CN202727317U - 可降解塑料双螺杆挤出机 - Google Patents

可降解塑料双螺杆挤出机 Download PDF

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Publication number
CN202727317U
CN202727317U CN2012202970687U CN201220297068U CN202727317U CN 202727317 U CN202727317 U CN 202727317U CN 2012202970687 U CN2012202970687 U CN 2012202970687U CN 201220297068 U CN201220297068 U CN 201220297068U CN 202727317 U CN202727317 U CN 202727317U
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China
Prior art keywords
screw extruder
degradable plastic
machine barrel
plastic double
double
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Expired - Fee Related
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CN2012202970687U
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English (en)
Inventor
刘仲宜
盛红兵
裘雪予
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JIANGSU HONGYI BIOCHEMICAL TECHNOLOGY Co Ltd
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JIANGSU HONGYI BIOCHEMICAL TECHNOLOGY Co Ltd
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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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/365Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
    • B29C48/37Gear pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本实用新型公开了可降解塑料双螺杆挤出机,由挤压系统、传动系统和加热冷却系统组成,所述挤压系统包括螺杆、机筒、料斗、机头和模具,所述机筒上设有抽气口,抽气口管道连通真空泵。本实用新型生产的可降解塑料制品质量好,制品中不会产生气泡。同时挤出机采用双螺杆配置,双螺杆挤出机由于具有由摩擦产生的热量较少、物料所受到的剪切比较均匀、螺杆的输送能力较大、挤出量比较稳定、物料在机筒内停留长,混合均匀,塑料制品质量更好。

Description

可降解塑料双螺杆挤出机
技术领域
本实用新型涉及挤出机领域,具体涉及可降解塑料双螺杆挤出机。
背景技术
塑料挤出机是塑料机械的一种,按塑料制品配方要求数据把混合均匀的原料经料斗送入挤出的机筒内,随着螺杆的旋转,原料受到挤压,剪切,搅拌达到完全塑化,由于螺杆一直在稳定不停地旋转,则把塑化均匀的熔融料等压,等量地从成型模具口挤出,成为具有一定形状的塑料制品。
塑料制品因化学性稳定、耐热耐腐蚀、防水质轻、制造成本低,而且容易被塑制成不同形状,所以被广泛运用在生活的各个领域。但是随着人类文明的发展,塑料的缺点也日益突显,回收利用废弃塑料时,分类十分困难,而且经济上不合算。如果燃烧处理,燃烧时会产生有毒气体,污染空气,如果填埋处理,几百年、几千年甚至几万年也不会腐烂,因此现在可降解塑料被推广运用。可降解塑料是指在生产过程中加入一定量的添加剂(如淀粉、改性淀粉或其它纤维素、光敏剂、生物降解剂等),稳定性下降,较容易在自然环境中降解。但是淀粉中含有一定的水份,如果在普通的塑料挤出机中生产,挤出制品中就会产生大量气泡。
发明内容
    本实用新型要解决的技术问题是提供一种可降解塑料双螺杆挤出机,挤出的可降解塑料制品质量好,制品中不会产生气泡。
本实用新型通过以下技术方案实现:
 可降解塑料双螺杆挤出机,由挤压系统、传动系统和加热冷却系统组成,所述挤压系统包括螺杆、机筒、料斗、机头和模具,所述机筒上设有抽气口,抽气口管道连通真空泵。
本实用新型进一步改进方案是,所述抽气口设有多个,沿机筒轴向分布。
本实用新型更进一步改进方案是,所述真空泵设有气镇阀。
本实用新型更进一步改进方案是,所述螺杆是双螺杆。
本实用新型与现有技术相比,具有以下明显优点:
本实用新型由于在挤出机的机筒上连通抽真空装置,在原料搅拌过程中将原料中的多余水分抽出,解决了可降解塑料制品易产生气泡现象。同时挤出机采用双螺杆配置,双螺杆挤出机由于具有由摩擦产生的热量较少、物料所受到的剪切比较均匀、螺杆的输送能力较大、挤出量比较稳定、物料在机筒内停留长,混合均匀,塑料制品质量更好。
附图说明
图1为本实用新型正视图。
其中:电机1;料斗2;机筒3;抽气口4;真空泵5;气镇阀6;螺杆7。
具体实施方式
如图1所示,本实用新型由挤压系统、传动系统和加热冷却系统组成,所述挤压系统包括螺杆7、机筒3、料斗2、机头和模具,所述机筒3上设有抽气口4,抽气口4管道连通真空泵5。
所述抽气口4设有2多个,沿机筒1轴向分布。
所述真空泵5设有气镇阀6。
所述螺杆7是双螺杆。

Claims (4)

1.可降解塑料双螺杆挤出机,由挤压系统、传动系统和加热冷却系统组成,所述挤压系统包括螺杆(7)、机筒(3)、料斗(2)、机头和模具,其特征在于:所述机筒(3)上设有抽气口(4),抽气口(4)管道连通真空泵(5)。
2.根据权利要求1所述的可降解塑料双螺杆挤出机,其特征在于:所述抽气口(4)设有多个,沿机筒(3)轴向分布。
3.根据权利要求1所述的可降解塑料双螺杆挤出机,其特征在于:所述真空泵(5)设有气镇阀(6)。
4.根据权利要求1所述的可降解塑料双螺杆挤出机,其特征在于:所述螺杆(7)是双螺杆。
CN2012202970687U 2012-06-25 2012-06-25 可降解塑料双螺杆挤出机 Expired - Fee Related CN202727317U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066609A (zh) * 2015-08-20 2015-11-18 无锡龙派机械科技有限公司 一种双螺杆干燥机
CN105469904A (zh) * 2015-12-31 2016-04-06 天长市富信电子有限公司 一种用于阻燃电源线的芯线挤出生产线
CN110774566A (zh) * 2019-11-11 2020-02-11 芜湖荣基密封系统有限公司 橡胶挤出装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066609A (zh) * 2015-08-20 2015-11-18 无锡龙派机械科技有限公司 一种双螺杆干燥机
CN105469904A (zh) * 2015-12-31 2016-04-06 天长市富信电子有限公司 一种用于阻燃电源线的芯线挤出生产线
CN110774566A (zh) * 2019-11-11 2020-02-11 芜湖荣基密封系统有限公司 橡胶挤出装置

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Granted publication date: 20130213

Termination date: 20130625