Device and method for producing resin container

A manufacturing method for manufacturing a resin container, the manufacturing method comprising:

• injection-molding a preform;
• transporting the preform from an injection-molding part to at least a temperature adjustment part;
• adjusting a temperature of the preform to which the injection-molding has been performed in the temperature adjustment part;
• and
• blow-molding the preform whose temperature has been adjusted;
• wherein the temperature adjustment part is configured to:
• cool a body portion and bottom portion of the preform from an outer surface of the preform, using a first temperature adjustment mold;
• and
• cool the body portion and the bottom portion of the preform from an inner surface of the preform, using a second temperature adjustment mold, and
• wherein, in the temperature adjustment part, the preform is cooled so that at least the outer surface temperature of the preform is lowered within a temperature range from 10° C. to 50° C. as compared to the outer surface temperature of the preform when the preform is carried into the temperature adjustment part,
• wherein the second temperature adjustment mold is an air introduction/discharge member that causes a compressed air to come into contact with and convect within the inner surface of a body portion and of a bottom portion of the perform during cooling of the perform.

A manufacturing apparatus for manufacturing a resin containers, the manufacturing apparatus comprising:

• an injection molding part configured to injection-mold a first number of preforms;
• a temperature adjustment part configured to adjust a temperature of a second number of preforms among the first number of preforms molded in the injection molding part, the second number being smaller than the first number;
• a blow molding part configured to blow-mold the temperature-adjusted preforms, the second number of preforms being blow-molded at one time;
• and
• a take-out part configured to take out the second number of blow-molded containers;
• and
• a transportation mechanism configured to transport the preforms from the injection molding part to the blow molding part,
• wherein the temperature adjustment part is configured to perform multistage temperature adjustment processes, and to reduce differences of temperature among the second number of blow-molded preforms,
• wherein the temperature adjustment part includes at least:
• a receiving part configured to receive the preforms from the injection molding part;
• a post-cooling part configured to cool the preforms received from the receiving part;
• a first conveyance path provided between the post-cooling part and a reheating part;
• the reheating part configured to reheat the post-cooled preforms;
• and
• a second conveyance path provided between the reheating part and the blow molding part,
• wherein, in the reheating part, heating and temperature uniformizing in order of reheating, temperature uniformizing, and reheating is performed for the post-cooled preform, and
• wherein, in the receiving part, the first number of preforms are cooled by contact with ambient air and a receiving pot mold at a machine operating time after injection molding.

A manufacturing method for manufacturing resin containers, the manufacturing method comprising:

• injection-molding a first number of preforms;
• adjusting a temperature of a second number of preforms among the first number of the injection-molded preforms, the second number being smaller than the first number;
• and
• blow-molding, by a blow molding part, the preforms whose temperature has been adjusted, the second number of preforms being blow-molded at one time;
• and
• taking out the second number of the blow-molded preforms,
• wherein the adjusting temperature includes multistage temperature adjustment processes, and reduces differences of temperature among the second number of blow-molded preforms,
• wherein the adjusting a temperature includes at least:
• receiving the preforms from the injection molding part;
• post-cooling the received preforms;
• conveying the preforms from the post-cooling to reheating,
• reheating the post-cooled preforms;
• and
• conveying the preforms from the reheating to the blow molding,
• wherein the adjusting temperature includes a plurality of processes of cooling the preforms to promote temperature uniformizing,
• wherein, in the reheating, heating and temperature uniformizing in order of reheating, temperature uniformizing, and reheating is performed for the post-cooled preform, and
• wherein, in the receiving, the first number of preforms are cooled by contact with ambient air and a receiving pot mold at a machine operating time after injection molding.