Tab smoothing mechanism for winding machine

Abstract

The utility model relates to a tab flattening mechanism for a winding machine, which comprises a flattening guide plate, the flattening guide plate comprises a guide plate and an arc-shaped flattening plate which are connected with each other, the arc-shaped flattening plate is provided with a concave flattening cambered surface, and the joint of the surface of the guide plate and the flattening cambered surface is in smooth transition; the translation steering mechanism is connected with the smoothing guide plate, and the translation steering mechanism can drive the arc-shaped smoothing plate of the smoothing guide plate to translate and turn over relative to a winding needle of the winding machine. According to the tab flattening mechanism, when the winding needle winds a pole piece at a high speed, the arc-shaped flattening plates of the flattening guide plates partially cover the periphery of the winding core and are arranged at intervals, so that the tabs generating centrifugal force abut against the flattening arc surfaces of the arc-shaped flattening plates. And the smooth cambered surfaces apply force to the outer surfaces of the tabs layer by layer, so that folding and damage of the tabs are effectively reduced, and the rolling quality of the roll core is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery production equipment, and in particular to a tab smoothing mechanism for a winding machine. Background Art

[0002] With the rapid development of the battery industry, the production efficiency of battery cells is increasingly required. As a key process of battery cells, the winding process, the winding efficiency of the winding machine greatly affects the production efficiency of the battery cells.

[0003] Therefore, in order to improve the production efficiency of battery cells, the commonly used method is to increase the winding speed of the winding machine. However, as the winding speed increases, the pole ears connected to the pole sheets will be thrown out under the influence of greater centrifugal force, and the pole ears will be bent, and the quality of the battery cells cannot be guaranteed. Summary of the invention

[0004] The embodiment of the present application provides a tab smoothing mechanism for a winding machine to solve the problem in the related art that the tab is bent due to the influence of a large centrifugal force when the winding machine winds the pole piece at a high speed.

[0005] The embodiment of the present application provides a tab smoothing mechanism for a winding machine, comprising:

[0006] A smoothing guide plate, the smoothing guide plate comprising a guide plate and an arc-shaped smoothing plate connected to each other, the arc-shaped smoothing plate being provided with an inwardly concave smoothing arc surface, and a connection between the surface of the guide plate and the smoothing arc surface being smoothly transitioned;

[0007] A translation steering mechanism is connected to the smoothing guide plate, and the translation steering mechanism can drive the arc-shaped smoothing plate of the smoothing guide plate to translate and flip relative to the winding needle of the winding machine.

[0008] In some embodiments: the translation steering mechanism drives the smoothing guide plate to switch back and forth between the smoothing station and the avoidance station;

[0009] When the smoothing guide plate needs to be restored to the smoothing position, the translation steering mechanism drives the smoothing arc surface of the smoothing guide plate to be coaxial with the winding needle and spaced from each other;

[0010] When the smoothing guide plate needs to be restored to the avoidance position, the translation steering mechanism drives the smoothing arc surface of the smoothing guide plate to flip in a direction away from the winding needle.

[0011] In some embodiments: the translation steering mechanism includes a linear motion mechanism that drives the smoothing guide plate to translate toward or away from the winding needle, and the linear motion mechanism is fixedly connected to an end of the guide plate away from the arc-shaped smoothing plate;

[0012] And, a rotating mechanism driving the smoothing guide plate to move toward or away from the winding needle to flip, the rotating mechanism being fixedly connected to an end of the guide plate away from the arc-shaped smoothing plate.

[0013] In some embodiments: the rotating mechanism is connected to the linear motion mechanism, the rotating mechanism is provided with a rotating shaft, the end of the guide plate away from the arc-shaped smoothing plate is provided with a mounting hole connected to the rotating shaft, and the rotating shaft is used to drive the smoothing guide plate to rotate.

[0014] In some embodiments: the linear motion mechanism includes a frame, on which is provided a linear slide rail slidably connected to the rotating mechanism, and an electric cylinder driving the rotating mechanism to reciprocate on the linear slide rail;

[0015] The rotating mechanism comprises a rotating shaft seat slidably connected to the linear slide rail, a rotating shaft for driving the smoothing guide plate to flip and a driving motor for driving the rotating shaft to rotate are rotatably connected to the rotating shaft seat.

[0016] In some embodiments: the mounting hole is an elongated hole extending axially along the rotating shaft, and the guide plate is connected to the rotating shaft through the elongated hole to axially adjust the axial distance between the smoothing guide plate and the winding needle.

[0017] In some embodiments: the guide plate and the arc-shaped smoothing plate are both plastic elastic sheets of set thickness and are integrally connected to each other.

[0018] In some embodiments, the arc angle of the arc-shaped smoothing plate is 90-180 degrees.

[0019] In some embodiments: the edges of the smoothing guide plate are all provided with chamfers or rounded corners.

[0020] In some embodiments: the guide plate is a flat plate, and the guide plate is tangent to the arc surface of the arc-shaped smoothing plate.

[0021] The beneficial effects of the technical solution provided by this application include:

[0022] An embodiment of the present application provides a pole lug smoothing mechanism for a winding machine. Since the pole lug smoothing mechanism of the present application is provided with a smoothing guide plate, the smoothing guide plate includes a guide plate and an arc-shaped smoothing plate that are connected to each other, the arc-shaped smoothing plate is provided with a concave smoothing arc surface, and the connection between the surface of the guide plate and the smoothing arc surface has a smooth transition; a translation steering mechanism, which is connected to the smoothing guide plate, and the translation steering mechanism can drive the arc-shaped smoothing plate of the smoothing guide plate to translate and flip relative to the winding needle of the winding machine.

[0023] Therefore, when the winding needle is winding the pole piece at high speed, the pole tab smoothing mechanism of the present application uses the arc-shaped smoothing plate portion of the smoothing guide plate to cover the outer periphery of the winding core and to be arranged at intervals, so that the pole tabs that generate centrifugal force are pressed against the smoothing arc surface of the arc-shaped smoothing plate. The smoothing arc surface applies force to the outer surface of the pole tab layer by layer, effectively reducing the folding and damage of the pole tab and improving the winding quality of the winding core.

[0024] In addition, the pole ear smoothing mechanism of the present application is provided with a translation steering mechanism for translating and flipping the smoothing guide plate, the translation steering mechanism is connected to the smoothing guide plate, and the translation steering mechanism can drive the arc-shaped smoothing plate of the smoothing guide plate to translate and flip relative to the winding needle of the winding machine. When the winding needle winds the pole piece at high speed, as the diameter of the winding core gradually increases, the translation steering mechanism drives the smoothing guide plate to translate in the direction away from the winding needle, so that the smoothing guide plate maintains a set distance with the winding core. When the winding of the winding core is completed, the translation steering mechanism drives the smoothing guide plate to flip in the direction away from the winding needle to facilitate the removal of the rolled winding core. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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 paying any creative work.

[0026] Figure 1 This is a structural front view of an embodiment of the present application;

[0027] Figure 2 A top view of the structure of an embodiment of the present application;

[0028] Figure 3 This is a schematic diagram of the structure of the smoothing guide plate according to an embodiment of the present application.

[0029] Reference numerals:

[0030] 10. Smoothing guide plate; 11. Guide plate; 12. Curved smoothing plate; 13. Smoothing the curved surface; 14. Mounting hole;

[0031] 20. Translation and steering mechanism; 21. Linear motion mechanism; 22. Rotation mechanism; 23. Frame; 24. Linear guide rail; 25. Electric cylinder; 26. Rotating shaft seat; 27. Rotating shaft; 28. Driving motor;

[0032] 30. Winding machine; 31. Winding needle; 40. Winding core; 41. Tab. DETAILED DESCRIPTION

[0033] 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.

[0034] The embodiment of the present application provides a tab smoothing mechanism for a winding machine, which can solve the problem in the related art that the tab is bent due to the influence of a large centrifugal force when the winding machine winds the pole piece at a high speed.

[0035] See also Figures 1 to 3 As shown, an embodiment of the present application provides a tab smoothing mechanism for a winding machine, comprising:

[0036] The smoothing guide plate 10 includes a guide plate 11 and an arc-shaped smoothing plate 12 connected to each other. The arc-shaped smoothing plate 12 is provided with an inwardly concave smoothing arc surface 13. The surface of the guide plate 11 and the smoothing arc surface 13 are smoothly transitioned at the connection. The guide plate 11 and the arc-shaped smoothing plate 12 are located on the peripheral side of the winding needle 31 of the winding machine 30. The arc-shaped smoothing plate 12 is used for the winding needle 31 to smooth the pole ear 41 on the winding core 40 when winding the pole piece, so as to prevent the pole ear 41 from being folded or broken under the action of a large centrifugal force when the winding needle 31 rotates too fast.

[0037] The translation steering mechanism 20 is connected to the smoothing guide plate 10, and the translation steering mechanism 20 can drive the arc-shaped smoothing plate 12 of the smoothing guide plate 10 to translate and flip relative to the winding needle 31 of the winding machine 30. When the winding needle 31 winds the pole piece and the diameter of the winding core 40 gradually increases, the translation steering mechanism 20 drives the smoothing guide plate 10 to translate in the direction away from the winding needle 31, so that the smoothing guide plate 10 and the winding core 40 maintain a set distance. When the winding of the winding core 40 is completed, the translation steering mechanism 20 drives the smoothing guide plate 10 to flip in the direction away from the winding needle 31, so as to facilitate the removal of the rolled winding core 40.

[0038] When the winding needle 31 winds the pole piece at high speed, the pole tab smoothing mechanism of the embodiment of the present application uses the arc-shaped smoothing plate 12 of the smoothing guide plate 10 to partially cover the outer periphery of the winding core 40 and to be arranged at intervals, so that the pole tab 41 generating the centrifugal force abuts against the smoothing arc surface 13 of the arc-shaped smoothing plate 12. The smoothing arc surface 13 applies force to the outer surface of the pole tab 41 layer by layer, effectively reducing the folding and damage of the pole tab 41 and improving the winding quality of the winding core 40.

[0039] In addition, the pole lug smoothing mechanism of the embodiment of the present application is provided with a translation steering mechanism 20 for translating and flipping the smoothing guide plate 10. The translation steering mechanism 20 is connected to the smoothing guide plate 10, and the translation steering mechanism 20 can drive the arc-shaped smoothing plate 12 of the smoothing guide plate 10 to translate and flip relative to the winding needle 31 of the winding machine 30. When the winding needle 31 winds the pole piece at high speed, as the diameter of the winding core 40 gradually increases, the translation steering mechanism 20 drives the smoothing guide plate 10 to translate in the direction away from the winding needle 31, so that the smoothing guide plate 10 and the winding core 40 always maintain a set distance. When the winding of the winding core 40 is completed, the translation steering mechanism 20 drives the smoothing guide plate 10 to flip in the direction away from the winding needle 31, so as to facilitate the removal of the rolled winding core 40.

[0040] In some alternative embodiments: See Figures 1 to 3 As shown, the embodiment of the present application provides a lug smoothing mechanism for a winding machine, and the translation steering mechanism 20 of the lug smoothing mechanism drives the smoothing guide plate 10 to switch back and forth between the smoothing station and the avoidance station. When the smoothing guide plate 10 needs to be restored to the smoothing station, the translation steering mechanism 20 drives the smoothing arc surface 13 of the smoothing guide plate 10 to be coaxial with the winding needle 31 and spaced from each other. When the smoothing guide plate 10 needs to be restored to the avoidance station, the translation steering mechanism 20 drives the smoothing arc surface 13 of the smoothing guide plate 10 to flip in a direction away from the winding needle 31.

[0041] The smoothing guide plate 10 of the embodiment of the present application has a smoothing station and an avoidance station. When the smoothing guide plate 10 is in the smoothing station, the translation steering mechanism 20 drives the smoothing arc surface 13 of the smoothing guide plate 10 to be coaxial with the winding needle 31 and spaced from each other, so that when the winding needle 31 winds the winding core 40 at a high speed, the smoothing guide plate 10 can provide bending resistance for the pole ear 41 on the winding core 40. When the winding of the winding core 40 is completed, the smoothing guide plate 10 needs to be in the avoidance station to facilitate the removal of the winding core 40 after the winding needle 31 is deformed or reduced in diameter to prevent interference in the position.

[0042] In some alternative embodiments: See Figures 1 to 3 As shown, an embodiment of the present application provides a pole ear smoothing mechanism for a winding machine, the translation and steering mechanism 20 of the pole ear smoothing mechanism includes a linear motion mechanism 21 for driving the smoothing guide plate 10 to translate toward or away from the winding needle 31, the linear motion mechanism 21 is fixedly connected to one end of the guide plate 11 away from the arc-shaped smoothing plate 12; and a rotating mechanism 22 for driving the smoothing guide plate 10 to flip toward or away from the winding needle 31, the rotating mechanism 22 is fixedly connected to one end of the guide plate 11 away from the arc-shaped smoothing plate 12.

[0043] The rotating mechanism 22 is connected to the linear motion mechanism 21, and the rotating mechanism 22 is provided with a rotating shaft 27. The end of the guide plate 11 away from the arc-shaped smoothing plate 12 is provided with a mounting hole 14 connected to the rotating shaft 27. The rotating shaft 27 is used to drive the smoothing guide plate 10 to rotate. Figure 1 As shown in the figure, when the arc-shaped smoothing plate 12 and the winding needle 31 are coaxially arranged, it is recorded as the initial state. When the rotating mechanism 22 drives the smoothing guide plate 10 to rotate clockwise to 90° through the rotating shaft 27, the guide plate 11 of the smoothing guide plate 10 is in a horizontal state. When the rotating mechanism 22 drives the smoothing guide plate 10 to rotate to 0° (such as Figure 1 The illustrated state is a state where the smoothing guide plate 10 is rotated to 0°, the guide plate 11 of the smoothing guide plate 10 is in a vertical state, and the arc-shaped smoothing plate 12 is located on the periphery of the winding needle 31 and is coaxially spaced from the winding needle 31.

[0044] Specifically, the linear motion mechanism 21 includes a frame 23, which is fixed on the winding machine 30, and is provided with a linear slide 24 slidably connected to the rotating mechanism 22, and an electric cylinder 25 driving the rotating mechanism 22 to reciprocate on the linear slide 24. The rotating mechanism 22 includes a rotating shaft seat 26 slidably connected to the linear slide 24, a rotating shaft 27 driving the smoothing guide plate 10 to flip is rotatably connected to the rotating shaft seat 26, and a driving motor 28 driving the rotating shaft 27 to rotate. The mounting hole 14 is an elongated hole extending axially along the rotating shaft 27, and the guide plate 11 is connected to the rotating shaft 27 through the elongated hole to axially adjust the axial spacing between the smoothing guide plate 10 and the winding needle 31 (the axial spacing is the distance between the smoothing guide plate 10 and the winding needle 31 in the axial direction of the rotating shaft 27).

[0045] In some alternative embodiments: See Figure 3 As shown, an embodiment of the present application provides a lug smoothing mechanism for a winding machine, wherein the guide plate 11 and the arc-shaped smoothing plate 12 of the lug smoothing mechanism are both plastic elastic sheets of set thickness and are integrally connected to each other. The arc angle of the arc-shaped smoothing plate 12 is 90-180 degrees, and the arc angle of the arc-shaped smoothing plate 12 can be set to 90°, 120°, 150° or 180°, so that the arc-shaped smoothing plate 12 can not only smooth the lug 41 but also facilitate the arc-shaped smoothing plate 12 to be separated from the winding core 40. The edges of the smoothing guide plate 10 are chamfered or rounded to prevent the burrs on the edges of the smoothing guide plate 10 from scratching the pole piece or diaphragm. The guide plate 11 is a flat plate, and the guide plate 11 is tangent to the arc surface of the arc-shaped smoothing plate 12, so that the guide plate 11 facilitates the introduction of the lug 41 into the arc-shaped smoothing plate 12 to smooth it.

[0046] How it works

[0047] An embodiment of the present application provides a lug smoothing mechanism for a winding machine. The lug smoothing mechanism of the present application is provided with a smoothing guide plate 10, which includes a guide plate 11 and an arc-shaped smoothing plate 12 connected to each other. The arc-shaped smoothing plate 12 is provided with a concave smoothing arc surface 13, and the connection between the surface of the guide plate 11 and the smoothing arc surface 13 has a smooth transition; a translation steering mechanism 20, which is connected to the smoothing guide plate 10, and the translation steering mechanism 20 can drive the arc-shaped smoothing plate 12 of the smoothing guide plate 10 to translate and flip relative to the winding needle 31 of the winding machine 30.

[0048] Therefore, when the winding needle 31 winds the pole piece at high speed, the pole tab smoothing mechanism of the present application uses the arc-shaped smoothing plate 12 of the smoothing guide plate 10 to partially cover the outer periphery of the winding core 40 and to be arranged at intervals, so that the pole tab 41 generating the centrifugal force abuts against the smoothing arc surface 13 of the arc-shaped smoothing plate 12. The smoothing arc surface 13 applies force to the outer surface of the pole tab 41 layer by layer, effectively reducing the folding and damage of the pole tab 41 and improving the winding quality of the winding core 40.

[0049] In addition, the pole lug smoothing mechanism of the present application is provided with a translation steering mechanism 20 for translating and flipping the smoothing guide plate 10. The translation steering mechanism 20 is connected to the smoothing guide plate 10, and the translation steering mechanism 20 can drive the arc-shaped smoothing plate 12 of the smoothing guide plate 10 to translate and flip relative to the winding needle 31 of the winding machine 30. When the winding needle 31 winds the pole piece at high speed, as the diameter of the winding core 40 gradually increases, the translation steering mechanism 20 drives the smoothing guide plate 10 to translate in the direction away from the winding needle 31, so that the smoothing guide plate 10 and the winding core 40 maintain a set distance. When the winding of the winding core 40 is completed, the translation steering mechanism 20 drives the smoothing guide plate 10 to flip in the direction away from the winding needle 31, so as to facilitate the removal of the rolled winding core 40.

[0050] 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.

[0051] 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.

[0052] 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 tab smoothing mechanism for a winding machine, characterized in that: include: A smoothing guide plate (10), the smoothing guide plate (10) comprising a guide plate (11) and an arc-shaped smoothing plate (12) connected to each other, the arc-shaped smoothing plate (12) being provided with an inwardly concave smoothing curved surface (13), and a connection between the surface of the guide plate (11) and the smoothing curved surface (13) being smoothly transitioned; A translation steering mechanism (20), the translation steering mechanism (20) is connected to the smoothing guide plate (10), and the translation steering mechanism (20) can drive the arc-shaped smoothing plate (12) of the smoothing guide plate (10) to translate and flip relative to the winding needle (31) of the winding machine (30).

2. A tab smoothing mechanism for a winding machine as claimed in claim 1, characterized in that: The translation steering mechanism (20) drives the smoothing guide plate (10) to switch back and forth between the smoothing station and the avoidance station; When the smoothing guide plate (10) needs to be restored to the smoothing position, the translation steering mechanism (20) drives the smoothing arc surface (13) of the smoothing guide plate (10) to be coaxial with the winding needle (31) and spaced apart from each other; When the smoothing guide plate (10) needs to be restored to the avoidance position, the translation steering mechanism (20) drives the smoothing arc surface (13) of the smoothing guide plate (10) to flip in a direction away from the winding needle (31).

3. A tab smoothing mechanism for a winding machine as claimed in claim 1 or 2, characterized in that: The translation steering mechanism (20) comprises a linear motion mechanism (21) for driving the smoothing guide plate (10) to translate toward or away from the winding needle (31), and the linear motion mechanism (21) is fixedly connected to an end of the guide plate (11) away from the arc-shaped smoothing plate (12); And, a rotating mechanism (22) drives the smoothing guide plate (10) to flip towards or away from the winding needle (31), and the rotating mechanism (22) is fixedly connected to an end of the guide plate (11) away from the arc-shaped smoothing plate (12).

4. A tab smoothing mechanism for a winding machine as claimed in claim 3, characterized in that: The rotating mechanism (22) is connected to the linear motion mechanism (21), and the rotating mechanism (22) is provided with a rotating shaft (27). An end of the guide plate (11) away from the arc-shaped smoothing plate (12) is provided with a mounting hole (14) connected to the rotating shaft (27), and the rotating shaft (27) is used to drive the smoothing guide plate (10) to rotate.

5. A tab smoothing mechanism for a winding machine as claimed in claim 3, characterized in that: The linear motion mechanism (21) comprises a frame (23), on which is provided a linear slide rail (24) slidably connected to the rotating mechanism (22), and an electric cylinder (25) driving the rotating mechanism (22) to reciprocate on the linear slide rail (24); The rotating mechanism (22) comprises a rotating shaft seat (26) slidably connected to the linear slide rail (24), a rotating shaft (27) rotatably connected to the rotating shaft seat (26) for driving the smoothing guide plate (10) to flip, and a driving motor (28) for driving the rotating shaft (27) to rotate.

6. A tab smoothing mechanism for a winding machine as claimed in claim 4, characterized in that: The mounting hole (14) is an elongated hole extending axially along the rotating shaft (27), and the guide plate (11) is connected to the rotating shaft (27) via the elongated hole to axially adjust the axial spacing between the smoothing guide plate (10) and the winding needle (31).

7. A tab smoothing mechanism for a winding machine as claimed in claim 1, characterized in that: The guide plate (11) and the arc-shaped smoothing plate (12) are both made of plastic elastic sheets of set thickness and are integrally connected to each other.

8. The tab smoothing mechanism for a winding machine according to claim 1, characterized in that: The arc angle of the arc-shaped smoothing plate (12) is 90-180 degrees.

9. A tab smoothing mechanism for a winding machine as claimed in claim 1, characterized in that: The edges of the smoothing guide plate (10) are all provided with chamfers or rounded corners.

10. The tab smoothing mechanism for a winding machine according to claim 1, characterized in that: The guide plate (11) is a flat plate, and the guide plate (11) is tangent to the arc surface of the arc-shaped smoothing plate (12).

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