摘要:
Fiber stretching device for roving frames, which comprises: at least a first cylinder (1) and a second cylinder (2), both motorized, disposed in parallel in fixed positions; and a plurality of pressing arms (3), disposed in perpendicular to the motorized cylinders (1, 2) and provided with first rollers (31) and second rollers (32), both freely rotating, and upper bags (4) which embrace the corresponding freely rotating second roller (32) and support means (41) of said upper bags. The upper bags (4) press the fibers to stretch (F) directly against support zones (21) of the second motorized cylinder (2), and wherein said device does not have lower bags for the support of the upper bags (4), nor of a static track for the support of said lower bags.
摘要:
Die Erfindung betrifft ein Riemchenstreckwerk für eine Spinnmaschine, insbesondere Luftspinnmaschine, mit einem über eine antreibbare Unterwalze geführten Unterriemchen, das im Bereich einer Verzugszone, insbesondere einer Hauptverzugszone durch einen Gleitabschnitt einer Riemchenbrücke abgestützt ist. Um ein Riemchenstreckwerk bereitzustellen, bei dem unter Beibehaltung einer hohen Antriebsleistung eine zuverlässige Führung des Unterriemchens gewährleistet ist, ist vorgesehen, dass die Riemchenbrücke zur Unterriemchenführung einen Leitungsabschnitt mit Führungsmitteln zur seitlichen Führung des die Riemchenbrücke umlaufenden Unterriemchens aufweist.
摘要:
A special yarn spinning apparatus adapted for use in a spinning machine includes a plurality of apron draft devices that are configured to switch fiber bundles to be fed, respectively. The special yarn spinning apparatus further includes a joining device and an anti-twist device. The joining device joins a training end of the fiber bundle fed from at least one of the apron draft devices which has operated before switching the feed and a leading end of the fiber bundle fed from another of the apron draft device which has started after switching the feed. The anti-twist device holds and delivers the fiber bundle at a position downstream of the joining device to prevent propagation of twist from a twist device to the joined fiber bundles in the joining device.
摘要:
The invention relates to a drafting system (10) for a knitting machine for producing a fiber lattice from a rove having double closers guided via closer rollers (16) and an exit roller pair (17), wherein the closer rollers (16) and the exit roller pair (17) each have a pressure roller (16.2, 17.2) and an electromotively controlled drive roller (16.1, 17.1) and the rollers (16.1, 16.2, 17.1, 17.2) and the electromotors (13, 14) are arranged on the front side (12) of a base plate (11), wherein the motor shafts (13.1, 14.1) are fed through the base plate (11) and are connected to the axles (16.3, 17.3) of the drive rollers (16.1, 17.1) mounted in the base plate (11) via drive devices (21, 22), wherein there is a clamping device (25) on the rear side (18) of the base plate (11) by means of which the pressure rollers (16.2, 17.2) of the closer roller pair (16) and of the exit roller pair (17) can be pressed against the drive rollers (16.1, 17.1).
摘要:
Device to be applied to a ring spinning machine for the production of patterned yarns wherein the fibres coming from a rove which constitutes the base rove (S) are ' covered by a rove (T) made of fibres of different nature and/or colour; In each position of the spinning machine the two roves (S and T) advance parallel and separate on the same plane detected by the middle cylinder (M) and on output cylinder (F) with related pressure roller (M' and F' ) and by supporting belts dragged by said middle pressure roller (M' ); the middle pressure roller (M') and the related supporting belt (R') are divided into two parts, one part of the roller and the related belt (HB) acting on the base roves (S), while the other part of the roller and the related belt (HC) act on the roves (T) of different nature and/or colour; the two parts of the pressure roller (M') and of the related belts (HB, HC) being on the same axis, but being provided with means which independently rotate them, so that the two roves can have different drawings.
摘要:
In einem Streckwerk zum Verziehen eines Faserverbandes ist eine antreibbare Unterwalze vorgesehen, der eine Druckwalze zugeordnet ist, die mit der Unterwalze eine Klemmlinie (7) bildet. Vor und nach der Klemmlinie ist wenigstens ein mechanisches Mittel (15,16) zum Umlenken des Faserverbandes (2) vorgesehen. Die Mittel zum Umlenken des Faserverbandes sind an der Druckwalze (4) befestigt. Zwischen der Achse der Druckwalze und den Mitteln zum Umlenken kann eine Druckfeder angeordnet sein. Die Mittel zum Umlenken des Faserverbandes sind in einer Verdichtereinheit angeordnet, die zwei konkave zylindermantelförmige Auflageflächen für eine Unterwalze des Streckwerks aufweist.