A net bag stringing machine

Abstract

This invention relates to the field of packaging machinery technology, and more particularly to a mesh bag threading machine, comprising: a mesh bag opening support assembly, wherein the opening edge of the mesh bag can be fitted onto the mesh bag opening support assembly; a mesh bag folding assembly, which can drive the opening edge of the mesh bag on the mesh bag opening support assembly to fold and deform; and a threading assembly, which can drive the rope to pass through the folded and deformed opening edge of the mesh bag. The mesh bag threading machine provided by this invention reliably positions and supports the opening of the mesh bag by setting the mesh bag opening support assembly, and automatically folds and shapes the opening edge in conjunction with the mesh bag folding assembly, and then automatically threads the rope in conjunction with the threading assembly. This allows the opening, folding, and threading processes to be connected in an orderly and continuous manner, thereby significantly improving the automation level of the processing process and the overall production efficiency, reducing manual intervention and operational errors; at the same time, the coordinated cooperation of each functional module helps to ensure the consistency of the mesh bag opening shaping and the threading position, improving the stability of product processing quality.

Description

Technical Field

[0001] This invention relates to the field of packaging machinery technology, and in particular to a rope threading machine for mesh bags. Background Technology

[0002] In existing technologies, sealing mesh bags mostly relies on manual threading of the rope or semi-automatic equipment. The process typically includes multiple steps such as opening the bag, folding the edges, threading the rope, and connecting the rope ends. Because mesh bags are soft and the opening is difficult to maintain a stable shape, problems such as bag opening collapse, uneven folding, or rope misalignment can easily occur during the threading process, affecting processing quality and efficiency. Furthermore, traditional equipment often disperses the various processes, requiring multiple manual interventions to transfer the mesh bag between different workstations. This not only results in high labor intensity but also makes it difficult to unify the production cycle, leading to low automation and making it difficult to meet the needs of large-scale continuous production.

[0003] Furthermore, in existing rope-threading devices, the conveying, cutting, and threading of ropes are mostly independent mechanisms with insufficient coordination, easily leading to inconsistent rope lengths, unstable feeding, or threading failures. Rope end connections typically rely on manual knotting or simple heat treatment, resulting in unstable connection quality and affecting the finished product's strength and appearance consistency. Therefore, there is an urgent need for an integrated device that can automatically feed mesh bags, stably support the opening, accurately fold edges, synchronously thread ropes, and reliably heat-seal rope ends, thereby improving processing efficiency, reducing manual intervention, and enhancing product consistency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a rope threading machine for net bags.

[0005] This invention is achieved through the following technical solution: A mesh bag threading machine, the mesh bag threading machine comprising: A mesh bag opening support assembly, wherein the opening edge of the mesh bag can be fitted onto the mesh bag opening support assembly; A mesh bag folding assembly that can drive the mesh bag opening edge on the mesh bag support assembly to fold and deform; The rope-threading assembly drives the rope through the folded and deformed edge of the mesh bag.

[0006] Preferably, the mesh bag support assembly includes a second connecting rod and a plurality of third connecting rods, the plurality of third connecting rods being spaced apart, the second connecting rod and the plurality of third connecting rods being tractively connected, the third connecting rods being able to move closer to or further away from each other, and the ends of the plurality of third connecting rods being able to support the mesh bag.

[0007] Preferably, the mesh bag support assembly further includes a first hinge shaft, a second hinge shaft, and a plurality of hinge rods. The middle portions of two of the hinge rods are hinged to the first hinge shaft. A first slide rail is provided on the second connecting rod. The first hinge shaft is movably connected to the first slide rail. The ends of the hinge rods are hinged to the second hinge shaft. A second slide rail is provided on the third connecting rod. The second hinge shaft is movably connected to the second slide rail, so that the second connecting rod and the third connecting rod are connected in a transmission manner.

[0008] Preferably, the ends of two adjacent hinge rods are hinged to the same second hinge axis, so that the plurality of third connecting rods are connected in a transmission manner.

[0009] Preferably, the two second hinge axes connected to the same third connecting rod are configured as second hinge axis A and second hinge axis B. The mesh bag support assembly further includes a first elastic element, one end of which is connected to the second hinge axis A and the other end of which is connected to the second hinge axis B. The first elastic element can drive the plurality of third connecting rods to move away from each other.

[0010] Preferably, the mesh bag folding assembly includes a second driving member, a left push rod, a third driving member, and a right push rod. The second driving member is connected to the left push rod, and the third driving member is connected to the right push rod. The left and right push rods are disposed on the mesh bag opening assembly. The second driving member can drive the left push rod to extend between two adjacent third connecting rods, and the third driving member can drive the right push rod to extend between two adjacent third connecting rods, so as to fold and deform the edge of the mesh bag opening on the mesh bag opening assembly.

[0011] Preferably, the mesh bag threading machine further includes a mesh bag feeding assembly, and a plurality of mesh bag opening assemblies are connected to the mesh bag feeding assembly. The mesh bag feeding assembly can drive the mesh bag opening assemblies to move to the mesh bag folding assembly and the threading assembly.

[0012] Preferably, the net bag rope threading machine further includes a rope feeding assembly, which can drive the rope to be connected to the rope threading assembly.

[0013] Preferably, the net bag threading machine further includes a rope end heat sealing assembly, which enables the two ends of the rope to be heat-sealed together.

[0014] The beneficial effects of this invention are: The mesh bag drawstring machine provided by this invention reliably positions and supports the opening of the mesh bag by setting a mesh bag opening support component, and automatically folds and shapes the opening edge in conjunction with a mesh bag folding component. Then, it automatically threads the drawstring in conjunction with a drawstring threading component. This allows the opening support, folding, and drawstring threading processes to be connected in an orderly and continuous manner, thereby significantly improving the automation level of the processing process and the overall production efficiency, and reducing manual intervention and operational errors. At the same time, the coordinated cooperation of various functional modules helps to ensure the consistency of the mesh bag opening shape and the drawstring threading position, and improves the stability of product processing quality.

[0015] Furthermore, through the linkage between the second connecting rod and multiple third connecting rods, the third connecting rods can achieve synchronous opening and closing movements under drive. When moving away, they are used to open the opening of the mesh bag for quick fitting and positioning. When moving closer, they cooperate with the folding edge assembly to complete the folding of the opening edge, thereby realizing the switching and coordination of the opening and folding actions, improving the smoothness of process connection and forming effect.

[0016] Furthermore, through the cooperation of the first hinge shaft, the second hinge shaft, the hinge rod, and the slide structure, a stable linkage transmission mechanism is formed, which keeps the movements of multiple third connecting rods consistent, improves the synchronization and stability of the support process, reduces the number of independent transmission components, makes the overall structure more compact, reduces manufacturing and assembly costs, and improves operational reliability.

[0017] Furthermore, by setting a first elastic element between the second hinge shaft A and the second hinge shaft B, multiple third connecting rods can automatically expand outward under elastic action, thus completing the reset and opening actions without additional drive, improving the mechanism's response efficiency, buffering the movement process, reducing wear, and extending service life.

[0018] Furthermore, by setting up a push rod structure with independent left and right drives, the folding assembly can apply opposing forces to the edge of the mesh bag from between adjacent third connecting rods, achieving stable and uniform folding and forming, avoiding the problem of inconsistent folding by manual folding, and improving the controllability and adaptability of the folding process, providing a good foundation for subsequent rope threading.

[0019] Furthermore, by setting up a mesh bag feeding component to drive multiple support components to move sequentially to the folding and rope threading stations, continuous operation and automatic flow of multiple stations can be achieved, reducing manual handling and waiting time, increasing production cycle time, and enhancing the equipment's batch processing capacity and process connection stability.

[0020] Furthermore, the rope feeding assembly enables automatic and continuous rope supply and reliable docking with the rope threading assembly, avoiding errors from manual feeding, improving the continuity and stability of rope threading, reducing downtime for adjustments, and enhancing overall production efficiency.

[0021] Furthermore, by setting up a rope end heat-sealing component to automatically heat-seal the rope ends after threading, a closed rope loop structure is formed, avoiding the loosening and uneven strength problems of traditional knotting methods, improving connection reliability and appearance consistency, and realizing the automation and standardization of rope end processing, further enhancing product quality stability. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a wire rope threading machine for mesh bags according to the present invention; Figure 2 This is a front view structural schematic diagram of a net bag rope threading machine according to the present invention; Figure 3 This is a side view of a rope threading machine for mesh bags according to the present invention. Figure 4 This is a partial structural schematic diagram of a wire rope threading machine for mesh bags according to the present invention; Figure 5 This is a top view schematic diagram of a rope threading machine for mesh bags according to the present invention; Figure 6 This is a three-dimensional structural schematic diagram of the mesh bag feeding component of a mesh bag threading machine according to the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the mesh bag support assembly of a mesh bag threading machine according to the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the mesh bag folding component of a mesh bag threading machine according to the present invention; Figure 9 This is a three-dimensional structural diagram of the rope coil support and rope pushing component of a rope threading machine for mesh bags according to the present invention. Figure 10 This is a three-dimensional structural diagram of the rope clamping component of a rope threading machine for net bags according to the present invention; Figure 11 This is a three-dimensional structural schematic diagram of the rope threading component of a rope threading machine for mesh bags according to the present invention; Figure 12 This is a three-dimensional structural schematic diagram of the rope end heat sealing component of a rope threading machine for mesh bags according to the present invention. Figure 13 This is a schematic diagram of the internal structure of the rope end heat sealing component of a rope threading machine for mesh bags according to the present invention.

[0023] In the diagram: 1. Frame; 2. Mesh bag feeding assembly; 21. First driving component; 22. Drive gear; 23. Fixed shaft; 24. Sleeve; 25. Driven gear; 26. Turntable; 27. Mounting plate; 3. Mesh bag support assembly; 31. First connecting rod; 32. Second connecting rod; 33. First slide rail; 34. Hinge rod; 35. First hinge shaft; 36. Second hinge shaft; 37. First elastic element; 38. Third connecting rod; 39. Second slide rail; 310. Support rod; 311. Second elastic element; 312. Second hinge shaft A; 313. Second hinge shaft B; 4. Mesh bag folding assembly; 41. Second drive component; 42. Left push rod; 43. Third drive component; 44. Right push rod; 45. Third bending plate; 46. Fourth bending plate; 5. Rope feeding assembly; 51. Roller shaft; 52. Roller shaft frame; 53. Guide wheel; 54. Guide component; 55. Rope cutting component; 56. Fourth drive component; 57. Rope clamping component; 58. Fifth drive component; 59. Rope pressing component; 511. First guide wheel; 512. Second guide wheel; 6. Threading assembly; 61. Sixth drive component; 62. First pull cord needle; 63. Second pull cord needle; 7. Rope end heat sealing assembly; 71. Seventh driving component; 72. Eighth driving component; 73. Ninth driving component; 74. First heat sealing block; 75. Second heat sealing block; 81. Bagging station; 82. Observation station; 83. Processing station; 84. Unloading station. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] In the description of the invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on the invention.

[0026] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides a rope threading device for a mesh bag, which includes a frame 1, a mesh bag feeding assembly 2, a mesh bag opening assembly 3, a mesh bag folding assembly 4, a rope feeding assembly 5, a rope threading assembly 6, and a rope end heat sealing assembly 7.

[0028] The frame is used to install other components of the net bag rope threading device.

[0029] Reference Figure 4 , Figure 5 and Figure 6 The mesh bag feeding assembly 2 is used to move the mesh bag to the rope threading station. The mesh bag feeding assembly 2 includes a first drive component 21, a fixed shaft 23, and a connecting component. The first drive component 21 is specifically a motor. The first drive component 21 is fixedly mounted on the frame 1. The fixed shaft 23 is fixedly mounted on the frame 1, and the connecting component is rotatably connected to the fixed shaft 23. The first drive component 21 drives the connecting component to rotate around the fixed shaft 23.

[0030] Specifically, the mesh bag feeding assembly 2 also includes a mounting plate 27, which is fixedly connected to the frame 1. A first driving member 21 is fixedly connected to the mounting plate 27, and the upper end of the fixed shaft 23 is fixedly connected to the frame 1. The connecting member includes a sleeve 24 and a turntable 26. The sleeve 24 is fitted over the fixed shaft 23 and can rotate around the fixed shaft 23. A driven gear 25 is provided on the upper part of the sleeve 24. The output shaft of the first driving member 21 is connected to a driving gear 22, which meshes with the driven gear 25 to enable the first driving member 21 to drive the connecting member. The first driving member 21 can drive the driving gear 22 to rotate, and the driving gear 22 can drive the driven gear 25 and the sleeve 24 to rotate around the fixed shaft 23. A through hole is provided in the middle of the turntable 26. The turntable 26 is fitted over the sleeve 24 and is fixedly connected to the sleeve 24. When the sleeve 24 rotates around the fixed shaft 23, the turntable 26 can rotate accordingly. Multiple mesh bag support assemblies 3 are connected to a turntable 26, and the mesh bag support assemblies 3 can rotate with the turntable 26. In this embodiment, the mesh bag feeding assembly 2 includes four mesh bag support assemblies 3. This arrangement allows the four mesh bag support assemblies 3 to correspond to the bagging station 81, the observation station 82, the processing station 83, and the unloading station 84. At the bagging station 81, the operator can place the mesh bag to be processed onto the mesh bag support assembly 3; at the processing station 83, the operator can perform processing steps such as threading ropes onto the mesh bag on the mesh bag support assembly 3; and at the unloading station 84, the operator can remove the processed mesh bag from the mesh bag support assembly 3.

[0031] Reference Figure 7The mesh bag support assembly 3 is used to connect the mesh bag. The mesh bag support assembly 3 includes a first connecting rod 31, a second connecting rod 32, a hinge rod 34, a first hinge shaft 35, a second hinge shaft 36, a first elastic element 37, a third connecting rod 38, a support rod 310, and a second elastic element 311. The upper end of the first connecting rod 31 is connected to the connector, so that the mesh bag support assembly 3 is connected to the connector. The lower end of the first connecting rod 31 is fixedly connected to the second connecting rod 32. A first slide rail 33 is provided on the second connecting rod 32. Each mesh bag support assembly 3 includes multiple hinge rods 34; in this embodiment, one mesh bag support assembly 3 includes eight hinge rods 34. Every two hinge rods 34 are arranged crosswise; specifically, the middle of each of the two hinge rods 34 is hinged to the first hinge shaft 35, and the upper end of the first hinge shaft 35 is slidably connected to the first slide rail 33. Multiple sets of crosswise hinge rods 34 are arranged along the first slide rail 33. The mesh bag opening assembly 3 includes a plurality of third connecting rods 38 spaced apart, the third connecting rods 38 being perpendicular to the second connecting rods 32. In this embodiment, the mesh bag opening assembly 3 includes five third connecting rods 38. A second slide rail 39 is provided on each third connecting rod 38. The ends of two adjacent hinge rods 34 are hinged to the same second hinge shaft 36, so that the plurality of hinge rods 34 form a continuous intersecting structure. Each third connecting rod 38 is provided with two corresponding second hinge shafts 36, the second connecting shafts being movably connected to the second slide rail 39. The two second hinge shafts 36 connected to the same third connecting rod 38 are designated as second hinge shaft A312 and second hinge shaft B313. One end of a first elastic member 37 is connected to the second hinge shaft A312, and the other end is connected to the second hinge shaft B313. The first elastic member 37 can drive both the second hinge shaft A312 and the second hinge shaft B313 to approach the second connecting rod 32, so that the plurality of third connecting rods 38 move away from each other, allowing the plurality of third connecting rods 38 to open the mesh bag. When the multiple third connecting rods 38 approach each other, the second hinge shaft 36 moves away from the second connecting rod 32 along the second slide rail 39, and the multiple first hinge shafts 35 approach each other. The first elastic member 37 can drive the second hinge shaft 36 to move along the second slide rail 39 towards the second connecting rod 32, so that the multiple third connecting rods 38 move away from each other. Each third connecting rod 38 is provided with two support rods 310, and the support rods 310 are slidably connected to the third connecting rod 38. The two ends of the second elastic member 311 are connected to the two support rods 310 at both ends of the same third connecting rod 38, so that the two support rods 310 move away from each other. The multiple support rods 310 of the mesh bag feeding assembly 2 can support the bag opening of the mesh bag, so that the mesh bag is fitted onto the mesh bag opening assembly 3.

[0032] Reference Figure 4 and Figure 8The mesh bag folding assembly 4 includes a second driving member 41, a left push rod 42, a third driving member 43, and a right push rod 44. The second driving member 41 is fixedly connected to the frame 1. Specifically, the frame 1 is fixedly connected to a first curved plate, and the second driving member 41 is fixedly connected to the first curved plate. The second driving member 41 is specifically a cylinder. Multiple left push rods 42 are connected to the free end of the second driving member 41. Specifically, the free end of the second driving member 41 is connected to the second curved plate, and multiple left push rods 42 are connected to the second curved plate. The number of left push rods 42 is one less than the number of third connecting rods 38 in a mesh bag opening assembly 3. In this embodiment, there are four left push rods 42. Each left push rod 42 is arranged corresponding to two adjacent third connecting rods 38. When the second driving member 41 drives the left push rod 42 close to the mesh bag opening assembly 3, the left push rod 42 can extend between the two adjacent third connecting rods 38, so that the mesh bag opening edge on the mesh bag opening assembly 3 is folded and deformed for subsequent rope threading. The third driving member 43 is fixedly connected to the lower end of the fixed shaft 23. Specifically, the lower end of the fixed shaft 23 is connected to a third curved plate 45, which is connected to the third driving member 43. The third driving member 43 is specifically a cylinder. The free end of the third driving member 43 is connected to multiple right push rods 44. Specifically, the free end of the third driving member 43 is connected to a fourth curved plate 46, and the multiple right push rods 44 are connected to the fourth curved plate 46. The number of right push rods 44 is one less than the number of third connecting rods 38 in a mesh bag opening assembly 3. In this embodiment, there are four right push rods 44. Each right push rod 44 is provided corresponding to two adjacent third connecting rods 38. When the third driving member 43 drives the right push rod 44 to approach the mesh bag opening assembly 3, the right push rod 44 can extend between the two adjacent third connecting rods 38, so that the mesh bag opening edge on the mesh bag opening assembly 3 is folded and deformed for subsequent rope threading.

[0033] Reference Figure 3 , Figure 9 and Figure 10The rope feeding assembly 5 is used to supply rope. The rope feeding assembly 5 includes a rope coil support, a guide wheel 53, a guide 54, a rope cutting component 55, a fourth drive component 56, a rope clamping component 57, a fifth drive component 58, a rope pressing component 59, a first guide wheel 511, and a second guide wheel 512. The rope coil support is used to fix the rope coil. Specifically, the rope coil support includes a roller 51 and a roller frame 52. The bottom of the roller frame 52 is fixedly connected to the frame 1, and both ends of the roller 51 are rotatably connected to the roller frame 52. The rope coil is wound onto the roller 51. The guide wheel 53 is rotatably connected to the frame 1, and the rope end of the rope coil on the roller 51 passes over the guide wheel 53. The guide 54 is fixedly connected to the frame 1. The guide 54 has a through hole, and the rope passes through the through hole after passing over the guide wheel 53. The rope cutting component 55 is used to cut the rope. The specific structure of the rope-cutting component 55 is the same as that of existing rope-cutting devices, so its specific structure will not be described in detail. The rope-cutting component 55 is located on the side of the guide member 54 away from the guide wheel 53, and can cut the rope extending from the hole in the guide member 54. The fourth driving component 56 is specifically a cylinder. The main body of the fourth driving component 56 is fixedly connected to the frame 1, and the fourth driving component 56 is located on the side of the rope-cutting component 55 away from the guide member 54, with its free end facing the rope-cutting component 55. The rope-clamping component 57 is connected to the free end of the fourth driving component 56, and the fourth driving component 56 can drive the rope-clamping component 57 closer to or away from the guide member 54. The rope-clamping component 57 can clamp the rope extending from the guide member 54. The specific structure of the rope-clamping component 57 is the same as that of existing rope-clamping devices, so its specific structure will not be described in detail. The fifth driving component 58 is specifically a cylinder, and its main body is fixedly connected to the frame 1. The rope pressing member 59 is connected to the free end of the fifth driving member 58. The fifth driving member 58 can drive the rope pressing member 59 to move so that the rope pressing member 59 contacts the rope between the rope clamping member 57 and the guide member 54. The fifth driving member 58 can also drive the rope pressing member 59 to move further so that the rope on the rope coil support is unwound. The first guide wheel 511 and the second guide wheel 512 are both rotatably connected to the frame 1, and the first guide wheel 511 and the second guide wheel 512 are spaced apart. When the rope pressing member 59 drives the rope to move, it can make the rope contact the first guide wheel 511 and the second guide wheel 512 to limit the state of the rope stretched by the rope pressing member 59.

[0034] Reference Figure 5 and Figure 11The rope-threading assembly 6 is used to drive the rope through the net bag opening assembly 3 at the processing station 83. The rope-threading assembly 6 includes a sixth drive member 61, a first rope-pulling needle 62, and a second rope-pulling needle 63. The sixth drive member 61 is specifically a lead screw guide rail, which is fixedly connected to the frame 1. The first rope-pulling needle 62 and the second rope-pulling needle 63 are both fixedly connected to the nut of the sixth drive member 61, and are spaced apart. The sixth drive member 61 can drive the first rope-pulling needle 62 and the second rope-pulling needle 63 through the net bag opening edge of the net bag opening assembly 3 at the processing station 83, and move the first rope-pulling needle 62 and the second rope-pulling needle 63 between the first guide wheel 511 and the second guide wheel 512. When the rope-pressing member 59 drives the rope to move, the two ends of the rope can be connected to the rope hooks on the first rope-pulling needle 62 and the second rope-pulling needle 63, respectively. The specific structures of the first pull-cord needle 62 and the second pull-cord needle 63 are the same as those of the pull-cord needle device in the prior art, so their specific structures will not be described in detail.

[0035] Reference Figure 12 and Figure 13 The rope end heat-sealing assembly 7 heats both ends of the rope, causing them to melt and connect. The rope end heat-sealing assembly 7 includes a seventh drive member 71, an eighth drive member 72, a ninth drive member 73, a first heat-sealing block 74, and a second heat-sealing block 75. The seventh drive member 71 is specifically a cylinder, and its main body is fixedly connected to the frame 1. The eighth drive member 72 and the ninth drive member 73 are also cylinders, with their main bodies connected to the free ends of the seventh drive member 71. The first heat-sealing block 74 is connected to the free end of the eighth drive member 72, and the second heat-sealing block 75 is connected to the free end of the ninth drive member 73. The eighth drive member 72 and the ninth drive member 73 can drive the first heat-sealing block 74 and the second heat-sealing block 75 to move closer or further apart. When the first heat-sealing block 74 and the second heat-sealing block 75 move closer together, they can clamp both ends of the rope and heat them, causing them to fuse and connect. The working principle of heat sealing the first heat sealing block 74 and the second heat sealing block 75 is the same as that of heat sealing devices in the prior art, and its specific structure will not be described in detail.

[0036] The working principle of the net bag threading device is as follows: The operator places the net bag to be threaded onto the net bag support assembly 3 at the bag-feeding station 81. Then, the first drive unit 21 moves the net bag support assembly 3 to the processing station 83. At this time, the second drive unit 41 drives the left push rod 42 to move towards the net bag support assembly 3 at the processing station 83, and the third drive unit 43 drives the right push rod 44 to move towards the net bag support assembly 3 at the processing station 83. The left push rod 42 and the right push rod 44 can extend between the third connecting rods 38 to fold and deform the net bag placed on the net bag support assembly 3. Simultaneously, multiple third connecting rods 38 are driven closer together to cooperate with the folding and deformation of the net bag, and the first elastic element 37 is stretched. Subsequently, the sixth drive member 61 drives the first pull cord needle 62 and the second pull cord needle 63 to move, the needles passing through the folded portion of the folded and deformed mesh bag at the processing station 83. Then, the first pull cord needle 62 and the second pull cord needle 63 move between the first guide wheel 511 and the second guide wheel 512. Next, the fourth drive member 56 drives the rope clamping member 57 closer to the guide member 54. Then, the rope clamping member 57 clamps the rope extending from the guide hole of the guide member 54. Then, the fourth drive member 56 drives the rope clamping member 57 away from the guide member 54 to pull the rope out. Then, the fifth drive member 58 drives the rope pressing member 59 to move, causing the rope between the rope clamping member 57 and the guide member 54 to stretch downwards until the rope connects to the pull cord hook of the first pull cord needle 62 and the pull cord hook of the second pull cord needle 63. Then, the sixth drive member 61 drives the first pull cord needle 62 and the second pull cord needle 63 through the mesh bag to pass the rope through the mesh bag, completing the threading process. Then, the seventh drive unit 71 drives the first heat-sealing block 74 and the second heat-sealing block 75 to move to the left and right sides of the rope end passing through the net bag. Next, the eighth drive unit 72 and the ninth drive unit 73 drive the first heat-sealing block 74 and the second heat-sealing block 75 closer together to heat-seal the two ends of the rope, connecting them. Then, the first drive unit 21 drives the net bag opening assembly 3 to move to the unloading station 84, where the operator removes the completed rope-threading and heat-sealing net bag from the net bag opening assembly 3.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A rope-threading machine for mesh bags, characterized in that, include: A mesh bag opening support assembly, wherein the opening edge of the mesh bag can be fitted onto the mesh bag opening support assembly; A mesh bag folding assembly that can drive the mesh bag opening edge on the mesh bag support assembly to fold and deform; The rope-threading assembly drives the rope through the folded and deformed edge of the mesh bag.

2. The mesh bag threading machine according to claim 1, characterized in that, The mesh bag support assembly includes a second connecting rod and a plurality of third connecting rods, which are spaced apart. The second connecting rod and the plurality of third connecting rods are kinetically connected. The third connecting rods can move closer to or further away from each other, and the ends of the plurality of third connecting rods can support the mesh bag.

3. A wire rope threading machine for net bags according to claim 2, characterized in that, The mesh bag support assembly further includes a first hinge shaft, a second hinge shaft, and a plurality of hinge rods. The middle portions of two of the hinge rods are hinged to the first hinge shaft. A first slide rail is provided on the second connecting rod, and the first hinge shaft is movably connected to the first slide rail. The ends of the hinge rods are hinged to the second hinge shaft. A second slide rail is provided on the third connecting rod, and the second hinge shaft is movably connected to the second slide rail, so that the second connecting rod and the third connecting rod are connected by transmission.

4. A wire rope threading machine for net bags according to claim 3, characterized in that, The ends of two adjacent hinge rods are hinged to the same second hinge axis, so that the multiple third connecting rods are connected in a transmission manner.

5. A wire rope threading machine for net bags according to claim 4, characterized in that, The two second hinge axes connected to the same third connecting rod are configured as second hinge axis A and second hinge axis B. The mesh bag support assembly also includes a first elastic element, one end of which is connected to the second hinge axis A and the other end of which is connected to the second hinge axis B. The first elastic element can drive the multiple third connecting rods to move away from each other.

6. A wire rope threading machine for net bags according to claim 3, characterized in that, The mesh bag folding assembly includes a second driving member, a left push rod, a third driving member, and a right push rod. The second driving member is connected to the left push rod, and the third driving member is connected to the right push rod. The left and right push rods are disposed on the mesh bag opening assembly. The second driving member can drive the left push rod to extend between two adjacent third connecting rods, and the third driving member can drive the right push rod to extend between two adjacent third connecting rods, so as to fold and deform the edge of the mesh bag opening on the mesh bag opening assembly.

7. A wire rope threading machine for net bags according to claim 1, characterized in that, The mesh bag threading machine also includes a mesh bag feeding assembly, and a plurality of mesh bag opening assemblies are connected to the mesh bag feeding assembly. The mesh bag feeding assembly can drive the mesh bag opening assemblies to move to the mesh bag folding assembly and the threading assembly.

8. A wire rope threading machine for net bags according to claim 7, characterized in that, The net bag rope threading machine also includes a rope feeding assembly, which can drive the rope to be connected to the rope threading assembly.

9. A wire rope threading machine for net bags according to claim 1, characterized in that, The net bag threading machine also includes a rope end heat sealing assembly, which enables the two ends of the rope to be heat-sealed together.

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