Motorised Roller Synchronisation for Heterogeneous Package Handling
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Solution Overview
Problem
Existing packaging ordering systems are inefficient and unstable, particularly when handling heterogeneous packages of different sizes and types, leading to accumulation, damage, and incorrect sequencing, which causes delays and safety risks.
Innovation Solution
A system with synchronised transport means having independent motorising means, allowing precise control of package movement and preventing accumulation, with a processing unit that sends predefined velocity and stop signals to each motorising means, ensuring safe and efficient handling of various package sizes and types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If gravity-based rollers are used for package movement, then energy consumption is reduced, but package stability deteriorates causing accumulation and damage
Solution Approach 1:
The system transitions from static gravity-based rollers to dynamic motorised rollers that can adjust their rotation speed and direction. Each roller is equipped with a motor controller that receives signals from a central controller to dynamically adjust movement parameters, enabling precise control over package flow and preventing accumulation while maintaining energy efficiency through controlled operation.
Solution Approach 2:
The system implements feedback control through sensors that detect package position, velocity, and accumulation status. This information is fed back to the central controller, which adjusts roller motorisation in real-time to maintain stable package flow. The feedback mechanism prevents package accumulation by detecting and responding to flow variations, thereby maintaining reliability while managing energy consumption.
2Ease of operation
If motorised clutched rollers with single common motorisation are used, then package movement control is improved, but package stability deteriorates due to velocity differences causing accumulation and damage
Solution Approach 1:
The system divides the common motorisation into multiple independent motor units, each controlling individual rollers or roller groups. This segmentation allows each motor to operate independently with its own controller, eliminating velocity differences between rollers that cause package instability. Each motorised unit can be precisely controlled to maintain synchronous movement, preventing accumulation and damage while retaining ease of operation.
Solution Approach 2:
The system applies local quality control by enabling each roller or roller group to have independent velocity control based on local conditions. The central controller can adjust individual roller speeds to accommodate variations in package characteristics, positions, and flow requirements, thereby maintaining package stability throughout the system while preserving operational flexibility.
3Reliability
If clutched rollers are used to handle strain variations, then individual roller protection is improved, but ordering sequence deteriorates due to package rotations and overturning
Solution Approach 1:
The system uses feedback from sensors monitoring package position, orientation, and roller load to dynamically adjust motorised roller operation. When strain variations are detected, the controller modulates motor speed and torque to maintain continuous, smooth package movement without clutching. This prevents package rotations and overturning that disrupt ordering sequences, while still protecting rollers from excessive strain through controlled operation.
Solution Approach 2:
The system maintains continuous rotation of all motorised rollers to ensure uninterrupted package flow. By eliminating the stop-start clutching mechanism, the system ensures continuous movement that prevents package instability. The motor controllers adjust speed continuously to handle strain variations, maintaining both roller protection and ordering sequence integrity through smooth, uninterrupted operation.
4Adaptability or versatility
If heterogeneous packages are handled with clutched rollers, then package size variation accommodation is improved, but ordering precision deteriorates due to package pivoting and rotation
Solution Approach 1:
The system applies local quality control by enabling independent velocity adjustment for different roller sections based on local package characteristics. Sensors detect package size, shape, and position, and the controller adjusts individual roller speeds to accommodate heterogeneous packages without causing pivoting or rotation. This maintains ordering precision while preserving adaptability to various package types.
Solution Approach 2:
The system uses dynamic control to adapt roller velocities in real-time based on package characteristics. Motorised rollers can independently adjust their speed and acceleration profiles to match the specific requirements of each package, preventing pivoting and rotation that disrupt ordering. This dynamic adaptation maintains both precision and versatility in handling heterogeneous packages.
Data Source
AI summary
A system for ordering elements. The system includes i) a source with a plurality of elements that are randomly arranged; ii) a plurality of source output lines associated to the source; iii) a synchronising station with a plurality of synchronising channels; and iv) a processing unit configured for starting up and timing the functions of one or more from among the source with a plurality of elements, the plurality of source output lines and the synchronising station. The processing unit has a synchronising module configured for sending, independently, to each motorising means, one from among a setting signal of a predefined velocity or a stop signal. Also included is a method for ordering elements that describes the functions of the corresponding system.