Continuous Spool Feed Centerless Grinding System
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Solution Overview
Problem
Conventional centerless grinders face delays in processing elongated workpieces from wire stock, as the grinding process starts only after manual unwinding and cutting, and there is a need for continuous feeding and wrapping of wire stock during grinding.
Innovation Solution
A centerless grinding machine with coordinated first and second spool mechanisms that continuously unwrap and wrap stock, allowing for continuous grinding and processing, featuring rotatable spools, a grinding wheel, and precise motor control for synchronized unwinding and winding, ensuring efficient stock management and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual unwinding and cutting of wire stock is used, then the grinding process can be performed on discrete workpieces, but the manufacturing process is substantially delayed
Solution Approach 1:
The patent implements continuous feeding of wire stock from a spool through the grinding wheel and continuous wrapping of the ground wire onto a collection spool. This eliminates the manual unwinding, cutting, and reloading steps, allowing the grinding process to operate continuously without interruption, thereby substantially increasing productivity and eliminating manufacturing delays.
2Productivity
If discrete wire cutting and feeding is used, then individual workpieces can be processed, but the grinding machine cannot continuously process elongated workpieces
Solution Approach 1:
The patent employs automated spool mechanisms that automatically unwind the wire stock from the supply spool, feed it through the grinding wheel, and automatically wrap the ground wire onto the collection spool. This self-service mechanism eliminates the need for manual wire handling, cutting, and feeding operations, enabling continuous processing while reducing operational complexity.
3Manufacturing precision
If optical sensors and regulating wheel adjustment are used, then workpiece position precision is improved, but the system complexity increases
Solution Approach 1:
The patent incorporates optical sensors that detect the position of the wire stock and provide feedback to the control system. The control system processes this information and automatically adjusts the regulating wheel position to maintain precise grinding profiles. This closed-loop feedback mechanism ensures high manufacturing precision while the automated control system manages the complexity of coordination between multiple moving components.
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
Enables continuous processing of slender stock, reducing manufacturing delays by automating the unwinding and winding of wire stock, ensuring precise control over the grinding process and improving the efficiency of workpiece production.
Implementation Method 1
a grinding wheel mounted on a spindle assembly for rotating the grinding wheel and adapted to grind the stock during its travel between the spools
Data Source
AI summary
A grinding machine has a machine bed, a first spool and a second spool mounted on the machine bed. The spools are capable of storing stock to be ground and are rotatable in a coordinated manner. A grinding wheel is mounted on the machine bed. The first spool is capable of continuously unwrapping the stock, the second spool is capable of continuously wrapping the stock and the grinding wheel is adapted to grind the stock during its travel between the first spool and the second spool. The grinding machine can be used to continuously grinding a slender stock. The stock is continuously unwrapped from the first spool and continuously wrapped on the second spool. The stock is ground during its travel from first spool to the second spool.