Feeder flow automatic control method in tobacco primary processing line

Abstract

The invention discloses a feeder flow automatic control method in a tobacco primary processing line, and belongs to the technical field of automatic control of tobacco primary processing equipment. The feeder flow automatic control method in the tobacco primary processing line measures the change of a material stacking height through a laser distance measuring sensor mounted in the joined place between a feeder and a lifting belt, and adjusts the operation frequency of a bottom belt motor in real time through a PLC and the PID operation of a frequency converter to prevent the phenomenon of nonuniform stacking of materials on the lifting belt and frequent starting / stop of the bottom belt motor, so that the material flow stability is guaranteed. Meanwhile, the material aggregation and smashing phenomenon is reduced; and the feeder flow automatic control method in the tobacco primary processing line has the characteristics of simple mechanism, precise control and high automation degree, and is suitable for various feeders in the tobacco primary processing line.

Description

technical field [0001] The invention relates to an automatic control method for the flow rate of a feeder in a tobacco shred production line, and belongs to the technical field of automatic control of tobacco shredded equipment. Background technique [0002] At present, the feeder of the tobacco shred production line mainly plays the role of connecting production and buffering the flow. The material is conveyed to the slope lifting belt through the bottom belt of the feeder, so as to enter the next process. Usually, a through-beam photoelectric switch is installed at the connection between the feeder and the slope lifting belt to detect the height of material accumulation. When the height of the material is lower than the position of the photoelectric switch, the bottom belt of the feeder continues to run and pushes the material to the joint. Conversely, when the height of the material exceeds the position of the photoelectric switch, the bottom belt of the feeder will stop...

AI Technical Summary

Problems solved by technology

Because the detection method of this material height is too simple, and the speed of the bottom belt is constant, and at the same time, it is affected by the uneven height of the material in the feeder, so that in actual production, the material often accumulates too high, resulting in feeding The machine bottom belt is frequently started and stopped, the height of the material on the slope lifting belt is not evenly laid, and the flow control is unstable

In addition, if the material accumulation is too high, especially for shredded tobacco products, it is easy to cause extrusion agglomeration or crushing

Therefore, the flow control method of the feeder of the tobacco shredded production line in the prior art has seriously affected the production efficiency and product quality of the shredded tobacco

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