Process and apparatus for opening a pivoted cover of a spindleless spinning apparatus

摘要

The hinged cover (2) of an open-end spinning box is held in the closed position by a spring catch (8). The cover (2) is swung into the open position by an actuating cylinder (4) through a parallel linkage (31) moving an arm (3) that engages the cover at a connection (30). A further cylinder (5) assists through a short distance to overcome the resistance of the catch (8). An Independent claim is also included for a mechanism for opening a hinged open-end spinning box cover (2) that includes a assisting link (54) acting on a connection (112) on the cover (2). Preferred Features: While the cover opening action is through a linkage to amplify the motion of the actuating cylinder (4), the assisting action from the other cylinder (5) is through a direct drive rod (50). The cylinders (4, 5) can be pneumatic or hydraulic and have a common supply regulated through a single switching valve (7). The assisting cylinder (5) only acts for a duration sufficient to release the catch (8).