A die casting machine includes a plurality of ejector pins capable of advancing and retracting together with respect to the internal portion of a die; an electric motor capable of driving the plurality of ejector pins; a position sensor capable of detecting the positions of the plurality of ejector pins; a force sensor capable of detecting the pressure which is given to the molding material inside the die by the plurality of ejector pins; a display device capable of displaying images, and a control device controlling the electric motor and display device. The control device includes a drive control part which controls the electric motor so as to generate a driving force making the plurality of ejector pins advance to the inside of the die after the start of injection and before die opening, and a display control part which controls the display device so as to display the position detected by a position sensor and the pressure detected by a force sensor along a common time axis.

Provided is a resin molding apparatus that can suppress a molding problem caused by a variation in a thickness of an object to be molded or suppress a variation in a thickness of a resin molded part, and can perform a mold releasing operation. A resin molding apparatus includes: a molding mold having one mold and the other mold; one mold wedge mechanism; and one mold cavity block driving mechanism. In a state that a height position of one mold cavity block is set using the one mold cavity block driving mechanism and a position in a direction away from the other mold in the one mold cavity block having been moved to the height position is fixed to be limited using the one mold wedge mechanism, a mold releasing operation can be performed using the one mold wedge mechanism and the one mold cavity block driving mechanism.

Provided is a resin molding apparatus that can suppress a molding problem caused by a variation in a thickness of an object to be molded or suppress a variation in a thickness of a resin molded part, and can perform a mold releasing operation. A resin molding apparatus includes: a molding mold having one mold and the other mold; one mold wedge mechanism; and one mold cavity block driving mechanism. In a state that a height position of one mold cavity block is set using the one mold cavity block driving mechanism and a position in a direction away from the other mold in the one mold cavity block having been moved to the height position is fixed to be limited using the one mold wedge mechanism, a mold releasing operation can be performed using the one mold wedge mechanism and the one mold cavity block driving mechanism.

A method and apparatus for injection molding of plastic material into a cavity of a mold by means of at least one injector whose opening and closing occurs through an electronic control unit and wherein an undesired opening of the mold caused by any overpressure of the plastic material injected into the cavity of the mold is detected by means of transducers and corrected by means of the electronic control unit. The transducers are arranged outside the cavity of the mold.

A method of manufacturing an in-mold decorative molded article capable of transferring a decorative pattern with target dimensions at a target position of a decorative molded article according to the present disclosure includes supplying an in-mold transfer foil to a metal mold, in which a clear layer having transparency and lower extensibility than a base material film is formed in the first layer on an in-mold raw fabric configured by forming a mold releasing layer and a primer layer on the base material film and a decorative figure is printed in the second and subsequent layers on the in-mold raw fabric, clamping the metal mold, injecting and cooling a molding resin and taking out an molded article formed of the molding resin cooled and cured in the metal mold in which the clear layer and a transfer layer having the decorative figure in the in-mold transfer foil are integrated on the surface by opening the mold, molding the molded article integrally with a cutting portion not necessary for a target product inside the metal mold by the molding resin at an outer periphery of the product and arranging a boundary of a printing region of the clear layer in the in-mold transfer foil in the cutting portion so as to be larger than the outer periphery of the product.

A method of manufacturing an in-mold decorative molded article capable of transferring a decorative pattern with target dimensions at a target position of a decorative molded article according to the present disclosure includes supplying an in-mold transfer foil to a metal mold, in which a clear layer having transparency and lower extensibility than a base material film is formed in the first layer on an in-mold raw fabric configured by forming a mold releasing layer and a primer layer on the base material film and a decorative figure is printed in the second and subsequent layers on the in-mold raw fabric, clamping the metal mold, injecting and cooling a molding resin and taking out an molded article formed of the molding resin cooled and cured in the metal mold in which the clear layer and a transfer layer having the decorative figure in the in-mold transfer foil are integrated on the surface by opening the mold, molding the molded article integrally with a cutting portion not necessary for a target product inside the metal mold by the molding resin at an outer periphery of the product and arranging a boundary of a printing region of the clear layer in the in-mold transfer foil in the cutting portion so as to be larger than the outer periphery of the product.

A method for decorative molding capable of reducing a preparation time at the time of replacing a mold and expecting improvement in positioning accuracy of a decorative pattern in a molded article includes supplying a film on which a decorative pattern is formed between a first mold and a second mold in a mold open state of a mold, imaging a mold-side alignment mark recorded in the mold and a film-side alignment mark recorded in the film by a camera, positioning the film with respect to the mold by moving the film so that the film-side alignment mark comes close to the mold-side alignment mark, injecting resin into the mold in a mold closed state in which the film is sandwiched between the first mold and the second mold and cooling the resin to form a molded article and opening the mold and taking out the molded article in which the decorative pattern of the film is transferred to the surface.

A method for decorative molding capable of reducing a preparation time at the time of replacing a mold and expecting improvement in positioning accuracy of a decorative pattern in a molded article includes supplying a film on which a decorative pattern is formed between a first mold and a second mold in a mold open state of a mold, imaging a mold-side alignment mark recorded in the mold and a film-side alignment mark recorded in the film by a camera, positioning the film with respect to the mold by moving the film so that the film-side alignment mark comes close to the mold-side alignment mark, injecting resin into the mold in a mold closed state in which the film is sandwiched between the first mold and the second mold and cooling the resin to form a molded article and opening the mold and taking out the molded article in which the decorative pattern of the film is transferred to the surface.

A controller includes a mold movement control unit that moves a movable mold between a first position separated from a fixed mold and a second position at which mold closing is completed; a determining unit determines the presence of abnormalities in at least one of the movable mold and the fixed mold on the basis of inspection information acquired from at least one of the movable mold and the fixed mold and outputs a confirmation signal related to the presence of abnormalities; and a mold stopping unit that stops movement of the movable mold on the basis of whether the confirmation signal output from the determining unit is acquired while a safety confirmation condition is satisfied after the mold movement control unit starts moving the movable mold from the first position toward the second position.

A controller includes a mold movement control unit that moves a movable mold between a first position separated from a fixed mold and a second position at which mold closing is completed; a determining unit determines the presence of abnormalities in at least one of the movable mold and the fixed mold on the basis of inspection information acquired from at least one of the movable mold and the fixed mold and outputs a confirmation signal related to the presence of abnormalities; and a mold stopping unit that stops movement of the movable mold on the basis of whether the confirmation signal output from the determining unit is acquired while a safety confirmation condition is satisfied after the mold movement control unit starts moving the movable mold from the first position toward the second position.