Double-roll tab conveying device

Abstract

The utility model discloses a double-roll tab transmission device, which comprises a roller group for transmitting a pole piece, a conveyor belt for supporting tabs is wound on the roller group, the roller group comprises a first end part roller, a second end part roller and N middle rollers arranged between the first end part roller and the second end part roller, according to the utility model, the conveyor belt is arranged between the transmission roller groups, and the conveyor belt is used for supporting the pole piece and the pole lug, so that the problem that the pole lug collapses due to the fact that the pole piece is in a suspended state for a long distance between adjacent passing rollers is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery pole piece winding equipment technical field, specifically a kind of double winding lug transmission device. BACKGROUND

[0002] In the process of power lithium battery, the lug foil area is a very fragile part, which is easily damaged by external factors during winding and walking, and the state of the lug foil plays a key role in the conductivity and safety of lithium-ion batteries.

[0003] The current new double winding core winding technology is in the initial stage in the lithium battery industry, and winding is an important part of the double winding core development process. During the walking process, the overlong connecting lug can cause walking suspension collapse, which increases the probability of foil wrinkles and damage during the winding process of the pole piece, resulting in defective battery cells. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a double winding lug transmission device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A double winding lug transmission device includes a roller set for transmitting a pole piece, a conveyor belt for supporting a lug is wound on the roller set, and the roller set includes a first end roller, a second end roller, and N intermediate rollers arranged between the first end roller and the second end roller, N≥0 and N is a natural number.

[0007] By setting a conveyor belt between the rollers, the conveyor belt can support the lug between adjacent rollers when the pole piece is transported on the rollers, preventing the lug from hanging long distances between the rollers and avoiding the problem of lug collapse caused by hanging.

[0008] As a further scheme of the utility model, the number of intermediate rollers is zero, i.e. N=0, the first end roller and the second end roller are wound with a conveyor belt, and the contact position of the conveyor belt with the first end roller and the second end roller is located in the axial middle part of the first end roller and the second end roller.

[0009] There is no intermediate roller between the two end rollers, and the conveyor belt is directly wound between the two end rollers to support the lug.

[0010] As a further scheme of the utility model, there is one intermediate roller, i.e. N=1, the first end roller and the intermediate roller, and the second end roller and the intermediate roller are wound with a conveyor belt, and the conveyor belt is wound in the axial middle part of the first end roller, the second end roller and the intermediate roller.

[0011] The intermediate roller is arranged between the two end rollers, and the transmission belt is wound around the intermediate roller and the two end rollers, thereby supporting the tab of the transmission electrode.

[0012] As a further scheme of the present application, the intermediate roller is provided with a plurality of rollers, i.e., N≥2, the first end roller and the intermediate roller adjacent to the first end roller, the second end roller and the intermediate roller adjacent to the second end roller, and the transmission belt is wound around the adjacent intermediate rollers, and the transmission belt is wound around the axial middle part of the first end roller, the second end roller and the intermediate roller.

[0013] When a plurality of intermediate rollers are arranged between the two end rollers, the transmission belt is also wound around the adjacent intermediate rollers to ensure that the transmission belt supports the tab of the electrode during the entire transmission process.

[0014] As a further scheme of the present application, the intermediate roller comprises a roller shaft, a roller shaft sleeve is sleeved on the roller shaft, and a plurality of transmission belt driving grooves for winding the transmission belt are formed in the middle part of the roller shaft sleeve.

[0015] Teeth are arranged on the transmission belt driving grooves, and the inner ring of the transmission belt is also provided with teeth meshing with the teeth on the roller to ensure that the linear speed of the outer edge of the roller shaft is consistent with the speed of the transmission belt.

[0016] As a further scheme of the present application, the roller shaft is rotatably connected with a roller support assembly at one end, and the roller shaft is fixedly connected with the roller shaft through a fixing buckle.

[0017] The roller support assembly provides support for the roller.

[0018] As a further scheme of the present application, the first end roller, the second end roller and the intermediate roller have the same structure, and at least one transmission belt driving groove for winding the transmission belt is arranged on the first end roller and the second end roller.

[0019] The structure of the end roller and the intermediate roller, and the number of the transmission belt driving grooves on the roller are arranged according to the needs, and the remaining structures are consistent, so they can be mutually used, thereby reducing the use cost.

[0020] As a further scheme of the present application, at least one adjusting roller for tensioning the transmission belt is arranged on one side of the transmission belt.

[0021] The adjusting roller can adjust the tightness of the transmission belt, thereby facilitating the effective support of the tab of the multi-electrode.

[0022] As a further scheme of the present utility model: the adjusting roller includes adjusting roller support assembly and the adjusting roller support assembly rotationally connected adjusting roller shaft, the adjusting roller shaft is fixedly sleeved with adjusting roller shaft sleeve, at least one conveying belt guide groove for clamping the conveying belt is arranged on the adjusting roller shaft sleeve.

[0023] The adjusting roller is effectively supported by the adjusting roller support assembly, and the conveying belt guide groove is arranged to ensure that the position of the conveying belt does not deviate during operation.

[0024] As a further scheme of the present utility model: the conveying belt is parallelly provided with a plurality of.

[0025] A plurality of conveying belts can be arranged as required to provide more effective support for the tabs.

[0026] Compared with the prior art, the present utility model has the beneficial effects that: the present utility model sets the conveying belt between the transmission roller groups, and provides support for the tabs of the pole piece through the conveying belt, effectively avoiding the occurrence of the tab collapse problem of the pole piece due to the long-distance suspension state between adjacent over rollers. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a front view of the transmission device of the present embodiment;

[0028] Figure 2 It is an axial side view of the transmission device of the present embodiment;

[0029] Figure 3 It is a partial structure schematic view of the transmission device of the present embodiment;

[0030] Figure 4 It is an over roller structure schematic view of the present embodiment;

[0031] Figure 5 It is an adjusting roller structure schematic view of the present embodiment;

[0032] Figure 6 It is a top view of the transmission device of the present embodiment;

[0033] Figure 7 It is a top view of the transmission device of the present embodiment in working state;

[0034] Figure 8 It is a pole piece structure schematic view of the present embodiment;

[0035] In the figure:

[0036] 1-first end over roller, 2-adjusting roller, 21-adjusting roller sleeve, 22-adjusting roller shaft, 23-adjusting roller support assembly, 24-conveying belt guide slot, 3-conveying belt, 4-intermediate over roller, 41-over roller sleeve, 42-over roller support assembly, 43-over roller shaft, 44-fixing buckle, 45-conveying belt driving slot, 5-second end over roller, 6-pole piece, 61-first pole piece assembly, 62-second pole piece assembly, 63-tab. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] Embodiment 1

[0039] Please refer to Figure 5 , Figure 8 In the embodiments of the present application, a double-tab conveying device includes an over roller set for conveying pole pieces, and a conveying belt 3 is wound around the over roller set for supporting tabs.

[0040] The over roller set includes a first end over roller 1, a second end over roller 5, and N intermediate over rollers 4 arranged between the first end over roller 1 and the second end over roller 5, where N≥0 and N is a natural number. In this embodiment, the number of intermediate over rollers 4 is zero, i.e. N=0. The conveying belt 3 is wound around the first end over roller 1 and the second end over roller 5. The conveying belt 3 has one root, and the contact position of the conveying belt 3 with the first end over roller 1 and the second end over roller 5 is located at the axial middle part of the first end over roller 1 and the second end over roller 5. The conveying belt driving slot 45 is arranged at the axial middle part of the first end over roller 1 and the second end over roller 5. The conveying belt driving slot 45 is provided with teeth, and the inner ring of the conveying belt 3 is also provided with teeth meshing with the teeth on the over roller, so as to ensure that the linear speed of the outer edge of the over roller shaft is consistent with the speed of the conveying belt 3.

[0041] At least one adjusting roller 2 for tensioning the conveying belt 3 is arranged on one side of the conveying belt 3. The adjusting roller 2 includes an adjusting roller support assembly 23 and an adjusting roller shaft 22 rotationally connected with the adjusting roller support assembly 23. The adjusting roller shaft 22 is fixedly sleeved with an adjusting roller sleeve 21, and the adjusting roller sleeve 21 is provided with at least one conveying belt guide slot 24 for clamping the conveying belt.

[0042] The pole piece 6 includes a first pole piece assembly 61, a second pole piece assembly 62, and a tab 63 arranged between the first pole piece assembly 61 and the second pole piece assembly 62.

[0043] The utility model discloses when using, pole piece 6 passes through first end portion roller 1, second end portion roller 5 and then transmission, and the transmission belt 3 is wound between first end portion roller 1, second end portion roller 5, when pole piece 6 is in the middle of first end portion roller 1, second end portion roller 5 in the process of conveying, because, there is a certain distance between first end portion roller 1, second end portion roller 5, so pole piece 6 is in the state of suspension at this time, simultaneously, because being provided with the transmission belt 3, so the pole lug 63 is put on the transmission belt 3, and the transmission belt 3 provides support for the pole lug 63, simultaneously, because first end portion roller 1, second end portion roller 5 and the transmission belt 3 are connected through gear, so the linear velocity of the edge of first end portion roller 1, second end portion roller 5 is opposite to the speed of the transmission belt 3, that is, the transmission belt 3 will not produce relative motion relative to pole piece 6, so will not cause damage to pole piece because of relative motion.

[0044] Embodiment 2

[0045] In the utility model embodiment, the transmission belt 3 is provided with two, and the two transmission belts 3 are arranged in parallel, and the remaining structures are same with embodiment 1.

[0046] Embodiment 3

[0047] Please refer to Figures 1-8 In the utility model embodiment, a double-coil pole lug transmission device includes a roller set for transmitting pole pieces, a transmission belt 3 for supporting pole lugs is wound on the roller set,

[0048] The roller set includes a first end portion roller 1, a second end portion roller 5 and N intermediate rollers 4 arranged between the first end portion roller 1 and the second end portion roller 5, and N is a natural number greater than or equal to 0. In this embodiment, the intermediate roller 4 is provided with one, that is, N = 1, and the transmission belt 3 is wound on the first end portion roller 1, the intermediate roller 4 and the second end portion roller 5. The contact position of the transmission belt 3 with the first end portion roller 1, the second end portion roller 5 and the intermediate roller 4 is located at the middle of the first end portion roller 1 and the second end portion roller 5 in the axial direction.

[0049] The intermediate roller 4 includes a roller shaft 43, a roller shaft sleeve 41 is sleeved on the roller shaft 43, a roller support assembly 42 is rotatably connected to one end of the roller shaft 43, the roller shaft 43 is fixedly connected to the roller shaft 43 through a fixed buckle 44, a plurality of transmission belt driving grooves 45 for winding the transmission belt 3 are formed in the middle of the roller shaft sleeve 41, teeth are arranged on the transmission belt driving grooves 45, and the inner ring of the transmission belt 3 is also arranged with teeth meshing with the teeth on the roller to ensure that the linear speed of the outer edge of the roller shaft is consistent with the speed of the transmission belt 3.

[0050] The first end portion roller 1 and the second end portion roller 5 have the same structure as the intermediate roller 4, and at least one transmission belt driving groove 45 for winding the transmission belt 3 is arranged on the first end portion roller 1 and the second end portion roller 5.

[0051] The conveying belt 3 is provided with at least one adjusting roller 2 for tensioning the conveying belt 3, the adjusting roller 2 comprises an adjusting roller support assembly 23 and an adjusting roller shaft 22 rotationally connected with the adjusting roller support assembly 23, an adjusting roller shaft sleeve 21 is fixedly sleeved on the adjusting roller shaft 22, and at least one conveying belt guide groove 24 for clamping the conveying belt is arranged on the adjusting roller shaft sleeve 21.

[0052] In the embodiment, one intermediate roller 4 is arranged, two conveying belts 3 are arranged between the first end roller 1 and the intermediate roller 4, and one conveying belt 3 is arranged between the intermediate roller 4 and the second end roller 5.

[0053] The working process of the embodiment is similar to that of the embodiment 1.

[0054] Embodiment 4

[0055] In the embodiment, the intermediate roller 4 is provided with multiple intermediate rollers, that is, N≥2, the first end roller 1 and the intermediate roller 4 adjacent to the first end roller 1, the second end roller 5 and the intermediate roller 4 adjacent to the second end roller, and the intermediate roller 4 are all sleeved with the conveying belt 3.

[0056] In the embodiment, the roller shaft sleeve and the adjusting roller shaft sleeve are made of T300 carbon fiber material, which is light in weight and high in process strength, and is suitable for light and high load environment; the conveying belt 3 is made of PVC material, and a film coating process is added to the outer surface to ensure that the belt running process will not generate friction and static electricity on the pole ear.

[0057] The remaining structure and use process are similar to those of the embodiment 3.

[0058] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0059] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-roller electrode conveying device, comprising a roller group for conveying electrode sheets, characterized in that, The roller group is wound with a conveyor belt (3) for supporting the electrode tabs. The roller group includes a first end roller (1), a second end roller (5), and N intermediate rollers (4) disposed between the first end roller (1) and the second end roller (5), where N≥0 and N is a natural number. The number of intermediate rollers (4) is zero, i.e. N = 0. A conveyor belt (3) is wound around the first end roller (1) and the second end roller (5). The contact position between the conveyor belt (3) and the first end roller (1) and the second end roller (5) is located in the middle of the axial direction of the first end roller (1) and the second end roller (5). Alternatively, the intermediate roller (4) may be provided, i.e., N=1. Conveyor belts (3) are wound around the first end roller (1), the intermediate roller (4), the second end roller (5), and the intermediate roller (4). The conveyor belts (3) are wound around the axial middle of the first end roller (1), the second end roller (5), and the intermediate roller (4). Alternatively, there may be multiple intermediate rollers (4), i.e., N≥2. A conveyor belt (3) is wound around the intermediate roller (4) adjacent to the first end roller (1), the intermediate roller (4) adjacent to the second end roller (5), and the adjacent intermediate roller (4). The conveyor belt (3) is wound around the axial middle of the first end roller (1), the second end roller (5), and the intermediate roller (4).

2. The dual-coil electrode transmission device according to claim 1, characterized in that, The intermediate roller (4) includes a roller shaft (43), on which a roller sleeve (41) is fitted. The roller sleeve (41) has a plurality of conveyor belt drive grooves (45) for winding the conveyor belt (3) in the middle.

3. The dual-coil electrode transmission device according to claim 2, characterized in that, One end of the roller shaft (43) is rotatably connected to the roller support assembly (42), and the roller shaft (43) is fixedly connected to the roller shaft (43) by a fixing buckle (44).

4. The dual-coil electrode transmission device according to claim 2, characterized in that, The first end roller (1) and the second end roller (5) have the same structure as the intermediate roller (4), and the first end roller (1) and the second end roller (5) are provided with at least one conveyor belt drive groove (45) for winding the conveyor belt (3).

5. A dual-coil electrode transmission device according to claim 1, characterized in that, At least one adjusting roller (2) for tensioning the conveyor belt (3) is provided on one side of the conveyor belt (3).

6. A dual-coil electrode transmission device according to claim 5, characterized in that, The adjusting roller (2) includes an adjusting roller support assembly (23) and an adjusting roller shaft (22) rotatably connected to the adjusting roller support assembly (23). An adjusting roller shaft sleeve (21) is fixedly sleeved on the adjusting roller shaft (22), and at least one conveyor belt guide groove (24) for engaging the conveyor belt (3) is provided on the adjusting roller shaft (22).

7. A dual-coil electrode transmission device according to claim 3, characterized in that, The conveyor belts (3) are arranged in parallel in multiple ways.

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