摘要:
The present invention aims to avoid occurrence of a hitch stitch by using a simple construction and control. A presser foot device (21) includes a pressing member (22) that presses a sewing workpiece by moving up and down in synchronism with a sewing operation, and a guide member (23) provided at the lower end of the pressing member. The guide member has an opening section (29) provided to allow an upper thread to pass therethrough in a rotating direction of a rotary hook (3), and a restricting section (23a) provided to restrict movement of the upper thread in a direction opposite the rotating direction of the rotary hook. Upon determination that a direction in which a next stitch is to be formed belongs to a predetermined hitch-stitch forming area, detouring movement of a frame (5), holding the sewing workpiece, is carried out. This detouring movement includes moving the frame in such a direction in which the upper thread, extending downward from a sewing needle, moves out of the opening section of the guide member and then further moving the frame to a target position corresponding to the next stitch such that the upper thread, having moved out of the opening section, abuts against the restricting section.
摘要:
There is provided a needle-handler position adjusting device capable of smoothly finely adjusting the amount of deflection of a needle guard (16) with a high degree of accuracy, and capable of reducing the number of parts, thereby simplifying a configuration, and improve maintainability. There are provided a first pin (21) supported by an outer shuttle (17) so as to be displaced in a direction of a first axis (L11) intersecting a radial line centered on a rotation axis (L2), on an imaginary plane perpendicular to the rotation axis (L2), an end face (23) which supports a tip portion (16a) of the needle guard (16)being formed at one end (21a) of the first pin in the direction of the first axis (L11), a first contact surface (24) having a conical shape being formed at the other end (21b) of the first pin in the direction of the first axis (L11); and a second pin (22) screwed into the outer shuttle (17) so as to be displaced in a direction of a second axis (L12) orthogonal to the first axis (L11), a second contact surface (25) having a conical shape and contacting the first contact surface (24) of the first pin (21) being formed at one end (22a) of the second pin (22) in the direction of the second axis (L12), a tool fitting portion (26) into which a tool for advancing and retreating the second pin (22) in a screw manner in the direction of the second axis (L12) is fitted being provided at the other end (22b) of the second pin (22) in the direction of the second axis (L12).
摘要:
Eine Nähmaschine (1) hat mindestens eine auf- und abgehend antreibbare Nadelstange (6) zur Halterung einer Nähnadel (7) zum Ausbilden einer Naht in einem Stichbereich. Ein Antriebteil (14) ist mechanisch mit der Nadelstange (6) so verbunden, dass eine Drehposition des Antriebteils (14) einer Nadelstangenposition während einer Stichbildungssequenz zugeordnet ist. Mindestens ein vom Antriebteil (14) separates Betätigungselement (16; 19; 21; 22; 27) steht mit einem Antriebteil -Antriebsmotor (12) in Signalverbindung und dient zur Vorgabe einer Antriebteil -Drehposition. Es resultiert eine Nähmaschine, bei der eine einfache Bedienung des Handrades gegeben ist.
摘要:
Bei einer Steuervorrichtung für eine Industrienähmaschine, wobei über Schalteinrichtungen, wie Schalter, Taster, Sensoren oder dergleichen Funktionen und Schaltzustände ein- bzw. ausschaltbar sind, indem ein bestimmter Spannungspegel an eine Eingangsschaltung der Steuerung angelegt wird, wobei die Eingangsschaltung ein Ausgangssignal erzeugt, ist vorgesehen, daß beim Anlegen unterschiedlicher Eingangsspannungspegel U e jeweils gleiche Ausgangsspannungspegel U a generiert werden.
摘要:
A speed detector comprises a rotary shaft (1) for rotation' with a sewing machine, a ring-shaped permanent magnet (9) uniformly magnetized in a direction parallel to the axis of the rotary shaft, at least one ring-shaped, internally toothed ferromagnetic member or stator (5) and an externally toothed ferromagnetic circular member or rotor (6) which is secured to the rotary shaft inside the stator to form a varying air gap between the opposing teeth. The permanent magnet and the two ferromagnetic members are disposed to form a closed loop magnetic circuit in which a ring-shaped coil (10) is disposed. The air gap and hence the reluctance of the magnetic circuit changes periodically with the revolution of the rotary shaft so that a voltage is generated in the coil which varies at a frequency proportional to the operational speed of the sewing machine.
摘要:
A speed detector comprises a rotary shaft (1) for rotation' with a sewing machine, a ring-shaped permanent magnet (9) uniformly magnetized in a direction parallel to the axis of the rotary shaft, at least one ring-shaped, internally toothed ferromagnetic member or stator (5) and an externally toothed ferromagnetic circular member or rotor (6) which is secured to the rotary shaft inside the stator to form a varying air gap between the opposing teeth. The permanent magnet and the two ferromagnetic members are disposed to form a closed loop magnetic circuit in which a ring-shaped coil (10) is disposed. The air gap and hence the reluctance of the magnetic circuit changes periodically with the revolution of the rotary shaft so that a voltage is generated in the coil which varies at a frequency proportional to the operational speed of the sewing machine.
摘要:
A sewing machine and a management system for the sewing machine can suppress an increase in the cost of the sewing machines and control power consumption. The sewing machine includes a power portion configured to supply power from a power supply line to a functional portion; and a control portion configured to control the functional portion to operate using the power supplied from the power portion, where the power portion includes a measurement circuit for measuring current and voltage in the power supply line, and the control portion includes: a calculation portion configured to calculate power consumption information of the sewing machine based on the current and the voltage measured by the measurement circuit; and a provision portion configured to provide the calculated power consumption information.
摘要:
Eine verpackte Anordnung (1) hat eine Steuereinheit zum Ansteuern eines Nähmaschinenmotors und eine Verpackung (2), in welcher die Steuereinheit definiert vorpositioniert ist. Die Steuereinheit hat zur Datenkommunikation mit einer externen Parameter-Eingabe-Komponente ein Empfangsmodul und ein Speichermodul. An einer Außenwand (4) der Verpackung (2) ist ein Zielfeld (6) zum benachbarten Positionieren der externen Komponente vorgesehen. Die Steuereinheit ist in der Verpackung (2) derart definiert vorpositioniert, dass die Steuereinheit benachbart zu dem Zielfeld (6) angeordnet ist. Es resultiert eine verpackte Anordnung, bei der eine Konfiguration der Steuereinheit vereinfacht ist.