CN1394737A - 直接驱动式挤出机及其运行方法 - Google Patents
直接驱动式挤出机及其运行方法 Download PDFInfo
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- CN1394737A CN1394737A CN02141210A CN02141210A CN1394737A CN 1394737 A CN1394737 A CN 1394737A CN 02141210 A CN02141210 A CN 02141210A CN 02141210 A CN02141210 A CN 02141210A CN 1394737 A CN1394737 A CN 1394737A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/241—Drive means therefor; screw bearings
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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
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
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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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92952—Drive section, e.g. gearbox, motor or drive fluids
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/9298—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
-
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
本发明涉及一种挤出机(1),其优选将颗粒状塑料材料转变成熔化状态,而且它具有至少一个a)圆柱缸筒(6),其中设有一个b)可旋转的挤出机螺杆(2),该螺杆与一个c)至少具有一个马达(9)的驱动单元(3)相连接,从而使该驱动单元(3)为挤出机螺杆(2)的旋转运动提供转矩,d)其中该至少一个马达(9)配有一个或多个转子(8);和e)其中挤出机螺杆(2)和该至少一个转子(8)在工作时具有相同的转速。另外介绍了使挤出机运行的方法。
Description
技术领域
本发明涉及一种挤出机及其运行方法。
技术背景
上述类的塑料薄膜挤出机通常用来将塑料原材料转变成适合于继续加工用的熔化状态。这种挤出机主要使用在如专利DE19931147所描述的挤出设备里。
挤出机螺杆由驱动单元驱动,该单元通过传动机构或者刚性地与挤出机螺杆相连,或者与挤出机螺杆通过链连接或皮带连接而传递必要的转矩。
在这两种情况下所使用的传动机构比较贵而且结构庞大。
发明内容
因而本发明的任务就是建议一种装置和方法,其中这种传动机构是多余的。
该项任务通过这样的挤出机来解决,即该挤出机优选将颗粒状塑料材料转变成熔化状态,并且具有至少一个圆柱缸筒,其中设有一个可旋转的挤出机螺杆,该螺杆与一个至少具有一个马达的驱动单元相连接,从而使该驱动单元为挤出机螺杆的旋转运动提供转矩,且该至少一个马达配有一个或多个转子,其中挤出机螺杆和该至少一个转子在工作时具有相同的转速。
由于通常要求挤出机螺杆的转矩较大,有利的是设置一种由多个马达组成的驱动单元,此处可以是价廉驱动技术的标准元部件。目前在电机结构中通常用高极数的同步或异步电机来产生高转矩或者此处首先为高起动转矩。
但通常也可以用直流驱动。
这样的电机也可以相互耦联起来以提供足够的转矩。在耦联这些模块化结构的驱动单元时可以使用能快速松开的连接装置,以便例如能够快速地对备用转矩要求发生的变化作出反应,但也是为了节省装配时间。皮带或者链条也属于这种连接。就应用皮带或链条来传递转矩的装置来说,转子和挤出机螺杆的旋转轴线通常是不在一条直线上的。
作为使各个不同的待连接的可旋转部件(转子和挤出机螺杆)的旋转轴线在一条直线上的连接装置可以是例如由空心轴和轴颈组成的功能对。但按照本发明也可以使可旋转的部件为不可逆的连接或者使用由一个零件制成的转子和螺杆。
采用电机结构时可以将各个不同的马达(最好是平行的)连接到一个共用的电源上就够了,该电源可由一个变频器组成。
但也可以应用各个不同的变频器。此处一个马达可以由转速调节而且在不同马达的调节级上起主导作用。也可以采用优于转速的调节参数,例如挤出机缸筒里的质量压力。
在这样一种情况下另外的马达就可以电流调节或控制,或者说转矩调节或控制,并且起辅助作用。
附图说明
本发明的其它有利的实施形式和实施例可见其它的权利要求、相关的说明和附图。
各个附图表示了:
图1是一个挤出机的侧视图,它具有一个由一个马达组成的驱动单元。
图2是一个挤出机的侧视图,它具有一个由三个马达组成的驱动单元。
具体实施方式
图1表示了一种按本发明所述的挤出机1的实施例,它具有一个圆柱缸筒6,在其中设有一个可旋转的挤出机螺杆2。挤出机螺杆2由轴承4支承住。挤出机螺杆2刚性地与在本实施例中由一个马达9组成的驱动单元3的转子8相连接。转子8和螺杆2的连接装置在此处是一个轴颈和一个空心轴,这里并未表示出来。在挤出机工作时通过一个没有表示出来的在漏斗件5里的漏斗向挤出机输入颗粒状的塑料材料。通过挤出接管7将熔化塑料挤出并且通常经过合适的管路输送给塑料薄膜吹制口。该薄膜吹制挤出设备的最后两个组成部分此处没有表示出。
图2表示了一种同样结构的挤出机1,其中驱动单元3由三个盘状马达9组成,这些马达相互排列成行并且一起为挤出机螺杆的旋转运动提供必要的转矩。马达9的一个转子8为盘状转子,若其长度和直径之比至少达1∶1,则适合于本专利申请的目的。这种盘状转子的应用是有利的,即在驱动单元3的结构长度受到限制时产生高的转动力矩。
在这二种实施例中均采用了作为马达9的电机结构。电气线路和其它的供电装置,如变频器同样也被略去了。
附图标记1 挤出机2 挤出机螺杆3 驱动单元4 轴承5 漏斗件6 圆柱缸筒7 挤出接管8 转子9 马达
Claims (13)
1.挤出机(1),其优选将颗粒状塑料材料转变成熔化状态,而且其具有至少一个
a)圆柱缸筒(6),其中设有一个
b)可旋转的挤出机螺杆(2),该螺杆与一个
c)至少具有一个马达(9)的驱动单元(3)相连接,从而使该驱动单元(3)为挤出机螺杆(2)的旋转运动提供转矩,
d)其中该至少一个马达(9)配有一个或多个转子(8),
其特征在于,挤出机螺杆(2)和该至少一个转子(8)在工作时具有相同的转速。
2.按权利要求1所述的挤出机(1),其特征在于,驱动单元(3)由多个马达(9)组成。
3.按权利要求2所述的挤出机(1),其特征在于,至少两个马达(9)的转子(8)的旋转轴线是在一条直线上。
4.按权利要求3所述的挤出机(1),其特征在于,至少二个马达(9)的转子(8)的旋转动轴线和挤出机螺杆(2)的旋转轴线相互在一条直线上。
5.按上述权利要求中任一项所述的挤出机(1),其特征在于,旋转部件即转子(8)和挤出机螺杆(2)中至少有一个部件与可以快速松开的连接装置相互连接。
6.按上述权利要求中任一项所述的挤出机(1),其特征在于,马达组(9)中至少一个马达具有盘状的转子(8),即所谓盘状转子。
7.按上述权利要求中任一项所述的挤出机(1),其特征在于,马达(9)是电机结构。
8.按上述权利要求中任一项所述的挤出机(1),其特征在于,马达(9)是异步电机。
9.按上述权利要求中任一项所述的挤出机(1),其特征在于,驱动单元(3)中至少有一部分马达(9)与共用的变频器相连接。
10.按上述权利要求中任一项所述的挤出机(1),其特征在于,电机(9)要进行调节,其中马达(9)的输出或输入参数的调节至少是以挤出机(1)的以下状态参数之一为基础的:
-挤出机(1)的流量
-挤出机(1)缸筒(6)里的惯性压力。
11.按权利要求10所述的挤出机(1),其特征在于,有一个马达(9)是转速调节的,在这些马达中马达(9)的调节级起主导的作用,而其余马达(9)(辅助装置)的控制或调节则按转矩,或者说电流来进行。
12.按上述权利要求中任一项所述的挤出机(1),其特征在于,挤出机的挤出部分是例如一个薄膜吹制挤出设备或一个薄膜浇注挤出设备。
13.使挤出机(1)工作的方法,其中优选将颗粒状塑料材料转变成溶化状态,而且该挤出机(1)具有至少一个
a)圆柱缸筒(6),其中设有一个
b)可旋转的挤出机螺杆(2),它与一个
c)至少具有一个马达(9)的驱动单元(3)相连接,从而使该驱动单元(3)为挤出机螺杆(2)的旋转运动提供转矩,
d)其中该至少一个马达(9)配有一个或多个转子(8),
其特征在于,挤出机螺杆(2)和该至少一个转子(8)在工作时以相同的转速加载。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10132002.7 | 2001-07-03 | ||
DE10132002A DE10132002C5 (de) | 2001-07-03 | 2001-07-03 | Direktangetriebener Extruder |
Publications (2)
Publication Number | Publication Date |
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CN1394737A true CN1394737A (zh) | 2003-02-05 |
CN1246136C CN1246136C (zh) | 2006-03-22 |
Family
ID=7690320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB021412103A Expired - Fee Related CN1246136C (zh) | 2001-07-03 | 2002-07-03 | 直接驱动式挤出机及其运行方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7090483B2 (zh) |
EP (1) | EP1273426B1 (zh) |
JP (1) | JP2003103597A (zh) |
CN (1) | CN1246136C (zh) |
AT (1) | ATE477908T1 (zh) |
BR (1) | BR0202512A (zh) |
CA (1) | CA2391849C (zh) |
DE (2) | DE10132002C5 (zh) |
Cited By (1)
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CN101096125B (zh) * | 2006-06-29 | 2012-10-03 | 株式会社日本制钢所 | 双螺杆挤压机的驱动装置及其驱动方法 |
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DE10357884A1 (de) * | 2003-12-11 | 2005-07-21 | Windmöller & Hölscher Kg | Direktangetriebener Extruder mit Adapter |
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- 2001-07-03 DE DE10132002A patent/DE10132002C5/de not_active Expired - Fee Related
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2002
- 2002-05-04 DE DE50214589T patent/DE50214589D1/de not_active Expired - Lifetime
- 2002-05-04 AT AT02009998T patent/ATE477908T1/de active
- 2002-05-04 EP EP02009998A patent/EP1273426B1/de not_active Expired - Lifetime
- 2002-06-25 US US10/178,510 patent/US7090483B2/en not_active Expired - Lifetime
- 2002-06-27 CA CA2391849A patent/CA2391849C/en not_active Expired - Fee Related
- 2002-07-03 BR BR0202512-4A patent/BR0202512A/pt not_active Application Discontinuation
- 2002-07-03 JP JP2002194592A patent/JP2003103597A/ja not_active Ceased
- 2002-07-03 CN CNB021412103A patent/CN1246136C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101096125B (zh) * | 2006-06-29 | 2012-10-03 | 株式会社日本制钢所 | 双螺杆挤压机的驱动装置及其驱动方法 |
Also Published As
Publication number | Publication date |
---|---|
DE10132002B4 (de) | 2004-12-23 |
EP1273426B1 (de) | 2010-08-18 |
CA2391849C (en) | 2010-05-04 |
JP2003103597A (ja) | 2003-04-09 |
DE10132002C5 (de) | 2009-12-31 |
CN1246136C (zh) | 2006-03-22 |
CA2391849A1 (en) | 2003-01-03 |
BR0202512A (pt) | 2003-05-13 |
DE50214589D1 (de) | 2010-09-30 |
US7090483B2 (en) | 2006-08-15 |
ATE477908T1 (de) | 2010-09-15 |
EP1273426A1 (de) | 2003-01-08 |
DE10132002A1 (de) | 2003-02-06 |
US20030012838A1 (en) | 2003-01-16 |
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