WO2010015463A1 - Installation d’extrusion comportant une extrudeuse et un dispositif de changement du filtre - Google Patents

Installation d’extrusion comportant une extrudeuse et un dispositif de changement du filtre Download PDF

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Publication number
WO2010015463A1
WO2010015463A1 PCT/EP2009/058180 EP2009058180W WO2010015463A1 WO 2010015463 A1 WO2010015463 A1 WO 2010015463A1 EP 2009058180 W EP2009058180 W EP 2009058180W WO 2010015463 A1 WO2010015463 A1 WO 2010015463A1
Authority
WO
WIPO (PCT)
Prior art keywords
extruder
screen changing
changing device
screen
extrusion
Prior art date
Application number
PCT/EP2009/058180
Other languages
German (de)
English (en)
Inventor
Claus-Heinrich Wente
Marko Seidel
Original Assignee
Kraussmaffei Berstorff Gmbh
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 Kraussmaffei Berstorff Gmbh filed Critical Kraussmaffei Berstorff Gmbh
Publication of WO2010015463A1 publication Critical patent/WO2010015463A1/fr

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
    • B29C48/693—Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • 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
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2562—Mounting or handling of the die
    • 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
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • 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
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2561—Mounting or handling of the screw
    • 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
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B29C48/6912—Arrangements for replacing filters, e.g. with two parallel filters for alternate use the filters being fitted on a single rectilinearly reciprocating slide

Definitions

  • the present invention relates to an extrusion plant with an extruder and a screen changing device, which can be configured in particular as a multi-bolt screen changing device. Furthermore, any further treatment units and feed devices as well as downstream devices can be provided.
  • the extrusion installation can in particular be a compounding installation which has one or more feed devices for materials to be processed and / or one or more additives to be admixed. For precise dosage of these materials and / or additives dosing may be provided.
  • Screen exchangers have been in use in the extrusion industry for a long time and are used to change melt screens that remove contaminants from the melt produced in the extruder before it is extruded and processed through an extruder die.
  • screen changing devices it is usually possible to make the change of a soiled screen with little or no interruption of production.
  • Particularly preferred screen changing devices are used, in which there is no interruption of the melt flow and thus production.
  • multi-bolt screen changing devices in particular two-bolt screen changing devices have proven to be advantageous in which the melt is divided into at least two flow paths, each of which enforce a sieve held in one of the bolts. If now a sieve has to be changed, the flow connection through the other sieve is maintained.
  • Such screen changing devices are usually mounted in special sliding rack, which are approachable, for example via a rail system to an outlet end of an extruder and there connectable with this.
  • start-up screen changing devices are those screen changing devices in which during start-up the melt can be redirected so that it is disposed of in a free area and downstream equipment not polluted. This can be done in multi-bolt screen changing devices, for example in a special bolt position.
  • Object of the present invention is therefore to introduce an extrusion system in which the disadvantages mentioned do not occur and in particular easy to clean, to maintain and is quick and easy to put into operation.
  • an extrusion system according to the invention.
  • This is characterized in that an extruder and a screen changing device are provided and the screen changing device is arranged such that it is pivotable relative to the extruder.
  • the screen changing device can thus be pivoted relative to the extruder at least in a working position and in a maintenance and cleaning position.
  • This has the advantage that an outlet end of the extruder, which cooperates in operation with the screen changing device and is connected to this, can be released easily and defined.
  • the screen changing device is in this case preferably pivotable about a fixed spatial axis relative to the extruder or to its machine bed.
  • pivot axis has the particular advantage that the screen changing device does not cover large distances when removed from the outlet end of the extruder, but in particular moved in defined positions, ie can be pivoted. In this way, a free space can be created in front of the outlet end of the extruder, in which then cleaning and maintenance can be performed easily and quickly.
  • the pivoting allows when arranging the pivot axis in particular lateral distance from the outlet end of the extruder also to keep the space below the outlet end of holding means for the screen changing device, so that the cleaning is further facilitated, as well the accessibility to the extruder tool, which in operation is generally connected to the screen changer, and other downstream devices.
  • a worm pulling can also be done easily at Siebgeschwenkter from the outlet end of the extruder screen changing device. If the screen changing device is in the working position, that is to say it is pivoted in front of and connected to the outlet end, good cleaning beneath the screen changing device is still ensured. This is of particular interest in start-up processes and material changes in which waste material is often ejected past the extruder tool.
  • the screen changing device can be hingedly connected to the extruder.
  • This embodiment is particularly suitable for use in extruders and screen changing devices smaller format, in which advantageously the screen changing device can already be supported directly on the extruder due to their low weight and thus the relative positions are easily and quickly fixed.
  • a rotary joint may be provided, via which the screen changing device is connected to the extruder or a housing thereof.
  • the screen changing device can be arranged on a holding device.
  • a holding device allows a particularly simple mounting of the screen changing device in a defined position relative to the pivot axis.
  • an exchange of the screen changing device on the holding device can thus be made easily and precisely.
  • the holding device may be free-standing or hanging.
  • the holding device for example, in addition to the extruder, with which the screen changing device interacts in operation, set up and possibly also connected to the ground and anchored so.
  • the Installation preferably laterally next to the extruder, so that the pivoting movement takes place about a pivot axis, which is arranged laterally to the outlet end of the extruder.
  • a suspended arrangement of the holding device can also be provided. This has the additional advantage that no floor space is occupied by the holding device, which ensures free accessibility and better cleaning options.
  • the extrusion installation may comprise a space frame, which is designed to accommodate the extruder and the screen changing device and, if appropriate, supply and follow-up devices to be provided.
  • the holding device can be mounted on the space frame, so that a particularly precise alignment of the holding device with the screen changing device to the extruder or its outlet end is made possible.
  • space structures are usually carried out in standardized dimensions, for example Containerforceen and allow pre-assembly of the extrusion plant in the factory, so that the extruder and all ancillary equipment and / or utilities can already be placed there in position and pre-adjusted and tested.
  • the holding device has a swivel arm, on which the screen changing device is held.
  • This swivel arm allows a simple and defined pivoting of the screen changing device about the pivot axis, which is preferably provided laterally of the outlet end of the extruder is.
  • the swivel arm can be articulated on the holding device so that it can be adjusted in an adjustable manner, so that alignment of the screen changing device with the outlet end of the extruder can be carried out easily.
  • the screen changing device can be arranged displaceably on the swivel arm, for example via a holding plate, sliding bearing or a rail system.
  • a displaceability along two substantially mutually perpendicular axes can be provided here.
  • a particular advantage of the present invention is that the pivoting of the screen changing device relative to the extruder in a Wegschwenken the Sieb Touch adopted this undergoes no strong change in location and thus in most cases, both the wiring and any media feeds can remain connected to the screen changing device.
  • This also means that a particularly simple cleaning of the screen changing device can take place, which is still functional.
  • the bolts can be activated.
  • a continuous heating of the screen changing device is It also makes cleaning easier, since the melt remaining in the screen changing device remains soft and thus can be removed more easily.
  • FIG. 1 shows a detail of an extrusion system according to the invention in the
  • Figure 2 is a view rotated with respect to the Figure 1, in which the upper
  • FIG. 1 shows a section of an extrusion system according to the invention.
  • This comprises a space frame 1, which consists in this case of a lower and an upper floor, wherein in the lower floor on a base plate 4, a machine bed 6 is provided for an extruder, not shown, while in an upper, shown by a cut staircase achievable projectile receiving devices for feeders, not shown, for example, storage containers, material handling equipment or feed stations are provided for processed materials and additives.
  • feed chutes these materials can be supplied through the bottom of the upper floor corresponding metering devices 10, 10 ', which are arranged relative to the extruder via adjusting means 8, 8', so that even with different extruder geometries a simple and accurate metering into corresponding feed openings of the extruder is guaranteed.
  • a screen changing device 12 At a discharge end of the extruder not mounted here, a screen changing device 12 is provided, which has two actuating pins 16, by means of which sieves are introduced into the melt flow coming from the outlet end of the extruder.
  • the screen changing device 12 has a docking area 14 for downstream devices, in particular extrusion tools. Here, for example, a granulator could be docked.
  • the Screen changing device 12 itself is firmly connected to the extruder, not shown, so that in the working position safe operation without melt outlet between the extruder and screen changing device 12 is possible.
  • the screen changing device 12 is mounted on a holding device 26, which has a holding column 18 which is fixedly connected to the bottom plate 4 of the space structure 1. For additional support, it is also connected in the upper floor with the space structure. So a particularly firm and stable holder can be guaranteed.
  • a pivot arm 20 is pivotally mounted, which is adjustable in height relative to the support column 18, so that a particularly easy alignment of the screen changing device 12 is made possible to an extruder.
  • a holding plate 22 is provided, are mounted on the sliding bearing 24, by means of which the screen changing device 12 relative to the retaining plate is displaceable.
  • the holding plate 22 is arranged rotatably relative to the pivot arm 20 in order to allow a further simplification of the fine adjustment.
  • the support on the support column 18 offset from the exit end of the extruder and the follower attachment docking area 14 such as an extrusion die there is easy accessibility of the area below the exit end of the extruder and the screen change device, thereby facilitating cleaning.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne une installation d’extrusion comportant une extrudeuse et un dispositif de changement du filtre (12), en particulier un dispositif de changement du filtre à boulons multiples. De tels dispositifs de changement du filtre sont généralement fixés dans des châssis mobiles spéciaux qui peuvent, par exemple, être amenés vers une extrémité de sortie d’une extrudeuse par le biais d’un système de rail et, à cette extrémité, raccordés à l’extrudeuse. L’objectif de la présente invention est de présenter une installation d’extrusion qui soit notamment facile à nettoyer et à entretenir et qui puisse être mise en marche avec rapidité et simplicité. Pour ce faire, une installation d'extrusion comporte une extrudeuse et un dispositif de changement du filtre, le dispositif de changement du filtre étant agencé dans l'installation d'extrusion de telle sorte qu’il puisse être pivoté par rapport à l’extrudeuse. Le dispositif de changement du filtre peut donc être pivoté par rapport à l’extrudeuse pour être amené au moins dans une position de travail et dans une position de maintenance et de nettoyage.
PCT/EP2009/058180 2008-08-08 2009-06-30 Installation d’extrusion comportant une extrudeuse et un dispositif de changement du filtre WO2010015463A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008037011A DE102008037011A1 (de) 2008-08-08 2008-08-08 Extrusionsanlage mit Extruder und Siebwechseleinrichtung
DEDE102008037011.8 2008-08-08

Publications (1)

Publication Number Publication Date
WO2010015463A1 true WO2010015463A1 (fr) 2010-02-11

Family

ID=41278486

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/058180 WO2010015463A1 (fr) 2008-08-08 2009-06-30 Installation d’extrusion comportant une extrudeuse et un dispositif de changement du filtre

Country Status (2)

Country Link
DE (2) DE202008018027U1 (fr)
WO (1) WO2010015463A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016006419U1 (de) 2016-10-17 2016-11-07 Maag Automatik Gmbh Granulieranlage
DE102022128404A1 (de) 2022-10-26 2024-05-02 Coperion Gmbh Modulare Produktionsanlage und Verfahren zum Auslegen einer Produktionsanlage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0925904A1 (fr) * 1997-12-23 1999-06-30 BACHER, Helmut Procédé et dispositif pour changer le tamis d'un dispositif de filtration
EP0960716A1 (fr) * 1998-05-28 1999-12-01 Lindauer Dornier Gesellschaft M.B.H Dispositif pour filtrer des matières thermoplastiques fondues pour une extrudeuse
WO2000007798A1 (fr) * 1998-08-05 2000-02-17 General Electric Company Ensemble de fixation de filiere
DE10234229A1 (de) * 2002-07-27 2004-02-19 Berstorff Gmbh Granuliervorrichtung
EP1438167A1 (fr) * 2001-10-18 2004-07-21 Berstorff GmbH Granulateur sous-marin pourvu d'une conduite d'eau raccordee par une articulation tournante
DE102005033012A1 (de) * 2004-08-12 2006-02-23 Saurer Gmbh & Co. Kg Vorrichtung zum Extrudieren
WO2007076808A1 (fr) * 2005-12-23 2007-07-12 Lindauer Dornier Gesellschaft Mbh Filtre pour matieres en fusion presentant une enveloppe de filtre divisible

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0925904A1 (fr) * 1997-12-23 1999-06-30 BACHER, Helmut Procédé et dispositif pour changer le tamis d'un dispositif de filtration
EP0960716A1 (fr) * 1998-05-28 1999-12-01 Lindauer Dornier Gesellschaft M.B.H Dispositif pour filtrer des matières thermoplastiques fondues pour une extrudeuse
WO2000007798A1 (fr) * 1998-08-05 2000-02-17 General Electric Company Ensemble de fixation de filiere
EP1438167A1 (fr) * 2001-10-18 2004-07-21 Berstorff GmbH Granulateur sous-marin pourvu d'une conduite d'eau raccordee par une articulation tournante
DE10234229A1 (de) * 2002-07-27 2004-02-19 Berstorff Gmbh Granuliervorrichtung
DE102005033012A1 (de) * 2004-08-12 2006-02-23 Saurer Gmbh & Co. Kg Vorrichtung zum Extrudieren
WO2007076808A1 (fr) * 2005-12-23 2007-07-12 Lindauer Dornier Gesellschaft Mbh Filtre pour matieres en fusion presentant une enveloppe de filtre divisible

Also Published As

Publication number Publication date
DE202008018027U1 (de) 2011-05-05
DE102008037011A1 (de) 2010-02-11

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