CN112497783A - 一种覆膜铁加工工艺及设备 - Google Patents

一种覆膜铁加工工艺及设备 Download PDF

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CN112497783A
CN112497783A CN202011242943.7A CN202011242943A CN112497783A CN 112497783 A CN112497783 A CN 112497783A CN 202011242943 A CN202011242943 A CN 202011242943A CN 112497783 A CN112497783 A CN 112497783A
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coated iron
drying
roller
metal plate
processing technology
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王翔宇
陈永平
邢美
刘晓跃
张婷婷
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Changzhou Yongen Packaging Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

本发明公开了一种覆膜铁加工工艺及设备,属于覆膜铁加工领域,一种覆膜铁加工工艺,包括以下步骤:步骤一、选取原料与助剂,所述原料为PLA、PBAT、PHA、PBS、PET、PV、PE与PP中的一种,所述助剂包含有辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂;步骤二、准备原料与助剂份数,所述原料的份数为100份。本发明,通过辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂混合原料进行制作溶体薄膜,改善材料的黏度,提高可加工性,降低熔体膜与金属板复合难度,提高材料的加工流动性,降低熔体膜与金属板复合难度,以及提高材料耐油性,抗菌性等,而抗氧剂防止材料加工中氧化降解,解决了工艺技术上的难题。

Description

一种覆膜铁加工工艺及设备
技术领域
本发明涉及覆膜铁加工领域,更具体地说,涉及一种覆膜铁加工工艺及设备。
背景技术
覆膜加工由于不使用粘着剂、溶剂,所以不含甲醛,且塑料膜可经过美化装饰、抗菌、防染等处理,确保了人体的安全性和健康、同时又起到了环保的作用。应用于制罐行业的覆膜板,俗称为覆膜铁(Laminated Steel),是采用PET,PC,PE或PP薄膜与金属板材(镀锌板,冷轧板,铝板,不锈钢板)进行覆合而成。传统的金属罐内侧都必须经过涂装加工,而涂装方法所含有的物质,对人体和环境都会产生有害影响,尤其是食用罐头,现在的处理方法是在罐的内壁采用树脂进行涂装。但是,因这种涂装工艺所使用的涂料里含有环境激素的有害物质―双酚A类(Bis-phenol A)物质,是一种国际公认的环境激素,而且可能出现溶出的问题,一旦溶出超标,会对人体产生不良影响。且这个问题导致的严重后果已经引起国内外的重视。金属板覆膜技术的诞生,是金属罐生产的革命性进步。随着它的广泛应用,传统金属罐生产工艺和技术将得到颠覆,生产率、生产成本、清洁卫生、环境保护等各个方面也都将前进一大步。
传统的覆膜铁的加工工艺,需要对金属板材以及覆膜进行二次加热与加工,能源耗费大,且加工工艺繁琐,耗时耗力生产效率低下,且受限于工艺其能够选择的覆膜原料的范围受到限制,故而提出了一种覆膜铁加工工艺及设备来解决上述问题。
发明内容
1.要解决的技术问题
针对现有技术中存在的问题,本发明的目的在于提供一种覆膜铁加工工艺及设备,具备方便加工,原料选择性多与覆膜效果更好的优点,解决了传统的覆膜铁的加工工艺,需要对金属板材以及覆膜进行二次加热与加工,能源耗费大,且加工工艺繁琐,耗时耗力生产效率低下,且受限于工艺其能够选择的覆膜原料的范围受到限制的问题。
2.技术方案
为解决上述问题,本发明采用如下的技术方案。
一种覆膜铁加工工艺,包括以下步骤:
步骤一、选取原料与助剂,所述原料为PLA、PBAT、PHA、PBS、PET、PV、PE与PP中的一种,所述助剂包含有辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂;
步骤二、准备原料与助剂份数,所述原料的份数为100份,所述辛癸酸甘油酯与乙酰柠檬酸三丁酯的份数为5~15份,所述抗氧剂的份数为0.5~1.5份,所述载体银抗菌剂的份数为2~5份;
步骤三、将原料与助剂混合利用挤出机熔融塑化并通过机头模口挤出形成溶体薄膜;
步骤四、将金属板材经清洗与干燥;
步骤五、溶体薄膜直接与清洗处理后的金属板材复合;
步骤六、对覆膜铁进行冷却;
步骤七、对覆膜铁进行蒸煮、干燥。
优选的,所述步骤四中清洗过程分别利用碱洗喷头与水洗喷头对金属板材进行清洗。
优选的,所述步骤四中干燥方式通过吸湿辊与风干箱进行干燥。
优选的,还包括以下步骤:
蒸煮、干燥后的覆膜铁通过收集辊进行收集。
一种覆膜铁加工设备,所述挤出机的一侧固定安装与其相连通的搅拌箱,所述机头模口一体成型于挤出机的底部,所述机头模口的底部设置有工作台,所述工作台上固定安装有复合辊与气刀,所述气刀位于复合辊的右侧,所述工作台的左侧设置有清洗装置与放料辊,所述工作台的右侧设置有蒸煮干燥装置,所述收集辊位于蒸煮干燥装置的右侧。
优选的,所述清洗装置包含有碱洗箱与水洗箱,所述碱洗喷头与水洗喷头分别固定安装于碱洗箱与水洗箱的内部,所述吸湿辊与风干箱位于水洗箱的右侧。
优选的,所述蒸煮干燥装置包含有蒸汽箱,所述蒸汽箱的设置两排蒸汽喷头,所述蒸汽箱的右侧设置有烘干箱。
3.有益效果
相比于现有技术,本发明的优点在于:
(1)本方案,相对于传统覆膜技术,减少了第二次升温热压的环节,节能环保,减少碳排放,降低成本,提高覆膜板的耐腐蚀、抗锈蚀等特性,高于涂料板和普通金属板,熔体状态塑料黏度更大,复合性更好。
(2)本方案,薄膜材料的选择更广泛,普通覆膜技术对塑料薄膜的厚度和收缩率都有要求,薄膜的工艺条件相对苛刻,使得一些可降解的环保材料,难以应用,但是流延法一步覆膜技术不存在这个问题,覆膜板化学稳定性好、耐候性能、耐老化等等,普通覆膜板有的优势,他都有。
(3)本方案,通过辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂混合原料进行制作溶体薄膜,改善材料的黏度,提高可加工性,降低熔体膜与金属板复合难度,提高材料的加工流动性,降低熔体膜与金属板复合难度,以及提高材料耐油性,抗菌性等,而抗氧剂防止材料加工中氧化降解,解决了工艺技术上的难题。
附图说明
图1为本发明的工艺流程示意图。
图中标号说明:
1、挤出机;2、机头模口;3、搅拌箱;4、工作台;5、复合辊;6、气刀;7、清洗装置;71、碱洗箱;72、水洗箱;73、碱洗喷头;74、水洗喷头;75、吸湿辊;76、风干箱;8、放料辊;9、收集辊;10、蒸煮干燥装置;101、蒸汽箱;102、蒸汽喷头;103、烘干箱。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述;显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要说明的是,术语“上”、“下”、“内”、“外”“顶/底端”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“设置有”、“套设/接”、“连接”等,应做广义理解,例如“连接”,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
请参阅图1,一种覆膜铁加工工艺,包括以下步骤:
步骤一、选取原料与助剂,原料为PLA、PBAT、PHA、PBS、PET、PV、PE与PP中的一种,助剂包含有辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂;
步骤二、准备原料与助剂份数,原料的份数为100份,辛癸酸甘油酯与乙酰柠檬酸三丁酯的份数为5~15份,抗氧剂的份数为0.5~1.5份,载体银抗菌剂的份数为2~5份;
步骤三、将原料与助剂混合利用挤出机1熔融塑化并通过机头模口2挤出形成溶体薄膜;
步骤四、将金属板材经清洗与干燥;
步骤五、溶体薄膜直接与清洗处理后的金属板材复合;
步骤六、对覆膜铁进行冷却;
步骤七、对覆膜铁进行蒸煮、干燥。
进一步的,步骤四中清洗过程分别利用碱洗喷头73与水洗喷头74对金属板材进行清洗,清楚金属板材表面附着的杂质。
进一步的,步骤四中干燥方式通过吸湿辊75与风干箱76进行干燥。
进一步的,还包括以下步骤:
蒸煮、干燥后的覆膜铁通过收集辊9进行收集。
一种覆膜铁加工设备,挤出机1的一侧固定安装与其相连通的搅拌箱3,机头模口2一体成型于挤出机1的底部,机头模口2的底部设置有工作台4,工作台4上固定安装有复合辊5与气刀6,气刀6位于复合辊5的右侧,工作台4的左侧设置有清洗装置7与放料辊8,工作台4的右侧设置有蒸煮干燥装置10,收集辊9位于蒸煮干燥装置10的右侧,通过搅拌箱3对原料与助剂进行混合搅拌,然后通过机头模口2挤出形成溶体薄膜利用清洗装置7对金属板材进行清洗与干燥利用复合辊5将溶体薄膜与金属板材进行复合,接着利用气刀6提高两者时间的贴合度,避免凹凸不平,然后通过在冷却后经过蒸煮干燥装置10进行加工提高复合度,然后利用收集辊9收集,相对于传统覆膜技术,减少了第二次升温热压的环节,节能环保,减少碳排放,降低成本,提高覆膜板的耐腐蚀、抗锈蚀等特性,高于涂料板和普通金属板,熔体状态塑料黏度更大,复合性更好。
进一步的,清洗装置7包含有碱洗箱71与水洗箱72,碱洗喷头73与水洗喷头74分别固定安装于碱洗箱71与水洗箱72的内部,吸湿辊75与风干箱76位于水洗箱72的右侧,通过碱洗箱71与水洗箱72内部的碱洗喷头73与水洗喷头74对金属板材进行清洗,避免金属板材的表面残余杂质,在通过吸湿辊75初步去除水分,在通过风干箱76去除残余水分,同时避免温度升高,以便于后续复合工序。
进一步的,蒸煮干燥装置10包含有蒸汽箱101,蒸汽箱101的设置两排蒸汽喷头102,蒸汽箱101的右侧设置有烘干箱103,利用蒸汽箱101与蒸汽喷头102进行二次加湿提高复合度,在通过烘干箱103再次烘干。
工作原理:选取原料与助剂,所述原料为PLA、PBAT、PHA、PBS、PET、PV、PE与PP中的一种,所述助剂包含有辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂,准备原料与助剂份数,所述原料的份数为100份,所述辛癸酸甘油酯与乙酰柠檬酸三丁酯的份数为5~15份,所述抗氧剂的份数为0.5~1.5份,所述载体银抗菌剂的份数为2~5份,通过搅拌箱3对原料与助剂进行混合搅拌,然后通过机头模口2挤出形成溶体薄膜利用清洗装置7对金属板材进行清洗与干燥利用复合辊5将溶体薄膜与金属板材进行复合,接着利用气刀6提高两者时间的贴合度,避免凹凸不平,然后通过在冷却后经过蒸煮干燥装置10进行加工提高复合度,然后利用收集辊9收集,相对于传统覆膜技术,减少了第二次升温热压的环节,节能环保,减少碳排放,降低成本,提高覆膜板的耐腐蚀、抗锈蚀等特性,高于涂料板和普通金属板,熔体状态塑料黏度更大,复合性更好,薄膜材料的选择更广泛,普通覆膜技术对塑料薄膜的厚度和收缩率都有要求,薄膜的工艺条件相对苛刻,使得一些可降解的环保材料,难以应用,但是流延法一步覆膜技术不存在这个问题,覆膜板化学稳定性好、耐候性能、耐老化等等,普通覆膜板有的优势,他都有,通过辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂混合原料进行制作溶体薄膜,改善材料的黏度,提高可加工性,降低熔体膜与金属板复合难度,提高材料的加工流动性,降低熔体膜与金属板复合难度,以及提高材料耐油性,抗菌性等,而抗氧剂防止材料加工中氧化降解,解决了工艺技术上的难题。
以上所述,仅为本发明较佳的具体实施方式;但本发明的保护范围并不局限于此。任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其改进构思加以等同替换或改变,都应涵盖在本发明的保护范围内。

Claims (7)

1.一种覆膜铁加工工艺,其特征在于:包括以下步骤:
步骤一、选取原料与助剂,所述原料为PLA、PBAT、PHA、PBS、PET、PV、PE与PP中的一种,所述助剂包含有辛癸酸甘油酯、乙酰柠檬酸三丁酯、抗氧剂与载体银抗菌剂;
步骤二、准备原料与助剂份数,所述原料的份数为100份,所述辛癸酸甘油酯与乙酰柠檬酸三丁酯的份数为5~15份,所述抗氧剂的份数为0.5~1.5份,所述载体银抗菌剂的份数为2~5份;
步骤三、将原料与助剂混合利用挤出机(1)熔融塑化并通过机头模口(2)挤出形成溶体薄膜;
步骤四、将金属板材经清洗与干燥;
步骤五、溶体薄膜直接与清洗处理后的金属板材复合;
步骤六、对覆膜铁进行冷却;
步骤七、对覆膜铁进行蒸煮、干燥。
2.根据权利要求1所述的一种覆膜铁加工工艺,其特征在于:所述步骤四中清洗过程分别利用碱洗喷头(73)与水洗喷头(74)对金属板材进行清洗。
3.根据权利要求1所述的一种覆膜铁加工工艺,其特征在于:所述步骤四中干燥方式通过吸湿辊(75)与风干箱(76)进行干燥。
4.根据权利要求1所述的一种覆膜铁加工工艺,其特征在于:还包括以下步骤:
蒸煮、干燥后的覆膜铁通过收集辊(9)进行收集。
5.一种覆膜铁加工设备,其特征在于:所述挤出机(1)的一侧固定安装与其相连通的搅拌箱(3),所述机头模口(2)一体成型于挤出机(1)的底部,所述机头模口(2)的底部设置有工作台(4),所述工作台(4)上固定安装有复合辊(5)与气刀(6),所述气刀(6)位于复合辊(5)的右侧,所述工作台(4)的左侧设置有清洗装置(7)与放料辊(8),所述工作台(4)的右侧设置有蒸煮干燥装置(10),所述收集辊(9)位于蒸煮干燥装置(10)的右侧。
6.一种覆膜铁加工设备,其特征在于:所述清洗装置(7)包含有碱洗箱(71)与水洗箱(72),所述碱洗喷头(73)与水洗喷头(74)分别固定安装于碱洗箱(71)与水洗箱(72)的内部,所述吸湿辊(75)与风干箱(76)位于水洗箱(72)的右侧。
7.一种覆膜铁加工设备,其特征在于:所述蒸煮干燥装置(10)包含有蒸汽箱(101),所述蒸汽箱(101)的设置两排蒸汽喷头(102),所述蒸汽箱(101)的右侧设置有烘干箱(103)。
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