Importance

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Abstract

A paper cutting machine for cutting stacked plural paper sheets placed on a table (4). The machine includes a paper holder (2), which moves downward from the above along a vertical guide, a cutter blade (3) for moving upward from below the table (4). As a paper holder mechanism for the paper holder (2), a first nut (8) is screwed to a screw (7) to be rotated by a first motor (10). The first nut (8) and the paper holder (2) are coupled together via a link (5), and the cutter blade (3) is attached to a guide (13) formed with a tilted guide groove (14). An inner slider (15) protruding from the cutter blade (3) is fit to the guide groove (14), and the inner slider (15) engages with and coupled to a vertical groove (25) formed in a moving element (20). The moving element (20) is the one coupled with a second nut (19) screwed to a second screw (16) to be rotated by a second motor (17). Through attachment of eccentric gears (23a, 23b) to change rotation speed of the second screw (16), the machine can be considerably compact in size; be driven by a power-thrifty small-sized motor; and be efficient with shorter cutting time and labor savings. What is more, a cutter blade stopper mechanism prevents the paper sheets from being left uncut, thereby increasing the useful life of the cutter blade to a greater degree.

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First Claim