Moulding assembly (100) with an inlet (117) for receiving raw material to be ejected, a barrel (112) for gathering and processing the raw material received through the inlet (117), a screw (110) for engaging the raw material in the barrel, a first drive unit (170) configured for rotating the screw (110) in order to grind the raw material into liquid form, where the moulding assembly further comprises a second drive unit (120) configured to displace the screw (110) in a direction essentially perpendicular to the rotation direction in and out of the barrel (112) depending on the pressure in the barrel (112).

A strain gauge nozzle adapter that may be placed between a barrel end cap and a nozzle body of an injection molding system, the strain gauge nozzle adapter having a strain gauge pin that measures strain within the strain gauge nozzle adapter for use in approximating conditions within an injection molding system, such as pressure or the location of a melt flow front. The strain gauge nozzle adapter may include a plurality of strain gauge pins. An alternative material insert in the strain gauge nozzle adapter may surround a strain gauge pin to amplify meaningful measurements obtained by the strain gauge pin so that noise measurements do not compromise the accuracy of approximation of conditions within a mold.

A method for determining an actual volume Vr of an injection-moldable compound during an injection-molding process is disclosed. The injection-moldable compound is introduced into at least one cavity of the mould. The method includes the steps of: a) determining a theoretical volume Vt from process variables at least during a filling phase of the injection-molding process, b) determining and/or measuring at least one value for at least one compound pressure pM, c) selecting a material-specific compression k (p), corresponding to the value of pM, of the injection-moldable compound, and d) calculating an actual volume Vr by taking into account the compression k (p).

A molding cycle stopping method includes: in a case of stopping an operation of a molding cycle in an injection device including a heating cylinder and a screw provided in the heating cylinder, performing a temperature lowering process including lowering a temperature of the heating cylinder from a molding cycle execution temperature to a standby temperature; and performing a continuous purge process including repeatedly purging a resin until a predetermined termination condition is satisfied.

An injection molding system includes a molding device, an inspection device configured to inspect a molded product and a control device that includes a storage unit, and a reception unit configured to receive a change content of a parameter included in a standard molding condition. The control device executes a first control of forming the molded product under a second molding condition in which the parameter is changed based on the change content, a second control of forming the molded product under a third molding condition in which the same parameter is changed, a third control of associating the second molding condition with an inspection result of the molded product formed under the second molding condition and storing the association, and a fourth control of associating the third molding condition with the inspection result of the molded product formed under the third molding condition and storing the association.

A molding assistance device includes: a resin item selection section 6 for selecting an item Drc relating to a type of resin and an item Drm relating to a predetermined physical property of the resin from resin data Dr set in a resin data setting section Fmr, a physical property value input section 7 for inputting a plurality of different resin temperatures Et relating to the selected resin and physical property values Em corresponding to the respective resin temperatures Et; a physical property value conversion section 8 for obtaining a physical property value Em corresponding to any resin temperature Et; and a data conversion processing functional section Fe which operates, when a molten state is estimated, so as to provide to a calculation processing functional section Fe a resin temperature Et at the time of the estimation and a physical property value Em corresponding to the resin temperature Et and obtained by the physical property value conversion section 8.

In a method for operating an injection moulding machine in the absence of a backflow barrier, plastic melt is injected by a plasticising device into a cavity in a screw antechamber of a plasticising screw adapted to rotate about a longitudinal axis and to move translationally by a drive unit during an injection phase and a holding- pressure phase. A rotational drive of the drive unit is controlled such that a speed of the plasticising screw causes overlay of a backflow of the plastic melt from the screw antechamber back into screw threads of the plasticising screw by an opposing delivery flow as a result of a rotation of the plasticising screw due to a translational injection movement of the plasticising screw. A differential flow is established from the backflow and the opposing delivery flow and influenced at least during the injection phase by influencing the speed of the plasticising screw.

Systems and methods describe supplementing a native controller of an injection molding with a remote controller, via a retrofitting of the remote controller the injection molding machine. The remote controller may thereby modify control of an injection molding process based upon a control strategy of the remote controller, e.g., by providing a modified feedback signal to be used by a control algorithm of the native controller in lieu of a feedback signal previously used by the native controller. The remote controller may generate the modified feedback signal based upon its own control algorithm and control strategy. Furthermore, the remote controller may be configured to robustly account for behavior of the native controller so as to provide stable control of a control variable of the process according to a setpoint defined by the remote controller.

A method of adjusting a molding condition parameter of a molding machine includes determining change values of a plurality of molding condition parameters set in a molding machine in a molding process cycle, determining change timings of the plurality of parameters determined as objects to be changed with reference to timing information when the change values of the plurality of molding condition parameters are determined, and sequentially changing the plurality of parameters determined as objects to be changed according to the determined change timings.

An injection molding apparatus (10) comprising an actuator (940, 941, 942) comprised of a driver (940dr, 941dr, 942dr) receiving electrical energy or power from an electrical drive (940d, 941d, 942d), the electrical drive (940d, 941d, 942d) comprising an interface that receives and controllably distributes electrical energy or power in controllably varied amounts during the course of an injection cycle to the driver (940dr, 941dr, 942dr), the electrical drive (940d, 941d, 942d) being housed within or by an actuator housing (940h, 941h, 942h) or being mounted on or to the housing (940h, 941h, 942h), the housing (940h, 941h, 942h) and the electrical drive (940d, 941d, 942d) being mounted on, to or in close proximity to the heated manifold (40), a cooling device (940mc, 940mc1, 940mc2, 941mc, 942mc) disposed between the heated manifold (40) and the housing (940h, 941h, 942h) adapted to substantially isolate or insulate at least the electrical drive (940d, 941d, 942d) from substantial communication with heat emanating or emitted from the heated manifold (40).