BS ISO 8122-2003 Textile machinery - Knitting machines - Number of needles for circular knitting machines of large nominal diameter《纺织机械 针织机 大标称直径圆形针织机的针数》.pdf
《BS ISO 8122-2003 Textile machinery - Knitting machines - Number of needles for circular knitting machines of large nominal diameter《纺织机械 针织机 大标称直径圆形针织机的针数》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 8122-2003 Textile machinery - Knitting machines - Number of needles for circular knitting machines of large nominal diameter《纺织机械 针织机 大标称直径圆形针织机的针数》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS ISO 8122:2003 Textile machinery Knitting machines Number of needles for circular knitting machines of large nominal diameter ICS 59.120.40 BS ISO 8122:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 June 2003 BSI 2
2、5 June 2003 ISBN 0 580 42137 6 National foreword This British Standard reproduces verbatim ISO 8122:2003 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee TCI/33, Textile machinery, which has the responsibility to: A list of o
3、rganizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence
4、Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself
5、confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and prom
6、ulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued
7、. Amendments issued since publication Amd. No. Date Comments Reference number ISO 8122:2003(E)INTERNATIONAL STANDARD ISO 8122 Second edition 2003-06-01 Textile machinery Knitting machines Number of needles for circular knitting machines of large nominal diameter Matriel pour lindustrie textile Machi
8、nes tricoter Nombre daiguilles pour les machines tricoter circulaires de grand diamtre nominal BSISO8122:2003ii BSISO8122:2003 iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Intern
9、ational Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with
10、 ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical
11、 committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to
12、the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 8122 was prepared by Technical Committee ISO/TC 72, Textile machinery and machinery for dry- cleaning and industrial la
13、undering, Subcommittee SC 3, Machinery for fabric manufacturing including preparatory machinery and accessories. This second edition cancels and replaces the first edition (ISO 8122:1988), which has been technically revised. BSISO8122:2003blankINTENRATIONAL TSANDADR IS:2218 O3002(E)I SO 3002 All irh
14、gts seredevr 1Textile machinery Knitting machines Number of needles for circular knitting machines of large nominal diameter 1 Scope This International Standard specifies the usual number of needles for single-face, double-face and “links-links” circular knitting machines of large nominal diameter,
15、in terms of the needle pitch or gauge E and the machine nominal diameter, and is able to be used as a basis for the comparison of fabrics knitted on these machines. It is not applicable to circular knitting machines with a selection of single needles. 2 Normative references The following referenced
16、documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 8117, Textile machinery Knitting machines Nominal diameters of circula
17、r machines ISO 8188, Textile machinery and accessories Pitches of knitting machine needles ISO 7839, Textile machinery and accessories Knitting machines Classification and vocabulary 3 Terms, definitions and classification For the purposes of this document, the terms, definitions and classification
18、given in ISO 7839 apply. 4 Number of needles 4.1 General The numerical designations of the nominal diameters of circular knitting machines and the needle pitches shall be in accordance with ISO 8117 and ISO 8188. To determine the usual number, N u(rounded number), of needles for circular knitting ma
19、chines of large nominal diameter from the theoretical number, N t , of needles, take, as the divisor, a) 12, for machines with nominal diameters u 508 mm, and b) 24, for machines with nominal diameters 508 mm. The deviation from the theoretical number of needles shall not exceed 3 9 + in the case of
20、 a) and 6 18 + for b). NOTE 1 The usual number (rounded) of needles is therefore a multiple of 12 or 24 that occurs in the fixed tolerance interval for the theoretical number of needles, i.e. 3 9 + or 6 18 + . BSISO8122:20031IS:2218 O3002(E) 2 I SO 3002 All irhgts seredevrNOTE 2 Larger deviations fr
21、om the theoretical number of needles can occur in the case of machines with a selection of single needles. 4.2 Calculation The theoretical number of needles, N t , of a needle carrier is obtained using the following formula: N t= d c E where = 3,141 592 7; d cis the designation for the nominal diame
22、ter of the knitting machine; E is the gauge. The usual number, N u , of needles (see Table 1) is the rounded number according to 4.1. EXAMPLE The theoretical number of needles for a knitting machine with a numerical designation d c= 18 and a gauge of E = 24 is N t= 18 3,141 592 7 24 = 1 357,168 The
23、usual number of needles is therefore in the range of 1 348,168 to 1 360,168 (i.e. 1 357,168 3 9 + ) and, in this example (using 12 as the divisor), is 1 356. BSISO8122:20032IS:2218 O3002(E) I SO 3002 All irhgts seredevr 3 Table 1 Usual number of needles, N uNeedle pitch Gauge Nominal diameter, mm (d
24、esignation d c , in) t mm E 177,8 (7) 190,5 (7,5) 203,2 (8) 228,6 (9) 254 (10) 279,4 (11) 304,8 (12) 330,2 (13) 355,6 (14) 381 (15) 406,4 (16) 431,8 (17) 457,2 (18) 482,6 (19) 508 (20) 533,4 (21) 558,8 (22) 584,2 (23) 609,6 (24) 0,508 50 1092 1176 1248 1416 1572 1728 1884 2040 2196 2352 2508 2664 28
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