| 摘要 |
The invention relates to a clamping unit for an injection molding machine, comprising a fixed platen (1), a support platen (3) and a moving platen (2), which is arranged between the fixed platen (1) and the support platen (3) for back and forth movement, wherein the moving platen (2) is supported against the support platen (3) for opening and closing movements through intervention of an opening and closing mechanism (4), and there is provided at least one pulling means (6) between the support platen (3) and the fixed platen (1) to allow a buildup of the clamping force between the fixed (1) and the moving (2) platens. In accordance with the invention, it is proposed that the opening and closing mechanism is configured as crank drive (4) with at least one crank disk (9) which is caused to rotate by a drive (32) and connected to the support platen (3) via a connecting rod (11') of first type and to the moving platen (2) via a connecting rod (11 ") of second type, wherein at least one connecting rod of one type (11', 11") is articulated in eccentric relationship to the rotatably driven crank disk (9).
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