A method of manufacturing a molded part includes inserting melt into a cavity of a first tool part, and the first tool part and a second tool part are moved away from one another during or after the insertion of the melt by moving a mold clamping plate relative to a mold clamping plate such that in the first tool part or in a second tool part an at least partial clearance of a first or second zone of the cavity takes place, and a gap is formed between the first tool part and the second tool part. Melt is further inserted into the cleared area of the cavity, and the gap is bridged by an at least already partially solidified section of the melt. A holding force is transmitted from the second tool part through the partially solidified section of the melt bridging the gap to the first tool part.

A method of manufacturing a molded part includes inserting melt into a cavity of a first tool part, and the first tool part and a second tool part are moved away from one another during or after the insertion of the melt by moving a mold clamping plate relative to a mold clamping plate such that in the first tool part or in a second tool part an at least partial clearance of a first or second zone of the cavity takes place, and a gap is formed between the first tool part and the second tool part. Melt is further inserted into the cleared area of the cavity, and the gap is bridged by an at least already partially solidified section of the melt. A holding force is transmitted from the second tool part through the partially solidified section of the melt bridging the gap to the first tool part.

An injection molding system, water jet cutting machine or other industrial system has a synthetically controlled variable displacement fluid working machine which outputs hydraulic fluid to one or more fluid consumers, such as rams or hydraulic motors, through hydraulically stiff fluid retaining volumes and receives hydraulic fluid back from one or more fluid consumers through the same or other said hydraulically stiff fluid retaining volumes. Individual piston cylinder assemblies can be allocated to different outputs. There may be no valve between the machine and the consumers. A working chamber of the machine can be caused to undergo a motoring cycle to enable the machine to output more power than is received from a motor driving the machine. An accumulator can be used to provide a source of hydraulic compliance. The machine can be controlled using pressure control, flow control, feed forward control or variable power/variable power limit control.

In a first aspect of the invention there is provided a method of forming a leading edge protection shield on a wind turbine blade shell. The method comprises providing at least a portion of a wind turbine blade shell comprising a windward surface, a leeward surface, and a leading edge, providing a leading edge mould comprising a concave curved mould surface and arranging the mould over the leading edge of the blade shell such that a generally C-shaped cavity is defined between the blade shell and the mould surface. The method further comprises clamping the mould to the windward surface and/or to the leeward surface of the blade shell using a clamping arrangement spaced from the leading edge in a chordwise direction. The method further comprises providing an edge scaling arrangement positioned between the leading edge and the clamping arrangement in the chordwise direction, and forming a seal between the mould surface and the windward and leeward surfaces of the blade shell using the edge sealing arrangement to define windward and leeward edges of the C-shaped cavity. The mould surface is substantially tangential to the windward and leeward surfaces at the windward and leeward edges such that the C-shaped cavity tapers in thickness towards the windward and leeward edges of the C-shaped cavity. The method further comprises supplying polymer to the C-shaped cavity to form a leading edge protection shield on the blade shell.

In a first aspect of the invention there is provided a method of forming a leading edge protection shield on a wind turbine blade shell. The method comprises providing at least a portion of a wind turbine blade shell comprising a windward surface, a leeward surface, and a leading edge, providing a leading edge mould comprising a concave curved mould surface and arranging the mould over the leading edge of the blade shell such that a generally C-shaped cavity is defined between the blade shell and the mould surface. The method further comprises clamping the mould to the windward surface and/or to the leeward surface of the blade shell using a clamping arrangement spaced from the leading edge in a chordwise direction. The method further comprises providing an edge scaling arrangement positioned between the leading edge and the clamping arrangement in the chordwise direction, and forming a seal between the mould surface and the windward and leeward surfaces of the blade shell using the edge sealing arrangement to define windward and leeward edges of the C-shaped cavity. The mould surface is substantially tangential to the windward and leeward surfaces at the windward and leeward edges such that the C-shaped cavity tapers in thickness towards the windward and leeward edges of the C-shaped cavity. The method further comprises supplying polymer to the C-shaped cavity to form a leading edge protection shield on the blade shell.

A method of producing an assembled product includes a first step of clamping a mold including a first unit and a second unit, a second step of forming the plurality of parts by injecting molten resin into each of a plurality of cavities, a third step of opening the mold, and a fourth step of respectively opposing the plurality of parts held by the first unit in the third step to corresponding assembling portions of the second unit. The first through fourth steps are repetitively performed, and in the first step, the plurality of parts held by the first unit are supplied to the corresponding assembling portions, and the plurality of cavities are defined by first forming portions of the first unit and second forming portions of the second unit.

A liquid injection molding apparatus is provided. The liquid injection molding apparatus comprises a mold assembly; a clamping unit; an injector including a barrel; a feed screw concentrically located in the barrel; and a motor having a drive shaft removably coupled to the feed screw via a bayonet connector.

In an injection molding machine in which intermediate molds are disposed movably in a mold opening/closing direction between a movable platen attached with a movable mold and a stationary platen attached with a stationary mold, setting is simplified when individually setting a setting value related to molding using the movable mold and the intermediate mold and a setting value related to molding using the stationary mold and the intermediate mold. In a method for controlling an injection molding machine 11 in which intermediate molds 18 are disposed movably in a mold opening/closing direction between a movable platen 15 attached with a movable mold 14 and a stationary platen 17 attached with a stationary mold 16, single setting enables setting of both of a setting value related to molding using the movable mold 14 and the intermediate mold 18 and a setting value related to molding using the stationary mold 16 and the intermediate mold 18.

A clamping unit of an injection molding machine having platens and columns includes a clamping-type locking apparatus by which a column is securable in relation to one of the platens at any position along a travel path of the platens relative to one another. The clamping-type locking apparatus includes a clamping jacket and a clamping device for clamping-type locking of the column in relation to the clamping jacket. The clamping device is displaceable together with the column along the travel path within the clamping jacket, when the clamping device assumes a released state, and the clamping device is configured to effect a clamping action by generating between the clamping jacket and the clamping device a locking force which is directed radially outwards in relation to a longitudinal axis of the column.

Disclosed is a hydraulic system for a molding system, the molding system having a clamp actuator and an injection actuator, the hydraulic system comprising a clamp accumulator for storing hydraulic fluid for use in actuating the clamp actuator; an injection accumulator for storing hydraulic fluid for use in actuating the injection actuator; a pump for conveying hydraulic fluid to the clamp accumulator and the injection accumulator; and a selector valve for selectively fluidly connecting the pump to one of the clamp accumulator and the injection accumulator.