A machine for blowing or stretch-blowing bottles or containers made of a polymer material includes molds movable on a transport system. Each mold includes a front, back, and bottom with a first and second half-molds hinged about a hinge axis and a base. Each of the molds includes a mechanism for synchronized actuation of the half-molds and the base independently from the machine's motor, to cyclically form with shaped portions, a closed cavity for receiving a preheated preform and to allow expansion by blowing or stretch-blowing the preform inside the cavity to obtain a bottle or container. The base is wedge-shaped with a horizontal closing surface facing the bottom of the mold, and an inclined surface. The actuation mechanism includes a wedge-shaped element having a surface inclining towards the front of the mold. The inclined surfaces of the base and of the wedge-shaped element are) being slidingly coupled.

A machine for blowing or stretch-blowing bottles or containers made of a polymer material includes molds movable on a transport system. Each mold includes a front, back, and bottom with a first and second half-molds hinged about a hinge axis and a base. Each of the molds includes a mechanism for synchronized actuation of the half-molds and the base independently from the machine's motor, to cyclically form with shaped portions, a closed cavity for receiving a preheated preform and to allow expansion by blowing or stretch-blowing the preform inside the cavity to obtain a bottle or container. The base is wedge-shaped with a horizontal closing surface facing the bottom of the mold, and an inclined surface. The actuation mechanism includes a wedge-shaped element having a surface inclining towards the front of the mold. The inclined surfaces of the base and of the wedge-shaped element are) being slidingly coupled.

A blowing or stretch-blowing machine for preforms made of polymer material. The blowing or stretch-blowing machine (1) has a plurality of molds (1) movable on a transport system, in which each of the molds (1) comprises a first half-mold (2a) and a second half-mold (2b) hinged around a hinge axis (3) and a bottom plate (4) adapted to cooperate with the half-molds (2a, 2b) for closing the bottom of the mold (1), and a mechanism for vertical/translational movement of the bottom plate, to cyclically form a closed cavity adapted to receive a preheated preform and allow expansion, by blowing or stretch-blowing of the preform inside the cavity, to obtain a bottle or container. Each of the molds (1) comprises a system for synchronized opening/closing of the half-molds (2a, 2b) and of the bottom plate (4) actuated by an actuator thereof (30) independent from motorization of the machine.

A device for transporting a hollow body provided with a neck which includes a vertically oriented internal wall, the device including at least elements for gripping the hollow body by engaging with the internal wall of the neck, which are mounted on the lower free end of a rod and movably connected thereto, the rod being mounted to be vertically movable between a high position and a low position, wherein the gripping elements are mounted to be radially movable between a retracted position in which the gripping elements are vertically inserted from top to bottom into the neck, without contacting the internal wall, and a deployed position in which the gripping elements engage the internal wall of the neck, and the change in position of the gripping elements from the retracted to the deployed position and/or from the deployed to the retracted position is actuated by a magnetic field.

A device for transporting a hollow body provided with a neck which includes a vertically oriented internal wall, the device including at least elements for gripping the hollow body by engaging with the internal wall of the neck, which are mounted on the lower free end of a rod and movably connected thereto, the rod being mounted to be vertically movable between a high position and a low position, wherein the gripping elements are mounted to be radially movable between a retracted position in which the gripping elements are vertically inserted from top to bottom into the neck, without contacting the internal wall, and a deployed position in which the gripping elements engage the internal wall of the neck, and the change in position of the gripping elements from the retracted to the deployed position and/or from the deployed to the retracted position is actuated by a magnetic field.