CN103781613A - 带有行星心轴和止推环的行星式轧制挤压机 - Google Patents

带有行星心轴和止推环的行星式轧制挤压机 Download PDF

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Publication number
CN103781613A
CN103781613A CN201280031387.6A CN201280031387A CN103781613A CN 103781613 A CN103781613 A CN 103781613A CN 201280031387 A CN201280031387 A CN 201280031387A CN 103781613 A CN103781613 A CN 103781613A
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CN
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Prior art keywords
extruder
upm
planetary
extrusion equipment
central axle
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Pending
Application number
CN201280031387.6A
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English (en)
Inventor
H.鲁斯特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rust & Mitschke Entex LLC
Entex Rust and Mitschke GmbH
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Rust & Mitschke Entex LLC
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Publication of CN103781613A publication Critical patent/CN103781613A/zh
Pending legal-status Critical Current

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Abstract

根据本发明,在带有行星式轧制挤压机或行星式轧制挤压机部段或行星式轧制挤压机模块(22,23,24)的挤压设备处,为了精细分散将中央心轴的转速提高原本已知的最大转速的多倍。

Description

带有行星心轴和止推环的行星式轧制挤压机
技术领域
本发明涉及一种根据权利要求1的前序部分的行星式轧制挤压机(Planetwalzenextruder)。行星式轧制挤压机是特殊的挤压机。挤压机优选地用于塑料的加工。行星式轧制挤压机但是还适合于加工食品和其它材料,其可以以熔融的形式来运送或者已熔融地被引入挤压机中。该加工常常包括与固体材料混合。
背景技术
在此,塑料大多以颗粒形式与添加剂(Zuschlag)一起被置入挤压机中。置入混合物(Einsatzmischung)在挤压机中被塑化(plastifizieren)、分散、均匀化、接下来冷却到挤压温度上并且在熔融状态中又被排出。排出喷嘴(Austragdüse)被称为挤压机工具。还发生在没有喷嘴的情况下被挤压。喷嘴也被称为挤压工具。喷嘴模仿期望的挤压束(Extrusionsstrang)的横截面。也就是说,喷嘴赋予熔融物形状。挤压束在周围空气处冷却和/或利用其它冷却剂被冷却成使得熔融物凝固并且挤压束占据保留的形状。直至在外表面处达到足够的强度,优选地利用所谓的校正器(Kalibrater)将挤压束支撑在外表面处。
存在不同运用,在其中挤压工具不是必要的。当在多个级中挤压时,这例如是这样的情况。当设置有仅仅一个级时,称主挤压机,其将在其中所产生的且优选地此外所处理的熔融物递送到次级挤压机处。在两个级之间常常设置有熔融物的除气。对此,那么存在递送区域。在递送壳体(Übergabegehäuse)中相对于在主挤压机中的熔融物压力产生负压,使得包含的气体从熔融物排出。借助于合适的抽吸装置从递送壳体抽出积累的气体。当来自挤压机的熔融物为了冷却被发出到板带(Plattenband)上以便在破碎机(Brecher)/研磨机(Mahlwerk)中硬化之后被带到期望的颗粒尺寸上时,颜色原料(Farbrohstoff)的产生也属于在其中挤压工具不是必要的挤压过程。当挤压机例如具有产生熔融物并且必要时准备以将熔融物接下来压入另一挤压机(在那里将熔融物与其它材料混合)中的目的时,经常可存在不带挤压工具的挤压机。
行星式轧制挤压机相对于其它挤压机形式在塑化、均匀化和冷却时具有显著优点。
因此,行星式轧制挤压机越来越重要。在此,经常存在组合的结构形式。行星式轧制挤压机被与单螺杆挤压机部段(Einschneckenextruderabschnitt)相组合。优选地,单螺杆挤压机部段运用在材料进入部(Materialeinzug)中或在挤压机排出部(Extruderaustrag)处。或者将行星式轧制挤压机与其它结构类型的部段相组合。
当行星式轧制挤压机部段模块化地来设计或模块化地来制造时,称作行星式轧制挤压机模块、也称行星式轧制模块。模块简化了设计和制造。
通常也将这样组合的挤压设备称为行星式轧制挤压机,因为行星式轧制挤压机部段被视为对该设备产生主要影响(prägend)。
行星式轧制挤压机通过其结构和其各个部件的作用方式获得其特别的作用方式。行星式轧制挤压机的核心是中央心轴(Zentralspindel),其与多个行星心轴(行星式轧制心轴)啮合。通常涉及6至12个行星心轴。行星心轴的数目通常与挤压机直径相关联。在挤压机直径较大时也存在明显多于12个行星心轴。
行星心轴同时与围绕的壳体套的内齿部(Innenverzahnung)或与壳体的内齿部啮合。在中央心轴旋转期间,行星心轴围绕中央心轴运转。
在中央心轴、行星心轴和套之间以极端的方式来处理置入混合物。处理是集中的,因为挤压物(Extrusionsgut)在行星式轧制挤压机部件之间相应于行星心轴的数目及其与中央心轴和壳体齿部的接合多重地且细薄地被滚轧。因此产生与熔融物极其大范围的接触。同时,挤压物在行星式轧制挤压机中的加工特别漂亮,因为分子链不或仅最小地被切断。
中央心轴在轴向上通过吸收轴向力的轴承来保持。行星心轴对着在熔融物的流动方向上布置在行星心轴的端部处的止推环(Anlaufring)运行。其以其端面沿着止推环的端面滑动。
行星式轧制挤压机比其它挤压机例如单螺杆挤压机和双螺杆挤压机更复杂。因此尽管有显著的方法优点,行星式轧制挤压机使相对于单螺杆挤压机和双螺杆挤压机难以实施。
发明内容
本发明目的在于使行星式轧制挤压机对于以一定的方法的应用还更有吸引力。根据本发明由此来实现,即中央心轴的转速相对于通常的转速被显著提高。根据本发明,可选择性地相对于通常转速设置转速提高至少2倍或至少3倍或至少4倍或至少5倍或至少6倍。随着根据本发明的转速的提高,极其增强了混合成分在熔融物中的分散(Dispergierung)。这对于食品的加工、对于化学工业(例如对于反应对象(Reaktionspartner)的分布或对于用于期望的反应的辅助剂的分布)、对于制造颜料和熔融物的染色、对于塑料工业(例如对于聚合剂(Vernetzungsmittel)在塑料中的分布)和对于粘合剂的制造是有利的。
行星式轧制挤压机的通常的转速取决于结构尺寸。结构尺寸越大,通常的转速越小。结构尺寸在此根据壳体的内齿部的分度圆直径或根据壳体套的内齿部的分度圆直径来说明。同时,可在标准行星式轧制挤压机、特殊行星式轧制挤压机和在较重的实施方案中的行星式轧制挤压机之间相区别。当前的行星式轧制挤压机在咬合的和相互啮合的部件处具有渐开线齿部(Evolventenverzahnung)。齿部在DIN 867中确定。渐开线齿部的最重要的因素是齿模数(Zahnmodul)。齿模数、齿数和齿部的分度圆直径确定齿形。仅相同模数的齿轮应相互啮合。壳体内齿部或壳体套内齿部的分度圆直径确定结构尺寸。
迄今为止对于标准行星式轧制挤压机存在以下的以毫米(mm)为单位的结构尺寸:
Figure DEST_PATH_IMAGE002
迄今为止在行星式轧制挤压机的较重的实施方案中存在以下的结构尺寸:
不是行星式轧制挤压机的所有制造者如申请者那样提供上面列出的全部结构尺寸。
根据本发明的转速提高涉及上面所说明的最大转速。由此然后以根据本发明的加倍得到对于中央心轴的新的转速。围绕中央心轴在壳体中运转的行星心轴的转速根据从中央心轴至行星心轴的传动比还要高多倍。专业人员知道,旋转的部件的负荷随着转速变大成指数地增加。同时应考虑的是,行星心轴在中央心轴与壳体的内齿部之间仅具有非常“普通的”支承。该支承具有比平均的轴支承的间隙大多倍的间隙。此外,行星心轴在其长度上不同地受载。这由挤压物的不同性质和由挤压物在行星式轧制挤压机中的不同分布引起。不同性质由此得出,即在挤压机的输送方向上在起始处通常将固体共同输入挤压机中,其然后在进一步运输通过挤压机时被分布到熔融物中。带有固体的混合物具有与在挤压机端部处的熔融混合物不同的粘滞性/粘度。
不同的充填由此得出,即行星式轧制挤压机从不完全充填有挤压物,优选地充填度为最高90%、还进一步优选地最高80%和最优选地最高70%。同时应考虑行星式轧制挤压机的输送作用。这导致,在挤压机的出口的方向上输送挤压物。中腔体积那么基本上处于入口侧。这导致在行星心轴处作用在不同部位处的不同的力。专业人员必须担心,行星式轧制部件不再经受得住由于提高的转速而增加的负荷并且行星心轴甚至从齿部跳起且被破坏或损坏其它行星式轧制部件的齿部。这是与根据本发明的转速提高相冲突的考虑。令人惊讶地,通过转速的提高既不提高损坏频率也不提高损坏范围。
根据本发明的转速的加倍/提高导致以下值:
标准:
结构尺寸  中央心轴的至少必需的转速以Upm为单位
70 mm   440或660或880或1100或1320或1560
100 mm   440或660或880或1100或1320或1560
120 mm   440或660或880或1100或1320或1560
150 mm   230或345或460或575或690或805
180 mm   160或240或320或400或480或560
200 mm   160或240或320或400或480或560
250 mm   160或240或320或400或480或560
300 mm   160或240或320或400或480或560
400 mm   160或240或320或400或480或560
较重的实施方案:
结构尺寸  160或240或320或400或480或560
280 mm   160或240或320或400或480或560
300 mm   160或240或320或400或480或560
400 mm   160或240或320或400或480或560
500 mm   160或240或320或400或480或560
只要存在或制造带有其它结构尺寸的特殊行星式轧制挤压机,该挤压机在前面列出的对于行星式轧制挤压机已知的结构尺寸上设立。偏离的结构尺寸那么处于已知的上面列出的结构尺寸之间。对于偏离的结构尺寸的对于根据本发明的转速的基础那么形成最接近该另外的结构尺寸的上面列出的结构尺寸的最大转速。以170mm的另外的结构尺寸为例,这意味着:最接近的上面列出的结构尺寸是带有80Upm的迄今为止的最大转速的180mm的结构尺寸。该80Upm那么形成对于根据本发明的转速的加倍/提高的基础。假如偏离的结构尺寸精确地处于两个已知的上面列出的结构尺寸之间,最接近较小的上面列出的结构尺寸的最大转速形成对于偏离的结构尺寸的最大转速的基础。以结构尺寸350mm为例,这意味着:最接近较小的列出的结构尺寸是带有80Upm的迄今为止的最大转速的300m的结构尺寸。该80Upm那么形成对于根据本发明的转速的加倍的基础。
根据本发明的转速的加倍/提高选择成使得作为结构尺寸的其它影响量(例如齿模数)可被忽略。
行星式轧制挤压机的至今常见的转速一部分远低于上面列出的最大转速,大多在30与60Upm之间。在此,驱动器通常差不多设计到期望的转速上,使得利用现有的驱动器的提高转速有显著的限制。
在单螺杆挤压机和双螺杆挤压机中的已知的螺杆的转速可能比行星式轧制挤压机的转速高一些。虽然如此这些转速不能被用作对于行星式轧制挤压机的示范(Vorlage)。专业人员知道,行星式轧制挤压机既不能与单螺杆挤压机也不能与双螺杆挤压机相比。例如,在双螺杆挤压机中在两个螺杆之间仅存在对于材料的混合重要的材料揉捏件(Materialknet)。在带有例如12个行星心轴的行星式轧制挤压机中,24个材料揉捏件处在行星心轴与中央心轴之间以及在行星心轴与围绕的壳体之间。粗略地考虑,带有12个行星心轴的行星式轧制挤压机可提供如24个双螺杆挤压机那么多。此外,专业人员知道,围绕在包围的壳体中的中央心轴运转的行星心轴仅以其内齿部在中央心轴的齿部中和在壳体的齿部中来引导。与此相对,单螺杆可靠地保持在它的围绕的壳体和所属的轴承中。相应的适用于双螺杆挤压机的螺杆。专业人员须担心,围绕的行星心轴以其齿部在中央心轴的齿部中或在壳体齿部中的唯一的保持不适合于高转速。令人惊讶地,当可靠地提出行星式轧制挤压机的最少充填(Mindestfüllung)时,在超过迄今常见的最大转速时运行故障的风险不比在行星式轧制挤压机以较低转速的传统运行中大很多。最少充填应在超过传统的最大转速之后是6%、优选地12%、还进一步优选地18%且最高优选地24%。百分比数据涉及挤压机中的空腔体积。在此涉及壳内腔的未被安装部件(中央心轴、行星心轴、止推环和其它环形件)填充的体积。填充物是存在于壳体中的挤压物的一部分(例如:带有填料和其它添加剂的塑料)。在挤压运行期间的通常充填中,在各种情况下提供根据本发明所要求的最少充填。在设备空转时情况不同。空转在设备起动时和在停停止时发生。此外,空转在材料更换(例如:挤压物应另外来上色)时或者在清洁挤压机(例如:在运行结束时使熔融的塑料(其否则凝固并且使再起动极其困难)从挤压机中驶出)时发生。在清洁时此外使用净化剂/净化颗粒,以净化与挤压物相接触的面。根据本发明应:
在起动时在超过上面提及的通常的转速之前在行星式轧制挤压机中实现根据本发明的空腔的最少充填或
在停止时直至低于上面提及的通常的转速维持挤压机的根据本发明的最少充填或
在挤压机为了材料更换的空转之前实现转速降低到上面提及的通常的转速上并且在转速降低期间维持挤压机的最少充填度。
在挤压机中待处理的混合物经常仅经由上面所阐述的材料进入部被输入挤压机中。此外将混合成分以液态的或熔融的形式稍后输入挤压机中可以是有利的。这那么优选地经由布置在挤压机部段之间的注射环(Injektionsring)实现。在此,使用挤压机部段的通常的结构类型,在其中挤压机部段的壳体设有凸缘。在凸缘处使挤压机部段的壳体相互张紧。在此可将注射环定位在凸缘之间。注射环的精确的定心可同时由此来引起,即注射环完全或者部分地放入壳体端部中。优选地,注射环部分地放入两个相对而置的壳体端部中。由此,注射环选择性地同时可被用作定心环。当注射环同时形成对行星式轧制挤压机部段/模块的行星心轴的止推环并且/或者同时具有对于温度测量装置、优选地温度传感器和/或对于压力测量装置/压力测量传感器的接口时,通常是有利的。
只要在熔融物在行星式轧制挤压机中分散和均匀化之后需要除气,可以是有利的是使行星心轴在期望的除气的区域中设有较小的混合作用,以便给予气体从熔融物排出的更多和更好的机会。在行星式轧制挤压机中这可通过心轴数目的减少和/或通过行星心轴的特别的构造来引起。可考虑的特别的构造是减少在行星心轴处的齿数。
选择性地也可将用于除气的单螺杆挤压机部段/模块后置于在挤压设备中的行星式轧制挤压机模块。行星式轧制挤压机模块的中央心轴那么可作为单螺杆在后置的单螺杆挤压机模块中延续。
选择性地,还将挤压物输入到独立于转速地可由行星式轧制挤压机驱动的单螺杆挤压机中。该后置的单螺杆挤压机那么可以以较小的速度运行,使得挤压物在从设备排出之前可最佳地除气。
只要还在挤压设备的其它部位处、例如在充填部件处和/或在另一挤压机部段/模块处和/或在不同的挤压机部段/模块之间设置有除气部,所有的除气部位可共同地联接到气体清除部处。优选地,在气体清除部中存在泵,利用其可在除气管路中产生负压。在此有利的是加热所有的除气管路,由此除气管路未掺入由排出的气体携带的熔融物颗粒。
只要还在挤压设备的其它部位处,例如在充填部件处和/或在另一挤压机部段/模块处和/或在不同的挤压机部段/模块之间设置有除气部,可为此使用环形件,其如注射环那样具有多个功能。这包括作为止推环的和/或用于压力测量装置和/或用于温度测量装置的接口的和/或用于壳体的定心的功能。
根据本发明,为了提高转速优选地使用扭矩马达(Torquemotor)。扭矩马达是高极性的(hochpolig)、电气的直接驱动器。扭矩马达具有较大的转矩。这意味着取消传动装置。转速仅电气地来调节。高转矩对于行星式轧制挤压机、尤其对于较大结构尺寸和较重实施方案的行星式轧制挤压机是有利的。另一方面,这些马达比传统的马达体积更大。更多体积常常仅部分地通过取消本来常见的传动装置来补偿。相对于传统的马达对扭矩马达仅允许较小的效率。在此存在不同的观点,是否通过传动装置的取消和与此相联系的获得能量(其原本被传动装置消耗)来补偿功率损失。无论如何,总体上导致功率损失的观点相当占优势。该关于效率的讨论不推荐运用扭矩马达。
迄今,如果取决于高的行驶精度(Verfahrgenauigkeit),那么使用扭矩马达。能量消耗那么是次重要的。
对于行星式轧制挤压机,行驶精度在运行期间没有意义。
然而行驶精度在安装和拆卸或更换行星心轴时可以是非常有用的。利用精确的行驶路径,在移除止推环后可在没有通常的手动辅助的情况下使行星心轴部分地从壳体驶出,而不(如在其它的驱动器中那样)存在行星心轴冲出并且人员和设备受损失的风险。一旦行星心轴从壳体伸出足够远,可用手抓住行星心轴并且在壳体与中央心轴之间旋出。在安装时,该过程在相反的方向上进行并且得到相应的优点。
尽管如此扭矩马达迄今还未用于反正已复杂的行星式轧制挤压机。这可能在于没有认识到借助于扭矩马达可如何使行星心轴的安装和拆卸容易。
最终专业人员对于扭矩马达的费用退缩了。
用于扭矩马达的费用通常比传统驱动器的费用高1.5至2.5倍。
尽管如此本发明选择扭矩马达用于提高转速。
扭矩马达以不同的结构类型存在:
作为永磁激励的(无刷的)直流马达
作为联接的磁阻马达
作为异步马达
作为带有特别高的转矩的优点的外转子(定子在内部,转子在外部)
作为内转子(定子在外部,转子在内部)。
优选地,结构类型“外转子”应用于根据本发明的转速的提高。同样地,水冷却应用于这些马达。当行星式轧制挤压机同样具有水冷却(其那么可与马达冷却相联合)时,是有利的。
附图说明
在附图中示出本发明的实施例。其中:
图1显示了由文件DE 19721808已知的行星式轧制挤压机的结构,
图2显示了用于根据本发明的转速提高的结构。
具体实施方式
图1显示了带有延长的行星式轧制部件11和进入螺杆(Einlaufschnecke)1的挤压机。行星式轧制部件由三个带有共同的中央心轴9的行星式轧制挤压机模块组装而成。每个模块包括成管形的外部的壳体5,其在两端处具有凸缘6和7。在凸缘6和7处模块相互旋紧。在此,壳体5通过定心环来定心。定心环放入壳体凸缘的相应的凹口中。
属于每个行星式轧制挤压机模块的还有套。套处于壳体5内部。套在装配时被推入壳体中。这优选地在凸缘6和7旋紧前发生被推入。对此,定心环设有孔,其等同于壳体孔。
在套之间分别有止推环8。止推环将行星心轴10保持在其围绕共同的中央心轴9的运转位置中。在此,行星心轴在止推环处滑动。
中央心轴的尖部以12来表示并且与前面的止推环11相对应,止推环11具有与止推环8相同的功能并且此外形成缝隙,通过该缝隙在挤压机排出部的方向上按压挤压的材料。
为了止推环11的定心设置有特别的定心环,其与壳体5固定地连接。定心环一方面充填对于定心环确定的凸缘6中的凹口。另一方面,定心环在前侧形成附加的定心凸缘。
在右端处中央心轴9形成用于进入区的螺杆。在该区域中设置有单独的带有进入开口2的壳体1。壳体1如壳体5那样来构建。所属的凸缘以3和4来表示。凸缘4与最邻近的壳体5的端口凸缘(Anschlußflansch)7的共同作用与凸缘6和7的共同作用相同。在中央心轴的右部分处的充填螺杆(Füllschnecke)具有充填功能和塑化功能,但是不具有基本的分散功能和均匀化功能。分散和均匀化在后置的行星式轧制挤压机模块中实现。
行星式轧制挤压机模块的每个壳体5设有两个冷却区段/加热区段。螺旋形地在壳体内表面处伸延的通道(其经由接口可被供应有冷却/加热介质)属于其中一个区段。在壳体内表面处螺旋形地伸延的通道(其经由接口可被供应有冷却/加热介质)属于另一区段。
每个行星式轧制挤压机模块在实施例中是400mm长,从而产生1200mm的总长度。
两个行星式轧制挤压机模块以未示出的方式支撑成使得不存在对于运行重要的挠曲。
每个行星式轧制挤压机模块具有9个行星心轴。
根据图2,根据本发明的挤压机设备在实施例中同样具有三个行星式轧制挤压机部段/模块22、23、24。所有的部段/模块由共同的中央心轴如根据图1那样穿过,具有如根据图1那样的带有套、冷却部和内齿部的壳体和行星心轴(其如根据图1那样在壳体内部中且在中央心轴外部处运转)。部段/模块的壳体如根据图1那样设有凸缘,在其处将壳体相互张紧。
所有的部段/模块根据图2具有相应400mm的长度,使得对于这三个部段/模块得到1200mm的总长度。涉及带有70mm(壳体齿部的分度圆直径)的结构尺寸的部段/模块。在部段中的每个中行星心轴的数目为六个。在此,行星心轴中的一半具有比行星心轴中的另一半少20mm的长度。在实施例中,部段/模块22的行星心轴具有标准实施方案、也就是说齿部,其在整个心轴长度上延伸。在部段/模块23和24中的行星心轴具有作为刺猬(Igel)的实施方案。当行星心轴在达到标准实施方案后被设有附加的齿部(其横向于在标准实施方案中的齿部伸延)时,产生刺猬实施方案。在附加的齿部中将形成齿的槽加工、通常车削或铣削到根据标准齿部产生的齿中。附加的齿部的槽引起在形成齿的接片(其根据标准齿部保留)中的开口。由此在行星心轴处产生突起,其粗略地可被称为刺猬的刺。由此得出名称刺猬齿部。
部段/模块可在其它的实施方案中具有完全不同的长度。相同的适用于结构尺寸和行星心轴。
也可使用与其它心轴相比缺少一个齿或多个齿的心轴。这些心轴以下被称为TT心轴。
其它实施例还具有行星心轴同时
标准齿部和刺猬齿部或者
标准齿部和TT齿部或者
刺猬齿部和TT齿部。
在挤压物的通行方向上,充填部件21前置于行星式轧制挤压机部段/模块。充填部件具有单螺杆挤压机的结构类型。设置在其壳体中的螺杆优选地与用于行星式轧制挤压机部段/模块的中央心轴成一件式。在其它实施例中设置有多件式的中央心轴。多件式中央心轴的有利的实施方案设置有在中间延伸通过中央心轴的拉杆,在其上存在多个外啮合的套筒。这些套筒被与拉杆相互张紧。当这些套筒在撞击部位处相互啮合时,是有利的。这使套筒的张紧容易并且保证在张紧力太小的情况中套筒相互间不发生旋转。该结构形式允许更换单个的或多个的套筒(其遭受特别的磨损或者由于意外的情况受损坏)。其余的套筒保留。这降低了成本。这特别适用于复杂的啮合点的情况。在变换齿部时、例如在从正常齿部变换成刺猬齿部或成TT齿部时的啮合变复杂。
此外,该结构方式开辟了外啮合的、可推到拉杆上的且相互可张紧的中央心轴-套筒的有利的储存(Vorratshaltung)。套筒可选择性地匹配于所属的挤压机部段/模块。也就是说,套筒可具有与所属的模块相同的长度、比其更大的长度或更小的长度。套筒可多个补充成等于模块的长度的程度。
前面所说明的套筒技术还可包括挤压机的充填部件。充填部件用于将挤压物输入挤压机中。充填部件大多以单螺杆挤压机结构方式来设计。在将套筒技术应用到作为充填部件的单螺杆挤压机模块上时,一个或多个在拉杆上可与其它模块的其它套筒张紧的套筒属于充填部件。这些套筒在外部构造为螺杆。假如对于一个充填部件设置有多个套筒(其共同形成螺杆),则每个套筒在外面形成螺杆的一部分并且所有确定用于充填部件的套筒共同形成充填部件的螺杆。在此还引起上面根据套筒对于中央心轴所阐述的优点,即也使在齿部中的变换、例如齿深度的改变或在齿或者形成齿的接片之间的距离改变容易。这样的改变例如在体积扩大方面是有意义的,以便为除气提供框架条件。而体积减小的改变对于在充填部件中的压力提高是有意义的。
在另外的实施例中,单螺杆挤压机模块设置在挤压机的排出端处。当直到那时达到的熔融物压力不足以用于在挤压工具中的充足成型时,该模块用于提高排出压力。
充填部件21在实施例中具有漏斗,在其上布置有以重量分析的方式工作的配量装置(Dosierwerk)。
中央心轴/螺杆利用扭矩马达33来驱动。
在实施例中将粉末状的填料发出到充填部件21中。在充填部件21与行星式轧制挤压机部段22之间设置有注射环25。经由该环喷入熔融的塑料。必要的压力利用泵36来建立。熔融的塑料可被从储存容器/缓冲器抽出或者借助于侧臂挤压机(Seitenarmextruder)由塑料颗粒来产生。在此,颗粒可以是复合物并且包含多个成分。除塑料之外所设置的材料但是也可与塑料颗粒一起被发出到侧臂挤压机中,以便在那里被加工成熔融的混合物。
在一方面行星式轧制挤压机部段/模块22和23与另一方面23和24之间同样设置有环形件26、27。在实施例中环形件26、27用于压力测量和温度测量。所属的装置以28和29来表示。
在行星式轧制挤压机部段/模块中,使混合成分分散到彼此中并且均匀化。在此,中央心轴在运行期间以500或800Upm旋转。这引起混合成分最细地分布到彼此中。
将熔融物从行星式轧制挤压机部段/模块24递送到除气式挤压机37中,其构造为单螺杆挤压机并且独立于转速地由行星式轧制挤压机部段/模块来驱动。在此,所属的单螺杆的转速被降低成使得包含的气体有利地可漏出并且借助于抽吸泵和抽吸管路42可被抽出。紧接着除气,又充分地提高压力,以便通过喷嘴39将熔融物从挤压机37排出。在排出部处设置有温度和压力测量装置43。
此外,在行星式轧制挤压机部段/模块24处的另一除气可能性以虚线示出并且以40来表示。此外,行星式轧制挤压机部段/模块24示出用于附加的侧向的材料输入的可选择性地使用的接口41。
挤压机设备设有冷却设备,其由元件30、31、32、34、38构成并且允许在行星式轧制挤压机部段/模块和充填部件、马达以及排出侧的单螺杆中的独立的温度控制(Temperaturführung)。

Claims (15)

1. 一种具有带有中央心轴、行星心轴和内啮合的壳体套或内啮合的壳体的行星式轧制挤压机或行星式轧制挤压机部段或行星式轧制挤压机模块的挤压设备,其中,所述行星心轴(20)以在熔融物流的方向上在前面的端面在止推环(23)处滑动并且在此围绕所述中央心轴且在包围的所述壳体中运转,并且其中,所述行星心轴(20)的齿部同时与所述中央心轴的齿部和所述壳体的内齿部啮合,
其特征在于,所述中央心轴根据以mm为单位的结构尺寸至少以下面的以Upm为单位的转速来运动:
70 mm   440  Upm
100 mm   440
120 mm   440
150 mm   230
180 mm   160
200 mm   160
250 mm   160
280 mm   160
300 mm   160
400 mm   160
500 mm   160。
2. 根据权利要求1所述的挤压设备,其特征在于,所述中央心轴根据以mm为单位的结构尺寸至少以下面的以Upm为单位的转速来运动:
70 mm   660  Upm
100 mm   660
120 mm   660
150 mm   345
180 mm   240
200 mm   240
250 mm   240
280 mm   240
300 mm   240
400 mm   240
500 mm   240。
3. 根据权利要求2所述的挤压设备,其特征在于,所述中央心轴根据以mm为单位的结构尺寸至少以下面的以Upm为单位的转速来运动:
70 mm   880  Upm
100 mm   880
120 mm   880
150 mm   460
180 mm   320
200 mm   320
250 mm   320
280 mm   320
300 mm   320
400 mm   320
500 mm   320。
4. 根据权利要求3所述的挤压设备,其特征在于,所述中央心轴根据以mm为单位的结构尺寸至少以下面的以Upm为单位的转速来运动:
70 mm   1100  Upm
100 mm   1100
120 mm   1100
150 mm   575
180 mm   400
200 mm   400
250 mm   400
280 mm   400
300 mm   400
400 mm   400
500 mm   400。
5. 根据权利要求4所述的挤压设备,其特征在于,所述中央心轴根据以mm为单位的结构尺寸至少以下面的以Upm为单位的转速来运动:
70 mm   1320  Upm
100 mm   1320
120 mm   1320
150 mm   690
180 mm   480
200 mm   480
250 mm   480
280 mm   480
300 mm   480
400 mm   480
500 mm   480。
6. 根据权利要求5所述的挤压设备,其特征在于,所述中央心轴根据以mm为单位的结构尺寸至少以下面的以Upm为单位的转速来运动:
70 mm   1560  Upm
100 mm   1560
120 mm   1560
150 mm   805
180 mm   560
200 mm   560
250 mm   560
280 mm   560
300 mm   560
400 mm   560
500 mm   560。
7. 根据权利要求1至6中任一项所述的挤压设备,其特征在于,在中央心轴的根据以mm为单位的结构尺寸的以下的以Upm为单位的最小转速中:
70 mm   220  Upm
100 mm   220
120 mm   220
150 mm   115
180 mm   80
200 mm   80
250 mm   80
280 mm   80
300 mm   80
400 mm   80
500 mm   80
遵循6%的、优选地12%的、还进一步优选地18%的且最高优选地24%的最少充填。
8. 根据权利要求1至7中任一项所述的挤压设备,其特征在于后置的除气式挤压机、优选地构造为单螺杆挤压机的除气式挤压机,其带有驱动器,所述驱动器在转速上独立于所述行星式轧制挤压机的驱动器。
9. 根据权利要求1至8中任一项所述的挤压设备,其特征在于扭矩马达用作驱动器。
10. 根据权利要求9所述的挤压设备,其特征在于带有外转子的扭矩马达。
11. 根据权利要求9或10所述的挤压设备,其特征在于带有水冷却的扭矩马达。
12. 根据权利要求9至11中任一项所述的挤压设备,其特征在于所述扭矩马达的冷却联接到与所述行星式轧制挤压机部段和/或与挤压机设备的其它部件共同的冷却设备处。
13. 根据权利要求1至12中任一项所述的挤压设备,其特征在于运用于食品。
14. 根据权利要求1至12中任一项所述的挤压设备,其特征在于运用于化学反应对象的混合或运用于反应辅助剂的混入。
15. 根据权利要求1至12中任一项所述的挤压设备,其特征在于运用于颜料的制造。
CN201280031387.6A 2012-04-26 2012-12-21 带有行星心轴和止推环的行星式轧制挤压机 Pending CN103781613A (zh)

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