CN103317231A - Double-focusing device of light splitting mechanism of laser drilling machine - Google Patents
Double-focusing device of light splitting mechanism of laser drilling machine Download PDFInfo
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- CN103317231A CN103317231A CN2013101373283A CN201310137328A CN103317231A CN 103317231 A CN103317231 A CN 103317231A CN 2013101373283 A CN2013101373283 A CN 2013101373283A CN 201310137328 A CN201310137328 A CN 201310137328A CN 103317231 A CN103317231 A CN 103317231A
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Abstract
The invention provides a double-focusing device of a light splitting mechanism of a laser drilling machine, and relates to the field of laser beam processing. The device is connected with a laser device, a multi-prism light splitting system, a drilling head and a paper advance mechanism for driving tipping paper to continuously move, and comprises a one-stage lens cone, a first focusing mirror, a two-stage lens cone, a second focusing mirror, a controller, an air pressure sensor, an air feed pipe and the like. The device can ensure that the energy of the laser beam subjected to light splitting is consistent, efficiently solves the problem that the drilling effect is inconsistent, controls the drilling effect, bore diameters and air permeability of tipping paper conveniently in the practical production, improves the drilling uniformity of the tipping paper, increases the drilling density, and efficiently improves the air permeability and stability of the tipping paper subjected to laser drilling.
Description
Technical field
The present invention relates to use the laser beam manufacture field, be specifically related to the focusing arrangement of spectrophotometric device on the laser-beam drilling machine.
Background technology
Along with the development of modern science and technology, laser produces device and has been applied in the increasing industry, and wherein, laser-beam drilling machine is fast with its intrinsic speed, consume less and the advantage such as environmental protection and be widely used and promote.At present, laser-beam drilling machine is widely used in field of laser processing, utilizes the laser of high-energy-density that workpiece is carried out local irradiation, makes the gasification of workpiece surface material, thereby forms micropore at surface of the work.
Compare with technology such as static punching, mechanical punchings, the laser boring tipping paper has advantages of that other technique perforated tipping paper is incomparable, is mainly manifested in: 1. punching process produces paper scrap and is vaporized, and eyelet cleans and standard very much, and can not produce peculiar smell; And the coking phenomenon can occur in the static punching, has unavoidably the smell of burning; Adopt mechanical punching to adopt raw material proportioning and coating that harsher requirement is arranged to tipping paper (to basic paper), laser drilling then is not strict with very much; 2. air permeability and perforation density scope are more much bigger than static punching, mechanical punching scope, can satisfy different client's greatest requirements; 3. in low ventilative situation, institute's eyelet work is finding of naked eye hardly; 4. the air permeability deviation factor is extremely low, and machinery, static drilling technology deviation is then much bigger; 5. narrower pore area can reduce leakage of adhesive, makes the cigarette machine running more smooth and easy; 6. compare with other hole knockout, the obbbin joint greatly reduces, and also offers convenience to production.
For improving punching speed and scope, existing laser-beam drilling machine adopts double end or multiple head laser puncher more, corresponding two or more sets the scanning focused camera lenses of laser that are about to a lasing light emitter generation punch simultaneously, pass through laser drilling device, after the laser energy of laser instrument output distributed, be input in the probe, thereby realization is in the purpose of same plane large tracts of land high-speed perforating.Existing laser-beam drilling machine is the polygon prism that adopts High Rotation Speed, and the output beam of lower-wattage continuous wave laser is repeated to sweep several independently optical systems (such as focus head) successively.Continuous laser beam sweeps focus head at every turn and just form a little laser pulse in this optical system, repeats to sweep just independently to have formed a series of little laser pulses in each optical focus head, and these a series of little laser pulses are used for punching.
The principal element that affects laser boring comprises: tipping paper paper feed linear velocity fluctuates on the impact of punching result's impact, condenser lens focal length and focusing focal position on punching result's impact, laser output power on punching result's impact, polygon prism rotating speed, wherein, the key parameters such as the energy density for laser beam, perforating efficiency, aperture and tipping paper air permeability of condenser lens focal length and focusing focal position have considerable influence.The condenser lens focal length mainly affects the punching result by the laser focal spot size that projects on the tipping paper to the impact of perforated tipping paper air permeability.In the situation that the laser-beam divergence angle is certain, the condenser lens focal length is larger, and the focal spot radius after the focusing is larger, and the punching radius is larger after projecting on the tipping paper, thereby the tipping paper air permeability is larger after the punching, and perhaps identical air permeability requires down, and perforation density is less.After the condenser lens focal length was determined, focusing on the focal position also had considerable influence to the punching result.Focus is different, and the spot size that acts on the tipping paper is different, and the aperture, hole of getting is different, thereby the air permeability of perforated tipping paper is different.
The employed tipping paper laser boring machine of each producer all uses monofocal laser boring mode now, and the laser energy of light splitting is inconsistent, the punching focusing effect is relatively poor, and the punching eyelet is large, the eyelet lack of homogeneity, air permeability is unstable, has affected the control to perforating efficiency, aperture and tipping paper air permeability.Also have, in the processing, laser beam is through light path, amasthenic lens focuses on the target workpiece, can heat the micronic dust in the light path and steam in the laser propagation process, amasthenic lens self also can absorb certain heat in aggregation laser, prolongation along with the production time, gas temperature in the light path and the temperature of amasthenic lens all can raise gradually, the utilization ratio of energy has reduced on the one hand, the stability of light path has reduced on the other hand, also may cause focal length variations thus, the consequences such as amasthenic lens damage, and simple dependence passes into the gas cooled poor effect, limited for the raising of stability of layout.
So, in the actual production in the urgent need to a kind of stability that can guarantee laser optical path, effectively utilize luminous energy, make focal length and focus guarantee that the laser beam energy of light splitting is consistent, the inconsistent problem of effect that prevents from punching is convenient in actual production the laser focusing device to the control of perforating efficiency, aperture and tipping paper air permeability simultaneously.
Summary of the invention
For overcoming the deficiency that exists in the background technology, the object of the present invention is to provide the focusing arrangement of spectrophotometric device on a kind of laser-beam drilling machine with two lens, the laser beam energy that can guarantee light splitting is consistent, efficiently solve the inconsistent problem of bull punching effect, and be convenient in actual production the control to perforating efficiency, aperture and tipping paper air permeability.
For achieving the above object, the present invention is by the following technical solutions: the double focusing device of laser-beam drilling machine spectrophotometric device, its with laser instrument, multiprism system system, perforating head with the driving tipping paper continuous motion be connected paper advance mechanism and be connected, it is characterized in that, this device comprises one-level lens barrel 1, the first focus lamp 2, secondary lens barrel 3, the second focus lamp 4, controller 5, baroceptor 6, snorkel 7; Described one-level lens barrel 1 arranges respectively the externally threaded cartridge of different-diameter for two ends, in the arranged outside of former and later two external screw thread intersections annular boss 8 is arranged, and corresponding inboard is provided with the groove 9 that the first focus lamp 2 is installed; The bottom of described secondary lens barrel 3 is the hollow cone of perforate, top is tubular, and top is provided with the internal thread that cooperates with one-level lens barrel 1 front external screw thread, and O-ring seal 10 is housed, the inboard on secondary lens barrel 3 tops is equipped with the second focus lamp 4 in the position of avoiding internal thread; Offer air admission hole 11 on the barrel on described secondary lens barrel 3 tops, the position of air admission hole 11 is in the second focus lamp 4 tops, and snorkel 7 is tightly connected with lens barrel air admission hole 11, and by air admission hole 11 and secondary lens barrel 3 UNICOMs; Described baroceptor 6 is arranged on the inwall of secondary lens barrel 3, and over against the position of air inlet, the output signal of baroceptor 6 is passed to controller 5, and controller 5 is adjusted aspirated pressure, realizes the cooling to focusing arrangement; Pass base 13 after described one-level lens barrel 1, the first focus lamp 2, secondary lens barrel 3,4 assemblings of the second focus lamp and be fixed, base 13 inner hollow, its surface is provided with water inlet pipe 14 and outlet pipe 15 and inner UNICOM, cools off by water circulation.
For further improving the stability of laser optical path, can heat detector 12 be set on baroceptor 6 next doors, and be connected with controller 5, in real time with the temperature feedback in the focusing arrangement to controller 5, realization is to the regulation and control of admission pressure.
Beneficial effect of the present invention is:
1. double focusing device of the present invention has improved the sharp effective power of wearing paper of laser, per one laser head can both fully be swashed wear paper, improves the paper perforating uniformity.
2. double focusing device Effective Raise focusing effect of the present invention dwindles laser beam and focuses on focus, can get uniform small pores, and the punching aperture dwindles over half.
3. double focusing device of the present invention is under equal-wattage after-combustion lasing condition, the penetrability of its punching has increased more by force the punch density of tipping paper, it is more regular that the eyelet of punching is compared the monofocal punching, improved tipping paper punching uniformity and tipping paper air permeability stability.The Effective Raise tobacco smoke filter element is chewed venting capability, thereby improves the reducing cigarette tar and reducing effect.
4. double focusing application of installation of the present invention is on existing laser-beam drilling machine, the laser beam energy that can guarantee light splitting is consistent, efficiently solve the inconsistent problem of bull punching effect, and be convenient in actual production the control to perforating efficiency, aperture and tipping paper air permeability, Effective Raise laser boring tipping paper air permeability stability, the Effective Raise tobacco smoke filter element is chewed venting capability, thereby improves the reducing cigarette tar and reducing effect.
5. table 1 is to utilize conventional monofocal laser-beam drilling machine punch air permeability and the coefficient of variation data thereof of rear tipping paper, punching laser power: 509W, chart drive speed: 150m/min, hole density: 13.2/cm.Table 1:
Table 2 has been put down in writing the tipping paper air permeability quality testing result after utilizing respectively double focusing equipment to punch, punching laser power: 509W, chart drive speed: 150m/min, hole density: 15.4/cm.Table 2:
Can find out, under the power condition consistent with chart drive speed, the punch density of monofocal equipment is less than double focusing equipment, and the air permeability coefficient of variation, be the undulating value of air permeability, double focusing equipment then is significantly less than monofocal equipment, shows that the stability of its quality is better.
Description of drawings
Fig. 1 is the overall structure schematic diagram of double focusing device of the present invention.
Fig. 2 is the one-level lens barrel structure schematic diagram of double focusing device of the present invention.
Fig. 3 is the one-level lens barrel generalized section of double focusing device of the present invention.
Fig. 4 is the secondary lens barrel structure schematic diagram of double focusing device of the present invention.
Fig. 5 is the secondary lens barrel generalized section of double focusing device of the present invention.
Fig. 6 is the work schematic diagram of double focusing device of the present invention.
Fig. 7 is the scheme of installation of double focusing device of the present invention.
1-one-level lens barrel, 2-the first focus lamp, 3-secondary lens barrel, 4-the second focus lamp, 5-controller, 6-baroceptor, 7-snorkel, 8-annular boss, 9-groove, 10-O-ring seal, 11-air admission hole, 12-heat detector, 13-base, 14-water inlet pipe, 15-outlet pipe.
The specific embodiment
Reach with reference to the accompanying drawings explanation, the present invention is further specified, but protection scope of the present invention is not limited only to this.
Shown in Fig. 1,2,3,4,5, the double focusing device of the described laser-beam drilling machine spectrophotometric device of the present embodiment, its with laser instrument, multiprism system system, perforating head with the driving tipping paper continuous motion be connected paper advance mechanism and be connected, this device comprises one-level lens barrel 1, the first focus lamp 2, secondary lens barrel 3, the second focus lamp 4, controller 5, baroceptor 6, snorkel 7; Described one-level lens barrel 1 arranges respectively the externally threaded cartridge of different-diameter for two ends, in the arranged outside of former and later two external screw thread intersections annular boss 8 is arranged, and corresponding inboard is provided with the groove 9 that the first focus lamp 2 is installed; The bottom of described secondary lens barrel 3 is the hollow cone of perforate, top is tubular, and top is provided with the internal thread that cooperates with one-level lens barrel 1 front external screw thread, and O-ring seal 10 is housed, the inboard on secondary lens barrel 3 tops is equipped with the second focus lamp 4 in the position of avoiding internal thread; Offer air admission hole 11 on the barrel on described secondary lens barrel 3 tops, the position of air admission hole 11 is in the second focus lamp 4 tops, and snorkel 7 is tightly connected with air admission hole 11, and by air admission hole 11 and secondary lens barrel 3 UNICOMs; Described baroceptor 6 is arranged on the inwall of secondary lens barrel 3, and over against the position of air admission hole 11, the output signal of baroceptor 6 is passed to controller 5, and controller 5 is adjusted aspirated pressure, realizes the cooling to the double focusing device; Pass base 13 after one-level lens barrel 1, the first focus lamp 2, secondary lens barrel 3,4 assemblings of the second focus lamp and be fixed, base 13 inner hollow, its surface is provided with water inlet pipe 14 and outlet pipe 15 and inner UNICOM, cools off by water circulation.
Shown in Fig. 1,2,3,4,5,6,7, the double focusing device of the described laser-beam drilling machine spectrophotometric device of the present embodiment, its with laser instrument, multiprism system system, perforating head with the driving tipping paper continuous motion be connected paper advance mechanism and be connected, this device comprises one-level lens barrel 1, the first focus lamp 2, secondary lens barrel 3, the second focus lamp 4, controller 5, baroceptor 6, snorkel 7; Described one-level lens barrel 1 arranges respectively the externally threaded cartridge of different-diameter for two ends, in the arranged outside of former and later two external screw thread intersections annular boss 8 is arranged, and corresponding inboard is provided with the groove 9 that the first focus lamp 2 is installed; The bottom of described secondary lens barrel 3 is the hollow cone of perforate, top is tubular, and top is provided with the internal thread that cooperates with one-level lens barrel 1 front external screw thread, and O-ring seal 10 is housed, the inboard on secondary lens barrel 3 tops is equipped with the second focus lamp 4 in the position of avoiding internal thread; Offer air admission hole 11 on the barrel on described secondary lens barrel 3 tops, the position of air admission hole 11 is in the second focus lamp 4 tops, and snorkel 7 is tightly connected with air admission hole 11, and by air admission hole 11 and secondary lens barrel 3 UNICOMs; Described baroceptor 6 is arranged on the inwall of secondary lens barrel 3, position over against air admission hole 11, the output signal of baroceptor 6 is passed to controller 5, controller 5 is adjusted aspirated pressure, passing base 13 after one-level lens barrel 1, the first focus lamp 2, secondary lens barrel 3,4 assemblings of the second focus lamp is fixed, base 13 inner hollow, its surface are provided with water inlet pipe 14 and outlet pipe 15 and inner UNICOM, cool off by water circulation; For further improving the stability of laser optical path, can heat detector 12 be set on baroceptor 6 next doors, and be connected with controller 5, in real time with the temperature feedback in the focusing arrangement to controller 5, realization is to the regulation and control of admission pressure.
Claims (2)
1. the double focusing device of laser-beam drilling machine spectrophotometric device, with laser instrument, multiprism system system, perforating head with the driving tipping paper continuous motion be connected paper advance mechanism and be connected, it is characterized in that, this device comprises one-level lens barrel (1), the first focus lamp (2), secondary lens barrel (3), the second focus lamp (4), controller (5), baroceptor (6), snorkel (7); Described one-level lens barrel (1) arranges respectively the externally threaded cartridge of different-diameter for two ends, in the arranged outside of former and later two external screw thread intersections annular boss (8) is arranged, and corresponding inboard is provided with the groove (9) that the first focus lamp (2) is installed; The bottom of described secondary lens barrel (3) is the hollow cone of perforate, top is tubular, top is provided with the internal thread that cooperates with the front external screw thread of one-level lens barrel (1), and O-ring seal (10) is housed, the inboard on secondary lens barrel (3) top is equipped with the second focus lamp (4) in the position of avoiding internal thread; Offer air admission hole (11) on the barrel on described secondary lens barrel (3) top, the position of air admission hole (11) is in the second focus lamp (4) top, snorkel (7) is tightly connected with lens barrel air admission hole (11), and by air admission hole (11) and secondary lens barrel (3) UNICOM; Described baroceptor (6) is arranged on the inwall of secondary lens barrel (3), and over against the position of air inlet, the output signal of baroceptor (6) is passed to controller (5), and controller (5) is adjusted aspirated pressure, realizes the cooling to focusing arrangement; Passing base (13) after described one-level lens barrel (1), the first focus lamp (2), secondary lens barrel (3), the second focus lamp (4) assembling is fixed, base (13) inner hollow, its surface is provided with water inlet pipe (14) and outlet pipe (15) and inner UNICOM, cools off by water circulation.
2. the double focusing device of laser-beam drilling machine spectrophotometric device according to claim 1, it is characterized in that, on baroceptor (6) next door heat detector (12) is set, and is connected with controller (5), real-time with the temperature feedback in the focusing arrangement to controller (5).
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| CN201310137328.3A CN103317231B (en) | 2013-04-19 | 2013-04-19 | Double-focusing device of light splitting mechanism of laser drilling machine |
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| CN201310137328.3A CN103317231B (en) | 2013-04-19 | 2013-04-19 | Double-focusing device of light splitting mechanism of laser drilling machine |
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| CN103317231A true CN103317231A (en) | 2013-09-25 |
| CN103317231B CN103317231B (en) | 2015-04-08 |
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| CN2470044Y (en) * | 2001-04-05 | 2002-01-09 | 云南玉溪水松纸厂 | Light-splitting mechanism of thin base-material laser boring machine |
| CN101913026A (en) * | 2010-06-30 | 2010-12-15 | 苏州市博海激光科技有限公司 | Double-head integrated laser drilling device for cigarette tipping paper |
| CN101972894A (en) * | 2010-09-26 | 2011-02-16 | 武汉华工激光工程有限责任公司 | Laser drilling machine for curvedly drilling tipping paper |
| CN201988841U (en) * | 2011-01-30 | 2011-09-28 | 比亚迪股份有限公司 | Laser device |
| CN202667925U (en) * | 2012-02-08 | 2013-01-16 | 嘉兴奇石光电科技有限公司 | Cigarette tipping paper laser perforating device |
| CN202877736U (en) * | 2012-09-14 | 2013-04-17 | 武汉市凯瑞迪激光技术有限公司 | Laser punching device for cigarette tipping paper |
| CN202877730U (en) * | 2012-09-14 | 2013-04-17 | 武汉市凯瑞迪激光技术有限公司 | Double-station cigarette tipping paper laser drilling equipment |
| CN203171140U (en) * | 2013-04-19 | 2013-09-04 | 云南玉溪水松纸厂 | Double-focusing device of laser splitting mechanism of laser punching machine |
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2013
- 2013-04-19 CN CN201310137328.3A patent/CN103317231B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63188486A (en) * | 1987-01-30 | 1988-08-04 | Japan Tobacco Inc | Method and device for piercing beltlike sheet material |
| CN2470044Y (en) * | 2001-04-05 | 2002-01-09 | 云南玉溪水松纸厂 | Light-splitting mechanism of thin base-material laser boring machine |
| CN101913026A (en) * | 2010-06-30 | 2010-12-15 | 苏州市博海激光科技有限公司 | Double-head integrated laser drilling device for cigarette tipping paper |
| CN101972894A (en) * | 2010-09-26 | 2011-02-16 | 武汉华工激光工程有限责任公司 | Laser drilling machine for curvedly drilling tipping paper |
| CN201988841U (en) * | 2011-01-30 | 2011-09-28 | 比亚迪股份有限公司 | Laser device |
| CN202667925U (en) * | 2012-02-08 | 2013-01-16 | 嘉兴奇石光电科技有限公司 | Cigarette tipping paper laser perforating device |
| CN202877736U (en) * | 2012-09-14 | 2013-04-17 | 武汉市凯瑞迪激光技术有限公司 | Laser punching device for cigarette tipping paper |
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| CN203171140U (en) * | 2013-04-19 | 2013-09-04 | 云南玉溪水松纸厂 | Double-focusing device of laser splitting mechanism of laser punching machine |
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