| 摘要 |
The present invention refers to a mechanical device which includes a unit (module) of a machine for transplanting seedlings at bareroot in polyethylene film-mulch soils. The operation principle of the machine is based on a module, which is brought into contact with soil for a predetermined time and which has mechanisms that perform in an automatic manner operations for opening and fastening a plastic cut, locating the seedling and the filler, and compacting the space around the same. The seedling feeding is manually performed using an operator by each row. The modules are attached together (articulated), thereby forming a train of interconnected links that are guided in the machine frame and actuated by the displacement thereof. The relative displacement speed between the module and the frame must be equal to the displacement speed of the machine and in an opposite direction so as to remove the relative motion between the module and the soil. The relative motion between the module and the machine frame is used as a source for sequentially driving the mechanisms of the module upon displacing said module through a track system of fixed guides attached to the frame, which by means of ball bearings control the position of the mobile elements of the mechanisms pertaining to the transplanting unit. |
