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Title:
Press machine
Document Type and Number:
Japanese Patent JP6351664
Kind Code:
B2
Abstract:
An object of the present invention is to provide a press machine capable of performing progressive processing with a simple configuration. The press machine 1 for use in progressive processing includes upper and lower crankshafts 10 and 11 having the same amount of eccentricity and driven in opposite directions with a phase difference of 180 degrees, a slide 12 and a bolster 13 rotatably connected to an eccentric part of the upper crankshaft and an eccentric part of the lower crankshaft, respectively, a parallel maintaining mechanism 14 configured to maintain a parallelism between the slide and the bolster, and a clamp mechanism 15 including an upper clamp attached to the slide and a lower clamp attached to the bolster. The slide and the bolster move toward/away from each other and advance/retreat together along a feed direction of the material in accordance with rotational driving of the upper and lower crankshafts. The clamp mechanism clamps the material to be processed when the slide and the bolster move toward each other and unclamps the material forwardly fed while being clamped when the slide and the bolster move away from each other.

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Inventors:
Takao Ito
Application Number:
JP2016125753A
Publication Date:
July 04, 2018
Filing Date:
June 24, 2016
Export Citation:
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Assignee:
Aida Engineering Co., Ltd.
International Classes:
B30B7/04; B21D43/04; B30B1/26; B30B13/00; B30B15/04
Domestic Patent References:
JP2004330218A
JP5123790A
JP2010075972A
JP2000158198A
Attorney, Agent or Firm:
Shigeo Akiyama
Shinya Nishimura