I. Applicable Products
Whole PVC soft gel shoe uppers, sandal strap surfaces, shoe decorations, 3D shoe upper patches, sports and casual shoe uppers, as well as colorful drip-molded uppers for children’s shoes. The finished products are soft, with layered three-dimensional colors, slip resistance and great bending durability.
II. Core Equipment Composition of the Complete Production Line (Standard Mass Production Line)
Integrated Main Line Equipment (Continuous Circulating Track)
12-color Fully Automatic Dripping Machine Specially for Shoe Uppers
- Large worktable: 700×950mm, compatible with aluminum molds for integral shoe uppers
- 3-axis servo control, repeated positioning accuracy of 0.02mm; supports independent dispensing for 2 sets of molds simultaneously
- Stores programs for 200 sets of shoe upper patterns; one-click recall for style change, multi-color layered dispensing
Double-layer Independent Temperature Control Tunnel Oven (Core of Main Line)
- Upper track: Pre-baking for surface patterns
- Lower track: Overall curing of base material
- Adjustable sectional temperature ranging from 80–220°C, variable frequency speed 0.5–3m/min
- Hot air circulation, thermal insulation design for low power consumption; prevents local scorching and discoloration of shoe uppers
Water Circulation Cooling Table (Surface Pre-cooling Station)
Rapidly cools baked molds down to below 40°C to avoid damaging the base layer and pattern bleeding
Automatic Base Material Pouring Machine
Evenly spreads base material over large areas with precise glue volume control, ensuring uniform thickness of shoe uppers without material shortage or air bubbles
Water Cooling Shaping Tank
After secondary baking of base material, molds are rapidly cooled in water for full PVC shaping and easy demolding
Automatic Mold Return Conveyor Track
Empty molds are automatically conveyed back to the dispensing machine after demolding, forming a fully closed-loop circulation without manual mold transportation
Auxiliary Supporting Equipment (Workshop Essentials)
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PVC Raw Material Mixing & Vacuum Defoaming Machine
Mixes PVC paste, color paste and stabilizer, and removes air bubbles under vacuum to avoid pinholes and pits on shoe uppers.
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Aluminum Mold Engraving Machine / Electroforming Mold Equipment
Used for mold making of concave-convex patterns on shoe uppers. 6061 aluminum molds are widely adopted for uniform heat conduction.
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Air Compressor + Air Storage Tank + Air Dryer
Supplies stable air pressure for the dispensing machine.
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Chiller
Provides continuous circulating cooling water for cooling tables and cooling tanks.
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Mold Cleaning Station & Drying Station
For cleaning molds before repeated production cycles.
III. Complete Standardized Production Process (7 Closed-Loop Steps)
1. Raw Material Mixing & Defoaming
Mix PVC paste resin, DINP plasticizer, calcium carbonate filler, heat stabilizer additives and color paste, then conduct vacuum defoaming for 10–15 minutes and set aside for use.2. Automatic Layered Dispensing & Coloring
Send aluminum molds into the dripping machine, dispense different colored PVC paste layer by layer according to shoe upper patterns to complete multi-layer 3D patterns in one go.3. Pre-baking & Plasticization in Upper Tunnel
Low-temperature pre-bake the surface patterns to semi-cure colored textures and prevent color mixing and edge bleeding during subsequent base material coating.4. Water Cooling for Molds
Rapidly cool down high-temperature molds to fix the surface patterns before transferring to the base material station.5. Fully Automatic Base Material Pouring
Cover the whole mold plate with transparent / solid-color PVC base material to form the shoe upper substrate, with overall thickness controlled at 1.2–3mm.6. High-temperature Curing in Lower Tunnel
Fully vulcanize the base material at high temperature to integrate the surface layer and base material as a whole, free of cracking and delamination.7. Water Cooling Shaping → Demolding & Inspection → Mold Circulation
After water cooling, workers can easily peel off complete shoe uppers from molds, trim flash and conduct quality inspection. Empty molds are automatically conveyed back to the dispensing station for cyclic production.
Post time: Jun-16-2026