A rotary type tobacco drying rack

Abstract

The application discloses a rotary type tobacco drying rack and belongs to the tobacco leaf drying technical field. The rotary type tobacco drying rack comprises a main frame and further comprises a horizontal conveying mechanism, a lifting mechanism and a clamping mechanism. Two horizontal conveying mechanisms are respectively arranged on the upper and lower sides of the main frame and are used for conveying the clamping mechanism one by one and moving horizontally. The lifting mechanism is arranged on the front and rear sides of the main frame and is used for lifting the clamping mechanism and moving upward, so that the clamping mechanism moves from the horizontal conveying mechanism on the lower side to the horizontal conveying mechanism on the upper side. The clamping mechanism is arranged on the horizontal conveying mechanism and is used for clamping tobacco leaves and drying. The horizontal conveying mechanism comprises a lower conveying mechanism and a middle conveying mechanism. The lower conveying mechanism is arranged on the main frame. Through the above mode, the application can realize multi-layer stacking, drying and storage, can realize the unified and rapid circulation of the clamping mechanism, can adjust the deflection angles of all the clamping mechanisms synchronously and can realize the overall consistency of drying.

Description

Technical Field

[0001] This invention relates to the field of tobacco leaf drying technology, specifically a rotary tobacco drying rack. Background Technology

[0002] In the initial processing of tobacco leaves, natural sun-drying is a crucial step in ensuring the aroma and quality of the leaves. The drying rack, as the core equipment for holding the tobacco leaves, directly determines the utilization rate of the drying area, the uniformity of drying, and the efficiency of loading and unloading operations. Traditional fixed drying sheds and simple hanging racks can only lay tobacco leaves flat in a single layer, failing to fully utilize vertical space, resulting in a large footprint, a limited total amount of tobacco leaves to be dried at a time, and high investment costs for large-scale tobacco processing facilities.

[0003] Chinese patent CN217743116U discloses an automatic lifting device for conveniently collecting cigar tobacco leaves for drying. The device includes four vertical frames and multiple triangular frames. A control motor is fixedly installed at the upper part of each of the four vertical frames, and a rotating gear is fixedly installed at the output end of each of the four control motors. An auxiliary gear is rotatably connected at the lower middle part of each of the four vertical frames. Two chains mesh between each of the four rotating gears and the four auxiliary gears. Multiple rotating shafts are fixedly installed on one side of each of the two chains. Bearings are fixedly fitted onto the top of each of the multiple triangular frames. A baffle is fixedly installed at the lower end of each of the multiple triangular frames. A slot is formed on the inner side of the upper end of each of the multiple baffles, and a tobacco leaf holder is engaged between each pair of slots.

[0004] However, the technical solution of this patent has the following problems: This patent relies on a single set of vertical chains to hang tobacco leaf racks. The tobacco leaf racks can only be stacked along a single vertical track, which cannot fully release the vertical space of the equipment and results in low space utilization. This patent relies on the slot to limit the tobacco leaf frame. The tobacco leaf frame lacks a stable constraint structure during the chain lifting and lateral movement, and is very easy to twist or tilt due to wind and other factors. The tilt angle of the tobacco leaves cannot be adjusted uniformly and synchronously, some tobacco leaves are blocked, ventilation and lighting are uneven, the degree of drying of the same batch of tobacco leaves varies greatly, the quality of finished products is inconsistent, the angle of each set of tobacco leaf racks needs to be adjusted manually, which is time-consuming and labor-intensive. It is difficult to uniformly change the light-receiving surface of the tobacco leaves according to the light intensity, ambient temperature and humidity, and the adaptability to different drying conditions such as cloudy days and strong light is poor.

[0005] Based on this, the present invention designs a rotary tobacco drying rack to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a rotary tobacco drying rack.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A rotary tobacco drying rack includes a main frame, and further includes: a transverse conveying mechanism, a lifting mechanism, and a clamping mechanism. Two transverse conveying mechanisms are respectively installed on the upper and lower sides of the main frame for conveying the clamping mechanisms one by one to move laterally. Lifting mechanisms are installed on both the front and rear sides of the main frame for lifting the clamping mechanisms to move upward, so that the clamping mechanisms move from the lower transverse conveying mechanism to the upper transverse conveying mechanism. Multiple clamping mechanisms are installed on the transverse conveying mechanisms for clamping tobacco leaves for drying. The transverse conveying mechanism includes a lower conveying mechanism and a middle conveying mechanism. The lower conveying mechanism is installed on the main frame, and the middle conveying mechanism is installed on the middle side of the main frame. The middle conveying mechanisms of the two transverse conveying mechanisms are close to each other, and the clamping mechanism can move between the two middle conveying mechanisms.

[0008] Furthermore, the lower conveying mechanism includes: a first drive motor, a first sprocket, and a first chain. Two first drive motors are fixedly installed on the left and right sides of the main frame. First sprockets are distributed on both the first drive motor and the main frame. The two first sprockets are rotatably connected to the left and right sides of the main frame through a rotating shaft. A first sprocket is fixedly installed on the output shaft of the first drive motor. The first sprockets on the main frame and the first sprockets on the output shaft of the first drive motor correspond one-to-one. The first chain drive is connected between the first sprockets on the main frame and the first sprockets on the output shaft of the first drive motor.

[0009] Furthermore, the middle conveying mechanism includes: a rectangular frame, a second drive motor, a second sprocket, and a second chain. The two rectangular frames are symmetrically fixedly installed on the left and right sides of the main frame. The second drive motor is fixedly installed at one corner of the rectangular frame. Second sprockets are distributed on both the rectangular frame and the second drive motor. The remaining three corners of the rectangular frame are rotatably connected to second sprockets via rotating shafts. A second chain is distributed on the side wall of each rectangular frame. The second chain is drivenly connected to the second sprockets at the remaining three corners of the rectangular frame and the second sprocket on the output shaft of the second drive motor.

[0010] Furthermore, a limiting frame is fixedly installed on the front side of the rectangular frame, and a strip-shaped slot is opened in the limiting frame. The front side of the strip-shaped slot is flared to facilitate the clamping mechanism to slide into the strip-shaped slot.

[0011] Furthermore, the lifting mechanism includes: a vertical frame, a third drive motor, a third sprocket, and a third chain. The vertical frame is fixedly installed on the main frame, the third drive motor is fixedly installed on the vertical frame, and two third sprockets are rotatably connected to the left and right sides of the vertical frame through a rotating shaft. A third chain is connected between the two third sprockets on the same side. The output shaft of the third drive motor is fixedly connected to two of the third sprockets.

[0012] Furthermore, the lifting mechanism also includes a limiting component. Two limiting components are respectively installed on the left and right sides of the main frame to limit the clamping mechanism and prevent the clamping mechanism from rotating during lifting.

[0013] Furthermore, the limiting component includes: a slider, a magnet, and a limiting plate. The slider is slidably connected to the main frame, the magnet is fixedly installed on the slider, and limiting plates are fixedly installed on the upper and lower sides of the rectangular frame and on the main frame.

[0014] Furthermore, the clamping mechanism includes a deflection moving component and a mesh clamping component, wherein the deflection moving component is mounted on the first chain and the mesh clamping component is mounted on the deflection moving component.

[0015] Furthermore, the deflection and movement assembly includes: a crossbar, a translation sprocket, and a lifting sprocket. The crossbar is located within the main frame and has a square cross-section. The crossbar is made of iron, cobalt, nickel, or their alloys that can be attracted by a magnet. Two translation sprockets are fixedly installed on the left and right sides of the crossbar, and two lifting sprockets are fixedly installed on the middle side of the crossbar. The translation sprocket is engaged between the first chain and the second chain.

[0016] Furthermore, the mesh clamping assembly includes: a fixed mesh panel and a deflecting mesh panel. The fixed mesh panel is fixedly installed on the crossbar, one side of the deflecting mesh panel is rotatably connected to one side of the fixed mesh panel, and the other side of the deflecting mesh panel is snapped onto the other side of the fixed mesh panel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention, through the upper and lower two-layer horizontal conveying mechanisms and the transition area between the two layers of horizontal conveying mechanisms, combined with the front and rear lifting mechanisms, can store a large number of clamping mechanisms with tobacco leaves in multiple layers, making full use of vertical space and greatly increasing the storage capacity for drying tobacco leaves; at the same time, it can automatically complete the cycle of drying material drying process, from loading material from the lower horizontal conveying mechanism to storing material, and then directly conveying material from the upper horizontal conveying mechanism to unloading material. The operation is simple and the loading and unloading efficiency is high; through the cooperation of the slider, magnet and limiting plate of the limiting component, constraint is achieved during the movement and lifting of the clamping mechanism, preventing the clamping mechanism from rotating or tilting, ensuring stable posture, and facilitating subsequent uniform adjustment of the deflection angle for drying. 2. By moving two chains in opposite directions, all clamping mechanisms are simultaneously deflected at a preset angle, allowing the tobacco leaves to receive light and ventilation more evenly, adapting to different drying conditions, and improving the drying effect and overall consistency. The temperature and humidity of the upper, middle and lower three layers of the equipment are different, so tobacco leaves can be placed in separate areas to meet the differentiated drying process requirements of different varieties and different drying stages of tobacco leaves. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 for Figure 3 Enlarged view of A in the middle; Figure 5 This is a schematic diagram of the structure of the present invention equipped with multiple clamping mechanisms; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 7 This is a partial structural schematic diagram of the transverse conveying mechanism and clamping mechanism of the present invention; Figure 8 This is a partial structural schematic diagram of the clamping mechanism of the present invention; Figure 9 This is a partial structural schematic diagram of the transverse conveying mechanism of the present invention; Figure 10 This is a partial structural schematic diagram of the transverse conveying mechanism and the lifting mechanism of the present invention; Figure 11 for Figure 10 Enlarged view of B in the middle; Figure 12 This is a partial structural diagram of the clamping mechanism of the present invention located at the lower limit plate position of the rectangular frame; Figure 13 This is a partial structural diagram of the clamping mechanism of the present invention located at the slider position; Figure 14 This is a partial structural diagram of the clamping mechanism of the present invention located at the upper limit plate position of the rectangular frame.

[0020] The labels in the diagram represent: 1. Main frame; 2. Lateral conveying mechanism; 21. First drive motor; 22. First sprocket; 23. First chain; 24. Rectangular frame; 25. Second drive motor; 26. Second sprocket; 27. Second chain; 28. Limiting frame; 29. ​​Slotted section; 3. Lifting mechanism; 31. Vertical frame; 32. Third drive motor; 33. Third sprocket; 34. Third chain; 35. Slider; 36. Magnet; 37. Limiting plate; 4. Clamping mechanism; 41. Crossbar; 42. Translation sprocket; 43. Lifting sprocket; 44. Fixed mesh; 45. Deflecting mesh. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0024] Example 1: In some examples, please refer to Figures 1-14 A rotary tobacco drying rack includes a main frame 1, and further includes a transverse conveying mechanism 2, a lifting mechanism 3, and a clamping mechanism 4. Two transverse conveying mechanisms 2 are respectively installed on the upper and lower sides of the main frame 1 for conveying the clamping mechanisms 4 one by one for transverse movement. Lifting mechanisms 3 are installed on both the front and rear sides of the main frame 1 for lifting the clamping mechanisms 4 upwards, so that the clamping mechanisms 4 move from the lower transverse conveying mechanism 2 to the upper transverse conveying mechanism 2. Multiple clamping mechanisms 4 are installed on the transverse conveying mechanisms 2 for clamping tobacco leaves for drying.

[0025] The transverse conveying mechanism 2 includes a lower conveying mechanism and a middle conveying mechanism. The lower conveying mechanism is installed on the main frame 1, and the middle conveying mechanism is installed on the middle side of the main frame 1. The middle conveying mechanisms of the two transverse conveying mechanisms 2 are close to each other, and the clamping mechanism 4 can move between the two middle conveying mechanisms.

[0026] The lower conveying mechanism includes a first drive motor 21, a first sprocket 22, and a first chain 23. Two first drive motors 21 are fixedly installed on the left and right sides of the main frame 1. First sprockets 22 are distributed on both the first drive motors 21 and the main frame 1. Two first sprockets 22 are rotatably connected to the left and right sides of the main frame 1 through a rotating shaft. The first sprockets 22 are fixedly installed on the output shaft of the first drive motor 21. The first sprockets 22 on the main frame 1 and the first sprockets 22 on the output shaft of the first drive motor 21 correspond one-to-one. The first chain 23 is driven between the first sprockets 22 on the main frame 1 and the first sprockets 22 on the output shaft of the first drive motor 21.

[0027] The middle conveying mechanism includes: a rectangular frame 24, a second drive motor 25, a second sprocket 26, and a second chain 27. The two rectangular frames 24 are symmetrically fixed on the left and right sides of the main frame 1. The second drive motor 25 is fixedly installed at one corner of the rectangular frame 24. The second sprocket 26 is distributed on both the rectangular frame 24 and the second drive motor 25. The remaining three corners of the rectangular frame 24 are rotatably connected to the second sprocket 26 through a rotating shaft. A second chain 27 is distributed on the side wall of each rectangular frame 24. The second chain 27 is drivenly connected to the second sprocket 26 at the remaining three corners of the rectangular frame 24 and the second sprocket 26 on the output shaft of the second drive motor 25.

[0028] A limiting frame 28 is fixedly installed on the front side of the rectangular frame 24. A strip slot 29 is provided in the limiting frame 28. The front side of the strip slot 29 is flared to facilitate the clamping mechanism 4 to slide into the strip slot 29.

[0029] When the tobacco leaves are to be dried, they are placed on the clamping mechanism 4 and clamped. The clamping mechanism 4 is then slid into the transverse conveying mechanism 2 through the strip slot 29. The output shaft of the first drive motor 21 of the lower conveying mechanism of the transverse conveying mechanism 2 rotates, driving the first sprocket 22 to rotate. The rotation of the first sprocket 22 drives the first chain 23 to move. The output shaft of the second drive motor 25 of the middle conveying mechanism rotates, driving the second sprocket 26 to rotate. The rotation of the second sprocket 26 drives the second chain 27 to move. The first chain 23 and the second chain 27 move in the same direction, driving the clamping mechanism 4 to move.

[0030] Each clamping mechanism 4 is placed one at a preset distance.

[0031] Example 2: In some embodiments, such as Figures 1-14As shown, in a preferred embodiment of the present invention, the lifting mechanism 3 includes: a vertical frame 31, a third drive motor 32, a third sprocket 33, and a third chain 34. The vertical frame 31 is fixedly installed on the main frame 1, and the third drive motor 32 is fixedly installed on the vertical frame 31. Two third sprockets 33 are rotatably connected to the left and right sides of the vertical frame 31 through a rotating shaft. A third chain 34 is connected between the two third sprockets 33 on the same side. The output shaft of the third drive motor 32 is fixedly connected to two of the third sprockets 33.

[0032] The lifting mechanism 3 further includes a limiting component. Two limiting components are respectively installed on the left and right sides of the main frame 1 to limit the clamping mechanism 4 and prevent the clamping mechanism 4 from rotating during lifting.

[0033] Example 3: In some embodiments, such as Figures 1-14 As shown, in a preferred embodiment of the present invention, the limiting component includes: a slider 35, a magnet 36 and a limiting plate 37. The slider 35 is slidably connected to the main frame 1, the magnet 36 is fixedly installed on the slider 35, and the limiting plate 37 is fixedly installed on the upper and lower sides of the rectangular frame 24 and on the main frame 1.

[0034] The clamping mechanism 4 includes a deflection moving component and a net clamping component. The deflection moving component is mounted on the first chain 23, and the net clamping component is mounted on the deflection moving component.

[0035] The deflection and movement assembly includes a crossbar 41, translation sprockets 42, and lifting sprockets 43. The crossbar 41 is located inside the main frame 1. The crossbar 41 has a square cross-section and is made of iron, cobalt, nickel, or their alloys that can be attracted by a magnet 36. Two translation sprockets 42 are fixedly installed on the left and right sides of the crossbar 41, and two lifting sprockets 43 are fixedly installed on the middle side of the crossbar 41. The translation sprockets 42 are engaged between the first chain 23 and the second chain 27.

[0036] The mesh clamping assembly includes a fixed mesh 44 and a deflecting mesh 45. The fixed mesh 44 is fixedly installed on the crossbar 41. One side of the deflecting mesh 45 is rotatably connected to one side of the fixed mesh 44, and the other side of the deflecting mesh 45 is snapped onto the other side of the fixed mesh 44.

[0037] Open the deflection screen 45, place the tobacco leaf on the fixed screen 44 of the clamping mechanism 4, close the deflection screen 45 and snap it onto the fixed screen 44, and the tobacco leaf is fixed.

[0038] The fixed mesh piece 44 of the clamping mechanism 4 is moved to a vertical position. Then, the translation sprocket 42 is pushed between the first chain 23 and the second chain 27, so that it is engaged between the first chain 23 and the second chain 27. The output shaft of the first drive motor 21 rotates, driving the first sprocket 22 to rotate. The rotation of the first sprocket 22 drives the first chain 23 to move. The output shaft of the second drive motor 25 rotates, driving the second sprocket 26 to rotate. The rotation of the second sprocket 26 drives the second chain 27 to move. The first chain 23 and the second chain 27 move synchronously in the same direction, driving the translation sprocket 42 to move backward. Multiple clamping mechanisms 4 are installed one by one in this way. At this time, the clamping mechanism 4 moves backward without deflection.

[0039] When the first installed clamping mechanism 4 moves to the position of the limiting plate 37, the lower side of the translation sprocket 42 of the deflection moving component of the clamping mechanism 4 is limited by the first chain 23, the upper side of the translation sprocket 42 moves away from the second chain 27, and the upper side of the clamping mechanism 4 is limited by the crossbar 41 and the limiting plate 37 in close contact, so as to prevent the crossbar 41 of the deflection moving component of the clamping mechanism 4 from deflecting when it continues to move backward.

[0040] The clamping mechanism 4 continues to move backward, and the crossbar 41 moves to directly below the magnet 36 and is attracted by the magnet 36. At this time, the lower side of the clamping mechanism 4 is still limited by the translation sprocket 42 and the first chain 23, while the upper side of the clamping mechanism 4 is limited by the slider 35 and the magnet 36 to keep the clamping mechanism 4 from deflecting. At this time, the rear side of the lifting sprocket 43 is engaged with the third chain 34 of the lifting mechanism 3.

[0041] The output shaft of the third drive motor 32 of the lifting mechanism 3 rotates, driving the third sprocket 33 to rotate. The rotation of the third sprocket 33 drives the third chain 34 to move. The movement of the third chain 34 drives the lifting sprocket 43 to move upward. The upward movement of the lifting sprocket 43 drives the crossbar 41, the translation sprocket 42, the fixed mesh 44, and the deflection mesh 45 to move upward. The crossbar 41 moves to the position of the limiting plate 37 on the upper side of the rectangular frame 24. At this time, the upper side of the translation sprocket 42 is engaged with the second chain 27 of the middle conveying mechanism of the transverse conveying mechanism 2 on the upper side of the main frame 1.

[0042] The second chain 27 of the middle conveying mechanism of the transverse conveying mechanism 2 on the upper side of the main frame 1 moves, driving the translation sprocket 42 to move. The translation sprocket 42 moves, driving the crossbar 41 to move. The crossbar 41 moves between the limiting plate 37 of the main frame 1 and the limiting plate 37 of the rectangular frame 24. At this time, the crossbar 41 moves out of the adsorption range of the magnet 36. The slider 35 and the magnet 36 return to their initial state by gravity. The upper and lower sides of the crossbar 41 are limited by the limiting plate 37 of the main frame 1 and the limiting plate 37 of the rectangular frame 24, so that the crossbar 41 does not rotate when it moves between the two second chains 27 after being lifted and moved. At this time, the translation sprocket 42 is engaged between the two second chains 27. The clamping mechanism 4 moves from the transverse conveying mechanism 2 on the lower side of the main frame 1 to the middle side of the main frame 1, located between the two second chains 27 of the middle conveying mechanism of the two transverse conveying mechanisms 2.

[0043] The two second chains 27 continue to move, driving the clamping mechanism 4 forward to the position of the lifting mechanism 3 on the front side of the main frame 1. The lifting mechanism 3 lifts the mechanism to the position of the horizontal conveying mechanism 2 on the upper side of the main frame 1. In this way, multiple clamping mechanisms 4 are stored on the two horizontal conveying mechanisms 2 and between the two horizontal conveying mechanisms 2, thereby improving the space utilization rate for drying.

[0044] In addition, the temperature and humidity of the drying are different for the uppermost clamping mechanism 4, the middle clamping mechanism 4 and the lower clamping mechanism 4, so that they can be adapted to different drying needs. The clamping mechanism 4 is only installed on the two transverse conveying mechanisms 2 and between the middle conveying mechanism of the two transverse conveying mechanisms 2.

[0045] When the clamping mechanism 4, which is currently drying, is to be deflected at a preset angle to improve the drying effect, the output shafts of all first drive motors 21 and all second drive motors 25 rotate in the same direction. This causes the positions of the first chain 23 and the second chain 27 that are close to each other to move towards each other, driving the translation sprocket 42 to rotate at a preset angle. This causes the clamping mechanisms 4 between the first chain 23 and the second chain 27 to be deflected at the preset angle synchronously for drying. At the same time, the positions of the two second chains 27 that are close to each other move towards each other, causing the clamping mechanisms 4 between the two second chains 27 to be deflected at the preset angle synchronously for drying. This achieves the goal of all clamping mechanisms 4 being deflected at the preset angle synchronously for drying.

[0046] When the drying is complete, when unloading the clamping mechanism 4, all the fixed mesh 44 of the clamping mechanism 4 are adjusted to be tilted to a vertical position. The clamping mechanism 4 is then moved according to the loading steps, so that all the clamping mechanisms 4 are transported away from the horizontal conveying mechanism 2 on the upper side of the main frame 1, thus completing the unified unloading.

[0047] Through the transition area between the upper and lower horizontal conveying mechanisms 2 and the two horizontal conveying mechanisms 2, combined with the front and rear lifting mechanisms 3, a clamping mechanism 4 can be used to store a large number of tobacco leaves in multiple layers, making full use of vertical space and greatly increasing the storage capacity for drying tobacco leaves. At the same time, it can automatically complete the cycle of drying material drying process, from loading material onto the lower horizontal conveying mechanism 2 and storing it, to directly conveying material off the upper horizontal conveying mechanism 2. The operation is simple and the loading and unloading efficiency is high.

[0048] By using the slider 35, magnet 36 and limiting plate 37 of the limiting component, constraint is achieved during the movement and lifting of the clamping mechanism 4, preventing the clamping mechanism 4 from rotating or tilting, ensuring stable posture, and facilitating subsequent uniform adjustment of the deflection angle for drying.

[0049] By moving two chains in opposite directions, all clamping mechanisms 4 are simultaneously deflected at a preset angle, allowing the tobacco leaves to receive light and ventilation more evenly, adapting to different drying conditions, and improving the drying effect and overall consistency.

[0050] The equipment has different temperatures and humidity levels in its upper, middle, and lower sections, allowing for the placement of tobacco leaves in separate areas to meet the differentiated drying process requirements of different varieties and stages of tobacco drying.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary tobacco drying rack, comprising a main frame (1), characterized in that, Also includes: The transverse conveying mechanism (2), the lifting mechanism (3) and the clamping mechanism (4) are respectively installed on the upper and lower sides of the main frame (1) for conveying the clamping mechanism (4) to move laterally one by one. The main frame (1) is equipped with lifting mechanisms (3) on both the front and rear sides for lifting the clamping mechanism (4) to move upward, so that the clamping mechanism (4) moves from the lower transverse conveying mechanism (2) to the upper transverse conveying mechanism (2). Multiple clamping mechanisms (4) are installed on the transverse conveying mechanism (2) for clamping tobacco leaves for drying. The transverse conveying mechanism (2) includes a lower conveying mechanism and a middle conveying mechanism. The lower conveying mechanism is installed on the main frame (1), and the middle conveying mechanism is installed on the middle side of the main frame (1). The middle conveying mechanisms of the two transverse conveying mechanisms (2) are close to each other, and the clamping mechanism (4) moves between the two middle conveying mechanisms.

2. The rotary tobacco drying rack according to claim 1, characterized in that, The lower conveying mechanism includes: a first drive motor (21), a first sprocket (22) and a first chain (23). Two first drive motors (21) are fixedly installed on the left and right sides of the main frame (1). First sprockets (22) are distributed on both the first drive motor (21) and the main frame (1). The two first sprockets (22) are rotatably connected to the left and right sides of the main frame (1) through a rotating shaft. The first sprockets (22) are fixedly installed on the output shaft of the first drive motor (21). The first sprockets (22) on the main frame (1) and the first sprockets (22) on the output shaft of the first drive motor (21) correspond one-to-one. The first chain (23) is driven between the first sprockets (22) on the main frame (1) and the first sprockets (22) on the output shaft of the first drive motor (21).

3. The rotary tobacco drying rack according to claim 2, characterized in that, The middle conveying mechanism includes: a rectangular frame (24), a second drive motor (25), a second sprocket (26), and a second chain (27). The two rectangular frames (24) are symmetrically fixed on the left and right sides of the main frame (1). The second drive motor (25) is fixedly installed at one corner of the rectangular frame (24). The rectangular frame (24) and the second drive motor (25) are both equipped with second sprockets (26). The remaining three corners of the rectangular frame (24) are rotatably connected to the second sprockets (26) through a rotating shaft. Each rectangular frame (24) has a second chain (27) distributed on its side wall. The second chain (27) is drivenly connected to the second sprockets (26) at the remaining three corners of the rectangular frame (24) and the second sprockets (26) on the output shaft of the second drive motor (25).

4. The rotary tobacco drying rack according to claim 3, characterized in that, A limiting frame (28) is fixedly installed on the front side of the rectangular frame (24). A strip slot (29) is provided in the limiting frame (28). The front side of the strip slot (29) is flared, which makes it convenient for the clamping mechanism (4) to slide into the strip slot (29).

5. The rotary tobacco drying rack according to claim 4, characterized in that, The lifting mechanism (3) includes: a vertical frame (31), a third drive motor (32), a third sprocket (33) and a third chain (34). The vertical frame (31) is fixedly installed on the main frame (1). The third drive motor (32) is fixedly installed on the vertical frame (31). The left and right sides of the vertical frame (31) are rotatably connected to two third sprockets (33) through a rotating shaft. The two third sprockets (33) on the same side are connected by a third chain (34). The output shaft of the third drive motor (32) is fixedly connected to two of the third sprockets (33).

6. The rotary tobacco drying rack according to claim 5, characterized in that, The lifting mechanism (3) further includes a limiting component. The two limiting components are respectively installed on the left and right sides of the main frame (1) to limit the clamping mechanism (4) and prevent the clamping mechanism (4) from rotating during lifting.

7. The rotary tobacco drying rack according to claim 6, characterized in that, The limiting component includes a slider (35), a magnet (36) and a limiting plate (37). The slider (35) is slidably connected to the main frame (1), and the magnet (36) is fixedly installed on the slider (35). The limiting plate (37) is fixedly installed on the upper and lower sides of the rectangular frame (24) and on the main frame (1).

8. The rotary tobacco drying rack according to claim 7, characterized in that, The clamping mechanism (4) includes a deflection moving component and a mesh clamping component, wherein the deflection moving component is mounted on the first chain (23) and the mesh clamping component is mounted on the deflection moving component.

9. The rotary tobacco drying rack according to claim 8, characterized in that, The deflection and movement assembly includes a crossbar (41), a translation sprocket (42), and a lifting sprocket (43). The crossbar (41) is located inside the main frame (1). The crossbar (41) has a square cross section and is made of iron, cobalt, nickel, or their alloys that can be attracted by a magnet (36). The two translation sprockets (42) are fixedly installed on the left and right sides of the crossbar (41), and the two lifting sprockets (43) are fixedly installed on the middle side of the crossbar (41). The translation sprockets (42) are engaged between the first chain (23) and the second chain (27).

10. The rotary tobacco drying rack according to claim 9, characterized in that, The mesh clamping assembly includes a fixed mesh (44) and a deflecting mesh (45). The fixed mesh (44) is fixedly installed on the crossbar (41). One side of the deflecting mesh (45) is rotatably connected to one side of the fixed mesh (44), and the other side of the deflecting mesh (45) is snapped onto the other side of the fixed mesh (44).

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