1. Technical Field
The invention relates to a method of controlling a production and packaging installation—line—having production units having respectively adjustable mechanisms, such as, in particular, a (cigarette-) production machine (maker), a packaging machine (packer), possibly a film-wrapping machine, possibly a multipacker and possibly a carton packer (cartoner), for the production and, in particular, ready-to-dispatch packaging of, in the first instance, products—cigarettes and cigarette packs—of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like.
The invention also relates to a control arrangement for implementing the method. Finally, the invention relates to a production and packaging installation—line—having a control arrangement and production units having respectively adjustable mechanisms, as mentioned above, for the production and, in particular, ready-to-dispatch packaging of, in the first instance, products—cigarettes and cigarette packs—of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like.
2. Prior Art
DE 199 14 297 discloses a method of the generic type and a corresponding arrangement.
The object of the invention is to improve the production and packaging installation and the method of controlling such an installation.
The object is achieved by a production and packaging installation—referred to hereinbelow as “line” for short—having a control arrangement and production units having respectively adjustable mechanisms, such as, in particular, a
(cigarette-) production machine (maker), a packaging machine (packer), possibly a film-wrapping machine, possibly a multipacker and possibly a carton packer (cartoner), for the production and, in particular, ready-to-dispatch packaging of, in the first instance, products, such as cigarettes and cigarette packs, of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like, in that at least a first set of parameters associated with products of the first type and a second set of parameters associated with products of the second type are stored in a selectable manner in a memory of the control arrangement and, upon selection of a set of parameters, a manipulated variable for adjusting the or each adjustable mechanism can be transmitted to the or each production unit by the control arrangement, by way of the selected parameters. Any components of a functional unit which can be effected by a manipulated variable is referred to as an adjustable mechanism. A component which can be influenced in terms of its relative position by a position-describing manipulated variable is likewise an adjustable mechanism, for example a heater which can be influenced by a desired temperature or an optical sensor which can be influenced by a threshold value for stipulating a response threshold.
The object is likewise achieved by production and packaging installations having a control arrangement and production units having respectively adjustable mechanisms, such as, in particular, a (cigarette-) production machine (maker), a packaging machine (packer), possibly a film-wrapping machine, possibly a multipacker and possibly a carton packer (cartoner), for the production and, in particular, ready-to-dispatch packaging of, in the first instance, products—cigarettes and cigarette packs—of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like, wherein at least a first set of parameters associated with products of the first type and a second set of parameters associated with products of the second type, this set comprising a code for each required starting material, are stored in a selectable manner in a memory of the control arrangement, and wherein either a material code can be determined for the starting material present at the or each production unit and upon selection of a set of parameters, the material code of the starting material present at the or each production unit can be compared with the corresponding code from the selected set of parameters, or the starting material which can be used in the or each production unit comprises a readable material code and upon selection of a set of parameters, the or each production unit can be fed usable starting material by way of the code from the selected set of parameters.
The object also likewise is achieved by production and packaging installations having a control arrangement and production units having respectively adjustable mechanisms, such as, in particular, a (cigarette-) production machine (maker), a packaging machine (packer), possibly a film-wrapping machine, possibly a multipacker and possibly a carton packer (cartoner), for the production and, in particular, ready-to-dispatch packaging of, in the first instance, products—cigarettes and cigarette packs—of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like, wherein at least a first set of parameters associated with products of the first type and a second set of parameters associated with products of the second type are stored in a selectable manner in a memory of the control arrangement, wherein each set of parameters contains a number of necessary starting materials, wherein at least one product-type-related set of parameters for linking up starting materials is stored in the memory, and wherein, upon selection of a set of parameters, a manipulated variable for adjusting the or each adjustable mechanism can be transmitted to the or each production unit by the control arrangement, by way of the selected parameters and/or of the product-type-related set of parameters.
Furthermore, the object is achieved by a corresponding method of controlling a production and packaging installation—line—having production units having respectively adjustable mechanisms, such as, in particular, a (cigarette-) production machine (maker, a packaging machine (packer), possibly a film-wrapping machine, possibly a multipacker and possibly a carton packer (cartoner), for the production and, in particular, ready-to dispatch packaging of, in the first instance, products—cigarettes and cigarette packs—of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like, wherein, in order to change over from products of the first type to products of the second type, a related set of parameters is selected, and wherein an adjustment of the or each adjustable mechanism of the or each production unit takes place by way of the selected parameters.
The object likewise is achieved by a corresponding method of controlling a production and packaging installation—line—having production units having respectively adjustable mechanism, such as, in particular, a (cigarette-) production machine (maker, a packaging machine (packer, possibly a film-wrapping machine, possibly a multipacker and possibly a carton packer (cartoner), for the production and, in particular, ready-to dispatch packaging of, in the first instance, products—cigarettes and cigarette packs—of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like, wherein, in order to change over from products of the first type to products of the second type, a set of related parameters, which comprises a code for each required starting material, is selected, and wherein either a material code is determined for the starting material present at the or each production unit and the material code of the starting material present at the or each production unit is compared with the corresponding code from the selected set of parameters, or upon selection of a set of parameters, the or each production unit is fed usable starting material by way of the code from the selected set of parameters and of a readable material code of the starting material.
The object likewise is achieved by a corresponding method of controlling a production and packaging installation—line—having production units having respectively adjustable mechanisms, such as, in particular, a (cigarette-) production machine (maker, a packaging machine (packer), possibly a film-wrapping machine, possibly a multipacker and possibly a carton packer (cartoner), for the production and, in particular, ready-to-dispatch packaging of, in the first instance, products—cigarettes and cigarette packs—of a first type and, thereafter, products of a second type each comprising starting materials, in particular blanks such as paper or cardboard blanks, film and the like, wherein, in order to change over from products of the first type to products of the second type, a set of related parameters, which comprises a number of necessary starting materials, is selected, and wherein, upon selection of a set of parameters, a manipulated variable for adjusting the or each adjustable mechanism is transmitted to the or each production unit by the control arrangement, by way of the selected parameters and of a product-type-related set of parameters which comprises predetermined or preterminable links between starting materials and, for each link, at least one manipulated variable for adjusting an adjustable mechanism.
The object likewise is achieved by a control arrangement which is suitable for implementing the or each method having a memory and at least one communications interface, wherein at least a first set of parameters associated with products of the first type and a second set of parameters associated with products of the second type are stored in a selectable manner in the memory, and wherein, upon selection of a set of parameters, a manipulated variable can be transmitted to the or each production unit via the communications interface, for the purpose of adjusting the or each adjustable mechanism.
The invention is based on the finding that, during changeover from a product of a first type to a product of a second type, on the one hand, an unnecessarily long period of time elapses because high-outlay adjustments have to be made to individual production units or all the production units, appropriate starting material has to be supplied or the starting material which is present has to be checked for suitability for use for a product of the second type and, on the other hand, following the changeover, incorrect production takes place to a considerable extent until, finally, the operating staff has adjusted all the production units correctly, during operation of the line, to the product which is to be produced. A set of parameters is thus provided for each product. For changeover from products of a first type to products of a second type, the corresponding set of parameters is selected, for example, at an operating station having input and output functions such as a screen and keyboard. By way of the selected parameters, suitable adjustment of the or each adjustable mechanism of the or each production unit and/or checking or supply of the starting material, or of starting material, then take place automatically.
The advantage of the invention is that, following this adjustment and/or the checking or supply of starting material, the production and, in particular, ready-to-dispatch packaging of the product of the second type can begin immediately, with the result that standstill periods are reduced. Furthermore, the individual production units are adjusted optimally to the product of the second type, with the result that any possible incorrect production is prevented. Expedient developments of the line, of the method and of the control arrangement form the subject matter of respectively subordinate claims.
A preferred exemplary embodiment of the invention is explained in more detail hereinbelow with reference to the drawing, in which:
a and 9b show a schematic illustration of the data used during changeover from a product of a first type to a product of a second type, of the relationships between the same and of the use thereof for adjusting adjustable mechanisms, and
The exemplary embodiment illustrated in the drawings relates to a production and packaging installation for cigarettes, that is to say a so-called line. This line comprises production units, namely, for example, a cigarette-production machine, namely a maker 10, a packaging machine following the latter, that is to say a packer 11, a subsequent film-wrapping machine 12, a packaging machine for producing multipacks from a plurality of cigarette packs 48, that is to say a multipacker 13, and a cartoner 14, which packages the multipacks, that is to say cigarette multipacks, in a shipping carton. The cigarettes produced by the maker 10 are fed by a cigarette conveyor 15, with an associated cigarette store 16, to the packer 11, e.g. a hinge-lid packer for producing hinge-lid boxes. The packer 11 is assigned a blank store 17, that is to say a device for accommodating a relatively large supply of prefabricated blanks for the hinge-lid box, the blank store having conveying mechanisms for feeding blank stacks to the packer 11. The (cigarette) packs 48 produced by the packer 11 are fed, via a pack conveyor 18, to the film-wrapping machine 12. The latter has the task of wrapping the cigarette packs 48 in an outer film or plastic blank. The finished cigarette packs 48 are used to form pack groups, which are provided with a multipack wrapper in the region of the multipacker 13 and thus produce a cigarette multipack comprising usually ten cigarette packs 48. These cigarette multipacks are fed, by a multipack conveyor 19, to the cartoner 14. The latter transfers finished shipping cartons 20, with a plurality of cigarette multipacks, to a removal conveyor 21. Located in the region of the pack conveyor 18, between the packer 11 and film-wrapping machine 12, is a pack store 22 for accommodating a relatively large number of cigarette packs 48 (without outer wrapper).
The above-described production units have to be supplied with material. The maker 10 has to be fed a sufficient quantity of tobacco and also cigarette paper in the form of wound webs, namely reels. Furthermore, the maker 10 likewise has to be fed filter-attachment paper wound in the form of reels, in order that the cigarettes produced can be supplied with the appropriate material in the region of a filter-attachment machine 23. The other production units likewise have to be fed packaging material in wound webs, that is to say in the form of reels. This applies to the production of a collar which is customary in cigarette packs 48 of the hinge-lid-box type, and also to an inner wrapper, a so-called inner liner of the cigarette group, and to the outer wrapper made of film or cellophane. A central storage area 24 is provided for all the material, the reels 25 of different materials being stored, for example, on pallets in this storage area. A suitable conveying arrangement, for example a common material conveyor 26, can be displaced along a conveying path 27 between the storage area 24 and the individual production units for the purpose of feeding the reel material as required. In the case of the example shown, the storage area 24 may be constructed such that filter-attachment paper 28, collar material 29, inner-liner material 30, film material 31 and cigarette paper 32 are positioned in the region of the conveying path 27 in order to be received by the material conveyor 26, to be precise in each case in a favorable position relative to the associated production unit.
The sequence from the production of the cigarettes to the production of the finished shipping cartons 20 filled with cigarette multipacks takes place under the control of a control arrangement 33, which is connected communicatively to each production unit, specifically to a respective machine controller 35 assigned locally to the or each production unit, for example via a bus, in particular a field bus 34 or a local network, in particular a PC network. Via the field bus 34, the control arrangement 33 exchanges data with a or each production unit in each case and, in the process, transmits, for example, manipulated variables to the respective production unit or receives production-related data. The control arrangement 33 is, for example, a process computer or a central processing unit of a programmable controller. Codes for all the materials used during production and packaging of the cigarettes are stored in a suitable data structure in a memory (not illustrated) of the control arrangement 33. Allocation of a material to at least one production unit in each case is likewise stored by way of the code in this memory.
In order to fold a respective blank 37, 38, the packer 11 (
The film-wrapping machine 12 wraps cigarette packs 48 in a film; for this purpose, it processes a film web (cellophane web 49) and, if appropriate, a tear-open thread. The essentially horizontal conveying path of the cigarette packs 48 through the film-wrapping machine 12 is illustrated by corresponding arrows. The wrapping film 64 (
A mechanism of the film-wrapping machine 12, a label apparatus, provides the cigarette packs 48 with a label 53, e.g. a revenue stamp. In order to check the presence and position of the label 53, a CCD camera 54 is provided as a further adjustable mechanism. The adjustment of the CCD camera 54 consists essentially in the stipulation of, for example, threshold or limit values, in order for it to be possible to distinguish, for example, a label 53 of relatively low average brightness from one with relatively high average brightness. Furthermore, in a CCD camera 54 which is suitable for detecting straightforward optical structures, e.g. edges, it is possible to transmit, for adjustment purposes, data relating to type, number and position of the expected edges, in order for it to be possible to distinguish a label 53 with a first edge pattern from one with a different edge pattern. Finally, it is possible, for adjustment purposes, for data relating to an expected position of the label 53 on the cigarette pack 48 or further data relating to the appearance or to appearance features, such as gray components, contrast or pattern, etc. of the label 53, to be transmitted to the CCD camera 54. It is also possible here for a number of different images for representing respectively different labels 53 and for comparison with the respectively detected labels 53 to be transmitted to the CCD camera 54. It is thus possible to distinguish incorrectly positioned, absent or incorrect labels 53 from correct labels 53. The correct position of a label 53 may vary in dependence on the cigarette packs 48 produced.
a and 9b show a first and second set of parameters 61 and 62 and illustrate the effects on adjustable mechanisms of individual production units upon selection of a set of parameters 61, 62. The data contained in a set of parameters 61, 62, the parameters, are illustrated by corresponding picture symbols. First and second sets of parameters 61, 62 are stored, if appropriate, together with further sets of parameters (not illustrated) in a memory region 63, e.g. of a memory of the control arrangement 33 (
In
The changeover from products of the first type to products of the second type takes place, for example, by the second set of parameters 62 being selected instead of the previously selected first set of parameters 61. (Data which are selected or determined as being appropriate are identified by solid arrows or filled-in arrow tips, in contrast to the non-selected or inappropriate data, which is identified by dashed arrows). This selection is made by an operator, for example, by means of an input and output unit, for example a keyboard and screen of the control arrangement 33 (
Upon determination of a code 65 from the selected set of parameters 62 which matches a material code, a manipulated variable, for adjusting the or each adjustable mechanism of the production unit, which is associated with the code 65 determined or the material code picked up, is transmitted to the respective production unit. The or each manipulated variable here is taken either from the selected set of parameters 62 or from the database 66, access to the respective manipulated variable being possible by way of the code 65 determined or the material code picked up, in the manner of an index or the like.
Either on a continuous basis during the production process, but at least prior to the adjustment of the adjustable mechanisms in accordance with the data of the selected set of parameters 62, that is to say during product changeover, material-specific data 68, e.g. consumption or reject or disruption quotas, are filed, by way of the code 65 or material code, in a production data acquisition means 67, in order to detect which material is best suited for the production process. This material-specific data 68 is accessed by way of a code 65, if appropriate the same code 65 which is also used in the set of parameters 61, 62, in the manner of an index. The respective material-specific data 68 are presented as a picture symbol in the form of a floppy disk. The production data acquisition 67 takes place separately, in particular, for different products, that is to say, for example, for different types of cigarette packs 48.
Prior to the adjustment of the adjustable mechanisms in accordance with the data of the database 66 (or of the selected set of parameters 62), the hitherto valid settings of the or each production unit and/or of the or each adjustable mechanism are stored for possible subsequent reuse. The settings which are stored in this way can also deviate from the manipulated variables stored and can even replace these, if appropriate, if the settings are based on adaptations carried out by the operating staff. It is then possible to select whether the last-valid settings have improved the production sequence. If this is the case, the associated manipulated variables in the database 66 are modified correspondingly. This allows continuous improvement of the production sequence in the manner of an evolutionary strategy. The data which are stored in this way include, for example, the data relating to the adjustment of the CCD camera 54, as has been explained above. The storage of the last-valid settings prior to the product changeover is illustrated by a set of data 73 assigned to the respective machine controller 35. The set of data 73 comprises data relating to the adjustment of the adjustable mechanism for producing the product of the first type, such as the cigarette pack 48, which have been used in the production process up until the product changeover (arrow from the dashed-line cigarette pack 48 to the set of data 73). For subsequent reuse, individual data or all the data are accepted into the database 66, for example, in accordance with selection by an operator.
A cam plate 57 (see also
The or each manipulated variable determined in each case is transmitted from the database 66 (or the selected set of parameters 62) to the respective functional unit or the machine controller 35 thereof and, in the case of a movable adjustable mechanism, brings about, for example, a change in a relative position in relation to a reference position. In the case of the label apparatus, the transmission of the manipulated variable causes, for example, the rotary offset of the cam plate 57 of the film-wrapping machine 12 to be influenced. The transmission of the manipulated variable also gives rise, for example, to the suitable evaluation of the data supplied by the light barrier 50, in the form of an optical sensor, of the film-wrapping machine 12 and to an adaptation of the temperature of the heater 51 of the sealing mechanism of the film-wrapping machine 12. Finally, the transmission of the manipulated variable gives rise, for example, to the adjustment of a cutting length for cutting film blanks from the wrapping film 64.
The database 66 is accessed by way of the respective code 65 of the selected or supplied starting material. The database 66 is realized in the memory essentially as a field, referred to hereinbelow as a product-type-related set of parameters 74, with a number of field elements. Each product-type-related set of parameters 74 corresponds with a product, e.g. a cigarette pack 48, and comprises in turn, as a field with a number of field elements, a matrix, of which the columns 75 are assigned to individual starting materials or machine configurations and the rows 76 are assigned to the respective manipulated variables. If a starting material requires influencing of a manipulated variable, that is to say adjustment of an adjustable mechanism, the code 65 of the starting material is entered in the field assigned to the respective column 75 and row 76. When a code 65 of a starting material which is admissible and recognized as being appropriate, is transmitted to the database 66, a corresponding code 65 is searched for in the database 66. If the code 65 is found in the database 66, the or each manipulated variable of the field element to which the code 65 which has been found is assigned is transmitted to a functional unit, which can likewise be identified by way of the code 65, or the machine controller 35 of this functional unit, for adjustment of the or each adjustable mechanism. In the case of blanks 37, 38, the product-type-related set of parameters 74 comprises, for example, manipulated variables for adjusting a folding mechanism for folding the cigarette box and/or manipulated variables for adjusting glue nozzles for applying the necessary pattern of glue. In the case of the wrapping film 64, the product-type-related set of parameters 74 comprises, for example, manipulated variables for adjusting an optical sensor, such as a light barrier 50 (see also
The or each product-type-related set of parameters 74 can be extended or updated during operation of the line. For extending the set of parameters, additional codes 65 of individual starting materials or of a plurality of starting materials are picked up and a further row 76 with a manipulated variable assigned to the starting material or materials is generated in the process. For updating, in the case of an existing row 76, the manipulated variable is adapted to more favorable values determined during operation of the line. The operation of extending or updating the product-type-related set of parameters 74 is transparent to the user. That is to say, the user, the line operator, actuates, for example, a button or key for accepting the data from current production. The associated product-type-related set of parameters 74 is then determined in relation to the respectively finished product, that is to say, for example, in relation to the finished cigarette pack 48. This set of parameters is searched for appropriate codes 64 for each starting material used and, in the case of a code 64 being found, the respectively associated manipulated variable is updated. If the code of a starting material is not found, a new row 76 is generated and, in this row 76, the code 64 of the starting material is entered in the column 75 of the respective starting material. The associated manipulated variable is entered in the same row 76. In order to establish which of the various manipulated variables is entered for a code 64 in the product-type-related set of parameters 74, the starting material(s) on which a manipulated variable may be dependent is stored for each manipulated variable. A dependency on a plurality of starting materials is indicated by the symbol “⊕” in the illustration. The manipulated variable for adjusting the light barrier 50 is only dependent on the wrapping film 64 used. The manipulated variable for adjusting the heater 51 is dependent on the combination of wrapping film 64 and blank 37, and the manipulated variable for adjusting the cam plate 57 is dependent on the combination of blank 37 and label 53.
In addition to starting materials, at least one column 75 for machine configurations, which can likewise influence the adjustment of adjustable mechanisms, is provided in the product-type-related set of parameters 74. An example of such a machine configuration is an adjustment curve 77 for a cutting arrangement for severing the wrapping film 64. A machine-configuration value 78 which describes the machine configuration is entered in the appropriate column. The numerical value “06” indicates the sixth stage of readjustment of the cutting arrangement on account of wear. The row 76 with the machine-configuration value 78 is used when use is made of a wrapping film 64 together with a blank 37 with the codes 65 specified in the row 76 and when the cutting arrangement is in the readjustment stage specified as the machine-configuration value 78. A manipulated variable which influences the length of individual film blanks is then output to the machine controller 35. It is also possible for the product-type-related set of parameters 74 to be extended or supplemented in relation to such machine configurations. That is to say, if the cutting device is only in the third readjustment stage and the operator accepts current data and retrieves the product-type-related set of parameters 74, a further row 76 is generated, this further row comprising the codes 65 of wrapping film 64 and blank 37, the numerical value “03” as machine-configuration value 78, and the current manipulated variable for the stipulation of the length of the film blank.
The sets of parameters 61, 62 and the database 66 and the production data acquisition 67 may be stored, for example, in the memory of the control arrangement 33. As an alternative, it is also possible for the sets of parameters 61, 62 and/or the database 66 and/or the production data acquisition 67 to be stored in a distributed manner, that is to say, for example, in a memory of each machine controller. This renders superfluous, if appropriate, the control arrangement 33 in the form of a central controller, with the result that each production unit can be controlled by a dedicated, decentralized machine controller 35. It is also possible to have individual optimization of the parameters for adjusting adjustable mechanisms for each machine controller 35.
Number | Date | Country | Kind |
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102 09 753.4 | Mar 2002 | DE | national |
The above-captioned patent application is the Unites States Patent Cooperation Treaty (PCT) Chapter II National Phase of International Application No. PCT/EP03/02236, having an International Application Date of 5 Mar. 2003, which in turn claims priority on German Patent Application No. 10209753.4, having a filing date of 6 Mar. 2002, designating the United States of America.
Filing Document | Filing Date | Country | Kind |
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PCT/EP03/02236 | 3/5/2003 | WO |