Multi-roll calender

Details Multi-roll calender Multi-roll calender

1977-10-13

1980-07-29

Silbaugh, Jan J.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Control means responsive to product weight or dimension

425145, 425149, 425335, 425366, 425367, B29D 714

Patent

active

042148570

ABSTRACT:
The multi-roll calender for producing a sheet of elastomeric material comprises a calender frame and a series of rolls mounted in the calender frame. The rolls including an intake roll and a series of vertically superimposed rolls, with all adjacent rolls being variably spaced so as to provide variable roll gaps between each adjacent pair of rolls. Means are associated with the rolls for sensing the pressure of the material being calendered in each roll gap and means are provided on opposite ends of certain of the rolls responsive to the sensing means for adjusting the width of each roll gap formed by adjacent rolls to cause the difference between the pressures in said gaps to be as small as is practicable. Means are provided for maintaining the adjusted pressures substantially constant.

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