SU1357237A1 - Arrangement for feeding concrete mix to moulds when making tubular articles - Google Patents

Abstract

The invention relates to devices for feeding concrete mixture to the mold in the manufacture of tubular products. For the purpose of convenience in operation, a truncated cone with a conical bottom 3 is mounted on the bunker using radial brackets 4 with vertical slots 5 and folding grips 6 are mounted. Horizontal pins 12, fixed on the conical bottom 3, move in grooves 5 until reaching the bunker 1 of the outer mold 8, after which the grippers 6 rotate and engage the upper flange 7 of the outer mold. 3 il. (L co-eld ND CO

Description

The invention relates to the production of reinforced concrete tubular products such as rings by the method of vibropressing and can be used in small enterprises where it is not advisable to use large stationary forming installations, in particular, in public service enterprises.

The purpose of the invention is to increase the convenience of operation.

FIG. 1 shows a proposed device for feeding a concrete mix to a mold; in fig. 2 is the same in the molding process; in fig. 3 shows section A-A in FIG. one.

The device for feeding the concrete mixture into the mold contains a bunker 1 in the form of a truncated cone, along the longitudinal axis of which, by means of brackets 2, a vertically movable conical bottom 3 is mounted. On the bunker 1 with help of radial brackets 4 with vertical grooves 5, folding clamps 6 are mounted for coupling with the upper flange 7 of the outer form 8. Lastly, like the core 9, is installed on the pallet 10 with the aid of catchers P. The conical bottom 3 is equipped with horizontal pins 12. On the outer form 8 there are pathogens 13 which are swan.

The device works as follows.

The bunker 1, loaded with concrete, is lowered onto the 11th articulated form 8 and the core 9. When the outer form is reached by 8 brackets-stops 4, the bunker stops, and under the pressure of the weight of the concrete mix, the bottom 3 continues to descend until it locks onto the core 9, forming at the same time the gap in the lower part of the bunker, through which the concrete mix enters the mold.

When moving down the bottom 3, the horizontal pins 12 fixed on it, moving in the slots 5 of the bracket 4, release the folding clamps 6. The latter are lowered and engage the upper flange 7 of the outer form 8. After that, the oscillators 13 oscillate and compress the concrete mixture.

When lifting the bottom 3 horizontal pins 12 repel the folding clamps 6, which release the bunker 1, but this happens not at the initial moment of lifting the bottom 3, but in its immediate vicinity to the bunker. For example, if a large stone gets stuck in the gap, the bunker does not close and cannot be lifted. In this case, it is necessary to remove the object that prevents the bottom from rising. Thus, the bunker always rises only with the bottom closed. After this, the hopper 1 is mixed with an excess of the concrete mix to a new location for the subsequent formation of the product.

Claims (1)

Invention Formula A device for feeding concrete into the mold in the manufacture of tubular products, containing a truncated cone-shaped bunker, along the longitudinal axis of which a vertically movable conical bottom is mounted by means of brackets, characterized in that it is equipped with foldable hooks for adhesion with the upper flange of the form, mounted on the bunker with the help of radial kronschteynov-stops with vertical grooves, and the conical bottom - spaced in the latter and in contact with and with Tammy horizontal pins. FIG. g CPU 2.