• 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:
    In an extruder with a wide extrusion head and an associated calender, the wide extrusion head defining a sheet extrusion die 16 has an upper extrusion head, part 12 and a lower extrusion head part, which parts can be moved away from one another. At least one clamping device is provided which releasably presses the upper extrusion head part and the lower extrusion head part together and which is mounted in an associated side wall of the calender and is provided with a hydraulically operable piston cylinder drive. In order to achieve optimum clamping of the upper extrusion head part 12 and the lower extrusion head part, each clamping device has a tie rod which, on its one side bears against the lower extrusion head part or the upper extrusion part by means of a fixed abutment, e.g. a nut, or by means of an axially variable abutment e.g. a thrust box 51, which can be driven by a drive nut, the clamping device being mounted on the side wall to be freely movable in the upward and horizontal directions.
    公开号:SU986293A3
    申请号:SU802977038
    申请日:1980-09-12
    公开日:1982-12-30
    发明作者:Гриммингер Альберт；Кох Хайнц
    申请人:Вернер Унд Пфлейдерер (Фирма)；
    IPC主号:
    专利说明:

    (54) INSTALLATION FOR PLASTICS PROCESSING
    one
    The invention relates to the polymer machinery industry, in particular to installations for processing plastics, including an extruder with a slit head in combination with a calender. five
    The closest technical. The essence and the achieved result is the installation for processing plastics, containing a jg calender and an extruder with a slotted head, the casing of which is mounted with the possibility of horizontal displacement relative to the calender, and the slit head is made in the form of a bottom j5 and mounted relative to the bottom parts with the possibility of moving the upper part fixed on the side wall of the calender at least one tensioning device for pressing down the parts of the slit head mounted with the possibility of Vertical, (w movement and soybeans. union of hydraulically driven tsilyndroporshnevym Cl 3.
    (A disadvantage of the known installation is that considerable forces arising from the operation of the extrusion head, affecting the upper and lower parts of the head and causing expansion of the slot channel, are perceived by the side walls of the calender frame, which makes it difficult to accurately set the constant working gap between the calender rolls.
    The aim of the invention is to improve the quality of the workpiece by providing a constant working gap of the calender and slit head.
    This goal is achieved by the fact that in a plastics processing plant containing a calender and an extruder with a slotted head, the casing of which is mounted with the possibility of horizontal movement relative to the calender, and the slit head is made in the form of the lower part and mounted at the lower part with the possibility of moving the upper part mounted on the side wall of the calender at least one tensioning device for pressing the parts of the slit head, mounted with the possibility of vertical movement and connected to a hydraulic cylinder-piston drive, the tensioning device is made in the form of a clamping bolt placed with the possibility of horizontal movement in the grooves made from the calender in the upper and lower part of the slotted head, nuts for fixing the clamping bolt relative to the lower part of the slotting head and thrust glass connected to the water and mounted in the upper part of the clamping bolt. In addition, the tensioning device is equipped with spherical bearings with brackets, one of which is placed between the thrust cup and the upper part of the slotted head, and the other is placed between the nut and the lower part of the slotted head. FIG. Figure 1 shows a part of an extruder with a slit head and a calender with tensioning devices, side view, section view; FIG. 2 is a section A-A- in FIG. in fig. 3 section bb in fig. 2; in fig. k. - section bb in fig.Z; in fig. 5 section GGD in figure 2. The installation comprises an extruder, the core 1 of which is mounted for movement in the longitudinal direction by means of rollers 2 interacting with rails 3 mounted stationary on the floor 4. Inside the housing 1 there is an auger 5 connected with a rotational drive (not shown). At the end 6 of the housing 1 it is fastened with a screw 7 by a support plate 8, on which there is a slotted head, made in the form of the lower part E and mounted relative to the lower part E with the possibility of moving the upper part 10. On the lower 9 and upper 10 mas These are inserts 11 and 12, which form a slit channel 13, through which plasticized material supplied by screw 5 into the slit head is extruded. In inserts 11 and 12, channel k is made for a thermostatic medium. Vr.vn 10 part of the head is mounted with the possibility of rotation around the movable axis 15 upward relative to the boa plate 8. The movable 15 is fixed in the hinge 16 placed on the support plate 8, and in the hinge 17 fixed on the upper part 10 of the head. A hydraulic cylinder-piston actuator 18 is placed on the base plate 8 for turning the top part 10 of the head upwards. The cylinder 19 of the actuator 18 on the output side of the piston rod 20 is pivotably mounted in the hinge brackets 21 by means of pivot pins 22. The pivot pins 22 are arranged parallel to the movable axis 15. The piston rod 20 is connected to the top 10 part of the head by means of a pivot joint 23, axis which is parallel to the movable axis 15 and the axis of the pivot pins 22. Such a structure makes it possible to flip up the upper part, the heads with the insert 12 fixed on it to open the slotted channel 13. To fix the upper part 10 in the folded position on the base plate 8 is placed a stopper key 2, which is mounted for movement under the hinge 17 pivoted up with the help of a hydraulic piston-cylinder actuator 25. The lower part of the head is rigidly fixed on the base plate 8, and the adjustment relative to the top 1.0 is carried out using prism key 2b. In the working position (Fig.), The slot channel 13 is located in the gap 27 of a pair of rolls 28 and 29 of the calender, which are mounted in the side walls 30 of the calender rotatably around their axes 31 and 32. In the working position of the extruder, the support plate 8 is fixed through the support plate 33 is axially relative to the side wall 30 of the calender. In addition, the support on the plate 8 is additionally secured by means of a stopper 3 placed in a recess 35 in the base plate 8. The stopper 3 itself is mounted on the side wall 30 and is brought into the working position by a hydraulic piston-cylinder actuator Zb. Cheeks 37 are placed between the inserts 11 and 12 of the slotted head / yiH are limited on the side of the slot channel 13 mounted on the base plate B with the possibility of movement. Steps II and 12 are attached to the soup bar 37 Rdna, its upper; but. other lower surfaces. Compressing the upper 10 and lower 19 parts of the extruder head, the installation is equipped with clamping bolts 38. The end bolts 38 are connected at their upper end by means of a threaded plug 39 to the piston rod 40 and the piston actuator cylinder At. The cylinder A2 of the actuator tl through a tubular cylindrical thrust cup k3, inside of which a threaded sleeve 3 is placed, rests on a spherical bearing k located in the socket k. The spherical bearing is fixed by means of a bracket 46 in a thrust cup 43. In addition, for fixing the spherical bearing on the upper part 10 of the head, supporting films 47 are fixed to which the bearing is attached in the working position. At the lower end of each clamping bolt 38, a nut 48 is screwed, which is locked by a locknut 49 on which the spherical bearing 44 is supported. In the working position, the clamping bolts 38 are located in the openings 50 facing the rollers 28 and 29, which allows the extruder with a slit head move relative to the calender. The entire tensioning device described, including the actuator 41, clamping bolts 38 and spherical bearings 44, is disposed on the side wall 30 of the calender. To do this, a lining 51 with an inner bore 52 with a diameter greater than the outer diameter of the nut 48 is screwed on the side wall 30, which ensures that the nut 48 is placed in the bore 52 with a radial clearance. There is a stop 53 on the underside of the lining 51, limiting the movement of the tension device. In the upper zone of the tensioning device on the side wall 30 there is fixed a lining 54, made with a hole 55, coaxially with a hole 52, in which a thrust cup 43 is placed with a radial clearance. The installation follows next. In the extruder, the processed material, for example rubber mixtures, is fed in a cold state, in which using a driving screw 5 under the influence of kneading and shearing, it is plasticized. The slit head is brought into working position when the slit channel 13 is located deep in the gap 27 of a pair of rolls 28 and 29 of the calender mounted rotatably around their axes 31 and 32. The rolls 28 and 29 rotate in opposite directions, so that The exit of the slotted channel 13 into the gap 27 between the rolls. The direction of rotation of both rolls 28 and 29 of the calender corresponds to the direction of the exit of the material. The material leaving the slotted channel 13 is calendered between the rollers 28 and 29 of the calender to the sheet. The constant gap of the slotted channel 13 relative to the gap 27 between the rolls 28 and 29 of the calender is ensured by fixing the base plate 8 through the abutment plate 33 and the stopper 34. I To tension the upper part 10 of the extruder head with the insert 12 to the lower part 9 with the insert 11 The tensioner drive 41 is loaded with hydraulic fluid to move the cylinder 42 downward, which ensures compression of the lower 9 and upper 10 parts of the extruder head between both spherical bearings Thanks to the implementation of spherical bearings 44 and tension The radial clearance device in the lining plates 51 and 54 can be made so that, on the one hand, the clamping bolt 38, and on the other hand, the lower 9 and upper 10 parts of the extruder head and the inserts 11 fixed to them 12, only tensile and lifting forces are applied and bending forces are not affected. In order to retract the extruder with a slotted head from the rolls 28 and 29 of the calender, the pressure is applied to the drive 41 in the opposite direction, which allows the cylinder 42 to move with the thrust cup 43 and the upper spherical bearing 44 with the bracket 46 slightly upward. Then, the stopper 34 is released by means of the drive 36 and the extruder with a slit head moves horizontally in the direction from the calender. In this retracted position, the upper part 10 of the head with the insert 12 is folded up by means of the actuator 18, opening the slot channel 13 for cleaning. 7 Tension devices are almost completely freed from the extruder and from the calender. They are only attached to the bed of the calender so that they can, with the slit head removed, remain in a position that allows a new slit head to be brought in. When the temperature in a thermostatic medium or in the material being injected is changed, no additional forces are introduced into the tensioning device or into the calender bed. The use of the invention will allow to obtain a high-quality sheet material, which is achieved by optimal tightening of the upper and lower parts of the slotted head of the installation. Formula of the invention 1. A plant for processing plastics, containing a calender and an extruder with a slit head, the casing of which is mounted with the possibility of horizontal movement relative to the calender, and the slit head is made in the form of the lower part and mounted relative to the lower part with the possibility of moving the upper fixed on the side wall of the calender at least one 8,: 3 tension device for pressing the parts of the slit head mounted for vertical movement and connected to the hy A hydraulic piston-piston drive, characterized in that, in order to improve the quality of the workpiece by providing a constant working gap of the calender and a slit chase in the form of a clamping bolt, the size; horizontally in recesses made from the side of the calender to the upper and lower parts of the slotted head. nuts for fixing the clamping bolt relative to the lower part of the slotted head and the thrust cup connected to the drive and mounted in the upper part of the extension bolt. 2. Installation according to claim 1, in which the tensioning device is equipped with spherical bearings with brackets, one of which is placed between the thrust cup and the upper part of the slotted head, and the other is placed between the nut and the lower part slotted head. Sources of information taken into account in examination 1, German Application No. 2229828, cl. 39 a 7/0, publ. 197 (prototype).
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    权利要求:
    Claims (2)
    [1]
    Claim
    1. Installation for processing plastics, containing a calender and an extruder with a slot head, the housing 25 of which is mounted with the possibility of horizontal movement relative to the calender, and the slot head is made in the form of a lower part and mounted relative to the lower part with the possibility of moving the upper one. at least one tension device for preloading the parts of the slot head mounted on the side wall of the calender, mounted with the possibility of vertical movement and connected to a hydraulic piston cylinder drive, characterized in that, in order to improve the quality of the workpiece by ensuring a constant working gap of the calender and slot the head, the tensioning device is made in the form of a coupling bolt placed with the possibility of horizontal movement in the recesses made from the side of the calender in the upper d and bottom of the die ,. nuts for fixing the coupling bolt relative to the lower part of the slotted head and the thrust cup connected to the drive and mounted in the upper part of the coupling bolt.
    [2]
    2. Installation according to claim 1, with respect to the fact that the tensioner is equipped with spherical bearings with brackets, one of which is placed between the thrust cup and the upper part of the slot head, and the other is located between the nut and the lower part of the slit head.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU986293A3|1982-12-30|Plastic mass process plant
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    KR910000255A|1991-01-29|Variable Width Roll for Rolling Mill
    US3103701A|1963-09-17|Mold press
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    US4991420A|1991-02-12|Roller nip adjustment device
    US4256448A|1981-03-17|Roller die
    JPH06344406A|1994-12-20|Injection molding machine containing clamping device for plastic material, such as synthetic resin
    US3619859A|1971-11-16|Extrusion apparatus
    EP1275487A1|2003-01-15|Apparatus for force or pressure monitoring in injection moulding machines
    KR0175960B1|1999-05-15|Sheet width adjusting apparatus for rolling head extruder
    JP3067123B2|2000-07-17|Die casting machine mold clamping device
    US5542836A|1996-08-06|Device for extruding and smoothing plastic films
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    US5326247A|1994-07-05|Paste extruder
    US4426201A|1984-01-17|Screw feed/ram injector
    同族专利:
    公开号 | 公开日
    JPS5644638A|1981-04-23|
    FR2464821B1|1984-04-27|
    IT8023640D0|1980-07-23|
    JPS5839664B2|1983-08-31|
    GB2061173A|1981-05-13|
    IT1131981B|1986-06-25|
    US4354814A|1982-10-19|
    GB2061173B|1983-08-10|
    DE2937204C2|1982-09-02|
    DE2937204A1|1981-03-19|
    FR2464821A1|1981-03-20|
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    GB1282876A|1968-10-14|1972-07-26|Guthrie Ind Ltd|Process and apparatus for forming layers of setting plastics materials|
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    DE2236363B2|1972-07-25|1979-12-06|Paul Troester Maschinenfabrik, 3000 Hannover|Two-part, open, wide die head for a screw extruder|
    DE2413844B2|1974-03-22|1976-01-22|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|WIDE SLOT NOZZLE HEAD FOR EXTRUDER|
    DE2457532B2|1974-12-05|1979-11-15|Paul Troester Maschinenfabrik, 3000 Hannover|Screw extruder with split wide die head|
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    DE2625737C2|1976-06-09|1983-11-10|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Extruder calender|JPS5887013A|1981-11-18|1983-05-24|Japan Steel Works Ltd:The|Continuous kneading and granulating apparatus|
    IE48145B1|1982-11-02|1984-10-03|Balintubber Enterprises Ltd|Peat extrusion apparatus|
    DE3424257C2|1984-06-30|1986-05-15|Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover|Equipment for the production of treads for car tires or other profiles or tracks|
    US4939235A|1985-09-26|1990-07-03|Foster-Miller, Inc.|Biaxially oriented ordered polybenzothiazole film|
    DE3637358C1|1986-11-03|1988-03-24|Hermann Berstoff Maschb Gmbh|Extruder-calender for producing films or sheets from plastic, rubber or similarly behaving materials|
    JPS63121331A|1986-11-10|1988-05-25|Matsushita Electric Ind Co Ltd|Multiplex demodulator|
    JPH0517223Y2|1987-01-05|1993-05-10|
    NL8701362A|1987-03-06|1988-10-03|Wavin Bv|DEVICE FOR FORMING A PLASTIC PREPARATION; EXTRUDER FOR SUCH A DEVICE; EXTRUSION LINE WITH ONE OR MORE OF SUCH EXTRUDERS; EXTRUSION HEAD FRAME AND EXTRUDER FRAME AND PLASTIC PREPARATION OBTAINED BY EXTRUSION.|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2937204A|DE2937204C2|1979-09-14|1979-09-14|Extruder machine with wide die head and associated calender|
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