SU990532A1 - Machine for closing holes in the end face of multivoid ferroconcrete panel - Google Patents

Description

movable along the longitudinal axis of the primer-rigid rods.

In addition, a concrete feeder is fixed at the bottom of the bunker.

FIG. 1 shows a machine for sealing holes in the ends of hollow articles, side view} in FIG. 2 - section A-L in FIG. one.

The machine includes a movable frame 1, on which a concrete bin 2 is mounted, a drive 3, a vibrator 4, a piston metering unit 5 for concrete, a formwork 6 with windows 7 for supplying concrete, a traverse 8c with a vibrator 9 and a smoothing roller 10

The machine works as follows

After completion of the molding of the cross-section of the cross-section 11, which is continuously manufactured by the method of form-free molding or press-rolling, the machine placed on the wheels 12 is brought along the rails 13 to the freshly formed plate to the place of the overlap.

With the help of actuators 14 and moving mechanisms 15, the hopper 2, the piston metering device 5 and the formwork 6 with the head plate 8 and the vibrator 9, are lowered onto the overlap panel. At the same time between the bottom of the piston metering device 5 and the tops of the overlap 11 is provided., A gap of 10 mm and the formwork with rubber pads 16 rests on the concrete block of the overlap,

using the clamping device 17 of the flange 18 of the formwork b tightly compresses the panel from the sides. The concrete mixture, which is in a dense state after vibration, from the hopper 2, using a piston metering device 5, pistons 19 is fed to the formwork b / having windows 7, to the overlap panel.

At the same time, the pistons 19 close up: the bottom of the bunker 2, stopping the supply of concrete, and close the windows 7 in the formwork.

The voids at the ends of the overlap panel are sealed for a length of approximately 280 mm (two ends of adjacent panels are simultaneously sealed at a time, each vacuum is capped for a length of approximately 140 mm), the concrete mixture is used the same mobility as for the production of panels.

With the help of 20 lines with a rod 21, the traverse 8 is lowered with a vibro-knife 9 movably connected to the traverse. Vibronozh, lowering cuts, first cuts the concrete briquettes 22, fed from the windows 7 of the formwork, and then cuts the panel overlapping, after which the vibration is stopped. Mobility in the horizontal plane in the slots 23 pins 24 facilitates the cutting of the panel. Omitted together with the vibrator knob, the traverse 8 acts on the concrete briquettes on the panel surface. At the same time, the concrete collapses the upper shelves above the voids and densely fills the purtoes, forming monolithic ends of the spout {% tiy. The traverse is lowered until it stops 25, which fixes the level of the top of the slab, after which the traverse along with the vibrocord is lifted up to the stop 26. The formwork boards 18 are pressed out, freeing the side edges of the panel, then leveling the finished surface of the ends, after what. overlap is ready for further processing (steaming and subsequent final cutting).

Pistons 19 and 20 operate with hydraulic or pneumatic systems, which can be autonomous or connected, to a common system of a conveyor line for forming reinforced concrete products. .

The machine for sealing holes in the ends of hollow-core reinforced concrete floor panels has small dimensions and can be used on existing concrete products plants in the manufacture of floor panels by continuous molding methods without significant additional costs.

The machine will allow the mechanized method to seal the holes at the ends of the floor panels. This application will provide increased endurance and will allow the use of more economical hollow core panels in buildings with a height of more than nine floors, which will save at least 2 kg of steel per 1 m of panel and will use lower concrete grades (up to 200) made on conventional cement (brand 400), due to which the economy of cement will be at least b kg per 1 m panel:

Claims (3)

Invention Formula A machine for sealing holes in the ends of hollow-core reinforced concrete products, comprising a movable frame on which a concrete mix bin, formwork and movable loadings are mounted, characterized in that, in order to ensure that the ends of the products can be molded during continuous molding, it is equipped mounted on the submersible by a vibro-knife and a feeder to the concrete formwork for sealing holes, mounted on the bunker 2, the machine according to claim 1, is distinguished by the fact that the vibro-blade is made in the form of moving along the longitudinal axis rigruea hard sterzhley. 3. The machine according to claim 1, characterized in that the device according to | Dachi concrete is fixed in the lower part of the bunker. Information sources, npHHfltHe into account during examination 1. USSR author's certificate No. 275811, cl. B 28 B 11/00, 1968. 2. Authors certificate of the USSR 874355, cl. B 28 B 17/00, 1979. No % Y8 YY59YY 5§ 15 Y ("/ 26 FIG. 2