Today is September 3, this time is the school time, I believe most of the students and parents are very busy. And Dongguan Plastic mold factory editor is also very busy. Some time ago has no time to update the site, until today, today finally available for everyone on the plastic mold guide hole and guide sleeve design.
In order to ensure the accuracy of guidance and easy maintenance, the guide hole is generally used in the form of into the guide sleeve. The design of the guide hole is as follows:
1, the guide hole is best for the hole, otherwise the guide column into the hole did not pass the hole, the hole can not escape the air, resulting in anti-pressure, to guide the column movement caused by resistance. If the mold is limited by the mold, the guide hole must be made of blind holes, it should be in the blind hole on the side of the additional ventilation holes
2, in order to guide the column more smoothly into the guide, in the front end of the guide sleeve should be inverted fillet. Usually the guide sleeve is made of hardened steel or copper and other wear-resistant materials, but its hardness should be lower than the hardness of the guide column to improve the friction and prevent the guide column or guide sleeve nap.
3, the sliding part of the sleeve hole according to H8 / f8 gap with the guide sleeve diameter according to H7 / m6 transition with
4, guide sleeve installation fixed way, the use of shoulder or screw fixed
Vertical analysis, the guide sleeve is installed in the other half of the mold on the guide column to match, to ensure that the dynamic mode and the relative position of the mold to ensure that the mold opening and closing mold movement precision of the circular sleeve parts. The guide post cooperates with the guide sleeve (or hole) mounted on the other mold to ensure the relative position of the movable mode and the fixed mold, and ensure the cylindrical part of the mold opening and closing movement precision.
Note: The above information from the Jiezheng mold finishing on the Internet, welcome reproduced, indicate the source!