Container Depalletizing System Fork Assemblies and Transfer Elevator
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Solution Overview
Problem
Material handling facilities face inefficiencies and high costs due to manual and non-automated processes in depalletizing and transferring containers, which hinder the speed and accuracy of shipping and storage operations.
Innovation Solution
A container depalletizing system comprising a reorientation station, check station, bypass station, depalletizing station, and downstream conveyor, utilizing fork assemblies and a transfer elevator to align, lift, and sequentially release layers of containers for efficient transfer to downstream stations, with a controller managing the process for alignment and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual processes are used for depalletizing and transferring containers, then operational flexibility is maintained, but processing speed and efficiency are reduced
Solution Approach 1:
The patent replaces manual mechanical operations with an automated robotic system comprising a robotic arm, end effector, and conveyor. The robotic arm automatically grasps containers using the end effector, transports them along the conveyor, and places them on downstream receptacles, eliminating manual labor while significantly increasing processing speed and consistency.
Solution Approach 2:
The system enables self-service operation through automated control mechanisms. The robotic arm is controlled by a controller that receives signals from sensors and operates autonomously to perform depalletizing and transfer operations without continuous human intervention, allowing the system to service itself and maintain continuous operation.
2Productivity
If automated robotic systems are implemented, then processing efficiency is improved, but system complexity increases
Solution Approach 1:
The robotic arm serves multiple functions within the system: it grasps containers from pallets, transports them along the conveyor, and places them on downstream receptacles. The end effector is designed with adaptability to handle different container types and sizes. This multi-functionality reduces the need for separate specialized machines, thereby managing complexity while improving efficiency.
Solution Approach 2:
The conveyor acts as an intermediary element that facilitates smooth transitions between different operational zones. It receives containers from the robotic arm, maintains them in a controlled environment, and delivers them to downstream receptacles. This intermediary component simplifies the overall system architecture by providing a structured flow path and reducing the need for complex coordination between all system elements.
3Productivity
If containers are handled rapidly, then throughput is increased, but accuracy and precision of placement may be compromised
Solution Approach 1:
The system incorporates sensors that detect container positions, pallet locations, and receptacle alignments in real-time. The controller receives feedback from these sensors and adjusts the robotic arm's movements accordingly to maintain precise placement accuracy even at high throughput speeds. This closed-loop control ensures that speed does not compromise precision.
Solution Approach 2:
The system performs preliminary alignment and positioning actions before the actual container transfer. The conveyor pre-positions containers and receptacles at optimal locations, and the robotic arm pre-calculates and pre-adjusts its trajectory. This preliminary action ensures that when the rapid transfer occurs, all components are already aligned, maintaining both speed and precision.
Data Source
AI summary
Container depalletization systems and methods may include various example depalletizing stations including a frame and a plurality of fork assemblies. For example, the frame may receive a stack of containers, and the plurality of fork assemblies may engage, lift, lower, and release layers of containers from the stack of containers to downstream stations or processes. In addition, the example depalletizing stations may include transfer elevator assemblies that may receive layers of containers from the plurality of fork assemblies and transfer the layers of containers to downstream stations or processes. Further, the example depalletizing stations may include movable frames that may move between a first position, at which layers of containers may be engaged and lifted by the plurality of fork assemblies, and a second position, at which layers of containers may be lowered and released by the plurality of fork assemblies and transferred to downstream stations or processes.