Steam drawing apparatus

摘要

A steam drawing apparatus for providing pressurized steam on running yarn to draw the yarn, comprising a steam chamber; first seal chamber adjacent to a yarn entrance of the steam chamber; and second seal chamber adjacent to a yarn exit of the steam chamber, first seal chamber and second seal chamber are each provided with a labyrinth seal section having a plurality of plate pieces, first yarn-position regulating bar is provided to prevent the running yarn from touching the plate pieces, first yarn-position regulating bar extends horizontally intersecting the running direction of the yarn at right angles, and a horizontal plane passing through the point of the first yarn-position regulating bar closest to the yarn is set at least 0.1 mm closer to the yarn than a horizontal plane passing through the tip of the plate piece closest to the yarn.

主权项

1. A steam drawing apparatus for providing pressurized steam on running yarn to draw the yarn, comprising:
a steam chamber into which pressurized steam is introduced; a first seal chamber adjacent to a yarn entrance of the steam chamber; and a second seal chamber adjacent to a yarn exit of the steam chamber, wherein the steam chamber has a steam introducing portion to introduce the steam, the first seal chamber and the second seal chamber are each provided with a labyrinth seal section having a plurality of plate pieces extending respectively from an upper inner wall surface and a lower inner wall surface toward the yarn, a first yarn-position regulating bar is provided to prevent the running yarn from touching the plate pieces, the first yarn-position regulating bar extends horizontally intersecting the running direction of the yarn at right angles, and is located on an other side of the yarn from the steam introducing portion, while being positioned between the steam introducing portion and a plate piece of the second seal chamber located on a same upper side of the yarn and/or a same lower side of the yarn as the first yarn-position regulating bar and positioned closest to the steam chamber, and a horizontal plane passing through a point of the first yarn-position regulating bar closest to the yarn is set at least 0.1 mm closer to the yarn than a horizontal plane passing through a tip of the plate piece closest to the yarn among the plurality of the plate pieces of the second seal chamber on the same upper or lower side of the yarn as the first yarn-position regulating bar.