RU2206646C1 - Method for mechanical stapling of flax filament in sliver - Google Patents

Abstract

FIELD: textile industry. SUBSTANCE: method involves forming filament flow in the form of sliver; clamping sliver and stapling by double- sided beating of filament in direction perpendicular to silver advancement direction; simultaneously acting upon certain part of sliver from two sides by air streams in stapling zone. Beating of sliver by beating devices in direction perpendicular to sliver advancement direction results in intensive effect of sliding flexure and, accordingly, effective slivering and separation of individual elementary flax filaments or complexes of combinations of technical filaments in stapling zone without damaging and destroying of filaments. Beating actions facilitate intensive stirring and arrange filaments in parallel with one another. Also, simultaneous action of air streams upon treated silver part provides effective separation of foreign, non-fibrous contaminants from fibers. EFFECT: increased efficiency and improved quality of stapled flax filaments in sliver. 1 dwg

Description

 The invention relates to the textile industry, and in particular to a method for stapling textile fibers.

 A known method of stapling fibers, including the formation of a fibrous layer of oriented along the entire length of the fibers and their stapling by machining (RU 2090668 C1, 09/20/1997).

 However, when using this method, there are many fibrous impurities on the surface of the fibers after they are stapled, which reduce the efficiency of processing the fibers in a mixture with other fibers in the production of yarn.

 A known method of mechanical stapling of flax fiber in a tape, which consists in the formation of a stream of fibers in the form of a tape, its clamping and stapling by double-scuffing the fiber (RU 2124593 C1, 10.01.1999).

In this method, a blow to a strand of fibers is not carried out in a direction perpendicular to its movement. A strand of fibers after the first blow with a beat unfolds in the direction of movement of the beat and the oncoming blow thus will not occur at an angle of 90 ^o . Next, the fiber bends along the next lath of the beat. The process will be repeated in a similar manner, as a result of which the efficiency of pinching and separating fiber complexes is reduced.

 The objective of the invention is to provide a method of mechanical stapling of flax fiber in the tape, providing a technical result, which consists in increasing the efficiency of pinching and separation of fiber complexes from the tape.

 This technical result in a method for mechanically stapling flax fiber in a tape, which consists in forming a stream of fibers in the form of a tape, clamping and stapling it by double-sided scuffing of the fiber, is achieved by stapling by double-sided scuffing of the fiber in a direction perpendicular to the movement of the tape, while bilateral impact on the processed part of the tape by air flows in the staple zone.

 The drawing shows a diagram of a device for implementing the method.

 According to the method, the flow of flax fibers 1, formed in the form of a tape as a result of, for example, carding and tape formation, falls between the rotating, spring-loaded corrugated feed grinding rolls 2. With their help, the tape is transported to the staple-freeing zone, which is limited by the casing 3, and fiber retention during stapling. After interacting with the rollers 2, the fibrous tape, being in the staple zone, is subjected to the double-sided impact of the bobbing beat 4. Moreover, the bobbing effects are carried out in a direction perpendicular to the movement of the tape. At the same time, the part of the tape processed in the stapling zone is subjected to the two-sided impact of air currents 5, which ensures more complete separation of extraneous, non-fibrous impurities from the fiber and helps to straighten the fibers after each bobbing effect, which increases the efficiency of the beating process, and hence the stapling.

 Due to the action of beaten beaters on the fibrous tape in the direction perpendicular to its movement, the most intense effects of the sliding bend are ensured and, as a result, effective pinching and separation of individual elementary flax fibers or their complexes from the totality of technical fibers located in the staple zone, without damage and destruction themselves fibers. Perpetrated boggling shakes and parallelizes the fiber intensively. At the same time, the simultaneous effect of air flows 5 on the part of the tape being processed in the staple zone provides more efficient separation of foreign, non-fiber impurities from the fiber. The obtained staple fiber is forcibly removed from the treatment zone, for example by suction of the fiber-air mixture, and is discharged into the collection hopper using pneumatic conveying. The simultaneous use of scuffing and air impacts on the fiber provides ease of implementation of the method.

 Thus, this method allows to obtain flax stapled fiber with non-fiber impurities separated from it. The increased purity of the fiber, in turn, leads to its more efficient use in the production of yarn mixed with other fibers, for example wool, cotton and chemical fibers.

Claims (1)

 The method of mechanical stapling of flax fiber in a tape, which consists in forming a stream of fibers in the form of a tape, clamping and stapling by double-sided scuffing of the fiber, characterized in that the stapling is carried out by two-sided scuffing of the fiber in the direction perpendicular to the movement of the tape, with simultaneous two-sided impact on the processed part of the tape by air flows in the staple zone.