Packaging machine having an improved adjustment function

Abstract

An apparatus comprising a packaging machine, which comprises a control unit having a process parameter generator designed to determine specific process parameters for a production process of the packaging machine. The control unit of the packaging machine also comprises a recipe generator for an adjustment process of the packaging machine preceding the production process or can be connected to a recipe generator of the apparatus, which generator is designed as a separate unit. The respective recipe generator comprises a set of rules for determining recipe variables for the adjustment process of the packaging machine and is designed to generate the recipe variables with reference to a plurality of data and to form therefrom a recipe data set for the adjustment process of the packaging machine. A method for using the apparatus is also included.

Claims

1. An apparatus comprising: a packaging machine comprising a control unit having a process parameter generator for determining one or more process parameters for a production process of the packaging machine, and a recipe generator for an adjustment process of the packaging machine, wherein the recipe generator is one of (a) a part of the control unit of the packaging machine, or (b) as a separate unit in communication with the control unit; wherein the respective recipe generator comprises a first set of rules for determining one or more recipe variables for the adjustment process of the packaging machine and generates the one or more recipe variables with reference to a plurality of data, said plurality of data comprising at least one or more of: a product to be packaged, two or more tools of the packaging machine, or a label to be applied; the recipe generator forms a recipe data set for the adjustment process of the packaging machine from the plurality of data, and wherein the process parameter generator is designed to pre-allocate the control unit with the one or more process parameters for the production process of the packaging machine which at least partially are based on the recipe variables of the recipe data set respectively generated for the adjustment process; wherein the recipe generator calculates the recipe variables independently of a process-related control system of the production process; and wherein the process parameter generator adapts the one or more process parameters using a second set of rules formed in the process parameter generator depending on two or more tool components used on the packaging machine.

2. The apparatus according to claim 1, wherein the recipe generator is a separate unit and is functionally integrated in a server or cloud system and can be connected to the process parameter generator of the control unit of the packaging machine for the adjustment process.

3. The apparatus according to claim 2 wherein the recipe generator has access to an external database which comprises the server or cloud system in order to retrieve data stored therein for the recipe generator.

4. The apparatus according to claim 1, wherein the control unit of the packaging machine comprises a database for providing data and the packaging machine comprises an HMI interface at which the data is retrieved for the recipe generator of the control unit by an operator.

5. The apparatus according to claim 4, wherein the HMI interface of the packaging machine comprises a correction function to allow the operator to one of correct or supplement at least one of the one or more recipe variables and the one or more process parameters.

6. The apparatus according to claim 1, wherein the packaging machine comprises a reading device being designed as RFID scanner which is configured to read the data for generating the one or more recipe variables from an RFID chip placed on the product, a packaging material, the two or more tools, the label and/or a film material and to pass it on to the recipe generator.

7. The apparatus according to claim 1, wherein the control unit of the packaging machine comprises a recipe storage on which several recipe data sets generated for the adjustment process can be stored and are available for subsequent adjustment processes.

8. The apparatus according to claim 1, wherein the first set of rules of the recipe generator is functionally changeable and/or expandable.

9. The apparatus according to claim 1, wherein the packaging machine is a deep-drawing packaging machine comprising a molding station, and the recipe generator is provided with a rule for determining a heating time as one of the one or more recipe variables for preheating a lower film used for the production process, wherein the recipe generator by using the rule determines the heating time using the data concerning a film thickness of the lower film.

10. The apparatus according to claim 9, wherein the recipe generator has a rule for determining a molding time as one of the one or more recipe variables for molding the lower film, wherein the recipe generator by using the rule determines the molding time as a fraction of the heating time.

11. The apparatus according to claim 1, wherein the packaging machine comprises a sealing station and the recipe generator includes a rule for determining a sealing temperature as one of the one or more recipe variables for producing a sealing seam, wherein the recipe generator uses the rule to determine the sealing temperature based on a film thickness of two or more film sections to be sealed.

12. The apparatus according to claim 11, wherein the recipe generator comprises a second rule for determining a sealing force as another one of the one or more recipe variables for producing the sealing seam, wherein the recipe generator uses the second rule to calculate the sealing force in consideration of a sealing pressure applicable at the sealing station and a sealing surface to be generated.

13. A method for generating one or more specific process parameter based on a recipe data set for an adjustment process of a packaging machine, wherein a recipe generator is one of (a) a part of the packaging machine, or (b) is a separate unit that is functionally connected to the packaging machine, the method comprising the steps of: generating one or more recipe variables of the recipe data set using a first set of rules formed in the recipe generator for the adjustment process of the packaging machine with reference to a plurality of data, the plurality of data comprising data relating to at least one or more of: a product to be packaged, two or more tools of the packaging machine, or a label to be applied; generating one or more process parameter from the recipe data set using a process parameter generator of the packaging machine for the adjustment process of the packaging machine, preallocating a control unit for a production process on the packaging machine using at least partially the one or more process parameter; autonomously producing the one or more recipe variables using the recipe generator without being integrated into a process-related control circuit of the production process by calculating the recipe variables independent of a control system of an actual production process; and adapting the one or more process parameter using a second set of rules formed in the process parameter generator depending on two or more tool components of the packaging machine for generating the one or more specific process parameter.

Description

DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

(1) In the following, an advantageous embodiment of the present invention will be explained in more detail making reference to a drawing, in which the individual figures show:

(2) FIG. 1 is a schematic view of one embodiment of the invention in accordance with the teachings of the present disclosure; and

(3) FIG. 2 is a schematic view of one embodiment of a deep-drawing packaging machine in accordance with the teachings of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

(4) The invention will now be described with reference to the drawing figures, in which like reference numerals refer to like parts throughout. For purposes of clarity in illustrating the characteristics of the present invention, proportional relationships of the elements have not necessarily been maintained in the drawing figures.

(5) The following detailed description of the invention references specific embodiments in which the invention can be practiced. The embodiments are intended to describe aspects of the invention in sufficient detail to enable those skilled in the art to practice the invention.

(6) Other embodiments can be utilized and changes can be made without departing from the scope of the present invention. The present invention is defined by the appended claims and the description is, therefore, not to be taken in a limiting sense and shall not limit the scope of equivalents to which such claims are entitled.

(7) FIG. 1 shows in a schematic view a functional diagram for an adjustment process E of a packaging machine 100 shown in FIG. 2.

(8) In adjustment process E, initially, data I, in particular product data I1, packaging type data I2, packaging material data I3, tool data I4, and label data I5 are retrieved by means of an RFID or HMI application or as data of a mechatronic tool on the packaging machine 100. The data I could also be retrieved on at least a PC 200 remote from the packaging machine 100 (see FIG. 2).

(9) By selecting the data I, a corresponding access to the database DB occurs, in particular to database partitions DB1, DB2, DB3, DB4, and DB5 associated to the database DB. The respective database partitions DB1, DB2, DB3, DB4, and DB5 by means of the selected data I1, I2, I3, I4; and I5 are designed to send corresponding and/or supplementing data and/or data calculated therefrom to a recipe generator RG as input values. The recipe generator RG may be configured as a part in a control unit 1 associated to the packaging machine 100, on a server system 10 and/or in a cloud system 20.

(10) The database DB may be configured as a part of the recipe generator RG, in particular in the server or cloud system 10, 20 and/or in the control unit 1. In the database DB, a plurality of raw data as well as data sets D are contained which can be activated according to the data input. The database DB thereby links the data I with the associated data D1, D2, D3, D4, D5 which correspond to the received data I1, I2, I3, I4, and I5 or are derived therefrom and which are made available to the recipe generator RG as input values. Thereby, the data D1, D2, D3, D4, D5 issued by the database DB are intended to be further processed by means of a set of rules provided on the recipe generator RG.

(11) The recipe generator RG comprises the set of rules RW as own processor which is configured to calculate recipe variables RV as initial values of the recipe generator RG by means of rules, tables, formulas, algorithms, in particular statistical algorithms, and/or data sets. Thereafter, the recipe variables RV are stored as recipe data set RD in a recipe storage S. The recipe data set RD now forms a universal recipe comprising several provisional process data, wherein further specific process data, as described in the following, can be considered for pre-allocating the control unit 1 in order to optimally pre-allocate the control unit 1 for a production process H with appropriate process parameters so that in this regard, the packaging machine 100 can start the production process H.

(12) For this purpose, the recipe data set RD can be retrieved from the storage S of the control unit 1. The control unit 1 transmits the recipe data set RD to the process parameter generator PG which preferably is associated to the control unit 1, wherein the control unit 1 further is configured to send specific machine, packaging, tool and/or product data SD to the process parameter generator PG which forms process parameter P as target values for pre-allocating the control unit 1 by means of a production process specific set of rules RW which is associated thereto.

(13) FIG. 2 shows an apparatus V comprising a packaging machine 100 which is configured as deep-drawing packaging machine. The packaging machine 100 comprises an unwinding station 3 for a lower film U, a molding station 4 for production of packaging troughs M which are transported to a sealing station 6 by means of a conveyor unit 5, and a further unwinding station 7 for providing an upper film O which can be sealed in the sealing station 6 to a provided packaging trough P. Further, the packaging machine 100 comprises a labeling machine 8 and a separation unit 9.

(14) An HMI interface 12 is arranged at a machine frame 11 of the packaging machine 100. At the HMI interface 11, an operator can select the data I described above in connection with FIG. 1.

(15) FIG. 2 also shows that the packaging machine 100 comprises a control unit 1. The control unit 1 according to FIG. 2 comprises the recipe generator RG, the database DB, the process parameter generator PG as well as the recipe storage RS.

(16) The packaging machine 100 further comprises a reading device 50 being designed as an RFID scanner which is configured to read the data I for generating the recipe variables RV from a not shown RFID tag placed on the product, the packaging material, the tool, the label and/or the film material and to pass it on to the recipe generator RG.

(17) Further, FIG. 2 illustrates an alternative application in which a recipe generator RG′ is configured together with a recipe storage RS' and a database DB′ locally separated from the packaging machine 100 as a separate unit. This can be functionally integrated in the server or cloud system 10, 20, wherein by means of the PC 200, an activation of the recipe generator RG′ as well as production of the process parameter by means of the process parameter generator PG′ can be carried out. The recipe generator RG′ then can transfer the produced process parameter to the control unit 1. It is also feasible that by means of the PC 200, the recipe generator RG formed in the control unit 1 can be controlled.

(18) From the foregoing, it will be seen that this invention is one well adapted to attain all the ends and objects hereinabove set forth together with other advantages which are obvious and which are inherent to the structure. It will be understood that certain features and sub combinations are of utility and may be employed without reference to other features and sub combinations. This is contemplated by and is within the scope of the claims. Since many possible embodiments of the invention may be made without departing from the scope thereof, it is also to be understood that all matters herein set forth or shown in the accompanying drawings are to be interpreted as illustrative and not limiting.

(19) The constructions and methods described above and illustrated in the drawings are presented by way of example only and are not intended to limit the concepts and principles of the present invention. Thus, there has been shown and described several embodiments of a novel invention.

(20) As is evident from the foregoing description, certain aspects of the present invention are not limited by the particular details of the examples illustrated herein, and it is therefore contemplated that other modifications and applications, or equivalents thereof, will occur to those skilled in the art. The terms “having” and “including” and similar terms as used in the foregoing specification are used in the sense of “optional” or “may include” and not as “required”. Many changes, modifications, variations and other uses and applications of the present construction will, however, become apparent to those skilled in the art after considering the specification and the accompanying drawings. All such changes, modifications, variations and other uses and applications which do not depart from the spirit and scope of the invention are deemed to be covered by the invention which is limited only by the claims which follow.