RU1823816C - Method of manufacture of tubular products from concrete mixes - Google Patents

Abstract

Usage: the manufacture of tubular products from concrete mixtures. SUMMARY OF THE INVENTION: concrete mixture is supplied between the walls of the mold and the pourer by means of a concrete duct through windows of a concrete duct evenly spaced along the length of the concrete, while tensioning the reinforcement. 5 ill.

Description

The invention relates to the field of production of precast and reinforced concrete products.

The purpose of the invention is to improve the quality of products due to the uniform distribution of concrete mix.

In FIG. 1 shows the installation before loading the concrete mixture: figure 2 - installation after entering the core in the mold; in Fig.Z - section aa in Fig, 2; figure 4 - node I in figure 2; figure 5 is a section bB in Fig.Z.

A device for manufacturing tubular products from concrete mixtures consists of a stand 1 mounted on a base 2, Form 3 with bandages 4 mounted on a stand 1. On the form 3 at the ends there are butt 5 and apex 6 heads for tensioning and releasing the reinforcement.

On the base 2, there is a self-propelled paver with a concrete pump 7, to which a void 8 is connected, which is a conical body 9 with windows 10 evenly spaced along the length of 10. Inside the void 8, a concrete duct 11 is installed, made in the form of a hollow discharge pipe 12 with windows 13. A concrete conduit 11 is connected directly to the concrete pump, and the windows 13 coincide with the windows 10 of the void 8. The void 8 passes through the hole of the butt end 5 to tension and release the reinforcement, in which seals are installed 14. In the vertex head 6, a clamp 15 is provided for stressing and releasing the reinforcement, on which the core former 8 rests in the working position.

In form 3, a reinforcing cage is installed with longitudinal reinforcement 16 fixed to the heads 5 and 6.

A support device 17 for the core former 8 is located on the base 2.

The method is carried out as follows.

Lay the reinforcing cage with the longitudinal reinforcement 16 in the mold 3. After that, close the mold 3. and the self-propelled paver with the concrete pump 7 move to the assembled mold 3. pass the core maker 8 through the hole

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butt end 5, until the end of the hollow binder 8 rests on the clamp 15 of the top end 6. The concrete mixture is fed under pressure from the concrete pump into the cavity of the concrete conduit 11. The concrete mixture passing through the windows 13 of the concrete conduit 11 and the window 10 of the core conduit 8. fills the space between the walls of the mold 3 and hollow blower 8. Simultaneously with the supply of concrete mixture, the longitudinal reinforcement 16 is tensioned by means of a pulling device (not shown in the drawing) attached to one of the head for tensioning and releasing the reinforcement . After filling the mold with concrete mixture 3, the paver with the concrete pump 7 moves to its original position and removes the core former 8 from the cavity of mold 3. and then the concrete mixture is compacted by centrifugation.

The method allows to reduce the time of manufacturing centrifuged shells by combining the operations of tensioning the reinforcement and conveying the concrete mixture and evenly distributing the concrete mixture inside the mold with preliminary compaction of the concrete mixture.

Claims (1)

SUMMARY OF THE INVENTION A method of manufacturing tubular products from concrete mixtures, including laying reinforcement, tensioning it, supplying concrete mixture between the walls of the mold and the core by means of a concrete conduit, and centrifuging, characterized in that that, in order to improve the quality of products due to the uniform distribution of the concrete mixture, the mixture is supplied through the windows of the concrete conduit evenly spaced along the length with the simultaneous voltage of the reinforcement.  I s 1 4 Ј g f 9 1 . U Ј1 ff 6 Fmg. 5