SIST EN 12750:2013
(Main)Safety of woodworking machines - Four sided moulding machines
Safety of woodworking machines - Four sided moulding machines
This European Standard deals with all significant hazards, hazardous situations and events as listed in Clause 4, which are relevant to stationary four sided moulding machines with a maximum working width of 350 mm and a maximum speed of the integrated work-piece feed of 200 m/min, with electrical and/or electronic control system, hereafter referred to as "machines" designed to cut solid wood, chipboard, fibreboard, plywood and also these materials where these are covered with plastic laminate or edgings when they are used as intended and under the conditions foreseen by the manufacturer, including reasonably foreseeable misuse of the machine (see 6.3 c)). For the definition of a stationary machine, see 3.22. This European Standard deals also with hazards relating to the following optional work units:
- universal spindle;
- glass bead cutting unit.
This European Standard is not applicable to machines designed for machining logs which have not previously been machined. This European Standard does not deal with any hazards relating to:
a) in-feed devices (magazines, hoppers, etc.);
NOTE For mechanical in-feed devices which also prevent access to the in-feed opening, see 5.3.7.2.
b) the combination of single machines with any other machine as part of a line;
c) out-feed devices (e.g. mechanical handling systems) except for hazards related to ejection from the machine due to climb cutting. This European Standard is not applicable to four sided moulding machines which are manufactured before the date of its publication as EN.
Sicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für vierseitige Bearbeitung
Sécurité des machines pour le travail du bois - Machines à moulurer sur quatre faces
La présente Norme européenne traite de tous les phénomènes dangereux, situations et événements dangereux significatifs, tels qu'énumérés dans l'Article 4, applicables aux machines à moulurer sur quatre faces d’une largeur maximale de travail de 350 mm et d’une vitesse maximale du mécanisme d’avance de pièce de 200 m/min, équipées d’un système de commande électrique et/ou électronique, ci-après désignées « machines » conçues pour la coupe de bois massif, de panneaux de particules et de fibres, de contreplaqué ainsi que ces matériaux lorsque leurs surfaces ou leurs chants sont recouverts de matière plastique stratifiée, lorsqu’elles sont utilisées normalement et dans les conditions prévues par le fabricant, incluant une mauvaise utilisation raisonnablement prévisible de la machine (voir 6.3 c)).
Pour la définition d’une machine fixe, voir 3.22.
La présente Norme européenne traite également des phénomènes dangereux relatifs aux unités d’usinage optionnelles suivantes :
- arbre universel ;
- unité de sciage pour coupe de parcloses.
La présente Norme européenne n’est pas applicable aux machines conçues pour la découpe de grumes non précédemment usinés.
La présente Norme européenne ne couvre pas les phénomènes dangereux relatifs aux :
a) dispositifs d’avance (magasins, trémies, etc.) ;
pour les dispositifs d’avance mécanique qui empêchent également l’accès aux ouvertures d’alimentation, voir 5.3.7.2 ;
b) la combinaison des machines simples avec toute autre machine utilisée comme partie d’une ligne ;
c) dispositifs de sortie (par exemple systèmes de manutention mécanique), sauf pour les phénomènes dangereux liés à l’éjection de pièces de la machine lors d’une coupe en avalant.
La présente Norme européenne n’est pas applicable aux machines à moulurer sur quatre faces construites avant la date de sa publication comme EN.
Varnost lesnoobdelovalnih strojev - Rezkalni stroji za štiristransko obdelavo
Ta evropski standard obravnava vsa večja tveganja, nevarne razmere in dogodke iz točke 4, ki se nanašajo na stacionarne rezkalne stroje za štiristransko obdelavo z največjo delovno širino 350 mm in najvišjo hitrostjo integriranega podajalnika obdelovanca 200 m/min, ki so opremljeni z električnim in/ali elektronskim krmilnim sistemom, v nadaljnjem besedilu »stroji«, ki so namenjeni za rezanje polnega lesa, ivernih plošč, vlaknenih plošč ali vezanih plošč in teh materialov, prevlečenih s plastjo ali obrobo iz plastike, ter se uporabljajo v skladu z namenom in pod pogoji, ki jih je predvidel proizvajalec, vključno z razumno predvideno nepravilno uporabo stroja (glej točko 6.3.c)). Za definicijo stacionarnega stroja glej točko 3.22. Ta evropski standard obravnava tudi tveganja, povezana z naslednjimi izbirnimi delovnimi enotami:
– univerzalno vreteno;
– rezalna enota za steklene kroglice.
Ta evropski standard se ne uporablja za stroje, namenjene za strojno obdelavo hlodov, ki še niso bili strojno obdelani. Ta evropski standard ne obravnava nevarnosti, povezanih z naslednjimi napravami:
a) podajalnimi napravami (nabojniki, dozirniki itd.);
OPOMBA Za mehanske podajalne naprave, ki preprečujejo dostop do odprtine za podajanje, glej točko 5.3.7.2.
b) kombinacijo posameznih strojev in drugih strojev kot del proizvodnje;
c) izvržne naprave (npr. sistemi za mehansko upravljanje), razen za nevarnosti v povezavi z izvrženjem iz stroja zaradi rezanja navzgor. Ta evropski standard se ne uporablja za rezkalne stroje za štiristransko obdelavo, ki so bili izdelani pred objavo dokumenta kot standarda EN.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Varnost lesnoobdelovalnih strojev - Rezkalni stroji za štiristransko obdelavoSicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für vierseitige BearbeitungSécurité des machines pour le travail du bois - Machines à moulurer sur quatre facesSafety of woodworking machines - Four sided moulding machines79.120.10Lesnoobdelovalni strojiWoodworking machinesICS:Ta slovenski standard je istoveten z:EN 12750:2013SIST EN 12750:2013en,fr,de01-april-2013SIST EN 12750:2013SLOVENSKI
STANDARDSIST EN 12750:2002+A1:20091DGRPHãþD
SIST EN 12750:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12750
February 2013 ICS 79.120.10 Supersedes EN 12750:2001+A1:2009English Version
Safety of woodworking machines - Four sided moulding machines
Sécurité des machines pour le travail du bois - Machines à moulurer sur quatre faces
Sicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für vierseitige Bearbeitung This European Standard was approved by CEN on 15 December 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12750:2013: ESIST EN 12750:2013
EN 12750:2013 (E) 2 Contents Page Foreword . 4 Introduction . 6 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 10 4 List of significant hazards . 15 5 Safety requirements and/or measures . 17 5.1 General . 17 5.2 Controls . 18 5.2.1 Safety and reliability of control systems . 18 5.2.2 Position of controls . 20 5.2.3 Starting . 21 5.2.4 Normal stopping . 21 5.2.5 Emergency stop . 22 5.2.6 Mode selection . 23 5.2.7 Speed changing . 24 5.2.8 Direction of rotation . 25 5.2.9 Integrated feed . 26 5.2.10 Adjustment of spindles, spindle units, fences, table height, chip breakers and pressure shoes . 27 5.2.11 Control duplication . 28 5.2.12 Failure of the power supply . 28 5.3 Protection against mechanical hazards . 29 5.3.1 Stability . 29 5.3.2 Risk of break-up during operation . 29 5.3.3 Tool holder and tool design . 29 5.3.4 Braking . 31 5.3.5 Devices to minimise the possibility or the effect of ejection . 33 5.3.6 Work-piece supports and guides . 39 5.3.7 Prevention of access to moving parts and ejection of parts of tools . 41 5.3.8 Required characteristics of tool guards . 45 5.3.9 Retaining devices . 46 5.4 Protection against non-mechanical hazards . 46 5.4.1 Fire . 46 5.4.2 Noise . 46 5.4.3 Emission of chips and dust . 48 5.4.4 Hot surfaces . 49 5.4.5 Electricity . 49 5.4.6 Ergonomics and handling . 49 5.4.7 Lighting. 50 5.4.8 Pneumatics . 50 5.4.9 Hydraulics . 50 5.4.10 Electromagnetic immunity . 51 5.4.11 Static electricity . 51 5.4.12 Supply disconnection (isolation) . 51 5.4.13 Errors of fitting . 51 5.4.14 Maintenance . 51 6 Information for use . 52 SIST EN 12750:2013
EN 12750:2013 (E) 3 6.1 Warning devices . 52 6.2 Marking . 52 6.3 Instruction handbook . 53 Annex A (normative)
Spindles dimensional tolerances . 58 Annex B (normative)
Braking tests . 59 B.1 Conditions for all tests . 59 B.2 Un-braked run-down time . 59 B.3 Braked run-down time . 59 B.4 Run-up time . 60 Annex C (normative)
Table lip resistance test . 61 C.1 General . 61 C.2 Test probe . 61 C.3 Measurements . 63 C.4 Tests . 63 C.5 Result . 64 C.6 Test report . 64 Annex D (normative)
Impact test method for guards . 65 D.1 General . 65 D.2 Test method . 65 D.2.1 Preliminary remarks . 65 D.2.2 Testing equipment. 65 D.2.3 Projectile for guards . 65 D.2.4 Sampling . 66 D.2.5 Test procedure . 66 D.3 Results . 66 D.4 Assessment . 66 D.5 Test report . 67 D.6 Test equipment for impact test . 67 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 68 Bibliography . 69
SIST EN 12750:2013
EN 12750:2013 (E) 4 Foreword This document (EN 12750:2013) has been prepared by Technical Committee CEN/TC 142 “Woodworking machines - Safety”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2013, and conflicting national standards shall be withdrawn at the latest by August 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12750:2001+A1:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive 2006/42/EC, see informative Annex ZA, which is an integral part of this document. The following most significant changes have been made in comparison with EN 12750:2001+A1:2009: a) In Clause 1 Scope: The scope has been limited to machines having a maximum speed of the integrated work-piece feed of 200 m/min; b) In 5.2.1 Safety and reliability of control systems: Application of EN ISO 13849, i.e. by requiring PL for the machine's safety functions; c) In 5.2.7 Speed changing: concretion of requirements for different technologies; d) In 5.2.9 Integrated feed: Additional requirements related to the powered adjustment of spindle position, height adjustment of the feed mechanism, fences, table height, chip breakers and pressure shoes; e) In 5.3.4 Braking: concretion of requirements for different braking systems; f) In 5.3.5.2 Out-feed end of the machine: Additional requirements to prevent ejection from the machine; g) In 5.3.5.3 Use of glass bead cutting unit: Additional requirements for the glass bead cutting unit; h) In 5.3.7 Prevention of access to moving parts and ejection of parts of tools: concretion of requirements related to the safeguarding of the tools and ejection of parts of tools; i) In 5.4.2.1 Noise reduction at the design stage: Additional requirements related to integrated enclosures; j) In 5.4.2.2 Noise emission measurement: Additional noise emission test for machines having a maximum feed speed > 40 m/min; k) In 5.4.3 Emission of chips and dust: Additional requirements related to the emission of chips and dust; l) In 6.3 Instruction handbook: The sermon to be provided by the manufacturer has been extended to a large extent. Organisations contributing to the preparation of this European Standard include the European Manufacturers Association "EUMABOIS". SIST EN 12750:2013
EN 12750:2013 (E) 5 The European Standards produced by CEN/TC 142 are particular to woodworking machines and complement the relevant A and B Standards on the subject of general safety (see Introduction of EN ISO 12100:2010 for a description of A, B and C standards). According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12750:2013
EN 12750:2013 (E) 6 Introduction This document has been prepared to be a harmonised standard to provide one means of conforming to the Essential Health and Safety Requirements of the Machinery Directive and associated EFTA Regulations. This document is a type C standard as defined in EN ISO 12100:2010. The machinery concerned and the extent to which hazards, hazardous situations and events are covered is indicated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of other standards, for machines that have been designed and built according to the provisions of this type C standard. The requirements of this document are directed to manufacturers and their authorised representatives of four sided moulding machines. This document is also useful for designers. This document also includes provisions and examples of information to be provided by the manufacturer to the user. Common requirements for tooling are given in EN 847-1:2005+A1:2007.
SIST EN 12750:2013
EN 12750:2013 (E) 7 1 Scope This European Standard deals with all significant hazards, hazardous situations and events as listed in Clause 4, which are relevant to stationary four sided moulding machines with a maximum working width of 350 mm and a maximum speed of the integrated work-piece feed of 200 m/min, with electrical and/or electronic control system, hereafter referred to as "machines" designed to cut solid wood, chipboard, fibreboard, plywood and also these materials where these are covered with plastic laminate or edgings when they are used as intended and under the conditions foreseen by the manufacturer, including reasonably foreseeable misuse of the machine (see 6.3 c)). For the definition of a stationary machine, see 3.22. This European Standard deals also with hazards relating to the following optional work units: universal spindle; glass bead cutting unit. This European Standard is not applicable to machines designed for machining logs which have not previously been machined. This European Standard does not deal with any hazards relating to: a) in-feed devices (magazines, hoppers, etc.);
NOTE For mechanical in-feed devices which also prevent access to the in-feed opening, see 5.3.7.2. b) the combination of single machines with any other machine as part of a line; c) out-feed devices (e.g. mechanical handling systems) except for hazards related to ejection from the machine due to climb cutting. This European Standard is not applicable to four sided moulding machines which are manufactured before the date of its publication as EN. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles
EN 847-1:2005+A1:2007, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular saw blades EN 894-1:1997+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 1: General principles for human interactions with displays and control actuators EN 894-2:1997+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 2: Displays EN 894-3:2000+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 3: Control actuators SIST EN 12750:2013
EN 12750:2013 (E) 8 EN 953:1997+A1:2009, Safety of machinery — Guards — General requirements for the design and construction of fixed and movable guards EN 1005-1:2001+A1:2008, Safety of machinery — Human physical performance — Part 1: Terms and definitions EN 1005-2:2003+A1:2008, Safety of machinery — Human physical performance — Part 2: Manual handling of machinery and component parts of machinery EN 1005-3:2002+A1:2008, Safety of machinery — Human physical performance — Part 3: Recommended force limits for machinery operation EN 1005-4:2005+A1:2008, Safety of machinery — Human physical performance — Part 4: Evaluation of working postures and movements in relation to machinery EN 1037:1995+A1:2008, Safety of machinery — Prevention of unexpected start-up EN 1088:1995+A2:2008, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection EN 1760-2:2001+A1:2009, Safety of machinery — Pressure sensitive protective devices — Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars EN 1837:1999+A1:2009, Safety of machinery — Integral lighting of machines
EN 50178:1997, Electronic equipment for use in power installations EN 50370-1:2005, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part 1: Emission EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part 2: Immunity EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1:2005, modified) EN 60439-1:19991), Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999) EN 60529:19912), Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) EN 61310-1:2008, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1:2007) EN 61496-1:2004, Safety of machinery — Electro-sensitive protective equipment — Part 1: General requirements and tests (IEC 61496-1:2004, modified) EN 61800-5-2:2007, Adjustable speed electrical power drive systems — Part 5-2: Safety requirements — Functional (IEC 61800-5-2:2007) EN ISO 286-2:2010, Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes — Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
(ISO 286-2:2010)
1) This document is impacted by the amendment EN 60439-1:1999/A1:2004. 2) This document is impacted by the amendment EN 60529:1991/A1:2000. SIST EN 12750:2013
EN 12750:2013 (E) 9 EN ISO 354:2003, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003) EN ISO 3743-1:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 1: Comparison method for a hard-walled test room (ISO 3743-1:2010) EN ISO 3743-2:2009, Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation test rooms (ISO 3743-2:1994) EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010) EN ISO 3745:2012, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms (ISO 3745:2012) EN ISO 3746:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:2010) EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their components (ISO 4413:2010) EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their components (ISO 4414:2010) EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 9614-1:2009, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points (ISO 9614-1:1993) EN ISO 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections (ISO 11202:2010) EN ISO 11204:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections (ISO 11204:2010) EN ISO 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and equipment — Part 1: Planning (ISO/TR 11688-1:1995) EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction (ISO 12100:2010)
EN ISO 13732-1:2008, Ergonomics of the thermal environment — Methods for the assessment of human responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1:2006)
EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of controls systems — Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13850:2008, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006) EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008) SIST EN 12750:2013
EN 12750:2013 (E) 10 EN ISO 15667:2000, Acoustics — Guidelines for noise control by enclosures and cabins (ISO 15667:2000) ISO 7960:1995, Airborne noise emitted by machine tools — Operating conditions for woodworking machines 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply. 3.1 four sided moulding machine machine where the work-piece, once loaded manually or by magazine, moves by an integrated feed mechanism; the machine has at least four work units with rotating planing or moulding tools, where one unit is located on each longitudinal side of the work-piece; the spindles have horizontal and/or vertical axes which can be adjusted manually or under power; the machine can be fitted with additional work units such as universal spindle(s) or glass bead cutting unit(s) Note 1 to entry: Machines where the first feed roller is fitted after the first tool are, for the purpose of this document, integrated fed machines. 3.2 universal spindle work unit, the position of which can be changed manually or under power so as to allow it to work at different positions around the work-piece 3.3 glass bead cutting unit work unit fitted with a tool, usually a saw blade, with or without coaxial mounted milling tool, to cut out a glass bead from the machined profile of the work-piece Note 1 to entry: See also Figure 1. SIST EN 12750:2013
EN 12750:2013 (E) 11
Key 1 glass bead saw-blade 2 bed ledge separator 3 anti-kickback finger 4 pressure device 5 guiding channel for glass bead ledge 6 glass bead ledge 7 work-piece 8 fence 9 feed direction Figure 1 — Example of a glass bead cutting unit 3.4 hydraulic tool fixing device device for clamping the tool to the spindle using hydraulic pressure 3.5 integrated feed on four sided moulding machines feed mechanism for the work-piece or tool which is integrated with the machine and where the work-piece or machine element with incorporated tool are held and controlled mechanically during the machining operation 3.6 loading of four sided moulding machines manual or automatic placing of the work-piece on to a carriage, magazine, lift, hopper, movable bed, conveyor or the presentation of the work-piece to an integrated feed device 3.7 climb cutting cutting where the projection of the movement of the cutting knife in direction of the feed movement shows in the same direction as the relative movement of the work-piece against the tool Note 1 to entry: See also Figure 2. SIST EN 12750:2013
EN 12750:2013 (E) 12
Key 1 tool, fixed axis 2 tool, moving axis 3 feed direction (work piece) 4 work piece (moving) 5 feed direction (tool) 6 work piece
...
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Varnost lesnoobdelovalnih strojev - Rezkalni stroji za štiristransko obdelavoSicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für vierseitige BearbeitungSécurité des machines pour le travail du bois - Machines à moulurer sur quatre facesSafety of woodworking machines - Four sided moulding machines79.120.10Lesnoobdelovalni strojiWoodworking machinesICS:Ta slovenski standard je istoveten z:FprEN 12750kSIST FprEN 12750:2012en,fr,de01-oktober-2012kSIST FprEN 12750:2012SLOVENSKI
STANDARD
kSIST FprEN 12750:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 12750
June 2012 ICS 79.120.10 Will supersede EN 12750:2001+A1:2009English Version
Safety of woodworking machines - Four sided moulding machines
Sécurité des machines pour le travail du bois - Machines à moulurer sur quatre faces
Sicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für vierseitige Bearbeitung This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee CEN/TC 142.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 12750:2012: EkSIST FprEN 12750:2012
FprEN 12750:2012 (E) 2 Contents Page Foreword .4Introduction .51 Scope .62 Normative references .63 Terms and definitions .94 List of significant hazards . 145 Safety requirements and/or measures . 165.1 General . 165.2 Controls . 175.2.1 Safety and reliability of control systems . 175.2.2 Position of controls . 195.2.3 Starting . 205.2.4 Normal stopping . 205.2.5 Emergency stop . 215.2.6 Mode selection . 225.2.7 Speed changing . 225.2.8 Direction of rotation. 245.2.9 Integrated feed . 245.2.10 Adjustment of spindles, spindle units, fences, table height, chip breakers and pressure shoes . 265.2.11 Control duplication . 275.2.12 Failure of the power supply . 275.3 Protection against mechanical hazards . 275.3.1 Stability . 275.3.2 Risk of break-up during operation . 285.3.3 Tool holder and tool design . 285.3.4 Braking . 305.3.5 Devices to minimise the possibility or the effect of ejection . 315.3.6 Work-piece supports and guides . 375.3.7 Prevention of access to moving parts and ejection of parts of tools . 395.3.8 Required characteristics of tool guards . 435.3.9 Retaining devices . 445.4 Protection against non-mechanical hazards . 445.4.1 Fire . 445.4.2 Noise . 445.4.3 Emission of chips and dust . 465.4.4 Hot surfaces . 475.4.5 Electricity . 475.4.6 Ergonomics and handling . 475.4.7 Lighting . 485.4.8 Pneumatics . 485.4.9 Hydraulics . 485.4.10 Electromagnetic immunity . 485.4.11 Static electricity . 495.4.12 Supply disconnection (isolation) . 495.4.13 Errors of fitting . 495.4.14 Maintenance . 496 Information for use . 50kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 3 6.1 Warning devices . 506.2 Marking . 506.3 Instruction handbook . 51Annex A (normative)
Spindles dimensional tolerances . 56Annex B (normative)
Braking tests . 57B.1 Conditions for all tests . 57B.2 Unbraked run-down time . 57B.3 Braked run-down time . 57B.4 Run-up time . 58Annex C (normative)
Table lip resistance test . 59C.1 General . 59C.2 Test probe . 59C.3 Measurements . 61C.4 Tests . 61C.5 Result . 62C.6 Test report . 62Annex D (normative)
Impact test method for guards . 63D.1 General . 63D.2 Test method . 63D.2.1 Preliminary remarks . 63D.2.2 Testing equipment . 63D.2.3 Projectile for guards . 63D.2.4 Sampling. 64D.2.5 Test procedure . 64D.3 Results . 64D.4 Assessment . 64D.5 Test report . 65D.6 Test equipment for impact test . 65Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 66Bibliography . 67 kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 4 Foreword This document (FprEN 12750:2012) has been prepared by Technical Committee CEN/TC 142 “Woodworking machines - Safety”, the secretariat of which is held by UNI. This document is currently submitted to the Unique Acceptance Procedure. This document will supersede EN 12750:2001+A1:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive 2006/42/EC, see informative Annex ZA, which is an integral part of this document. The most significant changes have been made in comparison with EN 12750:2001+A1:2009: a) In Clause 1 Scope: The scope has been limited to machines having a maximum speed of the integrated work-piece feed of 200 m/min; b) In 5.2.1 Safety and reliability of control systems: Application of EN ISO 13849, i.e. by requiring PL for the machine's safety functions; c) In 5.2.7 Speed changing: concretion of requirements for different technologies; d) In 5.2.9 Integrated feed: Additional requirements related to the powered adjustment of spindle position, height adjustment of the feed mechanism, fences, table height, chip breakers and pressure shoes; e) In 5.3.4 Braking: concretion of requirements for different braking systems; f) In 5.3.5.2 Out-feed end of the machine: Additional requirements to prevent ejection from the machine; g) In 5.3.5.3 Use of glass bead cutting unit: Additional requirements for the glass bead cutting unit; h) In 5.3.7 Prevention of access to moving parts and ejection of parts of tools: concretion of requirements related to the safeguarding of the tools and ejection of parts of tools; i) In 5.4.2.1 Noise reduction at the design stage: Additional requirements related to integrated enclosures; j) In 5.4.2.2 Noise emission measurement: Additional noise emission test for machines having a maximum feed speed > 40 m/min; k) In 5.4.3 Emission of chips and dust: Additional requirements related to the emission of chips and dust; l) In 6.3 Instruction handbook: The sermon to be provided by the manufacturer has been extended to a large extent. Organisations contributing to the preparation of this European Standard include the European Manufacturers Association "EUMABOIS". The European Standards produced by CEN/TC 142 are particular to woodworking machines and complement the relevant A and B Standards on the subject of general safety (see Introduction of EN ISO 12100:2010 for a description of A, B and C standards). kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 5 Introduction This document has been prepared to be a harmonised standard to provide one means of conforming to the Essential Health and Safety Requirements of the Machinery Directive and associated EFTA Regulations. This document is a type C standard as defined in EN ISO 12100:2010. The machinery concerned and the extent to which hazards, hazardous situations and events are covered is indicated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of other standards, for machines that have been designed and built according to the provisions of this type C standard. The requirements of this document are directed to manufacturers and their authorised representatives of four sided moulding machines. This document is also useful for designers. This document also includes provisions and examples of information to be provided by the manufacturer to the user. Common requirements for tooling are given in EN 847-1:2005+A1:2007.
kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 6 1 Scope This European Standard deals with all significant hazards, hazardous situations and events as listed in Clause 4, which are relevant to stationary four sided moulding machines with a maximum working width of 350 mm and a maximum speed of the integrated work-piece feed of 200 m/min, with electrical and/or electronic control system, hereafter referred to as "machines" designed to cut solid wood, chipboard, fibreboard, plywood and also these materials where these are covered with plastic laminate or edgings when they are used as intended and under the conditions foreseen by the manufacturer, including reasonably foreseeable misuse of the machine (see 6.3 c)). For the definition of a stationary machine, see 3.22. This European Standard deals also with hazards relating to the following optional work units: universal spindle; glass bead cutting unit. This European Standard is not applicable to machines designed for machining logs which have not previously been machined. This European Standard does not deal with any hazards relating to: a) in-feed devices (magazines, hoppers, etc.);
for mechanical in-feed devices which also prevent access to the in-feed opening, see 5.3.7.2; b) the combination of single machines with any other machine as part of a line; c) out-feed devices (e.g. mechanical handling systems) except for hazards related to ejection from the machine due to climb cutting. This European Standard is not applicable to four sided moulding machines which are manufactured before the date of its publication as EN. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles
EN 847-1:2005+A1:2007, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular saw blades EN 894-1:1997+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 1: General principles for human interactions with displays and control actuators EN 894-2:1997+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 2: Displays EN 894-3:2000+A1:2008, Safety of machinery — Ergonomics requirements for the design of displays and control actuators — Part 3: Control actuators kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 7 EN 953:1997+A1:2009, Safety of machinery — Guards — General requirements for the design and construction of fixed and movable guards EN 1005-1:2001+A1:2008, Safety of machinery — Human physical performance — Part 1: Terms and definitions EN 1005-2:2003+A1:2008, Safety of machinery — Human physical performance — Part 2: Manual handling of machinery and component parts of machinery EN 1005-3:2002+A1:2008, Safety of machinery — Human physical performance — Part 3: Recommended force limits for machinery operation EN 1005-4:2005+A1:2008, Safety of machinery — Human physical performance — Part 4: Evaluation of working postures and movements in relation to machinery EN 1037:1995+A1:2008, Safety of machinery — Prevention of unexpected start-up EN 1088:1995+A2:2008, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection EN 1760-2:2001+A1:2009, Safety of machinery — Pressure sensitive protective devices — Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars EN 1837:1999+A1:2009, Safety of machinery — Integral lighting of machines
EN 50178:1997, Electronic equipment for use in power installations EN 50370-1:2005, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part 1: Emission EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part 2: Immunity EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1:2005, modified) EN 60439-1:19991), Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially type-tested assemblies (IEC 60439-1:1999) EN 60529:19912), Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) EN 61310-1:2008, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1:2007) EN 61496-1:2004, Safety of machinery — Electro-sensitive protective equipment — Part 1: General requirements and tests (IEC 61496-1:2004, modified) EN 61800-5-2:2007, Adjustable speed electrical power drive systems — Part 5-2: Safety requirements — Functional (IEC 61800-5-2:2007) EN ISO 286-2:2010, Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes — Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
(ISO 286-2:2010)
1) This document is impacted by the amendment EN 60439-1:1999/A1:2004. 2) This document is impacted by the amendment EN 60529:1991/A1:2000. kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 8 EN ISO 354:2003, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003) EN ISO 3743-1:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 1: Comparison method for a hard-walled test room (ISO 3743-1:2010) EN ISO 3743-2:2009, Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation test rooms (ISO 3743-2:1994) EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010) EN ISO 3745:2009, Acoustics — Determination of sound power levels of noise sources using sound pressure — Precision methods for anechoic and semi-anechoic rooms (ISO 3745:2003) EN ISO 3746:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:2010) EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their components (ISO 4413:2010) EN ISO 4414:2010, Pneumatic fluid power — General rules and safety requirements for systems and their components (ISO 4414:2010) EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 9614-1:2009, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1: Measurement at discrete points (ISO 9614-1:1993) EN ISO 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections (ISO 11202:2010) EN ISO 11204:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections (ISO 11204:2010) EN ISO 11688-1:2009, Acoustics — Recommended practice for the design of low-noise machinery and equipment — Part 1: Planning (ISO/TR 11688-1:1995) EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction (ISO 12100:2010)
EN ISO 13732-1:2008, Ergonomics of the thermal environment — Methods for the assessment of human responses to contact with surfaces — Part 1: Hot surfaces (ISO 13732-1:2006)
EN ISO 13849-1:2008, Safety of machinery — Safety-related parts of controls systems — Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13850:2008, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006) EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008) EN ISO 15667:2000, Acoustics — Guidelines for noise control by enclosures and cabins (ISO 15667:2000) kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 9 ISO 7960:1995, Airborne noise emitted by machine tools — Operating conditions for woodworking machines 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply. 3.1 four sided moulding machine machine where the work-piece, once loaded manually or by magazine, moves by an integrated feed mechanism; the machine has at least four work units with rotating planing or moulding tools, where one unit is located on each longitudinal side of the work-piece; the spindles have horizontal and/or vertical axes which can be adjusted manually or under power; the machine can be fitted with additional work units such as universal spindle(s) or glass bead cutting unit(s) Note 1 to entry: Machines where the first feed roller is fitted after the first tool are, for the purpose of this document, integrated fed machines. 3.2 universal spindle work unit, the position of which can be changed manually or under power so as to allow it to work at different positions around the work-piece 3.3 glass bead cutting unit work unit fitted with a tool, usually a saw blade, with or without coaxial mounted milling tool, to cut out a glass bead from the machined profile of the work-piece (e.g. see Figure 1) kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 10
Key 1 glass bead saw-blade 2 bed ledge separator 3 anti-kickback finger 4 pressure device 5 guiding channel for glass bead ledge 6 glass bead ledge 7 work-piece 8 fence 9 feed direction Figure 1 — Example of a glass bead cutting unit 3.4 hydraulic tool fixing device device for clamping the tool to the spindle using hydraulic pressure 3.5 integrated feed on four sided moulding machines feed mechanism for the work-piece or tool which is integrated with the machine and where the work-piece or machine element with incorporated tool are held and controlled mechanically during the machining operation 3.6 loading of four sided moulding machines manual or automatic placing of the work-piece on to a carriage, magazine, lift, hopper, movable bed, conveyor or the presentation of the work-piece to an integrated feed device 3.7 climb cutting cutting in which the relative direction of the tool movement to the work-piece is as illustrated in Figure 2: kSIST FprEN 12750:2012
FprEN 12750:2012 (E) 11
Key 1 tool, fixed axis 2 tool, moving axis 3 feed direction (work piece) 4 work piece (moving) 5 feed direction (tool) 6 work piece (fixed) Figure 2 — Climb cutting 3.8 cutting area of the tool area where the tool can be involved in the cutting process 3.9 non-cutting area of the tool area of the tool not involved in the cutting process 3.10 ejection uncontrolled movement of the work-piece or parts of it or part of the tool from the machine during processing 3.11 kickback unexpected sudden movement of the work-piece or parts of it opposite to the direction of feed during processing 3.1
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