YIZHUN INTELLIGENT MANUFACTURING CO.,LTD

What is the main difference between an open punch and a closed punch?

The rapid development of the mold industry has made many people start to invest in mold production. However, the mold industry has a high technical content, and the relevant knowledge is very professional. If the understanding of the mold before the investment is not deep, the pit is small, and the investment failure is more likely. Now let's understand the difference between the open punch and the closed punch in the die and mold industry: according to the structure, it can be divided into two categories: 1. Open punch: the structural shape is C-type, and one side is open type. Advantages: low cost, convenient upper and lower workpieces, convenient for large-scale sheet metal processing. Defects: low station tonnage, the maximum can only reach 35 tons, 2. Closed punch: mechanism shape o, no open surface. Advantages: it can make high tonnage 35 tons and above, good stability. Suitable for high precision sheet metal processing. Defects: the cost is higher than open CNC punch, Materials must be loaded and unloaded from the left and right sides. According to the working stamping methods, it can be divided into: 1. Mechanical transmission: using flywheel rotation inertia to drive the impact head to punch. Advantages: low cost, easy maintenance; defects: high noise, tonnage limitation 2. Hydraulic transmission: the hydraulic cylinder motor is used to drive the striking head for stamping. Advantages: low noise and high tonnage; defects: high cost and maintenance. There are dozens of types of punch in mold production, such as precision punch, CNC punch, pneumatic punch, high-precision punch, steel frame punch and so on, which are often used. There is a standard for which kind of mold needs to be used and which punch is not used casually.