This product is a high-gloss, clear ultra-thin-wall GPPS box for candy and bakery with a lid and bottom. The key technical difficulties in making the mold and molding the parts include the following:

Mold Design Challenges

1. High Gloss Finish
   • Achieving a high gloss finish requires precise mold polishing. Any surface imperfections will show on the final product.
2. Thin Wall Sections
   • The smallest thickness at the opening edge is 0.6mm. Ensuring uniform wall thickness is challenging. Thin walls can cause flow and cooling issues.
3. Hot Runner System
   • Using a 4-cavity pin-gate hot runner system increases complexity. Precise temperature control is crucial to avoid defects.
4. Multi-Cavity Mold
   • Maintaining consistency across multiple cavities is difficult. It requires precise machining and balancing of the mold.

Molding Process Challenges

1. Material Flow
   • GPPS has a high viscosity. Ensuring proper flow into thin sections requires optimal injection pressure and speed.
2. Cycle Time
   • A 16-second cycle time is tight. Efficient cooling and ejection are necessary to maintain this cycle without defects.
3. Part Ejection
   • Using an ejection plate instead of ejector pins can complicate the ejection process. Proper adjustment is necessary to avoid damaging the parts.
4. Warping and Shrinkage
   • Thin sections can warp or shrink unevenly. Precise control of cooling rates and mold temperatures is essential.

Addressing Technical Difficulties

1. Polishing and Finishing
   • Use diamond paste for mold polishing. This ensures a mirror-like finish to achieve high gloss on the product.
2. Flow and Cooling Analysis
   • Conduct mold flow analysis. This helps predict and optimize material flow and cooling patterns.
3. Hot Runner Balance
   • Implement precise temperature control systems. Balance the hot runner system to ensure uniform material distribution.
4. Cycle Time Optimization
   • Use conformal cooling channels. This reduces cooling time and helps maintain a short cycle time.
5. Ejection System
   • Optimize the ejection plate system. Ensure even force distribution to release parts smoothly and prevent sticking or damage.

In summary, producing a high-gloss, thin-walled GPPS candy box involves several technical challenges. Addressing mold polishing, material flow, cycle time, and part ejection with an ejection plate are crucial for success. By optimizing these factors, manufacturers can ensure high-quality, defect-free parts.

VolksMolds is a leading plastic injection mold manufacturer known for its expertise, experience, and proven history. Moreover, the company excels in producing high-precision molds for various sectors, including packaging, store displays, and homewares. With a commitment to quality and innovation, VolksMolds consistently delivers reliable and efficient molds, thereby earning a strong reputation in the global market.