Lithium battery coiled material straightening mechanism

Abstract

The utility model discloses a lithium battery coiled material straightening mechanism which comprises a mounting bottom plate, a first fixed roller assembly and a swing roller assembly, the first fixed roller assembly comprises a first mounting frame and a first fixed roller, the first mounting frame is arranged on the mounting bottom plate, the first fixed roller is connected with the first mounting frame, and the swing roller assembly is arranged on the mounting bottom plate. The swinging roller assembly comprises a swinging plate and a swinging roller, the swinging plate is connected with the first mounting frame, the swinging roller is connected with the swinging plate, and the swinging plate can drive the swinging roller to swing to different positions, so that the swinging roller can be located on the first side or the second side of the first fixed roller; and the lithium battery coiled material can sequentially penetrate through the first fixed roller pair and the swinging roller pair. According to the technical scheme, when lithium battery coiled materials in different winding directions are replaced, tape threading is not needed again, and the straightening function in different unwinding directions can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to a lithium battery coil straightening mechanism. Background Art

[0002] In the process of unwinding the lithium battery pole sheet, the lithium battery pole sheet coil needs to be corrected. In the prior art, if the lithium battery coil with different winding directions needs to be unwound, the lithium battery pole sheet coil or coil needs to be re-threaded in the straightening mechanism, and re-threading will not only waste a lot of time and reduce work efficiency, but also cause a lot of waste of lithium battery pole sheet materials and increase production and processing costs. Utility Model Content

[0003] The embodiment of the utility model provides a lithium battery coil straightening mechanism, which can realize the straightening function in different unwinding directions without the need for re-threading when replacing lithium battery coils with different winding directions.

[0004] The embodiment of the utility model provides a lithium battery coil straightening mechanism, which includes: a mounting base, a first fixed pair of rollers, and a swinging pair of rollers. The first fixed pair of rollers includes a first mounting frame and a first fixed pair of rollers, the first mounting frame is arranged on the mounting base, and the first fixed pair of rollers is connected to the first mounting frame. The swinging pair of rollers includes a swinging plate and a swinging pair of rollers, the swinging plate is connected to the first mounting frame, and the swinging pair of rollers is connected to the swinging plate, the swinging plate can drive the swinging pair of rollers to swing to different positions, so that the swinging pair of rollers can be located on the first side or the second side of the first fixed pair of rollers, and the lithium battery coil can pass through the first fixed pair of rollers and the swinging pair of rollers in sequence.

[0005] The technical solution of the utility model is to set up a first fixed pair of rollers and a swinging pair of rollers. The first fixed pair of rollers assembly includes a first fixed pair of rollers, and the swinging pair of rollers assembly includes a swinging plate and a swinging pair of rollers. The swinging plate drives the swinging pair of rollers to swing to different positions, so that the swinging pair of rollers can be located on the first side or the second side of the first fixed pair of rollers. When replacing the lithium battery coil with different winding directions, there is no need to re-thread the belt, and the straightening function in different unwinding directions can be achieved.

[0006] According to the aforementioned embodiment of the utility model, the coil straightening mechanism also includes: a lifting roller assembly. The lifting roller assembly includes a column, a driving unit, and a lifting roller. The column is arranged on the same side as the first mounting frame and vertically on the mounting base plate. The lifting roller is connected to the column and can move along the column under the drive of the driving unit. The lithium battery coil can pass through the lifting roller. The technical solution of the utility model is to set a lifting roller assembly, and the lifting roller assembly includes a column, a driving unit, and a lifting roller. The lifting roller is connected to the column and can move along the column under the drive of the driving unit. The lithium battery coil can pass through the lifting roller, so that the straightening effect can be consistent under different lithium battery coil unwinding diameters.

[0007] According to the aforementioned embodiment of the utility model, the coil straightening mechanism also includes: a coil diameter measuring sensor, which is electrically connected to the drive unit. When the unwinding coil diameter of the lithium battery coil gradually becomes smaller, the coil diameter measuring sensor sends a signal, the drive unit receives the signal, and the drive unit drives the lifting rollers to move along the column so that the recurve angle of the lithium battery coil gradually increases. The technical solution of the utility model is provided with a coil diameter measuring sensor, which is electrically connected to the drive unit. When the unwinding coil diameter gradually becomes smaller, the drive unit receives the signal sent by the coil diameter measuring sensor, and then the drive unit drives the lifting rollers to move along the column, and the lithium battery coil passes through the lifting rollers, thereby gradually increasing the recurve angle of the lithium battery coil, thereby achieving consistency of the straightening effect under different unwinding coil diameters of the lithium battery coil.

[0008] According to the aforementioned embodiment of the present utility model, the driving part is a driving electric cylinder.

[0009] According to the aforementioned embodiment of the utility model, the coil straightening mechanism also includes: a fixing member, which is detachably connected to the swing plate, and when the fixing member is connected to the swing plate, the fixing member can fix the swing roller to be located on the first side or the opposite second side of the first fixed roller. The technical solution of the utility model is provided with a fixing member, which can be detachably connected to the swing plate. When it is necessary to replace the lithium battery coil with a different winding direction, the swing plate is swung to drive the swing roller to swing, and the fixing member is connected to the swing plate, so that the swing roller can be located on the first side or the second side of the first fixed roller. When the winding direction of the lithium battery coil is changed, there is no need to re-thread the belt, and the straightening function in different unwinding directions can be achieved.

[0010] According to the aforementioned embodiment of the utility model, the swing pair of rollers includes: a first swing roller and a second swing roller, the opposite ends of the first swing roller and the second swing roller are respectively connected to the swing plate, a first gap is provided between the first swing roller and the second swing roller for the lithium battery coil to pass through, and the first swing roller and the second swing roller are arranged parallel to each other.

[0011] According to the aforementioned embodiment of the utility model, the first fixed pair of rollers assembly includes two oppositely arranged first mounting frames, and the opposite ends of the first fixed pair of rollers are respectively connected to the corresponding first mounting frames; the first mounting frame includes a first part and a second part connected to each other, the second part protrudes from the first part, and the swing plate is connected to the second part.

[0012] According to the aforementioned embodiment of the utility model, the first fixed pair of rollers includes: a first fixed roller and a second fixed roller, the opposite ends of the first fixed roller and the second fixed roller are respectively connected to the first mounting frame, a second gap is provided between the first fixed roller and the second fixed roller for the lithium battery coil to pass through, and the first fixed roller and the second fixed roller are arranged parallel to each other.

[0013] According to the aforementioned embodiment of the utility model, the coil straightening mechanism also includes: a second fixed pair of rollers assembly, the second fixed pair of rollers assembly and the first fixed pair of rollers assembly are respectively located on opposite sides of the mounting base plate, the second fixed pair of rollers assembly includes a second mounting frame and a second fixed pair of rollers, the second mounting frame is arranged on the mounting base plate, the second fixed pair of rollers is connected to the second mounting frame, and the lithium battery coil can pass through the first fixed pair of rollers, the swinging pair of rollers, and the second fixed pair of rollers in sequence.

[0014] According to the aforementioned embodiment of the utility model, the second fixed pair of rollers includes: a third fixed roller and a fourth fixed roller, a third gap is provided between the third fixed roller and the fourth fixed roller for the lithium battery coil to pass through, and the third fixed roller and the fourth fixed roller are arranged parallel to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a front view of an embodiment of a lithium battery coil straightening mechanism of the utility model;

[0017] Figure 2 It is a front view of an embodiment of the lithium battery coil straightening mechanism of the utility model in the counterclockwise rolled lithium battery coil unwinding state;

[0018] Figure 3 It is a front view of an embodiment of the lithium battery coil straightening mechanism of the utility model when the lithium battery coil that is rolled up clockwise is being unwound.

[0019] Description of Figure Numbers:

[0020] Installing base plate-100, first fixed roller assembly-200, swing roller assembly-300, lifting roller assembly-400, second fixed roller assembly-500, lithium battery coil-600;

[0021] The first mounting frame 210, the first fixed roller pair 220, the swing plate 310, the swing roller pair 320, the column 410, the driving part 420, the lifting roller pair 430, the second mounting frame 510, and the second fixed roller pair 520;

[0022] The first part 211, the second part 212, the first fixed roller 221, the second fixed roller 222, the swing shaft 311, the first swing roller 321, the second swing roller 322, the first lifting roller 431, the second lifting roller 432, the third fixed roller 521, the fourth fixed roller 522;

[0023] Vertical direction - Y1, horizontal direction - X1.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] The embodiment of the utility model provides a lithium battery coil straightening mechanism, which can realize the straightening function in different unwinding directions without re-threading when changing lithium battery coils with different winding directions. The lithium battery coil straightening mechanism in the utility model application can be applied to a series of equipment containing lithium battery coil unwinding, such as lithium battery lamination equipment, film making equipment, and die-cutting equipment.

[0029] like Figure 1 As shown, an embodiment of the utility model provides a lithium battery coil straightening mechanism. The coil straightening mechanism includes: a mounting base plate 100, a first fixed roller assembly 200, and a swing roller assembly 300. The first fixed roller assembly 200 includes a first mounting frame 210 and a first fixed roller 220. The first mounting frame 210 is disposed on the mounting base plate 100, and the first fixed roller 220 is connected to the first mounting frame 210. The swing roller assembly 300 includes a swing plate 310 and a swing roller 320. The swing plate 310 is connected to the first mounting frame 210, and the swing roller 320 is connected to the swing plate 310. Figure 2-3 As shown, the swing plate 310 can drive the swing pair of rollers 320 to swing to different positions along the swing axis 311, so that the swing pair of rollers 320 can be located on the first side or the second side of the first fixed pair of rollers 220, and the lithium battery coil 600 can pass through the first fixed pair of rollers 220 and the swing pair of rollers 320 in sequence.

[0030] The technical solution of the utility model is to set up a first fixed pair of rollers assembly 200 and a swinging pair of rollers 320 assembly 300, wherein the first fixed pair of rollers assembly 200 includes a first fixed pair of rollers 220, and the swinging pair of rollers 320 assembly 300 includes a swinging plate 310 and a swinging pair of rollers 320, wherein the swinging plate 310 drives the swinging pair of rollers 320 to swing to different positions, so that the swinging pair of rollers 320 can be located on the first side or the second side of the first fixed pair of rollers 220, and can realize the straightening function in different unwinding directions without re-threading the lithium battery coil 600 when replacing the lithium battery coil 600 with different winding directions.

[0031] In the embodiment of the utility model, the swing plate 310 can drive the swing roller 320 to swing 180° to the first side or the second side of the first fixed roller 220. In this state, the projection of the swing roller 320 in the vertical direction of the first fixed roller 220 falls into the plane where the first fixed roller 220 is located, and the swing roller 320 is arranged parallel to the first fixed roller 220 in the vertical direction Y1 perpendicular to the mounting base 100. In other embodiments, the swing plate 310 can also drive the swing roller 320 to swing to other angles so that the swing roller 320 is located on one side of the first fixed roller 220. The present application does not limit the angle at which the swing plate 310 drives the swing roller 320 to swing. Those skilled in the art can determine the angle at which the swing plate 310 drives the swing roller 320 to swing according to actual needs, so as to achieve a better straightening effect on the lithium battery coil 600 in different winding directions.

[0032] like Figure 1-3 As shown, the coil straightening mechanism also includes: a lifting roller assembly 400. The lifting roller assembly 400 includes a column 410, a driving unit 420, and a lifting roller 430. The column 410 is arranged on the same side as the first mounting frame 210 and is vertically arranged on the mounting base 100. The lifting roller 430 is connected to the column 410 and can move along the column 410 under the drive of the driving unit 420. The lithium battery coil 600 can pass through the lifting roller 430. The technical solution of the utility model is provided by setting a lifting roller 430 assembly 400, and the lifting roller 430 assembly 400 includes a column 410, a driving unit 420, and a lifting roller 430. The lifting roller 430 is connected to the column 410 and can move along the column 410 under the drive of the driving unit 420. The lithium battery coil 600 can pass through the lifting roller 430, and the consistency of the straightening effect under different unwinding diameters of the lithium battery coil 600 can be achieved. In the embodiment of the utility model, a slide rail is provided on the side of the column 410 facing the lifting roller 430 , and the lifting roller 430 is connected to the slide rail so that the lifting roller 430 can move along the column 410 .

[0033] In the embodiment of the utility model, the lifting roller 430 includes a first lifting roller 431 and a second lifting roller 432. The opposite ends of the first lifting roller 431 and the second lifting roller 432 are respectively installed on the lifting roller mounting seat. The lifting roller mounting seat is connected to the slider on the column 410. There is a fourth gap between the first lifting roller 431 and the second lifting roller 432 for the lithium battery coil 600 to pass through. The first lifting roller 431 and the second lifting roller 432 are arranged parallel to each other.

[0034] In the utility model application, the coil straightening mechanism also includes: a coil diameter measuring sensor, which is electrically connected to the drive unit 420. When the unwinding coil diameter of the lithium battery coil 600 gradually decreases, the coil diameter measuring sensor sends a signal, and the drive unit 420 receives the signal. The drive unit 420 drives the lifting roller 430 to move along the column 410 so that the recurvature angle of the lithium battery coil 600 gradually increases. The technical solution of the utility model is provided by setting a coil diameter measuring sensor, which is electrically connected to the drive unit 420. When the unwinding coil diameter gradually decreases, the drive unit 420 receives the signal sent by the coil diameter measuring sensor, and then the drive unit 420 drives the lifting roller 430 to move along the column 410, and the lithium battery coil 600 passes through the lifting roller 430, thereby gradually increasing the recurvature angle of the lithium battery coil 600, thereby achieving consistency of the straightening effect under different unwinding coil diameters of the lithium battery coil 600.

[0035] In the present utility model application, the driving part 420 is a driving electric cylinder, which is conducive to accurately controlling multiple strokes.

[0036] In the utility model application, the coil straightening mechanism also includes: a fixing member. The fixing member is detachably connected to the swing plate 310. When the fixing member is connected to the swing plate 310, the fixing member can fix the swing roller 320 to be located on the first side or the second side opposite to the first fixed roller 220. In the embodiment of the utility model, the fixing member is a dividing pin. The technical solution of the utility model is provided with a fixing member, and the fixing member can be detachably connected to the swing plate 310. When it is necessary to replace the lithium battery coil with different winding directions, in the embodiment of the utility model, it is necessary to manually swing the swing plate 310 and drive the swing roller 320 to swing, connect the fixing member to the swing plate 310, and fix the swing shaft 311 through the fixing member to fix the swing plate 310 and the swing roller 320, so as to prevent the swing plate 310 and the swing roller 320 from moving during the working process, so that the swing roller 320 can be located on the first side or the second side opposite to the first fixed roller 220, and it is possible to change the winding direction of the lithium battery coil without re-threading the belt, and the straightening function in different unwinding directions can be realized. In other embodiments, the swing plate 310 can also be electrically controlled to swing by the electrical control unit, and the electrical control unit is electrically connected to the swing plate 310. When it is necessary to replace the lithium battery coil with a different winding direction, the swing plate 310 is controlled by the electrical control unit to swing and drive the swing roller 320 to swing. After reaching the target position, the electrical control unit stops driving the swing plate 310 to swing, and locks the swing shaft 311 by electrical control to prevent the swing plate 310 and the swing roller 320 from moving during the working process. This application does not limit the method of controlling the swing plate 310 to swing and locking the swing shaft 311.

[0037] like Figure 1-3As shown, the swing roller pair 320 includes: a first swing roller 321 and a second swing roller 322, the opposite ends of the first swing roller 321 and the second swing roller 322 are respectively connected to the swing plate 310, and there is a first gap between the first swing roller 321 and the second swing roller 322 for the lithium battery coil 600 to pass through, and the first swing roller 321 and the second swing roller 322 are arranged parallel to each other.

[0038] like Figure 1 As shown, the first fixed roller assembly 200 includes two first mounting frames 210 arranged opposite to each other, and the opposite ends of the first fixed roller 220 are respectively connected to the corresponding first mounting frames 210. The first mounting frame 210 includes a first portion 211 and a second portion 212 connected to each other, the second portion 212 is arranged to protrude from the first portion 211, and the swing plate 310 is connected to the second portion 212. In the technical solution of the utility model, by protruding the second portion 212 from the first portion 211 along the horizontal direction X1 parallel to the extension direction of the mounting base 100, and the swing plate 310 is installed on the protruding second portion 212, it is possible to avoid mutual influence between the swing roller 320 and the first fixed roller 220 during the swinging process, so that the swing roller 320 can swing to the first side or the second side of the first fixed roller 220.

[0039] like Figure 1 As shown, the first fixed roller pair 220 includes: a first fixed roller 221 and a second fixed roller 222, and the opposite ends of the first fixed roller 221 and the second fixed roller 222 are respectively connected to the first mounting frame 210, as shown in FIG. Figure 2-3 As shown, there is a second gap between the first fixed roller 221 and the second fixed roller 222 for the lithium battery coil 600 to pass through, and the first fixed roller 221 and the second fixed roller 222 are arranged parallel to each other.

[0040] like Figure 1 As shown, the coil straightening mechanism also includes: a second fixed roller assembly 500, the second fixed roller assembly 500 and the first fixed roller assembly 200 are respectively located on opposite sides of the mounting base 100, the second fixed roller assembly 500 includes a second mounting frame 510 and a second fixed roller 520, the second mounting frame 510 is arranged on the mounting base 100, and the second fixed roller 520 is connected to the second mounting frame 510, as shown in FIG. Figure 2-3 As shown, the lithium battery coil 600 can pass through the first fixed pair of rollers 220 , the swinging pair of rollers 320 , and the second fixed pair of rollers 520 in sequence.

[0041] like Figure 1 As shown, the second fixed roller pair 520 includes: a third fixed roller 521 and a fourth fixed roller 522, as shown in FIG. Figure 2-3As shown, there is a third gap between the third fixed roller 521 and the fourth fixed roller 522 for the lithium battery coil 600 to pass through, and the third fixed roller 521 and the fourth fixed roller 522 are arranged parallel to each other.

[0042] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lithium battery coil straightening mechanism, characterized in that: The coil straightening mechanism comprises: Install the base plate; A first fixed pair of rollers assembly, the first fixed pair of rollers assembly comprising a first mounting frame and a first fixed pair of rollers, the first mounting frame being disposed on the mounting bottom plate, and the first fixed pair of rollers being connected to the first mounting frame; and A swinging pair of rollers assembly, the swinging pair of rollers assembly includes a swinging plate and a swinging pair of rollers, the swinging plate is connected to the first mounting frame, the swinging pair of rollers is connected to the swinging plate, the swinging plate can drive the swinging pair of rollers to swing to different positions, so that the swinging pair of rollers can be located on the first side or the second side of the first fixed pair of rollers, and the lithium battery coil can pass through the first fixed pair of rollers and the swinging pair of rollers in sequence.

2. The lithium battery coil straightening mechanism according to claim 1, characterized in that: The coil straightening mechanism also includes: A lifting roller assembly includes a column, a driving unit, and a lifting roller. The column is on the same side as the first mounting frame and is vertically arranged on the mounting base. The lifting roller is connected to the column and can move along the column under the drive of the driving unit. The lithium battery coil can pass through the lifting roller.

3. The lithium battery coil straightening mechanism according to claim 2, characterized in that: The coil straightening mechanism also includes: The coil diameter measuring sensor is electrically connected to the driving unit. When the unwinding diameter of the lithium battery coil gradually decreases, the coil diameter measuring sensor sends a signal, and the driving unit receives the signal. The driving unit drives the lifting rollers to move along the column so that the inflection angle of the lithium battery coil gradually increases.

4. The lithium battery coil straightening mechanism according to claim 2, characterized in that: The driving part is a driving electric cylinder.

5. The lithium battery coil straightening mechanism according to claim 1, characterized in that: The swing roller assembly also includes: A fixing member is detachably connected to the swing plate, and when the fixing member is connected to the swing plate, the fixing member can fix the swing pair of rollers to be located on the first side or the opposite second side of the first fixed pair of rollers.

6. The lithium battery coil straightening mechanism according to claim 1, characterized in that: The swing roller pair comprises: A first swing roller and a second swing roller, wherein the opposite ends of the first swing roller and the second swing roller are respectively connected to the swing plate, a first gap is provided between the first swing roller and the second swing roller for the lithium battery coil to pass through, and the first swing roller and the second swing roller are arranged parallel to each other.

7. The lithium battery coil straightening mechanism according to claim 1, characterized in that: The first fixed roller assembly comprises two first mounting frames arranged opposite to each other, and opposite ends of the first fixed roller are respectively connected to corresponding first mounting frames; The first mounting frame includes a first part and a second part connected to each other, the second part is arranged to protrude from the first part, and the swing plate is connected to the second part.

8. The lithium battery coil straightening mechanism according to claim 7, characterized in that: The first fixed pair of rollers comprises: A first fixed roller and a second fixed roller, wherein the opposite ends of the first fixed roller and the second fixed roller are respectively connected to the first mounting frame, a second gap is provided between the first fixed roller and the second fixed roller for the lithium battery coil to pass through, and the first fixed roller and the second fixed roller are arranged parallel to each other.

9. The lithium battery coil straightening mechanism according to claim 1, characterized in that: The coil straightening mechanism also includes: A second fixed pair of rollers assembly, the second fixed pair of rollers assembly and the first fixed pair of rollers assembly are respectively located on opposite sides of the mounting base plate, the second fixed pair of rollers assembly comprises a second mounting frame and a second fixed pair of rollers, the second mounting frame is arranged on the mounting base plate, the second fixed pair of rollers is connected to the second mounting frame, and the lithium battery coil can pass through the first fixed pair of rollers, the swinging pair of rollers, and the second fixed pair of rollers in sequence.

10. The lithium battery coil straightening mechanism according to claim 9, characterized in that: The second pair of fixed rollers includes: a third fixed roller and a fourth fixed roller, a third gap is defined between the third fixed roller and the fourth fixed roller for the lithium battery coil to pass through, and the third fixed roller and the fourth fixed roller are disposed parallel to each other.

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