A bag packing machine

Abstract

A kind of bag feeding packaging machine.Solve the problems of existing bag feeding packaging machine complex structure, low packaging efficiency, difficult to send bag.It includes frame body;Bag bin, for accommodating bag;Power source, the power source is connected with transmission shaft;Feeding device, for taking bag from bag bin and feeding;Bag opening device, for opening bag;Throwing device, for throwing product material into opened bag;Heat sealing device, for heat sealing bag;Discharging device, for product discharge;Conveying device, be located in frame body, for clamping material and for conveying material travel;The feeding device, bag opening device, throwing device are sequentially arranged.The utility model has the advantages that the setting of bag bin and feeding device facilitates rapid bag feeding, avoids artificial bag feeding, realizes automatic processing, facilitates to realize continuous rapid production, and production efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, specifically to a bag-packing machine. Background Technology

[0002] Packaging machinery refers to machines capable of completing all or part of the packaging process for products and commodities. Using machinery to package products can improve productivity, reduce labor intensity, meet the needs of large-scale production, and satisfy hygiene requirements. Packaging machines are machines that wrap products, providing protection and aesthetic appeal. In the packaging and bagging process of wet wipes, face masks, medicated patches, food, etc., it is usually necessary to place the items into bags and then add a solution through filling. Because a solution is typically added, it is best to feed the bags vertically.

[0003] Existing bag-type packaging machines mainly transfer packaging bags sequentially to the bag opening station, the filling station, and the heat sealing station. After processing, the bags are unloaded at the unloading station. The filling station can be added or removed according to the type of material being filled. Since the packaging bags vary in size and cannot be standardized during the packaging process, most factories often use manual methods to transfer the packaging bags and process them one by one according to the bag opening, filling, and heat sealing processes. This is very time-consuming and labor-intensive, and the packaging efficiency is low, resulting in high packaging costs. Utility Model Content

[0004] To address the problems of complex structure, low packaging efficiency, and difficulty in bag feeding in existing bag-feeding packaging machines, this utility model provides a bag-feeding packaging machine.

[0005] The technical solution of this utility model is: a bag-packing machine, including a frame, and further comprising: Bag compartment, located on the frame, is used to hold bags; The power source is mounted on the frame and is connected to the drive shaft; The feeding device, located on the frame, is used to take bags from the bag hopper and feed them in; A bag-opening device, located on the frame, is used to open the bag; The feeding device, located on the frame, is used to feed product materials into the opened bags; A heat-sealing device, mounted on a frame, is used to heat-seal bags; The feeding device, located on the frame, is used for feeding products. A conveying device, located on the frame, is used to clamp and transport materials; the feeding device, bag opening device, feeding device, and heat sealing device are arranged in sequence.

[0006] As a further improvement of this utility model, there are at least two bag compartments, each bag compartment includes a compartment frame and a compartment plate, the compartment plate has multiple pieces, the multiple compartment plates cooperate with each other to form a receiving cavity for accommodating bags, the compartment plate slides relative to the compartment frame and is used to adjust the size of the receiving cavity.

[0007] As a further improvement of this utility model, the feeding device includes a material picking mechanism and a feeding mechanism. The material picking mechanism includes a material picking frame and a material picking component for picking up material from the bag bin. The material picking component is arranged correspondingly to the bag bin and is mounted on the material picking frame and linked with the material picking frame. The feeding mechanism includes a feeding frame and a feeding clamp. The feeding clamp is mounted on the feeding frame and has a first position for picking up material from the material picking component and a second position for feeding.

[0008] As a further improvement of this utility model, it also includes a first swing arm, which is mounted on the frame and oscillatingly connected to the frame; the transmission shaft is connected to the first swing arm through the first eccentric wheel and drives the material handling frame to move vertically through the first swing arm.

[0009] As a further improvement of this utility model, it also includes a second swing arm, which is mounted on the frame and oscillatingly connected to the frame; the transmission shaft is connected to the second swing arm through a second eccentric wheel, the feeding frame is mounted on a rotating shaft, and the second swing arm is connected to the rotating shaft through a connecting rod assembly and drives the feeding frame to rotate circumferentially.

[0010] As a further improvement of this utility model, the conveying device includes: A first conveying mechanism, mounted on a frame, is used to clamp bags to be processed; the first conveying mechanism includes a first conveying frame, on which a first clamping assembly is provided; the first clamping assembly has an open first position and a second position for clamping the bag; The second conveying mechanism, mounted on the frame, is used to clamp the bags to be processed and transport the bags to the next process. The second conveying mechanism includes a second conveying frame, which is equipped with a second clamping assembly for clamping the bags. The drive shaft is connected to the second conveying frame and is used to drive the second conveying frame to move. The second clamping assembly has a first position for clamping the bags and a second position for opening.

[0011] As a further improvement of this utility model, the first conveying mechanism includes a first conveying shaft and a first clamping transmission component. The transmission shaft is connected to the first conveying shaft via a third eccentric wheel. The first conveying shaft is connected to the first conveying frame via the first clamping transmission component and drives the position of the first clamping assembly to change via the first conveying frame. The second conveying mechanism includes a second conveying shaft and a second clamping transmission component. The transmission shaft is connected to the second conveying shaft via a fourth eccentric wheel. The second conveying shaft is connected to the second conveying frame via the second clamping transmission component and drives the position of the second clamping assembly to change via the second conveying frame.

[0012] As a further improvement of this utility model, the second conveying mechanism includes a fifth eccentric wheel and a swing arm assembly. The transmission shaft is connected to the swing arm assembly through the fifth eccentric wheel. The swing arm assembly is connected to the second conveying frame through a pull rod and drives the second conveying frame to slide horizontally relative to the first conveying frame through the pull rod when the swing arm assembly swings.

[0013] As a further improvement of this utility model, the feeding device includes: The feeding frame, wherein the drive shaft is connected to the feeding frame via a sixth eccentric wheel and is used to drive the feeding frame to move vertically; The material feeding device is located on the feeding rack and is linked to the feeding rack. It works in conjunction with the opened bag to allow material to fall. A filling component, mounted on a feeding rack and linked to the feeding rack, works in conjunction with an open bag to fill the bag containing the material with liquid; the filling component moves synchronously with the material feeding component.

[0014] As a further improvement to this utility model, it also includes: A tensioning device is located between the feeding device and the heat sealing device; the tensioning device includes a tensioning frame, on which tensioning clamps for clamping the bag are provided, and the drive shaft is connected to the tensioning frame through a gear transmission assembly and is used to drive the tensioning frame to tighten the bag. A coding device is located between the heat sealing device and the unloading device; there are two heat sealing devices, which are arranged sequentially; the drive shaft is connected to the unloading device and is used to drive the unloading device to pick up and unload materials from the coding device.

[0015] The beneficial effects of this utility model are that the bag hopper and feeding device facilitate rapid bag feeding, avoid manual bag feeding, realize automated processing, facilitate continuous and rapid production, and achieve high production efficiency. This utility model also has the advantages of simple structure, convenient assembly, reliable operation, and long service life. Attached Figure Description

[0016] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0017] Appendix Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Appendix Figure 3 For the appendix Figure 2 A schematic diagram of the structure from another direction.

[0019] Appendix Figure 4 This is a schematic diagram of the structure of the bag compartment in an embodiment of this utility model.

[0020] Appendix Figure 5 For the appendix Figure 4 A schematic diagram of the structure from another direction.

[0021] Appendix Figure 6 This is a schematic diagram of the feeding mechanism in an embodiment of the present utility model.

[0022] Appendix Figure 7 This is a schematic diagram of the bag-opening device according to an embodiment of the present invention.

[0023] Appendix Figure 8 This is a schematic diagram of the bag-opening device according to an embodiment of the present invention.

[0024] Appendix Figure 9 This is a schematic diagram of the tensioning device according to an embodiment of the present invention.

[0025] Appendix Figure 10 This is a schematic diagram of the feeding device according to an embodiment of the present invention.

[0026] Appendix Figure 11 This is a schematic diagram of the structure of the first conveying mechanism in an embodiment of this utility model.

[0027] Appendix Figure 12 This is a schematic diagram of the structure of the second conveying mechanism in an embodiment of this utility model.

[0028] Appendix Figure 13 This is a structural schematic diagram of an embodiment of the present utility model.

[0029] In the diagram, 1. Frame; 2. Bag compartment; 21. Compartment frame; 22. Compartment plate; 23. Receptacle; 3. Power source; 31. Drive shaft; 32. First eccentric wheel; 33. Second eccentric wheel; 34. Third eccentric wheel; 35. Fourth eccentric wheel; 36. Fifth eccentric wheel; 37. Sixth eccentric wheel; 4. Feeding device; 41. Material handling mechanism; 411. Material handling frame; 412. Material handling assembly; 42. Loading mechanism; 421. Loading frame; 422. Loading clamp; 43. First swing arm; 44. Second swing arm; 45. Rotating shaft; 46. Connecting rod assembly; 5. Bag opening device; 6. Feeding device; 61. Feeding frame; 62. Material feeding component; 63. Filling component; 7. Heat sealing device; 8. Feeding device; 9. Conveying device; 91. First conveying mechanism; 911. First conveying frame; 912. First clamping assembly; 913. First conveying shaft; 914. First clamping transmission component; 92. Second conveying mechanism; 921. Second conveying frame; 922. Second clamping assembly; 923. Second conveying shaft; 924. Second clamping transmission component; 93. Swing rod assembly; 931. Pull rod; 10. Tensioning device; 101. Tensioning frame; 102. Tensioning clamp; 103. Gear transmission assembly; 11. Marking device. Detailed Implementation

[0030] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Depend on Figure 1 Combination Figure 2-13 As shown, a bag-packing machine includes a frame 1, and further includes: Bag compartment 2, located on frame 1, is used to hold bags; Power source 3 is mounted on frame 1 and is connected to drive shaft 31; Feeding device 4, located on frame 1, is used to take bags from bag bin 2 and feed them in; The bag opening device 5 is mounted on the frame 1 and is used to open the bag. Feeding device 6, located on frame 1, is used to feed product materials into the opened bag; The heat sealing device 7, mounted on the frame 1, is used to heat seal the bag; The feeding device 8 is installed on the frame 1 and is used for feeding products. A conveying device 9, located on the frame 1, is used to clamp and transport materials. The feeding device 4, bag opening device 5, material feeding device 6, and heat sealing device 7 are arranged sequentially. The advantages of this invention are that the bag hopper and feeding device facilitate rapid bag feeding, avoid manual bag feeding, achieve automated processing, facilitate continuous and rapid production, and have high production efficiency. This invention also has the advantages of simple structure, convenient assembly, reliable operation, and long service life. In this invention, the bag opening device 5, material feeding device 6, heat sealing device 7, material unloading device 8, and coding device 11 can all be implemented using existing technology, and will not be elaborated upon here.

[0031] At least two bag compartments 2 are included. Each bag compartment 2 comprises a compartment frame 21 and compartment plates 22. Multiple compartment plates 22 are used in combination to form receiving cavities 23 for accommodating bags. The compartment plates 22 slide relative to the compartment frame 21 and are used to adjust the size of the receiving cavities 23. The two bag compartments form at least two receiving cavities, each of which can hold a bag. This allows for simultaneous feeding of two or more bags, thereby improving production efficiency. The compartment plates can slide relative to the compartment frame, making the size of the receiving cavities adjustable to accommodate different bags and thus adapt to the packaging of different products. In practice, the compartment plates can be mounted on a lead screw, and the size of the receiving cavities can be adjusted by rotating a handwheel. This invention uses bottom-feeding from the bag compartment, resulting in a simple structure and convenient and reliable material handling. Material can also be handled from the side of the bag compartment. This rational utilization of the product's internal space leads to a more compact product structure and higher processing efficiency.

[0032] The feeding device 4 includes a material picking mechanism 41 and a feeding mechanism 42. The material picking mechanism 41 includes a material picking frame 411 and a material picking component 412 for picking up material from the bag hopper 2. The material picking component 412 is correspondingly arranged with the bag hopper 2 and is mounted on the material picking frame 411 and linked with the material picking frame 411. The feeding mechanism 42 includes a feeding frame 421 and a feeding clamp 422. The feeding clamp 422 is mounted on the feeding frame 421 and has a first position for picking up material from the material picking component 412 and a second position for feeding. This allows the feeding device to quickly pick up and feed material, enabling high-speed continuous production and improving product production efficiency.

[0033] This invention also includes a first swing arm 43, mounted on the frame 1 and oscillatingly connected to the frame 1; the transmission shaft 31 is connected to the first swing arm 43 via a first eccentric wheel 32, and the first swing arm 43 drives the material-picking frame 411 to move vertically. In practice, the material-picking component can be a suction cup component to pick up bags from the bottom of the bag compartment. Specifically, this invention also includes a second swing arm 44, mounted on the frame 1 and oscillatingly connected to the frame 1; the transmission shaft 31 is connected to the second swing arm 44 via the second eccentric wheel 33; the material-feeding frame 421 is mounted on a rotating shaft 45; the second swing arm 44 is connected to the rotating shaft 45 via a connecting rod assembly 46 and drives the material-feeding frame 421 to rotate circumferentially. The first eccentric wheel drives the first swing arm to swing; when the material-picking frame moves upward to its designated position (towards the bag compartment), the material-picking component can pick up the bag and move downward with the material-picking frame. At this time, the second eccentric wheel can drive the second swing arm to move. The second swing arm drives the rotating shaft to rotate through the connecting rod assembly, which allows the feeding rack to rotate to the picking rack to clamp the bag, and then rotate to the bag opening device for reliable and rapid feeding. In fact, this invention uses a single power source to drive the transmission shaft, which in turn drives the conveying device through a mechanical structure (eccentric wheel, swing arm, etc.), avoiding the impact of unstable air pressure on product processing when using a cylinder or other power source for material picking. This invention uses only one power source as the main power source, reducing costs.

[0034] The conveying device 9 includes: A first conveying mechanism 91 is mounted on a frame 1 and is used to clamp bags to be processed. The first conveying mechanism 91 includes a first conveying frame 911, and a first clamping assembly 912 is provided on the first conveying frame 911. The first clamping assembly 912 has an open first position and a second position for clamping the bag. The second conveying mechanism 92, mounted on the frame 1, is used to clamp bags to be processed and convey them to the next process. The second conveying mechanism 92 includes a second conveying frame 921, which is equipped with a second clamping assembly 922 for clamping the bags. The drive shaft 31 is connected to the second conveying frame 921 and is used to drive the second conveying frame 921 to move. The second clamping assembly 922 has a first position for clamping the bag and a second position for being open. Typically, the second clamping assembly and the first clamping assembly clamp the material in a staggered manner; that is, when the first clamping assembly is in its open first position (e.g., ...), ... Figure 11 As shown), the second clamping component is in the second position of clamping the bag (e.g. Figure 12As shown in the diagram, the swing arm assembly and pull rod can drive the second clamping assembly and the second conveyor frame to slide horizontally, thus transporting the bags to the next workstation. In this way, the first conveyor mechanism clamps the bags during processing at each workstation, while the second conveyor mechanism drives the bags to move between processes. This structure is simple, and the transmission is convenient and reliable. In this invention, the second clamping assembly is located below the first clamping assembly, thus making reasonable use of the product's internal space and resulting in a more compact product structure. Typically, the second conveyor mechanism clamps the bags and drives them to be taken from the feeding mechanism, and then sequentially conveyed to the bag opening device, detection device, feeding device, tensioning device, heat sealing device, and unloading device, etc.

[0035] The first conveying mechanism 91 includes a first conveying shaft 913 and a first clamping transmission component 914. The transmission shaft 31 is connected to the first conveying shaft 913 via a third eccentric wheel 34. The first conveying shaft 913 is connected to the first conveying frame 911 via the first clamping transmission component 914 and drives the position change of the first clamping assembly 912 through the first conveying frame 911. The second conveying mechanism 92 includes a second conveying shaft 923 and a second clamping transmission component 924. The transmission shaft 31 is connected to the second conveying shaft 923 via a fourth eccentric wheel 35. The second conveying shaft 923 is connected to the second conveying frame 921 via the second clamping transmission component 924 and drives the position change of the second clamping assembly 922 through the second conveying frame 921. In essence, this invention uses a single power source to drive the transmission shaft, which in turn drives the conveying device through a mechanical structure, avoiding the impact of unstable air pressure on product processing when using power sources such as cylinders for feeding. Typically, the power source for this invention is an electric motor.

[0036] The second conveying mechanism 92 includes a fifth eccentric wheel 36 and a swing arm assembly 93. The drive shaft 31 is connected to the swing arm assembly 93 via the fifth eccentric wheel 36. The swing arm assembly 93 is connected to the second conveyor frame 921 via a pull rod 931. When the swing arm assembly 93 swings, the pull rod 931 drives the second conveyor frame 921 to slide horizontally relative to the first conveyor frame 911. Typically, the fifth eccentric wheel is connected to a commutator via a linkage assembly or similar structure. The commutator is connected to the swing arm assembly and is used to drive the swing arm assembly to swing. When the swing arm assembly swings, it can drive the pull rod, thereby pulling the second conveyor frame, so that the bag held on the second clamping assembly can enter the next process for easier processing.

[0037] The feeding device 6 includes: The feeding frame 61 is connected to the transmission shaft 31 via the sixth eccentric wheel 37 and is used to drive the feeding frame 61 to move vertically. Material feeding component 62 is mounted on feeding rack 61 and linked with feeding rack 61, and cooperates with the opened bag for material feeding; A filling component 63, mounted on and linked to the feeding rack 61, cooperates with the opened bag to fill the bag containing material with liquid. The filling component 63 moves synchronously with the material feeding component 62. The material feeding component may have a feeding slot, allowing material to fall freely into the bag, or it may be inserted into the slot via an insert plate and ultimately fall into the bag. The feeding slot in the material feeding component may be an inverted trapezoid, serving as a guide and limiting element.

[0038] This utility model also includes: The tensioning device 10 is located between the feeding device 6 and the heat sealing device 7. The tensioning device 10 includes a tensioning frame 101, and the tensioning frame 101 is provided with a tensioning clamp 102 for clamping the bag. The transmission shaft 31 is connected to the tensioning frame 101 through a gear transmission assembly 103 and is used to drive the tensioning frame 101 to tighten the bag. A coding device 11 is located between the heat-sealing device 7 and the feeding device 8. There are two heat-sealing devices 7, arranged sequentially. The drive shaft 31 is connected to the feeding device 8 and drives it to pick up and feed material from the coding device 11. In this invention, a detection device can be installed between the bag-opening device and the feeding device to ensure the bag is reliably opened, facilitating subsequent processing. The tensioning device pulls the filled material to both sides, making the bag flatter and easier to heat-seal. This invention uses two heat-sealing devices, one for pre-heat sealing and the other for shaping and sealing, thus reasonably distributing the heat-sealing time and improving production efficiency.

[0039] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.

Claims

1. A bag-packing machine, comprising a frame (1), characterized in that: Also includes: Bag compartment (2), located on the frame (1), is used to hold bags; A power source (3) is mounted on the frame (1), and the power source (3) is connected to the drive shaft (31); Feeding device (4), located on frame (1), is used to take bags from bag bin (2) and feed them; A bag opening device (5) is installed on the frame (1) and is used to open the bag; Feeding device (6), located on frame (1), is used to feed product materials into the open bag; A heat sealing device (7) is installed on the frame (1) and is used to heat seal the bag; The feeding device (8) is installed on the frame (1) and is used for feeding products; The conveying device (9) is located on the frame (1) and is used to clamp the material and transport the material. The feeding device (4), bag opening device (5), feeding device (6), and heat sealing device (7) are arranged in sequence.

2. The bag-packing machine according to claim 1, characterized in that... The bag compartment (2) has at least two compartments, each including a compartment frame (21) and a compartment plate (22). The compartment plate (22) has multiple pieces, which cooperate to form a receiving cavity (23) for holding bags. The compartment plate (22) slides relative to the compartment frame (21) and is used to adjust the size of the receiving cavity (23).

3. The bag-packing machine according to claim 1, characterized in that... The feeding device (4) includes a material picking mechanism (41) and a feeding mechanism (42). The material picking mechanism (41) includes a material picking frame (411) and a material picking component (412) for picking up material from the bag hopper (2). The material picking component (412) is arranged correspondingly to the bag hopper (2). The material picking component (412) is arranged on the material picking frame (411) and linked with the material picking frame (411). The feeding mechanism (42) includes a feeding frame (421) and a feeding clamp (422). The feeding clamp (422) is arranged on the feeding frame (421). The feeding clamp (422) has a first position for picking up material from the material picking component (412) and a second position for feeding.

4. A bag-packing machine according to claim 3, characterized in that... It also includes a first swing arm (43), which is mounted on the frame (1) and oscillatingly connected to the frame (1); the transmission shaft (31) is connected to the first swing arm (43) through the first eccentric wheel (32) and drives the material picker (411) to move vertically through the first swing arm (43).

5. A bag-packing machine according to claim 4, characterized in that... It also includes a second swing arm (44), which is mounted on the frame (1) and swings to the frame (1); the transmission shaft (31) is connected to the second swing arm (44) through the second eccentric wheel (33); the loading rack (421) is mounted on the rotating shaft (45); the second swing arm (44) is connected to the rotating shaft (45) through the connecting rod assembly (46) and drives the loading rack (421) to rotate circumferentially.

6. A bag-packing machine according to claim 1, characterized in that... The conveying device (9) includes: A first conveying mechanism (91) is mounted on a frame (1) and is used to clamp bags to be processed. The first conveying mechanism (91) includes a first conveying frame (911) and a first clamping assembly (912) is provided on the first conveying frame (911). The first clamping assembly (912) has an open first position and a second position for clamping bags. The second conveying mechanism (92) is mounted on the frame (1) and is used to clamp the bags to be processed and transport the bags to the next process. The second conveying mechanism (92) includes a second conveying frame (921), which is provided with a second clamping assembly (922) for clamping the bags. The drive shaft (31) is connected to the second conveying frame (921) and is used to drive the second conveying frame (921) to move. The second clamping assembly (922) has a first position for clamping the bags and a second position for opening.

7. A bag-packing machine according to claim 6, characterized in that... The first transmission mechanism (91) includes a first transmission shaft (913) and a first clamping transmission member (914). The transmission shaft (31) is connected to the first transmission shaft (913) through a third eccentric wheel (34). The first transmission shaft (913) is connected to the first transmission frame (911) through the first clamping transmission member (914) and drives the position change of the first clamping assembly (912) through the first transmission frame (911). The second transmission mechanism (92) includes a second transmission shaft (923) and a second clamping transmission member (924). The transmission shaft (31) is connected to the second transmission shaft (923) through a fourth eccentric wheel (35). The second transmission shaft (923) is connected to the second transmission frame (921) through the second clamping transmission member (924) and drives the position change of the second clamping assembly (922) through the second transmission frame (921).

8. A bag-packing machine according to claim 6, characterized in that... The second transmission mechanism (92) includes a fifth eccentric wheel (36) and a swing arm assembly (93). The transmission shaft (31) is connected to the swing arm assembly (93) through the fifth eccentric wheel (36). The swing arm assembly (93) is connected to the second transmission frame (921) through a pull rod (931) and drives the second transmission frame (921) to slide horizontally relative to the first transmission frame (911) through the pull rod (931) when the swing arm assembly (93) swings.

9. A bag-packing machine according to claim 1, characterized in that... The feeding device (6) includes: The feeding rack (61) is connected to the transmission shaft (31) via the sixth eccentric wheel (37) and is used to drive the feeding rack (61) to move vertically. Material feeding component (62) is installed on feeding rack (61) and linked with feeding rack (61), and cooperates with open bag for material feeding; The filling component (63) is mounted on the feeding rack (61) and is linked with the feeding rack (61). It works in conjunction with the opened bag to fill the bag with liquid. The filling component (63) moves synchronously with the material feeding component (62).

10. A bag-packing machine according to claim 1, characterized in that... Also includes: A tensioning device (10) is located between the feeding device (6) and the heat sealing device (7); the tensioning device (10) includes a tensioning frame (101), the tensioning frame (101) is provided with a tensioning clamp (102) for clamping the bag, and the transmission shaft (31) is connected to the tensioning frame (101) through a gear transmission assembly (103) and is used to drive the tensioning frame (101) to tighten the bag; The coding device (11) is located between the heat sealing device (7) and the feeding device (8); there are two heat sealing devices (7), and the two heat sealing devices (7) are arranged in sequence; the transmission shaft (31) is connected to the feeding device (8) and is used to drive the feeding device (8) to take material from the coding device (11).

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