SU802041A1 - Apparatus for making articles of construction mixes - Google Patents

Description

one

The invention relates to the field of production of precast concrete and reinforced concrete products.

A device for molding concrete mix products is known, which comprises a support frame, which is housed in its guides, a moving movable frame with a dispensing hopper and rolling rollers installed in the lower part of the latter and calibrating the ski G.

The disadvantage of this device is that the calibrating ski is rigidly connected to the beam and, together with it, makes a reciprocating movement, cutting off the excess of concrete and smoothing the surface.

The closest solution to the invention is the device for the manufacture of products from building mixtures, containing a form that is movable relative to each other and a support frame, in the guides of which are mounted a transversely horizontal displacements, carrying a beam with a bottomless hopper, in the lower part of which sealing tools and calibrating ski.

The disadvantage of this device is that it does not provide the necessary degree of compaction and is unreliable in operation.

The aim of the invention is to increase the degree of compaction and reliability of the device.

This goal is achieved by the fact that a device for the manufacture of construction mixes, containing a form that is movable relative to each other and a support frame, in the guides of which a carrier beam with a bottomless bunker is mounted with a transverse horizontal displacement; organs and calibrating ski, each sealing working body performed

It is not in the form of a V-shaped plate in cross section with an angle of 120 -170 at the top.

In addition, the bottomless bunker is equipped with a device for the scoop5, not in the form of rigidly mounted on the support frame parallel to the direction of movement of the plates.

Claims (2)

FIG. 1 shows a device 30 for molding articles, front view; in fig. 2 is a plan view of a bunker with sealing working bodies. A device for forming concrete products, it consists of a bottomless bunker 2 installed on the base frame, in which a form 3 installed parallel to the direction of movement is placed, sealing the working bodies 4, made in the form of V-o6 | with an angle of 120-170 at the top. Form 3 has a movement drive 5. Racks 6 of frame 1 are made with guide rollers 7, between which carrier beam 8 is installed. A bottomless bunker 2 is mounted on a carrier beam 8 connected to the drive 9 of its horizontal reciprocating movements. A calibrating ski is fixed on the transverse surface of the bunker 2 (conventionally not shown in the drawing). On the supporting frame 1, plates 10, which are parallel to the direction of movement of the form 3, are rigidly fixed, intended for their further destruction. The described device operates as follows. When the actuator 9 is switched on, bulk material is loaded into the hopper, which spills between the sealing working bodies 4 into the form 3 and is continuously rubbed under these organs until the maximum possible compaction of the material under them. Achieving the maximum possible compaction of the material under the working bodies 4 in the form 3 is characterized by the beginning of the back extrusion of the layer of material from under the working bodies towards the unfilled part of the form 3 across the entire width and thickness of the product. After the beginning of the reverse extrusion, the movement actuator 5 is turned on and, continuing to feed the material into the hopper 2, the hopper 2 is moved with sealing working bodies 4 against the material following the layer that is squeezed out from under them, not ahead of the front edge of this layer. Claim 1. A device for the manufacture of products from building mixtures, containing moving relative to each other. another form and support frame, in the guides of which a carrier beam connected to the drive of transverse horizontal displacements is installed with a bottomless bunker, in the lower part of which there are located compacting working bodies and a calibrating ski, which is about 20 mm. In order to increase the degree of compaction and reliability, each sealing working body is made in the form of a V-shaped cross-sectional plate with an angle of 120-1700 at the apex. 2. The device according to claim 1., of which is that the bottomless bunker is provided with a device for the collapse in the form of rigidly mounted on the supporting frame parallel to the direction of movement of the plate shape. Sources of information taken into account during the examination 1. USSR author's certificate No. 527292, cl. B 28 B 13/02, 1975. 2. USSR author's certificate for application number 2148971 / 29-33,, cl. B 28 B 13/02, 1975. 2 A-A.