JPH0331524B2 - - Google Patents
Info
- Publication number
- JPH0331524B2 JPH0331524B2 JP61111347A JP11134786A JPH0331524B2 JP H0331524 B2 JPH0331524 B2 JP H0331524B2 JP 61111347 A JP61111347 A JP 61111347A JP 11134786 A JP11134786 A JP 11134786A JP H0331524 B2 JPH0331524 B2 JP H0331524B2
- Authority
- JP
- Japan
- Prior art keywords
- cup
- shaped body
- die
- generatrix
- punch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 4
- 206010040954 Skin wrinkling Diseases 0.000 description 6
- 230000037303 wrinkles Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 235000011962 puddings Nutrition 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、食品類等を収納するための容器等に
用いられる、カツプ状体の製造方法に関し、さら
に詳しくは胴壁部に母線と交叉する凹凸模様を有
するカツプ状体の絞り成形による製造方法に関す
る。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method of manufacturing a cup-shaped body used for containers for storing foods, etc. The present invention relates to a method for manufacturing a cup-shaped body having an uneven pattern by drawing.
ここに母線とは、胴壁部が例えば逆円錐台形の
場合、この逆円錐台を形成する円錐の頂点を通
る、任意の該逆円錐台の面上の直線をいう。 When the body wall is, for example, in the shape of an inverted truncated cone, the generatrix here refers to a straight line on the surface of any inverted truncated cone that passes through the apex of the cone forming the inverted truncated cone.
（従来の技術）
胴壁部に母線方向に延びる凹凸模様を有するカ
ツプ状体は、実開昭51−45005号公報や実開昭58
−117919号公報に記載されているように、母線方
向に延びる凹凸部を有する内壁面を備えるダイス
と、対応する形状の凹凸部を有する剛性のポンチ
を用いてプレス成形することによつて製造できる
ことが知られている。(Prior art) A cup-shaped body having an uneven pattern extending in the generatrix direction on the body wall is disclosed in Japanese Utility Model Application No. 51-45005 and Japanese Utility Model Application No. 58
- As described in Publication No. 117919, it can be manufactured by press molding using a die with an inner wall surface having an uneven part extending in the generatrix direction and a rigid punch having an uneven part of a corresponding shape. It has been known.
しかしながら胴壁部に母線方向と交叉する凹凸
模様を有するカツプ状体の製造は、前記のような
剛性のポンチを用いると、特にブランクが薄く撓
み易い場合、成形中の胴壁部にしわ（殆どが母線
方向の縦しわ）が発生し易く、このしわがダイス
の凹凸部と交叉する箇所で押し潰されて、満足な
形状を有する凹凸模様が得られず、外観を損ねた
り、甚だしい場合には材料を損傷してピンホール
の発生を招き易い。 However, when manufacturing a cup-shaped body having an uneven pattern crossing the generatrix direction on the body wall, using a rigid punch such as the one described above, especially when the blank is thin and easily bent, the body wall during forming may be wrinkled (mostly wrinkled). vertical wrinkles in the direction of the generatrix) are likely to occur, and these wrinkles are crushed where they intersect with the uneven parts of the die, making it impossible to obtain an uneven pattern with a satisfactory shape, impairing the appearance, or in severe cases. It is easy to damage the material and cause pinholes.
そのためこの種のカツプ状体の製造は従来、多
段絞り成形法によるか、もしくは凹凸模様の形状
によつて多段絞り成形が不可能の場合は、胴壁部
が平坦な（つまり凹凸のない）カツプ状体を先づ
絞り加工により形成した後、液圧成形法等によつ
てこの胴壁部に凹凸模様を形成することによつて
行なつていた。従つて工程が複雑となり、生産コ
ストが高くなるという問題があつた。 For this reason, this type of cup-shaped body has conventionally been manufactured using a multi-stage drawing method, or, if multi-stage drawing is not possible due to the shape of the uneven pattern, a cup with a flat body wall (that is, without unevenness). This was done by first forming a shaped body by drawing, and then forming an uneven pattern on the body wall using a hydroforming method or the like. Therefore, there was a problem that the process became complicated and the production cost increased.
そのため胴壁部に母線と交叉する凹凸模様を有
するカツプ状体は模様の選択幅がひろく、プリン
等の食品類を収納するための小型容器として用い
た場合、凹凸模様にもとづく補強効果と、顧客を
惹きつける、前記公報に記載のカツプ状体に見ら
れないデザイン効果を有するにもかかわらず、殆
んど実用されていなかつた。 Therefore, a cup-shaped body with an uneven pattern that intersects with the generatrix line on the body wall has a wide range of patterns to choose from, and when used as a small container for storing foods such as pudding, the reinforcing effect based on the uneven pattern and the customer Although it has a design effect that attracts customers and is not seen in the cup-shaped body described in the above-mentioned publication, it has hardly been put into practical use.
（発明が解決しようとする問題点）
本発明は胴壁部に母線と交叉する凹凸模様を有
するカツプ状体を一工程の絞り成形で製造する方
法を提供することを目的とする。(Problems to be Solved by the Invention) An object of the present invention is to provide a method for manufacturing a cup-shaped body having a concavo-convex pattern intersecting the generatrix line on the body wall by one-step drawing forming.
（問題点を解決するための手段）
本発明の、胴壁部に母線と交叉する凹凸模様を
有するカツプ状体の製造方法は、キヤビテイ周壁
面に母線と交叉する方向に延びる凹凸部を有する
ダイス、および剛性の芯部と該芯部の側壁を包囲
する弾性材料よりなる筒状部を有し、かつ該筒状
部の外径が該ダイスの肩曲率部の最小径より大き
いポンチを用いて絞り成形を行なうことを特徴と
する。ダイスの凹凸部は、カツプ状体の凹凸模様
に対応する形状を有する。(Means for Solving the Problems) The method of manufacturing a cup-shaped body having a concavo-convex pattern on the body wall that intersects with the generatrix line of the present invention uses a die having a concavo-convex pattern extending in the direction intersecting the generatrix line on the cavity peripheral wall surface. and a cylindrical part made of an elastic material surrounding a rigid core and a side wall of the core, and the outer diameter of the cylindrical part is larger than the minimum diameter of the shoulder curvature of the die. It is characterized by performing drawing forming. The uneven portion of the die has a shape corresponding to the uneven pattern of the cup-shaped body.
（作用）
ポンチの弾性材料よりなる筒状部の外径はダイ
スの肩曲率部の最小径よりも大きい。そのためカ
ツプ状体の胴壁部は絞り加工により形成されなが
ら、ポンチの筒状部により弾性的にダイスのキヤ
ビテイ周壁面に対して押圧され、て、ブランクが
薄く撓み安い場合であつても、しわの発生、成長
を抑制されて、キヤビテイ周壁面の母線と交叉す
る方向に延びる凹凸部に対応する形状の凹凸模様
を形成される。(Function) The outer diameter of the cylindrical portion of the punch made of an elastic material is larger than the minimum diameter of the shoulder curvature of the die. Therefore, while the body wall portion of the cup-shaped body is formed by drawing, it is elastically pressed against the peripheral wall surface of the cavity of the die by the cylindrical portion of the punch, and even if the blank is thin and easy to bend, it will not wrinkle. This suppresses the generation and growth of the cavities, thereby forming an uneven pattern having a shape corresponding to the uneven parts extending in a direction intersecting the generatrix of the cavity peripheral wall surface.
ポンチの底面は剛性の芯部によつて形成されて
いるので、カツプ状体の底部を該底面によつて規
定された所定の形状に形成することができる。 Since the bottom of the punch is formed by a rigid core, the bottom of the cup can be formed into a predetermined shape defined by the bottom.
（実施例）
第１図の１は本発明の方法により製造された、
横断面が円形のカツプ状体の例を示したものであ
つて、胴壁部２に複数のリング状段部３による凹
凸模様４が形成されていて、底部５に向つて下細
となつている。フランジ部６の周縁には断面円形
状のビード部７が形成されている。(Example) 1 in FIG. 1 was manufactured by the method of the present invention,
This shows an example of a cup-shaped body with a circular cross section, in which an uneven pattern 4 of a plurality of ring-shaped steps 3 is formed on the body wall 2, and tapers downward toward the bottom 5. There is. A bead portion 7 having a circular cross section is formed on the periphery of the flange portion 6 .
カツプ状体１は次のようにして製造される。塗
装および／または印刷された錫めつき鋼板、テイ
ンフリースチール、アルミニウム等の金属シート
又は箔、もしくは金属シート又は箔とプラスチツ
クフイルムとの積層体等より打抜かれたブランク
１０を、第２図に示すポンチ１１およびダイス１
２を用いて絞り成形する。 The cup-shaped body 1 is manufactured as follows. A blank 10 punched from a painted and/or printed metal sheet or foil such as tin-plated steel plate, stain-free steel, aluminum, or a laminate of a metal sheet or foil and a plastic film is shown in FIG. Punch 11 and Dice 1
2 to draw and form.
ポンチ１１は鋼等によりなる剛性の芯部１３、
および芯部１３の側壁１３ａを包囲する、ウレタ
ン系ゴム（好ましくはシヨアＡ硬度約70〜90の）
等の弾性材料よりなる円筒状部１４を備えてい
る。芯部１３の下端は底面１３b1が形成されるべ
きカツプ状体１の底部５と対応する形状のフラン
ジ部１３ｂとなつている。 The punch 11 has a rigid core 13 made of steel or the like,
and urethane rubber (preferably with Shore A hardness of approximately 70 to 90) surrounding the side wall 13a of the core portion 13.
It has a cylindrical portion 14 made of an elastic material such as. The lower end of the core portion 13 is a flange portion 13b having a shape corresponding to the bottom portion 5 of the cup-shaped body 1 on which the bottom surface 13b1 is to be formed.
円筒状部１４の外径は、フランジ部１３ｂの外
径よりも大きく、さらに後記のダイス１２の肩曲
率部１９の最小径ｄよりも大きく定められてい
る。円筒状部１４と芯部の側壁１３ａの間には、
芯部１３に固着された円筒状部１４の上部１４ａ
を除いて若干の空〓１５が形成されていて、絞り
成形のさいポンチ１１全体が比較的容易にダイス
１２のキヤビテイ１２ｂ内に入り込めるようにな
つている。 The outer diameter of the cylindrical portion 14 is set larger than the outer diameter of the flange portion 13b, and further larger than the minimum diameter d of a shoulder curvature portion 19 of the die 12, which will be described later. Between the cylindrical part 14 and the side wall 13a of the core part,
Upper part 14a of cylindrical part 14 fixed to core part 13
A slight void 15 is formed except for the punch 11, so that the entire punch 11 can be inserted into the cavity 12b of the die 12 relatively easily during drawing.
ダイス１２のキヤビテイ周壁面１６には、形成
されるべきカツプ状体１の胴壁部２の段部３に対
応する複数のリング状段差部１７が形成されてお
り、従つて凹凸模様４に対応する形状の凹凸部１
８が形成されている。２０はしわ押え具であつ
て、その底面２０ａの内径はダイスの肩曲率部１
９の最大径よりも若干大きく定められている。 A plurality of ring-shaped stepped portions 17 are formed on the cavity peripheral wall surface 16 of the die 12, corresponding to the stepped portions 3 of the body wall portion 2 of the cup-shaped body 1 to be formed, and therefore correspond to the uneven pattern 4. Uneven part 1 shaped like
8 is formed. 20 is a wrinkle presser whose bottom surface 20a has an inner diameter equal to the shoulder curvature portion 1 of the die.
It is set to be slightly larger than the maximum diameter of No. 9.
ブランク１０をダイス１２の上面１２ａに載置
して、しわ押え具２０でその周辺部を押圧した状
態で、ポンチ１１をダイス１２のキヤビテイ１２
ｂ内に押込むと、第３図に示すように、ブランク
１０は絞り込まれるが、そのさい形成中の胴壁部
２′がポンチの円筒状部１４によつてキヤビテイ
周壁面１６に対して弾性的に押圧される。その結
果成形終了後のカツプ状体の胴壁部２に、凹凸部
１８に対応する形状の凹凸模様４が形成される。
上記カツプ状体を抜き出した後、フランジ部６に
ビード部７を形成することにより、カツプ状体１
が製造される。 Place the blank 10 on the upper surface 12a of the die 12, press the periphery with the wrinkle presser 20, and insert the punch 11 into the cavity 12a of the die 12.
As shown in FIG. 3, when the blank 10 is pushed into the cavity 1, the blank 10 is squeezed, but at this time, the body wall portion 2' being formed is elastically pressed against the cavity peripheral wall surface 16 by the cylindrical portion 14 of the punch. be under pressure. As a result, a concave-convex pattern 4 having a shape corresponding to the concave-convex portion 18 is formed on the body wall portion 2 of the cup-shaped body after the molding is completed.
After extracting the cup-shaped body, a bead part 7 is formed on the flange part 6 to form the cup-shaped body 1.
is manufactured.
なお絞り加工中ダイスの肩曲率部１９に対接す
るブランク１０の部分が常に円筒状部１４によつ
て弾性的に押圧されるので、ブランク１０を形成
する金属箔が薄く撓み易い場合（例えば約50μｍ
厚の軟質アルミニウム箔の場合）であつても、成
形されたカツプ状体の胴壁部やフランジ部６に皺
が残るおそれがない。なおポンチ１１の空〓１５
は必ずしも設けられなくてもよい。 Note that during the drawing process, the part of the blank 10 that is in contact with the shoulder curvature part 19 of the die is always elastically pressed by the cylindrical part 14, so if the metal foil forming the blank 10 is thin and easy to bend (for example, about 50 μm
Even if the aluminum foil is thick and soft, there is no risk of wrinkles remaining on the body wall or flange 6 of the molded cup-shaped body. Furthermore, the sky of punch 11 = 15
does not necessarily have to be provided.
第４図、第５図は胴壁部２２に形成される凹凸
模様２４がダイヤカツト模様である、本発明の方
法によつて製造されるカツプ状体２１の例を示し
たものである。 FIGS. 4 and 5 show an example of a cup-shaped body 21 manufactured by the method of the present invention, in which the uneven pattern 24 formed on the body wall portion 22 is a diamond cut pattern.
本発明は以上の実施例によつて制約されるもの
でなく、例えば凹凸模様は母線と交叉する範囲で
適宜の形状をとりうるものである。抜き勾配がな
い凹凸模様の場合は、ダイスとして割型を用いる
ことができる。 The present invention is not limited to the above embodiments; for example, the uneven pattern can take any appropriate shape within the range where it intersects with the generatrix. In the case of an uneven pattern with no draft angle, a split die can be used as the die.
（発明の効果）
本発明によれば、ブランクが薄く撓み易い場合
であつても、胴壁部に母線と交叉する満足な形状
の胴壁部に凹凸模様を有するカツプ状体を一工程
の絞り成形で製造することができるという効果を
奏する。(Effects of the Invention) According to the present invention, even if the blank is thin and easily warped, a cup-shaped body having a concavo-convex pattern on the body wall with a satisfactory shape intersecting the generatrix can be formed in one drawing step. It has the advantage that it can be manufactured by molding.
第１図は本発明の方法により製造されたカツプ
状体の第１の例の１部切断正面図、第２図および
第３図はそれぞれ第１図のカツプ状を成形する直
前の状態、および成形途中の状態を示す縦断面
図、第４図および第５図はそれぞれ、本発明の方
法により製造されたカツプ状体の第２の例の正面
図および底面図である。
１，２１……カツプ状体、２，２２……胴壁
部、４，２４……凹凸模様、１１……ポンチ、１
２……ダイス、１３……芯部、１３ａ……側壁、
１４……（円）筒状部、１６……キヤビテイ周壁
面、１８……凹凸部、１９……肩曲率部。
FIG. 1 is a partially cutaway front view of a first example of a cup-shaped body manufactured by the method of the present invention, and FIGS. 2 and 3 are the state immediately before molding the cup-shaped body of FIG. 1, and A longitudinal sectional view showing a state in the middle of molding, and FIGS. 4 and 5 are a front view and a bottom view, respectively, of a second example of a cup-shaped body manufactured by the method of the present invention. 1, 21... Cup-shaped body, 2, 22... Trunk wall part, 4, 24... Uneven pattern, 11... Punch, 1
2... Dice, 13... Core, 13a... Side wall,
14... (circle) cylindrical part, 16... cavity peripheral wall surface, 18... uneven part, 19... shoulder curvature part.
Claims (1)
びる凹凸部を有するダイス、および剛性の芯部と
該芯部の側壁を包囲する弾性材料よりなる筒状部
を有し、かつ該筒状部の外径が該ダイスの肩曲率
部の最小径より大きいポンチを用いて絞り成形を
行なうことを特徴とする、胴壁部に母線と交叉す
る凹凸模様を有するカツプ状体の製造方法。1 A die having an uneven portion extending in a direction intersecting the generatrix on the cavity peripheral wall surface, and a cylindrical portion made of an elastic material surrounding a rigid core and a side wall of the core, and having an outer surface of the cylindrical portion. A method for manufacturing a cup-shaped body having a concave-convex pattern intersecting a generatrix on its body wall, the method comprising performing drawing forming using a punch whose diameter is larger than the minimum diameter of the shoulder curvature of the die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61111347A JPS62267028A (en) | 1986-05-15 | 1986-05-15 | Manufacture of cup-shaped body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61111347A JPS62267028A (en) | 1986-05-15 | 1986-05-15 | Manufacture of cup-shaped body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62267028A JPS62267028A (en) | 1987-11-19 |
| JPH0331524B2 true JPH0331524B2 (en) | 1991-05-07 |
Family
ID=14558886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61111347A Granted JPS62267028A (en) | 1986-05-15 | 1986-05-15 | Manufacture of cup-shaped body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62267028A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9115717D0 (en) * | 1991-07-20 | 1991-09-04 | Lawson Mardon M I Ltd | Sheet metal forming tool and method |
| US5755130A (en) * | 1997-03-07 | 1998-05-26 | American National Can Co. | Method and punch for necking cans |
| JP2006176155A (en) * | 2004-12-22 | 2006-07-06 | Toyo Seikan Kaisha Ltd | Photoluminescent container |
| CN102248093A (en) * | 2011-06-08 | 2011-11-23 | 郑威 | Process for manufacturing makeup cosmetic metal container with embossed inner surface |
| SI2574410T1 (en) * | 2011-10-01 | 2014-08-29 | Amcor Flexibles Zutphen B.V. | Device for forming deep-drawn containers |
| JP7170403B2 (en) * | 2018-02-19 | 2022-11-14 | ライオン株式会社 | cap |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5145005B2 (en) * | 1972-06-16 | 1976-12-01 | ||
| JPS574408A (en) * | 1980-06-10 | 1982-01-11 | Bridgestone Corp | Radial tire for heavy load |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5628083Y2 (en) * | 1974-09-28 | 1981-07-04 | ||
| JPS58117919U (en) * | 1982-02-05 | 1983-08-11 | 住軽アルミ箔株式会社 | Simple case maker |
-
1986
- 1986-05-15 JP JP61111347A patent/JPS62267028A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5145005B2 (en) * | 1972-06-16 | 1976-12-01 | ||
| JPS574408A (en) * | 1980-06-10 | 1982-01-11 | Bridgestone Corp | Radial tire for heavy load |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62267028A (en) | 1987-11-19 |
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