CN114404149A - 一种制造呈聚焦性分布状吸收性芯体的设备及其方法 - Google Patents

一种制造呈聚焦性分布状吸收性芯体的设备及其方法 Download PDF

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CN114404149A
CN114404149A CN202210171572.0A CN202210171572A CN114404149A CN 114404149 A CN114404149 A CN 114404149A CN 202210171572 A CN202210171572 A CN 202210171572A CN 114404149 A CN114404149 A CN 114404149A
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sap
wheel cover
transfer wheel
absorbent core
wrapping object
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李秋红
张�杰
陈安琪
高敏
沙长松
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Beijing Beishute Maternity & Child Articles Co ltd
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Abstract

本发明公开了一种制造呈聚焦性分布状吸收性芯体的设备及其方法,包括:用于SAP下料的镂空转移轮罩及热合压力装置;镂空转移轮罩为旋转轮罩,其内配置有SAP存储下料装置,其表面有多处镂空部位,每处镂空形状均是按照预设的SAP堆积形状的设计图所切剖;镂空转移轮罩位于下层包裹物的传送路径上方;热合压力装置的表面有与SAP的间隔区域相契合的压力面,且内含有加热棒;热合压力装置用于将前方不同工位输送过来的上层包裹物以及堆积有SAP的下层包裹物进行上下热合,以封闭SAP的间隔区域。本发明的制造设备和方法,可批量制造呈聚焦性分布状吸收性芯体,芯体内的SAP呈多聚堆间隔分布且不会转移,克服了现有技术芯体中SAP无序排列而产生的系列问题。

Description

一种制造呈聚焦性分布状吸收性芯体的设备及其方法
技术领域
本发明涉及一种一次性卫生用品制造设备领域,特别是涉及一种制造呈聚焦性分布状吸收性芯体的设备及其方法。
背景技术
一般来说,应用于如卫生巾、失禁垫、尿布等一次性卫生用品的吸收性芯体,其内部通常由绒毛浆与高吸收性聚合物SAP通过无序混合所构成。制作该芯体的工艺方法,一般将粉碎机打散的木浆通过一种传动模轮,与利用一种SAP下料机制下料的SAP,使SAP与绒毛浆在带吹风的模轮中混合,再通过另一种吸风装置将混合后的SAP与绒毛浆从模轮中吸附出来。
(1)在上述结构形式的吸收性芯体中,其内部的绒毛浆和SAP处于无序混合状态,使得SAP很难在芯体内均匀分布。因此,当液体流至SAP量较少的部分时,会导致该区域无法起到有效的锁水作用,反而被起辅助作用的绒毛浆所吸收,这就会导致使用上述吸收性芯体的物品表面会出现大量反渗现象。同理,当液体流至SAP量较多部分时,被干燥状态下保持粉末状的SAP吸收后产生膨润并凝固成较大状凝胶块,当穿戴者使用时,易结成被堆积SAP吸收后产生的凝胶在芯体内发生移动而有的硬块,给使用者带来不适的感受。
(2)在上述结构形式的吸收性芯体中,当尿液或经血浸入芯体时,SAP 利用自身的锁水功能发挥芯体的吸收作用,同时绒毛浆依靠木浆纤维的吸湿特性达到芯体对液体的导流作用。因此,液体在单一芯体上的扩散面积很大程度上依靠于其内部所含的绒毛浆,而绒毛浆由其打散后蓬松的木浆纤维进行对液体的导流作用。纤维的长度、强度、密度等物理性质和分布程度及处理工艺均会影响其导流作用。所以为其选用的绒毛浆种类是考虑芯体扩散效果的重要因素之一。但如上所述芯体通常由高吸收性聚合物 (SAP)和绒毛浆构成,即使不考虑选用的绒毛浆类型,当芯体在同一位置上不断有液体流入时且达到SAP的饱和吸收度后,由于SAP的锁水作用使多出的液体无法进一步下渗而从芯体两侧漏出,使未吸湿的绒毛浆部分无法起到导流作用,导致芯体无法发挥其最大的扩散效果且易在表面有大量水份残留,给人体带来不适感觉。
因此,上述结构的吸收性芯体有待进一步改进,对应地,有必要提供一种改进后的芯体的专用制造设备及制造方法。
发明内容
本发明要解决的技术问题是针对一种特殊性的改进后的吸收性芯体,提供一种专用制造设备及制造方法,该新型吸收性芯体可以避免产生SAP 大块凝胶移动以及高反渗现象,而且还可以具有水平方向上的优异扩散性能,该专用制造设备可满足上述吸收性芯体制造要求,且适用于后期的批量生产。
本发明中所述的改进后的吸收性芯体,是一种呈聚焦性分布状的吸收性芯体,其包括上层包裹物、下层包裹物,在上层包裹物与下层包裹物之间分布有多堆高吸收性聚合物SAP,各堆高吸收性聚合物SAP之间间隔一定距离,且间隔区域的上、下层包裹物之间进行封合。
为解决上述技术问题,本发明采用如下技术方案:
一种制造呈聚焦性分布状吸收性芯体的设备,所述吸收性芯体包括上层包裹物、下层包裹物,在上层包裹物与下层包裹物之间分布有多堆高吸收性聚合物SAP,各堆高吸收性聚合物SAP之间间隔一定距离,且间隔区域的上、下层包裹物之间进行封合;所述设备包括:用于SAP下料的镂空转移轮罩及热合压力装置;所述镂空转移轮罩为旋转轮罩,其内配置有SAP 存储下料装置,其表面有多处镂空部位,每处镂空形状均是按照预设的SAP 堆积形状的设计图所切剖;所述镂空转移轮罩位于下层包裹物的传送路径上方;所述热合压力装置的表面有与SAP的间隔区域相契合的压力面,且内含有加热棒;所述热合压力装置用于将前方不同工位输送过来的上层包裹物以及堆积有SAP的下层包裹物进行上下热合,以封闭SAP的间隔区域。
作为本发明进一步地改进,所述镂空转移轮罩为圆筒状结构,圆筒的一侧开口,另一侧封闭,所述SAP存储下料装置从开口侧伸入。
进一步地,所述热合压力装置的压力面上还设置有凸状纹理,所述凸状纹理用于在吸收性芯体间隔区域形成SAP之间的引流压纹凹道。
进一步地,所述凸状纹理由多个凸点断续分布形成。
进一步地,所述热合压力装置分为可开合的上、下两部分,上、下两部分中,上部分或下部分的压力面设置有凸状纹理。
进一步地,所述镂空转移轮罩的内表面采用防黏连处理。
进一步地,还包括下层包裹物卷轴、下层包裹物传送带、上层包裹物卷轴、上层包裹物传送带、成品吸收性芯体传送带;所述下层包裹物卷轴用于缠绕下层包裹物,下层包裹物可经下层包裹物传送带传送至镂空转移轮罩的下方并接收镂空转移轮罩的下料;所述上层包裹物卷轴用于缠绕上层包裹物,上层包裹物可经上层包裹物传送带传送入热合压力装置内,并与下层包裹物传送带传送来的堆积有SAP的下层包裹物在热合压力装置内进行上下热合,以封闭SAP的间隔区域,形成成品吸收性芯体,成品吸收性芯体可经成品吸收性芯体传送带传送出去。
进一步地,还包括多个导向传导轮,所述导向传导轮分布在上、下层包裹物以及成品吸收性芯体的传送路径上;和/或,还包括用于容纳成品吸收性芯体的成品箱;和/或,在下层包裹物卷轴与下层包裹物传送带之间的下层包裹物传送路径上还设置走料用摆杆。
进一步地,还包括用于SAP废料回收的废料回收装置,所述废料回收装置采用与风机连接的吸附风管连接至镂空转移轮罩内。
本发明还提供了一种利用上述设备制造呈聚焦性分布状吸收性芯体的方法,所述方法包括:镂空转移轮罩的下料:下层包裹物传送至镂空转移轮罩的下方,镂空转移轮罩下料至下层包裹物的上表面,形成多堆高吸收性聚合物SAP;热合压力装置的热压合:热合压力装置将前方不同工位传送过来的上层包裹物以及堆积有SAP的下层包裹物进行上下热合,以封闭SAP 的间隔区域,形成成品吸收性芯体。
通过采用上述技术方案,本发明至少具有以下优点:
本发明的制造设备和制造方法,适用于吸收性芯体批量生产,其采用特殊的镂空转移轮罩与热合压力装置进行配合,可以按人为预期方案下料,制造出一种呈聚焦性分布状吸收性芯体,制造出的吸收性芯体内的SAP呈多聚堆间隔分布且不会转移,克服了现有技术中的芯体中SAP无序排列而产生的系列问题,如可以避免产生SAP大块凝胶移动以及高反渗现象,而且还可以具有水平方向上的优异扩散性能。
附图说明
上述仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,以下结合附图与具体实施方式对本发明作进一步的详细说明。
图1为一次性卫生用品的吸收性芯体的局部剖面结构示意图;
图2为一次性卫生用品的吸收性芯体的结构示意图;
图3一次性卫生用品的吸收性芯体的立体结构示意图;
图4是本发明一实施例中的制造呈聚焦性分布状吸收性芯体的设备的结构示意图。
具体实施方式
如图1-3所示,是一种特殊性的改进后的吸收性芯体,该吸收性芯体,包括上层包裹物101、下层包裹物102,上层包裹物101和下层包裹物102 均采用含亲水纤维的非织造布。在上层包裹物101与下层包裹物102之间分布有多堆高吸收性聚合物SAP 103,各堆高吸收性聚合物SAP 103之间间隔一定距离,形成间隔区域104,间隔区域104处的上、下层包裹物101、 102之间进行封合。间隔区域104表面设置有用于在SAP之间进行引流的压纹凹道105。压纹凹道优选采用多个凹点断续分布的形式。
此处需要说明的是,上述吸收性芯体的整体厚度约5mm左右,图1中仅是为了示意性的显示多堆高吸收性聚合物SAP 103的高度较间隔区域偏高,但图中的高度差不代表实际的高度差。
上述吸收性芯体,可将高吸收性聚合物SAP定量定点稳固至表面,并对SAP间隔区域进行封合,能够有效避免使用者在穿戴时由于一些其它动作而使已经彭润后的SAP结块在芯体内发生移动从而带来的不舒适的感受,也会较一般使用绒毛浆与SAP混合的吸收性芯体的表面更加干爽。另外,上述吸收性芯体可设置引流的压纹凹道,利用压纹凹道替代绒毛浆起到导流作用,相对于绒毛浆与SAP无序混合的吸收芯体,可以避免因SAP达到饱和吸收后液体再次从同一位置流入时无法渗下的问题,通过压纹凹道可以使液体在水平方向上可以进行扩散,从而在各堆SAP之间进行引流扩散,避免了液体从芯体两侧漏出以及从表面反渗的问题,吸收效果更好。
现有制作吸收性芯体的工艺方法,不适用于上述的吸收性芯体。且若使用如罩片等简易装置对需要间隔的SAP进行凹压,也不适合后期的批量生产,因此需要提供一种专用的制造设备和制造方法。
根据对上述吸收性芯体的描述,而该吸收性芯体需要使SAP按预期分布在其内部不同区域,而现有设备的SAP的下料均是无序分布在吸收性芯体内部,因此,该设备主要需要解决SAP的下料问题。
如图4所示,本实施例的制造设备包括用于SAP下料的镂空转移轮罩1,镂空转移轮罩1为圆筒状结构的旋转轮罩,圆筒的一侧开口,另一侧封闭,开口侧伸入有SAP存储下料装置2,镂空转移轮罩1可由伺服电机等带动旋转,镂空转移轮罩1表面有多处镂空部位,每处镂空形状均是按照预设的 SAP堆积形状的设计图所切剖;镂空转移轮罩1位于下层包裹物102的传送路径上方。
使用时,先在SAP存储下料装置2内装入SAP,下层包裹物102传送至镂空转移轮罩1的下方,当SAP在转移轮内部下料时,SAP会通过镂空部位落至下层包裹物102的上表面,此时上表面的SAP会按照人为预想的形状呈堆积状分布,形成多堆高吸收性聚合物SAP。鉴于在卫生用品的制作工艺中,可能会需要喷胶的特殊工艺,因此在该镂空转移轮罩1的内表面会进行特殊加工处理,如采用防黏连处理,防止在生产时会有杂物粘连问题。
当SAP按上述方法下料至下层包裹物102表面上时,考虑到人体使用时会导致SAP在吸收芯体内分散,若用喷胶工艺对其固定,不仅不牢靠且过量热熔胶会对人体有一定危害,同时也会影响该吸收性芯体的性能。因此,本实施例中的制造设备中采用了具有加热功能的热合压力装置3来解决该问题。
如图4所示,热合压力装置3的表面有与SAP的间隔区域相契合的压力面,且内含有加热棒,加热棒能够控制其表面的温度;当SAP呈堆积状分布在下层包裹物102表面时,此时从另一工位过来的上层包裹物101与之覆和,形成上下两层结构。这时,调整热合压力装置3的温度和与该吸收性芯体的间隙进行上下热合,此时SAP的间隔区域就会被封合,形成成品吸收性芯体,使SAP牢牢固定在通过上述镂空转移轮罩1镂空处所下料的区域部分,而不会使SAP随使用者的穿戴而在该吸收介质中移动。
上述热合压力装置3分为可开合的上、下两部分,上、下两部分中,上部分(或下部分)的压力面优选设置有凸状纹理,另一部分为平面结构。凸状纹理可以在吸收性芯体间隔区域形成SAP之间的引流压纹凹道。凸状纹理优选但不限于由多个凸点断续分布形成。
如图4所示,上述设备还包括下层包裹物卷轴4、下层包裹物传送带5、上层包裹物卷轴6、上层包裹物传送带7、成品吸收性芯体传送带8;
下层包裹物102缠绕在下层包裹物卷轴4上,下层包裹物102可经下层包裹物传送带5传送至镂空转移轮罩1的下方并接收镂空转移轮罩1的下料;其中,SAP存储下料装置2可通过支架安装在镂空转移轮罩1下方的下层包裹物传送带5的固定部分。
上层包裹物101缠绕在上层包裹物卷轴6上,上层包裹物101可经上层包裹物传送带7传送入热合压力装置3内,并与下层包裹物传送带5传送来的堆积有SAP的下层包裹物102在热合压力装置3内进行上下热合,以封闭SAP的间隔区域,形成成品吸收性芯体,成品吸收性芯体可经成品吸收性芯体传送8带传送出去。在在传送路径的末端,还可设置还包括用于容纳成品吸收性芯体的成品箱9。
上述设备还包括多个导向传导轮10,导向传导轮10分布在上、下层包裹物以及成品吸收性芯体的传送路径上,起到导向作用。
另外,在下层包裹物卷轴4与下层包裹物传送带5之间的下层包裹物传送路径上还设置走料用摆杆11,方便下层包裹物102的走料。
由于SAP在下料过程中,下料后在镂空转移轮罩1的底部的非镂空区域会残留一些未漏掉的SAP,针对这部分SAP,可采用上述于SAP废料回收的废料回收装置12进行回收,具体可采用与风机连接的吸附风管连接至镂空转移轮罩内。通过启动风机,可以将残留在非镂空区域内的未漏掉的SAP 通过吸附风管吸出。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,本领域技术人员利用上述揭示的技术内容做出些许简单修改、等同变化或修饰,均落在本发明的保护范围内。

Claims (10)

1.一种制造呈聚焦性分布状吸收性芯体的设备,其特征在于,所述吸收性芯体包括上层包裹物、下层包裹物,在上层包裹物与下层包裹物之间分布有多堆高吸收性聚合物SAP,各堆高吸收性聚合物SAP之间间隔一定距离,且间隔区域的上、下层包裹物之间进行封合;
所述设备包括:用于SAP下料的镂空转移轮罩及热合压力装置;
所述镂空转移轮罩为旋转轮罩,其内配置有SAP存储下料装置,其表面有多处镂空部位,每处镂空形状均是按照预设的SAP堆积形状的设计图所切剖;所述镂空转移轮罩位于下层包裹物的传送路径上方;
所述热合压力装置的表面有与SAP的间隔区域相契合的压力面,且内含有加热棒;所述热合压力装置用于将前方不同工位输送过来的上层包裹物以及堆积有SAP的下层包裹物进行上下热合,以封闭SAP的间隔区域。
2.根据权利要求1所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,所述镂空转移轮罩为圆筒状结构,圆筒的一侧开口,另一侧封闭,所述SAP存储下料装置从开口侧伸入。
3.根据权利要求1所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,所述热合压力装置的压力面上还设置有凸状纹理,所述凸状纹理用于在吸收性芯体间隔区域形成SAP之间的引流压纹凹道。
4.根据权利要求3所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,所述凸状纹理由多个凸点断续分布形成。
5.根据权利要求3所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,所述热合压力装置分为可开合的上、下两部分,上、下两部分中,上部分或下部分的压力面设置有凸状纹理。
6.根据权利要求1-5任一项所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,所述镂空转移轮罩的内表面采用防黏连处理。
7.根据权利要求1-5任一项所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,还包括下层包裹物卷轴、下层包裹物传送带、上层包裹物卷轴、上层包裹物传送带、成品吸收性芯体传送带;
所述下层包裹物卷轴用于缠绕下层包裹物,下层包裹物可经下层包裹物传送带传送至镂空转移轮罩的下方并接收镂空转移轮罩的下料;
所述上层包裹物卷轴用于缠绕上层包裹物,上层包裹物可经上层包裹物传送带传送入热合压力装置内,并与下层包裹物传送带传送来的堆积有SAP的下层包裹物在热合压力装置内进行上下热合,以封闭SAP的间隔区域,形成成品吸收性芯体,成品吸收性芯体可经成品吸收性芯体传送带传送出去。
8.根据权利要求7所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,还包括多个导向传导轮,所述导向传导轮分布在上、下层包裹物以及成品吸收性芯体的传送路径上;
和/或,还包括用于容纳成品吸收性芯体的成品箱;
和/或,在下层包裹物卷轴与下层包裹物传送带之间的下层包裹物传送路径上还设置走料用摆杆。
9.根据权利要求1-5任一项所述的制造呈聚焦性分布状吸收性芯体的设备,其特征在于,还包括用于SAP废料回收的废料回收装置,所述废料回收装置采用与风机连接的吸附风管连接至镂空转移轮罩内。
10.一种制造呈聚焦性分布状吸收性芯体的方法,其特征在于,利用权利要求1-9任一项所述的制造呈聚焦性分布状吸收性芯体的设备进行制造,所述方法包括:
镂空转移轮罩的下料:下层包裹物传送至镂空转移轮罩的下方,镂空转移轮罩下料至下层包裹物的上表面,形成多堆高吸收性聚合物SAP;
热合压力装置的热压合:热合压力装置将前方不同工位传送过来的上层包裹物以及堆积有SAP的下层包裹物进行上下热合,以封闭SAP的间隔区域,形成成品吸收性芯体。
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CN208388862U (zh) * 2017-07-28 2019-01-18 广州宇然膜丽无纺制品有限公司 一种含蚕丝接触层结构的护垫
CN113692266A (zh) * 2019-04-15 2021-11-23 株式会社瑞光 穿着物品的制造方法、穿着物品以及穿着物品的制造装置
CN215385220U (zh) * 2021-07-19 2022-01-04 杭州千芝雅卫生用品有限公司 一种具备3d面层压纹的吸湿结构
CN217744814U (zh) * 2022-02-24 2022-11-08 北京倍舒特妇幼用品有限公司 一种制造呈聚焦性分布状吸收性芯体的设备

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