Device for rapidly detecting adhesion of continuous reconstituted tobacco sheets

Abstract

The utility model relates to the technical field of tobacco detection, and provides a device for rapidly detecting adhesion of reconstituted tobacco connecting pieces, which comprises a base, and a shaking mechanism, a conveying mechanism, a winnowing mechanism and a collecting mechanism which are arranged on the base, a conveying mechanism is arranged above the base; a shaking mechanism is arranged above the conveying mechanism; the shaking mechanism comprises an upper-layer vibrating screen and a lower-layer vibrating screen; the lower-layer vibrating screen is arranged above the conveying mechanism, and the upper-layer vibrating screen is arranged above the lower-layer vibrating screen; a plurality of collecting drawers are arranged in the base; the multiple collecting drawers are located below the conveying mechanism. The winnowing mechanism is arranged below the discharging end of the conveying mechanism. The winnowing mechanism comprises a centrifugal fan; and an air outlet of the centrifugal fan faces the collecting drawer. The device can efficiently pick out reconstituted tobacco continuous sheets and adhesion, the detection efficiency is improved, the labor cost is reduced, and the accuracy of detecting the adhesion rate of the continuous sheets is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tobacco detection technology, and in particular to a device for rapidly detecting the adhesion of reconstituted tobacco leaves. Background Technology

[0002] Reconstituted tobacco, also known as tobacco sheets, refers to a recycled product made from waste materials such as tobacco stems, dust, and broken tobacco leaves discarded during cigarette processing, produced in sheet or shred form. It plays a crucial role in cigarette production, not only reducing costs but also improving the intrinsic quality of cigarettes. The sheet adhesion rate is a quality control indicator for reconstituted tobacco products and is of great significance in judging their quality.

[0003] The adhesion rate is an appearance indicator. The quality control requirements for this indicator are specified in the industry standard "YC / T 584-2019 Reconstituted Tobacco Process Specification". The standard "YC / T 16-2014 Reconstituted Tobacco" clearly states that the detection of the adhesion rate includes weighing the reconstituted tobacco leaves that are both connected and adhered. That is, the percentage of the mass of the reconstituted tobacco leaves that are connected and adhered to the mass of the sample. Connected leaves are reconstituted tobacco leaves with a single leaf length or width greater than 15cm. Adhesion refers to two or more reconstituted tobacco leaves that overlap or are connected at the edges and have not been fully separated.

[0004] Currently, the identification of contiguous and adhered reconstituted tobacco leaves is done manually. A 1000g sample is weighed into a self-sealing bag, and the sample is gradually poured onto a parallel tray to pick out contiguous and adhered leaves. However, in actual testing, this method is hampered by factors such as samples of similar or identical color, complete overlap of two leaves, wrinkling or curling of individual leaves making it difficult to pick out reconstituted tobacco leaves longer or wider than 15cm. This results in a minimum inspection time of 2 hours per person, leading to high labor costs, long processing times, and low efficiency. Furthermore, prolonged observation of reconstituted tobacco leaves can cause eye fatigue, potentially resulting in adhered leaves not being picked out, thus failing to accurately reflect the contiguous and adhered rate of the sample.

[0005] In summary, there is an urgent need to develop a device for rapidly detecting the adhesion of reconstituted tobacco leaves, reducing labor costs, facilitating the calculation of the adhesion rate, and improving the detection efficiency and accuracy of the adhesion rate. Utility Model Content

[0006] This invention primarily addresses the technical problems of current methods for identifying and separating fused and adhered reconstituted tobacco leaves, which involve manual selection, long inspection times for a single person, high labor costs, and low detection efficiency. It proposes a device for rapidly detecting fused and adhered reconstituted tobacco leaves, efficiently separating fused and adhered leaves, improving detection efficiency, reducing labor costs, providing support for convenient calculation of the fused and adhered rate, and ensuring the accuracy of the detected rate.

[0007] This utility model provides a device for rapidly detecting the adhesion of reconstituted tobacco leaves, comprising: a base and a shaking mechanism, a conveying mechanism, an air separation mechanism and a collecting mechanism disposed on the base;

[0008] A conveying mechanism is provided above the base; a shaking mechanism is provided above the conveying mechanism.

[0009] The vibrating mechanism includes: an upper vibrating screen and a lower vibrating screen; the lower vibrating screen is disposed above the conveying mechanism, and the upper vibrating screen is disposed above the lower vibrating screen; a funnel fixing plate is disposed below the lower vibrating screen; a baffle is fixedly disposed at one end of the funnel fixing plate near the conveying mechanism;

[0010] The base is provided with multiple collection drawers; the multiple collection drawers are located below the conveying mechanism; an air separation mechanism is provided below the discharge end of the conveying mechanism;

[0011] The air separation mechanism includes a centrifugal fan; the outlet of the centrifugal fan faces the collection drawer.

[0012] Preferably, the upper vibrating screen and the lower vibrating screen each include a vibrating screen frame and a vibrating screen mesh installed in the vibrating screen frame;

[0013] The mesh size of the upper vibrating screen is 80*80mm;

[0014] The lower vibrating screen has a mesh size of 40*40mm.

[0015] Preferably, the base has vibration holes at its four corners; an outer column is installed inside the vibration hole.

[0016] A lower inner column is inserted through the outer column, and the lower inner column is connected to the base; the lower inner column is connected to the vibration motor drive.

[0017] The upper vibrating screen has upper inner columns at the bottom of the four corners of the screen frame; the four upper inner columns are installed at the four corners of the screen mesh of the lower vibrating screen.

[0018] Preferably, the four corners of the funnel fixing plate are fixedly connected to the corresponding outer columns.

[0019] Preferably, the conveying mechanism includes: a conveyor motor, a conveyor belt, a drive shaft, and a driven shaft;

[0020] The drive shaft is connected to the transmission motor; both the drive shaft and the driven shaft are movably mounted above the base.

[0021] The conveyor belt is mounted on the drive shaft and the driven shaft; the discharge end of the conveyor belt is located at the end where the drive shaft is located.

[0022] Preferably, an electrical control box and a control panel are mounted on the base;

[0023] The centrifugal fan is fixedly installed directly above the electrical control box.

[0024] Preferably, the base is divided into three accommodating spaces by two partition plates;

[0025] The three storage spaces are equipped with three collection drawers that can be pushed and pulled out in sequence. The three collection drawers are called collection drawer number one, collection drawer number two, and collection drawer number three. Collection drawer number one is located near the air outlet of the centrifugal fan.

[0026] Preferably, the base is provided with an enclosure wall and a fan protective cover;

[0027] The enclosure wall has openings corresponding to the air outlets.

[0028] The present invention provides a device for rapidly detecting the adhesion of reconstituted tobacco leaves, which has the following advantages compared with the prior art:

[0029] 1. The upper and lower vibrating screens are used to screen the continuous and sticky thin sheets, leaving the thin sheets with a diameter greater than or equal to 40 mm in the upper and lower vibrating screens, and completely screening out the continuous sheets with a diameter greater than or equal to 40 mm, thus achieving preliminary screening.

[0030] 2. Air separation is performed at the outlet of the centrifugal fan. Under the same airflow conditions, the flakes fall at different distances due to their different masses. Normal flakes, being lighter, fall further and will land in collection drawer number three; completely overlapping flakes that have not separated fall closer and will land in collection drawers number one and two. This air separation separates completely overlapping flakes from normal flakes. By separating flakes of the same volume but different masses, air separation identifies connected and adhered flakes, providing support for calculating the flake adhesion rate and ensuring its accuracy.

[0031] 3. This utility model uses mechanical sorting to remove connected and adhered pieces instead of manual sorting, which can efficiently pick out connected and adhered pieces, improve detection efficiency, reduce labor costs, and protect the eye health of detection personnel.

[0032] 4. By collecting and weighing the samples to be tested from the upper vibrating screen, the lower vibrating screen, the first collection drawer, and the second collection drawer, the accuracy of the adhesion rate can be ensured. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the arrangement of the device for rapid detection of adhesion between reconstituted tobacco leaves provided by this utility model;

[0034] Figure 2 This is a schematic diagram of the device for rapidly detecting the adhesion of reconstituted tobacco leaves provided by this utility model;

[0035] Figure 3 This is a flowchart illustrating the detection method provided by this utility model.

[0036] Reference numerals: 1. Vibrating mechanism; 2. Conveying mechanism; 3. Base; 4. Air separation mechanism; 5. Collection mechanism; 6. Electrical box; 7. Centrifugal fan; 8. Lower inner column; 9. Funnel fixing plate; 10. Drive shaft; 11. Baffle; 12. Conveyor belt; 13. Outer column; 14. Driven shaft; 15. Air outlet; 16. Divider plate; 17. Collection drawer No. 1; 18. Control panel; 19. Upper vibrating screen; 20. Vibration hole; 21. Fan protective cover; 22. Upper inner column; 23. Lower vibrating screen; 24. Collection drawer No. 2; 25. Collection drawer No. 3. Detailed Implementation

[0037] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0038] like Figure 1-2 As shown in the figure, the present invention provides a device for rapid detection of the adhesion of reconstituted tobacco leaves, comprising: a base 3 and a shaking mechanism 1, a conveying mechanism 2, an air separation mechanism 4 and a collecting mechanism 5 disposed on the base 3.

[0039] A conveying mechanism 2 is installed above the base 3. An electrical control box 6 and a control panel 18 are installed on the base 3. An enclosure wall and a fan protective cover 21 are installed on the base 3; an opening corresponding to the air outlet 15 is opened on the enclosure wall.

[0040] The conveying mechanism 2 includes: a conveyor motor, a conveyor belt 12, a drive shaft 10, and a driven shaft 14. The drive shaft 10 is driven by the conveyor motor. Both the drive shaft 10 and the driven shaft 14 are movably mounted above the base 3, specifically within the enclosure wall on the base 3. Two pairs of identical circular holes are opened on the front and rear walls of the enclosure wall, each hole housing a bearing. The drive shaft 10 and the driven shaft 14 are movably connected within the bearings. The drive shaft 10 and the driven shaft 14 are movably connected between the front and rear walls. The drive shaft 10 is movably connected within the left bearing, and the driven shaft 14 is movably connected within the right bearing. The conveyor motor is fixed near the drive shaft 10 on the front wall of the enclosure wall and is electrically connected to the electrical control box 6. The conveyor belt 12 is mounted on the drive shaft 10 and the driven shaft 14; the discharge end of the conveyor belt 12 is located at the end where the drive shaft 10 is located. The conveyor motor is driven by the drive shaft 10 and drives the conveyor belt 12 via the driven shaft 14.

[0041] A vibrating mechanism 1 is disposed above the conveying mechanism 2. The vibrating mechanism 1 includes an upper vibrating screen 19 and a lower vibrating screen 23; the lower vibrating screen 23 is disposed above the conveying mechanism 2, and the upper vibrating screen 19 is disposed above the lower vibrating screen 23. The upper vibrating screen 19 and the lower vibrating screen 23 each include a vibrating screen frame and a vibrating screen mesh installed in the vibrating screen frame; the mesh aperture of the upper vibrating screen 19 is 80*80mm; the mesh aperture of the lower vibrating screen 23 is 40*40mm. The vibrating screen frame is square in shape and consists of 4 side plates and 4 pressure plates for fixing the vibrating screen mesh. The pressure plates inside the vibrating screen frame of the lower vibrating screen 23 have a trapezoidal inner design.

[0042] The base 3 serves as the main frame, with vibration holes 20 at its four corners. Outer columns 13 are installed within the vibration holes 20. Lower inner columns 8 pass through the outer columns 13 and are connected to the base 3. The outer columns 13 and lower inner columns 8 are fixedly installed on the ground of the base 3. The lower inner columns 8 are connected to a vibration motor. Upper inner columns 22 are installed at the bottom of each of the four corners of the screen frame of the upper vibrating screen 19. These four upper inner columns 22 are detachably installed at the four corners of the screen mesh of the lower vibrating screen 23. Both the lower inner columns 8 and the upper inner columns 25 are solid columns combined with springs.

[0043] A funnel fixing plate 9 is installed below the lower vibrating screen 23; the four corners of the funnel fixing plate 9 are fixedly connected to the corresponding outer columns 13. A baffle 11 is fixedly installed at one end of the funnel fixing plate 9 near the conveyor mechanism 2. The length of the baffle 11 is the same as the width of the conveyor belt 12, and it is installed above the conveyor belt 12.

[0044] A wind classifier 4 is installed below the discharge end of the conveying mechanism 2. The wind classifier 4 includes a centrifugal fan 7; the air outlet 15 of the centrifugal fan 7 faces the collection drawer. The centrifugal fan 7 is fixedly installed above the electrical control box 6. The centrifugal fan has a power of 0-50Hz, and the air outlet 15 is fixedly installed perpendicular to the left wall of the enclosure, flush with the left wall, and located below the discharge end of the conveyor belt 12. The centrifugal fan 7 is electrically connected to the electrical control box 6.

[0045] The base 3 is provided with multiple collection drawers, which are located below the conveying mechanism 2. The base 3 is divided into three accommodating spaces by two partition plates 16; the three accommodating spaces are equipped with three collection drawers that can be pushed and pulled in sequence. The three collection drawers are independent, movable, and can be pushed and pulled, and are designated as collection drawer 17, collection drawer 24, and collection drawer 25; collection drawer 17 is located near the air outlet 15 of the centrifugal fan 7.

[0046] The transmission motor, vibration motor, and centrifugal fan 7 are all electrically connected to the electrical control box 6, which supplies power and controls each electrical control device.

[0047] The working principle of the device for rapid detection of fused and adhered reconstituted tobacco leaves provided in this embodiment of the utility model is as follows: The sample to be tested is placed in the upper vibrating screen 19, the screen mesh of the upper vibrating screen 19 has a mesh size of 80*80mm, and some thin sheets larger than or equal to 80mm (in the case of fused and adhered sheets) are left in the upper vibrating screen 19, while the thin sheets that pass through the upper vibrating screen 19 continue to be screened by the lower vibrating screen 23; the screen mesh of the lower vibrating screen 23 has a mesh size of 40*40mm, and thin sheets larger than or equal to 40mm (in the case of fused and adhered sheets) are completely left in the lower vibrating screen 23, but two or more completely overlapping thin sheets (in the case of adhered sheets) will pass through the lower vibrating screen 23, and the sample to be tested completely passes through the lower vibrating screen 23.

[0048] The thin film passing through the lower vibrating screen 23 falls onto the running conveyor belt 12, which transports the screened film from right to left. The accumulated film is scraped flat by the baffle 11 and then falls evenly along the left edge.

[0049] While the conveyor belt 12 is feeding samples to the left, the outlet 15 of the centrifugal fan 7 is also performing air separation. Under the same air force, the flakes fall at different distances due to their different masses. Normal flakes are lighter and fall further away, so they will fall into the third collection drawer 25. Flakes that are completely overlapped and not separated (in the case of stuck flakes) fall closer and will fall into the first collection drawer 17 and the second collection drawer 24. Thus, the air separation separates the completely overlapped flakes from the normal flakes.

[0050] After the above screening, the continuous and adhered thin sheets are placed in the upper vibrating screen 19, the lower vibrating screen 23, the first collection drawer 17, and the second collection drawer 24.

[0051] like Figure 3 The following describes the application process of the device for rapidly detecting the adhesion of reconstituted tobacco leaves:

[0052] Step 1: Weigh a certain weight of the sample to be tested and determine the standard weight of a single normal sample.

[0053] Specifically, take an appropriate amount of sample from the retained samples and seal it in a self-sealing bag for later use. Weigh 1000g of the sample from the self-sealing bag for the adhesion test. A normal sample is, for example, a rhomboid reconstituted tobacco leaf with a size of 30*30mm, and the standard weight of a single leaf is known.

[0054] Step 2: Using the device for rapid detection of fused and adhered reconstituted tobacco leaves provided in any embodiment of this utility model, the sample to be tested is screened; the fused and adhered thin sheets are placed in the upper vibrating screen 19, the lower vibrating screen 23, the first collection drawer 17, and the second collection drawer 24.

[0055] The power of centrifugal fan 7 was determined based on the standard weight of a single sample. The relationship between the standard weight of a single sample and the power of centrifugal fan 7 is shown in Table 1.

[0056] Table 1. Relationship between standard weight of a single piece and power of centrifugal fan 7

[0057] Sample single-piece quality 0.07-0.09 0.09-0.11 0.11-0.13 0.13-0.15 0.15-0.17 Centrifugal fan power 20Hz 25Hz 30Hz 35Hz 40Hz Control panel displays fan speed. 1st gear 2nd gear 3rd gear 4 gears 5 gears

[0058] Before using the rapid detection device for clump adhesion in reconstituted tobacco leaves, turn on all power supplies in the electrical control box 6 and set the power of the centrifugal fan 7 on the control panel 18. After the samples to be tested are screened, turn off the electrical control box 6.

[0059] Step 3: Collect and weigh the samples to be tested from the upper vibrating screen 19, the lower vibrating screen 23, the first collection drawer 17, and the second collection drawer 24.

[0060] Due to differences in quality, the air-separated flakes ultimately land in different drawers. Take out the three collection drawers. Normally, a single flake will land in collection drawer number 3 (25) after air separation, which can be briefly inspected. Carefully examine the flakes in collection drawers number 1 (17) and number 2 (24). Use self-sealing bags to collect the flakes from the upper vibrating screen (19), lower vibrating screen (23), collection drawer number 1 (17), and collection drawer number 24.

[0061] Step 4: Calculate the adhesion rate of the connected pieces using the following formula:

[0062]

[0063] In the formula, V represents the adhesion rate of reconstituted tobacco leaves, in %; d represents the mass of the connected and adhered leaves, in grams; and w represents the mass of the sample to be tested, in grams.

[0064] Step 5: After calculating the adhesion rate, clean the device for rapid detection of adhesion of reconstituted tobacco leaves and recover the sample.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for rapid detection of reconstituted tobacco webbing, characterized by, include: The base (3) and the shaking mechanism (1), conveying mechanism (2), air separation mechanism (4) and collecting mechanism (5) disposed on the base (3); A conveying mechanism (2) is provided above the base (3); a shaking mechanism (1) is provided above the conveying mechanism (2); The vibrating mechanism (1) includes an upper vibrating screen (19) and a lower vibrating screen (23); the lower vibrating screen (23) is disposed above the conveying mechanism (2), and the upper vibrating screen (19) is disposed above the lower vibrating screen (23); a funnel fixing plate (9) is disposed below the lower vibrating screen (23); a baffle (11) is fixedly disposed at one end of the funnel fixing plate (9) near the conveying mechanism (2); The base (3) is provided with multiple collection drawers; the multiple collection drawers are located below the conveying mechanism (2); the conveying mechanism (2) is provided with an air separation mechanism (4) below the discharge end; The air separation mechanism (4) includes a centrifugal fan (7); the outlet (15) of the centrifugal fan (7) faces the collection drawer.

2. The apparatus for quickly detecting reconstituted sheet tobacco piece sticking according to claim 1, wherein, The upper vibrating screen (19) and the lower vibrating screen (23) respectively include a vibrating screen frame and a vibrating screen mesh installed in the vibrating screen frame; The mesh size of the upper vibrating screen (19) is 80*80mm; The lower vibrating screen (23) has a screen mesh size of 40*40mm.

3. The apparatus for quickly detecting reconstituted sheet tobacco piece sticking according to claim 2, wherein, The base (3) has vibration holes (20) at its four corners; an outer column (13) is installed inside the vibration hole (20); A lower inner column (8) is inserted inside the outer column (13), and the lower inner column (8) is connected to the base (3); the lower inner column (8) is connected to the vibration motor. The upper vibrating screen (19) has upper inner columns (22) at the bottom of the four corners of the screen frame; the four upper inner columns (22) are installed at the four corners of the screen mesh of the lower vibrating screen (23).

4. The apparatus for quickly detecting reconstituted sheet tobacco piece sticking according to claim 3, wherein, The four corners of the funnel fixing plate (9) are fixedly connected to the corresponding outer columns (13).

5. The apparatus for quickly detecting reconstituted sheet tobacco piece sticking of claim 1, wherein, The conveying mechanism (2) includes: a conveying motor, a conveyor belt (12), a drive shaft (10), and a driven shaft (14); The drive shaft (10) is connected to the transmission motor; both the drive shaft (10) and the driven shaft (14) are movably mounted above the base (3); The conveyor belt (12) is mounted on the drive shaft (10) and the driven shaft (14); the discharge end of the conveyor belt (12) is located at the end of the drive shaft (10).

6. The apparatus for quickly detecting reconstituted sheet tobacco piece sticking of claim 1, wherein, An electrical control box (6) and a control panel (18) are provided on the base (3); The centrifugal fan (7) is fixedly installed directly above the electrical control box (6).

7. The apparatus for quickly detecting reconstituted sheet tobacco piece sticking of claim 1, wherein, The base (3) is divided into three accommodating spaces by two partition plates (16); The three storage spaces are equipped with three collection drawers that can be pushed and pulled in sequence. The three collection drawers are collection drawer No. 1 (17), collection drawer No. 2 (24), and collection drawer No. 3 (25). Collection drawer No. 1 (17) is close to the air outlet (15) of the centrifugal fan (7).

8. The device for rapid detection of fused and adhered reconstituted tobacco leaves according to claim 7, characterized in that, An enclosure wall and a fan protective cover (21) are provided on the base (3); An opening corresponding to the air outlet (15) is made on the enclosure wall.

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