Knitting Machine Slider Bar Loop Height Control
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Solution Overview
Problem
Existing warp knitting methods result in uneven loop heights due to loops being thrown off before the corresponding stitches, leading to fluctuations in loop height and reduced fabric quality.
Innovation Solution
The thread is dropped on the second knitting needles later than on the first knitting needles within the same knitting cycle, ensuring loops are only released after the stitches have been thrown off, and the use of sliders with different heights allows for controlled knock-over positions to keep loop threads taut until the appropriate stitch is thrown off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If loops are thrown off before the corresponding stitches in the knitting cycle, then the knitting process can be completed efficiently, but the loop heights become uneven and fabric quality deteriorates
Solution Approach 1:
The invention applies preliminary action by ensuring that stitches are thrown off before loops are released. This sequencing prevents loop threads from being tied into stitches that are still on the needles, thereby maintaining uniform loop heights while preserving knitting efficiency. The base fabric stitches are knitted and secured first, then loops are released in a controlled manner.
2Ease of manufacture
If guide needles are drawn in one full one empty pattern, then every second guide needle is covered with thread, but this creates limitations in thread coverage and pattern flexibility
Solution Approach 1:
The invention applies dynamics by making the guide bar configuration adjustable and adaptable. Instead of a fixed one-full-one-empty pattern, the system allows for variable guide bar arrangements that can be dynamically configured to achieve different thread coverage patterns. This enables flexible pattern creation while maintaining ease of operation through standardized guide bar mechanisms.
Data Source
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AI summary
The method involves carrying-out the thread discharge on the knitting needles than the other knitting needles in the knitting cycle, where the fringes are formed by a thread system. Each thread of another thread system is integrated in two fringes of the former thread system. A third thread system is placed in each knitting cycle around the knitting needles transverse to the working direction and is inserted in stitches of the former thread system as weft or stitch. An independent claim is included for a wrap knitting machine with a sliding bar.