CN202399502U - 塑料挤出机固体计量装置 - Google Patents

塑料挤出机固体计量装置 Download PDF

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Publication number
CN202399502U
CN202399502U CN2011204137109U CN201120413710U CN202399502U CN 202399502 U CN202399502 U CN 202399502U CN 2011204137109 U CN2011204137109 U CN 2011204137109U CN 201120413710 U CN201120413710 U CN 201120413710U CN 202399502 U CN202399502 U CN 202399502U
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screw
metering
solid
metering device
plastic extruder
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CN2011204137109U
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曹健礼
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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
    • B29C48/397—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 a single screw
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • 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
    • B29C48/501—Extruder feed section
    • 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
    • B29C48/68—Barrels or cylinders
    • B29C48/681—Barrels or cylinders for single 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
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
    • 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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/688—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having threads

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

Abstract

塑料挤出机固体计量装置，它涉及塑料挤出设备技术领域。它包含料筒(1)、螺杆(2)和进料系统(3)，螺杆(2)同轴设置在料筒(1)的内部，料筒(1)输送段内壁均匀设置有相对于螺杆(2)螺纹旋向相反的螺纹槽(4)。它将现有的熔体计量方式改为固体计量方式，原来的计量段改为其他用途，不仅能够提高计量的精确度，而且能够减少树脂熔体剪切，减少热降解，提高产品品质，可以部分代替双螺杆挤出机，降低成本。

Description

塑料挤出机固体计量装置
技术领域：
本实用新型涉及塑料挤出设备技术领域，具体涉及单螺杆塑料挤出机固体计量装置。 
背景技术：
单螺杆挤出机作为一种常见的挤出机设备，用于塑料加工行业，它一般在有效长度上分为三段，靠进料口的螺纹开始叫输送段，物料在此处要求不能塑化，但要预热、受压挤实，过去老挤出理论认为此处物料是松散体，后来通过证明此处物料实际是固体塞，就是说这里物料受挤压后是一固体象塞子一样，因此只要完成输送任务就是它的功能了。第三段是计量段，此处物料保持塑化温度，可以象计量泵那样定量输送熔体物料，以供给机头。 
目前的塑料挤出机的计量方式大都采用熔体挤出计量，但目前的塑料挤出机螺杆易磨损，运行不稳定，导致挤出不稳定，大大降低了计量的准确性，严重影响了产品的品质。有些生产商为了保证产品的品质，选用双螺杆挤出机，但双螺杆挤出机结构复杂，造价昂贵，大大提高了生产商的生产成本。 
实用新型内容：
本实用新型的目的是提供塑料挤出机固体计量装置，它将现有的熔体计量方式改为固体计量方式，原来的计量段改为其他用途，不仅能够提高计量的精确度，而且能够减少树脂熔体剪切，减少热降解，提高产品品质，可以部分代替双螺杆挤出机，降低成本。 
为了解决背景技术所存在的问题，本实用新型是采用以下技术方案：它包含料筒1、螺杆2和进料系统3，螺杆2同轴设置在料筒1的内部，料筒1输送段内壁均匀设置有相对于螺杆2螺纹旋向相反的螺纹槽4。 
本实用新型的原理为：由于螺纹槽4与螺杆螺纹的螺旋方向相反，在送料过程中使得挤出的物料量均匀准确。 
本实用新型具有以下有益效果： 
1、固体计量相对于普通单螺杆挤出机挤出的熔体计量； 
2、计量精确，挤出稳定； 
3、可以部分代替目前昂贵的双螺杆挤出机； 
4、由于计量精确，可减少树脂熔体剪切，提高产品的品质； 
5、因为减少了熔体剪切，所以减少了塑料自产热，降低能耗，减少树脂热降解； 
6、具有固体计量功能，传统挤出机自带的计量段可作为其他功能使用。 
附图说明：
图1为本实用新型的结构示意图。 
具体实施方式：
参照图1，本具体实施方式采用以下技术方案：它包含料筒1、螺杆2和进料系统3，螺杆2同轴设置在料筒1的内部，料筒1输送段内壁均匀设置有相对于螺杆2螺纹旋向相反的螺纹槽4。 
本具体实施方式的原理为：由于螺纹槽4与螺纹的螺旋方向相反，在送料过程中使得挤出的物料量均匀准确。 
本具体实施方式将现有的熔体计量方式改为固体计量方式，原来 的计量段改为其他用途，不仅能够提高计量的精确度，而且能够减少树脂熔体剪切，减少热降解，提高产品品质，可以部分代替双螺杆挤出机，降低成本。 
本实用新型提供了一种塑料挤出机固体计量装置的思路及方法，具体实现该技术方案的方法和途径很多，以上所述仅是本实用新型的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本实用新型的保护范围。本实施例中未明确的各组成部分均可用现有技术加以实现。 

Claims (1)

1.塑料挤出机固体计量装置，它包含料筒(1)、螺杆(2)和进料系统(3)，螺杆(2)同轴设置在料筒(1)的内部，其特征在于料筒(1)输送段内壁均匀设置有相对于螺杆(2)螺纹旋向相反的螺纹槽(4)。 
CN2011204137109U 2011-10-27 2011-10-27 塑料挤出机固体计量装置 Expired - Fee Related CN202399502U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104097313A (zh) * 2014-07-09 2014-10-15 沈阳化工大学 一种具有螺纹并旋转的单螺杆挤出机机筒
WO2016112777A1 (zh) * 2015-01-14 2016-07-21 李建钢 一种挤出装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104097313A (zh) * 2014-07-09 2014-10-15 沈阳化工大学 一种具有螺纹并旋转的单螺杆挤出机机筒
WO2016112777A1 (zh) * 2015-01-14 2016-07-21 李建钢 一种挤出装置

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120829

Termination date: 20201027

CF01 Termination of patent right due to non-payment of annual fee