B29C45/28

Actuator with Eccentric Pin Drive
20200254668 · 2020-08-13 ·

An injection molding apparatus (5) comprising an electrically driven actuator (200) having a driven rotatable rotor drivably rotatably interconnected to an output shaft (12) or to an output rotation device (16, 430, 500) that is rotatably driven around an output rotation axis (12a, R3a) and a cam device or surface (600) that is eccentrically disposed or mounted off center a selected distance (ED) from the output rotation axis (12a, R3a) in an arrangement such that when the shaft (12) or rotation device (16, 430, 500) is rotatably driven, the cam member or surface (600) is eccentrically rotatably driven around the output rotation axis (12a, R3a).

Air freshener

An air freshener has a rigidifying core defining a central axis, and an outer portion or sleeve contacting the core that is formed from one or more fragrance loaded polymers. Together, the core and outer portion are shaped to surround a first axis perpendicular to the central axis. The air freshener is made by injection molding a first shot of at least one polymer material to form the core, and injection molding a second shot of at least one polymer material incorporating one or more fragrance materials over or onto or into at least a portion of the core. The second shot of polymer material may be stretched about the portion of the core during injection molding, and may flow into a first hole formed in the core at or near the core distal end, and fills a second hole formed in the core at or near the core proximal end.

Air freshener

An air freshener has a rigidifying core defining a central axis, and an outer portion or sleeve contacting the core that is formed from one or more fragrance loaded polymers. Together, the core and outer portion are shaped to surround a first axis perpendicular to the central axis. The air freshener is made by injection molding a first shot of at least one polymer material to form the core, and injection molding a second shot of at least one polymer material incorporating one or more fragrance materials over or onto or into at least a portion of the core. The second shot of polymer material may be stretched about the portion of the core during injection molding, and may flow into a first hole formed in the core at or near the core distal end, and fills a second hole formed in the core at or near the core proximal end.

Hot runner system for injection molding

An improved hot runner system is provided. The hot runner system includes a hot drop having an inlet for receiving molten material, the inlet diverging into first and second channels that converge at a feeder tube for providing an even distribution of molten material in a mold cavity. The hot runner system further includes a valve pin adapted to reciprocate within the feeder tube for opening and closing the valve gate, the valve pin being moveable in response to activation of first and second linear actuators disposed exterior to the hot drop. The linear actuators are moveable in unison with each other and are joined to the valve pin via a cross-bar that extends through an interior portion of the hot drop between the first and second channels.

CONTROLLER ARRANGEMENT FOR INJECTION MOLDING SYSTEM

An injection molding apparatus (10) comprising a signal converter (1500) interconnected to a machine controller (MC) of an injection molding machine (IMM) that generates standardized signals (VPS), the signal converter (1500) receiving and converting the standardized signals (VS) to a command signal (MOPCS, PDCVS) that is compatible with a signal receptor or interface of an electrically powered actuator (940e, 941e, 942e) or a signal receptor, interface or driver of a proportional directional control valve (V, V1, V2) that drives a fluid driven actuator (940p, 941p, 942p) to respectively operate the electrically powered actuator (940e, 941e, 942e) or the proportional directional control valve (V, V1, V2) to move in a direction that operates to either begin an injection cycle and to end an injection cycle.

Hot runner injection nozzle and drive train

The present disclosure is directed to an injection nozzle for an injection molding device comprising a drive train for at least one closure element arranged movable in a nozzle head in a first direction. The drive train comprises a cam mechanism with a cam head comprising a wedge and at least one side plate. The wedge and the side plate are together arranged moveable in a second direction. Per closure element the wedge comprises at least one first drive surface which interacts with a second drive surface arranged at the closure element at least during closing of the closure element. The at least one side plate comprises a third drive surface which interacts with a fourth drive surface arranged at the closure element at least during opening of the closure element.

Injection molding system
10688699 · 2020-06-23 · ·

An injection molding system is equipped with a mold having a plurality of cavities, an injection device for injecting a molding material, and a controller for controlling the injection device to mold a plurality of molded parts. The controller includes a determining unit for determining quality of the plurality of molded parts molded at the plurality of cavities. Further, the controller includes a control unit for failure for preventing, when a molded part is judged to be defective, injection to a cavity used for the molded part judged to be good.

Injection molding system
10688699 · 2020-06-23 · ·

An injection molding system is equipped with a mold having a plurality of cavities, an injection device for injecting a molding material, and a controller for controlling the injection device to mold a plurality of molded parts. The controller includes a determining unit for determining quality of the plurality of molded parts molded at the plurality of cavities. Further, the controller includes a control unit for failure for preventing, when a molded part is judged to be defective, injection to a cavity used for the molded part judged to be good.

SYSTEM FOR CONTROLLING A SHUTTER OF A PLASTICS INJECTION SYSTEM
20200180201 · 2020-06-11 · ·

The invention relates to a system for controlling a shutter arranged to slide in a plastic material injection nozzle, comprising: a hydraulic or pneumatic actuating cylinder (1) coupled to said shutter to make it slide between a shutting off position of the nozzle and a maximum opening position of the nozzle, a device (2) for controlling the actuating cylinder (1), comprising at least two elements among: an element adapted to regulate the stroke of the actuating cylinder to a first constant speed, an element adapted to regulate the stroke of the actuating cylinder to a second constant speed, greater than the first speed, an element adapted to selectively block the stroke of the actuating cylinder, a sequential control unit comprising at least two control paths (30, 31, 32) configured to send selectively an electrical control signal to the device (2) via one and/or the other of said control paths (30, 31, 32) such that: under the effect of a first signal sent via the first control path (30), one of the elements is activated, under the effect of a second signal sent via the second control path (31), another element is activated.

Molding die, molding die system, and compression molding method

In a molding die, movable die elements are respectively received in die element receiving holes formed in a frame plate. An end surface of the frame plate, which faces a cavity at a location that is other than locations of the die element receiving holes, forms a frame portion compression surface. An end surface of each movable die element, which faces the cavity, forms a split compression surface. Die element drive devices respectively drive the split compression surfaces of the movable die elements. A whole compression plate commonly supports an opposite end part of the frame plate and opposite end parts of the movable die elements, which are opposite from the cavity. When the whole compression plate is moved forward, the whole compression plate integrally drives the frame plate and the movable die elements forward. A whole drive device drives the whole compression plate.