Filament Winding Suspension Control to Prevent Fiber Roll Deformation
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Solution Overview
Problem
Existing filament winding methods face issues with deformation of the fiber roll portion due to excessive tension when winding is temporarily suspended, leading to increased time and cost requirements.
Innovation Solution
A filament winding method that includes a temporary suspending step where the winding device operation is paused, and the pressing member is moved to increase the feeding path length while continuing to feed out the fiber, preventing excessive tightening of the fiber roll portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the winding device operation is temporarily suspended in the middle of winding, then an intermediate process (such as measuring winding accuracy or changing winding angle) can be performed, but a relatively large tension acts on the fed-out fiber portion causing the fiber roll portion to be excessively tightened and deformed
Solution Approach 1:
The pressing member is moved in advance during the temporary suspension to increase the feeding path length before the fiber roll portion becomes excessively tightened. This preliminary action prevents the harmful tightening effect from occurring while allowing the intermediate process to be performed.
Solution Approach 2:
The pressing member acts as an intermediary element that mediates between the fiber roll portion and the fed-out fiber portion. By moving the pressing member, the feeding path length is adjusted, which controls the tension transmission to the fiber roll portion and prevents deformation while maintaining the ability to suspend for intermediate processes.
2Adaptability or versatility
If the fiber roll portion is excessively tightened by the fed-out fiber portion during temporary suspension, then the fiber roll portion deforms, but this requires correction or replacement of the bobbin member increasing time and cost
Solution Approach 1:
The pressing member is moved during the temporary suspension period to increase feeding path length, performing a preliminary protective action that prevents fiber roll portion deformation before it occurs. This eliminates the need for subsequent correction or replacement operations, reducing time loss.
Solution Approach 2:
The temporary suspension, which initially causes harmful tension and potential deformation, is converted into a beneficial opportunity. By utilizing this suspension period to move the pressing member and increase feeding path length, the system prevents the harmful effect while maintaining process flexibility.
3Ease of operation
If the pressing member maintains constant pressing force during temporary suspension, then tension control is simple, but the fiber roll portion becomes excessively tightened
Solution Approach 1:
The pressing member transitions from a static constant force application to a dynamic system where its position changes during temporary suspension. By moving the pressing member to increase feeding path length, the system dynamically adjusts the tension distribution, maintaining ease of operation while preventing fiber roll portion deformation.
Solution Approach 2:
The system changes the parameter of feeding path length by moving the pressing member during temporary suspension. This parameter change allows the constant pressing force to be maintained (ease of operation) while the increased path length reduces the effective tension on the fiber roll portion, preventing deformation.
Data Source
AI summary
A filament winding apparatus includes a bobbin driving unit, a winding device, and a tension applying device. A filament winding method using the filament winding apparatus includes a temporary suspending step of temporarily suspending operation of the winding device in the middle of winding the fed-out fiber portion around the workpiece. In the temporary suspending step, the length of the feeding path is increased by moving the pressing member while causing the pressing member to press against the fed-out fiber portion in a state of continuing to feed out the fed-out fiber portion from the fiber roll portion.