Nissei Asb Machine Co., Ltd.

Daizaburo Takehana

Toshiteru Oike

Kazuyuki Yokobayashi

Fumiyuki Nakazawa

Yoichi Tsuchiya

Masaki Yamaguchi

Yasuo Ozaki

Tomoaki Tsuchiya

Yukihiro Ichihashi

Masaki Aimi

Kazuyukl Yokobayashi

There is provided a mold unit for cooling a preform that has been injection-molded, the preform having a bottomed shape and made of a resin, the mold unit including a core mold having an outer shape corresponding to an inner shape of the preform, and being insertable into the preform, in which a flow path for a temperature adjustment medium extending in an axial direction of the core mold is formed inside the core mold, the flow path is formed at a position displaced in a circumferential direction of the core mold, and a position of the flow path is adjustable in the circumferential direction.

Die unit, blow molding device, and blow molding method

In a manufacturing method for a delamination method, in a second injection molding including forming a second layer on an inner peripheral side of a first layer of a preform having a bottomed cylindrical shape, a second resin material is guided from an opening portion formed in the first layer toward the inner peripheral side of the first layer, and a locking portion protruding from the opening portion toward an outer peripheral side of the first layer is integrally formed with the second layer.

Manufacturing method and manufacturing apparatus for delamination container

There is provided a cooling mold unit for cooling a preform that has been injection-molded, the preform having a bottomed shape and made of a resin, the cooling mold unit including a core mold having an outer shape corresponding to an inner shape of the preform, and being insertable into the preform, in which an exhaust port configured to discharge air from an inside of the preform through an inside of the core mold is provided at a tip end portion of the core mold facing a bottom portion of the preform.

Molding unit for cooling resin molded article, blow molding device, injection molding device, and method

A mold includes a position adjustment mechanism that receives a shaft portion extending from a cavity mold, which accommodates a preform, and adjusts a position where the cavity mold is held on a plane intersecting an extending direction of the shaft portion. The position adjustment mechanism includes a first member in which a linear cam hole that receives the shaft portion is formed, and a second member that is disposed to overlap the first member in the extending direction of the shaft portion and rotates with respect to the first member along a plane. The second member has an elongated hole that intersects the cam hole in a direction of the plane and positions the shaft portion together with the cam hole. Further, a position where the cam hole and the elongated hole intersect each other moves along a longitudinal direction of the cam hole by rotation of the second member.

Mold and device for manufacturing resin container

In a manufacturing method for a delamination container, in a first injection molding, a first recess portion is formed by a first protrusion portion in at least part of a first layer. In a second injection molding, a second recess portion which penetrates the first layer and through which a surface of a second layer is exposed is formed in a preform by inserting a second protrusion portion into the first recess portion. During a blow molding, the second recess portion is stretched to form an air introduction hole in an outer layer of the delamination container.

An injection molding mold including: a flow path through which a molten resin passes; a main body portion including an introduction portion configured to introduce the molten resin into the flow path and a supply portion configured to supply the molten resin from the flow path to a cavity mold; and a plug unit formed with a plug flow path which is a part of the flow path, the plug unit being attachable to the main body portion, in which a prevention portion configured to prevent a pressure loss from occurring when the molten resin passes through the flow path is formed at a portion of the plug flow path where a moving direction of the molten resin changes.

Die for injection molding, production apparatus for container made of resin, and plug unit

A mold for injection molding includes: three or more cavity rows, each cavity row having a plurality of cavities; and a cooling flow path configured to allow a cooling medium to flow through the cooling flow path, the cooling medium cooling the cavities, the cooling flow path including: at least one supply port; a distribution conduit communicated with the supply port; a supply conduit communicated with the distribution conduit; a cavity cooling portion communicated with the supply conduit and provided to an outer periphery of the cavities; a discharge conduit communicated with the cavity cooling portion; a collecting conduit communicated with the discharge conduit; and at least one discharge port communicated with the collecting conduit, and the supply conduit and the discharge conduit are parallel to the cavity rows, and at least one supply conduit and at least one discharge conduit are provided for each cavity row.

Mold

A blow molding mold unit comprising: a plurality of blow molds each including: a pair of split molds forming a plurality of cavities arranged in a row in a first direction, a plurality of bottom molds respectively corresponding to the cavities, and a bottom mold fixing plate to which the plurality of bottom molds are fixed, the plurality of blow molds being arranged in a second direction perpendicular to the first direction, first fixing members holding split molds that are arranged at both end positions in the second direction, the first fixing members being fixed to a mold clamping plate, second fixing members arranged between the first fixing members, and to which split molds other than the split molds fixed to the first fixing members are fixed, a push-up rod disposed below the bottom mold fixing plate, and a push-up member configured to be coupled to a lifting device and extending along the second direction below the second fixing members, the push-up member being configured to push up, via the push-up rod, the bottom mold fixing plate to lift the plurality of bottom molds arranged in the second direction.

Blow molding mold unit

An object of the present invention is to provide a blow molding device, a blow molding method, a mold unit, and a jig capable of shortening a molding cycle time. There is provided a blow molding device (), in which the blow molding device () includes an injection molding part () injection-molding a preform () having a neck portion () on an open side and a main body portion () on a closed side, a temperature adjustment part () adjusting a temperature of the preform () molded by the injection molding part (), and a blow molding part () blow-molding the preform () whose temperature has been adjusted by the temperature adjustment part (), and the temperature adjustment part () include a conditioning core mold () that is in contact with substantially an entire inner surface of the main body portion () and a conditioning cavity mold () that is in contact with substantially an entire outer surface of the main body portion (), and compress and deform the main body portion () of the preform () into a desired shape with the main body portion () sandwiched between the conditioning core mold () and the conditioning cavity mold ().

Blow molding device, blow molding method, and mold unit

A blow molding method includes: performing a primary blowing on a resin preform to form an intermediate molded product; and performing a final blowing on the intermediate molded product to form a final molded product, and at least one step of performing the primary blowing and the final blowing includes a thinning step of continuously repeatedly performing, within a predetermined time, steps of: stretching an object by blowing; and contracting stretched parts of the object by exhausting blown air.

Blow-molding method and blow-molding apparatus

A method for manufacturing a resin container part includes: injection-molding of a bottomed resin preform including, on a bottom portion thereof, a thick bulging portion that retains residual heat by which the bulging portion is deformable by being pressed to follow a shape of a blow cavity mold; and a blowing including stretching a body portion of the preform by applying a blow pressure to the preform and forming a joint portion by pressing the bulging portion of the preform with an upper bottom mold to deform the bulging portion to follow the shape of the blow cavity mold.

Method for manufacturing resin container part, mold unit, and blow molding machine including the mold unit

The present application provides: first base members that respectively hold split molds disposed at both ends in a second direction, and are fixed to a mold clamping plate; second base members disposed between the first base members and having the split molds other than the split molds fixed to the first base members fixed thereto; and coupling members that couple the first base members and the second base members in a state that allows each of the pair of split molds to come into contact or separate. The present invention is configured such that the plurality of second base members follow the movement of the first base members.

Die unit for blow molding, and blow molding device

In a cooling adjustment step of cooling a preform held within an injection space to a predetermined temperature, cooling intensity for an injection core moldis reduced as compared with cooling intensity for an injection cavity mold

Injection blow molding method and injection blow molding apparatus for hollow container

A blow molding apparatus includes: an injection molding section for injection molding a plurality of preforms at a time; a cooling section for cooling the preforms; a heating section for heating the preforms while continuously transporting them along a transport line; and a blow molding section for blow molding the preforms to form hollow containers. The blow molding section includes a primary blow molding section which is equipped with a heat-treating blow mold and blow molds the preforms moved from the transport line into the heat-treating blow mold to form intermediate molded products, and a secondary blow molding section which is equipped with a final blow mold and blow molds the intermediate molded products moved from the heat-treating blow mold into the final blow mold to form the hollow containers.

Blow molding apparatus

A blow mold unit in which, when clamping first and second blow cavity split molds which are fixed to first and second fixing plates and bottom molds which are fixed to a bottom mold fixing plate, pressure receiving members fixed to the first and second fixing plates are brought into engagement with the bottom plate fixing plate. Guide plates are fixed to the bottom mold fixing plate, and guided members capable of being brought into abutment with the guide plates are supported by first and second pressure receiving plates. The bottom mold fixing plate includes a first connecting portion to be connected to a bottom mold opening/closing unit and a second connecting portion to be connected to a moving and biasing member.

Growing community of inventors

Nagano, Japan

Daizaburo Takehana