EP0176883B2 - Gleitflächendichtungen an Doppelbandpressen - Google Patents

Gleitflächendichtungen an Doppelbandpressen Download PDF

Info

Publication number
EP0176883B2
EP0176883B2 EP85111898A EP85111898A EP0176883B2 EP 0176883 B2 EP0176883 B2 EP 0176883B2 EP 85111898 A EP85111898 A EP 85111898A EP 85111898 A EP85111898 A EP 85111898A EP 0176883 B2 EP0176883 B2 EP 0176883B2
Authority
EP
European Patent Office
Prior art keywords
groove
pressure
retaining strip
press
seal
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
EP85111898A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0176883A1 (de
EP0176883B1 (de
Inventor
Kurt Held
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6246921&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0176883(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0176883A1 publication Critical patent/EP0176883A1/de
Application granted granted Critical
Publication of EP0176883B1 publication Critical patent/EP0176883B1/de
Publication of EP0176883B2 publication Critical patent/EP0176883B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
    • B30B5/062—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band urged by directly-acting fluid pressure
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]

Definitions

  • the invention relates to a double belt press for applying surface pressure to continuously advancing sheet-like materials with a rigid press frame, with deflection drums rotatably mounted on bearing bridges of the press frame, with an upper and a lower, endless press belt guided over the deflection drums and with to generate the pressing pressure on the Press belt runs with pressure chambers that can be pressurized with fluid, which are delimited upwards and downwards by the pressure plates and the inside of the press belt runs, to the sides by a sliding surface seal located in a retaining strip, this retaining strip is arranged so that it can move vertically to the pressing belt in grooves running around the edge of the pressure plates, On the retaining strip there is a groove seal consisting of an O-ring cord, which lies to the groove base and which contacts the atmospheric and pressure-side groove walls of the groove, and a fluid pressure medium from the groove base of the groove to the groove seal n acts, whereby the sliding surface seal is pressed with a force against the inside of the press belt run and the holding bar is provided with lateral
  • Double belt presses are used for the continuous pressing of leading sheet-like materials such as chipboard, impregnated paper, decorative laminates, impregnated glass and natural fibers, fabrics, plastic or rubber sheets.
  • a liquid or gaseous pressure medium is introduced into a pressure chamber delimited by sliding surface seals and a pressure plate on the respective rear side of the press belts, and this pressure medium compresses the material web lying between the two belts.
  • a sliding surface seal on a double belt press is shown in DE-A-2 722 197.
  • this double belt press there is a circumferential groove in the pressure plates, in which the sliding surface seal for sealing the pressure chambers, which are formed by the pressure plates, the back of the press belts and the sliding surface seal, is used.
  • the seal of this sliding surface seal is contained in a U-shaped metal retaining strip.
  • Rigid, non-elastic support brackets are attached to the legs of the retaining strip. These support brackets are supported on transverse bearings in the pressure plate and thus transmit the longitudinal thrust exerted on the sliding surface seal due to the movement of the press belt into the pressure plate.
  • the support brackets are designed as leaf spring-like sheet metal brackets which can be deflected perpendicularly in the direction of the pressure plate and are attached to the pressure plates at their ends.
  • the pressure plates have, adjacent to the groove for receiving the retaining strip and, starting from the groove wall of the groove on the pressure chamber side, guide grooves running perpendicular to this groove.
  • the sheet metal tabs are guided in the guide grooves at least on sections of their sides directed perpendicular to the plane of the pressure plates.
  • the support brackets are firmly connected to the retaining bar.
  • the invention has for its object to provide a reliable, welding contact-free connection of the support bracket and retaining strip.
  • the double belt press shown schematically in FIG. 1 for the continuous production of laminates has four deflection drums 1, 2, 3, 4 rotatably mounted in bearing bridges 5, 6.
  • the press belts 7, 8 are tensioned using known means, for example hydraulic cylinders. The direction of rotation is indicated by arrows in the deflection drums 1 and 4.
  • a material web 9 leading from right to left in the drawing which can consist of laminates impregnated with synthetic resin, fiber-binder mixtures or the like, is compressed with simultaneous application of heat and pressure. If the material to be pressed requires appropriate treatment, compaction can also take place without heat or with cooling.
  • the pressure exerted on the material web 9 is applied hydraulically to the inside of the press belt runs 7, 8 via pressure plates 11, 12 and transferred from village to the material web 9.
  • the reaction forces exerted by the material to be pressed are transferred via the pressure chambers 11, 12 and from support beams 13, 14 connected to them into the press frame, which is only indicated schematically.
  • the inlet-side deflection drums 1, 4 are heated and thereby heat the belt runs 7 and 8.
  • the amount of heat absorbed by them is transported by their heat capacity into the reaction zone 10 and released there to the material web 9, where it serves to harden the material to be pressed.
  • the material to be pressed can also be heated by other means, for example by the heated pressure medium itself.
  • a pressurizable fluid pressure medium is brought into the space between the pressure plate 11, 12 and the inside of the press belt run 7, 8.
  • This space, the so-called pressure chamber, is limited to the sides with seals.
  • a synthetic oil is used as the pressure medium, which withstands the operating conditions prevailing in the double belt press.
  • a gas for example compressed air, can also be used just as well.
  • Such a pressure chamber is shown in plan view in FIG. 2 seen from the back of the press belt.
  • the pressure plate 11 consists of a steel plate and has a rectangular shape. A groove is embedded in the edge area around its circumference, in which the seal 18 is located for delimitation to the sides.
  • one or more inlets 20 are provided in the pressure plate 11, through which the pressure medium is introduced into the pressure chamber 19.
  • the pressure plate 11 can be provided with transverse or longitudinal bores through which heated thermal oil circulates.
  • Fig. 3 the edge region of the pressure chamber 19 is shown in section according to the enlarged partial section A with the sealing arrangement delimiting it.
  • a groove 15 is introduced, in which the seal 18 is housed.
  • This seal 18 has a substantially rectangular cross section and is made of an elastomeric material.
  • the seal 18 is permanently installed in a groove in a U-shaped retaining strip 21 against longitudinal displacement.
  • the width of the retaining strip 21 is only slightly less than the inside width of the groove 15, so that a small distance 24 or 25 remains between the groove walls 22 and 23, which is preferably in the range below 1/10 mm.
  • a groove seal 26 made of elastic material and designed as an O-ring.
  • This O-ring 26 touches the groove walls 22 and 23 on both sides.
  • Above the groove 15 there is a bore 27 which is in communication with the pressure chamber 19, so that the pressure medium reaches the groove 15 from the pressure chamber 19 and there Pressurizes O-ring 26.
  • the O-ring 26 thus seals the bore 27 from the atmospheric side 28.
  • This O-ring 26 acts on the retaining strip 21, which is freely movable in the vertical direction, since it has a slight play with the walls 22, 23 of the groove. As a result, the seal 18 seated in the holding strip 21 is pressed against the press belt 7.
  • the holding strip 21 and with it the seal 18 follows the deviating movement of the press belt 7 without tilting in the groove 15 and the seal is always on the press belt 7, whereby the pressure chamber 19 is securely sealed against the atmospheric side 28.
  • the holding strip 21 is laterally supported by supporting angles 29 which follow at appropriate intervals and which protrude into the region of the groove 15 as far as the holding strip 21.
  • the support brackets 29 are fixed and rigidly connected to the holding strip 21 at the point of contact, in the present exemplary embodiment by a welding seam 30 which is attached with the aid of a YAG laser welding device.
  • this fixed connection can also be made by brazing, gluing or screwing.
  • Each support bracket which is designed as a leaf spring-like, deflectable in the direction perpendicular to the plane of the pressure plate 11, is at the end facing away from the point of contact between the support bracket 29 and the retaining strip 21 within a guide groove 31, which is in the pressure plate 11 perpendicular to the groove 15 of its pressure chamber wall 23 vented, screwed to the pressure plate 11.
  • a screw bolt 32 is used for this fastening.
  • the seal 18 fixed in the groove 15 in the direction of movement of the press belt 7 touches the inside of the belt run 7, which, however, moves with the feed speed of the material web 9 under the seal 18, which is why a seal of this type is also called a sliding surface seal.
  • This relative movement between the belt run and the seal creates a frictional force that is proportional to the contact pressure and the sliding friction coefficient is.
  • This frictional force, which acts as a pushing or pulling force on the seal 18, must be conducted completely into the pressure plate 11 without the seal being deformed inadmissibly, since otherwise it could no longer fulfill its sealing function.
  • the seal 18 which is made of elastomeric material, is in a U-shaped retaining strip 33 firmly inserted.
  • This retaining bar in turn sits with only slight play in a groove 15 of the pressure plate 11.
  • a groove seal 26 made of an O-ring attached, which touches the atmospheric and pressure-side groove walls 22 and 23 and can be acted upon by a bore 27 with pressure medium.
  • Grooves 34 are now introduced into the holding strip 33 in expediently successive sections.
  • support brackets 35 are suspended in such a way that they are covered by the groove seal 26 and are thus pressed firmly onto the retaining strip 33.
  • the support bracket 35 has an L-shaped shape at the point at which it is suspended in the groove 34, so that a firm and rigid connection with the retaining strip 33 is produced. From the point where the support bracket 35 leaves the retaining strip 33, it runs obliquely in a guide groove 36 in the pressure plate 11 until it meets the longitudinal guide groove 31, where it then bends again and runs parallel to the pressure plate 11. On this last piece parallel to the pressure plate, it is in turn screwed to the pressure plate by means of a screw bolt 32. For better strength, the support bracket 35 is made from one piece.
  • the support bracket 35 Since the support bracket 35 is pressed firmly and rigidly onto the holding bar 33, it can absorb the thrust and tensile forces in the holding bar 33, which arise due to the frictional forces in the seal 18, and pass them on to the pressure plate.
  • the support bracket 35 can be fastened in the pressure plate 11 by means of a second screw bolt 37, as can be seen in FIG. 4. Another possibility is, as also illustrated in FIG. 4, to make the guide groove 36 in the pressure plate 11 only so large that the support bracket 35 has only a slight lateral play or is fitted exactly laterally.
  • a second screw bolt can of course also be attached in the support bracket 29 to prevent rotation.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Paper (AREA)
  • Package Closures (AREA)
EP85111898A 1984-10-03 1985-09-20 Gleitflächendichtungen an Doppelbandpressen Expired - Lifetime EP0176883B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843436158 DE3436158A1 (de) 1984-10-03 1984-10-03 Gleitflaechendichtungen an doppelbandpressen
DE3436158 1984-10-03

Publications (3)

Publication Number Publication Date
EP0176883A1 EP0176883A1 (de) 1986-04-09
EP0176883B1 EP0176883B1 (de) 1989-03-15
EP0176883B2 true EP0176883B2 (de) 1994-04-06

Family

ID=6246921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111898A Expired - Lifetime EP0176883B2 (de) 1984-10-03 1985-09-20 Gleitflächendichtungen an Doppelbandpressen

Country Status (4)

Country Link
US (1) US4665818A (enrdf_load_stackoverflow)
EP (1) EP0176883B2 (enrdf_load_stackoverflow)
JP (1) JPS6186098A (enrdf_load_stackoverflow)
DE (1) DE3436158A1 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794855A (en) * 1986-08-05 1989-01-03 Mitsubishi Rayon Engineering Co., Ltd. Continuous press machine
JPS6354222A (ja) * 1986-08-25 1988-03-08 Mitsubishi Rayon Eng Co Ltd 連続加圧装置
JPS6354223A (ja) * 1986-08-25 1988-03-08 Mitsubishi Rayon Eng Co Ltd 連続加圧装置
DE3634273A1 (de) * 1986-10-08 1988-04-21 Santrade Ltd Dichtungsanordnung fuer die druckkammer einer doppelbandpresse
DE3634274C1 (de) * 1986-10-08 1987-07-30 Santrade Ltd Temperaturbestaendige Dichtungsanordnung
DE3719976A1 (de) * 1987-06-15 1988-12-29 Hymmen Theodor Gmbh Verfahren und vorrichtung zum aufbringen einer flaechenpressung auf pressbandgetriebene werkstuecke
DE59007581D1 (de) * 1990-12-21 1994-12-01 Baehre & Greten Kontinuierlich arbeitende Bandpresse.
DE4111022A1 (de) * 1991-04-05 1992-10-08 Hymmen Theodor Gmbh Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
US5672234A (en) * 1995-04-28 1997-09-30 Park-Air Corporation Zipper fusing machine for attaching zipper material to a plastic web
US6908295B2 (en) * 2000-06-16 2005-06-21 Avery Dennison Corporation Process and apparatus for embossing precise microstructures and embossing tool for making same
JP4714551B2 (ja) * 2005-10-14 2011-06-29 森田技研工業株式会社 厚さ調整機構を備えるプレス装置
US7946023B2 (en) * 2005-11-22 2011-05-24 Siemens Energy, Inc. Method and apparatus for measuring compression in a stator core
JP4834601B2 (ja) * 2007-04-26 2011-12-14 株式会社ブリヂストン ゴムシートの加硫装置およびゴムシートの加硫方法
CN114616093A (zh) * 2019-10-18 2022-06-10 瓦林格创新股份有限公司 用于制造建筑镶板的连续压制装置和方法
CN114585504A (zh) 2019-10-18 2022-06-03 瓦林格创新股份有限公司 用于制造建筑镶板的连续压制装置
CN111607917B (zh) * 2020-05-20 2023-08-15 浙江信胜科技股份有限公司 料带防跑偏送片结构及烫片机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2722197C2 (de) * 1977-05-17 1979-06-07 Kurt 7218 Trossingen Held Gleitflächendichtung an kontinuierlichen Laminiermaschinen
DE2907087C3 (de) * 1979-02-23 1981-10-15 Held, Kurt, 7218 Trossingen Gleitflächendichtung an einer kontinuierlichen Laminiermaschine
DE2907086C3 (de) * 1979-02-23 1981-10-29 Held, Kurt, 7218 Trossingen Elastische Gleitflächendichtung an Doppelbandpressen
DE2937971A1 (de) * 1979-09-20 1981-04-02 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE2937972C2 (de) * 1979-09-20 1987-05-07 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke
DE3304754C2 (de) * 1982-02-27 1985-09-12 Held, Kurt, 7218 Trossingen Verfahren und Vorrichtung zur Stützung der Pressbänder an wälzkörpergestützten Doppelbandpressen
DE8308788U1 (de) * 1983-03-24 1984-02-09 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3310700A1 (de) * 1983-03-24 1984-09-27 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3325578C2 (de) * 1983-07-15 1985-11-14 Held, Kurt, 7218 Trossingen Doppelbandpresse zur kontinuierlichen Herstellung von Laminaten

Also Published As

Publication number Publication date
DE3436158C2 (enrdf_load_stackoverflow) 1993-06-17
US4665818A (en) 1987-05-19
EP0176883A1 (de) 1986-04-09
EP0176883B1 (de) 1989-03-15
DE3436158A1 (de) 1986-04-10
JPH0242315B2 (enrdf_load_stackoverflow) 1990-09-21
JPS6186098A (ja) 1986-05-01

Similar Documents

Publication Publication Date Title
EP0176883B2 (de) Gleitflächendichtungen an Doppelbandpressen
DE2937410C2 (enrdf_load_stackoverflow)
DE2722197C2 (de) Gleitflächendichtung an kontinuierlichen Laminiermaschinen
DE2448794C2 (de) Doppelbandpresse
EP0026401A1 (de) Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke
DE3800210C2 (de) Vorrichtung zur Abdichtung einer Druckmedium enthaltenden Kammer
DE10252477A1 (de) Kontinuierlich arbeitende Presse
DE3725528C2 (de) Filterpresse
DE3310700C2 (enrdf_load_stackoverflow)
DE2362912B2 (de) Mehrteilige rakeleinrichtung fuer filmdruckmaschinen
EP0087651B1 (de) Vorrichtung zur Stützung der Pressbänder an wälzkörpergestützten Doppelbandpressen
DE2735142C3 (de) Kontinuierlich arbeitende Presse
DE3525154A1 (de) Dichtungsanordnung fuer eine mit druckkammern ausgeruestete doppelbandpresse
DE2224977A1 (de) Plattenpresse mit kontinuierlicher Arbeitsweise
DE3048984C2 (de) Zahnradmaschine
DE2937971A1 (de) Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3118563A1 (de) Maschine zum kontinuierlichen trocknen und/oder verbinden von furnieren
DE4010308C2 (de) Kontinuierlich arbeitende Presse
DE3519318A1 (de) Durchbiegungssteuerbare walze
DE2545624C3 (de) Presse zur Ausübung einer Flächenpressung
DE2810660A1 (de) Dichtungseinrichtung an der einlass- und auslassoeffnung eines unterdruck- oder ueberdruckbehaelters o.dgl.
DE19857370C2 (de) Heizvorrichtung für eine Wellpappenanlage
EP3599086A1 (de) Gleitflächendichtung für eine kontinuierlich arbeitende doppelbandpresse und doppelbandpresse
DE3634273A1 (de) Dichtungsanordnung fuer die druckkammer einer doppelbandpresse
DE2355797B2 (de) Presse zur Ausübung einer Flächenpressung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): FR GB IT SE

17P Request for examination filed

Effective date: 19860425

17Q First examination report despatched

Effective date: 19870605

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB IT SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HYMMEN GMBH MASCHINEN- UND ANLAGENBAU

Effective date: 19891209

ITTA It: last paid annual fee
ITF It: translation for a ep patent filed
PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19940406

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): FR GB IT SE

ET3 Fr: translation filed ** decision concerning opposition
GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 19940525

EAL Se: european patent in force in sweden

Ref document number: 85111898.4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950731

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950915

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950929

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960920

EUG Se: european patent has lapsed

Ref document number: 85111898.4

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST