Multi-specification compatible automatic bagging packaging machine for meal covers of disposable meal boxes

Abstract

The invention relates to the technical field of lunch box cover packaging, in particular to a disposable lunch box cover multi-specification compatible automatic bagging packaging machine which comprises a carrying mechanism, a film feeding mechanism and a film sealing mechanism which are sequentially arranged. By arranging the carrying mechanism, the film feeding mechanism and the film sealing mechanism, automatic packaging of meal box covers can be achieved; in addition, the device can be in butt joint with an injection molding machine directly, manual transfer and adjustment operation is not needed, the workload of manual carrying, one-by-one adjustment and bagging packaging in the prior art is reduced, the use of various machine equipment with incompatible specifications is avoided, the bagging packaging efficiency is improved, and therefore the bagging packaging production period is shortened, and the production cost is reduced. And stable, reliable and rapid bagging packaging work is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of lunch box and meal cover packaging, and in particular to an automatic bagging packaging machine for disposable lunch boxes and meal covers that are compatible with multiple specifications. Background Art

[0002] Disposable lunch boxes and lids are widely used in the catering industry due to their convenience. In order to improve production efficiency and reduce costs, manufacturers usually use automated production lines for large-scale production. On automated production lines, lunch boxes and lids need to be sealed and packaged with packaging film after injection molding.

[0003] The bagging packaging of disposable lunch boxes and meal covers currently on the market mainly has the following problems: Traditional disposable lunch boxes and lids are usually packaged manually or with the assistance of semi-automatic mechanical equipment. This packaging method has poor quality consistency, and its efficiency is greatly affected by manual factors, making it difficult to ensure the consistency and stability of the packaging.

[0004] Although there are some automated packaging machines on the market, different machines or auxiliary jigs are often required to package disposable lunch boxes and lids of different specifications, which not only increases the equipment investment cost, but also reduces the flexibility and convenience of the production line. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art and to provide a disposable lunch box and lid compatible with multiple specifications of automatic bagging packaging machine.

[0006] The object of the present invention is achieved through the following technical solutions: an automatic bagging packaging machine for disposable lunch boxes and lids with multiple specifications, comprising a conveying mechanism, a film-loading mechanism and a film-sealing mechanism arranged in sequence; The conveying mechanism comprises a feed transmission component and a conveying frame; the conveying frame is provided with a conveying component; the conveying frame is provided with a transfer transmission component at the bottom of the conveying component; the transfer transmission component and the feed transmission component are both arranged in the transverse direction; The film loading mechanism comprises a frame; the frame is provided with a material roll placed in a transverse direction; the frame is provided with a left fixed seat and a right fixed seat arranged opposite to each other; the frame is provided with a transmission plate in a transverse direction; the transmission plate is provided with a feeding conveyor belt movably arranged in the transverse direction; the feeding conveyor belt is arranged at one end of the transfer transmission component; The frame is provided with a left fixed seat and a right fixed seat; the left fixed seat is provided with a left steering plate; the right fixed seat is provided with a right steering plate arranged opposite to the left steering plate; the left steering plate and the right steering plate are respectively arranged on both sides of the transmission plate; the frame is provided with a guide component between the material roll, the left steering plate and the right steering plate.

[0007] The present invention is further configured such that the transport assembly includes a transport seat movably arranged on a transport frame; the transport seat is provided with a rotating platform; the output end of the rotating platform is provided with a pneumatic clamp; the output end of the pneumatic clamp is provided with a first clamping plate and a second clamping plate arranged opposite to each other; the frame is provided with a transverse movement assembly for driving the transport seat to move transversely, a longitudinal movement assembly for driving the transport seat to move longitudinally, and a lifting assembly for driving the transport seat to move up and down; the transfer transmission assembly is arranged at the bottom of the first clamping plate and the second clamping plate.

[0008] The present invention is further configured such that the lifting assembly includes a moving seat and a lifting cylinder disposed on the moving seat; the output end of the lifting cylinder is connected to the transport seat; the lifting assembly also includes a lifting rail disposed along the height direction of the transport seat and a lifting slider disposed on the moving seat; the lifting slider is slidably disposed on the lifting rail; The longitudinal shift assembly includes a gantry, a longitudinal shift rack provided on the gantry along the longitudinal direction, a longitudinal shift motor provided on the moving seat, and a longitudinal shift gear provided on the output end of the longitudinal shift motor; the longitudinal shift gear is meshed with the longitudinal shift rack; the longitudinal shift assembly also includes a longitudinal shift rail provided on the gantry along the longitudinal direction and a longitudinal shift slider provided on the moving seat; the longitudinal shift slider is slidably provided on the longitudinal shift rail; The transverse movement component includes a transverse movement rack arranged on the transport frame along the transverse direction, a transverse movement motor arranged on the gantry, and a transverse movement gear arranged at the output end of the transverse movement motor; the transverse movement gear is meshed with the transverse movement rack; the transverse movement component also includes a transverse movement rail arranged on the transport frame along the transverse direction and a transverse movement slider arranged on the gantry; the transverse movement slider is slidably arranged on the transverse movement rail.

[0009] The present invention is further configured such that the transfer transmission component includes a transfer conveyor belt arranged at the bottom of the first clamp plate and the bottom of the second clamp plate and arranged along the transverse direction; the feed transmission component includes a feed rack, a lifting rack that is movable on the feed rack, and a feed conveyor belt arranged on the lifting rack along the transverse direction; the feed conveyor belt is arranged parallel to the transfer conveyor belt; the transfer conveyor belt is arranged between the feeding conveyor belt and the feeding conveyor belt; the handling component moves between the transfer conveyor belt and the feeding conveyor belt.

[0010] The present invention is further configured such that the frame is provided with a distance-adjusting assembly for adjusting the distance between the left fixed seat and the right fixed seat; the distance-adjusting assembly comprises a distance-adjusting screw rod rotatably arranged on the frame along the longitudinal direction and a distance-adjusting guide rail arranged on the frame along the longitudinal direction; the two ends of the distance-adjusting screw rod are respectively provided with a left external thread and a right external thread with opposite rotation directions; the left external thread and the right external thread are respectively sleeved with a left nut and a right nut; the left nut is connected to the left fixed seat; the right nut is connected to the right fixed seat; the left fixed seat is provided with a left slider slidably connected to the distance-adjusting guide rail; the right fixed seat is provided with a right slider slidably connected to the distance-adjusting guide rail; The pitch adjustment assembly also includes a pitch adjustment wheel connected to the pitch adjustment screw; The frame is provided with a positioning rod along the transverse direction; the first positioning arm and the second positioning arm are respectively provided at both ends of the positioning rod; the material roll is arranged between the first positioning arm and the second positioning arm; the first positioning arm and the second positioning arm are both connected with an adjustment block; the adjustment block is slidably arranged on the positioning rod; the adjustment block is threadedly connected with a locking member for locking the adjustment block and the positioning rod.

[0011] The present invention is further configured such that the guide assembly comprises a left film separation roller and a right film separation roller which are arranged on the frame and rotate in the transverse direction; the left film separation roller and the right film separation roller are arranged opposite to each other; the left film separation roller and the right film separation roller are arranged at the bottom of the left steering plate and the bottom of the right steering plate; The frame is provided with a driving roller for rotation in the transverse direction; the frame is provided with a driving motor; the output end of the driving motor is connected to the driving roller; the frame is provided with a driven roller for rotation in the transverse direction; the driving roller and the driven roller are arranged opposite to each other; the driving roller and the driven roller are both arranged at the bottom of the material roll; The guide assembly also includes a first guide roller, a second guide roller, a third guide roller and a fourth guide roller which are arranged on the frame and rotate in the transverse direction; the first guide roller is arranged between the driving roller and the material roll; the second guide roller is arranged at the bottom of the driving roller; the third guide roller is arranged at the bottom of the second guide roller; the fourth guide roller is arranged at the bottom of the left film separation roller; The folding film of the material roll passes through the first guide roller, between the driving roller and the driven roller, the second guide roller, the third guide roller and the fourth guide roller in sequence, and then is separated by the left film separation roller and the right film separation roller, so that a part of the folding film is bent by the left steering plate, and the other part of the folding film is bent by the right steering plate.

[0012] The present invention is further configured such that the film sealing mechanism comprises a feeding conveyor belt and a discharging conveyor belt arranged on a frame; the feeding conveyor belt is arranged between the discharging conveyor belt and the feeding conveyor belt; a gap is arranged between the feeding conveyor belt and the discharging conveyor belt; the frame is provided with a top heat sealing component on the top of the feeding conveyor belt; the frame is provided with a side heat sealing component at the gap; The top heat sealing assembly comprises a heat sealing support shaft, a top heat sealing seat arranged on the heat sealing support shaft, and a first heat sealing wheel and a second heat sealing wheel both rotatably arranged on the top heat sealing seat; a top heat sealing linkage assembly is arranged between the first heat sealing wheel and the second heat sealing wheel; A resistance slider is provided inside the top heat sealing seat for sliding movement; the second heat sealing wheel is arranged on the resistance slider; a resistance spring is provided between the end of the top heat sealing seat away from the first heat sealing wheel and the resistance slider; the resistance spring is used for pushing the resistance slider so that the first heat sealing wheel and the second heat sealing wheel are in resistance.

[0013] The present invention is further configured that the top heat sealing seat is rotatably provided with a first heat sealing connecting shaft and a second heat sealing connecting shaft along the height direction; the first heat sealing connecting shaft and the second heat sealing connecting shaft are respectively connected to the first heat sealing wheel and the second heat sealing wheel; the first heat sealing connecting shaft is rotatably provided against the sliding block; The top heat sealing linkage assembly includes a heat sealing drive shaft rotatably arranged in the heat sealing support shaft, a first steering gear arranged on the heat sealing drive shaft, a second steering gear sleeved on the first heat sealing connecting shaft, a first linkage gear sleeved on the first heat sealing connecting shaft, and a second linkage gear sleeved on the second heat sealing connecting shaft; the first linkage gear is meshed with the second linkage gear; the first steering gear is meshed with the second steering gear; A baffle is provided between the first heat-sealing connecting shaft and the second heat-sealing connecting shaft; the top heat-sealing seat is provided with a supporting slide rail; the supporting slide block is slidably arranged on the supporting slide rail; the supporting spring is arranged between the end of the top heat-sealing seat away from the baffle and the supporting slide block.

[0014] The present invention is further configured such that the top heat sealing assembly further comprises a connecting seat, a guide support shaft disposed on the connecting seat, a guide seat disposed on the guide support shaft, and a first guide wheel and a second guide wheel both rotatably disposed on the guide seat; the heat sealing support shaft is disposed on the connecting seat; A guide drive shaft is rotatably arranged in the guide support shaft; a third steering gear is arranged on the guide drive shaft; a fourth steering gear meshing with the third steering gear is arranged coaxially with the first guide wheel; The frame is provided with a height slide rail along the height direction; the connecting seat is slidably arranged on the height slide rail; the frame is provided with an adjustment seat; the adjustment seat is threadedly connected with an adjustment screw arranged along the height direction; the adjustment screw is connected to the connecting seat; the adjustment screw is provided with a fifth steering gear; the fifth steering gear is meshed with a sixth steering gear; the sixth steering gear is connected with an adjustment rotating rod.

[0015] The present invention is further configured such that the side heat sealing assembly comprises a first side heat sealing seat and a second side heat sealing seat which are arranged opposite to each other in the gap; the frame is provided with a heat sealing slide rail along the longitudinal direction; the first side heat sealing seat and the second side heat sealing seat are respectively slidably arranged on the heat sealing slide rail; the first side heat sealing seat is provided with a first heat sealing plate; the second side heat sealing seat is provided with a second heat sealing plate; The frame is provided with a heat sealing motor; a crank connecting rod assembly is provided between the heat sealing motor and the first side heat sealing seat; the heat sealing motor drives the first side heat sealing seat to move back and forth along the heat sealing slide rail through the crank connecting rod assembly; a synchronous reverse linkage assembly is provided between the first side heat sealing seat and the second side heat sealing seat; The loading conveyor belt and the discharging conveyor belt are both arranged in the transverse direction; the frame is provided with a fixed plate; the fixed plate is provided with a sliding plate that slides in the transverse direction; the discharging conveyor belt is arranged on the sliding plate; the fixed plate is provided with an adjusting cylinder; the output end of the adjusting cylinder is connected to the sliding plate.

[0016] Beneficial effects of the present invention: 1. It can be directly connected to the conveying equipment after the injection molding machine discharges and stacks the materials, without the need to lay down the stacked disposable lunch boxes and lids before packaging; 2. Compatible with disposable lunch box covers with regular specifications on the market; 3. The upper film of the packaging film is a folded film, and the space occupied by the packaging film on the packaging machine is reduced to half of that of the existing packaging machine; Fourth, the placement direction of the packaging film is parallel to the overall conveying direction. At the same time, the overall conveying direction can also be parallel to the injection molding machine. When changing the film, the packaging film does not need to be moved out in the vertical direction, so it is not limited by the distance between two injection molding machines placed side by side. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the transport mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of the transport mechanism of the present invention after hiding the feed transmission component and the transfer transmission component; Figure 4 It is a structural schematic diagram of another perspective after the conveying mechanism of the present invention hides the feed transmission component and the transfer transmission component; Figure 5 It is a schematic diagram of the structure of the cooperation between the moving seat and the transporting seat of the present invention; Figure 6 It is a structural schematic diagram of the film upper mechanism of the present invention; Figure 7 It is a structural schematic diagram of the film upper mechanism of the present invention from another perspective; Figure 8 It is a structural schematic diagram of the upper membrane mechanism of the present invention from another perspective; Fig. 9 is a cross-sectional view of the upper membrane mechanism of the present invention; Fig.10 It is a structural schematic diagram of the film sealing mechanism of the present invention; Fig.11 It is a structural schematic diagram of the film sealing mechanism of the present invention from another perspective; Fig.12 It is an internal structure diagram of the heat-sealing support shaft and the top heat-sealing seat of the present invention; Fig.13 It is an internal structure diagram of the cooperation between the guide support shaft and the guide heat sealing seat of the present invention; Fig.14 It is a schematic structural diagram of the side heat sealing assembly of the present invention; Among them: 11, transport rack; 111, transverse rack; 112, transverse slide; 12, transport seat; 121, lifting slide; 131, rotating platform; 132, pneumatic clamp; 141, first clamp; 142, second clamp; 15, moving seat; 151, lifting cylinder; 152, lifting slider; 153, longitudinal motor; 154, longitudinal slider; 155, longitudinal gear; 16, gantry; 161, longitudinal rack; 162, longitudinal slide; 163, transverse motor; 164, transverse gear; 165, transverse slider; 17, transfer conveyor belt; 181, feed rack; 182, lifting rack; 19, feed conveyor belt; 2 1. Frame; 211. Left film separation roller; 212. Right film separation roller; 213. Driving roller; 214. Driven roller; 22. Material roll; 231. Left fixed seat; 232. Right fixed seat; 233. Left steering plate; 234. Right steering plate; 24. Transmission plate; 241. Feeding conveyor belt; 25. Pitch adjustment screw; 251. Left nut; 252. Right nut; 253. Pitch adjustment guide rail; 254. Left slider; 255. Right slider; 256. Pitch adjustment wheel; 26. Positioning rod; 261. First positioning arm; 262. Second positioning arm; 263. Adjusting block; 264. Locking piece; 271. First guide roller; 272. Second guide roller; 2 73, third guide roller; 274, fourth guide roller; 311, feeding conveyor belt; 312, gap; 32, fixed plate; 321, sliding plate; 322, adjusting cylinder; 323, discharging conveyor belt; 33, heat sealing support shaft; 331, heat sealing drive shaft; 332, first steering gear; 333, second steering gear; 334, first linkage gear; 335, second linkage gear; 34, top heat sealing seat; 341, first heat sealing wheel; 342, second heat sealing wheel; 343, abutting slider; 344, abutting spring; 345, first heat sealing connecting shaft; 346, second heat sealing connecting shaft; 347, baffle; 348, abutting slide rail ;35. Guide support shaft;351. Guide drive shaft;352. Third steering gear;36. Guide seat;361. First guide wheel;362. Second guide wheel;363. Fourth steering gear;37. Connecting seat;371. Height slide rail;372. Adjusting seat;373. Adjusting screw;374. Fifth steering gear;375. Sixth steering gear;376. Adjusting rotating rod;381. First side heat sealing seat;382. Second side heat sealing seat;383. Heat sealing slide rail;384. First heat sealing plate;385. Second heat sealing plate;391. Heat sealing motor;392. Crank connecting rod assembly;393. Synchronous reverse linkage assembly. DETAILED DESCRIPTION

[0019] The present invention is further described in conjunction with the following examples.

[0020] Depend on Figures 1 to 14It can be seen that the disposable lunch box and lid multi-specification compatible automatic bagging packaging machine described in this embodiment includes a conveying mechanism, a film-loading mechanism and a film-sealing mechanism which are arranged in sequence; The conveying mechanism includes a feed transmission component and a conveying frame 11; the conveying frame 11 is provided with a conveying component; the conveying frame 11 is provided with a transfer transmission component at the bottom of the conveying component; the transfer transmission component and the feed transmission component are both arranged in the transverse direction; The film loading mechanism includes a frame 21; the frame 21 is provided with a material roll 22 placed in a transverse direction; the frame 21 is provided with a left fixed seat 231 and a right fixed seat 232 arranged opposite to each other; the frame 21 is provided with a transmission plate 24 in a transverse direction; the transmission plate 24 is provided with a feeding conveyor belt 241 movably arranged in the transverse direction; the feeding conveyor belt 241 is provided at one end of the transfer transmission component; The frame 21 is provided with a left fixed seat 231 and a right fixed seat 232; the left fixed seat 231 is provided with a left steering plate 233; the right fixed seat 232 is provided with a right steering plate 234 arranged opposite to the left steering plate 233; the left steering plate 233 and the right steering plate 234 are respectively arranged on both sides of the transmission plate 24; the frame 21 is provided with a guide component between the material roll 22, the left steering plate 233 and the right steering plate 234.

[0021] Specifically, the disposable lunch box and meal cover multi-specification compatible automatic bagging packaging machine described in this embodiment, when in use, the feed transmission component is placed at the position of the external injection molding machine, the external injection molding machine moves the lunch box or meal cover to the feed transmission component, and the feed transmission component moves the lunch box or meal cover to the transfer transmission component, that is, the position below the conveying component; then the conveying component conveys the lunch box or meal cover to the feeding conveyor belt 241; in addition, a folding film is wound on the material roll 22, and the folding film is folded from the middle of the film body to form a structure that is symmetrical on both sides and connected in the middle; the folding film on the material roll 22 is transmitted to the left film separation roller 211 and the right film separation roller 211 through the guide assembly. Between the film rollers 212, the film separation process is carried out at the left film separation roller 211 and the right film separation roller 212. After the folded film is separated, a part of the folded film is bent inward from the outer side of the left steering plate 233 along the oblique edge of the left steering plate 233, and the other part of the folded film is bent inward from the outer side of the right steering plate 234 along the oblique edge of the right steering plate 234, and the connection between the folded films on both sides passes through the bottom of the transmission plate 24, so that a part of the folded film is transmitted in the transverse direction, and the other part of the folded film is transmitted in the transverse direction; then the lunch box or the lunch cover is placed on the feeding conveyor belt 241, so that the lunch box or the lunch cover can move in the folded films on both sides. Therefore, when the lunch box or lunch cover moves with the feeding conveyor belt 241, the packaging film moves along with it. In the film sealing mechanism, since the connection between the two folded films is arranged at the bottom of the lunch box or lunch cover, when heat sealing, it is only necessary to heat seal the top, front end and rear end of the two folded films, and there is no need to heat seal the bottom of the folded film, which can save costs and improve work efficiency.

[0022] This embodiment can realize automatic packaging of lunch boxes and lids by providing a conveying mechanism, a film-loading mechanism and a film-sealing mechanism; in addition, it can be directly connected to the injection molding machine without manual transfer and adjustment operations, thereby reducing the workload of traditional manual conveying, adjustment and bagging one by one, avoiding the use of multiple incompatible specifications of machines and equipment, improving the efficiency of bagging, thereby shortening the production cycle of bagging, and realizing stable, reliable and fast bagging work.

[0023] The present embodiment describes an automatic bagging packaging machine for disposable lunch boxes and lids that is compatible with multiple specifications, wherein the conveying assembly includes a conveying seat 12 movably arranged on a conveying frame 11; the conveying seat 12 is provided with a rotating platform 131; the output end of the rotating platform 131 is provided with a pneumatic clamp 132; the output end of the pneumatic clamp 132 is provided with a first clamp plate 141 and a second clamp plate 142 that are relatively arranged; the frame 21 is provided with a transverse movement assembly for driving the conveying seat 12 to move horizontally, a longitudinal movement assembly for driving the conveying seat 12 to move longitudinally, and a lifting assembly for driving the conveying seat 12 to move up and down; the transfer transmission assembly is arranged at the bottom of the first clamp plate 141 and the second clamp plate 142.

[0024] When in use, the feed transmission assembly is placed at the position of the external injection molding machine, and the external injection molding machine moves the lunch box or lunch cover to the feed transmission assembly, and the feed transmission assembly moves the lunch box or lunch cover to the transfer transmission assembly, that is, the position below the first clamping plate 141 and the second clamping plate 142; then the transverse movement assembly and the longitudinal movement assembly drive the transport seat 12 to move to the top of the lunch box or lunch cover, and then the lifting assembly drives the first clamping plate 141 and the second clamping plate 142 to descend. After the first clamping plate 141 and the second clamping plate 142 clamp the lunch box or lunch cover, the lunch box or lunch cover is rotated 90 degrees by the rotating platform 131, and finally the transport seat 12 is driven by the transverse movement assembly and the longitudinal movement assembly to move to the feeding conveyor belt 241. This embodiment provides a transport seat 12, a transverse movement component, a longitudinal movement component, a lifting component, a feed transmission component and a transfer transmission component, so that the lunch box or the lunch cover after injection molding can be transported, and after the lunch box or the lunch cover is clamped by the first clamping plate 141 and the second clamping plate 142, it is turned 90 degrees, which can effectively prevent the lunch box or the lunch cover from tipping over.

[0025] The embodiment described in this invention is a disposable lunch box and lid automatic bagging packaging machine with multiple specifications, wherein the lifting component includes a moving seat 15 and a lifting cylinder 151 arranged on the moving seat 15; the output end of the lifting cylinder 151 is connected to the transport seat 12; the lifting component also includes a lifting rail 121 arranged along the height direction of the transport seat 12 and a lifting slider 152 arranged on the moving seat 15; the lifting slider 152 is slidably arranged on the lifting rail 121; when the lifting cylinder 151 is started, it can drive the transport seat 12 to drive the first clamping plate 141 and the second clamping plate 142 to perform lifting activities under the guidance of the lifting slider 152 and the lifting rail 121.

[0026] The longitudinal movement component includes a gantry 16, a longitudinal movement rack 161 arranged on the gantry 16 along the longitudinal direction, a longitudinal movement motor 153 arranged on the moving seat 15, and a longitudinal movement gear 155 arranged at the output end of the longitudinal movement motor 153; the longitudinal movement gear 155 is meshed with the longitudinal movement rack 161; the longitudinal movement component also includes a longitudinal movement rail 162 arranged on the gantry 16 along the longitudinal direction and a longitudinal movement slider 154 arranged on the moving seat 15; the longitudinal movement slider 154 is slidably arranged on the longitudinal movement rail 162; when the longitudinal movement motor 153 is started, under the meshing of the longitudinal movement motor 153 and the longitudinal movement gear 155, the moving seat 15 can be driven to move the first clamping plate 141 and the second clamping plate 142 in the longitudinal direction under the guidance of the longitudinal movement slider 154 and the longitudinal movement rail 162.

[0027] The transverse shift assembly includes a transverse shift rack 111 disposed on the transport frame 11 in the transverse direction, a transverse shift motor 163 disposed on the gantry 16, and a transverse shift gear 164 disposed at the output end of the transverse shift motor 163; the transverse shift gear 164 is meshed with the transverse shift rack 111; the transverse shift assembly also includes a transverse shift rail 112 disposed on the transport frame 11 in the transverse direction and a transverse shift slider 165 disposed on the gantry 16; the transverse shift slider 165 is slidably disposed on the transverse shift rail 112. When the transverse shift motor 163 is started, the transverse shift motor 163 is meshed with the transverse shift gear 164, which can drive the gantry 16 to move the first clamping plate 141 and the second clamping plate 142 in the transverse direction under the guidance of the transverse shift slider 165 and the transverse shift rail 112.

[0028] The embodiment of the present invention is a disposable lunch box and lid compatible with multiple specifications automatic bagging packaging machine, the transfer transmission component includes a transfer conveyor belt 17 arranged at the bottom of the first clamping plate 141 and the bottom of the second clamping plate 142 and arranged in the transverse direction; the feeding transmission component includes a feeding frame 181, a lifting frame 182 that is movable and arranged on the feeding frame 181, and a feeding conveyor belt 19 arranged in the transverse direction on the lifting frame 182; the feeding conveyor belt 19 is arranged in parallel with the transfer conveyor belt 17; the transfer conveyor belt 17 is arranged between the feeding conveyor belt 241 and the feeding conveyor belt 19; the handling component moves between the transfer conveyor belt 17 and the feeding conveyor belt 241. In the present embodiment, the transfer conveyor belt 17 is arranged in parallel with the feeding conveyor belt 19, so as to prevent the lunch box or the lid from tipping over when transferring between the transfer conveyor belt 17 and the feeding conveyor belt 19.

[0029] The embodiment of the present invention is a disposable lunch box and lid multi-specification compatible automatic bagging packaging machine, the frame 21 is provided with a distance adjustment component for adjusting the distance between the left fixed seat 231 and the right fixed seat 232; the distance adjustment component includes a distance adjustment screw 25 arranged on the frame 21 in a longitudinal direction and a distance adjustment guide rail 253 arranged on the frame 21 in a longitudinal direction; the two ends of the distance adjustment screw 25 are respectively provided with a left external thread and a right external thread with opposite rotation directions; the left external thread and the right external thread are respectively sleeved with a left nut 251 and a right nut 252; the left nut 251 is connected to the left fixed seat 231; the right nut 252 is connected to the right fixed seat 232; the left fixed seat 231 is provided with a left slider 254 slidably connected to the distance adjustment guide rail 253; the right fixed seat 232 is provided with a right slider 255 slidably connected to the distance adjustment guide rail 253; the distance adjustment component also includes a distance adjustment wheel 256 connected to the distance adjustment screw 25; the distance adjustment wheel 256 is a distance adjustment hand wheel. Specifically, when it is necessary to match lunch boxes or lunch covers of different sizes, the pitch adjusting wheel 256 is rotated to rotate the pitch adjusting screw 25. Since the two ends of the pitch adjusting screw 25 are provided with a left external thread and a right external thread with opposite rotation directions, when the pitch adjusting screw 25 rotates, it can drive the left fixed seat 231 and the right fixed seat 232 to move closer to or away from each other along the pitch adjusting guide rail 253.

[0030] The frame 21 is provided with a positioning rod 26 in the transverse direction; the first positioning arm 261 and the second positioning arm 262 are provided at both ends of the positioning rod 26; the material roll 22 is arranged between the first positioning arm 261 and the second positioning arm 262; the first positioning arm 261 and the second positioning arm 262 are both connected with an adjustment block 263; the adjustment block 263 is slidably arranged on the positioning rod 26; the adjustment block 263 is threadedly connected with a locking member 264 for locking the adjustment block 263 and the positioning rod 26. By rotating the locking member 264, the adjustment block 263 and the positioning rod 26 are fixed or unlocked, so that the adjustment block 263 can be moved according to the size of the material roll 22, so as to adjust the distance between the first positioning arm 261 and the second positioning arm 262, so that the position of the material roll 22 can be fixed.

[0031] The embodiment of the present invention is a disposable lunch box lid multi-specification compatible automatic bagging packaging machine, the guide assembly includes a left film separation roller 211 and a right film separation roller 212 which are arranged on the frame 21 and rotate in the transverse direction; the left film separation roller 211 and the right film separation roller 212 are arranged opposite to each other; the left film separation roller 211 and the right film separation roller 212 are arranged at the bottom of the left steering plate 233 and the bottom of the right steering plate 234; The frame 21 is provided with a driving roller 213 for rotating in the transverse direction; the frame 21 is provided with a driving motor; the driving motor is not shown in the figure; the output end of the driving motor is connected to the driving roller 213; the frame 21 is provided with a driven roller 214 for rotating in the transverse direction; the driving roller 213 and the driven roller 214 are arranged opposite to each other; the driving roller 213 and the driven roller 214 are both arranged at the bottom of the material roll 22; the above arrangement facilitates driving the folding film for transmission.

[0032] The guide assembly also includes a first guide roller 271, a second guide roller 272, a third guide roller 273 and a fourth guide roller 274 which are arranged on the frame 21 and rotate along the transverse direction; the first guide roller 271 is arranged between the driving roller 213 and the material roll 22; the second guide roller 272 is arranged at the bottom of the driving roller 213; the third guide roller 273 is arranged at the bottom of the second guide roller 272; the fourth guide roller 274 is arranged at the bottom of the left film-separating roller 211; the folding film of the material roll 22 passes through the first guide roller 271, between the driving roller 213 and the driven roller 214, the second guide roller 272, the third guide roller 273 and the fourth guide roller 274 in sequence, and then is separated by the left film-separating roller 211 and the right film-separating roller 212, so that a part of the folding film is bent by the left steering plate 233, and the other part of the folding film is bent by the right steering plate 234.

[0033] The embodiment of the present invention is a disposable lunch box lid multi-specification compatible automatic bagging packaging machine, the film sealing mechanism includes a feeding conveyor belt 311 and a discharging conveyor belt 323 arranged on the frame 21; the feeding conveyor belt 311 is arranged between the discharging conveyor belt 323 and the feeding conveyor belt 241; a gap 312 is arranged between the feeding conveyor belt 311 and the discharging conveyor belt 323; the frame 21 is provided with a top heat sealing component at the top of the feeding conveyor belt 311; the frame 21 is provided with a side heat sealing component at the gap 312; The top heat sealing assembly includes a heat sealing support shaft 33, a top heat sealing seat 34 disposed on the heat sealing support shaft 33, and a first heat sealing wheel 341 and a second heat sealing wheel 342 both rotatably disposed on the top heat sealing seat 34; a top heat sealing linkage assembly is disposed between the first heat sealing wheel 341 and the second heat sealing wheel 342; wherein the first heat sealing wheel 341 and the second heat sealing wheel 342 are both provided with heating elements, which can quickly heat the packaging film; A supporting slider 343 is slidingly provided inside the top heat sealing seat 34; the second heat sealing wheel 342 is arranged on the supporting slider 343; a supporting spring 344 is provided between the end of the top heat sealing seat 34 away from the first heat sealing wheel 341 and the supporting slider 343; the supporting spring 344 is used to push the supporting slider 343 so that the first heat sealing wheel 341 and the second heat sealing wheel 342 are abutted.

[0034] When the lunch box or the lunch cover moves to the top heat-sealing assembly via the feeding conveyor belt 311, the packaging film on the top of the lunch box or the lunch cover moves between the first heat-sealing wheel 341 and the second heat-sealing wheel 342. Due to the effect of the abutting spring 344, the packaging film on the top of the lunch box or the lunch cover can be pressed tightly between the first heat-sealing wheel 341 and the second heat-sealing wheel 342, thereby ensuring the sealing effect of the top of the packaging film. In addition, since the first heat-sealing wheel 341 and the second heat-sealing wheel 342 can move relative to each other, the top heat-sealing assembly can adapt to lunch boxes or lunch covers of different sizes. Specifically, when the front end or rear end of the lunch box or the lunch cover moves to the gap 312, the side heat sealing component heat seals the packaging film at the front end of the lunch box or the lunch cover and the packaging film at the rear end of the lunch box or the lunch cover; since the side heat sealing component is arranged at the gap 312 between the loading conveyor belt 311 and the unloading conveyor belt 323, it can prevent the side heat sealing component from contacting the loading conveyor belt 311, thereby ensuring the sealing effect.

[0035] The embodiment described in this invention is a disposable lunch box and lid compatible with multiple specifications automatic bagging packaging machine, wherein the top heat sealing seat 34 is provided with a first heat sealing connecting shaft 345 and a second heat sealing connecting shaft 346 that rotate along the height direction; the first heat sealing connecting shaft 345 and the second heat sealing connecting shaft 346 are respectively connected to the first heat sealing wheel 341 and the second heat sealing wheel 342; the first heat sealing connecting shaft 345 is rotatably arranged to abut against the slider 343; by providing the first heat sealing connecting shaft 345 and the second heat sealing connecting shaft 346, the overall structure is more stable and reliable.

[0036] The top heat sealing linkage assembly includes a heat sealing drive shaft 331 rotatably arranged in the heat sealing support shaft 33, a first steering gear 332 arranged on the heat sealing drive shaft 331, a second steering gear 333 sleeved on the first heat sealing connecting shaft 345, a first linkage gear 334 sleeved on the first heat sealing connecting shaft 345, and a second linkage gear 335 sleeved on the second heat sealing connecting shaft 346; the first linkage gear 334 is meshed with the second linkage gear 335; the first steering gear 332 is meshed with the second steering gear 333; the heat sealing drive shaft 331 is driven to rotate by an external driving member, so that the first steering gear 332 is engaged with the second steering gear 333; The second steering gear 333 is driven to rotate, so that the first heat sealing connecting shaft 345 is rotated, and the first heat sealing connecting shaft 345 drives the second heat sealing connecting shaft 346 to rotate synchronously through the first linkage gear 334 and the second linkage gear 335, so that the first heat sealing wheel 341 and the second heat sealing wheel 342 are rotated synchronously to perform heat sealing on the top of the packaging film; among them, since the tooth length of the first linkage gear 334 and the second linkage gear 335 is longer and the thickness of the packaging film is smaller, the displacement against the slider 343 is smaller, and the first linkage gear 334 and the second linkage gear 335 are always kept in a meshing state.

[0037] A baffle plate 347 is provided between the first heat sealing connecting shaft 345 and the second heat sealing connecting shaft 346; the top heat sealing seat 34 is provided with a supporting slide rail 348; the supporting slider 343 is slidably arranged on the supporting slide rail 348; the supporting spring 344 is arranged between the end of the top heat sealing seat 34 away from the baffle plate 347 and the supporting slider 343; the above arrangement makes the overall structure more stable and reliable.

[0038] The embodiment of the present invention is a disposable lunch box and lid compatible with multiple specifications automatic bagging packaging machine, the top heat sealing component also includes a connecting seat 37, a guide support shaft 35 arranged on the connecting seat 37, a guide seat 36 arranged on the guide support shaft 35, and a first guide wheel 361 and a second guide wheel 362 both rotatably arranged on the guide seat 36; the heat sealing support shaft 33 is arranged on the connecting seat 37; a guide drive shaft 351 is rotatably arranged inside the guide support shaft 35; the guide drive shaft 351 is provided with a third steering gear 352; the first guide wheel 361 is coaxially provided with a fourth steering gear 363 meshing with the third steering gear 352; the external motor drives the guide drive shaft 351 to rotate, so that the third steering gear 352 drives the fourth steering gear 363 to rotate, so that the first guide wheel 361 rotates; through the cooperation of the first guide wheel 361 and the second guide wheel 362, the movement of the packaging film can be guided.

[0039] The frame 21 is provided with a height slide rail 371 along the height direction; the connecting seat 37 is slidably arranged on the height slide rail 371; the frame 21 is provided with an adjustment seat 372; the adjustment seat 372 is threadedly connected with an adjustment screw 373 arranged along the height direction; the adjustment screw 373 is connected to the connecting seat 37; the adjustment screw 373 is provided with a fifth steering gear 374; the fifth steering gear 374 is meshed with a sixth steering gear 375; the sixth steering gear 375 is connected with an adjustment rotating rod 376. Through the above arrangement, the connecting seat 37 can be raised and lowered by rotating the adjustment rotating rod 376, so that the lunch boxes and lids stacked at different heights can be matched.

[0040] The embodiment of the present invention is a disposable lunch box and lid compatible automatic bagging packaging machine, wherein the side heat sealing assembly includes a first side heat sealing seat 381 and a second side heat sealing seat 382 which are arranged opposite to each other at the gap 312; the frame 21 is provided with a heat sealing slide rail 383 along the longitudinal direction; the first side heat sealing seat 381 and the second side heat sealing seat 382 are respectively slidably arranged on the heat sealing slide rail 383; the first side heat sealing seat 381 is provided with a first heat sealing plate 384; the second side heat sealing seat 382 is provided with a second heat sealing plate 385; wherein the first heat sealing plate 384 and the second heat sealing plate 385 are both provided with heating elements, which can quickly heat the packaging film; The frame 21 is provided with a heat sealing motor 391; a crank connecting rod assembly 392 is provided between the heat sealing motor 391 and the first side heat sealing seat 381; the heat sealing motor 391 drives the first side heat sealing seat 381 to move back and forth along the heat sealing slide rail 383 through the crank connecting rod assembly 392; a synchronous reverse linkage assembly 393 is provided between the first side heat sealing seat 381 and the second side heat sealing seat 382; When the front end or the rear end of the lunch box or the lunch cover moves to the gap 312, the heat sealing motor 391 drives the first side heat sealing seat 381 to move along the heat sealing slide rail 383 through the crank connecting rod assembly 392, and the first side heat sealing seat 381 drives the second side heat sealing seat 382 to move in the opposite direction under the action of the synchronous reverse linkage assembly 393, so that the first heat sealing plate 384 and the second heat sealing plate 385 are close to each other, and the packaging film at the front end of the lunch box or the lunch cover and the packaging film at the rear end of the lunch box or the lunch cover are heat-sealed; since the first heat sealing plate 384 and the second heat sealing plate 385 are both arranged in the gap 312 between the feeding conveyor belt 311 and the discharging conveyor belt 323, the first heat sealing plate 384 and the second heat sealing plate 385 can be respectively in contact with the feeding conveyor belt 311, thereby ensuring the sealing effect.

[0041] The feeding conveyor belt 311 and the discharging conveyor belt 323 are both arranged in the transverse direction; the frame 21 is provided with a fixed plate 32; the fixed plate 32 is provided with a sliding plate 321 sliding in the transverse direction; the discharging conveyor belt 323 is arranged on the sliding plate 321; the fixed plate 32 is provided with an adjusting cylinder 322; the output end of the adjusting cylinder 322 is connected to the sliding plate 321. Through the above arrangement, the distance between the feeding conveyor belt 311 and the discharging conveyor belt 323 can be adjusted, thereby adjusting the width of the gap 312, so as to adapt to different sizes of lunch boxes or lids.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A disposable lunch box and lid multi-specification compatible automatic bagging packaging machine, characterized by: It includes a conveying mechanism, a film loading mechanism and a film sealing mechanism which are arranged in sequence; The conveying mechanism comprises a feed transmission component and a conveying frame; the conveying frame is provided with a conveying component; the conveying frame is provided with a transfer transmission component at the bottom of the conveying component; the transfer transmission component and the feed transmission component are both arranged in the transverse direction; The film loading mechanism comprises a frame; the frame is provided with a material roll placed in a transverse direction; the frame is provided with a left fixed seat and a right fixed seat arranged opposite to each other; the frame is provided with a transmission plate in a transverse direction; the transmission plate is provided with a feeding conveyor belt movably arranged in the transverse direction; the feeding conveyor belt is arranged at one end of the transfer transmission component; The frame is provided with a left fixed seat and a right fixed seat; the left fixed seat is provided with a left steering plate; the right fixed seat is provided with a right steering plate arranged opposite to the left steering plate; the left steering plate and the right steering plate are respectively arranged on both sides of the transmission plate; the frame is provided with a guide component between the material roll, the left steering plate and the right steering plate.

2. According to claim 1, a disposable lunch box and lid multi-specification compatible automatic bagging packaging machine is characterized by: The transport assembly includes a transport seat movably arranged on the transport frame; the transport seat is provided with a rotating platform; the output end of the rotating platform is provided with a pneumatic clamp; the output end of the pneumatic clamp is provided with a first clamping plate and a second clamping plate arranged opposite to each other; the frame is provided with a transverse movement assembly for driving the transport seat to move horizontally, a longitudinal movement assembly for driving the transport seat to move longitudinally, and a lifting assembly for driving the transport seat to move up and down; the transfer transmission assembly is arranged at the bottom of the first clamping plate and the second clamping plate.

3. The automatic bagging and packaging machine for disposable lunch boxes and lids with multiple specifications according to claim 2 is characterized by: The lifting assembly includes a moving seat and a lifting cylinder arranged on the moving seat; the output end of the lifting cylinder is connected to the transporting seat; the lifting assembly also includes a lifting rail arranged along the height direction of the transporting seat and a lifting slider arranged on the moving seat; the lifting slider is slidably arranged on the lifting rail; The longitudinal shift assembly includes a gantry, a longitudinal shift rack provided on the gantry along the longitudinal direction, a longitudinal shift motor provided on the moving seat, and a longitudinal shift gear provided on the output end of the longitudinal shift motor; the longitudinal shift gear is meshed with the longitudinal shift rack; the longitudinal shift assembly also includes a longitudinal shift rail provided on the gantry along the longitudinal direction and a longitudinal shift slider provided on the moving seat; the longitudinal shift slider is slidably provided on the longitudinal shift rail; The transverse movement component includes a transverse movement rack arranged on the transport frame along the transverse direction, a transverse movement motor arranged on the gantry, and a transverse movement gear arranged at the output end of the transverse movement motor; the transverse movement gear is meshed with the transverse movement rack; the transverse movement component also includes a transverse movement rail arranged on the transport frame along the transverse direction and a transverse movement slider arranged on the gantry; the transverse movement slider is slidably arranged on the transverse movement rail.

4. According to claim 2, the automatic bagging and packaging machine for disposable lunch boxes and lids with multiple specifications is characterized by: The transfer transmission component includes a transfer conveyor belt arranged at the bottom of the first clamp plate and the bottom of the second clamp plate and arranged in the transverse direction; the feed transmission component includes a feed rack, a lifting rack that is movable on the feed rack, and a feed conveyor belt arranged on the lifting rack in the transverse direction; the feed conveyor belt is arranged parallel to the transfer conveyor belt; the transfer conveyor belt is arranged between the feeding conveyor belt and the feeding conveyor belt; the handling component moves between the transfer conveyor belt and the feeding conveyor belt.

5. According to claim 1, the automatic bagging packaging machine for disposable lunch boxes and lids with multiple specifications is characterized by: The frame is provided with a distance-adjusting assembly for adjusting the distance between the left fixed seat and the right fixed seat; the distance-adjusting assembly comprises a distance-adjusting screw rod which is rotatably arranged on the frame along the longitudinal direction and a distance-adjusting guide rail which is arranged on the frame along the longitudinal direction; the two ends of the distance-adjusting screw rod are respectively provided with a left external thread and a right external thread which are rotated in opposite directions; the left external thread and the right external thread are respectively sleeved with a left nut and a right nut; the left nut is connected to the left fixed seat; the right nut is connected to the right fixed seat; the left fixed seat is provided with a left slider which is slidably connected to the distance-adjusting guide rail; the right fixed seat is provided with a right slider which is slidably connected to the distance-adjusting guide rail; The pitch adjustment assembly also includes a pitch adjustment wheel connected to the pitch adjustment screw; The frame is provided with a positioning rod along the transverse direction; the first positioning arm and the second positioning arm are respectively provided at both ends of the positioning rod; the material roll is arranged between the first positioning arm and the second positioning arm; the first positioning arm and the second positioning arm are both connected with an adjustment block; the adjustment block is slidably arranged on the positioning rod; the adjustment block is threadedly connected with a locking member for locking the adjustment block and the positioning rod.

6. The automatic bagging and packaging machine for disposable lunch boxes and lids with multiple specifications according to claim 1, characterized in that: The guide assembly comprises a left film separation roller and a right film separation roller which are arranged on the frame and rotate in the transverse direction; the left film separation roller and the right film separation roller are arranged opposite to each other; the left film separation roller and the right film separation roller are arranged at the bottom of the left steering plate and the bottom of the right steering plate; The frame is provided with a driving roller for rotation in the transverse direction; the frame is provided with a driving motor; the output end of the driving motor is connected to the driving roller; the frame is provided with a driven roller for rotation in the transverse direction; the driving roller and the driven roller are arranged opposite to each other; the driving roller and the driven roller are both arranged at the bottom of the material roll; The guide assembly also includes a first guide roller, a second guide roller, a third guide roller and a fourth guide roller which are arranged on the frame and rotate in the transverse direction; the first guide roller is arranged between the driving roller and the material roll; the second guide roller is arranged at the bottom of the driving roller; the third guide roller is arranged at the bottom of the second guide roller; the fourth guide roller is arranged at the bottom of the left film separation roller; The folding film of the material roll passes through the first guide roller, between the driving roller and the driven roller, the second guide roller, the third guide roller and the fourth guide roller in sequence, and then is separated by the left film separation roller and the right film separation roller, so that a part of the folding film is bent by the left steering plate, and the other part of the folding film is bent by the right steering plate.

7. The automatic bagging and packaging machine for disposable lunch boxes and lids with multiple specifications according to claim 1, characterized in that: The film sealing mechanism comprises a feeding conveyor belt and a discharging conveyor belt arranged on the frame; the feeding conveyor belt is arranged between the discharging conveyor belt and the feeding conveyor belt; a gap is arranged between the feeding conveyor belt and the discharging conveyor belt; the frame is provided with a top heat sealing component on the top of the feeding conveyor belt; the frame is provided with a side heat sealing component at the gap; The top heat sealing assembly comprises a heat sealing support shaft, a top heat sealing seat arranged on the heat sealing support shaft, and a first heat sealing wheel and a second heat sealing wheel both rotatably arranged on the top heat sealing seat; a top heat sealing linkage assembly is arranged between the first heat sealing wheel and the second heat sealing wheel; A resistance slider is provided inside the top heat sealing seat for sliding movement; the second heat sealing wheel is arranged on the resistance slider; a resistance spring is provided between the end of the top heat sealing seat away from the first heat sealing wheel and the resistance slider; the resistance spring is used for pushing the resistance slider so that the first heat sealing wheel and the second heat sealing wheel are in resistance.

8. The automatic bagging and packaging machine for disposable lunch boxes and lids with multiple specifications according to claim 7, characterized in that: The top heat sealing seat is rotatably provided with a first heat sealing connecting shaft and a second heat sealing connecting shaft along the height direction; the first heat sealing connecting shaft and the second heat sealing connecting shaft are respectively connected to the first heat sealing wheel and the second heat sealing wheel; the first heat sealing connecting shaft is rotatably provided against the sliding block; The top heat sealing linkage assembly includes a heat sealing drive shaft rotatably arranged in the heat sealing support shaft, a first steering gear arranged on the heat sealing drive shaft, a second steering gear sleeved on the first heat sealing connecting shaft, a first linkage gear sleeved on the first heat sealing connecting shaft, and a second linkage gear sleeved on the second heat sealing connecting shaft; the first linkage gear is meshed with the second linkage gear; the first steering gear is meshed with the second steering gear; A baffle is provided between the first heat-sealing connecting shaft and the second heat-sealing connecting shaft; the top heat-sealing seat is provided with a supporting slide rail; the supporting slide block is slidably arranged on the supporting slide rail; the supporting spring is arranged between the end of the top heat-sealing seat away from the baffle and the supporting slide block.

9. The automatic bagging and packaging machine for disposable lunch boxes and lids with multiple specifications according to claim 7, characterized in that: The top heat sealing assembly further comprises a connecting seat, a guide support shaft disposed on the connecting seat, a guide seat disposed on the guide support shaft, and a first guide wheel and a second guide wheel both rotatably disposed on the guide seat; the heat sealing support shaft is disposed on the connecting seat; A guide drive shaft is rotatably arranged in the guide support shaft; a third steering gear is arranged on the guide drive shaft; a fourth steering gear meshing with the third steering gear is arranged coaxially with the first guide wheel; The frame is provided with a height slide rail along the height direction; the connecting seat is slidably arranged on the height slide rail; the frame is provided with an adjustment seat; the adjustment seat is threadedly connected with an adjustment screw arranged along the height direction; the adjustment screw is connected to the connecting seat; the adjustment screw is provided with a fifth steering gear; the fifth steering gear is meshed with a sixth steering gear; the sixth steering gear is connected with an adjustment rotating rod.

10. The automatic bagging packaging machine for disposable lunch boxes and lids with multiple specifications according to claim 7, characterized in that: The side heat sealing assembly comprises a first side heat sealing seat and a second side heat sealing seat which are arranged opposite to each other in the gap; the frame is provided with a heat sealing slide rail along the longitudinal direction; the first side heat sealing seat and the second side heat sealing seat are respectively slidably arranged on the heat sealing slide rail; the first side heat sealing seat is provided with a first heat sealing plate; the second side heat sealing seat is provided with a second heat sealing plate; The frame is provided with a heat sealing motor; a crank connecting rod assembly is provided between the heat sealing motor and the first side heat sealing seat; the heat sealing motor drives the first side heat sealing seat to move back and forth along the heat sealing slide rail through the crank connecting rod assembly; a synchronous reverse linkage assembly is provided between the first side heat sealing seat and the second side heat sealing seat; The loading conveyor belt and the discharging conveyor belt are both arranged in the transverse direction; the frame is provided with a fixed plate; the fixed plate is provided with a sliding plate that slides in the transverse direction; the discharging conveyor belt is arranged on the sliding plate; the fixed plate is provided with an adjusting cylinder; the output end of the adjusting cylinder is connected to the sliding plate.

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