EP1300235B1 - Presspolster - Google Patents

Presspolster Download PDF

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Publication number
EP1300235B1
EP1300235B1 EP01122617A EP01122617A EP1300235B1 EP 1300235 B1 EP1300235 B1 EP 1300235B1 EP 01122617 A EP01122617 A EP 01122617A EP 01122617 A EP01122617 A EP 01122617A EP 1300235 B1 EP1300235 B1 EP 1300235B1
Authority
EP
European Patent Office
Prior art keywords
press pad
threads
pad according
heat conducting
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
EP01122617A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1300235A1 (de
Inventor
Halterbeck Walter
Ralf Kaldenhoff Dr.
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 ES01122617T priority Critical patent/ES2238372T3/es
Priority to PT01122617T priority patent/PT1300235E/pt
Priority to AT01122617T priority patent/ATE290461T1/de
Priority to EP01122617A priority patent/EP1300235B1/de
Priority to DE50105545T priority patent/DE50105545D1/de
Publication of EP1300235A1 publication Critical patent/EP1300235A1/de
Application granted granted Critical
Publication of EP1300235B1 publication Critical patent/EP1300235B1/de
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

Definitions

  • the invention relates to a press pad for use in Laminating presses with a textile carrier with threads, of which form at least a part of thermal conduction, either directly or via contact with other thermal conductors a heat transfer from one outside to the other Outside of the press pad cause, wherein the carrier a cushion layer made of a rubber-elastic material in the region of intersecting threads, characterized characterized in that the thickness of the cushion layer is lower is as that of the wearer and the cushioning layer in such embedded in the carrier is that thermal conductors on both Outer sides of the press pad over the cushion layer protrude having.
  • layered materials for example With decorative laminates chipboard, takes place in lamination presses that are low or high pressure floor presses or short-cycle presses may be formed.
  • Press pads are used, which have the task the pressure over the entire surface and evenly to the pressed material transfer.
  • the press pads have high pressures and also the temperatures present in such press pads can withstand, and they must be able to Heat emanating from the press plates quickly and without transfer large losses to the material to be pressed, so one have high thermal conductivity in this direction.
  • Press pads are usually textile products, wherein There are a variety of different embodiments gives.
  • the generic press pad after the DE-B-23 19 593 has a plain weave metal fabric completely in a matrix layer forming cushion is embedded from a silicone elastomer.
  • the silicone elastomer additives for example made of copper and / or aluminum and / or aluminum bronze and / or graphite and / or ferrosilicon powder, in order to increase the thermal conductivity of the cushion layer be mixed.
  • the Cycle times in the laminating presses always shorter. This sets a quick heat transfer from the heating plates preceded by the material to be pressed, i. the press pads must have a high thermal conductivity in the thickness direction.
  • the known press pad meets these requirements despite the presence of the metal fabric and the Thermal conductivity supporting additives not satisfying.
  • the invention is based on the object, a press pad to make the type mentioned above so that it too suitable for laminating presses with short cycle times, So in particular a faster heat transfer from Ensures the heating plates on the pressed material.
  • This object is achieved by a press pad solved, in which the thickness of the cushion layer is lower as that of the wearer and the cushioning layer in the Carrier is embedded that thermal conductors on both outer sides of the press pad protrude over the cushion layer.
  • the basic idea of the invention is therefore the heat conducting threads at least partially on both outer sides the press pad, so on the flat sides over the To project cushion layer, so that a direct and under the press pressure area contact with the Heating plates on the one hand and to the press plates on the other arises. It has been shown that thereby the Heat transfer significantly accelerated in the thickness direction can be.
  • the thermal conductivity in the thickness direction according to the respective requirements be optimally adapted.
  • the cushion layer will usually be thinner than in the press pad according to DE-B-23 19 593, is with the inventive press pad achieved a material savings, and it is not that easy.
  • the press pad So it is cheaper to manufacture and too transport. In addition, its handling is easier.
  • the press pad used even at high temperatures Can be, should the rubber-elastic material to at least 200 ° C, better still 240 ° C, be resistant.
  • rubber-elastic materials are preferably such in question that their elasticity properties under the pressures and temperatures prevailing in laminating presses maintained over a long time. Suitable for this purpose especially synthetic elastomers, such as silicone elastomers, Fluoroelastomers and / or fluorosilicone elastomers.
  • the rubber-elastic material should preferably have a hardness in the range of 60 to 85 Shore A.
  • the padding layer in a conventional manner in be embedded filling the carrier gap filling, preferably in the middle, that is symmetrical. It exists, however also the possibility of an asymmetrical arrangement.
  • the cushion layer itself should be 15 to 40, preferably 20 to 30 wt.% Of the weight of the entire Preßpolsters form. By different weight proportions, the Padding ability of the press pad to the respective requirements be adjusted.
  • the thickness of the press pad should be preferably in the range of 0.75 to 3 mm.
  • the thermal conductors do not have to be between the outsides go back and forth of the pad, although such an embodiment is preferred. Good thermal conductivity is achieved even if a system of thermal conductors on both sides of the press pad available is and the thermal conductors survive there, if this planteleitfäden in the cushion layer interconnected have, for example, interwoven with each other.
  • the Cyprusleitfäden can be made of metals, especially good thermally conductive metals such as e.g. Copper, brass, aluminum, Silver or alloy thereof. Also Heat conducting carbon and / or combination Metal and carbon come into question.
  • thermal conductors can as well by their number, thickness and arrangement, the thermal conductivity of the press pad in the thickness direction optimally to the be adapted to the respective requirements.
  • the thermal conduction can a soul thread that of at least one wire or ribbon wrapped or twisted around the wires or ribbon are made of a material whose specific Thermal conductivity is greater than that of the core thread.
  • thermal conductors are for example the DE-U-297 21 494 can be seen.
  • both the politicians and the other threads - are basically no restrictions. So can the Filaments as monofilaments, multifilaments, braided threads, fiber yarns, Strands, cables, ribbons, threads, filament yarns and / or wound yarns may be formed.
  • the carrier Having electric cables, either directly or via Contact with other electric wires an electric Conductivity between the outsides of the press pad cause.
  • About such electric cables can be located in Laminating press forming static electricity derived become.
  • the materials for the thermal conductors in the rule are also electrically conductive, the Electric cables at least partially also thermal conductors form, so that even the presence of thermal conductors and their supernatant over the padding layer also for one Derivation of static electricity ensures.
  • the carrier is preferably as coherent textile Formed sheet, wherein the first Training as tissue comes into question.
  • textile thread structures are suitable, for example knitted fabrics, Knitted fabric, thread fabric, spacer fabric or knits.
  • the carrier is designed as a tissue, it has proved to be advantageous if the wefts essentially straight and the warp threads on the outside form protruding cranks and these at least partially form the planteleitfäden.
  • About the diameter of Warp and weft threads can increase the height of the cranks Warp threads are set. So can an enlargement the cranking height by increasing the warp thread diameter and by reducing the weft diameter achieve.
  • the thermal conductivity by the type of weave and by the thread thickness can be adjusted. It can also multi-layered tissue be used.
  • threads are present which have recesses which caused by removal of thread-like parts, and that the material of the cushion layer, the recesses fills.
  • the preparation can be carried out in such a way that first made the carrier and then the thread-like Shares by a dissolving solvent or be removed by burning, and that only then the cushion layer is introduced, for example by means of a squeegee process.
  • This can be the recesses also caused by removal of a soul thread.
  • the invention finally provides, according to a further embodiment, that the press pad Has passageways between the outer sides of the press pad are open, so that the press pad in Thickness direction is permeable.
  • the passageways can for example, from detached threads or thread portions and / or formed by pores in the poster layer be.
  • the press pad 1 has a textile carrier 2, the is designed as a plain weave fabric.
  • the carrier 2 is perpendicular to the plane of the drawing and essentially straight weft threads, designated by way of example with 3.
  • the weft threads 3 are incorporated in warp threads 4, 5, between the weft threads 3, the sides of the press pad change and above and below the Weft threads 3 cranks - exemplified with 6 - form.
  • a cushion layer 7 made of a silicone elastomer.
  • the thickness of the cushion layer 7 is less than the total thickness of the press pad 1, which by the warp threads 4, 5 is specified.
  • Their cranks 6 stand on both Outside of the press pad 1 before.
  • the offsets 6 When used in a lamination press the offsets 6 have direct contact on the one hand to the Schupreßplatten and the other to the press plates. This forms contact surfaces, the to increase under pressure. Since the warp threads 4, 5 the Pages constantly change, they form thermal conductors that the heat from the Schupreßplatten on the press plates and thus transferred to the pressed material.
  • the heat transfer Conducive are also the weft threads 3 and in the padding layer 7 embedded varnish.
  • the weft threads 3 have a core thread 8 of a aromatic polyamide on to the metal wires - by way of example denoted by 9 - are wound.
  • the warp threads 4, 5 are formed in the same way, but with with every second warp 5 of the soul thread removed is, for example, by treatment with a corresponding Solvent or by burning off.
  • the silicone elastomer of Padding layer 7 penetrated, causing the connection between carrier 2 and cushion layer 7 is improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Bipolar Transistors (AREA)
  • Liquid Crystal (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
EP01122617A 2001-09-27 2001-09-27 Presspolster Expired - Lifetime EP1300235B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES01122617T ES2238372T3 (es) 2001-09-27 2001-09-27 Almohadilla de prensado.
PT01122617T PT1300235E (pt) 2001-09-27 2001-09-27 Almofada de pressao
AT01122617T ATE290461T1 (de) 2001-09-27 2001-09-27 Presspolster
EP01122617A EP1300235B1 (de) 2001-09-27 2001-09-27 Presspolster
DE50105545T DE50105545D1 (de) 2001-09-27 2001-09-27 Presspolster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01122617A EP1300235B1 (de) 2001-09-27 2001-09-27 Presspolster

Publications (2)

Publication Number Publication Date
EP1300235A1 EP1300235A1 (de) 2003-04-09
EP1300235B1 true EP1300235B1 (de) 2005-03-09

Family

ID=8178683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122617A Expired - Lifetime EP1300235B1 (de) 2001-09-27 2001-09-27 Presspolster

Country Status (5)

Country Link
EP (1) EP1300235B1 (es)
AT (1) ATE290461T1 (es)
DE (1) DE50105545D1 (es)
ES (1) ES2238372T3 (es)
PT (1) PT1300235E (es)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010001226U1 (de) 2010-01-20 2011-05-26 Helmbach GmbH & Co. KG, 52353 Presspolster
DE202012005265U1 (de) 2012-05-26 2012-06-27 Rolf Espe Presspolster für Ein- und Mehretagenheizpressen mit wärmeleitenden Kontaktschlussfäden in Kett- und/oder Schussrichtung
EP2756947A1 (de) 2013-01-16 2014-07-23 Hueck Rheinische GmbH Presspolster für eine Ein- oder Mehretagenpresse
DE202015006923U1 (de) 2015-10-02 2015-10-16 Rolf Espe Presspolster für den Einsatz in hydraulischen Ein- oder Mehretagenheizpressen
DE202016000367U1 (de) 2016-01-20 2016-02-05 Rolf Espe Presspolster für Ein- und Mehretagenpressen deren Polsterschicht aus Silikonelastomer im 3D-Druckverfahren aufgetragen wird.
DE202017003635U1 (de) 2017-07-11 2017-08-22 Rolf Espe Presspolster mit höherer Wärmeleitfähigkeit und verbesserten Rückstelleigenschaften für die Beschichtung von Holzwerkstoffplatten in hydraulischen Ein- und Mehretagenheizpressen
DE202017003632U1 (de) 2017-07-11 2017-10-20 Rolf Espe Druckausgleichsgewebe, insbesondere Presspolster zur Ausrüstung von hydraulischen Ein- und Mehretagenheizpressen, bestehend aus einem Gewebe mit elastischen Schuss- und/oder Kettfäden

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10337403B3 (de) * 2003-08-13 2004-12-16 Rheinische Filztuchfabrik Gmbh Presspolster
DE202005016935U1 (de) * 2005-10-28 2006-01-26 Espe, Rolf Druckausgleichsgewebe für hydraulische Heizpressenanlagen
GB0608677D0 (en) 2006-05-03 2006-06-14 Marathon Belting Ltd Improvements to press pads
DE102010036539B4 (de) 2010-07-21 2013-04-11 Hueck Rheinische Gmbh Presspolster für eine hydraulische Presse
DE202012004628U1 (de) 2012-05-04 2012-06-15 Rolf Espe Hochtemperaturbeständiges Druckausgleichsgewebe für den Einsatz in hydraulischen Ein- oder Mehretagenheizpressen, Endlos- Doppelbandheizpressen und Formheizpressen.
DE202012004859U1 (de) 2012-05-16 2012-06-27 Rolf Espe Presspolster für den Einsatz in hydraulischen Ein- oder Mehretagenheizpressen mit Faserwerkstoffen, die einen negativen linearen Wärmeausdehnungskoeffizienten aufweisen
KR101885781B1 (ko) * 2017-07-05 2018-08-06 (주)다오코리아 온열 매트
DE202019000828U1 (de) 2019-02-20 2020-02-24 Rolf Espe Presspolster mit hoher Federwirkung auf metallischer Basis für die Beschichtung von Holzwerkstoffplatten und Herstellung von Kunststoffplatten in hydraulischen Ein- und Mehretagenheizpressen.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2319593B2 (de) * 1973-04-18 1976-09-23 Becker & van Hüllen Niederrheinische Maschinenfabrik, 4150 Krefeld Presspolster fuer heizplattenpressen
US6071567A (en) * 1992-03-25 2000-06-06 Reeves Brothers, Inc. Formation of compressible ply containing high melting point thermoplastic microspheres and printing blankets comprising same
DE29721495U1 (de) * 1997-12-05 1998-02-19 Thomas Josef Heimbach GmbH & Co., 52353 Düren Preßpolster
GB9814133D0 (en) * 1998-07-01 1998-08-26 Marathon Belting Ltd Improvements to press pads
PT1033237E (pt) * 1999-03-03 2004-10-29 Heimbach Gmbh Thomas Josef Almofada de compressao
ATE203953T1 (de) * 1999-03-03 2001-08-15 Heimbach Gmbh Thomas Josef Presspolster

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010001226U1 (de) 2010-01-20 2011-05-26 Helmbach GmbH & Co. KG, 52353 Presspolster
EP2347894A2 (de) 2010-01-20 2011-07-27 Heimbach GmbH & Co. KG Presspolster
DE202012005265U1 (de) 2012-05-26 2012-06-27 Rolf Espe Presspolster für Ein- und Mehretagenheizpressen mit wärmeleitenden Kontaktschlussfäden in Kett- und/oder Schussrichtung
EP2666623A2 (de) 2012-05-26 2013-11-27 Hueck Rheinische GmbH Verfahren zur Herstellung eines Presspolsters sowie zugehöriger Elastomerfaden und zugehöriges Presspolster
EP2756947A1 (de) 2013-01-16 2014-07-23 Hueck Rheinische GmbH Presspolster für eine Ein- oder Mehretagenpresse
DE102013100433A1 (de) 2013-01-16 2014-07-31 Hueck Rheinische Gmbh Presspolster für eine Ein- oder Mehretagenheizpresse
DE202015006923U1 (de) 2015-10-02 2015-10-16 Rolf Espe Presspolster für den Einsatz in hydraulischen Ein- oder Mehretagenheizpressen
WO2017055535A1 (de) 2015-10-02 2017-04-06 Hueck Rheinische Gmbh Ein- oder mehretagenheizpresse, verfahren zur herstellung eines presspolsters sowie verwendung desselben
US10773481B2 (en) 2015-10-02 2020-09-15 Hueck Rheinische Gmbh Single or multi-level hot press and use of the same
DE202016000367U1 (de) 2016-01-20 2016-02-05 Rolf Espe Presspolster für Ein- und Mehretagenpressen deren Polsterschicht aus Silikonelastomer im 3D-Druckverfahren aufgetragen wird.
DE202017003635U1 (de) 2017-07-11 2017-08-22 Rolf Espe Presspolster mit höherer Wärmeleitfähigkeit und verbesserten Rückstelleigenschaften für die Beschichtung von Holzwerkstoffplatten in hydraulischen Ein- und Mehretagenheizpressen
DE202017003632U1 (de) 2017-07-11 2017-10-20 Rolf Espe Druckausgleichsgewebe, insbesondere Presspolster zur Ausrüstung von hydraulischen Ein- und Mehretagenheizpressen, bestehend aus einem Gewebe mit elastischen Schuss- und/oder Kettfäden

Also Published As

Publication number Publication date
ATE290461T1 (de) 2005-03-15
PT1300235E (pt) 2005-06-30
ES2238372T3 (es) 2005-09-01
EP1300235A1 (de) 2003-04-09
DE50105545D1 (de) 2005-04-14

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