Inflatable air column coiled material and heat sealing equipment

Abstract

The invention belongs to the technical field of air column coiled materials, and discloses an inflatable air column coiled material and heat sealing equipment, the inflatable air column coiled material comprises an inflatable bag, the inflatable bag is formed by folding a whole plastic film and then conducting heat sealing, and a plurality of first heat sealing lines are formed on the side walls of the two sides of the inflatable bag in a heat sealing mode; second heat sealing lines perpendicular to the first heat sealing lines are formed on the side walls of the two sides of the inflatable bag in a heat sealing mode, the second heat sealing lines and the first heat sealing lines divide the interior of the inflatable bag into a plurality of air column cavities and air channels communicating with the air column cavities, and sealing mechanisms are arranged on the air channels of the inflatable bag. According to the inflatable bag, an existing structure is improved, after the inflatable bag is used, the sealing mechanism can be operated to release gas in the inflatable bag, the overall occupied space of the inflatable bag is reduced, the inflatable bag can be conveniently transported after being recycled, and in addition, the situation that the inflatable bag cannot be repeatedly used due to the fact that the inflatable bag is damaged due to extrusion and collision in the inflatable state is avoided.

Description

Technical Field

[0001] This invention relates to the field of air column roll technology, and particularly to an inflatable air column roll and heat sealing equipment. Background Technology

[0002] In the logistics and product packaging sector, inflatable air column rolls are widely used for protective packaging of fragile items, precision instruments, electronic products, and fresh food due to their advantages of cushioning, shock resistance, lightweight and environmental friendliness, and high degree of customization. Their core principle is to inflate the air column cavity within the roll to form an elastic buffer layer, effectively offsetting external forces such as impacts and compression during transportation and reducing the risk of product damage. With the advancement of "dual carbon" goals and the deepening popularization of the circular economy concept, the environmental requirements for materials in the logistics packaging industry have extended from "degradable" to "efficiently recyclable and reusable." As a mainstream protective material, air column rolls not only need to meet basic protective performance but also need to overcome pain points such as inconvenient recycling and difficulty in reuse, balancing recycling convenience, reusability, and the degree of automation in processing and production to achieve a closed loop of "use-recycling-secondary utilization."

[0003] Chinese utility model patent CN217919344U discloses an inflatable air column roll material comprising a roll body, wherein the roll body is provided with a first inflation channel, a second inflation channel, a first air column assembly, and a second air column assembly, the first air column assembly and the second air column assembly being independent of each other, and both the first inflation channel and the second inflation channel extending along the length direction of the roll body; the first air column assembly includes a plurality of first air columns arranged independently along the length direction of the roll body, and the plurality of first air columns communicating with the first inflation channel; the second air column assembly includes a plurality of second air columns arranged independently along the length direction of the roll body, and the plurality of second air columns communicating with the second inflation channel; the first inflation channel and the second inflation channel are respectively located at both ends of the width direction of the roll body; each inflation port of the first air column and each inflation port of the second air column are provided with a one-way valve; the first air column is connected to the first inflation channel through the air inlet of the corresponding one-way valve, and the second air column is connected to the second inflation channel through the air inlet of the corresponding one-way valve.

[0004] This technology uses a one-way air valve to achieve sealing after inflation, which can only achieve one-way gas injection and cannot actively expel the gas in the air column. After the air column roll is used up, the air column in the inflated state is huge, which not only occupies a lot of recycling and storage space, but also greatly increases the cost of recycling and transportation. In addition, the inflated air column is easily damaged by squeezing and collision, making it unusable. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an inflatable air column roll material and a heat sealing device.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an inflatable air column roll material and heat sealing equipment, comprising an inflatable bag, wherein the inflatable bag is formed by folding and heat sealing a single piece of plastic film, and the side walls on both sides of the inflatable bag are heat-sealed with a plurality of first heat sealing lines, and the side walls on both sides of the inflatable bag are heat-sealed with second heat sealing lines that are perpendicular to the plurality of first heat sealing lines, the second heat sealing lines and the plurality of first heat sealing lines divide the interior of the inflatable bag into a plurality of air column cavities and air passages that communicate with the plurality of air column cavities, and the air passages of the inflatable bag are provided with a sealing mechanism for injecting gas into the inflatable bag with an air supply gun and keeping the inflatable bag in a sealed state, and the sealing mechanism is also used to discharge the gas inside the inflatable bag.

[0007] By adopting the above technical solution, the air gun or inflation device is operated to inject air into the inflatable bag through the sealing mechanism. The gas first enters the air passage of the inflatable bag and then flows into multiple air column chambers. The pressure inside the multiple air column chambers and air passages increases and expands. At this time, the inflatable bag can be used to wrap and protect the items. After use, the sealing mechanism is operated to release the gas in the inflatable bag, reducing the overall space occupied by the inflatable bag, which facilitates the transportation of the inflatable bag after recycling. In addition, it also avoids the situation where the inflatable bag cannot be reused due to damage caused by squeezing or collision while inflated.

[0008] Furthermore, the air passage of the inflatable bag is a hollow structure with openings at both ends. The sealing mechanism includes a sealing component, which includes an injection block disposed inside one end of the air passage and heat-sealed and fixed between it and the inflatable bag, a sealing block disposed inside the other end of the air passage and heat-sealed and fixed between it and the inflatable bag, and an injection pipe disposed on the injection block. The side wall of the injection block near the outside of the inflatable bag has an installation groove for inserting the injection pipe, and the side wall of the injection block near the air passage of the inflatable bag has an air inlet hole communicating with the installation groove. The side wall of the injection pipe has a through-hole for supplying air. The sealing mechanism also includes a reset component for driving the injection pipe to reset.

[0009] By adopting the above technical solution, the air gun's outlet face is first brought into contact with the air injection tube's end face, and the air injection tube is squeezed towards the inside of the inflation bag until the air delivery hole moves to the position corresponding to the air inlet hole. At this time, the gas in the air gun is discharged from the air injection tube into the air delivery hole, then from the air delivery hole into the air inlet hole, and finally from the air inlet hole into the inflation bag's air passage, thus realizing the inflation operation of the inflation bag. After the operation is completed, the air gun's outlet face is moved away from the inside of the inflation bag, and the reset component drives the air injection tube to reset and move. Finally, the air delivery hole moves away from the air inlet hole, and the gas in the inflation bag cannot be discharged through the mounting groove, thus achieving the sealing operation of the inflation bag.

[0010] Furthermore, the injection block is provided with an installation cavity communicating with the installation groove. The reset assembly includes a connecting block rotatably mounted on the air injection pipe and coaxially arranged with the air injection pipe, a limiting post fixed on the connecting block and located in the installation cavity, and a spring fixed between the connecting block and the inner wall of the installation cavity. The limiting post penetrates the inner wall of the installation cavity and slides with the installation cavity.

[0011] By adopting the above technical solution, when the air injection tube moves toward the direction closer to the air bag, it drives the connecting block connected to the air injection tube and the limiting post fixed to the connecting block to move. The spring is stressed and gradually contracts. After the air injection tube is released, the spring gradually extends and returns to its original position, thereby driving the connecting block connected to the spring, the limiting post fixed to the connecting block, and the air injection tube connected to the connecting block to move and return to their original position, thus realizing the automatic reset operation of the air injection tube.

[0012] Furthermore, an annular groove is provided on the side wall of the air injection tube at the position corresponding to the upper end of the air inlet hole. An annular spring block with an internal hollow structure is fixed in the annular groove. An air injection hole is provided through the side wall of the annular spring block. A notch is provided at the end of the air injection tube away from the air bag.

[0013] By adopting the above technical solution, after the air bag is fully inflated and the air injection tube is reset, rotating the air injection tube prevents the air outlet hole from aligning with the air inlet hole after the air injection tube is subjected to force and movement. This helps reduce the probability of gas escaping from the air outlet hole due to misoperation. Furthermore, after the air injection tube is reset and rotated, aligning the air injection hole with the air inlet hole, the gas in the air inlet hole will be discharged through the air injection hole into the annular spring block. The annular spring block expands under force and fits more precisely against the inner wall of the mounting groove, which helps improve the sealing effect between the air injection tube and the mounting groove. Especially during transportation, when the air bag is subjected to external force, the pressure inside the air inlet hole increases, causing the internal pressure of the annular spring block to also increase, further enhancing the sealing effect between the air injection tube and the mounting groove.

[0014] Furthermore, two L-shaped limiting strips are fixed on the injection block, and a limiting groove is provided on the side wall of the sealing block to be inserted into the limiting strips.

[0015] By adopting the above technical solution, when the inflatable bag wraps the item, the limiting strip can be inserted and connected to the limiting groove, which helps to reduce the probability of air leakage inside the inflatable bag due to external pressure on the inflation tube during transportation.

[0016] This application also discloses a heat-sealing device for inflatable air column rolls, including a heat-sealing mechanism, a limiting mechanism, and a cutting assembly. The heat-sealing mechanism includes a heat-sealing assembly, which includes a processing table set on the processing site, a lower heating plate fixed on the horizontal section below the processing table, an upper heating plate set above the lower heating plate, and two threaded columns fixed to the top of the upper heating plate. Heating wires are provided in both the lower heating plate and the upper heating plate. The heat-sealing mechanism also includes a lifting assembly for driving the threaded columns to rise and fall.

[0017] By adopting the above technical solution, firstly, the lifting assembly is operated to drive the threaded column to rise, which in turn drives the upper heating plate connected to the threaded column to rise. Then, a piece of plastic film is folded in half and placed on the top of the lower heating plate, and the injection block and sealing block are placed in their respective positions. Subsequently, the lifting assembly is operated to drive the threaded column to descend until the bottom of the upper heating plate is in close contact with the film. At this time, the power supply to the heating wires on the lower heating plate and the upper heating plate is turned on. The upper heating plate and the lower heating plate heat-seal the film, the injection block and the sealing block, thereby completing the heat sealing of a single air column roll.

[0018] Furthermore, the lifting assembly includes a drive housing fixed to the upper horizontal section of the machining table, two internally threaded tubes that both penetrate the upper horizontal section of the machining table and are rotatably connected to the machining table, two worm gears respectively fixedly sleeved on the two internally threaded tubes, a worm rotatably installed in the drive housing and meshing with the two worm gears, and a lifting motor fixed to the drive housing and driving the worm to rotate. The internally threaded tubes are threadedly connected to the threaded column, and the upper end of the internally threaded tubes penetrates the top of the drive housing and is rotatably connected to the drive housing.

[0019] By adopting the above technical solution, after the lifting motor works, it drives the worm to rotate, which in turn drives the worm wheel meshing with the worm and the internal threaded tube fixed to the worm wheel to rotate. Since the threaded column is threadedly connected to the internal threaded tube, the threaded column and the upper heating plate fixed to the threaded column can be raised and lowered, thereby ensuring normal heat sealing work.

[0020] Furthermore, the limiting mechanism includes a limiting component, which includes two mounting shells disposed on the processing table, two limiting rollers respectively rotatably mounted on the two mounting shells, an annular frame fixed on the lower mounting shell, and a rack fixed inside the annular frame. The annular frame passes through the upper mounting shell and slides in cooperation with it. The upper mounting shell is fixed on the processing table, and the lower mounting shell is slidably disposed on the processing table. A conveying motor for driving the corresponding limiting roller to rotate is fixed on one of the mounting shells. The limiting mechanism also includes an adjustment component for driving the rack to rise and fall.

[0021] By adopting the above technical solution, the folded film is passed between two limiting rollers, and then the conveyor motor drives the corresponding limiting roller to rotate, which can drive the folded film to be continuously transported, thereby realizing automatic feeding of heat sealing work.

[0022] Furthermore, the adjustment assembly includes a mounting bracket fixed to the upper mounting shell, a drive rod rotatably mounted on the mounting bracket, a gear fixedly sleeved on the drive rod and meshing with a rack, and an adjustment motor fixed to the mounting bracket and driving the drive rod to rotate.

[0023] By adopting the above technical solution, when the motor is working, it drives the drive rod to rotate, which in turn drives the gear fixed to the drive rod to rotate synchronously. Since the gear meshes with the rack, the rack, the ring frame fixed to the rack, the mounting shell fixed to the ring frame on the lower side, and the limiting roller connected to the mounting shell on the lower side can all be raised and lowered, thereby changing the distance between the two limiting rollers. On the one hand, this facilitates the passage of the film after the initial folding, and on the other hand, it adapts to the conveying of films of various thicknesses after folding.

[0024] Furthermore, the cutting assembly includes two hydraulic push rods fixed to the mounting bracket and a cutting blade fixed to the push rod end of the hydraulic push rod. The top of the upper mounting shell has a cutting through hole for the cutting part of the cutting blade to pass through, and the cutting through hole extends to the side wall of the upper mounting shell near the processing table.

[0025] By adopting the above technical solution, the hydraulic push rod extends and retracts at its end during operation, thereby driving the cutting blade fixed to the end of the hydraulic push rod to rise and fall, which can cut the two sections of film before and after heat sealing, so that the device can continue to process.

[0026] In summary, the present invention has the following beneficial effects: In this application, by improving the existing structure, the gas inside the air bag can be released by operating the sealing mechanism after use, which reduces the overall space occupied by the air bag, so as to facilitate the transportation of the air bag after recycling. In addition, it also avoids the situation where the air bag cannot be reused due to damage caused by squeezing and collision when it is inflated. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 Another perspective is shown in the diagram highlighting the connection structure between the sealing block and the inflatable bag.

[0029] Figure 3 This is a schematic diagram illustrating the connection structure between the gas injection tube and the injection block in an embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the internal structure of the injection block;

[0031] Figure 5 This is a schematic diagram illustrating the connection structure between the gas injection pipe and the connecting block in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram illustrating the overall structure of the sealing block in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram illustrating the connection structure between the lower and upper heating plates in an embodiment of the present invention.

[0034] Figure 8 This is a cross-sectional schematic diagram showing the internal structure of the drive housing after the upper heating plate is raised.

[0035] Figure 9 This is a schematic diagram showing the connection structure between the mounting shell and the limiting roller after the upper heating plate is raised.

[0036] Figure 10 This is a schematic diagram illustrating the connection structure between the ring frame and the rack in an embodiment of the present invention.

[0037] In the diagram: 1. Inflatable bag; 2. First heat-sealing line; 3. Second heat-sealing line; 4. Sealing mechanism; 41. Sealing assembly; 411. Injection block; 412. Sealing block; 413. Injection pipe; 42. Reset assembly; 421. Connecting block; 422. Limiting post; 423. Spring; 5. Mounting groove; 6. Air inlet hole; 7. Air outlet hole; 8. Annular groove; 9. Annular spring block; 10. Injection hole; 11. Notch; 12. Restricting strip; 13. Restricting groove; 14. Heat-sealing mechanism; 141. Heat-sealing assembly; 1411. Processing table; 1412. Lower heating plate; 14 13. Upper heating plate; 1414. Threaded column; 142. Lifting assembly; 1421. Drive housing; 1422. Internally threaded tube; 1423. Worm gear; 1424. Worm; 1425. Lifting motor; 15. Limiting mechanism; 151. Limiting assembly; 1511. Mounting housing; 1512. Limiting roller; 1513. Ring frame; 1514. Rack; 152. Adjusting assembly; 1521. Mounting bracket; 1522. Drive rod; 1523. Gear; 1524. Adjusting motor; 16. Cutting assembly; 161. Hydraulic push rod; 162. Cutting blade. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] like Figure 1-6 As shown in the illustration, this application discloses an inflatable air column roll material and a heat-sealing device, including an inflatable bag 1 and a sealing mechanism 4. The inflatable bag 1 is formed by folding and heat-sealing a single piece of plastic film. Multiple first heat-sealing lines 2 are heat-sealed on the side walls of both sides of the inflatable bag 1, and second heat-sealing lines 3 are heat-sealed on the side walls of both sides of the inflatable bag 1, each perpendicular to the multiple first heat-sealing lines 2. The second heat-sealing lines 3 and the multiple first heat-sealing lines 2 divide the interior of the inflatable bag 1 into multiple air column cavities and air channels communicating with each of the multiple air column cavities. The air channels of the inflatable bag 1 are hollow structures with openings at both ends. Operate the air gun or inflation device to inject air into the inflation bag 1 through the sealing mechanism 4. The gas first enters the air passage of the inflation bag 1, and then flows from the air passage to multiple air column chambers. The pressure inside the multiple air column chambers and air passages increases and expands. At this time, the inflation bag 1 can be used to wrap and protect the items. After use, operate the sealing mechanism 4 to release the gas in the inflation bag 1, reducing the overall space occupied by the inflation bag 1, so as to facilitate the transportation of the inflation bag 1 after recycling.

[0040] A sealing mechanism 4 is disposed on the air passage of the inflatable bag 1. The sealing mechanism 4 is used to inject gas into the inflatable bag 1 through the air supply gun and maintain the inflatable bag 1 in a sealed state, as well as to discharge gas from the inflatable bag 1. The sealing mechanism 4 includes a sealing component 41 and a reset component 42. The sealing component 41 includes an injection block 411, a sealing block 412, and an air injection pipe 413. The side wall of the injection block 411 near the outside of the inflatable bag 1 has a mounting groove 5 for insertion into the air injection pipe 413. The side wall of the injection block 411 near the air passage of the inflatable bag 1 has an air inlet hole 6 communicating with the mounting groove 5. The injection block 411 has an installation cavity communicating with the mounting groove 5. The injection block 411 is disposed in one end of the air passage of the inflatable bag 1 and is heat-sealed and fixed between the injection block 411 and the inflatable bag 1. The sealing block 412 is disposed in the other end of the air passage of the inflatable bag 1 and is heat-sealed and fixed between the injection block 412 and the inflatable bag 1. The air injection tube 413 is mounted on the injection block 411, and an air delivery hole 7 is provided through its side wall. First, the air gun outlet face contacts the end face of the air injection tube 413, and the tube is squeezed towards the inside of the inflation bag 1 until the air delivery hole 7 moves to the position corresponding to the air inlet hole 6. At this point, the gas in the air gun is discharged from the air injection tube 413 into the air delivery hole 7, then from the air delivery hole 7 into the air inlet hole 6, and finally from the air inlet hole 6 into the air passage of the inflation bag 1, thus inflating the inflation bag 1. After the operation is completed, the air gun outlet face is moved away from the inside of the inflation bag 1. The reset assembly 42 drives the air injection tube 413 to reset and move, finally moving the air delivery hole 7 away from the air inlet hole 6. The gas in the inflation bag 1 cannot be discharged through the mounting groove 5, thus sealing the inside of the inflation bag 1.

[0041] The reset assembly 42 is used to drive the air injection tube 413 to reset. The reset assembly 42 includes a connecting block 421, a limiting post 422, and a spring 423. The connecting block 421 is rotatably mounted on the air injection tube 413 and coaxially arranged with the air injection tube 413. The limiting post 422 is fixed on the connecting block 421 and located within the mounting cavity. The limiting post 422 penetrates the inner wall of the mounting cavity and slides within the mounting cavity. The spring 423 is fixed between the connecting block 421 and the inner wall of the mounting cavity. When the air injection tube 413 moves toward the inside of the air bag 1, it causes the connecting block 421 connected to the air injection tube 413 and the limiting post 422 fixed to the connecting block 421 to move. The spring 423 is stressed and gradually contracts. After the air injection tube 413 is released, the spring 423 gradually extends and returns to its original position, thereby causing the connecting block 421 connected to the spring 423, the limiting post 422 fixed to the connecting block 421, and the air injection tube 413 connected to the connecting block 421 to move and return to its original position, thus realizing the automatic reset operation of the air injection tube 413.

[0042] An annular groove 8 is formed on the side wall of the air injection tube 413 at a position corresponding to the upper end of the air inlet 6. An annular spring block 9 with an internally hollow structure is fixed in the annular groove 8. An air injection hole 10 is provided through the side wall of the annular spring block 9. A notch 11 is formed at the end of the air injection tube 413 away from the air bag 1. After the air bag 1 is fully inflated and the air injection tube 413 is reset, rotating the air injection tube 413 causes it to move under force, preventing the air outlet 7 from aligning with the air inlet 6. This helps reduce the probability of gas being discharged from the air outlet 7 due to misoperation. Furthermore, after the air injection pipe 413 is reset and rotated, the air injection hole 10 is aligned with the air inlet hole 6. The gas in the air inlet hole 6 will be discharged from the air injection hole 10 into the annular spring block 9. The annular spring block 9 expands under force and fits more precisely with the inner wall of the mounting groove 5, which helps to improve the sealing effect between the air injection pipe 413 and the mounting groove 5. Especially during transportation, when the air bag 1 is subjected to external force, the pressure in the air inlet hole 6 increases, which also increases the internal pressure of the annular spring block 9, which helps to improve the sealing effect between the air injection pipe 413 and the mounting groove 5.

[0043] Two L-shaped limiting strips 12 are fixed on the injection block 411, and a limiting groove 13 is provided on the side wall of the sealing block 412 to be inserted into the limiting strips 12. When the air bag 1 wraps the item, the limiting strips 12 can be inserted into the limiting groove 13 to reduce the probability of air leakage inside the air bag 1 due to external pressure on the air injection pipe 413 during transportation.

[0044] like Figure 7-10 This application also discloses a heat-sealing device for inflatable air column rolls, including a heat-sealing mechanism 14, a limiting mechanism 15, and a cutting assembly 16. The heat-sealing mechanism 14 includes a heat-sealing assembly 141 and a lifting assembly 142. The heat-sealing assembly 141 includes a processing table 1411, a lower heating plate 1412, an upper heating plate 1413, and threaded posts 1414. The processing table 1411 is disposed on the processing site. The lower heating plate 1412 is fixed to the horizontal section below the processing table 1411. The upper heating plate 1413 is disposed above the lower heating plate 1412, and heating wires are provided in both the lower heating plate 1412 and the upper heating plate 1413. Two threaded posts 1414 are provided, and both threaded posts 1414 are fixed to the top of the upper heating plate 1413. First, the lifting assembly 142 is operated to drive the threaded column 1414 to rise, which in turn drives the upper heating plate 1413 connected to the threaded column 1414 to rise as well. Then, a piece of plastic film is folded in half and placed on top of the lower heating plate 1412, and the injection block 411 and the sealing block 412 are placed in their respective positions. Then, the lifting assembly 142 is operated to drive the threaded column 1414 to descend until the bottom of the upper heating plate 1413 is in close contact with the film. At this time, the power supply to the heating wires on the lower heating plate 1412 and the upper heating plate 1413 is turned on. The upper heating plate 1413 and the lower heating plate 1412 heat up and heat seal the film, the injection block 411 and the sealing block 412 to form a single air column roll heat seal.

[0045] The lifting assembly 142 is used to drive the threaded column 1414 to rise and fall. The lifting assembly 142 includes a drive housing 1421, an internally threaded tube 1422, a worm gear 1423, a worm 1424, and a lifting motor 1425. The drive housing 1421 is fixed to the horizontal section on the upper side of the processing table 1411. There are two internally threaded tubes 1422. The internally threaded tubes 1422 are threadedly connected to the threaded column 1414, and the upper end of the internally threaded tubes 1422 passes through the top of the drive housing 1421 and is rotatably connected to the drive housing 1421. Both internally threaded tubes 1422 pass through the horizontal section on the upper side of the processing table 1411 and are rotatably connected to the processing table 1411. There are two worm gears 1423. Two worm gears 1423 are fixedly sleeved on two internally threaded tubes 1422, respectively. The worm 1424 is rotatably installed in the drive housing 1421 and meshes with both worm gears 1423. The lifting motor 1425 is fixed on the drive housing 1421 and drives the worm 1424 to rotate. After the lifting motor 1425 works, it drives the worm 1424 to rotate, which in turn drives the worm gears 1423 meshing with the worm 1424 and the internally threaded tubes 1422 fixed to the worm gears 1423 to rotate. Since the threaded post 1414 is threadedly connected to the internally threaded tubes 1422, the threaded post 1414 and the upper heating plate 1413 fixed to the threaded post 1414 can be raised and lowered, thereby ensuring normal heat sealing operation.

[0046] The limiting mechanism 15 includes a limiting component 151 and an adjusting component 152. The limiting component 151 includes a mounting shell 1511, a limiting roller 1512, an annular frame 1513, and a rack 1514. Two mounting shells 1511 are provided, both mounted on a processing table 1411. The upper mounting shell 1511 is fixed to the processing table 1411, and the lower mounting shell 1511 is slidably mounted on the processing table 1411. A conveyor motor that drives the corresponding limiting roller 1512 to rotate is fixed on one of the mounting shells 1511. Two limiting rollers 1512 are provided, rotatably mounted on the two mounting shells 1511 respectively. The annular frame 1513 is fixed to the lower mounting shell 1511, passes through the upper mounting shell 1511, and slides in cooperation with the mounting shell 1511. The rack 1514 is fixed inside the annular frame 1513. After the folded film is passed between the two limiting rollers 1512, the conveyor motor drives the corresponding limiting roller 1512 to rotate, which in turn drives the folded film to be continuously transported, thereby realizing the automatic feeding of the heat sealing process.

[0047] The adjusting assembly 152 is used to drive the rack 1514 to rise and fall. The adjusting assembly 152 includes a mounting bracket 1521, a drive rod 1522, a gear 1523, and an adjusting motor 1524. The mounting bracket 1521 is fixed to the upper mounting shell 1511, and the drive rod 1522 is rotatably mounted on the mounting bracket 1521. The gear 1523 is fixedly sleeved on the drive rod 1522 and meshes with the rack 1514. The adjusting motor 1524 is fixed to the mounting bracket 1521 and drives the drive rod 1522 to rotate. When the adjusting motor 1524 is working, it drives the drive rod 1522 to rotate, which in turn drives the gear 1523 fixed to the drive rod 1522 to rotate synchronously. Since the gear 1523 meshes with the rack 1514, the rack 1514, the ring frame 1513 fixed to the rack 1514, the mounting shell 1511 fixed to the ring frame 1513 on the lower side, and the limiting roller 1512 connected to the lower mounting shell 1511 can all be raised and lowered, thereby changing the distance between the two limiting rollers 1512. This facilitates the passage of the film after initial folding and adapts to the conveying of films of various thicknesses after folding.

[0048] The cutting assembly 16 includes two hydraulic push rods 161 and a cutting blade 162. The two hydraulic push rods 161 are fixed to the mounting bracket 1521, and the cutting blade 162 is fixed to the push rod end of the hydraulic push rods 161. A cutting through hole is provided at the top of the upper mounting housing 1511 for the cutting part of the cutting blade 162 to pass through, extending to the side wall of the upper mounting housing 1511 near the processing table 1411. When the hydraulic push rods 161 are working, their push rod ends extend and retract, thereby driving the cutting blade 162, which is fixed to the push rod end of the hydraulic push rod 161, to rise and fall. This allows for the cutting of the two sections of film before and after heat sealing, enabling continuous processing by the device.

[0049] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An inflatable air column roll material, characterized in that: The air bag (1) includes an air bag (1), on which the side walls on both sides are heat-sealed with a plurality of first heat-sealing lines (2) and on which the side walls on both sides are heat-sealed with a second heat-sealing line (3). The second heat-sealing line (3) and the plurality of first heat-sealing lines (2) divide the air bag (1) into a plurality of air column cavities and an air passage that is connected to the plurality of air column cavities. The air passage of the air bag (1) is provided with a sealing mechanism (4) for injecting gas into the air bag (1) with an air supply gun and keeping the air bag (1) in a sealed state. The sealing mechanism (4) is also used to discharge the gas inside the air bag (1).

2. The inflatable air column roll material according to claim 1, characterized in that: The air passage of the inflatable bag (1) is a hollow structure with openings at both ends. The sealing mechanism (4) includes a sealing component (41). The sealing component (41) includes an injection block (411) disposed in one end of the air passage of the inflatable bag (1) and heat-sealed between the inflatable bag (1) and the bag, a sealing block (412) disposed in the other end of the air passage of the inflatable bag (1) and heat-sealed between the inflatable bag (1) and the bag, and an air injection pipe (413) disposed on the injection block (411). The injection block (411) has an installation groove (5) on the side wall near the outside of the inflation bag (1) for inserting into the air injection pipe (413). The injection block (411) has an air inlet hole (6) on the side wall near the air passage of the inflation bag (1) for communicating with the installation groove (5). The air injection pipe (413) has a through air supply hole (7). The sealing mechanism (4) also includes a reset component (42) for driving the air injection pipe (413) to reset.

3. The inflatable air column roll material according to claim 2, characterized in that: The injection block (411) is provided with an installation cavity communicating with the installation groove (5). The reset assembly (42) includes a connecting block (421) rotatably mounted on the air injection pipe (413) and coaxially arranged with the air injection pipe (413), a limiting post (422) fixed on the connecting block (421) and located in the installation cavity, and a spring (423) fixed between the connecting block (421) and the inner wall of the installation cavity. The limiting post (422) penetrates the inner wall of the installation cavity and slides with the installation cavity.

4. The inflatable air column roll material according to claim 2, characterized in that: An annular groove (8) is provided on the side wall of the air injection pipe (413) at the position corresponding to the upper end of the air inlet hole (6). An annular spring block (9) with an internal hollow structure is fixed in the annular groove (8). An air injection hole (10) is provided through the side wall of the annular spring block (9). A notch (11) is provided at one end of the air injection pipe (413) away from the air bag (1).

5. The inflatable air column roll material according to claim 2, characterized in that: The injection block (411) is fixed with two L-shaped limiting strips (12), and the side wall of the sealing block (412) is provided with a limiting groove (13) that is inserted into the limiting strips (12).

6. A heat-sealing device for an inflatable air column roll material according to any one of claims 1-5, characterized in that: The device includes a heat sealing mechanism (14), a limiting mechanism (15), and a cutting assembly (16). The heat sealing mechanism (14) includes a heat sealing assembly (141), which includes a processing table (1411) set on the processing site, a lower heating plate (1412) fixed on the lower horizontal section of the processing table (1411), an upper heating plate (1413) set above the lower heating plate (1412), and two threaded columns (1414) both fixed to the top of the upper heating plate (1413). The heat sealing mechanism (14) also includes a lifting assembly (142) for driving the threaded columns (1414) to rise and fall.

7. The heat-sealing equipment for an inflatable air column roll material according to claim 6, characterized in that: The lifting assembly (142) includes a drive housing (1421) fixed to the upper horizontal section of the processing table (1411), two internally threaded tubes (1422) that both pass through the upper horizontal section of the processing table (1411) and are rotatably connected to the processing table (1411), two worm gears (1423) respectively fixedly sleeved on the two internally threaded tubes (1422), a worm (1424) rotatably installed in the drive housing (1421) and meshing with the two worm gears (1423), and a lifting motor (1425) fixed to the drive housing (1421) and driving the worm (1424) to rotate. The internally threaded tubes (1422) are threadedly connected to the threaded column (1414), and the upper end of the internally threaded tubes (1422) passes through the top of the drive housing (1421) and is rotatably connected to the drive housing (1421).

8. The heat-sealing equipment for an inflatable air column roll material according to claim 6, characterized in that: The limiting mechanism (15) includes a limiting component (151), which includes two mounting shells (1511) disposed on the processing table (1411), two limiting rollers (1512) respectively rotatably mounted on the two mounting shells (1511), an annular frame (1513) fixed on the lower mounting shell (1511), and a rack (1514) fixed in the annular frame (1513). The annular frame (1513) extends through the upper side. Mounting housing (1511) and slidingly engaging with mounting housing (1511). The upper mounting housing (1511) is fixed on the processing table (1411), and the lower mounting housing (1511) is slidably disposed on the processing table (1411). One of the mounting housings (1511) is fixed with a conveying motor that drives the corresponding limiting roller (1512) to rotate. The limiting mechanism (15) also includes an adjusting component (152) for driving the rack (1514) to rise and fall.

9. The heat-sealing equipment for an inflatable air column roll material according to claim 8, characterized in that: The adjustment assembly (152) includes a mounting bracket (1521) fixed on the upper mounting shell (1511), a drive rod (1522) rotatably mounted on the mounting bracket (1521), a gear (1523) fixedly sleeved on the drive rod (1522) and meshing with a rack (1514), and an adjustment motor (1524) fixed on the mounting bracket (1521) and driving the drive rod (1522) to rotate.

10. The heat-sealing equipment for an inflatable air column roll material according to claim 8, characterized in that: The cutting assembly (16) includes two hydraulic push rods (161) fixed on the mounting bracket (1521) and a cutting blade (162) fixed on the end of the push rod of the hydraulic push rod (161). The top of the upper mounting shell (1511) is provided with a cutting through hole for the cutting part of the cutting blade (162) to pass through.

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