GB1441297A - False twisting device - Google Patents

Abstract

1441297 False twister SKF KUGELLAGERFABRIKEN GmbH 2 Oct 1973 [7 Oct 1972] 46019/73 Heading D1D In a false-twister, a plate carrying twist tube drive and support means is pivotally mounted at one of two pivoting points enabling the drive means to be spring-biased against opposite sides of a drive belt to reverse tube rotation. As shown, Fig. 1 (left hand), plate 1 carries magnet 6 urging twist tube 7 against plate-mounted rolls 4, 5 having wharves 8, 9. Plate 1 is pivoted on fixed carrier 12 about pivot 11, 17a and is urged clockwise by spring 18 so that wharve 8 engages belt 10, which is also engaged by carrier-mounted roller 23. To disengage wharve 8 the plate is manually pivoted anti-clockwise and spring 18 moves over-centre to urge the plate against wall 16. To reverse the rotation of tube 7, Fig. 2, the plate is repositioned to pivot about pivot 11, 7b, and spring 18 is repositioned to pivot the plate anti-clockwise so that wharve 9 engages the opposite side of the belt. Roller 23 is repositioned on the other side of the belt. Angle α never exceeds 80‹ to allow access to the tube support. In a modification (Figs. 4 and 5 not shown) two adjacent plates 1 are linked so that they may be pivoted in unison. Alternatively, Fig. 6 two plates 1 are pivotally mounted on arms 13a, b of common carrier 13 on opposite sides of the belt, so that their tubes are rotated in opposite directions. The plates are pivotally connected by link 7 so as to be capable of movement in unison, in opposite directions, to and from the beltengaging position. Link 27 may be loosely connected to pins 28, the resulting backlash in motion allowing the springs to act independently on their plates. Plates mounted on separate carriers may be similarly linked.