Sewing thread supply apparatus including a needle bar and an inner kettle

• Main Authors: TSENG, PO-HSIEN, HUANG, CHING-LIN, CHIANG, LI, CHEN, WEIN
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2022
• Subjects: EMBROIDERING; SEWING; TEXTILES; TUFTING

Disclosed is a sewing thread supply apparatus including a needle bar and an inner kettle. The needle bar is used for driving an upper thread to penetrate through a fabric to be capable of moving left and right. An imaginary surface vertical to a vertical direction is defined. The imaginary surface includes a left boundary line and a right boundary line defined according to the position of the needle bar. The inner kettle includes a thread outgoing unit and defines an accommodating space for accommodating a thread spool. When departing from the thread spool and passing by the thread outgoing unit, a lower thread may be abutted to the thread outgoing unit to define a final thread outgoing point. When being projected on the imaginary surface along the vertical direction, the final thread outgoing point is located between the left boundary line and the right boundary line, so that the upper thread and the lower thread are wound from each other so as to generate a uniform thread winding effect during thread windin