Invention Grant
US4697309A Dual chute fiber tuft feeding apparatus 失效
双斜槽纤维毛束喂料装置

Dual chute fiber tuft feeding apparatus
Abstract:
An apparatus for feeding a fiber lap to a card, includes an upper reserve chute having an upper end through which fiber material is introduced into the apparatus, a feed roller situated at a lower end of the reserve chute and arranged for withdrawing fiber material therefrom; a feed chute having an upper end situated adjacent to the lower end of the reserve chute; and an opening roller situated in a space between the lower end of the reserve chute and the upper end of the feed chute. The opening roller is arranged under the feed roller to receive fiber material therefrom and to advance the fiber material into the feed chute through the upper end thereof. There are further provided delivery rollers at a lower end of the feed chute for withdrawing fiber material therefrom as a fiber lap; and an air circulating arrangement for introducing a compressing air stream through the upper end of the feed chute, driving the air stream through the feed chute to compress fiber material therein and withdrawing air from openings in a lower portion of the feed chute. The feed roller and the opening roller are rotated simultaneously in opposite directions relative to one another and the compressing air stream is guided adjacent the opening roller codirectionally with the rotary direction thereof.
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