RU1790495C - Device for continuous molding of articles - Google Patents

Abstract

Usage: the production of building products from semi-dry mixtures. SUMMARY OF THE INVENTION A piston 5 with spikes 6 on its gummed working surface and a wear-resistant ring 8 on its lateral surface pushes the mixture from the die cavity into the forming channel 3, lined with wear-resistant removable tiles 4. The forming channel 3 communicates with the cutting branch 9. 2 silt.

Description

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ABOUT

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The invention relates to mechanical engineering and can be used in technological processes for the production of building products of various sizes (blocks, bricks, etc.) from semi-dry mixtures.

A molding device is known comprising a hopper, a mold, a punch with a bar, a metering chamber in the punch and openings in the bottom of the punch for passing material into the mold.

The disadvantage of this device is the difficulty of removing the finished product from the mold, the difficulty of passing the material through the holes in the bottom of the punch, the difficulty of reciprocating with simultaneous circular vibrations, and poor sealing quality.

The prototype is a device for manufacturing long products from graphitoplast containing a heated matrix with a forming channel, a feed hopper and a piston, a drive ripper in the matrix for a drive ripper, protrusions and grooves both on the surface of the groove of the matrix and on the ripper.

The disadvantage of the prototype is the complexity of the device, the inability to loosen the upper part of the joint, since material accumulates above the upper surface of the ripper, which does not allow the ripper to reach the ceiling surface of the matrix.

The aim of the invention is to simplify the design, improve product quality and expand the scope.

This goal is achieved in that in a device for continuous molding of products containing a pressing matrix with a forming channel, a feed hopper and a piston with a reciprocating drive, the piston is equipped with spikes in the form of truncated cones, reinforced in a checkerboard pattern with large bases to the end working the surface of the piston and having a length exceeding half the stroke of the piston, and a removable wear-resistant ring on the side surface of the piston, while the surfaces of the cavities of the pressing and shaped the channels are provided with a lining of wear-resistant removable plates, and the end working surface of the piston is made with a gummed coating, and the device has a detachable pipe in communication with the output part of the forming channel, which is mounted with the possibility of reciprocating movement in a plane perpendicular to the longitudinal axis of the device.

These structural distinguishing features are not described in well-known sources of scientific, technical and patent information, therefore, the proposed technical solution meets the criterion of significant differences ..

In FIG. 1 shows a device in section, General view; in FIG. 2 is a process for compressing products.

The device includes a hopper 1, pressing 2 and forming 3 channels. The pressing channel 2 and the forming channel 3 are integral, and their inner surface is lined with wear-resistant removable tiles 4. There is a piston 5 mounted with the possibility of reciprocating movement inside the pressing channel 2, and fixed to the front end working surface in

In a checkerboard pattern, the studs 6 have the shape of a truncated cone, and the studs face their large bases to the front end working surface of the piston 5, and the end working surface free of spikes piston 5 is made with a gummed coating 7. On the side surface of the piston there is a wear-resistant removable ring 8. The device has a cut-off connected to the output part of the forming channel

0 pipe 9, mounted with the possibility of reciprocating movement in a plane perpendicular to the longitudinal axis of the device and the platform 10 for finished products, The device operates as follows.

The initial mixture from the hopper 1 (Fig. 1) enters the pressing channel 2, where, using a piston 5, it is pushed to the right along the channel 2 and then into the forming

0 channel 3. When leaving the forming channel 3, the compressed mixture enters the cutting branch pipe 9, which, displacing reciprocating in the plane perpendicular to the axis of the device, cuts off

5 product, the length of which meets the requirements of technical specifications. The displacement of the nozzle 9 back and forth occurs at the moment the piston 5 moves in the opposite direction to the working stroke. The finished product is then pushed to the platform 10 moving to the right with a compressed mixture.

In the process of pressing the mixture (Fig. 2), the spikes b having a length greater than half the stroke of the piston carry out through

5, compressing the mixture so that a mixture of the subsequent layer is compressed into the conical recesses of each previously compressed layer. Such pressing leads to the formation of a sharply relief compacted surface of each layer, which means, consequently, to the creation of conditions for the joint operation of the layers when both shear and bending loads are applied to them. The conical shape of the spikes 6 ensures their free exit from the pressed layer during the reverse stroke of the piston, and the gummed coating 7 on the piston-free surface of the piston prevents the mixture from sticking to the end face of the piston. Wear-resistant removable tiles 4 and removable ring 8 increase the durability of the device for continuous molding of products.

The proposed technical solution will simplify the design as compared

In addition to the prototype, since there is no complicated structure in the ripper of the layers, to improve the quality of the finished product, since the layers are interconnected by a sharply relief compacted surface that allows them to work together when both shear and bending loads are applied, as well as in as a result of the creation of spikes of continuous compacted formations, which are reinforcing strands of the same material, to expand the scope of such devices for manufacturing products with different geometric parameters and the shape and composition of the various mixtures.

Claims (1)

The claims A device for continuous molding of articles containing a pressing die with a forming channel, a feed hopper and a piston with a reciprocating drive, characterized in that, in order to simplify the design, improve the quality of the products and expand the scope of application, the piston is equipped with truncated spikes cones staggered in staggered order with large bases to the end working surface of the piston and having a length exceeding half the stroke of the piston, and a removable wear-resistant ring on the side surface of the piston, the surfaces of the cavities of the pressing and forming channels provided with a lining of wear-resistant removable plates, and the end working. The surface of the piston is made with a summed coating, and the device is in communication with the output part a forming channel a cut-off pipe mounted with the possibility of reciprocating movement in a plane perpendicular to the longitudinal axis of the device.