PL149920B1 - Apparatus for producing a cored yarn - Google Patents

Description

PATENT DESCRIPTION

POLAND

REPUBLIC

FOLK

Additional patent to patent no. Applied for: 86 02 11 Priority / P. 257943 /

149 920. LINE

Office Ρατβητοweyo hJUiRhKM ** n

Int. Cl. ⁴ D01H 1/13 D02G 3/36

OFFICE

PATENT

PRL

The application was announced:

Patent description published: 1990 06 30

11 02

Creators of the invention: Henryk Kubica, Henryk Urbanowski, Bogdan Kluska

The holder of the patent: Instytut Włókiennictwa, Łódź / Poland /

EQUIPMENT FOR THE PRODUCING OF THE CORE YARN

The present invention relates to a device for producing core yarns by the stationary vortex method. A device for producing yarns by the method of stationary vortex is known in the form of a cylindrical chamber with a set of inlet air intake guides, a channel supplying a stream of fibers and a partition with a socket-shaped convexity directed towards the center of the chamber, which allows for the reversal of the flow of swirled air in the chamber. Contrary to the previously known solutions, this chamber is also closed at the other end on the exhaust side by a flat partition. In this partition a tube is slidably mounted, the end of which is inside the chamber near the top of the bell-shaped protrusion of the partition at the other end of the chamber. This tube constitutes a channel for discharging from the chamber of the produced yarn in the direction of discharge of air streams from the zone of stationary vortex of the fibers. For the discharge of the sucked air out of the chamber, a channel is installed perpendicularly in its wall, near a flat partition with a tube embedded in it. This chamber produces staple yarns of high uniformity, which show an increase in strength compared to yarns produced in chambers with a different structure. However, core yarns cannot be produced in this chamber.

The device according to the invention is in the form of a cylindrical chamber which enables the production of core yarns. It turned out to be possible thanks to the fact that in the partition with the convexity of the known spinning chamber there is provided an inlet axial through-hole which allows the core to be introduced into the chamber from outside. This core is discharged from the chamber through a tube embedded in the other end of the chamber similar to the staple yarn produced in the known chamber. The stream of fibers per braid is introduced into the chamber through the same channel as the core. It has turned out that, despite the relatively short path of the core from the convexity of the septum to the mouth of the yarn discharge tube, the staple fibers form a proper braid on this core. In another embodiment of the chamber, the stream of fibers may be fed into the chamber

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149 920 through the known tangential feed channel which flows into the annular space between the bell-shaped convexity of the partition and the inner wall of the chamber. In such a chamber, the correct core braiding is also obtained.

The subject of the invention is shown in the attached drawing, in which Fig. 1 shows the chamber in longitudinal section with a tangential supply channel for feeding the stream of fibers, and Fig. 2 - the chamber in longitudinal section with the flow of fibers and the core fed through an opening in the partition with a convex socket. The device according to the invention is in the form of a cylindrical chamber 1 with a set of air intake blades 9 tangent to its circumference. At one end, the chamber 1 is closed by a partition 2 with a convexity facing its interior. The baffle 2 has an axial passage 3 for introducing the core and the stream of feed fibers into the chamber 1. At the other end, the chamber 1 is closed by a flat partition 4 in which a tube 5 is slidably mounted, constituting a channel 6 for discharging the yarn produced. The tube 5 is embedded in the axis of the chamber 1, and its end is near the top of the bell-shaped protrusion of the partition 2. In the vicinity of the partition 4 between it and the set of air guides 9 in the wall of the chamber 1, a channel 7 is perpendicular to it to lead the sucked out of this chamber. air. In another embodiment, the chamber 1 has a channel 8 tangential to its periphery for feeding a stream of fibers, which channel flows into the annular space between the bell-shaped convexity of the partition 2 and the wall of the chamber 1. In this embodiment, the opening 3 in the partition 2 serves only to guide the core.

Claims (2)

Patent claims A device for producing core yarns by the method of stationary vortex in the form of a cylindrical spinning chamber with a set of sucked air guides, which chamber at one end is closed by a partition with a convex convexity directed towards its interior, and at the other end by a flat partition in which it is slidably mounted a tube so that its end is inside the chamber near the top of the bell-shaped protrusion of the partition that closes the other end of the chamber, which tube constitutes a channel for discharging the yarn produced, with the chamber wall between the flat partition and the set of inlet air guides perpendicularly embedded in the outlet channel of the sucked off air, characterized in that the closing partition / 2 / with a convex convexity has a through, axial opening / 3 /, which is a channel for insertion into the chamber / 1 / of the core and the fiber stream. A device for producing core yarn, using the method of stationary vortex, in the form of a cylindrical spinning chamber with a set of sucked air guides, which chamber at one end is closed by a partition with a convex convexity directed towards its interior, and at the other end by a flat partition in which it is slidably mounted a tube so that its end is inside the chamber near the top of the bell-shaped protrusion of the partition that closes the other end of the chamber, which tube constitutes a channel for discharging the yarn produced, with the chamber wall between the flat partition and the set of inlet air guides perpendicularly embedded in the outlet channel of the sucked off air, characterized in that in the closing partition / 2 / with a convex convexity there is a through, axial opening / 3 /, which is a channel for inserting into the chamber / 1 / the core, and in the wall of the chamber / 1 / there is a tangential channel / 8 / for feeding a stream of fibers that flows into the rings of the space between this wall and the bell-shaped convexity of the partition / 2 /. 149 920