A weighing belt conveyor

Abstract

This utility model relates to the field of weighing device technology and discloses a weighing belt conveyor, including a weighing bracket. A conveyor belt is installed at the top of the weighing bracket, and a water tank is fixedly connected to the bottom of the weighing bracket. A cleaning component is installed at the top of the water tank, including a lead screw movably connected to one side of the top of the water tank and a threaded plate threaded to the surface of the lead screw. This utility model achieves efficient cleaning of the conveyor belt surface by installing a cleaning component at the top of the water tank and utilizing the coordinated action of a lifting cleaning brush driven by the lead screw and a nozzle with an adjustable angle via a rotating rod. The cleaning brush moves up and down along the lead screw via the threaded plate, precisely conforming to the belt surface to remove adhering damp loose material or residue. The nozzle adjusts the spray angle through a worm gear mechanism and, in conjunction with a water inlet pipe controlled by a solenoid valve, achieves directional rinsing, effectively avoiding the impact of uneven material distribution on weighing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of weighing device technology, and in particular to a weighing belt conveyor. Background Technology

[0002] A weighing belt conveyor is a device that integrates conveying and automatic weighing functions. It is widely used in production lines, warehousing, logistics and other fields. While conveying materials by belt, it uses load cells, speed sensors and control systems to weigh the materials in real time to ensure accurate detection. The belt conveyor system, as its core component, is responsible for carrying and moving the materials, while the drive unit ensures the stable operation of the belt. During the weighing process, the sensors convert the weight of the materials into electrical signals and feed them back to the control system. The system calculates and adjusts according to the set parameters and can realize automatic control functions.

[0003] Existing weighing belt conveyors still have some problems during use. For example, weighing belt conveyors sometimes need to convey and weigh bulk materials. Because some bulk materials may adhere to the belt surface due to moisture or other reasons, the material distribution is uneven, which affects the weighing results. However, most weighing belt conveyors are not equipped with self-cleaning functions. After long-term use, the residue accumulated on the belt will affect the weighing accuracy. In addition, belt conveyors that have been running for a long time also face another problem: the belt tension may be affected. With the increase of use time, the belt may loosen due to wear or other factors, resulting in unstable belt tension, which in turn affects the stability of the conveying process and the accuracy of weighing.

[0004] Therefore, we provide a weighing belt conveyor to solve the problems mentioned above. Summary of the Invention

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantages of inconvenience in real-time cleaning of the belt of the weighing belt conveyor and inconvenience in adjusting the tension of the belt conveyor, which affects the weighing accuracy. Therefore, we propose a weighing belt conveyor.

[0006] To achieve the above objectives, this application adopts the following technical solution: a weighing belt conveyor, including a weighing bracket, a conveyor belt disposed at the top of the weighing bracket, and a water tank fixedly connected to the bottom of the weighing bracket; a cleaning component is disposed at the top of the water tank, the cleaning component including a lead screw movably connected to one side of the top of the water tank, a threaded plate threaded to the surface of the lead screw, a cleaning brush fixedly connected to the top of the threaded plate, a rotating rod disposed on the other side of the top of the water tank, a nozzle fixedly connected to the surface of the rotating rod, and a dryer fixedly connected to one side of the water tank, the cleaning component being used to remove waste from the surface of the conveyor belt; a tensioning component is disposed in the inner cavity of the weighing bracket, the tensioning component including support plates on both sides of the top of the weighing bracket, a cylinder fixedly connected to the bottom of the support plates, a horizontal plate fixedly connected to the free end of the cylinder, and a tensioning roller movably connected to the bottom of the horizontal plate, the tensioning component being used to adjust the tension of the conveyor belt.

[0007] Preferably, a support frame is fixedly connected to one side of the top of the water tank, the inner cavity of the support frame is movably connected to the surface of the rotating rod, and a worm gear is fixedly connected to one end of the rotating rod.

[0008] Preferably, a motor is fixedly connected to one side of the support frame, and a worm is fixedly connected to the output end of the motor, the worm meshing with a worm wheel.

[0009] Preferably, a driving bevel gear is fixedly connected to one end of the worm gear, and a driven bevel gear is fixedly connected to one side of the lead screw surface, wherein the driving bevel gear meshes with the driven bevel gear.

[0010] Preferably, a right-angle bracket is fixedly connected to one side of the top of the water tank, and one side of the bottom of the right-angle bracket is rotatably connected to one end of the lead screw through a rotating shaft. The inner cavity of the right-angle bracket is provided with a sliding groove, and the inner cavity of the sliding groove is slidably connected to one side of the surface of the threaded plate.

[0011] Preferably, a water inlet pipe is connected to the bottom of one side of the water tank, one end of the water inlet pipe is connected to the input end of the nozzle, and a solenoid valve is installed on the surface of the water inlet pipe.

[0012] Preferably, a debris discharge port is provided on one side of the top of the water tank, and a filter plate is fixedly connected to the top of the water tank.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model utilizes a cleaning component installed on the top of the water tank. A screw-driven lifting cleaning brush and a spray nozzle with an adjustable angle achieved efficient cleaning of the conveyor belt surface. The cleaning brush moves up and down along the screw via a threaded plate, precisely conforming to the belt surface to remove adhering damp materials or residues. The spray nozzle adjusts the spray angle via a worm gear mechanism, and, in conjunction with a solenoid valve-controlled water inlet pipe, achieves directional rinsing, effectively avoiding the impact of uneven material distribution on weighing accuracy. Simultaneously, the design of the filter plate and waste outlet separates wastewater from impurities, recycling water resources. The addition of a dryer further ensures rapid drying of the belt surface, preventing secondary contamination. This cleaning system significantly improves the long-term operational stability and metering accuracy of the weighing conveyor belt.

[0015] 2. This utility model uses symmetrically arranged cylinders to drive the tensioning assembly, dynamically adjusting the tension of the conveyor belt. This solves the problem of loosening caused by long-term wear in traditional belt conveyors. The rigid frame formed by the support plate and the cross plate, combined with the rolling contact of the tensioning roller, can evenly distribute the belt tension, avoiding excessive tightness on one side or deviation. The linear extension and retraction characteristics of the cylinders make the tension adjustment more precise and the response speed fast, which can compensate for tension fluctuations caused by belt elongation or vibration in real time. In addition, the integrated design of the tensioning assembly and the weighing bracket reduces external interference, ensuring that the weighing sensor works in a stable tension environment, further improving the reliability of the weighing data. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0017] Figure 1 This is a three-dimensional view of a weighing belt conveyor.

[0018] Figure 2 This is a cross-sectional view of a weighing support in a weighing belt conveyor.

[0019] Figure 3 This is an exploded view of the bottom structure of the support plate in a weighing belt conveyor.

[0020] Figure 4 This is a schematic diagram of the top structure of the water tank in a weighing belt conveyor.

[0021] Figure 5 This is an exploded view of the top structure of the water tank in a weighing belt conveyor.

[0022] Legend: 1. Weighing bracket; 2. Conveyor belt; 3. Water tank; 4. Lead screw; 5. Threaded plate; 6. Cleaning brush; 7. Rotating rod; 8. Nozzle; 9. Dryer; 10. Support plate; 11. Cylinder; 12. Horizontal plate; 13. Tensioning roller; 14. Support frame; 15. Worm gear; 16. Motor; 17. Worm; 18. Driving bevel gear; 19. Driven bevel gear; 20. Right angle frame; 21. Slide groove; 22. Water inlet pipe; 23. Impurity outlet; 24. Filter plate. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Example 1

[0025] Please see Figures 1-5This utility model relates to a weighing belt conveyor, comprising a weighing bracket 1. The weighing bracket 1 has a weighing measuring device installed inside its cavity, a common existing structure, which will not be described in detail here. A conveyor belt 2 is installed at the top inside the weighing bracket 1, and an electric drive system is installed between the conveyor belt 2 and the weighing bracket 1 to drive the belt transmission. A water tank 3 is fixedly connected to the bottom inside the weighing bracket 1. The water tank 3 is used to hold clean water and to recycle wastewater containing impurities. A support structure is installed at the bottom inside the weighing bracket 1, with grooves on both sides of the inner cavity of the support structure to facilitate periodic treatment of impurities on the surface of the filter plate 24. A cleaning component is installed at the top of the water tank 3, including a lead screw 4 movably connected to one side of the top of the water tank 3, and a limit rod fixedly connected to the other side of the top of the water tank 3. The surface of the limit rod is slidably connected to one side of the inner cavity of a threaded plate 5, which can limit the movement of the threaded plate 5. A threaded plate 5 is threadedly connected to the surface of the lead screw 4, and a cleaning brush 6 is fixedly connected to the top of the threaded plate 5. The cleaning brush 6 has a bristle brush at the top to scrape away impurities sprayed by the nozzle 8. A rotating rod 7 is located on the other side of the top of the water tank 3. A nozzle 8 is fixedly connected to the surface of the rotating rod 7. The nozzle 8 is tilted by default to spray water onto the belt surface. A dryer 9 is fixedly connected to one side of the water tank 3. The dryer 9 is an existing structure that can dry the cleaned belt to avoid affecting subsequent conveying and weighing of materials. The cleaning component is used to remove waste from the surface of the conveyor belt 2. The weighing bracket 1 has a tensioning component in its inner cavity. The tensioning component includes support plates 10 on both sides of the top of the weighing bracket 1, a cylinder 11 fixedly connected to the bottom of the support plate 10, a horizontal plate 12 fixedly connected to the free end of the cylinder 11, and a tensioning roller 13 movably connected to the bottom of the horizontal plate 12. One side of the tensioning roller 13 is in contact with the bottom side of the conveyor belt 2 to tension the conveyor belt 2. The tensioning component is used to adjust the tension of the conveyor belt 2.

[0026] Example 2

[0027] Please see Figures 1-5Based on Embodiment 1, a support frame 14 is fixedly connected to one side of the top of the water tank 3. The support frame 14 supports rotation and can support the motor 16. The inner cavity of the support frame 14 is movably connected to the surface of the rotating rod 7. A worm gear 15 is fixedly connected to one end of the rotating rod 7. The motor 16 is fixedly connected to one side of the support frame 14. A worm 17 is fixedly connected to the output end of the motor 16. A positioning plate is fixedly connected to one side of the top of the water tank 3. The inner cavity of the positioning plate is movably connected to the surface of the worm 17 to limit the movement of the worm 17. The worm 17 is driven to rotate by the motor 16, which can cooperate with the worm gear 15 to drive the nozzle 8 to rotate at an angle. At the same time, the active bevel gear 18 and the driven bevel gear 19 rotate to raise and lower the cleaning brush 6. When the nozzle 8 rotates to a certain angle, the cleaning brush 6 descends to a certain position. Water is sprayed onto the cleaning brush 6 by the nozzle 8, which can self-clean the cleaning brush 6 and ensure the cleaning efficiency of the cleaning brush 6. The worm 17 meshes with the worm gear 15. One end of rod 17 is fixedly connected to a driving bevel gear 18, and one side of the surface of lead screw 4 is fixedly connected to a driven bevel gear 19. The driving bevel gear 18 and the driven bevel gear 19 mesh. One side of the top of water tank 3 is fixedly connected to a right-angle bracket 20, which supports lead screw 4 and limit rod. One side of the bottom of right-angle bracket 20 is rotatably connected to one end of lead screw 4 via a rotating shaft. The inner cavity of right-angle bracket 20 is provided with a sliding groove 21, which is slidably connected to one side of the surface of threaded plate 5. One side of the bottom of water tank 3 is connected to a water inlet pipe 22, one end of which is connected to the input end of nozzle 8. A solenoid valve is installed on the surface of water inlet pipe 22. By controlling the solenoid valve, the filtered water in water tank 3 can be sprayed onto the surface of belt through nozzle 8, thereby cleaning the belt in real time. One side of the top of water tank 3 is provided with a debris discharge port 23. A filter plate 24 is fixedly connected to the top of water tank 3. The debris discharge port 23 allows sewage and impurities to fall onto the surface of filter plate 24 for easy collection of impurities and filtration of sewage.

[0028] Working principle: When the equipment is started, the conveyor belt 2 is driven by the electric drive system to circulate. The material is transported to the weighing area by the belt. The weight data is detected in real time by the weighing sensor. During operation, the cleaning component is automatically started. The motor 16 drives the worm gear 17 to rotate. Through the meshing of the worm wheel 15, the rotating rod 7 is rotated, so that the nozzle 8 is adjusted to the preset tilt angle. At the same time, the active bevel gear 18 at the end of the worm gear 17 drives the driven bevel gear 19, so that the lead screw 4 rotates. The threaded plate 5 connected by threads moves vertically up and down along the slide groove 21 of the right angle frame 20, so that the cleaning brush 6 is precisely pressed against the surface of the belt. After the solenoid valve is opened, the filtered clean water in the water tank 3 is sprayed out from the nozzle 8 at high pressure through the water inlet pipe 22 to wash away the material residue adhering to the surface of the belt. The cleaning brush 6 scrapes off the loose impurities at the same time. The sewage and impurities fall into the water tank 3 through the debris outlet 23. After being separated by the filter plate 24, the clean water is recycled.

[0029] After cleaning is completed, motor 16 reverses to rotate nozzle 8 to a 90° vertical position, cleaning brush 6 descends directly below nozzle 8, nozzle 8 switches to self-cleaning mode to rinse the brush bristles, and dryer 9 starts to quickly dry the belt surface. At the same time, cylinder 11 of tensioning component automatically extends and retracts according to preset pressure value, driving tension rollers 13 on both sides to move synchronously through cross plate 12, dynamically compensating for belt slack and ensuring constant tension. Throughout the process, the cleaning and tensioning systems work together to ensure belt surface cleanliness and maintain stable conveying tension, so that the weighing sensor always outputs accurate data under optimal working conditions. The entire process requires no manual intervention, achieving efficient and accurate automated weighing and conveying.

[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A weighing belt conveyor, characterized in that, It includes a weighing bracket (1), a conveyor belt (2) is provided at the top inside the weighing bracket (1), and a water tank (3) is fixedly connected to the bottom inside the weighing bracket (1). The top of the water tank (3) is provided with a cleaning assembly, which includes a lead screw (4) movably connected to one side of the top of the water tank (3), a threaded plate (5) threaded to the surface of the lead screw (4), a cleaning brush (6) fixedly connected to the top of the threaded plate (5), a rotating rod (7) set on the other side of the top of the water tank (3), a nozzle (8) fixedly connected to the surface of the rotating rod (7), and a dryer (9) fixedly connected to one side of the water tank (3). The cleaning assembly is used to remove waste from the surface of the conveyor belt (2). The weighing bracket (1) is provided with a tensioning assembly in its inner cavity. The tensioning assembly includes support plates (10) on both sides of the top of the weighing bracket (1), a cylinder (11) fixedly connected to the bottom of the support plate (10), a horizontal plate (12) fixedly connected to the free end of the cylinder (11), and a tensioning roller (13) movably connected to the bottom of the horizontal plate (12). The tensioning assembly is used to adjust the tension of the conveyor belt (2).

2. The weighing belt conveyor according to claim 1, characterized in that: A support frame (14) is fixedly connected to one side of the top of the water tank (3). The inner cavity of the support frame (14) is movably connected to the surface of the rotating rod (7). A worm gear (15) is fixedly connected to one end of the rotating rod (7).

3. The weighing belt conveyor according to claim 2, characterized in that: A motor (16) is fixedly connected to one side of the support frame (14), and a worm (17) is fixedly connected to the output end of the motor (16). The worm (17) meshes with the worm wheel (15).

4. The weighing belt conveyor according to claim 3, characterized in that: One end of the worm (17) is fixedly connected to a driving bevel gear (18), and one side of the surface of the lead screw (4) is fixedly connected to a driven bevel gear (19). The driving bevel gear (18) meshes with the driven bevel gear (19).

5. The weighing belt conveyor according to claim 1, characterized in that: A right-angle bracket (20) is fixedly connected to one side of the top of the water tank (3). The bottom side of the right-angle bracket (20) is rotatably connected to one end of the lead screw (4) through a rotating shaft. A sliding groove (21) is opened in the inner cavity of the right-angle bracket (20). The inner cavity of the sliding groove (21) is slidably connected to one side of the surface of the threaded plate (5).

6. The weighing belt conveyor according to claim 1, characterized in that: The bottom of one side of the water tank (3) is connected to a water inlet pipe (22), one end of which is connected to the input end of the nozzle (8), and a solenoid valve is installed on the surface of the water inlet pipe (22).

7. The weighing belt conveyor according to claim 1, characterized in that: The water tank (3) has a debris discharge port (23) on one side of the top, and a filter plate (24) is fixedly connected to the top of the water tank (3).

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