Abstract: A die head suitable for preparation of a dual textured pet food having a core and a shell surrounding or essentially surrounding the core, the die head attached to or an integral part of an extruder, which comprises a) at least two shell flow areas through which an extruded shell composition flows, b) a shell flow control regulator which is capable of impinging upon the shell flow, c) a core inlet tube located post shell flow control regulator, its orifice in the shell flow, and delivering core composition to the shell flow wherein the shell composition essentially or totally envelops the core composition d) the shell enveloped core composition exiting the die orifice.

Abstract: A low profile cable tie, preferably a two-piece cable tie, has a low profile locking head with a lateral strap accepting channel and a strap preferably molded with a right angle bend that is retained in this state during non-use. The cable tie has a clean exterior appearance, including a top surface free of openings and a smooth lateral opening. With this cable tie, a strap accepting channel is provided in the locking head that is substantially parallel to a strap attachment axis. The strap accepting channel divides the locking head into a first part, which is secured to the strap, and a second part which contains a locking device. By providing the locking device on the second part, the first part can be made thinner, allowing the strap accepting channel to be closer to the cable bundle being tied.

Abstract: An extrusion apparatus for extruding visco-elastic materials includes an extruder head for preliminary shaping of a visco-elastic melt and a splice bar die assembly for final shaping of the visco-elastic melt. Both the extruder head and the die assembly have flow channels that include low elongational flow zones where elongational flow is reduced and controlled, thereby reducing and controlling the resulting shrinkage of the extrudate. Extrudate shrinkage can also be reduced and controlled by controlling the die swell of the visco-elastic melt by rotating the roller at a selected roller speed less than the melt speed.

Abstract: An apparatus for forming an extruded ice cream bar with variegated inclusions. The apparatus includes a main die having a section with sidewalls extending between upper and lower end portions and defining a cavity. In the preferred embodiment, a plurality of intermediate dies for insertion of the inclusions are positioned within the cavity and spaced from the sidewalls of the main die. The intermediate dies gradually and progressively change in cross-sectional shape from being round at the top to the desired shape of the inclusion at the bottom. As the ice cream flows through the cavity of the main die, it passes along and about the intermediate dies through which the inclusions are flowing. Each intermediate die is preferably fed by two tubes so that the final shape of the inclusion at the bottom of the intermediate die is fully and evenly filed.

Abstract: A ground color main extruder 9 which supplies a ground color resin that is to cover a strand conductor 3 is disposed. Plural stripe sub extruders 21 and 31 which supply a colored resin in a strip-like manner in a longitudinal direction of the strand conductor 3 simultaneously with extrusion of the ground color resin are disposed. Insert molds 16 and 17 are multiply disposed. While alternatingly switching over the stripe sub extruders 21 and 31 each time when a colored resin to be supplied is changed, a colored resin of a predetermined color is supplied through a path which is disposed for each of the stripe sub extruders 21 and 31.

Abstract: A feedblock for supplying a multi-layer stream of polymeric material to an extrusion die is provided wherein the dimension of at least some of the layers of the multi-layer stream can be precisely adjusted and/or controlled. The feedblock includes a primary flow path which is used to create a first layer and two secondary flow paths which are used to create a set of second and third layers. The secondary flow paths are positioned relative to the primary flow path such that the second and third layers are deposited on opposing sides of the primary layer in a sandwich-like configuration. Each of the secondary flow paths include a contoured slot through which a secondary fluid stream of polymeric material is deposited onto a primary stream of polymeric fluid flowing in the primary flow path. The contoured slot is geometrically shaped such that adjusting the position of the contoured slot alters the shape of the secondary fluid stream as it is deposited onto the primary flow path.

Abstract: A three-phase center-filled gum or bubble gum candy lollipop product. An extruded gum or bubble gum material has a semi-liquid center-fill material added to it in a batch forming mechanism simultaneously with the formation of an exterior candy shell. The three-phase rope of material is formed into lollipop candy members in a forming machine and lollipop sticks are inserted into them. The formed lollipop products are then cooled, tumbled and prepared for further processing.

Abstract: An extruder die assembly and method for using same is disclosed which is designed for adaptation to a wide variety of commercial-grade extrusion devices common in the food industry. The extruder die assembly is inserted into an appropriate compartment within an extrusion device such that a first extrudate is directed down a coaxially aligned passageway within the forming section and combined with a fluid additive in the injection section whereupon the resulting food mass is compressed through a converging nozzle bore in the nozzle section to produce an extruded food product. The forming section and injection section are fabricated as a matching set.

Abstract: A nozzle for extruding an article has at least three layers of thermoplastic materials. A housing has a longitudinal axis. At least three extrusion dies are contained in the housing and aligned with the longitudinal axis. Each die has a face with a die channel in the face. Each die channel is a closed geometric figure. Each die channel has at least one inlet for receiving a respective thermoplastic material. Each die channel provides a respective outlet for feeding a respective one of the plurality of layers of thermoplastic materials to a respective flow channel within the housing. The flow channels deliver the plurality of layers so that at least three of the layers combine within the nozzle at substantially the same coordinate measured along the longitudinal axis.

Abstract: An apparatus for adding a coloring agent to a material used to manufacture brick includes an extrusion container having an opening defined in the sidewall thereof A coloring agent supply communicates with the opening for delivery of the coloring agent to the interior of the container as brick making material passes through the container. A storage device stores the coloring agent supply amount data corresponding to a supply amount for each of a plurality of brick types, each of the plurality of brick types having a different appearance. A controller is adapted to control a supply of a coloring agent from said coloring agent supply into said extrusion container in accordance with a selected brick type. A computer can be connected to the controller for data transfer. Accordingly, the computer can be used as an interface between a user and the apparatus.

Abstract: A toy includes a chamber having a longitudinal axis, a hollow interior, a first opening, and a second opening. The toy includes a die coupled to the first opening of the chamber, and an extruder received at the second opening of the chamber. A cavity is defined and bound by the interior of the chamber, the first opening, and the extruder. The extruder is positioned to advance longitudinally through the chamber relative to the die. Rotation of the extruder causes the chamber and formable compound received within the cavity to rotate relative to the die, and advancement of the extruder forces the rotating formable compound through the die.

Abstract: The invention concerns a device for homogenizing, mixing and/or granulating chemicals which consist of at least one component, particularly additives, by means of an extruder consisting of several housing segments, at least one worm, a nozzle arrangement and at least one cutting device.

Abstract: A device (10) for distributing expandable dough to plural holes (5A) is provided at a terminal end of a rotor (3) in an extruder to form plural expanded confectioneries, each of which has a rod-like configuration. A first member (20) with a through hole (22) at central portion thereof has plural and radial channels (24), and a second member (30) connected to the first member has a multi-faced pyramid-like projection (34) at a central portion of the inner wall therof. The inner wall has channels (36), each radially extending from a base of a face of the projection. The channels in the second member and the other channels in the first member are opposingly arranged in alignment to form diverging flow passages for the expandable dough. The second member has plural bores (32) arranged so as to form a concentric circle, and one each of each bore communicates with one end of the diverging flow passage while the other end is opened to form an expanding portion for the confectionery dough.

Abstract: A molding process and apparatus are disclosed herewith including extruding a polymer from at least one nozzle into a mold cavity, and displacing at least one of the nozzle and the mold cavity during the step of extruding to deposit at least a portion of a layer of polymer into the mold cavity, and subsequently enclosing the mold cavity with a mating mold section to produce a molded part.

Abstract: The invention is an extrusion device comprising an interleaving block portion. The interleaving block portion includes at least two first chambers, each first chamber including a width, a length, a height, and an input aperture. The length dimension of the first chambers are generally parallel. An output aperture is included in each first chamber, the output aperture is wider and shorter in height than the input aperture. A series of first distances are defined between the input aperture to points along the output aperture. A die portion is included in the extrusion device. The die portion has a laminate chamber having a height dimension. The height dimension of the laminate is disposed generally perpendicular to the length dimension of the first chambers. An output is disposed at one end of the height dimension. The laminate chamber is disposed so as to be in communication with the output apertures of the parallel first chambers.

Abstract: An array of dies having a closed configuration is used in a method and apparatus for making a closed composite article that comprises multilayered materials. In the method and apparatus, at least two extruders are used to extrude at least two material streams through the die array to provide an extrudate comprised of alternate layers of material from the at least two material streams. The compositions in the two material streams can be the same or different.

Abstract: A method for making gradient refractive index optical components includes mixing a molten basic material (11) with a refractive index modifying material (21) in continuously changing proportions. The mixture is changed into a plurality of semi-molten fibers (41), and the fibers are rolled to form a continuous plate (51). The plate has a continuously changing refractive index along a lengthwise direction thereof. The plate is wound around a spindle (57) to obtain a wound preformed rod (58). The preformed rod is integrally fused by local heating, and drawn to form a draw (61) having a predetermined diameter. The draw is cut into pieces. Each piece can then be made into an optical component having a continuously changing refractive index in a radial direction. The method allows precise control of all steps, and such control is achieved with relative ease throughout.

Abstract: An extrusion molding apparatus for a product having a wood pattern and an extrusion molding method are disclosed, in which a second synthetic resin containing a wood powder of 80˜120 meshes at a predetermined ratio is fed to a die through a second extruder and then is coated on a surface of the product, thereby providing an esthetic surface and an improved durability.

Abstract: A method and apparatus for extruding plastic products having complex cross sections, which require a complex die cross section, is described in which the cross section of the die is divided into regions of critical flow and separate flow streams are supplied to each region in proportion to the relative size of the region to the overall die cross section.

Abstract: Manufacturing process of a sulfoaluminate or ferroaluminate cement, cement obtained by this process, and installation for implementation. The invention concerns a manufacturing process of cement (1) from a mixture (2) containing CaCO3, Al2O3 and/or Al(OH)3, CaSO4, SiO2 and/or a product containing silica or silicates such as clay, these compounds being present in the anhydrous or hydrated form, individually or in combination.

Abstract: An extrusion die has a distributing tool; a profiling nozzle; and at least three melt-flow ducts; a first melt-flow duct is routed around a second melt-flow duct or the distributing tool using a branch and is merged again downstream from the branch; and a third melt-flow duct opens into the second melt-flow duct. The extrusion die is suitable for extrusion of a hollow-chamber profiled panel of a thermoplastic plastic with a layered structure which comprises a top and bottom layer of a first plastic melt; and an intermediate layer of a second plastic melt disposed in an interior of a hollow chamber profile. The first plastic melt is allocated to the first melt-flow duct and to the second melt-flow duct and the second plastic melt is allocated to the third melt-flow duct. During the extrusion the second plastic melt is deposited onto the first plastic melt upstream from or in the region of the branch, and a distribution of the deposited second plastic melt is regulated using the distributing tool.

Abstract: A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers.

Abstract: A tread band for vehicle tires is manufactured by conveying a primary elastomer material (4) through an extrusion path (11, 15) defined by a preforming channel (15) followed by an extrusion outlet (11) formed in a die (10). The preforming channel (15) is defined in a preforming device (9) comprising a drawer (12) operatively engaging a preformer (13). Formed in the drawer (12) is an auxiliary channel (17) the end length (17b) of which opens at right angles into the extrusion path (11, 15), close to the extrusion outlet (11). An auxiliary elastomer material (5) conveyed to the auxiliary feeding channel (17) is homogeneously distributed by a coating effect under the lower surface of the tread band (4a) crossing the extrusion outlet (11).

Abstract: A novel technique for molding multi-layer polymer plastic articles having inner, outer and interior or core layers by controlling relative volumetric flow rates of the inner and outer layers to enable relative shifting of the position of the core, and also the relative thickness of the inner and outer layers in the molded articles; and with leading, and, where desired, trailing ends of the interior layer flow into the mold cavity substantially positioned on the zero gradient of the velocity profile of the flowing polymer streams.

Abstract: Providing a narrow strip of electrically conductive rubber extending from a lower undertread layer to the surface of the tread by positioning a slotted chimney block in an outer tread rubber passage of a tire tread die and having the chimney block passage in communication with a lower undertread passage of the tire tread die.

Abstract: A tread band for vehicle tires is manufactured by conveying a primary elastomer material (4) through an extrusion path (11, 15) defined by a preforming channel (15) followed by an extrusion outlet (11) formed in a die (10). The preforming channel (15) is defined in a preforming device (9) comprising a drawer (12) operatively engaging a preformer (13). Formed in the drawer (12) is an auxiliary channel (17) the end length (17b) of which opens at right angles into the extrusion path (11, 15), close to the extrusion outlet (11). An auxiliary elastomer material (5) conveyed to the auxiliary feeding channel (17) is homogeneously distributed by a coating effect under the lower surface of the tread band (4a) crossing the extrusion outlet (11).

Abstract: The invention relates to a two-colored or multi-colored foam foil (50) on the basis of thermoplastic synthetic material, comprising at least one top layer and one sub-layer, whereby the sub-layer constitutes a foam layer (17) and the top layer exists in the form of a two-colored or multi-colored compact foil (4) of a carrier (15) and at least one additional layer (16), whereby the additional layer(s) (16) are surface-flush arranged in a corresponding recess (19) of the carrier (15) and both, carrier (15) as well as the additional layer(s) (16) each form a portion of the surface of the foil and are colored a different color. The invention relates, moreover, to a method as well as a device for the manufacture of the invention-specific two-colored or multi-colored foam foil (50).

Abstract: A three-phase center-filled gum or bubble gum candy lollipop product. An extruded gum or bubble gum material has a semi-liquid center-fill material added to it in a batch forming mechanism simultaneously with the formation of an exterior candy shell. The three-phase rope of material is formed into lollipop candy members in a forming machine and lollipop sticks are inserted into them. The formed lollipop products are then cooled, tumbled and prepared for further processing.

Abstract: Complementary roof tiles for a staggered roof tile layout are provided by: (i) extruding and conveying a composite ribbon; (ii) demarcating the composite ribbon into an alternating succession of a first roof tile type and a second roof tile type by engaging the composite ribbon with an upstream cutting blade and a downstream cutting blade, such that each roof tile type is demarcated at an upstream tile edge by one of the cutting blades and at a downstream tile edge by the other of the cutting blades, and such that a selected one of the roof tile types includes a pair of cut-out portions demarcated along one of the upstream and downstream tile edges on opposite ones of the ribbon side edges; (iii) separating the succession of demarcated roof tile types into distinct roof tiles; and (v) curing the distinct roof tiles to form a set of cured roof tiles.

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: A method and apparatus for extruding unvulcanized rubber in a tire production process, in which an unvulcanized rubber extruded member can be formed by extrusion. An extruded rubber member having a cross section in which a portion of a second unvulcanized rubber intrudes between portions of a first unvulcanized rubber is formed by extrusion. The apparatus includes a first passage for the first unvulcanized rubber, a second passage for the second unvulcanized rubber, and a flow dividing mechanism where the first and second passages are adjacent or connected, which separates a portion of the first unvulcanized rubber passing through the first passage such that the first unvulcanized rubber is disposed at both sides of the intruded second unvulcanized rubber. In the method, the first unvulcanized rubber is divided into two flows, and a portion of the second unvulcanized rubber is caused to intrude therebetween.

Abstract: An integrated unit for producing double-layered spherical products (23) in two rows on a belt conveyor (25) under it is disclosed. The length of the integrated unit is aligned with the traveling direction of the conveyor (25) in order to reduce the space needed on both sides of the conveyor (25). The integrated unit includes a filling feeder (15) and a casing feeder (17) for feeding a filling (5) and a casing (9) such that the feeders (15) and (17) are arranged opposite each other. A space between the feeders (15) and (17) of the integrated unit is provided with vane pumps (29A) and (29B) and a pair of double nozzles (13A) and (13B), which are positioned in the center of the integrated unit. The vane pumps (29A) and (29B) pump the corresponding materials (5) and (9) from the corresponding feeders (15) and (17) to the corresponding double nozzles (13A) and (13B). Each double nozzle extrudes the filling (5) and the casing (9) in a form of a double-layered elongated product.

Abstract: A machine for preparing food products, for example lasagne, comprising a feeder which is suitable to take a plurality of lines of product and to feed each line to a respective product conveyor; each line comprises product distribution units suitable to distribute the product in respective containers fed by a conveyance device. The product conveyors extend parallel to each other and one above the other and have different lengths, each product conveyor having a delivery end at a distribution station which is suitable to deposit the product, which arrives from the respective product conveyor, in a container which is supplied to the distribution station by the conveyance device.

Abstract: In a co-extrusion system, a primary extruder is connected to a primary flow director to direct the solid melt from the primary extruder to the co-extrusion assembly. A secondary extruder is connected to a secondary flow director to direct the melt from the secondary extruder to the co-extrusion assembly. A co-extrusion assembly produces simultaneous co-extruded melts without any significant pressure change in the melt. Dies shape the co-extruded melts to a desired shape.

Abstract: Disclosed is a nozzle arrangement for the coextrusion of a product with at least two layers, whereby a distributor portion 14 adjacent to the extruder is provided through which an extruding mass is delivered to the extruder and whereby a nozzle portion 12 for the extrusion of the extrusion mass is connected to the distributor portion, whereby in accordance with the invention a mounting and connecting base is provided between the distributor portion and the nozzle portion.

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: This invention relates to an apparatus and method for introducing various additives in solid form into a soap mass for the ultimate manufacture of soap bars. Specifically, the invention is directed to producing soap bars having a multicolored or marbleized appearance and made from a variety of different colored soap materials. Soap pellets having a color are introduced into a soap plodder as is customary. A second or alternate color of soap pellet is separately introduced into the interior of the plodder just before that point where the helical screw of the plodder enters the barrel of the extruder portion of the plodder.

Abstract: This invention provides an apparatus and method for injecting an additive directly into a polymer melt stream. The method comprises supplying a melt flow of a polymeric host material to a die assembly having a thin-plate assembly and injecting at least one additive into at least one predetermined location in a cross-section of the melt flow of the polymeric host material while the melt flow passes through the die assembly. The method achieves uniform dosing of the one or more additives in the extrusion direction in the polymeric host material without homogeneously mixing the one or more additives and the polymeric host material. The apparatus for directly injecting one or more additives into a polymer melt stream comprises a pumping system, a die assembly having a thin-plate assembly, and a distribution line.

Abstract: A process for making an aerated, confectionery product of multiple colors includes, as a first step, preparing a slurry of water, sugar, and gelatin. The slurry is divided into at least first and second portions or batches having a defined color to provide a second color. A dye or colorant of a color is added to the second portion or batch to provide a second color. Each of the first and second batches are then individually aerated to form first and second aerated streams of first and second colors of substantially identical density and rheological properties. After aeration of the first and second portions, the first and second colored streams are fed to an extrusion die manifold, where they are extruded in disproportionate amounts to form a multicolored a rope having the first and second colors of unequal proportion. A starch anti-sticking agent is applied, and the rope is cut into individual pieces. The individual pieces are then dried to a 1 to 5% moisture content.

Abstract: A pneumatic tire includes a low conductive rubber portion forming at least a cap rubber portion of the tread rubber which provides a tread surface of the tire. A narrow high conductive rubber strip extends in a radial direction of the tire at a widthwise center region of the cap rubber portion, and is exposed to the tread surface to form a discharge path for allowing electrostatic charges of a vehicle body to be discharged to a road surface. An unvulcanized tread rubber for the tire is obtained by passing a high conductive unvulcanized rubber through a passage extending from an extruder unit to the back side of an extrusion orifice, to form at least part of the remaining potion of the tread rubber.

Abstract: A tread band for vehicle tires is manufactured by conveying a primary elastomer material (4) through an extrusion path (11, 15) defined by a preforming channel (15) followed by an extrusion outlet (11) formed in a die (10). The preforming channel (15) is defined in a preforming device (9) comprising a drawer (12) operatively engaging a preformer (13). Formed in the drawer (12) is an auxiliary channel (17) the end length (17b) of which opens at right angles into the extrusion path (11, 15), close to the extrusion outlet (11). An auxiliary elastomer material (5) conveyed to the auxiliary feeding channel (17) is homogeneously distributed by a coating effect under the lower surface of the tread band (4a) crossing the extrusion outlet (11).

Abstract: A die for manufacturing honeycomb bodies includes; a die main body having batch supply holes which are opened to a backside surface of the die, slit channels which are communicated with the batch supply holes and are opened to a foreside surface of the die and a taper worked portion which is formed by working an outer peripheral portion of the foreside surface of the die in a taper manner; and a control plate arranged at a portion opposed to the taper worked portion. In the die having the construction mentioned above, slit channel expanding portions are formed at open ends of the slit channels existing in the taper worked portion in such a manner that the slit channel is expanded gradually toward the open end.

Abstract: A method and apparatus for runnerless injection molding of plastic materials utilizing a novel valve stem for controlling the opening and closing of at least two gates in a single injection nozzle The method and apparatus includes at least two separate melt streams whose flows are not obstructed by the valve stem. These melt streams may contain the same plastic material or different plastic materials and the injection nozzle may be either simultaneously or sequentially activated for filling the mold cavity.

Abstract: Methods and apparatuses are provided for the manufacture of coextruded polymeric multilayer optical films. The multilayer optical films have an ordered arrangement of layers of two or more materials having particular layer thicknesses and a prescribed layer thickness gradient throughout the multilayer optical stack. The methods and apparatuses described allow improved control over individual layer thicknesses, layer thickness gradients, indices of refraction, interlayer adhesion, and surface characteristics of the optical films. The methods and apparatuses described are useful for making interference polarizers, mirrors, and colored fihns that are optically effective over diverse portions of the ultraviolet, visible, and infrared spectra.

Abstract: The present invention is a continuous process of producing an object with radially-varying material properties. These objects can be cylindrical forms made from polymeric materials. This process requires a novel device. The device can be used to produce high bandwidth gradient-index plastic optical fiber (GRIN-POF). This fiber is highly advantageous for use in high speed local area networks (LANs) as well as other short-range optical communication applications. The device can also be used to produce GRIN lenses which can be used in the focusing and transmission of images.

Abstract: A pre-twisted cable pair and a method for processing such pairs into an electrical cable having improved electrical and mechanical properties is disclosed. At least one insulated wire for transmitting electrical signals is pre-twisted prior to pairing with another insulated wire. As the pre-twisted wires are paired by a conventional double-twist machine which imparts back-twist, the detrimental electrical effects caused by irregularities in the individual wires are cycled over a very short distance, resulting in a cable pair having lower structural return loss, near-end crosstalk, and insertion loss than wires paired without any pre-twist. These pre-twisted wires may be united into a jacketed electrical cable by a continuous-extrusion jacketing process in which an optimal dielectric constant is maintained around each individual cable pair.

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:

Abstract: An extrusion material is extruded through a tool and a fluoropolymer is between the extrusion material and a surface of the tool for reducing friction between the extrusion material and the surface of the tool. The surface of the tool is of a material with thermal conductivity greater than 30 W/mK.

Abstract: A method of making a disposable tubular device comprising extruding a first material through a first die to form the tube and moving the tube through the second die while extruding a second material through the second die to form the tube-support structure. The second material has a surface hardness which is greater than the surface hardness of the first material.