• 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 filter screen exchanging device having a pair of parallel slide plates 12 disposed in branched passages DK, EL of a plastic resin extruder 10. Each slide plate has a shouldered hole 14 on one side accommodating a breaker plate 15 having a plurality of flow nozzles 20, a filter screen 17, and a threaded screen cap 18 having a plurality of trapezoidal apertures therein. The other side of each slide plate is blind, and the plates are alternately transferred for screen and cap exchange by hydraulic cylinders 13. The extruder operation is thus continuous, the breaker plate is not exchanged with each screen and cap replacement, and the screen mounting arrangement is designed to minimize air entry and resin leakage during slide transfer.
    公开号:SU910111A3
    申请号:SU782599106
    申请日:1978-03-17
    公开日:1982-02-28
    发明作者:Сирато Тору；Есида Минору；Мизугути Хидеки
    申请人:Дзе Джапэн Стил Воркс,Лтд (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of polymeric materials and can be used in extruders when replacing a filter device.
    Extruder known filter device comprising a housing with 5 smontiro- bath therein and disposed on the bars by the flux lattice filter mesh material [1].
    The disadvantage of this device is the low productivity of the extruder due to the 10 need to stop the extruder to change the filter device.
    The closest to the invention in terms of technical nature and the achieved result is a filtering device in the feed channel of the extruder containing the main filtering unit made in the form of a board with a through hole in which the grating and is mounted. located on. lattice on the material flow side of the filter mesh with its fastening means, and a drive for moving the filter assembly in a direction perpendicular to the material flow direction £ 2].
    The disadvantage of this device is its low performance.
    The purpose of the invention is improving the performance of the device.
    The circuit is achieved by the fact that the filtering device of the feed channel of the extruder, containing the main filtering unit, made in the entrance of the board with through holes, in which the grating is mounted and the filtering grid located on the grating from the side of the material flow, with its fastening means, and a drive for moving the filtering unit to direction perpendicular to the direction of material flow, is equipped with an additional filtering unit of a similar design with a drive drive in a direction perpendicular the flow direction of the material, and the filter plate boards are installed parallel to each other one by one in the branches of the supply channel, which are made
    91011 in the extruder and each has at one end a locking section and a section with a grill at the other end, and the fastening means of the filter mesh is made in the form of a removable cover with holes. 5
    In this case, each board of the filter unit is made with a by-pass through hole with a diameter that provides a pressure drop of the melt flow equal to the pressure drop of the melt flow in the brush, filter screen and cover. The surface of the cover is located in the same plane as the surface of the board. The surface of the cover is located below the surface of the board. fifteen
    The diameter of each opening of the cover is made increasing in the direction of movement of the material flow.
    In FIG. 1 shows a device, a General view; in FIG. 2 is a section aa into 20 of FIG. 1; in FIG. 3 - filtering unit with the board in the disassembled state, section; in FIG. 4 - enlarged filter elements; in FIG. 5 - board in a partially moved state; 25 of FIG. 6 - lower branch channel of the extruder, blocked by the locking section; in FIG. 7 is a section BB in FIG. 6; in FIG. 8 - board with a through hole.
    The filter device of the feed channel of the extruder contains a main filter unit 1, made in the form of a board 2 with a through hole 3, in which a grate 4 with many nozzles 5, which are beveled in the '35 upstream sections, and located on the grate 4 on the material flow side, is mounted filter mesh 6 with • means 7 of its fastening, and a moving drive of the filtering unit 1, made in the form of a hydraulic cylinder 8. The filtering device is equipped with an additional filtering unit 9 of a similar design with a moving drive in a direction perpendicular to the material flow formed in the 45 form of a hydraulic cylinder 10, the circuit board 2 and 11 filter units 1 and 9 are arranged parallel to each other, one in the branches A and B of the supply channel, which are formed in the extruder and have 50 each on one end the locking portion 12 and the portion with the grill 4 at the other end, and the means 7 for attaching the filter mesh 6 is made in the form of a removable cover 13 with holes 14. Each 55 circuit board 2, 11 of the filter assembly 1.9 is made with a bypass through hole 15 with a diameter providing m pa .1 4 denia. the pressure of the melt flow equal to the pressure drop of the melt flow in the grate 4, the filter screen 6 and the cover 13. The surface of the cover 13 is located in the same plane as the surface of the board 2, 11. The surface of the cover 13 is located below the surface of the board 2, 11. The diameter of each holes 14 of the cover 13 is made increasing in the direction of movement of the material flow.
    During the operation of the extruder, the polymer material is fed through channels A and B to the filter units 1 and 9, after filtration, the polymer material is fed into the head. When it is necessary to replace the grid 6, one of the boards 2, 11 located in the channels A or B is moved using the corresponding hydraulic cylinder 8, 10..
    In FIG. 1 shows the moment when the board 2 is in a disabled or moved state, due to which the channel A is blocked and the polymer material flows through another channel B. This ensures the continuous operation of the extruder. In the allotted state, the filter screen 6 mounted on the circuit board 2, 11 and the cover 13 are removed (Fig. 3) and replaced with new ones. Then, the hydraulic cylinder 8, the board 2 returns to its original working position.
    In extruders designed for viscous polymers, bypass holes 15 are made in the boards 2, 11 (Fig. 8), so that the pressure loss of the polymer when passing through the grating 4 and the filter mesh 6 will be equal to the loss of polymer pressure through the bypass hole 15. Position and dimensions the bypass holes 15 are such that the polymer located in the head does not exit until the air in the specified hole has completely exited. Due to this, the pressure fluctuations of the polymer can be minimized when moving the boards 2, 11, and after the movement, the increase in pressure can also be prevented during a one-step operation.
    This filter device allows you to increase the performance of the extruder.
    权利要求:
    Claims (5)
    [1]
    The invention relates to the processing of polymeric materials and can be used. Used in extruders when replacing a filter device. A SKCT rudder filtering device is known, comprising a housing with a grating mounted therein and a filter screen located on the grate from the flow of material. The disadvantage of the device is the low productivity of the extruder and the need to stop the extruder to change the filtering device. The closest to the isophobia by technical essence and the achieved result is a filtering device in the feed channel of the extruder, containing the main filtering unit, made in the form of a board with a through hole, in which the grid is mounted and located on. grate on the flow side of the material filtering mesh with means of its removal, and drive of the filter unit in the direction perpendicular to the direction of flow of material C 2. The lack of a device is not productive. The goal of isophene is to increase device performance. The goal is achieved by the filtering device of the extruder feed channel, which contains the main filtering unit, made in the inlet of the board with through holes, in which the grate is mounted and located on the grating on the material flow side, and the filter movement drive node in the direction perpendicular to the direction of flow of the material, provided with an additional filtering node of a similar construction with a drive displacement in the direction perpendicular the direction of the material flow, the filtering nodes being installed parallel to each other one by one in the branches of the supply channel, which are 391 B e "; the valve and the tube each have a shut-off section and a grid section at the other end on one channel, and the tool is equipped with a grid in the form of a removable cover with holes. In this case, each plate of the filter assembly is made with a bypass through hole with a diameter that ensures the pressure drop of the melt flow, equal to the pressure drop of the melt flow in the grid, filter screen and the cover. The surface is located in the same plane as the surface of the board. The surface of the lid is located on the surface of the board. The diameter of each hole of the rivet is made increasing in the direction of movement of the material flow. FIG. 1 shows the device, a general view; on F1-1G. 2 shows section A-A in FIG. one; in fig. 3 - filtering unit with the board in a disassembled state; in fig. four . filter elements on a larger scale; in fig. 5 - board in a partially moved state; on phi 6 - the lower branch of the extruder, covered by a stop section in FIG. 7 is a section BB in FIG. 6; in fig. 8 - board with C1 hole. The filtering device of the feed channel of the extruder contains the main filtering unit 1, mounted in the form of board 2 with a through hole 3, in which the grate 4 is mounted with a plurality of nozzles 5, which are skewered in the upstream sections, and located on the grate 4 from the material flow side filtering mesh 6 with means of its fastening, and a movement drive of the filtering unit 1, made in the form of a hydrodynamic unit 8. The filtering device is equipped with a pre-shaped filtering unit 9 of a similar movement-driven design in the direction perpendicular to the direction of the flow of material, carried out in the form of hydroxide Indra 10, with the boards 2 and 11 of the filtering units 1 and 9 being parallel to each other one by one in the branches A and B of the feed channel, which are made in the extruder and have each at one end is a locking section 12 and a section with a grill 4 at the other, and the mounting means 7 for filtering ceTiffl 6 is made in the form of a removable keyhole 13 with holes 14. Each., the board 2, 11 of the filter unit is 1.9 complete with a bypass a through hole 15 with a diameter that makes 14 the pressure of the melt flow is equal to the pressure drop of the melt flow in the grate 4, the filtering grid 6 and the cover 13. The surface of the cover 13 is located in the same plane as the surface of the board 2, 11. The surface of the cover 13 is located below the surface of the plate 2, 11. The diameter each aperture 14 of the lid 13 is filled increasing in the direction of movement of the material flow. During operation of the extruder, the polymeric material is fed through the channels A and B to the filtering nodes 1 and 9, after filtration the polymeric material is fed into the die. When it is necessary to replace the grid 6, one of the boards 2, 11 located in the channels A and bm B is moved by means of the corresponding hydraulic cylinder 8, 10.. FIG. Figure 1 shows the moment when the board 2 is in a disengaged or displaced state, whereby channel A is blocked and the polymer material flows through another channel B. In this way, continuous operation of the extruder is ensured. In the allotted state, the filter mesh b mounted on the board 2, 11 and the cover 13 C1 are screwed out (Fig. 3) and replaced with new ones. Then the hydraulic cylinder 8 board 2 returns to its original operating position. In extruders designed for viscous polymers, single holes 15 are made in plates 2, 11 (Fig. 8), so that the loss of pressure of the polymer when passing through the grid 4 and the filter grid 6 is equal to the loss of pressure of the polymer through the bypass hole 15. The position and dimensions of the bypass hole 15 are such that the polymer in the head does not come out until the air in the hole is completely out. Due to this, the pressure fluctuations of the polymer can be minimized when the board 2, 11 is moved, and the displacement of the pressure can also be prevented by increasing the pressure during a one-pass operation. This device will improve the performance of the extruder. Claims 1. Feed filtering device. 1 channel extruder ,. containing the main
    59
    A fusing unit, implemented in the form of a board with a through hole, in which the grating is mounted and on the grating on the flow side of the material a filtering net with means for fixing it, and driving the displacement of the filtrating unit in a direction perpendicular to the flow direction of the material, characterized in in order to increase productivity, it is equipped with an additional filtering unit with a similar design with a displacement drive in a direction perpendicular to the direction of material flow, with the board filter uyuschih nodes are arranged in parallel to each other on one of the arms of the supply channel, which vsholneny in Extra dere and each have at one end of the locking portion and a grating at the other end, and securing means of the filter grids vshopneno a removable krpnki apertured.;
    [2]
    2. The device according to claim 1, l and h and y and e so that each board of the filter assembly is complete with a bypass
    11.6
    cross-section oTBepCTneNf with a diameter that ensures the pressure drop of the melt flow, equal to Pep1P {Yu melt flow pressure in the lattice, filtering mesh and grout.
    [3]
    3. The device according to PP 1 and 2, about the fact that the surface of the cover is located in the same plane,
    as the surface of the board.
    ,
    [4]
    4. Popp device 1 and 2, characterized in that the surface of the cover is located below the surface of the board.
    [5]
    5. A device according to claim 1-4, characterized in that the diameter of each hole of the cap is made increasing in the direction of movement of the material flow.
    Sources of information taken into account in the examination
    1. Kaplun Ya. B. and K1sh V.S. Fop iyushchy equipment of extruders. M., Ma-; lining construction, 1969, p. 22, fig. 14.
    2. In the same place 36 / fig. 26 (prototype).
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    类似技术:
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    同族专利:
    公开号 | 公开日
    JPS5927698B2|1984-07-07|
    GB1587580A|1981-04-08|
    US4167384A|1979-09-11|
    JPS5474863A|1979-06-15|
    DE2811771C2|1983-11-10|
    FR2409847B1|1981-04-10|
    DE2811771A1|1979-05-31|
    FR2409847A1|1979-06-22|
    引用文献:
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    JPS63288732A|1987-05-20|1988-11-25|Fuji Photo Film Co Ltd|Apparatus for exchanging filter for extrusion molding machine|
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    DE4227137C2|1991-02-25|1995-04-27|Rielmann Hans Georg|Filter device for liquid plastic pressure pipes|
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    JP5921392B2|2012-09-05|2016-05-24|株式会社クレハ|strainer|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP52141572A|JPS5927698B2|1977-11-28|1977-11-28|
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