CN201979686U - 超锥形双螺杆挤出设备 - Google Patents

超锥形双螺杆挤出设备 Download PDF

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CN201979686U
CN201979686U CN2010206801231U CN201020680123U CN201979686U CN 201979686 U CN201979686 U CN 201979686U CN 2010206801231 U CN2010206801231 U CN 2010206801231U CN 201020680123 U CN201020680123 U CN 201020680123U CN 201979686 U CN201979686 U CN 201979686U
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screw
machine barrel
taper
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twin
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王飞跃
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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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • 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
    • B29C48/425—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

本实用新型涉及超锥形双螺杆挤出设备，它包括挤出模具1、机筒2、锥形螺杆3、排气口4、加热圈5、喂料系统6、分配齿轮箱7、减速传动箱8、联轴器9、驱动电机10、机架11，本实用新型增大了锥形螺杆的有效长径比，因此使得本实用新型的塑化性能和产量大大提高，可将各种热塑性塑料、热固性塑料和改性塑料从粉料状态直接挤制成型。

Description

超锥形双螺杆挤出设备
技术领域
本实用新型涉及一种双螺杆塑料挤出设备，特别是超锥形双螺杆挤出设备。
背景技术
目前，由于锥形双螺杆挤出机具有挤出力大、剪切力大、适用于粉料直接成型等优势特点，所以被广泛应用在管材、异型材、板材、片材等塑料制品的挤出领域。但是由于受到加工工艺的影响，所以目前锥形双螺杆挤出机的有效长径比介于1～22∶1之间，因此导致了现有锥形双螺杆挤出机的混炼塑化性能相对较差，产量较低，能耗较大。因此，高速、高效、节能将是塑料挤出机不断改进的主要方向。
发明内容
为了解决目前锥形双螺杆挤出机存在塑化性能差、产量低等问题，本实用新型提供了一种大长径比(介于24～75∶1之间)的超锥形双螺杆挤出设备。
本实用新型的超锥形双螺杆挤出设备包括：挤出模具、机筒、锥形螺杆、排气口、加热圈、喂料系统、分配齿轮箱、减速传动箱、联轴器、驱动电机、机架，所述每根锥形螺杆的有效长径比为24～75∶1。
本实用新型工作时，驱动电机通过联轴器连接到减速传动箱，减速传动箱连接分配齿轮箱中的主动齿轮，通过分配齿轮箱中的主动齿轮带动从动齿轮，从而使与主动齿轮和从动齿轮连接的两根锥形螺杆在机筒内异向旋转；或通过分配齿轮箱中的主动齿轮带动中间齿轮，中间齿轮再带动从动齿轮，从而使与主动齿轮和从动齿轮连接的两根锥形螺杆在机筒内同向旋转。两根锥形螺杆在机筒内异向或同向旋转时，将由喂料系统输送的原料熔融、塑化、混炼、排气，最后通过挤出模具挤出成型。
本实用新型的有益效果是：将每根锥形螺杆的有效长径比由最初介于1～22∶1之间加大到24～75∶1后，保证了物料的稳定挤出和充分塑化，大大提高了制品的质量和密度。同时由于长径比的增大，也保证了锥形螺杆在提高转速后不会被扭断，因此使机器产量大大提高，单位产量的能耗也大大降低。所以本实用新型具备了塑化性能好、产量高、能耗低等众多优点，是一种适用于各种热塑性塑料、热固性塑料和改性塑料挤出成型的新型塑料挤出设备。
附图说明
下面结合附图对本实用新型作进一步的说明。
附图1为本实用新型的结构示意图。
附图2为本实用新型实施例一的异向旋转锥形螺杆结构示意图。
附图3为本实用新型实施例二的同向旋转锥形螺杆结构示意图。
附图4为本实用新型实施例二的分配箱齿轮结构示意图。
具体实施方式
实施例一
如图1～2所示，本实施例的超锥形双螺杆挤出设备包括：挤出模具1、机筒2、锥形螺杆3、排气口4、加热圈5、喂料系统6、分配齿轮箱7、减速传动箱8、联轴器9、驱动电机10、机架11，两根锥形螺杆3-1和3-2在机筒2内的旋转方向为异向旋转。
驱动电机10通过联轴器9连接到减速传动箱8，减速传动箱8连接分配齿轮箱7中的主动齿轮(图中未标出)，主动齿轮和从动齿轮(图中未标出)分别与机筒2内两根锥形螺杆3-1和3-2相连接，通过分配齿轮箱7中的主动齿轮带动从动齿轮，带动两根锥形螺杆3-1和3-2在机筒2内异向旋转。喂料系统6和排气口4分别与机筒2内腔相通，加热圈5包覆在机筒2的外部。两根锥形螺杆3-1和3-2在机筒2内异向旋转时，将由喂料系统6输送的原料熔融、塑化、混炼、排气，最后通过挤出模具1挤出成型。本实施例中的螺杆小头直径为65mm，螺杆有效长径比为28∶1。
实施例二
如图1、图3、图4所示，本实施例的超锥形双螺杆挤出设备包括：挤出模具1、机筒2、锥形螺杆3、排气口4、加热圈5、喂料系统6、分配齿轮箱7、减速传动箱8、联轴器9、驱动电机10、机架11，两根锥形螺杆3-3和3-4在机筒2内的旋转方向为同向旋转。
驱动电机10通过联轴器9连接到减速传动箱8，减速传动箱8连接分配齿轮箱7中的主动齿轮12，主动齿轮12带动中间齿轮13，中间齿轮13再带动从动齿轮14，从而使与主动齿轮12和从动齿轮14连接的两根锥形螺杆3-3和3-4在机筒2内同向旋转。喂料系统6和排气口4分别与机筒2内腔相通，加热圈5包覆在机筒2的外部。两根锥形螺杆3-3和3-4在机筒2内同向旋转时，将由喂料系统6输送的原料熔融、塑化、混炼、排气，最后通过挤出模具1挤出成型。本实施例中的螺杆小头直径为80mm，螺杆有效长径比为32∶1。
上述实施例一、二及附图是对本实用新型的进一步详细说明，但本实用新型要求保护的范围并不局限于实施例中所描述的范围。凡采用等同替换或等效变换形成的技术方案，均落在本实用新型要求的保护范围。

Claims (2)

1.一种超锥形双螺杆挤出设备，包括挤出模具、机筒、锥形螺杆、排气口、加热圈、喂料系统、分配齿轮箱、减速传动箱、联轴器、驱动电机、机架，其特征在于：两根锥形螺杆的有效长径比为24～75∶1。
2.根据权利要求1所述的超锥形双螺杆挤出设备，其特征是：与机筒连接的排气装置个数为1～3个。 
CN2010206801231U 2010-12-14 2010-12-14 超锥形双螺杆挤出设备 Expired - Fee Related CN201979686U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108943643A (zh) * 2018-08-06 2018-12-07 南京欧纳壹有机光电有限公司 一种改性塑料双螺旋挤出成型系统的原料预混装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108943643A (zh) * 2018-08-06 2018-12-07 南京欧纳壹有机光电有限公司 一种改性塑料双螺旋挤出成型系统的原料预混装置

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