Flexible tension device making tension plate grip yarn/filament by attracting magnetic cushion

The utility model relates to a flexible tension unit that the mutually attracting magnetic cushions enable the tension pulley to clamp the yarn or silk. The characteristics of the utility model consists of a movable tension pulley (1), a fixed tension pulley (2), a tension pulley retaining ring (3), a center shaft (5), a cylinder (7), a rotary knob apparatus (8), a fixed magnetic cushion (9), a movable magnetic cushion (10) and a tensioner bracket (11). The center shaft (5) is transversely installed on the tensioner bracket (11) with the right end being fixed and the left end being suspended, the tension pulley retaining ring (3) is sleeved on the center shaft (5), and the fixed tension pulley (2) and the movable tension pulley (1) are separately sleeved on the left and right of the center shaft (5). The fixed tension pulley (2) is permanently connected with the right end of the tension pulley retaining ring (3), the movable magnetic cushion (10) is positioned at the right of the movable tension pulley (1), t