DE2407663A1 - Sieving extruded plastics on way to mould - using sieve which is continuously back flushed one hole at a time - Google Patents

Sieving extruded plastics on way to mould - using sieve which is continuously back flushed one hole at a time

Info

Publication number
DE2407663A1
DE2407663A1 DE19742407663 DE2407663A DE2407663A1 DE 2407663 A1 DE2407663 A1 DE 2407663A1 DE 19742407663 DE19742407663 DE 19742407663 DE 2407663 A DE2407663 A DE 2407663A DE 2407663 A1 DE2407663 A1 DE 2407663A1
Authority
DE
Germany
Prior art keywords
sieve
housing
unit
sieve device
bores
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19742407663
Other languages
German (de)
Inventor
Helmut Rolle
Peter Dipl Ing Wende
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PLAST ELASTVERARBEITUNGSMASCH
Original Assignee
PLAST ELASTVERARBEITUNGSMASCH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PLAST ELASTVERARBEITUNGSMASCH filed Critical PLAST ELASTVERARBEITUNGSMASCH
Publication of DE2407663A1 publication Critical patent/DE2407663A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2554—Flow control means, e.g. valves provided in or in the proximity of filter devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2725—Cleaning; Purging; Avoiding contamination of filters
    • B29C48/273—Cleaning; Purging; Avoiding contamination of filters using back flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/254—Sealing means
    • B29C48/2545—Sealing means for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/694—Cylindrical or conical filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A sieve for plastics processing machines, esp. extruders is fitted between the extruder and the mould. A moving assembly comprising sieve frame, sieve and sieve support plate has a number of parallel rows of holes which constitute the sieve for filtering inhomogeneities out of the plastics. During the extrusion process, this assembly slides slowly relative to the fixed housing so that each row of holes in turn becomes aligned with a row of discharge passages in the fixed housing, which discharge to atmosphere. These passages are on the upstream side of the sieve which, in this region, is cut off from the supply coming from the extruder; thus the flow is reversed through the sieve holes aligned with the passages, causing these holes to be back-flushed. A control valve enable the individual holes of a row to be connected to atmosphere one at a time.

Description

Aufstellung der verwendeten BezugszeichenList of the reference symbols used

1 Gehäuse 24 Druckschraube 2 ßiebträger 25 Grundkörper 3 %Sieb 4 Siebplatte 27 Ansatz 5 Boihrung 6 flansch 29 Einlaßkanalkante 7 Stirnseite 8 Einiaßkanal 31 Vorsieb 9 Auslaßkanal 32 Schieber 10 Rückströmkanal 33 Anschlag 11 Steuerventil 34 Innenkante 12 Ventileinheit 35 Rücksprung 13 Zahnkranz 14 Ritzel 15 Deckleiste 16 Verdrängerkörper 17 Überströmkanal 18 Verteilerkanal 19 Vorsprung 20 Umströinkanal 21 Leitkörper 22 Abströmkanal 23 Dichtleiste1 Housing 24 Pressure screw 2 Sieve holder 25 Basic body 3% sieve 4 Sieve plate 27 Extension 5 Bore 6 flange 29 Inlet channel edge 7 Front side 8 Inlet channel 31 Pre-screen 9 outlet channel 32 slide 10 return channel 33 stop 11 control valve 34 Inner edge 12 valve unit 35 recess 13 ring gear 14 pinion 15 cover strip 16 displacement body 17 overflow channel 18 distributor channel 19 projection 20 bypass channel 21 guide body 22 outflow channel 23 sealing strip

Claims (21)

P a t e n t a n s p r ü c h e :P a t e n t a n s p r ü c h e: Siebeinrichtung für Plastverarbeitungsmaschinen insbesonderte für Extruder, zum Reinigen der herm.oplastischen Kunststoffmasse von Inhomogenitäten, die im wesentlichen ein zwischen Extruder und Formwerkzeug angeordnetes Gehäuse mit einem plattenförmigen SieMträgeP und ein Ventilsystem umfaßt, wobei ein schuhförmiger Kanal des Venteils über die beau:rschlagte Seite des Siebträgers gleitet und einen stets mehrere Bohrungen des Siebträgers um fassenden Ausschnitt abdeckend einen Partialstrom der Masse umlenkt, der im Gegenstrom durch die Siebträgerbohrungen geführt die Verunreinigungen entfernt und diese nach dem Außenraum abzuführen gestattet, , dadurch gekennzeichnet, daß in einem Gehäuse (1) eine aus Siebträger (2), Sieb (3) und Siebplatte (4) bestehende mit in parallelen Reihen angeordneten Bohrungen (5) versehene Siebeinheit (2; 3; 4) gelagert und an mehreren im Gehäuse (1) befindlichen mit Ventileinheiten (12) gekoppelten Rückströmkanälen (10) derartig vorbeibewegbar ist, daß nacheinanderfolgend jeweils zwischen einer Reilhe Bohrungen (5) und einer Reihe Rückströmkanäle (10) Überdeckung vorhanden und für jede einzelne Bohrung (5) mittels eines Steuerventils 11) eine Veibindung zum Außenraum herstellbar ist.Sieve device for plastic processing machines in particular for Extruder, for cleaning the herm.oplastic plastic mass of inhomogeneities, which is essentially a housing arranged between the extruder and the molding tool with a plate-shaped sieve P and a valve system, wherein a shoe-shaped The channel of the valve slides over the exposed side of the portafilter and one always several holes in the portafilter to cover a full cutout Partial flow of the mass diverts, the countercurrent through the portafilter bores removes the impurities and allows them to be discharged to the outside, , characterized in that in a housing (1) one of a portafilter (2), sieve (3) and sieve plate (4) existing with holes arranged in parallel rows (5) provided sieve unit (2; 3; 4) stored and located on several in the housing (1) backflow channels (10) coupled to valve units (12) can be moved past in this way is that successively between a Reilhe bores (5) and one Row of return flow channels (10) overlap available and for each individual bore (5) a connection to the outside space can be established by means of a control valve 11). 2. Siebeinrichtung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, da die Siebeinheit (2; 3; 4) als rotationssymmetrischer vorzugsweise zylindrischer Hohlkörper ausgebildet isti.2. Sieve device according to claim 1, d a d u r c h g e k e n n z e i c h n e t, since the sieve unit (2; 3; 4) is preferably a rotationally symmetrical one cylindrical hollow body is formed. 3. Siebeinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Siebeinheit (2; 3; 4) koaxial im Gehäuse (1) angeordnet ist.3. Sieve device according to claim 1 and 2, characterized in that that the sieve unit (2; 3; 4) is arranged coaxially in the housing (1). 4. Siebeinrichtung nach Anspruch 1 bis 3, dadurch gekenrizeich net, daß die Siebeinheit (2; 3; 4) einerseits auf' einen im Gehäuse (1) eingesetzten Verdrängerkörper (16) mit einem Einlaßkanal (8) und andererseits auf einem Flansch (6) mit Auslaßkanal (9) gelagert ist.4. Sieve device according to claim 1 to 3, characterized by gekenrizeich net, that the sieve unit (2; 3; 4) on the one hand on 'one inserted in the housing (1) Displacement body (16) with an inlet channel (8) and on the other hand on a flange (6) is mounted with the outlet channel (9). 5. Siebeinrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Siebeinheit (2; 3; 4) einen Zahnkranz (13) besitzt und mittels eines Ritzels (14) drehbar ist.5. Sieve device according to claim 1 to 4, characterized in that that the sieve unit (2; 3; 4) has a toothed ring (13) and by means of a pinion (14) is rotatable. 6. Siebeinrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß der im Verdrängerkörper (16) befindliche Einlaßkanal (8) in Überströmkanäle (17) urid im Gehäuse (1) ane,eordnete Verteilerkanäle (18) mündet.6. Sieve device according to claim 1 to 5, characterized in that that the inlet channel (8) located in the displacement body (16) in overflow channels (17) urid in the housing (1) ane, arranged distribution channels (18) opens. 7. Siebeinrichtung nach Anspruch 1 bis 6, dadurch gekenn zeichnet, daß die Verteilerkanäle (18) durch parallel zur Achse des Gehäuses (1) verlaufende lippenartige Vorsprünge (19) voneinander getrennt sind. 7. Sieve device according to claim 1 to 6, characterized in that that the distribution channels (18) through parallel to the axis of the housing (1) lip-like projections (19) are separated from one another. 8. Siebeinrichtung nach Anspruch 1 bis 7, dadurch gekenn -zeichnet, daß in den Vorsprüngen (19) die Rückströmkanäle (10) in einer zur Achse des Gehäuses (1) parallel verlaufenden Reihe ang.eordnet und die Achsen der RücIrströnikanäle (10) senkrecht zur Achse des Gehäuses (1) gerichtet sind. 8. Sieve device according to claim 1 to 7, characterized in that that in the projections (19) the return flow channels (10) in one to the axis of the housing (1) parallel row and the axes of the RücIrstrom canals (10) are directed perpendicular to the axis of the housing (1). 9. Siebeinrichtung nach Anspruch bis 8, dadurch gekennzeichnet, daß die Bohrungen (5) in mehreren voneinander durch größere Abstande getrennten Segmenten auf dem Umfang der Sieb einheit (2; 3; 4) verteilt angeordnet sind.9. Sieve device according to claim 8, characterized in that the bores (5) in several segments separated from one another by larger distances on the circumference of the sieve unit (2; 3; 4) are arranged distributed. 10. Siebeinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Siebeinhe-t (2; 3; 4) senkrecht zur.10. Sieve device according to claim 1 and 2, characterized in that that the Siebeinhe-t (2; 3; 4) perpendicular to the. Achse des Gehäuses (1) angeordnet ist. Axis of the housing (1) is arranged. 11. Siebeinrichtung nach Anspruch 1; 2 und 10, dadurch ekennzeichnet, daß die Stirnseiten der Siebeinheit (2; 3; 4) einerseits von einem Grundkörper ( mit einem Leitkörper (21) und andererseits von einem auf dem Leitkörper (21) mit einer Mutter (28) befestigten Deckel (26) gebildet werden und die Siebeinheit (2; 3; 4) im Gehäuse (q) drehbar gelagert ist, 11. Sieve device according to claim 1; 2 and 10, characterized in that that the end faces of the sieve unit (2; 3; 4) on the one hand by a base body ( with a guide body (21) and on the other hand with one on the guide body (21) a nut (28) attached cover (26) are formed and the sieve unit (2; 3; 4) is rotatably mounted in the housing (q), 12. Siebeinrichtung nach Anspruch 1; 2; 10 und 11, dadurch gekennzeichnet, daß die Bohrungen (5) auf einem Segment der Siebeinheit (2; 3; 4) angeordnet sind, das durch die Einlaßkanalkanten (29) begrenzt ist.12. Sieve device according to claim 1; 2; 10 and 11, characterized in that the bores (5) on a segment of the Sieve unit (2; 3; 4) are arranged, which is limited by the inlet channel edges (29) is. 13. Siebeinrichtung nach Anspruch 1; 2 und 10 bis 12, dadurch gekennzeichnet, daß die Siebeinheit (2; 3; 4) Abströinia näle (22) besitzt, die auf der den Bohrungen (5) gegenüberliegenden Seite der Siebeinheit (2; 3; 4) angeordnet und durch die Auslaßkanalkanten (30) begrenzt sind, 13. Sieve device according to claim 1; 2 and 10 to 12, characterized in that that the sieve unit (2; 3; 4) Abstrinia nails (22) has on the the bores (5) opposite side of the sieve unit (2; 3; 4) arranged and through the Outlet channel edges (30) are limited, 14. Siebeinrichtung nach Anspruch 1; 2 und 10 bis 13, dadurch gekennzeichnet, daß im Gehäuse (1) mit I?ückströmkanälen (10) versehene an die Mantelfläche der Sieb ein heit (2; 3; 4) anpreßbare Dichtleisten (23) vorhanden sind.14. Sieve device according to claim 1; 2 and 10 to 13, characterized in that in the housing (1) with backflow channels (10) provided on the outer surface of the sieve a unit (2; 3; 4) press-on sealing strips (23) are present. 15. Siebeinrichtung nach Anspruch 1; 2 und 10 bis 14, dadurch gekennzeichnet, daß das Steuerventil (11) von der Dichtleiste (23) getrennt im Gehäuse (1) angeordnet ist.15. Sieve device according to claim 1; 2 and 10 to 14, characterized in that that the control valve (11) is arranged separately from the sealing strip (23) in the housing (1) is. 16. Siebeinrichtung nach Anspruch 1 2 und 10 bis 14; dadurch gekennzeichnet, daß an die Dichtleiste (23) ein rohrförmiges durch eine Druckschraube (24) anpr eßbar es Steuerventil (11) anliegt.16. Sieve device according to claim 1 2 and 10 to 14; characterized, that to the sealing strip (23) a tubular anpr by a pressure screw (24) edible there is control valve (11). 17. Siebeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Siebeinheit (2; 3; 4) als prismatischer Körper ausgebildet und im Gehäuse (1) senkrecht zu dessen Achse verschiebbar angeordnet ist.17. Sieve device according to claim 1, characterized in that the Sieve unit (2; 3; 4) designed as a prismatic body and perpendicular in the housing (1) is arranged displaceably to the axis. 18. Sieboinrichtung nach Anspruch 1 und 17, dadurch gekennzeichnet, daß im Gehäuse (1) an der Rückseite der Siebeinheit (2; 3; 4) ein Schieber (32) mit Anschlag (33) vorhanden ist.18. Sieve device according to claim 1 and 17, characterized in that that in the housing (1) on the back of the sieve unit (2; 3; 4) a slide (32) with stop (33) is present. 19. Siebeinrichtung nach Anspruch 1 bis 18, dadurch gekeun zeichnet, daß das Steuerventil (11) in der Ventileinheit (12) als Hahnküken ausgebildet ist und soviel Durchgangsbohrungen besitzt, .vie Rückströmkanäle (10) in einer Reihe vorhanden sind.19. Sieve device according to claim 1 to 18, characterized by gekeun, that the control valve (11) in the valve unit (12) is designed as a cock plug and as many through bores .vie return flow channels (10) in a row available. 20. Siebeinrichtung nach Anspruch 1 bis 19, dadurch gekenn zeichnet, daß die Achsen der Durchgangsbohrungen im Steuerventil (11) gegeneinander in der Winkellage versetzt sind, so daß stets nur eine Bohrung (5) der Siebeinheit (2; 3; 4) nacheinandeo über den Rückströmkanal (10) mit dem Außenraum verbindbar ist.20. Sieve device according to claim 1 to 19, characterized in that that the axes of the through bores in the control valve (11) against each other in the Angular position are offset so that only one bore (5) of the sieve unit (2; 3; 4) can be connected to the outside space one after the other via the return flow channel (10). 21. Sieb einrichtung nach Anspruch 1 bis 18, dadurch gekennzeichnet, daß das Steuerventil (11) in der Ventilein-Heit (12) als Flach- oder Kolbenschieber ausgebildet ist und nur eine einzige Durdchgangsbohrung besitzt, so daß nacheinanderfolgend für jede eizelne Bohrung (5) der Siebeinheit (2;. 3; 4) über den Rückströmkanal (10) die Verbindung mit dem Außenraum herstellbar ist.21. Sieve device according to claim 1 to 18, characterized in that that the control valve (11) in the valve unit (12) as a flat or piston slide is formed and has only a single through hole, so that one after the other for each individual bore (5) of the sieve unit (2; 3; 4) via the return flow channel (10) the connection with the outside space can be established.
DE19742407663 1973-03-08 1974-02-18 Sieving extruded plastics on way to mould - using sieve which is continuously back flushed one hole at a time Pending DE2407663A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD169300A DD102635A1 (en) 1973-03-08 1973-03-08

Publications (1)

Publication Number Publication Date
DE2407663A1 true DE2407663A1 (en) 1974-09-12

Family

ID=5490340

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742407663 Pending DE2407663A1 (en) 1973-03-08 1974-02-18 Sieving extruded plastics on way to mould - using sieve which is continuously back flushed one hole at a time

Country Status (3)

Country Link
DD (1) DD102635A1 (en)
DE (1) DE2407663A1 (en)
SU (1) SU956277A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418074A1 (en) * 1978-02-23 1979-09-21 Lavorazione Mat Plast SCREW EXTRUDER FOR THERMOPLASTIC SYNTHETIC FOAMS
DE2947673A1 (en) * 1979-11-27 1981-06-04 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Screw extruder filter - with revolving back flushing chamber for filter clearance
EP0072149A1 (en) * 1981-08-05 1983-02-16 Cresta Technology Limited Improvements relating to filtration devices
DE3430992A1 (en) * 1983-11-03 1985-06-13 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Filter device
DE3419822A1 (en) * 1984-05-26 1985-11-28 Werner & Pfleiderer, 7000 Stuttgart FILTER DEVICE FOR SCREW EXTRUDERS
US4568459A (en) * 1983-11-03 1986-02-04 Hermann Berstorff Maschinenbau Gmbh Filtering device
EP0379966A2 (en) * 1989-01-25 1990-08-01 Gneuss Kunststofftechnik Gmbh Filtering apparatus for cleaning plastics melts
WO2012003520A1 (en) * 2010-07-05 2012-01-12 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Filtering device for fluids
CN102529063A (en) * 2012-01-16 2012-07-04 王敬达 Filtering device of high polymer material extruder
CN104029373A (en) * 2014-06-25 2014-09-10 魏正才 Double-plate type filter without replacing filter screen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418074A1 (en) * 1978-02-23 1979-09-21 Lavorazione Mat Plast SCREW EXTRUDER FOR THERMOPLASTIC SYNTHETIC FOAMS
DE2947673A1 (en) * 1979-11-27 1981-06-04 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Screw extruder filter - with revolving back flushing chamber for filter clearance
EP0072149A1 (en) * 1981-08-05 1983-02-16 Cresta Technology Limited Improvements relating to filtration devices
DE3430992A1 (en) * 1983-11-03 1985-06-13 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Filter device
US4568459A (en) * 1983-11-03 1986-02-04 Hermann Berstorff Maschinenbau Gmbh Filtering device
DE3419822A1 (en) * 1984-05-26 1985-11-28 Werner & Pfleiderer, 7000 Stuttgart FILTER DEVICE FOR SCREW EXTRUDERS
FR2564774A1 (en) * 1984-05-26 1985-11-29 Werner & Pfleiderer FILTER DEVICE FOR EXTRUDER WITH SCREW
EP0379966A3 (en) * 1989-01-25 1991-03-27 Gneuss Kunststofftechnik Gmbh Filtering apparatus for cleaning plastics melts
EP0379966A2 (en) * 1989-01-25 1990-08-01 Gneuss Kunststofftechnik Gmbh Filtering apparatus for cleaning plastics melts
WO2012003520A1 (en) * 2010-07-05 2012-01-12 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Filtering device for fluids
CN102958670A (en) * 2010-07-05 2013-03-06 奥地利埃瑞玛再生工程机械设备有限公司 Filtering device for fluids
CN102958670B (en) * 2010-07-05 2016-06-01 奥地利埃瑞玛再生工程机械设备有限公司 Defecator for fluid
US9616364B2 (en) 2010-07-05 2017-04-11 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Filtering device for fluids
CN102529063A (en) * 2012-01-16 2012-07-04 王敬达 Filtering device of high polymer material extruder
CN104029373A (en) * 2014-06-25 2014-09-10 魏正才 Double-plate type filter without replacing filter screen
CN104029373B (en) * 2014-06-25 2018-04-06 魏正才 A kind of double-plate not draping filter

Also Published As

Publication number Publication date
DD102635A1 (en) 1973-12-20
SU956277A1 (en) 1982-09-07

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