CN110817053A - 积层剥离容器及其制造方法 - Google Patents
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Abstract
本发明是关于一种积层剥离容器及其制造方法,其包含有一外层及一内层,该内层用以容置一内容物,并可随着内容物的减少相对外层剥离收缩,所述外层底面接缝处(Parting Line)设置有一贯穿外层底面的空气导入缝,且该空气导入缝是由一经模具成形且呈下宽上窄的截面开口经冷却收缩而形成,而由此构成一种结构简单且制造方便的积层剥离容器。
Description
技术领域
本发明关于一种积层剥离容器及其制造方法,尤指一种易于制造的积层剥离容器。
背景技术
现有的积层剥离容器主要包含有一外层与可与外层剥离的内层,如中国台湾公告第I570029号发明专利案或中国台湾公告第I602683号发明专利案等,然而所述前案的结构复杂,制造工序麻烦,因此,现有积层剥离容器整体制造成本高,实有进一步改进的必要。
另外,中国台湾公告第504451号发明专利案(以下简称为参考案)揭示有一附有压力等化开口容器的制造方法及容器,其包含有一外容器及一内袋,于外容器底面形成有一等化开口,其制造方法是自一吹出模开放半组间共挤出一共轴的初模,将适量原料挤出,使外容器与缝部分接触的原料熔合,形成内袋被夹住,再沿轴向在外容器壁部分间固定并熔合,使内袋受压力作用,而形成等化开口。
然而,这些如参考案的制造方法,需于外容器及内袋吹制成形后,施予外容器一压力方能挤出形成等化开口,在制造时工序较为繁复,另外,因参考案在成型时,内袋被外容器所夹住,因此,如参考案的图7所示,在施予压力挤出等化开口后,内袋仍有一部份贴附于等化开口的一侧面上,如此将使等化开口的面积缩小,降低空气经等化开口进入外容器的效果。
发明内容
本发明的主要目的,在于提供一种积层剥离容器及其制造方法,简化积层剥离容器的制造工序,达到节省整体制造成本的目的。
本发明提供一种积层剥离容器,具有内层及外层,该内层用以容置一内容物,并能够随着内容物的减少相对外层剥离收缩,其中:所述外层底面接缝处(Parting Line)设置有一贯穿外层底面的空气导入缝,该空气导入缝是由一经模具成形且呈下宽上窄截面开口经冷却收缩而形成,且该内层没有被该外层于该空气导入缝处所夹住;
其中,该下宽上窄的截面开口的靠近下方的一侧的宽度至少为靠近上方一侧的宽度的两倍。
前述的积层剥离容器,其中,该外层顶部形成一阶级结构。
前述的积层剥离容器,其中,该内层的顶部形成一圆形排出口。
前述的积层剥离容器,其中,该贯穿外层底面的空气导入缝的两端分别设有两定位凸部,相对于内层底面则凹设有两能够分别被夹制于外层定位凸部的定位凹槽。
前述的积层剥离容器,其中,该空气导入缝呈三角形截面开口。
前述的积层剥离容器,其中,该空气导入缝呈半圆形截面开口。
前述的积层剥离容器,其中,该空气导入缝呈多角形截面开口。
本发明另提供一种积层剥离容器的制造方法,其包含有下列步骤:
提供一熔融管状积层结构,该积层结构包含有一外层及一内层;
将熔融管状积层结构置入于一容器模具中,该容器模具是由两能够相对开合的模座所组成,于其中一模座的底部设置有一能够相对该模座移动的刀具;
使两模座相靠近移动而盖合,于两模座盖合时,利用两模座的底面抵压熔融管状积层结构,使熔融管状积层结构的近底端处收缩靠合,使其熔融管状积层结构的外层与内层于收缩处形成一封闭面;
将一吹嘴置入于熔融管状积层结构顶端,并将空气吹入于熔融管状积层结构中,使熔融管状积层结构依容器模具的形状成型为具特定形状容器;
向上移动刀具,以利用该刀具将容器底端的废料同时切除,使外层底面接缝处呈一三角形截面开口;以及
开启模具,取出容器,待容器冷却后,外层因冷却而收缩,产生空气导入缝,以完成积层剥离容器的制作;
其中该内层并未为该外层于该空气导入缝处所夹住。
前述的积层剥离容器的制造方法,其中,于两模座的内侧底面分别凹设有一凹槽,而使容器于吹制成型时于外层与内层底面相对应形成有能够相对夹制的定位凸部与定位凹槽。
通过上述的技术手段,本发明可适当地简化积层剥离容器的结构与制造方法,以达到节省积层剥离容器整体生产成本的效果。
附图说明
图1是本发明积层剥离容器第一实施例的局部立体剖面图。
图2是本发明积层剥离容器第二实施例的局部立体剖面图。
图3是本发明积层剥离容器第二实施例的侧视剖面图。
图4是本发明积层剥离容器第二实施例的底视图。
图5是本发明积层剥离容器操作实施例的底视图。
图6至图9是本发明积层剥离容器的制造方法的剖面示意图。
图10是本发明积层剥离容器的制造方法移动刀具以切割空气导入缝的侧视剖面图。
图11是本发明积层剥离容器的制造方法形成空气导入缝的剖面示意图。
图12是本发明第三实施例的局部放大剖面图。
图13是本发明第四实施例的局部放大剖面图。
具体实施方式
以下配合附图及本发明的较佳实施例,进一步阐述本发明为达成预定发明目的所采取的技术手段。
本发明是关于一种积层剥离容器及其制造方法,请配合参看图1,由图中可看到,本发明的积层剥离容器主要包含有一外层10及一内层20,该内层20设置于外层10内,于其中可用以容置一凝胶、液状或膏状等的内容物,且可随内容物的减少而使内层20从外层10剥离收缩,又于外层10底面于其接缝处(Parting Line)设置有一贯穿外层10底面的空气导入缝12,其中该空气导入缝呈一下宽上窄的截面开口,通过该空气导入缝12的设置,当内容物由容器被排出时,该下宽上窄的截面开口增大内外压力差,会造成外层10与内层20间的压力不平衡,此时,外界空气压力就能轻易地通过空气导入缝12、且因内层没有被外层夹住,气流有更大的截面积可通过该空气导入缝12,所以就更没有阻力地将容器外部的空气导入于外层10与内层20之间,来提供容器压力的补偿作用,该下宽上窄的截面开口所提供的压力差还可以让已经进到容器内的空气无法再排出,以帮助内层20由外层10剥离收缩,而使内容物可顺利被排出容器;较佳的是,该下宽上窄的截面开口的靠近下方的一侧的宽度至少为靠近上方一侧的宽度的两倍,因此空气压力差的比例也是至少两倍,所以外部的空气更容易导入于外层10与内层20之间;且上面最窄处即为一点接触,让内部的压力小于外部压力则无法排出,且一点接触的结构更有利于冷却收缩时,自然形成该空气导入缝12。
另请配合参看图2至图4,又于外层10底部凸设有两定位凸部14,而于内层20底面则相对凹设有两可分别被夹制于外层10定位凸部14内的定位凹槽22,通过外层10定位凸部14对内层20的定位凹槽22的夹制效果,请配合参看图5,可用以限制内层20相对外层10剥离收缩的方向,如此可令内层20在相对外层10剥离时有较为规则的收缩变形,在本发明的较佳实施例中,如图5所示,该内层20的上、下两侧朝中间对称地收缩变形,使内容物能被充分地由容器中挤出,以避免因内层20的不规则变形而残留过多的内容物于容器中,造成浪费,较佳地,该两定位凸部14与定位凹槽22的位置分别位于空气导入缝12的两端,如此将可将内层20剥离收缩的方向控制于与空气导入缝12的切割面相垂直的方向。
进一步,在本发明的较佳实施例中,该外层10的顶部形成一阶级结构15,该内层20的顶部形成一圆形排出口21。
另外,如图9所示,本发明的该空气导入缝12可呈三角形截面开口;或如图12所示,该外层10A的空气导入缝12A呈半圆形截面;或如图13所示,该外层10B的空气导入缝12B呈多角形截面。
请再配合参看图6至图9,本发明积层剥离容器的制造方法主要包含有下列步骤:
提供一熔融管状积层结构30,该积层结构30包含有一外层10及一内层20。
将熔融管状积层结构30置入于一容器模具中,该容器模具是由两可相对开合的模座40所组成,各模座40的底部形成一斜角,并朝该模座40的内部凸伸形成一突出部41,进一步,于其中一模座40的底部设置有一可相对该模座40上下移动的刀具42,再进一步,各模座40内部靠近顶部的位置形成一阶级槽401,另外,如图10所示,于两模座40的内侧底面可分别凹设有一凹槽402。
使两模座40相靠近移动而盖合,于两模座40盖合时,利用两模座40的底面抵压熔融管状积层结构30,使管状积层结构30的近底端处收缩靠合而形成一接缝处(PartingLine),使其管状积层结构30的外层10与内层20于收缩处形成一封闭面,其中,该两模座40的突出部41会将该管状积层结构30朝该两模座40内抵靠,使该管状积层结构30底部中心处如图7所示朝内朝上挤压。
如图8所示,将一吹嘴50由熔融管状积层结构30顶端开口置入于熔融管状积层结构30内,并将空气吹入于熔融管状积层结构30中,使熔融管状积层结构30膨胀并依容器模具的形状成型为具特定形状容器,其中,该外层10的顶部依各模座40的阶级槽401而形成所述阶级结构15,进一步,如图10所示,可通过控制两模座40的内侧底面凹槽402的宽度,而使容器于吹制成型时,于外层10形成有可恰好夹制内层20底面所形成定位凹槽22的定位凸部14。
向上移动刀具42,以利用该刀具42将容器底端的废料切除,使外层10底面接缝处(Parting Line)呈一三角形截面开口,较佳的是,通过选用不同的模具40,该不同的模具40具有不同的底部形状以及不同形状的突出部41,例如弧形或多角形,能使外层10底面接缝处呈一半圆形截面开口或一多角形截面开口。
如图9及图11所示,开启模具,取出容器,待容器冷却后,由于该三角形截面开口使外层10因冷却而收缩,自然产生空气导入缝12,因此无需再后加工来产生空气导入缝,以完成积层剥离容器的制作。
通过上述的制法,可于刀具42切除废料时同时于外层10底面形成空气导入缝12,可大幅简化积层剥离容器的制作工序,以由此达到降低积层剥离容器整体制造成本的效果,较佳的是,内层20不会被外层10于空气导入缝12处所夹住,可提高空气导入缝12整体可供气流通过的截面积及降低空气进入时内层被夹住所造成的阻力,藉以提升空气经由空气导入缝12进入内层20与外层10间的效果。
以上所述仅是本发明的较佳实施例而已,并非对本发明做任何形式上的限制,虽然本发明已以较佳实施例披露如上,然而并非用以限定本发明,任何本领域的技术人员,在不脱离本发明技术方案的范围内,当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。
Claims (10)
1.一种积层剥离容器,具有内层及外层,该内层用以容置一内容物,并能够随着内容物的减少相对外层剥离收缩,其特征在于:
所述外层底面接缝处设置有一贯穿外层底面的空气导入缝,该空气导入缝是由一经模具成形且呈下宽上窄的截面开口冷却收缩而形成,且该内层没有被该外层于该空气导入缝处所夹住;
其中,该下宽上窄的截面开口的靠近下方的一侧的宽度至少为靠近上方一侧的宽度的两倍。
2.根据权利要求1所述的积层剥离容器,其特征在于:该外层顶部形成一阶级结构。
3.根据权利要求1所述的积层剥离容器,其特征在于:该内层的顶部形成一圆形排出口。
4.根据权利要求2所述的积层剥离容器,其特征在于:该内层的顶部形成一圆形排出口。
5.根据权利要求1至4中任一项所述的积层剥离容器,其特征在于:该贯穿外层底面的空气导入缝的两端分别设有两定位凸部,相对于内层底面则凹设有两能够分别被夹制于外层定位凸部的定位凹槽。
6.根据权利要求1所述的积层剥离容器,其特征在于:该空气导入缝呈三角形截面开口。
7.根据权利要求1所述的积层剥离容器,其特征在于:该空气导入缝呈半圆形截面开口。
8.根据权利要求1所述的积层剥离容器,其特征在于:该空气导入缝呈多角形截面开口。
9.一种积层剥离容器的制造方法,其特征在于,该积层剥离容器的制造方法包含有下列步骤:
提供一熔融管状积层结构,该积层结构包含有一外层及一内层;
将熔融管状积层结构置入于一容器模具中,该容器模具是由两能够相对开合的模座所组成,于其中一模座的底部设置有一能够相对该模座移动的刀具;
使两模座相靠近移动而盖合,于两模座盖合时,利用两模座的底面抵压熔融管状积层结构,使熔融管状积层结构的近底端处收缩靠合,使其熔融管状积层结构的外层与内层于收缩处形成一封闭面;
将一吹嘴置入于熔融管状积层结构顶端,并将空气吹入于熔融管状积层结构中,使熔融管状积层结构依容器模具的形状成型为具特定形状容器;
向上移动刀具,以利用该刀具将容器底端的废料同时切除,使外层底面接缝处呈一三角形截面开口;以及
开启模具,取出容器,待容器冷却后,外层因冷却而收缩,产生空气导入缝,以完成积层剥离容器的制作;
其中该内层并未为该外层于该空气导入缝处所夹住。
10.根据权利要求9所述的积层剥离容器的制造方法,其特征在于:于两模座的内侧底面分别凹设有一凹槽,而使容器于吹制成型时于外层与内层底面相对应形成有能够相对夹制的定位凸部与定位凹槽。
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