DE829793C - Press for plate-shaped pressed goods - Google Patents

Press for plate-shaped pressed goods

Info

Publication number
DE829793C
DE829793C DEN1906A DEN0001906A DE829793C DE 829793 C DE829793 C DE 829793C DE N1906 A DEN1906 A DE N1906A DE N0001906 A DEN0001906 A DE N0001906A DE 829793 C DE829793 C DE 829793C
Authority
DE
Germany
Prior art keywords
press
sheets
plate
plates
shaped pressed
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
DEN1906A
Other languages
German (de)
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.)
Becker and Van Huellen GmbH and Co
Original Assignee
Becker and Van Huellen GmbH and Co
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 Becker and Van Huellen GmbH and Co filed Critical Becker and Van Huellen GmbH and Co
Priority to DEN1906A priority Critical patent/DE829793C/en
Application granted granted Critical
Publication of DE829793C publication Critical patent/DE829793C/en
Expired legal-status Critical Current

Links

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
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams
    • 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

Description

Bei Pressen für plattenförmige Preßgüter, z. B. für Sperrholz- und Faserstoffplatten ist es bekannt, die Arbeitsflächen der Heizplatten mit glatten Blechen zu verkleiden, um eine glatte Oberfläche des Preßgutes zu erzielen bzw. die Heizplatten zu schonen. Diese Bleche wurden bisher durch seitlich angebrachte Halteböckchen an den Heizplatten befestigt. Im ausgefahrenen Zustand der Presse hängen diese Bleche stark nach unten durch, was für die Beschickung der Presse nachteilig ist. Um dies zu vermeiden, mußte man den Blechen mittels der Halteböckchen eine starke Vorspannung geben, was aber wieder zur Folge hatte, daß die Halteböckchen bzw. die Laschen häufig abrissen. Außerdem wurde das Durchhängen der Bleche auch bei deren Vorspannung nur unwesentlich vermieden. «"eiter ist nachteilig, daß beim Ausfahren der Presse zwischen den Heizplatten und Blechen ein Unterdruck entsteht, wodurch Fremdkörper angesaugt werden, die sich beim Zufahren der Presse in die Bleche und Heizplatten eindrücken.When pressing for plate-shaped pressed goods, z. B. for plywood and It is known to use fibrous plates to smooth the work surfaces of the heating plates To cover sheet metal in order to achieve a smooth surface of the pressed material or to protect the heating plates. These sheets were previously attached by the side Retaining brackets attached to the heating plates. With the press extended these sheets sag down significantly, which is disadvantageous for the loading of the press is. To avoid this, you had to use the holding brackets to attach the metal sheets give strong pretension, but this again had the consequence that the retaining lugs or the flaps tore off frequently. Plus the sagging of the sheets was also made only marginally avoided when they are pretensioned. "" Pus is disadvantageous that with When the press is extended, a negative pressure is created between the heating plates and sheets, whereby foreign bodies are sucked in, which get into the metal sheets when the press is closed and press in the heating plates.

Die Erfindung besteht darin, daß die Bleche mittels Dichtungsstreifen, z. B. aufgeklebten, wärmebeständigen dünnen Gummistreifen oder einem geschlossenen Gummirahmen allseitig an den Heizplatten derart befestigt werden, daß zwischen Platte und Blech ein freier Spalt verbleibt, in dem vor dem Schließen der Presse ein Vakuum erzeugt wird. Infolge der Wirkung dieses Vakuums können die Bleche nicht durchhängen. Unter der Wirkung des Vakuums legen sich die Bleche fest an die Heizplatten, so daß die Wärme der Platten unmittelbar auf das Preßgut übertragen wird. Da der freie Spalt zwischen Platte und Blech stets allseitig verschlossen bleibt, können auch keine Fremdkörper in diesen Spalt eindringen.The invention consists in that the sheets by means of sealing strips, z. B. glued, heat-resistant thin rubber strips or a closed one Rubber frames are attached to the heating plates on all sides in such a way that between the plate and sheet metal a free gap remains in which a vacuum is applied before the press is closed is produced. As a result of the effect of this vacuum, the sheets cannot sag. Under the effect of the vacuum, the sheets are firmly attached to the heating plates, see above that the heat of the plates is transferred directly to the material to be pressed. Because the free Gap between plate and sheet always remains closed on all sides, can also no foreign bodies can enter this gap.

In der Zeichnung ist der Gegenstand der Erfindung beispielsweise dargestellt.In the drawing, the subject of the invention is shown for example.

Eine Heizplatte ist finit a bezeichnet. An ihrer unteren Seite ist mittels Gummistreifen b ein Blech c allseitig so befestigt, daß ein freier Spalt d verbleibt. Die Platten a sind mit Kanälen e, f versehen. an welche eine Luftleitung - angeschlossen ist, die zu einer @'alzuunil>unil>c führt. In diese Leitung sind Ventile lf eingebaut. Beim erstmaligen Schließen der Presse zum Ankleben der Gummistreifen bleiben die Ventile Ir geöffnet, so daß zur Vermeidung eines Verschiebens der Gummistreifen kein Vakuum erzeugt wird. Beim normalen Betrieb der Presse wird aber schon beim Beschicken und Einfahren der Presse das Vakuum erzeugt.A heating plate is called finite a. On its lower side, a sheet metal c is attached on all sides by means of rubber strips b so that a free gap d remains. The plates a are provided with channels e, f . to which an air line - is connected, leading to a @ 'alzuunil>unil> c. Valves lf are built into this line. When the press is closed for the first time to stick the rubber strips on, the valves Ir remain open, so that no vacuum is generated in order to avoid displacement of the rubber strips. During normal operation of the press, however, the vacuum is already generated when the press is loaded and retracted.

Claims (1)

PATENTANSPRUCH: Presse für plattenförmige Preßgüter, z. B. für Sperrholz- und Faserstottplatten, imit einer Verkleidung von Blechen an den Arbeitsflächen der Heizplatten, dadurch gekennzeichnet, daß die Bleche (c) mittels Dichtungsstreifen, z. B. aufgeklebten,wärmel@eständigen dünnen Gummistreifen (b) oder einem geschlossenen Gummirahmen (b) allseitig an den Heizplatten (a) derart befestligt sind, daß zwischen Platten und Blechen ein freier Spalt (d) verbleibt, in dein ein Vakuum erzeugt wird.PATENT CLAIM: Press for plate-shaped pressed goods, z. B. for plywood and fiber stump plates, with a cladding of sheets on the work surfaces of the heating plates, characterized in that the sheets (c) by means of sealing strips, for. B. glued, heat-resistant thin rubber strips (b) or a closed rubber frame (b) are fastened on all sides to the heating plates (a) in such a way that a free gap (d) remains between the plates and sheets, in which a vacuum is generated.
DEN1906A 1950-09-19 1950-09-19 Press for plate-shaped pressed goods Expired DE829793C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN1906A DE829793C (en) 1950-09-19 1950-09-19 Press for plate-shaped pressed goods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN1906A DE829793C (en) 1950-09-19 1950-09-19 Press for plate-shaped pressed goods

Publications (1)

Publication Number Publication Date
DE829793C true DE829793C (en) 1952-01-28

Family

ID=7337844

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN1906A Expired DE829793C (en) 1950-09-19 1950-09-19 Press for plate-shaped pressed goods

Country Status (1)

Country Link
DE (1) DE829793C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2217215A1 (en) * 1971-04-08 1972-11-09 Seal, Inc., Derby, Conn. (V.St.A.) Vacuum press
DE2417379A1 (en) * 1973-04-10 1974-10-31 Seal VACUUM PRESS
US4247274A (en) * 1978-02-03 1981-01-27 Gustafson Gunnar A Holding device for surface sheets or plates in a press
DE3628334A1 (en) * 1986-08-21 1988-03-10 Santrade Ltd HEATING OR COOLING PLATE FOR PRESSING DEVICES, ESPECIALLY FOR A DOUBLE-BELT PRESS
EP0323565A1 (en) * 1988-01-06 1989-07-12 Pavatex Ag Press apparatus for sheet products

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2217215A1 (en) * 1971-04-08 1972-11-09 Seal, Inc., Derby, Conn. (V.St.A.) Vacuum press
DE2417379A1 (en) * 1973-04-10 1974-10-31 Seal VACUUM PRESS
US4247274A (en) * 1978-02-03 1981-01-27 Gustafson Gunnar A Holding device for surface sheets or plates in a press
DE3628334A1 (en) * 1986-08-21 1988-03-10 Santrade Ltd HEATING OR COOLING PLATE FOR PRESSING DEVICES, ESPECIALLY FOR A DOUBLE-BELT PRESS
US4771683A (en) * 1986-08-21 1988-09-20 Santrade Ltd. Dual belt press with obliquely disposed heating plate strips
EP0323565A1 (en) * 1988-01-06 1989-07-12 Pavatex Ag Press apparatus for sheet products

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