WO2018188833A1

WO2018188833A1 - Device and method for filling a box

Info

Publication number: WO2018188833A1
Application number: PCT/EP2018/053623
Authority: WO
Inventors: Manuel Bauer; Martin Faas; Christian VOCHEZER
Original assignee: Robert Bosch Gmbh
Priority date: 2017-04-12
Filing date: 2018-02-14
Publication date: 2018-10-18
Also published as: DE102017206273A1

Abstract

The present invention relates to a device and a method for filling a box (11), comprising at least one blank extractor (16) for extracting a blank (10), at least one device (16) for folding up the blank (10) into a box (11), at least one filling station (26) for filling the box (11) with products (34), at least one transport system (12), which transports the filled box (11) to at least one further workstation, in particular a folding station (44) and/or a glue applicator (50) and/or a tape station (60), wherein at least one further transport system (38) is provided for acting in particular in a stabilizing manner on the box (11).

Description

description

title

Apparatus and method for filling a carton prior art

The present invention relates to an apparatus and a method for filling a carton according to the preamble of the independent claims. A generic device is known from DE 3429761 A1. To the

Erecting the folding cartons is a pivoting and translationally moving gripper arm provided with suckers, which removes the front carton folding the magazine, transported to an anvil and then erects the folding carton with this together.

It is an object of the present invention to further increase the flexibility of the device. This object is solved by the features of the independent claims. Disclosure of the invention

The device according to the invention and the method according to the invention for filling a carton with the features of the independent claims, on the other hand, have the advantage that the flexibility of the arrangement is further increased. So now the box can be moved both continuously and clocked. For example, there are workstations in which the carton has to be moved in cycles, for example when filling, folding and applying hot glue. If, for example, the cardboard is not to be closed by hot glue but by the application of an adhesive tape, this is particularly suitable for a continuous movement along a so-called

TapeStation. This is inventively achieved in that in addition to the usual transport system another transport system, preferably a Upper runner, which acts from the top to stabilize the cardboard, is provided. As a result, the (lower) transport system only with sliding

Mitnehmer be equipped, which move the carton only from one side pushing forward in the transport direction. As a result, a further movement is possible when the further transport system moves the carton relative to the transport system with sliding carrier and no longer by an anticipatory driver of the transport system in his

Movement is restricted. Furthermore, the machine concept allows a large proportion of all components of the machine to be maintained regardless of the type of closure. In addition, the need to adjust format parts can be reduced. Furthermore, the concept is characterized by high modularity. The vertical integration is low. The components used are relatively simple. Particularly suitably, the further transport system comprises a holder and / or a folding means and / or a Ausschubeinheit. These can be brought into contact with the cardboard so that they stabilize in the unfolded state. Particularly preferably, at least one holder is to be arranged on the diagonally opposite side with respect to the sliding carrier of the transport system, so that the unfolded cardboard is securely held in the unfolded state. In the arrangement of a folding means on the further transport system whose movement can already be used for the execution of the folding process. In an expedient development, the further transport system comprises at least one further holder, which likewise acts on the cardboard or on at least one further cardboard during transport. The additional holder provides improved stabilization of the cardboard to be transported. Alternatively, the output power can be increased by using the further transport system to stabilize at least two cartons.

Further expedient developments emerge from further dependent claims and the description.

Short description of the drawing Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. In the drawing: Figure 1 is the device in side view and below in the

corresponding plan view of such components that are required for the unfolding of the blank and feeding the unfolded box to the filling station, Figure 2 shows the device in side view and below in the

corresponding top view in a state when the carton is in the filling station before filling,

Figure 3 shows the device with upper rotor in the side view and

below in the corresponding plan view, when the carton is being filled,

Figure 4 shows the device in side view and below in the

corresponding top view in a state when the upper rotor in befindlichem in the filling station box for

Positioned onward transport,

Figure 5 shows the device in side view and below in the

corresponding top view in a state when the carton is moved together with the upper rotor to a folding station,

Figure 6 shows the device in side view and below in the

corresponding top view in a state when the upper rotor on the cartons in the filling station and in the

Folding station positioned,

Figure 7 shows the device in side view and below in the

corresponding top view in a state when the cartons are located with the top rotor in the folding station and pressing station, wherein a glue application is provided, Figure 8 shows the device in side view and below in the corresponding plan view in a state when the head rotor is in contact with the cartons in the filling station and in the folding station, in another

Embodiment with a tapestry, as well

Figure 9 shows the device in side view and below in the

corresponding top view in a state when the carton has been completely closed and leaves the top runners the boxes.

Preferred embodiments of the invention

From a blank 10, a so-called cardboard tube is first created after unfolding. The carton 1 1 comprises on both sides of a lower and an upper outer flap 18 and two side flaps 20. In the following steps, first the rear side flaps 20 are folded inwards (one speaks of inner flaps). Subsequently, the carton 1 1 is laterally filled with products 36. After that, the front

Side tabs 20 folded. About the folded side flaps 20 are the

Outer tabs folded 18,19 and then closed, for example, by glue or adhesive tape.

For this purpose, a blank removal 16 removes a flat blank 10 from a magazine or a storage in which a large number of blanks 10 are arranged. The blank removal 16 or the blank erector has for this purpose two relatively movable arms 17 with suction pads. The foremost blank 10 is gripped by an arm 17, removed from the stack and also gripped by the other arm on the other side of the blank 10. By a coordinated movement of the two arms 17 of the flat blank 10 is folded into a cardboard tube as shown in Figure 1. During the erection process, the two arms 17 can be displaced simultaneously by a moving means 15 in the horizontal direction. As a means of movement 15, for example, a conveyor belt could be used, over which a carriage is moved, on which the two arms 17 are attached. The arms 17 first align the cardboard 1 1 in the horizontal direction so that it is located substantially at the same height as the first

Workstation, namely a filling station 26. This state is shown in FIG. The side flaps 20 (oriented vertically) and the lower and upper outer flaps 18, 19 (horizontally oriented) are in each case above the two tube ends.

As seen in Figure 1, the blank removal 16 and the leads

Blank erector over the carriage moved by the moving means 15 first the unfolded cardboard 1 1 past a hold-down 22 for the lower outer flap 18, so that the folded-down outer flap 18 below a guide means, such as a guide plate 24, comes to rest. This lower guide plate 24 prevents the lower

Outer flap 18 aligns upward again. In the embodiment, two hold-down 22 are provided, which are each arranged laterally of the conveyor belts of the transport system 12 so that they can safely act on the lower outer plates 18. The two guide plates 24 are each arranged laterally next to a transport system 12. The guide plates 24 are aligned relative to each other with the mutually adjacent side edges so that between exactly the bottom of the carton 1 1 comes to rest in the desired orientation. The guide plates 24 thus also do not protrude into the interior of the box 11. This allows the

Guide means 24 are executed purely stationary, so they must not be designed to be movable or hinged. The guide plates 24 are aligned substantially horizontally. Thus, they hinder neither the lateral loading of the carton 1 1 with products 34 nor the folding of the rear side flaps 20. Rather, the products 34 can be inserted over this guide plate 24. The blank removal 16 or the blank erector brings, as already described, the cardboard 11 into the desired position for the filling station 26, as shown in FIG. Only then, the transport system 12 is further clocked, so that the driver 14 comes into contact with the back of the box located in the filling station 26 1 1, see Figure 3. Previously, however, the transport system 12 remains in a position in which the driver 14 is not prevents the supply of the carton 1 1 to the filling station 26. The blank removal 16 is moved back against the transport direction 13 and is ready for the removal and erection of the next blank 10 ready.

As shown in the plan view according to FIG. 1, the transport system 12 comprises, for example, two parallel conveyor belts, on each of which synchronously running drivers 14 are arranged for the sliding transport of the carton 11. The transport system 12 is generally operated clocked to move the carton 1 1 between different processing stations, namely a filling station 26, a folding station 44 and optionally a pressing station 52 or other stations (for example, glue application 50, Tapestation 60) in the transport direction 13.

The front side flaps 20 reach into the detection range of a mouthpiece 28. The multi-part mouthpieces 28, for example, each fold the side flaps 20 forward a little apart and thereby align the carton 1 1 in the desired state in order to feed the products 34 on this page in to allow the inside of the box 1 1. The mouthpiece 28 comprises, for example, as shown in Figure 2, two sheets, which are oriented substantially transversely to the transport direction 13 and can be pivoted. The mouthpieces 28 are arranged only on the loading side, ie on the side from which the products 34 are fed to the carton 1 1.

In addition, an inner tab impact 30 for the rear (on the

Product supply side facing away) vorseilende side flap 20 is provided which closes this before filling. This is done via a translatory

Movement of the inner tab impact 30 against the transport direction 13 of the transport system 12 as indicated by an arrow. This is a

Moving means arranged on the frame of the device, which the

Inner tab weft 30 can move parallel to the transport direction 13.

On the same side (on the side facing away from the product supply) as the inner tab weft 30, a further inner tab weft 32 is provided, which closes the trailing rear side flap 20. This is done via a pivoting movement as indicated by an arrow. Thus, the side flaps 20 are wrapped on the side facing away from the product supply and form a back wall for the products 34 to be introduced. In addition, thereby the unfolded cardboard 1 1 is stabilized. Now the products can 34 by a Insert 36 are brought laterally into the interior of the carton 1 1 at the front. The transport system 12 remains at rest when filling.

While the carton 1 1 is being filled with products 34, another transport system, such as a top runner 38, moves opposite to

Transport direction 13 of the transport system 12 on the just filled box 1 1, Figure 3. The further transport system in the form of an upper rotor 38 is disposed above the transport system 12 and can be parallel and transversely (in the form of a raising or lowering in the direction of the carton 1 1 ) are moved to the transport direction 13 of the transport system 12. To the

Upper rotor 38 is at least one holder 42 or driver arranged. The holder 42 a can be positioned so that it cooperates with the front (leading), upper corner of the carton 1 1 to stabilize the carton 1 1. For this purpose, the top rotor 38 comprises an arm 41, which is oriented parallel to the top of the carton 1 1. At the far end (on the side facing the magazine

Side) of the arm 41 is optionally still another holder 42 b is provided, which can cooperate with the rear, upper corner of the carton 1 1. On the upper rotor 38, a Ausschubeinheit 58 is arranged, which will be described in more detail later. Furthermore, 41 further holders 43 are on the arm

(See, for example, Figure 8) arranged, which are the same as the holder 42 constructed and also stabilizing effect on a (further) carton 1 1 during transport. The further transport system 38 or the upper rotor 38 is in fact designed so that it supports or moves parallel at least two boxes 11. The holders 42, 43 protrude more or less vertically downwards.

Preferably, one of the holders 42 and 43 respectively fixedly arranged, and the further holder 42, 43 adjustably attached to the arm 41, to make an adaptation to different carton formats. In any case, the holders 42, 43 need not be made pivotable. Once the top rotor 38 has the arm 41 with the two (rear) holders 42 positioned directly over the box 1 1, the arm 41 lowers and brings at least one holder 42 a, in the embodiment both, in contact with the side surface of the carton 1 See Figure 4. In particular, by the interaction of the leading holder 42a at the top,

vorseilenden corner of the carton 1 1 with the sliding driver 14, which acts on the diagonally opposite bottom, trailing corner of the carton 1 1, a secure stabilization of the unfolded carton 1 1 can be achieved. This prevents that the cardboard 1 1 folds back during further transport. Further stability can be achieved via the further trailing holder 42b. The drawer 36 retracts back to the starting position. The

Mouth pieces 28 also move back to the starting position and no longer act on the front side flaps 20. After the top roller 38 has lowered, the side flaps 20 on the side on which the product 34 was fed are struck by an inner tab weft 40, see FIG. 4. For this purpose, the inner tab wefts 40 are pivoted as indicated by arrows. The inner tab impact 40 is preferably arranged as a possible folding means on the upper rotor 38 and the arm 41. The inner tab wraps 40 also remain in this position during the further transport of the upper runner 38, so that the side tabs 20 are held in the closed position.

The filled cardboard 1 1 is brought from the filling station 26 in the next station, namely in the folding station 44, see Figure 5. For this purpose, the transport system 12 and the upper rotor 38 are moved synchronously in the transport direction 13. Here, the top rotor 38 stabilized on the holder 42, the carton 1 1 in the erected position. The inner tab weft 30 moves synchronously with the closed carton 1 1 with. Also, the inner tab wraps 40 move synchronously while keeping the side flaps 20 closed.

If the carton 1 1 is in the folding position of the folding station 44, as shown in FIG. 5, the side tabs 20, which have already been folded in, are held by inner tab securing plates 46 arranged laterally by the transport system 12. This prevents that the inner plates or

Unfold side flaps 20 again. The inner tab locking plates 46 are arranged stationary and part of the folding station 44. In the folding position of the upper rotor 38, the carton 1 1 free. For this purpose, the inner tab impacts 40 are released. The upper rotor 38 raises the arm 41 with the holders 42 43 upwards and then moves against the transport direction 13 of the

Transport system 12 back to the filling station 26, where the next to be filled box 1 1 waiting (Figure 6). At the top runner 38 at least one further folding means is arranged in the front area, namely an outer flap folder 48, shown for the first time in FIG. The outer flap folder 48 is located on the arm 41, in FIG

Transport direction 13 of the transport system 12 seen in front of the holders 42. The outer strap folder 48 is so far from the holders 42 spaced that the

Holder 42 secure a box 1 1 in the filling station 26, while at the same time the upper outer flap 19 of the folding station 44 located in the box 1 1 can be pressed by the outer flap folder 48 down. As the arm 41 is lowered, the outer flap folder 48 folds the upper outer flaps 19 downward. The outer flap folder 48 extends over the entire width of the carton 1 1 and the upper outer flap 19. Der

Außenlaschenfalter 48 may be stationary connected to the arm 41, so must not be designed to be movable or pivotable relative to the arm 41.

When lowering the arm 41 also reach the first indicated in Figure 8 front holder 43 for stabilization to the outer sides of the folding station 44 located in the carton 1 1. The boxes 1 1 can now be closed in different ways, either by glue application (first embodiment according to FIG. 7) or by applying an adhesive tape (further exemplary embodiment according to FIGS. 8 and 9). The essential components such as the blank removal 16 and Aufrichteinheit, the transport system 12, the upper rotor 38, the filling station 26 and in substantial parts the folding station 44 can be used almost unchanged for both variants.

In the first embodiment (sealing by glue application), a glue application 50 is arranged between the folding station 44 and a pressing station 52. This includes in the embodiment of two glue nozzles, which are each arranged in front of the front and back of the carton 1 1. The cardboard 1 1 is continuously moved past the glue nozzles, while a

Glue job done. The glue nozzles apply the desired glue pattern to ensure a safe closing of the carton 1 1. For this purpose, glue is applied to the corresponding regions of the inner flaps or side flaps 20, onto which the outer flaps 18, 19 are then folded or be pressed so that the glue sets and a firm connection between the inner plates 20 and the outer plates 18,19 arises.

The transport from the folding station 44 to the pressing station 52 is effected by synchronous movements of the two transport systems 12, 38. Synchronously to

Transport system 12 thus moves the top rotor 38 with the carton 1 1 with. Again, the holders 42,43 stabilize on the moving boxes 1 1 a. In addition, the outer flap folder 48 remains in contact with the downwardly folded upper outer flaps 19. Depending on how the outer flap 19 is to be closed, the outer flap folder 19 may vary the outer flap 19 at a different angle to the front and back sides of the carton 1 1 fold. If, for example, a glue application, the upper outer flap 19 is folded only so far down that the glue application can still be performed safely, so the glue nozzle can protrude in the desired manner between the outer plate 19 and inner plates.

In the region of the pressing station 52 is at the bottom in each case a stationary

Außenlaschenfalter 54 is arranged, which is pivoted and acts on the respective lower outer plate 18. Also, the upper outer flap folder 48, which is disposed on the upper rotor 38, continues to act on the upper outer flap 19 a.

If the tabs 18, 19, 20 are folded, and the glue has been applied, is pressed by pressing units 56 of the pressing station 52 of the cardboard 1 1.

Here, the press units 56 move transversely to the transport direction 13 to the front and back of the closed carton 1 1 and presses the

Outer tabs 18,19 on the inner plates, so that the applied glue can set.

At the top rotor 38, the Ausschubeinheit 58 is arranged. The

Push-out unit 58 is preferably pivotally connected to the arm 41.

If, for example, the position of at least one holder 42 is changed, for example during a format change, then the ejection unit 58 is displaced together with the holder 42. The ejection unit 58 protrudes beyond the outer flap folder 48 and acts to push on the rear rear wall of a finished closed carton 1 1 a. The ejection unit 58 can be pivoted in the direction of auszuschiebenden cardboard 1 1 out. During the pushing out, the holders 42, 43 are engaged with the Cartons 1 1 in the region of the filling station 26 and the pressing station 52, see Figure 7. Alternatively, the Ausschubeinheit 58 could also be used to align the transported carton 1 1. This will be the end of the

Ausschubeinheit 58 pivoted in the direction of the holder 43.

The device described can close the carton 1 1 with an adhesive tape in a so-called Tapestation 60 with only minor modifications instead of the glue application 50. The glue application 50 is in the second

Embodiment replaced by the Tapestation 60. The closing of a carton 1 1 is now via the continuous application of an adhesive tape (tape) for connecting the adjacent areas of the lower and upper outer plates 18,19. Only the outer flap folder 54 (which is arranged on the pressing station 52 during the glue application) is now mounted in the region of the folding station 44. In the folding station 44, the upper and lower outer plates 18,19 now completely folded. The carton 1 1 is moved synchronously through both the transport system 12 with driver 14 and by the holder 43 of the upper rotor 38 continuously through the tapestation 60. Here, the tape is applied to the closed outer plates 18,19.

While the outer flap holder 48 moves the upper outer flap 19 only slightly downwards during the glue application, the outer flap flapper 48 completely closes the outer flap 19 in the closure variant with the taping station 60.

Subsequently, the upper rotor 38 moves freely, Figure 9. Here, the arm 41 is raised so that the holder 42, 43 are no longer in engagement with the boxes 1 1 in the folding station 44 and the Tapestation 60. Only about the

Exhaust device 58, the provided with the adhesive tape finished 1 1 can be ejected from the transport system 12. The top rotor 38 moves back into the position shown in Figure 4.

The device described is particularly suitable for repackaging already packaged products, especially in the food industry. The

However, use is not limited to this.

Claims

claims

Device for filling a carton (11), comprising at least one blank removal (16) for taking out a blank (10), at least one device (16) for unfolding the blank (10) to a carton (11), at least one filling station ( 22) for filling the carton (1 1) with

Products (34), at least one transport system (12), which transports the filled cardboard (1 1) to at least one further work station, in particular a folding station (44) and / or a glue application (50) and / or a taping station (60), characterized in that at least one further transport system (38) is provided for the particular stabilizing action on the cardboard (1 1).

Apparatus according to claim 1, characterized in that as a further transport system at least one upper rotor (38) is provided, which is arranged above the transport system (12) for acting on the cardboard (1 1) from above.

Device according to one of the preceding claims, characterized

in that the further transport system (38) comprises at least one holder (42, 42a, 42b, 43) which acts on at least one cardboard (11) during transport.

Device according to one of the preceding claims, characterized

in that the further transport system (38) comprises at least one further holder (42, 43) which likewise acts on the cardboard (11) or on at least one further cardboard (11) during transport.

Device according to one of the preceding claims, characterized

characterized in that the transport system (12) only comprises at least one sliding driver (14) acting on the cardboard (1 1).

, Device according to one of the preceding claims, characterized

in that the further transport system (38) comprises at least one holder (42, 43) which can be arranged such that the holder (42, 43) acts on a side of the carton (11) which is diagonal to the driver (14).

, Device according to one of the preceding claims, characterized

in that the further transport system (38) comprises at least one folding means (40, 48), in particular an outer flap folder (48) and / or an inner tongue folder (40).

, Device according to one of the preceding claims, characterized

characterized in that the folding means (40) is designed to be relatively movable relative to the further transport system (38).

, Device according to one of the preceding claims, characterized

in that the further transport system (38) comprises at least one ejection unit (58) which can act on a carton (11) and / or cardboard (11) to be ejected.

0. Device according to one of the preceding claims, characterized

characterized in that the further transport system (38) comprises at least one arm (41) on which at least one holder (42, 43) and / or at least one folding means (48) and / or at least one ejecting unit (58) is arranged and the arm (41) is formed movable transversely to the transport direction (13) of the transport system (12).

1 . Method for filling a carton (1 1), wherein at least one

Blank removal (16) removes a blank (10), at least one device (16) unfolds the blank (10) into a carton (1 1), the carton (1 1) filling products (34) in a filling station (22) is transported, wherein at least one transport system (12) the filled cardboard (1 1) to at least one other workstation, in particular a folding station (44) and / or a glue application (50) and / or a Tapestation (60), characterized in that at least one further transport system (38) is provided, which acts in particular stabilizing on the cardboard (11) during the transport.

12. The method according to the preceding method claim, characterized in that the further transport system (38) at least one holder (42,43) lowers to come into contact with the cardboard (1 1).

13. The method according to any one of the preceding method claims, characterized in that the further transport system (38) at least one holder (42,43) raises, opposite to the transport direction (13) of the

Transport system (12) moves the holder (42,43) and then lowered again.

14. The method according to any one of the preceding Verfahrensansprüche, characterized in that the further transport system (38) at least one folding means (40,48) moves for folding at least one tab (19,20) of the carton (1 1).

15. The method according to any one of the preceding Verfahrensansprüche, characterized in that at least one on the further transport system (38) arranged Ausschubeinheit (58) is moved to eject a cardboard box (1 1).