Traverse Unit Vibration Reduction via Counterweight Drivers
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Solution Overview
Problem
Increased winding and traversal speeds in yarn winding processes lead to significant vibration due to inertia, affecting the quality of yarn packages.
Innovation Solution
A traverse unit with multiple drivers, each with a movable portion and traverse guides, is controlled to reciprocate in opposite directions, canceling out inertia impacts and reducing vibration. The number and alignment of drivers and guides are optimized to minimize cost and vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the winding speed and traversal speed are increased to improve production efficiency, then productivity is improved, but vibration occurs due to increased inertia at the time of turnaround
Solution Approach 1:
The patent applies the counterweight principle by using multiple drivers (at least two) that reciprocate in opposite directions. When one driver accelerates in a forward direction, another driver accelerates in the reverse direction, creating opposing inertial forces that cancel each other out. This eliminates vibration at the time of turnaround while maintaining high traversal speeds, thus resolving the contradiction between improved productivity and reduced vibration.
2Object-affected harmful factors
If multiple drivers are added to reduce vibration, then vibration is reduced, but device complexity increases
Solution Approach 1:
The patent merges multiple driving functions into a coordinated system where drivers share common structural elements and control mechanisms. The drivers are designed to reciprocate in opposite directions using a synchronized control system, allowing them to function as an integrated unit rather than independent components. This merging approach reduces the overall complexity compared to having multiple independent driving systems, while still achieving vibration reduction through the counterbalancing effect.
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
This configuration effectively reduces vibration during yarn turnaround, improving the quality of yarn packages and reducing operational costs by minimizing the number of drivers and guides required.
Implementation Method 1
vibration occurs due to the inertia of the movable portion at the time of turnaround of the yarns
Implementation Method 2
an impact caused by the inertia at the time of turnaround of the movable portion(s) of the one or some of the drivers is cancelled out by an impact caused by the inertia at the time of turnaround of the movable portion(s) of the remaining driver(s). Consequently, vibration occurring at the time of turnaround of the yarns is reduced.
Data Source
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AI summary
Vibration at the time of turnaround of traversed yarns is reduced. A traverse unit 12 configured to traverse yarns Y in a traverse direction includes: traverse guides 14 provided for the yarns Y respectively, and configured to reciprocate in the traverse direction while holding the yarns Y; one or more drivers 20 each including a movable portion 22 to which corresponding one or more of the traverse guides 14 are attached, the movable portion 22 being configured to reciprocate in the traverse direction; and a controller configured to control operation of the drivers 20. The number of the drivers 20 provided is two or more; and the controller is configured to control the plurality of drivers 20 so that at a same time when the movable portion(s) 22 of one or some of the plurality of drivers 20 turn around to move in one of opposite directions, the movable portion 22 of at least one driver 20 of a remainder of the plurality of drivers 20 turns around to move in the remaining one of the opposite directions.