In the guide pin and guide sleeve structure, the application of guide pins is becoming more and more extensive, but in order to ensure the quality of use,
the structural design needs to meet the relevant technical requirements. Next, the technical requirements of the guide pin and guide sleeve structure are analyzed,
and it is hoped that mold accessories manufacturers can provide some references.

In order to meet the technical development requirements of the social structure, the first thing to do is to select the right material. Usually,
the selected material should have a hard and wear-resistant round surface and a tough but not broken core. Therefore, most of our companies in my country are currently using 20 steel,
whose surface is mainly used for carburizing and quenching. You can also choose T8 steel and TlO steel, whose hardness is about 55HRC.

After selecting a suitable material, the diameter and length of the design of the suitable enterprise material can be very important. Usually,
when the diameter of the guide pin is between 12-63mm, the diameter of the guide pin and guide sleeve and the width of the template should be kept between 0.06-0.1.

Generally speaking, the guide part of the guide should be about 6 to 10 mm higher than the convex surface.
The main research purpose of this teaching design is to prevent the core from entering the cavity.

In addition, we have also set a surface roughness. According to experience, the guide surface roughness is usually represented by the letter r, the size is 0.8 fcm,
and the sliding part is 0.4 t ra0.4 t. When choosing the appropriate tolerance, pay attention to reliable fixation.

Not only that, our country also needs to scientifically and reasonably design the shape information of the guide pin.
In order to make the guide pin and guide sleeve smoothly develop into the guide hole, the front end technology of the guide pin usually needs to be designed into a conical or hemispherical shape.
Considering the difficulty of hemispherical processing, a conical design is usually adopted.