| 摘要 |
<p>A production system serves to automatically cast hollow bodies, in particular of concrete, in a casting mould, which comprises an inner mould (2), an outer mould (1), a bottom ring (3), and a top ring (4). Loose top rings (4) are used for the production, which remain on the top end of the pipe until the concrete has set sufficiently, to ensure that the shape and tolerances of the top end are retained after casting. The system moreover comprises a clamping chuck (15) for retaining the top ring during casting. The clamping chuck is equipped with clamping means comprising a ring-shaped flexible hose and a slotted spring ring. When the hose is provided with compressed air from a compressed air source, it clamps the spring ring together around a gripping ring on the top ring.</p> |
