EP0166886B1 - Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke - Google Patents

Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke Download PDF

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Publication number
EP0166886B1
EP0166886B1 EP85104812A EP85104812A EP0166886B1 EP 0166886 B1 EP0166886 B1 EP 0166886B1 EP 85104812 A EP85104812 A EP 85104812A EP 85104812 A EP85104812 A EP 85104812A EP 0166886 B1 EP0166886 B1 EP 0166886B1
Authority
EP
European Patent Office
Prior art keywords
lubricating
pressure
seal
pressing belt
nozzles
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
Application number
EP85104812A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0166886A1 (de
Inventor
Theodor Hymmen Firma
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
Application filed by Individual filed Critical Individual
Priority to AT85104812T priority Critical patent/ATE30128T1/de
Publication of EP0166886A1 publication Critical patent/EP0166886A1/de
Application granted granted Critical
Publication of EP0166886B1 publication Critical patent/EP0166886B1/de
Expired legal-status Critical Current

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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 device for applying surface pressure to progressive workpieces, such as wood-based panels or the like, in which at least one rotating press belt can be pressed against the workpiece by a pressure medium that can be introduced into a pressure chamber, and the pressure chamber can be pressed through part of a strand of the press belt.
  • a pressure medium that can be introduced into a pressure chamber
  • the pressure chamber can be pressed through part of a strand of the press belt.
  • lubricating oil is supplied in the vicinity of the seal, which is then transported from the press belt to the seals, so that an oil film forms in the area of the surface of the seal supported on the press belt.
  • the previously known devices have the disadvantage that the contact surface between the press belt and the seal is only lubricated very unevenly. At the points where there is a greater distance between the seal and the press belt, more oil is fed in than at the points with a small distance.
  • the known devices have the disadvantage that when the oil is fed into the pressure pad, swirling or intensive mixing of oil with oxygen takes place. This leads to oxidation and thus premature aging of the lubricating oil.
  • the invention has for its object to design a device of the type mentioned so that the lubrication at the friction point between the seal and the press belt is significantly improved.
  • the seal is provided with one or more lubrication nozzles or with one or more channels guiding the lubricant and in the surface of the seal which is supported on the press belt, an outlet opening or a plurality of outlet openings for the lubricants are arranged .
  • the thickness of the lubricant film between the seal and the press belt can be precisely adjusted by pressurizing the lubricant so that this lubricant film functions as a lubricant to reduce friction the seal on the press belt and as a sealant to prevent air from escaping from the pressure chamber.
  • the subject of the invention reduces the abrasion of the seal and overheating under the seal is avoided.
  • the device 1 has a lower frame 2 and an upper frame 3, in each of which endless press belts 4 are installed.
  • the press belts 4 run around deflection rollers 5 and are driven by them. They are arranged with respect to one another with a gap which corresponds to the width of a workpiece 6 to be machined. While the press belts 4 carry out a horizontal movement with their surfaces touching the workpiece 6, the workpiece 6 is drawn into the device, specifically into the gap that exists between the surfaces, and is pressurized there by the surfaces of the press belts. When the workpiece 6 passes through the device, it is processed so that it leaves the gap between the press belts 4 as a finished workpiece.
  • foils 7 are pressed onto the top and bottom of the workpiece 6 and are pulled off from supply rolls B.
  • the pressing process can take place at room temperature or at higher temperatures which are applied to the workpiece in the machining area.
  • the upper frame 3 can be pressed as a whole against the lower frame 2 and, after a rough adjustment of the distance between the upper frame 3 and the lower frame 2, the required pressure can be exerted by means of an air pressure built up in pressure chambers 9 , which are each arranged on the back of the press belt 4 with respect to the workpiece 6.
  • guide slides 10 are provided for the rough adjustment, which are fixedly arranged on the lower frame 2 and on which the upper frame 3 can be displaced in the vertical direction.
  • Hydraulic cylinders 11 are provided for the displacement.
  • the pressure chambers 9 are delimited on the side facing away from the working side of the press belt by pressure plates 12 which are guided relative to the frames 2 and 3 and the movement of which is carried out by hydraulic cylinders 13.
  • the pressure plate 12 can be rotated according to the illustration in FIG. 1 about an axis 14 running perpendicular to the working line of the press belt 4, so that in the case of a rectangular design with different side lengths, the pressure chamber width can be adjusted to different workpiece widths.
  • a pressure medium can be introduced into the pressure chamber 9 through the pressure plate 12 via openings 15.
  • the pressure plate 12 has, on its side facing the working side of the press belt 4, a circumferential groove 16, in which, according to the exemplary embodiment according to FIG. 3, a tube 17 with a round cross section is arranged.
  • This hose is made of rubber or plastic.
  • the boundary of the groove 16 corresponds to the contour of the round hose.
  • the height H of the groove corresponds to approximately 2/3 of the outside diameter of the hose 17.
  • the hose is supported on the press belt 4 with the end protruding from the groove 16.
  • the hose is provided with a sealing strip 18 which is integral with the hose.
  • Lubricating nozzles 19, which are arranged at a distance from one another and to which the lubricating oil is supplied from the interior 20 of the hose, are provided in the sealing strip.
  • the interior 20 of the hose 17 is largely filled with lubricating oil.
  • This lubricating oil is supplied through a channel 21 to the interior of the hose.
  • the filling opening of the channel 21 is closed by a screw 22.
  • a line 23 opens into the channel 21, through which compressed air, which is introduced through a connecting piece 24, is introduced both into the lubricating oil-free space of the interior 20 and into the pressure chamber 9.
  • the lubricating oil located in the interior 20 of the hose is thus pressurized and pressed by the lubricating nozzles 19 onto the friction surfaces between the sealing strip 18 and the press belt 4 and forms an oil film in this area.
  • the wear on the sealing strip is reduced by this and a gas-tight seal of the pressure chamber 9 is also achieved.
  • the pressure plate 12 has a circumferential groove 25 which is closed by a membrane 26 on the side facing the press belt 4.
  • a socket 30 is fastened by means of screws 29.
  • the socket has a circumferential groove in which a strip-shaped sealing profile 31 with a rectangular cross section is fixed.
  • Lubricating nozzles 32 are provided at a distance from one another in this sealing profile. The lubricating oil is supplied to these lubricating nozzles through a channel 33 and through a nipple 34 screwed into the channel.
  • the groove bounded at the bottom by the membrane 26 is partially filled with lubricating oil.
  • the lubricating oil-free space of the groove is pressurized with compressed air, which is supplied through the channel 35 and reaches the pressure chamber 9 via the branch channel 36.
  • Each lubricating nozzle 19, 32 has on the side facing the press belt 4 an outlet opening 37, which in the exemplary embodiment according to FIG. 5 has a round cross section.
  • these outlet openings can also be designed as wide slots 38.
  • the lubricating nozzles 19, 32 can be arranged at a distance of 100 to 200 mm.
  • the sealing profiles 31 are provided with lubricating nozzles 39 which open into a distributor groove 40.
  • This distributor groove 40 extends over the entire length of the sealing profile 31.
  • the lubricating nozzles 32 arranged in the strip-shaped sealing profile 31 are acted upon by a system with lubricant which is independent of the pressure medium present in the pressure chamber 9.
  • the lubricant e.g. Lubricating oil is supplied through a line 41, which passes through a bore 43 in the strip 42, the inside diameter of which is larger than the outside diameter of the line 41. This makes it possible for the line 41 to follow the movement of the socket 30 or the sealing strip 31 can, which occurs due to the pressurization of the rubber-elastic membrane 26.
  • the chamber 44 is pressurized together with the pressure chamber 9 with compressed air, which is supplied through a channel 45.
  • the sealing strip 45 is equipped with channels 47 which carry the lubricant and which are arranged at a distance from one another along the sealing strip.
  • the sealing strip is anchored in a socket 48, on the upper boundary surface 49 of which a rigid tube 50 is supported, which is provided with a plastic casing 51.
  • the lubricating oil is passed to the individual channels 47, which are connected to the interior of the tube 50 by lines 52.
  • the plastic jacket 53 of the tube 50 forms a seal for the chamber 53, which is pressurized with compressed air via a line 54 together with the pressure chamber 9.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Press Drives And Press Lines (AREA)
  • Coating Apparatus (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Peptides Or Proteins (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Spray Control Apparatus (AREA)
EP85104812A 1984-07-04 1985-04-20 Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke Expired EP0166886B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85104812T ATE30128T1 (de) 1984-07-04 1985-04-20 Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843424599 DE3424599A1 (de) 1984-07-04 1984-07-04 Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3424599 1984-07-04

Publications (2)

Publication Number Publication Date
EP0166886A1 EP0166886A1 (de) 1986-01-08
EP0166886B1 true EP0166886B1 (de) 1987-10-07

Family

ID=6239822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104812A Expired EP0166886B1 (de) 1984-07-04 1985-04-20 Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke

Country Status (8)

Country Link
US (1) US4632722A (enrdf_load_stackoverflow)
EP (1) EP0166886B1 (enrdf_load_stackoverflow)
JP (1) JPS6131201A (enrdf_load_stackoverflow)
AT (1) ATE30128T1 (enrdf_load_stackoverflow)
DE (1) DE3424599A1 (enrdf_load_stackoverflow)
ES (1) ES295851Y (enrdf_load_stackoverflow)
FI (1) FI82630C (enrdf_load_stackoverflow)
IN (1) IN165551B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255596A1 (en) * 1986-08-05 1988-02-10 Mitsubishi Rayon Engineering Co., Ltd. Continuous press machine
FR2602693A1 (fr) * 1986-08-18 1988-02-19 Andritz Ag Maschf Machine pour le pressage et l'extraction d'humidite notamment pour la filtration
DE4111022A1 (de) * 1991-04-05 1992-10-08 Hymmen Theodor Gmbh Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
USRE35091E (en) * 1986-08-18 1995-11-21 Mascheninfabrik Andritz Actiengesellschaft Pressure device and seal for filter belt machines

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT385681B (de) * 1986-08-18 1988-05-10 Andritz Ag Maschf Druckeinrichtung fuer maschinen bzw. damit versehene maschine zum entwaessern bzw. filtrieren bzw. fuer pressgut
DE59007581D1 (de) * 1990-12-21 1994-12-01 Baehre & Greten Kontinuierlich arbeitende Bandpresse.
DE9111712U1 (de) * 1991-09-19 1991-11-14 Fa. Theodor Hymmen, 4800 Bielefeld Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke
FI1263U1 (fi) * 1993-09-10 1994-03-18 Enfoplan Oy Anordning foer taetning av ett genomfoeringsorgan
DE19944022C2 (de) * 1999-09-15 2003-07-24 Thomas Biermann Kontinuierlich arbeitende Presse
US6658999B1 (en) 1999-10-15 2003-12-09 The Minster Machine Company Linear inflatable press guide seal
US6318727B1 (en) * 1999-11-05 2001-11-20 Kimberly-Clark Worldwide, Inc. Apparatus for maintaining a fluid seal with a moving substrate
CN105423108B (zh) * 2016-01-19 2018-01-19 吉林森林工业股份有限公司江苏分公司 一种热压机网垫润滑装置及使用方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981307A (en) * 1957-06-24 1961-04-25 Jr Neil Malarkey Press machine
US3748225A (en) * 1970-11-19 1973-07-24 Beloit Corp Fibrous web press nip structure including nonporous belts backed by pistons supported with fluid pressure
US3839147A (en) * 1973-03-22 1974-10-01 Beloit Corp Fibrous web press nip structure including nonporous belts backed by fluid pressure chambers having flexible sills
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
EP0087651B2 (de) * 1982-02-27 1994-06-08 Kurt Held Vorrichtung zur Stützung der Pressbänder an wälzkörpergestützten Doppelbandpressen
DE3310700A1 (de) * 1983-03-24 1984-09-27 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255596A1 (en) * 1986-08-05 1988-02-10 Mitsubishi Rayon Engineering Co., Ltd. Continuous press machine
FR2602693A1 (fr) * 1986-08-18 1988-02-19 Andritz Ag Maschf Machine pour le pressage et l'extraction d'humidite notamment pour la filtration
BE1000809A4 (fr) * 1986-08-18 1989-04-11 Andritz Ag Maschf Machine pour le pressage et l'extraction d'humidite notamment pour la filtration.
USRE35091E (en) * 1986-08-18 1995-11-21 Mascheninfabrik Andritz Actiengesellschaft Pressure device and seal for filter belt machines
DE4111022A1 (de) * 1991-04-05 1992-10-08 Hymmen Theodor Gmbh Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
EP0507085A3 (en) * 1991-04-05 1992-11-19 Firma Theodor Hymmen Apparatus for exerting surface pressure on continuously advancing material

Also Published As

Publication number Publication date
FI82630B (fi) 1990-12-31
FI82630C (fi) 1991-04-10
ES295851U (es) 1987-07-01
FI852634A0 (fi) 1985-07-03
FI852634L (fi) 1986-01-05
DE3424599A1 (de) 1986-01-09
IN165551B (enrdf_load_stackoverflow) 1989-11-11
ATE30128T1 (de) 1987-10-15
JPS6131201A (ja) 1986-02-13
US4632722A (en) 1986-12-30
JPH0374883B2 (enrdf_load_stackoverflow) 1991-11-28
EP0166886A1 (de) 1986-01-08
DE3424599C2 (enrdf_load_stackoverflow) 1992-03-05
ES295851Y (es) 1988-01-01

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