Adhesive application device, adhesive application method and battery production line

Abstract

An adhesive application device, an adhesive application method and a battery production line. The adhesive application device comprises a positioning mechanism and a sheet bonding mechanism (200). The positioning mechanism is used for positioning a sheet (100), the sheet (100) having an exposed first bonding surface. The sheet bonding mechanism (200) is used for picking up the sheet (100) positioned by the positioning mechanism and adhering the sheet (100) to a target position of a part on which adhesive application is to be performed. The positioning mechanism comprises a base (1), a bearing platform (2) and a pushing assembly; the bearing platform (2) is arranged on the base (1) and is used for bearing the sheet, the first bonding surface of the sheet being in contact with a bearing surface of the bearing platform (2); the bearing platform (2) is provided with an anti-bonding structure, and the bearing surface of the bearing platform (2) at least comprises a bearing surface of the anti-bonding structure; and the pushing assembly is arranged on the base (1) and is configured to, under the driving of a driving device, push the sheet (100) along a first direction and a second direction intersecting the first direction so as to position the sheet (100).

Description

Glue pasting device, glue pasting method and battery production line

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on the Chinese patent application with application number 202410090142.5, application date January 23, 2024, and invention name “Gluing device, glueing method and battery production line”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into the present disclosure as a reference. Technical Field

[0003] The present disclosure 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

[0004] New energy batteries are increasingly being used in everyday life and industry. For example, battery-powered new energy vehicles are already widely used. Furthermore, batteries are increasingly being used in energy storage and other fields. In new energy vehicles, batteries can provide full or partial power. In energy storage, batteries can be installed in energy storage boxes or directly at the user's side.

[0005] A battery module is composed of multiple battery cells. The assembly accuracy of the battery module plays an important role in the performance and safety of the battery product. During the battery assembly process, it is sometimes necessary to stick double-sided tape and thermal insulation pads. Improving the accuracy of the sticking is an important part of improving the assembly accuracy of the battery module.

[0006] Furthermore, battery production lines typically produce a variety of battery modules, leading to increased compatibility within the industry. Improving the compatibility of the bonding process can help improve this compatibility. Therefore, improving the compatibility of the bonding process without compromising bonding accuracy is a key research topic within the industry.

[0007] Summary of the Invention

[0008] In order to solve the above technical problems, the present disclosure provides a gluing device, a gluing method and a battery production line for improving the assembly accuracy of a battery module.

[0009] The present disclosure is achieved through the following technical solutions.

[0010] The first aspect of the present disclosure provides a gluing device, comprising: a positioning mechanism for positioning a sheet, the sheet having an exposed first adhesive surface; and a sheet pasting mechanism for picking up the sheet positioned by the positioning mechanism and pasting the sheet to a target position of a component to be glued, wherein the positioning mechanism comprises: a base; a carrying platform, arranged on the base, for carrying the sheet, the first adhesive surface of the sheet is in contact with the carrying surface of the carrying platform, the carrying platform is provided with an anti-sticking structure, and the carrying surface of the carrying platform at least includes the carrying surface of the anti-sticking structure; a pushing component, the pushing component is arranged on the base, and is configured to be able to push the sheet along a first direction and a second direction intersecting the first direction under the drive of a driving device to position the sheet; the anti-sticking structure comprises a plurality of anti-sticking protrusions, and the plurality of anti-sticking protrusions are arranged at intervals from each other.

[0011] When using the gluing device for gluing, a sheet with one side of the release paper torn off is placed on the carrying surface of the carrying table, and the first adhesive surface exposed due to the removal of the release paper contacts the carrying surface. The pushing component pushes the sheet along a first direction and a second direction intersecting the first direction under the drive of the driving device to position the sheet. After the positioning is completed, the sheet pasting mechanism picks up the sheet from the carrying surface and pastes the sheet to the target position. During the gluing process, the positioning mechanism is used to position the sheet once, which improves the position accuracy of the sheet during the gluing process, thereby helping to improve the gluing accuracy of the sheet.

[0012] Furthermore, the pushing component positions the sheet by pushing the sheet. Therefore, the pushing component can position sheets of different sizes by changing the pushing stroke, thereby improving the compatibility of the pasting process without reducing the pasting accuracy.

[0013] In addition, the supporting platform is provided with an anti-sticking structure, which reduces the degree of adhesion between the first adhesive surface and the supporting surface, facilitates the picking and removing action of the sheet pasting mechanism, and prevents the adhesion of the first adhesive surface and the supporting surface from affecting the viscosity of the first adhesive surface.

[0014] There are multiple anti-sticking protrusions, which are arranged at intervals from each other, further reducing the contact area between the carrying surface and the first adhesive surface, further reducing the degree of adhesion between the first adhesive surface and the carrying surface, facilitating the picking and removing action of the sheet pasting mechanism, and preventing the adhesion of the first adhesive surface from being affected by the adhesion between the first adhesive surface and the carrying surface.

[0015] In some embodiments, the anti-sticking protrusions are in a strip-shaped structure, and a plurality of the strip-shaped structures are parallel to each other and are distributed on the supporting platform at equal intervals.

[0016] The strip structure is a structure extending in a straight line direction. A plurality of the strip structures are parallel to each other and are distributed at equal intervals. The anti-sticking protrusions have a stable and uniform supporting effect on the sheet.

[0017] In some embodiments, the anti-sticking structure includes an anti-sticking layer, and the anti-sticking layer is attached to the carrying surface of the carrying platform.

[0018] The anti-sticking layer can prevent the first adhesive surface and the carrying surface from adhering to each other, facilitate the picking up and removing action of the sheet pasting mechanism, and prevent the adhesion of the first adhesive surface and the carrying surface from affecting the viscosity of the first adhesive surface.

[0019] In some embodiments, the release layer comprises a release coating.

[0020] An anti-stick coating is formed by spraying an anti-stick coating on the carrying surface of the carrying platform to prevent the first adhesive surface and the carrying surface from sticking together, thereby facilitating the picking and removing action of the sheet pasting mechanism and preventing the adhesion of the first adhesive surface to the carrying surface from affecting the stickiness of the first adhesive surface.

[0021] In some embodiments, the anti-stick coating comprises at least one of polytetrafluoroethylene, polyvinyl acetate, polyethylene and silicone.

[0022] The anti-stick coating formed by the above material has good anti-stick effect, preventing the first adhesive surface and the carrying surface from sticking together, facilitating the picking and removing action of the sheet pasting mechanism, and preventing the adhesion of the first adhesive surface and the carrying surface from affecting the stickiness of the first adhesive surface.

[0023] In some embodiments, the supporting platform also includes a first reference plane extending along the first direction and a second reference plane extending along the second direction, the plane where the first reference plane is located and the plane where the second reference plane is located intersect at a corner of the supporting platform, and the pushing component is configured to push the sheet toward the first reference plane and / or the second reference plane so that the sheet abuts against the first reference plane and / or the second reference plane.

[0024] When simultaneously positioning in two directions, since the plane containing the first and second reference planes intersects a corner of the support platform, once positioning in both the first and second directions is complete, the sheet is pushed to that corner of the support platform, achieving precise positioning. The provision of the first and second reference planes enables positioning of the sheet in two directions, improving its positioning accuracy. Furthermore, for sheets of different sizes, positioning at this corner of the support platform helps improve the alignment accuracy between the sheet and the target location, thereby enhancing the compatibility of the pasting process without compromising pasting accuracy.

[0025] In some embodiments, the supporting platform is provided with at least one; the pushing component includes a first direction pushing component and a second direction pushing component, and each supporting platform is provided with a first direction pushing component and a second direction pushing component.

[0026] The first direction pushing component pushes the sheet in the first direction to position the sheet in the first direction; the second direction pushing component pushes the sheet in the second direction to position the sheet in the second direction, thereby positioning the sheet on each supporting platform in two directions and improving the positioning accuracy of each sheet.

[0027] In some embodiments, the first direction pushing component includes: a first pushing member, used to contact the sheet material and push the sheet material along the first direction; and a first connecting member, connected to the first pushing member, provided on the base and capable of moving along the first direction under the drive of the first direction driving device to push the first pushing member; the second direction pushing component includes: a second pushing member, used to contact the sheet material and push the sheet material along the second direction; and a second connecting member, connected to the second pushing member, provided on the base and capable of moving along the second direction under the drive of the second direction driving device to push the second pushing member.

[0028] In this way, the function of the first-direction pushing component to push the sheet material along the first direction and the function of the second-direction pushing component to push the sheet material along the second direction are achieved.

[0029] In some embodiments, there are multiple supporting platforms, and the multiple supporting platforms are arranged at intervals along the first direction. The first connecting members of each first direction pushing component are connected to each other to form a first connecting plate, and the first connecting plate is connected to the output end of the first direction driving device; the second connecting members of each second direction pushing component are connected to each other to form a second connecting plate, and the second connecting plate is connected to the output end of the second direction driving device.

[0030] The plurality of first pushers are connected to the output end of the first direction driving device through the first connecting plate, so that one first direction driving device drives the plurality of first pushers to move at the same time, thereby improving positioning efficiency.

[0031] In some embodiments, the gluing device further includes a control module, which determines the respective pushing strokes of the first pushing member and the second pushing member according to the size of the sheet, and controls the first pushing member and the second pushing member to move with their respective pushing strokes.

[0032] The setting of the control module realizes the automatic control of the switching of the pushing strokes of the first pushing member and the second pushing member, so that the first pushing member and the second pushing member move with their respective determined pushing strokes, thereby being able to position sheets of various sizes.

[0033] In some embodiments, elastic buffer pads are provided on the first pushing member and the second pushing member, and the elastic buffer pads are used to contact the sheet material.

[0034] The provision of the elastic buffer pad prevents the first pushing member and the second pushing member from directly contacting the sheet material and damaging the sheet material, thereby playing a role in protecting the sheet material.

[0035] In some embodiments, one of the first connecting plate and the base is provided with a first slide rail, and the other is provided with a first slider, the first slide rail extends along the first direction, and the first slider is slidably connected to the first slide rail; one of the second connecting plate and the base is provided with a second slide rail, and the other is provided with a second slider, the second slide rail extends along the second direction, and the second slider is slidably connected to the second slide rail.

[0036] The cooperation between the first slide rail and the first slider guides the movement of the first connecting plate in the first direction, thereby improving the stability of the movement of the first connecting plate. The cooperation between the second slide rail and the second slider guides the movement of the second connecting plate in the second direction, thereby improving the stability of the movement of the second connecting plate.

[0037] In some embodiments, the supporting platform is provided with a first avoidance groove extending along the first direction and a second avoidance groove extending along the second direction. The first avoidance groove and the second avoidance groove are respectively opened on the side of the supporting platform. The first pushing member can extend into the first avoidance groove, and the second pushing member can extend into the second avoidance groove.

[0038] The provision of the first avoidance groove prevents the supporting platform from affecting the pushing range of the first pusher. Therefore, the first avoidance groove allows the first pusher to have a larger pushing range in the first direction, thereby enabling it to be used to position sheets of different sizes in the first direction, improving the compatibility of the gluing device. Furthermore, the provision of the second avoidance groove prevents the supporting platform from affecting the pushing range of the second pusher. Therefore, the second avoidance groove allows the second pusher to have a larger pushing range in the second direction, thereby enabling it to be used to position sheets of different sizes in the second direction, improving the compatibility of the gluing device.

[0039] In some embodiments, the sheet material pasting mechanism includes an adsorption device, which adsorbs the positioned sheet material from the carrying platform and adheres the sheet material to the target position of the component to be glued.

[0040] The adsorption device realizes the picking, alignment and pasting of the sheet, completing the gluing operation.

[0041] In some embodiments, the sheet material includes a thermal insulation pad, and the component to be glued includes a battery cell.

[0042] The gluing device provided by the embodiment of the present disclosure is applied to the pasting operation of battery cells and thermal insulation pads. Specifically: the thermal insulation pad with one side of the release paper torn off is placed on the supporting surface of the supporting platform, and the first adhesive surface exposed due to the tearing off of the release paper contacts the supporting surface, and the pushing component pushes the thermal insulation pad along the first direction and the second direction intersecting the first direction under the drive of the driving device to position the thermal insulation pad. After the positioning is completed, the sheet pasting mechanism picks up the thermal insulation pad from the supporting surface and pastes the thermal insulation pad to the side wall of the battery cell. During the pasting process, the thermal insulation pad is positioned once by the positioning mechanism, which improves the position accuracy of the thermal insulation pad during the pasting process, thereby facilitating the improvement of the alignment accuracy of the thermal insulation pad and the battery cell, and further improving the pasting accuracy of the thermal insulation pad. In addition, the pushing component positions the thermal insulation pad by pushing the thermal insulation pad. Therefore, the pushing component can position thermal insulation pads of different sizes by changing the pushing stroke, thereby improving the compatibility of the thermal insulation pad pasting process without reducing the pasting accuracy.

[0043] The second aspect of the present disclosure provides a gluing method, which uses a gluing device to stick a sheet to a component to be glued, the sheet having a first adhesive surface exposed by a release paper being torn off, the gluing device comprising a positioning mechanism and a sheet sticking mechanism, the positioning mechanism comprising a base, a supporting platform and a pushing component, the supporting platform being provided with an anti-sticking structure, the supporting surface of the supporting platform at least comprising the supporting surface of the anti-sticking structure, the anti-sticking structure comprising a plurality of anti-sticking protrusions, and the plurality of anti-sticking protrusions being arranged at intervals from each other, the gluing method comprising: a placing step, placing the sheet on the supporting platform with the first adhesive surface facing the anti-sticking protrusions on the supporting surface of the supporting platform; a pushing stroke determining step, determining the pushing stroke of the pushing component in the first and second directions according to the size of the sheet; and a pushing step, a driving device driving the pushing component to move with the pushing stroke to push the sheet along the first and second directions.

[0044] During the gluing process, the positioning mechanism provides a primary positioning of the sheet, improving the accuracy of the sheet's position during gluing, thereby facilitating greater alignment between the sheet and the target location. Furthermore, the pushing strokes of the pushing assembly in the first and second directions are determined based on the size of the sheet, enabling the gluing device to position sheets of varying sizes and enhancing its compatibility.

[0045] In some embodiments, the gluing method further includes: a pasting step, wherein the sheet pasting mechanism absorbs the positioned sheet from the carrier platform and pastes the sheet to the target position of the component to be glued.

[0046] In this way, the work of attaching the sheet to the target position is completed.

[0047] In some embodiments, the supporting platform also includes a first reference plane extending along the first direction and a second reference plane extending along the second direction, the plane where the first reference plane is located and the plane where the second reference plane is located intersect at a corner of the supporting platform, the pushing component is configured to push the sheet toward the first reference plane and / or the second reference plane so that the sheet abuts against the first reference plane and / or the second reference plane, and the sheet pasting mechanism includes a first adsorption head and at least one second adsorption head; the pasting step includes: the first adsorption head adsorbs the corner of the positioned sheet close to the intersection of the first reference plane and the second reference plane, and at the same time, the second adsorption head adsorbs other parts of the sheet except the corner.

[0048] In the case of simultaneous positioning in two directions, since the plane where the first reference plane is located intersects with the plane where the second reference plane is located at a corner of the supporting platform, after positioning in the first direction and the second direction is completed, the sheet is pushed to the corner of the supporting platform. Sheets of different sizes have a corner positioned at the corner of the supporting platform. Therefore, the position of a corner of sheets of different sizes is the same. The first adsorption head is used to adsorb the corner with the same position to ensure that sheets of different sizes are adsorbed. The second adsorption head is used to adsorb another point of the sheet to improve the stability of adsorption.

[0049] The third aspect of the present disclosure provides a battery production line, comprising: the above-mentioned gluing device, wherein the sheet material includes a thermal insulation pad, the thermal insulation pad has a first adhesive surface and a second adhesive surface, and the target position includes the surface of the battery cell; a first paper tearing device, used to tear off the first side release paper covering the first adhesive surface of the thermal insulation pad; a second paper tearing device, used to tear off the second side release paper covering the second adhesive surface of the thermal insulation pad.

[0050] The positioning mechanism of the gluing device positions the sheet material after the first side release paper is torn off by the first paper tearing device to expose the first adhesive surface; the sheet pasting mechanism of the gluing device picks up the sheet material positioned by the positioning mechanism and pastes the sheet material to the surface of the battery cell; the second paper tearing device tears off the second side release paper of the sheet material pasted to the battery cell.

[0051] Effects of the Invention

[0052] The embodiments of the present disclosure can provide a gluing device, a gluing method, and a battery production line, thereby improving the compatibility of the gluing process without reducing the gluing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present disclosure. The same reference numerals are used throughout the drawings to denote the same components. In the drawings:

[0054] FIG1 is a schematic structural diagram of a positioning mechanism provided in some embodiments of the present disclosure;

[0055] FIG2 is a partial enlarged schematic diagram of point A in FIG1 ;

[0056] FIG3 is a front view of a positioning mechanism provided in some embodiments of the present disclosure;

[0057] FIG4 is a top view of a positioning mechanism provided in some embodiments of the present disclosure;

[0058] FIG5 is a schematic diagram of the structure of a glue application device provided in some embodiments of the present disclosure;

[0059] FIG6 is a schematic diagram of the structure of the motion control module of the adhesive laminating device provided in some embodiments of the present disclosure;

[0060] FIG7 is a schematic diagram of a process of a glue application method according to some embodiments of the present disclosure;

[0061] FIG8 is a schematic diagram of the structure of a battery production line provided in some embodiments of the present disclosure.

[0062] Explanation of the reference numerals 100 sheet; 200 sheet pasting mechanism; 1000 first paper tearing device; 2000 second paper tearing device; 1 base; 2 supporting platform; 21 anti-sticking protrusion; 22 first avoidance groove; 23 second avoidance groove; 24 first reference plane; 25 second reference plane; 31 first direction pushing component; 311 first pushing member; 312 first direction driving device; 313 first connecting plate; 32 second direction pushing component; 321 second pushing member; 322 second direction driving device; 323 second connecting plate; 41 first slide rail; 42 first slider; 43 second slide rail; 44 second slider; 5 control module. DETAILED DESCRIPTION

[0063] The following embodiments of the technical solution of the present disclosure are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure and are therefore only examples and are not intended to limit the scope of protection of the present disclosure.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "including" and "having" and any variations thereof in the specification of the present disclosure and the above-mentioned drawings are intended to cover non-exclusive inclusions.

[0065] In the description of the embodiments of the present disclosure, technical terms such as "first," "second," and "third" are used solely to distinguish different objects and should not be understood to indicate or imply relative importance or to implicitly specify the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present disclosure, "plurality" means more than two, unless otherwise specifically defined.

[0066] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0067] In the description of the embodiments of the present disclosure, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0068] In the description of the embodiments of the present disclosure, the orientations or positional relationships 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 orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated, or used in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present disclosure.

[0069] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal connectivity between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure based on specific circumstances.

[0070] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0071] Hereinafter, the present disclosure will be described in detail.

[0072] Currently, new energy batteries are increasingly being used in everyday life and industry. They are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in a variety of fields such as aerospace. As the application of power batteries continues to expand, market demand is also growing.

[0073] The assembly accuracy of battery modules plays an important role in the performance and safety of battery products. It is directly related to the stability, reliability and life of the entire battery system. During the battery assembly process, it is sometimes necessary to stick double-sided tape, thermal insulation pads and other sheet materials. Improving the sticking accuracy is an important part of improving the assembly accuracy of battery modules.

[0074] Furthermore, battery production lines typically produce a variety of battery modules, leading to increased compatibility within the industry. Improving the compatibility of the bonding process can help improve this compatibility. Therefore, improving the compatibility of the bonding process without compromising bonding accuracy is a key research topic within the industry.

[0075] Currently, during the gluing process, the release paper on one side of the sheet is first removed. The sheet is then moved directly, allowing the adhesive surface exposed by the removal of the release paper to be attached to the surface of the battery cell. The inventors of this disclosure have noted that during this process, the sheet's positional accuracy is difficult to control, resulting in low alignment accuracy between the sheet and the battery cell, which in turn affects the assembly accuracy of the battery module. Furthermore, when gluing different types of sheets, the accuracy is even worse, and even the same gluing device cannot be used for the same operation, resulting in poor compatibility.

[0076] The inventors of this disclosure have discovered that after removing one side of the release paper from the sheet, the sheet is positioned once, adjusting the sheet's position to a predetermined setting. This improves the accuracy of the sheet's positioning during the pasting process, thereby enhancing pasting precision. Furthermore, the sheet is positioned using a movable pusher assembly. Because the pusher assembly can vary its stroke based on the sheet's size, it can accommodate sheets of varying sizes. This improves the compatibility of the pasting process while maintaining the accuracy of the pasting process.

[0077] Based on such a design concept, the inventors of the present disclosure have designed a gluing device, which includes a positioning mechanism and a sheet pasting mechanism. The positioning mechanism is used to position the sheet from which the release paper on one side has been torn off, so that the sheet is positioned once during the gluing process, which improves the position accuracy of the sheet during the pasting process, thereby facilitating the improvement of the pasting accuracy. The positioning mechanism positions the sheet by pushing, and the pushing component can position sheets of different sizes by changing the pushing stroke, thereby improving the compatibility of the pasting process without reducing the pasting accuracy. The supporting platform of the positioning mechanism is provided with an anti-sticking structure, and the exposed adhesive surface of the sheet contacts the anti-sticking structure, reducing the degree of adhesion between the adhesive surface and the supporting surface, facilitating the picking and removal action of the sheet pasting mechanism, and preventing the adhesion of the adhesive surface from being affected by the adhesion between the adhesive surface and the supporting surface.

[0078] The gluing device provided in the embodiments of the present disclosure can be used in the assembly process of any device that includes sheet materials and has certain requirements for the accuracy of the sheet material adhesion, such as but not limited to the assembly process of battery modules. Because the gluing device provided in the embodiments of the present disclosure can improve the compatibility of the sheet material adhesion process without reducing the adhesion accuracy of the sheet material, the gluing device provided in the embodiments of the present disclosure can improve the compatibility of the adhesion process between the thermal insulation pad and the battery cell without reducing the adhesion accuracy of the thermal insulation pad and the battery cell.

[0079] A battery cell refers to a basic unit that can realize the mutual conversion of chemical energy and electrical energy. It can be used to make battery modules or battery packs, which are used to power electrical devices.

[0080] 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.

[0081] The battery cells may be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc., which are not limited in the embodiments of the present disclosure.

[0082] In the embodiment of the present disclosure, the battery can 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 through a busbar.

[0083] In some embodiments, the battery may be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0084] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are housed in the case.

[0085] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to FIG. 1 to FIG. 8 .

[0086] Figure 1 is a structural schematic diagram of the positioning mechanism provided in some embodiments of the present disclosure; Figure 2 is a partial enlarged schematic diagram of point A in Figure 1; Figure 3 is a main view of the positioning mechanism provided in some embodiments of the present disclosure; Figure 4 is a top view of the positioning mechanism provided in some embodiments of the present disclosure; Figure 5 is a structural schematic diagram of the gluing device provided in some embodiments of the present disclosure; Figure 6 is a structural schematic diagram of the motion control module of the gluing device provided in some embodiments of the present disclosure.

[0087] In some embodiments of the present disclosure, for ease of explanation, a first direction, a second direction, and a third direction are set, and the first direction, the second direction, and the third direction are directions that intersect with each other, where intersecting with each other includes intersecting perpendicularly with each other. For ease of understanding the embodiments of the present disclosure, in the embodiments shown in Figures 1 to 8, the first direction, the second direction, and the third direction are directions that intersect with each other perpendicularly for explanation, but those skilled in the art should understand that the embodiments of the present disclosure are not limited to the case where the three directions intersect with each other perpendicularly. For ease of explanation, as shown by the arrows in Figures 1, 3 to 5, and 8, the direction of arrow X is the first direction, the direction of arrow Y is the second direction, and the direction of arrow Z is the third direction. Sometimes the direction indicated by arrow Z along the third direction is also referred to as "above", and the opposite direction is referred to as "below".

[0088] As shown in Figures 1 to 5, an embodiment of the present disclosure provides a gluing device, which includes a positioning mechanism and a sheet pasting mechanism 200. The positioning mechanism is used to position the sheet 100, and the sheet 100 has an exposed first adhesive surface; and the sheet pasting mechanism 200 is used to pick up the sheet 100 positioned by the positioning mechanism and paste the sheet 100 to the target position of the component to be glued.

[0089] Among them, the positioning mechanism includes a base 1, a supporting platform 2 and a pushing component. The supporting platform 2 is arranged on the base 1 and is used to support the sheet 100. The first bonding surface of the sheet 100 is in contact with the supporting surface of the supporting platform 2. The supporting platform 2 is provided with an anti-sticking structure, and the supporting surface of the supporting platform 2 at least includes a supporting surface of the anti-sticking structure; the pushing component is arranged on the base 1, and is configured to be able to push the sheet 100 along a first direction and a second direction intersecting the first direction under the drive of the driving device to position the sheet 100.

[0090] The sheet 100 is a sheet-like object having an adhesive surface on at least one side, and the adhesive surface on one side is exposed by tearing off the release paper. For example, the sheet 100 may have an adhesive surface on only one side, or may have adhesive surfaces on both sides. In the case of adhesive surfaces on both sides, the adhesive surface on one side is exposed by tearing off the release paper, while the adhesive surface on the other side is covered by the release paper. The gluing device provided in the present disclosure is used to adhere the exposed adhesive surface to a target position. The sheet 100 can be an adhesive material used only to bond two components, or it can be an adhesive material with an adhesive function and other functions, such as but not limited to a thermal insulation pad with a heat insulation function, a thermal conductive pad with a heat conduction function, an insulating pad with an insulation function, and the like.

[0091] "The carrying surface of the carrying platform 2 at least includes a carrying surface of the anti-sticking structure" means that a part of the carrying surface of the carrying platform 2 may not be provided with an anti-sticking structure, and the other part may be provided with an anti-sticking structure. In this case, at least a part of the first bonding surface contacts the carrying surface of the anti-sticking structure; the carrying surfaces of the carrying platform 2 may also all be carrying surfaces of the anti-sticking structure, that is, the entire first bonding surface contacts the carrying surface of the anti-sticking structure.

[0092] When using the gluing device for gluing, a sheet 100 with one side of the release paper torn off is placed on the supporting surface of the supporting platform 2, and the first adhesive surface exposed due to the removal of the release paper contacts the supporting surface. The pushing component pushes the sheet 100 along a first direction and a second direction intersecting the first direction under the drive of the driving device to position the sheet 100. After the positioning is completed, the sheet pasting mechanism 200 picks up the sheet 100 from the supporting surface and pastes the sheet 100 to the target position. During the gluing process, the positioning mechanism is used to position the sheet 100 once, which improves the position accuracy of the sheet 100 during the pasting process, thereby helping to improve the pasting accuracy of the sheet 100.

[0093] Furthermore, the pushing assembly positions the sheet 100 by pushing it. Therefore, the pushing assembly can position sheets 100 of different sizes by varying the pushing stroke, thereby improving the compatibility of the pasting process without reducing pasting accuracy. Furthermore, the carrier 2 is provided with an anti-adhesion structure. The carrier surface of the carrier 2 includes at least the carrier surface of the anti-adhesion structure. At least a portion of the first adhesive surface contacts the carrier surface of the anti-adhesion structure, reducing the degree of adhesion between the first adhesive surface and the carrier surface, facilitating the picking and removal of the sheet pasting mechanism 200, and preventing the adhesion of the first adhesive surface to the carrier surface from affecting the stickiness of the first adhesive surface.

[0094] In some embodiments of the present disclosure, the anti-sticking structure includes a plurality of anti-sticking protrusions 21 , and the plurality of anti-sticking protrusions 21 are arranged at intervals from each other.

[0095] The anti-sticking protrusion 21 is a protruding structure formed by a portion of the surface of the carrier platform 2 protruding toward a side away from the carrier platform 2. The provision of the protruding structure reduces the contact area of ​​the carrier platform 2 when in contact with other surfaces, compared to a case where the protruding structure is not provided. The anti-sticking protrusion 21 can be integrally formed when the carrier platform 2 is manufactured, or smaller-sized blocks can be connected to the surface of the plate to form the carrier platform 2, wherein the smaller-sized blocks are formed as the anti-sticking protrusion 21. The anti-sticking protrusion 21 can be a spherical protrusion, a cylindrical protrusion, a truncated cone-shaped protrusion, a strip-shaped protrusion or a conical protrusion, etc., and is not specifically limited here.

[0096] There are multiple anti-sticking protrusions 21, and the multiple anti-sticking protrusions 21 are arranged at intervals from each other, which further reduces the contact area between the carrying surface and the first adhesive surface, further reduces the degree of adhesion between the first adhesive surface and the carrying surface, facilitates the picking and removing action of the sheet pasting mechanism 200, and prevents the adhesion of the first adhesive surface from affecting the adhesion of the first adhesive surface.

[0097] In some embodiments of the present disclosure, the anti-sticking protrusions 21 are in a strip-shaped structure, and a plurality of strip-shaped structures are parallel to each other and distributed on the supporting platform 2 at equal intervals.

[0098] A strip structure is a structure extending along a straight line. The strip structure can extend along any direction within a plane shared by the first and second directions. The strip structure can extend along the first direction, the second direction, or another direction intersecting the first and second directions.

[0099] With such arrangement, the anti-sticking protrusions 21 have a stable and uniform supporting effect on the sheet 100 .

[0100] In some embodiments of the present disclosure, the release protrusions 21 extend along the first direction or the second direction.

[0101] In this way, the pushing component pushes the sheet 100 to move along the first direction or the second direction more smoothly.

[0102] In some embodiments of the present disclosure, the cross section of the anti-sticking protrusion 21 is square, and the edges around the supporting surface of the anti-sticking protrusion 21 are chamfered.

[0103] The cross section of the release protrusion 21 refers to the cross section formed by cutting the release protrusion 21 with a plane perpendicular to the extension direction (length direction) of the release protrusion 21. The cross section of the release protrusion 21 is set to be square, so that the supporting surface of the release protrusion 21 is flat, which can stably support the sheet 100 and prevent the curved surface support from affecting the shape of the sheet 100.

[0104] The edges of the supporting surface of the anti-sticking protrusion 21 are chamfered to reduce the contact area between the anti-sticking protrusion 21 and the first adhesive surface, and to prevent the sharp edges from scratching the sheet 100, thereby protecting the sheet 100.

[0105] In some embodiments of the present disclosure, the supporting surface of the supporting platform 2 is composed of the supporting surface of the anti-sticking protrusion 21.

[0106] Such a setting further reduces the contact area between the supporting surface of the supporting platform 2 and the first adhesive surface, further reduces the degree of adhesion between the first adhesive surface and the supporting surface, facilitates the picking and removing action of the sheet pasting mechanism 200, and prevents the adhesion between the first adhesive surface and the supporting surface from affecting the viscosity of the first adhesive surface.

[0107] In some embodiments of the present disclosure, the anti-sticking structure includes an anti-sticking layer, and the anti-sticking layer is attached to the carrying surface of the carrying platform.

[0108] The anti-adhesion layer is a sheet structure used to prevent the first adhesive surface from adhering to the carrying surface. The anti-adhesion layer is attached to the carrying surface and directly contacts the first adhesive surface.

[0109] The anti-sticking layer prevents the first adhesive surface and the carrying surface from adhering to each other, facilitates the picking up and removing action of the sheet material pasting mechanism 200, and prevents the adhesion of the first adhesive surface and the carrying surface from affecting the stickiness of the first adhesive surface.

[0110] In some embodiments of the present disclosure, the release layer includes a release coating.

[0111] An anti-stick coating is formed by spraying an anti-stick coating on the carrying surface of the carrying platform 2 to prevent the first adhesive surface and the carrying surface from sticking together, thereby facilitating the picking and removing action of the sheet pasting mechanism 200 and preventing the adhesion of the first adhesive surface and the carrying surface from affecting the stickiness of the first adhesive surface.

[0112] In some embodiments of the present disclosure, the anti-stick coating includes at least one of polytetrafluoroethylene, polyvinyl acetate, polyethylene and silicone materials.

[0113] The anti-stick coating formed by the above material has good anti-stick effect, preventing the first adhesive surface and the carrying surface from sticking together, facilitating the picking and removing action of the sheet pasting mechanism 200, and preventing the adhesion of the first adhesive surface and the carrying surface from affecting the stickiness of the first adhesive surface.

[0114] In some embodiments of the present disclosure, the supporting platform 2 also includes a first reference surface 24 extending along the first direction and a second reference surface 25 extending along the second direction. The plane where the first reference surface 24 is located and the plane where the second reference surface 25 is located intersect at a corner of the supporting platform 2. The pushing component is configured to push the sheet 100 toward the first reference surface 24 and / or the second reference surface 25 so that the sheet 100 abuts against the first reference surface 24 and / or the second reference surface 25.

[0115] The pushing assembly pushes the sheet 100 until it contacts the first reference surface 24 to position the sheet 100 in one direction; the pushing assembly pushes the sheet 100 until it contacts the second reference surface 25 to position the sheet 100 in the other direction. In actual use, the pushing assembly can be used to position the sheet 100 in only one direction or in both directions.

[0116] The phrase "the plane of first reference plane 24 and the plane of second reference plane 25 intersect at a corner of support platform 2" indicates that first reference plane 24 and second reference plane 25 may intersect or be spaced apart. A corner may be any corner of support platform 2, without limitation.

[0117] In the case of simultaneous positioning in two directions, since the plane where the first reference surface 24 is located and the plane where the second reference surface 25 is located intersect at a corner of the carrier 2, after positioning in the first direction and the second direction is completed, the sheet 100 is pushed to the corner of the carrier 2, completing the precise positioning of the position, and for sheets 100 of different sizes, they are all positioned at the corner of the carrier 2, which is beneficial to improving the alignment accuracy of the sheet 100 and the target position, thereby improving the compatibility of the pasting process without reducing the pasting accuracy.

[0118] The provision of the first reference surface 24 and the second reference surface 25 enables positioning of the sheet 100 in two directions, thereby improving the positioning accuracy of the sheet 100 .

[0119] In some embodiments of the present disclosure, the first reference surface 24 , the second reference surface 25 and the supporting surface of the supporting platform 2 are integrally formed.

[0120] In this way, the relative position accuracy of the first reference surface 24 , the second reference surface 25 and the supporting surface of the supporting platform 2 is improved, thereby facilitating the improvement of the positioning accuracy of the sheet 100 .

[0121] In some embodiments of the present disclosure, the supporting platform 2 is provided with a first reference block and a second reference block, which are respectively arranged at two adjacent edges of the supporting surface of the supporting platform 2. The side of the first reference block close to the supporting surface includes a first reference surface 24, and the side of the second reference block close to the supporting surface includes a second reference surface 25.

[0122] The arrangement of the first reference block and the second reference block forms a first reference plane 24 and a second reference plane 25 .

[0123] In some embodiments of the present disclosure, the carrying platform 2 is integrally formed, that is, the carrying surface, the first reference surface 24 and the second reference surface 25 of the carrying platform 2 are integrally formed.

[0124] In some embodiments of the present disclosure, the supporting platform 2 is provided with at least one pushing component including a first direction pushing component 31 and a second direction pushing component 32 , and each supporting platform 2 is provided with a first direction pushing component 31 and a second direction pushing component 32 .

[0125] The first direction pushing component 31 pushes the sheet 100 in the first direction to position the sheet 100 in the first direction; the second direction pushing component 32 pushes the sheet 100 in the second direction to position the sheet 100 in the second direction, thereby positioning the sheet 100 on each supporting platform 2 in two directions, thereby improving the positioning accuracy of each sheet 100.

[0126] In some embodiments of the present disclosure, the first direction pushing component 31 includes a first pushing member 311 and a first connecting member. The first pushing member 311 is used to contact the sheet 100 and push the sheet 100 along the first direction; the first connecting member is connected to the first pushing member 311, is provided on the base 1 and can move along the first direction under the drive of the first direction driving device 312 to push the first pushing member 311.

[0127] The above-mentioned “contact” can be direct contact or indirect contact. That is, the first pushing member 311 can directly contact the sheet material 100, or a buffer pad can be provided on the first pushing member 311 so as to indirectly contact the sheet material 100 through the buffer pad.

[0128] In this way, the function of the first direction pushing component 31 to push the sheet 100 along the first direction is achieved.

[0129] In some embodiments of the present disclosure, the second direction pushing component 32 includes a second pushing member 321 and a second connecting member. The second pushing member 321 is used to contact the sheet 100 and push the sheet 100 along the second direction; the second connecting member is connected to the second pushing member 321, is provided on the base 1 and can move along the second direction under the drive of the second direction driving device 322 to push the second pushing member 321.

[0130] The above-mentioned “contact” can be direct contact or indirect contact. That is, the second pushing member 321 can directly contact the sheet material 100, or a buffer pad can be provided on the second pushing member 321 so as to indirectly contact the sheet material 100 through the buffer pad.

[0131] In this way, the function of the second direction pushing component 32 to push the sheet 100 along the second direction is achieved.

[0132] The first pushing member 311 is arranged toward the second reference surface 25, and the sheet 100 placed on the supporting surface is located between the first pushing member 311 and the second reference surface 25. The first pushing member 311 contacts the sheet 100 and pushes the sheet 100 along the first direction, and can push the sheet 100 along the first direction until it abuts against the second reference surface 25.

[0133] The second pushing member 321 is arranged toward the first reference surface 24, and the sheet 100 placed on the supporting surface is located between the second pushing member 321 and the first reference surface 24. The second pushing member 321 contacts the sheet 100 and pushes the sheet 100 along the second direction, and can push the sheet 100 along the second direction until it abuts against the first reference surface 24.

[0134] In some embodiments of the present disclosure, there are multiple supporting platforms 2, and the multiple supporting platforms 2 are arranged at intervals along the first direction. The first connecting members of each first direction pushing component 31 are connected to each other to form a first connecting plate 313, and the first connecting plate 313 is connected to the output end of the first direction driving device 312.

[0135] The plurality of first pushers 311 are connected to the output end of the first direction driving device 312 through the first connecting plate 313 , so that one first direction driving device 312 drives the plurality of first pushers 311 to move simultaneously, thereby improving positioning efficiency.

[0136] In some embodiments of the present disclosure, the second connecting members of each second direction pushing assembly 32 are connected to each other to form a second connecting plate 323 , and the second connecting plate 323 is connected to the output end of the second direction driving device 322 .

[0137] The plurality of second pushers 321 are connected to the output end of the second direction driving device 322 via the second connecting plate 323 , so that one second direction driving device 322 can simultaneously drive the plurality of second pushers 321 to move, thereby improving positioning efficiency.

[0138] In some embodiments of the present disclosure, the first direction driving device 312 and the second direction driving device 322 respectively include servo motors, and the servo motors are disposed on the base 1 .

[0139] The servo motor drives the first pusher 311 and the second pusher 321 , and the driving stroke of the servo motor can be easily changed, so that it can be suitable for positioning sheets 100 of various sizes, thereby improving the compatibility of the gluing device.

[0140] In some embodiments of the present disclosure, the gluing device further includes a control module 5, which determines the respective pushing strokes of the first pushing member 311 and the second pushing member 321 according to the size of the sheet 100, and controls the first pushing member 311 and the second pushing member 321 to move with their respective pushing strokes.

[0141] The setting of the control module 5 realizes automatic control of the switching of the pushing strokes of the first pushing member 311 and the second pushing member 321, so that the first pushing member 311 and the second pushing member 321 move with their respective determined pushing strokes, thereby being able to position sheets 100 of various sizes.

[0142] In some embodiments of the present disclosure, as shown in FIG6 , the control module 5 controls the first direction driving device 312 and the second direction driving device 322 respectively, so that the first pushing member 311 and the second pushing member 321 move with their respective pushing strokes.

[0143] The control module 5 realizes the automatic switching of the driving stroke of the servo motor and the automatic switching of the pushing stroke of the first pusher 311 and the second pusher 321, so that the first pusher 311 and the second pusher 321 move with their respective determined pushing strokes, thereby being able to position sheets 100 of various sizes.

[0144] In some embodiments of the present disclosure, elastic buffer pads are provided on the first pushing member 311 and the second pushing member 321 , and the elastic buffer pads are used to contact the sheet 100 .

[0145] The elastic buffer pad includes at least one of a rubber buffer pad, a silicone buffer pad and a foam buffer pad.

[0146] The provision of the elastic buffer pad prevents the first pushing member 311 and the second pushing member 321 from directly contacting the sheet 100 and damaging the sheet 100 , thereby protecting the sheet 100 .

[0147] In some embodiments of the present disclosure, one of the first connecting plate 313 and the base 1 is provided with a first slide rail 41 , and the other is provided with a first slider 42 . The first slide rail 41 extends along the first direction, and the first slider 42 is slidably connected to the first slide rail 41 .

[0148] The cooperation between the first slide rail 41 and the first slider 42 guides the movement of the first connecting plate 313 along the first direction, thereby improving the stability of the movement of the first connecting plate 313 .

[0149] In some embodiments of the present disclosure, the base 1 is provided with a first slide rail 41 , and the first connecting plate 313 is provided with a first sliding block 42 .

[0150] Since the size of the base 1 is relatively large, the first slide rail 41 is provided on the base 1 , thereby improving the installation stability of the first slide rail 41 .

[0151] In some embodiments of the present disclosure, two first slide rails 41 are arranged at intervals along the second direction, two first sliders 42 are provided, and the two first slide rails 41 and the two first sliders 42 are slidably connected in a one-to-one manner.

[0152] The provision of two sets of first slide rails 41 and first sliders 42 further improves the stability of the movement of the first connecting plate 313 .

[0153] In some embodiments of the present disclosure, one of the second connecting plate 323 and the base 1 is provided with a second slide rail 43 , and the other is provided with a second slider 44 . The second slide rail 43 extends along the second direction, and the second slider 44 is slidably connected to the second slide rail 43 .

[0154] The cooperation between the second slide rail 43 and the second slider 44 guides the movement of the second connecting plate 323 along the second direction, thereby improving the stability of the movement of the second connecting plate 323 .

[0155] In some embodiments of the present disclosure, the base 1 is provided with a second slide rail 43 , and the second connecting plate 323 is provided with a second sliding block 44 .

[0156] Since the size of the base 1 is relatively large, the second slide rail 43 is provided on the base 1 , thereby improving the installation stability of the second slide rail 43 .

[0157] In some embodiments of the present disclosure, two second slide rails 43 are arranged at intervals along the first direction, and two second sliders 44 are provided. The two second slide rails 43 and the two second sliders 44 are slidably connected in a one-to-one manner.

[0158] The provision of two sets of second slide rails 43 and second sliders 44 further improves the stability of the movement of the second connecting plate 323 .

[0159] In some embodiments of the present disclosure, the base 1 is a rectangular plate, the length direction of the rectangular plate is the first direction, the width direction is the second direction, and the thickness direction is the third direction.

[0160] The multiple supporting platforms 2 are spaced apart along the first direction, that is, the multiple supporting platforms 2 are spaced apart in the length direction of the base 1 , and the layout is reasonable, which reduces the space occupied by the glue laminating device.

[0161] In some embodiments of the present disclosure, as shown in Figure 4, the supporting platform 2 is arranged above the base 1, the second connecting plate 323 is arranged above the base 1, one end of the second pushing member 321 is connected to the second connecting plate 323, and the other end extends toward the supporting platform 2 along the second direction, for contacting and pushing the sheet 100. As shown in Figure 3, the second direction driving device 322 is arranged below the base 1, and the output shaft of the second direction driving device 322 passes through the base 1 along the third direction and is connected to the second connecting plate 323.

[0162] In this way, the second connecting plate 323 and the second direction driving device 322 are respectively arranged on the upper side and the lower side of the base 1 , with a reasonable layout and occupying a small area on the upper surface of the base 1 .

[0163] In some embodiments of the present disclosure, as shown in Figure 3, the first connecting plate 313 and the first direction driving device 312 are both arranged below the base 1, one end of the first pushing member 311 is connected to the first connecting plate 313, and the other end extends upward through the base 1, extending to the part above the base 1 for contacting and pushing the sheet 100.

[0164] In this way, the layout is reasonable and the occupancy of the upper surface of the base 1 is reduced.

[0165] In some embodiments of the present disclosure, the first pushing member 311 includes at least two first bar blocks, which are arranged in sequence along the second direction. Each first bar block extends along the third direction, one end of which is connected to the first connecting plate 313, and the other end is used to contact and push the sheet 100.

[0166] At least two first strip blocks contact the sheet 100 at the same time, which is beneficial to improving the stability of pushing the sheet 100 along the first direction.

[0167] In some embodiments of the present disclosure, the second pushing member 321 includes at least two second bar blocks, which are arranged in sequence along the first direction. Each second bar block extends along the second direction, one end of which is connected to the second connecting plate 323, and the other end is used to contact and push the sheet 100.

[0168] At least two second strip blocks contact the sheet 100 at the same time, which is beneficial to improving the stability of pushing the sheet 100 along the second direction.

[0169] In some embodiments of the present disclosure, the supporting platform 2 is provided with a first avoidance groove 22 extending along the first direction and a second avoidance groove 23 extending along the second direction. The first avoidance groove 22 and the second avoidance groove 23 are respectively opened on the side of the supporting platform 2. The first pushing member 311 can extend into the first avoidance groove 22, and the second pushing member 321 can extend into the second avoidance groove 23.

[0170] The setting of the first avoidance groove 22 prevents the supporting platform 2 from affecting the pushing range of the first pushing member 311. Therefore, the first avoidance groove 22 enables the first pushing member 311 to have a larger pushing range in the first direction, so that it can be used to position sheets 100 of different sizes in the first direction, thereby improving the compatibility of the gluing device.

[0171] Moreover, the setting of the second avoidance groove 23 prevents the supporting platform 2 from affecting the pushing range of the second pushing member 321. Therefore, the second avoidance groove 23 enables the second pushing member 321 to have a larger pushing range in the second direction, so that it can be used to position sheets 100 of different sizes in the second direction, thereby improving the compatibility of the gluing device.

[0172] In some embodiments of the present disclosure, the shape of the first avoidance groove 22 is adapted to the shape of the first pushing member 311 ; the shape of the second avoidance groove 23 is adapted to the shape of the second pushing member 321 .

[0173] In this way, while improving compatibility, the side walls of the first avoidance groove 22 limit the sides of the first pusher 311, preventing the first pusher 311 from tilting to the sides and improving the stability of the movement of the first pusher 311. Similarly, the side walls of the second avoidance groove 23 limit the sides of the second pusher 321, preventing the second pusher 321 from tilting to the sides and improving the stability of the movement of the second pusher 321.

[0174] In some embodiments of the present disclosure, the first pushing member 311 includes at least two first bar blocks, which are arranged in sequence along the second direction, and the first avoidance groove 22 includes at least two first bar grooves that match the at least two first bar blocks one by one.

[0175] In some embodiments of the present disclosure, the second pushing member 321 includes at least two second bar blocks, which are arranged in sequence along the first direction, and the second avoidance groove 23 includes at least two second bar grooves that match the at least two second bar blocks one by one.

[0176] In some embodiments of the present disclosure, the sheet pasting mechanism 200 includes an adsorption device, which adsorbs the positioned sheet 100 from the carrier 2 and adheres the sheet 100 to a target position of the component to be glued.

[0177] The adsorption device realizes the picking up, alignment and pasting of the sheet 100, completing the gluing operation.

[0178] The pushing component of the gluing device positions the sheet 100 by pushing the sheet. Therefore, the pushing component can position sheets 100 of different sizes by changing the pushing stroke, thereby improving the compatibility of the gluing process on the battery cell without reducing the gluing accuracy.

[0179] In some embodiments of the present disclosure, the target location includes at least any one of a large surface, a side surface, a bottom surface, and a top surface of the battery cell.

[0180] In some embodiments of the present disclosure, the adsorption device can pick up the sheet 100 in a set motion and move along a set trajectory.

[0181] In this way, based on the accurate positioning of the sheet 100, the adsorption device can pick up the sheet 100 in a set action, so that the sheet 100 presents a preset posture after being picked up, and then the adsorption device moves along a set trajectory to stick to the battery cell.

[0182] It can be seen that in the entire process described above, the position of the sheet 100 at each moment is precisely controlled, so that the alignment accuracy of the sheet 100 and the battery cell is high, thereby improving the assembly accuracy of the battery module.

[0183] In some embodiments of the present disclosure, the adsorption device includes an adsorption part and a moving device. The adsorption part is connected to the moving device. The adsorption part is used to adsorb the positioned sheet 100 in a set posture. The moving device is used to move the adsorbed sheet 100 to a target position for pasting on the part to be glued along a set trajectory.

[0184] The adsorption member and the moving device cooperate with each other to realize the function of the adsorption device.

[0185] The adsorbent includes, but is not limited to, a suction cup, and the moving device includes, but is not limited to, a flipping device. The flipping device is used to drive the adsorbent to flip, so that the sheet 100 adsorbed on the adsorbent is flipped and attached to the target location. Those skilled in the art can determine the radius and angle of the flipping action of the flipping device based on factors such as the relative position of the support surface and the target location, thereby being able to design a flipping device with the above-mentioned functions without inventive effort. The specific structure of the flipping device is not further described here.

[0186] In some embodiments of the present disclosure, the adsorption part includes a first adsorption head and at least one second adsorption head. The first adsorption head is used to adsorb the corner of the positioned sheet 100 near the intersection of the first reference plane 24 and the second reference plane 25, and the second adsorption head is used to adsorb other parts of the sheet 100 except the corner.

[0187] When positioning in the first direction and the second direction at the same time, since the plane where the first reference plane 24 and the plane where the second reference plane 25 are located intersect at a corner of the supporting platform 2, after positioning in the first direction and the second direction is completed, the sheet 100 is pushed to the corner of the supporting platform 2. Sheets 100 of different sizes all have a corner positioned at the corner of the supporting platform 2. Therefore, the position of a corner of sheets 100 of different sizes is the same. The first adsorption head is used to adsorb the corner with the same position to ensure that sheets 100 of different sizes are adsorbed. The second adsorption head is used to adsorb another point of the sheet 100 to improve the stability of adsorption.

[0188] In some embodiments of the present disclosure, the sheet 100 includes a thermal insulation pad, and the component to be glued includes a battery cell.

[0189] The gluing device provided by the embodiment of the present disclosure is applied to the pasting operation of battery cells and thermal insulation pads. Specifically, the thermal insulation pad with one side of the release paper torn off is placed on the supporting surface of the supporting platform 2, and the first adhesive surface exposed due to the removal of the release paper contacts the supporting surface. The pushing component pushes the thermal insulation pad along the first direction and the second direction intersecting the first direction under the drive of the driving device to position the thermal insulation pad. After the positioning is completed, the sheet pasting mechanism 200 picks up the thermal insulation pad from the supporting surface and pastes the thermal insulation pad to the side wall of the battery cell. During the pasting process, the thermal insulation pad is positioned once by using the positioning mechanism, which improves the position accuracy of the thermal insulation pad during the pasting process, thereby facilitating the improvement of the alignment accuracy of the thermal insulation pad and the battery cell, and further improving the pasting accuracy of the thermal insulation pad.

[0190] In addition, the pushing component positions the thermal insulation pad by pushing the thermal insulation pad. Therefore, the pushing component can position thermal insulation pads of different sizes by changing the pushing stroke, thereby improving the compatibility of the thermal insulation pad pasting process without reducing the pasting accuracy.

[0191] In some embodiments of the present disclosure, the gluing device further includes a detection camera, which is used to detect whether the gluing accuracy of the sheet material glued to the target position is qualified.

[0192] The detection camera is used to detect whether the pasting accuracy of the sheet is qualified, so as to screen out battery cells with insufficient accuracy and further improve the pasting accuracy of the thermal insulation pad.

[0193] In some embodiments of the present disclosure, the gluing device further includes a loading mechanism, which is used to place the sheet 100 with the first adhesive surface exposed onto the carrying surface of the carrying platform 2 .

[0194] The setting of the loading mechanism enables the sheet 100 to be loaded onto the supporting platform 2 .

[0195] In some embodiments of the present disclosure, the loading mechanism includes a picking mechanism, a sliding guide rail and an in-place detection component. The picking mechanism is slidably connected to the sliding guide rail. The in-place detection component is used to detect whether the picking mechanism is in the unloading position. When the picking mechanism is in the unloading position, the sheet 100 can be lowered. The unloading position is located directly above the supporting surface of the supporting platform 2.

[0196] When working, the picking mechanism moves along the sliding guide rail. When the in-place detection part detects the in-place signal, the picking mechanism moves to the unloading position. At this time, the picking mechanism is located directly above the carrying surface of the carrying table 2. The picking mechanism releases the sheet 100, and the sheet 100 falls onto the carrying surface under the action of gravity, completing the action of placing the sheet 100 on the carrying surface of the carrying table 2.

[0197] In some embodiments of the present disclosure, the pickup mechanism may be an adsorption mechanism having a suction cup, or a gripping mechanism having a gripper, etc., as long as it is a mechanical device capable of picking up and releasing the sheet 100. The in-position detection element may be any one of a photoelectric sensor, a pressure sensor, a wire sensor, a contact sensor, and a distance sensor.

[0198] In some embodiments of the present disclosure, the adhesive laminating device further includes a tearing mechanism for removing the release paper from one side of the sheet 100. The sheet 100, with the release paper removed, is transferred to the supporting surface of the support platform 2 via the loading mechanism. The specific structure and operating principle of the tearing mechanism can be found in the prior art and will not be further described here.

[0199] The adhesive application method provided by the embodiment of the present disclosure is described below with reference to the accompanying drawings.

[0200] FIG7 is a schematic flow chart of a gluing method according to some embodiments of the present disclosure.

[0201] As shown in FIG7 , an embodiment of the present disclosure provides a method for gluing, wherein a gluing device according to any of the above embodiments is used to stick a sheet 100 to a component to be glued. The sheet 100 has a first adhesive surface exposed by removing a release paper. The gluing device includes a positioning mechanism and a sheet gluing mechanism 200. The positioning mechanism includes a base 1, a supporting platform 2, and a pushing assembly. The supporting platform 2 is provided with an anti-sticking structure. The supporting surface of the supporting platform 2 includes at least a supporting surface of the anti-sticking structure. The anti-sticking structure includes a plurality of anti-sticking protrusions 21. The plurality of anti-sticking protrusions 21 are arranged at intervals from each other. The gluing method includes:

[0202] S1, placing step: placing the sheet on the supporting platform with the first adhesive surface facing the anti-sticking protrusion on the supporting surface of the supporting platform;

[0203] S2, a pushing stroke determining step: determining the pushing stroke of the pushing component in the first direction and the second direction according to the size of the sheet;

[0204] S3, pushing step: the driving device drives the pushing component to push the stroke motion to push the sheet along the first direction and the second direction.

[0205] During the gluing process, the sheet 100 is positioned once using the positioning mechanism, thereby improving the position accuracy of the sheet 100 during the gluing process, thereby facilitating improved alignment accuracy between the sheet 100 and the target position.

[0206] In addition, the pushing strokes of the pushing component in the first direction and the second direction are determined according to the size of the sheet 100, so that the gluing device can position sheets 100 of different sizes, thereby improving the compatibility of the gluing device.

[0207] In some embodiments of the present disclosure, the gluing method further includes:

[0208] S4, pasting step: the sheet pasting mechanism absorbs the positioned sheet from the carrier platform and pastes the sheet to the target position of the component to be glued.

[0209] In this way, the work of attaching the sheet 100 to the target position is completed.

[0210] In some embodiments of the present disclosure, the supporting platform also includes a first reference plane extending along the first direction and a second reference plane extending along the second direction, the plane where the first reference plane is located and the plane where the second reference plane is located intersect at a corner of the supporting platform, the pushing component is configured to push the sheet toward the first reference plane and / or the second reference plane so that the sheet abuts against the first reference plane and / or the second reference plane, and the sheet pasting mechanism includes a first adsorption head and at least one second adsorption head; the pasting step includes: the first adsorption head adsorbs the corner of the positioned sheet close to the intersection of the first reference plane and the second reference plane, and at the same time, the second adsorption head adsorbs other parts of the sheet except the corner.

[0211] In the case of simultaneous positioning in two directions, since the plane where the first reference plane is located intersects with the plane where the second reference plane is located at a corner of the supporting platform, after positioning in the first direction and the second direction is completed, the sheet is pushed to the corner of the supporting platform. Sheets of different sizes have a corner positioned at the corner of the supporting platform. Therefore, the position of a corner of sheets of different sizes is the same. The first adsorption head is used to adsorb the corner with the same position to ensure that sheets of different sizes are adsorbed. The second adsorption head is used to adsorb another point of the sheet to improve the stability of adsorption.

[0212] In some embodiments of the present disclosure, the gluing device also includes a paper tearing mechanism and a loading mechanism. The loading mechanism includes a picking mechanism, a sliding guide rail and an in-place detection component. In the placement step, the paper tearing mechanism picks up a complete sheet 100 from the hopper and tears off the release paper on one side of the complete sheet 100, so that the sheet 100 exposes the first adhesive surface; the picking mechanism picks up the sheet 100 with the first adhesive surface exposed and moves along the sliding guide rail. In this step, the first adhesive surface faces downward; when the in-place detection component detects an in-place signal, the picking mechanism stops moving; the picking mechanism releases the sheet 100, and the sheet 100 moves vertically downward to the supporting surface of the supporting platform 2.

[0213] In some embodiments of the present disclosure, in the pushing stroke determination step, the control module obtains the width data and length data in the blueprint of the sheet 100; the control module determines the pushing strokes of the first pushing member 311 and the second pushing member 321 according to the width data and the length data respectively.

[0214] In some embodiments of the present disclosure, in the pushing step, the control module controls the first direction driving device 312 and the second direction driving device 322 to start respectively; the control module controls the first direction driving device 312 and the second direction driving device 322 to move respectively according to the determined pushing stroke, thereby driving the first pushing member 311 and the second pushing member 321 to push the sheet 100 along the first direction and the second direction respectively until the sheet 100 abuts against the first reference surface 24 and the second reference surface 25.

[0215] Next, the battery production line provided by the embodiment of the present disclosure is described with reference to FIG8 .

[0216] FIG8 is a schematic diagram of a battery production line provided in some embodiments of the present disclosure.

[0217] As shown in Figure 8, an embodiment of the present disclosure also provides a battery production line, which includes a first paper tearing device 1000, a second paper tearing device 2000 and the above-mentioned gluing device, wherein the sheet material includes a thermal insulation pad, the thermal insulation pad has a first adhesive surface and a second adhesive surface, and the target position includes the surface of the battery cell; the first paper tearing device 1000 is used to tear off the first side of the release paper covering the first adhesive surface of the thermal insulation pad; the second paper tearing device 2000 is used to tear off the second side of the release paper covering the second adhesive surface of the thermal insulation pad.

[0218] The positioning mechanism of the gluing device positions the sheet 100 whose first side release paper is torn off by the first paper tearing device 1000 to expose the first adhesive surface. The sheet pasting mechanism 200 of the gluing device picks up the sheet 100 positioned by the positioning mechanism and pastes the sheet 100 to the surface of the battery cell. The second paper tearing device 2000 tears off the second side release paper of the sheet pasted on the battery cell.

[0219] In this way, the second adhesive surface of the sheet 100 exposed by tearing off the second release paper can be bonded to another portion to be bonded, which includes a battery cell, so that the thermal insulation pad is bonded between the two battery cells.

[0220] The above embodiments are intended only to illustrate the technical solutions of the present disclosure, and are not intended to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of the present disclosure, and are intended to be encompassed by the specification of the present disclosure. In particular, the various technical features described in the various embodiments may be combined in any manner, as long as there are no structural conflicts. Industrial Applicability

[0221] The present disclosure discloses a gluing device, a gluing method, and a battery production line. The gluing device includes a positioning mechanism and a sheet pasting mechanism. The positioning mechanism is used to position a sheet, and the sheet has an exposed first adhesive surface. The sheet pasting mechanism is used to pick up the sheet positioned by the positioning mechanism and paste the sheet to the target position of the component to be glued. The positioning mechanism includes a base, a supporting platform, and a pushing assembly. The supporting platform is provided on the base and is used to support the sheet. The first adhesive surface of the sheet contacts the supporting surface of the supporting platform. The supporting platform is provided with an anti-sticking structure, and the supporting surface of the supporting platform includes at least the supporting surface of the anti-sticking structure. The pushing assembly is provided on the base and is configured to be able to push the sheet along a first direction and a second direction intersecting the first direction under the drive of a driving device to position the sheet. The gluing device, gluing method, and battery production line provided by the present disclosure improve the assembly accuracy and compatibility of battery modules.

Claims

1. A glue - sticking device, comprising: A positioning mechanism for positioning a sheet, wherein the sheet has an exposed first bonding surface; And A sheet sticking mechanism for picking up the sheet positioned by the positioning mechanism and sticking the sheet to a target position of a component to be glued, wherein, The positioning mechanism includes: A base; A carrier table disposed on the base for carrying the sheet, the first bonding surface of the sheet being in contact with the carrying surface of the carrier table, the carrier table being provided with an anti - sticking structure, and the carrying surface of the carrier table at least includes the carrying surface of the anti - sticking structure; A pushing assembly, the pushing assembly being disposed on the base and configured to be able to push the sheet along a first direction and a second direction intersecting the first direction under the drive of a driving device to position the sheet; The anti - sticking structure includes a plurality of anti - sticking protrusions, and the plurality of anti - sticking protrusions are arranged at intervals.

2. The gluing device according to claim 1, wherein, The anti - sticking protrusions are in a strip structure, and the plurality of strip structures are parallel to each other and evenly distributed on the carrier table.

3. The gluing device according to claim 1 or 2, wherein, The anti - sticking structure includes an anti - sticking layer, and the anti - sticking layer is attached to the carrying surface of the carrier table.

4. The gluing device according to claim 3, wherein, The anti - sticking layer includes an anti - sticking coating.

5. The gluing device according to claim 4, wherein, The anti - sticking coating includes at least one of polytetrafluoroethylene, polyvinyl acetate, polyethylene, and silica gel materials.

6. The gluing device according to any one of claims 1 to 5, wherein, The carrier table further includes a first reference plane extending along the first direction and a second reference plane extending along the second direction, a plane where the first reference plane is located and a plane where the second reference plane is located intersect at a corner of the carrier table, and the pushing assembly is configured to push the sheet towards the first reference plane and / or the second reference plane so that the sheet abuts against the first reference plane and / or the second reference plane.

7. The glue - sticking device according to any one of claims 1 to 6, wherein, At least one carrier table is provided; The pushing assembly includes a first - direction pushing assembly and a second - direction pushing assembly, A first - direction pushing assembly and a second - direction pushing assembly are provided corresponding to each carrier table.

8. The glue - sticking device according to claim 7, wherein, The first - direction pushing assembly includes: A first pusher for contacting the sheet and pushing the sheet along the first direction; and A first connecting member connected to the first pusher, disposed on the base and capable of moving along the first direction under the drive of a first - direction driving device to push the first pusher; The second - direction pushing assembly includes: A second pusher for contacting the sheet and pushing the sheet along the second direction; and A second connecting member connected to the second pusher, disposed on the base and capable of moving along the second direction under the drive of a second - direction driving device to push the second pusher.

9. The glue - sticking device according to claim 8, wherein, The number of the carrier tables is multiple, and the multiple carrier tables are arranged at intervals along the first direction, The first connecting members of the respective first - direction pushing assemblies are connected to each other to form a first connecting plate, and the first connecting plate is connected to the output end of the first - direction driving device; The second connectors of the second-direction pushing components are connected to each other to form a second connecting plate, and the second connecting plate is connected to the output end of the second-direction driving device.

10. The gluing device according to claim 9, wherein, the gluing device further includes a control module, the control module determines the respective pushing strokes of the first pushing member and the second pushing member according to the size of the sheet, and controls the first pushing member and the second pushing member to move with their respective pushing strokes.

11. The gluing device according to any one of claims 8 to 10, wherein, Elastic buffer pads are provided on the first pushing member and the second pushing member, and the elastic buffer pads are used to contact the sheet.

12. The gluing device according to any one of claims 9 to 11, wherein, in the first connecting plate and the base, one is provided with a first sliding rail, and the other is provided with a first sliding block. The first sliding rail extends along the first direction, and the first sliding block is slidably connected to the first sliding rail; in the second connecting plate and the base, one is provided with a second sliding rail, and the other is provided with a second sliding block. The second sliding rail extends along the second direction, and the second sliding block is slidably connected to the second sliding rail.

13. The gluing device according to any one of claims 8 to 12, wherein, The carrier table is provided with a first avoidance groove extending along the first direction and a second avoidance groove extending along the second direction. The first avoidance groove and the second avoidance groove are respectively opened on the side surface of the carrier table. The first pushing member can extend into the first avoidance groove, and the second pushing member can extend into the second avoidance groove.

14. The gluing device according to any one of claims 1 to 13, wherein, The sheet pasting mechanism includes an adsorption device, and the adsorption device adsorbs the positioned sheet from the carrier table and pastes the sheet to the target position of the component to be glued.

15. The gluing device according to any one of claims 1 to 14, wherein, The sheet includes a heat insulation pad, and the component to be glued includes a battery cell.

16. A gluing method, using a gluing device to paste a sheet on a component to be glued. The sheet has a first bonding surface exposed after the release paper is torn off. The gluing device includes a positioning mechanism and a sheet pasting mechanism. The positioning mechanism includes a base, a carrier table and a pushing component. The carrier table is provided with an anti-adhesion structure. The bearing surface of the carrier table at least includes the bearing surface of the anti-adhesion structure. The anti-adhesion structure includes a plurality of anti-adhesion protrusions, and the plurality of anti-adhesion protrusions are arranged at intervals. The gluing method includes: A placing step of placing the sheet on the carrier table with the first bonding surface facing the anti-adhesion protrusions on the bearing surface of the carrier table; A pushing stroke determination step of determining the pushing strokes of the pushing component in the first direction and the second direction according to the size of the sheet; A pushing step of driving the pushing component to move with the pushing stroke by a driving device to push the sheet along the first direction and the second direction.

17. The pasting method according to claim 16, wherein, The gluing method further includes: A pasting step of the sheet pasting mechanism adsorbing the positioned sheet from the carrier table and pasting the sheet to the target position of the component to be glued.

18. The adhesive application method according to claim 17, wherein, The carrier table further includes a first reference plane extending along the first direction and a second reference plane extending along the second direction. The plane where the first reference plane is located and the plane where the second reference plane is located intersect at a corner of the carrier table. The pushing assembly is configured to push the sheet towards the first reference plane and / or the second reference plane so that the sheet abuts against the first reference plane and / or the second reference plane. The sheet pasting mechanism includes a first suction head and at least one second suction head; The pasting step includes: The first suction head sucks the corner of the positioned sheet near the intersection of the first reference plane and the second reference plane. At the same time, the second suction head sucks other parts of the sheet except this corner.

19. A battery production line, comprising: The gluing device according to any one of claims 1 to 15, wherein the sheet includes a heat insulation pad, the heat insulation pad has a first bonding surface and a second bonding surface, and the target position includes the surface of a battery cell; A first paper tearing device for tearing off the first surface release paper covering the first bonding surface of the heat insulation pad; A second paper tearing device for tearing off the second surface release paper covering the second bonding surface of the heat insulation pad; The positioning mechanism of the gluing device positions the sheet with the first bonding surface exposed after the first paper tearing device tears off the first surface release paper. The sheet pasting mechanism of the gluing device picks up the sheet positioned by the positioning mechanism and pastes the sheet onto the surface of the battery cell. The second paper tearing device tears off the second surface release paper of the sheet that has been pasted onto the battery cell.

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