There is provided a resin molded component that is injection molded, the resin molded component including an outer surface portion on which a gate mark is formed, and an inner surface portion that is on a side opposite to the outer surface portion and has a fracture mark of resin formed.

A parts fabrication apparatus has a staging fixture that is configured to position at least a portion of a molded plastic assembly that has a connective runner portion with at least one molded part extended from the connective runner portion by a severable gate portion. A laser source is energizable to direct toward the severable gate portion, from a laser output aperture positioned beneath the staged plastic assembly, a coherent light beam having sufficient energy for melting the gate portion and releasing the molded part along a drop path. A support is disposed to deflect the drop path of at least a portion of the released molded part in a direction away from the coherent light beam.

The disclosed embodiments include a system, apparatus and method for forming an ophthalmic lens having reduced risk of optical defects. An illustrative injection molding system includes a heated sprue and a hot runner fluidly coupled to the heated sprue. The system also includes a mold fluidly coupled to the heated runner to receive a molten material. The mold includes a material conduit, which may be included in an interchangeable gate insert, and a lens cavity. The hot runner forms a material conduit having an inlet for receiving material from the hot runner and an outlet for delivering material to the lens cavity. The material conduit also includes a branch cavity disposed between the inlet and the outlet for receiving a diverted volume of degraded lens material.

A parts fabrication apparatus has a staging fixture that is configured to position at least a portion of a molded plastic assembly that has a connective runner portion with at least one molded part extended from the connective runner portion by a severable gate portion. A laser source is energizable to direct toward the severable gate portion, from a laser output aperture positioned beneath the staged plastic assembly, a coherent light beam having sufficient energy for melting the gate portion and releasing the molded part along a drop path. A support is disposed to deflect the drop path of at least a portion of the released molded part in a direction away from the coherent light beam.

A protective cover (1) having a reliable sensor holder part (3B) that prevents reduction in air tightness and strength of a division wall (B) between a magnetic sensor (A) and a magnetic encoder (16). The protective cover (1) is press-fitted into an outer ring to seal one axial end portion of a bearing, and has the sensor holder part (3B) holding the magnetic sensor (A). In the protective cover (1), a disc-shaped member (3) has a thick part (6) formed as a flow path for preferentially charging a molten resin into a thin part for forming the division wall (B) in a cavity of a molding die for use in injection molding between a position corresponding to a gate of the molding die and the division wall (B).

The disclosed embodiments include a system, apparatus and method for forming an ophthalmic lens having reduced risk of optical defects. An illustrative injection molding system includes a heated sprue and a hot runner fluidly coupled to the heated sprue. The system also includes a mold fluidly coupled to the heated runner to receive a molten material. The mold includes a material conduit, which may be included in an interchangeable gate insert, and a lens cavity. The hot runner forms a material conduit having an inlet for receiving material from the hot runner and an outlet for delivering material to the lens cavity. The material conduit also includes a branch cavity disposed between the inlet and the outlet for receiving a diverted volume of degraded lens material.

This invention relates generally to an apparatus for casting a portion of a tire or other article of manufacture, and, more specifically, to an apparatus that has a gate design, that has a plunging nozzle with a waste reservoir for separating off-ratio material before it enters the cavity that forms a portion of the tire or other article of manufacture. The design may further include a passage that connects the runner to the waste reservoir as-well as an air vent that allows trapped gas or air to exit the waste reservoir as it fills with waste material, a valve that is operative!'/associated with the passage for closing and opening the passage at appropriate times, and a nozzle constructed from two independently translating components for initially introducing material into the waste reservoir and subsequently into the runner.

This invention relates generally to an apparatus for casting a portion of a tire or other article of manufacture, and, more specifically, to an apparatus that has a gate design that has a circular runner and concentric channel or waste reservoir for separating off-ratio material before it enters the cavity that forms a portion of the fire or oilier article of manufacture. The design may further include a passage that connects the runner to the waste reservoir as well as an air vent that allows trapped gas or air to exit the waste reservoir as it fills with waste material, a valve that Is operative!) associated with the passage for closing and opening the passage at appropriate times, and a nozzle for initially introducing material into the waste reservoir and subsequently into runner.

An injection molding apparatus includes an injector that obtains molten resin by melting resin, and injects the molten resin, a hot runner that is a flowing path of the molten resin, and a temperature rising part that is provided in a part of the hot runner, and increases a temperature of the molten resin to be higher than a melting temperature in the injector.

The present invention is intended to provide a protective cover having a reliable sensor holder part that prevents reduction in air tightness and strength of a division wall between a magnetic sensor and a magnetic encoder.

A protective cover 1 is press-fitted into an outer ring to seal one axial end portion of a bearing, and has a sensor holder part 3B holding a magnetic sensor A. In the protective cover 1, a disc-shaped member 3 has a thick part 6 as a flow path for preferentially charging a molten resin into a thin part for forming a division wall B in a cavity of a molding die for use in injection molding between a position corresponding to a gate of the molding die and the division wall B.