Bulk flour conveying mechanism

Abstract

The utility model discloses a bulk flour conveying mechanism which comprises a fixed platform, a lifting platform and a telescopic outer cylinder, a feeding pipe is arranged on the fixed platform, a discharging pipe is arranged on the lifting platform, an electric gate valve is arranged on the discharging pipe, and a lifting mechanism is arranged on the lower surface of the fixed platform. The lifting mechanism comprises a first rotating shaft, a second rotating shaft, a transmission shaft, a motor, a first lifting rod, a second lifting rod and a steel wire rope, one end of the first lifting rod is fixedly connected with the first rotating shaft, one end of the second lifting rod is fixedly connected with the second rotating shaft, and one end of the steel wire rope is fixedly connected with the first lifting rod and the second lifting rod. The two ends of the transmission shaft are meshed with the first rotating shaft and the second rotating shaft through bevel gears correspondingly, and the motor is used for driving the first rotating shaft and the second rotating shaft to rotate oppositely. The function of accurately controlling the length of the telescopic outer cylinder is achieved, and the flour loading and conveying device can be suitable for transport vehicles of various models and is very suitable for fast loading and conveying of flour.

Description

Technical Field

[0001] This utility model relates to the field of flour transportation technology, and in particular to a bulk flour conveying mechanism. Background Technology

[0002] After processing, flour needs to be loaded and transported. Due to the different sizes of vehicles, existing conveying pipes cannot automatically extend and retract to match the length when conveying material from above the tank, requiring manual assistance, which makes the loading process cumbersome and inefficient. Telescopic chutes, or telescopic feeding devices, are still in the early stages of research and development in China. While there are overseas applications in ports and docks, directly applying these port-grade telescopic chutes to flour loading in factories is highly unsuitable.

[0003] Patent CN202323395866.0 discloses a bulk material high-drop dust-free telescopic unloading device. This device is designed for use with loading vessels. It connects multiple lifting chains via a power mechanism, which lift or lower the telescopic discharge cylinder to compress or extend the telescopic inner cone. By opening a dust removal port on the side wall of the inlet box, the dust generated during the descent is absorbed, achieving dust-free unloading. However, this technical solution requires additional use of a fan and dust removal mechanism for dust absorption. In addition, the power mechanism uses a long-distance conveying wire winch structure, which occupies a large space and is not suitable for the small loading space of flour mills. Further improvements and adaptations are needed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bulk flour conveying mechanism to solve the problem of low efficiency in the existing flour loading process that requires manual assistance.

[0005] The purpose of this utility model is achieved through the following technical solution: a bulk flour conveying mechanism, comprising a fixed platform and a lifting platform, wherein a telescopic outer cylinder is provided between the fixed platform and the lifting platform, and the two ends of the telescopic outer cylinder are respectively fixedly connected to the fixed platform and the lifting platform; a feed pipe is provided on the fixed platform, and a discharge pipe is provided on the lifting platform; an electric slide valve is provided on the discharge pipe; a lifting mechanism is provided on the lower surface of the fixed platform; the lifting mechanism includes a first rotating shaft, a second rotating shaft, a transmission shaft, a motor, a first lifting rod, a second lifting rod, and a wire rope; the first rotating shaft and the second rotating shaft are respectively located on opposite sides of the telescopic outer cylinder and are respectively rotatably connected to the fixed platform; there are two first lifting rods and two second lifting rods; one end of the first lifting rod is fixedly connected to the first rotating shaft, and one end of the second lifting rod is fixedly connected to the second rotating shaft; one end of the wire rope is respectively fixedly connected to the first lifting rod and the second lifting rod, and the other end of the wire rope is connected to the lifting platform; the two ends of the transmission shaft are respectively meshed with the first rotating shaft and the second rotating shaft through bevel gears; the motor is used to drive the first rotating shaft and the second rotating shaft to rotate in opposite directions.

[0006] Furthermore, the lifting platform is equipped with two sets of first pulleys and second pulleys that match the wire rope.

[0007] Furthermore, an inner cylinder is provided inside the telescopic outer cylinder, and the inner cylinder is respectively fitted and fixed on the feed pipe and the discharge pipe.

[0008] Furthermore, the inner cylinder is made of woven fiber fabric, and the outer cylinder is a flexible corrugated pipe structure.

[0009] Furthermore, a level sensor for detecting the height of flour inside the transport tank is provided on the lower surface of the lifting platform.

[0010] This utility model has the following advantages:

[0011] 1. The telescopic outer and inner cylinders are extended and retracted by a motor-driven lifting mechanism, which enables precise control of the telescopic length and facilitates adaptation to vehicles of different sizes.

[0012] 2. The sealing of the telescopic outer cylinder prevents flour from escaping and causing environmental pollution, while the inner cylinder design prevents flour from directly contacting the telescopic outer cylinder and causing telescopic failure. The combination of the two ensures the normal operation of the feeding process.

[0013] 3. The installation of the first and second pulleys ensures that the lifting platform is always in a horizontal position, avoiding the tilting problem of the material level gauge caused by the different rotation angles of the first and second lifting rods due to equipment wear or mismatch in installation, thus ensuring the normal operation of material height detection;

[0014] 4. The combination of motor, material leveler, electric slide gate valve and controller can realize the automation of the conveying and feeding process, and further improve production efficiency; the overall structure is simple, easy to install and maintain, and occupies little space, making it very suitable for the transportation and feeding of flour in the factory. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0018] In the diagram, 1. Fixed platform; 2. Lifting platform; 3. Feed pipe; 4. Discharge pipe; 5. Telescopic outer cylinder; 6. Inner cylinder; 7. Motor; 8. First rotating shaft; 9. Second rotating shaft; 10. First support plate; 11. Second support plate; 12. First lifting rod; 13. Second lifting rod; 14. First pulley; 15. Second pulley; 16. Wire rope; 17. Drive shaft; 18. Third support plate; 19. Electric slide gate valve; 20. Material level sensor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0022] like Figures 1 to 3 As shown, a bulk flour conveying mechanism is installed below a conveying pipe. It includes a fixed platform 1 and a lifting platform 2, both of which are flat plate structures. The fixed platform 1 is fixed to the conveying pipe via bolts or other means. A telescopic outer cylinder 5 and an inner cylinder 6 are installed between the fixed platform 1 and the lifting platform 2. The inner cylinder 6 is made of woven fiber fabric, and the outer cylinder is a flexible soft rubber corrugated pipe structure. The diameter of the telescopic outer cylinder 5 is twice the diameter of the inner cylinder 6. The two ends of the telescopic outer cylinder 5 are respectively bonded to the fixed platform 1 and the lifting platform 2. The inner cylinder 6 is used to convey flour, preventing the telescopic outer cylinder 5 from jamming during flour transport and causing the telescopic function to fail. The flour can diffuse through the fiber gaps. Between the telescopic outer cylinder 5 and the inner cylinder 6, the telescopic outer cylinder 5 serves to prevent the internal powder from overflowing and scattering. The small amount of flour between the two can be cleaned periodically. The feed pipe 3 is installed on the fixed platform 1, and the discharge pipe 4 is installed on the lifting platform 2. The inner cylinder 6 is respectively fitted and fixed on the feed pipe 3 and the discharge pipe 4. An electric slide valve 19 is installed on the discharge pipe 4. The electric slide valve 19 can be purchased commercially. A level sensor 20 for detecting the height of flour in the transport tank is installed on the lower surface of the lifting platform 2. Both are connected and cooperate with the control center such as the PLC controller. The level sensor 20 can be a radar level sensor. After the level sensor 20 detects the set height, it notifies the controller to command the electric slide valve 19 to open or close.

[0023] A lifting mechanism is installed on the lower surface of the fixed platform 1. The lifting mechanism includes a first rotating shaft 8, a second rotating shaft 9, a transmission shaft 17, a motor 7, two first lifting rods 12, two second lifting rods 13, two steel wire ropes 16, two first support plates 10, two second support plates 11, and two third support plates 18. The first rotating shaft 8 and the second rotating shaft 9 are located on opposite sides of the telescopic outer cylinder 5. The two first support plates 10, two second support plates 11, and two third support plates 18 are welded to the lower surface of the fixed platform 1. The first rotating shaft 8 passes through the first support plate 10 and is rotatably connected to it. The second rotating shaft 9 passes through the second support plate 11 and is rotatably connected to it. The transmission shaft passes through the third support plate 18 and is rotatably connected to it. The first lifting... One end of rod 12 is welded to a first rotating shaft 8, and one end of the second lifting rod 13 is welded to a second rotating shaft 9. Two sets of first pulleys 14 and second pulleys 15 are installed on the lifting platform 2. The middle part of the wire rope 16 passes through the first pulley 14 and the second pulley 15 in sequence. The two ends of the wire rope 16 are respectively fixedly connected to the ends of the first lifting rod 12 and the second lifting rod 13. The two ends of the transmission shaft 17 are respectively meshed with the first rotating shaft 8 and the second rotating shaft 9 through bevel gears. The meshing installation position of the bevel gears enables the transmission shaft 17 to rotate and drive the first rotating shaft 8 and the second rotating shaft 9 to rotate in opposite directions. The output end of the motor 7 is fixedly connected to the second rotating shaft 9. The motor 7 can be a servo motor to adapt to PLC control. A reducer or other structure can be added between the motor 7 and the second rotating shaft 9 for connection.

[0024] The working principle of this utility model is as follows: Motor 7 starts rotating, driving the second rotating shaft 9 to rotate clockwise. The second rotating shaft 9 drives the second lifting rod 13 to rotate clockwise. Simultaneously, the second rotating shaft 9 drives the transmission shaft 17 to rotate. The transmission shaft 17 drives the first rotating shaft 8 to rotate counterclockwise. The first rotating shaft 8 drives the first lifting rod 12 to rotate counterclockwise, causing the first lifting rod 12 and the second lifting rod 13 to rotate 90 degrees from a horizontal state to a vertical state. Under the weight of the electric slide gate valve 19, the telescopic outer cylinder 5 and inner cylinder 6 are straightened and extended downwards. The PLC controller controls... The electric slide gate valve 19 is opened to continuously feed materials into the flour transport tank. When the material level sensor 20 detects that the tank is full, it sends a feedback signal to the PLC controller, causing the PLC controller to close the electric slide gate valve 19. After the personnel adjust the vehicle position, the feeding action can be triggered again. The length of the telescopic outer cylinder 5 is precisely controlled by the rotation angle of a motor 7, which is convenient for adjustment according to different vehicle sizes. The installation of the first pulley 14 and the second pulley 15 can ensure the levelness of the lifting platform 2 and avoid imbalance caused by the different rotation angles of the first rotating shaft 8 and the second rotating shaft 9.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bulk flour conveying mechanism, characterized in that: The system includes a fixed platform (1) and a lifting platform (2). A telescopic outer cylinder (5) is provided between the fixed platform (1) and the lifting platform (2). The two ends of the telescopic outer cylinder (5) are fixedly connected to the fixed platform (1) and the lifting platform (2), respectively. A feed pipe (3) is provided on the fixed platform (1), and a discharge pipe (4) is provided on the lifting platform (2). An electric slide valve (19) is provided on the discharge pipe (4). A lifting mechanism is provided on the lower surface of the fixed platform (1). The lifting mechanism includes a first rotating shaft (8), a second rotating shaft (9), a transmission shaft (17), a motor (7), a first lifting rod (12), a second lifting rod (13), and a wire rope (16). The first rotating shaft (8) and the second rotating shaft (9) are respectively connected to the feed pipe (1) and the discharge pipe (2). Located on opposite sides of the telescopic outer cylinder (5) and rotatably connected to the fixed platform (1), there are two first lifting rods (12) and two second lifting rods (13). One end of the first lifting rod (12) is fixedly connected to the first rotating shaft (8), and one end of the second lifting rod (13) is fixedly connected to the second rotating shaft (9). One end of the wire rope (16) is fixedly connected to the first lifting rod (12) and the second lifting rod (13) respectively, and the other end of the wire rope (16) is connected to the lifting platform (2). The two ends of the transmission shaft (17) are respectively meshed with the first rotating shaft (8) and the second rotating shaft (9) through bevel gears. The motor (7) is used to drive the first rotating shaft (8) and the second rotating shaft (9) to rotate in opposite directions.

2. The bulk flour conveying mechanism according to claim 1, characterized in that: The lifting platform (2) is equipped with two sets of first pulleys (14) and second pulleys (15) that match the wire rope (16).

3. The bulk flour conveying mechanism according to claim 1, characterized in that: The telescopic outer cylinder (5) is provided with an inner cylinder (6), which is respectively fitted and fixed on the feed pipe (3) and the discharge pipe (4).

4. The bulk flour conveying mechanism according to claim 3, characterized in that: The inner cylinder (6) is made of fiber textile fabric, and the telescopic outer cylinder (5) is a flexible corrugated pipe structure.

5. The bulk flour conveying mechanism according to claim 1, characterized in that: The lower surface of the lifting platform (2) is provided with a level gauge (20) for detecting the height of flour in the transport tank.

Images