SU554946A1 - Liquid Metal Dispenser - Google Patents

Description

one

The invention relates to the drinking industry and can be used to mechanize the dosed casting of a liquid metal into molds.

A liquid metal metering device is known, comprising a metering bucket with a hole for a digging and with a chute for spilling metal, a moving mechanism and an electrical contact sensor for immersing the bucket into the liquid metal l.

A disadvantage of the known liquid metal metering device is the need to rotate the bucket around its horizontal axis for collecting and pouring metal. In addition, when the angle of inclination of the drainage chute changes, when the screed rotates during the casting process, the jet's fall path changes, which requires an increase in the casting holes of the casting molds, and because of the location of the drainage chute at the beginning of casting, the liquid metal in the mold is filled high altitude, hit the gating system walls and crush.

A dispenser is known, which consists of a container with a tap and a pipe for intake and draining of -210 liquid. Such a dispenser is the closest in technical essence. However, it is not sufficiently reliable when dispensing liquid metal in sufficiently large volumes.

The purpose of the invention is to increase the reliability of the device when dispensing metals.

For this purpose, in a known liquid metal metering device containing a container for metal, a crane for connecting the container to the atmosphere and a nozzle for collecting and draining metal above the upper end of the nozzle with a gap, the cover is fixed, with the lower edge of the cover located below the upper end of the nozzle.

The drawing shows the dispenser of a liquid metal, a General view, in the section.

It has a spherical container 1 fixed to a vertical rod 2 of a moving mechanism (the moving mechanism is not shown). In the lower part of the tank 1 is installed the pipe 3 for the intake and discharge of metal. Above the top, butt end of 3

the cap 4 is fixed with a gap, the lower edge of which is located below the upper end of the nozzle 3.

The internal cavity of the spherical container 1 through the hole 5 and the valve 6 is connected to the atmosphere. On the bracket 7 mounted on the vertical rod 2 of the movement mechanism. An electrocontact bucket 8 level sensor is mounted in the liquid metal.

Dispenser liquid metal works as follows

The movement mechanism immerses the tank 1 with the valve 6 open in liquid metal before the electrodes of the electrocontact immersion level sensor 8 are closed.

Through pipe 3, container 1 is filled with liquid metal. After that, the valve 6 is closed and the movement mechanism raises the dispenser upwards and moves to the die pouring point.

At the initial moment of movement upward, a part of the metal from the tank 1 is poured out through the pipe 3, forming a discharge in the upper part of the tank. The liquid metal is poured until the pressure difference on the metal mirror at the level of the upper end of the pipe 3 and in the upper part of the container 1 becomes equal to the pressure of the column of liquid metal in the vessel.

At the die casting point, the valve 6 opens, the pressure in the upper part of the tank 1 is equalized with the atmospheric pressure, and the liquid metal is poured into the casting mold.

Claims (2)

1. Authors certificate of the USSR No. 474398, M.C. B 22 D 39 / GS, 1973. 2. A. A. Kats and A. Kontorovich, Measured and Dosing Devices for Clinic-Diagnostic Laboratories, Izd. Meditsina, 1970, p. 48-54. (prototype).