SU579177A1 - Device for shaping boxes from flat blanks - Google Patents

Description

one

The invention relates to devices for the manufacture of packaging boxes and can be used in the cardboard and paper and other industries that manufacture containers for packaging products.

A device for forming cartons from flat blanks is known, which comprises a punch and a molding shaft with shafts supporting the rollers 1.

However, this device has a separate drive shaft, whose work must be coordinated with the movement of the punch, and readjustment of the device requires a large number of component parts.

The purpose of the invention is to improve the performance of the device.

For this, the punches have recesses, which are laid out in two opposite walls facing the shafts, which are spring-loaded in the radial direction and contain cylindrical nozzles interacting with the punch between the beaters, and also have grooves for moving the bendings in the axial direction.

FIG. 1 shows the box blank; in fig. 2 - the proposed device, isometric projection; in fig. 3 - the same view

from above; in fig. 4-puaison device, front view and side view.

This device contains installed on the bed 1 punch 2, molding sandwich 3 with

shafts 4 carrying benders 5, between which there are cylindrical nozzles 6 .adjust the sides of the workpiece. For retooling the device for different sizes xfoboc on the shafts, grooves 7 are made, in which the benders are fixed with screws 8 and moved

along the shafts. The shafts 4 are spring-loaded springs 9 to return them to their original position. The device contains containers 10 with glued, freely rotating rollers 11, the axes of which are located below the axes of the shafts 4. On the basis of the device, there are made guides 13 for the workpiece and an adjustable stop 12 for leveling the workpiece of the box. Poitta 2 has recesses 14 and needle fixers 15, which orient the workpiece relative to the punch.

The proposed device works as follows.

The box blank is fed along the guides 13 up to the stop 12. When the punch 2 moves progressively into the shaft 3, the clamps 15 orient the workpiece relative to the punch, the side walls and the workpiece come into contact with

the side surface of the cylindrical attachments 6 of the shafts 4 and rise to the punch, and the shafts under the action of friction between the side of the workpiece and the nozzles 6 of the shafts 4 are driven, rolling on the side of the workpiece a. Attached to the bend shafts. The bodies turn, bending the valves b of the box to the punch, and grease them with glue. Upon further movement of the punch into the shaft, the other two sides of the box begin to rise using the rollers 11 in the same way as the sides of the box. Then the lateral surface of the nozzles 6 of the shaft 4 comes into contact with the raised side of the workpiece and in the area of the notches 14 of the punch. Here, the adhesion force between the side of the workpiece and the surface of the recess of the punch becomes less than the spring force 9 due to some deflection of the cardboard into the recess, and the rollers with the beaters return to their original position. In this case, the glue is applied to the sides of the box, and the benders fall into the container 10 with glue due to the fact that the oly are in the plane passing through the sides with the assembled box and the protrusions of the bendings. Moving further into the mine, the box is finally folded.

Then the upper edge of the assembled box falls into the area of the shoulder of the schacht. At this point, the punch returns to its original position, and the assembled box is removed from the punch and drops out of the shaft onto the transport device (not shown).

The present invention allows for relatively small manufacturing costs to effectively use it both on a stationary drive and on equipment; serially produced (for example, presses), since shch water is needed only for the punch and automatic lines.

In addition, the lack of readjustment of removable parts of the molding shaft makes it possible to quickly and easily change the device to another box size.

Manufactured and tested in production conditions on 22 frame sizes of the prototype. The test showed high device performance (1200 boxes per hour) while maintaining BbicoKoro box quality, stability of its operation and ease of in-operation.

Claims (1)

1. French Patent No. 2141 software, cl. B 31 B 3/00, 1973. ff Ush, 1 FZH Bui enrpfia tfoHy view / Jfsl