Device for laying of an endless thread during transport through a working field of a textile machine

摘要

1,138,884. Transporting device for flexible elements. ZINSER-TEXTILMASCHINEN G.m.b.H. 4 Nov., 1966 [5 Nov., 1965], No. 49622/66. Heading B5B. [Also in Divisions B3 and D1] In an apparatus for transporting an elongated flexible element 14 through a treatment area such as when the element is heat stretched, said element is oscillated on a heating block 17, the oscillation being transverse to the direction of movement of the element, said oscillation avoiding the formation of a groove in the heating block and consequent damage to the flexible element. The element is delivered to a first contact point 11 on a transporting roller 12, and is laid in several loops about said transporting roller and a control roller 13, which has its axis inclined at a small angle to that of the transporting roller, and extends from the final point of contact 16 on said transporting roller to a first point of contact 20 on a second transporting roller 19, the two transporting rollers being driven at different speeds, thus causing stretching of the element to occur. An operating means 37a having a shifting bar 32, is connected to a mounting means (not shown) for the control roller, by a lever arm 31, which also engages the control roller. On reciprocating said bar the mounting means is angularly displaced together with the control roller so that the axis of the control roller moves along an imaginary cone surface sector, corresponding to a movement of the said axis in two mutually perpendicular directions. Movement of the control roller by the operating means in this manner causes loops 15 to slide backwards and forwards along the rollers, thus causing the flexible element to oscillate across the heating block. Axial displacement of the last loop and last point of contact on the second transporting roller 19 may be prevented by connecting the first mounting means with a similar mounting means (not shown) for the second control roller 22, by either a connecting rod or chain, so that the second control roller is angularly displaced in the manner described but with said second control roller inclined in the opposite direction to the first control roller. Flexible elements mentioned include, threads, rope, synthetic filament, yarn, or wire.