CN107175942A - laser anti-counterfeit device and method - Google Patents
laser anti-counterfeit device and method Download PDFInfo
- Publication number
- CN107175942A CN107175942A CN201710339375.4A CN201710339375A CN107175942A CN 107175942 A CN107175942 A CN 107175942A CN 201710339375 A CN201710339375 A CN 201710339375A CN 107175942 A CN107175942 A CN 107175942A
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- China
- Prior art keywords
- laser
- pattern
- micropore
- processing
- counterfeit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The invention provides a kind of laser anti-counterfeit device and method.The laser anti-counterfeit equipment at least includes：Base material supply unit, for processing base material to be transported into laser micropore machining cell；Visual identifying system, is arranged on the top of base material supply unit；Inkless belling unit, is arranged on the downstream of the base material supply unit；Laser micropore machining cell, is arranged on the downstream of the inkless belling unit；The Laser Processing roller is arranged on the downstream of the inkless belling unit；Laser processing device is arranged on directly over the axis of the Laser Processing roller；Base material collector unit, for the base material of completion of processing to be compiled.Laser anti-counterfeit method, can carry out laser micropore fixed pattern processing, and can carry out laser micropore can determine pattern processing.Laser anti-counterfeit method, a kind of vision security pattern that generation one is collectively formed by the inkless belling pattern and the laser micropore pattern.
Description
Technical field
The present invention relates to print field, and in particular to a kind of laser anti-counterfeit device and method, especially a kind of that laser is housed
The printing equipment of capillary processing unit, carries out laser micro- on the base material of other valuable documents such as marketable securities, passport, coin
The processing in hole.
Background technology
At present, laser micropore anti-counterfeiting technology is well known, is widely used in marketable securities, money, security card etc.
The production field of valuable document.In the prior art, the Chinese patent CN100540331C relevant with laser micropore process equipment
There is provided a kind of printing equipment for including laser micropore machining cell, the equipment contains intaglio printing unit and laser micropore adds
Two parts of work order member, laser micropore processing is carried out during chain transmission paper.
At least there is problems with the patented technology：
It can be produced when the 1st, being transmitted due to base material on chain and wave and deform, therefore machining accuracy is poor.
2nd, due to there was only the positive dust exhaust of base material, thus the dust treatment in laser micropore process is not enough filled
Point, the occupational health of influence processing environment and operating personnel.
3rd, laser micropore technique is single, it is impossible to carry out the processing of changeable pattern.
The content 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.
Therefore, the present invention proposes a kind of laser anti-counterfeit equipment, the laser anti-counterfeit equipment at least includes：
Base material supply unit, for base material to be transported into laser micropore machining cell；
Visual identifying system, is arranged on the top of base material supply unit, for entering to the partial pattern printed on base material
Go and recognize and handle and realize the signal exchange with the laser micropore machining cell, the visual identifying system comprises at least one
Platform camera, signal processor and vision control system；
Inkless belling unit, is arranged on the downstream of the base material supply unit, and the inkless belling unit at least includes：One
Individual plate cylinder and a printing roller；
Laser micropore machining cell, is arranged on the downstream of the inkless belling unit, the laser micropore machining cell is extremely
Include less：Laser machine roller, laser processing device, Laser Processing control system and laser processing device drive device；
The Laser Processing roller is arranged on the downstream of the inkless belling unit, and the base material in laser processing procedure is entered
Row is flattened and fixed, while removing the flue dust that substrate backside is produced due to Laser Processing；
The laser processing device is arranged on directly over the axis of the Laser Processing roller, the laser processing device bag
Include：At least one set of laser head；Every group of laser head at least includes 1 discrete laser head, and the independent laser head is arranged on one
Parallel to it is described Laser Processing cylinder axis sliding rail on, and the Laser Processing of laser head focal plane 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, transmission and between the laser head
Distribution；
The drive device is hinged with the laser processing device, is the laser processing device in operating position and non-work
Mutually conversion provides power between making position；
Base material collector unit, for the base material of completion of processing to be compiled.
Further, the camera of the visual identifying system is to the small printed portions opened of wherein at least one on big Zhang Jicai
Pattern is identified, and then identified printed patterns are converted into a row character string, the vision control through the signal processor
Character string that system processed generates the signal processor, camera recognize that the small position of printed patterns over the whole substrate of opening is passed
Pass the laser control system；
Or, 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 control system.
Further, the small partial pattern of opening that the visual identifying system is recognized is provided with for each small open on big Zhang Jicai
And mutually different pattern.
Further, the laser control system is recognized according to received character string, camera small opens printed patterns
N (n >=1) on position over the whole substrate and the Conduce Disciplinarian of the kinds of characters pre-seted, the whole big Zhang Jicai of generation
Individual diverse location is small to open the one-to-one n kinds of characters string of pattern, and according to the different laser heads with it is small on big Zhang Jicai
Correspondence position relation is opened, the processing signal of kinds of characters string the different laser head is distributed into, the laser head is according to reception
The processing signal arrived 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 is produced 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 produced in laser micropore process in base material front.
Further, the Laser Processing roller is by drum shaft, barrel, roller extrados body and base material 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 perforate；At least one is provided with the Laser Processing barrel extrados
Individual T-slot；Multiple lateral opening holes of the same size are provided with the roller extrados body.
Further, the Laser Processing roller end face perforate, air cavity and described inside the Laser Processing barrel
It is interconnected between multiple lateral opening holes on Laser Processing barrel extrados.
Further, it is fixedly connected between the drum shaft and barrel by taper pin with attachment screw.
Further, connected between the barrel and the roller exterior arc surface body by the T-slot and trip bolt
Connect, and can realize that the roller exterior arc surface body carries out position adjustment along the Laser Processing cylinder axis direction simultaneously.
Further, the laser anti-counterfeit equipment also 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 the second perforate is provided with the end face of the external air cavity.
Further, the external gas resonator end surface perforate is corresponding with the end face perforate of the Laser Processing 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 processing n micropore pattern of identical (n >=1), that is, carry out laser micropore fixed pattern processing.
Further, in the fixed laser micropore pattern process, the inkless belling unit only carries out base material biography
Pass.
The present invention also proposes a kind of laser anti-counterfeit method, using laser anti-counterfeit equipment, and n difference is small on big Zhang Jicai opens
Position processes mutually different n micropore pattern (n >=1), that is, carries out laser micropore changeable pattern processing.
Further, the variable micro-hole pattern is variable sequence number.
Further, fixed on whole big Zhang Jicai and small open processed laser micropore changeable pattern and corresponding printing
Unique corresponding relation is there is between pattern.
Further, fixed on whole big Zhang Jicai and small open processed laser micropore changeable pattern and corresponding printing
It is mutually completely the same between pattern.
Further, fixed on whole big Zhang Jicai and small open processed laser micropore changeable pattern and corresponding printing
With the unique corresponding relation of certain rule between pattern.
The present invention also proposes a kind of laser anti-counterfeit method, using laser anti-counterfeit equipment, carries out inkless pressure successively on base material
The processing of convex pattern and laser micropore pattern, generation one is by the inkless belling pattern and the common structure of laser micropore pattern
Into 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 fixed to the base material in laser processing procedure using laser machining roller, overcomes tradition
Chain drive low precision shortcoming, machining accuracy is higher.And then, 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,
It also ensure that the occupational health of production environment.
Inkless belling pattern and laser micropore combination of patterns are produced a kind of new vision false proof process, to carry by the present invention
Height forges difficulty.
The present invention can carry out the processing of variable laser micropore security pattern, can be according to itself a certain unique features progress pair
Stress light micropore pattern processing, this cause processed laser micropore pattern have higher unicity and antifalsification.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the laser anti-counterfeit equipment of the present invention；
Fig. 2 is the dimensional structure diagram for laser machining roller of the invention；
Fig. 3 is the internal structure schematic diagram for laser machining roller of the invention；
Fig. 4 is the main structure diagram of the laser processing device of the present invention；
Fig. 5 is the side structure schematic view of the laser processing device of the present invention；
Fig. 6 processes the schematic diagram of fixed pattern for the laser anti-counterfeit method of the present invention；
Fig. 7 can determine the schematic diagram of pattern for the laser anti-counterfeit method processing of the present invention.
Drawing reference numeral explanation：
The inkless base material collector unit of 3 laser micropore machining cell of belling unit 4 of 1 base material supply unit 2
The roller for paper feeding of 11 paper guide, 12 paper carrying plate, 13 visual identifying system 14
The transfer roller of 21 plate cylinder, 22 impression cylinder, 23 paper-transferring tooth system, 24 first transfer roller 25 second
The external air cavity of 32 laser processing devices 33 Laser Processing roller, 34 drive device 36
The laser head installation frame 324 of 320 sliding rail, 321 laser head, 322 laser smoke evacuation system 323 adjusts handwheel
325 laser head lever position indicators
The base material transmission system of 330 drum shaft, 331 inside air cavity, 332 end face perforate, 333 roller extrados body 334
The barrel of 337 trip bolt of 335T types key 338
The base material collecting bin of 41 base material collecting bin 42
51 big Zhang Jicai 52 are small to open the micropore changeable pattern of 53 micropore fixed pattern 54
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now control illustrates this hair
It is bright.
It is an object of the present invention to provide a kind of to being fixed or variable sharp in the paper of cylinder surface high-speed transfer
The apparatus and method of light micropore pattern processing, to meet the high accuracy such as marketable securities, money, valuable document, high imitative puppet pattern
The demand of processing.
As shown in figure 1, the laser anti-counterfeit equipment of the present invention at least includes：
Base material supply unit 1, for processing base material to be transported into laser micropore machining cell；Processing base material is, for example, processing
Base material, paper or the medium of the valuable documents such as marketable securities, money, ID cards；Base material supply unit 1 is included in existing mature technology
Paper guide 11, paper carrying plate 12, roller for paper feeding 14 etc. it is outer, be additionally provided with a set of visual identifying system 13；
Inkless belling unit 2, is arranged on the downstream of the base material supply unit 1, is nonrestrictive intaglio printing, such as existing
There is the intaglio ink unit commonly used in known technology, can be used by the form of non-ink supply；The inkless belling unit 2 to
Include less：First transfer roller 24, printing roller 21, plate cylinder 22, the transfer roller 25 of paper tooth system 23 and second；
Laser micropore machining cell 3, is arranged on the downstream of the inkless belling unit 2, carries out laser micropore processing, described
Laser micropore machining cell 3 at least includes：Laser machine roller 33, laser processing device 32, Laser Processing control system and swash
The drive 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, so as to form portion concave or perforation on base material thickness；
The Laser Processing roller 33 is arranged on the downstream of the second transfer roller 25 of the inkless belling unit, passes through vacuum
Negative pressure is flattened and fixed to the base material in laser processing procedure, while discharging the cigarette produced in drums inside Laser Processing
Dirt；
The laser processing device 32 is arranged on directly over 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 at least includes 1 discrete laser first 321, as shown in Figure 4 and Figure 5,
The independent laser head 321 is arranged on a sliding rail 320 parallel to the Laser Processing cylinder axis, therefore,
Laser head 321 can carry out position adjustment along the Laser Processing cylinder axis direction on the sliding rail 320, carry out variable
The processing of pattern, and the focal plane of the Laser Processing of laser head is respectively positioned on the surface for laser machining cylinder surface printed substrate
On；Sliding rail 320 is arranged on laser head installation frame 323；
Visual identifying system 13, is arranged in base material 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 processing base materials of identifying system is identified and handled and realizes with the laser micropore to add
The signal exchange of work order member, the visual identifying system comprises at least a camera, signal processor and vision control system；Phase
Machine is taken pictures to base material, obtains printed patterns (including pattern or text information), the printing that signal processor recognizes camera
Pattern is converted into a row character string, and character string that vision control system generates the signal processor, camera recognize small open
The position of printed patterns over the whole substrate passes to the laser control system, and the Laser Processing control system is used for laser
Process the generation, transmission and the distribution between the laser head of signal；
The vision control system can also (independent of camera), voluntarily generation character string and its open position be believed according to setting
Breath, then passes to the laser control system；
The drive device 34 is hinged with the laser processing device 32, is the laser processing device 32 in operating position
Mutually conversion provides power between off-position；Such as a pair of the electric pushrods of drive device 34；The one end of drive device 34 is consolidated
It is scheduled on equipment wallboard, and is coaxially installed with motor；Both sides of its other end respectively with laser processing device 32 are connected,
When being laser machined, drive 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 correspondence position need to be serviced when, drive device driving laser processing device 34 be located at
The off-position of Laser Processing；
Delivery unit, also referred to as base material collector unit 4, with two base material collecting bins, respectively base material collecting bin 41 and base
Material collecting bin 42, (but it is not limited to two, and increase and decrease setting can be carried out according to production technology demand) it is used for the base material of completion of processing
Compile.
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, and then described identified printed patterns are converted into a row character string through the signal processor, described to regard
Feel that the control system character string that generates the signal processor, camera are recognized and small open the position of printed patterns over the whole substrate
Put and pass to the laser control system.By the identification of visual identifying system 13, information processing and information transmission, laser controlling
System is controlled position and the action of laser processing device, can carry out the processing of changeable pattern.
Further, the vision control system can also according to setting (independent of camera) voluntarily generation character string and
Its open position information, then passes to laser control system.
Further, the laser control system is recognized according to received character string, camera small opens printed patterns
N (n >=1) on position over the whole substrate and the production law of the kinds of characters pre-seted, the whole big Zhang Jicai of generation
Individual diverse location is small to open the individual kinds of characters strings of the one-to-one n of pattern (n >=1), and according to the different laser heads and big Zhang Ji
It is small on material to open correspondence position relation, the processing signal of kinds of characters string is distributed into the different laser head, the laser head
Implement the processing of laser micropore according to the processing signal received, form micropore fixed pattern 53.In such manner, it is possible to real-time basis
It is required that 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 first 321 in the laser processing device can be along the laser
Making roller axis direction carries out position adjustment on 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 by be spirally connected or clamping connect laser head 321, during adjustment using adjustment handwheel 325 adjustment laser head 321 slide rail
Moved on road 320, laser head lever position indicator 324 shows the position of laser head 321, Adjustment precision is high.
Change in such manner, it is possible to meet axial location of the laser head 321 along Laser Processing cylinder axis direction, and adjustment essence
Degree is not less than 0.5mm, preferably 0.1mm, the need for the processing that disclosure satisfy that changeable pattern.
Further, the focus for the laser beam that discrete laser head in the laser processing device is produced 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
Laser head 321 is met along the change in location perpendicular to the Laser Processing cylinder axis direction, and Adjustment precision is high, Neng Gouman
The need for 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 base material
Defeated direction and it can carry out position adjustment 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 produced in laser micropore process in base material front.The smoke evacuation system is arranged on laser head 321
On, laser head 321 is under the irradiation of high-energy light beam, and printing element is partly or entirely ablated, produces flue dust, is by discharging fume
System can siphon away the flue dust that base material front is produced.
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), roller extrados body 333 and the part of base material transmission system 334 (paper-transferring tooth system) five 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
Perforate 332；At least one T-slot (T-shaped key 335 is provided with T-slot) is provided with the Laser Processing barrel extrados；
Multiple perforates of the same size are provided with the roller extrados body 333, the perforate absorbs the flue dust that substrate backside is produced.
Further, the Laser Processing roller end face perforate 332, the Laser Processing roller inside air cavity 331 with
And be interconnected between multiple perforates on the Laser Processing barrel extrados, formed and absorb the flue dust that substrate backside is produced
Passage.Because base material is processed on roller, the flue dust that substrate backside is produced passes through provided with the cigarette for absorbing substrate backside generation
The roller of the passage of dirt is siphoned away, so, the present invention can absorb the flue dust of substrate backside generation.The present invention can be on laser head
Smoke evacuation system is set, for removing the flue dust produced in laser micropore process in base material front, also, in Laser Processing rolling
The passage for absorbing the flue dust that substrate backside is produced is set on cylinder 33, for removing in laser micropore process in substrate backside production
Raw flue dust.There are positive smoke evacuation system and the passage for absorbing the flue dust that substrate backside is produced at the back side, the present invention can be clear
Except the flue dust of base material front and back both direction, working environment, more environmentally-friendly cleaning are substantially improved.
Further, it is fixedly connected between the drum shaft 330 and barrel 338 by taper pin with attachment screw, so
It is connected firmly, it is easy for installation.
Further, by between the barrel 338 and the roller exterior arc surface body 333 by the T-slot and
Trip bolt 337 is connected, and can realize that the roller exterior arc surface body is carried out along the Laser Processing cylinder axis direction simultaneously
Position adjustment, it is axially adjustable during base material processing to realize.
Further, the laser anti-counterfeit equipment also includes at least one external air cavity 36, and external air cavity 36 swashs with described
Light making roller coaxial line is fixedly installed on the framed side wallboard of equipment one inner side, and (external air cavity 36 is fixed, and drum shaft 330 is relatively outer
Air cavity 36 is connect to rotate), the external air cavity and the perforate that certain angle is provided with equipment wallboard front of motor face.External air cavity
36 are connected with external source of the gas such as vavuum pump, and its structure is non-whole circle configurations, the mistake rotated in Laser Processing roller with base material
Cheng Zhong, when only Laser Processing roller end face perforate is corresponding with external air cavity, laser machines the corresponding area of cylinder surface
Just there is negative pressure of vacuum to realize base material in the control of cylinder surface and remove substrate backside Laser Processing flue dust in domain.
Further, the end face perforate of the external air cavity 36 is relative with the end face perforate 332 of the Laser Processing roller
Should, 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
The passage for docking and being formed effective absorption flue dust of the inside air cavity 331 of the 36 Laser Processing roller with laser machining roller.
The present invention also provides a kind of laser anti-counterfeit method, using foregoing laser anti-counterfeit equipment, as shown in fig. 6,
N different small open position processing identical n micropore patterns 53 (n >=1), that is, be fixed laser micropore pattern on big Zhang Jicai
Processing.Base material passes through supply unit 1, into inkless belling unit 2, in plate cylinder 21 described in the unit and impression cylinder 22
Under interaction, the anti-counterfeit printing pattern constituted with different angles and spacing lines is formed on stock surface.Should in the present invention
Employed between the impression cylinder and plate cylinder of unit many times of footpaths than relation, but not limited to this.Laser shown in the present invention
Micropore processing device can be not only adjusted to 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 fixed laser micropore pattern process, the visual identifying system is in inoperative shape
State, the inkless belling unit only carries out base material transmission.
The present invention also provides a kind of laser anti-counterfeit method, 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, that is, carry out variable micro-hole
Pattern is processed.Further, as shown in fig. 7, the variable micro-hole pattern is variable sequence number, for example, banknote numbers.When entering
The processing of row real-time variable pattern when, whenever base material reaches the visual identifying system 13 of supply unit 1, the visual identifying system is first
First to the part on base material, printed patterns are identified and generate the receivable conversion signal of laser micropore control system, laser
Micropore control system sends action command to laser micropore system of processing according to the conversion signal received and carries out laser micropore pattern
Processing.Further, fixed on whole big Zhang Jicai and small open the variable micropore pattern 53 processed and corresponding printing
Unique corresponding relation is there is between pattern 54.Processing as carried out laser micropore number according to the money number printed, this
It is required that the one-to-one relationship existed between the laser micropore number processed and the print number being completed for printing, it is this one by one
Corresponding relation 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 method, using laser anti-counterfeit equipment, carries out inkless pressure successively on base material
The processing of convex pattern and laser micropore pattern, generation one is by the inkless belling pattern and the common structure of laser micropore pattern
Into a kind of vision security pattern, so, the processing of inkless belling and laser micropore pattern further increases false proof degree.
Further, the micropore for constituting the laser micropore pattern is adjacent positioned at constitute the inkless belling pattern two
In groove between impression, false proof degree is high.
The present invention, which not only solves prior art, can only be fixed the problem of pattern processing antifalsification is poor；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 that laser micropore figure
The precision of case processing, also ensure that the occupational health of production environment.
Schematical embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.For this
Each part of invention can be mutually combined under conditions of not conflicting, any those skilled in the art, not depart from this
Made equivalent variations and modification, all should belong to the scope of protection of the invention on the premise of the design of invention and principle.
Claims (22)
1. a kind of laser anti-counterfeit equipment, it is characterised in that the laser anti-counterfeit equipment at least includes：
Base material supply unit, for base material to be transported into laser micropore machining cell；
Visual identifying system, is arranged on the top of base material supply unit, for knowing to the partial pattern printed on base material
Not and handle and realize the signal exchange with the laser micropore machining cell, the visual identifying system is including at least phase
Machine, signal processor and vision control system；
Inkless belling unit, is arranged on the downstream of the base material supply unit, and the inkless belling unit at least includes：One print
Plate cylinder and a printing roller；
Laser micropore machining cell, is arranged on the downstream of the inkless belling unit, and the laser micropore machining cell is at least wrapped
Include：Laser machine roller, laser processing device, Laser Processing control system and laser processing device drive device；
The Laser Processing roller is arranged on the downstream of the inkless belling unit, and exhibition is carried out to the base material in laser processing procedure
Gentle fixation, while removing the flue dust that substrate backside is produced due to Laser Processing；
The laser processing device is arranged on directly over 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 at least includes 1 discrete laser head, the independent laser head be arranged on one it is parallel
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 added
On the surface of work cylinder surface printed substrate；
The Laser Processing control system is used to laser machine the generation of production signal, transmission and point between the laser head
Match somebody with somebody；
The drive device is hinged with the laser processing device, is the laser processing device in operating position and inoperative position
Mutually conversion provides power between putting；
Base material collector unit, for the base material of completion of processing to be compiled.
2. laser anti-counterfeit equipment as claimed in claim 1, it is characterised in that the camera of the visual identifying system is to big Zhang Ji
The small printed portions pattern opened of wherein at least one on material is identified, and then identified printed patterns are through the signal transacting
Device is converted into a row character string, and character string that the vision control system generates the signal processor, camera recognize small
Open the position of printed patterns over the whole substrate and pass to the laser control system；
Or, 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 control system.
3. laser anti-counterfeit equipment as claimed in claim 2, it is characterised in that what the visual identifying system was recognized 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, it is characterised in that the laser control system is according to received
Character string, camera recognize the small generation rule for opening printed patterns position over the whole substrate and the kinds of characters pre-seted
N (n >=1) individual diverse location is small on rule, the whole big Zhang Jicai of generation 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 upper it is small open correspondence position relation, by the processing signal of kinds of characters string distribute to described in not
Same laser head, the laser head implements the processing of laser micropore according to the processing signal received.
5. laser anti-counterfeit equipment as claimed in claim 1, it is characterised 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 claimed in claim 1, it is characterised 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 claimed in claim 1, it is characterised in that the discrete laser head in the laser processing device
Comprising at least one smoke evacuation system, for removing the flue dust produced in laser micropore process in base material front.
8. laser anti-counterfeit equipment as claimed in claim 1, it is characterised in that the Laser Processing roller is by drum shaft, roller
Body, roller extrados body and the part of base material transmission system five are constituted, wherein the barrel is at least provided with an internal air cavity；
There is the barrel end face in both ends of the surface, the barrel both ends of the surface to include at least one end face perforate；It is described to swash
At least one T-slot is provided with the external cambered surface of light making roller；It is provided with the roller extrados body multiple in the same size
Lateral opening hole.
9. laser anti-counterfeit equipment as claimed in claim 8, it is characterised in that the Laser Processing roller end face perforate, described
Mutually interconnected between multiple lateral opening holes on Laser Processing barrel inside air cavity and the Laser Processing barrel extrados
It is logical.
10. laser anti-counterfeit equipment as claimed in claim 8, it is characterised 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, it is characterised in that the barrel and the roller exterior arc surface
Connected between body by the T-slot and trip bolt, and can realize that the roller exterior arc surface body adds along the laser simultaneously
Work cylinder axis direction carries out position adjustment.
12. laser anti-counterfeit equipment as claimed in claim 1, it is characterised in that the laser anti-counterfeit equipment also includes at least one
Individual external air cavity, the external air cavity roller coaxial line and is fixedly installed, the end face of the external air cavity with the Laser Processing
On be provided with the second perforate.
13. laser anti-counterfeit equipment as claimed in claim 12, it is characterised in that the external gas resonator end surface perforate swashs with described
The end face perforate of light making roller is corresponding.
14. a kind of laser anti-counterfeit method, it is characterised in that the laser anti-counterfeit equipment described in usage right requirement 1, in big Zhang Jicai
On the different small open positions processing n micropore patterns of identical (n >=1) of n, i.e. progress laser micropore fixed pattern processing.
15. laser anti-counterfeit method as claimed in claim 14, it is characterised in that the fixed laser micropore pattern process
In, the inkless belling unit only carries out base material transmission.
16. a kind of laser anti-counterfeit method, it is characterised in that the laser anti-counterfeit equipment described in usage right requirement 1, in big Zhang Jicai
Upper n different small open positions process mutually different n micropore pattern (n >=1), that is, carry out laser micropore changeable pattern processing.
17. laser anti-counterfeit method as claimed in claim 16, it is characterised in that the variable micro-hole pattern is variable sequence
Number.
18. the laser anti-counterfeit method as described in claim 16 or claim 17, it is characterised in that fixed on whole big Zhang Jicai
It is small to open processed laser micropore changeable pattern and there is unique corresponding relation between corresponding printed patterns.
19. the laser anti-counterfeit method as described in claim 17 or claim 18, it is characterised in that fixed on whole big Zhang Jicai
It is small that to open processed laser micropore changeable pattern mutually completely the same between corresponding printed patterns.
20. the laser anti-counterfeit method as described in claim 17 or claim 18, it is characterised 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, it is characterised in that the laser anti-counterfeit equipment described in usage right requirement 1, on base material according to
The secondary processing for carrying out inkless belling pattern and laser micropore pattern, generation one is micro- by inkless the belling pattern and the laser
A kind of vision security pattern that sectional hole patterns are collectively formed.
22. laser anti-counterfeit method as claimed in claim 21, it is characterised 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710339375.4A CN107175942B (en) | 2017-05-15 | 2017-05-15 | Laser anti-counterfeit device and method |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN107175942A true CN107175942A (en) | 2017-09-19 |
| CN107175942B CN107175942B (en) | 2019-03-01 |
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| CN201710339375.4A Active CN107175942B (en) | 2017-05-15 | 2017-05-15 | Laser anti-counterfeit device and method |
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|---|---|
| CN107175942B (en) | 2019-03-01 |
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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. |