Die apparatus and die exchanging method in pressing machine

Improved die arrangements are provided whereby both an upper die and a lower die can easily be loaded into and unloaded from their respective die holders in a die exchanging operation. An improved die apparatus in a pressing machine in which an upper die set is securely loaded in an upper die holder...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAZAMA TAKESHI, YAMANAKA SHIGEAKI
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	Improved die arrangements are provided whereby both an upper die and a lower die can easily be loaded into and unloaded from their respective die holders in a die exchanging operation. An improved die apparatus in a pressing machine in which an upper die set is securely loaded in an upper die holder fastened to a slide side for a pressing operation, comprises an arrangement whereby the upper die set is held in the upper die holder so that the upper die set can be extracted downwards from the upper die holder, wherein the upper die holder is provided with stopper means adapted to engage with the upper die set to hold the upper die set in place and adapted to disengage from the upper die set to allow the upper die set to disengage from the upper die holder.