A rotor manufacturing method, which is method for manufacturing a rotor that includes a rotor core and a magnet inserted into a slot formed in the rotor core, includes a magnet-insertion step of inserting the magnet into the slot; and a fixing-material-injection step of injecting a fixing material into a space between an inner surface of the slot and the magnet from a plurality of fixing-material-injection portions of the slot. In the fixing-material-injection step, a time for starting injection of the fixing material into the slot is made to differ among the plurality of fixing-material-injection portions.

An additive injection system for use in injection molding machines to inject additive materials, such as fluids or powders, downstream of a nozzle of the injection molding machine. The additive injection unit has an additive tank to store or contain additive material and additive injectors that inject an additive material into an injection molding machine. A pump pumps the additive material from the tank through a common manifold connected to the additive injectors to be injected into the injection molding machine. A controller controls operation of the additive injection device and one or more sensors coupled to the additive injection device can provide feedback to the controller.

An injection molding machine capable of continuously injecting a molten resin is provided. An injection molding machine including: a plurality of cylinders; a plurality of pistons configured to extrude the molten resin inside the respective cylinders; a plurality of drive parts configured to drive the respective pistons; an injection part configured to inject the molten resin extruded from the plurality of cylinders; and a controller configured to control the plurality of drive parts. The controller controls the plurality of drive parts in such a way that a period during which the molten resin is injected from a first cylinder overlaps a period during which the molten resin is injected from a second cylinder and the molten resin is continuously injected from the plurality of cylinders.

An injection molding machine capable of continuously injecting a molten resin is provided. An injection molding machine including: a plurality of cylinders; a plurality of pistons configured to extrude the molten resin inside the respective cylinders; a plurality of drive parts configured to drive the respective pistons; an injection part configured to inject the molten resin extruded from the plurality of cylinders; and a controller configured to control the plurality of drive parts. The controller controls the plurality of drive parts in such a way that a period during which the molten resin is injected from a first cylinder overlaps a period during which the molten resin is injected from a second cylinder and the molten resin is continuously injected from the plurality of cylinders.

An apparatus for producing a fiber-reinforced injection molded component includes an injection mold half with a mold cavity and a receiving chamber open to the mold cavity. A band section of a fiber-reinforced plastics band is fed into the receiving chamber through a feed channel and a first clamping device arranged in an initial region of the receiving chamber and a second clamping device arranged in an end region of the receiving chamber clamp the fiber-reinforced plastics band section within the receiving chamber. A first cut-through device arranged in the initial region of the receiving chamber and a second cut-through device arranged in the end region of the receiving chamber cut the band section such that an injection molded component formed in the cavity of the mold includes the cut fiber-reinforced plastics band section and a fiber-reinforced injection molded component is provided.

An apparatus for producing a fiber-reinforced injection molded component includes an injection mold half with a mold cavity and a receiving chamber open to the mold cavity. A band section of a fiber-reinforced plastics band is fed into the receiving chamber through a feed channel and a first clamping device arranged in an initial region of the receiving chamber and a second clamping device arranged in an end region of the receiving chamber clamp the fiber-reinforced plastics band section within the receiving chamber. A first cut-through device arranged in the initial region of the receiving chamber and a second cut-through device arranged in the end region of the receiving chamber cut the band section such that an injection molded component formed in the cavity of the mold includes the cut fiber-reinforced plastics band section and a fiber-reinforced injection molded component is provided.

An injection-molding system includes an extruding system configured to produce a mixture; a discharging channel communicable with the extruding system and including an outlet configured to discharge the mixture; and molding devices configured to receive the mixture. Each of the molding devices includes a hollow space, and a feeding port communicable with the hollow space and engageable with the outlet. An injection-molding method includes providing an extruding system configured to produce a mixture, a discharging channel including an outlet, and first and second molding devices; engaging the outlet with the first molding device; injecting the mixture into the first molding device; disengaging the outlet from the first molding device; moving the discharging channel away from the first molding device and toward the second molding device; engaging the outlet with the second molding device; injecting the mixture into the second molding device; and disengaging the outlet from the second molding device.

An injection-molding system includes an extruding system configured to produce a mixture; a discharging channel communicable with the extruding system and including an outlet configured to discharge the mixture; and molding devices configured to receive the mixture. Each of the molding devices includes a hollow space, and a feeding port communicable with the hollow space and engageable with the outlet. An injection-molding method includes providing an extruding system configured to produce a mixture, a discharging channel including an outlet, and first and second molding devices; engaging the outlet with the first molding device; injecting the mixture into the first molding device; disengaging the outlet from the first molding device; moving the discharging channel away from the first molding device and toward the second molding device; engaging the outlet with the second molding device; injecting the mixture into the second molding device; and disengaging the outlet from the second molding device.

An injection molding system comprising: a first selected valve, one or more downstream valves, delivering a fluid to a mold cavity, at least one fluid property sensor that detects a flow front of fluid material flowing downstream through the mold cavity at a trigger location within the cavity disposed between the first gate and at least one selected downstream gate, a controller instructing an actuator associated with the downstream gates to open the gates at a predetermined open gate target time on a first injection cycle, each valve associated with a position sensor that detects opening of a gate at an actual open gate time to the controller, the controller automatically adjusting time of instruction to open the gates on a subsequent injection cycle by an adjustment time equal to any delay in time between the predetermined open gate target time and the actual open gate time.

An injection molding system comprising: a first selected valve, one or more downstream valves, delivering a fluid to a mold cavity, at least one fluid property sensor that detects a flow front of fluid material flowing downstream through the mold cavity at a trigger location within the cavity disposed between the first gate and at least one selected downstream gate, a controller instructing an actuator associated with the downstream gates to open the gates at a predetermined open gate target time on a first injection cycle, each valve associated with a position sensor that detects opening of a gate at an actual open gate time to the controller, the controller automatically adjusting time of instruction to open the gates on a subsequent injection cycle by an adjustment time equal to any delay in time between the predetermined open gate target time and the actual open gate time.