Automatic roll change device and cell winding apparatus

Abstract

An automatic roll change device (100), comprising: a starting mechanism (300), which comprises a first material pick-up member (303), wherein the first material pick-up member (303) can move between a starting station and a transfer station to pick up a starting end of a standby material strip (204) on a standby material roll (202), and drive the starting end of the standby material strip (204) to separate from the standby material roll (202) and move in a direction away from the standby material roll (202); a material strip transfer mechanism (400), which comprises a second material pick-up member (401), wherein the second material pick-up member (401) can move between the transfer station and a strip joining station to transfer the starting end of the standby material strip (204) from the first material pick-up member to the strip joining station; and adhesive tape affixing mechanisms (500), each of which comprises a strip joining assembly (501), wherein the strip joining assembly (501) is located on the strip joining station, and the strip joining assembly (501) can hold in place the starting end of the standby material strip (204) located on the second material pick-up member (401), enabling a tail end of a working material strip and the starting end of the standby material strip to be bonded together by means of a single-sided adhesive tape. The automatic roll change device can improve the roll change efficiency. Further provided is a cell winding apparatus.

Description

Automatic reel changing device and battery cell winding equipment

[0001] This disclosure claims priority to Chinese patent applications filed with the Patent Office of China on November 13, 2023, with application numbers 202311510693.4 and 202323066204.9, entitled “Automatic Reel Changing Device and Battery Cell Winding Equipment,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of battery production equipment, and in particular to an automatic roll changing device and a battery cell winding device. Background Art

[0003] In the prior art, when the working tape on the working material roll is about to run out, the spare tape on the spare material roll needs to be promptly pasted together with the working tape so that the winding needle on the turret can continue to wind the tape to produce battery cells. In the prior art, the starting end of the spare tape is connected automatically with the tail end of the working tape and the starting end of the spare tape by using double-sided tape. The specific implementation method is: a swing arm is used to drive the tail end of the working tape to swing to the starting end of the spare tape on the spare material roll. The starting end of the spare tape is first affixed with double-sided tape, thereby connecting the tail end of the working tape and the starting end of the spare tape. This method has the following disadvantages: a portion of the double-sided tape between the tail end of the working tape and the starting end of the spare tape has no tape on one side, so that the side of the double-sided tape that is not affixed with the tape will adhere to the roller during the process of conveying the tape, and there is a risk that the tape will be stuck to the glue on the roller.

[0004] Therefore, the tail end of the working tape and the starting end of the backup tape cannot be glued together using double-sided tape, but must be glued together using single-sided tape. However, the existing technology of using single-sided tape to glue the tail end of the working tape and the starting end of the backup tape together is basically a semi-automatic method, which requires manual tearing of the starting end, increasing the labor intensity of workers and affecting the efficiency of the tape splicing.

[0005] Therefore, it is necessary to improve the existing technology and provide a new automatic roll changing device.

[0006] Summary of the Invention

[0007] One purpose of the present application is to provide a new technical solution for an automatic roll changing device and a battery cell winding device.

[0008] To achieve the above-mentioned objectives, according to the first aspect of the present application, an automatic roll changing device is provided, including: a starting mechanism, the starting mechanism including a first material picking member, the first material picking member being able to move between a starting station and a transfer station to pick up the starting end of a spare material tape on the spare material roll, and drive the starting end of the spare material tape to separate from the spare material roll and move in a direction away from the spare material roll; a material tape transfer mechanism, the material tape transfer mechanism including a second material picking member, the second material picking member being able to move between the transfer station and the splicing station to transfer the starting end of the spare material tape on the first material picking member to the splicing station; a gluing mechanism, the gluing mechanism including a splicing assembly, the splicing assembly being located at the splicing station, the splicing assembly being able to adsorb the starting end of the spare material tape on the second material picking member, so that the single-sided adhesive bonds the tail end of the working material tape and the starting end of the spare material tape together.

[0009] Optionally, the starting mechanism includes: a mounting seat; a movable seat, the movable seat slidingly cooperates with the mounting seat, and the movable seat is equipped with the first material picking member; a first driving member, the first driving member can drive the movable seat to move so that the first material picking member moves between the starting station and the transfer station.

[0010] Optionally, the first picking member has a first picking end and a second picking end that are opposite to each other.

[0011] Optionally, the automatic roll changing device also includes: a first sensor, which is used to detect the starting end position of the spare material tape on the spare material roll, and the first driving member drives the movable seat to move according to the starting end position signal detected by the first sensor, so that the first material picking member reaches the position of picking up the starting end of the spare material tape on the spare material roll.

[0012] Optionally, the first sensor is mounted on the movable seat, and the movable seat is equipped with a second driving member, which is used to drive the first sensor to rotate toward the first material picking end side of the first material picking member or toward the second material picking end side of the first material picking member.

[0013] Optionally, the automatic roll changing device also includes a second sensor, which is used to detect the diameter of the spare roll. The first driving member can drive the movable seat to a predetermined position according to the diameter signal detected by the second sensor, so that the starting end of the spare material tape on the spare roll can enter the detection range of the first sensor.

[0014] Optionally, the first material picking end and / or the second material picking end of the first material picking member have a first adsorption block and a second adsorption block spaced apart from each other in a first direction, the first adsorption block is connected to a first vacuum pumping device, the second adsorption block is connected to a second vacuum pumping device, and the first vacuum pumping device and the second vacuum pumping device can work independently.

[0015] Optionally, the material belt transfer mechanism also includes: a fixed plate; a first support, the first support is installed on the fixed plate and can move along the first direction, the second material picking member is installed on the first support and can move along the second direction, the second material picking member includes a third adsorption block, the third adsorption block has an adsorption hole, and the adsorption hole is connected to the vacuum device; a third driving member, the third driving member is used to drive the first support to move to drive the second material picking member to move between the transfer station and the belt connecting station; the first direction intersects with the second direction.

[0016] Optionally, the material belt transport mechanism further includes a fourth driving member, and the fourth driving member is used to drive the second material picking member to rotate around the axis of the second material picking member.

[0017] Optionally, the material belt transfer mechanism also includes: a second support, which is installed on the first support and can move along the second direction, and the second material picking member is installed on the second support; and a fifth driving member, which is used to drive the second support to move to adjust the position of the second material picking member in the second direction.

[0018] Optionally, the automatic roll changing device also includes a third sensor, which is used to detect the edges of the working material strip and the spare material strip. The fifth driving member drives the second support to move according to the edge signal detected by the third sensor to adjust the position of the second material picking member in the second direction so that the edge of the working material strip is aligned with the edge of the spare material strip.

[0019] Optionally, the glue applying mechanism also includes a glue preparation component; the tape connecting component includes a glue applying part, and the glue applying part includes a first adsorption part and a second adsorption part, the first adsorption part is used to adsorb the single-sided glue, and the second adsorption part is used to adsorb the material tape; the glue preparation component is used to place a section of single-sided glue on the first adsorption part.

[0020] Optionally, the glue preparation assembly includes a mounting plate, the mounting plate is equipped with a rotatable single-sided glue discharge member, a single-sided glue end retaining member and a seventh driving member, the single-sided glue discharge member is used to load the single-sided glue roll, the seventh driving member is used to drive the first movable plate to move along the second direction to approach or move away from the single-sided glue end retaining member, the first movable plate is equipped with an eighth driving member, the eighth driving member is connected to the second movable plate, the second movable plate is equipped with a rotatable glue pulling roller, the glue pulling roller is used to wind the single-sided glue, and the eighth driving member is used to drive the glue pulling roller to move along the first direction to abut against or move away from the single-sided glue end retaining member; the first direction intersects with the second direction.

[0021] Optionally, the mounting plate is further provided with a ninth driving member, which is used to drive the first cutter to move to cut the single-sided adhesive tape, and the first cutter is located between the single-sided adhesive tape end retainer and the adhesive tape.

[0022] Optionally, the second movable plate is further provided with a tenth driving member, and the tenth driving member is used to drive the pressing block to clamp the rubber-pulling roller or loosen the rubber-pulling roller.

[0023] Optionally, the tape splicing assembly further includes a twelfth driving member, which can drive the glue-applying member to flip so that the first adsorption member is in a glue-ready state or in a tape-connecting state; when the first adsorption member is in the glue-ready state, the adsorption surface of the first adsorption member is flush with the adsorption surface of the single-sided glue end retaining member of the glue-ready assembly.

[0024] Optionally, the second adsorption component includes a fourth adsorption block and a fifth adsorption block spaced apart from each other, the fourth adsorption block is connected to the third vacuum pumping device, the fifth adsorption block is connected to the fourth vacuum pumping device, and the third vacuum pumping device and the fourth vacuum pumping device can work independently.

[0025] Optionally, the automatic roll changing device also includes: a first unwinding shaft and a second unwinding shaft, the first unwinding shaft and the second unwinding shaft are used to load the material roll; the two gluing mechanisms are arranged opposite to each other, and the tape connecting assembly of one of the gluing mechanisms is also equipped with a second cutter, the second cutter can cut the working material tape, or can cut the working material tape and the spare material tape. When one of the gluing mechanisms absorbs the tail end of the working material tape and the starting end of the spare material tape, the other gluing mechanism can use the absorbed single-sided tape to bond the tail end of the working material tape and the starting end of the spare material tape together.

[0026] Optionally, the automatic roll-changing device further comprises a fourth movable plate and a thirteenth driving member, the tape connecting assembly of one of the gluing mechanisms is mounted on the fourth movable plate, and the thirteenth driving member drives the fourth movable plate to move closer to or away from the tape connecting assembly of another of the gluing mechanisms; and / or, the automatic roll-changing device further comprises a fifth movable plate and a fourteenth driving member, the tape connecting assembly of another of the gluing mechanisms is mounted on the fifth movable plate, and the fourteenth driving member drives the fifth movable plate to move so that the tape connecting assemblies of the two gluing mechanisms approach or move away from each other.

[0027] According to a second aspect of the present application, a battery cell winding device is provided, comprising: an automatic roll changing device as described in any one of the above items.

[0028] The automatic reel-changing device in the embodiments of the present application can automatically start, transfer, and splice the spare reel, thereby applying single-sided tape to the tail end of the working reel and the starting end of the spare reel. This automatically changes reels without the need for manual starting, resulting in a high degree of automation and high production efficiency. The automatic reel-changing device also has the advantages of high splicing accuracy and a small footprint. The battery cell winding equipment, due to the use of the automatic reel-changing device, has the advantage of high battery cell production efficiency.

[0029] 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

[0030] 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.

[0031] FIG1 is a front view of a roll of material.

[0032] FIG. 2 is a left side view of the roll of material in FIG. 1 .

[0033] FIG3 is a diagram showing the working principle of the automatic roll changing device according to an embodiment of the present application, wherein the first material taking member is at the starting position.

[0034] FIG4 is a working principle diagram of the automatic roll changing device according to an embodiment of the present application, wherein the first material taking component and the second material taking component are located at the transfer station, and some structures are omitted in the figure.

[0035] FIG5 is a working principle diagram of the automatic roll changing device according to an embodiment of the present application, in which the working material strip is cut and some structures are omitted in the figure.

[0036] FIG6 is a diagram showing the working principle of the automatic roll changing device according to an embodiment of the present application, wherein the second material taking member is located at the tape splicing station.

[0037] Figure 7 is a working principle diagram of the automatic roll changing device of an embodiment of the present application, in which the starting end of the spare material tape is adsorbed by the tape splicing assembly, and the tail end of the working material tape is adsorbed by another tape splicing assembly. Some structures are omitted in the figure.

[0038] FIG8 is a diagram showing the working principle of the automatic roll-changing device according to an embodiment of the present application, wherein the working material tape and the spare material tape are adsorbed by the same tape splicing assembly.

[0039] FIG9 is a working principle diagram of an automatic roll changing device according to another embodiment of the present application, wherein the first material taking component and the second material taking component are both at the transfer station.

[0040] FIG10 is a working principle diagram of an automatic roll changing device according to another embodiment of the present application, wherein the second material picking member picks up the starting end of the spare material strip from the first material picking member.

[0041] FIG11 is a working principle diagram of an automatic roll changing device according to another embodiment of the present application, in which the second material taking member is flipped.

[0042] FIG12 is a working principle diagram of an automatic roll changing device according to another embodiment of the present application, wherein the second material taking member is at the tape splicing station.

[0043] FIG13 is a working principle diagram of an automatic roll-changing device according to another embodiment of the present application, wherein the working material tape is adsorbed by one tape splicing assembly and the spare material tape is adsorbed by another tape splicing assembly.

[0044] FIG14 is a working principle diagram of an automatic roll-changing device according to another embodiment of the present application, wherein the working material tape and the spare material tape are adsorbed by the same tape splicing assembly.

[0045] FIG15 is a three-dimensional diagram of the starting mechanism according to an embodiment of the present application, in which the first driving member is omitted.

[0046] FIG16 is a perspective view of the first material picking component according to an embodiment of the present application.

[0047] Figure 17 is a three-dimensional diagram of the material belt transfer mechanism of an embodiment of the present application.

[0048] Figure 18 is a rear view of the material belt transfer mechanism of an embodiment of the present application.

[0049] Figure 19 is a front view of the material belt transfer mechanism of an embodiment of the present application.

[0050] FIG20 is a partial enlarged view of the material belt transfer mechanism in FIG19 , mainly showing the structure of the second material picking part.

[0051] Figure 21 is a three-dimensional diagram of a material belt transfer mechanism according to another embodiment of the present application, in which some structures are omitted.

[0052] Figure 22 is a three-dimensional diagram of a material belt transfer mechanism according to yet another embodiment of the present application.

[0053] FIG23 is a partial enlarged view of the material belt transfer mechanism in FIG22 , mainly showing the matching structure between the support rod and the second material picking component.

[0054] FIG24 is a schematic structural diagram of the gluing mechanism according to an embodiment of the present application.

[0055] Figure 25 is a partial three-dimensional view of the glue application mechanism of an embodiment of the present application.

[0056] Figure 26 is a schematic structural diagram of the pressing block and the rubber pulling roller in an embodiment of the present application.

[0057] Figure 27 is a partial schematic diagram of the automatic roll changing device of an embodiment of the present application, which mainly shows the working principles of the first gluing mechanism and the second gluing mechanism.

[0058] FIG. 28 is an enlarged view of the two splice assemblies in FIG. 27 .

[0059] Explanation of reference numerals: 100, automatic roll changing device; 101, first unwinding shaft; 102, second unwinding shaft; 103, second sensor; 104, fourth movable plate; 105, thirteenth driving member; 106, fifth movable plate; 107, fourteenth driving member; 108, waste box; 109, third sensor; 201, working roll; 202, spare roll; 203, working tape; 204, spare tape; 205, roll; 206, sealing Glue; 207, starting end; 300, starting mechanism; 301, mounting base; 302, moving base; 303, first material picking member; 304, first sensor; 305, first driving member; 306, first material picking end; 307, second material picking end; 308, second driving member; 309, first adsorption block; 310, second adsorption block; 311, first vacuum pumping device; 312, second vacuum pumping device; 313, first linear rail; 314, slider; 400, material belt transfer mechanism; 401, second material picking member; 402, fixing plate; 403, through groove; 404, first support; 405, third driving member; 406, fourth driving member; 407, second support; 408, fifth driving member; 409, second linear rail; 410, third linear rail; 411, lead screw; 412, third adsorption block; 413, vacuum tube; 414, third material picking end; 415, fourth material picking end; 416, first surface; 417, second surface; 418, positioning hole; 419, third support; 420, support rod; 421, sixth driving member; 500, glue application mechanism; 501, tape connection assembly; 502, glue preparation assembly; 503, mounting plate; 504, single-sided adhesive material discharge member; 505, single-sided adhesive end retainer; 506, seventh Driving member; 507, first movable plate; 508, third adsorption hole; 509, eighth driving member; 510, second movable plate; 511, glue pulling roller; 512, ninth driving member; 513, first cutter; 514, tenth driving member; 515, pressure block; 516, clamping block; 517, eleventh driving member; 518, tensioning roller; 519, third movable plate; 520, first elastic member; 521, first passing roller; 522, second passing roller; 523, first adsorption hole; 524, twelfth driving member; 525, glue applying member; 526, second adsorption member; 5261, fourth adsorption block; 5262, fifth adsorption block; 527, first adsorption member; 528, second adsorption hole; 529, first glue applying mechanism; 530, second glue applying mechanism; 531, second cutter; 532, second elastic member. DETAILED DESCRIPTION

[0060] 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 arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0061] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0062] 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 part of the specification.

[0063] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0064] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0065] In the following description, each driving member can adopt a power source such as a cylinder, a motor, etc., and a transmission method such as a piston transmission, a gear rack transmission, etc.

[0066] In the following description, the terms tape, reel, starting end, and tail end are only used to describe the working principles of the automatic reel changing device and the battery cell winding equipment, and should not be considered as part of any mechanism, device, or equipment.

[0067] As shown in FIG. 1 and FIG. 2 , the starting end 207 of the material roll 205 is glued with a sealing adhesive 206 .

[0068] For clarity of description, the reel 205 currently being unwound for cell winding is labeled as the working reel 201, the reel 205 not yet unwound for cell winding is labeled as the standby reel 202, the reel currently being wound for cell winding is labeled as the working reel 203, and the reel not yet being wound for cell winding is labeled as the standby reel 204. In the following description, the example of the first unwinding shaft 101 loading the working reel 201 and the second unwinding shaft 102 loading the standby reel 202 is used for explanation. In actual application, the first unwinding shaft 101 can also load the standby reel 202, and the second unwinding shaft 102 can also load the working reel 201.

[0069] In the embodiment shown in FIG. 3 to FIG. 8 , the standby roll 202 rotates clockwise, while in the embodiment shown in FIG. 9 to FIG. 14 , the standby roll 202 rotates counterclockwise.

[0070] As shown in Figures 3 to 28, the automatic roll-changing device 100 in this embodiment includes: a starting mechanism 300, the starting mechanism 300 includes a first material-picking member 303, the first material-picking member 303 can move between the starting station and the transfer station to pick up the starting end 207 of the spare material tape 204 on the spare material roll 202, and drive the starting end 207 of the spare material tape 204 to separate from the spare material roll 202 and move in a direction away from the spare material roll 202; a material tape transfer mechanism 400, the material tape transfer mechanism 400 includes a second The material picking piece 401, the second material picking piece 401 can be moved between the transfer station and the splicing station to transfer the starting end of the spare material tape 204 on the first material picking piece 303 to the splicing station; the gluing mechanism 500, the gluing mechanism 500 includes a splicing component 501, the splicing component is located at the splicing station, and the splicing component 501 can adsorb the starting end 207 of the spare material tape 204 on the second material picking piece 401, so that the single-sided adhesive can bond the tail end of the working material tape 203 and the starting end of the spare material tape 204 together.

[0071] More specifically, as shown in Figure 3 , the first material picking member 303 is located at the starting station, where it picks up the starting end 207 of the spare material tape 204 on the spare material roll 202. As shown in Figure 4 , the first material picking member 303, while still picking up the starting end 207 of the spare material tape 204, moves to the transfer station. During this movement, the first material picking member 303 drives the starting end 207 of the spare material tape 204 to separate from the spare material roll 202 and move it away from the spare material roll 202, thereby tearing the sealing adhesive 206 apart and causing the second unwinding shaft 102 to rotate clockwise, pulling out the spare material tape 204. The rotation of the second unwinding shaft 102 prevents the spare material tape 204 from being torn. At the transfer station, the second material picking member 401 picks up the starting end 207 of the spare material tape 204 from the first material picking member 303. As shown in Figure 5, at the splicing station, two splicing assemblies 501 approach each other, cutting the working tape 203. The tail end of the working tape 203 is then attracted by one splicing assembly 501. The two splicing assemblies 501 then move away from each other. As shown in Figure 6, the second pick-up unit 401 moves to the splicing station, causing the starting end 207 of the spare tape 204 to also reach the splicing station. The two splicing assemblies 501 then approach each other. As shown in Figure 7, the starting end 207 of the spare tape 204 is attracted by the other splicing assembly 501. The two splicing assemblies 501 then move away from each other, and the second pick-up unit 401 leaves the splicing station. The two splicing assemblies 501 then approach each other. As shown in Figure 8, the starting end 207 of the spare tape 204 and the tail end of the working tape 203 are attracted by the same splicing assembly 501. The two splicing assemblies 501 then move away from each other, while the other splicing assembly prepares the single-sided tape. The two splicing assemblies 501 then approach each other, with the other splicing assembly 501 applying single-sided tape to bond the trailing end of the working tape 203 to the leading end 207 of the backup tape 204. Next, the working tape 203 and the backup tape 204 are held by the splicing assembly 501 on the left (not shown), while the splicing assembly 501 on the right applies single-sided tape to the trailing end of the working tape 203 and the other side of the backup tape 204. Finally, both splicing assemblies 501 no longer hold the working tape 203 and the backup tape 204, and the second unwinding shaft 102 continues unwinding the tape, completing the reel change.

[0072] From the above description, it can be seen that from the entire process of starting, transporting to splicing, no human intervention is required, and the working material tape and the spare material tape can be bonded using single-sided tape, which has high work efficiency and high splicing accuracy.

[0073] As shown in Figures 3, 4, 8, 15 and 16, the starting mechanism in this embodiment includes: a mounting seat 301; a movable seat 302, the movable seat 302 slidingly cooperates with the mounting seat 301, the movable seat 302 is installed with a first material picking member 303, the first material picking member 303 is used to pick up the starting end 207 of the spare material tape 204 on the spare material roll 202; a first driving member 305, the first driving member 305 can drive the movable seat 302 to move so that the first material picking member 303 moves between the starting station and the transfer station (moves along the third direction shown in Figure 3).

[0074] More specifically, the movable seat 302 can achieve sliding cooperation with the mounting seat 301 through structures such as slide rails and guide rods. The first material picking member 303 can generate negative pressure by connecting to a vacuum mechanism, thereby adsorbing the starting end 207, or clamping the starting end 207 through a clamping mechanism, thereby picking up the starting end 207. During operation, the first material picking member 303 picks up the starting end 207 of the spare material tape 204 on the spare material roll 202 by adsorption, grasping, etc., and then the first driving member 305 drives the movable seat 302 to move. Since the first material picking member 303 remains in the state of picking up the starting end 207, the movable seat 302 will cause the first material picking member 303 to drive the starting end 207 of the spare material tape 204 to separate from the spare material roll 202 during the movement of the movable seat 302, thereby tearing the sealing glue 206. The first material picking member 303 continues to move away from the spare material roll 202, and the second unwinding shaft 102 rotates to unwind the spare material tape 204. The spare material tape 204 is pulled out from the spare material roll 202 so as to be subsequently connected to the working material tape 203. The rotation of the second unwinding shaft 102 can prevent the spare material tape 204 from being torn during the pulling process.

[0075] As can be seen from the above description, the unwinding process of the standby material roll 202 does not require manual intervention, and the first material taking component 303 automatically tears off the sealing glue 206, thereby improving the unwinding efficiency.

[0076] As shown in FIG8 , the first material pickup member 303 has a first material pickup end 306 and a second material pickup end 307, which are opposite to each other. More specifically, when the first unwinding shaft 101 is loaded with a spare material roll 202, the first material pickup end 306 is used to pick up the starting end 207 of the spare material tape 204 on the spare material roll 202 loaded on the first unwinding shaft 101; when the second unwinding shaft 102 is loaded with a spare material roll 202, the second material pickup end 307 is used to pick up the starting end 207 of the spare material tape 204 on the spare material roll 202 loaded on the second unwinding shaft 102. In this way, the movement of the movable base 302 can pick up the starting end 207 of the spare material tape 204 on the spare material roll 202 on both sides, providing high versatility. The first material pickup end 306 and the second material pickup end 307 can pick up the starting end 207 through vacuum suction, grabbing, or other methods.

[0077] As shown in Figures 3 and 15, the starting mechanism 300 also includes a first sensor 304, which is used to detect the position of the starting end 207 of the spare material tape 204 on the spare material roll 202. The first driving member 305 drives the movable seat 302 to move according to the starting end position signal detected by the first sensor 304, so that the first material picking member 303 reaches the position of picking up the starting end 207 of the spare material tape 204 on the spare material roll 202.

[0078] More specifically, during the rotation of the second unwinding shaft 102, the first sensor 304 can detect the position of the starting end 207 of the spare material tape 204 on the spare material roll 202 by identifying the color, image, etc. of the sealing adhesive 206, and determine whether the starting end 207 has reached a position range that can be picked up by the first material picking member 303. If the starting end 207 is detected to have reached a position range that can be picked up by the first material picking member 303, the first sensor 304 will send a starting end position signal, and the first driving member 305 will drive the movable base 302 to move toward the direction close to the spare material roll 202 according to the starting end position signal detected by the first sensor 304, so that the first material picking member 303 reaches a position for picking up the starting end 207 of the spare material tape 204 on the spare material roll 202, and the first material picking member 303 picks up the starting end 207. The first driving member 305 can be fixed on the mounting base 301, or fixed at other suitable positions. For example, in this embodiment, the first driving member 305 is a motor screw transmission assembly, the motor is fixedly mounted on the mounting base 301, the output shaft of the motor drives the screw to rotate, and the screw then cooperates with the nut thread on the movable base 302, or directly cooperates with the threaded hole on the movable base 302, so as to drive the movement of the movable base 302.

[0079] More specifically, the first sensor 304 may be a color sensor, an image sensor, or a combination of multiple sensors.

[0080] The color sensor may be, for example, an integrated light-to-voltage converter or an integrated light-to-frequency converter to identify the color of the sealing adhesive 206, thereby identifying the position of the starting end 207 of the spare material tape 204 on the spare material reel 202. The image sensor may be, for example, a CCD camera or a CMOS camera to identify the shape of the starting end 207 of the spare material tape 204 on the spare material reel 202, thereby identifying the position of the starting end 207.

[0081] As shown in FIG15 , the first sensor 304 is mounted on the movable base 302 , and the movable base 302 is equipped with a second driving member 308 . The second driving member 308 drives the first sensor 304 to rotate toward the first material collecting end 306 or the second material collecting end 307 .

[0082] More specifically, when the first material picking end 306 is needed to pick up the starting end of the spare material tape 204 on the spare material roll 202 loaded on the first unwinding shaft 101, the second driving member 308 drives the first sensor 304 to rotate toward the first material picking end 306 to detect the starting end position of the spare material tape 204 on the spare material roll 202; when the second material picking end 307 is needed to pick up the starting end of the spare material tape 204 on the spare material roll 202 loaded on the second unwinding shaft 102, the second driving member 308 drives the first sensor 304 to rotate toward the second material picking end 307 to detect the starting end position of the spare material tape 204 on the spare material roll 202. In this way, a single first sensor 304 can be used to detect the starting end position of the spare material tape 204 on the spare material rolls 202 on both sides of the starting mechanism, which is more cost-effective, and the first sensor 304 moves with the movable base 302, so the position sensitivity is higher.

[0083] In practical applications, the first sensor 304 can also be installed at other locations suitable for detecting the starting end 207 of the spare material tape 204 on the spare material roll 202 .

[0084] As shown in Figure 16, this embodiment specifically describes a suction-type first material picking component 303. The first material picking end 306 of the first material picking component 303 has a first adsorption block 309 and a second adsorption block 310 spaced apart from each other in the first direction. The adsorption holes on the first adsorption block 309 are connected to the first vacuum pumping device 311 (represented by a vacuum pumping hole in Figure 16), and the adsorption holes on the second adsorption block 310 are connected to the second vacuum pumping device 312 (represented by a vacuum pumping hole in Figure 16). The first vacuum pumping device 311 and the second vacuum pumping device 312 can work independently. This structure can improve the reliability of the first material picking component 303 picking up the starting end 207 of the material belt. If the vacuuming capacity of one vacuum pumping device is insufficient or fails, the other vacuum pumping device can also maintain adsorption on the spare material belt 204.

[0085] Similarly, the second reclaiming end 307 can also include a first adsorption block 309 and a second adsorption block 310 spaced apart from each other in the first direction. The adsorption holes on the first adsorption block 309 are connected to a first vacuum pumping device 311, and the adsorption holes on the second adsorption block 310 are connected to a second vacuum pumping device 312. The first vacuum pumping device 311 and the second vacuum pumping device 312 can operate independently. Alternatively, the first reclaiming end 306 and the second reclaiming end 307 can each adopt other structures.

[0086] In practice, the first direction refers to the lengthwise direction of the spare material strip 204 adsorbed by the first material picker end 306 or the second material picker end 307. The advantage of spacing the first adsorption blocks 309 and the second adsorption blocks 310 in the first direction is that the first material picker 303 is simple to manufacture. Compared to spacing along the width of the material strip, the first adsorption blocks 309 and the second adsorption blocks 310 only need to be machined with a smaller number of adsorption holes to meet the material strip adsorption requirements. Furthermore, the first vacuuming device 311 and the second vacuuming device 312 can be connected on the same side of the first material picker 303, resulting in simple manufacturing and a compact layout.

[0087] As shown in Figure 15, the mounting base 301 is mounted with a first linear rail 313, and the movable base 302 is mounted with a slider 314, which slides in engagement with the first linear rail 313. This linear motion accommodates a wider range of roll diameters than swing arm motion, as the movable base 302 only needs to perform translational motion beneath the backup roll 202 and the working roll 201.

[0088] As shown in Figures 3, 4 and 15, in this embodiment, the first unwinding shaft 101 is rotating to unwind the working material tape 203, and the working material tape 203 is being transported toward the winding needle (not shown) for battery cell winding. The second unwinding shaft 102 is loaded with a spare material roll 202. After the second unwinding shaft 102 rotates clockwise until the sealing glue 206 of the spare material roll 202 enters the detection range of the first sensor 304, the first sensor 304 can detect the starting end position of the spare material tape 204 on the spare material roll 202 by identifying the sealing glue 206. Alternatively, by controlling the rotation angle of the second unwinding shaft 102, it is ensured that the starting end 207 of the spare material tape 204 on the spare material roll 202 reaches the starting position. Next, the first drive member 305 drives the movable base 302 toward the backup material roll 202 (correspondingly away from the working material roll 201), and the second material pickup end 307 of the first material pickup member 303 picks up the starting end 207 at the starting station. Next, the first drive member 305 drives the movable base 302 toward the direction away from the backup material roll 202 (correspondingly toward the working material roll 201), and the sealing adhesive 206 is torn off. As the starting end 207 moves away from the backup material roll 202, the second unwinding shaft 102 rotates and unwinds the backup material strip 204. The first material pickup member 303 pulls out the backup material strip 204, facilitating the subsequent connection between the working material strip 203 and the backup material strip 204, completing the roll change. The entire roll change process does not require manual tearing of the sealing adhesive 206, which improves roll change efficiency.

[0089] When the working material roll on the second unwinding shaft 102 is about to be unwound, the first unwinding shaft 101 rotates until the sealing adhesive 206 of the spare material roll 202 enters the detection range of the first sensor 304. The first sensor 304 can detect the starting end of the spare material tape 204 on the spare material roll 202 by identifying the sealing adhesive 206. Then, the first driving member 305 drives the movable base 302 to move toward the spare material roll 202 (correspondingly away from the working material roll 201), and the first picking end 306 of the first picking member 303 picks up the starting end 207. Then, the first driving member 305 drives the movable seat 302 to move in the direction away from the spare material roll 202 (correspondingly close to the working material roll 201), the sealing glue 206 is torn off, the first unwinding shaft 101 rotates to unwind the spare material tape 204, and the first material picking member 303 pulls out the spare material tape 204, so that the working material tape 203 and the spare material tape 204 can be connected at the tape connection assembly to complete the roll change.

[0090] In other words, the movable seat 302 drives the first material picking part 303 to move back and forth between the first unwinding shaft 101 and the second unwinding shaft 102, approaching the first unwinding shaft 101 and the second unwinding shaft 102 respectively, and can tear off the sealing glue 206 on the spare material roll 202 on the first unwinding shaft 101 and the second unwinding shaft 102 respectively, with a high degree of automation and small space occupation.

[0091] The first driving member 305 can drive the movable seat 302 to move between the first unwinding shaft 101 and the second unwinding shaft 102 in either a translational or a curved manner, as long as the first material picking member 303 can reach the position where it picks up the starting end 207 of the spare material tape 204 on the spare material roll 202. In this embodiment, the first driving member 305 drives the movable seat 302 to move translationally between the first unwinding shaft 101 and the second unwinding shaft 102. This structure can save space and avoid the material rolls on the first unwinding shaft 101 and the second unwinding shaft 102 as much as possible, thereby accommodating a wider range of material roll sizes.

[0092] More specifically, the translational movement can be achieved by cooperating the first linear rail 313 with the slider 314, or by providing a slide groove on the mounting base 301, or by converting the motor rotation into translational movement through a lead screw structure.

[0093] In this embodiment, when the first sensor 304 detects the starting end position of the spare material tape 204 on the spare material roll 202, the first unwinding shaft 101 or the second unwinding shaft 102 loaded with the spare material roll 202 stops rotating or stops rotating after rotating a predetermined angle according to the starting end position signal until the position of the sealing glue 206 can be aligned with the first material picking member 303. This helps the first material picking member 303 pick up the starting end 207 more accurately and improves the accuracy of subsequent tape splicing. Whether the first unwinding shaft 101 or the second unwinding shaft 102 stops rotating, and the predetermined rotation angle required, can be pre-calibrated through testing. The first unwinding shaft 101 or the second unwinding shaft 102 can rotate or stop rotating according to the calibration.

[0094] As shown in Figure 3, the automatic roll changing device also includes a second sensor 103, which is used to detect the diameter of the spare material roll 202. The first driving member 305 drives the movable seat 302 to move to a predetermined position according to the diameter signal detected by the second sensor 103, so that the starting end 207 of the spare material tape 204 on the spare material roll 202 can enter the detection range of the first sensor 304.

[0095] More specifically, the second sensor 103 can indirectly obtain the diameter of the spare material roll 202 based on the position signal of the edge of the spare material roll 202, or use ultrasonic detection to obtain the diameter of the spare material roll 202. Then, the first driving member 305 drives the movable base 302 to a predetermined position based on the diameter signal detected by the second sensor 103. The predetermined position can be a position pre-calibrated according to different diameters. Since the detection range of the first sensor 304 itself is limited, after entering the predetermined position, it can ensure that the starting end of the spare material tape 204 on the spare material roll 202 can enter the detection range of the first sensor 304, thereby ensuring that the sealing glue 206 can be detected, and the problem of the first sensor 304 being too far away from the spare material roll 202 and unable to detect the starting end position will not occur.

[0096] As shown in Figures 3 and 17 to 23, the material belt transfer mechanism 400 in this embodiment also includes: a fixed plate 402; a first support 404, the first support 404 is installed on the fixed plate 402 and can move along the first direction, the second material picking member 401 is installed on the first support 404 and can move along the second direction; a third driving member 405, the third driving member 405 is used to drive the first support 404 to move to drive the second material picking member 401 to move between the transfer station and the belt connecting station; the first direction intersects with the second direction.

[0097] More specifically, as shown in Figures 3 and 17, the up-down direction on the paper is marked as the first direction, and the second direction is the direction perpendicular to the paper. Alternatively, the first and second directions can also form an angle of other angles, and the two directions are not parallel. The first support 404 is slidably engaged with the fixed plate 402 via a third linear rail 410 mounted on the fixed plate 402. The third linear rail 410 extends along the first direction, or the first support 404 is moved along the first direction via other transmission mechanisms such as a rack. The second material picking member 401 can pick up the starting end 207 of the material strip by suction, clamping, etc. The second material picking member 401 is mounted on the first support 404 and can move along the second direction. That is, if the second surface 417 of the fixed plate 402 is used as a reference, the second material picking member 401 can have a length in the second direction that is farther away from the second surface 417, or a length in the second direction that is closer to the second surface 417. In this way, when the material strip needs to be transferred, the second picking member 401 moves in the second direction, farther away from the second surface 417, to pick up and transfer the material strip. When the material strip does not need to be transferred, the second picking member 401 moves in the second direction, closer to the second surface 417, avoiding other mechanisms and saving space. The third driving member 405, which can be a motor, cylinder, etc., is used to drive the first support 404 to move in the first direction. The movement of the first support 404 drives the second picking member 401 to move in the first direction to reach the transfer station or the tape connection station. The third driving member 405 can be mounted on the fixed plate 402 or other suitable location.

[0098] Therefore, the second pick-up member 401 can transfer the starting end 207 of the material strip from the transfer station to the tape splicing station without manual threading, thereby improving the degree of automation and production efficiency. The second pick-up member 401 can extend from the through slot 403 or retract in the second direction, avoiding the operation of other mechanisms and occupying less space.

[0099] In this embodiment, the fixing plate 402 is provided with a through slot 403 extending along the first direction, and the second picking member 401 can extend out of the through slot 403 along the second direction.

[0100] More specifically, the through slot 403 extends along the first direction, which means that the first direction is the length direction of the through slot 403. Since the through slot 403 also extends along the first direction, the movement of the first support 404 along the first direction can drive the second material picking member 401 to move in the first direction. The second material picking member 401 can extend from the through slot 403 along the second direction, which means that the second material picking member 401 can also be retracted along the second direction, either partially or completely. In this way, when the material belt needs to be transferred, the second material picking member 401 extends from the through slot 403 along the second direction. When the material belt does not need to be transferred, the second material picking member 401 is retracted to avoid the operation of other mechanisms and save space. The design of the through slot 403 can protect the various driving mechanisms of the second material picking member 401 and prevent the various driving mechanisms of the material belt transfer mechanism 400 from interfering with the flatness of the material belt itself during operation.

[0101] As shown in FIG. 17 , the material belt transport mechanism 400 further includes a fourth driving member 406 , which is configured to drive the second material picking member 401 to rotate around the axis L of the second material picking member 401 .

[0102] More specifically, the fourth drive member 406 can be a motor capable of directly outputting rotational motion, or a mechanism utilizing a rack and pinion mechanism to convert the linear motion of a cylinder into rotational motion, and is used to drive the second pick-up member 401 to rotate about its axis L. The fourth drive member 406 can be mounted on the first support 404 or other suitable location. In this way, the second pick-up member 401 is suitable for clockwise and counterclockwise rotation of the standby material roll 202, and is also suitable for the configuration of the first unwinding shaft 101 and the second unwinding shaft 102 described below.

[0103] As shown in Figures 17 and 18, the material belt transfer mechanism 400 in this embodiment also includes: a second support 407, which is installed on the first support 404 and can move along the second direction, and the second material picking member 401 is installed on the second support 407; a fifth driving member 408, which is used to drive the second support 407 to move to adjust the position of the second material picking member 401 in the second direction.

[0104] More specifically, in this embodiment, the second support 407 slides with the first support 404 via a second linear rail 409, which is mounted on the first support 404 and extends along the second direction. The second support 407 can also move along the second direction by, for example, a belt drive or a rack drive. The second material picking member 401 is mounted on the second support 407. Since the second support 407 is mounted on the first support 404, it can be considered that the second material picking member 401 is indirectly mounted on the first support 404. The fifth driving member 408 can be a driving mechanism such as a motor or a cylinder, which drives the second support 407 to move along the second direction. Therefore, after the second material picking member 401 passes through the through slot 403, its position in the second direction can be adjusted. The fifth driving member 408 can be mounted on the first support 404 or other suitable location. In this embodiment, the third driving member 405 is mounted on the fixing plate 402 , the fourth driving member 406 is mounted on the second support 407 , and the fifth driving member 408 is mounted on the first support 404 .

[0105] The advantage of this structure is that the second material picking member 401 has the freedom to translate along the second direction, which can achieve alignment of the edges of the spare material strip 204 and the working material strip 203 .

[0106] In the embodiment shown in Figure 17, the fifth driving member 408 is started by a cylinder, while in another embodiment shown in Figure 21, the fifth driving member 408 includes a servo motor, which is fixedly mounted on the first support 404. The servo motor drives the second support 407 to move to adjust the position of the spare material belt 204 on the second material picking member 401 in the second direction.

[0107] The servo motor has higher precision and can accurately control the position of the second material picking component 401 in the second direction, so the adjustment of the position of the spare material belt 204 in the second direction is more precise.

[0108] As shown in FIG. 17 , the first support 404 is slidably connected to the fixed plate 402 , and the third driving member 405 includes a motor fixedly mounted on the fixed plate 402 . The motor drives the first support 404 to move via a screw rod 411 .

[0109] More specifically, the first support 404 and the fixed plate 402 are slidably connected via a third linear rail 410, or alternatively, via a sliding groove. The third driving member 405 comprises a motor, the housing of which is fixedly mounted on the fixed plate 402. The motor drives a screw rod 411 to rotate, which in turn drives the first support 404 to move in the first direction via a threaded member connected to the first support 404, or via threads formed directly into an internally threaded hole in the first support 404. This structure enables the second picking member 401 to move in the first direction with greater precision.

[0110] As shown in FIG. 17 and FIG. 21 , the second material-picking member 401 includes a third adsorption block 412 . The third adsorption block 412 is provided with adsorption holes, and the adsorption holes are connected to a vacuum device (not shown).

[0111] More specifically, this embodiment illustrates a suction-type second material pickup component 401. The second material pickup component 401 includes a third suction block 412, with suction holes on the third suction block 412 connected to a vacuum pump via a vacuum tube 413. When the vacuum pump is operating, negative pressure is generated at the suction holes on the third suction block 412, thereby adsorbing the material strip onto the third suction block 412. This structure minimizes damage to the material strip during transport. The second material pickup component 401 can also employ other methods, such as grippers, to pick up the starting end 207 of the material strip.

[0112] As shown in FIG. 11 , FIG. 19 and FIG. 20 , the second material picking member 401 has a third material picking end 414 and a fourth material picking end 415 , and the third material picking end 414 and the fourth material picking end 415 are disposed opposite to each other.

[0113] More specifically, the third pick-up end 414 and the fourth pick-up end 415 can both pick up the web by suction or by gripping. The third pick-up end 414 and the fourth pick-up end 415 are disposed opposite each other, with one facing the first unwinding shaft 101 and the other facing the second unwinding shaft 102, allowing the two unwinding shafts to switch between loading the working web 201 and the standby web 202.

[0114] As shown in FIG. 18 and FIG. 19 , the fixing plate 402 has a first surface 416 and a second surface 417 opposite to each other, and the through slot 403 passes through the first surface 416 and the second surface 417 .

[0115] As shown in Figures 22 and 23, the fixed plate 402 is fixedly installed with a third support 419, and the third support 419 is installed with a support rod 420 and a sixth driving member 421. The top of the second material picking member 401 is provided with a positioning hole 418, and the sixth driving member 421 can drive the support rod 420 to cooperate with the positioning hole 418.

[0116] More specifically, since the second material picking member 401 needs to have a certain length in the second direction, a cantilever is formed. At the transfer station shown in Figure 4, the second material picking member 401 and the first material picking member 303 need to press against each other to transfer the spare material belt 204 from the first material picking member 303 to the second material picking member 401, which makes the second material picking member 401 easily deformed by the pressure. Therefore, this embodiment provides a third support 419 and a support rod 420. After the support rod 420 cooperates with the positioning hole 418 at the top of the second material picking member 401, the support rod 420 provides support for the second material picking member 401, which can improve the resistance of the second material picking member 401 to pressure, protect the second material picking member 401, and prevent the second material picking member 401 from deforming and affecting the accuracy of subsequent tape splicing. After the second picking component 401 picks up the spare material strip 204 from the first picking component 303 , the sixth driving component 421 drives the support rod 420 to separate from the positioning hole 418 , and the second picking component 401 moves along the first direction to transfer the material strip.

[0117] As shown in Figure 3, the automatic roll changing device 100 also includes a third sensor 109, which is used to detect the edges of the working material strip 203 and the spare material strip 204. The fifth driving member 408 of the material strip transfer mechanism 400 drives the second support 407 to move according to the edge signal detected by the third sensor 109 to adjust the position of the second material picking member 401 in the second direction so that the edge of the working material strip 203 is aligned with the edge of the spare material strip 204.

[0118] More specifically, as shown in Figures 3 and 8, when the working material tape 203 and the spare material tape 204 are bonded together, since the second material picking part 401 initially picks up the starting end 207 of the material tape from the first material picking part 303, the picking position does not necessarily ensure that the edge of the spare material tape 204 is aligned with the working material tape 203. If they are not aligned, the spare material tape 204 and the working material tape 203 will be misaligned in the width direction (i.e., the second direction) after the tapes are connected. Therefore, a third sensor 109 is required to detect the edges of the working material tape 203 and the spare material tape 204, and then transmit the edge signal to the fifth driving member 408. The fifth driving member 408 drives the second support 407 to move in the second direction according to the distance between the edge of the working material tape 203 and the edge of the spare material tape 204, and adjusts the position of the second material picking member 401 in the second direction. The second material picking member 401 accordingly drives the spare material tape 204 to move in the second direction to adjust the position of the spare material tape 204 in the second direction until the edge of the working material tape 203 is aligned with the edge of the spare material tape 204.

[0119] As shown in Figures 3 and 24, the adhesive application mechanism 500 in this embodiment further includes an adhesive preparation assembly 502. The tape splicing assembly 501 includes an adhesive application member 525, which includes a first adsorption member 527 and a second adsorption member 526. The first adsorption member 527 is used to absorb the single-sided adhesive, and the second adsorption member 526 is used to absorb the material tape. The adhesive preparation assembly 502 is used to place a section of the single-sided adhesive on the first adsorption member 527.

[0120] More specifically, the first adsorption component 527 adsorbs the single-sided adhesive, and the second adsorption component 526 adsorbs the material tape (e.g., electrode, diaphragm). The adhesive preparation component 502 can place a section of single-sided adhesive on the first adsorption component 527. The specific adhesive preparation method can adopt the scheme shown in Figures 24 to 26, or other suitable schemes can be adopted, such as using a pair of clamps to pull a section of single-sided adhesive and then place it on the first adsorption component 527 and then cut it. Since the adhesive preparation component 502 can place a section of single-sided adhesive on the first adsorption component 527, manual adhesive preparation is no longer required during the splicing process. The adhesive application component 525 has both the function of adsorbing single-sided adhesive and the function of adsorbing material tape, which improves the degree of automation and splicing efficiency, and requires less space during the splicing process.

[0121] As shown in FIG. 24 to FIG. 26 , this embodiment provides a specific structure of a glue application mechanism 500 .

[0122] The adhesive preparation assembly 502 includes a mounting plate 503, mounted with a rotatable single-sided adhesive feeder 504, a single-sided adhesive end retainer 505, and a seventh drive member 506. The single-sided adhesive feeder 504 is used to load a roll of single-sided adhesive, the single-sided adhesive end retainer 505 is used to hold the end of the single-sided adhesive, and the seventh drive member 506 is used to drive a first movable plate 507 to move in a second direction toward or away from the single-sided adhesive end retainer 505. The first movable plate 507 is mounted with an eighth drive member 509, which is connected to a second movable plate 510. The second movable plate 510 is mounted with a rotatable adhesive roller 511 for winding the single-sided adhesive. The eighth drive member 509 is used to drive the adhesive roller 511 to move in a first direction toward or away from the single-sided adhesive end retainer 505; the first direction intersects the second direction.

[0123] More specifically, after being mounted on the mounting plate 503, the single-sided tape unwinding member 504 can rotate freely or be driven by a driving mechanism to rotate, thereby unwinding the single-sided tape roll and feeding the tape toward the single-sided tape end retaining member 505. The single-sided tape end retaining member 505 can retain the end of the tape by suction or other means. For example, if a suction-type structure is employed, the single-sided tape end retaining member 505 can absorb the end of the tape. The seventh driving member 506 is used to drive the first movable plate 507 to move in the second direction to move closer to or away from the single-sided adhesive tape end retainer 505. The eighth driving member 509 is mounted on the first movable plate 507 and can drive the second movable plate 510 to move in the first direction. For example, the eighth driving member 509 uses a cylinder, with the cylinder's piston rod connected to the first movable plate 507 and the cylinder body connected to the second movable plate 510, or the cylinder's piston rod connected to the second movable plate 510 and the cylinder body connected to the first movable plate 507. In this way, the expansion and contraction of the piston rod can enable the second movable plate 510 to move in the first direction. The adhesive roller 511 is mounted on the second movable plate 510 and can rotate freely or be driven to rotate by the driving member. The first direction intersects with the second direction. In this way, the seventh driving member 506 can drive the adhesive roller 511 to move in the second direction to move closer to or away from the single-sided adhesive tape end retainer 505, and the eighth driving member 509 can drive the adhesive roller 511 to move in the first direction to abut against or away from the single-sided adhesive tape end retainer 505.

[0124] When needing to prepare glue, the seventh driving member 506 drives the first movable plate 507 to move along the second direction so that the glue roller 511 is close to the single-sided adhesive end retaining member 505, and "close" here refers to that the distance between the first movable plate 507 and the single-sided adhesive end retaining member 505 in the second direction becomes smaller. After the glue roller 511 arrives above the single-sided adhesive end retaining member 505, the eighth driving member 509 drives the second movable plate 510 to move along the first direction so that the glue roller 511 abuts the single-sided adhesive end on the single-sided adhesive end retaining member 505 (this moment can be regarded as the glue roller 511 abutting the single-sided adhesive end retaining member 505), so that the glue roller 511 can press the single-sided adhesive end. Then the seventh driving member 506 continues to drive the first movable plate 507 to move along the second direction (this moment still keeping the original moving direction to move), and the glue roller 511 rotates, and the single-sided adhesive is attached to the roller surface of the glue roller 511, so the glue roller 511 winds a section of single-sided adhesive. The adhesive tape end retainer 505 then stops retaining the adhesive tape end. The eighth drive member 509 drives the second movable plate 510 away from the adhesive tape end retainer 505 in the first direction, thereby also moving the adhesive roller 511 away from the adhesive tape end retainer 505. The seventh drive member 506 then drives the first movable plate 507 away from the adhesive tape end retainer 505 in the second direction. The adhesive tape unwinding member 504 rotates, pulling the adhesive tape to a predetermined length. After the first movable plate 507 reaches the predetermined position, the eighth drive member 509 drives the second movable plate 510 toward the adhesive tape end retainer 505 in the first direction. "Accresponding" here refers to decreasing the distance between the adhesive roller 511 and the adhesive tape end retainer 505 in the first direction. The adhesive tape end retainer 505 and the first suction member 527 operate to hold the tape section, while the adhesive roller 511 unwinds the wound tape section. After the first cutter 513 cuts the tape, the tape section is placed on the first suction member 527. The tape splicing assembly 501 can use the second adsorption member 526 to adsorb the material tape and use the first adsorption member 527 to apply glue, thereby realizing automatic glue preparation and tape splicing without manual operation, improving the splicing efficiency, and having a compact structure.

[0125] Finally, the eighth driving member 509 drives the second movable plate 510 in the first direction away from the one-sided adhesive tape end retaining member 505 to enter the next adhesive preparation cycle.

[0126] As shown in FIG24 , the mounting plate 503 is further mounted with a ninth driving member 512 for driving a first cutter 513 to cut the single-sided adhesive tape. The first cutter 513 is located between the single-sided adhesive tape end retainer 505 and the adhesive tape 525 .

[0127] More specifically, a gap can exist between the single-sided adhesive tape end retainer 505 and the adhesive application member 525. The ninth driving member 512 drives the first cutter 513 to cut the single-sided adhesive tape between the single-sided adhesive tape end retainer 505 and the adhesive application member 525. In this way, a section of the single-sided adhesive tape can be placed on the first adsorbent member 527, while the new end of the cut single-sided adhesive tape is retained by the single-sided adhesive tape end retainer 505. The entire structure is compact and space utilization is high. The ninth driving member 512 and the first cutter 513 can also be installed in other suitable locations.

[0128] As shown in FIG. 24 to FIG. 26 , the second movable plate 510 is further mounted with a tenth driving member 514 , and the tenth driving member 514 is used to drive a pressing block 515 to clamp the rubber-pulling roller 511 or release the rubber-pulling roller 511 .

[0129] More specifically, during the glue preparation process, after the single-sided adhesive tape is attached to the roller surface of the glue roller 511 and wound by the glue roller 511, the tenth driving member 514 drives the pressing block 515 to clamp the glue roller 511, so that the glue roller 511 can no longer rotate, so that the single-sided adhesive tape will not fall off the glue roller 511 during the subsequent process of moving away from the single-sided adhesive tape end retaining member 505 along the second direction. When the glue roller 511 needs to place the single-sided adhesive tape on the first adsorption member 527 to flatten the wound single-sided adhesive tape, the tenth driving member 514 drives the pressing block 515 to release the glue roller 511, so that the glue roller 511 can rotate freely, so that the single-sided adhesive tape attached and wound on the roller surface of the glue roller 511 can be flattened, ensuring the flatness when the single-sided adhesive tape is subsequently attached to the material strip.

[0130] As shown in Figure 24, the single-sided adhesive tape is conveyed from the single-sided adhesive tape discharge piece 504 to the single-sided adhesive tape end retaining piece 505. On the conveying path of the single-sided adhesive tape, a clamping block 516 is also arranged between the single-sided adhesive tape discharge piece 504 and the single-sided adhesive tape end retaining piece 505. The clamping block 516 is driven by the eleventh driving piece 517 to clamp or release the single-sided adhesive tape.

[0131] More specifically, the eleventh driving member 517 can be a clamping cylinder, and the clamping blocks 516 can be a pair of clamping jaws of the clamping cylinder. Alternatively, the eleventh driving member 517 can be another power source, and the clamping blocks 516 can be a pair of sliders that are driven toward or away from each other by the eleventh driving member 517. Before the first cutter 513 cuts the one-sided adhesive tape, the eleventh driving member can drive the clamping blocks 516 to clamp the one-sided adhesive tape. This ensures that the one-sided adhesive tape is not pulled out of a new section by the first cutter 513 when it is cut, and the one-sided adhesive tape remains flat, preventing excessive length of the tape from being left when the tape is subsequently bonded.

[0132] As shown in Figure 24, on the conveying path of the single-sided adhesive, a tensioning roller 518 is also arranged between the single-sided adhesive discharge part 504 and the clamping block 516. The tensioning roller 518 is installed on the third movable plate 519. The third movable plate 519 is slidably matched with the mounting plate 503. A first elastic member 520 is arranged between the third movable plate 519 and the mounting plate 503 to provide tensioning force.

[0133] More specifically, on the conveying path of the single-sided adhesive tape, it is necessary to bypass the tensioning roller 518. The tensioning roller 518 relies on the tensioning force of the first elastic member 520 to always keep the single-sided adhesive tape in a tensioned state, thereby ensuring that the single-sided adhesive tape is flat and wrinkle-free, thereby improving the quality of subsequent tape splicing.

[0134] As shown in Figure 1, along the single-sided tape conveying path, a first roller 521 and a second roller 522 are respectively provided upstream and downstream of the tensioning roller 518. These two rollers are used to change the conveying direction of the single-sided tape and ensure that the tape is as flat as possible between the single-sided tape end retainer 505 and the adhesive roller 511.

[0135] As shown in Figure 24, this embodiment shows an adsorption-type single-sided adhesive tape end retainer 505. The single-sided adhesive tape end retainer 505 has a first adsorption hole 523, which is used to adsorb the single-sided adhesive tape, thereby retaining the end of the single-sided adhesive tape on the single-sided adhesive tape end retainer 505.

[0136] More specifically, the first adsorption hole 523 may be connected to a negative pressure mechanism, so that the single-sided tape is adsorbed onto the single-sided tape end retainer 505 by forming a negative pressure near the first adsorption hole 523 .

[0137] As shown in FIG. 27 , the tape splicing assembly 501 of this embodiment includes a twelfth driving member 524 , which can drive the glue applying member 525 to flip, so that the first adsorption member 527 is in a glue preparation state or a tape splicing state.

[0138] More specifically, the twelfth driving member 524 can drive the glue-applying member 525 to flip by hingedly connecting the piston rod of a cylinder to the glue-applying member 525, or by connecting the glue-applying member 525 to the motor output shaft. In Figures 24 and 27, the first suction member 527 is in a glue-ready state. In this state, the glue-ready assembly 502 can place a section of single-sided tape on the first suction member 527, and the second suction member 526 can absorb the working material strip 203 and / or the spare material strip 204. After the twelfth driving member 524 drives the gluing member 525 to flip, the first adsorption member 527 will be in a connected state. At this time, the first adsorption member 527 faces the third direction. At this time, the second adsorption member 526 of the other relative gluing mechanism 500 adsorbs the tail end of the working material tape and the starting end of the spare material tape. The first adsorption member 527 of one gluing mechanism 500 is close to the second adsorption member 526 of the other gluing mechanism 500, so that the single-sided adhesive bonds the tail end of the working material tape and the starting end of the spare material tape together.

[0139] From the above description, it can be seen that the glue preparation, material absorption and bonding of the glue mechanism in this embodiment do not require any human intervention, have a high degree of automation and high efficiency in splicing, and can be achieved by flipping the glue sticking part 525, taking up little space.

[0140] As shown in Figure 24, when the first adsorption member 527 is in the glue preparation state, the adsorption surface of the first adsorption member 527 is flush with the adsorption surface of the single-sided adhesive end retainer 505 of the glue preparation assembly 502. In this article, flush can mean that the adsorption surface of the first adsorption member 527 and the adsorption surface of the single-sided adhesive end retainer 505 are in the same plane, or it can mean that the adsorption surface of the first adsorption member 527 is slightly higher or slightly lower than the adsorption surface of the single-sided adhesive end retainer 505. For example, the adsorption surface of the first adsorption member 527 is 1mm or 3mm higher than the adsorption surface of the single-sided adhesive end retainer 505, or 1mm or 3mm lower than the adsorption surface of the single-sided adhesive end retainer 505. This height difference is within the allowable error range and can be regarded as the two adsorption surfaces being flush. The flushing of the two adsorption surfaces can ensure that the single-sided adhesive is more flat and the intercepted length is more accurate.

[0141] As shown in Figure 24, the first suction member 527 has a second suction hole 528 for absorbing the single-sided adhesive tape. The second suction member 526 has a third suction hole 508 for absorbing the tape. The operating principles of the second and third suction holes 528 and 508 are the same as those of the first suction hole 523 and will not be described in detail.

[0142] As shown in Figures 24 and 28, the second adsorption member 526 includes a fourth adsorption block 5261 and a fifth adsorption block 5262 spaced apart from each other. The fourth adsorption block 5261 is connected to a third vacuum pumping device (not shown), and the fifth adsorption block 5262 is connected to a fourth vacuum pumping device (not shown). The third vacuum pumping device and the fourth vacuum pumping device can work independently.

[0143] More specifically, adsorption holes are provided on the fourth adsorption block 5261 and the fifth adsorption block 5262. The fourth adsorption block 5261 is connected to the third vacuum pumping device (not shown), and the fifth adsorption block 5262 is connected to the fourth vacuum pumping device (not shown). The third vacuum pumping device and the fourth vacuum pumping device can work independently, that is, the third vacuum pumping device or the fourth vacuum pumping device can work alone or at the same time, so that the fourth adsorption block 5261 and the fifth adsorption block 5262 can generate adsorption force respectively, or generate adsorption force at the same time.

[0144] The whole process of preparing glue from the glue preparation component 502 to the tape splicing component 501 is as follows:

[0145] The single-sided adhesive tape end portion of the single-sided adhesive tape is adsorbed by the first adsorption hole 523 on the single-sided adhesive tape end holder 505. The first adsorption member 527 of the adhesive attaching member 525 is flush with the single-sided adhesive tape end holder 505, and is in a glue-ready state. The seventh driving member 506 drives the first movable plate 507 to move along the second direction so that the adhesive roller 511 approaches the single-sided adhesive tape end holder 505. After the adhesive roller 511 reaches above the single-sided adhesive tape end holder 505, the eighth driving member 509 drives the second movable plate 510 to move along the first direction so that the adhesive roller 511 abuts the single-sided adhesive tape end portion on the single-sided adhesive tape end holder 505. Then the seventh driving member 506 continues to drive the first movable plate 507 to move along the second direction, closer to the clamping block 516, and the adhesive roller 511 rotates. The single-sided adhesive tape is attached to the roller surface of the adhesive roller 511, and the adhesive roller 511 winds a section of the single-sided adhesive tape. Then, the pressing block 515 clamps the adhesive roller 511 so that it can no longer rotate. Then, the single-sided tape end retainer 505 no longer absorbs the single-sided tape end, and the eighth driving member 509 drives the second movable plate 510 away from the single-sided tape end retainer 505 in the first direction, thereby also moving the adhesive roller 511 away from the single-sided tape end retainer 505. Then, the seventh driving member 506 drives the first movable plate 507 away from the single-sided tape end retainer 505 in the second direction. The single-sided tape unloading member 504 rotates, and the single-sided tape is pulled out a certain length. After the first movable plate 507 reaches the predetermined position, the eighth driving member 509 drives the second movable plate 510 toward the single-sided tape end retainer 505 in the first direction. The first suction member 527 of the adhesive application member 525 and the single-sided tape end retainer 505 work to absorb the single-sided tape. The tenth driving member 514 drives the pressing block 515 to release the adhesive roller 511, allowing the adhesive roller 511 to rotate, and the single-sided tape adhered to the roller surface is flattened onto the first suction member 527. Then, the clamping block 516 clamps the single-sided tape, and the ninth driving member 512 drives the first cutter 513 to cut the single-sided tape between the single-sided tape end holder 505 and the adhesive application member 525. In this way, a section of the single-sided tape can be placed on the first adsorption member 527, and the new single-sided tape end is adsorbed on the single-sided tape end holder 505. Finally, the eighth driving member 509 drives the second movable plate 510 in the first direction away from the single-sided tape end holder 505, entering the next adhesive preparation cycle.

[0146] As shown in Figures 3, 24, 27, and 28, the automatic roll-changing device 100 in this embodiment includes a first unwinding shaft 101 and a second unwinding shaft 102. The first unwinding shaft 101 and the second unwinding shaft 102 are used to load the material roll 205. Specifically, when one of the first unwinding shaft 101 and the second unwinding shaft 102 is used to load the working material roll 201, the other is used to load the spare material roll 202. Two gluing mechanisms 500 are arranged opposite each other. For clarity of description, one is labeled as the first gluing mechanism 529 and the other is labeled as the second gluing mechanism 530.

[0147] The tape splicing assembly 501 of the second gluing mechanism 530 is also equipped with a second cutter 531. The tape splicing assembly 501 of the first gluing mechanism 529 and the tape splicing assembly 501 of the second gluing mechanism 530 can be brought into proximity with each other so that the working tape adsorbed by the second adsorbent 526 is cut by the second cutter 531. Alternatively, the second cutter 531 can also cut the spare tape. When the second adsorbent 526 of the first gluing mechanism 529 adsorbs the tail end of the working tape and the starting end of the spare tape, the single-sided tape adsorbed by the first adsorbent 527 of the second gluing mechanism 530 can bond the tail end of the working tape 203 and the starting end of the spare tape 204 together.

[0148] More specifically, the first gluing mechanism 529 and the second gluing mechanism 530 are arranged opposite each other. This means that when the gluing member 525 of the first gluing mechanism 529 is in the gluing standby state and the gluing member 525 of the second gluing mechanism 530 is also in the gluing standby state, the two second suction members 526 are opposed to each other in the third direction. The first, second, and third directions intersect with each other. The automatic roll-changing device in this embodiment eliminates the need for manual glue preparation, achieving automatic tape splicing and improving roll-changing efficiency.

[0149] As shown in Figure 27, the automatic roll changing device 100 also includes a fourth movable plate 104 and a thirteenth driving member 105, the belt connecting assembly 501 of the first gluing mechanism 529 is installed on the fourth movable plate 104, and the thirteenth driving member 105 drives the fourth movable plate 104 to move close to or away from the belt connecting assembly 501 of the second gluing mechanism 530; and / or, the automatic roll changing device 100 also includes a fifth movable plate 106 and a fourteenth driving member 107, the belt connecting assembly 501 of the second gluing mechanism 530 is installed on the fifth movable plate 106, and the fourteenth driving member 107 drives the fifth movable plate 106 to move close to or away from the belt connecting assembly 501 of the first gluing mechanism 529, so that the thirteenth driving member 105 and the fourteenth driving member 107 can drive the first gluing mechanism 529 and the second gluing mechanism 530 to approach or move away from each other.

[0150] More specifically, after the standby glue component 502 places the single-sided glue on the first adsorption part 527 of the tape splicing component 501, the first glue applying mechanism 529 and the second glue applying mechanism 530 of the tape splicing component 501 can be driven individually or jointly to move closer to or away from each other, so that the second cutter 531 can cut the material tape and stick the single-sided glue on the tail end of the working material tape and the starting end of the standby material tape, and the standby material roll 202 is converted into the working material roll to continue unwinding the material tape.

[0151] As shown in Figures 27 and 28, the tape connecting assembly 501 of the second glue-applying mechanism 530 in this embodiment also includes a second elastic member 532, which enables the glue-applying member 525 to extend to cover the second cutter 531 or to retract the glue-applying member 525 to expose the second cutter 531 when subjected to pressure.

[0152] Next, the automatic roll changing process of the automatic roll changing device in the first embodiment of the present application will be described with reference to FIG1 to FIG8 and FIG15 to FIG28.

[0153] As shown in Figures 3, 4, and 15, the first unwinding shaft 101 is rotating to unwind the working material tape 203, which is being transported toward the winding needle (not shown) for battery cell winding. The second unwinding shaft 102 is loaded with a spare material roll 202. After the second unwinding shaft 102 rotates clockwise until the sealing glue 206 of the spare material roll 202 enters the detection range of the first sensor 304, the first sensor 304 can detect the starting end position of the spare material tape 204 on the spare material roll 202 by identifying the sealing glue 206. Alternatively, by controlling the rotation angle of the second unwinding shaft 102, it is ensured that the starting end 207 of the spare material tape 204 on the spare material roll 202 reaches the starting position. Then, the first driving member 305 drives the movable seat 302 to move toward the direction of the spare material roll 202 (correspondingly away from the working material roll 201), and the second material picking end 307 of the first material picking member 303 picks up the starting end 207 at the starting station, as shown in Figure 3. Then, the first driving member 305 drives the movable seat 302 to move in the direction away from the spare material roll 202 (correspondingly closer to the working material roll 201), the sealing adhesive 206 is torn, and as the starting end 207 moves away from the spare material roll 202, the second unwinding shaft 102 rotates to unwind the spare material strip 204, and the first material picking member 303 pulls out the spare material strip 204 until the first material picking member 303 reaches the transfer station, as shown in Figure 4.

[0154] As shown in Figures 4, 5, and 28, the first material picking member 303 and the second material picking member 401 both arrive at the transfer station. The second material picking member 401 picks up the starting end 207 of the spare material strip 204 from the first material picking member 303. The first tape splicing component 501 of the first gluing mechanism 529 and the first tape splicing component 501 of the second gluing mechanism 530 approach each other, the second cutter 531 cuts the working material strip 203, and the fourth suction block 5261 of the second gluing mechanism 530 suctions the tail end of the working material strip 203.

[0155] As shown in Figures 6 and 28, the first tape connecting component 501 of the first gluing mechanism 529 and the first tape connecting component 501 of the second gluing mechanism 530 move away from each other, and the second material picking part 401 reaches the tape connecting station, more specifically, reaches between the two fourth adsorption blocks 5261, and then the two tape connecting components 501 approach each other again.

[0156] As shown in Figures 7 and 28, the fourth suction block 5261 and the fifth suction block 5262 of the first gluing mechanism 529 operate simultaneously, the second material picking component 401 stops sucking, and the spare material tape 204 is sucked onto the second suction component 526. Then, the two tape splicing assemblies 501 move away from each other, and the second material picking component 401 leaves the tape splicing station.

[0157] As shown in Figures 8 and 28, the tape splicing assembly 501 of the first gluing mechanism 529 and the tape splicing assembly 501 of the second gluing mechanism 530 approach each other again. The second cutter 531 cuts off a section of the spare tape 204. The fifth suction block 5262 of the first gluing mechanism 529 stops suctioning, and the fifth suction block 5262 of the second gluing mechanism 530 begins suctioning. As a result, the new starting end 207 of the spare tape 204 is suctioned to the fifth suction block 5262 of the second gluing mechanism 530. In this way, the tail end of the working tape 203 and the starting end of the spare tape 204 are both suctioned to the second gluing mechanism 530. Because the second cutter 531 cuts the spare tape at a fixed position, the distance between the tail end of the working tape and the starting end of the spare tape is also fixed. This distance can be considered equal to the thickness of the second cutter 531. This ensures more accurate subsequent tape splicing and better product consistency.

[0158] As shown in Figures 27 and 28, the twelfth driving member 524 of the first gluing mechanism 529 drives the gluing member 525 to flip, and the single-sided tape on the first suction member 527 of the first gluing mechanism 529 faces the third direction. The fourth suction block 5261 of the first gluing mechanism 529 stops suctioning, and the cut section of spare tape 204 falls into the waste box 108. Then, the two tape splicing assemblies 501 approach each other again, and the single-sided tape on the first suction member 527 of the first gluing mechanism 529 adheres the tail end of the working tape 203 sucked by the second gluing mechanism 530 to the starting end 207 of the spare tape 204.

[0159] Next, the two tape splicing assemblies 501 move away from each other again, and the twelfth driving member 524 of the first gluing mechanism 529 drives the gluing member 525 to flip, returning to the tape splicing state. Then, the two tape splicing assemblies 501 move toward each other again, and the fourth suction block 5261 and the fifth suction block 5262 of the first gluing mechanism 529 start to operate. The fourth suction block 5261 and the fifth suction block 5262 of the second gluing mechanism 530 stop the suction operation, and the fourth suction block 5261 and the fifth suction block 5262 of the first gluing mechanism 529 suction the working material strip 203 and the spare material strip 204. Then the two tape assemblies 501 move away from each other again, and the twelfth driving member 524 of the second gluing mechanism 530 drives the gluing member 525 to flip, and the single-sided adhesive tape on the first adsorption member 527 of the second gluing mechanism 530 faces the third direction. Then the two tape assemblies 501 move closer to each other again, and the single-sided adhesive tape on the first adsorption member 527 of the second gluing mechanism 530 adheres the tail end of the working tape 203 adsorbed by the second gluing mechanism 530 and the starting end 207 of the spare tape 204 together. In this way, single-sided adhesive tape is applied to both sides of the working tape 203 and the spare tape 204. Finally, the two tape assemblies 501 move away from each other again, and the first gluing mechanism 529 no longer adsorbs the tape. The spare tape roll 202 continues to unwind the tape for battery cell winding. At this time, the spare tape roll 202 becomes the working tape roll, and the roll change is completed.

[0160] In actual application, the second material picking component 401 can also transfer the starting end 207 of the spare material belt 204 to between the two fifth adsorption blocks 5262 as shown in Figure 28. At this time, there is no need to cut the spare material belt 204, saving raw material costs.

[0161] Next, the automatic roll changing process of the automatic roll changing device 100 in another embodiment of the present application will be described with reference to FIG. 9 to FIG. 28 .

[0162] As shown in FIG9 , since the second unwinding shaft 102 drives the spare material roll 202 to rotate counterclockwise, after the first material picking component 303 picks up the starting end 207 , the starting end 207 is facing downward.

[0163] As shown in FIG10 , at the transfer station, after the second picking component 401 picks up the starting end 207 from the first picking component 303 , the starting end 207 is still facing downward.

[0164] As shown in Figure 11, during the movement of the second material picking member 401 from the transfer station to the belt connecting station, the fourth driving member 406 drives the second material picking member 401 to rotate around the axis L of the second material picking member 401, and the third material picking end 414 that picks up the starting end 207 turns from facing the left to facing the right, and the spare material belt 204 turns from the state shown by the solid line to the state shown by the dotted line, with the starting end 207 facing upward.

[0165] As shown in FIG. 12 , the tape splicing assembly 501 of the first gluing mechanism 529 absorbs the cut working tape 203 .

[0166] As shown in FIG. 13 , the tape splicing assembly 501 of the second gluing mechanism 530 absorbs the spare material tape 204 .

[0167] As shown in FIG14 , the cut working material strip 203 and the spare material strip 204 are both adsorbed onto the second adsorption component 526 of the first gluing mechanism 529 , and then the first adsorption component 527 of the second gluing mechanism 530 performs gluing.

[0168] Then, the second gluing mechanism 530 absorbs the working material tape 203 and the spare material tape 204 , and the first adsorption component 527 of the first gluing mechanism 529 performs gluing.

[0169] As can be seen from the above description, the embodiment shown in Figures 9 to 28 incorporates a rotation process of the second material pick-up member 401 during the transfer process, and is therefore applicable when the second unwinding shaft 102 rotates counterclockwise. The processes for starting, cutting, and gluing the strip are similar to those shown in Figures 3 to 8 and will not be described in detail.

[0170] An embodiment of the present application further provides a battery cell winding device, comprising: the automatic roll changing device as described above.

[0171] During the battery cell winding process, the automatic roll changing device can automatically start, transport and bond the material tape, thereby improving the production efficiency of the battery cell winding equipment.

[0172] 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.

[0173] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit 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. An automatic roll changing device (100), characterized in that: include: A starting mechanism (300), the starting mechanism (300) comprising a first material picking member (303), the first material picking member (303) being able to move between a starting station and a transfer station to pick up the starting end of a spare material tape (204) on a spare material roll (202), and drive the starting end of the spare material tape (204) to separate from the spare material roll (202) and move in a direction away from the spare material roll (202); A material belt transfer mechanism (400), the material belt transfer mechanism (400) comprising a second material picking member (401), the second material picking member (401) being movable between a transfer station and a belt splicing station to transfer the starting end of the spare material belt (204) on the first material picking member to the belt splicing station; The gluing mechanism (500) comprises a tape splicing assembly (501), wherein the tape splicing assembly (501) is located at a tape splicing station, and the tape splicing assembly (501) is capable of adsorbing the starting end of the spare tape (204) on the second material picking member (401), so that the single-sided adhesive can bond the tail end of the working tape and the starting end of the spare tape together.

2. The automatic roll changing device according to claim 1, characterized in that: The starting mechanism (300) comprises: Mounting seat (301); A movable seat (302), wherein the movable seat (302) is slidably matched with the mounting seat (301), and the movable seat (302) is equipped with the first material taking member (303); The first driving member (305) is capable of driving the movable seat (302) to move so that the first material picking member (303) moves between the starting station and the transfer station.

3. The automatic roll changing device according to claim 2, characterized in that: The first material picking member (303) has a first material picking end (306) and a second material picking end (307) which are opposite to each other.

4. The automatic roll changing device according to claim 2, characterized in that: Also includes: The first sensor (304) is used to detect the starting end position of the spare material tape (204) on the spare material roll (202); the first driving member (305) drives the movable seat (302) to move according to the starting end position signal detected by the first sensor (304), so that the first material picking member (303) reaches the position for picking up the starting end of the spare material tape (204) on the spare material roll (202).

5. The automatic roll changing device according to claim 4, characterized in that: The first sensor (304) is installed on the movable seat (302), and the movable seat (302) is installed with a second driving member (308), and the second driving member (308) is used to drive the first sensor (304) to rotate toward the first material picking end (306) side of the first material picking member (303) or toward the second material picking end (307) side of the first material picking member (303).

6. The automatic roll changing device according to claim 4, characterized in that: It also includes a second sensor (103), which is used to detect the diameter of the spare material roll (202). The first driving member (305) can drive the movable seat (302) to move to a predetermined position according to the diameter signal detected by the second sensor (103), so that the starting end of the spare material tape (204) on the spare material roll (202) can enter the detection range of the first sensor (304).

7. The automatic roll changing device according to claim 3, characterized in that: The first material picking end (306) and / or the second material picking end (307) of the first material picking member (303) has a first adsorption block (309) and a second adsorption block (310) spaced apart from each other in a first direction, the first adsorption block (309) is connected to a first vacuum pumping device (311), the second adsorption block (310) is connected to a second vacuum pumping device (312), and the first vacuum pumping device (311) and the second vacuum pumping device (312) can work independently.

8. The automatic roll changing device according to claim 1, characterized in that: The material belt transfer mechanism (400) further includes: A fixing plate (402); A first support (404), the first support (404) is mounted on the fixing plate (402) and can move along a first direction, the second material picking member (401) is mounted on the first support (404) and can move along a second direction, the second material picking member (401) comprises a third adsorption block (412), the third adsorption block (412) has an adsorption hole, and the adsorption hole is connected to a vacuum device; A third driving member (405), the third driving member (405) is used to drive the first support (404) to move so as to drive the second material taking member (401) to move between the transfer station and the belt connection station; The first direction intersects the second direction.

9. The automatic roll changing device according to claim 8, characterized in that: The material belt transfer mechanism (400) further comprises a fourth driving member (406), wherein the fourth driving member (406) is used to drive the second material picking member (401) to rotate around the axis of the second material picking member (401).

10. The automatic roll changing device according to claim 8, characterized in that: The material belt transfer mechanism (400) further includes: A second support (407), the second support (407) is mounted on the first support (404) and is movable along a second direction, and the second material taking member (401) is mounted on the second support (407); A fifth driving member (408), wherein the fifth driving member (408) is used to drive the second support (407) to move so as to adjust the position of the second material picking member (401) in the second direction.

11. The automatic roll changing device according to claim 10, characterized in that: It also includes a third sensor (109), which is used to detect the edges of the working material tape (203) and the spare material tape (204). The fifth driving member (408) drives the second support (407) to move according to the edge signal detected by the third sensor (109) to adjust the position of the second material picking member (401) in the second direction so that the edge of the working material tape (203) is aligned with the edge of the spare material tape (204).

12. The automatic roll changing device according to claim 1, characterized in that: The glue sticking mechanism (500) further comprises a glue preparation component (502); The tape splicing assembly (501) comprises a glue sticking member (525), wherein the glue sticking member (525) comprises a first adsorption member (527) and a second adsorption member (526), ​​wherein the first adsorption member (527) is used for adsorbing the single-sided adhesive, and the second adsorption member (526) is used for adsorbing the material tape; The adhesive preparation component (502) is used to place a section of single-sided adhesive on the first adsorption component (527).

13. The automatic roll changing device according to claim 12, characterized in that: The glue preparation component (502) includes a mounting plate (503), the mounting plate (503) is equipped with a rotatable single-sided glue discharge member (504), a single-sided glue end retaining member (505) and a seventh driving member (506), the single-sided glue discharge member (504) is used to load a single-sided glue roll, the seventh driving member (506) is used to drive the first movable plate (507) to move along the second direction to approach or move away from the single-sided glue end retaining member (505), the first movable plate (507) is equipped with an eighth driving member (509), the eighth driving member (509) is connected to the second movable plate (510), the second movable plate (510) is equipped with a rotatable glue pulling roller (511), the glue pulling roller (511) is used to wind the single-sided glue, and the eighth driving member (509) is used to drive the glue pulling roller (511) to move along the first direction to abut against or move away from the single-sided glue end retaining member (505); The first direction intersects the second direction.

14. The automatic roll changing device according to claim 13, characterized in that: The mounting plate (503) is also equipped with a ninth driving member (512), and the ninth driving member (512) is used to drive the first cutter (513) to move to cut off the single-sided adhesive, and the first cutter (513) is located between the single-sided adhesive end retaining member (505) and the adhesive member (525).

15. The automatic roll changing device according to claim 13, characterized in that: The second movable plate (510) is also equipped with a tenth driving member (514), and the tenth driving member (514) is used to drive the pressing block (515) to clamp the rubber-pulling roller (511) or loosen the rubber-pulling roller (511).

16. The automatic roll changing device according to claim 12, characterized in that: The tape connection assembly (501) also includes a twelfth driving member (524), which can drive the glue sticking member (525) to flip so that the first adsorption member (527) is in a glue preparation state or a tape connection state; when the first adsorption member (527) is in the glue preparation state, the adsorption surface of the first adsorption member (527) is flush with the adsorption surface of the single-sided glue end retaining member (505) of the glue preparation assembly (502).

17. The automatic roll changing device according to claim 12, characterized in that: The second adsorption component (526) includes a fourth adsorption block (5261) and a fifth adsorption block (5262) ​​spaced apart from each other, the fourth adsorption block (5261) is connected to a third vacuum pumping device, the fifth adsorption block (5262) ​​is connected to a fourth vacuum pumping device, and the third vacuum pumping device and the fourth vacuum pumping device can work independently.

18. The automatic roll changing device according to claim 12, characterized in that: Also includes: A first unwinding shaft (101) and a second unwinding shaft (102), wherein the first unwinding shaft (101) and the second unwinding shaft (102) are used for loading a material roll; The two gluing mechanisms (500) are arranged opposite to each other, and the tape connection assembly (501) of one of the gluing mechanisms (500) is also equipped with a second cutter (531), and the second cutter (531) can cut the working tape, or can cut the working tape and the spare tape. When one of the gluing mechanisms (500) absorbs the tail end of the working tape and the starting end of the spare tape, the other gluing mechanism (500) can use the absorbed single-sided adhesive to bond the tail end of the working tape and the starting end of the spare tape together.

19. The automatic roll changing device according to claim 18, characterized in that: The automatic roll-changing device further comprises a fourth movable plate (104) and a thirteenth driving member (105), the tape connection assembly (501) of one of the glue-applying mechanisms (500) being mounted on the fourth movable plate (104), and the thirteenth driving member (105) driving the fourth movable plate (104) to move closer to or farther away from the tape connection assembly (501) of another of the glue-applying mechanisms (500); and / or, the automatic roll-changing device further comprises a fifth movable plate (106) and a fourteenth driving member (107), the tape connection assembly (501) of another of the glue-applying mechanisms (500) being mounted on the fifth movable plate (106), and the fourteenth driving member (107) driving the fifth movable plate (106) to move so that the tape connection assemblies (501) of the two glue-applying mechanisms (500) are closer to or farther away from each other.

20. A battery cell winding device, characterized in that: include: An automatic roll changing device as claimed in any one of claims 1 to 19.

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