WO1999021722A2 - Systeme de marquage laser integrant la verification de la deflexion du faisceau et une commande automatique de l'intensite du faisceau - Google Patents

Systeme de marquage laser integrant la verification de la deflexion du faisceau et une commande automatique de l'intensite du faisceau Download PDF

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Publication number
WO1999021722A2
WO1999021722A2 PCT/US1998/022355 US9822355W WO9921722A2 WO 1999021722 A2 WO1999021722 A2 WO 1999021722A2 US 9822355 W US9822355 W US 9822355W WO 9921722 A2 WO9921722 A2 WO 9921722A2
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WO
WIPO (PCT)
Prior art keywords
laser beam
laser
deflection
sensor
output
Prior art date
Application number
PCT/US1998/022355
Other languages
English (en)
Other versions
WO1999021722A3 (fr
Inventor
Fred L. Calhoun
Original Assignee
Industrial Dynamics Co., Ltd.
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 Industrial Dynamics Co., Ltd. filed Critical Industrial Dynamics Co., Ltd.
Priority to AU11135/99A priority Critical patent/AU1113599A/en
Publication of WO1999021722A2 publication Critical patent/WO1999021722A2/fr
Publication of WO1999021722A3 publication Critical patent/WO1999021722A3/fr

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Classifications

    • 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
    • B41J2/47—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 the combination of scanning and modulation of light
    • B41J2/471—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 the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/68—Applications of cutting devices cutting parallel to the direction of paper feed
    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/044—Cassettes or cartridges containing continuous copy material, tape, for setting into printing 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms

Definitions

  • the present invention relates to product and product packaging marking systems, and more particularly to marking systems for marking product packages with date codes, batch codes and the like.
  • One common type of product marking currently being used is a relatively conventional ink jet dot matrix printer-type marking. When working properly, such marking is good, though it has the disadvantages of requiring a drying or setting time before the same will not smear. It also has the disadvantage of its operation not being readily verifiable, and is subject to incomprehensible marking because of print head clogging.
  • various types of product packages may be readily marked as desired, provided that the type of laser (wavelength and power) is appropriately selected for the surface to be marked.
  • a CO 2 laser of approximately 10 watts of power and with an output wavelength of 10.6 microns will readily write directly onto a cardboard box such as is commonly used for packaging cereal and other food products, providing a high quality marking without penetrating the package.
  • a CO 2 laser will also quickly burn through a thin layer of paint such as is commonly used for decorative purposes on soft drink cans to provide clear and durable markings thereon.
  • a YAG laser is more appropriate.
  • Laser marking of product packages has the advantage of being fast, of providing a clean and accurate marking requiring no drying or set time, and of not easily being obliterated short of substantial damage to the product package.
  • laser marking also has had the disadvantage of not being readily verifiable short of visual observation of the marking, usually on randomly selected packages .
  • Optical character recognition techniques may be used for verification purposes on ink jet or laser systems, but they are very costly, sometimes costing more than the coders.
  • lasers and laser deflection systems are quite reliable and of course are not subject to drying up, clogging or the like, laser intensity does tend to drift with time, usually toward less beam intensity, and lasers have a limited useful duration between gas replenishment and the like.
  • laser deflection systems are also quite reliable and will also generally operate without service somewhat longer than a laser
  • deflection systems are also not perfect, and could unexpectedly be subject to deteriorating performance or catastrophic failure.
  • laser marking systems offer certain distinct advantages, such as being able to cleanly and accurately mark product packages on the fly without either touching or being in very close proximity to the packages
  • prior art laser marking systems have shared the shortcoming of other prior art marking systems of not having a reliable and economical way of verifying continued proper operation of the marking system.
  • a laser marking system with beam deflection verification and automatic beam intensity control for marking products and product packaging with information such as batch numbers and date codes is disclosed.
  • the laser coding system includes a computer controlled laser, together with a computer controlled laser beam deflection system, to directly write on product packages or products by burning the marking thereinto or through a coating thereon.
  • the laser beam deflection system includes deflection system position sensors to provide outputs indicative of the then present position of the deflectors. These deflection system sensor outputs are correlated with the deflection system command signals to detect any abnormal deviations between the commanded positions and the actual positions indicative of a deflection system failure.
  • a sensor is also provided for sensing the laser intensity to verify proper laser operation and to allow automatic laser power control measurement of the laser beam intensity by deflection of the beam to an out-of-range position for product marking, further verifying deflection system operation, as well as verifying laser operation and providing a signal for laser power control.
  • Various features such as the ability to verify operation while writing on moving product packages, and alternate embodiments, are disclosed.
  • Figure 1 is a perspective view of a representative embodiment of the present invention.
  • Figure 2 is a block diagram of an exemplary embodiment of the system of Figure 1.
  • Figure 3 is a block diagram of an alternate exemplary embodiment of the system of Figure 1.
  • Figure 4 illustrates one embodiment of a deflection system of the present invention.
  • Figure 5 illustrates an exemplary embodiment of the deflection system of Figure 4.
  • Figure 6 illustrates a second embodiment of a deflection system of the present invention.
  • Figure 7 illustrates a third embodiment of a deflection system of the present invention.
  • FIG. 1 a perspective view of a representative embodiment of the present invention may be seen.
  • This embodiment happens to illustrate a marking system for marking directly on product packages 20, such as individual cereal boxes and the like, as the sa e pass the marking system on a conveyor 22.
  • the marking system itself generally includes some form of support structure 24 which may or may not be part of the assembly for conveyor 22 and support legs 26.
  • the structure 24 supports, in this case, a CO 2 laser 28, a laser control board 30 and laser power supply and computer 32.
  • the structure 24 also supports an optical beam deflection system 34 on a vertical slide system, with the assembly 34 being adjustable in the vertical direction by such means as lead screw 36, controllably positioned by positioner 38.
  • the positioner 38 may be a manually adjustable positioner, or an electrically controllable positioner such as a gear motor with feedback device, or stepper motor, so as to be automatically repositionable to a prior setting for lines which occasionally undergo a change-over to product packages of different sizes.
  • the optical beam deflection system 34 in this embodiment includes a right angle mirror reflector 44 and a two axis mirror deflection system 40, as well as one or more lenses 42 for focusing the laser beam to a small area spot on a product package in accordance with the positions of the beam deflector and the product package itself relative thereto.
  • the focusing of the laser beam is done at one or more points after mirror 44, with the lens or lens system focusing the beam below the optical beam deflection system. Having the lens or lens system after mirror reflector 44, the collimated laser beam provided by laser 28 will remain collimated until after being bent 90 degrees by the reflector.
  • the vertical position of the optical beam deflection system including mirror 44 relative to the laser 28 itself will not matter, so that the laser may be focused onto product packages of different sizes by simply raising or lowering the optical beam deflection system without requiring movement of the laser itself.
  • the laser may be moved if desired, though in general a simpler assembly normally will result if this is avoided.
  • FIG. 2 a block diagram of the system of Figure 1 may be seen.
  • the system is controlled by a computer 46, which for input/output and programming convenience may be a personal computer with keyboard, floppy disk drive and a temporary or permanent display for displaying such things as status of various parts of the system, the marking currently being commanded and the actual marking being written to the product packages passing thereby.
  • a computer 46 which for input/output and programming convenience may be a personal computer with keyboard, floppy disk drive and a temporary or permanent display for displaying such things as status of various parts of the system, the marking currently being commanded and the actual marking being written to the product packages passing thereby.
  • the computer 46 controls a galvanometer servo card 82.
  • the digital signals from the computer are converted to analog signals in the servo card since the galvanometers are analog devices .
  • the servo card provides analog signals to control the x-axis galvanometer 48 and the y-axis galvanometer 50.
  • a front surface mirror is firmly attached to each galvanometer shaft.
  • the galvanometers controllably rotate the x-axis mirror 52 and y-axis mirror 54 about orthogonal axes to provide x-axis and y-axis deflection of the beam from laser 28 to write on the package 20 passing thereunder.
  • the galvanometers include an x-axis shaft positioning sensor 56 and a y-axis shaft position sensor 58, which in the preferred embodiment are capacitive position sensors. Other types of sensors may also be used if desired, such as by way of example, photoelectric devices .
  • the sensors provide analog position feedback signals of the orthogonal x and y axes to the servo card 82.
  • the servo card utilizes the position sensor signals to form a closed loop servo system for each axis. Additionally, the servo card electronics differentiates the position signals from each position sensor and uses this rotational velocity feedback to critically damp the galvo/mirror systems.
  • the galvanometer servo card 82 could operate in the digital mode with digital galvanometer position feedback instead of converting the computer digital signals to the analog format, though the preferred embodiment uses servo card operating in the analog mode.
  • the analog x-axis shaft position and y-axis shaft position signals from sensors 56 and 58 are also provided to x-axis shaft correlator 60 and y-axis shaft correlator 62, respectively, which correlate (or verify) the measured shaft positions with the commanded shaft positions to be sure that the galvanometer mirrors are tracking the command signals to the degree of accuracy expected. It should also be noted that mirrors are firmly attached to the galvanometer shafts .
  • These x- axis and y-axis shaft correlators provide verification warning outputs 64 and 66, which typically will be used to provide warning lights, a warning buzzer and/or even temporarily shut down the line, and perhaps provide a better indication of the difficulty on the display.
  • the correlators 60 and 62 receive the respective digital galvanometer command signals from computer 46 and the respective analog galvanometer shaft position signals from the shaft position sensors 56 and 58.
  • the analog galvanometer shaft position signals are converted to a digital format since it is easier to correlate digital formatted signals. If a digital based servo system was used then this conversion would not be necessary.
  • correlator or “correlation” are used herein and in the claims in the most general sense, as opposed to a purely mathematical sense, though of course true analog or digital correlators in the mathematical sense could be used if desired.
  • object is to assure that the galvanometer mirrors actually move in accordance with the commands provided thereto, or more specifically, so that the difference at any time between the galvanometer shaft position and the commanded shaft position is less than a predetermined amount. Since the galvanometers are critically damped, their output will lag the input. This time response lag can be compensated for in the logic circuits of the correlators.
  • the variation or error difference between the input command signals to the galvanometers and the output signals from the shaft position sensors can be set in the correlator logic to any desired figure, based on a user ' s requirements .
  • the x-axis shaft position and y-axis shaft position of the galvanometers could be monitored and processed so that not only the commanded shaft positions could be displayed on a display, but the shaft position sensor signals could also be displayed, giving better insight into the actual system problems in the event one or both correlators indicated a servo malfunction.
  • the correlators could be made functional only when the laser is operating, as deflection system operation when the laser is off may intentionally command more rapid motion, causing justifiably greater deviation between commanded position and actual position between writing strokes of the laser.
  • the correlators are shown as separate blocks, and of course may be separate circuits or devices as desired.
  • the galvanometer servo card 42 has available thereon the analog form of the commanded x-axis and y-axis galvanometer positions, as well as the analog outputs of the x-axis shaft position and y-axis shaft position sensors 56 and 58. Accordingly, the analog signals for each axis may be compared by a differential amplifier for each axis, with limit gates on the output of the differential amplifiers triggering whenever the predetermined limits are exceeded. The time lag between the signals must be considered.
  • the warning should be set, though the computer 46 could be used to monitor an automatically resetting warning signal to determine whether the warning was set by a consistent failure, an erratic failure or simply a onetime malfunction.
  • the x and y actual positions could be combined, such as by adding, and compared to a similar combination of the x and y commanded positions to enable the use of a single correlator to provide a single deflection system failure indication.
  • the correlation could verify the laser marking on a character-by-character basis for absolute conditions.
  • the laser 28 is turned on and off by the computer 46 through laser control 68. To be sure that the laser beam is working properly however, it is desirable to sense the laser emission. It is further desirable to provide a measure of the laser intensity so that the laser power may be adjusted accordingly through a laser power control 70 controlled by the computer 46. This may be done in various ways. By way of example, a sensor may be placed at the back end of some types of lasers, as a small but detectable fraction of the emission of the laser will escape through the mirror at the back end of the laser. Alternatively, the right angle deflection mirror 44 (see Figure 1) may be imperfect, with a sensor placed thereunder to detect the small amount of the emission passing through the mirror to the sensor.
  • an emission sensor 72 is placed in the two-axis beam deflection system 40 (see Figure 1) just to the side of the lens or lens system 42, so as to not interfere with the laser beam when actually marking product packages, but to be still within the deflection range of the two axis deflection system so as to allow the deflection of the laser beam to the emission sensor 72. This allows the intensity of the laser emission to be measured by the computer 46.
  • the emission sensor 72 will be placed at a 45 degree angle with respect to the x and y axes, so as to require adequate deflection of both deflection systems in order to illuminate the sensor with the laser beam.
  • two diametrically opposed sensors could be used so that both galvanometers could be exercised to their full range for both laser and galvanometer range testing.
  • the galvanometer position sensors may be placed on the mirrors themselves, rather than on the galvanometer shafts, so that a mirror separation will be immediately detected by the position sensor.
  • the position sensor for the galvanometer feedback loop may be conveniently used for the correlators as shown in Figure 2, though different position sensors could be used for the galvanometer feedback loop and for the correlators.
  • galvanometer shaft position sensors could be used for the servo loops, and mirror position sensors 88 and 90 used for the correlators, as shown in Figure 3. This has the advantages of not only detecting mirror separation or other mirror irregularities, but also of detecting irregularities in either position sensor that may not be detectable if the same position signal is used for both purposes.
  • laser operation and intensity may be checked by the computer between marking adjacent product packages if the conveyor speed is not too fast.
  • the laser beam might be deflected to the emission sensor 72 on a less frequent basis, such as once per day.
  • some appropriate warning system 74 controlled by the computer is provided in response to a failure of the laser or a drift downward in the laser intensity to a value approaching the limits of the computer to automatically control the laser intensity.
  • the line might be automatically shut down, though on a mere indication of the laser approaching a need for service, operation could continue with the computer providing status information for timely servicing or replacement of the laser.
  • the deflection of the laser beam to the emission sensor or sensors 72 is an extraordinary deflection, it might be desirable to allow greater deviation between the commanded beam position and the actual galvanometer position. This, of course, may be readily controlled by computer 46 if desired. Further, it should be noted that the laser beam will not be well focused on the emission sensor 72, an actual advantage in avoiding damage to the sensor.
  • the marking of product packages under the laser beam occurs as the product packages are moving at a relatively constant speed for each package, though that speed may change from time to time over the passage of a number of packages, including but not limited occasions of line startup and shutdown.
  • a conveyor encoder 78 is used to compensate for changes in package velocity.
  • Deflection of a laser beam to write on either a stationary or a moving object is a well known technology, and accordingly will not be described in detail herein.
  • the writing should preferably proceed on the package in the other direction, as this minimizes the required beam deflection along the axis of motion, and generally allows the maximum package speed for a particular amount of writing.
  • Figure 4 illustrates one embodiment of a deflection system of the present invention.
  • the deflection system is a two axis mirror deflection system and includes a x-axis mirror 52, a x-axis galvanometer 48 that controls the x-axis mirror 52, a y- axis mirror 54, a y-axis galvanometer 50 that controls the y-axis mirror 54, and a lens system 42 that positions and focuses a laser beam 84 onto a moving product 20 for marking the product surface 86.
  • Figure 4 shows the laser beam 84 being deflected by the x-axis mirror 52 first, it is contemplated that the laser beam can alternatively be deflected by the y-axis mirror 54 first.
  • the deflection system further includes a laser beam emission sensor 72 placed at a test point to the side of the lens system 42.
  • the laser beam emission sensor 72 is placed within the deflection range of the deflection system such that the laser beam 84 can be deflected onto the test point (preferably using substantial deflections of both the x-axis and y-axis mirrors) in order to verify that the electronics (e.g. , the servo card 82 of Figure 2) and/or the deflection system is working properly and to measure the intensity of the laser beam.
  • more than one emission sensor may be used such as x- and y-axis mirror position (or emission) sensors 88 and 90 of Figure 5.
  • the galvanometer zero positions and scale factor may be determined and compensated for under software control without accurate mechanical alignment or scale factor trimming.
  • the x-axis and y-axis galvanometer emission sensors 88 and 90 can be used to determine which (or both) galvanometers are malfunctioning .
  • the laser beam emission sensor 72 does not receive the appropriate verification, i.e., when the laser beam is not detected or the laser beam's intensity is not within a predetermined range, the laser beam emission sensor 72 causes an appropriate warning system 74 to be provided. If the laser beam's intensity appears to deviate from a predetermined control point, the laser beam power control 70 can be automatically adjusted until the laser beam's intensity is within the predetermined range. Thus, an appropriate warning will typically be provided if the laser beam's intensity cannot be adjusted to within the predetermined range.
  • Figure 6 illustrates a second embodiment of a deflection system of the present invention.
  • the deflection system includes a mirror 98 for deflecting the laser beam 84 in one axis, a galvanometer 100 that controls the mirror 98, and a rotating polygon 92 having a plurality of mirrored faces 94 for deflecting the laser beam 84 in the other axis.
  • the laser beam 84 is switched in synchronism with the rotating mirrors of the polygon 92.
  • the rotating polygon 92 may be used as a x-axis or y-axis deflector.
  • Figure 7 illustrates a third embodiment of a deflection system of the present invention.
  • the deflection system includes a mirror 98 for deflecting the laser beam 84 in one axis, a galvanometer 100 that controls the mirror 98, and an acousto-optic deviator 96 (e.g., Germanium Crystal) that deflects the laser beam 84 in the other axis.
  • the acousto-optic deviator 96 may be used as a x-axis or y- axis deflector.
  • the acousto-optic deviator 96 deflects the laser beam in an axis that defines the height of characters that are marked on products (i.e., the axis that requires a smaller range of deflection) .
  • the net result of the invention herein described is that substantially all likely failures in laser marking systems may be detected, including a failure of the laser itself, a failure in the laser power control, a failure in either axis of the beam deflector, including not only failures of the galvanometers, but also even separation of the galvanometer mirrors actually deflecting the beam.
  • the warning and/or action taken upon detection of an abnormal operating condition will depend upon the nature of the abnormality, and in some cases, the nature of the products being marked. If desired, of course, other failure sensing devices or circuits may be included with the present invention.
  • computer 46 itself might fail, providing a constant output on the bus and thus, a non-changing input to the galvanometer servo card 42 and to the correlator.
  • the non-changing position of the galvanometer would of course not trigger the correlator.
  • other circuits may readily detect such a condition, such as by way of example, a simple detection of a minimum average AC level on either the analog galvanometer command signals and/or the analog galvanometer shaft position outputs, which circuits preferably would be separate from computer 46 and separately powered.

Abstract

Système de marquage laser intégrant la vérification de la déflexion du faisceau et servant à porter sur des produits et sur leurs emballages des informations telles que des numéros de lots et des codes de date. Ce système de codage laser comprend un laser commandé par ordinateur, et un système commandé par ordinateur de déflexion du faisceau laser, servant à porter directement une inscription sur les emballages des produits ou sur les produits eux-mêmes par pyrogravure sur ces derniers ou à travers un revêtement dont ils sont pourvus. Ce système de déflexion du faisceau laser comporte des capteurs de position produisant des sorties indiquant la position actuelle du faisceau. Ces sorties sont mises en corrélation avec des signaux de commande du système de déflexion afin de détecter toutes déviations anormales entre les positions commandées et les positions réelles, ce qui indique une défectuosité du système de déflexion. Un capteur sert à détecter l'intensité laser afin de vérifier le fonctionnement correct du laser et de pouvoir effectuer une mesure automatique de la commande de puissance de l'intensité du faisceau laser par déflexion du faisceau vers une position hors-limite de marquage du produit, et, de plus, à vérifier le fonctionnement du système de déflexion, ainsi que celui du laser, afin de produire un signal servant à commander la puissance du laser. L'invention concerne différentes caractéristiques, telles que la possibilité de vérifier l'opération tout au long du marquage sur des emballages en déplacement, et, également, d'autres modes de réalisation.
PCT/US1998/022355 1997-10-24 1998-10-22 Systeme de marquage laser integrant la verification de la deflexion du faisceau et une commande automatique de l'intensite du faisceau WO1999021722A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11135/99A AU1113599A (en) 1997-10-24 1998-10-22 Laser marking system with beam deflector verification and automatic beam intensity control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95725197A 1997-10-24 1997-10-24
US08/957,251 1997-10-24

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Publication Number Publication Date
WO1999021722A2 true WO1999021722A2 (fr) 1999-05-06
WO1999021722A3 WO1999021722A3 (fr) 1999-07-15

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CN104943400A (zh) * 2015-06-03 2015-09-30 张家港市旭华激光有限公司 一种产品商标用激光打标系统
DE10362053B4 (de) * 2002-04-10 2018-01-18 Hewlett-Packard Development Company, L.P. Bilderzeugungsvorrichtung und Drucksystem zum lasergesteuerten Tintenstrahldrucken
CN108909195A (zh) * 2018-06-01 2018-11-30 深圳市容大感光科技股份有限公司 一种连续打印和光固化的方法和设备
CN109909620A (zh) * 2019-04-10 2019-06-21 东莞松山智能机器人有限公司 自动镭射雕刻设备
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US6614023B2 (en) 2000-01-31 2003-09-02 Focke & Co. (Gmbh & Co.) Process and apparatus for providing codings on (cigarette) packs
EP1122171A1 (fr) 2000-01-31 2001-08-08 Focke & Co. (GmbH & Co.) Procédé et dispositif pour appliquer un code sur des paquets (de cigarettes)
WO2001081039A1 (fr) 2000-04-25 2001-11-01 Disetronic Licensing Ag Dispositif pour l"inscription d"informations sur des objets a l"aide de faisceaux laser
DE10362053B4 (de) * 2002-04-10 2018-01-18 Hewlett-Packard Development Company, L.P. Bilderzeugungsvorrichtung und Drucksystem zum lasergesteuerten Tintenstrahldrucken
EP1447327A3 (fr) * 2003-02-15 2006-02-01 Arzneimittel GmbH Apotheker Vetter & Co. Ravensburg Procédé pour identifier et/ou contrôler des seringues médicales
ITTV20090112A1 (it) * 2009-05-27 2010-11-28 Errevi S R L Apparecchiatura per la stampa digitale su manufatti.
EP2255971A1 (fr) * 2009-05-27 2010-12-01 Errevi S.R.L. Appareil et procédé d'impression numérique sur des conteneurs en polystyrène fritté et expansé
WO2011147485A1 (fr) * 2010-05-27 2011-12-01 Errevi S.R.L. Appareil permettant une impression numérique sur des articles, tels que des récipients, réalisés en polystyrène expansé fritté
JP2012148317A (ja) * 2011-01-19 2012-08-09 Keyence Corp レーザー加工装置
US8827409B2 (en) 2012-08-31 2014-09-09 Seiko Epson Corporation Recording apparatus
EP2703175A1 (fr) * 2012-08-31 2014-03-05 Seiko Epson Corporation Appareil d'enregistrement
GB2505883A (en) * 2012-09-12 2014-03-19 Linx Printing Tech Inkjet print head and cap
GB2507877A (en) * 2012-09-12 2014-05-14 Linx Printing Tech Ink jet print head having ramp portion and product sensors
GB2505883B (en) * 2012-09-12 2014-10-08 Linx Printing Tech Ink jet print head and cap
GB2507877B (en) * 2012-09-12 2014-10-08 Linx Printing Tech Ink jet print head
US9333753B2 (en) 2012-09-12 2016-05-10 Linx Printing Technologies Ltd. Ink jet print head and cap
CN102896908A (zh) * 2012-10-26 2013-01-30 苏州劲翔电子科技有限公司 激光打标机
CN104943400A (zh) * 2015-06-03 2015-09-30 张家港市旭华激光有限公司 一种产品商标用激光打标系统
CN108909195A (zh) * 2018-06-01 2018-11-30 深圳市容大感光科技股份有限公司 一种连续打印和光固化的方法和设备
CN109909620A (zh) * 2019-04-10 2019-06-21 东莞松山智能机器人有限公司 自动镭射雕刻设备
CN113172344A (zh) * 2021-04-26 2021-07-27 北京沃佳玛科技有限公司 一种检测激光打码机漏打的装置

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