Pressure roll for a single facer

Details Pressure roll for a single facer Pressure roll for a single facer

1996-03-26

1997-10-28

Yoder, Michele K.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

156471, 156473, 156205, 156210, 156358, B31F 128

Patent

active

056814224

ABSTRACT:
A single facer apparatus for the production of single face corrugated web includes a pressure roll having a flexible outer surface which is internally biased outwardly to provide the pressure nip for joining the liner and glued corrugated media. A pressure shoe inside the flexible roll is sized and shaped to maintain operative pressure nip contact with at least two corrugating roll flutes. This substantially reduces vibration and noise. The pressure roll is constructed with a substantially enlarged diameter with respect to the corrugating rolls, the single face web joined with a preliminary bond at the pressure nip is wrapped around a substantial portion of the pressure roll circumference downstream of the nip, and the roll is internally heated to cause gelatinization of the glue and to fix the adhesive bond.

REFERENCES:
patent: 3919029 (1975-11-01), Osgood
patent: 3990935 (1976-11-01), Lehmann
patent: 4086116 (1978-04-01), Yazaki et al.
patent: 4316761 (1982-02-01), Hirakawa et al.
patent: 4337884 (1982-07-01), Hirakawa et al.
patent: 4481066 (1984-11-01), Hirakawa et al.
patent: 5449431 (1995-09-01), Isowa

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