• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Es wird eine Verbesserung an einer Einrichtung zum Messen des Massedruckes in einem Zweischneckenextruder aufgezeigt, bei der als Verformungselemente für die Rückleitung des Axial­rückdruckes der Schnecken zum Extrudergehäuse Zuganker mit darauf befestigten Halbleiter-Dehnungsmeßstreifen eingesetzt werden.
    公开号:SU1718736A3
    申请号:SU874202568
    申请日:1987-05-19
    公开日:1992-03-07
    发明作者:Хшаники Зигфрид
    申请人:Херманн Бершторфф Машиненбау Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to measuring technique and is intended for measuring mass pressure in a twin-screw extruder.
    The purpose of the invention is to simplify the design.
    The drawing shows the proposed device.
    The device comprises output shafts 1 of two extruder screwed meshes (not shown) installed in backpressure support units 2.
    Using the cover with flanges 3, the connecting flange 4 of the casing (not shown) of the extruder is closed.
    In the housing 5 in the wall 6 there is a support flange 7 for receiving the coupling bolts 8. The opposite ends of the coupling bolts with the help of nuts 9 are screwed to the cover with flanges 3.
    On the tie bolts 8 are semiconductor strain gauge sensors 10, which are calibrated according to the diameter and material property of the tie bolts and are connected to the measuring device 11.
    Using a measuring device to which an indicator device is connected, for example, a voltmeter 12, measured values are determined and displayed.
    The effect of pressure Fa on the output shaft 1 is distributed according to the arrows shown, then through the support nodes 2 back pressure on the support flange 7, the coupling bolts 8 and the cover with flanges 3.
    The clamping bolts 8 made as a plastic element undergo a certain expansion depending on the magnitude of the reaction force, which 5 is accurately measured with the help of strain gauges 10 and is shown in the metering and indication device 1.
    Based on this value, countermeasures can then be introduced, for example, more than 10 strong heating of the extruder barrel to reduce the viscosity of the thermoplastic material and reduce the pressure or back pressure in the extruder barrel.
    For safety reasons, the measurement and indication device may be connected to the transmission deactivation device.
    权利要求:
    Claims (1)
    [1]
    Claim
    20 A device for measuring mass pressure in a twin-screw extruder, comprising a housing with two coaxial flanges connected by a threaded connection, an element sensitive to axial counterpressure 25 n.i. augers with strain gauges placed on its surface connected to an indicator, characterized in that, in order to simplify the design , threaded connection elements made in the form of clamping bolts for reverse transmission of axial counterpressure are used as the axial counter-pressure sensitive screw of the screw 30 the extruder screw to the housing 35 or to a flange.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1718736A3|1992-03-07|Device for measuring pressure in two-screw extruder
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    US5325716A|1994-07-05|Apparatus for determining the pressure distribution along a limited distance and method for manufacturing it
    US2747408A|1956-05-29|Electrical pressure cell transducer
    ES2008358A6|1989-07-16|Monitoring fluid pressure in a flexible pipe
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    US5020372A|1991-06-04|Pressure measurement devices
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    CN2166433Y|1994-05-25|Thermal loading measuring probe for water cooling system of blast furnace
    US3116631A|1964-01-07|Apparatus for measuring viscosity of thermoplastics
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    KR890000578Y1|1989-03-11|Load cell
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    Watters1971|The behavior of PVC pipe under the action of water hammer pressure waves
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    Molinar et al.1998|Pressure transducer for pressure measurements in liquids up to 0.5 GPa
    同族专利:
    公开号 | 公开日
    EP0248153A3|1988-07-27|
    EP0248153A2|1987-12-09|
    DE3617380C1|1987-07-02|
    CN1011619B|1991-02-13|
    US4768389A|1988-09-06|
    CN87102977A|1987-12-02|
    JPS62297132A|1987-12-24|
    JPH0692110B2|1994-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE288506C|
    DE7241371U|1974-02-28|Cincinnati Milacron Inc|Screw press with a strain gauge device for measuring the axial pressure exerted on the plasticizing screw|
    US2802361A|1954-12-27|1957-08-13|Modern Plastic Machinery Corp|Means to indicate the thrust in a revolving shaft in machinery|
    DE1063830B|1958-12-04|1959-08-20|Weser Ag|Method and device for measuring thrust forces|
    US4089216A|1976-06-14|1978-05-16|Ex-Cell-O Corporation|Load measurement device|
    DE2648192C2|1976-10-25|1985-08-01|Wolfhard Dipl.-Ing. 6108 Weiterstadt Sack|Device for measuring and / or monitoring the axial force on a tool spindle|IT1197790B|1986-07-21|1988-12-06|Venturino Gianfranco Gse|DIRECT CURRENT MOTOR POWER SUPPLY DRIVE WITH INTRINSIC FEEDBACK|
    DE3842630A1|1988-12-17|1990-06-21|Haendle Gmbh Masch Anlagenbau|SPRAYING OR PRESSING TOOL|
    JPH0754831Y2|1990-11-15|1995-12-18|株式会社アーレスティ|Pin type load sensor for pressure molding machine|
    US5529566A|1990-12-11|1996-06-25|Weil; Hans A.|Method for controlling a solid-shell centrifuge|
    DK0868215T3|1995-12-01|2002-05-06|Baker Hughes Inc|Method and apparatus for controlling and monitoring a continuous supply centrifuge|
    EP1937989B8|2005-10-12|2013-05-29|Aktiebolaget SKF|Bearing assembly with a strain sensor|
    DE112006003783T5|2006-03-03|2009-04-02|Flowserve Management Co., Irvin|Method and device for load measurement|
    CN102589774B|2011-12-21|2013-12-04|山东科技大学|Anchoring interface stress testing device and testing method thereof|
    JP6029576B2|2013-12-20|2016-11-24|株式会社神戸製鋼所|Thrust load measuring device applied to the rotor of a closed kneader|
    JP6013314B2|2013-12-20|2016-10-25|株式会社神戸製鋼所|Calibration method for thrust load measuring device of closed kneader|
    CN104723600B|2015-03-16|2016-03-02|武汉轻工大学|A kind of thorax internal stress method of testing of 2 screw oil expeller|
    CN108097372A|2018-01-30|2018-06-01|中国矿业大学|A kind of ring gear adjustable crusher experimental test platform|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3617380A|DE3617380C1|1986-05-23|1986-05-23|Device for measuring the mass pressure in a twin-screw extruder|
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