CN107962760A - 一种双层复合吹塑瓶的加工工艺 - Google Patents
一种双层复合吹塑瓶的加工工艺 Download PDFInfo
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
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- B32—LAYERED PRODUCTS
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
- B29C49/04108—Extrusion blow-moulding extruding several parisons parallel to each other at the same time
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
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Abstract
本发明公开了一种双层复合吹塑瓶的加工工艺,包括:吹塑瓶本体,所述吹塑瓶本体包括:外层TPR材料层、内层PE材料层,所述吹塑瓶本体是采用双螺杆挤出吹瓶工艺加工而成的。通过上述方式,本发明工艺简单易控,成品合格率高;采用双螺杆分别将TPR材料、PP材料挤出塑化复合,形成具有外层为TPR、内层为PE的吹塑瓶胚,再将瓶胚经吹气、拉伸得到双层复合结构的吹塑瓶,制得的吹塑瓶具有TPR产品的优异性能,且成本低。
Description
技术领域
本发明涉及吹塑瓶加工技术领域,特别是涉及一种双层复合吹塑瓶的加工工艺。
背景技术
目前吹塑瓶多为单一材料制备而成的,一般材料有PE材料和TPR材料,制得的TPR吹塑瓶与PE吹塑瓶的性能对比如下:1、TPR产品具有很好的柔软度和舒适的触感;PE产品基本不具有柔软性;2、TPR产品具有高回弹性,PE产品则没有回弹性;3、TPR可达到雾面效果,PE则是亮面效果。因此TPR产品的综合性能优于PE产品,市场需求大。但是TPR材料是普通PE材料的价格的2倍以上甚至达到3倍,造成原料使用成本高,提高了生产成本。
发明内容
本发明主要解决的技术问题是提供一种双层复合吹塑瓶的加工工艺,采用TPR、PE材料双层复合加工而成,具有TPR产品的优异性能,且降低了原料的使用成本。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种双层复合吹塑瓶的加工工艺,包括:吹塑瓶本体,所述吹塑瓶本体包括:外层TPR材料层、内层PE材料层,所述吹塑瓶本体是采用双螺杆挤出吹瓶工艺加工而成的,包括如下步骤:
(1)原料熔融: 分别将TPR材料加入到A料筒内加热熔融得到TPR熔体,将PE材料加入到B料筒内加热熔融得到PE熔体;
(2)双螺杆挤出成型:步骤(1)制得的TPR熔体经A螺杆压缩、压实,PE熔体经B螺杆压缩、压实,并由变频器调节A、B螺杆的转速,使TPR熔体、PE熔体经过A、B双螺杆挤出,再经模头复合形成内层、外层粘合在一起的瓶胚体;
(3)双层复合吹塑瓶成型:将步骤(2)制得瓶胚体放入模具内,经吹气、拉伸制得双层复合吹塑瓶。
在本发明一个较佳实施例中,所述外层TPR材料层与内层PE材料层的质量配比为3~5:5~7。
在本发明一个较佳实施例中,所述A料筒内TPR材料的加热熔融温度为180-190℃。
在本发明一个较佳实施例中,所述B料筒内PE材料的加热熔融温度为165-175℃。
在本发明一个较佳实施例中,所述A螺杆的转速为45-50 r/min。
在本发明一个较佳实施例中,所述B螺杆的转速为55-60r/min。
本发明的有益效果是:本发明工艺简单易控,成品合格率高;采用双螺杆分别将TPR材料、PP材料挤出塑化复合,形成具有外层为TPR、内层为PE的吹塑瓶胚,再将瓶胚经吹气、拉伸得到双层复合结构的吹塑瓶,制得的吹塑瓶具有TPR产品的优异性能,且成本低。
具体实施方式
下面对本发明的较佳实施例进行详细阐述,以使本发明的优点和特征能更易于被本领域技术人员理解,从而对本发明的保护范围做出更为清楚明确的界定。
本发明实施例包括:
一种双层复合吹塑瓶的加工工艺,包括:吹塑瓶本体,所述吹塑瓶本体包括:外层TPR材料层、内层PE材料层,所述吹塑瓶本体是采用双螺杆挤出吹瓶工艺加工而成的。
实施例一
本实施例中,所述双层复合吹塑瓶的加工工艺,包括如下步骤:
(1)原料熔融: 将TPR材料加入到A料筒内,在180℃高温下熔融得到TPR熔体,将PE材料加入到B料筒内,在165℃高温下熔融得到PE熔体;
(2)双螺杆挤出成型:步骤(1)制得的TPR熔体经A螺杆压缩、压实,PE熔体经B螺杆压缩、压实,并由变频器调节A螺杆的转速为45r/min,调节B螺杆的转速为55r/min,TPR熔体、PE熔体分别经过A、B双螺杆挤出,再经模头复合形成TPR外层、PE内层粘合在一起的瓶胚体;
(3)双层复合吹塑瓶成型:将步骤(2)制得瓶胚体放入模具内,经吹气、拉伸制得双层复合吹塑瓶。
其中,所述外层TPR材料层与内层PE材料层的质量配比为5:5。
实施例二
本实施例中,所述双层复合吹塑瓶的加工工艺,包括如下步骤:
(1)原料熔融: 将TPR材料加入到A料筒内,在185℃高温下熔融得到TPR熔体,将PE材料加入到B料筒内,在170℃高温下熔融得到PE熔体;
(2)双螺杆挤出成型:步骤(1)制得的TPR熔体经A螺杆压缩、压实,PE熔体经B螺杆压缩、压实,并由变频器调节A螺杆的转速为48r/min,调节B螺杆的转速为57r/min,TPR熔体、PE熔体分别经过A、B双螺杆挤出,再经模头复合形成TPR外层、PE内层粘合在一起的瓶胚体;
(3)双层复合吹塑瓶成型:将步骤(2)制得瓶胚体放入模具内,经吹气、拉伸制得双层复合吹塑瓶。
其中,所述外层TPR材料层与内层PE材料层的质量配比为4:6。
实施例三
本实施例中,所述双层复合吹塑瓶的加工工艺,包括如下步骤:
(1)原料熔融: 将TPR材料加入到A料筒内,在190℃高温下熔融得到TPR熔体,将PE材料加入到B料筒内,在175℃高温下熔融得到PE熔体;
(2)双螺杆挤出成型:步骤(1)制得的TPR熔体经A螺杆压缩、压实,PE熔体经B螺杆压缩、压实,并由变频器调节A螺杆的转速为50r/min,调节B螺杆的转速为60r/min,TPR熔体、PE熔体分别经过A、B双螺杆挤出,再经模头复合形成TPR外层、PE内层粘合在一起的瓶胚体;
(3)双层复合吹塑瓶成型:将步骤(2)制得瓶胚体放入模具内,经吹气、拉伸制得双层复合吹塑瓶。
其中,所述外层TPR材料层与内层PE材料层的质量配比为3:7。
本发明揭示了一种双层复合吹塑瓶的加工工艺,工艺简单易控,成品合格率高;采用双螺杆分别将TPR材料、PP材料挤出塑化复合,形成具有外层为TPR、内层为PE的吹塑瓶胚,再将瓶胚经吹气、拉伸得到双层复合结构的吹塑瓶,制得的吹塑瓶具有TPR产品的优异性能,且成本低。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (6)
1.一种双层复合吹塑瓶的加工工艺,其特征在于,包括:吹塑瓶本体,所述吹塑瓶本体包括:外层TPR材料层、内层PE材料层,所述吹塑瓶本体是采用双螺杆挤出吹瓶工艺加工而成的,包括如下步骤:
(1)原料熔融: 分别将TPR材料加入到A料筒内加热熔融得到TPR熔体,将PE材料加入到B料筒内加热熔融得到PE熔体;
(2)双螺杆挤出成型:步骤(1)制得的TPR熔体经A螺杆压缩、压实,PE熔体经B螺杆压缩、压实,并由变频器调节A、B螺杆的转速,使TPR熔体、PE熔体经过A、B双螺杆挤出,再经模头复合形成内层、外层粘合在一起的瓶胚体;
(3)双层复合吹塑瓶成型:将步骤(2)制得瓶胚体放入模具内,经吹气、拉伸制得双层复合吹塑瓶。
2.根据权利要求1所述的双层复合吹塑瓶的加工工艺,其特征在于,所述外层TPR材料层与内层PE材料层的质量配比为3~5:5~7。
3.根据权利要求1所述的双层复合吹塑瓶的加工工艺,其特征在于,所述A料筒内TPR材料的加热熔融温度为180-190℃。
4.根据权利要求1所述的双层复合吹塑瓶的加工工艺,其特征在于,所述B料筒内PE材料的加热熔融温度为165-175℃。
5.根据权利要求1所述的双层复合吹塑瓶的加工工艺,其特征在于,所述A螺杆的转速为45-50 r/min。
6.根据权利要求1所述的双层复合吹塑瓶的加工工艺,其特征在于,所述B螺杆的转速为55-60r/min。
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CN112677449A (zh) * | 2020-12-28 | 2021-04-20 | 常熟市沈氏塑业有限公司 | 一种可降解双层塑料瓶及其吹塑成型方法 |
CN113459475A (zh) * | 2021-07-02 | 2021-10-01 | 佛山市三水兆丰和塑料制品有限公司 | 一种加热瓶带嵌件的吹塑工艺 |
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