Sewing device with an upper thread tension adjustment device
A tension adjustment and sewing machine technology, applied in the field of sewing machines, can solve problems such as high cost, complex structure, and difficult fine-tuning, and achieve the effect of easy sewing and wide tension adjustment range
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[0069] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0070] figure 1 A perspective view showing the vicinity of the thread tension dial of a sewing machine having the needle thread tension adjusting device of this embodiment, figure 2 express figure 1 An exploded perspective view of the needle thread tension adjustment device shown. Such as figure 1 As shown, the sewing machine 1 of the present embodiment has an upper thread tension adjustment device 5, and the shaft 11 of the upper thread tension adjustment device 5 ( figure 2 , image 3 ) is fixed on the machine base 2 of the sewing machine 1. Turn the thread tension dial 19 of the upper thread tension adjustment device 5 to figure 1 When the upper or lower direction of the upper thread tension adjustment device 5 is rotated, the tension display part 17 of the upper thread tension adjustment device 5 is proportional to the rotation angle of the tensi...
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