US 7,597,550 B2 · Molding apparatus having ejector sleeve and ejector pin

Abstract

An molding apparatus includes a core having a recessed part corresponding to a protruding part of a molded article, an ejector pin movably provided in the core to eject the molded article, an ejector sleeve movably provided in the core to push the protruding part of the molded article, and an ejector actuating part to move the ejector pin and the ejector sleeve together to a separation position where the protruding part of the molded article is separated from the recessed portion of the core, to bring the ejector sleeve into a stop position so that the ejector sleeve does not protrude from the core, and to move the ejector pin from the separation position to a removal position where the molded article is spaced apart from the core by a predetermined distance. Accordingly, the molding apparatus is capable of preventing damage caused on an ejector sleeve.

Claims15

Dependent claims

A molding apparatus, comprising:

a core having a recessed part corresponding to a protruding part of a molded article;
an ejector pin movably provided in the core to eject the molded article;
an ejector sleeve movably provided in the core to push the protruding part of the molded article;
and
an ejector actuating part to move the ejector pin and the ejector sleeve together to a separation position where the protruding part of the molded article is separated from the recessed part of the core, to bring the ejector sleeve to a stop position so that the ejector sleeve does not protrude from the core, and to move the ejector pin from the separation position to a removal position where the molded article is spaced apart from the core by a predetermined distance.

2 more elements

A molding apparatus, comprising:

a core having a first core part and a second core part;
a first ejector to correspond to the first core part;
a second ejector to correspond to the second core part;
and
an ejector actuating part to move the first ejector and the second ejector between an original position and a separation position at which the first ejector does not protrude from the core, and to move the second ejector between the separation position and a removal position at which a molded article is removed from the molding apparatus during controlling the first ejector to be remained in the separation position, wherein:
the core comprises a first hole and a second hole through which the first ejector and the second ejector pass, respectively, in an ejection direction;
the first ejector comprises an end disposed adjacent to the first core part and another end connected to the ejector actuating part;
and
the second ejector comprises an end disposed adjacent to the second core part and another end connected to the ejector actuating part.

6 more elements

Dependencies are inferred from the claim text.

Molding apparatus having ejector sleeve and ejector pin

Life of this patent

Molding apparatus having ejector sleeve and ejector pin

Life of this patent

Abstract

Claims15