METHOD AND DEVICE FOR MANUFACTURING A PACKAGING MATERIAL PRODUCT

Description

[0001] The present invention relates to a method and a device for producing a two-dimensional or three-dimensional packaging material product from a supply of packaging material, for example from a single-layer or multi-layer paper web, cardboard, in particular corrugated cardboard, wherein in particular the paper consists of waste paper and / or is made from 100% recyclable waste paper.

[0002] Packaging material product devices of the generic type, such as those described, for example, in the applicant's publication DE 10 2014 016 874 A1, generally disclose a feed mechanism for drawing the starting material, such as a paper web, into the device, as well as a discharge device that removes the produced packaging material product from the device. Furthermore, a cutting device is provided for separating the packaging material product from the strand or web-shaped supply of packaging material.

[0003] Such a packaging material production machine is shown in EP 1 645 407 B1. It features a control system coupled to both the infeed and the cutting unit. The control system has several switches and pushbuttons for operating and controlling the machine, including a main switch and an emergency stop switch for de-energizing the machine, a start button for initiating the control system, and a selector switch with three different positions for switching between various operating modes. A further input button allows the desired packaging material product length to be set when the main switch, the emergency stop switch, and the selector switch are all in a specific position.The control system is designed so that the packaging material length produced by pressing and releasing the input button is automatically stored in the control unit's memory and made available for later use. By briefly pressing the input button, the machine produces another packaging material product of the preset length. The control system also features a second selector switch that allows the user to select multiple memory locations within the control unit. This enables access to different stored packaging material product lengths, allowing the production of packaging material products of varying lengths.

[0004] The complexity and large number of individual selection / input buttons or switches on the machine according to EP 1 645 407 B1 have proven to be disadvantages. A further disadvantage of the packaging material production machine according to EP 1 645 407 B1 lies in the setting of desired packaging material product lengths. According to EP 1 645 407 B1, setting or changing a desired packaging material product length is very imprecise. This is because, while the packaging material product length to be produced is being set or changed, the packaging material production machine continues to feed the material at the high speed intended for operation.

[0005] From DE 31 114 470 A1 a device and a method for producing a packaging material product from a web-shaped packaging material, in which in an operating mode the web-shaped packaging material is fed in at an operating speed and is cut to a length predefined with respect to the longitudinal direction of the web to form a packaging material product.

[0006] WO 2019 023 035 A1 discloses a packaging material conversion machine and a corresponding method. It is an object of the present invention to overcome the disadvantages of the prior art, in particular to provide a method and a device for producing packaging material products in which setting and, if necessary, changing a desired packaging material product length is simplified and / or more precise.

[0007] The problem is solved by the subject matter of claims 1 and 11.

[0008] A method for manufacturing a packaging material product from a web-shaped packaging material is provided. In particular, the method relates to the production of packaging material blanks of the desired length in the longitudinal direction of the web. The packaging material web can be made of paper, such as recycled paper, especially waste paper, and / or 100% recyclable paper, which may be manufactured without chemical additives. Recycled paper refers in particular to paper materials with a low proportion (less than 50%) of virgin fiber paper. For example, paper materials containing 70% to 100% waste paper are used.The recycled paper within the meaning of this invention can be paper material that has a tensile strength index longitudinally to the machine direction of at most 90 Nm / g, preferably a tensile strength of 15 Nm / g to 60 Nm / g, and a tensile strength index transversely to the machine direction of at most 60 Nm / g, preferably a tensile strength of 5 Nm / g to 40 Nm / g. For determining the tensile strength or the tensile strength index, a standard such as DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used. In addition, or alternatively, a recycled paper property can be characterized by its so-called burst resistance. A material in this sense is recycled paper with a burst index of at most 3.0 kPa*m^2 / g, preferably with a burst index of 0.8 kPa*m^2 / g to 2.5 kPa*m^2 / g. The burst index is determined according to the standard DIN EN ISO 2758.Furthermore, the packaging material has a basis weight of, in particular, 40 g / m² to a maximum of 140 g / m². According to the invention, the starting packaging material can be in the form of a roll of material or a zigzag-folded stack of packaging material, which is also referred to as a leporello stack.

[0009] For example, the inventive method can be used to produce packaging material manufacturing machines for manufacturing packaging material products from a web-shaped packaging material. Exemplary packaging material manufacturing machines are described in the applicant's patent applications DE102014016874.3, DE102018009733.2 and DE102019104029.9.

[0010] In the method according to the invention, the web-shaped packaging material, for example from a pre-fabricated supply of packaging material, for example in roll form or in accordion-fold form, is fed at an operating speed V0 and cut to a predefined initial length L0 with respect to the longitudinal direction of the web to form a packaging material product, such as a flat packaging material web blank, a tubular, three-dimensional packaging material strand, or the like. The cutting of the packaging material product can be carried out, for example, by a cutting unit of the packaging material production machine, such as a cutting station, for example with a rotary cutter or a translational guillotine-type cutter. According to the method, it can be provided that an initial length is predefined.The initial length can be specified, for example, by user input from an operator or retrieved from internal or separate memory within the packaging material production machine. The initial length L0 can be specific to a particular packaging material production machine, for example, due to technical requirements and / or machine-specific characteristics. Each initial length L0 of a packaging material production machine can, for instance, be a minimum length specific to that machine.Furthermore, the initial length L0 can be determined for the packaged item based on desired packaging material properties, in particular target packaging material properties such as target cushioning properties, and / or set taking into account the operator's experience, packaging specifications, and / or information stored in a separate or higher-level memory. Different initial lengths L0 can be stored in a separate or higher-level memory, resulting, for example, from the packaging specifications for differently dimensioned shipping items.

[0011] According to the invention, to change the predefined initial length L0 to a different length L2, the web-shaped packaging material is fed in at a learning speed v2 that is lower than the operating speed v0. A particular advantage of the reduced learning speed v2 compared to the operating speed v0 for setting a new initial length L0' (the length L2) is that an operator can set the desired new length L2 much more easily and accurately. The new initial lengths L0' to be learned or already learned can be determined based on desired packaging material product properties, in particular target packaging material product properties such as target cushioning properties, and / or set taking into account the operator's experience, packaging specifications, and / or information stored in a separate or higher-level memory.Different initial lengths L0 can be stored in a separate or higher-level memory, which may result, for example, from packaging specifications for differently sized shipping items. A further advantage is that the operator can immediately see whether the packaging material production machine is in operating mode or in learning mode, so that they can react immediately if it is determined that the packaging material product length produced in the respective mode is not desired.

[0012] According to an exemplary further development of the method according to the invention, the learning speed v2 is in the range of 1%, in particular 10%, 20%, 30% or 40%, up to 99% of the operating speed v0. It has been found that, depending on the packaging material product to be manufactured and the packaging material used, different learning speeds are particularly suitable for changing the initial length L0 and for learning a new initial length L0'.

[0013] In a further exemplary embodiment of the method according to the invention, in an operating mode, the packaging material is fed in at the operating speed v2 and a packaging material product of the predefined length L0 is produced. The method can provide that the operating mode can be entered by pressing an operating button and, based on this, a packaging material product of the predefined initial length L0 is automatically produced at the operating speed v0. In the method according to the invention, in a learning mode, the packaging material is fed in at the learning speed v2 and a packaging material product of a length L2, which differs from the initial length L0, is produced at the learning speed v2.

[0014] It is also conceivable that the learning mode is activated by pressing another button, such as a learning button, or by pressing the operating button and / or the learning button in sequence. In learning mode, it may be provided that initially only exactly one packaging material product of the learned length L2, which differs from the initial length L0, is produced.

[0015] In a further exemplary embodiment of the present invention, the length L2 set in the learning mode, which differs from the predefined initial length L0, is defined as the new initial length L0'. The previously stored predefined initial length L0 can then be overwritten by the new initial length L0'. Consequently, after learning a new length L2 as the new initial length L0', the method can be operated such that a packaging material product of the desired new initial length L0' is produced at an operating speed v0. The newly learned orThe learned initial lengths L0' can be defined for the packaged item based on desired packaging material properties, in particular target packaging material properties such as target cushioning properties, and / or set taking into account the operator's experience, packaging specifications, and / or information stored in a separate or higher-level memory. Different initial lengths L0 can be stored in a separate or higher-level memory, resulting, for example, from the packaging specifications for differently sized shipping items.

[0016] According to an exemplary embodiment of the present invention, an individual mode can be provided. In the individual mode, the packaging material is fed in at the operating speed v0, and a packaging material product is manufactured with an individual length Li that differs from the predefined initial length L0. This can be advantageous, for example, when only a small number of individual packaging material products or cutouts are to be produced amidst a high-volume production run of the predefined initial length L0 or L0', for instance, when it is not desired to set the individual length Li as the standard length or new initial length L0'.

[0017] In a further exemplary embodiment of the method according to the invention, the packaging material is fed in at the operating speed v0 by briefly pressing an operating button for less than 100 milliseconds (ms), and a packaging material product of the predefined initial length L0 or L0' is produced. In other words, the operating mode is entered by briefly pressing the operating button. It can be provided that, in this operating mode, the packaging material product is produced essentially automatically, without any further intervention by an operator, according to the desired or preset initial length L0 or L0'.

[0018] In a further exemplary embodiment of the method according to the invention, by holding an operating button for more than 100 milliseconds, in particular for more than 250 milliseconds, the packaging material can be fed in at the operating speed v0 until the operating button is released and a packaging material product of the individual length Li is produced. The individual length Li results from the product of the operating speed v0 and the individual holding time of the operating button, i.e., the period for which the operating button was held down. Thus, a product with a predefined initial length L0 can be easily produced.L 0 ' A different packaging material product can be produced with a desired individual length L i by, in particular, pressing the same button responsible for entering the operating mode for a longer time than would be necessary to set the operating mode and produce an initial packaging material product length L 0. In this way, it is also possible in a simple way to flexibly produce any desired individual lengths L i of packaging material products.

[0019] According to an exemplary embodiment of the inventive method, the packaging material is fed at the learning speed v2 by simultaneously pressing an operating button, in particular the operating button by which the operating mode and also the individual mode can be set, and a learning button for more than 100 milliseconds. According to the invention, only two buttons are necessary to switch between three different operating modes, wherein in one operating mode a predefined packaging material product length is automatically produced. In another operating mode, any packaging material product length can be produced, and in a third mode the predefined initial length L0 of the packaging material products can be easily modified.By means of the different actuation times, in particular actuation time thresholds such as 100 milliseconds or 250 milliseconds, and the use of only two operating buttons, both automated high-volume production of preset packaging material product lengths and customized packaging material product lengths can be achieved, with easy switching between the different modes. According to an exemplary embodiment, the teach-in button can be released after a certain period of time, so that the operator has the hand used to actuate the teach-in button available again. A holding time of 250 milliseconds has been identified as advantageous according to the invention, during which the operating and teach-in buttons must be held and pressed simultaneously.

[0020] In another exemplary embodiment of the method according to the invention, the packaging material is fed in at the learning speed v2 until the operating button for setting the packaging material product length L2 is released, and subsequently a packaging material product corresponding to the set packaging material product length L2 is produced. After releasing the learning button, the learning mode is essentially similar to the individual mode, except that the packaging material is fed in at the learning speed v2, which is lower than the operating speed v0 prevailing in the individual mode. The packaging material product length L2 to be learned, which is set in the learning mode, therefore corresponds to the product of the learning speed v2 and the actuation or holding time of the operating button.According to an exemplary training, the set packaging material product length L 2 is defined as the new initial length L 0 ' and / or stored in a memory of the control system.

[0021] In a further exemplary embodiment of the method according to the invention, the packaging material is fed in at the operating speed v 0 by briefly pressing the operating button again for less than 100 milliseconds, and a packaging material product of the new initial length L 0 ' is produced. This means that the operating mode is entered and / or the packaging material manufacturing machine is operated in operating mode.

[0022] According to a further aspect of the present invention, which can be combined with the preceding aspects and exemplary embodiments, a packaging material manufacturing machine is provided for producing a packaging material product from a web-shaped packaging material. The packaging material web can be made of paper, such as recycled paper, in particular waste paper and / or 100% recyclable paper, which may be manufactured without chemical additives. Recycled paper is, in particular, paper materials with a low proportion (less than 50%) of virgin fiber paper. For example, paper materials containing 70% to 100% waste paper are used.The recycled paper within the meaning of this invention can be paper material that has a tensile strength index longitudinally to the machine direction of at most 90 Nm / g, preferably a tensile strength of 15 Nm / g to 60 Nm / g, and a tensile strength index transversely to the machine direction of at most 60 Nm / g, preferably a tensile strength of 5 Nm / g to 40 Nm / g. For determining the tensile strength or the tensile strength index, a standard such as DIN EN ISO 1924-2 or DIN EN ISO 1924-3 can be used. In addition, or alternatively, a recycled paper property can be characterized by its so-called burst resistance. A material in this sense is recycled paper with a burst index of at most 3.0 kPa*m^2 / g, preferably with a burst index of 0.8 kPa*m^2 / g to 2.5 kPa*m^2 / g. The burst index is determined according to the standard DIN EN ISO 2758.Furthermore, the packaging material has a basis weight of, in particular, 40 g / m² to a maximum of 140 g / m². According to the invention, the starting packaging material can be in the form of a roll of material or a zigzag-folded stack of packaging material, which is also referred to as a leporello stack.

[0023] The packaging material manufacturing machine according to the invention comprises a feed system for conveying the packaging material, for example from a pre-assembled supply of packaging material, e.g. in accordion-fold stack form or in roll form, into the packaging material manufacturing machine.

[0024] Furthermore, the packaging material manufacturing machine comprises a cutting device, such as a cutting station, for example by means of a rotary cutter or a translationally movable, guillotine-like cutting edge, for cutting off a manufactured packaging material product of a predefined initial length L0 with respect to the longitudinal direction of the web. For the purposes of the present invention, a manufactured packaging material product also includes a flat web of packaging material, for example corrugated board, which has been conveyed through a device for cutting packaging material, in particular corrugated board, essentially unchanged in its composition, and has been cut to length by means of the cutting device contained in the device.

[0025] Furthermore, the packaging material production machine includes a control system for managing its operation. For example, the control system can be integrated with the infeed and / or the cutting unit. It can also be integrated with drive units for the cutting unit and / or the infeed. The control system can be located internally within the packaging material production machine or separately, for example, on a desktop computer and / or in a higher-level cloud environment.

[0026] According to the packaging material manufacturing machine according to the invention, the control system has an operating mode in which the feeder conveys the packaging material at an operating speed v0 and the cutting unit cuts a packaging material product to length according to the predefined initial length L0, as well as a learning mode for changing the predefined initial length L0 to a different length L2. In the learning mode, the feeder conveys the web-shaped packaging material at a learning speed v2, which is lower than the operating speed v0.

[0027] According to an exemplary embodiment of the packaging material manufacturing machine according to the invention, the control system is coupled to an operating button, in particular a foot switch. A brief actuation of the operating button for less than 100 milliseconds initiates the control system's operating mode. Furthermore, holding the operating button for more than 100 milliseconds, in particular 150 milliseconds, initiates the control system's individual mode. In individual mode, the packaging material is fed in until the operating button is released. Upon release of the operating button, a packaging material product of a corresponding individual length Li is produced.Thus, it is easy to switch between an operating mode in which, for example, packaging material products of a predefined initial length L0 can be automatically produced for mass production, and an individual mode, for example, for special or extra requests, in which a packaging material product is produced according to a specific actuation time of the operating button. The packaging material production machine can then be operated in both operating states. According to the invention, only one operating switch is required for this. Because the control system is designed such that different operating modes are activated by different actuation times of the single operating button, no additional buttons are needed to operate the packaging material production machine.

[0028] In another exemplary embodiment of the packaging material manufacturing machine according to the invention, the control system is coupled with a teach-in button, in particular a manual button. The teach-in button can initiate the teach-in mode. Thus, only two buttons are necessary to implement three different operating modes. According to an exemplary further development, the teach-in mode is activated when the operating button and the teach-in button are pressed simultaneously for more than 100 milliseconds. Due to the design of the control system such that different operating modes can be activated as a result of different button press durations, the packaging material manufacturing machine can be controlled simply and flexibly to produce packaging material products of any length.

[0029] In a further exemplary embodiment of the packaging material manufacturing machine according to the invention, the packaging material manufacturing machine produces a packaging material product according to the method according to the invention in accordance with one of the aspects or exemplary embodiments described above.

[0030] Further properties, features and advantages of the invention will be clarified below by describing preferred embodiments of the invention with reference to the accompanying exemplary drawings, which show: Fig. 1 a perspective front view of an exemplary embodiment of a packaging material manufacturing machine according to the invention; Fig. 2 a perspective rear view of the device made of Fig. 1 ; and Fig. 3 a schematic flowchart of a method according to the invention.

[0031] A packaging material production machine according to the invention is generally designated by reference numeral 1 in the following description. By way of example, the packaging material production machine is the Figure 1 and 2 to create a device for cutting a web of packaging material 3.

[0032] The device 1 is preferably used for cutting packaging material webs 3 in the form of corrugated cardboard webs. Figure 1 and 2Figure 1 shows an embodiment of a device 1. This device has a cover housing wall 5 and a base housing wall 7. The housing walls 5, 7 can be formed in one piece. In the embodiment shown here, they are formed from several wall sections 5', 5", 5‴, 5iv<, 5v<, 7', 7", 7‴. For example, the wall sections 5', 5", 5‴, 5iv<, 5v<, 7', 7", 7‴ are formed from plate sections, such as sheet metal or plastic plates. In particular, the wall sections 5', 5", 5‴, 5iv<, 5v<, 7', 7", 7‴ are fastened to the device 1 by means of fasteners 19, such as screws or rivets. The design of the housing walls 5, 7 over several wall sections offers the particular advantage that the device 1 can be manufactured, assembled, and disassembled for maintenance in a simplified manner. As in Figure 1 and 2Preferably, at least one handle 9, and more preferably two handles 9, are attached to the lid housing wall 5. The at least one handle 9 can be arranged downstream of an inlet opening 11 in the conveying direction F, and in particular at the level of an outlet opening 13 in the conveying direction. Preferably, the inlet opening 11 is formed by two offset inlet rollers 15, 17, which are spaced apart in the direction of the material thickness corresponding to a material thickness 21. In particular, the inlet rollers 15, 17 form a slit-shaped inlet opening 11 through which the packaging material web 3 is fed to the device 1.

[0033] The cover housing wall 5 and the base housing wall 7 can be pivotally arranged relative to each other to expose the interior of the device 1, for example, to allow the replacement of individual components. The housing incorporates, among other things, a cutting device (not shown), which can be implemented as a translationally movable cutting blade, a drive for operating the cutting device, in particular for moving the cutting blade, and a feed system for conveying the packaging material web 3 into the device 1. The feed system can, for example, be implemented by guide rollers arranged within the device 1, which can be driven by a separate drive. Furthermore, a control system, schematically indicated by reference numeral 23, can be provided for controlling the operation of the packaging material production machine 1.In particular, the control unit 23 can be coupled with the cutting device and the feeder to control their operation.

[0034] The control unit 23 has an operating mode in which the feeder conveys the packaging material 3 at an operating speed v 0 and the cutting unit cuts a packaging material product 25, which according to the exemplary embodiment is a packaging material web blank and is shown as a dashed line, to a predefined initial length L 0. As in Figure 1 As shown, the packaging material web blank 25 to be cut to length is conveyed out of the device 1 via the output opening 13, and the cutting device then cuts the packaging material web blank 25 from the fed packaging material web 3 when the predefined length L 0 is reached. This is shown schematically in Figure 1The steadily increasing length of the packaging material web L during the conveying of the packaging material web 3 is indicated.

[0035] The controller 23 can have a memory (not shown) in which a predefined initial length L0, defined by user input, is stored. This ensures that when an operator activates the packaging material production machine 1 and selects the operating mode, a packaging material web blank 25 of the predefined initial length L0 is automatically produced. To actuate and activate the device 1, the device 1 has an operating button T1 coupled to the controller 23. The button T1 can be mounted on the device 1. Alternatively, it can be a foot switch that can be operated by the operator using their foot. The operating button T1 is designed to cause the controller 23 to enter operating mode with a short actuation of less than 100 milliseconds.Furthermore, the control unit can be instructed to enter a custom mode by means of the operating button T1. In custom mode, the packaging material web 3 is fed into or through the device 1 until the operating button T1 is released. Releasing the operating button T1 signals a desired custom length Li to the control unit, which is then produced by the cutting device. This means that the cutting device is activated when the operating button T1 is released to produce a packaging material web blank 25 of a desired custom length Li, which may differ from the predefined initial length L0. If the operating button T1 is pressed again briefly, for less than 100 milliseconds, the operating mode is resumed, so that the control unit 23 instructs the device 1 to produce a packaging material web blank 25 of the predefined length L0.

[0036] The control unit 23 also includes a learning mode for changing the predefined length L0 to a different length L2. The learning mode is characterized in that the control unit 23 operates the device 1 such that the packaging material web 3 is fed at a learning speed v2, which is lower than the operating speed v0 prevailing in the operating mode. To enter the learning mode, a learning button T2, in particular a hand-held button, which is provided, for example, on the device 1, must be pressed. When the learning button T2 is pressed and the operating button T1 is simultaneously pressed for more than 100 milliseconds, the control unit 23 is caused to operate the device 1 in learning mode. Because the learning speed v2 is lower than the operating speed v0, a packaging material web section 25 of the length L2 to be learned can be produced very precisely and easily.Once the desired length L2 to be learned has been reached and the packaging material web blank 25 is to be cut to length L2, the operating button T1 is released. Releasing the operating button T1 causes the controller 23 to initiate cutting the packaging material web 3 to length, so that a packaging material web blank 25 of the length to be learned L2 is produced. The learning mode causes the learned length L2 to be set as the new initial length L0' and, in particular, stored in the memory of the controller 23. If the operating button T1 is subsequently pressed briefly for less than 100 milliseconds, so that the controller 23 switches to operating mode, the packaging material web 3 is fed at the operating speed v0 and a packaging material blank 25 corresponding to the new initial length L0' is produced. It has proven advantageous that in the learning mode, i.e.,After the operating button T1 and the teach-in button T2 have been pressed and held simultaneously, the teach-in button can be released no sooner than 250 milliseconds later. The operating button T1 continues to be pressed to teach in a new length L2. This has the advantage that the operator no longer needs to press the teach-in button T2 and has at least one hand free to operate the packaging material web 3 or the packaging material production machine 1.

[0037] For example, it is possible that the particularly in Figure 2The illustrated feed rollers 15, 17 are driven and coupled to the control unit 23. Thus, the feed rollers 15, 17 can also perform the feeding action. Additional feed rollers are not required in this case. However, it is also possible, for example, to provide free-rotating feed rollers inside the device 1 to feed the packaging material web in a controlled manner, possibly with pretension for better cutting of the packaging material web blank 25, through the device 1.

[0038] In Figure 3Figure 100 schematically shows a flowchart 100 of a method according to the invention for producing a packaging material product 25 from a packaging material web 3. According to block 110, the packaging material web 3 is fed at an operating speed v0 and cut to length to form a packaging material blank 25 according to a length L0 predefined with respect to the web's longitudinal direction (step 120). Steps 110 and 120 together constitute operating mode 101. The diamond 130 schematically represents the possibility of producing another packaging material web blank according to the predefined initial length L0 in operating mode 110 (arrow 131) or switching to the learning mode 102 if a new initial length L0' is desired, which differs from the originally predefined initial length L0 (arrow 132).

[0039] In learning mode 102, according to block 140, the packaging material web 3 is fed at a learning speed v 2, which is lower than the operating speed v 0. In this way, a length L 2 to be learned can be easily and very precisely defined, which then replaces the originally predefined initial length L 0 as the new learned initial length L 0'. According to step 150, in learning mode 102, a packaging material web section 25 is cut to length according to the length L 2 to be learned at the learning speed v 2. If the learned length L 2, which is then stored as the new initial length L 0', corresponds to the desired packaging material web section length (diamond 160), the process 100 can be run again from the beginning and, according to operating mode 101, a packaging material web section 25 corresponding to the new initial length L 0' can be produced at the operating speed v 0 (arrow 161).If, for example, the operator determines that they wish to change the programmed length L2 again (diamond 160), they can operate the packaging material production machine 1 again in programming mode 102 and program a new length L2'. The packaging material production machine 1 will again operate at the reduced programming speed v2 (block 140), and a packaging material web blank 25 of the new length L2' will be produced or cut to length. Once the length L2' corresponds to the length with which the subsequent packaging material web blanks 25 are to be produced, the packaging material web production device 1 can be operated again in operating mode 101, so that packaging material web blanks 25 are automatically produced according to the new, defined initial length L0''.

[0040] The features disclosed in the foregoing description, figures and claims can be important for the realization of the invention in its various embodiments, both individually and in any combination. REFERENCE MARK LIST

[0041] 1 Packaging material manufacturing machine 3 Packaging material web 5 Lid-housing wall 7 Base-housing wall 5', 5", 5', 5 iv< , 5 v< Wall section 7', 7", 7' Wall section 9 Handle 11 Feed opening 13 Output opening 15, 17 Feed roller 19 Connecting device 21 Packaging material web thickness 23 Control 25 Packaging material web cutting T1 Operating button T2 Learn button L Packaging material web cutting length L 0 , L 0 ', L 0 '' Initial length v Feeding speed v 0 Operating speed v 2 Learn-in speed 100 Procedure 101 Operating mode 102 Learn-in mode 110 Feeding at operating speed of 0 120 Cutting to length according to the initial length L 0 130, 160 Decision between operating mode and Learning mode 131 Entering operating mode 132 Switching to learning mode 140 Feeding at the learning speed 150 Cutting to length according to the learning length 160 Deciding between operating mode and learning mode 161 Switching to operating mode 162 Remaining in learning mode

Claims

1. Method for producing a packaging material product from a web-shaped packaging material, in which, in an operating mode, the web-shaped packaging material is fed at an operating speed v0 and, in order to form a packaging material product, is cut to length in an initial length L0 which is predefined with respect to the longitudinal direction of the web, and / or in which, in a teaching mode, the packaging material is fed at a teaching speed v2 and, at the teaching speed v2, a packaging material product of the length L2 which differs from the initial length L0 is produced, wherein, in order to change the predefined initial length L0 to a length L2 which differs therefrom, the web-shaped packaging material is fed at the teaching speed v2 which is lower than the operating speed v0.

2. Method according to Claim 1, in which the teaching speed v2 lies in the range from 1%, in particular 10%, 20%, 30% or 40%, to 99% of the operating speed v0.

3. Method according to one of the preceding claims, in which the length L2 which is set in the teaching mode and differs from the predefined initial length L0 is defined as a new initial length L0'.

4. Method according to one of the preceding claims, in which, in an individual mode, the packaging material is fed at the operating speed v0 and a packaging material product is produced at an individual length Li which differs from the predefined initial length L0.

5. Method according to one of the preceding claims, in which, by briefly actuating an operating button (T1) for less than 100 ms, the packaging material is fed at the operating speed v0 and a packaging material product of the predefined initial length L0, L0' is produced, in particular the operating mode is adopted.

6. Method according to one of the preceding claims, in which, by holding an operating button (T1) for more than 100 ms, in particular for more than 250 ms, the packaging material is fed at the operating speed v0 until the operating button (T1) is released and a packaging material product of the individual length Li is produced.

7. Method according to one of the preceding claims, in which, by simultaneous actuation of an operating button (T1) and a teaching button (T2) for more than 100 ms, the packaging material is fed at the teaching speed v2, wherein in particular the teaching button (T2) is released at the earliest after 250 ms.

8. Method according to Claim 7, in which the packaging material is fed at the teaching speed v2 until the operating button (T1) for setting the packaging material product length L2 is released and a packaging material product is produced in accordance with the set packaging material product length L2, wherein in particular the set packaging material product length L2 is defined as the new initial length L0'.

9. Method according to Claim 8, in which, by briefly actuating the operating button (T1) again for less than 100 ms, the packaging material is fed at the operating speed v0 and a packaging material product of the new initial length L0' is produced, in particular the operating mode is adopted.

10. Packaging material production machine (1) for producing a packaging material product from a web-shaped packaging material, comprising a feed for feeding the packaging material into the packaging material production machine, a cutting-to-length device for severing a produced packaging material product of an initial length L0 which is predefined with respect to the longitudinal direction of the web, and a controller (23) for controlling the operation of the packaging material production machine, characterized in that the controller (23) has an operating mode, in which the feed feeds the packaging material at an operating speed v0 and the cutting-to-length device cuts to length a packaging material product in accordance with the predefined initial length L0, and a teaching mode for changing the predefined initial length L0 to a length L2 which differs therefrom, in which the feed feeds the web-shaped packaging material at a teaching speed v2 which is lower than the operating speed v0.

11. Packaging material production machine (1) according to Claim 10, wherein the controller (23) is coupled to an operating button (T1), in particular a foot button, which, when briefly actuated for less than 100 ms, causes the controller (23) to adopt the operating mode and / or which, when held for more than 100 ms, in particular for more than 150 ms, causes the controller (23) to adopt an individual mode, in which the packaging material is fed until the operating button (T1) is released and a packaging material product of a corresponding individual length Li is produced.

12. Packaging material production machine (1) according to Claim 10 or 11, wherein the controller (23) is coupled to a teaching button (T2), in particular a hand button, which causes the controller (23) to adopt the teaching mode, wherein in particular the teaching mode is adopted when the operating button (T1) and the teaching button (T2) are actuated simultaneously for more than 100 ms.

13. Packaging material production machine (1) according to one of Claims 10 to 12, which produces a packaging material product in accordance with the method according to one of Claims 1 to 9.