Automatic heat sealing processing line

Abstract

The utility model relates to an automatic heat sealing processing line. The feeding mechanism is used for feeding an outer packaging film, the scribing mechanism is used for folding and pre-scribing the outer packaging film, and the cutting and conveying mechanism is used for cutting and conveying the inner air column film and placing the inner air column film on the outer packaging film. The first heat sealing mechanism is used for carrying out heat sealing and fixing on the inner air column film and the outer packaging film to form a laminated film; the folding mechanism is used for folding after the inner air column film and the outer packaging film are subjected to heat sealing; the second heat sealing mechanism is used for carrying out heat sealing and fixing on the laminated film; the feeding mechanism, the marking mechanism, the first heat sealing mechanism, the folding mechanism and the second heat sealing mechanism are sequentially arranged, and the cutting and conveying mechanism is arranged on the side edge of the first base. According to the air column film cutting and feeding device, air column films needing to be stacked on other films can be automatically cut and fed, stacking, heat sealing, folding and heat sealing forming of the films are smoother, the working efficiency is improved, and high efficiency and rapidness are achieved.

Description

Technical Field

[0001] This utility model relates to an automatic heat sealing processing line. Background Technology

[0002] Air column bags, also known as cushioning air column bags or inflatable bags, are a new type of packaging material that uses natural air for filling. Designed to provide comprehensive cushioning and shockproof protection to reduce product damage during transportation, air column bags are made of a special airtight membrane filled with air to form a series of air columns, similar to an inflatable cushion. When a package is placed inside the bag, it is inflated through an inflation valve, causing the air columns to expand and form a protective layer around the package, effectively cushioning and absorbing external impacts and preventing damage during transportation.

[0003] When air column bags are used to wrap and transport items, they need to have an inner air column film and an outer opaque packaging film. These air column bags are formed by overlapping and heat-sealing the air column film and the outer packaging film, then folding them simultaneously and heat-sealing them. However, in the current processing, the air column film needs to be cut into sections and placed on the outer packaging film manually. Since all the stacking is done manually, the efficiency is low. Utility Model Content

[0004] The purpose of this invention is to provide an automatic heat-sealing processing line that can automatically cut and feed air column films that need to be stacked on other films, making the stacking, heat sealing, folding, and heat-sealing of films smoother, speeding up work efficiency, and making it more efficient and faster.

[0005] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a feeding mechanism for feeding the outer packaging film, a marking mechanism for folding and pre-marking the outer packaging film, a cutting and feeding mechanism for cutting and feeding the inner air column film and placing the inner air column film onto the outer packaging film, a first heat sealing mechanism for heat sealing and fixing the inner air column film and the outer packaging film to form a laminated film, a folding mechanism for folding the inner air column film and the outer packaging film after heat sealing, and a second heat sealing mechanism for heat sealing and fixing the laminated film. The feeding mechanism, marking mechanism, first heat sealing mechanism, folding mechanism, and second heat sealing mechanism are arranged in sequence.

[0006] The first heat-sealing mechanism includes a first base, a pressure roller rotatably mounted on the first base for flattening the outer packaging film, and a first heat-sealing assembly fixedly mounted on the first base for heat-sealing the inner air column film and the outer packaging film. The first base includes an inlet and an outlet. Two pressure rollers are provided and rotatably mounted at the inlet and outlet of the first base, respectively. The first heat-sealing assembly includes a heat-sealing gantry symmetrically arranged on both sides of the first base for the inner air column film to pass through, a sliding rod fixedly mounted between the heat-sealing gantry, a pressing and fixing block fixedly mounted on the sliding rod, a first heat-sealing cylinder fixedly mounted on the pressing and fixing block, and a heat-sealing plate fixedly mounted on the drive end of the first heat-sealing cylinder for heat-sealing the inner air column film and the outer packaging film. The first heat-sealing block is fixedly mounted on the side of the heat-sealing plate facing the first base. The cutting and feeding mechanism is located on the side of the first base.

[0007] Furthermore, the cutting and feeding mechanism includes a cutting frame on the left side of the first base and a pulling frame on the right side of the first base. The cutting frame and the pulling frame are arranged correspondingly. The cutting frame has a feeding end located away from the first base and a discharging end located close to the first base. The pulling frame has a waiting end located away from the first base and a pulling end located close to the first base.

[0008] The feeding end of the cutting frame is fixedly equipped with a winding frame for winding the inner air column film, and the discharge end of the cutting frame is fixedly equipped with a cutting frame for cutting the inner air column film. Multiple sets of feeding frames are fixedly arranged between the winding frame and the cutting frame, extending from the loading end of the cutting frame towards the discharge end of the cutting frame and used to drive the inner air column film to move. The winding frame includes winding supports fixedly mounted on both sides of the cutting frame and winding rollers rotatably mounted on the corresponding winding supports at both ends. The feeding frame includes two feeding supports symmetrically mounted on both sides of the cutting frame and a first feeding roller and a second feeding roller rotatably mounted on the two feeding supports at both ends and arranged vertically. The first feeding roller is located above the second feeding roller, and a feeding channel for the inner air column film to pass through is formed between the first feeding roller and the second feeding roller. The channel and feeding rack also include a feeding drive device for driving the first feeding roller and the second feeding roller to rotate; the cutting rack includes a cutting gantry frame fixedly mounted on the cutting machine frame, a cutter with both ends slidably mounted on both sides of the cutting gantry frame and slidable toward the cutting machine frame, and a cutting drive device fixedly mounted on the cutting gantry frame and used to drive the cutter to slide. The cutting gantry frame has sliding grooves on both sides for the cutter to slide inwards. The cutter is slidably mounted on the cutting gantry frame by slidingly engaging with the sliding grooves. The cutting drive device is fixedly mounted at the upper end of the cutting gantry frame. The driving end of the cutting drive device is fixedly connected to the upper end of the cutter. The cutter is slidably mounted on the cutting gantry frame by driving with the cutting drive device and slidingly engaging with the sliding grooves. The cutting machine frame has a cutting groove corresponding to the cutter and capable of forming an insertion engagement with the cutter.

[0009] The material pulling frame is provided with a sliding groove extending from the material receiving end toward the material pulling end. A sliding block is slidably arranged in the sliding groove, and a material pulling base block is fixedly arranged on the sliding block. The material pulling base block is slidably arranged on the material pulling frame through the sliding engagement of the sliding block and the sliding groove. A material pulling drive device is fixedly arranged at the material pulling end of the material pulling frame. A one-way screw extending toward the material receiving end of the material pulling drive device is fixedly connected to the drive end of the material pulling drive device. The material pulling base block is provided with a threaded hole that can form a threaded engagement with the one-way screw. The material pulling base block is slidably arranged on the material pulling frame through the drive of the material pulling drive device, the threaded engagement of the one-way screw and the threaded hole, and the sliding engagement of the sliding block and the sliding groove. The material pulling base block is provided with two extension arms, one end of which is fixedly arranged on the material pulling base block and the other end of which extends toward the cutting frame and can drive the pneumatic gripper through the heat sealing gantry. The two extension arms are symmetrically arranged on the left and right. A pneumatic gripper is fixedly arranged on the end of the extension arm that extends toward the cutting frame. The gripping end of the pneumatic gripper is arranged on the same horizontal line as the feeding channel.

[0010] One end of the first feeding roller and the second feeding roller, which are in the same direction, passes through the feeding bracket that is rotatably mounted thereon. A first driven gear is fixedly mounted on the end of the first feeding roller and the second feeding roller that passes through the feeding bracket. The first driven gear on the first feeding roller and the first driven gear on the second feeding roller can form a meshing engagement. A first driving gear that can mesh with the first driven gear is fixedly mounted on the drive end of the feeding drive device. The first feeding roller and the second feeding roller feed the air column film toward the cutting frame through the drive end of the feeding drive device, the meshing transmission of the first driving gear and the first driven gear, and the meshing engagement of the two first driven gears.

[0011] Furthermore, the cutter is positioned on the side of the cutting gantry near the discharge end of the cutting machine frame, and a lifting block is fixedly installed on the side of the cutting gantry near the feeding end of the cutting machine frame. The lower end of the lifting block is fixedly installed on the cutting support, and both ends of the lifting block are fixedly installed on the inner walls of both sides of the cutting gantry. A support clamping block is fixedly installed directly above the lifting block, and both ends of the support clamping block are fixedly installed on the inner walls of both sides of the cutting gantry. A clamping channel is formed between the support clamping block and the lifting block, allowing the inner air column film to pass through and guiding the horizontal movement of the inner air column film. The feeding channel and the inner air column film are set on the same horizontal line. The film moves horizontally through the clamping channel and the feeding channel, which are set on the same horizontal line. When the sliding block slides to the end of the sliding groove facing the end of the material to be fed, the end of the extension arm that is fixedly connected to the pneumatic gripper moves to the inside of the cutting gantry, and the clamping end of the pneumatic gripper corresponds to the clamping channel. When the sliding block slides to the end of the sliding groove facing the end of the material to be pulled, the end of the extension arm that is fixedly connected to the pneumatic gripper moves to the end of the material pulling frame facing the first base, and the clamping end of the pneumatic gripper reaches the edge of the first base.

[0012] Furthermore, the cutting gantry is also equipped with an adsorption assembly for adsorbing and lifting the inner air column film passing through the clamping channel. The adsorption assembly includes an air extractor fixedly installed on the cutting gantry, a main pipe fixedly connected to the air extraction end of the air extractor, and a multi-port pipe fixedly connected to the main pipe. The multi-port pipe has multiple air extraction ports, each air extraction port is located between the cutting groove and the lifting block, and each air extraction port is evenly arranged along the extension direction of the lifting block. Each air extraction port is arranged from the left to the right side of the inner air column film.

[0013] Furthermore, the marking mechanism includes a second base, a marking support plate, a first guide roller, a second guide roller, a rotating rod, a sliding rod, a first pressure roller, and a second pressure roller. The second base has a feeding end facing the feeding mechanism and a discharging end facing the first heat sealing mechanism. Marking support plates are fixedly provided on both sides of the second base, and the marking support plates fixedly provided on both sides of the second base are arranged opposite to each other. The first guide roller, the second guide roller, and the rotating rod are all rotatably mounted on the marking support plates on both sides of the second base. The first guide roller is located on the side of the marking support plate facing the feeding end of the second base, and the second guide roller is located on the side of the marking support plate facing the discharging end of the second base. The rotating rod is located on the upper side of the first guide roller. The first pressure roller is fixedly mounted on the rotating rod. Two sliding rods are provided, symmetrically fixed above the second guide roller, with both ends of the sliding rods fixedly mounted on the marking support plates on both sides of the second base. A first slider and a second slider, slidably mounted on the two sliding rods and arranged opposite each other, are also provided. A lifting drive device is fixedly mounted on both the first and second sliders. A fixed block extending along the extension direction of the sliding rod is fixedly mounted on the lifting end of the lifting drive device. The second pressure roller is rotatably mounted on the fixed block of the lifting drive device located on the first slider, and the second pressure roller rotatably mounted on the fixed block of the lifting drive device located on the second slider is arranged opposite to the second pressure roller rotatably mounted on the fixed block of the lifting drive device located on the second slider.

[0014] Furthermore, both the first and second sliders are fixedly provided with screw holes, and a bidirectional lead screw is also provided, which can simultaneously form a threaded engagement with the screw holes on the first and second sliders. The two ends of the bidirectional lead screw are respectively rotatably mounted on the scribing support plates on both sides of the second base. The scribing support plate is set at one end of the bidirectional lead screw rotatably mounted on the scribing support plate. A drive disk for driving the bidirectional lead screw to rotate is fixed at one end of the scribing support plate at the extension of the bidirectional lead screw. The first and second sliders slide towards each other or backwards through the drive of the drive disk and the threaded engagement between the bidirectional lead screw and the screw holes. The distance between the second pressure roller on the fixed block of the lifting drive device of the first slider and the second pressure roller rotatably mounted on the fixed block of the lifting drive device located on the second slider is adjusted by the relative sliding of the first and second sliders towards each other or backwards.

[0015] Furthermore, the folding mechanism includes a third base, a first reversing roller, a second reversing roller, a third reversing roller, a folding plate, and a folding wheel. The third base has a proximal end located near the first heat sealing mechanism, a folding end located away from the first heat sealing mechanism, and a discharge end located near the second heat sealing mechanism.

[0016] A folding bracket is symmetrically fixed at the folding end of the third base. The two ends of the first reversing roller are rotatably set at the upper end of the folding bracket on the symmetrical side. The folding plate is fixed in the middle of the folding bracket. The folding plate has a long side and a short side. The long side of the folding plate is fixed in the middle of the folding bracket. The short side of the folding plate extends toward the end of the third base. Folding edges for connecting the long side and the short side are provided on both sides of the folding plate. The folding plate edges extend from the long side to the short side.

[0017] The third base is also provided with two first reversing support plates. The two first reversing support plates are arranged symmetrically at the near end and the folding end. There are two second reversing rollers, which are arranged horizontally and symmetrically. The two ends of the second reversing rollers are respectively fixed on the two symmetrically arranged first reversing support plates. A reversing channel is formed between the symmetrically arranged second reversing rollers, which allows the stacked film to pass through and is used to change the direction of the folded stacked film toward the discharge end. The reversing channel is located directly below the short side.

[0018] The third base is symmetrically provided with folded support plates near its end. A connecting rod is fixedly connected between the symmetrically provided folded support plates. The folded wheel is fixedly provided on the connecting rod. The folded wheel is located directly above the middle of the short side and is used to fold the laminated film out of the support part.

[0019] The discharge end of the third base is symmetrically provided with a second reversing support plate, and the two ends of the third reversing roller are respectively fixedly provided on the symmetrically provided second reversing support plate and are used to reversing the direction of the laminated film toward the second heat sealing mechanism.

[0020] Furthermore, the second heat-sealing mechanism includes a fourth base, a transmission assembly, and a plurality of second heat-sealing assemblies evenly arranged along the extension direction of the fourth base. The fourth base includes a feeding end located near the folding mechanism and a feeding end located away from the folding mechanism for feeding the laminated film into the next process.

[0021] The transmission assembly includes a transmission support plate, transmission rollers, and a transmission drive device fixedly mounted on a fourth base for driving the transmission rollers to rotate. Two transmission support plates are symmetrically fixed at the loading and unloading ends of the fourth base. Two transmission rollers are rotatably mounted between the symmetrically mounted transmission support plates, forming a transmission channel between them for the stacked films to pass through. One end of each of the two transmission rollers, facing the same direction, passes through the rotatably mounted transmission support plate. A second driven gear is fixedly mounted on one end of each of the two transmission rollers, passing through the rotatably mounted feeding bracket. The second driven gears on the two transmission rollers can mesh with each other. A second driving gear, capable of meshing with the second driven gear, is fixedly mounted on the drive end of the transmission drive device. The two transmission rollers rotate toward the transmission channel through the drive of the drive end of the transmission drive device, the meshing transmission of the first driving gear and the second driven gear, and the meshing of the two second driven gears.

[0022] The second heat-sealing assembly includes a heat-sealing support plate, a support platform, a mounting platform, a second heat-sealing block, and a second heat-sealing cylinder. Two heat-sealing support plates are provided, each positioned on the left and right sides of the fourth substrate, and are symmetrically arranged. The two ends of the support platform are fixedly mounted on the two heat-sealing support plates, with the upper end of the support platform aligned with the conveying channel at the same horizontal level. The two ends of the mounting platform are fixedly mounted on the two heat-sealing support plates, and the mounting platform is located directly above the support platform. A heat-sealing channel is formed between the support platform and the mounting platform, allowing the folded, laminated film to pass through and be heat-sealed. The second heat-sealing cylinder is fixedly mounted on the mounting platform, and a horizontally positioned heat-sealing mounting plate is fixedly mounted on the driving end of the second heat-sealing cylinder. The second heat-sealing block is fixedly mounted on the side of the heat-sealing mounting plate facing the support platform.

[0023] Furthermore, the second heat-sealing blocks in each of the second heat-sealing components have different shapes and temperatures.

[0024] Furthermore, the feeding mechanism includes a fifth base, feeding support plates, feeding rollers, and a feeding drive device. Two feeding support plates are symmetrically fixed to the fifth base. The two ends of the feeding roller are rotatably mounted on the two feeding support plates. The feeding drive device is fixedly mounted on one of the feeding support plates. One end of the feeding roller passes through the rotatably mounted feeding support plate. A third driven gear is fixedly mounted on the end of the feeding roller that passes through the rotatably mounted feeding support plate. A third driving gear, capable of meshing with the third driven gear, is fixedly mounted on the driving end of the feeding drive device. The feeding roller is rotatably mounted on the two feeding support plates through the drive of the feeding drive device and the meshing of the third driving gear and the third driven gear.

[0025] This utility model has the following positive effects: (1) This utility model has a feeding mechanism for feeding the outer packaging film, a marking mechanism for folding and pre-marking the outer packaging film, a cutting and feeding mechanism for cutting and feeding the inner air column film and placing the inner air column film on the outer packaging film, a first heat sealing mechanism for heat sealing and fixing the inner air column film and the outer packaging film to form a laminated film, a folding mechanism for folding the inner air column film and the outer packaging film after heat sealing, and a second heat sealing mechanism for heat sealing and fixing the laminated film. The inner air column film, including the marking mechanism, the first heat sealing mechanism, the folding mechanism, and the second heat sealing mechanism, is arranged in sequence. The inner air column film is placed in segments on the outer packaging film by the cutting and feeding mechanism, which replaces manual cutting and feeding. It works in conjunction with the feeding mechanism, the marking mechanism, the first heat sealing mechanism, the folding mechanism, and the second heat sealing mechanism to make the stacking and heat sealing steps smoother and more convenient. At the same time, there is no need for manual cutting and feeding of the inner air column film. The air column film that needs to be stacked on other films is automatically cut and fed, which speeds up the work and is highly efficient and fast.

[0026] (2) The first heat-sealing mechanism of this utility model includes a first base, a pressure roller rotatably disposed on the first base for flattening the outer packaging film, and a first heat-sealing component fixedly disposed on the first base for heat-sealing the inner air column film and the outer packaging film; the inner air column film and the outer packaging film are heat-sealed and fixed by the first heat-sealing component to ensure that the inner air column film and the outer packaging film will not separate during movement and folding, and to ensure the smooth progress of the overall heat-sealing process.

[0027] (3) The cutting and feeding mechanism of this utility model includes a cutting frame on the left side of the first base and a pulling frame on the right side of the first base. A winding frame for winding the inner air column film is fixed on the feeding end of the cutting frame. A cutting frame for cutting the inner air column film is fixed on the discharge end of the cutting frame. Multiple sets of feeding frames are fixed between the winding frame and the cutting frame, which are evenly arranged from the feeding end of the cutting frame to the discharge end of the cutting frame and are used to drive the inner air column film to move. A pulling base block and a pneumatic gripper fixed on the pulling base block are slidably provided on the pulling frame. The inner air column film is divided into multiple segments by the cooperation of the winding frame, the feeding frame and the cutting frame. The pneumatic gripper can hold the divided inner air column film and pull the divided inner air column film onto the outer packaging film as the pulling base block slides, thereby replacing the cutting and feeding performed by humans, which is convenient and fast.

[0028] (4) The cutting gantry of this utility model is also provided with an adsorption component for adsorbing and pulling the inner air column film passing through the clamping channel. The adsorption component includes an air pump fixedly installed on the cutting gantry, a main pipe fixedly connected to the air pumping end of the air pump, and a multi-port pipe fixedly connected to the main pipe. The multi-port pipe is set towards the inner air column film and the air pumping can adsorb and pull the cut inner air column film to a position that the pneumatic clamp can hold, ensuring that the inner air column film can be accurately pulled onto the outer packaging film.

[0029] (5) The folding mechanism of this utility model includes a third base, a first reversing roller, a second reversing roller, a third reversing roller, a folding plate, and a folding wheel. A folding bracket is symmetrically fixed at the folding end of the third base. The two ends of the first reversing roller are rotatably set at the upper end of the folding bracket on the symmetrical side. The folding plate is fixedly set in the middle of the folding bracket. The folding plate has a long side and a short side. The long side of the folding plate is fixedly set in the middle of the folding bracket. The short side of the folding plate extends toward the end of the third base. Folding edges for connecting the long side and the short side are provided on both sides of the folding plate. The folding edge extends from the long side to the short side. The folding plate folds the laminated film, which makes it easier for the laminated film to be heat-sealed into a cylinder after entering the second heat-sealing mechanism, avoiding subsequent manual folding, which is efficient and convenient.

[0030] (6) The second heat-sealing mechanism of this utility model includes a fourth base, a transmission component, and a plurality of second heat-sealing components evenly arranged along the extension direction of the fourth base. The transmission component includes a transmission support plate, a transmission roller, and a transmission drive device fixedly mounted on the fourth base for driving the transmission roller to rotate. There are two transmission rollers, and the two transmission rollers are rotatably arranged between the symmetrically arranged transmission support plates. The two transmission rollers are symmetrically arranged vertically, and a transmission channel for the stacked film to pass through is formed between the two transmission rollers. The second heat-sealing component includes a heat-sealing support plate, a support platform, a mounting platform, a second heat-sealing block, and a second heat-sealing cylinder. The two transmission rollers are symmetrically arranged vertically and vertically, and the transmission drive device drives the outer packaging film and the inner air column film to move, so that the outer packaging film and the inner air column film can automatically move on the feeding mechanism, the marking mechanism, the first heat-sealing mechanism, the folding mechanism, and the second heat-sealing mechanism. Attached Figure Description

[0031] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is a top view illustrating the overall structure of this utility model;

[0034] Figure 3 This is a schematic diagram of the cutting and feeding mechanism of this utility model;

[0035] Figure 4 This is a schematic diagram of the first heat-sealing mechanism of this utility model;

[0036] Figure 5 This is a schematic diagram of the folding mechanism of this utility model;

[0037] Figure 6 This is a schematic diagram of the broken line mechanism of this utility model;

[0038] Figure 7 This is a schematic diagram of the second heat-sealing mechanism of this utility model;

[0039] Figure 8 This is a schematic diagram of the structure of the second heat-sealing component of this utility model;

[0040] Figure 9 for Figure 3 A magnified view of part A in the image.

[0041] In this diagram, the components are: feeding mechanism: 1, fifth base: 11, feeding support plate: 12, feeding roller: 13, feeding drive device: 14, marking mechanism: 2, second base: 21, marking support plate: 22, first guide roller: 23, second guide roller: 24, rotating rod: 25, sliding rod: 26, first slider: 261, second slider: 262, first pressure roller: 27, second pressure roller: 28, double-acting screw: 29, cutting and feeding mechanism: 3, cutting frame: 31, winding frame: 311, winding bracket: 3111, winding roller: 3112, cutting frame: 312, cutting gantry frame: 3121, lifting block: 31211, support clamping block: 31212, cutting... Knife: 3122, Cutting drive device: 3123, Feeding rack: 313, Feeding bracket: 3131, First feeding roller: 3132, Second feeding roller: 3133, Feeding drive device: 3134, Pulling frame: 32, Sliding groove: 321, Pulling base block: 322, One-way lead screw: 3221, Extension arm: 3222, Pneumatic gripper: 3223, Pulling drive device: 323, First heat sealing mechanism: 4, First base: 41, Pressure roller: 42, First heat sealing assembly: 43, Heat sealing gantry frame 431, Sliding rod; 432, Pressing and fixing block; 433, First heat sealing cylinder; 434, Heat sealing plate; 435, First heat sealing block; 436, Folding mechanism; 5, Third base; 51, First reversing roller; 52, Second reversing roller; 53, Third reversing roller; 54, Folding plate; 55, Bending wheel; 56, First reversing support plate; 57, Bending support plate; 58, Second reversing support plate; 59, Second heat sealing mechanism; 6, Fourth base; 61, Transmission assembly; 62, Transmission support plate; 621 , transmission roller: 622, transmission drive device: 623, second heat sealing component: 63, heat sealing support plate: 631, support platform: 632, mounting platform: 633, second heat sealing block: 634, second heat sealing cylinder: 635, adsorption component: 7, air pump: 71, main pipe: 72, multi-port pipe: 73, first driven gear: a1, first driving gear: a2, second driven gear: b1, second driving gear: b2, second driven gear: c1, second driving gear: c2, lifting drive device: d. Detailed Implementation

[0042] See Figures 1 to 9This utility model includes a feeding mechanism 1 for feeding the outer packaging film, a marking mechanism 2 for folding and pre-marking the outer packaging film, a cutting and feeding mechanism 3 for cutting and feeding the inner air column film and placing the inner air column film onto the outer packaging film, a first heat sealing mechanism 4 for heat sealing the inner air column film and the outer packaging film to form a laminated film, a folding mechanism 5 for folding the inner air column film and the outer packaging film after heat sealing, and a second heat sealing mechanism 6 for heat sealing the laminated film. The feeding mechanism 1, the marking mechanism 2, the first heat sealing mechanism 4, the folding mechanism 5, and the second heat sealing mechanism 6 are arranged in sequence.

[0043] The first heat-sealing mechanism 4 includes a first base 41, a pressure roller 42 rotatably mounted on the first base 41 for flattening the outer packaging film, and a first heat-sealing assembly 43 fixedly mounted on the first base 41 for heat-sealing the inner air column film and the outer packaging film. The first base 41 includes an inlet end and an outlet end. Two pressure rollers 42 are provided and rotatably mounted at the inlet end and outlet end of the first base 41, respectively. The first heat-sealing assembly 43 includes a heat-sealing gantry symmetrically arranged on both sides of the first base 41 and allowing the inner air column film to pass through. The system includes a frame 431, a sliding rod 432 fixedly disposed between the heat-sealing gantry frames 431, a pressing and fixing block 433 fixedly disposed on the sliding rod 432, a first heat-sealing cylinder 434 fixedly disposed on the pressing and fixing block 433, and a heat-sealing plate 435 fixedly disposed on the drive end of the first heat-sealing cylinder 434 and capable of heat-sealing the inner air column film and the outer packaging film. A first heat-sealing block 436 is fixedly disposed on the side of the heat-sealing plate 435 facing the first base 41. The cutting and feeding mechanism 3 is disposed on the side of the first base 41.

[0044] The cutting and feeding mechanism 3 includes a cutting frame 31 on the left side of the first base 41 and a pulling frame 32 on the right side of the first base 41. The cutting frame 31 and the pulling frame 32 are arranged correspondingly. The cutting frame 31 has a feeding end that is away from the first base 41 and a discharging end that is close to the first base 41. The pulling frame 32 has a waiting end that is away from the first base 41 and a pulling end that is close to the first base 41.

[0045] The feeding end of the cutting frame 31 is fixedly provided with a winding frame 311 for winding the inner air column film, and the discharge end of the cutting frame 31 is fixedly provided with a cutting frame 312 for cutting the inner air column film. Multiple sets of feeding frames 313 are fixedly provided between the winding frame 311 and the cutting frame 312, extending from the feeding end of the cutting frame 31 towards the discharge end of the cutting frame 31 and evenly arranged to drive the inner air column film to move. The winding frame 311 includes winding supports 3111 fixedly mounted on both sides of the cutting frame 31 and two ends rotatably mounted on the inner air column film. The feeding frame 313 includes two feeding supports 3131 symmetrically arranged on both sides of the cutting frame 3131, and a first feeding roller 3132 and a second feeding roller 3133 rotatably mounted on the two feeding supports 3131 at both ends and arranged vertically. The first feeding roller 3132 is located above the second feeding roller 3133, and a feeding channel for the inner air column film to pass through is formed between the first feeding roller 3132 and the second feeding roller 3133. The system includes a feeding drive device 3134 for driving the first feeding roller 3132 and the second feeding roller 3133 to rotate; the cutting frame 312 includes a cutting gantry frame 3121 fixedly mounted on the cutting machine frame 31, a cutter 3122 with both ends slidably mounted on both sides of the cutting gantry frame 3121 and slidable toward the cutting machine frame 31, and a cutting drive device 3123 fixedly mounted on the cutting gantry frame 3121 for driving the cutter 3122 to slide. The cutting gantry frame 3121 has two sides for the cutter 3122 to slide inwards. The cutting gantry 3122 is slidably mounted on the cutting gantry 3121 through a sliding engagement with the slid groove. The cutting drive device 3123 is fixedly mounted on the upper end of the cutting gantry 3121. The drive end of the cutting drive device 3123 is fixedly connected to the upper end of the cutting gantry 3122. The cutting gantry 3122 is slidably mounted on the cutting gantry 3121 through the drive of the cutting drive device 3123 and the sliding engagement with the slid groove. The cutting frame 31 is provided with a cutting groove corresponding to the cutting gantry 3122 and capable of forming an insertion engagement with the cutting gantry 3122.

[0046] A slider is slidably installed in the chute. The chute is set at the side of the slider facing the inside of the cutting gantry 3121. The slider has a screw hole on the side facing the feeding frame 313 or the pulling frame 32. A bolt that can form a threaded engagement with the screw hole is also provided. The middle part of the cutter 3122 has a through hole corresponding to the screw hole and allowing the bolt to pass through. The cutter 3122 is detachably fixed on the slider by the bolt passing through the through hole and the threaded engagement between the bolt and the screw hole.

[0047] The cutting drive device 3123 has a slot on its drive end for the upper end of the cutter 3122 to be engaged. The upper end of the cutter 3122 has a threaded hole corresponding to the through hole and a screw that can form a threaded engagement with the threaded hole. A through hole for the bolt to pass through is provided on the side wall of the slot. The upper end of the cutter 3122 is detachably fixed on the drive end of the cutting drive device 3123 by engaging with the slot and by the threaded engagement of the threaded hole with the bolt. The side of the slot opposite to the threaded hole is located on the same plane as the side of the slider with the threaded hole. The lower end of the cutter 3122 has a cutting edge that extends obliquely from one side of the cutter 3122 to the other side.

[0048] The material pulling frame 32 is provided with a sliding groove 321 extending from the material receiving end toward the material pulling end. A sliding block is slidably disposed in the sliding groove 321, and a material pulling base block 322 is fixedly disposed on the sliding block. The material pulling base block 322 is slidably disposed on the material pulling frame 32 through the sliding engagement of the sliding block and the sliding groove 321. A material pulling drive device 323 is fixedly disposed at the material pulling end of the material pulling frame 32. A one-way lead screw 3221 extending toward the material receiving end of the material pulling frame 32 is fixedly connected to the drive end of the material pulling drive device 323. The material pulling base block 322 is provided with a threaded hole that can form a threaded engagement with the one-way lead screw 3221. The material pulling base block 322 is provided with a threaded hole that can form a threaded engagement with the one-way lead screw 3221. The material pulling drive device 323, the one-way screw 3221 and the threaded hole are threaded together, and the sliding block and the sliding groove 321 are slidably arranged on the material pulling frame 32. The material pulling base block 322 is provided with two extension arms 3222, one end of which is fixed on the material pulling base block 322 and the other end extends toward the cutting frame 31 and can drive the pneumatic gripper 3223 through the heat sealing gantry frame 431. The two extension arms 3222 are symmetrically arranged on the left and right. The pneumatic gripper 3223 is fixed on the end of the extension arm 3222 that extends toward the cutting frame 31. The gripping end of the pneumatic gripper 3223 is arranged on the same horizontal line as the feeding channel.

[0049] One end of the first feeding roller 3132 and the second feeding roller 3133, which are in the same direction, passes through the feeding bracket 3131, which is rotatably mounted thereon. A first driven gear a1 is fixedly provided on the end of the first feeding roller 3132 and the second feeding roller 3133 that passes through the feeding bracket 3131. The first driven gear a1 on the first feeding roller 3132 and the first driven gear a1 on the second feeding roller 3133 can form a meshing engagement. A first driving gear a2 that can mesh with the first driven gear a1 is fixedly provided on the driving end of the feeding drive device 3134. The first feeding roller 3132 and the second feeding roller 3133 feed the air column film toward the cutting frame 312 through the driving end of the feeding drive device 3134, the meshing transmission of the first driving gear a2 and the first driven gear a1, and the meshing engagement of the two first driven gears a1.

[0050] The cutter 3122 is mounted on the side of the cutting gantry 3121 near the discharge end of the cutting machine frame 31. A lifting block 31211 is fixedly mounted on the side of the cutting gantry 3121 near the feeding end of the cutting machine frame 31. The lower end of the lifting block 31211 is fixedly mounted on the cutting support, and both ends of the lifting block 31211 are fixedly mounted on the inner walls of both sides of the cutting gantry 3121. A support clamp 31212 is fixedly mounted directly above the lifting block 31211. Both ends of the support clamp 31212 are fixedly mounted on the inner walls of both sides of the cutting gantry 3121. A clamping mechanism is formed between the support clamp 31212 and the lifting block 31211, allowing the inner air column film to pass through and guiding its horizontal movement. The clamping channel and the feeding channel are set on the same horizontal line. The inner air column film moves horizontally through the clamping channel and the feeding channel. When the sliding block slides to the end of the sliding groove 321 facing the end to be fed, the end of the extension arm 3222 fixedly connected to the pneumatic gripper 3223 moves to the inside of the cutting gantry 3121, and the clamping end of the pneumatic gripper 3223 corresponds to the clamping channel. When the sliding block slides to the end of the sliding groove 321 facing the end to be pulled, the end of the extension arm 3222 fixedly connected to the pneumatic gripper 3223 moves to the end of the pulling frame 32 facing the first base 41, and the clamping end of the pneumatic gripper 3223 reaches the edge of the first base 41.

[0051] The cutting gantry 3121 is also equipped with an adsorption assembly 7 for adsorbing and lifting the inner air column film passing through the clamping channel. The adsorption assembly 7 includes an air extractor 71 fixedly installed on the cutting gantry 3121, a main pipe 72 fixedly connected to the air extraction end of the air extractor 71, and a multi-port pipe 73 fixedly connected to the main pipe 72. The multi-port pipe 73 has multiple air extraction ports, each air extraction port is located between the cutting groove and the lifting block 31211, and each air extraction port is evenly arranged along the extension direction of the lifting block 31211. Each air extraction port is arranged from the left to the right side of the inner air column film.

[0052] The marking mechanism 2 includes a second base 21, a marking support plate 22, a first guide roller 23, a second guide roller 24, a rotating rod 25, a sliding rod 26, a first pressure roller 27, and a second pressure roller 28. The second base 21 has a feeding end facing the feeding mechanism 1 and a discharging end facing the first heat sealing mechanism 4. Marking support plates 22 are fixedly mounted on both sides of the second base 21, and are arranged opposite to each other. The first guide roller 23, the second guide roller 24, and the rotating rod 25 are all rotatably mounted on the marking support plates 22 on both sides of the second base 21. The first guide roller 23 is located on the side of the marking support plate 22 facing the feeding end of the second base 21, and the second guide roller 24 is located on the side of the marking support plate 22 facing the discharging end of the second base 21. The rotating rod 25 is located on the side of the first guide roller 23 facing the feeding end of the second base 21. Above, the first pressure roller 27 is fixedly mounted on the rotating rod 25; there are two slide rods 26, which are symmetrically fixed above the second guide roller 24 and the two ends of the slide rods 26 are respectively fixed on the marking support plates 22 on both sides of the second base 21. There are also a first slider 261 and a second slider 262 that can be slidably mounted on the two slide rods 26 and are arranged opposite each other. A lifting drive device d is fixedly mounted on the first slider 261 and the second slider 262. A fixed block extending along the extension direction of the slide rod 26 is fixedly mounted on the lifting end of the lifting drive device d. The second pressure roller 28 is rotatably mounted on the fixed block of the lifting drive device d located on the first slider 261 and the second pressure roller 28 rotatably mounted on the fixed block of the lifting drive device d located on the second slider 262 are arranged opposite each other.

[0053] Both the first slider 261 and the second slider 262 are fixedly provided with screw holes. A bidirectional lead screw 29 is also provided, which can form a threaded engagement with the screw holes on the first slider 261 and the second slider 262. The two ends of the bidirectional lead screw 29 are respectively rotatably mounted on the scribing support plates 22 on both sides of the second base 21. One end of the bidirectional lead screw 29 is rotatably mounted on the scribing support plate 22. A drive disk for driving the bidirectional lead screw 29 to rotate is fixedly provided on one end of the scribing support plate 22 at the extension of the bidirectional lead screw 29. The first slider 261 and the second slider 262 slide towards each other or backwards through the drive of the drive disk and the threaded engagement between the bidirectional lead screw 29 and the screw holes. The distance between the second pressure roller 28 on the fixed block of the lifting drive device d of the first slider 261 and the second pressure roller 28 rotatably mounted on the fixed block of the lifting drive device d located on the second slider 262 is adjusted by the relative sliding of the first slider 261 and the second slider 262 towards each other or backwards.

[0054] The folding mechanism 5 includes a third base 51, a first reversing roller 52, a second reversing roller 53, a third reversing roller 54, a folding plate 55, and a folding wheel 56. The third base 51 has a proximal end located near the first heat sealing mechanism 4, a folding end located away from the first heat sealing mechanism 4, and a discharge end located near the second heat sealing mechanism 6.

[0055] A folding bracket is symmetrically fixed at the folding end of the third base 51. The two ends of the first reversing roller 52 are rotatably set at the upper end of the folding bracket on the symmetrical side. The folding plate 55 is fixedly set in the middle of the folding bracket. The folding plate 55 has a long side and a short side. The long side of the folding plate 55 is fixedly set in the middle of the folding bracket. The short side of the folding plate 55 extends toward the near end of the third base 51. Folding edges for connecting the long side and the short side are provided on both sides of the folding plate 55. The folding edges extend from the long side to the short side.

[0056] The third base 51 is also provided with two first reversing support plates 57. The two first reversing support plates 57 are arranged symmetrically at the near end and the folding end. There are two second reversing rollers 53, and the two second reversing rollers 53 are arranged horizontally and symmetrically. The two ends of the second reversing rollers 53 are respectively fixed on the two symmetrically arranged first reversing support plates 57. A reversing channel is formed between the symmetrically arranged second reversing rollers 53, which allows the stacked film to pass through and is used to change the direction of the folded stacked film toward the discharge end. The reversing channel is located directly below the short side.

[0057] The third base 51 is symmetrically provided with folded line support plates 58 near its end. A connecting rod is fixedly connected between the symmetrically provided folded line support plates 58. The folded line wheel 56 is fixedly provided on the connecting rod. The folded line wheel 56 is located directly above the middle of the short side and is used to fold the laminated film out of the support part.

[0058] The discharge end of the third base 51 is symmetrically provided with a second reversing support plate 59, and the two ends of the third reversing roller 54 are respectively fixed on the symmetrically provided second reversing support plate 59 and are used to reversing the direction of the laminated film toward the second heat sealing mechanism 6.

[0059] The second heat sealing mechanism 6 includes a fourth base 61, a transmission component 62, and a plurality of second heat sealing components 63 evenly arranged along the extension direction of the fourth base 61. The fourth base 61 includes a feeding end located near the folding mechanism 5 and a feeding end located away from the folding mechanism 5 for feeding the laminated film into the next process.

[0060] The transmission assembly 62 includes a transmission support plate 621, a transmission roller 622, and a transmission drive device 623 fixedly mounted on the fourth base 61 for driving the transmission roller 622 to rotate. Two transmission support plates 621 are provided and symmetrically fixedly mounted at the loading and unloading ends of the fourth base 61. Two transmission rollers 622 are provided and rotatably mounted between the symmetrically mounted transmission support plates 621. The two transmission rollers 622 are vertically symmetrically arranged, forming a transmission channel between them for the stacked films to pass through. The two transmission rollers 622 are in the same direction. One end of the transmission support plate 621 is rotatably mounted, and two transmission rollers 622 are fixedly mounted on one end of the feeding bracket 3131. The two transmission rollers 622 can mesh with each other. The drive end of the transmission drive device 623 is fixedly mounted with a second driven gear b2 that can mesh with the second driven gear b1. The two transmission rollers 622 rotate toward the transmission channel through the drive end of the transmission drive device 623, the meshing transmission of the first driven gear and the second driven gear b1, and the meshing of the two second driven gears b1.

[0061] The second heat-sealing component 63 includes a heat-sealing support plate 631, a support platform 632, a mounting platform 633, a second heat-sealing block 634, and a second heat-sealing cylinder 635. Two heat-sealing support plates 631 are provided, each positioned on the left and right sides of the fourth substrate, and are symmetrically arranged. The two ends of the support platform 632 are fixedly mounted on the two heat-sealing support plates 631, with the upper end of the support platform 632 aligned with the conveying channel at the same horizontal level. The two ends of the mounting platform 633 are fixedly mounted on the two heat-sealing support plates 631, and the mounting platform 633 is located directly above the support platform 632. A heat-sealing channel is formed between the support platform 632 and the mounting platform 633, allowing the folded, laminated film to pass through and be heat-sealed. The second heat-sealing cylinder 635 is fixedly mounted on the mounting platform 633. A horizontally arranged heat-sealing mounting plate is fixedly mounted on the driving end of the second heat-sealing cylinder 635. The second heat-sealing block 634 is fixedly mounted on the side of the heat-sealing mounting plate facing the support platform 632.

[0062] The second heat-sealing blocks 634 in each of the second heat-sealing components 63 have different shapes and temperatures.

[0063] The feeding mechanism 1 includes a fifth base 11, a feeding support plate 12, a feeding roller 13, and a feeding drive device 14. There are two feeding support plates 12, which are symmetrically fixed on the fifth base 11. The two ends of the feeding roller 13 are respectively rotatably mounted on the two feeding support plates 12. The feeding drive device 14 is fixedly mounted on one of the feeding support plates 12. One end of the feeding roller 13 passes through the rotatably mounted feeding support plate 12. A third driven gear c1 is fixedly mounted on the end of the feeding roller 13 that passes through the rotatably mounted feeding support plate 12. A third driving gear c2 that can mesh with the third driven gear c1 is fixedly mounted on the driving end of the feeding drive device 14. The feeding roller 13 is rotatably mounted on the two feeding support plates 12 by the drive of the feeding drive device 14 and the meshing of the third driving gear c2 and the third driven gear c1.

[0064] When the aforementioned feeding drive device 14 drives the inner air column film to feed, the feeding drive device 14 and the transmission drive device 623 stop operating simultaneously. After the inner air column film falls onto the outer packaging film, the feeding drive device 14 stops operating, and the feeding drive device 14 and the transmission drive device 623 operate simultaneously. Through the simultaneous operation of the feeding drive device 14 and the transmission drive device 623, the outer packaging film moves on the feeding mechanism 1, the marking mechanism 2, the first heat sealing mechanism 4, the folding mechanism 5, and the second heat sealing mechanism 6.

[0065] The working principle of this utility model is as follows: the outer packaging film is rolled on the feeding roller 13, and the outer packaging film is unwound by the feeding drive device 14. After unwinding, the outer packaging film enters the marking mechanism 2. The outer packaging film passes through the upper roller surface of the first guide roller 23 and the second guide roller 24 in sequence and is rolled by the first pressure roller 27 and the second pressure roller 28 to form a folding pre-mark line that is easy to fold later. After the folding pre-mark line is formed, the outer packaging film enters the first heat sealing mechanism 4.

[0066] In the first heat-sealing mechanism 4, the outer packaging film is tightly bonded to the upper surface of the first base 41 under the guidance of the pressure roller 42. At this time, the material pulling drive device 323 on the material pulling frame 32 drives the one-way lead screw 3221 to rotate, and the threaded engagement between the one-way lead screw 3221 and the threaded hole drives the material pulling block 322 to slide towards the first base 41. The extension arm 3222 on the material pulling block 322 drives the pneumatic gripper 3223 to move towards the clamping channel. The pneumatic gripper 3223 passes through... After the heat-sealed gantry frames 431 on both sides of the first base 41 enter the cutting gantry frame 3121, the cutting and clamping channels correspond to each other; the winding roller 3112 is wrapped with an inner air column film, and the feeding drive device 3134 drives the first feeding roller 3132 and the second feeding roller 3133 to rotate. The rotating first feeding roller 3132 and the second feeding roller 3133 drive the inner air column film to move towards the cutting frame 312. The inner air column film is moved by the first feeding roller 3132 and the second feeding roller 3133. Driven by the material, the material enters the clamping channel. At this time, the feeding drive device 3134 stops driving, the vacuum pump 71 performs vacuuming, and the inner air column film is adsorbed through the main pipe 72 fixedly connected to the vacuum end of the vacuum pump 71 and the multi-port pipe 73 fixedly connected to the main pipe 72. The pneumatic gripper 3223 clamps the inner air column film. After clamping, the feeding drive device 3134 continues to drive, and at the same time, the pulling drive device 323 drives the pulling base block. 322 slides toward the pulling end. When the inner air column film is pulled by the pneumatic gripper 3223 to a length that matches the width of the outer packaging film, the cutting drive device 3123 on the cutting gantry 3121 drives the cutter 3122 to cut the inner air column film. Then, the pneumatic gripper 3223 reaches the waiting end of the pulling frame 32 under the sliding of the pulling base block 322. The pneumatic gripper 3223 releases its grip on the inner air column film, causing the inner air column film to fall onto the outer packaging film.

[0067] The first heat-sealing cylinder 434 drives the heat-sealing plate 435 to slide toward the first base 41. The sliding heat-sealing plate 435 drives the first heat-sealing block 436 to heat-seal the outer packaging film and the inner air column film located on the first base 41. After the heat-sealing is completed, the first heat-sealing cylinder 434 drives the heat-sealing plate 435 to slide away from the first base 41, and the first heat-sealing block 436 disengages from the heat-sealing of the outer packaging film and the inner air column film.

[0068] After heat sealing, the outer packaging film and the inner air column film form a laminated film. The laminated film enters the folding mechanism 5. The laminated film is guided by the first reversing roller 52 to the folding plate 55. After being guided by the folding edge of the folding plate 55, the laminated film is folded together. The folded laminated film enters the reversing channel. The laminated film in the reversing channel moves towards the third reversing roller 54 under the action of the second reversing roller 53. The third reversing roller 54 transports the folded laminated film to the second heat sealing mechanism 6.

[0069] The transmission drive device 623 located at the feeding end of the fourth base 61 drives the transmission roller 622 to rotate. The transmission roller 622 at the feeding end of the fourth base 61 drives the folded laminated film to be conveyed toward the transmission roller 622 at the unloading end of the fourth base 61. During the conveying process, the folded laminated film passes through multiple second heat sealing components 63. The second heat sealing cylinder 635 in each second heat sealing component 63 drives the heat sealing mounting plate to move toward the fourth base 61. The moving heat sealing mounting plate drives the second heat sealing block 634 to perform heat sealing on different positions of the passing folded laminated film in stages, forming different heat sealing effects.

[0070] After passing through the second heat-sealing mechanism 6, the laminated film is transported by the drive roller 622 at the feeding end of the fourth base 61 for subsequent processes.

[0071] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic heat sealing processing line, characterized in that: The device has a feeding mechanism (1) for feeding the outer packaging film, a marking mechanism (2) for folding and pre-marking the outer packaging film, a cutting and feeding mechanism (3) for cutting and feeding the inner air column film and placing the inner air column film onto the outer packaging film, a first heat sealing mechanism (4) for heat sealing the inner air column film and the outer packaging film to form a laminated film, a folding mechanism (5) for folding the inner air column film and the outer packaging film after heat sealing, and a second heat sealing mechanism (6) for heat sealing the laminated film. The feeding mechanism (1), marking mechanism (2), first heat sealing mechanism (4), folding mechanism (5) and second heat sealing mechanism (6) are arranged in sequence. The first heat-sealing mechanism (4) includes a first base (41), a pressure roller (42) rotatably mounted on the first base (41) for flattening the outer packaging film, and a first heat-sealing assembly (43) fixedly mounted on the first base (41) for heat-sealing the inner air column film and the outer packaging film. The first base (41) includes an inlet end and an outlet end. Two pressure rollers (42) are provided and rotatably mounted on the inlet end and outlet end of the first base (41), respectively. The first heat-sealing assembly (43) includes a heat-sealing gantry (43) symmetrically mounted on both sides of the first base (41) and allowing the inner air column film to pass through. 31) A sliding rod (432) fixedly installed between the heat sealing gantry (431), a pressing and fixing block (433) fixedly installed on the sliding rod (432), a first heat sealing cylinder (434) fixedly installed on the pressing and fixing block (433), and a heat sealing plate (435) fixedly installed on the drive end of the first heat sealing cylinder (434) and capable of heat sealing the inner air column film and the outer packaging film. The first heat sealing block (436) is fixedly installed on the side of the heat sealing plate (435) facing the first base (41); the cutting and feeding mechanism (3) is located on the side of the first base (41).

2. The automatic heat sealing processing line according to claim 1, characterized in that: The cutting and feeding mechanism (3) includes a cutting frame (31) on the left side of the first base (41) and a pulling frame (32) on the right side of the first base (41). The cutting frame (31) and the pulling frame (32) are arranged correspondingly. The cutting frame (31) has a feeding end that is away from the first base (41) and a discharging end that is close to the first base (41). The pulling frame (32) has a waiting end that is away from the first base (41) and a pulling end that is close to the first base (41). The feeding end of the cutting frame (31) is fixedly provided with a winding frame (311) for winding the inner air column film, and the discharge end of the cutting frame (31) is fixedly provided with a cutting frame (312) for cutting the inner air column film. Multiple sets of feeding frames (313) are fixedly provided between the winding frame (311) and the cutting frame (312), arranged evenly from the feeding end of the cutting frame (31) towards the discharge end of the cutting frame (31) and used to drive the inner air column film to move. The winding frame (311) includes winding supports (3111) fixedly installed on both sides of the cutting frame (31) and two ends rotatably installed on corresponding sides. The winding roller (3112) on the winding support (3111) and the feeding frame (313) include two feeding supports (3131) respectively arranged symmetrically on both sides of the cutting frame (31) and a first feeding roller (3132) and a second feeding roller (3133) respectively rotatably mounted on the two feeding supports (3131) and arranged vertically. The first feeding roller (3132) is located above the second feeding roller (3133). A feeding channel for the inner air column film to pass through is formed between the first feeding roller (3132) and the second feeding roller (3133). The feeding frame (313) also includes a feeding mechanism for... A feeding drive device (3134) drives the first feeding roller (3132) and the second feeding roller (3133) to rotate; the cutting frame (312) includes a cutting gantry (3121) fixedly mounted on the cutting machine frame (31), a cutter (3122) with both ends slidably mounted on both sides of the cutting gantry (3121) and slidable toward the cutting machine frame (311), and a cutting drive device (3123) fixedly mounted on the cutting gantry (3121) and used to drive the cutter (3122) to slide. The cutting gantry (3121) has two sides for the cutter (3122) to slide inwards. The cutting blade (3122) is slidably mounted on the cutting gantry (3121) through a sliding fit with the slid groove. The cutting drive device (3123) is fixedly mounted on the upper end of the cutting gantry (3121). The drive end of the cutting drive device (3123) is fixedly connected to the upper end of the cutting blade (3122). The cutting blade (3122) is slidably mounted on the cutting gantry (3121) through the drive of the cutting drive device (3123) and the sliding fit with the slid groove. The cutting frame (31) is provided with a cutting groove corresponding to the cutting blade (3122) and capable of forming an insertion fit with the cutting blade (3122). The material pulling frame (32) is provided with a sliding groove (321) extending from the material receiving end toward the material pulling end. A sliding block is slidably provided in the sliding groove (321), and a material pulling base block (322) is fixedly provided on the sliding block. The material pulling base block (322) is slidably provided on the material pulling frame (32) through the sliding cooperation between the sliding block and the sliding groove (321). A material pulling drive device (323) is fixedly provided at the material pulling end of the material pulling frame (32). A one-way screw (3221) extending toward the material receiving end of the material pulling frame (32) is fixedly connected to the drive end of the material pulling drive device (323). The material pulling base block (322) is provided with a threaded hole that can form a threaded cooperation with the one-way screw (3221). The material pulling base block (322) is provided with a threaded hole that can form a threaded cooperation with the one-way screw (3221). The drive of the material pulling drive device (323), the threaded engagement of the one-way screw (3221) and the threaded hole, and the sliding engagement of the sliding block and the sliding groove (321) are slidably arranged on the material pulling frame (32); the material pulling base block (322) is provided with two extension arms (3222) with one end fixed on the material pulling base block (322) and the other end extending towards the cutting frame (31) and capable of driving the pneumatic gripper (3223) through the heat sealing gantry frame (431). The two extension arms (3222) are symmetrically arranged on the left and right. The pneumatic gripper (3223) is fixed on the end of the extension arm (3222) extending towards the cutting frame (31). The gripping end of the pneumatic gripper (3223) and the feeding channel are arranged on the same horizontal line. One end of the first feeding roller (3132) and the second feeding roller (3133) in the same direction passes through the feeding bracket (3131) which is rotatably mounted thereon. A first driven gear (a1) is fixedly provided on the end of the first feeding roller (3132) and the second feeding roller (3133) that passes through the feeding bracket (3131) which is rotatably mounted thereon. The first driven gear (a1) on the first feeding roller (3132) and the first driven gear (a1) on the second feeding roller (3133) can mesh. In a coordinated manner, the drive end of the feeding drive device (3134) is fixedly provided with a first drive gear (a2) that can mesh with the first driven gear (a1) for transmission. The first feeding roller (3132) and the second feeding roller (3133) feed the air column film toward the cutting frame (312) through the drive end of the feeding drive device (3134), the meshing transmission of the first drive gear (a2) and the first driven gear (a1), and the meshing cooperation of the two first driven gears (a1).

3. An automatic heat sealing processing line according to claim 2, characterized in that: The cutter (3122) is mounted on the side of the cutting gantry (3121) near the discharge end of the cutting machine frame (31). A lifting block (31211) is fixedly mounted on the side of the cutting gantry (3121) near the feeding end of the cutting machine frame (31). The lower end of the lifting block (31211) is fixedly mounted on the cutting support, and the two ends of the lifting block (31211) are respectively fixedly mounted on the inner walls of the two sides of the cutting gantry (3121). A support clamp (31212) is fixedly mounted directly above the lifting block (31211). The two ends of the support clamp (31212) are respectively fixedly mounted on the inner walls of the two sides of the cutting gantry (3121). A space is formed between the support clamp (31212) and the lifting block (31211) that allows the inner air column film to pass through and to move horizontally. The guiding clamping channel is set on the same horizontal line as the feeding channel. The inner air column film moves horizontally through the clamping channel and the feeding channel on the same horizontal line. When the sliding block slides to the end of the sliding groove (321) facing the end of the material to be fed, the end of the extension arm (3222) fixedly connected to the pneumatic gripper (3223) moves to the inside of the cutting gantry (3121), and the clamping end of the pneumatic gripper (3223) corresponds to the clamping channel. When the sliding block slides to the end of the sliding groove (321) facing the end of the material to be pulled, the end of the extension arm (3222) fixedly connected to the pneumatic gripper (3223) moves to the end of the material pulling frame (32) facing the first base (41), and the clamping end of the pneumatic gripper (3223) reaches the edge of the first base (41).

4. An automatic heat sealing processing line according to claim 3, characterized in that: The cutting gantry (3121) is also provided with an adsorption assembly (7) for adsorbing and lifting the inner air column film passing through the clamping channel. The adsorption assembly (7) includes an air extractor (71) fixedly installed on the cutting gantry (3121), a main pipe (72) fixedly connected to the air extraction end of the air extractor (71), and a multi-port pipe (73) fixedly connected to the main pipe (72). The multi-port pipe (73) has multiple air extraction ports. Each air extraction port is located between the cutting groove and the lifting block (31211) and is evenly arranged along the extension direction of the lifting block (31211). Each air extraction port is arranged from the left to the right side of the inner air column film.

5. An automatic heat sealing processing line according to claim 2, characterized in that: The marking mechanism (2) includes a second base (21), a marking support plate (22), a first guide roller (23), a second guide roller (24), a rotating rod (25), a sliding rod (26), a first pressure roller (27), and a second pressure roller (28). The second base (21) has a feeding end facing the feeding mechanism (1) and a discharging end facing the first heat sealing mechanism (4). The marking support plate (22) is fixedly provided on both sides of the second base (21). The marking support plates (22) are arranged opposite to each other; the first guide roller (23), the second guide roller (24) and the rotating rod (25) are respectively rotatably mounted on the marking support plates (22) on both sides of the second base (21). The first guide roller (23) is mounted on the side of the marking support plate (22) facing the feeding end of the second base (21), the second guide roller (24) is mounted on the side of the marking support plate (22) facing the unloading end of the second base (21), and the rotating rod (25) is mounted on the side of the first guide roller (23). Above the guide roller (23), the first pressure roller (27) is fixedly mounted on the rotating rod (25); there are two slide rods (26), which are symmetrically fixed above the second guide roller (24) and the two ends of the slide rods (26) are respectively fixed on the marking support plates (22) on both sides of the second base (21). There are also a first slider (261) and a second slider (262) that can be slidably mounted on the two slide rods (26) and are arranged opposite to each other. A lifting drive device (d) is fixedly mounted on both the first slider (261) and the second slider (262). A fixed block extending along the extension direction of the slide rod (26) is fixedly mounted on the lifting end of the lifting drive device (d). The second pressure roller (28) is rotatably mounted on the fixed block of the lifting drive device (d) located on the first slider (261). The second pressure roller (28) rotatably mounted on the fixed block of the lifting drive device (d) located on the second slider (262) is arranged opposite to the second pressure roller (28) rotatably mounted on the fixed block of the lifting drive device (d) located on the second slider (262).

6. An automatic heat sealing processing line according to claim 5, characterized in that: Both the first slider (261) and the second slider (262) are fixedly provided with screw holes, and a bidirectional lead screw (29) is also provided, which can form a threaded engagement with the screw holes on the first slider (261) and the second slider (262). The two ends of the bidirectional lead screw (29) are respectively rotatably mounted on the scribing support plates (22) on both sides of the second base (21). The bidirectional lead screw (29) is rotatably mounted on the scribing support plate (22) at one end of the scribing support plate (22). A drive for driving the bidirectional lead screw (29) is fixedly provided on one end of the scribing support plate (22). A drive disk that rotates toward the lead screw (29) allows the first slider (261) and the second slider (262) to slide in opposite directions or in opposite directions through the drive disk and the threaded engagement of the bidirectional lead screw (29) with the screw hole. The distance between the second pressure roller (28) on the fixed block of the lifting drive device (d) of the first slider (261) and the second pressure roller (28) rotatably mounted on the fixed block of the lifting drive device (d) located on the second slider (262) is adjusted by the opposite sliding or back-to-back sliding of the first slider (261) and the second slider (262).

7. An automatic heat sealing processing line according to claim 1, characterized in that: The folding mechanism (5) includes a third base (51), a first reversing roller (52), a second reversing roller (53), a third reversing roller (54), a folding plate (55), and a folding wheel (56). The third base (51) has a proximal end located near the first heat sealing mechanism (4), a folding end located away from the first heat sealing mechanism (4), and a discharge end located near the second heat sealing mechanism (6). A folding bracket is symmetrically fixed at the folding end of the third base (51). The two ends of the first reversing roller (52) are rotatably set at the upper end of the folding bracket on the symmetrical side. The folding plate (55) is fixed in the middle of the folding bracket. The folding plate (55) has a long side and a short side. The long side of the folding plate (55) is fixed in the middle of the folding bracket. The short side of the folding plate (55) extends toward the near end of the third base (51). Folding edges for connecting the long side and the short side are provided on both sides of the folding plate (55). The folding edges extend from the long side to the short side. The third base (51) is also provided with two first reversing support plates (57). The two first reversing support plates (57) are arranged symmetrically at the near end and the folding end. There are two second reversing rollers (53), and the two second reversing rollers (53) are arranged horizontally and symmetrically. The two ends of the second reversing rollers (53) are respectively fixed on the two symmetrically arranged first reversing support plates (57). A reversing channel is formed between the symmetrically arranged second reversing rollers (53) to allow the stacked film to pass through and to change the direction of the folded stacked film toward the discharge end. The reversing channel is located directly below the short side. The third base (51) is symmetrically provided with folded support plates (58) near its end. A connecting rod is fixedly connected between the symmetrically provided folded support plates (58). The folded wheel (56) is fixedly provided on the connecting rod. The folded wheel (56) is located directly above the middle of the short side and is used to fold the laminated film out of the support part. The discharge end of the third base (51) is symmetrically provided with a second reversing support plate (59), and the two ends of the third reversing roller (54) are respectively fixed on the symmetrically provided second reversing support plate (59) and used to reversing the direction of the laminated film toward the second heat sealing mechanism (6).

8. An automatic heat sealing processing line according to claim 1, characterized in that: The second heat sealing mechanism (6) includes a fourth base (61), a transmission assembly (62), and a plurality of second heat sealing assemblies (63) evenly arranged along the extension direction of the fourth base (61). The fourth base (61) includes a feeding end located near the folding mechanism (5) and a feeding end located away from the folding mechanism (5) for feeding the laminated film into the next process. The transmission assembly (62) includes a transmission support plate (621), a transmission roller (622), and a transmission drive device (623) fixedly mounted on the fourth base (61) for driving the transmission roller (622) to rotate. Two transmission support plates (621) are provided, and the two transmission support plates (621) are symmetrically fixedly mounted at the loading end and unloading end of the fourth base (61). Two transmission rollers (622) are provided, and the two transmission rollers (622) are rotatably mounted between the symmetrically mounted transmission support plates (621). The two transmission rollers (622) are symmetrically mounted vertically, forming a transmission channel between the two transmission rollers (622) for the stacked film to pass through. The two transmission rollers (622) are... One end of the transmission roller (622) passes through the transmission support plate (621) on which it is rotatably mounted. The two transmission rollers (622) pass through the feeding bracket (3131) on which they are rotatably mounted. The two driven gears (b1) on the two transmission rollers (622) can form a meshing engagement. The drive end of the transmission drive device (623) is fixed with a second driving gear (b2) that can mesh with the second driven gear (b1) for transmission. The two transmission rollers (622) rotate toward the transmission channel through the drive end of the transmission drive device (623), the meshing transmission of the first driving gear and the second driven gear (b1), and the meshing engagement of the two second driven gears (b1). The second heat-sealing assembly (63) includes a heat-sealing support plate (631), a support platform (632), a mounting platform (633), a second heat-sealing block (634), and a second heat-sealing cylinder (635). Two heat-sealing support plates (631) are provided, each positioned on the left and right sides of the fourth substrate. The two heat-sealing support plates (631) are symmetrically arranged. The two ends of the support platform (632) are fixedly mounted on the two heat-sealing support plates (631). The upper end of the support platform (632) is positioned at the same horizontal level as the conveying channel. The mounting platform (633)... The two ends are respectively fixed on two heat-sealing support plates (631) and the mounting platform (633) is located directly above the support platform (632). A heat-sealing channel is formed between the support platform (632) and the mounting platform (633) for the folded film to pass through and for heat sealing. The second heat-sealing cylinder (635) is fixed on the mounting platform (633). A horizontally arranged heat-sealing mounting plate is fixed on the driving end of the second heat-sealing cylinder (635). The second heat-sealing block (634) is fixed on the side of the heat-sealing mounting plate facing the support platform (632).

9. An automatic heat sealing processing line according to claim 8, characterized in that: The second heat-sealing blocks (634) in each of the second heat-sealing components (63) have different shapes and temperatures.

10. An automatic heat sealing processing line according to claim 1, characterized in that: The feeding mechanism (1) includes a fifth base (11), a feeding support plate (12), a feeding roller (13), and a feeding drive device (14). Two feeding support plates (12) are provided, symmetrically fixed on the fifth base (11). The two ends of the feeding roller (13) are respectively rotatably mounted on the two feeding support plates (12). The feeding drive device (14) is fixedly mounted on one of the feeding support plates (12). One end of the feeding roller (13) passes through the rotatably mounted support plate (12). The feeding support plate (12) is set up, and the feeding roller (13) passes through the feeding support plate (12) set up by rotating and is fixedly provided with a third driven gear (c1). The driving end of the feeding drive device (14) is fixedly provided with a third driving gear (c2) that can mesh with the third driven gear (c1). The feeding roller (13) is rotated on the two feeding support plates (12) by the driving of the feeding drive device (14) and the meshing of the third driving gear (c2) and the third driven gear (c1).

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