FZ/T 97003-2012 in English

VALID

Weft knitting machine - single-side circular weft knitting machine

Issued on:2012-12-28
Implemented on:2013-06-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $180.00
$175.00

Standard No:	FZ/T 97003-2012
Document status:	VALID
Title in English:	Weft knitting machine - single-side circular weft knitting machine
Title in Chinese:	纬编机单面圆型纬编机
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2012-12-28
Implemented on:	2013-06-01
ICS Classification:	59.120.40-Knitting machines
Chinese Classification:	W96-Machinery and apparatus for knit and textile articles
Professional Classification:	FZ-Textile
Related Keywords:	machine model number application basic machine models expanded machine introduction background single-side circular weft special machine models covering complex functions such
Related Topics:	latitude and longitude model latitude and longitude model latitude ene latitude Warp and weft density of weft knitting Fabric weft bias Fabric weft and bias standards fz/t54065-2012 FZ/T811007-2012 fz/t 70014-2012 fz/t 1118-2012 Weft knitting machine international fz/t 54064-2012

本标准规定了单面圆型纬编机的产品分类及基本参数、要求、试验方法、检验规则以及标志、包装、运输和贮存。
本标准适用于针筒公称直径305mm/12～1067mm/42的单面圆型纬编机。针筒公称直径小于305mm/12和大于1067mm/42的单面圆型纬编机亦可参照执行。

Introduction

Background of Standard Evolution

As the core specification of the textile industry, this standard has undergone major technical upgrades from the 1991 version to the 2012 version, mainly reflecting:

Technical Dimensions	1991 Version	2012 Version	Upgrade Points
Scope of Application	Basic Machine Models	Expanded to 8 Special Machine Models	Covering Complex Functions Such as Jacquard/Terry/Thread Adjustment
Precision Requirements	Needle Cylinder Jump≤0.08mm	≤0.05mm	Precision improved by 37.5%
Safety specifications	No separate chapter	New chapter 4.5	Complies with GB 5226.1 electrical safety

Core parameter analysis

1. Nominal diameter of needle cylinder

The standard stipulates that the needle cylinder diameter range of single-sided circular weft knitting machine is 305-1067mm (12-42 inches). Table 1 gives the imperial/metric comparison of 26 specifications, including:

Priority specifications: 432mm(17"), 508mm(20") and other standard sizes
Restricted specifications: Non-preferred sizes such as 533mm(21") marked in brackets

2. Performance indicators

Case: When a company uses a multi-track weft knitting machine to produce plain fabrics, it must ensure that:

Line speed ≥ 0.7m/s (as specified in Table 3)
Single yarn tension variation ≤ 1.4cN (Article 4.11.3)
Noise ≤ 80dB(A) (Article 4.3.3)

Key technical requirements

1. Improved mechanical precision

The 2012 version puts forward higher requirements for key components:

Needle cylinder parts: Radial runout increased from 0.08mm to 0.05mm (Article 4.6.2)
Weaving triangle: Hardness requirement 60-63HRC, surface roughness Ra≤0.8μm (Article 4.7)

2. New safety system

The standard establishes complete safety specifications for the first time:

Mandatory protection marking for dangerous parts (Article 4.5.1)
Safety door linkage emergency stop function (Article 4.5.2)
Electrical withstand voltage 1500V test (Article 4.5.5)

Implementation suggestions

Equipment selection guide

Select the corresponding model according to the product type:

Product type	Recommended machine model	Number of inlet lines
Plain fabric	Multi-track model	1.6 lines per inch
Jacquard fabric	Electronic jacquard model	1.2-1.3 lines per inch

Maintenance points

Lubrication management: Use atomized oil lubrication system, and oil mist can be seen creeping in the oil pipe (Article 4.4.3)
Precision maintenance: Check the radial runout of the needle cylinder every month, and repair is required if it exceeds 0.06mm

More samples: QC/T 942-2021 JC/T 2453-2018 DL/T 5154-2012

Sample only — not a preview of FZ/T 97003-2012