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WO2011076525A1 - Dispositif d'extrusion de boudins de matière thermoplastique - Google Patents

Dispositif d'extrusion de boudins de matière thermoplastique Download PDF

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Publication number
WO2011076525A1
WO2011076525A1 PCT/EP2010/068459 EP2010068459W WO2011076525A1 WO 2011076525 A1 WO2011076525 A1 WO 2011076525A1 EP 2010068459 W EP2010068459 W EP 2010068459W WO 2011076525 A1 WO2011076525 A1 WO 2011076525A1
Authority
WO
WIPO (PCT)
Prior art keywords
strands
row
nozzles
plastic
continuous casting
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.)
Ceased
Application number
PCT/EP2010/068459
Other languages
German (de)
English (en)
Inventor
Stefan Dahlheimer
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.)
Automatik Plastics Machinery GmbH
Original Assignee
Automatik Plastics Machinery 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 Automatik Plastics Machinery GmbH filed Critical Automatik Plastics Machinery GmbH
Publication of WO2011076525A1 publication Critical patent/WO2011076525A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • B29C48/04—Particle-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
    • B29C48/03—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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • 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
    • B29C48/355—Conveyors for extruded articles
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling

Definitions

  • the invention relates to a device for continuous casting of strands of thermoplastic material, which emerge from at least one straight row of nozzles from a nozzle head for further processing in a granulator.
  • Such a device is shown and described in DE 4 026 337.
  • strands of liquid plastic are pressed out of a series of nozzles to which the plastic is supplied in liquid form.
  • the individual plastic strands emerging from the nozzles drop to one immediately after exiting the nozzles
  • Granulator supplied which provides the desired in this process plastic granules.
  • the invention is therefore based on the object to prevent such Verklebungs part of plastic strands after exiting the nozzle with certainty, according to the invention this is done by a device which is characterized in that parallel and adjacent to a series of nozzle openings at least one hole arrangement is provided which is directed onto the row of strands emerging from the nozzles and charged with a pressurized fluid which, as a fluid veil, flows around the row of leaked strands.
  • Plastic strands obtained immediately after exiting the nozzles which problems of any contact with the first superficially particularly sticky plastic strands is avoided with certainty and the plastic strands in any case superficially cooled reach the chute on which they are then further cooled in a known manner and then granulated can be.
  • the hole arrangement for the admission of the pressure fluid can be designed as a series of individual holes which are arranged as a straight hole arrangement either one-sided or both sides of the nozzles so that immediately after exiting the nozzle openings, the initially still molten plastic strands are sprayed from the side , with which these the holes
  • Adhesion tendency is largely taken.
  • the hole arrangement for the supply of the pressurized fluid can also be designed as a longitudinal gap.
  • a longitudinal gap is compared to a hole assembly with a series of holes a structurally simple design, in which, however, a correspondingly higher demand for pressurized fluid is required.
  • Figure 1 is a side view of the device with the nozzle row for the exit of the plastic strands and adjacent hole arrangements for the admission of a pressurized fluid.
  • Figure 2 is a plan view of the nozzle head with the row of nozzle openings and two
  • FIG. 4 shows the device in a perspective view with a design according to FIG. 1.
  • Figure 1 shows the device in side view.
  • the molten plastic strands 1 emerge from a reactor 2, to which the respective plastic to be processed is supplied in liquid form.
  • a reactor 2 On the underside of the reactor 2 there is a series of nozzles 3 explained in more detail with reference to FIG. 2, from which the plastic in each case emerges as a strand and is collected by a chute 4, which is charged in a known manner with a water flowing down therefrom that the strands guided by the chute and its extension 5 continue to be constantly lapped with water.
  • the two longitudinal gaps 6 and 7 are arranged, from which the pressurized fluid flows out under pressure and, due to the alignment of the longitudinal gaps 6 and 7, directs this directly onto the strands 1.
  • the longitudinal gaps 6 and 7 are supplied with the pressurized fluid via the feeders 8 and 9.
  • the plastic strands 1 to be sliced are immediately supplied with a cooling medium, preferably water, which reaches the plastic strands 1 exiting there directly at the nozzle openings 3 and flows around them, thus ensuring mutual adhesion of the plastic strands with certainty in the direction of the chute 4 prevented.
  • FIG. 2 shows a plan view of the nozzle openings 3.
  • longitudinal columns 6 and 7 can also each have a row of holes with individual holes 10 and 1 1 occur, which are individually arranged side by side so close that practically a
  • FIG. 4 the overall arrangement of a device for continuous casting of strands of thermoplastic material together with the other organs for the processing of Plastic strands shown, with recourse to FIG.
  • a nozzle arrangement and hole arrangement is used, as shown in FIG. In the apparatus of Figure 4, therefore, a series of nozzles 3 is used, which cooperates with the longitudinal columns 6 and 7.
  • the plastic strands 1 guided over the chute 4/5 finally reach the granulator, where they are cut into granules in the desired manner.
  • Essentially water or inerting gas is used as the pressurized fluid, which primarily prevents oxidation of the small plastic strands.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un dispositif d'extrusion de boudins (1) de matière thermoplastique sortant d'au moins une rangée rectiligne de filières (3) d'une tête d'extrusion (2) en vue de leur traitement ultérieur dans un granulateur. Au moins un ensemble de trous (6, 7) est agencé parallèlement à une rangée de filières (3) à proximité de celle-ci, cet ensemble de trous étant dirigé vers la série de boudins (1) sortant des filières (3) et alimenté en un fluide sous pression qui arrose ladite série de boudins sous la forme d'un voile de fluide.
PCT/EP2010/068459 2009-12-23 2010-11-30 Dispositif d'extrusion de boudins de matière thermoplastique Ceased WO2011076525A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009059306A DE102009059306A1 (de) 2009-12-23 2009-12-23 Vorrichtung zum Stranggießen von Strängen aus thermoplastischem Kunststoff
DE102009059306.3 2009-12-23

Publications (1)

Publication Number Publication Date
WO2011076525A1 true WO2011076525A1 (fr) 2011-06-30

Family

ID=43743478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068459 Ceased WO2011076525A1 (fr) 2009-12-23 2010-11-30 Dispositif d'extrusion de boudins de matière thermoplastique

Country Status (3)

Country Link
DE (1) DE102009059306A1 (fr)
TW (1) TW201127590A (fr)
WO (1) WO2011076525A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011106709A1 (de) * 2011-07-06 2013-01-10 Automatik Plastics Machinery Gmbh Verfahren und Vorrichtung zum Herstellen von Granulatkörnern
CN103266359A (zh) * 2013-05-31 2013-08-28 吉铨精密机械(苏州)有限公司 一种丝股铸带头的扩散板

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340563A (en) * 1980-05-05 1982-07-20 Kimberly-Clark Corporation Method for forming nonwoven webs
DE4026337A1 (de) 1990-08-21 1992-02-27 Hench Automatik App Masch Vorrichtung zum abkuehlen und granulieren von schmelzfluessigen straengen
DE19739747A1 (de) * 1997-09-10 1999-03-11 Rieter Automatik Gmbh Stranggießen und Granulieren von Kunststoffsträngen
WO1999032694A1 (fr) * 1997-12-22 1999-07-01 Kimberly-Clark Worldwide, Inc. Procede de formation de feuilles, de fibres, et de bandes continues de base a partir de polymeres thermodurcis
JP2008068517A (ja) * 2006-09-14 2008-03-27 Mitsubishi Chemicals Corp 樹脂ペレットの製造方法
WO2009091073A1 (fr) * 2008-01-15 2009-07-23 Yazaki Corporation Procédé et appareil pour former des fils
US20090258099A1 (en) * 2008-04-11 2009-10-15 Biax Fiberfilm Array of nozzles for extruding multiple cellulose fibers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19933476B4 (de) * 1999-07-16 2006-09-28 Rieter Automatik Gmbh Verfahren und Vorrichtung zur Zuleitung und Behandlung von Kunststoffsträngen
DE102007027543A1 (de) * 2006-11-27 2008-05-29 Bühler AG Stranggranulationsverfahren und -vorrichtung sowie daraus hergestellte Granulate
DE102006058811A1 (de) * 2006-12-13 2008-06-19 Rieter Automatik Gmbh Verfahren und Vorrichtung zur Herstellung von Granulatkörnern

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340563A (en) * 1980-05-05 1982-07-20 Kimberly-Clark Corporation Method for forming nonwoven webs
DE4026337A1 (de) 1990-08-21 1992-02-27 Hench Automatik App Masch Vorrichtung zum abkuehlen und granulieren von schmelzfluessigen straengen
DE19739747A1 (de) * 1997-09-10 1999-03-11 Rieter Automatik Gmbh Stranggießen und Granulieren von Kunststoffsträngen
WO1999032694A1 (fr) * 1997-12-22 1999-07-01 Kimberly-Clark Worldwide, Inc. Procede de formation de feuilles, de fibres, et de bandes continues de base a partir de polymeres thermodurcis
JP2008068517A (ja) * 2006-09-14 2008-03-27 Mitsubishi Chemicals Corp 樹脂ペレットの製造方法
WO2009091073A1 (fr) * 2008-01-15 2009-07-23 Yazaki Corporation Procédé et appareil pour former des fils
US20090258099A1 (en) * 2008-04-11 2009-10-15 Biax Fiberfilm Array of nozzles for extruding multiple cellulose fibers

Also Published As

Publication number Publication date
DE102009059306A1 (de) 2011-06-30
TW201127590A (en) 2011-08-16

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