SU1245410A1 - Arrangement for knocking-out cores from cavities of continuous cast parts - Google Patents

Description

"one

The invention relates to casting production, in particular to devices for knocking out rods from the internal cavities of lengthy molded parts, preferably of cylindrical shape with a closed end.

The purpose of the invention is to increase the efficiency of the knockout process.

FIG. 1 shows the proposed installation for knocking the rods out of the cavities of long parts, general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 and 4 - options for the implementation of the working element of the installation.

The installation contains a rigid fixed frame-support 1, on which magnetostrictive transducers 2 and 3 are movably mounted, while the radiating surface of the transducer 2 is located in a plane passing through the center of gravity of the casting 4, and is made in the form of a shaped grip 5 along the profile of the casting 4 The removable working element 6 of the installation is connected with the converter 3 fixed in the plane: perpendicular to the radiating surface of the converter 2 by means of the crank 7. In the lower part of the working element 6 there is a centering stop 8 placed in a spring-loaded support 9 provided with a casing 10. Removable working element 6 can be made in the form of an auger, a short-circuited rotor, etc., placed during molding inside the rod 11 without disturbing the integrity of the latter. For carrying out the knockout products, the installation is equipped with a chute 12 and a transport device 13.

Installation works as follows.

A lengthy casting 4 with a removable working element 6 molded into the rod 11 is fixed in a vertical position, with a hole downwards towards i-. the radial end of the transducer 2 shaped grip 5 and centered

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The working element 6 is relative to the axis of the converter 2 by the stop 8 by placing the latter in the spring-loaded support 9, Crank 7 is connected to the radiating surface of the converter 3, and then to the casting 4 and the working element 6 is supplied by means of the transducers 2 and 3 ultrasonic oscillations of frequency 20-30 kHz. Under the action of oscillations, a vibrating system is cast, the rod is working, the element is in vertical plasticity (transducer 2) and the horizontal plane (transducer-t-. tel 3), while the vibrations transform 3 J) , while the oscillations transform-. The bodies 3 through the crank 7 cause in the volume of the rod 11 preferential torsional and shear loads, which more intensively contribute to the destruction of the latter, than compressive-tensile loads arising under the action of the transducer 2.

As a result of the effect of these loads, active processes of cracking occur, splitting first in small volumes of the rod 11 adjacent closely to the surfaces of the working element 6, and then cracking and destruction in the entire volume of the rod. The knockout products loosen from the cavity of the casting 4, with the help of tray 2 they are transferred to the conveyor 13 and carried to recycling.

After the knockout process has been completed, the operating element b is released from the spring-loaded installation bore 9 and is used again when forming the next rod.

In comparison with the known installation, the proposed installation provides an intensification of the process of knocking out ster- ous; from the lengthy castings with a closed end by 35-60%; mechanization of the process of carrying out the products of rod destruction, repeated use of the working element in the molding of long-length molding rods.

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Compiled by N.Shenitna Editor A.Sabo Tehred V.Kadar Proofreader M.Pojo

Order 3945/8 Circulation 757 Subscription

VNIIGSh of the USSR State Committee

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

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

Claims (1)

Installation for knocking rods from cavities of long cast parts, containing magnetostrictive transducers, mounted with the possibility of movement on a fixed frame, and the radiating surface of one of them is located in a plane passing through the center of gravity of the part, and has the form of shaped capture along the part profile characterized in that, in order to increase the efficiency of the knockout process, it is equipped with a removable working element with a shank, a crank and a spring-loaded support with an emphasis, while the shank is located n in the abutment of the spring-loaded support and connected by means of a clamping pin with a transducer fixed in a plane perpendicular to the radiating surface of another transducer. SU „, .1245410 * 1245410