RU1798374C - Filamentous material grinding device - Google Patents

Abstract

A device for grinding fibrous materials relates to light industry, mainly to shoe and leather goods manufacturing. The device includes two rolls mounted on a frame and connected by a bevel gear. The rolls are mounted in a pallet that is rotatable around its axis. Planks with needle and serrated headsets are placed on the rolls and the pallet. 4 ill.

Description

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FIG. 1

The invention relates to light industry, in particular to equipment for processing dense fibrous materials, for example, leather waste.

The aim of the invention is to achieve high homogeneity of the obtained product, as well as reducing energy consumption, increasing the efficiency of the process of razvoneniya dense fibrous materials

In FIG. 1 shows a cross section of a device; in Fig.2 is a top view; in FIG. 3 - fastening of strips to a rotor and the pallet; in FIG. 4 is a diagram of the effect of forces on the material in the working area.

The device comprises rolls 1. located on the frame 2 and interconnected by a bevel gear 3 and receiving rotation from a drive roll driven by a chain transmission 4 from an electric motor 5 mounted on the frame 2. The rolls are installed with a gap in the pallet 6, which leads ; in rotation by means of a cylindrical gear 7 from an electric motor 8.

An annular reflective shield 9 is also mounted on the frame 2, in the lower part of which there are installed air intakes 10 of the pneumatic transport system, / 1 designed to output the dissolved fiber. For loading material, a hopper 11 is mounted on the frame 2. On the inner surface of the pallet 6 and the outer surface of the rolls 1, screws with needle and serrated headsets are fixed by means of screws.

A device for grinding fibrous materials works as follows.

Waste to be ground in the form of large undeveloped fractions is loaded into hopper 1.1. When particles enter the pan, they are entrained by centrifugal forces from the center to the periphery and fall into the interaction zone between the headsets of the opposing strips of the rolls 1 and the pallet 6. Due to the fact that the rollers and the pallet rotate in perpendicular planes, the material is crushed much more easily. The material undergoes multiaxial tension in the working area. With this type of impact, it collapses much more easily, due to the loss of possibility elastically elongates under this type of loading. Passing the working area, the material hits the reflective shield 9 and, falling on the pallet 6 again, is carried away by

repeated cycles, the negative pressure in the pneumatic conveying system is set so that while passing through the intake of the mixture of particles only light particles with a small mass are entrained from it and

high windage, i.e., loose fiber, and large particles and undeveloped pieces by centrifugal forces of rotation were discarded for repeated cycles. The independence of the drive rolls and the pallet allows you to set different grinding modes, varying engine speeds, thereby allowing the use of a device for grinding various types of raw materials in density and size

particles.

Claims (1)

SUMMARY OF THE INVENTION A device for grinding fibrous materials containing a working body rotatably disposed in the housing, and grinding elements in the form of strips with needle and serrated headsets, a loading hopper, an air suction pump and a drive, characterized in that, in order to obtain a highly homogeneous fibrous mass, the housing is made in the form of a pallet with the possibility of rotation around its axis in a direction perpendicular to the direction of rotation of the working body, which consists of two rolls installed with a gap in the housing, placed on the frame and interconnected by a bevel gear. Fm. 3 mp ffrtff Fig.it