CN102275390A - Laser marking method for reflective film and marking apparatus therefor - Google Patents
Laser marking method for reflective film and marking apparatus therefor Download PDFInfo
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- CN102275390A CN102275390A CN2011101574211A CN201110157421A CN102275390A CN 102275390 A CN102275390 A CN 102275390A CN 2011101574211 A CN2011101574211 A CN 2011101574211A CN 201110157421 A CN201110157421 A CN 201110157421A CN 102275390 A CN102275390 A CN 102275390A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010330 laser marking Methods 0.000 title claims abstract description 11
- 239000012528 membrane Substances 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000011514 reflex Effects 0.000 claims description 5
- 238000010009 beating Methods 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005338 frosted glass Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 2
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004886 head movement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
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Abstract
The present invention relates to a laser marking method for a reflective film and a marking apparatus therefor. The marking method comprises the steps as follows: a laser beam passes through a character die with a marking pattern after being expended, the laser beam is focused through a focusing mirror, the reflective film is disposed in front of or at the back of the focus, the laser beam including the marking pattern information is printed on the reflective film once and for all, and a mark same to the marking pattern is formed on the reflective film. The marking apparatus comprises a main stand one side of which is provided with a focusing mirror support, a color indicating light source arranged on the main stand, a resonant cavity total reflective mirror, a Q switch, a single lamp condensing cavity, a resonant cavity half reflective mirror, a double lamp condensing cavity, a beam expanding lens, a character die disposed on the main stand or the focusing mirror support, and a light transforming mirror and a focusing mirror disposed in the focusing mirror support. The advantages lie in that the marking speed for reflective material is greatly increased, and the structure of the marking apparatus is substantially simplified.
Description
Technical field
The present invention relates to laser marking method and device, relate in particular to reflective membrane laser marking method and marking device thereof.
Background technology
The reflective membrane of making matrix with tiny glass beads is to use reflectorized material extremely widely, this class material removes road indication, the roadside direction board that is used for transportation industry in a large number, outside the automotive license plate, also used making material as anti-fake mark, manufacturer stamps laser anti-counterfeit tag for anti-personation on its commodity of reflectorized material.
The making of existing anti-fake mark is to make anti-fake mark with laser scanning methods at reflectorized material, this method is that the scanning formula that will form indicia patterns is compiled into software input computer, by computer control laser head reflectorized material is carried out the scanning of pointwise, finally forming on the reflective material: displayable indicia patterns on a reflection direction.This indicia patterns is made up of several scanning elements, and each scanning element spot diameter is about 0.1mm, is the 23mm indicia patterns as scanning a diameter, needs the time of cost about 1 minute.This is for the anti-fake mark that is provided to typical products in mass production, and such speed of production obviously its efficient is low.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of production efficiency very high reflective membrane laser marking method and marking device thereof.It is achieved through the following technical solutions:
Described marking method is, it adopts a design that the solid mask of mark pattern is arranged, allow the laser beam that produces by laser generator expand bundle through beam expanding lens, the spot diameter of laser beam is extended at 16～45mm, allow the laser beam that expands after restrainting pass described solid mask, formation contains the laser beam of mark pattern-information, this laser beam line focus mirror focuses on, form focus C, reflective membrane places front side or the rear side of focus C, described disposable the beating on reflective membrane of laser beam of containing the mark pattern-information forms the mark identical with the mark pattern on reflective membrane.
The further design of described marking method is, described solid mask is to make the mark pattern on the substrate made from quartz glass.
The further design of described marking method is, described mark pattern setting is in substrate one side, and this mark pattern is formed by the good light glassy zone of light transmission and the frosted glass zone or the coat of metal zone of light transmission difference.
Described smooth marking device, comprise main support, place the main support front wallboard outside and with main support UNICOM the focus lamp support, place commentaries on classics light microscopic and the focus lamp in the focus lamp support and place the laser generator of mainly forming on the main support by color indication light modulation source, resonator total reflective mirror, Q-switch, single lamp laser pump cavity, resonator half anti-mirror, two lamp laser pump cavity, also comprise beam expanding lens and solid mask; Beam expanding lens places on the interior position corresponding to described pair of lamp laser pump cavity outgoing laser beam of main support; The solid mask places the beam expanding lens rear end or places on the light path position of changeing in the focus lamp support between light microscopic and the focus lamp; Described color indication light modulation source, resonator total reflective mirror, Q-switch, single lamp laser pump cavity, resonator half anti-mirror and beam expanding lens, two lamp laser pump cavity and beam expanding lens are sequentially arranged in the main support, commentaries on classics light microscopic in the focus lamp support is positioned at a side of focus lamp, and change the center of the incidence angle of light microscopic corresponding to beam expanding lens or solid mask, angle of reflection is corresponding to the center of described solid mask or focus lamp.Side, and change the center of the incidence angle of light microscopic corresponding to beam expanding lens or solid mask, angle of reflection is corresponding to the center of described solid mask or focus lamp.
The further design of described marking device is, described color indication light modulation source, resonator total reflective mirror, Q-switch, single lamp laser pump cavity resonant cavity half anti-mirror and beam expanding lens and two lamp laser pump cavity divide two rows to be sequentially arranged in the main support along the main support length direction respectively, resonator half anti-mirror laser beam output and two lamp laser pump cavity laser beam input correspondence position of this two rows, one end are respectively equipped with 45 ° of speculums, reflex to the input of two lamp laser pump cavities in order to the laser beam that will reflect resonator half anti-mirror output.
The further design of described marking device is that described color indication light modulation source is the He-Ne lamp.
The present invention is by adopting the solid mask and laser beam being expanded bundle, form larger-diameter light beam, its light beam can reach 40 mm, in the single pass of laser, just can on reflectorized material, form complete indicia patterns like this, form following beneficial effect fruit: 1) the mark speed on reflectorized material has improved 10 times, has improved mark production efficiency greatly; 2) owing to adopted the solid mask, the shaping of mark pattern no longer need computer control laser scanning head movement locus form, the formation of marking device is simplified greatly, marking device of the present invention thus is simple for structure, simple to operate, the production cost of product anti-fake mark is reduced.
Description of drawings
Fig. 1 is the structural representation of marking device one embodiment of the present invention.
Fig. 2 is the structural representation of another embodiment of marking device of the present invention.
Among the figure, 1. He-Ne lamp, 2. resonator total reflective mirror, 3. Q-switch, 4. single lamp laser pump cavity, 5 resonators, half anti-mirror, 7. speculum, 8. pair lamp laser pump cavity, 9. beam expanding lens, 10. solid mask, 11 change light microscopics, 12 focus lamps, 20 main supports, 21 front wallboards, 30 focus lamp supports, 40. reflective membrane, 41. marks.
The specific embodiment
Embodiment one
Present embodiment is the scheme of comparative optimization, and its device up to standard mainly is made up of main support 20, focus lamp support 30, beam expanding lens 9, solid mask 10, commentaries on classics light microscopic 11, focus lamp 12 and laser generator as shown in Figure 1.Laser generator then mainly is made up of He-Ne lamp 1, resonator total reflective mirror 2, Q-switch 3, single lamp laser pump cavity 4, resonator half anti-mirror 5, two lamp laser pump cavity 8, and present embodiment adopts the He-Ne lamp that sends ruddiness as color indication light modulation source.In order to dwindle the length of main support 20, the relevant components and parts on the main support 20 are arranged in two rows: He-Ne lamp 1, resonator total reflective mirror 2, Q-switch 3, single lamp laser pump cavity 4 resonant cavity half anti-mirror 5 and beam expanding lens 9 and two lamp laser pump cavity 8 optical cavities divide two rows to be arranged in from left to right in the main support 20 successively along the main support length direction respectively.The laser beam output of the resonator half anti-mirror 5 of this two rows components and parts right part and two lamp laser pump cavity laser beam input correspondence position are respectively equipped with 45 ° is changeed light microscopic 7, reflexes to the input of two lamp laser pump cavities 8 in order to the laser beam with resonator half anti-mirror 5 outputs.Focus lamp support 30 is connected on the front wallboard 21 of main support 20, and and main support 20 between be provided with light path.Changeing light microscopic 11, solid mask 10 and focus lamp 12 places in the focus lamp support 30, solid mask 10 and focus lamp 12 place a side of changeing light microscopic 11 according to order from the close-by examples to those far off, change the position of light microscopic 11 corresponding to beam expanding lens 9, its incidence angle is by being provided with the center of light path corresponding to beam expanding lens between focus lamp support 30 and the main support 20, angle of reflection is corresponding to the center of solid mask 10.
Solid mask 10 is substrates made from quartz glass, and on the side of this substrate the mark pattern is arranged.The mark pattern be formed with dual mode: the first, form by the good light glassy zone of light transmission and the frosted glass zone of light transmission difference; It two is made up of light transmission good the light glassy zone and the light transmission difference coat of metal.
When above-mentioned reflective membrane laser mark printing device carried out mark work, the He-Ne lamp that sends ruddiness was entered in the light path by resonator total reflective mirror 2 as colorful indication light source, and light beam is thereafter taken on a red color.The light that pumping lamp in single lamp laser pump cavity sends focuses in the laser crystal and goes, YAG produces laser with excitation work Wu Quality neodymium-doped yttrium-aluminum garnet, come the back reflective vibration in the reflection channel of the laser beam that produces between resonator total reflective mirror and resonator half anti-mirror, the energy of laser beam is constantly assembled, and control the frequency range of laser pulse by Q-switch, to obtain the laser beam of certain pulse width and light intensity radiation.In above-mentioned reflection channel, laser intense radiation with certain energy sees through resonator half anti-mirror and forms laser beam A, the spot diameter of this laser beam A is about 4～7mm, through two 45 ° of mirror reflects, 180 ° of inputs that enter two lamp laser pump cavities of laser beam A refraction, through the incentive action of two lamp laser pump cavities, the stronger laser beam B of the output of two lamp laser pump cavities output energy, the spot diameter of this laser beam B increases by 1 mm approximately.Laser beam B expands bundle through beam expanding lens 9, spot diameter enlarges, generally enlarge 2～8 times at 16～45mm, form laser beam D, laser beam D changes light microscopics 11 by 45 ° and reflexes on the type matrix 10 with mark pattern, formation contains the laser beam E of mark pattern-information, this laser beam line focus mirror 12 focuses on, and forms focus C, and reflective membrane 40 places the front side of focus C, disposable the beating on reflective membrane 40 of laser beam E of containing the mark pattern-information forms the mark 41 identical with the mark pattern on reflective membrane 40.Be greatly improved with this kind method mark production efficiency, can reach 50m/min.
Embodiment two
The marking device of present embodiment as shown in Figure 2, the components and parts of its composition are identical with marking device shown in Figure 1, and the arrangement connected mode of components and parts is also basic identical.Different is the placement location difference of solid mask 10.In the present embodiment, solid mask 10 is placed on the rear side correspondence position of the beam expanding lens 9 on the main support 20.Only being equipped with in the focus lamp support 30 changes light microscopic 11 and focus lamp 12, focus lamp 12 places a side of changeing light microscopic 11, change the position of light microscopic 11 corresponding to solid mask 10, its incidence angle is by being provided with the center of light path corresponding to solid mask 10 between focus lamp support 30 and the main support 20, angle of reflection is corresponding to the center of focus lamp 12.
Present embodiment marking device and marking method are same as the previously described embodiments, its the course of work is also basic identical, slightly different is, expand the laser beam D elder generation process solid mask of restrainting 10 through beam expanding lens 9, after formation contains the laser beam E of mark pattern-information, reflex to focus lamp 12 focusing through changeing light microscopic 11 again, form focus C, reflective membrane 40 places the rear side of focus C, contains disposable the beating on reflective membrane 40 of laser beam E of mark pattern-information, forms the mark identical with the mark pattern on reflective membrane 40.
Claims (7)
1. reflective membrane laser marking method, it is characterized in that adopting a design that the type matrix of mark pattern is arranged, allow the laser beam that produces by laser generator expand bundle through beam expanding lens, the spot diameter of laser beam is enlarged, allow the laser beam that expands after restrainting pass described type matrix, formation contains the laser beam of mark pattern-information, this laser beam line focus mirror focuses on, form focus C, reflective membrane places front side or the rear side of focus C, described disposable the beating on reflective membrane of laser beam of containing the mark pattern-information forms the mark identical with the mark pattern on reflective membrane.
2. reflective membrane laser marking method according to claim 1 is characterized in that described type matrix is to make the mark pattern on the substrate made from quartz glass.
3. reflective membrane laser marking method according to claim 2 is characterized in that described mark pattern setting in substrate one side, and this mark pattern is formed by the frosted glass zone or the coat of metal zone of good light glassy zone of light transmission and light transmission difference.
4. reflective membrane laser marking method according to claim 1 is characterized in that described spot diameter enlarges 2～8 times extremely at 16～45mm.
5. the reflective membrane laser mark printing device of reflective membrane laser marking method according to claim 1, comprise main support, place the main support front wallboard outside and with main support UNICOM the focus lamp support, place commentaries on classics light microscopic and the focus lamp in the focus lamp support and place the laser generator of mainly forming on the main support by color indication light modulation source, resonator total reflective mirror, Q-switch, single lamp laser pump cavity, resonator half anti-mirror, two lamp laser pump cavity, it is characterized in that also comprising beam expanding lens and type matrix; Beam expanding lens places on the interior position corresponding to described pair of lamp laser pump cavity outgoing laser beam of main support; Type matrix places the beam expanding lens rear end or places on the light path position of changeing in the focus lamp support between light microscopic and the focus lamp; Described color indication light modulation source, resonator total reflective mirror, Q-switch, single lamp laser pump cavity, resonator half anti-mirror and beam expanding lens, two lamp laser pump cavity and beam expanding lens are sequentially arranged in the main support; commentaries on classics light microscopic in the focus lamp support is positioned at a side of focus lamp; and change the center of the incidence angle of light microscopic corresponding to beam expanding lens or type matrix, angle of reflection is corresponding to the center of described type matrix or focus lamp.
6. reflective membrane laser mark printing device according to claim 5, it is characterized in that described color indication light modulation source, resonator total reflective mirror, Q-switch, single lamp laser pump cavity resonant cavity half anti-mirror and beam expanding lens and two lamp laser pump cavity divide two rows to be sequentially arranged in the main support along the main support length direction respectively, resonator half anti-mirror laser beam output and two lamp laser pump cavity laser beam input correspondence position of this two rows, one end are respectively equipped with 45 ° of speculums, reflex to the input of two lamp laser pump cavities in order to the laser beam that will reflect resonator half anti-mirror output.
7. reflective membrane laser mark printing device according to claim 5 is characterized in that described color indication light modulation source is the He-Ne lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101574211A CN102275390B (en) | 2011-06-13 | 2011-06-13 | Laser marking method for reflective film and marking apparatus therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101574211A CN102275390B (en) | 2011-06-13 | 2011-06-13 | Laser marking method for reflective film and marking apparatus therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102275390A true CN102275390A (en) | 2011-12-14 |
| CN102275390B CN102275390B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101574211A Expired - Fee Related CN102275390B (en) | 2011-06-13 | 2011-06-13 | Laser marking method for reflective film and marking apparatus therefor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361956A (en) * | 2014-11-21 | 2015-02-18 | 淮南新光神光纤线缆有限公司 | Aviation fluorine-containing polymer insulated wire and cable surface laser character printing method |
| CN109290676A (en) * | 2018-11-21 | 2019-02-01 | 浙江龙游道明光学有限公司 | A kind of anti-fake hyperbola marking device of Retroflective article |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422573A (en) * | 1990-05-18 | 1992-01-27 | Tamura Seisakusho Co Ltd | Hot air reflow device |
| JPH09222573A (en) * | 1995-12-12 | 1997-08-26 | Fuji Photo Film Co Ltd | Color space light modulator |
| CN1456944A (en) * | 2002-05-10 | 2003-11-19 | 三星电子株式会社 | Colour laser printers |
| CN201143798Y (en) * | 2008-01-16 | 2008-11-05 | 俞国麟 | Laser marker |
| CN202115117U (en) * | 2011-06-13 | 2012-01-18 | 南京中南激光设备有限公司 | Reflective membrane laser marking apparatus |
-
2011
- 2011-06-13 CN CN2011101574211A patent/CN102275390B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422573A (en) * | 1990-05-18 | 1992-01-27 | Tamura Seisakusho Co Ltd | Hot air reflow device |
| JPH09222573A (en) * | 1995-12-12 | 1997-08-26 | Fuji Photo Film Co Ltd | Color space light modulator |
| CN1456944A (en) * | 2002-05-10 | 2003-11-19 | 三星电子株式会社 | Colour laser printers |
| CN201143798Y (en) * | 2008-01-16 | 2008-11-05 | 俞国麟 | Laser marker |
| CN202115117U (en) * | 2011-06-13 | 2012-01-18 | 南京中南激光设备有限公司 | Reflective membrane laser marking apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361956A (en) * | 2014-11-21 | 2015-02-18 | 淮南新光神光纤线缆有限公司 | Aviation fluorine-containing polymer insulated wire and cable surface laser character printing method |
| CN109290676A (en) * | 2018-11-21 | 2019-02-01 | 浙江龙游道明光学有限公司 | A kind of anti-fake hyperbola marking device of Retroflective article |
| CN109290676B (en) * | 2018-11-21 | 2023-11-14 | 浙江龙游道明光学有限公司 | Anti-fake hyperbola marking device for retroreflective product |
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|---|---|
| CN102275390B (en) | 2013-11-20 |
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