Method and device for the division of metal coated laminate webs into individual panels
OwnerKurt Heldinventor
Life of this patent
Estimating the term…
Abstract
A process and device for subdivision of a continuously fabricated metal backed laminate web into individual panels of any size, uses a computer and a numerically controlled saw. A contour path is controlled by the computer. A saw blade of the saw located in the saw head has a side support at the severance edges to be cut. This side support contains small cutter plates which are applied with one of their side faces against the saw blade with slight pressure. Each support has an additional narrow edge surface which is held against the metal backed laminate web. For trimming pressed edges of the web that are cured without pressure, fixed circular saws with their own side supports are arranged at the edge of the metal backed laminate web, upstream of the saw head.
Claims19
A process for subdividing a continuous web into panels having a desired size, the web having a material core made of plural resin impregnated web layers with a metal foil lying on at least one surface of the core, comprising:
- drawing the web and metal foil layers from rollers;
- bringing the web and metal foil layers together to form a web;
- extruding the web under pressure and heat to form a compact laminate web;
- feeding the laminate web continuously in a feed direction;
- storing the desired size for the panels in a computer;
- using the computer to control a saw having a saw blade to cut the laminate web into panels at cut edges in the laminate web;
- the saw blade having teeth and being rotated to cut through the laminate web from a first surface to a second surface thereof, to form a severed edge in the web;
- slidably contacting opposite sides of the saw blade with a pair of cutter plates, the cutter plates contacting the saw blade with slight pressure and without play, in the area of the teeth of the saw blade and on the side of the web carrying the second surface of the web, the second surface of the web having the metal foil layer thereon, so as to support the saw blade;
- the cutter plates each having a narrow edge extending parallel to the severed edge of the web;
- and slidably contacting the second surface of the web with the narow edges as the teeth of the blade emerge from the second surface of the web to produce a severed edge in the web which is free of burrs.
A device for subdividing a web into panels having a desired size, the web having a material core made of plural resin impregnated web layers with a metal foil layer on at least one surface of the core, comprising:
- a plurality of web layer take-off units each for feeding one impregnated web layer in a feed direction;
- at least one meta1 foil take-off unit ofr feeding a metal foil in the feed direction;
- a double band press positioned downstream of said take-off units in the feed direction for receiving the impregnated web layers and foil layer and for applying pressure and heat to the layers to form a compacted laminate web for movement downstream of the double band press in the feed direction;
- transverse cutting means downstream of the double band press in the feed direction for making transverse cuts in the laminate web to subdivide the laminate web into panels;
- a computer operatively connected to said transverse cutting means to control said transverse cutting means;
- said transverse cutting means comprising a numberically controlled saw having a trolley mounted for movement parallel to the feed direction, a carriage mounted to said trolley for movement transversely to the feed direction and a saw head mounted to said carriage and having a saw blade for cutting the laminate web with movement of the saw head transversely to the feed direction;
- said saw blade having teeth and being rotatably mounted to said saw head for cutting through the web from a first surface to a second surface thereof, the metal foil layer being carried on the second surface of the web;
- means connected between said saw head and said carriage for moving said saw head vertically toward and away from the laminate web with respect to said carriage for moving said saw blade into and out of engagement with the laminate web;
- and two side supports connected to said saw head on opposite sides of said saw blade and engageable against the laminate web adjacent the saw blade and on opposite sides of a severed edge cut into the laminate web by said saw blade for supporting the material of the laminate web to permit the formation of burr-free cut edges in the panels subdivided from the laminate web;
- each side support comprising a hard metal alloy cutter plate engaged with slight pressure against a side of said saw blade in the area of said teeth and on the side of the web having the second surface thereof, each cutter plate having a narrow cutting edge extending in the transverse direction of movement of said saw head and engaged against the second surface of the web and at the severed edge of the web during cutting of the web by said saw blade for counteracting a force component in a rotational direction of said saw blade which is applied to the laminate web during cutting of the laminate web, said cutting edge of said cutter plates each sliding along the laminate web with movement of the saw head transversely across the laminate web.
Dependencies are inferred from the claim text.