Overview
ISO 11676:2014 - Textile machinery and accessories - Pattern disks and pattern chains for warp knitting machines - Vocabulary and symbols defines the standardized terms and marking rules for pattern disks (disc cams) and pattern chains used on warp knitting machines. The standard provides a common vocabulary and symbol set to ensure clear communication between machine manufacturers, pattern-gear suppliers, maintenance teams and textile technologists.
Keywords: ISO 11676:2014, pattern disks, pattern chains, warp knitting machines, vocabulary and symbols, marking, gauge, chain-link height.
Key Topics
- Scope: Defines terminology and marking conventions for pattern discs and pattern chains controlling lateral motion of guide bars.
- Terms and definitions:
- Pattern disc, type of pattern disc (e.g., N, E), gauge, number of courses, direction of rotation, starting of the notation, fitting borehole.
- Pattern chain, chain-link, chain-link type (N, E), foot radius, chain-link height, standard vs profile chain-links (straight, rising, declining, rising & declining).
- Marking requirements:
- Pattern discs must show machine type, gauge (per ISO 8188), stitch row number (index C or DC, or transmission ratio X:1), notation (lapping notation, numbering from zero), starting position, fitting borehole identification, direction of rotation, and guide-bar classification (per ISO 10223).
- Standard chain-links: gauge (numeric), chain-link height (whole number) and optional code letters (a–d) indicating tie shape.
- Profile chains: machine type, gauge, notation, and ordered numeration of chain-links.
- Examples included: gauge notation like E6/3, equivalent gauge notation E8 (E12) for indirect drives, stitch-row examples 16C or 12DC, and lapping notation examples (e.g., 1–0/1–2//).
Applications
- Ensures consistent specification and interchangeability of pattern gears across machine makes and suppliers.
- Used by:
- Warp knitting machine manufacturers and pattern-gear producers for product labeling and documentation.
- Production engineers and maintenance technicians for correct assembly, setting and troubleshooting.
- Purchasing and inventory teams for unambiguous ordering of discs and chain-links.
- Technical writers and trainers preparing machine manuals and training materials.
- Practical benefits: reduces errors in installation, improves communication across supply chains, and supports accurate pattern programming and machine setup.
Related Standards
- ISO 8188 - Pitches of knitting machines (referenced for gauge)
- ISO 10223 - Flat warp knitting machines - Numbering of guide bars (referenced for guide-bar classification)
- ISO 8640-3 and ISO 11675:2005 - Related vocabulary documents for patterning devices and flatbed knitting machines
Using ISO 11676:2014 helps standardize vocabulary and marking of pattern disks and chains, improving interoperability, safety and efficiency in warp knitting operations.
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