Gluing device and gluing method for cylindrical battery pole piece

Abstract

According to the rubberizing device and rubberizing method for the cylindrical battery pole piece, a traction piece can drive the cylindrical battery pole piece to move, a plurality of tabs are welded to the pole piece and are arranged at intervals, the positions, where the tabs are welded, of the pole piece are rubberizing positions, and turning plates are located on the two sides of the rubberizing positions of the pole piece; the flat attaching plates are located on the two sides of the adhesive tape attaching position of the pole piece and located above the turning plate, when the adhesive tape attaching position of the pole piece is opposite to the turning plate and / or the flat attaching plates, the traction piece stops running, and the turning plate can grab the adhesive tape and turn over in the direction close to the pole piece so that one side of the adhesive tape can be attached to the adhesive tape attaching position of the pole piece; and the flat pasting plate can move towards the direction close to the pole piece and tightly press the gummed paper to enable the other side of the gummed paper to be attached to the adhesive pasting position of the pole piece. According to the invention, rubberizing under the static state of the pole piece is realized, the pole piece does not need to drive a rubber roller for roller pasting, the scrap of the pole piece is reduced, the product percent of pass is improved, the flat pasting plate is simple in structure and easy to maintain and debug, and the production efficiency is improved.

Description

[Technical field]

[0001] The present invention relates to the technical field of batteries, and in particular to a gluing device and a gluing method for cylindrical battery pole pieces. [Background technology]

[0002] With the development of the lithium battery industry, the quality and efficiency of the production and winding of battery cells are increasingly required. The pole pieces of lithium batteries need to be glued at the welding ear positions. At present, the glue sticking method in the lithium battery production and winding process has been changed from the traditional suction cup type to the more efficient roller sticking type. The roller sticking type is to set rubber rollers on both sides of the pole piece. After the adhesive paper is loaded, the rubber roller is driven by the pole piece to squeeze the adhesive paper during the operation of the pole piece so that the adhesive paper roller is attached to the pole piece. However, during long-term operation, the rubber rollers are prone to deformation and wear during the high-frequency extrusion process, resulting in the two rubber rollers not being able to fully fit together during gluing, causing wrinkles in the glue, failure to gluing, etc., resulting in poor gluing and broken glue. The defective ratio is seriously exceeded, reducing the product qualification rate. During the gluing process of the pole piece, the two small bearings inside the rubber rollers are easily stuck and damaged, causing the roller to be unable to rotate. The adhesive tape cannot be rolled onto the pole piece during gluing, resulting in abnormal gluing. In addition, the maintenance is labor-intensive and difficult to adjust the parallelism and fit of the two rubber rollers after abnormal gluing, which prolongs the maintenance time and affects the efficiency.

[0003] In view of this, it is necessary to provide a new cylindrical battery pole piece gluing device and method to overcome the above-mentioned defects. [Summary of the invention]

[0004] The object of the present invention is to provide a gluing device and a gluing method for cylindrical battery pole pieces to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the present invention provides a gluing device for a cylindrical battery electrode, comprising a traction member, a flap, and a flat pasting plate; the traction member is used to drive the movement of the cylindrical battery electrode, the electrode is welded with a plurality of pole ears and the plurality of pole ears are arranged at intervals, and the position where the pole ears are welded to the electrode is the gluing position; the flap is located on both sides of the gluing position of the electrode, the flat pasting plate is located on both sides of the gluing position of the electrode and the flat pasting plate is located above the flap; when the gluing position of the electrode is opposite to the position of the flap and / or the flat pasting plate, the traction member stops running, the flap is used to grab the adhesive tape and flip it in a direction close to the electrode to attach one side of the adhesive tape to the gluing position of the electrode, and the flat pasting plate is used to move in a direction close to the electrode and press the adhesive tape so that the other side of the adhesive tape is attached to the gluing position of the electrode.

[0006] In a preferred embodiment, the flap includes a first flap and a second flap, and the first flap and the second flap are arranged in a mirror image along the pole piece; the flat plate includes a first flat plate and a second flat plate, and the first flat plate and the second flat plate are arranged in a mirror image along the pole piece.

[0007] In a preferred embodiment, the first flap and the second flap are both connected to a first driving member, and the first driving member is used to drive the first flap and the second flap to flip in a direction close to or away from the pole piece to attach or grab the adhesive tape; the first flat plate and the second flat plate are both connected to a second driving member, and the second driving member is used to drive the first flat plate and the second flat plate to move in a direction close to or away from the pole piece.

[0008] In a preferred embodiment, the traction member includes a first roller and a second roller located below the first roller, the pole piece includes a first surface and a second surface opposite to the first surface, the pole piece parallel to the horizontal plane is bent downward to form a first bending zone and the first surface of the first bending zone abuts against the first roller, and the pole piece perpendicular to the horizontal plane is bent upward to form a second bending zone and the second surface of the second bending zone abuts against the second roller.

[0009] In a preferred embodiment, the flat plate includes a supporting portion and connecting portions located at both ends of the supporting portion, the connecting portion is provided with a through hole, the surface of the supporting portion close to the pole piece is a slope, and the inclination angle of the slope is 45 degrees; the area of ​​the flat plate pressing the adhesive tape accounts for one third of the total area of ​​the adhesive tape.

[0010] In a preferred embodiment, a rotating shaft is provided at one end of the flap, and a tape grabbing portion is sleeved on the rotating shaft.

[0011] In a preferred embodiment, it further comprises an optical fiber sensor, which is arranged near the pole piece and is used to sense the pole lug on the pole piece.

[0012] In a second aspect, the present invention further provides a method for gluing a cylindrical battery electrode sheet using a gluing device according to any one of the embodiments of the first aspect, the method comprising the following steps:

[0013] The pole piece is welded to the pole ear by an ultrasonic welding machine and then pulled to the glue sticking station by a pulling member;

[0014] When the gluing position of the pole piece is opposite to the position of the flap and / or the flat plate, the traction member is controlled to stop running;

[0015] The driving flap grabs the adhesive tape and flips it toward the direction close to the pole piece so that one side of the adhesive tape is attached to the adhesive sticking position of the pole piece;

[0016] The flat pasting plate is driven to move toward the direction close to the pole piece and press the adhesive tape so that the other side of the adhesive tape is attached to the adhesive pasting position of the pole piece.

[0017] In a preferred embodiment, after the step of driving the flat plate to move toward the pole piece and pressing the adhesive tape so that the other side of the adhesive tape is attached to the adhesive attachment position of the pole piece, the method includes:

[0018] The driving flap is turned back to its original position away from the pole piece and continues to grab the adhesive tape;

[0019] driving the flat plate to move in a direction away from the pole piece to release the pole piece;

[0020] The control traction member continues to drive the pole piece to operate.

[0021] In a preferred embodiment, after the electrode piece is welded to the electrode ear by an ultrasonic welding machine and then pulled to the glue sticking station by a pulling member, the following steps are included:

[0022] After the optical fiber sensor at the gluing station senses the pole ear, it controls the traction member to drive the pole piece to run a preset length so that the gluing position of the pole piece is opposite to the position of the flap and / or flat plate.

[0023] Compared with the prior art, the gluing device and method for cylindrical battery pole pieces provided by the present invention are characterized in that the traction member can drive the pole piece of the cylindrical battery to move, the pole piece is welded with a plurality of pole ears and the plurality of pole ears are arranged at intervals, the position where the pole ears are welded to the pole piece is the gluing position, the flap is located on both sides of the gluing position of the pole piece, the flat pasting plate is located on both sides of the gluing position of the pole piece and the flat pasting plate is located above the flap, when the gluing position of the pole piece is relative to the position of the flap and / or the flat pasting plate, the traction member stops running, the flap can grab the adhesive tape and flip one side of the adhesive tape in the direction close to the pole piece Attached to the gluing position of the electrode, the flat pasting plate can move toward the direction close to the electrode and press the adhesive tape so that the other side of the adhesive tape is attached to the gluing position of the electrode. Such a design realizes gluing when the electrode is stationary, and there is no need for the electrode to drive the adhesive roller for roller pasting. This overcomes the defect of a large proportion of poor gluing caused by the instability of the adhesive roller structure in the existing roller pasting method, reduces the scrapping of the electrode, and improves the product qualification rate. The flat pasting plate has a simple structure, and the processing of accessories is simple and cheap, which reduces the cost of spare parts in the later stage. The maintenance and debugging are simple, the maintenance time is reduced, and the production efficiency is improved.

Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a structural diagram of the gluing device for cylindrical battery pole pieces provided by the present invention.

[0026] Figure 2 Another structural diagram of the gluing device for cylindrical battery pole pieces provided by the present invention.

[0027] Figure 3 for Figure 2 The exploded structural diagram of the gluing device for the cylindrical battery electrode is shown.

[0028] Figure 4 This is a structural diagram of the flip plate and the flat pasting plate in the gluing device for cylindrical battery pole pieces provided by the present invention.

[0029] Figure 5 The present invention is a flowchart of the method for gluing cylindrical battery pole pieces provided by the present invention. [Specific implementation method]

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0031] See also Figure 1 , which is a structural diagram of the gluing device for cylindrical battery pole pieces provided by the present invention. The gluing device provided by the present invention can reduce the proportion of poor gluing during the film winding process, reduce the frequency of pole piece breakage caused by abnormal gluing during the film winding process, save the maintenance time of abnormal gluing of the film winding machine, and save the cost of replacing spare parts of the film winding machine in the later stage.

[0032] Please also read Figure 2 and Figure 3 The gluing device 100 for cylindrical battery pole pieces provided by the present invention comprises a traction member 10, a flap 20, and a flat gluing plate 30. The traction member 10 is used to drive the pole piece 200 of the cylindrical battery to move. The pole piece 200 is welded with a plurality of pole tabs 201 and the plurality of pole tabs are arranged at intervals. The position where the pole tabs 201 are welded on the pole piece 200 is the gluing position 202. It can be understood that after the pole piece is welded with the pole tabs, welding burrs will appear at the position where the pole tabs are welded. Therefore, it is necessary to glue at the position where the pole tabs are welded to prevent the welding burrs from piercing the diaphragm during the subsequent winding process.

[0033] The flap 20 is located on both sides of the gluing position of the pole piece 200, and the flat plate 30 is located on both sides of the gluing position of the pole piece 200 and the flat plate 30 is located above the flap 20. Specifically, when the gluing position 202 of the pole piece 200 is opposite to the flap and / or the flat plate, the traction member 10 stops running, that is, the pole piece 200 is stationary, the flap 20 is used to grab the adhesive tape 101 and flip it in the direction close to the pole piece 200 to attach one side of the adhesive tape 101 to the gluing position 202 of the pole piece 200, and the flat plate 30 is used to move in the direction close to the pole piece 200 and press the adhesive tape to attach the other side of the adhesive tape 101 to the gluing position 202 of the pole piece.

[0034] It can be understood that by arranging a flat pasting plate 30 above the flap 20, when gluing is being performed, the electrode is in a stationary state, the flap 20 can attach one side of the adhesive tape to the electrode 200, and the flat pasting plate 30 can then attach the other side of the adhesive tape to the electrode 200. After the gluing is completed, the electrode continues to run. With this design, there is no need for the electrode to drive the rubber roller for roller pasting, which overcomes the defect of a large proportion of poor gluing caused by the instability of the rubber roller structure in the existing roller pasting type, reduces the scrapping of the electrode, and improves the product qualification rate. The flat pasting plate has a simple structure, and the processing of accessories is simple and cheap, which reduces the cost of spare parts in the later stage, and is simple to repair and debug, which reduces the maintenance time and improves production efficiency.

[0035] Therefore, the gluing device 100 for cylindrical battery pole pieces provided by the present invention comprises a traction member 10, a flap 20, and a flat pasting plate 30. The traction member 10 is used to drive the pole piece 200 of the cylindrical battery to move. The pole piece 200 is welded with a plurality of pole ears 201 and the plurality of pole ears are arranged at intervals. The position where the pole ears 201 are welded on the pole piece 200 is the gluing position 202. The flap 20 is located on both sides of the gluing position of the pole piece 200. The flat pasting plate 30 is located on both sides of the gluing position of the pole piece 200 and the flat pasting plate 30 is located above the flap 20. When the gluing position 202 of the pole piece 200 is opposite to the position of the flap and / or the flat pasting plate, the traction member 10 stops running, and the flap 20 can grab the adhesive paper 10. 1 and flipped in the direction close to the pole piece 200 to attach one side of the adhesive tape 101 to the adhesive sticking position 202 of the pole piece 200, the flat sticking plate 30 can move in the direction close to the pole piece 200 and press the adhesive tape to make the other side of the adhesive tape 101 attached to the adhesive sticking position 202 of the pole piece. With this design, gluing is achieved when the pole piece is stationary, and there is no need for the pole piece to drive the adhesive roller for roller sticking, which overcomes the defect of a large proportion of poor gluing caused by the instability of the adhesive roller structure in the existing roller sticking method, reduces the scrapping of the pole piece, and improves the product qualification rate. The flat sticking plate has a simple structure, and the processing of accessories is simple and cheap, which reduces the cost of spare parts in the later stage, is simple to repair and debug, reduces the maintenance time, and improves the production efficiency.

[0036] The traction member 10 includes a first roller 11 and a second roller 12 located below the first roller 11, the pole piece 200 includes a first surface 203 and a second surface 204 opposite to the first surface 203, the pole piece parallel to the horizontal plane is bent downward to form a first bending area 205 and the first surface of the first bending area 205 abuts against the first roller, the pole piece perpendicular to the horizontal plane is bent upward to form a second bending area 206 and the second surface of the second bending area 206 abuts against the second roller 12. That is, the shape of the pole piece is an upright "Z" shape, including two pole segments parallel to the horizontal plane (one each above and below) and one pole segment perpendicular to the horizontal plane. The pole segment parallel to the horizontal plane located above is bent downward to form a pole segment perpendicular to the horizontal plane, and the pole segment perpendicular to the horizontal plane is bent upward to form a pole segment parallel to the horizontal plane located below. The first roller 11 and the second roller 12 are arranged parallel to each other up and down and are located on both sides of the pole piece. The first roller 11 and the second roller 12 are connected to a driving member that can drive the rollers to rotate, and the rotation of the two rollers can drive the pole piece to operate.

[0037] The flap 20 includes a first flap 21 and a second flap 22, and the first flap 21 and the second flap 22 are arranged in a mirror image along the pole piece 200. The flat plate 30 includes a first flat plate 31 and a second flat plate 32, and the first flat plate 31 and the second flat plate 32 are arranged in a mirror image along the pole piece 200. Specifically, the flap 20 and the flat plate 30 are located on both sides of the pole segment perpendicular to the horizontal plane, so that both sides of the pole piece can be glued, ensuring the glue effect.

[0038] Furthermore, the first flap 21 and the second flap 22 are both connected to a first driving member (not shown), and the first driving member is used to drive the first flap and the second flap to flip in a direction close to or away from the pole piece to attach or grab the adhesive tape. The first flat plate 31 and the second flat plate 32 are both connected to a second driving member (not shown), and the second driving member is used to drive the first flat plate and the second flat plate to move in a direction close to or away from the pole piece. The driving member can be a motor.

[0039] Please also read Figure 4 In some embodiments, a rotating shaft 211 is provided at one end of the flap 20, and a tape grabbing portion 212 is sleeved on the rotating shaft 211. Specifically, the tape grabbing portion 212 is provided to facilitate grabbing the tape and loading, and a through hole for connecting the first driving member is provided at the other end of the flap 20.

[0040] In some embodiments, the flat plate 30 includes a support portion 311 and connecting portions 312 at both ends of the support portion 311, and the connecting portion 312 is provided with a through hole 310 therethrough, and the connecting portion 312 is used to connect the second driving member. The surface of the support portion 311 close to the pole piece is an inclined surface, and the inclination angle of the inclined surface is 45 degrees. The inclined surface can increase the contact area between the flat plate 30 and the pole piece, which is conducive to glue sticking. The area of ​​the flat plate 30 pressing the adhesive tape accounts for one third of the total area of ​​the adhesive tape, which can ensure that there is a sufficient distance between the flat plate and the flap, and prevent the flat plate and the flap from interfering with each other.

[0041] The gluing device for cylindrical battery pole pieces provided by the present invention also includes an optical fiber sensor, which is arranged at a position close to the pole piece, and is used to sense the pole ear on the pole piece. The optical fiber sensor can sense the position of the pole ear. For example, when the optical fiber of the gluing station senses the pole ear, the pole piece is controlled to stop after running for a fixed length, that is, to stop at a position where gluing can be performed, that is, when the gluing position of the pole piece is relative to the position of the flap and / or flat plate, the pole piece stops running. Specifically, the running length can be adjusted according to actual needs.

[0042] The gluing device for cylindrical battery pole pieces provided by the present invention, in actual application, is used to weld the pole ears with an ultrasonic welding machine and then is pulled to the gluing station by a gluing traction roller. When the optical fiber at the gluing station senses the pole ears, the pole piece runs a fixed length to the gluing station and stops. The adhesive paper flap flips the prepared adhesive paper to the pole piece. After flipping into place, the left and right adhesive flat plates extend toward the pole piece at a 45-degree direction and press the adhesive paper to 1 / 3 of the position. After the adhesive paper flat plates press the adhesive paper, the adhesive paper flap opens and returns to the original position to continue preparing glue. When the adhesive paper flap returns to the original position, the adhesive flat plate is retracted and the pole piece continues to run. The above is a adhesive cycle process.

[0043] The gluing device for cylindrical battery pole pieces provided by the present invention replaces the extruded rubber roller in the prior art with a flat gluing plate. Before replacement, the rubber roller presses the adhesive paper, and the pole piece is pulled to move by the traction roller. The rubber roller sticks the adhesive paper roll on the pole piece and then releases it. After the rubber rollers on the left and right sides are not parallel to each other or the rollers are deformed, the adhesive paper is easily wrinkled due to uneven force on both sides, and sometimes the pole piece is broken. After being replaced by a flat gluing plate, the flat gluing plate presses 1 / 3 of the adhesive paper, rotates the flap back to its original position, and opens the flat gluing plate. Then the pole piece moves through the traction roller, and the remaining adhesive paper that is not tightly attached is naturally pressed by the roller, which reduces the proportion of poor gluing caused by the instability of the original structure, thereby reducing the scrapping of the pole piece. Cleaning is simple, and only the inclined surface of the flat gluing plate needs to be cleaned with alcohol regularly. Maintenance and debugging are simple, which reduces maintenance time and improves production efficiency. Accessories are simple and cheap to process, which reduces the cost of spare parts in the later stage.

[0044] See also Figure 5The present invention also provides a gluing method for a cylindrical battery pole piece gluing device based on any one of the above embodiments, the gluing method comprising the following steps:

[0045] Step S10: the pole piece is welded to the pole ear by an ultrasonic welding machine and then pulled to the glue sticking station by a pulling member;

[0046] Step S20: When the gluing position of the pole piece is opposite to the position of the flap and / or the flat plate, the traction member is controlled to stop running;

[0047] Step S30: driving the flap to grab the adhesive tape and flip it toward the direction close to the electrode to attach one side of the adhesive tape to the adhesive sticking position of the electrode;

[0048] Step S40: driving the flat plate to move towards the direction close to the pole piece and pressing the adhesive tape so that the other side of the adhesive tape is attached to the adhesive attachment position of the pole piece.

[0049] Further, step S40: after driving the flat plate to move toward the electrode and pressing the adhesive tape so that the other side of the adhesive tape is attached to the adhesive attachment position of the electrode, comprises:

[0050] The driving flap is turned back to its original position away from the pole piece and continues to grab the adhesive tape;

[0051] driving the flat plate to move in a direction away from the pole piece to release the pole piece;

[0052] The control traction member continues to drive the pole piece to operate.

[0053] Further, step S10: after the pole piece is welded with the pole ear by the ultrasonic welding machine and then pulled to the glue sticking station by the pulling member, it includes:

[0054] After the optical fiber sensor at the gluing station senses the pole ear, it controls the traction member to drive the pole piece to run a preset length so that the gluing position of the pole piece is opposite to the position of the flap and / or flat plate.

[0055] It should be noted that all embodiments of the gluing device for cylindrical battery pole pieces provided by the present invention are applicable to the gluing method based on the gluing device for cylindrical battery pole pieces provided by the present invention, and can achieve the same / similar technical effects, which will not be described one by one here.

[0056] In summary, the present invention provides a gluing device 100 and a gluing method for a cylindrical battery electrode, wherein the traction member 10 can drive the electrode 200 of the cylindrical battery to move, the electrode 200 is welded with a plurality of pole ears 201 and the plurality of pole ears are arranged at intervals, the position where the pole ears 201 are welded on the electrode 200 is the gluing position 202, the flap 20 is located on both sides of the gluing position of the electrode 200, the flat pasting plate 30 is located on both sides of the gluing position of the electrode 200 and the flat pasting plate 30 is located above the flap 20, when the gluing position 202 of the electrode 200 is relative to the position of the flap and / or the flat pasting plate, the traction member 10 stops running, and the flap 20 can grab the adhesive tape 101 and move it close to the electrode The direction of 200 is flipped to attach one side of the adhesive tape 101 to the gluing position 202 of the electrode 200, and the flat plate 30 can move toward the direction close to the electrode 200 and press the adhesive tape to make the other side of the adhesive tape 101 attached to the gluing position 202 of the electrode. Such a design realizes gluing when the electrode is stationary, and there is no need for the electrode to drive the adhesive roller for roller gluing, which overcomes the defect of a large proportion of poor gluing caused by the instability of the adhesive roller structure in the existing roller gluing method, reduces the scrapping of the electrode, and improves the product qualification rate. The flat plate has a simple structure, and the processing of accessories is simple and cheap, which reduces the cost of spare parts in the later stage, is simple to repair and debug, reduces the maintenance time, and improves production efficiency.

[0057] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gluing device for cylindrical battery pole pieces, characterized in that: It comprises a traction member, a flap and a flat plate; the traction member is used to drive the pole piece of a cylindrical battery to move, the pole piece is welded with a plurality of pole ears and the plurality of pole ears are arranged at intervals, and the position where the pole ears are welded to the pole piece is the gluing position; the flap is located on both sides of the gluing position of the pole piece, the flat plate is located on both sides of the gluing position of the pole piece and the flat plate is located above the flap; when the gluing position of the pole piece is opposite to the position of the flap and / or the flat plate, the traction member stops running, the flap is used to grab the adhesive tape and flip it in the direction close to the pole piece to attach one side of the adhesive tape to the gluing position of the pole piece, and the flat plate is used to move in the direction close to the pole piece and press the adhesive tape so that the other side of the adhesive tape is attached to the gluing position of the pole piece.

2. The gluing device for cylindrical battery pole pieces according to claim 1, characterized in that: The flap includes a first flap and a second flap, and the first flap and the second flap are arranged along the pole piece in a mirror image; the flat plate includes a first flat plate and a second flat plate, and the first flat plate and the second flat plate are arranged along the pole piece in a mirror image.

3. The gluing device for cylindrical battery pole pieces according to claim 2, characterized in that: The first flip plate and the second flip plate are both connected to the first driving member, and the first driving member is used to drive the first flip plate and the second flip plate to flip in a direction close to or away from the pole piece to attach or grab the adhesive tape; the first flat plate and the second flat plate are both connected to the second driving member, and the second driving member is used to drive the first flat plate and the second flat plate to move in a direction close to or away from the pole piece.

4. The gluing device for cylindrical battery pole pieces according to claim 1, characterized in that: The traction member includes a first roller and a second roller located below the first roller, the pole piece includes a first surface and a second surface opposite to the first surface, the pole piece parallel to the horizontal plane is bent downward to form a first bending area and the first surface of the first bending area abuts against the first roller, and the pole piece perpendicular to the horizontal plane is bent upward to form a second bending area and the second surface of the second bending area abuts against the second roller.

5. The gluing device for cylindrical battery pole pieces according to claim 1, characterized in that: The flat plate includes a supporting portion and connecting portions at both ends of the supporting portion, the connecting portion is provided with a through hole, the surface of the supporting portion close to the pole piece is an inclined surface, and the inclination angle of the inclined surface is 45 degrees; the area of ​​the flat plate pressing the adhesive tape accounts for one third of the total area of ​​the adhesive tape.

6. The gluing device for cylindrical battery pole pieces according to claim 1, characterized in that: A rotating shaft is arranged at one end of the flap, and a tape grabbing portion is sleeved on the rotating shaft.

7. The gluing device for cylindrical battery pole pieces according to claim 1, characterized in that: It also includes an optical fiber sensor, which is arranged at a position close to the pole piece and is used to sense the pole ear on the pole piece.

8. A method for gluing a cylindrical battery pole piece based on the gluing device according to any one of claims 1 to 7, characterized in that: The gluing method comprises the following steps: The pole piece is welded to the pole ear by an ultrasonic welding machine and then pulled to the glue sticking station by a pulling member; When the gluing position of the pole piece is opposite to the position of the flap and / or the flat plate, the traction member is controlled to stop running; The driving flap grabs the adhesive tape and flips it toward the direction close to the pole piece so that one side of the adhesive tape is attached to the adhesive sticking position of the pole piece; The flat pasting plate is driven to move toward the direction close to the pole piece and press the adhesive tape so that the other side of the adhesive tape is attached to the adhesive pasting position of the pole piece.

9. The adhesive laminating method according to claim 7, characterized in that: After the step of driving the flat pasting plate to move toward the pole piece and pressing the adhesive tape so that the other side of the adhesive tape is attached to the adhesive pasting position of the pole piece, the method includes: The driving flap is turned back to its original position away from the pole piece and continues to grab the adhesive tape; driving the flat plate to move in a direction away from the pole piece to release the pole piece; The control traction member continues to drive the pole piece to operate.

10. The adhesive laminating method according to claim 7, characterized in that: After the pole piece is welded with the pole ear by the ultrasonic welding machine and then pulled to the glue sticking station by the pulling member, the following steps are included: After the optical fiber sensor at the gluing station senses the pole ear, it controls the traction member to drive the pole piece to run a preset length so that the gluing position of the pole piece is opposite to the position of the flap and / or flat plate.

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