Abstract: An exemplary feed copper, configured for introducing plastic granules into a heating cylinder of an injection molding machine, includes a feed duct, a guiding duct communicated with the feed duct, and a sleeve. The sleeve movably wraps around the guiding duct, and have a lateral through hole for conforming with the lateral opening, such that the plastic granules can be accessible via the guiding duct when the lateral through hole is aligned with the lateral opening.

Abstract: A feeding system includes a hopper for containing materials therein, a dispensing pipe, a sensor, a scraper, a driving mechanism. The dispensing pipe is connected to the hopper and is configured for dispensing the materials in the hopper to a predetermined position. The sensor is arranged adjacent to the dispensing pipe and is configured for detecting an amount of the materials loaded in the dispensing pipe. The scraper is arranged in the dispensing pipe and is configured for removing the materials remained on the inner wall of the dispensing pipe by scraping the inner wall of the dispensing pipe. The driving mechanism is configured for driving the scraper to rotate in the dispensing pipe and scrape along the inner wall of the dispensing pipe.

Abstract: A lens includes a central optically active part, and a peripheral optically inactive part surrounding the optically active part. The optically inactive part includes a first surface, an opposite second surface, and a side surface connected between the first surface and the second surface. The side surface includes a first support area, a glue guide area, and a second support area in the order written. The glue guide area has a first groove defined therein. The first groove extends from a first side of the glue guide area adjacent to the first support area to an opposite second side of the glue guide area next to the second support area.

Abstract: A mold comprising a core plate receiving a core insert, a cavity plate receiving a cavity insert and an ejection mechanism configured to eject the core insert is disclosed. The core insert defines a first molding surface and the cavity insert defines a second molding surface cooperating with the first molding surface. The ejection mechanism comprises a top plate, a bottom plate, an ejection rod and a gasket. The ejection rod includes a first end in contact with the core insert in the core plate and an opposing second end fixed with the top plate, the bottom plate and the gasket by the fastener and the locating piece. The top plate drives the ejection rod to eject the core insert.

Abstract: A fixing device includes a stationary frame and a number of elongated resilient tabs. The stationary frame defines a central axis and includes four sidewalls for receiving a number of magnets. Each sidewall includes a receiving hole and at least one protrusion formed on each sidewall at a lower portion thereof. A slot is defined in each protrusion. The tabs correspond to the magnets. Each tab includes an engagement portion, an angled portion, and a contact portion. The angled portion is interconnected between the engagement portion and the contact portion. The engagement portions engage in the respective slots. The contact portions resiliently abut against the corresponding magnets. Each tab is configured to apply a force on the corresponding magnet in a direction toward the central axis.

Abstract: A positioning assembly using a pair of rollers elastically connected to a holding base for clamping two cutters received in the holding base. The cutters in the holding base can be adjusted to make different blades contact and align precisely.

Abstract: A grasping device for grasping a lens runner system is disclosed. The grasping device includes a support having a connecting rod, four claws arranged around the connecting rod, a driving sleeve, and an actuator. Each claw includes a first end and a second end opposite to the first end and tapers from the second end to the first end. The first end is elastically connected to the connection rod. Each two adjacent claws define a gap for receiving the lens runner system. The driving sleeve sleeves into the claws from the first end. The actuator is supported by the support and configured for driving the driving sleeve to move relative to the second end.

Abstract: A barrel includes a supporting part at one end of the barrel adjacent to an image side, and a plurality of protrusions formed on an inner surface of the barrel. Each protrusion includes a guiding surface and an engaging surface connected with the guiding surface. Each guiding surface is oblique relative to a central axis of the barrel. A distance between the central axis and a portion of the guiding surface adjacent to the image side is larger than that between the central axis and another portion of the guiding surface next to an object side. The engaging surface and the supporting part cooperatively clamp optical components in the barrel.

Abstract: A voice coil motor includes a stationary member and a moveable member. The stationary member defines a central axis. The stationary member includes a first receiving room, four sidewalls surrounding the first receiving room and four guide rails formed on the respective sidewalls and located in the receiving room. The moveable member is received in the stationary frame. The moveable member includes a moveable frame. The moveable frame includes four side surfaces. A plurality of restricting posts extend from each side surface and are aligned in a line parallel to the corresponding guide rail. The restricting posts slidably engage in the corresponding guide rails.

Abstract: A multi-cavity mold includes a female die and a male die for molding products with the female die. The female die core includes a female die body and a number of female die cores received in the female die body. The male die consists of a male die body, a number of male die cores each corresponding to one female die core received in the male die body, and an ejection member. The male die body consists of a first plate, a second plate connected to the first plate, and a plurality of restricting plates corresponding to the plurality of male die cores. The first plate defining a number of male die cavities each receive a corresponding male die core therein. The restricting plates are fixed onto the first plate and configured to restrict the male die cores in the corresponding male die cavities.

Abstract: An exemplary mold includes a core plate receiving a core insert, a cavity plate receiving a cavity insert, and an ejection mechanism for ejecting the core insert. The core insert defines a first molding surface, and the cavity insert defines a second molding surface cooperating with the first molding surface. The ejection mechanism includes a top plate, a bottom plate, and an ejection member fixed to the top plate. The ejection member includes an ejection rod and an ejection head. The ejection rod includes a first rod, and a first engaging body forming a protrusion facing toward the first rod. The ejection head includes a second rod, a second engaging body defining a recess facing toward the second rod, and an ejection portion engaged with the core insert. The protrusion is movably engaged in the recess, so that if the ejection rod goes off-axis, the core insert can stay on-axis.

Abstract: A lens holder for receiving a lens barrel includes a base portion and a barrel portion. The base portion defines a first circular chamber and a second chamber communicating with the first chamber. The first chamber has a diameter equal to an outer diameter of the lens barrel. The second chamber receives an image sensor. The barrel portion extends coaxially from the base portion. The sidewall of the barrel portion defines a number of through slots extending along a direction parallel to the central axis of the barrel portion.

Abstract: A camera module includes a circuit board, an image sensor, a barrel, a lens holder, a base board, and a number of clamping elements. The circuit board has a mounting surface. The image sensor is mounted on the mounting surface of the circuit board and includes an image plane. The barrel has two lens received therein. The lens holder is coupled to the barrel and receives the image sensor. The base board is arranged around the lens holder, and the base board is attached to the lens holder and attached on the mounting surface of the circuit board. The clamping elements clamp the base board on the circuit board, such that an optical axis of the barrel is maintained substantially coaxially aligned with a normal of the image plane.

Abstract: A mold comprises a core plate receiving a core insert, a cavity plate receiving a cavity insert and an ejection mechanism configured to eject the core insert. The core insert defines a first molding surface and the cavity insert defines a second molding surface cooperating with the first molding surface. The ejection mechanism includes a top plate; a sleeve fastening to the core plate and an ejection member to eject the core. The ejection member including an ejection rod and an ejection head slidably received in the sleeve. The ejection rod includes a main rod fastened to the top plate, a connecting body, and an engaging body. The ejection head includes an ejection portion and an engaging portion defining an engaging hole, a slot, and an opening, wherein the connecting body extends through the slot causing the engaging body to engage with the engaging hole.

Abstract: A voice coil motor includes a stationary member and a moveable member. The stationary member defines a central axis. The stationary member includes a first receiving room, four sidewalls surrounding the first receiving room and four guide rails formed on the respective sidewalls and located in the receiving room. The moveable member is received in the stationary frame. The moveable member includes a moveable frame. The moveable frame includes four side surfaces. A plurality of restricting posts extend from each side surface and are aligned in a line parallel to the corresponding guide rail. The restricting posts slidably engage in the corresponding guide rails.

Abstract: A voice coil motor includes a movable barrel and a spring plate. The movable barrel includes a top end and a number of locating members. Each locating member includes a locating post on the top end, and a blocking portion on the locating post. The spring plate includes a top surface, a bottom surface, and an inner frame. The spring plate defines a through hole passing through the top surface and the bottom surface. The inner frame surrounds the through hole. The inner frame defines a number of locating holes. Each locating hole receives a corresponding locating post. The spring plate is positioned between the blocking portions and the top end. The blocking portions lock the inner frame to the movable barrel. The inner surface of each locating hole defines spaced gaps. Each gap passes through the top and the bottom surfaces.

Abstract: A camera module includes a circuit board, an image sensor, a barrel, a lens holder, a base board, and a number of clamping elements. The circuit board has a mounting surface. The image sensor is mounted on the mounting surface of the circuit board and includes an image plane. The barrel has two lens received therein. The lens holder is coupled to the barrel and receives the image sensor. The base board is arranged around the lens holder, and the base board is attached to the lens holder and attached on the mounting surface of the circuit board. The clamping elements clamp the base board on the circuit board, such that an optical axis of the barrel is maintained substantially coaxially aligned with a normal of the image plane.

Abstract: A fixing device includes a stationary frame and a number of elongated resilient tabs. The stationary frame defines a central axis and includes four sidewalls for receiving a number of magnets. Each sidewall includes a receiving hole and at least one protrusion formed on each sidewall at a lower portion thereof. A slot is defined in each protrusion. The tabs correspond to the magnets. Each tab includes an engagement portion, an angled portion, and a contact portion. The angled portion is interconnected between the engagement portion and the contact portion. The engagement portions engage in the respective slots. The contact portions resiliently abut against the corresponding magnets. Each tab is configured to apply a force on the corresponding magnet in a direction toward the central axis.

Abstract: A lens holder for receiving a lens barrel includes a base portion and a barrel portion. The base portion defines a first circular chamber and a second chamber communicating with the first chamber. The first chamber has a diameter equal to an outer diameter of the lens barrel. The second chamber receives an image sensor. The barrel portion extends coaxially from the base portion. The sidewall of the barrel portion defines a number of through slots extending along a direction parallel to the central axis of the barrel portion.

Abstract: A removing device includes a fixture, an extendable and retractable arm, a heating rod, and a rotatable head. The fixture includes a top surface, a bottom surface, and a hole extending from the top surface to the bottom surface. The arm is threadedly engaged in the hole. The heating rod is coupled to an end of the arm. The heating rod includes a first portion inserted in the hole and coupled to the arm, and a second portion protruding from the bottom surface. The heater heats the heating rod. The rotatable head is rotatable relative to the fixture to move the heating rod between an extended position and a retracted position. In the extended position, the second portion heats the base material of the broken portion of a runner system. In a retracted position, the broken portion of the lens runner system is moved away from the injection mold.