Scientific Achievement Registration: High-Speed Synchronous Core-Pulling Water-Management Mold

The Zhejiang Provincial Department of Science and Technology, as the highest administrative authority for S&T work in the province, is responsible for organizing and implementing S&T achievement registration. S&T achievement registration is an important part of S&T achievement management, implemented in accordance with the “Measures for S&T Achievement Registration” (Guo Ke Fa Ji Zi [2000] No. 542). All research projects that have passed appraisal, acceptance inspection, or have obtained patents may apply for registration. Registered S&T achievements are uniformly numbered by the Zhejiang Provincial Department of Science and Technology and, after public announcement, are issued an S&T Achievement Registration Certificate. This certificate is a required attachment for applying for the Zhejiang Province S&T Award and is also an important basis for enterprises to qualify for High-Tech Enterprise, Technology-Based Enterprise, High-Tech Enterprise R&D Center, and other qualifications. Zhejiang SINOMOULD Co., Ltd.’s independently developed “High-Speed Ejection and Core-Pulling Synchronized Integrated Drip Pipe Water-Stop Mold” was registered as an S&T achievement by the Zhejiang Provincial Department of Science and Technology. This technological achievement possesses novelty, advancement, and practical value, representing a domestically pioneering or leading technical solution, signifying that SINOMOULD’s key technological breakthrough in the field of precision drip pipe injection molds has received provincial-level authoritative certification.

Core Technology: Synchronized Ejection and Core-Pulling, Significantly Shortening Molding Cycle

The technical difficulty of drip pipe water-stop molds lies in the complex product structure — undercut structures such as water-stop rings must be demolded through a core-pulling mechanism. In traditional processes, ejection and core-pulling are performed step by step, resulting in long molding cycles and low production efficiency. Through structural innovation, SINOMOULD’s R&D team integrated the ejection and core-pulling actions into the same drive system, achieving synchronized integrated motion of ejection and core-pulling. During the mold opening process, product ejection and lateral core-pulling demolding are completed simultaneously, significantly shortening the injection molding cycle.

In mold design, the core innovation of this technological achievement lies in the collaborative design of the core-pulling mechanism and the ejection system. By optimizing the motion trajectory of the core-pulling slide and the ejection force transmission path, it ensures no interference occurs during the synchronized motion process while guaranteeing the complete demolding of undercut structures such as water-stop rings, avoiding product scratching or deformation. In injection molding, the synchronized integrated design effectively shortens the demolding action time within a single molding cycle, significantly reducing the injection molding cycle and improving output efficiency per unit time. A shorter molding cycle also means that the mold withstands fewer thermal cycle impacts within the same time period, helping to extend mold service life.

Achievement Advancement: Domestically Pioneering Technical Solution, Protected by Independent Intellectual Property Rights

Drip pipes, as key components of drainage systems in home appliances (washing machines, air conditioners, etc.), have extremely high requirements for water-stop sealing performance and dimensional precision. SINOMOULD’s independently developed “High-Speed Ejection and Core-Pulling Synchronized Integrated Drip Pipe Water-Stop Mold” technology solves the industry-wide common problems of low production efficiency and unstable product yield rates in traditional drip pipe molds. This technological achievement has obtained multiple core independent intellectual property protections, with the technical solution possessing domestic pioneering status.

In mold manufacturing, the synchronized integrated motion places higher demands on the machining precision and fitting accuracy of mold components. Relying on high-precision CNC processing equipment and a systematic precision manufacturing process system, SINOMOULD ensures the machining precision and surface quality of key components such as core-pulling slides and ejector plates, providing manufacturing assurance for the stability and reliability of the synchronized motion. In quality control systems, SINOMOULD has passed ISO9001 Quality Management System certification and IATF 16949 Automotive Industry Quality Management System certification, establishing a full-process quality control system covering mold design review, processing process monitoring, and assembly, commissioning, and inspection, ensuring that each drip pipe water-stop mold undergoes strict trial mold verification and dimensional inspection before delivery, providing customers with stable and reliable production assurance.

Shorter Cycle, Longer Life, More Stable Yield Rate

For drip pipe production enterprises, the molding cycle, service life, and product yield rate of molds directly determine production costs and market competitiveness. SINOMOULD’s “High-Speed Ejection and Core-Pulling Synchronized Integrated Drip Pipe Water-Stop Mold” technological achievement, through the synchronized coordination of ejection and core-pulling, brings customers shorter injection molding cycles, longer mold life, and more stable product yield rates. The technological maturity assurance certified by provincial-level S&T achievement registration provides reliable technical support for customers’ high-volume drip pipe production.

According to the management requirements of the Zhejiang Provincial Department of Science and Technology, the S&T Achievement Registration Certificate is a required attachment for applying for the Zhejiang Province S&T Award, and registered achievements are incorporated into the provincial S&T achievement database for unified management. SINOMOULD will continue to advance in-depth R&D and industrialization of drip pipe mold technology, consolidating its technological leadership position in the field of home appliance precision injection molds.