Movable Thread Guide Elements for Warping Section Positioning
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Solution Overview
Problem
Conventional warping machines face challenges in quickly changing the thread sequence and maintaining thread density, leading to long production times, tension issues, and poor warp quality, especially when processing electrostatic or smooth yarns like viscose or silk.
Innovation Solution
A device with movable thread guide elements on parallel axes allows precise control of thread positioning without crossing, using motor-driven traction mechanisms and clamping devices, enabling efficient repositioning and continuous warping without interrupting the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional warping machines use a fixed warping blade to determine thread sequence and density, then the structure is simple, but the production time increases and productivity decreases when changing thread sequences
Solution Approach 1:
The patent applies the dynamics principle by making the thread guide elements movable rather than fixed. Each thread guide element can be independently positioned along the warping blade width, allowing dynamic reconfiguration of thread sequences without changing the overall device structure. This enables quick pattern changes while maintaining a relatively simple device architecture.
Solution Approach 2:
The warping blade is segmented into multiple independent thread guide elements that can be individually positioned. Instead of moving the entire blade or complex mechanism, each thread guide element operates independently, allowing flexible thread sequence arrangement and reducing the complexity of the overall positioning system.
2Adaptability or versatility
If thread guide elements are positioned by crossing threads horizontally, then the thread sequence can be changed, but thread tension issues arise and warp quality deteriorates
Solution Approach 1:
The patent resolves the contradiction by changing the dimension of thread movement from horizontal crossing to vertical positioning. Thread guide elements are positioned at different locations along the warping blade width (horizontal dimension) but threads are guided vertically through these elements without crossing. This dimensional change allows sequence flexibility while preventing tension issues caused by thread crossing.
3Manufacturing precision
If the warping process is interrupted to change thread sequences, then precise positioning can be achieved, but production time increases and productivity decreases
Solution Approach 1:
The patent applies preliminary action by pre-positioning multiple thread guide elements at different locations along the warping blade before the warping process begins. This allows the machine to switch between different thread sequences by simply repositioning the guide elements without interrupting the warping process, thereby maintaining both precision and continuous operation.
Solution Approach 2:
The invention enables continuous warping operation by allowing thread guide elements to be repositioned without stopping the machine. The useful action of warping continues uninterrupted while the thread sequence is changed by moving the guide elements, thus maintaining both precision and productivity.
4Volume of moving object
If a narrow construction is used for thread guide elements, then the device size is reduced, but the complexity of precise control increases
Solution Approach 1:
The patent replaces complex mechanical positioning systems with a simpler control mechanism. Thread guide elements are mounted on linear guides that allow precise movement with minimal control complexity. This substitution maintains a compact device size while avoiding overly complex control systems through the use of straightforward linear displacement mechanisms.
Data Source
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AI summary
In order to position the individual threads (1), a plurality of thread-guiding elements (2) are provided, through which at least one thread can be directed, which is pulled off a thread supply, for example a warp creel, and guided to the warping drum. The thread-guiding elements are stacked on top of each other in the vertical direction in displacement planes, which are parallel to each other, and are displaceably supported. Due to a relative displacement of the individual thread-guiding elements (2), the sequence of the threads, or groups of threads, that are pulled off on the warping section, in relation to the horizontal width of the warping section, can be determined from the position of the thread-guiding elements without crossing. The positioning of the thread-guiding elements in two displacement directions can be performed, for example, by a traction gear having a Bowden cable (19).