Оптимізація процесу взаємодії нитки з напрямними з урахуванням анізотропії фрикційних властивостей

Abstract

В роботі наведені результати по визначенню натягу нитки, яка взаємодіє з напрямною поверхнею з урахуванням анізотропії сили тертя як самої нитки так і напрямної поверхні. При проведенні досліджень використовувалися циліндричні напрямні поверхні великої та малої кривини, плоскі напрямні. Отримані результати використовувалися для удосконалення технологічних процесів текстильної промисловості.

Longitudinal and cross-section sliding of threads on directing with constant curvature of a surface or on a plane takes place at formation of an element of a fabric and jersey, at interaction of threads with directing bodies of sewing and textile cars. Definition of a tension and the axis form, taking into account anisotropy of frictional properties as threads and directing, allows to select their optimum parametres at the initial stage of designing of technological processes. Thus, the theme of given article is actual which has great value for improvement of technological processes of the textile and knitted industry. Objects and research methods. Improvement of technological processes of the easy and textile industry as objects of research, should be based on complex researches of process of interaction of threads with directing surfaces of the big and small curvature, planes taking into account anisotropy of frictional properties as threads and directing. The received results will allow to optimise process of interaction of threads with directing taking into account anisotropy of frictional properties as threads and directing in a zone of formation of a fabric and jersey, to reduce percent of breakages of threads, to improve quality of finished goods. Problem statement. To optimise process of interaction of a thread with directing surfaces of the big and small curvature, planes taking into account anisotropy of frictional properties as threads and directing. The basic dependences for optimisation of process of interaction of a thread with directing from the point of view of minimisation of size of energies of a friction are defined. It has allowed to define the form of its axis and its tension in any point, to improve process of its processing on the process equipment of the textile and knitted industry. The greatest tension will be had by threads with the greatest value of effective factor of a friction. The real tension, on the average, at anisotropic threads in comparison with isotropic will be more on 20-30 %.