Compression mold
AssigneeSacmi Cooperativa Meccanici Imola Societa' Cooerativa
InventorsStefano Bergami, Davide Penazzi
Life of this patent
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Abstract
A mold is provided for forming caps for closing containers by compression molding doses of plastic material, where a bottom wall of the cap, or at least one portion of the bottom wall is very thin. The mold includes two half-molds axially movable towards each other which assume an end closed position without a dose. A tubular element is slidable around the second half-mold and partially defines the cavity. The tubular element contacts an axial abutment of the first half-mold at one side and an axial end stop of the second half-mold at the other side to prevent hard contact between the half-molds.
Claims9
A mold for compression molding doses of plastics comprising:
- first and second half molds that are axially movable with respect to one another between an open position for inserting at least one dose of plastics between said half molds, a non-end closed position in which at least one dose of plastics is pressed in a cavity bounded at least partially by said first and second half molds, and an end closed position in which said cavity has a volume that is less than in said non-end closed position in the absence of a dose of plastics;
- a tubular element arranged around said second half mold and axially slidable with respect thereto, wherein when said first and second half molds are in said non-end closed position, said tubular element at least partially bounds said cavity and is arranged in contact with an axial abutment arranged on said first half mold and when said first and second half molds are in said end closed position, said tubular element is arranged on one side in contact with said axial abutment and on the other side in contact with an axial end stop arranged on said second half mold.
Dependencies are inferred from the claim text.