A molding method for a resin molded article includes: a step of sandwiching a sheet-shaped resin in a molten state extruded downward by a pair of rollers, and sending out downward the sheet-shaped resin in the molten state by a rotational driving of the rollers so as to allow a first stretching; a step of drawing downward the sheet-shaped resin in the molten state sent out downward so as to allow a second stretching; a step of disposing the sheet-shaped resin in the molten state that is drawn in a side portion of a mold disposed below the pair of rollers; and a step of molding the sheet-shaped resin into a shape conforming to a mold shape by depressurizing a sealed space formed between the sheet-shaped resin in the molten state and the mold and/or pressurizing the sheet-shaped resin toward the mold.

A resin molding system 1 comprises a gripping device 3 provided with a gripping frame 30 for gripping a resin sheet material 2, a heating device for heating the resin sheet material 2 and a molding device for clamping a lower die 61 and an upper die, and affixing the resin sheet material 2 to a substrate 63. The molding device is provided with: a lowering device for lowering the gripping device 3 and causing the resin sheet material 2 gripped by the gripping frame 30 to approach the lower die 61; and a pair of bent posts 67, 68 which are provided on both Y-direction sides of the lower die 61, and which come in contact with portions of the gripping frame 30 when the gripping device 3 is lowered, and which convexly bend the gripping frame 30 upward as viewed from the side along the Y-direction.

A resin molding system 1 comprises a gripping device 3 provided with a gripping frame 30 for gripping a resin sheet material 2, a heating device for heating the resin sheet material 2 and a molding device for clamping a lower die 61 and an upper die, and affixing the resin sheet material 2 to a substrate 63. The molding device is provided with: a lowering device for lowering the gripping device 3 and causing the resin sheet material 2 gripped by the gripping frame 30 to approach the lower die 61; and a pair of bent posts 67, 68 which are provided on both Y-direction sides of the lower die 61, and which come in contact with portions of the gripping frame 30 when the gripping device 3 is lowered, and which convexly bend the gripping frame 30 upward as viewed from the side along the Y-direction.

A method for forming a fiber-reinforced thermoplastic part may comprise the steps of locating a lightning strike protection layer on a mold surface of a mold tool, locating a thermoplastic layer over the mold tool, heating the thermoplastic layer to a pliable forming temperature, conforming the thermoplastic layer to a mold surface of the mold tool, and depositing a plurality of fiber strips over the thermoplastic layer.

A tool for a thermoforming process to form a moulded product from wet pulp fibre material includes two or more moulds each having a moulding surface, an actuator assembly, and a fluid extraction system. At least one of the moulds is displaceable by the actuator assembly between first and second positions and has fluid extraction paths extending through the mould to transport fluid away from the moulding surface. One of the moulds has a first layer that is substantially rigid to form a support member and is in communication with a heating subsystem of the fluid extraction system, and a second layer that is, in use of the tool, between the first layer and the wet pulp fibre material. The second layer is formed of a material that has interconnected internal voids forming part of the fluid extraction paths and has a lower heat transfer coefficient than the first layer.

A tool for a thermoforming process to form a moulded product from wet pulp fibre material includes two or more moulds each having a moulding surface, an actuator assembly, and a fluid extraction system. At least one of the moulds is displaceable by the actuator assembly between first and second positions and has fluid extraction paths extending through the mould to transport fluid away from the moulding surface. One of the moulds has a first layer that is substantially rigid to form a support member and is in communication with a heating subsystem of the fluid extraction system, and a second layer that is, in use of the tool, between the first layer and the wet pulp fibre material. The second layer is formed of a material that has interconnected internal voids forming part of the fluid extraction paths and has a lower heat transfer coefficient than the first layer.

The method of the present invention for producing a shaped film includes a step of arranging a thermoplastic resin film to divide a space into a first space located on one surface side of the film, and a second space located on the other surface side, a step of heating the thermoplastic resin film, a step of curving the thermoplastic resin film in one space by using a difference in pressure between the first space and the second space, a step of stopping the curving step of the thermoplastic resin film in a state where at least a convex curved surface of both surfaces of the film is exposed into the space, and a step of cooling the curved film.

A molding system capable of reducing molding defects including first and second parison forming devices; first and second molds configured to be opened and closed; and a control unit. The first parison forming device comprises a first extruder, a first accumulator, and a first injection head, the first parison forming device is configured to form a first parison by injecting a first molten resin from the first injection head after the first molten resin extruded from the first extruder is accumulated in the first accumulator, the second parison forming device comprises a second extruder, a second accumulator, and a second injection head, the second parison forming device is configured to form a second parison by injecting a second molten resin from the second injection head after the second molten resin extruded from the second extruder is accumulated in the second accumulator.

A molding system capable of reducing molding defects including first and second parison forming devices; first and second molds configured to be opened and closed; and a control unit. The first parison forming device comprises a first extruder, a first accumulator, and a first injection head, the first parison forming device is configured to form a first parison by injecting a first molten resin from the first injection head after the first molten resin extruded from the first extruder is accumulated in the first accumulator, the second parison forming device comprises a second extruder, a second accumulator, and a second injection head, the second parison forming device is configured to form a second parison by injecting a second molten resin from the second injection head after the second molten resin extruded from the second extruder is accumulated in the second accumulator.

A molding mold includes a shell mold provided with a plurality of vacuum suction holes and a backup mold for backing up the shell mold, a back surface of the shell mold and a front surface of the backup mold having the same shape and being fitted to each other. A ventilation groove is formed on the front surface of the backup mold or the back surface of the shell mold, leaving a receiving surface for receiving a mating surface, a plurality of striped grooves and ridges between the striped grooves are formed on the back surface of the shell mold or the front surface of the backup mold, the striped grooves having a feed pitch of 0.5 mm to 5.0 mm and a processing depth of 0.01 mm to 0.4 mm, and the vacuum suction holes and the ventilation groove communicate with each other through the striped grooves.