A sewing machine for hem includes a turn-back device provided in front of a needle location position on a sewing machine bed, the turn-back device turning back an edge part of cloth into a state of being folded one above the other, and then feeding the turned-back cloth. In front of the turn-back device, a feed belt and a cloth presser foot are arranged opposite to each other with a cloth feeding path in between. By virtue of operation of a rotary solenoid performed on the basis of a detection result of a detector arranged in front of the opposing portion, the cloth presser foot is raised and lowered and thereby holds the cloth in cooperation with the feed belt so as to exert a movement force in the right and left directions onto the cloth.

A presser foot of a sewing machine includes: a presser main body that presses a cloth; a guide base provided to the presser main body so as to form a single unit, and configured to guide a ribbon to be sewn to the cloth; a right guide and a left guide configured as members that are provided such that they can be relatively moved with respect to the guide base, that guide a position of the ribbon in the width direction, and that are arranged symmetrically with a position at which a sewing needle moves in a vertical direction as a base position; and an adjustment screw, a right guide bush, and a left guide bush, configured as a linking portion that links the movements of the right guide and the left guide such that they are positioned symmetrically with respect to the base position at all times.

A presser foot of a sewing machine includes: a presser main body that presses a cloth; a guide base provided to the presser main body so as to form a single unit, and configured to guide a ribbon to be sewn to the cloth; a right guide and a left guide configured as members that are provided such that they can be relatively moved with respect to the guide base, that guide a position of the ribbon in the width direction, and that are arranged symmetrically with a position at which a sewing needle moves in a vertical direction as a base position; and an adjustment screw, a right guide bush, and a left guide bush, configured as a linking portion that links the movements of the right guide and the left guide such that they are positioned symmetrically with respect to the base position at all times.

A manipulation device for material webs by a sewing machine is disclosed having at least one transverse conveying device including a rolling support unit on which freely rotatable guiding rollers are arranged. The rolling support unit includes a joint chain with a straight pressing portion on which a plurality of guiding rollers is supported.

A manipulation device for material webs by a sewing machine is disclosed having at least one transverse conveying device including a rolling support unit on which freely rotatable guiding rollers are arranged. The rolling support unit includes a joint chain with a straight pressing portion on which a plurality of guiding rollers is supported.

Machine for sewing envelopes into pouches, in correspondence with an opening delimited by two free overlapping flaps, the machine includes a support base; a sewing head, mechanically mounted on the support base, configured to make a sewing line along a sewing direction; retaining means for retaining the free flaps of said envelope like a bag; first movement means for realizing a relative movement between said sewing head and the holding means along a first movement direction substantially parallel to the sewing line; second movement means for moving the sewing head and/or holding means at least along a second movement direction orthogonal with respect to the first movement direction; at least a first sensor configured to detect an extremal edge of the free edges; at least one electronic control unit for generating the relative motion between the support base and/or the holding means along the second movement direction.

A quilting frame unit for supporting a quilt core to be sewn by a quilting machine includes a frame support structure, a frame assembly, and quilt core retention members. The frame support structure is adapted to support a machine carriage assembly that provides for lateral and longitudinal movement of the quilting machine. The frame assembly is affixed to the frame support structure. The quilt core retention members are configured to selectively couple with the frame assembly with the quilt core draped over to retain the quilt core to the frame assembly.

A hopping foot assembly for a sewing machine having a needle comprises a hopping foot base and a hopping foot arm. The hopping foot base is shaped to include a needle opening that extends axially therethrough relative to an axis. The hopping foot arm extends from the hopping foot base. The hopping foot arm is configured to be coupled to the sewing machine to fix the hopping foot base relative to the sewing machine.

A hopping foot assembly for a sewing machine having a needle comprises a hopping foot base and a hopping foot arm. The hopping foot base is shaped to include a needle opening that extends axially therethrough relative to an axis. The hopping foot arm extends from the hopping foot base. The hopping foot arm is configured to be coupled to the sewing machine to fix the hopping foot base relative to the sewing machine.

A system and method, for guiding a sewing operation for a sewing machine, are provided herein. One of one or more stitch objects having stitch data associated therewith may be selected. Each of the one or more stitch objects are defined by a geometric pattern. The stitch data of the one of the one or more stitch objects is analyzed to identify one or more lines forming the geometric pattern. At least a portion of a sewing material is sewn, onto the workpiece with the needle, in a direction defined by a first of the one or more lines forming the geometric pattern. A primary light source projects a first of one or more guidelines onto the workpiece. The first of the one or more guidelines corresponds to a second of the one or more lines forming the geometric pattern.