Tobacco leaf rating device based on eye movement tracking

Abstract

The utility model relates to the technical field of tobacco leaf grade evaluation equipment, in particular to a tobacco leaf grade evaluation device based on eye movement tracking, which comprises a grade evaluation table and a dragon card plate for fixing tobacco leaves, a turnover plate is arranged on one side surface of the grade evaluation table, supporting legs capable of being stored are arranged on the turnover plate, a clamping ring for placing the dragon card plate is arranged on the turnover plate, and the dragon card plate is arranged on the clamping ring. A clamping column used for fixing the dragon card plate is arranged in the clamping ring, a plurality of fixing seats used for placing adhesive tape are slidably connected to one edge of the turnover plate, a cutting mechanism used for cutting off the adhesive tape is movably connected to one side edge of each fixing seat, and each cutting mechanism comprises a cutting component and a returning component. After the adhesive tape is cut off by the cutting component, the returning component retracts into the cutting mechanism under the action of external force, one end of the adhesive tape is adhered to the position close to the returning component, and the fixing efficiency of the tobacco leaves on the dragon card board in the tobacco leaf rating testing process can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco leaf grading equipment, and particularly relates to a tobacco leaf grading device based on eye movement tracking. BACKGROUND

[0002] Tobacco leaf grading can ensure the consistency of tobacco leaf quality. Through grading, tobacco leaves of different qualities can be distinguished, which is crucial for the cigarette industry. Tobacco leaf grading relies on the sensory experience of grading personnel, and grades are determined by observing the appearance characteristics of tobacco leaves such as color, luster, leaf structure, and oil content. Through tobacco leaf grading tests, workers can detect their control over tobacco grading. When fixing tobacco samples to a dragon card board, a large transparent tape is needed to fix the position of the tobacco. When fixing tobacco samples to a dragon card board, a small transparent tape is needed to fix the leaf stalk end and the leaf tip. When fixing tobacco samples to a dragon card board, the tobacco needs to be placed behind and pressed by the palm to fix the position of the tobacco. Then, the tobacco is fixed to the dragon card board using a tape. The worker needs to fix the position of the tobacco with one hand and paste the tape with the other hand, which is inconvenient. Therefore, two people are often needed to complete the fixing of the tobacco.

[0003] Tobacco leaf grading technology is a technology that uses visual, tactile, and other sensory experiences and sensory analysis techniques. Differences in experience, subjective judgment, and visual fatigue of grading personnel can easily lead to inconsistency and errors in grading results. With the continuous development of science and technology, eye movement tracking technology has gradually emerged, which can accurately record the fixation point, fixation time, and saccade trajectory of the human eye. In the tobacco leaf grading test, the eye movement tracking technology can quantify the complex psychological cognitive process into various discrete eye movement data, which can improve the problem that the cognitive psychological process cannot be accurately expressed in language, increase the objectivity of the research results, improve the validity and reliability of the analysis results, promote the development of the explicit knowledge of tobacco leaf grading, and further promote the cultivation of high-skilled personnel for tobacco leaf grading.

[0004] For the related technology in the above, the inventors find that the following defects exist: the tobacco leaf grading test process has the disadvantage of low efficiency when fixing the tobacco leaf. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the fixing efficiency of the tobacco leaf on the dragon card board in the tobacco leaf grading test process, the present application provides a tobacco leaf grading device based on eye movement tracking.

[0006] The tobacco leaf grading device based on eye tracking provided by the application adopts the following technical scheme: a grading table, a dragon card plate for fixing tobacco leaves, a folding plate arranged on one side of the grading table, a support leg arranged on the folding plate and capable of being stored, a clamping ring arranged on the folding plate and used for placing the dragon card plate, a clamping column arranged in the clamping ring and used for fixing the dragon card plate, a fixing seat arranged on one side of the folding plate and used for placing adhesive tape, a plurality of fixing seats, a cutting mechanism movably connected to one side of each fixing seat and used for cutting the adhesive tape, the cutting mechanism comprising a cutting component and a retreat component, the retreat component being retracted into the cutting mechanism under external force after the adhesive tape is cut by the cutting component, and one end of the adhesive tape being pasted to a position close to the retreat component.

[0007] Preferably, one end of the folding plate is provided with a sliding groove, a sliding column is arranged in the sliding groove, elastic protrusions are arranged on opposite sides of the sliding column, a fixing groove is arranged in the folding plate and communicates with the sliding groove and cooperates with the elastic protrusions, and one side of the fixing seat close to the folding plate is provided with a clamping groove for clamping the sliding column.

[0008] Preferably, the cutting component comprises a support seat, the support seat is in an "L" shape structure, a blade is arranged at one end of the support seat, and a suction cup for fixing to the dragon card plate is arranged at an end of the support seat away from the blade.

[0009] Preferably, the retreat component comprises a groove in the support seat, a support leg is slidably connected in the groove, a wheel for moving along the surface of the dragon card plate is arranged at an end of the support leg away from the support seat, the support seat and the support leg are connected through an extension rod, a spring is arranged outside the extension rod, one end of the spring is connected to the support seat, and the other end of the spring is connected to the support leg.

[0010] Preferably, clamping columns are arranged on opposite inner walls of the clamping ring, the clamping columns are in an "L" shape structure, and the clamping columns are connected to the inner walls of the clamping ring through compression springs.

[0011] Preferably, a spring-loaded rope mechanism is arranged on one side of the fixing seat, a rope of the spring-loaded rope mechanism is connected to the cutting mechanism, and a magnet is arranged on a side of the fixing seat and the cutting mechanism close to each other.

[0012] In summary, the application has the following beneficial technical effects:

[0013] 1. The folding plate is provided with a clamping ring for fixing the card plate, a fixing seat for placing the adhesive tape is arranged outside the clamping ring on the card plate, a movable cutting mechanism is arranged in the clamping ring, the cutting mechanism comprises a return component, after a staff member presses a tobacco sample with one hand, the other hand pulls the adhesive tape to a side away from the fixing seat of the tobacco sample, and then the adhesive tape is cut off under the action of the cutting mechanism, and the cutting end is pasted on the card plate after the return component is moved by being pushed, so that a single person can fix the tobacco sample, and the waste of operation time in the sample preparation process is reduced.

[0014] 2. The folding plate can be stored, and the supporting legs are telescopic, so that space can be effectively saved when not in use, and storage and transportation of the device are facilitated, the return component comprises a supporting seat and a supporting leg, and the supporting leg and the supporting seat are slidably connected through an extension rod, so that the movement of the supporting leg is facilitated.

[0015] 3. The cutting mechanism is separately arranged from the fixing seat, the position of the cutting mechanism can be adjusted according to the tobacco, and the cutting mechanism is fixed by means of a suction cup, the fixing seat and the cutting mechanism are connected stably and are convenient to operate through cooperation of a clockwork pull rope mechanism and a magnet.

[0016] 4. The observation details of the tobacco by a rating person are recorded by means of an eye tracking technology, so that the influence of subjective factors on the rating result is reduced, and the rating is more objective and accurate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view of a tobacco rating device based on eye tracking according to the present application;

[0018] Figure 2 is a sectional view of a folding plate of a tobacco rating device based on eye tracking according to the present application;

[0019] Figure 3 is an enlarged view of a folding plate sectional view A of a tobacco rating device based on eye tracking according to the present application.

[0020] Fig. 1 is a rating table, Fig. 2 is a folding plate, Fig. 3 is a clamping ring, Fig. 4 is a clamping column, Fig. 5 is a fixing seat, Fig. 6 is a sliding groove, Fig. 7 is a sliding column, Fig. 8 is an elastic protrusion, Fig. 9 is a fixing groove, Fig. 10 is a clamping groove, Fig. 11 is a supporting seat, Fig. 12 is a blade, Fig. 13 is a suction cup, Fig. 14 is a groove, Fig. 15 is a supporting leg, Fig. 16 is a wheel, Fig. 17 is an extension rod, Fig. 18 is a spring, Fig. 19 is a clockwork pull rope mechanism, Fig. 20 is a rope, and Fig. 21 is a magnet. DETAILED DESCRIPTION

[0021] The present application will be described in detail below with reference to the accompanying drawings. Figures 1-3 The present application will be described in detail below with reference to the accompanying drawings.

[0022] The present application discloses a tobacco rating device based on eye tracking, as shown in Figure 1 and 2The tobacco leaf rating device based on eye tracking includes a rating table 1 for fixing the tobacco leaf, a folding plate 2 hinged on one side of the rating table 1, and a support leg 15 fixed on the folding plate 2 by screws and capable of being stored and having adjustable length. The support leg 15 has four support portions for supporting the folding plate 2 when the folding plate 2 is placed horizontally with the rating table 1. A clamping ring 3 for placing the tobacco leaf is glued on the folding plate 2. The clamping ring 3 is located at the middle position of the folding plate 2 and has a rectangular ring structure suitable for placing the tobacco leaf. A clamping column 4 for fixing the tobacco leaf is arranged in the clamping ring 3. A sliding groove 6 is arranged at one end of the folding plate 2. A plurality of sliding columns 7 are arranged in the sliding groove 6. The sliding columns 7 have a “convex” cross-section structure. One end of each sliding column 7 extends to the outside of the sliding groove 6 and is clamped with a fixing seat 5. The fixing seat 5 is a prior art. The fixing seat 5 is used for placing adhesive tape. One side of the fixing seat 5 close to the folding plate 2 is provided with a clamping groove 10 used in cooperation with the sliding column 7. Elastic protrusions 8 are glued on two opposite sides of the sliding column 7. A fixing groove 9 in communication with the sliding groove 6 and used in cooperation with the elastic protrusions 8 is arranged in the folding plate 2. The fixing groove 9 has a plurality of fixing grooves and is evenly arranged along the length direction of the sliding groove 6. A cutting mechanism for cutting the adhesive tape is movably connected to one side of each fixing seat 5. A spring pull rope mechanism 19 is screwed and fixed on one side of the fixing seat 5. The spring pull rope mechanism 19 is a prior art. A rope 20 of the spring pull rope mechanism 19 is connected with the cutting mechanism. A magnet 21 is glued on one side of the fixing seat 5 close to the cutting mechanism. The cutting mechanism includes a cutting part and a return part. When the adhesive tape is cut by the cutting part, the return part is retracted into the cutting mechanism under external force. One end of the adhesive tape is pasted to a position close to the return part. Since the cutting mechanism is higher than the tobacco leaf, the length of the adhesive tape cut after the adhesive tape is fixed is greater than the straight line distance between the adhesive tape and the cutting mechanism. Therefore, the support leg 15 needs to be moved to ensure that the adhesive tape is not wrinkled when the adhesive tape is pasted to the tobacco leaf.

[0023] In an embodiment, according to the attached Figure 2 and 3 The cutting part includes a support seat 11 having an “L” shape structure. One end of the support seat 11 is clamped with a blade 12 through a mounting seat. An suction disc 13 for fixing to the tobacco leaf is glued on one end of the support seat 11 away from the blade 12. The suction disc 13 is a prior art. The return part includes a groove 14 in the support seat 11. A support leg 15 is slidably connected in the groove 14. A wheel 16 for moving along the surface of the tobacco leaf is rotatably arranged on one end of the support leg 15 away from the support seat 11. A friction pad is glued on the outer surface of the wheel 16. The support seat 11 and the support leg 15 are connected through an extension rod 17. Screw holes for screwing through are arranged at both ends of the extension rod 17. A spring 18 is arranged outside the extension rod 17. One end of the spring 18 is connected to the support seat 11 and the other end is connected to the support leg 15.

[0024] In an embodiment, according to the attached Figure 2 and3 The two opposite inner walls of the collar 3 are slidingly connected with clamping columns 4, the clamping columns 4 are in "L" shape structure, the clamping columns 4 are connected with the inner wall of the collar 3 through compression springs, and the inner wall of the collar 3 is provided with a placing hole for placing one end of the compression spring.

[0025] The implementation principle of the tobacco leaf rating device based on eye tracking in the embodiment of the application is as follows: the rotating folding plate is flush with the rating table, the telescopic supporting legs are opened to support the folding plate, the dragon card plate is fixed in the collar through the clamping column, the tobacco leaf is placed on the dragon card plate and the position is determined; the staff member moves the cutting mechanism to the dragon card plate and fixes the supporting seat by relying on the suction cup, presses the tobacco leaf sample with one hand, pulls the adhesive tape to the side away from the fixed seat with the other hand, and pastes it on the dragon card plate, then cuts off the adhesive tape under the action of the cutting mechanism, and pastes the cutting end on the dragon card plate after moving the supporting leg.

[0026] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. An eye-tracking-based tobacco grading device, comprising a grading table (1) and a card plate for fixing tobacco leaves, characterized in that: A folding plate (2) is provided on one side of the rating table (1). The folding plate (2) is provided with a retractable support leg (15). The folding plate (2) is provided with a retaining ring (3) for placing the card plate. The retaining ring (3) is provided with a retaining post (4) for fixing the card plate. A fixing seat (5) for placing tape is slidably connected to one side of the folding plate (2). There are multiple fixing seats (5). Each fixing seat (5) is movably connected to a cutting mechanism for cutting tape on one side. The cutting mechanism includes a cutting component and a retraction component. After the tape is cut by the cutting component, the retraction component retracts into the cutting mechanism under external force, and one end of the tape will be pasted to the position close to the retraction component.

2. The tobacco leaf grading device based on eye tracking according to claim 1, characterized in that: The folding plate (2) has a sliding groove (6) at one end, a sliding column (7) is provided in the sliding groove (6), and elastic protrusions (8) are provided on two opposite sides of the sliding column (7). The folding plate (2) has a fixing groove (9) that communicates with the sliding groove (6) and cooperates with the elastic protrusions (8). The fixing seat (5) has a locking groove (10) that engages with the sliding column (7) on the side near the folding plate (2).

3. The tobacco leaf grading device based on eye tracking according to claim 1, characterized in that: The cutting component includes a support base (11) which has an "L" shaped structure. One end of the support base (11) is provided with a blade (12), and the end of the support base (11) away from the blade (12) is provided with a suction cup (13) for fixing to the duct plate.

4. The tobacco leaf grading device based on eye tracking according to claim 3, characterized in that: The retraction component includes a groove (14) located in the support base (11), and a support leg (15) is slidably connected in the groove (14). The end of the support leg (15) away from the support base (11) is provided with a wheel (16) for moving along the surface of the duct plate. The support base (11) and the support leg (15) are connected by a telescopic rod (17). A spring (18) is sleeved on the outside of the telescopic rod (17). One end of the spring (18) is connected to the support base (11) and the other end is connected to the support leg (15).

5. The tobacco leaf grading device based on eye tracking according to claim 1, characterized in that: The retaining ring (3) has retaining posts (4) on both opposite inner walls. The retaining posts (4) are in an "L" shape and are connected to the inner wall of the retaining ring (3) by compression springs.

6. The tobacco leaf grading device based on eye tracking according to claim 1, characterized in that: A spring-loaded rope mechanism (19) is provided on one side of the fixed seat (5). The rope (20) of the spring-loaded rope mechanism (19) is connected to the cutting mechanism. A magnet (21) is provided on the side of the fixed seat (5) that is close to the cutting mechanism.

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