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WO2021094476A1 - Unité portative comprenant un laser de marquage et un lecteur de marquage - Google Patents

Unité portative comprenant un laser de marquage et un lecteur de marquage Download PDF

Info

Publication number
WO2021094476A1
WO2021094476A1 PCT/EP2020/081952 EP2020081952W WO2021094476A1 WO 2021094476 A1 WO2021094476 A1 WO 2021094476A1 EP 2020081952 W EP2020081952 W EP 2020081952W WO 2021094476 A1 WO2021094476 A1 WO 2021094476A1
Authority
WO
WIPO (PCT)
Prior art keywords
marking
laser
hand
tool according
reading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2020/081952
Other languages
German (de)
English (en)
Inventor
Reto HIDBER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trumpf Schweiz AG
Original Assignee
Trumpf Schweiz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trumpf Schweiz AG filed Critical Trumpf Schweiz AG
Publication of WO2021094476A1 publication Critical patent/WO2021094476A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0096—Portable laser equipment, e.g. hand-held laser apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/355—Texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/44—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source per colour, e.g. lighting beams or shutter arrangements
    • B41J2/442—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source per colour, e.g. lighting beams or shutter arrangements using lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/01—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for special character, e.g. for Chinese characters or barcodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/36—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability, i.e. hand-held printers or laptop printers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/126—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by photographic or thermographic registration
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2203/00—Embodiments of or processes related to the control of the printing process
    • B41J2203/01—Inspecting a printed medium or a medium to be printed using a sensing device

Definitions

  • Hand-held device with a marking laser and a marking reading device with a marking laser and a marking reading device
  • the present invention relates to a hand-held device with a marking laser for applying a marking by means of a deflectable laser beam on a work piece and with a housing that has a handle.
  • Mobile marking or inscription lasers in the form of handheld laser devices for applying one-dimensional markings (e.g. barcodes) or two-dimensional markings (eg QR codes) on a workpiece are well known.
  • handheld readers for reading such one- or two-dimensional markings on a workpiece.
  • an actual marking applied with a mobile marking laser should be checked as easily and simply as possible to determine whether it corresponds to the target marking.
  • a hand-held device of the type mentioned at the outset in that the hand-held device also has a marking reading device for reading a marking applied to a workpiece.
  • the marking laser and the marking reading device are combined in a compact hand-held device (“CodeMarkReader”) in order to provide two functions (marking and reading) in a single hand-held device.
  • CodeMarkReader a compact hand-held device
  • the hand-held device has a control which is programmed to read a marking applied with the marking laser, in particular immediately after application, by means of the marking reading device and to carry out a solst comparison of the marking read with the marking to be applied.
  • the actual marking applied can immediately be compared for correspondence with the desired marking to be applied.
  • the user only needs to position the hand-held device according to the invention once to the workpiece in order to mark the workpiece and to check the applied marking.
  • the read markings can advantageously be stored in a data memory which is connected to the mark reading device.
  • the hand-held device can have an interface connected to the data memory in order to be able to read out the stored data either wirelessly or by wire.
  • the housing preferably has a common window for the laser beam of the marking laser and for a reading beam path of the marking reading device.
  • the window can be provided with a protective glass in order to protect the sensitive optics of the marking laser and the marking reading device from damage or soiling.
  • the marking laser preferably has a scanner, in particular a MEMS (Micro-Electro-Mechanical Systems) scanner, for one- or two-dimensional deflection of the laser beam.
  • a scanner in particular a MEMS (Micro-Electro-Mechanical Systems) scanner, for one- or two-dimensional deflection of the laser beam.
  • MEMS Micro-Electro-Mechanical Systems
  • the power of the marking laser is preferably no more than 5 W.
  • the hand-held device can be connected to an external power source via a cable or, which is preferred, can have a battery or a rechargeable battery.
  • FIG. 1 is a perspective view of a Handge according to the invention.
  • FIG. 2 schematically shows the structure of a hand-held device according to the invention.
  • Handheld device 1 shown in FIGS. 1 and 2 has a housing 2 with a handle 3.
  • a marking laser 4 for applying a one-dimensional marking 5a (e.g. barcode) or two-dimensional marking 5b (e.g. QR code) by means of a deflectable laser beam 6 on a workpiece 7 and a marking reading device 8 for reading a a workpiece 7 applied marking 5 is arranged.
  • the power of the marking laser 4 should not be more than 5 W.
  • the marking laser 4 is constructed as known in the prior art and has a laser beam source 9 (e.g. laser diode) for generating the laser beam 6 and a scanner 10 arranged in front of the laser beam source 9 for one- or two-dimensional deflection of the laser beam 6.
  • the scanner 10 is preferably designed as a MEMS (Micro-Electro-Mechanical Systems) scanner, which is either an independent optics module or is integrated into a laser module together with the laser beam source 9.
  • MEMS Micro-Electro-Mechanical Systems
  • the marking reading device 8 is constructed as known in the prior art and has, for example, a camera 11 with an upstream imaging optics 12.
  • the reading beam path of the marker reading device 8 is denoted by 13 be.
  • the hand-held device 1 also has a controller 14 for controlling the marking laser 4 and the marking reading device 8 as well as a data memory 15 connected to the marking reading device 8 for storing read marks 5a, 5b. If necessary, an interface 16 is connected to the data memory 15 in order to read out the stored data wirelessly or by wire.
  • the controller 14 is preferably programmed, one Markings 5a, 5b applied with the marking laser 4 - immediately after their application - to be read by means of the marking reading device 8 and to carry out a target / actual comparison of the marks 5a, 5b read with the marking to be applied. The comparison result can then be communicated to a user by the controller 14, for example it can be displayed on a display of the hand-held device 1 (not shown here).
  • the housing 2 can have a common window 17 for the laser beam 6 and the reading beam path 13.
  • the window 17 is provided with a protective glass 18 to protect the optics 10, 12 located behind it from damage or contamination.
  • the hand-held device 1 can be connected to an external power source via a cable 19.
  • the hand-held device 1 can also be wireless and have a battery or a rechargeable battery 20 (FIG. 2) as a power supply for the marking laser 4 and the marking reading device 8.
  • the workpiece 7 does not need to be arranged exactly in the focal plane of the laser beam 3, but can also deviate from it, provided that the laser power on the workpiece 7 is sufficiently high and the focus on the workpiece 7 is mapped from sufficiently sharp.
  • the hand-held device 1 with its protective glass 18 or with its housing front side can be placed directly on the workpiece 7 to be marked.
  • the focus of the laser beam 6 is not directly in front of the protective glass 18, the correct distance between the handheld device 1 and the workpiece 7 can be ensured, for example, by means of a spacer that protrudes correspondingly far on the front of the housing in the beam direction of the laser beam 3.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Manufacturing & Machinery (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne une unité portative (1) comprenant un laser de marquage (4) pour appliquer un marquage (5a, 5b) sur une pièce (7) au moyen d'un faisceau laser pouvant être dévié (6), et comprenant un boîtier (2) qui comporte un manche (3). Selon l'invention, l'unité portative comprend également un lecteur de marquage (8) destiné à lire un marquage (5a, 5b) appliqué sur une pièce (7).
PCT/EP2020/081952 2019-11-13 2020-11-12 Unité portative comprenant un laser de marquage et un lecteur de marquage Ceased WO2021094476A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019217506.6A DE102019217506A1 (de) 2019-11-13 2019-11-13 Handgerät mit einem Markierungslaser und einer Markierungsleseeinrichtung
DE102019217506.6 2019-11-13

Publications (1)

Publication Number Publication Date
WO2021094476A1 true WO2021094476A1 (fr) 2021-05-20

Family

ID=73748019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/081952 Ceased WO2021094476A1 (fr) 2019-11-13 2020-11-12 Unité portative comprenant un laser de marquage et un lecteur de marquage

Country Status (2)

Country Link
DE (1) DE102019217506A1 (fr)
WO (1) WO2021094476A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034789A1 (fr) * 1997-02-06 1998-08-13 Chromatron Laser Systems Gmbh Dispositif permettant l'ecriture au laser sur des materiaux
DE19957390A1 (de) * 1999-11-24 2001-06-07 Andreas Kuntze Individualisierungssystem für einen Gegenstand
DE102008000503A1 (de) * 2008-03-04 2009-09-10 Dr. Teschauer Ag Verfahren zum Verifizieren von Data-Matrix-Code
DE102011083252B3 (de) * 2011-09-23 2012-12-13 Schaeffler Technologies AG & Co. KG Handgeführtes Beschriftungssystem
DE10291122B4 (de) * 2001-03-19 2014-08-28 Cognex ,Ltd. Lesegerät mit einer Bildaufnahmeeinheit zum Lesen eines Codes und Verfahren zum Lesen eines Codes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825402A (en) * 1993-03-26 1998-10-20 Symbol Technologies, Inc. Method and appratus for reading and writing indicia such as bar codes using a scanned laser beam
DE19928084C2 (de) * 1999-06-11 2003-03-27 Compact Laser Solutions Gmbh Transportables Laserbeschriftungssystem
WO2005058536A1 (fr) * 2003-12-18 2005-06-30 Retainagroup Limited Appareil laser portatif pour le marquage d'un objet
US9358091B2 (en) * 2011-04-18 2016-06-07 Inguran, Llc Two-dimensional bar codes in assisted reproductive technologies
DE102011083251B4 (de) * 2011-09-23 2014-07-24 Schaeffler Technologies Gmbh & Co. Kg Vorrichtung zur Auswertung der mit einem Beschriftungslaser auf einem Werkstück erfolgten Beschriftung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034789A1 (fr) * 1997-02-06 1998-08-13 Chromatron Laser Systems Gmbh Dispositif permettant l'ecriture au laser sur des materiaux
DE19957390A1 (de) * 1999-11-24 2001-06-07 Andreas Kuntze Individualisierungssystem für einen Gegenstand
DE10291122B4 (de) * 2001-03-19 2014-08-28 Cognex ,Ltd. Lesegerät mit einer Bildaufnahmeeinheit zum Lesen eines Codes und Verfahren zum Lesen eines Codes
DE102008000503A1 (de) * 2008-03-04 2009-09-10 Dr. Teschauer Ag Verfahren zum Verifizieren von Data-Matrix-Code
DE102011083252B3 (de) * 2011-09-23 2012-12-13 Schaeffler Technologies AG & Co. KG Handgeführtes Beschriftungssystem

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