Title:
ROLLER STRAIGHTENING MACHINE FOR BAR STOCK
Document Type and Number:
Japanese Patent JP3274803
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To repeatedly bend a bar stock even in a horizontal plane with a simple structure, to cope with various dimensional change of the bar stock, and to provide excellent correction accuracy and quality.
SOLUTION: Correction rollers 2, 3 are fitted to a roller shaft 23 through sleeves 21, 22. The correction roller 2 is held at the position in the axial direction of the roller relative to a bearing box 4, while the correction roller 3 is advanced/retracted to/from the bearing box 4 in the axial direction by the effect of a motor, a worm wheel 38, and a screw 37. The clearance between the correction rollers 2, 3 is adjusted. The bearing boxes 4, 5 are fixed to a slider, and a roller assembly is moved in the axial direction of the roller as the slider is moved by a motor and a worm reduction gear.
Inventors:
Tomoaki Kimura
Teruo Sekiya
Yukio Fujii
Minoru Komatsubara
Shogo Tomita
Makoto Watanabe
Teruo Sekiya
Yukio Fujii
Minoru Komatsubara
Shogo Tomita
Makoto Watanabe
Application Number:
JP5728996A
Publication Date:
April 15, 2002
Filing Date:
March 14, 1996
Export Citation:
Assignee:
株式会社日立製作所
日本鋼管株式会社
日本鋼管株式会社
International Classes:
B21D3/05; (IPC1-7): B21D3/05
Domestic Patent References:
| JP8141641A | ||||
| JP1317622A | ||||
| JP5340674A | ||||
| JP287510U |
Attorney, Agent or Firm:
Kasuga
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