Film coating assembly and film coating mechanism

Abstract

The utility model discloses a film coating assembly and a film coating mechanism, and relates to the technical field of battery manufacturing, and the film coating assembly comprises a fixing plate, an edge folding assembly, an edge folding driving assembly and a positioning module; the edge folding assembly is rotationally installed on the side, close to the to-be-coated object, of the fixing plate through the rotating shaft assembly. The edge folding driving assembly is connected with the edge folding assembly and used for driving the edge folding assembly to rotate around the rotating shaft assembly. The positioning module is connected with the fixing plate and used for driving the fixing plate and the edge folding driving assembly to move close to or away from the to-be-coated object in the horizontal direction. The edge folding assembly of the film wrapping assembly is arranged to be rotatable and is adjusted through the edge folding driving assembly so that cut-in edge folding can be conducted according to the edge folding angle, needing to be folded, of the object to be wrapped, and in the edge folding process, the cut-in angle of the edge folding assembly can be continuously adjusted so that the extrusion force of edge folding can be increased; and the effect of no reverse warping in the edge folding process is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and particularly relates to a film wrapping assembly and a film wrapping mechanism. Background Art

[0002] Cell film wrapping is an indispensable process in the battery manufacturing process. Usually, an insulating film layer is used to wrap the surface of the cell to ensure that the surface of the cell is not scratched, thereby avoiding affecting the appearance of the cell.

[0003] The film wrapping mechanism is an important component of the cell film wrapping equipment. It wraps the object to be film wrapped in a way of pushing and folding. However, through research, it is found that due to the design deficiency of the existing film wrapping mechanism, problems such as film edge warping are likely to occur, for example, the insulating film warps at the edge of the cell corner because the insulating film cannot closely adhere to the cell surface. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a film wrapping assembly and a film wrapping mechanism to solve the technical problem that the insulating film is likely to warp during the film wrapping operation of the existing film wrapping mechanism.

[0005] To achieve the above technical purpose, the present application provides a film wrapping assembly, including a fixing plate, a folding edge component, a folding edge driving component, and a positioning module; the folding edge component is rotatably installed on one side of the fixing plate close to the object to be film wrapped through a rotating shaft component; the folding edge driving component is connected to the folding edge component and is used to drive the folding edge component to rotate around the rotating shaft component; the positioning module is connected to the fixing plate and is used to drive the fixing plate and the folding edge driving component to move horizontally close to or away from the object to be film wrapped.

[0006] Further, a plurality of clearance grooves are provided on one side of the folding edge component close to the object to be film wrapped for avoiding the convex structures on the object to be film wrapped.

[0007] Further, the fixing plate is arranged above the positioning module; the driving end of the positioning module is connected to the fixing plate through a driving connecting piece.

[0008] Further, a clamping portion is provided on the fixing plate;

[0009] The clamping portion is in clamping fit with the driving connecting piece.

[0010] Further, both ends of one side of the folding edge component close to the object to be film wrapped are connected to the fixing plate through the rotating shaft component.

[0011] Further, the folding edge driving component includes a folding edge driving piece and a variable distance limiting piece;

[0012] The hemming driving member is installed on the upper surface of the fixing plate and is connected to the variable pitch limiting member, and is used to drive the variable pitch limiting member to move horizontally closer to or away from the object to be coated;

[0013] A variable pitch movable member is fixed on the hemming assembly;

[0014] The variable pitch movable member is slidably connected and cooperated with the variable pitch limiting member in the vertical direction, so that the hemming driving member can drive the variable pitch limiting member to move, and at the same time drive the variable pitch movable member to move in the vertical direction, thereby driving the hemming assembly to rotate around the rotating shaft assembly.

[0015] Further, a limiting groove is formed in the variable pitch limiting member along the vertical direction;

[0016] The variable pitch movable member is provided with a cylindrical portion;

[0017] The cylindrical portion extends into the limiting groove and is slidably connected with the limiting groove in the vertical direction.

[0018] Further, the variable pitch limiting member is slidably connected to the upper surface of the fixing plate through a variable pitch assembly.

[0019] Further, the hemming assembly includes a hemming strip, a hemming fixing frame and an elastic assembly;

[0020] The hemming strip is elastically connected to the hemming fixing frame through the elastic assembly and forms a relative elastic displacement with the hemming fixing frame.

[0021] The present application also discloses a film coating mechanism, including a limiting table and at least two of the film coating assemblies;

[0022] A through opening for the object to be coated to pass through is provided on the limiting table;

[0023] At least two of the film coating assemblies are installed on the limiting table and are arranged at intervals around the through opening.

[0024] It can be seen from the above technical solutions that the film coating assembly designed in the present application has the following beneficial effects:

[0025] The hemming assembly of the film coating assembly is set to be rotatable and is adjusted by a hemming driving assembly, so as to be able to cut and hem according to the required hemming angle of the object to be coated, and during the process of hemming in cooperation with the positioning module, the hemming extrusion force can be continuously enhanced by adjusting the cutting angle of the hemming assembly, ensuring the effect of no warping during the hemming process. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] Figure 1 The first three-dimensional view of a film coating assembly provided in the present application;

[0028] Figure 2 The first partial structural schematic diagram of a film coating assembly provided in the present application;

[0029] Figure 3 The second three-dimensional view of a film coating assembly provided in the present application;

[0030] Figure 4 The second partial structural schematic diagram of a film coating assembly provided in the present application;

[0031] Figure 5 The three-dimensional view of a film coating mechanism provided in the present application;

[0032] Figure 6 The three-dimensional view of another film coating assembly provided in the present application;

[0033] In the figure: 101, limit platform; 102, through port; 1, hemming assembly; 11, clearance groove; 12, rotating shaft assembly; 13, variable pitch movable part; 131, cylindrical part; 14, hemming strip; 15, hemming fixing frame; 16, elastic component; 2, hemming driving component; 21, variable pitch limiting part; 211, limiting groove; 22, hemming driving part; 3, positioning module; 31, driving connecting part; 4, fixing plate; 41, variable pitch component; 42, positioning variable pitch component; 43, clamping part. Detailed implementation manners

[0034] The following will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the embodiments of the present application.

[0035] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a replaceable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0037] The embodiments of the present application disclose a film wrapping assembly.

[0038] Please refer to Figure 1 and Figure 2 , an embodiment of a film wrapping assembly provided in the embodiments of the present application includes:

[0039] A fixing plate 4, a hemming assembly 1, a hemming driving assembly 2, and a positioning module 3; the hemming assembly 1 is rotatably installed on one side of the fixing plate 4 close to the object to be film wrapped through a rotating shaft assembly 12. The rotating shaft assembly 12 can be composed of a rotating shaft and a bearing sleeved on the shaft rod. Compared with the single shaft rod design, it has better rotation smoothness. The hemming driving assembly 2 is connected to the hemming assembly 1 and is used to drive the hemming assembly 1 to rotate around the rotating shaft assembly 12; the positioning module 3 is connected to the fixing plate 4 and is used to drive the fixing plate 4 and the hemming driving assembly 2 to move horizontally close to or away from the object to be film wrapped, so as to realize the displacement adjustment of the first hemming assembly 1 in the horizontal direction.

[0040] The film wrapping assembly designed in the present application has the following beneficial effects: the hemming assembly 1 of the film wrapping assembly is set to be rotatable and is adjusted by the hemming driving assembly 2, so as to be able to cut and hem according to the angle to be hemmed of the object to be wrapped. And during the hemming process in cooperation with the positioning module 3, the squeezing force of the hemming can be continuously enhanced by adjusting the cutting angle of the hemming assembly 1, ensuring the effect of no warping during the hemming process.

[0041] The above is the first embodiment of a film wrapping component provided by the embodiments of the present application. The following is the second embodiment of a film wrapping component provided by the embodiments of the present application. For details, please refer to Figures 1 to 4 .

[0042] Based on the solution of the first embodiment above:

[0043] Further, as Figure 1 and Figure 2 shown, the hemming component 1 is provided with a plurality of clearance grooves 11 on the side close to the object to be film wrapped, for avoiding the convex structures on the object to be film wrapped. The size and quantity of the clearance grooves 11 can be designed to vary according to the size and quantity of the convex structures on the actual object to be film wrapped, without limitation.

[0044] The adjustable rotation angle design of the hemming component 1 combined with the design of the clearance grooves 11 thereon can enable the hemming component 1 to directly fit on the position of the convex structure of the object to be film wrapped, realize extrusion after full film wrapping, and further achieve the effect that the film is tightly attached to the surface of the object.

[0045] Further, as Figure 1 and Figure 2 shown, for the convenience of installing the hemming component 1, the fixing plate 4 is provided with an installation cavity on the side close to the object to be film wrapped, and the hemming component 1 is installed in the installation cavity through the first rotating shaft component 12.

[0046] Further, the fixing plate 4 is arranged above the positioning module 3; the driving end of the positioning module 3 is connected to the fixing plate 4 through the driving connecting piece 31. The fixing plate 4 and the positioning module 3 are distributed vertically, and the overall structure is more compact; when there is a gap between the fixing plate 4 and the positioning module 3, the connection between the fixing plate 4 and the positioning module 3 can be realized through the driving connecting piece 31. The positioning module 3 can be a telescopic cylinder, without limitation.

[0047] Further, the fixing plate 4 is provided with a clamping portion 43; the clamping portion 43 is in clamping cooperation with the driving connecting piece 31; the clamping portion 43 can be a clamping groove, and the driving connecting piece 31 can be a plate structure, which is inserted into the clamping groove and connected to the clamping groove. The driving connecting piece 31 is pushed by the positioning driving piece 32 to move, so as to drive the fixing plate 4 to move, and thus drive the hemming component 1 and the hemming driving component 2 installed on the fixing plate 4 to move.

[0048] Further, as Figure 2 shown, both ends of the side of the hemming component 1 close to the object to be film wrapped are connected to the fixing plate 4 through the rotating shaft component 12. The design of the double first rotating shaft components 12 realizes a more reliable rotating connection.

[0049] Further, as Figure 3As shown in the figure, the hemming drive assembly 2 includes a hemming drive member 22 and a variable pitch limiting member 21; the hemming drive member 22 is installed on the upper surface of the fixed plate 4 and is connected to the variable pitch limiting member 21, and is used to drive the variable pitch limiting member 21 to move horizontally closer to or away from the object to be film-coated; the hemming drive member 22 can be a telescopic cylinder, and there is no specific limitation.

[0050] A variable pitch movable member 13 is fixed on the hemming assembly 1; the variable pitch movable member 13 is slidably connected and cooperated with the variable pitch limiting member 21 in the vertical direction, so that the hemming drive member 22 can drive the variable pitch limiting member 21 to move, so as to drive the variable pitch movable member 13 to move in the vertical direction at the same time, and further drive the hemming assembly 1 to rotate around the rotating shaft assembly 12. It can be understood that when the hemming drive member 22 drives the variable pitch limiting member 21 to move towards or away from the object to be film-coated, since one side of the hemming assembly 1 is restricted by the rotation of the rotating shaft assembly 12, the horizontal movement of the variable pitch limiting member 21 will be converted into the vertical movement of the variable pitch movable member 13, and further the hemming assembly 1 rotates around the rotating shaft assembly 12 to realize the adjustment of the rotation angle.

[0051] Under the above design, by driving the variable pitch limiting member 21 by the hemming drive member 22, the position distance of the variable pitch movable member 13 in the vertical direction can be changed, so that the included angle of the hemming assembly 1 with the rotating shaft assembly 12 as the vertex changes; and the positioning module 3 can drive the fixed plate 4 to move horizontally to change the position distance of the hemming assembly 1 installed on the fixed plate 4 in the horizontal direction. By the mutual cooperation of the position distance adjustment in the horizontal direction and the position distance adjustment in the vertical direction, it is ensured that the insulating film is closely attached to the surface of the object to be film-coated.

[0052] Furthermore, in order to make the movement of the variable pitch limiting member 21 smooth and stable, it is slidably connected to the upper surface of the fixed plate 4 through a variable pitch assembly 41. The variable pitch assembly 41 can be a slide rail assembly, and there is no specific limitation.

[0053] Furthermore, as Figure 3 shown, a limiting groove 211 is provided on the variable pitch limiting member 21 in the vertical direction; the variable pitch movable member 13 is provided with a cylindrical portion 131; the cylindrical portion 131 extends into the limiting groove 211 and is slidably connected to the limiting groove 211 in the vertical direction; the cylindrical portion 131 can be rotatably connected or fixedly connected to the hemming assembly 1; of course, the variable pitch movable member 13 can also be provided with a square portion. Taking the square portion as an example, the square portion needs to be rotatably connected to the hemming assembly 1 to ensure that it can slide relatively in the limiting groove 211; the limiting groove 211 can be an oval groove penetrating through the variable pitch limiting member 21, and can be designed according to actual needs, and there is no limitation.

[0054] As Figure 2As shown in the figure, for the specific structural design of the hemming component 1, it includes a hemming strip 14, a hemming fixing frame 15, and an elastic component 16; the hemming strip 14 is elastically connected to the hemming fixing frame 15 through the elastic component 16 and forms a relative elastic displacement with the hemming fixing frame 15. The elastic component 16 is used to play a buffering role. Such a design can avoid the direct hard contact between the hemming strip 14 and the object to be coated, thereby crushing the object to be coated; at the same time, the elastic component 16 can also provide an elastic acting force to make the hemming strip 14 better adhere to the object to be coated. The hemming fixing frame 15 can be in a U-shaped structure, providing a certain installation space for the hemming strip 14 to facilitate the installation of the hemming strip 14; the rotating shaft component 12 and the variable-distance movable part 13 are correspondingly arranged on the hemming fixing frame 15, and the clearance groove 11 is arranged on the hemming strip 14. The elastic component 16 can be designed to include a guide rod, an elastic member, and a locking member; one end of the guide rod is fixedly connected to the hemming strip 14, the other end movably passes through the hemming fixing frame 15, and is connected to the locking member that can contact and abut against the hemming fixing frame 15. This locking member can prevent the guide rod from detaching from the hemming fixing frame 15, and the elastic member is connected between the hemming strip 14 and the hemming fixing frame 15. The guide rod can be a bolt / screw rod, etc., the locking member can be a nut, and the elastic member can be a compression spring, sleeved on the guide rod; furthermore, by rotating the nut, the compression amount of the elastic member can be adjusted, so as to provide different elastic acting force feedback and be more flexible to use.

[0055] As Figure 5 shown, the present application also discloses a film coating mechanism, including a limiting platform 101 and at least two film coating components.

[0056] A through hole 102 for the object to be coated to pass through is provided on the limiting platform 101; at least two film coating components are installed on the limiting platform 101 and are arranged at intervals around the through hole 102. Taking the film coating treatment of a square object to be coated as an example, the film coating components can specifically be four. Two of the film coating components are used corresponding to the long side position of the object to be coated, and the other two film coating components are used corresponding to the short side position of the object to be coated; it can be understood that the structural dimensions of the film coating components can be adaptively adjusted according to the film coating object. For use corresponding to the long side position, its structure can be as Figures 1 to 4 shown, for use corresponding to the short side position, its structure can be as Figure 6 shown; Figure 6 Shown is another film coating component for use corresponding to the short side position. The combination principle of each of its structures is the same as that of the film coating component in Figures 1 to 4 , so it will not be elaborated here. The clearance groove 11 of the present application is provided on the hemming component 1 of a film coating component corresponding to the long side.

[0057] As Figure 6 shown, in the cooperative design between the film coating component and the positioning module 3 and the fixing plate 4, it can be slightly different from that in Figures 1 to 4In the design, specifically, the fixing plate 4 is directly installed on the positioning module 3. At this time, the driving end of the positioning module 3 can be directly connected to the fixing plate 4 to drive the fixing plate 4 to move.

[0058] Furthermore, as Figure 5 shown, the lower surface of the fixing plate 4 of the film wrapping assembly is slidably connected to the limiting platform 101 or the positioning module 3 through the positioning distance-changing assembly 42, making the movement of the fixing plate 4 smoother and more stable.

[0059] When the positioning module 3 is installed on the lower surface of the limiting platform 101 (that is, when the driving end of the positioning module 3 is located below the limiting platform 101), the positioning module 3 needs to be connected and cooperated with the fixing plate 4 installed on the upper surface of the limiting platform 101 through the driving connecting piece 31 that moves upward through the limiting platform 101. When the fixing plate 4 is directly installed on the positioning module 3, the driving end of the positioning module 3 can be directly connected to the fixing plate 4. At this time, the positioning module 3 can be installed at the edge position of the limiting platform 101.

[0060] The above has introduced in detail a film wrapping assembly and a film wrapping mechanism provided by the present application. For those of ordinary skill in the art, according to the idea of the embodiments of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A membrane component, characterized in that: The invention comprises a fixed plate (4), a folding assembly (1), a folding drive assembly (2) and a positioning module (3); the folding assembly (1) is rotatably mounted on a side of the fixed plate (4) close to the object to be coated via a rotating shaft assembly (12); the folding drive assembly (2) is connected to the folding assembly (1) and is used to drive the folding assembly (1) to rotate around the rotating shaft assembly (12); the positioning module (3) is connected to the fixed plate (4) and is used to drive the fixed plate (4) and the folding drive assembly (2) to move in a horizontal direction close to or away from the object to be coated.

2. The membrane assembly according to claim 1, characterized in that: The folding component (1) is provided with a plurality of avoidance grooves (11) on a side close to the object to be coated, for avoiding protruding structures on the object to be coated.

3. The membrane assembly according to claim 1, characterized in that: The fixing plate (4) is arranged above the positioning module (3); the driving end of the positioning module (3) is connected to the fixing plate (4) via a driving connection member (31).

4. The membrane assembly according to claim 3, characterized in that: The fixing plate (4) is provided with a clamping portion (43); The clamping portion (43) is clamped and matched with the driving connection piece (31).

5. The membrane assembly according to claim 1, characterized in that: Both ends of the folding assembly (1) on the side close to the object to be coated are connected to the fixing plate (4) via the rotating shaft assembly (12).

6. The membrane assembly according to claim 1, characterized in that: The hemming drive assembly (2) comprises a hemming drive component (22) and a variable distance limiting component (21); The folding driving member (22) is mounted on the upper surface of the fixing plate (4) and is connected to the variable distance limiting member (21), and is used to drive the variable distance limiting member (21) to move toward or away from the object to be coated in a horizontal direction; A variable-distance movable part (13) is fixed on the folding assembly (1); The variable distance movable member (13) is slidably connected and cooperated with the variable distance limiting member (21) in the vertical direction, so that the folding driving member (22) can drive the variable distance limiting member (21) to move, thereby simultaneously driving the variable distance movable member (13) to move in the vertical direction, thereby driving the folding assembly (1) to rotate around the rotating shaft assembly (12).

7. The membrane assembly according to claim 6, characterized in that: The variable distance limiting member (21) is provided with a limiting groove (211) in a vertical direction; The variable pitch movable member (13) is provided with a cylindrical portion (131); The cylindrical portion (131) extends into the limiting groove (211) and is slidably connected to the limiting groove (211) in a vertical direction.

8. The membrane assembly according to claim 6, characterized in that: The variable distance limiting member (21) is slidably connected to the upper surface of the fixing plate (4) via a variable distance component (41).

9. The membrane packaging assembly according to claim 1, characterized in that: The hemming assembly (1) comprises a hemming strip (14), a hemming fixing frame (15) and an elastic assembly (16); The hemming strip (14) is elastically connected to the hemming fixing frame (15) via the elastic component (16), and forms a relative elastic displacement with the hemming fixing frame (15).

10. The encapsulation mechanism is characterized in that: It comprises a limiting platform (101) and at least two membrane assemblies according to any one of claims 1 to 9; The limiting platform (101) is provided with a through opening (102) for the object to be coated to pass through; At least two of the membrane assemblies are mounted on the limiting platform (101) and are arranged alternately around the through opening (102).

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