Formation of tyre beads or the like

B - Operations – Transporting – 29 – D

Patent

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Details

B29D 30/48 (2006.01) B21F 37/00 (2006.01)

Patent

CA 2401056

A former (1) on which elongate material, such as tyre bead wire, can be wound, comprising a plurality of grooved segments (20-23), each movable radially between inner and outer positions and which, when in their outer positions, together define the entire periphery of the former and provide at least one groove (30, 31) in which the elongate material can be wound in a plurality of convolutions, the segments (20-23) being movable into their inner positions to facilitate the removal of the wound elongate material from the former, and moving means (5-13) for moving the movable segments between their inner and outer positions. The segments (20-23), when in their inner positions, overlap one another and, when in their outer positions, have little or no gaps therebetween so that the or each circumferential groove is continuous. The invention also relates to a former (1) having a gripping device and to a guide assembly (80) for guiding elongate material.

L'invention concerne un support (1) sur lequel un matériau allongé, tels que des fils d'acier de la tringle, peut être enroulé. Ce support (1) comprend une pluralité de segments rainurés (20-23), chacun de ces segments pouvant être déplacé entre une position interne et une position externe. Lorsqu'ils sont en position externe, ces segments définissent ensemble le pourtour entier du support (1) et forment au moins une rainure (30, 31) dans laquelle le matériau allongé peut être enroulé plusieurs fois. Les segments (20-23) peuvent être déplacés en position interne afin de faciliter le déroulement du matériau allongé enroulé du support. Ce support (1) comprend également un dispositif mobile (5-13) destiné au déplacement des segments mobiles entre la position interne et la position externe. Les segments (20-23), lorsqu'ils sont en position interne, se chevauchent, et lorsqu'ils sont en position externe, forment de petits espaces ou ne forment pas d'espaces entre eux, de façon que la ou les rainures circonférentielles soient continues. L'invention concerne également un support (1) comprenant un dispositif de préhension et un ensemble de guidage (80) destiné à guider le matériau allongé.

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