I. Core Functions
1. Human-Machine Interface (HMI)
• Provides a touchscreen or keypad interface for parameter settings (temperature, pressure, speed), process monitoring (real-time data curves), and fault diagnostics (alarm prompts, historical records).
• Example: Visualizes injection molding cycle stages (injection, packing, cooling, mold opening) via the 12.1-inch display.
2. System Control
• Integrates PLC (Programmable Logic Controller) or dedicated controllers for sequencing machine actions (e.g., mold clamping, injection, ejection).
• Supports multi-stage pressure/speed control for diverse materials (PP, ABS, PC) and mold requirements.
3. Data Management & Networking
• Stores process recipes (hundreds of parameter sets) with USB/network export/import capabilities.
• Optional industrial Ethernet (EtherCAT, Profinet) or IoT modules for remote monitoring and production data collection.
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II. Technical Specifications (Typical Values)
【表格】
Parameter Description
Screen Size 12.1 inches (≈30.7 cm diagonal)
Resolution 800×600 (SVGA) or 1024×768 (XGA); premium models support 1280×800 (WXGA)
Display Type TFT LCD (true color) with LED or CCFL backlight
Touch Technology Resistive (durable for industrial use) or capacitive (multi-touch, faster response)
Protection Rating IP65 (front panel dust/waterproof) for oil/dust-prone environments
Operating Voltage DC 24V (standard industrial) or AC 100-240V (wide input)
Interfaces Serial (RS232/RS485), Ethernet, USB, IO expansion ports (sensors, actuators)
OS Embedded Linux, Windows CE, or RTOS (Real-Time Operating System)
Environment Operating Temp: -10°C to 50°C (some models: -20°C to 60°C); Storage: -20°C to 70°C
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III. Application Scenarios
1. Standard Injection Molding Machines
• Controls hydraulic/electric machines (e.g., Haitian, Chen Hsong, Yizumi).
• Example: Displays injection pressure curves and mold protection settings for 50-500 ton clamping force machines.
2. Specialized Equipment
• Dual-shot or vertical molding machines requiring multi-screen coordination.
• Example: Supports rotary table control for dual-color processes with real-time parameter switching.
3. Automated Production Lines
• Integrates with robots, conveyors, and vision systems for full automation.
• Example: Syncs mold opening with robotic part removal via Ethernet signals.
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IV. Selection Guidelines
1. Compatibility Verification
• Confirm interface protocols (CAN, Modbus) match machine controllers (e.g., KEBA, Syntec).
• Check physical dimensions (cutout size, mounting depth) for cabinet fit.
2. Performance Requirements
• Basic Models: Resistive screen + SVGA for single-process machines.
• Premium Models: Capacitive screen + WXGA + multi-core processors for complex tasks.
3. Brands & Certifications
• Prioritize CE/UL-certified suppliers (e.g., Siemens, B&R, Advantech) for EMC compliance.
• Example: Siemens SIMATIC HMI offers preconfigured injection molding software.
4. Scalability
• Reserve IO/communication ports for future upgrades (e.g., servo drives, sensors).
• Example: Supports OPC UA for MES system integration.
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V. Maintenance & Troubleshooting
1. Common Issues
• No Display: Check power input, backlight driver, or screen cables.
• Touch Failure: Recalibrate via system menu or replace touch film.
• Communication Loss: Verify serial/Ethernet settings (baud rate, IP address).
2. Maintenance Tips
• Clean screens regularly (industrial alcohol + lint-free cloth) to prevent oil buildup.
• Replace backlight tubes every 2 years (LED models last up to 50,000 hours).
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VI. Example Products
1. Original Equipment (OEM) Panels
• Model: Haitian HT-HMI121 (12.1", resistive, Mars series compatible).
• Features: Preloaded Haitian process software with mold protection.
2. Third-Party Universal Panels
• Model: Weinview MT8121iE (12.1", capacitive, Codesys-compatible).
• Advantage: 30-50% lower cost than OEM, multi-brand support.