RU2363778C1 - Method of flaxen stock preparation for scutching - Google Patents

Abstract

FIELD: textile; paper.

SUBSTANCE: method of flaxen stock preparation for scutching involves operations of stem layer formation and thinning, stem braking and refinement of raw stock strands by shaking them. Raw stock strand shaking is combined with strand straightening, parallel processing and relative disposition of adjoining layer areas against each other in a plane perpendicular to drum rotation axes. Processing is performed simultaneously for top and butt ends of strands without joining them before feeding to main scutching zone.

EFFECT: increased long fiber output and quality by refining raw stock strands before scutching.

2 dwg

Description

The invention relates to the field of primary processing of bast fibers, in particular to devices for machining bast fiber materials, and allows to increase the yield and quality of long fibers by enriching the raw strands and straightening them before the beating process.

Existing technologies for producing long fibers are based on the use of the double-sided scuffing process by alternately treating butt and apical sections of stems. It is known that at the initial stages of the beating process, the amount of waste is greatest. This is due to the fact that at the initial stages of processing, raw flaxseed is very sharp, the fibers are tangled and disoriented. Thus, the suitability of the layer for scuffing [1] is much less than possible.

This problem is relevant and its solution is of practical importance. To prepare the raw material for serving in a bobbin machine, various technical solutions have been proposed.

A known method of preparing linen trusts for scuffing, implemented using a device for processing bast-fiber material [2], containing means for mechanical de-sharpening the hanging strands of fibrous material, located one against the other on both sides of the horizontal rail, and mounted above the rail with the possibility of contact with its working surface vertically closed pressure conveyor.

The disadvantage of this method is the complexity of the structural design of the device, for example, the mandatory presence of blasting nozzles in the device for pressing the hanging strands of fiber to the grate is required.

There is also known a method of preparing flax trusts for scrubbing, including the operations of forming a layer of stems, thinning it, scrubbing the stems and enriching the strands of raw material by shaking them, which is implemented using a device for processing bast-fiber material [3].

The main disadvantage of this design method is the lack of conditions for parallelization and straightening of the strands of raw material before being fed into the bobbin machine.

The specified method, which is implemented using the known solution [3], is the closest to the claimed one and therefore can be selected as a prototype.

The technical task of the invention is the creation of additional conditions for the enrichment of strands of raw by shaking them and simultaneously straightening them.

The stated technical problem is achieved by the fact that when preparing a flax trust for scrubbing, including the operations of forming a stalk layer, thinning it, scrubbing stems and enriching the raw strands by shaking them, according to the invention, shaking the raw strands is combined with their straightening, parallelization and relative movements of adjacent sections of the layer of the layer relative to each other, and these effects are carried out simultaneously for the vertex and butt ends of the strand without connecting them to each other before feeding into the zone SIC beating.

The raw strands are subjected to shaking and straightening effects in an additional raw enrichment device, which is located between the milling machine and the bobbin machine.

The invention is illustrated by drawings.

Figure 1 shows a diagram of a device for enriching raw. The device consists of a frame 1, a pair of drums 2 and a clamping conveyor 3, in which a strand of raw 4 is rigidly fixed. The drum consists of a beater 5 and a beater bar 6.

Figure 2 presents a view of the beat bar.

The operating procedure of the device is as follows: the raw layer after the grinding machine enters the clamping conveyor 3 and is processed by the drums 2. The conveyor moves progressively and moves the material along the device. The drums rotate, and the direction of rotation of the drums is opposite to the direction of rotation of the drums in the main bobbin machine. During processing, the material experiences shaking effects, which leads to the removal of the bulk fire from the raw layer with simultaneous straightening and parallelization of the strands. The fire is removed through the pneumatic transport hopper 7.

The decrease in the content of the fire in the material before the main scuffing will positively affect the quality of the final product - long fiber. When using this device, material with a lower content of bonfire will fall into the bobbin machine. This will make it possible to reduce the intensity of impacts during the main scuffing, which in turn will increase the yield of long fibers.

The parallelization and straightening of the strands of raw material, carried out in this method, allows to reduce the angular disorientation of the stems in the layer, and therefore, to increase the suitability of the stalk layer for scuffing. The higher the suitability of the layer for beating, the more stems will fall under the clamping conveyor of the main beating machine, thereby increasing the yield of long fiber.

The relative movement of the sections of the layer relative to each other in a plane perpendicular to the axes of rotation of the drums, can be carried out, for example, due to the wave-like shape of the back edge of the beat bar (figure 2). This will lead to additional intensification of flax processing and more effective removal of the bulk fire.

Thus, the use of this method of preparing flax trusts for scuffing will increase the yield and quality of long fibers, while not requiring large capital costs for implementation.

Information sources

1. Ipatov A.M. The theoretical basis of the mechanical processing of stalks of bast crops: textbook. manual for universities.- M .: Legprombytizdat, 1989.

2. USSR copyright certificate No. 652253, cl. D01B 1/16.

3. Copyright certificate of the USSR No. 1141119 A, cl. D01B 1/14; D01B 1/20.

Claims (1)

A method of preparing a linen trust for beating, including the operations of forming a stalk layer, thinning it, washing stems and enriching the raw strands by shaking them, characterized in that the shaking of the raw strands is combined with their straightening, parallelization and relative movements of adjacent sections of the layer relative to each other in the plane perpendicular to the axes of rotation of the drums, and these effects are carried out simultaneously for the vertex and butt ends of the strand without connecting them to each other before serving onu of the main beating.

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