| 摘要 |
<p>A device for producing hollow plastic bodies, especially bottles and similar containers provided with a discharge opening, comprising a lower machine part (2) and a beam like upper machine part (7). The upper machine part (7) is fitted with at least two blow mould tools (3a, 3b, 3c) which are respectively provided with a cavity (4). A number of blow mandrels and calibration mandrels (8a, 8b, 8c) corresponding to the number of blow mould tools are arranged on the beam like upper machine part which is disposed above the lower machine part (2). A blow mould tool is associated with each blow mandrel and calibration mandrel. The blow mandrels and calibration mandrels (8a, 8b, 8c) can be axially advanced in a common manner as far as the blow mould tools (3a, 3b, 3c) and inserted into the mouth (5) of a cavity (4) with the aid of the calibration area of said mandrels until an annular shoulder (9) arranged on the blow mandrels and calibration mandrels (8a, 8b, 8c) comes to rest on a surface (6) opposite the associated blow mould tool (3a, 3b, 3c). The blow mandrels and calibration mandrels (8a, 8b, 8c) are held in the upper machine part (7) in such a way that they can move freely in an axial direction within set limits. When the blow mandrels and calibration mandrels (8a, 8b, 8c) are brought forward to rest against the blow mould tools (3a, 3b, 3c), the height of the blow mandrels and calibration mandrels (8a, 8b, 8c) can be automatically and axially adjusted in comparison with the initial position thereof, counter to the resistance of a coupling means (H).</p> |
