• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method for engraving, marking and / or inscribing a workpiece (7) with a laser plotter (2), in which in a housing (3) of the laser plotter (2) one but preferably several, in particular two, beam sources (4) in Form of lasers (5,6) are used, which preferably act alternately on the workpiece to be machined (7). The workpiece (7) is deposited in a defined manner on a processing table (9) and a laser beam (10) emitted by the beam source (4) is transmitted via deflection elements (11) to at least one focusing unit (12), from which the laser beam (10) Directed workpiece (7) deflected and focused for processing. The control, in particular the position control of the workpiece (7) to the laser beam (10) via a in a control unit (13) running software, so that the workpiece (7) is processed line by line by adjusting a carriage (21). From the control unit (13) is a quality of the engraving adapted flow control, in which a defined ratio of a spot size (23) to line spacing and an engraving sequence (1) of the lines to be processed (22) determined or performed and the focusing unit (12) on the carriage (21) is driven according to the defined parameters of the sequence control.
    公开号:AT519177A1
    申请号:T50902/2016
    申请日:2016-10-06
    公开日:2018-04-15
    发明作者:
    申请人:Trotec Laser Gmbh；
    IPC主号:
    专利说明:

    (57) The invention describes a method for engraving, marking and / or labeling a workpiece (7) with a laser plotter (2), in which in a housing (3) of the laser plotter (2) one preferably but several, in particular two, beam sources ( 4) are used in the form of lasers (5, 6), which preferably act alternately on the workpiece (7) to be machined. The workpiece (7) is placed in a defined manner on a processing table (9) and a laser beam (10) emitted by the beam source (4) is sent via deflection elements (11) to at least one focusing unit (12), of which the laser beam (10) Is deflected towards the workpiece (7) and focused for machining. The control, in particular the position control of the workpiece (7) relative to the laser beam (10) takes place via software running in a control unit (13), so that the workpiece (7) is processed line by line by adjusting a slide (21). The control unit (13) determines a sequence control adapted to the quality of the engraving, in which a defined ratio of a spot size (23) to line spacing and an engraving sequence (1) of the lines (22) to be processed are determined or
    carried out and the focusing unit (12) on the carriage (21) is controlled according to the defined parameters of the sequence control.
    DVR 0078018
    Summary :
    The invention relates to a method for engraving, marking and / or marking a workpiece (7) with a laser plotter (2), in which one, preferably two, in particular two, beam sources (4) in a housing (3) of the laser plotter (2) Form of lasers (5,6) are used, which preferably act alternately on the workpiece (7) to be machined. The workpiece (7) is placed in a defined manner on a processing table (9) and a laser beam (10) emitted by the beam source (4) is sent via deflection elements (11) to at least one focusing unit (12), of which the laser beam (10) Is deflected towards the workpiece (7) and focused for machining. The control, in particular the position control of the workpiece (7) relative to the laser beam (10) takes place via software running in a control unit (13), so that the workpiece (7) is processed line by line by adjusting a slide (21). The control unit (13) determines a sequence control that is adapted to the quality of the engraving, in which a defined ratio of a spot size (23) to line spacing and an engraving sequence (1) of the lines (22) to be processed are determined and carried out, and the focusing unit (12) on the slide (21) is controlled according to the defined parameters of the sequence control.
    Fig. 1 / ^ ß 'quality
    Process for engraving, marking and / or labeling a workpiece with a laser plotter and laser plotter therefor
    The invention relates to a method for engraving, marking and / or inscribing a workpiece with a laser plotter and a laser plotter, in which one but preferably several, in particular two, beam sources in the form of lasers are used in a housing of the laser plotter, preferably alternately towards the act on the workpiece, the workpiece being placed on a processing table in a defined manner and a laser beam emitted by the beam source is sent via deflection elements to at least one focusing unit, from which the laser beam is deflected in the direction of the workpiece and focused for processing, the control, in particular the position control of the workpiece to the laser beam via software running in a control unit, so that the workpiece is processed line by line by adjusting a slide, as described in claims 1 and 8.
    With laser plotters, the laser light is sharply focused using a focusing lens. The focus of the laser beam is an extremely high power density, with which materials can be melted or evaporated, engraved, marked or labeled. The processing, in particular the engraving, is carried out line by line, the first line preferably being processed from left to right and the next following line from right to left and then again the next line from left to right, etc.
    Problems arise with the laser plotter, which is part of the prior art, with mechanical strips on the engraved image (see FIG. 5). Certain combinations of material, laser source, in particular CO2 laser or YAG laser, set power, lens used, etc. can lead to irregular vertical stripes, these problems occurring in particular in the case of flat engravings. Particular problems arise, for example, when using a fiber laser for aluminum engraving, a fiber laser for tempering steel or even with a CO2 laser when engraving acrylic. The cause of the streaking is that the actual engraving swings around the ideal line, which cannot be prevented due to the mechanical construction of the slide due to the mechanical play, as was illustrated in FIGS. 1 to 6.
    / 23'q quality
    The object of the invention is to provide a method and a laser plotter in which the formation of stripes when engraving flat objects is prevented as far as possible.
    The object is achieved by the invention.
    The object of the invention is achieved by a method for engraving, marking and / or labeling a workpiece () with a laser plotter, in which the control unit adapts a sequence control adapted to the quality of the engraving, in which a defined spot size to line spacing and an engraving sequence of the lines to be processed is determined or ascertained, is carried out and the focusing unit on the carriage is controlled in accordance with the defined parameters of the sequence control. It is advantageous here that in the case of a high-quality engraving, the control unit determines and defines a special sequence control in which the often occurring slight streaking on the engraving image is prevented, the processing time being increased only insignificantly.
    This is achieved because, in the process carried out, it is avoided as far as possible that two lines running in parallel are processed one after the other, i.e. the fewer such line-by-line processing operations occur in an engraved image, the higher the quality of the engraved image, since no streaking by any or few overlaps and free spaces are created for the lines.
    Another advantage is that the user can set a selection of the quality, for example standard, improved quality, highest quality, so that the control unit selects appropriate processes. For example, when selecting Standard, a bi-directional engraving is selected, whereas blocks are defined for improved quality and two adjacent blocks are always processed alternately, whereas blocks are defined for the highest quality, with all blocks alternating with one line at a time or pseudorandom blocks are processed.
    The measures in which the engraving process takes place in blocks unidirectionally are advantageous, with at least two blocks being processed alternately in each case. Thereby / 23'qua li ty is achieved that thus in turn one taking place in each direction engraving is performed by the alternate block processing and hence the processing time approximately corresponds to the standard line-sequential bi-directional engraving sequence, which means that in the inventive solution, the engraving direction changes block by block so that there are never two lines in a block with different engraving directions.
    The measures in which each block is formed from at least two, in particular four to ten, lines are advantageous. This ensures that, depending on the size of the graphic to be produced, the control unit can determine the optimal block size, in particular the number of lines, in order to achieve the fastest possible engraving with the best possible quality
    However, the measures are also advantageous in which, after the at least two blocks have been completely processed by the control unit, the next blocks are processed, the next blocks or pseudo-random blocks being selected for this purpose. This ensures that a complete engraving is guaranteed, whereby the selection of the next blocks can influence the heat balance and / or the quality of the engraving.
    However, the measures in which the lines within the blocks are processed from top to bottom or from bottom to top or pseudorandomly are also advantageous. This ensures that the quality can be increased by selecting the appropriate procedure, since appropriate procedures can be defined depending on the material to be engraved. In this way, the heat input to the material can be controlled to a certain extent, since the heating is less with larger distances between the lines in between.
    The measures in which a line is processed from left to right or right to left or with a changing engraving direction are advantageous. This ensures that the quality or the material can be taken into account optimally.
    However, the measures in which all the defined blocks are processed from top to bottom are also advantageous, for example first every 1st line of every / 23 'quality
    Block are processed, on which the 2nd line of each block etc. is engraved. This ensures that the same slide adjustment is always carried out between the blocks, so that the slide adjustment speed can be increased if necessary.
    Furthermore, the object of the invention is also achieved by a laser plotter in which the control unit is designed to carry out the method according to one or more of claims 1 to 11. It is advantageous here that the method according to the invention can be implemented using a commercially available laser plotter, so that the influences on banding can be prevented.
    Finally, a facility in which
    Also of advantage is a design in which the control device is designed to be a sequential control system adapted to the quality of the engraving, in which a defined ratio of spot size to line spacing and an engraving sequence of the lines to be processed can be determined or ascertained, and the focusing unit on the carriage is designed accordingly defined parameters of the sequence control can be controlled. Characterized in that a special engraving process can be carried out so that overlapping and free spaces are reduced or avoided by the oscillating line engraving.
    Finally, an embodiment in which the control device is designed to process blocks is also advantageous. It is thereby achieved that only one engraving direction is made possible within a block, but the workpiece can be machined, in particular engraved, in both engraving directions.
    The invention is subsequently described in the form of exemplary embodiments, it being pointed out that the invention is not limited to the exemplary embodiments and solutions illustrated and described.
    Show it:
    1 shows a diagrammatic representation of a laser plotter, in a simplified, schematic representation;
    2 shows a vibration of an engraving sequence of a line from left to right, in a simplified, schematic representation;
    / Li ty 23'qua
    3 shows an oscillation of an engraving sequence of a line from right to left, in a simplified, schematic representation;
    4 shows a summary of a line-by-line engraving from left to right and right to left from the prior art, in a simplified schematic representation;
    Fig. 5 is an image graphic with an engraving sequence from the prior art
    Representation of the stripes;
    Fig. 6 is a microscopic enlargement of the engraving of FIG. 5 for
    Illustration of the overlaps and free spaces occurring during the engraving process from the prior art;
    7 shows an engraving sequence according to the invention to avoid the strips with block-wise sequence control;
    Fig. 8 shows another embodiment of a block by block according to the invention
    Engraving sequence with pseudo-random order of the blocks and lines.
    In the introduction, it should be noted that in the different embodiments, the same parts are provided with the same reference numerals or the same component names, and the disclosures contained in the entire description can be applied analogously to the same parts with the same reference numerals or the same component names. The location information selected in the description, e.g. above, below, laterally, etc. related to the figure described and are to be transferred to the new position in the event of a change of position. Individual features or combinations of features from the exemplary embodiments shown and described can also represent independent inventive solutions.
    1 to 4 show the engraving process 1 from the prior art, in which the problems of streaking in a laser plotter 2 are to be illustrated. 1 shows a laser plotter 2 known from the prior art, in which at least one, in particular two, radiation sources 4 in the form of lasers 5, 6 are arranged and operated in a housing 3. The lasers 5 and 6 preferably act alternately on the workpiece 7 to be machined, the workpiece 7 being positioned in a machining region 8 of the laser plotter 2, in particular on a machining table 9. A emitted from the radiation source 4 laser beam 10 is at least sent via deflection elements 11 to a movable focusing unit 12, from which the laser beam is deflected towards the workpiece 7 10 and focused to the processing / 23'q is uality. The control, in particular the position control of the laser beam 10 relative to the workpiece 7, takes place via software running in a control unit 13, a processing job 16 with a graphic 17 being carried out on an external component 14, in particular on a display element 15 in the form of a computer 15 or a control device and / or a text 18 is created and / or loaded, which is transferred to the control unit 13 of the laser plotter 2 via a data connection 19, which converts the transferred data from a stored database 20, in particular the processing job 16 with the graphics 17 and / or the text 18, for controlling the individual elements of the laser plotter 2.
    During an engraving process on the workpiece 7, the focusing unit 12 is moved along a carriage 21, so that the laser beam generates a line 22 on the workpiece 7 with a predetermined spot size 23 of the laser 4 or 5, as is shown schematically in FIGS. 2 and 3. Due to the mechanical structure and thus the associated mechanical play, the laser beam 10 or the spot point oscillates around the straight line. The vibration from left to right, according to FIG. 2, behaves differently than the vibration from right to left, according to FIG. 2, so that there is a repeating pattern of overlaps 24 and free spaces 25 in the engraving sequence 1, according to FIG. 3 5, which are perceived as strips 26 in the engraved image, according to FIG. According to FIG. 6, a microscopic enlargement of the image engraving of FIG. 5 is shown, from which the laser engraving, which converge in certain areas, can be seen with the dark lines. As can be seen in the illustrations, in particular in FIGS. 4 to 6, there is a repeating pattern of overlaps 24 and free spaces 25, which are perceived as strips 26.
    Another cause is that a laser source expands due to temperature fluctuations, as a result of which the emitted laser power changes slightly, this change not being monotonous, but rather showing an oscillation behavior. In the case of engravings that take a long time and at the same time have large, single-color areas, these fluctuations can become visible as strips 26. This is particularly the case if the processed material, i.e. workpiece 7, behaves non-linearly in the selected power range, i.e. small fluctuations in the laser power lead to large fluctuations in the result on the material.
    / ^ ß 'quality
    A simple method for avoiding stripes is to carry out a unidirectional engraving, so that the vibration behavior line 22 for line 22 fits together in the same way and thus no overlaps 24 or free spaces 25 arise, that is to say that the laser plotter 2 always only in one direction, for example from left to right, the laser beam 10 is activated to form the engraving and when reset from right to left the laser beam 10 is deactivated, whereupon an engraving can be carried out from left to right. For the sake of order, it is pointed out that this can of course also be reversed, that is to say the laser beam is activated when the focus unit 12 moves from right to left and is deactivated from left to right.
    However, this engraving method has a major disadvantage, namely that the time for laser engraving is doubled or almost doubled, since it is possible that different adjustment speeds can be used, ie that the engraving speed is very slow, but the reset can be done very quickly ,
    According to the invention, in order to avoid the strips 26, it is now provided that, as is known from the engraving process 1 of the prior art, the lines 22 are processed in a strict order, namely line 22 line 22 for line 22, but instead lines 22 are arranged according to the invention desired correction or quality processed in alternative orders.
    Before the start of the engraving process 1, the control unit 13 carries out an analysis of the graphic 17 and / or text 18 and defines corresponding parameters, such as spot size 23, engraving speed, etc. At the same time, the control unit divides the engraving area, ie the graphic 17 and / or text 18, into blocks 27, each block containing a specific number of lines 22, as is shown schematically in FIG. 7. In the exemplary embodiment shown, the graphic 17 shown in FIG. 5 was therefore divided into a plurality of blocks 27, only six blocks 27 being shown for illustration, each block 27 containing four lines 22 in each case. For the sake of order, it is mentioned that, of course, more or fewer lines 22 than the illustrated four lines 22 can be included. As engraving sequence 1 of FIG. 7 can be seen, always engraved in the blocks 27 in one direction only, which means that the first block 27 engraved from left to right / uality is 23'q, whereas the second block 27 from right to left etc. is engraved. The engraving starts at the starting point 28, so that the carriage 21 with the focusing unit 12 is positioned accordingly, whereupon the focusing unit 12 moves along the carriage 21, that is to say from left to right, with the carriage 21 stationary, to the end of line 22 with the laser beam 10 activated and thus the first line 22 was generated. Subsequently, the carriage 21 is now adjusted to the first line 22 of the second block 27, as is shown schematically outside the engraving process 1 by adjustment lines 29 for the carriage 21. After the first line 22 has been produced in different engraving directions in the first two blocks 27, the carriage 21 is positioned with the focusing unit 12 on the second line 22 of the first block 27 and the process begins again for the second, third and fourth lines 22 etc.
    If the last line 22 is processed in the second block 27, a block change 30 now takes place, as is shown schematically with a block change line, so that the next two blocks 27, namely the third and fourth block 27, are processed in accordance with the previously described sequence , It should be mentioned here that the next block 27 is not always selected when changing the block 30, but that, for example, the next two blocks 27 are omitted and the engraving continues with the sixth and seventh blocks 27 so that the material of the workpiece 7 to be engraved cool can. The omitted blocks 27 are then processed or at a corresponding point in time, so that all blocks 27 have been processed at the end of the engraving.
    In this engraving process 1 shown in FIG. 7, the engraving process 1 is carried out unidirectionally in blocks, with two blocks 27 being processed alternately. The great advantage of this engraving sequence 1 is that the engraving is again carried out in every direction, that is to say from left to right and from right to left, so that only a minimal time extension of the engraving, which is caused by the larger adjustment of the slide 21, takes place, but no line-by-line engraving sequence 1, as is known from the prior art, is carried out. As can now be seen in the engraving sequence 1 according to the invention, the overlaps 24 and free spaces 25 leading to the strips 26 are avoided by the block-wise processing, so that the strips 26 are no longer present in such an engraving.
    / 23 quality
    In the case of block-by-block processing, it is also possible for all defined blocks 27 to be processed from top to bottom or vice versa, for example each first
    1st line 22 of each block 27 are processed, after which the 2nd line 22 of each block 27 etc. is engraved. It is also possible for the blocks 27 to be selected and processed pseudorandomly (not shown). It is of course also possible here for the processing of the lines 22 within the blocks 27 to take place from top to bottom or from bottom to top or in a pseudo-random manner.
    It can thus be said that according to the invention it is provided that the control unit 13 executes a sequence control that is adapted to the quality of the engraving, in which a defined ratio of a spot size 23 to line spacing and an engraving sequence 1 of the lines 22 to be processed is determined or ascertained and the focusing unit 12 on the carriage 21 is controlled according to the defined parameters of the sequence control, that is to say that on the basis of the size of the spot size 23 and a set or automatically calculated line spacing, the control unit 13 can determine a block size and thus the number of blocks 27 required predefined graphic 17 or text 18 can determine. If, for example, a different ratio of the spot size 23 or pixel size is used for a higher engraving quality, the line spacing between the lines 22 is reduced, so that the size of the block 27 is changed and therefore more or fewer blocks 27 are required for the engraving process 1. It is possible that the user can set the spot size 23 and, if appropriate, the line spacing via a parameter, or that, based on defined quality settings, for example standard, improved quality, high quality, corresponding parameters for the spot size 23 and / or line spacing are stored in a memory are loaded after selection and used for the analysis.
    8 shows a pseudo-random process for processing the lines 22 in the blocks 27, the main advantage being that in this process two lines 22 lying next to one another are never processed in succession. According to the starting point 28, the second line 22 of the first block 27 is engraved from left to right, whereupon the fourth line 22 of the second block 27 is engraved from right to left. Then the fourth line 22 of the first block 27, the third line 22 of the second block 27, third line 22 of the first block, second line 22 of the second block and from there onto the first line 22 of the first block 22 are engraved, followed by last line 22 the first line 22 of the second block 27 is engraved. After all / 23i uality
    Lines 22 have been processed, the slide 21 according to the illustrated block change 30 is in turn moved to the second line 22 of the next block pair to be processed, in this pseudorandom sequence to the fifth block 27, so that blocks 27 five and six are now processed. The sixth block 26 is then switched to the block pair of blocks 27 three and four, so that the end position 31 in the first line 22 of the fourth block 27 is reached.
    Four to six lines 22 per block 27 have preferably been found in the most varied of experiments, in which the best quality and the fastest possible engraving time are achieved. Thus, by specifying the lines 22 in a block 27, which the user can preferably set as a parameter in the control unit 13, a simple analysis or calculation of the number of blocks 27 required for a graphic 17 and / or text 18 to be processed can be carried out , It has also been found to be particularly advantageous that pairs of two combined together produce very good and high-quality engravings.
    To avoid the strips 26, it is also possible for a pseudo-random line selection to be carried out instead of the blocks or within the blocks, thereby ensuring that lines which are not consecutive are processed one after the other. In particular, the engraving direction to the left / right is to be taken into account, thereby avoiding the formation of unidirectional overlaps 24 and / or free spaces 25 of different sizes, which can be noticed as horizontal, irregular stripes.
    A procedure is also possible in which, for example, all even lines 22 are processed first and then all odd lines 22. The appearance of a stripe may depend on whether the line 22 above and below was engraved before or after, particularly due to thermal effects, etc. If e.g. If all lines 22 of a block 27 are engraved from top to bottom, each line 22 has a temporal predecessor, and all lines 22 except the last line 22 of block 27 have a temporal successor. This can lead to horizontal, narrow lines or strips 26, triggered by the special position of the last line 22 of each block 27.
    Experiments have shown that unidirectional engraving ensures an optimal reduction of vertical strips 26. Vertical strips 26 (not shown) / 23 uality are reduced by mechanical vibrations by unidirectional or block-wise unidirectional engraving. In principle, these strips 26 can still be visible in the points of contact of the blocks 27, but the strip intensity also decreases with increasing block size.
    Blocks 27 are zones of successive lines 22 with preferably the same engraving direction, the block size being> = 2 lines 22. It is possible that the blocks 27 of different sizes e.g. Adaptation of the number of lines to the job or the engraving, reduction of periodicity. Periodicity in combination with other periodic properties of the device or laser plotter 2, such as belt division, encoder resolution, motor torques, etc., can lead to moiré effects, with moiré effects typically being broad, horizontal, periodic strips 27.
    As already mentioned, it is also possible that the order of the blocks 27 can be changed. For example, all of them can be done in sequence (smooth progress, easy to understand for the user when watching) or that smaller groups can be completed in advance so that ongoing quality control is possible, e.g. Check the set laser power. A pseudo-random distribution is also possible, which preferably brings advantages with CO2 laser tubes. CO2 laser tubes can show a warm-up behavior that causes the laser power to fluctuate around an average. The oscillation period is in the range of minutes. In the case of engravings that take a very long time, these fluctuations can appear as horizontal, unevenly wide stripes, which is greatly reduced by the pseudo-random distribution.
    The order within block 27 can also be changed so that, for example, from top to bottom, i.e. From each block, the first, then the second, ... line 22 is engraved or all even, then all odd or pseudo-random selections. The appearance of a particular line 22 may depend on whether the line 22 above and below was engraved before or after. If e.g. If all lines of a block are engraved from top to bottom, each line has a temporal predecessor and all lines except the last one have a temporal successor. This can lead to horizontal, narrow lines, triggered by the (periodic) special position of the last line 22 of each block, which can be avoided.
    / 23 ' quality
    It is also possible that multiple engraving of a line 22 of the block 26 is carried out, the first processed line 22 (not necessarily the top line 22) being repeated again at a later point in time (in particular as the last line 22 within the block 26) processed. Both the first and the (temporally) last line 22 of a block 26 have a special position; this periodicity can be expressed in narrow, horizontal lines. The advantage here is that the locally identical line 22 is processed both times with the same parameters (speed, direction, ...), and therefore there are no artifacts within line 22 (e.g. overlap due to backlash). This is accompanied by a slight loss of time.
    However, a procedure is also possible in which overlapping blocks 26 are engraved,
    i.e. that the engraving of a single line 22 takes place both from the left and from the right, only selected parts of the line being processed in each case. The stripe intensity is further reduced since possible stripes 26 no longer occur between n-block 27 and n + 1 block 27, but between n-block 27 and the divided line 22, and between the divided line 22 and n + block 27, that is distributed and therefore less visible over an area twice as large. The loss of time is less, but the quality can be a little worse than.
    It is essential in the solution according to the invention that the control unit 13 determines or executes a sequence control adapted to the quality of the engraving, in which a defined spot size 23 for line spacing and an engraving sequence 1, which can run differently as described above, of the lines 22 to be processed and the focusing unit 12 on the slide 21 is controlled in accordance with the defined parameters of the sequence control, so that the streaking on the engraved image is avoided or greatly reduced.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the engraving sequence 1 and its components or its components, some have been shown to scale and / or enlarged and / or reduced and, above all, only shown schematically.
    / 23 quality
    Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also form independent, inventive or inventive solutions.
    / 23 quality
    P a t e n t a n s r u c h e:
    1. A method for engraving, marking and / or inscribing a workpiece (7) with a laser plotter (2), in which in a housing (3) of the laser plotter (2) one preferably, but in particular two, beam sources (4) in the form of Lasers (5,6) are used, which preferably act alternately on the workpiece (7) to be machined, the workpiece (7) being placed on a machining table (9) in a defined manner and a laser beam (10) emitted by the beam source (4) Via deflection elements (11) is sent to at least one focusing unit (12), from which the laser beam (10) is deflected in the direction of the workpiece (7) and focused for processing, the control, in particular the position control of the workpiece (7) relative to the laser beam ( 10) via software running in a control unit (13), so that the workpiece (7) is processed line by line by adjusting a slide (21), characterized in that the control unit (13) has a de r Quality of the engraving-adapted sequence control, in which a defined ratio of a spot size (23) to line spacing and an engraving sequence (1) of the lines (22) to be processed are determined or carried out and the focusing unit (12) on the carriage (21) according to the defined one Parameters of the sequence control is controlled.
    2. The method according to claim 1, characterized in that the engraving process (1) takes place in blocks unidirectionally, with at least two blocks (27) being processed alternately.
    3. The method according to claim 1 or 2, characterized in that each block (27) from at least two, in particular four to ten lines (22) is formed.
    4. The method according to any one of the preceding claims 1 to 3, characterized in that after the at least two blocks (27) have been completely processed by the control unit (13), the next blocks (27) are processed, the next blocks (27) or pseudorandom blocks (27) can be selected.
    / 23 quality
    5. The method according to any one of the preceding claims 1 to 4, characterized in that the processing of the lines (22) within the blocks (27) takes place from top to bottom or from bottom to top or pseudorandomly.
    6. The method according to any one of the preceding claims 1 to 5, characterized in that the processing of a line (22) from left to right or right to left or with alternating engraving direction.
    7. The method according to any one of the preceding claims 1 to 6, characterized in that all defined blocks (27) are processed from top to bottom, for example first every first line (22) of each block (27) are processed, followed by the second Line (22) of each block (27) etc. is engraved.
    8. Laser plotter (2) with a processing area (8) for positioning a workpiece (7), at least one but preferably two radiation sources (4) in the form of lasers (5, 6) with corresponding deflection elements (11) and a preferably movable focusing unit ( 12) and a control unit (13) for controlling the individual elements, in particular a slide (21) with a focusing unit (12) arranged movably thereon, characterized in that the control unit (13) for performing the method according to one or more of the claims 1 to 11 is formed.
    9. Laser plotter (2) according to claim 8, characterized in that the control device (13) for a sequence control adapted to the quality of the engraving, in which a defined ratio of a spot size (23) to line spacing and an engraving sequence (1) of the lines to be processed ( 22) can be determined or ascertained, is formed and the focusing unit (12) on the carriage (21) can be controlled in accordance with the defined parameters of the sequence control.
    10. Laser plotter (1) according to claim 8 or 9, characterized in that the control device (12) is designed for processing blocks (27).
    / 23 quality
    / 23
    C l
    η
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    Figure 6
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    19/23 Austrian
    Patent Office
    Search report for A 50902/2016
    Classification of the subject of the application according to IPC:B23K 26/36 (2014.01); B44C 1/22 (2006.01) Classification of the application according to CPC:B23K 26/36 (2017.08); B44C 1/228 (2013.01) Researched test substance (classification):B23K, B44C Consulted online database:wpi, epodoc, full text databases This search report was prepared for claims 1-10 filed on. Category*) Title of the publication:Country code, publication number, document type (applicant), publication date, text or figure if necessary Concerningclaim AA US 2016256959 Al (THOMAS ET AL.) September 8, 2016 (September 8, 2016)Summary; Fig. 6-7DE 2937429 Al (CROSFIELD ELECTRONICS LTD) April 3, 1980 (April 3, 1980)Claim 1; Fig. 3-12 1-101-10 Date of completion of the research: ς t 1 1 examiner:02.08.2017 bene 1 of 1 PAVDI Christian *> Categories of the listed documents: A publication that defines the general state of the art.X Publication of special importance: the application P document that is of importance (categories X or Y), but afterobject cannot be published as new or published on the priority date of the registration solely due to this publication,inventive activity can be considered based. E Document of particular importance (Category X) from whichY Publication of importance: the subject of the application may not result in an "older right" (earlier filing date, howevernovelty would be considered as based on inventive step, if the republished, protection is possible in AustriaMake publication with one or more other publications),is associated with this category and this connection for & publication which is a member of the same patent family.is obvious to a specialist.
    20/23
    DVR 0078018
    权利要求:
    Claims (11)
    [1]
    P a t e n t a n s r u c h e:
    1. A method for engraving, marking and / or inscribing a workpiece (7) with a laser plotter (2), in which in a housing (3) of the laser plotter (2) one preferably, but in particular two, beam sources (4) in the form of Lasers (5,6) are used, which preferably act alternately on the workpiece (7) to be machined, the workpiece (7) being placed on a machining table (9) in a defined manner and a laser beam (10) emitted by the beam source (4) Via deflection elements (11) is sent to at least one focusing unit (12), from which the laser beam (10) is deflected in the direction of the workpiece (7) and focused for processing, the control, in particular the position control of the workpiece (7) relative to the laser beam ( 10) via software running in a control unit (13), so that the workpiece (7) is processed line by line by adjusting a slide (21), characterized in that the control unit (13) has a de r Quality of the engraving-adapted sequence control, in which a defined ratio of a spot size (23) to line spacing and an engraving sequence (1) of the lines (22) to be processed are determined or carried out and the focusing unit (12) on the carriage (21) according to the defined one Parameters of the sequence control is controlled, the engraving sequence (1) takes place unidirectionally in blocks, with at least two blocks (27) being processed alternately.
    [2]
    2. The method according to claim 1 or 2, characterized in that each block (27) is formed from at least two, in particular four to ten lines (22).
    [3]
    3. The method according to any one of the preceding claims 1 to 3, characterized in that after the at least two blocks (27) have been completely processed by the control unit (13), the next blocks (27) are processed, the next blocks (27) or pseudorandom blocks (27) can be selected.
    [4]
    4. The method according to any one of the preceding claims 1 to 4, characterized in that the processing of the lines (22) within the blocks (27) takes place from top to bottom.
    21/23 uality _____________________________________________________________________ (LAST CLAIMS)
    [5]
    5. The method according to any one of the preceding claims 1 to 3, characterized in that the processing of the lines (22) within the blocks (27) takes place from bottom to top.
    [6]
    6. The method according to any one of the preceding claims 1 to 3, characterized in that the processing of the lines (22) within the blocks (27) takes place pseudorandomly.
    [7]
    7. The method according to any one of the preceding claims 1 to 6, characterized in that the processing of a line (22) from left to right or right to left or with alternating engraving direction.
    [8]
    8. The method according to any one of the preceding claims 1 to 6, characterized in that the processing of a line (22) from left to right or right to left or with alternating engraving direction.
    [9]
    9. The method according to any one of the preceding claims 1 to 6, characterized in that the processing of a line (22) is carried out with changing engraving direction.
    [10]
    10. The method according to any one of the preceding claims 1 to 6, characterized in that all defined blocks (27) are processed from top to bottom, for example first every first line (22) of each block (27) are processed, followed by the second Line (22) of each block (27) etc. is engraved.
    [11]
    11. Laser plotter (2) with a processing area (8) for positioning a workpiece (7), at least one but preferably two radiation sources (4) in the form of lasers (5, 6) with corresponding deflection elements (11) and a preferably movable focusing unit ( 12) and a control unit (13) for controlling the individual elements, in particular a slide (21) with a focusing unit (12) arranged movably thereon, characterized in that the control device (13) contributes to a sequence control adapted to the quality of the engraving which defines a defined ratio of a spot size (23) to line spacing and an engraving sequence (1) of the lines (22) to be processed
    22/23 uality ____________________________________________________________________ [LAST CLAIMS], is formed and the focusing unit (12) on the carriage (21) can be controlled according to the defined parameters of the sequence control, the control device (12) for processing blocks (27 ) is trained .
    23/23 quality
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    CN110382158A|2019-10-25|
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    引用文献:
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    DE2937429A1|1978-09-15|1980-04-03|Crosfield Electronics Ltd|Engraving block for colour printing - has straight or undulating matrix lines which do not overlap and which are made by laser or electron beams|
    US20160256959A1|2007-03-22|2016-09-08|General Lasertronics Corporation|Methods for stripping and modifying surfaces with laser-induced ablation|
    EP1577048A1|2004-03-18|2005-09-21|Trotec Produktions- und Vertriebs GMBH|Machining apparatus with two different machining devices and process for controlling the same|
    JP2008042032A|2006-08-08|2008-02-21|Sumitomo Heavy Ind Ltd|Stage driving method and laser working apparatus using the same|
    CN101140853A|2006-09-07|2008-03-12|财团法人工业技术研究院|Crystallization method of amorphous silicon layer and photo mask thereof|
    US8084712B2|2007-03-16|2011-12-27|TEN Medias LLC|Method and apparatus for laser marking objects|
    CN101125391A|2007-09-01|2008-02-20|南昌大学|Composite scanning filling method for quick forming machine|
    KR20120043072A|2009-08-06|2012-05-03|어플라이드 머티어리얼스, 인코포레이티드|Latitudinal iso-line scribe, stitching, and simplified laser and scanner controls|
    AT512092B1|2011-11-07|2014-03-15|Trotec Produktions U Vertriebs Gmbh|LASER PLOTTER AND METHOD FOR ENGRAVING, MARKING AND / OR LABELING A WORKPIECE|
    JP2014172069A|2013-03-08|2014-09-22|Keyence Corp|Laser processing device, laser processing condition setting device, laser processing method, laser processing condition setting method, laser processing condition setting program, computer-readable recording medium and recorded equipment|
    AT515839B1|2014-05-19|2016-06-15|Trotec Laser Gmbh|Method and device for machining workpieces|
    DE102014210611A1|2014-06-04|2015-12-17|Trumpf Werkzeugmaschinen Gmbh + Co. Kg|Method for marking a DataMatrix code on a workpiece by means of a laser beam|AT517328A1|2015-06-10|2016-12-15|Trodat Gmbh|Stamp, a stamp pad and a cap|
    AT517321A1|2015-06-10|2016-12-15|Trodat Gmbh|stamp|
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    法律状态:
    优先权:
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    ATA50902/2016A|AT519177B1|2016-10-06|2016-10-06|Method for engraving, marking and / or inscribing a workpiece with|ATA50902/2016A| AT519177B1|2016-10-06|2016-10-06|Method for engraving, marking and / or inscribing a workpiece with|
    PCT/AT2017/060237| WO2018064692A1|2016-10-06|2017-09-21|Method for engraving, marking and/or inscribing a workpiece using a laser plotter, and laser plotter herefor|
    CN201780069611.3A| CN110382158B|2016-10-06|2017-09-21|Method for engraving, marking and/or inscribing a workpiece with a laser plotter and corresponding laser plotter|
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    US16/338,585| US20200038996A1|2016-10-06|2017-09-21|Method for engraving, marking and/or inscribing a workpiece using a laser plotter, and laser plotter herefor|
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