SU122398A1 - Apparatus for making blanks in the manufacture of cartons - Google Patents

Description

A device for the manufacture of blanks in the manufacture of cardboard packaging is known, which includes a device for longitudinal cutting of cardboard and forcing share bending lines and a device for transverse cutting of blanks that are self-contained devices in this device.

In the described device, in order to simplify the design, a pair of continuously rotating and spreading one above the other cylindrical drums, of which the top one is equipped with several disk slotted knives and several half-disk figured knives having projections on one side, are used as a device for longitudinal cutting of cardboard and forcing bending lines. with sharp edges for cutting cardboard and blunt edges on the opposite side for forcing fractional bending lines and for feeding it is, the lower drum has circumferential kanav1ki for engaging therein the upper knife drum. A device for transverse cutting of blanks is made in the form of a flat spring-loaded knife, kinematically connected for its movement vertically and horizontally by means of a curvature-sympathetic mechanism with a bottom drum device for longitudinal cutting of cardboard. To clean the annular grooves of the lower drum of the device for the longitudinal cutting of cardboard, cleaners were used, made in the form of hinged spring-loaded knives, entering with their blades into the annular grooves of the lower drum.

FIG. 1 - device operation diagram; in fig. 2 shows a device for the manufacture of blanks, side view.

For feeding cardboard 1, longitudinal p-cutting it onto workpieces 2 and forcing the parting lines 5 to bend on them, a pair of continuously rotating and arranged one above the other cylindrical drums 4 and 5 connected to each other by a gear recess No. 122398 is mounted on the device

Cottage 6. The top drum 4 is equipped with several di-cutting knives 7 for cutting side waste 8 from a moving cardboard 1 and for longitudinal cutting it into separate blanks 2, as well as several semi-disk figured knives 9 having sharp edges 10 on one side and, on the opposite side, blunted edges for forcing the curvature 3 of the bending lines on the workpieces 2 and for feeding the cardboard. The lower drum 5 has annular grooves // in which knives 7 and 5 of the upper drum 4 enter. To cross the transverse lines 12, to bend the valves 13 of the workpiece 2, two wires 14 are passed through the ends of the projections 10 of the half-disk knives 9, and lower drum 5 are made respectively longitudinal grooves. For cross cutting blanks. 2, a device 15 is mounted in the Device, carrying a flat spring-loaded knife 16. For moving the knife 16 vertically and horizontally, the device 15 is connected to the lower drum 5 by means of a crank-drive rod mechanism 17 and moves along the rails 18 on the slide along with the workpiece 2. annular grooves // of the lower drum 5 on the frame of the device are mounted articulated spring-loaded knives 19, which are included in the annular grooves // with their blades.

The device in the manufacture of blanks, cardboard containers works as follows. Cardboard (in the form of a mite) is loaded from a roll (not shown in the drawing) between rotating cylindrical drums 4 and 5, and the latter are continuously fed for cutting into blanks 2, while the extreme slotted edges 7 are cut from cardboard / side waste 8, which are retracted The hardware from the device by guides 20, and slotted knives 7 located between the extreme slotted knives 7, produce longitudinal cutting of cardboard 1 into strips corresponding to the width of the workpiece 2. At the same time, the semi-disk figured knives 9 with sharp edges of the projections 10 are made on the blanks 2 short curls 21 needed to form the valves 13 of the cardboard container, and the blunt edges of the figured knives 9 push through the blanks 2 proportional lines 3 of the bend along which the cardboard container should roll. At the same time, the lodges 7 and -9 of the upper drum 4 enter into the annular grooves of the lower drum 5. When the projections 10 of the figured knives 9 exit from the blank 2, the longitudinal wires 14 push through the blanks 2 at the bottom of the slots 21, the transverse lines 12 for the folding of the valves 13 cleaning the annular caps from the waste resulting from the cutting of the cartope 1 is carried out by knives 19, the blades of which enter the grooves of the lower drum 5 cut billet 2 cut in the longitudinal direction and the knives 9 of drum 4 but guide 22 lazy 15 for transverse cutting of blanks for flat knife 2/5. The device 15 under the action of a crank mechanism. 17 moves with the fire 16 and with the workpiece 2 on the carriage 18 along the guides 23 in the horizontal direction, the knife 16 moving simultaneously vertically, cutting the workpiece 2 in the middle of the short slots 21 so that half of their length remains on the cut workpiece 2, and the other half on the following blanks 2, coming out from under the drum 4, after which under the action of the same crank-rod mechanism 17 and the spring 24, the device 15 is returned to its original position, and the finished blanks 2 are removed from the devices but. The movement of the cardboard / under the influence of continuously rotating drums 4 and 5 n cutting it on the workpiece 2 thus occurs continuously.

Subject invention

Claims (3)

1. A device for the manufacture of blanks in the production of cardboard packaging, including a device for longitudinal cutting of cardboard and forcing share bending lines and a device for transverse cutting of workpieces, characterized in that, in order to simplify the design, in it as a device for longitudinal cutting of cardboard and forcing through bending lines, a pair of continuously rotating and arranged one above the other cylindrical drums, of which the upper one is equipped with several disk slitting knives and Multiple half-disc shaped knives. And having protrusions with sharp edges on one side and for cutting cardboard, and on the opposite side, blunt edges for pushing the bend dividing lines and for supplying cardboard, the lower drum has annular grooves for the knives to enter them. top drum. 2. The device according to claim 1, of; 1, it is because the device for the transverse cutting of the blanks is made in the form of a flat spring-loaded knife, kinematically connected for its vertical and horizontal movement by means of a crank-connecting rod mechanism with a lower drum devices for the longitudinal cutting of cardboard. 3. The device for l. 1, characterized in that for cleaning the annular grooves of the lower drum of a device for longitudinal cutting cardboard used cleaners made in the form of pivotally mounted spring-loaded knives, entering with their blades into the annular grooves of the lower drum.