Abstract: Unit (4) for molding preforms (2) that each have a body (15) and a neck (17) extending the body (15), this unit (4) including: a frame (19),—a mold holder (27) secured to the frame (19) and carrying at least one mold body (29) having the impression of the body (15) of the preform (2); mobile equipment (60) including a carriage (61) and a core holder (62) carrying at least one primary core (64A) and one secondary core (64B), the carriage (61) being mounted so as to be movable with respect to the frame (19) between a molding position and a demolding position, this core holder (62) being rotatable with respect to the carriage (61), in the demolding position of the latter, about a rotation axis parallel to the molding axis in order to transpose the cores (64A, 64B).

Abstract: An automated system for changing a mold of a molding unit (24) with which a machine for manufacturing containers is provided, characterized in that the system includes at least one control module (M) having at least a first actuating device (122) combined with the locking device (90) of the molding unit (24) and a second actuating device (126) combined with the opening/closing device (82) of the molding unit (24).

Abstract: An automated system for changing a mold of a molding unit (24) with which a machine for manufacturing containers is provided, characterized in that the system includes at least one control module (M) having at least a first actuating device (122) combined with the locking device (90) of the molding unit (24) and a second actuating device (126) combined with the opening/closing device (82) of the molding unit (24).

Abstract: A mold for fabricating containers made of thermoplastic material by blow-molding or stretch-blow molding a blank, which mold has a seat situated at the opening in the molding cavity for the purpose of receiving the rim of said blank, and cooling means for cooling said rim and, between said cooling means and the impression of the shoulder of the cavity of the mold, said mold has thermal insulation means for breaking a thermal bridge. The cooling circuit for cooling the rim is etched in a lid that is mounted around the opening of the cavity of the mold, and this etched portion rests in leaktight manner on a piece that acts as a thermal insulator.

Abstract: A mold for fabricating containers made of thermoplastic material by blow-molding or stretch-blow molding a blank, which mold has a seat situated at the opening in the molding cavity for the purpose of receiving the rim of said blank, and cooling means for cooling said rim and, between said cooling means and the impression of the shoulder of the cavity of the mold, said mold has thermal insulation means for breaking a thermal bridge. The cooling circuit for cooling the rim is etched in a lid that is mounted around the opening of the cavity of the mold, and this etched portion rests in leaktight manner on a piece that acts as a thermal insulator.