Lightweight aluminum packaging tin cover and packaging container

Abstract

The utility model provides a light-weight aluminum packaging tin cover and a packaging container, and belongs to the technical field of packaging covers. The inner surface and the outer surface of the cover body are coated with films; the pull ring is arranged on the cover body; the scribed line is arranged along the edge of the cover body and is used for the pull ring to tear the cover body; the expansion ring is arranged in the circumferential direction of the cover body, radiates outwards from the center of the cover body and is located between the pull ring and the scribed line; the expansion ring comprises an upper convex expansion ring and a lower concave expansion ring which are arranged at intervals. The inner surface and the outer surface of the cover body are both covered with the films, the packaging weight can be reduced, it can be guaranteed that after a can is eaten, the can can be easily and conveniently compressed and then recycled, the strength of the cover body can be improved through the expansion ring, the pressure resistance of the cover body is guaranteed, and meanwhile the packaging requirements of various can contents are met; and the carrying of stored food during ocean-going tasks is facilitated, and the recycling of packaging garbage after eating is also facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging covers, in particular to a lightweight aluminum packaging can cover and a packaging container comprising the lightweight aluminum packaging can cover. Background Art

[0002] Compared with other packaging methods (such as plastic, glass and other packaging containers), metal packaging has the characteristics of high strength, good uniformity, not easy to break, easy to open, environmentally friendly and recyclable, and is widely praised by consumers. The common materials used for food packaging can lids are tin-plated iron or chrome-plated iron. In order to protect the service life of the metal substrate and the shelf life of the food, it is necessary to add a protective layer on the metal surface to prevent the chemical reaction between the contents and the metal substrate. This protective layer is the thin sheet coating.

[0003] According to the application requirements of the new market, this kind of iron easy-open can lid packaging has two difficulties. The first is that the density of iron is high, so the packaging can lid made of iron is heavy and very inconvenient to carry. In addition, due to the high hardness of iron, recycling and processing is also relatively difficult, requiring special mechanical equipment. The second is to meet the protection effect of canned food. The current common coatings are applied according to the acidity of the contents, high protein content, or high salt content. Different coating protective layers are applied. This process has many limitations and is not conducive to the versatility of the material production process. Utility Model Content

[0004] In view of this, in order to solve the shortcomings existing in the background technology, on the one hand, the utility model provides a lightweight aluminum packaging can cover, which can reduce the weight of the packaging by covering the inner and outer surfaces of the cover with a film, and can ensure that the canned food can be easily compressed and recycled after consumption. The setting of the expansion ring can increase the strength of the cover body and ensure the pressure resistance of the cover body. At the same time, it meets the packaging requirements of various canned contents, which is conducive to the carrying of reserve food during ocean missions and also convenient for the recycling of packaging waste after consumption.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lightweight aluminum packaging can cover, comprising:

[0007] A cover body, both inner and outer surfaces of which are covered with a film;

[0008] A pull ring, which is arranged on the cover body;

[0009] A score line is provided along the edge of the cover body, and is used for the pull ring to tear the cover body;

[0010] An expansion ring, which is arranged along the circumference of the cover body, radiates outward from the center of the cover body, and is located between the pull ring and the score line;

[0011] The expansion ring comprises an upward convex expansion ring and a downward concave expansion ring which are arranged at intervals.

[0012] Preferably, the upwardly convex expansion ring arranged near the engraved line is a C-shaped reinforcement rib with an upward convexity.

[0013] Preferably, the concave expansion ring is an expansion ring with a cover surface strengthening function, and together with the convex C-shaped reinforcing rib, it has both upward expansion molding and downward molding, and the positive and negative molding strengthens the cover surface, which can better improve the pressure resistance of the cover surface.

[0014] Preferably, the pull ring is installed on the cover body by means of a pull ring pin and a rivet.

[0015] Preferably, the film is a multi-layer PET film with high barrier properties, which can effectively form a protective layer with broad resistance.

[0016] On the other hand, the utility model also provides a packaging container, including a can body and the above-mentioned lightweight aluminum packaging can cover.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The lightweight aluminum packaging can cover provided by the utility model can reduce the weight of the packaging by covering the inner and outer surfaces of the cover body with thin films, and can also ensure that the canned food can be easily compressed and recycled after consumption. The arrangement of the expansion ring can increase the strength of the cover body and ensure the pressure resistance of the cover body, while meeting the packaging requirements of various canned contents. Applying it to packaging containers is conducive to carrying reserve food during ocean-going missions and is also convenient for recycling packaging waste after consumption.

[0019] The utility model provides a lightweight aluminum packaging can cover, which is coated with a coating material and then formed. The cover body is matched with the can body to form a packaging container, which can be suitable for different contents and meet the customer market. One packaging container is suitable for packaging a variety of meats, fish, fruits, vegetables and the like. After consumption, the outer packaging is light in weight and the material is soft and easy to be compressed and collected, which is suitable for saving space volume in special environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 for Figure 2 The partial schematic diagram of the center III;

[0023] Figure 4for Figure 2 The partial schematic diagram of the middle II;

[0024] Figure 5 is a schematic diagram of the structure of a packaging container;

[0025] In the figure, 1, cover body; 11, pull ring; 12, film; 13, score line; 14, expansion ring; 111, ring-lifting nail; 112, rivet; 141, C-shaped reinforcement rib; 142, downward forming expansion ring; 2, can body; 3, packaging container. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] like Figure 1-5 As shown, the utility model provides a lightweight aluminum packaging can cover, comprising:

[0030] The cover body 1 has a film 12 on both the inner and outer surfaces thereof, wherein the film 12 can be preferably formed by a double-roll extrusion process to attach the film 12 to the inner and outer surfaces of the cover body 1;

[0031] A pull ring 11, which is arranged on the cover body 1;

[0032] A score line 13 is provided along the edge of the cover body 1 and is used for the pull ring 11 to tear the cover body 1. The score line 13 is preferably in the shape of a circular structure along the edge of the cover body 1;

[0033] The expansion ring 14 is arranged along the circumference of the cover body 1, radiates outward from the center of the cover body 1, and is located between the pull ring 11 and the score line 13. The expansion ring 14 is mainly arranged to increase the strength of the cover surface, ensure the pressure resistance of the cover surface, and at the same time meet the aesthetic effect of the cover surface;

[0034] The expansion ring 14 includes an upward convex expansion ring and a downward concave expansion ring that are arranged at intervals, wherein the upward convex expansion ring and the downward concave expansion ring are positive and negative molded expansion rings designed on the surface of the cover body 1.

[0035] In the present invention, in order to protect the area of ​​the score line 13, improve the strength of the aluminum cover 1, and prevent the score line 13 on the cover from breaking when the internal pressure of the packaging container 3 is applied, the convex expansion ring arranged near the score line 13 is a C-shaped reinforcement rib 141 with a convex shape. In addition, several circles of downwardly formed expansion rings 142 (concave expansion rings) are designed at the center of the cover 1, mainly to strengthen the cover 1, and at the same time shrink the material of the cover 1 after stretching and forming to maintain the tension and strength of the cover.

[0036] In the present invention, the concave expansion ring is an expansion ring with a cover surface strengthening function. Together with the convex C-shaped reinforcing rib 141, it has both upward expansion molding and downward molding, and the positive and negative molding strengthens the cover surface, which can better improve the pressure resistance of the cover surface.

[0037] In the present invention, the pull ring 11 is installed on the cover body 1 through the ring pin 111 and the rivet 112. The ring pin 111 is used to facilitate the opening of the cover surface. The rivet 112 is used to rivet the pull ring 11 and the cover body 1 together. When opening the cover body 1, the pull ring 11 pierces the cover body 1 through the lever action, and then the cover body 1 is gradually torn open along the track of the notch until the cover body 1 is completely opened.

[0038] In the present invention, the film 12 is a multi-layer PET film 12 with high barrier properties, which can effectively form a protective layer with broad resistance.

[0039] On the other hand, the utility model also provides a packaging container 3, including a can body 2 and the above-mentioned lightweight aluminum packaging can cover. The utility model applies the lightweight aluminum packaging can cover to the packaging container 3, which is beneficial for carrying reserve food during ocean-going missions and also convenient for recycling packaging waste after consumption.

[0040] The above are only preferred specific implementations of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A lightweight aluminum packaging can cover, characterized in that: include: A cover body, both inner and outer surfaces of which are covered with a film; A pull ring, which is arranged on the cover body; A score line is provided along the edge of the cover body, and is used for the pull ring to tear the cover body; An expansion ring, which is arranged along the circumference of the cover body, radiates outward from the center of the cover body, and is located between the pull ring and the score line; The expansion ring comprises an upward convex expansion ring and a downward concave expansion ring which are arranged at intervals.

2. The lightweight aluminum packaging can cover according to claim 1, characterized in that: The upwardly convex expansion ring arranged near the engraved line is a C-shaped reinforcement rib with an upward convexity.

3. The lightweight aluminum packaging can cover according to claim 1, characterized in that: The concave expansion ring is an expansion ring with a cover surface strengthening function. Together with the convex C-shaped reinforcement rib, it has both upward expansion molding and downward molding, and the positive and negative molding strengthens the cover surface, which can better improve the pressure resistance of the cover surface.

4. The lightweight aluminum packaging can cover according to claim 1, characterized in that: The pull ring is installed on the cover body through a ring pin and a rivet.

5. A lightweight aluminum packaging can cover according to any one of claims 1 to 4, characterized in that: The film is a multi-layer PET film with high barrier properties, which can effectively form a protective layer with broad resistance.

6. A packaging container, characterized in that: The invention comprises a can body and a lightweight aluminum packaging can cover as claimed in any one of claims 1 to 5.

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