Angular pins (angle pins, angle pins) in injection molds are special pins used to remove an undercut portion from a molded product. An undercut is a shaped portion of a molded product that cannot be pulled directly out of the mold. Angular pins are designed to efficiently demold such complex shapes.
Role and function of angular pins
Avoidance of undercut
It has the role of forming an undercut portion of a molded product and avoiding it during demolding.
Driving slide mechanism
The angulara pins work in conjunction with the slide core (slide component) to slide in a specific direction in response to the opening and closing motion of the mold. This releases the undercut area and allows the molded product to be safely demolded.
Angle setting
The angular pins are mounted at an angle, and when the mold opens, the pins move in an oblique direction. This movement causes the slide core to pull out laterally, releasing the undercut area.
Angular pin design and placement
Angle
Typically set in the range of 10 to 25 degrees, but the specific angle is determined by the shape of the molded part and the depth of the undercut.
Placement: The angular pins are placed in a specific position in the mold.
Angular pins are designed to be placed in a specific position in the mold and to work properly with the slide mechanism.
Material
Because of the need for durability and precision, they are usually manufactured from high-hardness tool steel or special alloys.
Usage Precautions
Wear and Maintenance
Angular pins are subject to wear due to frequent operation. They require regular maintenance and replacement.
Design accuracy: The accuracy of the design is directly related to the quality of the molded product.
Precise calculations and simulations are required at the design stage because they directly affect the quality of the molded product.
Angular pins play a critical role in injection molds and are essential for efficient and high-quality production of complex molded parts with undercuts. With proper design and maintenance, the efficiency of the molding process and product quality can be greatly improved.
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