摘要:
Eine Vorrichtung zum Umformen von Kunststoffvorformlingen zu Kunststoffbehältnissen mit einer Blasform (2), die innerhalb eines Formträgers (10) angeordnet ist, wobei die Blasform (2) wenigstens eine Seitenwand (4) und einen Boden (6) aufweist, gegen welche die Kunststoffvorfiormlinge expandierbar sind, und wobei wenigstens ein erster Fluidkreislauf (12) vorgesehen ist, um die Seitenwand (4) zu temperieren, und wenigstens ein weiterer Fluidkreislauf (16), um den Boden (6) zu temperieren und wobei in wenigstens einem Fluidkreislauf (12) wenigstens eine Heizeinrichtung (20) vorgesehen ist, um das in diesem Fluidkreislauf (12) fließende Fluid zu erwärmen. Erfindungsgemäß ist wenigstens ein erster Wärmetauscher (32) vorgesehen, welcher wenigstens zeitweise Wärme von dem ersten Fluidkreislauf (12) auf wenigstens einen weiteren Fluidkreislauf (14, 16) überträgt.
摘要:
The invention relates to a device for moulding plastic blanks to give plastic containers with a blow mould (2), comprising a cavity (4) within which a plastic blank may be moulded to give a plastic container, wherein the blow mould (2) has a base part (6) to form a base section (10c) of the container (10), said base part defining the cavity (4), a filling device for introducing a gaseous medium into the plastic blank via the mouth thereof, in order to expand the plastic blank within the blow mould (2), with a rod-like body (15), which may be moved relative to the blow mould (2) in order to draw the plastic blank (10) during the moulding process, wherein the base part (6) has a forming section (12) defining the cavity (4), for forming the base section (10c) of the container which matches the shape of the base section (10c) of the container (10) and the forming section (18) has a projection (14) running in the direction of the cavity (4) in a central region (Z).
摘要:
Eine Vorrichtung zum Umformen von Kunststoffvorformlingen zu Kunststoffbehältnissen mit einer Blasform (2), die innerhalb eines Formträgers (10) angeordnet ist, wobei die Blasform (2) wenigstens eine Seitenwand (4) und einen Boden (6) aufweist, gegen welche die Kunststoffvorfiormlinge expandierbar sind, und wobei wenigstens ein erster Fluidkreislauf (12) vorgesehen ist, um die Seitenwand (4) zu temperieren, und wenigstens ein weiterer Fluidkreislauf (16), um den Boden (6) zu temperieren und wobei in wenigstens einem Fluidkreislauf (12) wenigstens eine Heizeinrichtung (20) vorgesehen ist, um das in diesem Fluidkreislauf (12) fließende Fluid zu erwärmen. Erfindungsgemäß ist wenigstens ein erster Wärmetauscher (32) vorgesehen, welcher wenigstens zeitweise Wärme von dem ersten Fluidkreislauf (12) auf wenigstens einen weiteren Fluidkreislauf (14, 16) überträgt.
摘要:
Dispositif comprenant : - un fond de moule ( 1 ) présentant, sur une face supérieure, une empreinte ( 2 ) en creux correspondant à un fond de récipient, - une couronne ( 8 ) cylindrique munie, à une extrémité opposée au fond de moule ( 1 ), d'un bourrelet ( 9 ) annulaire en saillie radiale définissant une portée ( 10 ) tronconique, et - un logement ( 13 ) central pour le montage d'une partie ( 14 ) d'un raccord ( 15 ) fluidique.
摘要:
A method for producing a heat set plastic container (40) including: providing a mold cavity (20) having sidewall surfaces (17) and base surfaces (19); providing a plastic preform (22) within the mold cavity (20); expanding and stretching the preform (22) into conformity with the sidewall surfaces (17) and the base surfaces (19) to form a plastic container (40) having a sidewall and a base; and inducing crystallinity in the base (41) of the plastic container (40) by applying heat from the base surfaces (19) of the mold cavity to the base (41) of the plastic container (40) and by applying heat from an interior portion of the plastic container (40) to an interior surface of the base of the plastic container.
摘要:
The heat resistant and biaxially stretched blow-molded plastic container is issued from a double-blow process. Said container comprises a base (101) movable to accommodate vacuum forces generated within the container, thereby decreasing the volume of the container. Said base comprises a push-up portion (1011 b), and first and second parting lines (PL1; PL2) that are separated from one another by a gap, and that are extending on opposite sides of the push-up portion (1011 b), and wherein: (i) the distance (H1; H2) between each parting line (PL1; PL2) and the center (C) of the base is not more than 20 mm, and/or (ii) the distance (G) between the two parting lines (PL1; PL2) is not more than 40mm, and/or (iii) the distance (G) between the two parting lines (PL1; PL2) is less than 50% of the transverse dimension (DB) of the base (101) measured between the two outermost points (P1, P2) of the parting lines (PL1; PL2).
摘要:
A primary blow mold (M1) for biaxially stretch blow molding a primary container (C1) in a double-blow molding process, comprises a mold cavity (MC1), having a cylindrical upper molding portion (21) and a bottom molding portion (20). Said bottom molding portion (20) comprises a sidewall (200), that is an extension of the cylindrical upper molding portion (21), that forms a molding surface centered on a central axis (A'), and that is not cylindrical, a concave transition wall (201) where the transverse cross section of the mold cavity (MC1) is the largest, and a bottom wall (202) transverse to the central axis (A'). The transverse cross section of the non-cylindrical sidewall (200) is the largest at the transition with the concave transition wall (201). The bottom molding portion (20) defines an offset distance (d offset ) of at least 2mm, said offset distance (d offset ) being measured, in a plan perpendicular to the central axis (A'), between, on the one hand, the upper end (200a) of the non-cylindrical sidewall (200) at the transition with the upper cylindrical molding portion (21) and, on the other hand, an outermost point of the concave transition wall (201) where the transverse cross section (d max ) of the bottom molding portion (20) is the largest. The slope angle (α) of the non-cylindrical sidewall (200)is not less than 3°, and preferably not less than 5°, said slope angle (α) being measured, in a longitudinal cross section plan parallel to the central axis (A'), between the central axis (A') and a straight line (L) including the upper end (200a) and the lower end (200b) of the non-cylindrical sidewall (200).