Control device for a roll press

Details Control device for a roll press Control device for a roll press

1985-05-08

1987-01-06

Feldman, Peter

Presses

Automatic or material triggered control

100 47, 100162B, 100170, 29116AD, 72 8, 72 20, 72243, B30B 1526, B30B 1516

Patent

active

046337741

ABSTRACT:
A control device in particular in a multi-roll press (22 to 24) of a calender intended for the glazing of a continuous thin web, such as a paper web, which said press comprises a compensated upper roll (22), a compensated lower roll (24), and at least one press roll (23) fitted between the rolls. The control device itself comprises a press-load control circuit (B, C, D, 11, 14, 15; A, 29, 30), a compensation circuit (E, 16, 17) for the upper roll (22), as well as a compensation circuit (F, 27, 28) for the lower roll (24). According to the invention, both of the compensated circuits (E, 16, 17 and F, 27, 28) are, via their own feedbacks (12 and 13), connected to the control circuit (B), which is fitted so as to select the most slowly changing one from among the signals of the feedbacks (12 and 13) and to brake down the roll (22 or 24) whose compensation is being varied most rapidly. By means of the invention, the calender will always be loaded in a constant way, whereby a better paper quality and constant running values are obtained.

REFERENCES:
patent: 4472958 (1984-09-01), Biondetti
patent: 4480537 (1984-11-01), Agronin et al.
patent: 4481799 (1984-11-01), Glattfelder

Affiliated with

Also associated with

Rating

Control device for a roll press does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control device for a roll press, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control device for a roll press will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-676041