CS214643B1

CS214643B1 - Pinning warp comb particularly for the gilting machines

Info

Publication number: CS214643B1
Application number: CS804780A
Authority: CS
Inventors: Vladimir Stork; Vladimir Stepanek
Original assignee: Vladimir Stork; Vladimir Stepanek
Priority date: 1980-11-24
Filing date: 1980-11-24
Publication date: 1982-05-28
Also published as: DD206501A3

Description

• Vynález se týká ojehleněho hřebene, zejména pro . posukovací stroje,. u něhož jsou jehly uchyceny svou patní ěástí v podélném nosiči.The invention relates to a needle comb, in particular for. drawing machines. in which the needles are attached with their heel part in the longitudinal carrier.

Současně používané ojehlené hřebeny, zejména u posuokvacích strojů, plní funkci držení vláken při jejich protahování a paralelizování vláken v pramenu při současném zestejnoměrňování a. snižování hmotnosti pramene. Jehly ojehlených hřebenů posukovacíóh strojů jsou různých jemností v závislosti na zpracovávaném materiálu pramene a druhu posukovacího stroje. Jehly jsou vsazeny do podélných nosičů, kde jsou ve své patní části zality např. cínem nebo jsou uchyceny v tvarových drážkách, a to jednotlivě, popřípadě po sekcích. Jehly jsou vytvořeny z kalené oceli nebo z. tvrzených plastických hmot.The currently used skewered combs, in particular in the shifting machines, fulfill the function of holding the fibers as they are drawn and parallelizing the fibers in the sliver while uniformizing and reducing the sliver weight. The needles of the stitched combs of the drawing machine are of different fineness depending on the material of the strand being processed and the type of the drawing machine. The needles are inserted into longitudinal carriers, where they are embedded in their heel part, for example with tin or they are fixed in shaped grooves, individually or in sections. The needles are made of hardened steel or hardened plastics.

Nevýhodami, ojehlených hřebenu, zvláště u posukovacích strojů se známými jehlami, je to že při posukování nedochází к odstranění nečistot, ale naopak, jehly mají schopnost u silně neurovnaných pramenů nečistoty tvořit tzv. порку. V takových situacích je pak třeba zařazovat několik posukovacích strojů za sebou, snížit rychlost a průtah, popřípadě pak zařadit z důvodu několikanásobného průchodu pramene posukovacími stroji dodatečné a vivo vání vláken.Disadvantages, oehehlených comb, especially in drawing machines with known needles, it is that the draft does not remove impurities, but vice versa, needles have the ability to heavily unbalanced strands of dirt to form the so-called порку. In such situations it is then necessary to put several drawing machines in succession, to reduce the speed and elongation, or to include additional and in vivo fiber feeding due to the multiple passing of the strand through the drawing machines.

Uvedené nevýhody jsou v podstatné míře odstraněny ojehleným hřebenem podle vynálezu, jehož podstata spočívá v tom, že'jehly jsou alespoň ve své střední volné části zakřiveny, přičemž svou zakřivenou částí jsou vyloženy alespoň nad jednou. stranou podélného nosiče.These drawbacks are substantially eliminated by the needled comb according to the invention, which consists in that the needles are curved at least in their central free part, and their curved part is lined at least over one. side of the longitudinal carrier.

Účinky se projevují zejména v oblasti působení jehel na vlákna pramene, která nejsou nadměrně namáhána, sníží se výskyt elektrostatického náboje, přičemž lze zvýšit průtah s ohledem na ulehčený' pohyb materiálu vláken mezi jehlami posukovacího stroje apod.In particular, the effects are manifested in the area of the needles on the strands of the strand which are not excessively stressed, the occurrence of electrostatic charge is reduced, and the elongation can be increased with respect to facilitated movement of the fiber material between the needles of the drawing machine and the like.

Další účinky vynálezu jsou patrny z následujícího popisu příkladu provedení ojehleného hřebene a z výkresu, kde značí obr. 1 příčný řez podélným nosičem s jehlami zakřivenými ve své střední volné části, obr. 2 částečný pohled na podélné nosiče-se zakřivenými jehlami, kde mezery mezi zakřivenýmiFurther effects of the invention can be seen from the following description of an embodiment of the needle comb and from the drawing, in which Fig. 1 is a cross-sectional view of a longitudinal carrier with needles curved in its central free section; Fig. 2 a partial view of longitudinal carriers with curved needles.

Claims

SUBJECT

Needle comb, in particular for drawing machines, in which the needles are fastened by their heel part in a longitudinal carrier, characterized in that the needles (3) are curved at least in their central free part, their curved part being lined at least over one side of the longitudinal carriers (J.).

Needle comb according to claim 1, characterized in that the needles (3) are lined with their curved portion on both sides of the longitudinal support (1), alternating with each other.

A needle comb according to claim 1, characterized in that the front free end of each needle (3) is straight through the central free portions of the needles of one longitudinal carrier forming inlets for the oppositely curved portions of the needles of the minor longitudinal carrier.

The needle comb consists of a longitudinal carrier 1 where, for example, tin 2 is attached to needles 3, which according to the invention are curved at least in their central free part. In the longitudinal carrier 1, the needles 3 are further arranged such that their curved, central free portion is lined at least over one side of the longitudinal carrier 1,

The needles 3 are concave in their central free portion with continuous curvature transitions at least to the front free ends, wherein the concavity of the central free portion of the needle 3 is e.g. For easy penetration of the spiked comb into the tufted unknown fiber strand, the needles 3 are straight at their forward free end and these forward free ends lie or are parallel to the longitudinal axis of the heel portions

4 needles 3.

The cross-sections of the needles 3 are of general shape, but symmetrical about at least one axis, generally perpendicular to the longitudinal carrier 1. Depending on the type of material to be processed, the needles 3 are circular, oval, droplet, square, rectangular or triangular and the like.

The gaps between the individual curved needles 3 deflected by their curvature to one side are arranged on the longitudinal carrier 1 to form inlets for the oppositely oriented curved central portions of the needles 3 of the secondary longitudinal carrier 1.

The rows of needles 3 on the needle combs, in the operation of the drawing machine, penetrate in a row into the feed strand of fibers, with their curved central portions penetrating or mutually interconnecting. they fit together, whereby the mutually overlapped curved portions of the needles 3 from mutually adjacent longitudinal carriers 1 create favorable gaps for the passage of said strand fibers and their parallelization, which is supported in particular by the curved portions of the needles 3 which to their alternate orientation, they alternately cause the fiber strand to split and densify.

And lies in or parallel to the longitudinal axis of the heel portion (4) of the needle (3) in the longitudinal carrier (1).

• 4. A needle comb according to claim 1, characterized in that the cross-sections of the needles (3) are of general shape symmetrical about at least one axis.

A needle comb according to claim 1, characterized in that the gaps between the curved central free portions of the needles (3) of one longitudinal carrier (1) form inlets for the oppositely oriented curved central portions of the needles (3) of the secondary longitudinal carrier (1).