| 摘要 |
<p>In order to position a container or a container preform made of thermoplastic, which has a neck (1) having an axisymmetric cylindrical inner wall, with a predetermined angular orientation onto a support mandrel (10) internal to the neck (1), the mandrel (10) having a mandrel body (11) and retention means (13) interacting positively with the neck (1) in order to render it integral with the mandrel body, the retention means (13) are mounted so as to rotate loosely on the body (11) of the mandrel so that the neck (1) is rendered axially integral with the mandrel body but free to rotate on it; a fixed stop (14) projects radially from the body of the mandrel, at a place on the latter having a predetermined angular orientation at least partly opposite a given axial portion of the inner wall of a neck (1) retained on the mandrel; a radial projection (9) is arranged, at least in part, at an angularly predetermined place on the axial portion of the inner wall of the neck (1); and relative rotation is caused between the container integral with the retention means and the body (11) of the mandrel until the radial projection of the neck (1) comes up against the fixed radial stop of the body of the mandrel. <IMAGE></p> |
