Bag picking and shooting mechanism

Abstract

The invention relates to the technical field of powder packaging machinery, in particular to a bag picking and shooting mechanism which comprises a mounting frame, a bag shooting device, a bag clamping device and a bag picking device are arranged at the bottom of the mounting frame, a first power unit is arranged corresponding to the bag clamping device and the bag picking device, and the first power unit controls linkage of the bag clamping device and the bag picking device. Bag opening expanding and clamping actions are cooperatively completed; a second power unit is arranged corresponding to the bag shooting device and drives the bag shooting device to shoot the packaging bags to the feeding pipe. By means of the packaging bag conveying device, packaging bags can be rapidly conveyed to each filling opening of the rotary packaging machine, manual bagging is avoided, the labor intensity of workers is reduced, the production efficiency is improved, and harm to the body health of the workers is avoided; the first power unit controls the bag clamping device and the bag picking device to be linked and cooperatively complete bag opening opening and clamping actions, the action synchronization rate of the bag clamping device and the bag picking device can be guaranteed, the equipment cost is reduced, and the space utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of powder packaging machinery, in particular to a bag picking and shooting mechanism. Background Art

[0002] Before the packaging bag is filled with materials through the packaging machine, it needs to be delivered by the bag picker. In the prior art, most of the rotary packaging machines are used. When this equipment is used, the opening of the packaging bag is usually opened and the bag mouth of the packaging bag is inserted into the feeding tube of the packaging machine, so as to fill the material into the packaging bag; at present, most of the bagging of domestic packaging machines is realized by manual bagging, which not only has high labor intensity for workers, but also has low production efficiency, which cannot meet the requirements of modern production. At the same time, due to the large amount of dust at the work site, the working environment is poor, which is not conducive to the health of workers. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a bag picking and shooting mechanism.

[0004] The technical solution adopted by the present invention to solve its technical problem is: A bag picking and shooting mechanism comprises a mounting frame, wherein a bag shooting device, a bag clamping device and a bag picking device are arranged at the bottom of the mounting frame, a power unit 1 is arranged corresponding to the bag clamping device and the bag picking device, the power unit 1 controls the bag clamping device and the bag picking device to work together to complete the bag opening and clamping actions; a power unit 2 is arranged corresponding to the bag shooting device, the power unit 2 drives the bag shooting device to shoot the packaging bag onto a feeding tube.

[0005] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: Through the present invention, the packaging bags can be quickly delivered to each filling port of the rotary packaging machine, which avoids manual bagging, reduces the labor intensity of workers, improves production efficiency, and avoids harm to the health of workers; the power unit controls the bag clamping device and the bag picking device to work together to complete the bag opening and clamping actions, which can ensure the synchronization rate of the bag clamping device and the bag picking device, reduce equipment costs, and improve space utilization.

[0006] Preferably, a further technical solution of the present invention is: Preferably, a connecting frame 1 and a connecting frame 2 are provided on the right side of the bottom of the mounting frame, with the connecting frame 2 in front and the connecting frame 1 in the back, and a second mounting plate is connected to the lower ends of the connecting frame 1 and the connecting frame 2; the bag shooting device includes a long fixed wheel group and an adjusting wheel group; the long fixed wheel group is installed on the second mounting plate, and includes a driving pulley and a passive pulley, and a plurality of supporting pulleys are arranged at intervals between the driving pulley and the passive pulley; a multi-V belt is installed on the driving pulley and the passive pulley; a power unit 2 is arranged on the connecting frame 2 and is connected to the driving pulley in transmission; a connecting frame 3 is provided on the left side of the bottom of the mounting frame corresponding to the connecting frame 2, and a third mounting plate is connected to the lower end of the connecting frame 3, and the adjusting wheel group includes a plurality of bag clamping wheels 1 installed on the third mounting plate at intervals; the supporting pulley supports the multi-V belt.

[0007] Preferably, power unit 2 includes a second power unit bracket connected to connecting frame 2, a second drive motor is provided on the second power unit bracket, the second drive motor output shaft is vertically arranged, and a toothed belt pulley 1 is provided on the output shaft of the second drive motor, a toothed belt pulley 2 is provided on the rotating shaft of the driving pulley, and the toothed belt pulley 1 and the toothed belt pulley 2 are connected by a synchronous toothed belt drive.

[0008] Preferably, the bag clamping device includes a swing arm and a clamping wheel group; the swing arm is rotatably connected to the left side of the bottom of the mounting frame through a swing arm rotating shaft, and a corresponding connecting frame is arranged, a power unit 1 is directly connected to the upper swing arm rotating shaft of the swing arm, and a first mounting plate is arranged at the lower end of the swing arm, and the clamping wheel group includes a plurality of bag clamping wheels 2 installed on the first mounting plate, and the clamping wheel group cooperates with the long fixed wheel group and the multi-V belt to realize the clamping of the packaging bag.

[0009] Preferably, a rubber coating layer is provided on the outer side of the poly-V belt, and a plurality of longitudinal grooves are provided on the rubber coating layer at intervals; the increased friction between the poly-V belt and the packaging bag can further prevent the packaging bag from falling.

[0010] Preferably, the power unit 1 includes a first drive motor, a first power unit bracket is provided on the connecting frame 1, the first drive motor is installed on the first power unit bracket, and the output shaft of the first drive motor is arranged horizontally; a swing arm connecting bearing seat is also provided on the first power unit bracket, a swing arm rotating shaft is installed on the swing arm connecting bearing seat, the swing arm is connected to the swing arm rotating shaft, the swing arm rotating shaft is coaxially arranged with the output shaft of the first drive motor, one end of the swing arm rotating shaft is connected to the output shaft of the first drive motor through a coupling, and the other end extends out of the swing arm connecting bearing seat and is transmission-connected to the bag picking device.

[0011] Preferably, the bag picking device includes a bag picking bracket, a bag picking swinging mechanism and a power transmission mechanism, and the bag picking bracket is installed at the rear of the mounting frame; the bag picking swinging mechanism includes a quadrilateral connecting rod mechanism, a bag picking rod and a plurality of suction cups spaced apart on the lower side of the bag picking rod; an axle seat is provided at the lower part of the bag picking bracket, and the axle seat is rotatably connected to a connecting shaft; the quadrilateral connecting rod mechanism connects the connecting shaft and the bag picking rod, and the quadrilateral connecting rod mechanism ensures that the suction cups on the bag picking rod are always facing downwards when it rotates; the swing arm rotating shaft and the quadrilateral connecting rod mechanism are connected through a power transmission mechanism.

[0012] Preferably, the quadrilateral linkage mechanism includes a power transmission link, a position holding link and a vertical link; one end of the power transmission link is rotatably connected to the connecting shaft, and the other end is rotatably connected to the bag picking rod, and a hinged seat is provided in the middle, which is hinged to the power transmission mechanism; the lower end of the vertical link is fixedly connected to the bag picking rod, and the upper end is rotatably connected to the position holding link, and the other end of the position holding link is rotatably connected to the side plate of the axle seat, and the side plate of the axle seat is used as a fixed link in the quadrilateral linkage mechanism.

[0013] Preferably, the power transmission mechanism includes a support base arranged on a mounting frame, a linkage shaft rotatably connected in the support base, the linkage shaft is horizontally arranged, and a front link mechanism and a rear link mechanism are respectively arranged at both ends of the linkage shaft; the front link mechanism is composed of a first link, a second link and a third link, the first link is fixedly connected to the output end of the swing arm rotating shaft, the two ends of the second link are hinged to the first link and the third link, and the third link is fixedly connected to the linkage shaft; the rear link mechanism is composed of a fourth link and a fifth link; the fourth link is fixedly connected to the other end of the linkage shaft, and the two ends of the fifth link are respectively hinged to the fourth link and the power transmission link.

[0014] Preferably, a plug-in plate is provided at the three lower ends of the swing arm and the connecting frame, and a group of L-shaped guide rails are provided corresponding to the plug-in plates on the first mounting plate and the third mounting plate, and the plug-in plates are slidably plugged into the corresponding L-shaped guide rail groups; connecting bolts are also provided between the plug-in plate at the lower end of the swing arm and the first mounting plate, and between the plug-in plate at the three lower ends of the connecting frame and the third mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a bag picking and shooting mechanism in an embodiment of the present invention; Figure 2 It is a schematic structural diagram of the swing arm side of the bag picking and shooting mechanism in the embodiment of the present invention; Figure 3 Schematic diagram of the structure of the bag picking device in the embodiment of the present invention Figure 4 It is a schematic diagram of the connection structure between the driving pulley and the passive pulley in the embodiment of the present invention.

[0016] Explanation of the reference numerals: 1, mounting frame; 2, connecting frame 1; 3, connecting frame 2; 4, second mounting plate; 5, driving pulley; 6, driven pulley; 7, supporting pulley; 8, multi-V belt; 801, longitudinal groove; 9, connecting frame 3; 10, third mounting plate; 11, bag clamping wheel 1; 12, second power unit bracket; 13, second drive motor; 14, toothed belt pulley 1; 15, toothed belt pulley 2; 16, synchronous toothed belt; 17, swing arm; 18, swing arm rotating shaft; 19, first mounting plate; 20, bag clamping wheel 2; 21, first power unit bracket ; 22. First driving motor; 23. Swing arm connecting bearing seat; 24. Bag picking bracket; 26. Bag picking rod; 27. Suction cup; 28. Axle seat; 29. ​​Power transmission connecting rod; 30. Vertical connecting rod; 31. Position holding connecting rod; 32. Support seat; 33. Linkage shaft; 34. First connecting rod; 35. Second connecting rod; 36. Third connecting rod; 37. Fourth connecting rod; 38. Fifth connecting rod; 39. Plug-in board; 40. L-shaped guide rail; 41. Connecting bolt; 42. First bent plate; 43. Second bent plate; 44. Third bent plate; 45. Combined connecting frame. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with specific embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0018] like Figures 1 to 4 As shown, the present embodiment provides a bag picking and shooting mechanism, including a mounting frame 1, which is rectangular in top view, and a bag shooting device, a bag clamping device and a bag picking device are arranged at the bottom of the mounting frame 1, and the bag picking device is located at the rear side of the mounting frame 1; a power unit 1 is arranged corresponding to the bag clamping device and the bag picking device, and the power unit 1 controls the bag clamping device and the bag picking device to work together to complete the bag opening and clamping actions; a power unit 2 is arranged corresponding to the bag shooting device, and the power unit 2 drives the bag shooting device to shoot the packaging bag onto the feeding tube.

[0019] During operation, the power unit 1 is first used to drive the bag picking device downward to absorb the packaging belt, and at the same time, the bag clamping device is opened, and then the power unit 1 moves in the opposite direction, driving the bag picking device to carry the packaging belt upward, lifting the packaging bag between the bag clamping devices, and at the same time, the bag clamping device clamps the packaging bag; the power unit 1 stops, the bag picking device releases the packaging bag, and then the power unit 2 drives the bag shooting device to shoot the packaging bag onto the feeding pipe; compared with the manual bagging in the prior art, the bag picking and shooting mechanism in the present application meets the needs of modern production and has higher work efficiency, which can not only reduce the labor intensity of workers, but also avoid the dust environment that harms the health of workers; at the same time, the power unit 1 synchronously drives the bag picking device and the bag clamping device to move, thereby realizing equipment linkage, reducing the equipment manufacturing cost, improving the equipment synchronous operation level, avoiding the dual-drive structure causing the bag picking device and the bag clamping device to move asynchronously, and improving the working efficiency; at the same time, it also improves the space utilization rate, which is conducive to reducing the equipment footprint.

[0020] A connecting frame 1 2 and a connecting frame 2 3 are provided on the right side at the bottom of the mounting frame 1, with the connecting frame 2 3 in front and the connecting frame 1 2 in the back, and a second mounting plate 4 is connected to the lower ends of the connecting frame 1 2 and the connecting frame 2 3; the bag shooting device includes a long fixed wheel group and an adjusting wheel group; the long fixed wheel group is installed on the second mounting plate 4, including a driving pulley 5 and a passive pulley 6, and a plurality of supporting pulleys 7 are arranged at intervals between the driving pulley 5 and the passive pulley 6; a multi-V belt 8 is installed on the driving pulley 5 and the passive pulley 6; the power unit 2 is arranged on the connecting frame 2 3 and is connected to the driving pulley 5 in transmission; a connecting frame 3 9 is provided on the left side at the bottom of the mounting frame 1 corresponding to the connecting frame 2 3, and a third mounting plate 10 is connected to the lower end of the connecting frame 3 9, and the adjusting wheel group includes a plurality of bag clamping wheels 11 installed at intervals on the third mounting plate 10. The power unit 2 includes a second power unit bracket 12 connected to the connecting frame 2 3, and a second drive motor 13 is arranged on the second power unit bracket 12. The output shaft of the second drive motor 13 is vertically arranged, and a toothed belt pulley 14 is arranged on the output shaft of the second drive motor 13. A toothed belt pulley 2 15 is arranged on the rotating shaft of the driving pulley 5. The toothed belt pulley 14 and the toothed belt pulley 2 15 are connected by a synchronous toothed belt 16. A rubber coating layer is arranged on the outer side of the multi-V belt 8, and a plurality of longitudinal grooves 801 are arranged on the rubber coating layer at intervals. The longitudinal rubber coating layer and the longitudinal grooves 801 can increase the friction between the multi-V belt 8, the bag clamping wheel 1 11, the bag clamping wheel 20 and the packaging bag. The increase in friction can further prevent the packaging bag from falling when shooting the bag.

[0021] The bag clamping device includes a swing arm 17 and a clamping wheel group; the swing arm 17 is rotatably connected to the left side of the bottom of the mounting frame 1 through a swing arm rotating shaft 18, and is arranged corresponding to a connecting frame 2. The power unit 1 is directly connected to the upper swing arm rotating shaft 18 of the swing arm 17. A first mounting plate 19 is arranged at the lower end of the swing arm 17. The clamping wheel group includes a plurality of bag clamping wheels 20 mounted on the first mounting plate 19. The clamping wheel group cooperates with the long fixed wheel group and the multi-V belt 8 to achieve the clamping of the packaging bag.

[0022] The power unit 1 includes a first drive motor 22. The connection structure of the first drive motor 22 is specifically as follows: a first power unit bracket 21 is provided on the connecting frame 1 2, the first drive motor 22 is installed on the first power unit bracket 21, and the output shaft of the first drive motor 22 is arranged horizontally; a swing arm connecting bearing seat 23 is also provided on the first power unit bracket 21, the swing arm rotating shaft 18 is rotatably connected to the swing arm connecting bearing seat 23, the swing arm 17 is fixedly connected to the swing arm rotating shaft 18, the swing arm rotating shaft 18 is coaxially arranged with the output shaft of the first drive motor 22, one end of the swing arm rotating shaft 18 is connected to the output shaft of the first drive motor 22 through a coupling, and the other end extends out of the swing arm connecting bearing seat 23 and is transmission-connected to the bag picking device.

[0023] The bag picking device includes a bag picking bracket 24, a bag picking swinging mechanism and a power transmission mechanism. The bag picking bracket is installed at the rear of the mounting frame 1; the bag picking swinging mechanism includes a quadrilateral connecting rod mechanism, a bag picking rod 26 and a plurality of suction cups 27 arranged at intervals on the lower side of the bag picking rod 26; an axle seat 28 is arranged at the lower part of the bag picking bracket 24, and the axle seat 28 is rotatably connected with a connecting shaft; the quadrilateral connecting rod mechanism connects the connecting shaft and the bag picking rod 26, and the quadrilateral connecting rod mechanism ensures that the suction cup 27 on the bag picking rod 26 is always facing downward when it rotates; the swing arm rotating shaft 18 is connected to the quadrilateral connecting rod mechanism through a power transmission mechanism.

[0024] The quadrilateral linkage mechanism includes a power transmission link 29, a position holding link 30 and a vertical link 31; one end of the power transmission link 29 is rotatably connected to the connecting shaft, and the other end is rotatably connected to the bag picking rod 26, and a hinged seat is provided in the middle, which is hinged to the power transmission mechanism; the lower end of the vertical link 31 is fixedly connected to the bag picking rod 26, and the upper end is rotatably connected to the position holding link 30, and the other end of the position holding link 30 is rotatably connected to the side plate of the shaft seat 28, and the side plate of the shaft seat 28 is used as a fixed link in the quadrilateral linkage mechanism. The power transmission mechanism includes a support seat 32 arranged on the mounting frame 1, a linkage shaft 33 is rotatably connected in the support seat 32, the linkage shaft 33 is arranged horizontally, and the two ends of the linkage shaft 33 are respectively provided with a front link mechanism and a rear link mechanism; the front link mechanism is composed of a first link 34, a second link 35 and a third link 36, the first link 34 is fixedly connected to the output end of the swing arm rotating shaft 18, the two ends of the second link 35 are hinged to the first link 34 and the third link 36, and the third link 36 is hinged to the linkage The shaft 33 is fixedly connected; the rear connecting rod mechanism is composed of a fourth connecting rod 37 and a fifth connecting rod 38; the fourth connecting rod 37 is fixedly connected to the other end of the linkage shaft 33, and the two ends of the fifth connecting rod 38 are respectively hinged to the fourth connecting rod 37 and the power transmission connecting rod 29; wherein, the fifth connecting rod 38 is an adjusting cylinder, and when the bag picking rod 26 and the suction cup 27 cannot be fully in place by relying solely on the first drive motor 22, the adjusting cylinder is used to supplement the action, drive the bag picking rod 26 and the suction cup 27 to be fully in place, and pick up the packaging bag.

[0025] When the first drive motor 22 rotates clockwise, the swing arm 17 moves outward and opens. At the same time, the first drive motor 22 drives the front connecting rod mechanism to operate, and the front connecting rod mechanism drives the linkage shaft 33 to rotate, thereby driving the rear connecting rod mechanism to operate. The rear connecting rod mechanism drives the bag picking rod 26 to move downward through the quadrilateral connecting rod mechanism, and the suction cup 27 picks up the packaging bag; when the first drive motor 22 rotates counterclockwise, the swing arm 17 moves inward. At the same time, the first drive motor 22 drives the front connecting rod mechanism, the rear connecting rod mechanism, and the quadrilateral connecting rod mechanism to operate in sequence, so that the bag picking rod 26 moves upward, picks up the packaging bag to between the bag clamping wheel 20 and the multi-V belt 8, and clamps the packaging bag. Then, the first drive motor 22 stops, and the suction cup 27 releases the packaging bag; the output shaft of the second drive motor 13 drives the toothed pulley 14 to rotate, and the toothed pulley 14 drives the toothed pulley 2 15 to rotate through the synchronous toothed belt 16. The toothed pulley 2 15 is coaxial with the driving pulley 5, and then drives the driving pulley 5 to rotate. The driving pulley 5 drives the passive pulley 6 to rotate through the multi-V belt 8. When the multi-V belt 8 is running, the packaging bag is clamped between the multi-V belt 8 and the bag clamping wheel 1 11 and the bag clamping wheel 20, and the friction force drives the packaging bag to be quickly ejected forward, so that the bag mouth of the packaging bag is inserted into the filling port of the rotary packaging machine. A number of transverse triangular wedges are attached to the inner side of the multi-V belt 8, and the passive pulley 6, the driving pulley 5, and the supporting pulley 7 are all multi-V belt pulleys adapted to the multi-V belt 8.

[0026] A plug-in plate 39 is provided at the lower end of the swing arm 17 and the connecting frame 39. A group of L-shaped guide rails 40 are provided corresponding to the plug-in plate 39 on the first mounting plate 19 and the third mounting plate 10, and the plug-in plate 39 is slidably plugged into the corresponding L-shaped guide rail group 40; connecting bolts 41 are also provided between the plug-in plate 39 at the lower end of the swing arm 17 and the first mounting plate 19, and between the plug-in plate 39 at the lower end of the connecting frame 39 and the plug-in plate 39 at the lower end of the third mounting plate 10.

[0027] Before the bag picking and shooting mechanism is operated, professionals are required to adjust the positions of the first mounting plate 19 and the third mounting plate 10, and adjust the spacing between the first mounting plate 19, the third mounting plate 10 and the second mounting plate 4 by adjusting the connecting bolts 41, and then adjust the gap between the bag clamping wheel 1 11, the bag clamping wheel 20 and the multi-V belt 8 and the supporting wheel 7 inside the multi-V belt 8, and adjust the size of the clamping force of the bag clamping device on the packaging bag, so that the bag clamping device can not only clamp the packaging bag, but also ensure that the packaging bag can be smoothly shot out. By setting the L-shaped guide rail 40, the plug-in plate 39 and the connecting bolts 41, it is possible to avoid insufficient clamping force (the gap between the bag clamping wheel 1 11, the bag clamping wheel 20 and the multi-V belt 8 and the supporting wheel 7 inside the multi-V belt 8 is too large), and the packaging bag falls, and it is also possible to avoid excessive clamping force (the gap between the bag clamping wheel 1 11, the bag clamping wheel 20 and the multi-V belt 8 and the supporting wheel 7 inside the multi-V belt 8 is too small), and the packaging bag is stuck and cannot be shot out.

[0028] It also includes a bag opening holder, which includes a first curved plate 42, a second curved plate 43 and a third curved plate 44 with a V-shaped side section. The first curved plate 42, the second curved plate 43 and the third curved plate 44 form a conveying trough with a diamond-shaped side section, and the conveying trough is used to accommodate the bag opening of the packaging bag; wherein the first curved plate 42 is connected to the first mounting plate 19 through a combined connecting frame 45, the second curved plate 43 is connected to the second mounting plate 4 through the combined connecting frame 45, and the third curved plate 44 is connected to the third mounting plate 10 through the combined connecting frame. After the bag clamping device clamps the packaging bag, the bag opening of the packaging bag is just accommodated in the conveying trough and is stretched open by the bag opening holder.

[0029] The above description is only the preferred embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made by using the contents of the present invention specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A bag picking and shooting mechanism, comprising a mounting frame, a bag shooting device, a bag clamping device and a bag picking device are arranged at the bottom of the mounting frame, characterized in that: A power unit 1 is provided corresponding to the bag clamping device and the bag picking device. The power unit 1 controls the bag clamping device and the bag picking device to work together to complete the bag opening and clamping actions; a power unit 2 is provided corresponding to the bag shooting device. The power unit 2 drives the bag shooting device to shoot the packaging bag onto the feeding tube.

2. A bag picking and shooting mechanism according to claim 1, characterized in that: A connecting frame 1 and a connecting frame 2 are provided on the right side of the bottom of the mounting frame, with the connecting frame 2 in front and the connecting frame 1 in the back, and a second mounting plate is connected to the lower ends of the connecting frame 1 and the connecting frame 2; the bag shooting device comprises a long fixed wheel group and an adjusting wheel group; the long fixed wheel group is installed on the second mounting plate, and comprises a driving pulley and a passive pulley, and a plurality of supporting pulleys are arranged at intervals between the driving pulley and the passive pulley; a multi-wedge belt is installed on the driving pulley and the passive pulley; a power unit 2 is arranged on the connecting frame 2 and is connected to the driving pulley in transmission; a connecting frame 3 is provided on the left side of the bottom of the mounting frame corresponding to the connecting frame 2, and a third mounting plate is connected to the lower end of the connecting frame 3, and the adjusting wheel group comprises a plurality of bag clamping wheels 1 installed at intervals on the third mounting plate.

3. A bag picking and shooting mechanism according to claim 2, characterized in that: Power unit 2 includes a second power unit bracket connected to connecting frame 2, a second drive motor is arranged on the second power unit bracket, the second drive motor output shaft is vertically arranged, and a toothed belt pulley 1 is arranged on the output shaft of the second drive motor, a toothed belt pulley 2 is arranged on the rotating shaft of the driving belt pulley, and the toothed belt pulley 1 and the toothed belt pulley 2 are connected by a synchronous toothed belt transmission.

4. The bag picking and shooting mechanism according to claim 2, characterized in that: The bag clamping device includes a swing arm and a clamping wheel group; the swing arm is rotatably connected to the left side of the bottom of the mounting frame through a swing arm rotating shaft, and is arranged corresponding to a connecting frame 1. A power unit 1 is directly connected to the swing arm rotating shaft at the upper part of the swing arm. A first mounting plate is arranged at the lower end of the swing arm. The clamping wheel group includes a plurality of bag clamping wheels 2 installed on the first mounting plate. The clamping wheel group cooperates with a long fixed wheel group and a multi-V belt to realize the clamping of the packaging bag.

5. The bag picking and shooting mechanism according to claim 4, characterized in that: A rubber layer is arranged on the outer side of the multi-V belt, and a plurality of longitudinal grooves are arranged on the rubber layer at intervals.

6. The bag picking and shooting mechanism according to claim 4, characterized in that: The power unit 1 includes a first drive motor, a first power unit bracket is provided on the connecting frame 1, the first drive motor is installed on the first power unit bracket, and the output shaft of the first drive motor is arranged horizontally; the first power unit bracket is also provided with a swing arm connecting bearing seat, a swing arm rotating shaft is installed on the swing arm connecting bearing seat, the swing arm is connected to the swing arm rotating shaft, the swing arm rotating shaft is coaxially arranged with the output shaft of the first drive motor, one end of the swing arm rotating shaft is connected to the output shaft of the first drive motor through a coupling, and the other end extends out of the swing arm connecting bearing seat and is transmission-connected to the bag picking device.

7. The bag picking and shooting mechanism according to claim 6, characterized in that: The bag picking device comprises a bag picking bracket, a bag picking swing mechanism and a power transmission mechanism, and the bag picking bracket is installed at the rear of the mounting frame; The bag picking swing mechanism includes a quadrilateral connecting rod mechanism, a bag picking rod and a plurality of suction cups arranged at intervals on the lower side of the bag picking rod; an axle seat is arranged at the lower part of the bag picking bracket, and the axle seat is rotatably connected with a connecting shaft; the quadrilateral connecting rod mechanism connects the connecting shaft and the bag picking rod, and the quadrilateral connecting rod mechanism ensures that the suction cups on the bag picking rod are always facing downwards when it rotates; the swing arm rotating shaft and the quadrilateral connecting rod mechanism are connected through a power transmission mechanism.

8. The bag picking and shooting mechanism according to claim 7, characterized in that: The quadrilateral linkage mechanism includes a power transmission link, a position holding link and a vertical link; one end of the power transmission link is rotatably connected to the connecting shaft, and the other end is rotatably connected to the bag picking rod, and a hinged seat is provided in the middle, which is hinged to the power transmission mechanism; the lower end of the vertical link is fixedly connected to the bag picking rod, and the upper end is rotatably connected to the position holding link, and the other end of the position holding link is rotatably connected to the side plate of the axle seat, and the side plate of the axle seat is used as a fixed link in the quadrilateral linkage mechanism.

9. The bag picking and shooting mechanism according to claim 8, characterized in that: The power transmission mechanism includes a support seat arranged on a mounting frame, a linkage shaft is rotatably connected in the support seat, the linkage shaft is horizontally arranged, and a front link mechanism and a rear link mechanism are respectively arranged at both ends of the linkage shaft; the front link mechanism is composed of a first link, a second link and a third link, the first link is fixedly connected to the output end of the swing arm rotating shaft, the two ends of the second link are hinged to the first link and the third link, and the third link is fixedly connected to the linkage shaft; the rear link mechanism is composed of a fourth link and a fifth link; the fourth link is fixedly connected to the other end of the linkage shaft, and the two ends of the fifth link are respectively hinged to the fourth link and the power transmission link.

10. The bag picking and shooting mechanism according to claim 3, characterized in that: A plug-in plate is provided at the three lower ends of the swing arm and the connecting frame. A group of L-shaped guide rails are provided corresponding to the plug-in plates on the first mounting plate and the third mounting plate, and the plug-in plates are slidably plugged into the corresponding L-shaped guide rail group; connecting bolts are also provided between the plug-in plate at the lower end of the swing arm and the first mounting plate, and between the plug-in plate at the three lower ends of the connecting frame and the third mounting plate.

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