Bottle Infrared Imaging Inspection

I. Product Introduction

1. Performance Overview

The MT-PE-XL-C1-02 is a fully automated inspection system designed for evaluating the quality of aluminum foil seals on PET/PE bottle caps, with a maximum throughput of 300 bottles per minute.

The system employs a non-contact, inline inspection approach, using thermal imaging to capture and accurately characterize the heat distribution pattern of the aluminum foil within each cap. This ensures stable, reliable, and precise inspection results.

Its detection accuracy surpasses comparable systems both domestically and internationally. At the core of the system lies proprietary deep learning technology, developed and refined through more than a decade of in-house R&D, delivering unmatched inspection performance and reliability.

2. Applicable detection objects

4. Performance and Parameters

1).Maximum inspection speed of over 300 bottles/minute

2).Adaptive product tracking

3).High-speed, accurate rejection of defective products

4).Human-machine interface operation

5).Light alarm upon impact

6).Chinese language menu

7).Maotong's unique DSP digital signal processing algorithm

8).24-hour remote assistance

9).Continuous rejection and shutdown

10).Applicable cap diameter: 20-200mm

11).Applicable bottle diameter: 25-250mm

12).Bottle height: ≤500mm

5. Detection Accuracy

1).Detection Rate: ≥99.99%

2).False Rejection Rate: ≤0.03%

6. Equipment Inspection Principle

After electromagnetic heating of the aluminum foil, it melts the heat-sealing film, completing the seal. Heat is then transferred to the bottle cap through heat conduction. The heat distribution on the bottle cap surface is captured by an infrared thermal imaging camera. This heat distribution directly reflects the degree of compression between the gasket and the bottle cap, which indirectly reflects the seal quality. If a seal defect occurs, the heat distribution will be abnormal, as shown in the following relationship:

After obtaining the thermal imaging image, different defects can be detected by combining it with Maotong image processing software methods.

II. Installation Specifications

2.1 For optimal inspection performance, the equipment should be installed downstream of the electromagnetic sealer, positioned on a straight conveyor section 1.5–2 meters in length.

2.2 Before powering on, carefully verify that all cables are securely connected and ensure the grounding wire of the control cabinet is properly fixed.

2.3 Confirm that the power supply is correctly configured: single-phase AC 220V, 50 Hz, with a total power consumption of 250 W.

2.4 Verify that the compressed air supply is connected and meets requirements: 4–8 bar, with air quality compliant with industry standards.

III. Equipment Structure and Appearance

3.1 Dimensions: 600 mm × 500 mm × 1700 mm
3.2 Frame: Constructed from 304 stainless steel, designed for installation on a conveyor line
3.3 Net Weight: Approx. 50 kg

IV. Safety Precautions for Operation

Please observe the following guidelines to ensure safe use of the equipment:

4.1 Operation is permitted only by personnel with basic training.
         4.2 Maintenance and repair work must be carried out only by professionally trained personnel.
         4.3 Ensure all safety warnings and protective covers are in place before operating the machine.
         4.4 Do not operate the system with the cover open. Always shut off power and compressed air before removing covers.
         4.5 Keep hands away from the reject cylinder linkage while the machine is running.
         4.6 Do not block or touch the photoelectric sensor during operation; doing so may trigger abnormal reject cylinder movement and cause injury.
        4.7 Never disconnect electrical wiring while the equipment is powered on, as this may damage electronic components.
        4.8 When servicing the machine, attach a visible warning sign to prevent accidental injury.
        4.9 Before connecting external devices, ensure both the equipment and external devices are powered off. Reconnect power only after all connections are complete.
       4.10 As the internal electronic components are sensitive to static discharge, the frame and control cabinet must always be properly grounded.