A plasticizing unit for a shaping machine for plasticizing a material to be plasticized, wherein at least one plasticizing screw is rotatably mounted in a plasticizing cylinder and stationarily mounted in relation to a longitudinal axis of the plasticizing cylinder, wherein the plasticizing cylinder has at least one opening at a periphery of the plasticizing cylinder, and that at least one opening connects the plasticizing cylinder to at least one mass storage means, and that there is provided an actuator for expelling a storage mass which can be stored in the at least one mass storage means.

A plasticizing unit for a shaping machine for plasticizing a material to be plasticized, wherein at least one plasticizing screw is rotatably mounted in a plasticizing cylinder and stationarily mounted in relation to a longitudinal axis of the plasticizing cylinder, wherein the plasticizing cylinder has at least one opening at a periphery of the plasticizing cylinder, and that at least one opening connects the plasticizing cylinder to at least one mass storage means, and that there is provided an actuator for expelling a storage mass which can be stored in the at least one mass storage means.

An injection molding machine that contributes to improving the quality of a workpiece is provided. An injection molding machine configured to causes torpedo pistons to be slid in one way to thereby plasticize a resin material supplied to a first space of a cylinder, and causes a molten resin to flow into a second space of the cylinder and causes the torpedo pistons to be slid in the other way to thereby inject the molten resin. The injection molding machine includes pressurizing pistons inserted into the torpedo pistons so that the pressurizing pistons can be slid in such a way that an amount of protrusion of the cylinder into the second space of the cylinder with respect to the torpedo pistons is changed, and energizing means for energizing the pressurizing pistons toward the second space of the cylinder.

A core molding apparatus and a core molding method capable of reducing the possibility of the deterioration in the calculation accuracy of the amount of supply of a raw material for a core are provided. A core molding apparatus includes: a kneading tank configured to knead a raw material for a core; a raw material supply unit configured to supply the raw material to the kneading tank; a mold configured to contain a kneaded material made of the raw material kneaded in the kneading tank and to mold the core; a piston configured to inject the kneaded material contained in the kneading tank into the mold; and a control unit configured to control an amount of supply of the raw material from the raw material supply unit to the kneading tank.

A core molding apparatus and a core molding method capable of reducing the possibility of the deterioration in the calculation accuracy of the amount of supply of a raw material for a core are provided. A core molding apparatus includes: a kneading tank configured to knead a raw material for a core; a raw material supply unit configured to supply the raw material to the kneading tank; a mold configured to contain a kneaded material made of the raw material kneaded in the kneading tank and to mold the core; a piston configured to inject the kneaded material contained in the kneading tank into the mold; and a control unit configured to control an amount of supply of the raw material from the raw material supply unit to the kneading tank.

An apparatus for molding a part includes a plunger cavity, a plunger, and a mold cavity, wherein the plunger is oriented out-of-plane with respect to a major surface of the mold cavity, and first and second vents couples to respective first and second portions of the mold cavity. In a method, resin and fiber are forced into the mold cavity from a plunger cavity, and at least some of the fibers and resin are preferentially flowed to certain region in the mold cavity via the use of vents.

An injection molding machine includes a cylinder that accommodates a molten resin, a discharging nozzle, a piston that discharges the molten resin from the discharging nozzle, and one or more processors configured to execute the following functions. The functions include calculating a target pressure at which a flow rate of the molten resin discharged from the discharging nozzle becomes an indicated flow rate, controlling a pressure of the molten resin in the cylinder such that the pressure becomes the target pressure, acquiring a temperature of the molten resin in the cylinder, and acquiring a pseudo-plastic viscosity corresponding to the temperature of the molten resin. The target pressure is calculated based on the indicated flow rate, the temperature of the molten resin, the pseudo-plastic viscosity, and the size of the discharging nozzle.

An injection molding machine includes a cylinder that accommodates a molten resin, a discharging nozzle, a piston that discharges the molten resin from the discharging nozzle, and one or more processors configured to execute the following functions. The functions include calculating a target pressure at which a flow rate of the molten resin discharged from the discharging nozzle becomes an indicated flow rate, controlling a pressure of the molten resin in the cylinder such that the pressure becomes the target pressure, acquiring a temperature of the molten resin in the cylinder, and acquiring a pseudo-plastic viscosity corresponding to the temperature of the molten resin. The target pressure is calculated based on the indicated flow rate, the temperature of the molten resin, the pseudo-plastic viscosity, and the size of the discharging nozzle.

It is an object of the present invention to provide a resin molded body capable of appropriately and easily improving strength compared to the prior art. The resin molded body according to the present invention includes first phases (21, 24) in which convex and concave parts extend in substantially linear directions (D, E), observed within a measurement range (A) of 5 μm×5 μm arbitrarily selected on a resin cross section and the first phases account for 50% or more. The first phases are preferably in a crystalline state. A second phase made of an amorphous substance (25) is preferably interposed between the first phases.

It is an object of the present invention to provide a resin molded body capable of appropriately and easily improving strength compared to the prior art. The resin molded body according to the present invention includes first phases (21, 24) in which convex and concave parts extend in substantially linear directions (D, E), observed within a measurement range (A) of 5 μm×5 μm arbitrarily selected on a resin cross section and the first phases account for 50% or more. The first phases are preferably in a crystalline state. A second phase made of an amorphous substance (25) is preferably interposed between the first phases.