| 摘要 |
An equipment which does not use a gap sensor that generates an error caused by vibration generated from a ultra-thin rolling material, and which prevents damage or breakage of a ultra-thin material generated when an actuator intermittently applies an external force onto a ultra-thin rolling material by the feedback action of the gap sensor is provided. A rolling equipment with a dancer roll(10) for preventing creases from being generated on a ultra-thin rolling material(1) is characterized in that: when transferring the ultra-thin rolling material over a guide roll(4) through rolling rolls(2) while winding the ultra-thin rolling material from an unwinder(5) using a rewinder, the dancer roll is disposed between the guide roll and the rolling rolls; the dancer roll is coated with a vibration absorbing material capable of absorbing vibration generated from the ultra-thin rolling material; the dancer roll is rotatably connected to elastic guide bars(12) connected to a supporting member(14); and the dancer roll has a crown-shaped longitudinal axial section, and an outer peripheral surface of the dancer roll is formed in a crown amount represented by expression of Crmax=[Droll/Lroll]ÎTthin(mum)Î10^3, wherein Crmax: the maximum crown amount(mm), Droll: roll diameter, Lroll: roll length, and Tthin: thickness of thin film material(mum).
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