EP0117256B1 - Presse zur Herstellung von Profilkörpern - Google Patents

Presse zur Herstellung von Profilkörpern Download PDF

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Publication number
EP0117256B1
EP0117256B1 EP83101721A EP83101721A EP0117256B1 EP 0117256 B1 EP0117256 B1 EP 0117256B1 EP 83101721 A EP83101721 A EP 83101721A EP 83101721 A EP83101721 A EP 83101721A EP 0117256 B1 EP0117256 B1 EP 0117256B1
Authority
EP
European Patent Office
Prior art keywords
tool part
pressing tool
press
inner pressing
edge
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
EP83101721A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0117256A1 (de
Inventor
- Werke J.F. Werz Kg Werzalit
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.)
Werzalit - Werke Jf Werz KG
Original Assignee
Werzalit - Werke Jf Werz KG
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 Werzalit - Werke Jf Werz KG filed Critical Werzalit - Werke Jf Werz KG
Priority to AT83101721T priority Critical patent/ATE21062T1/de
Priority to EP83101721A priority patent/EP0117256B1/de
Priority to DE8383101721T priority patent/DE3364824D1/de
Priority to JP59031566A priority patent/JPS59165626A/ja
Publication of EP0117256A1 publication Critical patent/EP0117256A1/de
Application granted granted Critical
Publication of EP0117256B1 publication Critical patent/EP0117256B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles

Definitions

  • the invention relates to a press for the production of pressed profile bodies from a non-rising mixture of fibrous materials mixed with a thermosetting binder, which has at least one inner pressing tool part shaped according to one side of the profile body to be pressed and an outer pressing tool part reaching over the inner pressing tool part.
  • Such a press is known (DE-C-25 48 739). It is intended to press profile bodies, such as external and internal cladding profiles for buildings, balcony cladding, table tops or the like, from a non-rising mixture of fibrous materials mixed with a thermosetting binder.
  • the non-rising mixture usually consists of lignocellulosic fibrous materials, such as shredded and dried wood shavings, bagasse fibers and the like. a., which are mixed with a thermosetting resin, such as a melamine-urea-formaldehyde or phenol-formaldehyde resin.
  • a thermosetting resin such as a melamine-urea-formaldehyde or phenol-formaldehyde resin.
  • fibers of other materials such as glass fibers, can also be used.
  • Rock wool or asbestos fibers alone or several of them mixed together, to which appropriate, preferably organic, binders have been added.
  • the profile bodies are usually produced in such a way that a pre-compact is first produced from the mixture by cold pressing, which is provided on its underside, that is, the surface of the profile body not used as a visible side, with a cover layer.
  • a pre-compact which is very similar to the finished profile body is pressed from the mixture in a press.
  • the pre-compact is already a solid, manageable body.
  • the finished profile body is created from the pre-pressed product by hot pressing in another press.
  • the profile body is usually simultaneously provided with a cover layer, which usually consists of at least one layer, namely a decorative layer, for example made of a fabric, a veneer, a printed paper film or a plastic film, over which a transparent protective layer can be arranged.
  • a cover layer which usually consists of at least one layer, namely a decorative layer, for example made of a fabric, a veneer, a printed paper film or a plastic film, over which a transparent protective layer can be arranged.
  • a so-called overlay paper consisting of unfilled alpha cellulose paper or glass fiber fleece, is usually used as a protective layer and is impregnated with a thermoset, usually based on melamine.
  • the transparent protective layer can also be produced in that the decorative layer has a stronger resin layer.
  • the known press has proven itself on a large scale in the manufacture of the profile bodies mentioned at the beginning. However, it was occasionally observed that the edges of the finished profile body had a rough surface and an optically unsightly appearance. Since in the known press the edges of the outer and inner pressing tool parts, which slide along each other during the pressing process, are formed at a right angle, it has been assumed that the pressing tool parts during the pressing process have a squeezing and shearing effect on both the edges of the pre-compact and exert on the top layer.
  • the invention is therefore based on the object of providing a press for the production of profile bodies of the type described at the outset, with which perfectly smooth and flat edges on the professional bodies can be achieved.
  • the figure shows - essentially schematically - the cross section of such a press. It consists of the press table 1, which is to be arranged to be stationary in the exemplary embodiment shown, and the press die 2 which is movable in the direction of the arrows.
  • the outer press tool part 3 is fastened to the press die 2 and the inner press tool part 4 is fastened to the press table 1.
  • the contours of the profile body to be pressed are worked into the pressing tool parts.
  • the compression of the profile body is determined by the thickness of the space enclosed between the outer press tool part 3 and the inner press tool part 4 in the final press position.
  • the movement of the press die 2 is limited by the stops 5 and 6, which are in contact with one another in the press end position.
  • the inner edge of the pressing tool part 3 is provided with the inclined surface 7 in the area in which both pressing tool parts overlap in the pressing end position, which transitions further into a horizontal surface 8.
  • the distance on which the outer and the inner pressing tool part in the pressing end position engage closely together should at least correspond to the thickness loss of the profile body during hot pressing.
  • This design of the pressing tool part 3 has The following effect:
  • the pre-compact is - as already described - removed from the press after the pre-pressing and inserted into the pressing tool part 4 of the open hot press. Since each pre-pressed piece - as is generally known - breathes after the pre-pressing, ie when the pre-press is opened due to springing back of the molding compound, the volume increases, the pre-pressed piece projects beyond the outer dimensions of the pressing tool part 4.
  • the pressing tool part 3 of the hot press is now lowered onto the pressing tool part 4 with the preform lying therein, then the inclined surface 7 presses the protruding parts of the preform continuously inwards without damaging the preform.
  • the inclined surface 7 should have the smoothest possible surface. The height and the inclination of the inclined surface depend on the shape of the profile body and can be determined by simple tests if necessary.
  • the edge of the outer pressing tool part 3 has a recess 10 between the horizontal surface 8 and the outer edge. This measure advantageously contributes to the fact that the protruding parts of the cover layer are prevented from sticking to the outer pressing tool part 3 and the cleaning of this pressing tool part is at least made easier if it is not even largely unnecessary.
  • the press is designed such that the inner press tool part 4 is stationary and the outer press tool part 3 is arranged to be vertically displaceable up and down. In principle, however, it does not matter which of the pressing tool parts acts from above against the other pressing tool part on the molding compound. It is also possible that the inner press tool part 4 is designed to be displaceable upwards or arranged at the top, or that both press tool parts are arranged to be displaceable relative to one another.
  • the invention has been described above with reference to a press in which the core is cured and the cover layer is applied simultaneously during hot pressing.
  • the new press can also be used if the profile body is only hot pressed, i.e. H. should be cured.
  • the new press can also be used if the hot pressing is carried out in two stages, as is known from the known press.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Press Drives And Press Lines (AREA)
EP83101721A 1983-02-23 1983-02-23 Presse zur Herstellung von Profilkörpern Expired EP0117256B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT83101721T ATE21062T1 (de) 1983-02-23 1983-02-23 Presse zur herstellung von profilkoerpern.
EP83101721A EP0117256B1 (de) 1983-02-23 1983-02-23 Presse zur Herstellung von Profilkörpern
DE8383101721T DE3364824D1 (en) 1983-02-23 1983-02-23 Press for producing structural parts
JP59031566A JPS59165626A (ja) 1983-02-23 1984-02-23 成形異形物体を製造するための成形機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83101721A EP0117256B1 (de) 1983-02-23 1983-02-23 Presse zur Herstellung von Profilkörpern

Publications (2)

Publication Number Publication Date
EP0117256A1 EP0117256A1 (de) 1984-09-05
EP0117256B1 true EP0117256B1 (de) 1986-07-30

Family

ID=8190309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101721A Expired EP0117256B1 (de) 1983-02-23 1983-02-23 Presse zur Herstellung von Profilkörpern

Country Status (4)

Country Link
EP (1) EP0117256B1 (enrdf_load_stackoverflow)
JP (1) JPS59165626A (enrdf_load_stackoverflow)
AT (1) ATE21062T1 (enrdf_load_stackoverflow)
DE (1) DE3364824D1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299611A1 (en) * 1987-06-05 1989-01-18 Takeda Chemical Industries, Ltd. Compression molding apparatus and method
US5213821A (en) * 1988-11-05 1993-05-25 Werzalit Ag & Co. Apparatus for manufacturing an elongate cover profile
GB2440067B (en) 2005-03-14 2011-02-23 Gtech Corp System and method for processing a form
CN111513927B (zh) 2015-01-30 2022-04-12 大王制纸株式会社 吸收性物品及其制造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1404507B2 (de) * 1959-06-16 1970-06-11 Furnier- Und Sperrholzwerk J.F. Werz Jun. Kg Werzalit-Pressholzwerk, 7141 Oberstenfeld Verfahren zur Herstellung von gepressten Profilteilen aus einem nicht steigfähigen Gemisch und Vorrichtung zur Durchführung des Verfahrens
DE1210551B (de) * 1959-09-23 1966-02-10 Werz Furnier Sperrholz Verfahren zur Herstellung und Beschichtung von Spanpressteilen
GB990351A (en) * 1963-07-31 1965-04-28 Formwood Ltd Method and apparatus for producing pressure-moulded articles from chip board or like material
DE2548739C3 (de) * 1975-10-31 1978-09-21 Furnier- Und Sperrholzwerk J.F. Werz Jr. Kg Werzalit-Pressholzwerk, 7141 Oberstenfeld Verfahren zur Herstellung von gepreßten Profilkörpern aus einem nicht steigfähigen Gemisch t
JPS5736618A (en) * 1980-08-14 1982-02-27 Matsushita Electric Works Ltd Structure of metal mold

Also Published As

Publication number Publication date
JPS59165626A (ja) 1984-09-18
JPH0450885B2 (enrdf_load_stackoverflow) 1992-08-17
ATE21062T1 (de) 1986-08-15
DE3364824D1 (en) 1986-09-04
EP0117256A1 (de) 1984-09-05

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