System and method used for intermittently and dynamically weighing and measuring small flow

Abstract

Disclosed are a system and a method used for intermittently and dynamically weighing and measuring small flow. The measuring system comprises a feeding end caching bucket and a discharging end caching bucket which are positioned at a feeding end and a discharging end of an electronic belt scale respectively, high-material-position phototubes and low-material-position phototubes are arranged at different heights of the feeding end caching bucket respectively, the electronic belt scale is provided with a weighing device and a control system, a vertical moving door adjustable in height is arranged at a discharging port of the discharging end caching bucket, and the high-material-position phototubes, the low-material-position phototubes, the electronic belt scale and the vertical moving door are all controlled by the control system of the electronic belt scale. Start-stop of the electronic belt scale can be controlled through information of the high-material-position phototubes and the low-material-position phototubes and the control system, flow of a lower machine can be controlled by adjusting the height of the moving door, intermittent and dynamic weighting and measuring can be realized, and accurate measuring and accurate mixing can be realized without influencing preset flow of front and rear equipment, so that the problem of inaccuracy in measuring by the electronic belt scale under the condition of small flow is solved.

Description

technical field [0001] The invention relates to the technical field of dynamic weighing of materials, in particular to the technical field of dynamic weighing for small flow conditions. Background technique [0002] With the cigarette production process of major tobacco factories paying more and more attention to the loss of raw materials, the statistical requirements for rejects are becoming more and more accurate, coupled with the increase of small-scale test lines, the flow rate of rejects in both small-scale test lines and conventional silk-making lines is increasing. Very small, if a conventional electronic belt scale is used to weigh and measure, the measurement will be inaccurate because the flow rate of the material to be measured is too small and the load on the metering section is too light. Then how to achieve accurate measurement and accurate blending under the condition of small flow rate becomes a difficult problem, and a weighing measurement method that can...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the metered material flow rate is too small, the load on the metering section is too light, and cannot be measured with a conventional electronic belt scale, and to provide an intermittent dynamic weighing metering system for small flow conditions and method

Images