Patent ID: 6473998
Filing Date: 2002-11-05
Classification: F26B

Abstract:
Device for pre-drying textile filaments after wet treatment by applying simultaneously to a layer of wet filaments passing by on a support conveyor with a permeable conveying surface, both a mechanical squeeze-drying action and a pressure difference by circulation of air through said layer, comprising:a support conveyor for the layer of filaments, with a permeable conveying surface; a mechanical squeeze-drying means applied to the layer of filaments passing by on the support conveyor, comprising a permeable cloth guided on guide cylinders and extending above the support conveyor for the layer of filaments, the width of this cloth being greater than a width of the permeable cloth forming said support conveyor, at least one of the guide cylinders of the mechanical squeeze-drying means being provided with a means for driving it in synchronism with the support conveyor; and a means for application of a pressure difference by a circulation of air through said layer; a chamber for recovering the expelled moisture comprising at its upper portion the support conveyor; wherein the drive means in synchronism with the support conveyor comprises one of a chain and a toothed belt coacting with a corresponding pulley secured to one of the guide cylinders and with a pulley secured to a movement reverser connected to a guide cylinder of the permeable cloth forming the support conveyor.