Split vulcanizing die

Details Split vulcanizing die Split vulcanizing die

1986-08-18

1988-02-23

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Reshaping, resizing or vulcanizing means for tire, tire...

Sectional female mold including locking or clamping assembly...

425 54, 425 56, B29C 3500

Patent

active

047267496

ABSTRACT:
A split vulcanizing die comprising lower and upper molding rings with the upper ring movable relative to the lower molding ring. A side molding ring composed of a plurality of arc-shaped segments is movable in the radial direction of the die, so that when all the segments are moved to their radially innermost positions, the side molding ring is placed in tight contact with the outside circumferential surfaces of the upper and lower molding rings moved toward each other. An outer ring having an inside circumferential truncated-cone-shaped surface is provided outside the side molding ring so that said outer ring can be moved in the axial direction of said die. Oblique dovetail couplings conjoin the segments to the outer ring. The oblique planar surfaces are provided on the circumferential outside of the segments. Intermediate blocks corresponding to the segments removably attached to the truncated-cone-shaped surface of the outer ring and the inside surfaces of the intermediate blocks are planar surfaces which are placed in slip contact with planar surfaces which face the blocks.

REFERENCES:
patent: Re27513 (1972-10-01), Pacciarini et al.
patent: 3782871 (1974-01-01), Turk
patent: 3897181 (1975-07-01), Madaschefsky
patent: 3901632 (1975-08-01), Prosdocimi
patent: 3910735 (1975-10-01), Caretta
patent: 4515541 (1985-05-01), Salvadori
patent: 4580959 (1986-04-01), Pissorno et al.

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