A stitch distribution control system for a tufting machine for controlling placement of yarns being fed to the needles of the tufting machine by yarn feed mechanisms to form a desired pattern. A backing material is fed through the tufting machine at an increased stitch rate as the needles are shifted according to calculated pattern steps. A series of loopers or hooks engage and pick loops of yarns from the needles. The yarn feed mechanisms further can be controlled so that selected loops of yarns can be back-robbed so as to be hidden from view in the finished patterned tufted article.

An upper decoration mechanism and a sewing machine without requiring an operation of detaching the upper decoration mechanism from the sewing machine without reducing workability even when performing a double chain stitch not using a decoration thread. The upper decoration mechanism provided on a sewing machine includes an expansion retraction mechanism configured to switch a spreader between an expanded state where the spreader cooperates with needles for performing an upper decoration sewing and a retracted state where the spreader is separated from the needles.

An upper decoration mechanism and a sewing machine without requiring an operation of detaching the upper decoration mechanism from the sewing machine without reducing workability even when performing a double chain stitch not using a decoration thread. The upper decoration mechanism provided on a sewing machine includes an expansion retraction mechanism configured to switch a spreader between an expanded state where the spreader cooperates with needles for performing an upper decoration sewing and a retracted state where the spreader is separated from the needles.

A tufting machine for selectively forming tufts of yarns, including different color or type yarns, for forming patterned tufted articles such as carpets. A series of needles are reciprocated into and out of a backing material being fed through the tufting machine and are engaged by a series of gauge parts so as to pick-up loops of yarns from the needles. The gauge parts will be selectively controlled by activators to move the gauge parts to positions or elevations sufficient to pick-up or not pick-up loops of yarns from the needles. The feeding of the yarns to the needles further will be controlled to pull back the yarns not picked-up by the gauge parts, while the backing feed will be controlled to enable formation of tufts at an increased rate over the pattern stitch rate for the pattern of the tufted article being formed.

A tufting machine for selectively forming tufts of yarns, including different color or type yarns, for forming patterned tufted articles such as carpets. A series of needles are reciprocated into and out of a backing material being fed through the tufting machine and are engaged by a series of gauge parts so as to pick-up loops of yarns from the needles. The gauge parts will be selectively controlled by activators to move the gauge parts to positions or elevations sufficient to pick-up or not pick-up loops of yarns from the needles. The feeding of the yarns to the needles further will be controlled to pull back the yarns not picked-up by the gauge parts, while the backing feed will be controlled to enable formation of tufts at an increased rate over the pattern stitch rate for the pattern of the tufted article being formed.

A system and method for tufting sculptured and multiple pile height patterned articles, including controlling placement of yarns fed to the needles of the tufting machine by a yarn feed mechanism to form varying patterns includes a backing support over which the backing is fed, and which lifts/and biases the backing to a raised position. As the backing material is fed through the tufting machine, a series of loopers or hooks engage and pick loops of yarns from the needles. The yarn feed mechanism will be controlled to create a tension in selected loops of yarns, to cause the backing material to be pulled against the bias or spring force applied by the backing support toward the needle plate of the tufting machine to create tufts of different pile heights.

A system and method for tufting sculptured and multiple pile height patterned articles, including controlling placement of yarns fed to the needles of the tufting machine by a yarn feed mechanism to form varying patterns includes a backing support over which the backing is fed, and which lifts/and biases the backing to a raised position. As the backing material is fed through the tufting machine, a series of loopers or hooks engage and pick loops of yarns from the needles. The yarn feed mechanism will be controlled to create a tension in selected loops of yarns, to cause the backing material to be pulled against the bias or spring force applied by the backing support toward the needle plate of the tufting machine to create tufts of different pile heights.

A stitch distribution control system for a tufting machine for controlling placement of yarns being fed to the needles of the tufting machine by yarn feed mechanisms to form a desired pattern. A backing material is fed through the tufting machine at an increased stitch rate as the needles are shifted according to calculated pattern steps. A series of loopers or hooks engage and pick loops of yarns from the needles. The yarn feed mechanisms further can be controlled so that selected loops of yarns can be back-robbed so as to be hidden from view in the finished patterned tufted article.

A stitch distribution control system for a tufting machine for controlling placement of yarns being fed to the needles of the tufting machine by yarn feed mechanisms to form a desired pattern. A backing material is fed through the tufting machine at an increased stitch rate as the needles are shifted according to calculated pattern steps. A series of loopers or hooks engage and pick loops of yarns from the needles. The yarn feed mechanisms further can be controlled so that selected loops of yarns can be back-robbed so as to be hidden from view in the finished patterned tufted article.

A system and method for tufting sculptured and multiple pile height patterned articles, including controlling placement of yarns fed to the needles of the tufting machine by a yarn feed mechanism to form varying patterns includes a backing support over which the backing is fed, and which lifts/and biases the backing to a raised position. As the backing material is fed through the tufting machine, a series of loopers or hooks engage and pick loops of yarns from the needles. The yarn feed mechanism will be controlled to create a tension in selected loops of yarns, to cause the backing material to be pulled against the bias or spring force applied by the backing support toward the needle plate of the tufting machine to create tufts of different pile heights.