Conveying device for flue-cured tobaccos to get on and off kang in curing barn
By designing a belt conveyor and a photoelectric sensor-controlled conveying device inside the tobacco curing barn, the safety hazards and high labor costs associated with loading and unloading tobacco leaves inside the barn have been solved, and the rapid movement and intelligent control of the conveying device have been achieved.
Patent Information
- Application Number
- CN202420730994.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing tobacco curing barn operations involve high safety risks, high labor costs, and the inability of the conveyor system to move quickly.
A conveyor device including a belt conveyor and a movable support device was designed. It is equipped with photoelectric sensors and a controller to realize automatic start and stop functions. The support device is equipped with casters and telescopic rods to adapt to the needs of different tobacco curing barns.
It reduces labor costs, improves operational efficiency, reduces safety hazards, and the conveyor can move quickly to adapt to the needs of different tobacco curing barns.
Smart Images

Figure CN223865672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco curing, and in particular to a conveying device for moving tobacco up and down the curing barn. Background Technology
[0002] Tobacco is one of my country's important economic crops. For a long time, the processes of loading and unloading tobacco leaves into the drying kiln have been crucial in tobacco production. After fresh tobacco leaves are bound together with tobacco sticks or clips, they need to be placed on the kiln for drying and curing, or unloaded after being dried and regaining moisture. This process requires multiple workers to coordinate and complete the loading and unloading operations. This traditional operation has the following problems:
[0003] The tobacco hanging beams in the tobacco barn have a certain gap. When loading or unloading the second and third layers of tobacco leaves, the distance from the ground is too high. It is necessary to set up ladders or other supports with a height of about 1.5 meters, or to climb directly to the first and second layer of hanging beams to load or retrieve tobacco. This increases the number of workers required for loading and unloading tobacco, resulting in a large workload, high labor costs, and time-consuming process in the tobacco curing process. In addition, the existing curing barns are mainly horizontal and densely packed, with a large span, which is not convenient for manual operation. When workers are loading or unloading tobacco, they need to bend over a lot to pick up (place) the tobacco clips, which poses a safety hazard of easy fall. Moreover, the workers handing out tobacco at the bottom are sometimes injured on the head when the tobacco is not held firmly or the tobacco clips (sticks) are not placed properly.
[0004] There are some conveyor devices on the market that are used to assist in loading tobacco into the drying racks, but these existing conveyor devices are mostly fixed in specific tobacco drying rooms and cannot be quickly moved to other tobacco drying rooms that need to be used, which is very inconvenient.
[0005] In short, to address the high safety hazards caused by the inconvenience of loading and unloading tobacco leaves in existing tobacco curing barns and the inability of existing conveying devices to move quickly, a new type of conveying device for loading and unloading tobacco leaves in curing barns is proposed. This conveying device can facilitate the loading and unloading of tobacco leaves, reduce labor costs in tobacco production, improve work efficiency, and reduce the incidence of accidents where workers fall while loading tobacco. At the same time, it can also be moved quickly according to the needs of different tobacco curing barns, providing equipment support for tobacco farmers' safe and rapid production. Utility Model Content
[0006] In view of this, the purpose of this utility model is to provide a conveying device for loading and unloading tobacco leaves in a tobacco curing barn, which can reduce the labor cost of tobacco production, improve the efficiency of loading and unloading tobacco leaves, and can also be moved quickly according to the needs of different tobacco curing barns.
[0007] The objective of this utility model is achieved through the following technical solution:
[0008] A conveyor device for loading and unloading tobacco in a tobacco curing barn includes a belt conveyor, a movable support device at the bottom of the belt conveyor, and a detection device for controlling the start and stop of the belt conveyor on the support device. The detection device is connected to the belt conveyor through the support device.
[0009] Furthermore, the support device includes a V-shaped fixed support frame connected to one side of the belt conveyor, a long support rod at one end of the belt conveyor relative to the fixed support frame, and casters at the bottom of both the fixed support frame and the long support rod. The fixed support frame and the long support rod are symmetrically arranged on both sides of the belt conveyor.
[0010] Furthermore, the long support rod is a telescopic rod that facilitates adjustment of the lifting height.
[0011] Furthermore, the detection device includes a photoelectric sensor installed on the side of the discharge end of the belt conveyor and a controller connected thereto, the controller being connected to the belt conveyor circuit.
[0012] Furthermore, the photoelectric sensors are symmetrically arranged on the long support rods on both sides of the belt conveyor.
[0013] Furthermore, a rectangular mounting block is provided on the top side wall of the long support rod, and a circular through hole is opened on the top of the mounting block near the belt conveyor. The photoelectric sensor is installed in the circular through hole.
[0014] The beneficial effects of this utility model are:
[0015] This utility model discloses a conveyor device for loading and unloading tobacco leaves in a tobacco curing barn. It includes a belt conveyor and a support device with casters at the bottom of the conveyor, enabling the device to move. A detection device is also located at the top of a long support rod on the support device to monitor the passage of tobacco leaves (tobacco clips) on the belt conveyor. This detection device controls the motor to automatically start and stop the conveyor, making it more intelligent. This conveyor device has a simple structure, wide applicability, and can be quickly used in different tobacco curing barns. Unlike traditional fixed conveyor devices, this device only requires a worker to push it to a designated position and secure it when needed. This increases the device's practicality, eliminating the need to equip each tobacco curing barn with a suitable conveyor device, thus reducing production costs. Furthermore, the detection device makes the conveyor more intelligent, eliminating the need for frequent manual monitoring of the tobacco leaf transport on the belt conveyor and preventing leaves from falling off due to continuous belt rotation, making the device very convenient to use.
[0016] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings, wherein:
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is the front view of the present invention;
[0020] Figure 3 This is an enlarged schematic diagram of the overall structure of the mounting block and photoelectric sensor of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the present invention when the start / stop switch is used.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Belt conveyor; 2. Fixed support frame; 3. Long support rod; 4. Casters; 5. Mounting block; 6. Circular through hole; 7. Photoelectric sensor; 8. Start / stop switch. Detailed Implementation
[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.
[0025] Example 1, such as Figure 1-3 As shown, a conveyor device for loading and unloading tobacco in a tobacco curing barn includes a belt conveyor 1 with a rotating motor and a forward / reverse switch. A support device is provided at the bottom of the belt conveyor 1 to facilitate its movement. A detection device for controlling the start and stop of the belt conveyor 1 is provided on the support device. The detection device is connected to the belt conveyor 1 through the support device.
[0026] The support device includes a V-shaped fixed support frame 2 connected to one side of the belt conveyor 1. The V-shaped fixed support frame 2 makes the belt conveyor 1 more stable. A long support rod 3 is provided at one end of the belt conveyor 1 relative to the fixed support frame 2. The overall height of the long support rod 3 is higher than that of the fixed support frame 2, so that the conveyor device has a certain tilt angle. Specifically, the height difference between the feeding end and the picking end is at least 0.8 meters to adapt to existing tobacco curing barns and facilitate the loading and unloading of tobacco. Universal wheels 4 are provided at the bottom of both the fixed support frame 2 and the long support rod 3, allowing the conveyor device to be moved freely and pushed to different tobacco curing barns.
[0027] To facilitate adjustment of the lifting height of the belt conveyor 1, the long support rod 3 can be a telescopic rod. Specifically, this telescopic rod can be a commercially available electric actuator with a flat top and bottom, powered by a DC 12V / 24V or AC power supply. The thrust can be selected from 200N (20KG) to 650 N (65KG) depending on the actual situation. The fixed support frame 2 and the long support rod 3 are symmetrically arranged on both sides of the belt conveyor 1. Similarly, the fixed support frame 2 can also be equipped with a telescopic rod to better adjust the overall height of the device.
[0028] The detection device includes a photoelectric sensor 7 installed on the side of the discharge end of the belt conveyor 1 and a controller electrically connected thereto. The controller is electrically connected to the belt conveyor 1. The detection device also includes a rectangular mounting block 5 vertically installed on the top side wall of the long support rod 3. Half of the length of the mounting block 5 extends to the top surface of the belt of the belt conveyor 1. A circular through hole 6 is opened horizontally on the mounting block 5 at this position, and the photoelectric sensor 7 is installed in the circular through hole 6.
[0029] The photoelectric sensor 7 can be a commercially available infrared photoelectric switch sensor, specifically an infrared through-beam sensor or a diffuse reflection sensor. In this application, an infrared through-beam sensor is mainly used. The sensor is symmetrically arranged on the mounting block 5. When working, the sensor is normally closed. The output action in the normally closed setting is that when an object is sensed (in this application, a tobacco clip (stick) with woven tobacco leaves) the switch is turned off, and the conveyor belt stops conveying. When no object is sensed, the switch is energized and closed, and the conveyor belt continues to convey.
[0030] When cigarettes are being served, the conveyor belt 1 motor rotates forward. The worker places the woven tobacco clip (or stick) along the length of the conveyor belt 1. The tobacco is continuously conveyed to the photoelectric sensor 7. When the photoelectric sensor 7 detects the item, it stops the motor. If the photoelectric sensor 7 does not detect the item when the worker removes the clip, it resumes operation until the next clip is delivered to the photoelectric sensor 7. When cigarettes are being served, the conveyor belt 1 motor reverses. The worker then places the tobacco clip along the length of the conveyor belt 1, but slightly forward to prevent the photoelectric sensor 7 from stopping the motor. The photoelectric sensor 7 can also be temporarily turned off when serving cigarettes. To enhance the intelligence of the conveyor belt during cigarette unloading, the installation position of the photoelectric sensor 7 can be adjusted slightly closer to the workers loading cigarettes. When unloading cigarettes, if the conveyor belt needs to be stopped, the workers can place a cigarette clip with tobacco leaves on the sensing area of the photoelectric sensor 7 to stop the motor. After the workers at the bottom finish picking up cigarettes, they can push the cigarette clip on the sensing area of the photoelectric sensor 7 slightly forward away from the sensing area to restart the motor.
[0031] Example 2, as follows Figure 4 As shown, in order to be suitable for small tobacco curing rooms or scenarios where tobacco is not frequently added or removed and the amount of tobacco added or removed is small, the photoelectric sensor 7 is replaced with a control switch that can directly control the start and stop of the motor. The control switch, which is electrically connected to the motor of the belt conveyor 1, is set at the higher end of the belt conveyor 1 so that the tobacco adding worker can manually press the switch to start and stop the motor.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A conveyor device for loading and unloading tobacco in a tobacco curing barn, comprising a belt conveyor (1), characterized in that: A movable support device is provided at the bottom of the belt conveyor (1). A detection device for controlling the start and stop of the belt conveyor (1) is provided on the support device. The detection device is connected to the belt conveyor (1) through the support device. The support device includes a V-shaped fixed support frame (2) connected to one side of the belt conveyor (1). A long support rod (3) is provided at one end of the belt conveyor (1) relative to the fixed support frame (2). Universal wheels (4) are provided at the bottom of the fixed support frame (2) and the long support rod (3). The fixed support frame (2) and the long support rod (3) are symmetrically arranged on both sides of the belt conveyor (1). The overall height of the long support rod (3) is higher than that of the fixed support frame (2), so that the conveyor device has a certain tilt angle. Specifically, the height difference between the two ends of the feeding end and the picking end is at least 0.8 meters.
2. The conveying device for loading and unloading tobacco in a tobacco curing barn according to claim 1, characterized in that: The long support rod (3) and the fixed support frame (2) are telescopic rods that facilitate adjustment of the lifting height.
3. The conveying device for loading and unloading tobacco in a tobacco curing barn according to claim 1, characterized in that: The detection device includes a photoelectric sensor (7) installed on the side of the discharge end of the belt conveyor (1) and a controller connected thereto. The controller is connected to the belt conveyor (1) in a circuit.
4. The conveying device for loading and unloading tobacco in a tobacco curing barn according to claim 3, characterized in that: The photoelectric sensor (7) is symmetrically arranged on the long support rods (3) on both sides of the belt conveyor (1).
5. The conveying device for loading and unloading tobacco in a tobacco curing barn according to claim 4, characterized in that: A rectangular mounting block (5) is provided on the top side wall of the long support rod (3). A circular through hole (6) is provided on the top of the mounting block (5) near the belt conveyor (1). The photoelectric sensor (7) is installed in the circular through hole (6).