PURPOSE: To compute needling tracks, to indicate them and to visually test the degree of dispersion of the needling tracks when changing needling patterns each based on peripheral speeds of a rotating plate of a crankshaft and a delivery roll, and memorized needle patterns of a needle board.
CONSTITUTION: This indicator is constituted in such a way that an input 19 inputs basic patterns and applied ones both showing implanted positions of punching needles in a needle board 9 by coordinates into a memory circuit 16 and makes the circuit 16 memorize them, and that the rotational speeds of a crankshaft and a delivery roller are input into the circuit 16 to be memorized, and an arithmetic circuit 17 computes needling tracks to display them by an indicator 20 and a printer 21 prints out the result concerning the needle patterns.
OTANI MAMORU