EP1418145A1 - Method and apparatus for producing coupons of folded paper - Google Patents

Abstract

The method of production of folded coupons with two leaves glued together. There are hot melt glue application stations (18,19) positioned on a feed path (11) of the coupon material. The hardened glue areas on the material web (11) are separated and passed through a folding assembly (26). The coupons are heated and pressed to produce the folds. Claims include a machine for folding coupons.

Description

The invention relates to a method for producing in particular multiply folded Cut from thin material, in particular print media or coupons from paper - Folding coupons - where the folding coupon is folded so that at least two folding legs arise that are bonded together (detachably). Furthermore concerns the invention an apparatus for performing the method.

The folding coupon serves as an addition to packs, especially cigarette packs. The aim of the cigarette pack is to give the consumer the largest possible area Offer print media, factual information, advertising information or vouchers includes. The folding coupons, which are usually folded several times, are initially cut as a blank from a material web (paper) and conveyed through a folding unit (buckle folder), which performs the (multiple) folding. In connection at least two folding legs of the folding coupon are passed through to the folding unit punctiform or flat adhesive bonded together. The folding coupon thus formed is introduced into the manufacturing or folding process of the (cigarette) pack and positioned within the pack. With cigarette packs, it is common to use the folding coupon between the actual cigarette pack and an outer wrapper Place slide. Alternatively, the folding coupon can also be found on the outside of the outer wrapper be attached.

It is about the rational, economical production and provision of such folding coupons.

The invention has for its object the manufacture of multiple times folded coupons so that the coupons fold without sacrificing performance can be supplied even during the manufacture of the pack.

a) Leimstellen bzw. Leimfelder zum Verkleben von Faltschenkeln werden auf eine fortlaufende Materialbahn zum Herstellen der Falt-Coupons positionsgenau aufgebracht,

b) die Leimfelder bestehen aus Heißleim (Hot-Melt),

c) von der mit ausgehärteten Leimfeldern versehenen Materialbahn werden Zuschnitte abgetrennt und einem Faltaggregat zur Durchführung von Faltungen bzw. zum Herstellen der Falt-Coupons zugeführt,

d) nach dem Falten des Zuschnitts werden die aus Heißleim bestehenden Leimfelder durch Zuführen von Wärme aktiviert und die Faltschenkel durch Druck miteinander verbunden.

To achieve this object, the method according to the invention is characterized by the following features:

a) glue spots or glue fields for gluing folding legs are applied to a continuous material web for producing the folding coupons,

b) the glue fields consist of hot glue,

c) cuts are cut from the material web provided with hardened glue fields and fed to a folding unit for carrying out folds or for producing the folding coupons,

d) after folding the blank, the glue fields consisting of hot glue are activated by adding heat and the folding legs are connected to one another by pressure.

By using glue fields or glue spots, namely glue points or small ones Glue surfaces made of hot melt glue make it possible to glue the glue fields to the material web to be attached, according to the position on the finished folding coupon.

When producing folding coupons from a double-wide and / or double-layer folded Material web are two or more glue spots or glue fields - before a cross fold the material web to create the double-layer training - on the material web to attach, the glue spots or glue fields are positioned so that each outer folding legs, possibly three outer folding legs, connected together become.

The peculiarity of the device according to the invention is that it is is an independent piece of equipment that works on a packaging machine can be attached that the finished folding coupons directly to the packaging machine are handed over, in particular to a film wrapping machine.

The device is provided with at least one glue unit for applying the Glue fields according to the printing marks attached to the material web. Farther is in a special way an adjoining the folding unit for the folding coupon Activation unit designed for hot melt.

Fig. 1

eine Vorrichtung zum Herstellen von Falt-Coupons aus Materialbahnen in schematischer Seitenansicht,

Fig. 2

eine Einzelheit der Vorrichtung gemäß Fig. 1, nämlich ein Leimaktivierungsaggregat, in einem Querschnitt der Schnittebene II-II in Fig. 1, bei vergrößertem Maßstab,

Fig. 3

das Aktivierungsaggregat gemäß Fig. 2 in einer Stirnansicht gemäß Pfeil III in Fig. 1,

Fig. 4

das Aktivierungsaggregat gemäß Fig. 2, Fig. 3 in Draufsicht entsprechend Pfeil IV in Fig. 1, ebenfalls in vergrößertem Maßstab,

Fig. 5

eine weitere Einzelheit der Vorrichtung, nämlich ein Rillaggregat, in Seitenansicht, bei vergrößertem Maßstab (Ausschnitt V in Fig. 1),

Fig. 6

einen (doppelten) Falt-Coupon in Draufsicht,

Fig. 7

einen Querschnitt durch den Falt-Coupon gemäß Fig. 6 in der Schnittebene VII-VII,

Fig. 8

einen Abschnitt einer Materialbahn zum Herstellen von Zuschnitten für Falt-Coupons in Draufsicht,

Fig. 9

einen Querschnitt durch die Materialbahn gemäß Fig. 8 in der Schnittebene IX-IX,

Fig. 10

einen (doppelten) Falt-Coupon aus einer Materialbahn gemäß Fig. 8, Fig. 9, in Draufsicht,

Fig. 11

den Falt-Coupon gemäß Fig. 10 im Querschnitt in der Schnittebene XI-XI,

Fig. 12

einen (doppelten) Zuschnitt für die Fertigung von Falt-Coupons gemäß Fig. 6, Fig. 7,

Fig. 13

einen Abschnitt einer Materialbahn für die Fertigung von Falt-Coupons gemäß Fig. 10, Fig. 11.

Details of the device and the blanks or folding coupons to be produced are explained in more detail below with reference to the drawings. It shows:

Fig. 1

1 shows a device for the production of folding coupons from material webs in a schematic side view,

Fig. 2

1 shows a detail of the device according to FIG. 1, namely a glue activation unit, in a cross section of the sectional plane II-II in FIG. 1, on an enlarged scale,

Fig. 3

2 in an end view according to arrow III in Fig. 1,

Fig. 4

2, 3 in plan view according to arrow IV in Fig. 1, also on an enlarged scale,

Fig. 5

a further detail of the device, namely a creasing unit, in side view, on an enlarged scale (detail V in Fig. 1),

Fig. 6

a (double) folding coupon in top view,

Fig. 7

6 shows a cross section through the folding coupon according to FIG. 6 in the sectional plane VII-VII,

Fig. 8

a section of a material web for producing blanks for folding coupons in plan view,

Fig. 9

8 shows a cross section through the material web according to FIG. 8 in the section plane IX-IX,

Fig. 10

a (double) folding coupon from a material web according to FIG. 8, FIG. 9, in plan view,

Fig. 11

10 in cross section in the sectional plane XI-XI,

Fig. 12

a (double) blank for the production of folding coupons according to FIG. 6, FIG. 7,

Fig. 13

a section of a material web for the production of folding coupons according to FIG. 10, FIG. 11.

The device for producing folded print carriers, shown schematically in FIG. 1, namely folding coupons 10, is designed as an independent unit with a machine frame or machine housing. The device can be connected to a packaging machine are connected to introduce the finished folding coupons 10 into the packaging process. A suitable, advantageous solution for this results from EP 1 125 843.

The folding coupons 10 are made from a continuous material web 11 made of paper or similar material. The material web 11 is in each case a bobbin 12, 13 deducted, which is part of the device. The material web 11 passes through a splicing unit 14 for connecting a running material web with a new one. It closes to a rail pendulum 15, which generates several rail loops as compensation memory. Then the material web 11 reaches the upper part of the device, in which a preparation on the production of folding coupons 10.

To manufacture the folding coupons 10, the material web 11 must first be in the direction of movement are aligned exactly and for this purpose passes through a unit 16 Edge control. Then the material web 11 is deflected to form an upright or vertical web section 17. In this area the material web 11 provided with glue, namely with glue points or glue fields 18, 19. The glue becomes transferred by glue units 20, 21, which are preferably based on the principle of contact gluing work, i.e. with contact nozzles, which briefly receive contact with the material web for transferring one or more glue fields 18, 19. The glue units 20, 21 are arranged on both sides of the material web 11, namely offset in height to each other.

After an upper redirection and a subsequent vertical section of the material web 11, it reaches the area of a print mark reader 22. The material web 11 is provided with precisely positioned print marks through which certain organs are controllable. The print mark reader 22 is in particular an optoelectronic one Sensor that recognizes the print marks and then generates control signals.

By redirecting the material web 11, it passes into the area of preferred rollers 23. These effect an exact, preferably, by appropriate drive continuous conveying movement of the material web 11, namely to a separating unit 24 for separating flat, unfolded blanks 25 from the material web 11. The separating unit 24 consists of a rotating knife roller with a fixed one Against knife. The separation unit 24 is controlled by the spur mark reader 22.

The blanks 25 are successively conveyed into a folding unit 26 by conveying members (Buckle folder) promoted. Leave on one exit side with regard to folding complete folding coupons 10 the folding unit 26.

The folding coupons 10 can be designed in different ways. A first one Execution is shown in cross section in FIG. 7. Then the blank 25 is folded so that a total of four folding legs 27, 28, 29, 30 arise. The folding is done that an inner folding leg 29 is covered by folding legs 28 and 30. On outer folding leg 27 is connected to the adjacent inner leg 28, and although by a free edge of the folding leg 27 facing glue field 18 of the described Execution.

A folding coupon 10 formed in this way is made from an elongated, rectangular blank (Fig. 12) folded. In the present case, a double track is used, i.e. one Material web 11 double width. The one separated from the material web 11, the folding unit 26 supplied blank 25 accordingly has a double width and consists of two individual cuts 31, 32 lying side by side. The individual folding legs 27..30 are indicated by transverse, dashed lines, whereby these lines are also transverse fold lines. Each of the individual cuts 31, 32 is assigned a glue field 18. The one consisting of the two individual cuts 31, 32 Blank 25 is inserted into the folding unit 26. A folding coupon therefore emerges from this double width from (Fig. 6). This is in the area of a middle parting plane 33 severed, so that afterwards two individual folding coupons 10 in the embodiment according to Fig. 7 arise. Before the separating cut (or alternatively afterwards) the hot-melt existing glue fields 18 (re-) activated by supplying heat. Be further the folding legs 27..30 pressed together so that the connection between the Folding legs 27 and 28 is created in the area of the glue field 18.

In the device according to FIG. 1, the folding unit 26 has a special one Device 34 arranged in this manner, which completes the folding coupons 10. The device 34 consists of a heating station 35 and a separation station 36 (Double-width) folding coupons 10 emerging from the folding unit 26 arrive immediately into the device 34 for aftertreatment and through by a coupon conveyor the heat station 35 and then transported through the separation station 36.

For this purpose, the device 34 consists of several belt conveyors 37, 38, 39. Each this belt conveyor 37..39 consists of two opposite and upper lower endless belts. Between conveying strands 40 and 41 facing each other the folding coupons 10 transported. The arranged on common shafts or axes Belt conveyors 37, 38, 39 are arranged at a distance from one another. Between neighboring Belt conveyors 37, 38 on the one hand and 38, 39 on the other hand are each a heating element 42 arranged. It is elongated in the direction of transport running radiator with a heating element, e.g. B. a heating cartridge. This creates the required temperature to reactivate the glue of the glue fields 18, 19. At the The present example (FIG. 2) has a heating element 42 above it for each folding coupon 10 the movement path of the respective folding coupon 10 positioned in the area of the glue field 18, 19. This is directed upwards for optimal heat transfer. Elongated support elements 43 are arranged below the heating elements 42, that fill the space formed between the belt conveyors.

In the heating station 35 thus formed, the heating elements 42, 43 the required heat and through the delivery strands 40, 41 the required pressure the folding legs 27, 28 to be connected are applied.

The (double-width) folding coupons are connected to the heating station 35 a separating knife 44 is cut in the middle. The separating knife 44 is on the circumference of a knife roll 45 attached. A counter roller 46 is in the effective range of the cutting knife 44 a groove 47 running around it. The knife roll 45 is below and Counter roller 46 arranged above the path of movement of the folding coupons 10.

The coupon conveyor extends over both stations. For this purpose, the edge belt conveyor 37, 39 to the area of the separation station 36. On a common Axle with knife roller 45 and counter roller 46 are deflection rollers 48 for the Belt conveyor 37, 39 mounted. The middle belt conveyor 38 ends at a distance from the knife roll 45 on a deflection roller 49 of a transverse axis attached in this area.

A special feature is the folding coupon 10 according to FIG. 11. In principle, this is the same Folded in the same way as the folding coupon 10 according to FIG. 7, but made of double-layer material or from a double-layer blank 25.

A double-layer material web is used to produce such a folding coupon 10 11 according to FIG. 8, FIG. 9 for use. The originally double-wide material web 11 is double-layered by folding over edge-side web legs 50, 51, with edges the material web 11 fold edges arise. The web legs 50, 51 are dimensioned so that in the longitudinal center of the material web 11 there is a small distance between the two facing edges of the web legs 50, 51 arises, namely a longitudinal gap 52.

Blanks 10 are cut off from the material web 11 thus formed (FIG. 8) handed over to the folding unit 26. The one prepared for this type of folding coupe 10 Blank 25 has the cross-sectional shape shown in FIG. 9 and in plan view that of FIG. 8 apparent structure.

In principle, the same folding steps are carried out, so that each double layer Folding legs 27, 28, 29, 30 are formed, the outer, free folding leg 27 made of there are two layers 53, 54. The two layers 53, 54 are by an (additional) glue field 19 connected to each other. The entire folding leg 27 or its inner layer 54 is through the glue field 18 with a facing position of the next folding leg 28 connected. The material web 11 must also with regard to the attachment of the glue fields 18, 19 prepared for the special design of the folding coupon 10 according to FIG. 11 become.

13 shows a section of the material web 11 for a folding coupon 10 according to FIG. 11, before folding the web legs 50, 51. By a middle dash-dotted line Line 55 indicates the parting line, in the area of which the double-wide, double-layered Folding coupon is cut according to FIG. 10. The dashed lines show the fold lines, the lines running in the longitudinal direction the folded edges of the correspond to double-layer material web 11 according to FIG. 9. Because of the special gluing 11 are each partial web of the material web 11 of free folding legs assigned two glue fields 18, 19. These are on different sides, i.e. on the top and underside of the material web 11 positioned. By folding the material web 11 in the longitudinal direction and the subsequent transverse folding in the region of the folding unit 26 the glue fields 18, 19 reach a cover position corresponding to FIG. 11. Alternatively the glue fields 18, 19 can be offset at least in the transverse direction of the material web 11 to each other, so that in the finished folding coupon 10 the relevant glue fields 18, 19 are also offset in the transverse direction.

In the area of the device 34 for post-processing, this exemplary embodiment also takes place a separation of the double-wide folding coupon 10 (execution according to Fig. 10) in the longitudinal center, namely along line 55. The separating cut is in the area of the longitudinal gap 52, so that the (folded) web legs 50, 51 from the Separation cut are not recorded.

Another special feature is shown in FIG. 5. When using materials for the Folding coupon 10 with higher strength, but especially with multi-layer folding coupons 10 (embodiment according to FIG. 11) can preform the material or the material web 11 be appropriate. An embossing member 56 according to FIG. 5 is provided for this purpose. The embossing member 56 consists of two embossing rollers, namely an upper roller 57 with rib-like projections 58 and a lower counter roller 59 with axially parallel Grooves 60. The unfolded or in the sense of Fig. 8 / Fig. 9 folded material web 10 is conveyed between the two rollers. This will be cross-directional Grooves 61 are formed in the material or in the material web 11. These grooves 61 correspond the folding lines in the manufacture of the folding coupon 10 in the folding unit 26. Die The distances between the projections 58 and the grooves 60 correspond to the positions of transverse fold lines, which are produced in the area of the folding unit 26. Projections 58 and Grooves 60 work together in the stamping process.

The device for producing folding coupons 10 (FIG. 1) is expediently so set up that alternatively one or the other execution of folding coupons 10 according to Fig. 7 or Fig. 11 can be manufactured. When producing folding coupons 10 the latter embodiment, an additional unit 62 of the device is used. This is attached to the top of the device and can either be firmer Be part of the device or removably attached to it.

If folding coupons 10 are to be produced in the embodiment of FIG. 11, the Material web 11 following the gluing or following the gluing units 20, 21 horizontally deflected and opposite to the described embodiment (Arrows in Fig. 1) conveyed through the additional unit 62 (dashed line). After deflection, the material web 11 runs through a schematically shown one Folding unit 63. This is designed in a known manner so that during transport continuously folded the two web legs 50, 51 into the position according to FIG. 8, FIG. 9 become. Following the folding unit 63, the now double-layer material web 11 conveyed through the embossing element 56 already described. After two The material web 11 thus prepared then returns to the area of the deflection The device already described is namely guided past the print mark reader 22. The following sequence in the device corresponds to the exemplary embodiment described.

LIST OF REFERENCE NUMBERS

10

Folding coupon

11

web

12

reel

13

reel

14

Spliceaggregat

15

bus shuttle

16

unit

17

Track section.

18

Leimfeld

19

Leimfeld

20

glue assembly

21

glue assembly

22

Print Mark

23

feed rollers

24

separating unit

25

cut

26

folding unit

27

folding legs

28

folding legs

29

folding legs

30

folding legs

31

Single cut

32

Single cut

33

parting plane

34

device

35

heat station

36

separating station

37

Belt conveyors

38

Belt conveyors

39

Belt conveyors

40

conveying

41

conveying

42

heating element

43

support organ

44

separating knife

45

knife role

46

counter-roller

47

groove

48

idler pulley

49

idler pulley

50

path branch

51

path branch

52

longitudinal gap

53

camp

54

camp

55

line

56

impressing member

57

top roll

58

head Start

59

backing roll

60

groove

61

groove

62

additional unit

63

folding unit

Claims (14)

A method for producing in particular multi-folded printing carriers made of thin material, in particular folding coupons (10) from paper, said folding coupon (10) is folded so that at least two folding legs (27, 28) are interconnected by gluing in due to the following features: a) glue spots or glue fields (18, 19) for gluing folding legs (27, 28) are applied to a continuous material web (11) for producing the folding coupons (10), b) the glue fields (18, 19) consist of hot glue, c) cuts (25) are separated from the material web (11) provided with hardened glue fields (18, 19) and fed to a folding unit (26) for carrying out folds or for producing the folding coupons (10), d) after folding the blank (25), the glue fields (18, 19) consisting of hot glue are activated by supplying heat and the folding legs (27, 28) are connected to one another by pressure. Method according to Claim 1, characterized in that the glue fields (18, 19) are applied during the production of the material web (11) and are made available to a packaging machine for the production of packs with a folding coupon (10). Method according to Claim 1 or 2, characterized in that, in the case of two-web production, by cutting off blanks (25) from a double-wide web (11), two adjacent glue fields (18, 19) are applied to the web (11) in a precisely positioned manner. Method according to Claim 1 or one of the further claims, characterized in that blanks (25) are separated from a double-width and double-layer material web (11) and then further processed to form a double-width folding coupon (10) and then cut through to create a single fold - Coupons (10), the material web (11) being folded such that two folding legs (27, 28) can be folded to cover with a central region of the material web (11) in such a way that the double-layer material web (11) on both edges Has folded edges. Method according to claim 4 or one of the further claims, characterized in that the web legs (50, 51) of the material web (11) run at a (small) distance from one another such that a longitudinal gap (52) between the web legs (50, 51) is formed, preferably in a longitudinal center plane of the material web (11). Method according to Claim 4 or one of the further claims, characterized in that at least two glue fields (18, 19) for each folding coupon (11) to be produced are attached to the (unfolded) material web (11) for connecting more than two folding legs ( 27, 28, 29) with each other. Method according to claim 6, characterized in that the folding coupons (10) made from a two-layer blank (25) have two glue fields (18, 19) for each folding coupon (10), the glue fields (18, 19) be attached to opposite sides of the material web (11). Device for producing folded print carriers - folding coupons (10) - by separating unfolded, possibly multi-layered blanks (25) from a material web (11) and folding them in the area of a folding unit (26), characterized in that the (unfolded ) Material web (11) can be moved past at least one glue unit (20, 21) for the transfer of glue fields (18, 19) to the material web (11), the glue unit (20, 21) according to print marks on the material web (11) Can be controlled by at least one print mark reader (22) and then blanks (25) provided with glue fields (18, 19) can be separated from the material web (11) in the area of a separating unit (24) and fed to the folding unit (26). Apparatus according to claim 8, characterized in that the - double-width - material web (11) following the gluing units (20, 21) can be conveyed through a folding unit (63), in particular in the region of an additional unit (62), in the region of the folding unit (63) the material web (11) can be folded in two layers, preferably with the formation of two edge-side web legs (50, 51). Apparatus according to claim 8 or 9, characterized in that (directly) a device (34) for after-treatment of the folding coupons (10) with a heating station (35) for transferring heat to the folding coupons is connected to the folding unit (26) (10) and for compressing the folding legs (27, 28, 29) of the folding coupons (10). Device according to claim 10 or one of the further claims, characterized in that a separating station (36) is formed for severing double-width folding coupons (10) following the heating station (35), preferably with a rotating circular separating knife (44) on a knife roller (45) which works together with a counter roller (46). Device according to claim 10 or one of the further claims, characterized in that the device (34) for the after-treatment of the folding coupons (10) has a plurality of belt conveyors (37, 38, 39) for transporting the folding coupons (10), the Belt conveyors (37, 38, 39) are arranged at a distance from one another and are arranged between these heating elements (42) for transferring heat to the folding coupons (10). Device according to claim 12 or one of the further claims, characterized in that the folding coupons (10) can be transported in the region of the heating station (35) between conveying strands (40, 41) of the belt conveyors (37, 38, 39) for the transmission of pressure on the folding coupons (10). Apparatus according to claim 8 or one of the further claims, characterized in that the material web (11) can be passed through an embossing member (56) for making transverse grooves (61) corresponding to folding lines of the folding coupons (10), the embossing member (56 ) is arranged after the glue units (20, 21), preferably after the folding unit (63) for producing double-layer material webs (11).

Images