CALENDER FOR THE TREATMENT OF WEB-LIKE MATERIALS

摘要

Calender for the treatment of web-like materials (W), comprising a fixed structure (10, 11H, 11K, 300) supporting two heated rollers (R1, R2) reciprocally arranged so as to form a nip (N) traversable by web-like materials (W), wherein each roller (R1, R2) has pins mounted on bearings (105, 106). Said structure comprises two lower levers (303, 304) and two upper levers (316, 310) adapted for exerting on the bearings (105, 106) forces (F1, F2, F3, F4) oriented according to not coinciding directions, each lever (303, 304, 310, 316) being connected with an actuator (301 307, 313, 317) that controls its rotation around a horizontal axis to put it in a first engagement position of the respective bearing (105, 106) and in a second release position, such that in the second position of the levers (303, 304, 313, 316) the extraction of the rollers (R1, R2) from the calender is allowed.