JPS58160114A - Heat bonding of plastic tape and its device - Google Patents
Heat bonding of plastic tape and its deviceInfo
- Publication number
- JPS58160114A JPS58160114A JP4252182A JP4252182A JPS58160114A JP S58160114 A JPS58160114 A JP S58160114A JP 4252182 A JP4252182 A JP 4252182A JP 4252182 A JP4252182 A JP 4252182A JP S58160114 A JPS58160114 A JP S58160114A
- Authority
- JP
- Japan
- Prior art keywords
- open end
- plastic tape
- protruding portion
- core
- thermally bonded
- 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.)
- Granted
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 55
- 229920003023 plastic Polymers 0.000 title claims abstract description 55
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000006698 induction Effects 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920001342 Bakelite® Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000000554 iris Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000005008 organosol coating Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920000260 silastic Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000005029 tin-free steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- B21D51/2684—Cans or tins having circumferential side seams
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はプラスチックテープの熱接着法および装置に関
し、さらに詳しくは金属筒体の開口端部にプラスチック
テープを熱接着する方法および装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for thermally bonding a plastic tape, and more particularly to a method and apparatus for thermally bonding a plastic tape to an open end of a metal cylinder.
１１図に示されるような、継目なしの上部缶体２と同じ
く継目なしの下部缶体３の夫々の開口端部２ａおよび３
ａを接着剤層４を介して嵌合し、接着された周面接合部
５ｔｌ−有する、胴壁部が比較的薄肉の金属缶１が、特
にビールや炭酸飲料等を収納用の耐圧缶（例えば内容積
約１〜１０リツトル）に好適であるとして提案されてい
る。この場合上部缶体２および下部缶体３は、通常その
内面となるべき面に、内容物に対する防食のため、耐食
性塗膜（例えばフェノールエイキシ系塗膜、又はオルガ
ノゾル等）を形成したブランクよシ、絞り加工等によっ
て形成されるので、内面は塗膜によって保護されている
が、内側の開口端部３ａの端面３ａ、１（切断によって
形成される）は金属が産出している。従って内容物に対
する耐食性の確保のためには、第１図に示すように、端
面３ｍＫおよび端面３ａｌ近傍の内周面３ｍｌをも接着
剤層４で被覆することが望ましい。The respective open ends 2a and 3 of the seamless upper can body 2 and the seamless lower can body 3 as shown in FIG.
A metal can 1 having a relatively thin body wall and having a circumferential joint 5tl- fitted with a through an adhesive layer 4 and bonded thereto is a pressure-resistant can (particularly for storing beer, carbonated drinks, etc.). For example, it has been proposed that it is suitable for an internal volume of about 1 to 10 liters. In this case, the upper can body 2 and the lower can body 3 are usually blanks with a corrosion-resistant coating (e.g., phenol-exylene coating, organosol, etc.) formed on the inner surface to prevent corrosion of the contents. Since it is formed by cutting, drawing, etc., the inner surface is protected by a coating film, but the end surfaces 3a, 1 (formed by cutting) of the inner open end 3a are made of metal. Therefore, in order to ensure corrosion resistance against the contents, as shown in FIG. 1, it is desirable to cover the inner peripheral surface 3ml near the end surface 3mK and the end surface 3al with the adhesive layer 4.
一方接層剤層４を形成する方法として、熱硬化型接着剤
やスラリー型接着剤のような液状接着剤の塗布、もしく
は粉体型接着剤の静電塗布等も考えられるが、内側の開
口端部３ａの外周面３ａ３に熱接着性プラスチックテー
プを、はみ出し部を残して熱接着後、はみ出し部を端面
３ａｌおよび内周面３ａ２に熱接着し、その後上部缶体
２の開口端部２ａを嵌合して熱接着する方法が、開口端
部２ａと３ａの間に、均一な厚さの気孔等の欠陥のない
接着剤層４が得られ易いという点で好ましい。On the other hand, as a method for forming the adhesive layer 4, it is possible to apply a liquid adhesive such as a thermosetting adhesive or a slurry adhesive, or electrostatically apply a powder adhesive. A thermoadhesive plastic tape is thermally bonded to the outer circumferential surface 3a3 of the end portion 3a, leaving a protruding portion, and then the protruding portion is thermally bonded to the end surface 3al and the inner circumferential surface 3a2, and then the open end 2a of the upper can body 2 is bonded. The method of fitting and thermally bonding is preferable in that it is easy to obtain an adhesive layer 4 with a uniform thickness and no defects such as pores between the open ends 2a and 3a.
ところで、この場合、はみ出し部を端面３ ａｌ、およ
び内周面３ａ２に熱接着する方法として、熱風ノエット
ヲはみ出し部に吹きつけ、はみ出し部を溶融又は軟化し
た状態で上記熱接着する方法が考えられるが、この方法
では端面３ａＨのコーナ都合が多い。またロール又はブ
ラシ等によシはみ出し部を内側に折シ返、、１、して上
記熱接着を行なう方法も考えられるが、この場合も、缶
体全加熱しながら折返して接層するため、前記のように
コーナ部のプラスチックチーブが薄くなったシ、もしく
は局部的に破断したり、あるいはしわが発生したり、又
空気が巻込まれたりして、満足な防食効果を得ることが
困難である。By the way, in this case, as a method of thermally bonding the protruding portion to the end surface 3 al and the inner circumferential surface 3a2, a method of blowing hot air onto the protruding portion and thermally bonding the protruding portion in a melted or softened state may be considered. In this method, there are many cases where the end face 3aH has a corner. Another possible method is to fold the protruding part inward using a roll or brush, etc., and perform the above thermal bonding.However, in this case as well, since the can body is fully heated while being folded back and bonded, As mentioned above, it is difficult to obtain a satisfactory corrosion protection effect because the plastic tubes at the corners become thin, break locally, or wrinkle, or air is trapped. .
本発明は以上に述べた技術上の間組点の解消を図ること
を目的とする。An object of the present invention is to solve the above-mentioned technical problems.
上記目的を達成するため、本発明はプラスチックチーブ
が外方に延出したはみ出し部を残して外周面を包囲して
熱接着された金属筒体の開口端部の端面および内周面に
、該はみ出し部を熱接着する方法であって、該はみ出し
部ｔ−ｉｔぼ半径方向内側に折曲けて、該はみ出し部の
基部ｔａ端面の全面に当接させ、次いで該開口端部内に
中子を挿入して、該はみ出し部を折返して、折返された
該はみ出し部を該内周面に該中子によシ抑圧し、該抑圧
状態において、該開口端部を該プラスチ、りの熱接着可
能温度以上に加熱して、該はみ出し部を該端面および内
周面に熱接着することｔ−特徴とする金属筒体の開口端
部にプラスチックチーブを熱接着する方法を提供するも
のである。In order to achieve the above object, the present invention provides a plastic tube that surrounds the outer circumferential surface and is thermally bonded to the end surface and inner circumferential surface of the open end of a metal cylinder, leaving a protrusion extending outward. This is a method of thermally bonding the protruding part, by bending the protruding part t-it inward in the radial direction, bringing it into contact with the entire surface of the base ta end face of the protruding part, and then inserting a core into the open end. The protruding portion is inserted, the protruding portion is folded back, and the folded protruding portion is pressed against the inner peripheral surface by the core, and in the suppressed state, the open end can be thermally bonded to the plastic and glue. The present invention provides a method for thermally bonding a plastic tube to an open end of a metal cylindrical body, characterized in that the protruding portion is thermally bonded to the end surface and the inner circumferential surface by heating above the temperature.
さらに本発明は、プラスチックチーブが外方に延出した
はみ出し部を残して外周面を包囲して熱接着された金属
筒体の開口端部の端面と内周面に、該はみ出し部含熱接
着するための装置であって、該装置は、該プラスチック
チーブが外周面に熱接着された該開口端部を遊挿可能な
第１の孔部、第１の孔部に連接して、幅が該開口端部の
厚さと該プラスチックチーブの厚さく１）の和に実質的
に等しい半径方向内側に延びる段差部、および該段差部
に連接する内径が該開・口端部の内径（ロ）以上である
第２の孔部を有するダイ、最大外径部の直径が（Ｄ−２
ｔ）以上であって、第２の孔部よシ挿通されて、該はみ
出し部を該開口端部の内周面に押圧下に接着可能な中子
、および上記接着した状態で該開口端部を加熱するだめ
の手段を備えることを特徴とする金属筒体の開口端部に
プラスチックチーブを熱接着する装置を提供するもので
ある。Furthermore, the present invention provides heat-containing adhesive bonding to the end face and inner circumferential surface of the open end of the metal cylinder, to which the plastic tube is thermally bonded by surrounding the outer peripheral surface with a protruding part extending outward. This device connects the open end portion of the plastic tube thermally bonded to the outer peripheral surface to a first hole portion into which the plastic tube can be loosely inserted, and the first hole portion has a width. a step portion extending inward in the radial direction that is substantially equal to the sum of the thickness of the opening end and the thickness 1) of the plastic tube; A die having a second hole having the above diameter, the diameter of the maximum outer diameter part is (D-2
t) a core which is inserted through the second hole and whose protruding part can be adhered to the inner circumferential surface of the open end under pressure, and the open end in the adhered state; The present invention provides an apparatus for thermally bonding a plastic tube to an open end of a metal cylinder, characterized in that the device is equipped with means for heating the tube.
以下実施例である図面を参照しながら、本発明について
説明する。The present invention will be described below with reference to the drawings which are examples.
第２図において、１０は金属筒体であり、ｔｏａは開口
端部である。本明細書においては、金属筒体とは、対向
する１対の開口端部を有する円筒体（側面縦目なしの、
もしくは溶接等による継目を有する）の他に、第１図に
示される下部缶体３のような有底のカッノ状筒体、又は
上部缶体２のように肩部２ｂおよびカール部２ｅｌを形
成された細目部２ｃを有する筒体等をも包含する。また
金属筒体を形成する金属も、錫めっき鋼板、ティンフリ
ースチール（電解クロム酸処理鋼板）、アルミニーラム
（合金）板、その他の任意の金属もしくは合金を含む。In FIG. 2, 10 is a metal cylinder, and toa is an open end. In this specification, a metal cylindrical body refers to a cylindrical body having a pair of opposing open ends (a cylindrical body without side vertical grains,
or a joint formed by welding or the like), a bottomed cup-like cylinder like the lower can 3 shown in FIG. 1, or a shoulder 2b and a curled part 2el like the upper can 2. It also includes a cylindrical body having a narrow part 2c. Further, the metal forming the metal cylinder includes tin-plated steel plate, tin-free steel (electrolytic chromic acid treated steel plate), aluminum laminate (alloy) plate, and other arbitrary metals or alloys.
第２図の金属筒体ｌＯの開口端部１０ｍは、第１図の下
部缶体３の開口端部３ａに対応するものであって、肩部
１０ｂに連接して軸線方向に延びる縮径部となっている
。なお、図示されないが、内面には防食塗膜（好ましく
は後記のプラスチックテープ１１との熱接着性に優れた
）が形成されている。外面も特に開口端部の外周面１０
ａ３には、必要に応じ、プラスチックテープ１１との熱
接着に優れたブライマ一層（図示されない）が形成され
ている。なお開口端部１０ｍの端面１ｏ ａｔは、通常
切断されたままであって金属が露出している。The open end 10m of the metal cylindrical body lO in FIG. 2 corresponds to the open end 3a of the lower can 3 in FIG. It becomes. Although not shown, an anticorrosive coating film (preferably excellent in thermal adhesion to plastic tape 11 described later) is formed on the inner surface. The outer surface is also particularly the outer circumferential surface 10 of the opening end.
A3 is provided with a single layer of brimer (not shown) which has excellent thermal adhesion to the plastic tape 11, if necessary. Note that the end face 1o at of the open end 10m is usually left cut, and the metal is exposed.
開口端部１０ａの外周面１０ａａ’ｔ”包囲して、全周
に沿いプラスチックテープ１１が熱接着されており、プ
ラスチックテープ１１の一部は、熱接着されず外方に延
出して、はみ出し部１１＆となっている。プラスチック
テープｌｌ′ｊｋ形成するプラスチックとしては、変性
線状ポリエステル、ナイロン１１又はナイロン１２、ま
たは酸変性ポリオレフィン等の比較的融点又は軟化点が
低く、かつ極性基を有する熱可塑性プラスチックが例示
される。A plastic tape 11 is thermally bonded along the entire circumference to surround the outer circumferential surface 10aa't'' of the open end 10a, and a portion of the plastic tape 11 is not thermally bonded and extends outward to form a protruding portion. 11&.The plastic used to form the plastic tape is a thermoplastic having a relatively low melting point or softening point and a polar group, such as modified linear polyester, nylon 11 or nylon 12, or acid-modified polyolefin. Plastic is an example.
外周面１０ａ３を包囲するプラスチックテープ１１の熱
接着は、例えば本発明者等が先に提案したように、接着
ロールの局面に真空吸着によって保持された外周面１０
ａｓ（ｐ周長と実質的に等しい長さのプラスチックテー
プ片を、熱接着可能温度に加熱され、かつ内部をマンド
レルで支持された開口端部１０ａｋ、接着ロールと同一
の周速度で回転しながら、外周面１０ａ３上に押圧下に
移行させることによって行なわれる。Thermal adhesion of the plastic tape 11 surrounding the outer circumferential surface 10a3 is performed by, for example, as previously proposed by the present inventors, the outer circumferential surface 10 is held on the surface of an adhesive roll by vacuum suction.
As(p) A piece of plastic tape having a length substantially equal to the circumference is heated to a temperature that allows thermal bonding, and the open end 10ak is internally supported by a mandrel, while rotating at the same circumferential speed as the adhesive roll. , by moving it onto the outer circumferential surface 10a3 under pressure.
開口端部１０ａは、第３図に示すダイ１２に挿入するこ
とによって、はみ出し部１１ｍの基部１１ ａｌが、端
面１０ａ１の全面に当接するように１はぼ半径方向内側
に折曲げられる。ダイ１２は、開口端部挿入用孔部１３
（以下開口端部側孔部とよぶ）、開口端部側孔部１３に
連接して半径方向内側圧延びる段差部１４、および段差
部１４に連接する中子１６（第４図参照）挿入用孔部１
５（以下中子側孔部とよぶ）を有している・開口端部側
孔部１３は、截頭円錐形案内面１３ａと短円筒形案内面
１３ｂを有しており、短円筒形案内面１３ｂの内径は、
開口端部１０ｍの外径をＤＩ、プラスチックテープ１１
の厚さをｔとすると、（Ｄｓ＋２ｔ）よシ僅かに大きく
、すなわちプラスチックテープ１１が外周面１０ａ３に
熱接着された開口端部１０ｍが遊挿可能の程度に定めら
れている。By inserting the open end 10a into the die 12 shown in FIG. 3, the opening end 10a is bent approximately radially inward so that the base 11al of the protruding portion 11m comes into contact with the entire surface of the end surface 10a1. The die 12 has an open end insertion hole 13
(hereinafter referred to as the open end side hole), a stepped portion 14 connected to the open end side hole 13 and rolled radially inward, and a core 16 (see Fig. 4) connected to the stepped portion 14 for insertion. Hole 1
5 (hereinafter referred to as the core side hole).The open end side hole 13 has a truncated conical guide surface 13a and a short cylindrical guide surface 13b. The inner diameter of the surface 13b is
DI the outer diameter of the opening end 10m, plastic tape 11
Letting the thickness of t be (Ds+2t), it is set to be slightly larger than (Ds+2t), that is, the opening end 10m where the plastic tape 11 is thermally bonded to the outer peripheral surface 10a3 can be loosely inserted.
なお、短円筒形案内面１３ｂの軸線方向長さは、開口端
部１０ａの夫よシも短かい。短円筒形案内面１３ｂを設
けることなく、截頭円錐形案内面１３ａのみによって案
内面を形成してもよい。しかし短円筒形案内面１３ｂを
設けることは、折り曲げ性のあまシ良くないグラスチッ
クチー７’ｌｌを確実に折シ曲げたシ、あるいは外周面
１０ａ３に熱接着されたプラスチックテープ１１にオー
パラッゾ部が生じた場合、その段差を潰して全周に沿い
均一な厚さを確保したり、もし、くけ後記の中子１６に
よる、折返されたはみ出し部１１ｍの開口端部内周面１
０ａ２への・挟着による抑圧のさい、開口端部１０ａの
拡開によω変形を防止できる点で有効である。The length of the short cylindrical guide surface 13b in the axial direction is also shorter than that of the opening end 10a. The guide surface may be formed only by the truncated conical guide surface 13a without providing the short cylindrical guide surface 13b. However, the provision of the short cylindrical guide surface 13b requires that the plastic cheese 7'll, which has poor bendability, be reliably bent, or that the overparazzo portion is attached to the plastic tape 11 that is thermally bonded to the outer peripheral surface 10a3. If this occurs, the step may be crushed to ensure a uniform thickness along the entire circumference, or if the inner peripheral surface 1 of the open end of the folded protruding portion 11m is removed by the core 16 described later.
This is effective in that it is possible to prevent ω deformation by expanding the open end 10a during the suppression by clamping to 0a2.
段差部１４０半径方向幅は、開口端部１０＆の厚さとプ
ラスチックチーｆｌｌの厚さく１）の和に実質的に等し
く定められている。従って開口端部１０ａ’ｉ開ロ端部
側孔部１３からダイ１２内に挿入すると、段差部１４に
当って、はみ出し部１１ａはほぼ半径方向内側に折曲げ
られ、はみ出し部１１ａの基部１１ ａｌは、段差部１
４と端面１０ａ１の間に挟着される。The radial width of the stepped portion 140 is determined to be substantially equal to the sum of the thickness of the open end 10& and the thickness 1) of the plastic tee. Therefore, when the open end 10a'i is inserted into the die 12 through the open end side hole 13, the protruding part 11a hits the step part 14 and is bent almost radially inward, and the base 11 al of the protruding part 11a is step part 1
4 and the end surface 10a1.
中子側孔部１５は、段差部１４に連接する中子ｌ６を案
内するだめの短円筒形案内面１５ｍおよび截頭円錐形案
内面１５ｂｔ−有している。短円筒形案内面１５ｍの内
径は、開口端部１０ｍの内径りに実質的に等しい。The core side hole portion 15 has a short cylindrical guide surface 15m and a frusto-conical guide surface 15bt for guiding the core l6 connected to the stepped portion 14. The inner diameter of the short cylindrical guide surface 15m is substantially equal to the inner diameter of the open end 10m.
ダイ１２には、短円筒形案内面１３ｂ近傍に接近して、
かつこれを包囲して、高周波誘導加熱コイル１７（以下
加熱コイルとよぶ）が内蔵されており、加熱コイル１７
によって開口端部１０ａ’ｔ、プラスチックテープ１１
を形成するプラスチックの熱接着可能温度以上（すなわ
ち融点もしくは軟化点以上）の温度まで加熱できるよう
になっている。そのためダイ１２は、誘導加熱されるこ
となく、かつ強度と耐熱性のある材料、例えばセラミッ
クス、ベークライト、弗素樹脂等によって形成されてい
る。The die 12 is approached near the short cylindrical guide surface 13b,
A high-frequency induction heating coil 17 (hereinafter referred to as a heating coil) is built in surrounding the heating coil 17.
Open end 10a't, plastic tape 11
It is possible to heat the plastic to a temperature higher than the temperature at which it can be thermally bonded (i.e., higher than the melting point or softening point) of the plastic forming the material. Therefore, the die 12 is not subjected to induction heating and is made of a material having strength and heat resistance, such as ceramics, Bakelite, fluororesin, or the like.
中子１６は、第４図に示すように、剛性の芯部１６ａと
耐勢性弾性ゴムよシなるスリーブ１６ｂを備えている。As shown in FIG. 4, the core 16 includes a rigid core 16a and a sleeve 16b made of force-resistant elastic rubber.
スリーブ１６ｂは、先端に形成された先細のチーｉ４部
１６ ｂｔと、円筒部１６ｂ２よシなっており、チー・
平部１６ｂ１のため中子側孔部１５内への押入が容易と
なっている。円筒部１６ ｂ２の外径は、開口端部１０
ａの内径い）よりプラスチックテープの厚さく１）の２
倍を差引いた値以上、すなわち（Ｄ−２ｔ）以上に定め
られていて、第５図に示すように、中子１６を中子側孔
部１５からダイ１２内に押入して、スリーブ１６ｂによ
って、はぼ半径方向内側に延びるはみ出し部１１ａを折
り返して、折シ返されたはみ出し部１１ａを、開口端部
の内周面１０ ａ２とスリーブ１６ｂの間に挟着して、
弾性的に抑圧できるようになっている。The sleeve 16b has a tapered tip I4 part 16bt formed at the tip and a cylindrical part 16b2.
The flat portion 16b1 makes it easy to push into the core side hole 15. The outer diameter of the cylindrical portion 16 b2 is the same as that of the open end 10.
The thickness of the plastic tape is greater than the inner diameter of a) 1) 2
As shown in FIG. 5, the core 16 is pushed into the die 12 through the core side hole 15, and the sleeve 16b , the protruding part 11a extending inward in the radial direction is folded back, and the folded protruding part 11a is sandwiched between the inner circumferential surface 10a2 of the open end and the sleeve 16b,
It can be suppressed elastically.
このさい外局面１０ ａ３に接着していたプラスチック
テープ１１の部分は、開口端部側孔部１３の短円筒形案
内面１３ｂによって支承される。At this time, the portion of the plastic tape 11 that has been adhered to the outer surface 10a3 is supported by the short cylindrical guide surface 13b of the opening end side hole 13.
スリーブ１６ｂｆｆ”形成する弾性ゴムとしては、耐熱
性、耐摩耗性および溶融又は軟化後固化したプラスチッ
クテープ１１との離脱性に優れたもの、例えば弗素ゴム
やシリコンゴム等が望ましい。またそのゴム硬質（ショ
アＡ）は３０〜９０度が好ましく、さらにβ０〜８０度
がよシ好ましい。As the elastic rubber used to form the sleeve 16bff, it is desirable to use a material with excellent heat resistance, abrasion resistance, and ease of detachment from the plastic tape 11 that has solidified after melting or softening, such as fluororubber or silicone rubber. Shore A) is preferably 30 to 90 degrees, and even more preferably β0 to 80 degrees.
３０度より低いと、軟かすぎて十分な弾性押圧力を加え
ることが困難であり、９０度より高いと、硬すぎて折°
り返されたはみ出し部１１ａ内への押入が困難となるか
らである。If it is lower than 30 degrees, it will be too soft and it will be difficult to apply sufficient elastic pressing force, and if it is higher than 90 degrees, it will be too hard and will not bend.
This is because it becomes difficult to push into the turned-over protruding portion 11a.
第５図に示すように、中子１６の押入が終った後、加熱
コイル１７に通電すると、開口端部１０ｍは当該ノラス
チ、りの熱接着可能温度以上に誘導加熱されて、はみ出
し部ｌｉｍの基部１１’ａｌは端面１０ ａｌに、残り
のはみ出し部１１ａの部分は内周面１０ａ２に、何れも
抑圧下に熱接着される。As shown in FIG. 5, when the heating coil 17 is energized after the core 16 is pushed in, the opening end 10m is heated by induction to a temperature higher than the temperature at which the adhesive can be thermally bonded. The base portion 11'al is thermally bonded to the end surface 10al, and the remaining protruding portion 11a is thermally bonded to the inner circumferential surface 10a2 under pressure.
加熱温度および押圧力は、熱接着中にプラスチックテー
プ１１の厚みが、実質的に変動しない程度に制御される
。熱接着後、加熱コイル１７を消勢し、シラスチックチ
ー７’ｌｌが冷却固化した後、中子１６と金属筒体１０
をダイ１２から抜き出す。The heating temperature and pressing force are controlled to such an extent that the thickness of the plastic tape 11 does not substantially change during thermal bonding. After thermal bonding, the heating coil 17 is deenergized, and after the Silastic Chee 7'll is cooled and solidified, the core 16 and the metal cylinder 10 are bonded together.
is pulled out from the die 12.
以上のように適度の弾性的押圧力の下に熱接着力が行な
われるので、熱接着されたプラスチックテープ１１に、
皺や気泡を生ずることなく、また端面１０ Ｊのコーナ
部において薄肉になったり、切断したシするおそれがな
い。As described above, the thermal bonding force is applied under a moderate elastic pressing force, so that the thermally bonded plastic tape 11 has
There are no wrinkles or bubbles, and there is no risk of thinning or cutting at the corners of the end face 10J.
第６図、第７図は、以上のダイ１２および中子１６を用
いて、金属筒体１０（第１図の下部缶体３に対応する）
の開口端部１０ａの外周面に熱接着されたプラスチック
テープのはみ出し部１１． ａを、開口端部１０ｍの端
面および内周面に連続的に熱接着する装置の例を示す１
２０ａ、２０ｂは回転板であって、サイドフレーム２１
に軸架される水平回転軸２２を介して、モータ２３、減
速機２４によシ矢印方向（第６図）に一定速度で回転さ
れる。２５は金属筒体１．０の底部押込体であって、左
側回転板２０ａの円周方向に沿い等間隔に４個が、水平
方向に摺動可能に軸支されている。２６は金属筒体押込
用の固定カム板であって、カムフォロアー２７′ｆ：介
して、底部押込体２５が、頂部に位置する金属筒部１０
の装入ステー７ョンＡにあるときは後退しておシ、装入
ステーションＡから矢印方向に移動すると直ちに前進し
て、開口端部１０ａをダイ１２（回転板２０ａ 、２０
ｂに固着された円筒体２８に、底部押込体２５に対向し
て４個固設されている）の−目端部側孔部１３に押込み
、底部の送出ステージョンＣに達する直前に原位置に後
退する（第７図は理解し易いように押込まれた（すなわ
ち挿入された）状態を示しているが）ように構成されて
いる。FIGS. 6 and 7 show a metal cylindrical body 10 (corresponding to the lower can body 3 in FIG. 1) using the die 12 and core 16 described above.
The protruding portion 11 of the plastic tape is thermally bonded to the outer peripheral surface of the open end 10a. 20a and 20b are rotary plates, and the side frame 21
It is rotated at a constant speed in the direction of the arrow (FIG. 6) by a motor 23 and a reduction gear 24 via a horizontal rotating shaft 22 mounted on the shaft. Reference numeral 25 denotes bottom pushing bodies of the metal cylindrical body 1.0, and four pieces are pivotally supported at equal intervals along the circumferential direction of the left rotary plate 20a so as to be slidable in the horizontal direction. Reference numeral 26 denotes a fixed cam plate for pushing the metal cylindrical body, and a cam follower 27'f: through which the bottom pushing body 25 connects to the metal cylindrical part 10 located at the top.
When it is at charging station A, it moves backward, and when it moves from charging station A in the direction of the arrow, it immediately moves forward and inserts the open end 10a into the die 12 (rotary plates 20a, 20).
(4 pieces are fixedly installed in the cylindrical body 28 fixed to the cylindrical body 28, facing the bottom pushing body 25). (FIG. 7 shows the pushed-in (i.e., inserted) state for ease of understanding).
中子１３は、底部押込体２５に対向する位置に４個が、
右側回転板２０ｂに水平方向に摺動可能に軸支されてい
る。そして中子１３は、固定カム板２９とカムフォロア
ー３０によって、金属筒体１０が金属筒体側孔部１３に
押込まれ、はみ出し部１１ａの基部器」１が、段差部１
４に当接すると、直ちに左側に前進して、中子側孔部１
５を挿通して、はみ出し部を折シ返し、折シ返されたは
み出し部１１ａを開口端部の内周面１０ ｍＨに押圧す
るようになっている。さらに送出ステージ１ンＣに達す
る直前に、底部押込体２５が後退する前に後退するよう
になっている。なお３１は、円筒体２８に固設されたフ
レームに軸支された金属筒体ｉｏの支承ロールであシ、
３２は金属筒体１００案内用ロツドである。Four cores 13 are located at positions facing the bottom pushing body 25.
It is pivotally supported to be slidable in the horizontal direction on the right rotating plate 20b. Then, the metal cylinder 10 of the core 13 is pushed into the metal cylinder side hole 13 by the fixed cam plate 29 and the cam follower 30, and the protruding part 11a of the base 1 is pushed into the stepped part 1.
4, it immediately advances to the left and enters the core side hole 1.
5 is inserted, the protruding part is folded back, and the folded-back protruding part 11a is pressed against the inner peripheral surface 10 mH of the open end. Further, just before reaching the delivery stage 1C, the bottom pusher 25 is moved back. Note that 31 is a support roll of the metal cylinder io which is pivotally supported by a frame fixed to the cylinder 28;
32 is a rod for guiding the metal cylinder 100.
ダイ１２に内蔵された加熱コイル１７は、右側回転板２
０ｂの外周部のダイ１２に対応する位置に固設された２
次コイル保持体３３内に設けられた２次コイル３４．２
次コイル３４に対向するように、送入ステーションＡと
送出ステーションＣの間の加熱ステーションＢに固設さ
れた１次コイル保持体３５に内蔵された１次コイル（図
示されない；１次コイルと２次コイル３４によって１種
の回転トランスが形成される）、およびフィーダ３６を
介して、高周波４発振装置３７に接続する。The heating coil 17 built into the die 12 is connected to the right rotating plate 2.
2 fixed at a position corresponding to the die 12 on the outer periphery of 0b.
Secondary coil 34.2 provided within the secondary coil holder 33
A primary coil (not shown; the primary coil and the A type of rotating transformer is formed by the secondary coil 34), and is connected to a high frequency 4 oscillation device 37 via a feeder 36.
従って１次コイルと２次コイル３４が対向する間のみ、
すなわち２次コイル保持体３３が、１次コイル保持体３
５に対向して回転する、加熱ステーションＢ通過時間の
み加熱コイル１７に通電される。Therefore, only while the primary coil and the secondary coil 34 are facing each other,
That is, the secondary coil holder 33 is the primary coil holder 3.
The heating coil 17 is energized only during the passage time of the heating station B, which rotates opposite the heating coil 17.
以上の装置において、支承ロール３１、ダイ１２、底部
押込体２５、中子１６．２次コイル３４等よりなる金属
筒体１０の搬送、処理部が送入ステーションＡに達する
と、送入シュート３８よシ、第７図に示されるように、
金属筒体ｌＯが支承ロール３１上に落下する。そして直
ちに底部押込体２５と中子１６が前進し、２次コイル保
持体３３が１次コイル保持体３５の上端部３５ｍに達す
るまでに、はみ出し部１１ｍの折シ返しと、中子１６に
よる折り返されたはみ出し部１１１の内周面１０１への
押圧が行なわれる。２次コイル保持体３３が、１次コイ
ル保持体３５に対向して回転している間に、開口端部１
０ｍは誘導加熱されて、当該グラスチックの熱接着可能
温度以上の温度になって、はみ出し部１１ｍの端面１０
ｍｌおよび内周面ｉ ｏ ａｌへの熱接着が行なわれ
る。２次コイル保持体３３が、１次コイル保持体３５の
下端部３５ｂに対向する位置を通過すると、加熱コイル
１７が消勢し、送出ステーションＣに達する前に、ゾラ
スチ、クフイルム１１は冷却、同化する。直ちに中子１
６と底部押込体２５が後退して、金属筒体１０は図示さ
れない排出装置によって、送出ステーションＣからテー
ブル３９上に沿って排出される。In the above apparatus, when the conveying and processing section of the metal cylinder 10 consisting of the support roll 31, the die 12, the bottom pusher 25, the core 16, the secondary coil 34, etc. reaches the feeding station A, the feeding chute 38 Okay, as shown in Figure 7,
The metal cylinder lO falls onto the support roll 31. Immediately, the bottom pushing body 25 and the core 16 move forward, and by the time the secondary coil holder 33 reaches the upper end 35m of the primary coil holder 35, the protruding portion 11m is folded back and the core 16 is folded back. The inner circumferential surface 101 of the protruding portion 111 is pressed. While the secondary coil holder 33 is rotating facing the primary coil holder 35, the open end 1
0m is heated by induction to reach a temperature higher than the temperature at which the plastic can be thermally bonded, and the end surface 10 of the protruding portion 11m is heated.
ml and the inner circumferential surface io al. When the secondary coil holder 33 passes the position opposite the lower end 35b of the primary coil holder 35, the heating coil 17 is deenergized, and before reaching the delivery station C, the Zolasch and Kufirum 11 are cooled and assimilated. do. Immediately remove the core 1
6 and the bottom pusher 25 are retracted, and the metal cylinder 10 is discharged from the delivery station C along the table 39 by a discharge device (not shown).
本発明は以上の実施例によって制約されるものでなく、
例えば開口端部１０ｍの加熱は、ダイ１２を取外し、中
子１６は開口端部内に押入されたままの状態において、
熱風、赤外線、又Ｉ／′ｉａ火等によって行なってもよ
い。さらに金属筒体１゜を固定し、ダイ１２および中子
１６を移動させてもよい。The present invention is not limited to the above embodiments,
For example, heating the opening end 10m is performed by removing the die 12 and leaving the core 16 pushed into the opening end.
It may be carried out using hot air, infrared rays, or I/'ia fire. Furthermore, the metal cylinder 1° may be fixed and the die 12 and core 16 may be moved.
本発明によれば、グラスチックテーノのはみ出し部が、
皺や気泡を生ずることなく、また開口端部の端面のコー
ナ部において薄肉部や切断を生ずることなく、金属筒体
、の開口端部の端面および内周面の全周にわたって、確
実に熱接着されるという効果を奏することができる。According to the present invention, the protruding portion of the glass
Reliably heat-bonds the end face of the open end and the entire circumference of the inner circumference of the metal cylindrical body without creating wrinkles or bubbles, and without creating thinner parts or cuts at the corners of the end face of the open end. It is possible to achieve the effect that
以下具体例について説明する。A specific example will be explained below.
具体例
予めオルガノゾル系塗膜を両面に形成した厚さ０．２３
龍の）ルミニウム合金板（３００４材、Ｈ２Ｃ）を、常
法により打抜きおよび絞り加工して、胴部外径８４．１
１ｍのカッｆ秋金属筒体１０を作製した後、動径加工に
よシ開ロ端部１０ｍを形成した（開口端部の外径＝８３
．６５龍、長さ＝ ５ ｉｎ ）。Specific example: Thickness 0.23 with organosol coating film formed on both sides in advance
A aluminum alloy plate (3004 material, H2C) was punched and drawn using a conventional method, and the outer diameter of the body was 84.1.
After producing a metal cylindrical body 10 with a diameter of 1 m, an open bottom end of 10 m was formed by radial machining (outer diameter of the open end = 83 mm).
．． 65 dragons, length = 5 in).
次いで、厚さ８０μｍ、巾６ ｍｕの変性線状ポリエス
テルテーゾ（軟化点１７８℃）を２６７ ｍｍの長さに
切断しそ、該テープ片を高周波誘導加熱された開口端部
の外周部に、幅１．５冨菖はみ出し部１１ｍを残して熱
接着した。Next, a modified linear polyester Teso (softening point 178°C) with a thickness of 80 μm and a width of 6 μm was cut into a length of 267 mm, and the tape piece was placed around the outer periphery of the open end heated by high frequency induction. 1.5 Fuji irises were thermally bonded, leaving an 11 m protruding portion.
次に、開口端部側孔部１３の截頭円錐形案内面１３ｍの
テーパ角度ｌＯ度、短円筒形案内面１３ｂの内径８４．
ＯＯｊ１ｍｓ長さ２關、段差部１４の幅０３０龍の第
３図の形状のベークライトよシなるダイ１２、およびス
リーブ１６ｂの円筒部１６ ｂｓの外径が８３．６０１
１１１％厚さ１０１１１であって、スリーｆ１６ ｂが
ショアＡ硬度８０度のシリコンデムよりなる第４図の形
状の中子１６を用いて、開口端部の端面１０ａ１と内周
面１０ｍ１に、はみ出し部１１ｍを押圧した状態で、加
熱コイル１７に通電して、開口端部１０ａを２００℃に
加熱して、はみ出し部１１ａ’ｉ端面１０ ａｔと内周
面１０ ａｍに熱接着した。冷却同化後、開口端１１５
１０ｍを抜き出した。Next, the taper angle of the frusto-conical guide surface 13m of the opening end side hole 13 is 10 degrees, and the inner diameter of the short cylindrical guide surface 13b is 84 degrees.
The die 12 is made of Bakelite and has a shape as shown in FIG.
Using a core 16 having a shape as shown in FIG. 4 and having a thickness of 111% and a silicon dem with a shore A hardness of 80 degrees, a protruding portion is formed on the end surface 10a1 of the opening end and the inner circumferential surface 10m1. 11m was pressed, the heating coil 17 was energized to heat the open end 10a to 200° C., and the protruding portion 11a'i was thermally bonded to the end surface 10at and the inner peripheral surface 10am. After cooling and assimilation, the open end 115
I pulled out 10m.
上記熱接着され開口端部１０ｍを肉眼観察したところ、
全周にわたり確実にプラスチックテープ１１によって被
覆されておシ、エアの巻込みや皺の発生は皆、無であっ
た。また断面を顕微鏡で観基したが、プラスチックテー
プ１１は、外周面１０ａ３、端面１０ｍ１（：Ｉ−す部
を含む）、内周面１０ａ２の何れの部分をも、実質的に
均一な厚さで被覆していた。Visual observation of the thermally bonded open end 10m revealed that
The entire circumference was reliably covered with the plastic tape 11, and there was no air entrainment or wrinkles. In addition, the cross section was observed under a microscope, and it was found that the plastic tape 11 had a substantially uniform thickness on any part of the outer peripheral surface 10a3, the end surface 10m1 (including the I-shaped part), and the inner peripheral surface 10a2. It was covered.
第１図は本発明の方法でプラスチックテープが熱接着さ
れた金属筒体の例が下部缶体として組立てられた金属容
器の例の縦断面図、第２図は本発明の方法を実施するた
め開口端部外局面にプラスチックテープが熱接着された
金属筒体の要部縦断面図、第３図は第２図に示される金
属筒体の開口端部を、本発明の装置の１実施例のダイに
挿入した状態を示す縦断面図、第４図は本発明の装置の
１実施例の中子の縦断面図、第５図は第３図の金属筒体
の開口端部内に第４図の中子を押入した状態を示す縦断
面図、第６図は本発明の装置を用いた連続灼熱接層装置
の例の正面図、第７図は第６図の■−■線に沿う縦断面
図である。
１０・・・金属筒体、１０ｍ・・・開口端部、１０ａ１
・・・端面、１０ａ２・・・内周面、１ｏａ３・・・外
周面、１１・・・プラスチックテープ、１１ａ・・・は
み出し部、１１ ａｔ・・・基部、１２・・・ダイ、１
３・・・開口端部挿入用孔部（第１の孔部）、１４・・
・段差部、１５・・・中子挿入用孔部（第２の孔部）、
１６・・・中子、１６ｂ２・・・円筒部（最大外径部）
、１７・・・高周波誘導加熱コイル。
特許出願人 岸 本 昭
？、１図
２ｒ
第２図
０
第６図
ｒ■
ｊ−□
第７図FIG. 1 is a longitudinal sectional view of an example of a metal container in which a metal cylinder to which a plastic tape is thermally bonded by the method of the present invention is assembled as a lower can body, and FIG. FIG. 3 is a vertical cross-sectional view of a main part of a metal cylinder body with a plastic tape thermally bonded to the outer surface of the open end. FIG. 3 shows the open end of the metal cylinder body shown in FIG. FIG. 4 is a vertical cross-sectional view of the core of one embodiment of the device of the present invention, and FIG. Fig. 6 is a front view of an example of a continuous scorching welding device using the device of the present invention, and Fig. 7 is taken along the line ■-■ in Fig. 6. FIG. 10...Metal cylindrical body, 10m...Open end, 10a1
...End face, 10a2...Inner peripheral surface, 1oa3...Outer peripheral surface, 11...Plastic tape, 11a...Protrusion part, 11 at...Base, 12...Die, 1
3... Open end insertion hole (first hole), 14...
・Step part, 15... Core insertion hole (second hole),
16... Core, 16b2... Cylindrical part (maximum outer diameter part)
, 17...High frequency induction heating coil. Patent applicant Akira Kishimoto? , 1 Figure 2r Figure 2 0 Figure 6 r ■ j−□ Figure 7
Claims (2)
し部を残して外周面を包囲して熱接着された金属筒体の
開口端部の端面および内周面に、該はみ出し部を熱接着
する方法であって、該はみ出し部をほぼ半径方向内側に
折曲けて、該はみ出し部の基部を該端面の全面に当接さ
せ、次いで該開口端部内に中子を挿入して、該はみ出し
部を折返して、折返された該はみ出し部を該内周面に該
中子により抑圧し、該抑圧状態において、該開口端部を
該プラスチックの熱接着可能温度以上に加熱して、該は
み出し部を該端面および内周面に熱接着することを特徴
とする金属筒体の開口端部にプラスチックテープを熱接
着する方法。(1) A method of thermally bonding the protruding portion to the end face and inner circumferential surface of the open end of a metal cylinder whose outer circumferential surface is thermally bonded with the plastic tape leaving the protruding portion extending outward. The protruding portion is bent approximately radially inward, the base of the protruding portion is brought into contact with the entire surface of the end face, and then a core is inserted into the open end to open the protruding portion. It is folded back, and the folded protruding portion is pressed against the inner peripheral surface by the core, and in the suppressed state, the open end is heated to a temperature higher than the temperature at which the plastic can be thermally bonded, and the protruding portion is pressed against the inner peripheral surface. A method for thermally bonding a plastic tape to an open end of a metal cylinder, the method comprising thermally bonding a plastic tape to an end surface and an inner peripheral surface.
を残して外周面を包囲して熱接着された金属筒体の開口
端部の端面と内周面に、該はみ出し部を熱接着するだめ
の装置であって、該装置は、該プラスチックテープが外
周面に熱接着された該開口端部を遊挿可能な第１の孔部
、第１の孔部に連接して、幅が該開口端部の厚さと該プ
ラスチックテープの厚さく１）の和に実質的に等しい半
径方向内側に延びる段差部、および該段差部に連接する
内径が該開口端部の内径の）以上である第２の孔部を有
するグイ、最大外径部の直径が（Ｄ−２１）以上であっ
て、第２の孔部よシ挿通されて、該はみ出し部を該開口
端部つ内周面に押圧下に挟着可能な中子、および上記挟
着した状態で該開口端部を加熱するだめの手段を備える
ことを特徴とする金属筒体の開口端部にプラスチックテ
ープを熱接着する装置。(2) The plastic tape is thermally bonded to the end surface of the open end and the inner circumferential surface of the metal cylindrical body, which is thermally bonded by surrounding the outer circumferential surface of the plastic tape, leaving an outwardly extending protruding portion. The device includes a first hole in which the open end portion of which the plastic tape is thermally bonded to the outer circumferential surface is loosely inserted; a step portion extending radially inwardly that is substantially equal to the sum of the thickness of the end portion and the thickness of the plastic tape; A goo having a hole with a maximum outer diameter of (D-21) or more, is inserted through the second hole, and the protruding part is pressed against the inner peripheral surface of the open end. 1. An apparatus for thermally bonding a plastic tape to an open end of a metal cylindrical body, comprising: a core that can be clamped between the cores; and means for heating the open end in the clamped state.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4252182A JPS58160114A (en) | 1982-03-19 | 1982-03-19 | Heat bonding of plastic tape and its device |
| KR1019830000907A KR890002489B1 (en) | 1982-03-08 | 1983-03-07 | Method and apparatus for manufacturing metal can |
| AU13307/83A AU1330783A (en) | 1982-03-08 | 1983-03-08 | Method and apparatus for manufacturing metal can |
| US06/552,057 US4536243A (en) | 1982-03-08 | 1983-03-08 | Method and apparatus for making a metal can |
| EP83900808A EP0103027B1 (en) | 1982-03-08 | 1983-03-08 | Method and apparatus for manufacturing metal can |
| PCT/JP1983/000072 WO1983003066A1 (en) | 1982-03-08 | 1983-03-08 | Method and apparatus for manufacturing metal can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4252182A JPS58160114A (en) | 1982-03-19 | 1982-03-19 | Heat bonding of plastic tape and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58160114A true JPS58160114A (en) | 1983-09-22 |
| JPS6157181B2 JPS6157181B2 (en) | 1986-12-05 |
Family
ID=12638380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4252182A Granted JPS58160114A (en) | 1982-03-08 | 1982-03-19 | Heat bonding of plastic tape and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58160114A (en) |
-
1982
- 1982-03-19 JP JP4252182A patent/JPS58160114A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6157181B2 (en) | 1986-12-05 |
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