SU416423A1 - - Google Patents

Description

one

The invention relates to the light industry, in particular, to the animal and merit cell devices.

A device is known for controlling a malfunction of a single-belt automatic machine. Auto-stop: m, which contains a group of sensors, a display board, an electrical stop, and an electronic control circuit, which has thyratron amplifiers with relays in anode circuits. In addition, the device contains a switching relay and a power converter.

The purpose of the invention is to provide the possibility of detecting a fault fault.

This is achieved by the fact that the device supplies a control chain, for example a parallel QC-chain, and a switching circuit electrically connected through a switching relay. And a control circuit with an electronic control circuit, the RC chain connected to the grids of each of the amplifiers of the electronic control circuit, and the switching circuit is connected to a stop electromagnet and an educational board.

FIG. 1 shows a block diagram of the proposed device; in fig. 2 is a basic electronic control circuit and switching circuit; in fig. 3 - basic electrical diagram of the indicator board; in fig. 4 - iintsipialnaya electrical circuit included the engine and the P | p Intsipalnaya electrical circuit to turn on the electric brake start.

The electronic control circuit 1 is electrically connected with sensors 2, 2, 2 ... of monitoring the technological failure of the weaving machine, switching circuit 3 operating with technical failure of the machine, light viewing board 4, brake start electromagnet 5 and circuit 6.

The power to circuit 1 is supplied via control circuit 8.

Table 4 is additionally associated with switching circuit 3.

Scheme 1 and chain 8 interlocked with scheme 6,

Circuit 1 consists of amplifiers built on 9-11 thyratrons, whose loads are the windings of the relay IP, 2P, SP ...

The input of each amplifier is connected to the voltage supply made up by resistors 12-17.

Resistors 12, 14 and 16 through sensors 2, 2, 2 ...., resistor 18, chain 8 and microswitch 19 are connected to a power source. The input of one of the amplifiers, for example, with the thyratron 9, is connected via a resistor 20, to a clock 4P-1 with a microswitch 19 connected to the chain 8.

The 4P switching relay coil is connected to the power source via the disconnecting starter 21, the input and the composition of the circuit 6.

The positive pole of circuit 3 is connected to a power supply pin through a 4P-pin.

This circuit consists of two time relays, built on 22 p 23 tiratrons, whose load is, as a matter of fact, the 5P and 6P coils of the relay. The cathode of thiratraton 22 is connected to the minus of the contact circuit 6P-1.

The grid of the tiratron 22 is cutted by a combination of 24 plus 25 circuits. The capacitor 26 is connected by one output to the cathode of the Tiratron 22, and the other through a diode 27 n. The resistor 25 is connected to the PLY: the CM circuit.

Resistor 28 shuptiruet capacitor 29 through the contact 6P-2.

A series-connected thyratron 2o and a 6P relay coil with a capacitor 29 connected in parallel to its lowest terminal are connected to the positive pole of the circuit via resistor 30, 61-1 n.

A circuit consisting of a series connected resistor 31 of terminal 6P-3 is connected in parallel with the capacitor 29.

In scheme 6, the coil of the electromagnetic actuator 21, luokawa "ass 32 and stop 33 are connected in series. Co1pact P-2 blocks the start button 32.

The chain 8 (Fig. 2) is removed, eg 1g, from the co-detector 34 and the resistor 35, which is superimposed through the contact 4P-2 of the commutator p | barely 4P.

The parameters of the chain are selected depending on the electrical and temporal characteristics, nrn | YciipoAcTBe-changeable output relays of amplifiers and electromagnet of the start of brake 5. The nominal value of the resistor 35 is chosen based on the current retained through the relay coil and the thyratron passing the derived signal through the chain; 8 is slightly larger than the release current of the relay.

Eat: the capacitor bone 34 is selected from the inequality condition

 + 4)

where t is the lead time of the chain 8 derivative of the amplified signal;

R - time of operation of one nz relay IP, 2Р ЗР ...;

m is the response time of the brake start electromagnet 5.

t:

where ZR is the total weight of the load

control chain.

The action of the corresponding channel by the electropic circuit 1 begins at the receipt of one of its inputs from any of the sensors 2, 2, 2 ... when the engine is switched on 7.

Chain 8 limits in time the range of sensitivity of circuit 1, not allowing the passage of positive signals but the expiration of the time of expiry of the derivative of the amplified signal.

Information about comparing nerve-prone technical injuries is not transmitted through the output channel of the circuits) 1 on the display 4. At the same time, the command to the brake start electromagnet 5 is transmitted to the brake electromagnet 5, its instantaneous deceleration of the weaving station when the engine is turned on when the engine is turned on.

Circuit 6 When the engine 7 is turned off, its blocking affects circuit 1, launching circuit 7 through it, which, however, its output channel is not flashing on the board 4.

At the same time, the blocking of the circuit 6 acts on the circuit 8, disconnecting the resistor 35.

In this case, the circuit 1, on the side of the blocking, has a signal for one: M (From the CBOIHX inputs, it sends through only the active force of the SNG, which doesn’t allow the ira command of the ira electromagnet 5) to start the brake, which triggers the trigger mechanism. The braking of the nrn machine by accidentally turning off the electric motor nln when the power switch is turned on for technical failure of the machine to move.

The device works as follows.

During the work of the lathe, the starter 21 is turned on and its co-tact 11-1 in the power supply of the 4P switching relay kugugi at a time: whip. At the same time, the zero point of the power source is connected via pin 4P-2 to circuit 1.

Circulation on circuit 3 is not necessary, since the co-tact 4P-1 is broken.

When closing any of the sensors 2, 2, 2 ...., for example 2, the positive signal goes to the grid of the thyratron 9.

In the interval, the anode-cathode of the thyratron 9 is ignited by so-called thru;

Over time, an increased current flows through the value, due to the skipping of the 8th derivative of the amplified signal during the transition process and after the ignition of the thyratron. This current is somewhat greater than the current of operation of the IP relay, since the IP relay operates.

After the time t, the current through the coil of the relay IP decreases, and its limit value will be determined by Ohm's law, taking into account only the active component of the control circuit (in this case, resistor 35). This current remains greater than the release current of the IP relay, which, by its contact 1P-1, turns on the supply circuit of the lamp 39, indicating the corresponding cause of the machine’s technological failure on the board 4, and contactO (M 1P-2 this relay turns on the power supply circuit of the electromagnet coil 5 disengaging the clutch machine with a drive and starting the braking device.

After the ostaev machine, it is possible to close other contact sensors (2, 2 ....) as a result of the servant touching / or sagging. OiTiK time, during which the warbler passes the derivative of the signal, is selected according to the sum of Time (, 1 - | / h) and is therefore very limited, then practically, the false signals from other sensors arrive at the circuit input Alarms have already expired.

When a direct current is flowing through the rheistor 35 of the precious point 8, a significant part of the voltage of the source of the voltage drops on it. At the same time, even with the closure of the contact sensors 2, 1 .... in the grid circuits of the thyratrons 10, 11, the radiation is in their electrodes

becomes lower than the ignition potential, which eliminates the possibility of false signals.

Pto NgIO the main light signal pia of the board 4 informs the weaver about the presence of one or another of the technical nolopic faults (loss of weft or warp, operating time of a given khek, etc .; i ..). He ate a step 1 of this clause; the causes of a weaver click on a machine cut-off, pressing the brake and engaging the npiH clutch.

A special cam, RC,; on the axis of the TRUCT 1N, acts on the microswitch 19. open its contact, after which the transponder 9 goes out, the IP relay and the remote control 5 are turned off, and the warning lamp 36 goes off. The machine starts working again.

Aialogich but ONISAINO.MU of the origin of the work scheme 1 11ostu.n. the primary signal from sensors 2, 2 ....

A pivotal call signal to the stalk of a technical hierographer to eliminate the technical exhaustion of the weaver gaggle (races, mechanical power, etc.) is given by hand weaver by pressing the button 33.

In the case of electrical circuit wiring or When the electrolyte is overloaded, this signal is sent automatically, for example, when the contact of the thermal relay 37 is opened.

The starter 23 simultaneously with the stopping of the electric motor. BYPASS P-1 contacts include a 4P switching relay.

Its 4P-2 contact disconnects the resistor 35 in the chain 8, included in the circuit 1 power circuit, and the 4P-1 terminal turns on the power to 3. The 4P-3 terminal plots the board 4 to work in a blinking: 1 mode.

A. At the time when the power supply is supplied, circuit 3 of the co-tact 4P-1 connects the grid of one of the thyratrons (in this case, ti7171c 9) with the positive pole of the power source. When a thyratron is ignited, a capacitor 34 and an IP relay coil pass through only one of its amplified signals, as a result of which the relay will be turned on.

The IP, which by contact 1P-2, includes the power supply of the electromagnet 5, which activates the mechanic1 o. :: device |) O1 | for the divorce of the scene with simultaneous f.cryback.

Manual otvodka, zavsha with this .mekh.nicheskom device :, move from position "work to position" then.rmoz.

When the time t tiratron 9 expires, the power is turned off and the IP relay is turned off.

The locking of an electric motor with a machine brake allows the newer to execute .and.Pn) at the expense of the economy spent on the development of unprofitable threads.

The switching circuit, signaling the technical non-correctness of the machine, received power through the contact 4P-1, works

trace oi; 1nm image m.

Immediately the power was supplied to the circuit, and the deposition on the grid of the thyratron 22 is not enough to ignite it, since when charging the capacitor 26 a portion of the antenna

falls on resistor 25.

After a time that has elapsed in a constant time value, the voltage on the grid of tiratron 22 stanoshggshch sufficient to ignite. This causes the 5P relay to work, with its contact 5P-1 the charge value of the capacitor 29 through the resistor 30.

After a time determined by the constant time, the capacitor 29 is discharged through a circuit consisting of sequentially connected thyratron 23 and a 6P relay coil. Relay 6P, on1OCH1 | 6P-2 and 6P-3, having their contact, release capacitors 26 and 29 from their charge, and contact 6P-I extinguishes the thyratron

22 and turns off the 5P relay.

Further, the cycle is repeated, the charging of the codensor 26 starts again.

As can be seen from the operation of the circuit, operating in auto-oscillation mode, the 5P relay periodically

It turns on and off, and its 5P-2 and BR-3 contacts alternately light 4 lamps of different colors on the display.

50

Subject invention

1. A device for controlling a failure of a weaving machine with a simultaneous auto-stop, containing sensors, an indication board, electromagnet stop, an electronic circuit controllable, has thyratron amplifiers with an anode relay, a switching relay and a power converter; It is because it is designed to make it possible to detect the primary cause of efficiency, it is equipped with a control circuit, a parallel parallel RC network key, and a switching circuit electrically connected via a switching relay and channeling guide chain with electron | Ron 1yui control circuit schrichem RC-chain connected to each of the thyratron grids amplifiers electro-constant control circuit.

2. A device according to claim 1, characterized in that the switching circuit is connected to a stop electromagnet and an indication board.

R

P-lUCl

nineteen

u

a food

I

33 -32

Y7

G-i g /