Bobbin winders, whether integrated into the machine or a portable machine, assist in winding the thread on the bobbin and uniformly dispersing the bobbin thread so that it is compatible with the top sewing machine thread tension. The bobbin is a temporary or permanent storage device for yarn or thread used in spinning, weaving, knitting, stitching, or lacemaking. Sometimes your bobbin could be winded by hand. If you have a few and the thread is thick it isnt so bad. But when you have many thin threads then it could be very time consuming and tedious and that's where bobbin winders come in handy.
Usually situated above the thread spool, the bobbin winder is an integral part of any sewing machine. Make sure the thread is threaded through both tension discs on the bobbin winder and the sewing machine before you start winding bobbins. The bobbin winder is activated by placing the bobbin on the spindle, holding the thread end in one hand, and pressing a foot pedal or button. Remove the bobbin from the spindle and snip the thread once the bobbin is full. In this section, you’ll find different kinds of bobbin winders, so ensure that you know which one is best for you.