Abstract: A structure configured to be overmolded with a material includes a deformable portion that may be biased by a slider of a mold. When biased by the slider, the deformable portion may deform in the direction that the deformable portion is being biased by the slider. The deformable portion may be deformed in order to reduce flash during an injection molding process.

Abstract: An injection molding device, includes a first mold which has an injection material channel and a second mold defining a first cavity in which a first product part can be injection-molded. The first mold can be moved in a direction different from the mold opening direction. In this manner, especially two-component products can be produced, the first mold together with the first product part being moved to a third mold section with which a second cavity for injection of another injection material is defined.

Abstract: An apparatus for molding a thermoplastic package part(s) to an end portion of a container body includes inner and outer mold elements between which a mold cavity per package part is formed. At least one of these mold elements is at least partly freely suspended. When one package part is molded with the mold elements, plastic melt is injected in a first number ?1 of points in the cavity, an island of plastic melt for each point is formed inside the cavity, and the distribution of the points causes a force center to pass through a surface defined by a parallel projection of each first number of islands on a plane orthogonal to a direction of the compression force, and when the first number >1, a second number of imaginary straight lines interconnecting a third number of parallel projections such that the surface is at its maximum.

Abstract: Moulding equipment for the production of plastic parts via the injection of a molten thermoplastic resin, chiefly consisting of a mould (2) which consists of at least two mould halves (3,4), which when closed together produce a cavity (11) and a core (8), wherein at least one mould half or mould part (3 and/or 4) contains at least one moveable mould part (7) with the necessary system to control the movement of the mould part or parts (7) using the active control of the cavity (11) pressure.

Abstract: A headset can include a cable structure connecting non-cable components such as jacks and headphones. The cable structure can be constructed using a molding process. Different approaches can be used to ensure that a conductor bundle extending through the cable structure remains centered within the cable structure during the molding process. In some cases, a movable tube can be placed in the mold such that the conductor bundle is retained within the tube. As material is injected into the mold and reaches the tube, the tube can be displaced and progressively removed from the mold. Alternatively, the movable tube can be constructed such that the tube may combine with injected material to form a shell of the cable structure. In some cases, gates from which material is provided in the mold can be positioned and controlled to facilitate the injection of material in the mold while maintaining the centered position of the conductor bundle.

Abstract: An insert molding method includes holding a plurality of insert members in a molding die to be separated from one another, and subsequently filling a resin into the molding die to fill a gap between the insert members and a periphery thereof with the resin to form an insert molded product such that the insert members are separated at a preset interval from one another. The molding die includes a space-maintaining projection for maintaining a separation interval between the insert members at the preset interval or more, the projection being formed on an inner wall surface of the molding die opposite to a longitudinal end of the insert members, and a gate for filling the resin therethrough into the molding die, the gate being formed on an inner wall surface of the molding die opposite to a side of the insert members in a width direction thereof.

Abstract: According to embodiments of the present invention, there is provided a cavity insert for a molding system, the cavity insert having a deformable portion. More specifically, A cavity insert (106) is provided, the cavity insert (106) is for a molding stack (102) for use in an injection mold, the cavity insert (106). The cavity insert (106) comprises a body (122) configured to be received, in use, within a cavity plate (104) of the injection mold; the body (122) defining: a cavity molding surface (124) along an inner portion thereof; a circumferentially deformable portion (123); and an actuator interface (134) configured to cooperate, in use, with a complementary actuating interface (136) that is defined on a compression member (138) to generate a compressive force that selectively elastically deforms the circumferentially deformable portion (123).

Abstract: An automotive interior material with high appearance quality and a method of manufacturing the same includes a door trim (automotive interior material) having a flat portion (main-body portion) covering a door panel and an armrest protruding into the vehicle compartment. Molten resin material added with a foaming agent is supplied into a cavity formed between a pair of molds. Then, opening of the pair of molds by a predetermined amount causes the molten resin material in the cavity to foam. An upper surface (vertical wall portion) of the armrest is connected to the flat portion and extends in a thickness direction of the flat portion. A surface of the upper surface facing outward from the vehicle compartment is formed with a recessed portion. During a vehicle collision, an object in the vehicle presses the arm rest formed on the door trim. Then the door trim is broken and deformed in the recessed portion, so that the armrest is crushed, thus absorbing an impact by a collision.

Abstract: an electrical device has a first portion intended for receiving a complementary electrical lamp and a fixed connector intended for receiving power supply wires extended by at least one contact leading into said first portion, the fixed connector including a lock that is only activated when the contacts are correctly inserted in the fixed connector, the first portion, the fixed connector and the lock thereof being moulded simultaneously, the lock being is made up of a slide translatably mobile relative to the fixed connector between a retracted position permitting the insertion of contacts, and a locked position in which a shutter prevents the removal of the contacts. a method for moulding such a device and a mould for producing such a device, are also enclosed.

Abstract: An injection molding device comprises a mold-clamping device that operates in both of a mold-closing state in which a mold is closed under predetermined pressure and a micro mold-open state in which the mold is held in a state in which the mold is open from the mold-closing state by a predetermined amount, an injection device that molds a molded product by injecting a molding material into the mold set to the mold-closing state or the micro mold-open state and a controller that changes a stop position of the mold in the micro mold-open state in accordance with a change of a mold-closing position when the mold-closing position of the mold in the mold-closing state is changed.

Abstract: An injection molding device comprises a mold-clamping device that operates in both of a mold-closing state in which a mold is closed under predetermined pressure and a micro mold-open state in which the mold is held in a state in which the mold is open from the mold-closing state by a predetermined amount, an injection device that molds a molded product by injecting a molding material into the mold set to the mold-closing state or the micro mold-open state and a controller that changes a stop position of the mold in the micro mold-open state in accordance with a change of a mold-closing position when the mold-closing position of the mold in the mold-closing state is changed.

Abstract: An injection-compression molding apparatus for producing a shaped plastic part has a first mold plate and a second mold plate, which delimit a component cavity and between which there is a gap in the non-closed state. The apparatus further comprises a plastics compound feeding arrangement for introducing plastics material through the gap into the component cavity, having a gate cavity which is substantially separated from the component cavity when the gap is closed.

Abstract: An extruder or injection molding machine with user-specifically monitoring and regulating processing of plastic materials includes a material feed, a plasticizer, and a mold. A process input variable, e.g. cost of the apparatus, raw material, power, and processed quantity, can be inputted with an input device and transmitted to a controller. A process monitoring variable, e.g. the duration of a product cycle, product cost, raw material used/power consumed per product cycle, expected purchase price for a given quantity of a product, and number of product cycles until maintenance, can be determined in real time from a process control variable and/or process input variable. A value of a process monitoring variable, such as the actual desired, or mean value, the value integrated since starting, the history or tendency of this value, can be outputted on an output device in form of a characteristic diagram.

Abstract: Methods for the manufacture of a microprojection array are provided. In the methods, a formulation is introduced into cavities of a microprojection array mold by means that achieve a uniform amount of formulation retained in each cavity.

Abstract: To provide a preform, a bottle and a preform molding apparatus capable of preventing lowering in the mechanical strength of a preform, reducing the amount of a resin material, as well as improving productivity. A preform mold 1e used in the preform molding apparatus has a mouth neck part mold 2, a body part mold 3e and a core mold 163, and the body part mold 3e has, on the outer edge of the upper surface of a cylindrical protrusion part 31e, an annular protrusion 33 which controls the moving direction of a solidified film 118 and a solidified film 117 which have been peeled.

Abstract: The dimensions of a portion of an injection molded hollow product formed in a mold cavity between a first cavity surface of a cavity section and a first core surface of a core section are adjusted by adjusting the position of the first cavity surface relative to the position of the first core surface so that the first cavity surface and the first core surface are in a selected relative position when the cavity section is combined with the core section and a protractible and retractable core part is protracted so that a cavity abutment mold part can be connected directly to the protracted core part and the cavity abutment mold part also can be connected indirectly to the protracted core part by a series consisting of abutting mold parts. This series includes a pair of abutting rotatable eccentric rings, which are rotated to adjust the relative positions of the first cavity surface and the first core surface.

Abstract: A mold for forming a temporary prosthesis has at least two mold members at least partially separable from each other. The at least two mold members cooperatively define a generally enclosed interior cavity for forming the temporary prosthesis. The mold has a securement structure mounted on the at least two mold members for securing the at least two mold members to each other during the forming of the temporary prosthesis. The securement structure is removable from the at least two mold members by hand and without the use of a tool.

Abstract: [PROBLEM]To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [MEANS FOR SOLUTION]A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.

Abstract: Apparatus and method for making a plurality of different types of suture packages employ a mold with first and second opposing mold parts partially defining a mold cavity, at least one of the opposing mold parts has an opening therein communicating with the mold cavity. An insert is removeably inserted into the opening, to complete the mold cavity in a form suitable for molding a first type of suture package. An alternative insert is interchangeable with the first insert for completing the mold cavity in a form suitable for molding a second type of suture package. To make different suture packages, the mold is initially configured and used with one of the inserts to thereby make one type of suture package. The first insert is then replaced with the second, changing the mold cavity to form another type of suture package.

Abstract: The present disclosure provides implants suitable for drug delivery. In embodiments, the present disclosure provides layered biodegradable drug delivery implants and systems and methods for making these implants.

Abstract: There is provided an injection molding method in which a molten resin, which is injected into a molding space formed between a fixed side mold including a movable insert and a movable side mold, is cooled in a state in which a surface of the molten resin comes into contact with the movable insert and thereby the surface is solidified, and internal solidification of the molten resin is completed by cooling the molten resin in a state where the molten resin and the movable insert are separated from each other by moving the movable insert before the internal solidification of the molten resin, whose surface is solidified in a state in which the surface comes into contact with the movable insert, is completed.

Abstract: A process for the production of a molded article is disclosed. The process comprise a) placing a plastic film abutting the inside wall of a first half of a mold, said mold including a first and second halves, b) combining said second half with said first half in a manner creating a mold cavity, c) injecting resin into said cavity to produce an article to which surface adherently bonded is said plastic film, d) separating one of the halves from the other half, said article remaining with said other half, e) combining a supplemental half with said other half in a manner forming a gap between the inner wall of said supplemental half and the surface of said molded article, f) injecting lacquer into said gap, g) curing the lacquer to produce a lacquered molded article, and h) cooling and removing the lacquered molded article from the mold. The inventive process is particularly suitable for making vehicular mirrors.

Abstract: A method of injection moulding an article, the method comprising the steps of: (a) providing an injection mould comprising first and second mould parts, and having at least one movable portion of one of the first and second mould parts; (b) disposing the first and second mould parts in a fully closed configuration so as to define mould cavity therebetween for moulding an article, in the fully closed configuration the first and second mould parts defining a cavity outer surface which defines the outer shape of the article to be moulded in the mould cavity; (c) injecting molten material into the cavity at an injection inlet of the cavity; (d) during the injecting step, moving at least one movable portion of one of the first and second mould parts from a forward position, defining the article to be moulded, to a rearward position thereby to increase the volume of the mould cavity in the fully closed configuration and to reduce the flow length/thickness ratio of the cavity; (e) filling the mould cavity with the m

Abstract: A molded article with multi-material or color and soft portions and a method of making the same is disclosed. The molded article comprises a multi injection substrate, and a coverstock or skin. The article is formed by a process wherein the coverstock or skin is secured within the mold, a first material is injected into a first cavity, a retractor member is moved to define a second cavity, and a second material is injected into the second cavity. The first and second materials may be different types of plastic, different colors, or combinations thereof. The first cavity is defined by two mold sections (e.g., a cavity and a core) and the retractor member. The second cavity is also defined by the two mold sections, the retractor member, and the (at least partially) hardened first material. The first material may be configured to couple to the second material by a locking interface provided by recesses and/or projections on the mold sections.

Abstract: A method for manufacturing a separated tip catheter includes the following steps: positioning first and second cores in a cavity of a mold, the cavity having a substantially elongated shape and including a first end portion and a second end portion, wherein the first and second cores are oriented substantially parallel to each other; placing a sheet of material having a higher melting temperature than a molding material across the first end portion of the cavity; and injecting the molding material into the cavity of the mold.

Abstract: The present invention provides a method for producing an injection molded panel member having a first portion, a second portion, and an appearance surface portion. The method includes placing the appearance surface portion of the panel member into a mold cavity. The mold cavity preferably includes a first chamber adapted to form the first portion of the panel member, and a second chamber adapted to form the second portion of the panel member. After the appearance surface portion of the panel member is inserted into the mold, molten plastic material and pressurized gas are injected into the first chamber of the mold cavity. After the molten plastic material is injected into the first chamber of the mold, molten plastic material is injected into the second chamber of the mold cavity. The molten plastic is then cooled until it solidifies. After the molten plastic is sufficiently cooled, the pressurized gas is vented and the panel member is removed from the mold.

Abstract: Injection molding of a part having a nonuniform thickness is provided. One disclosed embodiment of an injection molding device includes one or more side walls, a first mold surface intersecting the side walls and being stationary with respect to the side walls, and a second mold surface intersecting the side walls so as to define with the side walls and the first mold surface a cavity configured to receive a metered amount of injected molten thermoplastic material. The second mold surface is moveable toward the first mold surface in such a manner that a first end of the second mold surface moves a larger physical travel distance toward the first mold surface than does a second end of the second mold surface during a molding process.

Abstract: An in-mold molded product coating mold includes a sealing portion molding cavity being positioned outside apart from a mold cavity while including a first molding surface which extends from a parting surface of the mold cavity in a mold mating direction of a stationary mold and a movable mold and is formed at either one of the stationary mold and the movable mold. A second molding surface extends from the parting surface in a mold opening/closing direction of the mold cavity and is formed at the other of the above-described two molds. A third molding surface connects the first molding surface and the second molding surface to each other, and forms a sealing portion for sealing the first and second molding surfaces by filling a resin identical to or different from a resin.

Abstract: The present invention relates to a method of manufacturing an opening leaf upper module intended to be mounted at the periphery of a glass panel of a vehicle, and to an opening leaf upper module of this type particularly comprising a rigid frame and a flexible weather strip. The method of manufacturing an opening leaf upper module (1) according to the invention, comprising a molded frame (3) based on at least one thermoplastic polymer and a molded weather strip (4) secured to the frame and based on at least one elastomer, comprises a step whereby a moving-platen mold or alternatively transfer molding is used to perform multiple-shot injection molding of materials that are intended to form the frame and the strip which are injected in succession, the elastomer being a thermoplastic elastomer compatible with this thermoplastic polymer, so as to obtain the module formed as a single piece.

Abstract: An injection-moulding method for selectively manufacturing moulded parts with and without a breakthrough is disclosed. A moulded part with a breakthrough is manufactured by positioning a mould core in a mould cavity, whereas a moulded part without breakthrough is manufactured by removing the mould core at least partly from the mould cavity. The mould cavity delimited by a nozzle-side mould platen and an ejector-side mould platen. The mould core is movable relative to at least one of the mould platens, in particularly the nozzle-side mould platen, in an advance direction, where the mould core is closer to the nozzle-side mould platen and an opposite withdrawal direction. At least one protective measure is provided for protecting the inner surface facing the mould cavity of the respective mould platen, in particularly the nozzle-side mould platen, from adverse mechanical effects during movement of the mould core in the advance direction.

Abstract: Injection-molding processes and systems are described herein. An exemplary method involves: (a) holding one or more inserts in a desired position within a mold cavity by contacting a retractable core to at least a portion of each insert, wherein the retractable core is a feature of a mold plate; (b) while the one or more inserts are being held in the desired position by the retractable core, initiating an injection of molten plastic into the mold cavity; (c) retracting the retractable core from the one or more inserts while continuing the injection of molten plastic into the mold cavity, wherein retracting the retractable core creates additional cavity space within the mold cavity between the retractable core and the one or more inserts; and (d) continuing the injection of molten plastic into the mold cavity until the mold cavity, including the additional cavity space, is filled.

Abstract: The subject invention provides systems and methods for customizing the arrangement of a food tray. The system includes a demonstration unit having a boundary defining a desired shape for a food tray, and components representing a segment of a food tray. Each of the components may be adapted to be arrangeable within the boundary with a subset of the plurality of components as desired to form a food tray arrangement. The system further includes a modular mold adapted to receive a sub-mold inserts in configurable arrangements, and the sub-mold inserts. Each sub-mold insert may correspond to one of the selection of components, and may be adapted to be positioned within the modular mold in a plurality of arrangements. The method includes providing a demonstration unit having a boundary that defines a desired shape for a food tray, and providing components each representing a segment of a food tray.

Abstract: An injection mold for injection molding an article having a base and a sidewall, the injection mold comprising: first and second mold parts which are adapted to be connected together in a closed configuration so as to define a mold cavity there between, the mold cavity having a base portion and a sidewall portion, an injector for injecting into the mold cavity molten material to be molded into the article, at least one portion of one of the first and second mold parts being movable when the first and second mold parts are in the closed configuration so as to vary the volume of the mold cavity, an actuator for selectively moving the at least one portion of one of the first and second mold parts in first and second directions so as to increase and reduce, respectively, the volume of the mold cavity.

Abstract: A localized over-molding die structure may include a core die, a cavity die having an inner space therein and placed onto an upper surface of the core die, and a slide die including a step portion on a lower surface thereof and slidably engaged with the cavity die in the inner space thereof to move upward and downward, wherein, the step portion includes an undercut formed at a lateral side thereof such that when at least two materials are successively injected into the cavity die, a corresponding part to the undercut is formed to at least one of the at least two materials.

Abstract: A method of molding a microneedle using a mold apparatus that comprises a mold insert (210)having the negative image of at least one microneedle (12), a compression core (240), and a mold housing configured to allow a reciprocal motion between the mold insert and the compression core. The mold apparatus has an open position and a closed position. The mold apparatus is placed in the closed position and polymeric material is injected into the closed mold apparatus. The injected polymeric material is compressed between the mold insert and the compression core by a reciprocal motion between the compression core and the mold insert. Also, molding methods wherein the mold apparatus has sidewalls having an injection gate (270). Also, molding methods comprising a heated mold insert. Also, molding methods comprising the application of high frequency acoustic energy, such as ultrasonic energy, to the mold apparatus.

Abstract: Scalable injection molding systems comprise a molding press and at least one delivery system. Each delivery system comprises an injection unit and a manifold. The scalable injection molding system further comprises at least one molding face pair having a cavity face and an opposing core face. Each scalable injection molding system comprises at least one scalable system selected from the group consisting of a scalable face-number system with respect to numbers of active mold face pairs in the scalable injection molding system and a scalable cavitation system with respect to numbers of functional mold cavities on each mold face pair. Both the scalable face-number system and the scalable cavitation system allow the output of the scalable injection molding system to be increased or decreased according to needs of the operator, without requiring costly reconfiguration, retooling, replacement, or unnecessary duplication of standard mold components.

Abstract: It may be possible to suppress the clogging of a gas vent, to simplify the maintenance of a mold device, and to improve the preform productivity. The invention may be applied to an injection molding machine including a split mold where a gas discharge portion is formed at parting surfaces. Further, the cross-section of a flow passage of the gas discharge portion is reduced at a predetermined timing after the start of the filling of a molding material. Since the cross-section of the flow passage of the gas discharge portion is reduced after a cavity space starts being filled with a molding material, it may be possible to make the amount of gas, which flows through the gas discharge portion, large until the cross-section of the flow passage of the gas discharge portion is reduced. It may be possible to prevent a foreign material from adhering to the inner peripheral surface of the gas discharge portion.

Abstract: The present invention relates to closures for mating with containers having a threaded finish. The closures comprise a flange and a skirt downwardly depending therefrom. The skirt includes a deformable element formed of a different material than that of the flange and skirt and disposed on an interior surface. The deformable element inner diameter is smaller than the outer diameter of the container, and accordingly deforms upon mating the closure with the container. The container threads impress threads into the deformable element to form threads on the closure. The deformable element is formed of a suitable material. The closures of the present invention provide for the use of high-speed press-on capping equipment.

Abstract: An injection molding device comprises a mold-clamping device that operates in both of a mold-closing state in which a mold is closed under predetermined pressure and a micro mold-open state in which the mold is held in a state in which the mold is open from the mold-closing state by a predetermined amount, an injection device that molds a molded product by injecting a molding material into the mold set to the mold-closing state or the micro mold-open state and a controller that changes a stop position of the mold in the micro mold-open state in accordance with a change of a mold-closing position when the mold-closing position of the mold in the mold-closing state is changed.

Abstract: A method for producing a molded article of an organic fiber-reinforced polyolefin resin from a polyolefin resin and an organic fiber having a weight average length of 4 mm or more includes the following steps (1) a preparing step of preparing an organic fiber-reinforced polyolefin resin containing a polyolefin resin and an organic fiber having a weight average length of 4 mm or more, (2) a melting step of melting the organic fiber-reinforced polyolefin resin to obtain a molten organic fiber-reinforced polyolefin resin, (3) a filling step of filling the molten organic fiber-reinforced polyolefin resin into a mold cavity which is formed by a pair of molds capable of being moved relatively toward or away from each other and which defines a changeable cavity clearance between them, and (4) a removing step of cooling the filled molten organic fiber-reinforced polyolefin resin to form a molded article of an organic fiber-reinforced polyolefin resin and removing the molded article of the organic fiber-reinforced pol

Abstract: The objective of the invention is to prevent electrostatic destruction of semiconductor chips during resin molding. With the semiconductor device manufacturing method, a substrate 400 that includes on the surface multiple semiconductor chips 410 and liquid resin 434 supplied to multiple semiconductor devices is supported by an electrically insulated lower die 200. An upper die 110 in which multiple shape-forming parts (cavities) 112 are formed is pressed against lower die 200 through the medium of a polymer release film 300, and liquid resin 434 on the substrate is molded.

Abstract: The mold for in-mold coating formation is one including a mold main body 30 having, provided thereinside, a mold cavity 5 permitting injection molding of a resin molding with coated surface and a coating material injecting unit 50 capable of injecting a coating material to an area corresponding to the coated surface of the resin molding, within the mold cavity 5, in which a groove portion 3 of 0.3 to 1 mm width (W) is provided on the peripheral edge 15 of the mold, and in which the angle (?1) made by the inner circumferential surface 25 of the mold and the mold-opening-side internal wall surface 27 of the groove portion 3 is in the range of 30° to 70°.

Abstract: Mold assemblies for compression molding of footwear components include molds, heating elements, conductor plates, insulating layers and carrier trays. An upper mold assembly is placed into a fixture attached to an upper press platen. A lower mold assembly slides into and out of a fixture attached to a lower press platen. Heating elements within the mold assemblies connect to electrical contacts in the fixtures when the mold assemblies are installed in the fixtures, thereby providing electrical power to the heating elements and heating the molds. A conveyor is positioned to receive a mold assembly from (or transfer a mold assembly to) the lower press platen fixture when the lower platen is in a lowered position.

Abstract: A metal mold for molding a lens cover can be provided without increasing the size of the metal mold or the production costs so as to prevent deterioration of production efficiency while also preventing any unfilled area or a thin thickness portion of a resin material from being formed in a final product. Also provided is a method for producing a lens cover utilizing such a metal mold. The metal mold can have a stationary mold, a movable mold and a slidable mold between them. A cavity for molding a lens sealing portion can be formed between the stationary mold and the movable mold, and the slidable mold can have a projection portion projecting into the cavity.

Abstract: An automated removal and insertion machine for mold drawers operable with a molding machine is described. The machine includes a frame, a plurality of actuators mounted within the frame, a plurality of encoders, a plurality of electromagnetic effectors, and a controller. The actuators are operable in a substantially horizontal direction for removal and insertion of molds with respect to the molding machine, and movable within the frame in a substantially vertical direction. At least one of the encoders is operably attached to each of the actuators for providing data indicative of a position of the respective said actuators. At least one electromagnetic effector is attached to a terminal end of each of the actuators for engagement with a respective mold. The controller is operable to control movement of the actuators in the substantially horizontal direction and further operable for controlling power applied to the electromagnetic effectors.

Abstract: A method of fabricating an anti-noise earplug having an inner tip serving as a core and an outer tip coupled to the inner tip to surround the inner tip and inserted into an ear includes the steps of: (a) shaping the inner tip; (b) fixing the inner tip to an upper mold for shaping the outer tip; (c) disposing the upper mold to face a lower mold having a cavity for shaping the outer tip; (d) injecting a resin composition for forming the outer tip into the lower mold; (e) pressing down the upper mold to the lower mold; (f) curing the resin composition to couple the outer tip to the inner tip; and (g) separating the upper mold from the lower mold and then separating the earplug, in which the outer tip is coupled to the inner tip as a body, from the lower mold. In fabricating the earplug, the inner tip and the outer tip can be molded in an in-line process, thereby improving the fabrication efficiency.

Abstract: Provided are a structure of molding tools and an injection molding device that can easily perform molding of an optical element even from a resin of low velocity or the like and can suppress any negative effects by air. The structure of the molding tools includes between the molding tools (61, 62) a fixed molding tool (61) and a movable molding tool (62) and an O-ring (63a) for keeping air tightness and a resin seal (63b) for preventing any resin leakage. The O-ring (63a) performs decreasing of the pressure in a cavity (CV) formed by joining the molding tools (61, 62), whereby the vacuum molding in which resin supply and resin curing is carried out under a decreased pressure can be performed. Accordingly, the effects such as prevention of air bubbling due to air trapping by injected resin within the cavity (CV) can be attained. Furthermore, the resin seal (63b) can prevent any resin leakage from the molding tools (61, 62) even when the resin having a low viscosity is used.

Abstract: The invention concerns a novel sample tube and a method of manufacturing a such a sample tube. According to the method an oversized mold cavity is formed with an opposing pair of mold members of an injection molding machine, the mold members being movable relative to each other and between which mold members the sample tube is formed. A volume of resin exceeding the prescribed volume of the sample tube is injected into the cavity and force is applied to said mold members in order to reduce the volume of said mold cavity for displacing molten polymer in the cavity and for compressing the polymer to form said sample tube. By means of the invention, sample tubes and vessels having ultra thin walls can be manufactured.

Abstract: Moulding equipment for the production of plastic parts via the injection of a molten thermoplastic resin, chiefly consisting of a mould (2) which consists of at least two mould halves (3,4), which when closed together produce a cavity (11) and a core (8), wherein at least one mould half or mould part (3 and/or 4) contains at least one moveable mould part (7) with the necessary system to control the movement of the mould part or parts (7) using the active control of the cavity (11) pressure.

Abstract: A resin-molding mold device is provided for carrying out the resin molding process to mold the resin molded article, wherein when cooling after charging a molten synthetic resin into a cavity (14) and maintaining the pressure, a movable core (11) is urged to the side in which the capacity of the cavity (14) is decreased. This enables a resin molded article having a proper shape to be reliably molded by preventing a design surface from parting from a cavity wall surface when die-molding the resin molded article by charging a molten synthetic resin into a cavity formed from a plurality of dies.