Progressive die machine and progressive forming method

Patent metadata

Field	Value
Publication number	US-10464117-B2
Application number	US-201615141254-A
Country	US
Kind code	B2
Filing date	Apr 28, 2016
Priority date	May 20, 2015
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A progressive die machine improves forming quality of a low formability material such as an ultra-high strength steel material, or the like, and enhances productivity by adopting rapid heating to a progressive method. The progressive die machine includes: a lower die; an upper die installed to vertically reciprocate with respect to the lower die; a material transfer unit to sequentially transfer a material in a length direction between the upper die and a lower die; a plurality of forming stations installed in the upper die and the lower die; and a rapid heating station installed to be adjacent to at least one of the plurality of forming stations.

First claim

What is claimed is:

1. A progressive die machine for continuously forming a material, while sequentially transferring the material, the progressive die machine comprising:
a lower die;
an upper die installed to vertically reciprocate with respect to the lower die;
a plurality of forming stations installed in the upper die and the lower die;
a heating station installed adjacent to at least one of the plurality of forming stations, and
a pre-forming station installed adjacent to an entrance of the upper die and the lower die,
wherein the heating station is disposed between the pre-forming station and the plurality of forming stations,
wherein the heating station is mounted to at least one of the upper die or the lower die by a heating mold, and configured to heat sequentially transferred material cooperatively according to an operation of the upper die and the lower die,
wherein the heating mold has an accommodation space opened toward the material, and a heat source of the heating station is disposed in the accommodation space,
wherein the heat source is spaced apart from the sequentially transferred material, and
wherein the heating station includes a reflector configured to reflect heat generated by the heat source toward the sequentially transferred material.

2. The progressive die machine according to claim 1 , wherein the heat source is a laser source, and the reflector has a curved surface.

3. The progressive die machine according to claim 2 , wherein an optical member configured to distribute heat from the laser source is disposed between the laser source and the sequentially transferred material.

4. The progressive die machine according to claim 1 , wherein the heat source is an inductive heating coil, and the reflector has a curved surface.

5. The progressive die machine according to claim 4 , wherein a thermally conductive heating body is disposed between the inductive heating coil and the sequentially transferred material, and the thermally conductive heating body is installed to be in contact with the sequentially transferred material or to be spaced apart from the sequentially transferred material.

6. The progressive die machine according to claim 1 , wherein the reflector has a parabolic curved surface.

7. The progressive die machine according to claim 1 , wherein the reflector has an open oval curved surface.

8. The progressive die machine according to claim 1 , wherein the heating station includes a first heater installed on a upper die side and a second heater installed on a lower die side.

9. A progressive die machine for continuously forming a material, while sequentially transferring the material, the progressive die machine comprising:
a first die;
a second die configured to reciprocate with respect to the first die, the first and second dies being arranged opposite each other and aligned;
a plurality of forming stations installed in the second die and the first die;
a heating station installed adjacent to at least one of the plurality of forming stations, and
a pre-forming station installed adjacent to an entrance of the upper die and the lower die,
wherein the heating station is disposed between the pre-forming station and the plurality of forming stations,
wherein the heating station is mounted to at least one of the upper die or the lower die via a heating mold, and configured to heat sequentially transferred material cooperatively according to an operation of the upper die and the lower die,
wherein the heating mold has an accommodation space opened toward the material, and a heat source of the heating station is disposed in the accommodation space,
wherein the heat source is spaced apart from the sequentially transferred material, and
wherein the heating station includes a reflector configured to reflect heat generated by the heat source toward the sequentially transferred material.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Kim Young Tae

Classifications

• B21D24/005 Primary

  Multi-stage presses · CPC title

• B21D37/08

  Dies with different parts for several steps in a process · CPC title

• B21D35/002 Primary

  Processes combined with methods covered by groups B21D1/00 - B21D31/00 · CPC title

• B21D22/022

  by heating the blank or stamping associated with heat treatment (C21D takes precedence) · CPC title

• B21D37/16

  Heating or cooling · CPC title