EP0502224A1 - Device for the simultaneous production of a set of pressed blocks - Google Patents

Device for the simultaneous production of a set of pressed blocks Download PDF

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Publication number
EP0502224A1
EP0502224A1 EP91103364A EP91103364A EP0502224A1 EP 0502224 A1 EP0502224 A1 EP 0502224A1 EP 91103364 A EP91103364 A EP 91103364A EP 91103364 A EP91103364 A EP 91103364A EP 0502224 A1 EP0502224 A1 EP 0502224A1
Authority
EP
European Patent Office
Prior art keywords
pressing tool
simultaneous production
shafts
pressing
stamp
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.)
Granted
Application number
EP91103364A
Other languages
German (de)
French (fr)
Other versions
EP0502224B1 (en
Inventor
Gerd Weinberg
Helmuth Huber
Kurt Zimmermann
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 AG and Co KG
Original Assignee
Werzalit AG and Co 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 AG and Co KG filed Critical Werzalit AG and Co KG
Priority to AT91103364T priority Critical patent/ATE121666T1/en
Priority to DE59105326T priority patent/DE59105326D1/en
Priority to EP91103364A priority patent/EP0502224B1/en
Priority to ES91103364T priority patent/ES2073603T3/en
Publication of EP0502224A1 publication Critical patent/EP0502224A1/en
Application granted granted Critical
Publication of EP0502224B1 publication Critical patent/EP0502224B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B30B15/06—Platens or press rams
    • B30B15/068—Drive connections, e.g. pivotal
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/021—Ram heads of special form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
    • B28B3/06—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould with two or more ram and mould sets

Definitions

  • the application relates to a device for the simultaneous production of a plurality of essentially block-like pressing bodies with a press consisting of a pressing tool upper part and a pressing tool lower part, in which the pressing tool lower part consists of a frame having a plurality of shafts, which can be raised and lowered and stamps arranged in a fixed manner in the shafts.
  • Such a device is known (DE - C - 23 09 975).
  • the known device is used to press compacts from a non-flowable mixture.
  • the non-flowable mixture often consists of lignocellulosic fibrous materials, such as chopped and dried wood chips, bagasse fibers and the like. ⁇ ., which are mixed with a thermosetting synthetic resin such as melamine, urea formaldehyde or phenol formaldehyde resin.
  • a thermosetting synthetic resin such as melamine, urea formaldehyde or phenol formaldehyde resin.
  • fibers of other materials such as glass fibers, rock wool or asbestos fibers, can also be mixed alone or several of these, to which appropriate, preferably organic binders have been added.
  • a press body is produced from the mixture in the press in such a way that the mixture is pressed under high pressure and heat, the binder hardening. If the pressing is carried out with a multiple pressing tool, it is necessary that very small distances are maintained between the punches and the shaft walls. If this is not the case, then in particular fine-grained constituents of the mixture can fall through the gap. However, if the distances are very small, it can, among other things Because of the temperature gradient in the tool, the shaft surfaces and / or the punches suffer increased wear.
  • the technical problem underlying the invention is therefore to improve the known device in such a way that increased wear is avoided despite the very small distances between the punches and shaft walls.
  • the punch end which is effective during pressing and which is to be tightly sealed with respect to the shaft wall is designed to be floating and can automatically adjust its position in the shaft as a function of temperature fluctuations.
  • the frame 2 provided with shafts 1 can be seen in the figure.
  • the punches 3 are arranged in the shafts 1, the upper end of which is provided with the horizontally balanced plate 4.
  • the plates 4 should be in the direction of the arrows be agile.
  • the upper end of the punch 3 is provided with a T-shaped profile and the plate 4 with a recess shaped in the same way.
  • the stamps 3 have in the center a closed longitudinal bore 5 at the upper end of the stamp 3, in which a heater is to be arranged.
  • the heating can be implemented, for example, in such a way that the longitudinal bore 5 is divided by a longitudinal wall into two channels which are connected to one another at the upper end and through which superheated steam is passed for heating purposes.
  • the heating can also be implemented in another way, for example by means of electric radiators.

Abstract

A press is proposed, the lower part of the compression mould of which is a frame which can be raised and lowered and has a plurality of compartments, in which dies are arranged. The dies have horizontally movable caps. <IMAGE>

Description

Die Anmeldung betrifft eine Vorrichtung zur gleichzeitigen Herstellung einer Mehrzahl von im wesentlichen blockartigen Preßkörpern mit einer aus Preßwerkzeugoberteil und Preßwerkzeugunterteil bestehenden Presse, in welcher das Preßwerkzeugunterteil aus einem, eine Mehrzahl von Schächten aufweisenden heb- und senkbaren Rahmen und in den Schächten feststehend angeordneten Stempeln besteht.The application relates to a device for the simultaneous production of a plurality of essentially block-like pressing bodies with a press consisting of a pressing tool upper part and a pressing tool lower part, in which the pressing tool lower part consists of a frame having a plurality of shafts, which can be raised and lowered and stamps arranged in a fixed manner in the shafts.

Eine solche Vorrichtung ist bekannt ( DE - C - 23 09 975 ). Die bekannte Vorrichtung wird dazu verwendet, um Preßkörper aus einem nicht fließfähigen Gemisch zu pressen. Das nicht fließfähige Gemisch besteht häufig aus lignozellulosehaltigen Faserstoffen, wie zerkleinerten und getrockneten Holzspänen, Bagassefasern u. ä. , die mit einem wärmehärtbaren Kunstharz, wie Melamin-, Harnstoffformaldehyd- oder Phenolformaldehydharz vermischt sind. Anstelle der zerkleinerten und getrockneten Holz- oder Bagassefasern können aber auch Fasern anderer Werkstoffe, wie Glasfasern, Steinwolle oder Asbestfasern allein oder mehrere derselben gemischt werden, denen entsprechende, vorzugsweise organische Bindemittel zugesetzt sind.Such a device is known (DE - C - 23 09 975). The known device is used to press compacts from a non-flowable mixture. The non-flowable mixture often consists of lignocellulosic fibrous materials, such as chopped and dried wood chips, bagasse fibers and the like. Ä., Which are mixed with a thermosetting synthetic resin such as melamine, urea formaldehyde or phenol formaldehyde resin. Instead of the shredded and dried wood or bagasse fibers, fibers of other materials, such as glass fibers, rock wool or asbestos fibers, can also be mixed alone or several of these, to which appropriate, preferably organic binders have been added.

Aus dem Gemisch wird in der Presse in der Weise ein Preßkörper hergestellt, daß das Gemisch unter hohem Druck und Wärmezufuhr gepreßt wird wobei das Bindemittel aushärtet. Wenn das Pressen mit einem Mehrfachpreßwerkzeug erfolgt, so ist es erforderlich, daß zwischen den Stempeln und den Schachtwänden sehr geringe Abstände eingehalten werden. Ist das nicht der Fall, dann können insbesondere feinkörnige Bestandteile des Gemischs durch den Spalt hindurchfallen. Sind die Abstände jedoch sehr gering, dann kann es, u.a. wegen des Temparaturgefälles im Werkzeug, vorkommen, daß die Schachtoberflächen und/oder die Stempel einen erhöhten Verschleiß erleiden.A press body is produced from the mixture in the press in such a way that the mixture is pressed under high pressure and heat, the binder hardening. If the pressing is carried out with a multiple pressing tool, it is necessary that very small distances are maintained between the punches and the shaft walls. If this is not the case, then in particular fine-grained constituents of the mixture can fall through the gap. However, if the distances are very small, it can, among other things Because of the temperature gradient in the tool, the shaft surfaces and / or the punches suffer increased wear.

Das der Erfindung zugrunde liegende technische Problem besteht deshalb darin, die bekannte Vorrichtung in der Weise zu verbessern, daß trotz sehr geringer Abstände zwischen den Stempeln und Schachtwänden ein erhöhter Verschleiß vermieden wird.The technical problem underlying the invention is therefore to improve the known device in such a way that increased wear is avoided despite the very small distances between the punches and shaft walls.

Dieses technische Problem ist erfindungsgemäß dadurch gelöst, daß das dem Schacht zugewandte Ende des Stempels mit einer horizontal beweglichen Platte versehen ist.This technical problem is solved according to the invention in that the end of the stamp facing the shaft is provided with a horizontally movable plate.

Durch diese Ausgestaltung ist das beim Pressen wirksame und gegenüber der Schachtwand dicht auszubildende Stempelende schwimmend ausgebildet und kann seine Lage im Schacht in Abhängigkeit von Temperaturschwankungen selbsttätig anpassen.As a result of this configuration, the punch end which is effective during pressing and which is to be tightly sealed with respect to the shaft wall is designed to be floating and can automatically adjust its position in the shaft as a function of temperature fluctuations.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 und 3 enthalten. Sie ist nachstehend anhand der Figur erläutert :
In der Figur ist der mit Schächten 1 versehene Rahmen 2 zu erkennen. In den Schächten 1 sind die Stempel 3 angeordnet, deren oberes Ende mit der horizontal geweglichen Platte 4 versehen ist. Die Platten 4 sollen in Richtung der Pfeile beweglich sein. Zu diesem Zweck sind das obere Ende des Stempels 3 mit einem T - förmigen Profil und die Platte 4 mit einer in gleicher Weise geformten Aussparung versehen. Die Stempel 3 weisen im Zentrum eine am oberen Ende des Stempels 3 geschlossene Längsbohrung 5 auf, in welcher eine Heizung angeordnet sein soll.Advantageous embodiments of the invention are contained in claims 2 and 3. It is explained below using the figure:
The frame 2 provided with shafts 1 can be seen in the figure. The punches 3 are arranged in the shafts 1, the upper end of which is provided with the horizontally balanced plate 4. The plates 4 should be in the direction of the arrows be agile. For this purpose, the upper end of the punch 3 is provided with a T-shaped profile and the plate 4 with a recess shaped in the same way. The stamps 3 have in the center a closed longitudinal bore 5 at the upper end of the stamp 3, in which a heater is to be arranged.

Die Heizung kann beispielsweise in der Weise verwirklicht sein, daß die Längsbohrung 5 durch eine Längswand in zwei, am oberen Endemiteinander in Verbindung stehende Kanäle unterteilt ist, durch welche zwecks Heizung Heißdampf geleitet wird. Die Heizung kann aber auch auf andere Weise, beispielsweise durch elektrische Heizkörper verwirklicht sein.The heating can be implemented, for example, in such a way that the longitudinal bore 5 is divided by a longitudinal wall into two channels which are connected to one another at the upper end and through which superheated steam is passed for heating purposes. However, the heating can also be implemented in another way, for example by means of electric radiators.

Claims (3)

Vorrichtung zur gleichzeitigen Herstellung einer Mehrzahl von im wesentlichen blockartigen Preßkörpern mit einer aus Preßwerkzeugoberteil und Preßwerkzeugunterteil bestehenden Presse, in welcher das Preßwerkzeugunterteil aus einem, eine Mehrzahl von Schächten aufweisenden heb- und senkbaren Rahmen und in den Schächten feststehend angeordneten Stempeln besteht,
dadurch gekennzeichnet, daß das dem Schacht ( 1 ) zugewandte Ende des Stempels ( 3 ) mit einer horizontal beweglichen Platte ( 4 ) versehen ist.Device for the simultaneous production of a plurality of essentially block-like pressing bodies with a press consisting of a pressing tool upper part and a pressing tool lower part, in which the pressing tool lower part consists of a frame which has a plurality of shafts and can be raised and lowered and stamps arranged fixed in the shafts,
characterized in that the end of the stamp (3) facing the shaft (1) is provided with a horizontally movable plate (4). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Platten ( 4 ) in der Weise am Stempel ( 5 ) geführt sind, daß die Bewegungsrichtungen von zwei benachbarten Platten ( 4 ) um neunzig Winkelgrade zueinander verschoben sind.Device according to claim 1,
characterized in that the plates (4) are guided on the stamp (5) in such a way that the directions of movement of two adjacent plates (4) are displaced by ninety degrees to one another. Vorrichtung nach den Ansprüchen 1 und 2,
dadurch gekennzeichnet, daß der Stempel ( 3 ) mit einer Bohrung ( 5 ) versehen ist, in welcher eine Heizung angeordnet ist.Device according to claims 1 and 2,
characterized in that the punch (3) is provided with a bore (5) in which a heater is arranged.
EP91103364A 1991-03-06 1991-03-06 Device for the simultaneous production of a set of pressed blocks Expired - Lifetime EP0502224B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT91103364T ATE121666T1 (en) 1991-03-06 1991-03-06 DEVICE FOR THE SIMULTANEOUS PRODUCTION OF A PLURALITY OF BLOCK-LIKE PRESSED BODIES.
DE59105326T DE59105326D1 (en) 1991-03-06 1991-03-06 Device for the simultaneous production of a plurality of block-like pressed bodies.
EP91103364A EP0502224B1 (en) 1991-03-06 1991-03-06 Device for the simultaneous production of a set of pressed blocks
ES91103364T ES2073603T3 (en) 1991-03-06 1991-03-06 DEVICE FOR THE SIMULTANEOUS MANUFACTURE OF SEVERAL BULK-PRESSED BODIES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91103364A EP0502224B1 (en) 1991-03-06 1991-03-06 Device for the simultaneous production of a set of pressed blocks

Publications (2)

Publication Number Publication Date
EP0502224A1 true EP0502224A1 (en) 1992-09-09
EP0502224B1 EP0502224B1 (en) 1995-04-26

Family

ID=8206481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103364A Expired - Lifetime EP0502224B1 (en) 1991-03-06 1991-03-06 Device for the simultaneous production of a set of pressed blocks

Country Status (4)

Country Link
EP (1) EP0502224B1 (en)
AT (1) ATE121666T1 (en)
DE (1) DE59105326D1 (en)
ES (1) ES2073603T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003013812A1 (en) * 2001-08-08 2003-02-20 Imal S.R.L. A machine for manufacturing pressed loose material products
CN114536515A (en) * 2022-03-28 2022-05-27 北部湾大学 Porcelain plate semi-forming integrated device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026470A (en) * 2019-05-23 2019-07-19 武汉华夏精冲技术有限公司 A kind of fine machine for lifting mould function with mode locking

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554810C (en) * 1932-07-14 Wilhelm Wiegand Hydraulic press, especially for leather u. like
DE2309975A1 (en) * 1973-02-28 1974-09-05 Werz Furnier Sperrholz PROCESS AND DEVICE FOR THE PRODUCTION OF A PROFILE BODY PRESSED IN ONE OPERATION FROM A NON-INCREASING MIXTURE OF FIBERS AND BINDING AGENTS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554810C (en) * 1932-07-14 Wilhelm Wiegand Hydraulic press, especially for leather u. like
DE2309975A1 (en) * 1973-02-28 1974-09-05 Werz Furnier Sperrholz PROCESS AND DEVICE FOR THE PRODUCTION OF A PROFILE BODY PRESSED IN ONE OPERATION FROM A NON-INCREASING MIXTURE OF FIBERS AND BINDING AGENTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003013812A1 (en) * 2001-08-08 2003-02-20 Imal S.R.L. A machine for manufacturing pressed loose material products
CN114536515A (en) * 2022-03-28 2022-05-27 北部湾大学 Porcelain plate semi-forming integrated device

Also Published As

Publication number Publication date
ATE121666T1 (en) 1995-05-15
EP0502224B1 (en) 1995-04-26
ES2073603T3 (en) 1995-08-16
DE59105326D1 (en) 1995-06-01

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