Bag opening edge sealing device and method for puffed food packaging

Abstract

The invention relates to the technical field of food packaging, and particularly discloses a bag opening edge sealing device and method for puffed food packaging, the bag opening edge sealing device comprises a workbench and a self-standing bag body, and further comprises a conveying mechanism arranged on the workbench and used for conveying and opening a self-standing bag; a self-standing pouch body is placed on a mounting table through a conveying mechanism, then a conveying table is driven to rotate, when the conveying table rotates, the mounting table can be driven to rotate to the position below a putting mechanism, and when the mounting table rotates, a connecting gear behind the mounting table can be driven by a half gear on a driving column to rotate, so that a two-way lead screw in the mounting table is driven to rotate; when the two-way lead screw rotates, the two sets of triangular plates can be driven to move towards the two sides, due to the fact that the triangular plates are inserted into the bottom of the self-standing bag body, the bottom of the self-standing bag body can be opened when the triangular plates move, follow-up food bagging is facilitated, and packaging and edge sealing of the self-standing bag body can be facilitated through the mounting table and other assemblies.

Description

Technical Field

[0001] The present invention relates to the technical field of food packaging, and specifically provides a bag mouth edge-sealing device and method for puffed food packaging. Background Art

[0002] Puffed food is a kind of snack food made from grains, beans or potatoes as raw materials, and its volume is significantly increased through the puffing process, having a puffing degree. After the production of puffed food, it needs to be packaged and sealed. In the packaging field, a sealing machine is often used to seal the packaging bag.

[0003] A food packaging device disclosed in the publication number CN208021783U includes a base. A support column is fixedly connected to the upper end of the base. A hopper device is fixedly connected to the left end of the support column. A sealing device is fixedly connected to the right end of the support column. The sealing device is fixedly connected to a stepping device. The hopper device includes a support plate, a motor, a cam, a support rod, a sliding sleeve, a first spring, a limiting ring, a connecting rod and a hopper. The support plate is fixedly connected to the support column. A motor is fixedly connected to the upper end of the support plate. The plug of the motor is plugged into an external power supply. The end of the rotating shaft of the motor is fixedly sleeved with a cam. This food packaging device can enable granular food to smoothly fall from the hopper into the packaging bag by using the hopper device, without the need to pour the food into the packaging bag with a shovel, so that workers can hold the bag with both hands to avoid food spilling during packaging, improving the packaging efficiency.

[0004] In the prior art, the above device uses a hopper device to quickly package food. However, it is found in the packaging process that when bagging, the staff needs to manually open the packaging bag in advance and put it on the bottom of the feeding hopper. Although it avoids food spilling, it cannot achieve automation. And after working for a long time, the staff will inevitably get tired, and the working efficiency will be reduced in the tired state. At the same time, there are many types of packaging bags. Most of the packaging machines used in the market are suitable for three-side sealed bags or back-sealed bags. When opening, only the opening at the top of the three-side sealed bag or back-sealed bag needs to be opened. For a stand-up bag, which improves the aesthetics, its bottom also needs to be opened. On the one hand, it is convenient for the stand-up bag body to stand, and on the other hand, it is convenient for food feeding. However, traditional packaging machines generally do not have a mechanism for opening the bottom, resulting in more trouble in packaging stand-up bags. And most edge-sealing devices mostly use air cylinders for driving. After using the air cylinder for a period of time, it needs to be maintained. The oil seeping out of the air cylinder after maintenance will contaminate the food, making the food hygiene fail to meet the standards. Summary of the Invention

[0005] The purpose of the present invention is to provide a bag mouth edge-sealing device and method for puffed food packaging, and solve the following technical problems: (1) How to quickly package and achieve automation; (2) How to package the stand-up pouch; (3) How to avoid the cylinder affecting food hygiene.

[0006] The object of the present invention can be achieved by the following technical solutions: A bag mouth edge-sealing device for packaging puffed food, including a workbench and a stand-up pouch body, further including: A conveying mechanism, arranged on the workbench, for conveying and opening the stand-up pouch; A feeding mechanism, arranged on one side of the conveying mechanism, for feeding food into the stand-up pouch body; An edge-sealing mechanism, arranged on the workbench, for edge-sealing the stand-up pouch body; A transmission mechanism, arranged on the workbench, for automatically conveying the stand-up pouch body; A blanking channel is arranged on the workbench; the blanking channel is arranged below the conveying mechanism.

[0007] Further, the conveying mechanism includes a conveying table and a driving column; the driving column is rotatably connected to the workbench; one end of the driving column away from the workbench is fixedly connected to the conveying table; a semi-gear is fixedly connected to the driving column; a fixed column is fixedly connected to the bottom of the conveying table; one end of the fixed column away from the conveying table is fixedly connected to an installation table; a bidirectional lead screw is rotatably connected inside the installation table; a triangular plate is threadedly connected to the bidirectional lead screw; there are two groups of triangular plates; a transmission rod is rotatably connected to the side wall of the installation table; the output end of the transmission rod is fixedly connected to the input end of the bidirectional lead screw; one end of the transmission rod away from the installation table is fixedly connected to a connecting gear; the connecting gear is movably engaged with the semi-gear; there are four groups of installation tables; an upper extrusion bin and a lower extrusion bin are arranged at the bottom of the conveying table; the upper extrusion bin and the lower extrusion bin are arranged on both sides of the installation table; an extrusion lead screw is rotatably connected inside the upper extrusion bin; a gear one is rotatably connected to the side wall of the upper extrusion bin; the output end of the gear one is fixedly connected to the input end of the extrusion lead screw; a gear two is rotatably connected to the top of the upper extrusion bin; the gear two is meshed with the gear one; a rack one and a rack two are rotatably connected to the driving column; the rack one and the rack two are movably engaged with the gear two; an extrusion rod is threadedly connected to the extrusion lead screw; one end of the extrusion rod away from the extrusion lead screw is fixedly connected to an extrusion plate; the extrusion plate is U-shaped; the structure of the lower extrusion bin is the same as that of the upper extrusion bin; there are multiple groups of the upper extrusion bin and the lower extrusion bin; the rack one is arranged lower than the rack two; the lower extrusion bin is arranged lower than the upper extrusion bin.

[0008] Further, the transmission mechanism includes a placement table and a driving base; the self-standing bag body is placed inside the placement table; the driving base is fixedly connected to the workbench; the driving base is telescopic; one end of the driving base away from the workbench is hinged with a clamping rocker arm; one end of the clamping rocker arm away from the driving base is hinged with a suction cup; a telescopic spring is fixedly connected to the bottom of the placement table; one end of the telescopic spring away from the placement table is fixedly connected to a lower top plate; an upper top plate is fixedly connected to the top of the placement table; the self-standing bag body is horizontally placed between the upper top plate and the lower top plate.

[0009] Further, the feeding mechanism includes a vertical plate; the vertical plate is fixedly connected to the workbench; a connecting bridge is fixedly connected to the side wall of the vertical plate; a feeding bin is arranged below the connecting bridge; the feeding bin is fixedly connected to the vertical plate; a stirrer is rotatably connected to the bottom of the connecting bridge; the stirrer is arranged inside the feeding bin; a notch is formed in the feeding bin; a feeding pipe is fixedly connected to the bottom of the feeding bin; the feeding pipe is arranged above the conveying table; a stirring motor is fixedly connected to the connecting bridge; the stirrer is driven by the stirring motor.

[0010] Further, the edge-sealing mechanism includes a telescopic cylinder; the telescopic cylinder is fixedly connected to the workbench; one end of the telescopic cylinder away from the workbench is fixedly connected to a driver; a connecting plate is fixedly connected to the bottom of the driver; a edge-sealing lead screw is rotatably connected inside the connecting plate; a moving plate is threadedly connected to the edge-sealing lead screw; there are two groups of moving plates, which are arranged in a mirror image; one end of the moving plate away from the edge-sealing lead screw is fixedly connected to an edge-sealer; two groups of air pipes are fixedly connected to the side wall of the edge-sealer; one end of the air pipe away from the edge-sealer is fixedly connected to the driver; a lifting gear is rotatably connected to the side wall of the connecting plate; the output end of the lifting gear is fixedly connected to the input end of the edge-sealing lead screw; an edge-sealing rack is fixedly connected to the conveying table; the lifting gear is movably engaged with the edge-sealing rack.

[0011] Further, a blanking motor is fixedly connected to the workbench; a blanking rocker arm is rotatably connected to the blanking motor; the blanking rocker arm is arranged on one side of the blanking channel.

[0012] Further, the semi-gear teeth are arranged near the placement table.

[0013] A method for sealing the bag mouth of puffed food packaging includes the following steps: S1, first place the self-standing bag body inside the placement table. Before placement, the staff needs to manually squeeze the bottom of the self-standing bag body. Since the bottom of the self-standing bag body is a double-sided structure, squeezing will cause a gap at the bottom. Then, the self-standing bag body is adsorbed onto the installation table through components such as a suction cup. S2, when it reaches the installation table, since a gap has been squeezed out at the bottom of the self-supporting bag body, when it is placed, the triangular plate on the installation table will be inserted into the gap, and then the two sides will be limited by the squeezing plate to make it vertical, and then the conveying table will be driven to rotate, and the self-supporting bag body and the installation table will be rotated to the bottom of the delivery bin; S3, when rotating, the bottom and top of the stand-up bag body are stretched open by the triangular plate and the extrusion plate to facilitate the delivery of food. After delivery, it is rotated again to the bottom of the edge sealer, and the edge sealer is used to seal the stand-up bag body, and finally it moves to the unloading channel for unloading.

[0014] Beneficial effects of the present invention: The present invention places the stand-up bag body on the mounting table through a transmission mechanism, and then drives the conveying table to rotate. When the conveying table rotates, it will drive the mounting table to rotate below the delivery mechanism. While the mounting table rotates, the connecting gear at the rear of the mounting table will be driven to rotate by the half gear on the driving column, thereby driving the bidirectional screw in the mounting table to rotate. When the bidirectional screw rotates, it will drive two sets of triangular plates to move to both sides. Since the triangular plates are inserted into the bottom of the stand-up bag body, the bottom of the stand-up bag body can be opened during movement, thereby facilitating the subsequent bagging of food. Through the mounting table and other components, the packaging and edge sealing of the stand-up bag body can be facilitated.

[0015] The present invention places the stand-up bag body into a transmission mechanism. Before placement, the bottom of the stand-up bag body needs to be manually knocked and squeezed to ensure that a gap appears at the bottom. The stand-up bag body is then moved to the conveying mechanism via the transmission mechanism. After the bottom and the top of the stand-up bag body are stretched open by the conveying mechanism, food is put into the stand-up bag body through a putting mechanism. The edge sealing operation is then performed. After the edge sealing is completed, the food is discharged through a feeding channel. Through the joint work of multiple groups of components, automated edge sealing operation can be achieved.

[0016] The gear and rack in the present invention are made of plastic material, do not need maintenance in the later stage, and can improve food hygiene.

[0017] (4) When the stand-up bag body reaches below the edge sealer, the telescopic cylinder is driven to descend. When descending, the lifting gear will mesh with the edge sealing rack and drive the lifting gear to rotate during the descent process, thereby driving the edge sealing screw to rotate. When rotating, the two sets of edge sealers will be driven to merge. When merging, the edge sealers have reached the stand-up bag body, thereby realizing the edge sealing work. The air pipes on both sides can work when nitrogen filling and edge sealing are performed, and the air pipes do not need to be used for the packaging of the stand-up bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the workbench in the present invention; Figure 2It is a schematic diagram of the overall structure of the blanking rocker arm in the present invention; Figure 3 It is a schematic diagram of the overall structure of the edge-sealing rack in the present invention; Figure 4 It is a schematic diagram of the overall structure of the conveying table in the present invention; Figure 5 It is a schematic diagram of the overall structure of the installation table in the present invention; Figure 6 It is a schematic diagram of the overall structure of the extrusion plate in the present invention; Figure 7 It is a schematic diagram of the overall structure of the edge-sealing mechanism in the present invention; Figure 8 It is a schematic diagram of the overall structure of the placement table in the present invention; Figure 9 It is a sectional view of the overall structure of the placement table in the present invention; Figure 10 It is a schematic diagram of the overall structure of the feeding mechanism in the present invention; Figure 11 It is a schematic diagram of the overall structure of the first rack and the second rack in the present invention; Figure 12 It is a schematic diagram of the overall structure of the half gear in the present invention.

[0020] Description of the drawings: 1. Workbench; 11. Blanking rocker arm; 111. Blanking motor; 12. Blanking channel; 2. Conveying mechanism; 21. Conveying table; 211. Edge-sealing rack; 22. Installation table; 221. Bidirectional lead screw; 222. Triangular plate; 223. Transmission rod; 224. Connecting gear; 225. Fixed column; 23. Upper extrusion bin; 231. Extrusion lead screw; 232. Gear one; 233. Gear two; 234. Extrusion rod; 235. Extrusion plate; 236. Lower extrusion bin; 24. Driving column; 241. Half gear; 242. First rack; 243. Second rack; 3. Feeding mechanism; 31. Vertical plate; 32. Connecting bridge; 33. Feeding bin; 331. Notch; 332. Feeding pipe; 34. Stirrer; 35. Stirring motor; 4. Edge-sealing mechanism; 41. Telescopic cylinder; 42. Driver; 421. Air pipe; 43. Connecting plate; 44. Edge-sealer; 45. Edge-sealing lead screw; 46. Lifting gear; 47. Moving plate; 5. Transmission mechanism; 51. Placement table; 52. Telescopic spring; 53. Lower top plate; 54. Upper top plate; 55. Driving base; 56. Clamping rocker arm; 57. Suction cup; 6. Self-standing bag body. Detailed implementation manners

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-12 As shown, the present application provides a bag mouth edge-sealing device for puffed food packaging, including a workbench 1 and a stand-up bag body 6, and further including: A conveying mechanism 2, arranged on the workbench 1, for conveying and opening the stand-up bag. A feeding mechanism 3, arranged on one side of the conveying mechanism 2, for feeding food into the stand-up bag body 6. An edge-sealing mechanism 4, arranged on the workbench 1, for edge-sealing the stand-up bag body 6. A transmission mechanism 5, arranged on the workbench 1, for automatically conveying the stand-up bag body 6. A blanking channel 12 is arranged on the workbench 1; the blanking channel 12 is arranged below the conveying mechanism 2; During operation, in the prior art, the above device uses a hopper device to quickly package food. However, it is found that during bagging, workers need to manually open the packaging bag in advance and put it on the bottom of the feed hopper. Although this avoids food spillage, it cannot achieve automation. Moreover, after working for a long time, workers will inevitably get tired, and their working efficiency will decrease in a tired state. At the same time, there are many types of packaging bags. Most of the packaging machines used in the market are suitable for three-side sealed bags or back-sealed bags. When opening, only the opening at the top of the three-side sealed bag or back-sealed bag needs to be opened. For a stand-up bag, which improves the aesthetics, its bottom also needs to be opened. On the one hand, it is convenient for the stand-up bag body 6 to stand, and on the other hand, it is convenient for food feeding. However, traditional packaging machines generally do not have a mechanism for opening the bottom, resulting in more trouble in packaging stand-up bags. Moreover, most of the edge-sealing devices use air cylinders for driving. After the air cylinders are used for a period of time, they need to be maintained. The oil seeping out of the air cylinders after maintenance will contaminate the food, making the food hygiene fail to meet the standards. To prevent such incidents from occurring, first, place the stand-up bag body 6 into the transmission mechanism 5. Before placing, the bottom of the stand-up bag body 6 needs to be manually tapped and squeezed to ensure that there are gaps at the bottom. Then, the transmission mechanism 5 moves the stand-up bag body 6 to the conveying mechanism 2. After the bottom and top of the stand-up bag body 6 are opened by the conveying mechanism 2, food is put into the stand-up bag body 6 through the feeding mechanism 3. Subsequently, edge-sealing work is carried out. After the edge-sealing is completed, it is discharged through the blanking channel 12. In the present invention, the components in contact with food are all gears and lead screws, and the gears and lead screws are also made of plastic materials, which do not require subsequent maintenance, thus improving food hygiene.

[0023] Such as Figures 3-6As shown, the conveying mechanism 2 includes a conveying table 21 and a driving column 24; the driving column 24 is rotatably connected to the workbench 1; one end of the driving column 24 away from the workbench 1 is fixedly connected to the conveying table 21; a semi-gear 241 is fixedly connected to the driving column 24; a fixed column 225 is fixedly connected to the bottom of the conveying table 21; one end of the fixed column 225 away from the conveying table 21 is fixedly connected to a mounting table 22; a bidirectional lead screw 221 is rotatably connected inside the mounting table 22; triangular plates 222 are threadedly connected to the bidirectional lead screw 221; there are two groups of triangular plates 222; a transmission rod 223 is rotatably connected to the side wall of the mounting table 22; the output end of the transmission rod 223 is fixedly connected to the input end of the bidirectional lead screw 221; a connecting gear 224 is fixedly connected to the end of the transmission rod 223 away from the mounting table 22; the connecting gear 224 is movably engaged with the semi-gear 241; there are four groups of mounting tables 22; an upper extrusion bin 23 and a lower extrusion bin 236 are arranged at the bottom of the conveying table 21; the upper extrusion bin 23 and the lower extrusion bin 236 are arranged on both sides of the mounting table 22; an extrusion lead screw 231 is rotatably connected inside the upper extrusion bin 23; a gear one 232 is rotatably connected to the side wall of the upper extrusion bin 23; the output end of the gear one 232 is fixedly connected to the input end of the extrusion lead screw 231; a gear two 233 is rotatably connected to the top of the upper extrusion bin 23; the gear two 233 is meshed with the gear one 232; a rack one 242 and a rack two 243 are rotatably connected to the driving column 24; the rack one 242 and the rack two 243 are movably engaged with the gear two 233; an extrusion rod 234 is threadedly connected to the extrusion lead screw 231; one end of the extrusion rod 234 away from the extrusion lead screw 231 is fixedly connected to an extrusion plate 235; the extrusion plate 235 is U-shaped; the structure of the lower extrusion bin 236 is the same as that of the upper extrusion bin 23; there are multiple groups of upper extrusion bins 23 and lower extrusion bins 236; the rack one 242 is arranged lower than the rack two 243; the lower extrusion bin 236 is arranged lower than the upper extrusion bin 23; During operation, the bottom of the stand-up pouch body 6 is a bilateral mechanism. When manually hitting, a gap is generated at the bottom of the stand-up pouch body 6. Subsequently, when the stand-up pouch body 6 is placed on the mounting table 22 through the transmission mechanism 5, two sets of triangular plates 222 on the mounting table 22 will be inserted into the gap at the bottom of the stand-up pouch body 6. At the same time, both sides of the stand-up pouch body 6 are limited and supported by the pressing plates 235 to prevent the stand-up pouch body 6 from falling. Subsequently, the conveying table 21 is driven to rotate. When the conveying table 21 rotates, it will drive the mounting table 22 to rotate under the feeding mechanism 3. While the mounting table 22 is rotating, the connecting gear 224 behind the mounting table 22 will be driven to rotate by the half gear 241 on the driving column 24, thereby driving the bidirectional lead screw 221 in the mounting table 22 to rotate. When the bidirectional lead screw 221 rotates, it will drive the two sets of triangular plates 222 to move towards both sides. Since the triangular plates 222 are inserted into the bottom of the stand-up pouch body 6, the bottom of the stand-up pouch body 6 can be expanded during movement, facilitating the subsequent bagging of food. At the same time, when the conveying table 21 drives the mounting table 22 to move, two sets of gear two 233 on the upper pressing chamber 23 and the lower pressing chamber 236 will also be driven to rotate by the rack one 242 and the rack two 243, thereby driving the pressing plate 235 to work by the gear one 232 and the pressing lead screw 231 to squeeze the top of the stand-up pouch body 6, thus expanding the stand-up pouch body 6 to facilitate food feeding. Moreover, the end of the pressing plate 235 close to the transmission mechanism 5 is shorter, and the end close to the conveying table 21 is longer, which can prevent the stand-up pouch body 6 from falling. It should be noted that the upper pressing chamber 23 and the lower pressing chamber 236 are not arranged on the same horizontal plane. The lower pressing chamber 236 is arranged below the upper pressing chamber 23. Therefore, the gear two 233 on the lower pressing chamber 236 is also arranged below, and the rack one 242 on the driving column 24 is also lower than the rack two 243. Therefore, the rack one 242 is movably engaged with the gear two 233 on the lower pressing chamber 236, and the rack two 243 is movably engaged with the gear two 233 on the upper pressing chamber 23. Since the rack one 242 and the rack two 243 are stationary when the driving column 24 rotates, in order to prevent repeated engagement with the gear two 233, they are staggeredly arranged. In this way, the moving distances of the upper pressing chamber 23 and the lower pressing chamber 236 are the same, and the number of turns of the pressing lead screw 231 driven by the gear two 233 is the same. Therefore, the squeezing amplitude of the stand-up pouch body 6 is the same. At the same time, as the name implies, the half gear 241 only has half a set of teeth on the gear, and the half gear 241 is a bevel gear. When the triangular plates 222 on the mounting table 22 are driven by the half gear 241 to expand the stand-up pouch, the movement of the triangular plates 222 will be stopped subsequently. The purpose is to prevent the stand-up pouch body 6 from shifting when the triangular plates 222 move, affecting subsequent edge sealing. That is, when moving from the transmission mechanism 5 to the feeding mechanism 3, there are teeth on the half gear 241. When moving towards the edge sealing mechanism 4, there are no teeth on the half gear 241. Then, there are teeth again when reaching the transmission mechanism 5 through the blanking channel 12. The purpose is to merge the two sets of triangular plates 222 and wait for the next stand-up pouch body 6.Moreover, there are four groups of installation platforms 22, which can carry out edge sealing work synchronously, improving the efficiency of edge sealing and realizing the automation of food packaging.

[0024] As Figure 8 and Figure 9 shown in the figure, the transmission mechanism 5 includes a placing table 51 and a driving base 55; the stand-up pouch body 6 is placed in the placing table 51; the driving base 55 is fixedly connected to the workbench 1; the driving base 55 is telescopic; one end of the driving base 55 away from the workbench 1 is hinged with a clamping rocker arm 56; one end of the clamping rocker arm 56 away from the driving base 55 is hinged with a suction cup 57; the bottom of the placing table 51 is fixedly connected with a telescopic spring 52; one end of the telescopic spring 52 away from the placing table 51 is fixedly connected with a lower top plate 53; the top of the placing table 51 is fixedly connected with an upper top plate 54; the stand-up pouch body 6 is horizontally placed between the upper top plate 54 and the lower top plate 53; During operation, the staff first squeezes and knocks on the stand-up pouch body 6 to open a small gap at the bottom of the stand-up pouch body 6, and then stacks it on the placing table 51. There are telescopic springs 52, an upper top plate 54 and a lower top plate 53 on the placing table 51. After the stand-up pouch body 6 is placed between the upper top plate 54 and the lower top plate 53 and is squeezed by the telescopic spring 52, the stand-up pouch body 6 can be in a tense state, which is convenient for the adsorption of the suction cup 57. During operation, the driving base 55 drives the clamping rocker arm 56 and the suction cup 57 to adsorb the stand-up pouch body 6, then places it on the installation platform 22, then returns to re-adsorb, and then places it on the next group of installation platforms 22 to realize automatic packaging. Among them, the driving base 55 is telescopic and can be set according to the size of the stand-up pouch body 6. The setting is manually set, and the setting components are not shown in the figure.

[0025] As Figure 1 shown in the figure, the feeding mechanism 3 includes a vertical plate 31; the vertical plate 31 is fixedly connected to the workbench 1; a connecting bridge 32 is fixedly connected to the side wall of the vertical plate 31; a feeding bin 33 is arranged below the connecting bridge 32; the feeding bin 33 is fixedly connected to the vertical plate 31; a stirrer 34 is rotatably connected to the bottom of the connecting bridge 32; the stirrer 34 is arranged in the feeding bin 33; a notch 331 is formed in the feeding bin 33; a feeding pipe 332 is fixedly connected to the bottom of the feeding bin 33; the feeding pipe 332 is arranged above the conveying table 21; a stirring motor 35 is fixedly connected to the connecting bridge 32; the stirrer 34 is driven by the stirring motor 35; During operation, when the stand-up pouch body 6 on the installation platform 22 reaches below the feeding bin 33, the stirring motor 35 drives the stirrer 34 to rotate, rotates the food to the notch 331, and then drops it into the stand-up pouch body 6 through the feeding pipe 332 at the bottom, so as to realize food bagging.

[0026] AsFigure 7 As shown in the figure, the edge-sealing mechanism 4 includes a telescopic air cylinder 41; the telescopic air cylinder 41 is fixedly connected to the workbench 1; one end of the telescopic air cylinder 41 away from the workbench 1 is fixedly connected with a driver 42; the bottom of the driver 42 is fixedly connected with a connecting plate 43; a sealing edge screw rod 45 is rotatably connected inside the connecting plate 43; a moving plate 47 is threadedly connected to the sealing edge screw rod 45; there are two groups of moving plates 47, which are arranged in a mirror image; one end of the moving plate 47 away from the sealing edge screw rod 45 is fixedly connected with a sealing edge device 44; a trachea 421 is fixedly connected to the side wall of the sealing edge device 44; there are two groups of tracheas 421; one end of the trachea 421 away from the sealing edge device 44 is fixedly connected with the driver 42; a lifting gear 46 is rotatably connected to the side wall of the connecting plate 43; the output end of the lifting gear 46 is fixedly connected to the input end of the sealing edge screw rod 45; a sealing edge rack 211 is fixedly connected to the conveying table 21; the lifting gear 46 is movably engaged with the sealing edge rack 211; During operation, when the stand-up pouch body 6 reaches below the sealing edge device 44, the telescopic air cylinder 41 is driven to descend. When descending, the lifting gear 46 will engage with the sealing edge rack 211, and the lifting gear 46 will be driven to rotate during the descending process, thereby driving the sealing edge screw rod 45 to rotate. When rotating, the two sealing edge devices 44 will be driven to merge. When merging, the sealing edge device 44 has reached the stand-up pouch body 6, thus realizing the edge-sealing work. And the two tracheas 421 on both sides can work during nitrogen-filled edge-sealing. The stand-up pouch packaging can not use the tracheas 421. At the same time, the sealing edge device 44 is driven by the lifting gear 46 and is made of plastic material like the sealing edge rack 211, abandoning the traditional air cylinder drive and improving food hygiene.

[0027] As Figure 2 As shown in the figure, a blanking motor 111 is fixedly connected to the workbench 1; a blanking swing arm 11 is rotatably connected to the blanking motor 111; the blanking swing arm 11 is arranged on one side of the blanking channel 12; During operation, when the stand-up pouch body 6 reaches the blanking channel 12, the blanking motor 111 drives the blanking swing arm 11 to rotate, and the stand-up pouch body 6 is pushed down from the installation table 22 by the blanking swing arm 11 and falls to the blanking channel 12 for discharging.

[0028] As Figure 12 As shown in the figure, the teeth of the half gear 241 are arranged near the placement table 51; During operation, being close to the placement table 51 can reposition the triangular plate 222.

[0029] Please refer to Figures 1-12 As shown in the figure, the present application provides a method for sealing the bag mouth for packaging puffed food, including the following steps: S1. First, place the stand-up pouch body 6 into the placement table 51. Before placement, the staff needs to manually squeeze the bottom of the stand-up pouch body 6. Since the bottom of the stand-up pouch body 6 is a double-sided structure, squeezing will cause a gap at the bottom. Subsequently, use components such as the suction cup 57 to adsorb the stand-up pouch body 6 onto the mounting table 22; S2. When it reaches the mounting table 22, since a gap has been squeezed out at the bottom of the stand-up pouch body 6, during placement, the triangular plate 222 on the mounting table 22 will insert into the gap. Subsequently, both sides are limited by the pressing plates 235 to make it vertical. Then, drive the conveying table 21 to rotate, and rotate the stand-up pouch body 6 and the mounting table 22 below the feeding bin 33; S3. During rotation, use the triangular plate 222 and the pressing plates 235 to expand the bottom and top of the stand-up pouch body 6 to facilitate the feeding of food. After feeding, rotate it again below the edge sealer 44, and use the edge sealer 44 to perform the edge sealing work on the stand-up pouch body 6. Finally, move it to the blanking channel 12 for blanking; During operation, first place the stand-up pouch body 6 into the placement table 51. Before placement, the staff needs to manually squeeze the bottom of the stand-up pouch body 6. Since the bottom of the stand-up pouch body 6 is a double-sided structure, squeezing will cause a gap at the bottom. Subsequently, use components such as the suction cup 57 to adsorb the stand-up pouch body 6 onto the mounting table 22. When it reaches the mounting table 22, since a gap has been squeezed out at the bottom of the stand-up pouch body 6, during placement, the triangular plate 222 on the mounting table 22 will insert into the gap. Subsequently, both sides are limited by the pressing plates 235 to make it vertical. Then, drive the conveying table 21 to rotate, and rotate the stand-up pouch body 6 and the mounting table 22 below the feeding bin 33. During rotation, use the triangular plate 222 and the pressing plates 235 to expand the bottom and top of the stand-up pouch body 6 to facilitate the feeding of food. After feeding, rotate it again below the edge sealer 44, and use the edge sealer 44 to perform the edge sealing work on the stand-up pouch body 6. Finally, move it to the blanking channel 12 for blanking.

[0030] Working principle of the present invention: The bottom of the stand-up pouch body 6 is a bilateral mechanism. When manually striking, a gap is generated at the bottom of the stand-up pouch body 6. Subsequently, when the stand-up pouch body 6 is placed on the mounting table 22 through the transmission mechanism 5, two triangular plates 222 on the mounting table 22 will be inserted into the gap at the bottom of the stand-up pouch body 6. At the same time, both sides of the stand-up pouch body 6 are limited and supported by the pressing plates 235 to prevent the stand-up pouch body 6 from falling down. Subsequently, the conveying table 21 is driven to rotate. When the conveying table 21 rotates, it will drive the mounting table 22 to rotate under the feeding mechanism 3. While the mounting table 22 is rotating, the connecting gear 224 behind the mounting table 22 will be driven to rotate by the semi-gear 241 on the driving column 24, thereby driving the bidirectional lead screw 221 in the mounting table 22 to rotate. When the bidirectional lead screw 221 rotates, it will drive the two triangular plates 222 to move towards both sides. Since the triangular plates 222 are inserted into the bottom of the stand-up pouch body 6, the bottom of the stand-up pouch body 6 can be expanded during the movement, facilitating the subsequent bagging of food. At the same time, when the conveying table 21 drives the mounting table 22 to move, the two gear pairs 233 on the upper pressing chamber 23 and the lower pressing chamber 236 will also be driven to rotate by the rack 1 242 and the rack 2 243, thereby driving the pressing plates 235 to work by using the gear 1 232 and the pressing lead screw 231 to squeeze the top of the stand-up pouch body 6, thus expanding the stand-up pouch body 6 to facilitate food feeding. Moreover, the end of the pressing plate 235 close to the transmission mechanism 5 is shorter, and the end close to the conveying table 21 is longer, which can prevent the stand-up pouch body 6 from falling. It should be noted that the upper pressing chamber 23 and the lower pressing chamber 236 are not arranged on the same horizontal plane. The lower pressing chamber 236 is arranged below the upper pressing chamber 23. Therefore, the gear pair 233 on the lower pressing chamber 236 is also arranged below, and the rack 1 242 on the driving column 24 is also lower than the rack 2 243. Therefore, the rack 1 242 is movably engaged with the gear pair 233 on the lower pressing chamber 236, and the rack 2 243 is movably engaged with the gear pair 233 on the upper pressing chamber 23. Since the rack 1 242 and the rack 2 243 are stationary when the driving column 24 rotates, in order to prevent repeated engagement with the gear pair 233, they are arranged staggeredly. In this way, the moving distances of the upper pressing chamber 23 and the lower pressing chamber 236 are the same, and the number of turns of the pressing lead screw 231 driven by the gear pair 233 is the same. Therefore, the squeezing amplitude of the stand-up pouch body 6 is the same. At the same time, as the name implies, the semi-gear 241 only has half a set of teeth on the gear, and the semi-gear 241 is a bevel gear. When the triangular plates 222 on the mounting table 22 are driven by the semi-gear 241 to expand the stand-up pouch, the movement of the triangular plates 222 will be stopped subsequently. The purpose is to prevent the stand-up pouch body 6 from shifting when the triangular plates 222 move, affecting subsequent edge sealing. That is, when moving from the transmission mechanism 5 to the feeding mechanism 3, there are teeth on the semi-gear 241. When moving towards the edge sealing mechanism 4, there are no teeth on the semi-gear 241. Then, when reaching the transmission mechanism 5 through the feeding channel 12, there are teeth again. The purpose is to combine the two triangular plates 222 and wait for the next stand-up pouch body 6.Moreover, there are four groups of installation platforms 22, which can carry out edge banding work synchronously, improving the efficiency of edge banding and realizing the automation of food packaging.

[0031] The above has described an embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equal changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A bag mouth edge-sealing device for puffed food packaging, comprising a workbench (1) and a stand-up bag body (6), characterized in that, It further includes: A conveying mechanism (2), which is arranged on the workbench (1) and is used for conveying and opening the self-supporting bag; A feeding mechanism (3), which is arranged on one side of the conveying mechanism (2) and is used for feeding food into the self-supporting bag body (6); A sealing edge mechanism (4), which is arranged on the workbench (1) and is used for sealing the edge of the self-supporting bag body (6); A transmission mechanism (5), which is arranged on the workbench (1) and is used for automatically conveying the self-supporting bag body (6); A blanking channel (12) is arranged on the workbench (1); the blanking channel (12) is arranged below the conveying mechanism (2).

2. The bag mouth edge-sealing device for puffed food packaging according to claim 1, characterized in that, The conveying mechanism (2) includes a conveying table (21) and a driving column (24); the driving column (24) is rotatably connected to the workbench (1); one end of the driving column (24) away from the workbench (1) is fixedly connected to the conveying table (21); a semi-gear (241) is fixedly connected to the driving column (24); a fixed column (225) is fixedly connected to the bottom of the conveying table (21); one end of the fixed column (225) away from the conveying table (21) is fixedly connected to a mounting table (22); a bidirectional lead screw (221) is rotatably connected inside the mounting table (22); a triangular plate (222) is threadedly connected to the bidirectional lead screw (221); there are two sets of the triangular plates (222); a transmission rod (223) is rotatably connected to the side wall of the mounting table (22); the output end of the transmission rod (223) is fixedly connected to the input end of the bidirectional lead screw (221); one end of the transmission rod (223) away from the mounting table (22) is fixedly connected to a connecting gear (224); the connecting gear (224) is movably engaged with the semi-gear (241); there are four sets of the mounting tables (22); an upper extrusion bin (23) and a lower extrusion bin (236) are arranged at the bottom of the conveying table (21); the upper extrusion bin (23) and the lower extrusion bin (236) are arranged on both sides of the mounting table (22); an extrusion lead screw (231) is rotatably connected inside the upper extrusion bin (23); a first gear (232) is rotatably connected to the side wall of the upper extrusion bin (23); the output end of the first gear (232) is fixedly connected to the input end of the extrusion lead screw (231); a second gear (233) is rotatably connected to the top of the upper extrusion bin (23); the second gear (233) is meshed with the first gear (232); a first rack (242) and a second rack (243) are rotatably connected to the driving column (24); the first rack (242) and the second rack (243) are movably engaged with the second gear (233); an extrusion rod (234) is threadedly connected to the extrusion lead screw (231); one end of the extrusion rod (234) away from the extrusion lead screw (231) is fixedly connected to an extrusion plate (235); the extrusion plate (235) is U-shaped; the structure of the lower extrusion bin (236) is the same as that of the upper extrusion bin (23); there are multiple sets of the upper extrusion bins (23) and the lower extrusion bins (236); the first rack (242) is arranged lower than the second rack (243); the lower extrusion bin (236) is arranged lower than the upper extrusion bin (23).

3. The bag mouth edge-sealing device for puffed food packaging according to claim 2, wherein, The transmission mechanism (5) includes a placement table (51) and a driving base (55); the self-supporting bag body (6) is placed in the placement table (51); the driving base (55) is fixedly connected to the workbench (1); the driving base (55) is telescopic; one end of the driving base (55) away from the workbench (1) is hinged with a material clamping rocker arm (56); one end of the material clamping rocker arm (56) away from the driving base (55) is hinged with a suction cup (57); a telescopic spring (52) is fixedly connected to the bottom of the placement table (51); one end of the telescopic spring (52) away from the placement table (51) is fixedly connected to a lower top plate (53); an upper top plate (54) is fixedly connected to the top of the placement table (51); the self-supporting bag body (6) is horizontally placed between the upper top plate (54) and the lower top plate (53).

4. A bag mouth edge-sealing device for puffed food packaging according to claim 3, characterized in that, The feeding mechanism (3) includes a vertical plate (31); the vertical plate (31) is fixedly connected to the workbench (1); a connecting bridge (32) is fixedly connected to the side wall of the vertical plate (31); a feeding bin (33) is arranged below the connecting bridge (32); the feeding bin (33) is fixedly connected to the vertical plate (31); a stirrer (34) is rotatably connected to the bottom of the connecting bridge (32); the stirrer (34) is arranged in the feeding bin (33); a notch (331) is formed in the feeding bin (33); a feeding pipe (332) is fixedly connected to the bottom of the feeding bin (33); the feeding pipe (332) is arranged above the conveying table (21); a stirring motor (35) is fixedly connected to the connecting bridge (32); the stirrer (34) is driven by the stirring motor (35).

5. A bag mouth edge-sealing device for puffed food packaging according to claim 4, characterized in that, The edge sealing mechanism (4) includes a telescopic cylinder (41); the telescopic cylinder (41) is fixedly connected to the workbench (1); one end of the telescopic cylinder (41) away from the workbench (1) is fixedly connected to a driver (42); a connecting plate (43) is fixedly connected to the bottom of the driver (42); a edge sealing lead screw (45) is rotatably connected to the connecting plate (43); a moving plate (47) is threadedly connected to the edge sealing lead screw (45); there are two groups of moving plates (47), which are arranged in a mirror image; one end of the moving plate (47) away from the edge sealing lead screw (45) is fixedly connected to an edge sealer (44); an air pipe (421) is fixedly connected to the side wall of the edge sealer (44); there are two groups of air pipes (421); one end of the air pipe (421) away from the edge sealer (44) is fixedly connected to the driver (42); a lifting gear (46) is rotatably connected to the side wall of the connecting plate (43); the output end of the lifting gear (46) is fixedly connected to the input end of the edge sealing lead screw (45); an edge sealing rack (211) is fixedly connected to the conveying table (21); the lifting gear (46) is movably engaged with the edge sealing rack (211).

6. The bag mouth edge-sealing device for puffed food packaging according to claim 5, characterized in that, A blanking motor (111) is fixedly connected to the workbench (1); a blanking rocker arm (11) is rotatably connected to the blanking motor (111); the blanking rocker arm (11) is arranged on one side of the blanking channel (12).

7. A bag mouth edge-sealing device for puffed food packaging according to claim 6, characterized in that, The teeth of the half gear (241) are arranged close to the placement platform (51).

8. A method for sealing the bag mouth of puffed food packaging, characterized in that, The following steps are involved: S1, first place the stand-up bag body (6) on the placement table (51). Before placing, the staff needs to manually squeeze the bottom of the stand-up bag body (6). Since the bottom of the stand-up bag body (6) is a double-sided structure, a gap will appear at the bottom during squeezing. Then, the stand-up bag body (6) is adsorbed onto the mounting table (22) by components such as a suction cup (57); S2, when the bag reaches the mounting platform (22), since a gap has been squeezed out of the bottom of the stand-up bag body (6), when the bag is placed, the triangular plate (222) on the mounting platform (22) will be inserted into the gap, and then the two sides will be limited by the squeezing plate (235) to make it vertical, and then the conveying platform (21) will be driven to rotate, so that the stand-up bag body (6) and the mounting platform (22) are rotated to the bottom of the delivery bin (33); S3, during the rotation, the bottom and top of the stand-up bag body (6) are stretched open by the triangular plate (222) and the squeezing plate (235) to facilitate the delivery of food. After delivery, the stand-up bag body (6) is rotated again to the bottom of the edge sealer (44), and the edge sealer (44) is used to seal the edge of the stand-up bag body (6). Finally, the stand-up bag body (6) is moved to the delivery channel (12) for delivery.

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