Weaving Loom Heddle Resin Encapsulation Snagging
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Solution Overview
Problem
The existing heddles for weaving looms often cause snagging of warp threads due to abrupt transition zones and hooking reliefs formed by rivets, leading to risks of breakage or damage during weaving.
Innovation Solution
A heddle design with a link and strand assembly where a solidified resin is used to encapsulate potential snagging reliefs, distributed across a passage zone defined by a closed contour, reducing friction and snagging risks without interfering with the assembly members' function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a solidified resin assembly member is used to connect the link and heddle body, then the transmission of longitudinal connection forces is improved, but abrupt transition zones and hooking reliefs are formed that can snag warp threads
Solution Approach 1:
The patent applies local quality by creating a passage zone with a specific contour that is different from other parts of the heddle. This localized structural modification ensures that the transition zone between the link and heddle body has a smooth, continuous contour that prevents snagging, while other parts of the heddle maintain their original functional characteristics for force transmission.
Solution Approach 2:
The patent employs curvature by defining the passage zone contour to be free of abrupt transitions and sharp edges. The smooth, curved contour of the passage zone eliminates hooking reliefs that could catch warp threads, while still allowing the solidified resin assembly member to effectively transmit longitudinal forces between the link and heddle body.
2Strength
If the heddle body and link are overlapping with rivets, then the connection between components is strengthened, but the abrupt transition zones create reliefs that hook neighboring warp threads
Solution Approach 1:
The patent applies local quality by creating a passage zone with a specific contour that is different from other parts of the heddle. This localized structural modification ensures that the transition zone between the link and heddle body has a smooth, continuous contour that prevents snagging, while other parts of the heddle maintain their original functional characteristics for force transmission.
Solution Approach 2:
The patent employs curvature by defining the passage zone contour to be free of abrupt transitions and sharp edges. The smooth, curved contour of the passage zone eliminates hooking reliefs that could catch warp threads, while still allowing the solidified resin assembly member to effectively transmit longitudinal forces between the link and heddle body.
3Productivity
If high density heddles are located next to each other on the loom, then the weaving capacity is increased, but friction between adjacent heddles and warp threads increases causing snagging
Solution Approach 1:
The patent applies local quality by creating a passage zone with a specific contour that is different from other parts of the heddle. This localized structural modification ensures that the transition zone between the link and heddle body has a smooth, continuous contour that prevents snagging, while other parts of the heddle maintain their original functional characteristics for force transmission.
Solution Approach 2:
The patent employs curvature by defining the passage zone contour to be free of abrupt transitions and sharp edges. The smooth, curved contour of the passage zone eliminates hooking reliefs that could catch warp threads, while still allowing the solidified resin assembly member to effectively transmit longitudinal forces between the link and heddle body.
Data Source
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AI summary
This rail extends lengthwise along a longitudinal axis (X1) and comprises a link (2), a rail body, with at least one strand (4) and at least one assembly member (82, 84) made of solidified resin, arranged in a pair of housings formed by a housing in the link and a housing in the strand, which are opposite each other and located on either side of an overlap interface (IR). One housing of the pair of housings passes completely through, along the transverse axis, the strand (2) or the link (4), in which this housing is located. The through housing is located, relative to the overlap interface (IR), on a first transverse side (CT1).A first part (2) is provided with at least one closed contour opening (323, 325) passing completely through the first part, while at least a portion (323) of the closed contour is defined, outside the opposite side, along the transverse axis, with a solid portion (48) of the second part (4) between the link and the strand, and also outside the opposite side, along the transverse axis, with a housing of the second part belonging to a pair of housings. A passage zone (ZP) is delimited by at least the portion (323) of the contour of the through-hole of the first part (2) and by a portion (482) of the peripheral edge of the second part (4). The peripheral edge of the second part is disposed, with respect to the overlap interface (IR), on a second transverse side (CT2). The passage zone (ZP) is crossed by solidified resin which extends against the portion (482) of the peripheral edge delimiting the passage zone (ZP).