| 摘要 |
A card feed unit is positioned at a carding machine in place of a standard lap stand to refiningly act on a supported picker lap so as to supply a light weight blanket of aligned fibers to the carding machine and thereby greatly increase the production rate of a carding machine. Such unit has a two column, frame supported, stack of horizontally disposed rolls of small diameter with the rolls of one column being in nested relation with the rolls of the companion column. The rolls from the lap receiving top of the blanket delivering bottom of the unit have an increased number of spirally arranged teeth and are driven at increased speeds. Each roll performs in two drafting stages; it drafts from the upper proceeding roll and holds against the lower succeeding roll.
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