CN108367501B - 用于将眼科镜片包装的覆盖膜和眼科镜片包装的基部热结合在一起的方法 - Google Patents

用于将眼科镜片包装的覆盖膜和眼科镜片包装的基部热结合在一起的方法 Download PDF

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CN108367501B
CN108367501B CN201680071230.4A CN201680071230A CN108367501B CN 108367501 B CN108367501 B CN 108367501B CN 201680071230 A CN201680071230 A CN 201680071230A CN 108367501 B CN108367501 B CN 108367501B
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base
support
ring
cover film
bonding
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CN108367501A (zh
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A·菲舍尔
E·库瑟
V·拉尼格
P·奥斯特
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Alcon Inc
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Alcon Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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    • A45C11/005—Contact lens cases
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    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
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    • B29C66/112—Single lapped joints
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    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
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    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

一种用于将比如接触镜片包装、尤其是软性接触镜片包装的眼科镜片包装(1)的覆盖膜(3)与眼科镜片包装(1)的基部(2)热结合在一起的方法，包括以下步骤：‑提供支撑基部(2)和安排在其上的覆盖膜(3)的包装支座(9)，基部(2)包括凹陷(4)，凹陷装盛被浸入液体(6)中的眼科镜片(5)；‑将覆盖膜(3)和基部(2)沿结合区域(7)机械地按压在一起同时向结合区域(7)施加热量，结合区域具有完全围合凹陷(4)的形状，由此将覆盖膜(3)与基部(2)沿结合区域(7)热结合在一起；其中，提供包装支座(9)的步骤包括在包装支座(9)的上表面(10)上安排柔性支撑元件(18)以形成支撑区域(19)，支撑区域在形状上与结合区域(7)相对应的并且被安排成与结合区域对齐，其中柔性支撑元件(18)具有比基部(2)的柔性更大的柔性。

Description

用于将眼科镜片包装的覆盖膜和眼科镜片包装的基部热结合 在一起的方法
技术领域
本发明涉及一种用于将眼科镜片包装的覆盖膜与眼科镜片包装的基部热结合在一起的方法，并且涉及一种用于支撑所述基部的包装支座。
背景技术
眼科镜片(比如接触镜片/隐形眼镜，尤其是软性接触镜片)通常通过使用本领域已知的自动包装过程和自动包装系统被包装在比如泡罩包装等包装中。
例如在WO 98/32587中描述了用于以紧密密封的方式包装接触镜片的方法和设备。在接触镜片被引入泡罩包装的基部(壳体)的凹陷中之后，预定量的储存和/或保存液体(比如盐水)被分配到所述凹陷中。其后，覆盖膜(箔)被置于泡罩包装的基部上、并且被热结合至所述基部。在结合期间，可加热的接触板被按压在安排在基部上的覆盖膜上，同时，所述基部连同安排在其上的覆盖膜由包装支座支撑。
在颗粒位于包装支座的表面上的情况下，或者在基部的厚度在包装支座支撑所述基部的区域(通常是凸缘)中变化的情况下，或出于其他任何原因，在结合过程中，基部可能不会均匀地搁置在包装支座上。这可能导致覆盖膜不充分或者不均匀地结合在基部上。包括不充分地结合的覆盖膜的接触镜片包装不能分售给消费者并且必须被丢弃，因此降低了良品率。同样地，不均匀地结合的接触镜片包装可能必须被分选出来以免为了触及接触镜片而剥离覆盖膜所需的剥离力超出剥离力的预定范围，所述剥离力对于使用者打开包装而言被认为是方便的。
在结合过程中增加机械压力可以总体上克服结合不充分的问题。然而，增加机械压力可能导致在剥离覆盖膜期间覆盖膜分层，或可能导致覆盖膜的不利的剥离性能，例如导致为了打开接触镜片包装而剥离覆盖膜所需的剥离力太大，使得接触镜片包装不能被分售给消费者。由于每个批次的覆盖膜具有最佳结合温度，所以这可能导致一些批次的覆盖膜不能用于接触镜片的包装。
本发明的目的是克服或至少大大减少上述现有技术缺点。
发明内容
这个目的通过根据本发明的如在独立权利要求中所指定的方法和包装支座来实现。有利的方面是从属权利要求的主题。
根据本发明，一种用于将比如接触镜片包装、尤其是软性接触镜片包装等眼科镜片包装的覆盖膜与所述眼科镜片包装的基部热结合在一起的方法，所述方法包括以下步骤：
-提供支撑基部和安排/布置在所述基部上的覆盖膜的包装支座，所述基部包括装盛眼科镜片的凹陷；
-将所述覆盖膜和所述基部沿结合区域机械地按压在一起同时向所述结合区域施加热量，所述结合区域具有完全围合所述凹陷的形状，由此将所述覆盖膜与所述基部沿所述结合区域热结合在一起。
所述提供支撑所述基部的所述包装支座的步骤包括在所述包装支座的上表面上安排柔性支撑元件以形成支撑所述基部的支撑区域，所述支撑区域在形状上与所述结合区域相对应并且被安排成与所述结合区域对齐。所述柔性支撑元件具有比所述基部的柔性更高的柔性。
根据依据本发明的方法的一方面，所述将所述覆盖膜与所述基部沿所述结合区域机械地按压在一起同时向所述结合区域施加热量的步骤包括：
-提供可加热的接触板，所述可加热的接触板具有在形状上与所述结合区域相对应的接触表面，并且
-将所述包装支座朝向所述可加热的接触板移动，或反之亦然，直到预定的结合力以及热量通过所述接触表面被施加至所述结合区域。
根据依据本发明的方法的一个特定方面，所述预定的结合力小于650N，尤其是小于500N(例如300N或更小)，并且所述接触表面处的温度能够在190℃至210℃的范围内选择。通过举例的方式，预定的结合力可以在280N至380N的范围内。
根据依据本发明的方法的另外一方面，所述基部由一种或多种塑料制成，尤其是由聚烯烃、例如聚丙烯制成。
根据依据本发明的方法的还又一方面，所述柔性支撑元件由弹性材料制成，所述弹性材料具有比制成所述基部的材料的弹性更大的弹性。
仍然根据依据本发明的方法的另一个方面，所述弹性材料是硅树脂。
根据依据本发明的方法的又另外一方面，所述柔性支撑元件是环/环形元件。
根据依据本发明的方法的另外一方面，所述环包括下部和上部，所述上部具有比所述下部的宽度更大的宽度。所述上部具有形成所述支撑区域的连续的顶表面。
根据依据本发明的方法的另外一方面，所述环包括形成在所述环的下部上的固定销。
根据依据本发明的方法的另外一方面，所述固定销沿所述环的下部等间距安排。
根据依据本发明的方法的另外一方面，所述包装支座的上表面包括支撑结构，所述支撑结构具有在形状上与所述结合区域的形状相对应的支撑结构上表面、并且具有在所述支撑结构上表面中的凹槽，其中所述环的下部被安排在所述凹槽中，并且其中所述环的上部从所述支撑结构上表面突出。
根据依据本发明的方法的另外一方面，所述凹槽仅基本上完全沿所述支撑结构上表面延伸，使得所述凹槽具有第一末端和第二末端以在所述凹槽的所述第一末端与所述第二末端之间形成连接板/连接部(web)。所述环的下部被安排在所述凹槽中并且具有容纳所述连接板的间隙。
本发明的另一个主题是一种包装支座，所述包装支座用于支撑比如接触镜片包装、尤其是软性接触镜片包装等眼科镜片包装的基部以及所述眼科镜片包装的安排在所述基部上的覆盖膜。所述包装支座包括上表面，所述上表面包括支撑结构，所述支撑结构具有支撑结构上表面，在所述支撑结构上表面具有凹槽。所述包装支座进一步包括由弹性材料制成的环，所述弹性材料具有比有待被支撑的所述基部的材料的弹性更大的弹性。所述环包括上部和下部，而所述环的下部被安排在在所述支撑结构上表面中的所述凹槽中，并且其中所述环的上部从所述支撑结构上表面突出。所述环的上部具有连续的顶表面，所述连续的顶表面形成支撑区域以支撑所述眼科镜片包装的所述基部。所述包装支座的上表面的所述支撑结构被成形为限定腔体，所述腔体用于容纳所述眼科镜片包装的所述基部的凹陷。
在所述包装支座的一般为刚性的上表面上安排柔性(尤其是弹性或软性)支撑元件，即向所述基部提供柔性支撑而不是刚性支撑，导致在所述覆盖膜与所述基部的热结合期间沿所述结合区域的更一致的压力分布，尤其是在所述基部没有均匀地搁置在所述包装支座上的情况下，或在所述基部沿所述结合区域具有厚度变化的情况下。相应地，上述措施大幅地减小或消除了覆盖膜与基部的不充分或不利的热结合的风险。
此外，必须被施加以在热结合期间产生沿结合区域的充足的机械压力的机械力在与现有技术相比时可以被显著地减小。这可以产生额外的益处。例如，由于经减小但更一致的压力允许覆盖膜与基部产生更一致的热结合，所以热结合的质量可以提高，从而提高剥离性能。提高的剥离性能是指覆盖膜可以被消费者更轻松地剥离，从而对消费者而言增加了便利性。在较低的结合温度下，当与现有技术相比时，热结合区域可以变得更宽并且更一致。在较高的结合温度下，可以更可靠地避免在剥离期间覆盖膜的分层。
如在此处所使用的术语“在形状上与结合区域相对应并且被安排成与所述结合区域对齐的支撑区域”是指所述支撑区域具有与所述结合区域基本上相同的形状，并且所述支撑区域和所述结合区域轴向地对齐。具有“基本上相同的形状”是指支撑区域具有可以比结合区域的宽度更小、相等、或更大的宽度，只要在热结合过程中沿结合区域的一致的压力分布可以被实现。“一致的压力分布”在这方面是指沿结合区域的压力变化不会超过约20％，优选的小于10％，并且甚至更优选地小于5％。
当与现有技术相比时，根据本发明的方法允许使用更薄的覆盖膜。虽然可以使用厚度上至600μm的覆盖膜，但是本领域中通常使用的覆盖膜具有大于200μm的厚度或者甚至低至150μm的厚度。这种覆盖膜可以被可靠地热结合，这可以导致节约材料和成本和/或更加缩短完成覆盖膜与基部可靠的热结合所需的时间间隔。
实际上，不仅基部的几何尺寸，而且基部的材料和覆盖膜的材料可以在一定程度上变化。因此，特定批次的基部与特定批次的覆盖膜的每个组合具有在一定范围内的最佳结合温度，所述最佳结合温度导致有利的剥离性能并且同时导致最小数量的不可接受的热结合或没有不可接受的热结合。一个批次的基部或覆盖膜或两者的每次更换可能需要调整最佳结合温度的范围以实现有利的结果。最佳结合温度的范围越宽，将不同批次的基部与不同批次的覆盖膜组合起来越容易。当与现有技术相比时，根据本发明的方法允许在被增加的最佳结合温度范围内可靠地热结合不同批次的基部和不同批次的覆盖膜。
在热结合期间沿结合区域可以施加的经减小的机械力和所产生的经减小的机械压力可以减小所涉及的包装设备的磨损。因此，一方面可以降低维护费用，另一方面可以增加包装设备的使用寿命。此外，经减小的机械力和沿结合区域的经减小的机械压力降低了结合过程中消耗的能量。
柔性元件可以预制成已经具有与接合区域的形状类似的形状，或者在预制柔性元件的形状与接合区域的形状不同的情况下，在柔性元件被安装到包装支座时柔性元件可以被容易地形成为具有期望的形状。
可以制成柔性元件的材料可以是比基部更可压缩的任何柔性材料、弹性材料或软性材料。术语“更可压缩”描述了柔性元件被较大程度地压在一起的性质，即，在施加相同的力或压力时，以比基部以更大的距离被压缩在一起。
另一个益处是柔性支撑元件可以被固定地安装至包装支座。在这种背景下，“固定地安装”是指柔性支撑元件被连接至包装支座，其方式为使得即使在热结合之后，或者在后续的包装过程中当将基部从包装支座上移除时，柔性支撑元件保持被安排在包装支座上。
进一步的益处是柔性支撑元件(例如环)可以被容易地安装至包装支座并且容易地从包装支座上移除。例如，在环具有包含固定销的下部和从支撑结构上表面突出的上部的情况下，下部可以被可靠地安装至支撑结构上表面中的凹槽中，同时上部可以提供在结合期间用于搁置基部的足够宽的支撑区域。
本发明的又另一个益处是柔性支撑元件可以被实施，其方式为使得防止柔性支撑元件沿凹槽在无意中移动，因为支撑结构上表面上的连接板和设置在环的下部中的相应的间隙可以防止任何此类移动。
附图说明
其他有利的方面可以从以下借助于附图对本发明的实施例详细描述得出，在附图中：
图1示出了软性接触镜片包装的实施例的透视图；
图2示出了根据本发明的包装支座的实施例的透视图；
图3示出了图2所示的包装支座的柔性支撑元件的底视图；
图4示出了沿图3所示的柔性支撑元件的线IV-IV截取的截面；
图5以放大视图的方式示出了图4中的细节V；
图6示出了沿图3所示的柔性支撑元件的线VI-VI截取的截面；
图7示出了沿图3所示的柔性支撑元件的线VII-VII截取的截面；
图8示出了五个基部和安排在其上的覆盖膜的连续条带的布置；
图9示出了包括多个轨道的热封工位(结合工位)，其中每个轨道上安排有包装支座；并且
图10示出了图9中的热封工位的可加热的接触板的仰视图，所述可加热的接触板具有与结合轮廓在形状上相对应的接触表面。
具体实施方式
图1示出了泡罩包装类型的软性接触镜片包装1(通常代表眼科镜片包装)的实施例的透视图。软性接触镜片包装1包括基部2和覆盖膜3。基部2包括凹陷4，所述凹陷装盛软性接触镜片5(通常代表眼科镜片)，所述软性接触镜片被浸入储存和/或保存液体6(例如盐水)中。在软性接触镜片包装1封闭状态下，基部2和覆盖膜3沿结合区域7被紧密结合在一起，使得没有液体或气体可以逃离或进入凹陷4，浸入液体6中的接触镜片5被存储在所述凹陷中。结合区域7完全围绕凹陷4。结合区域7(类似于装盛浸入液体6中的软性接触镜片5的凹陷4)可以具有露珠的形状。结合区域7位于凸缘8的一部分上，所述凸缘从凹陷4以平面的方式向外延伸、并且被定位成直接邻近凹陷4。
通常，基部2由塑料制成，例如由聚烯烃(比如聚丙烯)制成，并且通过注射模制制造。这样的基部2可以被非常可靠地生产，并且制造成本低廉。此外，此类塑料基部2适合于热结合，而不需要在将覆盖膜3与基部2热结合之前添加任何额外的结合材料(胶水、粘合剂、或类似物)。
在将基部2与覆盖膜3热结合在一起之前，眼科镜片5被置于凹陷中并且液体6被分配进凹陷4中。通常，液体6可以在眼科镜片5被置于凹陷4中之前或之后被分配进凹陷4中，或者可以在将镜片放置进凹陷4中的同时被分配。
覆盖膜3可以包括多个层，例如其可以包括七个层。覆盖膜3具有600μm或更小的厚度，通常具有大于200μm或者甚至低至150μm的厚度。这些层可以使用层压技术生产。覆盖膜3面向基部2的层可以包括适合于将覆盖膜3与基部2热结合在一起的一种或多种塑料。
图2示出了根据本发明的包装支座9的实施例的分解透视图，所述包装支座用于支撑眼科镜片包装1的基部2，其中覆盖膜3被安排在所述基部上(覆盖膜3未在图2中示出)。包装支座9可以用于将覆盖膜3热结合至基部2，但不限于仅用于结合操作，而是可以用于在包装过程中的额外操作。包装支座9具有包括多个支撑结构11(在所示实施例中示出了五个这样的支撑结构11)的上表面10，每个支撑结构具有支撑结构上表面12。支撑结构上表面12的形状基本上对应于结合区域7的形状。因此，支撑结构上表面12以类似于结合区域7的形状的形状完全围绕基部2的凹陷4(一旦基部被置于包装支座9上)。支撑结构11限定腔体13，所述腔体允许容纳基部2的凹陷4。腔体13是足够宽且深的，使得基部2的凹陷4既不被支撑结构11的任何部分支撑，也不被包装支座9的上表面10的任何其他部分支撑，而是基部2仅被凸缘8的一部分支撑。
凹槽14被安排在支撑结构上表面12中以便部分地容纳并且固定地安装柔性支撑元件，所述柔性支撑元件被实施为弹性环18，如将在下文中更详细描述的。凹槽14并不完全地而是仅基本上完全沿支撑结构上表面12在周向方向上延伸。由于凹槽14仅基本上完全沿支撑结构上表面12延伸，所以凹槽14具有第一末端15和第二末端16，其中在第一末端15与第二末端16之间形成连接板17。弹性环18具有用于容纳连接板17的对应间隙23(参见图3、图4)。
图3至图7示出了已经在图2中示出的弹性环18的实施例。环18包括上部21下部20，其中下部20的宽度小于上部21的宽度。
如从图4中最佳可见的，该图示出了弹性环18沿图3的线IV-IV截取的截面视图，当沿周向方向观察时，弹性环18的上部21具有连续的平坦的顶表面19，所述顶表面形成用于支撑基部2的支撑区域(或更确切地，用于支撑基部2的凸缘8的一部分)。弹性环18的下部20包括上述用于容纳支撑结构上表面12的连接板17的间隙23(参见图3、图4、以及图5)、并且进一步包括多个固定销22。这些固定销22在图4和图6中最佳可见，其中图6示出了所述环(穿过所述固定销22)沿图3中的线VI-VI截取的截面，而图7示出了沿线VII-VII截取的截面(未穿过所述固定销22)。显然，在安排有固定销22的位置处，当与未安排这种固定销22的弹性环18的下部20的其余部分相比时，弹性环18的下部20具有增大的厚度。如在图4中最佳可见的，固定销22沿环18的下部在周向方向上被等距地间隔开。
为了将弹性环18安装至包装支座9的上支撑结构11，固定销22和下部20被插入被安排在支撑结构上表面12中的凹槽14中。弹性环18的下部20在未安排固定销22的位置处的宽度可以略微小于凹槽14的宽度以允许下部20轻松地插入凹槽14中。在安排有固定销22的位置处，下部的宽度、包括固定销的宽度可以略微大于凹槽14的宽度，使得固定销22必须被按压进凹槽14中。将弹性环18以上述方式安装至被安排在支撑结构上表面12中的凹槽14导致弹性环18被固定地安装至支撑结构11，并且因此被固定地安装至包装支座9。弹性环18的上部21的宽度大于下部的宽度(甚至包括固定销22)、并且延伸跨过凹槽14并且在形成凹槽14边界的侧壁的上表面12上方延伸，使得上部21的下表面可以搁置在形成凹槽14边界的侧壁的上表面12上。不言而喻，弹性环18被安装至凹槽14，其方式为使得间隙23被安排成用于容纳支撑结构上表面12的连接板17。在被安装至凹槽12之后，弹性环18具有类似于结合区域7或者与其相同的形状(当从上或从下观察时)。
柔性支撑元件18的上部21的厚度(高度)被选择成使得(考虑到制成弹性环18的材料的弹性、弹性环18的几何结构、以及在结合过程中所施加的力和压力)上部21总是仅被部分地压缩，使得基部2的凸缘8的搁置在弹性环18的上部21的平坦的顶表面19上的那个部分总是保持被弹性环18的上部21支撑、并且从不被支撑结构上表面12直接支撑。
包括支撑结构11(然而，不包括弹性环18)的包装支座9可以由刚性材料制成，例如由比如耐蚀钢或耐蚀铝等耐腐蚀金属制成。例如，弹性环18可以由硅树脂制成。
为了将覆盖膜3结合至基部2，例如五个基部2被置于包装支座9的对应五个支撑结构11上，其中弹性环18被安排在相应的支撑结构上表面12的凹槽14中的每一个中，如图2中针对一个基部和一个支撑结构11所示。其后，一个软性接触镜片5(参见图1)被置于五个基部2的凹陷4中的每一个中，并且预定量的储存和/或保存溶液(例如盐水)被分配进五个凹陷4中的每一个中。然后，覆盖膜3的预切割的连续的条带被安排在基部2上使得覆盖膜3的条带覆盖五个基部2，如图8所示(包装支座未示出)。然而，在那时覆盖膜3的条带还未被结合至基部2。安排在包装支座9上的基部2和覆盖膜3的条带的布置随后被运送至结合工位(例如，热封工位)。
在热封工位中，对应数量的五个密封头30被安排在包装支座9上方，其中基部2和覆盖膜3的条带被安排在所述包装支座上，如图9所示。在图9中，由于包装支座9在垂直于纸面的方向上被输送，所以，虽然示出了用于输送包装支座9的多个轨道，但是每个轨道仅有一个密封头30在图9中被示出。密封头30中的每一个包括可加热的接触板31，所述可加热的接触板具有形状与结合区域7相对应的接触表面32，如在图10中最佳可见的，其中接触表面32面向被安排在基部2上的覆盖膜3的条带。
返回图9，为了将覆盖膜3的条带结合至基部2(此处：热封)，包装支座9携带具有安排在其上的覆盖膜3的条带的基部2被提升朝向被安排在五个密封头30中的可加热的接触板31，直到五个基部2中的每一个以预定的力或压力被按压在相应的密封头30的可加热的接触板31的接触表面32(参见图9的左半边)上，其中在升起位置中示出了不同的轨道的包装支座9。相应的可加热的接触板31的接触表面32和相应的弹性环18的上部21的平坦的顶表面19(即用于基部2的支撑区域)彼此、并且与结合区域7轴向地对齐并且在形状上相对应。因此，在基部2中的任何一个都没有均匀地搁置在弹性环18的上部21的相应的平坦的顶表面19上的情况下，在被按压在相应的加热板31的接触表面32上时，由于其弹性，弹性环18在那些压力比在其他位置大的位置处被压缩，直到压力沿结合区域7被均匀地分布。覆盖膜3因而以沿结合区域7的均匀压力分布被热封至每个单独的基部2，因而导致覆盖膜3沿相应的结合区域7被非常均匀地密封至相应单独的基部2。因此，在一方面，即使在经减小的机械力或经减小的机械压力下也可以实现将覆盖膜3极好地接合到基部2，同时，将已结合的覆盖膜3从基部上剥离所需的剥离力在消费者可以方便地进行覆盖膜的剥离的范围内。
如果覆盖膜3的预切割的条带是如图8所示的覆盖膜3的连续的条带，则结果是五个热封的接触镜片包装的连续的条带。当然，还可以将单独的预切割的覆盖膜3放置在每个单独的基部2上以获得单独热封的接触镜片包装。
本发明的实施例已经借助于附图进行了说明。然而，显然在不脱离本发明的教导的情况下可以想到各种改变、修改和替换。因此，本发明并不旨在限于所描述的实施例，而是通过所附权利要求的范围来限定。

Claims (8)

1.一种用于将眼科镜片包装(1)的覆盖膜(3)与所述眼科镜片包装(1)的基部(2)热结合在一起的方法，所述方法包括以下步骤：
-提供支撑所述基部(2)和所述覆盖膜(3)的包装支座(9)，所述覆盖膜(3)布置在所述基部(2)上，所述基部包括用于装盛眼科镜片(5)的凹陷(4)；
-将所述覆盖膜(3)和所述基部(2)沿结合区域(7)机械地按压在一起同时向所述结合区域(7)施加热量，所述结合区域具有完全围合所述凹陷(4)的形状，由此将所述覆盖膜(3)与所述基部(2)沿所述结合区域(7)热结合在一起；
其特征在于，提供支撑所述基部(2)的所述包装支座(9)的步骤包括：在所述包装支座(9)的上表面(10)上布置柔性支撑元件以形成支撑所述基部(2)的支撑区域(19)，所述支撑区域(19)在形状上与所述结合区域(7)相对应并且被布置成与所述结合区域对齐，
并且其中，所述柔性支撑元件具有比所述基部(2)的柔性更高的柔性，
所述柔性支撑元件是环(18)，
所述环(18)包括下部(20)和上部(21)，所述上部(21)具有比所述下部(20)的宽度更大的宽度，并且其中，所述上部(21)具有形成所述支撑区域(19)的连续的顶表面，
所述环(18)包括形成在所述环(18)的下部(20)的固定销(22)，
所述包装支座(9)的上表面(10)包括支撑结构(11)，所述支撑结构具有在形状上与所述结合区域(7)的形状相对应的支撑结构上表面(12)、并且具有在所述支撑结构上表面(12)中的凹槽(14)，其中所述环(18)的下部(20)被布置在所述凹槽(14)中，并且其中所述环(18)的上部(21)从所述支撑结构上表面(12)突出，
所述凹槽(14)沿所述支撑结构上表面(12)延伸，使得所述凹槽(14)具有第一末端(15)和第二末端(16)以在所述凹槽(14)的所述第一末端(15)与所述第二末端(16)之间形成连接部(17)，并且其中，被布置在所述凹槽(14)中的所述环(18)的下部(20)具有容纳所述连接部(17)的间隙(23)。
2.根据权利要求1所述的方法，其中，将所述覆盖膜(3)与所述基部(2)沿所述结合区域(7)机械地按压在一起同时向所述结合区域(7)施加热量的步骤包括：
-提供可加热的接触板(31)，所述可加热的接触板具有在形状上与所述结合区域(7)相对应的接触表面(32)，并且
-将所述包装支座(9)朝向所述可加热的接触板(31)移动或者将所述可加热的接触板(31)朝向所述包装支座(9)移动，直到预定的结合力以及热量通过所述接触表面被施加至所述结合区域(7)。
3.根据权利要求2所述的方法，其中，所述预定的结合力小于650N，并且其中，所述接触表面处的温度能够在190℃至210℃的范围内选择。
4.根据权利要求1所述的方法，其中，所述基部(2)由塑料制成。
5.根据权利要求1所述的方法，其中，所述柔性支撑元件由弹性材料制成，所述弹性材料具有比制成所述基部(2)的材料的弹性更大的弹性。
6.根据权利要求5所述的方法，其中，所述弹性材料是硅树脂。
7.根据权利要求1所述的方法，其中，所述固定销(22)沿所述环(18)的下部(20)等间距地布置。
8.一种包装支座(9)，所述包装支座用于支撑眼科镜片包装(1)的基部(2)以及所述眼科镜片包装(1)的布置在所述基部(2)上的覆盖膜(3)，所述包装支座(9)包括：
-包括支撑结构(11)的上表面(10)，所述支撑结构具有支撑结构上表面(12)，所述支撑结构上表面中具有凹槽(14)；
其特征在于，所述包装支座还包括：
-由弹性材料制成的环(18)，所述弹性材料具有比待被支撑的所述基部(2)的材料的弹性更大的弹性，
所述环(18)包括上部(21)和下部(20)，其中所述环(18)的下部(20)被布置在所述支撑结构上表面(12)中的所述凹槽(14)中，并且其中所述环(18)的上部(21)从所述支撑结构上表面(12)突出，所述环(18)的上部(21)具有比所述下部(20)的宽度更大的宽度，所述环(18)的上部(21)具有连续的顶表面，所述连续的顶表面形成支撑区域(19)以支撑所述眼科镜片包装(1)的所述基部(2)，并且
其中，所述包装支座(9)的上表面(10)的所述支撑结构(11)被成形为限定腔体(13)，所述腔体用于容纳所述眼科镜片包装(1)的所述基部(2)的凹陷(4)，
其中，所述环(18)包括形成在所述环(18)的下部(20)的固定销(22)，
其中，所述凹槽(14)沿所述支撑结构上表面(12)延伸，使得所述凹槽(14)具有第一末端(15)和第二末端(16)以在所述凹槽(14)的所述第一末端(15)与所述第二末端(16)之间形成连接部(17)，并且其中，被布置在所述凹槽(14)中的所述环(18)的下部(20)具有容纳所述连接部(17)的间隙(23)。
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