Back to results
US 6,308,507 B1Granted
Method of and apparatus for producing a textile yarn
AssigneeZinser Textilmaschinen GmbH
InventorFriedrich Dinkelmann
Life of this patent
Estimating the term…
Abstract
Singled fibers from a fiber strand, separated by a rotor, are collected by suction on a continuously moving surface of a perforated belt or rotary drum. The fiber packet is not formed with a twist in this region and, only upon transfer to a downstream region is the twist applied, e.g. by a ring spindle.
Claims15
A method of making a twisted textile yarn comprising the steps of:
- (a) separating a fiber strand consisting of a multiplicity of textile fibers by feeding said fiber strand into contact with a fiber-separating rotor into individual fibers;
- (b) drawing said individual fibers against a perforated fiber collecting surface by applying suction through perforations in said surface to continuously collect the individual fibers as parallel and drawn-out fibers into a sliver without twisting of said sliver on said surface, and in which:
- (b1) the collected individual fibers are assembled into a fiber package on an upstream zone of said surface, and
- (b2) the fiber package is reduced in cross section at a downstream zone of said surface;
- (c) continuously advancing the untwisted sliver from said fiber collecting surface to another location;
- and
- (d) twisting with a ring spinning apparatus the sliver at said other location to consolidate said sliver into a yarn so that twist is imparted to said sliver initially at said other location.
4 more elements
An apparatus for making a twisted textile yarn comprising:
- means including a fiber-separating rotor for separating a fiber strand consisting of a multiplicity of textile fibers into individual fibers;
- an endless traveling perforated fiber collecting surface having a narrow strip of perforations traveling over at least one suction opening in a collecting region for continuously collecting the individual fibers as parallel and drawn-out fibers on said surface into a sliver without twisting of said sliver on said surface and for compacting said sliver on said surface;
- means for driving said surface and continuously advancing the untwisted sliver from said collecting region to another location;
- and
- means at said other location for twisting with a ring spinning apparatus the sliver to consolidate said sliver into a yarn so that twist is imparted to said sliver initially at said other location.
2 more elements
An apparatus for making a twisted textile yarn comprising:
- means including a fiber-separating rotor for separating a fiber strand consisting of a multiplicity of textile fibers into individual fibers;
- an endless traveling perforated fiber collecting surface having a narrow strip of perforations traveling over at least one suction opening in a collecting region for continuously collecting the individual fibers as parallel and drawn-out fibers on said surface into a sliver without twisting of said sliver on said surface and for compacting said sliver on said surface;
- means for driving said surface and continuously advancing the untwisted sliver from said collecting region to another location;
- and
- means at said other location for twisting the sliver to consolidate said sliver into a yarn so that twist is imparted to said sliver initially at said other location, said surface passing over a suction duct formed with a multiplicity of suction openings adapted to communicate with said perforations.
2 more elements
An apparatus for making a twisted textile yarn comprising:
- means including a fiber-separating rotor for separating a fiber strand consisting of a multiplicity of textile fibers into individual fibers;
- an endless traveling perforated fiber collecting surface having a narrow strip of perforations traveling over at least one suction opening in a collecting region for continuously collecting the individual fibers as parallel and drawn-out fibers on said surface into a sliver without twisting of said sliver on said surface and for compacting said sliver on said surface;
- means for driving said surface and continuously advancing the untwisted sliver from said collecting region to another location;
- and
- means at said other location for twisting the sliver to consolidate said sliver into a yarn so that twist is imparted to said sliver initially at said other location, said surface passing over a suction duct formed with a suction opening adapted to communicate with said perforations and having a width which is greater close to where said fibers deposit on the surface and narrowing in a travel direction of said surface to a region of compaction of the sliver.
2 more elements
Dependencies are inferred from the claim text.