CASE STUDY: Automatic weight check for Pick to Light System

The Problem: Automatic inspection of split case cartons

A major distributor of books and magazines requested a system that would automatically check each pick orders by weight. The system must interface to the legacy AS400 host system and the existing conveyor and pick to light system.

The Solution: High Accuracy Checkweigh and carton reject system

CASI proposed a checkweigh system using a high accuracy 971 checkweigher and SolidCheck and SolidComm to perform the operation.

System Overview

Magazines and books are picked into a shipping container using pick to light.

Cartons stage in zero pressure accumulation before the scale and are metered onto the in motion scale one at a time.

The barcode is scanned from the side in a picket fence orientation as the carton is conveyed onto the scale. A database lookup is performed to determine the expected weight of the carton using SolidComm.

Cartons that pass the check weigh process are conveyed to a gravity spur and palletized.

Cartons that fail are diverted to QC where the order is manually checked. Once checked, the carton is re-inducted and processed again by the checkweigher.

Benefits from the new efficiencies