CN112431027A - 一种环形输送带及其制造方法 - Google Patents
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Abstract
本发明提供了一种环形输送带及其制造方法,所述输送带由管状无缝骨架织物和通过PU胶水涂覆在骨架织物表面的PU层组成。所述制造方法包括:步骤S1:骨架织物环形定型;步骤S2:骨架织物浸渍PU胶水;步骤S3:骨架织物表面涂覆PU并塑化;步骤S4:裁切成型。本发明所述输送带为环形无接缝,带体厚度精度高、厚度均匀、强度一致,尺寸稳定,使用寿命长,加工方法简单可靠。
Description
技术领域
本发明涉及环形输送带技术领域,具体为一种环形输送带及其制造方法。
背景技术
轻型输送带在使用中一般都为开口环形带,环形带的结合处一般通过打齿、接头方式获得,获得产品的接头部位精度不够,且强度不高。接头部位的厚度及密度与带体不一致,从而无法保证整个带体精度一致。
发明内容
针对现有技术存在的上述问题,本发明的目的是提供一种环形输送带及其制造方法,所述输送带为环形无接缝,带体厚度精度高、厚度均匀、强度一致,尺寸稳定,使用寿命长,加工方法简单可靠。
为了实现上述目的,本发明所采用的技术方案是:
一种环形输送带,所述输送带由管状无缝骨架织物和通过PU胶水涂覆在骨架织物表面的PU层组成。
作为上述技术方案的进一步改进:
所述骨架织物为环形,所述骨架织物有上下两层织物,两层织物的两边缘连续地连接在一起成管状织物,上层织物由表经和表纬编织组成,下层织物由里经和里纬组成,表/里经纬纱线密度为:30ⅹ40根/英寸。
表经/里经纱线规格:0.3mm超低收缩聚酯单丝,表纬/里纬纱线规格:1000D超低收缩聚酯长丝,加捻:100转/米。
一种制造方法,用于制造上述输送带,所述制造方法包括:
步骤S1:骨架织物环形定型;
步骤S2:骨架织物浸渍PU胶水;
步骤S3:骨架织物表面涂覆PU并塑化;
步骤S4:裁切成型。
步骤S1中,通过两个可调节位置的张力辊将管状的骨架织物张开,定型参数为:温度180℃,张力20kg。
步骤S2中,骨架织物保持在张力辊上,将PU胶水涂覆在骨架织物表面,利用刮刀将PU胶水涂覆均匀,胶水固化温度为160℃。
步骤S3中,PU涂覆料经过红外加热器加热塑化,塑化温度165~180℃,同时通过重量在线监测系统实时监测控制带体的均匀度,使带体的厚度误差控制在±5丝范围内,通过压辊8压紧PU层。
本发明的有益效果是:所述输送带为环形无接缝,带体厚度精度高、厚度均匀、强度一致,尺寸稳定,使用寿命长;所述加工方法简单可靠,定型、浸渍胶水和涂覆PU层可在同一装置完成,浸渍的PU胶水可以固定织物的纱线,防止纱线移动,进一步为输送带提供稳固的增强体,同时PU胶水用于粘结表面的PU层,重量在线监测系统通过监测固定面积带体的重量变化反映织物厚度的变化,并通过压辊调节带体厚度,提高输送带的精度和均匀性。
附图说明
图1为本发明一个实施例的输送带结构示意图。
图2为本发明一个实施例的骨架织物的编织形态示意图。
图3为本发明一个实施例的输送带加工示意图。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是,此处所描述的具体实施方式仅用于说明和解释本发明,并不用于限制本发明。
为了便于描述,在这里可以使用空间相对术语,如“在……之上”、“在……上方”、“在……上表面”、“上面的”等,用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是,空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如,如果附图中的器件被倒置,则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而,示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位(旋转90度或处于其他方位),并且对这里所使用的空间相对描述作出相应解释。
一种环形输送带,如图1所示,呈环形,包括管状无缝骨架织物10和涂覆在骨架织物10表面的PU层11。
所述骨架织物10为管状织物,其表面和反面组织结构相同,均为1/1平纹。
骨架织物10的编织形态如图2所示,为环形,图1和图2为同一视角的示意图。骨架织物10相当于有上下两层织物,两层织物的两边缘连续地连接在一起成管状织物。上层织物由表经2和表纬1编织组成,下层织物由里经4和里纬3组成,表/里经纬纱线密度为:30ⅹ40根/英寸。
表经2/里经4纱线规格:0.3mm超低收缩聚酯单丝。表经2/里经4使环形的骨架织物10强力层基材的横向具有一定的硬挺性。所述横向为骨架织物10的宽度方向,或说平行于所述管状织物所在环形的中心线的方向。
表纬1/里纬3纱线规格:1000D超低收缩聚酯长丝,加捻:100转/米。表纬1/里纬3承担环形强力层的主要强力。
所述管状骨架织物10的织造方法为:利用有梭织机织造特点按投纬顺序逐纬编织,投表纬1时表经2分成两层形成梭口与表纬1交织,里经4全部沉于织物下层不与表纬1交织;投里纬3时,表经2全部提起不与里纬3交织,里经4分成两层形成梭口与里纬3交织。
所述管状骨架织物10结构的两折边处会出现密度不匀,且该折边处有明显折痕,可通过调节折边处经密来降低折痕效果。
一种制造上述环形输送带的方法,如图3所示,包括如下步骤:
步骤S1:骨架织物10环形定型。
此步骤中,通过两个可调节位置的张力辊5将管状或环形的骨架织物10张开,消除骨架织物10基材折痕,提高表面平整性,同时通过调节张力辊5可微调作为增强体的骨架织物10的尺寸。
定型参数为:温度180℃,通过红外加热器7加热,张力20kg。
步骤S2:骨架织物10浸渍PU胶水。
此步骤中,骨架织物10保持在张力辊5上,将PU胶水涂覆在骨架织物10表面,利用刮刀6将PU胶水涂覆均匀。
胶水固化温度为160℃,通过红外加热器7加热,骨架织物10通过浸渍PU胶水,一方面可以固定织物的纱线,防止纱线移动,进一步为输送带提供稳固的增强体,另一方面PU胶水用于粘结表面的PU层11。
步骤S3:骨架织物10表面涂覆PU并塑化。
此步骤中,涂覆的PU涂覆料可为粉末状,PU涂覆料经过红外加热器7加热塑化,塑化温度165~180℃。同时,通过压辊8压紧PU层11,压辊8同时起到控制和调节涂覆的PU层11厚度的作用。
另外,此步骤中,通过重量在线监测系统9实时监测控制带体的均匀度,使带体的厚度误差控制在±5丝范围内,其中,1mm=100丝。提高了带体厚度的精度和均匀性。
重量在线监测系统9对支撑在张力辊5上的骨架织物10进行称重,具体的,重量在线监测系统9支撑并称重固定面积(如1平方米)的织物,即重量在线监测系统9监测到的重量的变化可以反映织物厚度的变化。随着张力辊5的转动,织物被带动运行,实现重量在线监测系统9对织物的整体动态监测。当重量在线监测系统9监测到的重量波动时,表示织物此段的厚度不均匀。具体操作时,当重量在线监测系统9监测到的重量波动范围超过设定值时,可以调节刮刀6和骨架织物10之间的间隙控制PU粉料的涂覆量,实现对织物厚度的调节和控制,使加工后的织物厚度更均匀。
步骤S4:裁切成型。根据要求裁切成需要的宽度尺寸。
最后有必要在此说明的是:以上实施例只用于对本发明的技术方案作进一步详细地说明,不能理解为对本发明保护范围的限制,本领域的技术人员根据本发明的上述内容作出的一些非本质的改进和调整均属于本发明的保护范围。
Claims (7)
1.一种环形输送带,其特征在于,所述输送带由管状无缝骨架织物(10)和通过PU胶水涂覆在骨架织物(10)表面的PU层(11)组成。
2.根据权利要求1所述的输送带,其特征在于:所述骨架织物(10)为环形,所述骨架织物(10)有上下两层织物,两层织物的两边缘连续地连接在一起成管状织物,上层织物由表经(2)和表纬(1)编织组成,下层织物由里经(4)和里纬(3)组成,表/里经纬纱线密度为:30ⅹ40根/英寸。
3.根据权利要求2所述的输送带,其特征在于:表经(2)/里经(4)纱线规格:0.3mm超低收缩聚酯单丝,表纬(1)/里纬(3)纱线规格:1000D超低收缩聚酯长丝,加捻:100转/米。
4.一种制造方法,用于制造权利要求1~3任一所述的输送带,其特征在于,所述制造方法包括:
步骤S1:骨架织物(10)环形定型;
步骤S2:骨架织物(10)浸渍PU胶水;
步骤S3:骨架织物(10)表面涂覆PU并塑化;
步骤S4:裁切成型。
5.根据权利要求4所述的制造方法,其特征在于:步骤S1中,通过两个可调节位置的张力辊(5)将管状的骨架织物(10)张开,定型参数为:温度180℃,张力20kg。
6.根据权利要求5所述的制造方法,其特征在于:步骤S2中,骨架织物(10)保持在张力辊(5)上,将PU胶水涂覆在骨架织物(10)表面,利用刮刀(6)将PU胶水涂覆均匀,胶水固化温度为160℃。
7.根据权利要求2所述的制造方法,其特征在于:步骤S3中,PU涂覆料经过红外加热器(7)加热塑化,塑化温度165~180℃,同时通过重量在线监测系统(9)实时监测控制带体的均匀度,使带体的厚度误差控制在±5丝范围内,通过压辊(8)压紧PU层(11)。
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Cited By (3)
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CN113942280A (zh) * | 2021-11-10 | 2022-01-18 | 上海永利输送系统有限公司 | 一种转弯机用输送带的制备方法 |
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