A tobacco leaf sorting device

Abstract

The present invention discloses a tobacco leaf sorting device, which includes a hoist, a first conveyor, a second conveyor, a differential roller table, a combined belt and a sorting and discharging machine. The hoist is used to convey tobacco leaves to the feeding end of the first conveyor. The discharging end of the first conveyor is connected to the second conveyor. The differential roller table is used to differentially separate the tobacco leaves conveyed by the second conveyor. The combined belt is used to adjust the position of the tobacco leaves conveyed by the differential roller table. The sorting and discharging machine is used to collect the tobacco leaves conveyed by the combined belt. The tobacco leaf sorting device disclosed by the present invention adjusts the direction and spacing of tobacco leaves through the first conveyor and the second conveyor, then adjusts the position of the tobacco leaves through the differential roller table and the combined belt, and finally classifies and sorts and collects the tobacco leaves through the sorting and discharging machine, realizing the automatic classification and sorting of tobacco leaves, improving the efficiency of tobacco leaf production, sorting and preparation, avoiding problems such as manual sorting operation errors, and reducing the production cost of tobacco leaf production.

Description

Technical Field

[0001] The present invention relates to the field of tobacco equipment, and particularly to a tobacco leaf sorting equipment. Background Art

[0002] Since there are many types of tobacco and tobacco is also graded, and the grading of tobacco depends on tobacco leaves. During the production and manufacturing process of tobacco, it is necessary to classify tobacco leaves according to grades to classify tobacco according to grades. However, the existing tobacco leaf classification methods are relatively traditional and mostly require manual operation. Manual operation involves the experience of operators, especially the operation of judging by the eyes of operators. Even for experienced operators, there are often large differences in the grading of tobacco leaves, resulting in large errors in the grading of tobacco leaves, reducing the quality and efficiency of tobacco leaf grading, and the manual grading cost is high.

[0003] Therefore, how to improve the quality and efficiency of tobacco leaf sorting is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a tobacco leaf sorting equipment, which can realize automatic classification and sorting of tobacco leaves and improve the production and sorting efficiency of tobacco leaves.

[0005] To solve the above technical problems, the present invention provides a tobacco leaf sorting equipment, including a hoist, a first conveyor, a second conveyor, a differential roller table, a combined belt and a sorting and discharging machine. The hoist is used to convey tobacco leaves to the feeding end of the first conveyor. The discharging end of the first conveyor is connected to the second conveyor. The differential roller table is used to differentially separate the tobacco leaves conveyed by the second conveyor. The combined belt is used to adjust the position of the tobacco leaves conveyed by the differential roller table. The sorting and discharging machine is used to collect the tobacco leaves conveyed by the combined belt.

[0006] Preferably, it further includes a detection and grading device arranged at the feeding end of the sorting and discharging machine. The detection and grading device is used to detect and classify the tobacco leaves conveyed by the combined belt.

[0007] Preferably, a first screen is provided at the feeding end of the first conveyor.

[0008] Preferably, a plurality of transverse partitions are further arranged in the first conveyor.

[0009] Preferably, a second screen is arranged in the second conveyor, and guide plates are arranged on both sides of the second screen. The height of the guide plate at one end of the feeding port of the second conveyor is higher than that at the discharging port end.

[0010] Preferably, the differential roller conveyor comprises a workbench, a loading belt conveyor arranged at the front end of the workbench and a unloading belt conveyor and a roller conveyor at the rear end, and the roller conveyor is located between the loading belt conveyor and the unloading belt conveyor.

[0011] Preferably, the bottom of the workbench is also provided with anchor bolts for adjusting the height.

[0012] Preferably, the combined belt comprises a frame and a plurality of parallel belts arranged on the frame, and the belts are respectively controlled by corresponding motors.

[0013] Preferably, the number of the belts is three, and one end of the belts are staggered in a step-like manner.

[0014] Preferably, the sorting and unloading machine includes a multi-stage conveying mechanism, a baffle mechanism and a silo, and gaps are provided between adjacent conveying mechanisms. The baffle mechanism is arranged above the gap, and the silo is correspondingly arranged below the gap.

[0015] The tobacco sorting equipment provided by the present invention mainly includes an elevator, a first conveyor, a second conveyor, a differential roller, a combined belt and a sorting feeder. Among them, the elevator is used to lift the tobacco leaves that are broken up and bundled to convey them to the feed end of the first conveyor, the first conveyor is used to break up the received tobacco leaves that are stuck together, and adjust the direction of the tobacco leaves to be horizontal so as to increase the distance between the tobacco leaves, the discharge end of the first conveyor is connected to the second conveyor, the second conveyor is used to adjust the received tobacco leaves to a longitudinal posture, and discharge the longitudinally transmitted tobacco leaves into the differential roller, the differential roller is used to perform differential separation of the tobacco leaves conveyed by the second conveyor, the combined belt is used to adjust the position of the tobacco leaves conveyed by the differential roller, and the sorting feeder is used to collect the tobacco leaves conveyed by the combined belt. The tobacco leaf sorting equipment disclosed in the present invention adjusts the direction and spacing of tobacco leaves through a first conveyor and a second conveyor, then adjusts the position of the tobacco leaves through a differential roller and a combined belt, and finally classifies, sorts and collects the tobacco leaves through a sorting feeder, thereby realizing automatic classification and sorting of tobacco leaves, improving the efficiency of tobacco leaf production, sorting and preparation, avoiding problems such as errors in manual sorting operations, and reducing the production cost of tobacco leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the overall structure of a specific implementation method provided by the present invention;

[0018] Figure 2 is Figure 1 the schematic structural diagram of the first conveyor shown

[0019] Figure 3 is Figure 1 the schematic structural diagram of the second conveyor shown

[0020] Figure 4 is Figure 1 the schematic structural diagram of the differential roller table shown

[0021] Figure 5 is Figure 1 the schematic structural diagram of the combined belt shown

[0022] Figure 6 is Figure 1 the schematic structural diagram of the sorting and blanking machine shown

[0023] Among them, Figures 1-6 in:

[0024] elevator - 1, first conveyor - 2, first screen - 201, horizontal baffle - 202, second conveyor - 3, second screen - 301, guide plate - 302, differential roller table - 4, workbench - 401, feeding belt conveyor - 402, blanking belt conveyor - 403, roller table - 404, anchor bolt - 405, combined belt - 5, frame - 501, belt - 502, first belt - 5021, second belt - 5022, third belt - 5023, sorting and blanking machine - 6, multi - stage conveying mechanism - 601, baffle mechanism - 602, storage bin - 603, detection and grading device - 7. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 6 , Figure 1 which is the overall structural diagram of a specific embodiment provided by the present invention.

[0027] In a specific embodiment provided by the present invention, it mainly includes a hoist 1, a first conveyor 2, a second conveyor 3, a differential roller table 4, a combined belt 5, and a sorting and discharging machine 6. The hoist 1 is used to convey tobacco leaves to the feeding end of the first conveyor 2. The discharging end of the first conveyor 2 is connected to the second conveyor 3. The differential roller table 4 is used to differentially separate the tobacco leaves conveyed by the second conveyor 3. The combined belt 5 is used to adjust the position of the tobacco leaves conveyed by the differential roller table 4. The sorting and discharging machine 6 is used to collect the tobacco leaves conveyed by the combined belt 5.

[0028] Among them, the hoist 1 is used to lift the bundled tobacco leaves after being scattered and convey them to the feeding end of the first conveyor 2. The first conveyor 2 is used to break up the received adhered tobacco leaves and adjust the direction of the tobacco leaves to be horizontal, so as to increase the distance between the tobacco leaves. The discharging end of the first conveyor 2 is connected to the second conveyor 3. The second conveyor 3 is used to adjust the received tobacco leaves to a longitudinal posture and discharge the longitudinally conveyed tobacco leaves into the differential roller table 4. The differential roller table 4 is used to differentially separate the tobacco leaves conveyed by the second conveyor 3. The combined belt 5 is used to adjust the position of the tobacco leaves conveyed by the differential roller table 4. The sorting and discharging machine 6 is used to collect the tobacco leaves conveyed by the combined belt 5.

[0029] Specifically, in the actual application process, the tobacco leaves are conveyed to the feeding port of the hoist 1. The tobacco leaves have undergone preliminary bundled processing before being conveyed to the hoist 1. The hoist 1 lifts the bundled and scattered tobacco leaves and conveys them to the feeding end of the first conveyor 2. The first conveyor 2 breaks up the received adhered tobacco leaves and adjusts the direction of the tobacco leaves to be horizontal through vibration, increasing the distance between the tobacco leaves to ensure the normal progress of subsequent conveyance. As the tobacco leaves are conveyed by the first conveyor 2, they reach the second conveyor 3. The second conveyor 3 adjusts the received tobacco leaves to a longitudinal posture through a guiding effect. Then, the tobacco leaves adjusted to a longitudinal posture are discharged into the differential roller table 4. The differential roller table 4 differentially separates the tobacco leaves conveyed by the second conveyor 3 and conveys the tobacco leaves to the combined belt 5 by a conveying method of slow first and then fast. The combined belt 5 adjusts the position of the tobacco leaves by applying different conveying speeds to different positions of the tobacco leaves, conveys the tobacco leaves to the sorting and discharging machine 6. The sorting and discharging machine 6 detects and grades the tobacco leaves and collects the tobacco leaves according to different grades, completing the grading classification and collection and sorting of the tobacco leaves.

[0030] In order to optimize the advantage that the tobacco leaf sorting equipment in the above embodiments can ensure more accurate grading of tobacco leaves, the tobacco leaf sorting equipment further includes a detection and grading device 7 provided at the feeding end of the sorting and discharging machine 6. The detection and grading device 7 is used to detect and classify the tobacco leaves conveyed by the combined belt 5. The detection and grading device 7 is provided at the feeding end of the sorting and discharging machine 6 to detect and grade the incoming tobacco leaves. The detection and grading device 7 sends the detected tobacco leaf information to the first controller, and a photoelectric switch is provided upstream of each baffle mechanism 602. When the photoelectric switch detects a tobacco leaf, it transmits the tobacco leaf signal to the second controller of the corresponding baffle mechanism 602. The second controller controls the baffle mechanism 602 to block the tobacco leaf according to the detected tobacco leaf information, preventing the tobacco leaf from continuing to slide forward. A discharging mechanism is provided at the lower end of each baffle mechanism 602. The discharging mechanism drives the tobacco leaf blocked by the baffle mechanism 602 to be discharged from the gap of the conveying mechanism 601 of the sorting and discharging machine 6 and fall into the receiving box provided at the lower end of each gap to collect the tobacco leaf. By providing the detection and grading device 7, the specifications and sizes of each tobacco leaf are detected, and different baffle mechanisms 602 are set for different grades to collect the tobacco leaves, improving the accuracy of tobacco leaf grading.

[0031] Based on the high requirements for tobacco leaf grading, a first screen 201 is provided at the feeding end of the first conveyor 2; and a plurality of transverse partitions 202 are further provided in the first conveyor 2. A first screen 201 is provided on the bottom plate at the feeding port of the first conveyor 2 to increase the friction between the adhered tobacco leaves and the surface of the first screen 201, facilitating the vibration and dispersion of the tobacco leaves. And a plurality of transverse partitions 202 are provided in the conveying direction of the first conveyor 2. The attitude of the tobacco leaves is adjusted through each transverse partition 202 to ensure that the tobacco leaves move horizontally. Specifically, the transverse partition 202 is an inclined plate inclined in the conveying direction. As the first conveyor 2 conveys, the tobacco leaves move backward along the transverse partition 202. Under the action of the inclined plate and the self-weight of the tobacco leaves, the tobacco leaves are adjusted to a horizontal attitude. It should be noted that the number of the transverse partitions 202 is 6, and the height of the transverse partitions 202 decreases in sequence along the tobacco leaf conveying direction. While realizing the horizontal movement of the tobacco leaves, the aggregation of the tobacco leaves is avoided. As the height of the transverse partition 202 decreases, the difficulty for the tobacco leaves to cross the partition decreases, facilitating the acceleration of the conveyance of the tobacco leaves. Of course, the number of the transverse partitions 202 at the production site can be determined according to the weight of the production task, and no specific limitation is made here.

[0032] Similarly, a second sieve 301 is provided inside the second conveyor 3, and guide plates 302 are provided on both sides of the second sieve 301. The height of one end of the guide plate 302 at the feed inlet of the second conveyor 3 is higher than that at the discharge outlet end. The cross-section of the second sieve 301 of the second conveyor 3 is set to be arc-shaped, and the arc-shaped second sieve 301 extends along the tobacco leaf conveying direction. Guide plates 302 are provided on both sides of the second sieve 301. The height of one end of the guide plate 302 at the feed inlet of the second conveyor 3 is higher than that at the discharge outlet end of the second conveyor 3, so as to form an inclination of the guide plate 302 towards the discharge outlet of the second conveyor 3, which plays a guiding role for the tobacco leaves during conveying. Specifically, when the tobacco leaves are inclined, the higher end contacts the guide plate 302, and the tobacco leaves are adjusted to be longitudinal under the action of vibration and the guiding of the guide plate 302. It should be noted that the discharge outlet of the second conveyor 3 is also set to be arc-shaped, further ensuring that the tobacco leaves are in a longitudinal state when falling into the differential roller path 4, and the discharge outlet is set to be inclined, which is beneficial to the conveying of tobacco leaves.

[0033] Furthermore, the differential roller path 4 includes a workbench 401, a feeding belt conveyor 402 provided at the front end of the workbench 401, a discharging belt conveyor 403 provided at the rear end, and a roller path 404. The roller path 404 is located between the feeding belt conveyor 402 and the discharging belt conveyor 403. The workbench 401 is provided with a driving part for driving the roller path 404 to rotate. The driving part drives the roller path 404 to rotate and the rotation speed of the roller path 404 increases sequentially from the feeding belt conveyor 402 to the discharging belt conveyor 403, which also ensures the smooth conveying of tobacco leaves. Specifically, the roller path 404 is composed of 51 power rollers, with 3 rollers in each group, a total of 17 groups. The rotation speed of each group increases from the feeding belt conveyor 402 to the discharging belt conveyor 403, and the speed ratio is 1:1.1. Specifically, the driving motors of the driving part drive each group of power rollers to rotate at the same speed, and the rotation speed is increased by changing the belt pulleys between adjacent groups of the roller path 404, increasing sequentially from the feeding belt conveyor 402 to the conveying rollers and then to the discharging belt conveyor 403. The discharging speed is 1.1 to the 18th power of the feeding speed. By conveying the tobacco leaves in the way of increasing speed, it can avoid the tobacco leaves falling from the upper-level mechanism from getting stuck in the roller gaps and improve the tobacco leaf grading efficiency.

[0034] It should be noted that a floor bolt 405 for adjusting the height is also provided at the bottom of the workbench 401. The floor bolt 405 is provided at the lower end of the workbench 401, and the height of the workbench 401 can be adjusted by adjusting the floor bolt 405 to adapt to different production environments, enhance the applicability of this application, and at the same time, improve the efficiency of tobacco leaf grading operations.

[0035] Furthermore, the combined belt 5 includes a frame 501 and a plurality of parallel belts 502 arranged on the frame 501, and the belts 502 are respectively controlled by corresponding motors; the number of the belts 502 is three, and one end of the belts 502 is staggered in a step-like manner. Three belt conveyors are laid in parallel on the frame 501 to form a conveyor line for conveying tobacco leaves, and the three belt conveyors do not interfere with each other, and their speeds increase successively from one side to the other. Specifically, they are the first belt 5021, the second belt 5022 and the third belt 5023, and one end of the tobacco leaves conveyed from the upper level first falls on the first belt 5021, and the end that falls later falls on the third belt 5023 with a faster speed. The position of the tobacco leaves is adjusted by the differential speed between the second belt 5021 and the third belt 5023; the three belts 502 are controlled by three motors respectively, and the speed is adjustable from 0 to 2.5 m / s, which can be adjusted according to the actual state; the gaps between the three belts 502 are very small to prevent tobacco leaves from getting stuck in the belt gaps; guard plates are provided on both sides of the conveyor line to prevent tobacco leaves from falling; the ends of the belt conveyor power inputs are staggered in a stepped manner to avoid mutual interference.

[0036] Further, the sorting and unloading machine 6 includes a multi-stage conveying mechanism 601, a baffle mechanism 602 and a silo 603, and a gap is provided between adjacent conveying mechanisms 601, the baffle mechanism 602 is arranged above the gap, and the silo 603 is correspondingly arranged below the gap. After the detection and grading device 7 detects and grades the incoming tobacco leaves, the detection and grading device 7 sends the detected tobacco leaf information to the first controller, and a beam switch is arranged upstream of each baffle mechanism 602. When the beam switch detects tobacco leaves, the tobacco leaf signal is transmitted to the second controller of the corresponding baffle mechanism 602. The second controller controls the baffle mechanism 602 to block the tobacco leaves according to the detected tobacco leaf information, and prevents the tobacco leaves from continuing to slide forward. A unloading mechanism and a silo 603 are arranged at the lower end of each baffle mechanism 602. The unloading mechanism drives the tobacco leaves blocked by the baffle mechanism 602 to be discharged from the gap of the conveying mechanism 601 of the sorting and unloading machine 6 and fall into the silo 603 arranged at the lower end of each gap to collect the tobacco leaves. Through the cooperation of the multi-stage conveying mechanism 601 and the detection and grading device 7, tobacco leaves of different grades can be blocked and collected, thereby improving the accuracy of tobacco leaf grading and the operating speed.

[0037] It should be noted that the driving part is a cylinder; the unloading mechanism includes an electromagnetic switch valve and a nozzle, the nozzle is connected to the cylinder through the electromagnetic switch valve, and the electromagnetic switch valve is electrically connected to the second controller. When the matching switch detects tobacco leaves, the tobacco leaf signal is transmitted to the second controller of the corresponding baffle mechanism 602. The second controller controls the baffle mechanism 602 to block the tobacco leaves according to the detected tobacco leaf information, preventing the tobacco leaves from continuing to slide forward. The second controller controls the baffle mechanism 602 to open, pushes the tobacco leaves to the gap of the conveying mechanism 601, discharges them and falls into the silo 603.

[0038] In summary, the tobacco leaf sorting equipment provided in this embodiment mainly includes a hoist, a first conveyor, a second conveyor, a differential roller table, a combined belt, and a sorting and discharging machine. The hoist is used to convey tobacco leaves to the feeding end of the first conveyor. The discharging end of the first conveyor is connected to the second conveyor. The differential roller table is used to differentially separate the tobacco leaves conveyed by the second conveyor. The combined belt is used to adjust the positions of the tobacco leaves conveyed by the differential roller table. The sorting and discharging machine is used to collect the tobacco leaves conveyed by the combined belt. The tobacco leaf sorting equipment disclosed in the present invention adjusts the direction and spacing of the tobacco leaves through the first conveyor and the second conveyor, then adjusts the positions of the tobacco leaves through the differential roller table and the combined belt, and finally classifies and sorts and collects the tobacco leaves through the sorting and discharging machine, realizing the automatic classification and sorting of tobacco leaves, improving the efficiency of tobacco leaf production, sorting and preparation, avoiding problems such as manual sorting operation errors, and reducing the production cost of tobacco leaf production.

[0039] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tobacco leaf sorting device, characterized in that, It includes an elevator (1), a first conveyor (2), a second conveyor (3), a differential roller path (4), a combined belt (5) and a sorting and discharging machine (6). The elevator (1) is used to convey tobacco leaves to the feeding end of the first conveyor (2). The discharging end of the first conveyor (2) is connected to the second conveyor (3). The differential roller path (4) is used to differentially separate the tobacco leaves conveyed by the second conveyor (3). The combined belt (5) is used to adjust the position of the tobacco leaves conveyed by the differential roller path (4). The sorting and discharging machine (6) is used to collect the tobacco leaves conveyed by the combined belt (5); A first screen (201) is provided at the feeding end of the first conveyor (2); A plurality of transverse partitions (202) are further provided in the first conveyor (2); The bottom plate at the feeding port of the first conveyor (2) is provided with the first screen (201). A plurality of the transverse partitions (202) are arranged in the conveying direction of the first conveyor (2). The attitude of the tobacco leaves is adjusted by each of the transverse partitions (202) to ensure that the tobacco leaves move horizontally. The transverse partition (202) is an inclined plate inclined towards the conveying direction. As the first conveyor (2) conveys, the tobacco leaves move backward along the transverse partition (202). Under the action of the inclined plate and the self-weight of the tobacco leaves, the tobacco leaves are adjusted to a horizontal attitude. Moreover, the height of the transverse partition (202) decreases successively in the tobacco leaf conveying direction. While realizing the horizontal movement of the tobacco leaves, it avoids the accumulation of tobacco leaves. As the height of the transverse partition (202) decreases, the difficulty for the tobacco leaves to cross the transverse partition (202) decreases, which is convenient for accelerating the conveying of the tobacco leaves; A second screen (301) is provided in the second conveyor (3), and guide plates (302) are provided on both sides of the second screen (301). The height of one end of the guide plate (302) located at the feeding port of the second conveyor (3) is higher than that of the end located at the discharging port; The cross-section of the second screen (301) of the second conveyor (3) is set to be arc-shaped, and the arc-shaped second screen (301) extends along the tobacco leaf conveying direction. Guide plates (302) are provided on both sides of the second screen (301). The height of one end of the guide plate (302) located at the feeding port of the second conveyor (3) is higher than that of the end located at the discharging port of the second conveyor (3), so as to form the guide plate (302) inclined towards the discharging port of the second conveyor (3) to play a guiding role for the tobacco leaves during conveying. When the tobacco leaves are inclined, the high end contacts the guide plate (302). Under the action of vibration and the guiding of the guide plate (302), the tobacco leaves are adjusted to be longitudinal. The discharging port of the second conveyor (3) is also set to be arc-shaped to ensure that the tobacco leaves are in a longitudinal state when falling into the differential roller path (4), and the discharging port is set to be inclined, which is beneficial to the conveying of the tobacco leaves.

2. The tobacco leaf sorting device according to claim 1, wherein It further includes a detection and grading device (7) provided at the feeding end of the sorting and discharging machine (6). The detection and grading device (7) is used to detect and classify the tobacco leaves conveyed by the combined belt (5).

3. The tobacco leaf sorting device according to claim 1, characterized in that The differential roller conveyor (4) comprises a workbench (401), a loading belt conveyor (402) arranged at the front end of the workbench (401), a unloading belt conveyor (403) and a roller conveyor (404) at the rear end, wherein the roller conveyor (404) is located between the loading belt conveyor (402) and the unloading belt conveyor (403).

4. The tobacco leaf sorting device according to claim 3, characterized in that The bottom of the workbench (401) is also provided with anchor bolts (405) for adjusting the height.

5. The tobacco leaf sorting device according to claim 1, characterized in that, The combined belt (5) comprises a frame (501) and a plurality of parallel belts (502) arranged on the frame (501), and the belts (502) are respectively controlled by corresponding motors.

6. The tobacco leaf sorting device according to claim 5, characterized in that, The number of the belts (502) is three, and one end of the belts (502) are staggered in a step-like manner.

7. The tobacco leaf sorting device according to claim 1, characterized in that The sorting and unloading machine (6) comprises a multi-stage conveying mechanism (601), a baffle mechanism (602) and a silo (603), a gap is provided between adjacent conveying mechanisms (601), the baffle mechanism (602) is arranged above the gap, and the silo (603) is correspondingly arranged below the gap.

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