SU612267A1 - Workpiece delivery monitoring device - Google Patents

Description

one

The invention relates to the technical means of automated control systems and can be used to identify moving objects, in particular, to detect the fact of the issuance of billets heated in the rolling mills.

A device for counting moving objects, containing sensors with an amplifier for controlling a counter with the aid of electromagnetic relays and an auxiliary relay 1, is known.

This device is designed to count moving single objects and is not suitable for counting objects in the absence of a gap between them.

The closest to the proposed by the technical entity to the proposed is a device for monitoring the finishes for cooking, containing two sensors, the distance between the points of sight of which are greater than the width of one blank, but less than its doubled width, the first sensor is connected to the first inputs of the first and second elements AND and through the inverter - with the first

the inputs of the third and fourth elements And, the output of the first element And connected through the delay element to the second inputs BiXJporo and the fourth elements And, and through. trigger - to the second input of the third element And.

This device provides identification of produced blanks, following both with and without clearance.

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The disadvantage of the device is low accuracy in the cases of simultaneous delivery of two blanks with a gap between them smaller than the width of one blanks. In similar situations with the arrival of the first pulse from the second sensor, due to the presence of a gap between the workpieces, the first sensor is not released. whose third element is allowed to trigger and an impulse appears at its output

0 testimonious about more than one workpiece.

The occurrence of a second impulse from the first pulse, caused by the passage of a second blank in the ego zone, leads

Claims (1)

actuation of the first element AND at the time of exposure of both data, which is inevitable if two blanks are followed with a clearance smaller than the width of the blanks. Through the first element And nrnskho um flip trigger and start the delay. By time- When the strobe arrives from the delay line, the dead element is allowed by a single cars stream coming from the inverter output, since the second blank has already passed the sight zone of the first sensor and a signal appears at the output indicating that two blanks have appeared. Thus, with actual performance; two blanks the device signals more than three. The aim of the invention is to improve the accuracy of the device. To do this, a shaper-pulses are introduced into the proposed device, the input of which is connected to the second sensor and the second input of the first element I, and the output to the third input of the third element I. The drawing shows the functional diagram of the device .. The device contains the first sensor i connected to The first inputs of the first element And 2. and the second element And 3 and through the inverter 4, with the first inputs of the third element And B and the fourth element And 6, the output of the first element And 2 is connected through the delay element 7 to the second inputs of the second element And 3 andthe fourth element of the I-6 element and, via trigger 8, to the second input of the third element I 5, the former 9 pulses, the input of which is connected to the second sensor 1O and the second input of the first element I 2, and the output to the third input of the third element 5. The device operates as follows. In the initial state, the trigger 8 is set. When issuing one workpiece, sensors 1, 10 are alternately lit. At the moment when the sensor is illuminated to the date, the date 1 is not illuminated, and the element 5 is fed through an inverter 4 with a Lopia signal. On the falling edge of the signal coming from sensor 1O, a pulse appears at the output of imaging unit 9, leading to an 8nta 2 actuator, and the output of which indicates that only one workpiece is removed from the furnace. In the case of removal of two or more workpieces simultaneously from the furnace Sensor 1 at the time the sensor 10 is triggered lights up element 5 is prohibited, and at the output of element 2, a potential appears that triggers delay element 7 and flips trigger 8, the blue resolution from element 2 in this layer. At a time interval equal to the time of passage of one billet-cherv zo. at the sight of the sensor of the delay line, the pulse which gates elements 3 and 6 is released. In the case of the output of two furnaces from the furnace at the same time, at the time of gating, sensor 1 is not illuminated and element 6 is allowed to operate, at its output a pulse is shown indicating furnaces of two blanks; In the case of three blanks simultaneously (which leads to the need for intervention by the operating personnel, manual unrolling), the photodata is illuminated (one third of the workpiece has not yet passed the sensor sighting zone) and element 3 is allowed a pulse appears at its exit at the time of gating, indicating that more than two blanks are being removed from the furnace, simultaneously, the device can be brought back to its initial state, for example, by using a pulse coming from the External Device and indicating reception of the signal blanks on any output. Thus, the proposed device makes it possible to eliminate the error when it is determined, the scientific research institute of the fact of the workpieces. The invention is a device for monitoring a billet containing two sensors, the distance between the sight points of which is larger than one width of the workpiece, but less than its double width, the perm sensor is connected to the first inputs of the first and second elements I, and through an inverter the first inputs of the third and fourth elements are And, the output of the first element And is connected through the delay element to the second inputs of the second and fourth elements And, through the trigger - IKO to the second input of the third element And, indicated by the fact that, in order to increase the accuracy of the device includes a pulse former, the input of which is connected to the second sensor and the second of the first element I, and the output to the third input of the third element I, Information sources taken into account during the examination: 1, Copyright 54684, q, q About M 7 / O2, 1937; 2, Copyright Certificate JsV 497611, cl. 06 M 7 / O2, 1974. D; -6 /. :; / iHi f-7 four  five rtir J ill t-lh  f-t, - / ,, f vV-; f / M