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AssigneeSIPRA Patententwicklungs- u. Beteiligungsgesellschaft mbH
InventorsHartmut Schindler, Earl Robert Quay, Xuejian Zhu, Aiken Anderson Still, IV
Estimating the term…
A circular knitting machine for the production of knitwear formed of yarns and fibers tied into these yarns is described. The circular knitting machine contains a needle cylinder (1) with knitting needles (2), a sinker ring (15) which is rotatable about an axis of rotation jointly with the needle cylinder (1) and has sinkers (16), a stationary cylinder cam and sinker cam means which is associated with the knitting needles and sinkers, respectively, yarn and fiber feed units, an air guiding unit (45) provided with at least one suction nozzle and/or blowing nozzle, and a control cam (85) for acting upon the inserted fiber tufts. The arrangement is carried out in such a way that initially loops are formed from the yarn and the fiber tufts, wherein the fiber tufts are directed essentially toward the axis of rotation, that the direction of the fiber tufts is then substantially reversed by the air guiding unit (45), and that the reversed fiber tufts (44a) are laid over adjacent sinkers by the control cam so that they can take part at least once in a loop forming process. According to the invention, the air guiding unit (45) has a free space (69) arranged on the front side (55) of the knitting needles (2) and above the sinkers (16), which free space (69), considered in the rotating direction of the needle cylinder (1), extends essentially from a location (49) at which the raising of the knitting needles (2) starts up to the beginning of the control cam (85) and in a direction parallel to the axis of rotation until close to the upper edges (70) of the sinkers (16).
Circular knitting machine for the production of knitwear (53) formed of at least one yarn (25) and fibers (44) tied into this yarn (25), comprising a needle cylinder (1) with knitting needles (2), a sinker ring (15) with sinkers (16) having upper edges (70) and being mounted so as to be rotatable about an axis of rotation jointly with said needle cylinder (1), and a stationary cylinder cam and sinker cam means being associated with said knitting needles (2) and sinkers (16), respectively, and forming at least one knitting system extending in a rotating direction of said needle cylinder (1), said knitting system having at least one cylinder cam part (36) for raising and drawing off said knitting needles (2), yarn and fiber feed means (24, 20) for feeding and inserting said yarn (25) and fiber tufts (44) in raised knitting needles (2), at least one sinker cam part (41) for advancing and retracting said sinkers (16), and an air guiding unit (45) provided with at least one nozzle selected from the group consisting of a suction nozzle and a blowing nozzle, wherein said cylinder cam part and sinker cam part (36, 41), said yarn and fiber feed means (24, 20) and said air guiding unit (45) being operative for forming initially loops from said yarn (25) and said fiber tufts (44), said fiber tufts (44) being directed essentially toward the axis of rotation, said air guiding unit (45) reversing the direction of the fiber tufts (44) substantially and the reversed fiber tufts (44a) are laid over adjacent sinkers (16) so that they can take part at least once in a loop forming process when passing through a knitting system, and wherein said air guiding unit (45) has a free space (69) arranged on a front side (55) of said knitting needles (2) and above said sinkers (16), said free space (69) extending in a rotating direction of said needle cylinder essentially from a location (49) at which raising of said knitting needles (2) starts, along a preselected part of a subsequent raising portion (50), and extending in a direction parallel to said axis of rotation until close to said upper edges (70) of the sinkers (16).
Dependencies are inferred from the claim text.