Rotary sheeters to suit them to the cut of wood veneers
AssigneeColombo & Cremona S.A.S.
InventorAristide Colombo
Life of this patent
Estimating the term…
Abstract
This invention refers to a multiple edge rotating blade type sheeter for cutting wood veneers, employing a main edged blade, designed to cut the progressing wood veneers in a minimum length equal to the arc between two successive cutting edges, and an auxiliary edged blade designed to remove a strip strictly containing a defective part of the wood veneer from each cut wood veneer, the main and auxiliary edged blades being opportunely spaced and their operations being controlled by means of an electronic apparatus.
Claims7
A rotary sheeter for cutting wood veneer material in sections, comprising a first conveyor belt for advancing the material towards a cutting zone;
- a main multiple edge rotary blade and a first holding-up roller mounted at the cutting zone and cooperating with said main blade to cut the material in a minimum length depending on an arc between two successive cutting edges of said main blade;
- motor drive means;
- first friction clutch means connected between said drive means and said main blade to operate the latter;
- a scanning device for inspecting the advancing material surface to detect possible imperfections thereon and generating signals in accordance with those imperfections;
- an electronic device for receiving the signals from said scanning device and storing said signals;
- an incremental pulse generator connected to said electronic device and operative for measuring the length of the passing sheet materials and controlled by said electronic device to operate said first friction clutch means;
- a rotary auxiliary multiple edge blade extended parallel to said main blade and being spaced therefrom in the direction of advancing of the sheet material;
- an auxiliary holding-up roller cooperating with said auxiliary blade;
- second friction clutch means connected to said motor drive means and to said auxiliary blade and electrically connected to said electronic device to operate said auxiliary blade to execute a cut intermediate a section of the material advanced from said main blade, said second friction clutch means being controlled by a signal generated by said electronic device and said incremental pulse generator when said scanning device detects the imperfections on the advancing material, so that said electronic device takes into consideration the spacements between said scanning device, said main blade and said auxiliary blade and said auxiliary blade is operated to execute said intermediate cut on the passing section of said material to cut a traversal strip containing an imperfection from said section.
Dependencies are inferred from the claim text.