Patent ID: 6425236
Filing Date: 2002-07-30
Classification: D01H,D02G

Abstract:
A cabling and yarn double twisting spindle having pneumatic assistance for a threading up of the yarns to be handled by the spindle, comprising:a spindle shaft rotatably supportable in a support hub on a spindle bank, the spindle shaft having a central, axially extending spindle shaft bore; a package top secured against rotation and having a hollow spindle axial portion disposed in communication with the spindle shaft bore; a rotation plate secured to the spindle shaft for rotation therewith, the rotation plate having a radially extending yarn channel communicated with the upper end of the spindle shaft bore and with the lower end of the hollow spindle axial portion of the package top; and a pressurized air injector for injecting a pulse of air to effect a threading up of a yarn component delivered via the hollow spindle axial portion of the package top with another yarn component delivered via the spindle shaft bore, the pressurized air injector including a pressurized air supply conduit disposed within the spindle shaft such that the pulse of air injected by the pressurized air injector is operable to produce a suction flow in the hollow spindle axial portion of the package top and in the spindle shaft bore, wherein the spindle shaft includes an interior yarn channel and a ring chamber encircling the interior yarn channel at a spacing below the upper end of the interior yarn channel, the ring chamber being communicated by a channel with the injector.