SU1423377A1 - Apparatus for cutting paper sheet stock - Google Patents

Description

(L

with

four

N3 00 C / 5 H

11423377

. I The invention relates to the printing industry and can be AND (|; used to cut paper.

j The aim of the invention is to improve the cutting quality of the last sheet of paper being cut and the design of the cutting apparatus. FIG. Shows a device for

Sheet paper material, to Form, Ula Invention 5 section; Fig, 2 - table device

A device for cutting a sheet of paper material laid in a foot, containing a table, a power knife, installed with the possibility of reciprocating shifting. At the same time, under the sheets forms a vacuum, which with a force proportional to the square of the speed of the jet, presses the bottom of the foot sheets to the table 1, thus ensuring reliable pressing and high-quality cutting of the last sheets with a knife 7.

u in the plan.

A device for cutting sheet bulk material comprises a table 1, which is equipped with a marzan in the form of 15; lindra 2 with an axial hole 3 and a cutter 4 along the generatrix, connecting

P

nsnny with a source of compressed air.

the incised foot 5 is held on;

press 6 when cutting it with a knife 7. In the head section of table 1, there are made longitudinal grooves 8 connected by npopesbjo A.

The device works as follows:

Foot 5 is fed to table 1, pressed with a clamp b and manufactured with a knife 7. When the blade of the knife 7 approaches the sole of the foot 5, the cylinder 2 of the marzan turns and compressed air flows through the hole and slot Zi under the foot 5, creating aerodynamic back pressure knife cutting. At the same time, along the grooves of 8 air at high speed, 11 passes under the sheets of the front part

25

Nor, the beam clamping sheet material placed on one side of the cutting plane, the source of compressed

20 air, a marzan made in the form of a cylinder with a hole associated with a source of compressed air, and a slot along the generatrix associated with the hole and installed in the table with the possibility of axial rotation, as well as a means of creating a vacuum under the cut foot, characterized in , in order to improve the quality of the cut and simplify the structure of the struc-

25 this hole in Marzan made along the "th axis.

feet. In this case, under the sheets, a vacuum is formed, which with a force proportional to the square of the jet velocity, presses the bottom of the foot sheets to the table 1, thus ensuring reliable pressing and high-quality cutting of the last sheets with a knife 7.

Nor, the beam clamping sheet material placed on one side of the cutting plane, the source of compressed

air, a marzan made in the form of a cylinder with a hole associated with a source of compressed air, and a slot along the generatrix associated with the hole and installed in the table with the possibility of axial rotation, as well as a means of creating a vacuum under the cut foot, characterized in that in order to improve the quality of the cut and simplify the design, the means for creating a vacuum is accomplished in the form of longitudinal grooves located on the surface of the table from the side of the power knife, connected to the slot of the marzan, with

This hole in Marzan made along the "th axis.

Claims (1)

The claims in cylinder 2 with an axial hole 3 and a slot 4 along a generatrix connected to a source of compressed air. Cutting the foot 5 is held by the clamp 6 when cutting it with a knife 7. In the front of the table 1 there are longitudinal grooves 8 connected to the slot 4. The device operates as follows. Foot 5 is served on table 1, pressed with clamp b and cut with a knife 7, When the blade 7 approaches the sole of foot 5, the marzan cylinder 2 is rotated, and compressed air is supplied through the hole and slot 4 under foot 5, creating an aerodynamic backpressure to the knife cutting forces . At the same time, through the grooves 8, layered air passes under the sheets of the front part at high speed A device for cutting a sheet of paper material stacked in a stack, comprising a table, a drive knife mounted with the possibility of reciprocating movement *, a clamp beam of sheet material placed on one side of the cutting plane, a compressed air source, marzan, made in the form a cylinder with an aperture ^ connected to a source of compressed air, and a slot along the generatrix associated with the aperture, and mounted in the table with the possibility of axial rotation, as well as a means of creating a vacuum under the cut foot, with the fact that, in order to improve the quality of the cut and simplify the design, the rarefaction means is made in the form of longitudinal grooves located on the table surface from the side of the drive knife, connected to the slot of the marzan, in marzan is executed along its axis. FIG. 2 VNIIIPI Order 4476/19 Circulation 639 _________ Subscription Custom polygr. ave, city of Uzhhorod, st. Project, 4