US 3,942,929 AGranted

Continuously operating press

AssigneeBison-werke Bahre & Greten GmbH & Co. KG

InventorAlbert De Mets

Life of this patent

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Abstract

A continuously operating press utilizing facing endless belts for compressing chip material into chipboards, fibreboards and the like. Each of the belts is constructed as an endless belt formed of a plurality of heatable planar chain links. For conveying and directly engaging the chip material, corresponding endless steel bands envelope the chain belts. Gas flame burners are arranged in casings for directly heating a portion of the chain run at a position spaced from the engagement with the chip material. Each of the casings also include burner exhaust gas conducting channels for conducting the hot exhaust gases adjacent portions of the chain which are not impinged upon by the flame at a particular given time. Also, conduit means for the flame burner exhaust gases are provided for conducting the exhaust gases to heat the endless steel bands by way of Z-shaped channeled housings arranged at a position spaced from the casings for the flame burners and immediately adjacent the steel bands.

Claims13

Dependent claims

A press for producing boards such as chipboards, fibreboards, and the like;

said press comprising:
a first movable endless belt formed of heatable belt parts,
a second movable endless belt formed of heatable belt parts,
guiding and moving means for guiding and moving said first and second belts with respective outer surfaces of said belts in facing relationship and moving in the same direction over a material pressing portion of the respective travel paths of said belts such that material forming said boards can be conveyed by and compressed between said belts along said material pressing portion of said respective travel paths,
heating means for heating at least one of said first and second belts, said heating means including at least one flame burner directing a heating flame against a portion of at least one of said belts and burner exhaust gas conducting means for directing exhaust gases from said at least one flame burner against portions of at least one of said belts which are spaced from said portion being directly heated by said heating flame, and
temperature control means for controlling said burners as a function of the temperature of the associated belt.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/563,398Filed 31 Mar 1975 · division
Priority: DT 22111918 Mar 1972
Granted: 9 Mar 1976
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

B30B 5/06
Wherein the pressing means is in the form of an endless band: co-operating with another endless band
B27N 3/24
Moulding or pressing: characterised by using continuously acting presses having endless belts or chains moved within the compression zone
B30B 15/34
Details of, or accessories for, presses; Auxiliary measures in connection with pressing: heating or cooling presses or parts thereof
B30B
Presses in general