Title:
DEVICE FOR VARIABLY FORMING ROUND BAR
Document Type and Number:
WIPO Patent Application WO/2017/026602
Kind Code:
A1
Abstract:
The present invention relates to a device for variably forming a round bar, comprising: a main body having a circular plate part, which has a plate hole formed in the center thereof, six plate protrusions radially protruding from the plate part, and a turn gear coupling part formed at the outer circumferential surface of the plate part; a round bar formation part having six slide molds, which are coupled to between the plate protrusions and then mounted to the plate part, and formation rolls which are respectively coupled to the slide molds and rotate; a doughnut-shaped turn gear coupled to between the slide molds and the turn gear coupling part, wherein two main gears are coupled to the outer circumferential surface thereof and six arc-shaped turn gear protrusion parts having a diameter different from the center thereof are provided on the inner circumferential surface thereof; a main body cover coupled to the front part of the main body, wherein two decelerator motor-coupling parts are formed on the front thereof; and decelerator motors coupled to the decelerator motor-coupling parts and having pinion gears rotating by being engaged with the main gears on a driving shaft, and thus through holes between the formation rolls can be efficiently adjusted when forming a round bar of different specifications, and whenever a round bar of a different diameter is formed, it is unnecessary to separate the mold frame and the formation rolls from each other, adjust the through holes, and then couple the same again for adjusting intervals between the through holes, or unnecessary to replace the mold frame having a standard through hole. Therefore, the time and costs required for machining are remarkably reduced and the damage, to parts, occurring during the replacement thereof is prevented, and thus reliability and durability are remarkably ensured.
Inventors:
LEE YOUNG SIK (KR)
Application Number:
PCT/KR2016/000070
Publication Date:
February 16, 2017
Filing Date:
January 05, 2016
Export Citation:
Assignee:
LEE YOUNG SIK (KR)
International Classes:
B21B1/08; B21B1/16; B21D7/08
Foreign References:
| KR20120106199A | 2012-09-26 | |||
| KR101254919B1 | 2013-04-18 | |||
| KR100799264B1 | 2008-01-29 | |||
| KR20080021221A | 2008-03-07 | |||
| JP2009285939A | 2009-12-10 |
Other References:
See also references of EP 3335811A4
Attorney, Agent or Firm:
PATENT LAW FIRM (KR)
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