SU1539070A1 - Arrangement for placing and compacting concrete mixes - Google Patents

Abstract

The invention relates to the construction industry, namely the manufacture of precast concrete and reinforced concrete products. The purpose of the invention is to provide the possibility of forming curved articles. This is achieved by the fact that the nozzles 13 are made with roller copiers 24, and in the lower part of the nozzle there are installed freely rotating rolls 16 and 17 and an intermediate rolling roll 18, the nozzles being made with partitions 19 and a spring-loaded beam 21 rigidly connected to the intermediate roller 18 The bunker 1 has an additional dispensing window 4 and a vertical partition 2. Roller copiers are attached to the ends of the rolls' axes. 3 il.

Description

This invention relates to the manufacture of precast concrete and reinforced concrete products.

The purpose of the invention is to provide the possibility of forming curved articles.

Figure 1 shows a device for laying and compacting concrete mixtures; 2 and 3 - rolls, two projections.

The device consists of a feed bin 1 with a partition 2 dividing it into the main 3 and an additional 4 transfer windows with slide gates 5. The flow hopper is mounted on a self-propelled portal 6.

In the upper part of the self-propelled portal, there is a mechanism for vertical movements of the movable frame 7 in the form of a lift 8 drive — neither the frame nor the frame movable in a vertical plane with a system of blocks 9 and cables 10; on which the rollers 12 of the frame move

A nozzle 13 and its drive 14 are located on the frame. The drive allows the nozzle 13 to reciprocate relative to the frame 7 with a span of 100 mm and a frequency of 60 count / min. On each side of the nozzle 13, sliders are mounted with rollers 15c located in them with semi-axes of rotation of the nozzle. The slider guides for the rollers 15 are the inner longitudinal part of the frame.

In the lower part of the nozzle there are installed freely rotating rolls 16 and 17 and an intermediate roll 18, the length of which corresponds to the width of the mold, forming, together with partitions 19, two pump outlets.

The rotation axes of the rolling rolls are located in the same horizontal plane and are connected by means of flexible links to the longitudinal walls. Moreover, the axis of rotation of the intermediate roll 18 can move a vertical plane relative to the axes of rotation of the side rolling rolls due to shock absorbers 20 mounted on a spring-loaded beam 21 with 22 vibrations exciters. The beam is rigidly connected to the axis of the middle shaft with kerchiefs 23. At the ends of the rolls, coaxially with them,

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Roller copiers 24 with independent rotation are set.

The device works as follows.

Portal 6 is installed under the concrete-new trestle of the device bunker 1, is filled with concrete and moves to the form prepared for molding. The operator sets the portal at the end of the form, turns on the drive 8 for lowering the frame 7. The frame is lowered until the rolls are lowered to the sides of the mold. The slide gates 5 of the feed bins are hidden and the nozzles 13 are filled with concrete.

After that, the closures are closed, the operator engages the actuator 14 of the reciprocating movement of the nozzle. The concrete mix under the action of oscillatory movements of the packing, the force of gravity and the pressing force of the rolls fills the mold.

After that, the operator turns on the portal movement drive, the device can work in automatic mode by cyclically feeding the concrete mix into the nozzles. The opening value of the shutter is adjustable. In the process of moving the portal, the mold is gradually filled with concrete and compacted.

In this case, the concrete of the shelf of the product is compacted both by the pressing effect of the rollers 16-18 and by vibrating the intermediate roller 18 of the exciter 22. During the molding process, roller masters 24 roll along the curvilinear generatrix of the sides of the mold, and the rollers 16-18 roll freely along the surface of the concrete, while simultaneously reciprocating.

The concrete is compacted in the edges of the cladding panels both from the pressing force of the copier rollers and from the oscillation pathogens mounted on the sides of the mold, which are switched on simultaneously on two opposite sides of the mold in a certain sequence and only in the work zone of the rolls.

In the manufacture of complex casing panels, the operator will oyvibrodat one of the bunkers from the concrete mix and load the required volume of the mortar mix into it.

A folding frame is installed on the sides of the mold (the height is equal to the thickness of the paroizolation layer, insulation and mortar). The operator sets the portal at the end of the form and lowers the working body onto the form. In this case, the roller rollers of the rolls copier 24 rest on the folding frames. The operator opens the gate of the hopper with the mortar mixture and fills one of the objects of the nozzle with it, then turns on the drive of the reciprocating movement of the nozzle and the drive of the portal. Moving the portal along the form and periodically adding a solution to the nozzle of the bunker, the operator lays it on the surface of the insulation. In this case, the compaction of the solution is carried out by the roller 18 and due to the pressing effect of the rolls 16 and 17.

Claims (1)

Invention Formula A device for laying and compacting concrete mixtures containing a hopper with a dispensing window mounted on a self-propelled portal in vertical guide nozzles in the form of a movable frame mounted on a kinematically associated with the mechanism of vertical movements and rolling rolls placed symmetrically to its transverse axis, and exciters that differ from the purpose of enabling the molding of curvilinear products, nozzles is provided with roller copiers, an intermediate pointing roller and partitions located on both sides of the latter and placed second movable frame along a transverse axis of the spring-loaded beam is rigidly associated with an intermediate roller, the hopper has an additional dispensing window and a vertical partition disposed between the main and additional dispensing windows and roller Ko - receptions are fixed to the ends of the axes of the rolls compacted. 0 2 19 17 25 22 Fig.Z