| 摘要 |
In a needle punching machine, a fiber batt to be needled is confined in the needling zone between a fabric-reinforced plastic foil and an endless, moving belt carrying spaced carrier elements, such as pins. The barbed needles of the machine pass through the foil into the fiber batt until their points project into the spaces between the carrier elements. The feed zone of the machine tapers toward the needling zone between the belt and the foil, and the foil is prevented by an adjustable gate member from yielding under the pressure of the batt. A backing member whose contact face has two angularly offset portions is arranged behind the belt and may be shifted in the direction of batt movement through the needling zone. |
