摘要:
An injection stretch blow-molding apparatus comprises an injection molding station (12) for simultaneously injection-molding preforms (28) each having a neck (110), a barrel (108), and a handle (80) which is formed adjacent to the boundary between said neck (110) and said barrel (108), and a blow molding station (14) for stretch-blow-molding the preforms (28) into containers (38). Said injection molding station (12) includes two injection core molds (58), a rotary member which rotates around a rotating shaft (52), an injection molding section (22) including one injection cavity mold (64), and an ejecting section (24). Said injection cavity mold (64) includes barrel cavities (70) for molding said barrels (108) of the preforms (28), and handle cavities (72) communicated with said barrel cavities (108) for molding said handles (80), when said handle cavities (108) are located at the outside of said barrel cavities (70) in the radial direction of said rotary member. The width of an outside part of said injection cavity mold (64) measured from the centerline of an array of said barrel cavities (108) in the radial direction of said rotary member is larger than the width of an inside part of said injection cavity mold (64) measured from the centerline.
摘要:
An injection stretch blow-molding apparatus comprises an injection molding station for simultaneously injection-molding preforms each having a neck, a barrel, and a handle which is formed adjacent to the boundary between said neck and said barrel, and a blow molding station for stretch-blow-molding the preforms into containers. Said injection molding station includes two injection core molds, a rotary member which rotates around a rotating shaft, an injection molding section including one injection cavity mold, and an ejecting section. Said injection cavity mold includes barrel cavities for molding said barrels of the preforms, and handle cavities communicated with said barrel cavities for molding said handles, when said handle cavities are located at the outside of said barrel cavities in the radial direction of said rotary member. The width of an outside part of said injection cavity mold measured from the centerline of an array of said barrel cavities in the radial direction of said rotary member is larger than the width of an inside part of said injection cavity mold measured from the centerline.
摘要:
A container is made in two stages from thermoplastics material. In the first stage a preform (1) is injection moulded, the mould parts easily releasing a tubular body (2) with a closed end and an outwardly projecting rim (3) at the open end. In the second stage the still heated preform (1) is blow moulded, possibly with some preliminary mechanical stretching, with the blow pin (13) seated in the open end of the body (2) and the preform (1) held by the outer part (7) of its rim. The wall of the body (2) is expanded, and immediately below the open end it is stretched outwardly to meld with the underside of the inner part (5) of the rim. The resultant container thus has a mouth defined by an inset lip. It may be of paint tin form, with a drip groove (9) around the mouth.
摘要:
A method of manufacturing blow molded products, such as an illuminating globe and a packaging container of a synthetic resin, such as polyethylene terephthalate and polycarbonate by drawing and blow molding an injection molded preform. A gate (15) is set by forming a resin reservoir (17) of a required outer diameter annularly in a parting portion between a cavity mold (11) defining a cavity (14) and a neck mold (12), the gate (15) communicating with an injection passage (18) provided in the parting portion. This enables the injection of a molten resin from the resin reservoir (17) into the cavity (14) to be effected. An injection molded preform (16) having no gate mark on an outer bottom surface thereof is subjected to drawing and blow molding to obtain a blow molded product, such as a gateless illuminating globe (30).
摘要:
A blow molded plastic bottle (10) and method and apparatus for forming, said bottle having a predetermined thickness providing sufficient strength and rigidity in its upper and lower areas to maintain their shapes as molded, a thinner, film-like thickness in the center (12) and a compression molded handle (16) integrally formed with and extending from the upper area (12A).
摘要:
The container (10) includes a body (11) and a wall (15) extending upwardly from a body opening (12). The wall surrounds a dispensing spout (16) which extends above the top (18) of the wall. A web (20) joins the wall and the dispensing spout to form a drain channel (21). A drain opening (26) is defined adjacent the channel for draining fluid from the channel into the container body. A cap (30) having a depending skirt (34) defining threads (35) mates with threads (27) on the container wall to close the container.
摘要:
Die Erfindung offenbart einen Vorformling (20) mit einem Körper (22), der eine innere Wandung (22i) und eine äußere Wandung (22a) definiert, und mit einer Mündung (26). Der Körper (22) besitzt eine Wandstärke (22v). Der Vorformling (20) ist mit einem Mittel (30) versehen, das ein Siegel (38) umfasst, das eine Wandstärke (38d) besitzt, die kleiner als die Wandstärke (22v) des Vorformlings (20) ist, so dass mindestens in einem Innenraum (25) des Vorformlings (20) sterile Bedingungen während der Handhabung des Vorformlings (20) aufrecht erhalten bleiben. Das Siegel (38) ist derart ausgebildet, dass es zumindest teilweise plastisch und/oder elastisch deformierbar oder brechbar ist. Die Vorformlinge (20) können zumindest mit den sterilen Bedingungen des Innenraums (25) des Vorformlings (20) von einem Erwärmungsschritt (64) an ein Blasrad (3) übergeben werden. Die Erfindung offenbart auch ein Verfahren zum Handhaben und Verarbeiten von Vorformlingen.
摘要:
Ein Kunststoffbehältnis (1), insbesondere Kunststoffvorformling (1), mit einem Grundkörper (2), einem an dem Grundkörper angeordneten Gewindebereich (4), wobei der Gewindebereich (4) einteilig mit dem Grundkörper (2) ausgebildet ist und mit einem wenigstens abschnittsweise ringförmigen Abschnitt (6) der unterhalb des Gewindebereichs (4) angeordnet ist und sich in einer radialen Richtung (R) des Kunststoffbehältnisses (1) nach aussen erstreckt und der einteilig mit dem Grundkörper (2) ausgebildet ist, wobei der ringförmige Abschnitt (6) eine erste dem Grundkörper (2) zugewandte Oberfläche (6a) und eine zweite dem Gewindebereich (4) zugewandte Oberfläche (6b) aufweist und wobei der Grundkörper (2) einen diesen abschließenden Kuppenbereich (8) aufweist. Erfindungsgemäß weist der Kunststoffvorformling (1) eine Markierung (10) auf, welche für wenigstens eine Eigenschaft des Kunststoffvorformlings (1) charakteristisch ist, und diese Markierung (10) ist an einem in einer Längsrichtung (L) des Kunststoffvorformlings (10) unterhalb des Gewindebereichs (4) liegenden Oberflächenabschnitt (A) des Kunststoffvorformlings (1) wobei sich dieser Oberflächenabschnitt (A) in einem von 0° abweichenden Winkel bezüglich der Längsrichtung (L) des Kunststoffvorformlings (1) erstreckt. Auch eine Spritzgussform zum Herstellen eines solchen Kunststoffvorformlings wird beschrieben.