摘要:
A strand feeding assembly is provided with a strand starting cone and cone idler which cooperate to accelerate a strand introduced between the idler and cone to the proper speed for the strand feeding assembly. The cone is either affixed to and rotates with a roller of the strand feeding assembly, or the cone is independently driven to enable the selection of a rate of acceleration for the strand best suited for the process and type of strand being accelerated.
摘要:
APPARATUS FOR ENGAGING OR DISENGAGING DRIVEN PRESSURE ROLLERS WITH ROTATING DRIVING ROLLERS PROVIDED IN A PLURALITY TO THE YARN-FORWARDING UNITS. THE FORMER ROLLERS ARE ENGAGED OR DISENGAGED WITH THE LATTER ROLLERS BY THE MOVEMENT OF A SINGLE COMMON SHAFT IN ALL UNITS AND IN CASE OF AN ACCIDENT ONE OR MORE DRIVEN ROLLERS ARE ENGAGED OR DISENGAGED INDIVIDUALLY WITH THE DRIVEN ROLLERS WITHOUT THE MOVEMENT OF THE SHAFT.
摘要:
A wire feeder including a frame which supports three pairs of rotatably mounted drive rolls in a position to pass wire in a substantially straight line between the pairs of rolls and means connected to each of the rolls of each of said pairs of rolls for driving each of said rolls at the same speed. The drive rolls are grooved with sidewalls contacting at an angle of 100* to 150* and at least one drive roll in each pair of rolls can be provided with biasing means for urging the roll towards its coacting drive roll to impart a driving pressure to the wire between the pair of rolls.
摘要:
In an apparatus for nipping and supplying one or more yarns to a proceeding process by a couple of rollers engaged with each other. One roller is supported freely rotatably by an arm mounted swingably on a shaft and the other roller is always rotated and supported by the other shaft. The former roller is easily kept engaged with the latter roller during the operation to supply said yarns to the proceeding process, while during out of the operation the former is easily kept disengaged with the latter not to supply said yarns to the proceeding process.
摘要:
APPARATUS AND METHOD FOR FORWARDING A NON-CIRCULAR, CONTINUOUS STRAND, TOW OR YARN HAVING A SLIGHT TWIST IMPARTED THERETO BY GUIDING THE YARN TO A FORWARDING ZONE AND NIPPING THE YARN INTERMITTENTLY BETWEEN A TANGENTIALLY ENGAGING, STRIATED ROLL ASSEMBLY WHICH PERMITS THE YARN TO BE FORWARDED WITH THE TWIST INTACT.
摘要:
The device comprises at least one conical roller, and a thread guide cooperating with the roller for orienting a thread at the circumference of the roller. The thread guide is in the form of a control arm which is provided with a thread eye and which is mounted for movement in a path such that the thread eye is displaced substantially parallel to a generatrix of the conical roller. A pivoted rocker arm is coupled to the control arm and is rocked by means of a cam mounted on a rotatable shaft.