| 摘要 |
The machine has a power transmission device (2) driving a displacement element (6). The device has at least one spring (4) for energy accumulation, and the element is driven by the energy accumulated in the spring only. The machine also has a holder unit for the component (8) to be formed, both machine and unit forming an open system. The spring is a leaf, helical, or spiral spring, and the displacement element is a roller or a ball, or sections thereof. The power transmission device is born on rotating drive element, and the tensioned spring moves along a curved wall, which is mainly parallel to the rotary axis.
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