CN107175942B - Laser anti-counterfeit device and method - Google Patents
Laser anti-counterfeit device and method Download PDFInfo
- Publication number
- CN107175942B CN107175942B CN201710339375.4A CN201710339375A CN107175942B CN 107175942 B CN107175942 B CN 107175942B CN 201710339375 A CN201710339375 A CN 201710339375A CN 107175942 B CN107175942 B CN 107175942B
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- Prior art keywords
- laser
- pattern
- micropore
- processing
- substrate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
- B41K3/36—Apparatus for stamping articles having integral means for supporting the articles to be stamped with means for deforming or punching the copy matter
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- Laser Beam Processing (AREA)
Abstract
The present invention provides a kind of laser anti-counterfeit device and method.The laser anti-counterfeit equipment includes at least: substrate supply unit, is transported to laser micropore processing unit for that will process substrate；The top of substrate supply unit is arranged in visual identifying system；The downstream of the substrate supply unit is arranged in inkless belling unit；Laser micropore processes unit, and the downstream of the inkless belling unit is arranged in；The downstream of the inkless belling unit is arranged in the laser processing roller；Laser processing device is arranged in right above the axis of the laser processing roller；Substrate collector unit, for compiling the substrate of completion of processing.Laser anti-counterfeit method is able to carry out the processing of laser micropore fixed pattern, and pattern processing can be determined by being able to carry out laser micropore.Laser anti-counterfeit method generates an a kind of vision security pattern collectively formed by the inkless belling pattern and the laser micropore pattern.
Description
Technical field
The present invention relates to print fields, and in particular to a kind of laser anti-counterfeit device and method, it is especially a kind of that laser is housed
It is micro- to carry out laser on the substrate of other valuable documents such as marketable securities, passport, coin for the printing equipment of capillary processing unit
The processing in hole.
Background technique
Currently, laser micropore anti-counterfeiting technology is well known, it is widely used in marketable securities, money, security card etc.
The production field of valuable document.In the prior art, Chinese patent CN100540331C related with laser micropore process equipment
A kind of printing equipment comprising laser micropore processing unit is provided, which contains intaglio printing unit and laser micropore adds
Two parts of work order member, laser micropore processing carry out during chain transmits paper.
The patented technology the prior art has at least the following problems:
1, it waves and deforms since substrate can be generated when transmitting on chain, machining accuracy is poor.
2, it due to there was only the positive dust exhaust of substrate, thus is not filled to the dust treatment in laser micropore process is enough
Point, influence processing environment and the occupational health of operator.
3, laser micropore technique is single, not can be carried out the processing of changeable pattern.
Summary of the invention
The present invention provides a kind of laser anti-counterfeit device and method, single etc. to solve laser micropore machining accuracy difference and technique
Problem.
For this purpose, the present invention proposes that a kind of laser anti-counterfeit equipment, the laser anti-counterfeit equipment include at least:
Substrate supply unit, for substrate to be transported to laser micropore processing unit；
The top of substrate supply unit is arranged in visual identifying system, for the partial pattern printed on substrate into
Row is identified and is handled and realizes the signal exchange with laser micropore processing unit, and the visual identifying system includes at least one
Platform camera, signal processor and vision control system；
The downstream of the substrate supply unit is arranged in inkless belling unit, and the inkless belling unit includes at least: one
A plate cylinder and a printing roller；
Laser micropore processes unit, the downstream of the inkless belling unit is arranged in, the laser micropore processing unit is extremely
It less include: laser processing roller, laser processing device, laser processing control system and laser processing device driving device；
The downstream of the inkless belling unit is arranged in the laser processing roller, to the substrate in laser processing procedure into
Row is flattened and is fixed, while removing the flue dust that substrate backside is generated due to laser processing；
The laser processing device is arranged in right above the axis of the laser processing roller, the laser processing device packet
It includes: at least one set of laser head；Every group of laser head includes at least 1 discrete laser head, and the independent laser head is arranged at one
Be parallel to it is described laser processing cylinder axis sliding rail on, and the focal plane of the laser processing of laser head be respectively positioned on it is described swash
On the surface of light making roller surface printed substrate；
The laser processing control system is used to laser machine the generation of production signal, transmits and between the laser head
Distribution；
The driving device and the laser processing device are hinged, are the laser processing device in operating position and non-work
Make mutually to convert between position and power is provided；
Substrate collector unit, for compiling the substrate of completion of processing.
Further, the camera of the visual identifying system is to the wherein at least one small printed portions opened on big Zhang Jicai
Pattern is identified that then identified printed patterns are converted into a column character string, the vision control through the signal processor
The character string that the signal processor generates, camera are identified that the small position of printed patterns over the whole substrate of opening passes by system processed
Pass the laser processing control system；
Alternatively, the vision control system voluntarily generates character string according to the setting independent of camera and its open position is believed
Breath, then passes to the laser processing control system.
Further, the small partial pattern of opening that the visual identifying system is identified is that each small open is provided on big Zhang Jicai
And mutually different pattern.
Further, character string, camera identify and small start to print brush the laser processing control system based on the received
The Conduce Disciplinarian of pattern position over the whole substrate and the kinds of characters pre-seted generates n (n on entire big Zhang Jicai
>=1) a different location is small opens the one-to-one n kinds of characters string of pattern, and according to the different laser heads and big Zhang Jicai
It is above small to open corresponding position relationship, the processing signal of kinds of characters string is distributed into the different laser head, the laser head evidence
The processing signal received implements the processing of laser micropore.
Further, the discrete laser head in the laser processing device can exist along the laser processing cylinder axis direction
Axial location adjustment is carried out on the sliding rail.
Further, the focus for the laser beam that discrete laser head in the laser processing device generates can along perpendicular to
The laser processing cylinder axis direction carries out normal position adjustment.
Further, the discrete laser head in the laser processing device includes at least one smoke evacuation system, for removing
The flue dust generated in laser micropore process in substrate front.
Further, the laser processing roller is by drum shaft, barrel, barrel extrados and substrate transmission system five
Part is constituted, wherein the barrel is at least provided with an internal air cavity；The barrel has both ends of the surface, the barrel
An end face in both ends of the surface includes at least one end face aperture；At least one T-slot is provided on the barrel extrados；
Multiple lateral opening holes of the same size are provided on the barrel extrados.
Further, the laser processing roller end face aperture, air cavity and described inside the laser processing barrel
It is interconnected between multiple lateral opening holes on barrel extrados.
Further, it is fixedly connected by taper pin with attachment screw between the drum shaft and barrel.
Further, it is connected by the T-slot with fastening screw between the barrel and the barrel extrados,
And it can realize that the barrel extrados carries out position adjustment along the laser processing cylinder axis direction simultaneously.
Further, the laser anti-counterfeit equipment further includes at least one external air cavity, and the external air cavity swashs with described
Light making roller coaxial line is simultaneously fixedly installed, and is provided with the second aperture on the end face of the external air cavity.
Further, the external gas resonator end surface aperture is corresponding with the laser processing end face aperture of roller.
The present invention also proposes a kind of laser anti-counterfeit method, and using laser anti-counterfeit equipment, n on big Zhang Jicai is different small
Open position processes identical n micropore pattern (n >=1), i.e. progress laser micropore fixed pattern processing.
Further, in the laser micropore fixed pattern process, the inkless belling unit only carries out substrate biography
It passs.
The present invention also proposes a kind of laser anti-counterfeit method, and using laser anti-counterfeit equipment, n difference is small on big Zhang Jicai is opened
Position processes mutually different n micropore pattern (n >=1), i.e. progress laser micropore changeable pattern processing.
Further, the micropore changeable pattern is variable sequence number.
Further, it is fixed on whole big Zhang Jicai and small opens processed laser micropore changeable pattern and corresponding printing
There is unique corresponding relations between pattern.
Further, it is fixed on whole big Zhang Jicai and small opens processed laser micropore changeable pattern and corresponding printing
It is mutually completely the same between pattern.
Further, it is fixed on whole big Zhang Jicai and small opens processed laser micropore changeable pattern and corresponding printing
With the unique corresponding relationship of certain rule between pattern.
The present invention also proposes a kind of laser anti-counterfeit method, and using laser anti-counterfeit equipment, inkless pressure is successively carried out on substrate
The processing of convex pattern and laser micropore pattern generates one by the inkless belling pattern and the common structure of laser micropore pattern
At a kind of vision security pattern.
Further, the micropore for constituting the laser micropore pattern is located in the groove for constituting the inkless belling pattern.
The present invention is flattened and is fixed to the substrate in laser processing procedure using laser processing roller, overcomes tradition
Chain drive low precision the shortcomings that, machining accuracy is higher.In turn, paper control and cigarette of the present invention in laser processing procedure
Dirt processing method has carried out Curve guide impeller, can absorb the flue dust of substrate backside, it is ensured that the precision of laser micropore pattern processing,
Also ensure the occupational health of production environment.
Inkless belling pattern and laser micropore combination of patterns are generated a kind of new vision false proof process, to mention by the present invention
Height forges difficulty.
The present invention is able to carry out the processing of variable laser micropore security pattern, can be carried out according to itself a certain unique features pair
Stress light micropore pattern processing, this make processed laser micropore pattern have higher unicity and antifalsification.
Detailed description of the invention
Fig. 1 is the overall structure diagram of laser anti-counterfeit equipment of the invention；
Fig. 2 is the schematic perspective view of laser processing roller of the invention；
Fig. 3 is the schematic diagram of internal structure of laser processing roller of the invention；
Fig. 4 is the schematic view of the front view of laser processing device of the invention；
Fig. 5 is the side structure schematic view of laser processing device of the invention；
Fig. 6 is the schematic diagram that laser anti-counterfeit method of the invention processes fixed pattern；
Fig. 7 is the schematic diagram that laser anti-counterfeit method processing of the invention can determine pattern.
Drawing reference numeral explanation:
Inkless 3 laser micropore of belling unit of 1 substrate supply unit 2 processes 4 substrate collector unit of unit
11 paper guide, 12 paper feeding plate, 13 visual identifying system, 14 roller for paper feeding
21 plate cylinder, 22 impression cylinder, 23 paper-transferring tooth system, 24 first transfer roller, 25 second transfer roller
32 laser processing devices 33 laser machine the external air cavity of 34 driving device of roller 36
320 sliding rail, 321 laser head, 322 laser smoke evacuation system, 323 laser head installation frame 324 adjusts handwheel
325 laser head lever position indicators
330 drum shaft, 331 inside air cavity, 332 end face aperture, 333 barrel extrados, 334 substrate transmission system 335
337 fastening screw of T-type key, 338 barrel
41 substrate collecting bin, 42 substrate collecting bin
51 big Zhang Jicai 52 are small to open 53 micropore fixed pattern, 54 micropore changeable pattern
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
It is bright.
It is fixed it is an object of the present invention to provide a kind of paper in cylinder surface high-speed transfer or variable sharp
The device and method of light micropore pattern processing, to meet the high-precision such as marketable securities, money, valuable document, high imitative puppet pattern
The demand of processing.
As shown in Figure 1, laser anti-counterfeit equipment of the invention includes at least:
Substrate supply unit 1 is transported to laser micropore processing unit for that will process substrate；Processing substrate is, for example, to process
Substrate, paper or the medium of the valuable documents such as marketable securities, money, ID card；Substrate supply unit 1 includes in existing mature technology
Paper guide 11, paper feeding plate 12, roller for paper feeding 14 etc. it is outer, be additionally provided with a set of visual identifying system 13；
The downstream of the substrate supply unit 1 is arranged in inkless belling unit 2, is unrestricted intaglio printing, such as existing
There is common intaglio ink unit in well-known technique, can be used by way of non-ink supply；The inkless belling unit 2 to
It less include: the first transfer roller 24, printing roller 21, plate cylinder 22, paper tooth system 23 and the second transfer roller 25；
Laser micropore processes unit 3, and the downstream of the inkless belling unit 2 is arranged in, and carries out laser micropore processing, described
Laser micropore processing unit 3 includes at least: laser processing roller 33, laser machines control system and swashs laser processing device 32
The driving device 34 of optical machining device；" laser micropore processing " it will be appreciated that under the irradiation of high-energy light beam, printing element portion
Divide or all ablated, to form portion concave or perforation on base material thickness；
25 downstream of the second transfer roller of the inkless belling unit is arranged in the laser processing roller 33, passes through vacuum
Negative pressure is flattened and is fixed to the substrate in laser processing procedure, while the cigarette generated in drums inside laser processing is discharged
Dirt；
The laser processing device 32 is arranged in right above the axis of the laser processing roller, the laser processing device
32 include: at least one set of laser head；Every group of laser head includes at least 1 discrete laser head 321, as shown in Figure 4 and Figure 5,
The independent laser head 321 is arranged in one and is parallel on the sliding rail 320 of the laser processing cylinder axis, therefore,
Laser head 321 can set adjustment in the enterprising line position of the sliding rail 320 along the laser processing cylinder axis direction, can be changed
The processing of pattern, and the focal plane of the laser processing of laser head is respectively positioned on the surface of the laser processing cylinder surface printed substrate
On；Sliding rail 320 is arranged on laser head installation frame 323；
Visual identifying system 13 is arranged in substrate supply unit 1, when carrying out the processing of laser micropore changeable pattern, depending on
Feel that the partial pattern printed on 13 pairs of identifying system processing substrates is identified and handled and realized to add with the laser micropore
The signal exchange of work order member, the visual identifying system include at least a camera, signal processor and vision control system；Phase
Machine takes pictures to substrate, obtains printed patterns (including pattern or text information), the printing that signal processor identifies camera
Pattern is converted into a column character string, and the character string that the signal processor generates, camera are identified small open by vision control system
The position of printed patterns over the whole substrate passes to the laser processing control system, and the laser processing control system is used for
Generation, transmission and the distribution between the laser head of laser processing production signal；
The vision control system can also voluntarily generate character string and its open position letter according to setting (independent of camera)
Breath, then passes to the laser processing control system；
The driving device 34 and the laser processing device 32 are hinged, are the laser processing device 32 in operating position
Mutually conversion provides power between off-position；For example a pair of of the electric pushrod of driving device 34；34 one end of driving device is solid
It is scheduled on equipment wallboard, and is coaxially installed with driving motor；Two sides of its other end respectively with laser processing device 32 are connected,
When being laser machined, driving device 34 drives laser processing device setting in the operating position of laser processing, works as laser processing
The laser head of device 32 or the equipment corresponding position need to be serviced when, driving device driving laser processing device 34 be located at
The off-position of laser processing；
Delivery unit, also referred to as substrate collector unit 4, there are two substrate collecting bins, respectively substrate collecting bin 41 and base for tool
Material collecting bin 42, (but two are not limited to, and setting can be increased and decreased according to production technology demand) it is used for the substrate of completion of processing
It compiles.
Further, the camera of the visual identifying system 13 on big Zhang Jicai 51 it is a certain it is small open 52 printed portions
Pattern is identified that the then described identified printed patterns are converted into a column character string, the view through the signal processor
Feel that control system identifies character string that the signal processor generates, camera and small opens the position of printed patterns over the whole substrate
It sets and passes to the laser processing control system.By the identification of visual identifying system 13, information processing and information transmitting, laser
Control system for processing is controlled position and the movement of laser processing device, can carry out the processing of changeable pattern.
Further, the vision control system can also voluntarily be generated according to setting (independent of camera) character string and
Its open position information, then passes to laser processing control system.
Further, character string, camera identify and small start to print brush the laser processing control system based on the received
The production law of pattern position over the whole substrate and the kinds of characters pre-seted generates n (n on entire big Zhang Jicai
>=1) a different location is small opens a kinds of characters string of the one-to-one n of pattern (n >=1), and according to the different laser heads and greatly
Zhang Jicai it is upper it is small open corresponding position relationship, the processing signal of kinds of characters string is distributed into the different laser head, it is described to swash
Shaven head implements the processing of laser micropore according to the processing signal received, forms micropore fixed pattern 53.In such manner, it is possible in real time
According to desired technique, the processing of pattern is fixed.Further, it is also possible to carry out the processing of laser micropore changeable pattern 54.
Further, as shown in Figure 4 and Figure 5, the discrete laser head 321 in the laser processing device can be along the laser
Making roller axis direction sets adjustment in the enterprising line position of the sliding rail 320, and position Adjustment precision is usually less than 0.5mm,
Preferably 0.1mm.Adjustment handwheel 325 and laser head lever position indicator 324, adjustment are installed on laser head installation frame 323
Handwheel 325 adjusts laser head 321 using adjustment handwheel 325 when adjustment and is sliding rail by being spirally connected or be clamped connection laser head 321
It is moved on road 320, laser head lever position indicator 324 shows the position of laser head 321, and Adjustment precision is high.
In such manner, it is possible to meet axial location variation of the laser head 321 along laser processing cylinder axis direction, and adjust essence
Degree is not less than 0.5mm, and preferably 0.1mm can satisfy the needs of the processing of changeable pattern.
Further, the focus for the laser beam that discrete laser head in the laser processing device generates can along perpendicular to
The laser processing cylinder axis direction carries out position adjustment, and Adjustment precision is not more than 0.5mm, preferably 0.1mm.In such manner, it is possible to
Meet laser head 321 along the change in location perpendicular to the laser processing cylinder axis direction, and Adjustment precision is high, Neng Gouman
The needs of the processing of sufficient changeable pattern.
Wherein, the adjustment direction of laser head 321 independently can carry out or be superimposed progress, and therefore, laser head is passed along substrate
Defeated direction and position adjustment can be carried out perpendicular to substrate delivery direction.
Further, as shown in Figure 1, the discrete laser head in the laser processing device includes at least one smoke evacuation system
322, for removing the flue dust generated in laser micropore process in substrate front.The smoke evacuation system is arranged in laser head 321
On, for laser head 321 under the irradiation of high-energy light beam, printing element is partly or entirely ablated, generates flue dust, is by smoke evacuation
The flue dust that substrate front can be generated by uniting siphons away.
Further, as shown in Figures 2 and 3, the laser processing roller 33 (is rolled by drum shaft 330, barrel 338
The inner frame of cylinder), barrel extrados 333 and five part of substrate transmission system 334 (paper-transferring tooth system) constitute, wherein described
Barrel 338 is at least provided with an internal air cavity 331；An end face in the roller both ends of the surface includes at least one end face
Aperture 332；At least one T-slot (T-type key 335 is equipped in T-slot) is provided on the barrel extrados；The roller
Multiple apertures of the same size are provided in external cambered surface 333, which absorbs the flue dust that substrate backside generates.
Further, it is described laser processing roller end face aperture 332, it is described laser processing roller inside air cavity 331 with
And be interconnected between multiple apertures on the barrel extrados, form the channel for absorbing the flue dust that substrate backside generates.
Since substrate is processed on roller, the flue dust that substrate backside generates passes through the channel for being equipped with and absorbing the flue dust that substrate backside generates
Roller siphon away, so, the present invention can absorb substrate backside generation flue dust.Smoke evacuation can be arranged in the present invention on laser head
System is set for removing the flue dust generated in laser micropore process in substrate front, also, on laser processing roller 33
The channel for absorbing the flue dust that substrate backside generates is set, for removing the cigarette generated in laser micropore process in substrate backside
Dirt.There is the channel for absorbing the flue dust that substrate backside generates at positive smoke evacuation system and the back side, the present invention can remove substrate
The flue dust of front and back both direction substantially improves working environment, more environmentally-friendly cleaning.
Further, it is fixedly connected by taper pin with attachment screw between the drum shaft 330 and barrel 338, in this way
It is connected firmly, it is easy for installation.
Further, by between the barrel 338 and the barrel extrados 333 by the T-slot and tight
Gu screw 337 connects, and can realize that the barrel extrados carries out position along the laser processing cylinder axis direction simultaneously
Adjustment, it is axially adjustable when realizing that substrate is processed.
Further, the laser anti-counterfeit equipment further includes at least one external air cavity 36, and external air cavity 36 swashs with described
Light making roller coaxial line is fixed at one side wall panel of equipment inside, and (external air cavity 36 is fixed, and drum shaft 330 is relatively outer
Connect the rotation of air cavity 36), the aperture of certain angle is provided on the external air cavity and equipment wallboard front of motor face.External air cavity
36 are connected with external gas source such as vacuum pump, and structure is non-whole circle configurations, in the mistake that laser processing roller is rotated with substrate
Cheng Zhong laser machines the correspondence area of cylinder surface when only laser processing roller end face aperture is corresponding with external air cavity
Just there is negative pressure of vacuum to realize substrate in the control of cylinder surface and remove substrate backside laser processing flue dust in domain.
Further, the end face aperture of the external air cavity 36 and the end face aperture 332 of the laser processing roller are opposite
It answers, and spacing is generally no greater than 0.5mm between the end face and the corresponding laser processing roller end face, to realize external air cavity
36 with laser processing roller laser processing roller inside air cavity 331 dock and formed effectively absorption flue dust channel.
The present invention also provides a kind of laser anti-counterfeit methods, using mentioned-above laser anti-counterfeit equipment, as shown in fig. 6,
N different small open positions process identical n micropore pattern 53 (n >=1) on big Zhang Jicai, i.e. progress laser micropore fixed pattern
Processing.Substrate passes through supply unit 1, into inkless belling unit 2, plate cylinder 21 and impression cylinder 22 described in the unit
Under interaction, the anti-counterfeit printing pattern constituted with different angle and spacing lines is formed in surface of the stock.It should in the present invention
The relationship of more times of diameter ratios is used between the impression cylinder and plate cylinder of unit, but not limited to this.Laser shown in the present invention
Micropore processing device can not only be adjusted the Working position of a certain independent fixed pattern, can also be to some specific micropore
Position carries out accurate adjustment in real time, and adjustment resolution ratio is not more than 1 μm, and Adjustment precision is not more than 10 μm.
Further, in the laser micropore fixed pattern process, the visual identifying system is in inoperative shape
State, the inkless belling unit only carry out substrate transmitting.
The present invention also provides a kind of laser anti-counterfeit methods, as shown in fig. 7, laser anti-counterfeit equipment noted earlier is also used,
N different small 52 positions of opening process mutually different n micropore pattern 53 (n >=1) on big Zhang Jicai 51, i.e. progress micropore is variable
Pattern processing.Further, as shown in fig. 7, the micropore changeable pattern is variable sequence number, for example, banknote numbers.When into
The processing of row real-time variable pattern when, whenever substrate reaches the visual identifying system 13 of supply unit 1, the visual identifying system is first
First to the part on substrate, printed patterns are identified and generate the receivable conversion signal of laser micropore control system, laser
Micropore control system issues action command to laser micropore system of processing according to the conversion signal received and carries out laser micropore pattern
Processing.Further, the small variable micropore pattern 53 and corresponding printing opened and processed is fixed on whole big Zhang Jicai
There is unique corresponding relations between pattern 54.Processing as carried out laser micropore number according to the money number printed, this
It is required that existing one-to-one relationship between the laser micropore number processed and the print number being completed for printing, it is this one by one
Corresponding relationship is realized by the cooperation of visual identifying system and laser micropore control system.
The present invention also provides a kind of laser anti-counterfeit methods, and using laser anti-counterfeit equipment, inkless pressure is successively carried out on substrate
The processing of convex pattern and laser micropore pattern generates one by the inkless belling pattern and the common structure of laser micropore pattern
At a kind of vision security pattern, in this way, the processing of inkless belling and laser micropore pattern further improves anti-fake degree.
Further, the micropore for constituting the laser micropore pattern is adjacent positioned at two for constituting the inkless belling pattern
In groove between impression, anti-fake degree is high.
The present invention not only solves the problem that pattern processing antifalsification difference can only be fixed in the prior art；The invention simultaneously
Paper control and dust treatment method of the patent in laser processing procedure have carried out Curve guide impeller, that is, ensure laser micropore figure
The precision of case processing, also ensures the occupational health of production environment.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.For this
Each component part of invention can be combined with each other under conditions of not conflicting, any those skilled in the art, not depart from this
Made equivalent changes and modifications, should belong to the scope of protection of the invention under the premise of the conceptions and principles of invention.
Claims (22)
1. a kind of laser anti-counterfeit equipment, which is characterized in that the laser anti-counterfeit equipment includes at least:
Substrate supply unit, for substrate to be transported to laser micropore processing unit；
The top of substrate supply unit is arranged in visual identifying system, for knowing to the partial pattern printed on substrate
It not and handles and realizes the signal exchange with laser micropore processing unit, the visual identifying system includes at least a phase
Machine, signal processor and vision control system；
The downstream of the substrate supply unit is arranged in inkless belling unit, and the inkless belling unit includes at least: a print
Plate cylinder and a printing roller；
Laser micropore processes unit, and the downstream of the inkless belling unit is arranged in, and the laser micropore processing unit at least wraps
It includes: laser processing roller, laser processing device, laser processing control system and laser processing device driving device；
The downstream of the inkless belling unit is arranged in the laser processing roller, opens up to the substrate in laser processing procedure
Gentle fixation, while removing the flue dust that substrate backside is generated due to laser processing；
The laser processing device is arranged in right above the axis of the laser processing roller, and the laser processing device includes:
At least one set of laser head；Every group of laser head includes at least 1 discrete laser head, and the independent laser head setting is parallel at one
In on the sliding rail of the laser processing cylinder axis, and the focal plane of the laser processing of laser head is respectively positioned on the laser and adds
On the surface of work cylinder surface printed substrate；
The laser processing control system is used to laser machine the generation, transmission and point between the laser head of production signal
Match；
The driving device and the laser processing device are hinged, are the laser processing device in operating position and inoperative position
Mutually conversion provides power between setting；
Substrate collector unit, for compiling the substrate of completion of processing.
2. laser anti-counterfeit equipment as described in claim 1, which is characterized in that the camera of the visual identifying system is to big Zhang Ji
The wherein at least one small printed portions pattern opened on material is identified that then identified printed patterns are through the signal processing
Device is converted into a column character string, and the vision control system identifies the character string that the signal processor generates, camera small
It opens the position of printed patterns over the whole substrate and passes to the laser processing control system；
Alternatively, the vision control system voluntarily generates character string and its open position information according to the setting independent of camera, and
After pass to the laser processing control system.
3. laser anti-counterfeit equipment as claimed in claim 2, which is characterized in that the visual identifying system was identified small opens portion
Sub-pattern is that each small open is provided with and mutually different pattern on big Zhang Jicai.
4. laser anti-counterfeit equipment as claimed in claim 2, which is characterized in that the laser processing control system is according to being received
To character string, camera identify the small life for opening printed patterns position over the whole substrate and the kinds of characters pre-seted
At rule, generate that n (n >=1) a different location on entire big Zhang Jicai is small to open the one-to-one n kinds of characters string of pattern, and
Corresponding position relationship is opened according to small on the different laser heads and big Zhang Jicai, the processing signal of kinds of characters string is distributed into institute
Different laser heads is stated, the laser head implements the processing of laser micropore according to the processing signal received.
5. laser anti-counterfeit equipment as described in claim 1, which is characterized in that the discrete laser head in the laser processing device
Axial location adjustment can be carried out on the sliding rail along the laser processing cylinder axis direction.
6. laser anti-counterfeit equipment as described in claim 1, which is characterized in that the discrete laser head in the laser processing device
The focus of the laser beam of generation can carry out normal position adjustment along perpendicular to the laser processing cylinder axis direction.
7. laser anti-counterfeit equipment as described in claim 1, which is characterized in that the discrete laser head in the laser processing device
Comprising at least one smoke evacuation system, for removing the flue dust generated in laser micropore process in substrate front.
8. laser anti-counterfeit equipment as described in claim 1, which is characterized in that the laser processing roller is by drum shaft, roller
Body, barrel extrados and five part of substrate transmission system are constituted, wherein the barrel is at least provided with an internal air cavity；
The barrel has both ends of the surface, and an end face in the barrel both ends of the surface includes at least one end face aperture；The rolling
At least one T-slot is provided on cylinder extrados；Multiple sides of the same size are provided on the barrel extrados to open
Hole.
9. laser anti-counterfeit equipment as claimed in claim 8, which is characterized in that the laser processing roller end face aperture, described
It laser machines and is interconnected between multiple lateral opening holes on barrel inside air cavity and the barrel extrados.
10. laser anti-counterfeit equipment as claimed in claim 8, which is characterized in that pass through cone between the drum shaft and barrel
Pin is fixedly connected with attachment screw.
11. laser anti-counterfeit equipment as claimed in claim 8, which is characterized in that the barrel and the barrel extrados
Between connected by the T-slot with fastening screw, and can realize that the barrel extrados is rolled along the laser processing simultaneously
Cylinder axis direction carries out position adjustment.
12. laser anti-counterfeit equipment as described in claim 1, which is characterized in that the laser anti-counterfeit equipment further includes at least one
A external air cavity, the external air cavity and the laser processing roller coaxial line are simultaneously fixedly installed, the end face of the external air cavity
On be provided with the second aperture.
13. laser anti-counterfeit equipment as claimed in claim 12, which is characterized in that the external gas resonator end surface aperture swashs with described
The end face aperture of light making roller is corresponding.
14. a kind of laser anti-counterfeit method, which is characterized in that laser anti-counterfeit equipment described in claim 1 is used, in big Zhang Jicai
On n different small open positions process identical n micropore pattern (n >=1), that is, carry out the processing of laser micropore fixed pattern.
15. laser anti-counterfeit method as claimed in claim 14, which is characterized in that the laser micropore fixed pattern process
In, the inkless belling unit only carries out substrate transmitting.
16. a kind of laser anti-counterfeit method, which is characterized in that laser anti-counterfeit equipment described in claim 1 is used, in big Zhang Jicai
Upper n different small open positions process mutually different n micropore pattern (n >=1), i.e. progress laser micropore changeable pattern processing.
17. laser anti-counterfeit method as claimed in claim 16, which is characterized in that the micropore changeable pattern is variable sequence
Number.
18. laser anti-counterfeit method as claimed in claim 16, which is characterized in that fix small open on whole big Zhang Jicai and processed
Laser micropore changeable pattern and corresponding printed patterns between there is unique corresponding relations.
19. the laser anti-counterfeit method as described in claim 17 or claim 18, which is characterized in that fixed on whole big Zhang Jicai
It is small open between processed laser micropore changeable pattern and corresponding printed patterns it is mutually completely the same.
20. the laser anti-counterfeit method as described in claim 17 or claim 18, which is characterized in that fixed on whole big Zhang Jicai
It is small to open between processed laser micropore changeable pattern and corresponding printed patterns with the unique corresponding pass of certain rule
System.
21. a kind of laser anti-counterfeit method, which is characterized in that use laser anti-counterfeit equipment described in claim 1, on substrate according to
The secondary processing for carrying out inkless belling pattern and laser micropore pattern, generation one are micro- by the inkless belling pattern and the laser
A kind of vision security pattern that sectional hole patterns collectively form.
22. laser anti-counterfeit method as claimed in claim 21, which is characterized in that constitute the micropore position of the laser micropore pattern
In in the groove for constituting the inkless belling pattern.
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| CN201710339375.4A CN107175942B (en) | 2017-05-15 | 2017-05-15 | Laser anti-counterfeit device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710339375.4A CN107175942B (en) | 2017-05-15 | 2017-05-15 | Laser anti-counterfeit device and method |
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| CN107175942A CN107175942A (en) | 2017-09-19 |
| CN107175942B true CN107175942B (en) | 2019-03-01 |
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| CN117922191A (en) * | 2024-03-20 | 2024-04-26 | 江苏黄海汽配股份有限公司 | Stamping device for frame sequential steel seal |
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| CN107175942A (en) | 2017-09-19 |
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Effective date of registration: 20210421 Address after: 100070 8th floor, building 2, No.5 Zhonghe Road, Science City, Fengtai District, Beijing Patentee after: China Banknote Printing Technology Research Institute Co.,Ltd. Patentee after: CHINA BANKNOTE PRINTING AND MINTING Corp. Address before: 100070 science Road 5, Beijing, Fengtai District Patentee before: SECURITY PRINTING INSTITUTE OF PEOPLE'S BANK OF CHINA Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |
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Address after: 100070 8th floor, building 2, No.5 Zhonghe Road, Science City, Fengtai District, Beijing Patentee after: China Banknote Printing Technology Research Institute Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 100070 8th floor, building 2, No.5 Zhonghe Road, Science City, Fengtai District, Beijing Patentee before: China Banknote Printing Technology Research Institute Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |