CN109159350A - 一种乳胶制品生产工艺 - Google Patents

一种乳胶制品生产工艺 Download PDF

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Publication number
CN109159350A
CN109159350A CN201810919808.8A CN201810919808A CN109159350A CN 109159350 A CN109159350 A CN 109159350A CN 201810919808 A CN201810919808 A CN 201810919808A CN 109159350 A CN109159350 A CN 109159350A
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latex
foaming material
molding die
emulsion foaming
emulsion
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贾道熙
贾道忠
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Wenzhou Super Thailand Latex Products Co Ltd
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Wenzhou Super Thailand Latex Products Co Ltd
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Priority to CN201810919808.8A priority Critical patent/CN109159350A/zh
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/36Feeding the material to be shaped
    • B29C44/38Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/10Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/049Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping 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
    • B29C44/04Shaping 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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/60Measuring, controlling or regulating

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

本发明公开了一种乳胶制品生产工艺,包括以下步骤:将乳胶溶液和矿石粉混合进行高速搅拌;将乳胶溶液和硫化剂、凝固剂加入到发泡设备进行发泡;以压力注入方式将乳胶发泡料加入到乳胶成型模具内,调节压力大小,控制乳胶发泡料的被压缩程度来改变乳胶发泡料的密度;将乳胶成型模具封口并保压,然后放到高温烘箱内进行乳胶发泡料的高温硫化定型;打开乳胶成型模具的排气孔进行排气;将乳胶成型模具放置于蒸箱内进行热蒸;打开乳胶成型模具,取出热蒸蒸熟的乳胶发泡料;

Description

一种乳胶制品生产工艺
技术领域
本发明涉及一种乳胶制品生产工艺。
背景技术
天然乳胶制品包括乳胶枕头、乳胶床垫、乳胶靠垫等,由于具有防螨防菌、良好透气性和吸湿性的优点,且其独特的柔软触觉和乳胶高弹性能够顺应人体头部及身体轮廓,更符合人体睡眠习惯,带给使用者健康舒适的睡眠,所以越来越多得到广大消费者的欢迎和使用。但乳胶制品普遍硬度很软,不能满足不同客户使用需求,因此,需要采用一些方法来调整乳胶制品的硬度。现有技术中,一般是通过乳胶料的发泡程度不同来实现,在相同体积前提下,如果乳胶料的发泡密度大,则制成的乳胶制品重量大,乳胶制品硬度大;如果乳胶料的发泡密度小,则制成的乳胶制品重量小,乳胶制品硬度小就更软。而乳胶料的发泡在发泡设备中完成,发泡密度受发泡搅拌速度、发泡温度、发泡时间、乳胶料内添加物、发泡机内加入空气量等诸多因素影响;所以要生产不同硬度乳胶制品,需要改变乳胶料的发泡密度,而上述诸多因素的综合作用效果不可准确控制,因此发泡密度不易准确控制,而且易产生较大误差;所以当发泡料加入到乳胶成型模具内时,由于乳胶成型模具的模腔体积相同,所以加入的发泡料的重量就会有所不同,往往误差会较大,这样一来,就难以生产质量稳定的相同硬度或不同硬度要求的乳胶制品,不符合新制定的乳胶制品的行业标准。并且,由于发泡料加入到乳胶成型模具内时基本没有压力,所以当乳胶成型模具内的发泡料在蒸箱内进行热蒸蒸熟得到定型时,乳胶制品的表面不可避免会有一定的疏松塌陷等缺陷,乳胶制品的表面品相相对较差。
发明内容
为解决背景技术存在的不足,本发明是采取如下技术方案来实现的:
一种乳胶制品生产工艺,其特征在于包括以下步骤: 将乳胶溶液和矿石粉以一定重量比混合进行高速搅拌,使之混合均匀;将上述制得的乳胶溶液和硫化剂、凝固剂以一定重量比加入到发泡设备进行发泡,发泡过程中加入空气,制成发泡密度恒定的乳胶发泡料;以压力注入方式将乳胶发泡料加入到乳胶成型模具内,调节压力大小,控制乳胶发泡料的被压缩程度来改变乳胶发泡料的密度;待乳胶发泡料填充充满乳胶成型模具的整个模腔后,将乳胶成型模具封口并保压,然后放到高温烘箱内进行乳胶发泡料的高温硫化定型;待乳胶发泡料高温定型后,打开乳胶成型模具的排气孔进行排气; 将乳胶成型模具放置于蒸箱内进行热蒸直至乳胶发泡料被热蒸蒸熟;打开乳胶成型模具,取出热蒸蒸熟的乳胶发泡料;清洗、烘干乳胶发泡料,即完成乳胶制品的生产。
上述技术方案的乳胶制品生产工艺,首先可以不管生产的乳胶制品要达到什么的硬度要求,只要以一定参数或比例的发泡搅拌速度、发泡温度、发泡时间、乳胶料内添加物、发泡机内加入空气量,在发泡设备中制成发泡密度恒定的乳胶发泡料即可;然后以压力控制方式将乳胶发泡料加入到乳胶成型模具内,通过调节压力大小,控制乳胶发泡料在乳胶成型模具内的被压缩程度来改变乳胶发泡料的密度;在压力相同时,乳胶发泡料的密度就基本相同而不会有较大误差,就可制得产品质量稳定的相同硬度要求的乳胶制品;在改变压力后,乳胶发泡料的密度就随之改变但同样不会有较大误差,就可制得产品质量稳定的不同硬度要求的乳胶制品;而压力的改变可方便进行而且可精确控制,这样一来,本发明的技术方案就可方便控制并生产产品质量稳定的相同硬度或不同硬度要求的乳胶制品,满足不同客户使用需求,同时更好符合新制定的乳胶制品的行业标准。另外,由于发泡料加入到乳胶成型模具内时具有一定压力,所以发泡料可更好地填充充满于乳胶成型模具内,使定型的乳胶制品的表面不易产生疏松塌陷等缺陷,乳胶制品的表面品相会很好。
作为优选,步骤中,乳胶溶液的固态含量为60%及以上,乳胶溶液和矿石粉的重量比为100:1.0-2.0。
作为优选,步骤中,乳胶溶液和硫化剂、凝固剂的重量比为100:2.5:1.5。
作为优选,步骤中,乳胶发泡料通过压力泵泵入到乳胶成型模具内。
具体实施方式
本发明的一种乳胶制品生产工艺,包括以下步骤: 将乳胶溶液和矿石粉以一定重量比混合进行高速搅拌,使之混合均匀,根据不同矿石粉的添加,可使生产的乳胶制品具有不同的保健功能;将上述制得的乳胶溶液和硫化剂、凝固剂以一定重量比加入到发泡设备进行发泡,发泡过程中加入空气,制成发泡密度恒定的乳胶发泡料,硫化剂为氧化锌,凝固剂为氟硅酸钠;以压力注入方式将乳胶发泡料加入到乳胶成型模具内,调节压力大小,控制乳胶发泡料在乳胶成型模具内的被压缩程度来改变乳胶发泡料的密度;待乳胶发泡料填充充满乳胶成型模具的整个模腔后,将乳胶成型模具封口并保压,然后放到高温烘箱内进行乳胶发泡料的高温硫化定型;待乳胶发泡料高温定型后,打开乳胶成型模具的排气孔进行排气;将乳胶成型模具放置于蒸箱内进行热蒸直至乳胶发泡料被热蒸蒸熟,热蒸温度控制在100-120度;打开乳胶成型模具,取出热蒸蒸熟的乳胶发泡料;清洗、烘干乳胶发泡料,即完成乳胶制品的生产。步骤中,乳胶溶液的固态含量为60%及以上,乳胶溶液和矿石粉的重量比为100:1.0-2.0。步骤中,乳胶溶液和硫化剂、凝固剂的重量比为100:2.5:1.5。步骤中,乳胶发泡料通过压力泵泵入到乳胶成型模具内,压力泵的压力可调节。
以规格1000m X 2000m X 7.5mm的乳胶床垫的生产为例,在乳胶发泡料的进料压力为1Mpa时,生产的乳胶床垫的重量为9.0公斤,重量误差在0.08公斤以内;在乳胶发泡料的进料压力调整为2Mpa时,生产的乳胶床垫的重量为12公斤,重量误差在0.1公斤以内。

Claims (4)

1.一种乳胶制品生产工艺,其特征在于包括以下步骤: 将乳胶溶液和矿石粉以一定重量比混合进行高速搅拌,使之混合均匀;将上述制得的乳胶溶液和硫化剂、凝固剂以一定重量比加入到发泡设备进行发泡,发泡过程中加入空气,制成发泡密度恒定的乳胶发泡料;以压力注入方式将乳胶发泡料加入到乳胶成型模具内,调节压力大小,控制乳胶发泡料的被压缩程度来改变乳胶发泡料的密度;待乳胶发泡料填充充满乳胶成型模具的整个模腔后,将乳胶成型模具封口并保压,然后放到高温烘箱内进行乳胶发泡料的高温硫化定型;待乳胶发泡料高温定型后,打开乳胶成型模具的排气孔进行排气; 将乳胶成型模具放置于蒸箱内进行热蒸直至乳胶发泡料被热蒸蒸熟;打开乳胶成型模具,取出热蒸蒸熟的乳胶发泡料;清洗、烘干乳胶发泡料,即完成乳胶制品的生产。
2.如权利要求1所述的一种乳胶制品生产工艺,其特征在于步骤中,乳胶溶液的固态含量为60%及以上,乳胶溶液和矿石粉的重量比为100:1.0-2.0。
3.如权利要求1所述的一种乳胶制品生产工艺,其特征在于步骤中,乳胶溶液和硫化剂、凝固剂的重量比为100:2.5:1.5。
4.如权利要求1所述的一种乳胶制品生产工艺,其特征在于步骤中,乳胶发泡料通过压力泵泵入到乳胶成型模具内。
CN201810919808.8A 2018-08-14 2018-08-14 一种乳胶制品生产工艺 Withdrawn CN109159350A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111516199A (zh) * 2020-04-20 2020-08-11 温州飞龙聚氨酯设备工程有限公司 一种聚氨酯发泡机
CN111944297A (zh) * 2019-05-14 2020-11-17 常州橡弋国际贸易有限公司 一种乳胶枕生产用硫化包及其制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104875320A (zh) * 2015-04-21 2015-09-02 吴清照 乳胶床垫生产工艺

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104875320A (zh) * 2015-04-21 2015-09-02 吴清照 乳胶床垫生产工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111944297A (zh) * 2019-05-14 2020-11-17 常州橡弋国际贸易有限公司 一种乳胶枕生产用硫化包及其制备方法
CN111516199A (zh) * 2020-04-20 2020-08-11 温州飞龙聚氨酯设备工程有限公司 一种聚氨酯发泡机

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