Spool changing and taping device and pole piece processing device

Abstract

The application discloses a roll changing and tape connecting device and a pole piece processing device, and relates to the technical field of lithium battery pole piece processing. The roll changing and tape connecting device comprises a first unwinding mechanism, a second unwinding mechanism, a tape cutting mechanism, a tape connecting mechanism and the like. The first unwinding mechanism is used for releasing a first tape. The second unwinding mechanism is used for releasing a second tape. The tape cutting mechanism comprises a first suction accessory and a cutter assembly. The first suction accessory is provided with a first opening. The cutter assembly is arranged in the first opening. The first suction accessory is used for adsorbing the first tape. The tape connecting mechanism comprises a second suction accessory and a tape connecting assembly. The second suction accessory is provided with a second opening. The tape connecting assembly is arranged in the second opening. The second suction accessory is used for adsorbing the second tape. The first opening is opposite to the second opening. The cutter assembly is used for cutting off the first tape and the second tape and connecting part of the first tape and part of the second tape through the tape connecting assembly, so that automatic cutting and automatic tape connecting are realized, and then automatic roll changing without stopping is realized, and the production efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of lithium battery electrode processing technology, and particularly relates to a winding and splicing device and an electrode processing device. Background Technology

[0002] In the existing technology, the production of lithium battery electrode sheets uses a laser die-cutting machine with dual unwinding stations, but the machine needs to be stopped and the tape needs to be picked up manually when changing rolls, which reduces production efficiency by about 20%-30%.

[0003] In the lithium battery electrode manufacturing industry, dual-station unwinding laser die-cutting equipment has been widely used. However, in these technologies, when the electrode roll at the main unwinding station is exhausted, the equipment must stop operating, and operators must manually splice the old and new rolls. This process leads to production interruptions and affects overall production efficiency. Utility Model Content

[0004] This application aims to provide a roll-changing and splicing device and an electrode processing device, which can solve the problems of production interruption and low production efficiency caused by the need for operators to manually complete the splicing of new and old rolls when the electrode rolls are exhausted in the prior art.

[0005] To solve the above-mentioned technical problems, in a first aspect, this utility model discloses a tape-changing and splicing device, comprising:

[0006] A first unwinding mechanism is used to release a first strip of material; a second unwinding mechanism is used to release a second strip of material.

[0007] A tape cutting mechanism, comprising a first adsorption element and a cutting blade assembly, wherein the first adsorption element has a first opening and the cutting blade assembly passes through the first opening, and the first adsorption element is used to adsorb the first tape.

[0008] A tape-receiving mechanism, comprising a second adsorption element and a tape-receiving assembly, wherein the second adsorption element has a second opening and the tape-receiving assembly passes through the second opening, and the second adsorption element is used to adsorb a second tape.

[0009] The first opening and the second opening are disposed opposite to each other. The cutting assembly is used to cut the first strip and the second strip, and the connecting assembly connects a portion of the first strip and a portion of the second strip.

[0010] In some embodiments, the tape switching and splicing device has a first direction and a second direction that are perpendicular to each other;

[0011] The cutting mechanism further includes a first base, which is disposed on one side of the first unwinding mechanism along the first direction. The first adsorption member is movably connected to the first base along the second direction. The first adsorption member is also provided with a first adsorption part and a second adsorption part. The first adsorption part and the second adsorption part are respectively disposed on both sides of the first opening along the first direction, and the first adsorption part is located on the side of the second adsorption part away from the first unwinding mechanism.

[0012] The tape receiving mechanism further includes a second base, which is disposed on one side of the second unwinding mechanism along the first direction. The second adsorption member is movably connected to the second base along the second direction. The second adsorption member is also provided with a third adsorption part and a fourth adsorption part. The third adsorption part and the fourth adsorption part are respectively disposed on both sides of the second opening along the first direction, and the third adsorption part is located on the side of the fourth adsorption part away from the second unwinding mechanism.

[0013] The cutting assembly is used to cut the first material strip adsorbed by the first adsorption part and the second adsorption part, and the second material strip adsorbed by the third adsorption part and the fourth adsorption part, and to connect the portion of the first material strip adsorbed by the second adsorption part to the portion of the second material strip adsorbed by the third adsorption part through the tape-connecting assembly, or to connect the portion of the first material strip adsorbed by the first adsorption part to the portion of the second material strip adsorbed by the third adsorption part.

[0014] In some embodiments, the tape assembly includes: a first drive member and an adhesive plate;

[0015] The first driving component is connected to the second base, the adhesive plate is connected to the first driving component, and the adhesive plate passes through the second opening for adsorbing the adhesive strip;

[0016] The first driving member is used to drive the adhesive plate to move along the second direction so as to connect a portion of the first material strip and a portion of the second material strip through the adhesive strip.

[0017] In some embodiments, the tape reel splicing device further has a third direction that is perpendicular to the first direction and the second direction respectively, and the tape reel splicing device further includes a glue preparation mechanism, which includes: a glue feeding suction plate, a glue feeding assembly, and a second drive component;

[0018] The adhesive feeding suction plate is located on one side of the second adsorption member along the third direction, and the second adsorption member has a third opening on the side facing the adhesive feeding suction plate, and the third opening communicates with the second opening;

[0019] The adhesive feeding assembly is used to release the adhesive tape so that the tape passes through the adhesive feeding suction plate. One side of the adhesive tape is provided with an adhesive strip, and the adhesive feeding suction plate can attract the adhesive strip.

[0020] The second driving member is connected to the glue feeding suction plate and is used to drive the glue feeding suction plate to move along the third direction so that the glue feeding suction plate passes through the third opening and approaches the adhesive plate.

[0021] In some embodiments, the cutter assembly includes: a cutter and a third drive member;

[0022] The cutter passes through the first opening, the third driving member is connected to the first base, the cutter is connected to the third driving member, and the third driving member is used to drive the cutter to move along the second direction so as to cut the first material strip adsorbed by the first adsorption part and the second adsorption part and the second material strip adsorbed by the third adsorption part and the fourth adsorption part.

[0023] In some embodiments, the slicing mechanism further includes a fourth driving member, the fourth driving member being connected to the first base, the first adsorption member being connected to the fourth driving member, and the fourth driving member being used to drive the first adsorption member to move along the second direction;

[0024] The attaching mechanism further includes a fifth driving member, which is connected to the second base. The second adsorption member is connected to the fifth driving member, and the fifth driving member is used to drive the second adsorption member to move along the second direction.

[0025] In some embodiments, it further includes: a detection element and a control element.

[0026] The detection element is disposed on one side of the first unwinding mechanism and is used to detect the winding amount of the first strip in the first unwinding mechanism; and / or, the detection element is disposed on one side of the second unwinding mechanism and is used to detect the winding amount of the second strip in the second unwinding mechanism.

[0027] The control unit is electrically connected to the detection unit, the first drive unit, the second drive unit, the third drive unit, the fourth drive unit, and the fifth drive unit, respectively, and is used to control the operation of the first drive unit, the second drive unit, the third drive unit, the fourth drive unit, and the fifth drive unit based on the detection result of the detection unit.

[0028] In some embodiments, the first adsorption member is provided with a first negative pressure chamber and a second negative pressure chamber that are spaced apart from each other, the first adsorption part is provided with a plurality of first adsorption holes arranged at intervals, the second adsorption part is provided with a plurality of second adsorption holes arranged at intervals, the first adsorption holes are connected to the first negative pressure chamber, and the second adsorption holes are connected to the second negative pressure chamber.

[0029] And / or, the second adsorption element is provided with a third negative pressure chamber and a fourth negative pressure chamber that are spaced apart from each other, the third adsorption part is provided with a plurality of third adsorption holes arranged at intervals, the fourth adsorption part is provided with a plurality of fourth adsorption holes arranged at intervals, the third adsorption holes are connected to the third negative pressure chamber, and the fourth adsorption holes are connected to the fourth negative pressure chamber.

[0030] In some embodiments, the device further includes: a first roller assembly, which is disposed on both sides of the cutting mechanism, and is used to wind the first strip so that the first strip passes through the cutting mechanism;

[0031] And / or, the second roller assembly is disposed on both sides of the belt receiving mechanism, and the second roller assembly is used to wind the second material belt so that the second material belt passes through the belt receiving mechanism.

[0032] Secondly, this utility model discloses an electrode processing device, including the winding and splicing device described above.

[0033] This utility model discloses a tape-changing and splicing device comprising: a first unwinding mechanism for releasing a first tape; a second unwinding mechanism for releasing a second tape; a tape-cutting mechanism comprising a first suction member and a cutter assembly, the first suction member having a first opening, the cutter assembly passing through the first opening, the first suction member for adsorbing the first tape; and a tape-splitting mechanism comprising a second suction member and a tape-splitting assembly, the second suction member having a second opening, the tape-splitting assembly passing through the second opening, the second suction member for adsorbing the second tape; the first opening and the second opening are arranged opposite to each other, the cutter assembly is used to cut the first tape and the second tape, and the tape-splitting assembly connects a portion of the first tape and a portion of the second tape.

[0034] In the tape changing and splicing device disclosed in this application embodiment, a first tape is released by a first unwinding mechanism, a second tape is released by a second unwinding mechanism, a first adsorption element adsorbs the first tape, a second adsorption element adsorbs the second tape, a cutting assembly cuts the first tape adsorbed by the first adsorption element and the second tape adsorbed by the second adsorption element, and then a splicing assembly connects part of the first tape and part of the second tape to achieve automatic cutting and automatic splicing, thereby realizing automatic tape changing without stopping the machine and improving production efficiency.

[0035] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0036] 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:

[0037] Figure 1 This is a schematic diagram of the structure of the tape changing and splicing device according to an embodiment of this application;

[0038] Figure 2 This is a schematic diagram of the slicing mechanism according to an embodiment of this application;

[0039] Figure 3 This is a schematic diagram of the receiving mechanism according to an embodiment of this application;

[0040] Figure 4 This is a schematic diagram of the adhesive preparation mechanism according to an embodiment of this application.

[0041] Figure label:

[0042] 1. First unwinding mechanism; 11. First material strip;

[0043] 2. Second unwinding mechanism; 21. Second material strip;

[0044] 3. Cutting mechanism; 31. First adsorption element; 311. First adsorption part; 3111. First adsorption hole; 312. Second adsorption part; 3121. Second adsorption hole; 313. Fourth driving element; 32. Cutting blade assembly; 321. Cutting blade; 322. Third driving element; 33. First opening; 34. First base;

[0045] 4. Tape-attaching mechanism; 41. Second adsorption component; 411. Third adsorption part; 4111. Third adsorption hole; 412. Fourth adsorption part; 4121. Fourth adsorption hole; 413. Fifth driving component; 42. Tape-attaching assembly; 421. First driving component; 422. Adhesive plate; 43. Second opening; 44. Second base; 45. Third opening;

[0046] 5. Glue preparation mechanism; 51. Glue feeding suction plate; 52. Second drive component; 53. Glue feeding assembly; 54. Glue strip;

[0047] 6. Inspection items;

[0048] 7. Control components;

[0049] 8. First roller assembly;

[0050] 9. Second roller assembly;

[0051] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0052] The embodiments of this application 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 this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0053] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0054] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0055] In the description of this application, it should be noted that, unless otherwise expressly 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] Before explaining the tape switching and splicing device provided in the embodiments of this application, the application scenarios of the tape switching and splicing device provided in the embodiments of this application will be specifically described:

[0057] In the continuous production of lithium battery electrodes, although current production lines have both main and auxiliary unwinding stations, they still suffer from low efficiency in actual operation. This is because when the electrode roll at the main unwinding station is about to run out, the equipment must be stopped, and workers must manually align the end of the new roll with the tail of the nearly used old roll, using tape to bond them together. This inevitably causes production interruptions with each roll change, reducing efficiency. Furthermore, the quality stability of manual splicing is difficult to guarantee; alignment deviations are prone to occur when aligning the new and old rolls, and manual operation can easily introduce impurities, contaminating the electrodes.

[0058] Therefore, this application provides a tape changer and splicing device. The tape changer and splicing device provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0059] like Figures 1-3 As shown, the tape changing and splicing device of this application embodiment includes a first unwinding mechanism 1, a second unwinding mechanism 2, a tape cutting mechanism 3, and a tape splicing mechanism 4. The first unwinding mechanism 1 is used to release a first tape 11; the second unwinding mechanism 2 is used to release a second tape 21; the tape cutting mechanism 3 includes a first suction member 31 and a cutter assembly 32. The first suction member 31 has a first opening 33, and the cutter assembly 32 passes through the first opening 33. The first suction member 31 is used to suction the first tape 11; the tape splicing mechanism 4 includes a second suction member 41 and a tape splicing assembly 42. The second suction member 41 has a second opening 43, and the tape splicing assembly 42 passes through the second opening 43. The second suction member 41 is used to suction the second tape 21.

[0060] The first opening 33 and the second opening 43 are arranged opposite to each other. The cutter assembly 32 is used to cut the first material strip 11 and the second material strip 21, and to connect a portion of the first material strip 11 and a portion of the second material strip 21 through the connecting assembly 42.

[0061] In this embodiment, the first unwinding mechanism 1 releases the first strip 11, the second unwinding mechanism 2 releases the second strip 21, the first adsorption member 31 adsorbs the first strip 11, the second adsorption member 41 adsorbs the second strip 21, the cutter assembly 32 cuts the first strip 11 adsorbed by the first adsorption member 31 and the second strip 21 adsorbed by the second adsorption member 41, and then the strip splicing assembly 42 connects part of the first strip 11 and part of the second strip 21 to realize automatic cutting and automatic splicing of the strips, thereby realizing automatic roll changing without stopping the machine and improving production efficiency.

[0062] It should be noted that both the first unwinding mechanism 1 and the second unwinding mechanism 2 are equipped with air expansion shafts. The material roll is sleeved on the outside of the air expansion shaft, and the air expansion shaft tightly fixes the inner wall of the material roll through expansion and releases the material strip during rotation. Specifically, the first material strip 11 is sleeved on the air expansion shaft of the first unwinding mechanism 1, and the second material strip 21 is sleeved on the air expansion shaft of the second unwinding mechanism 2. The first material strip 11 and the second material strip 21 are arranged along different paths: the first material strip 11 extends to the electrode processing equipment through the strip cutting mechanism 3, and the second material strip 21 is fixed after passing through the strip splicing mechanism 4.

[0063] The first suction member 31 and the cutter assembly 32 of the tape cutting mechanism 3 can be integrated as one unit or set independently. The first suction member 31 is responsible for suctioning the first tape 11 and has a first opening 33. The cutter assembly 32 extends from the first opening 33 and performs the action of cutting the tape. The second suction member 41 and the tape receiving assembly 42 of the tape receiving mechanism 4 can be integrated as one unit or set independently. The second suction member 41 is responsible for suctioning the second tape 21 and has a second opening 43. The first opening 33 and the second opening 43 are opposite to each other. After cutting the tape, the tape receiving assembly 42 extends from the second opening 43 to complete the action of connecting the tape.

[0064] In actual operation, when the first strip 11 is supplied to the electrode processing equipment through the first unwinding mechanism 1, if insufficient amount of the first strip 11 is detected, the first adsorption element 31 of the cutting mechanism 3 adsorbs the first strip 11, and the second adsorption element 41 of the splicing mechanism 4 adsorbs the second strip 21. Subsequently, the cutting assembly 32 actuates to cut the first strip 11 and the second strip 21. Immediately afterwards, the splicing assembly 42 connects a portion of the first strip and a portion of the second strip to complete the splicing operation, thereby completing the roll change and splicing operation and ensuring a continuous supply of strips.

[0065] In some embodiments, such as Figure 2 and Figure 3 As shown, the tape changing and splicing device has a first direction X and a second direction Y that are perpendicular to each other. The tape cutting mechanism 3 also includes a first base 34, which is disposed on one side of the first unwinding mechanism 1 along the first direction X. The first adsorption member 31 is movably connected to the first base 34 along the second direction Y. The first adsorption member 31 is also provided with a first adsorption part 311 and a second adsorption part 312. The first adsorption part 311 and the second adsorption part 312 are respectively disposed on both sides of the first opening 33 along the first direction X, and the first adsorption part 311 is located on the side of the second adsorption part 312 away from the first unwinding mechanism 1.

[0066] The tape receiving mechanism 4 also includes a second base 44, which is located on one side of the second unwinding mechanism 2 along the first direction X. The second adsorption member 41 is movably connected to the second base 44 along the second direction Y. The second adsorption member 41 is also provided with a third adsorption part 411 and a fourth adsorption part 412. The third adsorption part 411 and the fourth adsorption part 412 are respectively located on both sides of the second opening 43 along the first direction X, and the third adsorption part 411 is located on the side of the fourth adsorption part 412 away from the second unwinding mechanism 2.

[0067] The cutting assembly 32 is used to cut the first material strip 11 adsorbed by the first adsorption part 311 and the second adsorption part 312 and the second material strip 21 adsorbed by the third adsorption part 411 and the fourth adsorption part 412, and to connect the portion of the first material strip adsorbed by the second adsorption part 312 with the portion of the second material strip adsorbed by the third adsorption part 411 through the tape-connecting assembly 42, or to connect the portion of the first material strip adsorbed by the first adsorption part 311 with the portion of the second material strip adsorbed by the third adsorption part 411.

[0068] In this embodiment, both the first adsorption member 31 and the second adsorption member 41 adopt a partitioned design to ensure that they only adsorb the required material strip. Specifically, the first adsorption member 31 includes a first adsorption part 311 and a second adsorption part 312, which are located on both sides of the first opening 33 along the first direction X. The first adsorption part 311 is located on the side of the second adsorption part 312 away from the first unwinding mechanism 1, so as to ensure that when the tape is spliced, the first adsorption part 311 is responsible for adsorbing the downstream portion of the first material strip, while the second adsorption part 312 adsorbs the upstream portion of the first material strip.

[0069] Similarly, the second adsorption member 41 includes a third adsorption part 411 and a fourth adsorption part 412. The third adsorption part 411 and the fourth adsorption part 412 are respectively disposed on both sides of the second opening 43 along the first direction X, and the third adsorption part 411 is located on the side of the fourth adsorption part 412 away from the second unwinding mechanism 2, so as to ensure that when the tape is spliced, the third adsorption part 411 is responsible for adsorbing the downstream part of the second tape, while the fourth adsorption part 412 adsorbs the upstream part of the second tape.

[0070] It should be noted that, along the first direction X, the area between the first unwinding mechanism 1 and the first opening 33 is the upstream, and the side of the first opening 33 away from the first unwinding mechanism 1 is the downstream. Similarly, along the first direction X, the area between the second unwinding mechanism 2 and the second opening 43 is the upstream, and the side of the second opening 43 away from the second unwinding mechanism 2 is the downstream.

[0071] In practical applications, when the first strip 11 is supplied to the electrode processing equipment via the first unwinding mechanism 1, an automatic roll-changing and splicing process is initiated when insufficient remaining amount of the first strip 11 is detected: First, the first adsorption part 311 and the second adsorption part 312 of the cutting mechanism 3 adsorb the first strip 11, and the third adsorption part 411 and the fourth adsorption part 412 of the splicing mechanism 4 adsorb the second strip 21. Subsequently, the cutting assembly 32 actuates to simultaneously cut the two strips. Then, the first adsorption part 311 of the first adsorption member 31 continues to adsorb the downstream portion of the first strip, while the second adsorption part 312 stops adsorbing the upstream portion of the first strip. Simultaneously, the third adsorption part 411 stops adsorbing the downstream portion of the second strip, while the fourth adsorption part 412 continues to adsorb the upstream portion of the second strip. Finally, the splicing assembly 42 extends from the second opening 43 to connect the downstream portion of the first strip with the upstream portion of the second strip, thereby supplying the second strip 21 to the electrode processing equipment, completing the roll-changing operation, and ensuring the continuity of strip supply.

[0072] Similarly, when the second strip 21 is supplied to the electrode processing equipment via the second unwinding mechanism 2, if insufficient amount of the second strip 21 is detected, the system executes a similar process, but the adsorption and splicing logics are reversed in the splicing operation. Specifically, the first adsorption part 311 of the first adsorption member 31 stops adsorbing the downstream portion of the first strip, the second adsorption part 312 continues to adsorb the upstream portion of the first strip, while the third adsorption part 411 continues to adsorb the downstream portion of the second strip, and the fourth adsorption part 412 stops adsorbing the upstream portion of the second strip. Finally, the splicing assembly 42 extends from the second opening 43 to connect the upstream portion of the first strip with the downstream portion of the second strip, thereby supplying the first strip 11 to the electrode processing equipment, completing the roll change operation, and ensuring the continuity of the strip supply.

[0073] In this embodiment, the partitioned adsorption and selective release of the first adsorption element 31 and the second adsorption element 41 can avoid incorrect connection of the material strip and achieve efficient and stable automatic roll changing.

[0074] In some embodiments, the tape-connecting assembly 42 includes a first driving member 421 and an adhesive plate 422. The first driving member 421 is connected to the second base 44, and the adhesive plate 422 is connected to the first driving member 421. The adhesive plate 422 passes through the second opening 43 and is used to absorb the adhesive strip 54. The first driving member 421 is used to drive the adhesive plate 422 to move along the second direction Y, so as to connect a portion of the first material strip 11 and a portion of the second material strip 21 through the adhesive strip 54.

[0075] In this embodiment, the tape-attaching assembly 42 includes a first driving member 421 and an adhesive plate 422. The first driving member 421 is fixedly connected to the second base 44 by bolts or flanges, and the output end of the first driving member 421 is connected to the adhesive plate 422 via a coupling. The driving method is linear reciprocating motion along the second direction Y. The adhesive plate 422 is made of aluminum alloy or stainless steel and has vacuum adsorption holes. The adhesive plate 422 is used to adsorb the adhesive strip 54, and an anti-adhesive coating is also provided on the side of the adhesive plate 422 facing the adhesive strip 54. The anti-adhesive coating can improve the smoothness of the surface of the adhesive plate 422, thereby reducing the adhesion between the adhesive plate 422 and the adhesive strip 54. Examples of anti-adhesive coatings are Teflon coatings or ceramic coatings. By providing an anti-adhesive coating on the adhesive plate 422, the side of the adhesive plate 422 facing the adhesive strip 54 has non-stick properties. In this embodiment, the adhesive plate 422 absorbs the adhesive strip 54 by negative pressure adsorption; when adsorption stops, the adhesive strip 54 can be easily detached from the surface of the adhesive plate 422.

[0076] In practical applications, the adhesive plate 422 absorbs the adhesive strip 54 through negative pressure adsorption. The first driving member 421 drives the adhesive plate 422 carrying the adhesive strip 54 to extend from the second opening 43 along the second direction Y, pressing the adhesive strip 54 onto part of the first material strip and part of the second material strip, thus realizing the strip splicing operation. After the strip splicing operation is completed, the adhesive plate 422 cuts off the negative pressure to stop adsorbing the adhesive strip 54, and the first driving member 421 drives the adhesive plate 422 to reset in preparation for the next operation.

[0077] In some embodiments, the tape-changing and splicing device further has a third direction Z that is perpendicular to the first direction X and the second direction Y, respectively. (Refer to...) Figure 4 This is a schematic diagram of the adhesive preparation mechanism according to an embodiment of this application. Figure 4 As shown, the tape changing and splicing device also includes a glue preparation mechanism 5, which includes a glue feeding suction plate 51, a glue feeding assembly 53, and a second driving member 52. The glue feeding suction plate 51 is located on the side of the second suction member 41 along the third direction Z. The side of the second suction member 41 facing the glue feeding suction plate 51 has a third opening 45, which communicates with the second opening 43. The glue feeding assembly 53 is used to release the tape so that the tape passes through the glue feeding suction plate 51. One side of the tape has a strip of adhesive 54, which the glue feeding suction plate 51 can attract. The second driving member 52 is connected to the glue feeding suction plate 51 and is used to drive the glue feeding suction plate 51 to move along the third direction Z so that the glue feeding suction plate 51 passes through the third opening 45 and approaches the adhesive plate 422.

[0078] In this embodiment, the tape changing and splicing device is arranged in a three-dimensional spatial layout with a third direction Z that is perpendicular to both the first direction X and the second direction Y, so that the overall structure forms a three-dimensional working space.

[0079] The adhesive preparation mechanism 5 includes an adhesive feeding suction plate 51, an adhesive feeding assembly 53, and a second driving member 52. The adhesive feeding suction plate 51 is arranged on the side of the second adsorption member 41 along the third direction Z. The adhesive feeding assembly 53 is responsible for releasing the adhesive tape, on which adhesive strips 54 are evenly distributed. When the tape passes through the adhesive feeding suction plate 51, the negative pressure adsorption system of the adhesive feeding suction plate 51 adsorbs individual adhesive strips 54. The second driving member 52 acts as a power source to drive the adhesive feeding suction plate 51 to move along the third direction Z, so that the adhesive feeding suction plate 51 carrying the adhesive strips 54 passes through the third opening 45 and approaches the adhesive application plate 422, so that the adhesive application plate 422 can adsorb the adhesive strips 54. After the adhesive application plate 422 adsorbs the adhesive strips 54, the second driving member 52 drives the adhesive feeding suction plate 51 away from the third opening 45.

[0080] It should be noted that both the adhesive applicator 422 and the adhesive feeding suction plate 51 have an anti-adhesive coating on their surfaces that contact the adhesive strip 54. This anti-adhesive coating improves the smoothness of the surfaces of the adhesive applicator 422 and the adhesive feeding suction plate 51, thereby reducing the adhesion of the adhesive applicator 422 or the adhesive feeding suction plate 51 to the adhesive strip 54. Examples of anti-adhesive coatings include Teflon coatings or ceramic coatings. The surface of the adhesive applicator 422 and the adhesive feeding suction plate 51 facing the adhesive strip 54 has non-stick properties, allowing the adhesive strip 54 to easily detach when the adhesive applicator 422 or the adhesive feeding suction plate 51 stops adsorbing. Specifically, when the adhesive strip 54 is adsorbed by the adhesive feeding suction plate 51 or the adhesive application plate 422, the anti-adhesive coating can ensure that the adhesive strip 54 is fixed to the surface of the adhesive feeding suction plate 51 or the adhesive application plate 422 only by vacuum adsorption force, and will not adhere to the adhesive feeding suction plate 51 or the adhesive application plate 422 due to the adhesive strip 54's own stickiness, thus ensuring the reliable transfer of the adhesive strip 54.

[0081] In practical applications, the glue feeding assembly 53 first conveys the adhesive tape. The tape moves and approaches the adsorption area of ​​the glue feeding suction plate 51. Then, the glue feeding suction plate 51 adsorbs the adhesive strip 54 on the tape. Next, the second drive unit 52 is activated, pushing the glue feeding suction plate 51 through the third opening 45 and transporting the adhesive strip 54 to the preparatory position for docking with the adhesive applicator 422. At this time, the adsorption surface of the adhesive applicator 422 is parallel and aligned with the glue feeding suction plate 51. The adhesive applicator 422 adsorbs the adhesive strip 54 from the glue feeding suction plate 51, completing the transfer of the adhesive strip 54. After the adhesive strip 54 is transferred, the glue feeding suction plate 51 is reset under the action of the second drive unit 52, preparing for the next glue feeding. The glue preparation action performed by the glue preparation mechanism 5 in this embodiment can be performed in parallel with the tape cutting operation, improving the overall roll changing efficiency.

[0082] In some embodiments, such as Figure 2As shown, the cutter assembly 32 includes a cutter 321 and a third drive member 322. The cutter 321 passes through the first opening 33, and the third drive member 322 is connected to the first base 34. The cutter 321 is connected to the third drive member 322, and the third drive member 322 is used to drive the cutter 321 to move along the second direction Y, so as to cut the first material strip 11 adsorbed by the first adsorption part 311 and the second adsorption part 312 and the second material strip 21 adsorbed by the third adsorption part 411 and the fourth adsorption part 412 through the cutter 321.

[0083] In this embodiment, the cutter assembly 32 includes a cutter 321 and a third drive member 322. The cutter 321 is installed in the first opening 33, and the cutting operation is completed by the linear push of the third drive member 322. The base of the third drive member 322 is rigidly connected to the first base 34 to maintain motion stability. The length of the cutter 321 is greater than or equal to the width of the material strip to ensure complete cutting of the material strip.

[0084] In practical applications, the first adsorption element 31 and the second adsorption element 41 first adsorb and fix the first strip 11 and the second strip 21 respectively, ensuring that the strips remain flat and wrinkle-free during cutting. Then, the third drive element 322 pushes the cutter 321 along the second direction Y towards the strips until the blade of the cutter 321 cuts the first strip 11 and the second strip 21. During the cutting process, the two adsorption elements maintain a negative pressure state to ensure that the cut strip ends do not spring back or shift, providing precise positioning for subsequent strip splicing processes. After the cutting operation is completed, the third drive element 322 drives the cutter 321 to reset.

[0085] In some embodiments, the cutting mechanism 3 further includes a fourth driving member 313, which is connected to the first base 34. The first adsorption member 31 is connected to the fourth driving member 313, and the fourth driving member 313 is used to drive the first adsorption member 31 to move along the second direction Y.

[0086] The tape-connecting mechanism 4 also includes a fifth driving member 413, which is connected to the second base 44. The second adsorption member 41 is connected to the fifth driving member 413, and the fifth driving member 413 is used to drive the second adsorption member 41 to move along the second direction Y.

[0087] In this embodiment, the fourth driving member 313 and the fifth driving member 413 are respectively mounted on the first base 34 and the second base 44, forming a stable motion reference. The fourth driving member 313 and the fifth driving member 413 respectively drive the first adsorption member 31 and the second adsorption member 41 to move along the second direction Y.

[0088] In practical applications, when it is detected that the material roll is about to run out and needs to be replaced, the fourth driving member 313 and the fifth driving member 413 firstly drive the first adsorption member 31 and the second adsorption member 41 to move towards each other along the second direction Y until they are tightly fitted. At this time, the first opening 33 on the first adsorption member 31 and the second opening 43 on the second adsorption member 41 are aligned, forming a continuous working channel. At the same time, the first material strip 11 and the second material strip 21 are flatly fitted between the first adsorption member 31 and the second adsorption member 41 under the adsorption of the first adsorption member 31 and the second adsorption member 41, respectively. Then, the cutter 321 of the cutter assembly 32 extends from the first opening 33 to perform a cutting action. Since the first material strip 11 and the second material strip 21 are in a taut and flat state, the cutter 321 can complete the synchronous cutting of the first material strip 11 and the second material strip 21 in one go, and ensure that the cut of the material strip is straight and burr-free. Next, the adhesive plate 422 of the splicing assembly 42 extends from the second opening 43 to cover the cut ends of part of the first and part of the second tape with adhesive strip 54. Since the cut ends of the first tape 11 and the second tape 21 remain taut and flat, the adhesive strip 54 adheres more firmly. Finally, the first suction member 31 and the second suction member 41 separate and reset along the second direction Y under the drive of the fourth drive member 313 and the fifth drive member 413, respectively, and the new roll begins normal feeding. The entire roll changing and splicing process is efficient and reliable.

[0089] In some embodiments, the tape changing and splicing device further includes a detection element 6 and a control element 7. The detection element 6 is disposed on one side of the first unwinding mechanism 1 and is used to detect the winding amount of the first tape 11 in the first unwinding mechanism 1; and / or, the detection element 6 is disposed on one side of the second unwinding mechanism 2 and is used to detect the winding amount of the second tape 21 in the second unwinding mechanism 2.

[0090] The control unit 7 is electrically connected to the detection unit 6, the first drive unit 421, the second drive unit 52, the third drive unit 322, the fourth drive unit 313 and the fifth drive unit 413 respectively, and is used to control the operation of the first drive unit 421, the second drive unit 52, the third drive unit 322, the fourth drive unit 313 and the fifth drive unit 413 based on the detection result of the detection unit 6.

[0091] In this embodiment, the roll-changing and splicing device is further provided with a detection element 6 and a control element 7. The detection element 6 can be a non-contact sensor, such as a photoelectric sensor or an ultrasonic sensor, and is arranged on the outside of the roll of the first unwinding mechanism 1 and the second unwinding mechanism 2. The detection element 6 monitors the changes in the diameter or length of the roll in real time by emitting and receiving light signals or sound signals, and converts the data into electrical signals and transmits them to the control element 7.

[0092] The control unit 7 uses a programmable logic controller as the core control unit, and can also be optionally configured with an HMI (Human Machine Interface). The HMI serves as the medium for interaction and information exchange between humans and the control unit 7. It can present complex operations and data in a user-friendly interface in a graphical way, enabling users to easily control the operation of the tape changing and splicing device, monitor its operating status, and perform operations.

[0093] For example, the first drive unit 421, the second drive unit 52, the third drive unit 322, the fourth drive unit 313 and the fifth drive unit 413 can be selected as servo motors with ball screws, compact electric actuators, cylinders or linear motors, respectively. Optionally, these drive units are all equipped with encoders, which can feed back the position signal to the control unit 7 in real time.

[0094] In a specific application, when the detection component 6 detects that the length of the roll of the first unwinding mechanism 1 or the second unwinding mechanism 2 is ≤10 meters, it sends a signal to the control component 7. The control component 7 then starts the roll changing and splicing procedure: First, it controls the fourth drive component 313 and the fifth drive component 413 to move, driving the first adsorption component 31 and the second adsorption component 41 to move towards each other and fit together along the second direction Y; then it controls the third drive component 322 to move, driving the cutter 321 to move along the second direction Y, cutting the first strip 11 and the second strip 21 adsorbed between the first adsorption component 31 and the second adsorption component 41, thus completing the strip cutting operation. Next, the splicing operation is performed: First, the second drive unit 52 is driven, which moves the glue-feeding suction plate 51 carrying the adhesive strip 54 along the third direction Z, so that the glue-feeding suction plate 51 passes through the third opening 45 and approaches the adhesive-applying plate 422. The adhesive-applying plate 422 absorbs the adhesive strip 54. Then, the first drive unit 421 is driven, which drives the adhesive-applying plate 422 carrying the adhesive strip 54 to extend out from the second opening 43. The adhesive strip 54 connects part of the first material strip and part of the second material strip, completing the splicing operation. The device in this example can realize automatic roll changing, improving production efficiency and product consistency.

[0095] In some embodiments, the first adsorption member 31 is provided with a first negative pressure chamber and a second negative pressure chamber that are spaced apart from each other, the first adsorption part 311 is provided with a plurality of first adsorption holes 3111 arranged at intervals, and the second adsorption part 312 is provided with a plurality of second adsorption holes 3121 arranged at intervals. The first adsorption holes 3111 are connected to the first negative pressure chamber, and the second adsorption holes 3121 are connected to the second negative pressure chamber.

[0096] In other embodiments, the second adsorption member 41 is provided with a third negative pressure chamber and a fourth negative pressure chamber that are spaced apart from each other, the third adsorption part 411 is provided with a plurality of third adsorption holes 4111 arranged at intervals, and the fourth adsorption part 412 is provided with a plurality of fourth adsorption holes 4121 arranged at intervals. The third adsorption holes 4111 are connected to the third negative pressure chamber, and the fourth adsorption holes 4121 are connected to the fourth negative pressure chamber.

[0097] In this embodiment, the negative pressure adsorption structure of the first adsorption element 31 and the second adsorption element 41 adopts a chamber isolation design, allowing the start and stop of each adsorption section to be controlled independently. The first adsorption element 31 is internally divided into an independent first negative pressure chamber and a second negative pressure chamber, with a sealing partition between these two chambers to ensure gas path isolation. Furthermore, first adsorption holes 3111 are distributed on the first adsorption section 311, communicating with the first negative pressure chamber; similarly, multiple second adsorption holes 3121 are also provided on the second adsorption section 312, communicating with the second negative pressure chamber, enabling the selection of one of the first adsorption section 311 and the second adsorption section 312 to operate, or for both to operate simultaneously, according to operational requirements.

[0098] The second adsorption element 41 also adopts the same structural design and working principle. Specifically, it has a separated third negative pressure chamber and a fourth negative pressure chamber inside. The third negative pressure chamber is connected to the third adsorption hole 4111 of the third adsorption part 411, and the fourth negative pressure chamber is connected to the fourth adsorption hole 4121 of the fourth adsorption part 412. The edges of all adsorption holes are chamfered to avoid scratching the surface of the material strip. The first, second, third, and fourth negative pressure chambers are each connected to a vacuum pump. The vacuum pump generates a stable negative pressure in each negative pressure chamber to achieve adsorption of the material strip.

[0099] In practical applications, when the first strip 11 and the second strip 21 are cut, the first negative pressure chamber of the first adsorption part 311, the second negative pressure chamber of the second adsorption part 312, the third negative pressure chamber of the third adsorption part 411, and the fourth negative pressure chamber of the fourth adsorption part 412 simultaneously generate stable negative pressure, adsorbing the first strip 11 and the second strip 21 respectively. During the adsorption process, the strips are firmly fixed by the adsorption holes. When splicing, the first negative pressure chamber of the first adsorption part 311 and the fourth negative pressure chamber of the fourth adsorption part 412 depressurize, stopping the adsorption of part of the first strip and part of the second strip. The second negative pressure chamber of the second adsorption part 312 and the third negative pressure chamber of the third adsorption part 411 continue to adsorb the remaining part of the first strip and the remaining part of the second strip, realizing the staggered adsorption of the first strip 11 and the second strip 21 for the splicing assembly 42 to attach the adhesive strip 54. Alternatively, the second negative pressure chamber of the second adsorption section 312 and the third negative pressure chamber of the third adsorption section 411 are depressurized, stopping the adsorption of part of the first material strip and part of the second material strip. The first negative pressure chamber of the first adsorption section 311 and the fourth negative pressure chamber of the fourth adsorption section 412 continue to adsorb the remaining part of the first material strip and the remaining part of the second material strip, realizing the staggered adsorption of the first material strip 11 and the second material strip 21, so that the tape assembly 42 can attach the adhesive strip 54.

[0100] In some embodiments, the tape changing and splicing device further includes: a first passing roller assembly 8, which is disposed on both sides of the tape cutting mechanism 3, and is used to wind the first material tape 11 so that the first material tape 11 passes through the tape cutting mechanism 3; and / or, a second passing roller assembly 9 is disposed on both sides of the tape splicing mechanism 4, and is used to wind the second material tape 21 so that the second material tape 21 passes through the tape splicing mechanism 4.

[0101] In this embodiment, the first roller assembly 8 is composed of multiple sets of rollers, arranged on both sides of the cutting mechanism 3 along the first direction X. In specific applications, the first strip 11 extends from the first unwinding mechanism 1, and sequentially slides against the rollers between the first unwinding mechanism 1 and the cutting mechanism 3, passes through the cutting mechanism 3 and the rollers on the side of the cutting mechanism 3 opposite to the first unwinding mechanism 1, and finally extends into the polar roll processing equipment or is fixed.

[0102] In other embodiments, the second roller assembly 9 also consists of multiple rollers arranged on both sides of the tape receiving mechanism 4 along the first direction X. In specific applications, the second strip 21 extends from the second unwinding mechanism 2, and sequentially slides against the rollers between the second unwinding mechanism 2 and the tape receiving mechanism 4, passes through the tape receiving mechanism 4, and slides against the rollers on the side of the tape receiving mechanism 4 opposite to the second unwinding mechanism 2, and finally extends into the polar roll processing equipment or is fixed.

[0103] All roller surfaces are coated with an antistatic coating to prevent dust from adsorbing onto the electrodes in the roll. The rollers are driven by a drive component, such as an electric motor, which rotates the rollers, causing the strip to slide on the roller surface to achieve auxiliary transmission and ensure the stability of the strip transmission.

[0104] In some embodiments, this application also provides an electrode processing apparatus. The electrode processing apparatus includes a reel-changing and splicing device.

[0105] In this embodiment, the first unwinding mechanism 1 and the second unwinding mechanism 2 in the rewinding and splicing device respectively load the first material strip 11 and the second material strip 21, both of which are rolled electrode sheets. The electrode processing apparatus includes a rewinding and splicing device, which continuously supplies electrode sheets to the downstream electrode processing apparatus body, ensuring that the electrode sheet slitting, die-cutting, or stacking processes downstream of the rewinding and splicing device continue to operate, thereby improving production efficiency.

[0106] 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 this application. 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 more embodiments or examples.

[0107] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A tape changing and splicing device, characterized in that, include: The first unwinding mechanism (1) is used to release the first strip (11); The second unwinding mechanism (2) is used to release the second strip (21); The tape cutting mechanism (3) includes a first adsorption member (31) and a cutter assembly (32). The first adsorption member (31) has a first opening (33), and the cutter assembly (32) passes through the first opening (33). The first adsorption member (31) is used to adsorb the first material tape (11). The tape receiving mechanism (4) includes a second adsorption member (41) and a tape receiving assembly (42). The second adsorption member (41) has a second opening (43), and the tape receiving assembly (42) passes through the second opening (43). The second adsorption member (41) is used to adsorb the second material tape (21). The first opening (33) and the second opening (43) are arranged opposite to each other. The cutter assembly (32) is used to cut the first strip (11) and the second strip (21), and to connect a portion of the first strip (11) and a portion of the second strip (21) through the strip-connecting assembly (42).

2. The tape changing and splicing device according to claim 1, characterized in that, The tape changing and splicing device has a first direction (X) and a second direction (Y) that are perpendicular to each other; The cutting mechanism (3) further includes a first base (34), which is disposed on one side of the first unwinding mechanism (1) along the first direction (X). The first adsorption member (31) is movably connected to the first base (34) along the second direction (Y). The first adsorption member (31) is also provided with a first adsorption part (311) and a second adsorption part (312). The first adsorption part (311) and the second adsorption part (312) are disposed on both sides of the first opening (33) along the first direction (X), and the first adsorption part (311) is located on the side of the second adsorption part (312) away from the first unwinding mechanism (1). The tape receiving mechanism (4) further includes a second base (44), which is disposed on one side of the second unwinding mechanism (2) along the first direction (X). The second adsorption member (41) is movably connected to the second base (44) along the second direction (Y). The second adsorption member (41) is also provided with a third adsorption part (411) and a fourth adsorption part (412). The third adsorption part (411) and the fourth adsorption part (412) are disposed on both sides of the second opening (43) along the first direction (X), and the third adsorption part (411) is located on the side of the fourth adsorption part (412) away from the second unwinding mechanism (2). The cutting assembly (32) is used to cut the first material strip (11) adsorbed by the first adsorption part (311) and the second adsorption part (312) and the second material strip (21) adsorbed by the third adsorption part (411) and the fourth adsorption part (412), and to connect the portion of the first material strip (11) adsorbed by the second adsorption part (312) and the portion of the second material strip (21) adsorbed by the third adsorption part (411) through the connecting assembly (42), or to connect the portion of the first material strip (11) adsorbed by the first adsorption part (311) and the portion of the second material strip (21) adsorbed by the third adsorption part (411).

3. The tape changing and splicing device according to claim 2, characterized in that, The tape assembly (42) includes: a first driving member (421) and an adhesive plate (422); The first driving member (421) is connected to the second base (44), the adhesive plate (422) is connected to the first driving member (421), and the adhesive plate (422) passes through the second opening (43) for adsorbing the adhesive strip (54); The first driving member (421) is used to drive the adhesive plate (422) to move along the second direction (Y) to connect a portion of the first strip (11) and a portion of the second strip (21) by means of the adhesive strip (54).

4. The tape changing and splicing device according to claim 3, characterized in that, The tape changing and splicing device also has a third direction (Z) that is perpendicular to the first direction (X) and the second direction (Y) respectively. The tape changing and splicing device also includes a glue preparation mechanism (5), which includes: a glue feeding suction plate (51), a glue feeding assembly (53), and a second drive component (52). The adhesive feeding suction plate (51) is located on one side of the second adsorption member (41) along the third direction (Z). The second adsorption member (41) has a third opening (45) on the side facing the adhesive feeding suction plate (51). The third opening (45) communicates with the second opening (43). The adhesive feeding assembly (53) is used to release the adhesive tape so that the adhesive tape passes through the adhesive feeding suction plate (51). One side of the adhesive tape is provided with an adhesive strip (54), and the adhesive feeding suction plate (51) can adsorb the adhesive strip (54). The second driving member (52) is connected to the glue feeding suction plate (51) and is used to drive the glue feeding suction plate (51) to move along the third direction (Z) so that the glue feeding suction plate (51) passes through the third opening (45) and approaches the adhesive plate (422).

5. The tape changing and splicing device according to claim 2, characterized in that, The cutting assembly (32) includes: a cutting blade (321) and a third drive unit (322); The cutter (321) passes through the first opening (33), the third drive member (322) is connected to the first base (34), the cutter (321) is connected to the third drive member (322), and the third drive member (322) is used to drive the cutter (321) to move along the second direction (Y) so as to cut the first material strip (11) adsorbed by the first adsorption part (311) and the second adsorption part (312) and the second material strip (21) adsorbed by the third adsorption part (411) and the fourth adsorption part (412) through the cutter (321).

6. The tape changing and splicing device according to claim 2, characterized in that, The cutting mechanism (3) further includes a fourth driving member (313), which is connected to the first base (34). The first adsorption member (31) is connected to the fourth driving member (313), and the fourth driving member (313) is used to drive the first adsorption member (31) to move along the second direction (Y). The receiving mechanism (4) further includes a fifth driving member (413), which is connected to the second base (44). The second adsorption member (41) is connected to the fifth driving member (413), and the fifth driving member (413) is used to drive the second adsorption member (41) to move along the second direction (Y).

7. The tape changing and splicing device according to claim 6, characterized in that, Also includes: Detection component (6) and control component (7), The detection element (6) is disposed on one side of the first unwinding mechanism (1) and is used to detect the winding amount of the first strip (11) in the first unwinding mechanism (1); and / or, the detection element (6) is disposed on one side of the second unwinding mechanism (2) and is used to detect the winding amount of the second strip (21) in the second unwinding mechanism (2); The control unit (7) is electrically connected to the detection unit (6), the first drive unit (421), the second drive unit (52), the third drive unit (322), the fourth drive unit (313), and the fifth drive unit (413) respectively, and is used to control the operation of the first drive unit (421), the second drive unit (52), the third drive unit (322), the fourth drive unit (313), and the fifth drive unit (413) based on the detection result of the detection unit (6).

8. The tape changing and splicing device according to claim 6, characterized in that, The first adsorption element (31) is provided with a first negative pressure chamber and a second negative pressure chamber that are separated from each other. The first adsorption part (311) is provided with a plurality of first adsorption holes (3111) arranged at intervals. The second adsorption part (312) is provided with a plurality of second adsorption holes (3121) arranged at intervals. The first adsorption holes (3111) are connected to the first negative pressure chamber, and the second adsorption holes (3121) are connected to the second negative pressure chamber. And / or, the second adsorption element (41) is provided with a third negative pressure chamber and a fourth negative pressure chamber that are spaced apart from each other, the third adsorption part (411) is provided with a plurality of third adsorption holes (4111) arranged at intervals, the fourth adsorption part (412) is provided with a plurality of fourth adsorption holes (4121) arranged at intervals, the third adsorption holes (4111) are connected to the third negative pressure chamber, and the fourth adsorption holes (4121) are connected to the fourth negative pressure chamber.

9. The tape changing and splicing device according to claim 1, characterized in that, Also includes: The first roller assembly (8) is disposed on both sides of the cutting mechanism (3). The first roller assembly (8) is used to wind the first material strip (11) so that the first material strip (11) passes through the cutting mechanism (3). And / or, the second roller assembly (9) is disposed on both sides of the belt receiving mechanism (4), and the second roller assembly (9) is used to wind the second material belt (21) so that the second material belt (21) passes through the belt receiving mechanism (4).

10. An electrode processing apparatus, characterized in that, Includes the tape changing and splicing device as described in any one of claims 1-9.

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