摘要:
A method for the fabrication of a container from a substantially tubular preform provided with an open end communicating with a cavity comprises the steps of positioning the preform within a mold that substantially defines a container such that the open end of the preform protrudes from the mold; providing an injector in sealed fluid communication with the open end of the preform which injects a quantity of liquid into the cavity of the preform, increasing the pressure within the cavity and inducing the preform to deform into the shape of the mold and form a container; and then reducing the pressure within the container to atmospheric pressure while maintaining sealed fluid communication between the injector and the open end. Using the method for fabricating and filling a beverage container.
摘要:
Provided is a blow molding apparatus that can mitigate a difference in flow rates of a liquid supplied from a blow nozzle to a preform and prevent eccentricity and uneven thickness from arising in a blow-molded bottle. The blow molding apparatus is provided with: a blow nozzle (14) that mates with an open tube portion (PFb) of a preform (PF); a seal body (21) that opens and closes the blow nozzle (14); a filling head (13) that extends along an axial direction of the blow nozzle (14) and is provided at one end with a liquid supply channel (13a) connected to the blow nozzle (14) and a liquid introduction channel (13b) connected to the liquid supply channel (13a) from the side; and a pressurized liquid supply unit (31) that is connected to the liquid introduction channel (13b) and supplies a pressurized liquid (L) to this liquid introduction channel (13b); wherein a spiral guide groove (24) is provided around an axial center of the liquid supply channel (13a) in an inner peripheral surface of the liquid supply channel (13a).
摘要:
The method and the device according to the invention are used to sterilize preforms (1) made of a thermoplastic material that are intended for producing blow-molded containers. During the sterilization, a sterilizing agent is introduced into the area of the preform (1). The sterilizing agent is discharged at least partially from at least one nozzle (44) in the direction of the preform (1). An average direction (45) of the escape of the sterilizing agent from the nozzle (44) is provided with an angle of inclination (46) from a longitudinal axis (47) of the preform (1).
摘要:
The invention relates to films and methods of making the same. The inventive films comprise at least three layers, an inner layer and at least two outer layers located at opposite surfaces of the inner layer. In one embodiment, the inner layer is formed from a composition comprising an ethylene-based interpolymer or a propylene-based interpolymer, and at least one outer layer is formed from a composition comprising one or more propylene-based interpolymers. The invention also provides articles formed from the inventive films, and for methods of making the same.
摘要:
The method and the apparatus are used for blow molding and for filling containers. To this end, after a thermal conditioning step, a preform is shaped into a container using blowing pressure inside a blow molding tool. The blow molded containers are positioned at least along part of the transport path thereof by a carrying element, which is held by a rotating transfer wheel. The transfer wheel provides at least part of a coupling between a blow molding module for producing the containers and a filling module for filling the containers. An outfeed wheel of the blow molding module can be arranged in a transport direction of the containers upstream of the transfer wheel, and an infeed wheel of the filling module can be arranged in said transport direction downstream of the transfer wheel, wherein each wheel can be equipped with carrying elements for the containers. The number of carrying elements (42) in the region of the transfer wheel (41) is varied in accordance with a production speed.
摘要:
The invention relates to a method for producing a vessel (2) by blowing in a mould (11) from a preform (3) made of a plastic material, comprising the following steps : placing the preform (3) into the mould; at a predetermined moment, called pre-blowing cue (tP), controlling the opening of an electrovalve (22) for establishing a communication between the inside of the preform (3) and a source (20) of gas at a predetermined pre-blowing pressure; measuring the pressure (P) inside the preform (3); detecting the so-called real moment (tA) of the beginning of the pre-blowing at which the pressure (P) in the preform (3) starts to increase; comparing the moment (tA) with a theoretical pre-blowing beginning moment; if the real moment (tA) of the pre-blowing beginning is later than the theoretical pre-blowing beginning moment, advance the pre-blowing cue (tP); if the real moment (tA) of the pre-blowing beginning is earlier than the theoretical pre-blowing beginning moment, delay the pre-blowing cue (tP).
摘要:
The method and the device are used for blow-molding containers To this end, following thermal conditioning inside a blow-molding tool (4), a preform is shaped into the container under the action of blowing pressure. The necessary blow-molding gas is introduced into an interior space of the preform through a connecting element. The connecting element is pressurized in the direction of a preform longitudinal axis by a contact pressure device in order to seal it relative to the preform. The blow-molding tool (4) is held by a retainer (19, 20) and is at least in some sections pneumatically tensionable relative to the carrier (19, 20). The gas used for the pneumatic tensioning of the blow-molding tool (4) relative to the carrier (19, 20) is guided to the region of the carrier (19, 20) via a base (44) that retains the connecting element (42) and can be positoned together with the connecting element (42).