Labels printing quality inspection system
The labels printing quality inspection system mainly consists of several key components: high-speed cameras, industrial-grade lenses, LED light sources, signal interaction modules, image processing software, and mechanical frames. Among these, critical parts such as line-scan cameras, lenses, and image capture cards are all of high-quality, ensuring stability and reliability. Customized devices including light sources, signal interaction modules, and mechanical frames are either produced in-house or sourced from customized brands, guaranteeing quality while flexibly addressing and thoroughly considering clients' special requirements.
Description
High-Speed Line-Scan Camera
Adopting a line-scan color camera with fast acquisition speed, excellent imaging performance, and compact dimensions, suitable for large-scale applications.
Dedicated Lens
The imaging lens of the detection system is an industrial-grade lens, offering superior image clarity, distortion control, and better color and detail reproduction compared to other brands.
LED Dedicated Light Source
To ensure optimal imaging for most materials, a specially customized LED light source with a cavity reflector design is used. The light diffuses uniformly through the tunnel cavity, eliminating laser interference, hot stamping effects, and surface reflections, resulting in stable and high-quality product images—a significant advantage over conventional bar light sources.
Label Quality Detection Dedicated Software System
The company has a professional R&D team that, after 10 years of continuous research and development, has created multiple proprietary detection software solutions tailored to the diverse needs of the printing industry. The software features user-friendly interfaces, with new products requiring only 30 seconds of initial setup.
The detection software employs a distributed computer architecture, ensuring excellent scalability. Different detection accuracies can be set across regions based on quality standards, enabling zone-based inspection. The software meets fundamental label industry requirements with its intuitive and practical interface.
Electrical Support System
To enhance device stability, all electrical components are high-end. The electrical control module consists of four parts: the control system, signal transmission and control unit, image acquisition unit, and power distribution unit.
Specification
Power Supply Voltage
Single-phase 220V, 50/60Hz
Power Rating 5KW
Maximum Paper Feed Size 330 mm
Maximum Inspection Size 320 * 300 mm
Minimum Inspection Size 50 * 30 mm
Maximum Feed Roll Diameter 600 mm
Maximum Take-up Roll Diameter 600 mm
Resolution 0.08mm
Inspection Speed
80 meters per minute (varies depending on label size, inspection content, and accuracy; minimum detectable defect area: 1mm²).
High Precision Mode
50 meters per minute (varies based on label size, inspection content, and accuracy).
Defect Detection
Blurry printing, missing ink, dirt spots, misregistration, color deviation
Minimum Color Difference Detection
ΔE > 3 (after camera imaging)
Machine Weight 600kg
Dimensions
1750 (L) * 1140 (W) * 1600 (H) mm
Network Cable Length 30 meters
Barcode Detection
1D barcodes: EN8, EN13, EN39, EN128 (line spacing ≥1.5mm)
2D barcodes (size ≥10*10mm, must be clear; varies by label content)
Excludes variable codes.
Detection Software System
Dedicated visual inspection software
Skyeye (Version V5.5)
General defect detection module
Color difference detection module
Electrical Components
Machine controller: Dedicated PLC
Inspection host: 64-bit PC
Display unit: 23-inch
Keyboard & mouse: 1 set
Traction motor: Servo motor
Power supply: Meanwell (Taiwan)
Inspection Section
4K line-scan camera: 1 unit
Color optical imaging lens: 1 unit
Image processing system: 1 set
High-precision encoder: 1 set
Special lighting system: 1 set
Signal detection system: 1 set
Special 3D lighting system: 1 set
Paper Feed Section
High-precision magnetic particle feeding system
Tension settings: Auto-calculated or manual
Roll stop function available
Real-time display of paper feed diameter
Real-time display of paper feed tension
Manual paper roll clamping
Take-up Section
Servo-driven take-up
Tension settings: Auto-calculated or manual
High-precision edge-correction system (C-type)
Real-time display of take-up diameter
Real-time display of take-up tension
Manual roll clamping
Unsuitable Inspection Items:
White adhesive spots, varnish defects, tiny bubbles, small indentations (dents), and minor wrinkling on transparent label backing paper (requires die-cut position inspection).
Partial laser film and small text—already unclear/invisible in camera images. Defects are either undetectable or not clearly visible in captured images.
