CN203185624U - 挤压机的多螺杆结构 - Google Patents

挤压机的多螺杆结构 Download PDF

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Publication number
CN203185624U
CN203185624U CN2012205494396U CN201220549439U CN203185624U CN 203185624 U CN203185624 U CN 203185624U CN 2012205494396 U CN2012205494396 U CN 2012205494396U CN 201220549439 U CN201220549439 U CN 201220549439U CN 203185624 U CN203185624 U CN 203185624U
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China
Prior art keywords
screws
screw rod
screw
screw structure
utility
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Expired - Fee Related
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CN2012205494396U
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English (en)
Inventor
吴建国
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Wuxi Tianhui Plastic Machinery Co Ltd
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Wuxi Tianhui Plastic Machinery Co Ltd
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Priority to CN2012205494396U priority Critical patent/CN203185624U/zh
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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
    • B29C48/395—Means 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
    • B29C48/40—Means 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
    • B29C48/435—Sub-screws
    • 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
    • B29C48/395—Means 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
    • B29C48/40—Means 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
    • B29C48/405—Intermeshing co-rotating screws
    • 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
    • B29C48/395—Means 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
    • B29C48/40—Means 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
    • B29C48/425—Means 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 using three or more screws

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

Abstract

本实用新型提供挤压机的多螺杆结构，所述螺杆具有多根，同向旋转，该同向旋转的多根螺杆的动力装置由一台或与螺杆数量相同的电动机构成；机筒的截面形状类似于多根螺杆啮合后的外形，每个螺杆轴线在同一水平面上，所述多螺杆结构具有三根螺杆，中间螺杆的螺杆直径大于两侧螺杆的直径，两侧螺杆的直径长度相等。本实用新型涉及的这种挤压机的多螺杆结构，结构简单，方便制造与安装，针对于多根螺杆的设计，其机筒的设计也应具有相应的结构形状，随着物料的挤出，机筒内腔的逐渐缩小，使挤出压力增大，因此很容易在出料段建立起所需的压力，提高产品质量，提高挤出效率。

Description

挤压机的多螺杆结构
技术领域
本实用新型涉及一种挤压机的多螺杆结构。
技术背景
塑料挤出机的螺杆结构形式较多，分为单螺杆、双螺杆和多螺杆，而双螺杆的挤出机在市场占有较大的比重，为适应螺杆在挤出各段的特点，设计其在各段的不同结构形式，以提高产品质量和提高生产效率。
实用新型内容
为实现以上所述，本实用新型提供挤压机的多螺杆结构，所述螺杆具有多根，同向旋转，该同向旋转的多根螺杆的动力装置由一台或与螺杆数量相同的电动机构成；所述机筒的截面形状类似于多根螺杆啮合后的外形；每个螺杆轴线在同一水平面上。
进一步地，所述多螺杆结构具有三根螺杆，中间螺杆的螺杆直径大于两侧螺杆的直径，两侧螺杆的直径长度相等。 
进一步地，所述机筒的截面形状类似椭圆形。
    本实用新型涉及的这种挤压机的多螺杆结构，结构简单，方便制造与安装，针对于多根螺杆的设计，其机筒的设计也应具有相应的结构形状，随着物料的挤出，机筒内腔的逐渐缩小，使挤出压力增大，因此很容易在出料段建立起所需的压力，提高产品质量，提高挤出效率。
附图说明
图1是本实用新型挤压机的多螺杆结构示意图；
1-第一螺杆；2-第二螺杆；3-第三螺杆；4-机筒。
具体实施方式
如图1所示，螺杆具有三根，第一螺杆1；第二螺杆2和第三螺杆3，同向旋转，三根螺杆的动力装置由一台电动机构成或者两台或三台电动机构成；若小于三台电动机，须设有齿轮传动装置，机筒4的截面形状类似于多根螺杆啮合后的外形，每个螺杆轴线在同一水平面上。
螺杆的螺棱为圆环形。
机筒4的截面形状类似为椭圆形。
该挤压机的多螺杆结构，能够有效的对物料剪切挤压，进而带来更好的熔融状态，对于一些要求较高的产品，该多螺杆结构能够带来产品质量的保证和效率的提高。
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 (2)

1.一种挤压机的多螺杆结构，包括螺杆和机筒，其特征在于，所述螺杆同向旋转，该同向旋转的多根螺杆的动力装置由一台或与螺杆数量相同的电动机构成；每个螺杆轴线在同一水平面上。
2.根据权利要求1所述的挤压机的多螺杆结构，其特征在于，所述机筒的截面形状为椭圆形。
3、根据权利要求1所述的挤压机的多螺杆结构，其特征在于，所述螺杆的数量为三根，中间螺杆的螺杆直径大于两侧螺杆的直径，两侧螺杆的直径长度相等。
CN2012205494396U 2012-10-25 2012-10-25 挤压机的多螺杆结构 Expired - Fee Related CN203185624U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107139425A (zh) * 2017-07-11 2017-09-08 广东轻工职业技术学院 强拉伸同向差速多螺杆挤出机及其加工方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107139425A (zh) * 2017-07-11 2017-09-08 广东轻工职业技术学院 强拉伸同向差速多螺杆挤出机及其加工方法

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Granted publication date: 20130911

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