Electronic weighing instrument on-line adjustment and calibration system and adjustment and calibration method

Abstract

The invention provides an electronic weighing instrument on-line adjustment and calibration system, comprising an operation control module, a pressing control module and a pressing arm unit. The operation control module is in wireless connection with a weighing instrument electric control cabinet to generate a weighing instrument zero comparison order and is used for obtaining an address number of the pressing head of the weighing instrument and a pressure value, configuring that the load of the pressing arm is transmitted to the pressing control module, and obtaining the pressure-bearing values of various weighing instrument heads corresponding to various loads from the pressing module so as to determine the correction angular difference coefficient and returning the feedback of the correction result to the weighing instrument control cabinet; the pressing control module is used for performing telescopic control on the pressing arms of the pressing arm unit, and when the load of the pressing arm is equal to the downward pressure of the measurement pressing arm of the pressing arm unit, the pressing arm stops telescopic movement; the pressing arm unit comprises at least one pressing arm and a pressure sensor and a gravity sensor which are installed on the pressing arm, the pressure sensor is used for measuring the applied force on the pressing arm and the gravity sensor is used for measuring the included angle alpha between a downward pressing direction and a gravity direction and the downward pressure of the pressing arm is the product of the applied pressure and the cos alpha.

Description

technical field [0001] The invention relates to the field of verification and adjustment of electronic weighing instruments, and more specifically, relates to an electronic weighing instrument online adjustment system and an adjustment method thereof. Background technique [0002] The electronic weighing instrument includes a weighing instrument pressure head arranged on the electronic weighing instrument scale body and a weighing instrument electric control box 1 ( figure 2 Shown), at present, the adjustment of large electronic scales often adopts the traditional way of manually hoisting weights to press the angle, generally by using a crane for hoisting, ballasting and empty load. During the weight hoisting and ballasting process, the requirements for driving operation are very high, so it is inevitable that the impact and wear on the scale surface will occur, resulting in potential safety hazards; at the same time, it is difficult to ensure the complete uniformity of the ...

AI Technical Summary

Problems solved by technology

During the weight hoisting and ballasting process, the requirements for driving operation are very high, so it is inevitable that the impact and wear on the scale surface will occur, resulting in potential safety hazards; at the same time, it is difficult to ensure the complete uniformity of the pressure angle position during ballasting, thus affecting the adjustment accuracy; In the adjustment process, it needs to go through steps such as weight consignment, driving operation and weighing instrument calibration. In addition to occupying driving resources, it also needs to be equipped with more than 4 people, which is labor-intensive, and the adjustment time is often 2-3 hours. , for weighing instruments on production lines such as steel coil scales, too long adjustment time will inevitably affect the normal production of the production line

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