Abstract
To trace the development of a full-automatic auto-doffer simple in mechanism and usuable in conventional spinning mills.
The Doffer
(1)The mechanism used is of an intermittent-movement and multi-spindle doffing system.
(2) The width of the doffer is 189mm.
(3) Conventional ring frames and buildings may be used if there is a space of more than 300mm between the gear-end side (or out-end side) of a ring frame and a pillar.
(4) One person can move the auto-doffer if an auto-doffer carrier is used.
(5) The rails for the auto-doffer carrier need not be laid on the floor.
(6) The doffing time per cycle is about 8sec/10sps.
(7) The end-breakage rate for 10 ring frames as of June 1965 is about 2.5%.
