CN1712594A - 高撕裂交织皮带织物 - Google Patents

高撕裂交织皮带织物 Download PDF

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CN1712594A
CN1712594A CNA200510080920XA CN200510080920A CN1712594A CN 1712594 A CN1712594 A CN 1712594A CN A200510080920X A CNA200510080920X A CN A200510080920XA CN 200510080920 A CN200510080920 A CN 200510080920A CN 1712594 A CN1712594 A CN 1712594A
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weft yarns
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CN1712594B (zh
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E·K·李
E·L·海恩斯
D·B·迪恩斯
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ContiTech America Co Ltd
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Goodyear Tire and Rubber Co
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Abstract

用于具有纵向或传送方向抗撕裂性提高的特征的传送带的机织增强织物。这种机织增强织物包括许多纬纱和基本上正交于该许多纬纱排列的许多经纱。经纱通过纬纱机织确定了基本上平行于第一和第二平面排列的许多通道。至少一根纬纱位于每个通道中，且两根纬纱位于每个第一和第二平面中的至少一个通道中。

Description

高撕裂交织皮带织物
技术领域
本发明涉及交织织物，尤其是涉及用于增强传送带的机织织物。
背景技术
无接头皮带常用于各种不同的杂乱环境应用，例如用于诸如包装传送的各种材料传送应用的传送带。传统的传送带由植入到聚氯乙烯等的柔性基质内的机织增强织物构成。该增强织物通过多根经纱与多根纬纱交织织成。经纱沿皮带纵向或传送方向延伸，而纬纱与经纱垂直设置。经纱的断裂强度定义为皮带的拉伸强度。
如果源自所传送材料的外来物体插入或塞入传送带结构中，并保持与运动皮带相对静止的接触位置，传送带就容易发生平行于皮带传送方向和平行于经纱方向的纵向撕裂。例如，这种外来物体会夹在或挤在材料传送系统中相邻传送带之间的转移连接处。撕裂敏感性来自皮带内的增强织物不能抵抗静止的外来物体所施加的力。皮带的撕裂强度主要取决于纬纱的断裂强度，以及这些纱为抵抗外来物体施加的应力而如何取向。传统传送带的增强织物缺乏足够的撕裂强度，以避免由于这种静止外来物体的接触产生的纵向撕裂。
因此需要一种用于传送带的增强织物，其特征是传送方向上的抗撕裂性提高。
发明内容
本发明总体上涉及传送带，特别是用于传送带的机织增强织物，其特征是诸如纵向或传送方向的抗撕裂性增强的优异性能。在一个实施方案中，该织物包括基本上与许多纬纱正交机织的许多经纱。经纱与纬纱交织，以确定基本上平行于第一和第二平面排列的许多通道。至少一根纬纱位于每个通道中，且两根纬纱位于每个第一和第二平面中的至少一个通道中。
在本发明的另一个实施方案中，织物包括基本上与许多纬纱正交机织的许多经纱。经纱与纬纱交织，以确定基本与第一和第二平面平行排列的许多通道。两根纬纱位于每个通道中。
本领域普通技术人员通过结合附图的以下详细描述将更容易理解本发明的各种其他优点和特征。
附图说明
图1是根据本发明原理的织纹图案的示意图；
图2是包括根据图1的织纹图案的机织织物的皮带的纵剖面图；
图3是用于根据本发明作为选择的实施方案的皮带的类似图2的机织织物的纵剖面图；和
图4是用于根据本发明又一个作为选择的实施方案的皮带的类似图2的机织织物的纵剖面图。
具体实施方式
参照图1，所示重复织纹图案代表本发明的机织增强织物。织纹图案中的直列方块代表经纱，而横行代表纬纱。行与列交叉处的空白方块指对应的纬纱覆盖了对应的经纱。同样，填充的方块指对应的经纱覆盖了对应的纬纱。
当机织本发明的机织织物时，多次重复从左至右和从下至上读取的织纹图案，使其足以得到预期宽度和长度的机织织物。经纱根据织纹图案的规定相继升起和降下，而纬纱插入或投入由升起和降下的经纱形成的梭口或通道中。图1的图案是每个梭口中有两个梭子的2×1交织破斜纹组织。
继续参照图1，起始开口指令是升起除降下的第三根经纱外的所有经纱。挑起第一和第二根纬纱。第二个开口指令是降下除升起的第一根经纱外的所有经纱。挑起第三和第四根纬纱。第三个开口指令是升起除降下的第二根经纱外的所有经纱。挑起第五和第六根纬纱。第四个开口指令是降下除升起的第四根经纱外的所有经纱。挑起第七和第八根纬纱。第五个开口指令是升起除降下的第一根经纱外的所有经纱。挑起第九和第十根纬纱。第六个开口指令是降下除升起的第一根经纱外的所有经纱。挑起第十一和第十二根纬纱。第七个开口指令是升起除降下的第四根经纱外的所有经纱。挑起第十三和第十四根纬纱。最终开口指令是降下除升起的第二根经纱外的所有经纱。挑起第十五和第十六根纬纱以得到织纹图案。
参照图2，皮带10通常包括嵌入或包入诸如聚氯乙烯、聚氨酯、硅橡胶等的基质13内的、具有足够的柔韧性以保护织物并在使用期间保持接触的机织增强织物11。皮带10可用于单层皮带结构或多层皮带结构。织物11包括许多沿皮带10的传送方向或纵向15延伸的经纱12、14、16、18。多根共平面纬纱对20、22排布在通常用参考号24表示的第一面或第一层中，并与经纱12、14、16、18垂直布置。多根共平面纬纱对26、28排布在通常用参考号30表示的第二层或第二面中，同样与经纱12、14、16、18垂直布置。基质13部分填充和占据了纱线12、14、16、18、20、22之间的其他空闲空间。
如图1的织纹图案提供的那样，经纱12、14、16、18与纬纱对20、22和纬纱对26、28机织。第一层24中的相邻纬纱对20、22被经纱12、14、16、18中的两根横向分开。类似地，第二层30中的相邻纬纱对26、28被经纱12、14、16、18中的两根横向分开。每个单独的纬纱对20、22被经纱12、14、16、18中的三根与相邻纬纱对26、28分开。在一个特殊层24的每个梭道或通道27中的纬纱对20、22和在平行于层24的另一个特殊层30的每个梭道或通道29中的纬纱对26、28提高了机织增强织物11在纵向15上的撕裂强度。
通道27、29平行于纵向15观察优选具有基本相等的截面积，尽管本发明没有这样限定，并排布在特殊层24、30中。层24中的相邻通道27和纬纱对20、22被经纱12、14、16、18中的两根与层30中的相邻通道29和纬纱对26、28分开。分开通道27、29的具体经纱12、14、16、18取决于图1的织纹图案中的位置和机织织物11中的具体层24、30。层24中的每个通道27和纬纱对20、22与层30中的两个紧邻通道29和两对纬纱26、28邻接，但与它们在不同的平面中，并被经纱12、14、16、18的两根与紧邻的通道29分开。类似地，层30中的每个通道29和纬纱对26、28与层24中的两个紧邻通道27和两对纬纱20、22邻接，但与它们在不同的平面中，并被经纱12、14、16、18中的两根与紧邻的通道27分开。
经纱12、14、16、18的直径可小于，或相当于旦数小于纬纱20、22、26、28的。在某些实施方案中，纬纱20和22的直径相同，类似地每根纬纱26的直径与纬纱28相同。在其他实施方案中，纬纱20和22具有不同的直径，类似地纬纱26与28具有不同的直径。在又一个实施方案中，纬纱20、22、26、28都具有基本相同的直径。
经纱12、14、16、18和纬纱20、22、26、28可由这种机织增强织物11中常用的任何合成单丝或纤维形成。例举的材料包括聚酯、聚酰胺，以及这些材料的共聚物和共混物，尽管本发明没有这样限定。
在本发明的一个例举实施方案中，掺入机织增强织物11的皮带10具有约0.05”-约0.30”的厚度和取决于用途的宽度。织物11用聚氯乙烯基质13涂覆。所有经纱12、14、16、18约4100旦或直径为约0.65mm，所有纬纱20、22、26、28约11000旦或直径为约1.05mm。纱12-28由聚酯与聚酰胺的共混物形成。
纬纱对20、22、纬纱对26、28和图1的织纹图案与特殊层24中的所有纬纱20、22和与层24基本平行的特殊层30中的所有纬纱26、28的排布共同赋予了机织增强织物11改进的撕裂强度。在该实施方案中，与传统机织增强织物中撕破单根纬纱相比，这种改进源于不得不割断纬纱对来形成纵向15中的撕裂。
参照根据本发明作为选择的实施方案的图3，其中相同的参考数指图2中相同的特征，机织增强织物11a包括位于层24中相邻纬纱对20、22之间的单根纬纱32，类似地还包括位于层30中相邻纬纱对26、28之间的单根纬纱34。每单根纬纱32、34的直径大于每单根纬纱20、22、26、28的直径。尽管通道27的50％和通道29的50％分别描述成具有单根纬纱32或34，但本发明设想百分比分布可以不同。例如，通道27的30％可包括单根纬纱32，而通道29的60％可包括单根纬纱34。在某些作为选择的实施方案中，层24或层30可具有图2所示结构，而其他层24、30可具有图3所示结构。
参照根据本发明作为选择的实施方案的图4，其中相同的参考数指图2中相同的特征，机织增强织物11b包括位于层24中相邻纬纱对20、22之间的三根纬纱36、38、40，类似地还包括位于层30中相邻纬纱对26、28之间的三根纬纱42、44、46。每单根纬纱36-46的直径小于每单根纬纱20、22、26、28的直径。优选的是纬纱36、38、40具有相同直径，类似地，纬纱42、44、46具有相同直径。尽管通道27的50％和通道29的50％分别描述成具有纬纱36、38、40或纬纱42、44、46，但本发明设想百分比分布可以不同。例如，通道27的40％可包括一组纬纱36、38、40，而通道29的45％可包括一组纬纱42、44、46。在某些作为选择的实施方案中，层24或层30可具有图2或3所示结构，而其他层24、30可具有图4所示结构。
本发明的机织增强织物11在纵向15上具有比传统传送带用机织增强织物结构提高的抗撕裂性和撕裂强度。根据本发明的各种实施方案，这种提高是由于这样的织纹图案结构，该结构要求在每个第一和第二层24、30中的至少一个通道27、29中存在一根以上纬纱(纬纱20、22、26、28；纬纱36-46)。传统的机织增强织物在每个这些通道中仅有单根纬纱，它不能提供足够抵抗由于静止物体陷在传送机中导致的皮带传送方向上撕裂的撕裂强度。
尽管本发明已通过各种优选实施方案的描述进行了说明，并对这些实施方案进行了相当详细的描述，以便说明实施本发明的最佳方式，但申请人的用意并不是限定或以任何方式将附属权利要求的范围限制在这种细节中。本领域普通技术人员很容易发现本发明的精神和范围内的其他优点和修改。本发明本身应该仅由附属权利要求限定。

Claims (18)

1.一种用于皮带的机织织物，包括：
许多纬纱；和
与所述许多纬纱基本正交机织的许多经纱，所述许多经纱与所述许多纬纱交织，以确定基本上与第一和第二平面平行排列的许多通道，其特征在于至少一根所述许多纬纱位于每个所述许多通道中，且两根或多根所述许多纬纱位于每个所述第一和第二平面中的至少一个所述许多通道中。
2.权利要求1的机织织物，其特征在于每根所述许多经纱的直径小于任何所述许多纬纱的直径。
3.权利要求2的机织织物，其特征在于所述许多纬纱具有基本相等的直径。
4.权利要求1的机织织物，其特征在于所述通道具有从基本平行于许多纬纱的纵向看基本相等的截面积。
5.权利要求1的机织织物，其特征在于所述许多纬纱和所述许多经纱由选自聚酯、聚酰胺以及这些聚合物的共聚物和共混物的材料形成。
6.权利要求1的机织织物，其特征在于所述许多纬纱和所述许多经纱以2×1交织破斜纹组织图案机织。
7.权利要求1的机织织物，其特征在于相邻通道被两根所述许多经纱分开。
8.权利要求1的机织织物，其特征在于三根所述许多纬纱位于每个所述第一和第二平面中的至少一个所述许多通道中。
9.包含基质和埋入所述基质中的权利要求1的所述机织织物的用于材料搬运的皮带。
10.一种用于皮带的机织织物，包括：
许多纬纱；和
与所述许多纬纱基本正交机织的许多经纱，所述许多经纱与所述许多纬纱交织，以确定基本上与第一和第二平面平行排列的许多通道，其特征在于两根所述许多纬纱位于每个所述许多通道中。
11.权利要求10的机织织物，其特征在于每根所述许多经纱的直径小于任何所述许多纬纱的直径。
12.权利要求11的机织织物，其特征在于所述许多经纱具有约0.65mm的直径，所述许多纬纱具有约1.05mm的直径。
13.权利要求11的机织织物，其特征在于所述许多经纱具有基本相等的直径。
14.权利要求10的机织织物，其特征在于所述通道具有从基本平行于许多纬纱的纵向看基本相等的截面积。
15.权利要求10的机织织物，其特征在于所述许多纬纱和所述许多经纱由选自聚酯、聚酰胺以及这些聚合物的共聚物和共混物的材料形成。
16.权利要求10的机织织物，其特征在于所述许多纬纱和所述许多经纱以2×1交织破斜纹组织图案机织。
17.权利要求10的机织织物，其特征在于相邻通道被两根所述许多经纱分开。
18.包含基质和埋入所述基质中的权利要求10的所述机织织物的用于材料搬运的皮带。
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