CN113682641A - Two-dimensional code anti-theft metal cover, preparation method and two-dimensional code anti-theft tank - Google Patents
Two-dimensional code anti-theft metal cover, preparation method and two-dimensional code anti-theft tank Download PDFInfo
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- CN113682641A CN113682641A CN202110948475.3A CN202110948475A CN113682641A CN 113682641 A CN113682641 A CN 113682641A CN 202110948475 A CN202110948475 A CN 202110948475A CN 113682641 A CN113682641 A CN 113682641A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
- B65D47/103—Membranes with a tearing element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/22—Details
- B65D77/30—Opening or contents-removing devices added or incorporated during filling or closing of containers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
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Abstract
The invention relates to a two-dimensional code anti-theft metal cover, a preparation method and a two-dimensional code anti-theft metal cover, wherein the two-dimensional code anti-theft metal cover comprises: a base cover having an opening sealed by an aluminum film seal adhered to an outer surface thereof; the surface that basic lid and aluminium membrane seal pasted is endowed with first two-dimensional code, and the aluminium membrane seals one side and pastes with basic lid, and the another side that the aluminium membrane seals is endowed with the second two-dimensional code, and the first data that obtains according to first two-dimensional code and the second data that obtains through the second two-dimensional code have data incidence relation, and the first data that the scanning first two-dimensional code obtained include supplementary sign. According to the invention, the two-dimension codes are arranged inside and outside, so that the risk of stealing the two-dimension codes is reduced.
Description
Technical Field
The invention relates to the technical field of metal cover design, in particular to a two-dimensional code anti-theft metal cover, a preparation method and a two-dimensional code anti-theft can.
Background
With the rapid development of domestic economy and the change of consumption concept, canned products such as milk powder products, nutritional powder products and the like are more and more accepted and favored by the public in recent years. In order to prevent counterfeit goods, prevent goods from being mixed due to cost difference in different market areas, protect benefits of consumers and dealers, simplify channel operation, most of existing canned products use two-dimensional code labels and traceability technologies, but the actual theft prevention property is general, and the risk that the two-dimensional code is stolen exists.
Disclosure of Invention
The invention aims to provide a two-dimension code anti-theft metal cover, a preparation method and a two-dimension code anti-theft tank, which reduce the risk of two-dimension code theft.
In order to achieve the purpose, the invention provides the following scheme:
a two-dimensional code anti-theft metal cover comprises: a base cover provided with an opening sealed by an aluminum film seal adhered to an outer surface of the base cover;
one side of the basic cover, which is pasted with the aluminum film seal, is provided with a first two-dimensional code and an auxiliary identifier, one side of the aluminum film seal is pasted with the basic cover, the aluminum film seal covers the first two-dimensional code, the aluminum film seal does not cover the auxiliary identifier, the other side of the aluminum film seal is provided with a second two-dimensional code, a data association relationship is formed between first data obtained according to the first two-dimensional code and second data obtained through the second two-dimensional code, and the first data obtained by scanning the first two-dimensional code comprises the auxiliary identifier or a set corresponding relationship is formed between the first data and the auxiliary identifier; the auxiliary mark is a character string or a pattern.
Optionally, the size of the first two-dimensional code is 6 × 6mm to 15 × 15 mm.
Optionally, a protective layer, a heat sealing layer and a hot melt adhesive layer are sequentially arranged on the surface of the aluminum film seal, which is adhered to the basic cover; the protective layer is made of polyester resin, acrylic resin or epoxy resin; the heat sealing layer is made of polypropylene resin, polyester resin or acrylic resin.
Optionally, the protective layer has a thickness in a range of 1.5 ± 0.5g/m2The thickness range of the heat sealing layer is 9.5 +/-1.5 g/m2；
The opening is a D-shaped opening.
The invention also discloses a two-dimensional code anti-theft tank, which comprises the two-dimensional code anti-theft metal cover.
The invention also discloses a two-dimension code anti-theft metal cover preparation method, which is used for preparing the two-dimension code anti-theft metal cover, and the two-dimension code anti-theft metal cover preparation method comprises the following steps:
obtaining a basic cover by stamping;
generating a first two-dimensional code and an auxiliary mark by burning at a set position on the outer surface of the basic cover through a laser, wherein first data obtained by scanning the first two-dimensional code comprise the auxiliary mark or have a set corresponding relation with the auxiliary mark; the auxiliary mark is a character string or a pattern;
punching a basic cover for generating a first two-dimensional code to obtain a basic cover with an opening;
sealing the opening of the basic cover by adopting an aluminum film seal through a heat sealing process, wherein the aluminum film seal covers the first two-dimensional code, and the aluminum film seal does not cover the auxiliary identifier;
burning the other side of the aluminum film seal sealed with the basic cover by a laser to generate a second two-dimensional code; and the first data acquired according to the first two-dimensional code and the second data acquired through the second two-dimensional code have a data association relationship.
Optionally, the sealing the opening of the basic cover with the aluminum film seal by using a heat sealing process specifically includes:
coating a protective layer, a heat sealing layer and a hot melt adhesive layer on one surface of the aluminum film seal in sequence; the protective layer is made of polyester resin, acrylic resin or epoxy resin; the heat sealing layer is made of polypropylene resin, polyester resin or acrylic resin;
and sealing the opening of the basic cover by sealing the aluminum film coated with the protective layer, the heat sealing layer and the hot melt adhesive layer by adopting a heat sealing process.
Optionally, the protective layer has a thickness in a range of 1.5 ± 0.5g/m2The thickness range of the heat sealing layer is 9.5 +/-1.5 g/m2。
Optionally, the laser is an infrared picosecond laser, the power of the infrared picosecond laser is 50-100W, and the wavelength is 1064 ± 0.5 nm.
Optionally, the size of the first two-dimensional code is 6 × 6mm to 15 × 15 mm.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, the first two-dimensional code is arranged on the surface of the basic cover adhered to the aluminum film seal, the second two-dimensional code is arranged on the outer surface of the aluminum film seal, and the first data acquired according to the first two-dimensional code and the second data acquired through the second two-dimensional code are arranged to have a data association relationship, so that the risk of stealing the two-dimensional code is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a first schematic view of a two-dimensional code anti-theft metal cover structure of the present invention;
FIG. 2 is a schematic view of a two-dimensional code anti-theft metal cover structure of the present invention;
FIG. 3 is a schematic flow chart of a method for manufacturing a two-dimensional code anti-theft metal cover according to the present invention;
description of the symbols: 1-basic cover, 2-aluminum film seal, 3-opening, 4-first two-dimensional code, 5-second two-dimensional code, 6-auxiliary identification and 7-handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a two-dimension code anti-theft metal cover, a preparation method and a two-dimension code anti-theft tank, which reduce the risk of two-dimension code theft.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a first structural schematic view of a two-dimensional code anti-theft metal cover of the present invention, fig. 2 is a second structural schematic view of a two-dimensional code anti-theft metal cover of the present invention, as shown in fig. 1-2, a two-dimensional code anti-theft metal cover includes: and the basic cover is provided with an opening, and the opening is sealed by an aluminum film seal adhered to the outer surface of the basic cover to form the easy-to-tear cover. The basic cover is a metal cover, in particular an iron cover. The opening is a D-shaped opening. The basic cover is a dome.
Fig. 1 is a structural schematic diagram of the aluminum film seal of the easy-to-tear cover after being torn, and fig. 2 is a structural schematic diagram of the aluminum film seal of the easy-to-tear cover when not being torn.
One side of the basic cover, which is pasted with the aluminum film seal, is provided with a first two-dimensional code and an auxiliary identifier, one side of the aluminum film seal is pasted with the basic cover, the aluminum film seal covers the first two-dimensional code, the aluminum film seal does not cover the auxiliary identifier, the other side of the aluminum film seal is provided with a second two-dimensional code, data association relationship is provided between first data obtained according to the first two-dimensional code and second data obtained through the second two-dimensional code, and the first data obtained by scanning the first two-dimensional code comprises the auxiliary identifier or the first data and the auxiliary identifier have a set corresponding relationship; the auxiliary identifier is a character string or a pattern. The character string includes numbers, letters, or a combination of numbers and letters.
As a specific embodiment, the auxiliary identifier is the last four bits of the address data corresponding to the first two-dimensional code.
When the auxiliary mark is a pattern, the pattern and first data obtained by scanning the first two-dimensional code have a set corresponding relation.
The first data and the second data have a data association relationship, and the first data and the second data both include a product serial number, or a storage data table of the first data and a storage data table of the second data have an association field.
The size of the first two-dimensional code is 6 x 6 mm-15 x 15 mm.
The surface of the aluminum film seal, which is adhered to the basic cover, is sequentially provided with a protective layer, a heat sealing layer and a hot melt adhesive layer. The protective layer is polyester resin, acrylic resin or epoxy resin; the heat sealing layer is made of polypropylene resin, polyester resin or acrylic resin.
The thickness of the protective layer is 1.5 +/-0.5 g/m2The thickness range of the heat-sealing layer is 9.5 +/-1.5 g/m2。
The first two-dimensional code is a QR code or a DM code, and the second two-dimensional code is a QR code or a DM code.
The first two-dimensional code and the second two-dimensional code are strongly correlated, a laser coding process is adopted, the first two-dimensional code (integral code) is arranged at the position of the iron ring cover outside the D-shaped area of the easy-to-tear cover, and the second two-dimensional code (traceability code) is arranged on the aluminum film seal. The first two-dimensional code is used for point exchange, variable marketing, goods fleeing prevention, product life cycle marking and science popularization propaganda, and the second two-dimensional code is used for tracing, goods fleeing prevention and science popularization propaganda.
The possibility that the integral code is damaged before the product is opened (for example, before the milk powder can is opened) is extremely low, so that the real 'secret code' is realized, and the anti-damage effect is realized.
The integral code is directly displayed in a plain iron area and is in a sealed state finally, the sealing performance of the easy-to-tear cover is not affected, the easy-to-tear cover is not in direct contact with contents such as milk powder, and the food is safe and reliable.
The user scans the integral codes and the tracing codes to obtain corresponding data, and the use experience is good.
The integration code and the traceability code may include address links to enable variable marketing such as product science popularization, lottery, holiday promotional activities, product full life cycle tagging, and the like.
The invention also discloses a two-dimensional code anti-theft tank taking device, which comprises the two-dimensional code anti-theft metal taking cover, namely the cover adopted by the two-dimensional code anti-theft tank taking device is the two-dimensional code anti-theft metal taking cover.
In fig. 2, 7 denotes a handle on the aluminum film seal.
Fig. 3 is a schematic flow chart of a method for manufacturing a two-dimensional code anti-theft metal cover, and as shown in fig. 3, the method for manufacturing the two-dimensional code anti-theft metal cover includes:
step 301: the basic lid is obtained by stamping.
Step 302: the method comprises the steps that a laser is used for burning at a set position on the outer surface of a basic cover to generate a first two-dimensional code and an auxiliary mark, first data obtained by scanning the first two-dimensional code comprise the auxiliary mark or the first data and the auxiliary mark have a set corresponding relation, and the auxiliary mark is a character string or a pattern.
The auxiliary identifier includes, but is not limited to, a character string and a pattern.
As a specific embodiment, the auxiliary identifier is the last four bits of the address data corresponding to the first two-dimensional code.
When the auxiliary mark is a pattern, the pattern and first data obtained by scanning the first two-dimensional code have a set corresponding relation.
Wherein, step 302 is followed by: and detecting the first two-dimensional code, such as detecting whether the first two-dimensional code has the conditions of missing spraying, deformation, incomplete reading and the like.
And (3) utilizing the explosion-proof smoke purifier to adsorb and burn to generate the first two-dimensional code and the dust generated by the auxiliary identifier.
Step 303: and punching the basic cover generating the first two-dimensional code to obtain the basic cover with an opening.
The punctured region does not include a region where the first two-dimensional code is generated.
Step 304: and sealing the opening of the basic cover by adopting an aluminum film seal by adopting a heat sealing process, wherein the aluminum film seal covers the first two-dimensional code, and the aluminum film seal does not cover the auxiliary mark.
Step 305: burning the other side of the aluminum film seal sealed with the basic cover by a laser to generate a second two-dimensional code; and the first data acquired according to the first two-dimensional code and the second data acquired through the second two-dimensional code have a data association relationship.
The first data that first two-dimensional code on the same easy-tear lid corresponds and the second data that the second two-dimensional code corresponds are a set of data in the code packet, include multiunit data in the code packet, and each group of data all includes a first data and a second data.
After step 305, the method specifically includes:
and detecting the second two-dimensional code, such as detecting whether the second two-dimensional code has the conditions of missing spraying, deformation, incomplete, unreadable and the like, and checking whether the correlation between the first two-dimensional code and the second two-dimensional code is correct or not by utilizing the first two-dimensional code mark.
Utilizing an explosion-proof smoke purifier to adsorb dust generated by burning to generate a second two-dimensional code;
wherein step 304 specifically includes:
coating a protective layer, a heat sealing layer and a hot melt adhesive layer on one surface of the aluminum film seal in sequence; the protective layer is polyester resin, acrylic resin or epoxy resin; the heat sealing layer is made of polypropylene resin, polyester resin or acrylic resin.
And sealing the opening of the basic cover by adopting a heat sealing process to seal the aluminum film coated with the protective layer, the heat sealing layer and the hot melt adhesive layer.
The thickness of the protective layer is 1.5 +/-0.5 g/m2The thickness range of the heat-sealing layer is 9.5 +/-1.5 g/m2。
The laser is an infrared picosecond laser, the power of the infrared picosecond laser is 50-100W, and the wavelength is 1064 +/-0.5 nm.
The size of the first two-dimensional code is 6 x 6 mm-15 x 15 mm.
The following describes a method for manufacturing a two-dimensional code anti-theft metal cover.
The technological process of the two-dimension code anti-theft metal cover comprises the following steps: the method comprises the steps of feeding, stamping, glue injection, drying, covering, inner tagging (a first two-dimensional code), inner tagging detection, inner tagging dust removal, punching, deep drawing, curling, aluminum foil stamping pre-sealing, embossing, outer tagging (a second two-dimensional code), outer tagging detection, outer tagging dust removal, output (including detection rejection), infrared sterilization, appearance detection and packaging.
Step1, firstly, carrying out production such as basic round cover, glue injection, drying and the like by using a gantry punch press, using special coding easy-to-tear cover equipment for use, and adopting a double-channel or above multi-channel structure for an easy-to-tear cover production line.
Stamping: the cover is formed by a GT2A48 full-automatic numerical control press and a special die after punching.
Injecting glue: and (3) after the round cover is basically obtained by stamping, performing round cover glue injection production by adopting a GT2C28 high-speed rotary glue injection machine (glue injection mainly comprises the step of filling sealant in a cover groove and mainly plays a role in combined sealing of a cover and a can cover).
Drying: and after glue injection, heating in a two-section electromagnetic mode to dry the sealant.
And (4) covering: and (3) placing the dried basic cover into a coding station for conveying, utilizing a magnet to adsorb and position, and firstly carrying out integral coding on the outside of the basic cover (the general size is controlled within 6 x 6 mm-15 x 15 mm).
A coding process: A50-100W high-power infrared picosecond laser is adopted, the wavelength is 1064 +/-0.5 nm, the internal and external strong correlation data including laser burning generates graphics or digital information within 0.2-0.6 seconds, such as QR, DM and the like, and the graphics or the digital information are respectively endowed on a tinplate (the set position of the outer surface of a basic cover) and an aluminum film (the aluminum film sealing) to generate internal code and external code identification information, and correlation detection is carried out, wherein the internal and external coding processes are similar.
The detection process is that a detection procedure is carried out after the code assigning step, the codes assigned by the code assigning process are recorded, and a high-definition industrial video system or a camera and the like can be adopted.
Then punching, drawing and curling are carried out. (the punching is to punch a D-shaped inner ring by using a special die on the basis of a basic round cover, and the deep drawing and the curling are mainly to use the special die for the D-shaped ring to perform edge folding and safety protection, so that the problems of scratching and the like in the using process are prevented, and the standard method in the industry is adopted).
Step2, performing aluminum foil punching for pre-sealing and sealing, wherein an aluminum film with a thickness of 0.09mm is generally used, the upper and lower surfaces of the aluminum film are respectively composed of a protective layer and a heat sealing layer, and the coating thickness of the protective layer is generally 1.5 +/-0.5 g/m2Mainly plays a role in preventing the aluminum film from being scratched and protecting the aluminum film from being oxidized; the thickness of the coating film of the heat-sealing layer is generally 9.5 +/-1.5 g/m2The heat sealing process is generally that the upper die is 220 +/-10 ℃, the lower die is 200 +/-10 ℃, the heat sealing pressure is 0.5-0.6MPa, the speed is 80-300 times/minute, finally, the aluminum film hot melt adhesive layer is adhered to the integral code, and adhesive marks are left on the integral code after the aluminum film is torn.
Step3, carrying out embossing process on the aluminum film seal according to the appearance design, combining with the coding and the individual requirements, selecting different hollow embossing, such as central round, square, oval, heart-shaped, other irregular shapes and the like, wherein the embossing process is mainly used for increasing the strength of the aluminum film and preventing the aluminum film from wrinkling and deforming in the filling process.
And Step4, performing external code (tracing code) and detection in the D-shaped area of the easy-to-tear cover or the aluminum film embossing plane area, wherein the external code process is the same as the internal code process, and then detecting the external code, and the detection methods of the two processes are the same.
And Step5, comparing the internal and external codes, and comparing the internal and external codes through high-definition camera visual detection and computer software to determine whether the internal and external codes are consistent. If the inner code and the outer code are mistakenly and uniformly rejected, a contact bypass machine (a mechanical arm and the like) or a sinking rejection mechanism is arranged at the tail end of the production line, and when the inner code and the outer code are detected through an outer code detection point, if the inner code and the outer code detection results are inconsistent, the easily torn covers are rejected through a rejection station.
Step6, carrying out surface dust removal and infrared sterilization on the easily torn cover, and then uniformly packaging: ultraviolet irradiation intensity during infrared sterilization is 20-50 μm/cm2And the dust removal and filtration precision is more than 0.2 um.
And Step7, performing metal can manufacturing, filling, two-dimensional code activation (a first two-dimensional code and a second two-dimensional code) and packaging.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides a metal lid is got in two-dimensional code theftproof which characterized in that includes: a base cover provided with an opening sealed by an aluminum film seal adhered to an outer surface of the base cover;
one side of the basic cover, which is pasted with the aluminum film seal, is provided with a first two-dimensional code and an auxiliary identifier, one side of the aluminum film seal is pasted with the basic cover, the aluminum film seal covers the first two-dimensional code, the aluminum film seal does not cover the auxiliary identifier, the other side of the aluminum film seal is provided with a second two-dimensional code, a data association relationship is formed between first data obtained according to the first two-dimensional code and second data obtained through the second two-dimensional code, and the first data obtained by scanning the first two-dimensional code comprises the auxiliary identifier or a set corresponding relationship is formed between the first data and the auxiliary identifier; the auxiliary mark is a character string or a pattern.
2. The two-dimensional code anti-theft metal cover according to claim 1, wherein the size of the first two-dimensional code is 6 x 6mm to 15 x 15 mm.
3. The two-dimensional code anti-theft metal cover according to claim 1, wherein a protective layer, a heat sealing layer and a hot melt adhesive layer are sequentially arranged on the surface of the aluminum film seal adhered to the basic cover; the protective layer is made of polyester resin, acrylic resin or epoxy resin; the heat sealing layer is made of polypropylene resin, polyester resin or acrylic resin.
4. The two-dimensional code anti-theft metal cover according to claim 3, wherein the thickness range of the protective layer is 1.5 ± 0.5g/m2The thickness range of the heat sealing layer is 9.5 +/-1.5 g/m2；
The opening is a D-shaped opening.
5. The two-dimensional code anti-theft tank is characterized by comprising the two-dimensional code anti-theft metal cover according to any one of claims 1 to 4.
6. A two-dimension code anti-theft metal cover preparation method is used for preparing the two-dimension code anti-theft metal cover according to any one of claims 1 to 5, and comprises the following steps:
obtaining a basic cover by stamping;
generating a first two-dimensional code and an auxiliary mark by burning at a set position on the outer surface of the basic cover through a laser, wherein first data obtained by scanning the first two-dimensional code comprises the auxiliary mark or the first data and the auxiliary mark have a set corresponding relation, and the auxiliary mark is a character string or a pattern;
punching a basic cover for generating a first two-dimensional code to obtain a basic cover with an opening;
sealing the opening of the basic cover by adopting an aluminum film seal through a heat sealing process, wherein the aluminum film seal covers the first two-dimensional code, and the aluminum film seal does not cover the auxiliary identifier;
burning the other side of the aluminum film seal sealed with the basic cover by a laser to generate a second two-dimensional code; and the first data acquired according to the first two-dimensional code and the second data acquired through the second two-dimensional code have a data association relationship.
7. The method for preparing the two-dimensional code anti-theft metal cover according to claim 6, wherein the step of sealing the opening of the basic cover by using an aluminum film seal by using a heat sealing process specifically comprises the following steps:
coating a protective layer, a heat sealing layer and a hot melt adhesive layer on one surface of the aluminum film seal in sequence; the protective layer is made of polyester resin, acrylic resin or epoxy resin; the heat sealing layer is made of polypropylene resin, polyester resin or acrylic resin;
and sealing the opening of the basic cover by sealing the aluminum film coated with the protective layer, the heat sealing layer and the hot melt adhesive layer by adopting a heat sealing process.
8. The method for manufacturing the two-dimensional code anti-theft metal cover according to claim 7, wherein the thickness range of the protective layer is 1.5 ± 0.5g/m2The thickness range of the heat sealing layer is 9.5 +/-1.5 g/m2。
9. The method for manufacturing the two-dimensional code anti-theft metal cover according to claim 6, wherein the laser is an infrared picosecond laser, the power of the infrared picosecond laser is 50-100W, and the wavelength is 1064 +/-0.5 nm.
10. The method for manufacturing the two-dimensional code anti-theft metal cover according to claim 6, wherein the size of the first two-dimensional code is 6 x 6mm to 15 x 15 m.
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| CN (1) | CN113682641A (en) |
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