How to determine the parting line of the injection mold

- Nov 20, 2018-


How to determine the parting line of the injection mold?


When we are doing mold processing, we must have a parting line. Why is there a parting line? In fact, the parting line is also called a parting line, mainly considering the design requirements and appearance requirements of the product. Whether the processing is feasible and the position of the mold to follow the glue. Plastic products will have obvious parting line marks anyway, and the mold line will know the structure of the mold. The following injection mold manufacturers come to tell you how to determine the parting line:


How to determine the parting line:


Before designing the parting surface, it is first necessary to determine the shape and position of the parting line on the plastic part. When the mold opening direction is determined, it is easier to determine the parting line. Because the projection of the parting line in the mold opening direction coincides with the outer contour of the projection of the plastic part in the direction, it is possible to move along the outer contour line projected by the object with a straight line parallel to the mold opening direction, and The intersection of the line at each location with the surface of the object.


(1) When a line intersects the surface of the object at a point, the point is the point on the parting line.


(2) The line intersects the object in a multi-point, multi-segment straight line, indicating that the intersection of the global approach cone and the mold opening direction is 0, so the design of the core is designed, and the parting line should be determined according to the shape and size of the core. .


(3) A straight line intersects the surface of the object in a straight line segment, and any point on the straight line segment can be used as a point on the parting line, specifically determining which point is used as a point on the parting line, generally with its adjacent The shortest connection is the principle. It can also be determined interactively.


What we are introducing today is why there is a parting line and how to determine the parting line when the mold is injection molded. I hope everyone can have a new understanding of our parting line after reading this article.




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