Partners save 15% on every standard

Valid

GB 31144-2014Safety of woodworking machines-Manual radial arm saws (English PDF)

木工机床安全手动式摇臂锯

Open the GB 31144-2014 preview as PDF

Preview — first pages of GB 31144-2014 (full document: 23 pages)

This is a limited preview

Buy now to download the full PDF (23 pages)

Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

Level / Type

National · Mandatory

Issue date

September 3, 2014

Implementation date

October 1, 2015

Scope

GB 31144-2014 is the English-translated version of 木工机床安全手动式摇臂锯.

GB 31144-2014 is the Chinese national standard on safety of woodworking machines-manual radial arm saws, in the field of wood technology. It carries no /T suffix, which in the Chinese system means compliance is mandatory: a product or a practice within its scope has to meet it to be lawfully made, sold or carried out in China. It was issued on 3 September 2014 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 October 2015. Classification: ICS 79.120.10, CCS J65. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

Document preview — GB 31144-2014

National Standard of the People's Republic of China

ICS: 79.120.10
Classification: J65

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

1 Scope
2 Normative references
3 Terms and Definitions
4 Dangerous List
5 Safety requirements and/or measures
5.1 General requirements
5.2 Control
5.2.1 Safety and reliability of control systems
5.2.5 Failure energy
5.3 Protection of mechanical hazards
5.3.3 Structure of tool and toolholder
5.4 Non-mechanical hazards Protection
5.4.8 Laser 5.1
6 Use the information 16
6.2 mark
8 Stop the machine under optimum conditions without possibility 5.2.4,5.3.4 9
10 Control circuit failure 5.2.1,5.2.6 11
17 Stability Test Appendix A (normative) movable machine

Foreword

The standard Chapter 3, Appendix A is recommended, the rest are mandatory. This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Machinery Industry Federation. This standard by the National Woodworking Machine and Tool Standardization Technical Committee (SAC/TC84) centralized. This standard is mainly drafted by: Fuzhou Woodworking Machine Tool Research Institute, Asian workers (Weihai) Co., Ltd., Weihai complete Woodworking Machinery Co., Secretary of Jiangsu tide Technology Co., Ltd., Dongguan City, south-furniture Equipment Manufacturing Co., Ltd. Changting County Quality and Technical Supervision Bureau, Changting County Measuring the quality of detection, Jinhua Wang Qiang furniture Limited, Cheung Woodworking Machinery Minhou County, Fujian Province Deli Electrical Co., Ltd. Drafters of this standard. Zhang Zhen, Song Zhimin, Liu new to this, Yang Gaohuai, Dongyan Wen Zhong xin chang, poplar gold, Chen Yun root, Lin Wenxin CIVIL ENGINEERING AND. Safety of woodworking machines manual radial arm saws

1 Scope

This standard specifies the requirements for the removal of hazards and limit the risk of manual radial arm saws (hereinafter referred to as the machine) and/or measures. This standard applies to sawing wood, particleboard, fiberboard, plywood and veneer or plastic material welt machine. This standard does not apply in the following machine.

a) by a person moving, working at a fixed operating point, install a desktop machine on the table or similar devices;

b) installation of hydraulic power operated member (for example, a hydraulic clamping device) of the machine;

c) the machine is equipped with dynamic positioning means;

d) equipped with means for longitudinal section, the milling machine (including cutting and slotting), sanding or drilling and other accessories;

e) a plurality of sawing machine axes.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Determination of sound power levels of noise sources reflecting plane free field engineering method

GB/T 3767-1996 Acoustics sound pressure

GB/T 3768-1996 Determination of sound pressure of sound power levels of noise sources using an enveloping surface reflectance measuring surface Simple Method

GB 4208-2008 shell protection (IP code)

GB/T 5013.1-2008 rated voltage of 450/750V and below rubber insulated cables - Part 1. General requirements

GB/T 5023.1-2008 rated voltage of 450/750V and below PVC insulated cables - Part 1. General requirements

GB 5226.1-2008 Safety of machinery - Electrical machinery and electrical equipment - Part 1. General requirements GB /Determination of sound power levels of noise sources in reverberant fields - small, movable sources Engineering T 6881.2-2002 sound pressure - Part 1. Comparison method hard walled test rooms GB /Determination of sound power levels of noise sources in reverberant fields - small, movable sources Engineering T 6881.3-2002 sound pressure - Part 2. special reverberation test rooms Determination of sound power levels of noise sources anechoic and semi-anechoic chamber Precision method

GB/T 6882-2008 Acoustics sound pressure

GB 7247.1-2012 Safety of laser products - Part 1. Equipment classification, requirements

GB/T 8196-2003 mechanical safety devices fixed and movable guards General requirements for the design and manufacture

GB 12557-2010 Safety of woodworking machines General

GB 14048.4-2010 Low-voltage switchgear and control equipment - Part 4-1. Contactors and motor starters electromechanical contact Contactors and motor starters (with motor protection)

GB 14048.5-2008 Low-voltage switchgear and control equipment Part 5-1. Control circuit devices and switching elements - Electromechanical Control circuit devices Declaration and verification of

GB/T 14574-2000 Acoustics machinery and equipment noise emission values

3 Terms and Definitions

GB/T 15706-2012 defined in Chapter 3 and the following terms and definitions apply to this document.

3.1 Transverse cross-cutting Longitudinal cutting through the workpiece.

3.2 Manual radial arm saws manualradialarmsaw The machine's cutting unit to manual feed, cutting, sawing unit linearly moved horizontally along the arm to saw the workpiece, and then back to stop Stop position (see Figures 1 and 2). Rocker horizontally rotatable about a vertical axis of rotation, and the saw unit can about a horizontal axis parallel to the rotation of the rocker arm (tilt oblique). Manual positioning of the workpiece and manual feed from the table. NOTE. The saw blade is not in the rest position. Figure 1 instance of a manual radial arm saws Figure 2 manual radial arm saws Example Two

3.3 Manual sawing unit feed handfeedofthesawunit In the feed direction, along the front of the rocker arm, manually move the blade with integral sawing unit.

3.4 Mechanical actuator mechanism machineactuator [GB 5226.1-2008, the definition 3.34].

3.5 Cutting zone cuttingareaofthesawblade machine [GB 12557-2010, the definition 3.8].

3.6 Machine no cutting area non-cuttingareaofthesawblade [GB 12557-2010, the definition 3.9].

3.7 Rocker saws cutting zone cuttingareaofaradialarmsaw The maximum stroke, the rocker arm and tilt the saw unit designed with maximum diameter of the blade to rotate about a vertical axis around the largest area is formed.

3.8 Coasting time unbrakedrun-downtime [GB 12557-2010, the definition 3.15].

3.9 Guarantee confirmation [GB 12557-2010, the definition 3.19].

3.10 Movable machine displaceablemachine The machine is placed on the ground, the use of stationary, it is equipped with a mobile device to make the machine between place, the device is usually wheel.

4 Dangerous List

Dangerous List (see Table 1) relates to all dangerous this machine.

--- For important risk, safety requirements and/or measures adopted by the law or by indicating the appropriate class B standard;

--- For hazardous unimportant, such as general, subordinate or secondary danger by indicating the appropriate Class A standards, especially GB/T 15706-2012. These risks are by GB/T 15706-2012 Appendix B raised. Table

1 Danger List No. dangerous comply with this standard Article number 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8

1.9 Mechanical hazards.

--- Consists of the following elements of the workpiece or machine parts caused by. shape; relative position; Quality and speed (controlled or uncontrolled movement of kinetic energy); Mechanical strength;

--- Accumulation of potential energy caused by the following reasons. An elastic member (spring); Under the pressure of liquid or gas; Risk of crushing Cut dangerous Cutting or severing hazard Dangerous wound The risk of introduction or involvement Shock hazard Stab or stabbed dangerous Friction or abrasion hazard High pressure fluid ejection hazard 5.3.3,5.3.5,5.3.7,5.4.5 5.2.2,5.3.3,5.3.5,5.3.6, 5.3.7,5.4.3,5.4.5 5.3.3,5.3.7 5.3.2,5.3.3 5.3.3.5 5.2.5,5.3.7,5.4.12 5.3.6 5.3.6 5.3.3.5,5.3.3.6,5.3.6 5.3.6 5.3.6 5.3.7 5.3.6.1 5.3.6.1 5.4.6 2.1 2.2

2.3 Electrical hazards, causes include. Human contact with live parts (direct contact) The human body and under fault conditions into contact with live parts (indirect contact) Static phenomenon 5.4.4 5.4.4 5.4.9 3.1

3.2 The risk of noise, resulting in. Hearing loss (deafness), other physiological disorders (such as loss of balance, loss of consciousness) Interference language communication, auditory signals, etc. 5.4.2 5.4.2

4.1 Noise generated by the danger.

5 Safety requirements and/or measures

5.1 General Requirements Safety of machine tools shall comply with the provisions of this standard should be consistent with GB 12557, the provisions of GB/T 15706-2012 of.

5.2.1 Safety and reliability of control systems

5.2.1.1 General requirements Of this standard, the safety control system from the initial device, such as a position sensor or actuator to the final mechanical actuating Structure of inputs, such as a motor or brake. The following safety control components shall comply with GB/T 16855.1-2008 tables in 10 categories Claim.

--- Start. category 1 (see 5.2.3);

--- Normal stop. category 1 (see 5.2.4);

--- Prevent accidental restart after a power source failure. category 1 (see 5.2.5);

--- Braking system. Category B, 1 or 2 (see 5.2.4,5.3.4);

--- Clamping - Close pressure monitors. category 1 (see 5.3.7); Categories do not attach more than one information given in chapter references. These control systems should be at least a "proven" to be elements and principles of design and manufacturing. Use 5.2.1.2 "proven" element This standard of "proven" and refers to the principle elements.

a) electrical components shall comply with the relevant national standards, industry standards, including the following components.

--- Forced off control switch (position sensors for interlocking guards as mechanically operated) and for auxiliary power The road relay should meet the requirements of GB 14048.5;

--- For electromechanical contactors and motor starters on the main circuit should meet the requirements of GB 14048.4;

--- Rubber insulated cables shall comply with GB/T 5013.1 of;

--- Fixed (for example, installed in the machine bed inside) PVC cable to prevent mechanical damage should be consistent with GB/T 5023.1 Provisions.

b) circuit in principle, should be consistent with the first four measures GB 5226.1-2008 prescribed in 9.4.2.1, the circuit should be hardwired. If the safety control system used in electronic components, it shall comply with the requirements of

9.4.2.2 in GB 5226.1-2008.

c) mechanical components should be consistent with GB/T 15706-2012 in

5.3 Protection of mechanical hazards

5.3.1 Stability Structure of the machine should be able to stationary fixed machine in a suitable stable structure (such as ground), such as holes in the rack on the base [see 6.3h)]. Portable machines with wheels, should be stable in the processing means, such means could be.

a) a wheel brake device; or

b) combined wheel and securing means; or

c) the wheel from the ground to recover the device. Inspection method. check the corresponding pattern to check the machine is attached as Appendix A and the appropriate tests.

5.3.2 operation of fracture risk Guard cutter at least the following materials.

a) steel, tensile strength of not less than 350N/mm2, thickness of at least 1.5mm;

b) a light alloy, in accordance with Table 2; Table

5.3.3 Structure of tool and toolholder

5.3.3.1 blade design The tool should be consistent with GB 18955 requirements. Inspection method. check the corresponding pattern to check the machine. Design

5.3.3.2 saw shaft Materials saw axis is not less than the tensile strength of 580N/mm2 steel. Its tolerance should be consistent with GB/T 19992-2005 Chapter 5 G4 and G5 requirements. The direction of rotation of the blade should be. the blade cutting force in the direction opposite to the direction of the guide. Inspection method. check the corresponding drawings, measurements and tests for the corresponding function, and the steel manufacturer's warranty on the machine.

5.3.3.3 Spindle locking Tool change spindle shall remain stationary, and provide a spindle locking device. Adopt double wrench, or by an operator to insert a lock in the spindle Given rod. When locked, you can prevent the knife shaft, and when the locking device is in place, start the saw motor shaft locking device should not be distorted. Inspection method. check the corresponding drawings and/or circuit diagrams, inspection machine, and as a functional test on the machine.

5.3.3.4 blade installation You can not install the blade is greater than the maximum diameter and thickness of the blade design. For example, by the blade guard design (see 5.3.6.1). The machine should be designed to ensure that no more than 6mm Installation cutting width of the circular saw blade. Two blade flange should meet the following requirements.

a) When the saw blade diameter is less than or equal to 450mm, the diameter of at least two flanges (Wherein, D is the largest design straight blade Diameter); when the blade diameter is greater than 450mm, the diameter of at least two flanges , But not less than 115mm.

b) two flange diameter tolerance of ± 1mm.

c) an external flange clamping surface width of at least 5mm, and concave (see Figure 3). Starting, running, coasting or braking, should the blade against rotation, for example by sawing blade shaft and forced coupling, or front flange And saw forced coupling shaft to achieve.

Inspection method. check the corresponding drawings and/or circuit diagrams, measurement, inspection, and for the corresponding function on the machine test.

5.3.3.5 Return Control Saw unit should be installed a handle to control its movement along the arm. The curved handle designed to handle. In the stop position, the automatic cutting unit should have a bayonet, bayonet release handle on top of or next to the controller, so that when the handle sawing When the unit along the rocker motion, the controller can be released by a movement of his hand. Sawing unit should automatically return to the stop position in the 3s, for example, by a spring or gravity. Shall not exceed the maximum speed backhaul 1.0m/s. The machine should be installed a device to prevent the saw unit forward acceleration during cutting, causing the blade snaps into the workpiece. By Ann Install a mechanical or hydraulic restriction device, such as the inertia of retraction system [see 6.3b)]. Inspection method. check the corresponding drawings and/or circuit diagrams, measurement, inspection, and for the corresponding function on the machine test.

5.3.3.6 limit rotation of the saw unit Both sides of the angle of the arm supporting the saw unit for rotation about a vertical axis, to change the direction of travel, which guide plate is perpendicular to the workpiece should be limited 48 ° or less. When the rocker arm about a vertical axis of rotation may have one or both sides Chaoguo 48 °, but not more than 70 °, and should provide an adjustable work in the relevant area Member clamping device. Rotation Y-axis direction perpendicular to the saw unit can not make the rocker arm, except when mounting the blade. For limiting the rotation of the saw unit adjustment Cutting means is an integral part of the support unit. For limiting the adjustment pin or nuts and bolts should be used welding or interference fit to You can not be removed. Inspection method. check the corresponding drawings and/or circuit diagrams, measurement, inspection, and for the corresponding function on the machine test.

5.3.3.7 saw unit tilting limit Saw unit about the tilt angle of the X-axis on both sides of the Y-axis can not e...

5.4 Non-mechanical hazards Protection

5.4.8 Laser 5.1

5.2 When the machining, materials and substances used or discharged dangers arising, for example. Due to the risk of contact or inhalation of harmful fluids, gases, fumes and dust caused Fire danger 5.4.3

5.4.1 Table 1 (continued) No. dangerous comply with this standard Article number 6.1 6.2 6.3 6.4

6.5 Mechanical design ignored the danger to humanity learn the principles of ergonomics to produce. Unhealthy posture or excessive force Inappropriate consider a human arm or leg foot structure Human error, human behavior Manual control of the design, location or identification methods Design or location of visual display device 5.2.2,5.4.5 5.4.5 5.2.1,5.2.3,5.4.10 5.2.2,5.4.11 5.3.3.5,5.4.5 7.1 7.2 7.3

7.4 Because of unexpected start, accidental over-current, over-speed accidents (or any other similar faults) generated hazardous. Failure of the control system/fault Recovery of energy supply after the interruption External influences electrical equipment Operating error (due to mechanical features and capabilities do not match, see 8.6) 5.2.1,5.2.6 5.2.5 5.4.7 5.4.10,6.3

10 Control circuit failure 5.2.1,5.2.6 11

5.4.10 installation errors 12 control system interrupt 5.3.2,5.3.3 13 fluid mechanical parts or accidentally thrown 5.3.3.5 14 machine overturn, unexpected loss of stability 5.3.1

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 23 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 3767-1996 · GB/T 3768-1996 · GB 4208-2008 · GB/T 5013.1-2008 · GB 5226.1-2008 · GB/T 6882-2008 · GB/T 8196-2003 · GB 14048.4-2010 · GB 14048.5-2008 · GB/T 14574-2000 · GB/T 15706-2012 · GB/T 16855.1-2008 · GB/T 17248.3-1999 · GB/T 17248.5-1999 · GB 18209.1-2010 · GB/T 18831-2010 · GB 18955-2003 · GB/T 19670-2005 · GB 23821-2009 · GB/T 25078.1-2010

Similar standards

GB 12557-2024|GB 30459-2013|GB 30460-2013|GB 30461-2013|GB 31145-2014

Editions of GB 31144

Edition	Title	Revision	Status
GB 31144-2014	Safety of woodworking machines-Manual radial arm saws	current edition	Current

This page sells the current edition, GB 31144-2014. Earlier editions are listed for reference only.

How to Buy GB 31144-2014

1Add to cart. Click the "Buy GB 31144-2014" button on this page. You can add more standards before checkout.
2Checkout. Enter your email and billing details. Payment is processed securely by Stripe (cards, Apple Pay, Google Pay supported).
3Instant delivery (0–9 sec). Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4Invoice included. A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.