EP0920983A1 - Coussinet pour presse - Google Patents

Coussinet pour presse Download PDF

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Publication number
EP0920983A1
EP0920983A1 EP98120719A EP98120719A EP0920983A1 EP 0920983 A1 EP0920983 A1 EP 0920983A1 EP 98120719 A EP98120719 A EP 98120719A EP 98120719 A EP98120719 A EP 98120719A EP 0920983 A1 EP0920983 A1 EP 0920983A1
Authority
EP
European Patent Office
Prior art keywords
threads
group
press pad
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.)
Granted
Application number
EP98120719A
Other languages
German (de)
English (en)
Other versions
EP0920983B1 (fr
Inventor
Walter Halterbeck
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
Publication of EP0920983A1 publication Critical patent/EP0920983A1/fr
Application granted granted Critical
Publication of EP0920983B1 publication Critical patent/EP0920983B1/fr
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 fabric that is a first group parallel threads and a second group of parallel ones Has threads of the first group of crossing threads, wherein the threads of the first group consist of metal or one Have metal content and the threads of the second Group consist of rubber-elastic material or one Share of it, and being the threads of the first group to pull the threads of the second group.
  • layer materials for example decorative chipboard coatings
  • laminating presses which as low or high pressure floor presses or short-cycle presses
  • Press pads used to do the job Full pressure on the material to be pressed evenly transfer.
  • the press pads need high pressures as well withstand the temperatures in such presses can, and they must be able to respond to those of the Press plates outgoing heat quickly and without major losses to transfer to the pressed material, so a high thermal conductivity to have in this direction.
  • Press pads are known in the prior art, which are made of a fabric consisting of two types of threads (EP 0 493 630 A1).
  • Threads made of metal or have a metal component around which To improve heat transfer to the pressed material.
  • Threads made of aromatic polyamide EP 0 493 630 A1
  • silicone elastomer DE 295 18 204 U1
  • rubber heat-resistant plastic monofilament or the like
  • the invention thus lies in based primarily on the task of using a press pad to create better thermal conductivity. Another The task is to improve dimensional stability and to provide a smooth surface.
  • the thread density of the threads of the second group is so great that the threads of the first group are only under compression the elastic material of the threads of the second Group go through between them.
  • Basic idea It is therefore the invention, through a special fabric geometry with a very high thread density in the threads of the second group has a positive influence on heat transfer to take.
  • the threads are woven so that the threads of the first group not about the outermost points of the threads of the second group formed level, better still Distance from this level.
  • This training has the Advantage that the threads of the first group when handling the press pad are protected against abrasion. First in case of pressure in the laminating press they get Threads of the first group (metal threads) contact the adjacent ones Surfaces of the press and the material to be pressed and care then for good heat conduction.
  • that the thread density of the threads of the first group is so high is that the area coverage is between 50 and 80%, preferably is between 60 and 70%. This high thread density also promotes thermal conductivity and thus the rapid heating of the pressed material.
  • the threads have a weave with an even distribution of the cranks of the threads of the first group.
  • the number of cranks of the threads of the first group should be between 20 and 30 per cm 2 on each side of the fabric. This high density of the cranks also ensures good heat transfer that is uniform over the surface.
  • the rubber-elastic material has a Shore A hardness of Has 60 to 75. This hardness favors the storage of Threads of the first group and thus a firm tissue bond. In addition, the remaining compressibility remains with this Preserve hardness for a long time.
  • All materials that have rubber-elastic properties and are able to withstand the temperatures in the presses are suitable for the rubber-elastic material. Silicone elastomers are particularly suitable. A foamed rubber-elastic material is recommended, preferably with a specific weight of 0.3 to 0.5 g / cm 3 .
  • Such metal materials should be used for the threads of the first group be used, which have high thermal conductivity to have. As already mentioned above, this is possible especially copper or strength-modified copper alloys on. Because of the firm tissue integration the tendency of copper threads to shrink is counteracted, so that despite the use of this problematic No significant shrinkage found could be. In this way, the high Thermal conductivity and the low price of this material can be used for the press pad according to the invention.
  • the use of is not particularly advantageous annealed copper (hard copper) because it has high strength Has. But also annealed copper (soft copper) comes in question.
  • threads of the first group have a plastic core thread have, which is surrounded by at least one metal wire is, preferably in such a way that the Plastic core thread from the metal wire or wires is completely covered.
  • the coverage happens preferably by wrapping at least one metal wire, expediently a plurality of metal wires one above the other, or by stranding metal wires.
  • Through the Stranding or wrapping of the metal wire or wires occurs in contrast to twisting an almost circular one Thread, which creates a larger contact area Forms top and bottom of the press pad and thus good heat transfer from the press plates to the material to be pressed is achieved.
  • the plastic core thread heat-resistant plastics for example aramids, or Monofilaments made of PPS, PEK, PEEK or the like or glass fiber threads in question.
  • the invention further provides that threads of the second Group surrounded on the outside with at least one metal wire are, and here preferably so that the threads the second group completely with the outside or the metal wires are covered.
  • This has the advantage that the threads of the second group also transfer heat promote, but their cushioning properties not because of the proportion of rubber-elastic material to lose.
  • the threads of the second group are wrapped here too, preferably by twisting or wrapping.
  • Inside the enclosure through the metal wires the threads of the second group can be made entirely of rubber elastic Material, for example a silicone elastomer consist. Better strength, however reached when these threads have a soul thread, that of an extruded shell made of rubber-elastic Material is surrounded. Thereby the soul thread a central thread, e.g. made of aramid, glass fibers, metal etc., have stranded or wound around the metal wires are.
  • the stranded metal wires should be partially S-shaped and partially Z-shaped, this advantageously being done alternately. This can be a Hiking "of the press pad in the press can be avoided effectively.
  • the threads of the second group should get one Diameter of at least 1 mm, preferably at least Have 1.5 mm. They then remain within the tissue essentially stretched out, and promote along with their in relation to the thickness of the threads of the first group high thread density a pronounced cranking of these threads.
  • the threads of the first group should have a diameter of at least 0.15mm that go to 0.3mm can.
  • the press pad 1 shown in Figures 1 and 2 is as a single-layer fabric 2 with extending in the warp direction Longitudinal threads - labeled 3 by way of example - and transverse threads extending in the weft direction - exemplary designated with 4 - trained.
  • the run Cross threads 4 essentially stretched, i.e. you will be not essential due to the integration with the longitudinal threads 3 pressed out of the press pad level while lay the longitudinal threads 3 around the transverse threads 4 and pronounced cranking on the top and bottom - exemplified with 5, 6 form, which are in Flatten operation under pressure and the between the transverse threads 4 through intermediate sections - for example designated 7 - are connected. This way there is a meandering course of the longitudinal threads 3.
  • a longitudinal thread 3 is shown in more detail in FIG. It has a twisted soul thread 8 made of aramid on the six metal wires - exemplary with 9 designated - are beaten according to the type of stranding, and in such a way that the soul thread 8 completely from the Metal wires 9 is wrapped. This results in a very closed and relatively smooth surface of the Longitudinal thread 3, which ensures good contact with the Press plates and to the material to be pressed.
  • the longitudinal thread 3 has a diameter of 0.2 mm.
  • the cross thread 4 shown enlarged in FIG. 4 has a soul thread 10 of 0.2 mm in diameter, which from a Central thread 11 made of aramid and six metal wires - designated by way of example with 12 - consists of the metal wires 12 are stranded around the central thread 11. Of the Metal wire 12 is made of non-annealed copper (Copper hard), which achieves high strength becomes.
  • the soul thread 10 is of an extruded on Elastomer sleeve 13 surrounded by a silicone elastomer. This results in a diameter for the transverse threads 4 of 1.5 mm.
  • the thread density is Cross threads 4 dimensioned so that the distance of the cross threads 4th without longitudinal threads 3 woven in, that is to say in the undeformed state is less than their diameter, i.e. less than 0.2 mm.
  • the longitudinal threads 3 thus dig into that elastic material of the elastomer sheath 13 of the transverse threads 4 on. This not only has the advantage that the longitudinal threads 3 not in the direction of the longitudinal axes of the transverse threads 4 can shift, but force the longitudinal threads 3 to Formation of steep intermediate sections 7.
  • the deformation of the press pad 1 under compression pressure can refer to Figure 5. It can be seen that the cranks 5, 6 of the longitudinal threads 3 are flattened so that result in elongated heat transfer surfaces. The intermediate sections 7 are deformed so that they are almost vertical run between the transverse threads 4, so that short heat transfer distances from one to the other Side of the press pad 1 result. Both ensure one rapid transfer of heat from the heating plates to the pressed material.
  • FIG. 6 shows a cross thread 15 for a thread not shown here shown press pad.
  • the cross thread 15 is suitable also in the press pad 1 according to Figures 1 and 2 application to find. It has an elastomer core 16 made of one Silicon elastomer, which - which is not shown here is - surrounds a soul thread that is in the same Is constructed in the same way as for the transverse thread 4.
  • Metal wires around the elastomer core 16 are exemplary marked with 17 - stranded. After completing the stranding process is the elastomer core 16 over the entire surface of surrounded by the metal wires 17, making it a complete Form metal cladding.
  • the cross thread 15 is therefore for Improvement of the heat transfer through a manufactured with it Suitable press pad, be it as the only metal thread, be it in addition to metal longitudinal threads, be it that the longitudinal threads are formed in the same way like the cross threads 15.
  • Figure 7 shows a transverse thread 18, which is a replacement for or in combination with the transverse thread 15 according to FIG. 6 in one Press pad can be used. He also has an elastomer core 19 made of a silicone elastomer, which - what is not shown here - a soul thread surrounds, which is constructed in the same way as that Cross thread 4.
  • a metal wire 20 is wound around the elastomer core 19, in such a way that it covers the entire area of the elastomer core 19 surrounds and thus a gapless metal coating is formed. It is appropriate that the metal wire 20th of another metal wire in the reverse winding direction is surrounded, so that there is then a two-layer metal covering results. This ensures that even in Bends a complete wrap around the elastomer core 19 is guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Liquid Crystal (AREA)
  • Laminated Bodies (AREA)
  • Bipolar Transistors (AREA)
  • Confectionery (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Surface Heating Bodies (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Braking Systems And Boosters (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Magnetically Actuated Valves (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finger-Pressure Massage (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Building Environments (AREA)
EP98120719A 1997-12-05 1998-10-31 Coussinet pour presse Expired - Lifetime EP0920983B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29721495U 1997-12-05
DE29721495U DE29721495U1 (de) 1997-12-05 1997-12-05 Preßpolster

Publications (2)

Publication Number Publication Date
EP0920983A1 true EP0920983A1 (fr) 1999-06-09
EP0920983B1 EP0920983B1 (fr) 2003-09-10

Family

ID=8049522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98120719A Expired - Lifetime EP0920983B1 (fr) 1997-12-05 1998-10-31 Coussinet pour presse

Country Status (10)

Country Link
EP (1) EP0920983B1 (fr)
AT (1) ATE249334T1 (fr)
CZ (1) CZ294633B6 (fr)
DE (2) DE29721495U1 (fr)
DK (1) DK0920983T3 (fr)
ES (1) ES2203869T3 (fr)
HU (1) HU219898B (fr)
PL (1) PL188168B1 (fr)
PT (1) PT920983E (fr)
SK (1) SK284583B6 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001076861A1 (fr) * 2000-04-08 2001-10-18 Marathon Belting Limited Coussinets de pression
US6342457B1 (en) 1999-03-03 2002-01-29 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Pressing cushion
WO2002026480A1 (fr) * 2000-09-26 2002-04-04 Marathon Belting Limited Tampon de presse
US6413889B1 (en) 1999-03-03 2002-07-02 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Pressing cushion
EP1300235A1 (fr) * 2001-09-27 2003-04-09 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Coussinet pour presse
EP1386723A3 (fr) * 2002-07-31 2004-06-02 RHEINISCHE FILZTUCHFABRIK GmbH Coussinet pour presse
US6780280B2 (en) 2001-09-27 2004-08-24 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Pressing cushion
EP1508433A1 (fr) * 2003-08-13 2005-02-23 RHEINISCHE FILZTUCHFABRIK GmbH Coussinet de presse
WO2007129041A1 (fr) 2006-05-03 2007-11-15 Marathon Belting Limited amÉliorations apportÉes aux patins de presse
DE202010001226U1 (de) 2010-01-20 2011-05-26 Helmbach GmbH & Co. KG, 52353 Presspolster
CN1966794B (zh) * 2005-10-28 2012-02-15 莱茵里希毛毡工厂有限责任公司 用于液压热压设备的压力平衡织物
EP2664450A3 (fr) * 2012-05-16 2016-06-01 Hueck Rheinische GmbH Coussin de presse ainsi que fils d'élastomère résistant aux températures élevées
WO2024141250A1 (fr) 2022-12-30 2024-07-04 Hueck Rheinische Gmbh Coussin de presse comprenant un tissu et presse à chaud

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1040909B1 (fr) * 1999-03-03 2001-08-08 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Coussinet pour presse
DE20005266U1 (de) * 2000-03-22 2001-05-10 R. Bruch & Cie. S.A., Neu-Moresnet Presspolster sowie Heizplattenpresse mit solchen Presspolstern
DE10124090B4 (de) * 2001-02-02 2012-07-12 Gkd - Gebr. Kufferath Ag Produktionsmaschine für verdichtete Holzprodukte sowie Verwendung eines Mischgewebes für derarige Produktionsmaschinen
DE102007013871A1 (de) * 2007-03-20 2008-09-25 Gkd - Gebr. Kufferath Ag Aufgerauter Schussdraht
DE202007006849U1 (de) 2007-05-10 2008-06-26 Heimbach Gmbh & Co. Kg Presspolster mit Randverstärkung
DE202016000367U1 (de) * 2016-01-20 2016-02-05 Rolf Espe Presspolster für Ein- und Mehretagenpressen deren Polsterschicht aus Silikonelastomer im 3D-Druckverfahren aufgetragen wird.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239340A1 (en) * 1973-07-31 1975-02-28 Becker & Van Huellen Press for wood-based materials - with integral lower support of glass fibre for wet or dry pressing
JPS61194237A (ja) * 1985-02-21 1986-08-28 東レ・デュポン株式会社 金属線複合弾性糸
US5298322A (en) * 1990-12-31 1994-03-29 Rheinische Filztuchfabrik Gmbh Press pad for high-pressure presses
DE29518204U1 (de) * 1994-10-26 1996-05-09 Marathon Belting Ltd., Rochdale Preßpolster für eine Schichtstoffpresse
EP0713762A2 (fr) * 1994-11-25 1996-05-29 RHEINISCHE FILZTUCHFABRIK GmbH Coussinet de pressage pour presses à haute et à basse pression
DE29704258U1 (de) * 1997-03-08 1997-06-05 Rheinische Filztuchfabrik GmbH, 52222 Stolberg Druckausgleichspolster für Heiz- und Rückkühlpressen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239340A1 (en) * 1973-07-31 1975-02-28 Becker & Van Huellen Press for wood-based materials - with integral lower support of glass fibre for wet or dry pressing
JPS61194237A (ja) * 1985-02-21 1986-08-28 東レ・デュポン株式会社 金属線複合弾性糸
US5298322A (en) * 1990-12-31 1994-03-29 Rheinische Filztuchfabrik Gmbh Press pad for high-pressure presses
DE29518204U1 (de) * 1994-10-26 1996-05-09 Marathon Belting Ltd., Rochdale Preßpolster für eine Schichtstoffpresse
EP0713762A2 (fr) * 1994-11-25 1996-05-29 RHEINISCHE FILZTUCHFABRIK GmbH Coussinet de pressage pour presses à haute et à basse pression
DE29704258U1 (de) * 1997-03-08 1997-06-05 Rheinische Filztuchfabrik GmbH, 52222 Stolberg Druckausgleichspolster für Heiz- und Rückkühlpressen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8641, Derwent World Patents Index; Class F02, AN 86-268011, XP002098255 *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6342457B1 (en) 1999-03-03 2002-01-29 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Pressing cushion
US6413889B1 (en) 1999-03-03 2002-07-02 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Pressing cushion
WO2001076861A1 (fr) * 2000-04-08 2001-10-18 Marathon Belting Limited Coussinets de pression
WO2002026480A1 (fr) * 2000-09-26 2002-04-04 Marathon Belting Limited Tampon de presse
CN100439089C (zh) * 2001-09-27 2008-12-03 托马斯约瑟夫亨巴赫有限公司 压垫
EP1300235A1 (fr) * 2001-09-27 2003-04-09 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Coussinet pour presse
US6780280B2 (en) 2001-09-27 2004-08-24 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Pressing cushion
CZ296958B6 (cs) * 2001-09-27 2006-08-16 Thomas Josef Heimbach Gesellschaft mit beschränkter Haftung & Co. Lisovací polstár
EP1386723A3 (fr) * 2002-07-31 2004-06-02 RHEINISCHE FILZTUCHFABRIK GmbH Coussinet pour presse
EP1508433A1 (fr) * 2003-08-13 2005-02-23 RHEINISCHE FILZTUCHFABRIK GmbH Coussinet de presse
CN1966794B (zh) * 2005-10-28 2012-02-15 莱茵里希毛毡工厂有限责任公司 用于液压热压设备的压力平衡织物
GB2447837A (en) * 2006-05-03 2008-09-24 Marathon Belting Ltd Improvements to press pads
US7892990B2 (en) 2006-05-03 2011-02-22 Marathon Belting Limited Press pads
GB2447837B (en) * 2006-05-03 2011-07-13 Marathon Belting Ltd Improvements to press pads
WO2007129041A1 (fr) 2006-05-03 2007-11-15 Marathon Belting Limited amÉliorations apportÉes aux patins de presse
CN101432130B (zh) * 2006-05-03 2013-10-16 马拉松包带有限公司 压力垫的改进
DE202010001226U1 (de) 2010-01-20 2011-05-26 Helmbach GmbH & Co. KG, 52353 Presspolster
EP2347894A2 (fr) 2010-01-20 2011-07-27 Heimbach GmbH & Co. KG Coussinet pour presse
EP2664450A3 (fr) * 2012-05-16 2016-06-01 Hueck Rheinische GmbH Coussin de presse ainsi que fils d'élastomère résistant aux températures élevées
WO2024141250A1 (fr) 2022-12-30 2024-07-04 Hueck Rheinische Gmbh Coussin de presse comprenant un tissu et presse à chaud

Also Published As

Publication number Publication date
PL330109A1 (en) 1999-06-07
HU219898B (hu) 2001-08-28
DE59809559D1 (de) 2003-10-16
EP0920983B1 (fr) 2003-09-10
CZ382198A3 (cs) 1999-06-16
CZ294633B6 (cs) 2005-02-16
PT920983E (pt) 2004-01-30
HU9802776D0 (en) 1999-01-28
DK0920983T3 (da) 2004-01-26
DE29721495U1 (de) 1998-02-19
SK284583B6 (sk) 2005-07-01
PL188168B1 (pl) 2004-12-31
HUP9802776A1 (hu) 1999-07-28
ES2203869T3 (es) 2004-04-16
ATE249334T1 (de) 2003-09-15
SK166898A3 (en) 1999-07-12

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