A sewing machine detects a sewing status after a change, when the sewing status changes. When the sewing machine receives a status request requesting the sewing status, from an information terminal via a LAN, the sewing machine transmits, to the information terminal, sewing status information that accords with the detected sewing status. When the detected sewing status satisfies a predetermined condition, the sewing machine transmits a notification request, which includes identification information identifying the information terminal, to a server, in order to cause the server to transmit, to the information terminal, a notification command instructing a push notification in the information terminal.

A sewing machine detects a sewing status after a change, when the sewing status changes. When the sewing machine receives a status request requesting the sewing status, from an information terminal via a LAN, the sewing machine transmits, to the information terminal, sewing status information that accords with the detected sewing status. When the detected sewing status satisfies a predetermined condition, the sewing machine transmits a notification request, which includes identification information identifying the information terminal, to a server, in order to cause the server to transmit, to the information terminal, a notification command instructing a push notification in the information terminal.

A sewing machine includes: a pattern data acquisition unit that acquires pattern data in which information on an object corresponding to a unit from a sewing start point to a ravel preventing point or a thread trimming point and information related to a required bobbin thread amount required for sewing the object are associated with each other and registered; a bobbin thread remaining amount acquisition unit that acquires a bobbin thread remaining amount; a determination unit that determines whether or not the object is sewable, based on a difference between a required bobbin thread amount of the object according to the pattern data and the bobbin thread remaining amount; and a decision unit that, based on a determination result of the determination unit, decides whether or not the object is set as a sewing target.

A sewing machine includes: a pattern data acquisition unit that acquires pattern data in which information on an object corresponding to a unit from a sewing start point to a ravel preventing point or a thread trimming point and information related to a required bobbin thread amount required for sewing the object are associated with each other and registered; a bobbin thread remaining amount acquisition unit that acquires a bobbin thread remaining amount; a determination unit that determines whether or not the object is sewable, based on a difference between a required bobbin thread amount of the object according to the pattern data and the bobbin thread remaining amount; and a decision unit that, based on a determination result of the determination unit, decides whether or not the object is set as a sewing target.

An embroidery system includes a coloring device to color a thread. The embroidery system includes an embroidery device to perform embroidery of an embroidery design and underlay stitching. The embroidery device uses the thread colored by the coloring device for at least one of the embroidery of the embroidery design or the underlay stitching. The embroidery system includes circuitry to: create data of the embroidery design and the underlay stitching according to embroidery image data; create color data for coloring the thread to be used for coloring the at least one of the embroidery of the embroidery design or the underlay stitching; acquire roughness data representing roughness impression of the embroidery image data; and change an embroidery density of the embroidery design according to the roughness data.

An embroidery system includes a coloring device to color a thread. The embroidery system includes an embroidery device to perform embroidery of an embroidery design and underlay stitching. The embroidery device uses the thread colored by the coloring device for at least one of the embroidery of the embroidery design or the underlay stitching. The embroidery system includes circuitry to: create data of the embroidery design and the underlay stitching according to embroidery image data; create color data for coloring the thread to be used for coloring the at least one of the embroidery of the embroidery design or the underlay stitching; acquire roughness data representing roughness impression of the embroidery image data; and change an embroidery density of the embroidery design according to the roughness data.

The operation information acquisition device includes the external detection device which is provided on the outer side of the main body frame of the sewing machine and detects the state change of the operating member that performs the periodic operation at the same cycle as the up-down movement operation of the sewing needle, the operation information acquisition device acquires operation information based on detection result of the external detection device. The operation information acquisition device can acquire the operation information such as the “number of stitches”, the “operating hours”, the “sewing speed”, and the “number of times of thread cutting”.

A multi-needle sewing machine includes a plurality of needle bars, a needle plate, a needle bar case, a needle bar drive mechanism, a needle bar case movement mechanism, a mounting portion, a frame movement mechanism, a processor, and a memory. The memory is configured to store computer-readable instructions that, when executed by the processor, instruct the processor to perform processes. The processes include identification processing of identifying a position of the needle bar case in the arrangement direction, in accordance with detection of a retraction command causing the mounting portion to be moved to a retracted position, setting processing of setting the retracted position of the mounting portion on the basis of the identified position of the needle bar case in the arrangement direction, and movement processing of controlling the frame movement mechanism to move the mounting portion to the set retracted position.

A multi-needle sewing machine includes a plurality of needle bars, a needle plate, a needle bar case, a needle bar drive mechanism, a needle bar case movement mechanism, a mounting portion, a frame movement mechanism, a processor, and a memory. The memory is configured to store computer-readable instructions that, when executed by the processor, instruct the processor to perform processes. The processes include identification processing of identifying a position of the needle bar case in the arrangement direction, in accordance with detection of a retraction command causing the mounting portion to be moved to a retracted position, setting processing of setting the retracted position of the mounting portion on the basis of the identified position of the needle bar case in the arrangement direction, and movement processing of controlling the frame movement mechanism to move the mounting portion to the set retracted position.

An integrated system for treating a thread and using the treated thread, comprising: a thread treatment machine for treating a thread or portions thereof; a thread applicator configured for using the treated thread such as a stitching machine of 3D printer; at least one mechanism for collecting and trimming thread portions; and a control unit, configured for controlling at least the thread treatment machine, the thread applicator and the collecting and trimming mechanism and for coordinating the treatment of the thread with the operation of the thread applicator, wherein the control unit is further configured for controlling the collecting and trimming mechanism for collecting untreated thread edge portions for allowing using only treated thread portions.