the two threaded rollers, and the problems that the coating pole piece is deformed, the tension in the horizontal direction is uneven and wrinkles are accumulated are solved; the roller passing assembly can be matched with thinner and wider foils, and when the roller passing assembly is applied to roller passing equipment, the manufacturing capacity of battery electrodes can be improved, waste can be reduced, and industrialization of thinner and wider base materials is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a roller assembly and a rolling device. Background Art

[0002] During the continuous coating process in battery production, the coated electrode is easily deformed after passing through the oven and has uneven surface tension, which causes the blank area of ​​the coated electrode to shrink and wrinkle when passing through a large-angle roller. During subsequent die-cutting and winding production, the electrode ears are easily folded and warped due to wrinkling, scratching the electrode and resulting in a large amount of scrap, seriously affecting the production quality rate and increasing production costs.

[0003] In the related art, a coating electrode wrinkle removal device with authorization announcement number CN214290013U, and a roller assembly, coating equipment and rolling equipment with authorization announcement number CN214290013U all disclose the use of threaded rollers for wrinkle removal, but the clockwise thread and the counter-clockwise thread are continuously arranged on the surface of the same threaded roller, and the positions of the clockwise thread and the counter-clockwise thread cannot be effectively adjusted according to the dressing area on the coating electrode, and the thread corresponding to the blank area will be suspended in the air due to the support of the dressing area and will not be effectively utilized.

[0004] Therefore, it is necessary to study and improve the above structure and provide a roller assembly and rolling equipment in order to achieve a more practical purpose. Summary of the invention

[0005] The embodiments of the present application provide a roller assembly and a rolling device to solve the problem in the related art that the positions of the forward thread and the reverse thread cannot be effectively adjusted according to the position of the dressing on the coating electrode, and the thread corresponding to the blank area will be suspended in the air due to the support of the dressing area and will not be effectively utilized.

[0006] In a first aspect, an embodiment of the present application provides a roller assembly, comprising:

[0007] A linear guide rail, on which two roller frames with adjustable spacing are slidably connected, both roller frames are equipped with threaded rollers, and the threads on the two threaded rollers are in opposite directions;

[0008] A locking unit is arranged on the linear guide rail and is used to lock the two roller frames to fix the axial distance between the two threaded rollers.

[0009] In the first aspect, in some embodiments, a slide groove cooperating with the roller frame is provided on the linear guide rail, and the locking unit includes a plurality of tightening components arranged in the slide groove and installed at intervals along the length direction of the slide groove, and the tightening components are used to tighten the roller frame.

[0010] In the first aspect, in some embodiments, the tightening component is a pneumatic ejector, which includes an ejector seat fixed in the slide groove, and the ejector seat is provided with an ejector and a pneumatic chamber. The pneumatic chamber drives the ejector to extend and retract by connecting to an air source to inflate and discharge air.

[0011] In the first aspect, in some embodiments, the end of the roller frame is slidably connected to the linear guide rail via a slider, and a rolling body for supporting the slider is provided in the linear guide rail.

[0012] In a first aspect, in some embodiments, the diameters of the two threaded rollers are the same, and the central axes of the two threaded rollers coincide.

[0013] In the first aspect, in some embodiments, a clamping roller is provided on one side of the threaded roller, and the clamping roller is used to cooperate with the threaded roller to clamp the sheet-like object passing through the roller.

[0014] In the first aspect, some embodiments further include a driving unit for driving the clamping roller to approach or move away from the threaded roller.

[0015] In a first aspect, in some embodiments, the driving unit includes two first telescopic components slidably connected to the linear guide rail, and the clamping roller is connected between the two first telescopic components.

[0016] In the first aspect, in some embodiments, the roller frame includes two second telescopic components slidably connected to the linear guide rail, and the threaded roller is connected between the two second telescopic components.

[0017] In a second aspect, an embodiment of the present application provides a rolling device, comprising:

[0018] A roller assembly as described in any of the above items.

[0019] The beneficial effects of the technical solution provided by this application include:

[0020] An embodiment of the present application provides a roller assembly and a rolling device, which has two roller frames with adjustable spacing slidably connected thereto due to a linear guide rail, and both roller frames are equipped with threaded rollers, and the threads on the two threaded rollers are in opposite directions; a locking unit is arranged on the linear guide rail, and is used to lock the two roller frames to fix the axial spacing between the two threaded rollers.

[0021] Therefore, the axial spacing between the two threaded rollers can be adjusted so that the two threaded rollers can be aligned and support the dressing area on the coated electrode. The threads of the two threaded rollers can be effectively used to guide the tension of the coated electrode from the middle to the two sides of the coated electrode, thereby reducing the problem of uneven tension and accumulated wrinkling in the horizontal direction of the coated electrode deformation, thereby avoiding shrinkage and wrinkling in the dressing area and the blank area. The roller assembly of the present application can adapt to thinner and wider foils. Its application in roller equipment can improve the manufacturing capacity of battery electrodes, reduce waste, and contribute to the industrialization of thinner and wider substrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of the structure of the roller assembly provided in an embodiment of the present application;

[0024] Figure 2 A schematic cross-sectional view of a linear guide provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a tightening component provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the distribution of the first pipeline and the second pipeline provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of the implementation of the roller assembly provided in an embodiment of the present application.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Linear guide; 11. Slide; 12. Rolling element; 2. Roller frame; 21. Slider; 22. Clearance hole; 3. Threaded roller; 4. Tightening component; 41. Ejector seat; 42. Ejector; 43. Pneumatic chamber; 5. Clamping roller; 6. Roller shaft; 7. First telescopic component; 71. Cylinder body; 72. Piston; 73. First pipeline; 8. Second telescopic component; 81. Second pipeline. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The embodiments of the present application provide a roller assembly and a rolling device, which can solve the problem in the related art that the positions of the forward thread and the reverse thread cannot be effectively adjusted according to the position of the dressing on the coating electrode, and the thread corresponding to the blank area will be suspended in the air due to the support of the dressing area and will not be effectively utilized.

[0032] See also Figures 1 to 5 As shown, the first aspect of the embodiment of the present application provides a roller assembly, comprising:

[0033] A linear guide rail 1 is slidably connected to two roller frames 2 with adjustable spacing, and both roller frames 2 are equipped with threaded rollers 3, and the threads on the two threaded rollers 3 are in opposite directions;

[0034] The locking unit is arranged on the linear guide rail 1 and is used to lock the two roller frames 2 to fix the axial distance between the two threaded rollers 3 .

[0035] The linear guide 1 of the roller assembly of the embodiment of the present application is arranged perpendicular to the conveying direction of the coating electrode. When in use, the two roller frames 2 on the sliding linear guide 1 respectively drive the two threaded rollers 3 to move. When the two threaded rollers 3 are aligned with the dressing area on the coating electrode, the two roller frames 2 are locked by the locking unit on the linear guide 1 to fix the positions of the two threaded rollers 3.

[0036] Furthermore, the axial spacing between the two threaded rollers 3 can be adjusted so that the two threaded rollers 3 can be aligned with and support the dressing area on the coating electrode, and the threads on the two threaded rollers 3 are in opposite directions. Therefore, the threads of the two threaded rollers 3 can be effectively utilized to guide the tension of the coating electrode from the middle to the two sides of the coating electrode, thereby reducing the problem of uneven tension and accumulated wrinkling in the horizontal direction of the coating electrode deformation, thereby avoiding shrinkage and wrinkling in the dressing area and the blank area.

[0037] The roller assembly of the present application can adjust the axial spacing between the two threaded rollers 3 so that the ends of the two threaded rollers 3 that are away from each other are aligned with the two sides of the foil, ensuring that the tension of the foil is guided from the middle to the two sides to laterally flatten the foil, thereby being able to adapt to thinner and wider foils. Its application in roller equipment can improve the manufacturing capacity of battery electrodes, reduce waste, and contribute to the industrialization of thinner and wider substrates.

[0038] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a roller assembly, a linear guide rail 1 of the roller assembly is provided with a slide groove 11 that cooperates with the roller frame 2, and the locking unit includes a plurality of tightening components 4 that are arranged in the slide groove 11 and installed at intervals along the length direction of the slide groove 11, and the tightening components 4 are used to tighten the roller frame 2.

[0039] A slide groove 11 is provided on the linear guide rail 1 of the roller assembly of the embodiment of the present application, and the roller frame 2 is installed in the slide groove 11 and has sliding freedom in the length direction of the slide groove 11. The locking unit includes a plurality of tightening components 4 arranged in the slide groove 11, and the plurality of tightening components 4 are installed at intervals along the length direction of the slide groove 11. When it is necessary to fix the positions of the two roller frames 2, the tightening components 4 at the position where the roller frames 2 are located can be used to tighten the roller frames 2 to fix the positions of the roller frames 2.

[0040] Exemplarily, the tightening component 4 can be a fixing pin installed on the linear guide 1, or a clamping tool for holding the roller frame 2 against the linear guide 1, or a micro cylinder installed on the linear guide 1. The function of the tightening component 4 is to fix the position of the roller frame 2 on the linear guide 1. Other tightening components 4 that can achieve such functions can be used in this application. Those skilled in the art can adaptably select the tightening component 4 according to the usage scenario and test conditions.

[0041] In some alternative embodiments: See Figures 1 to 3 As shown, an embodiment of the present application provides a roller assembly, the tightening component 4 of the roller assembly is a pneumatic ejector, which includes an ejector seat 41 fixed in the slide groove 11, and an ejector 42 and a pneumatic chamber 43 are arranged in the ejector seat 41. The pneumatic chamber 43 drives the ejector 42 to extend and retract by connecting to an air source to inflate and discharge air.

[0042] The tightening component 4 of the embodiment of the present application adopts a pneumatic ejector, which includes an ejector seat 41, an ejector 42 and a pneumatic chamber 43 arranged in the ejector seat 41. For example, the end of the roller frame 2 is slidably connected to the linear guide 1 through the slider 21. When in use, the ejector seat 41 is fixed in the slide groove 11, and the ejector 42 extends in the direction toward the slider 21. The pneumatic chamber 43 is connected to the external air source through the air inlet (not shown in the figure) on the ejector seat 41. The pneumatic chamber 43 realizes the extension and retraction of the ejector 42 by charging and deflating air.

[0043] When it is necessary to fix the positions of the two roller frames 2 on the linear guide 1, the pneumatic ejector at the position of the roller frames 2 is inflated, so that the ejector 42 in the ejector seat 41 is extended to press the slider 21, thereby fixing the position of the roller frames 2. When it is necessary to adjust the position of the roller frames 2, the pneumatic ejector at the position of the roller frames 2 is deflated, so that the ejector 42 in the ejector seat 41 is retracted and returned to its original position, thereby pushing the roller frames 2 to move along the linear guide 1.

[0044] In some alternative embodiments: See Figure 2 As shown, an embodiment of the present application provides a roller assembly, wherein the end of a roller frame 2 of the roller assembly is slidably connected to a linear guide rail 1 via a slider 21 , and a rolling body 12 for supporting the slider 21 is disposed in the linear guide rail 1 .

[0045] The end of the roller frame 2 of the roller assembly of the embodiment of the present application is slidably connected to the linear guide 1 through a slider 21. A rolling body 12 is installed in the slide groove 11 of the linear guide 1. When the roller frame 2 slides along the slide groove 11, the rolling body 12 can support the slider 21. The contact position between the roller frame 2 and the rolling body 12 is rolling friction, which can improve the stability and smoothness during sliding movement.

[0046] In some alternative embodiments: See Figure 1 As shown, an embodiment of the present application provides a roller assembly, in which two threaded rollers 3 have the same diameter and the central axes of the two threaded rollers 3 coincide with each other.

[0047] The two threaded rollers 3 of the roller assembly of the embodiment of the present application have the same diameter, and the central axes of the two threaded rollers 3 coincide, and the threads on the two threaded rollers 3 are in opposite directions. When in use, the two threaded rollers 3 can apply lateral tensions of equal magnitude and opposite directions to the coating electrode, and can stably flatten the lateral wrinkles in the width direction of the coating electrode to avoid shrinkage and wrinkling in the dressing area and the blank area.

[0048] In some alternative embodiments: See Figure 1 As shown, an embodiment of the present application provides a roller assembly, in which a clamping roller 5 is provided on one side of a threaded roller 3 of the roller assembly, and the clamping roller 5 is used to cooperate with the threaded roller 3 to clamp the sheet-like rolling object.

[0049] A clamping roller 5 is installed on one side of the threaded roller 3 of the roller assembly of the embodiment of the present application. When in use, the distance between the two roller frames 2 on the linear guide rail 1 can be adjusted first so that the two threaded rollers 3 can be aligned and coat the dressing area on the electrode piece, and then the clamping roller 5 is used to cooperate with the threaded roller 3 to clamp the coated electrode piece to stabilize the conveying direction of the coated electrode piece.

[0050] In some alternative embodiments: See Figure 1 As shown, an embodiment of the present application provides a roller assembly, which also includes a driving unit for driving the clamping roller 5 to move closer to or away from the threaded roller 3.

[0051] The roller assembly of the embodiment of the present application includes a driving unit, which can be used to drive the clamping roller 5 to approach or move away from the threaded roller 3, so that the clamping roller 5 and the threaded roller 3 can cooperate to clamp the coating electrode.

[0052] In some alternative embodiments: See Figure 1 , Figure 2 and Figure 4 As shown, an embodiment of the present application provides a roller assembly, the driving unit of which includes two first telescopic components 7 slidably connected to the linear guide rail 1 , and a clamping roller 5 is connected between the two first telescopic components 7 .

[0053] The driving unit of the roller assembly of the embodiment of the present application includes two first telescopic parts 7 slidably connected to the linear guide rail 1, and the clamping roller 5 is installed between the two first telescopic parts 7. The two first telescopic parts 7 are synchronously extended and retracted, thereby driving the clamping roller 5 to move closer to or away from the threaded roller 3.

[0054] Exemplarily, in this embodiment, the first telescopic component 7 adopts a pneumatic telescopic cylinder, which includes a cylinder body 71 and a piston 72 located inside the cylinder body 71. The end of the cylinder body 71 is slidably connected to the slide groove 11 through a slider 21. The end of the piston 72 is connected to the roller shaft 6. The clamping roller 5 is sleeved on the roller shaft 6. There are two clamping rollers 5 for matching with the two threaded rollers 3. The clamping roller 5 can rotate around the roller shaft 6 or slide along the length direction of the roller shaft 6, so as to facilitate the adjustment of the axial position of the clamping roller 5 to match the threaded roller 3 for clamping.

[0055] In addition, in the present embodiment, the first telescopic component 7 is inflated and deflated through the first pipeline 73. To prevent the first pipeline 73 from interfering with the conveyance of the coated electrode, the first pipeline 73 is passed through the slide groove 11 of the linear guide 1 and is located on both sides of the two roller frames 2. Both ends of the slide groove 11 are opened to facilitate the extension of the first pipeline 73. When the first telescopic component 7 moves, it can drive the first pipeline 73 to move without affecting the inflation and deflation of the first telescopic component 7.

[0056] In some alternative embodiments: See Figure 1 , Figure 2 and Figure 4 As shown, an embodiment of the present application provides a roller assembly, wherein a roller frame 2 of the roller assembly includes two second telescopic components 8 slidably connected to a linear guide rail 1 , and a threaded roller 3 is connected between the two second telescopic components 8 .

[0057] The roller frame 2 of the roller assembly of the embodiment of the present application includes two second telescopic parts 8 slidably connected to the linear guide rail 1, and the threaded roller 3 is installed between the two second telescopic parts 8. The two second telescopic parts 8 are synchronously telescoped, thereby driving the threaded roller 3 to approach or move away from the clamping roller 5.

[0058] Exemplarily, in this embodiment, the second telescopic component 8 also adopts a pneumatic telescopic cylinder, which has the same structure as the first telescopic component 7. The telescopic end of the second telescopic component 8 is rotatably connected to the thread roller 3, so as to facilitate the adjustment of the height position of the thread roller 3 to cooperate with the clamping roller 5 for clamping.

[0059] In addition, in the present embodiment, the second telescopic component 8 is inflated and deflated through the second pipeline 81. To prevent the second pipeline 81 from interfering with the conveyance of the coated electrode, the second pipeline 81 is passed through the slide groove 11 of the linear guide rail 1 and extends out of the openings at both ends of the slide groove 11. A clearance hole 22 for the second pipeline 81 to pass through is provided on the slider 21 connected to the first telescopic component 7. When the second telescopic component 8 moves, it can drive the second pipeline 81 to move without affecting the inflation and deflation of the second telescopic component 8.

[0060] See also Figures 1 to 5 As shown, the second aspect of the embodiment of the present application provides a rolling device, comprising:

[0061] The roller assembly of any of the above embodiments.

[0062] Since the rolling equipment of the embodiment of the present application adopts the roller assembly of the above embodiment, when in use, the axial spacing between the two threaded rollers 3 can be adjusted so that the two threaded rollers 3 can align and support the dressing area on the coated electrode, and the threads of the two threaded rollers 3 can be effectively used to guide the tension of the coated electrode from the middle to the two sides of the coated electrode, thereby reducing the problem of uneven tension accumulation and wrinkling in the horizontal direction of the coated electrode deformation, and avoiding shrinkage and wrinkling in the dressing area and the blank area. The roller equipment of the present application can improve the production capacity of battery electrode manufacturing, reduce waste, and contribute to the industrialization of thinner and wider substrates.

[0063] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0064] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A roller assembly, characterized in that: include: A linear guide rail (1) is slidably connected to two roller frames (2) with adjustable spacing, and the two roller frames (2) are both equipped with threaded rollers (3), and the threads on the two threaded rollers (3) are in opposite directions; A locking unit is arranged on the linear guide rail (1) and is used to lock the two roller frames (2) to fix the axial distance between the two threaded rollers (3).

2. The roller assembly according to claim 1, characterized in that: The linear guide rail (1) is provided with a slide groove (11) cooperating with the roller frame (2), and the locking unit comprises a plurality of tightening components (4) arranged in the slide groove (11) and installed at intervals along the length direction of the slide groove (11), and the tightening components (4) are used to tighten the roller frame (2).

3. The roller assembly according to claim 2, characterized in that: The tightening component (4) is a pneumatic ejector, which comprises an ejector seat (41) fixed in the slide groove (11), wherein an ejector (42) and a pneumatic chamber (43) are arranged in the ejector seat (41), and the pneumatic chamber (43) is connected to an air source to charge and discharge air to drive the ejector (42) to extend and retract.

4. The roller assembly according to claim 1, characterized in that: The end of the roller frame (2) is slidably connected to the linear guide rail (1) via a slider (21), and a rolling body (12) for supporting the slider (21) is arranged in the linear guide rail (1).

5. The roller assembly according to claim 1, characterized in that: The diameters of the two threaded rollers (3) are the same, and the central axes of the two threaded rollers (3) coincide.

6. The roller assembly according to claim 1, characterized in that: A clamping roller (5) is provided on one side of the threaded roller (3), and the clamping roller (5) is used to cooperate with the threaded roller (3) to clamp the sheet-like object passing through the roller.

7. The roller assembly according to claim 6, characterized in that: It also comprises a driving unit, which is used to drive the clamping roller (5) to approach or move away from the threaded roller (3).

8. The roller assembly according to claim 7, characterized in that: The driving unit comprises two first telescopic components (7) slidably connected to the linear guide rail (1), and the clamping roller (5) is connected between the two first telescopic components (7).

9. The roller assembly according to claim 6, characterized in that: The roller frame (2) comprises two second telescopic components (8) slidably connected to the linear guide rail (1), and the threaded roller (3) is connected between the two second telescopic components (8).

10. A rolling device, characterized in that: include: The roller assembly according to any one of claims 1 to 9.

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