DE102012104060A1 - Method and device for producing blanks, in particular for packs for cigarettes - Google Patents

Abstract

The invention relates to a method for producing blanks (33) in particular for packs (10) for cigarettes, wherein a material web (32) for the production of individual blanks (33) at intervals with a print (31, 49) is provided, and wherein the material web (32) is provided with embossing (30) at intervals by means of an embossing device (34) and individual blanks (33) are separated from the material web (32) by means of a cutting device (45) such that preferably each blank (30) 33) at a predetermined position has a printing (31, 49) and an embossment (30). The invention is characterized in that together with the embossments (30) in each case a mark (37) on the material web (32) is mounted, and that the relative position of the imprints (31, 49) and the embossments (30) to each other by comparing the Relative position of the imprints (31, 49) and markings (37) is determined to each other, wherein the relative position of the imprints (31, 49) and embossments (30) is aligned to each other if necessary, in particular by corresponding change in the conveying speed of the material web (32).

Description

The invention relates to a method for producing blanks, in particular for packs for cigarettes, wherein a material web for the production of individual blanks is provided at intervals with a printing, and wherein the material web is provided by means of a stamping device at intervals with an embossing and wherein individual blanks the material web are separated by means of a cutting device, such that preferably each blank has a printing and embossing at a predetermined position, according to the preamble of claim 1.

Furthermore, the invention relates to an apparatus for carrying out this method according to the preamble of claim 11.

A method and a device of the type mentioned are, for example, from WO 2007/059820 A1 known from the house of the applicant. The publication deals with the stamping of blanks for inner liners of a cigarette pack, wherein the inner liners have both an imprint and an imprint. The subject of the application is a special design of a pair of embossing rolls, which allows a shift in the relative position of the printing and the embossing on the blank.

On this basis, the invention has the object to further develop methods and devices of the type mentioned, in particular with regard to a simpler or more accurate alignment of the printing and embossing each other.

To solve this problem, a method according to the invention has the features of claim 1. It is therefore provided that, in each case a marking is attached to the material web together with the embossments, and that the relative position of the imprints and the embossments to each other by comparing the relative position of the imprints and marks is determined to each other, the relative position of the imprints and imprints as needed is aligned with each other, in particular by corresponding change in the conveying speed of the material web.

The invention is based on the recognition that the embossing as such can not be detected with sufficient accuracy by conventional sensors such as cameras, light barriers and the like at the usual, high speeds with which the material web is transported. This is especially true for complex or large imprints. In this respect, a marking is attached to the material web together or synchronously with the embossing, which can be detected in a simple manner at high speeds. In particular, corresponding markings allow the use of simpler sensors.

In a preferred embodiment of the method according to the invention it is provided that the material web is preferably provided for each blank with a print mark and a preferably decorative element, wherein the relative position of the imprints and the embossments to each other by comparing the relative position of the print marks and markings is determined. It is therefore provided that the printing of each blank contains on the one hand a print mark and on the other hand a preferably decorative element. Of course, it may also be that the element preferably contains information to the consumer.

In practice, it is preferably provided that the prints and embossings are applied in such a way that each blank has a print and an embossing. In addition, the imprinting and embossing are preferably applied in a portion of the blank visible on a pack of cigarettes for the consumer. In a preferred application of the invention, the imprints and imprints are applied to a material web for the production of collars for packs for cigarettes, such that each collar has a print in a visible area for the consumer and a full area embossing of the visible area preferably surrounding the imprint in particular in a region of the collar which protrudes from a box part of a hinge-lid pack.

Another special feature may consist in that the marking is attached by means of the embossing device, in particular a pair of embossing rollers. The marking may be in the form of an embossing, a punching, a grooving, a cut, a perforation or a machining of the surface of the material web or the like.

Alternatively or additionally, the marking may be applied as a (separate) print mark, preferably by means of a printing device, preferably synchronously with the embossing by the embossing device, in particular in a region of the material web or of the blank which has no embossing.

Further details and embodiments of the method according to the invention will become apparent from the dependent claims, moreover, the following description and the drawings.

An apparatus for solving the above-mentioned problem has the features of claim 11. It is therefore provided that in synchronism with the embossing in each case a mark on the material web is attachable, wherein preferably independent sensors for detecting the imprints and the markings are provided and wherein a control device for comparing the relative position of the imprints and markings is provided to each other and wherein means The control unit, if necessary, an adaptation of the relative position of the imprints and imprints is feasible, preferably by appropriate change in the conveying speed of the web.

As in the method according to the invention, it is provided that the material web is provided for each blank with a print mark and a preferably decorative element, and that the relative position of the imprints and the embossments to each other by comparing the relative position of the print marks and markings to each other by means of the control unit.

Another special feature may be that the embossing is applied upstream of the cutting device, preferably in the area of a device for handling reels with the continuous material web. Accordingly, it is proposed to make the embossing in advance of the actual packaging machine. This has the advantage that the already limited space in the packaging machine is not required for the embossing device.

Alternatively it can be provided that the embossing is applied immediately upstream of the cutting device, preferably in the region of a device for handling blanks for collars of a pack for cigarettes. In this case, it can also be provided that the embossing device and the cutting device are coupled to each other in a gear.

Preferably, the sensor for detecting the print marks and the sensor for detecting the marks should be arranged at a small spatial distance from each other. In this way, a possible elongation of the material web, a compression of the material web during embossing or environmental changes in the length of the material web to the measurement results can be minimized.

Further details and embodiments of the device according to the invention will become apparent from the dependent claims, moreover, the following description and the drawings.

Preferred embodiments of the invention are explained below with reference to the drawing. In this show:

1 a pack of cigarettes with lid open in a spatial representation,

2 a blank for a collar of the package,

3 an alternative blank for a collar of the package,

4 a schematic representation of the examination of a material web on existing markings,

5 a vertical section through a material web with a marker,

6 a vertical section through a material web with an alternative marking,

7 a vertical section through a material web with an alternative marking,

8th a plan view of the web according to 5 .

9 a plan view of the web according to 6 .

10 a plan view of the web according to 7 .

11 a plan view of a variant of the material web according to 5 .

12 a schematic side view of an apparatus for embossing a material web for collar,

13 a top view of an embossed material web as well as on an isolated from the material web collar,

14 a plan view of an alternative embossed material web as well as on an isolated from the material web collar, and

15 a schematic side view of an alternative device for embossing a material web for collar.

The invention is based on the example of a pack 10 for cigarettes of the Hinge-Lid type. The package 10 consists of the components box part 11 , Lid 12 and collar 13 ,

The package 10 has a large front and an opposite back, through a box front wall 14 and a lid front wall 15 or a box back wall 16 and a lid rear wall 17 be formed. Further, the pack has 10 two opposite narrow sides, which connect the front wall and the rear wall with each other. These narrow sides are made by box sidewalls 18 and lid sidewalls 19 educated. Furthermore, the pack has 10 over a lid end wall 20 and a box bottom wall 21 ,

The collar 13 is like in Hinge-lid packs usual inside the box part 11 arranged and stands out of the open top box part 11 out. In the closed position of the lid 12 becomes the collar 13 includes of this. The collar 12 extends in the area of box front wall 14 and box side walls 18 , In the area of the box rear wall 16 is not a collar 13 arranged. Accordingly, the collar 13 through a collar front wall 22 and collar sidewalls 23 formed along corresponding walls of the box part 11 extend.

cover 12 and box part 11 are in the range of a line joint 24 pivotally connected to each other. The line joint 24 extends in the area of the back of the pack 10 namely, between the box back wall 16 and lid rear wall 17 ,

The box part 11 serves as a receiving space for a package contents, namely in the present case for a cigarette block 25 , At the cigarette block 25 it is a group of cigarettes that are placed in a common wrapper or innerliner 26 is shrouded.

Another special feature of the embodiment is that it is in the pack 10 is an octagonal pack, so a pack of eight upright edges at the front, back and narrow sides. Accordingly, in the transition from the front to the narrow sides or in the transition from the back to the narrow sides oblique edges are formed, whereby box part 11 , Lid 12 and collar 13 corresponding box inclined walls 27 , Lid inclined walls 28 and collar sloping walls 29 exhibit.

It is understood that the pack 10 may also have other planforms, in particular a rectangular in plan shape, in which then the inclined walls 27 . 28 . 29 missing and the packing edges are formed at right angles. Furthermore, the pack can 10 Of course, a larger number of bevels 27 . 28 . 29 exhibit.

A special feature of the pack 10 is that the collar 13 an imprint 30 as well as a preferably decorative element 31 has, wherein the element 31 Part of an imprint of the collar 13 is.

The imprint 30 preferably extends over the entire surface over a large part of the collar 13 namely, as shown in the embodiments, over at least the area of the collar visible to the consumer 13 that is above a closing edge 59 of the box part 11 extends. Also the element 31 is arranged in this area. The imprint 30 can be designed as a particular regular pattern. Also conceivable, however, are all other forms of embossing, such as grooves, raised areas, etc.

In the embodiments shown, the embossing extends 30 in the area of the collar front wall 22 , the subsequent collar slant walls 29 , the adjoining collar sidewalls 23 and the adjoining collar inclined walls 29 , It is understood that the imprint 30 Of course, only one or more walls of the collar 13 can extend. In addition, the embossing need not be provided over the entire visible area, although this is the preferred solution.

Also the element 31 located in the area of the collar front wall 22 , Of course, an arrangement on one of the other walls of the collar is also conceivable 13 or the arrangement of several elements 31 on one or more walls.

In all embodiments, the element 31 from the imprint 30 surround. Preferably, the embossment is adjacent 30 but not directly to the element 31 but it ends in a small, preferably uniform distance from this, so that virtually a preferably narrow, in particular circumferential edge around the element 31 is formed. But there are also cases conceivable, for example, in a not full-surface imprinting 30 in which the element 31 only partially or not at all 30 is surrounded. It is also conceivable that the coinage 30 to emphasize the element 31 is used, in which the embossment is at least partially in the area of the element 31 extends. In extreme cases, embossing 30 and element 31 also coincide, so that, for example, a raised area by the embossing 30 is formed, in whose area is also the element 31 located.

The collars are made 13 by moving from a continuous material web 32 individual blanks 33 preferably be separated without waste. Preferably, the material web 32 from Suppliers already supplied with a printing, ie the web 32 is at predetermined intervals with the element 31 provided, the distance between two adjacent elements 31 on the material web 32 the length of a blank 33 equivalent.

Preferably, in the range of a packaging machine for cigarettes, the material web 32 with the imprint 30 Mistake. The imprint 30 is preferably by means of an embossing device 34 , in particular with a pair of embossing rollers 35 , appropriate. The embossing device 34 or the embossing rollers 35 can thereby according to the aforementioned WO 2007/059820 A1 be set up and operated. For the purposes of full disclosure, therefore, reference is made to this publication by the Applicant and the content thereof is fully incorporated into this application.

The embossing device 34 or preferably the embossing rollers 35 are such that a substantially full-surface imprint 30 at the blanks 33 that is attached by an unembossed area 36 is interrupted. The unembossed area 36 serves to correct the position of the embossing 30 at the cutting 33 , as the unembossed area 36 a change in the web speed of the web 32 allowed, since or during the embossing rollers 35 then they are not in engagement with each other. Regarding the details will turn to the WO 2007/059820 A1 directed.

A peculiarity is that along with each coinage 30 an associated mark 37 on the material web 32 is attached. The mark 37 is at a predetermined distance or in a predetermined relative position for embossing 30 on the material web 32 appropriate. The mark 37 later becomes the determination of the relative position of embossing 30 and element 31 used.

It is conceivable, on the one hand, that the marking 37 as a print mark 38 on the material web 32 is attached. This can be synchronous with the attachment of the embossing 30 done to a constant relative position of mark 37 and imprinting 30 to ensure.

Alternatively, it is preferably conceivable that the mark 37 like the imprint 30 through the embossing device 34 or embossing rolls 35 or similar organs. It is conceivable, for example, a punching 39 passing through the embossing rollers 35 is attached. Other alternative forms of markings 37 will be described below.

The adjustment of the relative position of element 31 and imprinting 30 takes place in a first variant as follows: The material web 32 for blanks 33 or collar 13 is from a reel 40 pulled off and over pulleys 41 through a railway store 42 guided. After that, the material web 32 in the region of a preferably horizontal transport path through the embossing device 34 or the embossing rollers 35 passed through and at intervals with the embossing 30 Mistake. After that, with the help of two sensors 43 . 44 the location of the element 31 on the one hand and the location of the coinage 30 determined on the other hand and determines the relative position thereof via a control device, not shown. Here, a sensor is used 43 to capture the elements 31 and a sensor 44 for recording the markings 37 , In case of misalignment of the imprints 30 and elements 31 These may preferably be as in the WO 2007/059820 A1 be compensated described. After that, the material web 32 again via other pulleys 41 as well as another railway store 42 in the area of a cutting device 45 led, where the blanks 33 from the material web 32 be cut out.

In this variant, the embossing 30 mounted outside the actual packaging machine or a collar apparatus, namely preferably in the area of the so-called Bobinenbocks.

For transporting the material web 32 along the transport route to the cutting device 45 are preferred rollers in different places 46 arranged. Further, another pair of sensors is used 47 . 48 for the correct performance of cuts between the individual blanks 33 in the material web 32 , The separating cut can by means of at least one of the two sensors 47 . 48 by the mark 37 and / or the print mark 49 respectively.

It is understood that the guidance of the web 32 over the pulleys and the arrangement of rail stores 42 can be customized according to individual requirements. For example, the method described above includes a collar 13 or cut 33 as he in 3 is shown.

Alternatively, instead of directly capturing the element 31 also the position of a print mark 49 be recorded. An associated collar 13 is exemplary in 2 shown. The print mark 49 is preferably together with the element 31 as printing already finished on the material web 32 attached when it arrives at the place of processing. print mark 49 and element 31 are like imprinting 30 and mark 37 in a predetermined distance or in a predetermined relative position to each other arranged. In 13 is the corresponding procedure for this variant again using a material web 32 shown.

Another alternative, as already described, is that instead of punching 39 as a marker 37 a print mark 38 is provided, which together with the coinage 30 is printed. 12 shows a suitable printing device 50 that is immediately in front of the embossing device 34 is arranged to coincide with the embossing 30 one print mark each 38 to apply, so embossing 30 and on-site printed mark 38 are arranged at a predetermined distance from each other. In 14 this procedure is analogous to the variant of 13 shown. Preferably, the print mark becomes 38 in the unembossed area 36 printed.

15 shows a further variant, in which, in contrast to the embodiment according to 15 the imprint 30 is not mounted in the area of the Bobinenbocks, but in the area of the cutting device 45 So in the area of the collar apparatus. Following a pair of feed rollers 46 is the embossing device 34 or are the embossing rollers 35 arranged. Immediately behind are the sensors 44 . 43 and then again immediately follows the cutter 45 , A special feature is that the embossing device 34 and the cutter 45 through a common transmission 51 coupled together.

4 shows some conceivable variants of the attachment of the mark 37 , In addition to the attachment of a print mark 38 as a marker 37 by means of a printing device 50 ( 12 ) is in particular the attachment of the mark 37 by means of the embossing device 34 or the embossing rollers 35 into consideration. Conceivable, for example, from the embossing rollers 35 on the material web 32 applied material deformations, such as notches 52 , Creases or punches 39 , The embossing rollers 35 bring the markings 37 at the top of the web 32 in the range of a printing ink layer 53 at. These can be done by means of the sensor 43 be easily recognized, as in 4 shown schematically. It is conceivable in particular the assignment of a tab 54 , for example, by the punching 39 can be formed by means of a fixed switch 55 at the material web 32 or the tab 54 is moved past. In this way, for example, a hole 56 in the material web 32 be formed. Alternatively, the hole 56 also from the material web 32 be punched out.

5 to 11 show more variants of markings 37 , which also by means of the embossing device 34 on the material web 32 can be attached. 5 . 8th and 11 show an area 57 that by either smoothing the top of the web 32 as reflecting surface ( 8th ) or as by roughened surface ( 11 ) is trained. In addition, the area 57 opposite the material web 32 Incidentally, as shown slightly increased, which also by corresponding embossing of the web 32 can be achieved.

6 and 9 show a break line 58 , which also by corresponding embossing of the material web 32 can be formed.

7 and 10 show a hole 56 in the material web 32 which can be formed by punching.

As sensors 43 In particular, simple transmitted light barriers, triangulation barriers, reflection light sensors or gloss sensors come into question.

LIST OF REFERENCE NUMBERS

10

pack

11

box part

12

cover

13

collar

14

Box front wall

15

Lid front wall

16

Box rear wall

17

Lid rear wall

18

Box side wall

19

Lid sidewall

20

Lid front wall

21

Box bottom-wall

22

Collar front wall

23

Collar side walls

24

line joint

25

cigarette block

26

inner liner

27

Box-scaling wall

28

Cover-scaling wall

29

Collar scaling wall

30

embossing

31

Element (imprint)

32

web

33

cut

34

embosser

35

embossing rollers

36

unembossed area

37

mark

38

Print mark (marking)

39

Punching (marking)

40

reel

41

idler pulley

42

web store

43

Sensor (printing)

44

Sensor (marking)

45

cutter

46

advancement roller

47

sensor

48

sensor

49

Print mark (imprint)

50

print Setup

51

transmission

52

notch

53

Ink layer

54

flap

55

switch

56

hole

57

Area

58

breakline

59

closing edge

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2007/059820 A1 [0003, 0047, 0048, 0052]

Claims (16)

Method for producing blanks ( 33 ) especially for packs ( 10 ) for cigarettes, whereby a material web ( 32 ) for the production of individual blanks ( 33 ) at intervals with a print ( 31 . 49 ), and wherein the material web ( 32 ) by means of an embossing device ( 34 ) at intervals with an imprint ( 30 ) and where individual blanks ( 33 ) from the material web ( 32 ) by means of a cutting device ( 45 ), such that preferably each blank ( 33 ) at a predetermined position a print ( 31 . 49 ) and an imprint ( 30 ), characterized in that, together with the imprints ( 30 ) one mark each ( 37 ) on the material web ( 32 ) and that the relative position of the printings ( 31 . 49 ) and the imprints ( 30 ) to each other by comparing the relative position of the printings ( 31 . 49 ) and markings ( 37 ) is determined to each other, wherein the relative position of the printings ( 31 . 49 ) and imprints ( 30 ) is aligned with each other if necessary, in particular by a corresponding change in the conveying speed of the material web ( 32 ). Method according to claim 1, characterized in that the material web ( 32 ) for preferably each blank with a print mark ( 49 ) and a preferably decorative element ( 31 ), the relative position of the printings ( 31 . 49 ) and the imprints ( 30 ) to each other by comparing the relative position of the print marks ( 49 ) and markings ( 37 ) is determined to each other. Method according to claim 1, characterized in that the imprints ( 31 . 49 ) and imprints ( 30 ) are mounted such that each blank is printed ( 31 . 49 ) and an imprint ( 30 ) having. Method according to claim 1 or one of the further preceding claims, characterized in that the printing ( 31 ) and the imprint ( 30 ) in a region of the blank ( 33 ) attached to a package ( 10 ) is visible to the consumer for cigarettes. Method according to claim 1 or one of the further preceding claims, characterized in that the imprints ( 31 ) and imprints ( 30 ) on a material web ( 32 ) for the production of collars ( 13 ) for packs ( 10 ) for cigarettes, such that each collar ( 13 ) in a visible to the consumer area a print ( 31 ) and one the printing ( 31 ) preferably surrounding full-surface embossing ( 30 ) of the visible region, in particular in a region of the collar ( 13 ), which consists of a box part ( 12 ) stands out a Hinge-Lid-Packung. Method according to claim 1 or one of the further preceding claims, characterized in that the marking ( 32 ) by means of the embossing device ( 34 ), in particular a pair of embossing rollers ( 35 ) is attached. Method according to claim 6, characterized in that the marking ( 37 ) in the form of an embossing, a punching, a grooving, an incision, a perforation or a treatment of the surface of the material web ( 32 ) is attached. Method according to claim 1 or one of the further preceding claims 1 to 4, characterized in that the marking ( 37 ) as a (separate) print mark ( 38 ) preferably by means of a pressure device ( 50 ), preferably in synchronism with the embossing ( 30 ) by the embossing device ( 34 ), in particular in one area ( 36 ) of the material web ( 32 ) or the blank ( 33 ) of no coinage ( 30 ) having. Method according to claim 1 or one of the further preceding claims, characterized in that the material web ( 32 ) or each blank ( 33 ) an unembossed area ( 36 ), wherein an adaptation of the relative position of imprints ( 31 ) and imprints ( 30 ), while the material web ( 32 ) with the unembossed area ( 36 ) the embossing device ( 34 ) goes through. Method according to claim 1 or one of the further preceding claims, characterized in that the embossing ( 30 ) and the printing ( 31 ) on the blank ( 33 ), that the embossing ( 30 ) the printing ( 31 ) surrounds. Apparatus for producing blanks ( 33 ) especially for packs ( 10 ) for cigarettes, whereby a material web ( 32 ) for the production of the blanks ( 33 ) at intervals with a print ( 31 . 49 ), and wherein the device comprises an embossing device ( 34 ) for embossing ( 30 ) at intervals along the material web ( 32 ), and wherein the device comprises a cutting device ( 45 ) for separating individual blanks ( 33 ) from the material web ( 32 ), such that preferably each blank ( 33 ) at a predetermined position a print ( 31 . 49 ) and an imprint ( 30 ), characterized in that synchronously with the imprints ( 30 ) one mark each ( 37 ) on the material web ( 32 ), preferably independent sensors ( 43 . 44 ) for recording the imprints ( 31 . 49 ) and the markings ( 37 ) are provided and wherein a control device for comparing the Relative position of the prints ( 31 . 49 ) and markings ( 37 ) is provided to each other and wherein by means of the control unit, if necessary, an adjustment of the relative position of the imprints ( 31 . 49 ) and imprints ( 30 ) is feasible, preferably by appropriate change in the conveying speed of the material web ( 32 ). Device according to claim 11, characterized in that the material web ( 32 ) for preferably each blank ( 33 ) with a print mark ( 49 ) and a preferably decorative element ( 31 ), and that the relative position of the printings ( 31 . 49 ) and the imprints ( 30 ) to each other by comparing the relative position of the print marks ( 49 ) and markings ( 37 ) to each other by means of the control unit. Device according to claim 11 or 12, characterized in that the embossing ( 30 ) upstream of the cutter ( 45 ), in particular in the field of a device for handling bobbins ( 40 ) with the continuous material web ( 32 ). Device according to claim 11 or 12, characterized in that the embossing ( 30 ) immediately upstream of the cutting device ( 45 ), in particular in the field of blanks handling equipment ( 33 ) for collar ( 13 ) of a pack ( 10 ) for cigarettes. Apparatus according to claim 14, characterized in that the embossing device ( 34 ) and the cutting device ( 45 ) are geared together. Device according to claim 11 or one of the further preceding claims, characterized in that the sensor ( 43 ) for detecting the print marks ( 49 ) and the sensor ( 44 ) for detecting the markings ( 37 ) are arranged at a small spatial distance from each other.

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