Calender and an arrangement for fastening rolls of a calender

Details Calender and an arrangement for fastening rolls of a calender Calender and an arrangement for fastening rolls of a calender

2006-04-11

2006-04-11

Banks, Derris H. (Department: 3725)

Presses

Concurrent pressing and conveying

Roll type

C100S16300R, C100S169000, C100S331000, C100S334000

Reexamination Certificate

active

07024990

ABSTRACT:
A calender and an arrangement for mounting calender rolls, the calender comprising at least two calender nips (1, 2) formed by at least two stacked rolls (11–14). The rolls are have bearing housings (3–6) by means of which the rolls (11–14) are stacked into roll pairs forming the calender nips (1, 2), and means (31, 32) connecting the bearing housings (3, 4and4, 5) of the rolls pairs with each other. At least two successive calender nips (1, 2) are arranged so that in the successive nips the mutual distance between the longitudinal axes of the lower rolls (12, 14) is smaller than the corresponding mutual distance between the respective upper rolls (11, 13) of the nips, whereby the disposition of the rolls (11–14) forms a V-shaped angle as seen from the end of the calender machinery and thus forms an operating area between the nips for changing the rolls. The rolls are combined into nips advantageously using heatable pull rods inserted through the bearing housings.

REFERENCES:
patent: 3270664 (1966-09-01), Veneman et al.
patent: 3584570 (1971-06-01), Sass et al.
patent: 4211165 (1980-07-01), Schill
patent: 4375188 (1983-03-01), Leiviskä
patent: 4915026 (1990-04-01), Halme
patent: 5850785 (1998-12-01), Vallius
patent: 2117970 (1995-04-01), None
patent: 44 34 509 (1995-04-01), None
patent: 0 666 367 (1995-08-01), None

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