Hitachi, Ltd.

Hiromitsu Mitsui

Toshiyuki Kajiwara

Kazuo Kobayashi

Yoshio Takakura

Kenichi Yasuda

Takao Sakanaka

Teruo Yamaguchi

Yoshihisa Furuzono

Tetsuya Higuchi

Isamu Ishiyama

Ryo Abo

Shunichi Hamada

A rolling mill for rolling metal strip moving in a horizontal rolling direction, has work rolls which engage the strip and are supported vertically by backup rolls through which drive is applied. The work rolls are supported in the horizontal rolling direction by support rollers contacting them at locations confined to intermediate regions between the work regions and bearings. The work rolls are shiftable in the horizontal rolling direction. To provide control of the horizontal forces during rolling, there are position control means for the support rollers operable to move and locate the support rollers so as to shift the work rolls to a predetermined location at which the vertical axial plane of the work rolls is offset in the horizontal rolling direction from the vertical axial plane of the backup rolls. The support rollers maintain the work rolls at the predetermined location during rolling.

Rolling mill with offset work rolls positioned and controlled by support

An apparatus for looping belt-like materials, including first and second looping units for winding a moving belt-like material helically into first and second coils, with a portion of the belt-like material forming the first coil being drawn out into the second coil. A plurality of support rollers annularly arranged along each of the portions of the wound belt-like material forming the first and second coils, and frames are provided with the support rollers, along with a drive for applying a rotary force to the frames. The support rollers are displaceable in a radial direction of an imaginary circle along which the support rollers are arranged in accordance with variations in diameters of the coils so as to bring the support rollers into contact with the portions of the belt-like material which constitute the coils. The support rollers are annularly arranged along inner circumferential surfaces of the coils, with the drawing of the portion of the first coil being effected by a plurality of small-diameter rollers, arranged along a curved surface of an imaginary cone or cylinder in such a manner that the small-diameter rollers can be rotated in the direction in which the belt-like material is drawn out.

Apparatus for looping belt-like materials

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Hitachi, Japan

Hiromitsu Mitsui