A high-speed vertical vacuum film stretching continuous longitudinal sealing device

Abstract

This utility model provides a high-speed vertical vacuum film stretching and continuous longitudinal sealing device, relating to the field of vertical packaging machine technology. It includes a feeding and forming mechanism, a vacuum film stretching mechanism, and a continuous longitudinal sealing mechanism. The feeding and forming mechanism is vertically arranged for feeding materials and forming bags. The vacuum film stretching mechanism is located to the side of the feeding and forming mechanism for bag conveying. The continuous longitudinal sealing mechanism includes a longitudinal sealing support, a continuous longitudinal sealing assembly, and a distance adjustment assembly. The distance adjustment assembly is fixedly mounted on the longitudinal sealing support and connected to the continuous longitudinal sealing assembly. The distance adjustment assembly can adjust the distance between the continuous longitudinal sealing assembly and the feeding and forming mechanism. In practical applications, this utility model can adjust the continuous longitudinal sealing assembly to a suitable position according to the actual thickness of the packaging film using the distance adjustment assembly. This not only results in a significant longitudinal sealing effect but also makes it suitable for packaging films of different thicknesses, offering a wide range of applications. Furthermore, the continuous longitudinal sealing method ensures high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vertical packaging machine technology, specifically to a high-speed vertical machine vacuum film stretching and continuous longitudinal sealing device. Background Technology

[0002] Vertical packaging machines are automated packaging equipment widely used in the food, pharmaceutical, and chemical industries. They adopt a vertical operation mode and are characterized by high efficiency, precision, and flexibility.

[0003] As an important component of vertical packaging machines, the longitudinal sealing device is indispensable. Traditional vertical packaging machines usually adopt a fixed structure design for their longitudinal sealing devices. The distance between the longitudinal sealing heating steel belt and the forming feeding tube is set by the equipment at the factory. When the thickness of the packaging material changes, the fixed distance will cause uneven sealing pressure, resulting in incomplete sealing or excessive crushing, which will affect the longitudinal sealing effect. Therefore, it is usually only suitable for longitudinal sealing of packaging bags of a single specification, and its application range is limited. Utility Model Content

[0004] The purpose of this utility model is to provide a high-speed vertical vacuum film stretching and continuous longitudinal sealing device to solve the above-mentioned technical problems in the prior art; the preferred technical solution among the many technical solutions provided by this utility model can produce many technical effects, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a high-speed vertical vacuum film stretching and continuous longitudinal sealing device, including a feeding and forming mechanism, a vacuum film stretching mechanism, and a continuous longitudinal sealing mechanism, wherein: the feeding and forming mechanism is vertically arranged and used for feeding items and forming bags; the vacuum film stretching mechanism is arranged to the side of the feeding and forming mechanism and is used for bag conveying; the continuous longitudinal sealing mechanism includes a longitudinal sealing support, a continuous longitudinal sealing assembly, and a distance adjustment assembly, the distance adjustment assembly is fixedly arranged on the longitudinal sealing support and connected to the continuous longitudinal sealing assembly, and the distance adjustment assembly can adjust the distance between the continuous longitudinal sealing assembly and the feeding and forming mechanism.

[0007] Preferably, the distance adjustment assembly includes an adjusting screw and a sliding guide assembly. The sliding guide assembly includes a sliding guide member and a slide rod, wherein: the sliding guide member is fixedly mounted on the longitudinal sealing bracket, and a threaded hole and a guide hole are provided through the sliding guide member; the adjusting end of the adjusting screw is fixedly mounted with a handle, and the connecting end of the adjusting screw passes through the threaded hole and is rotatably connected to the continuous longitudinal sealing assembly; the connecting end of the slide rod slides through the guide hole and is fixedly connected to the continuous longitudinal sealing assembly.

[0008] Preferably, the continuous longitudinal sealing assembly includes a longitudinal sealing mounting assembly, a longitudinal sealing power assembly, a longitudinal sealing drive wheel, a longitudinal sealing driven wheel, a longitudinal sealing steel belt, a longitudinal sealing telescopic assembly, and a heating block, wherein: the connecting end of the slide rod is fixedly connected to the longitudinal sealing mounting assembly; the longitudinal sealing power assembly is fixedly mounted on the longitudinal sealing mounting assembly, and the output end of the longitudinal sealing power assembly is connected to the longitudinal sealing drive wheel and can drive the longitudinal sealing drive wheel to rotate; the longitudinal sealing driven wheel is rotatably mounted on the longitudinal sealing mounting assembly and is connected to the longitudinal sealing drive wheel through the longitudinal sealing steel belt; the fixed end of the longitudinal sealing telescopic assembly is rotatably connected to the connecting end of the adjusting screw, and the telescopic end of the longitudinal sealing telescopic assembly is connected to the longitudinal sealing mounting assembly; the heating block is disposed inside the longitudinal sealing steel belt and slides with the longitudinal sealing steel belt.

[0009] Preferably, the continuous longitudinal sealing assembly further includes an elastic support assembly, which includes a support shaft and a spring sheet, wherein: the spring sheet is fixedly disposed on the longitudinal sealing mounting assembly; the support shaft is fixedly disposed on the spring sheet and connected to the heating block.

[0010] Preferably, the high-speed vertical vacuum film stretching continuous longitudinal sealing device includes a support mechanism, and the feeding and forming mechanism and the vacuum film stretching mechanism are both mounted on the support mechanism; the two ends of the longitudinal sealing bracket are rotatably connected to the support mechanism through quick-release pins.

[0011] Preferably, the feeding and forming mechanism includes a feeding hopper, a feeding pipe, and a collar forming device, wherein the feeding hopper is disposed at the top of the feeding pipe; the feeding pipe is vertically arranged, and the bottom discharge end of the feeding pipe is provided with an opening bag-supporting structure; the collar forming device is disposed on the feeding pipe and located below the feeding hopper.

[0012] Preferably, the high-speed vertical vacuum film stretching and continuous longitudinal sealing device includes a film feeding roller mechanism, which includes multiple parallel film feeding rollers. The bag film conveyed by the film feeding rollers can be wrapped onto the feed tube by the collar forming device to form a bag body.

[0013] Preferably, the vacuum film stretching mechanism includes a clamping drive assembly and two vacuum film stretching assemblies symmetrically arranged on both sides of the feeding and forming mechanism, wherein the two vacuum film stretching assemblies are connected to the clamping drive assembly and can move towards each other under the drive of the clamping drive assembly to adsorb and transport the bag.

[0014] Preferably, the clamping drive assembly includes a film stretching and telescopic assembly and a horizontal guide assembly, wherein: the number of film stretching and telescopic assemblies is set to two, and the telescopic ends of the two film stretching and telescopic assemblies are respectively connected to the two vacuum film stretching assemblies; the horizontal guide assembly includes a horizontal guide member and two sets of sliding members slidably disposed on the horizontal guide member, and the two sets of sliding members are respectively fixedly connected to the two vacuum film stretching assemblies.

[0015] Preferably, the vacuum film stretching assembly includes a film stretching power assembly, a film stretching drive wheel, a film stretching driven wheel, a film stretching adsorption belt, a vacuum block, and a vacuum tube, wherein: the output end of the film stretching power assembly is connected to the film stretching drive wheel and can drive the film stretching drive wheel to rotate; the film stretching driven wheel is connected to the film stretching drive wheel through the film stretching adsorption belt; the film stretching adsorption belt is provided with adsorption grooves; the vacuum block is located inside the film stretching adsorption belt, the adsorption port of the vacuum block faces the film stretching adsorption belt, and the vacuum block is connected to the vacuum tube.

[0016] The high-speed vertical vacuum film stretching and continuous longitudinal sealing device provided by this utility model has at least the following beneficial effects:

[0017] The high-speed vertical vacuum film stretching and continuous longitudinal sealing device includes a feeding and forming mechanism, a vacuum film stretching mechanism, and a continuous longitudinal sealing mechanism. The feeding and forming mechanism is vertically arranged, and the vacuum film stretching mechanism is located to the side of the feeding and forming mechanism. The feeding and forming mechanism is used for feeding the items to be packaged and for forming the bag film into a bag body. The continuous longitudinal sealing mechanism is used for heat sealing the seams of the bag body.

[0018] The continuous longitudinal sealing mechanism includes a longitudinal sealing support, a continuous longitudinal sealing assembly, and a distance adjustment assembly. The distance adjustment assembly is fixedly mounted on the longitudinal sealing support and connected to the continuous longitudinal sealing assembly. The distance adjustment assembly can adjust the distance between the continuous longitudinal sealing assembly and the feeding and forming assembly. In actual use, when changing to packaging film of other thicknesses, the distance adjustment assembly can be used to adjust the distance between the continuous longitudinal sealing assembly and the feeding and forming assembly, thereby effectively ensuring the longitudinal sealing effect of the continuous longitudinal sealing assembly. Using the continuous longitudinal sealing assembly can effectively improve the longitudinal sealing efficiency.

[0019] In practical applications, this invention can adjust the continuous longitudinal sealing component to a suitable position according to the actual thickness of the packaging film using the distance adjustment component. Not only is the longitudinal sealing effect significant, but it is also applicable to packaging films of different thicknesses, making it widely applicable. Furthermore, the continuous longitudinal sealing method results in high production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the material feeding and forming mechanism of this utility model;

[0023] Figure 3 This is a front view schematic diagram of the vacuum film stretching mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the vacuum film stretching mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the continuous longitudinal sealing mechanism of this utility model;

[0026] Figure 6 This is a schematic diagram of the continuous longitudinal sealing mechanism with the support frame of this utility model in the open state;

[0027] Figure 7 This is a schematic diagram of the continuous longitudinal sealing assembly and the distance adjustment assembly of this utility model;

[0028] Figure 8 This is a schematic diagram of the continuous longitudinal sealing component and the distance adjustment component of this utility model from the main view.

[0029] Figure Labels

[0030] 1. Material feeding and forming mechanism; 11. Material feeding hopper; 12. Material feeding pipe; 13. Collar forming device; 14. Opening bag support structure; 2. Vacuum film stretching mechanism; 21. Vacuum film stretching assembly; 211. Film stretching power assembly; 212. Film stretching drive wheel; 213. Film stretching driven wheel; 214. Film stretching adsorption belt; 215. Vacuum block; 216. Vacuum tube; 22. Clamping drive assembly; 221. Film stretching telescopic assembly; 222. Horizontal guide; 223. Sliding component; 3. Continuous longitudinal sealing mechanism; 31. Longitudinal sealing bracket; 311. Quick-release pin; 32. Continuous longitudinal sealing assembly; 321. Longitudinal sealing mounting assembly; 322. Longitudinal sealing power assembly; 323. Longitudinal sealing drive wheel; 324. Longitudinal sealing driven wheel; 325. Longitudinal sealing steel belt; 326. Longitudinal sealing telescopic assembly; 327. Heating block; 328. Support shaft; 329. Spring; 33. Distance adjustment assembly; 331. Adjusting screw; 332. Slide rod; 333. Sliding guide; 3331. Threaded hole; 3332. Guide hole; 4. Support mechanism; 5. Film feed roller mechanism. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] This utility model provides a high-speed vertical vacuum film stretching and continuous longitudinal sealing device, such as... Figures 1 to 8 As shown, the high-speed vertical vacuum film stretching and continuous longitudinal sealing device includes a feeding and forming mechanism 1, a vacuum film stretching mechanism 2, and a continuous longitudinal sealing mechanism 3.

[0033] The material feeding and forming mechanism 1 is set vertically and is used for material feeding and bag forming.

[0034] The vacuum film stretching mechanism 2 is located on the side of the feeding and forming mechanism 1 and is used for bag conveying.

[0035] The continuous longitudinal sealing mechanism 3 includes a longitudinal sealing support 31, a continuous longitudinal sealing assembly 32, and a distance adjustment assembly 33. The distance adjustment assembly 33 is fixedly mounted on the longitudinal sealing support 31 and connected to the continuous longitudinal sealing assembly 32.

[0036] During operation, the film is formed into a bag body by the feeding and forming mechanism 1. The vacuum film stretching mechanism 2 assists in the forming of the bag body on the one hand, and is used for bag body conveying on the other hand. During the movement of the bag body, the continuous longitudinal sealing component 32 heat seals the seam of the bag body.

[0037] During the above process, depending on the thickness of the bag film, the distance adjustment component 33 can adjust the distance between the continuous longitudinal sealing component 32 and the feeding and forming mechanism 1 to a suitable spacing, thereby effectively ensuring the longitudinal sealing effect.

[0038] In practical applications, this invention can adjust the continuous longitudinal sealing component 32 to a suitable spacing according to the actual thickness of the packaging film through the distance adjustment component 33. This not only effectively ensures the longitudinal sealing effect but also has a wide range of applications. Furthermore, the use of continuous longitudinal sealing can effectively improve production efficiency.

[0039] As an optional implementation, the distance adjustment component 33 includes an adjustment screw 331 and a sliding guide component. The sliding guide component includes a sliding guide 333 and a slide rod 332. The sliding guide 333 is fixedly mounted on the longitudinal sealing bracket 31. The sliding guide 333 has a threaded hole 3331 and a guide hole 3332 through it. The longitudinal sealing bracket 31 is configured as a frame structure.

[0040] The adjusting end of the adjusting screw 331 is fixedly provided with a handle, and the connecting end of the adjusting screw 331 passes through the threaded hole 3331 and is rotatably connected to the continuous longitudinal sealing assembly 32. The adjusting screw 331 is threadedly engaged with the threaded hole 3331.

[0041] The screw-type adjustment structure allows for easy distance adjustment simply by rotating the screw, while also providing a self-locking function that ensures a more stable adjustment position.

[0042] The connecting end of the slide rod 332 slides through the guide hole 3332 and is connected to the continuous longitudinal sealing assembly 32. The slide rod 332 and the guide hole 3332 are in sliding fit. The sliding guide 333 and the slide rod 332 cooperate with each other to effectively limit the movement trajectory of the continuous longitudinal sealing assembly 32 during the distance adjustment process.

[0043] When adjusting the distance, turn the handle, and the adjusting screw 331 will rotate synchronously. Under the guidance and limiting action of the slide bar 332, the adjusting screw 331 will move axially, thereby driving the continuous longitudinal sealing assembly 32 to move synchronously and complete the adjustment.

[0044] As an optional implementation, the continuous longitudinal sealing assembly 32 includes a longitudinal sealing mounting assembly 321, a longitudinal sealing power assembly 322, a longitudinal sealing drive wheel 323, a longitudinal sealing driven wheel 324, a longitudinal sealing steel belt 325, a longitudinal sealing telescopic assembly 326, and a heating block 327.

[0045] The connecting end of the slide bar 332 is fixedly connected to the longitudinal sealing mounting assembly 321.

[0046] The longitudinal sealing power assembly 322 is an electric power assembly, including a servo motor, which is fixedly mounted on the longitudinal sealing mounting assembly 321. The output end of the longitudinal sealing power assembly 322 is connected to the longitudinal sealing drive wheel 323 and can drive the longitudinal sealing drive wheel 323 to rotate.

[0047] The driven wheel 324 of the longitudinal seal is rotatably mounted on the longitudinal seal mounting assembly 321 and is connected to the driving wheel 323 of the longitudinal seal via the longitudinal seal steel belt 325.

[0048] The fixed end of the longitudinal sealing telescopic assembly 326 is rotatably connected to the connecting end of the adjusting screw 331, and the telescopic end of the longitudinal sealing telescopic assembly 326 is connected to the longitudinal sealing mounting assembly 321; the longitudinal sealing telescopic assembly 326 is preferably a pneumatic telescopic assembly, including a cylinder.

[0049] The heating block 327 is located inside the longitudinal sealing steel strip 325 and slides in cooperation with the longitudinal sealing steel strip 325.

[0050] During the longitudinal sealing process, the longitudinal sealing power component 322 drives the longitudinal sealing drive wheel 323 to rotate. With the assistance of the longitudinal sealing driven wheel 324, the longitudinal sealing steel belt 325 rotates. At the same time, the longitudinal sealing telescopic component 326 extends, causing the rotating longitudinal sealing steel belt 325 to contact the seam of the bag. At this time, the heating block 327 heats up, and the longitudinal sealing steel belt 325 heats up the seam of the bag.

[0051] The use of a belt structure with continuous longitudinal sealing can significantly improve production efficiency.

[0052] As an optional implementation, the continuous longitudinal sealing assembly 32 further includes an elastic support assembly, which includes a support shaft 328 and a spring sheet 329, and the longitudinal sealing mounting assembly 321 includes a mounting block, which is disposed inside the longitudinal sealing steel strip 325.

[0053] The spring piece 329 is fixedly mounted on the mounting block at its center position; the number of support shafts 328 is set to two, symmetrically arranged at both ends of the spring piece 329, and connected to the heating block 327. In this way, the heating block 327 can be flexibly connected to the longitudinal sealing steel strip 325, effectively ensuring the continuous longitudinal sealing effect.

[0054] As an optional implementation, the high-speed vertical vacuum film stretching continuous longitudinal sealing device includes a support mechanism 4, and the feeding and forming mechanism 1 and the vacuum film stretching mechanism 2 are both mounted on the support mechanism 4.

[0055] The two ends of the longitudinal sealing bracket 31 are rotatably connected to the support mechanism 4 via quick-release pins 311.

[0056] In actual use, the longitudinal sealing bracket 31 can be flipped by disassembling the quick-release pin 311 at one end of the longitudinal sealing bracket 31, which facilitates the later maintenance of the device.

[0057] As an optional implementation, the feeding and forming mechanism 1 includes a feeding hopper 11, a feeding pipe 12, and a collar forming device 13.

[0058] The feeding hopper 11 is located at the top of the feeding pipe 12; it is used to hold products to be packaged.

[0059] The feeding pipe 12 is set vertically, and the bottom discharge end of the feeding pipe 12 is provided with an opening bag support structure 14. The opening bag support structure 14 includes two inclined support pieces set at an angle. The opening bag support structure 14 is used to open the bag body to facilitate subsequent horizontal sealing.

[0060] The collar forming device 13 is installed on the feed pipe 12 and located below the feed hopper 11. After passing through the collar forming device 13, the bag film can cover the feed pipe 12, thereby forming an enclosed bag structure, which facilitates subsequent longitudinal sealing.

[0061] As an optional implementation, the high-speed vertical vacuum film stretching continuous longitudinal sealing device includes a film feeding roller mechanism 5, which includes multiple parallel film feeding rollers. The bag film conveyed by the film feeding rollers can be wrapped onto the feed tube 12 by the collar forming device 13.

[0062] The film feeding roller mechanism 5 is used to transport the bag film.

[0063] As an optional implementation, the vacuum film stretching mechanism 2 includes a clamping drive assembly 22 and two vacuum film stretching assemblies 21 symmetrically arranged on both sides of the blanking and forming mechanism 1, with the two vacuum film stretching assemblies 21 connected to the clamping drive assembly 22.

[0064] During the longitudinal sealing process, the clamping drive assembly 22 is activated, driving the two vacuum film stretching assemblies 21 to move towards each other and clamp against both sides of the feed pipe 12, thereby adsorbing and conveying the bag.

[0065] As an optional implementation, the clamping drive assembly 22 includes a film stretching and telescopic assembly 221 and a horizontal guide assembly. The film stretching and telescopic assembly 221 is a pneumatic telescopic assembly, including a cylinder.

[0066] The number of membrane stretching components 221 is set to two, the two membrane stretching components 221 are arranged symmetrically, and the stretching ends of the two membrane stretching components 221 are respectively connected to the two vacuum membrane stretching components 21.

[0067] The telescopic component provides power for the opposite movement of the two vacuum film stretching components 21. The structure is simple and the action effect is significant.

[0068] The horizontal guide assembly includes a horizontal guide 222 and two sets of sliding members 223 slidably disposed on the horizontal guide 222. The horizontal guide 222 is configured as a slide rail and is fixedly disposed on the support mechanism 4. The sliding members 223 are configured as sliders. The two sets of sliding members 223 are respectively fixedly connected to two vacuum film stretching assemblies 21.

[0069] The horizontal guide component can effectively limit the movement trajectory of the vacuum film stretching component 21.

[0070] As an optional implementation, the vacuum film stretching assembly 21 includes a film stretching power assembly 211, a film stretching drive wheel 212, a film stretching driven wheel 213, a film stretching adsorption belt 214, a vacuum block 215, and a vacuum tube 216.

[0071] The membrane stretching power assembly 211 is an electric power assembly, including a servo motor. Its output end is connected to the membrane stretching drive wheel 212 and can drive the membrane stretching drive wheel 212 to rotate. The membrane stretching driven wheel 213 is connected to the membrane stretching drive wheel 212 through the membrane stretching adsorption belt 214. Adsorption grooves are evenly arranged on the membrane stretching adsorption belt 214. The vacuum block 215 is located inside the membrane stretching adsorption belt 214, and the adsorption port of the vacuum block 215 faces the membrane stretching adsorption belt 214. The vacuum block 215 is connected to the vacuum tube 216.

[0072] When the bag is being transported, the film-pulling power assembly 211 is started, driving the film-pulling drive wheel 212 to rotate. With the assistance of the film-pulling driven wheel 213, the film-pulling adsorption belt 214 rotates. At the same time, the vacuum tube 216 evacuates the vacuum block 215, creating a negative pressure in the adsorption groove of the film-pulling adsorption belt 214, thereby adsorbing the bag and causing it to move with the film-pulling adsorption belt 214, thus realizing the transport of the bag.

[0073] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0074] Furthermore, in the description of this application, the terms "multiple" and "several" mean at least two, such as two, three, etc., unless otherwise explicitly specified.

[0075] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "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 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0076] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-speed vertical vacuum film stretching and continuous longitudinal sealing device, characterized in that, It includes a feeding and forming mechanism, a vacuum film stretching mechanism, and a continuous longitudinal sealing mechanism, wherein: The feeding and forming mechanism is vertically arranged and is used for feeding items and forming bags; The vacuum film stretching mechanism is located to the side of the feeding and forming mechanism and is used for bag conveying; The continuous longitudinal sealing mechanism includes a longitudinal sealing support, a continuous longitudinal sealing assembly, and a distance adjustment assembly. The distance adjustment assembly is fixedly mounted on the longitudinal sealing support and connected to the continuous longitudinal sealing assembly. The distance adjustment assembly can adjust the distance between the continuous longitudinal sealing assembly and the material feeding and forming mechanism.

2. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 1, characterized in that, The distance adjustment assembly includes an adjustment screw and a sliding guide assembly, wherein the sliding guide assembly includes a sliding guide member and a slide rod, wherein: The sliding guide is fixedly mounted on the longitudinal sealing bracket, and the sliding guide has a threaded hole and a guide hole through it; The adjusting end of the adjusting screw is fixedly provided with a handle, and the connecting end of the adjusting screw passes through the threaded hole and is rotatably connected to the continuous longitudinal sealing assembly. The connecting end of the slide rod slides through the guide hole and is fixedly connected to the continuous longitudinal sealing assembly.

3. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 2, characterized in that, The continuous longitudinal sealing assembly includes a longitudinal sealing mounting assembly, a longitudinal sealing power assembly, a longitudinal sealing drive wheel, a longitudinal sealing driven wheel, a longitudinal sealing steel belt, a longitudinal sealing telescopic assembly, and a heating block, wherein: The connecting end of the slide bar is fixedly connected to the longitudinal sealing mounting assembly; The longitudinal sealing power assembly is fixedly mounted on the longitudinal sealing mounting assembly. The output end of the longitudinal sealing power assembly is connected to the longitudinal sealing drive wheel and can drive the longitudinal sealing drive wheel to rotate. The driven wheel of the longitudinal seal is rotatably mounted on the longitudinal seal mounting assembly and is connected to the driving wheel of the longitudinal seal via the longitudinal seal steel belt; The fixed end of the longitudinal sealing telescopic assembly is rotatably connected to the connecting end of the adjusting screw, and the telescopic end of the longitudinal sealing telescopic assembly is connected to the longitudinal sealing mounting assembly. The heating block is disposed inside the longitudinal sealing steel strip and slides in cooperation with the longitudinal sealing steel strip.

4. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 3, characterized in that, The continuous longitudinal sealing assembly further includes an elastic support assembly, which comprises a support shaft and a spring sheet, wherein: The spring clip is fixedly mounted on the longitudinal sealing assembly; The support shaft is fixedly mounted on the spring sheet and connected to the heating block.

5. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 1, characterized in that, The high-speed vertical vacuum film stretching continuous longitudinal sealing device includes a support mechanism, and the feeding and forming mechanism and the vacuum film stretching mechanism are both mounted on the support mechanism; The two ends of the longitudinal sealing bracket are rotatably connected to the support mechanism via quick-release pins.

6. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 1, characterized in that, The feeding and forming mechanism includes a feeding hopper, a feeding pipe, and a collar forming device, wherein: The feeding hopper is located at the top of the feeding pipe; The feeding pipe is set vertically, and the bottom discharge end of the feeding pipe is provided with an opening bag support structure; The collar forming device is mounted on the feed tube and located below the feed hopper.

7. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 6, characterized in that, The high-speed vertical vacuum film stretching and continuous longitudinal sealing device includes a film feeding roller mechanism, which includes multiple parallel film feeding rollers. The bag film conveyed by the film feeding rollers can be wrapped onto the feed tube by the collar forming device to form a bag body.

8. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 1, characterized in that, The vacuum film stretching mechanism includes a clamping drive assembly and two vacuum film stretching assemblies symmetrically arranged on both sides of the feeding and forming mechanism, wherein: The two vacuum film stretching assemblies are connected to the clamping drive assembly and can move towards each other under the drive of the clamping drive assembly to adsorb and transport the bag.

9. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 8, characterized in that, The clamping drive assembly includes a film stretching assembly and a horizontal guide assembly, wherein: The number of the film stretching and telescopic components is set to two, and the telescopic ends of the two film stretching and telescopic components are respectively connected to the two vacuum film stretching components; The horizontal guide assembly includes a horizontal guide member and two sets of sliding members slidably disposed on the horizontal guide member. The two sets of sliding members are respectively fixedly connected to the two vacuum film stretching assemblies.

10. The high-speed vertical vacuum film stretching continuous longitudinal sealing device according to claim 8, characterized in that, The vacuum film stretching assembly includes a film stretching power assembly, a film stretching drive wheel, a film stretching driven wheel, a film stretching adsorption belt, a vacuum block, and a vacuum tube, wherein: The output end of the film-stretching power assembly is connected to the film-stretching drive wheel and can drive the film-stretching drive wheel to rotate. The film-stretching driven wheel is connected to the film-stretching drive wheel through the film-stretching adsorption belt. The film-stretching adsorption belt is provided with adsorption grooves. The vacuum block is located inside the film-stretching adsorption belt, and the adsorption port of the vacuum block faces the film-stretching adsorption belt. The vacuum block is connected to the vacuum tube.

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