SU58438A1 - Screw press for core material from cork - Google Patents

Description

This invention relates to screw presses designed to produce core material from cork.

Presses are already known with the use of a chamber for compressible material, which is influenced by a brake device.

Conventional screw presses used for this product have the disadvantage that, due to the considerable rubbing of the material to be pressed against the press walls, the cork mass is strongly compacted, thus grinding into powder.

In the proposed screw press to obtain a core material, in order to eliminate the above disadvantage and to obtain a uniform pressing along the entire length of the product, the chamber for pressing is ma. The material is made in the form of a sleeve, gradually moving under the pressure of the screw down, along the press body, and the magnitude of this displacement of the sleeve can be easily adjusted by installing some kind of already known device.

In the attached drawing of FIG. 1 shows a screw press in vertical section; FIG. 2 is a cross section of a screw along the line AA of FIG. one; FIG. 3- detachable compound auger sleeve; FIG. 4 is a cross-section along the BB line of FIG. 3

The long vertical shaft 1 of the screw ends at the bottom with several screw turns 2. The mass to be pressed out of the hopper 5 enters the upper part of the screw press and, having reached the turns, is pressed into, when the shaft rotates, the sleeve 5 is worn on the body 4. gradually moving downwards. The liner movement is braked with a special pneumatic or hydraulic brake 6, arranged, for example, according to the principle of a conventional hydraulic press. Unlike conventional screw presses, where the pressing of the mass depends on the amount of friction against the nozzle and press walls, here the amount of pressing depends only on the amount of braking of the sleeve and can therefore be easily and precisely regulated using the mentioned brake, which is especially important when