W. H. Leary offers several rejection solutions. Please review the following options or send us samples to help you decide which solution best fits your needs.
All of our rejection options use our patented RejectTrak™ technology. Unlike shift register methods for rejection of faulty product, WH Leary Company was the first to patent a new method of rejection. This technology tracks rejects from many different detection stations and removes the exact failure from the line, without disturbing in-line manufacturing. Leary also ties into your compression section and stalls based on the number of cartons that have been removed to maintain proper shingling. Additionally, this method can be integrated in any OEM’s rejection system.
Our rotary ejectors are designed to remove simple cartons out of a folder gluer at the trombone section of the machine. It has an 80 durometer molded disc that easily holds a rejected carton during removal. No specific carton gap is required when ejecting folding cartons. Each carton is thrown in a linear path straight to the catch frame. Cartons can be ejected at speeds of 2150 FPM, 650 m/min and 200,000 CPH because of our 10/15 millisecond response rate.
The knock-down ejector is mounted in the trombone section of the folder gluer and works well with all multi-fold cartons. This device is programmed to work with all Leary controllers and has a compensation feature which automatically adjusts the activation time based upon carton size, gap and machine speed.
Some cartons may be too large or complex to eject from your gluer. In this case, Leary offers a spray rejection option. Our system will identify each carton reject by spraying the defective carton so it can be manually removed at the end of the machine. Our atomizer spray head will spray only the rejected carton. You may use a colored spray or a ultra-violet spray that can be seen only with a black light fixture.