CN202448337U - 一种用于双螺杆塑胶挤出机的螺杆 - Google Patents

一种用于双螺杆塑胶挤出机的螺杆 Download PDF

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Publication number
CN202448337U
CN202448337U CN2012200250643U CN201220025064U CN202448337U CN 202448337 U CN202448337 U CN 202448337U CN 2012200250643 U CN2012200250643 U CN 2012200250643U CN 201220025064 U CN201220025064 U CN 201220025064U CN 202448337 U CN202448337 U CN 202448337U
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screw
cross
section
screws
bar core
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Expired - Fee Related
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CN2012200250643U
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English (en)
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袁森
陈云山
袁柳淑
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Yancheng Shen Yuan Plastic Cement Co Ltd
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Yancheng Shen Yuan Plastic Cement 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
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/52Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
    • B29C48/525Conical screws

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

Abstract

本实用新型公开了一种用于双螺杆塑胶挤出机的螺杆,包括杆芯(1)和杆芯(1)上的螺棱(2),两根螺杆上的螺棱(2)相互啮合,其特征在于所述杆芯(1)的横截面为正多边形。本实用新型的螺杆杆芯横截面采用正多边形设计,正多边形的棱角可与对应的螺棱一起对原料进行压缩,使原料始终以半环的形式随着螺杆的旋转而前移,混合效果的同时原料受热均匀,并且延长了原料在塑化时间,使塑化效果得到进一步优化。

Description

一种用于双螺杆塑胶挤出机的螺杆
技术领域
 本实用新型涉及一种挤出机,具体地说是一种用于双螺杆塑胶挤出机的螺杆。
背景技术
双螺杆挤出机是塑胶材料生产的关键设备,它将配方物料混合、熔融、输送。双螺杆塑胶挤出机的机筒由筒体和螺杆组成,螺杆为两根,分别设置在机筒筒体内,螺杆由杆芯和杆芯上的螺棱组成,两根螺杆的螺棱相互啮合。现有双螺杆塑胶挤出机的螺杆杆芯的横截面为原形,且两根螺杆之间的间隙较小,这样就将原料封闭在一个个半圆形螺槽里,原料不能翻动,使得半圆形原料外径容易受热过多,内径得不到有效的受热,造成原料受热不均,使得一部分原料无法有效得到热量,影响塑化;另一部分原料手热量过大而造成焦黄料。
发明内容
本实用新型的目的是针对现有技术的缺陷,提供一种原料受热均匀的用于双螺杆塑胶挤出机的螺杆。
本实用新型的目的是通过以下技术方案解决的:
一种用于双螺杆塑胶挤出机的螺杆,包括杆芯和杆芯上的螺棱,两根螺杆上的螺棱相互啮合,所述杆芯的横截面为正多边形。
所述杆芯的横截面为等边三角形。
所述杆芯的横截面为正方形。
所述杆芯的横截面为正五边形。
所述杆芯的横截面为正六边形。
所述杆芯的横截面为正八边形。
本实用新型相比现有技术有如下优点:
本实用新型的螺杆杆芯横截面采用正多边形设计,正多边形的棱角可与对应的螺棱一起对原料进行压缩,使原料始终以半环的形式随着螺杆的旋转而前移,混合效果的同时原料受热均匀,并且延长了原料在塑化时间,使塑化效果得到进一步优化。
附图说明
附图1是本实用新型的结构示意图;
附图2是螺杆横截面的结构示意图,其中图2(a)为等边三角形横截面的结构示意图,图2(b)为正方形横截面的结构示意图,图2(c)为正五边形横截面的结构示意图,图2(d)为正六边形横截面的结构示意图,图2(e)为正八边形横截面的结构示意图。
其中:1—杆芯;2—螺棱。
具体实施方式
下面结合附图与实施例对本实用新型作进一步的说明。
如图1-2所示:一种用于双螺杆塑胶挤出机的螺杆,包括杆芯1和杆芯1上的螺棱2,两根螺杆上的螺棱2相互啮合,其中杆芯1的横截面为正多边形。图2所示依次为杆芯1的横截面为等边三角形、正方形、正五边形、正六边形和正八边形。本实用新型的螺杆杆芯1的横截面采用正多边形设计,正多边形的棱角可与对应的螺棱2一起对原料进行压缩,使原料始终以半环的形式随着螺杆的旋转而前移,混合效果的同时原料受热均匀,并且延长了原料在塑化时间,使塑化效果得到进一步优化。
本实用新型未涉及的技术均可通过现有技术加以实现。

Claims (6)

1.一种用于双螺杆塑胶挤出机的螺杆,包括杆芯(1)和杆芯(1)上的螺棱(2),两根螺杆上的螺棱(2)相互啮合,其特征在于所述杆芯(1)的横截面为正多边形。
2.根据权利要求1所述的用于双螺杆塑胶挤出机的螺杆,其特征在于所述杆芯(1)的横截面为等边三角形。
3.根据权利要求1所述的用于双螺杆塑胶挤出机的螺杆,其特征在于所述杆芯(1)的横截面为正方形。
4.根据权利要求1所述的用于双螺杆塑胶挤出机的螺杆,其特征在于所述杆芯(1)的横截面为正五边形。
5.根据权利要求1所述的用于双螺杆塑胶挤出机的螺杆,其特征在于所述杆芯(1)的横截面为正六边形。
6.根据权利要求1所述的用于双螺杆塑胶挤出机的螺杆,其特征在于所述杆芯(1)的横截面为正八边形。
CN2012200250643U 2012-01-19 2012-01-19 一种用于双螺杆塑胶挤出机的螺杆 Expired - Fee Related CN202448337U (zh)

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Granted publication date: 20120926

Termination date: 20190119