A film cutting and covering device and a film cutting and covering method

Abstract

The application relates to a film cutting and wrapping device and a film cutting and wrapping method. The film cutting and wrapping device comprises a film guiding assembly, a film cutting assembly, a film pressing assembly and a driving member. The film guiding assembly has a film outlet and a film outlet direction. The film cutting assembly comprises a static cutting member and a dynamic cutting member which are oppositely arranged at the film outlet along a shearing direction perpendicular to the film outlet direction. The film pressing assembly is arranged at a side of the dynamic cutting member away from the film outlet along the film outlet direction to form a spacing groove with the dynamic cutting member for the paper sheet and the film to enter. The film pressing assembly is movably connected to the dynamic cutting member. The driving member is drivingly connected to the dynamic cutting member to cut the film and wrap the film around the paper sheet. The driving member is drivingly connected to the film pressing assembly to be away from the two sides of the dynamic cutting member where the film is attached to the paper sheet. The film cutting and wrapping device provided by the application eliminates the device for conveying the film, reduces the interference of the film with the outside world, and improves the wrapping quality.

Description

Technical Field

[0001] This invention relates to the field of film cutting and edge wrapping technology, and in particular to a film cutting and edge wrapping device and method. Background Technology

[0002] Paper containers are currently one of the most widely used liquid packaging methods, such as paper cups. To address the issue of liquid leakage, the inner and outer surfaces of paper container substrates are generally coated with a PE film. However, existing paper containers typically only have a PE film on the inner and outer surfaces of the paper container substrate, while the cut edges of the substrate are not. When liquid comes into direct contact with the cut edges of the paper container substrate, it can easily leak into the interior of the substrate from the unprotected edges, affecting the lifespan of the paper container and the appearance of the packaging.

[0003] Existing paper sheet edge-sealing technology requires cutting the film into segments and then using rollers to roll the film along the edge of the paper sheet to adhere it to the edge. This edge-sealing technology requires a cutting station and an edge-sealing station, as well as a conveying mechanism between the two stations, resulting in a complex structure. In actual packaging, the film is prone to adhering to the rollers, leading to edge-sealing failure and potentially affecting the packaging of the next paper sheet. Summary of the Invention

[0004] Given the problems of complex edge-sealing device structure and easy adhesion of film to the roller used for edge-sealing in existing edge-sealing technologies, it is necessary to provide a film cutting edge-sealing device and a film cutting edge-sealing method.

[0005] A film-cutting and edge-wrapping device for edge-wrapping paper sheets using a film, comprising:

[0006] The membrane guiding assembly has a membrane outlet and a membrane outlet direction;

[0007] A film cutting assembly, comprising a static cutter and a dynamic cutter disposed opposite each other at the film outlet along a shearing direction perpendicular to the film outlet direction;

[0008] An edge-pressing assembly is provided at intervals along the film exit direction on the side of the movable cutter opposite to the film exit port to form a gap groove with the movable cutter for the paper sheet and the film to enter, and the edge-pressing assembly is movably connected to the movable cutter.

[0009] A driving component is connected to the movable cutter to move the movable cutter along the shearing direction. The movable cutter drives the edge pressing assembly to move so that the film wraps around the paper and enters the spacer groove together. The driving component is connected to the edge pressing assembly to move the edge pressing assembly in the opposite direction of the film exit direction so that the edge pressing assembly and the movable cutter together attach the film to the opposite sides of the paper.

[0010] With this configuration, the moving cutter can drive the edge-pressing assembly to move synchronously as it moves along the shearing direction. This allows the film cutting operation and the film wrapping operation to be performed simultaneously. Compared with traditional film cutting and edge-pressing technology, this saves the film transfer process, thereby saving production costs and preventing the film from getting dusty or wrinkled during transfer. In addition, this film cutting and edge-pressing method allows the film to be bent by the edge of the paper after being cut by the passive cutter. Under the action of the edge-pressing assembly, the edge of the paper and the film are firmly bonded, thus preventing moisture from entering from the edge of the paper.

[0011] In one embodiment, the movable cutter includes a slide rail and a movable cutter slidably mounted on the slide rail.

[0012] This design allows the sliding rail to move more smoothly, resulting in a clean cut on the film. This prevents the film from easily falling off after being attached to the paper, thus improving the quality of the film cutting and edge wrapping.

[0013] In one embodiment, the moving cutter has a moving edge toward the stationary cutter and a first clearance bevel toward the pressing assembly and extending to the moving edge.

[0014] With this configuration, the moving edge of the moving cutter contacts the film first, and the film will not be pulled or interfered with by other parts of the moving cutter during the cutting process, thus ensuring the flatness of the film cut.

[0015] In one embodiment, the pressing assembly includes a pressing plate and a connector, the connector being slidably connected to the movable cutter, and the pressing plate being fixedly connected to the connector.

[0016] With this configuration, the pressure plate can slide with the connector to press against the moving cutter, thereby attaching the film to the paper. There will be no misalignment between the pressure plate and the moving cutter, avoiding stretching of the film and improving the edge-sealing quality.

[0017] In one embodiment, the pressure plate has a first guide slope toward the static cutter.

[0018] With this configuration, when the pressure plate moves toward the paper sheet along with the cutter and presses against the film, the film bends smoothly under the guidance of the first guide slope, making it less prone to stretching and tearing, which helps improve the edge-binding quality.

[0019] In one embodiment, the movable cutter includes a sliding portion mounted on the slide rail and a cutter portion detachably connected to the sliding portion.

[0020] With this configuration, when the moving cutter is worn or slides abnormally, only the cutting part of the moving cutter needs to be replaced, thereby reducing the cost of maintenance and replacement.

[0021] In one embodiment, the static cutting member includes a mounting base and a static cutting blade detachably connected to the mounting base.

[0022] This setup makes it easy to replace the static cutter, and allows for the selection of different types and shapes of static cutters for different films.

[0023] In one embodiment, the membrane guide assembly includes a bracket fixedly connected to the mounting base and a membrane baffle plate fixedly connected to the mounting base, the membrane baffle plate being spaced apart from the mounting base to form a membrane outlet.

[0024] With this configuration, the baffle plate can reduce film swaying. The film outlet formed by the baffle plate and the mounting base is close to the shearing point of the static and dynamic cutters. Even if the film sticks to the dynamic cutter during the cutting process, the film can be quickly separated from the dynamic cutter by the baffle plate when the dynamic cutter finishes cutting and retracts, thus avoiding affecting the next film cutting and edge wrapping operation.

[0025] In one embodiment, the support has a second guide ramp facing the baffle plate.

[0026] This design facilitates the film passing through the outlet. When the film has wrinkles, the second guide slope on the support can guide the film to pass smoothly through the outlet, reducing film exit abnormalities.

[0027] In one embodiment, the baffle plate has a third guide ramp facing the mounting base.

[0028] With this design, the third guide slope also widens the width of the membrane entry point of the membrane guide assembly, further improving the smoothness of membrane exit.

[0029] In one embodiment, the stationary cutter has a stationary edge facing the moving cutter and a second relief slope facing the film outlet and extending to the stationary edge.

[0030] This configuration, with the static and dynamic cutting edges working together, further improves the smoothness of the film cut and prevents the film from being stretched, which could cause abnormal edge wrapping and film extrusion.

[0031] This application also provides a film cutting and edge wrapping method, which uses the above-mentioned film cutting and edge wrapping device and includes the following steps:

[0032] The moving cutter is driven and the edge pressing assembly moves along the shearing direction. The moving cutter and the stationary cutter cut the film, and the cut film wraps around the edge of the paper and completely enters the spacer groove.

[0033] The edge pressing assembly is driven to move toward the moving cutter to attach the film to the opposite sides of the paper sheet.

[0034] The film cutting and edge-wrapping method implemented by the film cutting and edge-wrapping device in this application can press the film against the edge of the paper while the static cutter and the moving cutter work together to cut the film. During this process, the film and the edge of the paper are tightly bonded, which can effectively prevent external water from seeping in from the edge of the paper and improve the edge-wrapping quality. Under the action of the edge-pressing component, the film and the paper are firmly bonded, which further improves the edge-wrapping quality. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the film cutting and edge-wrapping device in one embodiment of the present invention;

[0036] Figure 2 for Figure 1 A cross-sectional view of the film cutting and edge-wrapping device shown;

[0037] Figure 3 for Figure 2 A magnified view of the film cutting and edge-sealing device at point X;

[0038] Figure 4 for Figure 2 Schematic diagram of the structure of the moving cutting component;

[0039] Figure 5 for Figure 2 Schematic diagram of the structure of the intermediate static cutting part;

[0040] Figure 6 for Figure 2 A schematic diagram of the structure of the middle pressure edge component.

[0041] Figure label:

[0042] 100. Film cutting and edge wrapping device; 101. Spacing groove; 10. Film guiding assembly; 11. Film outlet; 12. Film outlet direction; 13. Support; 131. Second guide slope; 14. Film baffle plate; 20. Film cutting assembly; 21. Static cutting component; 211. Mounting base; 212. Static cutting blade; 2121. Static cutting edge; 2122. Second clearance slope; 22. Moving cutting component; 221. Slide rail; 222. Moving cutting... Knife; 2221, Moving edge; 2222, First clearance bevel; 2223, Screw countersunk hole; 2224, Cutting part; 2225, Sliding part; 2226, Extension part; 2227, Through hole; 23, Cutting direction; 30, Edge pressing assembly; 31, Pressure plate; 311, First guide bevel; 32, Connector; 321, Stop part; 322, Connecting part; 201, Film; 202, Paper. Detailed Implementation

[0043] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0049] Existing paper sheet edge-sealing technology requires cutting the film into segments and then using rollers to roll the film along the edge of the paper sheet to adhere it to the edge. This edge-sealing technology requires a cutting station and an edge-sealing station, as well as a conveying mechanism between the two stations, resulting in a complex structure. In actual packaging, the film is prone to adhering to the rollers, leading to edge-sealing failure and potentially affecting the packaging of the next paper sheet.

[0050] Given the problems of complex edge-sealing device structure and easy adhesion of film to the roller used for edge-sealing in existing edge-sealing technologies, it is necessary to provide a film cutting edge-sealing device and a film cutting edge-sealing method.

[0051] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the film cutting and edge-wrapping device 100 in one embodiment of the present invention. Figure 2 for Figure 1 The cross-sectional view of the film cutting and edge-wrapping device 100 shown is shown. Figure 3 for Figure 2 A partial enlarged view of the film cutting and edge-sealing device 100 at point X.

[0052] This application provides a film cutting and edge-wrapping device 100 for wrapping paper sheet 202 with film 201, including film guiding assembly 10, film cutting assembly 20, edge pressing assembly 30 and driving component.

[0053] The film guiding assembly 10 has a film outlet 11 and a film outlet direction 12. The film cutting assembly 20 includes a stationary cutter 21 and a movable cutter 22 disposed opposite to each other at the film outlet 11 along a shearing direction 23 perpendicular to the film outlet direction 12. The edge pressing assembly 30 is disposed at intervals along the film outlet direction 12 on the side of the movable cutter 22 away from the film outlet 11 to form a gap groove 101 with the movable cutter 22 for the paper sheet 202 and the film 201 to enter. The edge pressing assembly 30 is movably connected to the movable cutter. The drive unit is connected to the movable cutter 22 to move the movable cutter 22 along the shearing direction 23. The movable cutter 22 drives the edge pressing assembly 30 to move so that the film 201 wraps the paper 202 and enters the spacer groove 101 together. The drive unit is connected to the edge pressing assembly 30 to move the edge pressing assembly 30 in the opposite direction of the film exit direction 12 so that the edge pressing assembly 30 and the movable cutter 22 together attach the film 201 to the opposite sides of the paper 202.

[0054] Compared to transmission technology, the film cutting and edge-wrapping device 100 provided in this application has at least the following advantages:

[0055] On the one hand, when the moving cutter 222 moves along the shearing direction 23, it can drive the edge pressing component 30 to move synchronously, so that cutting the film 201 and wrapping the edge of the paper 202 with the film 201 can be done at the same time. Compared with the traditional film cutting and edge wrapping technology, the process of transferring the film 201 is saved, thereby saving production costs and avoiding the film 201 from getting dusty or wrinkled during transfer.

[0056] On the other hand, this film-cutting and edge-wrapping method allows the film 201 to be bent by the edge of the paper 202 after being cut by the passive cutter 222. Under the action of the edge-pressing component 30, the edge of the paper 202 is firmly bonded to the film 201, thereby preventing moisture from entering from the edge of the paper 202.

[0057] Please refer to the following: Figure 2 , Figure 3 and Figure 4 , Figure 4 for Figure 2 A schematic diagram of the structure of the moving cutting component 22.

[0058] Optionally, in one embodiment of the present invention, the movable cutter 22 includes a slide rail 221 and a movable cutter 222 slidably mounted on the slide rail 221. The slide rail 221 makes the movable cutter 222 move more smoothly, and the cut of the film 201 is flat, so that the film 201 will not be easily detached from the paper sheet 202 after being attached by external force, thus improving the quality of film cutting and edge wrapping.

[0059] Optionally, in one embodiment of the present invention, the moving cutter 222 has a moving edge 2221 facing the stationary cutter 21 and a first clearance slope 2222 facing the pressing assembly 30 and extending to the moving edge 2221. In this way, the moving edge 2221 of the moving cutter 222 preferentially contacts the film 201, and the film 201 will not be pulled or interfered with by other parts of the moving cutter 222 during the cutting process, thereby ensuring the flatness of the cut of the film 201.

[0060] Optionally, in one embodiment of the present invention, the movable cutter 222 includes a sliding portion 2225 mounted on the slide rail 221 and a cutter portion 2224 detachably connected to the sliding portion 2225, which facilitates the replacement of the cutter and reduces the cost of maintenance and replacement.

[0061] Specifically, in the above embodiment, the sliding part 2225 has a screw countersunk hole 2223, and the sliding part 2225 and the cutting part 2224 are connected by bolts.

[0062] Furthermore, in one embodiment of the present invention, the moving cutter 222 further includes an extension 2226 extending along the shearing direction 23 from the side of the cutter portion 2224 near the film outlet 11, and the extension 2226 abuts against the side of the stationary cutter 21 away from the film outlet 11.

[0063] Please refer to the following: Figure 3 and Figure 6 , Figure 6 for Figure 2 A schematic diagram of the structure of the middle pressure edge component 30.

[0064] Specifically, in one embodiment of the present invention, the edge-pressing assembly 30 includes a pressure plate 31 and a connector 32. The connector 32 is slidably connected to the movable cutter 222, and the pressure plate 31 is fixedly connected to the connector 32. In this way, the pressure plate 31 can slide along the connector 32 to press against the movable cutter 222, thereby attaching the film 201 to the paper sheet 202. There will be no misalignment between the pressure plate 31 and the movable cutter 222, avoiding stretching of the film 201 and improving the edge-pressing quality.

[0065] Specifically, in one embodiment of the present invention, the connector 32 includes a stop portion 321 and a connecting portion 322. The connecting portion 322 is fixedly connected to the pressure plate 31. The stop portion 321 is located at the end of the connecting portion 322 away from the pressure plate 31. The movable cutter 222 is also provided with a through hole 2227 for the connecting portion 322 to pass through. The stop portion 321 is used to abut against the side of the movable cutter 222 away from the pressure plate 31.

[0066] Optionally, in one embodiment of the present invention, the pressure plate 31 has a first guide slope 311 facing the stationary cutter 21. When the pressure plate 31 moves toward the paper sheet 202 together with the moving cutter 222 and presses against the film 201, the film 201 bends smoothly under the guidance of the first guide slope 311, and is not easily stretched and torn, which is beneficial to improving the edge binding quality.

[0067] Please see Figure 3 and Figure 5 , Figure 5 for Figure 2 A schematic diagram of the structure of the intermediate static cutting part 21.

[0068] Optionally, in one embodiment of the present invention, the static cutting member 21 includes a mounting base 211 and a static cutting blade 212 detachably connected to the mounting base 211. This makes it easy to replace the static cutting blade 212, and allows for the selection of different types and shapes of static cutting blades 212 according to different films 201.

[0069] Optionally, in one embodiment of the present invention, the stationary cutter 212 has a stationary cutting edge 2121 facing the moving cutter 222, and a second relief slope 2122 facing the film outlet 11 and extending to the stationary cutting edge 2121. The stationary cutting edge 2121 cooperates with the moving cutting edge 2221 to further improve the flatness of the cut of the film 201 and avoid the film 201 being stretched, which would cause abnormal edge wrapping and abnormal film exit.

[0070] Please refer to it again. Figure 2 and Figure 3 Optionally, in one embodiment of the present invention, the film guiding assembly 10 includes a bracket 13 fixedly connected to the mounting base 211 and a baffle plate 14 fixedly connected to the mounting base 211. The baffle plate 14 is spaced apart from the mounting base 211 to form a film outlet 11. The baffle plate 14 can reduce the shaking of the film 201. The film outlet 11 formed by the baffle plate 14 and the mounting base 211 is close to the cutting point of the static cutter 212 and the moving cutter 222. Even if the film 201 sticks to the moving cutter 222 during the cutting process, when the moving cutter 222 finishes cutting and retracts, the film 201 can be quickly separated from the moving cutter 222 by the stop of the baffle plate 14, avoiding affecting the next film cutting and edge wrapping operation.

[0071] Optionally, in one embodiment of the present invention, the support 13 has a second guide slope 131 facing the baffle plate 14. This facilitates the passage of the film 201 through the outlet 11. When the film 201 has wrinkles, the second guide slope 131 on the support 13 can guide the film 201 to pass smoothly through the outlet 11, reducing abnormal film exit.

[0072] Furthermore, in the above embodiment, the baffle plate 14 has a third guide slope facing the mounting base 211, and the third guide slope also expands the inlet width of the membrane guide assembly 10, further improving the smoothness of membrane exit.

[0073] This application also provides a film cutting and edge wrapping method, using the above-mentioned film cutting and edge wrapping device 100, the specific steps of which are as follows:

[0074] The moving cutter 22 is driven and the edge pressing assembly 30 moves along the shearing direction 23. The moving cutter 22 and the stationary cutter 21 cut the film 201. At the same time, the cut film 201 wraps around the edge of the paper 202 and completely enters the spacer groove 101.

[0075] The drive edge pressing assembly 30 moves toward the moving cutter 22 to attach the film 201 to the opposite sides of the paper sheet 202.

[0076] The film cutting and edge wrapping method implemented by the film cutting and edge wrapping device 100 in this application can press the film 201 against the edge of the paper sheet 202 while the static cutter 212 and the moving cutter 222 are cutting the film 201. During this process, the film 201 and the edge of the paper sheet 202 are tightly attached, which can effectively prevent external water from seeping in from the edge of the paper sheet 202, thus improving the edge wrapping quality. Under the action of the edge pressing component 30, the film 201 and the paper sheet 202 are firmly attached, which further improves the edge wrapping quality.

[0077] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A film-cutting and edge-wrapping device for edge-wrapping paper sheets (202) using a film (201), characterized in that, include: A membrane guide assembly (10) has a membrane outlet (11) and a membrane outlet direction (12). The film cutting assembly (20) includes a static cutter (21) and a dynamic cutter (22) disposed opposite to each other at the film outlet (11) along a shearing direction (23) perpendicular to the film outlet direction (12). The dynamic cutter (22) includes a slide rail (221) and a dynamic cutter (222) slidably mounted on the slide rail (221). An edge-pressing assembly (30) is spaced along the film exit direction (12) on the side of the movable cutter (22) away from the film exit (11) to form a gap groove (101) with the movable cutter (22) for the paper sheet (202) and the film (201) to enter. The edge-pressing assembly (30) is movably connected to the movable cutter (22). The edge-pressing assembly (30) includes a pressure plate (31) and a connector (32). The connector (32) is slidably connected to the movable cutter (222), and the pressure plate (31) is fixedly connected to the connector (32). as well as A driving member is connected to the moving cutter (22) to move the moving cutter (22) along the shearing direction (23). The moving cutter (22) drives the pressing assembly (30) to move so that the film (201) wraps the paper (202) and enters the spacer groove (101). The driving member is connected to the pressing assembly (30) to move the pressing assembly (30) in the opposite direction of the film exit direction (12) so that the pressing assembly (30) and the moving cutter (22) jointly attach the film (201) to the opposite sides of the paper (202).

2. The film cutting and edge-wrapping device according to claim 1, characterized in that, The moving cutter (222) has a moving edge (2221) facing the stationary cutter (21) and a first relief bevel (2222) facing the pressing assembly (30) and extending to the moving edge (2221).

3. The film cutting and edge-wrapping device according to claim 1, characterized in that, The pressure plate (31) has a first guide slope (311) facing the static cutter (21).

4. The film cutting and edge-wrapping device according to claim 1, characterized in that, The movable cutter (222) includes a sliding part (2225) mounted on the slide rail (221) and a cutter part (2224) detachably connected to the sliding part (2225).

5. A film cutting and edge-wrapping device according to any one of claims 1 to 4, characterized in that, The static cutting component (21) includes a mounting base (211) and a static cutting blade (212) detachably connected to the mounting base (211).

6. The film cutting and edge-wrapping device according to claim 5, characterized in that, The membrane guide assembly (10) includes a bracket (13) fixedly connected to the mounting base (211) and a membrane baffle (14) fixedly connected to the mounting base (211). The membrane baffle (14) is spaced apart from the mounting base (211) to form a membrane outlet (11).

7. The film cutting and edge-wrapping device according to claim 6, characterized in that, The support (13) has a second guide ramp (131) facing the baffle plate (14); and / or The baffle plate (14) has a third guide slope facing the mounting base (211).

8. The film cutting and edge-wrapping device according to claim 7, characterized in that, The stationary cutter (212) has a stationary edge (2121) facing the moving cutter (222) and a second relief slope (2122) facing the membrane outlet (11) and extending to the stationary edge (2121).

9. A method for cutting and sealing film edges, characterized in that, The film cutting and edge-wrapping device (100) according to any one of claims 1 to 8 includes the following steps: Drive the moving cutter (22) and move the pressing assembly (30) along the shearing direction (23). The moving cutter (22) and the stationary cutter (21) cut the film (201). At the same time, the cut film (201) wraps around the edge of the paper (202) and completely enters the spacer groove (101). Drive the edge pressing assembly (30) toward the moving cutter (22) to attach the film (201) to the opposite sides of the paper sheet (202).

Images