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.
Claims19
1-18. (canceled)
A calender for the treatment of web-like materials, comprising:
- a fixed structure adapted to support two heated rollers reciprocally arranged so as to form a nip traversable by web-like materials, wherein each roller has a right pin and a left pin and on each of said pins are mounted two bearings spaced apart from each other by a predetermined value, wherein said structure comprises two lower levers and two upper levers placed at a predetermined distance from each other and adapted to come into contact each with a bearing for exerting on the same bearings forces oriented according to not coinciding directions, each lever being connected with an actuator that controls its rotation around a respective 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.
Dependencies are inferred from the claim text.