US 4,054,070 AGranted

Panel saw mechanism

AssigneeGlobe Machine Manufacturing Company

InventorVirgil Steiling

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Abstract

A cut-to-size saw mechanism having a dual, programable control system is provided for large sheet material, as plywood, hardboard, chipboard, fiberboard, and other large panels to be divided into small pieces by sawing. Sheet sizes in the range of 5 .times. 18' can be cut with a main strip or strips and a side, residual strip, with the residual having a maximum width up to a predetermined amount, such as 2'. Where desired, cutting patterns necessitate two asymmetrical patterns, the saw mechanism can be programmed to trim all 4 edges of a panel, divide the panel into main and residual longitudinal strips and cut the main strip or strips in one pattern length and the residual strip in another selected pattern length. All sawing is done while the panels or strips thereof are held by hold-down rolls, thereby assuring precision sawing. All sawing of the entire panel is programmed by thumb switches from a control panel and the same program may be repeated on subsequent panels until the programming is changed.

Claims7

Dependent claims

A panel saw mechanism comprising a plurality of panel strip, rotary driven, cutting saws;

panel conveyor means urging a panel through said panel strip cutting saws and dividing a panel, into a plurality of strips including a main strip and a residual strip;
a rotary driven, cutoff saw for sawing panel strips and cutting in a plane disposed at substantially right angles to the saw cuts of the panel strip cutting saws;
a plurality of sets of panel strip conveyor means, each set disposed in the line of travel of a panel strip passing said panel strip cutting saws and each thereof urging a panel strip past said panel strip cutting saws;
a plurality of measuring rolls, one thereof having a predetermined measured circumference engaging with and measuring a predetermined lineal travel of a main strip and another thereof having a predetermined measured circumference engaging with and measuring a predetermined lineal travel of a residual strip;
cutoff saw stroking means stroking said cutoff saw in a path across said panel strips in one direction of its stroking and clear of said panel strips in the other direction of its stroking;
a plurality of adjustable control means, one for each of the panel conveyor means and connected with and operated by a predetermined amount of turning movement of its measuring roll;
and control means for said saw stroking means connected with and responsive to each of said adjustable control means.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/686,701Filed 17 May 1976
Granted: 18 Oct 1977
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B27B 5/061
For dividing plates in parts of determined size, e.g. panels: devices having saws perpendicular to each other
Y10T 83/0562
With longitudinal severing: prior to transverse severing
Y10T 83/4455
Tool engages work during dwell of intermittent workfeed: operation initiated by work-driven detector means to measure work length
Y10T 83/54
Operation controlled by detector means responsive to work: actuation of tool controlled by work-driven means to measure work length