Calender for the treatment of web-like materials
AssigneeFutura S.P.A.
InventorsGiovacchino Giurlani, Gionata Mazzoni
Life of this patent
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Abstract
Calender for the treatment of web-like materials, including a fixed structure supporting two heated rollers reciprocally arranged so as to form a nip traversable by web-like materials, where each roller has pins mounted on bearings. The structure includes two lower levers and two upper levers adapted for exerting on the bearings forces oriented according to not coinciding directions, each lever being connected with an actuator that controls its rotation around a horizontal axis to put it in a first engagement position of the respective bearing and in a second release position, such that in the second position of the levers the extraction of the rollers from the calender is allowed.
Claims18
A calender for the treatment of web-like materials, comprising:
- a fixed structure supporting two heated rollers reciprocally arranged so as to form a nip traversable by web-like materials, wherein each of the rollers has a right pin and a left pin and on each of the right pin and the left pin are mounted two bearings spaced apart from each other by a predetermined value, and wherein said structure comprises two lower levers and two upper levers, each of the lower and upper levers movable so as to come into contact with a respective bearing of the bearings, such that each of the lower and upper levers exerts on the respective bearing a force that is oriented in a direction not coinciding with directions of forces exerted on others of the bearings, each of the lower and upper levers being connected with a respective actuator that controls a rotation of a respective one of the levers around a respective horizontal axis of the respective lever to put the respective lever in a first engagement position of the respective bearing of the bearings and in a second release position, such that in the second position of each of the lower and upper levers the extraction of each of the rollers from the calender is allowed.
Dependencies are inferred from the claim text.