SU1350037A1 - Arrangement for manufacturing void ferroconcrete articles - Google Patents

Abstract

The invention relates to the field of manufacturing hollow-core reinforced concrete slabs. The aim of the invention is to improve the reliability and quality of products and reduce energy intensity. This is due to the fact that the device contains an electrically reversible winch 2, traction 3 and inverse 4 ropes, a movable carriage 5 with hollowers 6. The carriage 5 is equipped with a movable cross-member 10 for fastening the holders 6 and the braking mechanisms of the carriage and adjusting the speed and force extraction of hollow cores 6. The adjustment mechanism is made in the form of horizontal return springs and a chain pulley in the form of blocks, enveloped by traction ropes and alternately fixed on the yoke 10 and the carriage board, and The braking distance is in the form of spring-loaded beams suspended from the carriage with grips at the free ends in contact with the rail guides 7, with the return ropes 4 fixed to the beams. 8 il. i СЛ С 00 СЛ 00 | fU8.f

Description

This invention relates to the production of hollow concrete products.

The purpose of the invention is to increase the reliability and quality of products and reduce energy consumption.

FIG. shows the device, general view; figure 2 - the same plan;

By reverse xaisaTOB 4 on the beams 13, they are rotated in the direction from the carriage to the free fit of the grippers 14 on the rails 7. In this case, the springs 15 of the beams 13 are compressed and the braking mechanism free from jamming prevents the subsequent movement

Fig. 3 shows the mechanism for adjusting the sco-10 carriage 5 with the holders on

growth and removal of voids; FIG. 4 is a section A-A in FIG. 3; Fig. 5 shows the braking mechanism; FIG. 6 is a section BB in FIG. 7 is a section bb of FIG. 5; in FIG. 8 - section G-D in FIG. 5,

The device for manufacturing hollow articles comprises a support frame 1, an electrically reversible winch 2, traction 3 and reverse 4 ropes for moving the movable carriage 5 with hollow formers 6 along rail guides 7 mounted on the support frame 1. The carriage 5 has an upper platform limited by boards 8 and 9. On the platform there is a yoke 10 with attachment points for the shanks of hollow cores 6, which can move within the boundaries 8 and 9. Between the side 8 and the yoke 10 there is a speed control mechanism and it extracts Emptying formers, made in the form of horizontal return springs 11 for connecting the crosspiece 10 with the side 8 and the polyspast formed by the blocks 12, bending around the pull ropes 3 and alternately fixed on the crossbar 10 and the board 8 of the carriage 5, the braking mechanism is made in the form of hinged to board 9 carriages 5 spring-loaded beams 13 with grippers 14 at free ends, in contact with rail rails 7. Reverse ropes 4 are fixed on beams 13.

The device works as follows.

In the absence of tension in the rope 3 and 4, the return springs 11 are unloaded, there are no traction forces in the chain block and the yoke 10 is displaced along the platform of the movable carriage 5 to the board 9, the Beams 13 are deflected from the vertical towards the carriage 5 and pressed to it under the influence of the springs 15 At the same time, the grippers 14 prevent the free movement of the carriage 5 to the form. When filing hollow cores on the form include a winch 2 and impact

By reverse xaisaTOB 4 on the beams 13, they are rotated in the direction from the carriage to the free fit of the grippers 14 on the rails 7. In this case, the springs 15 of the beams 13 are compressed and the braking mechanism free from jamming prevents the subsequent movement

form under the influence of reverse ropes 4. With the end of such displacements, the tension of the reverse ropes ceases and the equipment installed on the carriage takes up the same initial position as before the beginning of the feed to the form.

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After the products are molded, the extraction of the void-forming units 6 is started. The electrically reversible winch 2 is turned on, changing the direction of movement of the ropes 3 and 4. Beams 13, freed from the effect of reverse ropes 4 5 and shifted towards the carriage 5, under the action of the springs 15 are wedged by means of the clamps 14 on the direction - 7 and turn the carriage 5 into a fixed stop. From the towing rope, set in motion, begins to work,, thrust a polyspast. It enhances the effect of the pull rope 3 on the yoke 10 in proportion to the multiplicity of the tackle and the force developed by the winch 2 in the rope 3. With the achievement of efforts sufficient to break the formers 6, the latter move at a speed lower than the speed of the movement ropes 3. This initial extraction is accompanied by the compression of the springs 11 and the gradual elimination of the polyspast from work due to the increase in the springs 11 of the reactive forces suppressing the impact of the polyspast. At the same time, the transition of the hollow cores from the quiescent state to the motion state is accompanied by a gradual decrease in the force required to overcome the adhesion of the hollow cores to the concrete. With the achievement of the equality of this required effort with force, acting in the traction cables 3, the subsequent compression of the springs 11 is stopped, and the polyspast is completely excluded from work. The movable carriage 5 begins its movement from the product, moving together with the cross-bar 10 and holders 6

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with a speed equal to the speed of movement of tow ropes 3..

As the emptying formers 6 out of the product, the area of their contact adhesion decreases and, consequently, the forces required for extraction and forces in the ropes 3 decrease. Under the effect of the reactive coupling of the previously compressed springs I1, the traverse 10 moves along the carriage 5 the side of its side 9. With the end of movement, the winch 2 is stopped, the forces in the traction cables decrease to zero, the carriage 5 and the equipment installed on it take up their original position.

Claims (1)

Invention Formula A device for making hollow concrete products, comprising a support frame, an electric reversing winch, traction and return cables, and a movable carriage with hollow cores, characterized by 7 11 10 so that, in order to increase the reliability and quality of products and reduce energy consumption, the carriage is provided with a horizontal cross-beam traverse for fastening the holders, a speed control mechanism and effort to extract the hollow cores located between the edge of the carriage and the cross head, and a carriage braking mechanism, and the support frame - railways, with the speed control mechanism and the extraction force of the hollow cores made in the form of horizontal return springs for connecting herbs races with a side and a polyspast in the form of blocks enveloped by the traction ropes, alternately mounted on the traverse and on the carriage board, the carriage braking mechanism is in the form of spring-loaded beams hinged to the carriage with grips at the free ends that are in contact with the rail guides when removing the holders, and the return ropes are fixed on spring-loaded beams,. W 9. 15 R 3 1 G WH From izdem. On (rorpu fu.z.2 to .five 6-5 T-r h J-15 7  / //////// Y yJus.S Compiled by Z. Likhacheva Editor Oh, Golovach Tekhred and.Popovich Corrector M.Sharoshi Order 5220/17 Circulation: 525; VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4