Simplified palletizing for bulky bags
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Industrial robotic palletizing is a standard material-handling application in modern times due to advances in software, vision systems, and hardware. Bag palletizing is simpler and easier than case palletizing for a few reasons:
- Bags are just easier to deal with. Because bags are generally round-shaped and bulkier than cases they require fewer palletizing patterns Those patterns are simpler than those of cases. Bags are also more malleable and are more resistant to collision damage. The robot can usually set the bag down as opposed to follow a ramping trajectory to minimize impact and collision when palletizing cases. These characteristics simplify motion, programs. This saves cycle time for bag palletizing.
- Robot tools can be highly customized, but bag palletizing frequently utilizes standard tools. The most commonly-used tool has a "claw of fingers" that open, extend below the bag, wrap around it, and close to grip it. To work with the tool, the bag rests on a roller conveyor. The rollers provide even spaces for the fingers to enter and close underneath the bag. The tool can also be mechanically adjusted to accommodate a wide range of bag sizes. Top vacuum suction is an option so that the effector can handle cases, cartons, or other loads. This tool design is universal, reliable in gripping, and capable of high-speed handling.
Above: SAS Automation standardized bag-gripper.
- No slip sheets. Bag pallets normally do not require slip sheets or tier sheets. This simplifies the application and cuts down cycle time.
- Cycle time: Bag palletizing generally is given more cycle time to meet the production rate.
- Nothing else does it as well as robotics. Bags are usually heavy, making them difficult for manual labor to palletize. Very round and malleable bags can be difficult for conventional palletizers. Robotic palletizers are the best way to palletize bag loads.