Tobacco leaf mildew detection device

Abstract

The utility model discloses a tobacco leaf mildewing detection device, which belongs to the field of tobacco leaf detection equipment, aims at solving the problem that the existing tobacco leaf detection and transportation efficiency is difficult, and comprises a transmission mechanism, a detection mechanism and a control mechanism, the detection mechanism is arranged above the transmission mechanism and corresponds to the first conveying belt and the second conveying belt. The turnover mechanism is arranged between the first conveying belt and the second conveying belt and comprises a turnover shaft seat installed between the first conveying belt and the second conveying belt, two turnover arms connected to the two sides of the turnover shaft seat, pressing assemblies installed on the turnover arms and limiting blocks arranged above the pressing assemblies. The two overturning arms correspond to the first conveying belt and the second conveying belt respectively, hollow structures are arranged in the two overturning arms, and when the overturning arms rotate upwards, the pressing assemblies abut against the limiting blocks, and acting force is generated to abut against tobacco leaves. Tobacco leaves can be flexibly clamped when the tobacco leaves are turned over in a double-face mode, and the tobacco leaves are prevented from deviating, falling off and wrinkling.

Description

Technical Field

[0001] This utility model relates to a tobacco leaf mold detection device, belonging to the field of tobacco leaf detection technology. Background Technology

[0002] In the tobacco industry, tobacco leaf quality control is a crucial step, and mold growth is a key factor affecting its quality. Mold growth is a common problem during tobacco processing and storage. It not only affects the appearance and quality of the tobacco leaves but can also produce harmful substances, posing a threat to consumer health. Therefore, preventing moldy tobacco leaves from entering subsequent production processes and implementing effective mold prevention measures has become an important issue that urgently needs to be addressed in cigarette production.

[0003] Existing technologies for detecting mold in tobacco leaves primarily involve visual inspection. While a single set of equipment can be used to repeat a single-sided inspection process to achieve double-sided inspection, this repetitive process results in low efficiency and long turnaround times. To improve efficiency, existing inspection equipment incorporates clamping devices to flip the leaves, enabling multi-sided inspection. However, clamping and moving the leaves easily leads to leaf detachment, wrinkling, curling, and breakage. Consequently, existing inspection lines suffer from high false negative rates and significant leaf waste, resulting in high production costs and failing to meet the stringent quality control requirements of actual production. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to overcome the shortcomings of the prior art and provide a tobacco leaf mold detection device that can shorten the double-sided detection cycle of tobacco leaves through a flipping mechanism, and flexibly clamp the tobacco leaves when flipping them through a pressing component, so as to achieve non-destructive transfer and transition of tobacco leaves between the transmission mechanisms and reduce the risk of leaf drop and breakage.

[0005] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution:

[0006] A tobacco leaf mold detection device, comprising:

[0007] The transmission mechanism includes a first conveyor belt and a second conveyor belt;

[0008] The detection mechanism is located above the transmission mechanism and is respectively positioned corresponding to the first conveyor belt and the second conveyor belt;

[0009] The flipping mechanism, disposed between the first conveyor belt and the second conveyor belt, includes: a flipping shaft seat installed between the first conveyor belt and the second conveyor belt, two flipping arms connected to both sides of the flipping shaft seat, a pressing assembly installed on the flipping arms, and a limiting block disposed above the pressing assembly;

[0010] The two tilting arms correspond to the first conveyor belt and the second conveyor belt respectively, and the interior of the two tilting arms is provided with a hollow structure for receiving and accommodating tobacco leaves.

[0011] The pressing component is movably inserted into the flipping arm. When the flipping arm rotates upward, the pressing component abuts against the limiting block, generating a force to drive the pressing component to move downward until it presses against the tobacco leaf, thus preventing the leaf from shifting, falling off, or wrinkling.

[0012] Optionally, the transmission mechanism, the flipping mechanism, and the detection mechanism are all mounted on a frame, with a first motor mounted at one end of the frame and a second motor mounted on the side of the frame closer to the flipping mechanism.

[0013] The power end of the first motor is connected to the first conveyor belt or the second conveyor belt, and the first conveyor belt and the second conveyor belt are connected by a synchronization mechanism.

[0014] The power end of the second motor is connected to the tilting shaft seat.

[0015] Optionally, the flipping shaft seat includes a bearing seat mounted on the frame, a rotating shaft fitted in the bearing seat, and a flipping roller fixedly connected to the rotating shaft;

[0016] The rotating shaft is connected to the power end of the second motor;

[0017] The two sides of the flipping roller are respectively connected to two flipping arms;

[0018] When the tilting arm near the first conveyor belt receives tobacco leaves, the power of the second motor drives the rotating shaft and the tilting roller to rotate. When the tilting roller rotates, it drives the tilting arm near the first conveyor belt to rotate toward the second conveyor belt.

[0019] Optionally, the hollow structure is U-shaped;

[0020] Both of the two flipping arms are provided with elastic connectors on the inner wall near the pressing assembly;

[0021] The two tilting arms are also equipped with proximity sensors.

[0022] Optionally, the clamping assembly includes a guide opening on the flip wall, a movable plate inserted into the guide opening, a connecting rod connected to one end of the movable plate, a pressure plate connected to the other end of the movable plate, and an elastic clamping member provided on one side of the pressure plate.

[0023] Optionally, the elastic clamping member includes a plurality of second springs connected to the pressure plate, a corrugated sleeve fitted over the second springs, and a washer connected to the bottom of the second springs.

[0024] The two ends of the connecting rod are fitted with pulleys, which are used to slide in contact with the limiting block;

[0025] When the tilting arm near the first conveyor belt rotates upward, the connecting rod abuts against the limiting block, thereby causing the movable plate and pressure plate to move downward and be squeezed by the elastic clamping component, thus causing the pressing assembly to clamp the tobacco leaves.

[0026] Optionally, the detection mechanism includes a first detection unit and a second detection unit respectively mounted on the frame and located above the first conveyor belt and the second conveyor belt;

[0027] Both the first detection unit and the second detection unit include a detection bracket mounted on a frame, a camera device connected to the detection bracket, and supplementary lighting equipment connected to the detection bracket and arranged around the camera device.

[0028] Optionally, the detection device further includes a leak-proof component, which includes a first leak-proof seat and a second leak-proof seat mounted on the frame and respectively attached to the ends of the first conveyor belt and the second conveyor belt.

[0029] Optionally, the first and second leak-proof seats are arc-shaped, with their arc centers coinciding with the axis of rotation, and the distance from the surface of the first and second leak-proof seats to the axis of rotation is greater than the distance from the edge of the flip arm to the axis of rotation.

[0030] Beneficial effects: Compared with the prior art, this utility model has the following advantages:

[0031] The flipping mechanism enables the transfer and flipping of tobacco leaves between the first and second conveyor belts. It achieves double-sided inspection of tobacco leaves without the need for additional auxiliary equipment and shortens the double-sided inspection cycle. When the flipping mechanism flips, the clamping component abuts against the limit block, generating force to drive the clamping component to move downward until it presses against the tobacco leaves. The clamping component flexibly holds the tobacco leaves during flipping and releases the fixation of the tobacco leaves in time after flipping to the correct position. This allows the tobacco leaves to be transferred and transitioned between the transmission mechanisms without damage and reduces the risk of leaf drop and breakage.

[0032] The elastic connector and the elastic clamping component are arranged on both sides of the pressure plate. The elastic connector keeps the pressing assembly and the flipping arm floatingly connected. The elastic clamping component provides elastic clamping for the tobacco leaves, which can adapt to tobacco leaves of different thicknesses, prevent damage to the tobacco leaves, and ensure the clamping force during the flipping process. Attached Figure Description

[0033] Figure 1 The image shown is a side view of the tobacco leaf mold detection device of this utility model. Figure 1 ;

[0034] Figure 2 The image shown is a side view of the tobacco leaf mold detection device of this utility model. Figure 2 ;

[0035] Figure 3The image shown is a side view of the flipping mechanism of this utility model. Figure 1 ;

[0036] Figure 4 The image shown is a side view of the flipping mechanism of this utility model. Figure 2 ;

[0037] Figure 5 The image shown is a side view of the flipping mechanism of this utility model. Figure 3 ;

[0038] Figure 6 The diagram shown is a structural schematic of the testing mechanism of this utility model;

[0039] Figure 7 The diagram shown is a schematic diagram of the synchronization mechanism of the flipping mechanism of this utility model.

[0040] In the diagram: 1. Frame; 2. Second conveyor belt; 3. Detection box; 4. Control device; 5. Alarm; 6. First conveyor belt; 7. First motor; 8. Support frame; 9. Second motor; 10. Transmission roller; 11. Leak-proof seat; 12. Tilting mechanism; 1201. Rotating shaft; 1202. Tilting roller; 1203. Tilting arm; 1204. Limiting block; 1205. Connecting rod; 1206. Movable plate; 1207. Pressure plate; 1208. Corrugated sleeve; 1209. Pulley; 1210. Elastic clamp; 1211. Gasket; 1212. Proximity sensor; 1213. Elastic connector; 1214. Guide port; 13. Detection bracket; 14. Camera device; 15. Lighting device; 16. Synchronous belt. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0042] Example 1

[0043] This embodiment provides a tobacco leaf mold detection device, such as... Figures 1 to 2The system includes a transmission mechanism, a detection mechanism, and a flipping mechanism 12. All three mechanisms are mounted on a frame 1. The transmission mechanism includes a first conveyor belt 6 and a second conveyor belt 2. The detection mechanism is positioned above the transmission mechanism and corresponds to the first conveyor belt 6 and the second conveyor belt 2, respectively. The flipping mechanism 12 is located between the first conveyor belt 6 and the second conveyor belt 2. Through the flipping mechanism 12, tobacco leaves can be transmitted and flipped between the first conveyor belt 6 and the second conveyor belt 2, enabling simultaneous double-sided detection of tobacco leaves without the need for additional auxiliary equipment, thus shortening the detection cycle. During the flipping process, considering the ease with which tobacco leaves may shift or fall off, the flipping mechanism 12 includes a flipping shaft 1201 base, two flipping arms 1203, and a limiting block 1204. The flipping shaft 1201 base is mounted on the frame 1 and located between the first conveyor belt 6 and the second conveyor belt 2. The two flipping arms 1203 are connected to both sides of the flipping shaft 1201 base. A pressing assembly is mounted on the flipping arms 1203. The limiting block 1204 is connected to the frame 1 and positioned above the pressing assembly. The two tilting arms 1203 correspond to the first conveyor belt 6 and the second conveyor belt 2 respectively, and the interior of the two tilting arms 1203 is provided with a hollow structure for receiving and accommodating tobacco leaves; the pressing component is movably inserted into the tilting arm 1203. When the tilting arm 1203 rotates upward, the pressing component abuts against the limiting block 1204, generating a force to drive the pressing component to move downward until it presses against the tobacco leaves, preventing the leaves from shifting, falling off, or wrinkling.

[0044] In this embodiment, the first conveyor belt 6 and the second conveyor belt 2 serve as the input and output mechanisms, respectively. The double-sided inspection cycle is shortened to 1 / 2 of the traditional solution, that is, double-sided inspection is completed in a single flip. In addition, the clamping force is dynamically and adaptively adjusted with the rotation angle of the flipping mechanism 12 to avoid tobacco leaf wrinkles. Furthermore, no additional robotic arm or vacuum adsorption device is required, reducing the complexity of the equipment.

[0045] Four first mounting holes are provided on both sides of the frame 1. The inner walls of the first mounting holes are rotatably connected to connecting shafts via bearings. One end of two adjacent connecting shafts is fixedly installed with a transmission roller 10. The inner walls of both ends of the first conveyor belt 6 and the inner walls of both ends of the second conveyor belt 2 are connected to the transmission rollers 10. A first motor 7 is installed at one end of the frame 1. In this embodiment, the power end of the first motor 7 is connected to the transmission rollers 10 of the first conveyor belt 6. The two connecting shafts of the first conveyor belt 6 and the second conveyor belt 2 that are close to each other are provided with a synchronization mechanism. The synchronization mechanism includes a transmission wheel and a synchronization belt 16. The transmission wheel is installed on the connecting shaft of the first conveyor belt 6 and the second conveyor belt 2. The synchronization belt 16 is fitted on the transmission wheel, so that the power of the first motor 7 drives the first conveyor belt 6 to rotate. When the first conveyor belt 6 rotates, it drives the second conveyor belt 2 to move through the transmission wheel and the synchronization belt 16, so as to realize the synchronous transportation of the first conveyor belt 6 and the second conveyor belt 2. A second motor 9 is installed on the side of the frame 1 near the flipping mechanism 12. The power end of the second motor 9 is connected to the flipping shaft 1201 seat, driving the flipping mechanism 12 to rotate between the first conveyor belt 6 and the second conveyor belt 2.

[0046] Optionally, the tilting shaft 1201 includes: a bearing housing, a rotating shaft 1201, and a tilting roller 1202; the bearing housing is mounted on the frame 1, the rotating shaft 1201 is fitted in the bearing housing, the rotating shaft 1201 is connected to the power end of the second motor 9, and can rotate with the power output by the second motor 9, the tilting roller 1202 is fixedly connected to the rotating shaft 1201, and both sides of the tilting roller 1202 are respectively connected to two tilting arms 1203; the two tilting arms 1203 then reciprocate 180° under the power drive of the second motor 9. When the tilting arm 1203 close to the first conveyor belt 6 receives tobacco leaves, the power of the second motor 9 drives the rotating shaft 1201 and the tilting roller 1202 to rotate. When the tilting roller 1202 rotates, it drives the tilting arm 1203 close to the first conveyor belt 6 to rotate toward the second conveyor belt 2. Simultaneously, as the tobacco leaves rotate near the second conveyor belt 2, the clamping assembly disengages from the limiting block 1204, and the clamping assembly contacts the tobacco leaves, allowing the tobacco leaves to naturally slide onto the second conveyor belt 2 as they approach it. This facilitates the use of the next detection unit to detect the reverse side of the tobacco leaves, achieving comprehensive and non-destructive testing of both sides of the tobacco leaves.

[0047] Optionally, the hollow structure is U-shaped; in this embodiment, the U-shaped opening direction corresponds to the tobacco leaf conveying plane, enabling the reception and transfer of tobacco leaves between the two conveyor belts. Both tilting arms 1203 have elastic connectors 1213 on their inner walls near the clamping assembly, maintaining a floating connection with the clamping assembly through the elastic connectors 1213. In this embodiment, the elastic connector 1213 is not a first spring, providing elastic connection while also allowing for adjustable clamping force to accommodate tobacco leaves with different clamping pressure requirements. Proximity sensors 1212 are also installed in the two tilting arms 1203, electrically connected to the control device 4, enabling the detection of tobacco leaf entry and exit, achieving high-precision and high-reliability automated tobacco detection.

[0048] Optional, such as Figure 3 As shown, the clamping assembly includes: a guide port 1214, a movable plate 1206, a connecting rod 1205, a pressure plate 1207, and an elastic clamping member 1210; the guide port 1214 is formed on the tilting wall, the movable plate 1206 is inserted into the guide port 1214, the connecting rod 1205 is connected to one end of the movable plate 1206, and the pressure plate 1207 is connected to the other end of the movable plate 1206 and is placed inside the tilting arm 1203; the elastic clamping member 1210 is connected to one end of the pressure plate 1207. On the other hand, in this embodiment, the guide port 1214 and the movable plate 1206 adopt a rectangular through-slot design to constrain the movement direction of the movable plate 1206 and ensure that the clamping force is applied vertically to the surface of the tobacco leaf. The movable plate 1206 transmits the reaction force of the elastic clamping member 1210 to the pressure plate 1207. At the same time, as the mounting base of the connecting rod 1205, the pressure plate 1207 indirectly contacts the tobacco leaf through the elastic clamping member 1210, which can buffer the pressure and avoid causing clamping marks on the tobacco leaf after clamping, thus affecting the test results.

[0049] Optionally, the elastic clamping member 1210 includes: multiple second springs, a corrugated sleeve 1208, and a washer 1211; the multiple second springs are connected to the pressure plate 1207, the corrugated sleeve 1208 is fitted on the outside of the second springs, and the washer 1211 is connected to the bottom of the second springs; pulleys 1209 are fitted at both ends of the connecting rod 1205, and the pulleys 1209 are used to slide in contact with the limiting block 1204; the side of the limiting block 1204 facing the pulley 1209 is an inclined stop. According to actual needs, the side of the limiting block 1204 facing the pulley 1209 in this embodiment can also be designed as a curved surface. At the same time, the height of the limiting block 1204 can also be adjusted according to the specific tobacco leaves to suppress pressure fluctuations during the flipping process, which is suitable for flexible clamping of various tobacco leaves.

[0050] In this embodiment, when the tilting arm 1203 near the first conveyor belt 6 rotates upward, the connecting rod 1205 abuts against the limiting block 1204, and the pulley 1209 moves along the limiting block 1204, thereby generating a downward reaction force and friction between the connecting rod 1205 and the limiting block 1204. The reaction force drives the movable plate 1206 and the pressure plate 1207 to move downward, and clamps the tobacco leaf through the elastic clamping member 1210, so that the tobacco leaf is not affected by the tilting arm 1203. When the connecting rod 1205 disengages from the limiting block 1204, the undetected side of the tobacco leaf faces upward and gradually approaches the second conveyor belt 2. The connecting rod 1205, the movable plate 1206, and the pressure plate 1207 are located below the tilting arm 1203. The force exerted by the limiting block 1204 on the movable plate 1206 and the pressure plate 1207 disappears. At the same time, the gravity of the connecting rod 1205, the movable plate 1206, and the pressure plate 1207 overcomes the elastic force of the elastic connector 1213, releasing the elastic clamping force on the tobacco leaf. The tobacco leaf naturally transitions onto the second conveyor belt 2. In this embodiment, through the gradient combination of elastic elements and the sliding stroke design of the limiting block 1204-pulley 1209 mechanism, high-precision, low-damage, and fully compatible tilting and transport of tobacco leaves is achieved.

[0051] Optionally, the testing mechanism includes: testing box 3, a first testing unit, and a second testing unit; such as... Figure 6 The first and second detection units shown both include: a detection bracket 13, a camera device 14, and a supplementary lighting device 15; the detection box 3 is mounted on the frame 1, the detection bracket 13 is mounted on the detection box 3, the camera device 14 is connected to the detection bracket 13, and the supplementary lighting device 15 is connected to the detection bracket 13 and arranged around the camera device 14. In this embodiment, the supplementary lighting device 15, the camera device 14, and the control device 4 are electrically connected to ensure uniform illumination in various environments, enabling the camera device 14 to perform high-precision detection of tobacco leaves.

[0052] Optionally, the control device 4 is installed on one side of the detection box 3. The control device 4 is also connected to the alarm 5. When moldy tobacco leaves are detected, the device will trigger the alarm 5 to remind the operator to deal with it in time.

[0053] Optionally, the detection device further includes a leak-proof component, which includes a first leak-proof seat 11 and a second leak-proof seat 11 mounted on the frame 1 and respectively attached to the ends of the first conveyor belt 6 and the second conveyor belt 2. In this embodiment, the leak-proof component is arranged at the joint between the first conveyor belt 6 and the second conveyor belt 2, and the gap is sealed by the arc-shaped leak-proof seat 11 to prevent tobacco leaf debris or whole tobacco leaves from getting stuck in the gap, thus avoiding equipment failure or product contamination.

[0054] Optionally, the first leak-proof seat 11 and the second leak-proof seat 11 are arc-shaped, with their arc centers coinciding with the axis of the rotating shaft 1201. Furthermore, the distance from the surface of the first and second leak-proof seats 11 to the axis of the rotating shaft 1201 is greater than the distance from the edge of the flipping arm 1203 to the axis of the rotating shaft 1201. This arc-shaped design avoids contact with the flipping mechanism 12, resulting in no wear and a long service life for the equipment.

[0055] Optionally, the bottom of the frame 1 is also provided with a support frame 8, and the four corners of the bottom of the support frame 8 are fixedly installed with casters, which can make the equipment move flexibly to adapt to different production line layouts, while providing stable support.

[0056] Working principle:

[0057] After the first motor 7 starts, it drives the first conveyor belt 6 to rotate through the transmission roller 10, gradually conveying the tobacco leaves from one side of the frame 1 to the turning mechanism 12 in the middle, and ensuring that the two conveyor belts move synchronously through the cooperation of the synchronous belt 16 and the transmission wheel.

[0058] During the transport process, the control device 4 activates the first detection unit of the detection mechanism, captures the fine structure and features of the tobacco leaf surface through the camera device 14, and provides uniform illumination to the camera device 14 in various environments through the supplementary lighting device 15. The control device 4 will also trigger the alarm 5 to remind the operator to deal with abnormal tobacco leaves and equipment failures in a timely manner.

[0059] When the tobacco leaves approach the flipping mechanism 12 along the first conveyor belt 6, the proximity sensor 1212 detects the approach of the tobacco leaves. The control device 4 drives the second motor 9 to start, driving the rotating shaft 1201 to rotate 1201. This causes the flipping roller 1202 and the flipping arm 1203 to move upward until the pulley 1209 on the connecting rod 1205 contacts the limiting block 1204. The pulley 1209 moves along the limiting block 1204, thereby generating a downward reaction force and friction between the connecting rod 1205 and the limiting block 1204. The reaction force drives the movable plate 1206 and the pressure plate 1207 to move downward, and clamps the tobacco leaves through the elastic clamping member 1210. This ensures that the tobacco leaves are not affected by the flipping arm 1203 and can rotate with the flipping arm 1203 when flipping, avoiding the problem of the tobacco leaves slipping during flipping.

[0060] When the connecting rod 1205 disengages from the limiting block 1204, the undetected side of the tobacco leaf faces upward and gradually rotates closer to the second conveyor belt 2. At this time, the connecting rod 1205, the movable plate 1206, and the pressure plate 1207 rotate downwards on the second conveyor belt 2. The force exerted by the limiting block 1204 on the movable plate 1206 and the pressure plate 1207 disappears. At the same time, the gravity of the connecting rod 1205, the movable plate 1206, and the pressure plate 1207 overcomes the elastic force of the elastic connector 1213, releasing the elastic clamping force on the tobacco leaf, and the tobacco leaf naturally transitions onto the second conveyor belt 2.

[0061] After the tobacco leaves arrive on the second conveyor belt 2, the second detection unit of the detection mechanism is activated to detect the reverse side of the tobacco leaves, thus achieving comprehensive detection of both the front and back sides of the tobacco leaves.

[0062] Example 2

[0063] This embodiment provides a tobacco leaf mold detection device, which, based on the basic concept of Embodiment 1, includes: a transmission mechanism, a detection mechanism, and a flipping mechanism. All three mechanisms are mounted on a frame. The transmission mechanism includes a first conveyor belt and a second conveyor belt. The detection mechanism is positioned above the transmission mechanism and corresponds to both the first and second conveyor belts. The flipping mechanism is located between the first and second conveyor belts, enabling the transmission and flipping of tobacco leaves between them. This allows for simultaneous completion of the double-sided tobacco leaf detection process without additional auxiliary equipment, shortening the detection cycle. During the flipping process, considering the ease with which tobacco leaves may shift or fall off, the flipping mechanism includes: a flipping shaft seat, two flipping arms, and a limiting block. The flipping shaft seat is mounted on the frame and located between the first and second conveyor belts. The two flipping arms are connected to both sides of the flipping shaft seat. A pressing assembly is mounted on the flipping arms, and the limiting block is connected to the frame and positioned above the pressing assembly. The two tilting arms correspond to the first conveyor belt and the second conveyor belt respectively, and the interior of the two tilting arms is provided with a hollow structure for receiving and accommodating tobacco leaves; the pressing component is movably inserted into the tilting arm. When the tilting arm rotates upward, the pressing component abuts against the limiting block, generating a force to drive the pressing component to move downward until it presses against the tobacco leaves, preventing the leaves from shifting, falling off, or wrinkling.

[0064] Optionally, a first motor is installed at one end of the frame near the second conveyor belt. In this embodiment, the power end of the first motor is connected to the drive roller of the second conveyor belt. A synchronization mechanism is provided on the two connecting shafts of the first and second conveyor belts, including a drive wheel and a timing belt. The drive wheel is mounted on the connecting shaft of the first and second conveyor belts, and the timing belt is fitted onto the drive wheel. Thus, the power of the first motor drives the second conveyor belt to rotate. When the second conveyor belt rotates, it drives the first conveyor belt to move through the drive wheel and the timing belt, achieving synchronous transport of the first and second conveyor belts. A second motor is installed on the side of the frame near the flipping mechanism. The direction of the second motor is adjusted to drive the flipping mechanism to flip from the second conveyor belt to the first conveyor belt. A limit block is also located near the second conveyor belt, allowing for rapid changes in the input and output functions of the first and second conveyor belts according to actual needs, flexibly adapting to production line layout and industry adjustment requirements.

[0065] This invention enables the transfer and flipping of tobacco leaves between the first and second conveyor belts via a flipping mechanism. It achieves double-sided detection of tobacco leaves and shortens the double-sided detection cycle without the need for additional auxiliary equipment. When the flipping mechanism flips, the pressing component abuts against the limiting block, generating a force to drive the pressing component to move downward until it presses against the tobacco leaves, thus preventing leaf displacement, detachment, and wrinkling.

[0066] The elastic connector and the elastic clamping component are arranged on both sides of the pressure plate. The elastic connector keeps the pressing assembly and the flipping arm floatingly connected. The elastic clamping component provides elastic clamping for the tobacco leaves, which can adapt to tobacco leaves of different thicknesses, prevent damage to the tobacco leaves, and ensure the clamping force during the flipping process.

[0067] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0068] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A device for detecting mold growth in tobacco leaves, characterized in that, include: The transmission mechanism includes a first conveyor belt and a second conveyor belt; The detection mechanism is located above the transmission mechanism and is respectively positioned corresponding to the first conveyor belt and the second conveyor belt; The flipping mechanism, disposed between the first conveyor belt and the second conveyor belt, includes: a flipping shaft seat installed between the first conveyor belt and the second conveyor belt, two flipping arms connected to both sides of the flipping shaft seat, a pressing assembly installed on the flipping arms, and a limiting block disposed above the pressing assembly; The two tilting arms correspond to the first conveyor belt and the second conveyor belt respectively, and the interior of the two tilting arms is provided with a hollow structure for receiving and accommodating tobacco leaves. The pressing component is movably inserted into the tilting arm. When the tilting arm rotates upward, the pressing component abuts against the limiting block, generating a force to drive the pressing component to move downward until it presses against the tobacco leaf.

2. The tobacco leaf mold detection device according to claim 1, characterized in that, The transmission mechanism, the flipping mechanism, and the detection mechanism are all mounted on the frame. A first motor is mounted at one end of the frame, and a second motor is mounted on the side of the frame closest to the flipping mechanism. The power end of the first motor is connected to the first conveyor belt or the second conveyor belt, and the first conveyor belt and the second conveyor belt are connected by a synchronization mechanism. The power end of the second motor is connected to the tilting shaft seat.

3. The tobacco leaf mold detection device according to claim 1, characterized in that, The flipping shaft seat includes a bearing seat mounted on the frame, a rotating shaft fitted in the bearing seat, and a flipping roller fixedly connected to the rotating shaft; The rotating shaft is connected to the power end of the second motor; The two sides of the flipping roller are respectively connected to two flipping arms.

4. The tobacco leaf mold detection device according to claim 1, characterized in that, The hollow structure is U-shaped; Both of the two flipping arms are provided with elastic connectors on the inner wall near the pressing assembly; The two tilting arms are also equipped with proximity sensors.

5. The tobacco leaf mold detection device according to claim 1, characterized in that, The clamping assembly includes a guide opening on the tilting wall, a movable plate inserted into the guide opening, a connecting rod connected to one end of the movable plate, a pressure plate connected to the other end of the movable plate, and an elastic clamping member on one side of the pressure plate.

6. The tobacco leaf mold detection device according to claim 5, characterized in that, The elastic clamping component includes a plurality of second springs connected to the pressure plate, a corrugated sleeve fitted over the second springs, and a washer connected to the bottom of the second springs. The connecting rod is fitted with pulleys at both ends, and the pulleys are used to slide in contact with the limiting block.

7. The tobacco leaf mold detection device according to claim 2, characterized in that, The detection mechanism includes a first detection unit and a second detection unit respectively installed on the frame and located above the first conveyor belt and the second conveyor belt; Both the first detection unit and the second detection unit include a detection bracket mounted on a frame, a camera device connected to the detection bracket, and supplementary lighting equipment connected to the detection bracket and arranged around the camera device.

8. The tobacco leaf mold detection device according to claim 2, characterized in that, The detection device also includes a leak-proof component, which includes a first leak-proof seat and a second leak-proof seat mounted on the frame and respectively attached to the ends of the first conveyor belt and the second conveyor belt.

9. The tobacco leaf mold detection device according to claim 8, characterized in that, The first and second leak-proof seats are arc-shaped, with their arc centers coinciding with the axis of rotation. Furthermore, the distance from the surface of the first and second leak-proof seats to the axis of rotation is greater than the distance from the edge of the flip arm to the axis of rotation.

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