Canning apparatus and canning line having the same

Abstract

The utility model provides a kind of sealing equipment and the sealing production line with it, wherein, sealing equipment includes: containing structure includes bottom plate and seal cover, seal cover is movably arranged on bottom plate along up and down direction, when containing structure is in open state, seal cover and bottom plate have interval between, when containing structure is in closed state, seal cover and bottom plate contact;First drive structure, first drive structure is driven with containing structure cooperation, to make containing structure move;Second drive structure includes the guide rail being set on base body and the runner being movably arranged on guide rail, guide rail has inlet end and outlet end;Down structure is located in the downstream of the outlet end of guide rail, and down structure can be with runner abutting cooperation to make seal cover and bottom plate abut.The technical scheme of the application effectively solves the problem that seal cover and bottom plate cannot be completely matched in related technology.

Description

Technical Field

[0001] This utility model relates to the technical field of integrated vacuuming, filling, and sealing machine, specifically to a can sealing device and a can sealing production line having the same. Background Technology

[0002] After the powder is filled into the can, it needs to be vacuumed and filled with protective gas to remove oxygen, prevent powder oxidation, and avoid food safety incidents. Vacuuming and protective gas filling are performed using an integrated vacuuming, protective gas filling, and sealing machine. This machine mainly consists of a guide rail, a rotating wheel, a sealing cover, and a base plate. The rotating wheel can move on the guide rail, meaning it rises and falls with the guide rail, and this movement of the rotating wheel drives the sealing cover to move as well.

[0003] In the existing technology, after the tank is transported between the sealing cover and the bottom plate, as the rotating wheel moves on the guide rail and eventually disengages from the guide rail, the sealing cover can gradually move to contact the bottom plate. However, after the rotating wheel disengages from the guide rail, the sealing cover presses against the bottom plate only by its own weight. This results in the sealing cover and the bottom plate not being able to fit completely, which in turn leads to the residual oxygen not meeting the requirements after vacuuming and filling with protective gas. Utility Model Content

[0004] The main purpose of this utility model is to provide a can sealing device and a can sealing production line having the same, so as to solve the problem that the sealing cover and the base plate cannot be completely fitted in the related technology.

[0005] To achieve the above objectives, according to one aspect of the present invention, a can sealing device is provided, comprising: a base; a receiving structure, the receiving structure including a bottom plate and a sealing cover, the bottom plate being movably disposed on the base, the sealing cover being movably disposed on the bottom plate in a vertical direction, the receiving structure having an open state and a closed state, wherein when the receiving structure is in the open state, there is a gap between the sealing cover and the bottom plate, and when the receiving structure is in the closed state, the sealing cover and the bottom plate are in contact; a first driving structure, the first driving structure drivingly cooperating with the receiving structure to move the receiving structure; and a second driving structure, the second driving structure including components disposed on the base. The structure includes a guide rail and a movably mounted wheel on the guide rail. The guide rail has an inlet end and an outlet end. In the direction of movement of the receiving structure, the height of the guide rail first increases and then decreases. The wheel drives the sealing cover to move the sealing cover up and down. A pressing structure is located above the base and downstream of the outlet end of the guide rail. The pressing structure can abut against the wheel to make the sealing cover and the base plate abut against each other. When the wheel moves from the inlet end to the highest point of the guide rail, the receiving structure switches from a closed state to an open state. When the receiving structure moves from the highest point of the guide rail to the outlet end, the receiving structure switches from an open state to a closed state.

[0006] Furthermore, the pressing structure includes a pressing plate, the bottom surface of which is a plane.

[0007] Furthermore, the receiving structure also includes a guiding structure, which includes a guide frame and a guide mating component. The guide frame is mounted on the base plate, and the guide mating component is movably mounted on the guide frame. The guide mating component is connected between the rotating wheel and the sealing cover.

[0008] Furthermore, the guide frame is provided with a guide hole, and the guide fitting includes a guide rod, which is movably inserted into the guide hole.

[0009] Furthermore, the second drive structure also includes a connecting shaft connected to the wheel, and the guide frame is also provided with a guide groove extending in the vertical direction. The connecting shaft passes through the guide groove, and the guide structure also includes a guide block provided on the connecting shaft. The guide block is movably provided in the guide groove.

[0010] Furthermore, the guide structure also includes a connecting seat, which connects between the guide mating part and the sealing cover.

[0011] Furthermore, the connecting seat includes a connecting horizontal plate and a connecting vertical plate. The connecting horizontal plate is located above the guide frame and extends toward the side of the guide frame, and the connecting vertical plate is connected between the connecting horizontal plate and the sealing cover.

[0012] Furthermore, the housing structure also includes a mounting block disposed on top of the sealing cover, a guide fitting connecting the mounting block and the connecting shaft, and the sealing device also includes fasteners that pass through the mounting block and the connecting seat.

[0013] Furthermore, the sealing equipment also includes an air extraction and inflation structure, which is connected to the sealing cover.

[0014] According to another aspect of the present invention, a can sealing production line is provided, including can sealing equipment and a conveying structure, wherein the can sealing equipment is the can sealing equipment described above.

[0015] The sealing device, utilizing the technical solution of this utility model, includes a base, a receiving structure, a first driving structure, a second driving structure, and a pressing structure. The receiving structure includes a base plate movably mounted on the base and a sealing cover movably mounted on the base plate in a vertical direction. The receiving structure has an open state and a closed state. When the receiving structure is in the open state, there is a gap between the sealing cover and the base plate; when the receiving structure is in the closed state, the sealing cover and the base plate are in contact. The first driving structure drives the receiving structure to move. The second driving structure includes a guide rail and a rotating wheel. The guide rail is mounted on the base, and its height initially increases and then decreases. The rotating wheel is movably mounted on the guide rail, and the guide rail drives the sealing cover to move vertically. The pressing structure is located above the base and downstream of the outlet end of the guide rail. The pressing structure abuts against the rotating wheel, causing the sealing cover to abut against the base plate. When the rotating wheel moves from the inlet end to the highest point of the guide rail, the receiving structure switches from the closed state to the open state; when the receiving structure moves from the highest point of the guide rail to the outlet end, the receiving structure switches from the open state to the closed state. With the above configuration, the first driving structure can drive the receiving structure to move. When the receiving structure moves, it drives the rotating wheel to move on the guide rail. The rotating wheel then drives the sealing cover to move up and down, creating a gap between the sealing cover and the base plate. This allows the receiving structure to switch between a closed and open state. The downward pressing structure applies a downward force to the rotating wheel, bringing it closer to the substrate. The rotating wheel then transmits the force applied by the downward pressing structure to the sealing cover, subjecting it to a downward force as well. This ensures a closer fit between the sealing cover and the base plate, preventing incomplete contact during vacuuming and protective gas filling, which could lead to insufficient residual oxygen. Therefore, the technical solution of this application effectively solves the problem of incomplete contact between the sealing cover and the base plate in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A perspective structural schematic diagram of an embodiment of the can sealing device according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A partially enlarged schematic diagram of point A on the sealing equipment;

[0019] Figure 3 It shows Figure 1 A partially enlarged schematic diagram of section B of the sealing equipment;

[0020] Figure 4 It shows Figure 1 A partially enlarged schematic diagram of point C of the can sealing equipment.

[0021] The above figures include the following reference numerals:

[0022] 10. Base; 20. Receiving structure; 21. Base plate; 22. Sealing cover; 23. Guide structure; 231. Guide frame; 2311. Guide hole; 2312. Guide groove; 232. Guide mating part; 2321. Guide rod; 233. Guide block; 234. Connecting seat; 2341. Connecting horizontal plate; 2342. Connecting vertical plate; 24. Mounting block; 30. Second drive structure; 31. Guide rail; 32. Rotary wheel; 33. Connecting shaft; 40. Pressing structure; 41. Pressing plate; 50. Fastener. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] like Figure 1 As shown, the sealing device of this embodiment includes: a base 10, a receiving structure 20, a first driving structure, a second driving structure 30, and a pressing structure 40. The receiving structure 20 includes a base plate 21 and a sealing cover 22. The base plate 21 is movably disposed on the base 10, and the sealing cover 22 is movably disposed on the base plate 21 in the vertical direction. The receiving structure 20 has an open state and a closed state. When the receiving structure 20 is in the open state, there is a gap between the sealing cover 22 and the base plate 21. When the receiving structure 20 is in the closed state, the sealing cover 22 and the base plate 21 are in contact. The first driving structure drives the receiving structure 20 to move. The second driving structure 30 includes a guide rail 31 disposed on the base 10 and a rotating wheel 32 movably disposed on the guide rail 31. The guide rail 31 has an inlet end and an outlet end. In the moving direction of the receiving structure 20, the height of the guide rail 31 first increases and then decreases. The rotating wheel 32 drives the sealing cover 22 to move the sealing cover 22 vertically. The pressing structure 40 is disposed above the base 10 and is located downstream of the outlet end of the guide rail 31. The pressing structure 40 can abut against the rotating wheel 32 so that the sealing cover 22 and the base plate 21 abut against each other. When the rotating wheel 32 moves from the inlet end to the highest point of the guide rail 31, the receiving structure 20 switches from the closed state to the open state. When the receiving structure 20 moves from the highest point of the guide rail 31 to the outlet end, the receiving structure 20 switches from the open state to the closed state.

[0027] Using the technical solution of this embodiment, the can sealing device includes a base 10, a receiving structure 20, a first driving structure, a second driving structure 30, and a pressing structure 40. The receiving structure 20 includes a base plate 21 movably disposed on the base 10 and a sealing cover 22 movably disposed on the base plate 21 in a vertical direction. The receiving structure 20 has an open state and a closed state. When the receiving structure 20 is in the open state, there is a gap between the sealing cover 22 and the base plate 21. When the receiving structure 20 is in the closed state, the sealing cover 22 and the base plate 21 are in contact. The first driving structure drives the receiving structure 20 to move. The second driving structure 30 includes a guide rail 31 and a rotating wheel 32. The guide rail 31 is disposed on the base 10, and the height of the guide rail 31 first increases and then decreases. The rotating wheel 32 is movably disposed on the guide rail 31. The guide rail 31 drives the sealing cover 22 to move vertically. The pressing structure 40 is positioned above the base 10 and downstream of the outlet end of the guide rail 31. The pressing structure 40 abuts against the rotating wheel 32, causing the sealing cover 22 to abut against the base plate 21. When the rotating wheel 32 moves from the inlet end to the highest point of the guide rail 31, the receiving structure 20 switches from a closed state to an open state. When the receiving structure 20 moves from the highest point of the guide rail 31 to the outlet end, it switches from an open state to a closed state. Through this configuration, the first driving structure can drive the receiving structure 20 to move. As the receiving structure 20 moves, it drives the rotating wheel 32 to move on the guide rail 31. The rotating wheel 32 then drives the sealing cover 22 to move up and down, creating a gap between the sealing cover 22 and the base plate 21. In other words, the receiving structure 20 can switch between a closed state and an open state. The downward pressure structure 40 applies a downward force to the rotating wheel 32, bringing it closer to the substrate 10. The rotating wheel 32 then transmits the force from the downward pressure structure 40 to the sealing cover 22, subjecting it to a downward force as well. This ensures a closer fit between the sealing cover 22 and the base plate 21, preventing incomplete contact during vacuuming and protective gas filling, which could lead to insufficient residual oxygen. Therefore, the technical solution of this embodiment effectively solves the problem of incomplete contact between the sealing cover and the base plate in related technologies.

[0028] It should be noted that guide rail 31 is an arc-shaped plate.

[0029] The first driving structure drives the base plate 21 of the housing structure 20 to rotate around the axis of the guide rail 31.

[0030] The receiving structure 20 includes multiple receiving structures 20, which are spaced apart in the circumferential direction of the guide rail 31.

[0031] Some of the multiple accommodating structures 20 are in a closed state, while some of the multiple accommodating structures 20 are in an open state.

[0032] The pressure structure 40 can be directly connected to the base 10, or it can be connected to the base 10 via the guide rail 31.

[0033] The can sealing device also includes a conformal plate, the first end of which is located at the top of the guide rail 31 and is spaced apart from the top of the guide rail 31. The second end of the conformal plate is connected to the pressing structure 40. The conformal plate is provided to limit the movement of the rotating wheel 32 in the vertical direction.

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the pressing structure 40 includes a pressing plate 41, the bottom surface of which is flat. The pressing plate 41 is configured to apply a downward force to the rotating wheel 32, which in turn transmits the force to the sealing cover 22, causing the sealing cover 22 to also experience a downward force, thus resulting in a tighter contact between the sealing cover 22 and the base plate 21. The flat bottom surface of the pressing plate 41 allows for smoother movement of the rotating wheel 32 and a more uniform force distribution on it.

[0035] like Figure 1 and Figure 4 As shown, in this embodiment, the receiving structure 20 further includes a guide structure 23. The guide structure 23 includes a guide frame 231 and a guide mating member 232. The guide frame 231 is disposed on the base plate 21, and the guide mating member 232 is movably disposed on the guide frame 231. The guide mating member 232 is connected between the rotating wheel 32 and the sealing cover 22. The guide frame 231 can guide the movement of the guide mating member 232, so that when the rotating wheel 32 moves up and down, it can drive the sealing cover 22 to move up and down, making the movement of the sealing cover 22 smoother.

[0036] like Figure 1 and Figure 4 As shown, in this embodiment, the guide frame 231 is provided with a guide hole 2311, and the guide mating component 232 includes a guide rod 2321, which is movably inserted into the guide hole 2311. The guide rod 2321 can guide and engage with the guide hole 2311, allowing the guide rod 2321 to move smoothly.

[0037] The axis of guide rod 2321 extends in the vertical direction.

[0038] like Figure 1 , Figure 2 as well as Figure 4As shown, in this embodiment, the second drive structure 30 further includes a connecting shaft 33, which connects the rotating wheel 32 and the sealing cover 22. The guide frame 231 is also provided with a guide groove 2312 extending vertically, and the connecting shaft 33 passes through the guide groove 2312. The guide structure 23 also includes a guide block 233 disposed on the connecting shaft 33, which is movably disposed within the guide groove 2312. Movement of the rotating wheel 32 drives the connecting shaft 33 to move, which in turn drives the guide block 233 to move within the guide groove 2312, thereby enabling the connecting shaft 33 to move stably up and down, and consequently, enabling the sealing cover 22 to move stably up and down.

[0039] The axis of connecting shaft 33 extends in the transverse direction.

[0040] The connecting shaft 33 is connected to the guide rod 2321.

[0041] The guide block 233 is cylindrical in shape. The guide block 233 is rotatably mounted on the connecting shaft 33. The guide block 233 has the same structure as the rotating wheel 32.

[0042] like Figure 1 and Figure 3 As shown, in this embodiment, the guide structure 23 further includes a connecting seat 234, which is connected between the guide mating member 232 and the sealing cover 22. The connecting seat 234 can connect the guide mating member 232 and the sealing cover 22, so that when the guide mating member 232 moves, the sealing cover 22 can be moved through the connecting seat 234.

[0043] like Figure 1 and Figure 3 As shown, in this embodiment, the connecting seat 234 includes a connecting horizontal plate 2341 and a connecting vertical plate 2342. The connecting horizontal plate 2341 is located above the guide frame 231 and extends towards the side of the guide frame 231. The connecting vertical plate 2342 is connected between the connecting horizontal plate 2341 and the sealing cover 22. The connecting horizontal plate 2341 is connected between the connecting vertical plate 2342 and the guide mating member 232, thereby guiding the movement of the guide mating member 232. The connecting horizontal plate 2341 can drive the connecting vertical plate 2342 to move. The connecting vertical plate 2342 can connect the connecting horizontal plate 2341 and the sealing cover 22.

[0044] The guide rod 2321 is connected to the connecting cross plate 2341.

[0045] The connecting horizontal plate 2341 and the connecting vertical plate 2342 are connected by bolts. In an embodiment not shown in the figure, the connecting horizontal plate 2341 and the connecting vertical plate 2342 can also be connected by welding, or the connecting horizontal plate 2341 and the connecting vertical plate 2342 can be an integral structure, or the connecting horizontal plate 2341 is provided with an insert block with a first slot, and the connecting vertical plate 2342 is provided with a second slot and a third slot. A limiting rod is inserted into the third slot and extends into the second slot and the first slot to limit the movement of the connecting horizontal plate 2341 and the connecting vertical plate 2342.

[0046] like Figure 1 and Figure 3 As shown, in this embodiment, the receiving structure 20 further includes a mounting block 24 disposed on the top of the sealing cover 22. A guide fitting 232 is connected between the mounting block 24 and the connecting shaft 33. The sealing device also includes a fastener 50, which passes through the mounting block 24 and the connecting seat 234. The mounting block 24 facilitates the connection between the guide fitting 232 and the sealing cover 22, so that when the guide fitting 232 moves, it can drive the sealing cover 22 to move. The fastener 50 can connect the mounting block 24 and the connecting seat 234.

[0047] Fastener 50 is connected to mounting block 24 and connecting plate 2342.

[0048] In this embodiment, the sealing device also includes a vacuuming and inflation structure, which is connected to the sealing cover 22. The vacuuming and inflation structure enables the sealing cover 22 to be evacuated and filled with protective gas.

[0049] In this embodiment, the can sealing production line includes a can sealing device and a conveying structure. The can sealing device is the one described above. When in use, the pressure structure of the can sealing device applies a downward force to the rotating wheel, which transmits the force to the sealing cover. This downward force causes the sealing cover to adhere more tightly to the base plate, resulting in more effective oxygen removal during the evacuation and inflation processes, ensuring that residual oxygen meets requirements. The can sealing production line with the aforementioned can sealing device also possesses these advantages. The conveying structure transports the can to the base plate.

[0050] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A can closing apparatus characterized by comprising: include: Matrix (10); The receiving structure (20) includes a base plate (21) and a sealing cover (22). The base plate (21) is movably disposed on the base (10), and the sealing cover (22) is movably disposed on the base plate (21) in the vertical direction. The receiving structure (20) has an open state and a closed state. When the receiving structure (20) is in the open state, there is a gap between the sealing cover (22) and the base plate (21). When the receiving structure (20) is in the closed state, the sealing cover (22) and the base plate (21) are in contact. A first driving structure is driven to cooperate with the receiving structure (20) to move the receiving structure (20); The second drive structure (30) includes a guide rail (31) disposed on the base (10) and a rotating wheel (32) movably disposed on the guide rail (31). The guide rail (31) has an inlet end and an outlet end. In the moving direction of the receiving structure (20), the height of the guide rail (31) first increases and then decreases. The rotating wheel (32) drives the sealing cover (22) to move the sealing cover (22) up and down. A pressing structure (40) is disposed above the base (10). The pressing structure (40) is located downstream of the outlet end of the guide rail (31). The pressing structure (40) can abut against the wheel (32) so that the sealing cover (22) and the base plate (21) abut against each other. When the wheel (32) moves from the inlet end to the highest point of the guide rail (31), the receiving structure (20) switches from the closed state to the open state. When the receiving structure (20) moves from the highest point of the guide rail (31) to the outlet end, the receiving structure (20) switches from the open state to the closed state.

2. The can closing apparatus according to claim 1, characterized in that, The pressing structure (40) includes a pressing plate (41), the bottom surface of which is a plane.

3. The can sealing equipment according to claim 1, characterized in that, The receiving structure (20) further includes a guide structure (23), which includes a guide frame (231) and a guide mating part (232). The guide frame (231) is disposed on the base plate (21), and the guide mating part (232) is movably disposed on the guide frame (231). The guide mating part (232) is connected between the rotating wheel (32) and the sealing cover (22).

4. The can sealing equipment according to claim 3, characterized in that, The guide frame (231) is provided with a guide hole (2311), and the guide fitting (232) includes a guide rod (2321), which is movably inserted into the guide hole (2311).

5. The can sealing equipment according to claim 3, characterized in that, The second drive structure (30) further includes a connecting shaft (33) connected to the rotating wheel (32), and the guide frame (231) is also provided with a guide groove (2312) extending in the vertical direction. The connecting shaft (33) passes through the guide groove (2312). The guide structure (23) further includes a guide block (233) provided on the connecting shaft (33), and the guide block (233) is movably provided in the guide groove (2312).

6. The can sealing device according to claim 5, characterized in that, The guide structure (23) further includes a connecting seat (234) which is connected between the guide mating member (232) and the sealing cover (22).

7. The can sealing device according to claim 6, characterized in that, The connecting seat (234) includes a connecting horizontal plate (2341) and a connecting vertical plate (2342). The connecting horizontal plate (2341) is located above the guide frame (231) and extends toward the side of the guide frame (231). The connecting vertical plate (2342) is connected between the connecting horizontal plate (2341) and the sealing cover (22).

8. The can sealing device according to claim 6, characterized in that, The receiving structure (20) further includes a mounting block (24) disposed on the top of the sealing cover (22), the guide fitting (232) is connected between the mounting block (24) and the connecting shaft (33), and the can sealing device further includes a fastener (50) which passes through the mounting block (24) and the connecting seat (234).

9. The can sealing device according to any one of claims 1 to 8, characterized in that, The sealing device also includes an air extraction and inflation structure, which is connected to the sealing cover (22).

10. A can sealing production line, comprising can sealing equipment and a conveying structure, characterized in that, The sealing device is the sealing device according to any one of claims 1 to 9.

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