1. The product is too thin, and the manufacturing precision of the vibration plate is not good, resulting in poor accumulation and clamping. In this case, high technology, wire cutting, computer gong, etc. are needed to manufacture objects and tracks with high precision. 2. There is a situation of material jamming or material reversal caused by the wrong goods. In this case, it can only be returned to the factory for processing; 3. The material channel is uneven and has burrs, or the material channel is uneven and the bending arc is too small. This situation is an experience problem of the swing machine. There is no other way, and it can only be handled according to the situation. 4. The vibration plate vibrates too much or too little. If it is good material, it is best to use FM controller.