LT5787B - Method and device for fiberizing of fibre - Google Patents

Abstract

The invention relates to methods and devices for fiberizing of fibre and can be used for preparing forming mix for building materials. New is that fiberizing is arranged on horizontal plane with abrasive grains, which are larger than sieve pores, which scrub elastic elements and work element of device is brush shaped elastic element placed on the end of vertical axle and connected to axle movably in vertical direction. Elastic brush elements rest on a sieve.. Elastic brush elements are placed eccentrically in respect of rotating axis of axle and top of its is wedge shaped.

Description

The present invention is applicable to the processing of fibrous materials and can be used to extinguish comminuted fibers in the preparation of molding compounds for the production of building materials.

Russian patent no. No. 2038846, B 02C 13/26 discloses a method for processing fibrous materials, wherein the fiber is fed to and spun out by needle scrapers arranged on two counter-rotating drums.

Only longer fibers can be milled by the machine. The short fiber bundles would clog the needle scrapers on the first drum, which could not be scraped off by the other shaft.

The closest technical solution is the Russian patent RU 2060828, B 02C 13/04, in which the fiber is fed to and fed through a mesh screen by a work organ.

This method is not suitable for the finishing of fine fibers with interconnected fibers (rotating work organ - discs block the mesh holes with the fiber). A device for implementing this method, consisting of a housing with a feed and discharge aperture with a spindle, does not ensure that the fiber is minced at a small sieve hole size.

The working organs block the sieve holes with fiber fibers and the leaching process is interrupted. Do not enlarge the sieve holes, as thin fiber will fall through them to adhere to other fibers and will not ensure the leaching quality.

It is an object of the invention to provide a high quality fiber bundle through sieve holes.

The object is achieved by the fact that the sieving through the sieve takes place in a horizontal plane with abrasive grains larger than the meshes of the sieve which are rubbed by the elastic element.

The working member of the device for carrying out this method is a brush-like elastic member disposed at the end of a vertical shaft and connected to the shaft in a movable vertical direction, the elastic brush members resting on a sieve.

In addition, the unit has eccentric brush elements arranged eccentrically with a tapered top.

The method and the apparatus for fiberizing are explained in the drawings. FIG. 1 is a schematic view of a fiber tearing device, FIG. 2 is a working organ in section A-A in FIG. 1, FIG. 3 is a cross-sectional view of the body organ B-B in FIG.

The device is designed to implement a method for fiber bundling, consisting of a housing 1 with openings 2 and a discharge 3, a screen 4 with apertures 5 and a vertical shaft 6 fixed in the upper part 1 of the housing.

A sleeve 7 is disposed on the shaft 6, movable in a vertical direction, the lower part of which has fixed holders 8 for attaching brush-like elastic bristles 9 whose ends rest on the upper surface of the screen 4. The holders 8 are disposed eccentrically to size e relative to the axis of rotation of the shaft 6 and their upper surface is wedge-shaped 10.

Abrasive grains - sand screenings 11, which are larger than the meshes of the sieve 5 are spread on the sieve 4. The vertical shaft 6 receives a rotational movement from the gear 12. The device is mounted above the mixer 13.

The device works as follows.

When the agitator 13 and the actuator 12 are in operation, a chopped fiber (not shown) is fed through the inlet 2, which folds over the sieve 4. As the spindle 6 turns, the holders 8 rotate together with the elastic bristles 9. The elastic members 9 rub together with abrasive grains 11 which disintegrate the fibers and thus separate the fibers from one another. The disintegrated shreds of fiber fall out through the meshes of the sieve 4 and fall down into the blender in the form of a "puff", which is evenly distributed in the forming mixture. The meshes 5 of the sieve 4 are cleaned by the elastic member bristles 9 which are permanently supported on the sieve by means of a movable coupling in the vertical direction between the shaft 6 and the bushing 7 with the holders 8 under the action of their gravity.

The abrasive grains - sand screenings 11, interacting with the elastic member bristles 9 and the surface of the sieve 4, clean the bristles 9 from adhering fiber fibers, protecting the brush bristles from contamination by a fluffy bristle.

Eccentric e-size brackets 8 of elastic members - bristles 9 - ensure fiber tearing over the entire surface of the screen 4 by eliminating the "unmixed" area that forms in the center of rotation, while the upper wedge surface 10 of the holders 8 reduces the possibility of tearing 8 on the upper surface 10.

This construction ensures the continuous fiber cleaning of the shredded fiber to the "fluff" fraction and the continuous cleaning of the mesh and elastic bristles during the fiberizing process.

Claims (3)

Definition of the Invention 1. A method of fiber-finishing, wherein the fiber is fed into and is flushed by a workpiece through a mesh sieve, characterized in that the mesh is carried out in a horizontal plane with abrasive grains larger than the meshes of the sieve, which is rubbed by an elastic member. 2. A device for fiber tearing consisting of a housing with a feed and discharge opening, fitted with a working shaft and a mesh sieve, characterized in that the working body is a brush-like elastic member disposed on the end of the vertical shaft and movable in a vertical direction, and the elastic brush elements rest on the sieve. 3. A device according to claim 2, characterized in that the resilient brush elements are eccentrically arranged in relation to the axis of rotation of the shaft and their top is wedge-shaped.