Stamping roller for a stamping device

B - Operations – Transporting – 41 – F

Patent

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Details

B41F 19/06 (2006.01) B44B 5/00 (2006.01) B44B 5/02 (2006.01)

Patent

CA 2224815

Described is a stamping roller (10) intended for a stamping apparatus, which roller has a central carrier roller (12) and stamping punch portions (24) which are spaced from each other in the peripheral direction, wherein fixed to the carrier roller is at least one punch ring whose two axially mutually spaced edge portions are designed with spacer rings (26) for the defined contact of at least one associated backing roller (28), and the punch ring (20) is designed with the stamping punch portions (24) between the two spacer rings (26). The/each punch ring (20) is matched to the carrier roller (12) in respect of dimensions and material in such a way that the/each punch ring (20) is displaceable on the carrier roller (12) at ambient temperature and at elevated stamping or operating temperature of the stamping roller (10) thermal expansion fixes the/each punch ring (20) on the carrier roller (12). The or each punch ring (20) has a heat-insulation portion between the two lateral spacer rings (26) and between adjacent punch portions (24). Lateral cover means (34) adjoin the/each punch ring (20).

Le cylindre d'estampage décrit (10) pour un dispositif d'estampage comprend un cylindre porteur central (12) et des poinçons d'estampage (24) mutuellement espacés dans le sens de la circonférence du cylindre d'estampage (10). Au moins un anneau d'estampage dont les deux sections marginales mutuellement espacées dans le sens axial servent à soutenir dans une position définie au moins un cylindre de pression correspondant (28) pourvu de bagues d'espacement (26) est assujetti sur le cylindre porteur (12). Le matériau dont sont constitués les anneaux d'estampage (20) et leurs dimensions sont adaptés au cylindre porteur (12) de sorte que le ou les anneaux d'estampage (20) puissent être ajustés à la température ambiante sur le cylindre porteur (12) et se fixer sur le cylindre porteur (12) par dilatation thermique à la température accrue d'estampage ou d'exploitation du cylindre d'estampage (10). Le ou les anneaux d'estampage (20) sont pourvus d'un élément d'isolation thermique monté entre les deux bagues latérales d'espacement (26) et entre des poinçons d'estampage adjacents (24). Des chapes latérales (34) sont adjacentes aux poinçons (20).

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