Weighing apparatus and method for liquid crystal display glass raw materials

Abstract

The invention relates to a high-accuracy weighing device and method for raw materials for liquid crystal display glass. And the device comprises a high accuracy electric scale for accurately weighing smaller numbers of raw materials and an electric scale for weighing larger numbers of raw materials, where the material outlet of the former is connected through the lower paddle with the material inlet of the latter, and the material outlet of the latter is connected with a material mixer; firstly the smaller numbers of raw materials are added in sequence to the high accuracy electronic scale for accurate weighing and after this, they enter through the other electronic scale into the material mixer, thus able to assure the weighing accuracy of the smaller numbers of raw materials and further improve the preparing quality of the auxiliary materials.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display glass production, in particular to a weighing device and a weighing method for liquid crystal display glass raw materials for high-precision weighing of liquid crystal display glass raw materials. Background technique [0002] In the liquid crystal display glass production process, the weighing accuracy of raw materials is very high. The weighing accuracy mentioned here refers to the accuracy of the actual value of the weighed raw materials entering the mixer. However, for raw materials with a small amount of ingredients (weighing ≤ 15kg each time), it is difficult to ensure high weighing accuracy (weighing accuracy greater than 1 / 1000) according to the usual weighing method. However, these raw materials play a role in clarifying, homogenizing and changing the characteristics of glass in the melting of glass. The accuracy of its weighing directly affects the melting and performance...

AI Technical Summary

Problems solved by technology

This method is not conducive to the accuracy assurance of less raw materials, and will easily lead to a decrease in weighing accuracy. The reasons are as follows

[0004] 1. As we all know, when the weighing quantity of a certain raw material is less than 15kg, and its accuracy is required to be greater than 1 / 1000 or higher, the minimum scale of the electronic scale is generally less than 5g, so that the weighing accuracy of the electronic scale is easily affected by ingredients. Due to the influence of the airflow and air pressure generated by the mixer during the process, the weighing value will fluctuate, thus affecting the accuracy of raw material weighing

[0005] 2. After the weighing is completed, the raw materials will more or less adhere to the conveying pipeline when they are discharged into the mixer. For raw materials with a weighing quantity less than 15kg and a small amount, less adhesion will easily cause Fluctuations in Weighing Accuracy

[0006] These problems will cause the weighing accuracy of less raw materials to meet the requirements of the batching process, resulting in fluctuations in the composition of small amounts of raw materials (weighing quantity less than 15kg) in each batch of batches, making the homogenization and clarification of the glass melting change. Poor, in severe cases, the bubbles in the glass will increase, reducing the yield of glass

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