Automatic roll changing device and battery cell winding equipment

Abstract

The utility model discloses an automatic roll changing device and battery cell winding equipment, and the automatic roll changing device comprises a transfer mechanism which comprises a material taking part which can move between a starting station and a tape splicing station so as to pick up the starting end of a standby material tape on a standby material roll, the starting end of the standby material belt is driven to be separated from the standby material roll and move towards the rubberizing mechanism; and the adhesive tape pasting mechanism comprises a tape splicing assembly, the tape splicing assembly is located at a tape splicing station, and the tape splicing assembly can pick up the starting end of the standby material tape on the material taking part, so that the tail end of the working material tape and the starting end of the standby material tape are bonded together through an adhesive tape. The roll changing device is simple in structure and capable of improving roll changing efficiency.

Description

Technical Field

[0001] 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

[0002] 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 pasted together with the working tape in time so that the winding needle on the turret can continue to wind the tape to produce battery cells. In the prior art, 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, so that the tail end of the working tape is connected to the starting end of the spare tape. This method makes it difficult to ensure that the starting end of the spare tape is separated from the spare material roll, and the starting end often needs to be torn off manually, which increases the labor intensity of the workers and affects the efficiency of the tape connection. The starting and transportation structures of the spare material roll are complicated.

[0003] Therefore, it is necessary to improve the prior art and provide a new automatic roll changing device. Utility Model Content

[0004] 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.

[0005] To achieve the above-mentioned purpose, according to the first aspect of the present application, there is provided an automatic roll-changing device, comprising: a transfer mechanism, the transfer mechanism comprising a material picking piece, the material picking piece being able to move between a starting station and a tape splicing 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 toward a gluing mechanism; the gluing mechanism comprising a tape splicing assembly, the tape splicing assembly being located at the tape splicing station, the tape splicing assembly being able to pick up the starting end of the spare material tape on the material picking piece, so that the adhesive tape bonds the tail end of the working material tape and the starting end of the spare material tape together.

[0006] Optionally, the transfer mechanism also includes: a mounting seat, on which a first driving member is installed; a second driving member, the second driving member is connected to the moving end of the first driving member, the moving end of the second driving member is connected to the material picking member, the first driving member can drive the second driving member to move along the first direction so that the material picking member drives the starting end of the spare material belt to separate from the spare material roll, the second driving member can drive the material picking member to move along the second direction so that the material picking member drives the starting end of the spare material belt to reach the belt connecting station, and the first direction intersects with the second direction.

[0007] Optionally, at the belt splicing station, the first driving member can drive the second driving member to move along a first direction so that the material picking member abuts against the belt splicing assembly.

[0008] Optionally, the transfer mechanism also includes a third driving member, the moving end of the second driving member is connected to the third driving member, the moving end of the third driving member is connected to the material picking member, and the third driving member can drive the material picking member to move along a third direction, and the first direction, the second direction and the third direction intersect each other.

[0009] Optionally, the transfer mechanism further comprises a fourth driving member, the moving end of the third driving member is connected to the fourth driving member, the rotating end of the fourth driving member is connected to the material picking member, and the fourth driving member can drive the material picking member to rotate around a third direction.

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

[0011] Optionally, the first material picking end and / or the second material picking end of the material picking member has a first adsorption block and a second adsorption block spaced apart from each other in a second 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.

[0012] 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. The first sensor is installed at the moving end of the first driving member, and the first driving member and / or the second driving member and / or the third driving member and / or the fourth driving member drive the material picking member to reach the position of picking up the starting end of the spare material tape on the spare material roll according to the starting end position signal detected by the first sensor.

[0013] Optionally, the automatic roll changing device also includes a second sensor, which is used to detect the diameter of the spare material roll. The moving end of the first driving member moves 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 material roll can enter the detection range of the first sensor.

[0014] Optionally, the automatic roll changing device also includes a third sensor, which is used to detect the edges of the working material tape and the spare material tape. The moving end of the third driving member moves according to the edge signal detected by the third sensor to adjust the position of the material picking member in the third direction so that the edge of the working material tape is aligned with the edge of the spare material tape.

[0015] Optionally, the transfer mechanism further comprises a track, and the material picking member can move along the track to reach a starting station or a belt connection station.

[0016] Optionally, the automatic roll changing device also includes a first unwinding shaft and a second unwinding shaft, and the first unwinding shaft and the second unwinding shaft are used for loading the material roll; the track includes a first track and a second track, one end of the first track corresponds to the starting position of the first unwinding shaft, and the other end of the first track corresponds to the tape splicing position, one end of the second track corresponds to the starting position of the second unwinding shaft, and the other end of the second track corresponds to the tape splicing position.

[0017] Optionally, the glue applying mechanism also includes a glue preparation assembly; the tape connecting assembly 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 adhesive tape, and the second adsorption part is used to adsorb the material tape; the glue preparation assembly is used to place a section of adhesive tape on the first adsorption part.

[0018] Optionally, the glue preparation assembly includes a mounting plate, on which a rotatable tape discharge member, a tape end retaining member and a fifth driving member are installed, the tape discharge member is used to load the tape roll, the fifth driving member is used to drive the first movable plate to move along a third direction to approach or move away from the tape end retaining member, the first movable plate is installed with a sixth driving member, the sixth driving member is connected to the second movable plate, the second movable plate is installed with a rotatable glue pulling roller, the glue pulling roller is used to wind the tape, and the sixth driving member is used to drive the glue pulling roller to move along a second direction to abut against or move away from the tape end retaining member; the second direction intersects with the third direction.

[0019] Optionally, the mounting plate is further mounted with a seventh driving member, the seventh driving member being used to drive the first cutter to move to cut the tape, the first cutter being located between the tape end retaining member and the adhesive applying member.

[0020] Optionally, the second movable plate is further provided with an eighth driving member, and the eighth driving member is used to drive the pressing block to clamp the rubber-drawing roller or to loosen the rubber-drawing roller.

[0021] Optionally, the tape connecting assembly also includes a ninth driving member, which can drive the glue sticking member to flip so that the first adsorption member is in a glue preparation state or in a tape connecting state; when the first adsorption member is in the glue preparation state, the adsorption surface of the first adsorption member is flush with the adsorption surface of the tape end retaining member of the glue preparation assembly.

[0022] Optionally, the second adsorption member includes a third adsorption block and a fourth adsorption block spaced apart from each other, the third adsorption block is connected to a third vacuum pumping device, the fourth adsorption block is connected to a fourth vacuum pumping device, and the third vacuum pumping device and the fourth vacuum pumping device can work independently.

[0023] 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 make the absorbed tape bond the tail end of the working material tape and the starting end of the spare material tape together.

[0024] 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.

[0025] The automatic roll-changing device in the embodiment of the present application can automatically start, transfer, and splice the spare material roll, so as to achieve the purpose of attaching the tape to the tail end of the working material tape and the starting end of the spare material tape, automatically changing the material roll, and using a material-taking piece to complete the starting and transfer of the spare material roll. It has a simple structure, does not require manual starting, has a high degree of automation, and has high production efficiency. The automatic roll-changing device also has the advantages of high splicing accuracy and small space occupation. The battery cell winding equipment has the advantages of simple structure and high battery cell production efficiency due to the use of the automatic roll-changing device.

[0026] 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

[0027] 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.

[0028] Figure 1 It is a main view of a material roll.

[0029] Figure 2 yes Figure 1 Left view of the coil in .

[0030] Figure 3 This is a working principle diagram of the automatic roll changing device of the first embodiment of the present application, in which the material picking piece is at the starting position.

[0031] Figure 4 It is a structural principle diagram of the transfer mechanism of the first embodiment of the present application.

[0032] Figure 5 This is a working principle diagram of the automatic roll changing device of the first embodiment of the present application, wherein the material taking piece is in the initial position and the spare material roll rotates clockwise.

[0033] Figure 6It is a working principle diagram of the automatic roll changing device of the first embodiment of the present application, wherein the working material belt is cut off, and the material taking piece drives the starting end of the spare material belt to separate from the spare material roll.

[0034] Figure 7 This is a working principle diagram of the automatic roll changing device of the first embodiment of the present application, in which the material taking part is at the tape splicing station.

[0035] Figure 8 It is a working principle diagram of the automatic roll changing device of the first embodiment of the present application, wherein the starting end of the spare material tape and the tail end of the working material tape are adsorbed by the tape splicing assembly.

[0036] Fig. 9 This is a working principle diagram of the automatic roll changing device of the first embodiment of the present application, in which the tail end of the working material belt and the starting end of the spare material belt are adsorbed at the same time.

[0037] Fig.10 This is a working principle diagram of the automatic roll changing device of the second embodiment of the present application, wherein the spare material roll rotates counterclockwise, and the material taking piece drives the starting end of the spare material tape to separate from the spare material roll.

[0038] Fig.11 It is a working principle diagram of the automatic roll changing device of the second embodiment of the present application, in which the material taking piece rotates around a third direction.

[0039] Fig.12 This is a working principle diagram of the automatic roll changing device of the second embodiment of the present application, in which the material picking part is at the tape splicing station.

[0040] Fig.13 It is a working principle diagram of the automatic roll changing device of the second embodiment of the present application, in which the working material belt and the spare material belt are adsorbed by the belt connecting assembly, and the material is taken and returned to the initial position.

[0041] Fig.14 This is a working principle diagram of the automatic roll changing device of the second embodiment of the present application, in which the working material belt and the spare material belt are adsorbed at the same time.

[0042] Fig.15 This is a working principle diagram of the automatic roll changing device of the third embodiment of the present application.

[0043] Fig.16 It is a three-dimensional diagram of the material taking component of the first embodiment of the present application.

[0044] Fig.17 It is a structural schematic diagram of the glue sticking mechanism of an embodiment of the present application.

[0045] Fig.18 It is a partial three-dimensional diagram of the glue sticking mechanism of the embodiment of the present application.

[0046] Fig.19It is a schematic diagram of the structure of the pressing block and the rubber pulling roller of the embodiment of the present application.

[0047] Fig. 20 It is a partial schematic diagram of the automatic roll changing device of the embodiment of the present application, which mainly illustrates the working principles of the first gluing mechanism and the second gluing mechanism.

[0048] Fig.21 yes Fig. 20 An enlarged view of the two splice components in FIG.

[0049] Description of reference numerals:

[0050] 100, automatic roll changing device; 101, first unwinding shaft; 102, second unwinding shaft; 103, first sensor; 104, fourth moving plate; 105, tenth driving member; 106, second sensor; 107, eleventh driving member; 108, waste box; 109, third sensor; 110, fixed plate; 111, through slot; 112, fifth moving plate; 201, working material roll; 202, spare material roll; 203, working material belt; 204, spare material belt; 205, material roll; 206, sealing glue; 207, starting end; 300, transfer mechanism; 301, mounting seat; 302, first driving member; 303, material taking member; 304, second driving member; 305, third driving member; 306, first material taking end; 307, second material taking end; 308, fourth driving member; 309, first adsorption block; 310, second adsorption block; 311, first vacuum pumping device; 312, second vacuum pumping device; 313, track; 314, first track; 315, second track ; 400, glue sticking mechanism; 401, tape splicing assembly; 402, glue preparation assembly; 403, mounting plate; 404, tape feeding member; 405, tape end retainer; 406, fifth drive member; 407, first movable plate; 408, third adsorption hole; 409, sixth drive member; 410, second movable plate; 411, glue pulling roller; 412, seventh drive member; 413, first cutter; 414, eighth drive member; 415, pressing block; 416, clamping block; 417, twelfth drive Component; 418, tensioning roller; 419, third movable plate; 420, first elastic component; 421, first over roller; 422, second over roller; 423, first adsorption hole; 424, ninth driving component; 425, gluing component; 426, second adsorption component; 4261, third adsorption block; 4262, fourth adsorption block; 427, first adsorption component; 428, second adsorption hole; 429, first gluing mechanism; 430, second gluing mechanism; 431, second cutter; 432, second elastic component. DETAILED DESCRIPTION

[0051] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0052] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0053] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0054] 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.

[0055] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0056] 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.

[0057] In the following description, the material tape, material roll, starting end and tail end are only used to describe the working principle of the automatic roll changing device and the battery cell winding equipment, and should not be regarded as part of any mechanism, device or equipment.

[0058] In the following description, "connection" includes both a direct connection between the two and an indirect connection between the two via, for example, an adapter plate, a driving member, etc.

[0059] like Figure 1 and Figure 2 As shown, the starting end 207 of the material roll 205 is glued with a sealing adhesive 206 .

[0060] For the sake of clarity, the material roll 205 that is being unwound for cell winding is marked as the working material roll 201, the material roll 205 that has not been unwound for cell winding is marked as the spare material roll 202, the material tape that is being wound for cell winding is marked as the working material tape 203, and the material tape that has not been wound for cell winding is marked as the spare material tape 204. In the following description, the first unwinding shaft 101 is loaded with the working material roll 201, and the second unwinding shaft 102 is loaded with the spare material roll 202. In actual applications, the first unwinding shaft 101 can also be loaded with the spare material roll 202, and the second unwinding shaft 102 can also be loaded with the working material roll 201.

[0061] In such Figures 3 to 9 In the embodiment shown, the reserve roll 202 rotates clockwise, while Figures 10 to 14 In the illustrated embodiment, the backup roll 202 rotates counterclockwise.

[0062] like Figures 3 to 21 As shown, the automatic roll changing device 100 in this embodiment includes a transfer mechanism 300 and a glue sticking mechanism 400. The transfer mechanism 300 includes a material picking member 303, which can move between the starting station and the tape splicing 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 toward the glue sticking mechanism 400. The material picking member 303 can generate negative pressure by connecting with a vacuum pumping mechanism, thereby adsorbing the starting end 207, or clamping the starting end 207 by a clamping mechanism, thereby picking up the starting end 207. The glue sticking mechanism 400 includes a tape splicing assembly 401, and the tape splicing assembly 401 is located at the tape splicing station. The tape splicing assembly 401 can pick up the starting end 207 of the spare tape 204 on the material part 303 by means of negative pressure adsorption generated by a vacuum mechanism or by clamping by a clamping mechanism, so that the tape can bond the tail end of the working tape 203 and the starting end 207 of the spare tape 204 together.

[0063] More specifically, if Figures 3 to 9 In the first embodiment shown, the material taking member 303 is driven by various driving members. Figure 3 As shown, at this time, the material picking member 303 is located at the starting position, where the material picking member 303 picks up the starting end 207 of the spare material tape 204 on the spare material roll 202. Figure 6 As shown, under the drive of the first driving member 302, the material picking member 303 keeps picking up the starting end 207 of the spare material tape 204 and moves along the first direction. During the movement, the 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 in a direction away from the spare material roll 202, so that the sealing glue 206 is torn apart, the second unwinding shaft 102 rotates clockwise, and the spare material tape 204 is pulled out. The rotation of the second unwinding shaft 102 can prevent the spare material tape 204 from being torn. Figure 6 As shown, at the tape splicing station, two tape splicing components 401 approach each other, cut the working tape 203, and the tail end of the working tape 203 is adsorbed by one tape splicing component 401. Then, the two tape splicing components 401 move away from each other. Figure 7 As shown, under the drive of the second driving member 304, the material taking member 303 moves toward the gluing mechanism until it reaches the tape splicing station, so the starting end 207 of the spare material tape 204 also reaches the tape splicing station. Figure 8As shown, at the tape splicing station, driven by the first driving member 302, the material taking member 303 moves along the first direction until it abuts against the tape splicing assembly 401, and the starting end 207 of the spare tape 204 is adsorbed by the tape splicing assembly 401. Then, driven by the second driving member 304, the material taking member 303 leaves the tape splicing station and returns to the initial position. Fig. 9 As shown, the starting end 207 of the spare tape 204 and the tail end of the working tape 203 are attracted by the same tape splicing assembly 401, and another tape splicing assembly 401 prepares the adhesive tape. Then the two tape splicing assemblies 401 approach each other, and the other tape splicing assembly 401 uses the adhesive tape to bond the tail end of the working tape 203 and the starting end 207 of the spare tape 204 together, and the waste material falls into the waste material box 108. Finally, the two tape splicing assemblies 401 no longer attract the working tape 203 and the spare tape 204, and the second unwinding shaft 102 continues to unwind the tape, and the roll change is completed.

[0064] like Fig.15 As shown, in the third embodiment of the present application, the transfer mechanism 300 further includes a track 313. The material picking member 303 can move along the track 313 to reach the starting station or the belt connection station.

[0065] Specifically, the track 313 may be a magnetic suspension track or a slide track, and the material picking member 303 moves along the track 313 , thereby moving between the starting station and the tape connection station.

[0066] From the above description, it can be seen that no matter Figures 3 to 9 In the first embodiment shown, Fig.15 In the third embodiment shown, during the entire process from the start to the splicing, the starting end 207 of the spare material tape 204 can be separated from the spare material roll 202 by relying on the movement of the material picking piece 303, and the starting end 207 of the spare material tape 204 can be adsorbed on the splicing assembly after arriving at the splicing station. The structure is simple, and the entire process does not require human intervention. The adhesive tape can be used to achieve the bonding of the working material tape and the spare material tape, which has high work efficiency and high splicing accuracy.

[0067] like Figure 4 As shown, the transfer mechanism in this embodiment further includes a mounting seat 301, and the mounting seat 301 is equipped with a first driving member 302. The second driving member 304 is connected to the moving end of the first driving member 302, and the moving end of the second driving member 304 is connected to the material picking member 303. The first driving member 302 can drive the second driving member 304 to move along the first direction so that the material picking member 303 drives the starting end of the spare material belt 204 to separate from the spare material roll 202, and the second driving member 304 can drive the material picking member 303 to move along the second direction so that the material picking member 303 drives the starting end 207 of the spare material belt 204 to reach the tape connection station. The first direction intersects with the second direction.

[0068] More specifically, the first driving member 302 can be mounted on the mounting base 301 by means of bolts, rivets, etc. The second driving member 304 is connected to the moving end of the first driving member 302, so the first driving member 302 can drive the entire second driving member 304 to move along the first direction. The moving end of the second driving member 304 is connected to the material picking member 303, so the second driving member 304 can drive the material picking member 303 to move along the second direction. Figure 5 As shown, in the initial state, the working material roll 201 unwinds the working material belt 203 normally, and the material taking piece 303 is in the initial position and does not interfere with the conveying of the working material belt 203. Figure 3 As shown, when the working material roll 201 is about to be unwound, the first driving member 302 drives the second driving member 304 to move along the first direction, thereby driving the material picking member 303 to move along the first direction to reach the starting position. At the starting position, the material picking member 303 picks up the starting end 207 of the spare material tape 204 on the spare material roll 202 by adsorption, grabbing, etc., and then the first driving member 302 drives the second driving member 304 to move, and the material picking member 303 moves with the second driving member 304. Since the material picking member 303 remains in the state of picking up the starting end 207, the second driving member 304 will cause the 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, and the sealing glue 206 is therefore torn open. The material picking member 303 continues to move in the direction away from the spare material roll 202 to reach the starting position as shown in the figure. Figure 6 In the position shown, the second unwinding shaft 102 rotates to unwind the spare material tape 204, and the spare material tape 204 is pulled out from the spare material roll 202. The rotation of the second unwinding shaft 102 can prevent the spare material tape 204 from being torn during the pulling process. Then, the second driving member 304 drives the material taking member 303 to move along the second direction, and the first driving member 302 drives the second driving member 304 to move at the same time until the material taking member 303 drives the starting end 207 of the spare material tape 204 to reach the position shown in FIG. Figure 7 The tape splicing station shown is for subsequent splicing with the working material tape 203.

[0069] As can be seen from the above description, the unwinding and transporting process of the spare material roll 202 does not require manual intervention, and the material taking piece 303 will automatically tear off the sealing glue 206, thereby improving the unwinding efficiency.

[0070] like Figure 7 As shown, at the tape splicing station, the first driving member 302 can drive the second driving member 304 to move along the first direction so that the material picking member 303 abuts against the tape splicing assembly 401 .

[0071] More specifically, after the material picking member 303 drives the starting end 207 of the spare material tape 204 to arrive at the tape splicing station, the first driving member 302 drives the second driving member 304 to move along the first direction again, so that the material picking member 303 abuts against the tape splicing assembly 401, and the starting end 207 can be adsorbed by the tape splicing assembly 401 and transferred to the tape splicing assembly 401. This method makes it unnecessary for the tape splicing assembly 401 to move close to the material picking member 303, thereby reducing the manufacturing cost. In other embodiments, the tape splicing assemblies 401 can also move close to each other, so as to abut against the material picking member 303 to adsorb the starting end 207, but this method consumes more energy because the movement of the tape splicing assembly 401 increases the production cost.

[0072] As shown in Figures 7 and 8, the transfer mechanism 300 further includes a third driving member 305. The moving end of the second driving member 304 is connected to the third driving member 305, and the moving end of the third driving member 305 is connected to the material taking member 303. The third driving member 305 can drive the material taking member 303 to move along the third direction. The first direction, the second direction and the third direction intersect each other.

[0073] More specifically, in Figure 7 and Figure 8 In the figure, the third direction is a direction perpendicular to the paper surface. The moving end of the second driving member 304 is connected to the third driving member 305, so the second driving member 304 can drive the entire third driving member 305 to move along the second direction. The moving end of the third driving member 305 is connected to the material taking member 303, so the third driving member 305 can drive the material taking member 303 to move along the third direction. Figure 7 As shown, after the tape assembly 401 absorbs the head end 207, the third driving member 305 first drives the material taking member 303 to move along the third direction, for example, to retreat into the Figure 3 The through slot 111 on the fixed plate 110 shown in the figure, or, retreat into the space between the belt assembly 401 and the fixed plate 110, and then the second driving member 304 drives the third driving member 305 to move downward along the second direction to prevent the material taking member 303 from returning to the position as shown in the figure. Figure 8 During the process of the initial position shown, interference occurs with the working tape 203 or the spare tape 204.

[0074] like Figure 4 , Figures 10 to 14 As shown, in the second embodiment of the present application, the transfer mechanism 300 further includes a fourth driving member 308. The moving end of the third driving member 305 is connected to the fourth driving member 308, and the rotating end of the fourth driving member 308 is connected to the material picking member 303, and the fourth driving member 308 can drive the material picking member 303 to rotate around the third direction.

[0075] More specifically, the moving end of the third driving member 305 is connected to the fourth driving member 308, so the third driving member 305 can drive the entire fourth driving member to move along the third direction. The rotating end of the fourth driving member 308 is connected to the material picking member 303, so the fourth driving member 308 can drive the material picking member 303 to rotate around the third direction. Figures 10 to 14 In the third direction, it is perpendicular to the paper surface. Fig.10 In the embodiment, the spare material roll 202 rotates counterclockwise, the material taking member 303 picks up the starting end 207 of the spare material tape 204 on the spare material roll 202, and the first driving member 302 drives the second driving member 304 to move along the first direction, so that the material taking member 303 drives the starting end 207 of the spare material tape 204 to separate from the spare material roll 202. Fig.11 As shown, the tape splicing components 401 approach each other to cut the working tape 203 and absorb the tail end of the working tape 203. The first driving member 302 and the second driving member 304 drive the material picking member 303 to move toward the tape splicing station, and the fourth driving member 308 drives the material picking member 303 to rotate around the third direction. Fig.11 The material taking member 303 and the spare material belt 204 before the rotation are indicated by dotted lines, and the material taking member 303 and the spare material belt 204 after the rotation are indicated by solid lines. The starting end 207 is rotated from the side close to the second unwinding shaft 102 to the side close to the first unwinding shaft 101. Fig.12 As shown, driven by the material taking member 303, the starting end 207 of the spare material tape 204 arrives at the tape splicing station. Fig.13 As shown, the starting end 207 of the spare material belt 204 is adsorbed by the belt connecting assembly 401, and the material picking piece 303 returns to the initial state. Fig.14 As shown, the tape splicing assembly 401 makes the adhesive tape bond the tail end of the working material tape 203 and the starting end 207 of the spare material tape 204 together, and the waste material falls into the waste material box 108. Finally, the two tape splicing assemblies 401 no longer absorb the working material tape 203 and the spare material tape 204, and the second unwinding shaft 102 continues to unwind the material tape, and the roll change is completed. From the above description, it can be seen that since the fourth driving member 308 can drive the material taking member to rotate around the third direction, the automatic roll changing device 100 is suitable for the counterclockwise rotation of the spare material roll 202, which improves the versatility of the automatic roll changing device 100.

[0076] like Fig.10 and Fig.11As shown, the material picking member 303 has a first material picking end 306 and a second material picking end 307 opposite to each other. More specifically, when the first unwinding shaft 101 is loaded with the spare material roll 202, the first material picking 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 the spare material roll 202, the second material picking 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 material picking member 303 can pick up the starting ends 207 of the spare material tape 204 on the spare material roll 202 on both sides respectively by driving the first driving member 302 or through the track 313, and has high versatility. The first material picking end 306 and the second material picking end 307 can pick up the starting end 207 by vacuum adsorption, grabbing, etc.

[0077] like Fig.16 As shown, this embodiment specifically describes an adsorption type material picking member 303. The first material picking end 306 of the material picking member 303 has a first adsorption block 309 and a second adsorption block 310 spaced apart from each other in the second direction. The adsorption holes on the first adsorption block 309 are connected to the first vacuum device 311 ( Fig.16 The adsorption hole on the second adsorption block 310 is connected to the second vacuum device 312 ( Fig.16 The first vacuum device 311 and the second vacuum device 312 can work independently. This structure can improve the reliability of the material picker 303 picking up the starting end 207 of the material belt. If the vacuuming capacity of one vacuum device is insufficient or fails, the other vacuum device can also maintain the adsorption of the spare material belt 204.

[0078] Similarly, the second material taking end 307 can also have 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, and the adsorption holes on the second adsorption block 310 are connected to the second vacuum pumping device 312. The first vacuum pumping device 311 and the second vacuum pumping device 312 can work independently. Alternatively, the first material taking end 306 and the second material taking end 307 can also adopt other structures respectively.

[0079] In actual work, the first direction refers to the thickness direction of the spare material strip 204 adsorbed by the first material picking end 306 or the second material picking end 307, the second direction refers to the length direction of the spare material strip 204 adsorbed by the first material picking end 306 or the second material picking end 307, and the third direction refers to the width direction of the spare material strip 204 adsorbed by the first material picking end 306 or the second material picking end 307. The advantage of the first adsorption block 309 and the second adsorption block 310 being spaced apart from each other in the second direction is that, firstly, the material picking part 303 is easy to process, and the first adsorption block 309 and the second adsorption block 310 are not spaced apart in the width direction of the material strip, so the first adsorption block 309 and the second adsorption block 310 only need to process a small number of adsorption holes to meet the adsorption requirements of the material strip, and the first vacuum device 311 and the second vacuum device 312 can also be connected on the same side of the material picking part 303, which is easy to process and compact in layout.

[0080] like Figures 3 to 14 As shown, the automatic roll changing device 100 further includes a first sensor 103, 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 sensor 103 is installed at the moving end of the first driving member 302, and only moves with the moving end of the first driving member 302. The first driving member 302 and / or the second driving member 304 and / or the third driving member 305 and / or the fourth driving member 308 drive the material picking member 303 to the position of picking up the starting end 207 of the spare material tape 204 on the spare material roll 202 according to the starting end position signal detected by the first sensor 103.

[0081] More specifically, during the rotation of the second unwinding shaft 102, the first sensor 103 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 and image of the sealing glue 206, and judge whether the starting end 207 has reached the position range that can be picked up by the material picking member 303. If the starting end 207 is detected to have reached the position range that can be picked up by the material picking member 303, the first sensor 103 will send a starting end position signal, and the first driving member 302 will drive the material picking member 303 to move along the first direction according to the starting end position signal detected by the first sensor 103. And / or, the second driving member 304 drives the material picking member 303 to move along the second direction according to the starting end position signal detected by the first sensor 103, and / or, the third driving member 305 drives the material picking member 303 to move along the third direction according to the starting end position signal detected by the first sensor 103, and / or, the fourth driving member 308 drives the material picking member 303 to rotate around the third direction according to the starting end position signal detected by the first sensor 103, so that the 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, and the material picking member 303 picks up the starting end 207.

[0082] More specifically, the first sensor 103 may be a color sensor or an image sensor or a combination of multiple sensors.

[0083] The color sensor may use, for example, an integrated light-to-voltage converter or an integrated light-to-frequency converter to identify the color of the sealing adhesive 206, and further identify the position of the starting end 207 of the spare material tape 204 on the spare material roll 202. The image sensor may use, 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 roll 202, and further identify the position of the starting end 207.

[0084] In this way, the starting end position signal detected by the first sensor 103 can ensure that the material picking member 303 can accurately pick up the starting end 207 .

[0085] like Figures 3 to 9 As shown, 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) to perform 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 103, the first sensor 103 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, the starting end 207 of the spare material tape 204 on the spare material roll 202 is ensured to reach the starting position by controlling the rotation angle of the second unwinding shaft 102. Then, the first driving member 302 drives the second driving member 304 to move along the first direction toward the direction close to the spare material roll 202 (correspondingly away from the working material roll 201), and the second driving member 304 drives the material taking member 303 to move along the second direction toward the direction close to the spare material roll 202. The second material picking end 307 of the material picking member 303 picks up the starting end 207 at the starting station. Then, the first driving member 302 drives the second driving member 304 to move in a direction away from the spare material roll 202 (correspondingly close to the working material roll 201), and the sealing glue 206 is torn off. As the starting end 207 moves away from the spare material roll 202, the second unwinding shaft 102 rotates to unwind the spare material tape 204, and the 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 to complete the roll change. The entire roll change process does not require manual tearing of the sealing glue 206, and the roll change efficiency is higher.

[0086] 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 glue 206 of the spare material roll 202 enters the detection range of the first sensor 103, and the first sensor 103 can detect the starting end position of the spare material tape 204 on the spare material roll 202 by identifying the sealing glue 206. Then, the first driving member 302 drives the second driving member 304 to move in the first direction toward the direction close to the spare material roll 202 (correspondingly away from the working material roll 201), and the second driving member 304 drives the material picking member 303 to approach the spare material roll 202 in the second direction, and the first material picking end 306 of the material picking member 303 picks up the starting end 207. Then, the first driving member 302 drives the second driving member 304 to move along the first 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 material taking 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.

[0087] In other words, the first driving member 302 drives the material picking member 303 to reciprocate 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 tape 204 on the first unwinding shaft 101 and the second unwinding shaft 102 respectively, with a high degree of automation and small space occupation.

[0088] In the first and second embodiments of the present application, the first driving member 302 drives the second driving member 304 to move translationally along the first direction 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 adapting to a larger material roll size range.

[0089] More specifically, the translational movement can be achieved by the cooperation of a linear rail and a slider, or by the cooperation of a slider and a slide slot, or by converting the rotation of a motor into translational movement through a lead screw structure.

[0090] In this embodiment, when the first sensor 103 detects the starting end position of the spare 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 at a predetermined angle according to the starting end position signal until the sealing glue 206 position can be aligned with the material picking piece 303, which is conducive to the material picking piece 303 picking up the starting end 207 position more accurately and improving the subsequent tape connection accuracy. Whether the first unwinding shaft 101 and the second unwinding shaft 102 stop rotating and the predetermined angle required for rotation can be pre-calibrated by testing, and the first unwinding shaft 101 and the second unwinding shaft 102 can rotate or stop rotating according to the calibration.

[0091] like Figure 3 As shown, the automatic roll changing device 100 further includes a second sensor 106. The second sensor 106 is used to detect the diameter of the spare material roll 202, and the moving end of the first driving member 302 moves to a predetermined position according to the diameter signal detected by the second sensor 106, 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 103.

[0092] More specifically, the second sensor 106 can indirectly obtain the diameter of the spare material roll 202 according to 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 302 drives its moving end to move to a predetermined position according to the diameter signal detected by the second sensor 106. The predetermined position can be a position pre-calibrated according to different diameters. Since the detection range of the first sensor 103 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 103, thereby ensuring that the sealing glue 206 can be detected, and there will be no problem that the first sensor 103 is too far away from the spare material roll 202 and cannot detect the position of the starting end 207.

[0093] like Figure 3 , Figure 4 As shown, the automatic roll changing device 100 in this embodiment further includes a third sensor 109. The third sensor 109 is used to detect the edges of the working material belt 203 and the spare material belt 204. The moving end of the third driving member 305 moves according to the edge signal detected by the third sensor 109 to adjust the position of the material taking member 303 in the third direction so that the edge of the working material belt 203 is aligned with the edge of the spare material belt 204.

[0094] More specifically, when the working material tape 203 and the spare material tape 204 are bonded together, when the material picking piece 303 initially picks up the starting end 207, 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 third direction) after the tapes are connected. Therefore, the third sensor 109 is required to detect the edges of the working material belt 203 and the spare material belt 204, and then transmit the edge signal to the third driving member 305. The third driving member 305 drives the moving end of the third driving member 305 to move along the third direction according to the distance between the edge of the working material belt 203 and the edge of the spare material belt 204, thereby driving the material picking member 303 to move along the third direction and adjust the position of the material picking member 303 in the third direction. The material picking member 303 correspondingly drives the spare material belt 204 to move in the third direction to adjust the position of the spare material belt 204 in the third direction until the edges of the working material belt 203 and the spare material belt 204 are aligned. This can improve the quality of the splicing.

[0095] In such Figure 3 In the illustrated embodiment, two third sensors 109 are used, one of which is close to the first unwinding shaft 101 and the other is close to the second unwinding shaft 102. The two third sensors can work in the following two ways:

[0096] In the first mode, the third sensor 109 close to the first unwinding shaft 101 is used as a transmitting end, and the third sensor 109 close to the second unwinding shaft 102 is used as a receiving end. Figure 3 As shown, before the working material strip 203 is cut, the third sensor 109 near the first unwinding shaft 101 emits a signal, and the signal passes through the edge of the working material strip 203 and is received by the third sensor 109 near the second unwinding shaft 102, thereby detecting the edge of the working material strip 203. Figure 7 As shown, after the working material tape 203 is cut and the starting end 207 of the spare material tape 204 reaches the tape splicing station, the third sensor 109 close to the first unwinding shaft 101 transmits a signal, and the signal passes through the edge of the spare material tape 204 and is received by the third sensor 109 close to the second unwinding shaft 102, thereby detecting the edge of the spare material tape 204.

[0097] In the second mode, both third sensors 109 can work independently to detect the edge of the material tape. The third sensor 109 close to the first unwinding shaft 101 is used to detect the edge of the working material tape 203, and the third sensor 109 close to the second unwinding shaft 102 is used to detect the edge of the spare material tape 204.

[0098] The number of the third sensors 109 can be increased or decreased as needed, and edge detection can be achieved by using technologies such as image recognition and laser detection.

[0099] like Fig.15 As shown, in the third embodiment of the present application, the automatic roll changing device 100 further includes a first unwinding shaft 101 and a second unwinding shaft 102, and the first unwinding shaft 101 and the second unwinding shaft 102 are used to load the material roll. The track 313 includes a first track 314 and a second track 315. One end of the first track 314 corresponds to the starting position of the first unwinding shaft 101, and the other end of the first track 314 corresponds to the tape connection position. One end of the second track 315 corresponds to the starting position of the second unwinding shaft 102, and the other end of the second track 315 corresponds to the tape connection position.

[0100] More specifically, in the third embodiment of the present application, a herringbone track 313 is used. One end of the first track 314 corresponds to the starting station of the first unwinding shaft 101, and the other end of the first track 314 corresponds to the tape connection station. In this way, when the starting end of the spare material roll on the first unwinding shaft 101 needs to be separated from the spare material roll, the material picking member 303 first arrives at the starting station corresponding to the first unwinding shaft 101 along the first track 314, picks up the starting end 207 at the starting station, and then moves to the tape connection station along the first track 314 to achieve the bonding of the starting end 207 of the spare material tape 204 with the tail end of the working material tape 203. One end of the second track 315 corresponds to the starting position of the second unwinding shaft 102, and the other end of the second track 315 corresponds to the tape connection position. When the starting end of the spare material roll on the second unwinding shaft 102 needs to be separated from the spare material roll, the material picker 303 first arrives at the starting position corresponding to the second unwinding shaft 102 along the second track 315, picks up the starting end 207 at the starting position, and moves to the tape connection position along the second track 315 to achieve the bonding of the starting end 207 of the spare material tape 204 with the tail end of the working material tape 203. The "human" shaped track has a simple structure, low cost, and can avoid interference with the material tape.

[0101] like Figure 3 and Fig.17 , Fig. 20 As shown, the glue applying mechanism 400 in this embodiment further includes a glue preparation component 402. The tape connection component 401 includes a glue applying member 425, and the glue applying member 425 includes a first adsorption member 427 and a second adsorption member 426. The first adsorption member 427 is used to absorb the adhesive tape, and the second adsorption member 426 is used to absorb the material tape; the glue preparation component 402 is used to place a section of the adhesive tape on the first adsorption member 427.

[0102] More specifically, the first adsorbent 427 adsorbs the tape, and the second adsorbent 426 adsorbs the material tape (e.g., electrode, diaphragm). In this embodiment, the tape is a single-sided adhesive tape, and the adhesive preparation component 402 can place a section of the single-sided adhesive tape on the first adsorbent 427. The specific adhesive preparation method can be as follows: Figures 17 to 20The scheme shown may also adopt other suitable schemes, such as using a pair of clamps to pull a section of single-sided adhesive and place it on the first adsorbent 427 and then cut it. Since the adhesive preparation component 402 can place a section of single-sided adhesive on the first adsorbent 427, manual adhesive preparation is no longer required during the tape splicing process. The adhesive attachment 425 has both the function of adsorbing the single-sided adhesive and the function of adsorbing the material tape, which improves the degree of automation and the efficiency of tape splicing, and requires less space during the tape splicing process. In other embodiments of the present application, the adhesive tape may also be double-sided adhesive.

[0103] like Figures 17 to 21 As shown, this embodiment provides a specific structure of a glue sticking mechanism 400 .

[0104] The adhesive preparation assembly 402 includes: a mounting plate 403, on which a rotatable adhesive tape unloading member 404, an adhesive tape end retaining member 405 and a fifth driving member 406 are mounted. The adhesive tape unloading member 404 is used to load the adhesive tape roll, the adhesive tape end retaining member 405 is used to retain the end of the adhesive tape, and the fifth driving member 406 is used to drive the first movable plate 407 to move along the third direction to approach or move away from the adhesive tape end retaining member 405. The first movable plate 407 is mounted with a sixth driving member 409, which is connected to the second movable plate 410, and the second movable plate 410 is mounted with a rotatable adhesive roller 411, which is used to wind the adhesive tape, and the sixth driving member 409 is used to drive the adhesive roller 411 to move along the second direction to abut against or move away from the adhesive tape end retaining member 405; the first direction intersects with the second direction and the third direction in pairs.

[0105] More specifically, after the tape unwinding member 404 is mounted on the mounting plate 403, it can rotate freely or be driven by the driving mechanism to rotate, thereby unwinding the tape roll and conveying the tape toward the tape end holder 405. The tape end holder 405 can hold the end of the tape by adsorption or the like. For example, when an adsorption structure is adopted, the tape end holder 405 can adsorb the end of the tape. The fifth driving member 406 is used to drive the first movable plate 407 to move along the third direction to approach or move away from the tape end holder 405. The sixth driving member 409 is installed on the first movable plate 407 and can drive the second movable plate 410 to move along the second direction. For example, the sixth driving member 409 adopts a cylinder, the piston rod of the cylinder is connected to the first movable plate 407, the cylinder body is connected to the second movable plate 410, or the piston rod of the cylinder is connected to the second movable plate 410, and the cylinder body is connected to the first movable plate 407. In this way, the extension and retraction of the piston rod can realize the movement of the second movable plate 410 in the second direction. The adhesive roller 411 is mounted on the second movable plate 410 and can rotate freely or be driven to rotate by the driving member. In this way, the fifth driving member 406 can drive the adhesive roller 411 to move in the third direction to approach or move away from the adhesive tape end retainer 405, and the sixth driving member 409 can drive the adhesive roller 411 to move in the second direction to abut against or move away from the adhesive tape end retainer 405.

[0106] When it is necessary to prepare glue, the fifth driving member 406 drives the first movable plate 407 to move along the third direction so that the rubber roller 411 is close to the tape end holder 405, and "close" here means that the distance between the first movable plate 407 and the tape end holder 405 in the second direction becomes smaller. After the rubber roller 411 arrives above the tape end holder 405, the sixth driving member 409 drives the second movable plate 410 to move along the second direction so that the rubber roller 411 abuts the end of the tape on the tape end holder 405 (at this time, it can be regarded as the rubber roller 411 abutting the tape end holder 405), so the rubber roller 411 will press the end of the tape. Then the fifth driving member 406 continues to drive the first movable plate 407 to move along the third direction (at this time, the original moving direction is still maintained), the rubber roller 411 rotates, and the tape is attached to the roller surface of the rubber roller 411, so the rubber roller 411 is wound around a section of tape. Then, the tape end holder 405 no longer holds the end of the tape, and the sixth driving member 409 drives the second movable plate 410 away from the tape end holder 405 in the second direction, so that the rubber roller 411 also moves away from the tape end holder 405. Then, the fifth driving member 406 drives the first movable plate 407 away from the tape end holder 405 along the third direction, and the tape unloading member 404 rotates, and the tape is pulled out to a certain length. After the first movable plate 407 reaches the predetermined position, the sixth driving member 409 drives the second movable plate 410 to approach the first adsorption member 427 in the second direction, and "approaching" here means that the distance between the rubber roller 411 and the first adsorption member 427 in the second direction becomes smaller. The tape end holder 405 and the first adsorption member 427 work to hold a section of the tape, and the rubber roller 411 unwinds the wound section of the tape. After the first cutter 413 cuts the tape, a section of the tape is placed on the first adsorption member 427. The tape splicing assembly 401 can utilize the second adsorption member 426 to adsorb the material tape and utilize the first adsorption member 427 to apply glue, thereby realizing automatic glue preparation and tape splicing without manual operation, improving the splicing efficiency, and having a compact structure.

[0107] Finally, the sixth driving member 409 drives the second moving plate 410 in the second direction away from the first adsorption member 427 to enter the next glue preparation cycle.

[0108] like Fig.17 As shown, the mounting plate 403 is also equipped with a seventh driving member 412, which is used to drive the first cutter 413 to move to cut the tape. The first cutter 413 is located between the tape end retaining member 405 and the adhesive member 425.

[0109] More specifically, there can be a gap between the tape end holder 405 and the adhesive member 425, and the seventh driving member 412 drives the first cutter 413 to cut the tape between the tape end holder 405 and the adhesive member 425, so that a section of the tape can be placed on the first adsorption member 427, and the new end of the tape after the tape is cut is held by the tape end holder 405. The entire structure is compact and has high space utilization. The seventh driving member 412 and the first cutter 413 can also be installed in other suitable positions.

[0110] like Figures 17 to 19 As shown, the second movable plate 410 is also installed with an eighth driving member 414, and the eighth driving member 414 is used to drive the pressing block 415 to clamp the rubber-drawing roller 411 or loosen the rubber-drawing roller 411.

[0111] More specifically, during the glue preparation process, after the adhesive tape is attached to the roller surface of the adhesive roller 411 and wound by the adhesive roller 411, the eighth driving member 414 drives the pressing block 415 to clamp the adhesive roller 411, so that the adhesive roller 411 can no longer rotate, so that the adhesive tape will not fall off the adhesive roller 411 in the subsequent process of moving away from the adhesive tape end retaining member 405 along the third direction. When the adhesive roller 411 needs to place the adhesive tape on the first adsorption member 427 and flatten the wound adhesive tape, the eighth driving member 414 drives the pressing block 415 to release the adhesive roller 411, and the adhesive roller 411 can rotate freely, so that the adhesive tape attached and wound on the roller surface of the adhesive roller 411 can be flattened, ensuring the flatness when the adhesive tape is subsequently attached to the material belt.

[0112] like Fig.17 As shown, the tape is conveyed from the tape unwinding member 404 toward the tape end retaining member 405. On the conveying path of the tape, a clamping block 416 is also provided between the tape unwinding member 404 and the tape end retaining member 405. The clamping block 416 is driven by a twelfth driving member 417 to clamp or loosen the tape.

[0113] More specifically, the twelfth driving member 417 may be a clamping cylinder, and the clamping block 416 may be a pair of clamping claws of the clamping cylinder. Alternatively, the twelfth driving member 417 may also be other power sources, and the clamping block 416 may be a pair of sliders, which are driven by the twelfth driving member 417 to move closer to or farther from each other. Before the first cutter 413 cuts the tape, the twelfth driving member may drive the clamping block 416 to clamp the tape, thereby ensuring that the tape will not be pulled out of a new section by the first cutter 413 when being cut, and the tape always remains flat, thereby preventing the tape from being too long when the material tape is subsequently bonded.

[0114] like Fig.17As shown, on the conveying path of the tape, a tensioning roller 418 is also arranged between the tape discharge member 404 and the clamping block 416, and the tensioning roller 418 is installed on the third movable plate 419, and the third movable plate 419 is slidingly matched with the mounting plate 403, and a first elastic member 420 is arranged between the third movable plate 419 and the mounting plate 403 to provide tensioning force.

[0115] More specifically, on the conveying path of the tape, it is necessary to bypass the tensioning roller 418, and the tensioning roller 418 relies on the tensioning force of the first elastic member 420 to always keep the tape in a tensioned state, thereby ensuring that the tape is flat and wrinkle-free, thereby improving the quality of subsequent tape splicing.

[0116] like Fig.17 As shown, on the conveying path of the adhesive tape, a first roller 421 and a second roller 422 are respectively arranged upstream and downstream of the tension roller 418. The two rollers are used to change the conveying direction of the adhesive tape to ensure that the adhesive tape is as flat as possible between the adhesive tape end retainer 405 and the rubber pulling roller 411.

[0117] like Fig.17 As shown, this embodiment shows an adsorption type adhesive tape end holder 405. The adhesive tape end holder 405 has a first adsorption hole 423, and the first adsorption hole 423 is used to adsorb the adhesive tape, so as to keep the end of the adhesive tape on the adhesive tape end holder 405.

[0118] More specifically, the first suction hole 423 may be connected to a negative pressure mechanism, and the tape is sucked onto the tape end retainer 405 by forming a negative pressure near the first suction hole 423 .

[0119] like Fig. 20 As shown, the tape splicing assembly 401 of this embodiment further includes a ninth driving member 424, which can drive the glue sticking member 425 to flip, so that the first adsorption member 427 is in a glue preparation state or a tape splicing state.

[0120] More specifically, the ninth driving member 424 can drive the rubber member 425 to flip by connecting the piston rod of the cylinder to the rubber member 425, or by connecting the rubber member 425 to the motor output shaft. Fig.17 and Fig. 20In the embodiment, the first adsorbent 427 is in a glue preparation state, in which the glue preparation component 402 can place a section of adhesive tape on the first adsorbent 427, and the second adsorbent 426 can adsorb the working tape 203 and / or the spare tape 204. After the ninth driving member 424 drives the glue sticking member 425 to flip, the first adsorbent 427 will be in a tape connection state, at which time the first adsorbent 427 faces the first direction, and at this time the second adsorbent 426 of the other glue sticking mechanism 400 adsorbs the tail end of the working tape and the beginning end of the spare tape, and the first adsorbent 427 of one glue sticking mechanism 400 approaches the second adsorbent 426 of the other glue sticking mechanism 400, so that the adhesive tape bonds the tail end of the working tape and the beginning end of the spare tape together.

[0121] From the above description, it can be seen that the glue preparation, material absorption and bonding of the glue sticking mechanism 400 in this embodiment do not require any manual intervention, have a high degree of automation and high efficiency in tape splicing, and can be achieved by flipping the glue sticking part 425, occupying little space.

[0122] like Fig.17 As shown, when the first adsorbent 427 is in the glue preparation state, the adsorption surface of the first adsorbent 427 is flush with the adsorption surface of the tape end retainer 405 of the glue preparation component 402. In this article, flush can mean that the adsorption surface of the first adsorbent 427 and the adsorption surface of the tape end retainer 405 are in the same plane, or that the adsorption surface of the first adsorbent 427 is slightly higher or lower than the adsorption surface of the tape end retainer 405. For example, the adsorption surface of the first adsorbent 427 is 1mm, 3mm higher than the adsorption surface of the tape end retainer 405, or 1mm, 3mm lower than the adsorption surface of the tape end retainer 405. This height difference is within the allowable error range and can be regarded as the two adsorption surfaces being flush. The flushness of the two adsorption surfaces can ensure that the tape is more flat and the cut length is more accurate.

[0123] like Fig.17 As shown, the first adsorption member 427 has a second adsorption hole 428, and the second adsorption hole 428 is used to adsorb the tape, and the second adsorption member 426 has a third adsorption hole 408, and the third adsorption hole 408 is used to adsorb the material tape. The working principle of the second adsorption hole 428 and the third adsorption hole 408 is the same as that of the first adsorption hole 423, so it will not be described in detail.

[0124] like Fig.17 , Fig.21 As shown, the second adsorption member 426 includes a third adsorption block 4261 and a fourth adsorption block 4262 which are spaced apart from each other, the third adsorption block 4261 is connected to a third vacuum pumping device (not shown), the fourth adsorption block 4262 is connected to a fourth vacuum pumping device (not shown), and the third vacuum pumping device and the fourth vacuum pumping device can work independently.

[0125] More specifically, adsorption holes are provided on the third adsorption block 4261 and the fourth adsorption block 4262. The third adsorption block 4261 is connected to a third vacuum pumping device (not shown), and the fourth adsorption block 4262 is connected to a 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 third adsorption block 4261 and the fourth adsorption block 4262 can generate adsorption force respectively, or generate adsorption force at the same time.

[0126] The whole process of preparing glue from the glue preparation component 402 to the tape connection component 401 is as follows:

[0127] The end of the adhesive tape is adsorbed by the first adsorption hole 423 on the adhesive tape end holder 405, and the first adsorption member 427 of the adhesive member 425 is flush with the adhesive tape end holder 405, and is in a state of adhesive preparation. The fifth driving member 406 drives the first movable plate 407 to move along the third direction so that the adhesive roller 411 is close to the adhesive tape end holder 405. After the adhesive roller 411 arrives above the adhesive tape end holder 405, the sixth driving member 409 drives the second movable plate 410 to move along the second direction so that the adhesive roller 411 abuts against the end of the adhesive tape on the adhesive tape end holder 405. Then the fifth driving member 406 continues to drive the first movable plate 407 to move along the third direction, closer to the clamping block 416, the adhesive roller 411 rotates, the adhesive tape is attached to the roller surface of the adhesive roller 411, and the adhesive roller 411 is wound around a section of adhesive tape. Then, the pressing block 415 clamps the adhesive roller 411 so that it can no longer rotate. Then, the tape end holder 405 no longer absorbs the end of the tape, and the sixth driving member 409 drives the second movable plate 410 to move away from the tape end holder in the second direction, so that the adhesive roller 411 also moves away from the tape end holder 405. Then, the fifth driving member 406 drives the first movable plate 407 to move away from the tape end holder 405 along the third direction, and the tape unloading member 404 rotates, and the tape is pulled out a length. After the first movable plate 407 arrives at the predetermined position, the sixth driving member 409 drives the second movable plate 410 to approach the tape end holder 405 in the second direction, and the first adsorption member 427 of the adhesive member 425 and the tape end holder 405 work to adsorb the tape. The eighth driving member 414 drives the pressing block 415 to release the adhesive roller 411, and the adhesive roller 411 can rotate, and the adhesive tape pasted on the roller surface is flattened onto the first adsorption member 427. Then, the clamping block 416 clamps the tape, and the seventh driving member 412 drives the first cutter 413 to cut the tape between the tape end holder 405 and the glue sticking member 425, so that a section of the tape can be placed on the first adsorption member 427, and the new tape end is adsorbed on the tape end holder 405. Finally, the sixth driving member 409 drives the second moving plate 410 to move away from the tape end holder 405 in the second direction, entering the next glue preparation cycle.

[0128] like Figure 3 , Figures 17 to 21 As shown, the automatic roll changing device 100 in this embodiment includes: a first unwinding shaft 101 and a second unwinding shaft 102, and the first unwinding shaft 101 and the second unwinding shaft 102 are used to load the material roll 205. Among them, 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 400 are arranged opposite to each other. For the sake of clear description, one of them is marked as the first gluing mechanism 429 and the other is marked as the second gluing mechanism 430.

[0129] The tape splicing assembly 401 of the second gluing mechanism 430 is also equipped with a second cutter 431, and the tape splicing assembly 401 of the first gluing mechanism 429 and the tape splicing assembly 401 of the second gluing mechanism 430 can be close to each other, so that the working tape adsorbed by the second adsorbent 426 can be cut by the second cutter 431, or the second cutter 431 can also cut the spare tape. When the second adsorbent 426 of the first gluing mechanism 429 adsorbs the tail end of the working tape and the beginning end of the spare tape, the tape adsorbed by the first adsorbent 427 of the second gluing mechanism 430 can bond the tail end of the working tape 203 and the beginning end of the spare tape 204 together.

[0130] More specifically, the first glue sticking mechanism 429 and the second glue sticking mechanism 430 are arranged opposite to each other, which means that when the glue sticking member 425 of the first glue sticking mechanism 429 is in the glue preparation state and the glue sticking member 425 of the second glue sticking mechanism 430 is also in the glue preparation state, the two second adsorption members 426 are opposite to each other in the first direction. The first direction, the second direction and the third direction intersect each other. The automatic roll changing device in this embodiment does not require manual glue preparation, realizes automatic tape splicing, and improves the roll changing efficiency.

[0131] like Fig. 20 As shown, the automatic roll changing device 100 also includes a fourth movable plate 104 and a tenth driving member 105, the belt connecting assembly 401 of the first gluing mechanism 429 is installed on the fourth movable plate 104, and the tenth driving member 105 drives the fourth movable plate 104 to move close to or away from the belt connecting assembly 401 of the second gluing mechanism 430; and / or, the automatic roll changing device 100 also includes a fifth movable plate 112 and an eleventh driving member 107, the belt connecting assembly 401 of the second gluing mechanism 430 is installed on the fifth movable plate 112, and the eleventh driving member 107 drives the fifth movable plate 112 to move close to or away from the belt connecting assembly 401 of the first gluing mechanism 429, so that the tenth driving member 105 and the eleventh driving member 107 can drive the first gluing mechanism 429 and the second gluing mechanism 430 to move close to or away from each other.

[0132] More specifically, after the standby glue component 402 places the tape on the first adsorption piece 427 of the tape connecting component 401, the first glue applying mechanism 429 and the second glue applying mechanism 430 of the tape connecting component 401 can be driven individually or jointly to move closer to or farther away from each other, so that the second cutter 431 can cut the tape and stick the tape to the tail end of the working tape and the starting end of the standby tape, and the standby material roll 202 is transformed into the working material roll to continue unwinding the tape.

[0133] like Fig. 20 and Fig.21As shown, the tape connecting assembly 401 of the second glue applying mechanism 430 in this embodiment also includes a second elastic member 432, which enables the glue applying member 425 to extend to cover the second cutter 431 or enables the glue applying member 425 to retract to expose the second cutter 431 when subjected to pressure.

[0134] Next, we will combine Figures 1 to 9 , Figures 17 to 21 The automatic roll changing process of the automatic roll changing device in the first embodiment of the present application is described.

[0135] like Figures 3 to 9 As shown, the first unwinding shaft 101 is rotating to unwind the working tape 203, and the working 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 103, the first sensor 103 can detect the starting end position of the working tape 203 on the spare material roll 202 by identifying the sealing glue 206. Alternatively, the starting end 207 of the spare material tape 204 on the spare material roll 202 is ensured to reach the starting position by controlling the rotation angle of the second unwinding shaft 102. Then, the first driving member 302 drives the second driving member 304 to move along the first direction, and the second driving member 304 drives the picking member 303 to move along the second direction. The picking member 303 moves toward the direction close to the spare material roll 202 (correspondingly away from the working material roll 201), and the second picking end 307 of the picking member 303 picks up the starting end 207 at the starting station. Figure 3 Then, the first driving member 302 drives the second driving member 304 to move in the first direction away from the spare material roll 202 (correspondingly close to the working material roll 201), the sealing glue 206 is torn off, 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 tape 204, and the material taking member 303 pulls out the spare material tape 204, as shown in FIG. Figure 6 shown.

[0136] like Figure 6 As shown, the first tape connecting component 401 of the first gluing mechanism 429 and the first tape connecting component 401 of the second gluing mechanism 430 are close to each other, the second cutter 431 cuts the working material tape 203, and the third adsorption block 4261 of the tape connecting component 401 of the second gluing mechanism 430 adsorbs the tail end of the working material tape 203.

[0137] like Figure 7As shown, the first driving member 302 and the second driving member 304 drive the material picking member 303 to arrive at the tape splicing station, and the material picking member 303 brings the starting end 207 to arrive between the first gluing mechanism 429 and the second gluing mechanism 430. At the tape splicing station, the first driving member 302 drives the material picking member 303 to move along the first direction to abut against the tape splicing assembly 401 of the second gluing mechanism 430, and the third adsorption block 4261 and the fourth adsorption block 4262 of the second gluing mechanism 430 work simultaneously, the material picking member 303 stops adsorption, and the spare tape 204 is adsorbed to the second adsorption member 426. Then the third driving member 305 drives the material picking member 303 to move along the third direction to exit the tape splicing station.

[0138] like Figure 8 and Fig.21 As shown, the first driving member 302 drives the material picking member 303 to move in the first direction, the second driving member 304 drives the material picking member 303 to move in the second direction, and the third driving member 305 drives the material picking member 303 to move in the third direction until the material picking member 303 retreats to the initial position. The tape connecting assembly 401 of the first gluing mechanism 429 and the tape connecting assembly 401 of the second gluing mechanism 430 approach each other again, and the second cutter 431 cuts off a section of the spare material tape 204, and the new starting end 207 of the spare material tape 204 is adsorbed onto the fourth adsorption block 4262 of the second gluing mechanism 430. The cut section of the spare material tape 204 (i.e., waste material) is first adsorbed by the third adsorption block 4261 of the first gluing mechanism 429. In this way, the tail end of the working material tape 203 and the starting end of the spare material tape 204 are both adsorbed by the second gluing mechanism 430, while the waste material is adsorbed by the first gluing mechanism 429. Since the cutting position of the second cutter 431 for the spare material tape is fixed, the distance between the tail end of the working material tape and the starting end of the spare material tape is also fixed. The distance between the tail end and the starting end can be regarded as equal to the thickness of the second cutter 431. The subsequent tape connection will be more accurate and the product consistency will be good.

[0139] like Fig. 9 , Fig. 20 , Fig.21 As shown, the ninth driving member 424 of the first gluing mechanism 429 drives the gluing member 425 to flip, and the adhesive tape on the first adsorption member 427 of the first gluing mechanism 429 faces the second gluing mechanism 430. At this time, the third adsorption block 4261 of the first gluing mechanism 429 adsorbing the waste material faces the waste box 108, and the third adsorption block 4261 stops adsorption, and the waste material falls into the waste box 108. Then the two tape connecting assemblies 401 approach each other again, and the adhesive tape on the first adsorption member 427 of the first gluing mechanism 429 adheres the tail end of the working tape 203 adsorbed by the second gluing mechanism 430 and the starting end 207 of the spare tape 204 together.

[0140] Next, the two tape connecting assemblies 401 move away from each other again, and the ninth driving member 424 of the first gluing mechanism 429 drives the gluing member 425 to flip. Then, the two tape connecting assemblies 401 approach each other again, the third adsorption block 4261 and the fourth adsorption block 4262 of the first gluing mechanism 429 work, the third adsorption block 4261 and the fourth adsorption block 4262 of the second gluing mechanism 430 no longer perform adsorption work, and the third adsorption block 4261 and the fourth adsorption block 4262 of the first gluing mechanism 429 adsorb the working material belt 203 and the spare material belt 204. Then the two tape-joining assemblies 401 move away from each other again, the ninth driving member 424 of the second gluing mechanism 430 drives the gluing member 425 to flip, the adhesive tape on the first adsorption member 427 of the second gluing mechanism 430 faces the first gluing mechanism 429, and then the two tape-joining assemblies 401 move toward each other again, and the adhesive tape on the first adsorption member 427 of the second gluing mechanism 430 adheres the tail end of the working tape 203 adsorbed by the first gluing mechanism 429 and the starting end 207 of the spare tape 204 together. In this way, both sides of the working tape 203 and the spare tape 204 are adhered with adhesive tape.

[0141] Finally, the two tape assemblies 401 move away from each other again, the first glue sticking mechanism 429 no longer absorbs the tape, and the spare tape roll 202 continues to unwind the tape for cell winding. At this time, the spare tape roll 202 becomes the working tape roll, and the roll change is completed.

[0142] Next, we will combine Figures 10 to 14 , Figures 17 to 21 The automatic roll changing process of the automatic roll changing device 100 in another embodiment of the present application is described.

[0143] like Fig.10 As shown, since the second unwinding shaft 102 drives the spare material roll 202 to rotate counterclockwise, after the material picking member 303 picks up the starting end 207, the starting end 207 is facing downward.

[0144] like Fig.11 As shown, during the movement of the material picking member 303 toward the tape splicing station, the fourth driving member 308 drives the material picking member 303 to rotate about the third direction, and the second material picking end 307 picking up the starting end 207 turns from facing the right to facing the left, and the spare material tape 204 turns from the state shown by the dotted line to the state shown by the solid line, with the starting end 207 facing upward. The tape splicing component 401 of the first gluing mechanism 429 absorbs the cut working material tape 203.

[0145] like Fig.12 and Fig.13 As shown, the tape splicing assembly 401 of the first glue sticking mechanism 429 absorbs the spare tape 204 and the working tape 203. The material picking piece 303 moves along the third direction to avoid.

[0146] like Fig.14As shown, the cut working tape 203 and spare tape 204 are both adsorbed to the second adsorption component 426 of the first gluing mechanism 429 , and the cut spare tape 204 is adsorbed to the third adsorption block 4261 of the second gluing mechanism 430 .

[0147] Then, the two tape splicing assemblies 401 move away from each other again, the ninth driving member 424 of the second gluing mechanism 430 drives the gluing member 425 to flip, the tape prepared on the first adsorption member 427 of the second gluing mechanism 430 faces the first gluing mechanism 429, the third adsorption block 4261 of the second gluing mechanism 430 stops adsorption, and the cut section of the spare tape 204 falls into the waste box 108. Then, the two tape splicing assemblies 401 move closer to each other again, and the tape prepared on the first adsorption member 427 of the second gluing mechanism 430 bonds the tail end of the working tape 203 adsorbed by the first gluing mechanism 429 and the starting end 207 of the spare tape 204 together.

[0148] Then, the two tape connecting assemblies 401 move away from each other again, and the ninth driving member 424 of the second gluing mechanism 430 drives the gluing member 425 to flip. Then, the two tape connecting assemblies 401 move toward each other again, and the third adsorption block 4261 and the fourth adsorption block 4262 of the second gluing mechanism 430 work, and the third adsorption block 4261 and the fourth adsorption block 4262 of the first gluing mechanism 429 no longer perform adsorption work, and the third adsorption block 4261 and the fourth adsorption block 4262 of the second gluing mechanism 430 adsorb the working material belt 203 and the spare material belt 204. Then the two tape-joining assemblies 401 move away from each other again, the ninth driving member 424 of the first gluing mechanism 429 drives the gluing member 425 to flip, the adhesive tape on the first adsorption member 427 of the first gluing mechanism 429 faces the second gluing mechanism 430, and then the two tape-joining assemblies 401 move toward each other again, and the adhesive tape on the first adsorption member 427 of the first gluing mechanism 429 adheres the tail end of the working tape 203 adsorbed by the second gluing mechanism 430 and the starting end 207 of the spare tape 204 together. In this way, both sides of the working tape 203 and the spare tape 204 are adhered with adhesive tape.

[0149] Finally, the first gluing mechanism 429 and the second gluing mechanism 430 both stop adsorption, and the spare material tape 204 becomes the working material tape 203 to continue winding the battery cell.

[0150] From the above description, we can see that Figures 10 to 14 In the embodiment shown in the figure, a process of rotating the material taking member 303 is added during the transfer process, so it is suitable for the case where the second unwinding shaft 102 rotates counterclockwise. Figures 3 to 9 The illustrated embodiments are similar and therefore will not be described in detail.

[0151] An embodiment of the present application further provides a battery cell winding device, comprising: the automatic roll changing device 100 as described above.

[0152] During the cell winding process, the automatic roll changing device 100 can automatically start, transport and bond the material tape, so the production efficiency of the cell winding equipment is improved and the structure is simpler.

[0153] 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.

[0154] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An automatic roll changing device (100), characterized in that: include: A transfer mechanism (300), wherein the transfer mechanism (300) comprises a material picking member (303), wherein the material picking member (303) is capable of moving between a starting station and a tape connection station to pick up a starting end (207) of a spare material tape (204) on a 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 toward the gluing mechanism (400); The adhesive bonding mechanism (400) comprises a tape splicing assembly (401), which is located at a tape splicing station. The tape splicing assembly (401) can pick up the starting end (207) of the spare tape (204) on the material picking piece (303), so that the adhesive tape can bond the tail end of the working tape (203) and the starting end (207) of the spare tape (204) together.

2. The automatic roll changing device according to claim 1, characterized in that: The transfer mechanism (300) further comprises: A mounting seat (301), wherein a first driving member (302) is mounted on the mounting seat (301); A second driving member (304), the second driving member (304) is connected to the moving end of the first driving member (302), the moving end of the second driving member (304) is connected to the material picking member (303), the first driving member (302) can drive the second driving member (304) to move along the first direction so that the material picking member (303) drives the starting end of the spare material tape (204) to separate from the spare material roll (202), the second driving member (304) can drive the material picking member (303) to move along the second direction so that the material picking member (303) drives the starting end (207) of the spare material tape (204) to reach the tape splicing station, and the first direction intersects with the second direction.

3. The automatic roll changing device according to claim 2, characterized in that: At the belt splicing station, the first driving member (302) can drive the second driving member (304) to move along a first direction so that the material picking member (303) abuts against the belt splicing assembly (401).

4. The automatic roll changing device according to claim 2, characterized in that: The transfer mechanism (300) also includes a third driving member (305), the moving end of the second driving member (304) is connected to the third driving member (305), and the moving end of the third driving member (305) is connected to the material picking member (303), and the third driving member (305) can drive the material picking member (303) to move along a third direction, and the first direction, the second direction and the third direction intersect each other.

5. The automatic roll changing device according to claim 4, characterized in that: The transfer mechanism (300) also includes a fourth driving member (308), the movable end of the third driving member (305) is connected to the fourth driving member (308), the rotating end of the fourth driving member (308) is connected to the material picking member (303), and the fourth driving member (308) can drive the material picking member (303) to rotate around a third direction.

6. The automatic roll changing device according to claim 1, characterized in that: The material picking member (303) has a first material picking end (306) and a second material picking end (307) which are opposite to each other.

7. The automatic roll changing device according to claim 6, characterized in that: The first material picking end (306) and / or the second material picking end (307) of the material picking member (303) has a first adsorption block (309) and a second adsorption block (310) spaced apart from each other in a second 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 any one of claims 2 to 7, characterized in that: It also includes a first sensor (103), 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 sensor (103) is installed at the moving end of the first driving member (302). The first driving member (302) and / or the second driving member (304) and / or the third driving member (305) and / or the fourth driving member (308) drive the material picking member (303) to reach the position of picking up the starting end (207) of the spare material tape (204) on the spare material roll (202) according to the starting end position signal detected by the first sensor (103).

9. The automatic roll changing device according to claim 8, characterized in that: It also includes a second sensor (106), which is used to detect the diameter of the spare material roll (202). The moving end of the first driving member (302) moves to a predetermined position according to the diameter signal detected by the second sensor (106), 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 (103).

10. The automatic roll changing device according to claim 4, characterized in that: It also includes a third sensor (109), which is used to detect the edges of the working material belt (203) and the spare material belt (204). The moving end of the third driving member (305) moves according to the edge signal detected by the third sensor (109) to adjust the position of the material picking member (303) in the third direction, so that the edge of the working material belt (203) is aligned with the edge of the spare material belt (204).

11. The automatic roll changing device according to claim 1, characterized in that: The transfer mechanism (300) further comprises a track (313), and the material picking member (303) can move along the track (313) to reach a starting station or a belt connection station.

12. The automatic roll changing device according to claim 11, characterized in that: The automatic roll-changing device further comprises 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 material rolls; the track (313) comprises a first track (314) and a second track (315), wherein one end of the first track (314) corresponds to the starting position of the first unwinding shaft (101), and the other end of the first track (314) corresponds to the tape splicing position, and one end of the second track (315) corresponds to the starting position of the second unwinding shaft (102), and the other end of the second track (315) corresponds to the tape splicing position.

13. The automatic roll changing device according to claim 1, characterized in that: The glue sticking mechanism (400) further includes a glue preparation component (402); The tape splicing assembly (401) comprises a glue sticking piece (425), and the glue sticking piece (425) comprises a first adsorption piece (427) and a second adsorption piece (426), wherein the first adsorption piece (427) is used for adsorbing the adhesive tape, and the second adsorption piece (426) is used for adsorbing the material tape; The adhesive preparation component (402) is used to place a section of adhesive tape on the first adsorption component (427).

14. The automatic roll changing device according to claim 13, characterized in that: The adhesive preparation component (402) comprises a mounting plate (403), on which a rotatable adhesive tape unwinding member (404), an adhesive tape end retaining member (405) and a fifth driving member (406) are installed. The adhesive tape unwinding member (404) is used to load an adhesive tape roll. The fifth driving member (406) is used to drive the first movable plate (407) to move along a third direction to approach or move away from the adhesive tape end retaining member (405). The first movable plate (407) is installed with a sixth driving member (409), and the sixth driving member (409) is connected to the second movable plate (410). The second movable plate (410) is installed with a rotatable adhesive roller (411), and the adhesive roller (411) is used to wind the adhesive tape. The sixth driving member (409) is used to drive the adhesive roller (411) to move along a second direction to abut against or move away from the adhesive tape end retaining member (405). The second direction intersects the third direction.

15. The automatic roll changing device according to claim 14, characterized in that: The mounting plate (403) is also equipped with a seventh driving member (412), and the seventh driving member (412) is used to drive the first cutter (413) to move to cut the tape, and the first cutter (413) is located between the tape end retaining member (405) and the adhesive member (425).

16. The automatic roll changing device according to claim 14, characterized in that: The second movable plate (410) is also equipped with an eighth driving member (414), and the eighth driving member (414) is used to drive the pressing block (415) to clamp the rubber-pulling roller (411) or loosen the rubber-pulling roller (411).

17. The automatic roll changing device according to claim 13, characterized in that: The tape connection assembly (401) further comprises a ninth driving member (424), which is capable of driving the glue sticking member (425) to flip so that the first adsorption member (427) is in a glue preparation state or in a tape connection state; when the first adsorption member (427) is in the glue preparation state, the adsorption surface of the first adsorption member (427) is flush with the adsorption surface of the tape end retaining member (405) of the glue preparation assembly (402).

18. The automatic roll changing device according to claim 13, characterized in that: The second adsorption component (426) includes a third adsorption block (4261) and a fourth adsorption block (4262) which are spaced apart from each other, the third adsorption block (4261) is connected to a third vacuum pumping device, the fourth adsorption block (4262) is connected to a fourth vacuum pumping device, and the third vacuum pumping device and the fourth vacuum pumping device can work independently.

19. The automatic roll changing device according to claim 13, 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 (400) are arranged opposite to each other, and the tape connection assembly (401) of one of the gluing mechanisms (400) is also equipped with a second cutter (431), and the second cutter (431) can cut the working tape, or can cut the working tape and the spare tape. When one of the gluing mechanisms (400) absorbs the tail end of the working tape and the starting end of the spare tape, the other gluing mechanism (400) can make the absorbed tape bond the tail end of the working tape and the starting end of the spare tape together.

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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