Abstract: A blow molding apparatus comprises: a continuous transport section provided with a loop-shaped transport path for continuously transporting a preform; an intermittent transport section for intermittently transporting the preform to a blow molding section; and a delivery section for holding the preform being transported on the transport path, and delivering it to the intermittent transport section. The delivery section is equipped with a cooling means for jetting a cooling fluid from a first nozzle member onto an outer surface of the preform to cool the preform locally.

Abstract: A configuration including: a primary blow molding station including: an injection molding part configured to injection-mold a plurality of preforms simultaneously; a primary blow molding part configured to blow-mold the preform to form a first blow-molded article; and a first transport device including a first transport path and configured to intermittently circulate and transport a plurality of the preforms and the first blow-molded article along the first transport path at a predetermined interval; and a secondary blow molding station installed independently of the primary blow molding station, the secondary blow molding station including: a secondary blow molding part configured to blow-mold the first blow-molded article to form a resin container; and a second transport device configured to hold the first blow-molded article at a downstream side of the primary blow molding part in the first transport path and transport the first blow-molded article 40 to the secondary blow molding part.

Abstract: 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.

Abstract: A blow core mold unit includes a first core member configured to be loosely fitted to a neck portion of a preform, a second core member provided around the first core member and in contact with a neck mold, and a third core member provided in a space portion formed between the first core member and the second core member, and the blow core mold unit has a second supply flow path for supplying a high-pressure fluid into the space portion.

Abstract: A blow mold is provided and includes a cavity mold composed of a pair of split molds for forming a cavity in which a preform is to be housed, a link member having one end side pivotably supported by a shaft member, and having on another end side a recess insert die which presses the preform during blow molding to form a grip portion, and a cam member which is provided lateral to the cavity mold so as to be linearly movable, and which presses the link member in accordance with a linear movement thereof to pivot the link member.

Abstract: A blow molding machine includes a support member and a moving mechanism that moves the support member to a projecting position a storing position. The blow molding machine includes a first fixed fulcrum shaft, and the support member includes a base end portion rotatably supported by the first fixed fulcrum shaft and a free end portion provided with a first movable fulcrum shaft. The moving mechanism includes a plurality of links connected rotatably to each other, one of the plurality of links being rotatably supported by the movable fulcrum shaft of the support member, and, when the support member is set at the projecting position, the plurality of links are maintained linearly by a first angle fixing tool, thereby enabling the plurality of links to serve as a leg portion that supports the free end portion of the support member.

Abstract: 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.

Abstract: A bottom section has a ground contact section which is provided at the outer periphery of a body section, and a raised bottom section which is provided inside the ground contact section. The raised bottom section is provided with a recessed section provided at the center, and a connection section which connects the recessed section and the ground contact section. The recessed section side end of the connection section is configured to be located closer to the neck side than the ground contact section side end when inner pressure is at ambient pressure.

Abstract: A container is configured so that a bottom section has a ground contact section provided to the outer periphery of a body section, and a raised bottom section provided inside the ground contact section and deformed in accordance with a change in inner pressure; the raised bottom section is provided with an upper surface section provided at the center, and a connection section which connects the upper surface section and the ground contact section; the connection section is formed so that, when the inner pressure is normal pressure, the upper surface section-side end of the connection section is positioned closer to a neck section than the ground contact section-side end of the connection section; and at least the connection section of the bottom section is provided with a reinforcement section which extends in the radial direction of the bottom section and reinforces the bottom section.

Abstract: 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.

Abstract: A wide-neck synthetic resin container has a neck, a body and a bottom. A top side of the neck is sealed by a cap. The neck includes a neck tubular section, an engagement section protruding outward therefrom and engaging the cap, and a flange protruding outward at the top side. The flange protrudes less than the engagement section. The neck's top side includes a first top side formed by the neck tubular section, and a second top side formed by the flange that is the same height level with the first top side and increases an area of the top side. The neck tubular section has a uniform thickness at an area immediately below the flange and an area where the engagement section is formed. A thickness of the flange is smaller than that of the neck tubular section, and the neck has been crystallized.

Abstract: A blow mold method for a double-walled container, including: blowing in which an intermediate molded article is molded by stretch blowing a preform housed in a die; and pressing in which the intermediate molded article is pressed inside the die and a double-walled container is molded. During the pressing, an internal floor-corresponding section is pressed such that internal wall-corresponding section is inverted as far as the inside of an outer wall-corresponding section, in a state in which heat retention is maintained such that the internal wall-corresponding section can be inverted as far as the inside of the outer wall-corresponding section.

Abstract: A blow molding machine includes a support member that supports a mold component and a moving mechanism that moves the support member to a projecting position toward the outside of the machine and to a storing position. The machine includes a first fixed fulcrum shaft. The support member includes a base end portion rotatably supported by the first fixed fulcrum shaft and a free end portion having a first movable fulcrum shaft. The moving mechanism has rotatably interconnected links. One link is rotatably supported by the movable fulcrum shaft. In the projecting position, the links are maintained linearly by a first angle fixing tool to serve as a leg portion that supports the support member's free end portion.

Abstract: A biaxial stretch blow molding device comprises: a first guide shaft which is erected on an upper base and to which a blow core fixing member is slidably coupled; a second guide shaft erected on the stretch rod fixing member; a support member fixed to the first guide shaft and provided with a guide hole through which the second guide shaft is slidably inserted; a first drive device that moves the blow core fixing member forward and backward independently of the stretch rod fixing member; and a second drive device that moves the stretch rod fixing member forward and backward independently of the blow core fixing member.

Abstract: A blow molding device of the invention includes a pair of blow cavity split molds (50A, 50B), a chuck member (80) that chucks a mouth portion (20) and conveys a preform (10A), a blow core mold (70) that includes a tubular portion (71) which surrounds circumferences of the mouth portion and a flange (25) and introduces blow air into the preform, and a pair of projecting members (60A, 60B) which have a halved ring shape and are provided detachably on each upper surface of the pair of blow cavity split molds. Each of the pair of projecting members includes an airtight sealing portion (61) which is in contact with a lower end face of the tubular portion of the blow core mold, and a positioning portion (62) which positions the flange of the preform.

Abstract: A molded article removing device for removing a small and lightweight molded article from a molding machine includes: a first removing member receiving the molded article from a removing unit of the molding machine; a second removing member receiving the molded article from the first removing member; a first drive mechanism moving the first removing member in a horizontal direction; and a second drive mechanism moving the second removing member in a vertical direction, each of the first removing member and the second removing member includes: an accommodating portion accommodating the molded article; and a shutter plate sliding in the horizontal direction to open and close the accommodating portion, and the molded article is accommodated in the accommodating portion in a state where the accommodating portion is closed, and is dropped from the accommodating portion by opening the accommodating portion.

Abstract: Provided is a resin container for a water server, the container including an upper surface portion where a liquid inlet and outlet portion is formed, a side surface portion connected to the upper surface portion, and a bottom surface portion disposed on a side opposite to the upper surface portion and connected to the side surface portion. A round corner surface portion is formed to the side surface portion such that the container has a polygonal shape with round corners when the container is viewed from an upper surface portion side. A wall thickness of a shoulder portion of the upper surface portion which is defined between the round corner surface portion of the side surface portion and the inlet and outlet portion is larger than a wall thickness of a portion of the upper surface portion which is adjacent to the shoulder portion.

Abstract: A blow mold includes: a pair of movable molds for forming engagement grooves of a container body; and advancing/retreating mechanism units for advancing and retreating the movable molds between a standby position and a molding position. The advancing/retreating mechanism units are equipped with drive shafts to which the movable molds are fixed and which are rotatably supported with respect to a cavity mold; actuator devices which each have a linear-motion shaft capable of advancing and retreating in a direction orthogonal to the drive shaft and which are each swingably provided with respect to the cavity mold; and link members each having an end side fixed to the drive shaft outside the cavity mold and an opposite end side coupled to the linear-motion shaft.

Abstract: A mold includes a link member including a protruding grip forming part configured to form a grip part to a portion of a container by pressurizing a portion of a preform that is expanded during blow molding; and a piston member configured to move forward toward a cavity to thus press and rotate the link member. The grip forming part has: a pressurizing surface configured to pressurize the portion of the preform; and a contact surface configured to come into contact with the piston member, wherein the piston member has a pressing surface that comes into contact with the contact surface and presses the grip forming part toward an inside of the cavity when moving the pressurizing surface, and wherein the pressurizing surface is arranged at an opposite side of the contact surface of the grip forming part with respect to a moving direction of the piston member.

Abstract: A temperature adjustment part is configured to stretch a preform by moving a temperature adjustment rod toward a bottom surface portion (lower body portion) side of a body portion by a predetermined distance, after inserting the temperature adjustment rod into the preform to bring the temperature adjustment rod into contact with an inner surface of the body portion of the preform other than a boundary portion between the body portion and a neck portion.