Crown-shaped bottle opening and metal aluminum bottle

Abstract

The utility model relates to a crown-shaped bottle opening and a metal aluminum bottle, and belongs to the technical field of aluminum bottle sealing. The crown-shaped bottle opening is formed by outward rolling along the inner wall of the aluminum bottle opening and is formed by transition connection of four arc angles and a closed section; the four arc angles comprise a first transition arc section which is turned outwards along the edge of the bottle opening, a second transition arc section which is turned outwards and downwards along the first transition arc section, a third transition arc section which is continuously in transition connection downwards along the second transition arc section, and a fourth transition arc section which is rolled inwards along the third transition arc section; one end of the closed section starts from the fourth transition arc section, and the other end of the closed section abuts against and is attached to the outer side wall of the bottle opening; the first transition arc section is overturned upwards to form a sealing face, and the sealing face is used for being in face contact with an inner pad of the crown-shaped cover so as to achieve the sealing effect. The crown-shaped bottle opening is good in supporting stability and resistant to pressure and abrasion, abrasion, caused by sharp corners, of the inner pad of the bottle cap is avoided, stress can be effectively dispersed, and the sealing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminium bottle sealing technology field, specifically speaking is a crown bottle mouth and metal aluminium bottle. BACKGROUND

[0002] The crown bottle mouth is a bottle mouth structure with a crown cap to form a sealing structure, and the caliber is relatively small, which is generally applicable to glass packaging bottles of liquor, beer, beverage and liquid condiment. The design of the crown bottle mouth needs to ensure that the size of the transition part of the bottle neck and the bottle mouth meets the specified requirements to ensure the sealing effect and the structural strength of the bottle body.

[0003] The existing aluminum bottle mouth design generally passes through the rolling thread, so that the bottle cap can be tightly screwed on the bottle mouth to ensure the sealing property.

[0004] At present, the crown bottle mouth is mainly applied to glass bottles and has not been applied to aluminum bottles. This is because the hardness of aluminum is generally low, the wear resistance is poor, the toughness is not good, and the deformation is easy. Therefore, the aluminum bottle with the crown bottle mouth design is difficult to pass the sealing property, pressure resistance and torque test of the bottle mouth, and there is certain technical difficulty. SUMMARY

[0005] The utility model aims at solving various problems mentioned above, and further provides a crown bottle mouth and metal aluminum bottle.

[0006] To solve the above problems, the technical scheme adopted by the utility model is:

[0007] A crown bottle mouth is formed at the aluminum bottle mouth, cooperates with the crown cap and the inner pad to realize the sealing of the aluminum bottle mouth, and is characterized in that the crown bottle mouth is formed by rolling outward along the inner wall of the aluminum bottle mouth, and is formed by four circular arc corners and a closed section transition connection, wherein the four circular arc corners include a first transition arc segment with a radius R0.75 that is rolled outward along the edge of the bottle mouth, a second transition arc segment with a radius R2.4 that is rolled downward outward along the first transition arc segment, a third transition arc segment with a radius R4 that is continuously transitionally connected downward along the second transition arc segment, and a fourth transition arc segment with a radius R0.65 that is rolled inward along the third transition arc segment; one end of the closed section starts from the fourth transition arc segment, and the other end is abutted and fitted to the outer wall of the bottle mouth.

[0008] The first transition arc segment is upwardly rolled to form a sealing surface, and the sealing surface is used to form surface contact with the inner pad of the crown cap to realize the sealing effect.

[0009] Further, the closed section is a horizontal straight section, which is closed and abutted to the outer wall of the bottle mouth to enhance the structural stability and pressure resistance of the bottle mouth.

[0010] Further, the bottle mouth is a necked structure, i.e. the inner wall of the bottle mouth is inclined and outwardly expanded, which can improve the stability of the fitting between the bottle cap and the bottle mouth.

[0011] Further, the inner diameter of the bottle mouth is 20.5±0.2mm, and the outer diameter of the bottle mouth is 26.6±0.2mm.

[0012] Further, the horizontal height between the sealing surface and the closing section is the height of the bottle mouth, which is 3.85±0.2mm.

[0013] A metal aluminum bottle comprises a bottle body with a bottle mouth, wherein the bottle mouth is the crown-shaped bottle mouth as described above.

[0014] The crown-shaped bottle mouth and the metal bottle of the utility model, the bottle mouth is composed of four R angles which are turned outward and designed with an angle and connected with each other, and the crown-shaped bottle mouth has good supporting stability, pressure resistance and wear resistance, the R angles with a predetermined angle and the transition connection between them can avoid the wear of the inner pad of the bottle cap caused by sharp corners, the sealing surface formed on the upper end surface can be tightly combined with the inner pad of the bottle cap, so that the gap between them is effectively closed, and on the other hand, the bottle mouth edge formed by the four R angles can effectively disperse stress and avoid stress concentration, which significantly improves the durability and safety of the product. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a crown-shaped bottle mouth structure schematic view of the embodiment. DETAILED DESCRIPTION

[0016] The utility model will be described in detail below with reference to the drawings.

[0017] Embodiment one

[0018] The embodiment relates to a crown-shaped bottle mouth of an aluminum bottle, the crown-shaped bottle mouth is formed on the bottle mouth of the aluminum bottle through bottle mouth edge forming, cooperates with a crown-shaped cap and an inner pad to realize the sealing of the bottle mouth of the aluminum bottle.

[0019] The crown-shaped bottle mouth comprises a first transition arc segment 1, a second transition arc segment 2, a third transition arc segment 3, a fourth transition arc segment 4 and a closing segment 5 which are successively rolled outward and downward along the inner wall of the aluminum bottle mouth, wherein the first transition arc segment 1 is rolled outward along the bottle mouth edge with a radius of R0.75, and the first transition arc segment 1 is upwardly rolled to form a sealing surface 11 which is used to contact the inner pad of the crown-shaped cap to achieve a sealing effect; the second transition arc segment 2 is rolled outward and downward along the first transition arc segment 1 with a radius of R2.4; the third transition arc segment 3 is successively connected downward along the second transition arc segment 2 with a radius of R4; the fourth transition arc segment 4 is rolled inward along the third transition arc segment 3 with a radius of R0.65; the end of the fourth transition arc segment 4 is connected to the closing segment 5 which is a horizontal straight segment with one end starting from the fourth transition arc segment 4 and the other end abutting to the outer side wall 6 of the bottle mouth to enhance the structural stability and pressure resistance of the bottle mouth. The inner diameter of the bottle mouth is 20.5±0.2mm, and the outer diameter of the bottle mouth is 26.6±0.2mm. The horizontal height between the sealing surface 7 and the closing segment 5 is the height of the bottle mouth, and the size is 3.85±0.2mm. The aluminum bottle mouth is a neck-in structure, that is, the bottle mouth edge is inclined and outwardly expanded, and the neck-in structure can improve the stability of the fitting between the bottle cap and the bottle mouth.

[0020] Since the bottle mouth roll edge structure is very crucial for the sealing performance of the package container, and the crown-shaped bottle mouth has strict standards and requirements for the sealing performance test, pressure resistance test and torque test when applied to the aluminum bottle, the crown-shaped bottle mouth with high performance of pressure resistance and sealing is formed by the angle design of the four R angles and the transition connection, and the crown-shaped bottle mouth has the following technical advantages compared with the traditional aluminum bottle mouth roll edge structure:

[0021] The utility model has the following technical effects:

[0022] 1. The crown-shaped bottle mouth forms a sealing surface on the upper end face through the R angle design, and the sealing surface and the inner pad of the bottle cap are tightly combined to effectively close the gap therebetween, prevent liquid, gas and dust from entering, and prevent leakage.

[0023] 2. The crown-shaped bottle mouth can effectively disperse stress and avoid stress concentration on a certain point through the design of the four R angles, and this design is very important for improving the durability and safety of the product.

[0024] 3. The crown-shaped bottle mouth is not only suitable for the crown cap, but also can be matched with the pull ring cap.

[0025] 4. In the mold design and manufacturing process, the existence of the R angle makes the mechanical processing more convenient. It reduces the resistance of the mold in the processing process, reduces the wear resistance of the mold, thereby improving the production efficiency and the service life of the mold.

[0026] 5. From the appearance, the design with R angle is not only more beautiful, visual effect is better, the hand feeling is more comfortable, but also effectively provides the strong support, reduces the wear and tear to the inner pad of the bottle cap, improves the sealing effect, which has certain help for improving the market competitiveness of the product.

[0027] Example two

[0028] The present embodiment relates to a metal aluminum bottle, the aluminum bottle has a bottle body, a bottle shoulder, a bottle neck and a crown-shaped bottle mouth, the inner diameter size of the crown-shaped bottle mouth is 20.5±0.2mm, and the outer diameter size is 26.6±0.2mm.

[0029] The crown-shaped bottle mouth comprises a first transition arc segment 1, a second transition arc segment 2, a third transition arc segment 3, a fourth transition arc segment 4 and a closing segment 5 which are successively rolled outward and downward along the inner wall of the aluminum bottle mouth, wherein the first transition arc segment 1 is rolled outward along the edge of the bottle mouth, the radius thereof is R0.75, and the first transition arc segment 1 is upwardly rolled to form a sealing surface 11, the sealing surface 11 is used to contact the sealing surface of the inner pad of the crown-shaped cap to realize the sealing effect; the second transition arc segment 2 is rolled outward and downward along the first transition arc segment 1, the radius thereof is R2.4; the third transition arc segment 3 is continuously connected and transitioned downward along the second transition arc segment 2, the radius thereof is R4; the fourth transition arc segment 4 is rolled inward along the third transition arc segment 3, the radius thereof is R0.65; the end of the fourth transition arc segment 4 is connected to the closing segment 5, the closing segment 5 is a horizontal straight segment, one end of the closing segment 5 is from the fourth transition arc segment 4, and the other end of the closing segment 5 is abutted and fitted to the outer wall 6 of the bottle mouth to enhance the structural stability and pressure resistance of the bottle mouth. The horizontal height between the sealing surface 7 and the closing segment 5 is the height of the bottle mouth, and the size thereof is 3.85±0.2mm.

[0030] The present application is not limited to the above-mentioned embodiments. The above description of the specific embodiments is intended to describe and explain the technical solutions involved in the present application. Any obvious changes, substitutions or combinations based on the present application should be considered to fall within the protection scope of the present application. The above specific embodiments are used to disclose the best implementation method of the present application, so that those skilled in the art can apply various embodiments and various alternative ways of the present application to achieve the purpose of the present application.

Claims

1. A crown finish formed on the finish of an aluminum bottle for mating with a crown cap and its inner gasket to achieve a seal of the finish of the aluminum bottle, characterized in that, The crown-shaped bottle mouth is rolled outward along the inner wall of the aluminum bottle mouth, and is connected by four circular arc corners and a closed section, wherein the four circular arc corners include a first transition arc section with a radius R0.75 rolled outward along the edge of the bottle mouth, a second transition arc section with a radius R2.4 rolled outward and downward along the first transition arc section, a third transition arc section with a radius R4 continuously connected downward along the second transition arc section, and a fourth transition arc section with a radius R0.65 rolled inward along the third transition arc section; one end of the closed section starts from the fourth transition arc section, and the other end is abutted and fitted to the outer wall of the bottle mouth; The first transition arc section is upwardly rolled to form a sealing surface, which is used to contact the inner pad of the crown-shaped cover to achieve a sealing effect; The closed section is a horizontal straight section, which is closed and abutted to the outer wall of the bottle mouth to obtain the pressure resistance of the bottle mouth; The aluminum bottle mouth is a neck-in structure, that is, the inner wall of the bottle mouth is inclined and outwardly expanded downward; The inner diameter of the bottle mouth is 20.5±0.2mm, and the outer diameter of the bottle mouth is 26.6±0.2mm; The horizontal height between the sealing surface and the closed section is the height of the bottle mouth, which is 3.85±0.2mm.

2. A metal aluminum bottle comprising a body with a mouth, characterized in that, The bottle mouth adopts the crown-shaped bottle mouth of claim 1.

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