Multi-head embroidery sewing machine

A multi-head embroidery sewing machine including a plurality of machine heads each provided with a plurality of sewing mechanical components that include a needle bar driving mechanism, thread take-up lever and presser foot mechanism, said embroidery sewing machine comprising:

• individual motors provided per machine head for individually driving respective ones of the mechanical components including the needle bar driving mechanism, thread take-up lever and presser foot mechanism;
• a common motor provided for driving a plurality of rotary hooks that are disposed beneath the respective machine heads;
• and
• a transmission mechanism for transmitting rotation of said common motor to the rotary hook of each of the machine head,
• wherein at least one of the plurality of machine heads has a mechanical component attached thereto for performing decorative sewing,
• wherein said mechanical component for performing decorative sewing is intended to perform decorative sewing of a string-shaped material, and
• wherein said mechanical component for performing decorative sewing of a string-shaped material includes an orientation control mechanism for controlling an orientation of a bobbin containing the string-shaped material, and a guide mechanism for guiding the string-shaped material to a needle entry area.

A multi-head embroidery sewing machine including a plurality of machine heads each provided with a plurality of sewing mechanical components that include a needle bar driving mechanism, thread take-up lever and presser foot mechanism, said embroidery sewing machine comprising:

• individual motors provided per machine head for individually driving respective ones of the mechanical components including the needle bar driving mechanism, thread take-up lever and presser foot mechanism;
• a common motor provided for driving a plurality of rotary hooks that are disposed beneath the respective machine heads;
• and
• a transmission mechanism for transmitting rotation of said common motor to the rotary hook of each of the machine heads,
• wherein said plurality of machine heads include at least one of a first-type machine head for performing ordinary sewing and a second-type machine head equipped with a mechanical component for performing decorative sewing, and wherein the first-type and second-type machine heads are replaceably mounted to predetermined mounting positions of a machine frame.

A multi-head embroidery sewing machine including a plurality of machine heads each provided with a plurality of sewing mechanical components that include a needle bar driving mechanism, thread take-up lever and presser foot mechanism, said embroidery sewing machine comprising:

• individual motors provided per machine head for individually driving respective ones of the mechanical components including the needle bar driving mechanism, thread take-up lever and presser foot mechanism;
• a control device for individually controlling each of the individual motors per machine head;
• and
• a setting section for individually setting content of control, by said control device, of each of the motors per machine head,
• wherein said setting section sets, independently for each of the machine heads, a sewing operation trajectory of at least one of the plurality of sewing mechanical components, and
• wherein said setting section includes a storage section that stores a plurality of pieces of information for setting a plurality of different sewing operation trajectories of at least one of the plurality of sewing mechanical components, and a section that selects, per machine head, a desired sewing operation trajectory from among the plurality of different sewing operation trajectories stored in said storage section.

A sewing machine comprising:

• a support provided on a machine frame and having mounted thereon a plurality of sewing mechanical components that include a needle bar driving mechanism, thread take-up lever and presser foot mechanism, a rotary hook being disposed beneath said support;
• individual motors mounted on said support for individually driving respective ones of the mechanical components including the needle bar driving mechanism, thread take-up lever and presser foot mechanism, said support being constructed as a modulized support, said modulized support being detachably attached, as an integral unit, to the machine frame;
• and
• a positioning structure for mounting said modulized support to a predetermined position of the machine frame, said positioning structure being provided on the predetermined position of the machine frame and on said modulized support,
• wherein said positioning structure sets mounting positions, in an up-and-down direction and left-and-right direction, of said modulized support relative to the predetermined position of the machine frame.

A sewing machine comprising:

• a support provided on a machine frame and having mounted thereon a plurality of sewing mechanical components that include a needle bar driving mechanism, thread take-up lever and presser foot mechanism, a rotary hook being disposed beneath said support;
• and
• individual motors mounted on said support for individually driving respective ones of the mechanical components including the needle bar driving mechanism, thread take-up lever and presser foot mechanism, said support being constructed as a modulized support, said modulized support being detachably attached, as an integral unit, to the machine frame,
• wherein a mechanical component for performing decorative sewing is also mounted on said support, and
• wherein said mechanical component for performing decorative sewing is intended to perform decorative sewing of a string-shaped material.

A sewing machine comprising:

• a support provided on a machine frame and having mounted thereon a plurality of sewing mechanical components that include a needle bar driving mechanism, thread take-up lever and presser foot mechanism, a rotary hook being disposed beneath said support;
• and
• individual motors mounted on said support for individually driving respective ones of the mechanical components including the needle bar driving mechanism, thread take-up lever and presser foot mechanism, said support being constructed as a modulized support, said modulized support being detachably attached, as an integral unit, to the machine frame,
• wherein said support is one of, a first-type support and a second type support, said first type support having slidably mounted thereon a needle bar case having a plurality of needle bars, said second-type support having mounted thereon a mechanical component for performing decorative sewing, and wherein the first-type and second-type supports are replaceably mounted to predetermined mounting positions of the machine frame.