Sealing device, film sealing system and packaging machine

Abstract

The utility model relates to a sealing device, a film sealing system and a packaging machine. When a packaging film reaches the position between a first sealing piece and a second sealing piece, at least one of the first sealing piece and the second sealing piece is driven to move in the preset direction, so that the first sealing piece makes contact with the second sealing piece to clamp one end of the packaging film; and then, the first sealing piece and / or the second sealing piece are / is subjected to ultrasonic heating through an ultrasonic assembly, so that one end of the packaging film is fused and sealed. And meanwhile, the packaging film is cut through the cutter assembly, and the sealed packaging film is cut off. Due to the fact that ultrasonic waves achieve fusion of one end of the packaging film through high-frequency vibration waves, large-area fusion cannot be caused in a sealing opening, and the phenomena such as scalding and rotting caused by the fact that the film is thin are avoided. Therefore, through the sealing device, the influence of the quality of the packaging film is reduced, and the sealing quality is improved. And meanwhile, compared with a traditional heating pipe mode, heat generated in the operation process is low, the risk that workers are scalded in the machine adjusting process is reduced, and operation safety is improved.

Description

Technical Field

[0001] The present application relates to the field of sealing technology, and in particular to a sealing device, a film sealing system and a packaging machine. Background Art

[0002] For pull-out toilet paper, in order to ensure good sealing effect and improve the aesthetics of the product during automatic packaging, the sealing is generally completed by using an upper sealing toothed ironing plate and a lower sealing high-temperature silicone. For example: after the packaging film reaches the sealing position, the motor drives the upper and lower sealing movements to close the upper and lower sealings. At this time, the upper sealing toothed ironing plate fits with the lower sealing high-temperature silicone, and the packaging film melts and sticks together at high temperature. Finally, the seal is opened to complete the sealing of the packaging film.

[0003] However, due to differences in the quality of packaging films, some packaging films are relatively thin, and the packaging films are easily burned during traditional sealing. The toothed ironing plate is easy to stick to the melted packaging film, resulting in poor sealing problems. At the same time, it is easy to burn the staff when adjusting the machine, posing a safety hazard. Utility Model Content

[0004] Based on this, it is necessary to provide a sealing device, a film sealing system and a packaging machine to reduce the influence of the quality of the packaging film and improve the sealing quality; at the same time, reduce the risk of scalding and improve safety.

[0005] A sealing device, comprising: an upper mold including a first sealing member; a lower mold including a second sealing member, at least one of the first sealing member and the second sealing member being configured to move along a preset direction so as to make the two members contact or separate; an ultrasonic component for ultrasonically heating the first sealing member and / or the second sealing member; and a cutter component for cutting a packaging film clamped between the first sealing member and the second sealing member.

[0006] In the above-mentioned sealing device, when the packaging film reaches between the first sealing member and the second sealing member, at least one of the first sealing member and the second sealing member is driven to move in a preset direction, so that the first sealing member contacts the second sealing member to clamp one end of the packaging film; then, the first sealing member and / or the second sealing member are ultrasonically heated by the ultrasonic component, so that one end of the packaging film is fused and sealed. At the same time, the packaging film is cut by the cutting knife component to cut off the sealed packaging film. Since the ultrasonic wave uses high-frequency vibration waves to achieve the fusion of one end of the packaging film, large-scale melting will not be caused during the sealing, and the thin film will not cause scalding and other phenomena. In this way, through this sealing device, the influence of the quality of the packaging film is reduced and the sealing quality is improved. At the same time, compared with the traditional heating tube method, it generates less heat during operation, which can effectively reduce the risk of scalding staff during machine adjustment and improve operational safety.

[0007] In some embodiments, the ultrasonic component includes an ultrasonic transducer and a welding component connected to the ultrasonic transducer, the ultrasonic transducer is used to transmit ultrasonic waves to the welding component, and the upper mold or the lower mold is arranged at one end of the welding component.

[0008] In some embodiments, the sealing device further includes a mounting seat and a first fixing member disposed on the mounting seat, the welding component is fixed on the mounting seat, and the first fixing member is used for being installed in the film sealing system.

[0009] In some embodiments, there are two of the first seals and two of the second seals, a first cutting channel is formed between the two first seals, and a second cutting channel is formed between the two second seals. At least a portion of the cutter assembly is located in one of the first cutting channel and the second cutting channel and can extend into the other.

[0010] In some embodiments, the upper mold is disposed on the cutter assembly, the lower mold is disposed on the ultrasonic assembly, the cutter assembly is at least partially located in the first cutting channel, and can extend into the second cutting channel during sealing.

[0011] In some embodiments, the cutter assembly includes a driver and a cutter driven by the driver to move along the preset direction, and the cutter is located in the first cutting channel.

[0012] In some embodiments, the sealing device further includes a second fixing member, wherein the second fixing member is fixed to the cutter assembly, and the second fixing member is used to be installed in the film sealing system.

[0013] In some embodiments, one end of the second cutting channel away from the first cutting channel is configured as an arc surface, and the arc surface is concave along a side arc away from the second cutting channel in the preset direction.

[0014] A film sealing system, comprising the sealing device described in any one of the above items.

[0015] The above-mentioned film sealing system adopts the above-mentioned sealing device. When the packaging film reaches between the first sealing member and the second sealing member, at least one of the first sealing member and the second sealing member is driven to move along a preset direction, so that the first sealing member contacts the second sealing member to clamp one end of the packaging film; then, the first sealing member and / or the second sealing member are ultrasonically heated by the ultrasonic component, so that one end of the packaging film is fused and sealed. At the same time, the packaging film is cut by the cutter component to cut off the sealed packaging film. Since the ultrasonic wave uses high-frequency vibration waves to achieve the fusion of one end of the packaging film, large-scale melting will not be caused during the sealing, and the thin film will not cause scalding and other phenomena. In this way, through this sealing device, the influence of the quality of the packaging film is reduced and the sealing quality is improved. At the same time, compared with the traditional heating tube method, it generates less heat during operation, which can effectively reduce the risk of scalding staff during machine adjustment and improve operational safety.

[0016] A packaging machine comprises the film sealing system described above.

[0017] The above-mentioned packaging machine adopts the above-mentioned sealing device. When the packaging film reaches between the first seal and the second seal, at least one of the first seal and the second seal is driven to move in a preset direction, so that the first seal contacts the second seal to clamp one end of the packaging film; then, the first seal and / or the second seal are ultrasonically heated by the ultrasonic component, so that one end of the packaging film is fused and sealed. At the same time, the packaging film is cut by the cutter component to cut off the sealed packaging film. Since the ultrasonic wave uses high-frequency vibration waves to achieve the fusion of one end of the packaging film, large-scale melting will not be caused during the sealing, and the thin film will not cause scalding and other phenomena. In this way, through this sealing device, the influence of the quality of the packaging film is reduced and the sealing quality is improved. At the same time, compared with the traditional heating tube method, it generates less heat during operation, which can effectively reduce the risk of scalding staff during machine adjustment and improve operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the sealing device before sealing described in some embodiments of the present application.

[0019] Figure 2 This is a schematic diagram of the structure of the sealing device used in some embodiments of the present application.

[0020] Figure 3 This is a schematic diagram of the structure of the cooperation between the cutter assembly and the upper mold described in some embodiments of the present application.

[0021] Figure 4 This is a schematic diagram of the structure of the cooperation between the ultrasonic component and the lower mold described in some embodiments of the present application.

[0022] Figure 5for Figure 4 Enlarged view of the structure at center circle A.

[0023] 100, sealing device; 10, upper mold; 11, first sealing member; 12, first cutting channel; 20, lower mold; 21, second sealing member; 22, second cutting channel; 221, arc surface; 30, ultrasonic component; 31, ultrasonic transducer; 32, welding component; 40, cutter assembly; 41, driver; 42, cutter; 50, mounting seat; 51, first fixing member; 60, second fixing member; X, preset direction; 200, packaging film. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 on the present application.

[0026] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0030] In some embodiments, please refer to Figure 1 and Figure 2 The present application provides a sealing device 100, which includes: an upper mold 10, a lower mold 20, an ultrasonic assembly 30 and a cutter assembly 40. The upper mold 10 includes a first seal 11, and the lower mold 20 includes a second seal 21. At least one of the first seal 11 and the second seal 21 is configured to move along a preset direction X so that the two are in contact or separated. The ultrasonic assembly 30 is used to ultrasonically heat the first seal 11 and / or the second seal 21, and the cutter assembly 40 is used to cut the packaging film 200 clamped between the first seal 11 and the second seal 21.

[0031] The sealing device 100 described above, when the packaging film 200 reaches between the first sealing member 11 and the second sealing member 21, drives at least one of the first sealing member 11 and the second sealing member 21 to move along the preset direction X, so that the first sealing member 11 contacts the second sealing member 21 to clamp one end of the packaging film 200; then, the first sealing member 11 and / or the second sealing member 21 are ultrasonically heated by the ultrasonic component 30, so that one end of the packaging film 200 is fused and sealed. At the same time, the packaging film 200 is cut by the cutter component 40 to cut off the sealed packaging film 200. Since the ultrasonic wave uses high-frequency vibration waves to achieve the fusion of one end of the packaging film 200, it will not cause large-scale melting in the sealing, nor will it cause scalding due to the thin film. In this way, through the sealing device 100, the influence of the quality of the packaging film 200 is reduced, and the sealing quality is improved. At the same time, compared with the traditional heating tube method, it generates less heat during operation, which can effectively reduce the risk of scalding workers during machine adjustment and improve operational safety.

[0032] It should be noted that the ultrasonic component 30 refers to a device that uses heat energy generated by high-frequency vibration for welding, and it can ultrasonically heat only the upper mold 10 or the lower mold 20; it can also ultrasonically heat the upper mold 10 and the lower mold 20 at the same time, for example: two ultrasonic components 30 are set, the upper mold 10 is fixed on one of the ultrasonic components 30, and the lower mold 20 is fixed on the other ultrasonic component 30.

[0033] During the sealing process, the first seal 11 or the second seal 21 can be driven to move along the preset direction X alone, so that the first seal 11 and the second seal 21 are in contact or separated; the first seal 11 and the second seal 21 can also be driven to move toward or away from each other synchronously. There are many ways to drive the first seal 11 or the second seal 21, such as: driving the first seal 11 or the second seal 21 along the preset direction X through a cylinder, a hydraulic cylinder, an electric cylinder and other equipment; or driving the first seal 11 or the second seal 21 to move through a motor and a transmission mechanism, such as: a motor, a gear rack; a motor, a screw mechanism and the like.

[0034] It should also be noted that the cutter assembly 40 refers to a device that can cut the sealed packaging film 200 to form a complete separate packaging product. The cutter assembly 40 can be arranged at the upper mold 10 or at the lower mold 20.

[0035] In addition, the end faces of the first seal 11 and the second seal 21 can be designed as planes; at the same time, the end faces of the first seal 11 or the second seal 21 can be carved, for example: according to customer needs, patterns can be carved on the end face of the first seal 11 to obtain a more unique and beautiful seal.

[0036] For further information, please refer to Figure 1 The ultrasonic assembly 30 includes an ultrasonic transducer 31 and a welding component 32 connected to the ultrasonic transducer 31. The ultrasonic transducer 31 is used to transmit ultrasonic waves to the welding component 32. The upper mold 10 or the lower mold 20 is arranged at one end of the welding component 32. It can be seen that when the first sealing member 11 and the second sealing member 21 contact and clamp one end of the packaging film 200, the ultrasonic transducer 31 works to transmit ultrasonic waves to the welding component 32, and then the welding component 32 transmits the ultrasonic waves to the first sealing member 11 or the second sealing member 21, so that the packaging film 200 rubs up and down due to high-frequency vibration to form fusion between molecular layers, ensuring that the sealing of the packaging film 200 is more secure.

[0037] It should be noted that the ultrasonic transducer 31 refers to a device that converts input electrical power into mechanical power (i.e., ultrasonic waves) and then transmits it out. Since the structure of the ultrasonic transducer 31 itself is not the object of improvement in this embodiment, its specific structure can be referred to in existing literature or products and will not be introduced in detail here.

[0038] The welding component 32 can receive the ultrasonic wave transmitted by the ultrasonic transducer 31 and act on the first sealing member 11 or the second sealing member 21. When the first sealing member 11 or the second sealing member 21 is fixed to one end of the welding component 32, the welding component 32 can move along the preset direction X with the first sealing member 11 or the second sealing member 21.

[0039] The first seal 11 or the second seal 21 is fixed to the welding component 32 by, but not limited to, welding, clamping, bolting, etc. Of course, the first seal 11 or the second seal 21 and the welding component 32 can be an integrated structure, for example, during the molding process, they can be integrally molded by die casting, casting, etc.

[0040] For further information, please refer to Figure 1 The sealing device 100 further includes a mounting seat 50 and a first fixing member 51 disposed on the mounting seat 50. The welding component 32 is fixed on the mounting seat 50. The first fixing member 51 is used to be installed in the film sealing system. In this way, the mounting seat 50 facilitates the fixing of the welding component 32, and facilitates a stable sealing operation. At the same time, the first fixing member 51 enables the welding component 32 to be stably installed in the film sealing system.

[0041] In which, the film sealing system may include a sealing device 100 and a driving device for driving the first seal 11 and / or the second seal 21 to move. At this time, the first fixing member 51 can be installed on the driving end of the driving device, so that the welding component 32 can drive the first seal 11 or the second seal 21 to move together.

[0042] Optionally, the welding component 32 may be fixed on the mounting seat 50 by, but not limited to, bolt connection, clamping, riveting, welding, etc. At the same time, the connection between the first fixing member 51 and the mounting seat 50 may also be, but not limited to, bolt connection, clamping, riveting, welding, integrated molding, etc.

[0043] In some embodiments, please refer to Figure 3 and Figure 4 There are two first sealing members 11 and two second sealing members 21, and a first cutting channel 12 is formed between the two first sealing members 11, and a second cutting channel 22 is formed between the two second sealing members 21. At least a portion of the cutter assembly 40 is located in one of the first cutting channel 12 and the second cutting channel 22, and can extend into the other. It can be seen that when one end of the packaging film 200 is fused, a portion of the cutter assembly 40 extends from the first cutting channel 12 into the second cutting channel 22, or from the second cutting channel 22 into the first cutting channel 12, so that one end of the packaging film 200 is effectively cut off.

[0044] It should be noted that, during the sealing process, the first sealing member 11 is in one-to-one contact with the second sealing member 21, and at the same time, one end of the first cutting channel 12 is aligned with one end of the second cutting channel 22. A portion of the cutter assembly 40 can be disposed in the first cutting channel 12 or in the second cutting channel 22.

[0045] In addition, when the two first sealing members 11 are in corresponding contact with the two second sealing members 21 respectively, one end of the front and rear packaging films 200 can be sealed at the same time, which is beneficial to improve the sealing efficiency.

[0046] For further information, please refer to Figure 3 and Figure 4 The upper mold 10 is arranged on the cutter assembly 40, and the lower mold 20 is arranged on the ultrasonic assembly 30. The cutter assembly 40 is at least partially located in the first cutting channel 12 and can extend into the second cutting channel 22 when sealing. It can be seen that when the first sealing member 11 contacts the second sealing member 21, the ultrasonic assembly 30 works to ultrasonically heat the second sealing member 21, so that one end of the packaging film 200 is fused and sealed; then, the cutting assembly extends from the first cutting channel 12 into the second cutting channel 22, cutting off the connection between the front and rear packaging films 200 to form a separate packaging product.

[0047] For further information, please refer to Figure 3 The cutter assembly 40 includes a driver 41 and a cutter 42 driven by the driver 41 to move along a preset direction X, and the cutter 42 is located in the first cutting channel 12. With such a design, during cutting, the driver 41 drives the cutter 42 to move along the preset direction X, so that it extends from the first cutting channel 12 into the second cutting channel 22 to cut off the packaging film 200.

[0048] It should be noted that the driver 41 refers to a device that provides power for the movement of the cutter 42, which can be a cylinder, a hydraulic cylinder, an electric cylinder, etc., or a combination of a motor and a transmission mechanism, such as a combination of a motor and a screw mechanism, a combination of a motor and a gear rack, etc.

[0049] In some embodiments, please refer to Figure 1 The sealing device 100 further includes a second fixing member 60, which is fixed to the cutter assembly 40 and is used to be installed in the film sealing system. Thus, the cutter assembly 40 can be stably installed in the film sealing system through the second fixing member 60.

[0050] The film sealing system may include a sealing device 100 and a driving device for driving the first sealing member 11 to move. In this case, the second fixing member 60 may be installed on the driving end of the driving device so that the cutter assembly 40 can drive the first sealing member 11 to move together.

[0051] For further information, please refer to Figure 5 , the end of the second cutting channel 22 away from the first cutting channel 12 is constructed as an arc surface 221, and the arc surface 221 is concave along the arc on the side away from the second cutting channel 22 in the preset direction X. It can be seen that the arc surface 221 is concave along the side away from the second cutting channel 22, which can increase the depth of the second cutting channel 22 and avoid the risk of collision caused by the release of one end of the cutter 42 and one end of the second cutting channel 22 during cutting. At the same time, the connection between the two second sealing members 21 is designed as an arc surface 221, which can reduce stress concentration and improve the structural stability of the second sealing member 21 on the ultrasonic component 30.

[0052] In some embodiments, the present application provides a film sealing system, which includes any of the above sealing devices 100.

[0053] The above-mentioned film sealing system adopts the above-mentioned sealing device 100. When the packaging film 200 reaches between the first sealing member 11 and the second sealing member 21, at least one of the first sealing member 11 and the second sealing member 21 is driven to move along the preset direction X, so that the first sealing member 11 and the second sealing member 21 are in contact with each other to clamp one end of the packaging film 200; then, the first sealing member 11 and / or the second sealing member 21 are ultrasonically heated by the ultrasonic component 30, so that one end of the packaging film 200 is fused and sealed. At the same time, the packaging film 200 is cut by the cutter component 40 to cut off the sealed packaging film 200. Since the ultrasonic wave uses high-frequency vibration waves to achieve the fusion of one end of the packaging film 200, the sealing will not cause large-area melting, nor will it cause scalding due to the thin film. In this way, through the present sealing device 100, the influence of the quality of the packaging film 200 is reduced and the sealing quality is improved. At the same time, compared with the traditional heating tube method, it generates less heat during operation, which can effectively reduce the risk of scalding workers during machine adjustment and improve operational safety.

[0054] In some embodiments, the present application provides a packaging machine, which includes the above film sealing system.

[0055] The above-mentioned packaging machine adopts the above-mentioned sealing device 100. When the packaging film 200 reaches between the first sealing member 11 and the second sealing member 21, at least one of the first sealing member 11 and the second sealing member 21 is driven to move along the preset direction X, so that the first sealing member 11 and the second sealing member 21 are in contact with each other to clamp one end of the packaging film 200; then, the first sealing member 11 and / or the second sealing member 21 are ultrasonically heated by the ultrasonic component 30, so that one end of the packaging film 200 is fused and sealed. At the same time, the packaging film 200 is cut by the cutting knife component 40 to cut off the sealed packaging film 200. Since the ultrasonic wave uses high-frequency vibration waves to achieve the fusion of one end of the packaging film 200, the sealing will not cause large-area melting, nor will it cause scalding due to the thin film. In this way, through the present sealing device 100, the influence of the quality of the packaging film 200 is reduced and the sealing quality is improved. At the same time, compared with the traditional heating tube method, it generates less heat during operation, which can effectively reduce the risk of scalding workers during machine adjustment and improve operational safety.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0057] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A sealing device, characterized in that: The sealing device comprises: An upper mold (10) comprising a first sealing member (11); A lower mold (20) comprises a second sealing member (21), wherein at least one of the first sealing member (11) and the second sealing member (21) is configured to move along a preset direction (X) so as to make the two members contact or separate; An ultrasonic component (30) for ultrasonically heating the first sealing member (11) and / or the second sealing member (21); A cutter assembly (40) is used to cut the packaging film (200) clamped between the first sealing member (11) and the second sealing member (21).

2. The sealing device according to claim 1, characterized in that: The ultrasonic component (30) comprises an ultrasonic transducer (31) and a welding component (32) connected to the ultrasonic transducer (31), wherein the ultrasonic transducer (31) is used to transmit ultrasonic waves to the welding component (32), and the upper mold (10) or the lower mold (20) is arranged at one end of the welding component (32).

3. The sealing device according to claim 2, characterized in that: The sealing device further comprises a mounting seat (50) and a first fixing member (51) arranged on the mounting seat (50), the welding component (32) is fixed on the mounting seat (50), and the first fixing member (51) is used for being installed in the film sealing system.

4. The sealing device according to any one of claims 1 to 3, characterized in that: There are two of each of the first sealing member (11) and the second sealing member (21), a first cutting channel (12) is formed between the two first sealing members (11), and a second cutting channel (22) is formed between the two second sealing members (21), and at least a portion of the cutter assembly (40) is located in one of the first cutting channel (12) and the second cutting channel (22), and can extend into the other.

5. The sealing device according to claim 4, characterized in that: The upper mold (10) is arranged on the cutter assembly (40), the lower mold (20) is arranged on the ultrasonic assembly (30), and the cutter assembly (40) is at least partially located in the first cutting channel (12) and can extend into the second cutting channel (22) when sealing.

6. The sealing device according to claim 5, characterized in that: The cutter assembly (40) comprises a driver (41) and a cutter (42) driven by the driver (41) to move along the preset direction (X), and the cutter (42) is located in the first cutting channel (12).

7. The sealing device according to claim 5, characterized in that: The sealing device further comprises a second fixing member (60), wherein the second fixing member (60) is fixed on the cutter assembly (40), and the second fixing member (60) is used for being installed in the film sealing system.

8. The sealing device according to claim 4, characterized in that: One end of the second cutting channel (22) away from the first cutting channel (12) is constructed as an arc surface (221), and the arc surface (221) is concave along a side arc away from the second cutting channel (22) in the preset direction (X).

9. A film sealing system, characterized in that: The film sealing system comprises the sealing device according to any one of claims 1-8.

10. A packaging machine, characterized in that: The packaging machine comprises the film sealing system according to claim 9.

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