LOAD APPLYING DEVICE, PRESS-MOLDING DIE, PRESS-MOLDING METHOD

Title:

LOAD APPLYING DEVICE, PRESS-MOLDING DIE, PRESS-MOLDING METHOD

Document Type and Number:

WIPO Patent Application WO/2012/117967

Kind Code:

A1

Abstract:

The present invention provides a load applying device for a press-molding die, the load applying device being provided with: a rod which has a first end part, a second end part, and a flange; a stacked disc spring which is formed by stacking a plurality of disc springs having a center hole into which the first end part of the rod is inserted; a first plate having a first through hole into which the first end part of the rod is inserted and for coming into contact with the stacked disc spring; a second plate having a second through hole into which the second end part of the rod is inserted and for coming into contact with the flange; and a space securing part which is disposed between the first plate and the second plate in a detachable manner and which ensures that a space is formed between the first plate and second plate so that the space needed for the stacked disc spring to impel the flange toward the second plate is maintained. The second end part and the first plate move relative to one another in the direction in which the second end part and the first plate come into close contact with one another during press molding, thereby compressing the stacked disc spring.

Inventors:

YOSHIDA TOHRU (JP)
TOYODA DAISUKE (JP)

Application Number:

PCT/JP2012/054582

Publication Date:

September 07, 2012

Filing Date:

February 24, 2012

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
H ONE CO LTD (JP)
YOSHIDA TOHRU (JP)
TOYODA DAISUKE (JP)

International Classes:

B21D24/12; B21D24/02

Foreign References:

JPH02108519U	1990-08-29
JPS6471530A	1989-03-16
JP2004237347A	2004-08-26
JP2009195956A	2009-09-03
JPH03207531A	1991-09-10
JP2002321013A	2002-11-05
JP2004344925A	2004-12-09

Other References: