Special elevator for tobacco leaves in tobacco curing house
By using a servo motor to drive the lifting screw and a drive motor to rotate the placement frame, the problems of low tobacco leaf volume and low emission efficiency in existing tobacco leaf lifts are solved, achieving efficient and continuous emission of multi-layer tobacco leaves and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN TOBACCO CORP QUJING BRANCH
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-29
AI Technical Summary
Existing tobacco leaf elevators can only transport a small amount of tobacco leaves at a time, resulting in low emission efficiency. Furthermore, they can only discharge tobacco leaves at one layer height, leading to low tobacco leaf processing efficiency.
It adopts a servo motor to drive the lifting screw and drive the motor to rotate the placement frame. Combined with the cross-shaped placement frame and slide bar design, it realizes the height adjustment of the tobacco leaf support rod and continuous discharge. It is equipped with self-locking wheels and push handle for easy movement, and storage drawers are used to centrally store tools.
It enables efficient and continuous emission of multi-layer tobacco leaves, reduces manual labor intensity, improves work efficiency, and is suitable for large-scale processing of multi-layer tobacco leaf racks.
Smart Images

Figure CN224291251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco production technology, specifically a special tobacco leaf lifting machine for use in tobacco curing barns. Background Technology
[0002] The tobacco curing barns in the tobacco industry generally adopt a three-layer structure design. The tobacco stalks, which are filled with fresh tobacco leaves, are sent into the curing barn one by one to be placed on the rack for initial curing. After the initial curing is completed, the tobacco stalks are taken out one by one. The whole process requires the cooperation of many people to complete. In particular, the tobacco racks on the second layer are more than two meters high, making it inconvenient to pick up and put down. Therefore, a tobacco leaf lifting machine is required.
[0003] According to the patent number CN 221864619 U, a special tobacco leaf lifting machine for flue-curing barns is disclosed. This device is equipped with a liftable T-shaped lifting rod, which can drive two tobacco leaf support rods on the T-shaped lifting rod to rise and fall, thereby transporting tobacco leaves to different heights and facilitating the discharge of multiple layers of tobacco leaves. However, the existing device can transport a small amount of tobacco leaves at one time, and can only discharge tobacco leaves of one layer height at a time during the discharge process, resulting in low tobacco leaf discharge efficiency. Therefore, we propose a special tobacco leaf lifting machine for flue-curing barns. Utility Model Content
[0004] The purpose of this utility model is to provide a special tobacco leaf lifting machine for tobacco curing barns to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a special tobacco leaf lifting machine for tobacco curing barns, comprising a base, with a first upright and a second upright symmetrically fixed at both ends of the top of the base, and a tobacco leaf temporary storage mechanism that can be lifted and rotated between the first upright and the second upright. The tobacco leaf temporary storage mechanism includes a placement frame and a tobacco leaf support rod. There are two placement frames, and both placement frames are in a cross shape. The corresponding ends of the two placement frames are rotatably connected to the tobacco leaf support rod through bearings.
[0006] Preferably, both the first and second uprights are provided with lifting slots, and lifting seats are slidably connected in the lifting slots. The central shafts of the two placement frames are rotatably connected to the two lifting seats through bearings. A lifting screw is rotatably connected in the lifting slot of the second upright through bearings. A vertical threaded hole is provided at the top of the lifting seat in the second upright. The lifting screw is threaded into the threaded hole of the lifting seat. A servo motor is fixedly installed at the top of the second upright, and the output shaft end of the servo motor extends into the lifting slot and is fixedly connected to the lifting screw.
[0007] Preferably, a sliding rod is fixedly connected in the lifting groove of the first upright, and a vertical sliding hole is opened at the top of the lifting seat in the first upright, and the sliding rod is slidably connected in the sliding hole of the lifting seat.
[0008] Preferably, self-locking wheels are installed at all four corners of the bottom of the base.
[0009] Preferably, a drive motor is fixedly installed on the side wall of the lifting seat inside the second upright, and the output shaft end of the drive motor passes through the lifting seat and is fixedly connected to the central shaft of the placement frame.
[0010] Preferably, each of the corresponding side walls of the first and second uprights is provided with a push handle, and the outside of the push handle is covered with a rubber sleeve.
[0011] Preferably, the outer side of the tobacco leaf support rod is provided with annular grooves for positioning the tobacco leaf binding rope.
[0012] Preferably, the base has storage drawers symmetrically arranged on its side walls.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model uses a servo motor to drive the lifting screw, which precisely adjusts the height of the cross-shaped placement rack, so that the tobacco leaf support rods (with ring groove positioning ropes) of different levels match the layers of the tobacco leaf rack, realizing continuous placement from the top to the bottom. The sliding cooperation between the slide rod and the lifting seat ensures the stability of lifting and significantly reduces the labor intensity of manual climbing and handling.
[0015] 2. The drive motor of this utility model can rotate the support rods that are fully loaded with tobacco leaves at the bottom to the top, while the empty rods at the bottom can continue to be loaded with new tobacco leaves, forming a "loading-lifting-discharging-rotating" cycle process, avoiding interruption, improving work efficiency, and is especially suitable for large-scale processing of multi-layer tobacco leaf racks.
[0016] 3. The base of this utility model is equipped with self-locking wheels and a push handle (with anti-slip rubber sleeve design), which facilitates the movement and positioning of the equipment in the curing barn; the storage drawer centrally stores tools such as binding ropes, reducing the time spent retrieving materials. The overall structure combines functionality and ergonomics, making it suitable for intensive tobacco processing scenarios. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the tobacco leaf temporary storage mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the tobacco leaf support structure of this utility model.
[0020] In the diagram: 1. Base; 2. First upright; 3. Second upright; 4. Lifting groove; 5. Lifting seat; 6. Placement rack; 7. Tobacco leaf support rod; 8. Lifting screw; 9. Slide rod; 10. Servo motor; 11. Drive motor; 12. Push handle; 13. Storage drawer; 14. Self-locking wheel; 15. Annular groove; 16. Tobacco leaf temporary storage mechanism. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a special tobacco leaf lifting machine for tobacco curing barns, including a base 1, with a first upright 2 and a second upright 3 symmetrically fixed at both ends of the top of the base 1, and a tobacco leaf temporary storage mechanism 16 that can be lifted and rotated is provided between the first upright 2 and the second upright 3. The tobacco leaf temporary storage mechanism 16 includes a placement frame 6 and a tobacco leaf support rod 7. There are two placement frames 6, and both placement frames 6 are cross-shaped structures. The corresponding ends of the two placement frames 6 are rotatably connected to the tobacco leaf support rod 7 through bearings.
[0023] Please see Figure 1 The first frame 2 and the second frame 3 are both provided with lifting grooves 4, and lifting seats 5 are slidably connected in the lifting grooves 4. The central shafts of the two placement frames 6 are rotatably connected to the two lifting seats 5 through bearings. The lifting groove 4 of the second frame 3 is rotatably connected to the lifting screw 8 through the bearing. The top of the lifting seat 5 in the second frame 3 is provided with a vertical threaded hole, and the lifting screw 8 is threaded into the threaded hole of the lifting seat 5. The top of the second frame 3 is fixedly installed with a servo motor 10, and the end of the output shaft of the servo motor 10 extends into the lifting groove 4 and is fixedly connected to the lifting screw 8.
[0024] It should be noted that when using this utility model, the tobacco leaves to be discharged are placed on the four tobacco leaf support rods 7, and the device is pushed to the tobacco leaf rack to be discharged. Since the tobacco leaf rack has multiple layers, the height of the tobacco leaf storage mechanism 16 can be adjusted according to the height of the highest discharge layer when discharging the tobacco leaves. The controller set in the device controls the servo motor 10 to work and make the lifting screw 8 rotate. The height of the tobacco leaf storage mechanism 16 can be adjusted through the threaded connection between the lifting seat 5 and the lifting screw 8, so that the tobacco leaf support rod 7 at the top of the placement rack 6 is adapted to the tobacco leaves on the upper layer. The tobacco leaves on the top tobacco support rod 7 of the placement rack 6 can be placed on the top layer of the tobacco rack, and the tobacco support rod 7 in the middle of the placement rack 6 can be placed on the lower layer of the tobacco rack. After the leaves are placed, the controller of the device controls the drive motor 11 to drive the two placement racks 6 to rotate, so that the tobacco support rod 7 at the bottom rotates to the top position, which is convenient for continuing to place the tobacco leaves at the top. The tobacco support rod 7 at the bottom can continue to store tobacco leaves, which is used to transport the tobacco leaves to the height when the placement rack 6 rotates, so as to facilitate the continuous placement of tobacco leaves onto the tobacco rack.
[0025] Please see Figure 1 A sliding rod 9 is fixedly connected in the lifting groove 4 of the first upright frame 2. A vertical sliding hole is opened on the top of the lifting seat 5 inside the first upright frame 2, and the sliding rod 9 is slidably connected in the sliding hole of the lifting seat 5.
[0026] It should be noted that the sliding bar 9 is designed to ensure the stable lifting and lowering of the placement rack 6.
[0027] Please see Figure 1 The base 1 has self-locking wheels 14 installed at each of the four bottom corners.
[0028] It should be noted that the self-locking wheel 14 enables the movement of the device.
[0029] Please see Figure 1 A drive motor 11 is fixedly installed on the side wall of the lifting seat 5 inside the second upright 3, and the output shaft end of the drive motor 11 passes through the lifting seat 5 and is fixedly connected to the central shaft of the placement frame 6.
[0030] It should be noted that the controller set in the device can control the operation of the drive motor 11, which can drive the placement rack 6 to rotate, thereby driving the tobacco leaf support rod 7 on it to rotate, and the height position of the tobacco leaf support rod 7 at the end of the placement rack 6 can be adjusted.
[0031] Please see Figure 1 The first upright 2 and the second upright 3 are provided with push handles 12 on their corresponding side walls, and the push handles 12 are covered with rubber sleeves on their outer sides.
[0032] It should be noted that the push handle 12 is designed to move the device, and the rubber sleeve increases the friction between the push handle 12 and the hand, making it easier for the user to hold the device stably.
[0033] Please see Figure 3 The outer side of the tobacco leaf support rod 7 is provided with annular grooves 15 for positioning the tobacco leaf binding rope.
[0034] It should be noted that the annular groove 15 on the tobacco leaf support rod 7 helps to stabilize the position of the tobacco leaves and prevent them from sliding and piling up.
[0035] Please see Figure 1 Storage drawers 13 are symmetrically arranged on the side wall of the base 1.
[0036] It should be noted that the storage drawer 13 can centrally store tools such as ropes, reducing the time spent retrieving materials. The overall structure combines functionality and ergonomics, making it suitable for intensive tobacco processing scenarios.
[0037] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying anything.
[0038] The relative importance or implicit indication of the number of indicated technical features, thereby, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one of those features.
[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A special tobacco leaf lifting machine for use in tobacco curing barns, characterized in that, The base (1) includes a base, and a first stand (2) and a second stand (3) are symmetrically fixed at both ends of the top of the base (1). A tobacco leaf temporary storage mechanism (16) that can be raised, lowered and rotated is provided between the first stand (2) and the second stand (3). The tobacco leaf temporary storage mechanism (16) includes a placement frame (6) and a tobacco leaf support rod (7). There are two placement frames (6), and both placement frames (6) are cross-shaped. The tobacco leaf support rod (7) is rotatably connected between the corresponding ends of the two placement frames (6) through bearings.
2. The special tobacco leaf lifting machine for a tobacco curing barn according to claim 1, characterized in that: The first stand (2) and the second stand (3) are both provided with lifting grooves (4), and lifting seats (5) are slidably connected in the lifting grooves (4). The central shafts of the two placement frames (6) are rotatably connected to the two lifting seats (5) through bearings. The lifting groove (4) of the second stand (3) is rotatably connected to the lifting screw (8) through bearings. The top of the lifting seat (5) in the second stand (3) is provided with a vertical threaded hole. The lifting screw (8) is threadedly connected in the threaded hole of the lifting seat (5). The top of the second stand (3) is fixedly installed with a servo motor (10), and the output shaft end of the servo motor (10) extends into the lifting groove (4) and is fixedly connected to the lifting screw (8).
3. The special tobacco leaf lifting machine for a tobacco curing barn according to claim 2, characterized in that: A sliding rod (9) is fixedly connected in the lifting groove (4) of the first upright frame (2). A vertical sliding hole is opened on the top of the lifting seat (5) in the first upright frame (2). The sliding rod (9) is slidably connected in the sliding hole of the lifting seat (5).
4. A special tobacco leaf lifting machine for a tobacco curing barn according to claim 1, characterized in that: The base (1) is equipped with self-locking wheels (14) at the four corners of its bottom.
5. A special tobacco leaf lifting machine for a tobacco curing barn according to claim 1, characterized in that: A drive motor (11) is fixedly installed on the side wall of the lifting seat (5) inside the second upright frame (3), and the output shaft end of the drive motor (11) passes through the lifting seat (5) and is fixedly connected to the central shaft of the placement frame (6).
6. A special tobacco leaf lifting machine for a tobacco curing barn according to claim 1, characterized in that: The first upright (2) and the second upright (3) are provided with push handles (12) on their corresponding side walls, and the push handles (12) are fitted with rubber sleeves on their outer sides.
7. A special tobacco leaf lifting machine for a tobacco curing barn according to claim 1, characterized in that: The outer side of the tobacco leaf support rod (7) is provided with annular grooves (15) for positioning the tobacco leaf binding rope.
8. A special tobacco leaf lifting machine for a tobacco curing barn according to claim 1, characterized in that: Storage drawers (13) are symmetrically arranged on the side walls of the base (1).