DE102009003740A1 - Method for producing a packaging box, and packaging machine - Google Patents

Abstract

In a method of manufacturing a packaging carton using a first, lower carton blank forming a bottom on which the packaged goods rests, four walls, two of which are referred to as side walls and two as end walls, and a second carton blank is used , which forms a cover with the lid surface and with two connecting straps, and the first carton blank is conveyed on a transport path, proposes the invention that first the packaged goods placed on the bottom of the lower carton blank, from the lower carton blank two opposite side walls by machine folded, and from the side walls end walls are folded by machine, so that a cardboard is created, which has four corners in plan view, wherein in each corner adjacent a side wall and an end wall and merge material into each other, and from the lid carton blank the two i Compared to the rest of the lid surface, the connecting lugs are bent downwards in an angled manner to form tuck-in tabs, and then the lid is mechanically inserted from above into the lower carton blank by passing the tuck-in tabs between the packaged item and the end walls. Furthermore, the invention proposes a packaging machine suitable for carrying out the method.

Description

The Invention relates to a method for producing a packaging box, and a packaging machine for carrying out the method.

Out In practice, on the one hand packaging boxes are known which consist of a single carton blank are folded into a container, which bottom, Walls and Cover has, as for example of wine cartons, moving boxes u. Like. Is known. In generic method, however provided, the lid separately from the remaining carton blank of the Produce packaging cartons. Here are connecting straps on Lid provided, for example, outside on the side and end walls of the rest of the packaging box extend and create a bond that prevents the lid from slipping prevented. Such loosely fitting covers are however for one safe transport of the packaged goods are not well suited and find rather with packaging containers Application that serves as a storage container and not as a transport container.

Of the Invention is based on the object, a process for the preparation specify a packaging box, which a possible economical production of packaging boxes with separate Lid allows and to provide a packaging machine for carrying out this method.

These Task is by a method with the steps after Claim 1 solved and by a packaging machine having the features of the claim 9th

The Invention proposes in other words, in the two-part packaging box first Bottom part to create, in which from a single carton blank except the actual floor area also two side walls and two end walls be folded. The folding takes place in such a way that from the same Material cut both a proportion of a side wall and a Share a front wall is created. In this way, a lower part a packaging carton created in which from the top view considered, four corners are provided, which are each seamless, in which therefore a uniformly one side wall merges into an end wall. In this way, a very rigid design of these corners of the packaging carton and thus the stability of the final too favors cardboard boxes. Particularly economical is that the carton blank order the packaged goods are folded around, that is the packaged goods is placed on the bottom of the first carton blank before the folding operations of the cardboard base are completed. In this way, a tedious filling of the Avoid cardboard lower part, in which, for example, the packaged from above into the cardboard lower part would have to be pushed in.

Finally will the packing box is completed and closed by that the lid having second carton blank is supplied from above. The lid has two downwardly projecting tabs, the be inserted between the packaged goods and the end walls of the carton base, so that now the box is closed. Because the folding operations of the Carton blanks and the insertion of the lid in the lower part of the carton can be a high efficiency in the proposed method be achieved, for example, 50 to 60 cartons / min. on this way can be completed.

Advantageous can be provided that the two insertion tabs of the lid to rejuvenate downwards, So have a decreasing width down, so they to form one or both lateral ends each an insertion bevel, the the introduction the lid, in particular of these two insertion tabs, in the facilitate lower carton.

Advantageous can the one side wall of the lower carton blank over the Bottom be folded up before the packaged goods on the Floor is applied. In this way, a kind of stop for the packaged created, which the loading of the lower carton blank facilitated with the packaged goods. Advantageously, the first carton blank have a section that not only forms a side wall, but the area shares has both the side wall and at least one end wall. In still lying aligned side wall can be the first end walls be set up before the side wall opposite the Ground is folded upwards by machine. In this way, the Design of the carton in ecological and economic advantageously with as possible few glue seams allows.

Advantageously, an overlapping of the two end walls can be provided on one end face of the carton created from the lower carton blank, which overlaps at least a portion of its height, so that the two end walls can be connected to one another in the region of their overlap, for example by gluing together. The other end face, however, can advantageously have as large an open recess as possible, so that the cardboard is not only suitable as a packaging and transport container, but also directly for the presentation of the goods, so that a As economical as possible handling of the goods until sale is possible.

Advantageous the lid can be glue-free in the rest Packaging box be plugged. This is not only in economic terms and more ecological Regards advantageous, but also allows a particularly economical Handling the container at the presentation Product: The lid can be easily removed from the rest of the packaging box be removed again without having to use a tool or without tear marks to leave so that the goods easily from the opened packaging box can be removed.

Advantageous the lid can be in at least two steps in the other packaging board be plugged in: In a first step, the lid first on the rest Packaging box mounted, with the two tuck tabs only partly in the rest Immerse packaging box. Only in a second, downstream Work step then the lid to its final depth brought, in which the two Einstecklaschen deeper into the remaining packing box be inserted, for example, until the lid rests on the goods, or until those leading the lid Insert tools on the upper edges of the sides or end walls of the other packaging carton bump. Through this two-part insertion of the lid can be an automatic Lidding station be divided into specialized sections, from where the first touches the lid. The packaging box can with lid continuously conveyed to achieve high packaging performance, and these The first section of the lid station does not have to be designed over the entire length be in the conveying direction the carton would be required around during of advance of a box not only to put on a cover, but even on his final To bring depth.

Advantageous can these two plugins, namely the placement, so the provisional insertion, and the subsequent, final plugging of the lid in the rest Packaging board can be performed by rotating components. These sink from above onto the packaging board and effect the desired Downward guidance of the Cover. By the corresponding rotational speed of this rotating Components can be the plant in a simple way to the desired packaging performance and with the respective feed rate of the remaining packaging carton synchronize.

by virtue of the rotational movement, in which the insertion tools about an axis rotate, which runs transversely to the feed direction of the packaging carton result different translational Geschwindingkeitenanteile the plug-in tools in the feed direction of the packaging box. It therefore finds a relative movement between the respective insertion tool and the packaging box, in particular its lid instead. Is advantageous Therefore, the lid on such a plug-in tool slidable held, so that this relative movement can be performed easily, without incorrect positioning of the lid on the rest of the packaging box cause.

Advantageously, a high degree of adjustability or format flexibility in a proposed packaging machine can be achieved by being adaptable to the production of packaging cartons of different dimensions:
For example, it may be provided that the lid inserter and the lid plug are height-adjustable relative to a conveyor, which conveyor guides the carton blank. This Relativverstellbarkeit can be achieved by a height adjustment of either the Deckeleinsetzer and Deckelste cker, and / or by a height adjustment of the conveyor. In any case, lid inserter and lid plug can thus be arranged at a variable distance above the conveyor, so that they can be adapted to different heights of the packaging boxes to be produced.

moreover can be advantageously provided that the speed of Deckeleinsetzer and lid plug on the one hand relative to the conveying speed of the conveyor is adjustable so that the lid station on different Way with the conveyor can be synchronized. For example, it may be provided the lid inserter, the lid plug and the conveyor independently so different speeds in the drives of these Provide components, or breaks in the drive of one of these components to provide while another of these components continues to run. When switching to a other carton size can For example, carton blanks in the conveying direction now greater length than previously by means of the conveyor be brought to the lid station, and lid inserter and lid plug can either pause or be driven at a slower speed if longer packaging cartons are to be produced and the carton blanks accordingly longer base dimensions than previously.

One embodiment The invention will be described below with reference to the purely schematic Dartstellungen explained in more detail. there shows

1 a perspective view of a Cover station of a packaging machine,

2 a plurality of finished folded bottom carton blanks, and a plurality of top carton blanks in different folding stages, the bottom and top carton blanks being shown in different arrangements relative to each other according to the manufacturing process of the carton, in a perspective view directed towards the back of the carton, and

3 a representation similar to that of 2 but in a perspective view directed towards the front of the packaging cartons.

In 1 a lid station is shown. The lid station 1 includes a lid magazine 2 , in which there is a stack of flat carton blanks to be formed to the lid. The individual flat lid carton blanks get into a blank former 3 For example, with the help of a rubberized roll, the top of each blanket carton blank from the stack of the lid magazine 2 withdraws. In known manner, the lid cardboard blank is now in a blank feed 4 inserted, for example in a conventional manner by means of a conveyor belt.

The blank carrier 4 transports a lid carton blank 5 linear, for example, always the same height, the two ends of the lid cardboard blank 5 over the two side edges of the blank conveyor 4 protrude. You get against a development linkage 6 which extends from a height above the blank conveyor 4 to a height below the blank conveyor 4 extends, so that the laterally projecting ends of the lid cardboard blank 5 be angled downwards during their transport, so that the lid 5 gets a downwardly open U-shaped contour.

At the end of the blank conveyor 4 a transfer of the molded lid takes place 5 from the blank former 3 to a lid inserter 7 , The lid inserter 7 has three arms 8th on, which are provided with vacuum cups, so they each have a lid 5 can hold on their underside. The lid inserter 7 is rotatably mounted and rotates clockwise. The grasped and the vacuum suckers of his arms 8th hanging lid 5 are thus during the rotational movement of the height of the blank conveyor 4 brought down and get with their conically tapered end faces, which are used as push-in tabs 9 are designed in lower carton blanks 10 by means of a conveyor belt 11 to the lid inserter 7 introduced and further transported.

The lid 5 is when he has the lid inserter 7 leaves, only partially in the bottom carton blank 10 plugged in. The final completion of the packaging carton is done in a downstream workstation, the lid as a plug 12 is designated. Also the lid plug 12 has arms, which with the help of flat plates as Andruckpaddel 14 are configured, characterized in that the cover plug 12 is arranged lower than the lid inserter 7 , he performs the Andruckpaddel in his circular motion 14 down to a height, which ensures that the lids 5 completely in the bottom carton blank 10 be plugged in.

Both at the lid inserter 7 as well as the lid plug 12 ensures a circulating toothed belt 15 each one for the arms 8th or pressure paddle 14 always remain aligned horizontally, while otherwise a rotating holder 16 a circular movement about the central axis of the lid inserter 7 or the lid plug 12 performs.

In the central area near the central axis of the lid inserter 7 is one out 1 not visible cam or link plate provided. It ensures that during the circular movement of the owner 16 one to the lid inserter 7 extending pneumatic vacuum line optionally ge in operative connection with a pneumatic line section introduced or separated from this line section, which in each case to a vacuum suction on each of the arms 8th runs. That the lids 5 if you are from the blank shaper 3 to the lid inserter 7 safely with the aid of the vacuum suction device on the lid inserter 7 be held, however, that the vacuum suction is then switched ineffective, if the arm in question 8th the lid 5 with its two pockets 9 in a lower carton blank 10 has introduced and the relevant arm then due to the circular movement of the holder 16 moved further and from the lid 5 should be disconnected. Through this controlled by means of a crank disc or cam disk vacuum loading of the vacuum suction, each only on a part of the circular motion of the arms 8th is effective, on the one hand ensures that the detected cover of the Deckeleinsetzer 7 be released at the given time, and secondly, the required, to be installed vacuum suction power is reduced in an economically advantageous manner by the fact that the arms 8th on the section of their circular motion on which they do not have a lid 5 are provided, are separated from the vacuum.

The speed of rotation of the lid inserter 7 and the lid plug 12 is controlled in such a way that the arms 8th the same horizontal Ge speed as the conveyor belt 11 , and also the pressure paddles 14 have the same horizontal speed. While the arms 8th must be precisely synchronized to the correct insertion of a lid 5 or from its Einstecklaschen 9 in a lower carton blank 10 to ensure relative movements between the Andruckpaddeln 14 and their lids 5 comparatively less problematic. An exact synchronization of the lid plug 12 and his pressure paddles 14 with the horizontal speed of the conveyor belt 11 However, it is necessary for the reason that the distances of the lower carton blanks 10 on the conveyor belt 11 are fixed and guaranteed whoever, that in each case a Andruckpaddel 14 on the lid 5 one on the conveyor belt 11 brought up packaging cartons must meet.

As already described, the lid plug is 12 arranged lower than the lid inserter 7 , The cover plug 12 is also mounted vertically movable and fixable in different heights, so that its final height and thus the height of the Andruckpaddel 14 is adjustable in its lowest position and to the height of the lower carton blank 10 or to the desired height, in which the lid 5 to be finally able to be adjusted.

2 shows in a line of sight similar to that 1 in the lid magazine 2 located stack of lid cardboard blanks 5 , These stacks are tracked from bottom to top, if in each case the uppermost top carton blank 5 is taken from such a stack. In the area of the blank former 3 can be seen as gradually from the first flat top carton blank 5 the tucked tabs 9 be angled and so the final cover 5 is formed. Subsequently, this lid 5 in the area of the lid inserter 7 guided on a circular path down and thereby in a lower carton blank 10 used. The bottom carton blanks 10 are shown from the back of the final packaging box forth: There are two side walls 17 visible as well as two rear end walls 18 ,

In the area of the lid plug 12 is shown as the first partially in the lower carton blank 10 inserted lids 5 finally plugged to the desired height, so that finally, in 2 shown on the left, a finished packaging box 19 is present.

In 2 are the lid magazine 2 , the trimming shaper 3 , the lid inserter 7 and the lid plug 12 not shown, however, the corresponding reference numerals in the 2 in order to indicate in which area of the illustrated production sequence the corresponding stations of the packaging machine are provided.

3 shows the same situation as 2 , but from the other perspective on the packaging cartons 19 Seen: The lid magazine 2 is located in 3 left and the production direction is to the right to the finished packaging carton 19 , It can be seen that the two front end walls 18 only a small part of the front of the packaging box 19 so that a glance at the goods remains free, for example, on bottles in the packaging box 19 are provided. These bottles can advantageously already on the lower carton blank 10 have been set up before the bottom carton blank 10 has been folded into its final form, as shown in the illustrations.

The lids 5 have two holes 20 on, which serve the lid 5 tool-free and in the shortest possible time, ie with an uncomplicated handle, out of the packaging box 19 to be able to remove so that then the lidless packaging board, so the lower carton blank 10 , together with the goods contained in a sales room for the presentation and sale of the goods is suitable. The tedious unpacking of the goods is therefore on the quick and easy removal of the lid 5 limited.

Claims (14)

A method of manufacturing a packaging carton using a first lower carton blank forming a bottom on which the packaged goods rests, four walls, two of which are referred to as side walls and two being end walls, and a second carton blank being used a lid forms with the lid surface and with two connecting straps, and the first carton blank is conveyed on a transport path , characterized in that first the packaged goods are placed on the bottom of the lower carton blank ( 10 ), from the bottom carton blank ( 10 ) two opposite side walls ( 17 ) are folded by machine, and from the side walls ( 17 ) End walls ( 18 ) are folded maschi nell, so that a carton is created, which has four corners in the plan view, wherein in each corner a side wall ( 17 ) and an end wall ( 18 ) border on each other and merge into one another, and from the lid carton blank ( 5 ) the two connecting straps are angled downwards relative to the remaining cover surface by machine and push-in tabs ( 9 ), and then the lid ( 5 ) from the top into the lower carton blank ( 10 ) is inserted by the push-in tabs ( 9 ) between the packaged goods and the end walls ( 18 ). Method according to claim 1, characterized in that the two insertion tabs ( 9 ) of the lid ( 5 ) have a decreasing width downwards. Method according to claim 1 or 2, characterized in that the one side wall ( 17 ) is folded up against the ground before the packaged goods are brought to the ground. Method according to one of the preceding claims, characterized in that the lower carton blank ( 10 ) has a portion which both the surface portions of a side wall ( 17 ) as well as at least one end wall ( 18 ), wherein at still lying aligned side wall ( 17 ) first the end walls ( 18 ) are set up before the side wall ( 17 ) is folded over the machine upwards. Method according to one of the preceding claims, characterized in that on one end face an overlap of the two end walls ( 18 ) is created over at least a portion of its height, the two end walls ( 18 ) are glued together in the region of their overlap. Method according to one of the preceding claims, characterized in that the lid ( 5 ) glue-free in the lower carton blank ( 10 ) is inserted. Method according to one of the preceding claims, characterized in that the lid ( 5 ) in at least two steps in the lower carton blank ( 10 ) is inserted, wherein in a first step, first the lid ( 5 ) on the lower carton blank ( 10 ) is attached by the two push-in tabs ( 9 ) over only a part of their height in the lower carton blank ( 10 ) are inserted, and wherein in a subsequent step, the lid ( 5 ) is brought to its final depth by the two push-in tabs ( 9 ) deeper into the lower carton blank ( 10 ) are inserted. A method according to claim 7, characterized in that the Einsteckvorgänge are performed by rotating components which are transverse to the transport direction of the lower carton blank ( 10 Rotate) aligned axis and always remain aligned lying. Packaging machine for carrying out the method according to one of the preceding claims, characterized by a lid station ( 1 ), which is a blank former ( 3 ) for the mechanical bending of the two push-in tabs ( 9 ) opposite the middle part of the lid ( 5 ), and a lid inserter ( 7 ), which covers the lid ( 5 ) ma shinell up to a first insertion depth into the lower carton blank ( 10 ) of the packaging box ( 19 ) and a cover plug ( 12 ), which covers the lid ( 5 ) mechanically until a final insertion depth into the lower carton blank ( 10 ) leads. Packaging machine according to claim 9, characterized in that the lid inserter ( 7 ) lying arms ( 8th ), each with a lid ( 5 ) and the lid ( 5 ) on its underside, the arms ( 8th ) on a rotating holder ( 16 ), which is mounted about an axis transversely to the transport direction of the lower carton blank ( 10 ) and the arms ( 8th ) on the holder ( 16 ) are rotatably mounted on a holding axis, such that they together with the holder ( 16 ) perform a circular motion, during which they always remain lying aligned. Packaging machine according to claim 9 or 10, characterized in that the cover plug ( 12 ) lying aligned pressure paddles ( 14 ), which extends over the lid ( 5 ), wherein the Andruckpaddel ( 14 ) on a rotating holder ( 16 ), which is mounted about an axis transversely to the transport direction of the lower carton blank ( 10 ), and wherein the pressure paddles ( 14 ) on the holder ( 16 ) are rotatably mounted on a holding axis, such that they together with the holder ( 16 ) perform a circular motion, during which they always remain lying aligned. Packaging machine according to one of claims 9 to 11, characterized in that the lid inserter ( 7 ) is provided with a suction device, such that the lid ( 5 ) on the lid inserter ( 7 ) are kept suspended, wherein the suction device is automatically cyclically activated and deactivated, such that it is activated when a lid ( 5 ) from the blank former ( 3 ) coming into the detection range of the lid inserter ( 7 ) and that they automatically deactivate Fourth, when the lid ( 5 ) by means of the lid inserter ( 7 ) to the first insertion depth in the lower carton blank ( 10 ) is guided. Packaging machine according to one of claims 9 to 12, characterized in that the lid inserter ( 7 ) and the cover plug ( 12 ) relative to a carton blank ( 10 ) are height adjustable, such that they are adaptable to different heights produced packaging cartons. Packaging machine according to one of claims 9 to 13, characterized in that the speed of the lid inserter ( 7 ) and the lid plug ( 12 ) relative to the conveying speed of a carton blank ( 10 ) leading conveyor is adjustable, such that it is adaptable to different footprint dimensions produced packaging cartons.