Calibration device

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 47/90 (2006.01)

Patent

CA 2520838

The invention relates to a calibration device for calibrating extruded continuous profile, in particular tubes. The inventive device comprises a plurality of successively arranged segmented crowns consisting of individual segments (18, 18', 18'') whose internal surfaces jointly form a calibration opening. Said successively axially arranged segments (18, 18', 18'') are assembled in the form of a segmented block (16). The individual segments (18, 18', 18'') of each segmented block (16) are arranged on a support structure (30, 30'), and the segmented blocks (16) are arranged, in an essentially circular form, in a body (12, 14) in such a way that the axially adjacent segments (18, 18', 18'') are partially superposed upon each other at each position thereof in a circumferential direction. Each support structure (30, 30') is connected to at least one fixing and actuating (20,20') device. The individual segmented blocks (16) which are associated to the support structures (30, 30') thereof are fixed to the body (12, 14) with the aid of said fixing and actuating (20, 20') device, the adjustment of each segmented block (16) being carried out in an axial direction. In order to facilitate the integration and assembly, each fixing and actuating device (20, 20') is divided into two parts, i.e. the first part (42, 60) connected to the support structure (30, 30') and the second part (40, 62) arranged in the body (12, 14), said two parts are mutually assembled in a separable manner.

L'invention concerne un dispositif de calibrage utilisé pour le calibrage de profilés continus extrudés, en particulier de tubes. Ce dispositif comprend une pluralité de couronnes segmentées placées l'une derrière l'autre, constituées de segments (18, 18', 18") individuels, dont les surfaces intérieures forment ensemble une ouverture de calibrage. Des segments (18, 18', 18") placés l'un derrière l'autre dans le sens axial sont assemblés en un bloc segmenté (16). Les segments (18, 18', 18") individuels de chaque bloc segmenté (16) sont disposés sur une structure de support (30, 30'), et les blocs segmentés (16) sont, selon une forme sensiblement circulaire, logés dans un corps (12, 14) de telle sorte que des segments (18, 18', 18") axialement voisins se chevauchent partiellement dans chaque position, dans le sens circonférentiel. Chaque structure de support (30, 30') est reliée à au moins un dispositif de fixation et d'actionnement (20, 20'), avec lequel les blocs segmentés (6) individuels associés à leur structure de support (30, 30') propre sont fixés dans le corps (12, 14), un réglage de chacun de ces blocs segmentés (16) individuels pouvant être effectué dans le sens axial. Pour une intégration et un montage plus faciles, il est proposé que chaque dispositif de fixation et d'actionnement (20, 20') soit divisé en deux, à savoir en une première partie (42, 60), qui est reliée à la structure de support (30, 30'), et en une seconde partie (40, 62), qui est logée dans le corps (12, 14), ces deux parties étant elles-mêmes assemblées mutuellement de façon séparable.

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