Abstract:
The unit (1) for processing hollow-body plastic blanks (2) includes a chamber (6) wherein the blanks (2) move along a predetermined path. The chamber (6) is defined, on both sides of the path, by two side walls (3, 4) having inner surfaces (5) that face each other. The chamber (6) includes a main section (9) wherein at least one of the walls (3, 4) is provided with a plurality of electromagnetic radiation sources (10). The side walls (3, 4) define therebetween, on at least one end of the chamber, an opening (8) for the preforms to pass therethrough. The chamber (6) includes at least one optical confinement section (12) that extends between the main section (9) and the opening (8) and wherein the inner surfaces (5) of the side walls (3, 4) are optically reflective and converge toward the opening (8).
Abstract:
A method for producing a marked container (12), includes the following steps: a first step (E1) of heating, beyond a glass transition temperature, at least one shape-changing portion of the thermoplastic material wall (17) of a preform (14); and a second step (E2) of forming the container by injecting a pressurized fluid into the body (16) of the preform (14) such as to change the shape of the heated portion of the wall (17) by stretching it; and a step (E0) for marking the preform (14), during which a mark (39) is provided on the shape-changing portion of the wall (17) such that the mark (39) is stretched at the same time as the wall (17), during step (E2) after forming.
Abstract:
Conveyor for transporting articles such as a chain conveyor that can be changed between a stretched configuration and a compact configuration, the chain being formed from a plurality of articulated links. Each link includes a trolley provided with lateral guide mechanism cooperating with a track defining a predetermined trajectory, a support carrying a nozzle for the releasable attachment of an article, the support mounted rotatably with respect to the trolley between a straight position corresponding to the deployed configuration of the chain, and an oblique position, corresponding to the compact position of the chain and in which the support is inclined with respect to the straight position; and an actuator coupled to the support, capable of driving the support in rotation from its straight position to its oblique position, and reciprocally.
Abstract:
The invention relates to a method for controlling confined preforms which are stopped in a heating station during a production interruption, the heating station comprising a device for conveying preforms comprising individual supports which move in a closed circuit and a heating cavity which is bordered by at least one row of transmitters of monochromatic electromagnetic radiation. The method includes a step of heating, by the transmitters of the heating cavity, the confined preforms referred to as “cold” preforms which have been stopped before being exposed to the electromagnetic radiation emitted by the transmitters.
Abstract:
The invention concerns a method for managing captive preforms immobilized in a heating station during an interruption of production, the preforms following a production stream, the heating station including a device for conveying preforms and a heating cavity bordered by at least one row of emitters of monochromatic electromagnetic radiation. The method consists in ejecting from the production stream the cold captive preforms that have been immobilized before they have been exposed to the electromagnetic radiation emitted by the emitters to a recycling stream and rejecting from the production stream the hot captive preforms that have been at least partly exposed to the electromagnetic radiation emitted by the emitters to a reject stream separate from the recycling stream.
Abstract:
Unit (1) for heating hollow body preforms (2) made of plastic, which includes a cavity (8) through which the preforms (2) file past and includes: an emitter device (12) equipped with at least one radiant source (13) of electromagnetic radiation pointing toward the cavity (8); a structure (7) delimiting the cavity (8) and including a set of components (9, 10, 11) forming the boundaries thereof, each boundary component (9, 10, 11) being provided with an internal face (14, 15, 16, 17), facing towards the cavity (8) and capable of absorbing the electromagnetic radiation emanating from the emitter device (12) or reflecting it towards the cavity (8); a cooling circuit (18) formed in its entirety outside of the cavity (8), which includes a fluid canal (19) through which a heat-transfer fluid passes, each boundary component (9, 10, 11) being in thermal contact with a fluid canal (19).
Abstract:
An electromagnetic processing module includes: a main body having a front face; a light emitting assembly including a plurality of light emitting sources, the light emitting assembly being such mounted onto the main body as to radiate frontwards; a fluidic circuit provided within the main body for thermal regulation of the light emitting assembly; and at least one confinement element made of a material opaque to the emitting light and having a confinement face exposed to the emitted light. The confinement element is mounted onto the main body so as to be in thermal contact therewith, whereby thermal regulation of the confinement face is provided by the fluidic circuit.
Abstract:
A method for decontaminating caps (2) or necks of containers by electron bombardment, the method including: an operation of the passage or positioning of the caps (2) or necks of containers in front of an electron bombardment window (8), the opening of the caps (2) or necks of the containers facing the window (8); and an operation of electron bombardment of the caps (2) or necks of the containers, during the passage or positioning of the caps or necks of the containers in front of the window (8); the bombardment being carried out by way of a pulsed electric field including a series of electrical pulses of determined frequency, duration and intensity.