Vacuum-Sealed Drink Cover Injection Mold Part

Core Advantages

• Precision Thread Molding Technology: Utilizing high-precision CNC machining and EDM processes, thread dimensional tolerances are controlled to the micron level, achieving seamless screwing between the lid and the cup body, eliminating leakage caused by stripped threads or excessive gaps.
• Automatic Demolding Mechanism: The mold is equipped with gearrack or hydraulic cylinder-driven unscrewing mechanisms to achieve automatic thread release, reducing injection cycles, eliminating manual trimming costs, and improving product yield rates.
• FoodGrade Safety Standards: The mold runner system is optimized to reduce gas marks and weld lines. Materials and release agents used comply with international food contact standards, ensuring injection parts are odorless and contamination-free.
• OneStop Component Services: Provides injection production, sealing ring assembly (e.g., silicone rings), and ultrasonic welding services, supporting component-level delivery to simplify the customer's supply chain process.

Product Features

• High Dimensional Stability: Shrinkage rates are precisely calculated through mold flow analysis. Injection parts maintain dimensional stability in high or low temperature environments, ensuring no deformation during long-term use.
• Reliable Sealing Performance: Thread precision perfectly matches the sealing groove structure. After installing sealing rings, airtightness and water tightness comply with industry leakage testing standards.
• High Surface Finish: The product surface is free of flash and burrs, with a round and smooth touch, meeting ergonomic holding requirements and enhancing the end-user experience.
• Chemical Resistance: Materials are resistant to boiling water, acidic, and alkaline beverages without leaching harmful substances, adapting to various beverage storage environments.

Application Scenarios

• Stainless Steel Vacuum Flasks: Used for the production of screw lids for various business thermos bottles and sports water bottles.
• Children's Water Bottles & Sippy Cups: Adapted for mold development and injection production of safe, leakproof threaded lids.
• Food Storage Containers: Suitable for plastic jar lids and seasoning bottle caps with threaded sealing structures.
• Home Appliance Water Tank Lids: Used for threaded lid body components in appliances like coffee machines and humidifiers.

FAQs and Solutions

Q1: What causes jamming or “stripping” during the screwing process of the thread lid?
Solution: This is usually caused by thread concentricity deviation or inaccurate thread profiles. During the mold machining stage, we use high-precision wire cutting (slow wire) and CMM inspection to ensure the coaxiality of the thread core and cavity. During the sampling phase, we perform full inspections using Go/NoGo gauges and fine-tune mold parameters based on data to ensure a smooth screwing feel and adequate locking force.

Q2: Flash (burrs) appear at the end of the thread or the parting line, affecting usage safety. How is this resolved?
Solution: Flash issues relate to mold clamping force and machining precision. We select high-rigidity mold bases and use precision fitting techniques in the thread forming area to minimize parting line gaps. Simultaneously, we optimize injection process parameters to prevent mold deformation from excessive clamping force, thereby eliminating flash and ensuring safe, rounded product edges.

Q3: How do you meet local compliance requirements for food contact materials when exporting molds to Europe?
Solution: With 15 years of export experience, our mold designs comply with DIN standards. In the injection production phase, we strictly select food-grade raw materials certified by the FDA and LFGB, and establish a comprehensive production traceability system to ensure products meet food safety regulations in European and American markets.

Q: 10. If I want to develop a product containing injection-molded parts, what kind of assistance can you provide?

We can provide full support ranging from product development review and structural design, to mold manufacturing, volume injection molding, printing, and assembly. We can collaborate with customers in the early stages of product development to optimize designs for cost reduction and improved manufacturability.

Q: 9.What is the company's quality policy?

The company always adheres to the quality policy of "Precision, High Efficiency, Forging Quality," and is committed to providing customers with high-quality services through advanced technology and an excellent management team.

Q: 8.What are your competitive advantages compared to other mold enterprises?

Our advantages lie in the combination of Singapore's precision mold technology, advanced production equipment (extensive imported CNC and injection molding machines), a comprehensive one-stop production process (from design to assembly), and a strict quality management system certified by IATF 16949.

Q: 7.Who are your main customers, and to which regions are the products exported?

We have established good cooperative relations with well-known companies, including UK's Land Rover and Triumph Motorcycles, domestic SAIC, Changan, ABB charging stations, and Japan's Tiger Corporation. Our products are exported to countries such as Japan, Europe, and the United States.