CN203171138U - Polarization device of laser drilling equipment - Google Patents
Polarization device of laser drilling equipment Download PDFInfo
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- CN203171138U CN203171138U CN 201320215818 CN201320215818U CN203171138U CN 203171138 U CN203171138 U CN 203171138U CN 201320215818 CN201320215818 CN 201320215818 CN 201320215818 U CN201320215818 U CN 201320215818U CN 203171138 U CN203171138 U CN 203171138U
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Abstract
The utility model discloses a polarization device of laser drilling equipment. The polarization direction of laser beams of a carbon dioxide laser device is changed through reflection of a reflector and scanning and light splitting of a polygonal mirror, so that drilling is not uniform to enable air permeability of products to be unstable. According to the technical scheme, the polarization device is added to the position of an outlet of the carbon dioxide laser device and emitting light beams of the carbon dioxide laser device are vertical line polarized light which are formed into 45 degree line polarized light through reflection of a 45 degree reflector (4) and then are emitted through a 45 degree phase delay mirror to form into circularly polarized light to enter into a laser drilling system. The polarization device of the laser drilling equipment has the advantages of being convenient to install and causing no effect to quality of the original carbon dioxide laser beams based on zero change of the structure of the original carbon dioxide laser device due to the add-on type polarization device, significantly improving the drilling quality, greatly reducing unqualified air permeability sections on tipping paper, reducing material waste and improving the production efficiency.
Description
Technical field
The utility model relates to optical instrument, is specifically related to the polarising means of CO2 laser drilling device.
Background technology
Cigarette ventilation dilution technology is a kind of important means of cigarette lowering harm and decreasing coking, and it can make, and most materials are effectively reduced in the cigarette smoke, and is particularly particularly evident for the higher gas phase composition effect of diffusion coefficient.The filter tip dilution rate of cigarette generally is to control by the hole drilling ventilation degree of tipping paper used on it, the researcher finds to adopt perforated tipping paper effectively to control cigarette and props up tar content, more effective to fall burnt technical development swift and violent as a kind of renewal for this technology, and the air permeability size of perforated tipping paper then directly influences the size that cigarette props up tar content.The tipping paper punching technology of development and utilization at present mainly comprises mechanical punching, electric spark-erosion perforation, laser boring etc., wherein laser boring is owing to have punching evenly, air permeability stability advantages of higher, become the mode that extensively adopts in the world, but laser belongs to polarised light, be generally 45 degree polarised lights, circularly polarized light or perpendicular linear polarization light, the laser beam that the CO2 laser instrument that adopts in tipping paper laser boring equipment produces is perpendicular linear polarization light, in punch device, change through its polarization direction after reflective mirror reflection and the polygonal mirror scanning light splitting, cause the different light paths energy of different scanning angle inconsistent, thereby cause punching inhomogeneous, the tipping paper air permeability changes, and causes the instability of tipping paper air permeability.Analyzing after deliberation and making the CO2 emergent ray is that punching is best to the laser tipping paper for the circularly polarized light of all directions amplitude unanimity.
Summary of the invention
The purpose of this utility model provides a kind of external hanging type, on the basis of not changing former CO2 laser structure form, not only easy for installation but also do not influence the CO2 laser beam polarising means of former CO2 laser beam quality, this polarising means can significantly improve working (machining) efficiency, optimizes crudy.
For achieving the above object, the utility model by the following technical solutions: the place installs polarising means additional at CO2 laser instrument light-emitting window, and polarising means comprises connecting plate 1, locking nut 2,3,45 ° of reflective mirrors of installing rack 4,45 ° of phase delay mirrors 5, cooling tube 6 and light path pipe 7.
With locking nut 2 itself and laser instrument casing are fixed around the connecting plate 1, be provided with a through hole over against laser instrument light-emitting window place.
Installing rack 3 is one and has two groups of opposite faces at least, and opposite face is provided with the hollow prism of light hole, one group of opposite face is provided with incidence hole and light hole, incidence hole is corresponding with through hole on the connecting plate 1, the one side that is provided with incidence hole is parallel to each other with the one side that is provided with light hole and is vertical with the light of laser instrument light-emitting window, and light hole overlaps with light path pipe 7 centers of circle.
Another group is respectively equipped with light with the laser instrument light-emitting window on opposite face and is first installing hole of 45 and is second installing hole of 45 with light path pipe 7, two installing hole place faces are parallel to each other, 45 ° of reflective mirrors 4 are installed in first installing hole, and the center of circle is positioned on the center line of light-emitting window light; 45 ° of phase delay mirrors 5 are installed in second installing hole, and the center of circle is at the intersection point place of reflection ray and light path pipe 7 extended lines of 45 ° of reflective mirrors 4; 45 ° of reflective mirror 4 light reflected shine on 45 ° of phase delay mirrors 5 along the direction that is 135 ° of angles with light-emitting window light, penetrate from light path pipe 7 after by 45 ° of phase delay mirrors 5 light being reflected into the direction identical with light-emitting window light again.
CO2 laser emitting light beam is perpendicular linear polarization light, linearly polarized light at 45 after 4 reflections of 45 ° of reflective mirrors, and outgoing behind 45 ° of phase delay mirrors again becomes circularly polarized light, enters laser drilling system.
In this polarising means, 45 ° of phase delay mirror leading indicator parameters are as follows:
Be equipped with cooling tube 6 at 45 ° of reflective mirrors 4 and 45 ° of phase delay mirrors 5, be used for the eyeglass of heating is cooled off.
First installing hole and second installing hole that 45 ° of reflective mirrors 4 and 45 ° of phase delay mirrors 5 are installed are provided with adjustment screw 8, when 45 ° of reflective mirrors 4 and 45 ° of phase delay mirrors 5 are installed, can carry out fine adjustment to its position by adjustment screw 8, be strict miter angle with the light that guarantees 45 ° of reflective mirrors 4 and laser instrument light-emitting window, and the center of circle is positioned on the center line of light inlet light; 45 ° of phase delay mirrors 5 and light path pipe are strict miter angle, and the center of circle is positioned on the reflection ray of 45 ° of reflective mirrors 4 and the intersection point place of light path pipe 7 extended lines.
Described installing rack 3 can be hollow quadrangular or six prisms that light hole is arranged.
The beneficial effects of the utility model are as follows:
1. install polarising means additional at CO2 laser instrument light-emitting window place, laser beam is become circularly polarized light, reduce laser energy loss in running, improve laser beam quality and laser stability, laser punches through after the beam splitting system, makes the punching hole shape circular partially, thereby improves tipping paper punching hole shape quality, improve air permeability stability, improve laser boring production efficiency.
2. polarising means described in the utility model is external hanging type, and on the basis of not changing former CO2 laser structure form, not only easy for installation but also do not influence former CO2 laser beam quality, this polarising means is the inclined to one side system that rises of a circularly polarized light.
3. the utility model can change the linear polarization characteristic of former CO2 laser emitting light beam, makes it obtain all directions amplitude unanimity, and the circularly polarized light of energy coincidence can significantly improve working (machining) efficiency, optimizes crudy.
4. installing rack 3 is that an opposite face is parallel in twos, and one group of opposite face and another group opposite face are the prism of miter angle, and installing hole is provided with adjustment screw, can guarantee that 45 ° of reflective mirrors 4 and the light of laser instrument light-emitting window are the miter angle of strictness, and the center of circle is positioned on the center line of light inlet light; 45 ° of phase delay mirrors 5 and light path pipe are strict miter angle, and the center of circle is positioned on the center line of light path pipe.
5. obviously improve by drilling quality behind the utility model polarising means, greatly reduce the situation of defective air permeability section on the tipping paper, reduce waste of material, enhance productivity, can reduce material cost greatly.
Description of drawingsFig. 1 is the utility model polarising means perspective view.
Fig. 2 is 45 ° of phase delay mirror installation site schematic diagrames in the polarising means described in the utility model.
Fig. 3 is the utility model optical principle schematic diagram.
Among the figure: connecting plate 1, locking nut 2,4,45 ° of phase delay mirrors 5 of 3,45 ° of reflective mirrors of installing rack, cooling tube 6, light path pipe 7, adjustment screw 8.
The specific embodiment
Below in conjunction with accompanying drawing and explanation the utility model is further specified.
Embodiment 1:A kind of polarising means of laser drilling device is to install polarising means additional at CO2 laser instrument light-emitting window place, and polarising means comprises connecting plate 1, locking nut 2,3,45 ° of reflective mirrors of installing rack 4,45 ° of phase delay mirrors 5, cooling tube 6 and light path pipe 7.
With locking nut 2 itself and laser instrument casing are fixed around the connecting plate 1, be provided with a through hole over against laser instrument light-emitting window place.
Installing rack 3 is hollow quadrangulars that an opposite face is provided with light hole, one group of opposite face is provided with incidence hole and light hole, incidence hole is corresponding with through hole on the connecting plate 1, the one side that is provided with incidence hole is parallel to each other with the one side that is provided with light hole and is vertical with the light of laser instrument light-emitting window, and light hole overlaps with light path pipe 7 centers of circle.
Another group is respectively equipped with light with the laser instrument light-emitting window on opposite face and is first installing hole of 45 and is second installing hole of 45 with light path pipe 7, two installing hole place faces are parallel to each other, 45 ° of reflective mirrors 4 are installed in first installing hole, and the center of circle is positioned on the center line of light-emitting window light; 45 ° of phase delay mirrors 5 are installed in second installing hole, and the center of circle is at the intersection point place of reflection ray and light path pipe 7 extended lines of 45 ° of reflective mirrors 4; 45 ° of reflective mirror 4 light reflected shine on 45 ° of phase delay mirrors 5 along the direction that is 135 ° of angles with light-emitting window light, penetrate from light path pipe 7 after by 45 ° of phase delay mirrors 5 light being reflected into the direction identical with light-emitting window light again.
In this polarising means, 45 ° of phase delay mirror leading indicator parameters are as follows:
Be equipped with cooling tube 6 at 45 ° of reflective mirrors 4 and 45 ° of phase delay mirrors 5, be used for the eyeglass of heating is cooled off.
Embodiment 2
Difference from Example 1 is: installing rack 3 is hollow six prisms that an opposite face is provided with light hole.
Difference from Example 1 is: first installing hole and second installing hole that 45 ° of reflective mirrors 4 and 45 ° of phase delay mirrors 5 are installed are provided with adjustment screw 8, when 45 ° of reflective mirrors 4 and 45 ° of phase delay mirrors 5 are installed, can carry out fine adjustment to its position by adjustment screw 8, be strict miter angle with the light that guarantees 45 ° of reflective mirrors 4 and laser instrument light-emitting window, and the center of circle is positioned on the center line of light inlet light; 45 ° of phase delay mirrors 5 and light path pipe are strict miter angle, and the center of circle is positioned on the reflection ray of 45 ° of reflective mirrors 4 and the intersection point place of light path pipe 7 extended lines.
Claims (3)
1. the polarising means of a laser drilling device, it is characterized in that, install polarising means additional in CO2 laser instrument exit, polarising means comprises connecting plate (1), locking nut (2), installing rack (3), 45 ° of reflective mirrors (4), 45 ° of phase delay mirrors (5), cooling tube (6) and light path pipe (7);
With locking nut (2) itself and laser instrument casing are fixed around the connecting plate (1), be provided with a through hole over against laser instrument light-emitting window place;
Installing rack (3) is one and has two groups of opposite faces at least, and opposite face is provided with the hollow prism of light hole, one group of opposite face is provided with incidence hole and light hole, incidence hole is corresponding with through hole on the connecting plate (1), the one side that is provided with incidence hole is parallel to each other with the one side that is provided with light hole and is vertical with the light of laser instrument light-emitting window, and light hole overlaps with light path pipe (7) center of circle;
Another group is respectively equipped with light with the laser instrument light-emitting window on opposite face and is first installing hole of 45 and is second installing hole of 45 with light path pipe (7), two installing hole place faces are parallel to each other, 45 ° of reflective mirrors (4) are installed in first installing hole, and the center of circle is positioned on the center line of light-emitting window light; 45 ° of phase delay mirrors (5) are installed in second installing hole, the center of circle is at the intersection point place of reflection ray and light path pipe (7) extended line of 45 ° of reflective mirrors (4), 45 ° of reflective mirrors (4) light reflected shines on 45 ° of phase delay mirrors (5) along the direction that is 135 ° of angles with light-emitting window light, penetrates from light path pipe (7) after by 45 ° of phase delay mirrors (5) light being reflected into the direction identical with light-emitting window light again;
CO2 laser emitting light beam is perpendicular linear polarization light, linearly polarized light at 45 after 45 ° of reflective mirrors (4) reflection, and outgoing behind 45 ° of phase delay mirrors again becomes circularly polarized light, enters laser drilling system;
In this polarising means, 45 ° of phase delay mirror leading indicator parameters are as follows:
Being provided with cooling tube (6) at 45 ° of reflective mirrors (4) and 45 ° of phase delay mirrors (5) cools off the eyeglass of heating.
2. the polarising means of laser drilling device according to claim 1 is characterized in that, described installing rack (3) can be hollow quadrangular or six prisms with light hole.
3. the polarising means of laser drilling device according to claim 1 and 2 is characterized in that, first installing hole and second installing hole that 45 ° of reflective mirrors (4) and 45 ° of phase delay mirrors (5) are installed are provided with adjustment screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320215818 CN203171138U (en) | 2013-04-26 | 2013-04-26 | Polarization device of laser drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320215818 CN203171138U (en) | 2013-04-26 | 2013-04-26 | Polarization device of laser drilling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171138U true CN203171138U (en) | 2013-09-04 |
Family
ID=49067891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320215818 Withdrawn - After Issue CN203171138U (en) | 2013-04-26 | 2013-04-26 | Polarization device of laser drilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203171138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192179A (en) * | 2013-04-26 | 2013-07-10 | 云南玉溪水松纸厂 | Polarization device of laser drilling equipment |
-
2013
- 2013-04-26 CN CN 201320215818 patent/CN203171138U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192179A (en) * | 2013-04-26 | 2013-07-10 | 云南玉溪水松纸厂 | Polarization device of laser drilling equipment |
| CN103192179B (en) * | 2013-04-26 | 2015-06-17 | 云南玉溪水松纸厂 | Polarization device of laser drilling equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |