SU1308488A1 - Vibration moulding device - Google Patents

Abstract

The invention relates to the manufacture of precast concrete and reinforced concrete products and allows for improved product quality. This goal is achieved by the fact that the device for vibropressing is equipped with a cross beam 9, elastic elements 10 for connecting the matrix 8 with the vibrating frame 2, the latter with vertical guides 11 with springs 12 connected to the cross beam 9. for its movement in a vertical plane, and the upper pressing punch 4 is made with a flange 13 located along its perimeter, contacting with the matrix of 8.- 1 sludge. V / (L o 00 00 oo vi v (

Description

This invention relates to the manufacture of precast concrete and reinforced concrete products.

The purpose of the invention is higher product quality.

The drawing shows a device for vibropressing products.

The device for vibropressing comprises a base 1, a vibrating frame 2 installed on the base by means of elastic supports 3, an upper 4 and lower 5 pressing punches in the form of a piston of the corresponding actuating cylinders 6 and 7, a matrix 8, a yoke 9 Matrix 8 with a vibrating frame 2 connected through elastic elements 10 and the vibrating frame 2 is provided with vertical guides 11 with springs 12 connected to crosshead 9 for moving it in a vertical plane. The upper pressing punch 4 is made with located around its perimeter flange 13.

The device for vibropressing works as follows.

The matrix 8 is filled with a material, the vibrators 14 are included in the vibrators 2, the lower punch 5 with the material and the matrix 8 begin to vibrate. The oscillations of the matrix are transmitted through the elastic elements 10 which serve as shock absorbers. characteristics leads to a reduction in friction between the vibrating material and the walls of the matrix, contributing to the compaction of products. Simultaneously or with a slight delay using the upper 6 and lower 7 power cylinders, the upper punch 4 comes into contact with a vibrating powder in the matrix 8 and compacts

Editor I.Shulla Order 1667/14

Compiled by Z. Likhachev Tehred M. Khodanych

Corrector

Circulation 525 Subscription

VNIIPI USSR State Committee

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

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

him. To ensure the separation of the upper punch 4 from the material to be pressed in order to allow free movement of the powder in the matrix 8, the upper punch 4 has, due to the presence of vibration damping springs 12 less than the lower punch 5, an oscillation amplitude. Continuing to compact the material, the upper punch 4 is immersed in the matrix 8 all the way into it by the flange 13, after which, resting against the matrix 8, lowers it down, imitating the upward movement of the lower punch 5 and creating the effect of two-sided pressing. The resilient elements 10 are then compressed. At the end of the vibropressing process, the load from the upper punch is relieved, pressure is applied to the lower punch 5 by the lower power cylinder 7, and the pressed product is pushed out of the matrix 8. The matrix returns to its original position.

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Claims (1)

Invention Formula A device for vibropressing, containing a base, a vibration frame, mounted on the base by elastic supports, upper and lower pressing punches in the form of pistons of power cylinders and a matrix, characterized in that, in order to improve the quality of products, it is equipped with a cross-bar, elastic elements for connecting the matrix with a vibrating frame, the latter - vertical guides with springs connected to the cross-bar for its movement in the vertical plane, and the upper pressing punch is made with a collar located along its perimeter in contact with the die. Proofreader L. Pilipenko