In daily life, we seem to pay little attention to the quality of sewing machine accessories when we use sewing machines. Unless there are some minor problems, we will consider the pros and cons of sewing machine accessories.
Here are a few ways to test the pros and cons of sewing machine accessories:
(1) The needle plate and feed dog of the medium-speed machine are both double-row, and the rear part bears a lot of force. When the operator uses the sewing machine with the reverse feed wrench for reverse feed operation, it is easy to inject injections, such as injections. If the needle board is used, this phenomenon is not easy to occur if a good quality needle board is used.
Inspection method: Use a rose knife to put it into the cloth feed slot on the needle plate, and shake it left and right, carefully observe whether it is deformed under force, if it is deformed, it is inferior.
(2) How to check the presser foot: Use pliers to bite the presser foot to see if it can bite the mark, the pliers can not bite the mark.
(3) Sewing products companies use high-speed machines. Many sewing products are new waterproof materials and chemical synthetic fiber materials. Therefore, the needles must be resistant to high temperatures. Generally, chrome-plated needles are not suitable. Even if they are available, the effect Not ideal.
(4) The tip of the high-quality rotary hook is not prone to burrs during use, and the electroplated surface of the sewing machine parts is brighter, which is suitable for high-speed lockstitch sewing machines and has a good effect. The fake and inferior rotary hook frame shakes in the bobbin case, the hand feels burrs, the hardness of the hook tip is not enough, and the burr and blunt tip are prone to appear during use.
