Metal cover of packaging tin and packaging metal tin

Abstract

The utility model provides a packaging tin metal cover and packaging tin, the packaging tin metal cover comprises a metal top cover of thin metal skin, a metal base of thin metal skin and a plastic rotating piece, the metal top cover comprises a cover top and a cover ring surrounding the cover top, the metal base is annular, the lower side of the metal base and a tin body can be integrally formed or connected in a sleeved mode, and the plastic rotating piece is arranged on the metal base. The upper side of the cover ring can be installed with the metal top cover in a matched mode so that the metal top cover can seal the upper side opening of the metal base, a first pasting table and a second pasting table are arranged at the corresponding positions of the cover ring and the metal base respectively, and the plastic rotating piece comprises a first fixing piece and a second fixing piece which are rotationally connected. The first fixing piece is pasted and fixed on the first pasting table, and the second fixing piece is pasted on the second pasting table, so that the metal top cover is rotationally connected with the metal base, and the opening of the metal base can be closed and opened. Compared with the prior art, the device is simple in structure, low in cost and easy to manufacture.

Description

Technical Field

[0001] The utility model relates to the field of packaging, in particular to a packaging can metal cover and a packaging metal can. Background Art

[0002] At present, common packaging materials in the packaging field are glass, paper, plastic, metal and composite materials. Among the above materials, glass has poor impact resistance and is too heavy, with limited places of use, making it difficult to use for disposable packaging; paper has poor sealing and corrosion resistance, and plastic has serious pollution; metal packaging has both good sealing and good corrosion resistance, but the cost of metal packaging is often relatively high. Currently, tinplate is often used as a common material for metal packaging.

[0003] Tinplate, also known as tin-plated steel sheet, refers to cold-rolled low-carbon steel sheet or strip coated with commercial pure tin on both sides. Tin mainly prevents corrosion and rust. It combines the strength and formability of steel with the corrosion resistance, solderability and beautiful appearance of tin in one material, and has the characteristics of corrosion resistance, non-toxicity, high strength and good ductility. However, when using tinplate containers, plastic lids are often used as the lids of tinplate containers. It is difficult to print the can body and the can lid using the same process, which makes the appearance of the container not beautiful enough, and the lid will still cause pollution when the can is recycled.

[0004] Referring to Chinese patent CN202021250113, when a metal cover is used as the lid of a container, the cover and the container body are often completely separated. The cover is connected to the container body through a threaded connection or directly snapped onto the container body. This connection method often brings inconvenience to users during use.

[0005] For this reason, with reference to Chinese patent CN201010607979, a metal storage box is disclosed, wherein the box cover is in sheet shape and a connecting strip is punched during processing, the end of the connecting strip forms a rotating shaft, a connecting piece is welded on the box body, two storage cavities are arranged on the connecting piece, and the rotating shaft is installed in the storing cavity so that the box cover and the box body are rotatably connected. After the storage box is processed, in order to seal the box cover with the box body, a sealing plug needs to be assembled on the box cover, and in order to rotatably connect the box cover with the box body, the connecting piece needs to be welded with the box body first, and then the rotating shaft is installed in the storing cavity. Although the storage box made by this method connects the box cover with the box body, and opens and closes by turning over, however, when producing this storage box, after the box cover, the box body, the connecting piece, and the connecting strip and the rotating shaft on the box cover are produced, a connecting piece must be welded on the box cover, and then the rotating shaft of the connecting piece is assembled in the connecting piece, which requires welding, and the equipment is complicated, the process is many, and the cost is high.

[0006] Therefore, a kind of can lid and jar that can solve the above problems are badly needed. Utility Model Content

[0007] The utility model aims to provide a packaging can metal cover and a packaging metal can, which have simple structure, low cost and are easy to manufacture.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a metal cover for a packaging can, comprising a metal top cover with a thin metal skin, a metal base with a thin metal skin and a plastic rotating sheet, the metal top cover comprising a cover top and a cover ring surrounding the cover top, the metal base is ring-shaped, and the lower side of the metal base can be integrally formed or sleeved with the can body, and the upper side can be installed in cooperation with the metal top cover so that the metal top cover covers the upper opening of the metal base, and the corresponding positions of the cover ring and the metal base are respectively provided with a first pasting platform and a second pasting platform, and the plastic rotating sheet comprises a first fixing member and a second fixing member, the first fixing member is rotatably connected to the second fixing member, and the first fixing member is pasted and fixed on the first pasting platform, and the second fixing member is pasted on the second pasting platform, so that the metal top cover is rotatably connected to the metal base and can close and open the opening of the metal base.

[0009] Preferably, the first pasting station and the second pasting station are located on the outer side surfaces of the cover ring and the metal base.

[0010] Preferably, the first pasting platform and the second pasting platform include grooves formed on the outer side surfaces of the cover ring and the metal base for mounting and positioning the first fixing member and the second fixing member, and the pasting surfaces of the first fixing member and the second fixing member match the groove bottom of the groove. The longitudinal cross-section of the groove bottom can be a flat surface, a curved surface, or a folded surface, and the pasting surfaces of the first fixing member and the second fixing member are corresponding flat surfaces, curved surfaces, or folded surfaces that fit therewith.

[0011] Preferably, the plastic rotating piece is an integral piece, and one or more flexible bendable parts are formed between the first pasting platform and the second pasting platform, and the flexible bendable parts are curved and / or bent. Of course, the plastic rotating piece can also be a component with a pivot axis.

[0012] Preferably, the metal base includes an annular bottom ring and a ring seat integrally formed with or sleeved on the can body, the cover ring can be sleeved on the bottom ring and make the top cover close the opening of the bottom ring, and the second adhesive platform is formed on the outer surface of the ring seat. Of course, different from this, in another scheme, the metal base only includes a ring seat, and the cover ring can be provided with a sealing protrusion that cooperates with the metal base to close the opening of the metal base.

[0013] Preferably, the diameter of the bottom ring is smaller than that of the ring seat, so that a step structure matching with the bottom of the cover ring is formed between the bottom ring and the ring seat.

[0014] Preferably, the lower edge of the cover ring has an inner curling edge, the outer side surface of the metal base is convexly provided with a snap-fitting protrusion that snaps with the inner curling edge, a sealing ring is installed on the inner surface of the edge of the cover top, and the upper edge of the metal base is formed with a curling edge that cooperates and abuts with the sealing ring. When the metal top cover is flipped relative to the metal base to cover the opening of the metal base, the inner curling edge of the lower edge of the cover ring snaps with the snap-fitting protrusion, and the sealing ring is clamped between the top of the top cover and the curling edge of the upper edge of the metal base. The sealing ring is a PE part or other plastic part, and the sealing ring can also be made of other non-metallic elastic materials, such as silicone. The sealing ring can be adhered to the cover top, can also be die-cast on the cover top, or can be directly formed in other ways on the lower surface of the cover top near the outer edge.

[0015] Preferably, the metal top cover is a circular cover, and the metal base is a circular ring structure.

[0016] Preferably, the metal cover and the metal base are respectively an integral part, and the metal cover and the metal base are an integral part formed by stamping a thin metal sheet.

[0017] Preferably, one or more engaging through holes are formed on the first pasting table and the second pasting table, and the first fixing member and the second fixing member are provided with engaging protrusions respectively engaging with the engaging through holes on the first pasting table and the second pasting table, so that the connection stability between the first pasting table, the second pasting table and the plastic rotating sheet is high.

[0018] Preferably, the first fixing member and the second fixing member are respectively fixed to the first pasting platform and the second pasting platform by a water-based modified PU adhesive layer, an AB adhesive layer or a hot melt adhesive layer, etc., which can be pasted to plastic and metal. The AB adhesive layer can be a two-component acrylic structural adhesive, a two-component epoxy structural adhesive, etc.

[0019] The utility model also provides a packaging metal can, comprising a can body, a bottom cover and a metal cover, wherein the metal cover is the packaging can metal cover as described above, the bottom cover is installed or integrally formed at the bottom opening of the can body, and the ring seat of the metal cover is installed or integrally formed at the top opening of the can body.

[0020] Compared with the prior art, the utility model uses two rotating parts of the plastic rotating sheet to respectively adhere to the metal top cover and the metal base in the metal cover of the packaging can, so that the metal top cover and the metal base are rotatably connected together, and the rotational opening and closing between the metal top cover and the metal base are realized. No welding or clamping is required, the structure is simple, easy to manufacture, and the sealing is good. In addition, the plastic rotating sheet is used as the rotating part, which is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the metal cover of the utility model at one angle.

[0022] Figure 2 It is a structural diagram of the metal cover of the utility model from another angle.

[0023] Figure 3 It is an exploded view of the metal cover of the utility model.

[0024] Figure 4a It is a structural diagram of a metal top cover and a metal base in a metal cover of the utility model that are closed together.

[0025] Figure 4b It is a structural diagram of the plastic rotating piece of the utility model.

[0026] Figure 5 It is a cross-sectional view of the metal cover of the utility model.

[0027] Figure 6 yes Figure 5 Enlarged view of part a.

[0028] Figure 7 yes Figure 5 Enlarged view of part b.

[0029] Figure 8 It is a three-dimensional diagram of a metal top cover in a packaging metal can of the utility model being completely opened relative to a metal base.

[0030] Fig. 9 It is a structural diagram of a metal cover in the utility model in which a metal top cover is half-opened relative to a metal base.

[0031] Fig.10 yes Fig. 9 Enlarged view of part c. DETAILED DESCRIPTION

[0032] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0033] refer to Figure 8 The utility model discloses a packaging metal can 1, comprising a can body 2 of thin metal skin, a bottom cover 3 of thin metal skin and a metal cover 100, wherein the bottom cover 3 is installed or integrally formed at the bottom opening of the can body 2, and the metal cover 100 is sealed at the top opening of the can body 2. In this embodiment, the thin metal skin is tinplate, but it can also be other materials, such as aluminum skin, etc.

[0034] refer to Figure 1As shown in FIG4 , the metal cover 100 includes a metal top cover 10 with a thin metal skin, a metal base 20 with a thin metal skin, and a plastic rotating piece 30. The metal top cover 10 includes a cover top 11 and a cover ring 12 surrounding the cover top 11. The metal base 20 includes an annular bottom ring 21 and a ring seat 22 integrally formed with or sleeved on the can body 2. The cover ring 12 can be sleeved on the bottom ring 21. The corresponding positions of the cover ring 12 and the bottom ring 21 are respectively provided with a first pasting platform 201 and a second pasting platform 202. The plastic rotating piece 30 includes a first fixing member 31 and a second fixing member 32. The first fixing member 31 is rotatably connected to the second fixing member 32, and the first fixing member 31 is pasted and fixed on the first pasting platform 201, and the second fixing member 32 is pasted on the second pasting platform 202, so that the metal top cover 10 is rotatably connected to the metal base 20. The metal top cover 10 rotates relative to the metal base 20 to close / open the opening of the metal base 20. Reference Figure 5 and Figure 6 , which is a structural diagram of the metal top cover 10 rotating relative to the metal base 20 and closing the opening of the metal base 20, refer to Fig. 9 and Fig.10 , which is a structural diagram of the metal top cover 10 rotating relative to the metal base 20 and opening the opening of the metal base 20.

[0035] The plastic rotating sheet 30 is an integral piece, and one or more flexible bendable portions 33 are formed between the first pasting platform 201 and the second pasting platform 202. The first pasting platform 201 is located on the outer side of the cover ring 12, and the second pasting platform 202 is located on the outer side of the bottom ring 21. In this embodiment, there are three flexible bendable portions 33 and they are arc-shaped portions, wherein the middle flexible bendable portion 33 is smaller than the flexible bendable portions 33 on both sides. Of course, in contrast to this, at least part of the flexible bendable portions 33 can also be bent.

[0036] Specifically, the first pasting platform 201 is a first groove formed on the outer side of the cover ring 12, and the second pasting platform 202 is a second groove formed on the outer side of the bottom ring 21. The first fixing member 31 and the second fixing member 32 are positioned and installed in the first groove and the second groove respectively, and the pasting surfaces of the first fixing member 31 and the second fixing member 32 match the bottoms of the first groove and the second groove. In this embodiment, the bottom of the groove is a plane or a curved surface. In this embodiment, the first pasting platform 201 and the second pasting platform 202 are half-moon shaped, but of course not limited to this. The first pasting platform 201 and the second pasting platform 202 can be set according to actual needs.

[0037] In order to further increase the adhesion firmness between the first pasting platform 201 and the first fixing member 31, and between the second pasting platform 202 and the second fixing member 32, a concave-convex matching engaging groove and engaging protrusion can be formed between the first pasting platform 201 and the first fixing member 31, and a concave-convex matching engaging groove and engaging protrusion can be formed between the second pasting platform 202 and the second fixing member 32. Specifically, the engaging groove is a through hole formed on the first pasting platform 201 and the second pasting platform 201, and the engaging protrusion is a protrusion structure convexly provided on the first fixing member 31 and the second fixing member.

[0038] The first fixing member 31 and the second fixing member 32 are respectively fixed to the first pasting platform 201 and the second pasting platform 202 by adhesive layers such as water-based modified PU adhesive layer, AB adhesive layer or hot melt adhesive layer.

[0039] The diameter of the bottom ring 21 is smaller than that of the ring seat 22, so that a step structure is formed between the bottom ring 21 and the ring seat 22 to match the bottom of the cover ring 12. The ring seat 22 is provided with a plurality of protrusions 221 protruding inwardly, which are used to engage with the can body 2 when being sleeved on the can body 2. The lower edge of the ring seat 22 also has a curling edge 222.

[0040] refer to Figure 7 The lower edge of the cover ring 12 has an inner curling edge 122, and the outer side surface of the bottom ring 21 is convexly provided with a locking protrusion 212 that is engaged with the inner curling edge.

[0041] refer to Figures 5 to 7 The inner surface of the edge of the cover top 11 is provided with a sealing ring 40, and the upper edge of the bottom ring 21 forms a curling edge 213 that cooperates with the sealing ring 40. The curling edge 213 can be an inner curling edge or an outer curling edge. Preferably, the top of the curling edge 213 is a horizontal straight surface.

[0042] The metal top cover 10 is a circular cover, and the metal base 20 is a circular ring structure, so that the metal cover 100 is a circular metal cover. Of course, the metal cover can also be an oval or square metal cover and the like.

[0043] An opening piece 111 is recessed on the outer surface of the cover ring 11 of the metal top cover 10 at a side opposite to the first pasting platform 201 .

[0044] Compared with the prior art, the utility model uses two rotating parts of the plastic rotating piece 30 to respectively adhere to the metal top cover 10 and the metal base 20 in the metal cover 100, so that the metal top cover 10 and the metal base 20 are rotatably connected together, and the rotational opening and closing between the metal top cover 10 and the metal base 20 is realized. No welding or clamping is required, the structure is simple, and it is easy to manufacture. In addition, the use of the plastic rotating piece 30 as a rotating part has low cost.

[0045] Among them, since the metal top cover 1 and the metal base 20 are thin metal leather parts, the grooves and protrusions thereon will form corresponding protrusions and grooves on the opposite sides.

[0046] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A metal cover for a packaging can, characterized in that: It includes a metal top cover with a thin metal skin, a metal base with a thin metal skin and a plastic rotating sheet, the metal top cover includes a cover top and a cover ring surrounding the cover top, the metal base is ring-shaped, and the lower side of the metal base can be integrally formed or sleeved with the can body, and the upper side can be installed in cooperation with the metal top cover so that the metal top cover covers the upper opening of the metal base, the cover ring and the metal base are respectively provided with a first pasting platform and a second pasting platform at corresponding positions, and the plastic rotating sheet includes a first fixing member and a second fixing member, the first fixing member is rotatably connected to the second fixing member, and the first fixing member is pasted and fixed on the first pasting platform, and the second fixing member is pasted on the second pasting platform, so that the metal top cover is rotatably connected to the metal base and can close and open the opening of the metal base.

2. The metal cover for a packaging can according to claim 1, characterized in that: The first pasting platform and the second pasting platform are located on the outer side surfaces of the cover ring and the metal base.

3. The metal cover for a packaging can according to claim 1, characterized in that: The first pasting platform and the second pasting platform include grooves formed on the outer side surfaces of the cover ring and the metal base and used to install and position the first fixing member and the second fixing member, and the pasting surfaces of the first fixing member and the second fixing member match the bottom of the groove.

4. The metal cover for a packaging can according to claim 1, characterized in that: The plastic rotating sheet is an integral piece, and one or more flexible bendable parts are formed between the first pasting platform and the second pasting platform, and the flexible bendable parts are in a curved and / or bent shape.

5. The metal cover for a packaging can according to claim 1, characterized in that: The metal base includes an annular bottom ring and a ring seat integrally formed with or sleeved on the can body, the cover ring can be sleeved on the bottom ring and enable the top cover to close the opening of the bottom ring, the second pasting platform is formed on the outer surface of the ring seat, the diameter of the bottom ring is smaller than the ring seat, so as to form a step structure between the bottom ring and the ring seat that cooperates with the bottom of the cover ring.

6. The metal cover for a packaging can according to claim 1, characterized in that: The metal top cover and the metal base are respectively an integral part.

7. The metal cover for a packaging can according to claim 1, characterized in that: The lower edge of the cover ring has an inner curling edge, the outer side surface of the metal base is convexly provided with a locking protrusion that engages with the inner curling edge, a sealing ring is installed on the inner surface of the edge of the cover top, and the upper edge of the metal base is formed with a curling edge that cooperates and abuts with the sealing ring. When the metal top cover is flipped relative to the metal base to seal the opening of the metal base, the inner curling edge of the lower edge of the cover ring engages with the locking protrusion, and the sealing ring is clamped between the top of the top cover and the curling edge of the upper edge of the metal base.

8. The metal cover for a packaging can according to claim 1, characterized in that: One or more engaging through holes are formed on the first pasting platform and the second pasting platform, and engaging protrusions are protruded on the first fixing member and the second fixing member to engage with the engaging through holes on the first pasting platform and the second pasting platform respectively.

9. The metal cover for a packaging can according to claim 1, characterized in that: The first fixing member and the second fixing member are fixed to the first pasting platform and the second pasting platform by means of a water-based modified PU adhesive layer, an AB adhesive layer or a hot-melt adhesive layer.

10. A packaging metal can, characterized in that: It comprises a can body, a bottom cover and a metal cover, wherein the metal cover is the metal cover of the packaging can as described in any one of claims 1 to 9, the bottom cover is installed or integrally formed at the bottom opening of the can body, and the ring seat of the metal cover is installed or integrally formed at the top opening of the can body.

Images