Bison-werke Bahre & Greten Gmbh & Co Kg

Bison-werke Baehre & Greten Gmbh & Co. Kg

Bison-werke Bahre Und Greten Gmbh & Co. Kg

Bison-werke Baehre & Greten Gmbh

Gunter Seeger

Berndt Greten

Harry Neubauer

Dieter Wiemann

Klaus Poppelreuter

Gunter Bucking

Wilhelm Oldemeyer

Heinz-Everhard Keusgen

Hans J Komp

Reinhard Beyer

Particle boards having at least one surface made of a resin impregnated paper web are provided during their production with a surface structure due to the fact that a glass sphere blasted surface structure is provided for in the pressing surface of a double band press.

Apparatus for continuously producing plates having a structured surface

Method and apparatus for continuously producing plate-like webs having a

A continuously operating press is described in which endless bands are moved with constant speed around an upper and a lower press platten and a lubricant film is formed between the confronting press platten surfaces and the respectively associated endless band. The fluid which serves for the build up of the lubricant film is kept in this arrangement under a predeterminable hydrodynamic pressure in at least one press zone at the input side of the press, while a calibration zone is provided at the output side of the press in which the lubricant stands substantially only under static pressure.

Continuously operating press

A method and an apparatus for the continuous manufacture of particle board from a mat of cellulose based material in the form of particles, fibers or the like, together with at least one heat hardenable binder, features a high frequency heating station 4 disposed between a scattering station 2 and a finishing press 9. The mat 3 scattered in the scattering station 2 is continuously fed on an endless conveyor band 1 through a working gap defined between upper and lower electrode plates 5 and 6 of a high frequency capacitive heating arrangement in the high frequency heating station 4. A recirculating cover band 7 contacts the upper surface of the mat and the mat is moved with full-area contact between the upper and lower electrode plates 5 and 6, i.e. without any form of air gap. Several variants are described, in particular the upper and lower electrode plates 5 and 6 can be constructed to compress the mat to a certain degree. In the FIG. 2 embodiment several sequential pairs of electrode plates 5, 6; 5', 6' are used to heat the mat in stages with compression 10 taking place between sequential pairs of electrodes.

Apparatus and method for the manufacture of particleboard

Particleboard is manufactured by scattering an endless mat of chip and binder material on a series of overlapped mat carriers 17 moving on a forming conveyor 2 beneath a scattering station 1. A cut-off saw 5 is then used to separate the endless mat into mat sections 18 each of which is mounted on a respective mat carrier 17. The overlap between the mat carriers is eliminated and the laden mat carriers are removed from the forming conveyor 2 by an accelerating conveyor 6 which simultaneously operates as an intermediate store and a feed unit for a single storey press 8 arranged immediately after the accelerating conveyor 6. The accelerating conveyor 6 introduces the laden mat carrier into the inlet to the press from where it is transported into the press by internal transport devices of the press. After the mat section has been pressed to form a particleboard a pair of driven rollers 9 extract the mat carrier from the press and feed it towards a separating wedge 10. The mat carrier is deflected downwardly onto a conveyor 11 and the pressed board slides over the top surface of the separating wedge through further rollers 15. As soon as the mat carrier is fully located on a guide conveyor 11 beneath the separating wedge 10 the guide conveyor is pivoted downwardly and its direction of rotation is reversed so that the mat carrier can be transferred to a return conveyor 16. The mat carrier is then transferred back onto the forming conveyor from the return conveyor at a feeding station 14 which also serves to overlap the mat carrier with the preceding mat carrier and to turn the mat carriers over prior to them once again passing through the scattering station 1.

Method of manufacturing particleboard and the like

Particle boards are manufactured by the use of a forming line in which particulate material such as wood chips intermixed with a binder is deposited, in the form of a mat, by a scattering station 3 onto mat carriers moving on a forming conveyor 1 past the scattering station. The mat carriers are loaded by way of an accelerating conveyor 4 onto a faster moving storage conveyor 5 and are then stacked in the tiers of a vertically movable stacker loader 13 which in turn feeds a consolidation press for consolidating the mat sections into particle board. After the pressing operation the particle boards are ejected from the far side of the press and the now empty mat carriers are returned via the stacker-loader and a return conveyor 8 to a forwarding station 2 which feeds the mat carriers back onto the forming conveyor 1 for re-use. In a particularly preferred arrangement a pallet is provided in respect of each tier of the stacker-loader and the mat carriers are loaded onto the upper surface of the pallet and thereby introduced into the press. The pallet serves to eject the finished board from the far side of the press and to return the empty mat carrier which is slung beneath the pallet.

Forming line for use in the manufacture of particle boards

An arrangement for processing ligno-cellulose containing particles for the manufacture of wood-product plates. These have layers of oriented chips, and a chipper comminutes raw material. The fine material and dust are separated by a sifting device, and the sifted chips are provided with binder material by a gluing device. The chipper produces more chips of as great a length as possible than are required for forming of at least one cover layer of a mat. Behind the chipper, there are provided a wet-chip bunker and a dryer. The sifter separates the chips, obtained after removal of the fine material and the dust, into two fractions. The chip composition of one of these fractions, during the processing time, constantly contains chips which are as long as possible and which are more than that required for forming the mat layer. The other fraction has shorter chips obtained during chipping, and both fractions are present each in at least one bunker. A feeder supplies a part of the chips that are as long as possible from the first fraction to the chips of the second fraction. The feeder may be arranged between the sifter and the bunkers.

Installation and process for processing of ligno-cellulose for the

A device for forming chip boards and the like including a conveyor belt for conveying a fleece of chip material to a press for compressing the fleece, a motor for intermittently moving the conveyor belt by one press length and at least one spray nozzle for spraying a fluid mist onto the fleece before entering the press is further provided with a moving coil regulating device for controlling the supply quantity of fluid supplied to the spraying nozzles. The moving coil regulating device is made responsive to the rotational rate of the motor driving the conveyor belt so that the rate at which fluid is supplied to the fleece varies in accordance with the movement of the conveyor belt.

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Springe, Germany

Gunter Seeger