WO2018094609A1 - 一种低密度高透气性聚氨酯发泡材料的生产系统 - Google Patents

一种低密度高透气性聚氨酯发泡材料的生产系统 Download PDF

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WO2018094609A1
WO2018094609A1 PCT/CN2016/106925 CN2016106925W WO2018094609A1 WO 2018094609 A1 WO2018094609 A1 WO 2018094609A1 CN 2016106925 W CN2016106925 W CN 2016106925W WO 2018094609 A1 WO2018094609 A1 WO 2018094609A1
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Prior art keywords
platform
tank
mixing chamber
mixing
production system
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PCT/CN2016/106925
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English (en)
French (fr)
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李红领
苏志锋
郑发山
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广州艾科新材料股份有限公司
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Priority to PCT/CN2016/106925 priority Critical patent/WO2018094609A1/zh
Publication of WO2018094609A1 publication Critical patent/WO2018094609A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations

Definitions

  • the invention relates to a foaming material production system, in particular to a production system of low density and high gas permeability polyurethane foaming material.
  • Polyurethane soft foam is mostly open-cell structure, with low density, good elastic recovery, sound absorption, ventilation, heat preservation and other properties. It is mainly used as mats for furniture mats, mattresses, vehicle seat cushions, etc., also for industrial and civil use.
  • Soft foam is used as a filter material, a soundproof material, a shockproof material, a decorative material, a packaging material, and a heat insulating material.
  • the high-breathable polyurethane soft foam can be further divided into a block soft foam and a molded soft foam.
  • the bulk soft foam is a foam product which is produced by a continuous process to produce a large-volume foam and then cut into a desired shape.
  • the plastic soft foam is a foamed product which is directly mixed with a raw material by a gap process and then injected into a mold to be foamed into a desired shape.
  • the polyurethane foam material produced by the foaming machine can solve various problems caused by artificial foaming.
  • the high-speed mixing chamber at the front end of the foaming machine tends to generate high temperature with the production time, and accelerates the reaction rate of the polyurethane material.
  • the heat generated by the friction of the material causes the temperature of the material to rise continuously, thereby destroying the reactivity of the system.
  • the position of the foaming machine is usually fixed and non-movable, and the continuous production is realized by continuously transferring the box mold, and a large amount of materials are often wasted in the transfer process of the box, thereby increasing the production cost.
  • the surface temperature of the conventional box mold is uncontrollable, and only when the material is solidified at room temperature, the produced breathable polyurethane foam often has a thick layer of skin, which is often undesirable by the manufacturer.
  • the existing production system mainly consists of a movable mold, a filling machine, a coloring device and a cleaning device, wherein the filling machine comprises a dosing tank 1 for storing isocyanate, a dosing tank 2, a dosing tank 3, for storing a polyol composition .
  • the filling machine comprises a dosing tank 1 for storing isocyanate, a dosing tank 2, a dosing tank 3, for storing a polyol composition .
  • the material is sent to the mixer head through the metering pump on the filling machine, and the color paste is pumped from the coloring equipment to the stirring chamber, mixed with the polyol and the isocyanate component, and then poured into the moving mold.
  • the cleaning liquid is cleaned.
  • the equipment is pumped into the mixing chamber for cleaning. Because there is a large time gap before each mold is poured, the production cycle of the product is seriously affected, and the mixing and mixing chamber is cleaned before each transfer, which greatly reduces the utilization rate of
  • the present invention provides a production system capable of continuously producing a low-density, high-permeability polyurethane foaming material, which has a simple structure, can be continuously produced, and saves materials while improving production efficiency.
  • the technical scheme of the invention is: a production system of a low-density and high-breathing polyurethane foam material, comprising a heater, an oil pump, a mold, a moving perfusion platform, a platform rail, a mixing and stirring chamber, wherein the heater is connected with the oil pump One end of the oil pump is respectively connected with the heating sleeves of a row of molds, and the molds are closely arranged along the side of the platform rails.
  • the platform rails are provided with a moving perfusion platform, and the moving perfusion platform can slide freely along the platform rails, and the moving perfusion platform is close to the mold.
  • a mixing chamber is disposed above one side of the mixing chamber, and a quick cooling jacket is sleeved at the front end of the mixing chamber, and a metering pump corresponding to the batch tank is connected to the rear end of the mixing chamber.
  • the mobile perfusion platform comprises a dosing tank, a chiller, a cleaning liquid storage tank and a color tank respectively connected to the electric control box, and the dosing tank comprises a first dosing tank, a second dosing tank, a third dosing tank, a first dosing tank, a first
  • the second batching tank, the third batching tank and the coloring tank are respectively connected to the mixing and stirring chamber through the metering pump, and the cleaning liquid storage tank is connected with the mixing and stirring chamber through the water pump, and the chiller is connected with the quick cooling jacket on the mixing and stirring chamber.
  • the return pipe of the batching tank is provided with a cylindrical material buffer tank, the cylindrical material buffer tank jacket is connected with a cooler, the bottom of the cooler is provided with a cooling water inlet, and the top of the cooler is provided with a cooling water outlet.
  • the heating sleeve comprises an upper cover and a box body.
  • the upper cover and the box body are provided with a plurality of parallel heating pipes.
  • the heating pipes are connected by oil pipes, and the oil pipes of the oil inlet port and the oil outlet port are respectively connected with the oil pump and the heater end.
  • the mixing and mixing chamber includes a mixing chamber with a cooling water passage, an agitator installed above the mixing chamber, and a injection cup installed below the mixing chamber.
  • the mixing chamber is provided with a water inlet on one side and a water outlet on the other side.
  • the invention has the beneficial effects that: by adding a heating sleeve to the mold, the temperature of the mold can be controlled, thereby producing a soft foaming material, and the mold opening time can be greatly shortened to improve the production efficiency; adding a quick cooling jacket to the mixing chamber In order to quickly absorb the heat generated by high-speed agitation, a cylindrical material buffer tank with a narrow-length cooling interlayer is added between the material tank and the return pipe to quickly control the material temperature; the mobile perfusion platform can extend the platform track back and forth. In mobile, continuous production only needs to place the box molds side by side on the mobile perfusion platform, and carry out continuous production through the mobile perfusion platform, saving materials and improving production efficiency.
  • FIG. 1 is a schematic structural view of a production system of a low-density, high-permeability polyurethane foamed material of the present invention
  • FIG. 2 is a schematic cross-sectional structural view of a mold with a heating jacket of the present invention
  • Figure 3 is a schematic view showing the structure of the mixing and stirring chamber of the present invention.
  • Figure 4 is a schematic view showing the structure of a cylindrical material buffer tank of the present invention.
  • a low-density, high-permeability polyurethane foam production system includes a heater, an oil pump, a mold, a mobile perfusion platform, a platform rail, a mixing chamber, a heater connected to an oil pump, and an oil pump.
  • One end is connected with a heating sleeve of a row of molds, and the molds are closely arranged along the side of the platform rail.
  • the platform rail is provided with a moving perfusion platform, and the moving perfusion platform can slide freely along the platform rail, and the moving perfusion platform is close to the side of the mold.
  • a mixing chamber is arranged above the mixing chamber, and a quick cooling jacket is sleeved at the front end of the mixing chamber, and a metering pump corresponding to the batch tank is connected to the rear end of the mixing chamber.
  • the heater provides preheating of the heating oil, and is heated and circulated by the oil pump into the heating sleeve of the mold.
  • the moving perfusion platform can be poured along the track, the mold can be directly connected and can be closely connected, and the transfer time between the molds is short, and the introduction of the metering pump can be The process of cleaning the mixing and mixing chamber during each perfusion transfer is completely omitted, and the production efficiency is greatly improved while the production cost is greatly saved. In continuous production, it is only necessary to place the box molds side by side on the side of the mobile perfusion platform, and carry out continuous production by moving the moving perfusion platform to save materials and improve production efficiency.
  • the heating sleeve comprises an upper cover and a box body.
  • the upper cover and the box body are provided with a plurality of parallel heating pipes.
  • the heating pipes are connected by oil pipes, and the oil pipes of the oil inlet port and the oil outlet port are respectively connected with the oil pump and the heater end.
  • the mixing and mixing chamber includes a mixing chamber with a cooling water passage, an agitator installed above the mixing chamber, and a injection cup installed below the mixing chamber.
  • the mixing chamber is provided with a water inlet on one side and a water outlet on the other side.
  • the temperature of the mold is controllable, thereby producing a soft foaming material, and the mold opening time can be greatly shortened to improve the production efficiency; the mixing chamber is modified, and the condensed water is added for cooling. Quickly cool the jacket to quickly absorb the heat generated by high-speed agitation.
  • the mobile perfusion platform comprises a dosing tank, a chiller, a cleaning liquid storage tank and a color tank respectively connected to the electric control box, and the dosing tank comprises a first dosing tank, a second dosing tank, a third dosing tank, a first dosing tank, a first
  • the second batching tank, the third batching tank and the coloring tank are respectively connected to the mixing and stirring chamber through the metering pump, and the cleaning liquid storage tank is connected with the mixing and stirring chamber through the water pump, and the chiller is connected with the quick cooling jacket on the mixing and stirring chamber.
  • the first batching tank stores the isocyanate
  • the second batching tank and the third batching tank store the polyol composition.
  • the material is pumped from the batching tank to the mixing chamber at the front end for mixing and discharging, and the moving perfusion platform can be along The platform track advances and the material is evenly poured into the mold.
  • the electric control box is used to control the metering pump, and the adding time and the adding amount of the color tank are controlled to realize the freely controlled color material opening and closing time to improve the flow pattern in the foaming process.
  • the return pipe of the batching tank is provided with a cylindrical material buffer tank, the cylindrical material buffer tank jacket is connected with a cooler, the bottom of the cooler is provided with a cooling water inlet, and the top of the cooler is provided with a cooling water outlet.
  • This embodiment is in the material tank and the return pipe A cylindrical material buffer tank with a narrow volume of cooling interlayer is added between them to quickly control the material temperature.

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

一种低密度高透气性聚氨酯发泡材料的生产系统，包括加热器（1）、油泵（2）、模具（3）、移动灌注平台（13）、平台轨道（4）、混合搅拌室（5）。加热器（1）与油泵（2）连接，油泵（2）的一端与一排模具（3）的加热套（31）分别连接，模具（3）沿着平台轨道（4）一侧依次紧密排列，平台轨道（4）上设置有移动灌注平台（13），移动灌注平台（13）沿着平台轨道（4）可以自由滑动，移动灌注平台（13）靠近模具（3）的一侧上方设置有混合搅拌室（51），混合搅拌室（51）的前端套接有快速冷却夹套（51），混合搅拌室（51）后端连接有与配料罐对应的计量泵。移动灌注平台（13）可沿平台轨道（4）前后来回移动，连续生产中只需将箱体模具（3）并列摆放在移动灌注平台（13）旁，通过移动灌注平台（13）进行连续生产，节约物料的同时提高生产效率。

Description

一种低密度高透气性聚氨酯发泡材料的生产系统 技术领域
本发明涉及一种发泡材料生产系统，尤其是一种低密度高透气性聚氨酯发泡材料的生产系统。
背景技术
聚氨酯软泡多为开孔结构，具有密度低、弹性回复好、吸音、透气、保温等性能，主要用作家具垫材、床垫、交通工具座椅坐垫等垫材，工业和民用上也把软泡用作过滤材料、隔音材料、防震材料、装饰材料、包装材料及隔热材料等。按生产工艺的不同，高透气聚氨酯软泡又可分为块状软泡和模塑软泡，块状软泡是通过连续法工艺生产出大体积泡沫再切割成所需形状的泡沫制品，模塑软泡是通过间隙法工艺直接将原料混合后注入模具发泡成所需形状的泡沫制品。
借由发泡机生产的聚氨酯发泡材料能很好解决人工发泡带来的种种问题，但目前发泡机前端的高速混合室随生产时间的推移往往会产生高温，加快聚氨酯物料的反应速率，同时随着物料在料管中不停的高速循环，因物料摩擦产生的热量使物料温度不断上升，破坏体系反应性。而且通常发泡机的位置是固定不可移动的，通过不停转移箱体模具实现连续化生产，在箱体转移过程中往往浪费大量的物料，从而增加生产成本。且常规箱体模具表面温度不可控，只能时物料在室温下固化，由此生产的透气聚氨酯发泡往往有一层很厚的表皮，往往是厂家所不希望的。
现有的生产系统主要由可移动模具，灌注机，加色设备以及清洗设备组成，其中灌注机包含配料罐1，用于存放异氰酸酯，配料罐2，配料罐3，用于存放多元醇组合料。生产时物料经由灌注机上的计量泵输送至搅拌机头，同时色浆从加色设备经泵输送至搅拌室与多元醇以及异氰酸酯组分混合后灌注入移动模具中，灌注完毕后，清洗液从清洗设备由泵输送入搅拌混合室进行清洗工序。因每个模具灌注之前存在较大的时间间隙，严重影响产品的生产周期，且每次灌注转移前都要对搅拌混合室进行清洗工序，大大降低了物料的利用率已经增加了清洗成本。
发明内容
针对现有技术的不足，本发明提供一种可以实现连续生产低密度高透气性聚氨酯发泡材料的生产系统，结构简单，可进行连续生产，节约物料的同时提高生产效率。
本发明的技术方案为：一种低密度高透气性聚氨酯发泡材料的生产系统，包括加热器、油泵、模具、移动灌注平台、平台轨道、混合搅拌室，其特征在于：加热器与油泵连接，油泵的一端与一排模具的加热套分别连接，模具沿着平台轨道一侧依次紧密排列，平台轨道上设置有移动灌注平台，移动灌注平台沿着平台轨道可以自由滑动，移动灌注平台靠近模具的一侧上方设置有混合搅拌室，混合搅拌室的前端套接有快速冷却夹套，混合搅拌室后端连接有与配料罐对应的计量泵。
移动灌注平台包括分别与电控箱连接的配料罐、冷水机、清洗液存储罐、色料罐，配料罐包括第一配料罐、第二配料罐、第三配料罐，第一配料罐、第二配料罐、第三配料罐、色料罐分别通过计量泵与混合搅拌室连接，清洗液储存罐通过水泵与混合搅拌室连接，冷水机与混合搅拌室上的快速冷却夹套连接。
配料罐的回流管上设置有圆柱形物料缓冲罐，圆柱形物料缓冲罐外套接有冷却器，冷却器底部设置有冷却水入口，冷却器顶部设置有冷却水出口。
加热套包括上盖、箱体，上盖和箱体内部设置有多个并列加热管道，加热管道之间通过油管连接，进油口和出油口的油管分别与油泵、加热器一端连接。
搅拌混合室包括带冷却水路的混合室、安装在混合室上方的搅拌器、安装在混合室下方的注料杯，混合室一侧设置有进水口，另一侧设置有出水口。
本发明的有益效果为：通过对模具增加加热套，使模具温度可控，进而生产表皮柔顺的发泡材料且开模时间也能大大缩短提高生产效率；对搅拌混合室进行添加快速冷却夹套，以快速吸收因高速搅拌产生的热量，同时在物料罐和回料管之间增加一个体积狭长带冷却夹层的圆柱型物料缓冲罐，以快速控制物料温度；移动灌注平台可延平台轨道前后来回移动，连续生产中只需将箱体模具并列摆放在移动灌注平台旁，通过移动灌注平台进行连续生产，节约物料的同时提高生产效率。
附图说明
图1为本发明的低密度高透气性聚氨酯发泡材料的生产系统结构示意图；
图2为本发明的带有加热套的模具的截面结构示意图；
图3为本发明的混合搅拌室结构示意图；
图4为本发明的圆柱形物料缓冲罐结构示意图；
1-加热器、2-油泵、3-模具、31-加热套、4-平台轨道、5-混合搅拌室、51-快速冷却夹套、6-色料罐、7-电控箱、8-清洗液储存罐、9-冷水机、10-第三配料罐、11-第二配料罐、12-第一配料罐、13-移动灌注平台、32-上盖、33-箱体、34-加热管道、35-进油口、36-出油 口、51-混合室、52-搅拌器、53-注料杯、54-进水口、55-出水口、14-圆柱形物料缓冲罐、141-冷却水出口、142-冷却水入口、143-回料管。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步说明：
如图1-4所示，一种低密度高透气性聚氨酯发泡材料的生产系统，包括加热器、油泵、模具、移动灌注平台、平台轨道、混合搅拌室，加热器与油泵连接，油泵的一端与一排模具的加热套分别连接，模具沿着平台轨道一侧依次紧密排列，平台轨道上设置有移动灌注平台，移动灌注平台沿着平台轨道可以自由滑动，移动灌注平台靠近模具的一侧上方设置有混合搅拌室，混合搅拌室的前端套接有快速冷却夹套，混合搅拌室后端连接有与配料罐对应的计量泵。加热器提供加热油预热，经油泵输送入模具的加热套中循环加热，移动灌注平台能沿轨道行进灌注，模具直接摆放能紧密相连，模具间灌注转移时间很短，计量泵的引入可以完全省去每次灌注转移时清洗搅拌混合室的工序，在提高生产效率的同时大大节约了生产成本。连续生产中只需将箱体模具并列摆放在移动灌注平台旁，通过移动灌注平台的移动进行连续生产，节约物料的同时提高生产效率。
加热套包括上盖、箱体，上盖和箱体内部设置有多个并列加热管道，加热管道之间通过油管连接，进油口和出油口的油管分别与油泵、加热器一端连接。搅拌混合室包括带冷却水路的混合室、安装在混合室上方的搅拌器、安装在混合室下方的注料杯，混合室一侧设置有进水口，另一侧设置有出水口。本实施例通过对箱体模具增加加热套，使模具温度可控，进而生产表皮柔顺的发泡材料且开模时间也能大大缩短提高生产效率；对搅拌混合室进行改造，添加采用冷凝水冷却的快速冷却夹套，以快速吸收因高速搅拌产生的热量。移动灌注平台包括分别与电控箱连接的配料罐、冷水机、清洗液存储罐、色料罐，配料罐包括第一配料罐、第二配料罐、第三配料罐，第一配料罐、第二配料罐、第三配料罐、色料罐分别通过计量泵与混合搅拌室连接，清洗液储存罐通过水泵与混合搅拌室连接，冷水机与混合搅拌室上的快速冷却夹套连接。第一配料罐储存异氰酸酯，第二配料罐和第三配料罐储存多元醇组合料，生产时物料经计量泵从配料罐中抽送至前端的混合搅拌室进行混合出料，移动灌注平台可以沿着平台轨道前进并将物料均匀灌注入模具中。同时，利用电控箱控制计量泵，对色料罐的添加时间和添加量进行控制，实现自由调控的色料开启关闭时间来改善发泡过程中流纹问题。
配料罐的回流管上设置有圆柱形物料缓冲罐，圆柱形物料缓冲罐外套接有冷却器，冷却器底部设置有冷却水入口，冷却器顶部设置有冷却水出口。本实施例在物料罐和回料管 之间增加一个体积狭长带冷却夹层的圆柱型物料缓冲罐，以快速控制物料温度。
上述实施例和说明书中描述的只是说明本发明的原理和最佳实施例，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。

Claims (5)

  1. 一种低密度高透气性聚氨酯发泡材料的生产系统，包括加热器、油泵、模具、移动灌注平台、平台轨道、混合搅拌室，其特征在于：加热器与油泵连接，油泵的一端与一排模具的加热套分别连接，模具沿着平台轨道一侧依次紧密排列，平台轨道上设置有移动灌注平台，移动灌注平台沿着平台轨道可以自由滑动，移动灌注平台靠近模具的一侧上方设置有混合搅拌室，混合搅拌室的前端套接有快速冷却夹套，混合搅拌室后端连接有与配料罐对应的计量泵。
  2. 根据权利要求1所述的低密度高透气性聚氨酯发泡材料的生产系统，其特征在于：移动灌注平台包括分别与电控箱连接的配料罐、冷水机、清洗液存储罐、色料罐，配料罐包括第一配料罐、第二配料罐、第三配料罐，第一配料罐、第二配料罐、第三配料罐、色料罐分别通过计量泵与混合搅拌室连接，清洗液储存罐通过水泵与混合搅拌室连接，冷水机与混合搅拌室上的快速冷却夹套连接。
  3. 根据权利要求1所述的低密度高透气性聚氨酯发泡材料的生产系统，其特征在于：配料罐的回流管上设置有圆柱形物料缓冲罐，圆柱形物料缓冲罐外套接有冷却器，冷却器底部设置有冷却水入口，冷却器顶部设置有冷却水出口。
  4. 根据权利要求1所述的低密度高透气性聚氨酯发泡材料的生产系统，其特征在于：加热套包括上盖、箱体，上盖和箱体内部设置有多个并列加热管道，加热管道之间通过油管连接，进油口和出油口的油管分别与油泵、加热器一端连接。
  5. 根据权利要求1所述的低密度高透气性聚氨酯发泡材料的生产系统，其特征在于：搅拌混合室包括带冷却水路的混合室、安装在混合室上方的搅拌器、安装在混合室下方的注料杯，混合室一侧设置有进水口，另一侧设置有出水口。
PCT/CN2016/106925 2016-11-23 2016-11-23 一种低密度高透气性聚氨酯发泡材料的生产系统 WO2018094609A1 (zh)

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CN111421737A (zh) * 2020-05-08 2020-07-17 成都东日瑞姆机械有限公司 一种环戊烷发泡设备

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CN104552724A (zh) * 2015-01-12 2015-04-29 张家港力勤机械有限公司 转盘式聚氨酯发泡生产装置
CN205112217U (zh) * 2015-11-18 2016-03-30 广州艾科新材料股份有限公司 一种低密度高透气性聚氨酯发泡材料的生产系统
CN205291410U (zh) * 2015-12-14 2016-06-08 苏州远海材料科技有限公司 一种半硬质聚氨酯泡沫自动发泡装置

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CN104552724A (zh) * 2015-01-12 2015-04-29 张家港力勤机械有限公司 转盘式聚氨酯发泡生产装置
CN205112217U (zh) * 2015-11-18 2016-03-30 广州艾科新材料股份有限公司 一种低密度高透气性聚氨酯发泡材料的生产系统
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111421737A (zh) * 2020-05-08 2020-07-17 成都东日瑞姆机械有限公司 一种环戊烷发泡设备

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