EP1050498B1 - Method and device for separating and supplying box blanks - Google Patents

Description

The invention relates to a method for separating and Erection of folding carton blanks stored in a magazine in the stack approximately perpendicular to its main extension plane against on parallel side edges of the respective foremost folding carton blank attacking first and second stops down nachgefördert, with the respective foremost folding carton blank first in the main plane of extension of the first Transversely promoted in the direction of the second stop is released so that he from the first stop and across the Stack offset in one provided in the area of the second stop Free space dives and is released so what the foremost folding carton blank from the released Position removed from the area of the stops on the magazine and the subsequent folding carton blanks from the attacks are held back. It will also be a device for performing the method, with an in first and second stops ending magazine in which the Faltschachtelzuschnitte in the stack approximately perpendicular to its main extension plane against the attacks, with a provided in the end of the magazine cross conveyor for the foremost folding carton blank, with one in the area of the second stop formed free space for temporary immersion of the cross-conveyed foremost carton blank, which in Transverse conveying direction is dimensioned so that the transversely conveyed Faltschachtelzuschnitt in its transverse promotion of the first Stop is released, and with a facility for the acceptance of the respectively foremost folding carton blank in the area of Attacks. The invention can be connected in particular with folding carton blanks used to feed a Be separated and erected cartoner. there Folding carton blanks are usually glued in and flat folded state delivered to the user, stacked on a tape or stacked in one Magazine or inserted in front of the magazine conveyor line. The magazine often ends in a downward direction Part whose end area is provided with at least two stops is that attack on parallel sides of the carton blank and the carton blanks in the stack against gravity and / or conveying pressure and failing or prevent it from falling out of the magazine.

A method and an apparatus of the type described above Art are known from DE 29 23 909 A1. In the method for Separation and erection of folding carton blanks these in a magazine in the stack approximately perpendicular to their main extension plane against at parallel side edges of each Foremost folding box cutting attacking first and second Supports inclined fed downwards. The attacks are on Magazine arranged stationary. The first stop that the Holding the leading edge of the respectively foremost folding carton blank, a slider is assigned to the leading edge of each the first carton blank and each first Faltschachtelzuschnitt first in the main extension plane from the first stop towards the transversely conveyed second stop, so that he is out of the field of pushed out first stop and offset transversely to the stack in one in the region of the second, fixed to the magazine arranged Submerged space provided free space. Both the Slider and the free space are dimensioned so that in each case only a single Faltschachtelzuschnitt released becomes. The cross-promoted folding carton blank is on the one hand in the area between the second stop and the free space held and on the other hand supported on the slider, so that he is parallel to the main plane of extension with his main plane of extension Main extension plane of folding carton blanks in pile and otherwise kept straight or just held on both sides. Of the each foremost folding carton blank from the released straight position in the area of the stops on the magazine by a separate institution accepted. The following folding carton blanks are held back by the stops on the magazine. There will also be a corresponding device for Implementation of the method shown in which the slide as Cross conveyor is assigned to the stationary first stop.

From the post-published DE 199 18 476 A1 is a device and a method for separating flat objects, in particular folding box blanks, known. The flat Objects are doing in a magazine in a horizontal or vertically aligned stack and against two Supports encouraged. It all depends on the separation also from a horizontal stack of folding carton blanks to enable, where the folding box blanks so with their main extension levels vertical aligned next to each other. The procedure and the Device do not aim at the erection of carton blanks but deal only with their Singulation. In the area of the attacks, the respective foremost Faltschachtelzuschnitt first in the main extension plane from the one stop in the direction of the second Transversely promoted stop, with this second stop component a means for losing weight, which is the one in each case Abends stop on a driver. When transversely conveying of the foremost carton blank enters this in the Slot the device and comes from the first stop free. Thus, the Faltschachtelzuschnitt for the purpose of Further transport from the magazine into the driver device unilaterally released. In this release position can Gravity is reduced to the shape of the front carton blank not affect this if a horizontal Stack is taken. But even when singling out a vertical stack does not affect the gravity Sense. The released position is not reached on the magazine, but at the beginning of the transfer of the front Faltschachtelzuschnitts in the direction of the driver device. The so transversely conveyed folding carton blank is thus not one-sided in the area between the second stop and the free space at Magazine held, but on the contrary moved away from the magazine. Out of a horizontal stack becomes the foremost one Faltschachtelzuschnitt not converted into a bent state, but merely handed over to the entrainment device, the carton blank is neither opened nor broken, is still erected. The device used owns in the area of the facility for the decrease of each front carton blank the second stop with the provided space for temporary immersion of the transversely conveyed foremost folding carton blank. Next to the first stop is a separate cross conveyor provided and driven like a hub. The second stop serves not keeping the foremost cut-out carton blank on the magazine, but the promotion of the same to the entrainment device.

From a brochure of the company Uhlmann Pac-Systeme GmbH & Co. KG, Laupheim with the printing reference 1995 d 700 or from a Brochure "CUK / CTK" of the Robert Bosch GmbH with the print reference VM / VEK 1, 10.92 is a device for singulation and Supply of folding carton blanks in connection with known to a cartoner. The flat folded Faltschachtelzuschnitte receiving magazine ends in one Downward range, which in turn in first and second stops ends. For better guidance and retention of Folding carton blanks are two first and two second Stops formed on the two outer side edges attack the flat folded carton blanks. The Attacks are to a certain extent and are on their set up mutual distance, so that due to Delivery pressure and / or gravity against the attacks pending Pile of stops being held. The folding carton blanks be in the stack at least approximately perpendicular to her Main extension plane against the attacks nachgefördert. It is a device for removing the respective foremost folding carton blank provided in the field of attacks, consisting of a consists of arm occupied rotor. At the free ends of the arms suction cups are arranged, which are subjected to negative pressure. The suckers grip on one of the two side walls of the foremost one in the magazine held by the attacks folding box blank and pull this more or less in Nachförderrichtung from the attacks. The following folding carton blanks are then held back by the stops in the magazine. The folding carton cut seized by the suckers is opened, usually also broken and then for example clocked in erected state in a transport chain, so that the erected carton with the too can be filled in packaging objects.

The reliability of such known separation devices is limited. The operational safety is of many Factors and disturbances dependent. It affects, for example different tolerances of the produced folding box blanks out. Also the rigidity and the quality the box from which the carton blanks are made, affect the processability. But also the humidity during singulation and / or the previous storage Folding carton blanks can improve the operational safety of Affect device for separating. There are still many other factors that are known to those skilled in the art. you has already tried to adjust the stops against each other too to make the different in this way Conditions. The mutual attitude of the Attacks must be very sensitive, so on the one hand not several folding carton blanks through the end of the magazine slip through and on the other hand reliably the foremost one Faltschachtelzuschnitt alone can be removed. If then changes occur during the operating time exists the risk that the device is not working properly and a readjustment of the attacks is required. Even the Intensity with which the fold lines at the carton blank are realized, can interfere with the singulation impact.

The devices described in the above-mentioned brochures for separating and providing folding box blanks are preceded by a carton erector. The carton erector has a rotor armed with arms. At the ends the arms are sitting sucker. The rotor or arm is in a cycloid moving, which - apart from the end point of the movement - always a perpendicular to the main extension plane of the carton blanks directed in the stack movement component and a in the direction of the main extension plane of the folding carton blanks directed component. This latter component of movement disturbs the removal process of each foremost Faltschachtelzuschnitts from the magazine.

The invention is based on the object, a method and a Device of the type described above show that a enable increased reliability and in which a reduced susceptibility to a variety of impairments and factors.

This is according to the invention in a method of the beginning described manner achieved by the so transversely promoted Faltschachtelzuschnitt one-sided in the area between the second Stop and the free space held on the magazine and by gravity and / or delivery pressure in a bent state transferred and removed from the bent state and thereby opened, broken and erected.

The invention is based on the idea, first of all the Foremost folding carton blank each to a relatively small Cross way and then unilaterally release and only on the other side to keep the magazine while the subsequent Folding carton blanks continue from the two attacks being held. This slight offset when immersing of the respective foremost folding carton blank in the the free space provided has the advantage that the foremost folding carton blank only remains anchored on one side of the magazine and thus also in the Removal only unilaterally released from the second stop on the magazine must become. In this release-acceptance process eliminates the Necessity, a shortening between the two parallel Side edges of the closed carton blank to to reach. It is rather advantageous, the one-sided Also held by cross-folded carton blank Beginning with a movement component that decrease Beginning of the movement in the main extension plane of the front Faltschachtelzuschnitts is. This is this separation device particularly suitable, in conjunction with cartoners to be used, which has a rotating take-off device Own rotary arm and suckers.

The transversely conveyed and only one side in the area between Free space and second stop on the magazine held foremost Faltschachtelzuschnitt is by gravity and / or Conveying pressure converted into a bent state and from the curved state with completely free front edge removed and open, broken and erect.

The new method has a number of advantages. By the Decrease of the foremost carton blank in the one-sided only still held position becomes a sensitive attitude the first stop relative to the second stop dispensable. The distance between these two attacks occurs only in so far as this distance is set small enough must be, so that the subsequent folding carton blanks be withheld safely. In a necessary becoming Format change results in comparatively short changeover times. The walls of the magazine on the one hand and the stops do not have to be set separately from each other or each other. Above all, however, results in a much reduced Sensitivity to change of the contact pressure of adjacent folding carton blanks in the magazine. The associated Nachförderung can be performed easily. On usual sensor is discontinued. Bigger changes in the Contact pressure can be easily absorbed. The Finally, the process can also be easily used for folding carton blanks apply with square cross section. If Tolerances in the dimensions of the carton blanks occur, as is not entirely true for different batches is to be avoided, this requires no readjustment or readjustment the attacks.

It makes sense, if the foremost one-sided on the Magazine held folding carton blank when taking off the bent state with one of its transverse promotion opposite Movement component is removed rotationally. Lots Known acceptance devices operate such that at the beginning the movement only one component of motion perpendicular to the Main extension direction of the front carton blank is present, and in the course of the movement then increasingly one transverse movement component added. On such acceptance devices the present method is not limited. On the contrary, very simple rotors can be used to remove the respective foremost folding carton blank and provide. Even at the beginning of this movement may well a movement component may be provided to the one-sided folded carton blank as it were from its free space pull it out.

For the realization of the cross-promotion of the foremost one-sided held carton blank will be apparent to those skilled various possibilities. One possibility becomes the Transverse conveying of the front one-sided folded carton blank the first stop in the main extension plane of the front carton blank stroke reciprocated. Another possibility is to cross-subsidize Activation of pneumatically actuated piston / cylinder units perform. A third possibility is rotating pressure brushes briefly on the free surface of the front carton blank to attack in this way the friction between the foremost Faltschachtelzuschnitt and the subsequent Faltschachtelzuschnitt to overcome and the slight cross promotion bring about.

The device of the type described above is characterized according to the invention in that the first stop at the same time as Cross conveyor is formed and driven like a hub, and that the second stop and the free space to the one-sided Holding the cross-fed frontmost carton blank at Magazine in a gravitational and / or delivery pressure bent state are formed.

Essential is a trained at the same time as a cross conveyor first stop, the only on the front Faltschachtelzuschnitt attacks or only on this Faltschachtelzuschnitt effect. The path around which the foremost folding carton blank is only a fraction of the Distance between the two stops. The cross conveyor can also be kept small. It is enough, such a cross conveyor to choose for the foremost folding carton blank on the one hand is released and so only one-sided is still held, while conversely, the pushed-out stop still flawless can fulfill its function, namely the following Folding carton blanks to keep in the magazine. By the free of the foremost cross-cut folding carton blank from this one stop this carton blank is released one-sided something from the following folding box blanks. The foremost folding carton blank is turned into a slightly curved one Condition convicted for erecting the carton blank is particularly useful. In particular, will to make sure that the two of the sucker's diminishing Device averted side walls of the carton blank can be properly erected to the outside. The same applies to the force attack with respect to the nipple on the two other side surfaces.

The new device makes the delicate adjustment of the Stops against each other superfluous. Also a readjustment is no longer necessary. Manufacturing tolerances different batches can easily without changing the Setting to be processed. This results in the possibility the setting conditions for each format store and reproducibly drive again. Thus result short changeover times with format change and a total reduced susceptibility to interference, in particular Change of the contact pressure of the Nachfördereinrichtung and / or of acting gravity.

As a cross conveyor for the foremost folding carton blank can provided on the first stop acting lifting drive his. Such a linear actuator, which turns into a reciprocating Is movement for the first stop is very simple. He can for example from a Eccentric or cam drive derived. The required Hub is comparatively small and only a few millimeters. Such a linear actuator allows large separation speeds to.

It makes sense, the Hubartig driven first stop a step for engaging only the frontmost carton blank on. This level is in addition to the first stop intended. Their effect extends to another level as the stop. The training of the stage at the stop allows the step always together with the stop is moved, so that the front Faltschachtelzuschnitt only then released from the attack when the cross promotion ends and the foremost folding carton blank in the clearance occurred. Only at the return stroke of the stop is the Foremost folding carton blank on the side of the first Released and only one-sided on the side of the stop second stop superimposed.

It is advantageous if the step on the first stop for engaging behind undercut only the front carton blank is trained. By such an undercut it is ensured that the foremost folding carton blank and only this is recorded and promoted. The undercut Level engages the free side edge of the folded front carton blank. The one in the pile prevailing contact pressure is exploited to the foremost Folding carton cutting safely and reliably can do what is important for high working speeds.

In addition, the mutual distance between the first and be formed adjustable to the second stop. This adjustability is intended for a format change. simultaneously Thus, the mutual distance between the first and the second stops. On a fine adjustment of these attacks against each other and a readjustment can be waived. It makes sense, however, if the first and the second stop on the thickness of the carton blank are formed adjustable. An adjustability in this Direction is not required in many cases, though for the production of folding carton blank cartons with usual Gram weights are processed, as in particular for the Packaging of drug blister packs is known. If, however, very different carton thickness with and the same separating device to be handled is this setting makes sense.

In all cases, the depth of the free space in the transverse conveying direction equal to or greater than the stroke of the first stop educated.

Fig. 1

eine schematisierte Seitenansicht der wesentlichen Elemente der Vorrichtung zur Vereinzelung und Bereitstellung von Faltschachtelzuschnitten in der Ausgangsstellung,

Fig. 2

eine Seitenansicht ähnlich Fig. 1, jedoch nach einer Querförderung des vordersten Faltschachtelzuschnitts,

Fig. 3

eine ähnliche Ansicht wie die Fig. 1 und 2, jedoch nach der einseitigen Freigabe des vordersten querverschobenen Faltschachtelzuschnitts,

Fig. 4

eine schematisierte Stirnansicht der Elemente gemäß Fig. 1 und

Fig. 5

eine mehr konstruktive Verdeutlichung der für die Erfindung wesentlichen Elemente.

The invention will be further explained and described with reference to preferred embodiments. Show it:

Fig. 1

a schematic side view of the essential elements of the device for separating and providing Faltschachtelzuschnitten in the starting position,

Fig. 2

1 is a side view similar to FIG. 1, but after a transverse conveyance of the foremost folding box blank,

Fig. 3

1 and 2, but after the unilateral release of the foremost cross-folded folding box blank,

Fig. 4

a schematic front view of the elements of FIG. 1 and

Fig. 5

a more constructive clarification of the essential elements of the invention.

In Fig. 1, a magazine 1 is arranged with its inclined downwards End region 2 shown schematically. The magazine 1 has side walls 3 and 4 consisting of guide rails, Guide angles o. The like. May exist. Between the side walls 3 and 4 will be a stack of folding carton blanks added. Between the carton blanks is between a respective foremost folding carton blank 5 and subsequent Faltschachtelzuschnitten 6 differentiated. The folding carton blanks 5 and 6 lie with their main extension planes 7 in the stack flat against each other. It's just here a few folding carton blanks 5 and 6 are shown, while in reality usually a larger number of Faltschachtelzuschnitten one behind the other in the stack. In particular, the formed by the side walls 3 and 4 Feed line for the magazine 1 also formed correspondingly long and possibly from a comparatively longer horizontal section in a slightly downward go over inclined end portion 2. At the carton blanks 5 and 6 are cardboard boxes with corresponding ones Side walls, which are usually rectangular parallelogram flat-folded state, in which two side walls of the folding box blanks 5 and 6 touching each other. It is understood that such a folding box blank, as shown in Fig. 4 in double dash-dotted lines Line is shown, with corresponding side wall flaps and Bottom flaps 8 is provided, with the help of the folding box blank 5, 6 closed at both ends after its erection will, after previously the appropriate product in the erected Faltschachtelzuschnitt 5, 6 has been inserted. The flat folded carton blanks 5, 6, as used by the cartonboard manufacturer are delivered to the user, are in closed, so folded-flat state, wherein the extension of the Faltschachtelzuschnitte 5, 6 in the Drawing plane of Fig. 1 by the distance between two parallel Side edges 9 and 10 is determined.

The stack of Faltschachtelzuschnitte 5, 6 in the magazine 1 is from a first stop 11 and a second stop 12 held at the two parallel side edges 9 and 10th each attack. The stops 11 and 12 jump in the Conveying cross-section of the magazine 1 relative to the side walls 3 and 4 something before and thus narrow the conveyor section in Conveying direction according to arrow 13, with the carton blanks 5 and 6 in the magazine against the stops 11 and 12th to be moved. On the stops 11 and 12 exercises the stack of Folding carton blanks 5 and 6 either due to gravity and / or additionally by a Nachfördereinrichtung a corresponding contact pressure or contact forces out.

The first stop 11 is assigned a step 14. The stage 14 is in its height so in the direction of arrow 13 on the Thickness of a flat folded carton blank 5, 6 matched, so that with the stage 14 only the foremost Faltschachtelzuschnitt can be taken. The first stop 11 and the step 14 can on a common stop carrier 15 be realized, according to arrow 16 (Fig. 2) and arrow 17 (Fig. 3) relative or together with the side wall 3 or a range thereof is driven reciprocally. Of the second stop 12 may be stationary and therefore immovable to the Side wall 4 may be provided. In his area is in transverse conveying direction formed according to arrow 16, a free space 18, the so is formed, that the foremost Faltschachtelzuschnitt 5 in can immerse this space 18 in its cross promotion, while the following Faltschachtelzuschnitte 6 of the Sidewall 4 are held stationary. In this way and Way, it is possible by transverse movement of the stop carrier 15th with the stop 11 and the step 14, the foremost Faltschachtelzuschnitt 5 relative to the subsequent Faltschachtelzuschnitten 6 to move laterally, so transversely. Fig. 2 shows one end of the stroke-driven stop carrier 15 after completion of the cross promotion. It is obvious how the foremost Faltschachtelzuschnitt 5 still from both attacks 11 and 12 is held, although he is already to the pile of subsequent folding box blanks 6 laterally to a certain extent Offset measure is shifted. The free space 18 in the transverse conveying direction according to arrow 16 is at least equal to the forward stroke the stop carrier 15 with the first stop 11 and the stage 14 trained.

During the transverse conveying according to arrow 16 (Fig. 2), the foremost Faltschachtelzuschnitt 5 the friction on the main extension plane 7 to the subsequent folding box blank 6 overcome. But as soon as the stop carrier 15 accordingly his return stroke is moved according to arrow 17, holds the contact pressure the subsequent Faltschachtelzuschnitte 6 and the friction to the main extension plane 7 of the front carton blank fix it in place. Here comes the foremost folding carton blank 5 in a position as shown in FIG Fig. 3 is shown. The foremost folding carton blank 5 is only one-sided by the stop 12 and the free space 18 held while his other side edge 9 protrudes freely. Fig. 3 also illustrates that the foremost Faltschachtelzuschnitt 5, starting from its one-sided restraint in the Area of the second stop 12 slightly bends. This Bend is for the subsequent erection of the carton blank 5 makes sense by having its two side walls, the the subsequent Faltschachtelzuschnitt 6 are facing to the corresponding fold line is opened with the correct tendency become. It can also be seen from Fig. 3 that in this position the stack of subsequent Faltschachtelzuschnitten 6 slightly tilted or tilted. However, this movement is without adverse consequences.

To the cross conveyor according to arrow 16 for the front Faltschachtelzuschnitt 5, a transverse conveyor 19 (FIG. 5) is provided, which may consist of a lifting drive 20 in the essentially on a cam or eccentric 21 is constructed. But also other cross conveyor 19 or drives are for the Professional conceivable without further notice.

Fig. 3 further shows a device in a highly schematic manner 22 for removal of the respective foremost folding carton blank 5, as soon as this one-sided on the second Stop 12 is held clamped. In general, the Device 22 a rotor with arms on, at the end of one or a plurality of suction cups 23 are arranged, which acts on negative pressure become. The arms or the sucker 23 can in a Movement path 24 to be moved, which is in two-dot chain Line and according to the arrows indicated in Fig. 3 illustrates is. This trajectory 24 ends at a turning point at the clear surface of foremost folding carton blank 5. In this reversal points, the movement path 24 and thus the Sucker 23 only a component of motion perpendicular to the Main extension plane 7 of the front carton blank 5 is directed. Apart from this endpoint, like the Trajectory 24 illustrates motion components provided, which act in the main plane of extension 7. The sucker 23 could also arranged on a single arm or directly on a rotor be such that a corresponding other trajectory 24th could be given at the time of acceptance of the Foremost folding blank a noteworthy or exclusive Movement component in the direction of the arrow 17 having. In detail, the arrangement is then made so that the foremost Faltschachtelzuschnitt 5 as it were from the free space 18 is pulled out, with the movement slightly must run obliquely and so that the free side edge 9 of the foremost folding carton blank 5 also on the first stop 11 can be moved past. On such a rotor of the device 22 is then the respective foremost Faltschachtelzuschnitt 5 recorded, opened, broken and, for example inserted in a conveyor chain clocked, where then the folding carton blank 5 in open and erected Condition is provided to receive the corresponding good.

Once the foremost Faltschachtelzuschnitt 5 from the in Fig. 3 shown unilaterally clamped position has been removed is, in turn, relocates the subsequent stack of folding carton blanks 6, again with a front Faltschachtelzuschnitt 5 arises, the two attacks 11 and 12 is held reliably. It is understood that the mutual Distance 25 of the stops 11 and 12 smaller than the Distance between the two side edges 9 and 10 of the folding box blanks 5, 6 is measured. Also can usefully the second stop 12, as shown, comparatively further in the free cross section of the magazine 1 between the side walls 3 and 4 protrude than the first stop 11. It is still on it indicated that usually at least two first stops 11th on one side and two second stops 12 on the opposite side of the magazine are provided to the Folding carton blanks 5, 6 aligned to support and against Twisting to secure. A possible embodiment of the attacks FIGS. 11 and 12 show FIG. 4. At the same time, FIG. 4 also illustrates this Appearance of a flat folded carton blank 5, 6 with its bottom flaps 8. stop strips 26 can be on or expediently be provided on both sides, in operative connection to the longer bottom flaps 8 occur and when pulling or Removing the respective foremost folding carton blank 5 im Stack make sure the bottom flaps 8 are additionally supported in addition to the attacks 11 and 12. The front Faltschachtelzuschnitt 5 is thus almost in held a four-point deposit. Absolutely necessary these stop strips 26 but not.

Fig. 5 shows a more constructive design of the front end portion 2 of the magazine 1. The side wall 3 is according to double arrow 27 adjustable arranged around the cross section of the magazine 1 and thus also the relative position of the first stop 11, for example to be able to adjust at a format change. In Likewise, the side wall 4 according to double arrow 28th separately adjustable and adjustable, whereby at the same time the second Stops 12 are set. In interaction with the separate adjustment of the side walls 3 and 4 then arises also a setting of the distance 25 between the two stops 11 and 12. The stopper 11 may be integral with the Stop carrier 15 may be formed. The stop carrier 15 can be carried by a rocker 29, which is a pivot bearing 30 is tiltably suspended and with the eccentric 21 of the linear actuator 20 is in operative connection. A return spring 31 provides for maintaining the contact between the rocker 29 and the eccentric 21 and thus determines the return stroke according to arrow 17 (Figure 3). Alternatively to the eccentric 21 having lifting drive can also be a pneumatically actuated piston / cylinder unit 32 be provided and thus an essential part of the cross conveyor 19 form. For the expert There are also other execution options. The pneumatic acted piston / cylinder unit 32 may alternatively also in Combination to the eccentric 21 having lifting drive 20th as a locking device for the shutdown of the lifting drive 20 are used. It thus serves to switch on and off the lifting drive 20th

Fig. 5 further illustrates that the stage 14 of a separate plate 33 may be formed with one through her Centerline indicated adjustment screw 34 on the thickness of the flat folded carton blank 5, 6 is adjustable. The same applies to the second stop 12. This is realized here at an angle 35, which by means of a Fixing screw 36 and a slot guide, not shown according to double arrow 37 adjustable on the side wall. 4 is provided. Thus, the height of the free space 18 can and be set.

LIST OF REFERENCE NUMBERS

1 -

magazine

2 -

end

3 -

Side wall

4 -

Side wall

5 -

foremost folding carton.

6 -

subsequent folding box fur.

7 -

Main plane

8th -

bottom flap

9 -

side edge

10 -

side edge

11 -

first stop

12 -

second stop

13 -

arrow

14 -

step

15 -

stop support

16 -

arrow

17 -

arrow

18 -

free space

19 -

cross conveyor

20 -

Linear actuator

21 -

eccentric

22 -

Facility

23 -

Mammal

24 -

trajectory

25 -

distance

26 -

stop bar

27 -

double arrow

28 -

double arrow

29 -

wing

30 -

pivot bearing

31 -

Return spring

32 -

Piston / cylinder unit

33 -

plate

34 -

screw

35 -

elbow

36 -

fixing screw

37 -

double arrow

Claims (10)

1. Method of unmatching and making available folded cardboard boxes (5, 6), which being in a stack in a magazine (1) are downwardly conveyed in a direction substantially perpendicular to the plane of main extension (7) against first and second stops (11, 12) contacting two parallel side edges (9, 10) of the first folded cardboard box (5), the first folded cardboard box (5) each being transversely conveyed first in the direction of the plane of main extension (7) from the first stop (11) towards the second stop (12), so that the first folded cardboard box (5) comes free from contact to the first stop (11) and in a position transversely offset to the stack enters an opening (18) being located in the region of the second stop (12), than the first folded cardboard box (5) each being in the free position is conveyed away from the region of the two stops (11, 12) of the magazine (1), while the following folded cardboard boxes (6) are kept in position by the stops (11, 12), wherein the transversely conveyed folded cardboard box (5) is supported at one end in the region between the second stop (12) and the opening (18) of the magazine (1) and is bent in a direction away from the stack due to gravity and/or conveyance pressure and being in the bent position is taken off and opened, folded back and raised.
2. Method of claim 1, wherein the first folded cardboard box (5) being supported on one side at the magazine (1) during its taking off from the bent position is conveyed in a direction opposite to the transverse conveying direction.
3. Method of claim 1, wherein the first stop (11) is moved back and forth within the plane of main extension (7) to move the first folded cardboard box (5) supported on one side in the transverse direction.
4. Apparatus according the method of one of the claims 1 to 3, comprising a magazine (1) ending in first and second stops (11, 12), in which folded cardboard boxes (5, 6) are conveyed in a direction substantially perpendicular to the plane of main extension (7) against stops (11, 12), a transverse conveying device (19) being arranged in an end portion (2) of the magazine (1) to convey the first folded cardboard box (5) each, an opening (18) provided in a region of the second stop (12) to be entered temporarily by the first transversely conveyed folded cardboard box (5), the opening (18) being designed and measured in the direction of transverse conveyance so that the first transversely conveyed folded cardboard box (5) during the transverse conveyance comes free of contact to said first stop (11), and an apparatus (22) for the removal of the first folded cardboard box (5) each being arranged in the region of the stops (11, 12) to serve for raising the box, wherein the first stop (11) forming the transverse conveying device (19) also is moved back and forth, and the second stop (12) and the opening (18) are designed and arranged to support the first folded and transversely conveyed cardboard box (5) on one side of the magazine (1) in a state being bent due to gravity and/or conveyance pressure.
5. Apparatus of claim 4, wherein a lifting drive (20) acting on the first stop (11) is provided to transversely convey the first folded cardboard box (5) each.
6. Apparatus of claim 4 or 5, wherein the first stop (11) driven back and forth includes a step (14) to contact only the first folded cardboard box (5).
7. Apparatus of claim 6, wherein the step (14) of the first stop (11) includes an undercut to contact only the first folded cardboard box (5).
8. Apparatus of one of the claims 4 to 7, wherein the first stop (11) and the second stop (12) are each designed and arranged to be adjustable with respect to one another.
9. Apparatus of one of the claims 4 to 8, wherein the first stop (11) and the second stop (12) are each designed and arranged to be adjustable with respect to one another in response to the width of the folded cardboard boxes (5, 6).
10. Apparatus of one of the claims 4 to 9, wherein the depth of said opening (18) is greater than the stroke of the first stop (11).

Images