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QUIET SOUND STRUCTURE OF WORKING MACHINE, QUIET SOUND STRUCTURE OF PRESS MACHINE, QUIET SOUND STRUCTURE OF DRAWING DIE AND ITS QUIET SOUND APPROACH UNIT
QUIET SOUND STRUCTURE OF WORKING MACHINE, QUIET SOUND STRUCTURE OF PRESS MACHINE, QUIET SOUND STRUCTURE OF DRAWING DIE AND ITS QUIET SOUND APPROACH UNIT
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机译：作业机的静音结构，冲压机的静音结构，拉拔模的静音结构及其静音方法
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摘要
PROBLEM TO BE SOLVED: To reduce noise as much as possible when a die is collided on a sheet on a blank holder by turnably arranging an approach lever to a stationary member, erecting an actuation cam to a movable member facing the approach lever, operating the actuation cam to the approach lever before a mounted working tool holds a work and approaching a pad. ;SOLUTION: A sheet 24 is placed on a punch 2 and a blank holder 4. By descending an upper die 5, an approach lever 11 is started to be abutted on a flange 15 of the blank holder 4 by an actuation cam 20. The blank holder 4 is approached by the approach lever 11, a die 6 is abutted on the sheet 24. The die 6 is abutted on not the standstill blank holder 4 but on the sheet 24 of the approaching blank holder 4. Because the die 6 is abutted on the approaching sheet 24, a noise is hardly generated.;COPYRIGHT: (C)2000,JPO
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