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Stéphane Morin

Loïc Bourvellec

Pierre Heuzebroc

Christophe Doudement

Sébastien Fevre

Thierry Lemble

Pierre-François Langlois

Cédric Bianchini

Bertrand Guise

José Blanchard

Daniel Nguyen

A method of controlling a device for conveying thermoplastic material preforms for use in a heat treatment oven and such a device for conveying preforms including at least one principal wheel and one auxiliary wheel at least one of which is driven in rotation to move at least one transport device to which are connected in movement holding device each configured to cooperate with a preform. In example embodiments, the holding device is adapted to be actuated relative to a preform- or vice versa-between an inactive position and an active holding position. In example embodiments, the at least one principal wheel of the conveyor device includes electric actuators that selectively drive at least in rotation the holding device in such a manner as to index said preform in a reference position.

Device for conveying preforms and method for controlling such a device in order to angularly index the preforms in a reference position

A heating unit for heating preforms made of plastics material and having a flange separating a body and neck. The heating unit comprising a plurality of supports, each bearing a gripping member for gripping the preforms. The supports are movable in the heating unit such that each gripping member moves along a conveying path of the preforms. The heating unit also comprises a plurality of shells secured to the supports, where each shell is connected to one or more supports by an actuating member. The actuating member is mounted on said support to pivot about an axis situated at a distance from the conveying path of the preforms. The heating unit further comprising means for pivoting the actuating member to drive the shell from an open position to a protection position when the support to which said shell is connected is passing from an admission/releasing zone to a holding zone.

Unit for heating plastic preforms, comprising a device for protecting preform necks

The invention proposes a method for positioning protective screening ramps of a station for heating preforms, on the occasion of a change of format, the heating station comprising: &#x2014;members for transporting preforms; &#x2014;at least one pair of parallel longitudinal screening ramps for protecting necks against heat, which ramps are parted in order to leave a slot through which the preforms progress; &#x2014;a motorized device for moving the ramps transversely. The method includes a preliminary calibration step which consists in arranging at least two calibration elements between the two protective screening ramps occupying an initial position, and manually causing the protective screening ramps to move into a calibrated position in which they are each in simultaneous contact with the two calibration elements.

Method for positioning heat-screening ramps in a preform heating station

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Octeville-sur-Mer, France

Stéphane Morin