SU1719224A1 - Device for moulding tubular products from concrete mixtures - Google Patents

Abstract

The invention relates to the production of precast concrete and reinforced concrete products, for example, tubular products, bulk elevator elements, elevator shafts, etc. The device consists of an annular support frame 1 installed by means of elastic elements 2 on power short 4

Description

telescopic cylinders 3. The outer mold 4 and the hollow core 5 with the annular tray 6 are mounted concentrically on the annular support frame 1. Along the longitudinal axis of the hollow core 5, a pole 7 is installed, rigidly fixed on the base and carrying the main pathogen 8 of horizontal directional impulses in contact with its drummers with the surface of the hollow core 5. In closed at mosses 1 along the generatrix of the outer form 4 with displacement in the horizontal and vertical planes relative to the exciter 8 us An additional causative agent of 9 horizontally directed power impulses was installed, which, in contact with its drummers, contacts the surface of the outer mold 4. 4 Cp f-ly, 4 ill.

This invention relates to the manufacture of precast concrete and reinforced concrete products, nalimer. tubular products, volumetric elements of elevator construction, elevator shafts, etc.

The purpose of the invention is to improve the quality of the product by providing uniform density around the circumference.

FIG. 1 shows the proposed device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - the main causative agent of horizontally directed power pulses; in fig. 4 - additional causative agent of horizontally directed power pulses.

The device consists of an annular support frame 1 installed by means of elastic elements 2 (spring, rubber, etc.) on power telescopic cylinders 3, which are located between the base and elastic supports 2. The outer form 4 and the hollow core 5 with an annular tray b are mounted concentrically on annular support frame 1 (FIGS. 1, 2). Along the longitudinal axis of the hollow core 5, a post 7 is fixed, rigidly fixed on the base and carrying the main exciter 8 of horizontally directed power pulses, made of a composite of separate sections on which the impactors are attached, which are in contact with the surface of the core 5.

In closed with micros 11, forming the outer form 4 with offset in the horizontal and vertical planes relative to the main exciter 8 horizontally directed power pulses of the core 5, an additional pathogen 9 horizontally directed power pulses is installed, contacting with its impactors with the surface of the outer form 4 (Fig. 1, 2).

The causative agents 8 and 9 of the horizontally directed power pulses are made of composite sections of individual sections (energy-driven and working). As pathogens of horizontally directed power pulses, commercially available electric hand drills, such as IE-4712 (FIG. 3), pneumatic hand crowns or IP-4607 hammers and IP-4119 hammers (Fig. 4) and mechanical ones can be used. Impactors that are in contact with the corresponding surfaces of the outer form 4 and the hollow core 5 are fixed in checker pattern on the exciters 8 and 9 of horizontally directed power pulses.

The installation works as follows

On the annular support frame 1, which

in the initial position corresponds to the upper position of the power telescopic cylinders 3, the outer shape 4, hollow core 5 is mounted concentrically

with an annular tray 6. Simultaneously with the flow of the concrete mixture, the mold 4, together with the hollow core 5, is lowered by means of power telescopic cylinders 3 into the shell 10. In the process of lowering the mold

The causative agents 8 and 9 of horizontally directed power pulses with impactors, which, in contact with the surfaces of the core 5 and the outer form 4, in a staggered order, consolidate

concrete mix shock pulses. The frequency of shock pulses of the exciter 8 may differ from the frequency of the exciter 9, depending on the mobility (workability) of the concrete mix and the shaping modes. The efficiency of compacting the concrete mix is achieved in one cycle of lowering and lifting the mold.

Offset of the main 8 and additional 9 pathogens horizontally

directional impulses in the horizontal and vertical planes relative to each other allows to increase the uniformity of the seal, and fixing the supporting ring frame 1 on the power telescopic cylinders 3 by means of elastic elements 2 causes vertical

oscillations of the shape, the natural frequency of which depends on the rigidity of the elastic elements 2, which ensures the reduction of dynamic disturbances to the power telescopic cylinders 3. Formula of the invention 1. A device for forming tubular products from concrete mixtures, which is installed vertically through elastic supports a moving frame, an annular pallet mounted on it, a cylindrical outer and coaxial inner forms, placed in the latter along the longitudinal axis and mounted on the rack the causative agent is power impulses with symmetrically located impactors in contact with the internal shape, and a drive of vertical displacements in the form of telescopic cylinders, characterized in that, in order to improve the quality of the product by providing uniform density around the circumference, it is equipped with an additional exciter in a horizontal direction power impulses, with the main and

Additional pathogens are made up of separate sections on which impactors are fixed, which are in contact with the corresponding surfaces of the forms in a staggered order, with the power telescopic cylinders located between the base and the elastic supports, and the stand is rigidly fixed on the base.

2. The device according to claim 1, characterized in that the strikers of the main and additional pathogens of the horizontally directed power pulses are installed in two levels.

3. Device pop. 1, characterized in that the exciters of horizontally directed power pulses are made in the form of electromechanical impactors.

A. device pop. 1, characterized in that the drivers of horizontally directed power pulses are made in the form of pneumatic impactors,

5. The device according to claim 1, about t and ch and th e with the fact that the causative agents of horizontally directed power pulses are made in the form of mechanical strikers.

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Claims (5)

Claim 1. A device for forming tubular products from concrete mixtures, comprising a vertically movable frame mounted on the base by means of elastic supports, mounted on it an annular 'pallet, a cylindrical outer and coaxial inner form, mounted in the latter along a longitudinal axis and mounted on a rack with a horizontally directed force exciter pulses with symmetrically arranged impactors in contact with the internal form, and a drive of vertical displacements in the form of telescopic cylinders, characterized I am that. in order to improve the quality of the product by ensuring uniform density around the circumference, it is equipped with an additional exciter of horizontally directed power pulses, and the main and additional exciters are made up of separate sections on which the projectiles are fixed, which contact with the corresponding surfaces of the forms in a checkerboard pattern, while telescopic cylinders are located between the base and the elastic supports, and the stand is rigidly fixed to the base. 2. The device pop. 1. distinguished by the fact that the strikers of the main and additional pathogens of horizontally directed power pulses are installed in two levels. 3. The device pop. 1, moreover, in that the causative agents of horizontally directed power pulses are made in the form of electromechanical impactors. 4. The device pop. 1, characterized in that the causative agents of horizontally directed power pulses are made in the form of pneumatic impactors. 5. The device according to claim 1, characterized in that the causative agents of horizontally directed power pulses are made in the form of mechanical impactors. FIG. 2