CN1575961A - 用于制备机械特别是挤出机的筛分装置 - Google Patents
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Abstract
用于材料制备机械,特别是挤出机(1)的筛分装置(21)具有一壳体(20),该壳体具有一垂直于挤出机(1)轴线(8、9)延伸的通孔(22),在该孔内设一可沿其轴线(23)方向移动的筛分杆(25)。在筛分杆(25)内紧接着筛分段(28)形成一管段(29),筛分好的材料沿通孔(22)的轴线(23)方向通过该管段流出。
Description
技术领域
本发明涉及一种用于制备机械特别是挤出机的的筛分装置。
背景技术
在一种由DE3419822A1(对应于美国专利4597870)已知的筛分装置中筛分杆做成两件式的。在筛分段内设一通入一平行于入口通道延伸的出口通道的环形输出通道。为了清洁筛分段筛分杆可以沿筛分杆轴线方向移动。这种结构方案结构上和制造工艺上复杂,并且难以清洁。
发明内容
因此本发明的目的是,这样地改进开头所述类型的筛分装置,使它结构较简单、便于清洗,且由此运行可靠。
根据本发明通过这样一种筛分装置来实现该目的,该筛分装置具有:一壳体,该壳体具有一个具有一轴线的通孔,一垂直于所述轴线通入所述通孔的入口通道,并在通孔的端部具有一个第一和一个第二侧壁;一筛分杆,该筛分杆具有:一筛分段,一沿所述轴线方向朝第一侧壁限定筛分段的、在所述通孔内被引导的封闭段,一沿所述轴线方向朝第二侧壁限定筛分段的且在通孔内被引导的区段,和一从筛分段中引出的、在所述区段内形成的出口通道,该筛分装置的特征在于:所述区段可设计成在轴线方向延伸的管段,其中出口通道一直通到筛分杆的与第二侧壁相配的端部处;以及,所述管段和筛分段一起可在所述通孔中沿所述轴线的方向在一第一位置和一第二位置之间移动,其中在第一位置筛分段位于入口通道之前,而在第二位置位于壳体之外,且其中在第二位置所述管段封闭入口通道。本发明的核心在于,设置一沿筛分杆的轴线延伸的出口通道,该出口通道穿过整个筛分段和与它相连的与封闭段相对的筛分杆的管段。此管段可以在内部从其末端方便地清洁。其加工也可以非常方便地进行。筛分的材料转向90°输出,即垂直于入口通道输出。也就是说根据本发明的筛分装置在一个前置和一个后置的装置之间形成一直角连接器,例如前置的挤出机或齿轮泵,后置的装置是制粒装置、齿轮泵等。
根据本发明的另一种有利的实施形式,筛分杆的与所述第二侧壁相配的端部设计成用来与一用于实施一后续工步的后置装置连接。由此即使在运行位置筛分杆也不必固定在筛分装置的壳体内,因为它与用来实现一设置在筛分过程后面的工步的后置装置固定连接。此外这种结构具有这样的优点,即筛分杆和后置装置的由温度引起的膨胀可以得到补偿,因为筛分杆基本上可自由移动地设置在筛分装置壳体的通孔内。在这种结构方案中发明的筛分装置同时是一其前置和一后置装置之间的补偿器。按本发明的又一有利的实施形式,所述管段可通过一快速拆卸连接结构与后置的装置连接,从而可以快速形成或脱开筛分杆与后置装置的连接。
为了使筛分杆能够移动至使筛分段位于筛分装置壳体之外,可在壳体和封闭段之间设置至少一个合适的筛分杆移动装置,而且所述移动装置相对于壳体具有间隙。
按本发明另一种有利的结构可能性,入口通道设计成用来接纳一前置的挤出机的蜗杆尖。
附图说明
本发明的其它特征,优点和细节由以下借助于附图对实施例的说明得到。附图表示:
图1以水平剖视图表示一挤出设备,它具有一挤出机,一安装其上的筛分装置和一设置在筛分装置后面的用来实施另一后续工步的装置,
图2筛分装置的筛分带,
图3筛分装置处于运行位置的另一种结构形式,
图4按图3的筛分装置在清洁位置,
图5筛分装置处于运行位置的另一种实施形式,和
图6按图5的筛分装置在清洁位置。
具体实施方式
按图1一用来制备特别是塑料的挤出装置具有一挤出机1。该挤出机通过一联接器3和传动装置4由一马达2驱动。挤出机1具有一挤出机壳体5,壳体内形成两个具有相互平行的轴线8、9的壳体孔6、7,所述壳体孔相互平行分布并相互连接成一大致的“8”字形,在所述壳体孔6、7内设置两根连接在传动装置4上的蜗杆轴10、11。蜗杆轴10、11被同向或反向地驱动,挤出机1具有一沿输送方向12设置在传动装置4后面的输入漏斗13,在漏斗上连接一个或多个处理区。为此在蜗杆轴10、11上沿输送方向顺序安装蜗杆件14、揉捏(Knet)件15和又是蜗杆件16。在蜗杆轴10、11沿输送方向12的后端上形成蜗杆尖17、18。蜗杆尖17、18在壳体5的下游端部处向外突出于该壳体。
筛分装置21的壳体20螺纹连接在壳体5的下游端法兰19上。壳体20具有一圆柱形通孔22,其轴线23垂直于轴线8、9延伸并分布在由轴线8、9确定的平面内。该通孔22借助于一个入口通道24与挤出机壳体5的壳体孔6、7连接,该入口通道在壳体20内形成,具有一大致为“8”字形的横截面,并与逐渐变细的蜗杆尖17、18相配合地朝通孔22方向逐渐变细。
在通孔22内设置一可在通孔22内沿轴线23方向移动的筛分杆25。筛分杆具有一封闭的,在某些情况下是实心的封闭段26,它在正常运行位置与壳体20的侧壁27接平/封闭。在这个位置该封闭段相对于侧壁27封闭通孔22。紧接着封闭段26筛分杆25具有一在运行位置时位于入口通道24前面的筛分段28。在筛分段28上连接一管段29,与筛分段28相同,该管段具有一从封闭段26至相对的端部贯通的出口通道30。管段29还紧密地贴合在通孔22的壁部上,并相对于与侧壁27相对的侧壁31密封该通孔。在管段29上连接一用来实现一筛分过程后面的工步的装置33的连接管接头32。在图1中所示的实施例中该装置是一普通的制粒装置。同样它也可以是一齿轮泵或一在实践中常见的其它后置装置。管段和连接管接头32通过一可快速拆卸的法兰连接装置例如所谓的夹板(Klammer)法兰34相互连接。
筛分段28具有一与管段29和封闭段26固定连接的支承体35,所述支承体可与管段和封闭段焊接或用其它方式连接,或与它们做成一体。支承体35通常具有和出口通道30相同的内径di。与此不同,其外径da小于通孔22的内径Di,这样在支承体35周围形成一向外由通孔22的壁部限定的环形通道36。支承体35具有大量例如直径为5mm的通过口37。
围绕支承体35铺设一在图1中为了图示的清晰起见未画出的,而单独在图2中示出的商业上通用的筛分带38,该筛分带具有很大数量的例如具有0.5mm的直径的非常小的过滤孔39。筛分带38借助于夹紧元件40固定在支承体35上。所述夹紧元件40可方便地拆卸,从而可以非常快地将筛分带38安装在支承体35上或从支承体上拆下。
在通过拉或推移动筛分杆25之前打开夹板法兰34,即松开管段29和装置33的连接管接头32之间的连接。
在按图1的实施例中没有采取专门的措施将筛分杆25的封闭段26从壳体20中移出以更换筛分带38,而在按图3和4以及5和6的实施例中则为此设有相应的移动装置41或41′。为此各封闭段26或26′分别具有一个固定法兰42,在所述固定法兰和壳体20之间分别设置至少两个设计成直线驱动装置的移动驱动装置43或43′。在此按图3和4的实施例中该驱动装置都是分别支承在固定法兰42上的一螺纹孔45内和支承在壳体20上的丝杠44。通过丝杠44的相应旋转或者通过一安装在其外端部上的多棱头46将封闭段26并从而将整个筛分杆25从壳体20中拉出或推出,而且将其拉出或推出至筛分段28按图4的所示向外移出置于一清洁位置。在这个位置可以更换筛分带38和在某些情况下清洁支承体35。
在按图5和6的实施形式中,作为移动驱动装置43′在固定法兰42和壳体20之间设有可液压或气动加载的作为直线驱动装置即推出驱动装置的活塞气缸驱动装置,其中气缸47支承在固定法兰42上,而活塞杆48支承在壳体20上。为了即使在图5中所示的运行位置移动装置41′在固定法兰42和壳体20之间有足够的空间,在这个实施例中封闭段26超过侧壁27向外延长。
在挤出机1中以常见的方式制备和塑化的通常是塑料的材料直接从挤出机壳体5流入筛分装置21的壳体20,并通过其接纳蜗杆尖17、18的入口通道24流入环形通道36。在那里材料经过由筛分带38和支承体35进行相应的筛分而流入出口通道30,并通过该出口通道流入后置的装置33。如果由于强烈的温差出现管段29本身的伸长以及装置33沿轴线23方向分布的相应的伸长,所述伸长在筛分装置21内得到补偿,因为筛分杆25可沿其轴线23方向自由移动。为了能够对所述的由温度引起的长度变化进行补偿,在运行位置时在丝杠44和壳体20或者活塞杆48和壳体20之间设有几毫米的间隙49。
Claims (6)
1.用于制备机械,特别是挤出机的筛分装置(21),
-具有一壳体(20),它
-具有一具有一轴线(23)的通孔(22),
-具有一垂直于所述轴线(23)通入所述所述通孔(22)的入口通道(24),和
-在通孔(22)的端部具有一个第一和一个第二侧壁(27、31),
-具有一筛分杆(25),它具有
-一筛分段(28)
-一沿所述轴线(23)方向朝第一侧壁(27)限定筛分段(28)的、在所述通孔(22)内被引导的封闭段(26、26′),
-一沿所述轴线(23)方向朝第二侧壁(31)限定筛分段(28)的,在所述通孔(22)内被引导的区段和
-一从筛分段(28)中引出的,在所述区段内形成的出口通道(30),
其特征为:
所述区段可设计成在轴线(23)方向延伸的管段(29),其中出口通道(30)一直通到筛分杆(25)的与第二侧壁(31)相配的端部处,和
所述管段(29)和筛分段(28)一起可在通孔(22)中沿所述轴线(23)方向在一第一位置和一第二位置之间移动,其中在第一位置筛分段(28)位于入口通道(24)之前,而在第二位置位于壳体(20)之外,且其中在第二位置所述管段(29)封闭入口通道(24)。
2.按权利要求1所述的筛分装置(21),其特征为:筛分杆(25)的与第二侧壁(31)相配的端部设计成用来与一用于实施一后续工步的后置装置(33)连接。
3.按权利要求2所述的筛分装置(21),其特征为:管段(29)可通过一快速拆卸连接结构与后置的装置(33)连接。
4.按权利要求1所述的筛分装置(21),其特征为:在壳体(20)和封闭段(26、26′)之间设置至少一个移动装置(41、41′)。
5.按权利要求4所述的筛分装置(21),其特征为:在所述至少一个移动装置(41、41′)和壳体(20)之间设有一间隙(49)。
6.按权利要求1所述的筛分装置(21),其特征为:入口通道(24)设计成用来接纳一前置的挤出机(1)的蜗杆尖(17、18)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03017022.9 | 2003-07-26 | ||
EP03017022A EP1502724B1 (de) | 2003-07-26 | 2003-07-26 | Sieb-Vorrichtung für Aufbereitungs-Maschinen, insbesondere Extruder |
Publications (2)
Publication Number | Publication Date |
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CN1575961A true CN1575961A (zh) | 2005-02-09 |
CN100528533C CN100528533C (zh) | 2009-08-19 |
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CNB2004100546341A Expired - Fee Related CN100528533C (zh) | 2003-07-26 | 2004-07-22 | 用于材料制备机械的筛分装置 |
Country Status (4)
Country | Link |
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EP (1) | EP1502724B1 (zh) |
CN (1) | CN100528533C (zh) |
AT (1) | ATE330771T1 (zh) |
DE (1) | DE50303959D1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103201082A (zh) * | 2010-10-25 | 2013-07-10 | 马格泵系统股份有限公司 | 用于过滤塑料熔体的设备 |
CN109173387A (zh) * | 2018-10-31 | 2019-01-11 | 大连橡胶塑料机械有限公司 | 全面积过滤换网机构 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE487588T1 (de) * | 2008-09-23 | 2010-11-15 | Coperion Gmbh | Extruder-anlage |
DE102012100641A1 (de) * | 2011-07-29 | 2013-01-31 | Kreyenborg Verwaltungen Und Beteiligungen Gmbh & Co. Kg | Filtriervorrichtung zur Großflächenfiltration von Fluiden |
CN103192517B (zh) * | 2013-04-15 | 2015-01-28 | 彭卫 | 全自动废旧塑料过滤模头 |
CN105252742B (zh) * | 2015-08-10 | 2017-10-24 | 佛山市奔浩塑料机械有限公司 | 高分子材料无网过滤自动排渣装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1595470A (en) * | 1924-05-12 | 1926-08-10 | Edgar H Johnson | Extruding machine |
JPS53112962A (en) * | 1977-03-15 | 1978-10-02 | Tomoo Kinoshita | Wireenet replacement device of plastic filter |
DE2947685A1 (de) * | 1979-11-27 | 1981-07-23 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover | Filtervorrichtung fuer schneckenextruder |
AT400128B (de) * | 1992-02-14 | 1995-10-25 | Erema | Filtriervorrichtung für fliessfähiges material, insbesondere für verunreinigte kunststoffschmelzen |
DE19500060C1 (de) * | 1994-11-26 | 1995-11-30 | Kreyenborg Verwaltungen | Filtereinrichtung für Strangpreß- und Spritzgießmaschinen |
US5618423A (en) * | 1996-07-23 | 1997-04-08 | Lin; Ping Ho | On-the-fly long-running rotary filtration screen device |
-
2003
- 2003-07-26 EP EP03017022A patent/EP1502724B1/de not_active Expired - Lifetime
- 2003-07-26 AT AT03017022T patent/ATE330771T1/de active
- 2003-07-26 DE DE50303959T patent/DE50303959D1/de not_active Expired - Lifetime
-
2004
- 2004-07-22 CN CNB2004100546341A patent/CN100528533C/zh not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103201082A (zh) * | 2010-10-25 | 2013-07-10 | 马格泵系统股份有限公司 | 用于过滤塑料熔体的设备 |
CN103201082B (zh) * | 2010-10-25 | 2015-04-22 | 马格泵系统股份有限公司 | 用于过滤塑料熔体的设备 |
US9295930B2 (en) | 2010-10-25 | 2016-03-29 | Maag Automatik Gmbh | Device for filtering a plastic melt |
CN109173387A (zh) * | 2018-10-31 | 2019-01-11 | 大连橡胶塑料机械有限公司 | 全面积过滤换网机构 |
Also Published As
Publication number | Publication date |
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EP1502724A1 (de) | 2005-02-02 |
EP1502724B1 (de) | 2006-06-21 |
ATE330771T1 (de) | 2006-07-15 |
CN100528533C (zh) | 2009-08-19 |
DE50303959D1 (de) | 2006-08-03 |
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