摘要:
A blow molding apparatus includes an injection molding station (12) that injection-molds preforms (1A) held by N (N is an integer equal to or larger than 2) rows of holding plates (30), a temperature control station (14) that performs a temperature control operation on the preforms (1A), a blow molding station (16) that blow-molds the preforms into containers, and a row pitch change section (130) that changes the row pitch of the N rows of holding plates so that P1
摘要:
In an injection stretch blow molding method, at least one injection molded preform is transferred from a preform molding section to a blow molding section by way of a transfer section and the at least one preform is blow molded into at least one container in the blow molding section. In the preform molding section the at least one preform is injection molded in an upright state with an open neck section thereof facing upward. In the transfer section, the at least one upright preform is turned upside-down and transferred to the blow molding section in an inverted state. Then, the blow molding section blow molds at least one container from the at least one inverted preform.
摘要:
A blow mold unit includes a first and a second blow cavity split mold, and a plurality of raised-bottom molds. The blow mold unit also includes a first and a second securing plates on which the first and the second blow cavity split mold are secured, a plurality of first pressure-receiving plates respectively secured on the first and the second securing plates, a third securing plate disposed between the first and the second securing plates, the plurality of raised-bottom molds secured on the third securing plate, a plurality of shafts suspended from the third securing plate, and a plurality of second pressure-receiving plates secured on the first and the second securing plates at a position below the third securing plate.
摘要:
In an injection stretch blow molding method, at least one injection molded preform is transferred from a preform molding section to a blow molding section by way of a transfer section and the at least one preform is blow molded into at least one container in the blow molding section. In the preform molding section the at least one preform is injection molded in an upright state with an open neck section thereof facing upward. In the transfer section, the at least one upright preform is turned upside-down and transferred to the blow molding section in an inverted state. Then, the blow molding section blow molds at least one container from the at least one inverted preform.
摘要:
A blow molding apparatus for blow molding a preform into a container has a rectangular carrying path, carrier members each of which supports and carries the preform and container, an endless carrying member for circulatorily driving the carrier members along the path, a first transferring portion for transferring the preform supplied from outside of the apparatus to at least one of the carrying members, a heating section for heating the preform supported by the at least one carrying member, a blow molding section for blow molding the heated preform into the container, a second transferring portion for transferring the blow molded container outside of the apparatus, at least one guidable member disposed at each of the carrying members, and at least one guide member for guiding the at least one guidable member in each of the carrying members in order to transfer each of the carrying members along the rectangular carrying path. The heating section preferably has a plurality of first heaters on one side of the path, spaced apart in a vertical direction and extending in a preform carrying direction, a reflecting plate facing the first heaters across the path, and a plurality of second heaters extending in the preform carrying direction on both sides of the path, and positioned at such a height in the vertical direction that the second heaters face regions subject to blow molding in the vicinities of the neck portions of the preforms.
摘要:
An injection molding apparatus for a preform is disclosed, having an injection molding station (14) and a cooling and ejection station (16). In the injection molding station (14), neck cavity molds (60), injection core molds (50) and an injection cavity mold (42) are clamped and preforms (1) are injection molded. Thereafter, the injection cavity mold (42) is separated at a relatively high temperature. The preforms (1) are transferred to the cooling and ejection station (16) while being cooled by the injection core molds (50) and neck cavity molds (60). While the next preforms (1) are being injection molded in the injection molding station (14), in the cooling and ejection station (16) cooling of the preforms (1) continues. After cooling the preforms (1) to a temperature suitable for release, the injection core molds (50) are separated only through a stroke sufficient to allow a space to open between core pins (52) of the injection core molds 50 and the inner surface of the preforms (1). Thereafter the neck cavity molds (60) are separated and the preforms (1) are ejected. When the injection molding of the next preforms (1) in the injection molding station (14) is completed, a rotary wheel (30) is driven rotatingly in the opposite direction to the previous operation, and the injection core molds (50) and neck cavity molds (60) are interchanged between the two stations (14 and 16).
摘要:
A method of manufacturing a can body includes injection molding a preform including forming a bottom wall, a side wall, a curved shoulder and a flange extending outwardly from the shoulder. After molding, the preform is subjected to a stretch blow molding process to form the can body.
摘要:
A blow molding apparatus includes an injection molding station (12) that injection-molds preforms (1A) held by N (N is an integer equal to or larger than 2) rows of holding plates (30), a temperature control station (14) that performs a temperature control operation on the preforms (1A), a blow molding station (16) that blow-molds the preforms into containers, and a row pitch change section (130) that changes the row pitch of the N rows of holding plates so that P1
摘要:
In an injection stretch blow molding method, at least one injection molded preform is transferred from a preform molding section to a blow molding section by way of a transfer section and the at least one preform is blow molded into at least one container in the blow molding section. In the preform molding section the at least one preform is injection molded in an upright state with an open neck section thereof facing upward. In the transfer section, the at least one upright preform is turned upside-down and transferred to the blow molding section in an inverted state. Then, the blow molding section blow molds at least one container from the at least one inverted preform.
摘要:
A heat-resistant container molding apparatus and method which are compact and inexpensive and can reliably increase the crystallinity, reduce the residual stress in a container filled with a hot content such as thermally sterilized fruit juice, and prevent a thermal deformation with improved container stability at a raised temperature. The apparatus has a receiving and removing unit for receiving primary moldings obtained by blow-molding preforms and for removing final products, a heat treatment section for heating the primary moldings by bringing the primary moldings into contact with the inner wall of a heat treatment mold while pressurizing the interior of the primary moldings within the heat treatment mold, a final molding section for blow molding intermittent moldings into final products within a final blow mold, and a rotary plate, neck support fixing plate and neck support member for conveying the moldings through the receiving and removing unit, heat treatment section and final molding section.