Tobacco leaf identifying and grading device

Abstract

The utility model provides a tobacco leaf identifying and grading device which comprises a supporting frame, a conveying mechanism, an identifying mechanism, a grading mechanism, an industrial personal computer and a controller, the supporting frame extends in the left-right direction, the conveying mechanism is used for conveying tobacco leaves from left to right, and a discharging hopper inclining downwards is arranged on the upper portion of the right end of the supporting frame; the recognition mechanism is used for collecting images of tobacco leaves; the grading mechanism comprises a supporting plate, a first driving assembly and a distributing rotary disc, the left end of the supporting plate is connected with the middle of the right end of the supporting frame, a rotating shaft is rotationally arranged on the top face of the right end of the supporting plate, and the upper end of the rotating shaft is perpendicularly connected with the middle position of the distributing rotary disc. The first driving assembly is used for driving the rotating shaft to rotate; a plurality of material receiving grooves are formed in the circumferential direction of the material distributing rotary disc; the recognition mechanism is electrically connected with the industrial personal computer, and the conveying mechanism, the industrial personal computer and the first driving assembly are electrically connected with the controller. According to the utility model, the efficiency of identifying and grading the tobacco leaves can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tobacco production technical field, concretely relates to a tobacco leaf identification and grading device. BACKGROUND

[0002] Tobacco is an important economic crop, and is widely planted and consumed worldwide. In the tobacco industry, the classification and grading of tobacco leaves is a crucial step that directly affects the taste and quality of cigarettes. In the prior art, the identification and grading of tobacco leaves mainly rely on manual experience judgment, which is low in efficiency, time-consuming and labor-intensive, and is easily affected by subjective factors. Therefore, how to design a tobacco leaf identification and grading device to improve the efficiency of tobacco leaf identification and grading and save manpower has become a technical problem that technicians in the field urgently need to solve. SUMMARY

[0003] The utility model aims at providing a tobacco leaf identification and grading device to solve the above technical problems in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A tobacco leaf identification and grading device, comprising a support frame, a conveying mechanism, an identification mechanism, a grading mechanism, an industrial computer and a controller, the support frame extends in the left-right direction, the conveying mechanism and the identification mechanism are both arranged on the top of the support frame, and the identification mechanism is located above the conveying mechanism; the conveying mechanism is used for conveying tobacco leaves from left to right, and the upper part of the right end of the support frame is provided with a downwardly inclined discharge hopper; the identification mechanism is used for collecting images of the tobacco leaves conveyed on the conveying mechanism; the grading mechanism comprises a horizontally arranged support plate, a first driving assembly and a material distribution turntable, the left end of the support plate is connected to the middle part of the right end of the support frame, a rotating shaft is rotatably arranged on the top surface of the right end of the support plate, the rotating shaft is perpendicular to the support plate, and the upper end of the rotating shaft is connected to the middle part of the material distribution turntable; the first driving assembly is arranged on the support plate, and the first driving assembly is used for driving the rotating shaft to rotate; the material distribution turntable is located below the discharge hopper, and the material distribution turntable has a plurality of material receiving grooves in the circumferential direction; the identification mechanism is electrically connected to the industrial computer, and the conveying mechanism, the industrial computer and the first driving assembly are electrically connected to the controller respectively.

[0006] Preferably, the first driving assembly comprises a driving motor, a driving wheel, a driven wheel and a transmission belt, the driven wheel is fixedly sleeved on the rotating shaft, the driving motor is arranged on the bottom surface of the left end of the supporting plate, the output shaft of the driving motor vertically penetrates the supporting plate upwards, the driving wheel is fixedly sleeved on the upper end of the output shaft, and the driving wheel is connected with the driven wheel through the transmission belt.

[0007] Preferably, the conveying mechanism comprises a second driving assembly, a conveying belt, a driving roller and a driven roller, the front and rear ends of the driving roller are rotationally connected with the left ends of the front and rear side plates of the supporting frame respectively, the front and rear ends of the driven roller are rotationally connected with the right ends of the front and rear side plates of the supporting frame respectively, the driving roller is parallel to the driven roller, the driving roller and the driven roller are connected through the conveying belt, and the second driving assembly is arranged on the outer wall surface of the front side plate of the supporting frame and used for driving the driving roller to rotate.

[0008] Preferably, the identification mechanism comprises a camera and a mounting bracket, the mounting bracket is arranged on the right side of the top of the supporting frame, and the camera is arranged on the mounting bracket and located above the conveying belt.

[0009] Preferably, the mounting bracket comprises two supporting frames and a plurality of sliding rails, the two supporting frames are arranged on the top surfaces of the front and rear side plates of the supporting frame respectively, and the sliding rails are arranged between the two supporting frames respectively; the sliding sleeves that are in sliding fit with the sliding rails are arranged on the sliding rails respectively, and the cameras are arranged at the bottoms of the sliding sleeves.

[0010] Preferably, the two supporting frames are in inverted U-shaped structures, and the left and right ends of the two supporting frames are connected through reinforcing rods respectively.

[0011] Preferably, the sliding sleeve is provided with a locking piece for locking the sliding sleeve on the sliding rail.

[0012] Preferably, the front and rear side plates of the supporting frame are provided with guide plates in a relative mode, and the distance between the two guide plates gradually decreases from left to right.

[0013] Preferably, the utility model further comprises a receiving disc, the receiving disc is arranged below the distributing turntable, and a plurality of through holes are arranged on the groove bottoms of the receiving grooves.

[0014] Preferably, the discharging hopper is in isosceles trapezoidal structure, one end with a larger length of the discharging hopper is connected with the supporting frame, and a material blocking plate is arranged on the top of the other end with a smaller length of the discharging hopper.

[0015] The utility model discloses the beneficial effect lies in:

[0016] The tobacco leaf recognition and grading device of the utility model, when in use, the tobacco leaf is transported through the conveying mechanism, the image of the tobacco leaf is acquired through the recognition mechanism, and then is transmitted to the industrial computer, the industrial computer grades it and transmits the grading result to the controller, the controller controls the rotating angle of the rotating shaft through the first driving assembly, different material receiving grooves are arranged directly below the lower end of the discharge hopper, different grades of tobacco leaves are made to fall into different material receiving grooves, and thus the grading of the tobacco leaves is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced, and the specific embodiments of the utility model will be further described in detail in combination with the drawings, in which

[0018] Fig. 1 A schematic view of the tobacco leaf recognition and grading device provided by the utility model embodiment;

[0019] Fig. 2 Another schematic view of the tobacco leaf recognition and grading device provided by the utility model embodiment;

[0020] Fig. 3 A front view of the tobacco leaf recognition and grading device provided by the utility model embodiment;

[0021] Fig. 4 A top view of the tobacco leaf recognition and grading device provided by the utility model embodiment.

[0022] Markings in the drawings:

[0023] 1, support frame, 2, second driving assembly, 3, mounting bracket, 4, camera,

[0024] 5, support plate, 6, rotating disc body, 7, material receiving box, 8, rotating shaft, 9, conveying belt,

[0025] 10, driving roller, 11, driven roller, 12, guide plate, 13, discharge hopper,

[0026] 14, material blocking plate, 15, support frame, 16, sliding rail, 17, sliding sleeve, 18, driving motor,

[0027] 19, driving wheel, 20, driven wheel, 21, transmission belt, 22, partition plate, 23, through hole,

[0028] 24, material receiving disc, 25, adjustable supporting leg; 26, material receiving groove; 27, reinforcing rod;

[0029] 28. Connecting rod. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] like Figs. 1 to 4 As shown, the embodiment of the utility model provides a tobacco leaf identification and grading device, which includes a support frame 1, a conveying mechanism, an identification mechanism, a grading mechanism, an industrial computer, and a controller. The support frame 1 extends in the left-right direction, and the conveying mechanism and the identification mechanism are both arranged on the top of the support frame 1, and the identification mechanism is located above the conveying mechanism; the conveying mechanism is used to convey the tobacco leaves from left to right, and a downwardly inclined discharge hopper 13 is provided on the upper part of the right end of the support frame 1; the identification mechanism is used to collect images of the tobacco leaves conveyed on the conveying mechanism; the grading mechanism includes a horizontally arranged support plate 5, a first drive group Parts and a material distribution turntable, the left end of the support plate 5 is connected to the middle of the right end of the support frame, and a rotating shaft 8 is rotatably arranged on the top surface of the right end of the support plate, and the rotating shaft 8 is perpendicular to the support plate 5, and the upper end of the rotating shaft is vertically connected to the middle position of the material distribution turntable; the first driving assembly is arranged on the support plate, and the first driving assembly is used to drive the rotating shaft 8 to rotate; the material distribution turntable is located below the discharge hopper, and the material distribution turntable has a plurality of material receiving grooves 26 on its circumference; the identification mechanism is electrically connected to the industrial computer, and the conveying mechanism, the industrial computer, and the first driving assembly are electrically connected to the controller respectively.

[0035] The tobacco leaf identification and grading device provided by the embodiment of the utility model, when in use, the tobacco leaves are conveyed by the conveying mechanism, the image of the tobacco leaves is acquired by the identification mechanism, and then the image is transmitted to the industrial computer, the industrial computer grades the image and transmits the grading result to the controller, the controller controls the rotating angle of the rotating shaft through the first driving assembly, the different material receiving grooves are arranged directly below the lower end of the discharge hopper, and the tobacco leaves of different grades are respectively dropped into the different material receiving grooves, so that the grading of the tobacco leaves is realized. It can be seen that the utility model can better realize the identification and grading of the tobacco leaves, saves manpower, and effectively improves the efficiency of the tobacco leaf identification and grading work.

[0036] Further, the first driving assembly comprises a driving motor 18, a driving wheel 19, a driven wheel 20 and a transmission belt 21, the driven wheel 20 is fixedly sleeved on the rotating shaft 8, the driving motor is arranged on the bottom surface of the left end of the supporting plate, the output shaft of the driving motor vertically penetrates the supporting plate upwards, the driving wheel 19 is fixedly sleeved on the upper end of the output shaft, and the driving wheel and the driven wheel are connected through the transmission belt 21. By driving the driving wheel 19 to rotate through the driving motor 18, the driven wheel 20 can be driven to rotate through the transmission belt 21, so that the rotating shaft 8 and the material distribution turntable can be driven to rotate with the driven wheel, and then the different material receiving grooves 26 can be conveniently arranged directly below the lower end of the discharge hopper.

[0037] Preferably, the rotating shaft 8 and the supporting plate 5 are rotationally connected through a bearing. It can be understood that the driving motor is electrically connected with the controller, and the controller can control the rotating direction, rotating angle and rotating speed of the driving motor; the driven wheel 20 is fixedly sleeved on the rotating shaft 8, that is, the driven wheel is sleeved on the rotating shaft in an interference fit manner.

[0038] Further, the conveying mechanism comprises a second driving assembly 2, a conveying belt 9, a driving roller 10 and a driven roller 11, the front and rear ends of the driving roller 10 are rotationally connected with the left ends of the front and rear side plates of the supporting frame 1 respectively, the front and rear ends of the driven roller 11 are rotationally connected with the right ends of the front and rear side plates of the supporting frame respectively, the driving roller is parallel to the driven roller, the driving roller and the driven roller are connected through the conveying belt, and the second driving assembly is arranged on the outer wall surface of the front side plate of the supporting frame and is used for driving the driving roller 10 to rotate. By driving the driving roller 10 to rotate through the second driving assembly 2, the driven roller 11 can be driven to rotate through the conveying belt 9, so that the conveying belt can run and the tobacco leaves can be conveyed.

[0039] Specifically, the second driving assembly 2 is a conveying motor. At this time, the second driving assembly can drive the driving roller to rotate through a belt transmission, a chain transmission or a gear transmission. The conveying motor is electrically connected with the controller.

[0040] Further, the identification mechanism comprises a camera 4 and a mounting bracket 3, the mounting bracket 3 is arranged on the right side of the top of the support frame 1, and the camera is arranged on the mounting bracket and above the conveying belt. With this scheme, the structure of the identification mechanism is relatively simple.

[0041] Specifically, the mounting bracket 3 comprises two support frames 15 and a plurality of slide rails 16, the two support frames 15 are respectively arranged on the top surfaces of the front and rear side plates of the support frame 1, and the slide rails 16 are arranged between the two support frames. Each slide rail is provided with a sliding sleeve 17 matched therewith, and the bottom of each sliding sleeve 17 is provided with the camera 4. With this scheme, multiple cameras 4 can be used to obtain images of tobacco leaves, and the positions of the cameras can be easily adjusted by sliding the sliding sleeves 17 on the slide rails 16, so that the entire tobacco leaf can be better covered, and the identification and grading results are more accurate and reliable. It can be understood that the slide rails are arranged between the two support frames from left to right, and the lenses of the cameras are arranged downward. Considering that a single camera cannot cover the entire area of the tobacco leaf due to the limitation of the lens magnification effect, multiple cameras are used for shooting in the present application. The image set obtained by shooting is transmitted to the industrial computer, and the industrial computer has software for analyzing images. The image processing technology can be used to identify, splice and analyze the images. The image processing technology possessed by the industrial computer is prior art, which will not be described here.

[0042] In an embodiment, the sliding sleeves 17 on adjacent two slide rails are staggered, that is, the adjacent two cameras are staggered to cover the entire tobacco leaf. Specifically, in the conveying direction of the tobacco leaf, the cameras can be distributed in a trapezoidal manner, that is, staggered by a certain distance in turn. The number of slide rails, sliding sleeves and cameras can all be three.

[0043] Preferably, the two support frames 15 are both inverted U-shaped structures, and the left and right ends of the two support frames 15 are connected by a reinforcing rod 27, so that the connection between the two support frames is more firm and reliable.

[0044] Specifically, the sliding sleeve 17 is provided with a locking member for locking it on the slide rail, so that the sliding sleeve and the camera mounted on the sliding sleeve can be conveniently fixed on the designated position of the slide rail by the locking member, avoiding sliding during use. Preferably, the locking member is a locking bolt, and the sliding sleeve is provided with a threaded hole. When locking is required, the threaded segment of the locking bolt is matched with the threaded hole, and then the end of the threaded segment of the locking bolt is tightly pressed on the slide rail to achieve the locking of the sliding sleeve. The sliding sleeve has a character-shaped structure, and the sliding sleeve is slidably connected with the slide rail through the rectangular hole at the middle position of the sliding sleeve. The cross section of the slide rail is rectangular.

[0045] Preferably, the front and rear side plates of the support frame 1 are oppositely provided with two guide plates 12, and the distance between the two guide plates 12 gradually decreases from left to right, so that the two guide plates can guide the tobacco leaves to be transported along a predetermined path, improving the stability during transportation.

[0046] Specifically, the two guide plates 12 can be connected with the mounting blocks provided on the top surfaces of the front and rear side plates of the support frame 1 through connecting rods 28, respectively.

[0047] Preferably, the distributing turntable comprises a turntable body 6 and a plurality of topless receiving boxes 7, and each receiving box 7 is uniformly arranged on the circumference of the turntable body 6. Each receiving box 7 is detachably connected with the turntable body 6, so that each receiving box 7 can be conveniently detached for taking out the tobacco leaves. At this time, the inner cavity of the receiving box is the receiving groove 26, and the bottom of the receiving box is the groove bottom of the receiving groove. Specifically, a partition plate 22 is arranged between adjacent two receiving boxes 7, so that different grades of tobacco leaves can be better prevented from being mixed together. The partition plate is detachably connected with the turntable body.

[0048] Further, the tobacco leaf identification and grading device further comprises a receiving disc 24 arranged below the distributing turntable. A plurality of through holes 23 are arranged on the groove bottom of each receiving groove, so that the tobacco leaf fragments can fall into the receiving disc through the through holes, conveniently achieving the collection of the tobacco leaf fragments.

[0049] Specifically, the discharge hopper 13 has an isosceles trapezoidal structure, and the end with a larger length of the discharge hopper is connected with the support frame. A baffle plate 14 is arranged on the top of the end with a smaller length of the discharge hopper, so that the tobacco leaves sliding from the right end of the conveying belt 9 can be more accurately slid into the receiving groove 26 through the discharge hopper. At the same time, the baffle plate 14 can prevent the tobacco leaves from splashing, ensuring that the tobacco leaves fall smoothly into the receiving groove, effectively reducing the scattering.

[0050] Preferably, a plurality of adjustable supporting feet 25 are installed on the bottom of the support frame 1 by bolts, so as to adapt to different ground conditions and ensure the stability of the device. The controller is a PLC controller.

[0051] The utility model discloses in using, first through conveying mechanism with the tobacco leaf of detection by left and right delivery, while each camera gathers the image of tobacco leaf respectively and sends to industrial computer, and then the image of collection is analyzed to industrial computer, extracts the feature of tobacco leaf, and according to these features, classification and grading are carried out and then feedback is given to controller, finally according to the grading result, the rotation angle of controller is controlled through the drive motor control rotating shaft, and different grades tobacco leaf falls into the corresponding receiving groove through the discharge hopper, realizes the physical sorting of tobacco leaf.

[0052] The above-mentioned image processing technology in the industrial computer is a relatively mature technology on the market, and those skilled in the art can obtain it through common knowledge, conventional means or simple deduction in the art, and the control program, software and its image analysis method are not within the protection scope of the application, and will not be described hereinafter; in addition, the industrial computer is electrically connected with each camera, and the specific model and specification of the industrial computer, the conveying motor and the drive motor need to be selected and determined according to the actual situation of the device, and the specific selection calculation method can be obtained by using the existing technology in the art, so it will not be described in detail.

[0053] The utility model discloses a kind of tobacco leaf identification and grading device based on image processing technology in artificial intelligence, can realize the automatic conveying, identification and grading of tobacco leaf, high degree of automation, reduce labor cost, significantly improve work efficiency;Through multiple staggered cameras, ensure that all parts of tobacco leaf can be photographed, guarantee the accuracy of identification result;Multiple receiving grooves are set, the number and position can be adjusted according to actual demand, to meet the demand of different grade division;It can efficiently and accurately complete the identification and grading operation of tobacco leaf.

[0054] Although some specific embodiments of the utility model have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A tobacco leaf identification and grading device, characterized in that: It includes a support frame, a conveying mechanism, an identification mechanism, a grading mechanism, an industrial computer, and a controller. The support frame extends in the left and right directions. The conveying mechanism and the identification mechanism are both arranged on the top of the support frame, and the identification mechanism is located above the conveying mechanism. The conveying mechanism is used to convey the tobacco leaves from left to right, and a downward-inclined discharge hopper is provided on the upper part of the right end of the support frame. The identification mechanism is used to collect images of the tobacco leaves conveyed on the conveying mechanism. The grading mechanism includes a horizontally arranged support plate, a first drive assembly, and a material distribution turntable. The left side of the support plate is provided with a first drive assembly and a material distribution turntable. The end is connected to the middle of the right end of the support frame, and a rotating shaft is rotatably arranged on the top surface of the right end of the support plate, the rotating shaft is perpendicular to the support plate, and the upper end of the rotating shaft is vertically connected to the middle position of the material distribution turntable; the first driving assembly is arranged on the support plate, and the first driving assembly is used to drive the rotating shaft to rotate; the material distribution turntable is located below the discharge hopper, and the material distribution turntable has a plurality of material receiving grooves in the circumference; the identification mechanism is electrically connected to the industrial computer, and the conveying mechanism, the industrial computer, and the first driving assembly are electrically connected to the controller respectively.

2. The tobacco leaf identification and grading device according to claim 1, characterized in that: The first driving assembly includes a driving motor, a driving wheel, a driven wheel and a transmission belt. The driven wheel is fixedly sleeved on the rotating shaft. The driving motor is arranged on the bottom surface of the left end of the support plate. The output shaft of the driving motor vertically passes through the support plate. The driving wheel is fixedly sleeved on the upper end of the output shaft. The driving wheel and the driven wheel are connected by the transmission belt.

3. The tobacco leaf identification and grading device according to claim 1, characterized in that: The conveying mechanism includes a second driving assembly, a conveyor belt, an active roller and a driven roller. The front and rear ends of the active roller are respectively rotatably connected to the left ends of the front and rear side plates of the support frame, and the front and rear ends of the driven roller are respectively rotatably connected to the right ends of the front and rear side plates of the support frame; the active roller is parallel to the driven roller, and the active roller and the driven roller are connected by the conveyor belt; the second driving assembly is arranged on the outer wall surface of the front side plate of the support frame, and the second driving assembly is used to drive the active roller to rotate.

4. The tobacco leaf identification and grading device according to claim 3, characterized in that: The identification mechanism includes a camera and a mounting bracket, wherein the mounting bracket is arranged on the right side of the top of the support frame, and the camera is arranged on the mounting bracket and is located above the conveyor belt.

5. The tobacco leaf identification and grading device according to claim 4, characterized in that: The mounting bracket includes two support frames and multiple slide rails. The two support frames are respectively arranged on the top surfaces of the front and rear side plates of the support frame, and each slide rail is respectively arranged between the two support frames; each slide rail is provided with a sliding sleeve that slides with it, and the camera is provided at the bottom of each sliding sleeve.

6. The tobacco leaf identification and grading device according to claim 5, characterized in that: The two support frames are both inverted U-shaped structures, and the left and right ends of the two support frames are connected by reinforcing rods.

7. The tobacco leaf identification and grading device according to claim 5, characterized in that: The sliding sleeve is provided with a locking member for locking the sliding sleeve on the sliding rail.

8. The tobacco leaf identification and grading device according to claim 1, characterized in that: Guide plates are arranged opposite to each other on the front and rear side plates of the support frame, and the distance between the two guide plates gradually decreases from left to right.

9. The tobacco leaf identification and grading device according to claim 1, characterized in that: It also includes a material receiving tray, which is arranged below the material distribution turntable, and a plurality of through holes are arranged on the bottom of each material receiving trough.

10. The tobacco leaf identification and grading device according to any one of claims 1 to 9, characterized in that: The discharging hopper is an isosceles trapezoidal structure, the longer end of the discharging hopper is connected to the supporting frame, and a baffle is provided on the top of the shorter end of the discharging hopper.

Images