A pipeline type tobacco leaf rod making device and a tobacco leaf rod making method thereof

Abstract

The application discloses a pipeline type tobacco leaf rod weaving device and a tobacco weaving method thereof, and belongs to the field of tobacco processing technology.The pipeline type tobacco leaf rod weaving device comprises a conveying unit, a clamping unit, a weaving unit and a control unit.The conveying unit comprises a first conveying belt, a second conveying belt and a U-shaped clamp.The clamping unit comprises a driving mechanism and a pushing claw.The pushing claw is located at the end of the first conveying belt, and the driving mechanism can drive the pushing claw to reciprocate along the direction perpendicular to the conveying direction of the first conveying belt.The weaving unit comprises a mechanical arm, a rod weaving device and an identification mechanism.The rod weaving device comprises a thread lifting rod, a thread wheel and a binding thread.The thread lifting rod is arranged at the end of the mechanical arm, and the thread lifting rod is provided with a thread hole.The one end of the binding thread is threaded through the thread hole, and the other end is wound on the thread wheel.The identification mechanism is used for identifying the head end and the tail end of the tobacco rod.The control unit comprises a controller, and the first conveying belt, the second conveying belt, the driving mechanism and the mechanical arm are electrically connected with the controller.The pipeline type tobacco leaf rod weaving device can realize the pipeline operation of the batch tobacco rod binding process, and improve the work efficiency.The pipeline type tobacco leaf rod weaving device solves the problem that the prior art cannot meet the large batch pipeline operation.

Description

Technical Field

[0001] This invention relates to an assembly line type tobacco leaf binding device and its binding method, belonging to the technical field of tobacco leaf processing and methods. Background Technology

[0002] Currently, the weaving of tobacco leaves into cigar sticks is done manually during the tobacco drying process, which is labor-intensive, time-consuming, and inefficient. With the development of modern tobacco agriculture, farmers are planting on an increasingly larger scale, making it difficult to hire workers, resulting in low efficiency and high costs.

[0003] Patent document (CN102845824B) discloses an electric tobacco binding machine, including a frame. An electronic control system and a speed-regulating motor are connected to the frame via wires. The speed-regulating motor drives a tobacco rod transmission system and two binding thread transmission systems. The tobacco rod and binding thread transmission systems are located in a transmission housing on the frame. A support rod is provided on one side of the frame, and a crossbeam with a horizontal slide rail is provided between the support rod and the transmission housing. A hanging rod that can move along the slide rail is suspended in the slide rail of the crossbeam, and a hanging ring is provided at the lower end of the hanging rod. This solution can realize the binding of tobacco leaves. However, the above solution can only bind one tobacco rod at a time, requiring manual intervention for replacement, which cannot meet the application scenarios of large-scale assembly line operations. Summary of the Invention

[0004] Based on the above, the present invention provides a streamlined tobacco bark binding device and a tobacco binding method thereof to solve the problem that the prior art cannot meet the requirements of large-scale streamlined tobacco binding operations.

[0005] The technical solution of this invention is: a streamlined tobacco leaf binding device, comprising:

[0006] The conveying unit includes a first conveyor belt, a second conveyor belt, and U-shaped clips. The first conveyor belt and the second conveyor belt are horizontally aligned, and there is a predetermined distance between the end of the first conveyor belt and the beginning of the second conveyor belt. The U-shaped clips are spaced apart at the middle positions of the first conveyor belt and the second conveyor belt.

[0007] The clamping unit includes a drive mechanism and pushers. The pushers are located on both sides of the end of the first conveyor belt, and the pushers on both sides are staggered. The pushers are a predetermined distance away from the conveying table of the first conveyor belt. The drive mechanism can drive the pushers to reciprocate along the conveying direction perpendicular to the first conveyor belt.

[0008] The wire-binding unit includes a robotic arm, a wire-binding device, and an identification mechanism. The robotic arm is located on one side between the end of the first conveyor belt and the beginning of the second conveyor belt. The wire-binding device includes a wire-taking rod, a wire reel, and a binding wire. The wire-taking rod is disposed at the end of the robotic arm and has a wire hole. One end of the binding wire passes through the wire hole, and the other end is wound around the wire reel. The identification mechanism is installed at the end of the robotic arm and is used to identify the beginning and end of the cigarette rod.

[0009] The control unit includes a controller, and the first conveyor belt, the second conveyor belt, the drive mechanism, and the robotic arm are all electrically connected to the controller.

[0010] In one example, both the first conveyor belt and the second conveyor belt are provided with cigarette rod placement area markings and cigarette handle positioning markings. The cigarette rod placement area markings are located in the middle area of ​​the conveyor belt along the conveying direction, and the cigarette handle positioning markings are located on both sides of the cigarette rod placement area markings, with the cigarette handle positioning markings on both sides alternately staggered.

[0011] In one example, the U-shaped clip is installed at the designated area for placing the cigarette holder.

[0012] In one example, the drive mechanism is a pneumatic push rod that is laterally fixed to the frame, and the pusher is mounted on the free end of the pneumatic push rod.

[0013] In one example, the pusher is a rubber claw with an arc-shaped groove in the middle of its free end.

[0014] In one example, the identification mechanism is a color recognition sensor, with color start and end marks at both ends of the cigarette holder, and the color start and end marks at both ends of the cigarette holder are set to different colors.

[0015] In one example, the bar braider also includes a cord holder mounted on the top of the middle section of the robotic arm, through which the binding wire passes.

[0016] In one example, the robotic arm has at least four degrees of freedom.

[0017] The present invention also provides a method for weaving tobacco using the assembly line type tobacco weaving device, the method comprising:

[0018] S1, place the tobacco rod in the U-shaped clamp of the first conveyor belt, place the tobacco leaves on both sides of the tobacco rod, and make the end of the tobacco stem slightly higher than the top of the tobacco rod;

[0019] S2, the controller controls the first and second conveyor belts to start, driving the tobacco rod and tobacco leaves forward. When the identification mechanism detects the beginning of the tobacco rod, it controls the first and second conveyor belts to stop. At this time, the beginning of the tobacco rod exceeds the end of the first conveyor belt and is suspended in the air. The drive mechanism drives the pusher to extend and press the tobacco handle against the tobacco rod. The mechanical arm is controlled to wrap the binding wire around the beginning of the tobacco rod.

[0020] S3, the drive mechanism drives the pusher to retract, the controller controls the first and second conveyor belts to move the tobacco rod and tobacco leaves forward by one work station, the drive mechanism drives the pusher to extend and press the tobacco stem against the tobacco rod, and controls the robotic arm to move along the S-shape to wrap around the fixed tobacco stem.

[0021] S4. Repeat step S3. When the identification mechanism detects the end of the cigarette rod, the controller controls the first and second conveyor belts to move forward a predetermined distance, so that the tail end of the cigarette rod is suspended above the head end of the second conveyor belt. The controller then controls the robotic arm to wrap the binding wire around the tail end of the cigarette rod.

[0022] In one example, when the first tobacco stick is being braided, once the identification mechanism detects the beginning of the tobacco stick, a manual person ties the binding thread to that end.

[0023] The beneficial effects of this invention are as follows: This device completes the conveying of tobacco leaves and tobacco stems through a first conveyor belt and a second conveyor belt. An identification mechanism identifies the beginning and end of the tobacco stems, which is used to initiate the stem binding process by the binding machine. An interval is set between the first and second conveyor belts, sufficient to allow the robotic arm to bind the head and tail of the tobacco stems. Alternating push claws are arranged on both sides to temporarily fix the tobacco stems, facilitating the binding operation of the binding machine driven by the robotic arm. This solution enables a streamlined process for binding batches of tobacco leaves, improving work efficiency and solving the problem of existing technologies being unable to meet the requirements of large-scale streamlined operations. This invention is rationally designed, simple in structure, highly automated, convenient, quick, saves a significant amount of labor, improves production efficiency, matches the development of modern tobacco agriculture, is highly practical, and easy to promote and apply. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the assembly line tobacco bark making device from one perspective.

[0025] Figure 2 This is another schematic diagram of the assembly line tobacco leaf binding device;

[0026] Figure 3 This is an enlarged schematic diagram of the braiding unit;

[0027] Figure 4 This is an enlarged schematic diagram of the free end of the robotic arm;

[0028] Figure label:

[0029] Conveying unit

[0030] 11 Frame, 12 First conveyor belt, 13 Second conveyor belt, 14 U-shaped clip, 15 Cigarette rod placement area marker, 16 Cigarette rod positioning marker;

[0031] Clamping unit

[0032] 21 Drive mechanism, 22 pusher, 221 arc-shaped groove;

[0033] braiding unit

[0034] 31. Robotic arm; 32. Bar stringer; 33. Identification mechanism; 34. Color start and end markers.

[0035] 321 Line take-up lever, 322 Line rope holder, 323 Line reel, 324 Line binding. Detailed Implementation

[0036] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Please see Figures 1 to 4 This embodiment provides a streamlined tobacco bark winding device, which includes a conveying unit, a clamping unit, a winding unit, and a control unit.

[0038] The conveying unit includes a frame 11, a first conveyor belt 12, a second conveyor belt 13, and U-shaped clips 14. The first conveyor belt 12 and the second conveyor belt 13 are mounted on the frame 11, and are horizontally aligned with each other, having the same height and width. A predetermined space exists between the end of the first conveyor belt 12 and the beginning of the second conveyor belt 13 to accommodate braiding. U-shaped clips 14 are installed at intervals in the middle of the first and second conveyor belts 12 and 13, with the clip openings facing upwards. The cigarette holder can be placed inside the U-shaped clip 14, which provides temporary fixation for the cigarette holder and prevents displacement. In this embodiment, both the first conveyor belt 12 and the second conveyor belt 13 are belt conveyors.

[0039] To improve tobacco weaving efficiency, both the first conveyor belt 12 and the second conveyor belt 13 are equipped with tobacco stem placement area markers 15 and tobacco handle positioning markers 16. The tobacco stem placement area markers 15 are located in the middle area of ​​the conveyor belts along the conveying direction. U-shaped clips 14 are installed at the tobacco stem placement area markers 15. The tobacco handle positioning markers 16 are located on both sides of the tobacco stem placement area markers 15, and the two sides of the tobacco handle positioning markers 16 are alternately staggered. In this embodiment, the tobacco handle positioning markers 16 are two strip-shaped markers. When placing tobacco leaves, the tobacco handle is located between the two strip-shaped markers, thus ensuring that the tobacco leaves are placed in a standardized manner, facilitating subsequent weaving processing.

[0040] The clamping unit includes a drive mechanism 21 and pushers 22. The drive mechanism 21 is a pneumatic push rod, which is horizontally mounted on the frame 11. The pushers 22 are mounted on the free end of the pneumatic push rod and are installed on both sides of the end of the first conveyor belt 12, with at least two pushers 22 on each side, staggered from each other. The pushers 22 are a predetermined distance from the conveyor surface of the first conveyor belt 12, slightly higher than the conveyor surface but lower than the top of the tobacco stick, so as to secure the handle to the tobacco stick. The pushers 22 are rubber claws, with an arc-shaped groove 221 in the middle of their free end. The arc-shaped groove 221 cooperates with the tobacco stick to press the tobacco stick against the tobacco stick, so that the tobacco stick is exposed and fixed, facilitating subsequent pipe binding.

[0041] The binding unit includes a robotic arm 31, a binding device 32, and an identification mechanism 33. The robotic arm 31 is mounted on one side of the position between the end of the first conveyor belt 12 and the beginning of the second conveyor belt 13. The robotic arm 31 has at least four degrees of freedom to allow for attitude adjustment and prevent collision interference during binding. The binding device 32 includes a thread take-up lever 321, a rope holder 322, a rope reel 323, and a binding thread 324. The thread take-up lever 321 is mounted at the end of the robotic arm 31 and has a thread hole. Multiple rope holders 322 are mounted at the top center of the robotic arm 31. One end of the binding thread 324 extends outward through the thread hole, and the other end passes through the rope holder 322 and is wound around the rope reel 323. The thread take-up lever 321 prevents collision interference with other objects during binding, and the rope holder 322 provides support and prevents the binding thread 324 from getting tangled on the robotic arm 31. An identification mechanism 33 is installed at the end of the robotic arm 31 to identify the head and tail of the cigarette rod. In this embodiment, the identification mechanism 33 is a color recognition sensor, and color start and end marks 34 are installed at both ends of the cigarette rod, with the start and end marks 34 being different colors, such as yellow and blue. When the identification mechanism 33 identifies the color start and end mark 34 at the head of the cigarette rod, it controls the wire braiding device 32 to begin wrapping and binding the head of the cigarette rod. When the identification mechanism 33 identifies the color start and end mark 34 at the tail of the cigarette rod, it controls the wire braiding device 32 to begin wrapping and binding the tail of the cigarette rod. It should be noted that when binding the head and tail of the cigarette rod, the robotic arm 31 adjusts its posture, tilting the wire take-up lever 321. The robotic arm 31 drives the wire take-up lever 321 to rotate around the axis of the cigarette rod, wrapping the binding thread 324 around the cigarette rod.

[0042] The control unit includes a controller. The first conveyor belt 12, the second conveyor belt 13, the pneumatic push rod, and the robotic arm 31 are all electrically connected to the controller, and the corresponding actions are controlled by the controller.

[0043] The tobacco-binding method of the above-mentioned assembly line type tobacco-binding device is as follows:

[0044] S1, place the tobacco rod in the U-shaped card 14 of the first conveyor belt 12, lay the tobacco leaves on both sides of the tobacco rod, i.e., at the tobacco stem positioning mark 16, and make the tobacco stem head slightly higher than the top of the tobacco rod.

[0045] S2, the controller starts the first conveyor belt 12 and the second conveyor belt 13, which move the tobacco rod and tobacco leaves forward. When the color recognition sensor detects the color start and end mark 34 at the beginning of the tobacco rod, it controls the first conveyor belt 12 and the second conveyor belt 13 to stop. At this time, the beginning of the tobacco rod exceeds the end of the first conveyor belt 12 and is suspended in the air. The pneumatic push rod drives the push claw 22 to extend and press the tobacco handle against the tobacco rod. The controller controls the robotic arm 31 to rotate around the axis of the tobacco rod to wrap the binding wire 324 around the beginning of the tobacco rod.

[0046] S3, the pneumatic pusher drives the pusher 22 to retract, and the controller controls the first conveyor belt 12 and the second conveyor belt 13 to move the tobacco stem and tobacco leaves forward by one set of stations. The drive mechanism 21 drives the pusher 22 to extend and press the tobacco stem against the tobacco stem, so that the end of the tobacco stem extends upward above the top of the tobacco stem. The control robot arm 31 moves along an S-shape to wind the fixed tobacco stem. In this embodiment, one set of stations refers to the distance between the two ends of the tobacco leaves currently fixed by the pusher 22.

[0047] S4. Repeat step S3. When the color recognition sensor detects the color start and end mark 34 at the end of the cigarette rod, the controller controls the first conveyor belt 12 and the second conveyor belt 13 to move forward a predetermined distance (the distance between the two conveyor belts), so that the tail end of the cigarette rod is suspended above the head end of the second conveyor belt 13. At the same time, the robotic arm 31 drives the braiding device 32 to move forward. The robotic arm 31 adjusts its posture to wrap and bind the tail end of the cigarette rod, thus completing one process.

[0048] It should be noted that during assembly line production, the binding of the first tobacco stick's head needs to be done manually. After the tail of subsequent tobacco sticks is bound, the binding thread 324 is not cut; the binding thread 324 is processed directly for the next tobacco stick. Before binding the head of the next tobacco stick, move it a distance greater than the distance between the two tobacco sticks, so that the binding thread 324 is pulled out a longer distance, and then return it to the tobacco stick head. At this time, the longer binding thread 324 hangs down naturally, making it easier to bind and wrap the heads of subsequent tobacco sticks. After the final processing is completed, the binding thread 324 between adjacent tobacco sticks is cut manually.

[0049] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for weaving tobacco using a streamlined tobacco weaving device, characterized in that, The bar-tying device includes: The conveying unit includes a first conveyor belt (12), a second conveyor belt (13), and U-shaped clips (14). The first conveyor belt (12) and the second conveyor belt (13) are horizontally aligned, and there is a predetermined distance between the end of the first conveyor belt (12) and the beginning of the second conveyor belt (13). The U-shaped clips (14) are spaced apart at the middle positions of the first conveyor belt (12) and the second conveyor belt (13). The clamping unit includes a drive mechanism (21) and pushers (22). The pushers (22) are located on both sides of the end of the first conveyor belt (12), and the pushers (22) on both sides are staggered. The pushers (22) are a predetermined distance away from the conveying table of the first conveyor belt (12). The drive mechanism (21) can drive the pushers (22) to reciprocate along the conveying direction perpendicular to the first conveyor belt (12). The wire-binding unit includes a robotic arm (31), a wire-binding device (32), and an identification mechanism (33). The robotic arm (31) is located on one side between the end of the first conveyor belt (12) and the beginning of the second conveyor belt (13). The wire-binding device (32) includes a wire-taking rod (321), a wire reel (323), and a binding wire (324). The wire-taking rod (321) is located at the end of the robotic arm (31) and has a wire hole. One end of the binding wire (324) passes through the wire hole, and the other end is wound around the wire reel (323). The identification mechanism (33) is installed at the end of the robotic arm (31) and is used to identify the beginning and end of the cigarette rod. The control unit includes a controller, and the first conveyor belt (12), the second conveyor belt (13), the drive mechanism (21) and the robotic arm (31) are all electrically connected to the controller; The cigarette weaving method of the braiding device includes: S1, place the tobacco rod in the U-shaped clip (14) of the first conveyor belt (12), place the tobacco leaves on both sides of the tobacco rod, and make the end of the tobacco stem slightly higher than the top of the tobacco rod; S2, the controller controls the first conveyor belt (12) and the second conveyor belt (13) to start, driving the tobacco rod and tobacco leaves to move forward. When the identification mechanism (33) detects the beginning of the tobacco rod, it controls the first conveyor belt (12) and the second conveyor belt (13) to stop. At this time, the beginning of the tobacco rod exceeds the end of the first conveyor belt (12) and is suspended in the air. The drive mechanism (21) drives the pusher (22) to extend and press the tobacco handle against the tobacco rod. The control robot arm (31) moves to wrap the binding wire (324) around the beginning of the tobacco rod. S3, the drive mechanism (21) drives the pusher (22) to retract, the controller controls the first conveyor belt (12) and the second conveyor belt (13) to move the tobacco rod and tobacco leaves forward by one work station, the drive mechanism (21) drives the pusher (22) to extend and press the tobacco stem against the tobacco rod, and controls the robotic arm (31) to move along the S-shape to wrap around the fixed tobacco stem. S4. Repeat step S3. When the identification mechanism (33) detects the end of the cigarette rod, the controller controls the first conveyor belt (12) and the second conveyor belt (13) to move forward a predetermined distance, so that the tail end of the cigarette rod is suspended above the head end of the second conveyor belt (13), and controls the robotic arm (31) to wrap the binding wire (324) around the tail end of the cigarette rod.

2. The tobacco weaving method of the assembly line type tobacco weaving device according to claim 1, characterized in that, Both the first conveyor belt (12) and the second conveyor belt (13) are provided with a cigarette rod placement area mark (15) and a cigarette handle positioning mark (16). The cigarette rod placement area mark (15) is set in the middle area of ​​the conveyor belt along the conveying direction. The cigarette handle positioning mark (16) is set on both sides of the cigarette rod placement area mark (15), and the cigarette handle positioning marks (16) on both sides are alternately staggered.

3. The tobacco weaving method of the assembly line type tobacco weaving device according to claim 2, characterized in that, The U-shaped card (14) is installed at the marked (15) of the cigarette rod placement area.

4. The tobacco weaving method of the assembly line tobacco weaving device according to claim 1, characterized in that, The drive mechanism (21) is a pneumatic push rod that is horizontally fixed on the frame (11), and the push claw (22) is installed on the free end of the pneumatic push rod.

5. The tobacco weaving method of the assembly line type tobacco weaving device according to claim 4, characterized in that, The pusher (22) is a rubber claw with an arc-shaped groove (221) in the middle of its free end.

6. The tobacco weaving method of the assembly line tobacco weaving device according to claim 1, characterized in that, The identification mechanism (33) is a color recognition sensor, with color start and end marks (34) at both ends of the cigarette rod, and the color start and end marks (34) at both ends of the cigarette rod are set to different colors.

7. The tobacco weaving method of the assembly line type tobacco weaving device according to claim 1, characterized in that, The bar braider (32) also includes a rope frame (322), which is installed at the top of the middle section of the robotic arm (31), and the binding wire (324) passes through the rope frame (322).

8. The tobacco weaving method of the assembly line type tobacco weaving device according to claim 1, characterized in that, The robotic arm (31) has at least four degrees of freedom.

9. The tobacco weaving method of the assembly line type tobacco weaving device according to claim 1, characterized in that, When the first cigarette rod is being made into a cigarette, after the identification mechanism (33) detects the first end of the cigarette rod, the binding thread (324) is manually tied to the first end.

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