CN1842408A - 容器及其制造方法和设备 - Google Patents

容器及其制造方法和设备 Download PDF

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Publication number
CN1842408A
CN1842408A CNA2004800068653A CN200480006865A CN1842408A CN 1842408 A CN1842408 A CN 1842408A CN A2004800068653 A CNA2004800068653 A CN A2004800068653A CN 200480006865 A CN200480006865 A CN 200480006865A CN 1842408 A CN1842408 A CN 1842408A
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CN
China
Prior art keywords
container
flange
diameter
cavity
sidewall
Prior art date
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Pending
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CNA2004800068653A
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English (en)
Inventor
查尔斯·乔纳森·布里顿
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Individual
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Individual
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Publication of CN1842408A publication Critical patent/CN1842408A/zh
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    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
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    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
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Abstract

在两阶段过程中制造了一种容器(1)，具有主体和界定了容器开口的凸缘(3)，容器由例如PET或PEN材料制成。第一阶段包括注塑成型预成型品(15)，预成型品具有在其开口部分形成的凸缘(3)和连续的主体形成部分(32)，主体形成部分(32)从凸缘的内圆周(19)穿过预成型品延伸，凸缘具有向外导引的范围并且包括从内圆周向外分隔开的向下延伸的部分(21)和位于向下延伸的部分的外部的向外延伸的部分(5，6，29)。在第二阶段中，预成型品在高温下被放入吹塑设备(7)的模腔(56)中，且预成型品通过凸缘(3)进行定位。主体形成部分在空腔中膨胀，从而形成容器侧壁(20)和底壁(2)。侧壁的上侧区域(18)与凸缘的向下延伸的部分(21)接触，从而形成箱形部分(25)。侧壁(20)在其上部区域中具有台阶(23)，在台阶上方，空腔的直径大体上等于或接近凸缘的向下延伸的部分(21)的直径。在台阶(23)下方，直径小于凸缘的内圆周的直径并且从台阶向内向下朝底壁(2)以锐角逐渐变细，从而容器就可以嵌套。

Description

容器及其制造方法和设备
技术领域
本发明涉及从塑料材料中模制的容器以及制造这种容器的方法和设备。
本发明尤其适用于使用聚对苯二甲酸乙二醇酯(PET)制造容器，容器在本质上为罐或壶，且优选地具有盖子，不过它并不局限于这种制造。PET尤其适合存储溶剂基物品，但是它是一种很难在制造中使用的材料。
背景技术
可以理解，人们希望生产使用最少量塑料材料而又足够坚固足以供常规使用的PET容器，它在倒空进行运输时占据最小的空间，并且可以很容易地单独处理和使用。当装配有盖子时，容器应该很容易地堆叠并且可以很容易地打开。这种容器可以制造成具有多种尺寸，尤其是在250毫升至5升或1/2品脱至1加仑的范围内。
本发明人的国际专利申请WO97/19801中描述了一种使用两阶段过程制造容器的方法。在第一阶段中，通过注塑成型形成胚体容器。在该阶段，凸缘基本上完全形成，但是主体仍未形成，并且胚体容器壁采用了从凸缘的内圆周向内延伸的中央管的形式。胚体容器然后被转移至吹塑机并且所述壁向外膨胀从而形成容器主体。本发明人的国际专利申请WO00/46118描述了具有更复杂凸缘结构的容器。
用于容器制造的其它现有提议包括日本公开未审的专利申请昭57-77439(授予Holt的美国专利4,367,821)和国际专利申请WO99/28196(授予Koda的美国专利6,179,158)。
发明内容
本发明的各个方面界定在下面的独立权利要求中，现在即可参考独立权利要求。在从属权利要求中提出了有利的特征。
下面参照附图更详细地描述了本发明的优选实施例。优选实施例采用了容器的形式，容器具有主体和界定了容器开口的凸缘，容器由在加热时容易变形的材料制成。容器在两阶段过程中进行制造。第一阶段包括在注塑设备中注塑成型预成型品，预成型品具有在其开口部分形成的凸缘和连续的主体形成部分，主体形成部分从凸缘的内圆周穿过预成型品延伸，凸缘具有向外导引的范围并且包括从内圆周向外分隔开的向下延伸的部分和位于向下延伸的部分外部的向外延伸的部分。
在第二阶段中，预成型品在高温下被放入吹塑设备的模腔中，且预成型品通过凸缘进行定位。主体形成部分在空腔中膨胀，从而形成容器侧壁和底壁。侧壁的上部区域与凸缘的向下延伸的部分接触，从而形成箱形部分。主体形成部分的剩余部分与空腔的侧面接触，从而形成容器的侧壁和底壁。
在第一实施例中，侧壁在其上部侧面区域中具有变窄的台阶形式的侧面区域，在台阶上方，空腔的直径大体上等于或接近凸缘的向下延伸的部分的直径。在台阶下面，直径小于凸缘的内圆周的直径从台阶向内向下地朝底壁以锐角逐渐变细，从而容器就可以内部嵌套。
在第二实施例中，在变窄的侧面区域上方，容器形成有向外延伸的外部肋，容器的直径在外部肋区域相对迅速地变宽，从而接近向下延伸的部分的直径。
容器优选地配设有与凸缘的上表面相符的盖子。盖子密封地与容器的凸缘接合并且包括两个密封元件，一个位于顶部，另一个在盖子上与凸缘接合的部分一侧。可以在盖子的一侧配设挡板来辅助盖子的移除。
附图说明
现在将参照附图以实例的形式更加详细地描述本发明，其中：
图1是通过具体表达本发明的第一容器的侧面剖视图；
图2是通过图1中容器的凸缘的剖面详图；
图3显示了三个嵌套的容器，图的左侧部分以剖视图显示，右侧部分以侧视图显示；
图4是通过在图1中容器的制造中使用的注塑成型预成型品的侧面剖视图；
图5是通过注塑成型机的剖视图，显示了预成型品的制造；
图6是通过吹塑机的剖视图，显示了容器从预成型品形成的初始阶段；
图7是与图6类似的视图，显示了吹塑操作结束时的情形；
图8是与图1类似的剖视图，显示了图1中的容器装配了盖子时的情形；
图9是通过图8中的容器的凸缘和盖子的剖面详图；
图10是盖子的侧面剖视图；
图11是盖子凸缘的剖面详图；
图12是显示具有向下延伸挡板的可选抓持的剖面详图；
图13是挡板区域的侧视图；
图14是带有盖子的容器的平面的详图，显示了可选的肋；
图15显示了可选择的结构，其中挡板容纳在容器壁中的凹槽内；
图16是具体表达本发明的具有盖子的第二容器的侧视图；
图17是图16中容器盖子的平面图；并且
图18是通过图16中容器和盖子的侧面剖视图。
具体实施方式
现在将参照附图描述本发明的第一实施例。图1是通过成品容器1的侧面剖视图。容器通常为具有侧壁20和底壁2的圆柱形形状。底壁具有凹的中央部从而提供附加的强度。界定了容器开口部分的容器凸缘3从其内圆周19开始，具有倒置的U形部分4，然后是V形槽5，并且最后是倒置的V形部分6。因此凸缘大体上从内圆周19向外延伸。所有这一切均更清楚地显示于图2中。V形槽5与从所述槽的底部向下的延伸的部分21一起形成向下延伸的部分。容器的侧壁20的上部区域22与该向下延伸的部分21接触，从而形成箱形部分25。这会充分地增大凸缘的强度。倒置的V形部分6然后从向下延伸的部分21进一步向外延伸，在悬垂的突边29处达到顶点。
在容器的侧壁20下方大约15-20％处是台阶23，在此处侧壁的直径突然变窄。在台阶上方的侧壁区域18为圆柱形并且具有与向下延伸的部分21的直径大体上相同的直径。台阶下方的侧壁区域24的直径略微小于凸缘的内圆周19的直径，并且侧壁区域从台阶向内向下地以7到11度的锐角逐渐变细。使用这种结构，如图1中所示的容器就可以在内部嵌套相同的容器。在嵌套时，如图3所示，一个容器的台阶23抵靠在下面容器的凸缘3上。然而，容器很容易就可以分开。这是由于突边29摆脱了侧壁部分18而延伸，因此使各个容器能够很容易地夹持，并且因为台阶23紧靠下面容器的凸缘3，由此容器不能与其锥形部分过于紧密地接合。
然而，由于所使用的材料的厚度的原因，容器具有相对坚固的结构。强度源于包括箱形部分25的凸缘结构，并且源于台阶区域23的存在，其中台阶区域23向容器侧壁的上部施加强度。
强度可以通过使用垂直加强肋进行增强。通常可以包括围绕容器等间隔分布的八个肋32。这种肋的存在可以通过在图1和图2中交叉阴影示出。肋可以穿过箱形部分25和/或填充倒置的V形部6。
现在将描述图1中容器的制造方法。制造方法建立在本发明人的国际专利申请W097/19801的基础之上。凸缘的形状是本发明人的国际专利申请WO00/46118中所述凸缘的进一步发展。对于更多详图和与设计有关的变化，可以参见这两篇申请。
方法中的第一阶段是形成如图4中所示的预成型品15。预成型品在其最终形式中具有凸缘3，且带有内圆周19、倒置的U形部4、V形槽5、向下延伸的部分21、倒置的V形部6和突边29。如果存在肋32的话，也会在此时形成。然而容器主体的侧壁20并非在此时形成，而是预成型品包括连续的盘形或碗形主体形成件32，主体形成件32从凸缘的内圆周19延伸穿过预成型品，但是它的尺寸与其最终尺寸相比要小一些。该部件32的形状可以为任意的，从接近扁平的膜到大体上为管形。在图4中所示的剖面中，部件32所采用的形状大约为三分之一圆的圆弧。
预成型品15是通过在注塑成型机40上注塑成型形成的，如图5中所示。注塑成型机具有两个主要部分，即由空腔插入物42形成的较低部分和由内部预成型品销44和外部预成型品部分46组成的较高部分。还在机械转盘52上提供了由颈部分界面(split)承板50支撑的颈部分界面48。塑料材料在预成型品15底部中心处通过空腔插入物42中的喷射孔54注入。注塑成型设备是很公知的并且因此在此无需给出此类设备的详细说明。然而，应当指出，预成型品的凸缘完全在该操作中形成并且会采用最终的容器所需的形状。预成型品的主体形成部分32从凸缘的内圆周上悬垂下来。预成型品设计成中央模芯(预成型品销44和部分46)的直接的垂直运动可以允许将预成型品从模具中移除。无论是在芯部还是空腔的结构中都没有底切(undercuts)或滑块。注塑成型的使用允许高精度地形成凸缘，这对于盖子的良好密封是必需的。
应当指出，在该说明书中，假定预成型品和最终的容器位于传统的朝向中，即嘴在顶部并且底壁在底部。因此术语“上”和“下”及其派生词应该以这种感觉进行解释，尽管实际上预成型品或容器的朝向可以与此不同。
预成型品现在就从注塑成型机移到吹塑机。吹塑机的类型为压力成型机(pressure molding)；较差优选的可选方案是运用使用抽吸而非吹塑的机器。预成型品转移至吹塑机7，如图6所示，此时它仍然是热的并且易于弯曲。如果它已经冷却，那么它就会重新加热从而易于弯曲。吹塑机7具有空腔56，空腔56在侧面由两个可移动的半模具(mould halve)11和12界定，而在底部由可移动的底壁或平底13界定。空腔的顶部由圆形顶板8界定，顶板8支撑着沿轴向垂直移动的杆9。杆9可以降低到预成型品15的开口顶部中，从而与预成型品的侧面10接合。当它下降时，它会导致容器壁向下方的机械伸展。杆9具有中空的中心58，它允许压缩空气通过杆底部附近的带有角度的孔17传送到预成型品上方的空腔中。杆9还具有圆周通道60，它允许压缩空气进入径向通道16中，径向通道16在容器侧壁20顶部附近的空腔顶部处开口。
凸缘3在吹塑模中被稳固地夹持。更特别地，V形槽5和倒置的V形槽6由半模具支撑，尽管在此情形中，最外部的槽6仅仅部分地被支撑。槽6的剩余部分被配合到连续的金属环14中，金属环14分成两半，这样它就可以在随后摆脱吹塑模7而提起加工完毕的模制件。金属环14或颈部分界面支撑在颈部分界面承板64上。
因此次序为首先在高温下，两个半吹塑模具11、12和金属环14围绕易弯预成型品15闭合。圆形顶板8降低到模具之上，在此它接触内部U形槽4的外部。然后伸展杆9降低，从而朝着模腔56的底壁13向构成容器壁的材料32施加压力。同时，压缩空气导入中空的中心58和伸展杆9的通道60中。压缩空气出现在顶部上的孔16中和底部中的带角度的孔17中。位于顶部的孔16比位于底部的那些孔17要更大一些并且还靠近压缩空气源。这就导致位于预成型品顶部处的塑料材料向外移动直至它接触吹塑模腔的侧面，当它这样做时会覆盖倒置的U形4的底壁。这因此形成较大直径部分分18以及箱形部分25，后者由压在向下延伸的部分21上的容器的侧壁形成从而完成箱形部分形状。
当压缩空气继续吹动时，它还出现在杆9下端的孔17处，并且现在通过将预成型品的仍然较软的塑料材料紧密压靠在吹塑模的金属侧面而形成。这继续由伸展杆9导致的机械增强辅助完成。图7中显示了处于吹塑机中的完全形成的容器。
模腔56的形状可以使容器壁20具有期望的形状。因此空腔56在侧壁向下大约五分之一或六分之一处具有狭窄的侧壁部分或台阶66。在台阶66上方，空腔的直径大约与预成型品15在适当地放置在模腔中时其凸缘3的向下延伸的部分21的直径相同。在台阶66下方，直径小于预成型品在适当地放置在模腔中时其凸缘3的内圆周19的直径。从空腔进一步下降，空腔井以7到11度的锐角向内呈锥形，直至它到达空腔的底壁。
一旦材料已经冷却并且固化，吹塑模具就会打开并且容器被提起。容器通过凸缘3提出来，并且这可以通过模具环得以简化，模具环形成并且接合凸缘3外表面上的底切28(见图2)，这些环自身分成两半以释放产品。
容器1优选地装配有盖子26，如图8和9所示。盖子26在主中央部分是扁平的，但是它的形状设计成在其圆周附近与容器1的凸缘3的上表面相符。为此，盖子26首先具有脊70，脊70在U形部分4，即现在形成箱形部分25的顶部上与之相符，然后具有向下延伸的楔形27，且楔形与V形槽5配合。然而，因为材料的刚性本质，所以楔形27和V形槽5之间的两个联锁锥形将不再夹持闭合物或盖子26，而盖子26将由于V形槽的径向压缩力，将逐渐从密封面中提起。
因此，如图9所示，盖子26由向下延伸的突边72保持在容器1上，向下延伸的凸缘72从盖子的圆周上悬垂下来并且在倒置的V形槽6的区域中符合凸缘的上部外表面。突边72因此围绕着突边29装配。突边72还支撑着棘爪，棘爪在其内表面上的形式为面向内的肋74。该面向内部的肋74与底切28接合，而底切28形成于形成配套棘爪的注塑成型机上。在紧接着底切28的上方，盖子外突边72的内径小于突边29的外径。
因此通过彼此成90度角度的两个密封结构的组合而实现了密封，这两个结构即一方面为楔形27和V形槽5，另一方面为肋74和底切28。
图10和11显示了盖子本身的剖视图。
为了易于盖子的释放和移走，可以配设挡板35，如图12至15所示。如图12中最佳显示的那样，挡板从突边72的圆周上由外部肋37标识的选取点处向下延伸。挡板在36处铰接。挡板的较低的向外弯曲部分可以通过下面的方式接近：在它下方插入使用者的手指，并且在挡板变为铰接杠杆处沿向上方向拉动它。由肋37限制了它不能移动超过与容器成90度，即位于水平线上方。挡板35的进一步的向上运动会导致盖子的外突边72从凸缘的突边29的下侧脱离。这就允许通过从容器1的突边29上剥离突边72而移除盖子。图13显示了挡板35所在区域的侧视图并且图14显示了其顶视图。
图15中显示了可选的配置，其中挡板或手柄35较大并且具有部分38，且部分38在容器顶部附近装配到凹槽39中。
挡板可以配置成具有“显示拆封”膜，该膜可以在打开容器之前在视觉上显示它已经被使用。
图1中的容器在顶部内表面处形成有箱形部分25，它提供了结构强度并且允许在容器上的楔形27和V形槽之间形成较大的环向应力。强度还通过台阶23和台阶下面到容器底壁的锥形而得到进一步的增强。
容器可以进行内部嵌套，如图3所示，其中显示了三个内部嵌套的容器。每个容器在放置时其台阶23都落在它下面的容器凸缘3的上表面上。因此锥形部分的外部不能过于紧密地楔在它下方容器的锥形部分的内部。容器的分离还由于凸缘外部向容器外部延伸这一事实而更加容易，凸缘外部向容器外部延伸使得使用者易于抓紧两个相邻堆叠的容器从而将它们分开。
因此，通过赋予环强度的箱结构和向主体提供强度的台阶和锥形而台阶又允许一个容器抵靠在另一个容器的凸缘上的配合作用，可以提供具有足够强度、能够进行嵌套并且易于分离的有利特征，而又使用最少的塑料材料。易于分离是由凸缘的向外延伸的部分使用其向下延伸的圆周突边辅助实现的，突边易于手动抓握在容器上用于分离。
容器优选地由聚对苯二甲酸乙二醇酯(PET)制造，因为它尤其适合该工艺过程。然而，也可以使用其它热塑性树脂，其中包括聚对叙二甲酸乙二醇酯(PEN)，并且可以使用PET和PEN的混合物，这种混合物可以是这两种材料的晶体和非晶结构。而且，也可以使用包括聚氯乙烯(PVC)、聚碳酸酯、丙烯酸在内的硬质塑料和包括聚丙烯在内的不同的聚烯烃，以及高密度和低密度聚乙烯。原则上，可以使用所有在加热时容易变形的材料，但是该方法尤其适用于使用PET等。
容器可以形成桶、勺斗或罐，并且尤其适用于封装溶剂基物品，用于长期存放而不会有溶剂损失。特别地，它们可以用作用于油漆或其它涂料的罐。容器自身形成整体式元件而不需要进行焊接，焊接费用高并且不可靠。容器可以由PET精确地形成，它需要吹塑成型从而给予最佳强度所需的双轴伸展。尽管具有合理地较窄的锥形，但是容器进行嵌套而不会阻塞。最后，容器可以重复地重新密封并且可以再次打开而不需要特殊的工具。
图16至18中显示了本发明的第二实施例。该实施例类似于第一实施例并且因此将仅仅描述差别。
在第二实施例中，第一实施例中台阶23和容器侧壁的上部分18替换为具有外部肋82的显著锥形部分80。因此，在肋区域中，容器的直径相对迅速地变宽，从而接近向下延伸的部分的直径。外部肋具有水平的较低的圆周，这样在嵌套时，肋位于下面容器的凸缘的顶部上，从而再次防止阻塞。在其它方面，容器与第一实施例中的容器相同。
虽然已经使用实例描述和显示了本发明的优选实施例，但是可以对所述方法、设备和容器进行许多改进。

Claims (43)

1.一种容器，具有主体和界定了容器开口的凸缘，所述容器由在加热时容易变形的材料制成，所述容器包括：
在容器开口部分处形成的凸缘，凸缘具有向外导引的范围并且包括从内圆周向外分隔开的向下延伸的部分和位于向下延伸的部分外部的向外延伸的部分；
容器侧壁和底壁，侧壁的上部区域与凸缘的向下延伸的部分接触；
其特征在于，
侧壁的上部区域与凸缘的向下延伸的部分接触，从而形成箱形部分；并且
容器的侧壁在其上侧区域中具有变窄的侧壁部分，在该侧壁部分上方，侧壁的直径大体上等于或接近凸缘的向下延伸的部分的直径，并且在该侧壁部分下方，直径小于凸缘的内圆周的直径从侧壁部分向内向下地朝底壁以锐角逐渐变细，从而容器就可以内部嵌套。
2.如权利要求1所述的容器，其特征在于，容器材料包括聚对苯二甲酸乙二醇酯(PET)、聚对荼二甲酸乙二酯(PEN)或PET和PEN的混合物。
3.如权利要求1所述的容器，其特征在于，凸缘具有沿径向超出向下延伸的部分的向外延伸的部分。
4.如权利要求3所述的容器，其特征在于，向外延伸的部分具有圆周突边从而有助于在与另一个相似容器嵌套时对容器进行手动夹持。
5.如权利要求1所述的容器，其特征在于，凸缘沿径向具有内部倒置的U形部分，然后是V形槽，最后是倒置的V形部分。
6.如权利要求5所述的容器，其特征在于，向下延伸的部分从V形槽向下延伸。
7.如权利要求1所述的容器，其特征在于，所述锐角在7和11度之间。
8.如权利要求1所述的容器，其特征在于，还包括围绕容器凸缘的圆周分隔开的沿径向延伸的加强肋。
9.如权利要求1所述的容器，其特征在于，变窄的侧面区域包括台阶，在台阶上方侧壁的直径大体上是不变的。
10.如权利要求1所述的容器，其特征在于，在变窄的侧面区域上方，容器形成有向外延伸的外部肋，容器的直径在外部肋区域中相对迅速地变宽，从而接近向下延伸的部分的直径。
11.如权利要求1所述的容器，还包括用于容器的盖子，盖子与凸缘的上表面相符。
12.如权利要求11所述的容器，其特征在于，盖子密封地与容器的凸缘接合并且包括两个密封元件，一个位于顶部，另一个在盖子上与凸缘接合的部分一侧。
13.如权利要求11所述的容器，包括位于盖子一侧用于辅助其移除的挡板。
14.一种制造容器的方法，所述容器具有主体和界定了容器开口的凸缘，容器由在加热时容易变形的材料制成，所述方法包括下列步骤：
在注塑设备中注塑成型预成型品，预成型品具有在其开口部分形成的凸缘和连续的主体形成部分，主体形成部分从凸缘的内圆周穿过预成型品延伸，凸缘具有向外导引的范围并且包括从内圆周向外分隔开的向下延伸的部分和位于向下延伸的部分的外部的向外延伸的部分；
将预成型品在高温下放入压力成型设备的模腔中，且预成型品通过凸缘进行定位；并且
在压力成型设备中向下和向外移动主体形成部分，从而主体形成部分在空腔中膨胀，以形成侧壁和底壁，侧壁的上部区域与凸缘的向下延伸的部分接触，并且主体形成部分的剩余部分与空腔的侧面接触从而形成由空腔的内部形状界定的形状；
其特征在于，
侧壁的上部区域与凸缘的向下延伸的部分接触，从而形成箱形部分；并且
压力成型设备的模腔的内部的形状设计成界定容器的侧壁和底壁，且空腔在其上侧区域中具有变窄的侧壁部分，在该侧壁部分上方，空腔的直径大体上等于或接近凸缘的向下延伸的部分的直径，并且在该侧壁部分下方，直径小于凸缘的内圆周的直径从侧壁部分向内向下地朝底壁以锐角逐渐变细，从而所生成的容器就可以内部嵌套。
15.如权利要求14所述的方法，其特征在于，容器材料包括聚对苯二甲酸乙二醇酯(PET)、聚二甲酸乙二醇酯(PEN)或PET和PEN的混合物。
16.如权利要求14所述的方法，其特征在于，注塑成型台阶形成凸缘，所述凸缘具有沿径向延伸超过向下延伸的部分的向外延伸的部分。
17.如权利要求16所述的方法，其特征在于，向外延伸的部分具有圆周突边从而有助于在与另一个相似容器嵌套时对容器进行手动夹持。
18.如权利要求14所述的方法，其特征在于，注塑成型台阶形成凸缘，所述凸缘沿径向具有内部倒置的U形部分，然后是V形槽，最后是倒置的V形部分。
19.如权利要求18所述的方法，其特征在于，向下延伸的部分从V形槽向下延伸。
20.如权利要求14所述的方法，其特征在于，所述锐角在7和11度之间。
21.如权利要求14所述的方法，其特征在于，还包括围绕容器凸缘的圆周分隔开的沿径向延伸的加强肋。
22.如权利要求14所述的方法，其特征在于，压力成型设备的空腔的形状设计成变窄侧面区域包括台阶，在台阶上方，空腔的直径大体上是不变的。
23.如权利要求14所述的方法，其特征在于，压力成型设备的空腔的形状设计成，在变窄的侧面区域上方，容器形成有向外延伸的外部肋，容器的直径在外部肋附近相对迅速地变宽，从而接近向下延伸的部分的直径。
24.如权利要求14所述的方法，其特征在于，压力成型设备是吹塑设备。
25.如权利要求14所述的方法，其特征在于，移动主体形成部分的步骤是通过主体形成部分在压力成型设备中的机械延伸辅助实现的。
26.如权利要求14所述的方法，还包括提供用于容器的盖子的步骤，盖子与凸缘的上表面相符。
27.如权利要求26所述的方法，其特征在于，盖子密封地与容器的凸缘接合并且包括两个密封元件，一个位于顶部，另一个在盖子上与凸缘接合的部分一侧。
28.如权利要求26所述的方法，包括位于盖子一侧用于辅助其移除的挡板。
29.一种用于制造容器的设备，容器具有主体和界定了用于容器开口的凸缘，容器由在加热时易于变形的材料制成，所述设备包括：
用于注塑成型预成型品的注塑设备，预成型品具有在其开口部分形成的凸缘和连续的主体形成部分，主体形成部分从凸缘的内圆周穿过预成型品延伸，凸缘具有向外导引的范围并且包括从内圆周向外分隔开的向下延伸的部分和位于向下延伸的部分的外部的向外延伸的部分；
具有模腔的压力成型设备；
用于在高温下将预成型品放入压力成型设备的模腔中的装置，且预成型品通过凸缘进行定位；以及
在压力成型设备中用于向下和向外移动主体形成部分的装置，从而主体形成部分在空腔中膨胀，以形成侧壁和底壁，侧壁的上部区域与凸缘的向下延伸的部分接触，并且主体形成部分的剩余部分与空腔的侧面接触从而形成由空腔的内部形状界定的形状；
其特征在于，
空腔的形状设计成，侧壁的上部区域与凸缘的向下延伸的部分接触，从而形成箱形部分；并且
压力成型设备的模腔的内部的形状设计成界定容器的侧壁和底壁，且空腔在其上侧区域中具有变窄的侧壁部分，在该侧壁部分上方，空腔的直径大体上等于或接近凸缘的向下延伸的部分的直径，并且在该侧壁部分下方，直径小于凸缘的内圆周的直径从侧壁部分向内向下地朝底壁以锐角逐渐变细，从而由所述设备制成的容器就可以内部嵌套。
30.如权利要求29所述的设备，其特征在于，注塑成型设备形成凸缘，所述凸缘具有沿径向超过向下延伸的部分的向外延伸的部分。
31.如权利要求30所述的设备，其特征在于，向外延伸的部分包括圆周突边从而有助于在与另一个相似容器嵌套时对容器进行手动夹持。
32.如权利要求29所述的设备，其特征在于，注塑成型设备形成凸缘，所述凸缘沿径向具有内部倒置的U形部分，然后是V形槽，最后是倒置的V形部分。
33.如权利要求32所述的设备，其特征在于，向下延伸的部分从V形槽向下延伸。
34.如权利要求29所述的设备，其特征在于，所述锐角在7和11度之间。
35.如权利要求29所述的设备，其特征在于，注塑成型设备的形状还设计成围绕容器凸缘的圆周分隔开地形成沿径向延伸的加强肋。
36.如权利要求29所述的设备，其特征在于，压力成型设备的空腔的形状设计成变窄侧面区域包括台阶，在台阶上方，空腔的直径大体上是不变的。
37.如权利要求29所述的设备，其特征在于，压力成型设备的空腔的形状设计成，在变窄的侧面区域上方，容器形成有向外延伸的外部肋，容器的直径在外部肋区域中相对迅速地变宽，从而接近向下延伸的部分的直径。
38.如权利要求29所述的设备，其特征在于，压力成型设备是吹塑设备。
39.如权利要求29所述的设备，其特征在于，压力成型设备包括用于机械伸展主体形成部分的装置。
40.如权利要求29所述的设备，还包括用于形成容器所用盖子的装置，盖子与凸缘的上表面相符。
41.如权利要求40所述的设备，其特征在于，盖子密封地与容器的凸缘接合并且包括两个密封元件，一个位于顶部，另一个在盖子上与凸缘接合的部分一侧。
42.如权利要求40所述的设备，包括位于盖子一侧用于辅助其移除的挡板。
43.一种使用如权利要求14所述方法制造的容器。
CNA2004800068653A 2003-02-12 2004-02-12 容器及其制造方法和设备 Pending CN1842408A (zh)

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CN103963211A (zh) * 2012-12-26 2014-08-06 全耐塑料公司 用于制造废品收集容器桶的注塑方法及实施该方法的模具
CN103963211B (zh) * 2012-12-26 2017-05-03 全耐塑料公司 用于制造废品收集容器桶的注塑方法及实施该方法的模具
CN107718514A (zh) * 2013-10-15 2018-02-23 日精Asb机械株式会社 预成形品处置装置及吹塑成形装置
CN112166077A (zh) * 2018-05-28 2021-01-01 罗盖特公司 包括具有恒定堆叠节距的塑料容器的包装件
CN113840780A (zh) * 2019-05-16 2021-12-24 凸版印刷株式会社 罩部件、罩部件的制造方法以及纸浆模塑成型用模具
CN113840780B (zh) * 2019-05-16 2023-11-10 凸版印刷株式会社 罩部件的制造方法以及罩部件的纸浆模塑成型用模具

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GB2398267B (en) 2006-10-18
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CA2516099A1 (en) 2004-08-26

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