SU1359069A2 - Arrangement for metering molten metal - Google Patents

Abstract

The invention relates to foundry and can be used for casting metal into molds on a conveyor. The purpose of the invention is to increase the accuracy of dosing. At the command of the control device 9, the actuator 10 raises the cup 11 upwards. At the same time, the metal collected by the glass 11 partially flows into the chamber 1. When the glass 11 reaches the extreme upper position, the stopper 4 closes the opening 3. To receive a dose of liquid metal through the air duct 6, compressed air is fed into the cavity of the chamber 1, which displaces the liquid metal from it 2. If a metal leaks out of chamber 1 when metal leaks through the leaks formed during operation in the area of bore 3 and stopper 4, this does not affect the dosing accuracy, since the metal flows into cup 11, minutes attached to the same lever 7, as the camera 1. When reaching a predetermined dose quantity control device 9 gives a signal to stop supply of compressed air. 1 il. (L J-- /////// A //////////// / / II SLE eaten with about O5 with 1H

Description

The invention relates to foundry and can be used for casting metal into molds on a conveyor.

The purpose of the invention is to increase the dosing accuracy.

 The drawing schematically shows a metering device.

The device contains a metering chamber 1 with a drain metaploprovod 2 fixed on its own, inserted at one end into its cavity, equipped with a filling opening 3, equipped with a stopper 4. Chamber 1 is placed in a 1B to 5 bath with liquid metal, equipped with an air duct 6 and is connected weight lever 7 with a weight measuring sensor 8. The latter is connected to the control

To supply a dose of liquid metal through the air duct 6, compressed air is supplied to the cavity of chamber 1, which displaces the liquid metal from it through the metal duct 2.

The resulting change in the buoyancy force of the liquid metal in the bath 5, acting on the dosing chamber 1, is transmitted by the lever 7 to the sensor 8, the signal from which is fed to the control device

If metal leaks out of chamber 1 when metal leaks through the leaks formed during operation in the zone of hole 3 and since pore 4, this does not affect the dosing accuracy, since the metal flows into cup 11, which is attached to

the device 9 of the drive 10, moving 20 to the same lever 7 as the camera 1.

Cup 11, enclosing the detection-dosing chamber 1 and rigidly attached to the stopper 4..

The device works as follows.

If it is necessary to dose a liquid metal at the command of the control device 9, the actuator 10 lowers the cup 11 with the stopper 4 below the liquid metal mirror in the bath 5, the metal fills the cup 11 and through the open hole 3 enters the metering chamber 1, filling it to the level of the metal mirror in bath 5.

At the command of the control device 9, the actuator 10 raises the cup 11 upwards. At the same time, the metal collected by the glass 11 partially flows into the chamber 1, and partly into the bath 5.

When the glass 11 reaches the extreme upper position, the stopper 4 blocks the opening 3,

Compiled by T. Chirkunova Editor M. Trvtin Tehred M. Didyk Proofreader L. Pilipenko

™ ™ - - - - - va

Order 6103/14 Circulation 741 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

In order to supply a dose of liquid metal through an air duct 6, compressed air is fed into the cavity of chamber 1, which displaces the liquid metal from it through a meta line 2.

The resulting change in the pushing force of the liquid metal in the bath 5, acting on the dosing chamber 1, is transmitted by the lever 7 to the sensor 8, the signal from which is fed to the control device 9

If a metal leaks out of chamber 1 when metal leaks through leaks formed during operation in the area of aperture 3 and stopper 4, this does not affect the metering accuracy, since the metal flows into cup 11, which is attached to

When the set dose value has been reached, the control device 9 sends a signal to stop the supply of compressed air and to command the lowering of the cup 11 to replenish the dosing chamber 1 with liquid metal. The dosing cycle is then repeated.

The implementation of the device with the cup 11 eliminates the effect of the leakage of the locking of the stopper 4 on the dosing accuracy and thereby increases it.

Formula of invention

35

A device for dispensing liquid metal according to ed. St. № 839685, about t - lichasch. In order to increase the accuracy of dosing, it is equipped with a glass that covers the dosing chamber outside and is rigidly connected to the stopper.

Claims (1)

Claim A device for dispensing liquid metal on the author. St. № 839685, about t lichasch. Due to the fact that, in order to increase the accuracy of dosing, it is equipped with a glass that covers the outside of the dosing chamber and is rigidly connected with the stopper.