EP2163376A2 - Folding box gluing machine for manufacturing folding boxes made from blanks - Google Patents

Abstract

The machine has a folding station for folding blank sections provided with adhesive strips around 180 degrees. A rotating station rotates the flatly conveyed blank sections around an axis perpendicular to a conveying plane using belt conveyors. Additional belt conveyors (5, 5') are provided for turning the former belt conveyors. The blank sections are selectively supplied to the belt conveyors. A rotating module (19) of the rotating station is moved from a working position into an inactive parking position by manual operation or by using motors. An independent claim is also included for a method for increasing a processing speed of folding box blanks, which are processed without rotation in a folding box gluing machine with a rotating station.

Description

The invention relates to a folding box gluing machine for producing folding cartons from blanks with a folding station, in which the cut parts provided with an adhesive strip are folded, and a turning station arranged in front of the folding station for rotating the flat conveyed blanks about an axis perpendicular to the conveying plane, the conveying elements, from which the blanks are rotated and conveyed through the station.

Folding box gluing machines for the production of folded boxes from blanks have, as is known, a plurality of processing stations, which are passed through in succession by the blanks / boxes: At the beginning, an insert, which removes the blanks to be processed at high speed from a stack one after the other, then a so-called primary crusher To make the creasing lines soft and supple by 180 ° creasing and then at least one folding station, at the beginning of which an adhesive is first applied in strips to the folding flaps to be bonded and then the lateral folding flaps are folded towards the middle. The flat-folded cartons are then passed through a collection and pressing device, in which they are pressed for setting. As conveying means for transporting the blanks through the individual stations, mainly narrow belt conveyors are used, which are adjustable in transverse direction and thus adjustable to the respective box width.

Depending on the box shape, different folding tabs provided with an adhesive strip must be folded by 180 ° and glued to other blank sections in the folding stations. Since the folding occurs at high speeds through the machine during the pass, laterally arranged folding elements are used, of which the folding tabs are folded over on the sides toward the middle. If, in certain box shapes, blank parts have to be folded around two mutually perpendicular creasing lines, it is known that the box is passed through the crease during the passage before the second folding Rotate the turning station about an axis perpendicular to the conveying plane until the corresponding creasing line runs parallel to the conveying direction.

The EP 0 881 138 B1 describes a turning station for turning blanks up to 180 °, containing two conveyor lines side by side along the path of blanks whose speed is separately adjustable. The blanks are on both conveyor lines, so that they are rotated at different speeds of the two conveyor lines about an axis perpendicular to the conveyor plane, while they are supported by the turning station. So that the blanks each assume the speed of the two conveyor tracks, a suction device is arranged below the conveyor elements, which increases the frictional force between the conveyor elements and the objects by means of negative pressure.

In practice, it has been shown that the conveying elements of the rotating station, which also serve to rotate the blanks, can only be operated at a lower speed than the conveyors passing through the other processing stations. While the conveyors can be operated by the other processing stations, for example, with 650m / min, reach the conveying elements of the turning station only speeds of about 450m / min. This has the disadvantage that simpler box shapes that do not require the use of the rotating station in their production, can only be made at a lower speed, as well as these blanks must be promoted by the turning station.

The invention is therefore based on the object to improve a folding box gluing machine of the generic type with a turning station so that they can produce simpler box shapes that do not require rotation with higher production speed.

The object is achieved by a device according to the characterizing features of claim 1 and a method according to claim 10. According to the invention, an additional conveyor is provided to circumvent the rotation causing conveyor elements of the rotating station. Furthermore, the machine contains means that the Blanks optionally the conveyor elements of the turning station - if rotation is required - or the additional conveyor supply, if no rotation is required.

In a preferred embodiment, the additional conveyor consists of at least one conveyor belt pair. The conveyor belt pair has an upper and lower conveyor belt, between which the blanks are conveyed clamped. The conveyor belt pair (s) are either arranged next to or below the turning station, so that they can be exchanged for the turning station and form a transport station.

In a particularly preferred embodiment, the turning station can be moved laterally or upwardly or downwardly into a parking position on guides and the at least one conveyor belt pair can be moved laterally or downwardly or upwardly into the working position, thus forming a transport station. The movement can be carried out either manually or by motor.

In a further advantageous embodiment, the rotating station can be pivoted or rotated about an axis in the conveying direction. As a result, they can be easily moved from the working position to an inactive parking position. Such rotation is particularly advantageous when the additional conveyor is mounted on the underside of the turning station. Here, in the case of rotation, the turning station is brought from the working position to the parking position and at the same time the additional conveyor in the working position.

In a further advantageous embodiment, the turning station can be moved out of the machine assembly, for example, on rails transversely to the conveying direction. The processing stations in front of and behind the turning station are also movable, for example, mounted on rails. By moving these stations in and against the conveying direction, the resulting gap can be closed. After then the interfaces and connectors are connected accordingly, so the machine network is quickly and easily functional again.

Figur 1

zeigt in einer perspektivischen Darstellung beispielhaft einzelne Bearbeitungsstationen einer Faltschachtelklebemaschine

Figur 2

zeigt den Ausschnitt einer Faltschachtelklebemaschine mit einer Drehstation und einer neben dieser angeordneten Transportstation.

Figur 3

zeigt eine Ausführungsform, bei der die Transportstation gegen die Drehstation ausgewechselt worden ist

Figur 4

zeigt eine alternative Ausführungsform, bei der die Drehstation seitlich aus der Förderrichtung heraus bewegbar ist

Figur 5

zeigt die alternative Ausführungsform gemäß Fig. 4, bei der die Transportstation gegen die Drehstation ausgewechselt worden ist

Figur 6

zeigt den Ausschnitt einer Faltschachtelklebemaschine mit einer seitlich herausfahrbaren Drehstation

Figur 7

zeigt den Ausschnitt einer Faltschachtelklebemaschine gemäß Fig. 6, bei der die Drehstation seitlich herausgefahren und gegen eine Transportvorrichtung ausgewechselt worden ist.

The invention will be explained with reference to various embodiments:

FIG. 1

shows in a perspective view by way of example individual processing stations a Faltschachtelklebemaschine

FIG. 2

shows the section of a folding box gluing machine with a turning station and a transport station arranged next to this.

FIG. 3

shows an embodiment in which the transport station has been replaced with the turning station

FIG. 4

shows an alternative embodiment in which the turning station is laterally movable out of the conveying direction

FIG. 5

shows the alternative embodiment according to Fig. 4 in which the transport station has been replaced with the turning station

FIG. 6

shows the section of a folding box gluer with a laterally extendable turning station

FIG. 7

shows the detail of a Faltschachtelklebemaschine according to Fig. 6 , in which the turning station has been moved out laterally and replaced with a transport device.

All Faltschachtelklebemaschinen according to the embodiments contain a plurality of processing stations, which are traversed by the blanks / boxes in succession.

The folder gluer starts in FIG. 1 bottom right with an insert 1, which pulls off the blanks to be processed at high speed from a stack one after the other and feeds them individually to the subsequent processing station.

Following the insert 1 is followed by an alignment station 4, in which the blanks are individually aligned against a lateral stop. The alignment station is used to guide transversely positionable machine components in the form of two belt pairs, which serve as conveyor elements and can be transversely positioned via actuators.

This is followed by a primary crusher 6 and a first folding module 7. Both through the primary crusher 6 and through the folding module 7, machine components in the form of belt pairs, which can be positioned transversely, lead as conveying elements, which are positioned transversely with an actuator depending on the type of blank.

On the folding module 7 follows a turning station 9. The turning station 9 includes for rotating the blanks about a vertical axis by 90 ° two parallel juxtaposed conveyor lines whose speed is adjustable separately. The blanks are on both conveyor lines, so that they are rotated at different speeds of the two conveyor lines. The two conveyor lines contain driven rollers as conveying elements.

Subsequent to the turning station 9 is followed by a further alignment station 10, which corresponds in its construction of the alignment station behind the insert 1. It thus again contains transversely positionable machine components in the form of pairs of conveyor belts as conveying elements.

The next processing station 13 serves to perform box-type dependent processing operations; For example, further score lines are pre-broken or special folds are performed. Also through the processing station 13 lead belt pairs as conveying elements that can be positioned transversely with actuators.

This is followed by a folding station 14, in which the blank parts previously provided with an adhesive seam are folded over by 180 °. The folding station 14 contains pairs of belts as conveying elements and an adhesive applicator, which by means of actuators in their from Cutting type dependent transverse position can be moved. This is followed by a transfer station 15, from which the folded blanks, provided with not yet set adhesive seams, are exactly aligned in all parts with the subsequent collecting and pressing device 16. In the collecting and pressing device 16, a shingled stream of folded blanks is first formed, which is subsequently held under pressure for some time between conveying press belts, so that the adhesive seams set. The transfer station also contains pairs of belts, which can be transversely adjusted by means of actuators.

The folding box gluing machine contains a control device from which the actuators of the conveying elements, adhesive applicators and other machine components comprising transverse processing tools are controlled to take intended positions. These machine components are electronically coupled via the controller and are positioned depending on the type of box to be produced, while the conveying elements of the rotating station 9 remain stationary, so are not adjusted.

The Fig. 2 shows the section of the rotating station 9 a folding box gluer according to FIG. 1 , As can be seen, the actual rotary module 19 of the rotating station 9, which is shown here only schematically, on slats 17 which are fixed to the frame 18 of the rotating station 9, slidably mounted up or down. The actual conveying device of the rotary module 19 is not shown in detail. In this respect, with regard to the operation of the rotary module 19 expressly to the disclosure of EP 0 881 138 B1 directed.

In addition to the rotary module 19, a further conveyor in the rotating station 9 is present. This consists of two belt conveyors 5, 5 ', each consisting of a lower conveyor belt 2, 2' and an upper conveyor belt 3, 3 ', between which the blanks are conveyed clamped consist.

The belt conveyors 5, 5 'are designed in a known manner and mounted on round cross members 20, so that they can be adjusted transversely adjustable to the respective cutting width.

FIG. 2 shows the section of the rotating station 9 with lowered rotary module 19, so the rotary module in the active working position. In this case, the belt conveyors 5, 5 'are transversely moved outwards and are located, for example, on the right and left of the rotary module 19 in an inactive parking position. The belt conveyors 5, 5 'can in this case also both be adjusted to the right or left next to the rotary module 19 in an inactive parking position.

FIG. 3 In principle, of course, a lowering of the rotary module 19 below the conveying plane is possible. In both cases, it is only important that the rotary module 19 is removed from the conveyor plane for the blanks to an inactive parking position. In order to close the now emerging gap in the conveying plane, the belt conveyors are transversely moved from their lateral parking positions into an active conveying position. This makes it possible to supply blanks in which rotation is required to feed the rotation elements of the rotary module 19, or alternatively blanks in which rotation is not required, at increased speed by means of the belt conveyors 5, 5 'on the conveyor elements of the rotary module 19 to promote over.

The FIGS. 4 and 5 show an alternative embodiment of the rotating station 9 with laterally displaceable rotary module 19th

As in FIG. 4 1, the rotary module 19 is mounted on cross struts 21 extending through the lateral housing wall 22 either to the left or as shown in FIG FIG. 4 shown, pushed out to the right from the rotating station 19. FIG. 4 shows the turning station 9 with the rotary module 19 in the active working position. The turning station 9 has a further conveying device. This consists in the present embodiment of two belt conveyors 5, 5, each consisting of a lower conveyor belt 2, 2 'and an upper conveyor belt 3, 3', between which the blanks are conveyed clamped consist. The belt conveyors 5.5, are executed in a known manner and mounted on round bars 20 so that they can be adjusted transversely adjustable to the respective blank width.

In FIG. 4 the belt conveyors 5, 5 'are shown to the left of the rotary module 19 in an inactive parking position. It is also possible to attach the belt conveyors 5, 5 'on the right side next to the rotary module 19 in the event that the rotary module 19 is to be shifted to the left on the rotary station 9 in an inactive parking position.

In FIG. 5 the rotary module is in a lateral inactive parking position. Instead, the belt conveyors 5, 5 'were transversely displaced to an active conveying position on the round trusses 20.

In a further, not shown, alternative embodiment, the additional conveyor is located on the underside of the rotary module 19. The rotary module 19 is in this case mounted about an axis in the conveying direction pivotally or rotatably mounted in the housing of the rotating station 9. When rotating the rotary module from an active conveying position to an inactive parking position, the additional conveying device is simultaneously rotated from an inactive parking position into an active conveying position. Also in this case, the additional conveyor of belt conveyors 5, 5 'exist.

The FIGS. 6 and 7 Now show a further alternative, but in which no additional conveyor is necessary. In this alternative embodiment, the turning station can be moved out laterally, for example, on rails 23 from the folding box gluing machine assembly. This can either be left or, as in the FIGS. 6 and 7 shown, done to the right. The resulting gap is closed by the fact that the processing stations arranged in front of and / or behind the turning station are movably mounted in or against the conveying direction, for example in rails 24. By appropriate displacement, thus, the gap can be closed. In this embodiment, therefore, the rotating station 9 is removed from the assembly of Faltschachtelklebemaschine and driven laterally in a parking position when it is not needed. By closing the gap by moving the preceding and / or subsequent processing stations in or against the conveying direction, the blanks can be promoted without disruption and at increased speed by the now shortened Faltschachtelklebemaschine. In the FIGS. 6 and 7 is the possibility of moving the arranged before the rotary module 19 processing stations shown in the conveying direction. By appropriate storage of the arranged after the rotary module station on rails, however, the gap can be closed by moving these stations against the conveying direction.

LIST OF REFERENCE NUMBERS

1

depositors

2, 2 '

lower conveyor belt

3, 3 '

Upper conveyor belt

4

aligner

5, 5 '

belt conveyor

6

primary crusher

7

folding module

9

turning station

10

aligner

11

Stripper plate

12

frame

13

processing station

14

folding station

15

transfer station

16

Collecting and pressing device

17

pole

18

frame

19

Lathe

20

around Traverse

21

crossmember

22

Side wall

23

rail

24

rail

Claims (12)

Folding carton gluing machine for the production of folded cartons from blanks with a folding station, in which the cut parts provided with an adhesive strip are folded, and
a turning station (9) for rotating the flat conveyed blanks about an axis perpendicular to the conveying plane, the conveying elements of which the blanks are rotated and conveyed through the station;
characterized,
in that in order to circumvent the conveying elements of the rotating station causing the rotation there is an additional conveying device (5, 5 '), and means are provided which selectively supply the blanks to the conveying elements of the rotating station or of the additional conveying device. Folding box gluing machine according to claim 1,
characterized,
in that the additional conveying device has at least one conveyor belt pair (5, 5 ') which consists of a lower (2, 2') and an upper (3, 3 ') conveyor belt between which the blanks are conveyed in a clamped manner. Folding box gluing machine according to claim 1,
characterized,
the at least one pair of conveyor belts (5, 5 ') adjacent to or below the rotary module (19) is arranged in the turning station (9). Folding box gluing machine according to claim 2,
characterized,
in that the at least one conveyor belt pair (5, 5 ') is interchangeably mounted against the rotary module (19) and forms a transport station. Folding box gluing machine according to claim 4,
characterized,
in that the rotary module (19) is releasably and movably mounted laterally or upwards or downwards in an inactive parking position from the assembly of the processing stations of the folding box gluing machine, and that the at least one conveyor belt pair (5, 5 ') corresponding laterally or downwardly or upwardly is movably mounted in the working position of the rotating station (9), and thus forms a transport station. Folding box gluing machine according to claim 5,
characterized,
that the rotary module (19) and / or the transport station parking position are manually or by a motor of its working position into an inactive moved. Folding box gluing machine according to claim 4,
characterized,
that the rotary module (19) is pivotally mounted about an axis parallel to the conveying direction, so that it can be pivoted from its working position to an inactive parking position. Folding box gluing machine according to claim 7,
characterized,
in that during pivoting of the rotary module (19) into the inactive parking position at the same time the at least one pair of conveyor belts (5, 5 ') is pivoted into the working position. Folding box gluer for the production of folding boxes from blanks with - A folding station (14) in which the provided with an adhesive strip blank parts are folded, and a turning station (9) for rotating the flat-fed blanks about an axis perpendicular to the conveying plane, the conveying elements of which the blanks are rotated and conveyed through the station, characterized,
in that the turning station (9) is movable transversely to the conveying direction of the blanks into an inactive parking position, and that the front and rear of the rotating station (9) arranged processing stations for closing the gap formed during removal of the rotary station (9) are movably mounted in and against the conveying direction of the blanks. Method for increasing the processing speed in a folding box gluing machine with a turning station during the processing of folding box blanks which can be processed without rotation,
characterized,
that the Faltschachtelklebemaschinenverbund is changed. Method according to claim 10,
characterized,
in that the change in the folding box gluing machine combination consists in that the rotary module (19) is bypassed or replaced by a conventional belt transport module (5, 5 '). Method according to claim 10,
characterized,
that the rotary module (19) is released from the carton gluing machine assembly and is either removed laterally or upwards or downwards from the assembly and is replaced by a conventional belt transport module (5, 5 ').

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