SU887179A1 - Apparatus for pressing blocks - Google Patents

Description

Linear walls, respectively, of the lateral pressure of the concrete mixture when pressed.

Both thrust massifs 1 and 2 are connected between each other (conventionally not shown), the shape, lowered horizontally into the pit, mounted on the conical pins 10 of the light frame, consisting of two parallel links 11 - channels with a small bar, two curvilinear links 12 from neviiobokogo square and inclined plates welded to the shelves of channels. The free ends are fixed on the shaft 13, an o-perm in the bearings 14 with a slight movement to the array 1.

At the ends of the shaft 13 mounted gears 15, coupled with toothed rails 16, the latter are connected with the rods of the hydraulic jacks 17.

Prilsim, the enclosed shape to the curved steel sheet 18, facing the massif 1, consists of a multi-ridge convex part 19, supported by a strong bar from sheets 20 and I-beams 21 high numbers. The ends 22 are mounted on their ends. They have small short-stroke hydraulic jacks 23, which are located on the longitudinal edge of the PLA walls 6, and the axes of the rollers 24 supported on the rails 25 attached to the edges of the pit walls are mounted on the upper arms.

On the beams 21 of the clamp, two square 26 are vertically fixed to which supports 28 with a spherical depression for the ends of the jacks of the hydraulic jacks 29 are connected through the gasket 27. With a long stroke of radial shaft.

On the inclined part of the array 1, a steel tray 30 is fixed for reloading the concrete mixture from the hopper 31 into the mold, the bunker is on curved rails 32. To the tray 30 (several vibrators 33 located in the poor of the array are attached.

The hoist 34 is mounted on the beam 35 and has a hook 36 on the hook for attaching the shape.

The device works as follows.

Its operation is controlled by one person, i.e. all mechanisms are actuated from the button press control station.

The cleaned and lubricated form of any oil product by the hoist 34 on the pad 36 is lowered into the pit and sits on the pins 10 of the frame. The hydraulic jacks 17 are put into operation, and the frame with the form fixed on it is rotated 90 ° by the shaft 13 from the rack-and-pinion drive until the sealing edges of the flat short walls 6 come into contact with the cleaned and oiled lining 18.

The jacks 29 are deployed, and the clamp moves to the mold, with its rollers 24 rolling on the rails 25. Cfgda

the presser part 19 is convex will enter the recess of Wall 7, the shape will be final to the lining 18 and a container with

open LEAF curved long windows on the curved ends of the block. By pressing the button, the lower punch 5 is set in motion from: its two hydraulic jacks 4 fixed to the lower beam 3.

When this punch with a compacted edge enters the lower window of the form by 20-25 mm, and to facilitate its entrance, all the edges of the window have catchers in the form of a curved edge of 5 mm, the punch is stopped at a length of 15 mm.

From the bunker 31, pre-filled with a strictly metered quantity of concrete mix, it is unloaded onto an inclined tray 30, and the bunker, with its own motion, moves the glass to the guides 32. Simultaneously, several vibrators located in the niches under the tray work, the mixture rolls from the tray into the mold. Work and vibrators on the clip (not shown). This all ensures a good filling of the mold with fresh concrete.

Then, the upper punch 5 is set in motion from its two hydraulic jacks fixed on the upper beam 3. The compact hydraulic jacks 23 supporting the longitudinal ribs of the flat (short) walls 6 supporting the compact pins 23 are simultaneously supported Both the punch 5 is pressed into the pressing operation at high oil pressure in the hydra of the jacks 4. The excess water of the concrete mix leaves

through the sealing edges of both punches 5, through the sealing edges of the flat walls 6 pressed against the facing 18, and through special holes of small diameter on the curved wall, water flows into the trench and from there to the sewer.

Simultaneously with the switching of the hydraulic jacks of the 4 punches 5 to the feed with high oil pressure, the same oil pressure is supplied to the hydraulic jacks 23 and 29,

which ensures that the pressure of the concrete mixture increases, correspondingly to the increase in pressure of the concrete mixture, supporting the flat walls 6 with hydraulic jacks 23 and pressing the clamp to the curvilinear wall 7 of the form, as well as

pressing the edges of the walls 6 to the cladding 18.

The stroke of the pressing punches is recorded by a remote pointer: generally cylinders. jacks mounted on

farm 3 so that they guarantee the receipt of a pressed block with a width of 1 m, with an established tolerance.

After some holding of the punches 5 under the full force required to remove excess water from the concrete mix,

both of the punch are removed from the mold, the hydraulic jacks 29 are moved in, pushing the clamp down. In connection with the existing movement of the bearings 14, the mold with the extruded block is moved a few mm away from the lining 18. The hydraulic jacks 17 and the frame, together with the fixed x 10 and the freshly pressed block, are rotated by 90 ° and placed on long supports .

Turning the mold 90 ° from the vertical to the horizontal position is carried out to ensure the integrity of the freshly pressed block when transporting it with a three-wall mold to the Steam Chamber.

The use of a cylindrical vertical concave surface of a reinforced concrete mass as one long curvilinear wall of a form for a concrete mix significantly reduces the metal intensity of the forms, which is very important for mass production. Having the form of only three of its own walls - reduces the time spent on disassembling, cleaning, assembling and installing the form of an array.

Pressing the concrete mixture with only two punches with a short pressing stroke also contributes to the acceleration of the process of manufacturing the pressed block. The duration of heating the product in the steam chamber is also reduced, since the block is open — it does not have metal walls — the surface is long and wide, and two flat long ends with curvilinear edges are wide. The speed of the process of forming and pressing the block is also facilitated by the automation of control of the operation of hydraulic jacks.

Claims (2)

1. A device for pressing blocks, mainly for the standardized decoration of metro tunnels, containing composite form, punches driven by vertical jacks, characterized in that, in order to increase productivity, it is provided with a vertical farm with at least two horizontal hydraulic jacks with a clamp mounted on their rods, made in the form of curved trusses mounted on guide rods with a console mi, on which additional horizontal hydraulic jacks are fixed, and the form rotation mechanism by 90 °, with vertical hydraulic jacks fixed on a vertical truss. 2. The device according to claim 1, characterized in that the mechanism for rotating the form on 90 ° made in the form of horizontal jacks and kinematically associated with them rack-and-pinion gear. Information sources, taken into account in the examination 1. USSR author's certificate No. 234912, cl. In 28V 3/96, 19, 1967. 2. USSR Copyright Certificate No. 535161, cl. B 28B 7/22, 1974. %. / 3f J   J5 3   XZ // 3 M 7 // ff fS J g Well W