Title:
ROLL FORMING MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/103023
Kind Code:
A1
Abstract:
The purpose of the present invention is to simply and rapidly perform replacement operations for horizontal rolls within a horizontal roll stand, including readjustment of reduction amount. To achieve this, a horizontal roll stand 10, which has an upper and lower pair of built-in horizontal rolls 11, can be retracted to one side of the forming line. A fixed stand 40 is arranged on the side of the forming line opposite from the retraction, and a reduction device 43 for imparting reduction force to the horizontal rolls 11 is provided in an overhanging part 42 for the fixed stand 40 jutting out above the forming line. The horizontal roll stand 10 has a horizontal roll housing 12 that is open at the top, and receives reduction force from the reduction device 43 via that open upper part and is retracted to the outside of the forming line leaving the reduction device 43 above the forming line. The overhanging part 42 of the fixed stand 40 is mated with the horizontal roll housing 12 of the horizontal roll stand 10 within the forming line and supports the horizontal roll housing 12.
Inventors:
SATO TAKEYUKI (JP)
NAKANO TOMOYASU (JP)
WANG FEIZHOU (JP)
NAKANO TOMOYASU (JP)
WANG FEIZHOU (JP)
Application Number:
PCT/JP2018/042936
Publication Date:
May 31, 2019
Filing Date:
November 21, 2018
Export Citation:
Assignee:
NAKATA MFG CO LTD (JP)
International Classes:
B21D5/12; B21B31/02; B21B31/08; B21C37/08
Foreign References:
| JP2812781B2 | 1998-10-22 | |||
| JP5631337B2 | 2014-11-26 | |||
| JPH08103817A | 1996-04-23 | |||
| JPS624334Y2 | 1987-01-31 | |||
| JPH0292409A | 1990-04-03 | |||
| JPH08103817A | 1996-04-23 | |||
| JPH07275953A | 1995-10-24 |
Other References:
See also references of EP 3715006A4
Attorney, Agent or Firm:
YANAGIDATE Takahiko (JP)
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