EP3521185B1 - Method for controlling the feed rate of a film web in a packaging machine - Google Patents

Method for controlling the feed rate of a film web in a packaging machine Download PDF

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Publication number
EP3521185B1
EP3521185B1 EP18155105.2A EP18155105A EP3521185B1 EP 3521185 B1 EP3521185 B1 EP 3521185B1 EP 18155105 A EP18155105 A EP 18155105A EP 3521185 B1 EP3521185 B1 EP 3521185B1
Authority
EP
European Patent Office
Prior art keywords
distance
station
cup
film web
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18155105.2A
Other languages
German (de)
French (fr)
Other versions
EP3521185A1 (en
Inventor
Jörg Knüppel
Thomas Haller
Sergei Schädlich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uhlmann Pac Systeme GmbH and Co KG
Original Assignee
Uhlmann Pac Systeme GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uhlmann Pac Systeme GmbH and Co KG filed Critical Uhlmann Pac Systeme GmbH and Co KG
Priority to EP18155105.2A priority Critical patent/EP3521185B1/en
Priority to US16/252,017 priority patent/US10822125B2/en
Priority to CN201910108142.2A priority patent/CN110116834B/en
Publication of EP3521185A1 publication Critical patent/EP3521185A1/en
Application granted granted Critical
Publication of EP3521185B1 publication Critical patent/EP3521185B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12Feeding webs from rolls
    • B65B41/14Feeding webs from rolls by grippers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12Feeding webs from rolls
    • B65B41/16Feeding webs from rolls by rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18Registering sheets, blanks, or webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B47/00Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/02Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved with means for heating the material prior to forming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00Automatic control, checking, warning, or safety devices
    • B65B57/02Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
    • B65B57/04Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages and operating to control, or to stop, the feed of such material, containers, or packages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
    • B65B61/025Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging for applying, e.g. printing, code or date marks on material prior to packaging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B9/045Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for single articles, e.g. tablets

Definitions

  • the present invention relates to a method for regulating the feed of a film web in a packaging machine.
  • Packaging machines are used, for example, to produce blister packs for pharmaceuticals or food packaging.
  • Packaging machines of this type usually comprise workstations arranged one after the other in a production or conveying direction, including a forming, a filling, a sealing and a punching station. In these, bowls are formed into a film web, the bowls are filled with products and sealed with a cover film, and finally individual packages are cut or punched out of the film web.
  • One aim of such packaging machines is to produce a film strip that is as homogeneous as possible, into which individual cup arrangements are introduced at regular intervals from one another or in predetermined patterns.
  • This has several advantages.
  • this ensures that bowls in the film web are reliably accommodated in recesses in the sealing tools and that the bowls and the products contained therein are not squeezed between the sealing tools.
  • the area of the punching station on the other hand, it is desirable to produce as little waste or scrap as possible when punching out individual packages from the film web and to reduce the film consumption.
  • Irregularities in the position of the cup arrangements of the film web mean that a web of greater tolerance has to be provided around the cup arrangements so as not to damage the cups and products when punching out. Tolerances in the advancing movement of the film web or a shrinkage of the film web that deviates from the previously calculated values can lead to such irregularities or deviations in the position of the cup arrangements of the film web.
  • the EP 0 569 933 A1 therefore proposes a packaging machine in which the individual workstations can be moved in and against the production direction in order to align them relative to the cups in the film web.
  • detecting the position of the bowls and moving each individual work station involves a great deal of control effort, which in turn is prone to errors.
  • the second distance between two cup arrangements of successive form cycles always corresponds to the first distance between two cup arrangements of the same form cycle, even if unexpected or unforeseen deviations occur during the production process, for example due to changing environmental parameters.
  • the cup arrangements are arranged at regular intervals both within a form cycle and between successive form cycles. Since there is an immediate reaction to deviations that arise between the first and the second distance, the webs to be provided around the cup arrangements can be designed with small tolerances, as a result of which the film requirement is reduced. In addition, precise sealing of the film web and precise punching out of individual packaging are possible.
  • a targeted displacement of the film web can take place in order to bring the film web into line with the printing on the top film during sealing.
  • the first and the second distance are preferably defined parallel to the conveying direction. This enables the method according to the invention to be used reliably even if successive cups or rows of naps are offset in relation to one another in a width direction transverse to the conveying direction of the film web.
  • the first, the second, the third and the fourth element are designed as a bowl of the respective bowl arrangement or as a reference mark of the respective bowl arrangement.
  • the advantage of designing the first, second, third and fourth elements as a cup is that no additional elements have to be provided in the film web in order to enable the method according to the invention.
  • bowls can be detected reliably and automatically in a simple manner, so that the susceptibility to errors of the method is reduced. If the first, the second, the third and the fourth element are each designed as a reference mark, this offers the advantage that the reference marks can be designed independently of the geometry and arrangement of the cups in such a way that they can be reliably detected.
  • Reference marks are usually introduced into the film web together with the cups, so that the position of a reference mark is fixed relative to the cups of a cup arrangement.
  • the third and fourth elements are preferably each arranged in the corresponding cup arrangement at the same location. Because of the larger measuring distance, measuring deviations are less significant.
  • the third and the fourth element can each be designed as a cup and arranged directly one behind the other in the conveying direction.
  • the second distance is then to be determined between a last cup or a last row of cups of a leading cup arrangement of a first form cycle in the conveying direction and a first cup or first row of cups of a subsequent cup arrangement of a second form cycle following the first form cycle in the conveying direction.
  • the determination of the first distance is particularly simple if the determination of the first distance is preferably based on the geometry of the molding tool and the first distance is stored in a control device of the packaging machine. Since the first distance can be determined by the first and the second predetermined element, which in turn are introduced into the film web by the molding tool in one molding cycle, the first distance can also be predetermined on the basis of the geometry of the molding tool. This offers the advantage that the first distance does not have to be recorded separately, but can simply be called up by the control device for regulating the feed length. For different molding tools, the respective first distance can be stored in the control device, so that the correct first distance for controlling the feed length is always available depending on the molding tool used.
  • the method comprises determining the first distance downstream of the forming station, preferably at the same location and / or preferably in the same way as the second distance is also determined. This makes it possible to include changes in the first distance during the manufacturing process in the regulation of the feed length. Such changes are quite common and are caused, for example, by shrinkage of the film web due to heating and cooling.
  • the determination of the second distance preferably includes the detection of the third and fourth elements and the calculation of the second distance from the time interval between the third and fourth elements and a feed speed of the film web by means of the control device.
  • the course of the feed speed is already known to the control device, so that no further data are required to calculate the second distance.
  • the second distance can thus be determined using relatively simple and inexpensive means.
  • the third and fourth elements are preferably detected upstream of the punching station, more preferably between the sealing station and the punching station, and particularly preferably immediately before or in the punching station.
  • This offers the advantage that all deviations occurring in the manufacturing process up to the punching station are included in the regulation of the feed length. Since in particular the punching out of individual packages from the film web must be very precise in order to save film material, it is advantageous if the feed length is set in such a way that the most exact possible position of the cup arrangements is ensured in the area of the punching station.
  • the packaging machine preferably comprises at least one sensor for detecting the third and fourth elements. Since sensors of this type, which in particular detect the passage of individual bowls or reference marks, can be easily integrated into a packaging machine, an inexpensive possibility is created to determine the second distance.
  • the method comprises determining a deviation of the determined second distance from the first distance by means of the control device and regulating the first feed length as a function of the determined deviation between the first and the second distance. This is particularly advantageous since the deviation determined correlates directly with the change in the feed length to be made.
  • the method preferably comprises moving the film web in the area of the sealing station by means of second feed means and forming a first sag memory between the forming station and the sealing station, the sealing station preferably comprising a pair of sealing rollers.
  • Sealing rollers are particularly well suited for sealing an upper film onto the film web provided with cup arrangements. Sealing rollers are usually operated continuously.
  • the first sag memory is therefore formed in a transition area between the clocked movement of the film web in the area of the forming station and the continuous movement of the film web in the area of the sealing station. It can also be necessary for different transport lengths with clocked movement in the area of the sealing station and the punching station.
  • first feed means are arranged upstream of the first sag memory in order to enable the clocked movement of the film web in the region of the forming station.
  • the first feed means preferably comprise tongs or feed rollers which move the film web in the conveying direction.
  • Fig. 1 shows schematically and by way of example a packaging machine for which the inventive method for regulating the feed of a film web in the packaging machine is suitable.
  • the packaging machine 1 comprises a plurality of workstations which are traversed by a film web 2 in a conveying direction F.
  • upstream in the following means opposite to the conveying direction F and “downstream” in the conveying direction F.
  • the film web 2 is initially rolled up on a first supply roll 4 and is first fed from this to a forming station 6.
  • the film web 2 is preferably heated by heating means 8.
  • the heating means 8 can be omitted.
  • the coolants 12 can preferably also be integrated into the molding device 10.
  • First feed means 14 move the film web 2 in the area of the forming station in a clocked manner in the conveying direction F.
  • the first feed means 14 can be formed by one or more feed rollers.
  • tongs which grip the film web 2 at the edge and pull in the conveying direction F.
  • the products to be packaged are filled into the wells of the film web 2.
  • An upper film 18 for sealing the wells of the film web 2 is mounted on a second supply roll 20. Means 21 for printing and stretching the top film 18 can be provided. Downstream of the filling station 16, the top film 18 is fed to the film web 2 in such a way that it covers the wells filled with products and is moved together with the film web 2 in the conveying direction F.
  • the top film 18 is sealed with the film web 2 in a sealing station 22.
  • a sealing device 24 is provided, which can comprise sealing plates or sealing rollers.
  • second coolants 26 can be provided for cooling the material web 28 consisting of the upper film 18 and the film web 2.
  • the coolants 26 can also be integrated in the sealing device 24.
  • the film web 2 provided with cups will continue to be referred to in the following even if it is already filled with products, is sealed with an upper film and forms a unit with this.
  • Second feed means 30 move the film web 2 in the area of the sealing station 22 in the conveying direction F.
  • the second feed means 30 can also comprise feed rollers or pliers. If the sealing device 24 is formed by sealing rollers, the film web 2 is moved continuously in the conveying direction F in the area of the sealing station 22. In order to enable the transition between the clocked movement of the film web 2 in the area of the forming station 6 and the continuous movement of the film web 2 in the area of the sealing station 22, a first sag memory 32 is provided between the forming station 6 and the sealing station 22. If the sealing device 24 comprises sealing plates, the film web 2 is moved in the area of the sealing station 22 in a clocked manner in the conveying direction F. In this case, the first sag memory 32 can be omitted. The first sag memory 32 can also be provided as a buffer between two different cycle speeds of the forming and sealing station 6, 22.
  • individual packs are punched out of the film web 2 in a punching station 34.
  • Third feed means 36 move the film web 2, preferably clocked, in the area of the punching station 34 in the conveying direction F. Upstream of the punching station 34, means 38 for embossing and perforating the film web 2 or material web 28 can also be provided. If the film web 2 is continuously moved in the area of the sealing station 22 and moved clocked in the area of the punching station 34, a second sag memory 40 is provided between these stations. It may also be necessary with clocked movement in the area of the sealing station 22 if there are different transport lengths.
  • the packaging machine 1 usually also includes means for detecting cups in the film web 2 and for detecting products in the cups of the film web 2 for process control and quality assurance.
  • means for detecting cups are arranged downstream of the forming station 6.
  • packaging machine 1 serves to illustrate the method according to the invention.
  • the specific arrangement of the individual stations or devices as well as their design and mode of operation are known to the person skilled in the art and can be adapted to the respective requirements.
  • Fig. 2 a section of the film web 2 is shown in a top view as it is downstream of the forming station 6 and in front of the punching station 34. This means that products can preferably already be located in the cups of the film web 2 and the film web 2 can be sealed with the top film 18, even if these are not shown for better illustration.
  • a first bowl arrangement 42, a second bowl arrangement 44, a third bowl arrangement 46, a fourth bowl arrangement 48 and a fifth bowl arrangement 50 are introduced into the film web 2 in the conveying direction F.
  • a width direction B which extends transversely to the conveying direction F in the plane of the film web 2
  • a plurality of rows of cup arrangements can be introduced into the film web 2 next to one another.
  • two rows of cup arrangements in the width direction B are side by side in the Introduced film web 2, the second row having the cup arrangements 42a, 44a, 46a, 48a and 50a.
  • each cup arrangement 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a is shown with a border. It is also conceivable that the border illustrates the contour of the (blister) packaging to be punched out in the punching station 34.
  • Each of the cup arrangements 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a comprises at least one cup 52, preferably a multiplicity of cups 52.
  • the cups 52 were introduced into the film web 2 by means of the shaping device 10 and serve the inclusion of the products to be packaged.
  • each bowl arrangement in the conveying direction F comprises five rows of bowls, one behind the other, each with five bowls. It is understood that each cup arrangement can comprise any number of cups in freely selectable arrangements.
  • Cup arrangements 42, 44, 46, 48, 50 shown in the conveying direction F are divided into areas which are characterized by n, n + 1 and n + 2.
  • Each area n, n + 1, n + 2 comprises the cup arrangements which were introduced into the film web 2 in a form cycle n, n + 1, n + 2, n + i of the forming station 6.
  • n, n + 1, n + 2 comprises the cup arrangements which were introduced into the film web 2 in a form cycle n, n + 1, n + 2, n + i of the forming station 6.
  • the first cup arrangement 42, the second cup arrangement 44 and the cup arrangements 42a and 44a were introduced into the film web 2.
  • n + 1 of the molding station 6 following the first molding cycle n the third cup arrangement 46, the fourth cup arrangement 48 and the cup arrangements 46a and 48a were introduced into the film web 2.
  • Each cup arrangement further comprises at least one predetermined element which is used to regulate the advance of the film web.
  • a predetermined one Element can be formed by a bowl or a reference mark.
  • the first bowl arrangement 42 comprises a first predetermined element 54
  • the second bowl arrangement 44 following in the conveying direction F comprises a second predetermined element 56.
  • the first and the second predetermined elements 54, 56 are always two successive bowl arrangements in the conveying direction F of the same form cycle assigned. If a form cycle comprises, for example, three cup arrangements arranged one behind the other in the conveying direction F, the first predetermined element 54 can be assigned to the cup arrangement advancing in the conveying direction F and the second predetermined element 56 can be assigned to the cup arrangement following the preceding cup arrangement.
  • the first predetermined element 54 can also be assigned to the bowl arrangement of three bowl arrangements in the conveying direction F, so that the second predetermined element 56 is assigned to the third bowl arrangement that follows.
  • the distance between the first predetermined element 54 and the second predetermined element 56 is referred to as the first distance D 1 .
  • the first distance D 1 thus represents the distance between two cup arrangements of the same form cycle.
  • a cup arrangement of a first form cycle which is followed in the conveying direction F by a cup arrangement of a subsequent form cycle, comprises a third predetermined element 58.
  • the cup arrangement of the subsequent form cycle comprises a fourth predetermined element 60.
  • the second cup arrangement 44 thus comprises the first form cycle n
  • the third predetermined element 58 and the third bowl arrangement 46 of the second form cycle n + 1 comprise the fourth predetermined element 60, the third bowl arrangement 46 immediately following the second bowl arrangement 44 in the conveying direction F.
  • the distance between the third predetermined element 58 and the fourth predetermined element 60 is referred to as the second distance D 2 .
  • the second distance D 2 thus represents the distance between two cup arrangements of consecutive form cycles.
  • the first and the third predetermined element 54, 58 correspond with respect to their relative arrangement in the conveying direction F within the respective cup arrangement 42, 44. That is to say that the first predetermined element 54 occupies the same position at least in the conveying direction F within the first cup arrangement 42 , like the third predetermined element 58 within the second cup arrangement 44.
  • the relative position of the first predetermined element 54 within the first is preferably correct Cup arrangement 42 corresponds to the relative position of the second predetermined element 56 within the second cup arrangement 44 both in the conveying direction F and in the width direction B.
  • the second and fourth predetermined elements 56, 60 correspond in terms of their relative arrangement in the conveying direction F within the respective cup arrangement 44, 46. That is to say that the second predetermined element 56 at least in the conveying direction F within the second cup arrangement 44 occupies the same position as that fourth predetermined element 60 within the third cup arrangement 46.
  • the relative position of the second predetermined element 56 within the second cup arrangement 44 preferably coincides with the relative position of the fourth predetermined element 60 within the third cup arrangement 46 both in the conveying direction F and in the width direction B.
  • a bowl arrangement as in the exemplary embodiment Fig. 2 At least two cups 52 arranged one behind the other in the conveying direction F or at least two rows of cups arranged one behind the other in the conveying direction F and extending in the width direction B, a distance between two cups 52 of a cup arrangement arranged one behind the other in the conveying direction F is referred to as a third distance D 3 .
  • the first distance D 1 , the second distance D 2 and the third distance D 3 are preferably defined parallel to the conveying direction F.
  • the first distance D 1 , the second distance D 2 and the third distance D 3 are consequently to be determined in the conveying direction F, even if the predetermined elements, between which the respective distance is to be determined, are offset from one another in the width direction B.
  • the first, the second, the third and the fourth predetermined element 54, 56, 58, 60 can each be designed as a cup 52 of a cup arrangement 42, 44, 46, 48.
  • the cups 52 formed in a film web 2 can be detected well by optical or mechanical means, so that a distance between two predetermined cups 52 can be determined in a simple manner. For example, falling and / or rising flanks of the bowls can be measured. The measurement can be carried out by means of light barriers operating perpendicular to the direction of transport, which detect the bowls during the passage, by cameras which detect the contour of the bowls from below, or by many other sensors.
  • the first, the second, the third and the fourth element 54, 56, 58, 60 can also be designed as a reference mark.
  • Such reference marks are preferably introduced into the film web 2 together with the cups 52 in the forming station 6, so that their position relative to the cups 52 is predetermined.
  • Reference marks can be formed, for example, by embossing in the film web 2, through openings in the film web 2 or by printing.
  • Reference marks are particularly suitable as predetermined elements 54, 56, 58, 60 if the cup geometry makes it difficult to grasp the cups 52 or because of the conditions within the packaging machine 1, e.g. the accessibility, it is not possible or difficult to grasp the cups 52.
  • FIG. 3 A sixth, seventh, eighth and ninth cup arrangement 62, 64, 66, 68 are shown by way of example in order to illustrate different possibilities for the formation of the predetermined elements 54, 56, 58, 60 as well as different relative arrangements of the same.
  • the sixth and the seventh bowl arrangement 62, 64 are arranged one behind the other in the conveying direction F, the sixth bowl arrangement 62 leading ahead.
  • the eighth and the ninth cup arrangement 66, 68 are arranged one behind the other in the conveying direction F, the eighth cup arrangement 66 leading ahead.
  • the first and third predetermined elements 54, 58 and the second and fourth predetermined elements 56, 60 each correspond in terms of their relative position within the cup arrangement, at least in the conveying direction F.
  • the distances D, D 'and D "shown can correspond to both the first distance D 1 and the second distance D 2.
  • the sixth cup arrangement 62 corresponds, for example, to the first cup arrangement 42 and the seventh cup arrangement 64 to the second cup arrangement 44 Fig. 2 , the distances D, D 'and D "shown indicate different possibilities of the first distance D 1. If, however, the sixth cup arrangement 62 corresponds to the second cup arrangement 44 and the seventh cup arrangement 64 to the third cup arrangement 46, the distances D, D' and D "different possibilities of the second distance D 2 .
  • the predetermined elements 54, 56, 58, 60 are formed as a bowl 52, it is possible for the first or the third predetermined element 54, 58 of the sixth bowl arrangement 62 and the second or the fourth predetermined element 56, 60 of the seventh Cup arrangement 64 are arranged one behind the other in the conveying direction F.
  • the first or third predetermined element 54, 58 is a last bowl 52 of the sixth bowl arrangement 62 in the conveying direction F, and the second or fourth predetermined element 60 is a first bowl 52 of the seventh bowl arrangement 64.
  • the distance can also be formed between any other cups of the respective cup arrangements.
  • the distance D ' can be provided between cups 52, which are formed foremost in the conveying direction F in the respective cup arrangement.
  • the distance D ' is formed between a first or third predetermined element 54', 58 ', which is formed by a cup 52 of the front row in the conveying direction F of the sixth cup arrangement 62, and a second or fourth predetermined element 56 ', 60', which is formed by a bowl 52 of the front row in the conveying direction F of the seventh bowl arrangement 64.
  • the second and third elements are identical.
  • predetermined elements 54 ′′, 56 ′′, 58 ′′, 60 ′′ are shown on the basis of the eighth and ninth bowl arrangements 66 and 68, which are designed as reference marks.
  • the film web 2 is first arranged in the area of the forming station 6 by means of the first feed means 14.
  • the molding station 6 at least the first and the second cup arrangement 42, 44, each with at least one cup 52, are introduced into the film web 2 in a molding cycle n of the molding station 6.
  • two to six cup arrangements are introduced into the film web 2 in a form cycle, each cup arrangement comprising a plurality of cups which are arranged in at least one row.
  • the first cup arrangement 42 leads the second cup arrangement 44 in the conveying direction F of the packaging machine 1.
  • the first predetermined Element 54 and the second predetermined element 56 are assigned to two successive cup arrangements of the one form cycle and are preferably designed as cup 52. Their arrangement according to the example of the distance D is preferred Fig. 3 .
  • the first distance D 1 is predetermined by the geometry of the molding tool of the molding station 6. This means that the first distance D 1 can be determined on the basis of the geometry of the molding tool and can be stored in a control device (not shown) of the packaging machine 1. Due to the shrinkage of the film web 2, changes in the first distance D 1 can occur within the packaging machine 1 along the conveying direction F. In order to also detect these changes in the first distance D 1 or to use the first distance D 1 , which is decisive for the control of the packaging machine 1, for regulation, the first distance D 1 downstream of the forming station 6 can also be determined by sensors or cameras.
  • the film web 2 is moved by a feed length V between the first form cycle n and the second form cycle n + 1 following this moved in the direction of conveyance F.
  • the cup arrangements of the second form cycle n + 1 are then introduced into the film web 2.
  • the second distance D 2 is not equal to the first distance D 1 and an inhomogeneous film web is formed. In order to provide a film web 2 that is as homogeneous as possible, however, it is desirable that the second distance D 2 corresponds to the first distance D 1 .
  • the method therefore includes determining the first distance D 1 , determining the second distance D 2 and regulating the feed length V in such a way that the second distance D 2 determined corresponds to the first distance D 1 in subsequent form cycles n + i.
  • the first distance D 1 can be determined, for example, by calling up a value stored in the control device.
  • the determination of the second distance D 2 takes place downstream of the molding station 6 and preferably comprises the determination of the second distance D 2 by detecting the third and fourth predetermined elements 58, 60.
  • the detection of the third and fourth elements 58, 60 by sensors or Cameras are carried out which detect the passage of the third and fourth elements 58, 60.
  • the third and fourth elements 58, 60 are preferably detected upstream of the punching station 34, more preferably immediately upstream of the sealing station 22 or immediately upstream of the punching station 34.
  • the detection of the second distance D 2 after sealing in the sealing station 22 is most suitable on. These positions are particularly suitable for arranging corresponding means for detecting the predetermined elements.
  • the second distance D 2 is calculated, for example, from the time interval of the third and fourth elements 58, 60 and a feed speed of the film web 2 by means of the control device.
  • the time of passage of the third and fourth elements 58, 60 can also be recorded, the control device, which also controls a servo motor for driving the feed means, based on the data of the servo motor, the distance between the times of passage of the third and fourth elements 58, 60 determined.
  • the first distance D 1 can be determined, for example, by calling up a value stored in the control device.
  • the first distance D 1 is preferably also determined in a manner comparable to the second distance D 2 , the first and second elements 54, 56 taking the place of the third and fourth elements 58, 60.
  • control device can determine a deviation between the determined second distance D 2 and the first distance D 1 and regulate the first feed length V as a function of the determined deviation between the first and the second distance D 1 , D 2 .
  • the invention has so far been described with reference to a molding station 6, a filling station 16, a sealing station 22 and a punching station 34. However, there can also be more than one of these stations. In some embodiments, if the products are, for example, ampoules or vials, the sealing station 22 can be omitted because no top film 18 is required.
  • the invention has been described with a fixed molding station 6.
  • the movement of the film web 2 relative to the forming station 6 between the forming cycles is generated by a movement deviating from the usual movement.

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Description

Die vorliegende Erfindung betrifft ein Verfahren zum Regeln des Vorschubs einer Folienbahn in einer Verpackungsmaschine.The present invention relates to a method for regulating the feed of a film web in a packaging machine.

Verpackungsmaschinen werden beispielsweise zur Herstellung von Blisterverpackungen für Arzneimittel oder von Lebensmittelverpackungen verwendet. Üblicherweise umfassen derartige Verpackungsmaschinen in einer Produktions- oder Förderrichtung nacheinander angeordnete Arbeitsstationen, darunter eine Form-, eine Füll-, eine Siegel- und eine Stanzstation. In diesen werden Näpfe in eine Folienbahn geformt, die Näpfe mit Produkten gefüllt und mit einer Deckfolie versiegelt und schließlich einzelne Verpackungen aus der Folienbahn geschnitten bzw. gestanzt.Packaging machines are used, for example, to produce blister packs for pharmaceuticals or food packaging. Packaging machines of this type usually comprise workstations arranged one after the other in a production or conveying direction, including a forming, a filling, a sealing and a punching station. In these, bowls are formed into a film web, the bowls are filled with products and sealed with a cover film, and finally individual packages are cut or punched out of the film web.

Ein Ziel solcher Verpackungsmaschinen ist es, ein möglichst homogenes Folienband zu erzeugen, in das einzelne Napfanordnungen in regelmäßigen Abständen zueinander oder in vorbestimmten Mustern eingebracht sind. Dies hat verschiedene Vorteile. Im Bereich der Siegelstation wird dadurch gewährleistet, dass Näpfe in der Folienbahn zuverlässig in Ausnehmungen der Siegelwerkzeuge aufgenommen werden und ein Quetschen der Näpfe und der darin enthaltenen Produkte zwischen den Siegelwerkzeugen vermieden wird. Im Bereich der Stanzstation ist es hingegen wünschenswert, beim Ausstanzen einzelner Verpackungen aus der Folienbahn möglichst wenig Verschnitt bzw. Ausschuss zu erzeugen und den Folienverbrauch zu reduzieren. Unregelmäßigkeiten in der Lage der Napfanordnungen der Folienbahn führen dazu, dass um die Napfanordnungen herum ein Steg größerer Toleranz vorzusehen ist, um die Näpfe und Produkte beim Ausstanzen nicht zu beschädigen. Toleranzen in der Vorschubbewegung der Folienbahn oder eine Schrumpfung der Folienbahn, die von den zuvor berechneten Werten abweicht, können zu solchen Unregelmäßigkeiten oder Abweichungen der Lage der Napfanordnungen der Folienbahn führen.One aim of such packaging machines is to produce a film strip that is as homogeneous as possible, into which individual cup arrangements are introduced at regular intervals from one another or in predetermined patterns. This has several advantages. In the area of the sealing station, this ensures that bowls in the film web are reliably accommodated in recesses in the sealing tools and that the bowls and the products contained therein are not squeezed between the sealing tools. In the area of the punching station, on the other hand, it is desirable to produce as little waste or scrap as possible when punching out individual packages from the film web and to reduce the film consumption. Irregularities in the position of the cup arrangements of the film web mean that a web of greater tolerance has to be provided around the cup arrangements so as not to damage the cups and products when punching out. Tolerances in the advancing movement of the film web or a shrinkage of the film web that deviates from the previously calculated values can lead to such irregularities or deviations in the position of the cup arrangements of the film web.

Die EP 0 569 933 A1 schlägt deshalb eine Verpackungsmaschine vor, bei der die einzelnen Arbeitsstationen in und entgegen der Produktionsrichtung verschiebbar sind, um sie relativ zu den Näpfen in der Folienbahn auszurichten. Mit dem Erfassen der Lage der Näpfe und dem Verschieben jeder einzelnen Arbeitsstation ist jedoch ein hoher Steuerungsaufwand verbunden, der wiederum fehleranfällig ist.The EP 0 569 933 A1 therefore proposes a packaging machine in which the individual workstations can be moved in and against the production direction in order to align them relative to the cups in the film web. However, detecting the position of the bowls and moving each individual work station involves a great deal of control effort, which in turn is prone to errors.

Es ist eine Aufgabe der vorliegenden Erfindung, ein Verfahren bereitzustellen, mit dem ein Folienband mit homogener Napfverteilung zuverlässig erzeugbar ist.It is an object of the present invention to provide a method with which a film strip with a homogeneous cup distribution can be produced reliably.

Diese Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen des Verfahrens ergeben sich aus den abhängigen Unteransprüchen.This object is solved by the subject matter of claim 1. Advantageous embodiments of the method result from the dependent subclaims.

Erfindungsgemäß umfasst ein Verfahren zum Regeln des Vorschubs einer Folienbahn in einer Verpackungsmaschine, die eine Formstation, eine Siegelstation und eine Stanzstation umfasst, die folgenden Schritte:

  • Anordnen einer Folienbahn im Bereich der Formstation mittels erster Vorschubmittel;
  • Einbringen von mindestens einer ersten und einer zweiten Napfanordnung mit jeweils mindestens einem Napf in die Folienbahn in einem Formtakt der Formstation, wobei die erste Napfanordnung der zweiten Napfanordnung in einer Förderrichtung der Verpackungsmaschine voraneilt und ein Abstand zwischen einem ersten vorbestimmten Element der ersten Napfanordnung und einem zweiten vorbestimmten Element der zweiten Napfanordnung als ein erster Abstand bezeichnet ist;
  • getaktetes Bewegen der Folienbahn relativ zur Formstation zwischen einem ersten Formtakt und einem auf diesen folgenden zweiten Formtakt um eine Vorschublänge in der Förderrichtung, wobei ein Abstand zwischen einem dritten vorbestimmten Element einer in Förderrichtung voraneilenden Napfanordnung des ersten Formtakts und einem vierten vorbestimmten Element einer dieser Napfanordnung nachfolgenden Napfanordnung des zweiten Formtakts als ein zweiter Abstand bezeichnet ist, wobei das erste und das dritte vorbestimmte Element bezüglich ihrer relativen Anordnung in Förderrichtung innerhalb der jeweiligen Napfanordnung korrespondieren und das zweite und das vierte vorbestimmte Element bezüglich ihrer relativen Anordnung in Förderrichtung innerhalb der jeweiligen Napfanordnung korrespondieren;
  • Bestimmen des ersten Abstands;
  • Ermitteln des zweiten Abstands stromabwärts der Formstation; und
  • Regeln der Vorschublänge auf Basis des ermittelten ersten Abstands und zweiten Abstands derart, dass bei nachfolgenden Formtakten der ermittelte zweite Abstand dem ersten Abstand entspricht oder oder um ein definiertes Maß vom ersten Abstand abweicht.
According to the invention, a method for regulating the feed of a film web in a packaging machine, which comprises a forming station, a sealing station and a punching station, comprises the following steps:
  • Arranging a film web in the area of the forming station by means of first feed means;
  • Introducing at least a first and a second cup arrangement, each with at least one cup into the film web in a form cycle of the forming station, the first cup arrangement leading the second cup arrangement in a conveying direction of the packaging machine and a distance between a first predetermined element of the first cup arrangement and a second predetermined element of the second cup arrangement is referred to as a first distance;
  • clocked movement of the film web relative to the forming station between a first form cycle and a second form cycle following this by a feed length in the conveying direction, a distance between a third predetermined element of a cup arrangement of the first form cycle leading in the conveying direction and a fourth predetermined element of a cup arrangement following this Cup arrangement of the second form cycle is referred to as a second distance, wherein the first and the third predetermined element correspond with respect to their relative arrangement in the conveying direction within the respective cup arrangement and the second and fourth predetermined element correspond with respect to their relative arrangement in the conveying direction within the respective cup arrangement;
  • Determining the first distance;
  • Determining the second distance downstream of the forming station; and
  • Regulating the feed length on the basis of the determined first distance and second distance in such a way that, in subsequent form cycles, the determined second distance corresponds to the first distance or deviates from the first distance by a defined amount.

Auf diese Weise wird mittels der ersten Alternative erreicht, dass der zweite Abstand zwischen zwei Napfanordnungen aufeinanderfolgender Formtakte stets dem ersten Abstand zweier Napfanordnungen desselben Formtakts entspricht, auch wenn es während des Herstellungsprozesses, beispielsweise durch sich ändernde Umgebungsparameter, zu unerwarteten oder unvorhergesehenen Abweichungen kommt. Sowohl innerhalb eines Formtakts als auch zwischen aufeinanderfolgenden Formtakten sind die Napfanordnungen infolgedessen in regelmäßigen Abständen angeordnet. Da unmittelbar auf entstehende Abweichungen zwischen dem ersten und dem zweiten Abstand reagiert wird, können die um die Napfanordnungen vorzusehenden Stege mit geringen Toleranzen ausgebildet werden, wodurch der Folienbedarf verringert wird. Zudem sind ein präzises Siegeln der Folienbahn und ein präzises Ausstanzen von einzelnen Verpackungen möglich. In der zweiten Alternative kann beispielsweise eine gezielte Verschiebung der Folienbahn erfolgen, um die Folienbahn mit der Bedruckung der Oberfolie beim Siegeln in Einklang zu bringen.In this way it is achieved by means of the first alternative that the second distance between two cup arrangements of successive form cycles always corresponds to the first distance between two cup arrangements of the same form cycle, even if unexpected or unforeseen deviations occur during the production process, for example due to changing environmental parameters. As a result, the cup arrangements are arranged at regular intervals both within a form cycle and between successive form cycles. Since there is an immediate reaction to deviations that arise between the first and the second distance, the webs to be provided around the cup arrangements can be designed with small tolerances, as a result of which the film requirement is reduced. In addition, precise sealing of the film web and precise punching out of individual packaging are possible. In the second alternative, for example, a targeted displacement of the film web can take place in order to bring the film web into line with the printing on the top film during sealing.

Vorzugsweise sind der erste und der zweite Abstand parallel zur Förderrichtung definiert. Dies ermöglicht es, dass das erfindungsgemäße Verfahren auch dann zuverlässig anwendbar ist, wenn aufeinanderfolgende Näpfe oder Napfreihen in einer Breitenrichtung quer zur Förderrichtung der Folienbahn versetzt zueinander angeordnet sind.The first and the second distance are preferably defined parallel to the conveying direction. This enables the method according to the invention to be used reliably even if successive cups or rows of naps are offset in relation to one another in a width direction transverse to the conveying direction of the film web.

Es ist bevorzugt, dass das erste, das zweite, das dritte und das vierte Element als ein Napf der jeweiligen Napfanordnung oder als eine Referenzmarke der jeweiligen Napfanordnung ausgebildet sind. Bei der Ausbildung des ersten, zweiten, dritten und vierten Elements als ein Napf bietet sich der Vorteil, dass keine zusätzlichen Elemente in der Folienbahn vorzusehen sind, um das erfindungsgemäße Verfahren zu ermöglichen. Zudem lassen sich Näpfe auf einfache Art und Weise zuverlässig und automatisiert detektieren, so dass die Fehleranfälligkeit des Verfahrens verringert wird. Sind das erste, das zweite, das dritte und das vierte Element jeweils als Referenzmarke ausgebildet, bietet dies den Vorteil, dass die Referenzmarken unabhängig von der Geometrie und Anordnung der Näpfe derart ausgebildet sein können, dass sie zuverlässig detektiert werden können. Referenzmarken werden üblicherweise gemeinsam mit den Näpfen in die Folienbahn eingebracht, so dass die Position einer Referenzmarke relativ zu den Näpfen einer Napfanordnung festgelegt ist. Dabei sind das dritte und das vierte Element bevorzugt jeweils in der zugehörigen Napfanordnung an derselben Stelle angeordnet. Wegen der größeren Messstrecke fallen Messabweichungen dann weniger ins Gewicht.It is preferred that the first, the second, the third and the fourth element are designed as a bowl of the respective bowl arrangement or as a reference mark of the respective bowl arrangement. The advantage of designing the first, second, third and fourth elements as a cup is that no additional elements have to be provided in the film web in order to enable the method according to the invention. In addition, bowls can be detected reliably and automatically in a simple manner, so that the susceptibility to errors of the method is reduced. If the first, the second, the third and the fourth element are each designed as a reference mark, this offers the advantage that the reference marks can be designed independently of the geometry and arrangement of the cups in such a way that they can be reliably detected. Reference marks are usually introduced into the film web together with the cups, so that the position of a reference mark is fixed relative to the cups of a cup arrangement. The third and fourth elements are preferably each arranged in the corresponding cup arrangement at the same location. Because of the larger measuring distance, measuring deviations are less significant.

Ebenso können das dritte und das vierte Element aber jeweils als ein Napf ausgebildet und in Förderrichtung unmittelbar hintereinander angeordnet sein. Der zweite Abstand ist dann zwischen einem in Förderrichtung letzten Napf bzw. einer letzten Napfreihe einer voraneilenden Napfanordnung eines ersten Formtakts und einem in Förderrichtung ersten Napf bzw. einer ersten Napfreihe einer nachfolgenden Napfanordnung eines auf den ersten Formtakt folgenden zweiten Formtakts zu bestimmen.Likewise, however, the third and the fourth element can each be designed as a cup and arranged directly one behind the other in the conveying direction. The second distance is then to be determined between a last cup or a last row of cups of a leading cup arrangement of a first form cycle in the conveying direction and a first cup or first row of cups of a subsequent cup arrangement of a second form cycle following the first form cycle in the conveying direction.

Das Bestimmen des ersten Abstands ist besonders einfach, wenn das Bestimmen des ersten Abstands vorzugsweise auf Basis der Geometrie des Formwerkzeugs erfolgt und der erste Abstand in einer Steuereinrichtung der Verpackungsmaschine hinterlegt ist. Da der erste Abstand durch das erste und das zweite vorbestimmte Element bestimmbar ist, die wiederum gemeinsam in einem Formtakt durch das Formwerkzeug in die Folienbahn eingebracht werden, ist auch der erste Abstand auf Basis der Geometrie des Formwerkzeugs vorbestimmbar. Dies bietet den Vorteil, dass der erste Abstand nicht gesondert erfasst werden muss, sondern einfach von der Steuereinrichtung zur Regelung der Vorschublänge abgerufen werden kann. Für verschiedene Formwerkzeuge lässt sich der jeweilige erste Abstand in der Steuereinrichtung hinterlegen, sodass in Abhängigkeit des verwendeten Formwerkzeugs stets der korrekte erste Abstand zur Regelung der Vorschublänge zur Verfügung steht.The determination of the first distance is particularly simple if the determination of the first distance is preferably based on the geometry of the molding tool and the first distance is stored in a control device of the packaging machine. Since the first distance can be determined by the first and the second predetermined element, which in turn are introduced into the film web by the molding tool in one molding cycle, the first distance can also be predetermined on the basis of the geometry of the molding tool. This offers the advantage that the first distance does not have to be recorded separately, but can simply be called up by the control device for regulating the feed length. For different molding tools, the respective first distance can be stored in the control device, so that the correct first distance for controlling the feed length is always available depending on the molding tool used.

In einer alternativen Ausführungsform umfasst das Verfahren das Bestimmen des ersten Abstands stromabwärts der Formstation, vorzugsweise an derselben Stelle und/oder vorzugsweise auf dieselbe Weise, wie auch der zweite Abstand bestimmt wird. Auf diese Weise wird es ermöglicht, auch Veränderungen des ersten Abstands während des Herstellungsprozesses in die Regelung der Vorschublänge einzubeziehen. Solche Veränderungen sind durchaus üblich und werden beispielsweise durch Schrumpfung der Folienbahn aufgrund der Aufheizung und Abkühlung hervorgerufen.In an alternative embodiment, the method comprises determining the first distance downstream of the forming station, preferably at the same location and / or preferably in the same way as the second distance is also determined. This makes it possible to include changes in the first distance during the manufacturing process in the regulation of the feed length. Such changes are quite common and are caused, for example, by shrinkage of the film web due to heating and cooling.

Vorzugsweise umfasst das Ermitteln des zweiten Abstands das Erfassen des dritten und vierten Elements und das Berechnen des zweiten Abstands aus dem zeitlichen Abstand des dritten und vierten Elements und einer Vorschubgeschwindigkeit der Folienbahn mittels der Steuereinrichtung. Dadurch wird das Verfahren insofern vereinfacht, als dass lediglich der Durchgang des dritten und vierten Elements erfasst werden muss. Dies ist mit herkömmlichen, einfach gestalteten Sensoren, bspw. in Form von Lichtschranken möglich. Komplexere visuelle Systeme sind nicht zwingend erforderlich, können aber auch vorteilhaft eingesetzt werden. Der Vorschubgeschwindigkeitsverlauf ist der Steuereinrichtung ohnehin bekannt, sodass zum Berechnen des zweiten Abstands keine weiteren Daten benötigt werden. Das Ermitteln des zweiten Abstands ist somit mit verhältnismäßig einfachen und kostengünstigen Mitteln möglich.The determination of the second distance preferably includes the detection of the third and fourth elements and the calculation of the second distance from the time interval between the third and fourth elements and a feed speed of the film web by means of the control device. This simplifies the method in that only the passage of the third and fourth elements has to be detected. This is with conventional, Simply designed sensors, for example in the form of light barriers, are possible. More complex visual systems are not absolutely necessary, but can also be used advantageously. The course of the feed speed is already known to the control device, so that no further data are required to calculate the second distance. The second distance can thus be determined using relatively simple and inexpensive means.

Das Erfassen des dritten und vierten Elements erfolgt vorzugsweise stromaufwärts der Stanzstation, mehr bevorzugt zwischen der Siegelstation und der Stanzstation und besonders bevorzugt unmittelbar vor oder in der Stanzstation. Dies bietet den Vorteil, dass in die Regelung der Vorschublänge alle im Herstellungsprozess bis zur Stanzstation auftretenden Abweichungen miteinbezogen werden. Da insbesondere das Ausstanzen einzelner Verpackungen aus der Folienbahn zur Einsparung von Folienmaterial sehr präzise erfolgen muss, ist es von Vorteil, wenn die Vorschublänge derart eingestellt ist, dass im Bereich der Stanzstation eine möglichst exakte Lage der Napfanordnungen gewährleistet ist.The third and fourth elements are preferably detected upstream of the punching station, more preferably between the sealing station and the punching station, and particularly preferably immediately before or in the punching station. This offers the advantage that all deviations occurring in the manufacturing process up to the punching station are included in the regulation of the feed length. Since in particular the punching out of individual packages from the film web must be very precise in order to save film material, it is advantageous if the feed length is set in such a way that the most exact possible position of the cup arrangements is ensured in the area of the punching station.

Vorzugsweise umfasst die Verpackungsmaschine mindestens einen Sensor zum Erfassen des dritten und vierten Elements. Da derartige Sensoren, die insbesondere den Durchtritt einzelner Näpfe oder Referenzmarken erfassen, einfach in eine Verpackungsmaschine zu integrieren sind, wird eine kostengünstige Möglichkeit geschaffen, den zweiten Abstand zu ermitteln.The packaging machine preferably comprises at least one sensor for detecting the third and fourth elements. Since sensors of this type, which in particular detect the passage of individual bowls or reference marks, can be easily integrated into a packaging machine, an inexpensive possibility is created to determine the second distance.

Das Verfahren umfasst in einer bevorzugten Ausführungsform das Ermitteln einer Abweichung des ermittelten zweiten Abstands von dem ersten Abstand mittels der Steuereinrichtung und das Regeln der ersten Vorschublänge in Abhängigkeit der ermittelten Abweichung zwischen dem ersten und dem zweiten Abstand. Dies ist besonders vorteilhaft, da die ermittelte Abweichung mit der vorzunehmenden Änderung der Vorschublänge direkt korreliert.In a preferred embodiment, the method comprises determining a deviation of the determined second distance from the first distance by means of the control device and regulating the first feed length as a function of the determined deviation between the first and the second distance. This is particularly advantageous since the deviation determined correlates directly with the change in the feed length to be made.

Weiterhin umfasst das Verfahren vorzugsweise das Bewegen der Folienbahn im Bereich der Siegelstation mittels zweiter Vorschubmittel und das Bilden eines ersten Durchhangspeichers zwischen der Formstation und der Siegelstation, wobei die Siegelstation vorzugsweise ein Paar von Siegelwalzen umfasst. Siegelwalzen eigenen sich besonders gut zum Siegeln einer Oberfolie auf die mit Napfanordnungen versehene Folienbahn. Siegelwalzen werden in der Regel kontinuierlich betrieben. In einem Übergangsbereich zwischen der getakteten Bewegung der Folienbahn im Bereich der Formstation und der kontinuierlichen Bewegung der Folienbahn im Bereich der Siegelstation ist deshalb der erste Durchhangspeicher gebildet. Er kann auch bei unterschiedlichen Transportlängen bei getakteter Bewegung im Bereich der Siegelstation und der Stanzstation notwendig sein.Furthermore, the method preferably comprises moving the film web in the area of the sealing station by means of second feed means and forming a first sag memory between the forming station and the sealing station, the sealing station preferably comprising a pair of sealing rollers. Sealing rollers are particularly well suited for sealing an upper film onto the film web provided with cup arrangements. Sealing rollers are usually operated continuously. The first sag memory is therefore formed in a transition area between the clocked movement of the film web in the area of the forming station and the continuous movement of the film web in the area of the sealing station. It can also be necessary for different transport lengths with clocked movement in the area of the sealing station and the punching station.

Schließlich ist es bevorzugt, dass die ersten Vorschubmittel stromaufwärts des ersten Durchhangspeichers angeordnet sind, um die getaktete Bewegung der Folienbahn im Bereich der Formstation zu ermöglichen. Vorzugsweise umfassen die ersten Vorschubmittel Zangen oder Vorschubwalzen, die die Folienbahn in Förderrichtung bewegen.Finally, it is preferred that the first feed means are arranged upstream of the first sag memory in order to enable the clocked movement of the film web in the region of the forming station. The first feed means preferably comprise tongs or feed rollers which move the film web in the conveying direction.

Weitere Eigenschaften und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung unter Bezugnahme auf die Zeichnungen.

Fig. 1
ist eine schematische Seitenansicht einer Verpackungsmaschine;
Fig. 2 und 3
sind schematische Draufsichten auf einen Ausschnitt einer Folienbahn in der Verpackungsmaschine nach Fig. 1.
Further properties and advantages of the present invention will become apparent from the following description with reference to the drawings.
Fig. 1
is a schematic side view of a packaging machine;
2 and 3
are schematic plan views of a section of a film web in the packaging machine according to Fig. 1 .

Fig. 1 zeigt schematisch und beispielhaft eine Verpackungsmaschine, für die das erfindungsgemäße Verfahren zum Regeln des Vorschubs einer Folienbahn in der Verpackungsmaschine geeignet ist. Fig. 1 shows schematically and by way of example a packaging machine for which the inventive method for regulating the feed of a film web in the packaging machine is suitable.

Die Verpackungsmaschine 1 umfasst eine Mehrzahl von Arbeitsstationen, die von einer Folienbahn 2 in einer Förderrichtung F durchlaufen werden. In Bezug auf die Förderrichtung F der Folienbahn 2 bedeutet "stromaufwärts" im Folgenden entgegen der Förderrichtung F und "stromabwärts" in Förderrichtung F.The packaging machine 1 comprises a plurality of workstations which are traversed by a film web 2 in a conveying direction F. With respect to the conveying direction F of the film web 2, “upstream” in the following means opposite to the conveying direction F and “downstream” in the conveying direction F.

Die Folienbahn 2 ist eingangs auf einer ersten Vorratsrolle 4 aufgerollt und wird von dieser zunächst einer Formstation 6 zugeführt. Im Formbereich der Formstation 6 wird die Folienbahn 2 vorzugsweise durch Heizmittel 8 erwärmt. Bei Aluminiumverbund-Folienbahnen können die Heizmittel 8 entfallen. Eine Formvorrichtung 10, die beispielsweise Tiefziehwerkzeuge umfasst, bringt dann Napfanordnungen mit jeweils mindestens einem Napf, vorzugsweise mehreren Näpfen, zur Aufnahme von Produkten in die Folienbahn 2 ein. Wenn die Folienbahn 2 vor dem Formvorgang erwärmt wurde, wird die Folienbahn 2 durch erste Kühlmittel 12 gekühlt, um ein unkontrolliertes Schrumpfen der Folienbahn möglichst zu unterbinden. Die Kühlmittel 12 können vorzugsweise auch in die Formvorrichtung 10 integriert sein. Erste Vorschubmittel 14 bewegen die Folienbahn 2 im Bereich der Formstation getaktet in Förderrichtung F. Die ersten Vorschubmittel 14 können, wie dargestellt, durch eine oder mehrere Vorschubwalzen gebildet sein. Denkbar ist aber auch die Verwendung von Zangen, die die Folienbahn 2 randseitig ergreifen und in Förderrichtung F ziehen.The film web 2 is initially rolled up on a first supply roll 4 and is first fed from this to a forming station 6. In the molding area of the molding station 6, the film web 2 is preferably heated by heating means 8. In the case of aluminum composite film webs, the heating means 8 can be omitted. A shaping device 10, which comprises deep-drawing tools, for example, then introduces cup arrangements, each with at least one cup, preferably a plurality of cups, for holding products in the film web 2. If the film web 2 was heated before the molding process, the film web 2 is cooled by first coolant 12 in order to prevent uncontrolled shrinkage of the film web as far as possible. The coolants 12 can preferably also be integrated into the molding device 10. First feed means 14 move the film web 2 in the area of the forming station in a clocked manner in the conveying direction F. As shown, the first feed means 14 can be formed by one or more feed rollers. However, it is also conceivable to use tongs which grip the film web 2 at the edge and pull in the conveying direction F.

In einer Füllstation 16 werden die zu verpackenden Produkte, bevorzugt Tabletten, in die Näpfe der Folienbahn 2 eingefüllt. Eine Oberfolie 18 zum Versiegeln der Näpfe der Folienbahn 2 ist auf einer zweiten Vorratsrolle 20 gelagert. Es können Mittel 21 zum Bedrucken und Recken der Oberfolie 18 vorgesehen sein. Stromabwärts der Füllstation 16 wird die Oberfolie 18 der Folienbahn 2 derart zugeführt, dass sie die mit Produkten gefüllten Näpfe bedeckt und gemeinsam mit der Folienbahn 2 in Förderrichtung F bewegt wird. In einer Siegelstation 22 wird die Oberfolie 18 mit der Folienbahn 2 versiegelt. Hierzu ist eine Siegelvorrichtung 24 vorgesehen, die Siegelplatten oder Siegelwalzen umfassen kann. Im Anschluss an die Siegelvorrichtung 24 können zweite Kühlmittel 26 zum Kühlen der aus Oberfolie 18 und Folienbahn 2 bestehenden Materialbahn 28 vorgesehen sein. Die Kühlmittel 26 können auch in die Siegelvorrichtung 24 integriert sein. Die mit Näpfen versehene Folienbahn 2 wird im Folgenden weiterhin so bezeichnet, auch wenn sie bereits mit Produkten befüllt ist, mit einer Oberfolie versiegelt ist und mit dieser eine Einheit bildet.In a filling station 16, the products to be packaged, preferably tablets, are filled into the wells of the film web 2. An upper film 18 for sealing the wells of the film web 2 is mounted on a second supply roll 20. Means 21 for printing and stretching the top film 18 can be provided. Downstream of the filling station 16, the top film 18 is fed to the film web 2 in such a way that it covers the wells filled with products and is moved together with the film web 2 in the conveying direction F. The top film 18 is sealed with the film web 2 in a sealing station 22. For this purpose, a sealing device 24 is provided, which can comprise sealing plates or sealing rollers. Following the sealing device 24, second coolants 26 can be provided for cooling the material web 28 consisting of the upper film 18 and the film web 2. The coolants 26 can also be integrated in the sealing device 24. The film web 2 provided with cups will continue to be referred to in the following even if it is already filled with products, is sealed with an upper film and forms a unit with this.

Zweite Vorschubmittel 30 bewegen die Folienbahn 2 im Bereich der Siegelstation 22 in Förderrichtung F. Auch die zweiten Vorschubmittel 30 können Vorschubwalzen oder Zangen umfassen. Ist die Siegelvorrichtung 24 durch Siegelwalzen gebildet, wird die Folienbahn 2 im Bereich der Siegelstation 22 kontinuierlich in Förderrichtung F bewegt. Um den Übergang zwischen der getakteten Bewegung der Folienbahn 2 im Bereich der Formstation 6 und der kontinuierlichen Bewegung der Folienbahn 2 im Bereich der Siegelstation 22 zu ermöglichen, ist zwischen der Formstation 6 und der Siegelstation 22 ein erster Durchhangspeicher 32 vorgesehen. Umfasst die Siegelvorrichtung 24 Siegelplatten, wird die Folienbahn 2 im Bereich der Siegelstation 22 getaktet in Förderrichtung F bewegt. In diesem Fall kann der erste Durchhangspeicher 32 entfallen. Der erste Durchhangspeicher 32 kann aber auch als Puffer zwischen zwei unterschiedlichen Taktgeschwindigkeiten der Form- und Siegelstation 6, 22 vorgesehen sein.Second feed means 30 move the film web 2 in the area of the sealing station 22 in the conveying direction F. The second feed means 30 can also comprise feed rollers or pliers. If the sealing device 24 is formed by sealing rollers, the film web 2 is moved continuously in the conveying direction F in the area of the sealing station 22. In order to enable the transition between the clocked movement of the film web 2 in the area of the forming station 6 and the continuous movement of the film web 2 in the area of the sealing station 22, a first sag memory 32 is provided between the forming station 6 and the sealing station 22. If the sealing device 24 comprises sealing plates, the film web 2 is moved in the area of the sealing station 22 in a clocked manner in the conveying direction F. In this case, the first sag memory 32 can be omitted. The first sag memory 32 can also be provided as a buffer between two different cycle speeds of the forming and sealing station 6, 22.

Schließlich werden in einer Stanzstation 34 einzelne Verpackungen (beispielsweise Blisterverpackungen) aus der Folienbahn 2 ausgestanzt. Dritte Vorschubmittel 36 bewegen die Folienbahn 2 vorzugsweise getaktet im Bereich der Stanzstation 34 in Förderrichtung F. Stromaufwärts der Stanzstation 34 können auch Mittel 38 zum Prägen und Perforieren der Folienbahn 2 bzw. Materialbahn 28 vorgesehen sein. Wird die Folienbahn 2 im Bereich der Siegelstation 22 kontinuierlich bewegt und im Bereich der Stanzstation 34 getaktet bewegt, ist ein zweiter Durchhangspeicher 40 zwischen diesen Stationen vorgesehen. Er kann auch bei getakteter Bewegung im Bereich der Siegelstation 22 notwendig sein, wenn unterschiedliche Transportlängen vorliegen.Finally, individual packs (for example blister packs) are punched out of the film web 2 in a punching station 34. Third feed means 36 move the film web 2, preferably clocked, in the area of the punching station 34 in the conveying direction F. Upstream of the punching station 34, means 38 for embossing and perforating the film web 2 or material web 28 can also be provided. If the film web 2 is continuously moved in the area of the sealing station 22 and moved clocked in the area of the punching station 34, a second sag memory 40 is provided between these stations. It may also be necessary with clocked movement in the area of the sealing station 22 if there are different transport lengths.

Üblicherweise umfasst die Verpackungsmaschine 1 auch Mittel zum Detektieren von Näpfen in der Folienbahn 2 sowie zum Detektieren von Produkten in den Näpfen der Folienbahn 2 zur Prozesskontrolle und Qualitätssicherung. Mittel zum Detektieren von Näpfen sind entsprechend stromabwärts der Formstation 6 angeordnet.The packaging machine 1 usually also includes means for detecting cups in the film web 2 and for detecting products in the cups of the film web 2 for process control and quality assurance. Correspondingly, means for detecting cups are arranged downstream of the forming station 6.

Es versteht sich, dass die Beschreibung der Verpackungsmaschine 1 zur Veranschaulichung des erfindungsgemäßen Verfahrens dient. Die konkrete Anordnung der einzelnen Stationen bzw. Vorrichtungen sowie deren Ausbildung und Betriebsweise sind dem Fachmann bekannt und können an die jeweils vorliegenden Anforderungen angepasst werden.It goes without saying that the description of the packaging machine 1 serves to illustrate the method according to the invention. The specific arrangement of the individual stations or devices as well as their design and mode of operation are known to the person skilled in the art and can be adapted to the respective requirements.

In Fig. 2 ist ein Ausschnitt der Folienbahn 2 in einer Draufsicht dargestellt, wie er stromabwärts der Formstation 6 und vor der Stanzstation 34 vorliegt. Das heißt, dass sich bevorzugt auch schon Produkte in den Näpfen der Folienbahn 2 befinden können und die Folienbahn 2 mit der Oberfolie 18 versiegelt sein kann, auch wenn diese zur besseren Veranschaulichung nicht dargestellt sind.In Fig. 2 a section of the film web 2 is shown in a top view as it is downstream of the forming station 6 and in front of the punching station 34. This means that products can preferably already be located in the cups of the film web 2 and the film web 2 can be sealed with the top film 18, even if these are not shown for better illustration.

In Förderrichtung F sind eine erste Napfanordnung 42, eine zweite Napfanordnung 44, eine dritte Napfanordnung 46, eine vierte Napfanordnung 48 und eine fünfte Napfanordnung 50 in die Folienbahn 2 eingebracht. In einer Breitenrichtung B, die sich in der Ebene der Folienbahn 2 quer zur Förderrichtung F erstreckt, können mehrere Reihen von Napfanordnungen nebeneinander in die Folienbahn 2 eingebracht sein. In der dargestellten Ausführungsform sind zwei Reihen von Napfanordnungen in Breitenrichtung B nebeneinander in die Folienbahn 2 eingebracht, wobei die zweite Reihe die Napfanordnungen 42a, 44a, 46a, 48a und 50a aufweist.A first bowl arrangement 42, a second bowl arrangement 44, a third bowl arrangement 46, a fourth bowl arrangement 48 and a fifth bowl arrangement 50 are introduced into the film web 2 in the conveying direction F. In a width direction B, which extends transversely to the conveying direction F in the plane of the film web 2, a plurality of rows of cup arrangements can be introduced into the film web 2 next to one another. In the illustrated embodiment, two rows of cup arrangements in the width direction B are side by side in the Introduced film web 2, the second row having the cup arrangements 42a, 44a, 46a, 48a and 50a.

Zur besseren Veranschaulichung und Abgrenzung der Napfanordnungen voneinander ist jede Napfanordnung 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a umrandet dargestellt. Es ist auch vorstellbar, dass die Umrandung dabei die Kontur der in der Stanzstation 34 auszustanzenden (Blister-) Verpackungen veranschaulicht.For a better illustration and delimitation of the cup arrangements from each other, each cup arrangement 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a is shown with a border. It is also conceivable that the border illustrates the contour of the (blister) packaging to be punched out in the punching station 34.

Jede der Napfanordnungen 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a umfasst mindestens einen Napf 52, bevorzugt eine Vielzahl von Näpfen 52. Die Näpfe 52 wurden mittels der Formvorrichtung 10 in die Folienbahn 2 eingebracht und dienen der Aufnahme der zu verpackenden Produkte. Im dargestellten Ausführungsbeispiel umfasst jede Napfanordnung in Förderrichtung F fünf hintereinanderliegende Reihen von Näpfen zu je fünf Näpfen. Es versteht sich, dass jede Napfanordnung eine beliebige Anzahl von Näpfen in frei wählbaren Anordnungen umfassen kann.Each of the cup arrangements 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a comprises at least one cup 52, preferably a multiplicity of cups 52. The cups 52 were introduced into the film web 2 by means of the shaping device 10 and serve the inclusion of the products to be packaged. In the exemplary embodiment shown, each bowl arrangement in the conveying direction F comprises five rows of bowls, one behind the other, each with five bowls. It is understood that each cup arrangement can comprise any number of cups in freely selectable arrangements.

Weiterhin sind die in Fig. 2 dargestellten Napfanordnungen 42, 44, 46, 48, 50 in Förderrichtung F in Bereiche unterteilt, die durch n, n+1 und n+2 gekennzeichnet sind. Jeder Bereich n, n+1, n+2 umfasst dabei die Napfanordnungen, die in einem Formtakt n, n+1, n+2, n+i der Formstation 6 in die Folienbahn 2 eingebracht wurden. Beispielsweise wurden in einem ersten Formtakt n der Formstation 6 die erste Napfanordnung 42, die zweite Napfanordnung 44 sowie die Napfanordnungen 42a und 44a in die Folienbahn 2 eingebracht. In einem zweiten, auf den ersten Formtakt n folgenden Formtakt n+1 der Formstation 6 wurden die dritte Napfanordnung 46, die vierte Napfanordnung 48 sowie die Napfanordnungen 46a und 48a in die Folienbahn 2 eingebracht. Dies lässt sich für beliebig viele Formtakte n+i wiederholen, wobei für den dritten Formtakt n+2 nur mehr zwei Napfanordnungen 50, 50a dargestellt sind. In jedem Formtakt n bis n+i werden mindestens zwei Napfanordnungen mit jeweils mindestens einem Napf 52 in die Folienbahn 2 eingebracht. Üblicherweise werden in jedem Formtakt zwei bis sechs Napfanordnungen in die Folienbahn 2 eingebracht. Zwischen zwei aufeinanderfolgenden Formtakten n, n+1 wird die Folienbahn 2 um eine Vorschublänge V mittels der ersten Vorschubmittel 14 in Förderrichtung F bewegt.Furthermore, the in Fig. 2 Cup arrangements 42, 44, 46, 48, 50 shown in the conveying direction F are divided into areas which are characterized by n, n + 1 and n + 2. Each area n, n + 1, n + 2 comprises the cup arrangements which were introduced into the film web 2 in a form cycle n, n + 1, n + 2, n + i of the forming station 6. For example, in a first molding cycle n of the molding station 6, the first cup arrangement 42, the second cup arrangement 44 and the cup arrangements 42a and 44a were introduced into the film web 2. In a second molding cycle n + 1 of the molding station 6 following the first molding cycle n, the third cup arrangement 46, the fourth cup arrangement 48 and the cup arrangements 46a and 48a were introduced into the film web 2. This can be repeated for any number of form cycles n + i, only two cup arrangements 50, 50a being shown for the third form cycle n + 2. In each form cycle n to n + i, at least two cup arrangements, each with at least one cup 52, are introduced into the film web 2. Usually, two to six cup arrangements are introduced into the film web 2 in each form cycle. Between two successive form cycles n, n + 1, the film web 2 is moved in the conveying direction F by a feed length V by means of the first feed means 14.

Jede Napfanordnung umfasst weiterhin mindestens ein vorbestimmtes Element, das zur Regelung des Vorschubs der Folienbahn herangezogen wird. Insbesondere kann ein vorbestimmtes Element durch einen Napf oder eine Referenzmarke gebildet sein. In der dargestellten Ausführungsform umfasst die erste Napfanordnung 42 ein erstes vorbestimmtes Element 54 und die in Förderrichtung F nachfolgende zweite Napfanordnung 44 umfasst ein zweites vorbestimmtes Element 56. Das erste und das zweite vorbestimmte Element 54, 56 sind stets zwei in Förderrichtung F aufeinanderfolgenden Napfanordnungen desselben Formtakts zugeordnet. Umfasst ein Formtakt beispielsweise in Förderrichtung F drei hintereinander angeordnete Napfanordnungen, so kann das erste vorbestimmte Element 54 der in Förderrichtung F voraneilenden Napfanordnung und das zweite vorbestimmte Element 56 der der voraneilenden Napfanordnung folgenden Napfanordnung zugeordnet sein. Das erste vorbestimmte Element 54 kann aber auch der in Förderrichtung F mittleren Napfanordnung von drei Napfanordnungen zugeordnet sein, so dass das zweite vorbestimmte Element 56 der darauf folgenden dritten Napfanordnung zugeordnet ist. Der Abstand zwischen dem ersten vorbestimmten Element 54 und dem zweiten vorbestimmten Element 56 wird als erster Abstand D1 bezeichnet. Der erste Abstand D1 repräsentiert somit den Abstand, den zwei Napfanordnungen desselben Formtakts zueinander haben.Each cup arrangement further comprises at least one predetermined element which is used to regulate the advance of the film web. In particular, a predetermined one Element can be formed by a bowl or a reference mark. In the illustrated embodiment, the first bowl arrangement 42 comprises a first predetermined element 54 and the second bowl arrangement 44 following in the conveying direction F comprises a second predetermined element 56. The first and the second predetermined elements 54, 56 are always two successive bowl arrangements in the conveying direction F of the same form cycle assigned. If a form cycle comprises, for example, three cup arrangements arranged one behind the other in the conveying direction F, the first predetermined element 54 can be assigned to the cup arrangement advancing in the conveying direction F and the second predetermined element 56 can be assigned to the cup arrangement following the preceding cup arrangement. However, the first predetermined element 54 can also be assigned to the bowl arrangement of three bowl arrangements in the conveying direction F, so that the second predetermined element 56 is assigned to the third bowl arrangement that follows. The distance between the first predetermined element 54 and the second predetermined element 56 is referred to as the first distance D 1 . The first distance D 1 thus represents the distance between two cup arrangements of the same form cycle.

Eine Napfanordnung eines ersten Formtakts, auf die in Förderrichtung F eine Napfanordnung eines nachfolgenden Formtakts folgt, umfasst ein drittes vorbestimmtes Element 58. Die Napfanordnung des nachfolgenden Formtakts umfasst ein viertes vorbestimmtes Element 60. Im dargestellten Ausführungsbeispiel umfasst somit die zweite Napfanordnung 44 des ersten Formtakts n das dritte vorbestimmte Element 58 und die dritte Napfanordnung 46 des zweiten Formtakts n+1 umfasst das vierte vorbestimmte Element 60, wobei die dritte Napfanordnung 46 der zweiten Napfanordnung 44 in Förderrichtung F unmittelbar nachfolgt. Der Abstand zwischen dem dritten vorbestimmten Element 58 und dem vierten vorbestimmten Element 60 wird als zweiter Abstand D2 bezeichnet. Der zweite Abstand D2 repräsentiert somit den Abstand, den zwei Napfanordnungen aufeinanderfolgender Formtakte zueinander haben.A cup arrangement of a first form cycle, which is followed in the conveying direction F by a cup arrangement of a subsequent form cycle, comprises a third predetermined element 58. The cup arrangement of the subsequent form cycle comprises a fourth predetermined element 60. In the exemplary embodiment shown, the second cup arrangement 44 thus comprises the first form cycle n the third predetermined element 58 and the third bowl arrangement 46 of the second form cycle n + 1 comprise the fourth predetermined element 60, the third bowl arrangement 46 immediately following the second bowl arrangement 44 in the conveying direction F. The distance between the third predetermined element 58 and the fourth predetermined element 60 is referred to as the second distance D 2 . The second distance D 2 thus represents the distance between two cup arrangements of consecutive form cycles.

Wie der Fig. 2 zu entnehmen ist, korrespondieren das erste und das dritte vorbestimmte Element 54, 58 bezüglich ihrer relativen Anordnung in Förderrichtung F innerhalb der jeweiligen Napfanordnung 42, 44. D.h., dass das erste vorbestimmte Element 54 zumindest in Förderrichtung F innerhalb der ersten Napfanordnung 42 dieselbe Lage einnimmt, wie das dritte vorbestimmte Element 58 innerhalb der zweiten Napfanordnung 44. Vorzugsweise stimmt die relative Lage des ersten vorbestimmten Elements 54 innerhalb der ersten Napfanordnung 42 mit der relativen Lage des zweiten vorbestimmten Elements 56 innerhalb der zweiten Napfanordnung 44 sowohl in Förderrichtung F als auch in Breitenrichtung B überein.Again Fig. 2 can be seen, the first and the third predetermined element 54, 58 correspond with respect to their relative arrangement in the conveying direction F within the respective cup arrangement 42, 44. That is to say that the first predetermined element 54 occupies the same position at least in the conveying direction F within the first cup arrangement 42 , like the third predetermined element 58 within the second cup arrangement 44. The relative position of the first predetermined element 54 within the first is preferably correct Cup arrangement 42 corresponds to the relative position of the second predetermined element 56 within the second cup arrangement 44 both in the conveying direction F and in the width direction B.

Ebenso korrespondieren das zweite und das vierte vorbestimmte Element 56, 60 bezüglich ihrer relativen Anordnung in Förderrichtung F innerhalb der jeweiligen Napfanordnung 44, 46. D.h., dass das zweite vorbestimmte Element 56 zumindest in Förderrichtung F innerhalb der zweiten Napfanordnung 44 dieselbe Lage einnimmt, wie das vierte vorbestimmte Element 60 innerhalb der dritten Napfanordnung 46. Vorzugsweise stimmt die relative Lage des zweiten vorbestimmten Elements 56 innerhalb der zweiten Napfanordnung 44 mit der relativen Lage des vierten vorbestimmten Elements 60 innerhalb der dritten Napfanordnung 46 sowohl in Förderrichtung F als auch in Breitenrichtung B überein.Likewise, the second and fourth predetermined elements 56, 60 correspond in terms of their relative arrangement in the conveying direction F within the respective cup arrangement 44, 46. That is to say that the second predetermined element 56 at least in the conveying direction F within the second cup arrangement 44 occupies the same position as that fourth predetermined element 60 within the third cup arrangement 46. The relative position of the second predetermined element 56 within the second cup arrangement 44 preferably coincides with the relative position of the fourth predetermined element 60 within the third cup arrangement 46 both in the conveying direction F and in the width direction B.

Umfasst eine Napfanordnung wie im Ausführungsbeispiel nach Fig. 2 mindestens zwei in Förderrichtung F hintereinander angeordnete Näpfe 52 oder mindestens zwei in Förderrichtung F hintereinander angeordnete und sich in Breitenrichtung B erstreckende Napfreihen, wird ein Abstand zwischen zwei in Förderrichtung F hintereinander angeordneten Näpfen 52 einer Napfanordnung als ein dritter Abstand D3 bezeichnet.Includes a bowl arrangement as in the exemplary embodiment Fig. 2 At least two cups 52 arranged one behind the other in the conveying direction F or at least two rows of cups arranged one behind the other in the conveying direction F and extending in the width direction B, a distance between two cups 52 of a cup arrangement arranged one behind the other in the conveying direction F is referred to as a third distance D 3 .

Bevorzugt sind der erste Abstand D1, der zweite Abstand D2 und der dritte Abstand D3 parallel zur Förderrichtung F definiert. Der erste Abstand D1, der zweite Abstand D2 und der dritte Abstand D3 sind folglich in Förderrichtung F zu bestimmen, auch wenn die vorbestimmten Elemente, zwischen denen der jeweilige Abstand zu bestimmen ist, in Breitenrichtung B versetzt zueinander angeordnet sind.The first distance D 1 , the second distance D 2 and the third distance D 3 are preferably defined parallel to the conveying direction F. The first distance D 1 , the second distance D 2 and the third distance D 3 are consequently to be determined in the conveying direction F, even if the predetermined elements, between which the respective distance is to be determined, are offset from one another in the width direction B.

Das erste, das zweite, das dritte und das vierte vorbestimmte Element 54, 56, 58, 60 können jeweils als ein Napf 52 einer Napfanordnung 42, 44, 46, 48 ausgebildet sein. In der Regel lassen sich die in einer Folienbahn 2 ausgebildeten Näpfe 52 gut durch optische oder mechanische Mittel erfassen, so dass ein Abstand zwischen zwei vorbestimmten Näpfen 52 auf einfache Art und Weise zu ermitteln ist. Gemessen werden können z.B. abfallende und/oder ansteigende Flanken der Näpfe. Die Messung kann mittels senkrecht zur Transportrichtung arbeitender Lichtschranken erfolgen, welche die Näpfe beim Durchlauf erfassen, mittels Kameras, die die Kontur der Näpfe von unten erfassen, oder durch viele andere Sensoren.The first, the second, the third and the fourth predetermined element 54, 56, 58, 60 can each be designed as a cup 52 of a cup arrangement 42, 44, 46, 48. As a rule, the cups 52 formed in a film web 2 can be detected well by optical or mechanical means, so that a distance between two predetermined cups 52 can be determined in a simple manner. For example, falling and / or rising flanks of the bowls can be measured. The measurement can be carried out by means of light barriers operating perpendicular to the direction of transport, which detect the bowls during the passage, by cameras which detect the contour of the bowls from below, or by many other sensors.

Das erste, das zweite, das dritte und das vierte Element 54, 56, 58, 60 können aber auch als Referenzmarke ausgebildet sein. Derartige Referenzmarken werden vorzugsweise in der Formstation 6 gemeinsam mit den Näpfen 52 in die Folienbahn 2 eingebracht, so dass ihre Lage relativ zu den Näpfen 52 vorbestimmt ist. Referenzmarken können beispielsweise durch Prägungen in der Folienbahn 2, durch Durchgangsöffnungen in der Folienbahn 2 oder durch Aufdrucke gebildet sein. Referenzmarken eigenen sich insbesondere dann als vorbestimmte Elemente 54, 56, 58, 60, wenn die Napfgeometrie ein Erfassen der Näpfe 52 erschwert oder aufgrund der Verhältnisse innerhalb der Verpackungsmaschine 1, z.B. der Zugänglichkeit ein Erfassen der Näpfe 52 nicht oder nur schwer möglich ist.The first, the second, the third and the fourth element 54, 56, 58, 60 can also be designed as a reference mark. Such reference marks are preferably introduced into the film web 2 together with the cups 52 in the forming station 6, so that their position relative to the cups 52 is predetermined. Reference marks can be formed, for example, by embossing in the film web 2, through openings in the film web 2 or by printing. Reference marks are particularly suitable as predetermined elements 54, 56, 58, 60 if the cup geometry makes it difficult to grasp the cups 52 or because of the conditions within the packaging machine 1, e.g. the accessibility, it is not possible or difficult to grasp the cups 52.

In Fig. 3 sind beispielhaft eine sechste, siebte, achte und neunte Napfanordnung 62, 64, 66, 68 dargestellt, um verschiedene Möglichkeiten der Ausbildung der vorbestimmten Elemente 54, 56, 58, 60 sowie verschiedene relative Anordnungen derselben zu veranschaulichen. Die sechste und die siebte Napfanordnung 62, 64 sind dabei in Förderrichtung F hintereinander angeordnet, wobei die sechste Napfanordnung 62 voraneilt. In Breitenrichtung B versetzt sind die achte und die neunte Napfanordnung 66, 68 in Förderrichtung F hintereinander angeordnet, wobei die achte Napfanordnung 66 voraneilt. Wie zuvor beschrieben, korrespondieren jeweils das erste und das dritte vorbestimmte Element 54, 58 sowie das zweite und das vierte vorbestimmte Element 56, 60 hinsichtlich ihrer relativen Lage innerhalb der Napfanordnung, jedenfalls in Förderrichtung F.In Fig. 3 A sixth, seventh, eighth and ninth cup arrangement 62, 64, 66, 68 are shown by way of example in order to illustrate different possibilities for the formation of the predetermined elements 54, 56, 58, 60 as well as different relative arrangements of the same. The sixth and the seventh bowl arrangement 62, 64 are arranged one behind the other in the conveying direction F, the sixth bowl arrangement 62 leading ahead. Offset in the width direction B, the eighth and the ninth cup arrangement 66, 68 are arranged one behind the other in the conveying direction F, the eighth cup arrangement 66 leading ahead. As described above, the first and third predetermined elements 54, 58 and the second and fourth predetermined elements 56, 60 each correspond in terms of their relative position within the cup arrangement, at least in the conveying direction F.

Die dargestellten Abstände D, D' und D" können sowohl dem ersten Abstand D1 als auch dem zweiten Abstand D2 entsprechen. Entspricht die sechste Napfanordnung 62 beispielsweise der ersten Napfanordnung 42 und die siebte Napfanordnung 64 der zweiten Napfanordnung 44 nach Fig. 2, so geben die dargestellten Abstände D, D' und D" verschiedene Möglichkeiten des ersten Abstands D1 an. Entspricht die sechste Napfanordnung 62 hingegen der zweiten Napfanordnung 44 und die siebte Napfanordnung 64 der dritten Napfanordnung 46, so geben die Abstände D, D' und D" verschiedene Möglichkeiten des zweiten Abstands D2 an.The distances D, D 'and D "shown can correspond to both the first distance D 1 and the second distance D 2. The sixth cup arrangement 62 corresponds, for example, to the first cup arrangement 42 and the seventh cup arrangement 64 to the second cup arrangement 44 Fig. 2 , the distances D, D 'and D "shown indicate different possibilities of the first distance D 1. If, however, the sixth cup arrangement 62 corresponds to the second cup arrangement 44 and the seventh cup arrangement 64 to the third cup arrangement 46, the distances D, D' and D "different possibilities of the second distance D 2 .

Sind die vorbestimmten Elemente 54, 56, 58, 60 als Napf 52 ausgebildet, ist es möglich, dass das erste bzw. das dritte vorbestimmte Element 54, 58 der sechsten Napfanordnung 62 und das zweite bzw. das vierte vorbestimmte Element 56, 60 der siebten Napfanordnung 64 in Förderrichtung F direkt hintereinander angeordnet sind. D.h., dass das erste bzw. dritte vorbestimmte Element 54, 58 ein in Förderrichtung F letzter Napf 52 der sechsten Napfanordnung 62 ist, und das zweite bzw. vierte vorbestimmte Element 60 ein erster Napf 52 der siebten Napfanordnung 64 ist.If the predetermined elements 54, 56, 58, 60 are formed as a bowl 52, it is possible for the first or the third predetermined element 54, 58 of the sixth bowl arrangement 62 and the second or the fourth predetermined element 56, 60 of the seventh Cup arrangement 64 are arranged one behind the other in the conveying direction F. This means that the first or third predetermined element 54, 58 is a last bowl 52 of the sixth bowl arrangement 62 in the conveying direction F, and the second or fourth predetermined element 60 is a first bowl 52 of the seventh bowl arrangement 64.

Alternativ kann der Abstand aber auch zwischen beliebigen anderen Näpfen der jeweiligen Napfanordnungen gebildet sein. Beispielsweise kann der Abstand D' zwischen Näpfen 52 vorgesehen sein, die in Förderrichtung F in der jeweiligen Napfanordnung zuvorderst ausgebildet sind. In diesem Fall ist der Abstand D' gebildet zwischen einem ersten bzw. dritten vorbestimmten Element 54', 58', das durch einen Napf 52 der in Förderrichtung F vordersten Reihe der sechsten Napfanordnung 62 ausgebildet ist, und einem zweiten bzw. vierten vorbestimmten Element 56', 60', das durch einen Napf 52 der in Förderrichtung F vordersten Reihe der siebten Napfanordnung 64 ausgebildet ist. In einer solchen Anordnung sind das zweite und das dritte Element identisch.Alternatively, the distance can also be formed between any other cups of the respective cup arrangements. For example, the distance D 'can be provided between cups 52, which are formed foremost in the conveying direction F in the respective cup arrangement. In this case, the distance D 'is formed between a first or third predetermined element 54', 58 ', which is formed by a cup 52 of the front row in the conveying direction F of the sixth cup arrangement 62, and a second or fourth predetermined element 56 ', 60', which is formed by a bowl 52 of the front row in the conveying direction F of the seventh bowl arrangement 64. In such an arrangement, the second and third elements are identical.

Beispielhaft sind anhand der achten und neunten Napfanordnung 66 und 68 vorbestimmte Elemente 54", 56", 58", 60" dargestellt, die als Referenzmarken ausgebildet sind. Zwischen der Referenzmarke 54", 58" der voraneilenden achten Napfanordnung 66 und der Referenzmarke 56", 60" der nachfolgenden neunten Napfanordnung 68 ist der Abstand D" gebildet. Es versteht sich, dass eine Referenzmarke in einer beliebigen Lage innerhalb der jeweiligen Napfanordnung ausgebildet sein kann. In der dargestellten Anordnung sind das zweite und das dritte Element identisch.By way of example, predetermined elements 54 ″, 56 ″, 58 ″, 60 ″ are shown on the basis of the eighth and ninth bowl arrangements 66 and 68, which are designed as reference marks. The distance D "is formed between the reference mark 54", 58 "of the leading eighth cup arrangement 66 and the reference mark 56", 60 "of the subsequent ninth cup arrangement 68. It is understood that a reference mark can be formed in any position within the respective cup arrangement In the arrangement shown, the second and third elements are identical.

Es ist auch möglich, bestimmte der Elemente 54, 54', 54", 56, 56', 56", 58, 58', 58", 60, 60', 60" als Referenzmarken zu definieren und andere als Näpfe.It is also possible to define certain of the elements 54, 54 ', 54 ", 56, 56', 56", 58, 58 ', 58 ", 60, 60', 60" as reference marks and others as bowls.

Gemäß dem erfindungsgemäßen Verfahren wird die Folienbahn 2 zunächst im Bereich der Formstation 6 mittels der ersten Vorschubmittel 14 angeordnet. In der Formstation 6 werden mindestens die erste und die zweite Napfanordnung 42, 44 mit jeweils mindestens einem Napf 52 in die Folienbahn 2 in einem Formtakt n der Formstation 6 eingebracht. Üblicherweise werden in einem Formtakt zwei bis sechs Napfanordnungen in die Folienbahn 2 eingebracht, wobei jede Napfanordnung eine Mehrzahl von Näpfen umfasst, die in mindestens einer Reihe angeordnet sind. Die erste Napfanordnung 42 eilt der zweiten Napfanordnung 44 in Förderrichtung F der Verpackungsmaschine 1 voraus. Das erste vorbestimmte Element 54 und das zweite vorbestimmte Element 56 sind zwei aufeinander folgenden Napfanordnungen des einen Formtakts zugewiesen und vorzugsweise als Napf 52 ausgebildet. Bevorzugt ist ihre Anordnung nach dem Beispiel des Abstands D nach Fig. 3.According to the inventive method, the film web 2 is first arranged in the area of the forming station 6 by means of the first feed means 14. In the molding station 6, at least the first and the second cup arrangement 42, 44, each with at least one cup 52, are introduced into the film web 2 in a molding cycle n of the molding station 6. Usually, two to six cup arrangements are introduced into the film web 2 in a form cycle, each cup arrangement comprising a plurality of cups which are arranged in at least one row. The first cup arrangement 42 leads the second cup arrangement 44 in the conveying direction F of the packaging machine 1. The first predetermined Element 54 and the second predetermined element 56 are assigned to two successive cup arrangements of the one form cycle and are preferably designed as cup 52. Their arrangement according to the example of the distance D is preferred Fig. 3 .

Da das erste und das zweite vorbestimmte Element 54, 56 in einem Formtakt durch die Formvorrichtung 10 der Formstation 6 in die Folienbahn 2 eingebracht werden, ist der erste Abstand D1 durch die Geometrie des Formwerkzeugs der Formstation 6 vorgegeben. D.h., dass der erste Abstand D1 auf Basis der Geometrie des Formwerkzeugs bestimmbar ist und in einer Steuereinrichtung (nicht dargestellt) der Verpackungsmaschine 1 hinterlegt sein kann. Aufgrund des Schrumpfens der Folienbahn 2 kann es aber innerhalb der Verpackungsmaschine 1 entlang der Förderrichtung F zu Veränderungen des ersten Abstands D1 kommen. Um auch diese Veränderungen des ersten Abstands D1 zu erfassen bzw. den für die Steuerung der Verpackungsmaschine 1 maßgeblichen ersten Abstand D1 zur Regelung heranzuziehen, kann der erste Abstand D1 auch stromabwärts der Formstation 6 durch Sensoren oder Kameras bestimmt werden.Since the first and the second predetermined elements 54, 56 are introduced into the film web 2 in a molding cycle through the molding device 10 of the molding station 6, the first distance D 1 is predetermined by the geometry of the molding tool of the molding station 6. This means that the first distance D 1 can be determined on the basis of the geometry of the molding tool and can be stored in a control device (not shown) of the packaging machine 1. Due to the shrinkage of the film web 2, changes in the first distance D 1 can occur within the packaging machine 1 along the conveying direction F. In order to also detect these changes in the first distance D 1 or to use the first distance D 1 , which is decisive for the control of the packaging machine 1, for regulation, the first distance D 1 downstream of the forming station 6 can also be determined by sensors or cameras.

Nachdem die Napfanordnungen des ersten Formtakts n, also zumindest die erste und die zweite Napfanordnung 44, 46, in die Folienbahn 2 eingebracht wurden, wird die Folienbahn 2 zwischen dem ersten Formtakt n und dem auf diesen folgenden zweiten Formtakt n+1 um eine Vorschublänge V in Förderrichtung F bewegt. Anschließend werden die Napfanordnungen des zweiten Formtakts n+1 in die Folienbahn 2 eingebracht.After the cup arrangements of the first form cycle n, that is to say at least the first and the second cup arrangement 44, 46, have been introduced into the film web 2, the film web 2 is moved by a feed length V between the first form cycle n and the second form cycle n + 1 following this moved in the direction of conveyance F. The cup arrangements of the second form cycle n + 1 are then introduced into the film web 2.

Aufgrund der Folienschrumpfung oder aufgrund von Toleranzen oder Fehlern in der Vorschubbewegung der Folienbahn 2 und somit der Vorschublänge V kann es dazu kommen, dass trotz vorheriger Berechnung der zweite Abstand D2 ungleich dem ersten Abstand D1 ist und so eine inhomogene Folienbahn gebildet wird. Um eine möglichst homogene Folienbahn 2 bereitzustellen, ist es jedoch wünschenswert, dass der zweite Abstand D2 dem ersten Abstand D1 entspricht.Due to the shrinkage of the film or due to tolerances or errors in the feed movement of the film web 2 and thus the feed length V, it can happen that, despite previous calculation, the second distance D 2 is not equal to the first distance D 1 and an inhomogeneous film web is formed. In order to provide a film web 2 that is as homogeneous as possible, however, it is desirable that the second distance D 2 corresponds to the first distance D 1 .

Das Verfahren umfasst daher das Bestimmen des ersten Abstands D1, das Ermitteln des zweiten Abstands D2 und das Regeln der Vorschublänge V derart, dass bei nachfolgenden Formtakten n+i der ermittelte zweite Abstand D2 dem ersten Abstand D1 entspricht. Das Bestimmen des ersten Abstands D1 kann, wie zuvor beschrieben, beispielsweise durch Abrufen eines in der Steuereinrichtung hinterlegten Werts erfolgen.The method therefore includes determining the first distance D 1 , determining the second distance D 2 and regulating the feed length V in such a way that the second distance D 2 determined corresponds to the first distance D 1 in subsequent form cycles n + i. As described above, the first distance D 1 can be determined, for example, by calling up a value stored in the control device.

Das Ermitteln des zweiten Abstands D2 erfolgt stromabwärts der Formstation 6 und umfasst vorzugsweise das Ermitteln des zweiten Abstands D2 durch Erfassen des dritten und vierten vorbestimmten Elements 58, 60. Beispielsweise kann das Erfassen des dritten und des vierten Elements 58, 60 durch Sensoren oder Kameras erfolgen, die den Durchtritt des dritten und des vierten Elements 58, 60 detektieren. Vorzugsweise erfolgt das Erfassen des dritten und des vierten Elements 58, 60 stromaufwärts der Stanzstation 34, mehr bevorzugt unmittelbar stromaufwärts der Siegelstation 22 oder unmittelbar stromaufwärts der Stanzstation 34. Am meisten bietet sich das Erfassen des zweiten Abstands D2 nach dem Siegeln in der Siegelstation 22 an. Diese Positionen eignen sich besonders zum Anordnen entsprechender Mittel zum Erfassen der vorbestimmten Elemente.The determination of the second distance D 2 takes place downstream of the molding station 6 and preferably comprises the determination of the second distance D 2 by detecting the third and fourth predetermined elements 58, 60. For example, the detection of the third and fourth elements 58, 60 by sensors or Cameras are carried out which detect the passage of the third and fourth elements 58, 60. The third and fourth elements 58, 60 are preferably detected upstream of the punching station 34, more preferably immediately upstream of the sealing station 22 or immediately upstream of the punching station 34. The detection of the second distance D 2 after sealing in the sealing station 22 is most suitable on. These positions are particularly suitable for arranging corresponding means for detecting the predetermined elements.

Der zweite Abstand D2 wird beispielsweise aus dem zeitlichen Abstand des dritten und vierten Elements 58, 60 und einer Vorschubgeschwindigkeit der Folienbahn 2 mittels der Steuereinrichtung berechnet. Es kann auch der Zeitpunkt des Durchtritts des dritten und vierten Elements 58, 60 erfasst werden, wobei die Steuereinrichtung, die auch einen Servomotor zum Antreiben der Vorschubmittel ansteuert, basierend auf den Daten des Servomotors den Abstand zwischen den Durchtrittszeitpunkten des dritten und vierten Elements 58, 60 bestimmt.The second distance D 2 is calculated, for example, from the time interval of the third and fourth elements 58, 60 and a feed speed of the film web 2 by means of the control device. The time of passage of the third and fourth elements 58, 60 can also be recorded, the control device, which also controls a servo motor for driving the feed means, based on the data of the servo motor, the distance between the times of passage of the third and fourth elements 58, 60 determined.

Das Bestimmen des ersten Abstands D1 kann, wie zuvor beschrieben, beispielsweise durch Abrufen eines in der Steuereinrichtung hinterlegten Werts erfolgen. Bevorzugt wird aber auch der erste Abstand D1 auf vergleichbare Weise ermittelt wie der zweite Abstand D2, wobei das erste und das zweite Element 54, 56 an die Stelle des dritten und vierten Elements 58, 60 treten.As described above, the first distance D 1 can be determined, for example, by calling up a value stored in the control device. However, the first distance D 1 is preferably also determined in a manner comparable to the second distance D 2 , the first and second elements 54, 56 taking the place of the third and fourth elements 58, 60.

Weiterhin kann die Steuereinrichtung eine Abweichung zwischen dem ermittelten zweiten Abstand D2 und dem ersten Abstand D1 ermitteln und die erste Vorschublänge V in Abhängigkeit der ermittelten Abweichung zwischen dem ersten und dem zweiten Abstand D1, D2 regeln.Furthermore, the control device can determine a deviation between the determined second distance D 2 and the first distance D 1 and regulate the first feed length V as a function of the determined deviation between the first and the second distance D 1 , D 2 .

Weitere Mittel zum Erfassen der vorbestimmten Elemente 54, 56, 58, 60 in Form von Näpfen oder Referenzmarken sowie die Auswertung der dadurch gewonnenen Daten sind dem Fachmann bekannt und können ohne Weiteres zum Umsetzen des erfindungsgemäßen Verfahrens herangezogen werden.Further means for detecting the predetermined elements 54, 56, 58, 60 in the form of cups or reference marks and for evaluating the data obtained thereby are Known in the art and can easily be used to implement the method according to the invention.

Die Erfindung wurde bislang unter Bezugnahme auf eine Formstation 6, eine Füllstation 16, eine Siegelstation 22 und eine Stanzstation 34 beschrieben. Es kann aber jeweils auch mehr als eine dieser Stationen vorliegen. Wenn es sich bei den Produkten beispielsweise um Ampullen oder Vials handelt, kann die Siegelstation 22 in manchen Ausführungsformen entfallen, weil keine Oberfolie 18 benötigt wird.The invention has so far been described with reference to a molding station 6, a filling station 16, a sealing station 22 and a punching station 34. However, there can also be more than one of these stations. In some embodiments, if the products are, for example, ampoules or vials, the sealing station 22 can be omitted because no top film 18 is required.

Bislang wurde die Erfindung bei feststehender Formstation 6 beschrieben. Es ist aber auch möglich, die Formstation 6 während des Formens mit der Folienbahn 2 mitzubewegen und nach dem Formen wieder an die Ausgangsposition zu verfahren. In einem solchen Fall wird die Bewegung der Folienbahn 2 relativ zur Formstation 6 zwischen den Formtakten durch eine von der üblichen Bewegung abweichende Bewegung erzeugt.So far, the invention has been described with a fixed molding station 6. However, it is also possible to move the forming station 6 with the film web 2 during the forming and to move it back to the starting position after the forming. In such a case, the movement of the film web 2 relative to the forming station 6 between the forming cycles is generated by a movement deviating from the usual movement.

Claims (15)

  1. A method for regulating the advance of a film web (2) in a packaging machine (1), which comprises a forming station (6), a filling station (16), preferably a sealing station (22), and a punching station (34), said method comprising the steps of:
    arranging a film web (2) in the region of the forming station (6) by means of first advancing means (14);
    introducing at least a first and a second cup arrangement (42, 44), each having at least one cup (52), into the film web (2) in a forming cycle (n) of the forming station (6), wherein the first cup arrangement (42) runs ahead of the second cup arrangement (44) in a conveying direction (F) of the packaging machine (1), and wherein a distance between a first predetermined element (54) of the first cup arrangement (42) and a second predetermined element (56) of the second cup arrangement (44) is referred to as a first distance (D1);
    moving the film web (2) in a stepwise fashion relative to the forming station (6), between a first forming cycle (n) and a second forming cycle (n+1) which follows the first forming cycle, by an advancement length (V) in the conveying direction (F), characterized in that a distance between a third predetermined element (58) of a cup arrangement (44) of the first forming cycle (n), said cup arrangement (44) running ahead in the conveying direction (F), and a fourth predetermined element (60) of a cup arrangement (46) of the second forming cycle (n+1), said cup arrangement (46) following after said cup arrangement (44) of the first forming cycle (n), is referred to as a second distance (D2), wherein the first and the third predetermined element (54, 58), with respect to their relative arrangement in the conveying direction (F) within the respective cup arrangement (42, 44), correspond, and the second and the fourth predetermined element (56, 60), with respect to their relative arrangement in the conveying direction (F) within the respective cup arrangement (44, 46), correspond;
    determining the first distance (D1);
    acquiring the second distance (D2) downstream of the forming station (6); and
    regulating the advancement length (V) on the basis of the acquired first distance (D1) and second distance (D2) in such a way that, in following forming cycles (n+i), the acquired second distance (D2) corresponds to the first distance (D1) or deviates from the first distance (D1) by a defined amount.
  2. The method according to claim 1, characterized in that the first and the second distance (D1, D2) are defined parallel to the conveying direction (F).
  3. The method according to one of the preceding claims, characterized in that the first, the second, the third and the fourth predetermined element (54, 56, 58, 60) are configured in the form of a cup (52) of the respective cup arrangement (42, 44, 46) or in the form of a reference mark of the respective cup arrangement (42, 44, 46).
  4. The method according to claim 3, characterized in that the third and the fourth element (58, 60) are arranged in each case at the same point in the associated cup arrangement (42, 44, 46).
  5. The method according to claim 4, characterized in that the first and the second element (54, 56) are likewise arranged in each case at the same point in the associated cup arrangement (42, 44, 46).
  6. The method according to one of the preceding claims, characterized in that the first distance (D1) is determined on the basis of the geometry of the forming tool and the first distance (D1) is stored in a control device of the packaging machine (1).
  7. The method according to one of claims 1 to 5, characterized in that determining the first distance (D1) comprises the step of detecting the first and second elements (54, 56) downstream of the forming station (6), preferably upstream of the punching station (34), particularly preferably between the sealing station (22) and the punching station (34).
  8. The method according to one of the preceding claims, characterized in that ascertaining the second distance (D2) comprises the steps of detecting the third and fourth elements (58, 60), and calculating the second distance (D2) from the temporal distance between the third and fourth elements (58, 60) and an advancement rate profile of the film web (2) by means of the control device.
  9. The method according to claim 8, characterized in that the third and fourth elements (58, 60) are detected upstream of the punching station (34), preferably between the sealing station (22) and the punching station (34).
  10. The method according to claim 8 or 9, characterized in that the packaging machine (1) comprises at least one sensor or camera for detecting the third and fourth elements (58, 60).
  11. The method according to claim 10, characterized in that the sensor or the camera is also used to detect the first and second elements (54, 56).
  12. The method according to one of the preceding claims, characterized in that the method comprises ascertaining a deviation of the acquired second distance (D2) from the first distance (D1) by means of the control device and regulating the advancement length (V) in a manner dependent on the ascertained deviation between the first and the second distance (D1, D2).
  13. The method according to one of the preceding claims, characterized in that it comprises the steps of moving the film web (2) in the region of the sealing station (22) by means of second advancing means (30) and forming a first slack store (32) between the forming station (6) and the sealing station (22), wherein the sealing station (22) preferably comprises a pair of sealing rollers.
  14. The method according to one of the preceding claims, characterized in that the first advancing means (14) are arranged upstream of the first slack store (32).
  15. The method according to one of the preceding claims, characterized in that the first advancing means (14) comprise pincers or advancing rollers, which move the film web (2) in the conveying direction (F).
EP18155105.2A 2018-02-05 2018-02-05 Method for controlling the feed rate of a film web in a packaging machine Active EP3521185B1 (en)

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EP18155105.2A EP3521185B1 (en) 2018-02-05 2018-02-05 Method for controlling the feed rate of a film web in a packaging machine
US16/252,017 US10822125B2 (en) 2018-02-05 2019-01-18 Method for automatically controlling the feed of a film web in a packaging machine
CN201910108142.2A CN110116834B (en) 2018-02-05 2019-02-02 Method for automatically controlling the feeding of a film web in a packaging machine

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900007812A1 (en) * 2019-06-03 2020-12-03 Plusline S R L Group for feeding plastic film.
US11577870B1 (en) * 2019-09-27 2023-02-14 Amazon Technologies, Inc. Isolated film tension and steering system
JP7539128B2 (en) * 2019-12-23 2024-08-23 大森機械工業株式会社 Product supply equipment and packaging machines

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276183A (en) * 1963-03-22 1966-10-04 Diamond Crystal Salt Co Register control device for packaging apparatus
CH535112A (en) 1971-03-24 1973-03-31 Hoefliger & Karg Fa Device for regulating the preferred length of a material web
DE2745422C3 (en) * 1977-10-08 1982-08-26 Société d'Application Plastique, Mécanique et Electronique Plastimécanique S.A., 14700 Falaise Method for operating a thermoforming machine and device for carrying out the method
US4575995A (en) * 1980-04-03 1986-03-18 Murata Manufacturing Co., Ltd. Automatic producing apparatus of chip-form electronic parts aggregate
IT1145011B (en) * 1981-01-23 1986-11-05 Ima Spa EQUIPMENT FOR CONTROL OF OPERATIONS ALONG THE OPERATING LINE OF PACKAGING MACHINES, PARTICULARLY OF PACKAGES - "BLISTERS" AND SIMILAR
US4868759A (en) * 1986-11-14 1989-09-19 Fmc Corporation Master position encoder follower system for film feeding means
US4860522A (en) * 1988-06-20 1989-08-29 Hayssen Manufacturing Company Form, fill and seal registration system apparatus and method including variable length compensation and out of registration restoration
US5192484A (en) * 1988-09-14 1993-03-09 Matsuzawa Co., Ltd. Method of forming blisters
DE3912054A1 (en) 1989-04-13 1990-10-18 Iwk Verpackungstechnik Gmbh Automatic confectionery packing machine - has pockets formed in strip of plastics film at same spacing as images on cover strip
US5191693A (en) * 1989-12-29 1993-03-09 Canon Kabushiki Kaisha Tape type work conveying method and conveying apparatus
IT1242534B (en) * 1990-06-07 1994-05-16 Ima Spa EQUIPMENT FOR RECEIVING BLISTERS FROM A BLISTER LINE FOR THE PACKAGING OF VARIOUS ITEMS IN SINGLE BLISTERS, AND FOR THE POWER SUPPLY, WITH STACKS OF SUCH BLISTERS OF RELATIVE CONTAINERS LOCATED IN A CONTAINER SET-UP LINE.
DE4216209C2 (en) 1992-05-15 1996-10-31 Multivac Haggenmueller Kg Packaging machine with a print mark sensor and three work stations with their own drive
JP2644141B2 (en) * 1992-06-08 1997-08-25 シーケーディ株式会社 Tablet sheet manufacturing equipment
US5743070A (en) * 1996-08-16 1998-04-28 Automated Packaging Systems, Inc. Packaging machine, material and method
US5802521A (en) 1996-10-07 1998-09-01 Oracle Corporation Method and apparatus for determining distinct cardinality dual hash bitmaps
US6033502A (en) 1996-11-13 2000-03-07 Kimberly-Clark Worldwide, Inc. Process and apparatus for registering continuously moving stretchable layers
EP1021336A4 (en) * 1997-07-16 2002-08-07 Robotic Vision Systems Position sensing system for an inspection and handling system
US6247293B1 (en) * 1998-11-03 2001-06-19 Klockner Bartelt, Inc. Modular packaging machine with web tension control
US7762301B2 (en) * 2002-09-16 2010-07-27 CSAT Gesellschaft für Computer-Systeme und Automalions-Technik mbH Device for the precise positional joining of two material webs
ES2310821T5 (en) * 2004-05-07 2015-10-22 I.M.A. Industria Macchine Automatiche S.P.A. Blister packaging production machine intended to produce blister packaging
DE102006033782B4 (en) 2006-07-21 2008-04-17 Uhlmann Pac-Systeme Gmbh & Co. Kg Apparatus for sealing a cup having a cup with a cover sheet
DE602007009196D1 (en) * 2007-05-04 2010-10-28 Cfs Buehl Gmbh Packaging machine with foreign body detection
ITBO20070592A1 (en) * 2007-08-27 2009-02-28 Marchesini Group Spa METHOD FOR FILLING THE HOLLOWS OF A HOLLOWED TAPE WITH CORRESPONDING ARTICLES AND APPARATUS THAT ACTIVES THIS METHOD
CN202449235U (en) * 2011-12-27 2012-09-26 厦门沃野机械设备有限公司 Granular material packaging machine
CN202879832U (en) * 2012-11-09 2013-04-17 沈哲敏 Medicine plate transfer conveying device
ITBO20130162A1 (en) * 2013-04-12 2014-10-13 Marchesini Group Spa METHOD AND SYSTEM TO SYNCHRONIZE A WORKING STATION OF A BLISTERING MACHINE WITH THE ADVANCEMENT OF A BLISTER TAPE
ES2592185T3 (en) * 2013-10-09 2016-11-28 Multivac Sepp Haggenmüller Gmbh & Co. Kg Deep drawing and process packaging machine
JP6081939B2 (en) 2014-02-25 2017-02-15 Ckd株式会社 PTP packaging machine
ZA201505551B (en) * 2014-10-23 2016-04-28 H G Molenaar And Company Pty Limited A feed control system for a lidding web
US10421571B2 (en) * 2016-03-28 2019-09-24 An-Sung Wang System for sensing element adjustment and material belt detection
JP6273339B1 (en) * 2016-12-08 2018-01-31 Ckd株式会社 Inspection device and PTP packaging machine
CN106516249B (en) * 2016-12-29 2019-03-08 安徽中一智能科技有限公司 Bag in bag fully automatic high-speed packing machine
CN107226241B (en) * 2017-07-11 2023-05-12 浙江鼎业机械设备有限公司 Bagging mechanism of automatic sanitary towel packaging machine
JP6368408B1 (en) * 2017-08-08 2018-08-01 Ckd株式会社 Blister packing machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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US10822125B2 (en) 2020-11-03
EP3521185A1 (en) 2019-08-07
US20190241288A1 (en) 2019-08-08
CN110116834A (en) 2019-08-13
CN110116834B (en) 2021-10-12

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