US 5,494,434 A · Injection molding mold for producing a fitting having an annular groove

Abstract

Described is an injection molding mold for the production of fittings from thermoplastic material which have at least one annular groove at the inside, comprising a mold core which is formed in the region of the annular groove of the molding by segments (8, 8') which can be moved inwardly to such an extent that the mold core can be moved out of the annular groove in the axial direction, wherein the inward and outward movement of the segments (8, 8') is produced by rotation of a control shaft (11) and wherein each of the segments (8, 8') which are only radially movably guided in a stationary guide disk (15) is provided with a projection (14) which engages into a guide slot (13, 13') in a control disk (12) which is fixedly connected to the control shaft (11).

Claims9

Dependent claims

An injection molding mold for producing from thermoplastic material a fitting having in at least one internal annular groove, said mold comprising:

a mold core including segments to form the annular groove, said segments being movable inwardly to an extent sufficient to enable said mold core to be moved in an axial direction out of the formed annular groove;
a stationary guide disk, said segments being guided for radial movement only by said guide disk;
a rotatable control shaft having fixedly connected thereto a control disk;
each said segment having a projection extending into a guide slot in said control disk;
and
rotation of said control shaft and said control disk causing radially inward and outward movement of said segments.

3 more elements

Dependencies are inferred from the claim text.

Injection molding mold for producing a fitting having an annular groove

Life of this patent

Injection molding mold for producing a fitting having an annular groove

Life of this patent

Abstract

Claims9