EP1517835A1 - Procede de commande d'une machine de conditionnement sous blister - Google Patents

Procede de commande d'une machine de conditionnement sous blister

Info

Publication number
EP1517835A1
EP1517835A1 EP04703359A EP04703359A EP1517835A1 EP 1517835 A1 EP1517835 A1 EP 1517835A1 EP 04703359 A EP04703359 A EP 04703359A EP 04703359 A EP04703359 A EP 04703359A EP 1517835 A1 EP1517835 A1 EP 1517835A1
Authority
EP
European Patent Office
Prior art keywords
period
movement
adjustment movement
time
cycle
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.)
Withdrawn
Application number
EP04703359A
Other languages
German (de)
English (en)
Inventor
Richard Christ
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.)
IWK Verpackungstechnik GmbH
Original Assignee
IWK Verpackungstechnik GmbH
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 IWK Verpackungstechnik GmbH filed Critical IWK Verpackungstechnik GmbH
Publication of EP1517835A1 publication Critical patent/EP1517835A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • 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
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/10—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles
    • B65B5/101—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles by gravity
    • B65B5/103—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles by gravity for packaging pills or tablets
    • 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

  • a blister packaging machine of conventional design comprises a molding station in which a multiplicity of cup-shaped depressions are formed in a base film made of plastic or aluminum, into each of which a product, for example a pharmaceutical tablet, is inserted in a downstream filling station. After the product has been fed in, the base film is fed to a sealing station. A cover film is fed directly in front of or within the sealing station and applied to the base film. sets. The cover film is sealed tightly to the base film by the action of heat within the sealing station, as a result of which the product is enclosed in the cup-shaped depression.
  • the forming station is operated intermittently and therefore discontinuously.
  • the sealing station can either also be operated intermittently, alternatively it is also known to operate the sealing station continuously, the transition from the intermittent operation of the forming station to the continuous operation of the sealing station taking place via known compensation devices.
  • the performance of a blister packaging machine essentially depends on the cycle rate R, ie the number of cycles to be carried out per minute.
  • a cycle curve of a corresponding work cycle is shown as a simplified, polygon-shaped path-time diagram in FIG. 2a, which will be briefly explained below.
  • the molding station operated in cycles must carry out various movements and processing or treatments.
  • a first adjustment movement namely the closing movement of the mold plates
  • the closing path S v is predetermined in terms of production technology and the closing movement is carried out over a predetermined period of time T v ⁇ until point 1 (see FIG. 2a) is reached in which the mold plates are closed and have reached their end position.
  • the mold plates have then reached their treatment state, in which, for example, a preheated plastic base film is cooled over a period T B , the cup-shaped depressions in the base film also being formed, in particular by means of compressed air or form stamps.
  • T B a preheated plastic base film
  • the cup-shaped depressions in the base film also being formed, in particular by means of compressed air or form stamps.
  • T v2 a second adjustment movement follows, namely the opening movement of the mold plates, which in turn takes place via the path S v (but in the opposite direction) over a period T v2 .
  • the starting position is reached again.
  • a very short opening time which is not to be considered further here, which is caused by processing in terms of computer technology or software, or a rest period, which should not be considered further here, can be excluded.
  • the further transport of the base film begins when the mold plates have moved apart by the path Sv / 2, ie there is still a time period t zi and from the beginning of the next for the further transport of the base film until the end of the cycle
  • a period of time t z2 is available until the time at which the mold plates are half closed again, the total transport time T z resulting from the sum of t Z ⁇ and t z2 .
  • the curves were mechanically determined by rotating cams, the rotation of which was derived from a central, driven main shaft, the so-called vertical shaft.
  • the curves are stored in software and the motorized movement of the adjustment movements takes place via servomotors, which are activated by control electronics or the corresponding software.
  • Advantages for the servo drive arise above all if an additional stroke adjustment or a shutdown during operation is required. These functions can be implemented and changed without additional mechanical effort.
  • the movement sections of the cycle curve are usually designed in such a way that they meet the process requirements of the customer as well as possible and can still be carried out at the highest possible cycle rate. With this cycle curve, once defined, all products are then driven later during operation of the blister packaging machine.
  • This procedure facilitates the control-related coordination of all movements dependent on the movement of the mold plate, for example the movement of the die, the movement of the warp or the movement of the heating plate.
  • a correspondingly stretched clock curve is shown in Fig. 2b. It can be seen from this that the transport time T z for the film, which results from the sum of the stretched periods t ' Z ⁇ and t' z2, is increased by 50%.
  • the invention has for its object to provide a method for controlling a blister packaging machine, which enables the machine fitter to variably adapt the cycle curve or the movement curve to the production and working conditions of the packaging machine.
  • this object is achieved by a method having the characterizing features of claim 1. It is provided that the time period T V ⁇ , the time period T B and the time period T v2 are entered directly or indirectly independently of one another by means of the input device. ben and that a processing unit is provided, by means of which it is checked whether the entered periods T V ⁇ , T B and T v2 are within predetermined limits and whether their sum is less than or equal to a maximum cycle time T max .
  • the invention is based on the basic idea of not only compressing or stretching a given curve shape in its entirety, but rather of adapting the individual curve sections to the curve individually and merely checking whether the specified framework conditions are met. In this way, individual curve sections can be individually matched to the prevailing production conditions, so that a higher cycle rate R and thus a higher performance of the packaging machine can be achieved than with conventional compression or expansion of the entire cycle curve.
  • the work station whose cycle curve can be changed, can be a molding station of a blister packaging machine.
  • the molding station has two mold plates that can be adjusted relative to one another, between which a base film is provided with cup-shaped receptacles. If the base film is made of plastic, it is processed in a preheated state and cooled in the molding station.
  • the first adjustment movement is then formed by the closing movement of the mold plates, the closing movement only being completed when the mold plates have reached the end position and the mold plates already moving in the last movement phase of the closing movement
  • Plant can be located. At the end of the closing movement, the mold plates remain in a treatment state over a period of time T B in which the base film is formed and, if necessary, cooled. Acting in the 2nd adjustment movement then it is the opening movement of the mold plates, which return to their open starting position.
  • the work station can be a sealing station with sealing plates which can be adjusted relative to one another, between which a cover film is sealed onto the base film.
  • the first adjustment movement is the closing movement of the sealing plates, which remain in a treatment state at the end of the closing movement over the period T B , in which the cover film is sealed onto the base film.
  • the 2nd adjustment movement is the opening movement of the sealing plates.
  • a direct input of time values, in particular in ms, can be provided for the independent input of the time periods T V1 , T B and T v2 .
  • Adjustment movement or the opening movement is entered. These values are also preferably not entered as absolute values, but as relative values. For this purpose, it is provided that a velocity v s of the 1st adjustment movement is limited to a maximum speed v smax and that the desired average Ge ⁇ speed v sg the first adjusting movement as a percentage
  • the duration T B of the treatment state is preferably entered directly as an absolute value in ms using the input device.
  • FIG. 1 shows a schematic illustration of the essential components of a blister packaging machine
  • FIG. 2a shows a customary clock curve as a path - time -
  • FIG. 3 shows the selection options for the period Tvi
  • FIG. 4 shows the selection options for the period T B .
  • Figure 7 is a schematic plan view of an input device.
  • Fig. 1 shows the essential components of a blister packaging machine 10 in a schematic representation.
  • a plastic base film 11 coming from a supply is first fed to a heating station 12 which has a lower heating plate 12b and an upper heating plate 12a which is adjustable relative to the lower heating plate 12b.
  • the two heating plates 12a and 12b are closed, the base film received between them is heated.
  • a molding station 13 which comprises a lower molding plate 13a and an upper molding plate 13b that can be adjusted for this purpose.
  • the two mold plates 13a and 13b which are shown in the open position, can be closed, the base film received between the closed mold plates 13a and 13b being cooled and simultaneously provided with cup-shaped depressions by supplying compressed air or by means of stamping dies.
  • a transport device 14 connects to the forming station 13, by means of which the base film 11 is pulled through the individual stations in cycles. The bottom film 11 provided with the cup-like depressions is then guided over deflection rollers 15 and 16 of a filling station
  • the base film 11 then runs to a sealing station 20.
  • a cover film 18 is placed on the base film 11 via a deflection roller 19.
  • the sealing station 20 which comprises a lower sealing plate 20b and an upper sealing plate 20a, the cover film is
  • the sealing station 20 is followed by a further transport device 21, which is synchronized in its movement with the transport device 14 and ensures a cyclical transport of the film composite given after the sealing station 20.
  • FIG. 2a shows the already explained simplified path-time diagram of a cycle curve, for example of the forming station 13.
  • the maximum cycle time T max assumed here is 800 ms, which corresponds to a cycle rate R of 75 cycles per minute.
  • T max assumed here is 800 ms, which corresponds to a cycle rate R of 75 cycles per minute.
  • the treatment state has ended and the opening of the mold plates 13a and 13b follows, which in turn follows the path S v in the opposite direction Closing movement and takes place over a period T v2 .
  • the starting position is reached again.
  • the user determines that this total transport time T z is not sufficient, he can redefine the cycle curve.
  • the user will check whether he can shorten the duration T B of the treatment state while maintaining the current clock rate R.
  • the closing speed v s can possibly be increased, which leads to a shortening of the time period T V ⁇ .
  • it can be provided to increase the opening speed v 0 , which leads to a shortening of the time period T v2 . If one of these changes is possible without violating production or machine specifications, the user gains time which he can use to extend the total transport time T z of the film.
  • the user will reduce the clock rate R.
  • the user can then use the input device shown in FIG. 7 to determine a changed closing speed of the mold plates 13a and 13b.
  • a maximum speed V Smax is predetermined what v at a fixed closing distance S of a minimum amount of time v ⁇ m i n. Furthermore, a minimum value is specified for the closing speed, which corresponds to a maximum time period Tvi max , as shown in FIG. 3. The user has the choice of selecting any value within these limits.
  • the closing movement of the mold plates should preferably be carried out as quickly as possible. If no problems have occurred during the closing movement, the user will select the same closing speed as in the originally specified cycle curve according to FIG. 2a.
  • the selection of the closing speed is entered with the input device 30 according to FIG. 7 as a percentage of the maximum closing speed V Smax , ie 100% in the present exemplary embodiment.
  • the opening movement of the mold plates can also be changed by the user within predetermined limits in accordance with the closing movement. These limits are determined by a predetermined maximum opening speed V omax , which corresponds to a minimum opening time Tv 2 i n for a predetermined opening path S v, and a minimum opening speed V om i n , which corresponds to a maximum opening time V 2max. Between these two limits, the user has the choice of a large number of opening curves, as indicated in FIG. 5. For the opening movement, the user also enters the desired opening speed as a percentage of the maximum opening speed V omax . It is assumed that the maximum opening speed V omax is selected, which corresponds to an entry of "100%".
  • the duration of the treatment state ie the period T B in which the two mold plates are closed and the film is formed (molding station) or sealed (sealing station), can be specified by the user on the input device 30 as an absolute value in ms. According to FIG. 4, he has the choice within predetermined limits, ie between a minimum cooling time T Bm j. n and a maximum time T Bmax .
  • the user will choose the duration of the treatment state in accordance with the material-specific requirements of the base film in such a way that good treatment of the base film, for example by cooling and molding in the molding station 13, is reliably ensured. In the exemplary embodiment shown, it is assumed that it takes over the duration of the treatment state from the original cycle curve according to FIG. 2a.
  • Use transport of the base film as shown in FIG. 6, but it can also provide to use at least part of this time gained to increase the duration of the treatment state T B.
  • the user-dependent determination of the cycle curve within predetermined limits makes it possible to provide longer periods of time for the film transport and / or the duration of the treatment period without doing so slow down the closing or opening movement of the mold plates.
  • the input device 30 is assigned a processing unit 40 which determines the corresponding clock curve from the entered values and in particular checks whether the entered values of the clock curve lie within the predetermined limits and whether the clock curve overall is less than or equal to that Cycle time T max is. It is checked whether the sum of the periods T V ⁇ , T B , T V 2 is less than or equal to the cycle time T max .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

L'invention concerne un procédé de commande d'une machine de conditionnement sous blister, laquelle comprend au moins un poste de travail à fonctionnement cyclique où, pendant un cycle de travail, au moins un premier mouvement de déplacement est exécuté pendant une durée TV1, suivi par un état de traitement pendant une période TB, où un produit et/ou un matériau est traité. Ensuite, un deuxième mouvement de déplacement est exécuté pendant une durée TV2. Un dispositif de saisie permet d'entrer une cadence R (= cycles par minute) de la machine de conditionnement, ainsi que les durées TV1, TB et TV2 indépendamment l'une de l'autre et respectivement directement ou indirectement. Une unité de traitement contrôle si les durées saisies TV1, TB et TV2 se trouvent dans des limites prédéfinies et si leur somme est inférieure ou égale à une durée de cycle maximale Tmax.
EP04703359A 2003-01-23 2004-01-20 Procede de commande d'une machine de conditionnement sous blister Withdrawn EP1517835A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10302726A DE10302726A1 (de) 2003-01-23 2003-01-23 Verfahren zur Steuerung einer Blister-Verpackungsmaschine
DE10302726 2003-01-23
PCT/EP2004/000379 WO2004065220A1 (fr) 2003-01-23 2004-01-20 Procede de commande d'une machine de conditionnement sous blister

Publications (1)

Publication Number Publication Date
EP1517835A1 true EP1517835A1 (fr) 2005-03-30

Family

ID=32667804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04703359A Withdrawn EP1517835A1 (fr) 2003-01-23 2004-01-20 Procede de commande d'une machine de conditionnement sous blister

Country Status (8)

Country Link
US (1) US20050102977A1 (fr)
EP (1) EP1517835A1 (fr)
JP (1) JP2006513111A (fr)
BR (1) BRPI0403926A (fr)
CA (1) CA2478509A1 (fr)
DE (1) DE10302726A1 (fr)
MX (1) MXPA04009093A (fr)
WO (1) WO2004065220A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009017638B4 (de) † 2009-04-16 2014-05-28 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verfahren zur Steuerung einer Verpackungsmaschine und Verpackungsmaschine
US8186134B2 (en) * 2009-05-18 2012-05-29 Alkar-Rapidpak-Mp Equipment, Inc. Packaging machines and methods

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US4172347A (en) * 1978-05-03 1979-10-30 Ex-Cell-O Corporation Electronic program control
GB2138381B (en) * 1983-04-18 1987-09-30 Baker Perkins Holdings Plc Form-fill-seal wrapping apparatus
US4549386A (en) * 1983-04-18 1985-10-29 Baker Perkins Holdings Plc Form-fill-seal wrapping apparatus
DE3760028D1 (en) * 1986-01-29 1989-02-02 Uhlmann Maschf Josef Method and apparatus to compensate for the change in length, in machines for the production and separation of packages, of a foil strip formed from material which shrinks during cooling
US4662149A (en) * 1986-03-28 1987-05-05 Hamilton Joel A Table-top apparatus and method for forming sealing packages
IT1201617B (it) * 1986-12-29 1989-02-02 Ima Spa Macchina confezionatrice,particolarmente di confezioni-blisters e simili a motorizzazione plurima sincronizzata
US4897985A (en) * 1988-10-06 1990-02-06 Curwood, Inc. Continuous motion package forming machine
US4951444A (en) * 1989-02-06 1990-08-28 Durden To A.M.E. Engineering, Inc. Multi-station die-less packaging machine
FR2712253B1 (fr) * 1993-11-10 1996-01-19 Mecaplastic Procédé et dispositif de conditionnement de produits alimentaires, chimiques ou pharmaceutiques et barquettes de conditionnement correspondantes.
IT1286231B1 (it) * 1996-09-24 1998-07-08 Awax Progettazione Procedimento ed apparato per rendere veloce, affidabile e flessibile il funzionamento di una qualsiasi macchina avvolgitrice di prodotti
DE19735942C2 (de) * 1997-08-19 2000-02-03 Elau Elektronik Automations Ag Verfahren zum Betrieb einer Verpackungsmaschine mit elektrischer Königswelle sowie Verpackungsmaschine
DE19841138A1 (de) * 1998-05-05 1999-11-11 Elau Elektronik Automations Ag Verpackungsmaschine
IT1311383B1 (it) * 1999-12-30 2002-03-12 Ima Spa Metodo e apparecchiatura per la formatura di un nastro alveolato diconfezioni blister in macchine blisteratrici.

Non-Patent Citations (1)

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Title
See references of WO2004065220A1 *

Also Published As

Publication number Publication date
WO2004065220A1 (fr) 2004-08-05
MXPA04009093A (es) 2004-12-06
US20050102977A1 (en) 2005-05-19
DE10302726A1 (de) 2004-08-05
CA2478509A1 (fr) 2004-08-05
BRPI0403926A (pt) 2005-01-04
JP2006513111A (ja) 2006-04-20

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