• 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 screw 30 feeds material to the rolls 16, 18, of the machine, which are mounted for movement along planes which are oblique to one another and to a centre plane X, of the machine to give improved force distribution to the frame 50 of the machine and to give ready access to the machine for cleaning purposes. The planes of movement may be at angles A, B of 15 DEG to 60 DEG to a plane perpendicular to the plane X. The movement is effected by the roll bearings 58, being displaceable along slots 60 of the frame 50, by hydraulic cylinders 62 which also act to determine the nip between the rolls 16, 18. A sensor 75 may act to control the speed of the rolls 16, 18, or of the extruder screw 30, or the size of the roll nip by regulating the hydraulic pressure of cylinders 62, or the heat transfer of the rolls 16, 18, or of the extruder die 46. <IMAGE>
    公开号:SU952090A3
    申请号:SU792736403
    申请日:1979-03-07
    公开日:1982-08-15
    发明作者:Эдвард Кэрл Джордж
    申请人:Юсм Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to extruders for molding articles made of polymeric materials, in particular sheets, and can be used in the chemical industry.
    A known installation for processing polymer materials containing an extruder, two rotating rolls mounted with the formation between them of a working gap, a photoelectric sensor and an actuator. The principle of operation of this installation is to create a system for controlling the speed of the drive of two rolls, installed mainly in a fixed position at the outlet end of the extruder, designed to compensate for changes in the output of the extruder by increasing 2 θ or lowering the speed of rotation of the rolls depending on the information received from the photoelectric sensor, connected to an actuator which in its red oche- May 2, connected to the hydraulic motor [lj.
    The disadvantage of the installation is that it does not provide access to the extruder without dismantling the rolls, which complicates the maintenance of the installation. In addition, since the photoelectric sensor determines changes in the flow rate of the mass of material exiting the extruder only by entering it in the rolls, the possibility of damage to the rolls, and, of course, the installation frame on which the rolls are installed, remains significant. So, for example, when the pressure increases, at which the material leaves the extruder, the sensor mounted below the rolls along the material is able to detect an increase in the mass of the material. However, by this point, damage may already occur in the supporting structure of the rolls.
    Closest to the proposed installation is a plant for processing polymer materials containing an extruder, two rotating rolls mounted with the formation of a working gap between them in the bearings, a pressure sensor located in the outlet of the extruder in front of the working gap of the rolls, and an actuator. In this installation, a pressure sensor is placed in front of the rolls in the output part of the extruder, which allows you to set higher material pressure in the output part of the extruder and prevent damage to the design of the rolls [2]
    The disadvantage of the installation is that there is no adjustment s of the working gap between the rollers, there is no possibility of mixing the rollers under the action of high pressure, which spills the voltage in the installation frame, breakage of the rollers and, therefore, in reduces the reliability of the installation. In addition, access to the extruder is difficult due to the difficulty of roll retraction.
    The purpose of the invention is to increase the reliability of the installation. ‘
    This goal is achieved by the fact that the installation for processing polymers:
    '1'
    1 materials containing the extruder, expanding the roll, seeing them with the formation of a working gap between them in the bearings, a pressure sensor located in the outlet of the extruder in front of the working gap of the rolls, and an executive a mechanism equipped with two hydraulic cylinders for moving the rolls obliquely relative to the direction of material supply connected via an actuator with a pressure sensor β
    In addition, the bearing bearings of the rolls are mounted in a directional axis at an angle of 15 ° and relative to the crowds
    D!
    the ex
    SMS
    P and ala,
    In FIG. 1 shows the proposed taiovka, General view; <and FIG. 2 st extruder and ggzkoz, and waelizg m scale.
    The installation contains an extruder 1 Ί a roll head 2 having upper, i and lower 4 solders, which, interacting with each other, form a working struder 1, contains a guillaude screw 7, is forged to rotate with a longitudinal hole 8 (figure 2), Screw 7 the extruder 1 is driven into rotation by a suitable motor through a gearbox mounted in the housing 9 at one end of the extruder 1.
    The feed hopper 10 is located in the middle of the extruder 1 and the limit is a means for feeding the extrudable material into the longitudinal hole 8. At the output end of the extruder 1 (left end), a flange 11 is mounted (Figs. 1 and 2). The flange 11 is designed to mount the adapter 12 to the extruder 1-. Roller-matrix head 2 contains a transition section 13 located between the adapter 12 and a pair of supporting roll frames 14 having sections that are located almost parallel (only one parallel frame 14 G shown
    4C AB 55, ka12 passes through the transition section · In the place where channel 15 approaches adapter 12, its cross-section is circular, at the OUTPUT HOLE it goes into an elongated, from which extrudable material is fed to the upper and lower rolls 3 and 4.
    Directly behind the outlet of the transition section 13, the upper 3 and lower 4 rollers form a working gap 5. The rollers 3 and 4 are mounted at their ends in the bearing bearings - bearings 16. Each of the bearings 16 is mounted with the possibility of sliding in an elongated groove 17 made in each of the frames 14, the bearings 16 are displaced by hydrodipindors 18. Each hydraulic cylinder 18 has a rod 19, at the end of which a block 20 is mounted, relative to which the bearing 16 moves. Each of the rolls 3 and 4 has a pair of hydraulic cylinders 18, change yes phenomena in which under the influence of the corresponding hydraulic network (not shown) provides lateral movement of the rolls 3 and 4 in the plane formed by the corresponding grooves 17. The plane of lateral movement of the rolls 3 and 4 is located to the vertical plane at angles A and B, respectively (Fig. 2). Angles A and B can vary between 15-60 °, preferably the eyes are about 30 °. Transverse movement of the rolls 3 and 4 also occurs at an angle to the longitudinal axis of the sleeve 6.
    Each of the rolls 3 and 4 can be rotated by a conventional drive (not shown). As well as the transition section 13, the rolls 3 and 4 can have a set of channels 21 and 22 for the heat transfer medium passing through them. Channels 21 and 22 can be; used to heat or cool the parts of the installation and are equipped with appropriate pipelines (not shown / for supplying and removing a heat transfer medium, as is usually done. Each of the hydraulic cylinders 18 can have a sensitive and control device - a linear pressure sensor 23 to determine and measure the pressure of the extrudable material on the rolls 3 and 4, Using the appropriate electrical or hydraulic circuit of the actuator, the control device can reduce or increase the rotation speed of the rolls 3 and 4 or the speed of the screw 7 of the extruder 1. The control device, the pressure sensor 23 is also designed to change the pressure in the hydraulic cylinders 18, due to which the distance and the working clearance 5 between the rolls 3 and 4 are changed. The control device can also be temperature sensitive in order to control the movement of the heat transfer medium through the rolls 3 and 4 or the transition section 13. In the frame 14 is made channel 24.
    During installation, the screw 7 of the extruder 1 is rotated, and untreated material, such as plastic or rubber, is fed into the feed hopper 10. The material is processed by screw 7, passes through adapter 12 and is discharged through channel 15 of transition section 13 into working gap 5 between rolls 3 and 4, which give the material the shape of a sheet of a given thickness and width. When it is necessary to replace the material processed by the extruder 1, it does not need to be completely disassembled, as are known installations. When relieving the pressure in the hydraulic cylinders 18, each of the rolls 3 and 4 can be diverted in the transverse direction, while the bearings 16 will move in the corresponding grooves 17 of the frame 14. After that, the rest of the material discharged from the extruder 1 can be easily removed from the channel 15 transition section 13 through the upper or lower pressure frame 14, or through the channel between parallel sections of the frame 14 and between the upper and lower rolls 3 and 4. After removing the transition section, you can remove the screw 7 of the extruder 1 through the channel 24, when the rolls 3 and 4 are retracted extreme out ny provisions. During the extrusion process, the reactive forces arising on the rolls 3 and 4 are closed in the frame 14 and the sleeve 6 and, due to the installation of the rolls 3 and 4 at an angle to the direction of extrusion (material movement), they do not act on the hydraulic cylinders 18 or on the rolls 3 and 4. Otherwise, rolls 3 and 4 or hydraulic cylinders 18 may be damaged. When the pressure increases from the pressure sensor 23 through the actuator to the hydraulic cylinders 18, a command is sent to move the rolls 3 and 4 and adjust the gap between them.
    Thus, this installation, which is an extruder 1 and a roll matrix, which better distributes the load on the installation frame and in which the rolls are installed at an angle, provides the ability to change the thickness of the extrudable material, which increases the reliability of the installation and allows easy assembly-disassembly of the installation .
    权利要求:
    Claims (2)
    [1]
    The invention relates to extruders for molding articles from polymer materials, in particular sheets, and can be used in the chemical industry. A known installation for processing polymeric materials, comprising an extruder, two rotating rollers mounted to form a working gap between them, a photoelectric sensor and an actuating mechanism. The principle of operation of this setup is to create a two-roll drive speed control system installed mainly in a fixed position at the extruder discharge end, designed to compensate for changes in the extruder output by increasing or decreasing the rotation speed of the rolls depending on information from the photoelectric a sensor connected to the executive mechanism, which, in turn, is connected to the hydraulic motor Cl. The disadvantage of the installation is that it does not provide access to the extruder without dismantling the rolls. which makes the installation difficult to maintain. In addition, since the photoelectric sensor detects changes in the mass flow rate of the material coming out of the extruder, only by its entry into the rolls, the possibility of damage to the rolls, and, of course, the installation frame on which the rolls are installed remains significant. For example, in case of pressure increase, at which the material leaves the extruder, the sensor installed below the rolls along the material is able to determine the increase in the mass of material. However, by this time damage to the roll support structure may already occur. Closest to the present invention is a plant for processing polymeric materials, comprising an extruder, two rotating wafers, a PC mounted to form a working gap in the bearing supports, a pressure sensor placed in the output part of the extruder before the working gap of the rolls, and an actuator. In this installation, a pressure sensor is located in front of the rollers in the output part of the extruder 5 between rollers 3 and 4. The control device can also be temperature sensitive to control the movement of heat transfer medium through rollers 3 and 4 or the transition section 13. In the frame 14, a channel is made 24. When the installation is in operation, Vict 7 of the extruder 1 is rotated, and the raw material, for example plastic or rubber, is fed to the piTs1 hopper 10. The material is processed by the screw 7, passes through the adapter 12, and is discharged through the channel 15 of the transition section 13 into the working gap 5 between the rollers 3 and 4, which give the material the shape of a given thickness and width. When it is necessary to replace the material processed by extruder 1, it does not need to be completely disassembled, as is known installations. When pressure is removed in the cylinders 18, each of the rolls 3 and 4 can be retracted in the transverse direction, while the bearings 16 will move in the corresponding grooves 17 of the frame 14. After that, the remainder of the material released from the extruder 1 can be easily removed from the channel 15 of the transition section 13 through the upper or lower pressure frame 14, or through the channel between the parallel sections of the frame 14 and between the upper and lower rolls 3 and 4. After removing the transition section, the screw 7 of the extruder 1 can be removed through the channel 24 when the rolls 3 and 4 are retracted to the extreme outside s position. In the extrusion process, the reactive forces arising on the rolls 3 and 4 are closed in the frame 14 and the sleeve 6 and, thanks to the installation of the rolls 3 and 4 at an angle to the direction of extrusion (material transfer), they do not work on the hydraulic cylinders 18 or on the rolls themselves 3 and 4. Otherwise, rolls 3 and 4 or hydraulic cylinders; .1 may be damaged. With increasing pressure from the pressure sensor 23, the actuators are instructed to move the cylinders 18 to move the rolls 3 and 4 and regulate the gap between them. Thus, this installation, which is an extruder 1 and a swath matrix, which, during operation, distributes the load on the frame of the installation and in which the rolls are angled, provides the ability to change the thickness of the material being extruded, which increases the reliability of the installation and allows easy assembly disassembly installation. Claim 1. An installation for processing polymeric materials, comprising an extruder, two rotating rolls mounted to form an operating gap in the bearing supports between them, a pressure sensor placed in the output part of the extruder before the working gap of the rolls, and an actuator that differs in that reliability of the installation, it is equipped with two hydraulic cylinders for moving the rolls obliquely relative to the material feed direction, connected via an actuator with a pressure sensor. 2. Installation according to claim 1, characterized in that the bearing supports of the rolls c are mounted in guides at an angle of 15-60 ° with respect to the direction of material feed. Sources of information taken into account in the examination 1.US Patent W 3975126, cl. 425-141, olublik. 1976.
    [2]
    2. The patent of Sweden 311428, cl. 39a 7/02, publ. 1969 (prototype).
    类似技术:
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    US3308510A|1967-03-14|Film extrusion mill
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    US4484879A|1984-11-27|Roller press for the production of granules or moldings
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    US20150102148A1|2015-04-16|Device for processing free-flowing input material
    同族专利:
    公开号 | 公开日
    BE874701A|1979-07-02|
    NL7901773A|1979-09-11|
    MX148675A|1983-05-27|
    IT1110775B|1986-01-06|
    SE7902082L|1979-09-10|
    IN150686B|1982-11-20|
    BR7901489A|1979-10-09|
    JPS54127466A|1979-10-03|
    AR217900A1|1980-04-30|
    FR2419154A1|1979-10-05|
    GB2016355A|1979-09-26|
    GB2016355B|1982-09-15|
    DE2906004A1|1979-09-20|
    IT7920851D0|1979-03-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3274645A|1963-11-20|1966-09-27|Farrel Corp|Extruder-roller die|
    US3359597A|1966-07-26|1967-12-26|Farrel Corp|Extruder-roller die|
    GB1253886A|1969-02-07|1971-11-17|David Bridge & Company Ltd|Improvements in or relating to the production of sheets of material|
    US3947201A|1973-12-07|1976-03-30|Usm Corporation|Extruder and roll die apparatus|
    FR2351770B1|1976-05-17|1979-10-12|Solvay|GB2237239B|1989-10-27|1993-09-01|Reifenhaeuser Masch|A process for the production of a ribbon of synthetic thermoplastic material in sheet form|
    US6478564B1|2000-09-08|2002-11-12|The Goodyear Tire & Rubber Company|Adjustable flow channel for an extruder head|
    US6491510B1|2000-09-08|2002-12-10|The Goodyear Tire & Rubber Company|Adjustable flow channel for an extruder head|
    US6821106B1|2003-06-24|2004-11-23|The Goodyear Tire & Rubber Company|Roller die preformer for wide extrusions|
    JP2007216187A|2006-02-20|2007-08-30|Kubota Corp|Disintegration device, and crushing facility|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US88474278A| true| 1978-03-09|1978-03-09|
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