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Vision Systems

Glass Inspection

Machine Vision for Glass Inspection 

Glass production is an ongoing process characterized by large volumes and high speed. Our glass tube inspection systems have so far inspected more than 70 billion Km of glass tubing – half the distance to the Sun.

We are world leading in glass inspection technology and have been well established in the market for many years. We are always looking for new challenges and areas where we can apply our knowhow.  

Among the systems delivered are:

  • Tableware inspection in the cold end
  • Tableware inspection in the hot end
  • Glass tube inspection on line
  • Glass tube inspection off line
  • Glass tube end inspection
  • Flat glass mobile phones
  • Preform glass rods for optical fibre
  • Capillary tubes inner diameter measurements  

The first cold end tableware inspection systems were developed in 1994. The systems inspect before packaging.  

The hot end system “HETI” incorporates the dynamic light box, where several illumination patterns can be generated. This method allows different inspections to be done in one location. This is important as conveyor space in the hot end of glassworks is limited.

This system displays production statistics for the hot end operators so they can track the operation of each tool in the forming process. Monitoring the production in the hot end avoids producing large number of defects. The operators do not have to wait for the lehr time and reports from the cold end. 

In glass tubing we are world leading and our systems are recognized as the industry standard. The first systems were delivered in 1996 and today our SK 3000 systems cover all sizes and production speed up to 15 metres a second. The systems will detect airlines and stone and knots down to 5µ.

JLI has published many articles in the glass magazines over the years. 

Capillary tubes with a diameter of just 12 µ are measured to an accuracy of 50 nm by using special optics and illumination techniques. The capillary tubes are often used in medical devices and the inspection and the systems are validated to FDA requirements.

JLI Glass Inspection Systems are custom designed turnkey solutions for measuring dimensions, shapes, surface defects and material distribution.

The systems cover a wide range of production processes in both the hot and cold-end. All equipment is designed for the relevant environment and can withstand the tough conditions on a glass production floor.

General features/benefits of JLI turnkey systems include:

  • Custom made
  • Adapted to existing production lines
  • Internet connection for support
  • Excellent reliability track records
  • Special applications

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