Tape supply apparatus, tape application device, and battery production line

Abstract

The present application relates to a tape supply apparatus, a tape application device, and a battery production line. The tape supply apparatus comprises: a tape unwinding mechanism, configured to unwind a tape; a tape pulling mechanism, comprising a clamping member configured to clamp the tape and drive the tape to move in a first direction so as to pull out the tape to a preset length; and a tape cutting assembly, comprising a pressing member and a cutting member, the cutting member being located between the pressing member and the clamping member and being configured to cut the tape that has been pulled to the preset length so as to obtain a tape piece, and the pressing member being configured to press or release the part of the tape close to the position cut by the cutting member. The pressing member comprises a pressing portion and a supporting portion that can be relatively far away from or close to each other; the pressing portion is configured to be in contact with the backing surface of the tape; and the supporting portion is configured to be in contact with the adhesive surface of the tape, and the part of the supporting portion in contact with the adhesive surface is configured as a serrated structure. The tape supply apparatus of the present application can keep the part of the tape that has been pulled to the preset length in a tensioned state, thereby improving the smoothness of tape piece cutting.

Description

Glue supply device, glue sticking equipment and battery production line

[0001] Cross-reference to related applications

[0002] This application is based on Chinese Patent Application No. 202421909595.8 entitled "Glue supply device, glue sticking equipment and battery production line" filed on August 08, 2024, which is incorporated by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of batteries, in particular to a glue supply device, a glue sticking equipment and a battery production line. BACKGROUND

[0004] In the entire production process of a battery, one or more stations are involved in the operation of sticking glue to the battery, such as sticking glue to the corner of the pole piece and sticking glue to the lug of the pole piece to reduce the probability of contact short circuit between adjacent pole pieces; for example, directly sticking glue to the surface of the battery to protect the surface of the battery through the glue sheet.

[0005] In the battery glue sticking equipment, the adhesive tape is generally stored in the form of a roll, and before the battery is glued, the adhesive tape sent out on the roll needs to be cut to obtain a small piece of glue sheet for sticking to the corresponding part of the battery.

[0006] In related technologies, the cutting member is easy to stick to the adhesive tape during the cutting process of the adhesive tape sent out on the roll, which makes it difficult for the cutting member to cut the adhesive tape, affecting the smoothness of the glue sheet discharge.

[0007] SUMMARY

[0008] The present application aims to solve the problem that the cutting member on the current glue sticking equipment is easy to stick to the adhesive tape during the cutting process of the adhesive tape, which makes it difficult for the cutting member to cut the adhesive tape, affecting the smoothness of the glue sheet discharge. To this end, the present application provides a glue supply device, a glue sticking equipment and a battery production line.

[0009] In a first aspect, the present application provides a glue supply device, comprising:

[0010] A glue releasing mechanism for releasing the adhesive tape;

[0011] A glue pulling mechanism comprising a clamping member, the clamping member being used to clamp and drive the adhesive tape to move along a first direction to pull out a predetermined length of the adhesive tape;

[0012] A glue cutting assembly comprising a pressing member and a cutting member, the cutting member being located between the pressing member and the clamping member, the cutting member being used to cut the adhesive tape pulled out by a predetermined length, and the pressing member being used to press or release the part of the adhesive tape close to the cutting position of the cutting member;

[0013] The pressing part is configured to be in surface contact with the back adhesive surface of the adhesive tape.

[0014] The adhesive tape supply device has at least the following beneficial effects:

[0015] The adhesive tape supply device can keep the part of the adhesive tape that is pulled out by a preset length in a tensioned state, so that the cutting member can smoothly cut the part of the adhesive tape that is pulled out by a preset length, effectively reducing the difficulty of cutting the part of the adhesive tape that is pulled out by a preset length, reducing the probability of the cutting member being bonded with the adhesive tape, improving the smoothness of the adhesive film unloading, and further improving the efficiency of the adhesive tape application to the corresponding part of the battery, thereby improving the production efficiency of the battery.

[0016] In some embodiments, the pressing part is configured to be in surface contact with the back adhesive surface of the adhesive tape.

[0017] In this way, the contact area between the pressing part and the back adhesive surface of the adhesive tape is increased, the probability of relative sliding between the adhesive tape and the pressing part is reduced, and the two ends of the part of the adhesive tape that is pulled out by a preset length are kept in a tensioned state under the combined limiting action of the clamping member and the pressing part, so that the cutting member can smoothly cut the part of the adhesive tape that is pulled out by a preset length, and the risk of the part of the adhesive tape that is pulled out by a preset length being in a relaxed state and being difficult to be accurately cut by the cutting member is reduced.

[0018] In some embodiments, the pressing part is configured as a flat plate structure.

[0019] In this way, the pressing part is in surface contact with the back adhesive surface of the adhesive tape, the contact area between the pressing part and the back adhesive surface of the adhesive tape is increased, and the probability of relative sliding between the adhesive tape and the pressing part is reduced.

[0020] In some embodiments, the clamping member includes a first clamping part and a second clamping part that can be relatively away from or close to each other, the first clamping part is configured to be in surface contact with the back adhesive surface of the adhesive tape, the second clamping part is configured to be in surface contact with the adhesive surface of the adhesive tape, and the part of the second clamping part that is in surface contact with the adhesive surface of the adhesive tape is configured as a toothed structure.

[0021] In this way, the contact area between the second clamping part and the adhesive surface of the adhesive tape can be reduced, the risk of the second clamping part being bonded with the adhesive tape or the adhesive film is reduced, and the smoothness of the adhesive film unloading is further improved.

[0022] In some embodiments, the first clamping part is configured to form linear contact with the adhesive surface of the adhesive tape.

[0023] In this way, the first clamping part can contact multiple positions of the adhesive surface of the adhesive tape, and can apply a large pressing force to the adhesive surface of the adhesive tape. The first clamping part and the second clamping part can stably clamp the adhesive tape, reduce the probability of slippage between the adhesive tape and the first clamping part, and reduce the risk of damage to the adhesive surface of the adhesive tape due to excessive force.

[0024] In some embodiments, the tape pulling mechanism further comprises a first driving member and a detection assembly. The driving end of the first driving member is connected to the clamping member to drive the clamping member to move a preset length in the first direction. The detection assembly is configured to obtain position information of the clamping member. The first driving member can start or stop driving the clamping member according to the position information obtained by the detection assembly.

[0025] In this way, the clamping member can accurately pull out the adhesive tape by a preset length, so that the cutting member can cut out an adhesive piece of a preset length from the adhesive tape, thereby improving the accuracy of the adhesive piece.

[0026] In some embodiments, the adhesive supply device further comprises a tape taking member. The tape taking member is configured to abut and adsorb the adhesive surface of the cut part of the adhesive tape when the cutting member cuts the adhesive tape.

[0027] In this way, the flatness of the adhesive tape pulled out by a preset length can be improved, the probability of wrinkles in the adhesive tape pulled out by a preset length can be reduced, and the smoothness of the adhesive piece and the taking of the adhesive piece by the tape taking member can be improved.

[0028] In some embodiments, the adhesive supply device further comprises a rack. The adhesive placing mechanism, the tape pulling mechanism, and the adhesive cutting assembly each comprise two.

[0029] The two adhesive placing mechanisms are symmetrically arranged on the rack, the two adhesive cutting assemblies are symmetrically arranged on the rack, and the two clamping members in the two tape pulling mechanisms can move synchronously in the first direction.

[0030] In this way, two adhesive tapes can be pulled out by a preset length at the same time, so that two adhesive pieces can be cut out by the two cutting members on the two adhesive cutting assemblies at the same time, thereby improving the efficiency of cutting out multiple adhesive pieces and improving the efficiency of gluing multiple parts on the battery.

[0031] In a second aspect, the present application provides an adhesive application device, which comprises the adhesive supply device described above.

[0032] According to the adhesive application device of the second aspect of the present application, at least the following beneficial effects can be achieved:

[0033] The adhesive application equipment has the same technical effects as the glue supply device, that is, through the cooperation of the glue releasing mechanism, the glue pulling mechanism and the glue cutting assembly, the clamping piece of the glue pulling mechanism and the pressing piece of the glue cutting assembly respectively clamp and press the adhesive tape, the part of the adhesive tape pulled out to the preset length is kept in tension, the adhesive tape pulled out to the preset length is smoothly cut by the cutting piece, the difficulty of cutting the adhesive tape pulled out to the preset length by the cutting piece is effectively reduced, the probability of the cutting piece being bonded with the adhesive tape is reduced, the smoothness of the adhesive film unloading is improved, and the efficiency of the adhesive application to the corresponding part of the battery is improved, and the production efficiency of the battery is also improved.

[0034] In a third aspect, the application provides a battery production line, which comprises the glue supply device and / or the adhesive application equipment.

[0035] The battery production line has the same technical effects as the glue supply device and / or the adhesive application equipment, that is, through the cooperation of the glue releasing mechanism, the glue pulling mechanism and the glue cutting assembly, the clamping piece of the glue pulling mechanism and the pressing piece of the glue cutting assembly respectively clamp and press the adhesive tape, the part of the adhesive tape pulled out to the preset length is kept in tension, the adhesive tape pulled out to the preset length is smoothly cut by the cutting piece, the difficulty of cutting the adhesive tape pulled out to the preset length by the cutting piece is effectively reduced, the probability of the cutting piece being bonded with the adhesive tape is reduced, the smoothness of the adhesive film unloading is improved, and the efficiency of the adhesive application to the corresponding part of the battery is improved, and the production efficiency of the battery is also improved.

[0036] The battery production line has the same technical effects as the glue supply device and / or the adhesive application equipment, that is, through the cooperation of the glue releasing mechanism, the glue pulling mechanism and the glue cutting assembly, the clamping piece of the glue pulling mechanism and the pressing piece of the glue cutting assembly respectively clamp and press the adhesive tape, the part of the adhesive tape pulled out to the preset length is kept in tension, the adhesive tape pulled out to the preset length is smoothly cut by the cutting piece, the difficulty of cutting the adhesive tape pulled out to the preset length by the cutting piece is effectively reduced, the probability of the cutting piece being bonded with the adhesive tape is reduced, the smoothness of the adhesive film unloading is improved, and the efficiency of the adhesive application to the corresponding part of the battery is improved, and the production efficiency of the battery is also improved.

[0037] The above description is only a summary of the technical solutions of the application. In order to more clearly understand the technical means of the application, the specific embodiments of the 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 application more obvious and easy to understand, the following will specifically describe the embodiments of the application. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments of the application. Obviously, the drawings described below are only some embodiments of the application, and those skilled in the art can also obtain other drawings according to the drawings without creating any creative labor. In the drawings:

[0039] Fig. 1 is a structural schematic view of the glue supply device of the embodiment of the application.

[0040] Fig. 2 is an enlarged view of A in Fig. 1.

[0041] Fig. 3 is an enlarged view of B in Fig. 1.

[0042] Fig. 4 is a structural schematic view of a glue pulling mechanism according to an embodiment of the present application.

[0043] Fig. 5 is another structural schematic view of a glue supplying device according to an embodiment of the present application.

[0044] Fig. 6 is an enlarged view of C in Fig. 5.

[0045] Fig. 7 is another structural schematic view of a glue pulling mechanism according to an embodiment of the present application.

[0046] Legend: glue dispensing mechanism 100; glue pulling mechanism 200; clamping member 210; first clamping portion 211; second clamping portion 212; first driving member 220; detection assembly 230; sensor 231; inductive sheet 232; glue cutting assembly 300; pressing member 310; pressing portion 311; supporting portion 312; cutting member 320; second driving member 330; third driving member 340; glue taking member 400; frame 500; fourth driving member 600; adhesive tape 700; back adhesive surface 710; adhesive surface 720; first direction X; second direction Y. DETAILED DESCRIPTION

[0047] 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 some of the embodiments of the present application, but not all the embodiments of the present application. 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.

[0048] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and are not intended to 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 present application.

[0049] 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 indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. 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 the present application can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "below" the second feature and the like, it can mean 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" the second feature can be directly above or obliquely above the second feature, or only indicate that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only indicate that the first feature is lower than the second feature in horizontal height.

[0052] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration, and do not represent the only implementation.

[0053] At present, from the development of market situation, the application of battery is more and more widely. The battery is not only applied to the energy storage power supply system of water power, fire power, wind power and solar power station, but also widely used in 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.

[0054] The battery is composed of one or more battery monomers. For each battery, the plurality of battery monomers that constitute it can be connected in series or in parallel or in a mixed connection. Among them, the mixed connection means that there are both series and parallel connections among the plurality of battery monomers.

[0055] The battery monomer is the smallest unit that constitutes the battery. In the structure of the battery monomer, the shell, the electrolyte and the electrode assembly are included. The electrode assembly is the component where the electrochemical reaction occurs in the battery monomer. The electrode assembly includes the positive electrode sheet, the negative electrode sheet and the separator. The shell can include one or more electrode assemblies. The electrode assembly is mainly formed by winding or stacking the positive electrode sheet and the negative electrode sheet, and the separator is usually arranged between the positive electrode sheet and the negative electrode sheet.

[0056] The shell is a structure with one end open and hollow inside. The electrode assembly is arranged inside the shell, and the end cover is arranged at the opening of the shell. The end cover is closed to form the internal environment of the battery monomer at the opening. Of course, the end cover and the shell can also be integrated. In some embodiments, the end cover and the shell can form a common connecting surface before other components enter the shell. When it is necessary to seal the inside of the shell, the end cover is closed to the shell. The shell can be of various shapes and sizes, such as a rectangular parallelepiped, a cylinder, a hexagonal prism, etc. In some embodiments, the shape of the shell can be determined according to the specific shape and size of the electrode assembly. The material of the shell can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. The embodiments of the present application do not make special restrictions thereon.

[0057] During the entire production process of the battery, one or more stations are involved in the process of pasting glue on the battery, such as pasting glue on the corner of the electrode sheet and pasting glue on the tab of the electrode sheet, so as to reduce the probability of short circuit of adjacent electrode sheets; for example, directly pasting glue on the surface of the battery to protect the surface of the battery by the glue sheet.

[0058] In the battery gluing equipment, the adhesive tape is generally stored in the form of a roll. Before the battery is glued, the adhesive tape sent out on the roll needs to be cut to obtain a small piece of glue sheet for pasting to the corresponding part of the battery.

[0059] In the related art, the cutting member is easy to be bonded with the adhesive tape during the cutting process of the adhesive tape sent out on the roll, which causes the cutting member to be difficult to cut the adhesive tape, affecting the smoothness of the glue sheet discharge.

[0060] Based on this, in order to solve the problem that the cutting member is easy to be bonded with the adhesive tape during the cutting process, and it is difficult to cut the adhesive tape, and the smoothness of the film is affected, one or more embodiments of the present application provide a glue supply device. Through the cooperation of the glue releasing mechanism, the glue pulling mechanism and the glue cutting assembly, the clamping of the glue pulling mechanism and the pressing of the glue cutting assembly can keep the part of the adhesive tape pulled out of the preset length in a tension state, so that the cutting member can cut the adhesive tape pulled out of the preset length smoothly, effectively reduce the difficulty of cutting the adhesive tape pulled out of the preset length, reduce the probability of the cutting member being bonded with the adhesive tape, improve the smoothness of the film, and then improve the efficiency of the battery corresponding part gluing, and the production efficiency of the battery is also improved.

[0061] Referring to FIGS. 1, 2 and 3, the present application provides a glue supply device, which comprises a glue releasing mechanism 100, a glue pulling mechanism 200 and a glue cutting assembly 300.

[0062] The glue releasing mechanism 100 is used to release the adhesive tape 700. The glue pulling mechanism 200 comprises a clamping piece 210, which is used to clamp and drive the adhesive tape 700 to move along the first direction X, so as to pull out the adhesive tape 700 by a preset length.

[0063] The glue cutting assembly 300 comprises a pressing piece 310 and a cutting member 320. The cutting member 320 is located between the pressing piece 310 and the clamping piece 210, and is used to cut the adhesive tape 700 pulled out by the preset length to obtain a film. The pressing piece 310 is used to press or release the part of the adhesive tape 700 close to the cutting position of the cutting member 320.

[0064] It should be noted that in the present application, the glue releasing mechanism 100 can be a single unwinding roller or a combination structure of a single unwinding roller and multiple tensioning rollers, which is used to store the adhesive tape in a roll state and discharge the adhesive tape 700 in a sheet state.

[0065] The power of the glue releasing mechanism 100 to release the adhesive tape 700 can be the rotation driving force of itself, or the traction force of the clamping piece 210 to the adhesive tape 700. For example, the power of the glue releasing mechanism 100 to release the adhesive tape 700 is the traction force of the clamping piece 210 to the adhesive tape 700, so that the clamping piece 210 can accurately pull out the adhesive tape 700 by a preset length.

[0066] In the present application, the adhesive tape 700 can be a conventional 3M adhesive tape, a release adhesive tape or other insulating adhesive tape. The opposite two surfaces of the adhesive tape 700 in the thickness direction are respectively a back adhesive surface 710 and a bonding surface 720. It is easy to understand that the back adhesive surface 710 has no adhesion, and the bonding surface 720 has adhesion.

[0067] Referring to FIG. 4, in the tape pulling mechanism 200, the clamping member 210 can be a jaw cylinder. After clamping the tape 700, the clamping member 210 can be driven to move in the first direction X by the first driving member 220, so that the clamping member 210 clamps and drives the tape 700 to move in the first direction X, to pull out the tape 700 by a preset length.

[0068] The part clamped by the clamping member 210 on the tape 700 can be the end of the tape 700, that is, the unwinding end of the tape 700. The preset length corresponds to the length of a single piece of tape, which is not limited in particular and can be set according to the actual length of the tape applied to the corresponding part of the battery.

[0069] The first driving member 220 can be a cylinder, a hydraulic cylinder, an electric push rod, etc., or can be in the form of a motor and a transmission assembly. Exemplarily, the first driving member 220 is a driving structure of a motor and a gear rack. The first driving member 220 can be installed on the rack 500 of the tape supply device.

[0070] In the tape cutting assembly 300, the pressing member 310 can include a pressing part 311 and a supporting part 312 oppositely arranged on the rack 500 of the tape supply device, and a tape passing channel for the tape 700 to pass through is formed between the pressing part 311 and the supporting part 312, and the extension direction of the tape passing channel corresponds to the first direction X. The pressing part 311 can move towards or away from the supporting part 312, to press or release the part of the tape 700 close to the cut-off part of the cutting member 320 to the supporting part 312.

[0071] Of course, in other embodiments, the pressing member 310 can also be a jaw cylinder, which can clamp or release the part of the tape 700 close to the cut-off part of the cutting member 320, to form the pressing or releasing of the part.

[0072] In some embodiments, in the tape cutting assembly 300, the cutting member 320 can be a cutter, and the cutting member 320 can be driven to move in a second direction Y intersecting the first direction X by the second driving member 330, to cut off the tape 700 pulled out by the preset length, to obtain a single piece of tape. Exemplarily, the second direction Y and the first direction X are perpendicular to each other.

[0073] The second driving member 330 can be installed on the rack 500 of the tape supply device. The second driving member 330 can be a cylinder, a hydraulic cylinder, an electric push rod, etc., or can be in the form of a motor and a transmission assembly. The cutting member 320 can cut into the tape 700 along the tape preparation surface 710 of the tape 700 to the adhesive surface 720 of the tape 700, so as to cut off the tape 700, which can reduce the probability of the cutting member 320 being bonded with the tape 700, reduce the difficulty of the cutting member 320 cutting off the tape 700, and improve the smoothness of the tape blanking.

[0074] It can be understood that the glue supplying device of the embodiment of the application continuously supplies the glue sheet as follows:

[0075] The clamping piece 210 of the glue pulling mechanism 200 clamps and pulls the adhesive tape 700 along the first direction X. When the clamping piece 210 pulls the adhesive tape 700 out by a preset length, the pressing piece 310 presses the part of the adhesive tape 700 close to the cutting position of the cutting piece 320, so that the part of the adhesive tape 700 pulled out by the preset length is kept in tension under the combined limiting action of the clamping piece 210 and the pressing piece 310. Then, the cutting piece 320 moves towards the part of the adhesive tape 700 pulled out by the preset length, so that the part of the adhesive tape 700 pulled out by the preset length is smoothly cut off, and a single piece of the adhesive tape is obtained.

[0076] In this way, the risk that the part of the adhesive tape 700 pulled out by the preset length is in a relaxed state and is difficult to be accurately cut off by the cutting piece 320 is reduced, the difficulty of cutting off the adhesive tape 700 pulled out by the preset length by the cutting piece 320 is reduced, the probability of the cutting piece 320 being bonded with the adhesive tape is reduced, and the smoothness of the adhesive tape cutting is improved.

[0077] In addition, it should be noted that after the cutting piece 320 cuts off the adhesive tape 700 pulled out by the preset length by the clamping piece 210 to obtain a single piece of the adhesive tape, the pressing piece 310 still retains a part of the adhesive tape 700 between the cutting position of the cutting piece 320 and the adhesive tape 700. This part of the adhesive tape 700 can be clamped and pulled by the clamping piece 210 next time, so that the clamping piece 210 pulls out the adhesive tape 700 by the preset length again to cut off the next piece of the adhesive tape.

[0078] The clamping piece 210 on the glue pulling mechanism 200 and the cutting piece 320 and the pressing piece 310 on the glue cutting assembly 300 repeat the above-mentioned actions, so that the adhesive tape to be bonded to the corresponding part of the battery can be continuously supplied, the efficiency of bonding the adhesive tape to the corresponding part of the battery is improved, and the production efficiency of the battery is also improved.

[0079] It can be understood that the glue supplying device of the embodiment of the application, through the cooperation of the glue placing mechanism 100, the glue pulling mechanism 200 and the glue cutting assembly 300, and by the clamping and pressing actions of the clamping piece 210 of the glue pulling mechanism 200 and the pressing piece 310 of the glue cutting assembly 300 on the adhesive tape 700, the part of the adhesive tape 700 pulled out by the preset length can be kept in tension, so that the cutting piece 320 can smoothly cut off the adhesive tape 700 pulled out by the preset length, the difficulty of cutting off the adhesive tape 700 pulled out by the preset length by the cutting piece 320 is reduced, the probability of the cutting piece 320 being bonded with the adhesive tape is reduced, the smoothness of the adhesive tape cutting is improved, the efficiency of bonding the adhesive tape to the corresponding part of the battery is improved, and the production efficiency of the battery is also improved.

[0080] Moreover, the cooperation of the glue releasing mechanism 100, the glue pulling mechanism 200 and the glue cutting assembly 300 can continuously cut the adhesive tape 700 into a plurality of adhesive pieces to be pasted on the battery corresponding parts, improve the continuity of the plurality of adhesive pieces, and further improve the efficiency of pasting the adhesive pieces on the battery corresponding parts, and also improve the production efficiency of the battery.

[0081] In some embodiments of the present application, referring to FIG. 2, the pressing part 311 is used to contact the back adhesive surface 710 of the adhesive tape 700, and the supporting part 312 is used to contact the adhesive surface 720 of the adhesive tape 700, and the part of the supporting part 312 contacting the adhesive surface 720 is configured as a toothed structure.

[0082] In some embodiments, the glue cutting assembly 300 further comprises a third driving member 340, and the pressing part 311 and the supporting part 312 are both positioning blocks arranged on the rack 500 and are spaced apart and distributed along a direction perpendicular to the first direction X to form a glue passing channel for the adhesive tape 700.

[0083] The supporting part 312 is fixedly installed on the rack 500, and the pressing part 311 is connected to the output end of the third driving member 340 to be driven by the third driving member 340 to move towards or away from the supporting part 312 to press or release the part of the adhesive tape 700 close to the cut part of the cutting member 320.

[0084] It should be understood that when the clamping member 210 pulls out the adhesive tape 700 by a preset length, the pressing part 311 moves towards the supporting part 312 to stably press the part of the adhesive tape 700 close to the cut part of the cutting member 320, so that the part of the adhesive tape 700 pulled out by the preset length is kept in tension and cut by the cutting member 320.

[0085] When the cutting member 320 cuts the adhesive tape 700 pulled out by the preset length to obtain an adhesive piece of the preset length, the pressing part 311 moves away from the supporting part 312 to be separated from the adhesive tape 700 and release the pressing of the adhesive tape 700, so that the clamping member 210 can pull the end of the adhesive tape 700 again.

[0086] The part of the supporting part 312 contacting the adhesive surface 720 can comprise a plurality of spaced apart planar teeth to form a toothed structure.

[0087] It is not difficult to understand that by configuring the part of the supporting part 312 contacting the adhesive tape 700 as a toothed structure, the contact area of the supporting part 312 and the adhesive surface of the adhesive tape 700 can be reduced, the probability of the supporting part 312 and the adhesive tape 700 being bonded together can be reduced, and the smoothness of the movement of the adhesive tape 700 along the first direction X and the dispensing of the adhesive pieces can be improved.

[0088] In some embodiments, referring to FIG. 1 and FIG. 2, the pressing part 311 is configured to form a surface contact with the adhesive surface 710 of the adhesive tape 700.

[0089] In some embodiments, the pressing part 311 is configured as a flat plate structure to form a surface contact with the adhesive surface of the adhesive tape 700.

[0090] In this way, the contact area between the pressing part 311 and the adhesive surface of the adhesive tape 700 is increased, which reduces the probability of relative sliding between the adhesive tape 700 and the pressing part 311, and keeps the part of the adhesive tape 700 that has been pulled out by a preset length in a tension state under the combined limiting action of the clamping part 210 and the pressing part 310, so that the cutting part 320 can smoothly cut the part of the adhesive tape 700 that has been pulled out by a preset length, and reduces the risk that the part of the adhesive tape 700 that has been pulled out by a preset length is in a relaxed state and is difficult to be accurately cut by the cutting part 320.

[0091] In some embodiments of the present application, referring to FIG. 1 and FIG. 3, the clamping part 210 includes a first clamping part 211 and a second clamping part 212 that can move away from or close to each other, the first clamping part 211 is configured to contact the adhesive surface 710 of the adhesive tape 700, the second clamping part 212 is configured to contact the bonding surface 720 of the adhesive tape 700, and the part of the second clamping part 212 that contacts the bonding surface 720 is configured as a toothed structure.

[0092] In some embodiments, the first clamping part 211 and the second clamping part 212 can be respectively arranged on the two clamping jaws of the clamping cylinder, so that the two clamping jaws of the clamping cylinder drive the first clamping part 211 and the second clamping part 212 to move away from or close to each other.

[0093] The part of the second clamping part 212 that contacts the adhesive tape 700 can include a plurality of spaced flat teeth to form a toothed structure.

[0094] It should be understood that when the clamping part 210 needs to clamp the end of the adhesive tape 700 output by the adhesive tape output mechanism 100, the first clamping part 211 and the second clamping part 212 move towards each other, so that the first clamping part 211 abuts against the adhesive surface of the end of the adhesive tape 700, and the second clamping part 212 abuts against the bonding surface of the end of the adhesive tape 700, thereby achieving clamping of the end of the adhesive tape 700.

[0095] Then, the pressing part 310 presses the part of the adhesive tape 700 close to the cutting position of the cutting part 320, so that the part of the adhesive tape 700 that has been pulled out by a preset length is kept in a tension state under the combined limiting action of the clamping part 210 and the pressing part 310, so that the cutting part 320 can smoothly cut the adhesive tape 700.

[0096] When the cutting piece 320 is pulled out to cut the adhesive tape 700 to obtain the adhesive tape of the preset length, the first clamping part 211 and the second clamping part 212 move away from each other to release the clamping of the adhesive tape, so as to release the adhesive tape.

[0097] It can be understood that, by configuring the part of the second clamping part 212 in contact with the adhesive tape 700 as a toothed structure, the contact area of the second clamping part 212 and the adhesive surface of the adhesive tape 700 can be reduced, the risk of the second clamping part 212 and the adhesive tape 700 or the adhesive tape being bonded together can be reduced, and the smoothness of the release of the adhesive tape can be further improved.

[0098] In some embodiments, referring to FIG. 3, the first clamping part 211 is configured to form linear contact with the back adhesive surface 710 of the adhesive tape 700.

[0099] In some embodiments, the part of the first clamping part 211 in contact with the adhesive tape 700 is configured as a cylindrical shape, so that the first clamping part 211 forms linear contact with the back adhesive surface of the adhesive tape 700.

[0100] It should be understood that, by making the first clamping part 211 form linear contact with the back adhesive surface of the adhesive tape 700, the first clamping part 211 can contact multiple parts of the back adhesive surface of the adhesive tape 700 while applying a relatively large pressing force to the back adhesive surface of the adhesive tape 700, so that the first clamping part 211 and the second clamping part 212 can stably clamp the end of the adhesive tape 700, reduce the probability of slippage between the adhesive tape 700 and the first clamping part 211, and reduce the risk of damage to the back adhesive surface of the adhesive tape 700 due to excessive force.

[0101] In the embodiments of the present application, referring to FIGS. 3 and 4, the adhesive tape pulling mechanism 200 further comprises a first driving part 220 and a detection assembly 230. The driving end of the first driving part 220 is connected to the clamping part 210 to drive the clamping part 210 to move in the first direction X by a preset length. The detection assembly 230 is configured to obtain position information of the clamping part 210. The first driving part 220 can start or stop driving the clamping part 210 according to the position information obtained by the detection assembly 230.

[0102] In some embodiments, the first driving part 220 is integrally installed on the rack 500. The first driving part 220 can be a pneumatic cylinder, a hydraulic cylinder, an electric push rod, or the like, or can be in the form of a motor and a transmission assembly. Exemplarily, the first driving part 220 is a driving structure in the form of a motor and a gear rack.

[0103] The detection assembly 230 comprises at least two sensors 231 arranged on the frame 500 and a sensing sheet 232 arranged on the clamping member 210. The sensors 231 are arranged at intervals on the moving path of the clamping member 210, so as to be inductively matched with the sensing sheet 232 on the clamping member 210, so as to obtain the position information of the clamping member 210.

[0104] The sensors 231 can be configured as photoelectric sensors, and the sensing sheet 232 is inductively matched with the light path of the photoelectric sensors, so as to obtain the position information of the clamping member 210.

[0105] It should be noted that when the clamping member 210 is in the initial position, the sensing sheet 232 on the clamping member 210 is inductively matched with one of the sensors 231, so that the initial position of the clamping member 210 is located. When the clamping member 210 is driven by the first driving member 220 to move to the end of the adhesive tape 700, the sensing sheet 232 on the clamping member 210 is inductively matched with another sensor 231, so that the clamping position of the clamping member 210 is located.

[0106] It is easy to understand that the distance between the initial position of the clamping member 210 and the clamping position of the clamping member 210 is equal to the preset length of the clamping member 210 moving along the first direction X or in the direction opposite to the first direction X.

[0107] When the sensor 231 and the sensing sheet 232 cooperate to locate the clamping member 210 at the clamping position, it indicates that the clamping member 210 has clamped the end of the adhesive tape 700. At this time, the first driving member 220 starts to drive the clamping member 210 to pull the end of the adhesive tape 700 to move a preset length along the first direction X, and then the first driving member 220 stops driving the clamping member 210.

[0108] In this way, through the cooperation of the first driving member 220 and the detection assembly 230, the clamping member 210 can accurately pull out the adhesive tape 700 by a preset length, so that the cutting member 320 cuts the adhesive tape 700 to obtain an adhesive sheet with a preset length, and the accuracy of the adhesive sheet cutting is improved.

[0109] In the embodiment of the present application, referring to FIG. 1, the adhesive tape feeding device further comprises a glue taking member 400, which is used for abutting and adsorbing the back glue surface of the cut part of the adhesive tape 700 when the cutting member 320 cuts the adhesive tape 700.

[0110] In some embodiments, the glue supplying device further comprises a fourth driving member 600 mounted on the rack 500, and the glue taking member 400 is connected to the driving end of the fourth driving member 600 to be driven to move in space by the fourth driving member 600. The fourth driving member 600 can be a multi-axis moving platform or a multi-axis manipulator, so that the glue taking member 400 has multiple degrees of freedom of movement. The part cut off on the adhesive tape 700 is the adhesive tape piece of the preset length cut off from the adhesive tape 700.

[0111] The glue taking member 400 is configured in a block structure and is formed with an adsorption surface. The glue taking member 400 can be connected to a vacuum generator, so that the adsorption surface of the glue taking member 400 has the function of stably adsorbing or releasing the adhesive tape piece.

[0112] It should be noted that after the clamping member 210 pulls out the adhesive tape 700 by the preset length, the pressing member 310 presses the part on the adhesive tape 700 close to the cut-off part of the cutting member 320, so that the part of the adhesive tape 700 pulled out by the preset length is kept in a tension state under the combined limiting action of the clamping member 210 and the pressing member 310. Then, the glue taking member 400 moves to the back adhesive surface of the adhesive tape 700 pulled out by the preset length and stably adsorbs it. At this time, the cutting member 320 moves towards the adhesive tape 700 pulled out by the preset length, so as to smoothly cut off the adhesive tape 700 pulled out by the preset length, and obtain the single adhesive tape piece of the preset length. After the clamping member 210 releases the clamping of the adhesive tape piece, the glue taking member 400 stably adsorbs the single adhesive tape piece. In this way, the stable taking of the adhesive tape piece is realized, so as to drive the adhesive tape piece to the corresponding gluing station for gluing operation.

[0113] It can be understood that through the coordinated action of the clamping member 210, the pressing member 310, the cutting member 320 and the glue taking member 400, the glue taking member 400 can also abut and adsorb the adhesive tape 700 in the tension state, which can improve the flatness of the adhesive tape 700 pulled out by the preset length, reduce the probability of wrinkles of the adhesive tape 700 pulled out by the preset length, and improve the smoothness of the discharging of the single adhesive tape piece and the taking of the single adhesive tape piece by the glue taking member 400.

[0114] It should be noted that in the whole production process of the battery, there are situations of gluing multiple parts on the battery, such as gluing the opposite surfaces of the tabs of the pole piece to reduce the probability of contact short circuit between adjacent pole pieces and tabs.

[0115] Based on this, in some embodiments of the present application, referring to FIGS. 5, 6 and 7, the glue supplying device further comprises a rack 500, and the glue placing mechanism 100, the glue pulling mechanism 200 and the glue cutting assembly 300 each comprise two. The two glue placing mechanisms 100 are symmetrically arranged on the rack 500, the two glue cutting assemblies 300 are symmetrically arranged on the rack 500, and the two clamping members 210 in the two glue pulling mechanisms 200 can move synchronously along the first direction X.

[0116] In some embodiments, the two glue dispensing mechanisms 100 are symmetrically distributed relative to the first direction X, and the two glue cutting assemblies 300 are symmetrically distributed relative to the first direction X as well.

[0117] The two clamping pieces 210 in the two glue pulling mechanisms 200 are symmetrically distributed relative to the first direction X as well, and are driven by the first driving piece 220 to move synchronously in the same direction.

[0118] In this way, two pieces of glue tape 700 can be pulled out by a preset length at the same time, so that the two cutting pieces 320 on the two glue cutting assemblies 300 can cut out two pieces of glue at the same time, thereby improving the discharging efficiency of multiple pieces of glue, and further improving the work efficiency of gluing multiple parts on the battery.

[0119] In addition, the application also provides a gluing device, which comprises the glue feeding device of any of the above embodiments.

[0120] In some embodiments, the gluing device further comprises a glue taking piece 400, which is used to abut and adsorb the back glue surface of the cut part of the glue tape 700 when the cutting piece 320 cuts off the glue tape 700, and the cut part of the glue tape 700 is the glue piece cut from the glue tape 700. The glue taking piece 400 can adsorb and stick the glue piece to the place to be glued on the battery.

[0121] It should be noted that after the clamping piece 210 pulls out the glue tape 700 by a preset length, the pressing piece 310 presses the part of the glue tape 700 close to the cut part of the cutting piece 320, so that the part of the glue tape 700 pulled out by the preset length is kept in a tension state under the combined limiting action of the clamping piece 210 and the pressing piece 310. Then, the glue taking piece 400 moves to the back glue surface of the glue tape 700 pulled out by the preset length and stably adsorbs it. At this time, the cutting piece 320 moves towards the glue tape 700 pulled out by the preset length, thereby smoothly cutting off the glue tape 700 pulled out by the preset length to obtain a single piece of glue with a preset length. After the clamping piece 210 releases the clamping of the glue piece, the glue taking piece 400 stably adsorbs the single piece of glue, so that the stable taking of the glue piece is realized, so that the glue taking piece 400 can stick the glue piece to the place to be glued on the battery.

[0122] It is not difficult to understand that the gluing device of the embodiment of the application has the same technical effects brought by the glue supply device, that is, through the cooperation of the glue releasing mechanism 100, the glue pulling mechanism 200 and the glue cutting assembly 300, and by the clamping and pressing of the clamping piece 210 of the glue pulling mechanism 200 and the pressing piece 310 of the glue cutting assembly 300, the part of the adhesive tape 700 pulled out by the preset length can be kept in tension, so that the adhesive tape 700 pulled out by the preset length can be smoothly cut off by the cutting piece 320, effectively reducing the difficulty of cutting the adhesive tape 700 pulled out by the preset length by the cutting piece 320, reducing the probability of the cutting piece 320 and the adhesive tape being bonded together, improving the smoothness of the film unloading, and further improving the efficiency of gluing the corresponding part of the battery, and correspondingly improving the production efficiency of the battery.

[0123] In some embodiments, the embodiment of the application also provides a battery production line, which comprises the glue supply device and / or the gluing device of any of the above embodiments.

[0124] It is not difficult to understand that the battery production line of the embodiment of the application has the same technical effects brought by the glue supply device and / or the gluing device, that is, through the cooperation of the glue releasing mechanism 100, the glue pulling mechanism 200 and the glue cutting assembly 300, and by the clamping and pressing of the clamping piece 210 of the glue pulling mechanism 200 and the pressing piece 310 of the glue cutting assembly 300, the part of the adhesive tape 700 pulled out by the preset length can be kept in tension, so that the adhesive tape 700 pulled out by the preset length can be smoothly cut off by the cutting piece 320, effectively reducing the difficulty of cutting the adhesive tape 700 pulled out by the preset length by the cutting piece 320, reducing the probability of the cutting piece 320 and the adhesive tape being bonded together, improving the smoothness of the film unloading, and further improving the efficiency of gluing the corresponding part of the battery, and correspondingly improving the production efficiency of the battery.

[0125] Referring to FIGS. 1-7, in some embodiments of the application, a glue supply device, a gluing device and a battery production line are provided.

[0126] The glue supply device comprises: a glue releasing mechanism 100 for unwinding the adhesive tape 700; a glue pulling mechanism 200 comprising a clamping piece 210, the clamping piece 210 being used to clamp and drive the adhesive tape 700 to move in a first direction X, so as to pull out the adhesive tape 700 by a preset length; a glue cutting assembly 300 comprising a pressing piece 310 and a cutting piece 320, the cutting piece 320 being located between the pressing piece 310 and the clamping piece 210, the cutting piece 320 being used to cut the adhesive tape 700 pulled out by the preset length to obtain a film, and the pressing piece 310 being used to press or release the part of the adhesive tape 700 close to the cutting position of the cutting piece 320.

[0127] The gluing device comprises the glue supply device. The battery production line comprises the glue supply device and / or the gluing device.

[0128] The glue supply device, the gluing device and the battery production line of the embodiments of the present application can keep the part of the adhesive tape 700 that is pulled out by a preset length in a tensioned state through the cooperation of the glue releasing mechanism 100, the glue pulling mechanism 200 and the glue cutting assembly 300, the clamping of the glue pulling mechanism 200 and the pressing of the glue cutting assembly 300, and the smooth cutting of the adhesive tape 700 by the cutting member 320, effectively reducing the difficulty of cutting the adhesive tape 700 by the cutting member 320, reducing the probability of the cutting member 320 being bonded with the adhesive tape, improving the smoothness of the adhesive film discharging, and further improving the efficiency of gluing the corresponding part of the battery, and correspondingly improving the production efficiency of the battery.

[0129] 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, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present disclosure.

[0130] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to 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 tape feeding device, comprising: a tape unwinding mechanism configured to unwind a tape; a tape pulling mechanism including a clamping member configured to clamp and move the tape in a first direction to pull the tape out by a preset length; a tape cutting assembly including a pressing member and a cutting member, the cutting member being located between the pressing member and the clamping member, the cutting member being configured to cut the tape pulled out by the preset length, and the pressing member being configured to press or release a portion of the tape close to the cut portion by the cutting member; wherein the pressing member includes a pressing portion and a supporting portion capable of moving away from or close to each other, the pressing portion being configured to contact a back adhesive surface of the tape, the supporting portion being configured to contact an adhesive surface of the tape, and a portion of the supporting portion contacting the adhesive surface being configured as a toothed structure.

2. The glue feeding apparatus according to claim 1, wherein The pressing portion is configured to form a surface contact with the back adhesive surface of the tape.

3. The glue feeding apparatus according to claim 2, wherein The pressing portion is configured as a flat plate structure.

4. The glue feeding apparatus according to any one of claims 1 to 3, wherein The clamping member includes a first clamping portion and a second clamping portion capable of moving away from or close to each other, the first clamping portion being configured to contact the back adhesive surface of the tape, the second clamping portion being configured to contact the adhesive surface of the tape, and a portion of the second clamping portion contacting the adhesive surface being configured as a toothed structure.

5. The glue feeding apparatus according to claim 4, wherein The first clamping portion is configured to form a line contact with the back adhesive surface of the tape.

6. The glue feeding apparatus according to any one of claims 1 to 5, wherein The tape pulling mechanism further includes a first driving member and a detection assembly, a driving end of the first driving member being connected to the clamping member to drive the clamping member to move in the first direction by the preset length, the detection assembly being configured to obtain position information of the clamping member, and the first driving member being capable of starting or stopping driving the clamping member according to the position information obtained by the detection assembly.

7. The glue feeding apparatus according to any one of claims 1 to 6, wherein The tape feeding device further includes a tape taking member configured to abut and adsorb the back adhesive surface of the cut portion of the tape when the cutting member cuts the tape. 8.The tape feeding device according to any one of claims 1 to 7, wherein the tape feeding device further includes a rack, and the tape unwinding mechanism, the tape pulling mechanism and the tape cutting assembly each include two; wherein the two tape unwinding mechanisms are symmetrically arranged on the rack, the two tape cutting assemblies are symmetrically arranged on the rack, and two clamping members of the two tape pulling mechanisms are capable of moving synchronously in the first direction. 9.A tape applying device, comprising the tape feeding device according to any one of claims 1 to 8. 10.A battery production line, comprising the tape feeding device according to any one of claims 1 to 8. 11.A battery production line, comprising the tape applying device according to claim 9.

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