CN109414897B - 用于以策略性放置的划线生成纸板产品用的面层的系统及方法 - Google Patents

用于以策略性放置的划线生成纸板产品用的面层的系统及方法 Download PDF

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CN109414897B
CN109414897B CN201780037929.3A CN201780037929A CN109414897B CN 109414897 B CN109414897 B CN 109414897B CN 201780037929 A CN201780037929 A CN 201780037929A CN 109414897 B CN109414897 B CN 109414897B
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paperboard
paper
product
grooves
embossing
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CN109414897A (zh
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贾尔斯·格林菲尔德
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Packaging Acquisition First LLC
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Scorrboard LLC
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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

本发明涉及用于生成由具有除介质(有时称为开槽)之外的预刻划面层的纸张产品制成的纸板产品的系统及方法。传统波纹状纸板可具有交叉波纹状介质以及不具被压印的刻划线(至少在用该波纹状介质装配之前)的一个或多个面层。此传统纸板产品可能较差，因为被压印的任何刻划线均会以某种方式损坏下层波纹状介质。当最终纸板产品被刻划、切割及折叠时，该下层介质强度的下降将导致精度变差。折叠纸板产品时缺乏精度会导致间隙变化以及摆尾，因为该纸板产品的任何联接部分在折叠时无法保持精确的联接平面。

Description

用于以策略性放置的划线生成纸板产品用的面层的系统及 方法
技术领域
本公开涉及一种用于生成由纸张产品制成的纸板产品的系统及方法。
背景技术
现代造纸技术在造纸厂使用造纸机生成纸卷，而此纸卷继而可由纸板制造商用于生成纸板产品(即波纹状纸板)。结果，纸卷可由连续操作的机器生成。现代造纸机通常借由许多物质生成纸张，包含包括木纤维的木浆(尽管也可使用其他纤维)。此纤维倾向于伸长且适于彼此相邻地对齐。纤维以可从造纸机的调浆箱进给至移动筛网上的浆料形式开始。在现代造纸机中，纤维倾向于彼此对齐并与筛网在其中移动的方向对齐。下层纤维的此对齐方向称为纸张的主要方向，并与机器方向一致。因此，主要方向通常简称为机器方向(MD)，并且生成的纸张具有相关联的MD值。
当纸张用于制作纸板产品时，纸板产品的部分或层可为波纹状。传统波纹机将在纸张的交叉方向(CD)上使下层纸张产品波纹化，从而无法利用纸张在机器方向上的自然强度偏差。进一步地，纸张在机器方向上的较大自然强度质量在纸板制作解决方案中未被交叉波纹技术所利用。又进一步地，传统波纹状介质包含由于传统波纹辊对中的突起的形状而呈现正弦曲线形状的凹槽。结果，生产传统纸板产品的公司仍深陷限制纸板产品强度的陈旧生产程序中。
发明内容
本公开的目的在于，提供一种新的纸板产品、纸板制作方法及纸板制作机。
本公开的目的是采用以下的技术方案来实现的。依据本公开提出的纸板产品，其包括：具有多个刻划线的面层，在将所述面层与任何其他纸张产品组合之前，所述多个刻划线被压印在纸张中；及凸印介质，所述凸印介质包括一个方向上排列的纤维，所述凸印介质进一步包括各自轴线在该方向上排列的多个凹槽，所述凸印介质耦接至所述面层，使得所述多个刻划线分别相对于所述多个凹槽以平行方式对齐；其中所述多个刻划线与所述多个凹槽分别对齐，使得各刻划线与各凹槽等距。
本公开的目的还可以采用以下的技术措施来进一步实现。
前述的纸板产品，其进一步包括相对于所述凸印介质固定的第二面层。
前述的纸板产品，其中所述第二面层包含多个刻划线，在所述面层与任何其他纸张产品组合之前所述多个刻划线被压印在所述纸张中。
前述的纸板产品，其进一步包括相对于所述面层固定的第二纸张介质。
前述的纸板产品，其中所述凸印介质进一步包括线性凸印介质。
前述的纸板产品，其中所述多个刻划线大致覆盖所述面层的所有区域。
前述的纸板产品，其中所述多个刻划线与所述多个凹槽分别对齐，使得所述纸板产品能够在垂直于至少一个刻划线的平面中精确地联接。
本公开的目的还采用以下技术方案来实现。依据本公开提出的纸板制作方法，其包括：在将纸张面层与任何其他纸张产品组合之前，以第一间隔用多个刻划线刻划纸张面层；以第二间隔用多个凹槽凸印纸张介质，使得凸印介质的纤维与多个凹槽对齐；将所述纸张面层与所述凸印介质组合，使得相对于所述凹槽以第二间隔设定第一间隔下的所述刻划线；其中所述多个刻划线与所述多个凹槽分别对齐，使得各刻划线与各凹槽等距。
本公开的目的还可以采用以下的技术措施来进一步实现。
前述的纸板制作方法，其中，所述第一间隔及所述第二间隔相等并且相对于彼此偏移。
前述的纸板制作方法，其中，所述第一间隔包括为所述第二间隔数倍的距离。
前述的纸板制作方法，其中，所述组合进一步包括将所述凸印介质黏合至所述纸张面层。
前述的纸板制作方法，其中以第一间隔用所述多个刻划线刻划所述纸张面层进一步包括以约五毫米间隔压印刻划线。
前述的纸板制作方法，其中所述凹槽被凸印以展现C形凹槽轮廓。
前述的纸板制作方法，其进一步包括将所述纸张介质胶合至所述纸张面层。
前述的纸板制作方法，其进一步包括相对于所述纸张介质固定第二纸张面层。
前述的纸板制作方法，其中所述凸印进一步包括面向第一方向凸印第一组顶点结构且面向与所述第一方向相反的第二方向凸印第二组顶点结构。
本公开的目的还采用以下技术方案来实现。依据本公开提出的纸板制作机，其包括：刻划器，其经配置以第一间隔在纸张面层中压印至少一个刻划线；凸印器，其经配置以将纸张产品凸印成以第二间隔包含多个凹槽，使纤维与多个凹槽对齐；及组合器，其经配置以将所述纸张面层耦接至经凸印的所述纸张产品，使得所述第一间隔相对于所述第二间隔对齐；其中所述多个刻划线与所述多个凹槽分别对齐，使得各刻划线与各凹槽等距
本公开的目的还可以采用以下的技术措施来进一步实现。
前述的纸板制作机，其进一步包括多个进给辊，所述多个进给辊经配置以将纸张进给至所述刻划器且进给至所述凸印器。
前述的纸板制作机，其中所述组合器进一步经配置以将所述至少一个刻划线与多个凹槽中的一个或多个对齐，使得组合的纸张面层及凸印的纸张产品的联接相对于所述至少一个刻划线被偏置至精确位置。
附图说明
当结合附图参考以下详细描述时，权利要求的各方面及诸多随附优点将变得更加容易明白且同样变得更好理解，其中：
图1A-1B是不在一个或多个面层中利用刻划线的情况下在主要折叠联接之前与之后的波纹状单壁传统纸板产品的视图。
图2A-2C展示具有狭槽切口及传统压印线使得其可以被操纵成容器的坯件的各种状态。
图3是根据本文公开的主题的一个或多个实施例可为一个或多个纸板产品的部分的刻划面层的等距剖视图。
图4是根据本文公开的主题的一个或多个实施例可为一个或多个纸板产品的部分的凸印介质的等距剖视图。
图5是根据本文公开的主题的实施例具有图3的刻划面层以及图4的介质的纸板产品的等距剖视图。
图6A-6C是根据本文公开的主题的实施例在一个或多个面层中利用刻划线联接的图5的纸板产品的系列视图。
图7展示联接式传统纸板产品与图5的联接纸板产品的并排比较。
图8A-8B是根据本文公开的主题的实施例在一个或多个面层中利用刻划线进行联接之前与之后的纸板产品的视图。
图9是根据本文公开的主题的实施例经配置以生成图3的纸板产品的机器的各方面的图。
具体实施方式
呈现以下讨论以使得本领域技术人员可制作且使用本文公开的主题。在不脱离本详细描述的精神及范畴的情况下，本文所述的一般原理可应用于除了本文详述实施例及应用之外的实施例及应用。本公开无意受限于所示实施例，而是与符合本文公开或建议的原理及特征的最宽广范畴相一致。
作为概述，本文公开的主题可涉及一种用于生成由纸张产品制成的纸板产品的系统及方法，该纸张产品除了介质(有时称为开槽)之外亦具有预刻划的面层，使得可进行精确联接。传统纸板产品可具有交叉波纹状介质及不具有被刻印的一个或多个刻划线的面层(至少在与波纹状介质装配之前)。此传统纸板产品可能较差，因为被刻印的任何刻划线将以某种方式损坏下层波纹状介质。当最终纸板产品被刻划、切割和折叠时，下层介质强度的下降导致精度变差。折叠容器中缺乏精度会导致间隙变化及摆尾，因为纸板产品的任何联接部分在折叠时无法保持精确的联接平面。因此，联接部分“鱼尾”对不齐。
在具有策略性放置的刻划线(例如，相对于最终联接点及/或相对于附着介质中的下层凹槽策略性放置)的预刻划面层(有时称为壁或衬垫)的情况下，得以消除摆尾的问题。这是因为预刻划线会在联接时使面层偏向而在刻划线处避让。结果，面层上的折叠线沿着预刻划线精确对齐(使任何折叠与期望箱角图样对齐)并且相对于任何下层凹槽精确放置(使任何折叠也与凹槽图样对齐)。当结合使用与传统交叉波纹状介质相比展现更好结构特征的凸印介质时，可增强面层中预刻划线的效果。下文参考图1-8讨论本文公开的主题的各种实施例的此优点及附加方面。
图1A-1B是不在一个或多个面层中利用刻划线的情况下在主要折叠联接之前与之后的传统纸板产品100的视图。如概述中所简述，刻划线将有助于纸板联接，使得纸板产品的联接是精确的。为了展示传统纸板产品100的问题，展示图1A-1B中的视图，且然后在图2B-2C中展示最终容器的各种问题，以说明传统纸板产品100的问题的影响。传统纸板产品100可具有附着至第一面层101及第二面层202的某种形式的介质103。当然，此面层不具有预置的任何刻划线。因此，当然不存在与介质103中的凹槽配准的刻划线。进一步地，介质103也可为具有在介质103的纸张的交叉(下文进一步讨论)方向上对齐的凹槽的传统交叉波纹状介质。
当希望联接纸板产品100时(这通常为纸板产品最终用于容器及箱的情况)，机器可在用于联接的线(例如，用作不参考下层凹槽的角或折点)处生成刻划线(或者有时生成凹痕、压印或一些其他标记形式以便产生折线)。因此，在查看图1B时，希望可在点104处进行折叠。如可见，纸板产品100正被联接(在此视图中以约180度)。180度折叠有时被称为主要折叠，并且可为生成折叠箱坯件的制造商要求。坯件是处于扁平敞开状态的展开容器(如图2A所示)，其被制造成最终被操纵成容器或箱。下文参考图2A-2C讨论传统常规开槽容器(RSC)坯件。
当在生产坯件中机器在纸板产品中制作压印时，可使用机械压印套环在特定位置处压印折痕线。此位置与坯件的边缘有关(例如，仅作为一个实例，距坯件边缘36英寸)；在传统方法中，此位置与介质的下层凹槽无关。因此，当机械压印套环压印折叠线时，恰巧在压印区域内的任何下层凹槽都被压碎。借由压碎内部凹槽，使显著局部量的纸板结构趋中。因此，折叠点104开始向内弯曲，并且外部折叠点开始围绕折叠拉伸。随着两个腿部开始聚拢，折叠周围的内部凹槽开始变窄。
图1B展示全180度联接的传统纸板产品。第一面层101已被折叠成两半以便与其自身接触。第二面层102在点104处充分拉伸以在180度折叠点104周围调适附加距离。如可见，介质103的内部开槽在局部凹槽被显著损坏时失去结构。进一步地，第二面层102可能经常会在180度折叠点104处断裂。此种断裂在点104处显著弱化了纸板产品。由于折叠点104造成介质结构中的破坏以及一个或多个面层中可能的断裂，最终的容器或箱产品中将展现出附加的不期望的变化。接着参考图2A-2C讨论此不期望的变化。
图2A-2C展示具有狭槽106切口及传统压印线108b、108c、108d以及108e的坯件的各种状态，使得坯件105可以被操纵成容器。在图2A中，坯件105被展示成在其中可将纸板产品改变成具有期望的特征，诸如狭槽及压印线。因此，纸板产品可具有已沿最终折叠线108b、108c、108d及108e切割的一对狭槽106。出于希望的目的，狭槽106应精确地对齐并调整尺寸，且图2A中所示尺寸仅用于说明目的且仅作为扁平坯件105的一个实例。作为坯件的最终使用者的典型要求，最左侧面板107a可折叠(在折叠线108b处)180度以平放在面板107b的顶部。此180度折叠被称为主要折叠。类似地，最右侧面板107d可折叠(在折叠线108d处)180度以平放在面层107c的顶部上。一旦折叠，坯件105的端部108a及108e然后可以彼此相邻地定位，其中胶合垫109以重叠方式定位，使得边缘108a可黏合至胶合垫109。当精确对齐时，边缘108a邻近边缘108e定位，使得边缘108a与108e之间的距离与坯件105中的其他狭槽106的宽度相同。
当以该方式联接时，被拆卸的容器坯件105可处于折叠状态，以被进给至机器中用于从坯件竖立箱或容器。此联接可用于在竖立成箱或容器之前包装且装运所得被拆卸的容器坯件105。如图2B-2C所示，当在传统纸板产品上执行时，此联接经常导致不期望的变化。
第一种不期望的变化展示于图2B中，且称为间隙变化。当边缘108a及108e未精确地彼此对齐时，可能发生间隙变化，以便在胶合垫109黏合至面板107a上时，展现出与其他狭槽的宽度相同的间隙。如果折叠线108b及108d处的主要折叠向内卷起，则间隙可能太窄，且如果折叠线108b及108d处的主要折叠向内卷起，则间隙可能太宽。在此视图中，可见面板107a已沿主要折叠线108b联接180度，且面板107d已沿主要折叠线108d联接180度。然而，胶合垫109不会与面板107a显著重叠，并且边缘108a及108e相距太远。在无精确重叠的情况下，具有胶合垫109的边缘108a及108e可能未在适当位置彼此适当地黏合。由于折叠线缺乏精度，趋中的主要折叠线108b及108d可能引起此间隙变化。图中未展示的另一变化可为边缘108a及108e过于靠近或甚至重叠之际。间隙变化的特征可在于胶合垫具有过多重叠或不足够的重叠(或甚至没有重叠)，并且是导致成品容器中有不期望的问题的变量。
第二种不期望的变化展示于图2C中，并且被称为“摆尾”。当折叠导致一个或多个面板不与其他面板平行时，会发生摆尾。在图2C所示的实例中，面板107a不与面板107d平行。如此，边缘108a也不与边缘108e平行，并且胶合垫不会以精确的方式与面板107a接合。此处，主要折叠108b可足够精确，但是主要折叠108d不精确且导致面板107d折叠摆尾对不齐。这导致将RSC坯件竖立成箱或容器的设定机器的问题。
图2A-2C中所示问题通常是由于刻划及折叠传统纸板产品而未考虑介质中的任何下层凹槽的位置而发生的。另外，装配后刻划(例如，在装配纸板产品之后发生的刻划)造成对凹槽的损坏，因为旁侧凹槽变得被部分或完全压碎以防止凹槽循着期望折叠位置的任一侧上的折叠线。这不仅降低了板/箱强度，也允许不规则折叠(卷动刻划)，导致如在制造商联合会处所量侧的间隙变化。该问题及其他问题可借由预刻划面层且然后用与介质的下层凹槽配准的刻划线装配纸板产品来克服。
在讨论各种实施例之前，提出了关于交叉波纹化及线性凸印的简要讨论。如上文已有简述，传统纸板产品包含传统生成的波纹状介质(有时称为波纹状开槽)，例如交叉波纹状介质。交叉波纹状介质具有垂直于纸张产品的最下层纤维形成的凹槽。这会导致凹槽不与大多数下层纤维对齐，且因此不会利用纸张的MD值的自然强度(当与CD值比较时)。当要实现特定板强度时，无法利用纸张的MD值会导致在制造纸板产品时失去机会。也就是说，必须花费更多纸张(较重的纸张、较大的凹槽等)来实现所需的纸板强度。
线性凸印介质与交叉波纹状介质的不同之处在于产生的凹槽与纸张产品的MD值对齐。这导致凹槽与大部分下层纤维对齐，且因此利用纸张MD值的自然强度(与CD值相比)。当要实现特定纸板强度时，利用纸张MD值可以提高纸板产品的制造效率。也就是说，必须花费较少的纸张(较轻的纸张、较小的凹槽等)来实现所需的纸板强度。在2016年3月22日提交的题为“用于借由相对于机器方凸印而在纸张产品中进行开槽的系统及方法(SYSTEM ANDMETHOD FOR INDUCING FLUTING IN APAPER PRODUCT BY EMBOSSING WITH RESPECT TOMACHINE DIRECTION)”的美国专利申请案第15/077,250号中更详细讨论制作、生成及使用线性凸印介质的态样，该案全部内容为了所有目的以引用的方式并入本文。下文参考图4讨论线性凸印介质的各方面。接下来，参考图3讨论预刻划衬垫的各方面。
图3是根据本文公开的主题的一个或多个实施例可为一个或多个纸板产品的部分的刻划面层110的等距剖视图。在此实施例中，面层可生成为在MD方向122上具有MD值并且具有常用于纸板产品面层的重量及材料。面层110有时可称为衬垫或壁，因为纸板产品的该层通常是纸板产品的最内部。如上文简要讨论，可经常刻划面层110以沿着特定线引发联接。然而，如果面层已与纸板产品的一个或多个附加层(例如，波纹状介质、凸印介质、另一面层等)耦接，则刻划程序将不仅会在面层110上留下压印，也在纸板产品的任何其他层上留下压印。如图2B-2C所示，此装配后刻划导致纸板产品的附加层的不期望变化及结构损坏，其继而在联接点处显著弱化纸板产品。
然而，图3的实施例可为经受预刻划程序的面层110，使得在面层110与任何其他纸张产品组合之前将刻划线115压印至面层110中(例如，纸板产品的任何其他层)。在图3所示的实施例中，预刻划线115相对于彼此距，并且可以策略性间隔开以与最终具有类似特定间距尺寸的凹槽的最终凸印介质(图3中未展示)对齐。进一步地，刻划线可为面层110中的连续压印。然而，“刻划”线可为面层110在纸板产品中相对于下层凹槽策略性放置的折叠点处的任何局部弱化。然后，在其他实施例中，刻划可为折痕压印(连续线性或间断)、通过面层110的部分狭缝(连续线性或间断)、面层110中的穿孔等。
在未展示的其他实施例中，预刻划线115在面层110上可略不一致。例如，两个刻划线115可彼此隔开约5mm组合在一起，然后与具有此5mm间隔刻划线的两者的另一分组隔开。在另一个实例中，在面层或甚至单个刻划在线可仅存在单个刻划分组。虽然给出5mm间隔作为实例，但是任何间隔宽度都是可行的，并且共同的间隔将匹配共同的凹槽轮廓，诸如C形凹槽、B形凹槽、R形凹槽等。此分组可对应于特定箱机的预期联接点。然而，为了有效地生成一致面层110的目的，刻划线115可由刻划器以策略性选择的间隔(例如，每五毫米)压印，使得预刻划面层110的任何部分可与最终纸板产品的其他层组合。图4的凸印介质130可为一个该附加层。
图4是根据本文公开的主题的一个或多个实施例可为一个或多个纸板产品的部分的凸印介质130的等距剖视图。此图展示可由凸印程序形成的凸印介质130的一部分的等距视图。也就是说，借由使用线性图印技术使初始纸张产品通过凸印辊而形成凹槽131，使得凹槽131形成为与纸张的大部分下层纤维125一致。凹槽131也形成为与机器方向122一致。线性凸印介质130在纸张的机器方向122上形成凹槽131(例如，与大部分底层纤维125一致)时会利用纸张在机器方向122上的自然强度。因此，线性凸印介质130利用纸张在机器方向122上的自然强度。此凸印介质130可为如下文参考图5所讨论的纸板产品的组件/层。
进一步地，如图4所示，当从剖视角度观察时，凹槽131可形成三角形图样。具有三角形重复形状的此凹槽图样被称为凹槽轮廓。当与展现曲线或正弦曲线凹槽轮廓的凹槽轮廓相比，此凹槽轮廓在凸印介质130的结构完整性上提供改良。此种曲线或正弦曲线的凹槽轮廓在传统交叉波纹状介质中是普遍的。因此，如图4所示的三角形凹槽轮廓在纸板强度及结构完整性上也优于波纹状介质。凹槽轮廓展现了可黏合至面层(未展示)的顶点132。顶点可以特定距离(诸如例如5mm)以重复方式间隔开。如下文将讨论，当耦接至图3的匹配预刻划面层110时，凸印介质130的顶点132可以期望的方式精确对齐，以产生任何所得纸板产品的精确且较少破坏性的联接。
图5是根据本文公开的主题的实施例具有图1的刻划面层110以及图4的介质130的纸板产品300的等距剖视侧视图。在此实施例中，纸板产品300包含三层：第一面层110、介质130及第二面层140。如所示，第一面层110可形成耦接至凸印介质130的一侧的内壁(虽然与纸板产品300的对齐的顶部/底部方向参考是任意的)。耦接可通过施加至介质130的顶侧上的各凹槽的顶点的黏合剂，使得面层110被胶合至在其中施加黏合剂的介质130。在其他实施例中，可在耦接至介质130之前将胶施加到整个面层110。
同样地，第二面层140可形成耦接至凸印介质130的相对侧的底侧外壁(再次，顶部/底部方向参考是任意的)。耦接可通过施加至介质130的底侧上的各凹槽的顶点的黏合剂，使得面层140被胶合至在其中施加黏合剂的凸印介质130。在其他实施例中，可在耦接至凸印介质130之前将胶施加至整个面层140。
刻划线115在凸印介质的下层凹槽的方向上对齐。刻划线及凹槽两者亦与刻划面层110、面层140及介质130中的下层纸张的机器方向122对齐。进一步地，在此实施例中，刻划面层110的刻划线115以使得刻划线与固定凸印介质的相应顶点位置等距放置的方式对齐。例如，如果凸印介质130的顶侧顶点彼此间隔5mm，则刻划线115也彼此间隔5mm，但是偏移2.5mm。也就是说，对于相隔5mm的每对顶侧顶点，固定面层110在以约2.5mm彼此隔开的每对顶侧顶点之间的中间具有刻划线115。
通过在固定至具有线性凹槽的介质的面层中精确放置刻划线，可产生精确的联接线。也就是说，如果要折叠纸板产品300，则刻划面层将以精确的方式沿着一个或多个刻划线避让。也就是说，折叠将精确地位于与联接的刻划线垂直的单个平面中。此折叠可以是精确的并且将用于防止联接方向转向偏离刻划线的平面的法线。在其他实施例(未展示)中，底侧面层140也可预刻划有与凸印介质130的底侧顶点精确对齐的刻划线类似的图样。进一步地，任何面层中的预刻划线可大致覆盖面层的所有区域(例如，仅在预期联接点中的刻划线)。
当装配且固定所有三个层时，由于几个因素，所得纸板产品300优于传统纸板产品。首先，因为凸印介质130的凹槽相对于预刻划面层110的刻划线策略性对齐，所以纸板产品的任何联接都将是精确的，导致成品箱容器的精度。此精度可防止间隙变化及摆尾。进一步地，线性凸印介质130包含由于各凹槽的三角形特性的腿部结构而展现优异强度的凹槽轮廓。又进一步地，黏合剂可较精确地以可预测方式连续且均匀地施加至各顶点，因为黏合剂的部分不会如不具有扁平接收区域的正弦曲线顶点的情况般溢出至腿部。最后，当使用传统纸板刻划技术时，预刻划面层110防止在纸板装配之后具有导致下层(例如，凸印介质130)损坏的刻划步骤。
图6A-6C是根据本文公开的主题的实施例在一个或多个面层中利用刻划线联接的图5的纸板产品300的系列视图。在图6A中，从边缘视图展示纸板产品300，以便更好地说明纸板产品300联接时发生的情况。如所示，纸板产品300包含第一面层110、第二面层140及介质130。介质130被安置在第一面层110与第二面层140之间。第一面层也可包含刻划线115。在图6A的此实例视图中，仅出于说明目的将第一面层110展示为面向下。进一步地，为了便于说明，仅展示两个刻划线115，因为可能存在与在第二面层140上也包含刻划线的介质130的凹槽配准的更多刻划线。又进一步地，介质130展示为具有正弦曲线的凹槽轮廓，但是应理解，可使用任何形状的凹槽轮廓。
在下一视图图6B中，纸板产品300已开始联接。此处，折叠线将精确地遵循面层110中的刻划线115。因此，第一折叠点603对应于第一刻划线115，且第二点604对应于第二刻划线。如图6B的此视图可见，将导致最终180度联接的联接将包括两个各约90度的不同折叠。进一步地，第一折叠点603直接位于介质130的两个顶点(面向下凹槽的顶点-即，固定到第一面层110的两个顶点)之间，使得此凹槽的腿部开始朝向彼此移动。结果，第二面层140的第一拉伸点601开始直接在第一折叠点603上形成。类似地，第二折叠点604直接位于介质130的两个顶点之间(面向下凹槽的顶点-即，固定到介质130的第一面层110的两个顶点)，使得此凹槽的腿部也开始朝向彼此移动。结果，第二面层140的第二拉伸点602开始直接在第二折叠点604上形成。
在图6C中，纸板产品300被展示为完全联接到180度位置。因此，第一拉伸点601及第二拉伸点602各为约90度。与图1A-1B的拉伸点折叠整个180度的传统实例不同，此实施例实现了完整180度的纸板产品联接，而仅具有大约90度的折叠，从而在任何给定位置处造成拉伸。在任何给定点处具有完全180度的联接而仅具有90度的拉伸导致在面层140中的下层纤维的拉伸点处的应力较小。此继而导致在箱及容器的角处的强度由于拉伸对面层140的损坏更少并且介质130中无凹槽结构的损失而更大。
进一步地，折叠点603及604一直折叠至相应凹槽中，使得形成次要凹槽以从衬垫110提供附加的角结构。即，在第一折叠点603处，第一次要折叠凹槽610由第一主要折叠凹槽605内侧的面层110形成。同样地，第二次要折叠凹槽611由第二主要折叠槽606内侧的面层110形成。次要凹槽610及611在箱及容器中提供附加的角强度。
图7展示联接式传统纸板产品100与图5的联接纸板产品300的并排比较。如可见，传统纸板100在180度联接点处及邻近处展示出介质结构的变形。此处，下层凹槽已趋中，因为折叠点并未恰巧与介质中的相应凹槽对齐。此角在折叠上的可预测性明显较低。不同地，具有精确定位刻划线的纸板产品的实施例展现如上文参考图6C所讨论的附加次要凹槽。与传统实例100相比，纸板产品300中的此联接点将具有优越的强度。
图8A-8B是根据本文公开的主题的实施例在一个或多个面层中利用一刻划线进行联接之前与之后的纸板产品的视图。在图8A中，从边缘视图展示纸板产品800，以便更好地说明当纸板产品800被联接时发生的情况。如所示，纸板产品800包含第一面层810、第二面层840及介质830。介质830被安置在第一面层810与第二面层840之间。第一面层可进一步包含一个刻划线815。在图8A的此实例视图中，第一面层810仅出于说明目的被展示为面向下。进一步地，仅展示精确位于介质830中的凹槽的顶点下方的一个刻划线815。又进一步地，介质830被展示为具有正弦曲线的凹槽轮廓，但是应理解，可使用任何形状的凹槽轮廓且介质830可为压印的或波纹状的。
在下一视图图8B中，纸板产品300已开始联接。此处，折叠线将精确地遵循面层810中的刻划线815。因此，第一折叠点804对应于第一刻划线815。如图8B的此视图可见，联接将导致最终约90度的联接而不会损坏下层凹槽。进一步地，折叠点804直接位于介质830的两个顶点(面向下凹槽的顶点-即，固定到第一面层810的两个顶点)之间，使得此凹槽的腿部开始朝向彼此移动。结果，第二面层840的拉伸点805开始直接在折叠点804上形成。利用精确定位的刻划线815，可实现90度折叠而不会对介质830的凹槽造成不期望的损坏。接下来，参考图9的机器讨论纸板产品的各种实施例的附加方面。
图9是根据本文公开的主题的实施例经配置以生成图5的纸板产品300的机器500的各方面的图。机器500可生成也包含来自图8A的纸板产品800的实施例的其他实施例。机器500包含用于生成纸板产品的三个纸张进给辊510、530及540。此进给辊包含第一面层进给辊510、凸印介质进给辊530及第二面层进给辊540。应注意，缠绕在第一面层进给辊510上的纸张系在刻划之前且被缠绕在凸印介质进给辊530上的纸张是在凸印之前。各相应进给辊的纸张的重量及组成可不同并且专门针对相应目的而设计。
来自各卷的纸张可从各相应卷展开并且朝向经配置以将各层纸张组合在一起以形成所得纸板产品的组合器550进给。在进入组合器550之前，来自进给辊的纸张的至少一些可通过一个或多个台以对纸进行刻划。因此，第一面层进给辊510可将纸张进给到刻划台590中，刻划台590以精确方式对纸张进行刻划。在其他实施例中，压印在面层110上的线可为沿精确线的穿孔，间断切口或面层110的一些其他形式的局部弱化。当纸张离开刻划台590时，其变成如上文参考图3所讨论的刻划面层110。然后刻划面层110被进给至组合器550以与其他材料组合。
进一步地，同样在进入组合器550之前，来自进给辊的纸张的至少一些可通过用于将纸张形成为介质的一个或多个台。如本文及本行业中所使用，介质可指已形成为具有凹槽的纸张的纸张产品。因此，凸印介质进给辊530可将纸张进给至彼此对齐的第一凸印辊531a及第二凸印辊531b中。当纸张离开凸印台(例如，凸印辊531a及531b)时，其变成如上文参考图4所讨论的凸印介质130。然后凸印介质130被进给到组合器550中以与其他材料组合。
一旦通过凸印辊531a及531b，凸印介质130便可行进到施加器570，以将黏合剂施加至新形成的顶点。施加器可包含用于识别各顶点的位置且然后将一系列黏合剂施配器与所识别顶点对齐的装置。在其他实施例中，黏合剂可用纸张在其中接触胶膜并黏合到凹槽尖端的(多个)胶辊转移到凹槽尖端。以此方式，可以连续且均匀的方式精确地施加黏合剂。然后，使用诸如黏合、固化、润湿、干燥、加热及化学处理等各种技术在组合器中组合第一面层110、凸印介质130以及第二面层140。所得纸板产品300具有与在其中可精确联接纸板产品的至少一个线性凸印介质130精确对齐的至少一刻划面层。
虽然本文讨论的主题易于进行各种修改及替代构造，但是其某些绘示的实施例在图式中展示并且已在上文有详细描述。然而，应理解，无意将权利要求限制于所公开的具体形式，正相反，旨在覆盖落入权利要求的精神及范畴内的所有修改、替代构造及等效物。

Claims (19)

1.一种纸板产品，其包括：
具有多个刻划线的面层，在将所述面层与任何其他纸张产品组合之前，所述多个刻划线被压印在纸张中；及
凸印介质，所述凸印介质包括一个方向上排列的纤维，所述凸印介质进一步包括各自轴线在该方向上排列的多个凹槽，所述凸印介质耦接至所述面层，使得所述多个刻划线分别相对于所述多个凹槽以平行方式对齐；
其中所述多个刻划线与所述多个凹槽分别对齐，使得各刻划线与各凹槽等距。
2.根据权利要求1所述的纸板产品，其进一步包括相对于所述凸印介质固定的第二面层。
3.根据权利要求2所述的纸板产品，其中所述第二面层包含多个刻划线，在所述面层与任何其他纸张产品组合之前所述多个刻划线被压印在所述纸张中。
4.根据权利要求1所述的纸板产品，其进一步包括相对于所述面层固定的第二纸张介质。
5.根据权利要求1所述的纸板产品，其中所述凸印介质进一步包括线性凸印介质。
6.根据权利要求1所述的纸板产品，其中所述多个刻划线大致覆盖所述面层的所有区域。
7.根据权利要求1所述的纸板产品，其中所述多个刻划线与所述多个凹槽分别对齐，使得所述纸板产品能够在垂直于至少一个刻划线的平面中精确地联接。
8.一种纸板制作方法，其包括：
在将纸张面层与任何其他纸张产品组合之前，以第一间隔用多个刻划线刻划纸张面层；
以第二间隔用多个凹槽凸印纸张介质，使得凸印介质的纤维与多个凹槽对齐；
将所述纸张面层与所述凸印介质组合，使得相对于所述凹槽以第二间隔设定第一间隔下的所述刻划线；
其中所述多个刻划线与所述多个凹槽分别对齐，使得各刻划线与各凹槽等距。
9.根据权利要求8所述的纸板制作方法，其中，所述第一间隔及所述第二间隔相等并且相对于彼此偏移。
10.根据权利要求8所述的纸板制作方法，其中，所述第一间隔包括为所述第二间隔数倍的距离。
11.根据权利要求8所述的纸板制作方法，其中，所述组合进一步包括将所述凸印介质黏合至所述纸张面层。
12.根据权利要求11所述的纸板制作方法，其中以第一间隔用所述多个刻划线刻划所述纸张面层进一步包括以约五毫米间隔压印刻划线。
13.根据权利要求8所述的纸板制作方法，其中所述凹槽被凸印以展现C形凹槽轮廓。
14.根据权利要求8所述的纸板制作方法，其进一步包括将所述纸张介质胶合至所述纸张面层。
15.根据权利要求8所述的纸板制作方法，其进一步包括相对于所述纸张介质固定第二纸张面层。
16.根据权利要求8所述的纸板制作方法，其中所述凸印进一步包括面向第一方向凸印第一组顶点结构且面向与所述第一方向相反的第二方向凸印第二组顶点结构。
17.一种纸板制作机，其包括：
刻划器，其经配置以第一间隔在纸张面层中压印至少一个刻划线；
凸印器，其经配置以将纸张产品凸印成以第二间隔包含多个凹槽，使纤维与多个凹槽对齐；及
组合器，其经配置以将所述纸张面层耦接至经凸印的所述纸张产品，使得所述第一间隔相对于所述第二间隔对齐；
其中所述多个刻划线与所述多个凹槽分别对齐，使得各刻划线与各凹槽等距。
18.根据权利要求17所述的纸板制作机，其进一步包括多个进给辊，所述多个进给辊经配置以将纸张进给至所述刻划器且进给至所述凸印器。
19.根据权利要求17所述的纸板制作机，其中所述组合器进一步经配置以将所述至少一个刻划线与多个凹槽中的一个或多个对齐，使得组合的纸张面层及凸印的纸张产品的联接相对于所述至少一个刻划线被偏置至精确位置。
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US20200376795A1 (en) 2020-12-03
EP3445575A4 (en) 2019-12-25
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JP2019514725A (ja) 2019-06-06
CN109414897A (zh) 2019-03-01
AU2017252187A1 (en) 2018-12-06
ZA201807784B (en) 2021-04-28
US20200376794A1 (en) 2020-12-03
KR20190020294A (ko) 2019-02-28
CO2018012331A2 (es) 2018-11-22
MX2018012755A (es) 2019-12-16
NZ748407A (en) 2022-03-25
US20170305101A1 (en) 2017-10-26
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US11465385B2 (en) 2022-10-11
WO2017184321A1 (en) 2017-10-26
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PE20181865A1 (es) 2018-12-04
BR112018071512A2 (pt) 2019-02-19

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