CN102500927A - Optical vibrating mirror type laser tablet drilling method - Google Patents
Optical vibrating mirror type laser tablet drilling method Download PDFInfo
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- CN102500927A CN102500927A CN2011102994253A CN201110299425A CN102500927A CN 102500927 A CN102500927 A CN 102500927A CN 2011102994253 A CN2011102994253 A CN 2011102994253A CN 201110299425 A CN201110299425 A CN 201110299425A CN 102500927 A CN102500927 A CN 102500927A
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Abstract
The invention relates to a tablet drilling method, in particular to an optical vibrating mirror type laser tablet drilling method. The optical vibrating mirror type laser tablet drilling method is characterized in that: laser is converged by a focusing unit on a surface of a moving tablet on an assembly line for drilling a flying marker after propagation direction of the laser is changed by an optical vibrating mirror system, a spiral filling graph is formed on the flying marker, and a reverse displacement compensation quantity of the drilling at the same time as the flying marker is drilled according to an actual speed of the assembly line, so that the structure of the spiral filling graph can also be ensured during the high-speed movement. The optical vibrating mirror type laser tablet drilling method can be used for solving the problems of poor shape of a hole and incapability of accurately positioning a drilling position.
Description
Technical field
The present invention relates to the medicine drilling method, be specifically related to a kind of optics mirror-vibrating laser tablet drilling method.
Background technology
Galvanometer is a kind of good vector scan device.It is a kind of special swing motor, and basic principle is that hot-wire coil produces moment in magnetic field, but different with electric rotating machine; Method through mechanical knob spring or electronics on its rotor is added with reseting torque, and size is directly proportional with the angle that rotor departs from the equilbrium position, when coil passes to certain electric current and during angle that rotor deflects certain; Electromagnetic torque and restoring moment equal and opposite in direction; So can not rotate as common electric machine, can only deflection, deflection angle is directly proportional with electric current; The same with galvanometer, so galvanometer is galvanometer scanning galvanometer (galvanomet ric scanner) again.
Its professional term of scanning galvanometer is called high-velocity scanning galvanometer Galvo scanning system.So-called galvanometer; Can be referred to as the ammeter meter again, its mentality of designing follows the method for designing of ammeter fully, and eyeglass has replaced indicator; And the signal of probe by computer-controlled-5V-5V or-direct current signal of 10V-+10V replaces, to accomplish predetermined actions.Identical with the rotary mirror type scanning system; This typical control system has adopted a foldback mirror; Different is that the stepper motor that drives this cover eyeglass is replaced by servomotor, in this cover control system; The use of position sensor and the mentality of designing of negative feedback loop have further guaranteed the precision of system, and the sweep speed of whole system and repetitive positioning accuracy reach a new level
The effect of tablet punching: slowly-releasing and controlled release preparation are the important directions of domestic and international medical industry development since the construction cycle short, need less investment, economic risk is low, technology content increases and added value significantly advantage such as increase more and more valued by pharmaceuticals industry.Slow, controlled release preparation is divided into oral sustained-release preparation, injection sustained-release preparation, implants sustained-release preparation by method of administration.Oral sustained-release preparation is divided into oral slow-releasing preparation, controlled release formulations for oral administration." Chinese pharmacopoeia version in 2005 is with the strict differentiation of being defined as of slowly-releasing and controlled release preparation.Sustained release preparation means oral drugs in the regulation solvent, and non-lentamente on request constant release, and medication every day number of times and corresponding general formulation comparison will reduce once at least or prolong the blanking time of medication to some extent.Controlled release preparation means oral drugs in the regulation solvent, and slow constant speed or near constant release, and medication every day number of times on request and corresponding ordinary preparation relatively will reduce once or prolong the blanking time of medication to some extent at least.Because controlled release preparation makes medicine discharge near " 0 " level pharmacokinetics as far as possible; It is the medicine that the unit interval discharges fixed amount; It is predictable that the release of medicine is had more, do not receive gastrointestinal tract dynamia, pH value, patient age and whether with the influence of food with factors such as clothes.In the evolution of pharmaceutical preparation, belonging to the third generation, is the leading leading formulation of present controlled release drug system, advanced controlled-release administrating system, and curative effect is high, side effect is little, safe ready, the welcome of being cured very much the patient.The controlled release oral dosage formulations of domestic-developed mainly contains tablet and capsule at present; The particularly research and development of Dospan; Especially the Oros sheet is because of its particular structural and release principle, studies extremely outstandingly, utilizes the characteristics of laser beam high concentration on room and time; On tablet, realize laser boring, make medicine can be from small delivery aperture the evenly release of constant speed.Preparation controlled release preparation choice drug: antiarrhymic, antianginal drug, depressor, antihistamine, bronchodilators, antasthmatic, analgesic-antipyretic, Psychotolytic, anti-ulcer agent.
As shown in Figure 1; Existing laser drilling device is to use the pulse laser beam to punch; Giving the bright dipping of model laser instrument through photoelectric sensor induction tablet, the form of bright dipping is to focus on the tablet time of staying with single beam to carry out the sky mark, and this hole knockout has following defective:
1, but the method in adjustment aperture is to control the adjusting this method of spot diameter and can't adjust accurately its bore dia through changing laser focal, and laser energy has corresponding variation in the adjustment bore dia.
2, when high-speed motion punches, the circularity in hole is along with the direction of motion significantly is deformed into ellipse.
3, at the edge of getting the hole apparent in view projection is arranged.Main cause is the characteristic because of laser facula, and the energy at hot spot edge curls its tablet film thawing less than the center so can make the edge in hole produce melting state.
4, when actual flow waterline velocity variations, can't accurately locate the punch position of tablet.
Summary of the invention
The object of the invention proposes a kind of optics mirror-vibrating laser tablet drilling method exactly, and this method can solve bad, the accurate problem of positional punch position of pass.
The present invention is following for the technical scheme that realizes the foregoing invention purpose: a kind of optics mirror-vibrating laser tablet drilling method; Its difference is; Said laser changes behind the direction of propagation by focusing unit via the optics galvanometer system again and converges in the mark punching of flying of motion tablet surface on the streamline; The figure of said flight mark punching is the spiral pattern filling, in the punching of flight mark, sets the reverse bit shift compensation amount of punching according to actual flow waterline speed and makes its figure in high-speed motion, still guarantee spiral pattern filling structure.
By above scheme, the round screw thread line of said spiral pattern filling for being made up of continuous lines controlled the length of laser action time through the distance between centers of tracks of adjustment round screw thread line, thereby controls the punching degree of depth and punching diameter.
By above scheme, said spiral pattern filling is a symmetric figure.The contrast prior art, beneficial effect of the present invention is following: replace single beam to punch with figure, can be to the diameter in hole, the degree of depth in hole has the adjustment of quantification.And passed through the laser marking on the fly principle make its to simple linear structure figure move mend long high speed direction through galvanometer mend long, can solve punching pass on the tablet in high-speed cruising because the cause of tablet motion produces the problem of gross distortion.
And this programme can make it to the figure accurate localization, the speed of laser labelling figure, and laser power, laser frequency can accurately be set.So can be to the position in hole, the diameter in hole, the degree of depth in hole is controlled accurately.Major advantage of the present invention is following:
1, can accurately adjust the pass size, the punching degree of depth;
3, can realize symmetric figure hole mark;
4, through the accurate locating hole mark position of optics galvanometer;
5, improve online punching speed, not limited action time by the hole;
6, solve the problem of high-speed motion bore deformation and skew;
7, multi-object punches simultaneously.
Description of drawings
Fig. 1 is the schematic diagram that existing laser drilling device uses the pulse laser beam to punch;
Fig. 2 is a drilling method schematic diagram of the present invention;
Fig. 3 is the present invention's pictorial diagram of punching.
The specific embodiment
Further specify the specific embodiment of the invention below in conjunction with accompanying drawing.
Like Fig. 2, shown in Figure 3; The present invention provides a kind of optics mirror-vibrating laser tablet drilling technology; Said laser changes behind the direction of propagation by focusing unit via the optics galvanometer system again and converges in the mark punching of flying of motion tablet surface on the streamline; The figure of said flight mark punching is the spiral pattern filling, in the punching of flight mark, sets the reverse bit shift compensation amount of punching according to actual flow waterline speed and makes its figure in high-speed motion, still guarantee spiral pattern filling structure.
Preferably, the round screw thread line of said spiral pattern filling for being made up of continuous lines controlled the length of laser action time through the distance between centers of tracks of adjustment round screw thread line, thereby controls the punching degree of depth and punching diameter.
Specifically, said spiral pattern filling can be symmetric figure.
Above content is to combine concrete embodiment to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (3)
1. optics mirror-vibrating laser tablet drilling method; It is characterized in that; Said laser changes behind the direction of propagation by focusing unit via the optics galvanometer system again and converges in the mark punching of flying of motion tablet surface on the streamline; The figure of said flight mark punching is the spiral pattern filling, in the punching of flight mark, sets the reverse bit shift compensation amount of punching according to actual flow waterline speed and makes its figure in high-speed motion, still guarantee spiral pattern filling structure.
2. optics mirror-vibrating laser tablet drilling method as claimed in claim 1; It is characterized in that: the round screw thread line of said spiral pattern filling for constituting by continuous lines; Distance between centers of tracks through adjustment round screw thread line is controlled the length of laser action time, thereby controls the punching degree of depth and punching diameter.
3. according to claim 1 or claim 2 optics mirror-vibrating laser tablet drilling method, it is characterized in that: said spiral pattern filling is a symmetric figure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110299425.3A CN102500927B (en) | 2011-09-30 | 2011-09-30 | Optical vibrating mirror type laser tablet drilling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110299425.3A CN102500927B (en) | 2011-09-30 | 2011-09-30 | Optical vibrating mirror type laser tablet drilling method |
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| CN102500927A true CN102500927A (en) | 2012-06-20 |
| CN102500927B CN102500927B (en) | 2015-01-14 |
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| CN201110299425.3A Active CN102500927B (en) | 2011-09-30 | 2011-09-30 | Optical vibrating mirror type laser tablet drilling method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108338A (en) * | 2015-09-30 | 2015-12-02 | 深圳市联赢激光股份有限公司 | Method for controlling laser welding |
| CN107848297A (en) * | 2015-09-02 | 2018-03-27 | 株式会社斯库林集团 | Tablet printing equipment and tablet printing process |
| CN109175714A (en) * | 2018-09-27 | 2019-01-11 | 江苏大学 | A kind of laser rotary-cut mark method on hard brittle material surface |
| CN114939733A (en) * | 2022-04-24 | 2022-08-26 | 武汉华工激光工程有限责任公司 | Laser processing method and device for improving quality of through hole of green ceramic chip |
| CN116038139A (en) * | 2023-03-30 | 2023-05-02 | 武汉华工激光工程有限责任公司 | Flight coding method and system for carrying out miniature code marking on silicon chip |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107848297A (en) * | 2015-09-02 | 2018-03-27 | 株式会社斯库林集团 | Tablet printing equipment and tablet printing process |
| CN105108338A (en) * | 2015-09-30 | 2015-12-02 | 深圳市联赢激光股份有限公司 | Method for controlling laser welding |
| CN109175714A (en) * | 2018-09-27 | 2019-01-11 | 江苏大学 | A kind of laser rotary-cut mark method on hard brittle material surface |
| CN114939733A (en) * | 2022-04-24 | 2022-08-26 | 武汉华工激光工程有限责任公司 | Laser processing method and device for improving quality of through hole of green ceramic chip |
| CN116038139A (en) * | 2023-03-30 | 2023-05-02 | 武汉华工激光工程有限责任公司 | Flight coding method and system for carrying out miniature code marking on silicon chip |
| CN116038139B (en) * | 2023-03-30 | 2023-07-14 | 武汉华工激光工程有限责任公司 | Flight coding method and system for carrying out miniature code marking on silicon chip |
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| CN102500927B (en) | 2015-01-14 |
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