The core of plastic gear mold manufacturing lies in achieving ​​high precision, high wear resistance, and ease of maintenance​​.

In the design and manufacturing of injection molds, locating pins (Locating Pin) are deceptively simple yet critically important precision components. Through their unique geometric structures and mechanical characteristics, locating pins plays multiple roles in mold clamping, demolding, and repetitive operations.

This guide outlines critical factors for TPU injection molding, covering material properties, pretreatment, mold design, process parameters, and solutions to common defects.

Return pins are core functional components of the ejection system in injection molds. Their performance affects mold cycling efficiency, product demolding quality, and equipment safety.

Glass fiber-reinforced material injection molding is a process that enhances the mechanical properties (e.g., rigidity, heat resistance, wear resistance) of products by incorporating reinforcing materials like glass fibers into standard injection molding.

A sub gate, also known as a hidden gate, refers to a gate design where the gate is cleverly positioned within the internal structure or inconspicuous areas of the product during mold design. This ensures no visible gate marks on the product surface after molding. This design not only enhances product aesthetics but also optimizes melt flow and cavity filling, meeting the demands of high-quality manufacturing.

The draft angle in injection-molded products refers to the inclined angle between the product

The gate is the passage that connects the runner and the cavity in an injection mold. Its location and form significantly affect the quality of the molded part, production efficiency, and mold life. A reasonable gate layout ensures smooth filling of the cavity with the melt, reduces defects, and improves product quality.

In multi-cavity mold design, runner balance directly impacts filling uniformity across cavities and the consistency of product quality.

The inspection and acceptance of injection mold bases are critical steps before mold assembly and manufacturing, directly impacting mold precision, service life, and production stability. Hidden defects or dimensional deviations in the mold base can lead to issues such as difficult mold clamping, ejection jamming, or even product scrap during mass production.