CN201712838U - 饮料三片罐罐体 - Google Patents

饮料三片罐罐体 Download PDF

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CN201712838U
CN201712838U CN2010201068687U CN201020106868U CN201712838U CN 201712838 U CN201712838 U CN 201712838U CN 2010201068687 U CN2010201068687 U CN 2010201068687U CN 201020106868 U CN201020106868 U CN 201020106868U CN 201712838 U CN201712838 U CN 201712838U
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necking down
tank body
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circular arc
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赵宇晖
吕春凤
陈博
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Origen Polytron Technologies Inc
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BEIJING ORG XINMEI CAN MANUFACTURING CO LTD
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Abstract

本实用新型公开了一种饮料三片罐罐体。罐体材料二次冷轧马口铁的厚度为0.15mm~0.17mm,罐体顶部有翻边,罐体的上部有三道缩颈环,中间为罐身,罐体的下部有一道缩颈环,罐体的底部有翻边,罐体的内表面和外表面有树脂层,其特征是:一缩颈外圆弧半径为4.2mm~4.7mm,二缩颈外圆弧半径为4.2mm~4.7mm,三缩颈外圆弧半径为4.2mm~4.7mm,一缩颈内圆弧半径为0.8mm~1.2mm,二缩颈内圆弧半径为0.8mm~1.2mm,三缩颈内圆弧半径为0.8mm~1.2mm,罐体轴向承压力为2.23kN~2.45kN。

Description

饮料三片罐罐体 
技术领域
本发明涉及金属包装容器领域,具体的说是一种用于饮料包装的金属三片罐体。 
背景技术
三片罐由顶盖、罐体、底盖组成,由于其自身方便、环保、成本低廉等特点已经有了100多年的发展历史。随着时间的推移,人们节能环保观念日益增强,减少原材料的消耗与减少废弃包装材料对环境的污染便成为了金属包装行业发展的一个重要方向。 
目前我国饮料三片罐生产中,三缩颈罐体是应用比较广泛的一种,罐体的形状是:罐体顶部有翻边,罐体的上部有三道缩颈环,中间为罐身,罐体的下部有一道缩颈环,罐体的底部有翻边,罐体的内表面和外表面有较薄的树脂层,罐体缩颈部位的一缩颈外圆弧半径为5mm,二缩颈外圆弧半径为5mm,三缩颈外圆弧半径为5mm,一缩颈内圆弧半径为1.5mm,二缩颈内圆弧半径为1.5mm,三缩颈内圆弧半径为1.5mm,罐体材料为厚度在0.20mm~0.24mm的马口铁。原材料成本要占总成本的60%~70%,为了降低成本,目前采用二次冷轧工艺生产出厚度减薄到0.20mm以下,如厚度在0.15mm~0.17mm二次冷轧马口铁替代原有材料制造三缩颈罐体。但是材料减薄以后缩颈变形无法提供足够的强化效果,产品的力学性能由于材料厚度的减薄而下降,产品制成后容易发生瘪罐等缺陷,产品在高压灌装和运输的过程中比较危险。 
发明内容
为了克服原有产品的力学性能由于材料厚度的减薄而下降,产品制成后容易发生瘪罐等缺陷。本发明提供了一种带有合理缩颈圆弧的饮料三片罐罐体。 
本发明解决其技术问题所采用的技术方案是:罐体材料二次冷轧马口铁的厚度为0.15mm~0.17mm,罐体顶部有翻边,罐体的上部有三道缩颈环,中间为罐身,罐体的下部有一道缩颈环,罐体的底部有翻边,罐体的内表面和外表面有较薄的树脂层,其特征是:将缩颈部位的外圆弧半径及内圆弧半径设计成一缩颈外圆弧半径为4.2mm~4.7mm,二缩颈外圆弧半径为4.2mm~4.7mm,三缩颈外圆弧半径为4.2mm~4.7mm,一缩颈内圆弧半径为0.8mm~1.2mm,二缩颈 内圆弧半径为0.8mm~1.2mm,三缩颈内圆弧半径为0.8mm~1.2mm,罐体轴向承压力为2.23KN~2.45KN。 
缩颈工艺是通过材料的变形来提高罐体强度的。材料减薄后变形量过大则应力过高,容易出现褶皱、爆口等缺陷;材料变形量过小则使罐体强度不足,容易发生瘪罐。为了这样一对矛盾本实用新型将一缩颈外圆弧半径为4.2mm~4.7mm,二缩颈外圆弧半径为4.2mm~4.7mm,三缩颈外圆弧半径为4.2mm~4.7mm,一缩颈内圆弧半径为0.8mm~1.2mm,二缩颈内圆弧半径为0.8mm~1.2mm,三缩颈内圆弧半径为0.8mm~1.2mm,以上设计可以使罐体在增大强度和减小应力所带来的缺陷之间取得一个很好的平衡,最后罐体轴向承压力为2.23KN~2.45KN。 
本发明的有益效果是:克服了原有厚度在0.15mm~0.17mm二次冷轧马口铁生产三缩颈饮料罐时由于强度不够而导致的瘪罐,提高产品合格率;扩大材料减薄的应用范围降低企业成本,节能环保;提高产品的力学性能使其在灌装和运输的过程中更加安全。 
附图说明
下面结合附图和实施方式对本实用新型作进一步详细说明。 
图1为普通三缩颈饮料三片罐罐体的剖视图。 
图2为图1中A的局部放大视图。 
图3为本实用新型的罐体剖视图。 
图中1.顶部翻边,2.三缩颈外圆弧,3.二缩颈外圆弧,4.一缩颈外圆弧,5.罐身,6.底部缩颈,7.底部翻边,8.三缩颈内圆弧,9.二缩颈内圆弧,10.一缩颈内圆弧。 
具体实施方式
图1为普通三缩颈饮料三片罐罐体的剖视图。为了便于理解,需要将图1与图2结合起来说明,图2是图1中缩颈部位A的局部放大视图局部放大视图。图1中罐体材料二次冷轧马口铁的厚度为0.15mm~0.17mm,罐体为近似空心圆柱型,罐体的内表面和外表面涂覆有很薄一层树脂,罐体顶部有翻边(1),罐体的上部是缩颈部位,缩颈部位由一缩颈、二缩颈、三缩颈组成,缩颈部位的一缩颈外圆弧(4)半径为5mm,二缩颈外圆弧(3)半径为5mm,三缩颈外圆弧(2)半径为5mm,一缩颈内圆弧(10)半径为1.5mm,二缩颈内圆弧(9) 半径为1.5mm,三缩颈内圆弧(8)半径为1.5mm,中间为罐身(5),罐体的下部有一道缩颈环(6),罐体的底部有翻边(7)。 
图3为本实用新型的罐体剖视图。其中罐体材料二次冷轧马口铁的厚度为0.15mm,罐体为近似空心圆柱型,罐体的内表面和外表面涂覆有很薄一层树脂,罐体顶部有翻边(1),罐体的上部是缩颈部位,缩颈部位的一缩颈外圆弧(4)半径为4.5mm,二缩颈外圆弧(3)半径为4.5mm,三缩颈外圆弧(2)半径为4.5mm,一缩颈内圆弧(10)半径为1.0mm,二缩颈内圆弧(9)半径为1.0mm,三缩颈内圆弧(8)半径为1.0mm,中间为罐身(5),罐体的下部有一道缩颈环(6),罐体的底部有翻边(7)。 
本实用新型提供的罐体可以将0.15mm厚的二次冷轧马口铁经过涂布、剪板、焊接、内补涂、外补涂、烘干后制成圆柱形酮体,酮体在组合机上经过一缩、二缩、三缩、翻边最终制成罐体,其中一缩颈外圆弧(4)半径为4.5mm,二缩颈外圆弧(3)半径为4.5mm,三缩颈外圆弧(2)半径为4.5mm,一缩颈内圆弧(10)半径为1.0mm,二缩颈内圆弧(9)半径为1.0mm,三缩颈内圆弧(8)半径为1.0mm。采用仪器法测量罐体轴向承压力为2.23KN~2.45KN。 

Claims (1)

1.一种饮料三片罐罐体,罐体材料二次冷轧马口铁的厚度为0.15mm~0.17mm,罐体顶部有翻边,罐体的上部有三道缩颈环,中间为罐身,罐体的下部有一道缩颈环,罐体的底部有翻边,罐体的内表面和外表面有较薄的树脂层,其特征是:一缩颈外圆弧半径为4.2mm~4.7mm,二缩颈外圆弧半径为4.2mm~4.7mm,三缩颈外圆弧半径为4.2mm~4.7mm,一缩颈内圆弧半径为0.8mm~1.2mm,二缩颈内圆弧半径为0.8mm~1.2mm,三缩颈内圆弧半径为0.8mm~1.2mm,罐体轴向承压力为2.23KN~2.45KN。
CN2010201068687U 2010-02-03 2010-02-03 饮料三片罐罐体 Expired - Lifetime CN201712838U (zh)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102351062A (zh) * 2011-06-27 2012-02-15 奥瑞金包装股份有限公司 罐体加工方法
CN107352118A (zh) * 2017-08-03 2017-11-17 福建德通金属容器股份有限公司 小型茶叶三片罐
CN107416304A (zh) * 2017-08-03 2017-12-01 福建德通金属容器股份有限公司 小型食品三片罐
CN109940354A (zh) * 2019-05-06 2019-06-28 深圳市大满包装有限公司 一种金属罐制造工艺

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102351062A (zh) * 2011-06-27 2012-02-15 奥瑞金包装股份有限公司 罐体加工方法
CN102351062B (zh) * 2011-06-27 2013-11-06 奥瑞金包装股份有限公司 罐体加工方法
CN107352118A (zh) * 2017-08-03 2017-11-17 福建德通金属容器股份有限公司 小型茶叶三片罐
CN107416304A (zh) * 2017-08-03 2017-12-01 福建德通金属容器股份有限公司 小型食品三片罐
CN109940354A (zh) * 2019-05-06 2019-06-28 深圳市大满包装有限公司 一种金属罐制造工艺

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