CN1236971C - 真空包装袋 - Google Patents

真空包装袋 Download PDF

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CN1236971C
CN1236971C CNB008191719A CN00819171A CN1236971C CN 1236971 C CN1236971 C CN 1236971C CN B008191719 A CNB008191719 A CN B008191719A CN 00819171 A CN00819171 A CN 00819171A CN 1236971 C CN1236971 C CN 1236971C
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packaging bag
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安重根
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ZEROPARK CO Ltd
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Abstract

本发明公开了一种真空包装袋100。该真空包装袋100包括一个筒状的平的主体，以及一个或多个带压纹的中间条板103，主体由第一和第二板101和102组成，当所述带压纹的中间条板103插入到所述第一和第二板101和102之间时，该带压纹的中间条板103与主体的两个侧端连接在一起。当所述带压纹的中间条板103插入到第一和第二板101和102之间时，该每一个带压纹的中间条板103的一侧端与第一和第二板的连接区域104连接在一起。该带压纹的中间条板103的宽度可以是所述主体的宽度的一半或更小。

Description

真空包装袋
发明领域
本发明主要涉及一种应用于真空包装设备上的真空包装袋，尤其是，涉及一种设置有中间条板的真空包装袋，该条板上形成有预定的压纹图案，包装袋分别附着在第一和第二板条上，藉此，与现存的真空包装袋相比较，它减少了抽成真空过程所需要的时间并且其内的真空状态可以可靠地保持相当长的一段时间。
背景技术
通常，真空包装方法是这样一种技术：将食物装在袋里，在排出了袋中的空气后，将袋子密封，这样通过阻止食物氧化而使食物能储存一段较长的时间。对于长时间储存食物来说虽然也可以采用将食物储存在低温冰箱内的方法，但是将食物真空包装以避免食物与空气接触的方法更为有效。
附图1是一幅透视图，它表示了一种传统的真空包装设备和应用于该设备的真空包装袋。附图2所示是沿图1中A-A线的截面。
如附图1和2所示，传统的真空包装设备包括一个底座10，一个压盖20，分别固定到底座10和压盖20上的下部和上部橡胶夹紧装置23和24，一个用来在真空包装袋30被插进底座10和压盖20之间的空间中后将真空包装袋30抽成真空的真空泵25，一个位于底座10通过加热的方法密封包装袋30的加热器21，以及一个加热器夹紧装置22。
根据传统的真空包装设备进行下述操作：将装有食物的真空包装袋30的开口端置于下部橡胶夹紧装置23上，向下旋转压盖20使上部橡胶夹紧装置23与下部橡胶夹紧装置24接触。在此状态下，真空泵工作，这样由下部和上部橡胶夹紧装置23和24形成的一个空间被抽成真空。如果使用的是典型的乙烯基袋，这时不能轻易地排出袋中的空气。然而，附图1和2中表示的真空包装袋30在两个板条中的至少一个的内表面上全部有压纹，则袋30中的空气可以被轻易地排放出来。在袋30被抽成真空后，加热器21启动，通过加热器21产生的热量将袋30的开口端密封。
然而，根据传统的真空包装袋，由于在两个板条中的至少一个的内表面上全部有压纹，其制作成本高，在压纹部分破裂的情况下不可能抽成真空，并且当袋子里的东西是粉末状时，粉末会通过形成在袋子30上的压纹空气通道泄漏出来。
此外，由于压纹完全形成在两个板条中的至少一个的内表面上，因此袋子厚度增加了，从而给使用者带来不便。因为压纹部分是通过高温下辊子接合的方式制成的，在加工过程中压纹部分很容易被破坏。
更进一步地，由于压纹形成在两个板条中的至少一个的整个内表面上，商标或图案就需要在袋子完成以前印在一个平的下部上，这样做很不方便。
                         发明概述
因此，本发明紧记现有技术发生的上述问题，本发明的目的之一是提供一种真空包装袋，它能减少制造成本，避免在抽真空时失败。
本发明的另一个目的是提供一种真空包装袋，它可以避免粉末状的东西泄漏出来，并且它的厚度减小了，能够让使用者看见袋内的东西并且很容易在袋子上印上商标或图案。
为实现上述目的，本发明提供了一种真空包装袋，它包括一个筒状的平的主体，以及一个或多个带压纹的中间条板，主体由第一和第二板组成，当所述带压纹的中间条板插入到第一和第二板之间时，该带压纹的中间条板的一侧端和所述第一和第二板的连接区域连接在一起。
                      附图简要说明
本发明上述的和其它的目的、特点和其它的优点将从下述的结合附图的详细描述中更清楚地被理解，其中：
图1是一幅透视图，显示一个传统的真空包装设备和用于该设备的真空包装袋；
图2是沿图1中A-A线的横截面；
图3是一幅透视图，显示一个根据本发明的一个最佳实施方式的真空包装袋可以使用的真空包装设备；
图4是一幅放大的透视图，显示图3中所示的扩张器；
图5是一幅透视图，显示本发明的真空包装袋；
图6是一幅平面图，显示本发明的真空包装袋；
图7是沿图6中B-B线的横截面。
                     具体实施方式的描述
图3是一幅透视图，表示根据本发明的一个最佳实施方式的真空包装袋可以使用的一个真空包装设备。图4是一幅放大的透视图，表示图3中所示的一个扩张器。图5是一幅透视图，表示本发明的真空包装袋。图6是一幅平面图，表示本发明的真空包装袋。图7是沿图6中B-B线的一个横截面。
如图5至7所示，真空包装袋100包括一个筒状的平的主体和两个带压纹的中间条板103。该筒状的平的主体由第一和第二板101和102组成。每一个带压纹的中间条板103均具有压纹空气通道103a。第一和第二板101和102在它们的侧端，也就是所谓的连接区域104处连接在一起。当每一个带压纹的中间条板103插入到第一和第二板101和102之间时，所述带压纹的中间条板的一个侧端和所述连接区域104连接在一起。
在这样的情形下，每一个带压纹的中间条板103最好由容易连接到第一和第二板101和102上的热密封性材料制成，比如聚乙烯(PE)、高密度聚乙烯(HDPE)或者聚丙烯。从而，带压纹的中间条板103被有效地连接到第一和第二板101和102上。
每一个带压纹的中间条板103的宽度最好为平的主体的宽度的一半或更小。
在主体的一个表面上以有规则的间隔印上日历以表明包装食物时的日期。也就是说，在主体的一个表面上印有表明月份的数字1到12和表明日期的数字1到31。
如图3和4所示，真空包装袋应用于其上的真空包装设备包括一个含有各种电力设备的电力设备盒70、一个连接到电力设备盒70上的底座50、一个可转动地连接到底座50上的压盖60、一个位于电力设备盒70中的真空泵(未示出)、一个真空包装袋的一端位于其上的下部橡胶夹紧装置52、一个可以和下部橡胶夹紧装置52接触的上部橡胶夹紧装置62、一个位于下部橡胶夹紧装置52前方的加热器，它加热袋子100的待密封部分、一个位于上部橡胶夹紧装置62前方的加热器夹紧装置61、用来移动加热器夹紧装置61的装置(未示出)、以及可以插入到下部和上部橡胶夹紧装置52和62之间的扩张器80。
如图4所示的情形，扩张器80大致呈Y形。扩张器80包括上部和下部插入板81和82，一个插入弹簧84，一个支撑板83，一个支撑弹簧85，以及上部和下部管子86和87。上部和下部插入板81和82在它们的第一端彼此间隔开，而在它们的第二端可折叠地连接起来。插入弹簧84插入到上部和下部插入板81和82之间。支撑板83的一端水平连接到上部和下部插入板81和82的第二端上，在它们的外表面上有压纹80a。支撑弹簧85弹性地支撑着支撑板83。上部管子86固定到支撑板83上，同时，其环绕着支撑弹簧85的上部和中部。下部管子87的上端绕上部管子86的下端可滑动地配合，其下端固定到底座50上，同时，其环绕着支撑弹簧85的下部。
虽然在图中加热器51位于下部橡胶夹紧装置52的前方，但是加热器51也可以位于下部橡胶夹紧装置52的后方。
根据具体实施方式，进行下述操作。扩张器80的上部和下部插入板81和82插入装有食物的真空包装袋100的一个开口端。此后，压盖60向下旋转到底座50，这样下部橡胶夹紧装置52与上部橡胶夹紧装置62接触。在此状态，真空泵工作。当真空泵工作时，加热器夹紧装置的移动装置将加热器夹紧装置61向上移动到一定程度，同时，由上部和下部橡胶夹紧装置23和24密封的一个空间被抽成真空。这时，虽然扩张器80的上部和下部插入板81和82被插入弹簧84拓宽，但是，随着空气被排放出，由上部和下部插入板81和82形成的角度减小。进一步地，扩张器80上有压纹80a。因此，由于以前存在间隙，虽然下部和上部橡胶夹紧装置52和62挤压真空包装袋100，但是空气很容易被去除。此外，当使用本发明的真空包装袋100时，因为带压纹的中间条板103被插入到下部和上部橡胶夹紧装置52和62之间，所以真空包装袋100里面的空气很容易被排放出去。当真空包装袋里的压力达到一定值时，夹紧装置的移动装置将加热器夹紧装置61降低。在此状态，加热器51启动，从而密封真空包装袋。
对于一个完成的真空包装袋来说，使用者可以看见袋100中的东西，因为平的主体上没有压纹。
如上所述，本发明提供了一种真空包装袋，它能减少制造成本，通过采用带压纹的中间条板防止在抽真空时失败。
此外，本发明提供了一种真空包装袋，它能防止吸入粉末状的东西，并且它的厚度减小了，通过采用平的主体能够让使用者看见袋内的东西并且很容易在袋子上印上商标或图案。
虽然为了便于阐述，公开了本发明的最佳实施方式，本领域的技术人员将理解到，在不背离本发明的如附属权利要求所公开的实质精神和保护范围的情况下，本发明可以有不同的修改、增加和替换。

Claims (4)

1.一种真空包装袋，包括：
一个筒状的平的主体，所述主体由第一和第二板组成；以及
一个或多个带压纹的中间条板，当所述每个带压纹的中间条板插入到所述第一和第二板之间时，该每一个带压纹的中间条板的一侧端与所述第一和第二板的连接区域连接在一起，
其中，所述每个带压纹的中间条板的宽度是所述主体的宽度的一半或更小。
2.如权利要求1所述的真空包装袋，其特征在于：所述每个带压纹的中间条板由容易连接到所述主体上的热密封性材料制成。
3.如权利要求2所述的真空包装袋，其特征在于：所述每个带压纹的中间条板由聚乙烯、高密度聚乙烯或者聚丙烯制成。
4.如权利要求1所述的真空包装袋，其特征在于：在所述主体的一个表面上印有日历以表明包装食物时的日期。
CNB008191719A 2000-02-25 2000-04-01 真空包装袋 Expired - Fee Related CN1236971C (zh)

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CN1434778A (zh) 2003-08-06
KR20010084473A (ko) 2001-09-06
EP1448446A2 (en) 2004-08-25
JP3759716B2 (ja) 2006-03-29
WO2001062602A2 (en) 2001-08-30
CA2401363A1 (en) 2001-08-30
US6883665B1 (en) 2005-04-26
JP2003524561A (ja) 2003-08-19
CA2401363C (en) 2006-11-07
AU2000236813A1 (en) 2001-09-03
EP1448446A4 (en) 2005-06-22
AU2000236813A8 (zh) 2001-11-15
KR100349516B1 (ko) 2002-08-22
KR200190296Y1 (ko) 2000-07-15

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