Glue pasting device, glue pasting method and battery production line

Abstract

The present application discloses a glue sticking device, a glue sticking method and a battery production line. The glue sticking device is used to stick the adhesive tape to the workpiece. The glue sticking device includes: a glue sticking mechanism, including a glue sucking head, used to suck the adhesive tape; a shaping mechanism, including a shaping assembly, the shaping assembly includes a first shaping member and a second shaping member arranged at intervals, and the interval space between the first shaping member and the second shaping member constitutes a shaping channel; the glue sucking head is configured to pass through the shaping channel and make one of the two ends of the adhesive tape contact with the first shaping member and pass through the gap between the glue sucking head and the first shaping member in the shaping channel, and the other end of the two ends of the adhesive tape contact with the second shaping member and pass through the gap between the glue sucking head and the second shaping member in the shaping channel, so that the two ends of the adhesive tape are bent, and the adhesive tape passing through the shaping channel is stuck to the workpiece. Thus, the adhesive tape is more appropriately attached to the workpiece.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and in particular to a gluing device, a gluing method and a battery production line. Background Art

[0002] New energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are also being increasingly used in areas such as energy storage.

[0003] In the battery manufacturing process, especially in the gluing process, there are problems such as low gluing efficiency and unreliable gluing. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a gluing device, a gluing method and a battery production line with high gluing efficiency and more reliable gluing.

[0005] This application is implemented through the following technical solutions.

[0006] The first aspect of the present application provides a glue sticking device for sticking a tape to a workpiece, the glue sticking device comprising: a glue sticking mechanism, comprising a glue suction head, for sucking up the tape; a shaping mechanism, comprising a shaping assembly, the shaping assembly comprising a first shaping piece and a second shaping piece arranged at intervals, the interval space between the first shaping piece and the second shaping piece constituting a shaping channel; wherein the glue suction head is constructed to be able to pass through the shaping channel and make one of the two end portions of the tape contact with the first shaping piece and pass through the gap between the glue suction head and the first shaping piece in the shaping channel, the other of the two end portions of the tape contact with the second shaping piece and pass through the gap between the glue suction head and the second shaping piece in the shaping channel, thereby bending the two end portions of the tape, and the tape passing through the shaping channel is stuck to the workpiece.

[0007] Through the cooperation between the glue suction head and the shaping component, the two ends of the tape are respectively contacted and bent with the first shaping piece and the second shaping piece, and the tape can pass through the shaping channel between the first shaping piece and the second shaping piece under the drive of the glue suction head, thereby making the two ends of the tape substantially extend along the moving direction of the glue suction head, that is, the first shaping piece and the second shaping piece cooperate with the glue suction head to play a shaping role. In this way, even if the position where the tape is to be pasted is concave, the bent tape can fit the workpiece more appropriately, the pasting is more secure, and the glue pasting efficiency can be improved, and the labor cost can be reduced.

[0008] In some embodiments, the glue suction head includes a first side wall and a second side wall located on opposite sides of a first direction; the glue suction head is configured as follows: the glue suction head passes through the shaping channel along a second direction, and the two ends of the tape are bent by the misalignment action between the first side wall and the first shaping piece along the second direction and the misalignment action between the second side wall and the second shaping piece along the second direction, and the second direction is perpendicular to the first direction.

[0009] By cooperating the two side walls (the first side wall and the second side wall) of the adhesive suction head with the first shaping member and the second shaping member respectively, the two ends of the adhesive tape can be bent along the two side walls respectively, thereby improving the bending and shaping effect, being more suitable for fitting with the workpiece, and being more firmly pasted, so that the workpiece is fully protected.

[0010] In some embodiments, the glue suction head includes a bottom wall, which is connected to the first side wall and the second side wall, the bottom wall is provided with a bottom wall suction hole, the first side wall is provided with a first side wall suction hole, and the second side wall is provided with a second side wall suction hole, the first side wall suction hole and the second side wall suction hole are respectively used to absorb the two ends of the tape, and the bottom wall suction hole is used to absorb the part between the two ends of the tape.

[0011] The glue suction head absorbs the part between the two ends of the tape through the suction hole in the bottom wall, and absorbs the two ends of the tape through the suction hole in the first side wall and the suction hole in the second side wall, so that the two ends of the tape can be kept in a bent state. In this way, in the process of the glue suction head passing the absorbed tape through the shaping channel and sticking it to the ear, the risk of tearing caused by the tape pulling the electrode assembly due to the two ends of the tape sticking to the large surface of the electrode assembly can be avoided, thereby improving the reliability of sticking.

[0012] In some embodiments, the first side wall suction hole, the second side wall suction hole, and the bottom wall suction hole are respectively connected to the negative pressure device via a gas channel.

[0013] The negative pressure device provides negative pressure to absorb the tape, and the negative pressure device releases the tape, so it is convenient to control the suction head to absorb and release the tape.

[0014] In some embodiments, the first shaping member includes a first roller that can rotate freely around an axis, and the second shaping member includes a second roller that can rotate freely around an axis. The first roller and the second roller are parallel to each other and located at the same position in the second direction.

[0015] By means of the first roller and the second roller rotating freely around the axis, the friction between the two ends of the tape and the first roller and the second roller respectively when the tape passes through the shaping channel can be reduced, so that the tape can pass through the shaping channel more smoothly and complete the bending and gluing operations.

[0016] In some embodiments, the first shaping member includes a first shaping plate, and the second shaping member includes a second shaping plate.

[0017] When the adhesive suction head passes through the shaping channel, the first shaping plate and the second shaping plate contact the two ends of the adhesive tape respectively, and bend the adhesive tape in a scraping manner to improve the bending effect.

[0018] In some embodiments, at least one of the first shaping member and the second shaping member is configured to be able to float along the first direction.

[0019] Therefore, in the process of the glue suction head passing through the shaping channel, one of the two end portions of the tape is squeezed between the first side wall and the first shaping piece, and the other end portion is squeezed between the second side wall and the second shaping piece, so that the two end portions are always bent along the first side wall and the second side wall respectively, thereby improving the shaping effect, being more adaptable and firmly pasted to the pole ear, and fully protecting the pole ear.

[0020] In some embodiments, the shaping assembly includes a shaping bracket, a first shaping mounting frame and a second shaping mounting frame, the first shaping member is arranged on the first shaping mounting frame, the second shaping member is arranged on the second shaping mounting frame, a first elastic member is connected between the shaping bracket and the first shaping mounting frame, the first elastic member can be extended and retracted along the first direction so that the first shaping member floats along the first direction; and / or a second elastic member is connected between the shaping bracket and the second shaping mounting frame, the second elastic member can be extended and retracted along the first direction so that the second shaping member floats along the first direction.

[0021] When the adhesive suction head passes through the shaping channel, one of the two end portions of the adhesive tape is squeezed between the first side wall and the first shaping member, and the other end portion is squeezed between the second side wall and the second shaping member by at least one of the first elastic member and the second elastic member extending and contracting along the first direction. In this way, the two end portions of the adhesive tape are bent respectively against the first side wall and the second side wall, thereby improving the shaping effect and being more adaptably adhered to the pole ear, thereby making the fit more secure.

[0022] In some embodiments, a first guide member is provided on the shaping bracket, the first guide member extends along the first direction, and the first shaping mounting frame can be slidably provided on the first guide member; and / or, a second guide member is provided on the shaping bracket, the second guide member extends along the first direction, and the second shaping mounting frame can be slidably provided on the second guide member.

[0023] The first guide member and the second guide member are respectively slidably matched with the first shaping mounting frame and the second shaping mounting frame, so as to improve the stability of the first shaping member and the second shaping member floating along the first direction and improve the bending reliability of the tape.

[0024] In some embodiments, the shaping mechanism also includes a shaping frame and a shaping drive member disposed on the shaping frame, the driving end of the shaping drive member is connected to the shaping support, and the shaping drive member can drive the shaping component to approach or move away from the workpiece along the second direction.

[0025] By driving the shaping component along the second direction z to approach or move away from the workpiece through the shaping drive, the distance between the shaping component and the workpiece can be adjusted to adapt to different workpiece sizes.

[0026] In some embodiments, at least two groups of the glue suction heads are provided, and two adjacent groups of the glue suction heads are arranged at intervals along a third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0027] Multiple groups of adhesive tapes can absorb multiple adhesive tapes at the same time. When the adhesive tapes pass through the shaping channel, multiple adhesive tapes can be bent at the same time, so that the bent adhesive tapes can be pasted on multiple workpieces or multiple different parts of the same workpiece at the same time, thereby improving the pasting efficiency.

[0028] In some embodiments, two adjacent groups of the glue suction heads are configured to be able to move closer to or farther from each other along the third direction.

[0029] Therefore, the distance between the two sets of glue suction heads in the third direction can be adjusted, so as to adapt to more types of workpieces and improve versatility.

[0030] In some embodiments, the glue sticking mechanism further includes: a glue suction head driving member, which is used to drive at least one group of glue suction heads to move along the third direction.

[0031] The glue suction head is driven to move along the third direction by the glue suction head driving member, so that the distance between the two groups of glue suction heads can be automatically adjusted, and more types of workpieces can be efficiently adapted.

[0032] In some embodiments, each group of the glue suction heads includes two glue suction blocks, and the two glue suction blocks are spaced apart along the first direction and are configured to be able to approach or move away from each other along the first direction.

[0033] Therefore, the distance in the first direction between the two glue suction blocks of each group of glue suction heads can be adjusted, so as to adapt to more types of workpieces and improve versatility.

[0034] In some embodiments, the glue laminating device also includes: a glue supply mechanism, including at least two glue supply units, each of the glue supply units is configured to be able to switch between a glue changing station and a glue supply station, the glue suction head absorbs the tape cut from the film roll carried by the glue supply unit at the glue supply station, and the glue changing station is used to replace the film roll.

[0035] Each glue supply unit can switch between the glue changing station and the glue supply station, which can realize the replacement of film rolls without stopping the machine, continuously provide tape to the glue head, and improve production efficiency.

[0036] In some embodiments, when any one of the at least two glue supply units is located at the glue supply station, the remaining glue supply units are located at their respective glue changing stations.

[0037] Therefore, each glue supply unit can independently switch between the glue supply station and the glue changing station, making it convenient for each glue supply unit to change the film.

[0038] In some embodiments, the glue supply mechanism also includes a slide rail and at least two glue supply driving components, each of the glue supply units can be slidably disposed on the slide rail, and each of the glue supply driving components is configured to drive the glue supply unit to slide between the glue changing station and the glue supply station.

[0039] Each glue supply unit is driven by an independent glue supply driving member, which facilitates the separate control of each glue supply unit and improves the reliability of each glue supply unit when switching.

[0040] In some embodiments, each of the glue supply units includes a glue supply bracket, a film installation shaft and a glue feeding mechanism, the film installation shaft is respectively arranged on both sides of the glue supply bracket in the third direction, and the glue feeding mechanism is respectively arranged on both sides of the glue supply bracket in the third direction.

[0041] Thus, each glue supply unit can deliver two adhesive tapes at the same time, so that the glue suction head can absorb two adhesive tapes at a time, thereby improving the glue feeding efficiency and further improving the glue sticking efficiency.

[0042] In some embodiments, the glue feeding mechanism includes a glue pulling mechanism, a glue pressing mechanism and a glue cutting mechanism. Along the conveying direction of the tape, the glue pressing mechanism, the glue cutting mechanism and the glue pulling mechanism are arranged in sequence; the glue pulling mechanism is used to pull the tape to unwind, the glue pressing mechanism is used to press the tape in the second direction, and the glue cutting mechanism is used to cut the tape.

[0043] In this way, adhesive tape can be automatically provided to the adhesive head, thereby improving the adhesive feeding efficiency and further improving the adhesive laminating efficiency.

[0044] In some embodiments, the glue sticking mechanism further includes a movable frame, wherein the movable frame is connected to the glue suction head and is used to drive the glue suction head to move along the first direction and the second direction respectively.

[0045] Therefore, the glue suction head can automatically complete the glue suction and glue sticking operations, thereby improving the glue sticking efficiency.

[0046] A second aspect of the present application provides a glue sticking method for sticking an adhesive tape to a workpiece, the glue sticking method comprising: a glue sucking step: a glue sucking head sucks the adhesive tape; a tape shaping step: the glue sucking head passes through a shaping channel formed by the interval space between a first shaping member and a second shaping member, so that the two ends of the sucked adhesive tape contact the first shaping member and the second shaping member respectively, thereby bending the two ends of the adhesive tape; a glue sticking step: the glue sucking head sticks the adhesive tape passing through the shaping channel to the workpiece, wherein, in the tape shaping step, one of the two ends of the adhesive tape contacts the first shaping member and passes through the gap between the glue sucking head and the first shaping member in the shaping channel, and the other of the two ends of the adhesive tape contacts the second shaping member and passes through the gap between the glue sucking head and the second shaping member in the shaping channel.

[0047] Through the cooperation between the glue suction head and the shaping component, the two ends of the tape are respectively contacted with the two shaping parts to bend and shape the two ends of the tape. The bent and shaped tape can fit the concave structure of the workpiece more appropriately and stick more firmly, and can improve production efficiency and reduce labor costs. In the battery production process, the position where the two pole ears are connected to each other and the root of each pole ear are effectively protected, and the pole ear gluing operation is automatically completed through the gluing device, which improves the gluing efficiency, thereby improving the battery production efficiency and reducing labor costs.

[0048] In some embodiments, after the tape shaping step and before the glue sticking step, the glue sticking method further includes: a tape bending and holding step, in which the two ends of the bent tape are respectively sucked through the first side wall suction hole of the first side wall and the second side wall suction hole of the glue sucking head.

[0049] The glue suction head absorbs the part between the two ends of the tape through the suction hole in the bottom wall, and absorbs the two ends of the tape through the suction hole in the first side wall and the suction hole in the second side wall, so that the two ends of the tape can be kept in a bent state. In this way, in the process of the glue suction head passing the absorbed tape through the shaping channel and sticking it to the ear, the risk of tearing caused by the tape pulling the electrode assembly due to the two ends of the tape sticking to the large surface of the electrode assembly can be avoided, thereby improving the reliability of sticking.

[0050] In some embodiments, the glue application method further includes: a glue supply step, which includes: switching the glue supply unit of the glue roll to be replaced at the glue supply station from the glue supply station to the glue changing station; switching the glue supply unit of the replaced film at the glue changing station from the glue changing station to the glue supply station; and the glue supply unit at the glue supply station provides the adhesive tape to the glue suction head.

[0051] The glue supply unit can switch between the glue changing station and the glue supply station, which can realize the replacement of film rolls without stopping the machine, continuously provide tape to the glue head, and improve production efficiency.

[0052] In some embodiments, the glue supply unit at the glue supply station provides the adhesive tape to the glue suction head, including: unwinding the adhesive tape by pulling the adhesive tape through the adhesive pulling mechanism of the glue supply unit at the glue supply station; pressing the adhesive tape through the adhesive pressing mechanism of the glue supply unit at the glue supply station; and cutting the adhesive tape through the adhesive cutting mechanism of the glue supply unit at the glue supply station.

[0053] In this way, adhesive tape can be automatically provided to the adhesive head, thereby improving the adhesive feeding efficiency and further improving the adhesive laminating efficiency.

[0054] A third aspect of the present application provides a battery production line, comprising: a providing device for providing workpieces; and a gluing device as described in any of the above embodiments.

[0055] In some embodiments, the workpiece includes at least two electrode assemblies, the pole ears of two adjacent electrode assemblies are connected to each other, and the pole ears are located in a recessed space between the two adjacent electrode assemblies; the glue suction head is constructed as follows: the tape passing through the shaping channel is adhered to the pole ears and covers the pole ears.

[0056] Effect of the invention:

[0057] Through the present application, the bending and shaping of the tape can be achieved, and the bent and shaped tape can fit the workpiece more closely and adhere more securely, thereby improving the gluing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0059] Figure 1 A schematic diagram of the structure of a glue sticking device provided in some embodiments of the present application;

[0060] Figure 2 A schematic diagram of the structure of a glue suction head provided in some embodiments of the present application;

[0061] Figure 3 A front view of a glue suction head provided for some embodiments of the present application;

[0062] Figure 4 A side view of a glue suction head provided for some embodiments of the present application;

[0063] Figure 5 A schematic diagram of the structure of a shaping mechanism provided in some embodiments of the present application;

[0064] Figure 6 A top view of a shaping mechanism provided for some embodiments of the present application;

[0065] Figure 7 A schematic diagram of the structure of a glue supply unit provided in some embodiments of the present application;

[0066] FIG8 (a) is a top view of the electrode assembly before being taped;

[0067] FIG8( b ) is a front view of the electrode assembly before being taped;

[0068] Fig. 9 A flowchart of a glue application method provided in some embodiments of the present application;

[0069] Fig.10 A flowchart of a glue application method provided for other embodiments of the present application;

[0070] Fig.11 A flowchart of a glue application method provided in some embodiments of the present application;

[0071] Fig.12 A flowchart of a gluing method provided for some further embodiments of the present application.

[0072] Description of Reference Numerals

[0073] 100-Glue sticking device;

[0074] 1-glue sticking mechanism; 10-glue suction head; 101-first side wall; 101a-first side wall suction hole; 102-second side wall; 103-bottom wall; 103a-bottom wall suction hole; 11-glue suction block; 11a-adjustment hole; 12-glue suction head driving member; 121-first support frame; 122-second support frame; 13-glue suction head bracket; 14-guide rail; 15-fixed block; 15a-positioning hole;

[0075] 2-shaping mechanism; 20-shaping assembly; 20a-shaping channel; 21-first shaping member; 22-second shaping member; 23-shaping bracket; 24-first shaping mounting frame; 25-second shaping mounting frame; 261-first guide member; 262-second guide member; 27-shaping frame; 28-shaping driving member; 291-first elastic member; 292-second elastic member;

[0076] 3-glue supply mechanism; 30-glue supply unit; 30a-first glue supply unit; 30b-second glue supply unit; 301-slide rail; 302-glue driving member; 31-glue supply bracket; 32-film installation shaft; 33-glue feeding mechanism; 331-glue pulling mechanism; 332-glue pressing mechanism; 333-glue cutting mechanism;

[0077] 200-Tape;

[0078] 300-electrode assembly; 310-ear; 320-large surface;

[0079] A-glue changing station; A1-first glue changing station; A2-second glue changing station; B-glue supply station; x-first direction; z-second direction; y-third direction. DETAILED DESCRIPTION

[0080] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0082] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0083] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0084] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0085] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0086] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0087] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0088] Below, this application is described in detail.

[0089] At present, new energy batteries are increasingly used in life and industry. New energy batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0090] During the battery manufacturing process, tapes need to be applied to multiple parts of the battery to protect it. When applying tapes to the local flat structure of the battery, this can be automated through a tape application device, thereby improving battery production efficiency and reducing labor costs. When applying tapes to the local uneven structure of the battery (such as a concave structure), most of the current methods use manual application, which is not only inefficient but also increases labor costs.

[0091] For example, in the electrode assembly pairing process in the battery manufacturing process, first, it is necessary to stick tape on the interconnected pole ears between two flatly placed electrode assemblies, and then rotate one of the electrode assemblies 180° toward the other electrode assembly, so that the two electrode assemblies form a pair of electrode assembly pairs with mirror-symmetrical structures. During the rotation of the electrode assembly, the interconnected pole ears will bend, the connected positions are prone to cracking, and there is also a risk of fracture at the root position of the pole ears. Therefore, before the electrode assembly is rotated and paired, the position where the two pole ears are connected and the root position of the pole ears are covered with tape, which can fully protect the pole ears. Since a recessed area is formed between the opposite ends of the two electrode assemblies, and the interconnected pole ears are located in the recessed area, the opposite ends of the two electrode assemblies and the connected pole ears together form a roughly U-shaped recessed structure. When sticking the tape, if the root of the pole ear is to be completely covered, the tape needs to be shaped into a shape that matches the recessed structure. Therefore, there is an urgent need for a glue sticking device that can shape the adhesive tape so that the shaped adhesive tape can be more appropriately attached to a concave structure like this.

[0092] In view of this, the present application provides a glue sticking device for sticking a tape to a workpiece, the glue sticking device includes a glue sticking mechanism and a shaping mechanism, the glue sticking mechanism includes a glue suction head for sucking the tape; the shaping mechanism includes a shaping assembly, the shaping assembly includes a first shaping piece and a second shaping piece arranged at intervals, and the interval space between the first shaping piece and the second shaping piece constitutes a shaping channel; wherein the glue suction head is configured to: be able to pass through the shaping channel and make the two ends of the tape contact the first shaping piece and the second shaping piece respectively, so that the two ends of the tape are bent, and the tape passing through the shaping channel is stuck to the workpiece.

[0093] Through the cooperation between the adhesive suction head and the shaping component, the bending and shaping of the two ends of the tape can be achieved. The bent and shaped tape can fit the workpiece more closely and stick more securely, and it can also improve efficiency and reduce labor costs.

[0094] The workpiece may be a pair of electrode assemblies of a battery. Of course, the workpiece may also be other parts with a recessed structure, such as a part with a roughly U-shaped structure, which is also applicable. That is, the gluing device of the embodiment of the present application can be used in the battery production process, for example, for gluing the pole ears in the pairing process of the electrode assembly of the battery. Of course, those skilled in the art should understand that the gluing device provided in the embodiment of the present application is not only used for gluing in the battery production and manufacturing process, but can also be used for gluing other workpieces that require gluing.

[0095] In the embodiment of the present application, the battery may be a battery cell.

[0096] The battery cell may be a secondary battery, which refers to a battery cell that can be continuously used by activating the active material by charging after the battery cell is discharged.

[0097] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0098] A battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode sheet, a negative electrode sheet, and a separator. The tabs include a positive tab and a negative tab. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and released back and forth between the positive electrode and the negative electrode. The separator is arranged between the positive electrode sheet and the negative electrode sheet, which can prevent the positive electrode sheet and the negative electrode sheet from short-circuiting, and at the same time allow active ions to pass through.

[0099] In some embodiments, the battery cell further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. The present application has no specific restrictions on the type of electrolyte, which can be selected according to needs. The electrolyte can be liquid, gel or solid.

[0100] In some embodiments, the battery cell may include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing may be a steel housing, an aluminum housing, a plastic housing (such as polypropylene), a composite metal housing (such as a copper-aluminum composite housing), or an aluminum-plastic film.

[0101] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. The prismatic battery cell includes a square shell battery cell, a blade-shaped battery cell, a polygonal battery, such as a hexagonal battery, etc. There is no special limitation in this application.

[0102] In some embodiments, the housing includes an end cap and a shell, the shell is provided with an opening, and the end cap closes the opening to form a closed space for accommodating substances such as the electrode assembly and the electrolyte. The shell may be provided with one or more openings. One or more end caps may also be provided.

[0103] In some embodiments, at least one electrode terminal is disposed on the housing, and the electrode terminal is electrically connected to the tab. The electrode terminal may be directly connected to the tab, or may be indirectly connected to the tab via a connecting component. The electrode terminal may be disposed on the end cap, or may be disposed on the housing.

[0104] In some embodiments, a pressure relief mechanism is provided on the housing, and the pressure relief mechanism is used to release the internal pressure of the battery cell.

[0105] In the embodiment of the present application, the battery may also be a single physical module including one or more battery cells to provide higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, in parallel or in hybrid connection through a busbar component.

[0106] Below, refer to Figures 1 to 7 Some embodiments of the present application are described in detail.

[0107] The embodiment of the present application provides a glue sticking device 100 for sticking a tape 200 to a workpiece, and the glue sticking device 100 includes a glue sticking mechanism 1 and a shaping mechanism 2. The glue sticking mechanism 1 includes a glue suction head 10 for sucking up the tape. The shaping mechanism 2 includes a shaping assembly 20, and the shaping assembly 20 includes a first shaping member 21 and a second shaping member 22 that are spaced apart, and the spacing between the first shaping member 21 and the second shaping member 22 constitutes a shaping channel 20a. Among them, the glue suction head 10 is configured to: be able to pass through the shaping channel 20a and make the two ends of the tape contact the first shaping member 21 and the second shaping member 22 respectively, so that the two ends of the tape are bent, and the tape passing through the shaping channel 20a is stuck to the workpiece.

[0108] The glue sticking device 100 can be used in the battery production process, for example, for sticking glue on the tabs in the process of pairing the electrode assembly of the battery. Referring to Figures 8 (a) and 8 (b), the workpiece takes the electrode assembly 300 of the battery as an example. In the process of pairing two electrode assemblies, a recessed area is formed between the opposite ends of the two electrode assemblies 300, and the interconnected tabs 310 of the two electrode assemblies 300 are located in the recessed area. Therefore, the opposite ends of the two electrode assemblies 300 and the connected tabs 310 together form a roughly U-shaped recessed structure. When sticking the tape 200, if the base of the tab is to be completely covered, the tape 200 needs to be shaped into a shape that matches the recessed structure, such as a roughly U-shape.

[0109] The adhesive suction head 10 can pass through the shaping channel 20a and make the two ends of the adhesive tape contact the first shaping member 21 and the second shaping member 22 respectively, so that the two ends of the adhesive tape are bent.

[0110] The ability of the glue suction head 10 to pass through the shaping channel 20a can be understood as the glue suction head 10 and at least one of the shaping assembly 20 moving toward each other so that the glue suction head 10 passes through the shaping channel 20a. Figure 1 , Figure 2 and Figure 5 , the shaping component 20 can be relatively stationary, and the glue suction head 10 moves close to the shaping component 20, so that the glue suction head 10 passes through the shaping channel 20a; or, the glue suction head 10 can be relatively stationary, and the shaping component 20 moves close to the glue suction head, so that the glue suction head 10 passes through the shaping channel 20a; or the glue suction head 10 and the shaping component 20 move toward each other respectively, so that the glue suction head 10 passes through the shaping channel 20a.

[0111] The glue sucking head 10 can pass through the shaping channel 20a and make the two ends of the adhesive tape contact the first shaping member 21 and the second shaping member 22 respectively, so that the two ends of the adhesive tape are bent. In the process of the glue sucking head 10 passing through the shaping channel 20a, one end of the adhesive tape 200 contacts the first shaping member 21 and passes through the gap between the glue sucking head 10 and the first shaping member 21 in the shaping channel 20a, so that the one end is bent, and the other end of the two ends of the adhesive tape 200 contacts the second shaping member 22 and passes through the gap between the glue sucking head 10 and the second shaping member 22 in the shaping channel 20a, so that the other end is bent. The two ends bent in this way become a shape that generally extends along the second direction Z.

[0112] For example, in this embodiment, the shaping component 20 is relatively stationary, and the glue sucking head 10 moves along the second direction z (for example, the up-down direction) close to the shaping component 20, so that the glue sucking head 10 passes through the shaping channel 20a. When the glue sucking head 10 sucks the adhesive tape 200, the two ends of the adhesive tape 200 respectively exceed the two side walls of the glue sucking head 10. In the process of the glue sucking head 10 passing through the shaping channel 20a, the two ends of the adhesive tape 200 respectively interfere with and contact the first shaping member 21 and the second shaping member 22, so that the two ends of the adhesive tape 200 are bent upwards respectively.

[0113] The tape 200 passing through the shaping channel 20a can be pasted on the workpiece while the two ends of the tape 200 interfere with the first shaping piece 21 and the second shaping piece 22 and are bent, that is, the tape 200 is pasted on the workpiece while being bent; or the two ends of the tape 200 are bent and then pasted on the workpiece.

[0114] In an example, refer to Figure 1 , Figure 2 , Figure 5, Figure 6 8 (a) and (b), when the adhesive sticking device sticks the tape to the pole ear, the electrode assembly 300 can be located directly below the shaping channel 20a, and when the adhesive suction head 10 passes through the shaping channel 20a, the tape 200 can be bent and stuck to the pole ear. Specifically, while the two ends of the tape 200 are bent in interference contact with the first shaping member 21 and the second shaping member 22, the middle part located at the two ends is bonded to the interconnected pole ear 310, and the bent parts of the two ends of the tape 200 are bonded to the opposite end surfaces of the two electrode assemblies 300. When the two ends of the tape 200 are completely separated from the first shaping member 21 and the second shaping member 22, the two ends of the tape 200 are also all bonded to the opposite end surfaces of the electrode assembly 300, thereby fully covering the pole ear.

[0115] In another example, during the process of the glue suction head 10 passing through the shaping channel 20a, the tape 200 can be bent and then pasted to the pole ear. Specifically, after the two ends of the tape 200 are bent in interference contact with the first shaping piece 21 and the second shaping piece 22 respectively, the middle part at the two ends of the tape 200 is adhered to the interconnected pole ears 310 through the glue suction head 10, and the bent parts at the two ends of the tape 200 are adhered to the opposite end surfaces of the two pole ear components, thereby fully covering the pole ears.

[0116] Thus, through the mutual cooperation between the glue suction head 10 and the shaping assembly 20, the two ends of the tape 200 are respectively contacted with the two shaping members to bend and shape the two ends of the tape 200. The bent and shaped tape 200 can fit more appropriately with the recessed structure of the workpiece, and the adhesion is more reliable, and the production efficiency can be improved and the labor cost can be reduced. In the battery production process, the positions where the two pole ears are connected to each other and the roots of each pole ear are effectively protected, and the pole ear glue operation is automatically completed by the glue sticking device, which improves the glue sticking efficiency, thereby improving the battery production efficiency and reducing the labor cost.

[0117] In some embodiments, the glue suction head 10 includes a first side wall 101 and a second side wall 102 located on opposite sides along a first direction x; the glue suction head is configured as follows: the glue suction head 10 passes through the shaping channel 20a along the second direction z, and the two ends of the tape 200 are bent by the misalignment action between the first side wall 101 and the first shaping member 21 along the second direction z and the misalignment action between the second side wall 102 and the second shaping member 22 along the second direction z, and the second direction z is perpendicular to the first direction x.

[0118] When the adhesive tape 200 is sucked by the adhesive suction head 10 , two ends of the adhesive tape 200 extend beyond the first side wall 101 and the second side wall 102 , respectively.

[0119] See also Figure 2 , Figure 5 and Figure 6 , the misalignment between the first side wall 101 and the first shaping member 21 along the second direction z and the misalignment between the second side wall 102 and the second shaping member 22 along the second direction z make the two ends of the adhesive tape 200 bend. It can be understood that when the adhesive suction head 10 passes through the shaping channel 20a along the second direction z (for example, the up-down direction), one of the two ends of the adhesive tape 200 is restricted between the first side wall 101 and the first shaping member 21, and the other end is restricted between the second side wall 102 and the second shaping member 22, thereby improving the bending effect. "Restriction" can be understood as one end of the adhesive tape 200 is squeezed between the first side wall 101 and the first shaping member 21, so that the opposite sides of the one end are respectively squeezed and contacted with the first side wall 101 and the first shaping member 21 and bent, and the other end is squeezed between the second side wall 102 and the second shaping member 22, so that the opposite sides of the other end are respectively squeezed and contacted with the second side wall 102 and the second shaping member 22 and bent. Of course, "restriction" can also be understood as that the two ends of the adhesive tape 200 are in non-extrusion contact with the first side wall 101 and the first shaping member 21, and between the second side wall 102 and the second shaping member 22, respectively, that is, when the adhesive suction head 10 passes through the shaping channel 20a along the second direction z (for example, the up and down direction), one end of the adhesive tape 200 is located in the gap between the first side wall 101 and the first shaping member 21, and the other end is located in the gap between the second side wall 102 and the second shaping member 22, which can also improve the bending effect of the two ends of the adhesive suction head 10.

[0120] By staggering the two side walls (the first side wall 101 and the second side wall 102) of the adhesive suction head 10 with the first shaping member 21 and the second shaping member 22 respectively, the two ends of the adhesive tape 200 can be bent basically along the two side walls, thereby improving the bending and shaping effect, and being more adaptable to fit the tabs between the two electrode assemblies 300, so that the adhesion is more secure and the tabs are fully protected.

[0121] In some embodiments, reference Figure 2 and Figure 3 The adhesive suction head 10 includes a bottom wall 103, which is connected to the first side wall 101 and the second side wall 102. The bottom wall 103 is provided with a bottom wall suction hole 103a, the first side wall 101 is provided with a first side wall suction hole 101a, and the second side wall 102 is provided with a second side wall suction hole (not marked in the figure). The first side wall suction hole 101a and the second side wall suction hole are respectively used for sucking the two ends of the adhesive tape 200, and the bottom wall suction hole 103a is used for sucking the part between the two ends of the adhesive tape 200.

[0122] The glue suction head 10 absorbs the portion between the two ends of the tape 200 through the bottom wall suction hole 103a, and absorbs the two ends of the tape 200 through the first side wall suction hole 101a and the second side wall suction hole, and can keep the two ends in a bent state. In this way, when the glue suction head 10 sticks the absorbed tape 200 along the second direction z (for example, the up and down direction) through the shaping channel 20a to the electrode ear 310, the risk of tearing caused by the tape 200 pulling the electrode assembly 300 due to the two ends of the tape 200 sticking to the large surface 320 of the electrode assembly 300 (as shown in Figure 8 (b)) can be avoided, thereby improving the reliability of sticking.

[0123] For example, the first side wall suction hole 101 a , the second side wall suction hole 103 a and the bottom wall suction hole 103 a may be connected to a negative pressure device (not shown) via gas channels, respectively.

[0124] The negative pressure device provides a negative pressure to absorb the adhesive tape 200, and the negative pressure device releases the adhesive tape 200, so as to facilitate the control of the adhesive suction head to absorb and release the adhesive tape.

[0125] For example, the number of the first side wall suction hole 101 a , the second side wall suction hole and the bottom wall suction hole 103 a may be 1, 2, 3 or more.

[0126] In some embodiments, reference Figure 5 and Figure 6 The first shaping member 21 includes a first roller that can rotate freely around the axis, and the second shaping member 22 includes a second roller that can rotate freely around the axis. The first roller and the second roller are parallel to each other and are located at the same position in the second direction z.

[0127] The first roller and the second roller that rotate freely around the axis can be understood as the first roller and the second roller that can rotate around their own axis under the action of external contact force, that is, the first roller and the second roller do not need additional driving components to provide the power required for rotation. For example, when the adhesive suction head 10 passes through the shaping channel 20a along the second direction z, the two ends of the adhesive tape 200 contact the first roller and the second roller respectively, and the first roller and the second roller are driven to rotate through the adhesive force between the adhesive surfaces of the two ends and the first roller and the second roller respectively.

[0128] By means of the first roller and the second roller rotating freely around the axis, when the glue suction head 10 passes through the shaping channel 20a along the second direction z, the friction between the two ends of the tape 200 and the first roller and the second roller respectively can be reduced, so that the glue suction head 10 can pass through the shaping channel 20a more smoothly and complete the bending and gluing operations.

[0129] In some embodiments, the first shaping member 21 includes a first shaping plate, and the second shaping member 22 includes a second shaping plate.

[0130] When the adhesive suction head 10 passes through the shaping channel 20a along the second direction z, the first shaping plate and the second shaping plate contact the two ends of the adhesive tape 200 respectively, and bend the adhesive tape 200 in a scraping manner to improve the bending effect.

[0131] In some embodiments, at least one of the first shaping member 21 and the second shaping member 22 is configured to be able to float along the first direction x.

[0132] It can be understood that the first shaping member 21 can move closer to or farther from the second shaping member 22 along the first direction x. For example, the first shaping member 21 is stationary, and the second shaping member 22 moves closer to or farther from the first shaping member 21 along the first direction x; or, the second shaping member 22 is stationary, and the first shaping member 21 moves closer to or farther from the second shaping member 22 along the first direction x; or, the first shaping member 21 and the second shaping member 22 can both move toward a direction closer to or farther from each other.

[0133] Therefore, in the process of the glue suction head 10 passing through the shaping channel 20a along the second direction z, one of the two end portions of the tape 200 can be squeezed between the first side wall 101 and the first shaping piece 21, and the other end portion can be squeezed between the second side wall 102 and the second shaping piece 22. In this way, the two end portions are always bent along the first side wall 101 and the second side wall 102 respectively, thereby improving the shaping effect, being more adaptable and firmly adhered to the pole ear, and fully protecting the pole ear.

[0134] In some embodiments, reference Figure 5 and Figure 6 The shaping assembly 20 includes a shaping bracket 23, a first shaping mounting frame 24 and a second shaping mounting frame 25, the first shaping member 21 is arranged on the first shaping mounting frame 24, the second shaping member 22 is arranged on the second shaping mounting frame 25, a first elastic member 291 is connected between the shaping bracket 23 and the first shaping mounting frame 24, the first elastic member 291 can be extended and retracted along the first direction x so that the first shaping member 21 floats along the first direction x; and / or, a second elastic member 292 is connected between the shaping bracket 23 and the second shaping mounting frame 25, the second elastic member 292 can be extended and retracted along the first direction x so that the second shaping member 22 floats along the first direction x.

[0135] The shaping bracket 23 may be a frame structure. The first shaping mounting frame 24 is used to support the first shaping member 21, and the second shaping mounting frame 25 is used to support the second shaping member 22. For example, when the first shaping member 21 is a first rotating roller and the second shaping member 22 is a second rotating roller, the first shaping member 21 is rotatably disposed on the first shaping mounting frame 24, and the second shaping member 22 is rotatably disposed on the second shaping mounting frame 25.

[0136] When the adhesive suction head 10 passes through the shaping channel 20a along the second direction z, one of the two end portions of the adhesive tape 200 is squeezed between the first side wall 101 and the first shaping member 21, and the other end portion is squeezed between the second side wall 102 and the second shaping member 22 by at least one of the first elastic member 291 and the second elastic member 292 extending and contracting along the first direction x. In this way, the surfaces of the two end portions opposite to the adhesive surfaces (such as non-adhesive surfaces) are always bent against the first side wall 101 and the second side wall 102, respectively, thereby improving the shaping effect and being more adaptably adhered to the pole ear, thereby making the fit more secure.

[0137] In some embodiments, a first guide member 261 is provided on the shaping bracket 23, the first guide member 261 extends along the first direction x, and the first shaping mounting frame 24 is slidably provided on the first guide member 261; and / or, a second guide member 262 is provided on the shaping bracket 23, the second guide member 262 extends along the first direction x, and the second shaping mounting frame 25 is slidably provided on the second guide member 262.

[0138] One end of the first guide member 261 can be fixed on a side plate of the shaping bracket 23, and the other end passes through the sliding hole on the first shaping mounting frame 24, so as to realize the sliding connection between the first shaping mounting frame 24 and the first guide member 261, so that the first shaping member 21 can float more smoothly along the first direction x.

[0139] One end of the second guide member 262 can be fixed to the other side plate of the shaping bracket 23, and the other end passes through the sliding hole on the second shaping mounting frame 25, so as to realize the sliding connection between the second shaping mounting frame 25 and the second guide member 262, so that the second shaping member 22 can float more smoothly along the first direction x.

[0140] In some embodiments, the shaping mechanism 2 also includes a shaping frame 27 and a shaping drive 28 arranged on the shaping frame 27, the driving end of the shaping drive 28 is connected to the shaping bracket 23, and the shaping drive 28 can drive the shaping component 20 to approach or move away from the workpiece along the second direction z.

[0141] By driving the shaping component 20 along the second direction z to approach or move away from the workpiece through the shaping drive 28, the distance between the shaping component 20 and the workpiece can be adjusted to adapt to different workpiece sizes.

[0142] The shaping driving member 28 may be a cylinder, and the driving end of the cylinder can be extended and retracted along the second direction z, thereby driving the shaping assembly 20 to approach or move away from the workpiece along the second direction z.

[0143] The shaping drive member 28 can also be a driving structure such as a hydraulic cylinder, a linear motor, or a combination of a motor and a transmission component. The transmission component can be a belt transmission component, a chain transmission component, a screw nut transmission component, etc.

[0144] In some embodiments, see Figure 1-Figure 4 At least two groups of glue suction heads 10 are provided, and two adjacent groups of glue suction heads 10 are arranged at intervals along the third direction y, and the third direction y is perpendicular to the first direction x and perpendicular to the second direction z.

[0145] The glue suction heads 10 can be arranged in two, three, four, five or more groups.

[0146] Multiple groups of adhesive tapes 200 can be sucked up simultaneously by the adhesive tapes 200. When the adhesive tapes 200 pass through the shaping channel 20a along the second direction z, the adhesive tapes 200 can be bent simultaneously, so as to be pasted on multiple workpieces or multiple different parts of the same workpiece at the same time, thereby improving pasting efficiency.

[0147] For example, referring to FIG. 8 (a) and FIG. 8 (b), when the glue sticking device 100 sticks the adhesive tape to the paired electrode assemblies, one end of the stack of each electrode assembly leads out two pole ears 310 arranged along the third direction y. Two groups of glue sucking heads 10 can be provided. When the glue sucking heads 10 pass through the shaping channel 20a along the second direction z, the two groups of glue sucking heads 10 can bend the two adhesive tapes 200 at the same time, so as to stick them on the two pole ears 310 at the same time, thereby improving the sticking efficiency.

[0148] In some embodiments, two adjacent groups of glue suction heads 10 are configured to be able to approach or move away from each other along the third direction y, thereby adjusting the distance between the two groups of glue suction heads 10 in the third direction y, thereby adapting to more types of workpieces.

[0149] At least one of the two adjacent groups of glue suction heads 10 moves closer to or farther from each other relative to the other group. That is, only one of the two adjacent groups of glue suction heads 10 can move closer to or farther from the other group, or both groups can move closer to or farther from each other.

[0150] For example, for different types of batteries, when the electrode assemblies are paired, the spacing between the two pole ears 310 along the third direction y may be different. By adjusting the distance between the two sets of glue suction heads 10 in the third direction y to match the spacing between the two pole ears 310, glue sticking operations can be performed for different types of batteries, thereby improving versatility.

[0151] In some embodiments, the glue sticking mechanism 1 further includes a glue suction head driving member for driving at least one group of glue suction heads 10 to move along the third direction y.

[0152] For example, each group of glue suction heads 10 can be driven by a glue suction head driving member 12. The glue suction head driving member 12 can be a driving structure such as a cylinder, a hydraulic cylinder, a linear motor, etc., or can be a combination of a motor and a transmission component, and the transmission component can be a belt transmission component, a chain transmission component, a lead screw nut transmission component, etc.

[0153] For example, the glue sticking mechanism 1 also includes a glue suction head bracket 13, on which a guide rail 14 extending along a third direction y is provided, and each group of glue suction heads 10 is slidably connected to the guide rail 14, respectively. The glue suction head driving member 12 can be a cylinder fixed on the glue suction head bracket 13, and two cylinders are provided. The telescopic ends of each cylinder are respectively connected to the glue suction head 10, so as to drive each group of glue suction heads 10 to approach or move away from each other along the third direction y.

[0154] In some embodiments, see Figure 1-Figure 4 Each group of glue suction heads 10 includes two glue suction blocks 11, which are spaced apart along the first direction x and are configured to be able to approach or move away from each other along the first direction x. Thus, the spacing between the two glue suction blocks 11 of each group of glue suction heads 10 in the first direction x can be adjusted to adapt to different types of workpieces or different parts of the same workpiece.

[0155] For example, referring to FIG. 8 (a) and FIG. 8 (b), for different types of batteries, when the electrode assemblies are paired, the spacing between the two stacks in the first direction x may be different. By adjusting the distance in the first direction x between the two glue suction blocks 11 of each group of glue suction heads 10 to match the spacing between the two stacks, glue sticking operations can be performed for different types of batteries, thereby improving versatility.

[0156] For example, each group of glue suction heads 10 may include a fixing block 15, on which a plurality of positioning holes 15a distributed along the first direction x are provided, and on at least one of the two glue suction blocks 11, an adjustment hole 11a extending along the first direction x is provided, and the adjustment hole 11a is fixedly connected to the corresponding positioning hole 15a by a fastener.

[0157] The distance between the two glue sucking blocks 11 is adjusted by adjusting the holes 11a to correspond to the positioning holes 15a at different positions. Among them, each group of glue sucking heads 10 can be slidably connected to the guide rails 14 on the glue sucking head bracket 13 through the fixing block 15.

[0158] In some embodiments, see Figure 1 and Figure 7 The glue sticking device 100 also includes a glue supply mechanism 3, which includes at least two glue supply units 30. Each glue supply unit 30 is configured to be switchable between a glue changing station A and a glue supply station B. The glue suction head 10 absorbs the adhesive tape cut from the film roll carried by the glue supply unit 30 at the glue supply station B, and the glue changing station A is used to replace the film roll.

[0159] When one or more glue supply units 30 located at glue supply station B provide adhesive tape for glue suction head 10, the remaining glue supply units 30 are at glue changing station A, and the glue supply units 30 at glue changing station A can be operated to replace the film as a backup, for example, replacing the empty film with a new film. When the glue supply unit 30 at glue supply station B needs to replace the film, for example, when the film is exhausted, one or more glue supply units 30 at glue supply station B are switched to glue changing station A, and then one or more glue supply units 30 at glue changing station A that have been replaced with new films are switched to glue supply station B, thereby providing adhesive tape for glue suction head 10; one or more glue supply units 30 switched to glue changing station A can be operated to replace the film as a backup, and this cycle is repeated to achieve non-stop film replacement and improve production efficiency.

[0160] In one example, when any one of the at least two glue supply units 30 is located at the glue supply station B, the remaining glue supply units 30 are located at their respective glue changing stations A.

[0161] The number of glue supply units 30 corresponds to the number of glue changing stations A, that is, the glue supply units 30 correspond one to one with the glue changing stations A. Each glue supply unit 30 can be switched between the glue supply station B and the respective glue changing station A, which facilitates the control of each glue supply unit 30.

[0162] For example, see Figure 1 , two glue supply units 30 and two glue changing stations A are respectively provided, namely, a first glue supply unit 30a and a first glue changing station A1 corresponding to the first glue supply unit 30a, and a second glue supply unit 30b and a second glue changing station A2 corresponding to the second glue supply unit 30b. When the first glue supply unit 30a is located at the glue supply station B to provide adhesive tape for the glue suction head 10, the second glue supply unit 30b is located at the second glue changing station A2 as a standby. When the film roll of the first glue supply unit 30a needs to be replaced, the first glue supply unit 30a is switched from the glue supply station B to the first glue changing station A1, and the second glue supply unit 30b carrying the new film roll is switched from the second glue changing station A2 to the glue supply station B, thereby providing adhesive tape for the glue suction head 10; the first glue supply unit 30a switched to the first glue changing station A1 can replace the film roll as a standby.

[0163] In some embodiments, the glue supply mechanism 3 also includes a slide rail 301 and at least two glue supply driving components 302. Each glue supply unit 30 can be slidably arranged on the slide rail 301. Each glue supply driving component 302 is configured to drive the glue supply unit 30 to slide between the glue changing station A and the glue supply station B respectively.

[0164] Each glue supply unit 30 is driven by an independent glue supply driving member 302 , so that each glue supply unit 30 is controlled separately and the structure is simplified.

[0165] In one example, each glue supply driving member 302 includes a telescopic cylinder, and the telescopic ends of each telescopic cylinder are respectively connected to the glue supply unit 30 .

[0166] The glue supply drive 302 can also be a drive structure such as a hydraulic cylinder, a linear motor, or a combination of a motor and a transmission component. The transmission component can be a belt transmission component, a chain transmission component, a lead screw nut transmission component, or the like.

[0167] In some embodiments, reference Figure 1 and Figure 7 Each glue supply unit 30 includes a glue supply bracket 31, a film installation shaft 32 and a glue feeding mechanism 33. The film installation shaft 32 is respectively arranged on both sides of the glue supply bracket 31 in the third direction y, and the glue feeding mechanism 33 is respectively arranged on both sides of the glue supply bracket 31 in the third direction y.

[0168] Each film installation shaft 32 is used to carry the film, and each glue feeding mechanism 33 is used to respectively transfer the adhesive tape on the film. Thus, each glue supply unit 30 can transfer two adhesive tapes at the same time, so that the glue suction head 10 can suck two adhesive tapes at a time, thereby improving the glue feeding efficiency and further improving the battery production efficiency.

[0169] In some embodiments, the glue feeding mechanism 33 includes a glue pulling mechanism 331, a glue pressing mechanism 332 and a glue cutting mechanism 333. Along the conveying direction of the tape 200, the glue pressing mechanism 332, the glue cutting mechanism 333 and the glue pulling mechanism 331 are arranged in sequence; the glue pulling mechanism 331 is used to pull the tape 200 to unwind, the glue pressing mechanism 332 is used to press the tape 200 in the second direction z, and the glue cutting mechanism 333 is used to cut the tape 200.

[0170] First, the adhesive tape 200 is pulled along the adhesive tape conveying direction (for example, the first direction x) by the glue pulling mechanism 331 so that the adhesive tape 200 is pulled out to a suitable length. Then, the glue pressing mechanism 332 presses the adhesive tape 200 in the second direction z so that the pulled out section of the adhesive tape 200 has a certain tension. Then, the adhesive suction head 10 absorbs the pulled out section of the adhesive tape 200. Finally, the glue cutting mechanism 333 cuts the pulled out section of the adhesive tape 200, and the glue pulling mechanism 331 releases the pulled out section of the adhesive tape 200. Thus, the adhesive suction head 10 absorbs the pulled out section of the adhesive tape 200 and cooperates with the shaping component 20 to bend the adhesive tape 200 and then stick it to the workpiece, thereby automatically completing one glue feeding and gluing operation, thereby improving the battery production efficiency.

[0171] In some embodiments, the glue pulling mechanism 331 includes a clamping cylinder, a clamping claw disposed on the clamping cylinder, and a glue pulling cylinder for driving the clamping cylinder to move. The clamping cylinder is used to drive the clamping claw to clamp and release the tape 200, and the glue pulling cylinder is used to drive the clamping cylinder to move so that the tape 200 is pulled out to a suitable cutting length.

[0172] In some embodiments, the glue pressing mechanism 332 includes a glue pressing cylinder and a pressing block disposed at a driving end of the glue pressing cylinder, and the glue pressing cylinder is used to drive the pressing block to move along the second direction z to press the adhesive tape 200 .

[0173] In some embodiments, the rubber cutting mechanism 333 includes a rubber cutting cylinder and a cutter disposed at a driving end of the rubber cutting cylinder, and the rubber cutting cylinder is used to drive the cutter to move to cut the tape 200 .

[0174] In some embodiments, reference Figure 1 The glue sticking mechanism 1 further includes a movable frame 120, which is connected to the glue sucking head 10 and is used to drive the glue sucking head 10 to move along the first direction x and the third direction y respectively.

[0175] The glue sucking head 10 can reciprocate between the glue supply station B and the glue sticking station along the first direction x, and pass through the shaping channel along the second direction z. Specifically, the glue sucking head 10 moves along the first direction x to the glue supply station B to suck the cut adhesive tape 200, and then returns to the glue sticking station. Then, the glue sucking head 10 passes through the shaping channel along the second direction z, bends and shapes the sucked adhesive tape 200, and sticks it on the workpiece. Thus, the glue sucking head 10 can automatically complete the glue sucking and glue sticking operations, thereby improving production efficiency.

[0176] For example, the movable frame 120 includes a first support frame 121, a second support frame 122, a third driving member and a fourth driving member. The first support frame 121 includes a first guide rail along a first direction x, the second support frame 122 includes a second guide rail extending along a second direction z, the second support frame 122 is slidably connected to the first guide rail, the glue suction head 10 is slidably connected to the second guide rail, the driving end of the third driving member is connected to the second support frame 122, the fourth driving member is arranged on the second support frame 122, and the driving end of the fourth driving member is connected to the glue suction head 10, the third driving member is used to drive the second support frame 122 to move along the first guide rail, thereby driving the glue suction head 10 and the fourth driving member to move along the first direction x together, and the fourth driving member is used to drive the glue suction head 10 to move along the second guide rail in the second direction z.

[0177] The glue supply drive 302 can be a drive structure such as a cylinder, a hydraulic cylinder, a linear motor, etc., or it can be a combination of a motor and a transmission component. The transmission component can be a belt transmission component, a chain transmission component, a screw nut transmission component, etc.

[0178] The present application also provides a method for applying glue, referring to Fig. 9 , used to stick the tape to the workpiece, the gluing method includes:

[0179] S1000: Glue suction step: the glue suction head sucks up the tape;

[0180] S2000: adhesive tape shaping step: the adhesive suction head passes through a shaping channel formed by a spacing space between the first shaping member and the second shaping member, so that two ends of the sucked adhesive tape contact the first shaping member and the second shaping member respectively, thereby bending the two ends of the adhesive tape;

[0181] S3000: Glue sticking step: The glue suction head sticks the tape that has passed through the shaping channel to the workpiece.

[0182] Among them, in the tape shaping step, one of the two end portions of the tape contacts the first shaping piece and passes through the gap between the glue suction head located in the shaping channel and the first shaping piece, and the other end portion of the tape contacts the second shaping piece and passes through the gap between the glue suction head located in the shaping channel and the second shaping piece.

[0183] In S1000 , the glue suction head 10 can generate negative pressure through the negative pressure device to suck the middle part of the adhesive tape 200 , so that the two ends of the adhesive tape 200 extend beyond the two side walls of the glue suction head 10 .

[0184] In S2000, at least one of the glue suction head 10 and the shaping assembly 20 moves toward each other, so that the glue suction head 10 passes through the shaping channel 20a. For example, the shaping assembly 20 can be relatively immobile, and the glue suction head 10 moves close to the shaping assembly 20, so that the glue suction head 10 passes through the shaping channel 20a, and the two ends of the adhesive tape 200 contact the first shaping member 21 and the second shaping member 22 respectively, so that the two ends of the adhesive tape are bent.

[0185] In S3000, when the adhesive suction head 10 passes through the shaping channel 20a, the adhesive tape 200 may be attached to the workpiece while the two ends of the adhesive tape 200 are bent; or the two ends of the adhesive tape 200 may be attached to the workpiece after being bent.

[0186] 8(a) and 8(b), the workpiece takes the electrode assembly 300 of a battery as an example. In the pairing process of the two electrode assemblies, a recessed area is formed between the opposite ends of the two electrode assemblies 300, and the interconnected pole ears 310 of the two electrode assemblies 300 are located in the recessed area. Therefore, the opposite ends of the two electrode assemblies 300 and the connected pole ears 310 together form a roughly U-shaped recessed structure. When pasting the tape 200, if the root of the pole ear is to be completely covered, the tape 200 needs to be shaped into a shape that matches the recessed structure, such as a roughly U-shape.

[0187] The electrode assembly 300 can be located directly below the shaping channel 20a. When the adhesive suction head 10 passes through the shaping channel 20a, the tape 200 can be bent and adhered to the pole ear at the same time. Specifically, while the two ends of the tape 200 are respectively bent in interference contact with the first shaping piece 21 and the second shaping piece 22, the middle part located at the two ends is adhered to the interconnected pole ears 310, and the bent parts of the two ends of the tape 200 are respectively adhered to the opposite end surfaces of the two electrode assemblies 300. When the two ends of the tape 200 are completely separated from the first shaping piece 21 and the second shaping piece 22, the two ends of the tape 200 are also all adhered to the opposite end surfaces of the electrode assembly 300, thereby fully covering the pole ears.

[0188] Thus, through the mutual cooperation between the glue suction head 10 and the shaping assembly 20, the two ends of the tape 200 are respectively contacted with the two shaping members to bend and shape the two ends of the tape 200. The bent and shaped tape 200 can fit more appropriately with the recessed structure of the workpiece, and the adhesion is more reliable, and the production efficiency can be improved and the labor cost can be reduced. In the battery production process, the positions where the two pole ears are connected to each other and the roots of each pole ear are effectively protected, and the pole ear glue operation is automatically completed by the glue sticking device, which improves the glue sticking efficiency, thereby improving the battery production efficiency and reducing the labor cost.

[0189] In some embodiments, reference Fig.10 After the tape shaping step and before the glue sticking step, the glue sticking method further comprises:

[0190] S4000: Adhesive tape bending and holding step: The two ends of the bent adhesive tape are respectively adsorbed through the first side wall suction hole of the first side wall and the second side wall suction hole of the adhesive suction head.

[0191] When the adhesive suction head 10 passes through the shaping channel 20a, the two ends of the adhesive tape 200 are bent toward the first side wall 101 and the second side wall 102 respectively. The two ends of the adhesive tape 200 are adsorbed by the first side wall suction hole 101a and the second side wall suction hole, so that the two ends can be kept in a bent state, thereby reducing or avoiding the risk of the two ends of the adhesive tape 200 sticking to the large surface of the stack and causing the adhesive tape to pull the layer tab 310 and possibly cause tearing.

[0192] In some embodiments, reference Fig.11 The glue sticking method further includes: a glue supplying step, the glue supplying step includes:

[0193] S5100: Switch the glue supply unit of the film roll to be replaced at the glue supply station from the glue supply station to the glue changing station; switch the glue supply unit of the film roll that has been replaced at the glue changing station from the glue changing station to the glue supply station;

[0194] S5200: The glue supply unit at the glue supply station provides adhesive tape to the glue suction head.

[0195] The glue supply unit 30 can be set to at least two. When one or more glue supply units 30 located at the glue supply station B provide adhesive tape for the glue suction head 10, the remaining glue supply units 30 are at the glue changing station A. The glue supply units 30 at the glue changing station A can be replaced with films as a backup, for example, an empty film can be replaced with a new film. When the glue supply unit 30 at the glue supply station B needs to replace the film, for example, when the film is exhausted, one or more glue supply units 30 at the glue supply station B are switched to the glue changing station A, and then one or more glue supply units 30 at the glue changing station A carrying the replaced film are switched to the glue supply station B, thereby providing adhesive tape for the glue suction head 10; the one or more glue supply units 30 switched to the glue changing station A can replace the film as a backup, and this cycle can be repeated to achieve non-stop film replacement and improve production efficiency.

[0196] In some embodiments, reference Fig.12 The steps of the glue supply unit at the glue supply station providing the adhesive tape to the glue suction head include:

[0197] S5210: unwinding the adhesive tape by pulling the adhesive pulling mechanism of the adhesive supply unit at the adhesive supply station;

[0198] S5220: Pressing the adhesive tape by a glue pressing mechanism of a glue supply unit at a glue supply station;

[0199] S5230: Cutting the adhesive tape by means of the adhesive cutting mechanism of the adhesive supply unit at the adhesive supply station.

[0200] The adhesive tape 200 is pulled along the adhesive tape conveying direction (for example, the first direction x) by the adhesive pulling mechanism 331 to stretch the adhesive tape 200 to a suitable length. Then, the adhesive pressing mechanism 332 presses the adhesive tape 200 in the second direction z. Under the combined action of the pulling force of the adhesive pulling mechanism 331 and the pressure of the adhesive pressing mechanism 332, the stretched adhesive tape 200 has a certain tension. Then, the adhesive suction head 10 absorbs the stretched adhesive tape 200. Finally, the stretched adhesive tape 200 is cut by the adhesive cutting mechanism 333. The adhesive pulling mechanism 331 releases the adhesive tape 200. The adhesive suction head 10 absorbs the exposed adhesive tape 200 and cooperates with the shaping component 20 to bend the adhesive tape 200 and then stick it to the workpiece, thereby completing a adhesive sticking operation.

[0201] The embodiment of the present application also provides a battery production line, including: a providing device for providing workpieces; such as the gluing device 100 mentioned above.

[0202] Through the cooperation between the glue suction head 10 and the shaping component 20, the two ends of the tape 200 are respectively contacted with the two shaping pieces to bend and shape the two ends of the tape 200. The bent and shaped tape 200 can fit the recessed structure of the workpiece more adaptably and more securely, and can improve production efficiency and reduce labor costs.

[0203] In some embodiments, the workpiece includes at least two electrode assemblies, the pole ears of two adjacent electrode assemblies are connected to each other, and the pole ears are located in a recessed space between the two adjacent electrode assemblies; the glue suction head is configured such that: the tape passing through the shaping channel is adhered to the pole ears and covers the pole ears.

[0204] During the battery production and manufacturing process, the positions where the two pole ears are connected to each other and the roots of each pole ear are effectively protected, and the pole ear gluing operation is automatically completed through the gluing device, which improves the gluing efficiency, thereby improving the battery production efficiency and reducing labor costs.

[0205] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the technical content.

Claims

1. A gluing device for gluing a tape to a workpiece, characterized in that: The glue sticking device comprises: The adhesive sticking mechanism comprises an adhesive suction head for sucking the adhesive tape, the adhesive suction head comprises two adhesive suction blocks, the two adhesive suction blocks are arranged at intervals along a first direction and are configured to be able to approach or move away from each other along the first direction; A shaping mechanism, comprising a shaping assembly, wherein the shaping assembly comprises a first shaping member and a second shaping member spaced apart along the first direction, wherein the spacing between the first shaping member and the second shaping member constitutes a shaping channel; The shaping assembly further comprises a shaping bracket, a first shaping mounting frame and a second shaping mounting frame, wherein the first shaping member is arranged on the first shaping mounting frame, and the second shaping member is arranged on the second shaping mounting frame. A first elastic member is connected between the shaping bracket and the first shaping mounting frame, and the first elastic member can be extended and retracted along the first direction so that the first shaping member floats along the first direction; and / or a second elastic member is connected between the shaping bracket and the second shaping mounting frame, and the second elastic member can be extended and retracted along the first direction so that the second shaping member floats along the first direction; Wherein, the glue suction head is constructed as follows: it can pass through the shaping channel and make one of the two end portions of the adhesive tape contact with the first shaping piece and pass through the gap between the glue suction head and the first shaping piece in the shaping channel, and the other of the two end portions of the adhesive tape contact with the second shaping piece and pass through the gap between the glue suction head and the second shaping piece in the shaping channel, so that the two end portions of the adhesive tape are bent, and the adhesive tape passing through the shaping channel is adhered to the workpiece during the process of the glue suction head passing through the shaping channel.

2. The glue sticking device according to claim 1, characterized in that: The glue suction head comprises a first side wall and a second side wall located on opposite sides of the first direction; The glue suction head is configured as follows: the glue suction head passes through the shaping channel along a second direction, and the two ends of the tape are bent by the misalignment action between the first side wall and the first shaping member along the second direction and the misalignment action between the second side wall and the second shaping member along the second direction, and the second direction is perpendicular to the first direction.

3. The glue sticking device according to claim 2, characterized in that: The adhesive suction head includes a bottom wall, which is connected to the first side wall and the second side wall. The bottom wall is provided with a bottom wall suction hole, the first side wall is provided with a first side wall suction hole, and the second side wall is provided with a second side wall suction hole. The first side wall suction hole and the second side wall suction hole are respectively used to absorb the two ends of the adhesive tape, and the bottom wall suction hole is used to absorb the portion between the two ends of the adhesive tape.

4. The glue sticking device according to claim 3, characterized in that: The first side wall suction hole, the second side wall suction hole and the bottom wall suction hole are respectively connected to the negative pressure device via a gas channel.

5. The glue sticking device according to any one of claims 2 to 4, characterized in that: The first shaping member includes a first roller that can rotate freely around an axis, and the second shaping member includes a second roller that can rotate freely around an axis. The first roller and the second roller are parallel to each other and located at the same position in the second direction.

6. The glue sticking device according to any one of claims 2 to 4, characterized in that: The first shaping member includes a first shaping plate, and the second shaping member includes a second shaping plate.

7. The glue sticking device according to any one of claims 1 to 4, characterized in that: The shaping bracket is provided with a first guide member, the first guide member extends along the first direction, and the first shaping mounting frame is slidably provided on the first guide member; and / or, The shaping bracket is provided with a second guide member, the second guide member extends along the first direction, and the second shaping mounting frame is slidably provided on the second guide member.

8. The glue sticking device according to claim 2, characterized in that: The shaping mechanism also includes a shaping frame and a shaping drive member arranged on the shaping frame, the driving end of the shaping drive member is connected to the shaping bracket, and the shaping drive member can drive the shaping component to approach or move away from the workpiece along the second direction.

9. The glue sticking device according to any one of claims 2 to 4, characterized in that: At least two groups of the glue suction heads are provided, and two adjacent groups of the glue suction heads are arranged at intervals along a third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction.

10. The glue sticking device according to claim 9, characterized in that: Two adjacent groups of the glue suction heads are configured to be able to approach or move away from each other along the third direction.

11. The adhesive laminating device according to claim 10, characterized in that: The glue sticking mechanism also includes: The glue suction head driving component is used to drive at least one group of glue suction heads to move along the third direction.

12. The glue sticking device according to claim 9, characterized in that: Each group of the glue suction heads includes two glue suction blocks.

13. The glue sticking device according to any one of claims 2 to 4, characterized in that: The glue sticking device also includes: The glue supply mechanism includes at least two glue supply units, each of which is configured to be switchable between a glue changing station and a glue supply station, the glue suction head sucks the adhesive tape cut from the film roll carried by the glue supply unit at the glue supply station, and the glue changing station is used to replace the film roll.

14. The adhesive laminating device according to claim 13, characterized in that: When any one of the at least two glue supply units is located at the glue supply station, the remaining glue supply units are located at their respective glue changing stations.

15. The adhesive laminating device according to claim 14, characterized in that: The glue supply mechanism also includes a slide rail and at least two glue supply driving components. Each of the glue supply units can be slidably arranged on the slide rail, and each of the glue supply driving components is configured to drive the glue supply unit to slide between the glue changing station and the glue supply station.

16. The adhesive laminating device according to claim 13, characterized in that: Each of the glue supply units includes a glue supply bracket, a film installation shaft and a glue feeding mechanism. The film installation shaft is respectively arranged on both sides of the glue supply bracket in the third direction, and the glue feeding mechanism is respectively arranged on both sides of the glue supply bracket in the third direction.

17. The adhesive laminating device according to claim 16, characterized in that: The glue feeding mechanism includes a glue pulling mechanism, a glue pressing mechanism and a glue cutting mechanism. Along the conveying direction of the tape, the glue pressing mechanism, the glue cutting mechanism and the glue pulling mechanism are arranged in sequence; the glue pulling mechanism is used to pull the tape to unwind, the glue pressing mechanism is used to press the tape in the second direction, and the glue cutting mechanism is used to cut the tape.

18. The glue sticking device according to any one of claims 2 to 4, characterized in that: The glue sticking mechanism further includes a movable frame, which is connected to the glue suction head and is used to drive the glue suction head to move along the first direction and the second direction respectively.

19. A method for applying adhesive tape to a workpiece, characterized in that: The glue sticking method comprises: Glue suction step: a glue suction head sucks the adhesive tape; Adhesive tape shaping step: the adhesive suction head passes through the shaping channel, so that the two ends of the sucked adhesive tape contact the first shaping member and the second shaping member respectively, so that the two ends of the adhesive tape are bent, wherein the shaping assembly includes the first shaping member and the second shaping member spaced apart along the first direction, and the spacing space between the first shaping member and the second shaping member constitutes the shaping channel; Glue sticking step: the glue suction head sticks the tape passing through the shaping channel to the workpiece, Wherein, in the glue suction step, the glue suction head includes two glue suction blocks, and the two glue suction blocks are arranged at intervals along the first direction and are configured to be able to approach or move away from each other along the first direction; in the tape shaping step, one end of the two ends of the tape contacts the first shaping member and passes through the gap between the glue suction head and the first shaping member in the shaping channel, and the other end of the two ends of the tape contacts the second shaping member and passes through the gap between the glue suction head and the second shaping member in the shaping channel, and the shaping assembly also includes a shaping bracket, a first shaping mounting frame and a second shaping mounting frame, the first shaping member is arranged on the first shaping mounting frame, the second shaping member is arranged on the second shaping mounting frame, a first elastic member is connected between the shaping bracket and the first shaping mounting frame, and the first elastic member can be retracted along the first direction to make the first shaping member float along the first direction; and / or a second elastic member is connected between the shaping bracket and the second shaping mounting frame, and the second elastic member can be retracted along the first direction to make the second shaping member float along the first direction.

20. The adhesive laminating method according to claim 19, characterized in that: After the tape shaping step and before the glue sticking step, the glue sticking method further includes: The adhesive tape is bent and maintained in a step of respectively sucking two ends of the bent adhesive tape through the first side wall suction hole of the first side wall and the second side wall suction hole of the adhesive suction head.

21. The adhesive laminating method according to claim 19 or 20, characterized in that: The glue application method further comprises: a glue supplying step, wherein the glue supplying step comprises: Switching the glue supply unit of the glue roll to be replaced at the glue supply station from the glue supply station to the glue replacement station; Switching the glue supply unit of the glue changing station where the glue roll has been replaced from the glue changing station to the glue supply station; The glue supply unit located at the glue supply station provides the adhesive tape to the glue suction head.

22. The adhesive laminating method according to claim 21, characterized in that: The glue supply unit at the glue supply station provides the adhesive tape to the glue suction head, including: Unwinding the adhesive tape by pulling the adhesive pulling mechanism of the adhesive supply unit located at the adhesive supply station; Pressing the adhesive tape by means of a glue pressing mechanism of the glue supply unit located at the glue supply station; The adhesive tape is cut by the adhesive cutting mechanism of the adhesive supply unit located at the adhesive supply station.

23. A battery production line, characterized in that: include: A providing device for providing a workpiece; The glue sticking device as claimed in any one of claims 1 to 18.

24. The battery production line according to claim 23, characterized in that: The workpiece includes at least two electrode assemblies, the electrode tabs of two adjacent electrode assemblies are connected to each other, and the electrode tabs are located in a recessed space between the two adjacent electrode assemblies; The adhesive suction head is constructed as follows: the adhesive tape passing through the shaping channel is adhered to the pole ear and covers the pole ear.

Images