Device for correctly positioning yarns prior to knitting in a ci

Textiles: knitting – Feeding – Close-feed devices

Patent

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Details

66140R, D04B 1548, D04B 1560

Patent

active

043733603

ABSTRACT:
To blow a yarn toward the needles and release it from the gripping device upon yarn feeding in a circular knitting machine, in particular a double cylinder one, a device is provided which is synchronized with each yarn feeding finger regardless of the number of feeds. The device comprises a control cam provided with a boss and rotated synchronically with the needle cylinder(s), an actuating cam provided with two oppositely located notches and connected to the control cam through a normally disengaged coupling controlled by the machine program, and an actuating lever which follows the profile of the actuating cam and controls a valve to cause it to engage with the control cam and be operated by the boss thereof to deliver pressurized air to the yarn feeding area. The valve can be moved into the operative position by means of each yarn feeding finger associated with one feed.

REFERENCES:
patent: 966707 (1910-08-01), Rogginger
patent: 2919566 (1960-01-01), Felker
patent: 3077097 (1963-02-01), Butler
patent: 3813900 (1974-06-01), Cook et al.
patent: 4137732 (1979-02-01), Gostelow et al.
patent: 4233826 (1980-11-01), Lonati

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