Folding mechanism for a bag knitting apparatus

Details Folding mechanism for a bag knitting apparatus Folding mechanism for a bag knitting apparatus

1998-01-13

1999-09-28

Sipos, John

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493295, 493302, 493439, B31B 136

Patent

active

059578238

ABSTRACT:
A folding mechanism for a bag knitting apparatus which is intended to fold inwardly the text-printed sides of the double-layer material strip to overcome the problems of conventional bag knitting apparatus. The folding mechanism comprises a clamping roller set, a folding rod set, a supporting set, and a pressing wheel set. The double-layer material strip to be folded is opened to enclose the lower end of the folding rod set such that the sides are positioned between groove surfaces formed on the outer sides of the folding rod set and the pressing wheel set. The material strip is folded as it passes upward between the groove surfaces of the folding rod set and the pressing wheel set.

REFERENCES:
patent: 2701989 (1955-02-01), Hayward et al.
patent: 4041849 (1977-08-01), Tsukasaki
patent: 4908009 (1990-03-01), Yokoyama
patent: 4986806 (1991-01-01), Braedle et al.
patent: 5024049 (1991-06-01), Strub et al.
patent: 5246416 (1993-09-01), Demura et al.

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