Yarn Processing Apparatus for Simultaneous Dual-Guide Threading
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Solution Overview
Problem
Yarn threading to regulatory guides in yarn processing apparatuses is time-consuming due to mismatched intervals of yarns and grooves, requiring manual adjustment and increased visibility challenges.
Innovation Solution
The apparatus includes movable yarn holding components with acute angles between their depth directions, allowing simultaneous threading to regulatory guides, and a synchronizing mechanism for synchronized movement, reducing manual intervention and improving visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a suction gun is used to suck and bundle yarns, then the yarns can be converged at the suction port, but the intervals of the yarns become tapered toward the downstream side, causing mismatch with the grooves of regulatory guides
Solution Approach 1:
The yarn holding component is divided into multiple yarn holding portions, each responsible for holding individual yarns at specific intervals. This segmentation allows each portion to independently maintain the correct yarn spacing, preventing the tapered interval problem caused by suction gun convergence while enabling precise matching with regulatory guide grooves
Solution Approach 2:
The yarn holding component acts as an intermediary device between the suction gun and the regulatory guides. It receives yarns from the suction gun and redistributes them at uniform intervals before threading to the regulatory guides, thus mediating the interval mismatch problem by transforming tapered intervals into uniform intervals
2Manufacturing precision
If the position of the suction gun is adjusted to match yarn intervals with grooves of one regulatory guide, then threading to that guide improves, but the yarn intervals do not match the grooves of the other regulatory guide
Solution Approach 1:
The yarn holding component is designed with multiple yarn holding portions that can simultaneously hold and position multiple yarns at correct intervals for multiple regulatory guides. This multi-functional design allows the same component to serve multiple threading operations, eliminating the need for separate adjustments for each regulatory guide and enabling simultaneous threading to both guides
3Manufacturing precision
If manual adjustment of suction gun position is performed to achieve yarn groove matching, then threading precision improves, but the threading process becomes time-consuming
Solution Approach 1:
The yarn holding component performs preliminary action by pre-holding and pre-positioning the yarns at correct uniform intervals before the threading operation. This preliminary arrangement of yarns eliminates the need for time-consuming manual adjustments during the actual threading process, as the yarns are already positioned correctly for matching with regulatory guide grooves
Solution Approach 2:
The yarn holding component enables self-service by automatically maintaining uniform yarn intervals through its structured design with multiple yarn holding portions. The component inherently preserves yarn spacing without requiring external manual intervention or adjustment, thus achieving both high precision and high speed in the threading operation
Data Source
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AI summary
An object of the present invention is to facilitate yarn threading to two regulatory guides provided on the upstream and downstream sides of a yarn processing unit of a yarn processing apparatus in a yarn running direction. The yarn processing apparatus 7 includes a yarn processing unit 21, a first regulatory guide 22, a second regulatory guide 23, a first yarn holding component 24, and a second yarn holding component 25. The first yarn holding component 24 includes first retaining grooves 24a, and is movable between a yarn threading position and a handover completion position. The second yarn holding component 25 includes second retaining grooves 25a, and is movable between a yarn threading position and a handover completion position. The first yarn holding component 24 at the yarn threading position is adjacent to the second yarn holding component 25 at the yarn threading position in the yarn running direction. When viewed in a left-right direction, an angle x is an acute angle between (i) a first depth direction D1 that is a direction toward the bottom of each first retaining groove 24a of the first yarn holding component 24 at the yarn threading position and (ii) a second depth direction D2 that is a direction toward the bottom of each second retaining groove 25a of the second yarn holding component 25 at the yarn threading position.