CN103832098A - Method and system for detecting laser marking - Google Patents
Method and system for detecting laser marking Download PDFInfo
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- CN103832098A CN103832098A CN201410103277.7A CN201410103277A CN103832098A CN 103832098 A CN103832098 A CN 103832098A CN 201410103277 A CN201410103277 A CN 201410103277A CN 103832098 A CN103832098 A CN 103832098A
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Abstract
The invention provides a method for detecting laser marking. According to the method, the detection effect is good, the error rate is low, and objects which can not be marked and objects which are not marked can be found conveniently. The method comprises the following steps that firstly, objects entering a laser marking work zone are shot through a high-speed camera and image signals are transmitted to a control system; secondly, when marking operation can be conducted according to the inclination angles of the objects, the temperature of a marking zone of the objects is detected through a temperature detection device; thirdly, when temperature detection can not meet the requirement, the image signals transmitted by the high-speed camera are received and counted by the control system continuously, meanwhile, an alarm device gives an alarm, and a conveying device is stopped; when temperature detection meets the requirement, marking operation is finished and the objects enter the next procedure. The invention further provides a system for detecting laser marking. The system comprises the high-speed camera arranged above the conveying device, a laser marking device, the temperature detection device, the alarm device and the control system.
Description
Technical field
The present invention relates to a kind of laser marking detection method and detection system.
Background technology
Laser marking is the permanent marker that cannot wipe, and it is to be connected on body surface moment high-temperature gasification by laser straight to form, and without can differentiating by naked eyes by any aid, is convenient to consumer's identification.And no material consumption, safeguards more convenient.Laser marking machine has been broken through normalization and the unicity of traditional ink code spraying technology, create a kind of brand-new stamp mode, the characteristic of product and the otherness of brand are given prominence to, promote the competitiveness of product in day by day fierce market, simultaneously for shortening updating and upgrading of a product cycle, flexible production provide strong instrument.
In bar cigarette production field, conventionally all need to carry out laser marking operation on cigarette shell surface, and this laser marking often need to operate in the flow package of bar cigarette.Due in order to increase work efficiency, conventionally the flow package of bar cigarette is the process of a high speed, bar cigarette is about 6/second by the speed of laser marking machine, and spacing, attitude, speed while carrying due to bar cigarette tends to because advancing at a high speed changes, this has also just caused laser marking machine cannot carry out exactly mark operation, even can cause the target situation of not stamping.Particularly some special packagings, as the external packing of pure color, this just makes in identification more difficult, and even without stamping mark, also religion is difficult to check out, needs the larger human and material resources of cost to reduce check.More special packaging, the for example external packing of white, after laser marking, be naked eyes almost illegible substantially, this just makes how to confirm that on it, having laser coding becomes a difficult problem, and the correct position that more cannot carry out this kind of laser coding whether, whether coding complete.
Summary of the invention
Therefore, for above-mentioned problem, the present invention propose a kind of detect effective, error rate is low, facilitate the searching cannot mark article and do not stamp laser marking detection method and the detection system of the article of code.
For achieving the above object, the present invention has adopted following technical scheme: a kind of laser marking detection method, comprises the following steps:
The first step, utilizes high-speed camera to take the article that enter laser marking workspace in conveying device, and picture signal is passed to control system;
Second step, confirms when control system the angle that article tilt and can carry out mark operation, signal is passed to temperature-detecting device by control system, and temperature-detecting device carries out temperature detection to the mark region of article;
The 3rd step, when temperature detection is not passed through, signal is passed to control system by temperature-detecting device, control system continues to receive the picture signal transmitting of high-speed camera, and it is counted, in this while control system, signal is passed to warning device, warning device is reported to the police and also conveying device is shut down; When temperature detection is passed through, mark completes, and article enter next flow process.
Further, in described the 3rd step, the scope of temperature detection is 80 °～500 °.
Further; in described second step; confirm when control system the angle that article tilt and cannot carry out mark operation; control system continues to receive the picture signal transmitting of high-speed camera; and it is counted; in this while control system, signal is passed to warning device, warning device is reported to the police and also conveying device is shut down.
A kind of laser marking detection system, comprise high-speed camera, laser mark printing device, temperature-detecting device, warning device and the control system of being located at conveying device top, described high-speed camera, laser mark printing device, temperature-detecting device are according to streamline setting, the detection mouth of described temperature-detecting device is aimed at laser mark printing device and on article, is beaten target area, and described high-speed camera, temperature-detecting device, warning device are connected with control system respectively.
By adopting aforementioned techniques scheme, the invention has the beneficial effects as follows: compared with existing hand inspection, this laser marking detection method can be identified article automatically, to be confirmed whether to be suitable for mark, when article are suitable for mark, in carrying out mark, can carry out temperature detection to mark region, only have temperature to reach standard and could pass through smoothly, complete laser marking flow process; And in the time that temperature detection does not reach standard, conveying device will be shut down, warning device is reported to the police simultaneously, and high-speed camera counts to identify the position of these article.Utilize this method can greatly save human resources, increase work efficiency, particularly for the mark operation in some pure color packagings, particularly the mark operation in white packaging can be played good detection effect, make up the defect of naked eyes None-identifieds, the fault rate of mark is greatly reduced, further, when article are because the angle tilting is too large, to such an extent as to while being unsuitable for mark, control system continues to receive the picture signal transmitting of high-speed camera, and it is counted, in this while control system, signal is passed to warning device, warning device is reported to the police and conveying device is shut down, this is because the speed of conveying device is too fast, if stopping immediately not only machine can damage rigid, the article that are positioned in conveying device also can be at random, to such an extent as to cannot carry out mark, so the process that conveying device is shut down is the process of a slow reduction of speed, even if this has also just caused the attitude of confirming these article to be unsuitable for mark, these article segment distance of also can walking, can find out easily this article by counting.
Brief description of the drawings
Fig. 1 is a kind of system block diagram of laser marking detection system.
Detailed description of the invention
Now the present invention is further described with detailed description of the invention by reference to the accompanying drawings.
The present embodiment provides a kind of laser marking detection method, comprises the following steps:
The first step, utilizes high-speed camera to take the article that enter laser marking workspace in conveying device, and picture signal is passed to control system;
Second step, confirms when control system the angle that article tilt and can carry out mark operation, signal is passed to temperature-detecting device by control system, and temperature-detecting device carries out temperature detection to the mark region of article;
The 3rd step, when temperature detection is not passed through, signal is passed to control system by temperature-detecting device, control system continues to receive the picture signal transmitting of high-speed camera, and it is counted, in this while control system, signal is passed to warning device, warning device is reported to the police and also conveying device is shut down; When temperature detection is passed through, mark completes, and article enter next flow process.
Further, in described the 3rd step, the scope of temperature detection is 80 °～500 °.
Further; in described second step; confirm when control system the angle that article tilt and cannot carry out mark operation; control system continues to receive the picture signal transmitting of high-speed camera; and it is counted; in this while control system, signal is passed to warning device, warning device is reported to the police and also conveying device is shut down.
With reference to figure 1, it is a kind of laser marking detection system of utilizing above-mentioned detection method set, comprise high-speed camera, laser mark printing device, temperature-detecting device, warning device and the control system of being located at conveying device top, described high-speed camera, laser mark printing device, temperature-detecting device are according to streamline setting, the detection mouth of described temperature-detecting device is aimed at laser mark printing device and on article, is beaten target area, and described high-speed camera, temperature-detecting device, warning device are connected with control system respectively.
Above-mentioned temperature-detecting device is infrared temperature checkout gear, is the existing equipment that can buy on market, and its structure and function have been known technology, are not described in detail at this; Above-mentioned warning device is a generalized concept, and it can be by voice guard, light crossing-signal, form with the power switch of conveying device, and the parts of also can possess warning function by other, closing down conveying device function form; Above-mentioned warning device, high-speed camera, laser mark printing device are the existing equipment that can buy on market, and its structure and function have been known technology, are not described in detail at this.
Compared with existing hand inspection, this laser marking detection method can be identified article automatically, to be confirmed whether to be suitable for mark, when article are suitable for mark, in carrying out mark, can carry out temperature detection to mark region, only having temperature to reach standard could pass through smoothly, completes laser marking flow process; And in the time that temperature detection does not reach standard, conveying device will be shut down, warning device is reported to the police simultaneously, and high-speed camera counts to identify the position of these article.Utilize this method can greatly save human resources, increase work efficiency, particularly for the mark operation in some pure color packagings, particularly the mark operation in white packaging can be played good detection effect, make up the defect of naked eyes None-identifieds, the fault rate of mark is greatly reduced, further, when article are because the angle tilting is too large, to such an extent as to while being unsuitable for mark, control system continues to receive the picture signal transmitting of high-speed camera, and it is counted, in this while control system, signal is passed to warning device, warning device is reported to the police and conveying device is shut down, this is because the speed of conveying device is too fast, if stopping immediately not only machine can damage rigid, the article that are positioned in conveying device also can be at random, to such an extent as to cannot carry out mark, so the process that conveying device is shut down is the process of a slow reduction of speed, even if this has also just caused the attitude of confirming these article to be unsuitable for mark, these article segment distance of also can walking, can find out easily this article by counting.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (4)
1. a laser marking detection method, is characterized in that, comprises the following steps:
The first step, utilizes high-speed camera to take the article that enter laser marking workspace in conveying device, and picture signal is passed to control system;
Second step, confirms when control system the angle that article tilt and can carry out mark operation, signal is passed to temperature-detecting device by control system, and temperature-detecting device carries out temperature detection to the mark region of article;
The 3rd step, when temperature detection is not passed through, signal is passed to control system by temperature-detecting device, control system continues to receive the picture signal transmitting of high-speed camera, and it is counted, in this while control system, signal is passed to warning device, warning device is reported to the police and also conveying device is shut down; When temperature detection is passed through, mark completes, and article enter next flow process.
2. a kind of laser marking detection method according to claim 1, is characterized in that: in described the 3rd step, the scope of temperature detection is 80 °～500 °.
3. a kind of laser marking detection method according to claim 1; it is characterized in that: in described second step; confirm when control system the angle that article tilt and cannot carry out mark operation; control system continues to receive the picture signal transmitting of high-speed camera; and it is counted; in this while control system, signal is passed to warning device, warning device is reported to the police and also conveying device is shut down.
4. a laser marking detection system, it is characterized in that: comprise high-speed camera, laser mark printing device, temperature-detecting device, warning device and the control system of being located at conveying device top, described high-speed camera, laser mark printing device, temperature-detecting device are according to streamline setting, the detection mouth of described temperature-detecting device is aimed at laser mark printing device and on article, is beaten target area, and described high-speed camera, temperature-detecting device, warning device are connected with control system respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410103277.7A CN103832098A (en) | 2014-03-19 | 2014-03-19 | Method and system for detecting laser marking |
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| CN201410103277.7A CN103832098A (en) | 2014-03-19 | 2014-03-19 | Method and system for detecting laser marking |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827445A (en) * | 2016-03-30 | 2016-08-03 | 深圳市创鑫激光股份有限公司 | Laser marking machine monitoring method, device and system |
| CN106945409A (en) * | 2017-03-13 | 2017-07-14 | 京东方科技集团股份有限公司 | A kind of marking machine and its alignment method |
| CN114682938A (en) * | 2020-12-31 | 2022-07-01 | 北京中烟信息技术有限公司 | Laser coding thermal-sensing monitoring system for cigarette carton |
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| US20030142346A1 (en) * | 2001-11-22 | 2003-07-31 | Seiko Epson Corporation | IC chip, print apparatus, and heat generation warning method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827445A (en) * | 2016-03-30 | 2016-08-03 | 深圳市创鑫激光股份有限公司 | Laser marking machine monitoring method, device and system |
| CN106945409A (en) * | 2017-03-13 | 2017-07-14 | 京东方科技集团股份有限公司 | A kind of marking machine and its alignment method |
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| CN114682938A (en) * | 2020-12-31 | 2022-07-01 | 北京中烟信息技术有限公司 | Laser coding thermal-sensing monitoring system for cigarette carton |
| CN114682938B (en) * | 2020-12-31 | 2023-12-19 | 北京中烟信息技术有限公司 | Cigarette laser coding thermal sensing monitoring system |
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Application publication date: 20140604 |