Wrapping film end-closing device and battery production line

Abstract

A wrapping film end-closing device (100), comprising a base (10), a clamping mechanism (20), a first end-closing mechanism (30) and a second end-closing mechanism (40), wherein the clamping mechanism (20) is arranged on the base (10), the clamping mechanism (20) being configured to clamp a workpiece (300) wrapped with a wrapping film (200) having unclosed ends, the wrapping film (200) being provided with a first end-closing section (2001) and a second end-closing section (2002); and the first end-closing mechanism (30) and the second end-closing mechanism (40) are arranged on the base (10), the first end-closing mechanism (30) and the second end-closing mechanism (40) being configured to attach the first end-closing section (2001) and the second end-closing section (2002) to the same surface of the workpiece, respectively. The clamping mechanism (20) can clamp the workpiece (300) wrapped with the wrapping film (200) having unclosed ends, so as to fix the position of the workpiece (300), such that the workpiece (300) is more stable during a wrapping film end-closing process. The first end-closing mechanism (30) and the second end-closing mechanism (40) can attach the first end-closing section (2001) and the second end-closing section (2002) to the same surface of the workpiece, respectively, thereby achieving end-closing of the workpiece (300), and both end-closing operations can be performed while the workpiece (300) is being clamped by the clamping mechanism (20). A battery production line, comprising the wrapping film end-closing device (100). In this way, both end-closing operations can be performed while the workpiece is being clamped by the clamping mechanism; thus, the end-closing process is simple and convenient, and the end-closing efficiency is high.

Description

Film finishing device and battery production line

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410241094.5, filed on March 1, 2024, entitled “Film wrapping device and battery production line,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of film coating technology, and more specifically, to a film coating finishing device and a battery production line. Background Art

[0004] Coating technology refers to the technology of coating the surface of a workpiece or a group of workpieces with a coating to provide protection, insulation, and aesthetics to the workpiece. In order to achieve an annular coating of the workpiece, the coating needs to be wrapped around the workpiece and both ends of the coating need to be attached to the same surface of the workpiece. Currently, the finishing of the two ends of the coating is cumbersome and the efficiency of the coating is low.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a film finishing device and a battery production line, which can effectively improve the film finishing efficiency.

[0007] In a first aspect, an embodiment of the present application provides a film finishing device, comprising a base, a clamping mechanism, a first finishing mechanism and a second finishing mechanism; the clamping mechanism is arranged on the base, and the clamping mechanism is used to clamp a workpiece covered with an unfinished film, and the film has a first finishing section and a second finishing section; the first finishing mechanism and the second finishing mechanism are arranged on the base, and the first finishing mechanism and the second finishing mechanism are respectively used to attach the first finishing section and the second finishing section to the same surface of the workpiece.

[0008] In the above technical solution, the clamping mechanism can clamp a workpiece coated with an unfinished film, thereby fixing the workpiece's position and stabilizing the workpiece during film finishing. This reduces the risk of workpiece movement during film finishing and affecting the film finishing yield. The first and second closing mechanisms can respectively attach the first and second closing segments to the same surface of the workpiece to complete the film finishing of the workpiece. Both closing actions can be performed while the clamping mechanism is holding the workpiece, simplifying the closing process and increasing closing efficiency.

[0009] In some embodiments, the first closing mechanism and the second closing mechanism are disposed opposite each other along a first direction. The first closing mechanism includes a first driving component and a first closing component, the first closing component being movably disposed on a base along the first direction, the first driving component being configured to drive the first closing component to move toward the second closing mechanism so that the first closing component attaches the first closing segment to the workpiece; and / or the second closing mechanism includes a second driving component and a second closing component, the second closing component being movably disposed on the base along the first direction, the second driving component being configured to drive the second closing component to move toward the first closing mechanism so that the second closing component attaches the second closing segment to the workpiece. By driving the first closing component to move in the first direction by the first driving component, the first closing segment can be attached to the workpiece by the first closing component, thereby completing the first closing segment. By driving the second closing component to move in the first direction by the second driving component, the second closing segment can be attached to the workpiece by the second closing component, thereby completing the second closing segment. By arranging the first closing mechanism and the second closing mechanism relative to each other along the first direction, a gap exists between the first closing mechanism and the second closing mechanism, thereby facilitating the workpiece to undergo a closing process between the first closing mechanism and the second closing mechanism. The first closing mechanism and the second closing mechanism can move toward or away from each other along the first direction, thereby completing the closing of the first closing segment and the second closing segment when the workpiece is in the same position. This simplifies the closing process, improves the closing action efficiency, and improves the efficiency of film closing.

[0010] In some embodiments, the first finishing component includes a first movable seat and a first finishing roller, the first finishing roller is rotatably disposed on the first movable seat, and the first driving component is configured to drive the first movable seat to move along the first direction so that the first finishing roller rolls the first finishing section; and / or, the second finishing component includes a second movable seat and a second finishing roller, the second finishing roller is rotatably disposed on the second movable seat, and the second driving component is configured to drive the second movable seat to move along the first direction so that the second finishing roller rolls the second finishing section. The first driving member is driven by the first movable seat to move along the first direction, and the first movable seat moves more stably along the first direction, and the first movable seat can drive the first finishing roller to move along the first direction, so that the first finishing roller rolls the first finishing section, thereby achieving the finishing of the first finishing section; the first finishing roller is rotatably arranged on the first movable seat, and when the first finishing roller contacts the first finishing section, the first finishing roller rolls on the first finishing section, reducing the risk of the first finishing roller damaging the envelope; the second driving member is driven by the second movable seat to move along the first direction, and the second movable seat moves more stably along the first direction, and the second movable seat can drive the second finishing roller to move along the first direction, so that the second finishing roller rolls the second finishing section, thereby achieving the finishing of the second finishing section; the second finishing roller is rotatably arranged on the second movable seat, and when the second finishing roller contacts the second finishing section, the second finishing roller rolls on the second finishing section, reducing the risk of the second finishing roller damaging the envelope.

[0011] In some embodiments, the clamping mechanism includes a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion being arranged relative to each other along a first direction, and the first clamping portion and the second clamping portion being used to cooperate in clamping the workpiece. By arranging the first clamping portion and the second clamping portion relative to each other along the first direction, the first clamping portion and the second clamping portion can cooperate in clamping the workpiece along the first direction, the first closing component and the second closing component can respectively close the first closing section and the second closing section along the first direction, the clamping direction of the clamping mechanism and the action direction of the closing action can be in the same direction, and the first clamping portion and the second clamping portion can respectively clamp the outside of the workpiece's envelope, reducing the risk of the first clamping portion or the second clamping portion clamping other positions of the envelope, causing the envelope to stick to the first clamping portion or the second clamping portion, thereby improving the yield rate of the workpiece envelope.

[0012] In some embodiments, the base is provided with a loading platform, which is used to carry the workpiece. The clamping mechanism is movably provided on the base, and the clamping mechanism is configured to transfer the workpiece on the loading platform to the position to be finished. The first finishing mechanism and the second finishing mechanism are respectively used to attach the first finishing section and the second finishing section to the same surface of the workpiece located at the position to be finished. By providing the loading platform, the loading platform can provide the clamping mechanism with a workpiece covered with an unfinished film; the loading platform is used to carry the workpiece, and the workpiece can be placed on the loading platform; the clamping mechanism is movably provided on the base, and the clamping mechanism can move to the loading platform to pick up the workpiece, or move the workpiece to the position to be finished, so that the first finishing mechanism and the second finishing mechanism can finish the first finishing section and the second finishing section; the clamping mechanism moves to the position to be finished to complete the finishing of the first finishing section and the second finishing section, thereby reducing the time required for finishing workstations and the movement of the clamping mechanism, and improving finishing efficiency.

[0013] In some embodiments, the first and second closing mechanisms are respectively arranged on both sides of the loading platform along the first direction, and the clamping mechanism is movably arranged on the base along the second direction, the second direction being perpendicular to the first direction. By arranging the first and second closing mechanisms respectively on both sides of the loading platform along the first direction, the first direction being perpendicular to the second direction, and the moving direction of the clamping mechanism being perpendicular to the arrangement direction of the first and second closing mechanisms, it is facilitated for the clamping mechanism to pass through the waiting closing position between the first and second closing mechanisms; when the workpiece is clamped and moved along the second direction, the first and second closing mechanisms are respectively located on both sides of the workpiece along the first direction, and the first and second closing mechanisms can respectively close the first and second closing sections on the workpiece along the first direction, making the closing action simple and quick, thereby improving the closing efficiency.

[0014] In some embodiments, the loading platform includes a conveying mechanism configured to convey the workpiece in a second direction. By providing the conveying mechanism, the conveying mechanism can continuously provide the clamping mechanism with workpieces coated with unfinished film. The conveying mechanism conveys the workpiece in the second direction, and the conveying direction of the workpiece is consistent with the movement direction of the clamping mechanism, thereby reducing interference with the workpiece conveyance by the first and second finishing mechanisms.

[0015] In some embodiments, the clamping mechanism includes a first clamping portion, a second clamping portion, and a third driving component. The first clamping portion and the second clamping portion are arranged relative to each other along a first direction. The first clamping portion and the second clamping portion are used to cooperate in clamping the workpiece. The second clamping portion is located below the first clamping portion. The third driving component is used to drive the second clamping portion to move closer to or away from the first clamping portion. By arranging the first clamping portion and the second clamping portion relative to each other along the first direction, the first clamping portion and the second clamping portion can clamp the workpiece along the first direction; by arranging the third driving component, the third driving component can drive the second clamping portion to move. The second clamping portion is located below the first clamping portion. The second clamping portion can move upward to lift the workpiece located on the loading platform. Subsequently, the second clamping portion and the first clamping portion cooperate to clamp the workpiece to achieve the transfer of the workpiece. The workpiece on the loading platform is lifted by the second clamping portion to detach from the loading platform, thereby reducing the risk of damaging the workpiece when the clamping mechanism clamps the workpiece on the loading platform.

[0016] In some embodiments, there are two clamping mechanisms, which are arranged relative to each other along a third direction. The clamping mechanisms are movably mounted on the base along a second direction, the second direction being perpendicular to the third direction. By providing two clamping mechanisms and arranging them relative to each other along the third direction, the two clamping mechanisms can clamp the workpiece, providing more stable clamping of the workpiece and more controllable positioning of the workpiece. The relative arrangement of the clamping mechanisms along the third direction reduces interference with the film finish, thereby improving the yield rate of the first film portion.

[0017] In some embodiments, the first and second closing mechanisms are disposed on either side of the loading platform along a first direction, with the second and third directions being perpendicular to the first direction. By disposing the first and second closing mechanisms along the first direction, the clamping mechanism moving along the second direction, and two clamping mechanisms disposed along the third direction, the film wrapping and closing action becomes simpler and more rational, the clamping mechanism installation becomes more convenient, and the film wrapping and closing efficiency is improved.

[0018] In some embodiments, the film wrapping and finishing device further includes two drive mechanisms, each configured to drive the two clamping mechanisms to move in the second direction. By providing two drive mechanisms, each driving the clamping mechanisms to move in the second direction, the drive mechanisms can independently drive the clamping mechanisms to move, allowing one clamping mechanism to finish a workpiece but before unloading it while the other clamping mechanism picks up the unfinished film-wrapped workpiece on the loading platform, thereby improving the efficiency of workpiece wrapping.

[0019] In a second aspect, an embodiment of the present application provides a battery production line, comprising the film finishing device provided by any embodiment of the first aspect.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0022] FIG1 is a schematic structural diagram of a film wrapping and finishing device provided in some embodiments of the present application;

[0023] FIG2 is a schematic diagram of the structure of a workpiece and a membrane provided in some embodiments of the present application;

[0024] FIG3 is a schematic structural diagram of a clamping mechanism provided in some embodiments of the present application;

[0025] In the drawings, the drawings are not drawn to scale.

[0026] Markings: 1-mounting platform; 11-ground rail; 2-mounting frame; 21-first slide rail; 22-second slide rail; 10-base; 20-clamping mechanism; 201-first clamping part; 202-second clamping part; 203-third driving component; 204-mounting seat; 30-first closing mechanism; 301-first driving component; 302-first closing component; 3021-first movable seat; 3022-first closing roller; 40-second closing mechanism; 401-second driving component; 402- Second finishing component; 4021-second movable seat; 4022-second finishing roller; 50-loading platform; 501-conveyor mechanism; 60-driving mechanism; 100-encapsulation finishing device; 200-encapsulation; 2001-first finishing section; 2002-second finishing section; 300-workpiece; 3001-battery cell; 30011-electrode terminal; 30012-pressure relief mechanism; 30013-top surface; 30014-side surface; X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0027] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0029] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0030] 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 application. 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.

[0031] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces), unless otherwise clearly and specifically defined.

[0032] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," 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; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0033] The term "multiple" in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0034] When a workpiece is undergoing a coating process, multiple films can be used to coat one or more surfaces of the workpiece to achieve overall or circumferential coating of the workpiece's outer surface. Coating the workpiece helps improve the workpiece's insulation, anti-collision, anti-scratch performance, and aesthetics.

[0035] Taking the battery cell as an example, the outer wall of the battery cell is annularly wrapped. This film can reduce the risk of short circuits in the battery cell and facilitate the safe transportation of the battery cell. At the same time, identification information can be printed on the outer surface of the film. During the battery cell wrapping process, the battery cell moves toward the stretched film and abuts the middle of the film. The film deforms and initially wraps the battery cell. After the film is cut, two tails of the film remain on the battery cell. The two tails of the film are attached to similar positions on the same surface of the battery cell or the two tails are partially overlapped to achieve an annular wrapping of the battery cell. During the wrapping of the battery cell, the wrapping needs to be completed at different workstations or by switching the position of the battery cell multiple times. The wrapping action is discontinuous and the wrapping efficiency is low.

[0036] In view of this, an embodiment of the present application provides a film finishing device, which arranges a clamping mechanism for clamping the workpiece on a base, and arranges a first finishing mechanism and a second finishing mechanism on the base. The first finishing mechanism and the second finishing mechanism can respectively attach the two finishing sections of the film to the same surface of the workpiece, thereby realizing the finishing of the film. The finishing of the film can be carried out under the clamping of the clamping mechanism, which simplifies the film finishing process and improves the film finishing efficiency.

[0037] The specific structure of the film wrapping and finishing device is described in detail below with reference to the accompanying drawings.

[0038] Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the structure of a film finishing device 100 provided in some embodiments of the present application; Figure 2 is a schematic diagram of the structure of a workpiece 300 and a film 200 provided in some embodiments of the present application. The present application provides a film finishing device 100 in an embodiment, which includes a base 10, a clamping mechanism 20, a first closing mechanism 30, and a second closing mechanism 40. The clamping mechanism 20 is disposed on the base 10 and is used to clamp the workpiece 300 coated with an unfinished film 200. The film 200 has a first closing section 2001 and a second closing section 2002. The first closing mechanism 30 and the second closing mechanism 40 are disposed on the base 10 and are used to attach the first closing section 2001 and the second closing section 2002 to the same surface of the workpiece 300, respectively.

[0039] The base 10 may be a mounting cabinet, a mounting rack, a mounting table, or a combination of any two or three thereof.

[0040] As an example, as shown in FIG1 , the base 10 includes a mounting platform 1 and a mounting frame 2 , the mounting frame 2 is connected to the mounting platform 1 , the clamping mechanism 20 is provided on the mounting platform 1 , and the first finishing mechanism 30 and the second finishing mechanism 40 are provided on the mounting frame 2 .

[0041] The number of the clamping mechanism 20 can be one, with one clamping mechanism 20 clamping the workpiece 300 for the first and second closing mechanisms 30 and 40 to close the film 200; or the number of the clamping mechanism 20 can be multiple, with multiple clamping mechanisms 20 clamping the workpiece 300 for the first and second closing mechanisms 30 and 40 to close the film 200. The clamping mechanism 20 can be fixedly mounted on the mounting table 1 of the base 10, with the clamping mechanism 20 clamping the workpiece 300 at a fixed position to facilitate closing the film 200; or the clamping mechanism 20 can be movably mounted on the mounting table 1 of the base 10, with the clamping mechanism 20 clamping the workpiece 300 and moving it to a position to be closed for closing the film 200. The clamping mechanism 20 may include two clamping parts, which are brought into close proximity to clamp the workpiece 300. The clamping mechanism 20 may also include a power element, which can control one or both of the two clamping parts to move closer or further away from each other to clamp the workpiece 300. The power element may be powered by a motor, a cylinder, a hydraulic cylinder, or the like. The clamping mechanism 20 may clamp the outer surface of the workpiece 300 coated with the coating 200, thereby clamping the clamping mechanism 20 on the outer surface of the coating 200. The clamping mechanism 20 may also clamp the outer surface of the workpiece 300 not coated with the coating 200, thereby directly contacting the workpiece 300.

[0042] The first and second closing mechanisms 30 and 40 are respectively used to close the first and second closing segments 2001 and 2002 of the envelope 200. The first closing mechanism 30 may include a first closing member, which moves to attach the first closing segment 2001 to the surface of the workpiece 300. The first closing member can close the first closing segment 2001 in various ways. For example, the first closing member may move linearly, contacting the first closing segment 2001 to attach the first closing segment 2001 to the surface of the workpiece 300. The first closing member may also swing on the side of the workpiece 300 to which the first closing segment 2001 is attached, with the first closing segment 2001 positioned along the swinging path of the first closing member, to attach the first closing segment 2001 to the surface of the workpiece 300. The second closing mechanism 40 may include a second closing member, which moves to attach the second closing segment 2002 to the surface of the workpiece 300. The second finishing piece can achieve the finishing of the second finishing segment 2002 in a variety of ways. For example, the second finishing piece can move in a straight line so that the second finishing piece contacts the second finishing segment 2002 to attach the second finishing segment 2002 to the surface of the workpiece 300; the second finishing piece can also swing on the side of the workpiece 300 to which the second finishing segment 2002 is attached, and the second finishing segment 2002 is located on the swinging path of the second finishing piece to attach the second finishing segment 2002 to the surface of the workpiece 300.

[0043] The workpiece 300 may have multiple surfaces. For example, if the workpiece 300 is a rectangular parallelepiped, the coating 200 surrounds all four surfaces of the workpiece 300 and completes the first and second closing sections 2001 and 2002 on one of the surfaces. The workpiece 300 may also have only one surface. For example, if the workpiece 300 is spherical, the coating 200 covers the outer surface of the workpiece 300, and the first and second closing sections 2001 and 2002 close to the surface of the workpiece 300. The edges of the first and second closing sections 2001 and 2002 may abut or partially overlap.

[0044] As an example, workpiece 300 is a battery cell 3001, and film 200 is an insulating film used to cover battery cell 3001. Battery cell 3001 has a top surface 30013 equipped with electrode terminals 30011 and a pressure relief mechanism 30012, and four side surfaces 30014 surrounding top surface 30013. Top surface 30013 and four side surfaces 30014 are all surfaces of battery cell 3001, and all four side surfaces 30014 are connected to top surface 30013. Film 200 surrounds side surfaces 30014 to provide insulation protection for battery cell 3001. As shown in FIG2 , film 200 covers three side surfaces 30014 of battery cell 3001, and first and second end sections 2001, 2002 are to be covered on the other side surface 30014 of battery cell 3001. The wrapping and finishing device 100 is used to wrap the first finishing section 2001 and the second finishing section 2002 on the same side surface 30014 of the battery cell 3001 .

[0045] In the embodiment of the present application, the clamping mechanism 20 can clamp a workpiece 300 coated with an unfinished film 200, thereby fixing the position of the workpiece 300. This allows the workpiece 300 to be more stable during the film 200 finishing process, reducing the risk of movement of the workpiece 300 during the film 200 finishing process, thereby affecting the yield of the film 200 finishing process. The first finishing mechanism 30 and the second finishing mechanism 40 can respectively attach the first finishing section 2001 and the second finishing section 2002 to the same surface of the workpiece 300 to complete the film 200 finishing of the workpiece 300. Both finishing operations can be performed while the clamping mechanism 200 is clamping the workpiece 300, simplifying the finishing process and improving finishing efficiency.

[0046] In some embodiments, the first closing mechanism 30 and the second closing mechanism 40 are disposed opposite each other along the first direction X. The first closing mechanism 30 includes a first driving component 301 and a first closing component 302. The first closing component 302 is movably disposed on the base 10 along the first direction X. The first driving component 301 is configured to drive the first closing component 302 to move toward the second closing mechanism 40 so that the first closing component 302 attaches the first closing segment 2001 to the workpiece 300. And / or, the second closing mechanism 40 includes a second driving component 401 and a second closing component 402. The second closing component 402 is movably disposed on the base 10 along the first direction X. The second driving component 401 is configured to drive the second closing component 402 to move toward the first closing mechanism 30 so that the second closing component 402 attaches the second closing segment 2002 to the workpiece 300.

[0047] The first direction X can be the height direction of the film wrapping tailing device 100, the first tailing mechanism 30 and the second tailing mechanism 40 are arranged relatively along the height direction of the film wrapping tailing device 100, and the first tailing component 302 and the second tailing component 402 are respectively movably arranged on the mounting frame 2 along the height direction of the film wrapping tailing device 100; it can also be the width direction of the film wrapping tailing device 100, the first tailing mechanism 30 and the second tailing mechanism 40 are arranged relatively along the width direction of the film wrapping tailing device 100, and the first tailing component 302 and the second tailing component 402 are respectively movably arranged on the mounting frame 2 along the width direction of the film wrapping tailing device 100; it can also be the length direction of the film wrapping tailing device 100, the first tailing mechanism 30 and the second tailing mechanism 40 are arranged relatively along the length direction of the film wrapping tailing device 100, and the first tailing component 302 and the second tailing component 402 are respectively movably arranged on the mounting frame 2 along the length direction of the film wrapping tailing device 100.

[0048] As an example, as shown in Figure 1, the first direction X is the height direction of the film finishing device 100, the second direction Y is the length direction of the film finishing device 100, and the third direction Z is the width direction of the film finishing device 100. The first finishing mechanism 30 and the second finishing mechanism 40 are arranged along the height direction of the film finishing device 100, and the two and the clamping mechanism 20 are arranged along the length direction of the film finishing device 100. The clamping mechanism 20 clamps the workpiece 300, and the first finishing mechanism 30 and the second finishing mechanism 40 can respectively attach the first finishing segment 2001 and the second finishing segment 2002 to the workpiece 300 along the first direction X.

[0049] The first driving component 301 is used to drive the first closing component 302 to move along the first direction X. The first driving component 301 can be a hydraulic cylinder, a pneumatic cylinder, a motor, etc. The first closing component 302 can include a mounting portion and a closing portion for contacting the first closing section 2001. The closing portion can be fixedly mounted on the mounting portion, and the first driving component 301 drives the mounting portion to move, thereby driving the closing portion to move; the closing portion can also be movably mounted on the mounting portion, and the first driving component 301 drives the mounting portion to move, thereby driving the closing portion to move. The first driving component 301 can guide the mounting portion of the first closing component 302 to move on the mounting frame 2 of the base 10, or the mounting portion of the first closing component 302 can be slidably mounted on the mounting frame 2, and the first closing component 302 is guided to move along the first direction X through the sliding cooperation between the mounting portion and the mounting frame 2.

[0050] The second driving component 401 is used to drive the second closing component 402 to move along the first direction X. The second driving component 401 can be a hydraulic cylinder, a pneumatic cylinder, a motor, etc. The second closing component 402 can include a mounting portion and a closing portion for contacting the second closing section 2002. The closing portion can be fixedly mounted on the mounting portion, and the second driving component 401 drives the mounting portion to move, thereby driving the closing portion to move; the closing portion can also be movably mounted on the mounting portion, and the second driving component 401 drives the mounting portion to move, thereby driving the closing portion to move. The second driving component 401 can guide the mounting portion of the second closing component 402 to move on the mounting frame 2 of the base 10, or the mounting portion of the second closing component 402 can be slidably mounted on the mounting frame 2, and the second closing component 402 is guided to move along the first direction X through the sliding fit between the mounting portion and the mounting frame 2.

[0051] The first closing component 302 is driven to move along the first direction X by the first driving component 301, and the first closing segment 2001 can be attached to the workpiece 300 by the first closing component 302, thereby achieving the closing of the first closing segment 2001; the second closing component 402 is driven to move along the first direction X by the second driving component 401, and the second closing segment 2002 can be attached to the workpiece 300 by the second closing component 402, thereby achieving the closing of the second closing segment 2002; by arranging the first closing mechanism 30 and the second closing mechanism 40 relative to each other along the first direction X, a gap is provided between the first closing mechanism 30 and the second closing mechanism 40, so that the workpiece 300 can be finished between the first closing mechanism 30 and the second closing mechanism 40. The first finishing component 302 and the second finishing component 402 can approach or move away from each other along the first direction X to achieve the finishing of the first finishing section 2001 and the second finishing section 2002 when the workpiece 300 is in the same position. The finishing process is simple and the finishing action is efficient, thereby improving the finishing efficiency of the package 200.

[0052] In some embodiments, the first finishing component 302 includes a first movable seat 3021 and a first finishing roller 3022, the first finishing roller 3022 is rotatably disposed on the first movable seat 3021, and the first driving component 301 is configured to drive the first movable seat 3021 to move along the first direction X so that the first finishing roller 3022 rolls the first finishing section 2001; and / or, the second finishing component 402 includes a second movable seat 4021 and a second finishing roller 4022, the second finishing roller 4022 is rotatably disposed on the second movable seat 4021, and the second driving component 401 is configured to drive the second movable seat 4021 to move along the first direction X so that the second finishing roller 4022 rolls the second finishing section 2002.

[0053] As an example, as shown in FIG1 , the mounting frame 2 is provided with a first slide rail 21 extending along a first direction X. A first movable seat 3021 is slidably disposed on the first slide rail 21. A first driving component 301 is a hydraulic cylinder, the output end of which is connected to the first movable seat 3021. A first finishing roller 3022 is rotatably disposed on the first movable seat 3021. The first driving component 301 drives the first movable seat 3021 to move along the first direction X, so that the first finishing roller 3022 sweeps across the area where the first finishing segment 2001 is located, thereby attaching the first finishing segment 2001 to the workpiece 300. In an embodiment in which the first finishing component 302 includes a mounting portion and a finishing portion, the mounting portion may be the first movable seat 3021, and the finishing portion may be the first finishing roller 3022.

[0054] As an example, as shown in FIG1 , the mounting frame 2 is provided with a second slide rail 22, which extends along a first direction X. The second movable seat 4021 is slidably provided on the second slide rail 22. The second driving component 401 is a motor, and the output end of the second driving component 401 is connected to the second movable seat 4021. The second finishing roller 4022 is rotatably provided on the second movable seat 4021. The second driving component 401 drives the second movable seat 4021 to move along the second direction Y, so that the second finishing roller 4022 sweeps across the area where the second finishing section 2002 is located, thereby attaching the second finishing section 2002 to the workpiece 300. In an embodiment in which the second finishing component 402 includes a mounting portion and a finishing portion, the mounting portion may be the second movable seat 4021, and the finishing portion may be the second finishing roller 4022.

[0055] The first movable seat 3021 is driven to move along the first direction X by the first driving component 301. The first movable seat 3021 moves more stably along the first direction X. The first movable seat 3021 can drive the first finishing roller 3022 to move along the first direction X, so that the first finishing roller 3022 rolls the first finishing section 2001, thereby completing the finishing of the first finishing section 2001. The first finishing roller 3022 is rotatably disposed on the first movable seat 3021. When the first finishing roller 3022 contacts the first finishing section 2001, the first finishing roller 3022 rolls on the first finishing section 2001, thereby reducing the risk of the first finishing roller 3022 damaging the envelope 200. The second movable seat 4021 is driven to move along the first direction X by the second driving component 401. The second movable seat 4021 moves more stably along the first direction X. The second movable seat 4021 can drive the second finishing roller 4022 to move along the first direction X, so that the second finishing roller 4022 rolls the second finishing section 2002, thereby achieving the finishing of the second finishing section 2002; the second finishing roller 4022 is rotatably arranged on the second movable seat 4021. When the second finishing roller 4022 contacts the second finishing section 2002, the second finishing roller 4022 rolls on the second finishing section 2002, reducing the risk of the second finishing roller 4022 damaging the envelope 200.

[0056] In some embodiments, the clamping mechanism 20 includes a first clamping portion 201 and a second clamping portion 202 . The first clamping portion 201 and the second clamping portion 202 are arranged opposite to each other along a first direction X. The first clamping portion 201 and the second clamping portion 202 are used to cooperate in clamping the workpiece 300 .

[0057] The first clamping part 201 may move toward the second clamping part 202 to clamp the workpiece 300 ; the second clamping part 202 may move toward the first clamping part 201 to clamp the workpiece 300 ; or the first clamping part 201 and the second clamping part 202 may move toward each other to clamp the workpiece 300 .

[0058] By arranging the first clamping part 201 and the second clamping part 202 relative to each other along the first direction X, the first clamping part 201 and the second clamping part 202 can cooperate to clamp the workpiece 300 along the first direction X, and the first closing component 302 and the second closing component 402 can respectively realize the closing of the first closing section 2001 and the second closing section 2002 along the first direction X. The clamping direction of the clamping mechanism 20 and the action direction of the closing action can be in the same direction, so the first clamping part 201 and the second clamping part 202 can respectively clamp the outside of the coating 200 of the workpiece 300, reducing the risk of the first clamping part 201 or the second clamping part 202 clamping other positions of the coating 200 so that the coating 200 sticks to the first clamping part 201 or the second clamping part 202, thereby improving the yield of the coating 200 of the workpiece 300.

[0059] In some embodiments, the base 10 is provided with a loading platform 50 for supporting the workpiece 300. The clamping mechanism 20 is movably provided on the base 10 and is configured to transfer the workpiece 300 on the loading platform 50 to a position to be finished. The first finishing mechanism 30 and the second finishing mechanism 40 are respectively used to attach the first finishing segment 2001 and the second finishing segment 2002 to the same surface of the workpiece 300 in the position to be finished.

[0060] The loading platform 50 can be a workbench, on which the workpiece 300 is placed; the loading platform 50 can also be a conveyor belt, on which the workpiece 300 is transported, so that the clamping mechanism 20 can pick up the workpiece 300. It is understood that a loading position can be set on the loading platform 50, and the clamping mechanism 20 can pick up the workpiece 300 at the loading position. The loading position can be a single position or multiple positions. The waiting position is a position through which the clamping mechanism 20 can carry the workpiece 300. The waiting position is located in the travel path of the first finishing roller 3022 and the second finishing roller 4022. The loading platform 50 is used to carry the workpiece 300. The loading platform 50 and the workpiece 300 are arranged along the height direction of the film finishing device 100.

[0061] The clamping mechanism 20 may be moved on the mounting platform 1 of the base 10 by manual movement, or the clamping mechanism 20 may be moved on the mounting platform 1 of the base 10 by an additional drive, wherein the drive may be a cylinder, a hydraulic cylinder, a motor, etc.

[0062] By setting up a loading platform 50, the loading platform 50 can provide the clamping mechanism 20 with a workpiece 300 covered with an unfinished coating 200; the loading platform 50 is used to carry the workpiece 300, and the workpiece 300 can be placed on the loading platform 50; the clamping mechanism 20 is movably set on the base 10, and the clamping mechanism 20 can move to the loading platform 50 to pick up the workpiece 300, or move the workpiece 300 to the waiting position, so that the first finishing mechanism 30 and the second finishing mechanism 40 can finish the first finishing section 2001 and the second finishing section 2002; the clamping mechanism 20 moves to the waiting position to finish, so as to realize the finishing of the first finishing section 2001 and the second finishing section 2002, thereby reducing the workstation required for finishing and the movement time of the clamping mechanism 20, and improving the finishing efficiency.

[0063] In some embodiments, the first closing mechanism 30 and the second closing mechanism 40 are respectively arranged on both sides of the loading platform 50 along the first direction X, and the clamping mechanism 20 is movably arranged on the base 10 along the second direction Y, and the second direction Y is perpendicular to the first direction X.

[0064] The workpiece 300 may be stationary on the loading platform 50, and the clamping mechanism 20 may move along the second direction Y to approach and clamp the workpiece 300 on the loading platform 50. Alternatively, the workpiece 300 may be movable on the loading platform 50, moving to a position to be picked up by the clamping mechanism 20 for easy clamping. In embodiments where the workpiece 300 is movable on the loading platform 50, the workpiece 300 may be moved along the second direction Y to reach the position to be picked up, or it may be moved along the first direction X to reach the position to be picked up. The second direction Y intersects the first direction X.

[0065] As an example, as shown in Figure 1, the first tailing mechanism 30 and the second tailing mechanism 40 are arranged on both sides of the loading platform 50 along the height direction of the film finishing device 100, and the clamping mechanism 20 is movably arranged on the base 10 along the length direction of the film finishing device 100.

[0066] By arranging the first closing mechanism 30 and the second closing mechanism 40 on both sides of the loading platform 50 along the first direction X, the first direction X is perpendicular to the second direction Y, and the moving direction of the clamping mechanism 20 is perpendicular to the setting direction of the first closing mechanism 30 and the second closing mechanism 40, it is helpful for the clamping mechanism 20 to pass through the waiting closing position between the first closing mechanism 30 and the second closing mechanism 40; when the clamped workpiece 300 moves along the second direction Y, the first closing mechanism 30 and the second closing mechanism 40 are respectively located on both sides of the workpiece 300 along the first direction X, and the first closing mechanism 30 and the second closing mechanism 40 can respectively close the first closing section 2001 and the second closing section 2002 on the workpiece 300 along the first direction X. The closing action is simple and quick, thereby improving the closing efficiency.

[0067] In some embodiments, the loading platform 50 includes a conveying mechanism 501 , which is configured to convey the workpiece 300 along the second direction Y.

[0068] As an example, as shown in FIG1 , the conveying mechanism 501 conveys the workpiece 300 along the second direction Y, facilitating the workpiece 300 to reach the to-be-picked position on the loading platform 50 for pickup by the clamping mechanism 20. Along the third direction Z, the size of the conveying mechanism 501 is smaller than that of the workpiece 300, thereby facilitating the clamping mechanism 20 to grip the workpiece 300.

[0069] By setting up a conveying mechanism 501, the conveying mechanism 501 can continuously provide the clamping mechanism 20 with the workpiece 300 covered with the unfinished film 200. The conveying mechanism 501 conveys the workpiece 300 along the second direction Y. The conveying direction of the workpiece 300 is consistent with the moving direction of the clamping mechanism 20, reducing the interference of the first finishing mechanism 30 and the second finishing mechanism 40 in the conveying of the workpiece 300.

[0070] In some embodiments, please refer to FIG3 , which is a schematic diagram of the structure of a clamping mechanism 20 provided in some embodiments of the present application. The clamping mechanism 20 includes a first clamping portion 201, a second clamping portion 202, and a third driving component 203. The first clamping portion 201 and the second clamping portion 202 are arranged opposite each other along a first direction X. The first clamping portion 201 and the second clamping portion 202 are used to cooperate in clamping a workpiece 300. The second clamping portion 202 is located below the first clamping portion 201. The third driving component 203 is used to drive the second clamping portion 202 toward or away from the first clamping portion 201.

[0071] The first clamping part 201 can be fixed to the clamping mechanism 20, and the workpiece 300 can be clamped by moving the second clamping part 202; the first clamping part 201 can also be movably set on the clamping mechanism 20, and the workpiece 300 can be clamped by the first clamping part 201 and the second clamping part 202 moving closer to or farther away from each other.

[0072] The third driving component 203 can be a motor, a cylinder, a hydraulic cylinder, etc.

[0073] By relatively arranging the first clamping portion 201 and the second clamping portion 202 along the first direction X, the first clamping portion 201 and the second clamping portion 202 can clamp the workpiece 300 along the first direction X; by arranging the third driving component 203, the third driving component 203 can drive the second clamping portion 202 to move, and the second clamping portion 202 is located below the first clamping portion 201. The second clamping portion 202 can move upward to lift the workpiece 300 located on the loading platform 50, and then the second clamping portion 202 and the first clamping portion 201 cooperate to clamp the workpiece 300 to realize the transfer of the workpiece 300. The workpiece 300 on the loading platform 50 is lifted by the second clamping portion 202 to detach from the loading platform 50, thereby reducing the risk of damaging the workpiece 300 when the clamping mechanism 20 clamps the workpiece 300 on the loading platform 50.

[0074] In some embodiments, there are two clamping mechanisms 20 , which are arranged opposite to each other along the third direction Z. The clamping mechanisms 20 are movably arranged on the base 10 along the second direction Y, and the second direction Y is perpendicular to the third direction Z.

[0075] The third direction Z can be the height direction of the film finishing device 100, and the two clamping mechanisms 20 are respectively arranged above and below the position to be finished; the third direction Z can also be the width direction of the film finishing device 100, and the two clamping mechanisms 20 are respectively located on both sides of the position to be finished along the width direction.

[0076] By setting up two clamping mechanisms 20 and arranging the two clamping mechanisms 20 relatively along the third direction Z, the two clamping mechanisms 20 can clamp the workpiece 300, making the clamping of the workpiece 300 more stable and the position of the workpiece 300 more controllable. The clamping mechanisms 20 are arranged relatively along the third direction Z, reducing the interference of the clamping mechanisms 20 on the finishing of the package 200 and improving the yield of the first part of the package 200.

[0077] In some embodiments, the first finishing mechanism 30 and the second finishing mechanism 40 are respectively arranged on both sides of the loading platform 50 along the first direction X, and the second direction Y and the third direction Z are perpendicular to the first direction X.

[0078] As an example, as shown in Figure 1, the first tailing mechanism 30 and the second tailing mechanism 40 are arranged along the height direction of the film finishing device 100, the two clamping mechanisms 20 are arranged along the width direction of the film finishing device 100, and the clamping mechanisms 20 are movably arranged on the base 10 along the length direction of the film finishing device 100.

[0079] By setting the first closing mechanism 30 and the second closing mechanism 40 along the first direction X, the clamping mechanism 20 moves along the second direction Y, and two clamping mechanisms 20 are set along the third direction Z, the closing action of the film 200 is made simpler and more reasonable, the installation of the clamping mechanism 20 is more convenient, and the closing efficiency of the film 200 is high.

[0080] In some embodiments, the film finishing device 100 further includes two driving mechanisms 60 , and the two driving mechanisms 60 are configured to drive the two clamping mechanisms 20 to move along the second direction Y respectively.

[0081] The driving mechanism 60 can be a motor, a cylinder, a hydraulic cylinder, etc.

[0082] As an example, as shown in Figure 3, a ground rail 11 is provided on the mounting table 1 of the base 10, the clamping mechanism 20 includes a mounting seat 204, the driving mechanism 60 is a linear motor, and the linear motor is configured to drive the mounting seat 204 to move along the second direction Y on the ground rail 11, the first clamping portion 201 is provided on the mounting seat 204, the third driving component 203 connects the second clamping portion 202 and the mounting seat 204, and the third driving component 203 drives the second clamping portion 202 to move along the first direction X to approach or move away from the first clamping portion 201.

[0083] By setting up two driving mechanisms 60, the two driving mechanisms 60 respectively drive the clamping mechanism 20 to move along the second direction Y. The driving mechanism 60 can independently drive the clamping mechanism 20 to move, so that after the workpiece 300 clamped by one clamping mechanism 20 is finished but before unloading, the other clamping mechanism 20 can pick up the workpiece 300 coated with the unfinished coating 200 on the loading platform 50, thereby improving the efficiency of coating 200 of the workpiece 300.

[0084] An embodiment of the present application provides a battery production line, comprising a film finishing device provided by any one of the above embodiments.

[0085] In some embodiments, the battery production line also includes a wrapping device and a battery transmission device. The wrapping device is located upstream of the film finishing device. The wrapping device is used to wrap the battery monomers to obtain battery monomers with unfinished film, and transfer the battery monomers with unfinished film to the film finishing device for film finishing. The battery transmission device is used to transfer the battery monomers with unfinished film to the film finishing device.

[0086] Referring to Figures 1-3 , an embodiment of the present application provides a film finishing device 100 for finishing a film 200 wrapped around a battery cell 3001. The film finishing device 100 includes a base 10, a clamping mechanism 20, a first finishing mechanism 30, a second finishing mechanism 40, a loading platform 50, and a driving mechanism 60. The base 10 includes a mounting platform 1 and a mounting frame 2 connected to the mounting platform 1. The first and second closing mechanisms 30, 40 are disposed on the mounting frame 2 along the first direction X. The first closing mechanism 30 includes a first driving component 301, a first movable seat 3021, and a first closing roller 3022 rotatably disposed on the first movable seat 3021. The first driving component 301 is configured to drive the first movable seat 3021 to move along the first direction X, so that the first closing roller 3022 wraps the first closing segment 2001 around the surface of the battery cell 3001. The second closing mechanism 40 includes a second driving component 401, a second movable seat 4021, and a second closing roller 4022 rotatably disposed on the second movable seat 4021. The second driving component 401 is configured to drive the second movable seat 4021 to move along the first direction X, so that the second closing roller 4022 wraps the second closing segment 2002 around the same surface of the battery cell 3001. The clamping mechanism 20 and the loading platform 50 are disposed on the mounting platform 1 along the second direction Y. The clamping mechanism 20 includes a first clamping portion 201, a second clamping portion 202, and a third drive component 203. The third drive component 203 is configured to drive the second clamping portion 202 upward, closer to the first clamping portion 201, to lift the battery cell 3001 on the loading platform 50, thereby enabling the first clamping portion 201 and the second clamping portion 202 to cooperate in clamping the battery cell 3001. The loading platform 50 includes a conveying mechanism 501 for transporting the battery cell 3001. There are two clamping mechanisms 20 and two drive mechanisms 60, which are arranged along a third direction. The drive mechanism 60 is configured to drive the clamping mechanisms 20 to move along a second direction Y, so that the clamping mechanisms 20 can clamp the battery cell 3001 on the conveying mechanism 501. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0087] The conveying mechanism 501 transports a battery cell 3001 coated on three sides 30014. When the clamping mechanism 20 clamps the battery cell 3001, it can grip the side 30014 of the battery cell 3001 coated with the film 200. This reduces the risk of the clamping mechanism 200 contacting the interface between the film 200 and the battery cell 3001, thereby improving the yield rate of film production. Both the first and second closing sections 2001 and 2002 can be closed at the same location. The clamping mechanism 20 only needs to pause once while carrying the battery cell 3001 to complete the film closing, improving closing efficiency. Two linear motors drive the two clamping mechanisms 20, respectively. While one clamping mechanism 20 is unloading a finished battery cell 3001, the other clamping mechanism 20 can clamp the battery cell 3001 on the conveying mechanism 501. This shortens the time required for closing and improves closing efficiency.

[0088] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. 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. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A film wrapping and finishing device, comprising: base; a clamping mechanism disposed on the base, the clamping mechanism being used to clamp a workpiece covered with an unfinished membrane, wherein the membrane has a first finishing section and a second finishing section; The first closing mechanism and the second closing mechanism are arranged on the base, and the first closing mechanism and the second closing mechanism are respectively used to attach the first closing segment and the second closing segment to the same surface of the workpiece.

2. The film wrapping and finishing device according to claim 1, wherein: Along the first direction, the first tail-closing mechanism and the second tail-closing mechanism are arranged opposite to each other; The first closing mechanism includes a first driving component and a first closing component, the first closing component is movably disposed on the base along the first direction, the first driving component is configured to drive the first closing component to move toward the second closing mechanism, so that the first closing component attaches the first closing segment to the workpiece; and / or The second finishing mechanism includes a second driving component and a second finishing component. The second finishing component is movably arranged on the base along the first direction. The second driving component is configured to drive the second finishing component to move in a direction close to the first finishing mechanism so that the second finishing component attaches the second finishing segment to the workpiece.

3. The film wrapping and finishing device according to claim 2, wherein: The first finishing component includes a first movable seat and a first finishing roller, the first finishing roller is rotatably disposed on the first movable seat, and the first driving component is configured to drive the first movable seat to move along the first direction so that the first finishing roller rolls the first finishing segment; and / or The second finishing component includes a second movable seat and a second finishing roller, the second finishing roller is rotatably arranged on the second movable seat, and the second driving component is configured to drive the second movable seat to move along the first direction so that the second finishing roller rolls the second finishing section.

4. The film wrapping and finishing device according to claim 2 or 3, wherein: The clamping mechanism includes a first clamping portion and a second clamping portion, wherein the first clamping portion and the second clamping portion are arranged opposite to each other along the first direction, and the first clamping portion and the second clamping portion are used to cooperate with each other to clamp the workpiece.

5. The film wrapping and finishing device according to any one of claims 1 to 4, wherein: The base is provided with a loading platform, and the loading platform is used to carry the workpiece; The clamping mechanism is movably arranged on the base, and the clamping mechanism is configured to transfer the workpiece on the loading platform to the position to be finished. The first finishing mechanism and the second finishing mechanism are respectively used to attach the first finishing section and the second finishing section to the same surface of the workpiece located at the position to be finished.

6. The film wrapping and finishing device according to claim 5, wherein: The first closing mechanism and the second closing mechanism are respectively arranged on both sides of the loading platform along a first direction, and the clamping mechanism is movably arranged on the base along a second direction, and the second direction is perpendicular to the first direction.

7. The film wrapping and finishing device according to claim 6, wherein: The loading platform includes a conveying mechanism configured to convey the workpiece along the second direction.

8. The film wrapping and finishing device according to claim 6 or 7, wherein: The clamping mechanism includes a first clamping part, a second clamping part and a third driving component. The first clamping part and the second clamping part are arranged opposite to each other along the first direction. The first clamping part and the second clamping part are used to cooperate in clamping the workpiece. The second clamping part is located below the first clamping part. The third driving component is used to drive the second clamping part to approach or move away from the first clamping part.

9. The film wrapping and finishing device according to any one of claims 5 to 8, wherein: There are two clamping mechanisms, which are arranged opposite to each other along a third direction. The clamping mechanisms are movably arranged on the base along a second direction, and the second direction is perpendicular to the third direction.

10. The film wrapping and finishing device according to claim 9, wherein: The first closing mechanism and the second closing mechanism are respectively arranged on both sides of the loading platform along a first direction, and the second direction and the third direction are both perpendicular to the first direction.

11. The film wrapping and finishing device according to claim 9 or 10, wherein: The film wrapping and finishing device further includes two driving mechanisms, and the two driving mechanisms are configured to respectively drive the two clamping mechanisms to move along the second direction.

12. A battery production line comprising the film wrapping and finishing device according to any one of claims 1 to 11.

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