Sample Warp Dividing Rod Removal via Partial Unwinding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing warping machines require significant effort to remove dividing rods from the pattern warp due to high thread tension, risking damage to the threads and operator discomfort, especially when multiple windings are involved.
Innovation Solution
Unwinding the pattern warp with a predetermined length reduces tension, allowing easy removal of dividing rods between the warping drum and the beam device, where the pattern chain lies flat, and using passive dividing rods with a friction-reducing outer layer and adjustable radial position to minimize deformation and accessibility issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the dividing rods are removed from the pattern warp while it is wound on the warping drum, then the threads are under high tension making removal difficult, but removing them after unwinding a predetermined length reduces tension and makes removal easier
Solution Approach 1:
The pattern warp is unwound from the warping drum by a predetermined length before the dividing rods are removed. This preliminary unwinding action reduces the thread tension acting on the dividing rods, making their removal significantly easier and less physically demanding for the operator.
Solution Approach 2:
The system transitions from a static state (pattern warp fixed on warping drum with high tension) to a dynamic state (pattern warp partially unwound with reduced tension). This dynamic adjustment of the warping drum position allows the operator to remove dividing rods at an optimal moment when tension is minimized.
2Reliability
If the dividing rods are pulled out with high thread tension, then the threads risk being damaged or destroyed, but unwinding first reduces this risk
Solution Approach 1:
The pattern warp is unwound by a predetermined length before dividing rod removal to preliminarily reduce the tensile stress on the threads. This prevents excessive force from being applied to the threads during the dividing rod extraction process, thereby protecting thread integrity.
3Ease of operation
If the dividing rods are removed in the immediate vicinity of the warping drum periphery, then the process is quick, but accessibility is poor and operation is difficult
Solution Approach 1:
The pattern warp is unwound by a predetermined length to move the dividing rods to a more accessible position away from the warping drum periphery. This preliminary movement allows the operator to easily access and remove the dividing rods without straining or contorting, improving operational ease.
Solution Approach 2:
The dividing rods are moved from a constrained position near the warping drum circumference to a more open spatial position along the unwound pattern warp. This dimensional relocation provides better access angles and working space for the operator.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The method involves wounding threads (6) on a warping drum and is deposited partly on and partly under part rods (17,18,19,20). A beginning and an end of a sample warp are produced after winding the warping drum. The part rods are loosened from their fastening and the part rods are pulled out of a sample warp. The sample warp is wound to a predetermined length of the warping drum before pulling out a part rod. An independent claim is also included for a warping machine for sample warp with a warping drum.