A power supply device for a molding machine with an intermediate circuit, which can be connected with at least one drive of the molding machine and is suitable for supplying the at least one drive with electrical energy; a supply module connected to the intermediate circuit; an energy storage device connected to the intermediate circuit; and a closed loop control device for closed loop controlling an energy content of the energy storage device. The energy storage device can be closed loop controlled by means of the closed loop control device so that the energy content of the energy storage device does not go outside a range, in which a power input and/or a power output of the energy storage device is essentially constant.

An injection molding machine includes: a fixed side member; and a movable side member fixed to the fixed side member, the movable side member being driven by a motor in order to perform injection molding of a molded product. The injection molding machine further includes a power feeding apparatus, one or more motors, and at least one servo amplifier. The power feeding apparatus converts a three-phase AC voltage into a DC voltage. The one or more of the motors are provided in the movable side member and drive the movable side member. The at least one servo amplifier is provided in the movable side member and drives one of the one or more of the motors by the DC voltage being supplied thereto through a DC power supply line.

The invention relates to an injection moulding machine having: an electric machine; multiple switching units electrically connected in parallel, wherein each switching unit has at least one electrical output and at least one electrical switch associated with the output, wherein corresponding outputs of the switching units are electrically connected in parallel with a common output; at least one primary open-loop and/or closed-loop controller which is designed to control the switching units with control signals in order to operate the electric machine; a measuring device for measuring output currents at the outputs; and at least one correction controller which is designed to adjust a corresponding control signal in the event of a deviation between a measured output current at an output and a target value.

The invention relates to a material conveying device for feeding at least one injection molding and/or extrusion unit with a non-free-flowing or viscous feed material, having a feed hopper rotatable relative to a bracket about an axis of rotation and a screw conveyor arranged rotatably along an inner jacket surface of the feed hopper in a screw shaft of the bracket, which is designed to convey the feed material from the feed hopper to an outlet, wherein the screw shaft is connected to a hopper outlet of the feed hopper, and wherein the screw conveyor is drivable via at least one drive device.

In order to enable the conveying of feed materials with different properties in the simplest possible way, it is provided that at least one media feed channel opens into the screw shaft, which is designed to feed at least one additional medium to the feed material, wherein at least one mixing device is arranged in the region of the screw conveyor and/or downstream of the screw conveyor, which is designed to mix the feed material and the additional medium.

A hot runner injection molding apparatus comprising an injection molding manifold having an inlet melt channel and a plurality of outlet melt channels and a plurality of hot runner nozzles coupled to the outlet melt channels. Each hot runner nozzle includes a nozzle body defining a first nozzle body melt channel having a first axis. A nozzle tip housing is coupled to the nozzle body which includes at least two auxiliary melt channel portions each auxiliary melt channel portion has a second axis which is angled with respect to the first axis. At least two nozzle tips are arranged at the nozzle tip housing and in the area of each nozzle tip a nozzle tip heater is arranged, which is oriented substantially along the first melt channel.

An injection molding device includes a housing having a door, an injection molding machine, a detection section, and a control section. The control section controls voltage applied to the mold clamping motor, and performs mold-clamping and mold-opening of the upper mold and the lower mold by either moving the injection unit and the upper mold along the vertical direction or by moving the lower mold along the vertical direction. The mold clamping device further includes a first brake section that, when application of voltage to the mold clamping motor is stopped, regulates movement of the injection unit and the upper mold in the vertical direction or movement of the lower mold in the vertical direction. When the detection section detects that the door is open or detects intrusion of foreign matter, the control section stops application of voltage to the mold clamping motor.

An injection molding device injects a plasticized material into a mold and performs injection molding of a molded product, the injection molding device including: a plasticizing unit configured to plasticize a material and generate the plasticized material; a first hot runner including a first flow path that communicates with the plasticizing unit and through which the plasticized material flows, a first nozzle portion that communicates with the first flow path and injects the plasticized material, and a first heater that heats the plasticized material in the first flow path; and a control unit configured to control injection of the plasticized material, in which the first nozzle portion is made of a metal material, and the control unit includes a first temperature control unit that is electrically coupled to the first heater and controls a temperature of the first heater and a second temperature control unit that is electrically coupled to the first nozzle portion and controls a temperature of the first nozzle portion by supplying a current to the first nozzle portion.