SU903125A1 - Head of machine for radial compacting of tubular articles from concrete mixes - Google Patents

Description

(54) MACHINE HEAD FOR RADIAL SEALING TUBULAR PRODUCTS FROM CONCRETE MIXTURES

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The invention relates to equipment for forming concrete and reinforced concrete tubular products on radial compaction machines.

A roller head is known comprising a distribution disk fixed to the end of the drive shaft with a hub and blades and a plate with a smoothing skirt and sealing rollers 1.

Closest to the proposed head for forming pipes from concrete mixes, containing a distribution disk with stupets and blades fixed at the end of the drive shaft and a plate with a smoothing skirt and sealing rollers 2.

The disadvantages of these devices are the low quality of the molded products and the low intensity of the compaction process.

The purpose of the invention is to increase the quality of the molded products and to intensify the compaction process by combining rolling with vibration.

This goal is achieved by the fact that in the machine head for the radial sealing of tubular concrete products containing a plate fixed to the lower end of the drive shaft

the skirt, in the supports of which are mounted hollow rolling rollers with throwers on their upper ends, each rolling roller is provided with a weight eccentrically fixed in its cavity, and the supports are made with elastic elements in the form of sleeves covering the lower ends of the axes of rolling rollers.

FIG. 1 schematically shows the proposed head, a general view; in fig. 2 - the same, top view; in fig. 3 - rolling

10 video.

At the lower end of the drive shaft 1, a plate 2 is fixed with a smoothing skirt 3. In the supports 4 of the plate, hollow rolling rollers 5 are mounted with throwers 6 on the upper ends. Each roller is provided with 5 eccentrically secured in its cavity with a load 7. The supports 4 rollers are made with elastic elements in the form of sleeves 8, covering the lower ends of the axles 9 of the rolling rollers. The product is molded on a pallet 10 of a mold 11.

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The device works as follows.

When forming tubular products, the pallet 10 is installed in such a way that its working surface is on

level of the lower edge of the throwers 5. When the head rotates, the concrete mix is fed to the throwers, which spray the concrete mix around the circumference of form 11. The rolling rollers 5 compact the molded product and, in addition, vibrate the rotation produced by the rotation of the weights 7 As the concrete is laid and compacted, the head is raised.

The proposed head design allows improving the quality of the molded articles and intensifying the compaction.

Claims (2)

1.Rolikovy head to the pipe-forming machine SMZH-194, "Construction and road cars, 1977, No. 4, p. 22 2. USSR author's certificate number 688342, cl. B 28 B 21/24, 1978.