Gluing of Folding Cartons Using Non-Contact Glue Application

The manufacturing process for the production of folding cartons is becoming technically more and more elaborate and placing ever higher demands on quality assurance systems. A modern, powerful system that can cope with the highest technical requirements of fast-running and fully automated machines is available in the modular Xtend system.

Gluing for folding cartons
Folding carton gluing machines process carton blanks from die cut sheets and fold them into a finished product. In the case of cartons for branded articles or pharmaceutical packaging, the folding cartons are subsequently erected and filled in automatic packing machines. Frequently cartons are folded in various location on the machine before the glue is applied.

Use of hotmelt glue
Hotmelt glue is characterised by its particularly fast curing and its ability to also adhere to impermeable material such as foils. In special designs it is also used together with dispersion glue. In this way the point of adhesion is rapidly made, so that two glued surfaces do not shift or even open before the cold glue has cured.

Use of cold glue
Cold or dispersion glue is used because it is inexpensive and simple to process. It is characterised by the long-term stability of the point of adhesion. The robust, high-performance glue application guns by Baumer hhs guarantee the greatest possible production reliability with minimum maintenance. The application quantity can be adapted to suit the product and the machine speed at any time. The minutest quantities of glue are applied in dot mode.

Securing the product quality
Optional monitoring systems by Baumer hhs examine each passing product for predefined criteria. Code readers identify the packaging in order to avoid mix-ups; glue sensors check the correct application of the glue before closure. Defective products can be ejected without stopping the machine.

Accelerating production speeds and increasing demands on quality, flexibility and productivity expose the limitations of conventional adhesive application with glue wheels.

Baumer hhs' Vario Glue system applies glue patterns "to the millimeter" using non-contact guns at cycle rates which match machine speeds while applying the most complex possible glue patterns. Baumer hhs harnesses modular components including high pressure glue supply, fast cycling and wear-resistant electromagnetic guns, together with user-friendly controllers which store patterns for instant recall and re-run.

Modularity allows adding function to your system. Side seam bottom gluing with one or two guns and individually programmable multiple applicator heads are available. A combined application of cold and hot-melt adhesives is also available.

Optional is an integrated system for code reading, side seam detection or data export ensuring error free production. When needed with code reading, glue verification or cameras.