EP0298209A2 - Dispositif pour exercer une pression sur la surface de bandes de matière à travailler en mouvement continu - Google Patents

Dispositif pour exercer une pression sur la surface de bandes de matière à travailler en mouvement continu Download PDF

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Publication number
EP0298209A2
EP0298209A2 EP88106361A EP88106361A EP0298209A2 EP 0298209 A2 EP0298209 A2 EP 0298209A2 EP 88106361 A EP88106361 A EP 88106361A EP 88106361 A EP88106361 A EP 88106361A EP 0298209 A2 EP0298209 A2 EP 0298209A2
Authority
EP
European Patent Office
Prior art keywords
sealing frame
press belt
pressure
product
material web
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.)
Withdrawn
Application number
EP88106361A
Other languages
German (de)
English (en)
Other versions
EP0298209A3 (fr
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
Publication of EP0298209A2 publication Critical patent/EP0298209A2/fr
Publication of EP0298209A3 publication Critical patent/EP0298209A3/fr
Withdrawn legal-status Critical Current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 continuously moving material webs, such as e.g. Laminates in which at least one circumferential press belt can be pressed onto the material web by a pressure medium which can be introduced into a square pressure chamber adjacent to the press belt and sealed by means of a circumferential sealing strip forming a sealing frame, and the sealing frame is pressure-loaded in the direction of the press belt.
  • material webs such as e.g. Laminates
  • a pressure medium which can be introduced into a square pressure chamber adjacent to the press belt and sealed by means of a circumferential sealing strip forming a sealing frame, and the sealing frame is pressure-loaded in the direction of the press belt.
  • the sealing strip is attached to a rectangular frame, which is provided with rounded corners.
  • the sealing frame has a constant width over its entire length.
  • the product supplied to the device which can also be designed as a double belt press, under heat and pressure to form a plate If the material is deformed, the product is not yet in a plasticized, soft state in the area of the feed side to the pressure cushion delimited by the sealing frame. As the product moves further along the pressure pad, the product becomes soft and malleable due to the heating. It follows from this that partial quantities of the product in the area of the long sides of the pressure pad are pressed beyond the sealing strips. The tightness between the longitudinally extending sealing strips and the press belt is still present in this area.
  • the product When the product continues to move along the pressure pad, the product sets, so that leaks occur in the discharge area of the pressure pad between the sealing frame and the press belt and pressure medium can flow out of the pressure pad through gaps between the seal frame and the press tape to the outside.
  • the invention has for its object to design the device of the type mentioned so that the full working pressure is given to the product by the pressure pad and the leaks between the pressure pad and the associated press belt are avoided by deformation of the product.
  • sealing frame has a larger width on the feed side of the web than on the outlet side of the web.
  • the sealing frame is designed to be fold-symmetrical with respect to the center line extending in the direction of movement of the press belt and has a trapezoidal outline.
  • the longitudinal spars of the sealing frame which converge in the conveying direction of the press belt, can run in a straight line, concave, undulating or zigzag.
  • the longitudinal spars extending in the conveying direction of the press belt converge in the conveying direction of the press belt, the sealing strips extending in the longitudinal direction of the sealing frame thus become the problematic sealing strips led out.
  • the longitudinal edges of the material web conveyed from the press must be trimmed as usual.
  • the spars extending in the longitudinal direction of the sealing frame can also have a contour deviating from the straight line. If these contours are zigzag or wavy, the lubrication of the sealing strips, which are connected to the longitudinal bars of the surrounding frame, can be intensified.
  • the sealing frame 1 shown in FIG. 1 is composed of a frame 2 and a sealing strip 3 attached to it.
  • the sealing frame is movably supported in a groove 4 of a pressure plate 5 in and out of the groove and is supported with its sealing strip 3 on a press belt 6.
  • the product 8 fed to the double belt press is not yet flowable in the inlet area shown in FIG. 2, so that it forms a hard abutment for the sealing strip 3.
  • the product In the central area of the pressure pad, which is shown in FIG. 3, the product is in a soft state due to heating, so that a partial amount 9 is pressed out laterally from the area of the pressure pad, which also leads to a deformation of the pressure bands 6 under the Influence of the working pressure in the pressure pad leads. In this area of the pressure pad shown in FIG. 3, the tightness between the sealing strip 3 and the press belt 6 is still ensured.
  • the product In the drainage area, the product has cooled and set, so that it takes on the spatial shape shown in FIG. 4.
  • the cross member 11 of the sealing frame on the outlet side is supported by the press belt 6 on the product 8, which thus forms a hard abutment.
  • the cross member 11 of the sealing frame on the outlet side is supported by the press belt 6 on the product 8, which thus forms a hard abutment.
  • the longitudinal members 12 In the transition area from the cross member 11 of the sealing frame to the longitudinal members 12 there are gaps 13 between the sealing frame and the associated press belt, from which the pressure medium emanates. These gaps 13 are avoided in the configuration of the sealing frame 1 according to the invention, of which an exemplary embodiment is shown in FIGS. 5 to 8.
  • the cross member 14 of the sealing frame 1 has a greater width on the feed side of the material web than the cross member 15 on the outlet side of the material web.
  • Fig. 6 which shows a section along the line VI-VI in Fig. 5, shows the feed area in which the product 8 has a hard consistency, so that it forms a firm abutment for the pressure pad. 6 corresponds to FIG. 2.
  • the operating state shown in FIG. 8 results on the discharge side.
  • the cross member 15 of the sealing frame can be supported over its entire length via the press belt 6 on the product 8 forming a hard abutment. Since the cross member 15 has a shorter length than the cross member 14, the sealing frame 1 is led out of the problem area, which is shown in FIG. 4.
  • the sealing frame 1 is designed to be fold-symmetrical with respect to the center line 16 extending in the direction of movement 10 of the press belt.
  • the sealing frame according to the invention ensures a perfect, all-round sealing of the pressure pad, and the operating pressure is thus maintained, it is possible to work with a lower operating pressure than in the known embodiment.
  • the uniform operating pressure in the pressure cushion supports the formation of an even lubricating film in the area of the longitudinal bars of the sealing frame.

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)
  • Treatment Of Fiber Materials (AREA)
  • Paper (AREA)
EP88106361A 1987-07-04 1988-04-21 Dispositif pour exercer une pression sur la surface de bandes de matière à travailler en mouvement continu Withdrawn EP0298209A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3722157 1987-07-04
DE19873722157 DE3722157A1 (de) 1987-07-04 1987-07-04 Vorrichtung zum aufbringen einer flaechenpressung auf kontinuierlich bewegte werkstoffbahnen

Publications (2)

Publication Number Publication Date
EP0298209A2 true EP0298209A2 (fr) 1989-01-11
EP0298209A3 EP0298209A3 (fr) 1990-01-10

Family

ID=6330919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106361A Withdrawn EP0298209A3 (fr) 1987-07-04 1988-04-21 Dispositif pour exercer une pression sur la surface de bandes de matière à travailler en mouvement continu

Country Status (5)

Country Link
US (1) US4877392A (fr)
EP (1) EP0298209A3 (fr)
JP (1) JPS6427797A (fr)
DE (1) DE3722157A1 (fr)
FI (1) FI883155L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055855B4 (de) 2005-11-23 2018-08-02 Hymmen GmbH Maschinen- und Anlagenbau Druckzone einer Doppelbandpresse

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035610A1 (de) * 1990-11-09 1992-05-14 Basf Ag Verfahren zur herstellung von faserverbundwerkstoffen
DE29622385U1 (de) * 1996-12-24 1997-04-30 Berndorf Band Ges. M.B.H., Berndorf Doppelbandpresse, sowie endloses Band für eine Doppelbandpresse

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532050A (en) * 1968-08-14 1970-10-06 Improved Machinery Inc Press having fluid supported drive conveyor
CA973462A (en) * 1971-02-25 1975-08-26 Per A. Jaatinen Continuous action sheet press
FI67509C (fi) * 1971-05-24 1985-04-10 Into Kerttula Kontinuerligt arbetande skivpress
DE2722197C2 (de) * 1977-05-17 1979-06-07 Kurt 7218 Trossingen Held Gleitflächendichtung an kontinuierlichen Laminiermaschinen
GB1601961A (en) * 1978-05-25 1981-11-04 Automotive Prod Co Ltd Method of assembling a pneumatic piston and cylinder assembly
DE2937972C2 (de) * 1979-09-20 1987-05-07 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke
DE3310700A1 (de) * 1983-03-24 1984-09-27 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3313406C3 (de) * 1983-04-13 1994-02-24 Hymmen Kg Theodor Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke
DE3315367A1 (de) * 1983-04-28 1984-10-31 Held, Kurt, 7218 Trossingen Kontinuierlich arbeitende presse mit mehrlagigen pressbaendern
DE3325578C2 (de) * 1983-07-15 1985-11-14 Held, Kurt, 7218 Trossingen Doppelbandpresse zur kontinuierlichen Herstellung von Laminaten
DE3417288A1 (de) * 1984-05-10 1985-11-14 Fa. Theodor Hymmen, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3525154A1 (de) * 1985-07-13 1987-01-22 Santrade Ltd Dichtungsanordnung fuer eine mit druckkammern ausgeruestete doppelbandpresse
DE3533413C2 (de) * 1985-09-19 1995-06-22 Held Kurt Doppelbandpresse zur kontinuierlichen Herstellung kupferkaschierter Laminate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055855B4 (de) 2005-11-23 2018-08-02 Hymmen GmbH Maschinen- und Anlagenbau Druckzone einer Doppelbandpresse

Also Published As

Publication number Publication date
DE3722157A1 (de) 1989-01-12
EP0298209A3 (fr) 1990-01-10
JPH0337840B2 (fr) 1991-06-06
JPS6427797A (en) 1989-01-30
US4877392A (en) 1989-10-31
FI883155A7 (fi) 1989-01-05
FI883155L (fi) 1989-01-05
FI883155A0 (fi) 1988-07-01

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