Insertion piece device and battery cell winding equipment

Abstract

The utility model discloses a sheet inserting device and battery cell winding equipment, and the sheet inserting device comprises a motor base which is provided with a first compression roller and a first motor; the movable seat is provided with a second compression roller; the motor base is in sliding fit with the moving base, an output shaft of the first motor is provided with a first cam, and the first motor can drive the first cam to rotate so as to drive the moving base to slide, so that the second pressing roller is close to the first pressing roller so as to clamp a pole piece; and the first driving part is used for driving the motor base to move. According to the invention, the synchronism of the insertion device and the pole piece moving speed can be improved, and the battery cell production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of battery production equipment, and in particular to a cell inserting device and a cell winding device. Background Art

[0002] The inserting device of the battery cell winding equipment is used to insert the electrode into the feeding correction device. During this process, the inserting device needs to clamp the electrode. The inserting device in the prior art is driven by a cylinder to clamp the electrode. Due to the slow response speed of the cylinder, it is impossible to ensure that the moving speed of the inserting device and the electrode is equal when clamping the electrode.

[0003] Therefore, it is necessary to improve the existing technology and provide a new inserting device and battery core winding equipment. Utility Model Content

[0004] One purpose of the present application is to provide a new technical solution for a sheet inserting device and a battery cell winding device.

[0005] To achieve the above-mentioned purpose, according to a first aspect of the present application, there is provided a sheet inserting device, comprising:

[0006] A motor seat, wherein the motor seat is equipped with a first pressing roller and a first motor;

[0007] A movable seat, wherein the movable seat is provided with a second pressing roller;

[0008] The motor seat is slidably matched with the moving seat, the output shaft of the first motor is equipped with a first cam, and the first motor can drive the first cam to rotate to drive the moving seat to slide, so that the second pressing roller is close to the first pressing roller to clamp the pole piece;

[0009] A first driving member, wherein the first driving member is used to drive the motor base to move.

[0010] Optionally, when the moving speed of the motor base is equal to the moving speed of the pole piece between the first pressing roller and the second pressing roller, the first pressing roller and the second pressing roller clamp the pole piece.

[0011] Optionally, the moving seat is provided with a first cam follower, and the first cam follower cooperates with the first cam to drive the moving seat to slide.

[0012] Optionally, the movable seat is installed with a connecting block, and the first cam follower is a roller, and the roller is installed on the connecting block.

[0013] Optionally, the movable seat is connected to the motor seat via a guide rod, and the guide rod is provided with a first elastic member, and the first elastic member can apply a first elastic force to the movable seat to move the second pressure roller away from the first pressure roller.

[0014] Optionally, the motor seat is installed with a first supporting plate, and the movable seat is installed with a second supporting plate, and there is a gap between the first supporting plate and the second supporting plate to support the pole piece.

[0015] Optionally, the inserting device further comprises a support and a motor cam rotating mechanism, wherein the support rotates in cooperation with the motor seat, and the motor cam rotating mechanism can drive the motor seat to rotate so that the pole piece clamped by the first pressure roller and the second pressure roller swings along the width direction of the pole piece.

[0016] Optionally, the motor cam rotation mechanism includes a second motor and a second cam follower, the output shaft of the second motor is equipped with a second cam, and the second cam follower cooperates with the second cam to drive the motor base to rotate; the second motor is installed on the motor base, and the second cam follower is installed on the support, or the second motor is installed on the support, and the second cam follower is installed on the motor base.

[0017] Optionally, the support is installed with a first connecting rod, the motor seat is installed with a second connecting rod, a second elastic member is arranged between the first connecting rod and the second connecting rod, and the second elastic member can apply a second elastic force to the second connecting rod to make the second connecting rod close to the first connecting rod.

[0018] Optionally, the inserting device further comprises: a cutting mechanism and a second driving member, wherein the second driving member is used to drive the cutting mechanism to move so that the moving speed of the cutting mechanism is equal to the moving speed of the pole piece between the first pressing roller and the second pressing roller.

[0019] Optionally, when the moving speed of the motor seat is equal to the moving speed of the pole piece between the first pressure roller and the second pressure roller, the first pressure roller and the second pressure roller clamp the pole piece, and then, when the moving speed of the cutting mechanism is equal to the moving speed of the pole piece between the first pressure roller and the second pressure roller, the cutting mechanism cuts the pole piece.

[0020] According to a second aspect of the present application, a battery cell winding device is provided, comprising: the inserting device as described above.

[0021] Optionally, the battery cell winding equipment also includes a feed deviation correction device and a winding needle. In the direction of movement of the pole piece, the insertion device is located upstream of the feed deviation correction device, and the winding needle is located downstream of the feed deviation correction device. The feed deviation correction device is used to correct the pole piece inserted into the winding needle.

[0022] The inserting device in the embodiment of the present application uses a first motor to drive a cam to clamp the pole piece, so it can respond quickly during the movement of the pole piece, ensuring the synchronization of the moving speed of the inserting device and the pole piece when clamping the pole piece, and has the advantage of a compact structure. The battery cell winding equipment can have better winding accuracy and efficiency by using the above-mentioned inserting device.

[0023] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0025] Figure 1 It is a three-dimensional diagram of an inserting device according to an embodiment of the present application.

[0026] Figure 2 This is a front view of an insert device according to an embodiment of the present application.

[0027] Figure 3 It is a rear view of an inserting device according to an embodiment of the present application.

[0028] Figure 4 It is a three-dimensional diagram from another angle of the inserting device of one embodiment of the present application.

[0029] Figure 5 This is a front view of a battery cell winding device according to an embodiment of the present application.

[0030] Figure 6 This is a rear view of a battery cell winding device according to an embodiment of the present application.

[0031] Figure 7 This is a working principle diagram of a battery cell winding device according to an embodiment of the present application.

[0032] Figure 8 This is a schematic diagram of the pole piece swinging process of an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Pole piece; 2. Inserting device; 201. Motor seat; 202. First pressure roller; 203. First motor; 204. Moving seat; 205. Second pressure roller; 206. First cam; 207. First cam follower; 208. Connecting block; 209. Guide rod; 210. First elastic member; 211. First support plate; 212. Second support plate; 213. Support; 214. Second motor; 215. Second cam; 216. Second cam follower; 217. First connecting rod; 218. Second connecting rod; 219. Second elastic member; 220. Bearing seat; 221. Rotating shaft; 222. Cutting mechanism; 223. Mounting plate; 224. First driving member; 225. Second driving member; 3. Feeding deviation correction device; 4. Turret; 401. Winding needle. DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0040] In the following description, each driving member can adopt a power source such as a cylinder, a first motor, etc., and a transmission method such as a piston transmission, a gear rack transmission, etc.

[0041] In the following description, the pole piece 1 is only used to describe the working principle of the pole piece device and the battery cell winding device, and should not be regarded as a part of any mechanism, device or equipment.

[0042] In the following description, "connection" includes both a direct connection between the two and an indirect connection between the two via, for example, an adapter plate, a driving member, etc.

[0043] like Figures 1 to 7As shown, according to the first aspect of the embodiment of the present application, there is provided a sheet inserting device 2, comprising: a motor seat 201, the motor seat 201 is equipped with a first pressure roller 202 and a first motor 203; a moving seat 204, the moving seat 204 is equipped with a second pressure roller 205. The motor seat 201 and the moving seat 204 are slidably matched, the output shaft of the first motor 203 is equipped with a first cam 206, the first motor 203 can drive the first cam 206 to rotate to drive the moving seat 204 to slide, so that the second pressure roller 205 is close to the first pressure roller 202 to clamp the pole piece 1; a first driving member 224, the first driving member 224 is used to drive the motor seat 201 to move.

[0044] Specifically, the motor seat 201 can be an integral structure or a structure formed by bending and welding a plurality of separate plates. The motor seat 201 is equipped with a first pressure roller 202, which can be a rotating roller or a fixed roller. Similarly, the mobile seat 204 can be an integral structure or a structure formed by bending and welding a plurality of separate plates. The mobile seat 204 is equipped with a second pressure roller 205, which can be a rotating roller or a fixed roller. The motor seat 201 and the mobile seat 204 can slide and cooperate with each other through mechanisms such as slide rails, guide grooves, and guide rods, so that the first pressure roller 202 and the second pressure roller 205 can move closer to or farther from each other. The output shaft of the first motor 203 is equipped with a first cam 206, and the first motor 203 can drive the first cam 206 to rotate, and the first cam 206 further drives the mobile seat 204 to slide, so that the second pressure roller 205 moves closer to the first pressure roller 202 to clamp the pole piece 1. The moving end of the first driving member 224 is directly connected to the motor base 201, or connected to the support 213 described below. The action of the first driving member 224 can drive the motor base 201 to move, so the first pressure roller 202 and the second pressure roller 205 can also move, so the first pressure roller 202 and the second pressure roller 205 can clamp the pole piece 1 during the movement, rather than clamping the pole piece 1 when the motor base 201 is in a static state. The first driving member 224 can be a cylinder, or a motor screw, etc. The first driving member 224 can be installed on the mounting plate 223, and the motor base 201 or the support 213 is slidably matched with the mounting plate 223, so as to realize the sliding match between the inserting device 2 and the mounting plate 223. In this way, when the first driving member drives the motor base 201 or the support 213, the motor base 201 can be moved, and the motor base 201 thus obtains a moving speed. The first motor 203 is used to drive the first cam 206. By utilizing the short response time of the motor, the first pressing roller 202 and the second pressing roller 205 can quickly clamp the pole piece, ensuring that the inserting device 2 can quickly clamp the pole piece 1 during movement, ensuring the movement synchronization of the pole piece 1 and the inserting device 2, and ensuring the position accuracy of the clamped pole piece 1. In addition, the structure in which the first motor 203 drives the first cam 206 to rotate occupies less space than the cylinder piston rod driving structure, which is conducive to compact structure and reduces the production space occupation.

[0045] In this embodiment, when the moving speed of the motor base 201 is equal to the moving speed of the pole piece 1 between the first pressing roller 202 and the second pressing roller 205 , the first pressing roller 202 and the second pressing roller 205 clamp the pole piece 1 .

[0046] Specifically, when the inserting device 2 is working, the pole piece 1 is in the process of winding, so the pole piece 1 has a certain moving speed. The first driving member 224 first drives the motor seat 201 to move, and the first motor 203 drives the first cam 206 to rotate during the movement of the motor seat 201. When the moving speed of the motor seat 201 is equal to the moving speed of the pole piece 1 between the first pressure roller 202 and the second pressure roller 205, the first pressure roller 202 and the second pressure roller 205 reach a state of clamping the pole piece 1. In this article, the moving speed of the motor seat 201 is equal to the moving speed of the pole piece 1 between the first pressure roller 202 and the second pressure roller 205, which means that the difference between the moving speed of the pole piece 1 and the moving speed of the motor seat 201 is within a threshold range, for example, the moving speed difference is within the range of 0.1 mm per second, 0.01 mm per second, etc., at which time it can be considered that the moving speeds of the two are equal. That is to say, in this embodiment, the clamping of the electrode sheet 1 by the first pressing roller 202 and the second pressing roller 205 will not affect the moving speed of the electrode sheet 1, so the synchronization is better, the insertion process will not affect the conveying speed of the electrode sheet 1, and the battery cell production efficiency is higher.

[0047] like Figure 1 and Figure 2 As shown, the moving seat 204 is installed with a first cam follower 207 , and the first cam follower 207 cooperates with the first cam 206 to drive the moving seat 204 to slide.

[0048] Specifically, the first cam follower 207 can be a curved surface or a roller. When the first cam 206 rotates, the first cam follower 207 cooperates with the first cam 206. The first cam follower 207 converts the rotation of the first cam 206 into a linear movement of the moving seat 204, thereby driving the second pressure roller 205 to approach the first pressure roller 202 in a linear motion, thereby clamping the pole piece 1 more evenly.

[0049] like Figure 1 and Figure 2 As shown, the movable seat 204 is installed with a connecting block 208 , and the first cam follower 207 is a roller, which is installed on the connecting block 208 .

[0050] Specifically, the connecting block 208 may be a T-shaped structure, an I-shaped structure, etc., and the first cam follower 207 is in the form of a roller, which can rotate after being installed on the connecting block 208. When the first cam 206 rotates, the first cam follower 207 pushes the connecting block 208 to move linearly while rotating. The use of a roller can effectively reduce the wear of the first cam 206.

[0051] like Figure 2 , Figure 3 , Figure 4As shown, the movable seat 204 is connected to the motor seat 201 via a guide rod 209. The guide rod 209 is provided with a first elastic member 210, which can apply a first elastic force to the movable seat 204 to keep the second pressing roller 205 away from the first pressing roller 202.

[0052] Specifically, in Figures 2 to 4 In the illustrated embodiment, the movable seat 204 is fixedly connected to the guide rod 209, the motor seat 201 is provided with a through hole, and the guide rod 209 is matched with the through hole gap, so as to realize the sliding match between the movable seat 204 and the motor seat 201. The end of the guide rod 209 away from the movable seat 204 is sleeved with a first elastic member 210, and the first elastic member 210 plays the role of a compression spring. When the first cam 206 rotates to the process of the cam vertex abutting against the first cam follower 207, the movable seat 204 drives the second pressure roller 205 to approach the first pressure roller 202, and the first elastic member 210 is compressed to generate a first elastic force. When the first cam 206 rotates to make the cam vertex disengage from the first cam follower 207, the first elastic force pulls the guide rod 209 to make the second pressure roller 205 away from the first pressure roller 202. In other embodiments of the present application, the first elastic member 210 can also be a tension spring, for example, sleeved on the guide rod 209 and one end is connected to the motor seat 201 and the other end is connected to the movable seat 204. When the first cam 206 rotates to the process of the cam vertex abutting against the first cam follower 207, the moving seat 204 drives the second pressing roller 205 to approach the first pressing roller 202, and the first elastic member 210 is stretched to generate the first elastic force. When the first cam 206 rotates to make the cam vertex disengage from the first cam follower 207, the first elastic force pulls the guide rod 209 to move the second pressing roller 205 away from the first pressing roller 202. In this way, after the insertion of the electrode sheet is completed, the first pressing roller 202 can automatically move away from the second pressing roller 205 to release the electrode sheet 1, so that the electrode sheet 1 can continue to be wound.

[0053] like Figure 1 and Figure 4 As shown, the motor base 201 is installed with a first supporting plate 211 , and the moving base 204 is installed with a second supporting plate 212 . There is a gap between the first supporting plate 211 and the second supporting plate 212 to support the pole piece 1 .

[0054] Specifically, the motor base 201 is installed with a first support plate 211, and the moving base 204 is installed with a second support plate 212, so when the first cam 206 drives the moving base 204 to slide, the second support plate 212 can be close to the first support plate 211, but even when the distance between the first support plate 211 and the second support plate 212 is the smallest, there is still a gap between the first support plate 211 and the second support plate 212 to support the pole piece 1, that is, the first support plate 211 and the second support plate 212 only guide the pole piece 1 and do not clamp the pole piece 1, so that the pole piece 1 is convenient for subsequent cutting operations. Similarly, when the second pressure roller 205 is away from the first pressure roller 202, the second support plate 212 is also away from the first support plate 211 accordingly.

[0055] like Figures 1 to 4 As shown, the inserting device 2 also includes a support 213 and a motor cam rotating mechanism, and the support 213 is rotatably matched with the motor base 201. The motor cam rotating mechanism can drive the motor base 201 to rotate so that the pole piece 1 clamped by the first pressing roller 202 and the second pressing roller 205 swings along the width direction of the pole piece 1.

[0056] Specifically, the support 213 can be an integral structure or a structure formed by bending and welding multiple plates. The support 213 can be rotated with the motor base 201 by means of a rotating shaft, a ball-and-socket structure, etc. The motor cam rotating mechanism drives the motor base 201 to rotate relative to the support 213. At this time, the pole piece 1 clamped by the first pressing roller 202 and the second pressing roller 205 swings along the width W of the pole piece 1. Figure 8 The solid line position shown enters the dotted line position swinging to the left or the dotted line position swinging to the right, thereby correcting the pole piece 1 to ensure the feeding accuracy of the pole piece 1. Compared with the traditional motor screw drive mechanism, the motor cam rotation mechanism can occupy a smaller space and has a more compact structure.

[0057] like Figures 1 to 4 As shown, the motor cam rotating mechanism includes a second motor 214 and a second cam follower 216. The output shaft of the second motor 214 is mounted with a second cam 215, and the second cam follower 216 cooperates with the second cam 215 to drive the motor base 201 to rotate. In one embodiment of the present application, the second motor 214 is mounted on the motor base 201, and the second cam follower 216 is mounted on the support 213. In another embodiment of the present application, the second motor 214 is mounted on the support 213, and the second cam follower 216 is mounted on the motor base 201.

[0058] Specifically, taking the example of the motor base 201 being equipped with the second motor 214 and the support 213 being equipped with the second cam follower 216, the second cam follower 216 can be a curved surface or in the form of a roller. The second cam follower 216 cooperates with the second cam 215. When the second motor 214 drives the second cam 215 to rotate, since the support 213 does not rotate, the contact point between the second cam 215 and the second cam follower 216 changes, so the second cam 215 drives the motor base 201 to rotate relative to the support 213. Similarly, taking the example of the motor base 201 being equipped with the second cam follower 216 and the support 213 being equipped with the second motor 214, the second cam follower 216 can be a curved surface or in the form of a roller. The second cam follower 216 cooperates with the second cam 215. When the second motor 214 drives the second cam 215 to rotate, since the support 213 does not rotate, the abutment point between the second cam 215 and the second cam follower 216 changes, so the second cam follower 216 drives the motor base 201 to rotate relative to the support 213.

[0059] like Figures 1 to 4 As shown, the support 213 is installed with a first connecting rod 217, the motor base 201 is installed with a second connecting rod 218, and a second elastic member 219 is arranged between the first connecting rod 217 and the second connecting rod 218. The second elastic member 219 can apply a second elastic force to the second connecting rod 218 to make the second connecting rod 218 close to the first connecting rod 217.

[0060] Specifically, the support 213 is provided with a first connecting rod 217, which means that the first connecting rod 217 is fixedly connected to the support 213. Similarly, the motor base 201 is provided with a second connecting rod 218, which means that the second connecting rod 218 is fixedly connected to the motor base 201. In this embodiment, the second elastic member 219 is a tension spring, one end of the second elastic member 219 is connected to the first connecting rod 217, and the other end is connected to the second connecting rod 218. When the second cam 215 rotates to the cam vertex and abuts against the second cam follower 216, the motor base 201 rotates, the first connecting rod 217 and the second connecting rod 218 move away from each other, and the second elastic member 219 is stretched to generate a second elastic force. When the second cam 215 rotates to the cam vertex and releases the contact with the second cam follower 216, the second elastic force makes the second connecting rod 218 approach the first connecting rod 217, and the motor base 201 rotates. Similar to the first elastic member 210, the second elastic member 219 can also be in the form of a compression spring, which will not be described in detail herein.

[0061] like Figure 3 and Figure 4As shown, the motor seat 201 is installed with a bearing seat 220, and the support 213 is installed with a rotating shaft 221. The rotating shaft 221 and the bearing seat 220 are rotatably matched, and the bearing seat 220 and the second motor 214 are respectively located on both sides of the first motor 203.

[0062] Specifically, the rotating shaft 221 is rotatably matched with the bearing seat 220, so the rotating shaft 221 can be used as the rotating shaft of the motor seat 201. The bearing seat 220 and the second motor 214 are respectively located on both sides of the first motor 203, which means that the first motor 203 can drive the moving seat 204 in the middle of the motor seat 201, and the rotating shaft of the motor seat 201 is on one side of the motor seat 201. This arrangement makes the arrangement of the first motor 203 and the second motor 214 more compact and makes rational use of space. On the other hand, it makes the clamping force of the first pressure roller 202 and the second pressure roller 205 more uniform, and the second motor 214 can give the motor seat 201 a larger torsional torque, which is beneficial to the deviation correction of the pole piece 1.

[0063] like Figure 5 , Figure 6 and Figure 7 As shown, the inserting device 2 further includes: a cutting mechanism 222 and a second driving member 225. The second driving member 225 is used to drive the cutting mechanism 222 to move so that the moving speed of the cutting mechanism 222 is equal to the moving speed of the pole piece 1 between the first pressing roller 202 and the second pressing roller 205.

[0064] Specifically, the cutting mechanism 222 is used to cut the pole piece 1. The cutting mechanism 222 can achieve sliding cooperation with the mounting plate 223 through structures such as linear rails and slider grooves. The second driving member 225 can be a cylinder or a motor screw. The second driving member 225 can be installed on the mounting plate 223, and the second driving member 225 can drive the cutting mechanism 222 to slide so that the moving speed of the cutting mechanism 222 is equal to the moving speed of the pole piece 1 between the first pressure roller 202 and the second pressure roller 205. In this article, the moving speed of the cutting mechanism 222 is equal to the moving speed of the pole piece 1 between the first pressure roller 202 and the second pressure roller 205, which means that the difference between the moving speed of the cutting mechanism 222 and the moving speed of the pole piece 1 between the first pressure roller 202 and the second pressure roller 205 is within a threshold range, for example, the moving speed difference is within the range of 0.1 mm per second, 0.01 mm per second, etc., at which time the moving speeds of the two can be considered equal. In this way, the cutting mechanism 222 can cut the pole piece 1 during the movement, thereby ensuring the cutting position accuracy.

[0065] like Figure 5 , Figure 6 and Figure 7As shown, when the moving speed of the motor base 201 is equal to the moving speed of the pole piece 1 between the first pressure roller 202 and the second pressure roller 205, the first pressure roller 202 and the second pressure roller 205 clamp the pole piece 1, and then, when the moving speed of the cutting mechanism 222 is equal to the moving speed of the pole piece 1 between the first pressure roller 202 and the second pressure roller 205, the cutting mechanism 222 cuts the pole piece 1.

[0066] Specifically, when the inserting device 2 is working, first the first driving member 224 drives the motor seat 201 to move, and then the first motor 203 drives the first cam 206 to rotate. When the moving speed of the motor seat 201 is equal to the moving speed of the pole piece 1, the first pressing roller 202 and the second pressing roller 205 just clamp the pole piece 1. Similarly, the second driving member 225 drives the cutting mechanism 222 to move. After the first pressing roller 202 and the second pressing roller 205 clamp the pole piece 1, when the moving speed of the cutting mechanism 222 is also equal to the moving speed of the pole piece 1, the cutting mechanism 222 cuts the pole piece 1, and the cut pole piece 1 continues to be wound and finished, and the new end of the pole piece 1 is continuously transported downstream by the first pressing roller 202 and the second pressing roller 205. That is to say, when the cutting mechanism 222 cuts the electrode 1, the cutting mechanism 222, the motor base 201 and the electrode 1 move at the same speed, and the entire cutting process will not affect the conveying speed of the electrode 1, so the battery cell production efficiency is higher.

[0067] like Figures 1 to 7 As shown, according to the second aspect of the present application, a battery cell winding device is also provided, comprising: the aforementioned inserting device 2. The battery cell winding device has the advantages of sensitive response, good synchronization, compact structure, high battery cell production efficiency, etc. due to the use of the aforementioned inserting device 2.

[0068] like Figure 5 and Figure 6 As shown, the battery cell winding equipment also includes: a feed deviation correction device 3 and a winding needle 401. In the moving direction of the pole piece, the insertion device 2 is located upstream of the feed deviation correction device 3, and the winding needle 401 is located downstream of the feed deviation correction device 3. The feed deviation correction device 3 is used to correct the pole piece 1 inserted into the winding needle 401.

[0069] Specifically, a winding needle 401 is provided on the turret 4, and the turret 4 can rotate so that the winding needle 401 is in different stations. When the winding needle 401 is in the winding station, the end of the pole piece 1 can be inserted into the winding needle 401 and wound together with the diaphragm to form a battery cell. In the moving direction of the pole piece, the pole piece 1 is first clamped by the inserting device 2, and in the process of the inserting device 2 clamping the pole piece 1, the pole piece 1 is then cut by the cutting mechanism 222. After the cut pole piece is wound by a winding needle 401, the turret 4 rotates, and the next winding needle 401 enters the winding station, and the inserting device 2 continues to clamp the pole piece 1 and moves, inserting the end of the pole piece 1 into the feeding correction device 3, and the feeding correction device 3 corrects the pole piece 1 inserted into the winding needle 401. From the perspective of the entire insertion process, the insertion device 2 can use the second motor 214 to correct the cutting process of the electrode 1, and the feeding correction device 3 can correct the transmission process after the electrode 1 is inserted into the winding needle 401, thereby ensuring that the cutting position of the electrode 1 and the electrode position in the subsequent winding process are accurate, so that the end face of the battery cell formed by winding is flat, thereby improving the battery cell yield.

[0070] In this embodiment, when the cutting mechanism 222 cuts off the pole piece 1, the moving speed of the pole piece 1, the moving speed of the motor base 201, and the moving speed of the cutting mechanism 222 are equal, that is, the difference between any two moving speeds is within a threshold range, such as 0.1 mm per second and 0.01 mm per second. In other words, the clamping and cutting of the pole piece 1 by the inserting device 2 does not affect the moving speed of the pole piece 1 itself. The clamping and cutting actions are completed during the movement of the pole piece 1, so the winding speed of the battery cell will not be reduced, so that the production efficiency is improved. The second motor 214 can use the second cam 215 to correct the clamped pole piece 1 to ensure the accurate cutting position. After cutting, the feeding correction device 3 is used to correct the pole piece 1 during the transmission process after the pole piece 1 is inserted into the winding needle 401 to ensure that the end faces of both ends of the battery cell are flat after winding, thereby improving the battery cell yield.

[0071] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0072] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A sheet inserting device (2), characterized in that: include: A motor seat (201), wherein the motor seat (201) is equipped with a first pressing roller (202) and a first motor (203); A movable seat (204), wherein the movable seat (204) is provided with a second pressing roller (205); The motor seat (201) is slidably matched with the moving seat (204); the output shaft of the first motor (203) is provided with a first cam (206); the first motor (203) can drive the first cam (206) to rotate so as to drive the moving seat (204) to slide, so that the second pressing roller (205) is close to the first pressing roller (202) to clamp the pole piece (1); A first driving member (224), wherein the first driving member (224) is used to drive the motor base (201) to move.

2. The inserting device according to claim 1, characterized in that: When the moving speed of the motor base (201) is equal to the moving speed of the pole piece (1) between the first pressing roller (202) and the second pressing roller (205), the first pressing roller (202) and the second pressing roller (205) clamp the pole piece (1).

3. The inserting device according to claim 1, characterized in that: The movable seat (204) is installed with a first cam follower (207), and the first cam follower (207) cooperates with the first cam (206) to drive the movable seat (204) to slide.

4. The inserting device according to claim 3, characterized in that: The movable seat (204) is installed with a connecting block (208); the first cam follower (207) is a roller, and the roller is installed on the connecting block (208).

5. The inserting device according to claim 1, characterized in that: The movable seat (204) is connected to the motor seat (201) via a guide rod (209), and the guide rod (209) is provided with a first elastic member (210), and the first elastic member (210) can apply a first elastic force to the movable seat (204) to move the second pressure roller (205) away from the first pressure roller (202).

6. The inserting device according to claim 1, characterized in that: The motor seat (201) is installed with a first support plate (211), and the movable seat (204) is installed with a second support plate (212), and there is a gap between the first support plate (211) and the second support plate (212) to support the pole piece (1).

7. The inserting device according to claim 1, characterized in that: It also includes a support (213) and a motor cam rotating mechanism, wherein the support (213) is rotationally matched with the motor seat (201), and the motor cam rotating mechanism can drive the motor seat (201) to rotate so that the pole piece (1) clamped by the first pressing roller (202) and the second pressing roller (205) swings along the width direction of the pole piece (1).

8. The inserting device according to claim 7, characterized in that: The motor cam rotating mechanism comprises a second motor (214) and a second cam follower (216); the output shaft of the second motor (214) is mounted with a second cam (215); the second cam follower (216) cooperates with the second cam (215) to drive the motor base (201) to rotate; The second motor (214) is mounted on the motor base (201), and the second cam follower (216) is mounted on the support (213); or the second motor (214) is mounted on the support (213), and the second cam follower (216) is mounted on the motor base (201).

9. The inserting device according to claim 7 or 8, characterized in that: The support (213) is installed with a first connecting rod (217), and the motor base (201) is installed with a second connecting rod (218). A second elastic member (219) is provided between the first connecting rod (217) and the second connecting rod (218), and the second elastic member (219) can apply a second elastic force to the second connecting rod (218) to make the second connecting rod (218) close to the first connecting rod (217).

10. The inserting device according to claim 1, characterized in that: Also includes: A cutting mechanism (222) and a second driving member (225), wherein the second driving member (225) is used to drive the cutting mechanism (222) to move so that the moving speed of the cutting mechanism (222) is equal to the moving speed of the pole piece (1) between the first pressing roller (202) and the second pressing roller (205).

11. The inserting device according to claim 10, characterized in that: When the moving speed of the motor seat (201) is equal to the moving speed of the pole piece (1) between the first pressure roller (202) and the second pressure roller (205), the first pressure roller (202) and the second pressure roller (205) clamp the pole piece (1), and then, when the moving speed of the cutting mechanism (222) is equal to the moving speed of the pole piece (1) between the first pressure roller (202) and the second pressure roller (205), the cutting mechanism (222) cuts the pole piece (1).

12. A battery cell winding device, characterized in that: include: The insert device (2) as claimed in any one of claims 1 to 11.

13. The battery cell winding device according to claim 12, characterized in that: It also comprises a feed-in deviation correction device (3) and a winding needle (401); in the direction of movement of the pole piece, the inserting device (2) is located upstream of the feed-in deviation correction device (3), and the winding needle (401) is located downstream of the feed-in deviation correction device (3); the feed-in deviation correction device (3) is used to correct the deviation of the pole piece (1) inserted into the winding needle (401).

Images