Efficient baling apparatus for tobacco

Abstract

The present disclosure relates to a high-efficiency rod weaving device for tobacco leaves, comprising a frame, a rod weaving device, a conveying device, a discharging device, a clamping device, a transmission device, a detection device and a controller. The conveying device can smoothly transport the tobacco leaves towards the rod weaving device. During the transportation of the tobacco leaves, the clamping device moves away from the rod weaving position and clamps the tobacco leaves, and then continues to move towards the rod weaving position and temporarily places the tobacco leaves on two clamping pieces. At this time, the clamping device is in a clamping state for the tobacco leaves. After that, the rod weaving device operates to weave the rod part of the tobacco leaves, and weave multiple tobacco leaves into one. After the completion of the tobacco leaf rod weaving operation, the clamping device releases the tobacco leaves, and then resets. The clamping device on the other side moves towards the tobacco leaves after the completion of the rod weaving, and presses down the rod part of the tobacco leaves, so that the tobacco leaves fall down to the hanging rod. In this way, the uniform and continuous rod weaving of the tobacco leaves is completed without damaging, dropping or breaking the tobacco leaves.

Description

Technical Field

[0001] This disclosure relates to the field of modern tobacco agricultural machinery, and more specifically, to a high-efficiency stem-binding device for tobacco leaves. Background Technology

[0002] In today's modern tobacco agriculture, tobacco weaving remains an essential step before the initial curing process. With the advancement of mechanization in tobacco farming, tobacco weaving has become a major headache for tobacco farmers. July to September is the busiest month of the year, but due to high labor costs, farmers often have the whole family working together to save on labor costs. They meticulously sort through the mountains of tobacco leaves, then weave them into stems using rope.

[0003] To ensure timely delivery, tobacco farmers often work overtime, but they still inevitably have to work through the night to weave the tobacco stalks, often going hungry, which negatively impacts their health. Furthermore, the tobacco leaves cannot be turned or dragged during the weaving process, as this will cause damage and abrasions. Abraded parts will turn black and become waste leaves after curing, while damaged leaves become substandard products. During the purchasing process, tobacco leaves with broken stems will be downgraded, and severely damaged leaves will be rejected or downgraded. Prolonged storage can also lead to mold growth, so the weaving process must begin with the top leaves, handling them carefully and quickly to ensure quality.

[0004] With the development of modern tobacco industry machinery, many manufacturers have launched various electric tobacco weaving machines on the market. However, these machines are often overly cumbersome and inefficient during the weaving process. Furthermore, they easily damage the tobacco leaves, resulting in substandard weaving quality. Therefore, improving the efficiency and quality of tobacco weaving without damaging the tobacco leaves has become a pressing technical challenge. Summary of the Invention

[0005] The purpose of this disclosure is to provide a high-efficiency bar binding device for tobacco leaves, in order to solve the problems of low bar binding efficiency and easy damage to tobacco leaves in the prior art.

[0006] To achieve the above objectives, this disclosure provides a high-efficiency bar-binding device for tobacco leaves, having a feeding position, a bar-binding position, and a discharging position;

[0007] This high-efficiency styling device includes:

[0008] frame;

[0009] A rod-binding device, located at the rod-binding position, is used to weave the rods of multiple tobacco leaves together with thread;

[0010] The conveying device is configured in two sets and located at both ends of the frame. The conveying device is used to lay the tobacco leaves flat and transfer the tobacco leaves from the feeding position to the bark position.

[0011] The feeding device has a hanging rod perpendicular to the conveying direction of the conveying device, and the hanging rod extends to the bottom of the braiding device; one end of the feeding device extends to the feeding position and the other end extends to the braiding position; wherein, the braiding position between the braiding device and the feeding device is provided with two clamping pieces connected to the frame, the clamping pieces are C-shaped and the two clamping pieces are convex.

[0012] Two sets of clamping devices are configured, each corresponding to one of the conveying devices, and the clamping devices are respectively located on both sides of the bar-making device; the clamping devices are used to clamp the tobacco leaves from the conveying device onto the clamping plate, and to press the tobacco leaves on the clamping plate onto the hanging rod;

[0013] The transmission device includes a drive component and a gear transmission assembly. The output shaft of the drive component is provided with a main drive wheel, which is driven to the clamping device to drive the clamping device to deflect relative to the frame. The main drive wheel is driven to the bar forming device through the gear transmission assembly, so that the bar forming device and the clamping device move in cooperation.

[0014] The detection device, configured in at least two sets, is positioned opposite to the conveying device; the detection device is used to detect the current position information of the tobacco leaves on the conveying device; and

[0015] The controller is communicatively connected to the bar-making device, the conveying device, the feeding device, the clamping device, and the detection device. Based on the current tobacco leaf information, the controller controls the bar-making device, the conveying device, the feeding device, and the clamping device to perform corresponding actions.

[0016] In one possible design, the clamping device includes:

[0017] Clamping element, used to clamp and release tobacco leaves;

[0018] A rack extends parallel to the transmission direction of the conveying device, and teeth are provided on the bottom surface of the rack;

[0019] Two transmission gears are provided, each corresponding to one of the conveying devices, and the transmission gears mesh with the rack; wherein, one end of the transmission gear is rotatably connected to the frame, and the other end is provided with a wheel axle connected to the clamping member; when the rack moves, the transmission gear drives the wheel axle to rotate under the action of the meshing force, so that the clamping member flips relative to the frame;

[0020] The crankshaft disc is coaxially connected to the main drive wheel;

[0021] The crankshaft connecting rod is eccentrically connected to the crankshaft connecting rod via a pin; and

[0022] A crankshaft push-pull shaft, one end of which is connected to the crankshaft connecting rod, and the other end of which is connected to the rack;

[0023] When the main drive wheel rotates, the crankshaft connecting rod drives the crankshaft push-pull shaft to move in a straight line, so that the rack reciprocates relative to the frame.

[0024] In one possible design, the high-efficiency styling device further includes:

[0025] Limit switches are configured in two sets, respectively located on both sides of the frame. Each set of limit switches corresponds one-to-one with the conveying device. Each set of limit switches includes an upper stop switch and a lower stop switch spaced apart, with the upper stop switch located on the side furthest from the bar-forming device.

[0026] Sensors are disposed at both ends of the rack; the sensors and the limit switches are respectively communicatively connected to the controller; when the sensors on the rack pass the upper stop switch, the sensors transmit the sensed signal change to the controller, and the controller controls the movement of the clamping member.

[0027] In one possible design, the clamping element includes:

[0028] A cylinder has an air passage connected to an air source;

[0029] A telescopic claw, connected to the telescopic rod of the cylinder; and

[0030] A rotating claw has one end rotatably connected to the telescopic claw via a pin, and the other end rotatably connected to the housing of the cylinder via a linkage assembly, to form a linkage mechanism.

[0031] Specifically, when the rack moves from the lower stop switch toward the upper stop switch, the cylinder extends to open the telescopic claw relative to the rotating claw; when the rack moves from the upper stop switch toward the lower stop switch, the cylinder retracts to bring the telescopic claw closer to the rotating claw.

[0032] In one possible design, the bar arrangement includes:

[0033] A braiding needle with a thread hole and a thread hook groove;

[0034] The braiding needle transmission mechanism has one end connected to the braiding needle and the other end connected to the gear transmission assembly.

[0035] A hook needle with an upward-protruding tip;

[0036] A hook needle drive mechanism is connected to the hook needle;

[0037] The line hook has a hook tip that protrudes toward the line hook needle;

[0038] A pull-line hook transmission mechanism, which is connected to the pull-line hook; and

[0039] The cam mechanism is connected to the gear transmission assembly.

[0040] The hook-and-pin drive mechanism presses against one end of the cam mechanism, and the pull-hook drive mechanism presses against the other end of the cam mechanism. When the gear drive assembly rotates, the braiding needle moves relative to the hook-and-pin. The gear drive assembly drives the cam mechanism to rotate, so that the hook-and-pin drive mechanism and the pull-hook drive mechanism operate respectively.

[0041] In one possible design, the gear transmission assembly includes:

[0042] The first drive shaft has a first gear and a crankshaft wheel at one end. The crankshaft wheel is eccentrically connected to the braiding needle drive mechanism. When the first gear meshes and rotates, the braiding needle drive mechanism reciprocates relative to the frame.

[0043] The second gear is rotatably connected to the frame, and its two sides mesh with the main drive wheel and the first gear, respectively.

[0044] The third gear is coaxially connected to the first transmission shaft;

[0045] The second drive shaft is equipped with the cam mechanism, and a fourth gear is also provided on the second drive shaft;

[0046] The fifth gear is rotatably connected to the frame, and its two sides are respectively engaged with the third gear and the fourth gear.

[0047] In one possible design, the cam mechanism includes:

[0048] A first cam is fixedly mounted on the second drive shaft; a first groove is provided on the first cam; the hook needle transmission mechanism includes a hook needle pusher, which presses against the side wall of the first cam; when the first cam rotates, its contact surface with the hook needle pusher changes and drives the hook needle to reciprocate along the radial direction of the first cam.

[0049] The second cam is fixedly mounted on the second drive shaft, and the end face of the second cam facing away from the first cam is formed as a chamfer. The pull hook transmission mechanism includes a pull hook push wheel, which presses against the chamfer. When the second cam rotates, the contact surface between the second cam and the pull hook push wheel changes, causing the pull hook transmission mechanism to move along the thickness direction of the second cam.

[0050] The third cam is fixedly mounted on the second drive shaft. The pull hook transmission mechanism also includes a deflector wheel, which presses against the side wall of the third cam. When the third cam rotates, the contact surface between the second cam and the deflector wheel changes, causing the pull hook transmission mechanism to reciprocate.

[0051] In one possible design, the hook-and-pin drive mechanism includes:

[0052] The hook needle pusher presses against the side wall of the first cam;

[0053] A positioning wheel axle is movably connected to the hook needle push wheel, one end of the positioning wheel axle being connected to the hook needle push wheel and the other end being connected to the hook needle; and

[0054] A hook needle spring is connected to the positioning wheel shaft, and the hook needle spring presses against the first cam.

[0055] In one possible design, the pull hook transmission mechanism includes:

[0056] The pull hook pusher presses against the end face of the second cam;

[0057] The deflector wheel presses against the side wall of the third cam;

[0058] Mounting bracket, connected to the rack;

[0059] A pusher frame, one end of which is connected to the mounting frame via a directional shaft and a sliding shaft, and the other end of which is connected to the pull hook push wheel, so that the pusher frame moves closer to or further away from the mounting frame relative to the mounting frame by the forward and backward movement of the pull hook push wheel;

[0060] A curved arm is movably connected to the frame; one end of the curved arm is rotatably connected to the deflection wheel, and the other end of the curved arm is provided with a mounting shaft, the end of which is connected to the pull hook; the curved arm is disposed on the outer periphery of the push frame, and when the push frame moves back and forth, it can push the curved arm to move; when the deflection wheel rotates, it can cause the pull hook to deflect about the mounting shaft as the center.

[0061] In one possible design, the draw hook transmission mechanism further includes:

[0062] A first spring is sleeved on the sliding shaft, and both ends of the first spring abut against the mounting bracket and the push bracket respectively, so that the pull hook push wheel is tightly against the end face of the second cam; and

[0063] The second spring is sleeved on the mounting shaft, and a pull hook bushing is also sleeved on the mounting shaft. The two ends of the second spring press against the pull hook bushing and the crank arm respectively, so that the deflection wheel is in close contact with the side wall of the third cam.

[0064] In one possible design, the braiding needle drive mechanism includes:

[0065] Needle shaft, connected to the braiding needle;

[0066] The crankshaft wheel is connected to the gear transmission assembly for transmission.

[0067] A crankshaft lever, eccentrically connected to the crankshaft wheel; a U-shaped rod, one end rotatably connected to the crankshaft lever, and the other end connected to the pin shaft; and

[0068] A guide sleeve is connected to the frame, and the two ends of the U-shaped rod are inserted into the guide sleeve to move along the guide sleeve.

[0069] In one possible design, the conveying device includes:

[0070] A first motor is connected to the frame, and the first motor is communicatively connected to the controller;

[0071] Two pulleys are configured, one near the barre location and the other at the feeding location; and

[0072] A conveyor belt made of flexible material, wherein the conveyor belt is respectively fitted around the outer periphery of two pulleys;

[0073] The first motor is driven to one of the pulleys, and when it starts, it can drive the conveyor belt to rotate in the direction from the feeding position to the braiding position.

[0074] In one possible design, the conveyor belt is provided with a plurality of stop seats, which are spaced apart along its circumferential direction; the stop seats protrude from the conveyor belt and are located on the side close to the braiding device.

[0075] In one possible design, the feeding device includes:

[0076] Hanging rod;

[0077] A hanging nozzle is located below the pole-forming device, and one end of the hanging pole is placed on the hanging nozzle;

[0078] A slide rail, perpendicular to the conveying direction of the conveying device and connected to the frame, is provided with a sliding groove; and

[0079] A support member is vertically arranged, with its bottom two ends embedded in the sliding groove, and its top connected to the hanging rod. When the hanging rod is subjected to an external force, it drives the support member to move along the sliding groove.

[0080] A push wheel is connected to the frame. The push wheel has an arc-shaped groove and is positioned opposite to the hanging rod.

[0081] In one possible design, the feeding device further includes:

[0082] A second motor is connected to the frame; and

[0083] The pusher wheels are configured in pairs, one above the other. One pusher wheel is driven to the output shaft of the second motor, and the other pusher wheel is connected to the frame through a clamping component. Each pusher wheel has an arc groove that matches the hanging rod, so that the pusher wheel can clamp the hanging rod. When the second motor rotates, it drives the hanging rod to move in a straight line.

[0084] In one possible design, the pusher wheel is formed as a frictional roller; or...

[0085] The push wheel is provided with a horizontal groove, and the hanging rod is provided with a protruding ridge that matches the horizontal groove; or,

[0086] The push wheel is provided with a flange, and the hanging rod is provided with a recess that mates with the flange.

[0087] In one possible design, the high-efficiency styling device further includes:

[0088] A sliding cover, connected to the frame; and

[0089] A protective cover is provided over the grippers of the clamping device. The edge of the protective cover is arc-shaped. The protective cover is disposed opposite to the sliding cover, and the height of the protective cover is lower than that of the sliding cover.

[0090] In one possible design, the side of the conveying device is provided with a leaf discharge plate for limiting the position of the tobacco leaves, and the leaf discharge plate is connected to the frame;

[0091] The bottom of the conveying device is provided with a carrying plate, which is close to the position of the braiding rod.

[0092] This design allows the conveying device to smoothly transport tobacco leaves towards the bar-making device. During the leaf transport, the clamping device moves away from the bar-making position and clamps the tobacco leaves, then continues to move towards the bar-making position and temporarily places the leaves on two clamping plates. At this point, the clamping device is holding the tobacco leaves. Subsequently, the bar-making device operates to weave the tobacco leaf stems, thus weaving multiple tobacco leaves into one piece. Then, the current clamping device releases the tobacco leaf and resets. Meanwhile, the clamping device on the other side moves towards the completed bar-making tobacco leaf and presses down on the stem. Based on the elasticity of the clamping plates, they open under pressure, causing the tobacco leaf to fall downwards onto the hanging rod. The operator can then push the hanging rod out to allow the tobacco leaves to be fed into subsequent processes.

[0093] The above technical solution can effectively weave and fix the braiding thread to the stalk of the tobacco leaf, thereby fixing multiple tobacco leaves and realizing continuous operation. Since the entire operation process only involves the stalk, it can effectively improve the efficiency of tobacco leaf stalking and reduce damage to the tobacco leaves. The tobacco leaf stalking work can be carried out in an orderly manner without damaging the tobacco leaves, reducing material waste and reducing the labor intensity of tobacco farmers.

[0094] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0095] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0096] Figure 1 This is a three-dimensional structural diagram of the high-efficiency bar-binding device for tobacco leaves provided in this disclosure, from one perspective.

[0097] Figure 2 yes Figure 1 Enlarged structural diagram of section A;

[0098] Figure 3 yes Figure 1 Enlarged structural diagram of section B;

[0099] Figure 4 This is a three-dimensional structural diagram of the high-efficiency bar-making equipment for tobacco leaves provided in this disclosure, with part of the frame removed to show the internal structure;

[0100] Figure 5 yes Figure 4 Enlarged structural diagram of section C;

[0101] Figure 6 yes Figure 4 Enlarged structural diagram of section D;

[0102] Figure 7 This is a three-dimensional structural diagram of the high-efficiency bar-making equipment for tobacco leaves provided in this disclosure, with some of the frame and feeding device removed to show the internal structure;

[0103] Figure 8 yes Figure 7 Enlarged structural diagram of section E in the middle;

[0104] Figure 9 yes Figure 7 Enlarged structural diagram of section F in the middle.

[0105] Explanation of reference numerals in the attached figures

[0106] 11-Frame, 12-Clamping plate, 13-Sliding cover, 14-Discharge plate, 15-Carrying plate, 21-Branching needle, 22-Branching needle transmission mechanism, 221-Needle shaft, 222-Crankshaft wheel, 223-Crank rod, 224-U-shaped rod, 225-Guide sleeve, 23-Hook needle, 24-Hook needle spring, 25-Pull hook, 26-Pull hook transmission mechanism, 261-Pull hook push wheel, 262-Deflection wheel, 263-Mounting bracket, 264-Push bracket, 265-Directional shaft, 266-Sliding shaft, 267-First spring, 268-Crank arm, 269-Pull hook bushing, 2690-Second spring, 27-Cam mechanism, 271-First cam, 272-Second cam, 273-Third cam, 3-Conveying device, 31-First motor, 32-Conveying Belt, 4-Discharge device, 41-Hanging rod, 42-Hanging rod nozzle, 43-Slide rail, 44-Support component, 45-Push wheel, 46-Second motor, 47-Clamping component, 5-Clamping device, 51-Clamping component, 511-Cylinder, 512-Telescopic claw, 513-Rotating claw, 514-Connecting rod assembly, 52-Rack, 53-Transmission gear, 54-Crankshaft disc, 55-Crankshaft connecting rod, 56-Crankshaft push-pull shaft, 6-Transmission device, 61-Drive component, 62-Main drive wheel, 63-Gear transmission assembly, 631-First transmission shaft, 632-First gear, 633-Crankshaft wheel, 634-Second gear, 635-Third gear, 636-Fourth gear, 637-Fourth gear, 71-Top dead center switch, 72-Bottom dead center switch, 73-Sensor, 8-Coil. Detailed Implementation

[0107] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0108] According to specific embodiments of this disclosure, a high-efficiency bar-binding device for tobacco leaves is provided. Among them, Figures 1 to 9 One specific embodiment is shown.

[0109] See Figures 1 to 9 As shown, the high-efficiency tobacco bar binding equipment has a feeding position, a binding position, and a discharging position. This high-efficiency binding equipment includes: a frame 11, a binding device, a conveying device 3, a discharging device 4, a clamping device 5, a transmission device 6, a detection device, and a controller.

[0110] A bar-making device is installed at the bar-making position to weave the bar sections of multiple tobacco leaves together with thread. Two sets of conveying devices 3 are configured at both ends of the frame 11. The conveying devices 3 are used to lay the tobacco leaves flat and transfer them from the loading position to the bar-making position. A unloading device 4 has a hanging rod 41 perpendicular to the conveying direction of the conveying device 3, extending below the bar-making device. One end of the unloading device 4 extends to the unloading position, and the other end extends to the bar-making position. Two clamping pieces 12 connected to the frame 11 are provided at the bar-making position between the bar-making device and the unloading device 4. The clamping pieces 12 are C-shaped and convex. Two clamping devices 5 are configured, each corresponding to one of the conveying devices 3, and are located on both sides of the bar-making device. The clamping devices 5 are used to clamp the tobacco leaves from the conveying device 3 to the clamping pieces. The conveyor 3 is equipped with a main drive wheel 62, which is driven by the clamping device 5 to drive the clamping device 5 to deflect relative to the frame 11. The main drive wheel 62 is driven by the gear transmission assembly 63 to drive the bar-making device and the clamping device 5 to move in coordination. The main drive wheel 62 is driven by the gear transmission assembly 63 to drive the bar-making device and the clamping device 5 to move in coordination. The detection device is configured with at least two sets and is set opposite to the conveying device 3. The detection device is used to detect the current position information of the tobacco leaves on the conveying device 3. The controller is communicatively connected to the bar-making device, the conveying device 3, the feeding device 4, the clamping device 5 and the detection device respectively. The controller controls the bar-making device, the conveying device 3, the feeding device 4 and the clamping device 5 to perform corresponding actions according to the current tobacco leaf information.

[0111] With this design, the conveying device 3 can smoothly transport tobacco leaves towards the bar-making device. During the tobacco leaf transport, the clamping device 5 moves away from the bar-making position and clamps the tobacco leaf, then continues to move towards the bar-making position and temporarily places the tobacco leaf on the two clamping plates 12. At this time, the clamping device 5 is in a clamping state on the tobacco leaf. Subsequently, the bar-making device operates to weave the tobacco leaf stem, thereby weaving multiple tobacco leaves into one piece. Then, the current clamping device 5 releases the tobacco leaf and resets. Meanwhile, the clamping device 5 on the other side moves towards the completed bar-making tobacco leaf and presses down on the tobacco leaf stem. Based on the elasticity of the clamping plates 12, they open after being forced, causing the tobacco leaf to fall downward onto the hanging rod 41. The operator can then push out the hanging rod 41 to put the tobacco leaf into the subsequent process.

[0112] The above technical solution can effectively weave and fix the braiding thread to the stalk of the tobacco leaf, thereby fixing multiple tobacco leaves and realizing continuous operation. Since the entire operation process only involves the stalk, it can effectively improve the efficiency of tobacco leaf stalking and reduce damage to the tobacco leaves. The tobacco leaf stalking work can be carried out in an orderly manner without damaging the tobacco leaves, reducing material waste and reducing the labor intensity of tobacco farmers.

[0113] This tobacco bar weaving machine does not damage tobacco leaves during the weaving process. It has a simple structure, is easy to operate, and is convenient and flexible to use. It can produce tobacco leaves that achieve the same effect as traditional hand-woven tobacco, thus better meeting the needs of tobacco farmers.

[0114] In one embodiment provided in this disclosure, the clamping device 5 includes: a clamping member 51 for clamping and releasing tobacco leaves; a rack 52 extending in a direction parallel to the conveying device 3, the bottom surface of the rack 52 having teeth; two transmission gears 53, each gear corresponding to one of the conveying devices 3, the transmission gears 53 meshing with the rack 52; wherein, one end of the transmission gear 53 is rotatably connected to the frame 11, and the other end is provided with a wheel axle connected to the clamping member 51; when the rack 52 moves, the transmission gear 53 drives the wheel axle to rotate under the action of the meshing force, so that the clamping member 51 flips relative to the frame 11; a crankshaft disc 54 coaxially connected to the main drive wheel 62; a crankshaft connecting rod 55 eccentrically connected to the crankshaft connecting rod 223 via a pin; and a crankshaft push-pull shaft 56, one end of which is connected to the crankshaft connecting rod 223, and the other end of which is connected to the rack 52.

[0115] Specifically, when the main drive wheel 62 rotates, the crankshaft disc 54 pushes the crankshaft connecting rod 55 to move. The crankshaft connecting rod 55 drives the crankshaft push-pull shaft 56 to move in a linear direction, so that the rack 52 reciprocates relative to the frame 11. The transmission gear 53 can rotate based on its meshing with the rack 52, thereby causing the clamping member 51 to deflect relative to the frame 11. During this process, one of the clamping members 51 can clamp the tobacco rod to move it from the transmission device to the rod-tying position, while the other clamping member 51 presses the tobacco rod on the clamp 12 down onto the hanging rod 41. In this way, by controlling the sequential movements of the clamping components 51, the next tobacco leaf can be added immediately after the current tobacco leaf is bundled. Furthermore, the tobacco leaves on both sides of the conveyor are clamped and bundled sequentially. This allows sufficient time for workers to place the tobacco leaves on the conveyor, ensuring an uninterrupted supply. Additionally, the clamping components 51 operate in a clamping and pressing manner, enabling the tobacco leaves to be quickly transferred to downstream processes, saving intermediate waiting time. Since the deflection of the clamping components 51 is based on the meshing of the rack 52 and gears, the two clamping components 51 can move synchronously and complete the coordinated operation on the tobacco leaf stalks, improving work efficiency and preventing damage to the tobacco leaves.

[0116] Furthermore, the high-efficiency bar-making equipment also includes: limit switches, configured in two sets and respectively located on both sides of the frame 11, with each set of limit switches corresponding to a one-to-one connection with the conveying device 3. Each set of limit switches includes an upper stop switch 71 and a lower stop switch 72 spaced apart, with the upper stop switch 71 located on the side furthest from the bar-making device; and sensors 73 located at both ends of the rack 52. The sensors 73 and the limit switches are communicatively connected to the controller. When the sensor 73 on the rack 52 passes the upper stop switch 71, the sensor 73 transmits the detected signal change to the controller, which then controls the movement of the clamping member 51. This configuration allows the current position of the rack 52 to be detected through the cooperation of the limit switches and the sensor 73, thereby controlling the movement of the clamping member 51 and ultimately achieving the clamping and releasing actions of the tobacco leaves.

[0117] In one embodiment provided in this disclosure, the clamping member 51 includes: a cylinder 511 having an air passage connected to an air source; a telescopic claw 512 connected to a telescopic rod of the cylinder 511; and a rotating claw 513, one end of which is rotatably connected to the telescopic claw 512 by a pin, and the other end of which is rotatably connected to the housing of the cylinder 511 by a linkage group 514 to form a linkage mechanism; wherein, when the rack 52 moves from the lower stop switch 72 toward the upper stop switch 71, the cylinder 511 extends to open the telescopic claw 512 relative to the rotating claw 513, and when the rack 52 moves from the upper stop switch 71 toward the lower stop switch, the cylinder 511 retracts to close the telescopic claw 512 relative to the rotating claw 513, thereby realizing the clamping and release of the tobacco leaf.

[0118] To prevent damage to the tobacco leaves, both the telescopic claw 512 and the rotating claw 513 are equipped with flexible buffer sleeves. Based on the flexibility of these buffer sleeves, they prevent hard pinching of the tobacco leaves. Specifically, in one embodiment, the buffer sleeves are made of latex, which protects the telescopic claw 512 and the rotating claw 513 while also preventing damage to the tobacco leaves.

[0119] Specifically, during operation, the two transmission gears 53 rotate synchronously clockwise or counterclockwise under the force of the rack 52. The transmission wheel drives the cylinder 511 to rotate. When the clamping member 51 on the left cylinder 511 is in the open state and rotates to the preset position (the junction of the slide groove and the leaf discharge plate 14), the limit switch on the left side of the rack 52 sends a command to the control valve. The control valve closes the dual air pipes of the cylinder 511, supplying air pressure to one of the pipes. The air pressure is then delivered to the left cylinder 511 through a conduit. Under the force of the air pressure, the telescopic rod of the left cylinder 511 extends rapidly, causing the telescopic claw 512 to extend linearly. At the same time, under the force of the telescopic rod of the cylinder 511, the rotating claw 513 forms a clamp-like structure at the hinge front of the telescopic claw 512 and the rotating claw 513, clamping the tobacco stem from the left conveying device 3. Thus, the unfolding (release) and closing (clamping) of the clamping member 51 are realized.

[0120] In one embodiment provided in this disclosure, the braiding device includes: a braiding needle 21 with a thread hole and a hook groove; a braiding needle transmission mechanism 22, one end of which is connected to the braiding needle 21 and the other end is drive-connected to a gear transmission assembly 63; a hook needle 23 with an upwardly protruding needle tip; a hook needle 23 transmission mechanism connected to the hook needle 23; a pull hook 25 with a hook tip protruding toward the hook needle 23; a pull hook transmission mechanism 26 connected to the pull hook 25; and a cam mechanism 27 drive-connected to the gear transmission assembly 63.

[0121] The hook needle 23 transmission mechanism presses against one end of the cam mechanism 27, and the pull hook transmission mechanism 26 presses against the other end of the cam mechanism 27. When the gear transmission assembly 63 rotates, the braiding needle 21 moves relative to the hook needle 23. The gear transmission assembly 63 drives the cam mechanism 27 to rotate, so that the hook needle 23 transmission mechanism and the pull hook transmission mechanism 26 operate respectively.

[0122] This configuration allows the braiding needle 21, hook needle 23, and pull hook 25 to move sequentially in a preset order, based on the kinematic coordination of the braiding needle transmission mechanism 22, the hook needle 23, and the pull hook transmission mechanism 26, even when only one output power is provided. This enables the braiding thread to be braided and bound to the tobacco stem, thereby fixing the tobacco stem.

[0123] Specifically, the gear transmission assembly 63 includes: a first transmission shaft 631, one end of which is provided with a first gear 632 and a crankshaft wheel 222. The crankshaft wheel 222 is eccentrically connected to the braiding needle transmission mechanism 22. When the first gear 632 meshes and rotates, the braiding needle transmission mechanism 22 reciprocates relative to the frame 11; a second gear 634, rotatably connected to the frame 11, with its two sides meshing with the main drive wheel 62 and the first gear 632 respectively; a third gear 635, coaxially connected to the first transmission shaft 631; a second transmission shaft, provided with a cam mechanism 27, and also provided with a fourth gear 636; and a fifth gear, rotatably connected to the frame 11, with its two sides meshing with the third gear 635 and the fourth gear 636 respectively. This arrangement divides the power of the main drive wheel 62 into three transmission routes, which respectively drive the braiding needle 21, the hook needle 23, and the pull hook 25 to move sequentially in a preset order, which helps to ensure the effectiveness and coordination of motion transmission.

[0124] In one embodiment provided in this disclosure, the cam mechanism 27 includes: a first cam 271, which is fixedly mounted on a second transmission shaft; the first cam 271 is provided with a first groove; the hook needle 23 transmission mechanism includes a hook needle 23 pusher wheel, which presses against the side wall of the first cam 271; when the first cam 271 rotates, the contact surface between it and the hook needle 23 pusher wheel changes and drives the hook needle 23 to reciprocate along the radial direction of the first cam 271. The second cam 272 is fixedly mounted on the second drive shaft, and the end face of the second cam 272 facing away from the first cam 271 is formed as a chamfer. The pull hook transmission mechanism 26 includes a pull hook push wheel 261, which presses against the chamfer. When the second cam 272 rotates, the contact surface between the second cam 272 and the pull hook push wheel 261 changes, causing the pull hook transmission mechanism 26 to move along the thickness direction of the second cam 272. The third cam 273 is fixedly mounted on the second drive shaft, and the pull hook transmission mechanism 26 also includes a deflection wheel 262, which presses against the side wall of the third cam 273. When the third cam 273 rotates, the contact surface between the second cam 272 and the deflection wheel 262 changes, causing the pull hook transmission mechanism 26 to reciprocate. Thus, the linear reciprocating motion of the hook needle 23, the linear motion of the pull hook 25, and the deflection motion are achieved in this way. In this way, the braiding needle 21, the hook needle 23, and the pull hook 25 can move in a certain order, thereby realizing the braiding action on the tobacco stem.

[0125] Specifically, the transmission mechanism of the hook needle 23 includes: a hook needle 23 pusher wheel that presses against the side wall of the first cam 271; a positioning wheel shaft that is movably connected to the hook needle 23 pusher wheel, with one end connected to the hook needle 23 pusher wheel and the other end connected to the hook needle 23; and a hook needle spring 24 that is connected to the positioning wheel shaft and presses against the first cam 271. Thus, the hook needle 23 is pressed against the first cam 271 by the change in the edge contour of the first cam 271, thereby enabling the hook needle 23 to reciprocate in a linear direction.

[0126] Specifically, the pull hook transmission mechanism 26 includes: a pull hook push wheel 261 pressing against the end face of the second cam 272; a deflection wheel 262 pressing against the side wall of the third cam 273; a mounting bracket 263 connected to the frame 11; and a push frame 264, one end of which is movably connected to the mounting bracket 263 via a directional shaft 265, and the other end of which is connected to the pull hook push wheel 261, so that the push frame 264 is driven relative to the mounting bracket 272 by the back-and-forth movement of the pull hook push wheel 261. 63. Approaching or moving away; a curved arm 268 is movably connected to the frame 11; one end of the curved arm 268 is rotatably connected to a deflector wheel 262, and the other end of the curved arm 268 is provided with a mounting shaft, the end of which is connected to a pull hook 25; the curved arm 268 is located on the outer periphery of the push frame 264, and when the push frame 264 moves back and forth, it can push the curved arm 268 to move; when the deflector wheel 262 rotates, it can cause the pull hook 25 to deflect around the mounting shaft. In this way, the pull hook 25 can move back and forth and can also deflect relatively, thereby realizing the hooking and pulling action of the braided wire.

[0127] Furthermore, the pull hook transmission mechanism 26 also includes: a first spring 267, sleeved on the mounting shaft, with both ends of the first spring 267 pressing against the mounting bracket 263 and the push bracket 264 respectively, so that the pull hook push wheel 261 is in close contact with the end face of the second cam 272; and a second spring 2690, sleeved on the mounting shaft, on which a pull hook bushing 269 is also sleeved, with both ends of the second spring 2690 pressing against the pull hook bushing 269 and the crank arm 268 respectively, so that the deflection wheel 262 is in close contact with the side wall of the third cam 273. With this design, the first spring 267 helps the pull hook 25 return to its original position after moving back and forth; while the second spring 2690 helps the pull hook 25 return to its original position after deflection.

[0128] The specific motion process can be summarized as follows: A first cam 271 is mounted on the second drive shaft near the fourth gear 636. A hook needle pusher wheel, which cooperates with the first cam 271, is installed at the tail end of the hook needle. A hook needle spring, movably mounted on the frame 11, is installed in the middle of the hook needle. The hook needle spring presses against the tail end of the hook needle, causing the hook needle pusher wheel at the tail end of the hook needle to be in close contact with the first cam 271. The concave and convex changes of the first cam 271 drive the hook needle pusher cam to move, and the movement of the hook needle pusher wheel drives the hook needle to reciprocate. This achieves the hooking and releasing of line by the hook needle.

[0129] Mounting bracket 263 is fixed on frame 11. Sliding shaft 266 sleeve is fixedly mounted on mounting bracket 263. Sliding shaft 266 is installed inside sliding shaft 266 sleeve. Orienting shaft 265 sleeve is mounted parallel to sliding shaft 266 on mounting bracket 263. Orienting shaft 265 is installed inside orienting shaft 265 sleeve. Fixing plates and mounting bracket 263 are mounted parallel to both ends of orienting shaft 265 and sliding shaft 266. First spring 267 is installed around sliding shaft 266 sleeve. Pull hook bushing 269 is fixedly mounted on mounting bracket 263. Pull hook 25 and crank arm 268 are mounted in pull hook bushing 269 through shaft. Deflection wheel 262 is installed at the tail end of crank arm 268. Second spring 2690 is installed around pull hook bushing 269. Second spring 2690 ensures that deflection wheel 262 on crank arm 268 is in close contact with third cam 273. The rotation of the concave and convex surfaces of third cam 273 causes the pull line to undulate, causing pull hook 25 to move up and down.

[0130] The pull hook 25 push rod wheel is fixedly mounted on the fixed plate. The extension and retraction of the first spring 267 causes the pull hook 25 push rod wheel to press tightly against the second cam 272. The rotation of the second cam 272 causes the pull hook 25 push rod wheel to move back and forth with the concave and convex surfaces of the second cam 272, driving the entire fixed plate to slide within the sleeves of the directional shaft 265 and the sliding shaft 266. Under the action of the second cam 272 and the third cam 273, the pull hook 25 hooks, pulls, and releases the line up, down, forward, and backward.

[0131] In this disclosure, the braiding needle transmission mechanism 22 includes: a needle shaft 221 connected to the braiding needle 21; a crankshaft wheel 222, driven by a gear transmission assembly 63; a crank rod 223 eccentrically connected to the crankshaft wheel 222; a U-shaped rod 224, one end of which is rotatably connected to the crank rod 223 and the other end of which is connected to the needle shaft 221; and a guide sleeve 225 connected to the frame 11. Both ends of the U-shaped rod 224 are inserted into the guide sleeve 225 to move along the guide sleeve 225. In this way, when the main drive wheel 62 rotates, the gear transmission assembly 63 can transmit synchronously, thereby enabling the crankshaft wheel 222 to drive the crank rod 223 to move, thereby causing the U-shaped rod 224 to move in the guide sleeve 225, and thus driving the needle shaft 221 to move, thereby realizing the adjustment of the movement state of the braiding needle 21.

[0132] In one embodiment provided in this disclosure, the conveying device 3 includes: a first motor 31 connected to the frame 11 and communicatively connected to a controller; two pulleys, one near the bark-making position and the other at the feeding position; and a conveyor belt 32 made of flexible material, which is respectively sleeved on the outer circumference of the two pulleys. The first motor 31 is drivenly connected to one of the pulleys, and when it starts, it drives the conveyor belt 32 to rotate in the direction from the feeding position to the bark-making position, thereby realizing the transport of tobacco leaves. In practical applications, workers stand beside the conveyor belt 32 and lay the tobacco leaves flat on the conveyor belt 32, so that the tobacco leaves are delivered towards the position of the bark-making device by the rotation of the conveyor belt 32. This design not only facilitates feeding but also makes the tobacco leaves neatly arranged, which is convenient for the clamping device 5 to hold.

[0133] Furthermore, the conveyor belt 32 is provided with multiple stop seats, which are spaced apart along its circumferential direction. The stop seats protrude from the conveyor belt 32 and are located on the side close to the bark-making device. This allows the bark of the tobacco leaf to be clamped between two stop seats, thus quantitatively placing the tobacco leaf. This not only improves the smoothness of the tobacco leaf during movement but also limits the clamping amount of the clamping device 5 each time, preventing the tobacco leaf from falling off due to insufficient quantity or damaging the bark due to excessive quantity.

[0134] In one embodiment provided in this disclosure, the feeding device 4 includes: a hanging rod 41; a hanging rod nozzle 42, disposed below the rod winding device, with one end of the hanging rod 41 placed on the hanging rod nozzle 42; a sliding rail 43, disposed perpendicular to the transmission direction of the conveying device 3 and connected to the frame 11, with a sliding groove on the sliding rail 43; and a support member 44, disposed vertically, with both ends of the bottom of the support member 44 embedded in the sliding groove, and the top of the support member 44 connected to the hanging rod 41, wherein the hanging rod 41, when subjected to external force, drives the support member 44 to move along the sliding groove; and a push wheel 45, connected to the frame 11, with an arc-shaped groove on the push wheel 45, and the push wheel 45 disposed at a position opposite to the hanging rod 41.

[0135] With this configuration, when the hanging rod 41 is pushed, the support member 44 can move along the slide groove, so that the woven tobacco leaves can be continuously laid down on the hanging rod 41, allowing the tobacco leaves to be spread out evenly.

[0136] Furthermore, the feeding device 4 also includes: a second motor 46 connected to the frame 11; and two push wheels 45, arranged vertically and vertically, one of which is connected to the output shaft of the second motor 46, and the other push wheel 45 is connected to the frame 11 through a clamping member 47; wherein, each push wheel 45 has an arc groove that matches the hanging rod 41 so that the push wheel 45 can clamp the hanging rod 41; when the second motor 46 rotates, it drives the hanging rod 41 to move in a straight line, thereby realizing the automatic adjustment of the position of the hanging rod 41.

[0137] In this disclosure, the push wheel 45 is formed as a roller with friction, thereby driving the hanging rod 41 to move by friction.

[0138] In another embodiment, the push wheel 45 is provided with a horizontal groove, and the hanging rod 41 is provided with a protrusion that matches the horizontal groove, so that the hanging rod 41 can move smoothly as the push wheel 45 rotates based on the cooperation of the horizontal groove and the protrusion.

[0139] In another embodiment, the push wheel 45 is provided with a flange, and the hanging rod 41 is provided with a recess that mates with the flange, thereby driving the hanging rod 41 to move effectively based on the mate between the flange and the recess.

[0140] In this disclosure, the high-efficiency tobacco bar binding device further includes: a sliding cover 13 connected to the frame 11; and a protective cover covering the grippers of the clamping device 5. The edge of the protective cover is arc-shaped, and the protective cover is positioned opposite to the sliding cover 13, with the height of the protective cover being lower than that of the sliding cover 13. The design of the sliding cover 13 can restrict the movement of the tobacco bar when the clamping device 5 is holding it, which helps to flatten tobacco bar stems of inconsistent lengths. The protective cover can provide a certain degree of protection for the clamping device 5, that is, to prevent the tobacco bar from getting stuck in the drive mechanism of the clamping device 5, causing obstruction to the movement of the clamping device 5. Therefore, the design of the sliding cover 13 and the protective cover ensures the safety and consistency of the tobacco bar during the transfer process to a certain extent.

[0141] Furthermore, the side of the conveying device 3 is provided with a leaf discharge plate 14 for restricting the position of the tobacco leaves, and the leaf discharge plate 14 is connected to the frame 11. In this way, when the tobacco leaves move, the leaf discharge plate 14 can play a certain role in restraining and restricting the position of the tobacco leaves, which can not only prevent the tobacco leaves from slipping, but also avoid the tobacco leaves from piling up haphazardly.

[0142] In this disclosure, the bottom of the conveying device 3 is provided with a carrying plate 15, which is close to the bark. This design ensures that even if tobacco leaves fall during the conveying process, they can be caught by the carrying plate 15, allowing the tobacco leaves to be flattened and processed again, thus avoiding waste caused by tobacco leaves falling to the ground.

[0143] In one embodiment provided in this disclosure, the high-efficiency braiding device further includes a coil 8 and a wire loop. The wire loop can be formed into any suitable structure and is fixed to the frame 11 to constrain the path of the braided wire. The wire on the coil 8 passes through the wire loop, thereby continuously feeding the wire in a smooth transmission manner.

[0144] In the embodiments provided in this disclosure, the detection device can also be configured as any suitable position detection instrument such as a laser displacement sensor, an infrared ranging sensor, or radar. Those skilled in the art can make flexible choices based on the technical concept of this disclosure.

[0145] In the embodiments provided in this disclosure, the controller is configured as a PLC (Programmable Logic Controller). Furthermore, the controller is mounted on rack 11.

[0146] In other embodiments, the controller may also be an integrated circuit chip with signal processing capabilities.

[0147] In implementation, the aforementioned functions can be accomplished through integrated logic circuits in the controller hardware or through software instructions. The controller can also be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. Those skilled in the art can obtain these through conventional improvements based on existing technology.

[0148] The bar-forming device, conveying device 3, unloading device 4, clamping device 5, detection device, and controller can transmit data via various well-known wireless transmission protocols in the art, such as GPRS, WiFi, and Bluetooth, thereby reducing the laying of signal cables. Of course, wired data transmission can also be achieved through communication cables, etc., and this invention does not limit this.

[0149] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

Claims

1. A high-efficiency rod-binding device for tobacco leaves, characterized in that, This high-efficiency bar-making equipment has a feeding position, a bar-making position, and a discharging position. The high-efficiency bar-making equipment includes: frame; A rod-binding device, located at the rod-binding position, is used to weave the rods of multiple tobacco leaves together with thread; The conveying device is configured in two sets and located at both ends of the frame. The conveying device is used to lay the tobacco leaves flat and transfer the tobacco leaves from the feeding position to the bark position. The feeding device has a hanging rod perpendicular to the conveying direction of the conveying device, and the hanging rod extends to the bottom of the braiding device; one end of the feeding device extends to the feeding position and the other end extends to the braiding position; wherein, the braiding position between the braiding device and the feeding device is provided with two clamping pieces connected to the frame, the clamping pieces are C-shaped and the two clamping pieces are convex. Two sets of clamping devices are configured, each corresponding to one of the conveying devices, and the clamping devices are respectively located on both sides of the bar-making device; the clamping devices are used to clamp the tobacco leaves from the conveying device onto the clamping plate, and to press the tobacco leaves on the clamping plate onto the hanging rod; The transmission device includes a drive component and a gear transmission assembly. The output shaft of the drive component is provided with a main drive wheel, which is driven to the clamping device to drive the clamping device to deflect relative to the frame. The main drive wheel is driven to the bar forming device through the gear transmission assembly, so that the bar forming device and the clamping device move in cooperation. The detection device, configured in at least two sets, is positioned opposite to the conveying device; the detection device is used to detect the current position information of the tobacco leaves on the conveying device; and The controller is communicatively connected to the bar-making device, the conveying device, the feeding device, the clamping device, and the detection device. Based on the current tobacco leaf information, the controller controls the bar-making device, the conveying device, the feeding device, and the clamping device to perform corresponding actions.

2. The high-efficiency stem-binding device for tobacco leaves according to claim 1, characterized in that, The clamping device includes: Clamping element, used to clamp and release tobacco leaves; A rack extends parallel to the transmission direction of the conveying device, and teeth are provided on the bottom surface of the rack; Two transmission gears are provided, each corresponding to one of the conveying devices, and the transmission gears mesh with the rack; one end of the transmission gear is rotatably connected to the frame, and the other end is provided with a wheel axle connected to the clamping member; when the rack moves, the transmission gear drives the wheel axle to rotate under the action of the meshing force, so that the clamping member flips relative to the frame; The crankshaft disc is coaxially connected to the main drive wheel; The crankshaft connecting rod is eccentrically connected to the crankshaft disc via a pin; and A crankshaft push-pull shaft, one end of which is connected to the crankshaft connecting rod, and the other end of which is connected to the rack; When the main drive wheel rotates, the crankshaft connecting rod drives the crankshaft push-pull shaft to move in a straight line, so that the rack reciprocates relative to the frame.

3. The high-efficiency stem-binding device for tobacco leaves according to claim 2, characterized in that, The high-efficiency bar-setting device also includes: Limit switches are configured in two sets, respectively located on both sides of the frame. Each set of limit switches corresponds one-to-one with the conveying device. Each set of limit switches includes an upper stop switch and a lower stop switch spaced apart, with the upper stop switch located on the side furthest from the bar-forming device. Sensors are disposed at both ends of the rack; the sensors and the limit switches are respectively communicatively connected to the controller; when the sensors on the rack pass the upper stop switch, the sensors transmit the sensed signal change to the controller, and the controller controls the movement of the clamping member.

4. The high-efficiency stem-binding device for tobacco leaves according to claim 3, characterized in that, The clamping element includes: A cylinder has an air passage connected to an air source; A telescopic claw, connected to the telescopic rod of the cylinder; and A rotating claw has one end rotatably connected to the telescopic claw via a pin, and the other end rotatably connected to the housing of the cylinder via a linkage assembly, to form a linkage mechanism. Specifically, when the rack moves from the lower stop switch toward the upper stop switch, the cylinder extends to open the telescopic claw relative to the rotating claw; when the rack moves from the upper stop switch toward the lower stop switch, the cylinder retracts to bring the telescopic claw closer to the rotating claw.

5. The high-efficiency stem-binding device for tobacco leaves according to any one of claims 1 to 4, characterized in that, The bar-setting device includes: A braiding needle with a thread hole and a thread hook groove; The braiding needle transmission mechanism has one end connected to the braiding needle and the other end connected to the gear transmission assembly. A hook needle with an upward-protruding tip; A hook needle drive mechanism is connected to the hook needle; The line hook has a hook tip that protrudes toward the line hook needle; A pull-line hook transmission mechanism, which is connected to the pull-line hook; and The cam mechanism is connected to the gear transmission assembly. The hook-and-pin drive mechanism presses against one end of the cam mechanism, and the pull-hook drive mechanism presses against the other end of the cam mechanism. When the gear drive assembly rotates, the braiding needle moves relative to the hook-and-pin. The gear drive assembly drives the cam mechanism to rotate, so that the hook-and-pin drive mechanism and the pull-hook drive mechanism operate respectively.

6. The high-efficiency stem-binding device for tobacco leaves according to claim 5, characterized in that, The gear transmission assembly includes: The first drive shaft has a first gear and a crankshaft wheel at one end. The crankshaft wheel is eccentrically connected to the braiding needle drive mechanism. When the first gear meshes and rotates, the braiding needle drive mechanism reciprocates relative to the frame. The second gear is rotatably connected to the frame, and its two sides mesh with the main drive wheel and the first gear, respectively. The third gear is coaxially connected to the first transmission shaft; The second drive shaft is equipped with the cam mechanism, and a fourth gear is also provided on the second drive shaft; The fifth gear is rotatably connected to the frame, and its two sides are respectively engaged with the third gear and the fourth gear.

7. The high-efficiency stem-binding device for tobacco leaves according to claim 6, characterized in that, The cam mechanism includes: A first cam is fixedly mounted on the second drive shaft; a first groove is provided on the first cam; the hook needle transmission mechanism includes a hook needle pusher, which presses against the side wall of the first cam; when the first cam rotates, its contact surface with the hook needle pusher changes and drives the hook needle to reciprocate along the radial direction of the first cam. The second cam is fixedly mounted on the second drive shaft, and the end face of the second cam facing away from the first cam is formed as a chamfer. The pull hook transmission mechanism includes a pull hook push wheel, which presses against the chamfer. When the second cam rotates, the contact surface between the second cam and the pull hook push wheel changes, causing the pull hook transmission mechanism to move along the thickness direction of the second cam. The third cam is fixedly mounted on the second drive shaft. The pull hook transmission mechanism also includes a deflector wheel, which presses against the side wall of the third cam. When the third cam rotates, the contact surface between the third cam and the deflector wheel changes, causing the pull hook transmission mechanism to reciprocate.

8. The high-efficiency stem-binding device for tobacco leaves according to claim 7, characterized in that, The hook needle transmission mechanism includes: The hook needle pusher presses against the side wall of the first cam; A positioning wheel axle is movably connected to the hook needle push wheel, one end of the positioning wheel axle being connected to the hook needle push wheel and the other end being connected to the hook needle; and A hook needle spring is connected to the positioning wheel shaft, and the hook needle spring presses against the first cam.

9. The high-efficiency stem-binding device for tobacco leaves according to claim 7, characterized in that, The pull hook transmission mechanism includes: The pull hook pusher presses against the end face of the second cam; The deflector wheel presses against the side wall of the third cam; Mounting bracket, connected to the rack; A pusher frame, one end of which is connected to the mounting frame via a directional shaft and a sliding shaft, and the other end of which is connected to the pull hook push wheel, so that the pusher frame moves closer to or further away from the mounting frame relative to the mounting frame by the forward and backward movement of the pull hook push wheel; A curved arm is movably connected to the frame; one end of the curved arm is rotatably connected to the deflection wheel, and the other end of the curved arm is provided with a mounting shaft, the end of which is connected to the pull hook; the curved arm is disposed on the outer periphery of the push frame, and when the push frame moves back and forth, it can push the curved arm to move; when the deflection wheel rotates, it can cause the pull hook to deflect about the mounting shaft as the center.

10. The high-efficiency stem-binding device for tobacco leaves according to claim 9, characterized in that, The draw hook transmission mechanism also includes: A first spring is sleeved on the sliding shaft, and both ends of the first spring abut against the mounting bracket and the push bracket respectively, so that the pull hook push wheel is tightly against the end face of the second cam; and The second spring is sleeved on the mounting shaft, and a pull hook bushing is also sleeved on the mounting shaft. The two ends of the second spring press against the pull hook bushing and the crank arm respectively, so that the deflection wheel is in close contact with the side wall of the third cam.

11. The high-efficiency stem-binding device for tobacco leaves according to claim 5, characterized in that, The braiding needle drive mechanism includes: Needle shaft, connected to the braiding needle; The crankshaft wheel is connected to the gear transmission assembly for transmission. The crankshaft lever is eccentrically connected to the crankshaft wheel; A U-shaped rod, one end of which is rotatably connected to the crank rod, and the other end of which is connected to the needle shaft; and A guide sleeve is connected to the frame, and the two ends of the U-shaped rod are inserted into the guide sleeve to move along the guide sleeve.

12. The high-efficiency rod-binding device for tobacco leaves according to any one of claims 1 to 4, characterized in that, The conveying device includes: A first motor is connected to the frame, and the first motor is communicatively connected to the controller; Two pulleys are configured, one near the bracing bar position and the other located at the feeding position; and A conveyor belt made of flexible material, wherein the conveyor belt is respectively fitted around the outer periphery of two pulleys; The first motor is driven to one of the pulleys, and when it starts, it can drive the conveyor belt to rotate in the direction from the feeding position to the braiding position.

13. The high-efficiency stem-binding device for tobacco leaves according to claim 12, characterized in that, The conveyor belt is provided with a plurality of stop seats, which are arranged at intervals along its circumferential direction; the stop seats protrude from the conveyor belt and are located on the side close to the braiding device.

14. The high-efficiency rod-binding device for tobacco leaves according to any one of claims 1 to 4, characterized in that, The feeding device includes: Hanging rod; A hanging nozzle is located below the pole-forming device, and one end of the hanging pole is placed on the hanging nozzle; A slide rail, perpendicular to the conveying direction of the conveying device and connected to the frame, is provided with a sliding groove; and A support member is vertically arranged, with its bottom two ends embedded in the sliding groove, and its top connected to the hanging rod. When the hanging rod is subjected to an external force, it drives the support member to move along the sliding groove. A push wheel is connected to the frame. The push wheel has an arc-shaped groove and is positioned opposite to the hanging rod.

15. The high-efficiency stem-binding device for tobacco leaves according to claim 14, characterized in that, The feeding device further includes: A second motor is connected to the frame; and The pusher wheels are configured in pairs, one above the other. One pusher wheel is driven to the output shaft of the second motor, and the other pusher wheel is connected to the frame through a clamping component. Each pusher wheel has an arc groove that matches the hanging rod, so that the pusher wheel can clamp the hanging rod. When the second motor rotates, it drives the hanging rod to move in a straight line.

16. The high-efficiency stem-binding device for tobacco leaves according to claim 15, characterized in that, The pusher wheel is formed as a roller with friction; or... The push wheel is provided with a horizontal groove, and the hanging rod is provided with a protruding ridge that matches the horizontal groove; or, The push wheel is provided with a flange, and the hanging rod is provided with a recess that mates with the flange.

17. The high-efficiency stem-binding device for tobacco leaves according to claim 1, characterized in that, The high-efficiency bar-setting device also includes: A sliding cover, connected to the frame; and A protective cover is provided over the grippers of the clamping device. The edge of the protective cover is arc-shaped. The protective cover is disposed opposite to the sliding cover, and the height of the protective cover is lower than that of the sliding cover.

18. The high-efficiency stem-binding device for tobacco leaves according to claim 1, characterized in that, The side of the conveying device is provided with a leaf discharge plate for limiting the position of the tobacco leaves, and the leaf discharge plate is connected to the frame; The bottom of the conveying device is provided with a carrying plate, which is close to the position of the braiding rod.

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