CN1100378A - 可多次使用的塑料桶及制造和改造该桶的方法 - Google Patents

可多次使用的塑料桶及制造和改造该桶的方法 Download PDF

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CN1100378A
CN1100378A CN93121137A CN93121137A CN1100378A CN 1100378 A CN1100378 A CN 1100378A CN 93121137 A CN93121137 A CN 93121137A CN 93121137 A CN93121137 A CN 93121137A CN 1100378 A CN1100378 A CN 1100378A
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bucket
lid
barrel
rib
flange
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CN1035425C (zh
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U·许茨
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Schuetz-Werke & Co KG GmbH
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Schuetz-Werke & Co KG GmbH
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
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    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
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    • B29C66/55—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles sealing elements being incorporated into the joints, e.g. gaskets
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packages (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Materials For Medical Uses (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

在桶盖凸缘的下面与桶体凸边的上面设置有同 心对置的环形凸起，热反射镜放置在凸起间压住，在 加热到凸起熔融的温度后将热反射镜撤走，对桶盖加 压使其与桶体通过熔融的凸起焊在一起，制成多次使 用的带塞口桶。可以在一次或多次使用后将把桶盖 与桶体焊在一起的焊接部切除，改造成带有简单的桶 盖与夹紧环的宽颈桶，或改造成带塞口桶盖可打开的 带塞口桶或通过外加锁闭件将桶盖与桶体重新焊接 起来制成一个新的带塞口桶。

Description

本发明涉及的是可多次使用的塑料桶，该塑料桶包括一个吹塑成形的桶体，在桶体上位于桶口下方一定距离处有一个由桶壁径向外延的实心棱，还包括一个注塑制成的塑料盖，该塑料盖上有一个围住桶颈的外缘和一个插入桶颈内、越过盖底延至桶口下方的内缘，在外缘与内缘之间嵌有一个密封环，在一个盖固定栓的作用下，该密封环被压靠在桶颈上的桶口边上（DE3937613AI）。
按照严格的环境保护法规，要求将一次性使用的容器过渡到可多次使用的容器、如塑料桶或铁桶，这种容器可改造成具有更大容积以便减少废弃物的容器或制成新的可多次使用的容器，从而减少了有害物质对环境的污染，而且还可以废弃、如燃烧无害材料以便进行改造并保持环境整洁，或者可以除去废料并略加清洗，以便对制造材料进行再加工。
随着可改造改造并且不会对环境产生有害物质污染的硬质容器的发展，业已产生了一类盖桶，例如在DE3539656AI中公开的带盖桶，这种桶部分地取代了迄今使用的密封的带盖桶。根据需要，这种桶上制有一层作为内衬的柔性内壳，特别是一个由塑料薄膜制成的内袋，例如由聚乙烯膜或由通过渗透和挤压方法成形的金属-塑料复合膜、如在铝箔两面上涂敷聚乙烯的复合膜制成的内袋。例如在DE8810760UI中公开的即是一种带内衬的桶。在塑料桶和铁桶上填充有一经干燥就几乎不会从桶壁上除掉的扩散性物质、如染料的情况下常使用内衬。在塑料桶上采用渗透法制成的复合膜可防止在溶剂中含有的填料扩散到桶壁上，同时也避免了桶壁上的物质反向扩散到溶剂中的可能性。在铁桶上采用内衬则可以省去至今人们为防止铁板磨蚀和腐蚀而采用的在桶内壁涂的防护漆。
本发明的目的在于提供一种可多次使用的桶，该桶在用作密封的带塞桶之后可用较低的造价改造成大口径的带盖桶或更新为带塞桶。
上述发明目的是通过具有权利要求1特征的可多次使用的塑料桶及具有权利要求4和6特征的制造和改造方法来实现的。
将一个吹塑成形的大口径桶体与一个通过压力焊接或外部注入方法固定到桶体上的注塑成形的带塞盖组合，可以以较低的造价制成能够满足容装危险流体所需要的最高安全要求的带塞桶。该桶通过简单的改造即可改造成带有可取下的简易盖的大口径桶或带有弹性锁环的带塞桶，从而可用于运输、存放危险较低的流体状、粒状和粉状的物质。
以下将结合附图进一步介绍本发明的可多次使用的塑料桶和制造及改造该桶的方法。其中：
图1为剖视图，其中表示了第一实施例的带塞桶的盖部分的结构，该桶具有一个用压力焊接固定的带塞盖;
图2表示了对应于图1中的盖部分的结构，其中有一个为准备压力焊接而设置的热反射镜;
图3为剖视图，其中表示了第二实施例的带塞桶的盖部分的结构，该桶具有一个用塑料注塑制成的锁环;
图4为剖视图，其中表示了一个带塞桶的盖部分的结构，在拆除带塞盖后该桶被改造成一个大口径的带盖桶。
如图1所示，被用作可多次使用桶的带塞桶1是由热塑塑料、如聚乙烯制成的，其中包括一个吹塑成形的大口径桶体2，桶体上有一个桶颈3，在桶颈上距桶口边4有一定距离处有若干个沿周向分布的拱筋5，用于加强桶颈3的刚度，以便支撑用塑料注塑而成的带塞盖6。带塞盖6具有一个将桶颈3围住的外缘7与一个插入桶颈3内的内缘8，该内缘从位于桶口9下方的盖底10向下延伸。带塞盖6及其盖底10插入到桶颈3内的深度达到了使在盖底10上成形的进、排料塞11及进、排气塞12的顶端处于盖上边缘13的下方。盖外缘7与盖内缘8共同构成了一个环形腔14，在该环形腔的基面处有一个沿轴向外突的环形凸肩15。从环形凸肩15的外面用压力注入一种双材料密封物质、例如聚乙烯与硬化剂，从而形成一个密封环16。
在注塑成形的带塞盖6的外缘7的底端有一个环形凸缘17，在吹塑成形的桶体2上距桶口有一定距离处有一个径向外延的实心棱18。
当盖6被盖上时，盖上的凸缘17与桶上的棱18之间有一距离，二者是通过一个与桶轴线19-19同轴的环形锁止隔板20相互焊接成一体的。
如图2所示，为制造图1所示的带塞桶1，在桶体2的实心棱18的上方设置了一个环形的热反射镜21，而在该热反射镜上方，带塞盖6的盖凸缘17的底面22处制有一个与桶轴线19-19同轴的环形凸肩23，在一定的压力P的作用下，该环形凸肩被压在热反射镜上。热反射镜21的底面22上制有一个环形槽25。加热时，由于施加在热反射镜21上的压力作用，桶上的实心棱13上的熔融的塑料材料上涨到热反射镜21的环形槽25中，从而形成一个环形的、与环形凸肩23对置的凸起26，同时在盖凸缘17上成形的环形凸肩23也被熔融。在加热过程完成后，将带塞盖6和热反射镜21从桶体2上取下，然后，在压力和密封环16的预应力作用下，将带有环形凸肩23的盖6安在桶的实心棱18上，这样，在盖凸缘17的底面22上的环形凸肩23与在桶棱18的顶面27上的环形凸起26就可以焊接成一个用于连接盖凸缘17与桶棱18的环形锁止隔板20。
作为上述制造方法的一种变换方案，环形凸起26也可以在桶的实心棱18上吹塑成形。
此外，盖凸缘17和桶棱18也可以仅通过环形凸肩23相互焊接。
为制造图3所示的带塞桶28，将带塞盖6在压力P与盖的密封环16的预应力作用下安到桶颈3上，在相互隔有一定距离的盖凸缘17和桶棱18上加压包封了一个由塑料制成的锁止环29，从而构成了一个将盖凸缘17与桶棱18相互连接的环形锁止隔板20。用于锁止环29的塑性材料最好沿切向喷注到相应的加压浇铸模内。
在图1和图3所示的带塞桶1、28使用过一次或多次之后，为对其进行再处理，用切割机或仿形仪上的一把或多把刀30或用一把锯或类似工具将盖6从大口径桶体2上拆除。于是，桶体2就可以改造成一个如图4所示的、带有简易桶盖32及弹性锁环33的大口径桶31，或者在桶体上焊上或压注上一个带塞盖从而可用作带盖桶或带塞桶。
图1和图3所示的带塞桶1、28与图4所示的大口径带盖桶31中都可以配备一个作为内衬的薄膜袋34，该袋可以用塑料薄膜或金属-塑料复合膜制成。用于图1所示的带塞桶1上的薄膜袋34是在焊接或注塑带塞盖6之前及在大口径桶盖32尚未安到桶颈3上时就衬在桶体2中了，而且薄膜袋该应包着上桶口边4，以便粘到桶口边与该上的密封件16之间。此外，也可以用粘结剂或热焊接将薄膜袋34上的若干点粘到桶体2的内壁上。
图1和图3所示的带塞桶1、28上的带塞盖6和图4所示的大口径桶31上的盖32上也可以配一个内衬35，该内衬可由塑料薄膜或金属-塑料复合薄膜制成，图1所示的带塞桶1上表示了该内衬35。

Claims (6)

1、一种可多次使用的塑料桶，该塑料桶包括一个吹塑成形的桶体，在桶体上位于桶口下方一定距离处有一个由桶壁径向外延的实心棱，还包括一个注塑制成的塑料盖，该塑料盖上有一个围住桶颈的外缘和一个插入桶颈内、越过盖底延至桶口下方的内缘，在外缘与内缘之间嵌有一个密封环，在一个盖锁止件的作用下，该密封环被压靠在桶颈上的桶口边上，其特征在于，该桶在开始用作带塞桶(1、28)时配备有一个带塞盖(6)，盖上有一个进、排料塞(11)和一个进、排气塞(12)，以及一个盖凸缘(17)和桶棱(18)，在盖(6)密封时，盖凸缘与桶棱之间有一定的距离(a)，两者通过一个与桶轴线(19-19)同轴的环形的锁止隔板(20)相互焊接成一体；在以后的使用中，则通过拆除锁止隔板(20)将桶改造成具有弹性锁止环(33)的带有简易盖(32)的大口径桶(31)，或带有可拆盖的大口径桶(31)，或者在桶体(2)上用锁止隔板(20)焊接上一个带塞盖(6)从而制成一个新的带塞桶(28)。
2、如权利要求1所述的桶，其特征在于，带塞桶（1、28）和/或带可拆盖（32）的大口径桶（31）配备一个由塑料薄膜或金属-塑料复合薄膜制成的薄膜袋（34）。
3、如权利要求1或2所述的桶，其特征在于，带塞桶（1、28）上用锁止隔板（20）焊接上的带塞盖（6）上和/或大口径桶（31）的可拆盖（32）上配备有一个由塑料薄膜或金属-塑料复合薄膜制成的内衬（35）。
4、一种用于制造如权利要求1至3所述的可多次使用的塑料桶的方法，其特征在于，在桶体（2）上的实心棱（18）的上方设置了一个环形的热反射镜（21），而在该热反射镜（21）上方，带塞盖（6）的盖凸缘（17）的底面（22）处制有一个与桶轴线同轴的环形凸肩（23），在一定的压力的作用下，该环形凸肩被压在热反射镜上，在使位于盖凸缘（17）上的环形凸肩（23）和桶棱（18）的上表面熔融的加热过程完成后，将带塞盖（6）和热反射镜（21）取下，然后，在压力和密封环（16）的预应力作用下，将带有环形凸肩（23）的盖（6）安在桶棱（18）上，这样环形凸肩（23）与桶棱（18）焊接成一个用于连接盖凸缘（17）与桶棱（18）的环形锁止隔板（20）。
5、如权利要求4所述的方法，其特征在于，借助于一个在压力作用下安到桶棱（18）上并且其底面（24）上带有一环形槽（25）的热反射镜（21），在桶棱（18）的上表面形成一个环形凸起（26），当取下热反射镜（21）后，该凸起与盖凸缘（17）的表面的环形凸肩（23）焊接成一个连接在盖凸缘（17）与桶棱（18）之间的锁止隔板（20），带塞盖（6）是在压力作用下安到桶棱（18）上的。
6、一种用于制造如权利要求1至3所述的可多次使用的塑料的方法，其特征在于，将带塞盖（6）在压力与盖的密封环（16）的预应力作用下安到桶颈（3）上，在相互隔有一定距离的盖凸缘（17）和桶棱（18）上加压包封了一个由塑料制成的锁止环（29），从而构成了一个将盖凸缘（17）与桶棱（18）相互连接的环形锁止隔板（20）。
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CN100352737C (zh) * 2004-03-11 2007-12-05 舒驰两合股份公司 由热塑性塑料制成宽口桶的制造方法
CN103786950A (zh) * 2012-10-26 2014-05-14 厦门信源环保科技有限公司 接合容器及制作具有接合容器的容器罐的方法
CN103786950B (zh) * 2012-10-26 2016-09-14 厦门信源环保科技有限公司 接合容器及制作具有接合容器的容器罐的方法
CN109600998A (zh) * 2016-04-06 2019-04-09 小格伦·H·莫里斯 具有改进密封件的开口端容器
CN109600998B (zh) * 2016-04-06 2020-08-25 小格伦·H·莫里斯 具有改进密封件的开口端容器
CN110505955A (zh) * 2017-03-09 2019-11-26 阿尔温莱纳股份有限两合公司阿尔普拉工厂 建立由彼此不同的塑料材料构成的构件之间的连接的方法和与其相关的具有倒出顶盖的容器
CN106966035A (zh) * 2017-05-15 2017-07-21 广州卓迅包装机械有限公司 食品压合罐
CN107010313A (zh) * 2017-05-15 2017-08-04 广州卓迅包装机械有限公司 食品罐
TWI671244B (zh) * 2017-05-15 2019-09-11 大陸商廣州卓誠食品科技有限公司 食品罐
CN107010313B (zh) * 2017-05-15 2019-10-18 广州卓诚食品科技有限公司 食品罐
CN108082715A (zh) * 2017-12-29 2018-05-29 苏州明强塑料有限公司 一种密封盖及采用该密封盖的容器

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LT3078B (en) 1994-11-25
SK142993A3 (en) 1994-09-07
NO934635L (no) 1994-06-17
ES2100436T3 (es) 1997-06-16
LV11149B (en) 1996-06-20
AU5216993A (en) 1994-07-14
CA2111558A1 (en) 1994-06-17
JPH06255659A (ja) 1994-09-13
DE59306183D1 (de) 1997-05-22
ZA939382B (en) 1994-08-08
CZ268293A3 (en) 1994-07-13
IL107886A0 (en) 1994-04-12
CN1035425C (zh) 1997-07-16
PL301498A1 (en) 1994-06-27
HU9303516D0 (en) 1994-04-28
PL173520B1 (pl) 1998-03-31
MX9307780A (es) 1994-07-29
HUT66369A (en) 1994-11-28
JP2660480B2 (ja) 1997-10-08
BR9305059A (pt) 1994-06-21
ATE151713T1 (de) 1997-05-15
US5568876A (en) 1996-10-29
EP0602553A3 (de) 1995-02-15
DE4242370C1 (de) 1994-05-11
GR3023341T3 (en) 1997-08-29
DK0602553T3 (da) 1997-10-27
AU660860B2 (en) 1995-07-06
YU78093A (sh) 1996-10-09
EP0602553A2 (de) 1994-06-22
NO934635D0 (no) 1993-12-15
SI9300656A (en) 1994-06-30
LTIP1507A (en) 1994-07-15
KR940014093A (ko) 1994-07-16
EE9400086A (et) 1995-12-15
LV11149A (lv) 1996-04-20
YU48500B (sh) 1998-09-18
US5556494A (en) 1996-09-17
EP0602553B1 (de) 1997-04-16
TW231998B (zh) 1994-10-11

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