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Patent Searching and Data


Title:
AUTOMATIC DIE EXCHANGING DEVICE, AND DIE EXCHANGING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/226050
Kind Code:
A1
Abstract:
This automatic die exchanging device includes: first and second die exchanging units (13UL, 13UR) which are driven respectively by a pair of servo motors, and which move in the arrangement direction of a plurality of dies mounted on a die mounting unit; a torque detecting unit which detects the torque of the pair of servo motors; and a control device which controls the operation of the first and second die exchanging units (13UL, 13UR). The control device fixes the first die exchanging unit (13UL) at a reference position (Pst), and moves the second die exchanging unit (13UR) toward the first die exchanging unit (13UL). The control device (20) determines, on the basis of the torque change of the servo motor (25), that a plurality of upper dies (P1 to P4) have been gathered together to the first die exchanging unit (13UL) as a result of the movement of the second die exchanging unit (13UR).

Inventors:
WATANABE KATSUMI (JP)
Application Number:
PCT/JP2020/017160
Publication Date:
November 12, 2020
Filing Date:
April 21, 2020
Export Citation:
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Assignee:
AMADA CO LTD (JP)
International Classes:
B21D5/02; B21D37/04
Domestic Patent References:
WO2016109862A12016-07-14
Foreign References:
JPH07100540A1995-04-18
JPH06190449A1994-07-12
JP2019214061A2019-12-19
JP2006346707A2006-12-28
JP4672868B22011-04-20
JP2001150032A2001-06-05
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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