ES430965A1 - Automatic doff and start-up ring rail locating and control apparatus for textile yarn processing machine - Google Patents

Abstract

Improvements in textile machines for making yarn, such as a spinning or twisting machine, which has a static frame, rotary yarn receiving spindles supported by said frame, a rocker that moves vertically up and down around said spindles to guide the yarn being drawn toward the spindles in predetermined patterns to constitute a finished yarn wrap, and a forming mechanism connected to the said rocker arm to alternately move said rocker arm in predetermined patterns; characterized by including an apparatus for automatically positioning and controlling the rocker for unloading and start-up and for automating the movements of the rocker to allow manual or automatic unloading of finished casings of finished yarn and start-up of processing of new thread wraps, said apparatus comprising fluid-actuated means connected to the forming mechanism so that upon activation they make the aforementioned rocker descend sequentially to a discharge position located under the mentioned spindles and allow, upon deactivation, the rocker is raised by the action of the forming mechanism to a position close to the bottom of the spindles and stops, by activating and deactivating it, lowering and shaking the rocker arm up and down near the bottom of the spindles to eliminate the loose parts and to make up a bundle of yarn at sea cha, and electrical circuit control means connected to said fluid-actuated means and to said rocker arm to be activated by predetermined positions thereof and to control said fluid-actuated means through their operating sequences. (Machine-translation by Google Translate, not legally binding)