Apparatus for transferring weft threads in a wrap knitting machine
AssigneeKarl Mayer Textilmaschinenfabrik GmbH
InventorsGerhard Hittel, Hand Fiedler, Hans Groh
Life of this patent
Estimating the term…
Abstract
There is provided a novel system for increasing the accuracy and delivery speed of weft thread insertion in warp knitting machines. The system includes a novel transport arrangement for providing magazine weft threads proximate to the needle bar and a knockover sinker bar whose knockover sinkers are operable to pass between the needle spaces to grip the weft thread. The system is most suitably employed in a warp knitting machine producing a fabric containing an intermediate layer such as a non-woven fabric overlayed with weft threads. This machine comprises a needle bar, at least one guide bar and an arrangement for providing the intermediate layer between the needles and the guide bar.
Claims11
A warp knitting machine for providing a fabric having magazine weft threads, said machine having:
- a plurality of needles;
- at least one needle bar;
- at least one guide bar;
- a drive means for reciprocatingly actuating said needle bar;
- and a weft thread transfer means comprising:
- a transport means for successively carrying said magazine weft threads toward said needle bar;
- a knockover sinker bar mounted in said machine and operable to reciprocate therein;
- and
- a plurality of knockover sinkers mounted on said knockover bar and reciprocatable therewith for periodically knocking over stitches formed by said needles, at least a predetermined number of said knockover sinkers having:
- gripping means passable between adjacent needles for gripping an adjacent one of said weft threads, said knockover sinker bar being movable upon a path between a first position in which the gripping means grips an adjacent one of the weft threads provided by said transport arrangement behind said needles, and a second position in which the gripping means bring said adjacent one of the weft threads into said needles.
Dependencies are inferred from the claim text.