SU931472A2 - Production line for producing reinforced concrete articles - Google Patents

Description

(54) TECHNOLOGICAL LINE FOR THE PRODUCTION OF REINFORCED CONCRETE PRODUCTS

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The invention relates to the process equipment used in construction induction plants and is intended for the manufacture of building products by the conveyor method.

According to the main author. St. No. 487770 is a known technological line for the manufacture of reinforced concrete products, including those transported along rail tracks with the help of form-trolley driving devices, post forming, heat treatment post and self-propelled transfer platforms. In order to reduce metal consumption, increase the reliability of the line and reduce the cost, the rail tracks located on the molding path and transfer platforms are made with figure grooves for disconnecting the trolleys, while the shaped grooves are made in the form of inclined bevels to the side of the process flow at an angle ensuring the cars to self-roll up to a fixed position , and form-driven driving devices are mounted on transfer platforms 1.

However, this implementation of the slots in the rail tracks x does not create conditions for the normal operation of the undercarriage of the cars and

rail tracks in the forming post, as the vibration loads quickly deduce them from the line and, consequently, the entire line.

The purpose of the invention is to increase the reliability of the line by increasing the service life of the undercarriage of trolleys and rail tracks.

This goal is achieved by the fact that each shaped groove on the rail of the post is molded with identical bevel angles relative to its center, while the height of the lower bearing surface of the trolley to the supporting points of the traveling wheels is less than the height between the upper bearing surface of the equipment of the forcing post and the centers of the valleys of the shaped rail grooves ways.

In addition, the vibrating table is equipped with rolling elements, and the form-trolley has grooves for these rolling elements.

FIG. 1 shows the proposed line, a general view; in fig. 2 - the same plan view; in fig. 3 shows the node I in FIG. one; in fig. 4 shows section A-A in FIG. 3; in fig. 5-8 - successively the phases of lowering and raising the trolley form on the vibrating table.

The technological line is made up of several parallel rail tracks 1, on which the car forms 2 are installed. One of the paths is a molding line, on which there is a molding post, including concrete paver 3 and a vibrating table 4. The remaining paths are located in the heat chamber 5. Perpendicular to the path m 1 from the ends there are rail tracks b, along which self-propelled transfer platforms 7 and 8 can move, having chain pushers respectively 9 and 10, drives 11 and 12, and rail tracks 13, which have slots 14 with inclined skis s in the direction of the process stream.

The shaping post (Figs. 1, 3, and 4) consists of a vibrating table installed along the axis of the forming line (with an installed plane M), on which rollers 15 are installed rotatably along the axis, protruding beyond the plane M. On both sides of the vibrating table there are rail tracks with special slots 16.

The grooves (Figs. 4, 5, 6 and 8) are made in the form of recesses in the rails and have an inclined (downward) bevel H, a rectangular notch O and an exit oblique bevel P. The depth of the rectangular notch is chosen so that the distance E from that set the plane M of the vibrating table to the bottom of the rectangular cutout O in the rails is always greater than the distance P o of the supporting plane C of the trolley shape to the rolling surface of its wheels 17 to a given clearance G, and the length of the rectangular cutout L is always chosen longer (Fig. 8) than the distance B between the points of simultaneous contact of the wheel 17 nor the inclined bevels of the I and I of the groove 16, to the required clearance I, which allows to avoid the transmission of vibration through the wheels and relieve them.

The carriage in the bearing surface C has cavities 18. The distance between the cavities 18 and the rollers 15 of the vibrating table 4 is equal in width and length in plan.

The dimensions of the special grooves, selected according to the specified ratio, make it possible to exclude KOHTakT wheels of the trolley form with rail tracks, to install the trolley form with the reference plane C on the mounting plane M of the vibrating table, and also to exclude the contact mold with the other (with gray) molds molding line trolleys.

Lini works as follows. At steady state, the rail tracks 11 are filled with forms-trolleys, which stand closely with the necessary disconnection gaps. One of the form-wagons lies on the vibrating table. Self-propelled transfer platforms 7 and 8 are mounted along the axis of the molding line. On platform 7, there is a trolley shape with a finished (steamed) product. Drive 11 is turned on

and the chain pusher 9 moves the trolley form on platform 7, and then the whole form-car train located on the molding line. During this movement, the next trolley form along rail tracks 11 advances on the vibrating table 4, pushing out the trolley shape there, until the wheels 17 of the trolley form are mounted on the inclined bevels I (Fig. 5 and 6) of the special grooves 16. Forced displacement stops . Due to the inertia and inclination of the groove, the form-trolley rolls down from the supporting surface C, lies on the rollers 15 of the vibrating table and moves along them until the depressions 18 do not return to the rollers 15 and the form-trolley does not fully lower on the vibrating table, i.e. the support surface C of the trolley form and the installation plane of the vibrating table M do not touch (Figs. 3 and 4). The wheels 17 of the trolley form are set to the neutral position (they hang down over the rectangular notches of the special grooves).

Concrete is laid and vibrated in the form of a trolley.

During this period, the transfer platform 8, moving along lines 11, transfers the trolley form, pusher 10 loads it into the heat chamber, pushing the entire form-trolley train along one of the heat chamber lines, and pushes the trolley shape with the finished product onto the platform 7.

The platforms are fed to the forming line axis, and the cycle is repeated. The next pushing of the form-trolley lying on the vibrating table is forcibly shifted and, moving, moves first on the rollers 15 of the vibrating table, and then by moving the wheels 17 by the outgoing inclined slopes I of the special grooves 16 and along the rail tracks 11 the form-trolley with the product rolls out from the fasting zone, and its place on the vibrating table is taken by the next trolley form.

Claims (2)

Invention Formula I. Production line for the manufacture of concrete products according to ed. St. No. 487770, characterized in that, in order to increase the reliability of the line by increasing the service life of the undercarriage of trolleys and rail tracks, each shaped groove on the rail of the forming post is made with the same bevel angles relative to its center, and the height of the lower support the surface of the trolley to the support points of the traveling wheels is less than the height between the upper bearing surface of the equipment of the forming post and the centers of the valleys of the figured grooves of the tracks. 2. Technological line by n. 1, characterized in that the vibrating table is provided with rolling elements, and the trolley shape has grooves for said rolling elements. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 487770, cl. B 28 B 5/04, - 1972. 7