Railroad Tie Plate Placement Machine Automation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for installing railroad tie plates on railroad tracks are labor-intensive and costly due to the need for manual handling of heavy plates, and existing machines often use inefficient stop-and-go methodologies with limited capacity for precise placement.
Innovation Solution
A semi-autonomous machine with a front, middle, and rear chassis, equipped with a material handler, hopper assemblies, and conveyor systems, including a vibrating plate feeder and ball transfer table, to retrieve and precisely place railroad tie plates along the track, allowing for efficient storage, transfer, and orientation of tie plates for accurate placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual labor is used to carry and place tie plates, then flexibility and precision in placement can be achieved, but labor intensity and cost increase significantly
Solution Approach 1:
The machine performs tie plate retrieval, transport, and placement automatically without continuous human intervention. The system serves itself by using onboard storage, conveyors, and placement mechanisms to complete the entire workflow, reducing labor from manual carrying to supervisory control
Solution Approach 2:
Manual mechanical carrying and placement by laborers is replaced with an automated mechanical system comprising conveyors, robotic placement mechanisms, and control systems. This substitution maintains placement precision while dramatically improving productivity
2Manufacturing precision
If stop-and-go methodology is used for tie plate placement, then precision can be maintained, but production rate decreases
Solution Approach 1:
The machine eliminates stop-and-go operations by implementing continuous movement along the track. Tie plates are retrieved, transported, and placed in a continuous workflow without repeated stopping and starting, maintaining precision through active control systems while improving production rate
Solution Approach 2:
The system transitions from static stop-and-go placement to dynamic continuous operation. The placement mechanism adjusts its position and timing dynamically while moving, using real-time control to maintain accuracy despite continuous motion
3Ease of manufacture
If heavy tie plates are handled manually, then cost and labor burden increase, but simple equipment is required
Solution Approach 1:
The tie plate handling system is divided into separate functional modules: retrieval mechanism, onboard storage hoppers, conveyor systems, and placement mechanisms. This segmentation allows each component to be optimized independently while working together to handle heavy plates efficiently
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The machine significantly reduces labor costs and improves efficiency by enabling the precise placement of tie plates at a high production rate, capable of handling large quantities and maintaining alignment and orientation for proper installation.
Implementation Method 1
a vibration plate feeder assembly positioned at a downward angle for singulating and properly orienting the railroad tie plates
Implementation Method 2
conveying the oriented at least one railroad tie plate from the ball transfer table assembly to a gravity conveyor
Data Source
AI summary
A method and apparatus for retrieving and placing tie plates is disclosed. The machine may place at least one railroad tie plate in a hopper assembly for storage and transfer of the at least one railroad tie plate, transfer the at least one railroad tie plate from the hopper assembly to a conveyor assembly, upright the at least one railroad tie plate, singulate the at least one railroad tie plate, orient the at least one railroad tie plate, and place the at least one railroad tie plate on a railroad tie.