摘要:
The invention concerns a rotating machines for treating containers. When a workstation Pi enters (&thetas;1) a treatment zone, the treating equipment automatically consists of a stationed part (Eq 1) and a common part (Cj) which is mutually coupled with another workstation which is not located at the same time as the station (Pi) in the working zone (3). The same arrangement is used for a control equipment.
摘要:
The mould carrier unit for manufacturing containers by a stretch blow-moulding operation of preforms (3) arranged in moulds (2), comprises: on the one hand, a stretching rod (10) borne by a slide (13) which is mobile between an inactive position and an active position where its free end reaches the bottom of said mould (2), on the other hand, a nozzle (15) comprising a fixed body (16) extended by a bell (20), which is mobile under the action of appropriate means for passing from an inactive position where its free edge (25) is held substantially at the same level as the free end (11) of the stretching rod (10) to an active position where it is sealingly applied against the inlet surface (4) of the mould (2), to close the circuit of the blowing fluid, and said bell (20) comprises a bar (21) provided with a stop (23), which stop (23) cooperates with a support (24) formed on said slide (13) to permit said bell (20) to pass from its active position to the inactive position with the same law of motion as said stretching rod (10).
摘要:
Method for changing the pitch between discrete entities conveyed in succession between a device for feeding the entities at an initial spacing pitch provided between two entities fed in succession and a device for receiving the entities at a final pitch substantially greater than the initial pitch. The method including transporting the discrete entities by a variable pitch feed screw device configured to receive the entities downstream of the device for feeding the entities, the screw including a groove in which the entities are capable of being housed and displaced, so that the pitch between two entities received by the screw is increased downstream of the screw as far as an intermediate pitch; and transferring and gripping the entities at the intermediate pitch by a wheel for changing the pitch, configured to transfer the entities into the receiving device at the final pitch.
摘要:
A container-treatment method, of the type in which the container (12) is disposed inside a chamber (16) which defines a cavity (18) outside the container (12) and which is connected to a vacuum pumping circuit (50), the interior of the container (12) being connected to the pumping circuit (50). The method includes a preliminary pumping step (E1) which is followed by a treatment step (E2). The preliminary step (E1) includes the following successive phases, namely: an external pumping phase (P1) which produces a drop in the pressure inside the cavity (18) only; and an internal pumping phase (P2) which produces a drop in the pressure inside the container (12) only. A machine used to implement the method is also disclosed.
摘要:
Disclosed is a blowing device (10) for forming containers (24) from thermoplastic material preforms. The device (10) includes a blowing nozzle (12) including a bottom outlet opening (28) for a pressurized blowing fluid to leave along a vertical outlet axis (28) and a single duct (14) for supplying the nozzle (12) with blowing fluid that leads into the nozzle (12), via a top supply opening (31), along an axis that is completely radial relative to the outlet axis (A2) of the nozzle (12). The blowing device is characterized in that the upstream end section of the supply duct (14) leads into the nozzle (12) along a branching axis (B) that forms an obtuse angle (a) with the outlet axis (A1) of the nozzle (12) such that the blowing fluid leaving the supply duct (14) is directed downward.
摘要:
The mould carrier unit for manufacturing containers by a stretch blow-moulding operation of preforms (3) arranged in moulds (2), comprises: on the one hand, a stretching rod (10) borne by a slide (13) which is mobile between an inactive position and an active position where its free end reaches the bottom of said mould (2), on the other hand, a nozzle (15) comprising a fixed body (16) extended by a bell (20), which is mobile under the action of appropriate means for passing from an inactive position where its free edge (25) is held substantially at the same level as the free end (11) of the stretching rod (10) to an active position where it is sealingly applied against the inlet surface (4) of the mould (2), to close the circuit of the blowing fluid, and said bell (20) comprises a bar (21) provided with a stop (23), which stop (23) cooperates with a support (24) formed on said slide (13) to permit said bell (20) to pass from its active position to the inactive position with the same law of motion as said stretching rod (10).
摘要:
Method for changing the pitch between discrete entities conveyed in succession between a device for feeding said entities at an initial spacing pitch provided between two entities fed in succession and a device for receiving said entities at a final pitch substantially greater than the initial pitch, characterized in that it comprises the step of transporting the discrete entities by a variable pitch feed screw device capable of receiving said entities downstream of said device for feeding said entities, said screw comprising a groove in which said entities are capable of being housed and displaced, so that the pitch between two entities received by said screw is increased downstream of said screw as far as an intermediate pitch; and the step of transferring and gripping the entities at an intermediate pitch by a wheel for changing the pitch, capable of transferring said entities into said receiving device at said final pitch.
摘要:
The invention concerns an oven (1) for heating moving thermoplastic blanks (preforms, intermediate containers), comprising conveying means (2) supporting and moving the blanks sequentially while rotating each of them about its own axis and heating means (3) arranged laterally to said conveying means (2) for heating the moving blank bodies; the conveying means (2) include at least two parallel conveying branches (4, 5), proximate each other and having opposite conveying directions, said two branches being travelled along one after the other by the blanks; the heating means (3) are arranged between said two conveying branches (4, 5) so as to heat simultaneously on both sides the blanks moving in opposite directions respectively on said two branches.