Belt splicing equipment and belt splicing method

Abstract

The invention relates to the technical field of pole piece tape splicing, in particular to tape splicing equipment and a tape splicing method. The tape splicing equipment is used for butting a first pole piece and a second pole piece, and comprises a rack, a first butting device, a second butting device and a gluing device, the first butt joint device comprises a first driving mechanism, a first butt joint piece and a cutting mechanism, the first driving mechanism is connected with the rack and comprises a first moving part capable of moving relative to the rack, and the first butt joint piece and the cutting mechanism are both connected with the first moving part. The second butt-joint device comprises a second butt-joint piece, the second butt-joint piece is used for fixing the second pole piece, and the first moving part moves to enable the first butt-joint piece to be close to or away from the second butt-joint piece. Therefore, the number of the driving parts in the belt connecting equipment can be reduced, the structure of the belt connecting equipment can be simplified, the manufacturing cost of the belt connecting equipment is reduced, and the execution efficiency of the belt connecting equipment is improved.

Description

Technical Field

[0001] This application relates to the field of electrode splicing technology, and in particular to a splicing device and splicing method. Background Technology

[0002] In the battery cell manufacturing process, after a roll of electrode sheets is used up, a splicing device is typically used to connect new and old electrode sheets to ensure processing continuity. Existing splicing devices usually include an adhesive applicator and a swing arm mechanism. The adhesive applicator applies adhesive to the new or old electrode sheet, while the swing arm mechanism has a cutting mechanism and a swing arm. The cutting mechanism cuts off the adhesive portion of the new or old electrode sheet, and the swing arm drives the adhesive portion to bond with another electrode sheet via a swing motion. This process requires the swing arm mechanism to be driven by two-way moving modules, a swing arm drive motor, and a cutting drive motor, involving numerous driving components. This complicates the structure of the splicing device, increasing its cost. Furthermore, it complicates the splicing operation, potentially affecting splicing efficiency. Summary of the Invention

[0003] To address the aforementioned problems, this application provides a tape splicing device and a tape splicing method.

[0004] In a first aspect, embodiments of this application provide a splicing device for splicing a first electrode and a second electrode, and the splicing device includes: frame; The first docking device includes a first driving mechanism, a first docking component, and a cutting mechanism. The first driving mechanism is connected to the frame and includes a first moving part that is movable relative to the frame. The first docking component and the cutting mechanism are both connected to the first moving part. The first docking component is used to fix the first electrode sheet, and the cutting mechanism is used to cut the first electrode sheet. The second docking device includes a second docking member, which is used to fix the second electrode plate. The first moving part moves to make the first docking member move closer to or away from the second docking member. An adhesive application device, which is connected to a frame and is used to apply adhesive to the first electrode and / or the second electrode.

[0005] Optionally, the second docking device includes a second drive mechanism connected to the frame, and the second drive mechanism includes a second moving part movable relative to the frame; The second docking member includes a first sub-component and a second sub-component. The second driving mechanism is disposed between the first docking member and the second sub-component. The first sub-component is connected to the second moving part, and the second sub-component is connected to the frame. The second moving part moves to make the first sub-component and the second sub-component move closer to each other or further away from each other.

[0006] Optionally, the tape receiving device includes a first direction; The second drive mechanism includes a rotating component, and the second moving part includes a transmission chain; two rotating components are arranged at relative intervals along the first direction, the transmission chain is arranged around the two rotating components and meshes with the rotating components, and the first sub-component is fixedly connected to the transmission chain.

[0007] Optionally, the tape receiving device includes a second direction and a third direction, wherein the first direction, the second direction, and the third direction intersect but are not coplanar; The rotating component includes a roller and a sprocket structure. The axial direction of the roller is the same as that of the third direction. A sprocket structure is provided at each end of the roller along the third direction. Two transmission chains are provided and are spaced apart from each other along the third direction. The two transmission chains are respectively engaged with the sprocket structure at one end of the roller. Along the second direction, the first moving part moves to make the first docking member pass through the gap between the two transmission chains and approach the second sub-component.

[0008] Optionally, the second driving mechanism includes a first driving member, the first driving member including a sliding part, the sliding part moving in the same direction as the second direction, and the rotating member being rotatably connected to the sliding part.

[0009] Optionally, the second drive mechanism includes a support structure disposed on the frame, the first drive member is disposed on the support structure, and along the first direction, the support structure is located on the side of the first drive member opposite to the rotating member, and the size of the support structure along the first direction is adjustable.

[0010] Optionally, the second sub-component includes a suction section and a first support. The first support includes a first part, a second part, and a third part. The first part and the third part both extend along the third direction, and the second part extends along the second direction. One end of the first part along the third direction is connected to the frame, and the other end is connected to the end of the second part along the second direction facing away from the second drive mechanism. The third part is connected to the end of the second part along the second direction facing the second drive mechanism, and the suction section is connected to the third part.

[0011] Optionally, the tape receiving device includes a second direction and a third direction, wherein the first direction, the second direction, and the third direction intersect but are not coplanar; The tape-attaching device includes an installation device, and two installation devices are provided, one of which is used to install the first electrode plate and the other is used to install the second electrode plate; The mounting device includes a mounting shaft and a second driving component. The second driving component is connected to the frame, and the mounting shaft is connected to the second driving component. The second driving component drives the mounting shaft to rotate.

[0012] Optionally, the tape receiving device includes a first guide roller, which is connected to the frame and used to contact the second electrode sheet. The second sub-component and the first guide roller are arranged at intervals relative to each other along the first direction, and the first guide roller is located on the side of the second sub-component facing the mounting device along the first direction. The first roller includes a first drum and a second support. The second support includes a fourth part, a fifth part, and a sixth part. The fourth part and the sixth part both extend along the third direction, and the fifth part extends along the second direction. One end of the fourth part along the third direction is connected to the frame, and the other end is connected to the end of the fifth part along the second direction facing away from the second drive mechanism. The sixth part is connected to the end of the fifth part along the second direction facing the second drive mechanism. The first drum is rotatably connected to the sixth part.

[0013] Optionally, the tape-connecting device includes a second roller; along the first direction, the glue-applying device and the mounting device are arranged at intervals relative to each other, and the first docking device is located between the glue-applying device and the mounting device; the second roller is connected to the frame and is used to contact the first electrode sheet, the first docking member and the second roller are arranged at intervals relative to each other along the first direction, and the second roller is located on the side of the first docking member facing the mounting device along the first direction; And / or, the tape-attaching device includes a third guide roller connected to the first moving part and used to contact the first electrode sheet, the first mating member and the third guide roller being spaced apart from each other along the first direction, and the third guide roller being located on the side of the first mating member facing the adhesive applicator along the first direction.

[0014] Secondly, embodiments of this application provide a splicing method, wherein the splicing method connects a first electrode and a second electrode using any of the splicing devices described in the first aspect, and includes: The adhesive is applied to at least one of the first electrode and the second electrode using the adhesive application device; The first electrode is picked up through the first docking member, and the second electrode is picked up through the second docking member; The first driving mechanism brings the first docking member close to the second docking member and docks the first electrode and the second electrode, while the cutting mechanism cuts off the first electrode.

[0015] Optionally, the second docking device includes a second driving mechanism, and the second docking component includes a first sub-component and a second sub-component; The step of picking up the first electrode plate through the first docking member and picking up the second electrode plate through the second docking member includes: The first sub-component picks up the second electrode, and the second driving mechanism drives the first sub-component to move closer to the second sub-component and transfers the second electrode to the second sub-component. Alternatively, the first sub-component picks up the second electrode plate, and the second driving mechanism drives the first sub-component to approach the first docking member.

[0016] In some implementations of this application, the bonding device includes a frame, a first docking device, a second docking device, and an adhesive applicator. The first docking device includes a first drive mechanism, a first docking component, and a cutting mechanism. The first drive mechanism is connected to the frame, and both the first docking component and the cutting mechanism are connected to the first moving part of the first drive mechanism. The second docking device includes a second docking component. When docking the first electrode and the second electrode, the first electrode is fixed to the first docking component, and the second electrode is fixed to the second docking component. The adhesive applicator applies adhesive to the first electrode and / or the second electrode. The cutting mechanism cuts the first electrode. The first moving part moves the first docking component closer to or away from the second docking component to complete the bonding and fixing of the first and second electrode. This allows the first docking component and the cutting mechanism to simultaneously approach the first electrode and complete the pressing and cutting actions by driving the first drive mechanism. Compared to existing bonding devices, this reduces the number of drive components in the bonding device, thus simplifying the structure and reducing the manufacturing cost. Thanks to the simplified structure, the actions of the tape splicing equipment in performing the tape splicing work are also simplified, thereby improving the efficiency of the tape splicing equipment. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A front view of a tape-attaching device provided in some embodiments of this application; Figure 2 Axonometric views of the second docking device and the first roller provided in some embodiments of this application; Figure 3Axonometric views of the second docking device and the second and third rollers provided in some embodiments of this application; Figure 4 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 5 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 6 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 7 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 8 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 9 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 10 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 11 This application provides schematic diagrams illustrating the tape-attaching process of a tape-attaching device in some embodiments. Figure 12 Flowcharts of the splicing methods provided in some embodiments of this application; Reference numerals: 1. Frame; 2. First docking device; 21. First drive mechanism; 211. First moving part; 2111. First extension part; 2112. Second extension part; 2113. Rib plate; 22. First docking piece; 23. Cutting mechanism; 3. Second docking device; 31. Second docking piece; 311. First sub-piece; 312. Second sub-piece; 3121. Suction part; 3122. First support; 31221. First part; 31222. Second part; 31223. Third part; 32. Second drive mechanism 321. Second moving part; 3211. Transmission chain; 322. Rotating component; 3221. Rotating roller; 323. First driving component; 3231. Sliding part; 324. Support structure; 4. Glue application device; 5. Mounting device; 6. First guide roller; 61. First drum; 62. Second bracket; 621. Fourth part; 622. Fifth part; 623. Sixth part; 7. Second guide roller; 8. Third guide roller; 100. First electrode plate; 200. Second electrode plate, Z-first direction; X-second direction; Y-third direction. Detailed Implementation

[0018] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0019] To facilitate handling and feeding, the electrode sheets of the battery cell are usually wound into rolls. During the battery cell manufacturing process, after an old roll of electrode sheets is used up, a splicing device is usually used to connect the head end of the new electrode sheet to the tail end of the old electrode sheet to ensure the continuity of processing.

[0020] Existing splicing devices typically include an adhesive application mechanism and a swing arm mechanism. The adhesive application mechanism applies adhesive to either the new or old electrode sheet, while the swing arm mechanism comprises a cutting mechanism and a swing arm. The cutting mechanism cuts off the adhesive portion of the new or old electrode sheet, and the swing arm, through its oscillating motion, bonds the adhesive portion to another electrode sheet. This process requires the swing arm mechanism to be driven by two-way moving modules, a swing arm drive motor, and a cutting drive motor, involving numerous driving components. This complicates the structure of the splicing device, increasing its manufacturing cost. Furthermore, it complicates the splicing operation, potentially affecting splicing efficiency.

[0021] To address the aforementioned issues, this application provides a tape-attaching device and a tape-attaching method.

[0022] refer to Figure 1 In a first aspect, embodiments of this application provide a splicing device. The splicing device is used to connect a first electrode 100 and a second electrode 200, wherein the first electrode 100 may be a used electrode, and the second electrode 200 may be an unused electrode. The splicing device can cut the first electrode 100 and connect the tail end of the cut first electrode 100 to the head end of the second electrode 200 by adhesive bonding. Specifically, the splicing device includes a frame 1, a first docking device 2, and... Figure 2 The second docking device 3 and the adhesive application device 4 are shown.

[0023] refer to Figure 1 The frame 1 serves as the mounting base for the first docking device 2 and the second docking device 3. In some embodiments of this application, the frame 1 can be a frame structure composed of structural columns, structural beams, etc., or it can be a platform, box, plate, or other structure. The shape and size parameters of the frame 1 can be determined according to actual needs, and will not be elaborated here.

[0024] refer to Figure 3The first docking device 2 is used to pick up and cut the first electrode 100, specifically including a first drive mechanism 21, a first docking component 22, and a cutting mechanism 23. The first drive mechanism 21 is connected to the frame 1 and includes a first moving part 211 that is movable relative to the frame 1. The first docking component 22 and the cutting mechanism 23 are both fixedly connected to the first moving part 211 by means of bonding, fastener connection, welding, etc. Driven by the first drive mechanism 21, the first docking component 22 and the cutting mechanism 23 can move closer to the second docking device 3 to complete the docking operation. The first drive mechanism 21 can be a first cylinder, a first hydraulic cylinder, a first electric cylinder, etc., that outputs linear motion. In this case, the fixed end of the first cylinder, first hydraulic cylinder, first electric cylinder, etc., is fixedly installed on the frame 1 by means of fastener connection, welding, etc., and the first moving part 211 is the telescopic end of the first cylinder, first hydraulic cylinder, first electric cylinder, etc. Alternatively, the first drive mechanism 21 can include a first motor, a first hydraulic motor, a first pneumatic motor, etc., that outputs torque, and a transmission mechanism. For example, the first drive mechanism 21 may include a first motor and a rocker-slider mechanism, wherein the first motor is fixedly connected to the frame 1, the rocker arm of the rocker-slider mechanism is connected to the output shaft of the first motor, and the slider of the rocker-slider mechanism is slidably connected to the frame 1. In this case, the first moving part 211 is the slider, and the first docking member 22 and the cutting mechanism 23 are both fixedly connected to the slider. When the output shaft of the first motor rotates, the rocker arm swings and drives the slider to slide relative to the frame 1. The slider drives the first docking member 22 and the cutting mechanism 23 to move closer to or away from the second docking device 3. The first drive mechanism 21 may also have other options, such as a motor and a lead screw and nut mechanism, which will not be described in detail here.

[0025] refer to Figure 1The first docking member 22 is used to pick up and fix the first electrode 100. In some embodiments of this application, the first docking member 22 is preferably a vacuum suction plate. In this case, the first docking member 22 has a picking surface with a vacuum suction hole. The first docking member 22 can be connected to a vacuum pump, which can extract air from the vacuum suction hole. By extracting air, the picking surface of the first docking member 22 can adsorb and fix the unadhesive surface of the first electrode 100. The cutting mechanism 23 is used to cut the first electrode 100. In some embodiments of this application, the cutting mechanism 23 includes any one of a second cylinder, a second electric cylinder, and a second hydraulic cylinder with linear motion, and a blade. The second cylinder, the second electric cylinder, and the second hydraulic cylinder can drive the blade to move linearly, which facilitates the blade to cut the electrode 100. The blade is slidably connected to the first moving part 211, and the sliding motion direction of the blade is preferably in the same direction as the width direction of the strip of the first electrode 100. To facilitate the installation of the blade, a blade groove can be opened on the first moving part 211, and the extension direction of the blade groove is consistent with the sliding motion direction of the blade. The fixed ends of the second cylinder, second electric cylinder, second hydraulic cylinder, and other mechanisms are fixedly connected to the first moving part 211 through fasteners, welding, or other means. Their telescopic ends are connected to the blade and drive the blade to move along the sliding direction of the blade, so as to facilitate the blade cutting the electrode 100. After the first docking member 22 picks up and fixes the first electrode 100, the blade of the cutting mechanism 23 can move under the drive of the second cylinder, second electric cylinder, second hydraulic cylinder, and other mechanisms to complete the cutting of the first electrode 100.

[0026] refer to Figure 2 The second docking device 3 is used to pick up the second electrode 200, specifically including a second docking member 31. The second docking member 31 is used to pick up and fix the second electrode 200. In some embodiments of this application, the second docking member 31 is also preferably a vacuum suction plate. In this case, the second docking member 31 also has a picking surface with vacuum suction holes. The second docking member 31 can be connected to a vacuum pump, which can extract air from the vacuum suction holes. By extracting air, the picking surface of the second docking member 31 can adsorb the un-adhesive surface of the second electrode 200. The adhesive applicator 4 is used to apply adhesive to at least one of the first electrode 100 and the second electrode 200. The adhesive applicator 4 is fixedly connected to the frame 1 by fasteners, welding, snap-fitting, etc., and applies adhesive to one of the first electrode 100 and the second electrode 200 to facilitate the connection of the first electrode 100 and the second electrode 200.

[0027] In use, adhesive can first be applied to one of the first electrode 100 and the second electrode 200 using the adhesive application device 4. At this time, the first docking member 22 of the first docking device 2 picks up the unadhesive portion of the first electrode 100, and the cutting mechanism 23 of the first docking device 2 cuts the first electrode 100 to form the tail end of the first electrode 100. The second docking member 31 of the second docking device 3 picks up and fixes the head end of the second electrode 200. The moving part of the first driving mechanism 21 moves to bring the first docking member 22 closer to the second docking member 31. At this time, the adhesive portion of the first electrode 100 on the first docking member 22 is attached to the second electrode 200 on the second docking member 31 to complete the connection between the first electrode 100 and the second electrode 200. In this way, by driving the first driving mechanism 21, the first docking member 22 and the cutting mechanism 23 can be simultaneously brought closer to the first electrode 100 to complete the pressing and cutting actions. Compared to existing tape splicing equipment, this reduces the number of driving components, thus simplifying the structure and reducing manufacturing costs. This structural simplification also simplifies the tape splicing process, improving efficiency.

[0028] refer to Figure 2 In some embodiments of this application, optionally, the second docking device 3 includes a second driving mechanism 32. The second driving mechanism 32 is connected to the frame 1 and includes a second moving part 321 movable relative to the frame 1. The second docking member 31 includes a first sub-member 311 and a second sub-member 312. In some embodiments of this application, the first sub-member 311 and the second sub-member 312 are preferably the aforementioned vacuum suction plates. The second driving mechanism 32 is disposed between the first docking member 22 and the second sub-member 312. The first sub-member 311 and the second moving part 321 are fixedly connected by means of bonding, welding, fastener connection, etc., and the second sub-member 312 is fixedly connected to the frame 1 by means of bonding, welding, fastener connection, etc.

[0029] In use, the first electrode 100 and the second electrode 200 can be connected according to their positions relative to the second drive mechanism 32, specifically by using the first sub-component 311, the second sub-component 312, and the first docking member 22. refer to Figure 4Specifically, the splicing device can include a first position and a second position, wherein the first position is located on the side of the second drive mechanism 32 facing the first docking member 22, and the second position is located on the side of the second drive mechanism 32 facing the second sub-member 312. Before splicing begins, the rolled first electrode sheet 100 can be placed in the first position, that is, the rolled first electrode sheet 100 is located on the side of the second drive mechanism 32 facing the first docking member 22. At the same time, the rolled second electrode sheet 200 is placed in the second position, that is, the rolled second electrode sheet 200 is located on the side of the second drive mechanism 32 facing the second sub-member 312. When splicing begins, the splicing device can apply adhesive to the side of the first electrode sheet 100 facing the second drive mechanism 32 through the adhesive application device 4. (Reference) Figure 5 The first docking member 22 picks up the side of the first electrode 100 facing away from the second drive mechanism 32, and the first sub-member 311 can pick up the side of the second electrode 200 facing the second drive mechanism 32, and moves towards the second sub-member 312 under the drive of the second moving part 321. The second sub-member 312 adsorbs and fixes the side of the second electrode 200 facing away from the second drive mechanism 32, so as to transfer and fix the second electrode 200 to itself. (Reference) Figure 6 The first driving mechanism 21 drives the first mating member 22 closer to the second sub-member 312, so that the adhesive-coated side of the first electrode 100 is attached to the second electrode 200. (Reference) Figure 7 The first electrode 100 is cut by the cutting mechanism 23 to form the tail end of the first electrode 100, thereby completing the connection between the first electrode 100 and the second electrode 200. Since the second sub-component 312 is fixedly connected to the frame 1, the second sub-component 312 can provide more stable support to ensure the reliability of the bonding of the first electrode 100 and the second electrode 200.

[0030] refer to Figure 8 The first electrode 100 can also be placed in the aforementioned second position, that is, the rolled first electrode 100 is located on the side of the second drive mechanism 32 facing the second sub-component 312. Simultaneously, the second electrode 200 can also be placed in the aforementioned first position, that is, the rolled second electrode 200 is located on the side of the second drive mechanism 32 facing the first docking member 22. At the start of the connection, the first docking member 22, driven by the first drive mechanism 21, approaches the second sub-component 312 and picks up the side of the first electrode 100 facing the second drive mechanism 32. The splicing device can apply adhesive to the side of the first electrode 100 facing away from the second drive mechanism 32 via the adhesive applicator 4, and the cutting mechanism 23 cuts the first electrode 100. (Reference) Figure 9 The first drive mechanism 21 retracts so that the adhesive-coated side of the first electrode 100 faces the second drive mechanism 32. (Reference) Figure 10The first sub-component 311 moves to the side of the second drive mechanism 32 facing the first docking member 22 and picks up the side of the second electrode 200 facing the second drive mechanism 32. Then, the first sub-component 311 drives the second electrode 200 to move closer to the first docking member 22. The first drive mechanism 21 drives the first docking member 22 to move closer to the first sub-component 311 so that the glued side of the first electrode 100 is in contact with the second electrode 200.

[0031] Based on the arrangement of the first sub-component 311, the second sub-component 312, the second drive mechanism 32, and the first docking component 22, the first electrode 100 and the second electrode 200 can be flexibly arranged, which improves the flexibility of the tape-connecting equipment. Furthermore, during long-term production operations, the positions of the first electrode 100 and the second electrode 200 can be alternately changed. For example, taking a specific operation of the tape-connecting equipment as an example, the first electrode 100 is in the first position, and the second electrode 200 is in the second position. After the first electrode 100 is connected to the second electrode 200, the original second electrode 200 at the second position becomes the new first electrode 100 and continues to supply material, while a new second electrode 200 is added at the first position. As the first electrode 100 is depleted, the second electrode 200 at the first position connects with the first electrode 100 at the second position. This ensures continuous material supply and avoids the impact on production caused by the connection of the first electrode 100 and the second electrode 200.

[0032] refer to Figure 2 In some embodiments of this application, optionally, the receiving device includes a first direction Z. The first direction Z can be a horizontal direction or the direction of gravity, which can be determined according to actual needs. In some embodiments of this application, preferably, the first direction Z is in the same direction as the direction of gravity.

[0033] The second drive mechanism 32 includes rotating members 322, and the second moving part 321 includes a transmission chain 3211. Two rotating members 322 are arranged at relative intervals along the first direction Z, and the transmission chain 3211 is arranged around the two rotating members 322 and meshes with them. At this time, as the rotating members 322 rotate, the transmission chain 3211 can move around the two rotating members 322. The second drive mechanism 32 may also include a mechanism that outputs torque, such as a second motor, a second hydraulic motor, or a second pneumatic motor. The output shaft of the torque-outputting mechanism is fixedly connected to one of the rotating members 322 to drive that rotating member 322 to rotate. The first sub-member 311 is fixedly connected to the transmission chain 3211 by means of bonding, welding, fastener connection, etc. Driven by the transmission chain 3211, the first sub-member 311 can move around the two rotating members 322. In this way, on the one hand, the first sub-component 311 can be moved closer to or further away from the second sub-component 312 by the drive of the transmission chain 3211, so that the second pole piece 200 on the first sub-component 311 can be transferred to the second sub-component 312. On the other hand, the first sub-component 311 can also be moved by the drive of the transmission chain 3211 to the side of the second drive mechanism 32 facing the first docking member 22, so that the first sub-component 311 and the first docking member 22 can connect the first pole piece 100 and the second pole piece 200. Therefore, based on the chain drive mechanism formed by the transmission chain 3211 and the rotating member 322, the first sub-component 311 can more easily achieve the connection of the first pole piece 100 and the second pole piece 200.

[0034] Of course, in some embodiments of this application, the second drive mechanism 32 may also include a rotating member 322 and a transmission belt, with the arrangement of the rotating member 322 and the transmission belt consistent with the aforementioned arrangement of the rotating member 322 and the transmission chain 3211, to form a belt drive mechanism. Alternatively, a rope, leather strap, or the like may be used instead of a transmission belt.

[0035] Optionally, in some embodiments of this application, the receiving device includes a second direction X and a third direction Y, where the first direction Z, the second direction X, and the third direction Y intersect but are not coplanar. In other words, any two of the first direction Z, the second direction X, and the third direction Y intersect, and the included angle between them is an acute angle, an obtuse angle, or a right angle. Preferably, in some embodiments of this application, the first direction Z is in the same direction as the direction of gravity, the second direction X and the third direction Y are two horizontal directions, and the included angle between any two of the first direction Z, the second direction X, and the third direction Y is a right angle.

[0036] The rotating component 322 includes a rotating roller 3221 and a sprocket structure. The axial direction of the rotating roller 3221 is the same as that of the third direction Y, and a sprocket structure is provided at each end of the rotating roller 3221 along the third direction Y. Two transmission chains 3211 are provided and spaced apart relative to each other along the third direction Y. Each of the two transmission chains 3211 meshes with a sprocket structure at one end of the rotating roller 3221. In other words, of the two transmission chains 3211, one transmission chain 3211 meshes with a sprocket structure at the same end of the two rotating components 322 along the third direction Y, and the other transmission chain 3211 meshes with a sprocket structure at the other end of the two rotating components 322 along the third direction Y. When the first moving part 211 moves, it can drive the first docking member 22 to pass through the gap between the two transmission chains 3211 to approach the second sub-component 312. This design avoids interference between the first mating part 22, the first moving part 211, and the second drive mechanism 32. It also distributes the force on each individual transmission chain 3211, preventing it from failing due to breakage. Furthermore, the two transmission chains 3211 provide more connection points with the first sub-part 311, thus ensuring a stable installation of the first sub-part 311.

[0037] refer to Figure 2 In some embodiments of this application, optionally, the second driving mechanism 32 includes a first driving member 323. The first driving member 323 includes a sliding portion 3231, the sliding portion 3231 moving in the same direction as the second direction X, and a rotating member 322 rotatably connected to the sliding portion 3231. Under the drive of the first driving member 323, the sliding portion 3231 can slide relative to the frame 1 along the second direction X, and drive the rotating member 322 and the transmission chain 3211 to slide synchronously along the second direction X. This allows the rotating member 322 and the transmission chain 3211 to move closer to the first docking member 22 or the second sub-member 312 along the second direction X, thus facilitating the first sub-member 311 to move closer to the first docking member 22 or the second sub-member 312 along the second direction X. Based on the above structure, under the drive of the first driving member 323, the first sub-member 311 can move along the second direction X. Under the drive of the transmission chain 3211 and the rotating member 322, the first sub-member 311 can move along the first direction Z, thereby facilitating the first sub-member 311 to pick up the second electrode 200.

[0038] In some embodiments of this application, the first driving member 323 may be a third cylinder, a third electric cylinder, or a third hydraulic cylinder. The third cylinder, third electric cylinder, third hydraulic cylinder, etc., generally have a fixed end and a telescopic end, wherein the fixed end is generally the cylinder body of the third cylinder, third electric cylinder, or third hydraulic cylinder, and the telescopic end may be a rod slidably mounted inside the cylinder body. Alternatively, the first driving member 323 may also be a cylinder guide rail, in which case the fixed end is the guide rail portion of the cylinder guide rail, and the telescopic end is a slider portion slidably mounted on the guide rail portion. In this case, the fixed end of the third cylinder, third electric cylinder, or third hydraulic cylinder is fixedly connected to the frame 1 by fasteners, welding, or other means. The telescopic end of the third cylinder, third electric cylinder, or third hydraulic cylinder serves as a sliding part 3231 connected to the rotating member 322, and the movement direction of the telescopic end of the third cylinder, third electric cylinder, or third hydraulic cylinder is set along the second direction X. When the sliding part 323 slides along the second direction X, the rotating member 322 may translate relative to the frame 1 along the second direction X. The first driving component 323 can also be a combination of a third motor, a third pneumatic motor, a third hydraulic motor, or other torque-outputting mechanism and a transmission mechanism. For example, the first driving component 323 can be a combination of a third motor and a lead screw and nut mechanism. In this case, the third motor is fixedly connected to the frame 1, the lead screw of the lead screw and nut mechanism is fixedly connected to the output end of the third motor and rotates coaxially, the axial direction of the lead screw is in the same direction as the second direction X, the nut of the lead screw and nut mechanism is slidably connected to the frame 1, and the nut of the lead screw and nut mechanism is rotatably connected to the rotating component 322 as a sliding part 3231. Under the drive of the third motor, the nut of the lead screw and nut mechanism can move along the second direction X to drive the rotating component 322 and the transmission chain 3211 to move.

[0039] refer to Figure 2 In some embodiments of this application, preferably, two first driving members 323 are provided, and the sliding portions 3231 of the two first driving members 323 are respectively rotatably connected to a rotating member 322. The two first driving members 323 can move synchronously under the control of a controller or manual operation, so that the two rotating members 322 and the two transmission chains 3211 move synchronously along the second direction X.

[0040] refer to Figure 2 In some embodiments of this application, optionally, the second drive mechanism 32 includes a support structure 324. The support structure 324 is fixedly connected to the frame 1, and the first drive member 323 is fixedly connected to the support structure 324. Along the first direction Z, the support structure 324 is located on the side of the first drive member 323 facing away from the rotating member 322, and the dimension of the support structure 324 along the first direction Z is adjustable. When the dimension of the support structure 324 along the first direction Z changes, the distance between the two rotating members 322 along the first direction Z also changes. In this way, the support structure 324 can be used to adjust the distance between the two rotating members 322 along the first direction Z, thereby ensuring the tension of the transmission chain 3211.

[0041] Specifically, in some embodiments of this application, the support structure 324 can be a telescopic rod. One end of the telescopic rod is fixedly connected to the frame 1, and the other end is fixedly connected to the first driving member 323. The extension direction of the telescopic rod is set along the first direction Z. When the length of the telescopic rod changes, the first driving member 323 will also move along the first direction Z to change the distance between the two rotating members 322. Alternatively, the support structure 324 can also be a leg, which includes an inner leg and an outer leg, with the inner leg nested inside the outer leg. One of the inner leg and the outer leg has multiple fastener holes along the first direction Z, and the inner leg and the outer leg are connected by fasteners. By inserting the fasteners into different fastener holes, the position of the inner leg relative to the outer leg can be adjusted, thereby making the length of the leg along the first direction Z adjustable. During installation, one of the inner leg and the outer leg is fixedly connected to the frame 1, and the other of the inner leg and the outer leg is fixedly connected to the first driving member 323. When the length of the outrigger changes along the first direction Z, the first driving member 323 will also move along the first direction Z to change the distance between the two rotating members 322.

[0042] refer to Figure 2In some embodiments of this application, optionally, the second sub-component 312 includes a suction part 3121 and a first support 3122. The suction part 3121 may be the aforementioned vacuum suction plate. The first support 3122 includes a first portion 31221, a second portion 31222, and a third portion 31223. The first portion 31221 and the third portion 31223 both extend along a third direction Y, while the second portion 31222 extends along a second direction X. One end of the first portion 31221 along the third direction Y is connected to the frame 1, and the other end of the first portion 31221 along the third direction Y is connected to the end of the second portion 31222 along the second direction X facing away from the second drive mechanism 32. The third portion 31223 is connected to the end of the second portion 31222 along the second direction X facing the second drive mechanism 32. The first portion 31221, the second portion 31222, and the third portion 31223 can be fixedly connected by adhesive, welding, or other methods, or they can be connected by integral molding. The suction part 3121 is connected to the third part 31223. While held by the first part 31221, the suction part 3121 can be spaced apart from the frame 1 in the third direction Y to avoid the transmission chain 3211. While held by the second part 31222, the suction part 3121 can extend towards the second drive mechanism 32 in the second direction X. In other words, by using the aforementioned first bracket 3122, interference between the second sub-component 312 and the transmission chain 3211 can be prevented. Furthermore, it facilitates the transfer of the second electrode 200 between the second sub-component 312 and the first sub-component 311, and also facilitates the connection between the second sub-component 312 and the first docking member 22, connecting the first electrode 100 and the second electrode 200.

[0043] In some embodiments of this application, optionally, the receiving device includes a second direction X and a third direction Y, where the first direction Z, the second direction X, and the third direction Y intersect but are not coplanar. In other words, any two of the first direction Z, the second direction X, and the third direction Y intersect, and the included angle between them is an acute angle, an obtuse angle, or a right angle. Preferably, in some embodiments of this application, the first direction Z is in the same direction as the direction of gravity, the second direction X and the third direction Y are two horizontal directions, and the included angle between any two of the first direction Z, the second direction X, and the third direction Y is a right angle.

[0044] refer to Figure 1The tape-attaching device includes an mounting device 5. Two mounting devices 5 are provided, one for mounting the first electrode 100 and the other for mounting the second electrode 200. Each mounting device 5 includes a mounting shaft and a second driving component. The rolled first electrode 100 and the rolled second electrode 200 are respectively mounted on a mounting shaft. The second driving component is connected to the frame 1, and the mounting shaft is connected to the second driving component. Under the drive of the second driving component, the mounting shaft can rotate, thereby driving the first electrode 100 and the second electrode 200 to rotate. The second driving component is preferably a mechanism that outputs torque, such as a fourth motor, a fourth hydraulic motor, or a fourth pneumatic motor.

[0045] During feeding, the second drive component connected to the mounting shaft of the first electrode 100 can rotate in the opposite direction of feeding. At this time, under the tension during feeding and the action of the second drive component, the first electrode 100 can be tightened, which helps ensure the flatness of the first electrode 100 during feeding. During roll changing, after the first electrode 100 is coated with adhesive, the second drive component can drive the first electrode 100 to move, aligning the adhesive-coated portion of the first electrode 100 with the first mating member 22. Under the driving action of the first moving part 211 of the first drive mechanism 21, the first mating member 22 can directly push the adhesive-coated portion of the first electrode 100 into contact with the second electrode 200 to complete the connection.

[0046] Specifically, in some embodiments of this application, the feeding direction of the first electrode 100 is considered the positive direction, and the opposite direction is considered the negative direction. When the first electrode 100 is fed, it experiences a pulling force in the positive direction. At this time, the second driving member can move in the negative direction to tighten the first electrode 100. The adhesive application mechanism can be located upstream of the first docking member 22. When the first electrode 100 is about to run out of material, the adhesive application mechanism applies adhesive to one side of the first electrode 100. Then, the second driving member drives the first electrode 100 to move in the negative direction, so that the adhesive-coated portion of the first electrode 100 can retract in the negative direction to a position aligned with the first docking member 22. Driven by the first driving mechanism 21, the first docking member 22 extends and picks up the uncoated opposite side of the first electrode 100.

[0047] refer to Figure 2 In some embodiments of this application, optionally, the tape receiving device includes a first guide roller 6. The first guide roller 6 is connected to the frame 1 and is used to contact the second electrode 200. The second sub-component 312 is disposed at a distance from the first guide roller 6 along a first direction Z, and the first guide roller 6 is located on the side of the second sub-component 312 facing the mounting device 5 along the first direction Z.

[0048] The first guide roller 6 includes a first roller 61 and a second support 62. The first roller 61 is the portion of the first guide roller 6 that contacts the second electrode 200. The second support 62 includes a fourth part 621, a fifth part 622, and a sixth part 623. The fourth part 621 and the sixth part 623 extend along a third direction Y, while the fifth part 622 extends along a second direction X. One end of the fourth part 621 along the third direction Y is connected to the frame 1, and the other end is connected to the end of the fifth part 622 along the second direction X facing away from the second drive mechanism 32. The sixth part 623 is connected to the end of the fifth part 622 along the second direction X facing the second drive mechanism 32, and the first roller 61 is rotatably connected to the sixth part 623. With the fourth part 621 held in place, the first roller 61 can be spaced apart from the frame 1 along the third direction Y to avoid the transmission chain 3211. With the fifth part 622 held in place, the first roller 61 can extend along the second direction X towards the second drive mechanism 32. In other words, by using the aforementioned second bracket 62, interference between the first guide roller 6 and the transmission chain 3211 can be prevented, and the first roller 61 of the first guide roller 6 can be in an extended state. This allows the first guide roller 6 to provide support for the second electrode 200, preventing it from rubbing against other mechanisms of the tape-connecting device under the pull of the mounting device 5. Therefore, this reduces the frictional resistance of the second electrode 200 during tape connection and prevents scratches and other damage to the second electrode 200 caused by rubbing.

[0049] refer to Figure 1 In some embodiments of this application, optionally, the tape-connecting device includes a second guide roller 7. Along the first direction Z, the glue-applying device 4 and the mounting device 5 are spaced apart relative to each other, and the first docking device 2 is located between the glue-applying device 4 and the mounting device 5. The second guide roller 7 specifically includes a third support and a second roller. The third support is fixedly connected to the frame 1 by fasteners, welding, or other means. The second roller is rotatably connected to the third support and is used to contact the first electrode 100. The first docking member 22 and the second guide roller 7 are spaced apart relative to each other along the first direction Z, and the second guide roller 7 is located on the side of the first docking member 22 facing the mounting device 5 along the first direction Z. This allows the second guide roller 7 to provide support for the first electrode 100, preventing the first electrode 100 from rubbing against other mechanisms of the tape-connecting device under the pull of the mounting device 5. Therefore, this reduces the frictional resistance of the first electrode 100 during tape connection and prevents scratches, abrasions, or other damage to the first electrode 100 caused by rubbing.

[0050] refer to Figure 1The tape-connecting device may further include a third guide roller 8. The third guide roller 8 is connected to the first moving part 211 and is used to contact the first electrode 100. Specifically, the third guide roller 8 includes a third roller rotatably mounted on the first moving part 211. The first mating member 22 and the third guide roller 8 are spaced apart relative to each other along the first direction Z, and the third guide roller 8 is located on the side of the first mating member 22 facing the adhesive applicator 4 along the first direction Z. This allows the third guide roller 8 to provide support for the first electrode 100, preventing it from rubbing against other mechanisms of the tape-connecting device under the pulling force of the feeding. Therefore, this reduces the frictional resistance of the first electrode 100 during tape connection and prevents scratches, abrasions, or other damage to the first electrode 100 caused by rubbing. In some embodiments of this application, the second guide roller 7 and the third guide roller 8 may be provided simultaneously, or only one of them may be provided; further details are omitted here.

[0051] In some embodiments of this application, the first moving part 211 includes a first extension 2111, a second extension 2112, and a stiffener 2113. The first extension 2111 extends along a second direction X, and the second extension 2112 extends along a third direction Y and connects to the first extension 2111. The first mating member 22 and the cutting mechanism 23 are both connected to the second extension 2112. The stiffener 2113 is connected to both the first extension 2111 and the second extension 2112. The first extension 2111, the second extension 2112, and the stiffener 2113 can be welded together, or they can be fixedly connected by integral molding. This ensures the rigidity and strength of the first moving part 211, preventing the first moving part 211 from shaking and affecting the splicing accuracy of the first electrode 100 and the second electrode 200.

[0052] Secondly, embodiments of this application provide a method for attaching a strap. (See reference...) Figure 12 The splicing method described in this application connects the first electrode 100 and the second electrode 200 through any of the splicing devices described in the first aspect, and includes the following steps.

[0053] S100: Apply adhesive to at least one of the first electrode 100 and the second electrode 200 using the adhesive application device 4.

[0054] Specifically, the adhesive application device 4 can apply adhesive to the first electrode 100, the second electrode 200, or both simultaneously. In some embodiments of this application, the adhesive application device 4 applies adhesive to the side of the first electrode 100 facing the second drive mechanism 32.

[0055] S200: Pick up the first electrode 100 through the first docking member 22, and pick up the second electrode 200 through the second docking member 31.

[0056] Specifically, the first docking member 22 extends under the drive of the first driving mechanism 21 and picks up the first electrode 100. The first docking member 22 can be a vacuum suction plate, which picks up the first electrode 100 by adsorbing the uncoated side. When the tape-attaching device includes the mounting device 5, the adhesive application mechanism can be positioned upstream of the first docking member 22. When the first electrode 100 is about to run out, the adhesive application mechanism applies adhesive to one side of the first electrode 100. Then, the second driving member of the mounting device 5 drives the first electrode 100 to move in the negative direction, so that the adhesive-coated part of the first electrode 100 can retract in the negative direction to a position aligned with the first docking member 22. The first docking member 22 extends under the drive of the first driving mechanism 21 and picks up the first electrode 100.

[0057] S300: The first driving mechanism 21 brings the first docking member 22 close to the second docking member 31 and docks the first electrode 100 and the second electrode 200, and the cutting mechanism 23 cuts off the first electrode 100.

[0058] Specifically, the first docking member 22 extends and approaches the second docking member 31 under the drive of the first driving mechanism 21. At this time, the first electrode 100 picked up on the first docking member 22 can fit with the second electrode 200 picked up on the second docking member 31. At the same time, the cutting mechanism 23 cuts the first electrode 100 to complete the connection.

[0059] The above-described splicing method allows the first connecting piece 22 and the cutting mechanism 23 to simultaneously approach the first electrode 100 and complete the pressing and cutting actions by driving the first driving mechanism 21 of the splicing device. This simplifies the splicing process and improves the splicing efficiency of the first electrode 100 and the second electrode 200.

[0060] In some embodiments of this application, optionally, the second docking device 3 includes a second driving mechanism 32, and the second docking member 31 includes a first sub-member 311 and a second sub-member 312.

[0061] The aforementioned step of "picking up the first electrode 100 through the first docking member 22 and picking up the second electrode 200 through the second docking member 31" specifically includes: S201A: The first sub-component 311 picks up the second electrode 200, and the second driving mechanism 32 drives the first sub-component 311 to approach the second sub-component 312 and transfers the second electrode 200 to the second sub-component 312.

[0062] refer to Figure 4Specifically, the splicing device can include a first position and a second position, wherein the first position is located on the side of the second drive mechanism 32 facing the first docking member 22, and the second position is located on the side of the second drive mechanism 32 facing the second sub-member 312. Before splicing begins, the rolled first electrode sheet 100 can be placed in the first position, that is, the rolled first electrode sheet 100 is located on the side of the second drive mechanism 32 facing the first docking member 22. At the same time, the rolled second electrode sheet 200 is placed in the second position, that is, the rolled second electrode sheet 200 is located on the side of the second drive mechanism 32 facing the second sub-member 312. When splicing begins, the splicing device can apply adhesive to the side of the first electrode sheet 100 facing the second drive mechanism 32 through the adhesive application device 4. (Reference) Figure 5 The first docking member 22 picks up the side of the first electrode 100 facing away from the second drive mechanism 32, and the first sub-member 311 can pick up the side of the second electrode 200 facing the second drive mechanism 32, and moves towards the second sub-member 312 under the drive of the second moving part 321. The second sub-member 312 adsorbs and fixes the side of the second electrode 200 facing away from the second drive mechanism 32, so as to transfer and fix the second electrode 200 to itself. (Reference) Figure 6 The first driving mechanism 21 drives the first mating member 22 closer to the second sub-member 312, so that the adhesive-coated side of the first electrode 100 is attached to the second electrode 200. (Reference) Figure 7 The first electrode 100 is cut by the cutting mechanism 23 to form the tail end of the first electrode 100, thereby completing the connection between the first electrode 100 and the second electrode 200. Since the second sub-component 312 is fixedly connected to the frame 1, the second sub-component 312 can provide more stable support to ensure the reliability of the bonding of the first electrode 100 and the second electrode 200.

[0063] Alternatively, S201B: The first sub-component 311 picks up the second electrode 200, and the second driving mechanism 32 drives the first sub-component 311 to approach the first docking member 22.

[0064] Specifically, refer to Figure 8 The first electrode 100 can also be placed in the aforementioned second position, that is, the rolled first electrode 100 is located on the side of the second drive mechanism 32 facing the second sub-component 312. Simultaneously, the second electrode 200 can also be placed in the aforementioned first position, that is, the rolled second electrode 200 is located on the side of the second drive mechanism 32 facing the first docking member 22. At the start of the connection, the first docking member 22, driven by the first drive mechanism 21, approaches the second sub-component 312 and picks up the side of the first electrode 100 facing the second drive mechanism 32. The splicing device can apply adhesive to the side of the first electrode 100 facing away from the second drive mechanism 32 via the adhesive applicator 4, and the cutting mechanism 23 cuts the first electrode 100. (Reference) Figure 9The first drive mechanism 21 retracts so that the adhesive-coated side of the first electrode 100 faces the second drive mechanism 32. (Reference) Figure 10 The first sub-component 311 moves to the side of the second drive mechanism 32 facing the first docking member 22 and picks up the side of the second electrode 200 facing the second drive mechanism 32. Then, the first sub-component 311 drives the second electrode 200 closer to the first docking member 22. The first drive mechanism 21 drives the first docking member 22 closer to the first sub-component 311, so that the adhesive-coated side of the first electrode 100 is in contact with the second electrode 200. (Reference) Figure 11 At this point, the connection between the first electrode 100 and the second electrode 200 is completed.

[0065] This improves the flexibility of the connection, and the positions of the first electrode 100 and the second electrode 200 can be alternated during long-term production operations. This ensures continuous material supply and avoids the impact on production caused by the connection of the first electrode 100 and the second electrode 200.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0067] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or at least two of the features. In the description of this invention, unless otherwise stated, "at least two" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0068] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "left", "right", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0069] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or at least two embodiments or examples.

[0071] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A tape-connecting device, characterized in that, The splicing device is used to connect the first electrode (100) and the second electrode (200), and includes: Rack (1); The first docking device (2) includes a first driving mechanism (21), a first docking component (22), and a cutting mechanism (23). The first driving mechanism (21) is connected to the frame (1). The first driving mechanism (21) includes a first moving part (211) that is movable relative to the frame (1). The first docking component (22) and the cutting mechanism (23) are both connected to the first moving part (211). The first docking component (22) is used to fix the first electrode (100), and the cutting mechanism (23) is used to cut the first electrode (100). The second docking device (3) includes a second docking member (31), which is used to fix the second electrode plate (200). The first moving part (211) moves to make the first docking member (22) move closer to or further away from the second docking member (31). An adhesive applicator (4) is connected to the frame (1) and is used to apply adhesive to the first electrode (100) and / or the second electrode (200).

2. The tape-connecting device according to claim 1, characterized in that, The second docking device (3) includes a second drive mechanism (32), which is connected to the frame (1). The second drive mechanism (32) includes a second moving part (321) that is movable relative to the frame (1). The second docking member (31) includes a first sub-part (311) and a second sub-part (312). The second driving mechanism (32) is disposed between the first docking member (22) and the second sub-part (312). The first sub-part (311) is connected to the second moving part (321), and the second sub-part (312) is connected to the frame (1). The second moving part (321) moves to make the first sub-part (311) and the second sub-part (312) move closer to each other or further away from each other.

3. The tape-connecting device according to claim 2, characterized in that, The receiving device includes a first direction (Z); The second drive mechanism (32) includes a rotating member (322), and the second moving part (321) includes a transmission chain (3211). Two rotating members (322) are arranged at relative intervals along the first direction (Z). The transmission chain (3211) is arranged around the two rotating members (322) and meshes with the rotating members (322). The first sub-part (311) is fixedly connected to the transmission chain (3211).

4. The tape-connecting device according to claim 3, characterized in that, The receiving device includes a second direction (X) and a third direction (Y), wherein the first direction (Z), the second direction (X), and the third direction (Y) intersect but are not coplanar; The rotating component (322) includes a rotating roller (3221) and a sprocket structure. The axial direction of the rotating roller (3221) is the same as that of the third direction (Y). A sprocket structure is provided at each end of the rotating roller (3221) along the third direction (Y). Two transmission chains (3211) are provided and are arranged at intervals relative to each other along the third direction (Y). The two transmission chains (3211) respectively mesh with the sprocket structure at one end of the rotating roller (3221). Along the second direction (X), the first moving part (211) moves to make the first docking part (22) pass through the interval between the two transmission chains (3211) and approach the second sub-part (312).

5. The tape-connecting device according to claim 4, characterized in that, The second driving mechanism (32) includes a first driving member (323), the first driving member (323) includes a sliding part (3231), the sliding part (3231) moves in the same direction as the second direction (X), and the rotating member (322) is rotatably connected to the sliding part (3231).

6. The tape-connecting device according to claim 5, characterized in that, The second drive mechanism (32) includes a support structure (324) disposed on the frame (1), and the first drive member (323) disposed on the support structure (324). Along the first direction (Z), the support structure (324) is located on the side of the first drive member (323) facing away from the rotating member (322), and the size of the support structure (324) along the first direction (Z) is adjustable.

7. The tape-connecting device according to claim 4, characterized in that, The second sub-component (312) includes a suction part (3121) and a first bracket (3122). The first bracket (3122) includes a first part (31221), a second part (31222), and a third part (31223). The first part (31221) and the third part (31223) both extend along the third direction (Y). The second part (31222) extends along the second direction (X). One end of the first part (31221) along the third direction (Y) is connected to the frame (1), and the other end is connected to one end of the second part (31222) along the second direction (X) away from the second drive mechanism (32). The third part (31223) is connected to one end of the second part (31222) along the second direction (X) towards the second drive mechanism (32). The suction part (3121) is connected to the third part (31223).

8. The tape-connecting device according to any one of claims 1-7, characterized in that, The receiving device includes a second direction (X) and a third direction (Y), wherein the first direction (Z), the second direction (X), and the third direction (Y) intersect but are not coplanar; The tape-connecting device includes an installation device (5), and there are two installation devices (5), one of which is used to install the first electrode (100) and the other of which is used to install the second electrode (200). The mounting device (5) includes a mounting shaft and a second driving member. The second driving member is connected to the frame (1). The mounting shaft is connected to the second driving member, and the second driving member drives the mounting shaft to rotate.

9. The tape-connecting device according to claim 8, characterized in that, The tape receiving device includes a first guide roller (6), which is connected to the frame (1) and is used to contact the second electrode (200). The second sub-component (312) is arranged at a distance from the first guide roller (6) along the first direction (Z), and the first guide roller (6) is located on the side of the second sub-component (312) facing the mounting device (5) along the first direction (Z). The first roller (6) includes a first roller (61) and a second support (62). The second support (62) includes a fourth part (621), a fifth part (622) and a sixth part (623). The fourth part (621) and the sixth part (623) both extend along the third direction (Y), and the fifth part (622) extends along the second direction (X). One end of the fourth part (621) along the third direction (Y) is connected to the frame (1), and the other end is connected to one end of the fifth part (622) along the second direction (X) away from the second drive mechanism (32). The sixth part (623) is connected to one end of the fifth part (622) along the second direction (X) towards the second drive mechanism (32), and the first roller (61) is rotatably connected to the sixth part (623).

10. The tape-connecting device according to claim 8, characterized in that, The tape-connecting device includes a second roller (7); along the first direction (Z), the glue-applying device (4) and the mounting device (5) are arranged at intervals relative to each other, and the first docking device (2) is located between the glue-applying device (4) and the mounting device (5); the second roller (7) is connected to the frame (1) and is used to contact the first electrode (100), the first docking member (22) and the second roller (7) are arranged at intervals relative to each other along the first direction (Z), and the second roller (7) is located on the side of the first docking member (22) facing the mounting device (5) along the first direction (Z); And / or, the tape-attaching device includes a third roller (8) connected to the first moving part (211) and used to contact the first electrode (100), the first docking member (22) and the third roller (8) are arranged at intervals relative to each other along the first direction (Z), and the third roller (8) is located on the side of the first docking member (22) facing the adhesive applicator (4) along the first direction (Z).

11. A method for splicing straps, characterized in that, The method connects the first electrode (100) and the second electrode (200) using the splicing device according to any one of claims 1-10, and includes: The adhesive is applied to at least one of the first electrode (100) and the second electrode (200) by the adhesive application device (4); The first electrode (100) is picked up through the first docking member (22), and the second electrode (200) is picked up through the second docking member (31). The first driving mechanism (21) brings the first docking member (22) close to the second docking member (31) and docks the first electrode (100) and the second electrode (200), and the cutting mechanism (23) cuts off the first electrode (100).

12. The splicing method according to claim 11, characterized in that, The second docking device (3) includes a second drive mechanism (32), and the second docking member (31) includes a first sub-member (311) and a second sub-member (312). The step of picking up the first electrode (100) through the first docking member (22) and picking up the second electrode (200) through the second docking member (31) includes: The first sub-component (311) picks up the second electrode (200), and the second driving mechanism (32) drives the first sub-component (311) to approach the second sub-component (312) and transfers the second electrode (200) to the second sub-component (312); Alternatively, the first sub-component (311) picks up the second pole piece (200), and the second driving mechanism (32) drives the first sub-component (311) to approach the first docking member (22).

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