Abstract: The capping head body is a body of a capping head used for the capping head that attaches a cap having a topped cylindrical shape to a mouthpiece portion of a can having a bottomed cylindrical shape, the capping head body including: a body main portion having a cylindrical shape; a spindle attachment portion disposed inside the body main portion and attached to a spindle; and a swing shaft housing portion disposed between an outer peripheral portion and an inner peripheral portion of the body main portion, in which the swing shaft housing portion is disposed around a periphery of the spindle attachment portion, and has a through-hole into which a swing shaft that swings a forming roller toward a peripheral wall of the cap is inserted, and the through-hole penetrates the body main portion in an up-down direction.

Abstract: The capping head body is a body of a capping head used for the capping head that attaches a cap having a topped cylindrical shape to a mouthpiece portion of a can having a bottomed cylindrical shape, the capping head body including: a body main portion having a cylindrical shape; a spindle attachment portion disposed inside the body main portion and attached to a spindle; and a swing shaft housing portion disposed between an outer peripheral portion and an inner peripheral portion of the body main portion, in which the swing shaft housing portion is disposed around a periphery of the spindle attachment portion, and has a through-hole into which a swing shaft that swings a forming roller toward a peripheral wall of the cap is inserted, and the through-hole penetrates the body main portion in an up-down direction.

Abstract: A capping head includes a body centered on a center axis, a cam follower configured to roll on an outer peripheral surface of a cone cam, a forming roller configured to move in a radial direction as the cam follower moves in the radial direction, and a biasing member configured to bias the cam follower and the forming roller toward a radially inner side, a plurality of the forming rollers include a plurality of thread forming rollers, and at least one tuck under forming roller, and the body has a body recess portion depressed downward from an upper surface of the body and configured to accommodate at least a lower end portion of the cone cam.