Abstract: An apparatus for facilitating removal and installation of mold insert members of a mold assembly from and into the clamp unit of an injection molding machine comprising a material distributing sub-assembly from which at least one material distributing nozzle projects, the apparatus comprises a two-part frame comprising an ejector part, an injection part being releasably connectable to the material distributing sub-assembly, and support pins spanning between the ejector part and the injection part when the injection part is separated from the material distributing sub-assembly, and guide elements projecting from the material distributing sub-assembly to engage a mold insert member received in the injection part and effective to align that mold insert member relative to the material distributing sub-assembly. The two-part frame comprises first clearance bores and second clearance bores allowing protrusion into the mold insert member of, respectively, the material distributing nozzles and the guide elements.

Abstract: Embodiments of the invention relate to injection mold components, assemblies, and molding system that include superhard materials. Such injection mold components, assemblies, and systems may decrease wear of certain injection mold components, which may result in improved productivity of the injection mold and molding systems that utilize such components.

Abstract: An apparatus for manufacturing a capsule by using vegetable gelatin is provided. Heating units are installed in a gelatin feeding line, which feeds gelatin in the form of a sheet, and a molding line to feed the gelatin in a predetermined temperature. The molded capsule is conveyed through a conveyer so that the molded capsule is stably dried and cured and a temperature of the conveyer is adjusted to control a temperature of the capsule. A length of the drying line is maximally increased within a narrow space, so that a film of the capsule made of the vegetable gelatin is gradually cured and dried without abrupt temperature variation, thereby preventing crack from occurring in the capsule, and preventing bonding parts of the capsule from being torn to improve the commercial value of the capsule.

Abstract: When a waveform monitor apparatus 1 of an injection molding machine M for monitoring an operation waveform at least during molding is configured by mounting the waveform monitor apparatus 1 on the injection molding machine M for performing molding according to a specific molding system, a parting opening detecting means Fp for detecting change data of a parting opening Lm to a time during molding, and an operation waveform displaying means Fd for displaying at least change data from a resin filling start is into a mold 2 to a cooling time termination to of the mold 2, detected by the parting opening detecting means Fp, on a waveform displaying portion 5 of a screen 4v on a display 4 attached to a molding machine controller 3 are provided.

Abstract: A hot runner apparatus includes a mold plate defining a pocket; a plurality of sub-manifolds; and a bridge manifold positioned in the pocket and between the sub-manifolds. The bridge manifold and the sub-manifolds are oriented in a common plane. The bridge manifold receives a melt from a melt source. Each of the sub-manifolds is coupled to the bridge manifold to receive the melt from the bridge manifold via a junction between an opening of a network of melt channels within the bridge manifold and an opening of a network of melt channels within each of the sub-manifolds. The sub-manifolds are urged against the bridge manifold to form a seal therebetween, when the bridge manifold and the sub-manifolds thermally expand urging the sub-manifolds against contact regions of a pair of opposing walls of the pocket. The respective opposing walls define a hollow region separated from the respective contact regions by a wall portion.

Abstract: A device for producing plastic moldings has an extruder and a molding tool arranged downstream of an extruder discharge opening. A screw is rotatably guided in the extruder and is axially displaceable to transfer liquid polymers, prepolymers or monomers present in the extruder into the molding tool. A nonreturn valve adjacent to a free end of the screw has a locking ring in contact with the inner circumferential wall of the extruder that includes a seal, which is applied to at least part of its outer circumference and which seals the locking ring against the circumferential wall of the extruder. The sealing material of the seal is selected from the group of the polymers, copolymers and polymer blends with a hardness lower than that of the circumferential wall of the extruder. A nonreturn valve and method of processing liquid prepolymers or monomers into plastic moldings is provided.

Abstract: Embodiments relate to injection mold assemblies that include superhard materials, such as polycrystalline diamond compacts (“PDCs”), and related injection mold presses, components, and methods. The superhard materials are positioned to define at least a portion of a mold cavity for injection molding. Superhard materials may be fully or partially encapsulated by a substrate and the superhard materials and substrate may be secured to the injection mold. Superhard materials may be formed or otherwise separated from a substrate and secured to the injection mold without support of a substrate. Superhard materials may also be attachable to an injection mold to define only a portion of a mold cavity. In an embodiment, an injection mold insert includes a superhard material for insertion into a generic cavity within an injection mold assembly.

Abstract: A hot-runner system (100), comprising: a manifold assembly (102), including: a manifold body (104) defining a melt channel (109, 110) being smooth-flowing, direction-changing and uninterrupted.

Abstract: A hold-down tooling package that maintains the dimensional integrity between the product manifold, shear and fill plate.

Abstract: The invention relates to a device (1) for producing hinged closures out of plastic. The device (1) has a prismatic central block (3) which can be rotated about a rotational axis (2), said block being arranged between a first and a second molding plate (4, 5). The first and the second molding plates (4, 5) are movable in relation to the central block (3) in a first direction, and in a closed position, form a plurality of cavities in the area of a first and a second parting plane. The device has a handling system (14) used to remove and transport the hinged closures onto a capping device (16) in accordance with their layout.

Abstract: The disclosure provides a golf ball mold that may produce a golf ball with a reduced gate defect. The golf ball mold may have a mold cavity having a mold chamber including a surface shaped as the inverse of a substantially hemispherical shape and a parting edge disposed along the perimeter of mold chamber. At least one gate may be disposed on the parting edge to provide a path for a cover material to be injected into the mold chamber. The gate may include a flat middle surface connected by a first side surface and a second side surface disposed opposite the first side surface. A round having a radius of curvature ranging from about 0.2 mm to about 0.5 mm may be disposed along a middle gate edge of middle surface and/or a side gate edge of one of the first side surface and the second side surface.

Abstract: A reference physical quantity and a current physical quantity are successively compared with each other in association with an elapsed time during which a moving part operates or an operating position of the moving part, and a deviation of the physical quantity is determined. An average of absolute values of the determined deviations of the physical quantities is calculated, and a threshold corresponding to the elapsed time during which the moving part operates or the operating position of the moving part is calculated such that the threshold increases as the calculated absolute value increases. Abnormality is detected if the calculated threshold is exceeded by the determined deviation of the physical quantity.

Abstract: A continuous rotary injection molding machine, comprising a continuous extrusion-type injection system having an injection nozzle arranged downwards; a plurality of first injection runners, arranged horizontally, the injection nozzle of the injection system is located at a junction of the plurality of first injection runners; heating members, arranged around the plurality of first injection runners; plural groups of molding molds, arranged under the first injection runners; a plurality of second injection runners, arranged between the first injection runners and the mold cavities; and a plurality of injection switches, arranged on either the first injection runners or the second injection runners.

Abstract: A molded article transfer device (150, 250) is described herein that is associated, in use, with an injection mold (100, 200). The molded article transfer device (150, 250) includes a transfer structure (151, 251) that defines, amongst other things, a first aperture (154A) that is structured to receive a first molded article (102A) from a first mold stack (106A, 206A) of the injection mold (100). The transfer structure (151, 251) also defines a first branch channel (156A) and a first trunk channel (158A) through which the first molded article (102A) is passable. The first branch channel (156A) connects the first aperture (154A) with the first trunk channel (158A) for passing, in use, the first molded article (102A) thereto, whereafter it passes through the first trunk channel (158A) towards an exit (164A) thereof.

Abstract: A mold devised for molding of footwear bottoms, composed of overlapping layers made with expandible reticulable polyolefin material, as well as for molding of other manufactures with monolithic structure composed of overlapping layers of expandible reticulable polyolefin materials.

Abstract: Injection molding system (20, 220, 320, 420) having hydraulic circuit (50, 250, 350, 450) for motivating hydraulic actuator (36, 38) comprising: pump motor (52); and digital displacement pump (54, 354A, 354B, 454A, 454B) having: piston assemblies (102A, 102B, 102C, 102D) actuatable by pump motor (52), piston assembly including: pair of inlet and outlets operable to be individually opened and closed at selective rate independently of actuation of each piston assembly; at least one hydraulic actuator (36, 38) operably coupled on each of rod side (64, 66) and cylinder side (58, 74) to first subset of the plurality of piston assemblies (102B, 102D) and second subset of the plurality of piston assemblies (102A, 102C), respectively.

Abstract: A movable unit in an injection molding machine is started to operate and the current physical quantity and the current time (or current position of the movable unit) are detected. The current physical quantity is stored as a reference physical quantity in association with the elapsed time of operation of the movable unit (or position of the movable unit). A deviation of the current physical quantity from the reference physical quantity is calculated and stored, a distribution index value is then calculated from the physical quantity deviations in the first to n-th cycles, and a threshold value is determined from the distribution index value. When the deviation exceeds the threshold value, alarm processing is performed.

Abstract: An injection mold includes a first mold base, a first mold core, a second mold base, a fastening member, a second mold core and at least one elastic member. The first mold core is fixed to the first mold base, and the fastening member is fixed to the second mold base. The second mold core is movably mounted on the second mold base for engaging with the first mold core to fabricate a workpiece. The at least one elastic member acts as a shock absorber between the fastening member and the second mold core.

Abstract: An injection molding apparatus includes an injecting device, a platform, a mold, and two heat insulation assemblies. The injecting device melts plastic and injects molten plastic into the mold. The platform loads and controls the mold and the injecting device. Each of the heat insulation assemblies includes a metallic plate and a pipe member. The pipe member is mounted in the metallic plate for receiving hot liquid to heat the metallic plate. The mold is sandwiched between two metallic plates of the two heat insulation assemblies. One of the metallic plates is mounted between the mold and the injecting device. The other metallic plate is mounted between the mold and the platform.

Abstract: A mold apparatus used in injection molding of liquid silicone composition. The mold apparatus is made of several components aiding in the overall process. The mold apparatus has two main sections, a cold section to prevent the liquid silicone from curing and a heated section for curing the liquid silicone. The two sections are separated by a thermal insulating plate. The metering of the flow is achieved by an actuator providing linear movement of a valve pin position in the center of the flow path of the runnerless nozzle resting against a gate orifice. The runnerless nozzle is keep cooled with an annular heat pipe surrounding the body of the runnerless nozzle and circulating a liquid coolant at one end of the runnerless nozzle. The cavity block receive heat from an heating element incorporated in the cavity back plate. Heat is evenly distributed in the cavity block by vaporization.