Overview
ISO 96-2:2009, titled "Textile machinery and accessories - Rings and travellers for ring spinning and ring twisting frames - Part 2: HZ- and J-rings and their travellers," is an international standard developed by ISO Technical Committee TC 72, which focuses on textile machinery. This second edition supersedes the 1992 edition, providing updated technical specifications for the principal dimensions, mass, and tolerances of HZ- and J-rings and their corresponding travellers used in ring spinning and ring twisting machines.
The standard establishes uniformity in design and designation, ensuring compatibility and interchangeability in textile machinery components. It defines precise measurements and mass tolerances, contributing to improved performance, quality control, and operational efficiency in textile manufacturing.
Key Topics
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Principal Dimensions: ISO 96-2:2009 specifies the essential dimensions for HZ-rings (vertical rings) and J-rings (conical rings), including inside diameter, height, and fitting diameter tolerances. These dimensions are critical to achieving optimal ring and traveller interaction.
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Traveller Mass and Tolerances: The document details the nominal mass ranges for travellers associated with HZ- and J-rings, listing values from 9 to 20,000 grams per 1,000 travellers. It defines mass tolerances as ±3% for metal travellers and +5% for plastic travellers to ensure consistent quality and balanced machine operation.
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Traveller Designation: The standard sets a systematic method for marking and identifying travellers. Designation includes ring type (HZ or J), ring height, traveller style, wire section symbol, traveller mass, material, surface finish, and packaging format.
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Materials and Styles: Examples of both metal and plastic travellers are given for each ring type, supporting versatile choices to meet different manufacturing needs and wear resistance requirements.
Applications
ISO 96-2:2009 serves critical functions across the textile industry, particularly in sectors engaged in:
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Ring Spinning and Twisting Machines: Ensures compatibility and reliability of rings and travellers integral to yarn production, enhancing machine lifespan and yarn quality.
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Textile Machinery Manufacturing: Assists manufacturers in producing components that meet international size tolerances and mass specifications, facilitating global interoperability.
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Quality Assurance and Maintenance: Provides clear standards for replacement parts, enabling efficient machine maintenance and minimizing downtime.
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Product Design and Innovation: Offers a baseline specification for developing new variants of rings and travellers aligned with industry norms.
Using ISO 96-2:2009 guidelines, textile producers can optimize ring spinning setups to achieve high productivity, stable spinning conditions, and consistent yarn twist quality.
Related Standards
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ISO 96-1: Textile machinery and accessories - Rings and travellers for ring spinning and ring twisting frames - Part 1: Flange rings T and SF and their travellers, covering another category of ring types.
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ISO 3: Preferred numbers - Series of preferred numbers, referenced for traveller mass specifications, ensuring standardization across measured values.
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ISO/TC 72 Standards: Other standards issued by ISO technical committee TC 72, addressing various textile machinery components, enhancing comprehensive standardization.
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International Electrotechnical Commission (IEC) collaboration: Although primarily for electrotechnical standards, IEC's liaison with ISO ensures harmonization where electromechanical aspects intersect textile machinery.
By adhering to ISO 96-2:2009, textile machinery manufacturers and users can benefit from internationally recognized specifications for HZ- and J-rings with their corresponding travellers, thereby optimizing machine compatibility, enhancing operational efficiency, and maintaining high-quality spinning processes. The well-defined dimensions, mass tolerances, and designation methods support streamlined procurement, production, and maintenance within the global textile industry.
Open preview (PDF)Textile machinery and accessories — Rings and travellers for ring spinning and ring twisting frames — Part 2: HZ- and J-rings and their travellers
