CN1008259B - 制造罐头壳体的金属薄板坯料 - Google Patents
制造罐头壳体的金属薄板坯料Info
- Publication number
- CN1008259B CN1008259B CN86106953A CN86106953A CN1008259B CN 1008259 B CN1008259 B CN 1008259B CN 86106953 A CN86106953 A CN 86106953A CN 86106953 A CN86106953 A CN 86106953A CN 1008259 B CN1008259 B CN 1008259B
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- Prior art keywords
- tongue piece
- sheet metal
- blank
- tear band
- line
- Prior art date
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- 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
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
- B21D51/386—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs on the side-wall of containers
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/40—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to contain liquids
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
- B65D5/061—Rectangular containers having a body with gusset-flaps folded inwardly beneath the closure flaps
- B65D5/062—Rectangular containers having a body with gusset-flaps folded inwardly beneath the closure flaps with supplemental means facilitating the opening, e.g. tear lines, tear tabs
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
- B65D5/548—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank to U-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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
- B65D5/548—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank to U-shape
- B65D5/5485—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank to U-shape the container being provided with an internal frame or the like for maintaining the lid in the closed position by friction
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
- B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
- B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
金属薄片坯件包括一根撕开条,延伸在设计好的相应裂纹或划痕线之间,在撕开条的终端部有横向划痕,位于紧靠相应坯件的边缘处,横向划痕延伸于预先划线设计的裂纹之间,裂纹线一直延伸至增宽的舌部内。因而,当薄片边缘焊接在一起时形成一打开罐头的起始部,并使起始部通过焊缝撕开罐头时不发生任何困难。
Description
本发明一般地和生产金属罐头有关,特别是有关于用薄片金属板坯件生产金属薄片罐头的罐头壳。这种金属壳可用侧向延压或搭接焊缝制作,金属壳上有一在两条基本平行的预划痕线之间环绕圆周方向延伸并有一个越过焊缝延伸的自由舌片状的起始端的撕开条。
上述类型金属薄片罐头制作中的一个问题是如何安置撕开条,而且尽管有侧焊缝,仍可用开罐钥匙简便安全地打开罐头。
US-3,838,787公开了一种带侧焊缝的罐体,这种结构被称为“蝶形焊接”或称“蝶形焊缝”,即焊缝基本上位于金属薄板坯料的搭接部分的中部,因此金属薄片有自由边缘区域存在,即该区域没有焊接到相邻的薄板上。所说的结构在两自由边缘区域开有缺口A和B,以引导撕开条从每一缺口的根部开始撕开,这可能使撕开条横越焊缝并使其沿痕线打开罐头,但是不能防止撕开条的过早断裂。
因此本发明的总的目的是提供一个金属薄片坯件,包括一个撕开条,可恰当满意地撕开而不影响焊接侧缝的质量。在紧靠罐头侧接缝处有一个舌片。其特点是其宽度超过随后形成的撕开条的宽度,而预先划好的裂纹或划痕分别延伸进入舌部。
为此按本发明做的一种金属薄板罐头,其壳体在相对的自由边缘处具有搭接端,所说的搭接端限定了一搭接部分,在该搭接部分处,所说的搭接端由一条连结的焊缝连接,该焊缝在两边缘的整个长度上
延伸,搭接端的外部一端具有一舌片,所说的舌片从自由边缘向外伸出,一撕开条从另一端延伸至舌片上,被一对隔开的可破裂的痕线所限定,其特征在于:撕开条在外部一端的自由边缘上的舌片宽度大于两划痕线之间的宽度,其中舌片受外拉力时壳体最初的破裂处发生在舌片相对侧边缘与焊缝处的痕线之间,以后在撕拉撕开条过程中不过早断裂。
当用侧向延压机或搭接法在高度匀一的焊接材料上加工焊缝来生产薄板金属壳体时,这种金属薄片坯件的设计可允许在远离舌部的一般部位进行无瑕焊接。而舌片或撕开条部分相应地采用冷焊技术,因为这个部位接触面积增大,传递阻力增大。冷焊成形法使罐头的打开不成问题。
为了密封焊接,在靠近横向划痕处必须应用高焊压力,这又使撕裂区形成非常均匀的材料,由于形成起始端开口部的横向划痕以及这种极均匀的可以毫无困难地被撕开的焊缝的存在,也再次保证经过焊缝后的裂缝沿着设计的限定撕下条的相应的裂纹或划痕线撕开。
由于采用这种坯件,所以可能生产各种用途的密封焊接罐头,并保证安全开罐。
在参考下列给出详细描述的附图后,将比以上陈述更好地理解和掌握本发明。其描述可参照下面的附图。
图1显示了根据本发明设计的金属薄片坯件的顶视图。
图2由图1所示的坯件制作成的金属薄壳的侧视图。
图3是图2中沿A-A线的剖面图。
图4是图2中沿B-B线的剖面图。
图5显示了图2的局部放大的细节。
图6显示了本发明另一个实例的顶视图。
图7是沿图6中A-A线的剖面图。
图8是沿图6中B-B线的剖面图。
图9显示由图6所示坯件生产的薄片金属壳的侧视图。
图10是图9中沿C-C线的局部剖面放大图。
图1显示了根据本发明设计的金属薄片坯件1,其上有两条互相平行的预先设计的划痕线纹,相应为线3,4,这两条线延伸在坯件的整个长度上,并限定了位于它们之间的撕开条2。这一划痕的截面最好为V形。其最深处大约位于金属薄板厚度的中心(即依赖于金属薄板的厚度)。为了让撕开条2沿设计的裂纹线3、4撕开,撕开条包括一个其宽度超过跟在其后的撕开条2的宽度的舌部5。两条预先划好的裂纹线3、4一直沿伸到舌片5内。舌片5可以与一个适当的钥匙连接(图内未专门显示)。
用坯件1焊接成的金属薄壳(图2),被用来制造罐头(充填后再装上顶和底片)。此罐头可以用一钥匙(图内未显示)打开。操作时先将钥匙与舌片连接,然后再按通常打开罐头的方法,撕下预先划纹的撕开条2。
图2显示了金属薄片坯件1用侧向延压机或搭接焊接侧缝7制成的罐头壳6。舌片5越过不间断的侧焊缝7自由伸出。(舌片或多或少紧贴在其下罐头壳的表面上)。
图3和4显示了焊缝7一般区域罐头壳壁的剖面图。图3显示了一般搭接在极为均匀的焊接,而图4是在舌片5区域的焊缝。这一区域是冷焊生成的,因为舌片5使区域增大从而增加了接触的阻力。因为采用冷焊,所以以后打开罐头时没有困难。
通过适当的焊接程序可以确保冷焊形成,程序中在舌片5区域增
加焊接电流。
图5是图2中壳体6的局部放大图。可以很清楚地看到当拉起舌片5打开罐头时焊缝7是如何被突破或撕裂的。
从舌片5的外缘起始和延伸的可能的实际撕裂线(图内的虚线表示),向内偏通过焊缝7并且分别安全地终止在相应的预先划痕设计的撕裂线上。
采用这种金属薄片坯件制作并具有冷焊区作为开口裂隙的罐头可以用于包装容器和食品工业领域。
图6根据本发明的另一种金属薄片坯件的附图。这里舌片5可设计成撕开条2的直接延续部分,即它的宽度可以设计成和撕开条一样宽,或被设成比撕开条略微宽一些,正如实施例中所示。由于前述的原因,预先划痕设计的撕裂纹可延长到舌片内。这就保证撕过焊缝后实际撕裂线趋向设计撕裂线,并且随后沿着后者前进,而不至于损坏撕开条。
在这个示范的实例中采用一个横向的划痕10,划痕10位于撕开条2的末端或舌片5对面的金属薄片坯件边缘11,并在两条预先划痕设计的撕裂线3、4之间,以至和撕开条2宽度方向延伸。这一划痕最好位于罐壳1的壁的外表面上。
图7和图8分别是通过坯件1A-A和B-B线的剖面图,大致揭示了划痕的形状和大小。
图8揭示了位于距离边缘距离为d的横向划痕10。距离d要大于所选定的搭接焊接的宽度的搭接宽度,例如大0.2-2毫米。
图9显示了金属薄片坯件1用侧向延压机或相应的搭接的焊缝7
制成的壳体。舌片5且连续焊接缝7后伸出并在或多或少平坦地靠在舌下的壳壁上。
图10是沿图9中C-C线的剖面局部放大图。在此显示了在均匀的焊接之前那打开罐头用的起始部分是如何放置的。因为舌片不可能完全地平坦地安置在壳上,所以相对于焊缝其它部分及以后的均匀焊缝的焊接参数只有微小的变化,在这一区域用较高焊接压力则又可改善之。(对于密封焊接)。此外,由于横向划痕10一起形成,所以均匀地焊接材料可以被撕通,而且实际撕裂线将随向设计的撕裂线。这一点由于把设计的划线3、4延伸到舌片5上而进一步得到保证。
这里图示和描述3个发明的最佳实施例。显然本发明并不仅仅限制于此,在本权利要求范围内,还可应用于各种各样实施例和实际中。
Claims (1)
1、一种金属薄板罐头,其壳体在相对的自由边缘处具有搭接端,所说的搭接端限定了一搭接部分,在该搭接部分处,所说的搭接端由一条连续的焊缝连接,该焊缝在两边缘的整个长度上延伸,搭接端的外部一端具有一舌片,所说的舌片从自由边缘向外伸出,一撕开条从另一端延伸至舌片上,被一对隔开的可破裂的痕线所限定,其特征在于:撕开条在外部一端的自由边缘上的舌片宽度大于两划痕线之间的宽度,其中舌片受外拉力时壳体最初的破裂处发生在舌片相对侧边缘与焊缝处的痕线之间,以后在撕拉撕开条过程中不过早断裂。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH04729/85-2 | 1985-11-04 | ||
CH4728/85A CH667819A5 (de) | 1985-11-04 | 1985-11-04 | Blechzuschnitt zur herstellung von geschweissten blechzargen fuer blechdosen. |
CH472985A CH668369A5 (de) | 1985-11-04 | 1985-11-04 | Blechzuschnitt zur herstellung von geschweissten blechzargen fuer blechdosen. |
CH04728/85-0 | 1985-11-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN86106953A CN86106953A (zh) | 1987-10-28 |
CN1008259B true CN1008259B (zh) | 1990-06-06 |
Family
ID=25696147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN86106953A Expired CN1008259B (zh) | 1985-11-04 | 1986-11-03 | 制造罐头壳体的金属薄板坯料 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4763807A (zh) |
CN (1) | CN1008259B (zh) |
AU (1) | AU591715B2 (zh) |
BR (1) | BR8605414A (zh) |
DK (1) | DK164026C (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2636257B1 (fr) * | 1988-09-12 | 1990-10-12 | Cebal | Procede de realisation d'une ligne de dechirement non coupante et produits obtenus |
US10252376B2 (en) * | 2009-03-03 | 2019-04-09 | U-Haul International, Inc. | Welded lap joint with corrosive-protective structure |
CN101767672B (zh) * | 2009-12-28 | 2012-01-11 | 吴江市华源印铁制罐有限责任公司 | 加工卷开式易开合罐子的跳焊锡焊组合工艺 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US829036A (en) * | 1905-08-24 | 1906-08-21 | Joseph Tennel Ryan | Can. |
US2004104A (en) * | 1932-07-30 | 1935-06-11 | American Can Co | Container |
US2159325A (en) * | 1935-09-30 | 1939-05-23 | Guardian Safety Seal Company | Method of rendering sheet metal and sheet metal articles readily severable |
US2536044A (en) * | 1947-03-27 | 1951-01-02 | American Can Co | Container with narrow tearing strip |
US3838787A (en) * | 1973-01-12 | 1974-10-01 | Ellisco Inc | Scored and seam welded can |
CH669365A5 (zh) * | 1984-07-12 | 1989-03-15 | Elpatronic Ag |
-
1986
- 1986-10-16 AU AU64118/86A patent/AU591715B2/en not_active Ceased
- 1986-10-31 US US06/925,385 patent/US4763807A/en not_active Expired - Lifetime
- 1986-11-03 DK DK523386A patent/DK164026C/da not_active IP Right Cessation
- 1986-11-03 BR BR8605414A patent/BR8605414A/pt not_active IP Right Cessation
- 1986-11-03 CN CN86106953A patent/CN1008259B/zh not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU6411886A (en) | 1987-05-07 |
US4763807A (en) | 1988-08-16 |
DK523386D0 (da) | 1986-11-03 |
CN86106953A (zh) | 1987-10-28 |
AU591715B2 (en) | 1989-12-14 |
DK164026C (da) | 1992-09-28 |
DK164026B (da) | 1992-05-04 |
DK523386A (da) | 1987-05-05 |
BR8605414A (pt) | 1987-08-11 |
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