Abstract: An injection molding machine having four tie bars extending through and between a movable platen and a fixed platen each of which carry a half of a mold. To enable the movable platen to withstand the forces which arise during a molding process, a pressure control mechanism including a piston in association with each tie bar is received within a corresponding recess provided in the movable platen and in order to grip the tie bars during the molding process a gripping mechanism is provided which is supported by the piston such that the gripping mechanism and the piston effectively form a single movable unit. The gripping mechanism comprises a pair of gripping jaws which are transversely movable and are moved by way of a rotatable disc which is also provided in the single movable unit.

Abstract: A tube take-up apparatus is provided to handle a length of freshly extruded tube. The apparatus includes an elongated housing in which a pair of parallel, spaced-apart rollers extend lengthwise in a position just below the extruded tubing. The housing is removably mounted on an elongated supporting fin which is secured to the extruder at its near end, extends upwardly between the two rollers and substantially along the entire length of the housing, and is, in turn, supported on a fixed pedestal at its remote end. After the full length of tubing has been extruded, the housing and rollers as a unit are lifted with the tube from the supporting fin and replaced by an empty housing, to extrude the next tube, while the full housing is carried away to a dryer.

Abstract: A barrel assembly and carriage assembly preferably having first complimentary couplers and second complimentary couplers. The first couplers interlock to secure the barrel assembly between the ends of the barrel assembly to a carriage assembly. The second couplers retain an end of the barrel assembly in the carriage assembly preventing rotation of the barrel assembly during operation.

Abstract: The invention relates to an injection molding machine having a plurality of modular drive groups which are arranged on the injection molding side and on the mold closure side. According to the invention, at least one of the drive groups is connected to the injection molding machine via at least one multifunction element which, as an interface, makes it possible to optionally connect different types of drives, e.g., electromechanical drives, hydraulic drives, pneumatic drives, linear motors or electromagnetic drives as a drive group in an otherwise unmodified injection molding machine. Independent of the respective drive, space for the respectively used drive groups is provided on the injection molding machine in order to accommodate each type of drive. As a result, the structural requirements for an increased modularity are accomplished by using components which, to a great extent, are identical.

Abstract: Discloses is an apparatus for injection molding permitting movement of the injection molding machine in multiple planes. The apparatus has a frame and an injection molding machine mounted within the frame. Located on both the frame and the injection molding machine are a plurality of interlocking rails and rail bearings. The movement of the rails in the rail bearings permits the injection molding machine to move relative to the frame. The frame is a two piece interlocking frame, the two pieces being capable of movement relative to each other.

Abstract: A holder integrated type base board made of synthetic resin integrally molded with a plurality of holders for inserting LEDs on a front face side of a base board main body and a mold therefore. The mold includes a first mold for molding a back face side of the base board main body and a second mold opposed to the first mold for molding the front face side of the base body main body. In addition, the mold includes a holder molding cavity provided at the second mold which is constituted by an insert die capable of being inserted into and detached from the second mold main body. When it is necessary to correct a position of a portion of the holder in a trially fabricated base board, a position of an LED inserting hole in the base board can simply be corrected by drawing the insert die for molding the holder from the mold main body and interchanging the insert die with a new insert die. As such, an entire first mold does not have to be reproduced.

Abstract: An improved method and apparatus for injection molding is shown which utilizes an injection molding or plasticizing unit in combination with a novel detachable clamping unit to provide a readily interchangeable clamping unit having easy access to both halves of the injection mold.

Abstract: Data defining an outline shape of a section, color-region image data and adhesion-region image data are generated, color toners are transferred onto a color region and an adhesion region on a sheet in accordance with the respective image data, the sheet is aligned on processed sheets and laminated thereon. Next, a laminated body of the sheets is bonded by heating and pressurizing, and the laminated and bonded sheets are cut along the sectional outline shape. Further, sectional shape data of a solid model are generated and a transparent toner is transferred as an adhesive onto the adhesion region of the sheet. Then, after aligning and laminating the sheet on the processed sheets, the transparent toner is melted to bond the sheets. Color toners are transferred onto the color region of the sheet and the sheet is cut along the outline shape. Furthermore, the color region is defined on a transparent sheet in accordance with the sectional shape of the solid model.

Abstract: A mold mounting plate for an injection molding machine for processing material, in particular plastic material, includes a main body having a plate-shaped central portion. Received in the main body are plural sleeves which define openings for support of column-like holding and/or guiding elements of the injection molding machine, and are secured to the central portion such as to establish a flexible bending/torsion joint. In this way, a transmission of moments onto the column-like holding and/or guiding elements as a result of a deformation of the mold mounting plate is minimized.

Abstract: A plastic trial lens having a grip portion gripped when the lens is set in trial frames for trial lenses, an injection molded product for making the trial lenses, and a mold assembly for molding the injection molded product are provided. In the injection molded product molded by means of the mold assembly in an injection compression molding machine, a grip portion and a liquid guided and collected area are molded simultaneously with a lens portion on a periphery of the lens portion. When the injection molded product is dipped into hard coat liquid, the hard coat liquid is guided in the liquid guided and collected area to drip down and the remaining liquid without dripping down is collected in the liquid guided and collected area, thereby forming a coating film of uniform thickness on the lens portion. The plastic trial lens which is integrally provided with the grip portion is finished after the liquid guided and collected area is removed.

Abstract: A barrel assembly preferably having a first barrel coupler and a second barrel coupler. The first barrel coupler secures the barrel to a carriage. The second barrel coupler retains an end of the barrel in the carriage preventing rotation of the barrel during operation. The barrel section between the first barrel coupler and an end of the barrel is isolated from axial carriage force in operation.

Abstract: An extruding machine for making multi-color mesh belts includes an injection block which has a single material feeding inlet and a material feeding tube which has a plurality of equally spaced material feeding passages. Each feeding passage has a color injection opening which engages with a color injection device. The formed mesh belts may have strips of different colors. The bottom end of the feeding tube may engage with a dividing block for controlling melting degree of the injecting color material.

Abstract: An extruder die head, preferably a blown film head, has an internal cylindrical mandrel and a cylindrical jacket, which envelops concentrically the mandrel. Between the mandrel and jacket an annular channel is formed that empties into a die slit. At least one melt-supplying line empties into the annular channel in the area opposite the die slit. To avoid slits between the central mandrel and the jacket, enveloping the mandrel, where the polymer melt can accumulate and deposit, the mandrel is made as one piece with a flange-like foot and is provided in the area, adjacent to the foot, with at least one borehole, which feeds in the melt. On the mandrel adjacent to the foot is shrunk a ring, which seals the slit between both the mandrel and jacket. The cylindrical jacket is mounted above and connected sealingly to the shrunk-on ring to form the annular channel.

Abstract: The invention relates broadly to injection molding machines and more particularly to a novel barrel assembly for use in an injection unit of an injection molding machine.

Abstract: The invention relates broadly to injection molding machines and more particularly to a novel carriage assembly for use in an injection unit of an injection molding machine.

Abstract: Broad parts are formed on at least one passage including a passage for forming the thinnest layer among passages for respective resin layers of a multilayer sheet at an upstream side of a confluence. In the broad parts, clearances become larger to both ends of the passage along the width thereof.

Abstract: A method for forming a composite extrusion is disclosed, wherein a continuous length is formed having a leading length and a trailing length, the leading length including the primary extrudate and a first appendage extrudate and the trailing length including the primary extrudate and a second appendage extrudate, wherein the first appendage extrudate and the second appendage extrudate are formed form corresponding interchangeable first and second insert dies. The continuous length of the composite extrusion includes (i) the leading length having the primary extrudate and the first appendage extrudate; (ii) a change over length having the primary extrudate; and (iii) the trailing length having the primary extrudate and the second appendage extrudate, wherein a plurality of individual weatherseals can be cut from the leading length, and a plurality of weatherseals can be cut from the trailing length.

Abstract: The flow regulation portion includes a diameter reducing portion, a cylinder portion and a diameter expanding portion arranged from an upstream side, wherein: (1) an inlet shape of the diameter reducing portion at a side of the biaxial screw portion is equal to an outlet shape of the biaxial screw portion; (2) an outlet shape of the diameter reducing portion at a side of the cylinder portion is equal to an inlet shape of the cylinder portion; (3) an inlet shape of the diameter expanding portion at a side of the cylinder portion is equal to an outlet shape of the cylinder portion; and (4) an outlet shape of the diameter expanding portion at a side of the foreign substance removal portion is equal to an inlet shape of the foreign substance removal portion. The flow regulation portion is formed by a cassette mechanism, thereby reducing a maintenance cost and a delivery date.

Abstract: The invention relates broadly to injection molding machines and more particularly to a novel combination of a barrel and carriage assembly for use in an injection unit of an injection molding machine.

Abstract: The present invention relates broadly to an injection molding machine and more particularly to a force isolating barrel and carriage assembly for use in an injection unit of an injection molding machine.

Abstract: An injection molding apparatus includes a fixed injection molding machine having a housing, a first injection molding unit and a mold associated therewith. A portable framework is removably attached to the platen and has at least a second injection molding unit operably aligned with the mold and cooperable with the first injection molding unit.

Abstract: A wax pattern mold and molding process are disclosed for forming a wax pattern of a hollow, thin walled object, in particular, a golf club head. A mold is provided in at least two halves defining a mold cavity. A core made up of a plurality of interfitted parts is placed in the mold to precisely define the thin walls. The core and mold are provided with a registration channel such that the core is properly registered in the cavity to ensure dimensional integrity of the thin walls. Pins, holes, slots, and fingers are provided to lock the core parts together while the wax pattern is formed and to permit the core parts to be disassembled through an opening in the mold without separating the mold halves.

Abstract: The invention provides a spinnerette assembly for forming hollow fibers. The spinnerette assembly contains an extrusion orifice and a fiber-forming material passage in communication with the extrusion orifice. A hollow needle extends through the extrusion orifice in a concentric manner to define an annular passage surrounding the needle. The fiber-forming material passage includes a fiber-forming material inlet port extending from a surface of the spinnerette assembly to an interior of the assembly and a transverse passage extending from the fiber-forming material port to the annular passage surrounding the needle. A bore forming fluid passage communicates with the interior of the needle.

Abstract: The invention provides a spinnerette assembly for forming multicomponenthollow fibers of the sheath/core type. The spinnerette assembly contains an extrusion orifice and a core forming material passage in communication with the extrusion orifice. A hollow needle extends through the extrusion orifice in a concentric manner to define an annular passage surrounding the needle. The core forming material passage includes a core forming material inlet port extending from a surface of the spinnerette assembly to an interior of the assembly and a transverse passage extending from the core forming material port to the annular passage surrounding the needle. A bore forming fluid passage communicates with the interior of the needle. The spinnerette assembly contains at least one sheath forming material passage also in communication with the extrusion orifice.

Abstract: The mold clamping device with improved transmission mechanism includes: a middle platen 2 fixedly supported by a support base 1 and carrying the lower metallic mold 6; and front tie-bars 3a extending slidably therethrough. A movable platen 4 carrying the upper metallic mold 7 is secured to the top ends of the front tie-bars 3a. The horizontal connecting bar members 5a and 5b connect the bottom ends of the front and the rear tie-bars 3a and 3b. The middle platen 2 and the horizontal connecting bar members 5a and 5b are operatively coupled by means of the pantograph mechanism consisting of flat bar-shaped links 15a and 15b, whose front and rear joints are pinned to annular links 16a and 16bengaging with a left-and-right-handed ball thread member 17 driven by a driving source.

Abstract: An extrusion apparatus which simplifies changing the relative order of layers of a coextruded laminate, is provided. Advantageously, the apparatus includes an interchangeably disposed, layer sequence selecting device which can be changed out without disassembly of other extrusion apparatus.

Abstract: Molds alterable in numbers for injecting molding machines includes core molds, a core mold supporter, injecting hole molds, an injecting hole mold supporter, a bottle mold having bottle mold holes supported on a bottle mold supporter. The core mold supporter, the injecting hole mold and the bottle mold all have the same plural number of the core mold holes, the injecting holes and the bottle mold holes, which may be all used or one or two of them only used according to the number of bottles to be produced so as to speed up production and not to change all the related components in case of producing different diameter bottles. In addition, the components to be changed are quite a few and changing process is simple to save time and labor by inserting or removing them out of the holes in the mold supporters.

Abstract: In a dividing apparatus A in which dough brought in through a hopper is extruded from an extruder 8 by a screw 71, dough is divided by cutting it into pieces of set length. The dividing apparatus A comprises a support plate provided for installation therein of a outlet member 1 of the extruder 8 and a cutter 9 for cutting off extruded dough D by sliding along the support plate 2. The outlet member 1 comprises a reducer 11 and a flange 12 formed such as to extend therefrom. The flange 12 is configured for ease of installation on, and removal from, the support plate 2.

Abstract: The composite brush mold includes a) a metallic component that includes a pattern of holes extending from a first surface of the metallic component to a second surface of the metallic component, the holes being configured to receive tufts that include at least one bristle, and b) a plastic component that includes a pattern of fingers that correspond to the pattern of holes, the fingers extending into the holes to form end walls.

Abstract: A mold-closing unit for an injection molding machine for processing plasticizable masses includes a support element for supporting a piston-cylinder unit for moving a mobile mold carrier and to support a pressure cylinder, and a hydraulic block to supply hydraulic lines inside the support element. The support element has at least two support sections which accommodate between them the hydraulic block and are connected to the hydraulic block via a fastener. Thus the mold-closing unit can be constructed more compactly, with shortening of the bores for the hydraulic lines.

Abstract: A single-blade fan apparatus includes a blade assembly having a hub presenting a longitudinal aperture adapted for receipt on the fan apparatus, a single blade protruding radially from the hub in a first direction, and a counterweight body protruding radially from the hub in a second direction opposite the first direction. The hub, blade and counterweight body are formed of a unitary piece of aluminum, zinc or synthetic resin material. A method of constructing the blade assembly includes providing a mold including a hub cavity, a blade cavity protruding from the hub cavity in a first direction, and a counterweight-body cavity protruding radially from the hub in a second direction opposite the first direction, and fitting a removable mold insert in the blade cavity. The first mold insert fills a portion of the blade cavity remote from the hub cavity.

Abstract: The invention discloses a marking device comprising: a head (8) to flush with the internal surface of a mold (6), the side (14) of the head facing inside the mold having a mark and means (16) for driving the head in rotation; a threaded cylindrical body (10) forming a single piece with the head (8) of the device; optionally a threaded socket (2) with an external diameter corresponding to the external diameter of the head (8) of the device and its internal screw thread corresponding to the threading of its body, such that when the body is screwed in the socket, the resulting assembly has a cylindrical circular shape.

Abstract: An extrusion die for forming a cellular honeycomb structure having a finned protrusion extending from at least one cell wall of the honeycomb structure. The extrusion die is a composite extrusion die that comprises a primary extrusion die body having an inlet face and an outlet face, and at least a first insert member that is secured into a first intersection formed by a pair of intersecting slots at the outlet face of the primary extrusion die body. More preferably, a plurality of insert members are secured into a plurality of intersections, each intersection being formed by a pair of intersecting slots and each of the intersections being defined by four pegs/pins at the outlet face of the primary extrusion die body.

Abstract: A guide block assembly is provided for retaining fiber bore forming pins and guide pin bore forming pins in precise relation to each other during the molding of a ferrule used in a multi-fiber connection. The assembly may include a top portion and a bottom portion with corresponding fiber and guide pin bore grooves formed on a surface of the top and bottom portions. When the top and bottom portions are assembled, the corresponding fiber and guide pin bore grooves form fiber and guide pin bores, respectively. The assembly may also include another portion that form additional bores with either the top or the bottom portion.

Abstract: A self-compensating support skate (46) for an annular hydraulic ram (15) mounted in the front stationary platen (10) of a “two-platen” injection molding machine (1) is disclosed. The hydraulic ram (15) fits into a central bore (22) in the stationary platen (10) and connects directly to a relatively thin die platen (11) that provides a mold mounting surface. The purpose of the skate (46) is to prevent movement (tilting) of the die platen (11) and the resulting misalignment with the movable platen (20) when the mold (30) is attached. The skate (46) is adjusted during assembly to compensate for the tolerance stack-up in the ram assembly. The “zero” clearance is maintained by disc springs (56) within the skate (46) that compensate for the expansions and contractions of the large diameter parts due to temperature variations. The die platen (11) is held in the aligned position by contact with the lower tie rods (7).

Abstract: A generic mold base for an injection molding machine to permit the production of multiple parts from the same mold base. The mold base has mold insert receiving sections in which the mold insert sections are removably mounted. The mold insert sections are held in position by tapered wedges. Multiple sprue openings are provided in the upper mold base section to accommodate different mold insert designs. Accessability openings are provided in each mold base section to accommodate different water passage designs of different mold inserts.

Abstract: A process and apparatus for producing polyurethane foam, comprising bringing together under pressure one or more foam components and a gaseous CO2 auxiliary blowing agent and discharging the combination through a permeable discharge head in the form of plural individual wire meshes sintered together to form at least one composite element having a structure such as to require repeated division, divergence and convergence of flow paths and impingement of the individual flows with the sintered wire mesh and the flows through adjacent pores in three dimensions within its axial thickness, and at which the pressure is reduced for forming a froth, wherein the combination of the foam components and gaseous CO2 is arranged to be in a non-homogeneous state containing gas bubbles prior to passage through the discharge head.

Abstract: A molding die for molding a magnetic tape cartridge case in which an electronic part for exchanging a signal with the outside via contacts is incorporated as the need arises is such that a molding die portion for use in molding openings for exposing the contacts of the electronic part is constituted of two kinds of inserts which are alternatively attachable to the molding die proper; and a first insert is used to form openings for exposing the contacts, whereas a second insert is used to shut the openings for exposing the contacts.

Abstract: A vertical adjustment device for a mold closing unit of a hot chamber die-casting machine is provided with a shear mechanism. An electrical servomotor is provided as a drive assembly for spreading the shear mechanism apart, with the axis of the servomotor being parallel to the guide surface for the shear mechanism and driving, through an angle transmission, a spindle oriented at less than 90° with respect to the drive axis of the servomotor. One end of each of the two lever pairs of the shear mechanism is connected pivotably with the closing unit or with the machine frame. The other ends are supported on the guide surface and the machine frame and on a guide surface of the closing unit.

Abstract: A clay molding device comprises a clay pressing-out tool, which presses filled-up clay out through an opening, and a mold installed as covering the opening of the clay molding device to be attached and detached freely, in which clay is pressed through the opening of the clay pressing-out tool. A hole and/or a notch is formed in the mold, and a portion of the pressed-in clay can be protruded and shaped by the hole and/or the notch. The mold is united with the clay pressed in the inside and the clay protruded and shaped by the hole and/or the notch, and is able to form a portion of the appearance of a clay molded figure.

Abstract: Apparatus to produce pasta used in particular, but not exclusively, in the domestic field, comprising a box-like structure (11), a mixing assembly (12) and an extrusion assembly (13), the mixing assembly (12) comprising a receptacle (16) inside which a mixing organ (18) is commanded to rotate and the extrusion assembly comprising at least a feeding screw (32) and an interchangeable extruder (31), the mixing assembly (12) and the extrusion assembly (13) being assembled in a removable manner on the box-like structure (11), the mixing assembly (12) being equipped with an outlet aperture (26) suitable to couple in an air-tight manner with an inlet aperture (28) of the extrusion assembly (13).

Abstract: An apparatus for calibrating hollow chamber sheet extruded lines out of thermoplastic resin includes a vacuum housing and a planar intake area at a first end of the vacuum housing. The planar intake area is configured to receive the extruded line. Support rollers within the vacuum housing are configured to support the extruded line. The extruded line exits the vacuum housing through a planar outlet area located at a second end of the vacuum housing opposite the first end.

Abstract: A motor drive apparatus for an injection molding machine includes a servo amplifier connected to a servomotor; a controller connected to the servo amplifier; and an interface unit for selectively connecting the controller to one of a plurality of different servo amplifiers. When the servomotor is to be replaced with another, different servomotor, the interface unit can cope with the replacement. Specifically, an interface printed circuit board corresponding to a servo amplifier for the replacement servomotor is selected from among a plurality of interface printed circuit boards which constitute the interface unit.

Abstract: An extrusion apparatus including a flex lip and a reciprocally movable actuator bar for adjusting the lip gap, is disclosed. Axial movement of the actuator bar advantageously results in control across the full width of the lip gap. In one aspect of the invention, a handwheel or motor is positioned opposite the output end of the extrusion apparatus. In another aspect of the invention, a rotatable shaft of a control assembly is beneficially disposed generally perpendicular to direction of movement of the actuator bar, and advantageously a portion of the shaft is received within an endplate of the extrusion apparatus. In a variation, a control assembly simultaneously exerts a pulling force on one end of the actuator bar and a pushing force on the opposite end of the actuator bar.

Abstract: A universal mountable and demountable rack-and-pinion structure for a stack mold includes mounting plates affixed to the mold parts and rack-and-pinion mounting elements which are mountable to and demountable from the mounting plates. This arrangement permits the rack and pinion elements first to be mounted in an approximately correct position for the appropriate proportionation of movement within a molding machine. The device includes an adjustment feature which permits the relative distances between the mold parts to be finely adjusted to ensure correct proportionation of movement. The rack-and-pinion structure is interchangeable for various stack molds.

Abstract: A process and apparatus for producing a polymeric foam, wherein foam components are brought together under pressure and are passed through a permeable discharge head where the pressure is reduced. The permeable discharge head comprises a diffuser element having a structure such as to require division, divergence and convergence of flow paths in three dimensions within its axial thickness, considered in the direction of flow therethrough. The diffuser element comprises plural individual woven wire meshes sintered together to form a composite element. The invention also provides the diffuser element.

Abstract: A flow nozzle designed to convey plastic melt from the injection unit of a molding machine to a mold cavity. The flow nozzle includes a nozzle body having a central plastic melt passageway, with a recess at an outermost end to receive a tip member. Positioned around the tip member and the recess of the nozzle body is a seal member made from a deformable material. A compression cap is threadedly carried on the outermost end of the nozzle body and is tightened on the nozzle body to force the seal member against the tip member and the nozzle body recess to provide a seal therebetween.

Abstract: A molding die for molding a magnetic tape cartridge case in which an electronic part for exchanging a signal with the outside via contacts is incorporated as the need arises is such that a molding die portion for use in molding openings for exposing the contacts of the electronic part is constituted of two kinds of inserts which are alternatively attachable to the molding die proper; and a first insert is used to form openings for exposing the contacts, whereas a second insert is used to shut the openings for exposing the contacts.

Abstract: The invention relates to an extrusion die for the manufacture of monolithic adsorption tubes having a solid body portion with a multiplicity of tunnels for the passage of gas. The die comprises a multiplicity of rods positioned within an outer cylindrical housing and oriented parallel thereto. The rods are supported near the entrance end of the housing, by at least two sets of ribs, each set of ribs arranged in a geometric pattern and oriented perpendicular to the cylindrical housing. The rods provide the form for tunnels in the extruded monolithic adsorption tube.

Abstract: An injection molding press apparatus for use with a variety of different interchangeable molding tools that allows the simultaneous molding of different parts. The interchangeable molding tools are custom designed to form a desired part. Each interchangeable molding tool allows for the easy replacement of different types of molding tools for the molding of different parts without the need of an entire mold replacement. A preferred embodiment of the invention comprises a baffle sorting system for injection molding machines thereby increasing the allowing the simultaneously molded different parts to be ejected from the machine without the need of separating the different parts. This increases the speed of each production run.