A load conveyor with detectable center of gravity
By installing gravity sensors at the four corners of the conveyor belt and combining them with the guide unit to calculate the product coordinates, the problem of the conveyor belt being unable to continuously track the product position was solved, enabling real-time position tracking and quality inspection, and reducing system complexity and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIUHAO PRECISION CERAMIC KUNSHAN CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing conveyor belts cannot continuously track the product position after weighing, requiring the addition of complex and costly sensor systems for position detection.
Gravity sensors are installed at the four corners of the conveyor belt. The product's coordinate position is determined by calculating the readings of the four sensors, and real-time position tracking is achieved in conjunction with the guide unit.
It enables real-time tracking and quality inspection of product location, reduces system complexity and cost, and improves integration.
Smart Images

Figure CN224492419U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of conveyor belt technology, and in particular relates to a weighing conveyor belt that can detect the center of gravity. Background Technology
[0002] Conveyor belts are commonly used components in industrial automation modules. They can transport products and materials to another location in a specific direction. In order to improve automation functions, some conveyor belts also have weighing modules added, which can automatically weigh the products after they flow through the conveyor belt.
[0003] However, currently, once the weight is calculated, the conveyor belt cannot continue to track changes in the product's position. Therefore, to determine whether the product is in place, it is often necessary to add other sensors, such as laser sensors, distance sensors, etc. The position of the product on the conveyor belt can be detected through the cooperation between the sensors. However, this is often complex in structure, expensive, and the matching and debugging between the various systems is time-consuming. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A weighing conveyor belt capable of detecting center of gravity includes a conveyor belt body and a leg support disposed below the conveyor belt body, wherein at least four sets of gravity sensors are also provided between the leg support and the conveyor belt body.
[0006] The conveyor belt body includes a conveyor belt frame and a drive shaft and a driven shaft respectively disposed at both ends of the conveyor belt frame. A drive element is also installed on the conveyor belt frame. The drive element drives the drive shaft to rotate through a transmission element. The drive shaft and the driven shaft are covered with a conveyor belt.
[0007] The gravity sensor is divided into a fixed end and a force-receiving end. The fixed end is fixedly connected to the leg bracket, and the force-receiving end is fixedly connected to the conveyor belt frame.
[0008] Furthermore, the leg support is also provided with several sets of guide units, each guide unit including a guide post and a guide sleeve. The guide post is fixedly connected to the conveyor belt frame, and the guide sleeve is fixedly connected to the leg support. The conveyor belt frame can slide against the leg support through the guide post and the guide sleeve.
[0009] Furthermore, the conveyor belt frame also includes at least two sets of guide plates, which are respectively located at both ends of the conveyor belt frame and inside the conveyor belt. The guide plates are used to guide the conveyor belt.
[0010] Furthermore, there are four gravity sensors, which are respectively located at the four corners of the conveyor belt frame. The four corner gravity sensors are denoted as A, B, C, and D, and a coordinate system is established with point A as the reference.
[0011] Furthermore, the transmission element is a belt drive.
[0012] Furthermore, the driving element is a motor.
[0013] Furthermore, the gravity sensor is an HX711 module.
[0014] The beneficial effects of this utility model are:
[0015] This invention connects the leg supports to the four corners of the conveyor belt via gravity sensors. By reading the values of the four sensors in real time, the coordinate position of the product on the conveyor belt can be calculated. It can obtain the total mass while continuously obtaining the real-time position of the product. The cost is controllable and the integration is high. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure provided by this utility model (red represents the gravity sensor);
[0017] Figure 2 This is a schematic diagram of the conveyor belt frame structure provided by this utility model;
[0018] Figure 3 This is a schematic diagram of the leg support structure provided by this utility model (red represents the gravity sensor, and green represents the guide unit);
[0019] Figure 4 This is a schematic diagram of one embodiment of the present invention (red represents the conveyor belt);
[0020] The parts in the attached diagram are labeled as follows:
[0021] 1. Conveyor belt body; 11. Conveyor belt frame; 12. Drive element; 13. Drive shaft; 14. Driven shaft; 15. Guide plate; 16. Transmission element; 2. Leg support; 3. Gravity sensor; 4. Guide unit; 41. Guide column; 42. Guide sleeve. Detailed Implementation
[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0023] Example:
[0024] like Figures 1 to 4As shown, a weighing conveyor belt capable of detecting the center of gravity includes a conveyor belt body 1 and a leg support 2 disposed below the conveyor belt body 1. At least four sets of gravity sensors 3 are also provided between the leg support 2 and the conveyor belt body 1. Preferably, the gravity sensor 3 is an HX711 module.
[0025] The conveyor belt body 1 includes a conveyor belt frame 11 and a drive shaft 13 and a driven shaft 14 respectively disposed at both ends of the conveyor belt frame 1. A drive element 12 is also mounted on the conveyor belt frame 1. The drive element 12 drives the drive shaft 13 to rotate via a transmission element 16. The drive shaft 13 and the driven shaft 14 are covered with a conveyor belt. Preferably, the conveyor belt frame 11 further includes at least two sets of guide plates 15, which are respectively disposed at both ends of the conveyor belt frame 11 and located inside the conveyor belt. The guide plates 15 are used to guide the conveyor belt. The transmission element 16 is a pulley drive. The drive element 12 is a motor.
[0026] The gravity sensor 3 is divided into a fixed end and a force-receiving end. The fixed end is fixedly connected to the leg bracket 2, and the force-receiving end is fixedly connected to the conveyor belt frame 11.
[0027] Furthermore, the leg support 2 is also provided with several sets of guide units 4. Each guide unit 4 includes a guide post 41 and a guide sleeve 42. The guide post 41 is fixedly connected to the conveyor belt frame 11, and the guide sleeve 42 is fixedly connected to the leg support 2. The conveyor belt frame 11 can slide against the leg support 2 through the guide post 41 and the guide sleeve 42.
[0028] For details, please refer to Figure 4 Four gravity sensors 3 are respectively installed at the four corners of the conveyor belt frame 11. The four corner gravity sensors 3 are denoted as A, B, C, and D, and a coordinate system is established with point A as the reference. The values of the four sensors are M... A M B M C M D Where M is the mass, so the total mass on the conveyor belt is...
[0029] M 总 =M A +M B +M C +M D ;
[0030] Let the center of gravity be (X, Y), the platform width be W, and the length be L, then
[0031] X = (M B +M C ) / M 总 *W;
[0032] Y = (M D +M C ) / M 总 *L;
[0033] When applying this method, you can determine the product's position on the conveyor line simply by continuously calculating the coordinates of the center of gravity.
[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A weighing conveyor belt capable of detecting the center of gravity, characterized in that: It includes a conveyor belt body (1) and a leg support (2) disposed below the conveyor belt body (1). At least four sets of gravity sensors (3) are also provided between the leg support (2) and the conveyor belt body (1). The conveyor belt body (1) includes a conveyor belt frame (11) and a drive shaft (13) and a driven shaft (14) respectively disposed at both ends of the conveyor belt frame (1). A drive element (12) is also installed on the conveyor belt frame (1). The drive element (12) drives the drive shaft (13) to rotate through a transmission element (16). The drive shaft (13) and the driven shaft (14) are covered with a conveyor belt. The gravity sensor (3) is divided into a fixed end and a force-receiving end. The fixed end is fixedly connected to the leg bracket (2), and the force-receiving end is fixedly connected to the conveyor belt frame (11).
2. A weighing conveyor belt capable of detecting the center of gravity according to claim 1, characterized in that: The leg support (2) is also provided with several sets of guide units (4). Each guide unit (4) includes a guide post (41) and a guide sleeve (42). The guide post (41) is fixedly connected to the conveyor belt frame (11), and the guide sleeve (42) is fixedly connected to the leg support (2). The conveyor belt frame (11) can slide against the leg support (2) through the guide post (41) and the guide sleeve (42).
3. A weighing conveyor belt capable of detecting the center of gravity according to claim 1, characterized in that: The conveyor belt frame (11) also includes at least two sets of guide plates (15), which are respectively located at both ends of the conveyor belt frame (11). The guide plates (15) are located on the inner side of the conveyor belt and are used to guide the conveyor belt.
4. A weighing conveyor belt capable of detecting the center of gravity according to claim 1, characterized in that: There are four gravity sensors (3), which are respectively located at the four corners of the conveyor frame (11). The four corner gravity sensors (3) are denoted as A, B, C and D, and a coordinate system is established with point A.
5. A weighing conveyor belt capable of detecting the center of gravity according to claim 1, characterized in that: The transmission element (16) is a belt drive.
6. A weighing conveyor belt capable of detecting the center of gravity according to claim 1, characterized in that: The driving element (12) is a motor.
7. A weighing conveyor belt capable of detecting the center of gravity according to claim 1, characterized in that: The gravity sensor (3) is an HX711 module.