​The external structure of the shredder is shown in Figure 11, the principle of the control system. After the shredder is powered on, the power indicator is on and the system is in standby, waiting for the user to put paper.

​With the rapid development of information technology, data information has become very important for both enterprises and individuals.

​The nesting plays a vital role in the design of the progressive die, which determines the number of stations, the sequence of different processes, the size of the step and the positioning method in the part forming process.

The stress at the tooth forming part of the mold is concentrated, the mold is easy to crack here, and the life of the mold is short.