CN111844987A - 一种减震降噪隔音垫的生产工艺 - Google Patents

一种减震降噪隔音垫的生产工艺 Download PDF

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CN111844987A
CN111844987A CN202010770736.2A CN202010770736A CN111844987A CN 111844987 A CN111844987 A CN 111844987A CN 202010770736 A CN202010770736 A CN 202010770736A CN 111844987 A CN111844987 A CN 111844987A
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sound insulation
conveying
piston
base material
insulation base
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CN111844987B (zh
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章健
吴光文
曹仁慧
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Anhui langlitong new material application Co.,Ltd.
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Wuhu Litong New Material Co ltd
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Abstract

本发明公开了一种减震降噪隔音垫的生产工艺，涉及隔音材料加工技术领域，包括打蒸汽、加热烘干、涂胶、冷成型模成型、切割、质检、打包、入库等步骤，同时，本发明还公开了用于烘干涂胶处理的烘干涂胶一体机，本发明通过优化隔音材料各组成成分的配比，实现了隔音材料在不增加厚度的前提下，仍能够过得较好的隔音效果，配合与之适应的生产工艺，即一定蒸汽压力、温度及时间的打蒸汽促使其蓬松、烘干涂胶一体机实现其加热烘干及涂胶、一定压力下的合模成型，最终获得的隔音垫产品，具有优良的隔音、减震效果。

Description

一种减震降噪隔音垫的生产工艺
技术领域
本发明属于隔音材料加工技术领域，具体涉及一种减震降噪隔音垫的生产工艺。
背景技术
隔音/吸音材料，因其具有良好的吸音、隔音、减震效果广泛应用于汽车、家电等领域。如专利公开号为CN106839385A的一种空调用二次降噪吸音板的制作工艺以及专利公开号为CN105196663B的一种汽车隔音隔热垫及其生产工艺。
目前，市场上的隔音材料各式各样，但受制于隔音材料性能提升技术的限制，要想获得预期的隔音效果，往往需要增加材料本身的厚度，一方面，增加了材料成本，另一方面，也占用了设备内部较多的空间，紧凑性差。
发明内容
本发明的目的在于提供一种减震降噪隔音垫的生产工艺，以解决现有技术中导致的上述缺陷。
一种减震降噪隔音垫的生产工艺，包括如下步骤：
(1)将隔音基材经切割机切成一段后铺设于蒸汽模内，合上蒸汽模，通过蒸汽模将蒸汽机内的蒸汽打入到隔音基材内，控制蒸汽机的压力为32-38MPa，，蒸汽模的加热温度控制在236-245℃，加热时间保持在25-35s；
(2)将步骤(1)中经打蒸汽后的隔音基材通过机械手抓取并放置于烘干涂胶一体机内，经烘干、涂胶后，再由位于烘干涂胶一体机出料口一端的机械手抓取并放置于冷成型模内，其中，冷成型模内的隔音基材包括两层相同的隔音基材，位于下层的隔音基材需要经涂胶处理，而位于上层的隔音基材不需要涂胶；
(3)冷成型模合模，模压机主缸压力为10-13MPa，保压时间为52-55s，成型结束后，由机械手抓取并置于切割设备上，准备下一步操作；
(4)经人工校正后，切割设备下压并将经步骤(3)成型后的隔音材料切割成预设尺寸，即可获得所需的隔音垫产品；
(5)质检、打包、入库。
优选的，所述隔音基材由棉、PET纤维、PP纤维按质量比1：4:(5-7)的比例复合而成。
优选的，所述隔音垫的厚度为3-5mm。
优选的，所述隔音基材的制备方法如下：
将棉、PET纤维、PP纤维按预设的质量比开松混合，混合后的纤维由喂棉机送入梳理机进行梳理，形成具有一定弹性的网状纤维；将网状纤维输送给铺棉机，铺叠形成隔音纤维层；将隔音纤维层在针刺机上进行针刺加固，针刺速度为450-480r/min。
优选的，所述烘干涂胶一体机包括机箱、第一输送机构、第二输送机构、过渡机构、涂胶机构以及箱门开合机构，所述机箱的前后两端分别设有入口和出口，所述第一输送机构、第二输送机构安装于机箱内并呈直线排列，第一输送机构、第二输送机构均用于输送隔音基材且二者之间安装有所述的过渡机构，所述过渡机构用于输送隔音垫并能够将其顶至涂胶机构内，所述过渡机构的前后两侧均安装有支撑板，支撑板的上端连接至用于向涂胶机构内提供胶黏物的送料机构，支撑板的两侧连接至用于实现机箱出入口的箱门开合的箱门开合机构。
优选的，所述第一输送机构和第二输送机构结构组成相同，均为带式输送机。
优选的，所述过渡机构包括承台、输送辊、输送电机、输送带以及液压缸，所述承台的上部设有安装槽，安装槽内转动连接有两个水平布置的输送辊，输送辊之间筒输送带连接，其中一个输送辊的转轴连接有带轮，该带路通过皮带连接至输送电机输出端的带轮，输送电机安装于安装槽的底面，输送带的上端面与第一输送机构、第二输送机构的上端面齐平，承台的底部连接至液压缸的输出端，承台的底面还连接有导柱，导柱滑动连接于机箱内的导向座内。
优选的，所述涂胶机构包括矩形套筒、空心壳体、活塞筒一、活塞一、进料管以及送料管，所述矩形套筒固定于机箱顶部的安装孔内并位于过渡机构的正上方，空心壳体安装于矩形套筒的顶部并将其顶部密封，空心壳体的底部安装有若干阵列设置的喷嘴，喷嘴上端与空心壳体内腔的连接处安装有单向阀，固定于活塞一下端的活塞杆连接至支撑板的上端，活塞一滑动连接于活塞筒一内，活塞筒一的上端通过送料管与空心壳体的内腔连通，进料管设于活塞筒一的侧面，且活塞筒一、进料管的出口端均安装有单向阀，进料管还连接至供料桶。
优选的，所述箱门开合机构包括箱门、连接件、活塞筒二、活塞二、活塞筒三以及活塞三，所述箱门滑动连接于机箱入口和出口处的滑槽内，每个箱门的内侧均固定有两个对称设置的连接件，每个连接件连接有一个活塞杆二，活塞杆二的下端连接至活塞二，活塞二滑动连接于活塞筒二内，活塞筒二的下端通过连接管连接至活塞筒三，活塞三滑动连接于活塞筒三内，活塞三的上端连接至活塞杆三，活塞杆的上端安装于支撑板上，连接管内填充有密封油。
优选的，所述机箱的顶部还设有一进气口，机箱的侧面设有排气口。
本发明的优点在于：
(1)本发明通过优化隔音材料各组成成分的配比，实现了隔音材料在不增加厚度的前提下，仍能够过得较好的隔音效果，配合与之适应的生产工艺，即一定蒸汽压力、温度及时间的打蒸汽促使其蓬松、烘干涂胶一体机实现其加热烘干及涂胶、一定压力下的合模成型，最终获得的隔音垫产品，具有优良的隔音、减震效果；
(2)现有技术中，关于隔音垫的烘干、涂胶过程，二者分步进行，并在中间设置有转运装置，并且涂胶后胶水不易干，还需要晾干或采用额外的烘干设备烘干，增加了设备成本，加工效率有待提高；为了实现隔音材料在打蒸汽之后能够更好更快地实现加热烘干以及涂胶处理，故设计出了特制的烘干涂胶一体机，过渡机构与涂胶机构配合，以实现隔音基材在一个相对密闭空间内的涂胶处理，避免机箱内的热空气对其造成太多不良影响，且涂胶后还能借助于机箱内的热空气进行干燥处理，另外，随着过渡机构的上下运动，不仅实现了隔音材料的涂胶处理，而且还实现了箱门的间歇式开合，减少了热量散失，整套动作一气呵成，保证了各个加工步骤节拍的一致性，避免了后期的反复调试，实现了整个过程的自动化，显著提高了生产效率。
附图说明
图1为本发明的工艺流程图。
图2为本发明中烘干涂胶一体机的俯视图。
图3为图2中沿A-A方向的剖视图。
图4为图2中沿B-B方向的剖视图。
图5为图2中C处的局部放大图。
图6为本发明中承台及支撑板的连接示意图。
图7为本发明中空心壳体的截面剖视图。
其中，1-机箱，2-第一输送机构，3-第二输送机构，4-过渡机构，41-承台，42-输送辊，43-输送电机，44-输送带，45-液压缸，46-安装槽，47-导柱，48-导向座，49-支撑板，5-涂胶机构，51-矩形套筒，52-空心壳体，53-活塞筒一，54-活塞一，55-活塞杆一，56-进料管，57-送料管，58-单向阀，59-喷嘴，6-箱门开合机构，61-箱门，62-滑槽，63-连接件，64-活塞筒二，65-活塞二，66-活塞杆二，67-活塞筒三，68-活塞三，69-活塞杆三，610-连接管，7-入口，8-出口，9-进气口，10-排气口。
具体实施方式
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施方式，进一步阐述本发明。
实施例1
如图1所示，一种减震降噪隔音垫的生产工艺，包括如下步骤：
(1)将隔音基材经切割机切成一段后铺设于蒸汽模内，合上蒸汽模，通过蒸汽模将蒸汽机内的蒸汽打入到隔音基材内，控制蒸汽机的压力为32MPa，，蒸汽模的加热温度控制在236℃，加热时间保持在35s；
(2)将步骤(1)中经打蒸汽后的隔音基材通过机械手抓取并放置于烘干涂胶一体机内，经烘干、涂胶后，再由位于烘干涂胶一体机出料口一端的机械手抓取并放置于冷成型模内，其中，冷成型模内的隔音基材包括两层相同的隔音基材，位于下层的隔音基材需要经涂胶处理，而位于上层的隔音基材不需要涂胶；
(3)冷成型模合模，模压机主缸压力为10MPa，保压时间为55s，成型结束后，由机械手抓取并置于切割设备上，准备下一步操作；
(4)经人工校正后，切割设备下压并将经步骤(3)成型后的隔音材料切割成预设尺寸，即可获得所需的隔音垫产品；
(5)质检、打包、入库。
在本实施例中，所述隔音基材由棉、PET纤维、PP纤维按质量比1：4:5的比例复合而成。
在本实施例中，所述隔音垫的厚度为3mm。
在本实施例中，所述隔音基材的制备方法如下：
将棉、PET纤维、PP纤维按预设的质量比开松混合，混合后的纤维由喂棉机送入梳理机进行梳理，形成具有一定弹性的网状纤维；将网状纤维输送给铺棉机，铺叠形成隔音纤维层；将隔音纤维层在针刺机上进行针刺加固，针刺速度为450r/min。
实施例2
一种减震降噪隔音垫的生产工艺，包括如下步骤：
(1)将隔音基材经切割机切成一段后铺设于蒸汽模内，合上蒸汽模，通过蒸汽模将蒸汽机内的蒸汽打入到隔音基材内，控制蒸汽机的压力为35MPa，，蒸汽模的加热温度控制在240℃，加热时间保持在30s；
(2)将步骤(1)中经打蒸汽后的隔音基材通过机械手抓取并放置于烘干涂胶一体机内，经烘干、涂胶后，再由位于烘干涂胶一体机出料口一端的机械手抓取并放置于冷成型模内，其中，冷成型模内的隔音基材包括两层相同的隔音基材，这两层隔音基材均通过烘干涂胶一体机处理，位于下层的隔音基材需要经涂胶处理，而位于上层的隔音基材不需要涂胶；
(3)冷成型模合模，模压机主缸压力为12MPa，保压时间为54s，成型结束后，由机械手抓取并置于切割设备上，准备下一步操作；
(4)经人工校正后，切割设备下压并将经步骤(3)成型后的隔音材料切割成预设尺寸，即可获得所需的隔音垫产品；
(5)质检、打包、入库。
在本实施例中，所述隔音基材由棉、PET纤维、PP纤维按质量比1：4:6的比例复合而成。
在本实施例中，所述隔音垫的厚度为4mm。
在本实施例中，所述隔音基材的制备方法如下：
将棉、PET纤维、PP纤维按预设的质量比开松混合，混合后的纤维由喂棉机送入梳理机进行梳理，形成具有一定弹性的网状纤维；将网状纤维输送给铺棉机，铺叠形成隔音纤维层；将隔音纤维层在针刺机上进行针刺加固，针刺速度为465r/min。
实施例3
一种减震降噪隔音垫的生产工艺，包括如下步骤：
(1)将隔音基材经切割机切成一段后铺设于蒸汽模内，合上蒸汽模，通过蒸汽模将蒸汽机内的蒸汽打入到隔音基材内，控制蒸汽机的压力为38MPa，，蒸汽模的加热温度控制在45℃，加热时间保持在25s；
(2)将步骤(1)中经打蒸汽后的隔音基材通过机械手抓取并放置于烘干涂胶一体机内，经烘干、涂胶后，再由位于烘干涂胶一体机出料口一端的机械手抓取并放置于冷成型模内，其中，冷成型模内的隔音基材包括两层相同的隔音基材，这两层隔音基材均通过烘干涂胶一体机处理，位于下层的隔音基材需要经涂胶处理，而位于上层的隔音基材不需要涂胶；
(3)冷成型模合模，模压机主缸压力为13MPa，保压时间为52s，成型结束后，由机械手抓取并置于切割设备上，准备下一步操作；
(4)经人工校正后，切割设备下压并将经步骤(3)成型后的隔音材料切割成预设尺寸，即可获得所需的隔音垫产品；
(5)质检、打包、入库。
在本实施例中，所述隔音基材由棉、PET纤维、PP纤维按质量比1：4:7的比例复合而成。
在本实施例中，所述隔音垫的厚度为5mm。
在本实施例中，所述隔音基材的制备方法如下：
将棉、PET纤维、PP纤维按预设的质量比开松混合，混合后的纤维由喂棉机送入梳理机进行梳理，形成具有一定弹性的网状纤维；将网状纤维输送给铺棉机，铺叠形成隔音纤维层；将隔音纤维层在针刺机上进行针刺加固，针刺速度为450-480r/min。
本发明中，为了提高生产效率，实现打蒸汽工序与合模成型工序的无缝对接，故设计出来一款烘干涂胶一体机。具体地，如图2至图7所示，所述烘干涂胶一体机包括机箱1、第一输送机构2、第二输送机构3、过渡机构4、涂胶机构5以及箱门开合机构6，所述机箱1的前后两端分别设有入口7和出口8，所述第一输送机构2、第二输送机构3安装于机箱1内并呈直线排列，第一输送机构2、第二输送机构3均用于输送隔音基材且二者之间安装有所述的过渡机构4，所述过渡机构4用于输送隔音垫并能够将其顶至涂胶机构5内，所述过渡机构4的前后两侧均安装有支撑板49，具体是通过一L形的连接板与支撑板49连接，支撑板49的上端连接至用于向涂胶机构5内提供胶黏物的送料机构，支撑板49的两侧连接至用于实现机箱1出入口7的箱门61开合的箱门开合机构6。
在本实施例中，所述第一输送机构2和第二输送机构3结构组成相同，均为带式输送机。
在本实施例中，所述过渡机构4包括承台41、输送辊42、输送电机43、输送带44以及液压缸45，所述承台41的上部设有安装槽46，安装槽46内转动连接有两个水平布置的输送辊42，输送辊42之间筒输送带44连接，其中一个输送辊42的转轴连接有带轮，该带路通过皮带连接至输送电机43输出端的带轮，输送电机43安装于安装槽46的底面，输送带44的上端面与第一输送机构2、第二输送机构3的上端面齐平，承台41的底部连接至液压缸45的输出端，承台41的底面还连接有导柱47，导柱47滑动连接于机箱1内的导向座48内。
在本实施例中，所述涂胶机构5包括矩形套筒51、空心壳体52、活塞筒一53、活塞一54、进料管57以及送料管，所述矩形套筒51固定于机箱1顶部的安装孔内并位于过渡机构4的正上方，空心壳体52安装于矩形套筒51的顶部并将其顶部密封，空心壳体52的底部安装有若干阵列设置的喷嘴59，喷嘴59上端与空心壳体52内腔的连接处安装有单向阀58，固定于活塞一54下端的活塞杆连接至支撑板49的上端，活塞一54滑动连接于活塞筒一53内，活塞筒一53的上端通过送料管与空心壳体52的内腔连通，进料管57设于活塞筒一53的侧面，且活塞筒一53、进料管57的出口8端均安装有单向阀58，进料管57还连接至供料桶(位于机箱1外，图中未示出)。
在本实施例中，所述箱门开合机构6包括箱门61、连接件63、活塞筒二64、活塞二65、活塞筒三67以及活塞三68，所述箱门61滑动连接于机箱1入口7和出口8处的滑槽62内，每个箱门61的内侧均固定有两个对称设置的连接件63，每个连接件63连接有一个活塞杆二66，活塞杆二66的下端连接至活塞二65，活塞二65滑动连接于活塞筒二64内，活塞筒二64的下端通过连接管610连接至活塞筒三67，活塞三68滑动连接于活塞筒三67内，活塞三68的上端连接至活塞杆三69，活塞杆的上端安装于支撑板49上，连接管610内填充有密封油。其中，活塞三68的直径大于活塞二65的直径，而活塞筒三67的行程小于活塞筒二64的行程，如此，活塞三68仅仅需要移动一小段距离，即可实现活塞二65的长行程的移动。
在本实施例中，所述机箱1的顶部还设有一进气口9，机箱1的侧面设有排气口10，用于向内通入热空气以及实现空气的排出。
本发明中的烘干涂胶一体机工作原理如下：
初始状态下，过渡机构4位于最低点，两侧的箱门61处于开启状态，打蒸汽后的隔音基材经机械手抓取并放置于第一输送机构2上，并由第一输送机构2输送至过渡机构4中的输送带44上，到达预定位置后，液压缸45伸出，承台41向上移动并最终整体进入到矩形套筒51内，承台41与矩形套筒51为间隙配合，间隙尺寸为0.2-0.5mm，以保证热空气不会轻易进入到此时的矩形套筒51内腔中。在承台41上升的过程中，涂胶机构5及箱门开合机构6的工作过程分别如下：
涂胶机构5：承台41两侧设置的支撑板49带动活塞杆一55及活塞一54上升，挤压活塞筒一53内的胶黏物，并最终使其进入到空心壳体52内，再由喷嘴59喷至输送带44上的隔音基材上表面，此时的进料管57的出口8端的单向阀58处于关闭状态。刚开始由于空心壳体52内并未充满胶黏物，故不会出现胶黏物的喷出，而当承台41完全进入到矩形套筒51内后，才会不断喷出胶黏物。
箱门开合机构6：承台41两侧设置的支撑板49带动活塞杆三69及活塞三68上升，由于连接管610及其内部密封油的作用，活塞杆二66及活塞二65下降，并带动箱门61闭合，减少机箱1内热量的散发，从而实现箱门61的间歇式开合。
涂胶完成后，承台41在液压缸45的作用下下降，涂胶机构5及箱门开合机构6的工作过程分别如下：
涂胶机构5：承台41两侧设置的支撑板49带动活塞杆一55及活塞一54下降，由于此时活塞筒一53的出口8端设置有单向阀58，活塞筒一53内产生负压，进料管57的出口8端的单向阀58打开，胶黏物经进料管57进入到活塞筒一53内。
箱门开合机构6：承台41两侧设置的支撑板49带动活塞杆三69及活塞三68下降，由于连接管610及其内部密封油的作用，活塞杆二66及活塞二65上升，并带动箱门61开启，从而实现隔音基材的上料以及下料。
本发明中，由于上层的隔音基材无需喷涂胶黏物，故在蒸汽模与冷成型模之间再设置一个具有输送功能的烘干机即可。
由技术常识可知，本发明可以通过其它的不脱离其精神实质或必要特征的实施方案来实现。因此，上述公开的实施方案，就各方面而言，都只是举例说明，并不是仅有的。所有在本发明范围内或在等同于本发明的范围内的改变均被本发明包含。

Claims (10)

1.一种减震降噪隔音垫的生产工艺，其特征在于，包括如下步骤：
(1)将隔音基材经切割机切成一段后铺设于蒸汽模内，合上蒸汽模，通过蒸汽模将蒸汽机内的蒸汽打入到隔音基材内，控制蒸汽机的压力为32-38MPa，蒸汽模的加热温度控制在236-245℃，加热时间保持在25-35s；
(2)将步骤(1)中经打蒸汽后的隔音基材通过机械手抓取并放置于烘干涂胶一体机内，经烘干、涂胶后，再由位于烘干涂胶一体机出料口一端的机械手抓取并放置于冷成型模内，其中，冷成型模内的隔音基材包括两层相同的隔音基材，位于下层的隔音基材需要经涂胶处理，而位于上层的隔音基材不需要涂胶；
(3)冷成型模合模，模压机主缸压力为10-13MPa，保压时间为52-55s，成型结束后，由机械手抓取并置于切割设备上，准备下一步操作；
(4)经人工校正后，切割设备下压并将经步骤(3)成型后的隔音材料切割成预设尺寸，即可获得所需的隔音垫产品；
(5)质检、打包、入库。
2.根据权利要求1所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述隔音基材由棉、PET纤维、PP纤维按质量比1：4:(5-7)的比例复合而成。
3.根据权利要求2所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述隔音垫的厚度为3-5mm。
4.根据权利要求2所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述隔音基材的制备方法如下：
将棉、PET纤维、PP纤维按预设的质量比开松混合，混合后的纤维由喂棉机送入梳理机进行梳理，形成具有一定弹性的网状纤维；将网状纤维输送给铺棉机，铺叠形成隔音纤维层；将隔音纤维层在针刺机上进行针刺加固，针刺速度为450-480r/min。
5.根据权利要求1所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述烘干涂胶一体机包括机箱(1)、第一输送机构(2)、第二输送机构(3)、过渡机构(4)、涂胶机构(5)以及箱门开合机构(6)，所述机箱(1)的前后两端分别设有入口(7)和出口(8)，所述第一输送机构(2)、第二输送机构(3)安装于机箱(1)内并呈直线排列，第一输送机构(2)、第二输送机构(3)均用于输送隔音基材且二者之间安装有所述的过渡机构(4)，所述过渡机构(4)用于输送隔音垫并能够将其顶至涂胶机构(5)内，所述过渡机构(4)的前后两侧均安装有支撑板(49)，支撑板(49)的上端连接至用于向涂胶机构(5)内提供胶黏物的送料机构，支撑板(49)的两侧连接至用于实现机箱(1)出入口(7)的箱门(61)开合的箱门开合机构(6)。
6.根据权利要求5所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述第一输送机构(2)和第二输送机构(3)结构组成相同，均为带式输送机。
7.根据权利要求5所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述过渡机构(4)包括承台(41)、输送辊(42)、输送电机(43)、输送带(44)以及液压缸(45)，所述承台(41)的上部设有安装槽(46)，安装槽(46)内转动连接有两个水平布置的输送辊(42)，输送辊(42)之间筒输送带(44)连接，其中一个输送辊(42)的转轴连接有带轮，该带路通过皮带连接至输送电机(43)输出端的带轮，输送电机(43)安装于安装槽(46)的底面，输送带(44)的上端面与第一输送机构(2)、第二输送机构(3)的上端面齐平，承台(41)的底部连接至液压缸(45)的输出端，承台(41)的底面还连接有导柱(47)，导柱(47)滑动连接于机箱(1)内的导向座(48)内。
8.根据权利要求7所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述涂胶机构(5)包括矩形套筒(51)、空心壳体(52)、活塞筒一(53)、活塞一(54)、进料管(57)以及送料管，所述矩形套筒(51)固定于机箱(1)顶部的安装孔内并位于过渡机构(4)的正上方，空心壳体(52)安装于矩形套筒(51)的顶部并将其顶部密封，空心壳体(52)的底部安装有若干阵列设置的喷嘴(59)，喷嘴(59)上端与空心壳体(52)内腔的连接处安装有单向阀(58)，固定于活塞一(54)下端的活塞杆连接至支撑板(49)的上端，活塞一(54)滑动连接于活塞筒一(53)内，活塞筒一(53)的上端通过送料管与空心壳体(52)的内腔连通，进料管(57)设于活塞筒一(53)的侧面，且活塞筒一(53)、进料管(57)的出口(8)端均安装有单向阀(58)，进料管(57)还连接至供料桶。
9.根据权利要求7所述的一种减震降噪隔音垫的生产工艺，其特征在于：所述箱门开合机构(6)包括箱门(61)、连接件(63)、活塞筒二(64)、活塞二(65)、活塞筒三(67)以及活塞三(68)，所述箱门(61)滑动连接于机箱(1)入口(7)和出口(8)处的滑槽(62)内，每个箱门(61)的内侧均固定有两个对称设置的连接件(63)，每个连接件(63)连接有一个活塞杆二(66)，活塞杆二(66)的下端连接至活塞二(65)，活塞二(65)滑动连接于活塞筒二(64)内，活塞筒二(64)的下端通过连接管(610)连接至活塞筒三(67)，活塞三(68)滑动连接于活塞筒三(67)内，活塞三(68)的上端连接至活塞杆三(69)，活塞杆的上端安装于支撑板(49)上，连接管(610)内填充有密封油。
10.根据权利要求5所述的一种减震降噪隔音垫的生产工艺，其特征在于：所所述机箱(1)的顶部还设有一进气口(9)，机箱(1)的侧面设有排气口(10)。
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