RU1791127C - Device for molding products from self-cementing mixes - Google Patents

Abstract

Usage: in the manufacture of products from hardening mixtures, in particular during the continuous molding of building products such as roof tiles, building blocks, etc. SUMMARY OF THE INVENTION: the device comprises two vertically closed conveyors with endless flexible conveyor belts enveloping the end sprockets. The tapes are formed by pivotally interconnected elastic winter threads, in the thickness of which recesses are made, the configuration of which corresponds to half the shape of the manufactured product. Fingers with rollers are reinforced in the lateral sections of the links. The outer ends of the fingers are pivotally interconnected by plates. Fingers and plates act as an endless chain driven by sprockets. The conveyor belts are equipped with fingers reinforced in them with rollers at the ends and interconnected into endless chains enveloping the sprockets, and each form is formed by two half-shapes made in the form of opposed recesses in the belts at the site of their mutual contact, while the lower belt is spring-loaded to top. 3 ill. THX

Description

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The invention mainly relates to the manufacture of products from hardening mixtures by pouring mortar into elastic forms, in particular, it can find application in the continuous molding of building products such as roof tiles, building blocks, etc.

A device is known comprising two forming flexible conveyor belts and two endless conveyors enveloping end sprockets. Conveyors are made up of many articulated

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between each other metal links, the working surface of which exactly repeats the configuration of forming tapes and serves as a support for them.

A disadvantage of the known device is that it does not provide high quality finished products. This is due to the fact that considerable effort is required to dismantle them, since the release of the product from the mold takes place due to the separation of the product over a considerable area. This leads to the destruction of the product at the edges and the deterioration of the cleanliness of its surface.

An object of the invention is to improve product quality.

This goal is achieved by the fact that in the proposed device, the conveyor belts are equipped with fingers reinforced in them with rollers at the ends and interconnected into endless chains enveloping the sprockets, and each form is formed by two half-molds made of opposed recesses in the belts in their section mutual contact, while the lower tape is spring-loaded to the upper.

Figure 1 schematically shows a device, side view; in Fig.2 - view along arrow A in Fig.1; figure 3 - node I in figure 2,

The device contains two vertically closed conveyors with infinite ribbons 1, 2, enveloping the end stars 3,4. The lower tape 2 is pressed against the upper spring-loaded frame 5. The tapes are formed by elastic links 6 pivotally connected to each other, in the thickness of which recesses 7 are made, the configuration of which corresponds to half the shape of the finished product 8. The fingers 9 are reinforced in the lateral sections of the links 6 (Fig. 2) with rollers 10. The outer ends of the fingers are pivotally interconnected by the plates 11. The fingers and plates act as an endless chain driven by sprockets (drive mechanism not shown). The device is provided with cleaning brushes 12 and lubricating brushes 13. At the inlet section there is a hopper-dispenser 14, at the outlet section a receiving live roller 15 is received.

The device operates as follows.

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The flexible conveyor belts, when closed, form finished casting molds. The hardening mixture is fed into the molds from the hopper 14. As the belts advance, the mixture solidifies. Finished products are released from the form and fed to the receiving roller 15,

The pulsating rhythm of the movement of the tapes is determined by the filling time of the molds, the length of the tapes is determined by the curing time of the mixture solution. The operation of the device can be controlled by an automatic system consisting of sensors and power motors.

It follows from the foregoing that the proposed device for forming articles from hardening mixtures provides a reduction in stripping forces by releasing the product from the mold at the bending portion of the conveyor belts at the end sprockets. The use of the device makes it possible to significantly improve the quality of products in comparison with the known ones. In addition, the design is simplified and the metal consumption of the device is reduced, and its operating life is also increased.

Claims (1)

The claims A device for forming articles from hardening mixtures, comprising two vertically closed conveyors with conveyor belts enveloping the end sprockets and elastic forms, furthermore, in order to improve the quality of the articles, the belts are provided with reinforced them fingers with rollers at the ends and connected to each other in endless chains enveloping the sprockets, and each form is formed by two half-shapes made in the form of the recesses located in the ribbons in the region of their mutual contact, with the lower that is spring-loaded to the top. AND P d DG1 | 1 ip Ijl l | l rF Tpbjul l | l Pdr | gz | O1 l | l l | llE3jEIDDEI3pll l | l l | l, i | l Fi.Z View / i t them i and u and jji i | i i | i and And | GSh /