Remote readable label for detecting sealing environment of sealed package

Abstract

The invention discloses a remote readable label for detecting a sealed package sealing environment in the technical field of package sealing labels, which comprises a non-sealable shell, one side in the shell is provided with an air cavity structure capable of shrinking and expanding along with the change of external air pressure of the shell, and the other side in the shell is fixedly provided with a label detection line auxiliary damage structure. An NFC label is arranged between the air cavity structure and the label detection line auxiliary damage structure in the shell, the NFC label comprises a coil main body and an unsealed detection line connected with the coil main body, and the coil main body part of the NFC label is relatively fixed with the air cavity structure; the non-unsealing detection line of the NFC label is in contact with the label detection line auxiliary damage structure and then is separated from the label detection line auxiliary damage structure to be damaged. According to the sealing state remote detection label based on the air pressure in the package, the sealing state of the vacuum package can be remotely read on a large scale.

Description

Technical Field

[0001] The invention relates to the technical field of package sealing labels, in particular to a remotely readable label for detecting the sealing environment of a sealed package. Background Art

[0002] Vacuum-packed products are highly trusted by manufacturers and consumers due to their high versatility, sealing, moisture-proof and light-shielding, tensile and puncture resistance and many other characteristics. Currently, the testing of vacuum packaging sealing conditions mostly comes from the testing and control of the sealing conditions before and after the vacuum packaging by the vacuum packaging processor, as well as the identification and judgment of the products by the end-sales end of the supply chain. However, there are very few examples and solutions for testing the sealing status of products during transportation, transshipment, warehousing, etc.

[0003] The reasons may be the following three situations. First, some vacuum-packed products are ready-to-eat foods with a shelf life ranging from a few days to four weeks, and most of them do not exceed half a year. The supply chain is short, the product turnover and transportation process are few, and there is no long-term storage demand. Second, the appearance of products with damaged or bloated vacuum packaging is quite different from that of products without quality problems, and it is easy to distinguish them. Through manual observation, there is an opportunity to detect products with failed sealing status in each link of channel management. Third, there is usually a layer of conventional printed packaging bags or packaging boxes outside the vacuum packaging. Some merchants choose to affix an anti-counterfeiting label similar to a seal on the seal of the packaging box, such as CN202023306021.6, a sealing label, to replace the vacuum state detection to ensure the integrity of the goods during transportation.

[0004] For high-value-added products with limited quantity or value as collectible gifts, sealing monitoring covering all links of transportation and warehousing from production to sales can provide key information to ensure product quality and strengthen channel management. In addition to preventing leakage and packaging damage caused by quality problems of the packaging itself or improper operation, and deterioration and bloating caused by product quality problems, product losses caused by human factors such as product substitution, cross-selling, repackaging, and adulteration of inferior products are greater challenges faced by channel management. In addition, the vacuum state detection method of manually observing the appearance of the packaging is time-consuming and labor-intensive, requires optical visibility, and is inefficient.

[0005] Based on this, the present invention designs a remotely readable tag for detecting the sealing environment of a sealed package to solve the above-mentioned problem. Summary of the invention

[0006] The purpose of the invention is to provide a remotely readable tag for detecting the sealing environment of a sealed package to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the invention provides the following technical solutions: a remotely readable tag for detecting the sealing environment of a sealed package, comprising a non-sealable shell, one side of the shell is provided with an air cavity structure that can shrink and expand along with the change of the external air pressure of the shell, the other side of the shell is fixedly provided with a tag detection line auxiliary destruction structure, an NFC tag is provided in the shell between the air cavity structure and the tag detection line auxiliary destruction structure, the NFC tag comprises a coil body and an unopened detection line connected to the coil body, the coil body part of the NFC tag is relatively fixed to the air cavity structure, and the unopened detection line of the NFC tag is destroyed after contacting and then separating from the tag detection line auxiliary destruction structure.

[0008] Preferably, the shell is composed of a piston cylinder and an end cover plate, the air cavity structure is composed of a piston cylinder with a fitted piston body built in it, and the coil main body of the NFC tag is fixed to the piston body.

[0009] Preferably, the coil body of the NFC tag and the unopened detection line are arranged in a bent and folded state, and a plastic sheet is arranged between the coil body and the unopened detection line, one side of the plastic sheet is relatively fixed to the piston body, and the other side is provided with sharp teeth, which point to and are close to the bent side of the coil body and the unopened detection line.

[0010] Preferably, the auxiliary destruction structure of the label detection line is a contact plate with an adhesive layer provided on the inner surface, the outer side of the contact plate is fixed to the end cover plate, and the adhesive layer is provided with raised adhesive points.

[0011] Preferably, the tag detection line auxiliary destruction structure is a contact plate with three-claw nails on the inner surface, the outer side of the contact plate is fixed to the end cover plate, and the tip of the three-claw nail faces one side of the NFC tag.

[0012] Preferably, the end cover plate and the contact plate are provided with vents communicating with the inner and outer sides of the shell.

[0013] Preferably, the shell is composed of a flat box body and a box bottom plate, the air cavity structure is a rubber airbag, a movable partition is provided between the NFC tag and the outer wall of the rubber airbag, and the rubber airbag, the movable partition and the NFC tag are abutted against each other in sequence from top to bottom and relatively fixed.

[0014] Preferably, the NFC tag is arranged in a flat state, and the tag detection line auxiliary destruction structure is a corrugated plate with an uneven upper surface, the corrugated plate is fixed to the bottom plate of the box, a glue-containing layer is arranged on the corrugated plate, and the corrugated plate is arranged below the unopened detection line of the NFC tag.

[0015] Preferably, one side wall of the flat box body is open as a vent connecting the inner and outer sides of the shell.

[0016] Compared with the prior art, the invention has the following beneficial effects:

[0017] 1. The vacuum status monitoring label of the present invention fills the gap in the current market for contactless, batch vacuum status detection solutions. It can read the sealing status of vacuum packages in large quantities and remotely, meeting the needs of high-speed and convenient packaging integrity detection in batch warehousing.

[0018] 2. The vacuum status monitoring label detection device of the present invention is not only not affected by the obstruction of the outer packaging, but also can realize the remote reading of the return values ​​of multiple labels, thereby improving efficiency.

[0019] 3. The vacuum status monitoring label of the present invention can help manufacturers to conduct good channel management and ensure that the goods remain in a vacuum state and are not opened manually throughout the entire process from production and packaging to sales and shelf placement.

[0020] 4. The vacuum status monitoring label of the present invention can effectively manage the real-time inventory of distribution channels at all levels by remotely reading labels. At the same time, the label can be used to detect leaking and damaged packaging in advance, and unqualified products caused by product deterioration and inflation can be eliminated.

[0021] 5. For high value-added products, the vacuum status monitoring label of the present invention is more like an anti-counterfeiting seal, which ensures the consistency of the package and the product in the package during the whole process and will not be replaced. It can effectively detect channel diversion, product substitution, adulteration, refilling defective products with original packaging, and passing inferior products off as good ones. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0024] Figure 2 This is a structural diagram of step 1 of the working principle of embodiment 1 of the present invention;

[0025] Figure 3 This is a structural diagram of step 2 of the working principle of embodiment 1 of the present invention;

[0026] Figure 4 This is a structural diagram of step three of the working principle of embodiment 1 of the present invention;

[0027] Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-housing, 103-flat box body, 104-box bottom plate, 2-NFC tag, 201-coil body, 202-unopened detection line, 3-piston body, 4-plastic sheet, 5-vent, 6-movable partition, 7-contact plate, 8-wavy plate, 9-rubber airbag. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0031] Embodiment 1:

[0032] See also Figure 1 The invention provides a technical solution: a remotely readable tag for detecting the sealing environment of a sealed package, comprising a non-sealable shell 1, the shell 1 is composed of a piston cylinder 101 and an end cover plate 102, which is convenient for internal structure installation, the piston cylinder 101 and the end cover plate 102 can be glued or locked with buckles or screws, one side of the shell needs to be sealed, and the other side has air holes or is semi-open, and the end cover plate 102 is provided with an air vent 5 connecting the inside and outside of the shell 1; the shell 1 has no special shape and size requirements, the shell is made of non-metallic material, and metal material can easily affect the reading of NFC tags, and the shell needs to have a certain strength in the direction of the piston stroke to avoid deformation due to external force squeezing and affecting the tag state.

[0033] One side of the shell 1 is provided with an air cavity structure that can shrink and expand with the change of the external air pressure of the shell 1. The air cavity structure is composed of a piston body 3 built into a piston cylinder 101. The air chamber is required to be airtight, and the size of the air chamber should occupy about 50% of the overall state detection device, that is, the initial state volume of the air cavity structure is about 50% of the internal volume of the shell 1; since there is almost no air in the vacuum packaging, the volume of the gas in the air chamber after expansion can theoretically reach more than 80% of the detection device. Increasing the size of the air chamber can effectively ensure that the unsealing detection line of the NFC tag can be fully fitted and pressed with the contact plate of the device after the package is vacuumed. There are no special requirements for the gas filled in the air chamber. Generally speaking, the more difficult it is to liquefy and condense gases such as helium, hydrogen, oxygen, nitrogen, etc., they are close to ideal gases at normal temperature and pressure. Among them, nitrogen is often used in food nitrogen-filled packaging. It is a gas that will not have too much impact on the food itself even if it is in direct contact with the food. It is very suitable for filling in a closed air chamber as a filling gas to drive the piston movement. If the cost is to be controlled, ordinary air is also applicable and will not have any impact on the quality of the food in the package; it is required to ensure that the air chamber is sealed while ensuring good sliding mobility. The piston body 3 is recommended to be made of elastic materials such as rubber to ensure that the label opening detection point is closely fitted with the glue layer.

[0034] A tag detection line auxiliary destruction structure is fixedly arranged on the other side of the shell 1, and an NFC tag 2 is arranged between the air cavity structure and the tag detection line auxiliary destruction structure in the shell 1. The NFC tag 2 includes a coil body 201 and an unopened detection line 202 connected to the coil body 201. A diamond-shaped indentation for preventing secondary adhesion is provided at the unsealing detection part of the tag, so that it is easy to break when the unsealing detection part is pulled by the movement of the piston; the coil body 201 of the NFC tag 2 is fixed to the piston body 3, and the coil body 201 of the NFC tag 2 and the unopened detection line 202 are arranged in a bent and folded state, and the coil body 201 and the unopened A plastic sheet 4 is arranged between the detection lines 202, one side of the plastic sheet 4 is relatively fixed to the piston body 3, and a slit is formed in the middle to store the coil body 201 of the NFC tag, so as to ensure that the tag body is not pulled and damaged during the back and forth movement of the piston; the other side of the plastic sheet 4 is provided with sharp teeth, pointing to and close to the bending side of the coil body 201 and the unopened detection line 202, and cooperating with the aforementioned diamond-shaped indentation structure for preventing secondary adhesion, so that when the piston body 3 retreats, the unopened detection line 202 is effectively torn off with the help of the sharp teeth; the unopened detection line 202 of the NFC tag 2 is destroyed after contacting and separating from the tag detection line auxiliary destruction structure.

[0035] The auxiliary destruction structure of the label detection line is a contact plate 7 with an adhesive layer on the inner surface. The outer side of the contact plate 7 is fixed to the end cover plate 102, and a raised adhesive point is provided on the adhesive layer. The raised adhesive point on the contact plate 7 is to reduce the contact area, increase the pressure at the adhesive point, and ensure close contact at the adhesive point; as another option, a three-claw nail with the tip facing upward can be installed around the raised point of the contact plate, and the tip of the three-claw nail is facing the side of the NFC tag 2. The tip of the three-claw nail is bent by the compression of the piston by gas expansion to buckle the unsealing detection area of ​​the label; a vent 5 is provided on the contact plate 7 to connect the inside and outside of the shell 1.

[0036] Working principle example:

[0037] like Figure 2 As shown, the initial state is before vacuuming, the air pressure in the packaging bag is consistent with the external air pressure, the piston body 3 is located at about 40-50% of the stroke in the piston cylinder 101, the NFC tag 2 and the contact plate 7 are in a non-contact state, and the NFC tag is in a state where no information is written;

[0038] like Figure 3 As shown, in the vacuum state, the packaging bag is sealed and vacuumed at this time, and the air pressure in the packaging bag is gradually lower than the external air pressure. It can be deduced from Boyle's theorem that when the pressure of an ideal gas decreases under the condition of constant temperature, the volume will expand. Therefore, when the external environment becomes a low-pressure environment due to the vacuum operation, the filling gas in the piston cylinder 101 expands, pushing the piston body 3 to move to the right, and the unopened detection line 202 on the NFC tag 2 is bonded to the glue layer on the contact plate 7 or fixed with the three-claw nail, and the product identity traceability code is written by the host computer;

[0039] like Figure 4 As shown, the air pressure is restored. At this time, the package is damaged, leaking or swollen. When the external air pressure returns to normal, the gas in the piston cylinder 101 returns to the normal pressure volume, the piston body 3 retreats to the left, and the serrated edge of the plastic sheet 4 cooperates with the diamond-shaped anti-secondary adhesion indentation on the NFC tag 2 to tear off the unopened detection line 202. At this time, the read information displayed by the NFC tag to the outside becomes unopened.

[0040] When the product is placed in a vacuum packaging bag for vacuuming, the vacuum state detection device is placed in the bag at the same time. At this time, the NFC tag can be in a state where no information is written, because the NFC tag can be used to write the product identity traceability code later using the host computer. Before and after vacuuming, the NFC tag reading result will return unopened information.

[0041] When the product deteriorates and bloats, the vacuum packaging bag is not damaged. Due to the generation of gas during the deterioration process, the air pressure in the package increases. Ideally, the volume and pressure of the gas in the air cavity structure are inversely proportional. In the early stage, when the air pressure in the package is still much lower than the external atmospheric pressure, the position of the piston body 3 will retract, but it will not be too far away from the end cover plate 102, and it will not necessarily break the unopened detection line 202 of the NFC tag 2 to change the label information. As the gas accumulates, the position of the piston body 3 will be slowly pushed away from the end cover plate 102 until the unopened detection line 202 of the NFC tag 2 is broken. Only then will the external status of the NFC change to opened, indicating that there is a problem with this product.

[0042] When the vacuum package is opened manually or leaks due to damage, the air pressure outside the detection device will return to atmospheric pressure in a very short time, causing the piston position to retract quickly, breaking the thin wire in the NFC tag unsealing detection area, and changing the NFC tag status to unsealed. Even if the tag device is vacuum packed again later, the NFC tag will be driven by the piston to fit the contact plate again, and the possibility of the broken aluminum foil wire being attached intact is very small. When read by a reading device, the unsealed status of the NFC tag will be written to the background server and recorded along with the reading. Since the reading of NFC tags often occurs in various links of the supply chain, including but not limited to the warehousing and storage and transportation of goods, when the tag is torn, this information can be synchronized to the background database in time.

[0043] Due to the remote identifiable nature of NFC tags, the NFC tag reader that comes with the device can be installed on both sides of the conveyor belt in and out of the warehouse, or a handheld identification device can be used to remotely and batch read NFC tags within the identification distance. When an opened tag is read, an alarm will be issued to help warehouse managers promptly discover inventory with packaging or product problems.

[0044] It should be noted that since the remotely readable tag is based on RFID technology, if the product is packaged in a sealed metal box or can, or the tag is wrapped in a sealed aluminized composite bag (containing VMPET interlayer or AI pure aluminum layer) along with the product, NFC tag 2 is likely to be unreadable.

[0045] At the same time, the device is also sensitive to drastic temperature drops, such as in a refrigerated freezing environment. Extreme temperatures (such as freezing) can affect the identification of the tag. When the external air pressure remains unchanged, the low temperature environment causes the volume of the gas in the air chamber to shrink, causing the piston position to retract, resulting in the NFC tag 2 being torn off before the normal air pressure is restored.

[0046] Embodiment 2:

[0047] Based on the technology of the first embodiment, considering further compressing the volume of the device so as to facilitate placement in a flat packaging bag, based on the technology of the embodiment, this embodiment discloses another device structure:

[0048] See also Figure 5 A remotely readable tag for detecting the sealing environment of a sealed package comprises a non-sealable shell 1, the shell 1 is composed of a flat box body 103 and a box bottom plate 104, one side of the shell 1 is provided with an air cavity structure that can shrink and expand with the change of the external air pressure of the shell 1, the air cavity structure is a rubber airbag 9, the other side of the shell 1 is fixedly provided with a label detection line auxiliary destruction structure, an NFC tag 2 is provided in the shell 1 between the air cavity structure and the label detection line auxiliary destruction structure, a movable partition 6 is provided between the NFC tag 2 and the outer wall of the rubber airbag 9, and the rubber airbag 9 , the movable partition 6 and the NFC tag 2 are abutted against each other in sequence and relatively fixed from top to bottom, the NFC tag 2 is arranged in a flat state, the NFC tag 2 includes a coil body 201 and an unopened detection line 202 connected to the coil body 201, the tag detection line auxiliary destruction structure is a wave plate 8 with an uneven upper surface, the wave plate 8 is fixed on the box bottom plate 104, and the wave plate 8 is arranged below the unopened detection line 202 of the NFC tag 2, and the unopened detection line 202 of the NFC tag 2 is destroyed after contacting and separating from the tag detection line auxiliary destruction structure;

[0049] The air cavity structure is changed from a piston cylinder 101 and a piston body 3 to a rubber airbag 9 which is attached to the top of the shell and occupies the main volume of the detection device. The coil body 201 of the NFC tag 2 is fixed on the movable partition 6, and the bottom surface of the corrugated plate 8 is provided with a rubber layer fixed on the box bottom plate 104.

[0050] Its working process is similar to that of the piston-type detection device. In a vacuum environment, the internal gas of the rubber airbag expands and squeezes the inner wall of the airbag, causing the airbag to expand in all directions, and then squeezes the movable partition 6 with the NFC tag 2 on the lower side of the airbag. The movable partition 6 moves down and fits the corrugated plate 8 of the box bottom plate 104. There is a glue layer on the protrusion on the corrugated plate 8, which is adhered and fixed to the aluminum foil circuit of the unsealing detection area of ​​the NFC tag 2. As long as the negative pressure is maintained in the package, the NFC tag will always maintain close contact with the bottom contact plate and will not be damaged due to external displacement and vibration.

[0051] When the vacuum package is torn, air enters, and the air pressure in the package gradually returns to normal, the rubber airbag 9 shrinks to its normal size. The use of the rubber airbag reduces the requirements for the air chamber's sealing and the piston's good mobility in label production, greatly reducing the difficulty of label production.

[0052] The advantage of the piston version structure is that the detection device can be made quite small and flat, and there is no need to worry about the airbag rubber being in an expanded state for a long time, causing plastic deformation, and being difficult to retract or insufficiently retracting after the air pressure returns to normal, thus affecting the detection effect of the label.

[0053] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0054] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0055] Although embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A remotely readable tag for detecting the sealing environment of a sealed package, characterized in that: The invention comprises a non-sealable shell (1), wherein an air cavity structure which can expand and contract as the air pressure outside the shell (1) changes is arranged on one side of the shell (1), and a tag detection line auxiliary destruction structure is fixedly arranged on the other side of the shell (1), and an NFC tag (2) is arranged in the shell (1) between the air cavity structure and the tag detection line auxiliary destruction structure, wherein the NFC tag (2) comprises a coil body (201) and an unopened detection line (202) connected to the coil body (201), wherein the coil body (201) of the NFC tag (2) is relatively fixed to the air cavity structure, and the unopened detection line (202) of the NFC tag (2) is destroyed after contacting and separating from the tag detection line auxiliary destruction structure.

2. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 1, characterized in that: The housing (1) is composed of a piston cylinder (101) and an end cover plate (102); the air cavity structure is composed of a piston cylinder (101) having a fitted piston body (3) built in the piston cylinder (101); and the coil body (201) of the NFC tag (2) is fixed to the piston body (3).

3. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 2, characterized in that: The coil body (201) and the unopened detection line (202) of the NFC tag (2) are arranged in a bent and folded state, and a plastic sheet (4) is arranged between the coil body (201) and the unopened detection line (202); one side of the plastic sheet (4) is relatively fixed to the piston body (3), and the other side is provided with sharp teeth pointing to and close to the bent side of the coil body (201) and the unopened detection line (202).

4. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 3, characterized in that: The label detection line auxiliary destruction structure is a contact plate (7) with an adhesive layer on its inner surface, the outer side of the contact plate (7) is fixed to the end cover plate (102), and the adhesive layer is provided with raised adhesive points.

5. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 3, characterized in that: The tag detection line auxiliary destruction structure is a contact plate (7) with three-claw nails arranged on the inner surface, the outer side of the contact plate (7) is fixed to the end cover plate (102), and the tip of the three-claw nail faces one side of the NFC tag (2).

6. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 4 or 5, characterized in that: The end cover plate (102) and the contact plate (7) are provided with vents (5) communicating with the inner and outer sides of the housing (1).

7. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 1, characterized in that: The housing (1) is composed of a flat box body (103) and a box bottom plate (104); the air cavity structure is a rubber airbag (9); a movable partition (6) is provided between the NFC tag (2) and the outer wall of the rubber airbag (9); the rubber airbag (9), the movable partition (6) and the NFC tag (2) are abutted against each other in sequence and relatively fixed.

8. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 7, characterized in that: The NFC tag (2) is arranged in a flat state, the tag detection line auxiliary destruction structure is a wave plate (8) with an uneven upper surface, a rubber layer is arranged on the wave plate (8), the wave plate (8) is fixed on the box bottom plate (104), and the wave plate (8) is arranged below the unopened detection line (202) of the NFC tag (2).

9. A remotely readable tag for detecting the sealing environment of a sealed package according to claim 7, characterized in that: One side wall of the flat box body (103) is open to serve as a vent (5) communicating with the inside and outside of the outer shell (1).

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