专利名称：Method and apparatus for forming and
everting a work product
发明人：Elvin C. Price,Preston B. Dasher,Erie G.
Huddleston
申请号：US07/678641申请日：19910401公开号：US05134947A公开日：19920804
摘要：An overlock stitch is formed by sewing machine (11) (FIG. 1) into a work product(34) and the work product is accelerated away from the sewing machine so as to stretchthe thread chain (FIG. 5). The stretched thread chain is cut by cutter (40), and the leadingthread chain (43) recoils back toward the hollow chaining tongue (21) and is drawn intothe chaining tongue by the stream of air (26) created by vacuum canister (52) (FIG. 6). Thenext work product draws the leading thread chain out of the hollow chaining tongue andthe sewing machine captures the leading thread chain in the stitch. Transfer conveyor (15)(FIG. 1) moves the work product (34) into alignment with everter tube assembly (106),grippers (109) and (110) grip and open one end of the work product (FIGS. 9-14), and airdrawn through the everter tube assembly everts the work product. The gripper tubeassembly opens along its lower portion (FIG. 16) and drops the work product.
申请人：ATLANTA ATTACHMENT COMPANY
代理机构：Hopkins & Thomas
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