The Butter Bottom Cap Mould is a specialized matching mold for Industrial Butter Bottles, designed to produce bottle caps that meet the strict performance requirements of industrial lubrication packaging. The finished caps must provide excellent sealing performance to prevent butter leakage and contamination, and offer high impact resistance to withstand the rigors of industrial handling and transportation.

To achieve the required sealing performance, the mold is designed with precision-threaded cores and cavities. These components are machined to exacting tolerances, ensuring that the bottle cap threads mesh perfectly with the bottle neck threads. This precise fit creates an airtight seal that prevents leakage, even under pressure or when the bottle is inverted. The cavity is fabricated from S136 mold steel, which undergoes a special surface treatment to achieve a high 光洁度. This results in bottle caps with smooth surfaces, free from flash, shrinkage marks, or other defects that could compromise sealing performance or aesthetic appeal.

The gating system employs a point gate design, with the gate located at the top of the bottle cap. This positioning ensures that the plastic melt flows evenly into the cavity, minimizing weld lines and ensuring consistent material distribution. The point gate also leaves a minimal, nearly invisible mark on the finished cap, maintaining the product’s aesthetic quality. The ejection mechanism utilizes a sleeve ejection design, which provides uniform force distribution across the entire cap surface during demolding. This gentle ejection method prevents thread deformation, ensuring the cap maintains its precise dimensions and sealing performance. By focusing on sealing reliability, impact resistance, and dimensional accuracy, the Butter Bottom Cap mould provides a perfect matching solution for Industrial Butter Bottles, ensuring the safe and secure packaging of industrial lubrication products.