SU1472276A1 - Arrangement for forming voids in making of concrete articles - Google Patents

Abstract

The invention relates to the manufacture of building products, in particular, to devices for the formation of voids in reinforced concrete products, and makes it possible to improve the quality and broaden the range of products. The device with the holders is placed on the mold before or after pouring it with the mixture. For the period of maturation of the array, the mold with the device for the formation of voids is sent to the steam chamber. After the concrete has reached the required plastic strength, the device is removed by means of a grip from the mold by the loops 11, which actuate the mechanism of rotation of the holders. Along with the lifting of the loops 11, the longitudinal drafts 10 move. In this case, the hygiene 7, connected to the levers 6, turn the emptying bodies 5 around the vertical axis. 5 il.

Description

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The invention relates to the industry of construction materials, in particular to the structures of devices for the manufacture of hollow products.

The purpose of the invention is to increase the quality and expansion of the product range.

FIG. 1 shows a device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. FIG. 5 is a diagram of the mutual arrangement of the guides on the uprights j and the form, a plan view.

The device contains frame 1 with four vertical posts 2. On frame 1, packages of hollow cores are installed, consisting of beams 3, 20 on which hollow formers 5 are installed in removable sleeves 4. The latter are equipped with a mechanism for their rotation, made in the form of connecting them through levers 6 ti gi 7, for example, in the form of a cable, one end of which is connected to the spring 8, and the other through the guide roller 9 and the profile pull 10 to the lifting loop 11, which is mounted movably in the directional holes x 12 frame 1 and provided with a limiter in rtikalnogo movement of the stop 13 with the spring 14 for the return stroke.

Packages of hollow core 5.pipe hardware on frame 1 with - using clamping 35 elements 15. Ti 10 are provided with ends 16 by guides that move freely in the holes of frame 1 (Fig. 3). On the uprights 2, guides 17 and 18 are mounted, corresponding to the guides 19 of the mold 20.

The device works as follows.

Depending on the location of the voids in the molded products, packages of hollow balers 5 are formed and installed on the frame 1 of the device. Using a crane and a sling or a crane used in the production of gripping (not shown), the device is lifted by the loops 11 and placed on the mold before or after pouring her mix. The guides 17 and 18 are in conjunction with the guides 19 of the mold 20 (Fig. 5). and provide the exact location of void formers 5 in the concrete mass.

The mold, together with the device for the formation of voids during the period of maturation of the massif, can be covered with a steam casing, either sent to the steam curing chamber, or subjected to vibration treatment.

After the concrete reaches the required plastic strength, the device is removed from the mold by the loops 11 using a sling or grab. In this case, the lifting loops 11 actuate the mechanism of rotation of the hollow cores before starting to remove them from the array when lifting the devices from the mold,. ,

The rotation of the formers 5 occurs due to the fact that when the device is lifted, the loops 11 first move vertically to the upper position, and with them the longitudinal bars move 10. In this case, the hooks 7 connected to the levers 6 of the core holders 5 rotate around the vertical axis, eliminating the adhesion between the concrete mass and the surface of the cores 5. Thus, cracks and chipping are prevented when the cores are removed from the massif.

Only after lifting loops 11 have reached the upper position, i.e. accordingly, after rotation of the cores 5, the device begins to lift and remove the cores 5 from the array.

The guides 17 and 18 when lifting the device is in constant contact with the guides 19 of the mold 20, ensuring strict alignment of the extracted void formers 5 and those formed by them: iycTOT,

After removing the device from the mold, its cycle is repeated. In this case, after installation of the device on the shape of the loop 11, under the action of the Reverse Steam 14, they return to the lower position. At the same time, the pulls 7, under the action of the springs 8, also return to the initial position, and the void-forming agents 5 turn to the initial position.

Claims (1)

Invention Formula An apparatus for forming voids in the manufacture of reinforced concrete products, comprising a frame with to it hollow cores, load gripping loops for its installation and removal from the mold, characterized in that, in order to improve the quality and expand the product range, it is equipped with a rotation mechanism of the hollow cores, the frame - removable sleeves for fastening hollow cores, load gripping loops - connecting them pairwise gesture kimimi located along the frame, and vertical movement limiters, each of which is made in the form of an emphasis with a spring-for reverse, the mechanism of rotation of hollow cores - in the form of a flexible linkage between them, subpra (inna, and the other rigidly connected with a rigid tie. (pue.i 6-6 (fjcta3 nineteen I srig.V Editor I. Casard Compiled by A. Kopkova Tehred L. Serdyukova Order 1657/16 Circulation 517 VNIIPI State Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., 4./5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 (raga P Proofreader N. Gunko Subscription