Auto-Scraping Apparatus for Hard Rail Precision

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Solution Overview

Problem

Conventional scraping methods for work pieces are manual or semi-automatic, relying on human experience and are prone to errors, are difficult to learn, and require significant time, with semi-automatic machines being heavy and hard to operate.

Innovation Solution

An auto-scraping apparatus comprising a tracking device with a connecting frame, moving frame, lifting frame, and tool frame, along with a driving device featuring linear and rotating motion units, and a tool device with a relieving tool, all controlled by a computer using Lab-View software to simulate professional hand scraping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual scraping method is used, then scraping quality depends on worker experience, but it is time-consuming and difficult to learn

Engineering Contradiction:
Improvescraping qualityVSAvoidscraping time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical scraping operation with an automated scraping apparatus that uses a computer-controlled mechanism to guide the relieving tool. The automatic scraping device substitutes human hands and experience-based manual operations with a mechanical system that can be programmed and controlled, thereby eliminating the time-consuming nature of manual scraping while maintaining or improving scraping quality consistency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The scraping apparatus is designed to operate automatically without requiring continuous human intervention. The system can perform scraping operations autonomously based on pre-programmed parameters, allowing the process to serve itself rather than requiring constant human guidance, thus reducing both time consumption and the learning curve associated with manual scraping skills.

Inventive Principle:
Principle #25Self-service

2Extent of automation

If semi-automatic scraping machine is used, then automation is improved, but the machine is heavy and not easy to operate

Engineering Contradiction:
Improvescraping automationVSAvoidoperational ease
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The scraping apparatus is divided into multiple independent components including a tracking device with separate frames (connecting frame, moving frame, lifting frame, tool frame), a driving device with independent motion units, and a tool device. This segmentation allows each component to be optimized independently and simplifies operation by allowing the system to be controlled through modular units rather than a monolithic heavy machine.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent replaces heavy mechanical linkages and manual positioning mechanisms with computer-controlled motion units that use software algorithms to manage complexity. The control system substitutes complex mechanical operation with programmable logic, making the automated machine easier to operate despite its automation capabilities.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If manual scraping method is used, then flexibility in scraping is maintained, but scraping quality is subject to human error

Engineering Contradiction:
Improvescraping flexibilityVSAvoidscraping quality consistency
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The scraping apparatus incorporates dynamic adjustment capabilities through its movable frames and rotatable tool frame that can be repositioned and reoriented during operation. The system maintains flexibility by allowing real-time adjustments to scraping parameters and tool positioning while being guided by computer control, thus combining the adaptability of manual methods with the precision of automated control to eliminate human error.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The tracking device with its multiple frames and motion units incorporates feedback mechanisms that allow the system to monitor its own position and performance during scraping operations. This feedback loop enables the computer control system to make real-time corrections, maintaining scraping quality consistency while preserving the flexibility to adapt to different workpiece geometries and scraping requirements.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8459079B2Auto-scraping apparatus
Publication Date: 2013.06.11 NAT FORMOSA UNIV
  • US8459079B2 patent drawing
  • US8459079B2 patent drawing
  • US8459079B2 patent drawing

AI summary

An auto-scraping apparatus for a work piece of a hard rail has a tracking device, a driving device and a tool device. The tracking device has a connecting frame, a moving frame, a lifting frame and a tool frame. The moving frame is movably connected to the connecting frame. The lifting frame is movably connected to the moving frame. The tool frame is rotatably connected to the lifting frame. The driving device is connected to the tracking device and has two linear motion units and a rotating motion unit. One of the linear motion units drives the moving frame and the other linear motion unit drives the lifting frame. The rotating motion unit is mounted in the tool frame and has a rotating shaft. The tool device is detachably connected to the driving device and has a tool carrier and a relieving tool.