FIELD: moulding.
SUBSTANCE: invention relates to female mold, made with possibility of joint operation with male mold to produce concave object. Female mold has molding cavity (3) inside which can be formed concave object containing annular molding element (4, 104, 204), passing around the axis (Z) and limiting molding cavity (3) about the axis (Z), plate element (5, 105, 205), which limits molding cavity (3) across the said axis (Z) and has reference surface (7), extending transversely to said axis (Z) outside molding cavity (3), and peripheral annular element (15, 115), at least partially surrounding annular molding element (4, 104, 204). Forming annular element (4, 104, 204) rests against the first part of reference surface (7) of plate-like element (5, 105, 205). Circular peripheral element (15, 115) rests against the second part of reference surface (7) of plate element (5, 105, 205).
EFFECT: technical result is improved accuracy of articles.
22 cl, 11 dwg
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