Abstract: An apparatus is described for smoothing out the surface weight distribution of one or multilayer mats containing lignocellulose and/or cellulose with a binding agent dispersed therein for manufacturing of shaped articles, in particular in the form of wood chipboard, wood fiberboard or the like, wherein at least one vertically adjustable reverse brushing unit which extends over the width of the web is associated with a mat carrier which is fed via at least one scattering head. This apparatus is characterized, above all, by the reverse brushing unit comprising at least one vertically adjustable brushing roller having flexible bristles of a plastic material such as polypropylene, Teflon or the like which cooperates with a cleaning brush or a cleaning strip.
Type:
Grant
Filed:
March 24, 1995
Date of Patent:
June 25, 2002
Assignee:
Bison-Werke Baehre & Greten GmbH & Co. KG
Abstract: 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.
Type:
Grant
Filed:
April 28, 1994
Date of Patent:
March 12, 1996
Assignee:
Bison-Werke Baehre & Greten GmbH & Co. KG
Inventors:
Berndt Greten, Gunter Seeger, Klaus Poppelreuter
Abstract: 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.
Type:
Grant
Filed:
December 7, 1992
Date of Patent:
June 21, 1994
Assignee:
Bison-Werke Baehre & Greten GmbH
Inventors:
Berndt Greten, Gunter Seeger, Klaus Poppelreuter
Abstract: A lubrication system for a continuously operating press for the pressing of a multi-ply board web (119) of pre-manufactured material has a press gap defined between upper and lower runs of endless recirculating steel press bands (105). A slide coating (101) which extends over the width of the press zone is provided with grooves. Each press band (105) slides by means of a lubricant which is supplied into the slide coating via supply lines and is led away through discharge openings. Several grooves (107, 108, 110, 111) for the swirling of the lubricant are provided for the press band (105) at least in the two outer longitudinal edge regions of the slide coating.
Type:
Grant
Filed:
December 18, 1991
Date of Patent:
July 20, 1993
Assignee:
Bison-Werke Baehre & Greten GmbH & Co. KG
Abstract: 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.
Type:
Grant
Filed:
April 5, 1988
Date of Patent:
July 25, 1989
Assignee:
Bison-Werke Baehre & Greten GmbH & Co. KG