Synchronized Electric Drives for Woodwind Reed Planing
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Solution Overview
Problem
Existing planing machines for woodwind instrument reeds face challenges in maintaining precise speed synchronization between the reed holder and planing carriage, leading to incomplete processing, vibrations, and uneven wear, particularly for inexperienced users, and require manual intervention for tool changes and material removal.
Innovation Solution
The implementation of an automated system with synchronized electric drives for the reed holder and planing carriage, controlled by a microcontroller with speed sensors and programmable settings, allowing for precise speed control and automatic operation, including automatic tool changes and wood chip removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual drive unit is used for planing carriage, then ease of operation is improved, but manufacturing precision deteriorates due to inability to maintain precise speed synchronization
Solution Approach 1:
The patent replaces the manual mechanical drive system with an automated electrical drive system. Two electric motors are introduced: one drives the planing carriage reciprocatingly, and another drives the reed holder pivotably. These motors are synchronized through mechanical coupling (gears, belts, or chains) to maintain precise speed ratios, eliminating the precision problems of manual operation while remaining easy to use.
Solution Approach 2:
The patent creates a multi-functional drive system where the electrical motors serve multiple purposes: driving the planing carriage, driving the reed holder, and maintaining synchronized speed ratios through mechanical coupling. This universal electrical-mechanical system replaces the单一 manual operation mode, providing both ease of operation and manufacturing precision.
2Productivity
If higher pivoting speed is used for reed holder, then productivity is improved, but manufacturing precision deteriorates due to incomplete processing segments
Solution Approach 1:
The patent introduces feedback control through synchronized electrical drives. The control system monitors the speed of both the planing carriage and reed holder, and automatically adjusts them to maintain the precise speed ratio required for complete processing. This allows high pivoting speeds for productivity while ensuring no segments are skipped through active speed regulation.
Solution Approach 2:
The patent makes the drive system dynamic and adjustable. The electrical motors can vary their speeds dynamically while maintaining the required ratio, allowing the system to adapt to different processing requirements. This dynamic capability enables high productivity when needed while maintaining processing completeness through controlled speed relationships.
3Productivity
If higher reciprocating speed is used for planing carriage, then productivity is improved, but reliability deteriorates due to vibrations and nicks
Solution Approach 1:
The synchronized electrical drive system provides feedback control over the planing carriage speed. The system can maintain optimal speeds that prevent vibrations and nicks while still achieving high productivity. The control system monitors and adjusts the reciprocating speed to stay within the optimal range, ensuring surface quality is not compromised.
Solution Approach 2:
The electrical drive system allows dynamic adjustment of the planing carriage reciprocating speed. Rather than being fixed, the speed can be optimized for each operating condition to prevent vibrations and nicks. This dynamic control enables maintaining reliability while achieving high productivity through optimized speed selection.
4Manufacturing precision
If automated electrical drives with synchronization are implemented, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex manual coordination with automated electrical drives. While this introduces electrical components, it eliminates the need for manual skill and judgment. The mechanical synchronization through gears, belts, or chains provides reliable speed ratios with minimal control complexity, achieving high precision through mechanical design rather than complex electronic control.
5Productivity
If continuous planing operation is maintained, then productivity is improved, but reliability deteriorates due to material buildup requiring interruptions
Solution Approach 1:
The patent enables the system to serve itself by automatically managing the planing process. The synchronized drives maintain optimal speeds that prevent excessive material buildup, allowing continuous operation. The system self-regulates to maintain process stability without requiring manual intervention for speed adjustments or interruptions, achieving both productivity and reliability.
Data Source
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AI summary
In a device for manufacturing reeds for mouthpieces of woodwind instruments, comprising a reed holder for the reed to be processed, which is pivotably mounted about a pivot axis, a planing carriage driven to a back-and-forth movement with a planing or scraping tool for processing the reed, and a scanning device connected to the planing carriage for scanning a template, the pivoting movement of the reed holder and the back-and-forth movement of the planing carriage are electrically driven.