Title:
THICKENING PROCESSOR OF DISCOID MATERIAL
Document Type and Number:
Japanese Patent JP2015217407
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a thickening processor of a discoid material that can process thickening by generating neither buckling nor strain in a discoid material when the peripheral edge part of the discoid material is to be thickened.SOLUTION: A thickening processor 1 comprises first-third processing stations 11-13 in parallel to process thickening by feeding a discoid material 5 forward to each processing station. The discoid material 5 is clamped and retained by the holding jig 4 of a holding part 3 provided in each processing station. A molding roller 6 provided in each processing station is pressed radially inward on the peripheral edge part 5a of the discoid material 5 squeezed out of the holding jig 4 to thicken the same. At this time, the holding jig 4 of the first-third processing stations 11-13 keeps the outer diameter smaller sequentially stepwise to make a volume which can be processed by thickening in the discoid material 5 get larger sequentially stepwise, so that thickening can be processed by generating neither buckling nor strain in the discoid material 5.
Inventors:
KUBOTA YOSHIKI
MORITA YASUYUKI
FUJITA NAOTAKE
MORITA YASUYUKI
FUJITA NAOTAKE
Application Number:
JP2014101668A
Publication Date:
December 07, 2015
Filing Date:
May 15, 2014
Export Citation:
Assignee:
KUBOTA IRON WORKS CO LTD
International Classes:
B21H1/02; B21H1/00
Domestic Patent References:
| JP2000516862A | 2000-12-19 | |||
| JP2000516862A | 2000-12-19 |
Foreign References:
| US5396787A | 1995-03-14 | |||
| US5396787A | 1995-03-14 |
Attorney, Agent or Firm:
Maeda patent office