Weight-based self-unloading material box

Abstract

This utility model relates to the field of material conveying technology and discloses a weighing-type self-unloading material box, including a base frame and a material box. Four support frames are fixed to the top of the base frame, and each support frame has a protrusion at its top. A weighing sensor is fixed to the bottom of the protrusion, and the bottom of the weighing sensor is fixedly connected to the top surface of the material box. A discharge pipe is connected to the bottom of the material box, and a discharge valve is connected to the bottom of the discharge pipe. An electrical control box is fixed to one side of the base frame surface. A rectangular discharge port for discharging material downwards is opened on the base frame surface. A support plate is fixed to the upper part of the inner wall of the material box, and a rotating shaft is rotatably connected to the surface of the support plate. A spiral blade is fixed below the surface of the rotating shaft and is slidably connected to the inner wall of the discharge pipe. A driving structure is provided on the surface of the material box. This weighing-type self-unloading material box achieves accurate and automatic quantitative unloading of materials, solving the problems of low efficiency and large errors in traditional methods.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically to a weighing-type self-unloading material box. Background Technology

[0002] In industries such as agriculture, chemicals, feed, and food processing, it is often necessary to unload granular or powdered materials (such as grains, fertilizers, and feed ingredients) from storage bins, and the weight unloaded each time needs to be precisely controlled.

[0003] Currently, the common methods are manual operation or the use of complex weighing and feeding machines. The former is inefficient and has large errors, while the latter is costly and has a complex structure. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a weighing-type self-unloading box for materials, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a weighing-type self-unloading material bin, including a base frame and a material bin. Four support frames are fixed on the top of the base frame. The top of the support frames is provided with a protrusion. A weighing sensor is fixed at the bottom of the protrusion. The bottom of the weighing sensor is fixedly connected to the top surface of the material bin. A discharge pipe is connected to the bottom of the material bin. A discharge valve is connected to the bottom of the discharge pipe. An electrical control box is fixed on one side of the base frame surface. A rectangular discharge port for discharging materials downwards is opened on the base frame surface. A support plate is fixed above the inner wall of the material bin. A rotating shaft is rotatably connected to the surface of the support plate. A spiral blade is fixed below the surface of the rotating shaft. The spiral blade is slidably connected to the inner wall of the discharge pipe. A driving structure is provided on the surface of the material bin.

[0006] Preferably, the material box surface driving structure includes a drive motor, the drive motor is fixed to the surface of the material box, the output shaft of the drive motor is fixed with a connecting rod, the surface of the connecting rod is fixed with a first pulley, and the rotating shaft is located on the surface above the support plate and a second pulley is fixed thereon. The first pulley and the second pulley are connected by belt drive.

[0007] Preferably, a dispersing rod is fixed on the surface above the helical blades of the rotating shaft.

[0008] Preferably, the base frame surface has multiple fork openings.

[0009] Preferably, a hoisting hook is fixed to the top of the support frame.

[0010] Preferably, a guide hopper is fixed to the bottom of the inner wall of the hopper.

[0011] Preferably, the electrical control box is equipped with a controller inside, and the surface of the electrical control box is equipped with a touch screen for use with the controller.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] This utility model adopts an overall layout in which the material bin is directly suspended from the support frame by a weighing sensor, eliminating all complex levers, hinges and other mechanical transmission components. This not only simplifies the mechanical structure and reduces manufacturing costs and equipment failure rate, but also enables direct and lossless measurement of the total weight of the material bin, resulting in better metering accuracy. The integrated design of the screw feeder and weighing unit makes the feeding process smooth and controllable, solving the common problem of material sloshing in gravity-fed feeding. The design of the dispersing rod and guide bucket specifically addresses the common industry problem of easy agglomeration and residue of powder and granular materials, ensuring smooth material flow and complete and accurate metering. The user-friendly design of the fork opening and lifting hook improves the equipment's mobility and site adaptability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0018] The components include: 1. Base frame; 2. Support frame; 3. Weighing sensor; 4. Material bin; 5. Discharge pipe; 6. Discharge valve; 7. Electrical control box; 8. Rectangular discharge port; 9. Support plate; 10. Rotating shaft; 11. Spiral blade; 12. Dispersing rod; 13. Drive motor; 14. First pulley; 15. Second pulley; 16. Guide hopper; 17. Fork opening; 18. Lifting hook. Detailed Implementation

[0019] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0020] Please see Figure 1-4The weighing-type self-unloading material box includes a base frame 1 and a material box 4. Four support frames 2 are fixed on the top of the base frame 1. The top of the support frame 2 is provided with a protrusion. A weighing sensor 3 is fixed at the bottom of the protrusion. The bottom of the weighing sensor 3 is fixedly connected to the top surface of the material box 4. A discharge pipe 5 is connected to the bottom of the material box 4. A discharge valve 6 is connected to the bottom of the discharge pipe 5. An electrical control box 7 is fixed on the surface of one side of the base frame 1. A rectangular discharge port 8 for discharging materials downwards is opened on the surface of the base frame 1. A support plate 9 is fixed on the upper part of the inner wall of the material box 4. A rotating shaft 10 is rotatably connected to the surface of the support plate 9. A spiral blade 11 is fixed below the surface of the rotating shaft 10. The spiral blade 11 is slidably connected to the inner wall of the discharge pipe 5. A drive structure is provided on the surface of the material box 4.

[0021] Through the above technical solution, the weight of the material bin 4 and the materials inside it is suspended above the base frame 1 by four weighing sensors 3. This allows the weighing sensors 3 to accurately measure the total weight of the material bin 4 in real time. The controller in the electrical control box 7 continuously reads this weight data. When unloading is required, the controller controls the drive structure to work, driving the rotating shaft 10 and the spiral blade 11 to rotate, realizing forced spiral conveying and unloading. At the same time, the controller judges the amount of material that has been unloaded based on the value of the weight reduction, and realizes quantitative control by controlling the opening and closing of the discharge valve 6 and the stopping of the drive motor 13. The rectangular discharge port 8 ensures that the unloaded material can be smoothly discharged from the bottom of the equipment. This device forms an integrated spiral feeder by directly setting the spiral blade 11 in the discharge pipe 5. The structure is compact, the material discharge is smooth and the flow rate is easy to control, realizing high-precision quantitative unloading.

[0022] The surface drive structure of the material box 4 includes a drive motor 13, which is fixed to the surface of the material box 4. A connecting rod is fixed to the output shaft of the drive motor 13, and a first pulley 14 is fixed to the surface of the connecting rod. A second pulley 15 is fixed to the surface of the rotating shaft 10 above the support plate 9. The first pulley 14 and the second pulley 15 are connected by belt drive.

[0023] Through the above technical solution, after the drive motor 13 starts, its output shaft drives the first pulley 14 to rotate. Through belt transmission, the power is transmitted to the second pulley 15, thereby driving the rotating shaft 10 and the spiral blade 11 at its lower end to rotate together. This belt transmission method has good buffering and vibration absorption capabilities, which can effectively absorb the impact vibration generated when the drive motor 13 starts and stops, preventing these vibrations from being directly transmitted to the spiral blade 11 and the material box 4. This avoids the instantaneous interference caused by vibration to the reading of the weighing sensor 3, ensuring the stability and accuracy of the measurement data. At the same time, by installing the drive motor 13 on the material box 4, making it part of the weighing system, the reaction force of the motor is internalized, eliminating the twisting and interference caused by the motor operation to the weighing body, and improving the reliability of the system.

[0024] A dispersing rod 12 is fixed on the surface of the rotating shaft 10 above the spiral blade 11.

[0025] With the above technical solution, when the rotating shaft 10 is driven to rotate, the spiral blade 11 below rotates to feed the material, and the dispersing rod 12 above also rotates synchronously. This can effectively prevent the material from "bridging" or "rat hole" at the bottom outlet of the material box 4, ensuring the continuity of material supply and avoiding metering interruption or error caused by poor material feeding. At the same time, its stirring also has a certain mixing effect, which helps to maintain the uniformity of material composition and has a positive significance for the stability of subsequent processes.

[0026] The base frame 1 has multiple fork openings 17 on its surface.

[0027] With the above technical solution, the two forks of the forklift can be easily inserted into the specially opened fork openings 17 on the base frame 1, so as to smoothly lift the entire weighing material unloading box, thereby facilitating its movement and transfer between different work points such as workshops and warehouses, greatly improving the mobility and layout flexibility of the equipment.

[0028] The top of the support frame 2 is fixed with a hoisting hook 18.

[0029] With the above technical solution, when the site conditions are not suitable for using forklifts, or when it is necessary to lift the equipment to a higher platform, the operator can use cranes, overhead cranes and other lifting equipment to connect the hook to the lifting hook 18 fixed on the top of the support frame 2, so that the entire self-unloading box can be lifted and moved to the target position safely and stably.

[0030] A guide bucket 16 is fixed to the bottom of the inner wall of the material bin 4.

[0031] Through the above technical solution, the guide bucket 16 uses an inverted frustum-shaped structure to guide and gather the material flow in the material box 4. When the material slides down under its own gravity, the smooth inclined wall of the guide bucket 16 can guide it to flow to the inlet of the discharge pipe 5, which greatly reduces the residue and accumulation of material in the bottom corner area of ​​the material box 4.

[0032] The electrical control box 7 is equipped with a controller, and the surface of the electrical control box 7 is equipped with a touch screen for use with the controller. The controller signal input terminal is connected to the weighing sensor 3 and the touch screen, and the controller signal output terminal is connected to the touch screen, the drive motor 13 and the discharge valve 6.

[0033] Through the above technical solution, the controller, as the brain of the entire equipment, receives the weight signal from the weighing sensor 3 in real time and performs calculations. The operator interacts with the machine through the touch screen on the surface of the electrical control box 7. The controller displays the real-time weight information on the touch screen and automatically issues a command to stop the drive motor 13 and close the discharge valve 6 when the calculation determines that the set weight has been reached.

[0034] Working principle: Material is added directly into the material bin 4 through the top. The operator sets the target weight of the material to be unloaded through the touch screen on the surface of the control box 7. After the equipment is started, the controller in the control box 7 records the total weight of the material bin 4 measured by the weighing sensor 3 as the initial value. Then, the controller issues a command to open the discharge valve 6 and start the drive motor 13. The drive motor 13 drives the rotating shaft 10 and the spiral blade 11 to rotate through the first pulley 14 and the second pulley 15, pushing the material out of the discharge pipe 5 at a uniform speed. The material is discharged through the rectangular discharge port 8 of the base frame 1. During this process, the dispersing rod 12 rotates synchronously to break up any clumps of material and ensure smooth discharge. The guide hopper 16 guides the material to the inlet of the discharge pipe 5 to reduce residue. This device combines a simple mechanical structure with intelligent electrical control to achieve accurate and automatic quantitative unloading of materials, solving the problems of low efficiency and large error in traditional methods.

[0035] Although specific 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 specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weighing-type self-unloading material container, characterized in that: The device includes a base frame (1) and a hopper (4). The base frame (1) has four support frames (2) fixed on its top. The support frames (2) have protrusions on their tops. A weighing sensor (3) is fixed at the bottom of the protrusions. The bottom of the weighing sensor (3) is fixedly connected to the top surface of the hopper (4). The bottom of the hopper (4) is connected to a discharge pipe (5). The bottom of the discharge pipe (5) is connected to a discharge valve (6). An electrical control box (7) is fixed on one side of the base frame (1). A rectangular discharge port (8) for discharging materials downwards is opened on the surface of the base frame (1). A support plate (9) is fixed above the inner wall of the hopper (4). A rotating shaft (10) is rotatably connected to the surface of the support plate (9). A spiral blade (11) is fixed below the surface of the rotating shaft (10). The spiral blade (11) is slidably connected to the inner wall of the discharge pipe (5). A driving structure is provided on the surface of the hopper (4).

2. The self-unloading material weighing box according to claim 1, characterized in that: The surface driving structure of the material box (4) includes a drive motor (13), the drive motor (13) is fixed on the surface of the material box (4), the output shaft of the drive motor (13) is fixed with a connecting rod, the surface of the connecting rod is fixed with a first pulley (14), the rotating shaft (10) is located above the support plate (9) and the surface of the shaft is fixed with a second pulley (15), the first pulley (14) and the second pulley (15) are connected by belt drive.

3. The self-unloading material weighing box according to claim 1, characterized in that: The rotating shaft (10) is located on the surface above the spiral blade (11) and a dispersing rod (12) is fixed thereon.

4. The self-unloading material weighing box according to claim 1, characterized in that: The base frame (1) has multiple fork openings (17) on its surface.

5. The self-unloading material weighing box according to claim 1, characterized in that: The top of the support frame (2) is fixed with a hoisting hook (18).

6. The self-unloading material weighing box according to claim 1, characterized in that: The bottom of the inner wall of the material box (4) is fixed with a guide bucket (16).

7. The self-unloading material weighing box according to claim 1, characterized in that: The electrical control box (7) is equipped with a controller inside, and the surface of the electrical control box (7) is equipped with a touch screen for use with the controller.

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