CN100563997C - 锥形同向双螺杆挤出机 - Google Patents

锥形同向双螺杆挤出机 Download PDF

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CN100563997C
CN100563997C CNB2005101189153A CN200510118915A CN100563997C CN 100563997 C CN100563997 C CN 100563997C CN B2005101189153 A CNB2005101189153 A CN B2005101189153A CN 200510118915 A CN200510118915 A CN 200510118915A CN 100563997 C CN100563997 C CN 100563997C
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screw
conical
conical double
distributor box
machine barrel
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CN1775505A (zh
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吴汉民
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Wu Han People
Yu Yifei
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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
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

本发明公开了一种锥形同向双螺杆挤出机，它由驱动电机(1)，联轴器(2)，减速分配箱(3)，喂料系统(4)，机筒(5)，锥形双螺杆(6)，排气系统(7)，切粒系统(8)，料斗(9)等所组成，在机筒(5)内设有二根同方向转动的主锥形螺杆(6-1)和副锥形螺杆(6-2)，它们分别与减速分配箱(3)内的主动齿轮(11)和从动齿轮(13)相连接，在二齿轮的下方还设有中间齿轮(12)，从而使锥形双螺杆在工作时保持同方向转动，锥形双螺杆的螺旋线也同方向旋转；这将提高本发明的塑化性能，加之锥形双螺杆良好的挤出性能，使本发明既有良好的挤出力又有良好的塑化性，适用塑料加工中的挤出和造粒，提高了产量，降低能耗，是一种适合各种塑料和橡胶加工的新颖挤出机。

Description

锥形双螺杆挤出机
技术领域
本发明公开了一种在塑料或橡胶加工中应用的适用于挤出、造粒用锥形双螺杆挤出机。
背景技术
众所周知，目前在塑料或橡胶加工中应用的挤出机有平行同向双螺杆挤出机、平行异向双螺杆挤出机和锥形异向双螺杆挤出机；平行同向双螺杆挤出机的优点在于塑化性能好，其缺点是挤出力小、减速分配箱结构复杂且耗电大；而平行异向双螺杆挤出机在塑化性能及挤出力上均不佳；而锥形异向双螺杆挤出机的优点是挤出力大，缺点是塑化性能差，因而实际使用中均不尽人意，看来在挤出机中塑化性能与挤出力成了一对矛盾。我们知道，塑化性能差，将会直接影响到塑化后产品的质量，而挤出力又影响到产量与成本，为此能否设计一种挤出机，集上述优点，而去其缺点，突破现在挤出机的缺陷，更新设备加工能力，显得有十分重要的经济价值和推广应用价值。
发明内容
为克服上述技术的不足，本发明提供一种既具有良好的塑化性能，同时又具有良好挤出力的锥形双螺杆挤出机。
为了实现上述目的，本发明的技术解决方案为：一种锥形双螺杆挤出机，该挤出机包括锥形双螺杆，其设于机筒内，锥形双螺杆由主锥形螺杆和副锥形螺杆组成，主锥形螺杆和副锥形螺杆的螺旋线旋转方向、主锥形螺杆旋转方向、副锥形螺杆的旋转方向均相同，其中该挤出机还包括驱动电机、联轴器、减速分配箱、喂料系统、排气系统，挤出切粒系统，料斗和机架，驱动电机通过联轴器与减速分配箱中的主动齿轮相连接，所述减速分配箱中，主动齿轮与中间齿轮相啮合，中间齿轮与从动齿轮相啮合，在所述减速分配箱与机筒之间设有喂料系统，所述主动齿轮与主锥形螺杆相连接，从动齿轮与副锥形螺杆相连接，所述料斗设于喂料系统上，所述机筒前端与挤出切料系统连接，所述机筒上靠近挤出切料系统处设有排气系统。
采用上述方案后，本发明锥形双螺杆挤出机，由驱动电机带动减速分配箱内的主动齿轮转动，主动齿轮带动锥形双螺杆的主锥形螺杆转动，从动齿轮带动副锥形螺杆转动，由于主锥形螺杆与副锥形螺杆同方向旋转，使从喂料系统进入的加工的塑料在进入机筒后，被加工的塑料在机筒中环绕双锥形螺杆成8字形挤压，增加了塑化时间和密炼性能，从而保证了产品的塑化质量，保持了同向双螺杆挤出机的良好塑化性能；因为采用的螺杆为锥形，所以在减速分配箱内的螺杆末端有足够的空间，可供本发明选用大规格的推力轴承，以能承受锥形螺杆的大挤出力，保持了锥形双螺杆挤出机良好的挤出力性能，它与上述现有挤出机相比，具有以下优点，即兼有现有挤出机的优良性能：挤出力大、产量提高、能耗降低，是适合各种塑料和橡胶加工的新颖挤出机。
发明附图说明
图1为本发明锥形双螺杆挤出机的结构示意图；
图2为本发明锥形双螺杆挤出机的减速分配箱结构示意图；
图3为本发明锥形双螺杆挤出机的螺杆在料筒中横截面示意图；
图4为本发明锥形双螺杆挤出机的螺杆结构示意图。
具体实施方案
本发明结构见附图1所示，它由驱动电机1，联轴器2，减速分配箱3，喂料系统4，机筒5，锥形双螺杆6，排气系统7，挤出切粒系统8，料斗9和机架10所组成，本发明的结构特点是螺杆6由二根锥形螺杆6-1和6-2所组成，锥形螺杆6-1为主螺杆，6-2为副螺杆，见附图4所示，它们在机筒5中的位置见附图3所示；在减速分配箱3中，排列三只锥形齿轮，见附图2所示，驱动电机1通过联轴器2与主动齿轮11相连接，主动齿轮11与中间齿轮12相啮合，中间齿轮12与从动齿轮13相啮合；主动齿轮11与主锥形螺杆6-1相连接，从动齿轮13与副锥形螺杆6-2相连接。当主动齿轮11转动时，带动中间齿轮12，中间齿轮12带动从动齿轮13使主、从齿轮作同向转动，从而使主、副螺杆随主、从齿轮的转动为同方向的转动；锥形双螺杆的螺旋线也为同方向旋转。因此本发明通过锥形双螺杆及三个锥形齿轮的配合，使锥形双螺杆达到同向旋转，既保持了锥形双螺杆的大挤出推力，又保持了平行同向双螺杆的塑化性能，克服了以上二种现有挤出机推力小及塑化差的缺点。提高了产量，节约了能耗，具有挤出、造粒的优良功能和经济性，是适合各种塑料和橡胶加工的新颖挤出机，具有应用和推广作用。

Claims (1)

1、一种锥形双螺杆挤出机，该挤出机包括锥形双螺杆(6)，其设于机筒(5)内，锥形双螺杆(6)由主锥形螺杆(6-1)和副锥形螺杆(6-2)组成，主锥形螺杆(6-1)和副锥形螺杆(6-2)的螺旋线旋转方向、主锥形螺杆(6-1)旋转方向、副锥形螺杆(6-2)的旋转方向均相同，其特征在于：该挤出机还包括驱动电机(1)、联轴器(2)、减速分配箱(3)、喂料系统(4)、排气系统(7)，挤出切粒系统(8)，料斗(9)和机架(10)，驱动电机(1)通过联轴器(2)与减速分配箱(3)中的主动齿轮(11)相连接，所述减速分配箱(3)中，主动齿轮(11)与中间齿轮(12)相啮合，中间齿轮(12)与从动齿轮(13)相啮合，在所述减速分配箱(3)与机筒(5)之间设有喂料系统(4)，所述主动齿轮(11)与主锥形螺杆(6-1)相连接，从动齿轮(13)与副锥形螺杆(6-2)相连接，所述料斗(9)设于喂料系统(4)上，所述机筒(5)前端与挤出切料系统(8)连接，所述机筒(5)上靠近挤出切料系统(8)处设有排气系统(7)。
CNB2005101189153A 2004-12-17 2005-10-26 锥形同向双螺杆挤出机 Ceased CN100563997C (zh)

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CN110435114A (zh) * 2019-08-01 2019-11-12 南通理工学院 一种同向双螺杆结构挤出机

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CN102107516A (zh) * 2010-12-06 2011-06-29 吴汉民 一种双螺杆挤出机
CN102172896B (zh) * 2011-03-14 2012-11-14 开封树杰模具有限公司 单锥度螺杆循环抛光挤出机
CN102205620A (zh) * 2011-04-15 2011-10-05 北京化工大学 差速锥形双螺杆挤出机
CN102601892B (zh) * 2012-03-21 2016-12-14 泗阳宝源塑胶材料有限公司 涤纶色母粒炭黑下料装置
CN103016691B (zh) * 2012-12-04 2016-03-30 长沙联力实业有限公司 一种同向锥形双螺杆挤出机分配齿轮箱
CN105317934A (zh) * 2014-07-31 2016-02-10 舟山市定海通发塑料有限公司 一种用于同向双螺杆挤出机的齿轮错位啮合的分配箱
CN107471594A (zh) * 2017-06-16 2017-12-15 舟山盈科塑料机械有限公司 塑料管材及板材通用锥形同向双螺杆挤出机
CN112760999A (zh) * 2020-12-29 2021-05-07 宁波全泰环保科技有限公司 Tpu复合面料的生产线及tpu复合面料的制备方法

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CN110435114A (zh) * 2019-08-01 2019-11-12 南通理工学院 一种同向双螺杆结构挤出机

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