Circular textile machine for simultaneously forming a plurality of tubular knitted articles such as panty-hose (tights) and the like
AssigneeLambda S.r.l.
InventorsFranco Gariboldi, Paolo Conti
Life of this patent
Estimating the term…
Abstract
The articles are formed on individual arcs of needles (13, 15) facing each other on the two bars of the cylinder (11) and of the plate (10), the articles having rows formed partly by the needles of one bar and partly by the needles of the other bar, and having two successive yarn feeds (344, 345); means for guiding and switching (458, 459) the position of the two yarns supply them to the needles at two angles and exchange their positions at each reversal of the entrainment thereof by the selective entraining means comprising pairs of hooks (342, 343; 349, 350) carried by two counter-rotating apparatuses (26; 32).
Claims18
A circular textile machine for simultaneously forming a plurality of tubular knitted articles, including shaped and finished articles, comprising:
- two fixed bars for knitting needles, a plurality of articles being simultaneously formed on individual arcs of needles facing each other on said two bars, each having rows constructed partly by the needles of one bar and partly by the needles of the other bar;
- two apparatuses rotating in continuous motion and in opposite directions, and one apparatus carrying control cams for the needles of one bar and another apparatus carrying control cams for the needles of the other bar;
- and, on each of said apparatuses, means for entraining yarn alternately in the two directions along the respective arc which is forming an article, the exchange of the yarn between the two counter-rotating entraining means taking place at working ends of the respective arc of needles;
- said machine wherein that, in order to obtain two successive yarn feeds for each working arc of needles and always having the same yarn fed first, in order to form rows of the continuous helical type:
- two successive yarn feeds (344, 345);
- means (458, 459, 460, 463) for guiding and switching the position of the two yarns in order to supply them to the needles at two angles and to exchange the yarn positions at each reversal of the entrainment thereof by the entraining means;
- as entraining means, pairs of hooks (342, 343;
- 349, 350) with the hooks of each pair being of said entraining means disposed one behind the other in the direction of the respective direction of advance, and a first hook (342;
- 349) being shaped so as to penetrate into a space between the two threads (344,345) to take only one thereof (344) and a second hook (343;
- 350) being shaped to take the other yarn (345);
- on said two counter-rotating apparatuses (26, 32) supports (352)for said hooks (342, 343;
- 349, 350) to permit the displacement thereof between an engagement position of the yarn and a release position of the thread;
- and, on the fixed structure (1, 1F), control means (354, 354';
- 355, 355', 353A) for bringing about timely displacements of the hooks (342, 343;
- 349, 350) at the end of active travel along a working arc.
The machine as claimed in claim which comprises, for each yarn a pincer mechanism (483) capable of engaging and cutting the yarn (344, 345) to be excluded and presenting the cut yarn to be taken by the hooks (342, 343, 349, 350);
- means (485, 468A, 488) for displacing said pincer mechanisms and means (491) for controlling the engaging and cutting members thereof (484, 492).
Dependencies are inferred from the claim text.