Abstract: 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.

Abstract: 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.

Abstract: A star construction having variable pitch arms for a rotary molding machine for making plastic vessels and bottles, comprises a plurality of arms including gripper elements and a system including two levers which engages with the grippers, while cooperating with respective cam contours, the lever and cam system being reciprocatedly driven for providing a pitch variation and controlling the positions of the gripper elements. With respect to prior solutions, the variable pitch arm star construction according to the invention allows to quickly and simply perform the operations necessary for modifying the arm pitch.

Abstract: A star construction having variable pitch arms for a rotary molding machine for making plastic vessels and bottles, comprises a plurality of arms including gripper elements and a system including two levers which engages with the grippers, while cooperating with respective cam contours, the lever and cam system being reciprocatedly driven for providing a pitch variation and controlling the positions of the gripper elements.

Abstract: A thermoshrinking tunnel oven for making thermoshrinking plastic material film packages comprises a bottom plate and a top plate having openings for allowing thermoshrinking hot air to pass therethrough, the cross-sections of the openings being controlled by perforated sliders which are independently slidably mounted on the plates. With respect to conventional tunnel ovens, the inventive tunnel oven and method have the advantage that they provide thermoshrinking material packages of even aspect and devoid of unevennesses.

Abstract: A thermoshrinking tunnel oven for making thermoshrinking plastic material film packages comprises a bottom plate and a top plate having openings for allowing thermoshrinking hot air to pass therethrough, the cross-sections of the openings being controlled by perforated sliders which are independently slidably mounted on the plates.

Abstract: A rotary machine for making PET vessels or bottles starting from a molded preform comprises a rotary table driven by motor-reducer unit and supporting a plurality of molds, transmission and gripping wheels for gripping the preforms from an oven, a driving chain for driving the preforms through the oven and variable pitch star elements for supplying the preforms to the molds and withdrawing from the molds the formed bottles, a central control unit being moreover provided for independently controlling the above mentioned devices.

Abstract: A suspending system for various kinds of hanging supports includes a section bar suitable for removably receiving the hanging supports. The section bar cooperates with a device which keeps the section bar fastened to/hanging from a carrier. The hanging supports can include, for example, tie carrier hooks, container trays, and skirt and/or trousers carrier elements.

Abstract: Chair element which can be personalized and to which can be fitted various types of seatbacks (20) or seat surface (21) which are and can be differentiated as regards their shape, the element comprising a bearing structure (10) with rear legs (12) that include a short extension (16) above a support surface (17) of the seat surface (21), the bearing structure (10) cooperating with a self-supporting seatbeak (20).