As industries such as consumer electronics, automotive electronics, LED, and new energy continue to develop rapidly, manufacturers are demanding higher precision, better consistency, and faster production efficiency for PCB dispensing processes. Traditional manual dispensing can no longer meet the requirements of modern automated production lines.
In this article, we will use the SEC-DH400L Inline Dispensing Solution from Second Intelligent as an example to explain how modern inline dispensing equipment helps manufacturers improve production efficiency, dispensing accuracy, and product quality.
What is an Inline Dispensing Machine?
An inline dispensing machine is an automated dispensing system that can be integrated directly into a production line. It enables automatic product in-feed, visual positioning, dispensing, inspection, and out-feed without manual intervention.
Compared with offline dispensing systems, inline dispensing equipment provides:
– Higher automation level
– Reduced labor cost
– Stable dispensing quality
– Higher production throughput
– Easier MES integration
– Better suitability for mass production
Project Overview: PCB UV Glue Dispensing Solution
The SEC-DH400L solution is designed for UV glue dispensing machine on PCB surfaces. The customer requirements include:
– UV glue dispensing on PCB products
– 55cc syringe glue supply
– Dual-valve synchronous dispensing
– Barcode scanning system
– CCD vision positioning
– Laser height measurement
– Automatic weighing module
– Vacuum nozzle cleaning system
– SMEMA interface support
The target production capacity is 1,000 pcs/hour with one operator.
Why Vision Systems are Important for PCB Dispensing
One of the biggest challenges in PCB dispensing is product positioning deviation. Issues such as PCB offset, fixture tolerance, and uneven product height can lead to dispensing defects.
The SEC-DH400L is equipped with a CCD vision system and laser height measurement module to ensure accurate dispensing positioning and automatic path correction.
CCD Vision Positioning System
The CCD vision system can automatically identify:
– Mark points
– Product position
– Barcode and QR code
The system automatically corrects dispensing path deviations and improves dispensing consistency.
Laser Height Measurement and Compensation
Before dispensing, the laser sensor automatically measures the product height. During operation, the Z-axis dispensing height is automatically compensated based on the measurement result.
If the product height exceeds the preset tolerance range, the system triggers an alarm to reduce defective products.
Piezo Jet Valve for High-Speed Dispensing
The SEC-DH400L uses a piezoelectric jet valve system for high-speed and high-precision dispensing.
Advantages of piezo jet valves include:
– Faster dispensing speed
– Higher accuracy
– Stable glue volume control
– Better performance for micro dispensing
– Lower maintenance frequency
The valve supports up to 800Hz operating frequency and can handle glue viscosity from 0 to 100000 cps.
Automatic Glue Weight Calibration
To ensure dispensing consistency, the machine includes an automatic weighing module.
The system automatically dispenses glue into a weighing cup, compares the actual glue weight with the preset value, and automatically adjusts dispensing parameters when deviation occurs.
Vacuum Nozzle Cleaning System
UV glue and epoxy materials can easily cause glue residue and nozzle clogging. The vacuum cleaning module automatically removes residual glue from the nozzle through vacuum suction, improving long-term production stability.
Main Technical Specifications
Key technical parameters of the SEC-DH400L include:
– XYZ Stroke: 400 × 400 × 100 mm
– Repeatability: ±0.015 mm
– XY Max Speed: ≥800 mm/s
– Z-axis Max Speed: ≥200 mm/s
– Operating System: Windows 10
– Glue Supply Method: 55cc syringe
– Power Supply: AC220V
Industries and Applications
The SEC-DH400L inline dispensing solution is suitable for:
– Consumer electronics
– Automotive electronics
– LED industry
– New energy battery manufacturing
– Medical electronics
– PCB assembly
Typical applications include:
– UV glue dispensing
– PCB protection coating
– FPC reinforcement
– Camera module dispensing
– Micro dispensing applications
Conclusion
As manufacturing automation continues to evolve, high-speed and high-precision dispensing equipment has become an essential part of modern electronic production.
The SEC-DH400L inline dispensing machine combines CCD vision, laser height measurement, piezo jet valve technology, automatic weighing calibration, and intelligent automation to help manufacturers improve product quality, production efficiency, and overall competitiveness.
