CN114953494A - 一种三明治结构隔音降噪墙布的制备方法以及发泡机 - Google Patents

一种三明治结构隔音降噪墙布的制备方法以及发泡机 Download PDF

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CN114953494A
CN114953494A CN202210316066.6A CN202210316066A CN114953494A CN 114953494 A CN114953494 A CN 114953494A CN 202210316066 A CN202210316066 A CN 202210316066A CN 114953494 A CN114953494 A CN 114953494A
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foaming
coating
polyester
wall
sound
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宋瑶瑶
李栋
叶挺
盛霞
徐田文
王成龙
郑今欢
施亚伦
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Soyang Technical Textile Zhejiang Co ltd
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Abstract

本发明公开了一种三明治结构隔音降噪墙布的制备方法以及发泡机，在具有良好的吸声性能的涤纶经编织物上涂覆一层具有多孔结构的发泡涂层，聚氨酯/聚丙烯酸酯发泡涂层片层与涤纶经编织物之间具有一定的粘结牢度，得到涤纶发泡涂层经编织物；同样的，在涤纶水刺无纺布上涂覆一层具有多孔结构的发泡涂层，聚氨酯/聚丙烯酸酯发泡涂层片层与涤纶水刺无纺布之间具有一定的粘结牢度，得到涤纶发泡涂层水刺无纺布；通过热压工艺将具有良好的吸音隔音性和阻燃性的涤纶发泡涂层经编织物和涤纶发泡涂层水刺无纺布复合，形成三明治结构的复合纺织材料，使复合纺织材料在具有良好的吸音隔音性能的同时也具有一定的阻燃性能。

Description

一种三明治结构隔音降噪墙布的制备方法以及发泡机
技术领域
本发明属于墙布制造的技术领域，具体涉及了一种三明治结构隔音降噪墙布的制备方法以及发泡机。
背景技术
所谓墙布，即一种可以糊裱于室内墙面的纺织类材料，可以起到装饰墙面、保护墙体等作用。墙布种类多样，具有视觉舒适、触感柔和、少许隔音、高度透气、亲和性佳等特点，使其应用广泛。墙布市场风云渐起，提花、刺绣、发泡、剪花等工艺的运用，令墙布风格更为强烈、多变，而新材料、新技术的运用则更好地满足了现代消费者绿色健康、简约便捷的消费、生活理念。随着经济发展，人们对美好生活品质的追求不断提高，这也使得消费者对室内软装修需求的不断增大，室内环境的舒适性极为重要，比如安全性、空间独立性。这也就要求室内软装修用墙布具有隔音阻燃等多功能。目前，国内主流墙布开发并没有特别强调墙布的隔音降噪功能，只是在对比与墙纸优劣时，相较于传统墙纸更加隔音。因此，急需开发一种隔音降噪阻燃多功能墙布。
发明内容
本发明的目的在于提供一种三明治结构隔音降噪墙布的制备方法以及发泡机，该墙布具有隔音降噪阻燃性能的复合纺织材料，复合纺织材料包括聚氨酯/聚丙烯酸酯发泡涂层片层，分别位于聚氨酯/聚丙烯酸酯发泡涂层片层两侧的涤纶经编织物层和涤纶无纺布层，形成三明治结构的隔音降噪墙布。该方法工艺生产能耗低，所制备的复合材料适用于墙布，具有隔音降噪阻燃等多功能。
为了解决上述技术问题，采用如下技术方案：
一种三明治结构隔音降噪墙布的制备方法，其特征在于包括如下步骤：
(1)制备发泡涂层浆料；
(2)涤纶经编织物涂层整理:取防水处理后的涤纶经编织物，将发泡涂层浆料整理到涤纶经编织物的其中一面，记作A面，获得涤纶发泡涂层经编织物；
(3)涤纶水刺无纺布涂层整理：取涤纶水刺无纺布，将发泡涂层浆料整理到涤纶水刺无纺布的其中一面，记作C面，获得涤纶发泡涂层水刺无纺布；
(4)发泡涂层织物贴合：采用热压工艺将涤纶发泡涂层经编织物的A面与涤纶发泡涂层水刺无纺布的C面贴合，获得涤纶发泡涂层经编织物/涤纶发泡涂层水刺无纺布复合纺织材料。
优选后，步骤(1)：将重量份为95～100份的水性聚氨酯乳液、55～60份的水性丙烯酸乳液、8～10份的稳泡剂、1～3份的发泡剂、1～3份的交联剂、60～80份的阻燃剂、2～5份的热膨胀微球、0.2～0.5份的碳黑色浆、30～40份的填料、发泡剂均匀混合获得灰色浆料，加入增稠剂控制粘度在3000～4000cps，投入发泡机中进行发泡，设置好发泡机参数。
优选后，水性聚氨酯乳液的固含量为50wt.％；
水性丙烯酸酯乳液的固含量为40～50wt.％，pH为4～5；
碳黑色浆的固含量为40～50wt.％，pH为7；
阻燃剂为十溴二苯乙烷和三氧化二锑的混合物，十溴二苯乙烷和三氧化二锑的质量比为6～7；
稳泡剂为硬脂酸胺，固含量为30～50wt.％；
发泡剂为琥珀酰胺酸盐；
交联剂为异氰酸酯或氮丙啶类；
增稠剂为阴离子丙烯酸溶胀型。
优选后，填料为具有层状结构的硅酸盐矿物，结构由两层硅氧四面体夹着一层铝氧八面体构成的复式硅氧层的云母；
热膨胀微球为核壳结构，外壳为聚烯腈和丙烯酸酯共聚物，内核为碳氢化合物组成的球状塑料颗粒，粒径为10～20μm、20～30μm、30～40μm、40～50μm中的一种或多种组合。
核壳结构的热膨胀微球与层状结构的填料具有相互协同作用，热膨胀微球通过高温膨胀使得涂层表面呈现出凹凸结构。
优选后，涤纶经编织物采用浸轧防水处理，浸轧完成后在170℃下焙烘1-2min，其中，防水剂与水溶液比例为1：21。
优选后，步骤(2)：发泡涂层浆料以刮涂方式整理到涤纶经编织物的A面，刀距设置为0.53mm，刮涂量为160～190g/m2，刮涂后进行90℃预烘1min，预烘后在150～175℃下烘燥60～90s，高温起泡烘干，得到涤纶发泡涂层经编织物。
优选后，步骤(3)：发泡涂层浆料以刮涂方式整理到涤纶水刺无纺布的C面，刀距设置为0.53mm，刮涂量为160～190g/m2，刮涂后进行90℃预烘1min，预烘后在150～175℃下烘燥60～90s，高温起泡烘干，得到涤纶发泡涂层水刺无纺布。
优选后，发泡机的设置参数为：泡沫密度在400～550g/L，机器速度20～30m/min；合格的泡沫密度为400～550g/L。
优选后，步骤(4)热压工艺条件设置为：热压温度210℃，热压时间30s。
优选后，涤纶发泡涂层经编织物的A面与涤纶发泡涂层水刺无纺布的C面形成有发泡涂层片层，在热压过程中将发泡涂层片层相互贴合，得到涤纶经编织物、发泡涂层片层、涤纶涤纶水刺无纺布从上至下依次堆叠并复合的三明治结构。发泡涂层片层作为中间层，不仅起到主要粘结作用，本身具有的多孔松软结构又使最终复合纺织材料具有一定的隔音降噪功能。
一种用于制备隔音降噪墙布的发泡机，包括电控箱与机体，通过电控箱设置发泡参数，机体包括有进料口、出料口与搅拌机构，其特征在于：机体还包括有定量加料器，定量加料器包括相互连通的加料箱与称料箱，称料箱安装于称重机构上，由称重机构实时检测定量加料器中投加的原料重量；称料箱上端设有推料气缸，推料气缸连接有推料板，推料板与称料箱的内腔相匹配，推料板的下端连接有推杆，推杆的下端连接有柱塞；称料箱的下端连接有进料管，进料管连接到机体内，柱塞与进料管相互匹配；柱塞位于进料管时，对其封堵，柱塞脱离进料管时，对其打开；定量加料器还包括有加料控制面板，加料控制面板包括显示模块、执行模块与设定模块，显示模块显示称重机构检测的重量，设定模块设定加料重量，执行模块控制推料气缸。
本发明的发泡机中设置有定量加料器，该定量加料器用于添加稳泡剂、发泡剂、交联剂、热膨胀微球、炭黑色浆等添加料较少的原料，其工作原理为：首先在设定模块中设定当前原料需要的加料重量，再开始加料，原料由加料箱加料到称料箱中，在加料过程中称重机构实时检测加料的重量，加料到设定重量时，发出警报提醒操作者，同时由执行模块控制推料气缸启动，推料气缸带动推料板、推杆与柱塞向下移动，柱塞从进料管中移出，进料管打开，原料逐渐从称料箱送料到机体内，同时在推料板的推动挤压下，能够保证称料箱内的所有原料均送入到机体内，送料完成后，推料气缸复位。该定量加料器通过称重方式定量加料到机体内，无需借助其他称重设备，在称重后实现直接加料，避免因搬移原料而导致物料少量损失的问题，且称重环境较为密闭，称重精确，加料准确。推料板通过挤压工序能够促进送料，避免原料附着于称料箱而造成浪费；柱塞由推杆带到移动，使其能够在进料管内进出，从而达到先称重后送料的目的，设计巧妙，无需其他阀门器件，实用性强。
本发明的进料管设置有两根，相互对称设置，每根进料管均有对应的推杆与柱塞，能够同步的送料。
称重机构支承整个定量加料器，其内设置有称重传感器，因而在加料后即可实时的检测的加料的重量。
进一步，机体还包括有刷壁机构，刮壁机构包括刷壁气缸、支杆、连杆及刷壁杆，刷壁气缸连接支杆，支杆的两端向下连接连杆，连杆分别连接有刷壁杆，刷壁杆表面设有刷扫用橡胶，橡胶紧贴机体内壁，通过刷壁气缸带动刷壁杆向下运动，从而刷扫机体内壁。
由于发泡后产生的浆料具有一定的粘性，容易附着于机体的内壁，故而本发明通过设置刷壁机构自动化的刷扫机体内壁，其工作原理为：在发泡出料后，启动刮壁气缸，由其带动支杆、连杆与刷壁杆向下移动，刷壁杆向下移动过程中持续的刷扫内壁，将粘附于内壁中的浆料刮落，使其从出料口排出，一方面保持了内壁干净，避免影响下次发泡；另一方面达到彻底出料的目的，充分获取发泡浆料。
本发明的支杆两端均设置有一根连杆，每根连杆连接有一根刷壁杆，该刷壁杆呈U型状，且两根刷壁杆之间存在有一定的间隙，留存的该间隙是防止刷壁过程中与搅拌机构发生碰撞；且本发明设置的支杆与连杆结构也是为了避免刷壁过程中与搅拌机构发生碰撞，设计合理且巧妙。
本发明的刷壁气缸安装于装配箱中，装配箱的部分位于机体上端。
由于采用上述技术方案，具有以下有益效果：
本发明在具有良好的吸声性能的涤纶经编织物上涂覆一层具有多孔结构的发泡涂层，聚氨酯/聚丙烯酸酯发泡涂层片层与涤纶经编织物之间具有一定的粘结牢度，得到涤纶发泡涂层经编织物；同样的，在涤纶水刺无纺布上涂覆一层具有多孔结构的发泡涂层，聚氨酯/聚丙烯酸酯发泡涂层片层与涤纶水刺无纺布之间具有一定的粘结牢度，得到涤纶发泡涂层水刺无纺布；通过热压工艺将具有良好的吸音隔音性和阻燃性的涤纶发泡涂层经编织物和涤纶发泡涂层水刺无纺布复合，形成三明治结构的复合纺织材料，使复合纺织材料在具有良好的吸音隔音性能的同时也具有一定的阻燃性能。
附图说明
下面结合附图对本发明做进一步说明：
图1为本发明所制备的三明治结构的隔音降噪复合纺织材料的结构示意图；
图2为发泡机的结构示意图；
图3为机体的内部结构示意图；
图4为定量加料器的结构示意图；
图5为定量加料器的内部结构示意图；
图6为刷壁机构的结构示意图(1)
图7为刷壁机构的结构示意图(2)
图中，1-涤纶经编织物、2-聚氨酯/聚丙烯酸酯发泡涂层片层、3-涤纶水刺无纺布层。
具体实施方式
一、结合具体的实施例对本发明的制备方法做进一步说明：
一种三明治结构隔音降噪墙布的制备方法，包括如下步骤：
(1)称取发泡涂层浆料的原料，配方如下表1所示：
表1发泡涂层浆料配方
组分 质量份
水性聚氨酯乳液 100份
水性丙烯酸酯乳液 60份
硬脂酸胺 8份
氮丙啶类 1份
十溴二苯乙烷 60份
碳黑 0.2份
热膨胀微球 2份
云母粉 30份
琥珀酰胺酸盐 2份
配方按照上述配方原料均匀混合，获得灰色浆料，加入增稠剂控制粘度在3000～4000cps，投入发泡机中进行发泡，发泡机参数设定：泡沫密度400～600g/L，机器速度20～30m/min，得到发泡涂层浆料。
(2)织物预处理：将涤纶经编织物进行浸轧防水处理，其中，防水剂与水溶液比例为1：21，浸轧完成后，在170℃下焙烘1-2min，将涤纶经编织物两面分别记为A面和B面(A面为正面；B面为反面)，B面为经编织物的反面较为平整，可作为喷绘层；涤纶水刺无纺布的两面分别记为C面和D面，C面为发泡涂层工艺整理层，D面作为贴合墙面层。
(3)涤纶经编织物涂层整理：将发泡涂层浆料刮涂在涤纶经编织物的A面，刮刀距离0.53mm，刮涂量为160～190g/m2，然后进行90℃预烘1min，预烘后进行170℃烘燥1min，高温起泡、烘干、出布，得到涤纶发泡涂层经编织物。
(4)涤纶水刺无纺布涂层整理：将发泡涂层浆料刮涂在涤纶水刺无纺布的C面，刮刀距离0.53mm，刮涂量为160～190g/m2，然后进行90℃预烘1min，预烘后进行170℃烘燥1min，高温起泡、烘干、出布，得到涤纶发泡涂层水刺无纺布。
(5)热压贴合：用热压工艺制备涤纶发泡涂层经编织物/涤纶发泡涂层水刺无纺布复合纺织材料。其中，热压工艺参数设置为：热压温度210℃、热压时间30s。
测试一、力学性能测试：
将各个阶段的织物进行力学性能测试，测试结果如下表2所示
表2各个阶段的织物力学性能测试
试样 断裂强力(N/5cm) 断裂伸长率(％)
涤纶经编织物 517 50
涤纶发泡涂层经编织物 1681 61
涤纶水刺无纺布 121 23
涤纶发泡涂层水刺无纺布 160 27
复合纺织材料 1863 86
由上述表2可知所制备的复合纺织材料的力学性能对比复合前的织物有明显的提高，保证其在作为墙布使用后而不易损坏的特点，且对于特定功能需求时还可通过织物后整理达到。
测试二、隔音性能测试：
将各个阶段的织物进行隔音性能测试，隔音测试通过在密闭独立隔音空间中进行，测试过程中，首先，测试一组空白组作为对比。将各阶段织物的样品分别裁剪相同大小后，再置于隔音测试仪器中进行测试，得到几组不同的隔音量。测试结果如下表3所示。
表3隔音性能测试结果
试样 隔音量(dB)
涤纶经编织物 2
涤纶发泡涂层经编织物 24
涤纶水刺无纺布 0
涤纶发泡涂层水刺无纺布 14
复合纺织材料 31
隔音测试结果表明，涂层整理再复合得到的复合材料具有较好的隔音效果，可应用于墙布市场，隔音墙布。
测试三、涂层剥离牢度性能测试：
将涂层整理后的涤纶发泡涂层经编织物与涤纶发泡涂层水刺无纺布进行涂层剥离牢度性能测试，测试结果如表4所示。
表4涂层剥离牢度测试
Figure BDA0003569040170000081
经过发泡涂层整理后，涂层牢度大于15N，具有较好的涂层牢度，使得最终产品在使用过程中不会发生开裂起泡等问题。
二、如图2-7所示，针对上述制备方法中所使用的发泡机做进一步说明
一种用于制备隔音降噪墙布的发泡机，包括电控箱5与机体4，通过电控箱5设置发泡参数，机体4包括有进料口42、出料口43与搅拌机构41，机体4还包括有定量加料器6，定量加料器6包括相互连通的加料箱61与称料箱62，称料箱62安装于称重机构64上，由称重机构64实时检测定量加料器6中投加的原料重量；称料箱62上端设有推料气缸66，推料气缸66连接有推料板67，推料板67与称料箱62的内腔相匹配，推料板67的下端连接有推杆68，推杆68的下端连接有柱塞69；称料箱62的下端连接有进料管65，进料管65连接到机体4内，柱塞69与进料管65相互匹配；柱塞69位于进料管65时，对其封堵，柱塞69脱离进料管65时，对其打开；定量加料器6还包括有加料控制面板63，加料控制面板63包括显示模块、执行模块与设定模块，显示模块显示称重机构64检测的重量，设定模块设定加料重量，执行模块控制推料气缸66。
本发明的发泡机中设置有定量加料器6，该定量加料器6用于添加稳泡剂、发泡剂、交联剂、热膨胀微球、炭黑色浆等添加料较少的原料，其工作原理为：首先在设定模块中设定当前原料需要的加料重量，再开始加料，原料由加料箱61加料到称料箱62中，在加料过程中称重机构64实时检测加料的重量，加料到设定重量时，发出警报提醒操作者，同时由执行模块控制推料气缸66启动，推料气缸66带动推料板67、推杆68与柱塞69向下移动，柱塞69从进料管65中移出，进料管65打开，原料逐渐从称料箱62送料到机体4内，同时在推料板67的推动挤压下，能够保证称料箱62内的所有原料均送入到机体4内，送料完成后，推料气缸66复位。该定量加料器6通过称重方式定量加料到机体4内，无需借助其他称重设备，在称重后实现直接加料，避免因搬移原料而导致物料少量损失的问题，且称重环境较为密闭，称重精确，加料准确。推料板67通过挤压工序能够促进送料，避免原料附着于称料箱62而造成浪费；柱塞69由推杆68带到移动，使其能够在进料管65内进出，从而达到先称重后送料的目的，设计巧妙，无需其他阀门器件，实用性强。
本发明的进料管65设置有两根，相互对称设置，每根进料管65均有对应的推杆68与柱塞69，能够同步的送料。
称重机构64支承整个定量加料器6，其内设置有称重传感器，因而在加料后即可实时的检测的加料的重量。
机体4还包括有刷壁机构7，刮壁机构包括刷壁气缸72、支杆73、连杆74及刷壁杆75，刷壁气缸72连接支杆73，支杆73的两端向下连接连杆74，连杆74分别连接有刷壁杆75，刷壁杆75表面设有刷扫用橡胶，橡胶紧贴机体4内壁，通过刷壁气缸72带动刷壁杆75向下运动，从而刷扫机体4内壁。
由于发泡后产生的浆料具有一定的粘性，容易附着于机体4的内壁，故而本发明通过设置刷壁机构7自动化的刷扫机体4内壁，其工作原理为：在发泡出料后，启动刮壁气缸，由其带动支杆73、连杆74与刷壁杆75向下移动，刷壁杆75向下移动过程中持续的刷扫内壁，将粘附于内壁中的浆料刮落，使其从出料口43排出，一方面保持了内壁干净，避免影响下次发泡；另一方面达到彻底出料的目的，充分获取发泡浆料。
本发明的支杆73两端均设置有一根连杆74，每根连杆74连接有一根刷壁杆75，该刷壁杆75呈U型状，且两根刷壁杆75之间存在有一定的间隙，留存的该间隙是防止刷壁过程中与搅拌机构41发生碰撞；且本发明设置的支杆73与连杆74结构也是为了避免刷壁过程中与搅拌机构41发生碰撞，设计合理且巧妙。
本发明的刷壁气缸72安装于装配箱71中，装配箱71的部分位于机体4上端。
以上仅为本发明的具体实施例，但本发明的技术特征并不局限于此。任何以本发明为基础，为解决基本相同的技术问题，实现基本相同的技术效果，所作出地简单变化、等同替换或者修饰等，皆涵盖于本发明的保护范围之中。

Claims (10)

1.一种三明治结构隔音降噪墙布的制备方法，其特征在于包括如下步骤：
(1)制备发泡涂层浆料；
(2)涤纶经编织物涂层整理：取防水处理后的涤纶经编织物，将发泡涂层浆料整理到涤纶经编织物的其中一面，记作A面，获得涤纶发泡涂层经编织物；
(3)涤纶水刺无纺布涂层整理：取涤纶水刺无纺布，将发泡涂层浆料整理到涤纶水刺无纺布的其中一面，记作C面，获得涤纶发泡涂层水刺无纺布；
(4)发泡涂层织物贴合：采用热压工艺将涤纶发泡涂层经编织物的A面与涤纶发泡涂层水刺无纺布的C面贴合，获得涤纶发泡涂层经编织物/涤纶发泡涂层水刺无纺布复合纺织材料。
2.根据权利要求1所述的一种三明治结构隔音降噪墙布的制备方法，其特征在于：所述步骤(1)：将重量份为95～100份的水性聚氨酯乳液、55～60份的水性丙烯酸乳液、8～10份的稳泡剂、1～3份的发泡剂、1～3份的交联剂、60～80份的阻燃剂、2～5份的热膨胀微球、0.2～0.5份的碳黑色浆、30～40份的填料、发泡剂均匀混合获得灰色浆料，加入增稠剂控制粘度在3000～4000cps，投入发泡机中进行发泡，设置好发泡机参数。
3.根据权利要求2所述的一种三明治结构隔音降噪墙布的制备方法，其特征在于：
所述水性聚氨酯乳液的固含量为50wt.％；
所述水性丙烯酸酯乳液的固含量为40～50wt.％，pH为4～5；
所述碳黑色浆的固含量为40～50wt.％，pH为7；
所述阻燃剂为十溴二苯乙烷和三氧化二锑的混合物，十溴二苯乙烷和三氧化二锑的质量比为6～7；
所述稳泡剂为硬脂酸胺，固含量为30～50wt.％；
所述发泡剂为琥珀酰胺酸盐；
所述交联剂为异氰酸酯或氮丙啶类；
所述增稠剂为阴离子丙烯酸溶胀型。
4.根据权利要求2所述的一种三明治结构隔音降噪墙布的制备方法，其特征在于：所述填料为具有层状结构的硅酸盐矿物，结构由两层硅氧四面体夹着一层铝氧八面体构成的复式硅氧层的云母；
所述热膨胀微球为核壳结构，外壳为聚烯腈和丙烯酸酯共聚物，内核为碳氢化合物组成的球状塑料颗粒，粒径为10～20μm、20～30μm、30～40μm、40～50μm中的一种或多种组合。
5.根据权利要求1所述的一种三明治结构隔音降噪墙布的制备方法，其特征在于：涤纶经编织物采用浸轧防水处理，浸轧完成后在170℃下焙烘1-2min，其中，防水剂与水溶液比例为1：21。
6.根据权利要求1所述的一种三明治结构隔音降噪墙布的制备方法，其特征在于：所述步骤(2)：发泡涂层浆料以刮涂方式整理到涤纶经编织物的A面，刀距设置为0.53mm，刮涂量为160～190g/m2，刮涂后进行90℃预烘1min，预烘后在150～175℃下烘燥60～90s，高温起泡烘干，得到涤纶发泡涂层经编织物；
所述步骤(3)：发泡涂层浆料以刮涂方式整理到涤纶水刺无纺布的C面，刀距设置为0.53mm，刮涂量为160～190g/m2，刮涂后进行90℃预烘1min，预烘后在150～175℃下烘燥60～90s，高温起泡烘干，得到涤纶发泡涂层水刺无纺布。
7.根据权利要求2所述的一种三明治结构隔音降噪墙布的制备方法，其特征在于：所述发泡机的设置参数为：泡沫密度在400～550g/L，机器速度
20～30m/min；所述合格的泡沫密度为400～550g/L。
8.根据权利要求1所述的一种三明治结构隔音降噪墙布的制备方法，其特征在于：所述步骤(4)热压工艺条件设置为：热压温度210℃，热压时间30s。
9.一种用于制备隔音降噪墙布的发泡机，包括电控箱与机体，通过所述电控箱设置发泡参数，所述机体包括有进料口、出料口与搅拌机构，其特征在于：所述机体还包括有定量加料器，所述定量加料器包括相互连通的加料箱与称料箱，所述称料箱安装于称重机构上，由所述称重机构实时检测所述定量加料器中投加的原料重量；所述称料箱上端设有推料气缸，所述推料气缸连接有推料板，所述推料板与所述称料箱的内腔相匹配，所述推料板的下端连接有推杆，所述推杆的下端连接有柱塞；所述称料箱的下端连接有进料管，所述进料管连接到所述机体内，所述柱塞与所述进料管相互匹配；所述柱塞位于所述进料管时，对其封堵，所述柱塞脱离所述进料管时，对其打开；所述定量加料器还包括有加料控制面板，所述加料控制面板包括显示模块、执行模块与设定模块，所述显示模块显示所述称重机构检测的重量，所述设定模块设定加料重量，所述执行模块控制所述推料气缸。
10.根据权利要求9所述的一种用于制备隔音降噪墙布的发泡机，其特征在于：所述机体还包括有刷壁机构，所述刮壁机构包括刷壁气缸、支杆、连杆及刷壁杆，所述刷壁气缸连接所述支杆，所述支杆的两端向下连接所述连杆，所述连杆分别连接有所述刷壁杆，所述刷壁杆表面设有橡胶，所述橡胶紧贴所述机体内壁，通过所述刷壁气缸带动所述刷壁杆向下运动，从而刷扫所述机体内壁。
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