SU1214432A1 - Form for manufacturing concrete articles by radial pressing method - Google Patents

Description

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The invention relates to the production of runes and reinforced concrete pillars, mainly grape trellis racks, pasture fence racks, and the like. by radial pressing.

The purpose of the invention is the expansion of technological capabilities by providing readjustment of the form to various sizes of products.

FIG. 1 shows a form, a general view {in FIG. 2 shows section A-A in FIG. 1J in FIG. 3 shows a section BB in FIG. 2

The form consists of a base, half-cylinders 2, fixed on the base by means of axis 3, which is simultaneously the axis of hinges 4, pneumatic cylinders 5, fixed locks 6 and core 7. Core 7, in turn, consists of the top 8, bottom 9 flat rings and ribs 10, for example, of a triangular cross section, welded to the upper and lower rings 8 and 9. At the top and bottom of the forming cavities formed by the side surfaces 1 and I2 of the ripper 10, inclined α-plates 13 are attached, which provide a stripping angle of the ends of the moldable reinforced concrete racks. Pin 14 is located on the base. The fixture for fixing products is made in the form of a flexible tape 15.

The form works as follows.

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2144322

On base 1, a core 7 is installed on the pins 4, half-cylinders 2 are centered by cylinders 5 and 5 are fastened with locks 6, a roller head of a radial pressing machine is inserted into the core, a concrete mixture is fed and the racks are formed, the cross section of which is O The surfaces are defined by the surfaces 11 and 12 of the vertical edges of the core 7 and the surface of the semicylinders 2. Due to the fact that the cross section of the forming cavity has the shape of a trapezium, 15 smaller bases facing the direction of the forming force, the bottom layers and the molded concrete mixture has not degraded when pressing the upper layers.

After completion of the molding, the locks 6 are opened, the half-cylinders 2 are separated from the center around the axis 3, freeing the core 7, which is removed from the pins 14 by the crane and fed together with the molded stands for the thermal and moisture treatment of the latter. In order to prevent the racks from collapsing during stripping and transporting the core, the latter circumferentially wrapped around the ribs with a flexible tape 15, is removed during the stripping of the core, which is produced by squeezing the poles by the force acting on them from the center of the core.

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Editor L.Povkhan

Compiled by L. Karpetkina

Tehred O.NedeKorrektor G, Reshetnik

Order 832/22 Circulation 556 Subscription

VNISh State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch gash Patent, Uzhgorod, st. Project, 4

ag 3

Claims (2)

1. FORM FOR THE PRODUCTION OF CONCRETE PRODUCTS BY THE RADIAP PRESSING METHOD, comprising two half-cylinders interconnected on one side by hinges and, on the other, by tie locks, and a core, characterized in that, in order to expand technological capabilities by providing readjustment fords for various product sizes, the core is made in the form of two planar rings remotely located vertically, connected by a circle with ribs, adjacent side surfaces of which form a vert In order to accommodate the molded products, at the top and bottom of each forming cavity between the ribs there are mounted inclined plates in contact with the ribs and the periphery of the rings, forming an acute angle with the latter, and the core is equipped with a device for fixing sg pieces during form stripping. 2. The mold according to claim 1, characterized in that the device for fixing the products during their formwork is made in the form of a flexible tape. A 2 g 5 f 7 ] L., --- SU, 1214432> Fig.}