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Gob Forming

GobMaster

Precise Gob Management for BB operation

Plunger cylinder sensor technology is a well-proven function of the Heye Process Control, supervising and adjusting PB and NNPB production processes. The camera-based weight control of the Heye GobMaster now closes the gap for processes operating in BB.

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Function

The camera-based system offers the possibility to determine and control the gob weight and favourably exploits the additionally generated data for all production processes. Two cameras placed underneath the shears act as sensors, generating 3D gob images. The software logic determines geometric data of these digital 3D models, such as length, diameter, position and tilt angle. This data ultimately calculates the gob volume and weight.

In real-time, the cameras monitor the gob shape and where malfunctions or deviations are identified, the system immediately reacts and the Heye Process Control directly initiates rejection of the article at the hot end. Consequently, Heye stepper motors automatically correct these deviations by mechanically adjusting tube height and plunger position.

Advantages

 

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FAQs GobMaster

What is the GobMaster?

GobMaster is a camera-based system that precisely determines and controls gob weight using two cameras to generate 3D images of the gob. The software analyses these images to extract geometric data, enabling precise calculation of gob volume and weight.

The system continuously monitors gob shape in real time and promptly rejects any defective articles while automatically adjusting the tube height and plunger position to correct the deviations.

What type of camera does GobMaster use?

GobMaster uses matrix (area-scan) cameras that capture the entire gob in a single image. This enables more precise weight measurement compared to line-scan cameras, which reconstruct images line by line.

In contrast to stereo imaging systems, GobMaster achieves true 3D imaging with cameras positioned farther apart, resulting in a more accurate 3D gob model.

For which production processes can GobMaster be used?

For which production processes can GobMaster be used?

GobMaster is mainly designed for Blow & Blow (BB) production. For Narrow Neck Press & Blow (NNPB) process, it is recommended to use GobMaster in combination with Heye Process Control to achieve optimal results and ensure high-quality bottle production.

On which IS machines can GobMaster be installed?

GobMaster can be installed on all IS machines, including both single and tandem machines, across all centre distances, and for configurations ranging from single to quad gob. This means it covers the full operating range of IS machines. GobMaster can also be installed on IS machines from other manufacturers.

What are the benefits of GobMaster?
  • Process monitoring and control: GobMaster not only helps to control gob weight but also serves as a tool for monitoring gob loading.  By observing GobMaster’s images and curves, operators can quickly recognize problems and intervene to resolve issues, such as shear blade malfunctions or glass homogeneity problems originating at the feeder.
  • Higher operational efficiency: Reduces gob loading jam-ups that previously (without GobMaster) resulted in 5–10 minutes of downtime per incident.
  • Consistent, high product quality: Ensures tight gob weight tolerances for stable and reliable glass quality.
  • Reduced rejects and higher yield: Improves production output by minimizing defective gobs.
  • Cost-efficient operation: Reduced material and energy consumption, contributing to a fast ROI.
  • Increased automation and safety: Reduces manual interventions, improving efficiency and safe operation through automation.