EP1040910B1 - Press pad - Google Patents

Press pad Download PDF

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Publication number
EP1040910B1
EP1040910B1 EP99104249A EP99104249A EP1040910B1 EP 1040910 B1 EP1040910 B1 EP 1040910B1 EP 99104249 A EP99104249 A EP 99104249A EP 99104249 A EP99104249 A EP 99104249A EP 1040910 B1 EP1040910 B1 EP 1040910B1
Authority
EP
European Patent Office
Prior art keywords
threads
press pad
thread
pad according
press
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.)
Expired - Lifetime
Application number
EP99104249A
Other languages
German (de)
French (fr)
Other versions
EP1040910A1 (en
Inventor
Walter Dr. Best
Ralf Dr. Kaldenhoff
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.)
Heimbach GmbH and Co KG
Original Assignee
Thomas Josef Heimbach and Co 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 Thomas Josef Heimbach and Co GmbH filed Critical Thomas Josef Heimbach and Co GmbH
Priority to AT99104249T priority Critical patent/ATE210553T1/en
Priority to EP99104249A priority patent/EP1040910B1/en
Priority to DE59900537T priority patent/DE59900537D1/en
Priority to CZ2000667A priority patent/CZ295280B6/en
Priority to HU0000940A priority patent/HUP0000940A3/en
Priority to CN00103671A priority patent/CN1108919C/en
Priority to PL00338721A priority patent/PL189938B1/en
Priority to US09/515,924 priority patent/US6342457B1/en
Priority to AU20645/00A priority patent/AU734059B2/en
Publication of EP1040910A1 publication Critical patent/EP1040910A1/en
Application granted granted Critical
Publication of EP1040910B1 publication Critical patent/EP1040910B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/061—Cushion plates
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/12—Threads containing metallic filaments or strips
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/18—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • D04C1/12—Cords, lines, or tows
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/413—Including an elastic strand
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/425—Including strand which is of specific structural definition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/425—Including strand which is of specific structural definition
    • Y10T442/438—Strand material formed of individual filaments having different chemical compositions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/444—Strand is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/45—Knit fabric is characterized by a particular or differential knit pattern other than open knit fabric or a fabric in which the strand denier is specified
    • Y10T442/456—Including additional strand inserted within knit fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/45—Knit fabric is characterized by a particular or differential knit pattern other than open knit fabric or a fabric in which the strand denier is specified
    • Y10T442/456—Including additional strand inserted within knit fabric
    • Y10T442/463—Warp knit insert strand
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/475—Including a free metal or alloy constituent

Definitions

  • the invention relates to a press pad for use in Laminating presses with a textile thread system, with meshed Threads.
  • layer materials for example decorative coated chipboard
  • laminating presses which as low or high pressure floor presses or Short-cycle presses can be designed. So the pressure of the press plates over the entire surface and evenly on the material to be pressed is transferred between the material to be pressed and the Press plates press pads inserted.
  • the press pads must high pressures and also those occurring in such presses Can withstand temperatures and they have to be in be able to withstand the heat emanating from the press plates to transfer quickly and without large losses to the pressed material. It is also desirable to use a press pad to process pressed material of different formats in succession.
  • Press pads are known which are made from a textile thread system exist in the form of a fabric or contain it.
  • DE-B-23 19 593 discloses a press pad, the The basis of a metal screen mesh is that made up of a matrix is enclosed in a silicone elastomer.
  • the press pad according to DE-A-23 38 749 has a glass fiber fabric on which single or all threads with one Plastic, for example a silicone elastomer, impregnated or coated. These threads are consequently elastic and form the padding of the press pad.
  • the corresponding can be found in DE-A-26 50 642.
  • EP-A-0 493 630 a press pad is made from a textile fabric is proposed, in which the fabric is made of aromatic polyamide threads and metal threads is.
  • DE-U-295 18 204 discloses a press pad, in which a portion of the threads has a silicone elastomer and another portion formed as a metal wire can be.
  • DE-U-94 18 984.6 describes a press pad, where the threads are made of different materials, especially of rubber, silicone elastomer or metal as well Combination of these may exist.
  • DE-U-297 21 495 and DE-U-297 21 494 press pad revealed from a fabric in which the individual threads are woven and trained in a special way.
  • EP-A-0 290 653 is a press pad disclosed with a textile thread system in which the thread system of individual longitudinal threads and individual Cross threads exist.
  • the threads running in one direction have a soul thread that also consists of several Threads can be composed of one stitch thread is enveloped.
  • the stitch threads of neighboring Individual threads are not directly connected to one another, but rather coupled over the cross threads that stitch the stitches of the Pass through stitch threads.
  • the disadvantage here is the lack Stability in the direction of the cross threads.
  • the range of variation is for a requirements-based design of the press pad in terms of elongation, elasticity, structural strength and limited thermal conductivity so that not always a optimal result regarding these properties can be achieved is.
  • the invention is therefore based on the object to design a press pad so that a wider Range of possible variations for the interpretation of the Press cushion especially with regard to the aforementioned properties given is.
  • the thread system is a knitted fabric with one another over the surface has or consists of meshed threads, at least essentially a knitted fabric or Knitted fabrics, in particular a warp knitted fabric.
  • Knitwear can be made in various basic weaves, for example fringe, leotard, cloth, satin, velvet and Atlas create, with the different basic ties can also be combined with each other.
  • the amount of threads in the thread system by changing the needle pitch and the stitch density can expand the properties of the press cushion Areas are set according to requirements, especially with regard to elongation, structural strength, pressure elasticity and thermal conductivity.
  • the thread system has additional threads that the stitches of the Assert knitwear. This is an additional one Possibility to influence the properties of the Press pad given.
  • the additional threads can extend in the wale or in the direction of the course. Also an oblique course in which the additional Crossing threads across several rows of stitches is possible.
  • the thread system has thermal conductors made of metal exist or contain metal.
  • metals or metal alloys in particular aluminum, bronze, Stainless steel, copper or brass in question.
  • the thermal conductors can also be used as plastic threads, for example made of aramid or polyimide, with a share of metal fibers or threads can be formed.
  • the thermal conductors should alternate with threads in any order, whose thermal conductivity is lower and the other Take over functions. The change of these threads can both in the direction of the stitches and in the direction of the wales happen.
  • the invention further provides that the thread system has elastic padding threads, the press pad Give pressure elasticity. These can deal with the above-described thermal conductors in the direction of the course and / or alternate wale direction. By selection the course and the amount of such cushioning threads the pressure elasticity adapted to the respective requirements become.
  • the cushion threads can be both part the knitwear itself, as well as partially or completely form the additional threads.
  • the cushion threads can be made of a rubber-elastic material, such as silicone elastomer, fluororubber or rubber. It can be rubbery Material is a metal in powder form or as short fibers included to increase the thermal conductivity of the upholstery threads improve. Upholstery threads are also possible, each have a soul thread that is of an elastic rubber Thread jacket is surrounded.
  • the soul thread can from metal strands or plastic threads from e.g. Aramids, Polyimide, PPS or PEEK or combinations thereof. It can be used as a monofilament, multifilament, twine, spun yarn, braided strand, cord, ribbon or the like and combinations thereof.
  • the thermal conductivity will be improved if at least one Part of the cushion thread is surrounded by metal wire, for example by wrapping, stranding or braiding.
  • the thickness of the cushion thread should be chosen in this way that the usual pressures in the laminating presses i.e. under pressure, the upholstery thread has the same thickness as the metal thermal conductors. This ensures that the thread surfaces during of the pressing process all lie in one plane, whereby maximum contact surface and thus more even Pressure and an optimization of the heat conduction result.
  • the thread system is included in a rubber-elastic matrix
  • this matrix also made of silicone elastomer or fluorosilicone elastomer or other rubber materials can exist.
  • the matrix should also have metal particles Contained in the form of powders or short fibers.
  • Press padding has edge thickening to ensure even To ensure contact pressure over the entire surface.
  • the edge thickening can, for example, by local Increase in the needle pitch and thus the stitch density become.
  • the press pad 1 shown in Figure 1 consists of a Thread system in the form of a warp knitted fabric 2 with additional Upholstery threads, designated 3 by way of example.
  • the warp knitted fabric 2 forms rows of stitches - by way of example designated 4 -, with 4 in each course Upholstery thread 3 the stitches - designated 5 by way of example - enforced.
  • the warp-knitted fabric 2 consists of thermal conductors, namely in this case from copper threads.
  • the cushion threads 3 are designed as silicone elastomer monofilaments. Instead of such Silicone elastomer monofilaments can also be used in the upholstery threads 3 and 4 and further described below Be used.
  • the one made of copper threads Warp knitted fabrics 2 ensure good heat transfer from surface to surface while the cushion threads 3 for the conformability to the pressed material and Ensure the required elasticity of the press plate.
  • the press pad 6 shown in Figure 2 consists of a Warp knit 7. Change in warp knit 7 each have a heat conducting thread 8 and a cushion thread 9 (filled in black) in the course and stitch direction from.
  • the thermal filaments 8 are also here formed as copper threads, while the upholstery threads 9 Display silicone elastomer monofilaments. Your functions are the same as for the press pad 1 according to the figure 1, i.e. the thermal conductors 8 ensure a good one Heat transfer between the two surfaces of the press pad 6, while the cushion threads 9 the pressure elasticity guarantee.
  • a special cushion thread 10 is shown in FIGS. 3 and 4 shown. It has a wire strand 11 as a soul thread made of copper by a thread jacket 12 from a Silicone elastomer is surrounded. The thread jacket 12 is on on the outside with copper wires - exemplary designated with 13 - braided. This gives the Upholstery thread 10 in addition to its elasticity in addition high thermal conductivity.
  • the upholstery thread 10 under pressure has the same thickness as the thermal filaments 8, so that the thread surfaces both the thermal filaments 8 and the Upholstery threads 10 all in one during the pressing process Lay level and thus a maximum contact surface and an even pressure is achieved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Knitting Of Fabric (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Woven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Bipolar Transistors (AREA)
  • Liquid Crystal (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Materials For Medical Uses (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

The cushion (1) with a textile thread system (2, 3) for laminating presses either contains a looped-thread fabric (2) or is entirely made of such a fabric.

Description

Die Erfindung betrifft ein Preßpolster für den Einsatz in Laminierpressen mit einem textilen Fadensystem, mit vermaschten Fäden.The invention relates to a press pad for use in Laminating presses with a textile thread system, with meshed Threads.

Die Herstellung von Schichtmaterialien, beispielsweise dekorativ beschichteten Spanplatten, erfolgt in Laminierpressen, die als Nieder- oder Hochdrucketagenpressen oder Kurztaktpressen ausgebildet sein können. Damit der Druck der Preßplatten vollflächig und gleichmäßig auf das Preßgut übertragen wird, werden zwischen dem Preßgut und den Preßplatten Preßpolster eingelegt. Die Preßpolster müssen hohen Drücken und auch den in solchen Pressen auftretenden Temperaturen standhalten können, und sie müssen in der Lage sein, die von den Preßplatten ausgehende Wärme schnell und ohne große Verluste auf das Preßgut überzuleiten. Außerdem ist es erwünscht, mit einem Preßpolster hintereinander Preßgut verschiedenen Formates zu verarbeiten.The production of layer materials, for example decorative coated chipboard, done in laminating presses, which as low or high pressure floor presses or Short-cycle presses can be designed. So the pressure of the press plates over the entire surface and evenly on the material to be pressed is transferred between the material to be pressed and the Press plates press pads inserted. The press pads must high pressures and also those occurring in such presses Can withstand temperatures and they have to be in be able to withstand the heat emanating from the press plates to transfer quickly and without large losses to the pressed material. It is also desirable to use a press pad to process pressed material of different formats in succession.

Es sind Preßpolster bekannt, die aus einem textilen Fadensystem in Form eines Gewebes bestehen oder es enthalten. Die DE-B-23 19 593 offenbart ein Preßpolster, dessen Basis ein Metallsiebgewebe ist, das in einer Matrix aus einem Silikonelastomer eingeschlossen ist. Das Preßpolster gemäß der DE-A-23 38 749 weist ein Glasfasergewebe auf, bei dem einzelne oder sämtliche Fäden mit einem Kunststoff, beispielsweise einem Silikonelastomer, imprägniert oder beschichtet sind. Diese Fäden sind folglich dickenelastisch und bilden die Polsterung des Preßpolsters. Entsprechendes ist der DE-A-26 50 642 zu entnehmen. In der EP-A-0 493 630 wird ein Preßpolster aus einem textilen Gewebe vorgeschlagen, bei dem das Gewebe aus aromatischen Polyamidfäden und Metallfäden zusammengesetzt ist. Das DE-U-295 18 204 offenbart ein Preßpolster, bei dem ein Anteil der Fäden ein Silikonelastomer aufweist und ein weiterer Anteil als Metalldraht ausgebildet sein kann. Das DE-U-94 18 984.6 beschreibt ein Preßpolster, bei dem die Fäden aus verschiedensten Materialien, insbesondere aus Gummi, Silikonelastomer oder Metall sowie Kombination davon bestehen können. Schließlich sind in den DE-U-297 21 495 und DE-U-297 21 494 Preßpolster aus einem Gewebe offenbart, bei denen die einzelnen Fäden in besonderer Weise verwebt und ausgebildet sind.Press pads are known which are made from a textile thread system exist in the form of a fabric or contain it. DE-B-23 19 593 discloses a press pad, the The basis of a metal screen mesh is that made up of a matrix is enclosed in a silicone elastomer. The press pad according to DE-A-23 38 749 has a glass fiber fabric on which single or all threads with one Plastic, for example a silicone elastomer, impregnated or coated. These threads are consequently elastic and form the padding of the press pad. The corresponding can be found in DE-A-26 50 642. In EP-A-0 493 630 a press pad is made from a textile fabric is proposed, in which the fabric is made of aromatic polyamide threads and metal threads is. DE-U-295 18 204 discloses a press pad, in which a portion of the threads has a silicone elastomer and another portion formed as a metal wire can be. DE-U-94 18 984.6 describes a press pad, where the threads are made of different materials, especially of rubber, silicone elastomer or metal as well Combination of these may exist. Finally are in DE-U-297 21 495 and DE-U-297 21 494 press pad revealed from a fabric in which the individual threads are woven and trained in a special way.

In der gattungsbildenden EP-A-0 290 653 ist ein Preßpolster mit einem textilen Fadensystem offenbart, bei dem das Fadensystem aus einzelnen Längsfäden und einzelnen Querfäden besteht. Die in einer Richtung verlaufenden Fäden weisen eine Seelenfaden auf, der auch aus mehreren Fäden zusammengesetzt sein kann, welcher von einem Maschenfaden umhüllt ist. Die Maschenfäden benachbarter Einzelfäden sind nicht direkt miteinander verbunden, sondern über die Querfäden gekoppelt, die die Maschen der Maschenfäden durchsetzen. Nachteilig dabei ist die mangelnde Stabilität in Richtung der Querfäden.In the generic EP-A-0 290 653 is a press pad disclosed with a textile thread system in which the thread system of individual longitudinal threads and individual Cross threads exist. The threads running in one direction have a soul thread that also consists of several Threads can be composed of one stitch thread is enveloped. The stitch threads of neighboring Individual threads are not directly connected to one another, but rather coupled over the cross threads that stitch the stitches of the Pass through stitch threads. The disadvantage here is the lack Stability in the direction of the cross threads.

Bei den bekannten Preßpolstern ist die Variationsbreite für eine anforderungsgerechte Auslegung des Preßpolsters bezüglich Dehnung, Druckelastizität, Strukturfestigkeit und Wärmeleitfähigkeit begrenzt, so daß nicht immer ein optimales Ergebnis bezüglich dieser Eigenschaften erreichbar ist. Der Erfindung liegt somit die Aufgabe zugrunde, ein Preßpolster so zu gestalten, daß ein breiter Bereich an Variationsmöglichkeiten für die Auslegung des Preßpolsters insbesondere bezüglich der vorgenannten Eigenschaften gegeben ist.In the known press pads, the range of variation is for a requirements-based design of the press pad in terms of elongation, elasticity, structural strength and limited thermal conductivity so that not always a optimal result regarding these properties can be achieved is. The invention is therefore based on the object to design a press pad so that a wider Range of possible variations for the interpretation of the Press cushion especially with regard to the aforementioned properties given is.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Fadensystem eine Maschenware mit über die Fläche untereinander vermaschten Fäden aufweist oder daraus besteht, also zumindest im wesentlichen ein Gestricke oder Gewirke, insbesondere ein Kettengewirke darstellt. Solche Maschenwaren lassen sich in verschiedenartigen Grundbindungen, beispielsweise Franse, Trikot, Tuch, Satin, Samt und Atlas herstellen, wobei die verschiedenen Grundbindungen auch miteinander kombiniert werden können. Hierdurch sowie durch den Mengenanteil der Fäden des Fadensystems durch Veränderung der Nadelteilung und der Maschendichte können die Eigenschaften des Preßpolsters in weiten Bereichen anforderungsgerecht eingestellt werden, insbesondere bezüglich Dehnung, Strukturfestigkeit, Drukkelastizität und Wärmeleitfähigkeit.This object is achieved in that the thread system is a knitted fabric with one another over the surface has or consists of meshed threads, at least essentially a knitted fabric or Knitted fabrics, in particular a warp knitted fabric. Such Knitwear can be made in various basic weaves, for example fringe, leotard, cloth, satin, velvet and Atlas create, with the different basic ties can also be combined with each other. Hereby and by the amount of threads in the thread system by changing the needle pitch and the stitch density can expand the properties of the press cushion Areas are set according to requirements, especially with regard to elongation, structural strength, pressure elasticity and thermal conductivity.

In Ausbildung der Erfindung ist vorgesehen, daß das Fadensystem zusätzliche Fäden aufweist, die die Maschen der Maschenware durchsetzen. Hierdurch ist eine zusätzliche Beeinflussungsmöglichkeit bezüglich der Eigenschaften des Preßpolsters gegeben. Die zusätzlichen Fäden können sich in Maschenstäbchen- oder in Maschenreihenrichtung erstrecken. Auch ein schräger Verlauf, bei dem die zusätzlichen Fäden mehrere Maschenreihen durchkreuzen, ist möglich.In an embodiment of the invention it is provided that the thread system has additional threads that the stitches of the Assert knitwear. This is an additional one Possibility to influence the properties of the Press pad given. The additional threads can extend in the wale or in the direction of the course. Also an oblique course in which the additional Crossing threads across several rows of stitches is possible.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß das Fadensystem Wärmeleitfäden aufweist, die aus Metall bestehen oder Metall enthalten. Dabei kommen als Metalle bzw. Metallegierungen insbesondere Aluminium, Bronze, Edelstahl, Kupfer oder Messing in Frage. Die Wärmeleitfäden können auch als Kunststoffäden, beispielsweise aus Aramid oder Polyimid, mit einem Anteil Metallfasern oder -fäden ausgebildet sein. Dabei sollten sich die Wärmeleitfäden mit Fäden in beliebiger Reihenfolge abwechseln, deren Wärmeleitfähigkeit geringer ist und die andere Funktionen übernehmen. Der Wechsel dieser Fäden kann sowohl in Maschenreihenrichtung als auch in Maschenstäbchenrichtung geschehen.According to a further feature of the invention, that the thread system has thermal conductors made of metal exist or contain metal. Here come as metals or metal alloys, in particular aluminum, bronze, Stainless steel, copper or brass in question. The thermal conductors can also be used as plastic threads, for example made of aramid or polyimide, with a share of metal fibers or threads can be formed. The thermal conductors should alternate with threads in any order, whose thermal conductivity is lower and the other Take over functions. The change of these threads can both in the direction of the stitches and in the direction of the wales happen.

Die Erfindung sieht des weiteren vor, daß das Fadensystem dickenelastische Polsterfäden aufweist, die dem Preßpolster Druckelastizität geben. Diese können sich mit den vorbeschriebenen Wärmeleitfäden in Maschenreihenrichtung und/oder Maschenstäbchenrichtung abwechseln. Durch Auswahl des Verlaufs und der Menge solcher Polsterfäden kann die Druckelastizität den jeweiligen Anforderungen angepaßt werden. Dabei können die Polsterfäden sowohl Teil der Maschenware selbst sein, als auch teilweise oder vollständig die zusätzlichen Fäden bilden.The invention further provides that the thread system has elastic padding threads, the press pad Give pressure elasticity. These can deal with the above-described thermal conductors in the direction of the course and / or alternate wale direction. By selection the course and the amount of such cushioning threads the pressure elasticity adapted to the respective requirements become. The cushion threads can be both part the knitwear itself, as well as partially or completely form the additional threads.

Die Polsterfäden können aus einem gummielastischen Material, wie beispielsweise Silikonelastomer, Fluorkautschuk oder Gummi bestehen. Dabei kann das gummielastische Material ein Metall in Pulverform oder als Kurzfasern enthalten, um die Wärmeleitfähigkeit der Polsterfäden zu verbessern. Es sind auch Polsterfäden möglich, die jeweils einen Seelenfaden aufweisen, der von einem gummielastischen Fadenmantel umgeben ist. Der Seelenfaden kann aus Metallitzen oder Kunststoffäden aus z.B. Aramiden, Polyimid, PPS oder PEEK oder aus Kombinationen daraus bestehen. Er kann als Monofil, Multifil, Zwirn, Spinnfasergarn, geflochtene Litze, Kordel, Band oder dergleichen sowie Kombinationen daraus ausgebildet sein. Die wärmeleitfähigkeit wird noch verbessert, wenn wenigstens ein Teil der Polsterfäden von Metalldraht umgeben ist, beispielsweise durch Umwicklung, Verseilung oder Umflechtung. Die Dicke des Polsterfadens sollte dabei so gewählt werden, daß bei den gebräuchlichen Drücken in den Laminierpressen, d.h. unter Preßbelastung, der Polsterfaden die gleiche Dicke annimmt wie die Wärmeleitfäden aus Metall. Dies gewährleistet, daß die Fadenoberflächen während des Preßvorgangs sämtlich in einer Ebene liegen, wodurch sich maximale Anpreßfläche und damit gleichmäßiger Andruck sowie eine Optimierung der Wärmeleitung ergeben.The cushion threads can be made of a rubber-elastic material, such as silicone elastomer, fluororubber or rubber. It can be rubbery Material is a metal in powder form or as short fibers included to increase the thermal conductivity of the upholstery threads improve. Upholstery threads are also possible, each have a soul thread that is of an elastic rubber Thread jacket is surrounded. The soul thread can from metal strands or plastic threads from e.g. Aramids, Polyimide, PPS or PEEK or combinations thereof. It can be used as a monofilament, multifilament, twine, spun yarn, braided strand, cord, ribbon or the like and combinations thereof. The thermal conductivity will be improved if at least one Part of the cushion thread is surrounded by metal wire, for example by wrapping, stranding or braiding. The thickness of the cushion thread should be chosen in this way that the usual pressures in the laminating presses i.e. under pressure, the upholstery thread has the same thickness as the metal thermal conductors. This ensures that the thread surfaces during of the pressing process all lie in one plane, whereby maximum contact surface and thus more even Pressure and an optimization of the heat conduction result.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß das Fadensystem in eine gummielastische Matrix aufgenommen ist, wobei diese Matrix ebenfalls aus Silikonelastomer oder Fluorsilikonelastomer oder anderen Gummiwerkstoffen bestehen kann. Zur Verbesserung der Wärmeleitfähigkeit sollte die Matrix ebenfalls Metallteilchen in Form von Pulvern oder Kurzfasern enthalten.In a further embodiment of the invention, that the thread system is included in a rubber-elastic matrix is, this matrix also made of silicone elastomer or fluorosilicone elastomer or other rubber materials can exist. To improve thermal conductivity the matrix should also have metal particles Contained in the form of powders or short fibers.

Schließlich ist nach der Erfindung vorgesehen, daß das Preßpolster Randverdickungen aufweist, um einen gleichmäßigen Anpreßdruck über die gesamte Fläche zu gewährleisten. Die Randverdickung kann beispielsweise durch lokale Erhöhung der Nadelteilung und somit der Maschendichte erreicht werden.Finally, it is provided according to the invention that Press padding has edge thickening to ensure even To ensure contact pressure over the entire surface. The edge thickening can, for example, by local Increase in the needle pitch and thus the stitch density become.

In der Zeichnung ist die Erfindung an Hand von Ausführungsbeispielen näher veranschaulicht. Es zeigen:

Figur 1
eine Draufsicht auf einen Ausschnitt eines Preßpolsters aus einem Kettengewirke mit zusätzlichen Fäden;
Figur 2
eine Draufsicht auf einen Ausschnitt eines anderen Preßpolsters aus einem Kettengewirke;
Figur 3
die Seitenansicht eines Polsterfadens und
Figur 4
einen Querschnitt durch den Polsterfaden gemäß Figur 3.
In the drawing, the invention is illustrated in more detail using exemplary embodiments. Show it:
Figure 1
a plan view of a section of a press pad from a warp knitted fabric with additional threads;
Figure 2
a plan view of a section of another press pad from a warp knitted fabric;
Figure 3
the side view of an upholstery thread and
Figure 4
3 shows a cross section through the upholstery thread according to FIG. 3.

Das in Figur 1 dargestellte Preßpolster 1 besteht aus einem Fadensystem in Form eines Kettengewirkes 2 mit zusätzlichen Polsterfäden, beispielhaft mit 3 bezeichnet. Das Kettengewirke 2 bildet Maschenreihen - beispielhaft mit 4 bezeichnet -, wobei in jeder Maschenreihe 4 ein Polsterfaden 3 die Maschen - beispielhaft mit 5 bezeichnet - durchsetzt.The press pad 1 shown in Figure 1 consists of a Thread system in the form of a warp knitted fabric 2 with additional Upholstery threads, designated 3 by way of example. The warp knitted fabric 2 forms rows of stitches - by way of example designated 4 -, with 4 in each course Upholstery thread 3 the stitches - designated 5 by way of example - enforced.

Das Kettengewirke 2 besteht aus Wärmeleitfäden, und zwar in diesem Fall aus Kupferfäden. Die Polsterfäden 3 sind als Silikonelastomermonofile ausgebildet. Statt solcher Silikonelastomermonofilen können auch Polsterfäden der in den Figuren 3 und 4 dargestellten und weitere unten beschriebenen Art verwendet werden. Das aus Kupferfäden bestehende Kettengewirke 2 sorgt für einen guten Wärmeübergang von Oberfläche zu Oberfläche, während die Polsterfäden 3 die für die Anschmiegsamkeit zum Preßgut und zur Preßplatte erforderliche Dickenelastizität gewährleisten.The warp-knitted fabric 2 consists of thermal conductors, namely in this case from copper threads. The cushion threads 3 are designed as silicone elastomer monofilaments. Instead of such Silicone elastomer monofilaments can also be used in the upholstery threads 3 and 4 and further described below Be used. The one made of copper threads Warp knitted fabrics 2 ensure good heat transfer from surface to surface while the cushion threads 3 for the conformability to the pressed material and Ensure the required elasticity of the press plate.

Das in Figur 2 dargestellte Preßpolster 6 besteht aus einem Kettengewirke 7. In diesem Kettengewirke 7 wechseln sich jeweils ein Wärmeleitfaden 8 und ein Polsterfaden 9 (schwarz ausgefüllt gezeichnet) in Maschenreihen- und Maschenstäbchenrichtung ab. Die Wärmeleitfäden 8 sind auch hier als Kupferfäden ausgebildet, während die Polsterfäden 9 Silikonelastomermonofile darstellen. Ihre Funktionen sind die gleichen wie bei dem Preßpolster 1 gemäß Figur 1, d.h. die Wärmeleitfäden 8 sorgen für einen guten Wärmeübergang zwischen den beiden Oberflächen des Preßpolsters 6, während die Polsterfäden 9 die Druckelastizität gewährleisten.The press pad 6 shown in Figure 2 consists of a Warp knit 7. Change in warp knit 7 each have a heat conducting thread 8 and a cushion thread 9 (filled in black) in the course and stitch direction from. The thermal filaments 8 are also here formed as copper threads, while the upholstery threads 9 Display silicone elastomer monofilaments. Your functions are the same as for the press pad 1 according to the figure 1, i.e. the thermal conductors 8 ensure a good one Heat transfer between the two surfaces of the press pad 6, while the cushion threads 9 the pressure elasticity guarantee.

In den Figuren 3 und 4 ist ein besonderer Polsterfaden 10 dargestellt. Er weist als Seelenfaden eine Drahtlitze 11 aus Kupfer auf, die von einem Fadenmantel 12 aus einem Silikonelastomer umgeben ist. Der Fadenmantel 12 ist an seiner Außenseite zusätzlich mit Kupferdrähten - beispielhaft mit 13 bezeichnet - umflochten. Dies gibt dem Polsterfaden 10 neben seiner Dickenelastizität zusätzlich eine hohe Wärmeleitfähigkeit. Beim Einsatz solcher Polsterfäden 10 in dem Preßpolster 6 sollte sichergestellt sein, daß der Polsterfaden 10 unter Preßbelastung die gleiche Dicke hat wie die Wärmeleitfäden 8, damit die Fadenoberflächen sowohl der Wärmeleitfäden 8 als auch der Polsterfäden 10 während der Preßvorgangs sämtlich in einer Ebene liegen und damit eine maximale Anpreßfläche und ein gleichmäßiger Andruck erreicht wird.A special cushion thread 10 is shown in FIGS. 3 and 4 shown. It has a wire strand 11 as a soul thread made of copper by a thread jacket 12 from a Silicone elastomer is surrounded. The thread jacket 12 is on on the outside with copper wires - exemplary designated with 13 - braided. This gives the Upholstery thread 10 in addition to its elasticity in addition high thermal conductivity. When using such cushioning threads 10 in the press pad 6 should be ensured be that the upholstery thread 10 under pressure has the same thickness as the thermal filaments 8, so that the thread surfaces both the thermal filaments 8 and the Upholstery threads 10 all in one during the pressing process Lay level and thus a maximum contact surface and an even pressure is achieved.

Claims (12)

  1. Press pad (1, 6) for use in laminating presses with a textile thread system (2, 3, 5; 7, 8, 9) having interlooped threads (5; 8, 9), characterised in that the thread system (2, 3, 5; 7, 8, 9) has a knitted fabric (2, 7) with threads (5; 8, 9) interlooped with each other over the surface, or consists thereof.
  2. Press pad according to Claim 1, characterised in that the thread system has additional threads (3) interspersed in the mesh (5) of the knitted fabric (2).
  3. Press pad according to Claim 1 or 2, characterised in that the thread system (2, 3, 7) has heat conducting threads (8, 10) composed of metal or containing metal.
  4. Press pad according to Claim 3, characterised in that the heat conducting threads (8) alternate with threads (9) of lower conductivity.
  5. Press pad according to one of the claims 1 to 4, characterised in that the thread system (2, 7) has padding threads (3, 9, 10) with thickness elasticity.
  6. Press pad according to Claim 5, characterised in that the padding threads (10) each have a core thread (11) surrounded by a rubber elastic thread coat (12).
  7. Press pad according to Claim 6, characterised in that the thread coat (12) consists of a silicone elastomer or fluorosilicone.
  8. Press pad according to one of the claims 5 to 7, characterised in that at least one part of the padding thread (10) is surrounded by metal wire (13).
  9. Press pad according to one of the claims 1 to 8, characterised in that the thread system is set into a rubber elastic matrix.
  10. Press pad according to Claim 9, characterised in that the matrix consists of silicone elastomer or fluorosilicone elastomer.
  11. Press pad according to Claim 10, characterised in that the matrix contains metal particles.
  12. Press pad according to one of the claims 1 to 11, characterised in that the press pad has edge thickenings.
EP99104249A 1999-03-03 1999-03-03 Press pad Expired - Lifetime EP1040910B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
AT99104249T ATE210553T1 (en) 1999-03-03 1999-03-03 PRESS PAD
EP99104249A EP1040910B1 (en) 1999-03-03 1999-03-03 Press pad
DE59900537T DE59900537D1 (en) 1999-03-03 1999-03-03 press pad
CZ2000667A CZ295280B6 (en) 1999-03-03 2000-02-24 Pressing pad
HU0000940A HUP0000940A3 (en) 1999-03-03 2000-02-29 Printing plate
CN00103671A CN1108919C (en) 1999-03-03 2000-03-01 Press pad
PL00338721A PL189938B1 (en) 1999-03-03 2000-03-01 Hokd-down cushion
US09/515,924 US6342457B1 (en) 1999-03-03 2000-03-01 Pressing cushion
AU20645/00A AU734059B2 (en) 1999-03-03 2000-03-03 Pressing cushion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99104249A EP1040910B1 (en) 1999-03-03 1999-03-03 Press pad

Publications (2)

Publication Number Publication Date
EP1040910A1 EP1040910A1 (en) 2000-10-04
EP1040910B1 true EP1040910B1 (en) 2001-12-12

Family

ID=8237692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104249A Expired - Lifetime EP1040910B1 (en) 1999-03-03 1999-03-03 Press pad

Country Status (9)

Country Link
US (1) US6342457B1 (en)
EP (1) EP1040910B1 (en)
CN (1) CN1108919C (en)
AT (1) ATE210553T1 (en)
AU (1) AU734059B2 (en)
CZ (1) CZ295280B6 (en)
DE (1) DE59900537D1 (en)
HU (1) HUP0000940A3 (en)
PL (1) PL189938B1 (en)

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US6737370B2 (en) 2000-03-21 2004-05-18 Rheinische Filztuchfabrik Gmbh Press pad containing fluoroelastomer or fluorosilicone elastomer priority claim
ATE402809T1 (en) * 2002-07-31 2008-08-15 Rheinische Filztuchfabrik Gmbh PRESS PAD
AU2003298337A1 (en) * 2002-12-18 2004-07-09 N.V. Bekaert S.A. Knitted press pad
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CN104214743B (en) * 2014-08-29 2017-01-25 苏州骏发精密机械有限公司 Grid type LED (Light Emitting Diode) radiator

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Also Published As

Publication number Publication date
EP1040910A1 (en) 2000-10-04
HUP0000940A2 (en) 2000-10-28
HUP0000940A3 (en) 2000-11-28
AU2064500A (en) 2000-09-28
CZ2000667A3 (en) 2000-09-13
PL338721A1 (en) 2000-09-11
US6342457B1 (en) 2002-01-29
AU734059B2 (en) 2001-05-31
CN1108919C (en) 2003-05-21
CN1265971A (en) 2000-09-13
ATE210553T1 (en) 2001-12-15
DE59900537D1 (en) 2002-01-24
HU0000940D0 (en) 2000-05-28
PL189938B1 (en) 2005-10-31
CZ295280B6 (en) 2005-06-15

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