Closing unit for an injection moulding machine
AssigneeEttlinger Kunststoffmaschinen GmbH
InventorMartin Ganz
Life of this patent
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Abstract
A closing unit with rigidly mounted supporting rails (2), a stationary (6) and a movable (12) clamping plate, has a pivot bearing (14, 15) behind each of these clamping plates (6, 12). A closing drive (23) is hinged in these pivot bearings (14, 15) so that it can freely move between said pivot bearings (14, 15) and the closing forces exercised by the closing drive (23) can exercise no bending moment on the machine frame (2, 3).
Claims11
Closing unit without bars for an injection moulding machine having at least one closing drive (23) comprising two counter-moving displaceable components, with supporting rails (2) being mountable on a machine base (3) for a stationary and a glidable clamping plate (6, 12) for clamping one or more first and second form plates (17, 18), which stationary clamping plate (6) is rigidly connected to the supporting rails (2) and which displaceable clamping plate (12) is glidably supported on the supporting rails (2), whereby the stationary clamping plate (6) is connected to one of the two components (24, 25) of the closing drive (23) by means of a pivot bearing (14), characterized in that the glidable clamping plate (12) is connected to the other of the two components (24, 25) of the closing drive (23) by means of at least one pivot bearing (15) in such a manner that the closing drive (23) is secured only in these pivot bearings (14, 15), and thus the closing forces of the closing drive (23) only act upon the clamping plates (6, 12) via these pivot bearings (14, 15), and no bending moments are transmitted to the supporting rails (2) or to the machine base (3).
Dependencies are inferred from the claim text.