CN108115058A - Bottle ＆ Can and its manufacturing method - Google Patents
Bottle ＆ Can and its manufacturing method Download PDFInfo
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- CN108115058A CN108115058A CN201710153185.3A CN201710153185A CN108115058A CN 108115058 A CN108115058 A CN 108115058A CN 201710153185 A CN201710153185 A CN 201710153185A CN 108115058 A CN108115058 A CN 108115058A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape
- B65D7/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape of curved cross-section, e.g. cans of circular or elliptical cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/206—Deep-drawing articles from a strip in several steps, the articles being coherent with the strip during the operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/12—Cans, casks, barrels, or drums
- B65D1/14—Cans, casks, barrels, or drums characterised by shape
- B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
- B65D1/165—Cylindrical cans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/42—Details of metal walls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
The present invention provides a kind of Bottle ＆ Can and its manufacturing method.The present invention Bottle ＆ Can with the integrally formed peripheral part in the bottom of can body, upper end opening portion from above-mentioned bottom towards above-mentioned can body is sequentially formed with the cylindric bottle portion centered on tank axis, with the shoulder towards upper end side and undergauge, the neck extended from the shoulder further towards upper end side, and lid mounting portion, the diameter (φ 1) of the outer circumferential surface in above-mentioned bottle portion is below 58mm, the diameter (φ 1) of the outer circumferential surface in the bottle portion is less than 0.35 with the lower end from bottom of above-mentioned can body to the ratio between the height (h) of above-mentioned tank direction of principal axis of above-mentioned upper end opening portion (φ 1/h), the Wall-Thickness Difference of the most thick part of the wall thickness of above-mentioned can body in the above-mentioned bottle portion part most thin with wall thickness is below 0.05mm.
Description
Technical field
The present invention relates to Bottle ＆ Can and its manufacturing methods.
The application is claimed priority based on patent application 2016-231588 of on the November 29th, 2016 in Japanese publication,
And here cite its content.
Background technology
As this Bottle ＆ Can, such as following Bottle ＆ Can is recorded in patent document 1：It possesses：The bottle portion of major diameter；Shoulder
Portion, is continuously disposed in the tank direction of principal axis upper end in the bottle portion, and with towards gradual undergauge above tank direction of principal axis；Mouthful
Portion is continuously disposed in the tank direction of principal axis upper end of the shoulder, and is extended to tank direction of principal axis top, on the tank direction of principal axis in bottle portion
The wall thickness on the tank direction of principal axis top in the bottle portion outside the wall ratio of the end upper end is thicker.
In addition, in the patent document 1, as the manufacturing method of this Bottle ＆ Can, following manufacturing method is recorded：To gold
The bottomed tube body for belonging to system implements that repeatedly processing is thinned and forms DI tanks, which possesses opening portion and opened by this is continuously disposed in
The tank direction of principal axis lower end of oral area and the bottle portion extended to tank direction of principal axis lower section, and the tank direction of principal axis top ratio in the bottle portion is opened
Oral area is thin, is implementing last thinned processing to above-mentioned bottomed tube body come when forming DI tanks, by advance in multiple thinned moulds
The tank axis in the formation reservations in the outer surface of the punch of above-mentioned thinned processing and the bottle portion of bottomed tube body is carried out between tool
Direction upper end forms recess portion on corresponding position, to manufacture the tank axis in the formation reservations in the bottle portion in bottomed tube body
The direction upper end DI tank thicker than the thickness on the tank direction of principal axis top in the formation reservations in the bottle portion outside the upper end,
And above-mentioned Bottle ＆ Can is manufactured based on the above-mentioned shoulder of DI jug formings and oral area.
Also, it is also described in the patent document 1 in the case where forming Bottle ＆ Can based on this DI tanks, usually having must
The wall thickness of the most thick part of wall thickness in the opening portion of DI tanks is set to the wall thickness of the part most thin with the wall thickness in bottle portion
More than thick 80 μm (0.08mm).
Patent document 1：Japanese Patent Publication 2009-082989 publications
But as this Bottle ＆ Can, generally circulate it is more be its bottle portion outer diameter (outer circumferential surface in bottle portion it is straight
Footpath) be about 66mm Bottle ＆ Can.On the other hand, this Bottle ＆ Can has following problem：Especially for the small women of children or hand, hold
The weak old man of power is relatively thick for waiting and is difficult to hold, such as is possible to cause bottle due to hand skids or does not look in open-close lid
Tank drops.Therefore, in recent years, the demand of the thin Bottle ＆ Can of the outer diameter in bottle portion improves.
However, for the Bottle ＆ Can of this thin footpath, as described in Patent Document 1, if passing through the appearance in punch
Form recess portion on the position corresponding with tank direction of principal axis upper end in face, so as in DI tanks by portion that the wall thickness in opening portion is most thick
The wall thickness divided is set to big 80 μm of wall thickness of the part most thinner than the wall thickness in bottle portion or more, the then part for causing the wall thickness most thick
The difference of height size generated with wall thickness between most thin part large percentage shared in the internal diameter of bottomed tube body.Therefore,
When extracting punch, it is possible to which it is bad easily to generate the extraction of punch due to recess portion is stuck in bottomed tube body, so as to significantly drop
The manufacture efficiency or yield rate of low Bottle ＆ Can.
The content of the invention
The present invention proposes in this background, even if its purpose is to provide a kind of thin bottles of outer diameter for bottle portion
Tank, is also difficult to generate in manufacturing process the undesirable Bottle ＆ Can of extraction of punch, and provides a kind of energy and inhibit because of this punch
Extract it is bad caused by manufacture efficiency or yield rate reduction Bottle ＆ Can manufacturing method.
To solve the above-mentioned problems and realize this purpose, Bottle ＆ Can of the invention is integrally formed with the bottom of can body
Peripheral part, the upper end opening portion from above-mentioned bottom towards above-mentioned can body are sequentially formed with the cylindric bottle centered on tank axis
Body portion, with towards upper end side and undergauge shoulder, the neck and lid that extend from the shoulder further towards upper end side install
Portion, above-mentioned Bottle ＆ Can be characterized in that, the diameter phi 1 of the outer circumferential surface in above-mentioned bottle portion is below 58mm, the outer circumferential surface in the bottle portion
Diameter phi 1 and above-mentioned can body the lower end from bottom the ratio between to the height h of above-mentioned tank direction of principal axis of above-mentioned upper end opening portion
φ 1/h are less than 0.35, the wall of the most thick part of the wall thickness of the above-mentioned can body in the above-mentioned bottle portion part most thin with wall thickness
Thick difference is below 0.05mm.
In addition, the manufacturing method of the Bottle ＆ Can of the present invention is the manufacturing method of this Bottle ＆ Can, which is characterized in that is possessed：DI is rushed
Process is pressed, to metallic plate, through drawing process, molding cup-shaped blank implements re-drawing and processing and bottom processing and forming is thinned,
What shaping was formed with above-mentioned bottom and the outer diameter cylindrical portion identical with above-mentioned bottle portion has round-ended cylinder body；Shoulder neck molding procedure,
By the way that this is made to have the upper end side part undergauge of the above-mentioned cylindrical portion of round-ended cylinder body, above-mentioned shoulder is molded and with from the shoulder direction
The above-mentioned neck of upper end side and further undergauge；With lid mounting portion molding procedure, above-mentioned lid is molded in the upper end of above-mentioned neck
Mounting portion is shaped in above-mentioned DI stamping procedures, the most thick part of the wall thickness in the above-mentioned above-mentioned cylindrical portion for having a round-ended cylinder body
The Wall-Thickness Difference of most thin part is below 0.05mm with wall thickness.
Since the diameter phi 1 of the outer circumferential surface in the outer diameter, that is, bottle portion in the bottle portion of the Bottle ＆ Can of said structure is below 58mm,
Therefore children or the small women of hand, old man are also easily held, and the opening and closing covered is easy, and do not look and by Bottle ＆ Can drop can
Energy property is also small.It further, since can be supreme from the lower end of bottom with above-mentioned can body by the diameter phi 1 of the outer circumferential surface in the bottle portion
It states the ratio between the height h of above-mentioned tank direction of principal axis of upper end opening portion φ 1/h and is set to less than 0.35, and the height of can body is set to
More than the outer diameter in thin bottle portion, therefore it can substantially ensure the inner capacities of Bottle ＆ Can.
Also, in the Bottle ＆ Can of said structure and its manufacturing method, the above-mentioned wall for having the above-mentioned cylindrical portion in round-ended cylinder body
The Wall-Thickness Difference of the thick most thick part part most thin with wall thickness is below 0.05mm, i.e. the most thick part of the wall thickness with wall thickness most
Ratio of the thickness difference shared by the internal diameter for having round-ended cylinder body between thin part is minimum.Therefore, implement to cup-shaped blank
Re-drawing and processing and bottom processing and forming is thinned and forms in the DI stamping procedures of round-ended cylinder body, from there is the extraction of round-ended cylinder body
Extraction during punch is excellent, occurs that punch is stuck on the inner peripheral surface of round-ended cylinder body and to extract undesirable situation less, can
Carry out stable shaping.Therefore, though for thin footpath as described above Bottle ＆ Can, in its manufacturing process also can inhibit manufacture effect
Rate or decrease in yield.
But in order to ensure the intensity of can body, in this Bottle ＆ Can, the central shape usually in the bottom of above-mentioned can body
Concave circular top part on the inside of into oriented tank direction of principal axis, and the bottom for the above-mentioned can body being connected in the outer peripheral edge portion with the circular top part
The periphery in portion, protruding end portion is formed in the section along above-mentioned tank axis on the circumferencial direction around above-mentioned tank axis in evagination wire and
The annular convex prominent to the outside of above-mentioned tank direction of principal axis, when bottom is made downward to erect can body in the horizontal plane, the ring
The protruding end of shape protrusion becomes around the circle that above-mentioned tank axis forms and justifies with the ground connection of horizontal plane ground connection.
But in the Bottle ＆ Can of thin footpath described above, the ground connection diameter of a circle is also small, so as to cause erectting in the horizontal plane
Can body easily fall down.It is therefore preferable that the diameter of a circle that the protruding end of the ground connection diameter of a circle, i.e. annular convex is formed around tank axis
φ 2 is more than 0.85 with the ratio between the diameter phi 1 of outer circumferential surface in above-mentioned bottle portion 2/ φ 1 of φ, and is formed as making ground connection circle in tank master
It is located on the outer side as far as possible in the bottom of body.
On the other hand, to the Bottle ＆ Can manufactured by manufacturing method described above, it is formed with by above-mentioned DI processes to be molded
After the bottom and the cylindrical portion that possess circular top part and annular convex, there is the inner surface of round-ended cylinder body to this by using injection nozzle
It sprays out and coating and is dried and forms film, thus corrosion resistance is provided.However, for the Bottle ＆ Can of thin footpath, particularly
When being formed as above to make ground connection circle positioned at the peripheral side as far as possible of the bottom of can body, due to the painting carried out by injection nozzle
The spread of spray of material is blocked by the cylindrical portion for having round-ended cylinder body, and it is therefore possible to can not fully spread all over coating to have round-ended cylinder body
Inner surface in annular convex protruding end near.
Therefore, concave circular top part on the inside of oriented tank direction of principal axis is formed in the center of the bottom of can body as above-mentioned, and
In the bottom periphery for the can body that the outer peripheral edge portion with the circular top part is connected, it is formed on the circumferencial direction around tank axis along tank
In the case that protruding end portion is in evagination wire and the annular convex prominent to the outside of tank direction of principal axis in the section of axis, in order to make coating
Fully spread all near the protruding end of the annular convex in the above-mentioned inner surface for having a round-ended cylinder body, it preferably will be along above-mentioned tank axis
In section the annular convex formed by the protruding end portion of above-mentioned annular convex on the center of convex curve inner peripheral surface phase
More than 2.5mm is set to for the radial width W of above-mentioned tank axis, expanding the annular convex is having the opening in round-ended cylinder body on surface
Width, so that the protruding end that the coating being ejected on the inner surface of round-ended cylinder body rebounds and easily flows into annular convex is attached
Closely.
As explained above, according to the present invention, even if to be easy to the Bottle ＆ Can of the thin footpath held, inner capacities is also ensured that
Meanwhile can prevent that the extraction that punch is generated in its manufacturing process is bad and can steadily be molded, so as to inhibit manufacture efficiency
Or the decline of yield rate.
Description of the drawings
Fig. 1 is the side elevation in partial section for the embodiment for representing the Bottle ＆ Can of the present invention.
Fig. 2 is the enlarged cross-sectional view in the A portions in Fig. 1.
Fig. 3 is the flow chart of an embodiment of the manufacturing method for representing the Bottle ＆ Can of the present invention.
Specific embodiment
Fig. 1 and Fig. 2 is the figure for the embodiment for representing the Bottle ＆ Can of the present invention, and Fig. 3 is the system for representing the Bottle ＆ Can of the present invention
Make the figure of an embodiment of method.As shown in Figure 1, the can body 1 of the Bottle ＆ Can of present embodiment possess bottom 2 and with the bottom
2 peripheral parts 3 for being integrally formed and extending from the outer peripheral edge of bottom 2 to upper end side (being in Fig. 1 upside), the bottle of present embodiment
Tank is in the bottomed cylindrical towards the upper end side undergauge and the substantially multistage centered on tank axis C.
Inside (upper end side of the can body 1) recess in oriented tank axis C directions is formed in the center of bottom 2 and along tank axis C's
Section is the circular top part 2a of substantially arc-shaped, and on the outer peripheral edge portion edge of circular top part 2a around the circumferentially continuous of tank axis C
It is formed with the annular convex 2b that section is in evagination wire and the outside (lower end side of can body 1) towards tank axis C directions protrudes.Separately
Outside, in peripheral part 3, it is sequentially formed with from bottom 2 towards the opening portion 4 of the upper end side of can body 1：Cylindric bottle portion 5,
Centered on tank axis C；The shoulder 6 of circular cone mesa shaped, with towards upper end side and with the constant gradual undergauge of gradient；Tubular
Neck 7, from the shoulder 6 further towards upper end side extend；It is still tubular and in the present embodiment with lid mounting portion 8
Screw chasing processing is implemented to the lid mounting portion 8.
In the embodiment of manufacturing method for manufacturing the Bottle ＆ Can of the present invention of this Bottle ＆ Can, such as the flow chart institute of Fig. 3
Show, first, by the deep-draw stamping procedure carried out by deep-draw press machine by the metallic plates such as aluminium alloy punching for it is disk-shaped simultaneously
Implement drawing process, so as to manufacture the cup-shaped blank of depth as shallow.Then, by DI, (Drawing and Ironing, drawing subtract
It is thin) re-drawing is implemented to the cup-shaped blank using punch and multiple cupping tools in the DI stamping procedures that carry out of press machine and is thinned
Process and it made to extend to tank axis C directions, and by implementing bottom processing and forming, so as to be molded over bottom 2 be formed with it is above-mentioned
Circular top part 2a's and annular convex 2b has round-ended cylinder body (DI tanks).
Here, in the present embodiment, the metallic plate for being formed as cup-shaped blank by deep-draw stamping procedure is JIS H
A3004 or A3104 aluminium alloys in 4000, using 0.2% yield point after the baking through 205 DEG C × 20 minutes in 235N/
mm2~265N/mm2In the range of aluminium alloy.In addition, it is formed with by the molding peripheral part for having round-ended cylinder body of the cup-shaped blank
Cylindrical portion centered on above-mentioned tank axis C, the outer diameter of the cylindrical portion is the outer diameter (aftermentioned φ 1) with the bottle portion 5 of can body 1
Roughly equal constant outer diameter.That is, the outer diameter for having the cylindrical portion of round-ended cylinder body is below 58mm.In addition, it is molded in above-mentioned bottom
In processing, preferably with the protruding end of aftermentioned annular convex 2b around the diameter of a circle φ 2 that tank axis C is formed and the outer circumferential surface in bottle portion 5
The ratio between diameter phi 1 (outer diameter for having the cylindrical portion of round-ended cylinder body) 2/ φ 1 of φ be more than 0.85 mode, shaping annular convex 2b.
In addition, in above-mentioned bottom processing and forming, preferably using the radial width W of the inner peripheral surface of aftermentioned annular convex 2b as 2.5mm with
On mode be molded annular convex 2b.
Cleaned in the first cleaning process and it is dry it is so molding have round-ended cylinder body, then to inside and outside in coating process
Implement that sintering is dried after application in surface.In this process, while making to have the round-ended cylinder body along the circumferential direction rotate, usually
There is the opening portion spray paint of round-ended cylinder body from this using multiple injection nozzles, so as to be applied to the inner surface for having round-ended cylinder body
Dress.In addition, make cylindrical portion using metal pattern in the shoulder neck molding procedure using shoulder neck flanger (ボ ト Le ネ ッ カ ー)
Above-mentioned upper end side part lower end side undergauge and be molded above-mentioned shoulder 6 and neck 7, then in lid mounting portion molding procedure lead to
It crosses and implements above-mentioned screw chasing processing etc. to the upper end side of neck 7 and form above-mentioned lid mounting portion 8, thus implement in the above described manner
There is the body formed can body 1 for Bottle ＆ Can as shown in Figure 1 of round-ended cylinder after application.
After being cleaned by the second cleaning process and drying such molding can body 1, check have in inspection operation
Pore-free or whether there is outside foreign matter attachment, scar, pollution, printing it is bad etc. after be transported in beverage plant etc., in filling drink
It is listed after the contents such as material after lid mounting portion 8 installs lid (not shown) and seals.It is in addition, during above-mentioned each process or each
In process, carry out cut-out have round-ended cylinder body upper edge deburring or the section of the annular convex 2b of reshaping bottom as required
The bottom reshaping of shape.
Also, in the Bottle ＆ Can of the present embodiment manufactured by the manufacturing method of this embodiment, the can body 1 it is upper
State the outer diameter in bottle portion 5, i.e., the diameter phi 1 of the outer circumferential surface in bottle portion 5 shown in FIG. 1 is below 58mm, the periphery in the bottle portion 5
The diameter phi 1 in face is (convex for the ring-type in the outer surface of can body 1 in the present embodiment from the lower end of bottom 2 with can body 1
The protruding end of portion 2b) to the ratio between the height h in tank axis C directions of the above-mentioned opening portion 4 of upper end side φ 1/h be less than 0.35, further
The Wall-Thickness Difference of the most thick part of the wall thickness of can body 1 in bottle portion 5 part most thin with wall thickness is below 0.05mm.
In addition, as shown in Fig. 2, in the Bottle ＆ Can of present embodiment, the pleurapophysis outside tank axis C directions of above-mentioned annular convex 2b
The protruding end portion 2c gone out is protruded in a manner that the section along tank axis C is in substantially semicircle arcuation.From the outside in tank axis C directions and the protruding end
It is grounded formed by plane tangent and vertical with tank axis C portion 2c and annular convex 2b in diameter of a circle, i.e. 1 outer surface of can body
The protruding end of annular convex 2b is around the ratio between the diameter phi 1 of outer circumferential surface in the tank axis C diameter of a circle φ 2 formed and above-mentioned bottle portion φ 2/
φ 1 is more than 0.85.
In addition, can body 1 so to the outside in tank axis C directions with the prominent annular convex 2b of section substantially semicircle arcuation
Protruding end portion 2c in inner peripheral surface be formed on tank axis C directions on the center O positions of the semi arch compared with tank axis C's
The width W of radial direction (direction also referred to as vertical with tank axis C or radial direction) is more than 2.5mm.I.e., in the present embodiment,
To utilize the inside of the annular convex 2b inner surfaces after the plane cut-out of center O that is vertical with tank axis C and passing through above-mentioned semi arch
The mode at intervals of more than 2.5mm between face and lateral surface, annular convex is formed by DI stamping procedures and bottom reshaping
2b.In other words, in the section (passing through tank axis C and the section parallel with tank axis C) along tank axis C, the tank axis C directions of O at center
The width W of the radial direction of the inner peripheral surface of protruding end portion 2c on position is more than 2.5mm.
Due to the diameter phi 1 of the outer diameter, the i.e. outer circumferential surface in bottle portion 5 in the bottle portion 5 of the can body 1 of Bottle ＆ Can so formed
For below 58mm, therefore it is easy to hold, and even if the opening and closing also easily covered for children or the small women of hand, old man, and
Possibility Bottle ＆ Can to drop when not successfully holding is also small.In addition, even so the outer diameter in bottle portion 5 is thinner, the bottle
The diameter phi 1 of the outer circumferential surface in portion 5 and the height h in the tank axis C directions of the opening portion 4 of the lower end from bottom 2 to the upper end of can body 1
The ratio between for less than 0.35, the height of can body 1 can be increased compared with the outer diameter in bottle portion 5, so as to fully ensure bottle
The inner capacities of tank.In addition, while in order to so ensure inner capacities, it is easier to hold can body 1, preferably above-mentioned diameter phi 1 is
Below 58mm.Furthermore it is preferred that diameter phi 1 is set to more than 48mm, more preferably 52~57mm, but it's not limited to that.In addition,
It is preferred that the ratio between diameter phi 1 and height h φ 1/h are set to more than 0.30, more preferably 0.34~0.35, but it's not limited to that.
Also, in the Bottle ＆ Can of said structure and its manufacturing method, can body 1 there is into round-ended cylinder as bottle portion 5
The Wall-Thickness Difference of the most thick part of the wall thickness of cylindrical portion in body (DI tanks) part most thin with wall thickness is set to 0.05mm, and is formed
The size of thickness difference between the most thin part in the most thick part of the wall thickness and wall thickness is compared with the diameter phi 1 with outer circumferential surface
What is attenuated and become smaller has the ratio formed by the internal diameter of round-ended cylinder body minimum.
Therefore, when punch and multiple cupping tools is utilized to implement re-drawing to cup-shaped blank and be thinned in DI stamping procedures
Processing and bottom processing and forming and when forming round-ended cylinder body, punch is stuck on the inner peripheral surface of round-ended cylinder body during drawing punch
Situation is less, and so-called punch extraction property is good.It is in addition, most thin in the most thick part of the wall thickness for being molded this cylindrical portion and wall thickness
Part Wall-Thickness Difference it is small when having round-ended cylinder body, in DI stamping procedures using no recess portion and with external diameter constant barrel surface
The punch of the outer circumferential surface of shape, without the punch with recess portion as using punch as described in Patent Document 1.I.e.
Using this punch, but since the diameter phi 1 of the Bottle ＆ Can of present embodiment is smaller, therefore, it is difficult to generate patent document 1 to be remembered
The problem of invention wall unevenness to be solved of load is even lacks material or bottle fracture so as to generate.
Therefore, Bottle ＆ Can formed according to this and its manufacturing method, generate when punch described above engages extract it is bad
Situation it is less, can steadily form round-ended cylinder body and manufacture can body 1.Therefore, even if such as periphery in above-mentioned bottle portion 5
The diameter phi 1 in face is the Bottle ＆ Can of below 58mm, also can effectively be manufactured, and can also prevent finished product rate from declining.
Furthermore it is preferred that by the Wall-Thickness Difference of the most thick part of the wall thickness of the can body 1 in bottle portion 5 part most thin with wall thickness, there is bottom
The Wall-Thickness Difference of the most thick part of the wall thickness of the cylindrical portion of the cylinder part most thin with wall thickness is set to minimum, and more preferably 0.010
~0.040, but it's not limited to that.
In addition, the Bottle ＆ Can of present embodiment is formed, the protruding end of the annular convex 2b in the bottom 2 of can body 1 is around tank
The diameter of a circle φ 2 that axis C (circumferencial direction) is formed is more than with the ratio between the diameter phi 1 of outer circumferential surface in above-mentioned bottle portion 5 2/ φ 1 of φ
0.85, and the protruding end of annular convex 2b in bottom 2 near peripheral side.Therefore, even if being still thin Bottle ＆ Can described above,
It is grounded to improve the stability erect when placing Bottle ＆ Can by the protruding end for making annular convex 2b, can prevent such as under uncapped state
The situation that Bottle ＆ Can easily topples over and content is caused to overflow.Furthermore it is preferred that diameter phi 2 and the ratio between diameter phi 1 2/ φ 1 of φ are set to
Less than 0.95, more preferably 0.85~0.95, but it's not limited to that.
On the other hand, in the present embodiment, annular convex 2b in the protruding end portion 2c of annular convex 2b along tank axis C's
Inner peripheral surface in section on the center O positions of formed convex curve (semi arch) is 2.5mm compared with the radial width W of tank axis C
More than, i.e., significantly ensuring the protruding end portion 2c of annular convex 2b is having the opening width in round-ended cylinder body on surface.
Therefore, when in coating process as it is above-mentioned using injection nozzle spray out coating and to being molded in DI stamping procedures
Have round-ended cylinder body inner surface carry out application when, even if the cylindrical portion for having round-ended cylinder body as bottle portion 5 because of can body 1
Outer diameter it is smaller and spread of spray is blocked, also can be by the way that the coating that spraying goes out be made to rebound to make coating from larger width
The opening portion of the annular convex 2b of W openings is also flowed into the inboard inner surface of protruding end effectively to implement application, so as to anti-
Only corrosion resistance is damaged due to application is uneven.Particularly, the protruding end of such as above-mentioned annular convex 2b in the bottom of can body 12 most
It is effect in the case of outer side.Furthermore it is preferred that above-mentioned width W is set to more than 1.0mm, more preferably 2.0~2.5mm,
But it's not limited to that.
Furthermore it is preferred that the such as above-mentioned protruding end portion 2c in evagination wire is more by the upper of can body 1 in the section along tank axis C
The internal face 2d of the annular convex 2b of end is 0 ° i.e. model parallel or until 8 ° with tank axis C with tank axis C angulations
It is tilted in a manner of with towards upper end side and towards the inner circumferential side of can body 1 in enclosing.Specifically, internal face 2d glossily connects
Circular top part 2a and protruding end portion 2c are met, and internal face 2d is located at tank axis C directions upper end side compared with the center O of protruding end portion 2c.And
And preferably internal face 2d and tank axis C angulations are 0 °~8 °.If although internal face 2d compared with tank axis C with more than 8 °
Angle with towards upper end side and towards can body 1 inner circumferential side tilt, then coating flows easily into, it is likely that reduce tank master
The compressive resistance of the bottom 2 of body 1.
[embodiment]
Then, enumerating the embodiment of the present invention confirms the effect of the present invention.In the present embodiment, it is primarily based on
State embodiment shaping has round-ended cylinder body (DI tanks) by be manufactured to two kinds of following Bottle ＆ Cans：The outer circumferential surface in bottle portion 5 it is straight
Footpath φ 1 is below 58mm, and the diameter phi 1 of the outer circumferential surface in the bottle portion 5 is opened with the lower end from bottom 2 to the upper end of can body 1
The ratio between the height h in tank axis C directions of oral area 4 φ 1/h are less than 0.35, the most thick part of the wall thickness of the can body 1 in bottle portion 5
The Wall-Thickness Difference of most thin part is below 0.05mm with wall thickness, and the protruding end of further annular convex 2b is around the tank axis C circles formed
Diameter phi 2 is more than 0.85 with the ratio between the diameter phi 1 of outer circumferential surface in bottle portion 5 2/ φ 1 of φ.Using above two Bottle ＆ Can as embodiment
1st, 2, each size and ratio when being fabricated to Bottle ＆ Can is shown in table 1.In addition, Wall-Thickness Difference is following value：There is bottom by molding
The wall thickness in the bottle portion 5 (cylindrical portion for having round-ended cylinder body) of three tanks, is obtained in units of each tank each tank in cylinder
It is respectively to have at 20% position of round-ended cylinder body height in the bottom and upper end for having round-ended cylinder body along tank axis C directions distance, edge
The difference of maxima and minima when circumferencial direction measures at eight respectively at equal intervals, and the value after being averaged.
In addition, as the comparative example for these embodiments 1,2, based on the manufacturing method manufacture recorded in patent document 1
There is a round-ended cylinder body (DI tanks) by be manufactured to a kind of following Bottle ＆ Can：Although the diameter phi 1 of the outer circumferential surface in bottle portion 5 and reality
It is identical to apply example 1, but height h is low and ratio φ 1/h are more than 0.35, and 2/ φ 1 of ratio φ are less than 0.85, and the tank in bottle portion 5
The Wall-Thickness Difference of the most thick part of the wall thickness of main body 1 part most thin with wall thickness is more than 0.05.As comparative example 1, in table 1
Each size and ratio when showing to be fabricated to Bottle ＆ Can.In addition, Wall-Thickness Difference is to have three tanks in round-ended cylinder body by equally molding
The wall thickness in bottle portion 5, each tank is obtained in units of each tank is respectively having bottom along tank axis C directions apart from bottom and upper end
At 20% position of cylinder height, along the circumferential direction at equal intervals respectively measure eight when maxima and minima difference
And the value after being averaged, the Wall-Thickness Difference of the Bottle ＆ Can of the comparative example 1 are all higher than 0.05mm.
[table 1]
| φ1(mm) | h(mm) | φ1/h | φ2(mm) | φ2/φ1 | |
| Embodiment 1 | 52.6 | 157 | 0.34 | 47.6 | 0.90 |
| Embodiment 2 | 58.0 | 166 | 0.35 | 50.0 | 0.86 |
| Comparative example 1 | 52.6 | 124 | 0.42 | 42.0 | 0.80 |
It, will not be because even if continuously shaped 1000 tank has round-ended cylinder body as a result, for the Bottle ＆ Can of embodiment 1,2
The extraction of punch is bad and DI press machines is caused to stop.On the contrary, when manufacturing the Bottle ＆ Can of comparative example 1, there is bottom manufacturing 1000 tanks
Before cylinder, DI press machines is caused frequently to stop due to the extraction of punch is bad, manufacture efficiency or finished product can not be avoided
The decline of rate.
Then, two kinds of following Bottle ＆ Cans of 100 tanks are manufactured respectively as embodiment 11,12：Diameter phi 1, φ 2, height h, ratio
Rate φ 1/h, φ 2/ φ 1 and Wall-Thickness Difference are same as Example 1, and by the protruding end of the annular convex 2b in the section along tank axis C
The inner peripheral surface of annular convex 2b on the center O positions of convex curve formed by portion 2c is set to compared with the radial width W of tank axis C
2.5mm manufactures two kind Bottle ＆ Cans of 100 tanks width W less than 2.5mm respectively as comparative example 11,12.
Also, judge that application is in the inner surface of can body 1 by measuring the ERV (instantaneous current value) of these Bottle ＆ Cans
It is no effectively to implement to the protruding end of annular convex 2b, will have a case that the Bottle ＆ Can that ERV is more than 25mA is evaluated in each 100 tank
For the mark (×) of fork, the situation there will be no the Bottle ＆ Can that ERV is more than 25mA is evaluated as the mark (zero) of circle.In table 2 with width
Degree W shows the result together.
In addition, ERV is obtained by the following method：First, the brine that concentration is 1% is injected into can body 1, and will
Can body 1 is used as anode, then makes after being impregnated into as the stainless steel rod of cathode in the brine in can body 1, to anode
Apply 4 seconds 6.2 volts of potential differences between cathode, measurement applies the immediate current (ERV) after the potential difference.
[table 2]
| W(mm) | ERV(mA) | |
| Embodiment 11 | 3.0 | ○ |
| Embodiment 12 | 2.5 | ○ |
| Comparative example 11 | 2.0 | × |
| Comparative example 12 | 1.5 | × |
According to the table 2 as a result, the 3.0mm and 2.5mm that above-mentioned width W is set to more than 2.5mm embodiment 11,12
In, the Bottle ＆ Can that ERV is more than 25mA is not confirmed, that is, the inner surface not confirmed in can body 1 has application irregular or application
Undesirable Bottle ＆ Can in contrast, in the comparative example 11,12 for being 2.0mm and 1.5mm in above-mentioned width W, confirms ERV as 25mA
Above Bottle ＆ Can, it is possible to cause corrosion proof reduction due to application is bad.
Industrial availability
According to the present invention, even if being the thin Bottle ＆ Can of the outer diameter in bottle portion, it can also provide and be difficult to generate punching in manufacturing process
The undesirable Bottle ＆ Can of extraction of head, so as to inhibit the decline of manufacture efficiency or yield rate caused by bottle is broken.
Reference sign
1 can body
The bottom of 2 can bodies 1
2a circular top parts
2b annular convex
The protruding end portion of 2c annular convex 2b
The internal face of 2d annular convex 2b
The peripheral part of 3 can bodies 1
4 opening portions
5 bottle portions
6 shoulders
7 necks
8 lid mounting portions
C tank axis
The diameter of the outer circumferential surface in 1 bottle portions 5 of φ
The height in the tank axis C directions of the opening portion 4 of the lower end from bottom 2 to the upper end of h can bodies 1
The diameter of a circle that the protruding end of 2 annular convex 2b of φ is formed around tank axis C
The center of O convex curves formed by the protruding end portion 2c of annular convex 2b in the section along tank axis C
W is in the section along tank axis C formed by the protruding end portion 2c of annular convex 2b on the center O positions of convex curve
The radial width compared with tank axis C of the inner peripheral surface of annular convex 2b
Claims (4)
1. a kind of Bottle ＆ Can, with the integrally formed peripheral part in the bottom of can body, from above-mentioned bottom towards the upper of above-mentioned can body
End opening portion be sequentially formed with cylindric bottle portion centered on tank axis, with towards upper end side and undergauge shoulder, from
The neck and lid mounting portion, above-mentioned Bottle ＆ Can that the shoulder extends further towards upper end side be characterized in that,
The diameter (φ 1) of the outer circumferential surface in above-mentioned bottle portion is below 58mm,
The diameter (φ 1) of the outer circumferential surface in the bottle portion is upper with the lower end from bottom of above-mentioned can body to above-mentioned upper end opening portion
It is less than 0.35 to state the ratio between height (h) of tank direction of principal axis φ 1/h,
The Wall-Thickness Difference of the most thick part of the wall thickness of above-mentioned can body in the above-mentioned bottle portion part most thin with wall thickness is 0.05mm
Below.
2. Bottle ＆ Can according to claim 1, which is characterized in that
Form concave circular top part on the inside of oriented tank direction of principal axis in the center of the bottom of above-mentioned can body, and with the circular top part
The periphery of the bottom of above-mentioned can body that is connected of outer peripheral edge portion, be formed on the circumferencial direction around above-mentioned tank axis along above-mentioned
In the section of tank axis protruding end portion be in evagination wire and the annular convex prominent to the outside of above-mentioned tank direction of principal axis,
The protruding end of the annular convex is around the diameter of the diameter of a circle (φ 2) that above-mentioned tank axis forms and the outer circumferential surface in above-mentioned bottle portion
2/ φ 1 of the ratio between (φ 1) φ are more than 0.85.
3. Bottle ＆ Can according to claim 1 or 2, which is characterized in that
Form concave circular top part on the inside of oriented tank direction of principal axis in the center of the bottom of above-mentioned can body, and with the circular top part
The periphery of the bottom of above-mentioned can body that is connected of outer peripheral edge portion, be formed on the circumferencial direction around above-mentioned tank axis along above-mentioned
In the section of tank axis protruding end portion be in evagination wire and the annular convex prominent to the outside of above-mentioned tank direction of principal axis,
The ring in the section along above-mentioned tank axis formed by the protruding end portion of above-mentioned annular convex on the position at the center of convex curve
The radial width (W) compared with above-mentioned tank axis of the inner peripheral surface of shape protrusion is more than 2.5mm.
4. a kind of manufacturing method of Bottle ＆ Can, for the manufacturer of the Bottle ＆ Can described in any one of claim 1 to claim 3
Method, the manufacturing method of above-mentioned Bottle ＆ Can are characterized in that possessing：
DI stamping procedures, to metallic plate through drawing process molding cup-shaped blank implement re-drawing and be thinned processing and bottom into
Type is processed, and what shaping was formed with above-mentioned bottom and the outer diameter cylindrical portion identical with above-mentioned bottle portion has round-ended cylinder body；
Shoulder neck molding procedure by the way that this is made to have the upper end side part undergauge of the above-mentioned cylindrical portion of round-ended cylinder body, is molded above-mentioned shoulder
Portion and with from the shoulder towards upper end side and further undergauge above-mentioned neck；With
Lid mounting portion molding procedure is molded above-mentioned lid mounting portion in the upper end of above-mentioned neck,
It is shaped in above-mentioned DI stamping procedures, the most thick part of the wall thickness in the above-mentioned above-mentioned cylindrical portion for having a round-ended cylinder body and wall
The Wall-Thickness Difference of thick most thin part is below 0.05mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016231588A JP6820728B2 (en) | 2016-11-29 | 2016-11-29 | Bottle cans and their manufacturing methods |
| JP2016-231588 | 2016-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108115058A true CN108115058A (en) | 2018-06-05 |
Family
ID=62228096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710153185.3A Pending CN108115058A (en) | 2016-11-29 | 2017-03-15 | Bottle ＆ Can and its manufacturing method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6820728B2 (en) |
| KR (1) | KR20180060894A (en) |
| CN (1) | CN108115058A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113316544A (en) * | 2019-01-31 | 2021-08-27 | 环宇制罐株式会社 | Bottle, method for manufacturing bottle, and method for designing bottle |
| TWI787960B (en) * | 2020-09-10 | 2022-12-21 | 日商東洋製罐集團控股股份有限公司 | Manufacturing method for can body and manufacturing line for the same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7260979B2 (en) * | 2018-09-11 | 2023-04-19 | アルテミラ製缶株式会社 | Bottle can manufacturing method |
| JP7260980B2 (en) * | 2018-09-11 | 2023-04-19 | アルテミラ製缶株式会社 | Bottle can manufacturing method |
| JP7310412B2 (en) * | 2018-11-15 | 2023-07-19 | アルテミラ製缶株式会社 | Can and its manufacturing method |
| JP6760460B1 (en) * | 2019-10-17 | 2020-09-23 | 東洋製罐グループホールディングス株式会社 | Manufacturing method of seamless can body and seamless can body |
| EP3919200A4 (en) * | 2019-01-30 | 2022-11-02 | Toyo Seikan Group Holdings, Ltd. | Seamless can body and method for producing seamless can body |
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| JP4800023B2 (en) * | 2005-12-02 | 2011-10-26 | 大和製罐株式会社 | Aluminum alloy can with small capacity screw |
| JP5015120B2 (en) | 2008-11-25 | 2012-08-29 | ユニバーサル製缶株式会社 | DI can manufacturing equipment |
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2016
- 2016-11-29 JP JP2016231588A patent/JP6820728B2/en active Active
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2017
- 2017-03-13 KR KR1020170031152A patent/KR20180060894A/en not_active Application Discontinuation
- 2017-03-15 CN CN201710153185.3A patent/CN108115058A/en active Pending
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| CN1617821A (en) * | 2001-12-04 | 2005-05-18 | 埃克沙尔公司 | Aluminum receptacle with threaded outsert |
| CN102378722A (en) * | 2009-04-06 | 2012-03-14 | 武内普莱斯工业株式会社 | Metal bottle can |
| CN104029881A (en) * | 2009-04-06 | 2014-09-10 | 武内普莱斯工业株式会社 | Metal bottle can |
| CN103818601A (en) * | 2014-03-04 | 2014-05-28 | 广东欧亚包装有限公司 | Aluminum thin-wall screw beverage bottle and manufacturing method thereof |
| CN204776389U (en) * | 2015-06-30 | 2015-11-18 | 滁州嘉美印铁制罐有限公司 | Metal container |
| CN205327613U (en) * | 2016-01-13 | 2016-06-22 | 佛山市定中机械有限公司 | Two arch bottom surface formulas are unscrewed and are covered metallic tank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113316544A (en) * | 2019-01-31 | 2021-08-27 | 环宇制罐株式会社 | Bottle, method for manufacturing bottle, and method for designing bottle |
| TWI787960B (en) * | 2020-09-10 | 2022-12-21 | 日商東洋製罐集團控股股份有限公司 | Manufacturing method for can body and manufacturing line for the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6820728B2 (en) | 2021-01-27 |
| KR20180060894A (en) | 2018-06-07 |
| JP2018087031A (en) | 2018-06-07 |
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