Double-bag-bin bag feeding and packaging mechanism

Abstract

The utility model relates to the technical field of packaging, in particular to a double-bag-bin bag feeding and packaging mechanism which is characterized in that packaging bags are placed in a storage mechanism, then the packaging bags in the storage mechanism are taken out one by one through a conveying mechanism, bag openings of the taken-out packaging bags are opened, and then food is discharged into the packaging bags. The packaging bag is sealed through the sealing mechanism, so that the practicability of the equipment is improved; comprising a storage mechanism; the device further comprises a conveying mechanism and a sealing mechanism, and the conveying mechanism and the sealing mechanism are both installed on the storage mechanism. The storage mechanism is used for storing packaging bags, the conveying mechanism is used for conveying the packaging bags, and the sealing mechanism is used for sealing the packaging bags.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging, and in particular to a double-bag feeding bag packaging mechanism. Background Technology

[0002] After food production, in order to improve the convenience of food transportation and sales, packaging bags are generally transported and food is packaged using tools such as the fully automatic bag filling vacuum sealing packaging equipment disclosed in utility model patent CN209776922U and the new automatic bag filling packaging machine disclosed in utility model patent CN218840000U.

[0003] However, during use, it was found that the existing packaging equipment has a relatively complex structure, occupies a large area, has a high cost, and requires multiple transfers of packaging bags, which affects packaging efficiency and results in poor practicality. Therefore, there is an urgent need for a double-bag compartment bag feeding packaging mechanism to improve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a double-bag feeding bag packaging mechanism that places packaging bags in a storage mechanism, then uses a conveying mechanism to remove the packaging bags one by one from the storage mechanism, opens the opening of the removed packaging bags, discharges food into the packaging bags, and then seals the packaging bags using a sealing mechanism, thereby improving the practicality of the equipment.

[0005] This utility model discloses a double-bag feeding bag packaging mechanism, which includes a storage mechanism, a conveying mechanism and a sealing mechanism, both of which are installed on the storage mechanism.

[0006] The storage mechanism stores the packaging bags, the conveying mechanism conveys the packaging bags, and the sealing mechanism seals the packaging bags.

[0007] The packaging bags are placed in the storage mechanism, and then the conveying mechanism takes out the packaging bags one by one. The opening of the taken-out packaging bags is opened, and then the food is placed into the packaging bags. Finally, the packaging bags are sealed by the sealing mechanism, thereby improving the practicality of the equipment.

[0008] Preferably, the storage mechanism includes a frame, a support frame, two sets of packaging bag compartments, two sets of photoelectric sensors, and two sets of counterweight mechanisms. Both sets of packaging bag compartments are mounted on the frame via the support frame. The two sets of photoelectric sensors are respectively installed at the bottom of the two sets of packaging bag compartments, and the two sets of counterweight mechanisms are respectively installed at the top of the two sets of packaging bag compartments. Stacked packaging bags are placed into the two sets of packaging bag compartments. Simultaneously, the two sets of photoelectric sensors detect the height of the packaging bags in the two sets of packaging bag compartments. The counterweight mechanisms then compress the packaging bags downwards to ensure their neatness. When the packaging bags in the compartments are lower than the photoelectric sensors, the counterweight mechanisms reset, and the photoelectric sensors send a signal to the operator, reminding them to replenish the packaging bags in the compartments, thereby improving the practicality of the equipment.

[0009] Preferably, the counterweight mechanism includes a fixed plate, a winding shaft, a first motor, a connecting rope, and a counterweight block. The fixed plate is installed on the top of the packaging bag compartment, the winding shaft is rotatably installed on the top of the fixed plate, the first motor is fixedly installed on the top of the fixed plate, and the output shaft of the first motor is connected to one end of the winding shaft. The connecting rope is wound on the winding shaft, and the counterweight block is installed on one end of the connecting rope, with the counterweight block located below the fixed plate. By turning on the first motor, the winding shaft is driven to rotate, releasing the connecting rope and causing the counterweight block to move downward. The weight of the counterweight block presses down on the packaging bags in the packaging bag compartment, maintaining the neatness of the packaging bags in the compartment. When adding packaging bags to the compartment, the winding shaft reverses its direction, causing the counterweight block to reset, thereby improving the practicality of the equipment.

[0010] Preferably, the conveying mechanism includes a rotating shaft, a second motor, a gear ring, a second gear, two sets of support plates, multiple sets of first springs, multiple sets of first suction cups, two sets of racks, two sets of third motors, and two sets of second gears. The rotating shaft is rotatably mounted on the frame, the second motor is fixedly mounted on the front end of the frame, the gear ring is fitted onto the front part of the rotating shaft, the second gear is mounted on the output shaft of the second motor, and the top end of the second gear meshes with the bottom end of the gear ring. Both sets of support plates are slidably mounted on the rotating shaft. One end of each set of first springs is respectively mounted on the top of the left end of the two sets of support plates and the bottom of the right end of the two sets of support plates. The multiple sets of first suction cups are respectively mounted on the other end of each set of first springs. The two sets of racks are respectively mounted on the two sets of support plates, and the two sets of third motors are fixedly mounted on the frame. The device is fixedly mounted on the rotating shaft. Two sets of third gears are respectively mounted on the output shafts of two sets of third motors, and the two sets of third gears are respectively meshed with two sets of racks. When the second motor is turned on, it drives the rotating shaft to rotate counterclockwise through the meshing of the gear ring and the second gear. This causes the first suction cup at the bottom right end of the support plate to come close to the packaging bag at the bottom of the packaging bag compartment, and the first suction cup to hold the packaging bag at the bottom of the two packaging bag compartments. Then, the second motor runs in the opposite direction to stand the packaging bag upright with the bag opening facing upward. After the sealing mechanism seals the packaging bag, the third motor is turned on, and the third gear meshes with the rack to drive the support plate downward. The above steps are repeated to remove the remaining packaging bags in the packaging bag compartment one by one, thereby improving the practicality of the equipment.

[0011] Preferably, the rotating shaft has an internal exhaust channel, and the rear end of the rotating shaft has a rotary connection port. The support plate has two sets of suction channels and two sets of through holes inside, and the two sets of through holes are respectively connected to the two sets of suction channels of the support plate. The first suction cup at the top of the support plate communicates with the interior of one set of suction channels, and the first suction cup at the bottom of the support plate communicates with the interior of the other set of suction channels. The rear end of the rotating shaft is connected to a vacuum device. After sliding one end of the support plate under the rotating shaft, one set of through holes communicates with the exhaust channel inside the rotating shaft, expelling the air from the first set of suction cups. After sliding the other end of the support plate under the rotating shaft, the other set of through holes communicates with the exhaust channel inside the rotating shaft, expelling the air from the other set of first suction cups. This facilitates the first suction cups to adsorb the packaging bag, thereby improving the practicality of the equipment.

[0012] Preferably, the sealing mechanism includes a support rod, multiple sets of first limiting plates, multiple sets of second limiting plates, multiple sets of second suction cups, multiple sets of second springs, multiple sets of heat sealing plates, multiple sets of fourth motors, and multiple sets of lead screws. The support rod is slidably mounted on the frame. The multiple sets of first limiting plates are respectively mounted on the top left end and the bottom right end of the support plate. The multiple sets of second limiting plates are all mounted on the right end of the support rod. The multiple sets of second suction cups are respectively mounted on the right end of the support rod via multiple sets of second springs. The multiple sets of heat sealing plates are respectively mounted on the top end of the support rod, the top end of the support plate, and the bottom end of the support plate. The multiple sets of fourth motors are all mounted on the left end of the frame. One end of each set of lead screws is respectively mounted on the output shaft of the multiple sets of fourth motors, and the other end of each set of lead screws passes through the support rod and is rotatably connected to the right end of the frame. Furthermore, the surfaces of multiple sets of lead screws are threadedly connected to the middle of the support rod. After the packaging bag is erected by the reverse operation of the second gear, multiple sets of fourth motors move forward, driving the support rod to the right through multiple sets of lead screws. The left end of the packaging bag is then gripped by multiple sets of second suction cups. The packaging bag is then opened by the reverse operation of multiple sets of fourth motors, allowing the food to be placed into the packaging bag. The fourth motors then continue to move forward, causing the first suction cup to press against the second limiting plate, and the second suction cup to press against the first limiting plate. Simultaneously, the first and second springs contract, causing the heat-sealing plate at the top of the support rod and the heat-sealing plate at the top of the support plate to clamp the opening of the packaging bag. The opening of the packaging bag is then sealed by heating through the two sets of heat-sealing plates, thereby improving the practicality of the equipment.

[0013] Preferably, both the first spring and the second spring have a telescopic rod at their middle sections, thereby improving the stability of the first spring and the second spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the packaging bag is placed in the storage mechanism, and then the packaging bag is taken out one by one by the conveying mechanism. The opening of the taken-out packaging bag is opened, the food is then placed into the packaging bag, and the packaging bag is sealed by the sealing mechanism, thereby improving the practicality of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0017] Figure 3 This is a first axonometric enlarged structural diagram of the rotating shaft and support plate of this utility model;

[0018] Figure 4 This is a second axonometric enlarged structural diagram of the rotating shaft and support plate of this utility model;

[0019] Figure 5This is a first axonometric enlarged structural schematic diagram of the storage mechanism of this utility model;

[0020] Figure 6 This is a second axonometric enlarged structural schematic diagram of the storage mechanism of this utility model.

[0021] The following components are labeled in the attached diagram: 1. Frame; 2. Support frame; 3. Packaging bag compartment; 4. Photoelectric sensor; 5. Fixing plate; 6. Reeling shaft; 7. First motor; 8. Connecting rope; 9. Counterweight; 10. Rotating shaft; 11. Second motor; 12. Gear ring; 13. Second gear; 14. Support plate; 15. First spring; 16. First suction cup; 17. Rack; 18. Third motor; 19. Third gear; 20. Support rod; 21. First limiting plate; 22. Second limiting plate; 23. Second suction cup; 24. Second spring; 25. Heat sealing plate; 26. Fourth motor; 27. Lead screw. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0023] A double-bag feeding bag packaging mechanism includes a storage mechanism; it also includes a conveying mechanism and a sealing mechanism, both of which are mounted on the storage mechanism;

[0024] The storage mechanism stores the packaging bags, the conveying mechanism conveys the packaging bags, and the sealing mechanism seals the packaging bags.

[0025] The storage mechanism includes a frame 1, a support frame 2, two sets of packaging bag compartments 3, two sets of photoelectric sensors 4, and two sets of counterweight mechanisms. The two sets of packaging bag compartments 3 are mounted on the frame 1 via the support frame 2. The two sets of photoelectric sensors 4 are respectively installed at the bottom of the two sets of packaging bag compartments 3, and the two sets of counterweight mechanisms are respectively installed at the top of the two sets of packaging bag compartments 3.

[0026] The counterweight mechanism includes a fixed plate 5, a winding shaft 6, a first motor 7, a connecting rope 8, and a counterweight 9. The fixed plate 5 is installed on the top of the packaging bag compartment 3. The winding shaft 6 is rotatably installed on the top of the fixed plate 5. The first motor 7 is fixedly installed on the top of the fixed plate 5, and the output shaft of the first motor 7 is connected to one end of the winding shaft 6. The connecting rope 8 is wound on the winding shaft 6. The counterweight 9 is installed on one end of the connecting rope 8 and is located below the fixed plate 5.

[0027] The conveying mechanism includes a rotating shaft 10, a second motor 11, a gear ring 12, a second gear 13, two sets of support plates 14, multiple sets of first springs 15, multiple sets of first suction cups 16, two sets of racks 17, two sets of third motors 18, and two sets of third gears 19. The rotating shaft 10 is rotatably mounted on the frame 1, the second motor 11 is fixedly mounted on the front end of the frame 1, the gear ring 12 is fitted onto the front part of the rotating shaft 10, and the second gear 13 is mounted on the output shaft of the second motor 11, with the top end of the second gear 13 meshing with the bottom end of the gear ring 12. The support plates 14 are all slidably mounted on the rotating shaft 10. One end of multiple sets of first springs 15 is respectively mounted on the top of the left end of the two sets of support plates 14 and the bottom of the right end of the two sets of support plates 14. Multiple sets of first suction cups 16 are respectively mounted on the other end of the two sets of first springs 15. Two sets of racks 17 are respectively mounted on the two sets of support plates 14. Two sets of third motors 18 are all fixedly mounted on the rotating shaft 10. Two sets of third gears 19 are respectively mounted on the output shaft of the two sets of third motors 18, and the two sets of third gears 19 are respectively meshed with the two sets of racks 17.

[0028] The rotating shaft 10 has an exhaust channel inside and a rotating connection port at its rear end. The support plate 14 has two sets of air intake channels and two sets of through holes inside, and the two sets of through holes are respectively connected to the two sets of air intake channels of the support plate 14. The first suction cup 16 at the top of the support plate 14 is connected to the interior of one set of air intake channels, and the first suction cup 16 at the bottom of the support plate 14 is connected to the interior of the other set of air intake channels.

[0029] Stacked packaging bags are placed into two sets of packaging bag compartments 3. Simultaneously, two sets of photoelectric sensors 4 detect the height of the packaging bags in the two sets of packaging bag compartments 3. The first motor 7 is activated, driving the winding shaft 6 to rotate, releasing the connecting rope 8, and causing the counterweight 9 to move downwards. The weight of the counterweight 9 presses down on the packaging bags in the packaging bag compartments 3, maintaining the neatness of the packaging bags within 3. Then, the second motor 11 is activated, and through the meshing of the gear ring 12 and the second gear 13, it drives the rotating shaft 10 to rotate counterclockwise, causing the first suction cup 16 at the bottom right end of the support plate 14 to approach the inner bottom of the packaging bag compartment 3. The first suction cup 16 picks up the packaging bags at the bottom of the two sets of packaging bag compartments 3, and then the second motor 11 runs in reverse to stand the packaging bags upright with the bag opening facing upwards. After the sealing mechanism seals the packaging bags, the third motor 18 is turned on, and the third gear 19 meshes with the rack 17 to drive the support plate 14 downwards. The above steps are repeated to remove the remaining packaging bags in the packaging bag compartment 3 one by one. Then, the bag opening is opened by the conveying mechanism in conjunction with the sealing mechanism. After the food is placed into the packaging bag, the bag opening is sealed by the conveying mechanism in conjunction with the sealing mechanism, thereby improving the practicality of the equipment. Example 2

[0030] like Figures 1 to 6As shown, a double-bag feeding bag packaging mechanism includes a storage mechanism; it also includes a conveying mechanism and a sealing mechanism, both of which are mounted on the storage mechanism;

[0031] The storage mechanism stores the packaging bags, the conveying mechanism conveys the packaging bags, and the sealing mechanism seals the packaging bags.

[0032] The storage mechanism includes a frame 1, a support frame 2, two sets of packaging bag compartments 3, two sets of photoelectric sensors 4, and two sets of counterweight mechanisms. The two sets of packaging bag compartments 3 are mounted on the frame 1 via the support frame 2. The two sets of photoelectric sensors 4 are respectively installed at the bottom of the two sets of packaging bag compartments 3, and the two sets of counterweight mechanisms are respectively installed at the top of the two sets of packaging bag compartments 3.

[0033] The counterweight mechanism includes a fixed plate 5, a winding shaft 6, a first motor 7, a connecting rope 8, and a counterweight 9. The fixed plate 5 is installed on the top of the packaging bag compartment 3. The winding shaft 6 is rotatably installed on the top of the fixed plate 5. The first motor 7 is fixedly installed on the top of the fixed plate 5, and the output shaft of the first motor 7 is connected to one end of the winding shaft 6. The connecting rope 8 is wound on the winding shaft 6. The counterweight 9 is installed on one end of the connecting rope 8 and is located below the fixed plate 5.

[0034] The conveying mechanism includes a rotating shaft 10, a second motor 11, a gear ring 12, a second gear 13, two sets of support plates 14, multiple sets of first springs 15, multiple sets of first suction cups 16, two sets of racks 17, two sets of third motors 18, and two sets of third gears 19. The rotating shaft 10 is rotatably mounted on the frame 1, the second motor 11 is fixedly mounted on the front end of the frame 1, the gear ring 12 is fitted onto the front part of the rotating shaft 10, and the second gear 13 is mounted on the output shaft of the second motor 11, with the top end of the second gear 13 meshing with the bottom end of the gear ring 12. The support plates 14 are all slidably mounted on the rotating shaft 10. One end of multiple sets of first springs 15 is respectively mounted on the top of the left end of the two sets of support plates 14 and the bottom of the right end of the two sets of support plates 14. Multiple sets of first suction cups 16 are respectively mounted on the other end of the two sets of first springs 15. Two sets of racks 17 are respectively mounted on the two sets of support plates 14. Two sets of third motors 18 are all fixedly mounted on the rotating shaft 10. Two sets of third gears 19 are respectively mounted on the output shaft of the two sets of third motors 18, and the two sets of third gears 19 are respectively meshed with the two sets of racks 17.

[0035] The rotating shaft 10 has an exhaust channel inside and a rotating connection port at its rear end. The support plate 14 has two sets of air intake channels and two sets of through holes inside, and the two sets of through holes are respectively connected to the two sets of air intake channels of the support plate 14. The first suction cup 16 at the top of the support plate 14 is connected to the interior of one set of air intake channels, and the first suction cup 16 at the bottom of the support plate 14 is connected to the interior of the other set of air intake channels.

[0036] The sealing mechanism includes a support rod 20, multiple sets of first limiting plates 21, multiple sets of second limiting plates 22, multiple sets of second suction cups 23, multiple sets of second springs 24, multiple sets of heat sealing plates 25, multiple sets of fourth motors 26, and multiple sets of lead screws 27. The support rod 20 is slidably mounted on the frame 1. The multiple sets of first limiting plates 21 are respectively mounted on the top left end and the bottom right end of the support plate 14. The multiple sets of second limiting plates 22 are all mounted on the right end of the support rod 20. The multiple sets of second suction cups 23 are respectively connected via... Multiple sets of second springs 24 are installed on the right end of the support rod 20. Multiple sets of heat sealing plates 25 are respectively installed on the top end of the support rod 20, the top end of the support plate 14, and the bottom end of the support plate 14. Multiple sets of fourth motors 26 are all installed on the left end of the frame 1. One end of multiple sets of lead screws 27 is respectively installed on the output shaft of the multiple sets of fourth motors 26. The other end of multiple sets of lead screws 27 passes through the support rod 20 and is rotatably connected to the right end of the frame 1. The surfaces of multiple sets of lead screws 27 are all threadedly connected to the middle part of the support rod 20.

[0037] Both the first spring 15 and the second spring 24 are provided with telescopic rods in the middle.

[0038] Stacked packaging bags are placed into two sets of packaging bag compartments 3. Simultaneously, two sets of photoelectric sensors 4 detect the height of the packaging bags in the two sets of packaging bag compartments 3. The first motor 7 is activated, driving the winding shaft 6 to rotate, releasing the connecting rope 8, and causing the counterweight 9 to move downwards. The weight of the counterweight 9 presses down on the packaging bags in the packaging bag compartments 3, maintaining the neatness of the packaging bags. Then, the second motor 11 is activated, driving the rotating shaft 10 to rotate counterclockwise via the meshing of the gear ring 12 and the second gear 13. This causes the first suction cup 16 at the bottom right end of the support plate 14 to approach the packaging bags at the bottom of the packaging bag compartments 3, and the first suction cup 16 to adhere to the packaging bags at the bottom of the two sets of packaging bag compartments 3. The second motor 11 then reverses direction, standing the packaging bags upright with the bag openings facing upwards. Multiple sets of fourth motors 26 move forward, driving multiple sets of lead screws 27, causing the support rod 20 to move to the right, and multiple sets of second suction cups 23 to adhere to the bags. The left end of the bag is opened by multiple sets of fourth motors 26 running in reverse, and the food is then placed into the bag. After that, the fourth motors 26 continue to run in the forward direction, causing the first suction cup 16 to squeeze the second limiting plate 22 and the second suction cup 23 to squeeze the first limiting plate 21. At the same time, the first spring 15 and the second spring 24 contract, causing the heat sealing plate 25 at the top of the support rod 20 and the heat sealing plate 25 at the top of the support plate 14 to clamp the bag opening. The two sets of heat sealing plates 25 heat and seal the bag opening. After the sealing mechanism seals the bag, the third motor 18 is turned on, and the third gear 19 meshes with the rack 17 to drive the support plate 14 downward. The above steps are repeated to remove the remaining bags in the bag compartment 3 one by one. The bag opening is then opened by the conveying mechanism in conjunction with the sealing mechanism. After the food is placed into the bag, the bag opening is sealed by the conveying mechanism in conjunction with the sealing mechanism, thereby improving the practicality of the equipment.

[0039] The photoelectric sensor 4, first motor 7, second motor 11, third motor 18 and fourth motor 26 of the double-bag feeding packaging mechanism of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A double-bag feeding and packaging mechanism, comprising a storage mechanism; characterized in that, It also includes a conveying mechanism and a sealing mechanism, both of which are mounted on the storage mechanism; The storage mechanism stores the packaging bags, the conveying mechanism conveys the packaging bags, and the sealing mechanism seals the packaging bags. The storage mechanism includes a frame (1), a support frame (2), two sets of packaging bag compartments (3), two sets of photoelectric sensors (4), and two sets of counterweight mechanisms. The two sets of packaging bag compartments (3) are installed on the frame (1) through the support frame (2). The two sets of photoelectric sensors (4) are respectively installed at the bottom of the two sets of packaging bag compartments (3), and the two sets of counterweight mechanisms are respectively installed at the top of the two sets of packaging bag compartments (3). The conveying mechanism includes a rotating shaft (10), a second motor (11), a gear ring (12), a second gear (13), two sets of support plates (14), multiple sets of first springs (15), multiple sets of first suction cups (16), two sets of racks (17), two sets of third motors (18), and two sets of third gears (19). The rotating shaft (10) is rotatably mounted on the frame (1), the second motor (11) is fixedly mounted on the front end of the frame (1), the gear ring (12) is fitted onto the front part of the rotating shaft (10), and the second gear (13) is mounted on the output shaft of the second motor (11), with the top end of the second gear (13) meshing with the bottom end of the gear ring (12). The connection is as follows: both sets of support plates (14) are slidably mounted on the rotating shaft (10); one end of multiple sets of first springs (15) is respectively mounted on the top of the left end of the two sets of support plates (14) and the bottom of the right end of the two sets of support plates (14); multiple sets of first suction cups (16) are respectively mounted on the other end of the two sets of first springs (15); two sets of racks (17) are respectively mounted on the two sets of support plates (14); two sets of third motors (18) are fixedly mounted on the rotating shaft (10); two sets of third gears (19) are respectively mounted on the output shaft of the two sets of third motors (18); and the two sets of third gears (19) are respectively meshed with the two sets of racks (17). The sealing mechanism includes a support rod (20), multiple sets of first limiting plates (21), multiple sets of second limiting plates (22), multiple sets of second suction cups (23), multiple sets of second springs (24), multiple sets of heat sealing plates (25), multiple sets of fourth motors (26), and multiple sets of lead screws (27). The support rod (20) is slidably mounted on the frame (1). The multiple sets of first limiting plates (21) are respectively mounted on the top left end and the bottom right end of the support plate (14). The multiple sets of second limiting plates (22) are all mounted on the right end of the support rod (20). The multiple sets of second suction cups (23) are respectively mounted on the top left end and the bottom right end of the support plate (14). Multiple sets of second springs (24) are installed on the right end of the support rod (20), multiple sets of heat sealing plates (25) are respectively installed on the top end of the support rod (20), the top end of the support plate (14) and the bottom end of the support plate (14), multiple sets of fourth motors (26) are all installed on the left end of the frame (1), one end of multiple sets of lead screws (27) is respectively installed on the output shaft of multiple sets of fourth motors (26), the other end of multiple sets of lead screws (27) passes through the support rod (20) and is rotatably connected to the right end of the frame (1), and the surface of multiple sets of lead screws (27) is threaded to the middle of the support rod (20).

2. The double-bag feeding and packaging mechanism as described in claim 1, characterized in that, The counterweight mechanism includes a fixed plate (5), a winding shaft (6), a first motor (7), a connecting rope (8), and a counterweight (9). The fixed plate (5) is installed on the top of the packaging bag compartment (3). The winding shaft (6) is rotatably installed on the top of the fixed plate (5). The first motor (7) is fixedly installed on the top of the fixed plate (5), and the output shaft of the first motor (7) is connected to one end of the winding shaft (6). The connecting rope (8) is wound on the winding shaft (6). The counterweight (9) is installed on one end of the connecting rope (8) and is located below the fixed plate (5).

3. The double-bag feeding and packaging mechanism as described in claim 1, characterized in that, The rotating shaft (10) has an exhaust channel inside, and the rear end of the rotating shaft (10) has a rotating connection port. The support plate (14) has two sets of air intake channels and two sets of through holes inside, and the two sets of through holes are respectively connected to the two sets of air intake channels of the support plate (14). The first suction cup (16) at the top of the support plate (14) is connected to the interior of one set of air intake channels, and the first suction cup (16) at the bottom of the support plate (14) is connected to the interior of the other set of air intake channels.

4. The double-bag feeding and packaging mechanism as described in claim 1, characterized in that, Both the first spring (15) and the second spring (24) have telescopic rods in the middle.

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