Forklift Pallet Placement Control with Posture-Based Fork Tilting
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Solution Overview
Problem
Existing cargo handling control devices for forklift trucks require excessive time to place a pallet due to unnecessary forward and backward tilting of the fork, even when the pallet is not tilted.
Innovation Solution
A cargo handling control device for forklift trucks equipped with sensors and controllers to detect the pallet's posture relative to the fork, allowing controlled tilting and withdrawal of the fork based on real-time sensor data to optimize pallet placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fork tilts forward and then backward to load the pallet, then the pallet can be placed on the loading surface, but the time required to place the pallet increases
Solution Approach 1:
The system uses detection sensors to detect the pallet's posture (tilted or not tilted) and provides feedback to the controller. Based on this feedback, the controller determines whether the fork needs to tilt forward or backward, eliminating unnecessary tilting operations and reducing the time required to place the pallet.
Solution Approach 2:
The system dynamically adjusts the fork's tilting action based on real-time detection of the pallet's posture. When the pallet is not tilted, the fork does not tilt forward or backward. When the pallet is tilted, the fork tilts accordingly to maintain proper alignment, making the operation adaptive and efficient.
2Ease of operation
If the fork tilts forward and backward regardless of pallet posture, then the pallet can be placed, but the operation becomes unnecessarily complex
Solution Approach 1:
The detection sensor provides feedback about the pallet's posture to the controller, which then determines whether the fork needs to tilt. This feedback mechanism simplifies the control logic by eliminating the need for fixed forward-backward tilting sequences, making the operation simpler and more intelligent.
Solution Approach 2:
The system automatically detects the pallet's posture and autonomously determines the appropriate fork action without requiring complex manual intervention. The controller self-adjusts the fork's tilting based on sensor input, reducing operational complexity.
Data Source
AI summary
A cargo handling control device includes: a fork lowering controller for controlling so that a fork holding a pallet is lowered toward a loading surface; a pallet posture determination unit configured to determine a posture of the pallet relative to the fork; a pallet placement controller for controlling so that the fork is placed on the loading surface depending on the posture of the pallet; and a fork withdrawal controller for controlling so that the fork is pulled out of the pallet. The pallet placement controller judges based on the posture of the pallet whether the fork is allowed to be pulled out of the pallet. When the fork is allowed to be pulled out of the pallet, the fork stops being lowered. When the fork is not allowed to be pulled out of the pallet, the fork tilts along the loading surface.