EP3521185A1 - Procédé de commande de mouvement d'avance d'une feuille continue dans une machine d'emballage - Google Patents

Procédé de commande de mouvement d'avance d'une feuille continue dans une machine d'emballage Download PDF

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Publication number
EP3521185A1
EP3521185A1 EP18155105.2A EP18155105A EP3521185A1 EP 3521185 A1 EP3521185 A1 EP 3521185A1 EP 18155105 A EP18155105 A EP 18155105A EP 3521185 A1 EP3521185 A1 EP 3521185A1
Authority
EP
European Patent Office
Prior art keywords
distance
cup
film web
station
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.)
Granted
Application number
EP18155105.2A
Other languages
German (de)
English (en)
Other versions
EP3521185B1 (fr
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/fr
Priority to US16/252,017 priority patent/US10822125B2/en
Priority to CN201910108142.2A priority patent/CN110116834B/zh
Publication of EP3521185A1 publication Critical patent/EP3521185A1/fr
Application granted granted Critical
Publication of EP3521185B1 publication Critical patent/EP3521185B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/14—Feeding webs from rolls by grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18—Registering sheets, blanks, or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B47/00—Apparatus 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
    • B65B47/02—Apparatus 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
    • B65B57/04—Automatic 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/02—Auxiliary 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
    • B65B61/025—Auxiliary 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing 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
    • B65B9/045—Enclosing 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 controlling the feeding of a film web in a packaging machine.
  • Packaging machines are used for example for the production of blister packs for pharmaceuticals or food packaging.
  • packaging machines include workstations sequentially arranged in a production or conveying direction, including a forming, filling, sealing and stamping stations.
  • workstations sequentially arranged in a production or conveying direction, including a forming, filling, sealing and stamping stations.
  • dish wells are formed into a film web, the wells filled with products and sealed with a cover sheet and finally cut or punched individual packages of the film web.
  • One aim of such packaging machines is to produce as homogeneous a foil strip as possible, into which individual cup arrangements are introduced at regular intervals from each other or in predetermined patterns.
  • This has several advantages. In the area of the sealing station, this ensures that wells in the film web are reliably received in recesses of the sealing tools and that squashing of the cups and the products contained therein between the sealing tools is avoided. In the field of punching station, however, it is desirable to produce as little as possible waste or rejects during punching of 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 is to be provided around the cup arrangements so as not to damage the cups and products during punching. Tolerances in the advancing movement of the film web or a shrinkage of the film web, which deviates from the previously calculated values, can lead to such irregularities or deviations of 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 are displaceable in and against the direction of production in order to align them relative to the wells in the film web. With the detection of the position of the wells and the displacement of each individual workstation, however, a high control effort is connected, which in turn is error-prone.
  • the second distance between two well assemblies of successive mold cycles always corresponds to the first distance between two cup arrangements of the same mold clock, even if unexpected or unforeseen deviations occur during the production process, for example as a result of changing environmental parameters.
  • the cup assemblies are arranged at regular intervals. Because of the immediate reaction to deviations between the first and the second distance, the webs to be provided around the cup arrangements can be formed with small tolerances, whereby the film requirement is reduced. In addition, a precise sealing of the film web and a precise punching of individual packages are possible.
  • a targeted displacement of the film web can take place in order to bring the film web into conformity with the printing of the upper film during sealing.
  • the first and the second distance are defined parallel to the conveying direction. This makes it possible for the method according to the invention to be used reliably even when successive cups or rows of dishes are arranged offset in relation to one another in a width direction transversely to the conveying direction of the film web.
  • the first, the second, the third and the fourth element are formed as a cup of the respective cup arrangement or as a reference mark of the respective cup arrangement.
  • first, second, third and fourth elements are formed as a cup of the respective cup arrangement or as a reference mark of the respective cup arrangement.
  • Reference marks are usually introduced together with the cups in the film web, so that the position of a reference mark is fixed relative to the wells of a cup arrangement.
  • the third and the fourth element are preferably arranged in each case in the associated cup arrangement at the same location. Because of the longer measuring distance, measurement deviations are less significant.
  • the third and the fourth element can each be designed as a cup and arranged directly behind one another in the conveying direction.
  • the second distance is then to be determined between a cup last in the conveying direction or a last row of a leading cup arrangement of a first forming clock and a first cup or a first row of a subsequent cup arrangement of a second forming clock following the first forming clock.
  • the determination of the first distance is particularly simple if the determination of the first distance preferably takes place on the basis of 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 together in a mold cycle through the mold into the film web, the first distance can also be predetermined on the basis of the geometry of the mold. This offers the advantage that the first distance does not have to be detected separately, but can be easily retrieved by the control device for controlling the feed length. For different molds, the respective first distance can be deposited in the control device, so that the correct first distance for controlling the feed length is always available depending on the mold used.
  • the method includes determining the first distance downstream of the forming station, preferably at the same location and / or preferably in the same manner as determining the second distance. In this way, it is possible to include also changes of 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.
  • determining the second distance comprises detecting the third and fourth elements and calculating the second distance from the time interval of the third and fourth elements and a feed rate of the film web by means of the control device.
  • the feed rate curve is known to the controller anyway, so that no further data is needed to calculate the second distance. The determination of the second distance is thus possible with relatively simple and inexpensive means.
  • the third and fourth elements are preferably detected upstream of the stamping station, more preferably between the sealing station and the stamping station, and particularly preferably immediately before or in the stamping station.
  • This offers the advantage that all deviations occurring in the production process up to the punching station are included in the regulation of the feed length. Since in particular the punching of individual packages from the film web to save foil material must be very precise, it is advantageous if the feed length is set such that in the area of the punching station as exact as possible position of the cup arrangements is ensured.
  • the packaging machine comprises at least one sensor for detecting the third and fourth elements. Since such sensors, which in particular detect the passage of individual wells or reference marks, are easy to integrate into a packaging machine, a cost-effective option is provided 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 determined deviation directly correlates with the change in the feed length to be made.
  • the method preferably comprises moving the film web in the region of the sealing station by means of second feed means and forming a first slack store between the forming station and the sealing station, the sealing station preferably comprising a pair of sealing rolls.
  • Sealing rollers are particularly suitable for sealing a top film on the provided with Napfan angelen film web. sealing rollers are usually operated continuously. In a transition region between the clocked movement of the film web in the region of the forming station and the continuous movement of the film web in the region of the sealing station, therefore, the first sag storage is formed. It may also be necessary for different transport lengths with clocked movement in the area of the sealing station and the punching station.
  • the first feed means are arranged upstream of the first slack store in order to enable the cycled movement of the film web in the region of the forming station.
  • the first feed means comprise pliers 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 method according to the invention is suitable for controlling the feeding of a film web in the packaging machine.
  • the packaging machine 1 comprises a plurality of work stations, 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 supplied from this first a forming station 6.
  • the film web 2 is preferably heated by heating means 8.
  • the heating means 8 can be omitted.
  • the coolant 12 may preferably also be integrated into the molding device 10.
  • First feed means 14 move the film web 2 in the region of the forming station clocked in the conveying direction F.
  • the first feed means 14 can, as shown, be formed by one or more feed rollers. It is also conceivable, however, the use of pliers that grab the film web 2 edge and pull in the conveying direction F.
  • the products to be packaged are filled into the wells of the film web 2.
  • a top film 18 for sealing the cups of the film web 2 is mounted on a second supply roll 20. Means 21 for printing and stretching the top film 18 may be provided. Downstream of the filling station 16, the upper film 18 is fed to the film web 2 in such a way that it covers the cups 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.
  • a sealing device 24 is provided, which may comprise sealing plates or sealing rolls.
  • second cooling means 26 may be provided for cooling the material web 28 consisting of upper film 18 and film web 2.
  • the coolant 26 may also be integrated into the sealing device 24.
  • the provided with cups film web 2 is further referred to hereinafter, even if it is already filled with products, is sealed with a top film and forms a unit with this.
  • Second advancing means 30 move the film web 2 in the region of the sealing station 22 in the conveying direction F.
  • the second advancing means 30 can also comprise feed rollers or pliers. If the sealing device 24 is formed by sealing rolls, the film web 2 is moved continuously in the conveying direction F in the region of the sealing station 22. In order to enable the transition between the cycled movement of the film web 2 in the region of the forming station 6 and the continuous movement of the film web 2 in the region 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 conveying direction F in a clocked manner in the region of the sealing station 22. In this case, the first slack storage 32 can be omitted. The first slack storage 32 may also be provided as a buffer between two different clock speeds of the forming and sealing station 6, 22.
  • stamping station 34 Individual packages (for example blister packs) are punched out of the film web 2 in a stamping station 34.
  • Third feed means 36 move the film web 2, preferably clocked in the region of the punching station 34 in the conveying direction F. Upstream of the punching station 34 and means 38 for embossing and perforating the film web 2 or web 28 may be provided. If the film web 2 is moved continuously in the region of the sealing station 22 and is moved clocked in the region of the punching station 34, a second slack storage 40 is provided between these stations. It may also be necessary for clocked movement in the region of the sealing station 22 if there are different transport lengths.
  • the packaging machine 1 also comprises means for detecting wells in the film web 2 and for detecting products in the wells of the film web 2 for process control and quality assurance.
  • Means for detecting wells are respectively 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 training and operation are known in the art and can be adapted to the respective requirements.
  • Fig. 2 a section of the film web 2 is shown in a plan view, as it is present downstream of the forming station 6 and before the punching station 34. This means that products may already preferably be located in the wells of the film web 2 and the film web 2 may be sealed to the top film 18, even if they are not shown for better illustration.
  • a first cup arrangement 42, a second cup arrangement 44, a third cup arrangement 46, a fourth cup arrangement 48 and a fifth cup arrangement 50 are introduced into the film web 2.
  • a width direction B which extends in the plane of the film web 2 transversely to the conveying direction F, a plurality of rows of cup assemblies can be introduced side by side into the film web 2.
  • two rows of cup assemblies in the width direction B are juxtaposed in the Film web 2 introduced, wherein the second row, the cup assemblies 42a, 44a, 46a, 48a and 50a.
  • each cup assembly 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a is shown outlined. It is also conceivable that the outline thereby illustrates the contour of the (blister) packaging to be punched out in the punching station 34.
  • Each of the cup assemblies 42, 44, 46, 48, 50, 42a, 44a, 46a, 48a, 50a comprises at least one cup 52, preferably a plurality of cups 52.
  • the cups 52 have been introduced into the film web 2 by means of the molding apparatus 10 and serve the reception of the products to be packaged.
  • each well arrangement in the conveying direction F comprises five successive rows of wells of five wells each. It is understood that each cup assembly may comprise any number of wells in arbitrary arrangements.
  • Fig. 2 shown Napfan onionen 42, 44, 46, 48, 50 in the conveying direction F divided into areas which are characterized by n, n + 1 and n + 2.
  • Each region n, n + 1, n + 2 comprises the cup arrangements, which were introduced into the film web 2 in a molding cycle n, n + 1, n + 2, n + i of the forming station 6.
  • 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 forming station 6 following the first mold 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 shaping cycles n + i, with only two well arrangements 50, 50a being shown for the third shaping cycle n + 2.
  • n to n + i at least two cup arrangements, each with at least one cup 52, are introduced into the film web 2.
  • two to six cup arrangements are introduced into the film web 2 in each mold cycle.
  • the film web 2 is moved by a feed length V by means of the first feed means 14 in the conveying direction F.
  • Each cup arrangement further comprises at least one predetermined element that is used to control the feed of the film web.
  • a predetermined Element be formed by a cup or a reference mark.
  • the first cup assembly 42 includes a first predetermined member 54 and the second cup assembly 44 subsequent to the conveying direction F includes a second predetermined member 56.
  • the first and second predetermined members 54, 56 are always two sequential cup assemblies of the same molding clock in the conveying direction F. assigned. If, for example, a mold cycle comprises three cup arrangements arranged one behind the other in the conveying direction F, the first predetermined element 54 may be associated with the cup arrangement advancing in the conveying direction F and the second predetermined element 56 with the cup arrangement following the preceding cup arrangement.
  • the first predetermined element 54 may, however, also be associated with the central cup arrangement of three cup arrangements in the conveying direction F, so that the second predetermined element 56 is associated with the third cup arrangement following thereon.
  • 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 that two cup arrangements of the same shaping clock have with respect to one another.
  • a cup assembly of a first molding cycle followed by a cup assembly of a subsequent molding cycle in the conveying direction F comprises a third predetermined element 58.
  • the molding assembly of the subsequent molding cycle comprises a fourth predetermined element 60.
  • the second well assembly 44 of the first molding clock n comprises n the third predetermined element 58 and the third well arrangement 46 of the second forming clock n + 1 comprise the fourth predetermined element 60, the third well arrangement 46 immediately following the second well 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 a second distance D 2 .
  • the second distance D 2 thus represents the distance that two cup arrangements of successive shaping cycles have with respect to each other.
  • Fig. 2 corresponds to the first and the third predetermined element 54, 58 with respect to their relative arrangement in the conveying direction F within the respective Napfan whatsoever 42, 44th That is, the first predetermined element 54 at least in the conveying direction F within the first well arrangement 42 occupies the same position
  • the relative position of the first predetermined element 54 is preferably within the first Cup assembly 42 with the relative position of the second predetermined element 56 within the second well assembly 44 in both the conveying direction F and in the width direction B match.
  • the second and the fourth predetermined element 56, 60 correspond with respect to their relative arrangement in the conveying direction F within the respective cup arrangement 44, 46. That is, the second predetermined element 56 at least in the conveying direction F within the second cup assembly 44 occupies the same position as that fourth predetermined element 60 within the third well assembly 46.
  • the relative location of the second predetermined element 56 within the second well assembly 44 coincides with the relative location of the fourth predetermined member 60 within the third well assembly 46 in both the conveying direction F and the width direction B.
  • a cup arrangement as in the 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 in the direction of conveyance 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 defined parallel to the conveying direction F.
  • the first distance D 1 , the second distance D 2 and the third distance D 3 are therefore to be determined in the conveying direction F, even if the predetermined elements, between which the respective distance is to be determined, are offset in the width direction B from one another.
  • the first, second, third and fourth predetermined elements 54, 56, 58, 60 may each be formed as a cup 52 of a cup assembly 42, 44, 46, 48.
  • the cups 52 formed in a film web 2 can be easily detected 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 cups can be measured. The measurement can be carried out by means of working perpendicular to the transport direction of light barriers, which detect the wells during the passage, by means of cameras that detect the contour of the wells from below, or by many other sensors.
  • 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 in the forming station 6 together with the cups 52 in the film web 2, so that their position relative to the wells 52 is predetermined.
  • Reference marks can be formed, for example, by imprints in the film web 2, through passage openings in the film web 2 or by imprints.
  • Reference marks are particularly suitable as predetermined elements 54, 56, 58, 60 if the cup geometry makes it difficult to detect the cups 52 or due to the conditions within the packaging machine 1, e.g. the accessibility detection of the wells 52 is not possible or difficult.
  • a sixth, seventh, eighth and ninth cup arrangement 62, 64, 66, 68 are illustrated to illustrate various ways of forming the predetermined elements 54, 56, 58, 60 as well as various relative arrangements thereof.
  • the sixth and the seventh cup arrangement 62, 64 are arranged one behind the other in the conveying direction F, the sixth cup arrangement 62 leading the way.
  • the eighth and the ninth cup arrangement 66, 68 are arranged one behind the other in the conveying direction F, with the eighth cup arrangement 66 leading the way.
  • each of the first and third predetermined elements 54, 58 and the second and fourth predetermined elements 56, 60 correspond in their relative position within the cup assembly, at least in the conveying direction F.
  • the illustrated distances D, D 'and D may correspond to both the first distance D 1 and the second distance D 2. If the sixth well arrangement 62 corresponds, for example, to the first well arrangement 42 and the seventh well arrangement 64 follows the second well arrangement 44 Fig. 2 , the illustrated distances D, D 'and D "indicate different possibilities of the first distance D 1. If, however, the sixth well arrangement 62 corresponds to the second well arrangement 44 and the seventh well arrangement 64 to the third well 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 cup 52, it is possible that the first and the third predetermined element 54, 58 of the sixth cup arrangement 62 and the second and the fourth predetermined element 56, 60 of the seventh cup assembly 64 are arranged in the conveying direction F directly behind one another. That is, the first and third predetermined element 54, 58 is a last cup 52 of the sixth cup arrangement 62 in the conveying direction F, and the second and fourth predetermined element 60 is a first cup 52 of the seventh cup arrangement 64.
  • the distance can also be formed between any other wells of the respective cup arrangements.
  • the distance D 'between cups 52 may be provided, which are vorderst formed in the conveying direction F in the respective Napfan eleven.
  • the distance D ' is formed between a first and third predetermined element 54', 58 ', which is formed by a cup 52 of the foremost row of the sixth cup arrangement 62 in the conveying direction F, and a second or fourth predetermined element 56 ', 60', which is formed by a cup 52 of the foremost in the conveying direction F series of the seventh cup assembly 64.
  • the second and third elements are identical.
  • predetermined elements 54 ", 56", 58 “, 60” are illustrated, which are designed as reference marks.
  • the distance D " is formed between the reference mark 54", 58 “of the advancing eighth cup arrangement 66 and the reference mark 56", 60 “of the following ninth cup arrangement 68. It is understood that a reference mark may be formed in any position within the respective cup arrangement In the illustrated arrangement, the second and third elements are identical.
  • the film web 2 is first arranged in the region of the forming station 6 by means of the first feed means 14.
  • the first and the second cup arrangement 42, 44 are introduced into the film web 2 in a molding cycle n of the forming station 6.
  • two to six cup assemblies are introduced into the film web 2 in a molding cycle, each cup assembly comprising a plurality of cups 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 ahead.
  • the first predetermined Element 54 and the second predetermined element 56 are assigned to two consecutive cup arrangements of the one shaping clock and are preferably formed as a cup 52. Preferably, their arrangement is according to the example of the distance D to Fig. 3 ,
  • the first distance D 1 is predetermined by the geometry of the molding tool of the molding station 6. That is, 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, however, it is possible for the first distance D 1 to change 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 control of the packaging machine 1 relevant first distance D 1 for control, the first distance D 1 can also be determined downstream of the forming station 6 by sensors or cameras.
  • the film web 2 is moved between the first forming clock n and the second forming cycle n + 1 following this by a feed length V moved in the conveying direction F. Subsequently, the cup arrangements of the second shaping clock n + 1 are introduced into the film web 2.
  • the second distance D 2 Due to the film shrinkage or due to tolerances or errors in the advancing movement of the film web 2 and thus the feed length V, it may happen that despite previous calculation of the second distance D 2 is not equal to the first distance D 1 and so an inhomogeneous film web is formed. In order to provide a film web 2 which is as homogeneous as possible, however, it is desirable for the second distance D 2 to correspond to the first distance D 1 .
  • the method therefore comprises determining the first distance D 1 , determining the second distance D 2 and regulating the feed length V such that the determined second distance D 2 corresponds to the first distance D 1 during subsequent shaping cycles n + i.
  • the determination of the first distance D 1 can, as described above, be carried out, for example, by retrieving a value stored in the control device.
  • the second distance D 2 is determined downstream of the forming station 6 and preferably comprises determining the second distance D 2 by detecting the third and fourth predetermined elements 58, 60.
  • detecting the third and fourth elements 58, 60 by sensors or Cameras take place, which detect the passage of the third and fourth elements 58, 60.
  • the third and fourth members 58, 60 are detected upstream of punching station 34, more preferably immediately upstream of sealing station 22 or immediately upstream of punching station 34.
  • detection of second distance D 2 after sealing in sealing station 22 is convenient 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 rate 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 detected, wherein the control device, which also drives a servomotor for driving the feed means, based on the data of the servo motor, the distance between the passage times of the third and fourth element 58, 60 determined.
  • the determination of the first distance D 1 can, as described above, be carried out, for example, by retrieving a value stored in the control device.
  • the first distance D 1 is determined in a comparable manner as the second distance D 2 , wherein the first and the second element 54, 56 take the place of the third and fourth element 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 hitherto been described with reference to a forming station 6, a filling station 16, a sealing station 22 and a punching station 34. However, there may be more than one of these stations in each case. For example, if the products are ampoules or vials, the sealing station 22 may be eliminated in some embodiments because no top film 18 is needed.
  • the invention has been described in fixed molding station 6.
  • the forming station 6 it is also possible for the forming station 6 to move along with the film web 2 during molding and to move back to the starting position after molding. In such a case, the movement of the film web 2 relative to the forming station 6 between the mold cycles is generated by a movement deviating from the usual movement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP18155105.2A 2018-02-05 2018-02-05 Procédé de commande de mouvement d'avance d'une feuille continue dans une machine d'emballage Active EP3521185B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18155105.2A EP3521185B1 (fr) 2018-02-05 2018-02-05 Procédé de commande de mouvement d'avance d'une feuille continue dans une machine d'emballage
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 (zh) 2018-02-05 2019-02-02 在包装机中用于自动控制薄膜网送料的方法

Applications Claiming Priority (1)

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EP18155105.2A EP3521185B1 (fr) 2018-02-05 2018-02-05 Procédé de commande de mouvement d'avance d'une feuille continue dans une machine d'emballage

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EP3521185A1 true EP3521185A1 (fr) 2019-08-07
EP3521185B1 EP3521185B1 (fr) 2020-07-29

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US11577870B1 (en) * 2019-09-27 2023-02-14 Amazon Technologies, Inc. Isolated film tension and steering system

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US3762617A (en) 1971-03-24 1973-10-02 Hoefliger & Karg Apparatus for stepwise transport of webs of synthetic plastic material or the like
DE3912054A1 (de) 1989-04-13 1990-10-18 Iwk Verpackungstechnik Gmbh Verfahren und vorrichtung zum herstellen von durch deckfolien abgedeckten behaeltern
EP0569933A1 (fr) 1992-05-15 1993-11-18 Multivac Sepp Haggenmüller Kg Machine d'emballage pourvue de stations de travail mobiles
JPH05338613A (ja) * 1992-06-08 1993-12-21 Ckd Corp 錠剤シート製造装置
US5802521A (en) 1996-10-07 1998-09-01 Oracle Corporation Method and apparatus for determining distinct cardinality dual hash bitmaps
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JP2015157648A (ja) 2014-02-25 2015-09-03 Ckd株式会社 Ｐｔｐ包装機

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Publication number Publication date
US20190241288A1 (en) 2019-08-08
CN110116834B (zh) 2021-10-12
US10822125B2 (en) 2020-11-03
CN110116834A (zh) 2019-08-13
EP3521185B1 (fr) 2020-07-29

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