TAKE-UP DEVICE FOR STRIP

摘要

A take-up device includes a fluid-pressure device, a pressure detection device, a pressure calculation mechanism, and a controller. The fluid-pressure device is a device for expanding and contracting a mandrel. The pressure detection device detects a pressure of a hydraulic fluid in the fluid-pressure device. The pressure calculation mechanism calculates a tightening pressure acting on the mandrel, based on the pressure detected by the pressure detection device. The controller controls the fluid-pressure device. Also, the controller performs position control until the number of turns of a strip reaches a value. The controller performs constant-pressure control after the number of turns of the strip reaches the value.

主权项

1. A take-up device for a strip, comprising:
a mandrel for taking up the strip; a fluid-pressure device for expanding and contracting the mandrel; a pressure detection device that detects a pressure of a hydraulic fluid in the fluid-pressure device; a control device configured to
calculate a tightening pressure acting on the mandrel, based on the pressure detected by the pressure detection device,store a first reference turn count, andcontrol the fluid-pressure device, wherein the control device performs position control for expanding the mandrel according to a number of turns of the strip until the number of turns of the strip reaches the first reference turn count; and wherein the control device performs constant-pressure control for making the calculated tightening pressure constant after the number of turns of the strip reaches the first reference turn count.