• 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:
    An apparatus for producing profiles or webs such as tread strips for vehicle tires from suitable materials, comprises, in sequence, a screw extruder, an extrusion head and a rotatable roller. The roller is disposed in such a manner that the screw can be removed over the roller without interfering with the roller. To achieve this, the head comprises an upper and a lower portion, the upper portion being pivotable so that it can be moved out of the path of the screw when this latter is removed. The pivot points for the upper portion of the head are on lateral walls. The upper portion of the head is also lockable in its working position, the head portion facing the roller being spaced from the surface of the roller.
    公开号:SU1386021A3
    申请号:SU853903998
    申请日:1985-06-06
    公开日:1988-03-30
    发明作者:Андерс Дитмар
    申请人:Херманн Бершторфф Машиненбау Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of polymers in products and can be used in the chemical industry, in the automotive industry.
    The purpose of the invention is to simplify the maintenance of the device and facilitate the cleaning process of the extruder barrel.
    Fig. I shows the device, a longitudinal section; figure 2 - section aa in figure 1.
    The device comprises a housing 1 located at the exit from the horizontal opening 2 of the cylinder 3 of the extruder a material profiling nozzle, the output of which is limited by a part of the housing 1 with an interchangeable profile plate 4 and a horizontal roller 5 mounted in supports 6 rotatably and located transversely nozzle outlet. On the housing 1, a head of the upper 7 and lower 8 parts is installed, with the upper part 7 of the head mounted on the case i hinged by means of a hinge 9 and provided for its rotation relative to the upper working surface of the lower part 8 of the head with 1 O hydraulic cylinders having a mounting point 11 on the upper part 7 of the head and point 12 of the attachment on the side parts 13 or 14 of the housing 1. The head is provided with clamps of its working position in the form of wedges 15 and 16 installed in the upper part 7 connected to the hydraulic or pneumatic cylinders 17, 18 of their movement for zah and the apertures 19, 20 in the side portions 14, 13 of the housing. The hydraulic cylinders (or pneumatic) 17, 18 are connected to the support plate 21, and the wedges 15, 16 and the holes 19, 20 are made conical. The supports 6 of the roll 5 are fixed on the lower part 8 of the head with the possibility of placing the upper zone of the surface of the roll 5 and the upper working surface of the lower part 8 of the head below the horizontal plane B tangent to the lower part of the aperture 2 of the cylinder 3 of the extruder, with the lower 8 and the upper 7 of the head, facing the roll 5 are located at a distance from the surface of the roll 5 with the possibility of forming working gaps 22 therewith.
    With the help of the hydraulic cylinder 23 and the holders 24 connected with it, the interchangeable profile plate 4, the pressure gauge 25 and the control device 26 are securely fixed in their position

    5 0 5 30 s 0 5
    0
    five
    sirut pressure in the channel 27 of the head. A screw 28 is located in the cylinder 3 of the extruder. A knife 29 and a drive cutting roller 30 are mounted behind the roller 5. The width of the outgoing web is read by diodes 31.
    The device works as follows.
    The head is released due to the fact that wedges 15 and 16 are pulled out of the side parts 13 and 14 first. Then the hydraulic cylinder 10 is turned on and the top part 7 of the head is raised, turning around the hinge 9. After that, you can clean the head without additional precautions. change the inserts through which the outflow of material occurs, or the profile plates and remove the extruder cheeks 28, as well as replace it. Upon completion of these works, the upper part 7 of the head is again lowered by means of hydraulic cylinders 10 of double action and fixed by inserting wedges 15 and 16 into openings 19 and 20 of housing 1, thereby ensuring balanced fixation of the head.
    By making a gap between the parts of the head facing to the roll 5 and the surface of the roll 5, for example, in the region 50-500, the output width of the profile or material web is well maintained in a narrow tolerance zone, after which the device is once adjusted in terms of the extruder pressure vania and roll speed 5.
    If now this state is fixed by additional control devices and the corresponding adjustment operations are carried out, then the head can function automatically. At the same time in the channel 27 for the flow of mass, material pressures of up to 250 bar occur, recorded with a pressure gauge 25 and recorded by a control device 26.
    The control device 26, depending on the measured pressure value, acts on (not shown in graphic materials) drive 5 so that, at a pressure higher than the previously established, the drive 5 5 slightly (or accordingly) increases the peripheral speed of the roll 5 ( up to 2%) so that more material comes out of channel 27 of the head, so that the width
    profile or tape, reducing, reaches the set width,
    An exact (up to a millimeter) width of the profile 32 is achieved with an edge trimming device consisting of a cutting knife 29 and a power cutting roller 30. The cutting knives are set so that they can also be cut at an inclination direction.
    Alternatively, the control device 26, in accordance with the measured value of pressure in the head channel 27, may act on the screw actuator 28, which is not shown, so that if a certain pressure value is exceeded, the speed of the screw 28 will decrease slightly (for example, to 2%), thereby decreasing accordingly feed to extruder. In this connection, the pressure in the channel 27 of the head drops, and the width of the profile 32 emerging from the head becomes insignificant even at the same peripheral speed of the roll 5, i.e. also the mass of the cut edges is reduced
    Thus, by fixing the pressure with the help of a manometer 25 and influencing the circumferential speed of the roll 5 or on the speed of the screw 28, it is possible that: the head parts can be installed with a small clearance in relation to the roll 5 without the fact that both nodes must have a pre-tension in relation to each other; the problems of pressure or wear plates (wear on the plate and on the rotating roller) are completely eliminated; no material is collected between the pressure plate and the surface of the roll 5, it is not thermally overloaded and does not cause any contamination, i.e. there is no need for lateral limiting plates.
    Alternatively, the width of the exit web 32 on either side can also be read by photodiodes 31. As the web or profile width increases, the control device 26 to which the photo diodes 31 are connected also affects the peripheral speed of the roll 5 and / or the speed of the screw 28.
    Thus, installing a horizontal, transversely located roll head slightly below the lowest line of the horizontal opening 2 of the cylinder 3 of the extruder, in which the transporting screw 28 is installed, allows the screw 28 to be pulled out of the cylinder 3 of the extruder after the upper part 7 of the head is shifted up, to allow thorough cleaning or replacement of the screw 28. For this, the roller 5 located in front of the head may remain unchanged, because the screw 28 may lead Above it The compact design of the device is facilitated by the fact that the hinges 9 for the upper part 7 of the head and also the hydraulic cylinder IO for turning are mounted on the upper part of the head or the side parts of housing 1, and not on the flange of the cylinder 3 of the extruder according to the technical level. Due to this, the head can be made very compact and can be flanged to any extruder without any special measures on the extruder itself.
    According to the invention, the hinged upper part 7 is fixed by mounting a wedge locking device on the upper part 7 of the head, which is operated hydraulically or pneumatically, which winds two conical wedge-shaped wedges 15, 16, respectively, right and left outward into the wavy conical holes in the side parts of the housing 1, moreover, due to the taper of the wedges 15, 16 and the openings, the upper part 7 of the head with a high pressure is adjacent to the lower part 8 of the head and is very well sealed.
    Such fixation of the head parts in the working position requires little space and thereby ensures a compact design of the device.
    The compactness of the device is ensured by the fact that the roller 3, located transversely in front of the head, is attached to the side parts of the housing 1. This achieves, in particular, an exact conjugation of the housing 1 and the outer surface of the roller 5, which, moreover, at any time to be exactly repeated (for example, in the case of replacement of the case), while the upper part 7 of the head is pressed to the bottom part 8 of the head due to the wedge fixation.
    Installing the head portion facing the roll 5 at some distance from the surface of the roll 5 leads to the fact that the output width of the profile or web can be stored in relatively precise tolerance areas, since the device was once adjusted in terms of pressure extrusion and relative to the peripheral speed of the roll 5.
    Additional to the location of the head part facing the roll 5, at some distance from the roll 5, measuring the extrusion pressure in the head and adjusting the output width of the profile or blade from the head with a control device acting on the peripheral speed of the roll 5 or on the revolutions of the screw 28 of the extruder, provide better results. For example, the pressure of the material in the head is measured and, in accordance with this value, the peripheral speed of the roll 5 and / or the speed of the screw 28 is influenced by the control device 26.
    Alternatively, a profile edge or web 5 may be probed using photodiodes 3 and the measurement values transmitted to a control device 26J which then controls the peripheral speed of the roll 5 and / or the speed of the auger 28, respectively,
    Thus, if by increasing the peripheral speed of the roll 5 from the exit slit of the nozzle (which is limited at the bottom by the roll 5, and at the top by the plate 4) more material comes out, the extruded web or profile also becomes narrower or slower 5, Then the tape or profile becomes wider.
    Therefore, the additional installation of the control device 26 in combination with the profile plates 4 for different values of the output head width allows each profile width or web width to be automatically adjusted only by appropriately controlling the peripheral speed of the roll 5 or the auger speed 28 (i.e. from extruder mass) depending on the pressure of the material in the die or the 31 extruder widths obtained using photodiodes


    ABOUT
    d c
    Q
    five
    five
    material without the use of side stops.
    权利要求:
    Claims (1)
    [1]
    The use of the invention allows to obtain a compact device with a single-roll head, which provides good performance during operation, for example, in terms of leaks and accuracy of the profile or extruded sheet. In addition, the maintenance of the device is facilitated because part of the head can be removed very quickly (opening the side wedge clamps and lifting the upper part of the head, thanks to which the head cleaning and changing of the head are much easier. Formula of the invention
    Device for the manufacture of treads for car tires or other profiles or cloths of rubber, elastomers or thermoplastics,
    containing casing located at the exit from the horizontal bore of the extruder cylinder a nozzle for profiling material whose exit is limited by a part of the casing with an interchangeable profile plate and a horizontal roller, mounted in supports with possible rotation and positioned transversely at the nozzle outlet, the head from the upper and lower parts The upper part of the head is pivotally mounted on the housing and provided for its rotation relative to the upper working surface of the lower part of the head by hydraulic cylinders, the attachment points which are located on the side of the body and the upper part of the head, and the clamps of the working position of the head in the form of wedges installed in the upper part of the head, connected to their hydraulic or pneumatic cylinders for moving into the holes in the side of the body, simplify the maintenance of the device and facilitate the cleaning process of the extruder cylinder; the roll supports are fixed on the lower part of the head with the possibility of placing the upper surface area of the roll and the upper working surface of the lower part of the heads ki below the horizontal plane tangential to the lower part of the hole of the extruder cylinder; the lower and upper parts of the head facing the roll are located at a distance from the roll surface with the possibility of working gaps with it.
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    nineteen
    .15
    IS
    Editor M.Kelemesh Tehred M.Hodanich Proofreader V, But ha
    1426/57
    Circulation 559Subscribe
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, .Raushska nab. 4/5
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1386021A3|1988-03-30|Apparatus for manufacturing protectors for automobile tyres or other profiles,or sheets from caoutchouc,elastomers or thermoplasts
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    EP0084450B1|1986-05-28|Thermoplastic film extruding t-die
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    CA1080610A|1980-07-01|Longitudinal cutting device
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    DE3448026C2|1987-06-11|
    US3608412A|1971-09-28|Tread slitter
    US2552674A|1951-05-15|Apparatus for cutting sheet material
    CA1147519A|1983-06-07|Adjustable pelletizing apparatus
    同族专利:
    公开号 | 公开日
    AT383079B|1987-05-11|
    JPS6119344A|1986-01-28|
    FR2566699A1|1986-01-03|
    GB2163090B|1988-09-07|
    IT1183671B|1987-10-22|
    DE3424257A1|1986-01-23|
    IT8520866D0|1985-05-24|
    US4642039A|1987-02-10|
    GB8514010D0|1985-07-10|
    FR2566699B1|1988-05-27|
    GB2163090A|1986-02-19|
    ATA182385A|1986-10-15|
    CH666856A5|1988-08-31|
    NL8501476A|1986-01-16|
    DE3424257C2|1986-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2596769C2|2011-05-31|2016-09-10|Пирелли Тайр С.П.А.|Method and device for producing tires|FR1052780A|1951-01-20|1954-01-27|Dynamit Nobel Ag|Method and apparatus for the continuous manufacture of endless sheets and belts made of materials such as thermoplastic synthetics|
    US3433292A|1966-05-25|1969-03-18|Gen Motors Corp|Locking mechanism for diecasting|
    GB1144863A|1967-01-12|1969-03-12|Hermann Berstorff Maschb Ansta|Method of producing webs of material of uniform longitudinal thickness|
    US3505708A|1967-01-30|1970-04-14|Ernest P Moslo|Fluid power actuated clamp for molding apparatus|
    GB1242733A|1967-10-24|1971-08-11|Rudolf Paul Fritsch|A slit-shaped extrusion nozzle for extrusion of synthetic thermoplastics materials|
    US3543333A|1968-03-18|1970-12-01|Berstorff Gmbh Masch Hermann|Manufacture of synthetic resin rails|
    US3482279A|1968-03-18|1969-12-09|Berstorff Gmbh Masch Hermann|Extrusion press|
    CA997035A|1971-06-23|1976-09-14|Richard W. Bell|Process for controlling a dimension of a continuous extrudate|
    US4060368A|1972-06-19|1977-11-29|Theysohn Helmuth|Flat-sheet injection head|
    US3947201A|1973-12-07|1976-03-30|Usm Corporation|Extruder and roll die apparatus|
    DE2457532B2|1974-12-05|1979-11-15|Paul Troester Maschinenfabrik, 3000 Hannover|Screw extruder with split wide die head|
    DE2625737C2|1976-06-09|1983-11-10|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Extruder calender|
    DE2700003A1|1977-01-03|1978-07-06|Reifenhaeuser Kg|PLANT FOR THE PRODUCTION OF EXTRUDED PROFILES|
    CA1102072A|1978-04-26|1981-06-02|George G. Geisbrecht|Roller die extruder and method of use thereof|
    DE2937204C2|1979-09-14|1982-09-02|Werner & Pfleiderer, 7000 Stuttgart|Extruder machine with wide die head and associated calender|
    US4245971A|1979-10-18|1981-01-20|Donald Macmillan & Son, Inc.|Molding machine with expandable chamber and locking means|
    DE3216377A1|1981-09-26|1983-06-16|Detlef Dipl.-Ing. 4970 Bad Oeynhausen Gneuss|DEVICE FOR PRODUCING TUBES FROM PLASTIC MEASURES|
    US4465451A|1982-07-21|1984-08-14|Welding Engineers, Inc.|Apparatus and method for controlling extrusion back pressure|
    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|
    DE3238284C2|1982-10-15|1986-08-07|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Extrusion head for the production of flat profiles from various rubber or plastic compounds|
    GB8309875D0|1983-04-12|1983-05-18|Babcock Wire Equipment|Continuous extrusion apparatus|
    US4539169A|1983-07-29|1985-09-03|The Goodyear Tire & Rubber Company|Apparatus and method for forming a co-extrusion from extruded strips|
    DE3327806C1|1983-08-02|1984-06-20|Karl 7298 Loßburg Hehl|Mold clamping device on a mold clamping unit|
    US4526528A|1984-06-28|1985-07-02|The Goodyear Tire & Rubber Company|Apparatus for forming a co-extrusion from extruded strips|DE3535269C1|1985-10-03|1986-12-18|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Sealing device for a screen changing device|
    DE3712343A1|1987-04-11|1988-10-20|Krupp Gmbh|EXTRUSION HEAD WITH A CLAMPING DEVICE FOR THE TOOL PARTS|
    US5022844A|1987-08-06|1991-06-11|Edward S. Robbins, III|Apparatus for forming foldable plastic products|
    IT1230658B|1987-12-02|1991-10-29|Danieli Off Mecc|EXTRUSION PRESS.|
    DE3806387A1|1988-02-29|1989-09-07|Troester Maschf Paul|METHOD AND DEVICE FOR PROCESSING ELASTOMERIC MEASURES, ESPECIALLY PLASTIC, RUBBER AND THEIR MIXTURES|
    FR2630961B1|1988-05-06|1990-09-07|Michelin & Cie|METHOD AND APPARATUS FOR COATING RUBBER THREADS IN PARALLEL AND THUS PRODUCING A TABLECLOTH|
    DE3900952C1|1989-01-14|1990-03-22|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De|
    US5030079A|1989-10-27|1991-07-09|The Goodyear Tire & Rubber Company|Roller die extrusion and calendering apparatus|
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    FR2922808B1|2007-10-30|2010-02-19|Michelin Soc Tech|DEVICE FOR THE EXTRUSION OF A GUM BAND.|
    US9527256B2|2009-10-13|2016-12-27|Pirelli Tyre S.P.A.|Process and apparatus for building tyres for vehicle wheels|
    CN101693403B|2009-10-27|2011-07-20|天津赛象科技股份有限公司|Hydraulic locking mechanism of multiple-complex extruder head|
    JP5299539B1|2012-04-09|2013-09-25|横浜ゴム株式会社|Pneumatic tire|
    DE102016121262B3|2016-11-07|2018-02-22|Troester Gmbh & Co. Kg|extrusion device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3424257A|DE3424257C2|1984-06-30|1984-06-30|Equipment for the production of treads for car tires or other profiles or tracks|
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