CN203527853U - 螺杆 - Google Patents

螺杆 Download PDF

Info

Publication number
CN203527853U
CN203527853U CN201320634346.8U CN201320634346U CN203527853U CN 203527853 U CN203527853 U CN 203527853U CN 201320634346 U CN201320634346 U CN 201320634346U CN 203527853 U CN203527853 U CN 203527853U
Authority
CN
China
Prior art keywords
screw
section
screw rod
spiral shell
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320634346.8U
Other languages
English (en)
Inventor
周飚荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNSHAN NEOTEK PLASTIC MACHINERY CO Ltd
Original Assignee
KUNSHAN NEOTEK PLASTIC MACHINERY CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KUNSHAN NEOTEK PLASTIC MACHINERY CO Ltd filed Critical KUNSHAN NEOTEK PLASTIC MACHINERY CO Ltd
Priority to CN201320634346.8U priority Critical patent/CN203527853U/zh
Application granted granted Critical
Publication of CN203527853U publication Critical patent/CN203527853U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
    • 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
    • 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
    • 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
    • B29C48/565—Screws having projections other than the thread, e.g. pins

Landscapes

  • 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螺杆，属于单螺杆挤出机领域，包括依次顺序连接的加料段（A）、塑化段（B）、挤出段（C），所述加料段（A）、塑化段（B）和挤出段（C）上均攻有螺纹，所述螺杆为φ75单螺杆；所述螺纹的螺距一大一小连续交替，所述螺纹的螺峰一高一低连续交替；所述塑化段（B）的末端增加有混炼螺棱段（D）。本实用新型的螺杆攻有螺距一大一小连续交替、螺峰一高一低连续交替的螺纹，塑化段（B）的末端增加有混炼螺棱段（D），因此具有原料塑化完全、产品组织成分均匀、产品内应力小，且生产效率高等优点。

Description

螺杆
技术领域
本实用新型涉及单螺杆挤出机领域，尤其是涉及一种φ75螺杆。 
背景技术
螺杆作为挤出机挤出系统的重要零件之一，是挤出机输送固体塑料、塑化塑料和熔体的部件，螺杆设计的好坏将直接影响塑料制品的质量及产量，对挤出机的性能起着决定性的作用。 
目前大多数使用的φ75单螺杆的长径比为33:1，存在在螺杆中流动的部分原料融化不彻底，塑化不完全的现象，导致产品的组织成分不均匀，出现内应力；并且伴随有产量低的缺点，一般只有400kg/h。 
实用新型内容
本实用新型所要解决的技术问题是：提供一种原料塑化完全、产品组织成分均匀、产品内应力小，且生产效率高的螺杆。 
为解决上述技术问题，本实用新型的技术方案是：提供一种螺杆，包括依次顺序连接的加料段、塑化段、挤出段，所述加料段、塑化段和挤出段上均攻有螺纹，所述螺杆为φ75单螺杆；所述螺纹的螺距一大一小连续交替，所述螺纹的螺峰一高一低连续交替；所述塑化段的末端增加有混炼螺棱段。 
进一步地，所述螺杆的长径比为36:1。 
进一步地，所述混炼螺棱段的长度为262.5mm。 
进一步地，所述螺纹的大螺距与小螺距相差6mm。 
进一步地，所述加料段螺纹起始位置的内角半径为3mm。 
采用了上述技术方案，本实用新型的有益效果为：与现有技术相比，本实 用新型提供的螺杆为φ75、长径比为36:1的单螺杆，螺杆塑化段的末端增加了混炼螺棱段。原料在流过塑化段，即将到达挤出段时可能存在部分材料仍未完全融化的情况，由于增加了混炼螺棱段，从而保证了未充分融化的固态材料在混炼螺棱段得到完全融化，确保了原料的塑化效果和产品组织的均匀性，并降低了产品的内应力；另外，螺杆上螺纹的螺距一大一小交替、螺峰一高一低交替，增强了原料在螺杆中的流动性，提高了生产效率。本实用新型的螺杆具有原料塑化完全、产品组织成分均匀、产品内应力小，且生产效率高等优点。 
附图说明
图1是本实用新型实施例的结构示意图； 
其中：A-加料段；B-塑化段；C-挤出段；D-混炼螺棱段；L1-大螺距；L2-小螺距；R-内角半径。 
具体实施方式
下面结合附图和实施例对本实用新型进一步说明。 
如图1所示，本实用新型优选的螺杆，包括依次顺序连接的加料段A、塑化段B、挤出段C，所述加料段A、塑化段B和挤出段C上均攻有螺纹，所述螺杆为φ75单螺杆；所述螺纹的螺距一大一小连续交替，所述螺纹的螺峰一高一低连续交替；所述塑化段B的末端增加有混炼螺棱段D。 
在本实用新型的优选实施例中，所述螺杆的长径比为36:1。 
在本实用新型的优选实施例中，所述混炼螺棱段D的长度为262.5mm。保证了未充分融化的固态材料在混炼螺棱段得到完全融化，改善了原料的塑化效果、产品组织的均匀性、产品的内应力，也确保了螺杆合理的尺寸。 
在本实用新型的优选实施例中，所述螺纹的大螺距L1与小螺距L2相差6mm。 螺距一大一小连续交替、螺峰一高一低连续交替的螺纹可以增加原料在螺杆中的流动速度，提高了工作效率。 
在本实用新型的优选实施例中，所述加料段A螺纹起始位置的内角半径R为3mm，降低了应力集中。 
工作过程：加料段A接受供料系统供给的物料，一般是PE和PP材料，然后将其输送给塑化段B；塑化段B对物料进行压实，熔融塑化后经螺纹推给混炼螺棱段D；物料在混炼螺棱段D中得到进一步塑化，然后在等压、等温的条件下，螺杆把均匀塑化的熔融料等量地推向挤出段C，最后从挤出段C推入成型模具。 
如上所述，本实用新型提供的螺杆为φ75、长径比为36:1的单螺杆，螺杆塑化段的末端增加了混炼螺棱段。原料在流过塑化段，即将到达挤出段时可能存在部分材料仍未完全融化的情况，由于增加了混炼螺棱段，从而保证了未充分融化的固态材料在混炼螺棱段得到完全融化，确保了原料的塑化效果和产品组织的均匀性，并降低了产品的内应力；另外，螺杆上螺纹的螺距一大一小交替、螺峰一高一低交替，增强了原料在螺杆中的流动性，提高了生产效率，产量可高达600kg/h。本实用新型的螺杆具有原料塑化完全、产品组织成分均匀、产品内应力小，且生产效率高等优点。 
本实用新型不局限于上述具体的实施方式，本领域的普通技术人员从上述构思出发，不经过创造性的劳动，所作出的种种变换，均落在本实用新型的保护范围之内。 

Claims (5)

1.一种螺杆，包括依次顺序连接的加料段（A）、塑化段（B）、挤出段（C），所述加料段（A）、塑化段（B）和挤出段（C）上均攻有螺纹，其特征在于：所述螺杆为φ75单螺杆；所述螺纹的螺距一大一小连续交替，所述螺纹的螺峰一高一低连续交替；所述塑化段（B）的末端增加有混炼螺棱段（D）。
2.根据权利要求1所述的螺杆，其特征在于：所述螺杆的长径比为36:1。
3.根据权利要求2所述的螺杆，其特征在于：所述混炼螺棱段（D）的长度为262.5mm。
4.根据权利要求1至3中任一项所述的螺杆，其特征在于：所述螺纹的大螺距（L1）与小螺距（L2）相差6mm。
5.根据权利要求1至3中任一项所述的螺杆，其特征在于：所述加料段（A）螺纹起始位置的内角半径（R）为3mm。
CN201320634346.8U 2013-10-14 2013-10-14 螺杆 Expired - Fee Related CN203527853U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320634346.8U CN203527853U (zh) 2013-10-14 2013-10-14 螺杆

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320634346.8U CN203527853U (zh) 2013-10-14 2013-10-14 螺杆

Publications (1)

Publication Number Publication Date
CN203527853U true CN203527853U (zh) 2014-04-09

Family

ID=50414110

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320634346.8U Expired - Fee Related CN203527853U (zh) 2013-10-14 2013-10-14 螺杆

Country Status (1)

Country Link
CN (1) CN203527853U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109866399A (zh) * 2019-04-01 2019-06-11 舟山德玛吉实业有限公司 激光熔覆双螺杆

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109866399A (zh) * 2019-04-01 2019-06-11 舟山德玛吉实业有限公司 激光熔覆双螺杆
CN109866399B (zh) * 2019-04-01 2021-04-13 舟山德玛吉实业有限公司 激光熔覆双螺杆

Similar Documents

Publication Publication Date Title
CN103101180B (zh) 单螺杆挤出机的螺杆
CN104290309A (zh) 一种单螺杆挤出机的挤出螺杆
CN203527853U (zh) 螺杆
CN101700692A (zh) 一种异化型双锥螺杆挤出成型装置
CN104589618A (zh) 电线电缆挤出机专用两段bm式螺杆
CN101954732A (zh) 具有平行螺杆头段的锥形单螺杆挤出机
CN202623253U (zh) 一种塑料挤出机
CN203141815U (zh) 单螺杆挤出机的螺杆
CN202623243U (zh) 圆锥形螺杆塑料挤出机
CN204749339U (zh) 一种蜂窝式催化剂的组合螺杆挤压进料装置
CN204526092U (zh) 电线电缆挤出机专用两段bm式螺杆
CN202826364U (zh) 挤出机螺杆结构
CN202623229U (zh) 一种具有进料螺杆的塑料挤出机
CN202623230U (zh) 一种具有加压柱塞的塑料挤出机
CN102837413A (zh) 用于加工pvc热收缩薄膜的机组
CN202399502U (zh) 塑料挤出机固体计量装置
CN202491414U (zh) 一种锥双螺杆
CN201158137Y (zh) 一种双螺杆塑料挤出机
CN204451111U (zh) 一种用于注塑机的挤注复合注塑装置
CN205705213U (zh) 带振动芯轴的空心单螺杆挤出机
CN203344294U (zh) 一种双螺杆变单螺杆的螺旋挤出成型装置
CN204340164U (zh) 塑料挤出机挤料装置
CN202491411U (zh) 一种螺杆
CN204869567U (zh) 一种pvc粉直接挤出电线一体机
CN202037745U (zh) 双螺杆密炼排料机组

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140409

Termination date: 20151014

EXPY Termination of patent right or utility model