RU2446237C1 - Method and device for preparation of flax retted stalks for scutching - Google Patents

Abstract

FIELD: textiles, paper.

SUBSTANCE: method involves an operation of enrichment of strands of broken flax by pulling in a horizontal layer through the rotating working edges which trajectory of movement is parallel to the direction of traffic flow and force of its pulling with equal linear velocity of the edges and the flow. The device comprises a clamping conveyor 1, the bottom 2 and the upper 3 rows of console horizontal shafts with scraping disks 4 mounted on the shafts 2, 3, perpendicular to their axes. The upper row of shafts 3 is equipped with a device 5 for the ability to move with respect to the lower row of shafts 2. The clamping conveyor 1 is located at an acute angle in the opposite direction of flow in a plane parallel to the axes of shafts 2 and 3, with the possibility of changing the angle of inclination through the device 6. The surface of the working edges of the discs 4 has a ripple.

EFFECT: improved quality and efficiency of preparation of flax stock for scutching.

3 cl, 3 dwg

Description

The invention relates to the field of primary processing of bast fibers, and in particular to methods and devices for preparing flax trusts for mechanical beating.

A method of preparing flax trusts for beating by a known device for processing bast-fiber material (A.S. USSR No. 1141119 A, class D01B 1/14; D01B 1/20, 1985) includes forming a stalk layer, thinning it, washing stems and enriching the strands of flax cheese by shaking them.

A disadvantage of the known method of preparing flax trusts for beating is the impossibility of creating conditions for parallelization and straightening of strands of raw flax before feeding into the beater.

A known method of preparing a linen trust for beating, including the operations of forming a layer of stems, thinning it, washing stems and enriching strands of raw flax by dragging them in a horizontal layer through rotating working edges, implemented using a device for preparing bast-fiber material for beating (Levitsky I. N. New in the de-sharpening of bast-fiber materials. Theory, experiments, technological solutions. Volume II. / I.N. Levitsky. - Kostroma. - Printing House named after M. Gorky of the Office of the Press and Public Information Administration of the Kostroma Region, 1994. - S.99-101, prototype).

According to this method, scraping is applied to de-sharpen raw flax by dragging a layer of raw flax through rotating working edges located at an acute angle to the direction of flow. The effectiveness of this method of de-sharpening is small, since when the layer moves with a clamping conveyor relative to the working edges, lateral forces arise, leading to unloading of the raw material and worsening of the processes of fire separation. In addition, the unloading of strands of raw flax, the sharpness of the latter lead to their increased tension and loss of fiber in the waste, which also reduces the efficiency of the process.

A device is known for preparing a linen trust for scrubbing in a stream (I. Levitsky. New in decontamination of bast-fiber materials. Theory, experiments, technological solutions. Volume II. / I. N. Levitsky. - Kostroma. - Printing House named after M. Gorky Management Press and Mass Media Administration of the Kostroma Region, 1994. - S.99-101, prototype), comprising a clamping conveyor located perpendicular to it the lower and upper rows of cantilever horizontal shafts with working edges.

A disadvantage of the known device is that the clamping conveyor and the working edges of the horizontal shafts provide dragging the layer of strands of raw flax at an acute angle to the direction of flow, as a result of which forces arise, leading to unloading and poor structure of the layer.

The objective of the present invention is to provide a method and device for preparing linen trusts for beating, which improves the quality and effectiveness of preparing the material for beating.

The problem posed by the invention is solved in that in a method for preparing a linen trust for beating, including the operations of forming a stalk layer, thinning it, scrubbing the stems and enriching the strands of raw flax by dragging in a horizontal layer through rotating working edges, the trajectory of the working edges and effort dragging the horizontal layer parallel to the direction of flow, and the efforts of dragging are carried out at equal linear velocity of the edges and flow.

The claimed method of preparing flax trusts for beating increases the cleaning efficiency, since when pulling strands of raw flax in a horizontal layer through rotating working edges, the trajectory of which and the pulling forces of the horizontal layer are parallel to the direction of flow, there are no lateral forces acting on the material, leading to the formation of raw seals, subsequent destruction of fibrous complexes and their irretrievable losses. The efforts of pulling the horizontal layer are carried out at an equal linear speed of the edges and flow, which ensures a consistent and reliable operation of the enrichment process of strands of raw flax.

The claimed method of preparing flax trusts for beating is implemented by a device containing a clamping conveyor, the lower and upper rows of cantilever horizontal shafts perpendicular to it with working edges formed by disks mounted on the shafts perpendicular to their axes, and the clamping conveyor is at an acute angle to the side opposite to the movement of the flow to a plane parallel to the axis of the shafts, with the possibility of changing the angle of inclination, and the surface of the working edges has a waviness.

The claimed device improves the conditions for the enrichment of strands of raw flax, in which the scraping between the rows of rotating working edges is carried out with their parallelization and straightening due to the fact that the working edges are formed by disks mounted on shafts perpendicular to their axes, and the clamping conveyor is located under a sharp angle to the side opposite to the direction of flow to a plane parallel to the axes of the shafts, with the possibility of changing the angle of inclination. The waviness of the surface of the working edges provides additional shaking of the strands, thereby providing an improvement in the effect of sanding.

The claimed invention is illustrated by drawings.

Figure 1 shows a schematic diagram of a device for preparing linen trusts for scuffing, top view; figure 2 is the same, a section aa in figure 1; figure 3 is the same, view In figure 1.

The method of preparing linen trusts for scuffing includes the following operations:

- the formation of a layer of stems,

- thinning of the stalk layer,

- Promina stems,

- enrichment of strands of raw flax by pulling in a horizontal layer through rotating working edges, the path of movement of which and the pulling forces of the horizontal layer are parallel to the direction of flow, and the pulling forces are carried out at an equal linear speed of the edges and flow.

The claimed method of preparing flax trusts for beating is implemented by a device comprising a clamping conveyor 1, lower 2 and upper 3 rows of cantilever horizontal shafts with scraper discs 4 mounted on shafts 2, 3 perpendicular to their axes. The upper row of cantilever shafts 3 is equipped with a device 5 for moving relative to the lower row of shafts 2, and the clamping conveyor 1 is located at an acute angle to the side opposite to the direction of flow to a plane parallel to the axes of the shafts 2, 3, with the possibility of changing the angle of inclination by means of the device 6 The surface of the working edges of the discs 4 has a wave.

A device for preparing flax trusts for scuffing works as follows.

The pre-formed and washed layer of raw flax 7 enters the clamping conveyor 1 and is fed into the scraping field formed by the working edges of the disks 4 of the lower and upper rows of cantilever horizontal shafts 2, 3, while it surrounds the cylindrical surface of the disks 4, rotating in the direction of movement of the material with linear speed clamping conveyor. The angle of coverage of the discs 4 with raw flax 7 is regulated by moving the upper row of cantilever shafts 3 in the vertical plane with the device 5. The surface wave edges of the working edges of the discs 4 additionally shake the strands of raw flax 7, improving the effect of sanding. The accumulation of raw flax 7 occurs simultaneously with transportation when the clamping conveyor 1 is arranged at an acute angle to the side opposite to the direction of flow to the plane parallel to the axes of the shafts 2, 3 and the possibility of changing the angle of inclination of the device 6. Regulation of the angle of inclination and linear speed of the clamping conveyor 1 determines the intensity of scraping. After dragging in a horizontal layer through the rotating working edges of the disks 4, the raw flax 7 with entangled fiber complexes and a large content of free bonded bonfire is cleaned of the bonfire, the fibrous complexes are paralyzed and straightened.

The claimed method and device for preparing flax trusts for beating allows you to get the material in a more prepared form according to the level of taperedness, with improved structuring of the layer and with less fiber loss in waste, which ultimately provides improved quality and efficiency of the preparation of the material for beating.

Claims (3)

1. A method of preparing a linen trust for scrubbing in a stream, including the operations of forming a layer of stems, thinning it, squashing stems and enriching strands of raw flax by dragging in a horizontal layer through rotating working edges, characterized in that the trajectory of movement of the working edges and the pulling force of the horizontal layer parallel to the direction of flow, and the efforts of pulling it are carried out with equal linear velocity of the edges and flow. 2. A device for preparing flax trusts for scrubbing in a stream, comprising a clamping conveyor located perpendicular to it lower and upper rows of cantilever horizontal shafts with working edges, characterized in that the working edges are formed by disks mounted on the shafts perpendicular to their axes, and the clamping conveyor is located at an acute angle in the direction opposite to the direction of flow, to a plane parallel to the axes of the shafts, with the possibility of changing the angle of inclination. 3. The device for preparing linen trusts for beating according to claim 2, characterized in that the surface of the working edges has a waviness.

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