A sewing machine includes a rotational speed determination unit configured to determine a rotational speed instruction value on the basis of information from a movement detection sensor that detects movement of a workpiece and a predetermined sewing pitch amount, an upper limit rotational speed setting unit configured to set an upper limit rotational speed value, a rotational speed control unit configured to control a rotational speed to the rotational speed instruction value and control the rotational speed to the upper limit rotational speed value when the rotational speed instruction value reaches the upper limit rotational speed value, and a sewing machine motor driven at the controlled rotational speed to operate a needle. Rotational speed control of the sewing machine motor according to a movement amount of the workpiece is executed, but the rotational speed is controlled so as not to exceed the upper limit rotational speed.

The present disclosure relates to a method of applying a sublayer in which a layer is applied on the basis of a sewing line as a unit and an apparatus thereof in making 3D clothing by computer simulation. A partial region within a pattern is designated by selecting a sewing line through a user interface, and a sublayer in which a layer is set on the basis of the sewing line is set.

The invention provides methods, equipment and apparatuses for a highly flexible assembly system. The system may include at least one item of mobile equipment, at least one mobile container and at least one manufacturing management system (MMS). Because it is so flexible, the system may allow for efficient simultaneous processing of multiple dissimilar products. The system may also accommodate manufacturing processes requiring hybrid methods.

A sewing machine includes a rotational speed determination unit configured to determine a rotational speed instruction value on the basis of information from a movement detection sensor that detects movement of a workpiece and a predetermined sewing pitch amount, an upper limit rotational speed setting unit configured to set an upper limit rotational speed value, a rotational speed control unit configured to control a rotational speed to the rotational speed instruction value and control the rotational speed to the upper limit rotational speed value when the rotational speed instruction value reaches the upper limit rotational speed value, and a sewing machine motor driven at the controlled rotational speed to operate a needle. Rotational speed control of the sewing machine motor according to a movement amount of the workpiece is executed, but the rotational speed is controlled so as not to exceed the upper limit rotational speed.