| 摘要 |
Apparatus for fastening together layers of intermediate fabric material to form a stack (2) includes a first knife blade (4) having a forward cutting edge and a longitudinal slot. A second flat knife blade (10) is in sliding contact with the blade (4). The blade (10) is stationary, and its forward cutting edge is located at a pre-selected distance above the upper surface of the stack (2). The blade (4) is advanced to cut through the stack (2) until the slot (8) is clear of the lower face of the stack. A pre-selected length of a tow (18) is threaded through the slot (8), to extend equal distances each side of the blade (4), which is then withdrawn until the cutting edge (12) of the blade (10) cuts the tow loop to form two independent tow pieces (20, 22). These pieces (20, 22) are each folded back onto the upper and lower faces (13, 16) of the stack (2) which is then cured. <IMAGE> |
