WO1997009163A1 - Filiere d'extrusion a membrane ondulee reglable - Google Patents

Filiere d'extrusion a membrane ondulee reglable Download PDF

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Publication number
WO1997009163A1
WO1997009163A1 PCT/DE1996/001499 DE9601499W WO9709163A1 WO 1997009163 A1 WO1997009163 A1 WO 1997009163A1 DE 9601499 W DE9601499 W DE 9601499W WO 9709163 A1 WO9709163 A1 WO 9709163A1
Authority
WO
WIPO (PCT)
Prior art keywords
extrusion
membrane
channel
shaft
extrusion die
Prior art date
Application number
PCT/DE1996/001499
Other languages
German (de)
English (en)
Inventor
Michael Meier-Kaiser
Hans Lorenz
Roland Schuchmann
Original Assignee
Röhm 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 Röhm Gmbh filed Critical Röhm Gmbh
Priority to AU69230/96A priority Critical patent/AU6923096A/en
Publication of WO1997009163A1 publication Critical patent/WO1997009163A1/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
    • 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
    • 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
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
    • 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
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B29K2995/0073—Roughness, e.g. anti-slip smooth

Definitions

  • the invention relates to a single-channel or multi-channel extrusion nozzle for the extrusion of thermoplastic, in which at least one channel is equipped with a shaft membrane, which can be adjusted with the aid of adjusting means, with flat sealing surfaces, by means of which the cross-section of the melt flow in this channel can be regulated.
  • part of the flow channel wall is also referred to as a dust bar (see, for example, US Pat. No. 4,372,739).
  • the dust bar is adjusted using suitable adjusting screws. If a different adjustment transverse to the flow direction is desired, this can be achieved by a thin design of the insert and tensioning by means of tension and compression screws.
  • REPLACEMENT SHEET (RULE 26) one-sided curvature is subjected to substantial bending stress. As a result, relatively large adjustment paths in the linear elastic range can be achieved.
  • the invention has for its object to provide an extrusion die that has an efficient adjustment for the flow channel and at the same time avoids sealing problems.
  • the object is achieved by a single-channel or multi-channel extrusion nozzle with an adjustable cross section for at least one melt channel (15), characterized in that the melt channel (15), which is adjustable in cross section, has an elastically deformable shaft membrane element (1) with flat sealing surfaces (2), one Shaft membrane (3) and a more powerful area (4), on which actuating means (5) act.
  • the shaft membrane element (1) according to the invention is provided with flat sealing surfaces (2), so that multiple fits of the nozzle parts are eliminated. In this way, sealing problems are effectively prevented.
  • 1a, b and c Examples of possible shapes of the wave membrane (3) as part of the wave membrane element (1) in a spatial representation; View obliquely from above 1a: oval all around; 1b: U-shaped all around; 1c: elongated like a mountain
  • Fig. 2 longitudinal section through an extrusion nozzle according to the invention with a U-shaped circumferential wave membrane
  • Fig. 5 longitudinal section through an extrusion nozzle according to the invention with sheet metal strips under the actuator
  • Fig. 6 longitudinal section through an extrusion nozzle according to the invention with adjusting element in tie rod design
  • FIG. 7 cross section based on the line BB from FIG. 6
  • Wave membrane element d2 Thickness of the wave membrane (3)
  • d3 Distance of the slots in the tie rod
  • d4 Width of the slots in the tie rod
  • the extrusion nozzle according to the invention can be designed in one or more channels.
  • An essential part of an extrusion nozzle according to the invention is a flexible flow channel wall, which is designed in the form of a wave membrane element (1) with flat sealing surfaces (2).
  • at least one of the melt channels (15) is provided with a wave membrane element (1).
  • the wave membrane element (1) consists of a continuous piece of steel and has the actual tensile or compression elastic wave membrane (3) with a thickness 02 and a more pronounced area (4) with a thickness d-j.
  • the shaft membrane (3) can be bent perpendicular to the flow direction by the transmission of the compressive or tensile forces from the actuating elements (5) to the region (4) with a stronger design. This ensures that there are no impermissibly high strains in the direction of flow.
  • the thickness d2 of the wave membrane (3) is in the range of approx. 0.5 - 1.5 mm.
  • of the more pronounced area (4) can be approximately 2 to 5 mm.
  • the wave membrane (3) of the wave membrane element (1) can be designed in various ways. It can e.g. oval (Fig. 1a), U-shaped (Fig. 1b) or also mountain-like elongated (Fig. 1 c).
  • the shaft membrane element (1) is connected at the sealing surfaces (2) to the lower half of the nozzle body (6) in a flat manner.
  • the shape of the flow channel bottom of the lower half of the nozzle body can be adapted to the shape of the wave membrane (3) (FIG. 4).
  • the actuating means (5) it can be, for. B. are a series of adjusting screws, which are arranged transversely to the direction of flow (F) over the more strongly executed area (4) of the shaft membrane element (1). If necessary, the set screws can be adjusted by means of electric motors, which can be controlled via control loops.
  • z. B. expansion bolts or piezotranslators can be used as adjusting elements (5).
  • can advantageously be achieved by arranging a sheet metal strip (7) over the more pronounced area (4) of the wave membrane element (FIG. 5).
  • This offers the advantage that the stiffness of the more pronounced area (4) of the shaft membrane element can be easily varied by selecting or replacing the sheet metal strip (7).
  • This increases the rigidity only transversely to the direction of flow (F) and not longitudinally to it, which means that the flexibility of the wave membrane (3) remains practically unaffected.
  • the thickness of the metal strip (7) can, for. B. from 0.5 to 5 mm.
  • the adjustment range of the shaft membrane can be doubled if the shaft membrane element (1) or the shaft membrane (3) cannot be deformed by compressive forces but also by tensile forces. This can advantageously be achieved by using a tie rod system.
  • a corresponding arrangement is shown by way of example in FIGS. 6 and 7.
  • the tie rod (13) is part of the shaft membrane element (1) and divided by tie rod slots (14) at intervals dß of approx. 1 to 3 mm with a width d4 of approx. 0.1 to 0.5 mm in order to increase the Avoid lateral rigidity (see Figure 7).
  • Slat plates (12) are slid onto the tie rod (13), the thickness d3 of which advantageously corresponds to the spacing of the tie rod slots.
  • the lamella sheets (12) have cutouts for receiving the tie rod (13) and one Form block (10).
  • a form block (10) sits in several, z. B. 3 to 20 lamella sheets (12).
  • the form block (10) is connected via a connecting bolt (8) to an upper pull plate (9) and a lower pressure plate (11).
  • the tension plate (9) and the pressure plate (11) serve to better distribute the forces across the width which are present between the block (10) and the lamella plates (12).
  • the connecting bolt (8) has an internal thread in its upper part, into which an adjusting screw is screwed in as an adjusting means (5).
  • the extrusion nozzle according to the invention is suitable for the extrusion of thermoplastics such as. B. polyvinyl chloride, polycarbonate, polymethyl methacrylate or polyethylene.
  • thermoplastics such as. B. polyvinyl chloride, polycarbonate, polymethyl methacrylate or polyethylene.
  • multi-layer foils or multi-layer plastic plates with particularly uniform layer thicknesses can be produced in the embodiment as a multi-channel nozzle. Due to the flat sealing surfaces, the risk of leaks is very low even after repeated cleaning. This ensures high operational reliability and contributes to trouble-free extrusion operation.

Landscapes

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

Abstract

L'invention concerne une filière d'extrusion comportant un ou plusieurs canaux de section modulable pour au moins un canal de filage à chaud (15), qui se caractérise en ce que le canal de filage à chaud (15) de section modulable comporte un élément membranaire ondulé (1) à déformation élastique muni de surfaces d'étanchéité (2) planes, une membrane ondulée (3) et une zone (4) à structure renforcée sur laquelle agissent des éléments de réglage (5).
PCT/DE1996/001499 1995-09-01 1996-08-09 Filiere d'extrusion a membrane ondulee reglable WO1997009163A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69230/96A AU6923096A (en) 1995-09-01 1996-08-09 Extrusion die with adjustable corrugated diaphragm

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29514043.7 1995-09-01
DE29514043U DE29514043U1 (de) 1995-09-01 1995-09-01 Extrusionsdüse mit verstellbarer Wellenmembran

Publications (1)

Publication Number Publication Date
WO1997009163A1 true WO1997009163A1 (fr) 1997-03-13

Family

ID=8012486

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/001499 WO1997009163A1 (fr) 1995-09-01 1996-08-09 Filiere d'extrusion a membrane ondulee reglable

Country Status (3)

Country Link
AU (1) AU6923096A (fr)
DE (1) DE29514043U1 (fr)
WO (1) WO1997009163A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1112834A1 (fr) * 1999-12-30 2001-07-04 EXTRUSION DIES, Inc. Ensemble à membrane pour filière d'extrusion
CN117416026A (zh) * 2023-10-16 2024-01-19 亿策科技有限公司 一种蜂窝状泡沫吸波材料、制备方法及加工设备
CN117416026B (zh) * 2023-10-16 2024-06-11 亿策科技有限公司 一种蜂窝状泡沫吸波材料、制备方法及加工设备

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535930C1 (de) 1995-09-27 1997-01-09 Heinz Dr Ing Gros Vorrichtung zur veränderlichen Begrenzung eines flachen Fließkanals und Verfahren zum Austragen einer Massebahn mit veränderlicher Geometrie
CN1083776C (zh) * 1996-07-26 2002-05-01 西铁城钟表株式会社 打印机用步进马达的传动结构
DE19643799A1 (de) * 1996-10-30 1997-08-07 Roehm Gmbh Koextrusionsadapter
US6109592A (en) * 1997-06-16 2000-08-29 Extrusion Dies, Inc. Flow control device and apparatus for mounting same
US6206680B1 (en) 1998-03-17 2001-03-27 Extrusion Dies, Inc. Extrusion die membrane
US6367776B1 (en) 1999-04-21 2002-04-09 Extrusion Dies, Inc. Flow control device and apparatus for mounting same
RU2599399C2 (ru) 2010-12-30 2016-10-10 Юнайтед Стэйтс Джипсум Компани Распределитель суспензии, система и способ для их использования
US10076853B2 (en) 2010-12-30 2018-09-18 United States Gypsum Company Slurry distributor, system, and method for using same
US9999989B2 (en) 2010-12-30 2018-06-19 United States Gypsum Company Slurry distributor with a profiling mechanism, system, and method for using same
US9296124B2 (en) 2010-12-30 2016-03-29 United States Gypsum Company Slurry distributor with a wiping mechanism, system, and method for using same
CN103906608B (zh) 2010-12-30 2016-05-18 美国石膏公司 浆料分配系统和方法
CA2851536C (fr) 2011-10-24 2020-03-10 United States Gypsum Company Raccord d'ecoulement a branches multiples pour distribution de boues
US10293522B2 (en) 2011-10-24 2019-05-21 United States Gypsum Company Multi-piece mold and method of making slurry distributor
KR102081702B1 (ko) * 2011-10-24 2020-02-26 유나이티드 스테이츠 집섬 컴파니 슬러리 분배 시스템용 유체 분할기
US10059033B2 (en) 2014-02-18 2018-08-28 United States Gypsum Company Cementitious slurry mixing and dispensing system with pulser assembly and method for using same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125146B (de) * 1959-08-07 1962-03-08 J H Benecke Fa Breitschlitzduese zum Auspressen von thermoplastischen Kunststoffmassen
DE2450662A1 (de) * 1973-10-24 1975-05-07 Leesona Corp Spritzform
JPS58220707A (ja) * 1982-06-17 1983-12-22 Mitsubishi Heavy Ind Ltd 押出成形用ダイ
EP0484841A1 (fr) * 1990-11-05 1992-05-13 Röhm Gmbh Filière d'extrusion pour la fabrication de bandes planes en matière thermoplastique
JPH05228975A (ja) * 1992-02-25 1993-09-07 Toray Ind Inc 共押出装置
DE4400069C1 (de) * 1994-01-04 1995-04-06 Heinz Dr Ing Gros Einstellbare Drossel mit flachem Kanalquerschnitt

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125146B (de) * 1959-08-07 1962-03-08 J H Benecke Fa Breitschlitzduese zum Auspressen von thermoplastischen Kunststoffmassen
DE2450662A1 (de) * 1973-10-24 1975-05-07 Leesona Corp Spritzform
JPS58220707A (ja) * 1982-06-17 1983-12-22 Mitsubishi Heavy Ind Ltd 押出成形用ダイ
EP0484841A1 (fr) * 1990-11-05 1992-05-13 Röhm Gmbh Filière d'extrusion pour la fabrication de bandes planes en matière thermoplastique
JPH05228975A (ja) * 1992-02-25 1993-09-07 Toray Ind Inc 共押出装置
DE4400069C1 (de) * 1994-01-04 1995-04-06 Heinz Dr Ing Gros Einstellbare Drossel mit flachem Kanalquerschnitt

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
GROSS H: "NEUES WERKZEUGKONZEPT FUR DIE COEXTRUSION", PLASTVERARBEITER, vol. 46, no. 3, 1 March 1995 (1995-03-01), pages 86, 89/90, 92, 94, XP000505119 *
PATENT ABSTRACTS OF JAPAN vol. 008, no. 073 (M - 287) 5 April 1984 (1984-04-05) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 679 (M - 1527) 14 December 1993 (1993-12-14) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1112834A1 (fr) * 1999-12-30 2001-07-04 EXTRUSION DIES, Inc. Ensemble à membrane pour filière d'extrusion
CN117416026A (zh) * 2023-10-16 2024-01-19 亿策科技有限公司 一种蜂窝状泡沫吸波材料、制备方法及加工设备
CN117416026B (zh) * 2023-10-16 2024-06-11 亿策科技有限公司 一种蜂窝状泡沫吸波材料、制备方法及加工设备

Also Published As

Publication number Publication date
AU6923096A (en) 1997-03-27
DE29514043U1 (de) 1995-11-30

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