CN202826364U - 挤出机螺杆结构 - Google Patents

挤出机螺杆结构 Download PDF

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Publication number
CN202826364U
CN202826364U CN2012205344717U CN201220534471U CN202826364U CN 202826364 U CN202826364 U CN 202826364U CN 2012205344717 U CN2012205344717 U CN 2012205344717U CN 201220534471 U CN201220534471 U CN 201220534471U CN 202826364 U CN202826364 U CN 202826364U
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screw rod
section
extruder
rod structure
screw
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Expired - Fee Related
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CN2012205344717U
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English (en)
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钱文明
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Wuxi Baishun Machinery Factory
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Wuxi Baishun Machinery Factory
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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
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/67Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
    • 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
    • B29C48/565Screws having projections other than the thread, e.g. pins

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

Abstract

本实用新型提供一种挤出机螺杆结构,螺杆结构模口端开始依次分为六段:模口段、均化段、输送段、压缩段、挤压段、加料段,该螺杆为分体结构,每段之间采用螺杆连接或采用键连接或采用焊接连接,每段螺杆的中轴线为一条直线,且穿过挤出机机筒同心。本实用新型涉及的这种挤出机螺杆结构,为分体结构,每段结构的结构形式不同,适用于挤压过程各个段的不同要求,提升产品质量,且结构形式简单,制造简单,安装也方便。

Description

挤出机螺杆结构
技术领域
本实用新型涉及一种挤出机螺杆结构。 
背景技术
注塑螺杆按其对塑料的适应性,可分为通用螺杆和特殊螺杆,通用螺杆又称常规螺杆,可加工大部分具有低、中黏度的热塑性塑料,结晶型和非结晶型的民用塑料和工程塑料,是螺杆最基本的形式,与其相应的还有特殊螺杆,是用来加工用普通螺杆难以加工的塑料;按螺杆结构及其几何形状特征,可分为常规螺杆和新型螺杆,常规螺杆又称为三段式螺杆,是螺杆的基本形式,新型螺杆形式则有很多种,如分离型螺杆、分流型螺杆、波状螺杆、无计量段螺杆等。     常规螺杆其螺纹有效长度通常分为加料段(输送段)、压缩段(塑化段)、计量段(均化段),根据塑料性质不同,可分为渐变型、突变型和通用型螺杆。 ① 渐变型螺杆:压缩段较长,塑化时能量转换缓和,多用于PVC等热稳定性差的塑料。 ② 突变型螺杆:压缩段较短,塑化时能量转换较剧烈,多用于聚烯烃、PA等结晶型塑料。 ③ 通用型螺杆:适应性比较强的通用型螺杆,可适应多种塑料的加工,避免更换螺杆频繁,有利于提高生产效率。 
实用新型内容
    为了克服以上问题,本实用新型提供一种挤出机螺杆结构,该螺杆结构在各个段的结构形式不同,其加工方式可采用分段式加工,然后采用螺纹连接或键连接。 
为解决以上技术问题,本实用新型提供的技术方案如下:一种挤出机螺杆结构,所述螺杆结构模口端开始依次分为六段:模口段、均化段、输送段、压缩段、挤压段、加料段,该螺杆为分体结构,每段之间采用螺杆连接或采用键连接或采用焊接连接,每段螺杆的中轴线为一条直线,且穿过挤出机机筒同心。 
进一步的,所述模口段结构为一圆锥形结构。 
进一步的,所述均化段螺杆的表面具有凸块,凸块的截面为梯形。 
进一步的,所述输送段螺杆表面为螺旋形螺棱。 
进一步的,所述压缩段螺杆表面的具有凸块。 
进一步的,所述挤压段螺杆表面的螺棱结构为螺旋形。 
进一步的,所述加料段螺杆的螺棱为环形凸起,该环形凸起与螺杆同心。 
本实用新型涉及的这种挤出机螺杆结构,为分体结构,每段结构的结构形式不同,适用于挤压过程各个段的不同要求,提升产品质量。 
附图说明
图1是本实用新型挤出机螺杆结构整体结构示意图; 
1-模口段;2-均化段;3-输送段;4-压缩段;5-挤压段;6-加料段。
具体实施方式
如图1所示,螺杆结构模口端开始依次分为六段:模口段1、均化段2、输送段3、压缩段4、挤压段5、加料段6,该螺杆为分体结构,每段之间采用螺杆连接或采用键连接或采用焊接连接,每段螺杆的中轴线为一条直线,且穿过挤出机机筒同心。 
模口段1结构为一圆锥形结构。 
均化段2螺杆的表面具有凸块,凸块的截面为梯形。 
输送段3螺杆表面为螺旋形螺棱。 
压缩段4螺杆表面的具有凸块。 
挤压段5螺杆表面的螺棱结构为螺旋形。 
加料段6螺杆的螺棱为环形凸起,该环形凸起与螺杆同心。 
本实用新型提供的这种挤出机螺杆结构,结构形式简单,制造简单,安装方便。 
本实用新型所述的具体实施方式并不构成对本申请范围的限制,凡是在本实用新型构思的精神和原则之内,本领域的专业人员能够作出的任何修改、等同替换和改进等均应包含在本实用新型的保护范围之内。 

Claims (7)

1.一种挤出机螺杆结构,其特征在于,所述螺杆结构模口端开始依次分为六段:模口段、均化段、输送段、压缩段、挤压段、加料段,该螺杆为分体结构,每段之间采用螺杆连接或采用键连接或采用焊接连接,每段螺杆的中轴线为一条直线,且穿过挤出机机筒同心。
2.根据权利要求1所述的挤出机螺杆结构,其特征在于,所述模口段结构为一圆锥形结构。
3.根据权利要求1所述的挤出机螺杆结构,其特征在于,所述均化段螺杆的表面具有凸块,凸块的截面为梯形。
4.根据权利要求1所述的挤出机螺杆结构,其特征在于,所述输送段螺杆表面为螺旋形螺棱。
5.根据权利要求1所述的挤出机螺杆结构,其特征在于,所述压缩段螺杆表面的具有凸块。
6.根据权利要求1所述的挤出机螺杆结构,其特征在于,所述挤压段螺杆表面的螺棱结构为螺旋形。
7.根据权利要求1所述的挤出机螺杆结构,其特征在于,所述加料段螺杆的螺棱为环形凸起,该环形凸起与螺杆同心。
CN2012205344717U 2012-10-19 2012-10-19 挤出机螺杆结构 Expired - Fee Related CN202826364U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896760A (zh) * 2012-10-19 2013-01-30 无锡市百顺机械厂 挤出机螺杆结构
CN104108164A (zh) * 2013-04-17 2014-10-22 无锡市长嵘塑料机械有限公司 一种新型两段式注塑机螺杆

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896760A (zh) * 2012-10-19 2013-01-30 无锡市百顺机械厂 挤出机螺杆结构
CN104108164A (zh) * 2013-04-17 2014-10-22 无锡市长嵘塑料机械有限公司 一种新型两段式注塑机螺杆

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Granted publication date: 20130327

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