A system for forming a container from a preform includes a first mold having a plurality of first portions that cooperate to define a first internal surface against which the preform is blown for forming a first form. The system also includes a second mold having a plurality of second portions that cooperate to define a second internal surface against which the first form is blown for forming a second form. Also, the system includes a mold servo motor that actuates the plurality of first portions relative to each other and/or actuates the plurality of second portions relative to each other. Furthermore, the system includes a controller that controls the mold servo motor for controlled actuation of the plurality of first portions and/or the plurality of second portions.

A method for manufacturing a fiber-reinforced resin tube body includes: a preparing step of preparing a cylindrical expandable body having fiber wound therearound; an installing step of installing the expandable body in a mold after the preparing step; a flowing step of flowing resin into the mold, in which the expandable body is placed, after the installing step; and an expanding step of expanding the expandable body toward an inner wall of the mold after the flowing step.

A blow molding method includes a primary blow molding step that molds a preform (200) in a primary blow mold (300A) that includes a primary temperature control section (330) to obtain an intermediate molded article (202), a shrinkage step that discharges blow air from the intermediate molded article to shrink the intermediate molded article, and a secondary blow molding step that blow-molds the intermediate molded article (204) that has shrunken in a secondary blow mold that includes a secondary temperature control section (430) to obtain a final molded article. The primary blow molding step cools a first intermediate molding region of the intermediate molded article that follows a neck using a first primary temperature control section, and the shrinkage step shrinks a second intermediate molding region of the intermediate molded article of which the temperature is controlled by a second primary temperature control section.

A blow molding method includes a primary blow molding step that molds a preform (200) in a primary blow mold (300A) that includes a primary temperature control section (330) to obtain an intermediate molded article (202), a shrinkage step that discharges blow air from the intermediate molded article to shrink the intermediate molded article, and a secondary blow molding step that blow-molds the intermediate molded article (204) that has shrunken in a secondary blow mold that includes a secondary temperature control section (430) to obtain a final molded article. The primary blow molding step cools a first intermediate molding region of the intermediate molded article that follows a neck using a first primary temperature control section, and the shrinkage step shrinks a second intermediate molding region of the intermediate molded article of which the temperature is controlled by a second primary temperature control section.

A hollow body forming mold includes left and right half molds, a bottom of the left half mold is provided with a left avoidance slot, a bottom of the right half mold is provided with a right avoidance slot, a left bottom slider is disposed in the left avoidance slot, a right bottom slider is disposed in the right avoidance slot, and the left and right bottom sliders constitute a group of sliders. The mold design resolves a difficult problem that a fabrication hole exists during forming of a hollow body with a built-in component by using an existing conventional process. The hollow body forming method has the advantages of a short forming period, the high production efficiency, good combination between a built-in component and an inner wall of an fuel tank, and the high location stability.

A hollow body forming mold includes left and right half molds, a bottom of the left half mold is provided with a left avoidance slot, a bottom of the right half mold is provided with a right avoidance slot, a left bottom slider is disposed in the left avoidance slot, a right bottom slider is disposed in the right avoidance slot, and the left and right bottom sliders constitute a group of sliders. The mold design resolves a difficult problem that a fabrication hole exists during forming of a hollow body with a built-in component by using an existing conventional process. The hollow body forming method has the advantages of a short forming period, the high production efficiency, good combination between a built-in component and an inner wall of an fuel tank, and the high location stability.

The invention relates to a device and a method for semi-continuous blow moulding of fiber-reinforced, thermoplastic, endless, hollow-profile-shaped components with longitudinally constant or varying cross-sections, consisting of at least one consolidation tool, which, in its closed state, encloses a preform enclosing an elastically moldable pressure chamber.

A molding unit (1) for blow molding a container from a parison, the container including a wall portion and a base, the molding unit (1) including: a mold sidewall (2) extending along a main axis (X) and having an inner molding surface (3) defining a counter print of the wall portion of the container, and an opening (8) at a lower end of the inner molding surface (3), a cylinder jacket (10) fixed to the mold sidewall (2) and extending axially below the opening (8); a movable mold base (14) having a cylindrical bracket (17) slidingly received within the cylinder jacket (10) and a body (15) axially protruding from the bracket (17), a wear ring (33) fixed to the mold base (14), the wear ring (33) including a cylindrical guiding bushing (34) interposed between the bracket (17) and the cylinder jacket (10).

A preform conveying device (100) of the invention includes a control unit that detects an arriving time at which a conveyor jig arrives at a reference position based on an output of a first encoder, and commands a second motor to move a conveyor arm to a target position at regular intervals from the arriving time. The target position in each command is a position obtained by adding, to a current position of the conveyor jig which is obtained based on a latest output of the first encoder which was obtained when the command has been issued, a moving distance by which the conveyor jig has advanced during a delay time T which spans from a time when the latest output is outputted from the first encoder to a time when the command is received by the second motor.

A method for producing a balloon from a suitable blank is provided. The blank is introduced into an outer mold heated an first expanded to expand it against the inner wall of the outer mold. Pressure is reduced to relax the blank away from the inner wall. The three-dimensional volume of the mold is changed. Second expanding of the blank expands again against the inner wall of the changed volume of the outer mold. Balloons of the invention consist of a middle cylindrical region and two end regions delimiting the middle cylindrical region. With a pressure application of 6 bar, a ratio of the cross section in the middle region to the cross section in the end region is at least 2, and preferably greater than 3.