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

D - Textiles, Paper

21

G

D21G 1/00 (2006.01) D21G 1/02 (2006.01)

Patent

CA 2387114

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 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, 4 and 4, 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.

Calandre et dispositif destiné à monter les rouleaux d'une calandre, ladite calandre comportant au moins deux lignes de contact (1, 2) formées par au moins deux rouleaux empilés (11-14). Lesdits rouleaux possèdent des boîtiers (3-6) de palier à l'aide desquels les rouleaux (11-14) sont empilés par paire pour former les lignes de contact (1, 2), ainsi que des moyens (31, 32) connectant les boîtiers (3, 4 et 4, 5) de palier des paires de rouleaux les uns aux autres. Au moins deux lignes de contact (1, 2) successives sont disposées de manière telle que la distance entre les axes longitudinaux des rouleaux inférieurs (12, 14) est inférieure à la distance correspondante entre les rouleaux supérieurs respectifs (11, 13) des lignes de contact. La disposition des rouleaux (11-14) forme un angle en V si on l'observe depuis l'extrémité de la calandre et forme donc une zone fonctionnelle entre les lignes de contact permettant le changement des rouleaux. Les rouleaux sont combinés pour former des lignes de contact à l'aide de tiges de traction pouvant être chauffées, introduites par les boîtiers des paliers.

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