1. Disposable Chopsticks Mold
Structural Features: Split-type double-cavity design, length 200-230mm, square or circular cross-section
Core Technology: Two-color co-injection system (PP main body + PS anti-slip tip), molding cycle 4-6 seconds
Production Capacity: 1×64 design, daily output 500,000-600,000 pairs, qualification rate ≥99.3%
2. Disposable Spoon Mold
Cavity Structure: Curved surface with gradient wall thickness (0.6-1.2mm), adjustable volume 15-30ml
Gating System: Needle-valve hot runner, anti-slip texture molding module on handle
Production Efficiency: 1×48 cavities, cycle time 8-10 seconds, output 80,000-90,000 pieces per ton of material
3. Disposable Fork Mold
Precision Mechanism: Four-tine molding module (tine tip safety radius R0.3mm), tine spacing 1.2±0.1mm
Thin-Wall Technology: Tine wall thickness 0.5mm, using 150MPa high-pressure high-speed injection
Quality System: Automatic visual inspection for missing/defective tines, defect rate ≤0.2%
4. Disposable Knife Mold
Blade Design: Dual-mode serrated/straight edge, blade thickness 0.3-0.5mm
Safety Structure: Blade tip radius R0.8mm, blade angle adjustable 30-45°
Material Compatibility: HIPS/PP dual-material adaptation, zoned mold temperature control
5. Disposable Plate Mold
Large Structure: Diameter 180-250mm, deep-drawn structure depth 30-50mm
Reinforcement Design: Ring-shaped reinforcement rib network (rib height 1.5mm, spacing 15mm)
Stacking Function: 1-2° taper self-stacking structure, stacking height error ≤0.1mm
1. High-Efficiency Hot Runner System
Uses domestic energy-saving hot runner, power consumption reduced by 25%
Independent temperature control per cavity, temperature variation within ±2°C
Runner diameter optimization: main runner Φ6mm → branch runner Φ4mm → gate Φ1.0mm
2. Rapid Cooling Solution
Cooling water parameters:Flow rate: 60-80 L/min per moldTemperature: 15-25°C (adjustable based on material)Pressure: 0.4-0.6 MPaWater channel diameter: Φ8mm (main), Φ6mm (branch)3. Automation Integration Interface
Robotic part removal time: ≤1.2 seconds
Online weighing system: accuracy ±0.05g
Automatic packaging interface: standard 50 pieces per pack
1. PP Material-Specific Mold
Mold temperature control: 40-60°C
Shrinkage compensation: 1.5-2.0%
Surface treatment: textured Ra 1.6-3.2μm
2. PS Material-Specific Mold
Mold temperature control: 50-70°C
Vent depth: 0.02-0.03mm
Polishing requirement: mirror finish Ra 0.1μm
3. PLA Bio-based Material Mold
Low-temperature molding: mold temperature 20-40°C
Rapid cooling: cooling time reduced by 30%
Corrosion resistance design: 316L stainless steel for key components
1. Precision Grade System
Grade A mold (export standard):Cavity tolerance: ±0.02mmService life requirement: ≥800,000 cyclesSurface roughness: Ra 0.025μmGrade B mold (domestic high-end):Cavity tolerance: ±0.05mmService life requirement: ≥500,000 cyclesSurface roughness: Ra 0.1μm2. Key Component Configuration
Core/cavity: S136/1.2083 stainless steel
Mold plates: P20 pre-hardened steel, hardness HRC 30-33
Ejector pins: SKD61, surface nitrided
Hot runner: domestic/imported options available
1. Cycle Analysis Comparison
Product Type | Injection Time | Holding Time | Cooling Time | Total Cycle |
|---|---|---|---|---|
Chopsticks | 1.0-1.5s | 1.5-2.0s | 2.0-3.0s | 4-6s |
Spoon | 1.5-2.0s | 2.0-3.0s | 5.0-6.0s | 8-10s |
Fork | 1.2-1.8s | 2.0-2.5s | 4.0-5.0s | 7-9s |
Knife | 1.0-1.5s | 1.5-2.0s | 3.0-4.0s | 5-7s |
Plate | 2.5-3.5s | 4.0-5.0s | 8.0-10.0s | 14-18s |
2. Energy Consumption Control Indicators
Electricity per ton of product: 800-1000 kWh
Cooling water recycling rate: ≥85%
Compressed air consumption: 0.8-1.2 m³/kg product
1. Online Inspection Items
Dimensional inspection: 100% inspection of critical dimensions
Weight control: sampling every 15 minutes
Appearance inspection: full coverage by automatic vision system
2. Type Testing Standards
Piercing test (fork): can penetrate 5 layers of 80g/m² copy paper
Load-bearing test (spoon): holds 200g liquid for 1 minute without deformation
Drop test (plate): no breakage after 3 drops from 1m height
3. Hygiene and Safety Indicators
Complies with GB 4806.7 food safety standard
Migration test: passes 3% acetic acid solution immersion
Heavy metal content: meets EU EN71-3 standard
1. Material Utilization Optimization
Runner scrap rate: ≤2%
Product weight deviation: ≤±3%
Recycled material ratio: 10-20% regrind can be added
2. Mold Investment Return
Case: 1×48 spoon moldMold investment: 180,000-220,000 RMBDaily output: 140,000-160,000 piecesInvestment payback period: 4-6 months (based on 3-year depreciation)3. Operational Cost Analysis
Labor cost: 0.8-1.2 RMB/kg product
Energy cost: 1.0-1.5 RMB/kg product
Mold maintenance: 0.3-0.5 RMB/kg product
1. Biodegradable Material Adaptation
PLA mold: mold temperature 20-40°C, rapid cooling design
Starch-based materials: enhanced venting, prevents corrosion from degradation gases
PBS/PBAT materials: optimized runner anti-sticking design
2. Production Process Environmental Protection
Closed-loop cooling water system
Injection machine energy-saving modification (saves 20-30% electricity)
Waste gas collection and treatment system
3. Product Environmental Certifications
Compostable certification (EN13432)
Forest certification (FSC)
Carbon footprint certification (ISO14067)
1. Mold Structure Innovation
Quick mold change system (≤15 minutes)
Modular design (interchangeable cavity numbers)
Intelligent monitoring (real-time pressure/temperature feedback)
2. Process Technology Upgrades
Microcellular foaming technology (weight reduction 15-20%)
Gas-assisted molding (reduces sink marks)
In-mold labeling integration
3. Automation Integration
Robotic gate removal system
Direct connection to automatic packaging line
MES system data interface
1. Traditional Market Demand
Fast food chains: monthly demand 20-50 million sets
Airline catering: annual demand 3-5 billion pieces
Schools and institutions: centralized procurement of standardized products
2. Emerging Application Areas
Food delivery economy: annual growth rate 25-30%
Pre-made meal packaging: integrated food and tableware packaging
Outdoor recreation: lightweight portable tableware
3. Export Market Opportunities
Southeast Asian market: annual demand growth >20%
European and American markets: large replacement space for biodegradable tableware
Belt and Road regions: infrastructure construction supporting demand
The disposable tableware mold technology has formed a complete industry chain system, achieving standardization and scale in mold design, manufacturing, and production processes. With increasing environmental requirements and consumption upgrades, future disposable tableware molds will develop toward greater environmental friendliness, intelligence, and efficiency, providing reliable technical support for the global disposable tableware industry.