Abstract: The present invention related to an apparatus and method for the manufacturing of beverage capsules. The apparatus can preheat the material used to form the beverage material during the manufacturing process. The material and apparatus are particularly suitable for use in producing single serve beverage capsules from biodegradable materials.

Abstract: A method for manufacturing a hydraulic accumulator bladder includes the following steps: bonding a rubber sheet to the gas-filled air bladder to form a bladder blank; placing the bladder blank in a vulcanization device for vulcanization to form an initial bladder product; and releasing the gas in the gas-filled air bladder of the initial bladder product, taking the air bladder out, and naturally cooling the initial bladder product to a room temperature to form a finished bladder product. The bladder manufactured by the manufacturing method is integrally formed by one-step vulcanization, and has the advantages of uniform wall thickness, smooth inner and outer surfaces, long fatigue lifetime, a simplified process, high quality and good stability.

Abstract: The present invention increases tire formation precision and is a tire manufacturing method, which comprises a step S1 for forming a green tire on the outer surface of a rigid inner mold and a vulcanization step S2 for vulcanizing the green tire. The rigid inner mold comprises: an inner mold body, which is obtained from multiple segments; a core, which substantially binds the various segments; and an outer diameter adjusting means for changing the outer diameter of the core by changing the temperature of the core. Moreover. the rigid inner mold performs changes such that by expansion of the outer diameter of the core 5, the various segments move outward in the radial direction of the tire and gaps between the segments are enlarged, while by reducing the outer diameter of the core, the various segments move inward in the radial direction of the tire and the level differences R on the outer surface between adjacent segments increase.

Abstract: A tire mold apparatus is provided along with methods of retrofitting a tire mold, such that a tire mold of the type traditionally utilized in a dome type curing press can be modified to have external steam tracings allowing the mold to be utilized in a platen press.

Abstract: By providing projections 4 extending intermittently or continuously on the inner wall face of the cylindrical shaped bladder 2 at an inclination to the circumferential direction thereof, during vulcanization of a green tire G when the inside of the bladder 2 is filled by injecting with hot water as heating medium H and pressurizing medium, or steam as heating medium H and a gas as pressurizing medium, the heating medium H is guided along the projections 4 and flows in the circumferential direction of the expanded bladder 2, and flows in a rotating motion in the vertical direction of the bladder 2, and as a result of the synergistic action of the circular flow of the heating medium H in the circumferential direction of the bladder and the rotating flow in the vertical direction of the bladder, the temperature difference of the bladder 2 is sufficiently reduced.

Abstract: Method and device for vulcanizing vehicle tires using a heating press and a heating bladder. The method includes positioning a tire blank in the heating press, feeding steam into the heating bladder, stopping the supply of steam into the heating bladder, raising an internal pressure in the heating bladder to a predetermined setpoint value by feeding nitrogen into the heating bladder, and consistently maintaining the internal pressure of the heating bladder at the predetermined setpoint value through a pulsating input of nitrogen into the heating bladder occurring at least temporarily over a specific time.

Abstract: A method of molding and curing a tire for a vehicle wheel includes building an unvulcanized tire on a toroidal support; heating the support; pressing an inner surface of the tire against an outer surface of the support; and pressing an outer surface of the tire against walls of a molding cavity defined in a vulcanization mold. The inner surface of the tire is pressed against the outer surface by at least one secondary working fluid. The outer surface of the tire is pressed against the walls by at least one primary working fluid. The at least one primary working fluid is heated, causing vulcanization of the tire. An apparatus for molding and curing a tire for a vehicle wheel includes the vulcanization mold, at least one passage device, a feeding device, and first and second heating devices. It may also include an airtight device arranged to receive the support.

Abstract: A green tire disposed on a toroidal support is introduced into a vulcanisation mold. The mold is closed through axial approaching of a pair of sidewall plates acting against the sidewalls of the tire. Circumferential sectors set to operate against the tire tread band are maintained spaced apart from the tread band itself during admission of a working fluid designed to press the tire against the toroidal support. Subsequently, the sectors are centripetally approached for penetration into the tread band concurrently with a step of full molding and vulcanisation of the tire carried out through admission of steam under pressure into the tire itself.

Abstract: A tire building and cure station coupling apparatus and method for molding a green tire into a finished tire having a tread pattern. The green tire is constructed on a toroidally shaped core formed by a plurality of core segments each having an outer surface portion which together define a toroidal outer surface surrounding a central axis. The core is adapted to hold a green tire on said toroidal outer surface. A first spindle section is configured to be placed on a first side of the core along the central axis and a second spindle section is configured to be placed on a second side of the core along the central axis and opposite to the first side.

Abstract: A process for manufacturing a tire includes providing an elastomeric layer on an outer surface of a toroidal support, manufacturing the tire on the toroidal support provided with the elastomeric layer, introducing the tire supported on the toroidal support into a moulding cavity, introducing a fluid under pressure into a space defined between the toroidal support and an inner surface of the tire in order to press an outer surface of the tire against walls of the moulding cavity, and curing the tire. The elastomeric layer forms an inner circumferential surface of the tire. The process further includes causing an electrical current to flow in at least one heating element provided to the outer surface of the toroidal support so as to obtain at least partial precuring of the elastomeric layer. A toroidal support for carrying out the process is also disclosed.

Abstract: A plant and a process for producing tyres for vehicle wheels includes the steps of a) building a tyre on a toroidal support in a building line of a production plant; b) moulding and vulcanizing the assembled tyre in a vulcanization line of the production plant; c) transferring by means of a first transfer device the toroidal support and the relevant moulded and vulcanized tyre to a working station including a removing unit for removing the tyre from the respective toroidal support and a cooling unit for cooling the toroidal support; d) removing the moulded and vulcanized tyre from the relevant toroidal support in the removing unit; e) transferring the toroidal support from the removing unit to the cooling unit by means of a second transfer device different from the first transfer device; and f) cooling the toroidal support in the cooling unit.

Abstract: The present invention provides method and apparatus for tire vulcanization which can smoothly separate a bladder from the inner surface of a vulcanized tire by quickly detaching the bladder therefrom to contract it, when separating the bladder from the inner surface of the vulcanized tire by contracting the bladder after the vulcanizing. In the method in which a green tire (G) set in a die is vulcanized in a state that the green tire (G) is pressed into an inner surface of the die by inflating a bladder (30) with a fluid for heat/pressure application and attaching the bladder (30) in an inner surface of the green tire (G), when separating the bladder (30) from the inner surface (g1) of the vulcanized tire by contracting the bladder after the vulcanizing, detachment of the bladder (30) is facilitated by flowing a fluid between the outer surface (30a) of the bladder therefrom.

Abstract: The object of the present invention is to provide a vulcanization molding and its vulcanizing machine in which a heating pressure medium, which is nitrogen gas, is heated at high heat exchange ratio without an increase in the running cost and an increase in size. The vulcanizing machine includes a mold mechanism such as a lower side mold 5 and an upper side mold 25 and the like, which removably accommodate a green tire 4, an agitating mechanism 30, which agitates a heating pressure medium such as nitrogen gas or the like, which vulcanization mold the green tire 4 by heating the green tire 4 while pressing it against the mold mechanism, and an induction heating mechanism 41, which preferentially heats the agitating mechanism 30.

Abstract: The disclosed information describes a preheating method and apparatus for preheating raw tire including metal members embedded therein prior to vulcanization molding process, to heat whole part of the raw tire up to desirable temperature rapidly and certainly to complete vulcanization molding in a short time. The disclosed apparatus comprises a retaining means for retaining raw tire in a predetermined attitude in a releasable manner; a induction heating means for heating the metal members inductively by means of a high frequency magnetic field, the high frequency magnetic field being applied to raw tire retained by the retaining means; and a radiation heater for heating a rate-limiting portion radiatively, the temperature of the rate-limiting portion rising slowly under only induction heating for the metal members.

Abstract: An apparatus for effectively heating a green tire generates heat to a metal member embedded therein using electromagnetic induction, to complete a heating formation of a green tire in a sufficiently short time. Particularly, in the thick portion of the green tire which is hard to heat, the efficiency of heat generation due to electromagnetic induction is increased by effectively concentrating a high frequency magnetic field on the metal member embedded therein. The apparatus for heating a green tire includes a local heating coil for forming a high frequency magnetic field along a portion of extending direction of a metal member, a high frequency power supply for supplying high frequency power to the local heating coil, and a mechanism for moving the local heating coil relatively in the extending direction of the metal member.

Abstract: An apparatus for effectively heating a green tire generates heat to a metal member embedded therein using electromagnetic induction, to complete a heating formation of a green tire in a sufficiently short time. Particularly, in the thick portion of the green tire which is hard to heat, the efficiency of heat generation due to electromagnetic induction is increased by effectively concentrating a high frequency magnetic field on the metal member embedded therein. The apparatus for heating a green tire comprises a local heating coil for forming high frequency magnetic field along a portion of extending direction of a metal member, a high frequency power supply for supplying high frequency power to the local heating coil, and a mechanism for moving the local heating coil relatively in the extending direction of the metal member.

Abstract: A rigid core at least partially defining a manufacturing form for the internal surface of a tire, the core including a plurality of circumferentially adjacent fractions disposed side by side in contact with one another by their transverse faces, the transverse faces of at least one fraction converging radially at the exterior of the core, each of the fractions including a portion for attachment to a rim, the attachment portion being arranged at the radially internal end of each of the fractions, the attachment portion being produced essentially from a first material, the core further including a main portion which is integrally connected to the attachment portion, is produced essentially from a second material different from the first material and is integrally connected to the attachment portion, the manufacturing form being essentially defined by said main portion.

Abstract: A tire T is vulcanized by heating the tire T from both an outer forming surface So of an outer mold 2 for forming an outer surface of the tire T and an inner forming surface Si of an inner mold 3 for forming an inner surface of the tire T. The inner forming surface Si is divided into a plurality of inner forming surface portions Si1, Si1 and Si2 in accordance with portions of the tire T, and the inner mold 3 is provided with heaters 5U, 5L and 5M capable of heating the inner forming surface portions Si1, Si1 and Si2 at different temperatures. Since the tire is vulcanized while varying the heating temperatures from inside of the tire in accordance with the portions of the tire, it is possible to vulcanize each of the portions of the tire under optimal temperature condition without generating uneven temperature between upper and lower portions, and it is possible to enhance the performance of the tire.

Abstract: A tire press comprising a center post 22 vertically movably extended through a center part of a lower ring mechanism 12 and vertically moving an upper ring 19 with respect to a lower ring mechanism 12, a heater 103 arranged in an outer peripheral position of the center post 22 on the tire inner peripheral side of a green tire 4 held by the lower ring mechanism 12 and the upper ring 19, heater 103 to apply a heat to the green tire 4, a first driving mechanism such as a tubular member vertically moving cylinder 98 capable of vertically moving the heater 103 to a suitable height position so as to move the heater 103 to a suitable position independently of vertical movement of the center post 22, and a second driving mechanism such as a driving motor 99 capable of rotating the heater 103. By the provision of such a mechanism as described, press molding relative to a green tire 4 can be completed in a sufficiently short period of time.

Abstract: The present invention provides an apparatus for effectively heating a green tire by generating heat to a metal member embedded therein using electromagnetic induction, to complete a heating formation of a green tire in a sufficiently short time. Particularly, in the thick portion of the green tire which is hard to rise temperature, the efficiency of heat generation due to electromagnetic induction is increased by effectively concentrating high frequency magnetic field on the metal member embedded therein.

Abstract: A center mechanism of a tire vulcanizer in accordance with the present invention has an upper clamp ring for holding the upper opening end of a bladder, a lower clamp ring for holding the lower opening end of the bladder, a lower ring on the lower mold side supporting the lower clamp ring, a spacer installed to the lower ring and having a ventilating portion, and a center post elevating cylinder installed to the spacer. The extending portion of piston rod of the center post elevating cylinder is made a center post, the center post is inserted, in such a manner as to be movable vertically, into a through hole formed in the center of the lower ring and the lower clamp ring, and the upper clamp ring is fixed to the upper end portion of center post protruding upward from the through hole of the lower clamp ring.

Abstract: A vehicle tire loading-unloading and stabilizing device having a mobile loading-unloading unit designed to enter inside a tire curing unit for receiving a cured tire on an upper unit and, at the same time, releasing onto the curing unit a green tire loaded on a suspension unit located beneath and integral with the upper unit; the upper unit being a stabilizing unit enabling the cured tire to be inflated by means of a pressurized fluid, and to be cooled from the inside by forced circulation of the pressurized fluid.

Abstract: A tire curing device wherein an upper half mold and a lower half mold define a toroidal chamber for accommodating a tire to be cured and constituting a portion of a closed circuit for a batch charge of a heat exchange fluid, the tire being cured by circulating the fluid along the circuit by means of an impeller device; the fluid being heated by a heating device as it flows along a return conduit having an annular section increasing towards the impeller device and coaxial and aligned with the annular inlet of the same; the fluid being fed to the toroidal chamber along a delivery conduit having an annular section and so shaped as to exert at least on compression-expansion action on the fluid.

Abstract: A tire curing device in which a mold defines a toroidal chamber for accommodating a tire to be cured, and constituting a portion of a closed circuit along which a batch charge of a heat exchange fluid is force circulated, the fluid being heated by a heating unit provided with extractable internal axial electrical resistors, and lapped externally by the fluid from the toroidal chamber with the heating unit being mounted axially through an upper portion of a first tubular body, and axially engaging a second tubular body coaxial with the first tubular body; the tubular bodies defining there between a delivery conduit for the fluid to the toroidal chamber being defined between the second tubular body and the heating unit, the reistors of which are accessible externally through the upper portion of the first tubular body.

Abstract: The steam platen comprises spaced flat horizontal exterior walls each having a horizontal outside surface, and concentric cylindrical walls, one an inside wall and the other an outside wall both of which extend from the first to the second flat wall. The first flat wall abuts a mold half and the second flat wall abuts a supporting structure such as a base or a head, and these flat walls may be termed a mold sidewall and a bolster sidewall respectively. The interior space between the first and second flat walls has a plurality of partitions which extend from one flat wall to the other and which form one or more continuous serpentine steam passages which constitute a steam cavity. This steam cavity covers the entire area of the mold and is devoid of dead spots, so that the mold sidewall is heated by the steam to an essentially uniform surface temperature. For ease of fabrication, the platen may be formed as two separate pieces, i.e.

Abstract: A method and an apparatus for vulcanizing an elastomer product, such as automobile tires, wherein the elastomer product is placed in a vulcanizing chamber in a mold steam at an elevated pressure is supplied to the vulcanizing chamber to heat and pressurize the elastomer product until the elastomer product reaches a prespecified temperature or for a prespecified period of time, the steam supply is stopped and a pressurizing gas, at a pressure not lower than the steam supply pressure, is supplied to the vulcanizing chamber until the end of a heating period, said steam being blown in and supplied from an upper position of the center of the vulcanizing chamber in a horizontal direction or in an inclined downward direction, said steam being blown in and supplied from a lower position of the center of the vulcanizing chamber toward an upper region of the vulcanizing chamber.

Abstract: An apparatus for vulcanizing elastomer product including separate passages to supply the heating and pressurizing medium through respective blow supply nozzles with the heating medium being blown to a lower portion of the vulcanizing chamber and the pressurizing medium being blown to an upper portion of the vulcanizing chamber.

Abstract: An apparatus for vulcanizing an elastomeric product includes a mold in which the elastomeric product to be vulcanized is disposed, a piston gland having a first supply passage for supplying a heating medium, and an annular junction chamber. The first supply passage communicates with the interior of the junction chamber. The junction chamber has an outer wall which separates the junction chamber from the interior of the product, and a nozzle in the outer wall directs heating medium from the junction chamber into the interior of the product in a downward direction toward the lower portion of the product. An enclosure overlies the junction chamber. The piston gland has a second supply passage for supplying a pressurizing medium which communicates with the enclosure to supply pressurizing medium to the enclosure, the pressurizing medium passing from the enclosure to the interior of the product.

Abstract: The known tire vulcanizing machine of the type in which upper and lower bolsters are disposed within a frame, upper and lower metal molds are respectively fixedly secured to the upper and lower bolsters, and a press mechanism for bringing the upper and lower metal molds into tight contact with each other under a pressure is disposed between the frame and either one of the bolsters, is improved so that a green tire loaded in the machine can be visually inspected up until just before the upper and lower metal molds come into tight contact with each other. In one preferred embodiment, a vertically movable pressure-receiving plate having a polygonal shape is rotatable between short-sized position in which it can vertically pass through a space between upper beams and a long-sized position in which it cannot vertically pass through the same. A rotary drive is provided for rotating the pressure-receiving plate about its center.

Abstract: Apparatus for vulcanizing an elastomeric product includes separate passageways for supplying a heating medium to a lower portion of the vulcanizing chamber and an inert gas pressurizing medium to the upper portion of the chamber. The mixing of the fluids minimizes the temperature difference in the inner space of the product and ensures a uniform vulcanization.

Abstract: A bag control mechanism (or center mechanism) for a tire press in which cross flow of curing medium from the inlet to the outlet is prevented. The center mechanism includes a cylindrical casing having a piston rod reciprocable therein, and an annular fluid distribution member comprising a hub and a distribution cap at the upper end of the casing. The hub has a central bore of larger diameter than that of the piston rod, and inlet and outlet passageways for a curing medium, on opposite sides of the bore. The hub may also have passageways which permit sensing of a condition such as temperature within the tire press. The hub also has lateral passageways from the bore to the outlet passageway, and from the outside surface of the hub to the outlet passageway. The inlet passageway is separated from the bore by a portion of the hub's body. The distribution cap has an opening or passageway aligned with the inlet passageway of the hub, and a cut-out portion aligned with the outlet passageway of the hub.

Abstract: The heat-sink capacity of a thick-walled article being cured with a hot liquid supplying heat to one side of the wall, allows the point of least cure (PLC) to receive a higher rate of cure equivalents even after the hot liquid is replaced with a cold liquid. In the mean while, the other side of the wall continues to be heated. Because such a change-over is effected before the PLC has received the minimum number of cure equivalents required to effect a cure at the PLC (a "pre-cure change-over"), a valving arrangement is provided which allows the change-over to be effected without permitting a pressure drop in the bladder sufficient to permit the tire to "blow" because it is as yet uncured when the change-over is effected. Such a pre-cure change-over cannot be made when steam is replaced with water at ambient temperature.

Abstract: A mobile tire curing unit having top and bottom mold halves interconnectable in releasable manner so as to define an annular chamber for receiving a green tire, with one of the mold halves incorporating a closed circuit for a given curing media supply under pressure, the circuit being defined by a deformable curing bladder, designed to occupy the annular chamber, and by a casing connectd to the inner tube by a heated supply duct and a return duct; the casing also housing a powered fan for circulating the curing media inside the closed circuit, and the circuit being externally chargeable via an inlet valve.

Abstract: A mould particularly as used in the manufacture of a product from elastomeric material which is required to be heated.Preferably the heating is carried out by means of an electric current which may be induced electromagnetically.The product may be a tire.

Abstract: A pop-up, rotating nozzle in a tire curing press provides for dispersed and uniform introduction of fluid media into the upper containment portion of a curing and shaping bladder during tire cure and cooling, and yet allows for relatively close spacing of upper and lower bladder clamps such as during bladder insertion and stripping operations. The nozzle has an outlet head in communication with the interior of the bladder and a supply stem mounted in a lower bladder clamp and porting assembly of the press for both axial and rotational movement. The nozzle is movable against a spring biasing force by the upper bladder clamp to a lowermost retracted position which allows the bladder clamps to be axially spaced apart a distance substantially less than their axial spacing during cure.

Abstract: The apparatus utilizes a mandrel in a substantially ring or cylindrical shape about which is disposed inwardly pressure supplying means, an annular cavity disposed between the mandrel and pressure means, and means for supplying heat to the mandrel to initiate its thermal growth during curing of the belting. The metal of the mandrel has a high coefficient of thermal expansion which during use applies radial outward pressure against the belt body being cured.