Fiber Bundle Winding Device with Dynamic Traverse Control

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Solution Overview

Problem

Conventional fiber bundle winding devices cause non-uniform overlaps at both ends of the bobbin, leading to the collapse of the fiber bundle.

Innovation Solution

A fiber bundle winding device with a traverse guide and a controller that performs first and second movement controls to wind the fiber bundle onto a bobbin, with the first movement control winding in a larger area and the second movement control winding in a smaller area within the larger area, both controls performed at a ratio of N:1, where N is an integer greater than 1.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the fiber bundle is wound onto the bobbin using a conventional traverse guide, then the fiber bundle can be wound along the rotation axis, but non-uniform overlaps occur at both ends of the bobbin causing collapse of the fiber bundle

Engineering Contradiction:
Improveuniformity of fiber bundle overlapVSAvoidcollapse of fiber bundle at ends
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The winding area along the center axis is segmented into multiple zones with different traverse guide positions. The controller divides the winding process into first and second movement controls, creating turn-back points at four distinct positions instead of two, which segments the overlap distribution and prevents concentration of fiber bundles at the ends.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The traverse guide position is dynamically adjusted during the winding process based on the bobbin's rotation. The controller varies the traverse guide position to create a dynamic winding pattern that shifts turn-back points along the center axis, preventing fixed overlap locations and resulting in more uniform fiber distribution.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the traverse guide moves in a fixed pattern, then the winding process is simple, but the fiber bundle overlaps non-uniformly at the bobbin ends

Engineering Contradiction:
Improvewinding efficiencyVSAvoiduniformity of fiber distribution
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The controller uses feedback from the bobbin's rotation to adjust the traverse guide position dynamically. By monitoring the winding process and adjusting traverse guide movements in response to bobbin rotation, the system maintains both high productivity and uniform fiber distribution without requiring complex mechanical modifications.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12275611B2Fiber bundle winding device
Publication Date: 2025.04.15 TOYOTA JIDOSHA KK
  • US12275611B2 patent drawing
  • US12275611B2 patent drawing
  • US12275611B2 patent drawing

AI summary

A fiber bundle winding device includes: a traverse guide configured to guide a fiber bundle to a bobbin; and a controller configured to control the traverse guide according to a rotation of the bobbin. The traverse guide is movable parallel to a center axis of the bobbin. The controller can perform: first movement control that moves the traverse guide to wind the fiber bundle onto the bobbin in a predetermined first area extending in a direction of the center axis of the bobbin; and second movement control that moves the traverse guide to wind the fiber bundle onto the bobbin in a second area being smaller than the first area and having ends that are located within the first area and at different positions from respective ends of the first area. The first movement control and second movement control are performed at a ratio of N:1 (N is an integer more than 1).