(19)
(11) EP 0 250 017 B2

(12) NEW EUROPEAN PATENT SPECIFICATION

(45) Date of publication and mentionof the opposition decision:
26.08.1992 Bulletin 1992/35

(45) Mention of the grant of the patent:
04.04.1990 Bulletin 1990/14

(21) Application number: 87200953.5

(22) Date of filing: 20.05.1987
(51) International Patent Classification (IPC)5B28B 17/00, B28B 11/12, B28B 11/08

(54)

Device for manufacturing unfired bricks

Vorrichtung zum Herstellen von ungebrannten Ziegelsteinen

Dispositif pour fabriquer des briques vertes


(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 16.06.1986 NL 8601553

(43) Date of publication of application:
23.12.1987 Bulletin 1987/52

(73) Proprietor: Machinefabriek de Boer B.V.
NL-6541 BS Nijmegen (NL)

(72) Inventors:
  • Rensen, Henricus Gerardus Richardus
    NL-6681 ZH Bemmel (NL)
  • Kosman, Wilhelmus Jacobus Maria
    NL-6562 DA Groesbeek (NL)

(74) Representative: Hoijtink, Reinoud et al
Arnold & Siedsma, Advocaten en Octrooigemachtigden, Sweelinckplein 1
2517 GK Den Haag
2517 GK Den Haag (NL)


(56) References cited: : 
GB-A- 1 419 014
US-A- 1 888 398
NL-C- 70 383
US-A- 2 061 497
   
  • Brochure of the Dutch firm Ammeraal "Proces - en Transportbanden", dated 1985
  • Brochure of the Dutch firm Staal-en Machinebouw, Aberson bv
   


Description


[0001] The invention relates to a device as described in the preamble of claim 1. This device is known from NL-A 70 383.

[0002] In this known device there are problems with the disposal off the trimmed of quantity of clay. These quantities of clay are usually carried off sideways with or without auxiliary devices. This however causes problems when use is made of multiple mould containers conveyed parallel to one another.

[0003] The invention has for its object to provide a solution to this. This is achieved by a device with the characterizing steps as claimed in claim 1.

[0004] By carrying away the excess of clay using a conveyor surface which connects directly onto the trimming device, a large number of mould containers can be employed moving in parallel.

[0005] A preferred embodiment has the features as specified in claim 2. Using the belt conveyor the clay is carried away to a point at a distance from the discharge device.

[0006] A further embodiment has the characterizing steps according to claim. In order to ensure the removal of the clay carried away by the conveyor surface from this surface the steps according to claim 3 are taken. In order to rid the belt of all the clay before the following cycle the steps according to claim 4 are taken.

[0007] The invention will be elucidated on the basis of a preferred embodiment.

Fig. 1 shows schematically the side view of an automatically operating device for manufacturing green bricks according to the invention, and

fig. 2 shows on a larger scale the detail II from fig. 1.



[0008] Arranged on the endless running conveyor 1 are mould containers 2, which move beneath the clay filling device 3.

[0009] The latter injects into the mould containers a quantity of clay which is pressed into the containers by the pressure roller 4. Using a cutting wire 5 which is arranged so as to be stationary the excess clay 6 is trimmed from the moving mould containers. Connecting directly onto the trimming device 5 is the endless running belt conveyor 7 which is mounted so as to be sloping. As a result of the movement in the direction of the arrow 8 the piece of clay is carried against belt conveyor 7 and carried away by it owing to the adhesive qualities of the clay. Belt conveyor 7 carries the piece of clay up to a point close to the discharge end 9 where by means of the cutting wire 10 the clay is released from the belt. The scraper member 11 scrapes off the belt any clay that may still be present on it. The pieces of clay fall onto the roller conveyor 12 which is directed crosswise relative to belt conveyor 7.

[0010] As a result of the step according to the invention multiple mould containers can be transported parallel to one another by conveyor 1 in view of the fact that, owing to the arrangement of belt conveyor 7, disposal of the excess clay cannot obstruct the conveyance of the mould containers.


Claims

1. Device for manufacturing unfired bricks, comprising a conveyor for conveying mould containers in a circular movement, a device for filling said mould containers with clay, a pressure mechanism for pressing the clay into a mould container, and a cutting device fortrimming excess day from the top of a mould container, characterized by an endless belt conveyor running in the direction of the mould container conveyor for the trimmed off clay arranged close to said cutting device.
 
2. Device as claimed in claim 1, characterized in that a conveyor directed transversely transversely the belt conveyor is arranged at the discharge end thereof.
 
3. Device as claimed in claim 2, characterized in that a cutting device a placed close to the discharge end of the belt conveyor.
 
4. Device as claimed in claims 1-3, characterized in that a scraper member is placed close to the belt conveyor.
 


Ansprüche

1. Vorrichtung zum Herstellen von ungebrannten Ziegelsteinen mit einer Fördervorrichtung zum Fördern von Formbehältern auf einer kreisförmigen Bewegungsbahn, mit einer Vorrichtung zum Füllen der Formbehälter mit Lehm, mit einem Preßmechanismus zum Pressen des Lehms in einen Formbehälter hinein und mit einer Schneidvorrichtung zum Abtrennen überschüssigen Lehms von der Oberseite eines Formbehälters, gekennzeichnet durch einen endlosen Bandförderer, der in Richtung der Formbehälterfördervorrichtung für den abgetrennten Lehm läuft und dicht an der Schneidvorrichtung angeordnet ist.
 
2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß am Abgabeende der Bandförderer eine in bezug-auf den Bandförderer quergerichtete Fördervorrichtung angeordnet ist.
 
3. Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß eine Schneidvorrichtung dicht benachbart zum Abgabeende des Bandförderers angeordnet ist.
 
4. Vorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß eine Abstreichvorrichtung dicht benachbart zum Bandförderer angeordnet ist.
 


Revendications

1. Dispositif pour la fabrication de briques vertes, comprenant un convoyeur destiné à transporter des récipients formant moules suivant un mouvement circulaire, un dispositif de remplissage d'argile dans lesdits récipients formant moules, un mécanisme compresseur destiné à comprimer l'argile dans un récipient formant moule, et un dispositif de coupe destiné à découper l'argile en surplus de la partie supérieure d'un récipient formant moule, caractérisé en ce qu'il comporte un convoyeur à bande sans fin pour l'argile découpée, ledit convoyeur à bande sans fin étant disposé à proximité du dispositif de coupe et travaillant dans la même direction que celle du convoyeur de récipients formant moules.
 
2. Dispositif suivant la revendication 1, caractérisé en ce qu'un convoyeur s'étendant transversalement par rapport au convoyeur à bande est disposé à l'extrémité de décharge de celui-ci.
 
3. Dispositif suivant la revendication 2, caractérisé en ce qu'un dispositif de coupe est disposé à proximité de l'extrémité de décharge du convoyeur à bande.
 
4. Dispositif suivant les revendications 1 à 3, caractérisé en ce qu'un organe racleur est disposé à proximité du convoyeur à bande.
 




Drawing