DE483129C - Box cutting and machine for the production of boxes in which the upper part and the lower part are formed from a piece of cardboard that is connected - Google Patents

Description

Box cutting and box making machine, at which upper part and lower part are formed from a coherent piece of cardboard The invention relates to the manufacture of boxes in which .als a starting material a single cardboard blank is used, which is made into a top and a it is formed contiguous lower part.

The production of boxes from a single blank is on already become known. However, the present invention has the object based on making a box from a single blank, which in the final Condition of the so-called multi-part boxes in terms of external appearance and strength is equivalent, with the manufacture of the box in just a few operations going on.

The essence of the box cutout designed according to the invention consists in the fact that the lower part has special tabs. That when they are folded Form a closed winter part and in their position by special, with adhesive provided retaining tabs held «earth. The part of the blank from which the closed Upper part is to be produced also has additional tabs. on the Hold the adhesive side flaps of the top in place. Included can fold and connect the cardboard blank flaps to make it ready for use Schar_htel around a shaped block accompanying the process of the box, and the connection of the individual tabs is done exclusively by gluing.

The invention thus also enables the use of shaped blocks, as it is already known in the production of box parts, the production such boxes., which arise from a single blank, supplied.

The device according to the invention for processing the described Box blank provided for the purpose of producing the finished box is, is characterized in that a vertically acting folder the box brings at the end of a folding channel in the area of pressure stamps, so. that by a single stroke of the lower part of the cardboard blank around a farm block is folded into a closed box part, whereupon after automatic transfer .of the half-folded blank to .a second folding channel a second punch comes into effect that the upper part with the help of pressure: stamping in one working stroke folds in the second folding channel to form a likewise closed box part.

It is therefore actually only used to manufacture the finished box two operations required, the first of which is the closed one. Lower part, the second produces the closed upper part.

The invention is explained in more detail below with reference to the drawings.

Fig. I and ia show schematically in side view and top view the entire system, with those leading to the Roman numerals. Reference lines respectively indicate the shape of the box, which are available in the individual work stages.

Figs. A to 9 show the process of becoming according to the individual work stages. the folding box. Fig. - shows a top view of the cardboard blank with which the production of the folding boxes is started. This cardboard blank has through Kniffung erbbiegbare parts, namely in detail b the ground, c at the front and rear bottom edge, d depending tabs e, f, the appropriate, however, necessarily a length equal to half the width of the bottom have not b. At. the side edges g hang laterally from the bottom part b. At the rear B, odenkarvte d , the lid part lt is aasgelenken, which once has the front lid side edge i and the side edges h. In the extension of the front lid edge i marked with the m, there are two flaps n. Before the cardboard blank is placed on the machine, the edges g and small sections o of the edges h corresponding to the flaps n are provided with glue. Furthermore, a wooden form L (section i) of the size of the box, which is expediently provided with handle openings, is placed on the Bo.denteifi b.

This prepared cardboard blank is automatically fed to the machine at z, for example. The blank comes here first under a stamp 3, which the cardboard blank through a channel q. pushes down. Here, the edge c and the edge d together with the cover surface h and the edge i are bent vertically upwards (Section 3).

At the end of this downward movement, resilient fingers 5 o. to the side in front of the cardboard blank, whereby the flaps e, are bent (Dept. q.). The punch 3 now pushes the mold further down into a channel 6 after shortly before the fingers 5 went back again. In this channel 6 the Lugs g pressed against the lugs e, f that were bent in the previous work step. The three parts adhere together by the rubber coating applied to the flap g (Dept. 5).

Now comes a stamp or a push 7 in action that the Cardboard blank pushes through a channel 8a, whereby the previously standing up The lid h is bent over the already folded bottom part of the box. will (Dept. 6).

The box is now from a punch 8 - through a channel 9 pressed upwards, whereby the tabs: i experience the bend on the lower part (Dept. 7).

Kick again: springy fingers io on each side of the box in action to bend the approaches n (Dept. 8).

The punch 8 goes up again nine and presses the almost finished Box through a channel i i, which is disregarded for bending the previously no.Gh left tabs: h leads. The partial gumming o these tabs causes the connection with the approaches n (Dept. 9).

The box is now completely finished and goes into a drying tunnel 12, in which the adhesive hardens and the connection between the individual brackets in question. At the exit of this drying tunnel 1a the lids of the boxes are opened and the wooden form L removed.

The arrows drawn in Figs. Z to 9 provide a schematic representation the various movements. It is useful for the P. to be sniffed before his Processing nüt provided with all necessary imprints and stickers so that the. The box is ready to be packaged after going through the work steps described is. The great length of the sowing e, f is recommended to be inside the box to have a precisely limited space available.

Of course, the boxes can also be folded in other Enter the order in front of you, e.g. B. in.: In such a way that initially the pressure on the Side edge d is exercised, and that around this side edge d instead of as before around the bottom surface b, the box experiences its final folding. Practical Tests have shown, however, that the route described here is structurally the simplest and is the most reliable. The boxes made in this way are from the usual glued boxes cannot be distinguished in any way. You own in particular to accommodate cigarettes o.

Claims (1)

PAT1? NT CLAIMR: i. Box blank for the production of boxes in which the upper part and the lower part are formed from a coherent piece of cardboard., Characterized in that the lower part has special flaps (e, f) which when folded form a closed lower part and their position by special, with Holding tabs provided with adhesive (g) are held, while the part of the blank from which the closed top part is to be produced also has additional tabs (n) which hold the side tabs (k) of the top ax provided with adhesive in position, such that the folding and connection of the cardboard blank flaps to: the ready-to-use box can be carried out around a shaped block accompanying the operation of the box and the connection of the individual flaps is effected exclusively by gluing. a. Machine for folding box blanks according to claim i, marked by a vertically acting folder (3), which brings the box at the end of a folding channel (q.) Into the area of pressure star cones (5), so that by a. single working stroke the lower part of the P, appzubnittas is folded around a form block (i) to form a closed box part, whereupon, after the half-folded blank is automatically transferred to a second folding channel, a second punch (8) comes into effect, which the upper part with the help of pressure stamps ( io) folds into a working stroke in the second folding channel (9) to form a likewise closed box part.