A temperature adjustment device (2) for thermally conditioning preforms (10) made of a thermoplastic material for subsequent molding including a transport device based on the rotary principle for transporting the preforms along a transport path that has at least one section with two adjacent transport lanes (32, 34) for transporting the preforms in two adjacent rows. Heating elements (36) are arranged between the transport lanes for heating the preforms. Each heating element acts on preforms in both transport lanes. At least one compensation device (22, 22′, 23, 24) for compensating for temperature differences between the preforms is assigned to the two transport lanes, which exclusively or more strongly acts on preforms in one of the two transport lanes for adjusting their temperature. Also, a container manufacturing machine (1) for manufacturing containers (12) from preforms that includes a temperature adjustment device.

A temperature adjustment device (2) for thermally conditioning preforms (10) made of a thermoplastic material for subsequent molding including a transport device based on the rotary principle for transporting the preforms along a transport path that has at least one section with two adjacent transport lanes (32, 34) for transporting the preforms in two adjacent rows. Heating elements (36) are arranged between the transport lanes for heating the preforms. Each heating element acts on preforms in both transport lanes. At least one compensation device (22, 22′, 23, 24) for compensating for temperature differences between the preforms is assigned to the two transport lanes, which exclusively or more strongly acts on preforms in one of the two transport lanes for adjusting their temperature. Also, a container manufacturing machine (1) for manufacturing containers (12) from preforms that includes a temperature adjustment device.

A temperature adjustment device (2) for thermally conditioning preforms (10) made of a thermoplastic material for subsequent molding including a transport device based on the rotary principle for transporting the preforms along a transport path that has at least one section with two adjacent transport lanes (32, 34) for transporting the preforms in two adjacent rows. Heating elements (36) are arranged between the transport lanes for heating the preforms. Each heating element acts on preforms in both transport lanes. At least one compensation device (22, 22′, 23, 24) for compensating for temperature differences between the preforms is assigned to the two transport lanes, which exclusively or more strongly acts on preforms in one of the two transport lanes for adjusting their temperature. Also, a container manufacturing machine (1) for manufacturing containers (12) from preforms that includes a temperature adjustment device.

A temperature adjustment device (2) for thermally conditioning preforms (10) made of a thermoplastic material for subsequent molding including a transport device based on the rotary principle for transporting the preforms along a transport path that has at least one section with two adjacent transport lanes (32, 34) for transporting the preforms in two adjacent rows. Heating elements (36) are arranged between the transport lanes for heating the preforms. Each heating element acts on preforms in both transport lanes. At least one compensation device (22, 22′, 23, 24) for compensating for temperature differences between the preforms is assigned to the two transport lanes, which exclusively or more strongly acts on preforms in one of the two transport lanes for adjusting their temperature. Also, a container manufacturing machine (1) for manufacturing containers (12) from preforms that includes a temperature adjustment device.

A method of manufacturing a polypropylene vessel using a single-step injection stretch blow molding machine using a heat-conditioning step. The method may include providing a chemical composition comprising polypropylene, forming a preform vessel of the chemical composition in a second shape, heating the preform vessel at a plurality of positions on the preform vessel with heat pots, wherein each of the heat pots is configured to heat a corresponding one of the plurality of positions on the preform vessel by raising a temperature of the heat pot to a respective temperature, wherein each respective temperature of each of the heat pots is different from another respective temperature of another of the heat pots, wherein the temperatures of the heat pots are based on the desired first shape of the product. The method may include forming, from the heated and expanded preform, a second vessel in a desired first shape.

A method of manufacturing a polypropylene vessel using a single-step injection stretch blow molding machine using a heat-conditioning step. The method may include providing a chemical composition comprising polypropylene, forming a preform vessel of the chemical composition in a second shape, heating the preform vessel at a plurality of positions on the preform vessel with heat pots, wherein each of the heat pots is configured to heat a corresponding one of the plurality of positions on the preform vessel by raising a temperature of the heat pot to a respective temperature, wherein each respective temperature of each of the heat pots is different from another respective temperature of another of the heat pots, wherein the temperatures of the heat pots are based on the desired first shape of the product. The method may include forming, from the heated and expanded preform, a second vessel in a desired first shape.

A manufacturing apparatus for manufacturing a resin container includes an injection molding part configured to injection-mold a preform, and a temperature adjustment part configured to adjust a temperature of the preform molded in the injection molding part, in which the manufacturing apparatus is configured to blow-mold the preform whose temperature has been adjusted in the temperature adjustment part, the preform is inserted into the temperature adjustment part in a state where an outer surface temperature of the preform is higher than a glass transition temperature of the preform by 30° C. or higher and 60° C. or lower, and the preform is cooled to a predetermined temperature suitable for blow molding in the temperature adjustment part.

A manufacturing apparatus for manufacturing a resin container includes an injection molding part configured to injection-mold a preform, and a temperature adjustment part configured to adjust a temperature of the preform molded in the injection molding part, in which the manufacturing apparatus is configured to blow-mold the preform whose temperature has been adjusted in the temperature adjustment part, the preform is inserted into the temperature adjustment part in a state where an outer surface temperature of the preform is higher than a glass transition temperature of the preform by 30° C. or higher and 60° C. or lower, and the preform is cooled to a predetermined temperature suitable for blow molding in the temperature adjustment part.

A core rod assembly (10) for blow molding includes a core rod head (16), a first fluid pathway (A1) extending along a first length of the core rod head (16), and a second fluid pathway (A2) extending along a second length of the core rod head (16). The first and second fluid pathways (A1, A2) may be fluidly isolated from each other and provide selective temperature control of respective first and second portions of the core rod assembly (10) during the blow molding process. At least a portion of the first fluid pathway (A1) may be longitudinally offset from the second fluid pathway (A2) so as to define respective first and second temperature zones (zone 1, zone 2) along the respective first and second portions of the core rod assembly (10).

A method of manufacturing a polypropylene vessel using a single-step injection stretch blow molding machine using a heat-conditioning step. The method may include providing a chemical composition comprising polypropylene, forming a preform vessel of the chemical composition in a second shape, heating the preform vessel at a plurality of positions on the preform vessel with heat pots, wherein each of the heat pots is configured to heat a corresponding one of the plurality of positions on the preform vessel by raising a temperature of the heat pot to a respective temperature, wherein each respective temperature of each of the heat pots is different from another respective temperature of another of the heat pots, wherein the temperatures of the heat pots are based on the desired first shape of the product. The method may include forming, from the heated and expanded preform, a second vessel in a desired first shape.