The mold guide bushing plays an extremely important role in the mold system. In the injection mold, when the plastic melt is injected into the cavity, huge pressure will be generated. The mold guide bushing provides precise guidance for the opening and closing of the mold, ensuring that the movable mold and the fixed mold can be accurately aligned during the mold closing process, so that the cavity is tightly closed and the plastic melt is prevented from overflowing, thereby ensuring the dimensional accuracy and appearance quality of the injection molded product. For example, the injection molding production of automotive interior plastic parts, with its complex shape and high appearance requirements, cannot be separated from the precise guidance of the mold guide bushing on the opening and closing of the mold.

In the stamping mold, the mold guide bushing is subjected to frequent impact and vibration. It can effectively reduce the wear of the mold during the working process and extend the service life of the mold. When the stamping mold is stamping thin sheet metal at high speed, the guide bushing keeps the upper and lower die seats in a stable relative position, ensuring that the gap between the punch and the die is uniform during the stamping process, so that the edges of the punched parts are neat and the size is consistent. The production of stamping parts such as metal shielding covers in electronic equipment is inseparable from the role of the mold guide bushing.
Its role is mainly reflected in many aspects:
Guiding function: With the high-precision inner and outer cylindrical surfaces, it provides a straight and stable path for the movement of the mold, reducing the risk of damage to the mold due to deflection.
Load-bearing function: It can withstand the axial and radial forces when the mold is opened and closed, disperse the pressure, and protect other key components of the mold.
Lubrication characteristics: Good lubrication design can reduce the friction coefficient between the guide pin and the bushing, further reduce wear, and improve the working efficiency and precision of the mold.

Mold guide pin bushings have become an indispensable component of the mold industry with their stable and reliable performance, laying a solid foundation for the efficient and precise operation of various molds, and promoting the high-quality production and rapid development of many products in the manufacturing industry.