Adhesive tape pasting device, adhesive tape pasting system and adhesive tape pasting method

Abstract

The invention discloses a rubberizing device, a rubberizing system and a rubberizing method. The adhesive tape pasting device is used for pasting the adhesive tape separated from the protective film to the surface of the workpiece. The rubberizing device comprises at least one rubberizing wheel set, each rubberizing wheel set comprises an unwinding wheel and a winding wheel which are arranged in a pair, the unwinding wheel and the winding wheel are arranged at intervals in the conveying direction of a workpiece and can rotate around respective rotating shafts, the wheel circumferential face of the unwinding wheel is used for bearing an adhesive tape, and the winding wheel is used for winding a protective film. The adhesive pasting wheel set is arranged in the mode that at least the wheel circumferential face of the unwinding wheel faces a conveying channel allowing the workpieces to pass through, the wheel circumferential face of the unwinding wheel is provided with a part overlapped with the conveying channel in the rotating shaft direction of the unwinding wheel, and the wheel circumferential face of the unwinding wheel is provided with an elastic part. According to the rubberizing device and the rubberizing system, the structure is simple, the space utilization rate is high, energy is saved, the environment is protected, and the production efficiency can be improved. The rubberizing method has the effects of improving the space utilization rate, saving energy, protecting the environment and improving the production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a gluing device, a gluing system and a gluing method. 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 production process of batteries, sometimes it is necessary to place tape on the large surface and side of the battery cells so that the battery cells can be bonded to each other when they are grouped. In addition, the degree of automation in the battery manufacturing process is getting higher and higher. Therefore, how to quickly stick tape on the battery production line is one of the research topics in the industry. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a glue sticking device, a glue sticking system and a glue sticking method which have a simple structure, high space utilization, energy saving and environmental protection and can improve production efficiency.

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

[0006] The first aspect of the present application provides a glue applying device, which is used to apply the adhesive tape separated from the protective film to the surface of the workpiece, and is characterized in that the glue applying device includes at least one glue applying wheel group, each of the glue applying wheel groups includes a unwinding wheel and a winding wheel arranged as a pair, the unwinding wheel and the winding wheel are arranged at intervals along the conveying direction of the workpiece and are configured to be able to rotate around their respective rotation axes, the wheel circumference of the unwinding wheel is used to carry the adhesive tape, and the winding wheel is used to wind up the protective film, and the glue applying wheel group is arranged so that at least the wheel circumference of the unwinding wheel faces a conveying channel for the workpiece to pass through, and the wheel circumference of the unwinding wheel has a portion overlapping with the conveying channel in the direction of the rotation axis of the unwinding wheel, and the wheel circumference of the unwinding wheel has an elastic portion.

[0007] Since the glue sticking device can simultaneously implement glue sticking and film removal on the workpiece surface to be glued by the glue sticking wheel group, the structure is simple and the number of parts is small, which can effectively reduce the difficulty of assembly, reduce assembly time, and save production costs. At the same time, the glue sticking device of the present application occupies less space, which is conducive to improving space utilization.

[0008] In addition, since the circumferential surface of the unwinding wheel with the elastic part overlaps with the transmission channel for the workpiece to pass through in the direction of the rotation axis of the unwinding wheel, the unwinding wheel can rotate under the drive of the workpiece passing through the transmission channel, and there is no need to set up an additional driving device to drive the unwinding wheel to rotate, which further reduces the number of parts of the glue sticking device and reduces the development cost of the equipment, while also being beneficial to energy conservation and environmental protection. In addition, the winding wheel is used to wind up the protective film, so the protective film can be wound up by the winding wheel synchronously with the glue sticking, without spending extra time on recycling the protective film, which is beneficial to improving production efficiency; moreover, the protective film recovered by the winding wheel is continuous and rolled, which can reduce the risk of contamination and damage of the protective film, is beneficial to the recycling of the protective film, and further helps to reduce production costs. In addition, the winding wheel also does not require an additional power source, which is further beneficial to energy conservation and environmental protection.

[0009] In some embodiments, in the overlapping portion, the movement direction of the circumferential surface of the unwinding wheel is consistent with the conveying direction of the workpiece.

[0010] Thus, the workpiece can be conveyed while the surface of the workpiece is glued by the unwinding wheel, so the gluing efficiency is high; moreover, the unwinding wheel rotates driven by the workpiece being conveyed, so no additional power source is required, which is beneficial to energy saving and environmental protection.

[0011] In some embodiments, in the same glue applying wheel set, the rotation direction of the unwinding wheel is the same as the rotation direction of the reeling wheel, and the reeling wheel rotates along with the rotation of the unwinding wheel.

[0012] Thus, the reel can rotate without an additional power source, thus simplifying the structure, saving energy and protecting the environment. Moreover, by setting the rotation direction of the unwinding wheel and the reel, the reel can be rotated by the driving force of the protective film itself, thus simplifying the structure of the rubber-applying wheel group.

[0013] In some embodiments, along the conveying direction of the workpiece, the unwinding wheel is located at a downstream side of the winding wheel.

[0014] Therefore, the glue can be applied synchronously with the conveyance of the workpiece, and the structure is simple and the space occupied is small.

[0015] In some embodiments, the glue wheel group is arranged so that the rotation axis direction of the unwinding wheel is the same as that of the winding wheel, and the circumferential surface of the unwinding wheel and the circumferential surface of the winding wheel are both facing the conveying channel, and a gap is left between the circumferential surface of the winding wheel and the conveying channel.

[0016] Since the unwinding wheel and the reeling wheel have the same rotation axis direction and the circumference of the wheel faces the transmission channel, it is easy to effectively utilize the friction of the workpiece on the unwinding wheel when the workpiece is transmitted, and improve the reliability of the workpiece driving the unwinding wheel. In addition, there is a gap between the circumference of the reeling wheel and the transmission channel, which is conducive to the reeling wheel to smoothly recover the protective film without interfering with the workpiece being transmitted.

[0017] In some embodiments, the circumferential surface of the unwinding wheel is made of an elastic material that can be compressed along the radial direction.

[0018] Since the circumferential surface of the unwinding wheel can be compressed radially, the elastic force of the circumferential surface of the unwinding wheel can increase the abutment force between the circumferential surface and the surface of the workpiece, which helps to increase the friction between the workpiece and the unwinding wheel and helps to firmly bond the tape to the surface of the workpiece.

[0019] In some embodiments, there are multiple rubber-applying wheel groups, and the rubber-applying wheel groups are arranged on at least any one of two opposite sides of the conveying channel.

[0020] Therefore, various rubber laminating positions can be handled by flexibly setting the number and positions of the rubber laminating wheel groups.

[0021] In some embodiments, the number of the rubber-applying wheel groups is two, and the two rubber-applying wheel groups are symmetrically arranged with respect to the conveying channel.

[0022] Since there are two glue-applying wheel groups, glue can be applied to two surfaces of the workpiece to be glued at the same time, thereby improving the glue-applying efficiency and reducing the production cost.

[0023] The second aspect of the present application provides a gluing system, which includes: the gluing device provided in the first aspect of the present application; and a conveyor belt for conveying the workpiece through the conveying channel.

[0024] Since the gluing system is provided with a conveyor belt, the workpiece can be conveyed to the gluing device through the conveyor belt for gluing, so that the conveyor belt plays a certain role in limiting the workpiece, so that the workpiece can be conveyed according to the predetermined motion trajectory, reducing the possibility of the workpiece being offset or deviating from the conveying path during the process of being conveyed to the gluing device, and avoiding the interference of the workpiece with other structures in the production line. In addition, the use of a conveyor belt can convey multiple workpieces at the same time, which is conducive to improving the working efficiency of the gluing system.

[0025] In some embodiments, the conveyor belt includes a clamp for securing the workpiece against movement relative to the conveyor belt.

[0026] Since the conveyor belt includes a clamp, the workpiece can be always fixed on the conveyor belt during transportation on the conveyor belt, thereby reducing the possibility of glue failure caused by displacement, tilting, falling, etc. of the workpiece when passing through the conveying channel, and improving the reliability of the glue system.

[0027] In some embodiments, the adhesive application system further comprises an adhesive tape roll wound into a roll.

[0028] This enables continuous gluing.

[0029] In some embodiments, the adhesive tape roll includes a continuous protective film and adhesive tapes attached to the protective film and cut at equal intervals.

[0030] Thus, adhesive bonding can be continuously performed on a plurality of workpieces without requiring an additional tape cutting device or pausing the conveyance for cutting the tape.

[0031] In some embodiments, the tape comprises a double-sided tape.

[0032] Therefore, it is particularly suitable for scenes where workpieces need to be bonded, such as scenes where battery cells are bonded to each other into groups, and scenes where battery end plates and heat exchange plates are bonded.

[0033] The adhesive tape is applied to the workpiece by the adhesive tape being applied to the workpiece by the adhesive tape being applied to the workpiece during the conveying process.

[0034] Therefore, the glue application on the workpiece surface can be carried out efficiently, and it has the advantages of energy saving and environmental protection.

[0035] In some embodiments, the glue applying method also includes: placing the wound tape roll on the unwinding wheel of each of the glue applying wheel groups, fixing the head end of the continuous protective film in the tape roll on the winding wheel; and aligning and abutting the end of the tape of the tape roll that has been separated from the protective film with a specified position on the surface of the workpiece.

[0036] Thus, the continuous gluing action can be started through simple operation, and the position accuracy of the gluing can be improved.

[0037] In some embodiments, the step of passing the workpiece through the gluing device and being taped includes the step of allowing the workpiece to pass through the gluing device in the conveying channel along a conveyor belt moving in the conveying direction and the workpiece being taped on both sides, wherein the gluing device includes two gluing wheel groups, and the two gluing wheel groups are symmetrically arranged about the conveying channel.

[0038] As a result, the workpiece only needs to pass through the conveying channel once to be taped on both sides, thereby further improving production efficiency.

[0039] In some embodiments, the adhesive tape roll includes a continuous protective film and adhesive tapes attached to the protective film and cut at equal intervals.

[0040] Thus, adhesive bonding can be continuously performed on a plurality of workpieces without requiring an additional tape cutting device or pausing the conveyance for cutting the tape.

[0041] In some embodiments, the tape comprises a double-sided tape.

[0042] Therefore, it is particularly suitable for scenes where workpieces need to be bonded, such as scenes where battery cells are bonded to each other into groups, and scenes where battery end plates and heat exchange plates are bonded.

[0043] In some embodiments, the workpiece includes at least any one of a battery cell, a battery cell array, and a heat exchange plate for a battery.

[0044] This can help improve the production efficiency of the battery manufacturing process, especially the battery grouping process.

[0045] In some embodiments, the step of placing the workpieces on the conveyor belt includes placing a plurality of the workpieces on the conveyor belt end to end, or placing a plurality of the workpieces on the conveyor belt with intervals between them.

[0046] Thus, the workpiece can be placed flexibly according to actual needs.

[0047] Effects of the Invention

[0048] Through the present application, it is possible to provide a glue sticking device, a glue sticking system and a glue sticking method which have a simple structure, high space utilization, energy saving and environmental protection and can improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 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:

[0050] Figure 1 A three-dimensional schematic diagram of the structure of a glue sticking device provided in some embodiments of the present application;

[0051] Figure 2 A schematic plan view of a partial structure of a double-sided tape provided in some embodiments of the present application.

[0052] Figure 3 A three-dimensional schematic diagram of the structure of a gluing system provided in some embodiments of the present application when gluing a battery cell;

[0053] Figure 4 A three-dimensional schematic diagram of the structure of a gluing system provided in some embodiments of the present application when gluing a battery cell queue;

[0054] Figure 5 A three-dimensional schematic diagram of the structure of a gluing system provided in some embodiments of the present application when gluing a heat exchange plate;

[0055] Figure 6 A schematic flow chart of a glue sticking method of a glue sticking system provided in some embodiments of the present application;

[0056] Figure 7 A schematic flow chart of a gluing method of a gluing system provided in some embodiments of the present application.

[0057] Description of Reference Numerals

[0058] 1- glue sticking wheel group; 11- unwinding wheel; 12- rewinding wheel; 13- (unwinding wheel) rotating axis; 14- (rewinding wheel) rotating axis; 2- tape roll; 21- tape; 22- protective film; 3- workpiece; 4- conveyor belt; 5- conveying channel; 100- glue sticking device; 1000- glue sticking system. DETAILED DESCRIPTION

[0059] 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.

[0060] 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 and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] Below, this application is described in detail.

[0068] 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 military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0069] During the production and manufacturing process of batteries, it is usually necessary to provide adhesive tape on the large surface and side surfaces of battery cells so that the battery cells can be bonded to each other when grouped.

[0070] At present, the process of gluing battery cells is usually performed manually or by using a gluing machine.

[0071] The manual gluing method requires the operator to manually stick the tape to the surface of the battery to be glued, and then manually tear off the protective film to complete the gluing process. The manual gluing method may not have the same gluing position each time, and the gluing accuracy and consistency are low, which is not conducive to the assembly of battery cells. In addition, the manual gluing method has low gluing efficiency, which is not conducive to controlling production costs.

[0072] Compared with manual gluing, the gluing accuracy and efficiency of gluing the surface of battery cells by using a gluing machine will be improved. However, traditional gluing machines usually include two processes: gluing and film tearing. Each process uses a gluing robot and a film tearing robot to complete the corresponding gluing and film tearing processes. The gluing robot and the film tearing robot usually need to pause during the operation, and there are a large number of robots, which will cause cross-pause. Therefore, there is still room for further improvement from the perspective of shortening the entire gluing operation time. At the same time, the number of parts of the robot and its supporting transmission elements, control elements, etc. is large, which makes the overall structure of the gluing machine more complicated, occupies a large space, and the energy required to control the operation of these parts is large. Therefore, there is still room for further improvement from the perspective of improving space utilization, energy saving and environmental protection.

[0073] In addition, the protective film torn off by the film-tearing robot is usually in the form of small pieces that are comparable in size to the adhesive area, and even if it is recycled, it is difficult to reuse.

[0074] In view of the problems existing in the above-mentioned related technologies, the present application proposes a glue sticking device, which includes at least one glue sticking wheel group, each glue sticking wheel group includes an unwinding wheel and a reeling wheel arranged as a pair, the unwinding wheel and the reeling wheel are arranged at intervals along the conveying direction of the workpiece, the wheel circumference of the unwinding wheel is used to carry the adhesive tape, and the reeling wheel is used to reel in the protective film. The glue sticking wheel group is arranged so that at least the wheel circumference of the unwinding wheel faces the conveying channel for the workpiece to pass through, and the wheel circumference of the unwinding wheel has a portion overlapping the conveying channel in the direction of the rotation axis of the unwinding wheel, and the wheel circumference of the unwinding wheel has an elastic portion.

[0075] The glue sticking device of the embodiment of the present application replaces the glue sticking manipulator and the film tearing manipulator in the related art by the glue sticking wheel group, and can simultaneously realize the glue sticking and film tearing of the surface to be glued on the workpiece by the glue sticking wheel group, and has a simple structure and a small number of parts, thereby effectively reducing the difficulty of assembly, reducing the assembly time, and saving production costs. At the same time, the glue sticking device of the present application occupies less space, which is conducive to improving space utilization.

[0076] In addition, since the circumferential surface of the unwinding wheel with the elastic part overlaps with the transmission channel for the workpiece to pass through in the direction of the rotation axis of the unwinding wheel, the unwinding wheel can rotate under the drive of the workpiece passing through the transmission channel, and there is no need to set up an additional driving device to drive the unwinding wheel to rotate, which further reduces the number of parts of the glue sticking device and reduces the development cost of the equipment, while also being beneficial to energy conservation and environmental protection. In addition, the winding wheel is used to wind up the protective film, so the protective film can be wound up by the winding wheel synchronously with the glue sticking, without spending extra time on recycling the protective film, which is beneficial to improving production efficiency; moreover, the protective film recovered by the winding wheel is continuous and rolled, which can reduce the risk of contamination and damage of the protective film, is beneficial to the recycling of the protective film, and further helps to reduce production costs. In addition, the winding wheel also does not require an additional power source, which is further beneficial to energy conservation and environmental protection.

[0077] The gluing device of the embodiment of the present application can be used in the battery production process, for example, in the process of gluing the surface of the battery cell before the battery is assembled, for example, it can also be used in the process of gluing the surface of the battery end plate, heat exchange plate, etc. that need to be bonded by tape, etc. 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 various workpieces in the battery production process, but can also be used for gluing any other workpieces that need to be glued.

[0078] Below, refer to Figures 1 to 7 Some embodiments of the present application are described in detail.

[0079] Figure 1 A three-dimensional schematic diagram of the structure of a glue sticking device 100 provided in some embodiments of the present application. Figure 2 A schematic diagram of the partial structure of the double-sided tape provided for some embodiments of the present application. Figure 3 A three-dimensional schematic diagram of the structure of the gluing system 1000 provided in some embodiments of the present application when gluing a battery cell. Figure 4 A three-dimensional schematic diagram of the structure of the gluing system 1000 provided in some embodiments of the present application when gluing a battery cell array. Figure 5 A three-dimensional schematic diagram of the structure of the gluing system 1000 provided in some embodiments of the present application when gluing a heat exchange plate. Figure 6 A schematic flow chart of a glue sticking method of a glue sticking system provided in some embodiments of the present application; Figure 7 A schematic flow chart of a gluing method of a gluing system provided in some embodiments of the present application. Figures 3 to 5 The circular arrow in the figure indicates the rotation direction of the glue sticking wheel set 1 when the glue sticking system 1000 is working, and the straight arrow indicates the conveying direction of the workpiece 3.

[0080] like Figure 1As shown, the embodiment of the present application provides a glue sticking device 100, which is used to stick the adhesive tape 21 separated from the protective film 22 to the surface of the workpiece 3. The glue sticking device 100 includes at least one glue sticking wheel group 1, each glue sticking wheel group 1 includes an unwinding wheel 11 and a rewinding wheel 12 arranged as a pair, the unwinding wheel 11 and the rewinding wheel 12 are arranged at intervals along the conveying direction of the workpiece 3 and are configured to be able to rotate around their respective rotation axes, the wheel circumference of the unwinding wheel 11 is used to carry the adhesive tape 21, and the rewinding wheel 12 is used to rewind the protective film 22, and the glue sticking wheel group 1 is arranged so that at least the wheel circumference of the unwinding wheel 11 faces the conveying channel 5 for the workpiece 3 to pass through, and the wheel circumference of the unwinding wheel 11 has a portion overlapping with the conveying channel 5 in the direction of the rotation axis of the unwinding wheel 11, and the wheel circumference of the unwinding wheel 11 has an elastic portion.

[0081] In the manufacturing process of products such as batteries, sometimes it is necessary to bond workpieces 3 to each other or to bond other parts to workpiece 3. In this case, it is usually necessary to first apply glue to one or more surfaces of workpiece 3 to facilitate bonding. The gluing device 100 of the embodiment of the present application is a device that can continuously peel off the protective film on the tape while continuously applying the tape 21 to the surface of the workpiece 3.

[0082] In the embodiments of the present application, Figure 2 As shown, the tape 21, for example, has a protective film 22. The protective film 22 is an anti-sticking paper that prevents the prepreg from sticking and protects the prepreg from contamination. In an embodiment of the present application, the prepreg is the tape 21. Exemplarily, the protective film 22 can be, for example, a release paper, which can stick to the tape 21 to isolate the tape 21 from the outside and prevent the tape 21 from being attached to other objects when not in use, but the release paper can easily separate the two. When the tape is used, the protective film 22 is usually torn off. In the case where the tape 21 is a double-sided tape, for the double-sided tape 21 wound into a roll and the protective film 22 it carries, a layer of double-sided tape 21 and a layer of protective film 22 adhered to one side of the double-sided tape 21 are wound in a stacked state, so that the adhesive surfaces on both sides of the double-sided tape 21 can be protected by the protective film 22. When in use, the tape 21 with the protective film 22 on one side of the adhesive surface is pulled out to expose the adhesive surface on the other side, and the adhesive surface is pasted on the target adhesive surface and the protective film 22 is torn off to expose the adhesive surface, at which time, it can be bonded to other parts.

[0083] Exemplarily, the tape 21 may be sticky on both sides, one side of the tape 21 is used to be adhered to the surface of a workpiece, and the other side is used to be adhered to the surface of another workpiece or other object to be adhered to the workpiece, thereby achieving bonding between the two.

[0084] As another example, the stickiness of the two sides of the tape 21 can be different, one side has weaker stickiness and the other side has stronger stickiness. The side of the tape 21 with stronger stickiness is used to stick to the surface of a workpiece, and the side with weaker stickiness is used to stick to the surface of another workpiece or other bonded body that needs to be bonded to the workpiece, thereby achieving bonding between the two.

[0085] Of course, the tape 21 is not limited to a double-sided tape, and may be other suitable tapes. For example, the tape 21 may be sticky on only one side (e.g., a label with a sticky back). Such a tape 21 may be retained by the protective film 22, for example, by electrostatic adsorption or other suitable means.

[0086] In addition, the adhesive tape 21 may be a sheet with a certain width, and in the embodiment of the present application, it is a strip shape, but the adhesive tape 21 may also be in other shapes. As long as the purpose of the present application can be achieved, there is no limitation on the shape of the adhesive tape 21.

[0087] In some embodiments of the present application, the workpiece 3 may be, for example, a battery cell, a battery cell array, or a battery heat exchange plate ( Figure 5 Of course, in some other embodiments, the workpiece 3 may also be other workpieces to which the adhesive tape 21 needs to be attached.

[0088] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0089] 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.

[0090] The heat exchange plate in the embodiment of the present application is, for example, a component installed in a battery module, a battery pack, etc. for heat exchange of battery cells, and generally has a heat exchange medium flow path inside. As a specific example, it may be a water cooling plate.

[0091] The gluing device 100 includes at least one gluing wheel set 1, which is used to apply glue to the surface of the workpiece 3. In some embodiments, if the workpiece 3 has multiple surfaces to be glued, that is, multiple surfaces of the workpiece 3 need to be glued, the gluing device 100 can also be provided with multiple gluing wheel sets 1, so that multiple surfaces can be glued at the same time, thereby improving the gluing efficiency of the gluing device 100.

[0092] The glue sticking wheel group 1 includes a pair of unwinding wheels 11 and winding wheels 12, which are arranged at intervals along the conveying direction of the workpiece 3. The interval arrangement means that there is a gap between the unwinding wheels 11 and the winding wheels 12. In this way, when the glue sticking wheel group 1 is working, the unwinding wheels 11 and the winding wheels 12 will not interfere with each other, so that the glue sticking can proceed smoothly.

[0093] The unwinding wheel 11 is, for example, cylindrical, and the circumference of the unwinding wheel 11 is used to carry the adhesive tape 21. In the embodiment of the present application, the adhesive tape 21 is, for example, rolled into a roll and is generally annular, so that it can be sleeved on the circumference of the unwinding wheel 11. In some other embodiments, as long as it does not affect the unwinding of the adhesive tape 21, the adhesive tape 21 can also be set on the circumference of the unwinding wheel 11 by any other suitable method such as bonding. The cylindrical unwinding wheel 11 can rotate around its own axis.

[0094] The circumferential surface of the unwinding wheel 11 has an elastic portion, which includes but is not limited to rubber, foam, etc. Since the circumferential surface of the unwinding wheel 11 has an elastic portion, the circumferential surface of the unwinding wheel 11 can be squeezed and compressed by the workpiece 3, so that the tape 21 carried by the circumferential surface can be firmly bonded to the surface of the workpiece 3 with a certain degree of abutment force, and the movement of the workpiece 3 along the conveying direction will not be interfered with.

[0095] Exemplarily, the unwinding wheel 11 may include a separate elastic portion layer, which is made of an elastic material, is generally annular, and is sleeved on the circumferential surface of the unwinding wheel 11, such as that made of resin or metal, and the elastic portion and the circumferential surface of the unwinding wheel 11 do not move relative to each other, for example, by an adhesive.

[0096] As another example, the unwinding wheel 11 may be made entirely of elastic material.

[0097] The unwinding wheel 11 is mounted on the rotating shaft 13 so as to be immovable in the axial direction of the rotating shaft 13 but rotatable about the axis of the rotating shaft 13. The member constituting the rotating shaft 13 is generally rigid, and may be made of plastic, metal or the like.

[0098] The winding wheel 12 can wind up the protective film 22 synchronously with the adhesive. The winding wheel 12 is also cylindrical and is mounted on the rotating shaft 14 in a manner that it cannot move in the axial direction of the rotating shaft 14 but can rotate around the axis of the rotating shaft 14.

[0099] The gluing device is, for example, held on a frame (not shown in the figure), and the frame can hold the rotating shaft 13 of the unwinding wheel 11 and the rotating shaft 14 of the winding wheel 12 .

[0100] The conveying channel 5 is a channel for the workpiece 3 to be conveyed through, more specifically, it is a space through which the outer contour of the workpiece 3 moves along the conveying direction. The space (conveying channel 5) is located, for example, at the center of the upper side of the conveyor belt, or in the transmission path of the workpiece 3. The circumference of the unwinding wheel 11 faces the conveying channel 5, and the circumference of the unwinding wheel 11 has a portion overlapping with the conveying channel 5 in the direction of the rotation axis of the unwinding wheel 11. The overlapping portion means that when projected along the rotation axis 13 of the unwinding wheel 11, on the projection plane, the projection of the circumference of the unwinding wheel 11 overlaps with the projection of the conveying channel 5. That is, when the workpiece 3 is conveyed through the unwinding wheel 11, it will abut against and compress the circumference of the unwinding wheel 11, thereby driving the unwinding wheel 11 to rotate without relative movement between the workpiece 3 and the circumference of the unwinding wheel 11. While the unwinding wheel 11 rotates, the adhesive tape 21 will be attached to the surface of the workpiece 3, thereby completing the gluing process. In this way, automatic gluing can be achieved without setting up an additional driving device to drive the unwinding wheel 11 to rotate, which not only reduces the number of parts of the gluing device 100, but also simplifies the control process, reduces the development cost of the equipment, and is also beneficial to energy saving and environmental protection.

[0101] The glue sticking device 100 of the present application can simultaneously implement glue sticking and film removal on the surface to be glued of the workpiece 3 through the glue sticking wheel set 1, and has a simple structure and a small number of parts, thereby effectively reducing the difficulty of assembly, reducing assembly time, and saving production costs. At the same time, the glue sticking device 100 of the present application occupies a small space, which is conducive to improving space utilization.

[0102] In addition, since the circumferential surface of the unwinding wheel 11 with the elastic part overlaps with the conveying channel 5 for the workpiece to pass through in the direction of the rotation axis of the unwinding wheel, the unwinding wheel 11 can rotate under the drive of the workpiece 3 passing through the conveying channel 5, and there is no need to set up an additional driving device to drive the unwinding wheel to rotate, which further reduces the number of parts of the glue sticking device and reduces the development cost of the equipment, while also being beneficial to energy conservation and environmental protection. In addition, the winding wheel 12 is used to wind up the protective film 22, so the protective film 22 can be wound up by the winding wheel 12 synchronously with the glue sticking, without spending extra time on recycling the protective film, which is beneficial to improving production efficiency; moreover, the protective film recovered by the winding wheel is continuous and rolled, which is beneficial to the recycling of the protective film 22, further helping to reduce production costs. In addition, the winding wheel also does not require an additional power source, which is further beneficial to energy conservation and environmental protection.

[0103] In some embodiments of the present application, in the overlapping portion, the movement direction of the circumferential surface of the unwinding wheel 11 is consistent with the conveying direction of the workpiece 3 .

[0104] Thus, the workpiece 3 can be conveyed while the surface of the workpiece 3 is glued by the unwinding wheel 11, so the glue sticking efficiency is high. Moreover, the unwinding wheel 11 can rotate under the drive of the workpiece 3 being conveyed, without the need for an additional power source, which is beneficial to energy saving and environmental protection.

[0105] like Figures 3 to 5 As shown, in the same rubber applying wheel set 1 , the rotation direction of the unwinding wheel 11 is the same as the rotation direction of the reeling wheel 12 , and the reeling wheel 12 rotates along with the rotation of the unwinding wheel 11 .

[0106] In the embodiment of the present application, although the protective film 22 can be wound, it has a certain rigidity (specifically, it is not easy to droop along the surface direction of the protective film 22). Therefore, as the unwinding wheel 11 rotates, the protective film 22 is continuously extended. When one end of the protective film 22 is fixed to the circumference of the winding wheel 12, the winding wheel 12 can rotate under the push of the protective film 22, so that the protective film 22 can be wound on its own circumference. In addition, since the unwinding wheel 11 and the winding wheel 12 rotate in the same direction, it is beneficial to rotate the winding wheel 12 with the help of the driving force of the protective film 22 itself.

[0107] Thus, the reel 12 can rotate without an additional power source, thus simplifying the structure, saving energy and protecting the environment. Moreover, by setting the rotation direction of the unwinding wheel 11 and the reel 12, the reel can be rotated by the driving force of the protective film itself, thus simplifying the structure of the adhesive wheel group.

[0108] Of course, in some other embodiments, the winding wheel 12 may also be provided with a driving device, and the driving device drives the winding wheel 12 to rotate, thereby winding up the protective film 22.

[0109] In some embodiments of the present application, along the conveying direction of the workpiece 3 , the unwinding wheel 11 is located at the downstream side of the winding wheel 12 .

[0110] The downstream side refers to the material removal direction of the workpiece 3. Figures 3 to 5 The workpiece 3 first passes through the winding wheel 12 and then passes through the unwinding wheel 11.

[0111] Along the conveying direction of the workpiece 3, the unwinding wheel 11 is located at the downstream side of the winding wheel 12, thereby, the glue can be applied and the film can be torn off synchronously with the conveying of the workpiece 3, and the structure is simple and the space occupied is small.

[0112] Of course, those skilled in the art should understand that in some other embodiments, as long as the unwinding of the adhesive tape 21 and the rewinding of the protective film 22 can be achieved synchronously, the relative positions of the unwinding wheel 11 and the rewinding wheel 12 are not limited to the above-mentioned manner.

[0113] In some embodiments of the present application, the glue wheel group 1 is configured so that the rotation axes of the unwinding wheel 11 and the winding wheel 12 are in the same direction, and the circumferential surfaces of the unwinding wheel 11 and the winding wheel 12 are both facing the transmission channel, and a gap is left between the circumferential surface of the winding wheel 12 and the transmission channel 5.

[0114] Since the rotation axes of the unwinding wheel 11 and the winding wheel 12 are in the same direction and the circumferential surfaces of the wheels are both facing the conveying channel 5, it is easy to effectively utilize the friction force of the workpiece 3 on the unwinding wheel 11 when conveying the workpiece 3, thereby improving the reliability of the workpiece 3 driving the unwinding wheel 11, and is also beneficial to fully utilizing the driving force of the protective film 22 to smoothly rewind the protective film 22.

[0115] In addition, during the gluing process, the reel 12 will continuously reel the protective film 22, so the outer diameter of the circumference of the reel 12 will gradually increase. If the distance between the reel 12 and the surface of the workpiece 3 to be glued is too close, it is likely that after reeling a certain amount of the protective film 22, it will contact the surface of the workpiece 3, thereby affecting the smooth progress of the gluing. Since there is a gap between the circumference of the reel 12 and the transmission channel 5, the circumference of the reel 12 can be configured to never contact the surface of the workpiece 3 to be glued, so as not to affect the normal transmission of the workpiece 3, which is conducive to the reel 12 to smoothly recover the protective film 22 and will not interfere with the workpiece 3 being transmitted, thereby improving the reliability of the gluing device 100.

[0116] In some embodiments of the present application, the circumferential surface of the unwinding wheel 11 is made of an elastic material that can be compressed along the radial direction.

[0117] Since the circumferential surface of the unwinding wheel 11 can be compressed radially, the elastic force of the circumferential surface of the unwinding wheel 11 can increase the abutment force between the circumferential surface and the surface of the workpiece 3, which helps to increase the friction between the workpiece 3 and the unwinding wheel 11 and helps to firmly bond the tape 21 to the surface of the workpiece 3.

[0118] In addition, since the circumferential surface of the unwinding wheel 11 overlaps with the transmission channel 5, when the workpiece 3 is transmitted through the unwinding wheel 11, the circumferential surface of the unwinding wheel 11 is compressed and abuts against the surface of the workpiece 3, and rotates with the workpiece 3, thereby achieving gluing of the surface of the workpiece 3. As the gluing continues, the adhesive tape 21 is continuously reduced, so that the outer diameter of the circumferential surface of the unwinding wheel 11 is also continuously reduced. Since the circumferential surface of the unwinding wheel 11 is made of elastic material, the circumferential surface of the unwinding wheel 11 will continuously release the compression as the outer diameter decreases, so that the circumferential surface of the unwinding wheel 11 can always abut against the surface of the workpiece 3, reducing the possibility of failure of gluing due to the inability of the adhesive tape 21 to contact the surface of the workpiece 3, and improving the reliability of the gluing device 100. At the same time, it also saves the number of parts and reduces production costs.

[0119] Of course, in some other embodiments, the glue laminating device 100 may also be provided with a displacement mechanism, which is connected to the unwinding wheel 11, so as to control the position of the unwinding wheel 11, so that the circumferential surface of the unwinding wheel 11 and the conveying channel 5 always have an overlapping part, that is, the circumferential surface of the unwinding wheel 11 can always be in contact with the surface of the workpiece 3.

[0120] In some embodiments, there are multiple rubber-applying wheel groups 1 , and the rubber-applying wheel groups 1 are disposed on at least any one of two opposite sides of the conveying channel 5 .

[0121] The embodiment of the present application does not specifically limit the number of the rubber-coated wheel set 1. For example, the number of the rubber-coated wheel set 1 can be only one or more. The embodiment of the present application does not specifically limit the number of the rubber-coated wheel set 1, and can be specifically set according to actual use requirements.

[0122] In addition, the embodiment of the present application does not specifically limit the position of the rubber-applying wheel set 1, and the rubber-applying wheel set 1 can be arranged on at least one of the two opposite sides of the conveying channel 5. For example, it can be symmetrically arranged on both sides of the conveying channel 5, or multiple rubber-applying wheel sets 1 can be arranged on one side of the conveying channel 5.

[0123] Of course, in some embodiments, if the surface to be glued on the workpiece 3 is the top surface of the workpiece 3, the glue wheel group 1 can also be located on the top side of the workpiece 3, and the position of the glue wheel group 1 can be specifically set according to the position of the surface to be glued.

[0124] Since the number and position of the glue sticking wheel set 1 can be flexibly set, various glue sticking positions can be handled. For example, even if two or more rows of adhesive tapes 21 need to be stuck on the surface to be glued, the glue sticking device 100 of the embodiment of the present application can complete the process at one time.

[0125] In some embodiments of the present application, the number of the rubber-applying wheel groups 1 is two, and the two rubber-applying wheel groups 1 are symmetrically arranged with respect to the conveying channel 5 .

[0126] In a scenario such as gluing battery cells, sometimes the surfaces to be glued are two large opposite surfaces of the workpiece 3. In this way, the gluing device 100 is provided with two glue-applying wheel groups 1, and the two glue-applying wheel groups 1 are symmetrically arranged about the conveying channel 5. In this way, glue can be applied to the two surfaces to be glued of the workpiece 3 (such as the two large surfaces of the battery cell) at the same time, thereby improving the gluing efficiency and reducing the production cost.

[0127] The circumferential surfaces of the unwinding wheels 11 of the two rubber-applying wheel groups 1 overlap with the conveying channel 5 in the direction of the rotation axis of the unwinding wheels 11, and a gap is formed between the circumferential surfaces of the unwinding wheels 11 of the two rubber-applying wheel groups 1, and an interference fit is formed between the workpiece 3 and the gap.

[0128] An interference fit refers to a fit with interference (including a minimum interference equal to zero), that is, an interference fit occurs when the algebraic difference between the size of the gap and the size of the workpiece 3 is negative in the passing direction perpendicular to the workpiece 3. That is to say, in the embodiment of the present application, in the passing direction perpendicular to the workpiece 3, the size of the workpiece 3 is slightly larger than the size of the gap.

[0129] Since the gap formed between the workpiece 3 and the circumference of the unwinding wheels 11 of the two glue sticking wheel groups 1 produces an interference fit, when the workpiece 3 is conveyed through the two unwinding wheels 11, the circumference of the unwinding wheels 11 can always abut against the surface of the workpiece 3, and the abutment force between the two circumferences and the surface of the workpiece 3 can be increased, which helps to improve the friction between the workpiece 3 and the unwinding wheels 11, and helps to firmly adhere the tape 21 to the surface of the workpiece 3, reducing the possibility of glue sticking failure due to the inability of the tape 21 to contact the surface of the workpiece 3 due to the large gap, and improving the reliability of the glue sticking device 100. In addition, the symmetrical arrangement of the two glue sticking wheel groups 1 helps to keep the position of the workpiece 3 stable and the adhesive force of the tape 21 on both sides uniform.

[0130] As described above, the glue sticking device 100 of some embodiments of the present application can implement glue sticking on the surface of the workpiece 3 through at least one glue sticking wheel set 1, and has a simple structure, is easy to process, and has a small number of parts, thereby reducing the difficulty of assembly, reducing assembly time, saving production costs, and improving production efficiency. At the same time, the glue sticking device 100 of the present application occupies a small space, which is conducive to improving space utilization.

[0131] In addition, the unwinding wheel 11 and the reeling wheel 12 of the glue-applying wheel set 1 do not need to be provided with an additional driving device to drive the rotation thereof. Only when the workpiece 3 passes through, the glue-applying wheel set 1 is driven to rotate by the workpiece 3, thereby further reducing the number of parts of the glue-applying device 100, reducing the development cost of the equipment, and also facilitating energy conservation and environmental protection. The protective film 22 rolled up by the reeling wheel 12 can also be well recovered and repeatedly recycled.

[0132] like Figures 3 to 5 As shown, an embodiment of the present application further provides a gluing system 1000 , which includes a gluing device 100 according to any one of the above embodiments and a conveyor belt 4 , wherein the conveyor belt 4 is used to convey the workpiece 3 through a conveying channel 5 .

[0133] The conveyor belt 4 generally refers to a carrier used to convey materials, for example, it can be a belt-like object such as a belt, or it can be a plurality of rollers arranged side by side, or it can be a plurality of chains, etc. The present application does not particularly limit the composition of the conveyor belt, as long as it can stably and continuously convey materials. In the embodiment of the present application, the material is the workpiece 3 to be glued, such as a battery cell, a battery end plate, a heat exchange plate for a battery, etc. These workpieces 3 can be placed directly on the conveyor belt, or they can be placed on a workpiece pallet or a similar structure. The conveyor belt 4 can be driven by a driving device (not shown), for example, and the driving device includes a power mechanism, and a transmission mechanism for transmitting between the power mechanism and the conveyor belt 4. The transmission mechanism can be, for example, a gear transmission mechanism, a belt transmission mechanism, etc. In addition, a trolley carrying the workpiece can be used instead of the conveyor belt, and the workpiece 3 passes through the transmission channel 5 by the movement of the trolley.

[0134] Since the gluing system 1000 is provided with a conveyor belt 4, the workpiece 3 can be conveyed to the gluing device 100 by the conveyor belt 4 for gluing, so that the conveyor belt 4 plays a certain role in limiting the workpiece 3, so that the workpiece 3 can be conveyed according to a predetermined motion trajectory, reducing the possibility of the workpiece 3 being offset or deviating from the conveying path during the process of being conveyed to the gluing device 100, and avoiding the workpiece 3 from interfering with other structures in the production line. In addition, the use of the conveyor belt 4 can simultaneously convey multiple workpieces 3, which is conducive to improving the working efficiency of the gluing system 1000.

[0135] In the embodiments of the present application, Figure 3 and Figure 4 As shown, the conveyor belt 4 is a linear conveyor belt, which has a regular shape, a simple structure, and is easy to process, which is conducive to reducing production costs. In addition, the linear conveyor belt 4 occupies less space, which is conducive to improving space utilization.

[0136] Of course, those skilled in the art should understand that the embodiment of the present application does not specifically limit the shape of the conveyor belt 4. In some other embodiments, the conveyor belt 4 can also be in any other suitable shape.

[0137] In some embodiments, the conveyor belt 4 includes a clamp (not shown) for fixing the workpiece 3 so as not to move relative to the conveyor belt 4 .

[0138] Since the conveyor belt 4 includes a clamp, the workpiece 3 can be always fixed on the conveyor belt 4 during the process of being conveyed on the conveyor belt 4, thereby reducing the possibility of the workpiece 3 being displaced, tilted, dropped, etc. when passing through the conveying channel 5 and causing the failure of gluing, thereby improving the reliability of the gluing system 1000.

[0139] Exemplarily, the clamp may be an electric clamp, a pneumatic clamp, a hydraulic clamp, or the like.

[0140] Those skilled in the art should understand that the embodiment of the present application does not specifically limit the type of the clamp, as long as the workpiece 3 can be prevented from moving relative to the conveyor belt 4.

[0141] like Figures 3 to 5 As shown, the gluing system 1000 further includes a roll of adhesive tape 2 wound into a roll.

[0142] The adhesive tape roll 2 is placed on the unwinding wheel 11, so that adhesive application can be performed continuously.

[0143] In some embodiments, the adhesive tape roll 2 includes a continuous protective film 22 and adhesive tapes 21 attached to the protective film 22 and cut at equal intervals.

[0144] In the related art, the adhesive tape 21 is usually a continuous and uninterrupted structure. Therefore, the gluing system usually needs to be provided with a cutting device for cutting the adhesive tape after the adhesive tape is attached to the surface of the workpiece to be glued. The cutting device will also have a certain pause time when cutting the adhesive, thereby extending the operation time of the entire gluing system. In addition, the cutter of the cutting device may also have the problem of bluntness and unreliable positioning of the cutter.

[0145] In the embodiment of the present application, the tape 21 is attached to the protective film 22 and is cut at equal intervals, that is, the tape 21 itself is a plurality of tape sections that are disconnected and separated from each other. In this way, the gluing system 1000 can continuously implement gluing on multiple workpieces 6 without the need for an additional tape cutting device or pausing the conveying to cut the tape, thereby saving the glue cutting process, reducing production costs, and avoiding glueing failures caused by glue cutting failures or overflow of the tape 21 on the surface of the workpiece 3, thereby improving the efficiency and success rate of gluing, and improving the stability and reliability of gluing by the gluing device 100.

[0146] In some embodiments, the tape 21 comprises a double-sided tape.

[0147] Therefore, the gluing system 1000 is particularly suitable for scenarios where workpieces need to be bonded, such as scenarios where battery cells are bonded to each other into groups, and scenarios where battery end plates and heat exchange plates are bonded.

[0148] like Figure 6 As shown, the embodiment of the present application also provides a method for gluing the tape 21 separated from the protective film 22 to the surface of the workpiece 3, and the gluing method includes the following steps:

[0149] S100 : placing the workpiece 3 on the conveyor belt 4 .

[0150] The workpiece 3 can be clamped and fixed on the conveyor belt 4 by a clamp so that the workpiece 3 does not move relative to the conveyor belt 4, thereby ensuring that the workpiece 3 is always fixed on the conveyor belt 4 during the process of being conveyed on the conveyor belt 4, thereby reducing the possibility of failure of gluing caused by displacement, tilting, falling, etc. of the workpiece 3 on the conveyor belt 4.

[0151] S200 : The conveyor belt 4 moving along the conveying direction causes the workpiece 3 to pass through the gluing device 100 in the conveying passage 5 and be glued with the adhesive tape 21 .

[0152] Therefore, the surface of the workpiece 3 can be glued efficiently, and it has the advantages of energy saving and environmental protection.

[0153] The glue sticking device 100 includes at least one glue sticking wheel group 1, each glue sticking wheel group 1 includes an unwinding wheel 11 and a rewinding wheel 12 arranged as a pair, the unwinding wheel 11 and the rewinding wheel 12 are arranged at intervals along the conveying direction of the workpiece 3, the wheel circumference of the unwinding wheel 11 is used to carry the adhesive tape 21, and the rewinding wheel 12 is used to rewind the protective film 22. The glue sticking wheel group 1 is arranged so that at least the wheel circumference of the unwinding wheel 11 faces the conveying channel 5 for the workpiece 3 to pass through, and the wheel circumference of the unwinding wheel 11 has a portion overlapping with the conveying channel 5 in the direction of the rotation axis of the unwinding wheel 11, and the wheel circumference of the unwinding wheel 11 has an elastic portion.

[0154] In addition, in some embodiments, Figure 7 As shown, the gluing method further comprises the following steps:

[0155] S300 : placing the wound adhesive tape roll 2 on the unwinding wheel 11 of each adhesive application wheel group 1 , and fixing the head end of the continuous protective film 22 in the adhesive tape roll 2 on the rewinding wheel 12 .

[0156] Exemplarily, the head end of the protective film 22 can be fixed to the winding wheel 12 by, for example, gluing. Of course, the head end of the protective film 22 can also be fixed to the winding wheel 12 in any other suitable manner.

[0157] S400 : The end of the tape 21 of the tape roll 2 separated from the protective film 22 is aligned with a predetermined position on the surface of the workpiece 3 and brought into contact with it.

[0158] For example, the end of the adhesive tape 21 may be manually aligned with and brought into contact with a predetermined position on the surface of the workpiece 3 .

[0159] As another example, an additional detection mechanism or positioning mechanism may be provided to align and abut the end of the tape 21 with a specified position on the surface of the workpiece 3 by means of sensor detection or camera addressing.

[0160] The above steps can be used to start a continuous gluing action through simple operations, and the position accuracy of the gluing can be improved.

[0161] In some embodiments, the step of passing the workpiece 3 through the gluing device 100 and being pasted with the tape 21 includes the step of allowing the workpiece 3 to pass through the gluing device 100 in the conveying channel 5 along the conveying belt 4 moving in the conveying direction and the workpiece 3 is double-sidedly pasted with the tape 21, wherein the gluing device 100 includes two gluing wheel groups 1, and the two gluing wheel groups are symmetrically arranged about the conveying channel 5.

[0162] Therefore, the workpiece 3 only needs to pass through the conveying channel 5 once to have the adhesive tape 21 attached to both sides, thereby further improving the production efficiency.

[0163] In some embodiments, the adhesive tape roll 2 includes a continuous protective film 22 and adhesive tapes 21 attached to the protective film 22 and cut at equal intervals.

[0164] Thus, the adhesive bonding can be continuously performed on a plurality of workpieces 3 without requiring an additional tape cutting device or pausing the conveyance for cutting the tape.

[0165] In some embodiments, the tape 21 comprises a double-sided tape.

[0166] Therefore, the gluing method of the embodiment of the present application is particularly suitable for scenarios where workpieces need to be bonded, such as scenarios where battery cells are bonded to each other into groups, and scenarios where battery end plates and heat exchange plates are bonded.

[0167] In some embodiments, the workpiece 3 includes at least any one of a battery cell, a battery cell array, and a heat exchange plate for a battery.

[0168] The battery cell queue referred to herein refers to a queue formed by two or more battery cells arranged in an array.

[0169] This can help improve the production efficiency of the battery manufacturing process, especially the battery grouping process.

[0170] In some embodiments, the step of placing the workpieces 3 on the conveyor belt 4 includes placing a plurality of workpieces 3 end to end on the conveyor belt 4 , or placing a plurality of workpieces 3 on the conveyor belt 4 with intervals between them.

[0171] like Figure 3 , Figure 5As shown, the workpiece 3 (such as a battery cell) can be placed on the conveyor belt with the adhesive surface facing the adhesive wheel group 1, and there is a gap between each workpiece 3. When each workpiece 3 passes through the conveying channel 5, the corresponding workpiece 3 drives the unwinding wheel 11 to rotate and is adhesively bonded. Since the gaps between the workpieces 3 do not apply friction to the unwinding wheel 11, they will not cause unnecessary rotation of the unwinding wheel 11, and will not cause misalignment of the adhesive bonding of subsequent workpieces. In this case, the accuracy requirements for the placement of the workpiece 3 on the conveyor belt are relatively low.

[0172] In addition, if Figure 4 As shown, the workpieces 3 (e.g., battery cells) can also be placed on the conveyor belt with the adhesive surface facing the adhesive wheel set 1, and the workpieces 3 are connected to each other first to form a queue (e.g., a battery cell queue). In this case, the workpieces 3 can be glued continuously, which helps to further improve the glue efficiency. In addition, gaps can be left between the battery cell queues.

[0173] Thus, the workpiece can be placed flexibly according to actual needs.

[0174] Specific examples of some embodiments of the present application are described below with reference to the accompanying drawings.

[0175] As a specific example, for example, a double-sided tape 21 is pasted on the surface of a battery cell. The battery cell is loaded by a mechanism not shown in the figure, and the battery cell is installed and clamped on the conveyor belt 4. The conveyor belt 4 moves to transport the battery cell to the gluing device 100 (also called "unloading"). The gluing device 100 tears off the protective film 22 on the double-sided tape while pasting the double-sided tape 21 on both sides of the battery cell. The protective film 22 is reeled up and recovered by the reel 12.

[0176] Thus, by adjusting the relative positions of the film tearing turntable (winding wheel 12) and the film sticking turntable (unwinding wheel 11) on both sides of the battery cell and the auxiliary transmission of the simple conveyor belt 4, Figure 3 , Figure 4 The glue sticking system shown in the figure can realize the functions of sticking double-sided tape and tearing off protective film on both sides of battery cells, battery cell queues, water-cooled plates used as heat exchange plates, etc., which improves the flexibility of the equipment and the ability to change workpieces, improves the grouping efficiency, and greatly reduces the equipment cost.

[0177] Moreover, if Figure 2 As shown, since the equidistant intermittent roll double-sided adhesive material is used, the cost is low, and the roll material is easy to load, and no complex assembly mechanism is required. The assembly can be achieved by assembling the roll core and the film-applying turntable (unwinding wheel 11) and the rotating shaft (rotating shaft 13 of the unwinding wheel). Moreover, the intermittent separation roll double-sided adhesive can realize roll-type loading and sheet-type film application, and the degree of automation is improved.

[0178] In addition, the double-sided adhesive tape can be applied by rotating the film-applying turntable (unwinding wheel 11), replacing the cumbersome material-receiving and -releasing action mechanism and related sensing and control components of the existing film-applying robot, thereby reducing the equipment cost. Moreover, the film-applying action of the workpiece of the film-applying device is similar to the bonding of gear racks, the rolling film-applying position has high accuracy, and the bonding effect of the double-sided adhesive tape and the workpiece interface is better.

[0179] Furthermore, the film tearing can be automatically realized by the rotation function of the film tearing turntable (winding wheel 12), replacing the cumbersome material retracting and releasing action mechanism and related sensor and control components of the existing film tearing manipulator, and the equipment cost is reduced. Moreover, the whole roll of double-sided adhesive protective film can be recycled online in a neat and fast manner, avoiding contact contamination and damage. The recycled double-sided adhesive protective film can be recycled repeatedly, reducing the cost of incoming materials.

[0180] In the specific embodiment of the present application, a simple conveyor belt is used. The simple conveyor belt 4 is linear, regular in shape, and short in route, which can reduce the equipment development cost and the workshop floor space. Moreover, the simple conveyor belt 4 can be equipped with corresponding clamping elements according to the size of the battery cell, battery cell assembly, and water cooling plate, which can achieve rapid changeover and high flexibility.

[0181] 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 claims and 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 claims.

Claims

1. A gluing device for gluing a tape separated from a protective film to a surface of a workpiece, characterized in that: The glue sticking device comprises at least one glue sticking wheel group, each of which comprises an unwinding wheel and a winding wheel arranged as a pair, the unwinding wheel and the winding wheel are arranged at intervals along the conveying direction of the workpiece and are configured to be rotatable around their respective rotation axes, the wheel circumference of the unwinding wheel is used to carry the adhesive tape, and the winding wheel is used to wind up the protective film, The rubber-applying wheel group is arranged so that at least the circumferential surface of the unwinding wheel faces a conveying channel through which the workpiece passes, and the circumferential surface of the unwinding wheel has a portion overlapping with the conveying channel in the direction of the rotation axis of the unwinding wheel, and the circumferential surface of the unwinding wheel has an elastic portion.

2. The glue sticking device according to claim 1, characterized in that: In the overlapping portion, the movement direction of the circumferential surface of the unwinding wheel is consistent with the conveying direction of the workpiece.

3. The glue sticking device according to claim 1 or 2, characterized in that: In the same rubber applying wheel set, the rotation direction of the unwinding wheel is the same as the rotation direction of the reeling wheel, and the reeling wheel rotates along with the rotation of the unwinding wheel.

4. The glue sticking device according to any one of claims 1 to 3, characterized in that: Along the conveying direction of the workpiece, the unwinding wheel is located at the downstream side of the winding wheel.

5. The glue sticking device according to any one of claims 1 to 4, characterized in that: The glue-applying wheel set is arranged so that the rotation axes of the unwinding wheel and the winding wheel are in the same direction, and the circumferential surfaces of the unwinding wheel and the winding wheel are both facing the conveying channel, and a gap is left between the circumferential surface of the winding wheel and the conveying channel.

6. The glue sticking device according to any one of claims 1 to 5, characterized in that: The wheel circumference of the unwinding wheel is made of an elastic material that can be compressed along the radial direction.

7. The glue sticking device according to any one of claims 1 to 6, characterized in that: There are multiple rubber-applying wheel groups, and the rubber-applying wheel groups are arranged on at least any one side of two opposite sides of the conveying channel.

8. The glue sticking device according to claim 7, characterized in that: The number of the rubber-applying wheel groups is two, and the two rubber-applying wheel groups are symmetrically arranged with respect to the conveying channel.

9. A glue application system, characterized in that: include: The glue sticking device according to any one of claims 1 to 8; and A conveyor belt is used to convey the workpiece through the conveying channel.

10. The glue application system according to claim 9, characterized in that: The conveyor belt includes a clamp for securing the workpiece against movement relative to the conveyor belt.

11. The glue application system according to claim 9 or 10, characterized in that: Also included are rolls of tape wound into rolls.

12. The glue application system according to claim 11, characterized in that: The adhesive tape roll includes a continuous protective film and adhesive tapes attached to the protective film and cut at equal intervals.

13. The glue application system according to any one of claims 9 to 12, characterized in that: The adhesive tape comprises a double-sided adhesive tape.

14. A method for gluing a tape separated from a protective film to a surface of a workpiece, characterized in that: The method comprises: The step of placing the workpiece on a conveyor belt; and The step of applying tape to the workpiece by causing the workpiece to pass through a gluing device in a conveying channel while a conveyor belt moving along a conveying direction is applied, wherein the gluing device comprises at least one gluing wheel group, each of the gluing wheel groups comprises a unwinding wheel and a winding wheel arranged as a pair, the unwinding wheel and the winding wheel being arranged at intervals along the conveying direction of the workpiece, the circumferential surface of the unwinding wheel being used for carrying the tape, and the winding wheel being used for winding up the protective film, the gluing wheel group being arranged so that at least the circumferential surface of the unwinding wheel faces the conveying channel through which the workpiece passes, and the circumferential surface of the unwinding wheel has a portion overlapping with the conveying channel in the direction of the rotation axis of the unwinding wheel, and the circumferential surface of the unwinding wheel has an elastic portion.

15. The adhesive laminating method according to claim 14, characterized in that: Also includes: The steps of placing the wound adhesive tape roll on the unwinding wheel of each adhesive application wheel group, and fixing the head end of the continuous protective film in the adhesive tape roll on the rewinding wheel; and A step of aligning and bringing an end portion of the tape of the tape roll that has been separated from the protective film into contact with a predetermined position of the surface of the workpiece.

16. The adhesive laminating method according to claim 14 or 15, characterized in that: The step of having the workpiece taped by the gluing device comprises the step of having the workpiece taped on both sides by a conveyor belt moving along the conveying direction so that the workpiece passes through the gluing device in the conveying channel, wherein the gluing device comprises two gluing wheel groups, and the two gluing wheel groups are symmetrically arranged with respect to the conveying channel.

17. The adhesive laminating method according to claim 15 or 16, characterized in that: The adhesive tape roll includes a continuous protective film and adhesive tapes attached to the protective film and cut at equal intervals.

18. The adhesive laminating method according to claim 17, characterized in that: The adhesive tape is a double-sided adhesive tape.

19. The method for gluing according to any one of claims 14 to 18, characterized in that: The workpiece includes at least any one of a battery cell, a battery cell array, and a heat exchange plate for a battery.

20. The method for gluing according to any one of claims 14 to 19, characterized in that: The step of placing the workpieces on the conveyor belt includes placing a plurality of the workpieces on the conveyor belt end to end, or placing a plurality of the workpieces on the conveyor belt with intervals between them.

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