Method and apparatus for removing yarn package and transport adapter from a spindle assembly of a yarn processing machine and securing the free end portion of yarn for transport
AssigneePalitex Project Company GmbH
InventorSiegfried Inger
Life of this patent
Estimating the term…
Abstract
For an automated removal of a package and transport adapter with a hollow core, on which at least one empty winding tube or a winding tube holding a residual length of yarn is inserted, from a yarn processing station, in particular from the protective pot of a two-for-one twisting spindle, the present invention provides for an operating method and an apparatus, so as to obtain for a troublefree further transportation of the package and transport adapter a yarn length of a defined length from the yarn end extending to a not-fully unwound winding tube, which yarn length is inserted into the hollow shaft of the package or transport adapter.
Claims18
Method for securing a free end portion of yarn extending from a residual amount of yarn on a yarn package tube carried by a hollow carrier and transport adapter during removal thereof from a spindle assembly of a two-for-one twister textile yarn processing machine after processing of the yarn from the package to prepare the adapter and yarn package tube thereon for transport away from the spindle assembly;
- said method comprising the steps of cutting the free end portion of yarn extending from the yarn package tube to a desired length defining a terminal part, and inserting at least the terminal part of the cut length of the free end portion of yarn into the hollow interior of the carrier and transport adapter for securing the free end portion of yarn.
In a spindle assembly of a two-for-one twister textile yarn processing machine having a hollow spindle for passing of yarn therethrough during processing, and a hollow carrier and transport adapter removably positioned on said spindle and having an outer circumference with at least one hollow yarn supply package mounted thereon and defining an upper end extending above the yarn package;
- the combination therewith of means for removing the carrier and transport adapter from the spindle assembly after yarn processing of the supply package has been completed and for securing a free end portion of yarn which extends from a residual amount of yarn on the substantially empty yarn supply package and into the hollow spindle to prepare said adapter for transport away from said spindle assembly, said means including
- movable gripper arm means for moving to said spindle assembly and gripping said adapter on the outer circumference at an upper end thereof above said yarn package and for moving away from said spindle assembly for removing therefrom said adapter and substantially empty yarn supply package;
- cutting means for cutting the free end portion of yarn extending from said substantially empty yarn supply package to a desired length defining a terminal part prior to removing said adapter and substantially empty yarn supply package from said spindle;
- movable suction arm means for moving to said spindle assembly and into position at the upper end of said adapter and above said gripper means for removing the cut-off part of the free end portion of yarn after cutting thereof;
- and
- compressed air injector yarn threading means in said hollow spindle for being actuated for inserting at least the terminal part of the cut length of the free end portion of yarn into the hollow interior of said adapter for securing the free end portion of yarn.
Dependencies are inferred from the claim text.