Automatic uncoiler and roller shearing machine speed matching control system

Abstract

The invention discloses an automatic uncoiler and roller shearing machine speed matching control system which comprises a shearing motor controller, an uncoiling motor controller, a plurality of photoelectric switch sensors and an adder. The shearing motor controller is used for controlling a shearing motor of a shearing machine and has a speed feedback function, the uncoiling motor controller is used for controlling an uncoiling motor of an uncoiler, the photoelectric switch sensors are vertically mounted on the inner wall of a loop pit at intervals, and the adder is connected with output ends of the photoelectric switch sensors; a D / A (digital / analog) conversion circuit is connected with a speed feedback signal output end of the shearing motor controller, and an output end of the D / A conversion circuit is connected with input ends of the photoelectric switch sensors. The automatic uncoiler and roller shearing machine speed matching control system has the advantages that the automatic uncoiler and roller shearing machine speed matching control system is simple in structure, reasonable in design, convenient to implement, popularize and utilize, low in cost and high in adjustment precision, reliability and practicality, the rejection rate and the strip longitudinal shearing production cost can be reduced, the production efficiency can be obviously improved, and a good service effect can be realized.

Description

technical field [0001] The invention relates to the technical field of automation of a strip slitting production line, in particular to an automatic control system for speed matching of an uncoiler and a rolling shear. Background technique [0002] At present, in the field of strip slitting, the shearing speed of the shearing machine is usually taken as the working speed of the slitting unit, and the unwinding speed of the uncoiler is required to be synchronized with the shearing machine, which brings about a problem: at the shearing machine speed Under the same condition, the coil of the uncoiler will become smaller and smaller, and the speed of uncoiler must be increased accordingly. The previous method was to manually observe the height of the material in the looper pit and manually adjust the speed of the uncoiler. This method has no problem at low speeds (≤60m / min), but at high speeds it often causes the material to drag due to the lag of human response. Bottom (fast u...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of strip slitting, the shearing speed of the shearing machine is usually taken as the working speed of the slitting unit, and the unwinding speed of the uncoiler is required to be synchronized with the shearing machine, which brings about a problem: at the shearing machine speed Under the same condition, the coil of the uncoiler will become smaller and smaller, and the speed of uncoiler must be increased accordingly

Obviously, this speed matching method with a low degree of automation is no longer suitable for today's increasingly automated

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