Tensioning device of electronic belt scale
By introducing a tensioning device into the electronic belt scale, and using cleaning roller brushes and striking rubber balls to clean impurities on the belt surface, the problem of material residue affecting weighing accuracy is solved, achieving efficient impurity collection and accurate weighing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU TENGYUAN ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-17
AI Technical Summary
During use, material residue tends to adhere to the belt of existing electronic belt scales, affecting weighing accuracy.
A tensioning device for an electronic belt scale is designed, comprising a tensioning roller, a cleaning roller brush, and a striking rubber ball. The device cleans impurities from the belt surface by rotating the roller and collects the impurities into a collection box for discharge, preventing impurity accumulation.
It effectively prevents impurities from accumulating on the belt, improves weighing accuracy, and reduces material waste.
Smart Images
Figure CN224136697U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic belt scale technology, and in particular to a tensioning device for electronic belt scales. Background Technology
[0002] Electronic belt scales are automatic weighing instruments that continuously weigh bulk materials on a conveyor belt without requiring subdivision of mass or interruption of the belt's movement. The weighing frame structure of electronic belt scales mainly includes four types: double-lever multi-idler type, single-idler type, cantilever type, and suspended type. Electronic belt scales with double-lever multi-idler and suspended frames have longer weighing sections, typically with 2 to 8 sets of idlers, offering high weighing accuracy and suitable for applications with high flow rates and high accuracy requirements. The belt speed of electronic belt scales with single-idler and cantilever frames can be determined by the manufacturer, making them suitable for applications with lower flow rates or for flow control and batching.
[0003] Electronic belt scales are used when weighing materials. However, in some existing electronic belt scales, materials fall onto the belt, which can cause material residue to adhere to the belt, increasing the weight of the device and affecting the weighing effect and accuracy. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a tensioning device for an electronic belt scale that can solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a tensioning device for an electronic belt scale, comprising a support platform, a weighing frame slidably connected inside the support platform, four weighing sensors fixedly installed inside the support platform, the upper ends of the four weighing sensors being fixedly connected to the four support legs of the weighing frame, a belt being installed inside the weighing frame, two fixed frames fixedly installed at the bottom of the weighing frame, a drive motor fixedly installed on one end of the two fixed frames, a threaded rod fixedly installed at the output end of the drive motor, a lifting frame threadedly connected to the surface of the threaded rod, a first rotating shaft rotatably connected between the two vertical plates of the lifting frame, a tensioning roller fixedly sleeved on the surface of the first rotating shaft, the tensioning roller contacting the belt, a limiting rod fixedly installed on the fixed frame, the surface of the limiting rod being slidably connected to the inside of the lifting frame.
[0006] Preferably, the weighing frame has four guide rods slidably connected inside, and the lower ends of the four guide rods are fixedly connected to the top of the support platform.
[0007] Preferably, a large gear is fixedly sleeved on the first rotating shaft, and a second rotating shaft is rotatably connected to one side of the lifting frame. A small gear is fixedly sleeved on the second rotating shaft, and the small gear meshes with the large gear.
[0008] Preferably, a cleaning roller brush is fixedly sleeved on the second rotating shaft, and the cleaning roller brush is in contact with the surface of the bottom of the belt.
[0009] Preferably, a collection box is fixedly installed on the lifting frame, the bottom of the collection box is inclined, and a guide pipe is fixedly installed on one side of the collection box.
[0010] Preferably, a collection box is provided on the top of the support platform.
[0011] Preferably, a sprocket is fixedly sleeved on the second rotating shaft, and a third rotating shaft is rotatably connected inside the collection box. A sprocket is also fixedly sleeved on the surface of the third rotating shaft, and a chain is driven to the two sprockets.
[0012] Preferably, a striking rubber ball is fixedly installed on the third rotating shaft, and the striking rubber ball contacts the inclined surface at the bottom of the collection box.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) The tensioning device of the electronic belt scale causes the belt to drive the tensioning roller to rotate, which in turn causes the first rotating shaft and the large gear to rotate, which in turn causes the small gear and the second rotating shaft to rotate, which causes the second rotating shaft to drive the cleaning roller brush to rotate, thus cleaning the surface of the belt, thereby preventing impurities from accumulating on the belt, causing the device weight to increase, which in turn affects the weighing accuracy and reduces the weighing error.
[0015] (2) The tensioning device of the electronic belt scale causes the second rotating shaft to drive the third rotating shaft to rotate through two sprockets and a chain, which in turn causes the striking rubber ball to rotate, which in turn causes the striking rubber ball to strike the inner wall of the collection box, which in turn causes the collection box to shake slightly, which in turn causes the impurities inside the collection box and the guide pipe to slide along, preventing the accumulation phenomenon and making it easy to quickly slide the impurities into the inside of the collection box.
[0016] (3) The tensioning device of the electronic belt scale uses the cleaning roller brush to clean the impurities, which fall into the inside of the collection box. The impurities then slide along the inclined surface at the bottom of the collection box and enter the inside of the guide pipe. They are then discharged from the inside of the collection box through the guide pipe and fall into the inside of the collection box, thus achieving the collection of impurities. This prevents impurities from being located on the weighing frame, which would increase the weight of the weighing frame and affect the accuracy. At the same time, it also facilitates the collection of impurity materials and reduces material waste. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is a schematic diagram of the tensioning device for an electronic belt scale according to the present invention;
[0019] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0020] Figure 3 This is a schematic diagram of the drive motor of this utility model;
[0021] Figure 4 This is a schematic diagram of the weighing sensor of this utility model;
[0022] Figure 5 This is a schematic diagram of the collection box of this utility model.
[0023] Reference numerals: 1. Support platform; 2. Weighing frame; 3. Belt; 4. Guide rod; 5. Fixing frame; 6. Drive motor; 7. Collection box; 8. Large gear; 9. First rotating shaft; 10. Tensioning roller; 11. Striking rubber ball; 12. Cleaning roller brush; 13. Small gear; 14. Second rotating shaft; 15. Collection box; 16. Lifting frame; 17. Threaded rod; 18. Limiting rod; 19. Guide tube; 20. Weighing sensor; 21. Third rotating shaft; 22. Chain; 23. Sprocket. Detailed Implementation
[0024] 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.
[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0026] Please see Figure 1-5 This utility model provides a technical solution: a tensioning device for an electronic belt scale, including a support platform 1, a weighing frame 2 slidably connected inside the support platform 1, four weighing sensors 20 fixedly installed inside the support platform 1, the upper ends of the four weighing sensors 20 being fixedly connected to the four support legs of the weighing frame 2, and a belt 3 being provided inside the weighing frame 2.
[0027] During weighing, the material is placed on the belt 3, which then compresses the weighing frame 2, causing the weighing frame 2 to slide inside the support platform 1 and compress the four weighing sensors 20, thereby achieving the weighing of the material.
[0028] The weighing frame 2 has four guide rods 4 that are slidably connected inside, and the lower ends of the four guide rods 4 are fixedly connected to the top of the support platform 1.
[0029] The four guide rods 4 are designed to restrict the weighing frame 2, allowing it to slide only up and down, thus preventing deviation and improving weighing accuracy.
[0030] Two fixed frames 5 are fixedly installed at the bottom of the weighing frame 2. A drive motor 6 is fixedly installed on one end of the two fixed frames 5. A threaded rod 17 is fixedly installed at the output end of the drive motor 6. A lifting frame 16 is threadedly connected to the surface of the threaded rod 17. A first rotating shaft 9 is rotatably connected between the two vertical plates of the lifting frame 16. A tension roller 10 is fixedly sleeved on the surface of the first rotating shaft 9. The tension roller 10 is in contact with the belt 3. A limiting rod 18 is fixedly installed on the fixed frame 5. The surface of the limiting rod 18 is slidably connected to the inside of the lifting frame 16.
[0031] Start the drive motor 6, which drives the threaded rod 17 to rotate, thereby causing the lifting frame 16 to slide downward on the surface of the limiting rod 18. This causes the first rotating shaft 9 and the tensioning roller 10 to move downward, thereby pulling the belt 3. This facilitates the adjustment of the belt 3's tension, preventing the belt 3 from becoming loose and improving the weighing effect.
[0032] A large gear 8 is fixedly sleeved on the first rotating shaft 9. A second rotating shaft 14 is rotatably connected to one side of the lifting frame 16. A small gear 13 is fixedly sleeved on the second rotating shaft 14. The small gear 13 meshes with the large gear 8. A cleaning roller brush 12 is fixedly sleeved on the second rotating shaft 14. The cleaning roller brush 12 contacts the surface of the bottom of the belt 3.
[0033] When belt 3 rotates, it will cause belt 3 to drive tension roller 10 to rotate, which in turn causes first rotating shaft 9 and large gear 8 to rotate, which in turn causes small gear 13 and second rotating shaft 14 to rotate. Second rotating shaft 14 drives cleaning roller brush 12 to rotate, cleaning the surface of belt 3, thereby preventing impurities from accumulating on belt 3, increasing the weight of the device, and affecting the accuracy of weighing, thus reducing weighing error.
[0034] A collection box 15 is fixedly installed on the lifting frame 16. The bottom of the collection box 15 is inclined. A guide pipe 19 is fixedly installed on one side of the collection box 15. A collection box 7 is provided on the top of the support platform 1.
[0035] Impurities cleaned by the cleaning roller brush 12 fall into the collection box 15, then slide along the inclined surface at the bottom of the collection box 15 and enter the guide pipe 19. They are then discharged from the collection box 15 through the guide pipe 19 and fall into the collection box 7. This process collects impurities, preventing them from being on the weighing frame 2 and increasing its weight, which would affect accuracy. It also facilitates the collection of impurities and reduces material waste.
[0036] A sprocket 23 is fixedly sleeved on the second rotating shaft 14. A third rotating shaft 21 is rotatably connected inside the collection box 15. A sprocket 23 is also fixedly sleeved on the surface of the third rotating shaft 21. A chain 22 is driven and connected to the two sprockets 23. A striking rubber ball 11 is fixedly installed on the third rotating shaft 21. The striking rubber ball 11 contacts the inclined surface at the bottom of the collection box 15.
[0037] When the second rotating shaft 14 rotates, it drives the third rotating shaft 21 to rotate through the two sprockets 23 and the chain 22, which in turn causes the striking rubber ball 11 to rotate. This causes the striking rubber ball 11 to strike the inner wall of the collection box 15, which in turn causes the collection box 15 to vibrate slightly. This allows the impurities inside the collection box 15 and the guide pipe 19 to slide along the surface, preventing accumulation and facilitating the quick sliding of impurities into the collection box 7.
[0038] Working principle:
[0039] The material is placed on the belt 3, which then compresses the weighing frame 2, causing the weighing frame 2 to slide inside the support platform 1 and compress the four weighing sensors 20, thereby weighing the material. The drive motor 6 is started, which drives the threaded rod 17 to rotate, causing the lifting frame 16 to slide downward on the surface of the limiting rod 18, thereby causing the first rotating shaft 9 and the tensioning roller 10 to move downward, thereby pulling the belt 3 to facilitate the adjustment of the belt 3 tension.
[0040] When belt 3 rotates, it will cause belt 3 to drive tension roller 10 to rotate, which in turn causes first rotating shaft 9 and large gear 8 to rotate, which in turn causes small gear 13 and second rotating shaft 14 to rotate, causing second rotating shaft 14 to drive cleaning roller brush 12 to rotate, cleaning the surface of belt 3.
[0041] Impurities cleaned by the cleaning roller brush 12 fall into the collection box 15, then slide along the inclined surface at the bottom of the collection box 15 and enter the guide pipe 19. They are then discharged from the collection box 15 through the guide pipe 19 and fall into the collection hopper 7, thus collecting the impurities. When the second rotating shaft 14 rotates, it drives the third rotating shaft 21 to rotate through the two sprockets 23 and the chain 22. This causes the striking rubber ball 11 to rotate and strike the inner wall of the collection box 15, causing the collection box 15 to vibrate slightly. This allows the impurities inside the collection box 15 and the guide pipe 19 to slide along the surface.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A tensioning device for an electronic belt scale comprising a support table (1), characterized in that: The support platform (1) is slidably connected to a weighing frame (2). Four weighing sensors (20) are fixedly installed inside the support platform (1). The upper ends of the four weighing sensors (20) are fixedly connected to the four support legs of the weighing frame (2). A belt (3) is installed inside the weighing frame (2). Two fixed frames (5) are fixedly installed at the bottom of the weighing frame (2). A drive motor (6) is fixedly installed on one end of the two fixed frames (5). A threaded rod (17) is fixedly installed at the output end of the drive motor (6). A lifting frame (16) is threadedly connected to the surface of the threaded rod (17). A first rotating shaft (9) is rotatably connected between the two vertical plates of the lifting frame (16). A tension roller (10) is fixedly sleeved on the surface of the first rotating shaft (9). The tension roller (10) is in contact with the belt (3). A limiting rod (18) is fixedly installed on the fixed frame (5). The surface of the limiting rod (18) is slidably connected to the inside of the lifting frame (16).
2. A take-up device for an electronic belt scale according to claim 1, characterized in that: The weighing frame (2) has four guide rods (4) slidably connected inside, and the lower ends of the four guide rods (4) are fixedly connected to the top of the support platform (1).
3. A take-up device for an electronic belt scale according to claim 2, characterized in that: A large gear (8) is fixedly sleeved on the first rotating shaft (9), and a second rotating shaft (14) is rotatably connected to one side of the lifting frame (16). A small gear (13) is fixedly sleeved on the second rotating shaft (14), and the small gear (13) meshes with the large gear (8).
4. A take-up device for an electronic belt scale according to claim 3, characterized in that: A cleaning roller brush (12) is fixedly sleeved on the second rotating shaft (14), and the cleaning roller brush (12) is in contact with the surface of the bottom of the belt (3).
5. A take-up device for an electronic belt scale according to claim 4, characterized in that: A collection box (15) is fixedly installed on the lifting frame (16). The bottom of the collection box (15) is inclined, and a guide pipe (19) is fixedly installed on one side of the collection box (15).
6. A take-up device for an electronic belt scale according to claim 5, characterized in that: A collection box (7) is provided on the top of the support platform (1).
7. A take-up device for an electronic belt scale according to claim 6, characterized in that: A sprocket (23) is fixedly sleeved on the second rotating shaft (14), and a third rotating shaft (21) is rotatably connected inside the collection box (15). A sprocket (23) is also fixedly sleeved on the surface of the third rotating shaft (21), and a chain (22) is driven on the two sprockets (23).
8. A take-up device for an electronic belt scale according to claim 7, characterized in that: A striking rubber ball (11) is fixedly installed on the third rotating shaft (21), and the striking rubber ball (11) contacts the inclined surface at the bottom of the collection box (15).