SU821157A1 - Mould for making tubular articles from concrete mixes - Google Patents

Description

one

This invention relates to the technology of conveying concrete and reinforced concrete pipes in various forms.

The known form for the manufacture of tubular concrete products according to the main ed. St. N 637263i containing molds with longitudinal flanges in contact with each other and tightening bolts. The coupling surface of the flanges of one of the half-molds is made of a wedge-shaped form (forms with a longitudinal platform in a wedge, the width of which is from 0.005 to 0.01 of the diameter of form 1.

A disadvantage of the known form is the low molding productivity and the low quality of the products.

The purpose of the invention is to increase the productivity and quality of moldables.

LI.

This goal is achieved by the fact that in the form for the manufacture of tubular concrete products containing half-molds with longitudinal flanges in contact with each other, and clamp bolts with

the connecting surface of the flanges of one of the half-molds of the CLI-LEVEL shape with the longitudinal platform in the wedge, the width of which is from 0.005 to 0.1; diameter of the mold, the bottom half-form is provided with 4 1xators mounted on its flanges by elastic plates, mounted on the inner surface in the junction zone of the tolumens in contact with the inner / surface of the upper half-form, the flanges are made with slots to accommodate the xsator, and the length of the elastic plates is equal to the bottom , and their widths and thickness are respectively 0.15-0.3 and 0.005-0 /) of the internal diameter of the mold.

FIG. Figure 1 shows a mold for making tubular products from concrete mixtures in a joint; in fig. 2 - place ustyuk clips before assembling; in fig. 3 - the same in the working position ..

Claims (2)

The mold for the manufacture of tubular units contains the upper 1 and lower 2 half-molds. The upper half-form 1 has longitudinal flanges 3, to which the fastening bolts 4, 3.8 are mounted on the longitudinal flanges 5 of the lower half-form 2. On flanges 3, stops are provided 6. The coupling surface of flanii B 3 is made of a wedge-shaped form with a longitudinal area 7, the width of which is from 0.005 to 0.01 of the diameter of the form. The bottom mold 2 is provided with elastic plates 8, rigidly fixed with screws 9, and a retainer 10. The length of the elastic plates 9 is equal to the length, and their igarine and thickness are respectively 0.15-03 and 0.005-0.01 of the inner diameter of the mold. The form works as follows. Install the reinforcing cage into the cleaned and lubricated half-form 2, then install the half-form 1 with a crane, orienting it by setting the guide retainers 10 into the grooves of the flanges 3 of the half-form 1. The length of the right side fittings 10 should be 50-100 mm greater than the working width of the plate to ensure accurate centering of the half-form during assembly. When lowering, the upper half-form 1 begins to interact under the action of its own weight by means of longitudinal wedge-shaped platforms 7 with beveled surfaces of the ends of the elastic plates 8, causing them to bend inwards and overlap the inner surfaces of the half-forms in the zone of their joint along the entire length of the form. At the same time, in order to ensure reliable overlap of the joints of the half-molds along their inner grip surfaces and to ensure high quality of the products, the length of the plates should be equal to the length of the form, and the width and thickness should be respectively 0.150, 3 and 0.005-0.01 of the diameter of the form. In the process of centrifuging, the mold halves can move relative to each other, but the presence of an intact sliding contact of the ends of the plates with the inner surface of the upper mold half 1 excludes the appearance of any gap. The invention The form for the manufacture of tubular products from concrete mixes according to ed. St. N 637263, characterized in that, in order to improve productivity and improve the quality of the molded products, the bottom half-form is provided with clamps installed on its flanges and elastic plates mounted on the inner surface in the joint zone of the half-form and in contact with the inner surface of the upper half-form, the flanges of which They are made with grooves for accommodating clamps, and the length of the elastic plates is equal to the length of the ffma, and their width and thickness are respectively 0.15-0.3 and 0.005-0.01 of the inner diameter of the mold. Sources of information taken into account in the examination 1. USSR author's certificate N 637263, cl. B 28 B 21/80, 1977. W