Adhesive tape attachment device and battery production line

Abstract

The present application relates to an adhesive tape attachment device and a battery production line. The adhesive tape attachment device comprises: a conveying mechanism, which is configured to carry a plurality of electrode sheets having tabs and to convey the plurality of electrode sheets one by one to an adhesive tape attachment station, wherein a connection part between each electrode sheet and the tab has a first surface and a second surface that are opposite each other in the direction of thickness; a first adhesive tape attachment mechanism, which comprises a first suction member for picking up a first adhesive tape, wherein the first suction member can move towards the adhesive tape attachment station to attach the first adhesive tape to the first surface; and a second adhesive tape attachment mechanism, which comprises a second suction member for picking up a second adhesive tape, wherein the second suction member can move towards the adhesive tape attachment station to attach the second adhesive tape to the second surface. The adhesive tape attachment device of the present application solves the problem of electrode sheets having adhesive tape attached thereto deviating from the direction of travel during winding and unwinding and leading to a reduction in the quality of stacking of the electrode sheets, thereby effectively improving the quality of stacking of the electrode sheets, improving battery production quality.

Description

Gluing device and battery production line Cross-reference to related applications

[0001] This application is based on Chinese Patent Application No. 202411082627.6 entitled "Gluing device and battery production line" filed on August 08, 2024, which is incorporated by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of batteries, and in particular to a gluing device and a battery production line. BACKGROUND

[0003] In the process of battery production, when the battery pole piece is laminated, the tab root of the adjacent positive pole piece is easy to be overlapped with the end of the negative pole piece, causing the positive and negative pole pieces to be in contact short circuit, and it is necessary to glue the tab root of the pole piece to reduce the probability of contact short circuit between the adjacent positive and negative pole pieces.

[0004] In the related art, the gluing method for the tab root of the pole piece has limitations. After the tab root of the pole piece is glued, the forming quality of the subsequent pole piece lamination is affected, and the battery production quality is reduced. SUMMARY

[0005] According to various embodiments of the present application, a gluing device and a battery production line are provided.

[0006] In a first aspect, the present application provides a gluing device, comprising:

[0007] A conveying mechanism for carrying a plurality of pole pieces with tabs and conveying the plurality of pole pieces one by one to a gluing station, the connection part between the pole piece and the tab has opposite first and second surfaces in the thickness direction thereof;

[0008] A first gluing mechanism comprising a first suction accessory for suctioning a first adhesive tape, the first suction accessory being movable towards the direction close to the gluing station to paste the first adhesive tape on the first surface;

[0009] A second gluing mechanism comprising a second suction accessory for suctioning a second adhesive tape, the second suction accessory being movable towards the direction close to the gluing station to paste the second adhesive tape on the second surface.

[0010] According to the gluing device of the first aspect of the present application, at least the following beneficial effects are achieved:

[0011] The adhesive device of the present application is provided by the cooperation of the conveying mechanism, the first adhesive mechanism and the second adhesive mechanism. The adhesive device can adhere adhesive tape to each of the plurality of pole pieces with tabs one by one, so that each pole piece with adhesive tape can be directly conveyed to the lamination station by the conveying mechanism to form a laminated shape. Compared with the existing adhesive tape adhering mode of continuously adhering adhesive tape to the root of each tab at the edge of the pole piece material belt, the adhesive device of the present application eliminates the action of winding and unwinding the pole piece with adhesive tape, thereby solving the problem of the pole piece with adhesive tape deviating from the belt running direction during the winding and unwinding process, and effectively improving the lamination quality of the pole piece and the production quality of the battery.

[0012] In some embodiments, the second adhesive mechanism further comprises a second support, the second support and the second suction accessory can be alternately corresponding to the second surface in the thickness direction, and the second support can move towards the direction close to the adhesive station to support the second surface when the first suction accessory adheres the first adhesive tape to the first surface.

[0013] In this way, the first suction accessory can support the first surface when the second suction accessory adheres the second adhesive tape to the second surface, thereby reducing the probability of sagging, warping and bending deformation of the pole piece during the adhesive process, reducing the risk of cracking and tearing of the first adhesive tape and the second adhesive tape after being adhered to the corresponding surface of the pole piece, and improving the adhesive quality of the first adhesive tape and the second adhesive tape.

[0014] In some embodiments, the first adhesive mechanism further comprises a first buffer structure connected to the first suction accessory, the first buffer structure is used to apply a first elastic force to the first suction accessory when the first suction accessory adheres the first adhesive tape to the first surface.

[0015] The second adhesive mechanism further comprises a second buffer structure connected to the second suction accessory, the second buffer structure is used to apply a second elastic force to the second suction accessory when the second suction accessory adheres the second adhesive tape to the second surface.

[0016] In this way, the pressure on the first surface of the pole piece gradually increases at a slow speed instead of rapidly changing, thereby reducing the probability of the first surface of the pole piece being pulled and torn due to overpressure, reducing the risk of damage to the structure of the pole piece, and improving the adhesive quality of the first adhesive tape. The pressure on the second surface of the pole piece gradually increases at a slow speed instead of rapidly changing, thereby reducing the probability of the second surface of the pole piece being pulled and torn due to overpressure, reducing the risk of damage to the structure of the pole piece, and improving the adhesive quality of the second adhesive tape.

[0017] In some embodiments, the first suction accessory is capable of supporting the first surface when the second suction accessory is adhering the second adhesive tape to the second surface, and the first elastic force is greater than the second elastic force when the first suction accessory supports the first surface.

[0018] In this way, the first suction accessory can effectively maintain the state of supporting the first surface on the polar plate, so that the first suction accessory and the second suction accessory can respectively maintain the state of pressing the first surface and the second surface on the polar plate, thereby making the forces acting on the first surface and the second surface on the polar plate relatively uniform, reducing the probability of displacement of the first suction accessory and the loss of support for the first surface, thereby reducing the risk of tearing of the second surface on the polar plate and improving the adhesion quality of the second adhesive tape.

[0019] In some embodiments, the first adhesive taping mechanism further comprises a first connecting member, the first buffer structure comprises a first spring, and the first suction accessory is slidingly connected to the first connecting member, and the first spring is clamped between the first connecting member and the first suction accessory.

[0020] The second adhesive taping mechanism further comprises a second connecting member, the second buffer structure comprises a second spring, the second suction accessory is slidingly connected to the second connecting member, and the second spring is clamped between the second connecting member and the second suction accessory, and the wire diameter of the first spring is greater than the wire diameter of the second spring.

[0021] In this way, the first suction accessory can effectively maintain the state of supporting the first surface on the polar plate, so that the first suction accessory and the second suction accessory can respectively maintain the state of pressing the first surface and the second surface on the polar plate, thereby making the forces acting on the first surface and the second surface on the polar plate relatively uniform, reducing the probability of displacement of the first suction accessory and the loss of support for the first surface, thereby reducing the risk of tearing of the second surface on the polar plate and improving the adhesion quality of the second adhesive tape.

[0022] In some embodiments, the first adhesive taping mechanism further comprises a first support member, the first support member and the first suction accessory are capable of alternatively corresponding to the first surface in the thickness direction, and the first support member is capable of moving towards the direction close to the adhesive taping station to support the first surface when the second suction accessory adheres the second adhesive tape to the second surface.

[0023] In this way, the first support member plays a role in supporting the first surface when the second suction accessory adheres the second adhesive tape to the second surface, thereby reducing the probability of warping or bending deformation of the polar plate when the second suction accessory adheres the second adhesive tape to the second surface on the polar plate, and making the forces acting on the first surface and the second surface on the polar plate relatively uniform, thereby reducing the risk of cracking or tearing of the second adhesive tape after being adhered to the second surface and improving the adhesion quality of the second adhesive tape.

[0024] In some embodiments, the first taping mechanism further comprises a first driving member, an output end of the first driving member being connected to the first support member and the first suction member, so as to drive the first support member and the first suction member to rotate around a first axis, so that the first support member and the first suction member are alternately corresponded to the first surface in the thickness direction.

[0025] In this way, the first support member and the first suction member can be alternately abutted against the first surface on the pole piece in a short time, so as to improve the taping quality of the first adhesive tape and the second adhesive tape, and improve the taping efficiency of the first adhesive tape and the second adhesive tape.

[0026] In some embodiments, the second taping mechanism further comprises a second driving member, an output end of the second driving member being connected to the second support member and the second suction member, so as to drive the second support member and the second suction member to rotate around a second axis, so that the second support member and the second suction member are alternately corresponded to the second surface in the thickness direction.

[0027] In this way, the second support member and the second suction member can be alternately abutted against the second surface on the pole piece in a short time, so as to improve the taping quality of the first adhesive tape and the second adhesive tape, and improve the taping efficiency of the first adhesive tape and the second adhesive tape.

[0028] In some embodiments, the taping device further comprises:

[0029] a first detection mechanism configured to acquire position information of the pole piece in the space in the taping station;

[0030] a first deviation rectifying mechanism in driving connection with the first suction member, configured to adjust the position of the first suction member in the space according to the position information acquired by the first detection mechanism, so that the first adhesive tape on the first suction member is directly opposite to the first surface.

[0031] In this way, the first suction member moves linearly to accurately paste the first adhesive tape to the first surface on the pole piece, so as to improve the taping quality of the first adhesive tape.

[0032] In some embodiments, the taping device further comprises:

[0033] a second detection mechanism configured to acquire position information of the pole piece in the space in the taping station;

[0034] a second deviation rectifying mechanism in driving connection with the second suction member, configured to adjust the position of the second suction member in the space according to the position information acquired by the second detection mechanism, so that the second adhesive tape on the second suction member is directly opposite to the second surface.

[0035] In this way, the second adhesive member can accurately stick the second adhesive tape to the second surface of the pole piece in a straight line, thereby improving the sticking quality of the second adhesive tape.

[0036] In some embodiments, the adhesive taping device further comprises:

[0037] A pole piece feeding mechanism configured to unwind and pull the pole piece tape in a first preset direction, and the conveying mechanism is connected to the end of the pole piece feeding mechanism;

[0038] A die-cutting mechanism arranged between the pole piece feeding mechanism and the conveying mechanism, and configured to cut the pole piece tape into a plurality of pole pieces with tabs.

[0039] In this way, the action of winding and unwinding the pole piece with the adhesive tape is omitted, thereby solving the problem of the pole piece with the adhesive tape being offset relative to the tape running direction during winding and unwinding, and effectively improving the pole piece stacking quality and the battery production quality.

[0040] In some embodiments, the adhesive taping device further comprises:

[0041] A first adhesive feeding mechanism configured to supply a first adhesive material;

[0042] A first adhesive applying mechanism comprising a first clamping member and a first cutting member, the first clamping member is configured to clamp and pull the head of the first adhesive material in a second preset direction to pull out the first adhesive material by a first preset length, and the first cutting member is configured to cut the first adhesive material pulled out by the first preset length to obtain the first adhesive tape;

[0043] The first adhesive member is configured to adsorb the first adhesive tape when the first cutting member cuts the first adhesive material.

[0044] In this way, the first adhesive member can continuously stick the first adhesive tape to the corresponding position of the pole piece in the adhesive taping station one by one, thereby improving the adhesive taping efficiency of the batch of pole pieces.

[0045] In some embodiments, the first clamping member comprises a first clamping portion and a second clamping portion capable of moving away from or close to each other, the first clamping portion is configured to contact the back adhesive surface of the first adhesive material, the second clamping portion is configured to contact the adhesive surface of the first adhesive material, and the part of the second clamping portion contacting the first adhesive material is configured as a toothed structure.

[0046] In this way, the contact area between the second clamping portion and the adhesive surface of the first adhesive material can be reduced, the risk of the second clamping portion and the first adhesive material sticking together can be reduced, and the smoothness of the first adhesive tape feeding can be improved.

[0047] In some embodiments, the first clamping part is configured to form a line contact with the back adhesive surface of the first adhesive material.

[0048] In this way, the first clamping part can contact multiple parts of the back adhesive surface of the first adhesive material, and can apply a large pressing force to the back adhesive surface of the first adhesive material. The first clamping part and the second clamping part can stably clamp the first adhesive material, reduce the probability of slippage between the first adhesive material and the first clamping part, and reduce the risk of damage to the back adhesive surface of the first adhesive material due to excessive force.

[0049] In some embodiments, the first adhesive dispensing mechanism further comprises a second clamping part disposed between the first adhesive dispensing mechanism and the first cutting part. The second clamping part is configured to clamp a part of the first adhesive material close to a position cut off by the first cutting part.

[0050] In this way, the two ends of the part of the first adhesive material pulled out by the first preset length are kept in a tension state under the synchronous clamping action of the first clamping part and the second clamping part, so that the first cutting part can smoothly cut the part of the first adhesive material pulled out by the first preset length, and the risk of the part of the first adhesive material pulled out by the first preset length being in a relaxed state and being difficult to be accurately cut by the first cutting part is reduced.

[0051] In some embodiments, the second clamping part comprises a third clamping part and a fourth clamping part capable of moving away from or close to each other. The third clamping part is configured to contact the back adhesive surface of the first adhesive material, and the fourth clamping part is configured to contact the adhesive surface of the first adhesive material. The part of the fourth clamping part contacting the first adhesive material is configured as a toothed structure.

[0052] In this way, the contact area between the fourth clamping part and the adhesive surface of the first adhesive material can be reduced, the risk of the fourth clamping part and the first adhesive material being pasted together can be reduced, and the smoothness of the movement of the first adhesive material in the second preset direction and the dispensing of the first adhesive tape can be improved.

[0053] In some embodiments, the third clamping part is configured to form a surface contact with the back adhesive surface of the first adhesive material.

[0054] In this way, the contact area between the third clamping part and the back adhesive surface of the first adhesive material is increased, and the probability of slippage between the first adhesive material and the third clamping part can be reduced. The two ends of the part of the first adhesive material pulled out by the first preset length are kept in a tension state under the synchronous clamping action of the first clamping part and the second clamping part, so that the first cutting part can smoothly cut the part of the first adhesive material pulled out by the first preset length, and the risk of the part of the first adhesive material pulled out by the first preset length being in a relaxed state and being difficult to be accurately cut by the first cutting part is reduced.

[0055] In some embodiments, the gluing device further comprises:

[0056] a second glue supply mechanism for supplying a second glue material;

[0057] a second glue dispensing mechanism comprising a third clamping member and a second cutting member, the third clamping member is configured to clamp and drive a head of the second glue material to move along a third preset direction, so as to pull out the second glue material by a second preset length, and the second cutting member is configured to cut the second glue material pulled out by the second preset length to obtain the second adhesive tape;

[0058] wherein the second suction member is capable of sucking the second adhesive tape when the second cutting member cuts the second glue material.

[0059] In this way, the second suction member can continuously supply the second adhesive tape to continuously stick the second adhesive tape to the corresponding positions of the pole pieces in the gluing station one by one, thereby improving the gluing efficiency of the batch of pole pieces.

[0060] In some embodiments, the gluing device further comprises a rack, and the first glue supply mechanism and the second glue supply mechanism are symmetrically arranged on the rack.

[0061] The first glue dispensing mechanism and the second glue dispensing mechanism are symmetrically arranged on the rack.

[0062] In this way, the first suction member and the second suction member can be simultaneously supplied with the first adhesive tape and the second adhesive tape, thereby improving the gluing efficiency of the pole pieces.

[0063] In a second aspect, the present application provides a battery production line comprising the above-mentioned gluing device.

[0064] According to the battery production line of the second aspect of the present application, at least the following beneficial effects are achieved:

[0065] The battery production line of the present application, due to the configuration of the above-mentioned gluing device, also has the same technical effects as the above-mentioned gluing device, i.e., through the cooperation of the conveying mechanism, the first gluing mechanism, and the second gluing mechanism, the pole pieces with the tabs are glued one by one, so that each pole piece with the adhesive tape can be directly conveyed to the lamination station by the conveying mechanism for lamination forming. Compared with the existing gluing method of gluing the continuous adhesive tape on the root of each tab at the edge of the pole piece material belt, the action of winding and unwinding the pole piece with the adhesive tape is saved, thereby solving the problem of the pole piece with the adhesive tape deviating from the running direction during the winding and unwinding process, which causes the lamination forming quality of the pole piece to decrease, effectively improving the lamination forming quality of the pole piece and the battery production quality.

[0066] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear and understandable, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following will be described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0067] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the drawings. In the drawings:

[0068] Fig. 1 is a schematic view of the cooperation structure of the pole piece, the first adhesive tape and the second adhesive tape according to an embodiment of the present application.

[0069] Fig. 2 is a schematic view of the cooperation structure of the pole piece, the first adhesive tape and the second adhesive tape according to an embodiment of the present application.

[0070] Fig. 3 is a schematic view of the structure of the adhesive taping device according to an embodiment of the present application.

[0071] Fig. 4 is a schematic view of the cooperation structure of the first adhesive taping mechanism and the pole piece according to an embodiment of the present application.

[0072] Fig. 5 is a schematic view of the structure of the adhesive taping device according to an embodiment of the present application.

[0073] Fig. 6 is a schematic view of the cooperation structure of the first adhesive taping mechanism, the second adhesive taping mechanism and the pole piece according to an embodiment of the present application.

[0074] Fig. 7 is a partial enlarged view of A in Fig. 6.

[0075] Fig. 8 is another schematic view of the cooperation structure of the first adhesive taping mechanism, the second adhesive taping mechanism and the pole piece according to an embodiment of the present application.

[0076] Fig. 9 is a schematic view of the structure of the first adhesive taping mechanism according to an embodiment of the present application.

[0077] Fig. 10 is a schematic view of the structure of the second adhesive taping mechanism according to an embodiment of the present application.

[0078] Fig. 11 is a schematic view of the cooperation structure of the first adhesive supplying mechanism and the first adhesive applying mechanism according to an embodiment of the present application.

[0079] Fig. 12 is a partial enlarged view of B in Fig. 11.

[0080] Fig. 13 is a partial enlarged view of C in Fig. 11.

[0081] Fig. 14 is a schematic view of the cooperation structure of the first glue supply mechanism, the first glue applying mechanism, the second glue supply mechanism and the second glue applying mechanism according to the embodiment of the present application.

[0082] Fig. 15 is an enlarged view of D in Fig. 14.

[0083] Fig. 16 is a schematic view of the partial structure of the glue applying device according to the embodiment of the present application.

[0084] Legend: conveying mechanism 100; conveying belt 110; first glue applying mechanism 200; first suction accessory 210; first support 220; first buffer structure 230; first spring 231; first connecting member 240; first driving member 250; third driving member 260; second glue applying mechanism 300; second suction accessory 310; second support 320; second buffer structure 330; second spring 331; second connecting member 340; second driving member 350; fourth driving member 360; first detection mechanism 400; second detection mechanism 500; rack 600; second deviation rectifying mechanism 700; first deviation rectifying mechanism 800; pole piece 900; tab 910; first surface 911; second surface 912; pole piece supply mechanism 10; die cutting mechanism 20; first glue supply mechanism 30; first glue applying mechanism 40; first clamping member 41; first clamping portion 41a; second clamping portion 41b; first cutting member 42; second clamping member 43; third clamping portion 43a; fourth clamping portion 43b; fifth driving member 44; sixth driving member 45; seventh driving member 46; eighth driving member 47; second glue supply mechanism 50; second glue applying mechanism 60; third clamping member 61; second cutting member 62; first adhesive tape 101; second adhesive tape 102; first adhesive material 103; second adhesive material 104; pole piece material belt 105; glue applying station R1; thickness direction Z; first axis X1; second axis X2; first preset direction Y1; second preset direction Y2; third preset direction Y3; fourth preset direction Y4. DETAILED DESCRIPTION

[0085] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0086] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0087] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0088] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0089] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0090] It is to be noted that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are used for explanation only and are not intended to be limiting.

[0091] At present, from the development of market situation, the application of battery is more and more extensive. The battery is not only applied to the energy storage power system of hydropower, thermal power, wind power and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of battery, the demand of its market is also increasing.

[0092] The battery is composed of one or more battery monomers. For each battery, the plurality of battery monomers constituting it can be connected in series or in parallel or in mixed connection. Among them, mixed connection means that there are series connection and parallel connection in the plurality of battery monomers.

[0093] The battery monomer is the smallest unit of the battery, and in the structure of the battery monomer of the solid-state laminated battery, the shell and the electrode assembly are included. The electrode assembly is the component where the electrochemical reaction occurs in the battery monomer, and the electrode assembly includes the positive electrode sheet and the negative electrode sheet. One or more electrode assemblies can be included in the shell, and the electrode assembly is mainly formed by laminating the positive electrode sheet and the negative electrode sheet.

[0094] In the production process of laminated battery, when the battery electrode sheet is laminated, the tab root of the adjacent positive electrode sheet is easy to be overlapped with the end of the negative electrode sheet, causing the positive and negative electrode sheets to be short-circuited, and the tab root of the electrode sheet needs to be pasted with glue to reduce the probability of short-circuiting between the adjacent positive and negative electrode sheets.

[0095] In the related art, the tab on the electrode sheet strip is pasted with glue during the tab formation of the electrode sheet strip, that is, a continuous adhesive tape is pasted on the tab root of each tab at the edge of the electrode sheet strip, and then the electrode sheet strip pasted with the continuous adhesive tape is wound. Since the tab is pasted with glue, there is a thickness difference between the tab and the electrode sheet, causing irregular areas such as cone shape of the roll after the electrode sheet strip is wound into a roll.

[0096] When the electrode sheet strip pasted with the continuous adhesive tape is unwound, since the roll has irregular areas such as cone shape, the electrode sheet strip is unevenly stressed when unwound, causing the electrode sheet strip to deviate relatively from the running direction when running, affecting the cutting accuracy of the cutting device for cutting the electrode sheet strip in the running into single electrode sheets, causing the quality of the laminated electrode sheet to decrease, and reducing the quality of the battery production.

[0097] Based on this, in view of the problem that the current method of pasting a continuous adhesive tape on the root of each tab at the edge of the tab material belt causes the subsequent tab stacking forming quality to decline, and reduces the battery production quality, one or more embodiments of the present application provide a taping device. By cooperating the conveying mechanism, the first taping mechanism and the second taping mechanism, the plurality of tabs with tabs are pasted one by one, so that each tab with adhesive tape can be directly conveyed to the stacking station by the conveying mechanism in the form of stacking, compared with the existing method of pasting a continuous adhesive tape on the root of each tab at the edge of the tab material belt, the action of winding and unwinding the tab with adhesive tape is saved, thereby solving the problem that the tab with adhesive tape is offset relative to the tape running direction during the winding and unwinding process, and the tab stacking forming quality is reduced, effectively improving the tab stacking forming quality and improving the battery production quality.

[0098] Referring to FIGS. 1, 2 and 3, the present application provides a taping device, which comprises a conveying mechanism 100, a first taping mechanism 200 and a second taping mechanism 300.

[0099] The conveying mechanism 100 is used to carry a plurality of tabs 900 with tabs 910 and convey the plurality of tabs 900 to the taping station R1 one by one. The connection between the tab 900 and the tab 910 has a first surface 911 and a second surface 912 in the thickness direction Z.

[0100] Referring to FIG. 4, the first taping mechanism 200 comprises a first suction member 210 for suctioning a first adhesive tape 101. The first suction member 210 can move towards the direction close to the taping station R1 to paste the first adhesive tape 101 on the first surface 911.

[0101] Referring to FIGS. 5, 6 and 7, the second taping mechanism 300 comprises a second suction member 310 for suctioning a second adhesive tape 102. The second suction member 310 can move towards the direction close to the taping station R1 to paste the second adhesive tape 102 on the second surface 912.

[0102] In the present application, referring to FIG. 1 and FIG. 2, after the tab 910 is die-cut at the edge of the pole piece 900, the connecting part between the pole piece 900 and the tab 910 is the root of the tab 910, and the opposite first surface 911 and second surface 912 of the connecting part between the pole piece 900 and the tab 910 in the thickness direction Z are the front and back of the area defined by the end of the pole piece 900 and the root of the tab 910 together. After the first suction member 210 pastes the first adhesive tape 101 to the first surface 911, the first adhesive tape 101 covers the front of the end of the pole piece 900 and the root of the tab 910; after the second suction member 310 pastes the second adhesive tape 102 to the second surface 912, the second adhesive tape 102 covers the back of the end of the pole piece 900 and the root of the tab 910.

[0103] In this way, when the pole piece 900 is laminated, the isolation effect of the first adhesive tape 101 and the second adhesive tape 102 can effectively reduce the probability of short circuit caused by the contact between the root of the tab of the adjacent positive pole piece and the end of the negative pole piece.

[0104] It should be noted that in the present application, the first adhesive tape 101 and the second adhesive tape 102 are both sheet materials, such as adhesive film and release tape, and the first adhesive tape 101 and the second adhesive tape 102 are both insulating structures. For example, the first adhesive tape 101 and the second adhesive tape 102 are both release tapes, that is, the surface of the first adhesive tape 101 away from the pole piece 900 is a glue joint surface with adhesive property, and the surface of the first adhesive tape 101 away from the pole piece 900 is a release paper surface which can also be understood as a back glue surface without adhesive property. The structure of the second adhesive tape 102 is the same as that of the first adhesive tape 101, which will not be described here.

[0105] It should be noted that referring to FIG. 3, in the present application, the conveying mechanism 100 can be but is not limited to a power conveying mechanism with bearing and conveying functions such as a conveyor belt, a conveyor roller, a linear module, etc. The beginning end and the end of the conveying mechanism 100 can be respectively connected to a pole piece unloading station and a lamination station, and a tape gluing station R1 is arranged on the conveying path of the pole piece 900, the tape gluing station R1 is located between the pole piece unloading station and the lamination station, and the first tape gluing mechanism 200 and the second tape gluing mechanism 300 are arranged at the tape gluing station R1.

[0106] The pole piece unloading station connected to the beginning end of the conveying mechanism 100 can be provided with a pole piece feeding mechanism 10 and a die-cutting mechanism 20, the pole piece feeding mechanism 10 is used to unwind and pull the pole piece material belt 105 to move in a first preset direction Y1, and the die-cutting mechanism 20 is arranged between the pole piece feeding mechanism 10 and the conveying mechanism 100, and the die-cutting mechanism 20 is used to cut the pole piece material belt 105 into a plurality of pole pieces 900 with tabs 910.

[0107] In this way, the conveying mechanism 100 receives the tab sheet 900 with the tab 910 one by one and conveys the plurality of tab sheets 900 with the tab 910 one by one to the gluing station R1, so that the first suction accessory 210 and the second suction accessory 310 perform the gluing process on the single tab sheet 900 at the gluing station R1, and the tab sheet 900 after gluing can be directly conveyed by the conveying mechanism 100 to the lamination station for lamination forming.

[0108] In addition, it should be noted that in the present application, when the tab sheet 900 with the tab 910 is carried on the surface of the conveying mechanism 100, the tab 910 and the end of the tab sheet 900 protrude from the edge of the surface of the conveying mechanism 100, that is, the tab sheet 900 with the tab 910 is in a suspended state during movement in the conveying direction, thereby providing a space for the first suction accessory 210 and the second suction accessory 310 to move to the gluing station R1, so that the first suction accessory 210 and the second suction accessory 310 can smoothly paste the first adhesive tape 101 and the second adhesive tape 102 on the first surface 911 and the second surface 912, respectively.

[0109] It should be noted that the gluing actions of the first suction accessory 210 and the second suction accessory 310 can be performed simultaneously or sequentially.

[0110] For example, the action of the first suction accessory 210 pasting the first adhesive tape 101 on the first surface 911 of the tab sheet 900 and the action of the second suction accessory 310 pasting the second adhesive tape 102 on the second surface 912 of the tab sheet 900 are performed sequentially, which can reduce the risk of tearing of the first surface 911 and the second surface 912 of the tab sheet 900.

[0111] It should be noted that in the present application, the number of gluing stations R1, first gluing mechanisms 200 and second gluing mechanisms 300 is not limited, for example, there can be a plurality of gluing stations R1, and each gluing station R1 is provided with a pair of first gluing mechanisms 200 and second gluing mechanisms 300. After the conveying mechanism 100 synchronously conveys a plurality of tab sheets 900 with tabs 910 to the corresponding gluing stations R1, the first gluing mechanisms 200 and the second gluing mechanisms 300 perform gluing on the tab sheets 900 at the corresponding gluing stations R1.

[0112] In this way, the gluing process for a plurality of tab sheets 900 is completed at one time, improving the efficiency of gluing a plurality of tab sheets 900, and further improving the efficiency of tab lamination forming, thereby improving the efficiency of battery production.

[0113] It is easy to understand that, referring to FIG. 3, the gluing device of the present application performs the gluing process on the tab sheet 900 as follows:

[0114] After the conveying mechanism 100 conveys the plurality of the pole piece 900 with the tab 910 to the adhesive applying station R1 one by one, the conveying mechanism 100 stops working, the first suction accessory 210 with the first adhesive tape 101 moves towards the adhesive applying station R1, so as to apply the first adhesive tape 101 to the first surface 911 of the pole piece 900. The second suction accessory 310 moves towards the adhesive applying station R1, so as to apply the second adhesive tape 102 to the second surface 912 of the pole piece 900. Then, the conveying mechanism 100 continues to work, so as to convey each pole piece 900 with the adhesive tape in a laminated shape to the laminating station for laminating.

[0115] In this way, by cooperation of the conveying mechanism 100, the first adhesive applying mechanism 200 and the second adhesive applying mechanism 300, each pole piece 900 with the adhesive tape can be conveyed by the conveying mechanism 100 to the laminating station for laminating in a laminated shape by applying adhesive tape to the plurality of the pole piece 900 with the tab 910 one by one. Compared with the prior adhesive applying mode of applying continuous adhesive tape to each tab root at the edge of the pole piece tape, the action of winding and unwinding the pole piece 900 with the adhesive tape is saved, so as to solve the problem of the pole piece 900 with the adhesive tape deviating from the tape running direction during winding and unwinding, and effectively improve the laminating quality of the pole piece and the quality of the battery production.

[0116] In some embodiments of the present application, referring to FIGS. 5, 6, 7 and 8, the second adhesive applying mechanism 300 further comprises a second support 320, the second support 320 and the second suction accessory 310 can alternatively correspond to the second surface 912 in the thickness direction Z, and the second support 320 can move towards the adhesive applying station R1 to support the second surface 912 when the first suction accessory 210 applies the first adhesive tape 101 to the first surface 911.

[0117] It should be noted that the conveying mechanism 100 comprises a conveying belt 110 for carrying and conveying the pole piece 900. During the process of being conveyed by the conveying belt 110 to the adhesive applying station R1, the tab 910 and the end of the pole piece 900 protrude from the surface edge of the conveying belt 110, so as to provide a space for the first suction accessory 210 and the second suction accessory 310 to move to the adhesive applying station R1.

[0118] In some embodiments, referring to FIGS. 6 and 7, the second gluing mechanism 300 further comprises a second connecting member 340 and a second driving member 350, the second supporting member 320 and the second suction member 310 are arranged on the second connecting member 340, and an output end of the second driving member 350 is connected to the second connecting member 340 to drive the second supporting member 320 and the second suction member 310 to rotate around the second axis X2 through the second connecting member 340, so that the second supporting member 320 and the second suction member 310 are alternately corresponding to the second surface 912 in the thickness direction Z.

[0119] The second driving member 350 can be a rotary driving member such as a motor, and the second axis X2 corresponds to the rotation axis of the second driving member 350.

[0120] Referring to FIGS. 6 and 7, the second gluing mechanism 300 further comprises a fourth driving member 360, and an output end of the fourth driving member 360 is connected to the second driving member 350 to drive the second driving member 350 to move up and down in the thickness direction Z, so that the second driving member 350, the second connecting member 340 connected to the output end of the second driving member 350, and the second supporting member 320 and the second suction member 310 arranged on the second connecting member 340 are synchronously moved towards or away from the gluing station R1.

[0121] The fourth driving member 360 can be a cylinder, a hydraulic cylinder, an electric push rod, or a driving structure composed of a motor and a transmission assembly, and the transmission assembly can be a bidirectional screw, a gear and a rack, etc. For example, the fourth driving member 360 is a driving structure composed of a servo motor and a bidirectional screw to improve the accuracy and stability of the second supporting member 320 and the second suction member 310 in the lifting motion.

[0122] It should be noted that, referring to FIGS. 7 and 8, when the conveying mechanism 100 conveys the tab sheet 900 with the tab 910 on the conveying mechanism 100 to the gluing station R1, the tab 910 and the end of the tab sheet 900 protrude from the edge of the conveying mechanism 100, that is, at the gluing station R1, neither the first surface 911 nor the second surface 912 on the tab sheet 900 is supported by a corresponding structure.

[0123] At this time, the second driving member 350 drives the second connecting member 340 to rotate around the second axis X2, so that the second supporting member 320 on the second connecting member 340 is opposite to the second surface 912 on the tab sheet 900, and the second suction member 310 on the second connecting member 340 is staggered with the second surface 912 on the tab sheet 900 in the up-down direction.

[0124] Then, the fourth driving member 360 drives the second driving member 350 to move towards the direction of the rubberizing station R1, so as to drive the second connecting member 340 and the second supporting member 320 on the second connecting member 340 to move to the rubberizing station R1, and the second supporting member 320 abuts against the second surface 912 of the pole piece 900, so as to support the second surface 912 of the pole piece 900 by the second supporting member 320.

[0125] During the movement of the second supporting member 320 towards the direction of the rubberizing station R1, the first suction member 210 also moves towards the direction of the rubberizing station R1, and abuts against the first surface 911 of the pole piece 900 after the second supporting member 320 supports the second surface 912 of the pole piece 900, and the first suction member 210 continues to move downwards to paste the first adhesive tape 101 on the first surface 911.

[0126] It can be understood that the second supporting member 320 supports the second surface 912 when the first suction member 210 pastes the first adhesive tape 101 on the first surface 911, reduces the probability of the pole piece 900 sagging or bending when the first suction member 210 pastes the first adhesive tape 101 on the first surface 911, and makes the first surface 911 and the second surface 912 of the pole piece 900 bear forces relatively uniformly when the first suction member 210 pastes the first adhesive tape 101 on the first surface 911, so as to reduce the risk of the first adhesive tape 101 cracking or tearing after being pasted on the first surface 911, and improve the pasting quality of the first adhesive tape 101.

[0127] It should be further explained that after the first suction member 210 stably pastes the first adhesive tape 101 on the first surface 911, the first suction member 210 breaks the vacuum and releases the suction of the first adhesive tape 101, and keeps abutting against the first surface 911.

[0128] Then, the fourth driving member 360 drives the second driving member 350 to move away from the rubberizing station R1, so as to make the second supporting member 320 separate from the second surface 912 of the pole piece 900. When the fourth driving member 360 drives the second supporting member 320 to move to a certain distance from the second surface 912 of the pole piece 900, the second driving member 350 drives the second connecting member 340 to rotate around the second axis X2, so as to make the second suction member 310 on the second connecting member 340 face the second surface 912 of the pole piece 900, and make the second supporting member 320 on the second connecting member 340 and the second surface 912 of the pole piece 900 stagger in the up-down direction.

[0129] Then, the fourth driving member 360 drives the second connecting member 340 and the second suction accessory 310 to move to the rubberizing station R1 by driving the second driving member 350 to move in the direction close to the rubberizing station R1, so that the second suction accessory 310 pastes the second adhesive tape 102 on the second surface 912 of the pole piece 900.

[0130] It can be understood that, since the first suction accessory 210 stably pastes the first adhesive tape 101 on the first surface 911 and still abuts against the first surface 911, the first suction accessory 210 supports the first surface 911 when the second suction accessory 310 pastes the second adhesive tape 102 on the second surface 912, reduces the probability that the pole piece 900 is warped or deformed when the second suction accessory 310 pastes the second adhesive tape 102 on the second surface 912, and makes the first surface 911 and the second surface 912 of the pole piece 900 bear forces relatively uniformly when the second suction accessory 310 pastes the second adhesive tape 102 on the second surface 912, reduces the risk that the second adhesive tape 102 is cracked or torn after being pasted on the second surface 912, and improves the pasting quality of the second adhesive tape 102.

[0131] It can be understood that, the rubberizing device in the embodiment of the present application is provided with the second supporting member 320, and the second supporting member 320 and the second suction accessory 310 are alternately corresponding to the second surface 912 in the thickness direction Z, so that the second supporting member 320 supports the second surface 912 when the first suction accessory 210 pastes the first adhesive tape 101 on the first surface 911, and the first suction accessory 210 supports the first surface 911 when the second suction accessory 310 pastes the second adhesive tape 102 on the second surface 912, reduces the probability that the pole piece 900 is warped, warped or deformed during the rubberizing process, reduces the risk that the first adhesive tape 101 and the second adhesive tape 102 are cracked or torn after being pasted on the corresponding surfaces of the pole piece 900, and improves the pasting quality of the first adhesive tape 101 and the second adhesive tape 102.

[0132] Moreover, in the embodiment of the present application, the second supporting member 320 and the second suction accessory 310 are both arranged on the second connecting member 340, and the second driving member 350 drives the second supporting member 320 and the second suction accessory 310 to rotate around the second axis X2 through the second connecting member 340, so that the second supporting member 320 and the second suction accessory 310 alternately correspond to the second surface 912 in the thickness direction Z, the second supporting member 320 and the second suction accessory 310 alternately abut against the second surface 912 of the pole piece 900 in a short time, improve the pasting quality of the first adhesive tape 101 and the second adhesive tape 102, and also improve the rubberizing efficiency of the first adhesive tape 101 and the second adhesive tape 102.

[0133] It should be noted that in the gluing device of the embodiments of the present application, in the process of moving the first suction accessory 210 to the direction close to the gluing station R1 to enable the first adhesive tape 101 on the first suction accessory 210 to be adhered to the first surface 911 of the polar sheet 900, since the polar sheet 900 in sheet shape has a relatively fragile structure, and the first suction accessory 210 directly presses the first adhesive tape 101 to the first surface 911 of the polar sheet 900 under the driving force of the linear driving source, the first surface 911 of the polar sheet 900 is easily pulled and torn due to the sudden external pressure, which causes the structure of the polar sheet 900 to be damaged and reduces the adhesion quality of the first adhesive tape 101.

[0134] Similarly, the second surface 912 of the polar sheet 900 is also easily pulled and torn due to the sudden external pressure, which causes the structure of the polar sheet 900 to be damaged and also reduces the adhesion quality of the second adhesive tape 102.

[0135] Based on the above situation, in some embodiments of the present application, referring to FIGS. 4, 6, 7 and 9, the first gluing mechanism 200 further comprises a first buffer structure 230 connected with the first suction accessory 210, and the first buffer structure 230 is used to apply a first elastic force to the first suction accessory 210 when the first suction accessory 210 adheres the first adhesive tape 101 to the first surface 911.

[0136] It can be understood that when the first suction accessory 210 adheres the first adhesive tape 101 on it to the first surface 911 of the polar sheet 900 under the driving of the linear driving source, the first suction accessory 210 is subjected to the first elastic force applied by the first buffer structure 230, so that the first suction accessory 210 can slowly press the first adhesive tape 101 on it to the first surface 911 of the polar sheet 900 and adhere it.

[0137] In this way, the pressure on the first surface 911 of the polar sheet 900 is gradually increased rather than rapidly changed, which reduces the probability of the first surface 911 of the polar sheet 900 being pulled and torn due to overpressure, reduces the risk of the structure of the polar sheet 900 being damaged, and improves the adhesion quality of the first adhesive tape 101.

[0138] Similarly, referring to FIGS. 6, 7 and 10, the second gluing mechanism 300 further comprises a second buffer structure 330 connected with the second suction accessory 310, and the second buffer structure 330 is used to apply a second elastic force to the second suction accessory 310 when the second suction accessory 310 adheres the second adhesive tape 102 to the second surface 912.

[0139] When the second suction accessory 310 is driven by the linear driving source to paste the second adhesive tape 102 thereon to the second surface 912 on the pole piece 900, the second suction accessory 310 is subjected to the first elastic force applied by the second buffer structure 330, so that the second suction accessory 310 can slowly press the second adhesive tape 102 thereon to the second surface 912 on the pole piece 900 and paste the second adhesive tape 102 thereon to the second surface 912 on the pole piece 900.

[0140] In this way, the pressure on the second surface 912 on the pole piece 900 is gradually increased rather than rapidly changed, the probability of the second surface 912 on the pole piece 900 being over-pressed and being pulled and torn is reduced, the risk of the structure of the pole piece 900 being damaged is reduced, and the pasting quality of the second adhesive tape 102 is improved.

[0141] It should be noted that, based on the foregoing description, when the second suction accessory 310 pastes the second adhesive tape 102 to the second surface 912 on the pole piece 900, the first suction accessory 210 supports the first surface 911 on the pole piece 900. Since the first suction accessory 210 and the second suction accessory 310 are subjected to the first elastic force and the second elastic force applied by the first buffer structure 230 and the second buffer structure 330 respectively, and the first elastic force applied by the first buffer structure 230 to the first suction accessory 210 and the second elastic force applied by the second buffer structure 330 to the second suction accessory 310 are difficult to keep equal, the first suction accessory 210 is prone to displacement and thus deviates from supporting the first surface 911, and further, the pole piece 900 is prone to warping or bending deformation due to lack of stable support during the process of the second suction accessory 310 pasting the second adhesive tape 102 to the second surface 912 on the pole piece 900, which causes the second surface 912 on the pole piece 900 to be torn and reduces the pasting quality of the second adhesive tape 102.

[0142] Based on this, in some embodiments, referring to FIGS. 6, 7 and 8, the first suction accessory 210 can support the first surface 911 when the second suction accessory 310 pastes the second adhesive tape 102 to the second surface 912, and when the first suction accessory 210 supports the first surface 911, the first elastic force is greater than the second elastic force.

[0143] It can be understood that, when the first suction accessory 210 stably pastes the first adhesive tape 101 to the first surface 911 and maintains the state of abutting against the first surface 911 on the pole piece 900, the first suction accessory 210 is subjected to the first elastic force applied by the first buffer structure 230 to maintain the state of supporting the first surface 911 on the pole piece 900. At this time, the second suction accessory 310 moves towards the first suction accessory 210 under the driving of the linear driving source, so as to paste the second adhesive tape 102 thereon to the second surface 912 on the pole piece 900.

[0144] In the process that the second suction accessory 310 sticks the second adhesive tape 102 thereon to the second surface 912 of the pole piece 900, since the first elastic force applied to the first suction accessory 210 by the first buffer structure 230 is greater than the second elastic force applied to the second suction accessory 310 by the second buffer structure 330, the first suction accessory 210 can effectively keep the state of supporting the first surface 911 of the pole piece 900, so that the first suction accessory 210 and the second suction accessory 310 can keep the pressing state to the first surface 911 and the second surface 912 of the pole piece 900 respectively, so that the first surface 911 and the second surface 912 of the pole piece 900 are subjected to relatively uniform forces, reducing the probability that the first suction accessory 210 is displaced and separated from the support of the first surface 911, thereby reducing the risk of tearing the second surface 912 of the pole piece 900 and improving the sticking quality of the second adhesive tape 102.

[0145] In some embodiments, referring to FIGS. 4, 6, 7, 8 and 9, the first adhesive taping mechanism 200 further comprises a first connecting piece 240, and the first buffer structure 230 comprises a first spring 231, and the first suction accessory 210 is slidingly connected to the first connecting piece 240, and the first spring 231 is clamped between the first connecting piece 240 and the first suction accessory 210.

[0146] In some embodiments, referring to FIG. 9, the first buffer structure 230 further comprises a first guide column (not shown in the figure), the first guide column is arranged in the thickness direction Z of the first connecting piece 240, the first spring 231 is sleeved on the first guide column, and the two ends of the first spring 231 abut against the first connecting piece 240 and the first suction accessory 210 respectively.

[0147] It is easy to understand that the first guide column can guide the compression or elongation of the first spring 231, so that the first spring 231 can stretch or contract along its own axis.

[0148] It is not difficult to understand that, in the process that the first suction accessory 210 sticks the first adhesive tape 101 thereon to the first surface 911 of the pole piece 900 under the driving of the linear driving source, the first spring 231 is compressed to apply the first elastic force to the first suction accessory 210, giving the first suction accessory 210 elastic buffer, so that the first suction accessory 210 slowly presses and sticks the first adhesive tape 101 thereon to the first surface 911 of the pole piece 900, reducing the probability that the first surface 911 of the pole piece 900 is over-pressed and torn, reducing the risk of damage to the structure of the pole piece 900, and improving the sticking quality of the first adhesive tape 101.

[0149] Similarly, referring to FIGS. 6, 7, 8 and 10, the second adhesive attaching mechanism 300 further comprises a second connecting member 340, the second buffer structure 330 comprises a second spring 331, the second suction member 310 is slidingly connected to the second connecting member 340, and the second spring 331 is clamped between the second connecting member 340 and the second suction member 310. The wire diameter of the first spring 231 is greater than the wire diameter of the second spring 331.

[0150] In some embodiments, referring to FIG. 10, the second buffer structure 330 further comprises a second guide column (not shown in the figure), the second guide column is arranged along the thickness direction Z of the second connecting member 340, the second spring 331 is sleeved on the second guide column, and the two ends of the second spring 331 abut against the second connecting member 340 and the second suction member 310, respectively.

[0151] The second guide column can guide the compression or elongation of the second spring 331, so that the second spring 331 can stretch or contract along its own axis.

[0152] When the second suction member 310 is driven by the linear driving source to paste the second adhesive tape 102 thereon to the second surface 912 of the pole piece 900, the second spring 331 is compressed to apply a second elastic force to the second suction member 310, so as to give the second suction member 310 an elastic buffer, so that the second suction member 310 slowly presses and pastes the second adhesive tape 102 thereon to the second surface 912 of the pole piece 900, reduces the probability of the second surface 912 of the pole piece 900 being pulled and torn due to overpressure, reduces the risk of damage to the structure of the pole piece 900, and improves the pasting quality of the second adhesive tape 102.

[0153] It should be noted that the wire diameter of the first spring 231 can be understood as the diameter of the steel wire used to manufacture the first spring 231, and the wire diameter of the second spring 331 can also be understood as the diameter of the steel wire used to manufacture the second spring 331.

[0154] After the first suction member 210 stably pastes the first adhesive tape 101 to the first surface 911, the second suction member 310 will maintain the state of abutting against the first surface 911 of the pole piece 900. At this time, the second suction member 310 pastes the second adhesive tape 102 thereon to the second surface 912 of the pole piece 900. In this process, the second suction member 310 is driven by the linear driving source and is also subjected to the second elastic force applied by the second spring 331 towards the first suction member 210.

[0155] Due to the manner that the wire diameter of the first spring 231 is set to be greater than the wire diameter of the second spring 331, the first elastic force of the first spring 231 towards the second suction member 310 applied to the first suction member 210 during the process that the second suction member 310 presses the first suction member 210 through the pole piece 900 will be greater than the second elastic force of the second spring 331 towards the first suction member 210, so that the first suction member 210 can effectively maintain the state of supporting the first surface 911 on the pole piece 900, so that the first surface 911 and the second surface 912 on the pole piece 900 are subjected to relatively uniform forces, reducing the probability that the first suction member 210 is displaced and separated from the support of the first surface 911, thereby reducing the risk of tearing of the second surface 912 on the pole piece 900, and improving the bonding quality of the second adhesive tape 102.

[0156] In some embodiments of the present application, referring to FIGS. 4, 6, 7, 8 and 9, the first adhesive taping mechanism 200 further comprises a first support member 220, the first support member 220 and the first suction member 210 can alternately correspond to the first surface 911 in the thickness direction Z, and the first support member 220 can move towards the direction close to the adhesive taping station R1 to support the first surface 911 when the second suction member 310 bonds the second adhesive tape 102 to the second surface 912.

[0157] In some embodiments, referring to FIGS. 4, 7, 8 and 9, the first adhesive taping mechanism 200 further comprises a first connecting member 240 and a first driving member 250, the first support member 220 and the first suction member 210 are arranged on the first connecting member 240, and the output end of the first driving member 250 is connected to the first connecting member 240 to drive the first support member 220 and the first suction member 210 to rotate around the first axis X1 through the first connecting member 240, so that the first support member 220 and the first suction member 210 alternately correspond to the first surface 911 in the thickness direction Z.

[0158] The first driving member 250 can be a rotary driving member such as a motor or a motor, and the first axis X1 corresponds to the rotation axis of the first driving member 250.

[0159] The first adhesive taping mechanism 200 further comprises a third driving member 260, and the output end of the third driving member 260 is connected to the first driving member 250 to drive the first driving member 250 to ascend and descend in the thickness direction Z, so that the first driving member 250, the first connecting member 240 connected to the output end of the first driving member 250, and the first support member 220 and the first suction member 210 arranged on the first connecting member 240 are synchronously moved towards or away from the adhesive taping station R1.

[0160] The third driving member 260 can be a pneumatic cylinder, a hydraulic cylinder, an electric push rod, or a driving structure formed by cooperation of a motor and a transmission assembly. The transmission assembly can be a bidirectional screw, a gear and a rack, or the like. Exemplarily, the third driving member 260 is a driving structure formed by cooperation of a servo motor and a bidirectional screw, so as to improve the accuracy and stability of the lifting movement of the first support member 220 and the first absorbing member 210.

[0161] At this time, the first driving member 250 drives the first connecting member 240 to rotate around the first axis X1, so that the first support member 220 on the first connecting member 240 is opposite to the first surface 911 on the pole piece 900, and the first absorbing member 210 on the first connecting member 240 is staggered with the first surface 911 on the pole piece 900 in the up-down direction.

[0162] Then, the third driving member 260 drives the first driving member 250 to move towards the direction of the rubberizing station R1, so as to drive the first connecting member 240 and the first support member 220 thereon to move to the rubberizing station R1, and make the first support member 220 abut against the first surface 911 on the pole piece 900, so as to support the first surface 911 on the pole piece 900 by the first support member 220.

[0163] During the movement of the first support member 220 towards the direction of the rubberizing station R1, the second absorbing member 210 also moves towards the direction of the rubberizing station R1, and abuts against the second surface 912 on the pole piece 900 after the first support member 220 supports the first surface 911 on the pole piece 900. The second absorbing member 310 continues to move upwards, so as to paste the second adhesive tape 102 thereon on the second surface 912.

[0164] It can be understood that the first support member 220 supports the first surface 911 when the second absorbing member 310 pastes the second adhesive tape 102 on the second surface 912, reduces the probability of the pole piece 900 being warped or deformed when the second absorbing member 310 pastes the second adhesive tape 102 on the second surface 912, and makes the first surface 911 and the second surface 912 on the pole piece 900 be stressed relatively uniformly when the second absorbing member 310 pastes the second adhesive tape 102 on the second surface 912, so as to reduce the risk of the second adhesive tape 102 being cracked or torn after being pasted on the second surface 912, and improve the pasting quality of the second adhesive tape 101.

[0165] Moreover, the first support 220 supports the first surface 911 when the second suction member 310 pastes the second adhesive tape 102 to the second surface 912, and because the first support 220 is not elastically constrained by the relevant buffer structure, the probability that the first support 220 is displaced and loses support for the first surface 911 when the second suction member 310 pastes the second adhesive tape 102 to the second surface 912 is directly reduced, and the first surface 911 and the second surface 912 on the pole piece 900 are relatively uniformly stressed when the second suction member 310 pastes the second adhesive tape 102 to the second surface 912 on the pole piece 900, so that the pole piece 900 remains flat during the adhesive taping process, thereby improving the adhesive taping quality of the second adhesive tape 102.

[0166] In addition, in the embodiment of the present application, the first support 220 and the first suction member 210 are both arranged on the first connecting member 240, and the first driving member 250 drives the first support 220 and the first suction member 210 to rotate around the first axis X1 through the first connecting member 240, so that the first support 220 and the first suction member 210 are alternately in correspondence with the first surface 911 in the thickness direction Z, and the first support 220 and the first suction member 210 can alternately abut against the first surface 912 on the pole piece 900 in a short time, thereby improving the adhesive taping quality of the first adhesive tape 101 and the second adhesive tape 102, and also improving the adhesive taping efficiency of the first adhesive tape 101 and the second adhesive tape 102.

[0167] It is not difficult to understand that in the adhesive taping device of the embodiment of the present application, the first support 220 and the second support 320 are arranged respectively, and the first support 220 and the first suction member 210 are alternately in correspondence with the first surface 911 on the pole piece 900 in the thickness direction Z, and the second support 320 and the second suction member 310 are alternately in correspondence with the second surface 912 on the pole piece 900 in the thickness direction Z, so that the first support 220 supports the first surface 911 when the second suction member 310 pastes the second adhesive tape 102 to the second surface 912, and the second support 320 supports the second surface 912 when the first suction member 210 pastes the first adhesive tape 101 to the first surface 911, thereby reducing the probability of sagging, warping and bending deformation of the pole piece 900 during the adhesive taping process, reducing the risk of cracking and tearing of the first adhesive tape 101 and the second adhesive tape 102 after being pasted to the corresponding surface on the pole piece 900, and improving the adhesive taping quality of the first adhesive tape 101 and the second adhesive tape 102.

[0168] In addition, it should be noted that, in some embodiments of the present application, when the first support 220 is used to support the first surface 911 of the pole piece 900 during the process of the second adhesive member 310 adhering the second adhesive tape 102 to the second surface 912 of the pole piece 900, since the first adhesive member 210 will not be in contact with the first surface 911 of the pole piece 900 during the process, the first buffer structure 230 can not be required to have a first elastic force greater than the second elastic force of the second buffer structure 330 applied to the second adhesive member 310, that is, the first spring 231 of the first buffer structure 230 can not be required to have a wire diameter greater than the wire diameter of the second spring 331 of the second buffer structure 330, and the first spring 231 of the first buffer structure 230 and the second spring 331 of the second buffer structure 330 can be of the same specification, thereby reducing the overall assembly difficulty of the adhesive taping device.

[0169] It should be noted that, during the process of the conveying mechanism 100 conveying the pole piece 900 with the pole lug 910 to the adhesive taping station R1, the pole piece 900 is prone to slipping or deviating relative to the bearing surface of the conveying mechanism 100, which makes it difficult for the first surface 911 and the second surface 912 of the pole piece 900 to be positioned at the preset positions for adhesive taping.

[0170] Based on this, in some embodiments of the present application, referring to FIGS. 3, 4 and 9, the adhesive taping device further comprises a first detection mechanism 400 and a first deviation correction mechanism 800.

[0171] The first detection mechanism 400 is configured to obtain the spatial position information of the pole piece 900 at the adhesive taping station R1. The first deviation correction mechanism 800 is drivingly connected to the first adhesive member 210 and is configured to adjust the spatial position of the first adhesive member 210 according to the position information obtained by the first detection mechanism 400, so that the first adhesive tape 101 on the first adhesive member 210 is opposite to the first surface 911.

[0172] In some embodiments, the first detection mechanism 400 can be in communication connection with the first deviation correction mechanism 800, and the first detection mechanism 400 can be arranged above the adhesive taping station R1. The first detection mechanism 400 can be, but is not limited to, a vision sensor such as a CCD camera. The first deviation correction mechanism 800 can be, but is not limited to, a rotary driver such as a motor or an electric motor, which can drive the first adhesive member 210 to rotate about the first axis X1 to adjust the spatial position of the first adhesive member 210.

[0173] When the pole piece 900 is conveyed to the gluing station R1, the first detection mechanism 400 photographs the pole piece 900 on the gluing station R1, and obtains the position information of the pole piece 900 on the gluing station R1. The background controller obtains the detection signal of the first detection mechanism 400, and compares and analyzes the position information of the pole piece 900 corresponding to the detection signal with the preset position, so as to determine whether the position of the pole piece 900 on the gluing station R1 meets the position precision requirement of the first suction accessory 210 for gluing.

[0174] The background controller controls the first deviation rectifying mechanism 800 to act according to the image comparison and analysis result, so that the first deviation rectifying mechanism 800 drives the first suction accessory 210 to rotate around the first axis X1, and the first adhesive tape 101 on the first suction accessory 210 is opposite to the first surface 911 on the pole piece 900. In this way, the first suction accessory 210 is linearly lowered to accurately paste the first adhesive tape 101 to the first surface 911 on the pole piece 900, and the pasting quality of the first adhesive tape 101 is improved.

[0175] Similarly, in order to improve the pasting quality of the second adhesive tape 102 on the second surface 912 on the pole piece 900, referring to FIGS. 3, 8 and 10, the gluing device further comprises a second detection mechanism 500 and a second deviation rectifying mechanism 700.

[0176] The second detection mechanism 500 is configured to obtain the position information of the pole piece 900 on the gluing station R1 in space. The second deviation rectifying mechanism 700 is drivingly connected with the second suction accessory 310, and is configured to adjust the position of the second suction accessory 310 in space according to the position information obtained by the second detection mechanism 500, so that the second adhesive tape 102 on the second suction accessory 310 is opposite to the second surface 912.

[0177] In some embodiments, the second detection mechanism 500 can be communicatively connected with the second deviation rectifying mechanism 700, and the second detection mechanism 500 can be arranged below the gluing station R1. The second detection mechanism 500 can be but is not limited to a visual sensor such as a CCD camera. The second deviation rectifying mechanism 700 can be but is not limited to a rotary driver such as a motor or a motor, which can drive the second suction accessory 310 to rotate around the second axis X2, so as to adjust the position of the second suction accessory 310 in space.

[0178] When the pole piece 900 is conveyed to the gluing station R1, the second detection mechanism 500 photographs the pole piece 900 on the gluing station R1, and obtains the position information of the pole piece 900 on the gluing station R1. The background controller obtains the detection signal of the second detection mechanism 500, and compares and analyzes the position information of the pole piece 900 corresponding to the detection signal with the preset position, so as to determine whether the position of the pole piece 900 on the gluing station R1 meets the position precision requirement of the second suction accessory 310 for gluing.

[0179] The background controller controls the second deviation rectifying mechanism 700 to rotate the second suction accessory 310 around the second axis X2 according to the image comparison analysis result, so that the second adhesive tape 102 on the second suction accessory 310 is opposite to the second surface 912 on the pole piece 900. In this way, the second suction accessory 310 is linearly moved upward to accurately paste the second adhesive tape 102 to the second surface 912 on the pole piece 900, thereby improving the pasting quality of the second adhesive tape 102.

[0180] In some embodiments of the present application, referring to FIG. 3, the adhesive taping device further comprises a pole piece feeding mechanism 10 and a die-cutting mechanism 20.

[0181] The pole piece feeding mechanism 10 is configured to unwind and pull the pole piece material tape 105 to move along a first preset direction Y1, and the conveying mechanism 100 is connected to the end of the pole piece feeding mechanism 10. The die-cutting mechanism 20 is arranged between the pole piece feeding mechanism 10 and the conveying mechanism 100, and is configured to cut the pole piece material tape 105 into a plurality of pole pieces 900 with pole tabs 910.

[0182] In some embodiments, the pole piece feeding mechanism 10 can include a pole piece material tape unwinding assembly and a lead tape assembly. The pole piece material tape unwinding assembly is configured to unwind the pole piece material tape 105 from a roll to the lead tape assembly. The lead tape assembly pulls the pole piece material tape 105 to the die-cutting mechanism 20, and the conveying mechanism 100 is connected to the die-cutting mechanism 20.

[0183] The pole piece material tape unwinding assembly can be a single unwinding roller or a combination of a single unwinding roller and multiple tensioning rollers. The lead tape assembly can be a structure of an upper driven roller and a lower driven roller. The die-cutting mechanism 20 can be a conventional device capable of cutting and slitting the battery pole piece.

[0184] It is not difficult to understand that the adhesive taping device of the present application can cut the pole piece material tape 105 into a plurality of pole pieces 900 with pole tabs 910 during the movement and conveying of the pole piece material tape 105 by the cooperation of the pole piece feeding mechanism 10 and the die-cutting mechanism 20. The pole pieces 900 with pole tabs 910 are conveyed one by one by the conveying mechanism 100 to the adhesive taping station R1 for adhesive taping, so that each pole piece 900 with adhesive tape can be directly conveyed to the pole piece stacking station by the conveying mechanism 100 in a stacked shape. Compared with the existing adhesive taping method of pasting a continuous adhesive tape on each pole tab root at the edge of the pole piece material tape, the adhesive taping device of the present application eliminates the action of winding and unwinding the pole piece 900 with adhesive tape, thereby solving the problem of the pole piece stacking quality degradation caused by the relative deviation of the pole piece 900 with adhesive tape from the tape running direction during the winding and unwinding process of the pole piece 900 with adhesive tape, effectively improving the pole piece stacking quality and the battery production quality.

[0185] In some embodiments of the present application, referring to FIGS. 11, 12 and 13, the adhesive taping device further comprises a first adhesive supply mechanism 30 and a first adhesive cutting mechanism 40.

[0186] The first adhesive supply mechanism 30 is configured to supply the first adhesive material 103. The first adhesive cutting mechanism 40 comprises a first clamping member 41 and a first cutting member 42. The first clamping member 41 is configured to clamp and drive the head of the first adhesive material 103 to move along a second preset direction Y2, so as to pull out the first adhesive material 103 by a first preset length. The first cutting member 42 is configured to cut the first adhesive material 103 pulled out by the first preset length, so as to obtain the first adhesive tape 101.

[0187] The first suction member 210 is configured to suck the first adhesive tape 101 when the first cutting member 42 cuts the first adhesive material 103.

[0188] In some embodiments, the first adhesive supply mechanism 30 can be a single unwinding roller or a combination of a single unwinding roller and multiple tensioning rollers, which is configured to discharge the first adhesive material 103 in a sheet shape.

[0189] The first clamping member 41 can be a jaw cylinder. The first clamping member 41 can be driven by a fifth driving member 44 to move along the second preset direction Y2, so as to clamp and drive the head of the first adhesive material 103 to move along the second preset direction Y2, so as to pull out the first adhesive material 103 by the first preset length. The first preset length corresponds to the length of the single first adhesive tape 101, which is not limited in particular.

[0190] The fifth driving member 44 can be a cylinder, a hydraulic cylinder, an electric push rod, or a combination of a motor and a transmission assembly. For example, the fifth driving member 44 is a driving structure of a motor and a gear rack. The fifth driving member 44 can be installed on a rack 600 of the adhesive taping device.

[0191] The first cutting member 42 can be a cutter. The first cutting member 42 can be driven by a sixth driving member 45 to move along a fourth preset direction Y4 intersecting the second preset direction Y2, so as to cut the first adhesive material 103 pulled out by the first preset length, so as to obtain the first adhesive tape 101. The sixth driving member 45 can be installed on the rack 600 of the adhesive taping device. The second preset direction Y2 and the fourth preset direction Y4 are intersecting straight lines.

[0192] The sixth driving member 45 can be a cylinder, a hydraulic cylinder, an electric push rod, or a combination of a motor and a transmission assembly.

[0193] The first gluing mechanism 200 can be arranged on the output end of the seventh driving member 46 to be moved in space by the seventh driving member 46, so as to drive the first suction accessory 210 to move in space. The seventh driving member 46 can be a three-axis moving platform or a multi-axis mechanical hand, so that the first gluing mechanism 200 and the first suction accessory 210 thereon have multiple directions of movement freedom. The seventh driving member 46 can be mounted on the rack 600 of the gluing device.

[0194] It is easy to understand that the first glue supply mechanism 30 continuously supplies the first glue material 103, the first clamping member 41 clamps the head of the first glue material 103 and drives the head of the first glue material 103 to move in the second preset direction Y2, when the first clamping member 41 pulls out the first glue material 103 by the first preset length, the first suction accessory 210 moves to the back of the first glue material 103 pulled out by the first preset length and adsorbs it. At this time, the first cutting member 42 moves towards the first glue material 103 pulled out by the first preset length, so as to cut the first glue material 103 pulled out by the first preset length, to obtain the first adhesive tape 101 of the first preset length, and the first suction accessory 210 stably adsorbs the first adhesive tape 101 of the first preset length, to realize the taking of the first adhesive tape 101.

[0195] When the first suction accessory 210 needs to take again, the first clamping member 41 and the first cutting member 42 repeat the above-mentioned actions.

[0196] In this way, through the cooperation of the first glue supply mechanism 30 and the first glue applying mechanism 40, the first adhesive tape 101 can be continuously supplied to the first suction accessory 210, so that the first suction accessory 210 continuously pastes the first adhesive tape 101 to the corresponding positions of the pole piece 900 in the gluing station R1 one by one, to improve the gluing efficiency of the batch of pole pieces 900.

[0197] In some embodiments, referring to FIGS. 11 and 12, the first clamping member 41 includes a first clamping part 41a and a second clamping part 41b which can be relatively far away or close to each other, the first clamping part 41a is used to contact the back adhesive surface of the first glue material 103, the second clamping part 41b is used to contact the adhesive surface of the first glue material 103, and the part of the second clamping part 41b contacting the first glue material 103 is configured as a toothed structure.

[0198] In some embodiments, the first clamping part 41a and the second clamping part 41b can be respectively arranged on the two clamping jaws of the clamping cylinder, so as to be driven by the two clamping jaws of the clamping cylinder to be far away or close to each other.

[0199] The part of the second clamping part 41b contacting the first glue material 103 can include a plurality of spaced-apart planar teeth to form a toothed structure.

[0200] It should be understood that when the first clamping member 41 needs to clamp the head of the first adhesive material 103 output by the first adhesive supply mechanism 30, the first clamping portion 41a and the second clamping portion 41b move towards each other, so that the first clamping portion 41a abuts against the back adhesive surface of the head of the first adhesive material 103, and the second clamping portion 41b abuts against the adhesive surface of the head of the first adhesive material 103, so that the head of the first adhesive material 103 is clamped.

[0201] When the first cutting member 42 cuts off the first adhesive material 103 to be pulled out of the first preset length to obtain the first adhesive tape 101 of the first preset length, the first clamping portion 41a and the second clamping portion 41b move away from each other to release the clamping of the first adhesive tape 101, so that the first suction member 210 drives the first adhesive tape 101 to the adhesive applying station R1 to apply the adhesive.

[0202] It can be understood that by configuring the part of the second clamping portion 41b in contact with the first adhesive material 103 as a toothed structure, the contact area of the second clamping portion 41b with the adhesive surface of the first adhesive material 103 can be reduced, the risk of the second clamping portion 41b sticking to the first adhesive material 103 can be reduced, and the smoothness of the first adhesive tape 101 can be improved.

[0203] In some embodiments, referring to FIG. 12, the first clamping portion 41a is configured to form a line contact with the back adhesive surface of the first adhesive material 103.

[0204] In some embodiments, the part of the first clamping portion 41a in contact with the first adhesive material 103 is configured in a cylindrical shape, so that the first clamping portion 41a forms a line contact with the back adhesive surface of the first adhesive material 103.

[0205] It should be understood that by configuring the first clamping portion 41a to form a line contact with the back adhesive surface of the first adhesive material 103, the first clamping portion 41a can contact multiple parts of the back adhesive surface of the first adhesive material 103 while applying a larger pressing force to the back adhesive surface of the first adhesive material 103, so that the first clamping portion 41a and the second clamping portion 41b can stably clamp the first adhesive material 103, reduce the probability of slipping between the first clamping portion 41a and the first adhesive material 103, and reduce the risk of damage to the back adhesive surface of the first adhesive material 103 due to excessive force.

[0206] In some embodiments, referring to FIGS. 11 and 13, the first adhesive applying mechanism 40 further comprises a second clamping member 43, which is arranged between the first adhesive supply mechanism 30 and the first cutting member 42, and is configured to clamp the part of the first adhesive material 103 close to the position cut off by the first cutting member 42.

[0207] In some embodiments, the second clamping member 43 can also be a jaw cylinder. The second clamping member 43 is arranged adjacent to the first cutting member 42, and the first cutting member 42 is relatively close to the first clamping member 41, and the second clamping member 43 is relatively far away from the first clamping member 41.

[0208] It should be understood that, after the first clamping member 41 pulls out the first adhesive material 103 by the first preset length and the first suction member 210 moves to the back adhesive surface of the first adhesive material 103 pulled out by the first preset length, the second clamping member 43 clamps the part of the first adhesive material 103 close to the position cut off by the first cutting member 42.

[0209] In this way, the two ends of the part of the first adhesive material 103 pulled out by the first preset length are kept in a tension state under the synchronous clamping action of the first clamping member 41 and the second clamping member 43, so that the first cutting member 42 can smoothly cut off the part of the first adhesive material 103 pulled out by the first preset length, and the risk that the part of the first adhesive material 103 pulled out by the first preset length is in a slack state and is difficult to be accurately cut off by the first cutting member 42 is reduced. Moreover, the first suction member 210 can suck the first adhesive material 103 in the tension state, the probability of wrinkles on the surface of the first adhesive material 103 is reduced, and the smoothness of the first suction member 210 in taking the first adhesive tape 101 is improved.

[0210] Moreover, it is not difficult to understand that, after the first cutting member 42 cuts off the first adhesive material 103 pulled out by the first preset length to obtain the first adhesive tape 101 of the first preset length, the second clamping member 43 still retains a part of the first adhesive material 103 between the second clamping member 43 and the position of the first adhesive material 103 cut off by the first cutting member 42. In this way, the part of the first adhesive material 103 can be clamped and pulled by the first clamping member 41 next time, so that the first clamping member 41 can pull out the first adhesive material 103 by the first preset length again, and the first suction member 210 can take the first adhesive tape 101 again.

[0211] In some embodiments, referring to FIG. 13, the second clamping member 43 includes a third clamping part 43a and a fourth clamping part 43b capable of relatively moving away from or close to each other. The third clamping part 43a is used to contact the back adhesive surface of the first adhesive material 103, and the fourth clamping part 43b is used to contact the adhesive surface of the first adhesive material 103. The part of the fourth clamping part 43b contacting the first adhesive material 103 is configured as a toothed structure.

[0212] In some embodiments, the first gluing mechanism 40 further comprises an eighth driving member 47 arranged on the frame 600 of the gluing device, and the third clamping portion 43a and the fourth clamping portion 43b are both positioning blocks arranged on the frame 600, and the third clamping portion 43a and the fourth clamping portion 43b are oppositely and spacedly arranged along a direction perpendicular to the first preset direction Y1 to form a gap for the first adhesive material 103 to pass through. The fourth clamping portion 43b is fixedly arranged on the frame 600, and the third clamping portion 43a is connected to the output end of the eighth driving member 47 to be moved by the eighth driving member 47 towards or away from the fourth clamping portion 43b.

[0213] Of course, in other embodiments, the third clamping portion 43a and the fourth clamping portion 43b can be directly arranged on the two clamping jaws of the clamping cylinder respectively, so as to be driven by the two clamping jaws of the clamping cylinder to move away from or close to each other.

[0214] The part of the fourth clamping portion 43b in contact with the first adhesive material 103 can comprise a plurality of spacedly arranged planar teeth to form a toothed structure.

[0215] It should be understood that when the first clamping member 41 pulls the first adhesive material 103 out of the first preset length, the third clamping portion 43a moves towards the fourth clamping portion 43b to stably clamp the part of the first adhesive material 103 close to the position cut off by the first cutting member 42 towards the fourth clamping portion 43b, so that the part of the first adhesive material 103 pulled out of the first preset length is kept in tension and cut off.

[0216] When the first cutting member 42 cuts off the first adhesive material 103 pulled out of the first preset length to obtain the first adhesive tape 101 of the first preset length, the third clamping portion 43a moves away from the fourth clamping portion 43b to release the clamping of the first adhesive material 103, so that the first clamping member 41 can pull the first adhesive material 103 again.

[0217] It is not difficult to understand that by configuring the part of the fourth clamping portion 43b in contact with the first adhesive material 103 as a toothed structure, the contact area of the fourth clamping portion 43b and the adhesive surface of the first adhesive material 103 can be reduced, the risk of the fourth clamping portion 43b and the first adhesive material 103 sticking together can be reduced, and the smoothness of the movement of the first adhesive material 103 along the second preset direction Y2 and the dispensing of the first adhesive tape 101 can be improved.

[0218] In some embodiments, referring to FIG. 13, the third clamping portion 43a is configured to form a surface contact with the back adhesive surface of the first adhesive material 103.

[0219] In some embodiments, the third clamping portion 43a is configured as a flat plate structure to form a surface contact with the back adhesive surface of the first adhesive material 103.

[0220] Thus, increasing the contact area between the third clamping portion 43a and the adhesive surface of the first adhesive material 103 can reduce the probability of slippage between the first adhesive material 103 and the third clamping portion 43a, and the two ends of the portion of the first adhesive material 103 pulled out by the first preset length can be kept in a tension state under the synchronous clamping action of the first clamping member 41 and the second clamping member 43, so that the first cutting member 42 can smoothly cut the portion of the first adhesive material 103 pulled out by the first preset length, and the risk of the portion of the first adhesive material 103 pulled out by the first preset length being in a relaxed state and being difficult to be accurately cut by the first cutting member 42 can be reduced.

[0221] In some embodiments of the present application, referring to FIGS. 14 and 15, the adhesive application device further comprises a second adhesive supply mechanism 50 and a second adhesive application mechanism 60.

[0222] The second adhesive supply mechanism 50 is configured to supply a second adhesive material 104. The second adhesive application mechanism 60 comprises a third clamping member 61 and a second cutting member 62. The third clamping member 61 is configured to clamp and drive the head of the second adhesive material 104 to move along a third preset direction Y3, so as to pull out the second adhesive material 104 by a second preset length. The second cutting member 62 is configured to cut the second adhesive material 104 pulled out by the second preset length, so as to obtain a second adhesive tape 102.

[0223] The second suction accessory 310 is configured to suck the second adhesive tape 102 when the second cutting member 62 cuts the second adhesive material 104.

[0224] The second adhesive supply mechanism 50 can have the same structure as the first adhesive supply mechanism 30, and will not be described here. Similarly, the second adhesive application mechanism 60 can have the same structure as the first adhesive application mechanism 40, and will not be described here.

[0225] Similarly, the second adhesive application mechanism 300 as a whole can be arranged on the output end of the seventh driving member 46, so as to be driven by the seventh driving member 46 to move in space, thereby driving the second suction accessory 310 to move in space. The seventh driving member 46 can be a three-axis moving platform or a multi-axis robot, so that the second adhesive application mechanism 300 and the second suction accessory 310 thereon have multiple degrees of freedom of movement. The seventh driving member 46 can be mounted on a rack 600 of the adhesive application device.

[0226] It can be understood that through the cooperation of the second adhesive supply mechanism 50 and the second adhesive application mechanism 60, the second adhesive tape 102 can be continuously supplied to the second suction accessory 310, so that the second suction accessory 310 can continuously stick the second adhesive tape 102 to the corresponding positions of the pole pieces 900 in the adhesive application station R1, thereby improving the adhesive application efficiency for batch pole pieces 900.

[0227] In some embodiments of the present application, referring to FIG. 14, FIG. 15 and FIG. 16, the adhesive taping device further comprises a rack 600, the first adhesive supply mechanism 30 and the second adhesive supply mechanism 50 are symmetrically arranged on the rack 600, and the first adhesive dispensing mechanism 40 and the second adhesive dispensing mechanism 60 are symmetrically arranged on the rack 600.

[0228] In some embodiments, referring to FIG. 15 and FIG. 16, the second preset direction Y2 and the third preset direction Y3 are the same straight direction. The first clamping member 41 on the first adhesive dispensing mechanism 40 and the third clamping member 61 on the second adhesive dispensing mechanism 60 are synchronously driven by the fifth driving member 44 to move in the same direction, so as to simultaneously pull out the first adhesive tape 101 and the second adhesive tape 102 by the corresponding preset length, so that the first cutting member 42 and the second cutting member 62 can simultaneously cut out the first adhesive tape 101 and the second adhesive tape 102, thereby improving the adhesive taping efficiency of the tab sheet 900.

[0229] It is not difficult to understand that by symmetrically arranging the first adhesive supply mechanism 30 and the second adhesive supply mechanism 50 on the rack 600, and symmetrically arranging the first adhesive dispensing mechanism 40 and the second adhesive dispensing mechanism 60 on the rack 600, the first adhesive tape 101 and the second adhesive tape 102 can be simultaneously supplied to the first suction member 210 and the second suction member 310, thereby improving the adhesive taping efficiency of the tab sheet 900.

[0230] In some embodiments, the present application also provides a battery production line, which comprises the adhesive taping device of any one of the above embodiments.

[0231] The battery production line of the present application, since being provided with the above adhesive taping device, also has the same technical effects as the above adhesive taping device, that is, by cooperating the conveying mechanism, the first adhesive taping mechanism and the second adhesive taping mechanism, the tab sheet with the adhesive tape is sequentially taped, so that each tab sheet with the adhesive tape can be directly conveyed to the lamination station by the conveying mechanism to be laminated, compared with the existing adhesive taping method of taping the continuous adhesive tape on the root of each tab ear at the edge of the tab sheet material belt, the action of winding and unwinding the tab sheet with the adhesive tape is saved, thereby solving the problem of the tab sheet with the adhesive tape relatively deviating from the tape running direction during the winding and unwinding process, and effectively improving the lamination quality of the tab sheet and the battery production quality.

[0232] Referring to FIG. 1 to FIG. 16, the present application provides an adhesive taping device and a battery production line.

[0233] The gluing device comprises a conveying mechanism 100 for carrying a plurality of pole pieces 900 with tabs 910 and conveying the plurality of pole pieces 900 one by one to a gluing station R1, the connecting part between the pole piece 900 and the tab 910 has opposite first and second surfaces 911 and 912 in the thickness direction Z thereof; a first gluing mechanism 200 comprising a first suction member 210 for suctioning a first adhesive tape 101, the first suction member 210 being movable towards the direction close to the gluing station R1 to paste the first adhesive tape 101 to the first surface 911; a second gluing mechanism 300 comprising a second suction member 310 for suctioning a second adhesive tape 102, the second suction member 310 being movable towards the direction close to the gluing station R1 to paste the second adhesive tape 102 to the second surface 912.

[0234] The gluing device and the battery production line of the embodiments of the present application are configured by the conveying mechanism, the first gluing mechanism and the second gluing mechanism, and glue is pasted on each of the plurality of pole pieces with tabs one by one, so that each of the pole pieces with the pasted adhesive tape can be directly conveyed by the conveying mechanism to a lamination station for lamination forming. Compared with the existing gluing method of pasting a continuous adhesive tape on each of the tab roots at the edge of the pole piece material tape, the action of winding and unwinding the pole piece with the pasted adhesive tape is omitted, thereby solving the problem of the pole piece with the pasted adhesive tape deviating from the tape running direction during the winding and unwinding process, and effectively improving the lamination forming quality of the pole piece and the battery production quality.

[0235] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0236] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A taping device, comprising: a conveying mechanism configured to carry a plurality of tabs each having a tab lug and to convey the plurality of tabs one by one to a taping station, the tabs having a connecting portion between the tab and the tab lug, the connecting portion having opposite first and second surfaces in a thickness direction of the connecting portion; a first taping mechanism including a first suction member configured to suction a first adhesive tape, the first suction member being movable toward the taping station to adhere the first adhesive tape to the first surface; a second taping mechanism including a second suction member configured to suction a second adhesive tape, the second suction member being movable toward the taping station to adhere the second adhesive tape to the second surface.

2. The taping device of claim 1, wherein, The second taping mechanism further includes a second support member, the second support member and the second suction member being alternately correspondable to the second surface in the thickness direction, and the second support member being movable toward the taping station to support the second surface when the first suction member adheres the first adhesive tape to the first surface. 3.The taping device according to claim 2, wherein the first taping mechanism further includes a first buffer structure connected to the first suction member, the first buffer structure being configured to apply a first elastic force to the first suction member when the first suction member adheres the first adhesive tape to the first surface; the second taping mechanism further includes a second buffer structure connected to the second suction member, the second buffer structure being configured to apply a second elastic force to the second suction member when the second suction member adheres the second adhesive tape to the second surface.

4. The taping device of claim 3, wherein, The first suction member is configured to support the first surface when the second suction member adheres the second adhesive tape to the second surface, and the first elastic force is greater than the second elastic force when the first suction member supports the first surface.

5. The taping device of any one of claims 3-4, wherein, The first taping mechanism further includes a first connecting member, the first buffer structure includes a first spring, and the first suction member is slidingly connected to the first connecting member, the first spring being clamped between the first connecting member and the first suction member. The second taping mechanism further includes a second connecting member, the second buffer structure includes a second spring, and the second suction member is slidingly connected to the second connecting member, the second spring being clamped between the second connecting member and the second suction member, the first spring having a wire diameter greater than a wire diameter of the second spring. 6.The taping device according to any one of claims 2 to 5, wherein the first taping mechanism further includes a first support member, the first support member and the first suction member being alternately correspondable to the first surface in the thickness direction, and the first support member being movable toward the taping station to support the first surface when the second suction member adheres the second adhesive tape to the second surface. 7.The taping device according to claim 6, wherein The first gluing mechanism further comprises a first driving member, an output end of the first driving member being connected to the first supporting member and the first suction accessory, so as to drive the first supporting member and the first suction accessory to rotate around a first axis, so that the first supporting member and the first suction accessory are alternately corresponding to the first surface in the thickness direction.

8. The gluing device according to any one of claims 2 to 7, wherein, The second gluing mechanism further comprises a second driving member, an output end of the second driving member being connected to the second supporting member and the second suction accessory, so as to drive the second supporting member and the second suction accessory to rotate around a second axis, so that the second supporting member and the second suction accessory are alternately corresponding to the second surface in the thickness direction.

9. The taping device of any one of claims 1 to 8, wherein, The gluing device further comprises: A first detection mechanism for acquiring position information of the pole piece in the space in the gluing station; A first deviation rectifying mechanism in driving connection with the first suction accessory, for adjusting the position of the first suction accessory in the space according to the position information acquired by the first detection mechanism, so that the first adhesive tape on the first suction accessory is directly opposite to the first surface.

10. The taping device of any one of claims 1 to 9, wherein, The gluing device further comprises: A second detection mechanism for acquiring position information of the pole piece in the space in the gluing station; A second deviation rectifying mechanism in driving connection with the second suction accessory, for adjusting the position of the second suction accessory in the space according to the position information acquired by the second detection mechanism, so that the second adhesive tape on the second suction accessory is directly opposite to the second surface.

11. The gluing device according to any one of claims 1 to 10, wherein, The gluing device further comprises: A pole piece feeding mechanism for unwinding and pulling the pole piece material belt to move along a first preset direction, the conveying mechanism being connected to the end of the pole piece feeding mechanism; A die-cutting mechanism arranged between the pole piece feeding mechanism and the conveying mechanism, for cutting the pole piece material belt into a plurality of pole pieces with tabs.

12. The taping device of any one of claims 1 to 11, wherein, The gluing device further comprises: A first adhesive material feeding mechanism for supplying a first adhesive material; A first adhesive material cutting mechanism comprising a first clamping member and a first cutting member, the first clamping member being used for clamping and driving the head of the first adhesive material to move along a second preset direction, so as to pull out the first adhesive material by a first preset length, and the first cutting member being used for cutting the first adhesive material pulled out by the first preset length, so as to obtain the first adhesive tape; Wherein, the first suction accessory can adsorb the first adhesive tape when the first cutting member cuts the first adhesive material.

13. The taping device of claim 12, wherein, The first clamping member comprises a first clamping part and a second clamping part capable of moving away from or close to each other, the first clamping part being used for contacting the back adhesive surface of the first adhesive material, and the second clamping part being used for contacting the adhesive surface of the first adhesive material, and the part of the second clamping part contacting the first adhesive material being configured as a toothed structure.

14. The taping device of claim 13, wherein, The first clamping part is used for forming linear contact with the back adhesive surface of the first adhesive material.

15. The taping device of any one of claims 12 to 14, wherein, The first glue-feeding mechanism further comprises a second clamping member arranged between the first glue-feeding mechanism and the first cutting member, and configured to clamp a part of the first glue material close to the position cut off by the first cutting member.

16. The taping device of claim 15, wherein, The second clamping member comprises a third clamping part and a fourth clamping part capable of moving away from or close to each other, the third clamping part is configured to contact the back glue surface of the first glue material, the fourth clamping part is configured to contact the glue surface of the first glue material, and the part of the fourth clamping part contacting the first glue material is configured as a toothed structure.

17. The taping device of claim 16, wherein, The third clamping part is configured to form a surface contact with the back glue surface of the first glue material.

18. The taping device of any one of claims 12 to 17, wherein, The glue-feeding device further comprises: a second glue-feeding mechanism configured to feed a second glue material; a second glue-feeding mechanism comprising a third clamping member and a second cutting member, the third clamping member is configured to clamp and drive the head of the second glue material to move along a third preset direction, so as to pull out the second glue material by a second preset length, and the second cutting member is configured to cut off the second glue material pulled out by the second preset length to obtain the second adhesive tape; wherein the second suction member is capable of adsorbing the second adhesive tape when the second cutting member cuts off the second glue material.

19. The glue-feeding device according to claim 18, wherein the glue-feeding device further comprises a rack, and the first glue-feeding mechanism and the second glue-feeding mechanism are symmetrically arranged on the rack; the first glue-feeding mechanism and the second glue-feeding mechanism are symmetrically arranged on the rack.

20. A battery production line comprising the glue-feeding device according to any one of claims 1 to 19.

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