In the fast-paced world of packaging; precision, speed, and quality assurance are more crucial than ever. Leary’s latest innovations in glue application and inspection technology together are setting new benchmarks for performance and sustainability in the folding carton industry. With the introduction of a complete, hands-free gluing solution, manufacturers can now achieve efficiency and consistency. These technologies are not just incremental improvements—they are overall tools that improve productivity, reduce waste, and ensure the highest levels of quality control.
The combination of the Sempre-i cold glue application valve with CleanStart and LearyVIEW Flex camera inspection offers a comprehensive, integrated solution that covers everything from side seam gluing on the 4th panel to complex applications involving twenty or more glue valves, such as 6-pack beverage baskets.
The Sempre-i cold glue valve with CleanStart technology advances the glue application process by providing advantages over traditional glue wheel systems. Precise application in a controlled and accurate extrusion method removes glue sling and stickers caused by glue wheel systems. Glue wheel application methods require constant cleanup, regular maintenance and even then, result in cartons sticking together. With virtually no daily maintenance, operators can focus more on production and less on downtime.
The Sempre-i allows precise start/stop points in glue application, eliminating unwanted tabbing and reducing glue consumption by as much as 50% compared to glue wheels—especially when utilizing spot or stitch patterns. Real-world case studies show that replacing lower glue wheels with Sempre-i extrusion valves can reduce downtime by one hour per day, increase run speeds by 20%, and eliminate internal stickers on cartons.
Beyond glue savings, the CleanStart feature of the Sempre-i eliminates the need for operators to manually wipe glue nozzles after stops. It automatically seals the nozzle during machine stops, reducing the risk of clogs and ensuring that the machine is always ready to resume production. This not only improves uptime but also enhances operator safety by keeping hands out of the machine. From a performance standpoint, Sempre-i valves operate at speeds over 700 m/min, removing limitations to machine throughput. With a 1 billion cycle lifespan, wide glue viscosity compatibility, and unmatched end-to-end precision, Sempre-i extrusion gluing with CleanStart is a superior alternative for any high-output packaging operation.
An effective overall gluing solution includes adhesive inspection to ensure product quality. The LearyVIEW Flex camera solution is designed to deliver maximum inspection with minimal setup. Thanks to high-speed capabilities of 700m/min, the LearyVIEW Flex system keeps pace with today’s fastest production lines—without sacrificing quality.
A significant advantage of LearyVIEW Flex is its wider Field of View (FOV) compared to traditional sensors. This enables the system to detect both glue presence in the correct locations and unwanted glue specks anywhere on the product. By using fixed camera locations, operators are required to align the glue line to a pre-approved image, standardizing quality and minimizing the chances of human error.
The Flex system also reduces the need for multiple sensors by using a single camera to detect glue, skew, flaps, folds and handles. Plants no longer have to setup individual sensors for each application, one camera is used for multiple applications. Set-ups are fast and intuitive with up to (4) Flex cameras making this suitable for even the most complex jobs. With auto-learn capabilities, operators simply run three cartons through the machine, and the camera auto-calibrates by applying predefined tolerances. This streamlines job changeovers and reduces training needs.
Visual imaging of each carton confirms accurate inspection, visible on the Monet operating screen. Advanced features like dynamic edge finding further enhance accuracy by checking alignment of glue with the actual position of the carton, not just the camera’s view.
Finally, for cartons that do not meet intended quality standards, Monet offers the ability to review the rejected carton images, adding a layer of transparency and control, making troubleshooting faster and more effective. View the exact reasons on the screen that were used to determine a reject.
Leary’s combined gluing and inspection advancements are changing how packaging operations approach quality assurance. With the Sempre-i extrusion with CleanStart technology and LearyVIEW Flex camera system, companies can achieve faster production, reduced waste, improved safety, and superior product quality—all in one streamlined solution.
For manufacturers looking to upgrade from glue wheels or outdated inspection methods, or continue to add automation technology advancements to their processes, Leary’s cutting-edge solutions offer a clear and compelling path forward. Whether you are gluing a simple side seam or managing complex carton designs, Leary helps you do it cleaner, faster, and smarter.
