SU840828A1 - Device for regulating water feed into flushing bathes - Google Patents

Description

I

The invention relates to the automatic regulation of non-electric quantities, in particular, to devices for automatically regulating the supply of water to the washing baths, for example, in the manufacture of electroplating and chemical coatings.

A device for regulating the supply of water to the washing baths, containing a concentration meter installed in a common pipe, series-connected switching units according to the number of baths, actuators installed in the water supply lines to the washing baths, and a current sensor are known.

The second output of each switching unit is connected to the corresponding actuator, and the first output of the last switching unit is connected to the first input of the first switching unit, to which the output of the current sensor is also connected. The second outputs of the blocks are connected to the output of the concentrator,

The disadvantage of the known device performance, due to the impossibility of parallel washing of parts simultaneously in two or more baths ...

The closest technical solution to the proposed water jet is a device for regulating the supply of water to the washing baths, containing sensors for loading the baths and, according to the number of baths, elements AND and switching units, the first outputs of which are connected to the corresponding actuators installed in the water supply lines to the washing baths, and the first inputs - to the outlet of the concentrator, installed in the common pipeline, the first inputs of the elements AND are connected to the sensors of the bath loading, and all subsequent inputs to the second outputs of all A previous switching units, the second inputs of which are connected to respective outputs of AND gates G2.

However, this device has a low productivity, since it allows washing parts at a time only in one bath and does not allow parallel-sequential rinsing of parts in several baths.

The purpose of the invention is to increase the productivity of the device due to parallel-sequential washing of parts simultaneously in two or more baths in accordance with the technological process.

The target is achieved by introducing the OR-NOT element and the OR elements and the time relay, the first inputs of which are connected to the outputs of the corresponding elements AND, the second inputs to the output of the concentrator, and the third to the known device for regulating the water supply to the washing baths. the inputs are with the outputs of the corresponding OR elements and with the second inputs of the corresponding switching blocks whose third inputs are connected to the corresponding bath loading sensors, the second inputs of each element AND are connected to the first Exit previous time relays, time relays second outputs coupled to respective inputs of the OR element and to respective inputs of OR-NO element whose output is connected to the input Kontsentratomer.

The drawing shows a functional diagram of the proposed device.

The device contains washing baths C - installed in them sensors 2 bath loads, switching unit Zu1, elements, relay 5, time, elements OR, element 7 OR-NOT, actuators 8 installed in the water supply pipelines to the washing baths, overflow pipes - 9y , for draining water from the baths into the all-discharge pipe 10 with a concentration meter 11 installed in it.

The device works as follows.

In the initial state, the washing baths C - 1 and were not loaded. Signals from sensors of loading of baths 2 -, - 2, on all entrances and exits of blocks 3 - 3

switching on the first inputs and outputs of elements 4 - 4, AND, on all inputs and second outputs of the time relay, as well as on all inputs and outputs of the BCs OR elements and on the inputs of element 7 OR is NOT absent. On the first outputs of the relay 5 -, - time 1Ш and the subsequent inputs of the elements 4 4 I associated with them, as well as

at the output of element 7 OR — there are no signals.

In the case of loading one or more, for example, three wash baths .j (, 2; .... П-2) with parts,

their load sensors generate signals that go to the third inputs of blocks 3 - 3;) .. 2 switches and the first inputs of the elements.-j.H, the remaining inputs of which

signals are sent from the first outputs of the relay 5 - time, having serial numbers per unit less than the numbers connected with the inputs of the indicated elements I. At the output

elements are formed

arriving at the first inputs of the time relay. Moreover, each time relay 5 - 5f is tuned to a certain minimum time.

washing of parts, established by the technological mode for each bath. C-1R. Relays 5 / - Z. time included and start counting the time of the auxiliary parts. Blocks are simultaneously switched on - 3. switching and signals generated at their outputs turn on actuators - 8., j

In this case, the washing baths C--

water is supplied from which it is discharged through overflow pipes 9i4a.B to the drain pipe 10.

When the minimum time has elapsed, nor the washing of parts in one of the baths C, for example, in the rinsing bath, the time relay 5 is activated and at its second output in the inputs of elements 6 and 6JJ4.X1- connected to it (Y OR and element 7 OR NOT , and also at the output of these elements OR, signals connected to them are the second inputs of the blocks, n 3v switching and the third inputs of the relay.) and 5f. At the first output of the time relay, as well as at the output of the element 7 OR-NOT and the input of the concentrator 11 connected to it, the schnals will disappear.

In this turnip 5, stop the countdown, blocks. switching and actuating mechanisms are in this state up to jOKon- 5, and washing of parts in the jar C, and the absence of a signal at the input is the center of the atomo. I 1 allows him to form. The output pulse for the final process of washing parts in the 10th bath C.

If the concentration of the components of contaminated impurities in the water of the washing water I is above a predetermined level, then the water will be supplied until its purity satisfies the specified requirements. When the specified purity of the water at the outlet of the concentrator is reached 11, A 20 pulse is applied to the first inputs of all 3 switch blocks and to the second inputs of all time relays 5y. In this case, the switching unit is turned off, the signal at its output decreases to zero, the actuator Bj turns off to supply water to the industrial bath 1 is closed, and the time relay 5 returns to its initial state and the signal is restored at its 30th output The second output signal disappears. Blocks 3, switches and actuators are turned on, resuming the flow of 35 into the I-J + Q wash baths, and relay 5.t5:., Will continue to count down the time in the indicated baths.

In case of a parallel rinsing of parts in two or more baths, the specified minimum washing time in several, for example, two Ts.x baths will expire at the same time, and then the corresponding to these 5 baths is 5ts. and 5 ,. time, the signals at their first outputs and at the subsequent inputs of the elements n connected to them will work as well as at the outputs of these elements AND and the first inputs of the corresponding time relays connected to them will disappear. The second output relay time. Nor, having a smaller number number in relation to turnip 5 yards, 55, a signal will be generated, which is fed to the inputs of elements 6x - 6 and 6f ШШ and the corresponding input

element 7 or not. In this case, the block i + a. the switch and the actuator 8 + 1 are turned off, stopping the flow of water into the washing bath I to remain in this state until the parts are washed in the bath. Continuing to wash the parts in the RC1 bath with a large serial number will be possible only after the end of the rinsing in the CCh-T bath. Such numbers.

. The use of the proposed device makes it possible to reduce the total time of washing parts in the washing baths of a galvanic or other line by conducting parallel sequential washing of parts simultaneously in two or more baths in accordance with the process and, consequently, increasing the productivity of the device.

Claims (2)

1. USSR author's certificate № - 81027, cl. G 05D P / 00, 1975. 2. USSR author's certificate №651325, cl. .Q 051) 11/08, 1979 Sprotiotyp). .