博客
Goblet Mould
SINOMOULD is a professional manufacturer specializing in the R&D and production of precision plastic goblet moulds. With over 20 years of experience in mould manufacturing, we provide comprehensive customization services for the daily plastic and catering packaging industries, meeting the mass production needs of goblets made of PC, PET, PP and other materials.
Our goblet moulds support customized multi-cavity configurations. Standard tableware moulds can be delivered rapidly, while non-standard special-shaped and large-size custom goblet moulds can be put into production efficiently. The core mould components adopt high-quality mirror mould steel and balanced hot runner technology, ensuring uniform cooling, high light transmittance and defect-free molding, fully complying with the high-gloss and high-transparency production standards for transparent catering products.
We mass-produce thousands of precision tableware injection moulds annually. Our goblet moulds are perfectly compatible with the DKM FE series full-electric injection molding machines from our parent company. Combining optical precision moulds with high-speed full-electric injection molding equipment, we provide turnkey solutions covering mould design, processing and commissioning to complete production lines, helping customers achieve high-quality, defect-free and efficient mass production of plastic goblets.
Goblet Mould Details
Below are examples of the most common parameters for Centrifuge Tube moulds.
| Centrifuge Tube Mould Cavity Steel | S136 | Recommended Injection Machine | DKM FE Series All-Electric Injection Moulding Machine |
|---|---|---|---|
| Goblet Mould Core Steel | S136 | Plastic Material | Medical-grade PP |
| Mould Base Standard / Steel | 4Cr13 Pre-hardened Stainless Steel | Ejection System | Stripper |
| Sliders | High-strength tool steel with surface hardening treatment | Injection Process | High-speed injection, short cycle time, precise temperature control |
| Number of Cavities | 2-8 cavities | Injection Cycle Time | 8–18 seconds |
| Hot Runner System | Fully hot runner system | Mould Manufacturing Lead Time | 50–65 days |
Key Quality Points of Goblet Mould
- Optical Mirror Precision: The core and cavity are made of S136 steel with grade-8 mirror polishing under dust-free environment, eliminating tool marks, spark lines and pitting. The dimensional tolerance is ≤0.005mm with smooth transition of cup body, stem and base, ensuring ultra-high light transmittance and zero visual defects.
- Balanced Cooling System: Adopting conformal surrounding cooling channels and independent zoned temperature control for the thin cup wall and slender cup stem, it effectively prevents warping, shrinkage, stem bending and cup mouth deformation, shortens molding cycle and improves mass production stability.
- Hot Runner Balance Quality: Symmetrical multi-cavity runner layout ensures uniform melt flow and precise temperature control, avoiding gate stringing, flow marks and color difference. It guarantees extremely high consistency in weight, transparency and size of goblets in each cavity.
- Precision Venting and Sealing: High-precision ground parting surfaces with uniform shallow vent slots at the cup mouth and stem end eliminate common defects such as gas marks, burning and material shortage on transparent products. The tightly fitted sealing surface ensures no flash and no secondary polishing required.
- Stable Ejection Structure: Multi-point symmetrical ejection design disperses ejection force evenly, adapting to the thin-walled and fragile structure of goblets. It avoids whitening, indentation, deformation and cracking, and is compatible with high-speed automatic picking and assembly line production.
- Corrosion Resistance and Easy Cleaning: Made of food-grade S136 stainless steel with high polishing performance, it is corrosion-resistant, wear-resistant and easy to clean with no impurity precipitation, complying with food contact hygiene standards for catering utensils.
- Stable Equipment Compatibility: Specially adapted to DKM FE series full-electric high-speed injection molding machines with high opening/closing and injection precision. The matched precision mould supports long-term high-speed continuous production with low loss, high yield and consistent mass production quality.
Key Points in Goblet Mould Manufacturing
- Optical Precision Component Machining: The core and cavity are made of high-quality S136 mould steel, processed through multiple procedures including rough grinding, finish grinding, progressive sandpaper refinement and diamond mirror polishing. Strict tolerances are controlled for cup body curved surface, stem coaxiality and base flatness. Conformal spiral cooling channels are processed according to the special-shaped curved structure of goblets to perfectly fit the molding surface and completely solve the problems of deformation, shrinkage and uneven light transmission of transparent products.
- Precise Machining of Runner, Sealing and Venting: The symmetrical integrated machining process for multi-cavity runners ensures balanced melt flow velocity and pressure in each cavity, avoiding color difference and dimensional deviation of batch products. The parting surface is leveled by high-precision grinding, and micro shallow vent slots are arranged at the melt end with accurately controlled sealing gaps, eliminating flash, gas marks and gate defects to ensure a fully transparent and flawless product surface.
- Ejection Assembly and Overall Commissioning: Ejector pins and sleeves are precisely fitted and surface polished to prevent scratching the transparent cup body during demolding. All mould parts undergo standardized deburring and anti-rust treatment with strict assembly precision control. After assembly, multiple mould trials are carried out on DKM FE full-electric injection molding machines to calibrate multi-cavity molding consistency and optimize injection parameters, ensuring the mould is ready for direct high-speed and stable mass production.
