DIE CUSHION DEVICE OF PRESSING MACHINE

Title:

DIE CUSHION DEVICE OF PRESSING MACHINE

Document Type and Number:

WIPO Patent Application WO/2006/054512

Kind Code:

A1

Abstract:

A die cushion device of a pressing machine, wherein a controller controls the opening of a proportional flow control valve to a proper opening to control a flow flowing out from the lower chamber of a hydraulic cylinder supporting a cushion pad before a slide collides with the cushion pad by using a die cushion pressure instruction instructed from an instruction device beforehand and a slide speed signal inputted from a slide speed detector. Thus, the occurrence of a surge pressure produced when the slide collides with the cushion pad at a high speed can be suppressed.

Inventors:

Kohno, Yasuyuki c/o AIDA ENGINEERING (LTD. 2-10 Ohyama-ch, Sagamihara-shi Kanagawa 06, 22911, JP)
Haseba, Katsunori c/o AIDA ENGINEERING (LTD. 2-10 Ohyama-ch, Sagamihara-shi Kanagawa 06, 22911, JP)

Application Number:

PCT/JP2005/020829

Publication Date:

May 26, 2006

Filing Date:

November 14, 2005

Export Citation:

Click for automatic bibliography generation Help

Assignee:

AIDA ENGINEERING, LTD. (2-10, Ohyama-cho Sagamihara-shi Kanagawa, 06, 22911, JP)
Kohno, Yasuyuki c/o AIDA ENGINEERING (LTD. 2-10 Ohyama-ch, Sagamihara-shi Kanagawa 06, 22911, JP)
Haseba, Katsunori c/o AIDA ENGINEERING (LTD. 2-10 Ohyama-ch, Sagamihara-shi Kanagawa 06, 22911, JP)

International Classes:

B21D24/02; B30B15/02

Attorney, Agent or Firm:

Matsuura, Kenzo (Matsuura & Associates, P.O. Box 176,, Shinjuku Sumitomo Bldg. 39F,, 6-1, Nishi-shinjuku 2-chome, Shinjuku-ku Tokyo, 163-0239, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: VENTILATION CONTROL DEVICE

Next Patent: PREVENTIVE OR THERAPEUTIC PHARMACEUTICAL COMPOSITION FOR NEUROPATHIC PAIN