| 摘要 |
The invention relates to a moulding core (2) for producing mouldings made of plastic or low-melting metal alloys which are provided with at least one recess that is open toward the interior thereof and extends in the direction of the outer wall. The moulding core (2) comprises a plurality of segments (7), which are arranged in succession in a row of segments in the circumferential direction and which can be moved from a working position to a release position by means of an adjustment apparatus (8). The adjustment apparatus (8) comprises a common supporting body (19) with supporting elements (18) of rod-like form which are arranged fixed thereon and are also arranged in succession in the circumferential direction. A clearance (28) is formed between supporting elements (18) arranged in direct succession. Each of the individual segments (7) has a supporting face (17) on a side facing away from the outer end face (9), wherein the supporting face (17) of each of the segments (7) is supported in the radial direction on in each case a contact surface (46) of the supporting elements (18) in the working position. |
