Abstract: An apparatus (10) for holding lens holders includes a first board (14) and a second board (16). The first board includes a plurality of through slots (146) defined therein. The second board includes a base portion (160) and a plurality of elongated protrusions (162) for insertion in and sliding in the respective slots. The protrusions extend from the base portion. The first board and the second board are attached to each other with the protrusions inserted in the slots. The first board and the second board cooperatively form a plurality of receptacles between the first inner surfaces in the slots and the first surface of the protrusions. A platform (12) with one of the first board and the second board are secured thereon. A driving device (20) is configured for driving the other one of the first board and the second board to move relative to the one secured on the table to change a size of the receptacles.

Abstract: A cutting machine is configured for cutting an injection molded original product. The injection molded original product has a component and stub bar connected to the component. The cutting machine includes a base portion, a supporting arm attached to the base portion, and a cutting device coupled to the supporting arm. The cutting device includes an electrothermal cutting line for cutting the component off the stub bar.

Abstract: A molding apparatus includes a first mold half, a first mold core, a second mold half, a second mold core and a plurality of spacers. The first mold core is received in the first mold half and has a first molding surface. The second mold half includes a receiving cavity defined therein and a plurality of parallel grooves angularly equidistantly spaced from each other. The second mold core is received in the receiving cavity and has a second molding surface facing the first molding surface. The first and second molding surfaces are configured for cooperatively defining a molding cavity therebetween. The spacers are configured for being selectively disposed in the corresponding grooves. Each spacer is configured for being sandwiched between the second mold half and the second mold core. The spacers are configured for aligning the second molding surface with the first molding surface.

Abstract: A mold includes a plurality of inserts, a molding board, a base board, a plurality of fastening members, and a plurality of washers. The inserts each has a molding surface. The molding board includes a plurality of cavities for accommodating of the respective inserts. The base board for mounting the molding board thereto has a plurality of receiving holes. The fastening members are respectively received in the corresponding receiving holes for securing the corresponding inserts in the corresponding cavities of the molding board. The washers are sandwiched between the respective fastening members and an opposite ends of the inserts to the molding surfaces.

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 molding apparatus includes a first mold half, a first mold core received in the first mold half, a second mold half opposite to the first mold half, a second mold core and a plurality of spacers. The second mold core includes a sleeve and a core insert. The sleeve is received in the second mold core. The sleeve includes a receiving hole defined therein, and a plurality of parallel grooves defined in an inner surface in the receiving hole. The grooves are angularly equidistantly spaced from each other. The core insert is received in the receiving hole of the sleeve. The plurality of spacers is configured for being selectively disposed in the corresponding grooves. Each of the spacers is configured for being sandwiched between the sleeve and the core insert.

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 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: 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: An injection molding device with an ejection mechanism includes a cover, an ejector pin, a housing movably sleeving the ejector pin, and an elastic part placed over the ejector pin. The housing defines a through hole. One end of the ejector pin is fixed to the cover. Two opposite ends of the elastic part resist the cover and the housing respectively. A flange is defined in one end of the ejector pin opposite to the end fixed to the cover, and is configured for covering the through hole. The ejector pin is guided by the through hole to move away from the housing to drive the flange to push a finished product. The elastic part is configured for driving the flange to cover the through hole.

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: An injection mold is disclosed. The injection mold includes a female die, a male die and an ejection device die slidably passing through the male die for ejecting molded product out of the mold. The female die includes a female die body and a female die core received therein. The male die includes a male die body and a male die core slidably received therein. The female die core and the male die core configured for cooperatively defining a molding cavity for forming a product. The ejection device includes a first ejection rod and a second ejection rod slidably connected to the first ejection rod. A first distal end of the first ejection rod is connected to the male die core. When molding product, an end of the second ejection rod distal from the first ejection rod is configured to be fixed relative to the male die.

Abstract: An exemplar dimension measuring apparatus includes a objective, a stage for fixing a workpiece, a projecting member located between the objective and the stage, a light source under the stage, configured for illuminating the workpiece such that a projection of the workpiece is formed on the projection member, an eyepiece coupled with the objective, and a processing unit. The eyepiece has a reticle, configured for viewing opposite extremities of the projection and facilitating alignment of the reticle with each of the extremities of the projection. The processing unit is configured for storing X-coordinates of the extremities of the projection on a Cartesian coordinate system, and calculating a difference between X-coordinates of the opposite extremities of the projection.

Abstract: A mold includes a first mold half, a second mold half opposite to the first mold half, and a thermoelectric generator. The thermoelectric generator includes a high temperature conductive portion, a semiconductor electricity-generating portion, and a low temperature conductive portion. The high temperature conductive portion is positioned in contact with the first mold half and configured to conduct heat from the first mold half to the semiconductor electricity-generating portion. The low temperature conductive portion is exposed to the air. The semiconductor electricity-generating portion is sandwiched between the high temperature conductive portion and the low temperature conductive portion, and positioned in contact with the high temperature conductive portion and the low temperature conductive portion; the semiconductor electricity-generating portion is configured for forming a voltage difference.

Abstract: A clamp assembly includes a base, a clamp, a cutting blade, and a connecting shaft. The clamp includes a first claw pivotably connected to the base via a first rotating shaft, and a second claw movable relative to the first claw and pivotably connected to the base via a second rotating shaft. The cutting blade is coupled to an end of the second rotating shaft away from the clamp. The connecting shaft has one end fixed to the second claw and the other end fixed to the cutting blade for making the cutting blade capable of rotating along the second rotating shaft together with the second claw.

Abstract: A clamping device for frozen material comprises a clamping member comprising a clamper for clamping frozen materials. A driving component is configured for driving the clamper to splay or fold. A cutting member connecting to the clamper and comprises two driven arms cooperating with the clamper.

Abstract: An exemplary optical lens group includes a first lens and a second lens. The first lens comprises a first central portion and an annular stepped portion. The annular stepped portion has a first outer step and a second outer step. The first outer step has a first outer side surface and a first downward-facing step surface. The second outer step has a second outer side surface and a second downward-facing step surface. The second lens comprises a second central portion and a peripheral portion. The peripheral portion has an inner side surface. The first lens is engaged in the second lens in a manner that the first outer side surface of the first lens is in contact with the inner side surface of the second lens. The second outer side surface of the first lens is spaced apart from the inner side surface of the second lens.

Abstract: An illuminating apparatus includes a lamp shade, a light source and a plurality of light shelters. The lamp shade includes a tubular sidewall, a receiving space and an opening. The light source is received in the receiving space. The plurality of light shelters is mechanically pivoted on the tubular sidewall. The plurality of light shelters is capable of being respectively and selectively rotated to cover the opening, thereby sheltering light passing through the opening.

Abstract: An apparatus for injection molding is provided. The apparatus includes an injection unit and a mold unit. The injection unit includes a nozzle having a first flat end surface. The mold unit includes a sprue bushing for communicating with the nozzle. The sprue busing has a second flat end surface. The sprue bushing is in contact with the first flat end surface of the nozzle. Wherein a protrusion is formed on one of the first flat end surface of the nozzle and the second flat end surface of the sprue bushing, and a corresponding recess is defined on the other of the first flat end surface of the nozzle and the second flat end surface of the sprue bushing. The protrusion is engaged in the recess.

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.