Method of and apparatus for measuring curl of web, method of and

Details Method of and apparatus for measuring curl of web, method of and Method of and apparatus for measuring curl of web, method of and

1997-01-16

1999-11-02

Grant, William

Boots, shoes, and leggings

36447001, 83365, G06F 1900, G06G 766

Patent

active

059757450

ABSTRACT:
A web cutting apparatus has a decurling unit for correcting curl of a web unwound from a reel while the web is being fed, a slitter for slitting the web, a cutter for cutting the web into successive sheets each having a predetermined length, a curl measuring unit disposed at an exit end of the runner cutter, and a conveyor for conveying the sheets to a stacker station. The curl measuring unit has a cut completion detecting mechanism for detecting when the web is cut by the cutter, a cutter distance measuring mechanism for detecting the position of the cutter, and a web displacement measuring mechanism for detecting a displacement due to a bend of a free distal end of the web.

REFERENCES:
patent: 3799038 (1974-03-01), Bossons et al.
patent: 4548110 (1985-10-01), Reil
patent: 4757732 (1988-07-01), Arima
patent: 4944503 (1990-07-01), Arima
patent: 5687595 (1997-11-01), Noe et al.
Japanese Abstract translated into English, JP 06 050751, dated Feb. 25, 1994.

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