{"id":27625,"date":"2019-10-18T13:00:29","date_gmt":"2019-10-18T11:00:29","guid":{"rendered":"https:\/\/packaging-journal.de\/?p=27625"},"modified":"2020-08-21T17:23:30","modified_gmt":"2020-08-21T15:23:30","slug":"khs-unit-mould-control","status":"publish","type":"post","link":"https:\/\/packaging-journal.de\/en\/khs-unit-mold-control\/","title":{"rendered":"Digital control system for PET bottle production from KHS"},"content":{"rendered":"

Even with the most advanced machine, the stretch blow moulding process can be Differences in material distribution<\/strong> of the PET bottle. This has an impact on bottle quality and production efficiency. In order to optimise these parameters, KHS, in cooperation with the US company Agr International Inc. (Agr), has developed the Unit mould control<\/strong> developed.<\/p>\n

With this digital and automated process control system, which is connected to the KHS control system, the respective blowing stations for the InnoPET Blomax series are now regulated individually, thus minimising possible quality fluctuations in the stretch blow moulding process. This enables a Greater bottle stability<\/strong> with simultaneous reduced preform weight<\/strong> realise. This was previously a challenge, particularly for containers with a high proportion of recycled PET.<\/p>\n

The blow valves used in a stretch blow-moulding machine can wear differently. This means that the bottles blown with them change over the service life of the stretch blow-moulding machine depending on the station. In the production process, this can lead to deviations in material distribution and thus to varying bottle wall thicknesses.<\/p>

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Previously, parameters could only be adjusted for the entire machine and not for the individual stations. With the new digital control system Unit Mold Control, manufacturers optimise their blow moulding process by Individual settings for each station<\/strong>.<\/p>\n

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Frank Haesendonckx (Image: KHS Group)<\/figcaption><\/figure>\n

\u201eThis enables more precise control of the material distribution per station, minimising variations in wall thickness from mould to mould by more than 30 per cent,\u201c explains Frank Haesendonckx<\/strong>, Head of Technology at KHS Corpoplast.<\/p><\/blockquote>\n

Unit mould control adjusts settings fully automatically<\/h2>\n
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The inspection technology of the KHS Mold Control unit continuously measures the material distribution of each bottle (Image: KHS Group)<\/figcaption><\/figure>\n

The inspection technology of the Mold Control unit continuously measures the material distribution of each bottle and adjusts the settings for the moulding process. Fully automatic optimisation<\/strong> on. \u201eThe system identifies deviations in the individual moulding station. Using an algorithm, the variability is reduced without operator intervention and possible incorrect settings are avoided,\u201c says Haesendonckx<\/p>