Apparatus for vulcanizing elastomer product
AssigneeSumitomo Rubber Industries, Ltd.
InventorsAkinori Kubota, Masaaki Ijiri, Michihito Kobayashi
Life of this patent
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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.
Claims17
An apparatus for vulcanizing an elastomeric product comprising mold means in which said elastomeric product to be vulcanized is disposed, said product having a central axis which is vertically disposed such that upper and lower interior portions of said product overlie one another, a piston gland means having first supply passage means for supplying a heating medium, junction chamber means defining an annular junction chamber, said first supply passage means communicating with the interior of said junction chamber, said junction chamber means having an outer wall which separates said junction chamber from the interior of said product, nozzle means in said outer wall directing heating medium from said junction chamber into the interior of said product in a downward direction toward said lower portion of said product, enclosure means defining an enclosure overlying said junction chamber, said piston gland means having a second supply passage means for supplying a pressurizing medium, said second supply passage means communicating with said enclosure means to supply said pressurizing medium to said enclosure, said enclosure means having a top wall and a bottom wall, said enclosure means also having a weir wall extending upwardly from said bottom wall, said weir wall having an upper end spaced from said top wall to thereby define a weir passage between said upper end of said weir wall and said top wall of said enclosure means such that pressurizing medium passes from said enclosure to the upper portion of the interior of said product through said weir passage.
An apparatus for vulcanizing an elastomeric product comprising mold means in which said elastomeric product to be vulcanized is disposed, said product having a central axis which is vertically disposed such that upper and lower interior portions of said product overlie one another, a piston gland means having first supply passage means for supplying a heating medium, junction chamber means defining an annular junction chamber, said first supply passage means communicating with the interior of said junction chamber, said junction chamber means having an outer wall which separates said junction chamber from the interior of said product, nozzle means in said outer wall directing heating medium from said junction chamber into the interior of said product in a downward direction toward said lower portion of said product, enclosure means defining an enclosure overlying said junction chamber, said enclosure means having an outer side opening up to said upper interior portion of said product, said piston gland means having an upper end, casing means mounted on said upper end of said piston gland means to define a casing compartment, said casing means being disposed within said enclosure means, second supply passage means in said piston gland means communicating with said casing compartment to supply a pressurizing medium to said casing compartment, said casing means having casing nozzle means for directing pressurizing medium from said casing compartment into said enclosure means such that pressurizing medium passes from said enclosure to said upper interior portion of said product.
An apparatus for vulcanizing an elastomeric product comprising mold means in which said elastomeric product to be vulcanized is disposed, said product having an axis which is vertically disposed such that upper and lower interior portions of said product overlie one another, a centrally disposed bag well means having a central passage, heating medium supply means disposed radially outwardly of said central passage for supplying a heating medium, said heating medium supply means having discharge means for discharging said heating medium downwardly toward said lower interior portion of said product, pressurizing medium supply means separate from said heating medium supply means disposed outwardly of said central passage for supplying a pressurizing medium, said pressurizing medium supply means having nozzle means for discharging said pressurizing medium upwardly so that said pressurizing medium passes to the upper interior portion of said product.
An apparatus for vulcanizing an elastomeric product comprising mold means in which said elastomeric product to be vulcanized is disposed, said product having an axis which is vertically disposed such that upper and lower interior portions of said product overlie one another, a centrally disposed bag well means, heating medium passage means in said bag well means, first nozzle means on said heating medium passage means for discharging heating medium downwardly toward said lower interior portion of said product, pressurizing medium passage means separate from said heating medium passage means in said bag well means, and second nozzle means on said pressurizing medium means for discharging pressurizing medium upwardly to pass to the upper interior portion of said product.
Dependencies are inferred from the claim text.