Abstract: A hoop material cutter, which comprises a movable blade secured to a bottom surface of a ram movable reciprocally while rocking, a fixed blade secured to a top surface of a base plate, and a hopper for guiding a hoop material between the movable blade and the fixed blade, cuts the hoop material while allowing the movable blade to move toward and away from the fixed blade in accordance with an action of the ram. In this hoop material cutter, cylindrical guide pins are rotatably fitted in the base plate via blocks which are detachable in a horizontal direction from the base plate and each having both ends chamfered, and a part of the cylindrical surface of each guide pin protrudes sideways of the associated block so that the end faces of the movable blade are guided by the protruding portions.

Abstract: In a hoop material cutter having a movable blade driven by an eccentric cam to effect swirl or rocking motion of the movable blade, the hoop material is fed in a direction opposite to the moving direction of the movable blade. The space between the movable blade and the housing is enclosed, and the feeding hopper for feeding the hoop material is mounted to undergo movement with the movable blade.