EP0697339A1 - Method and device for manufacturing a display package and the correspondingly manufactured display package - Google Patents

Abstract

The display packing mfr. process is for a packing consisting of a tray-like display part and a hood-like cover part fitting into it and releasably connected to it by gluing points and a tear-off tab. The packing is made in a device with a shaft (33) to receive the flat-stacked cover parts and another shaft (34) for the display parts. There are devices (39,40; 41,42) serving the shafts to remove the folded parts out of the shafts and to straighten them up to form rectangular shells (28,29). There is a pusher (35) to fit the shells to each other. The device used includes a jet (36) to supply glue to stick the parts to each other.

Description

The invention relates to a method and a device for producing a display packaging according to the preamble of claim 1 and claim 3. Furthermore, the present invention relates to a display packaging according to the preamble, preferably produced by this method or with such a device of claim 12.

Display packaging consisting of a shell-like or tray-like display part and an associated hood-like cover part, which is placed on the bottom inside the display part and is detachably connected to it via tear-off tabs, is generally known. For transport, the cover part is firmly connected to the display part, preferably via adhesive points arranged on the tear-off tab mentioned. To present the packaged goods, the adhesive points are removed by removing the tear-off tabs and the cover part is removed from the display part. All that remains for the presentation of the goods is the display part including the goods, the packaging being such that after removing the cover part the goods are presentable in a predetermined manner. The tray-like display part consists of usually from longitudinal and side walls and a bottom formed by folding tabs arranged on the longitudinal and side walls. In a very similar way, the hood-like cover part is provided with longitudinal and side walls and a top wall, which can be produced by folding tabs arranged on the longitudinal and side walls.

The aim of the present invention is to provide a simple method and a correspondingly simple and thus functionally reliable device for producing a display packaging of the type mentioned. Furthermore, it is an object to provide display packaging that is particularly easy to manufacture.

In terms of process engineering, this object is achieved by the characterizing features of claim 1, device technology by the characterizing features of claim 3 and packaging technology by the characterizing features of claim 12.

The main idea of the present invention is that display packaging of the type in question here can be produced from extremely simply designed parts, namely parts that are generally available in bulk. The individual parts, namely the display part and the cover part, are each made from roughly rectangular blanks, on each of which one longitudinal side has floor or cover tabs which are each also rectangular. The blanks are glued to one another along a side edge, so that rectangular sleeves can be produced, on one end of which the folding tabs for producing a base for the display part or a top wall for the cover part are located. In accordance with the simplicity of the packaging parts, the method and the device for producing a display packaging are simple and reliable. The two parts that make up the display packaging according to the invention can be provided folded flat. The transport of the packaging parts to The packaging manufacturing location and the location of the filling can accordingly be designed inexpensively. The same applies to the storage of the packaging parts. During production, it is only necessary to ensure that the packaging part with smaller cross-sectional dimensions is brought into the packaging part with larger cross-sectional dimensions, the part with smaller cross-sectional dimensions preferably being the part moved for this purpose. Collisions of the packaging parts when they are inserted into one another can thus be reliably avoided.

Fig. 1

eine erste Verfahrensstufe zur Herstellung einer erfindungsgemäßen Display-Verpackung nach Aufrichtung von jeweils flach zusammengefalteten Verpackungsteilen in ineinandersteckbare Rechteckhülsen;

Fig. 2

eine weitere Verfahrensstufe zur Herstellung einer Display-Verpackung aus den Teilen gemäß Fig. 1;

Fig. 3

eine verfahrensgemaß hergestellte Display-Verpackung vor der Befüllung;

Fig. 4

eine Vorrichtung zur Herstellung einer Display-Verpackung gemäß dem Verfahren nach den Fig. 1 bis 3 in schematischer Seitenansicht;

Fig. 5

einen Teil der Vorrichtung gemäß Fig. 4 in Vorderansicht;

Fig. 6

das Vorrichtungsteil gemäß Fig. 5 in Draufsicht; und

Fig. 7

eine erfindungsgemäß ausgebildete Display-Verpackung, deren haubenartiges Abdeckteil nur angedeutet ist.

An exemplary embodiment of a method according to the invention, a device according to the invention and a packaging according to the invention are explained in more detail below with reference to the attached drawing. Show it:

Fig. 1

a first process stage for the production of a display packaging according to the invention after erection of each flat-folded packaging parts into rectangular sleeves which can be plugged into one another;

Fig. 2

a further process step for producing a display packaging from the parts according to FIG. 1;

Fig. 3

a display packaging manufactured according to the process before filling;

Fig. 4

an apparatus for producing a display packaging according to the method of Figures 1 to 3 in a schematic side view.

Fig. 5

a part of the device of Figure 4 in front view.

Fig. 6

the device part of Figure 5 in plan view. and

Fig. 7

an inventive display packaging, the hood-like cover is only indicated.

As already explained at the beginning, this is about the production of a so-called display packaging, which is preferably constructed as shown in FIG. 7. Accordingly, such a display packaging consists of a shell-like or tray-like display part 10 with longitudinal and side walls 11, 12 and a bottom 17 formed by folding tabs 13, 14, 15, 16 arranged on the longitudinal and side walls (see FIG. 1 and 3). Furthermore, the display packaging consists of a hood-like cover part 18, which is shown in broken lines in FIG. 7. This cover part 18 also has longitudinal and side walls 19, 20 and a cover wall 23 formed by folding tabs 21, 22 arranged on the longitudinal and side walls. As can be seen particularly well in FIG. 7, the cover part 18 is placed on the bottom inside the display part 10 and releasably connected to it by means of tear-off tabs 24 arranged on the side walls 12 of the display part 10. An adhesive point is provided between the tear-off tab 24 and the associated side wall 20 of the hood-like cover part 18, which is released when the tear-off tab 24 is removed. Then the hood-like cover part 18 can be removed from the display part 10, namely pulled out of it with a corresponding presentation of the goods 25 in the display part 10. The tear-off tabs 24 are connected to the side walls 12 of the display part 10 via predetermined breaking lines, in particular punching lines 26, so that they can be easily removed can be separated with two fingers from the side walls 12 of the display part 10 while dissolving the mentioned adhesive point.

In the area of the predetermined breaking line extending approximately parallel to the bottom of the packaging between the tear-off tab and the associated side wall of the display part, there is another Opening 27 is provided, the function of which is explained below.

1 to 3, a method for producing a display packaging according to FIG. 7 will now be explained. As already explained, the display packaging described consists of a display part 10 and an associated hood-like cover part 18. To produce the display packaging from the aforementioned parts, the display part 10 and cover part 18 are first provided folded flat. The parts provided in this way are then erected with the formation of sleeves, here rectangular sleeves 28, 29, as is shown in FIG. 1. The rectangular sleeve 28 is used to manufacture the display part 10, while the rectangular sleeve 29 defines the hood-like cover part 18. These sleeves 28, 29 are inserted with their bottom or top flaps 13 - 16 or 21, 22 facing each other, as shown in FIG. 2. For this purpose, the rectangular sleeve 28 assigned to the display part 10 is held in place, while the rectangular sleeve 29 assigned to the cover part 18 is inserted in the direction of arrow 30 into the rectangular sleeve 28, namely until the bottom edge of the cover part or the sleeve 29 assigned to it is at height of the bottom of the display part or at the level of the articulation of the bottom flaps 13-16 on the longitudinal and side walls of the sleeve 28 assigned to the display part 10. Shortly before this end relative position between cover part 18 or its sleeve 29 and display part 10 or its sleeve 28 is reached, an adhesive between display part and cover part or its sleeves 28 is passed through an opening 27 formed on at least one side wall of the display part or its sleeve 28 , 29 introduced. This introduction is indicated in Fig. 2 with the dash-dotted arrow 31. The adhesive introduced is smeared until the final relative position between the cover part and the display part or the sleeves between them is reached, so that a good adhesive connection between the cover part and the display part or the sleeves 28, 29 thereof is obtained.

3, the folding tabs 13, 14, 15, 16 arranged on the longitudinal and side walls 11, 12 of the display part 10 or its sleeve 28 are folded over to form the floor 17 into the floor plane. In this position, the display packaging is ready to be filled with goods. The filling takes place through the still open side of the rectangular sleeve 29 assigned to the cover part 18. Only after filling are the folding tabs 21, 22 folded in, forming a top wall. The packaging is then closed.

The previously mentioned adhesive strip between the display part and cover part is indicated in FIG. 3 with the reference number 32. This adhesive strip is located exclusively in the area of the tear-off tab 24.

For collision-free insertion of the rectangular sleeves 28, 29, the folding flaps 13, 14, 15, 16 arranged on the longitudinal and side walls 11, 12 of the display part or the sleeve 28 associated therewith are folded slightly outwards or spread out to form a kind of insertion funnel for the rectangular sleeve 29 assigned to the cover part.

The device for producing a display packaging of the aforementioned type is characterized by a first shaft 33 for receiving and providing flat-folded cover parts 18 or their sleeves 29, a second shaft 34 for receiving and providing flat-folded display parts 10 or their sleeves 28, Devices assigned to the first and second chutes for removing the flat folded parts 28, 29 from the chutes 33, 34 and for erecting them with the formation of rectangular sleeves 28, 29 facing one another with their bottom tabs 13-16 or top tabs 21, 22 Cover part or its rectangular sleeve 29 associated slide 35 for inserting the sleeves 28, 19 until the bottom side or the slide facing Edge of the sleeve 29 is at the level of the bottom of the display part or its sleeve 28, and
a nozzle 36 assigned to the display part or its sleeve 28 for introducing adhesive between the display part and cover part or their sleeves. The nozzle 36 is directed towards the opening 27 described above.

The devices mentioned for removing and erecting the flat folded cover and display parts or their sleeves include reciprocable, here up and down movable (double arrows 37, 38) suction elements 39, 40 on the one hand and stationary erection elements in the form of erection rods 41, 42, on the other hand, by means of which the initially flat-folded parts are pulled or towed by means of the suction elements 39, 40 with appropriate erection (in FIG. 4 when the sleeves 29, 28 removed from the shafts 33, 34 move downward). The parts erected to form rectangular sleeves 28, 29 are supported on a rail assigned to the erecting elements 41, 42, here double rail 43. In the direction parallel to this rail, the slide 35 acting on the cover part or on the rectangular sleeve defining the cover part 29 is effective. The slide 35 has a rectangular slide plate 44 with an upright holding element 45 which plunges into the rectangular sleeve 29 defining the cover part. This erection-holding element 45 maintains or stabilizes the cross-sectional shape of the erected sleeve 29 when it is transferred to the display sleeve 28.

A conveyor device in the form of a conveyor chain 46 is assigned to the display part or its sleeve 28, which conveys the nested sleeves 28, 29 for the bottom folding of the sleeve 28 and filling both sleeves from the area of the shaft 34 assigned to the display part.

The display part or its sleeve is preceded by a sleeve transfer gate 47 through which the the rectangular sleeve 29 assigned to the cover part 18 can be pushed through by means of the slide 35 assigned to this sleeve and can be pushed into the rectangular sleeve 28 assigned to the display part 10. In this regard, reference is made to arrow 30 in FIGS. 1, 2 and 4.

5 and 6 has two laterally hinged wing doors 49, 50 and a flap 48 hinged at the lower edge which, when the sleeve 29 is transferred into the sleeve 28 through the sleeve 29 from a closed position according to FIG 6 can be folded out into the rectangular sleeve 28 assigned to the display part, as is indicated in FIG. The folding doors 49, 50 and flap 48 are folded into the rectangular sleeve 28 with the base folding flaps 13-16 arranged on the sleeve 28 being slightly spread outward, forming an insertion funnel for the sleeve 29.

The wing doors 49, 50 and the flap 48 can be moved against the action of a torsion spring, not shown, from the closed position according to FIG. 5 or FIG. 6 into a sleeve transfer position according to FIG. 4. The articulation of the wing doors 49, 50 and flap 48 on the rectangular The frame of the sleeve transfer gate 47 is made via hinge joints 51, 52, 53.

The upper edges 54, 55 of the two laterally hinged wing doors 49, 50 are inclined downwards in the direction from the outside inwards, the outer regions of both upper edges near the articulation being at a somewhat higher level than the articulation of the associated upper floor tab 15 on the Rectangular sleeve 28 assigned to display part 10, so that this bottom tab 15 is folded upwards slightly when the sleeve transfer gate 47 is open, through the upper edges 54, 55 of the two hinged doors 49, 50. This also ensures that the upper floor tab 15 in FIG. 4 is assigned to the display part 10 Rectangular sleeve 28 is part of the insertion funnel for the rectangular sleeve 29 assigned to the cover part 18. Cover part and display part each consist of cardboard or cardboard. In principle, plastic materials are also conceivable. The display and / or cover part can also have windows which are closed by transparent plastic films in order to gain an insight into the interior of the packaging.

In principle, it is also conceivable to create display packaging of the type in question here which has an oval or approximately circular cross section, ie is not cuboid, as shown in FIG. 7.

The suction elements 39, 40 mentioned above are attached to the free, here upper end of a piston rod which is part of a hydraulic or pneumatic piston-cylinder unit. The same applies to the slide 35. The slide plate 44 together with the upright holding element 45 is also fastened there at the free end of a piston rod 57. The piston rod 57, which is also part of a hydraulic or pneumatic piston-cylinder unit, can be moved back and forth in the direction of the double arrow 56 in FIG. 4.

The conveyor chain 46 with corresponding drivers runs around a sprocket 58 which is operatively connected to a spline shaft 59. The spline shaft 59 is driven in rotation via a pinion 60 and a drive chain 61 which interacts with it. The drive chain 61 is mechanically connected to a drive motor, not shown, in particular an electrical stepper motor.

All features disclosed in the application documents are claimed as essential to the invention, insofar as they are new compared to the prior art, individually or in combination.

Reference list

10th

Display part

11

Longitudinal wall

12th

Side wall

13

Folding rag

14

Folding rag

15

Folding rag

16

Folding rag

17th

Bottom of the display part

18th

hood-like cover part

19th

Longitudinal wall

20th

Side wall

21

Folding rag

22

Folding rag

23

Cover wall of the cover part

24th

Tear-off tab

25th

Goods, e.g. chocolate bars

26

Breaking line

27

Adhesive opening

28

Rectangular sleeve (display part)

29

Rectangular sleeve (cover part)

30th

arrow

31

arrow

32

Adhesive tape

33

first shaft

34

second shaft

35

Slider

36

Glue nozzle

37

Double arrow

38

Double arrow

39

Suction elements

40

Suction elements

41

Raising bar

42

Raising bar

43

(Double) rail

44

Slide plate

45

Upright holding element

46

Conveyor chain with drivers

47

Sleeve transfer gate

48

flap

49

Double door

50

Double door

51

Hinge joint

52

Hinge joint

53

Hinge joint

54

Top edge

55

Top edge

56

Double arrow

57

Piston rod

58

Sprocket

59

Spline

60

pinion

61

Drive chain

Claims (12)

Method for producing a display packaging comprising a tray-like display part (10) with longitudinal and side walls (11, 12) and a base (17) formed by folding tabs (13, 14, 15, 16) arranged on the longitudinal and side walls and from a hood-like cover part (18) with longitudinal and side walls (19, 20) and a cover wall (23) formed by folding flaps (21, 22) arranged on the longitudinal and side walls, the cover part (18) on the bottom inside the display part (10) placed and releasably connected to it by means of adhesive points (32) arranged in the area of tear-off tabs (24),
characterized in that
The display and cover part are provided folded flat so that the parts provided in this way are erected with the formation of sleeves, in particular rectangular sleeves (28, 29) (FIG. 1), and these sleeves with their bottom or cover flaps (13-16; 21, 22) facing each other (Fig. 2) until the bottom edge of the cover part (18) or the associated (rectangular) sleeve (29) at the level of the bottom (17) of the display part (10) or at the height the articulation of the folding tabs (13 - 16) on the longitudinal and side walls of the (rectangular) sleeve (28) assigned to the display part (10), shortly before reaching this final relative position between the cover part (18) or its sleeve (29) and display part (10) or its sleeve (28) through an opening formed on at least one side and / or longitudinal wall (12, 11) of the display part (10) or its sleeve (28) through an adhesive between the display part and cover part or their (rectangular) sleeves (28, 29) is introduced (Fig. 2), and that then on the longitudinal and side walls (11, 12) of the display part (10) or its (rectangular) sleeve (28) arranged folding tabs (13 - 16) to form the Bottom (17) are folded into the floor level (Fig. 3). Method according to claim 1,
characterized,
that for collision-free insertion of the (rectangular) sleeves (28, 29) the folding tabs (13 - 16) arranged on the longitudinal and side walls (11, 12) of the display part (10) or its (rectangular) sleeve (28) slightly folded outwards or spread out to form a kind of insertion funnel. Device for producing a display packaging according to the preamble of claim 1,
marked by - A first shaft (33) for receiving and providing flat folded cover parts (18), - a second shaft (34) for receiving and providing flat folded display parts (10), - Devices (39, 40; 41, 42) assigned to the first and second manholes for removing the flat folded parts from the manholes (33, 34) and for erecting said parts with the formation of their folding tabs (13-16; 21, 22) sleeves facing each other, in particular rectangular sleeves (28, 29), - One of the cover part (18) and / or display part (10) or their (rectangular) sleeves (28, 29) associated slide (35) for inserting the (rectangular) sleeves until the bottom or the slide (35) facing edge of the cover (18) defining (rectangular) sleeve (29) at the level of the bottom (17) of the display part (10) or at the level of the articulation of the folding tabs (13 - 16) on the longitudinal and Side walls (11, 12) of the (rectangular) sleeve (28) assigned to the display part (10), and - A nozzle (36) assigned to the display part (10) or its (rectangular) sleeve (28) for introducing adhesive between the display part and cover part or its (rectangular) sleeves (28, 29), in particular one onto an opening (27) in a side and / or longitudinal wall (11, 12) of the display part (10) or its (rectangular) sleeve (28) directed adhesive nozzle. Device according to claim 3,
characterized,
that the means for removing and erecting the flat folded cover and display parts reciprocable suction elements (39, 40) on the one hand and stationary erection elements in the form of erection rails, rods (41, 42) or the like First of all parts folded flat are pulled or towed by means of the suction elements (39, 40) with appropriate erection. Device according to claim 3 or 4,
characterized,
that the support of the (rectangular) sleeves (28, 29) upright parts of the packaging is carried out on a rail (43) assigned to the erecting elements (41, 42), the direction on the cover part (18) or on its (rectangular) sleeve (29) engaging slide (35) is effective (double arrow 56). Device according to one of claims 3 to 5,
characterized,
that the slide (35) has a rectangular slide plate (44) with an upright holding element (45) which plunges into the (rectangular) sleeve (29) assigned to the cover part (18). Device according to one of claims 3 to 5,
characterized,
that the display part (10) or the associated (rectangular) sleeve (28) is assigned a conveyor, in particular conveyor chain (46), which the nested (rectangular) sleeves (28, 29) of cover and display part for bottom folding and Fills from the area of the shaft (34) assigned to the display part (10). Device according to one of claims 3 to 7,
characterized,
that the (rectangular) sleeve (28) associated with the display part (10) is preceded by a sleeve transfer gate (47) through which the (rectangular) sleeve (29) assigned to the cover part (18) by means of the slide (35) assigned to it can be pushed through and into the (rectangular) sleeve (28) assigned to the display part (10). Device according to claim 8,
characterized,
that the sleeve transfer gate (47) has two laterally hinged wing doors (49, 50) and a flap (48) hinged on the lower edge, which during the sleeve transfer process by the cover part (18) assigned (rectangular) sleeve (29) out of a closed position can be folded into the (rectangular) sleeve (28) assigned to the display part, with a slight insertion funnel-like expansion of the folding flaps (13-16) arranged on this sleeve. Device according to claim 9,
characterized,
that the hinged doors (47) hinged gates (49, 50) and flap (48) can be moved out of the closed position against the action of a torsion spring or the like. Device according to claim 9 or 10,
characterized,
that the upper edges (54, 55) of the two laterally hinged wing doors (49, 50) are inclined downwards in the direction from the outside inwards, the outer regions of both upper edges near the articulation being at a somewhat higher level than the articulation of the associated upper one Folding flap (15) on the (rectangular) sleeve (28) belonging to the display part (10), so that this folding flap (15) with the sleeve transfer gate (47) open through the upper edges (54, 55) of the two wing doors (49, 50) is slightly folded outwards or upwards. Display packaging according to the preamble of claim 1,
characterized in that
The display and cover part (10, 18) are each made from an approximately rectangular blank made of cardboard or the like with rectangular floor or cover flaps, and that an adhesive opening (27) is provided on at least one longitudinal or side wall (11, 12). of the display part (10) in the area of a tear-off tab (24) prepared there, in particular in the area of a dividing line of the tear-off tab (24) extending approximately parallel to the bottom (17) of the display part (10).

Images