CN106536387B - 用于生产柔性包装产品、更特别是包装袋的方法和设备 - Google Patents
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Abstract
一种用于生产柔性包装产品、更特别是包装袋的方法,该包装产品通过将两个膜层焊接在一起而形成。为了避免加工步骤的顺序中的不精确性,由膜层形成的膜段(4)与膜卷材(7a;7b)分离并且被转移到输送设备(1),在输送设备处,该膜段通过固定设备(3)在至少一个边缘处被可靠地固定。然后,在保持可靠锁定的同时,通过输送设备(1)沿输送方向(5)将膜段(4)输送到至少一个焊接站(12),在该焊接站中膜层被焊接在一起,并且随后在保持可靠锁定的同时进一步输送膜段(4)。
Description
本发明涉及一种用于生产柔性包装产品的方法。
已知由在卷筒上传送的卷材状膜原料(film stock)生产包装产品。通过沿生产设施布置的辊对(roller pair)或夹具(gripper)向前供给膜材料,并以逐步的方式输送膜材料。结果,膜材料必须满足不是由包装的预期用途和内容物规定而是主要由生产工艺规定的要求。施加到膜材料的张力要求即使在随着焊接期间它们得到的高达200摄氏度或者更高的相对高的温度下,材料具有高的拉伸强度和低的伸长(率)。当通过夹具向前供给时,膜材料还需要具有一定的刚度,因为卷材的一部分一直由夹具推动。因此,难以通过这些已知的方法加工薄的膜。
在整个卷筒上的膜材料应该展现出恒定的并且优选地有利的摩擦系数。在由辊或夹具向前供给时过于平滑的膜将滑动,而太粗糙的膜趋于在偏转中弯曲。通常尝试通过添加施加到膜或结合到膜材料中的润滑剂来获得理想的滑动性能。这些光滑处理是昂贵的、难以以程序化的可靠方式来生产,并且在储存期间由于润滑剂添加剂在膜层中的迁移,所需效果会消失。此外,润滑剂可能潜在地使这种包装产品的消费者承受健康风险。用于实现所需滑动性能的另一种方法包括通过机械压印使膜表面结构化。与此同时,在储存时间段期间随着机械压印退化效果可能下降。由于上述原因,在所述的拉伸供给技术中几乎不使用本身方便且在商业上有利的印刷膜表面。设置在膜材料上的任何印刷品都可能负面地影响摩擦系数,并且印刷品可能由膜材料的滑动输送而损坏。
这些已知的生产方法的另外的缺点是,当***或更换膜卷筒时,除了别的以外,因为每个新卷筒上的膜材料具有其本身的滑动系数,并且需要将生产设施调整到新的供给条件,所以导致相当大的启动浪费。膜卷材的相关联的可变伸长引起了不精确和浪费。此外,所描述的方法要求比实际预期的包装用途要求的更宽的焊缝,以便补偿生产设施中膜材料的引导中的不精确和变化。相应地,由于需要修整包装产品的边缘,向前供给的材料的变化位置产生了浪费。
在该现有技术的背景下,本发明的目的是提出一种用于生产柔性包装产品的方法,其中关于膜材料的要求降低到最小值,同时增加生产可靠性、最小化用于焊缝和边缘修整料的材料余量以及最小化浪费。
根据本发明,该目的通过提供一种生产柔性包装产品的方法来实现,其中所述柔性包装产品是包装袋。所述包装产品通过将两个膜层焊接在一起而形成,其中,将由膜层形成的膜段与膜卷材分离并且传送到输送设备,在所述输送设备处,所述膜段通过固定设备在至少一个边缘处被可靠地固定,其中,在保持可靠锁定的同时,通过所述输送设备沿输送方向将所述膜段输送到至少一个焊接站,其中,在所述焊接站中所述膜层被焊接在一起,并且其中随后在保持可靠锁定的同时进一步输送所述膜段。
尤其是,本发明的方案提供以下优点,通过在将膜段(film section)传送到固定设备之后保持可靠锁定(positive fit,形状配合),不发生膜段的进一步转移,因而避免了在焊接以及可能的另外的加工步骤期间的不精确。而且,与如在已知现有技术中移动整个膜卷材的情况相比,膜段可以受到基本上更高的加速度,而不会使膜材料过度拉紧。
进一步地,所述至少一个边缘是沿所述输送方向延伸的边缘。
进一步地,所述至少一个边缘是相对于所述输送方向以一角度延伸的边缘。
进一步地,所述膜段在所述膜段的两个相对边缘处被固定。
本发明还涉及一种用于生产柔性包装产品的设备,所述柔性包装产品是包装袋,其中所述包装产品通过将两个膜层焊接在一起而形成,其中,所述用于生产柔性包装产品的设备包括用于将由膜层形成的膜段与膜卷材分离的切割设备以及用于将所述膜段转移到配备有固定设备的输送设备的定位设备,所述固定设备能够与所述输送设备一起移动并且被构造成用于可靠地固定所述膜段,并且其中,所述用于生产柔性包装产品的设备包括用于将所述膜层焊接在一起的至少一个焊接站。该设备实现了与上述用于生产柔性包装产品的方法相同的目的,即关于膜材料的要求降低到最小值,同时增加生产可靠性、最小化用于焊缝和边缘修整料的材料余量以及最小化浪费。
进一步地,所述用于生产柔性包装产品的设备包括至少一个另外的焊接站。
进一步地,所述用于生产柔性包装产品的设备包括至少一个冷却站。
进一步地,所述用于生产柔性包装产品的设备包括用于切割所述膜段的至少一切割站。
进一步地,所述用于生产柔性包装产品的设备包括用于为所述包装产品提供另外的部件的至少一组装站,其中所述另外的部件是焊接部件。
进一步地,所述用于生产柔性包装产品的设备包括用于测试所述膜段和/或所述包装产品的至少一测试站。
进一步地,所述用于生产柔性包装产品的设备包括用于卸载无缺陷或有缺陷的包装产品的至少一卸载站。
进一步地,所述用于生产柔性包装产品的设备包括用于卸载在已经切割下所述包装产品之后保留在所述固定设备中的所述膜段的边缘修整料的至少一卸载站。
进一步地,所述输送设备包括至少一个循环运送装置,所述固定设备连接到所述循环运送装置。
进一步地,所述固定设备被构造成被压印到所述膜段中。
进一步地,所述固定设备被构造成刺入所述膜段。
在下文中,将参照附图说明本发明的示例性实施方式,附图示出了:
图1用于实施本发明的方法的设备的两种实施方式的示意性立体图。
图1示出了作为中心元素的输送设备1,在例示的示例性实施方式中,该输送设备包括两个平行的、可同步驱动的链式运送机2,该输送机沿输送方向5运送膜段4。可替代地,可以设置单个链式运送机2。代替链式运送机,可以设置其他输送设备,例如,由蜗轮或由单独的线性发动机驱动的环形带或缆或输送单元。下面将更详细讨论的若干固定设备用于将膜段4可靠保持(positive retention,形状配合保持)在链式运送机2上。在图1中示出了用于将膜段4供给到输送设备1的两种可替代布置,其中相应的附图标记用字母a或b表示。变量a表示横向于输送方向5供应膜段4,而变量b表示沿输送方向供应膜段4。两种变量a和b均包括相应的供应卷筒6a和6b,相应的膜卷材7a和7b从相应的卷筒展开。相应的辊对8a和8b用于从供应卷筒展开膜卷材并将膜卷材供给到相应的切割设备9a和9b,通过相应的切割设备分别从膜卷材7a或7b切割出膜段4。
在本实例中,相应的供应卷筒6a或6b包括两个膜层,该两个膜层被单独提供或者通过折叠单个膜卷材形成。此外,用于生产底裆袋(bottom gusset bag)的膜层可以例如已经结合并且连接到其他膜卷材,例如通过准时点焊(punctual tack weld)。可替代地,也可以由单独的供应卷筒供应每个膜层。
在如由箭头组11所指示的所有方向上可移动的定位设备10用于捕获通过相应的切割设备9a或9b分离的膜段4并将该膜段精确地定位在固定设备3上。为了捕获膜段4,定位设备可以设置有真空夹具。精确的定位优选地通过印刷到相应的膜卷材7a或7b上或压印在相应的膜卷材上的标记来实现,同时由于膜卷材的伸长或收缩的可能的不精确可以通过以对应的方式将膜段4置于固定设备3上来补偿。这对于其中卷材上的不精确性可能累加的传统生产过程构成了显著的优点。
在本实例中,固定设备3被设计成刺入膜段4的针状物组。未示出的压紧设备确保膜段4在输送期间不从针状物组处脱离。在另一个实施方式中,固定设备3可以包括将膜段4压印到其中的区域。这些区域可以例如通过锥形***或金字塔形***形成,同时压紧设备设置有锁定凹部,膜段4的对应区域被上述***压入该锁定凹部中。在例示的实例中,固定设备3布置在平行的链式运送机2上,使得造成如所看到的膜段4的两个平行的侧边缘在输送方向5上固定。可替代地,还可以为链式运送机2设置具有以一定角度突出并且具有固定设备的臂,由此固定横向于输送方向5延伸的膜段4的相应的边缘。
附图标记12表示焊接站,其包括上部工具13和下部工具14,上部工具和下部工具的每个均至少能够如由双箭头15和16所指示的竖直地移动。为了清楚起见,设备的示出在焊接站12的右侧结束。该设备可以包括另外的工作站,例如,为以下形式的工作站:另外的焊接站、冷却站、切割站、例如用于焊接部件的组装站、用于完成的包装袋的测试站或卸载站以及用于已经保留在固定设备3中的边缘修整料的卸载站。
由于以下事实,根据本发明,加工膜段与在其中加工连续卷材的已知生产工艺相反,实际上可以获得用于加工的两个额外的边缘,同时在脱离包装产品之前保持可靠锁定(positive fit),例如以便附加焊接部件诸如倾倒口。
附图标记列表
1 输送设备 13 上部工具
2 链式运送机 14 下部工具
3 固定设备 15 双箭头
4 膜段 16 双箭头
5 输送方向
6a 供应卷筒
6b 供应卷筒
7a 膜卷材
7b 膜卷材
8a 辊对
8b 辊对
9a 切割设备
9b 切割设备
10 定位设备
11 箭头
12 焊接站
Claims (18)
1.一种用于生产柔性包装产品的方法,其中所述包装产品通过将两个膜层焊接在一起而形成,其特征在于,将由膜层形成的膜段(4)与膜卷材(7a、7b)分离并且传送到输送设备(1),在所述输送设备处,所述膜段通过固定设备(3)在至少一个边缘处被可靠地固定,其中,在保持可靠锁定的同时,通过所述输送设备(1)沿输送方向(5)将所述膜段(4)输送到至少一个焊接站(12),其中,在所述焊接站中所述膜层被焊接在一起,并且其中随后在保持可靠锁定的同时进一步输送所述膜段(4)。
2.根据权利要求1所述的方法,其特征在于,所述柔性包装产品是包装袋。
3.根据权利要求1所述的方法,其特征在于,所述至少一个边缘是沿所述输送方向(5)延伸的边缘。
4.根据权利要求1所述的方法,其特征在于,所述至少一个边缘是相对于所述输送方向(5)以一角度延伸的边缘。
5.根据前述权利要求中的一项所述的方法,其特征在于,所述膜段(4)在所述膜段的两个相对边缘处被固定。
6.一种用于生产柔性包装产品的设备,其中所述包装产品通过将两个膜层焊接在一起而形成,其特征在于,所述用于生产柔性包装产品的设备包括用于将由膜层形成的膜段(4)与膜卷材(7a、7b)分离的切割设备(9a、9b)以及用于将所述膜段(4)转移到配备有固定设备(3)的输送设备(1)的定位设备(10),所述固定设备(3)能够与所述输送设备一起移动并且被构造成用于可靠地固定所述膜段(4),并且其中,所述用于生产柔性包装产品的设备包括用于将所述膜层焊接在一起的至少一个焊接站(12)。
7.根据权利要求6所述的用于生产柔性包装产品的设备,其特征在于,所述柔性包装产品是包装袋。
8.根据权利要求6所述的用于生产柔性包装产品的设备,其特征在于,所述用于生产柔性包装产品的设备包括至少一个另外的焊接站。
9.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述用于生产柔性包装产品的设备包括至少一个冷却站。
10.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述用于生产柔性包装产品的设备包括用于切割所述膜段(4)的至少一切割站。
11.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述用于生产柔性包装产品的设备包括用于为所述包装产品提供另外的部件的至少一组装站。
12.根据权利要求11所述的用于生产柔性包装产品的设备,其特征在于,所述另外的部件是焊接部件。
13.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述用于生产柔性包装产品的设备包括用于测试所述膜段和/或所述包装产品的至少一测试站。
14.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述用于生产柔性包装产品的设备包括用于卸载无缺陷或有缺陷的包装产品的至少一卸载站。
15.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述用于生产柔性包装产品的设备包括用于卸载在已经切割下所述包装产品之后保留在所述固定设备中的所述膜段(4)的边缘修整料的至少一卸载站。
16.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述输送设备(1)包括至少一个循环运送装置(2),所述固定设备(3)连接到所述循环运送装置。
17.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述固定设备被构造成被压印到所述膜段中。
18.根据权利要求6至8中的一项所述的用于生产柔性包装产品的设备,其特征在于,所述固定设备被构造成刺入所述膜段。
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EP14176376.3A EP2965900A1 (de) | 2014-07-09 | 2014-07-09 | Verfahren und Vorrichtung zur Herstellung flexibler Verpackungserzeugnisse, insbesondere Verpackungsbeutel |
EP14176376.3 | 2014-07-09 | ||
PCT/EP2015/065452 WO2016005375A1 (en) | 2014-07-09 | 2015-07-07 | Method and device for producing flexible packaging products, more particularly packaging bags |
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US11220081B2 (en) * | 2016-05-16 | 2022-01-11 | Cmd Corporation | Method and apparatus for pouch or bag making |
MX2019005341A (es) * | 2016-11-08 | 2019-11-12 | Ameriglobe Llc | Bolsa a granel sin puntadas con costuras fusionadas por calor y método de producción. |
CN107097461A (zh) * | 2017-06-26 | 2017-08-29 | 东莞市鑫鸣机械科技有限公司 | 一种八边封五面袋的全自动生产设备 |
EP3456529B1 (de) * | 2017-09-19 | 2021-03-31 | Harro Höfliger Verpackungsmaschinen GmbH | Verfahren und vorrichtung zum bearbeiten von baugruppen wie insbesondere von schlauchabschnitten |
CN112959742B (zh) * | 2021-02-02 | 2022-12-02 | 湖北博凯斯新材料科技有限公司 | 一种方形纤维分滤袋一次成型连续加工装置及方法 |
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2015
- 2015-07-07 TR TR2018/11312T patent/TR201811312T4/tr unknown
- 2015-07-07 US US15/324,238 patent/US20170157881A1/en not_active Abandoned
- 2015-07-07 EP EP15734391.4A patent/EP3172044B1/en not_active Not-in-force
- 2015-07-07 JP JP2017500842A patent/JP2017528338A/ja active Pending
- 2015-07-07 PT PT157343914T patent/PT3172044T/pt unknown
- 2015-07-07 ES ES15734391.4T patent/ES2680473T3/es active Active
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US5288284A (en) * | 1991-12-16 | 1994-02-22 | Windmoeller & Hoelscher | Method for making bags and an apparatus for carrying out this method |
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WO2016005375A1 (en) | 2016-01-14 |
PT3172044T (pt) | 2018-08-03 |
US20170157881A1 (en) | 2017-06-08 |
EP3172044A1 (en) | 2017-05-31 |
CN106536387A (zh) | 2017-03-22 |
EP3172044B1 (en) | 2018-06-06 |
ES2680473T3 (es) | 2018-09-07 |
EP2965900A1 (de) | 2016-01-13 |
TR201811312T4 (tr) | 2018-08-27 |
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