CN111016511A - Method for hiding feature code on precious metal commemorative coin or badge and commemorative coin or badge - Google Patents
Method for hiding feature code on precious metal commemorative coin or badge and commemorative coin or badge Download PDFInfo
- Publication number
- CN111016511A CN111016511A CN201911097086.3A CN201911097086A CN111016511A CN 111016511 A CN111016511 A CN 111016511A CN 201911097086 A CN201911097086 A CN 201911097086A CN 111016511 A CN111016511 A CN 111016511A
- Authority
- CN
- China
- Prior art keywords
- feature code
- precious metal
- badge
- commemorative coin
- metal commemorative
- 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
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/24—Pressing or stamping ornamental designs on surfaces
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C21/00—Coins; Emergency money; Beer or gambling coins or tokens, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/0052—Machines or apparatus for embossing decorations or marks, e.g. embossing coins by pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
- B44B5/026—Dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B2700/00—Machines, apparatus, tools or accessories for artistic work
- B44B2700/12—Accessories; Tool or work holders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Adornments (AREA)
Abstract
The embodiment of the application discloses a method for hiding a feature code on a precious metal commemorative coin or badge and the commemorative coin or badge. The hiding method comprises the following steps: carving a feature code on a designated surface of the mold with a set pattern; cleaning the carved mould; weakening the feature code engraved on the designated surface by electroplating; polishing the electroplated mold; identifying and detecting the feature codes of the polished mold; stamping the polished die with a precious metal commemorative coin or stamp blank cake to form the feature code and the set pattern on the precious metal commemorative coin or stamp; and identifying and detecting the feature codes on the precious metal commemorative coins or medals. The precious metal commemorative coin or badge is provided with a feature code; the feature code is manufactured by adopting the hiding method. The embodiment of the application can realize anti-counterfeiting, and has concealment and long-term effectiveness.
Description
Technical Field
The application relates to the technical field of manufacturing, in particular to a method for hiding a feature code on a precious metal commemorative coin or badge and the precious metal commemorative coin or badge.
Background
The noble metal commemorative coin or badge not only has the noble metal value, but also has the artistic collection and commemorative value. Therefore, the precious metal commemorative coin or badge needs to be subjected to anti-counterfeiting treatment. At present, the outer package of the precious metal commemorative coin or badge is printed with a feature code to realize an anti-counterfeiting mode, but the anti-counterfeiting performance of the package of the precious metal commemorative coin or badge is also continuously reduced along with the damage of the package.
The above background disclosure is only for the purpose of assisting in understanding the inventive concepts and technical solutions of the present application and does not necessarily pertain to the prior art of the present application, and should not be used to assess the novelty and inventive step of the present application in the absence of explicit evidence to suggest that such matter has been disclosed at the filing date of the present application.
Disclosure of Invention
The application provides a method for hiding a feature code on a precious metal commemorative coin or badge and the precious metal commemorative coin or badge, which can realize anti-counterfeiting and have concealment and long-term effectiveness.
In a first aspect, the present application provides a method of hiding a signature on a precious metal commemorative coin or badge:
carving a feature code on a designated surface of the mold with a set pattern;
cleaning the carved mould;
weakening the feature code engraved on the designated surface by electroplating;
polishing the electroplated mold;
identifying and detecting the feature codes of the polished mold;
stamping the polished die with a precious metal commemorative coin or stamp blank cake to form the feature code and the set pattern on the precious metal commemorative coin or stamp;
and identifying and detecting the feature codes on the precious metal commemorative coins or medals.
In some preferred embodiments, the engraving the feature code on the designated surface of the mold is specifically: and engraving the feature code on the designated surface of the die by laser.
In some preferred embodiments, the laser engraving uses a laser frequency of 23.5 khz; the laser power used for laser engraving is 27% of the rated power.
In some preferred embodiments, the time delay parameters used for laser engraving include: the light-on delay is 0 microsecond, the light-off delay is 100 microseconds, the end delay is 100 microseconds, and the corner delay is 100 microseconds;
the jump parameters used for laser engraving comprise: the jump speed is 2000 mm/s, the minimum delay is 100 microseconds, the maximum delay is 80 microseconds, and the limit length is 10 mm.
In some preferred embodiments, the cleaning of the engraved mold is specifically: and carrying out ultrasonic cleaning on the carved die.
In some preferred embodiments, the signature code is a dot matrix code.
In some preferred embodiments, the specific form of the prescribed surface includes a sandblasted surface and a patterned surface.
In a second aspect, the present application provides a precious metal commemorative coin or badge having a feature code; the feature code is manufactured by the hiding method.
Compared with the prior art, the beneficial effects of the embodiment of the application are as follows:
the characteristic code is manufactured on a die of the precious metal commemorative coin or badge through carving, is hidden by combining with a designated surface with a set pattern, is transferred to the precious metal commemorative coin or badge through a die stamping mode, and is scanned and identified by adopting special equipment and software. The characteristic code is extremely difficult to copy and counterfeit, so that the anti-counterfeiting effect can be realized, and the characteristic code has concealment and long-term effectiveness.
Drawings
FIG. 1 is a flow chart of a method for concealing a signature on a precious metal commemorative coin or badge according to one embodiment of the present application;
FIG. 2 illustrates the macroscopic blasting effect of one embodiment of the present application;
fig. 3 shows feature codes under a high magnification magnifier of one embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the embodiments of the present application more clearly apparent, the present application is further described in detail below with reference to fig. 1 to 3 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description of the embodiments and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the application.
The present embodiment provides a precious metal commemorative coin or badge. The precious metal commemorative coin or badge of this embodiment may specifically be a precious metal commemorative coin or a precious metal commemorative badge. The noble metal commemorative coin or medal of the present embodiment has a feature code. The feature code is manufactured by adopting the method for hiding the feature code on the precious metal commemorative coin or badge.
Referring to fig. 1, the hiding method of the present embodiment includes steps S1 to S7.
Step S1, engrave the feature code on the designated surface of the mold having the set pattern.
The noble metal commemorative coin or badge such as gold and silver commemorative badge has the functions of artistic collection, commemoration and the like besides the noble metal value of the coin or badge. The anti-counterfeiting mark on the gold and silver medal must provide an effective anti-counterfeiting mark and cannot cause excessive influence on the patterns of the gold and silver medal. Therefore, it is required that the size of the forgery-preventing mark is as small as possible while satisfying the detection requirement, so that it is difficult to see with the naked eye. The inventor finds that the dot code is a satisfactory characteristic code by trying to apply various anti-counterfeiting codes to the precious metal commemorative coins or medals. The dot matrix code is a pattern composed of tiny black dots, and the dot matrix code represents information by the size of dots, the arrangement of dots, and the relationship between dots.
In the process of manufacturing the mold, the position for placing the dot code is determined, and the effect of the position is manufactured as a designated surface with a set pattern. The designated surface can be a sand blasting surface, a pattern surface or other surfaces with set patterns; wherein the setting pattern can be set according to the characteristics of the coin or the chapter. The present embodiment will be described by taking a sandblasted surface as an example.
And after the manufacture of the mould is finished, engraving a dot code on the surface of the mould with the sand blasting effect, wherein the pattern formed by sand blasting on the surface of the mould is the set pattern. Specifically, reasonable technological parameters are set, and the dot matrix codes are carved on the sand blasting surface of the die in a laser carving mode. These dot codes are regular dots made on the surface of the mold.
And step S2, cleaning the carved mould.
After the characteristic codes are carved on the die through laser carving, the die is cleaned to remove dust left by the laser carving. Illustratively, the engraved mold is ultrasonically cleaned.
Step S3, weakening the feature code engraved on the designated surface by electroplating.
Electroplating the mould to weaken the laser engraving characteristic code effect on the sand blasting surface and realize the hiding of the characteristic code on the mould.
And step S4, polishing the electroplated mould.
And step S5, identifying and detecting the feature codes of the polished mold.
The surface image of the mold with high resolution is obtained by using a visual detection technology and image acquisition of a camera or a scanner and the like, fine features, namely feature codes, are found in the image, and the feature codes can be identified by using the features in combination with an image processing technology and a computer software technology. If the identification of the feature code of the polished mold is successful, the process proceeds to step S6.
And step S6, stamping the polished die on the precious metal commemorative coin or stamp blank cake to form a feature code and a set pattern on the precious metal commemorative coin or stamp.
The noble metal commemorative coin or stamp blank cake is stamped by the die, and the feature code can be formed on the surface of the noble metal commemorative coin or stamp.
The sand blasting effect on the precious metal commemorative coin or badge provides a good scheme for hiding the feature code. Wherein the blasting effect is previously present in the mould and is transferred to the precious metal commemorative coin or badge upon embossing.
And step S7, identifying and detecting the feature codes on the precious metal commemorative coins or medals.
The method comprises the steps of acquiring surface images of the precious metal commemorative coins or the medals with high resolution by using a visual detection technology and image acquisition of a camera or a scanner and the like, finding fine features in the images, and realizing identification of the precious metal commemorative coins or the medals by using the features in combination with an image processing technology and a computer software technology.
These features may be inherent or intentional, such as by laser engraving, among others.
This embodiment passes through laser with the minimum point of diameter and makes to the mould on, combines the mould sandblast technology of noble metal commemorative coin or chapter to hide, and on the mode rendition of impression is to noble metal commemorative coin or chapter, adopt professional equipment and software to scan and discern, the dot matrix sign indicating number is extremely difficult to be duplicated and counterfeited, thereby can realize anti-fake, has disguise and long-term validity.
The laser parameters of the present embodiment are set as follows.
The laser engraving used a laser frequency of 23.5 khz. The laser power used for laser engraving was 27% of the rated power.
Delay parameters used for laser engraving: the on-light delay is 0 microsecond, the off-light delay is 100 microseconds, the end delay is 100 microseconds, and the corner delay is 100 microseconds.
Jump parameters used for laser engraving: the jump speed is 2000 mm/s, the minimum delay is 100 microseconds, the maximum delay is 80 microseconds, and the limit length is 10 mm.
Therefore, the characteristic codes can be hidden on the precious metal commemorative coins or medals and are invisible to the naked eyes, and meanwhile, the characteristic codes can be recognized by the handheld device.
This embodiment is through laser sculpture's mode, carves the characteristic code to noble metal commemorative coin or on the chapter mould, and the characteristic code and the sandblast effect of rethread mould impression are with on the mould are changeed to noble metal commemorative coin or the chapter. The identification information carried by the feature code can be read out through special equipment and is difficult to copy. The characteristic code is hidden by combining a mold sand blasting process, and meanwhile, secret management is carried out on the characteristic code information, so that a noble metal commemorative coin or badge identifying technology with higher imitation difficulty and better practical performance is developed. Therefore, the characteristic code is directly hidden on the precious metal commemorative coin or badge and can be directly identified and read by an identification instrument, so that the anti-counterfeiting effect can be achieved.
The embodiment hides the feature code on the product, and can avoid the loss of the feature code caused by the damage of the package.
The noble metal commemorative coin or badge has the functions of artistic collection, commemoration and the like besides the value of the noble metal of the coin or badge. The feature code indicia on the precious metal commemorative coin or badge must not unduly affect the pattern of the precious metal commemorative coin or badge, etc., in addition to providing effective feature identification. Referring to fig. 2 and 3, the present embodiment hides the feature code on the sand blasting surface of the precious metal commemorative coin or badge, is invisible to naked eyes, does not affect the appearance effect of the product, and has concealment. The embodiment transfers the anti-counterfeiting code to the product, and has long-term effectiveness. The embodiment is combined with the sand blasting process of the coinage process, and the effect that the characteristic code is difficult to distinguish by naked eyes can be achieved.
Those skilled in the art will appreciate that all or part of the processes of the embodiments methods may be performed by a computer program, which may be stored in a computer-readable storage medium and executed to perform the processes of the embodiments methods. And the aforementioned storage medium includes: various media capable of storing program codes, such as ROM or RAM, magnetic or optical disks, etc.
The foregoing is a further detailed description of the present application in connection with specific/preferred embodiments and is not intended to limit the present application to that particular description. For a person skilled in the art to which the present application pertains, several alternatives or modifications to the described embodiments may be made without departing from the concept of the present application, and these alternatives or modifications should be considered as falling within the scope of the present application.
Claims (8)
1. A method for hiding a feature code on a precious metal commemorative coin or badge is characterized by comprising the following steps of:
carving a feature code on a designated surface of the mold with a set pattern;
cleaning the carved mould;
weakening the feature code engraved on the designated surface by electroplating;
polishing the electroplated mold;
identifying and detecting the feature codes of the polished mold;
stamping the polished mold with a precious metal commemorative coin or stamp blank cake to form the feature code and the set pattern on the precious metal commemorative coin or stamp;
and identifying and detecting the feature codes on the precious metal commemorative coins or medals.
2. The concealment method according to claim 1, wherein said engraving of the feature code on the designated surface of the mold is specifically: and engraving the feature code on the designated surface of the die by laser.
3. The concealment method according to claim 2, characterized in that: the laser frequency used for laser engraving is 23.5 khz; the laser power used for laser engraving is 27% of the rated power.
4. The concealment method according to claim 3,
the time delay parameters used by the laser engraving comprise: the light-on delay is 0 microsecond, the light-off delay is 100 microseconds, the end delay is 100 microseconds, and the corner delay is 100 microseconds;
the jump parameters used for laser engraving comprise: the jump speed is 2000 mm/s, the minimum delay is 100 microseconds, the maximum delay is 80 microseconds, and the limit length is 10 mm.
5. The concealment method according to claim 1, characterized in that said cleaning of said engraved mould is in particular: and carrying out ultrasonic cleaning on the carved die.
6. The concealment method according to claim 1, characterized in that: the feature code is a dot matrix code.
7. The concealment method according to claim 1, characterized in that: specific forms of the prescribed surface include a sandblasted surface and a patterned surface.
8. A precious metal commemorative coin or badge which is characterized in that: having a feature code; the feature code is manufactured by the hiding method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097086.3A CN111016511A (en) | 2019-11-11 | 2019-11-11 | Method for hiding feature code on precious metal commemorative coin or badge and commemorative coin or badge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097086.3A CN111016511A (en) | 2019-11-11 | 2019-11-11 | Method for hiding feature code on precious metal commemorative coin or badge and commemorative coin or badge |
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| Publication Number | Publication Date |
|---|---|
| CN111016511A true CN111016511A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911097086.3A Pending CN111016511A (en) | 2019-11-11 | 2019-11-11 | Method for hiding feature code on precious metal commemorative coin or badge and commemorative coin or badge |
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| CN (1) | CN111016511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146056A (en) * | 2021-02-26 | 2021-07-23 | 中国金币总公司 | Method for realizing optically variable scale color effect on surface of noble metal product |
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| CN113146056A (en) * | 2021-02-26 | 2021-07-23 | 中国金币总公司 | Method for realizing optically variable scale color effect on surface of noble metal product |
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