しわ発生検出装置、ダイクッション装置及び金型保護装置、並びにしわ発生検出方法、ダイクッション力自動設定方法及び金型保護方法

Title:

しわ発生検出装置、ダイクッション装置及び金型保護装置、並びにしわ発生検出方法、ダイクッション力自動設定方法及び金型保護方法

Document Type and Number:

Japanese Patent JP6646637

Kind Code:

B2

Abstract:

In a press machine having a die cushion device which supports a cushion pad and which generates a die cushion force when a slide of the press machine is lowered, the wrinkle generation detection device (550) includes: a slide position detector (114) which detects a height position of the slide; a cushion pad position detector (224) which detects a height position of the cushion pad; and a computing unit (554) which consecutively calculates a deviation between the height position of the slide detected by the slide position detector (1 14) and the height position of the cushion pad detected by the cushion pad position detector (224), during a time period from the start of forming of a material by the slide lowering to the end of the forming, wherein a wrinkle generated in the material is detected based on an increase of the deviation consecutively calculated by the computing unit (554).

Inventors:

Junji Makabe

Application Number:

JP2017174959A

Publication Date:

February 14, 2020

Filing Date:

September 12, 2017

Export Citation:

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