Addressed is the object of improving an unwinding performance of a glass direct roving at an end surface. A method of manufacturing a glass direct roving includes winding a glass strand into a cylindrical shape while traversing the glass strand. In the winding, the glass strand is wound traversing the glass strand under the conditions that a wind order of the crosswinding is or greater, and an interval parameter, which is the smaller value among b and Ab, is from (A/2)*(A/4)* to (A/2)*1, where A is the wind order, (A/2)* is a maximum integer no greater than the wind order, (A/4)* is a maximum integer no greater than the wind order, and a mixed fraction a+(b/A) is used to express a cyclewind of the crosswinding.

The present invention is an autonomous artificial muscle fiber coiler system. The system comprises a motor-driven spool holder for feeding monofilament material under controlled tension, a pulley system to regulate tension dynamically, and a bevel gear assembly with synchronized large bevel gears and a smaller third bevel gear to twist the monofilament into a desired helical structure. Two mirrored or parallel motor drivers, controlled by a power supply unit, vary the speed and direction of the gears to achieve customized twist density. The system is designed to produce consistent and precise coiled fibers for applications in robotics, prosthetics, and advanced materials. The coiler can also produce graded fibers by dynamically adjusting tension and twist density. The system supports multiple materials, including nylon, polyester, Kevlar, and conductive polymers.

The present invention is an autonomous artificial muscle fiber coiler system. The system comprises a motor-driven spool holder for feeding monofilament material under controlled tension, a pulley system to regulate tension dynamically, and a bevel gear assembly with synchronized large bevel gears and a smaller third bevel gear to twist the monofilament into a desired helical structure. Two mirrored or parallel motor drivers, controlled by a power supply unit, vary the speed and direction of the gears to achieve customized twist density. The system is designed to produce consistent and precise coiled fibers for applications in robotics, prosthetics, and advanced materials. The coiler can also produce graded fibers by dynamically adjusting tension and twist density. The system supports multiple materials, including nylon, polyester, Kevlar, and conductive polymers.

A processing equipment is provided, in which a carrier structure with at least one guide pin is arranged in a ring center area of a ring body of a frame, and a wire-supply device disposed on the ring body can supply wires to the center structure, so the wires can be woven around the guide pin and formed on the carrier structure so that the wire covers the carrier structure to form an exposed area around the guide pin.

Wire rollers may include a wire roller assembly including a rotatable roller assembly shaft. A first roller assembly plate may be on the roller assembly shaft and a second roller assembly plate may be on the roller assembly shaft. At least one of the first roller assembly plate and the second roller assembly plate may be selectively removable with respect to the roller assembly shaft. A roller space may be between the first roller assembly plate and the second roller assembly plate. A wire roller disk may be in the roller space and engaged for rotation by the roller assembly shaft. The wire roller disk may be configured to releasably retain at least one end of a wire segment. A roller assembly actuator may operably engage the roller assembly shaft of the wire roller assembly for rotation of the roller assembly shaft and the wire roller disk.

Wire rollers may include a wire roller assembly including a rotatable roller assembly shaft. A first roller assembly plate may be on the roller assembly shaft and a second roller assembly plate may be on the roller assembly shaft. At least one of the first roller assembly plate and the second roller assembly plate may be selectively removable with respect to the roller assembly shaft. A roller space may be between the first roller assembly plate and the second roller assembly plate. A wire roller disk may be in the roller space and engaged for rotation by the roller assembly shaft. The wire roller disk may be configured to releasably retain at least one end of a wire segment. A roller assembly actuator may operably engage the roller assembly shaft of the wire roller assembly for rotation of the roller assembly shaft and the wire roller disk.