A heating apparatus (5) in an injection molding apparatus (1000) comprising: a heatable sleeve or jacket (10) comprised of a sheet (14) of highly heat conductive metal material, formable into a heating cylinder (14c) having a central channel (16) receiving a selected nozzle (40), a stabilization ring or cylinder (20) adapted to receive a selected longitudinal portion (DL) of the downstream or distal end (14de) of the heating cylinder (14c) and to engage or mate an inner circumferential surface (20is) with an outer surface (14os) of the heating cylinder.

A method for using an injection mold for manufacturing plastic components, in particular components of power tools, the injection mold containing a sprue plate, a push-in device and an ejector plate. A cavity is between the sprue plate and the ejector plate when the sprue plate and the ejector plate are in an assembled state, and the ejector plate containing a fiber channel, through which a fiber bundle having a thermoplastic matrix is transportable to the cavity, via the push-in device, along at least part of the sprue plate. The method includes assembling the sprue plate and the ejector plate; heating the fiber bundle together with the thermoplastic matrix; positioning the fiber bundle at the cavity via the push-in device; introducing a liquid plastic into the cavity through a channel of the sprue plate; and introducing the fiber bundle into the cavity so that the fiber bundle is positioned in the cavity by the stream of liquid plastic.

The present disclosure provides an injection molding apparatus, including a fixed mold component, a movable mold component, a first positive electrode module, and a first negative electrode module. The fixed mold component has an injection port and a transmission runner, to receive injection-molding melt. The movable mold component has a molding groove communicated with the transmission runner. The first positive electrode module and the first negative electrode module are disposed on a first side and a second side of the molding groove respectively, where the first side and the second side are opposite to each other. The first positive electrode module cooperates with the first negative electrode module to form an electric field between the first side and the second side of the molding groove, to perform electric field excitation on the injection-molding melt flowing into the molding groove.

A melt distributor has an orifice for receiving molten plastic. A plurality of melt distributor channels are in fluid communication with the orifice and each of the plurality of melt distributor channels have substantially the same length and cross-sectional volume. A plurality of injection tips terminates each of the melt distributor channels. A channel passes through each of the injection tips, a first end which is in fluid communication with a corresponding one of the melt distributor channels and a second end of which is for connecting to a corresponding injection port of a corresponding mold. Molten plastic flows at substantially equal flow rates and timing through each of the melt distributor channels and through each of the injection tips, entering each of the two injection ports of each mold at substantially the same timing, flow rate, and temperature.

A nozzle heater assembly coupled to a hot runner nozzle includes a heater support made of at least two support segments spaced apart by a gap. A heater element secured to both support segments is configured to limit the gap between the two segments. The nozzle heater assembly to be coupled to a hot runner may also include in other applications a heater support formed of a single piece and configured as a hollow helical tube including at least two axial gaps. A heater element is secured to the helical tube, where the helical tube can be compressed or stretched axially to alter a clamping force generated when the helical tube and the heater are coupled to the hot runner nozzle.

The present disclosure provides an injection molding apparatus, including a fixed mold component, a movable mold component, a first positive electrode module, and a first negative electrode module. The fixed mold component has an injection port and a transmission runner, to receive injection-molding melt. The movable mold component has a molding groove communicated with the transmission runner. The first positive electrode module and the first negative electrode module are disposed on a first side and a second side of the molding groove respectively, where the first side and the second side are opposite to each other. The first positive electrode module cooperates with the first negative electrode module to form an electric field between the first side and the second side of the molding groove, to perform electric field excitation on the injection-molding melt flowing into the molding groove.

An injection assembly including a cover part which covers an upper surface of a controller and in which a plurality of injection holes are formed to correspond to positions of a plurality of heating elements and a nozzle unit including a plurality of nozzles to simultaneously inject an injection material into the plurality of injection holes, wherein a pressure sensor is disposed in each of the plurality of nozzles to measure an internal pressure of the nozzle and to control an injection speed based on the measured internal pressure.