SU1765009A1 - Revolving conveyor for producing construction items - Google Patents

Abstract

Usage: in the construction industry in the manufacture of concrete slabs. SUMMARY OF THE INVENTION: A conveyor consists of a non-rotary ring platform -. we, movable carts placed on it, with fixed elements mounted on them of forms of moving wedge intermediate elements, concrete equipment in the form of a bunker, mechanisms for fixing intermediate elements, heat treatment chamber, devices for transporting intermediate elements. The ring platform is made in the form of RITKE spiral with a slope of 0.01-0.02 from the cleaning and lubrication station to the product removal station. The impelled carts are trapezoidal in shape and are equipped with rollers, guide rollers and damping rollers between the carts. The protrusions of the elements are equipped with aprons; /, of elastic material. 3 Il.

Description

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The invention relates to the field of the construction industry and can be used in the manufacture of building products, mainly concrete and reinforced concrete.

A rotary conveyor for manufacturing concrete and reinforced concrete products is known, consisting of a rotary platform on which fixed parts of the form with fixing means are placed and equipment installed in the technological sequence, intended for disassembling and assembling the forms, preparing the molds for molding, charging them with reinforcement, and laying concrete and vibro-processing and heat treatment, shaping products, the forms consist of T-shaped elements and inserts located between them, with T-shaped elements in complete immobility in a radial plane, and the insert is rigidly fixed to the turntable, and machinery for disassembly.

assembling and fixing the forms is made in the form of hydropushers, for Bi / .the processing of the laid concrete into forms is in the form of a lifting and lowering unit of immersion vibrators, and the device for heat treatment of the molded products is made in the form of an open ring thermal chamber enclosing the rotary conveyor.

The disadvantage of this solution is high power consumption and low productivity.

The closest technical solution to the claimed is a rotary conveyor for the manufacture of construction products, including a rotary ring platform, placed on it with end boards wedge intermediate elements between the forms, made in a vacuum shield, a mechanism for pressing out, concreting devices, heat treatment, removal of products and preparation of forms, sj vibrocatcher

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whether for a radial movement of intermediate elements, a device for transporting intermediate elements, made in the form of a platform with a manipulator, a rail track for moving the latter.

The disadvantage of the known conveyor is the high energy intensity of manufacturing the products when rotating the ring platform and the operation of other devices and the high intensity of the metal of the conveyor, especially the rotary ring platform, as well as the insufficient quality of the products due to possible damage to their side surface during demoulding. .

The aim of the invention is to reduce the energy intensity of manufacturing products, metal consumption and improve the quality of products.

The goal is achieved by the fact that in a rotary conveyor containing a swiveling ring platform, placed on it with end boards, wedge intermediate elements between the forms, made in the form of vacuum shields, pressing mechanism, concreting devices, heat treatment, removal of products and preparing molds, vibro-pushers, a device for transporting intermediate elements, a rail track for moving it, elastic seals of the end sides of the forms, an annular platform is made rotary, Position the sloping 0.01-0.02 fast preparation of forms to post removal products. The rotary conveyor is equipped to install carts with support rollers, guide and cushioning rollers, each in the plan has the shape of a trapezoid and is located with its smaller base closer to the center of the ring platform, the guide rollers are located on it. the longitudinal sides that form the base of the trapezium, the damping rollers — between the end boards of the docked adjacent trolleys, while the diameter of the support rollers located on the outer side of the platform exceeds the diameter of the support rollers located on its inner side.

Fig, 1 shows a rotary conveyor, a view in plan; in fig. 2 - sweep of a section of the conveyor with a height difference; in fig. 3 - conveyor unit with an intermediate element. The rotary conveyor consists of a rotary ring platform 1, movable carts 2 placed on it with fixed elements of forms 3 mounted on them, which are placed between the two carts, moving T-shaped elements 4, concreting equipment in

the form of a bunker 5, mechanisms 6 for fixing elements 4, mechanism 7 for pressing out elements 4, a heat treatment chamber 8, devices 9 for transporting elements 4 mounted on a crane runway 10 above an unclosed chamber 8 section of a rotary conveyor. Ring platform 1 is made in the form of a spiral with a slope of 0.01-0.02 from the post 11 of the preparation of forms (in the upper part of the platform 1) to the post 12 of the removal of products 13. The slope of 0.01-0.02 ensures smooth movement of the conveyor carts 2 under the force of gravity. Trolleys 2 are trapezoidal in shape, mounted close to each other and provided with support rollers 14 for moving across the floor of platform 1, guide rollers 15 for interacting with the walls of chamber 8 and platform 1 during movement and damping rollers 16 between the carts. The rollers 14, located on the outside of the platform 1, have a larger diameter than the rollers located on the inside, which ensures uniform, without distortions, the movement of the carriages 2 along the ring platform 1. Each intermediate element 4 is placed on 2 trolleys and connects with them by means of tapered keys 17, which fit into the corresponding grooves 18 on the carriages 2. The intermediate elements 4 can be made without devices for evacuating. The protrusions 19 of the elements 4 are equipped with aprons of elastic material, fixed in their upper part on the inner side of the molding cavities, which facilitates the process of stripping and contributes to improving the quality of the concrete surface.

Rotary conveyor works as follows. The trolley 2, freed from the products 13 at the station 12 by the device 9 mounted on the crane runway 10, is moved to the station 11, which is released after lifting the truck 2 from the station 12 and moving the entire conveyor. At the same time, the mechanism 7 releases intermediate element 4 at the post before entering the chamber 8. Then the device 9 lifts and moves the pressed element 4 to the post 11 where it is installed on two carts 2, after which the surfaces of the carriage 2 are cleaned and lubricated element 4 in contact with concrete. After the removal of the next product 13 through the post 12 and the lifting of the trolley 2, the entire conveyor moves one step and the reinforcement cages 21 are installed at the next post. After the next movement to the post molding 22, the two elements 4 adjoining the molding cavities are pressed and fixed by mechanisms 6 after which the concrete is laid from the bunker 5 and compacted with vibrators 23. Concreting equipment can be equipped with holders (not shown), which are removed after lifting the vibrator 23. From the post Moving 22, the carriage 2 with the molded articles is moved to the vacuuming station (and or, in its absence, to the holding station). After the element 4 is pressed out by the mechanism 7 and moved to the post 11, the cart 2 with the products 13 enters the chamber 8. After the heat treatment and the exit of the cart 2c with the products 13 from the car 3 to the post 12, the products 13 are removed from the cart 2 by the device 9 and transferring them to the live rolls 24, which will deliver them to the finished goods warehouse, then lifting the trolley 2 with the device 9 and, after moving the conveyor, setting it to post 11.

Due to the use of intensive technology - preheating of concrete, the use of superplasticizer and other additives that accelerate the setting of cement and hardening of concrete, the use of rigid concrete - it is possible to refuse concrete evacuation and to accelerate the speed of the conveyor.

Technical and economic efficiency of the proposed solution is to reduce the energy intensity of manufacturing products by 15-20% due to the failure to rotate the ring platform entirely and to reduce the metal consumption of the conveyor by 10-15%. In addition, the surface quality of the manufactured products is improved. Failure

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from evacuating energy savings and metal increases without deteriorating the quality of concrete.

Claims (1)

Claims of the invention A rotary conveyor for the manufacture of building products, comprising an annular platform mounted on the base, fixed elements located along its radii and movable T-shaped form elements located between them, extrusion mechanisms and posts arranged in a technological sequence d / 1 concreting, heat treatment, removal products and preparation of forms, characterized in that, in order to reduce the energy intensity of the manufacture of products, metal consumption and improve the quality of the product, it is equipped l forms installation with carriages with support rollers, guiding and damping rollers, each of which in the form has a trapezium shape —l is located by its smaller base closer to the center of the ring platform, the guide rollers are located on its longitudinal sides forming the base of the trapezium, and the damper 1 rollers - between the end sides of the docked adjacent carts, with Gtom, the diameter of the rollers located on the outer side of the ring platform exceeds the diameter of the rollers located on its inner side, moreover, the latter is located with a slope to the base of 0.01-0.02 from the post for preparing the forms for the post, the scheme of the articles is fixed on the base. / 6 I 17, / 8 20 figure 1 9 ff m / eight // FIG. 2 sixteen k V / V