In the application of punch press, some customers reflect that there will be material phenomenon, which endangers the working process. So what are the reasons for this kind of phenomenon? How can we solve this problem? After reading the following article, maybe you can find the answer.

In the whole application process of punch press, there will be material carrying phenomenon (the sheet metal of workpiece is stuck in the middle of left and right turrets). In serious cases, there will be some organizational failures such as the clamp breaking the sheet metal or the clamp feeding the sheet metal to make it bow and deform, and the protective cover will be damaged. The more serious application failure caused by the belt material causes the workpiece plate to be damaged and the machine tool to be partially damaged. Therefore, it is a system engineering that every punch manufacturer will attach great importance to the systematic study of the problem of feeding and the formulation of a series of preventive measures.

There are many reasons for the belt in the mechanical layer of punch press, and the key points can be divided into two categories

1、 The reason is that the pressure spring between the two strippers of the upper die is insufficient, so that the upper die can not be released from the sheet immediately. The belt material caused by this reason also has repeatability and regularity. This kind of problem needs to be solved by using good quality elastic yellow. The elastic yellow here must have good material, moderate rigidity and high service life.

2、 It is the strip produced by the rebound of waste material: that is, the waste material that should fall when punching by the machine tool jumps up close to the upper die, half of which is stuck in the sheet metal, and half of which is stuck in the stripper sleeve of the lower die or upper die. There is no obvious regularity in the process of taking materials, which is easy to lead to many misunderstandings and misconceptions. Even if the waste material jumps up, even if it falls down and cushions on the edge of the lower die, it is also very harmful. This will make the next punching to two layers of sheet metal (resulting in rapid die edge collapse angle), or even though it does not punch through the scrap, it may also press the upper sheet metal deformation. The stuck scrap (which may be stuck in the lower die or the upper die) is stuck between the sheet metal and the die like a pin, which will cause the material dropping or collision of the clamp.