Nissei Asb Machine Co., Ltd.

Minoru Takada

Koichi Sato

Kazuyuki Yokobayashi

Atsushi Sakurai

Shuichi Ogihara

Yoichi Netsu

Yoichi Tsuchiya

Kazuya Kitamura

Shyuichi Ogihara

Kouichi Satoh

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.

Injection stretch blow molding device with transfer station and pitch changing for blow molding

An injection blow molding system includes an injection molding station ( ), a first delivery section ( ), a cooling station ( ), a heating station ( ), a second delivery section ( ) and a plurality of blow molding stations ( ). The station ( ) simultaneously injection molds M rows of N preforms ( ) arranged in a second direction (B) perpendicular to a first direction (A) in which the preforms ( ) are carried. The first delivery section ( ) removes the M rows of preforms ( ) using a removing mechanism ( ) in their upright state while decreasing the pitch in the rows. The preforms are inverted with the column pitch changed by an inverting mechanism ( ) before delivery to the cooling station in their inverted state. The cooling and heating stations ( ), ( ) cool and heat one row of N preforms ( ) while parallel carrying them along a first carrying chain ( ). The second delivery section ( ) delivers the preforms ( ) to two blow molding stations while in their inverted state. Each blow molding station ( ) stretch blow molds the N/2 preforms into containers at the same time.

System of injection blow molding and injection molding device

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.

Method of molding heat-resistant containers

Injection stretch blow molding apparatus with upright preform molding and inverted blow molding

A heat blow molding apparatus includes a supply section,a heating station,a transfer section,and a blow molding station,all of which are disposed linearly in a direction A in which preforms,are carried. The supply section,supplies the preforms,each having a neck portion in their inverted state. The heating station,simultaneously heats the inverted preforms,while they are being carried parallel to each other. The transfer section,transfers the inverted preforms,after they have been heated by the heating station. The blow molding station,simultaneously blow molds the inverted preforms,transferred from the transfer section,into containers.

Heating blow forming apparatus and heating blow forming method

Injection blow molding machine, injection blow molding method and

Apparatus and method of molding heat-resistant containers

An injection stretch blow molding apparatus has a preform molding section for molding preforms and a blow molding section for blow molding containers from the preforms retaining heat from when the preforms were injection molded. At a location in a path along which the preforms are carried from the preform molding section to the blow molding section there is a discharge guide section for guiding preforms which are not to be carried to the blow molding section off the carrying path. A method wherein preforms are injection molded in preform molding section and these preforms are carried to a blow molding section and containers are blow molded from the preforms retaining heat from when the preforms were injection molded, includes the steps of switching to either a container molding operating mode using the above steps or a preform molding operation mode wherein part way along the preform carrying path leading to the blow molding section, the preforms being molded in the preform molding section are discharged from the carrying path.

Injection stretch blow molding apparatus and method with discharge guide

An injection stretch blow molding apparatus and method wherein while the preforms are amply cooled the injection molding cycle time is shortened and furthermore a small number of blow cavities are used. In an injection molding section, N (N.gtoreq.2) preforms are injection molded in an upright state and then released from the injection cavity mold. While the preforms are cooled by the injection core mold, they are carried to a preform ejecting section. After the preforms cool to a temperature at which they can be ejected, the preforms are ejected from the injection core mold. In a transfer station, an array pitch of the simultaneously molded preforms are changed to a blow molding pitch, and then the preforms are transferred to a blow molding station in an inverted state. In the blow molding station, each preform is carried by a carrier member through a heating section into a blow molding section. In the blow molding section, n bottles are simultaneously blow molded from n preforms.

Injection stretch blow molding apparatus

An injection stretch blow molding apparatus and method wherein while the preforms are amply cooled the injection molding cycle time is shortened and furthermore a small number of blow cavities are used and the operation rate of these blow cavities is increased. In an injection molding section, N (N.gtoreq.2) preforms are injection molded and then released from the injection cavity mold at a relatively high mold-release temperature. While the preforms are cooled by the injection core mold, they are carried to a preform ejecting section. After the preforms cool to a temperature at which they can be ejected, the preforms are ejected from the injection core mold. In a transfer station, n (1.ltoreq.n&lt;N) of the simultaneously molded N preforms at a time are transferred to a blow molding station in (N/n) transfer operations. In the blow molding station, each preform is carried by a carrier member through a heating section and a standby section into a blow molding section. In the blow molding section, n bottles are simultaneously blow molded from n preforms.

Method of injection molding a preform and apparatus for the same

An injection molding apparatus in which a hot-runner mold is moved with respect to the injection nozzle of an injection unit is disclosed. In a position in which the injection nozzle comes into contact is provided a first fixed link with a runner formed therein. A second fixed link with a runner formed therein is fixed to the hot-runner mold, and moves integrally with the hot-runner mold. Between these links is provided an intermediate runner block system, with runners formed therein. The intermediate runner block system is constructed from a first intermediate link supported rotatably by the first fixed link and a second intermediate link supported rotatably by the second fixed link, and these two intermediate links are also rotatably coupled together. This plurality of links forms a link construction, so that regardless of the movement of the hot-runner mold the resin path between the injection nozzle and the hot-runner mold is maintained.

Injection molding apparatus and blow-molding apparatus using said

An injection stretch blow molding method sequentially circulates a plurality of neck mold moving units for supporting and conveying neck molds adapted to hold the neck portions of hollow containers and preforms used to mold the hollow containers at least through preform injection molding, blow molding and ejecting stations, the preform injection molding step, the blow molding step for blow molding the hollow containers from the preforms having their potential heat provided by the injection molding step and the product ejecting step being repeatedly carried out. The injection molding stations of M in number are provided for blow molding stations of N in number (M&gt;N.gtoreq.1). Preforms are injection molded in each of the injection molding stations at an injection molding start time staggered from those of the other injection molding stations by time equal to N.times.T/M where T is an injection molding cycle time in each of the injection molding stations. The neck mold moving units are sequentially moved from the injection molding stations to the empty blow molding station after the respective one of the injection molding stations has molded the preforms. The preforms are blow molded into the hollow containers in the blow molding stations through their blow molding cycle time which is set within N.times.T/M.

Growing community of inventors

Ueda, Japan

Minoru Takada