• 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:
    A method for monitoring deviations in the dimensions of profile strips during production is disclosed, as is an apparatus suitable for carrying out the method. The profile strip is formed from one or more rubber or thermoplastic material mixtures which are fed from one or more extrusion devices through nozzles into a common nozzle in an extrusion head. Pressure and temperature measuring means measure the extrusion pressure and temperature of each mixture. The profile strip thus produced then passes over weighing device which measures its weight per unit length. The measured value is transmitted to a regulating or control device and compared with a desired weight per unit length. When a deviation is ascertained, the regulation or control device which is also operatively connected to the pressure and temperature means and to adjustable drives for each extrusion device, compared the measured extrusion pressure and temperature values with desired values and adjusts the drive of one or more of the extrusion devices to cause the measured pressure and temperature values, and hence the measured weight per unit length, to be restored to their desired values.
    公开号:SU1382398A3
    申请号:SU853948855
    申请日:1985-09-04
    公开日:1988-03-15
    发明作者:Капеме Герд
    申请人:Херманн Бершторфф Машиненбау Гмбх (Фирма)；
    IPC主号:
    专利说明:


    sn
    The invention relates to which tire industry and can be used to make tire treads.
    The purpose of the invention is to improve the quality of the obtained profile tape from rubber or thermoplastic synthetic material by preventing the formation of defective profile tape.
    The drawing shows schematically an apparatus for controlling the size of a continuously extruded rubber or thermoplastic synthetic material consisting of one or several mixtures of a continuously extruded profile tape.
    The control method involves the extrusion of each mixture with an adjustable feed rate into the common nozzle for extruding the profile tape while simultaneously measuring separately the values of the pressure and extrusion temperature of the mixtures and continuously measuring the weight of the extruded profile tape per unit length. The measured mass value of the extruded profile tape per unit length is constantly compared with the set value of the linear mass. When the measured mass of the extruded profile tape deviates from the target mass, the corresponding values of the pressure and / or temperature of the mixtures are monitored. When deviations from the corresponding setpoint change, the feed rate of the corresponding mixture is changed in the direction of reaching the target value of the pressure and / or temperature of the mixture. The method of control can be implemented with the help of the control device.
    The control unit comprises a common nozzle 1 for extruding a profile tape with working channels 2, 3 and 4 therein and sensors 5, 6 and 7 installed at the inputs of working channels 2, 3 and 4 for measuring pressure and extrusion temperature, respectively. The control unit comprises one or more extruders 8, 9 and 10 with devices 11, 12 and 13 for adjusting the speed of rotation of the screws (not shown) extruder; 8, 9, and 10 and output nozzles 14, 15, and -16, respectively,
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    to communicate extruders 8, 9, 10 with working channels 2,3, 4, respectively, common sogsha 1. Control unit contains scales 17 for measuring the mass of extruded profile tape, associated with common nozzles 1. Setup unit for control contains connected with devices 11,12,13 for adjusting the rotational speed of the screws of the extruders 8.9 and 10 regulator 18 with a microprocessor to control it are not shown). The regulator 18 is connected, on the one hand, with weights 17 for measuring the linear mass of the extruded profile tape and, on the other hand, with sensors

    -5.6.7 for measuring pressure and / or extrusion temperature.
    Installation for control works as follows.
    A continuously extruded profile tape 19, for example, for the protectors from working channels 2, 3 and 4, the common floor passes through the weights 17 to measure the linear mass. The deviation of the altered weight value

    the extruded profile tape 19 per unit length from the specified value of running Maycti (from the specified tape weight per each meter) is set by the regulator 18. Too small a running weight of the extruded pro5 File Tape 19 (weight per unit length) indicates that that out of one or more working channels 2, 3 and 4 of the common nozzle 1, too little material is extruded.
    0 If the regulator 18 sets a small value of the linear mass of the extruded profile tape 19 by means of a slip, then the regulator 18 immediately controls the corresponding values
    5 indicators of pressure and / or temperature in separate working channels 2, 3 and 4. If the value of pressure in working channel 2 has decreased, i.e. below this value. This may be a sign that the extruder 8 feeds slightly less material than specified, so that the extruded profile tape 19, consisting of all three mixtures, will be easier. However, the value of the temperature indicators should be fixed simultaneously, Since, for example, as the temperature rises, the viscosity of the material decreases, i.e. material will be more
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    fluid, as a result of which the value of the measured pressure of the material is reduced without reducing the volume of the material supply. However, the scale 17 for measuring the linear mass of the extruded profile tape 19 will not fix any changes. But if the read pressure decreases without increasing the temperature, then this is a sign that the amount of material fed through the extruder 8 has decreased. If the readings of both pressure and temperature decrease to a predetermined degree and these values are fixed by the controller 18, then the device 11 is controlled to control the speed of the rotation of the auger of the extruder 8, respectively. The corresponding measured values of pressure and temperature are averaged by regulator 18, so that both values are taken into account by regulator 18 for process control (regulator 18 is associated with a microprocessor) with corresponding parts. The linear mass of the extruded profile tape 19 is reduced by that proportion of the material that was not fed through the extruder 8. Based on the established small value of the linear mass of the extruded profile tape 19, on the one hand, and on the basis of too low values of pressure indicators and the temperature measured by the sensor 5 installed at the inlet of the working channel 2 of the extruder 8, on the other hand, the controller 18 increases the speed of rotation of the screw of the extruder 8 (for example, 1.5 turns), so that the extruder 8 will not again how much increased production until the specified values of pressure and temperature in the working channel 2 and thus the specified value of the linear mass of the extruded profile tape 19 are restored. After the weights 17 for measuring the linear mass, the extruded profile tape 19 falls on the shrinkage area (not shown), made in the form of two obliquely located roller sections. In the course of the subsequent process, an extruded profile strip 19 is supplied to the cooling section and finally to the cutting device for measuring lengths (not shown).
    权利要求:
    Claims (2)
    [1]
    1. A monitoring method consisting of one or
    mixtures of continuously extruded rubber-strip or thermoplastic synthetic material, including extruding each mixture with a controlled feed rate into a common nozzle for extruding the profile tape while simultaneously measuring the pressure and temperature values of the mixture’s extrusion separately; - a bath of pro-tape per unit length, distinguished by the fact that, in order to improve the quality of the resulting profile tape from rubber or thermoplastic of a synthetic material by preventing the formation of a defective profile tape, constantly compare the measured value of the mass of an extruded profile tape per unit of length with the specified value of the linear mass, with deviations of the measured value of the linear mass extruded
    f
    The corresponding profile values of the pressure and / or temperature of the mixtures are controlled by the profile profile bath from the 3-adherence value of the mass per unit and the deviation of the corresponding mixture in the direction of the achievement of the preset value of the pressure indicators and / or the temperature of the mixture is changed.
    [2]
    2. Installation for the control strip for dimensions consisting of one or several mixtures of an uninterruptedly extruded profile tape of rubber or thermoplastic synthetic material, containing a common nozzle for inserting the profile tape with working channels formed in it and installed at the inputs of the working channels sensors for measuring the pressure and temperature of extrusion; one or several extruders with devices for controlling the speed of rotation of the screws of the extruders and output nozzles for combining the extruders with common nozzle working channels, scales for measuring the mass per unit of extruded profile tape associated with a common nozzle.
    connected to devices for regulating; speed of rotation of screws of extruders; regulator with a microprocessor to control it, characterized in that, in order to control the quality of the resulting profile tape from rubber or thermoplastic synthetic material, by preventing formation of a defective profile tape, the torus is connected on one side with weights to measure the linear mass of the extruded profile tape, and on the other hand with sensors to measure the pressure and / or extrusion temperature.
    17
    类似技术:
    公开号 | 公开日 | 专利标题
    US4233255A|1980-11-11|Method for controlling the thickness or weight of extruded stock
    US4515738A|1985-05-07|Method of monitoring the production of extruded profiles and an apparatus incorporating means for effecting such monitoring
    SU1428185A3|1988-09-30|Method and apparatus for checking process of manufacturing elongated profiles consisting of one or several mixtures of rubber or thermoplastic synthetic material
    US4744930A|1988-05-17|Extrusion control
    US4425289A|1984-01-10|Method of producing an extrudate having controlled shape and size
    CA1090904A|1980-12-02|Method and apparatus for controlling the thickness ofextruded stock
    WO1980002006A1|1980-10-02|Method and apparatus to control the density of foamed products produced from an extrusion process
    CA1147922A|1983-06-14|Method of extruding and shapingthermoplastic material
    US20040032040A1|2004-02-19|Plastics extruder dimension and viscosity control system and method
    GB1581450A|1980-12-17|Manufacture of extruded plastics products
    US4428896A|1984-01-31|Method of producing an extrudate of controlled size and shape from a roller die
    US4844846A|1989-07-04|Method and apparatus for controlling the weight per unit length of a continuous extrudate
    SU1382398A3|1988-03-15|Method and apparatus for checking sizes of continuously extruded profiled band consisting of one or several mixtures of caoutchouc or thermoplastic synthetic material
    US4449395A|1984-05-22|Pheological measurement method and apparatus
    US3543333A|1970-12-01|Manufacture of synthetic resin rails
    US3930774A|1976-01-06|Extruder controller
    EP0380499B1|1993-07-14|A method for controlling some parameters in connection with manufacturing of plastic articles
    SU1516372A1|1989-10-23|Apparatus for manufacturing tyres by winding narrow strips
    CN101583477B|2012-04-25|Method for the operation of a production plant to produce an extrudate
    JP2681090B2|1997-11-19|Speed control method of gear pump in extrusion molding apparatus
    JPS62246713A|1987-10-27|Controlling film thickness in apparatus for manufacturing synthetic resin film
    SU542652A1|1977-01-15|Device for the production of plastic sheets
    Capelle1986|A Method and Apparatus for Monitoring Deviations in the Dimensions of a Continuously Extruded Profile Strip
    SU1757904A1|1992-08-30|Method and device for regulating cord rubberization
    SU622684A1|1978-07-20|Apparatus for profiling extruded rubber band
    同族专利:
    公开号 | 公开日
    IT1200720B|1989-01-27|
    ATA258785A|1995-08-15|
    US4728278A|1988-03-01|
    IT8521982D0|1985-08-23|
    FR2570642A1|1986-03-28|
    GB2166568A|1986-05-08|
    FR2570642B1|1989-03-03|
    US4680152A|1987-07-14|
    GB2166568B|1987-12-31|
    SE8504366D0|1985-09-20|
    SE8504366L|1986-03-23|
    GB8521149D0|1985-10-02|
    NL8502376A|1986-04-16|
    JPH0474173B2|1992-11-25|
    JPS6179616A|1986-04-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2382177A|1941-10-15|1945-08-14|Goodrich Co B F|Apparatus for making composite strips|
    DE2201631C3|1972-01-14|1979-05-03|Paul Troester Maschinenfabrik, 3000 Hannover|Extrusion head for the production of flat profiles from two different mixtures|
    US4038531A|1976-05-18|1977-07-26|Weyerhaeuser Company|Process control apparatus for controlling a particleboard manufacturing system|
    DE2700003A1|1977-01-03|1978-07-06|Reifenhaeuser Kg|PLANT FOR THE PRODUCTION OF EXTRUDED PROFILES|
    DE2723130A1|1977-05-23|1978-12-07|Bellaplast Gmbh|Close control of thermoplastics extruder - in which pressure between screw and nozzle is kept constant by automatically operated regulator|
    US4097566A|1977-06-01|1978-06-27|Nucleonics Data Systems|Extrusion line control system|
    US4233255A|1978-11-29|1980-11-11|Measurex Corporation|Method for controlling the thickness or weight of extruded stock|
    JPS5628841A|1979-08-17|1981-03-23|Oyama Kagaku Kk|Device for holding uniform discharge volume in injection molding machine|
    DE3036102A1|1980-09-25|1982-04-29|Paul Troester Maschinenfabrik, 3000 Hannover|DEVICE FOR THE EXTRUSION OF STRINGS OF RUBBER AND / OR PLASTIC ELASTOMERS|
    US4428896A|1982-08-30|1984-01-31|The General Tire & Rubber Company|Method of producing an extrudate of controlled size and shape from a roller die|
    US4425289A|1982-08-30|1984-01-10|The General Tire & Rubber Company|Method of producing an extrudate having controlled shape and size|
    JPS5998829A|1982-11-30|1984-06-07|Mitsubishi Heavy Ind Ltd|Control of amount of extrusion of extruder|
    DE3315184C1|1983-04-27|1984-06-28|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Method and extrusion device for monitoring the production of profiles from one or more rubber or plastic mixtures|DE3526050C2|1985-07-20|1994-11-17|Krupp Ag Hoesch Krupp|Process for operating an extruder|
    DE3534770C1|1985-09-30|1986-11-13|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Method and arrangement for starting up a multiple extrusion press with little loss of material in order to produce profile sections made of different rubber or plastic mixtures, for example for treads or side strips of vehicle tires|
    US5128077A|1991-02-12|1992-07-07|General Tire, Inc.|Method for producing multicomponent extrusions having controlled component contributions|
    US5527499A|1995-01-31|1996-06-18|Bridgestone/Firestone, Inc.|Extrusion apparatus and method with pressure equalization|
    DE102004011670A1|2003-03-17|2004-09-30|Sumitomo Chemical Co., Ltd.|Process for the production of a thermoplastic elastomer composition|
    EP2159034B1|2007-06-27|2018-08-29|Sekisui Chemical Co., Ltd.|Apparatus and method for manufacturing multiplex interlayer for safety glass|
    JP6392638B2|2014-11-14|2018-09-19|東洋ゴム工業株式会社|Rubber extrusion molding apparatus and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3434903|1984-09-22|
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