The invention provides a
nonwoven fabric felt unrolling frame which can keep constant tensioning force with a
nonwoven fabric knitting unit during unrolling of nonwoven fabrics. The
nonwoven fabric felt unrolling frame comprises two wall plates of the felt unrolling frame, and a tensioning rod, a felt guide roller and two pneumatic tensioning shaft are connected between the two wall plates. A main shaft head is arranged at one end of the pneumatic tensioning shaft while an auxiliary shaft head is arranged at the other end of the pneumatic tensioning shaft, and a safety
flange is mounted on the inner side of each of the main shaft head and the auxiliary shaft head and on the pneumatic tensioning shaft. Bearing blocks are mounted on the inner wall of the two wall plates of the felt unrolling frame corresponding to the left end and the right end of the pneumatic tensioning shaft, the main and auxiliary shaft heads of the pneumatic tensioning shaft are mounted in bearings of the bearing blocks, a fixed plate is mounted outside the auxiliary shaft head, and the main shaft head penetrates through the bearing blocks to extend outside the wall plates. A retaining belt
pulley spacer ring is sleeved on a portion, close to the end, of the main shaft head. A
brake wheel is mounted at the end of the main shaft head through bolts, and a supporting column horizontally extends outwards on the
wall plate at the mounting end of the
brake wheel and is positioned below the
brake wheel. A brake belt is sleeved on the brake wheel, a connecting plate is fixed to the end of the brake belt, a hook is fixed to the bottom end of the connecting plate through a hook screw, a hanging plate is hung at the bottom of the hook, and a counter weight is placed on the hanging plate.