Mold apparatus for simultaneously molding two cross-linked annular parts
AssigneeYKK Corporation
InventorMasao Wakabayashi
Life of this patent
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Abstract
In a mold apparatus for simultaneously molding two cross-linked annular parts, having first through fourth split cores arranged in a cross pattern, firstly the adjacent first and second split cores are moved by first split core moving means as guided on fixed dies along a first sliding passageway perpendicularly in the mold opening and closing direction, and then the adjacent third and fourth split cores are moved toward and away from part of movable dies simultaneously when the part of the movable dies is moved toward and away in the mold opening and closing direction by guide means. At the same time, the third and fourth split cores are moved away from the molded product along a second sliding passageway by a link mechanism composed of arms.
Claims5
A mold apparatus for simultaneously molding two mutually movably cross-linked annular parts, comprising:
- (a) first, second, third and fourth split cores arranged in a cross pattern for forming connecting portions of the two annular parts;
- (b) a number of fixed dies having a first sliding passageway for slidingly guiding said first and second split cores, which are adjacent to each other, in a mold opening and closing direction in a cross pattern at a predetermined angle;
- (c) a number of movable dies having a second sliding passageway for slidingly guiding said third and fourth split cores, which are adjacent to each other, in mold opening and closing direction in a cross pattern at a predetermined angle;
- (d) first split core moving means operable in synchronism with the opening and closing movements of said movable dies for sliding said first and second split cores along said first sliding passageway;
- (e) second split core moving means operable in response to the opening and closing movements of said movable dies for sliding said third and fourth split cores along said second sliding passageway;
- and
- (f) said second split core moving means being a link mechanism composed of two arms by which part of said movable dies are connected to said third and fourth split cores, respectively.
Dependencies are inferred from the claim text.