A weighing failure alarm device for an electronic scale

Abstract

The invention relates to a weighing failure alarm device for an electronic scale, comprising a scale frame (1), on which a scale body (2) is matched and connected, and a pressure sensor (4) is connected to the scale frame through a connecting piece (5) , the pressure sensor cooperates with the pressure sensing of the scale frame, which is characterized in that: a fixed plate (9) is connected to the scale frame, and a high-sensitivity micro switch (10) is connected to the fixed plate, and a micro switch is provided on the micro switch. The touch rod (10a) below the sensor, the micro switch is connected to the fault indication box (13) through a wire (16), and a fault indicator light (15) is provided on the fault indication box. Advantages of the present invention: the device can timely detect the failure of weighing and measuring during the weighing process of the electronic scale, and can effectively prevent the proportion error of raw material ingredients. It has the advantages of simple structure, convenient maintenance, low cost, sensitive response and good use effect Features.

Description

technical field [0001] The invention relates to the field of weighing in glass production, in particular to a weighing failure alarm device for an electronic scale. Background technique [0002] Raw material production is an important link in the glass production process and the source of glass quality control. The quality of raw material production is usually mainly adjusted by controlling the chemical oxygen demand value COD. One of the three major elements of controlling the COD value is accurate weighing of ingredients, so it is very important to ensure the normal operation of the electronic scale weighing device. The electronic scale is the key equipment for batching. When the fixing bolt of the sub-scale sensor breaks, the weighing will be inaccurate, which will affect the accuracy of the batching ingredients. If the alarm is not given, the batching will cause a batching quality accident. In turn, it affects the melting quality of raw materials entering the kiln, res...

AI Technical Summary

Problems solved by technology

The electronic scale is the key equipment for batching. When the fixing bolt of the sensor of the sub-scale breaks, the weighing will be inaccurate, which will affect the accuracy of the ingredients. If the alarm is not given and the batching is continued, it will cause a batching quality accident.

In turn, it will affect the melting quality of raw materials entering the furnace, resulting in glass quality accidents and output loss

[0003] At the beginning of the design and conception of this alarm device, after extensive searching by the applicant of this patent, it is known that there are no mainstream brands of pressure weighing sensors such as OMEGA, Mettler-Toledo, HBM, and Vishay TEDEA in the domestic market: When the weighing is inaccurate and exceeds the tolerance value, it can alarm this function; basically there is no self-test and error alarm output function, and the relevant design and research units have no safety protection software programs for this aspect.

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