CN2512577Y - 一种非圆塑料挤出螺杆 - Google Patents

一种非圆塑料挤出螺杆 Download PDF

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Publication number
CN2512577Y
CN2512577Y CN01258204U CN01258204U CN2512577Y CN 2512577 Y CN2512577 Y CN 2512577Y CN 01258204 U CN01258204 U CN 01258204U CN 01258204 U CN01258204 U CN 01258204U CN 2512577 Y CN2512577 Y CN 2512577Y
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China
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screw rod
section
plastics
mixing section
mixing
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Expired - Lifetime
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CN01258204U
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Inventor
黄虹
林梓生
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Guangdong Jinming Machinery Co Ltd
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MA ZHEXIN
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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk

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

Abstract

本实用新型涉及一种对塑料具有混炼功能的挤出螺杆,其主要特征是:在进料段(1)之后存在非圆状混炼段(2),其对某些塑料,例如:高阻隔塑料,PA、EVOH的塑化有良好的混炼作用,该螺杆广泛适用于各种塑料的混炼挤出。

Description

一种非圆塑料挤出螺杆
所属技术领域
本实用新型涉及一种能产生混炼功能的非圆状塑料挤出螺杆。
背景技术
以往的塑料挤出螺杆其混炼功能的实现是通过屏障段或者销钉炼段来实现的，存在着对某些塑料的塑化效果不理想的缺点，例如：PA、EVOH。
技术方案
为了有效地提高对某些塑料，例如高阻隔塑料的塑化效果(如：PA、EVOH)，本实用新型提供一种塑料挤出螺杆，其特征在于：在进料段(1)之后螺杆存在非圆状混炼段(2)。非圆状混炼段(2)的横截面为非圆状，例如：椭圆状、偏心圆状、圆角方形状、圆角棱形状等等。塑料在经过非圆状混炼段(2)时，由于螺杆的非圆状，而造成塑料在螺杆的旋转下受到压力在大与小之间交替变化的挤压，令塑料被有效地混炼，从而提高了其在挤出时的塑化性能，尤其是对PA、EVOH等高阻隔塑料。
本实用新型可选择以下结构：螺杆由进料段(1)、非圆状混炼段(2)、计量段(3)顺序连接而成。原料经进料段(1)被理顺，再经非圆状混炼段(2)被混炼，最后经计量段(3)完成挤出工序。
根据不同性质的塑料的不同要求，本实用新型的结构还可以作如下的变化：在螺杆还连接有屏障段(4)或销钉混炼段(5)。由于不同的混炼段结构对不同的塑料有不同的适应性，因此，将上述各混炼段进行针对性组合能对不同的塑料产生针对性的品质优化效果。
附图说明
图1、本实用新型的一种塑料挤出螺杆形状、结构示意图。
图2、本实用新型的另一种塑料挤出螺杆形状、结构示意图。
实施方案
实施例一：见图1。
螺杆由进料段(1)、非圆状混炼段(2)、计量段(3)顺序连接而成。螺杆由进料段(1)、与计量段(3)为传统结构，非圆状混炼段(2)的横截面是椭圆形，其横向内径为44mm，纵向内径为46mm。
实施例二：见图2。
在螺杆的非圆状混炼段(2)与计量段(3)之间接有屏障段(4)，在屏障段(4)之后接有销钉混炼段(5)。其余的与实施例一相同。

Claims (3)

1、一种塑料挤出螺杆，其特征在于：在进料段(1)之后存在非圆状混炼段(2)。
2、根据权利要求1所述的螺杆，其特征在于：螺杆由进料段(1)、非圆状混炼段(2)、计量段(3)顺序连接而成。
3、根据权利要求1或2所述的螺杆，其特征在于：在螺杆还连接有屏障段(4)或销钉混炼段(5)。
CN01258204U 2001-11-26 2001-11-26 一种非圆塑料挤出螺杆 Expired - Lifetime CN2512577Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN01258204U CN2512577Y (zh) 2001-11-26 2001-11-26 一种非圆塑料挤出螺杆

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Application Number Priority Date Filing Date Title
CN01258204U CN2512577Y (zh) 2001-11-26 2001-11-26 一种非圆塑料挤出螺杆

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CN2512577Y true CN2512577Y (zh) 2002-09-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102534819A (zh) * 2012-03-15 2012-07-04 北京中丽制机工程技术有限公司 一种挤压机螺杆

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102534819A (zh) * 2012-03-15 2012-07-04 北京中丽制机工程技术有限公司 一种挤压机螺杆

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: GUANGDONG JINMING MACHINERY CO., LTD.

Free format text: FORMER OWNER: MA ZHENXIN

Effective date: 20101116

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 515064 ZONE 5A5, JINYUAN INDUSTRIAL ZONE, CHAOSHAN ROAD, SHANTOU CITY, GUANGDONG PROVINCE GUANGDONG JINMING PLASTIC EQUIPMENT CO., LTD. TO: 515098 TEXTILE INDUSTRIAL PARK, HAOJIANG DISTRICT, SHANTOU CITY, GUANGDONG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20101116

Address after: Haojiang District Textile Industrial Park, 515098 Guangdong city of Shantou Province

Patentee after: Guangdong Jinming Machinery Co., Ltd.

Address before: 515064 Guangdong city of Shantou province Chaoshan road Jinyuan Industrial Zone area 5A5 Guangdong Jinming plastics equipment Co. Ltd.

Patentee before: Ma Zhenxin

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20111126

Granted publication date: 20020925