Tie rod back stitch Center guide post The manufacturer takes you to understand the role of the guide post in the mold
The manufacturer of the Tie rod back stitch Center guide post tells you that the movable formwork often slides back and forth on the tie rod to open and close the mold during work, so that the movement can run normally, and ensure that the contact position of the movable and fixed formwork is correct when opening and closing. Set guide pillars and guide sleeves on the movable and fixed templates to ensure that the mutual positions of the cavities are correctly matched when the two movable and fixed templates are closed.
The manufacturer of the Tie rod back stitch Center guide post tells you that the front end of the guide post should be inverted with a 3-5 tapered bevel. If the guide post body is designed to be conical, the accuracy of the position fit between the two templates will be more accurate. Since the sliding fit between the guide post and the guide sleeve is a frequent sliding in and out, the following requirements should be put forward for the guide post:
①Length The length of the guiding part of the guide post should be 8~12mm higher than the height of the end face of the core.
②Shape The front end of the guide post should be made into a truncated cone or hemispherical shape, so that the guide post can enter the guide sleeve smoothly.
③The manufacturer of Tie rod back stitch Center guide post tells you that the material guide post should have a hard and wear-resistant surface and a tough and not easy to break inner core, so 20 steel (surface carburized and quenched) or T8, T10 steel (treated by Quenching treatment), the hardness is 50~55HRC. The surface roughness of the fixed part of the guide post is m, and the surface roughness of the guide part is m.
④Quantity and Arrangement The guide pillars should be reasonably and evenly distributed around the parting surface of the mold, and there should be a sufficient distance from the center of the guide pillars to the edge of the mold to ensure the strength of the mold (the distance from the center of the guide pillars to the edge of the mold is usually 1~ of the diameter of the guide pillars 1.5 times). Tie rod back stitch Center guide post The manufacturer tells you that in order to ensure that the mold can only be closed in one direction when the mold is closed, the guide posts can be arranged asymmetrically with equal diameter guide posts or symmetrically with unequal diameter guide posts.