带有操作控制装置的缝纫机

Sewing machine with operation control devices

Abstract

The invention is a sewing machine (1) comprising a main motor (8) suited to axially rotate a main shaft (3) for moving the vertical needle-holding rod (4), an auxiliary motor (9) mechanically connected to the lower drive wheel (6) and to the roller (71) of the upper presser foot (7), an encoder (10) connected to a cam (43) for the oscillation of the needle-holding rod (4) and suited to detect the motion of said cam (43), that is, of said rod (4), an auxiliary electronic board (11) communicating with said encoder (10) and with said auxiliary motor (9), and wherein said auxiliary electronic board (11) activates said auxiliary motor (9) so as to modulate the speed and/or the rotation direction of said lower drive wheel (6) and of said upper roller (71) according to the motion of said needle-holding rod (4).
本发明涉及一种缝纫机(1),其包括:用于轴向旋转主轴(3)的主电机(8),用于移动垂直针握持杆(4);机械连接到下驱动轮(6)和上压脚(7)的辊(71)上的辅助电机(9);连接到用于所述针握持杆(4)的摆动的凸轮(43)的解码器(10),其检测所述凸轮(43)即,所述杆(4)的运动;与所述解码器(10)和所述辅助电机(9)通信的辅助电子板(11),并且其中所述辅助电子板(11)致动所述辅助电机(9),以便根据所述针握持杆(4)的运动调节所述下驱动轮(6)和所述上辊(71)的速度和/或旋转方向。

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