The folding plastic stool moldis a sophisticated engineering system that enables the transformation of seating furniture from a fixed form to a foldable structure. The core technology of this mold lies in the precise control of the formation of the movable joint structure. It is necessary to complete the integrated manufacturing of the chair surface, support legs, and hinge structure simultaneously within a single injection molding cycle, and ensure that the movable components have mechanical properties with a fatigue life exceeding 50,000 cycles. 
The mold is designed with a modular architecture, equipped with multiple sets of hydraulic side core-pulling systems and rotating slider mechanisms. Through precise timing control, it enables the demolding of complex internal locking structures. The hot runner system adopts needle valve sequential control technology to ensure the strength of the weld marks in the movable joint area. The cooling system implements differentiated thermal management strategies for different wall thickness areas, effectively controlling the deformation problems caused by the difference in crystallization rates. The ejection mechanism innovatively employs a combination of multi-stage ejection and air-assisted demolding, avoiding stress whitening in thin-walled structures during demolding. 
In the field of folding structure molds, Yige Mold has conducted motion simulation analysis and durability tests to ensure that all moving mechanisms maintain stable accuracy over long periods of high-frequency operation. The mold is equipped with a sensor monitoring system, which can collect real-time data on mold temperature, pressure, and motion parameters, providing data support for the stability control of the production process. This technical solution enables the folding chair to have the structural strength of a complete seating apparatus in the unfolded state, and achieve a 70% space compression rate in the folded state, making it an ideal solution for modern compact living.