Stripping device

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 45/00 (2006.01)

Patent

CA 2493763

In the case of a stripping device (3) for use with a cutting tool (1) with a cutting element, in particular a punch (2), for machining a workpiece, in particular a curved metal sheet (6), at least one fastening piece (4, 28, 40) for fastening it to the cutting tool, a spring-elastic element (21) arranged outside the workpiece contact region, a stripping element (15, 34) which comes into contact with the workpiece and surrounds the cutting element (2), and at least one guide element (11, 26, 33) guiding the stripping element (15, 34) being provided, a device for securing against rotation is provided to essentially prevent the stripping element (15) from rotating.

L'invention concerne un dispositif d'arrachage (3), destiné à être utilisé avec un outil de découpe (1), comportant un élément de découpe, en particulier une matrice de perforation (2), servant à usiner une pièce, en particulier un tôle incurvée (6), dans lequel sont mis en oeuvre, au moins un élément de fixation (4, 28, 40) servant à fixer l'outil de découpe, un élément à ressort (21) agencé autour de la zone de contact de la pièce à usiner, un élément d'arrachage (15, 34) entourant l'élément de découpe (2) et venant en contact avec la pièce à usiner, et au moins un élément guide (11, 26, 33) servant à guider l'élément d'arrachage (15, 34). Il comporte, en outre, un dispositif d'interception empêchant essentiellement la rotation de l'élément d'arrachage (15).

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