CN103786943A - A kind of aluminum packaging bottle and its manufacturing method - Google Patents

Abstract

The invention discloses an aluminum packaging bottle which sequentially comprises a bottle bottom (1), a bottle cylinder body (2), a bottle shoulder (3), a bottle neck (4) and a bottle opening (5), wherein the bottle bottom (1), the bottle cylinder body (2), the bottle shoulder (3), the bottle neck (4) and the bottle opening (5) are integrally formed to form the complete packaging bottle, the wall thickness of the bottle bottom (1) is larger than the wall thickness of the rest part of the packaging bottle, the bottle cylinder body (2) is divided into a lower section (2-1) and an upper section (2-2), the lower section (2-1) is connected with the bottle bottom (1), the upper section (2-2) is connected with the bottle shoulder (3), the wall thickness of the bottle cylinder body (2) is gradually increased from the lower section (2-1) to the upper section (2-2), the wall thickness of the bottle neck (4), the bottle shoulder (3) and the wall thickness of the joint of the upper section (2-2) and the bottle opening (3) are equal, and an outward turned edge (6) is arranged on the bottle opening (, the radius (C) of the curled edge (6) close to the bottle mouth (5) is smaller than the radius (B) of the curled edge far away from the bottle mouth (5).

Description

A kind of aluminum packaging bottle and its manufacturing method

【Technical field】

The invention relates to an aluminum packaging bottle and a production method thereof.

【Background technique】

Aluminum packaging bottle is a brand-new packaging container that has emerged in recent years and can be used to hold beverages, wine, etc. Aluminum packaging bottles are non-explosive bottles, light in weight, saving in freight, disposable bottles, water saving, resealable, recyclable, durable, environmentally friendly, anti-counterfeiting, easy to keep cold, good beer taste, unique bottle shape, exquisite printing, convenient Portable, easy to operate, safe and reliable, loved by users.

At present, the packaging bottles used in the market are generally made of glass, and glass packaging bottles have the following disadvantages: poor light-shielding performance, unable to adapt to the preservation of the filling inside; and glass packaging bottles are bulky, low-grade products, low added value, bottle Personal injury incidents caused by beer explosions are also common; glass bottles are not easy to print and are usually marked with labels, which are poor in moisture-proof, waterproof and anti-counterfeiting. Packaging (commonly known as "two-piece cans", "pop cans") has a single shape due to the craftsmanship and content, and there are also deficiencies in plasticity and color control. For this reason, people are more willing to use a piece of aluminum packaging bottle. The wall thickness of the existing aluminum packaging bottles is generally greater than 0.3mm, so that the product uses more materials and the manufacturing cost is high. For this reason, it is necessary to improve the prior art.

【Content of invention】

In order to solve the deficiencies in the prior art, provide a kind of one-piece molding with less material, strong and durable, cost-saving, corrosion-resistant aluminum packaging bottle, the technical solution adopted in the present invention is:

The aluminum packaging bottle includes a bottle bottom, a bottle body, a bottle shoulder, a bottleneck and a bottle mouth in turn, and the bottle bottom, bottle body, bottle shoulder, bottleneck and bottle mouth are integrally formed to form a complete packaging bottle. The wall thickness of the bottom of the bottle is greater than that of the rest of the packaging bottle. The bottle cylinder is divided into a lower section and an upper section. The lower section is connected to the bottom of the bottle, and the upper section is connected to the shoulder of the bottle. The wall thickness of the upper section gradually becomes thicker, and the wall thicknesses of the neck, the shoulder, and the junction of the upper section and the shoulder are equal, and an outward curling is provided at the mouth of the bottle, and the curling edge is close to the mouth of the bottle. The radius is smaller than the radius away from the mouth of the bottle.

The bottleneck is divided into two sections, including a cylindrical section connected to the bottle shoulder and a conical section connected to the cylindrical section with a large bottom radius and a small upper radius.

The wall thickness of the bottom of the bottle is 0.9 mm to 1.5 mm, the wall thickness of the connection between the lower section of the bottle cylinder and the bottom of the bottle is 0.02 mm to 0.08 mm, and the shoulder, neck, and upper section of the bottle cylinder and the shoulder are The wall thickness of the connection is 0.30mm-0.38mm.

The inner wall of the packaging bottle is coated with a water-soluble non-toxic anti-corrosion coating.

The manufacturing method of aluminum packaging bottle comprises the following steps:

A. Lubrication of aluminum flakes: Put the round aluminum flakes into the frying machine with lubricant, and stir evenly to form aluminum flakes with lubrication and no batch front;

B. Making rough cans: the round aluminum sheet is extruded into a rough can by a punching machine. The rough can includes the bottle bottom and the bottle cylinder, and the edge of the bottle bottom extends upwards to form the bottle cylinder;

C. Rough can billet stretching: the bottle body is gradually squeezed and stretched upwards to a standard length. This step is formed by one-time punching with the variable wall dies that cooperate with each other, so that the wall thickness of the lower section of the bottle body is thinned, and then extended upwards The wall thickness gradually becomes thicker to the upper section of the cylinder, and the wall thickness from the upper section of the cylinder to the opening of the cylinder is a bottle cylinder with equal wall thickness;

D. Trimming and polishing: cut the open end of the rough can blank cylinder to the required length, and polish the rough can blank;

E. Cleaning: Clean up the internal and external dirt of the rough can blank and dry it;

F. Spraying: Spray a water-soluble non-toxic anti-corrosion coating on the inner wall of the rough can blank. ;

G. Printing: Spray the base color, printing and glazing on the outer surface of the rough can blank;

H. Neck Neck Molding: Shrink the opening of the rough can blank to form a shoulder and neck;

I. Flanging of the bottle mouth: the opening of the bottle neck is turned outward to form a curl;

J. Re-cleaning and testing: Clean the finished product, check the tightness of the finished product, and check whether there is water leakage.

The wall thickness of the bottom of the bottle is 0.9 mm to 1.5 mm, the wall thickness of the lower section of the bottle cylinder is 0.08 mm to 0.02 mm, and the wall thickness of the upper section of the bottle cylinder, bottle shoulder and bottleneck is the same, all of which are 0.30 mm to 0.38 mm.

The neck of the bottle shrinks in turn into a cylindrical cylindrical section and a conical section with a large bottom radius and a small upper radius, and the cylindrical section is connected to the shoulder of the bottle;

The radius of the crimp near the mouth of the bottle is smaller than the radius away from the mouth of the bottle.

The water-soluble non-toxic anti-corrosion coating is a water-soluble coating made of acrylic modified epoxy resin as the main film-forming substance, supplemented with co-solvents, additives, etc. dispersed in deionized water;

Adopt above-mentioned technical scheme, since the bottom of the bottle is the place where the whole bottle is subjected to the greatest force, the wall thickness of the bottom of the bottle is set to the thickest in order to prevent deformation and damage, so that the bottom of the bottle can be protected more when being subjected to the gravity of the bottle itself and the solution in the bottle. Good protection of the bottom of the bottle; under the premise of meeting the deformation pressure and burst pressure in the national standard GB/T25164‐2010, as well as the coating quality requirements, it is stamped at one time with the mutually matched variable wall tooling, so that the lower section of the cylinder body reaches the upper section Gradually thicken until the shoulder of the bottle extends upwards to equal wall thickness, which saves materials and costs; the inner wall of the bottle is coated with a water-soluble non-toxic anti-corrosion coating, and the anti-corrosion coating is acrylic modified epoxy resin as the main film-forming substance , supplemented by co-solvents, additives, etc. dispersed in deionized water, and has the characteristics of non-toxic, odorless, tasteless, fast drying, good sealing, anti-corrosion, etc., changing the original saturated poly Ester resin has the disadvantage of more residues. At the same time, it overcomes the deficiencies of the prior art and provides an overall beautiful appearance, good visual effect, variable wall, low manufacturing cost, non-explosive bottle, light weight, low freight, and can be sealed. Open, recyclable, durable, environmentally friendly, hygienic, anti-counterfeiting, unique bottle shape and exquisite printing, it has become a high-end aluminum wall-changing beer packaging bottle; curling is set on the bottle mouth, the upper radius C is small, and the lower radius B is large , its function not only makes the capping and uncapping process more smooth, but also avoids easy damage to the bottle mouth when sealing the bottle cap, and prevents the burr from the bottle mouth from cutting the user. Using the above-mentioned process to produce aluminum packaging bottles has simple processing methods, high automation, and high production efficiency. Changing the wall thickness of the bottle body reduces production costs, and printing before the bottle body is formed makes the printing easier. The printing effect is better.

【Description of drawings】

Fig. 1 is a perspective view of an aluminum packaging bottle of the present invention;

Fig. 2 is a sectional view of the aluminum packaging bottle of the present invention;

Fig. 3 is a partial enlarged view of A in Fig. 2 .

【Detailed ways】

The packaging bottle shown in Figure 1 includes a bottle bottom 1, a bottle body 2, a bottle shoulder 3 and a bottleneck 4. The bottle bottom 1, the bottle body 2, the bottle shoulder 3 and the bottleneck 4 are integrally formed of aluminum materials. A bottle mouth 5 is provided at the top, and a crimp 6 turned outward toward the bottle mouth 5 is provided at the bottle mouth 5 .

As shown in Figure 2, the wall thickness of the bottom 1 of the bottle is 0.9mm~1.5mm. Since the bottom 1 is under the greatest force, the wall thickness of the bottom 1 of the bottle should be larger than that of the rest of the packaging bottle, so as to ensure that the bottom of the bottle is not easily deformed. damage. The bottle cylinder 2 is divided into an upper section 2-2 and a lower section 2-1, the lower section 2-1 is connected with the bottle bottom 1, the upper section 2-2 is connected with the bottle shoulder 3, and the wall thickness gradually increases from the lower section 2-1 to the upper section 2-2 , under the premise of meeting the deformation pressure and burst pressure in the national standard GB/T25164-2010, the wall thickness of the connection between the lower section 2-1 and the bottle bottom 1 (the thinnest part of the bottle cylinder 2) is 0.02mm-0.08mm , the wall thickness of the connection between the upper section 2‐2 and the bottle shoulder 3 (the thickest part of the bottle cylinder 2) is 0.30 mm to 0.38 mm, and the wall thickness of the bottle shoulder 3 and the bottle neck 4 are equal. The bottleneck 4 is divided into a cylindrical section 4-1 and a conical section 4-2, the cylindrical section 4-1 is connected with the bottle shoulder 3, the cylindrical section 4-1 is cylindrical, the conical section 4-2 is conical, and the bottle shoulder 3 is an inner The concave and convex arc shape, the bottleneck 4 transitions from the cylindrical section 4-1 to the conical section 4-2 to make the processing more convenient.

As shown in Figure 3, a curling 6 is provided at the bottleneck 5, and the curling 6 is located on the outer wall of the bottleneck 5, and the radius C of the curling 6 close to the bottleneck 5 is smaller than the radius B away from the bottleneck, so that the capping and peeling The capping process is smoother, and it can also avoid easy damage to the bottle mouth when sealing the bottle cap.

The inner wall of the aluminum packaging bottle is sprayed with a water-soluble non-toxic anti-corrosion coating. The anti-corrosion coating is made of acrylic modified epoxy resin as the main film-forming substance, supplemented by co-solvents, additives, etc. dispersed in deionized water. Water-soluble paint, and has the characteristics of non-toxic, odorless, tasteless, fast drying, good sealing, anti-corrosion, etc., changing the shortcomings of the original saturated polyester resin that has a large amount of residue.

The processing steps of this aluminum packaging bottle are as follows:

A. Lubrication of aluminum flakes: Put the round aluminum flakes into the frying machine with lubricant, and stir evenly to form aluminum flakes with lubrication and no batch front;

B. Making rough cans: the round aluminum sheet is extruded into a rough can by a punching machine. The rough can includes the bottle bottom 1 and the bottle cylinder 2, and the edge of the bottle bottom 1 extends upward to form the bottle cylinder 2;

C. Rough can billet stretching: the bottle cylinder 2 is gradually squeezed upwards and stretched to a standard length. This step is formed by one-shot punching with the mutually coordinated variable-wall dies, so that the wall thickness of the lower section 2-1 of the bottle cylinder 2 becomes variable. Thin, then extending upwards to the upper section 2-2 of the cylinder, the wall thickness gradually becomes thicker, and the wall thickness from the upper section 2-2 of the cylinder to the opening of the cylinder is the bottle cylinder 2 of the equal-wall thickness section;

D. Trimming and polishing: cut the open end of the rough can blank cylinder body 2 to the required length, and polish the rough can blank;

E. Cleaning: Clean up the internal and external dirt of the rough can blank and dry it;

F. Spraying: Spray a water-soluble non-toxic anti-corrosion coating on the inner wall of the rough can blank. ;

G. Printing: Spray the base color, printing and glazing on the outer surface of the rough can blank;

H. Neck Neck Molding: Shrink the opening of the rough can blank to form a shoulder 3 and a neck 4;

I. Flange of the bottle mouth: the opening of the bottleneck 4 is flanged outwards to form a curl 6;

J. Re-cleaning and testing: Clean the finished product, check the tightness of the finished product, and check whether there is water leakage.

Using the above steps, the processing is convenient. Under the premise of meeting the deformation pressure and burst pressure in the national standard GB/T25164-2010, the wall thickness of the upper and lower sections of the bottle cylinder can be gradually changed, thereby reducing the cost.

Claims (9)

1. Aluminum packaging bottle, including the bottle bottom (1), bottle barrel (2), bottle shoulder (3), bottleneck (4) and bottle mouth (5), the bottle bottom (1), bottle barrel Body (2), shoulder (3), neck (4) and mouth (5) are integrally formed to form a complete packaging bottle, which is characterized in that the wall thickness of the bottom (1) is greater than that of the rest of the packaging bottle thick, the bottle cylinder (2) is divided into a lower section (2-1) and an upper section (2-2), the lower section (2-1) is connected to the bottom of the bottle (1), and the upper section (2-1) 2) Connected with the bottle shoulder (3), the wall thickness of the bottle cylinder (2) gradually becomes thicker from the lower section (2-1) to the upper section (2-2), and the bottle neck (4), bottle shoulder (3) ) and the wall thickness at the junction of the upper segment (2‐2) and the bottle shoulder (3) are equal, and an outward curling edge (6) is provided on the bottle mouth (5), and the curling edge (6) is close to The radius (C) at the bottle mouth (5) is smaller than the radius (B) at the place far from the bottle mouth (5). the 2. The aluminum packaging bottle according to claim 1, characterized in that: the bottleneck (4) is divided into two sections including a cylindrical section (4-1) connected to the bottle shoulder (3) and a The cylindrical segment (4‐1) is connected to a conical segment (4‐2) with a large bottom radius (D) and a small upper radius (E). the 3. The aluminum packaging bottle according to claim 1 or 2, characterized in that: the wall thickness of the bottom of the bottle (1) is 0.9 mm to 1.5 mm, and the lower section (2- 1) The wall thickness of the joint with the bottom of the bottle (1) is 0.02mm to 0.08mm. The shoulder (3), neck (4) and the upper section (2-2) of the bottle body (2) and the shoulder ( 3) The wall thickness of the connection is 0.30mm ~ 0.38mm. the 4. The aluminum packaging bottle according to claim 1 or 2, characterized in that: the inner wall of the packaging bottle is coated with a water-soluble non-toxic anti-corrosion coating. the 5. A method for manufacturing an aluminum packaging bottle according to claim 1, characterized in that it comprises the following steps: A. Lubrication of aluminum flakes: Put the round aluminum flakes into the frying machine with lubricant, and stir evenly to form aluminum flakes with lubrication and no batch front; B. Making rough cans: the round aluminum sheet is extruded into a rough can by a punching machine. The rough can includes the bottle bottom (1) and the bottle cylinder (2), and the edge of the bottle bottom (1) extends upwards to form the bottle cylinder ( 2); C. Rough can billet stretching: the bottle cylinder (2) is gradually squeezed and stretched upwards to a standard length. ‐1) The wall thickness becomes thinner, and then extends upwards to the upper section of the cylinder (2‐2), the wall thickness gradually becomes thicker, and the wall thickness from the upper section of the cylinder (2‐2) to the opening of the cylinder is equal to the bottle cylinder body(2); D. Trimming and polishing: cut the open end of the rough can blank cylinder (2) to the required length, and polish the rough can blank; E. Cleaning: Clean up the internal and external dirt of the rough can blank and dry it; F. Spraying: Spray a water-soluble non-toxic anti-corrosion coating on the inner wall of the rough can blank. ; G. Printing: Spray the base color, printing and glazing on the outer surface of the rough can blank; H. Neck Neck Molding: Shrink the opening of the rough can blank to form the shoulder (3) and neck (4); I. Flanging of the bottle mouth: the opening of the bottleneck (4) is flanging outwards to form a curling (6); J. Re-cleaning and testing: Clean the finished product, check the tightness of the finished product, and check whether there is water leakage. the 6. The manufacturing method of an aluminum packaging bottle according to claim 5, characterized in that: the wall thickness of the bottom (1) of the bottle is 0.9 mm to 1.5 mm, and the wall thickness of the lower section (2-1) of the bottle cylinder is 0.08 mm ~0.02mm, the wall thickness of the upper section of the bottle body (2-2), the shoulder (3), and the neck (4) are the same, all of which are 0.30mm-0.38mm. the 7. The manufacturing method of aluminum packaging bottles according to claim 5, characterized in that: the bottleneck (4) is sequentially shrunk into a cylindrical section (4-1) with a large bottom radius (D) and a large upper radius (E ) small conical section (4‐2), cylindrical section (4‐1) is connected with bottle shoulder (3). the 8. The manufacturing method of an aluminum packaging bottle according to claim 5, characterized in that: the radius (C) of the crimp (6) near the bottle mouth (5) is smaller than the radius away from the bottle mouth (5) (B). the 9. The manufacturing method of aluminum packaging bottles according to claim 5, characterized in that: the water-soluble non-toxic anti-corrosion coating adopts acrylic modified epoxy resin as the main film-forming substance, supplemented by cosolvents, auxiliary agents, etc. Water-soluble paint dispersed in deionized water. the

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