Electronic weighing device future development trend

In recent years, the customer's demand for electronic weighing instruments and the development at home and abroad, the overall development trend of electronic weighing instruments should be miniaturization, modularization, integration, and intelligence; its technical performance tends to be high in rate, high in accuracy, and high in stability. The reliability is high; its function tends to be the "intelligent" function that weighs both the control information and the non-control information; its application performance tends to be comprehensive and combined.

1. Modularization For large or super large-scale carrier structures, such as large static and dynamic electronic truck scales, modules of several lengths of standard structures have been introduced, and new varieties and specifications have been created through split assembly. Take three standard modules of the same width as (5, 6, and 7) m long, for example, from a single block, two blocks, three blocks to four blocks, and combine them into 22 types with a length of (5 to 28) meters. Specifications of split body structure. Of course, in actual applications, according to the needs of users in various industries, more than 10 kinds of commonly used standard specifications can be selected. This modular split scale structure not only improves the versatility, interchangeability and reliability of the product, but also greatly improves the production efficiency and product quality. At the same time, it also reduced costs and enhanced the company's market competitiveness.

2. Small size, small height, light weight, ie, small, thin and light. In recent years, the newly developed electronic platform scale structure fully reflects the development direction of small and light. For low-capacity electronic platform scales and electronic axle scales, thin or ultra-thin circular load cells can be directly embedded into the bottom surface of the steel or aluminum plate and the same outside diameter of the load cell to form a low-profile scale. Body structure, the number and location of the load cell are determined by the rated load of the scale and the mechanical requirements. The steel plate or aluminum plate is the platform of the scale body. The load cell is both a sensing element and a bearing fulcrum, which greatly simplifies the structure of the scale body and reduces the active connection links. It not only reduces costs, but also improves stability and reliability. Sex. For medium- or large-capacity electronic platform scales and electronic floor scales, thin-walled steels with square or rectangular closed cross-sections have been introduced, and the parallel-rowed queues have been welded into a whole bamboo row-structured scale body, and four load cells have been In the incisions at the two ends of the outermost two thin-wall steels, the fixed support mounted on the load-bearing point of the load cell is the bearing fulcrum of the scale body, which not only reduces the load-bearing force transmission mechanism, but also saves the height of the scale body. It is a scale body structure with promising development. For large electronic platform scales, the finite element method can be used for the calculation of iso-strength and stiffness, and for materials with large bending stiffness and light corrugated sandwich plates.

3. The intelligent electronic weighing instrument's weighing display controller is combined with the electronic computer to utilize the intelligence of the electronic computer to increase the function of the weighing display controller. Based on the original functions, the electronic weighing instrument is added with functions such as reasoning, judgment, self-diagnosis, self-adaptation, self-organization, etc. This is the electronic weighing instrument using the computerized weighing display controller and the intelligent weighing display control on the market today. The fundamental difference between electronic scales.

4. Integration Electronic scales for certain types and structures, such as small electronic platform scales, special scales, portable static and dynamic electronic wheel axle scales, static and dynamic electronic track scales, etc., can achieve scale body and load cell, rails and weighing Sensor, rail scale body and railway line integration.

The portable static and dynamic electronic wheel axle scales such as the scale body and the load cell are made of hard aluminum alloy thick plates. The structural principle is the aluminum alloy plate strengthened by solution heat treatment, or the formation of four cantilever-type load cells by drilling and milling at four corners; or milling a plurality of symmetrical blind holes on the bottom surface of the aluminum alloy plate. And blind slots form an integral shear beam load cell. This allows the scale body and the load cell to be combined into one, ie the aluminum alloy plate is both a scale body and a large plate load cell. Taking the 10t portable dynamic electronic axle scale of the latter structure as an example, the size thereof is 720 mm×550 mm×32 mm and the weight is approximately 23 kg.

5. The development law of comprehensive electronic weighing technology is to continuously strengthen basic research and expand its application, expand new technology fields, infiltrate into neighboring disciplines and industries, and integrate various technologies to solve weighing and weighing, automatic control, and information processing. problem. For example, in the flow measurement profession, if a standard large flow measurement system is built according to the traditional theory and method, the price is quite expensive. If the weighing method, mass flow method, is used, as long as the measurement of weight and time is accurate, the measurement problem of large flow rate is solved. For some commercial electronic pricing scales, only weighing, pricing, display, and printing functions are far from enough. Modern commercial systems also require it to provide various sales information and integrate weighing and management automation. Heavy, pricing, inventory, sales management integration, management automation. This requires that electronic pricing scales can be networked with electronic computers and that weighing systems and computer systems form a complete integrated control system.

6.Combination In the industrial weighing measurement process or process flow, many weighing and measuring systems also require combinability, that is, the measurement range can be arbitrarily set; the hardware can make certain adjustments according to certain working conditions and environment The hardware function is developed in the direction of software; the software can be modified and extended according to a certain program; input and output data and instructions can use different languages ​​and bar codes, and can communicate with external control and data processing equipment.