TW202348403A - Method for time position adjustment of a web - Google Patents

Abstract

The invention relates to a computer-implemented method for time-controlling an adjustment signal output to a position-influencing device for controlling one or more webs in a cardboard plant. In order to control the position-influencing device, at least one input signal is received.

Description

Method for temporal position adjustment of webs

The present invention relates to a method for the temporal position adjustment of one or more webs of a corrugating board plant.

Equipment for manufacturing corrugated board is known in the art, the basic structure of which is shown in Figure 1 . Such equipment consists of one or more single-sided groups in which smooth and corrugated webs are respectively bonded together. Webs joined in this way are called single-sided webs. In bonding and lamination, the single-sided web and cover web are bonded and laminated into a single web. After lamination, the web passes through heated and ventilated areas. The web is dried here by heating. In the final finishing part, the corrugated cardboard web is trimmed at the edges and further cut into the required format as needed and transported to the warehouse.

Some new equipment allows working with natural edges, meaning one side does not have to be cut or trimmed. To do this, the webs are positioned so that the edges of the webs to be joined exactly overlap each other on one side. For example, when the combined webs are die-cut to obtain the final product, it is possible to work with natural edges, since in this case the die-cutting is anyway made at a distance from the edge of the web. Working with natural edges reduces material usage because less material waste is produced.

However, working with natural edges requires different webs to overlap each other in the same web position. Corrugated equipment can use different web positions, for example, a centered web position if two edges of the web are to be trimmed, or a left or right aligned web position to handle the natural edge on the left or right side. However, switching between web positions can result in scrap. For example, different webs to be joined together may change web positions at different points in time, so the webs do not always join to each other exactly, which can lead to scrap.

According to the present invention, a computer-implemented method for controlling one or more webs of a corrugating board plant is provided. The method includes the following steps. At least one first input signal is first received, and a first adjustment signal is then determined at a first point in time based at least on the at least one first input signal. Subsequently, the first adjustment signal is output to the first position influencing device and at least one further point in time is determined based on at least one first input signal and/or at least one further received input signal. Finally, when at least one further point in time is reached, at least one further adjustment signal is output to at least one further position-influencing device.

In some embodiments, the first position influencing device and the at least one further position influencing device may be configured to change between a centered, left edge flush or right edge flush web position based on at least one adjustment signal the one or more webs.

In some embodiments, the determination of the at least one further adjustment signal may be based on the determination of a change in width and/or position of at least one of the one or more webs.

In some embodiments, changes in width and/or position of one or more webs may be determined starting from a first point in time.

In some embodiments, determining changes in width and/or position of one or more webs may include the following steps. A first width measurement and/or a first position measurement by at least one sensor is received, wherein the at least one sensor is located at or upstream of at least one further position influencing device. A second width measurement and/or a second position measurement from at least one sensor is received. Comparing the first width measurement to the second width measurement and/or comparing the first position measurement to the second position measurement. Optionally, at least one further input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement.

In some embodiments, the second width measurement and/or the second position measurement may occur after the first width measurement and/or the first position measurement.

In some embodiments, the determination of the at least one additional time point may include the following steps. A web speed is determined for at least one of the one or more webs. Based on the determined web speed and the distance between the first position influencing device and the at least one further position influencing device, a position of a section of the at least one web between the first position influencing device and the at least one further position influencing device is determined. the travel time between the first time point and the determined travel time, wherein at least one further time point is determined by the first time point plus the determined travel time.

In some embodiments, the determination of the at least one additional time point may include the following steps. A web speed is determined for at least one of the one or more webs. Determination of a section of at least one web at least one further position influencing device upstream of the position influencing device and at least one further position influencing device based on the determined web speed and the distance between the upstream position influencing device and the downstream position influencing device The travel time between the downstream position influencing devices, wherein the upstream position influencing device has received the adjustment signal at a second time point, and at least one further time point is determined by the second time point plus the determined travel time.

In some embodiments, the web speed of at least one of the one or more webs may be determined starting from a first point in time.

In some embodiments, the determination of the at least one additional time point may include the following steps. The distance traveled by at least one of the one or more webs is determined. The distance traveled by at least one of the one or more webs is compared with the distance between the first position influencing device and the at least one further position influencing device, wherein when at least one of the one or more webs At least one further point in time is determined when the distance traveled corresponds to the distance between the first position-influencing device and the at least one further position-influencing device.

In some embodiments, the determination of the at least one additional time point may include the following steps. The distance traveled by at least one of the one or more webs is determined. The distance traveled by at least one of the one or more webs is compared with the distance between the position influencing device upstream of the at least one further position influencing device and the position influencing device downstream of the at least one further position influencing device, wherein , at least one further point in time is determined when the distance traveled corresponds to the distance between the upstream position influencing device and the downstream position influencing device.

In some embodiments, the distance traveled by at least one of the one or more webs starting from a first point in time may be determined.

In some embodiments, the determination of at least one additional point in time may be based on detecting a gap in at least one of the one or more webs.

In some embodiments, at least a portion of one of the one or more webs may have a natural edge with a web position flush with the left edge and/or flush with the right edge.

In some implementations, the first input signal may be generated by human operator input.

In some embodiments, the first input signal may be generated by a splicing process at the splicing location.

In some implementations, generating the first input signal may include the following steps. A first width measurement and/or a first position measurement is received from the first sensor. A second width measurement and/or a second position measurement is received from the first sensor. The first width measurement is compared to the second width measurement and/or the first position measurement is compared to the second position measurement. A first input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement.

In some implementations, generating the first input signal may include the following steps. A first width measurement and/or a first position measurement is received from the first sensor. The first width measurement and/or the first position measurement are compared to a reference value. A first input signal is generated if the first width measurement and/or the first position measurement differs from the reference value or if the first width measurement and/or the first position measurement corresponds to the reference value.

In some embodiments, there may be a time delay between the output of the first adjustment signal and the reception of the first input signal, wherein the determination of the time delay may include the following steps. Determining a web speed in a downstream direction of at least one of the one or more webs, and determining one or more web speeds in a downstream direction based on the determined web speed in the downstream direction and a distance between the splicing position and the first position influencing device. A travel time of a section of at least one web of the plurality of webs between the splicing position and the first position influencing device, wherein the time delay is determined by the travel time. Alternatively or additionally, determining the time delay may include the following steps. Determining a distance traveled by at least one of the one or more webs in a downstream direction and comparing the distance traveled by at least one of the one or more webs with a distance between the splicing position and the first position influencing device Comparison, wherein the time delay is determined when the distance traveled corresponds to the distance between the splicing position and the first position influencing device.

In some embodiments, there may be a time delay between the output of the at least one further adjustment signal and the reception of the at least one further input signal, wherein the determination of the time delay may include the following steps. Determining a web speed in a downstream direction of at least one of the one or more webs and determining based on the measured web speed in the downstream direction and a distance between the at least one sensor and the at least one further position influencing device. A travel time of a section of at least one of the one or more webs between at least one sensor and at least one further position influencing device, wherein the time delay is determined by the travel time. Alternatively or additionally, determining the time delay may include the following steps. Determining a distance traveled by at least one of the one or more webs in a downstream direction and correlating the distance traveled by at least one of the one or more webs with at least one sensor and at least one further position influencing device The distances are compared, wherein a time delay is determined when the distance traveled corresponds to the distance between the at least one sensor and the at least one further position-influencing device.

In some embodiments, the output of the first adjustment signal may be time delayed from the reception of the first input signal, wherein the determination of the time delay may include the following steps. Determining a web speed in a downstream direction of at least one of the one or more webs and determining a or a travel time of a section of at least one of the plurality of webs between the first sensor and the first position influencing device, wherein the time delay is determined by the travel time. Alternatively or additionally, determining the time delay may comprise the steps of determining a distance traveled by at least one of the one or more webs in a downstream direction and dividing the distance traveled by at least one of the one or more webs. A comparison is made with the distance between the first sensor and the first position-influencing device, wherein the time delay is determined when the distance traveled corresponds to the distance between the first sensor and the first position-influencing device.

In some embodiments, the web may be particularly a paper or cardboard-like web.

In some embodiments, at least one of the at least one sensor may be selected from the group consisting of an optical sensor, a camera, a CCD camera, a CMOS camera, an ultrasound device, or a piezoelectric element working with ultrasound.

In some embodiments, the first position influencing device may comprise a first actuator, in particular an electric, hydraulic or pneumatic actuator, wherein the actuator is controlled by the first adjustment signal. In some embodiments, the at least one further position influencing device may comprise at least one further actuator, in particular an electric, hydraulic and/or pneumatic actuator, wherein the at least one further actuator is controlled by at least one further adjusting Signal control.

In some embodiments, the first position influencing device and at least one further position influencing device may be controlled simultaneously.

In some embodiments, for simultaneous control of the first and at least one further position influencing device, the web speed of one or more webs may be reduced.

In some embodiments, the simultaneous control of the first and at least one further position influencing device may only be carried out when the web speed of one or more webs is <100 m/min.

In some embodiments, corrugated board equipment can be used to produce corrugated board from paper or cardboard.

In some embodiments, a corrugated board plant may include at least one single-sided group. A single-sided group can be configured to perform at least one of the following functions. The first web is corrugated, thereby forming corrugation peaks on both sides of the web. Coat the corrugated peaks of the first web with adhesion promoter. The first web is combined with the cover web to create a single sided web. At least one unilateral group may comprise at least one position influencing device or at least one position influencing device may be positioned in the upstream direction of the unilateral group.

In some embodiments, a corrugated board plant may include at least one lamination station. The lamination station can be designed to combine the single-sided web with the cover web. At least one lamination station may comprise at least one position influencing device or the at least one position influencing device may be positioned in the upstream direction of the lamination station.

In some embodiments, a corrugated board plant may include at least one cross-cutting machine. At least one cross-cutting machine may be configured to cut at least one of the at least one or more webs perpendicularly to the direction of travel.

In some embodiments, the corrugated board equipment may include at least one creasing machine and/or cutting machine. At least one creasing and/or cutting machine may be designed to perforate and/or cut at least one of the at least one or more webs parallel to the direction of travel. At least one creasing and cutting machine may comprise at least one position influencing device or the at least one position influencing device may be positioned upstream of the creasing and cutting machine.

In some embodiments, the corrugated board equipment may include at least one splicer.

In some embodiments, at least one splicer may be configured to connect an end of a web to the beginning of a new web.

In some embodiments, at least one splicer may include at least one position influencing device.

According to the invention, an apparatus is provided, characterized by a controller having programming means for executing a computer-implemented method according to the invention. Furthermore, according to the invention, there is provided a device with storage means, characterized by a controller with programming means for executing the computer-implemented method according to the invention. Furthermore, according to the invention there is also provided a computer-readable medium characterized by a programming device for executing the computer-implemented method according to the invention.

Figure 1 shows a schematic overview of a plant for manufacturing corrugated cardboard. The equipment in Figure 1 consists of two single-sided groups, a bonding and lamination station, a heating and ventilation area and a finishing section. Equipment for manufacturing corrugated cardboard can also have different structures, such as more single-sided groups.

Figure 2 shows a schematic diagram of a single panel. In equipment for manufacturing corrugated board, there may be one or more such single-sided groups. They are identical in terms of functionality and basic structure.

One or more webs are located on the stock roll 1. A web may here preferably be understood to be a paper web or a cardboard web, but also, for example, a material web, a plastic web and a metal web. The web may consist of one or more layers of the same or different materials. In particular, the method according to the invention or the system according to the invention can be adapted to those types of webs occurring in the manufacture of corrugated board. In this article, the term single-sided web refers to a web consisting of two layers of material, one smooth and the other corrugated.

Stock rolls 1 are always configured in pairs, where material is unrolled from one roll while the other roll is ready as a backup. If one roller runs out of material, it is spliced to another roller in position 2 so that the material supply is not interrupted. The term "splicing" in this disclosure may refer to a method step of joining one web to another web. Alternatively or additionally, the term "splicing" may describe a method step of joining the end of a web to the beginning of another web, for example using tape. After the splicing process, the combined webs can be considered the same web. From there the web is fed to the first material storage 3 . The web length is stored here to compensate for delays in web supply due to splicing to new rollers. In order to adjust the storage content in the storage 3, the right and left deflection rollers in the storage can be moved closer to or further away from each other.

The web is guided from the first storage 3 through the sensor 10 to the position influencing device 4 . The direction in which the web is guided corresponds to the direction of travel. The sensor 10 detects the value of the web in its original state.

The sensors 7, 10, 11, 12, 18, 20, 23 may be configured to measure the width and/or position of the web. Width is the dimension of the web extending perpendicular to the direction of travel, more precisely the larger of the two dimensions of the web extending perpendicular to the direction of travel. The width is defined by the distance between two endpoints, each located at the edge of the web and on a line perpendicular to the direction of travel. The width of the corrugated cardboard equipment extending in the same direction as the width of the web is greater than the width of the web. The web can be moved along the web width by position influencing devices 4, 14, 15, 16. The width of the corrugated cardboard equipment is described by the two transverse edge points of the corrugated cardboard equipment. The lateral edge points of corrugated cardboard equipment can be physical. Alternatively, the transverse edge points of the corrugated board plant can be virtual and defined by the maximum displacement of the web. The two edge points lie on a line perpendicular to the direction of travel.

Web position describes the position of the web along the width of the corrugating equipment. For example, the position of the web may be the distance between at least one of the two end points of the web and at least one of the two transverse edge points of the corrugated board apparatus. Alternatively or additionally, the position of the web may be the distance from a midpoint between at least one of the two end points of the web and a transverse edge point of the corrugated board apparatus.

Furthermore, the sensors 7, 10, 11, 12, 18, 20, 23 may be configured to measure other values of the web, such as the moisture content of the web.

After the position influencing device 4 the web is guided over rollers on which it is heated, in particular rollers supplied with hot steam from the inside. In addition, the web gets wetted along the way, so it deforms more easily and the two webs can be joined more easily later.

The web from one side is then guided through corrugating rollers 5 where it is pressed into a corrugated shape. A gluing device 6 applies glue to the web. The second web comes from the other side and is then glued to the corrugated web to create a single-sided web. Sensor 7 and sensor 11 are arranged in the area where the two webs are glued. The sensor 7 detects the web position of the two webs and/or their web position relative to each other. This information can be used to adjust the position influencing device 4 in various ways. For example, it can be used to adjust one or two webs to a precise position when joined, or to align one web precisely with another. One web is preferably adjusted to a predetermined web position, while the other web is aligned relative to the first web. In order to use the natural edge, i.e. the side that does not have to be cut or trimmed, the web position should be adjusted in such a way that the edges of the two webs exactly overlap each other on one side.

The sensor 11 is also arranged in the area of the corrugating roller 5 for humidity adjustment. The sensor 11 is at least also configured to measure the moisture content of the web. This allows readjustment of the wetting of the respective web, thus maintaining constant and controlled conditions during gluing.

The resulting single-sided web is conveyed to bridge 8 . A second stock, the so-called bridge stock 9 is arranged here. It serves as a reserve for further manufacturing. When splicing from one stock roll 1 to another, the production of single-sided webs is often slowed down to achieve a reliable and therefore slower splice. During this period, the bridge stock 9 is used as a reserve, allowing the manufacturing process to continue at a speed of approximately 100 to 400 meters per minute. After replacing the new stock roll 1, the speed when producing the single-sided web is increased to a higher than average value to replenish the bridge stock 9.

A sensor 12 is arranged at an end of the bridge stock 9 . Further information for process monitoring and optimization is available here. In particular, bridge inventory information can be obtained here at the same time.

Figure 3 shows a schematic diagram of the bonding, lamination station and heating and ventilation areas. One or more single-sided webs are guided here. Position influencing devices 15, 16 adjust the web position of one side of the web and the required web tension. The cover is guided from the cover stock roller 13 via a stock store to the position influencing device 14 . Sensors can in turn be arranged in front of the position influencing device 14 in order to also detect the width and/or position of the covering web or its moisture.

After the position influencing devices 14, 15, 16, the web is led via a preheater 17 and a glue application unit 19 to the lamination section 21, where the webs are joined together. In this case, it is desirable to position the webs relative to each other as precisely as possible. Natural edges can only be used if the webs are all glued flush to each other on one side. Alternatively, all webs may be centrally aligned with each other. Crucially, however, the position of the webs relative to each other at the location of lamination 21 is critical.

Each web can be viewed individually and adjusted to a specific position, where the deviation from this value measured by the sensors 18 , 20 is used as the actual value for adjusting the position influencing means 14 , 15 , 16 .

Alternatively, a web, in particular a covering web, can serve as reference. The position of other webs is then controlled relative to this web. Furthermore, the information obtained for the reference web can be used to control other webs to track them or compensate for the dynamics of the reference web.

If measurements are taken simultaneously in the area of the preheater 17 and the gluing unit 19 , dynamics can be particularly taken into account. Furthermore, the position influencing devices 4, 14, 15, 16 themselves can be equipped with sensors.

When using the information obtained from the sensors 18, 20, the distance the web must travel between the position influencing device 4, 14, 15, 16 and the measuring position or sensor as well as the web speed are taken into account. In addition to dead time, damping can also be set.

After the lamination section 21, the web is dried in a heated and ventilated zone. A revolving belt pulls the web through this area, guiding it past the heating elements. By applying heat, moisture is removed from the web and dried.

Figure 4 shows a schematic diagram of the finishing part. Another sensor 23 is arranged after the heating and ventilation area 22 . The sensor 23 is configured to measure at least the width and moisture content of the web. The measured humidity is used to adjust the thermal energy introduced into the heating and ventilation area 22 . The measured width is used together with the width value measured after unfolding to determine the shrinkage factor for the entire manufacturing process. This provides information about the quality of the source material used. Furthermore, the values measured here can also be used to position the laminate 21 and in some cases to improve it. The web at the measuring point after the heating and ventilation zone 22 should not be significantly wider than the individual web before the lamination 21 . Furthermore, the shrinkage of the heating and ventilation zone 22 can be determined.

The web is conveyed to the first trimming section 24 . Here, the edges of the web are usually cut or trimmed. However, it is also possible to use natural edges, in which case only one side of the corrugated cardboard needs to be trimmed. However, the system according to the invention does not necessarily operate with natural edges. In the following process, the web is cut to the required size in the longitudinal and transverse directions and fed into a storage facility, as schematically shown on the right side of Figure 4 .

According to one aspect, the invention relates to optimization of web conditioning. When manufacturing single-sided webs and combining multiple single-sided webs with cover webs, it is desirable to optimize the positioning as much as possible. The term positioning here describes the position of the web in the device in which it is guided. Relative to the direction of travel, the web layer can be directed, for example centered, flush with the left edge or flush with the right edge. Position influencing devices 4, 14, 15, 16 can switch the web between a centered web position flush with the left edge or flush with the right edge. For example, a web position flush with the left edge may correspond to a position in which the left end point of the web perpendicular to the direction of travel is almost at or on the left edge point of the corrugated board apparatus perpendicular to the direction of travel.

Some position influencing devices 4, 14, 15, 16 may for example only change the web between web positions centered and left edge flush or centered and right edge flush.

For example, if the web is changed from a centered web position to a web position flush with the left edge before the first processing step, the web section flush with the left edge follows the centered web section. It has been found advantageous, in order to avoid rejects, that the web position of the web only changes at the subsequent position influencing device when the left edge flush web section reaches the subsequent position influencing device.

The more precisely the webs are positioned when joining, especially relative to each other, the less scrap is produced. Webs are combined with other webs at different points, where scrap can result when the web position of all webs changes simultaneously at different locations. For example, if the first web upstream changes from a center web position to a web position flush with the left edge and at the same time the second web downstream changes from a center web position to a web position flush with the left edge , then the still centered web section of the first web can be connected to the flush left edge web section of the second web. Therefore, a system is needed to control the timing sequence of outputting the adjustment signal to the position influencing device to reduce scrap.

According to the present invention, a computer-implemented method for controlling one or more webs of a corrugating board plant is provided. The method includes the following steps. At least one first input signal is first received, and a first adjustment signal is then determined at a first point in time based at least on the at least one first input signal. Subsequently, the first adjustment signal is output to the first position influencing device and at least one further point in time is determined based on at least one first input signal and/or at least one further received input signal. Finally, when at least one further point in time is reached, at least one further adjustment signal is output to at least one further position-influencing device.

At least one first input signal may have different sources. In some embodiments, at least one first input signal may be generated by human operator input. For example, a human operator might decide that corrugated board should switch from making center flutes to making flutes flush with the left edge to produce natural-edge corrugated board. Based on at least one first input signal, an adjustment signal is determined at a first point in time and output to a first position-influencing device, such as position-influencing device 4 .

Multiple input signals may also be required. For example, a human operator could first input that the web position should change when a specific condition occurs, such as a change in web width. The determination of the first point in time is then based on a first input signal from the human operator and another input signal received in determining the change in web width.

The adjustment signal may be output with a time delay in receiving the first input signal. For example, a human operator may input that the adjustment signal should be output 5 minutes after receiving at least one first input signal. In another example, the input signal may be output from a sensor that determines changes in web width. However, the sensor may be located in front of the first position influencing device and the first point in time is determined as the point at which the change in web width will reach the first position influencing device.

The first adjustment signal can be determined at any time once the first input signal is received. The determination of the first adjustment signal at the first point in time can therefore be performed continuously by this method.

Therefore, at least one further time point is determined in a downstream position influencing device, such as the position influencing device 14, 15, 16, at which the same web or another web also changes the web position at a suitable time point to avoid rejects. The determination of the at least one further point in time may be based on the first input signal and/or the at least one further received input signal. If at least one further point in time has been reached, at least one further adjustment signal is output to at least one further position-influencing device in order to change the web position of the web or the web position of the further web. Therefore, the computer-implemented method according to the present invention can reduce scrap by adjusting the timing of the web position of one or more webs.

In some embodiments, the first position influencing device and the at least one further position influencing device may be configured to change between a centered, left edge flush or right edge flush web position based on at least one adjustment signal the one or more webs.

In some embodiments, the determination of the at least one further adjustment signal may be based on the determination of a change in width and/or position of at least one of the one or more webs.

For example, a change in position may be detected by a sensor, so it may be determined that the upstream web has changed from a centered web section to a web section flush with the left edge and that the web section with flush left edge is now Sensor has been reached. Additionally, webs of different widths can be used in some corrugated board plants. For example, you can start with a web to be centered with a width of 2000mm. A 2100mm width web that should be used flush with the left edge can be spliced to a 2000mm width web. For example, if the web changes upstream from a central position to a position flush with the left edge at the transition between widths of 2000mm and 2100mm, a sensor downstream can determine by detecting the change in width from 2000mm to 2100mm, The 2100mm wide web section has arrived. The information from the sensor can then be used to cause the adjacent position influencing device to change the web position from a centered web position to a left edge flush web position. Determining at least one further adjustment signal based on a change in width and/or position can also improve the temporal control of the position-influencing device without requiring further information about the corrugated board plant, such as the distance between the position-influencing devices and/or the web(s) material speed.

In some embodiments, changes in width and/or position of one or more webs may be determined starting from a first point in time. Determining changes in width and/or position of one or more webs starting from a first point in time rather than earlier may be used, for example, to avoid undesired changes in web position. For example, it can be provided that the web position can only be changed by subsequent position-influencing devices after previous input by the operator or the splicing process. Detection of web position or web width may still occur, but this data may be ignored by computer-implemented methods until the first time point is generated. Furthermore, determining changes can only start from the first point in time, which saves computing power.

In some embodiments, determining changes in width and/or position of one or more webs may include the following. A first width measurement and/or a first position measurement by at least one sensor is received, wherein the at least one sensor is located at or upstream of at least one further position influencing device. A second width measurement and/or a second position measurement from at least one sensor is received. The first width measurement is compared to the second width measurement and/or the first position measurement is compared to the second position measurement. Optionally, at least one further input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement.

In some embodiments, the second width measurement and/or the second position measurement may occur after the first width measurement and/or the first position measurement.

In some embodiments, the determination of the at least one additional time point may include the following steps. A web speed is determined for at least one of the one or more webs. Based on the determined web speed and the distance between the first position influencing device and the at least one further position influencing device, a position of a section of the at least one web between the first position influencing device and the at least one further position influencing device is determined. the travel time between the first time point and the determined travel time, wherein at least one further time point is determined by the first time point plus the determined travel time.

If the web speed is known, further time points can be predetermined. If the web speed is known and the distance between the two position-influencing devices is known, at least one further point in time can be determined without a sensor, or only one sensor for determining the web speed may be required. detector, which may be present in the device anyway to detect parameters. Cost and computing power can be saved by reducing the number of sensors or using the information generated by sensors multiple times. The distance between two position influencing devices corresponds to the web length between the position influencing devices. For example, by means of deflection rollers, the length of the web moved between two position influencing devices can be longer than the direct distance between the two position influencing devices.

In some embodiments, the determination of the at least one additional time point may include the following steps. A web speed is determined for at least one of the one or more webs. Determination of a section of at least one web at least one further position influencing device upstream of the position influencing device and at least one further position influencing device based on the determined web speed and the distance between the upstream position influencing device and the downstream position influencing device The travel time between the downstream position influencing devices, wherein the upstream position influencing device has received the adjustment signal at a second time point, and at least one further time point is determined by the second time point plus the determined travel time.

The second time point need not be a second time point determined by a computer-implemented method. The term "second point in time" should be understood as distinct from the "first point in time". In particular, the term "second time point" may mean a time point after the first time point and before at least one further time point. Further time points may have been determined between the second time point and the first time point. A further point in time can also be determined between the second point in time and at least one further point in time.

Calculation errors can be reduced by determining other time points between individual position influencing devices lined up along the direction of travel. If further time points are determined on the basis of the first time point, then all deviations in the web speed along the entire corrugating board plant up to other locations affecting the device influence the determined travel time, with the travel time being the basis for determining further time points. When determining the travel time between two position influencing devices, optimally only deviations in the web speed between the two position influencing devices can influence the determined travel time. The web speed can be determined, for example, by sensors or known properties of web transport elements, such as revolving belts in corrugating board plants. Deviations from the determined web speed may be caused, for example, by inaccurate measurements of the sensor or because the web may be deformed by wetting and thus also stretched, which may lead to local speed changes.

In some embodiments, the web speed of at least one of the one or more webs may be determined starting from a first point in time. Determining the web speed from the first point in time allows determining the travel time from the first point in time. The fact that the web speed is determined from the first point in time should not rule out that the sensor does not detect the web speed beforehand. In this case, however, the information determined is not used to determine the travel time in the sense of a computer-implemented method.

In some embodiments, the determination of the at least one additional time point may include the following steps. The distance traveled by at least one of the one or more webs is determined. The distance traveled by at least one of the one or more webs is compared with the distance between the first position influencing device and the at least one further position influencing device, wherein when at least one of the one or more webs At least one further point in time is determined when the distance traveled corresponds to the distance between the first position-influencing device and the at least one further position-influencing device.

In some embodiments, the determination of the at least one additional time point may include the following steps. The distance traveled by at least one of the one or more webs is determined. The distance traveled by at least one of the one or more webs is compared with the distance between the position influencing device upstream of the at least one further position influencing device and the position influencing device downstream of the at least one further position influencing device, wherein , at least one further point in time is determined when the distance traveled corresponds to the distance between the upstream position influencing device and the downstream position influencing device.

When at least one further point in time is determined based on a comparison of the distance traveled and the distance between the two position-influencing devices, the at least one further point in time cannot be determined in advance, but rather by a continuous comparison of the distance traveled and the distance between the two position-influencing devices. Determined by distance. This embodiment may be more accurate where necessary, since the distance traveled can be determined directly, for example by means of the running wheel, rather than being calculated from the changing web speed where necessary. The use of running wheels as sensors can also be more cost-effective compared to sensors for width and/or position measurement, for example. In addition, running wheels with sensors are already available as standard components in corrugated cardboard plants.

In some embodiments, the distance traveled by at least one of the one or more webs starting from a first point in time may be determined. Determining the distance traveled since the first point in time allows the distance traveled since the first point in time to be accurately determined. The fact that the distance traveled is determined starting from the first point in time should not exclude that the sensor did not detect the distance traveled beforehand. In this case, however, the information determined is not used to determine the distance traveled in the sense of a computer-implemented method.

In some embodiments, the determination of at least one additional point in time may be based on detecting a gap in at least one of the one or more webs.

The web can be cut in corrugating equipment, for example by a cross-cutting machine. The downstream section can then be transported away at a higher web speed than the upstream web section, which creates gaps. Here it may be desirable for an upstream web section to be used in a different web position than its preceding downstream web section. Therefore, detection of gaps can be used to change the web position of the upstream web section. In this case, the gap can be detected, for example, via a determined width of web 0 .

In some embodiments, at least a portion of one of the one or more webs may have a natural edge with a web position flush with the left edge and/or flush with the right edge. As mentioned above, using natural edge web allows for more efficient use of material.

In some embodiments, the first input signal may be generated by a splicing process at the splicing location.

It may be desirable to change the web position of the web after the splicing process, for example because a new web with different properties (eg different width) is used. It may therefore be desirable to make the generation of the first input signal dependent on the first splicing process. In some cases, no sensors can be placed in front of the first position affecting device downstream of the splice location, so adjustments based on information from the sensors become complicated or impossible. Instead, you can use information that the splicing process has already occurred. This can also reduce the number of sensors. Furthermore, the position influencing device can be positioned directly at the splicing position or directly follow it, so it is desirable that the first time point is determined directly by the first input signal produced by the splicing process.

In some implementations, generating the first input signal may include the following steps. A first width measurement and/or a first position measurement is received from the first sensor. A second width measurement and/or a second position measurement is received from the first sensor. The first width measurement is compared to the second width measurement and/or the first position measurement is compared to the second position measurement. A first input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement.

It may be desirable to place at least one first sensor in front of or at the first position influencing device and use information from this sensor to control the first position influencing device. This can improve the accuracy of timing control of position influencing devices, for example using position influencing devices further away from the splicing position. This may also be desirable if no digital information about the splicing process is available or the distance between the splicing position and the first position influencing device is unknown.

In some implementations, generating the first input signal may include the following steps. A first width measurement and/or a first position measurement is received from the first sensor. The first width measurement and/or the first position measurement are compared to a reference value. A first input signal is generated if the first width measurement and/or the first position measurement differs from the reference value or if the first width measurement and/or the first position measurement corresponds to the reference value.

It may be desirable to generate the first input signal by comparison with a reference value. For example, the reference value may correspond to a possible standard width of the web. For example, you can specify that a web with a width of 2000mm should always be used in the center, and a web with a width of 2100mm should always be used flush with the left edge.

In some embodiments, there may be a time delay between the output of the first adjustment signal and the reception of the first input signal, wherein the determination of the time delay includes the following steps. A web speed in a downstream direction of at least one of the one or more webs is determined. Determining a section of at least one of the one or more webs at the splicing position relative to the first position based on the measured web speed in the downstream direction and the distance between the splicing position and the first position influencing device Affects the travel time between devices, where the time delay is determined by the travel time.

Alternatively or additionally, the determination of the time delay of the output of the first adjustment signal may comprise the following steps. The distance traveled by at least one of the one or more webs in the downstream direction is determined. The distance traveled by at least one of the one or more webs is compared with the distance between the splicing position and the first position influencing device, wherein when the distance traveled corresponds to the distance between the splicing position and the first position influencing device Determine the time delay based on the distance between the

If an adjustment signal is output immediately after receiving an input signal, for example when splicing a new stock roll with a different width than the previous roll, the web position may have been changed before the new web section with a different width has reached the position influencing device. Effect device changes. Therefore, it may be desirable to determine a time delay between the receipt of the first input signal and the output of the first adjustment signal, in order to only change the web position when, for example, a new web section with a different width has reached the influencing position. When the time delay is determined based on determining the web speed and determining the distance traveled, the final determined time delay may, for example, be based on the shorter determined time delay, the longer determined time delay, or an average of both. It is also possible to weight certain time delays.

In some embodiments, there may be a time delay between the output of the at least one further adjustment signal and the reception of the at least one further input signal, wherein the determination of the time delay includes the following steps. A web speed in a downstream direction of at least one of the one or more webs is determined. Based on the web speed measured in the downstream direction and the distance between the at least one sensor and the at least one further position influencing device, a section of at least one of the one or more webs is determined at the at least one sensor. travel time between the detector and at least one other position influencing device, where the time delay is determined by the travel time.

Alternatively or additionally, determining the time delay may include the following steps. The distance traveled by at least one of the one or more webs in the downstream direction is determined. A distance traveled by at least one of the one or more webs is compared with a distance between at least one sensor and at least one further position influencing device, wherein the distance traveled corresponds to the sensor and at least An additional location affects the distance between devices when determining the time delay.

A time delay may be desired, for example, in the case of sensors arranged upstream of the position influencing device, in order to take into account the travel time between the sensor and the position influencing device, in particular to avoid changing the web position too early . When the time delay is determined based on determining the web speed and determining the distance traveled, the final determined time delay may, for example, be based on the shorter determined time delay, the longer determined time delay, or an average of both. It is also possible to weight certain time delays.

In some embodiments, the output of the first adjustment signal may be time delayed from the reception of the first input signal, wherein the determination of the time delay may include the following steps. Determining a web speed along a downstream direction of at least one of the one or more webs and determining a web speed based on the measured web speed along the downstream direction and a distance between the first sensor and the first position influencing device or a travel time of a section of at least one of the plurality of webs between the first sensor and the first position influencing device, wherein the time delay is determined by the travel time. Alternatively or additionally, determining the time delay may comprise the steps of determining a distance traveled by at least one of the one or more webs in a downstream direction and dividing the distance traveled by at least one of the one or more webs. A comparison is made with the distance between the first sensor and the first position-influencing device, wherein the time delay is determined when the distance traveled corresponds to the distance between the first sensor and the first position-influencing device.

In some embodiments, the web may be particularly a paper or cardboard-like web.

In some embodiments, at least one of the at least one sensor may be selected from the group consisting of an optical sensor, a camera, a CCD camera, a CMOS camera, an ultrasound device, or a piezoelectric element working with ultrasound.

In some embodiments, the first position influencing device may comprise a first actuator, in particular an electric, hydraulic or pneumatic actuator, wherein the actuator is controlled by the first adjustment signal.

In some embodiments, the at least one further position influencing device may comprise at least one further actuator, in particular an electric, hydraulic and/or pneumatic actuator, wherein the at least one further actuator is controlled by at least one further adjusting Signal control.

In some embodiments, the first position influencing device and at least one further position influencing device may be controlled simultaneously.

For some applications it may be desirable to control multiple position influencing devices simultaneously, for example if they are configured parallel to each other and control different webs that will subsequently be laminated to each other.

In some embodiments, for simultaneous control of the first and at least one further position influencing device, the web speed of one or more webs may be reduced.

Reducing web speed improves local accuracy of web position changes. In addition, reducing the web speed reduces the mechanical loads on the corrugating equipment components.

In some embodiments, the simultaneous control of the first and at least one further position influencing device may only be carried out when the web speed of one or more webs is <100 m/min.

In some embodiments, corrugated board equipment can be used to produce corrugated board from paper or cardboard.

In some embodiments, a corrugated board plant may include at least one single-sided group. A single-sided group can be configured to perform at least one of the following functions. The first web is corrugated, thereby forming corrugation peaks on both sides of the web. Coat the corrugated peaks of the first web with adhesion promoter. The first web is combined with the cover web to create a single sided web.

In some embodiments, at least one unilateral group may comprise at least one position influencing device or at least one position influencing device positioned in an upstream direction of the unilateral group. It should be emphasized again that the guiding direction of the web corresponds to the direction of travel. The orientation of this direction relative to the corrugating equipment may differ for different webs. For example, a first web may be moved in a first direction and joined together at a single sided set with a second web coming from a second direction. After joining, the single-sided web may, for example, continue to travel in the first direction. The second direction may be almost opposite to the first direction. When the defined section of the web first crosses the position influencing device before it reaches the single side group, the position influencing device for the second web is then upstream of the single side group.

In some embodiments, a corrugated board plant may include at least one lamination station. At least one lamination station can be designed to combine the single sided web with the cover web. At least one lamination station may comprise at least one position influencing device or the at least one position influencing device may be positioned in the upstream direction of the lamination station.

In some embodiments, a corrugated board plant may include at least one cross-cutting machine. At least one cross-cutting machine may be configured to cut at least one of the at least one or more webs perpendicularly to the direction of travel.

In some embodiments, the corrugated board equipment may include at least one creasing machine and/or cutting machine. At least one creasing and/or cutting machine may be designed to perforate and/or cut at least one of the at least one or more webs parallel to the direction of travel. The creasing and/or cutting machine may include creasing and/or cutting tools. The creasing and/or cutting machine may be designed to orient itself and/or the creasing and/or cutting tools it contains perpendicular to the direction of travel. Therefore, position influencing devices before or at the creasing and/or cutting machine can be eliminated, since the position of the creasing and/or cutting machine is controlled relative to the web and not the web. Material position is controlled relative to the creasing and/or cutting machine. In some embodiments, positioning of the indentation and/or cutting machine may be based on at least one additional adjustment signal. Thus, in some embodiments, the positioning of the creasing and/or cutting machine may be based on the same process as the control of at least one further position influencing device.

Alternatively or additionally, in some embodiments the at least one creasing and cutting machine includes at least one position influencing device or the at least one position influencing device may be positioned upstream of the creasing and cutting machine. In some embodiments, the corrugated board equipment may include at least one splicer. At least one splicer may be configured to connect the end of the web to the beginning of a new web. Furthermore, a splicer may comprise at least one position influencing device.

According to the invention, there is also provided an apparatus, characterized by a controller having programming means for executing the computer-implemented method according to the invention. Furthermore, according to the invention, there is provided a device with storage means, characterized by a controller with programming means for executing the computer-implemented method according to the invention. Also provided according to the invention is a computer-readable medium characterized by programming means for executing a computer-implemented method according to the invention.

Although the invention has been described above and defined in the appended claims, it will be understood that the invention may optionally be defined in accordance with the following embodiments:

1. A computer-implemented method for controlling one or more webs of a corrugating board plant, the method comprising the steps of: receiving at least one first input signal; determining a first adjustment signal at a first point in time based at least on at least one first input signal; outputting the first adjustment signal to the first position influencing device; determining at least one further point in time based at least on at least one first input signal and/or at least one further received input signal; When at least one further point in time is reached, at least one further adjustment signal is output to at least one further position-influencing device.

2. Method according to aspect 1, wherein the first position influencing device and the at least one further position influencing device are configured to adjust the amplitude of the center, left edge flush or right edge flush based on at least one adjustment signal. Changing the one or more webs between web positions.

3. Method according to any one of the preceding aspects, wherein the determination of the at least one further adjustment signal is based on the determination of a change in width and/or position of at least one of the one or more webs.

4. Method according to any one of the preceding aspects, wherein a change in width and/or position of one or more webs is determined starting from a first point in time.

5. A method according to any one of the preceding aspects, wherein determining changes in width and/or position of the one or more webs comprises: receiving a first width measurement and/or a first position measurement by at least one sensor, wherein the at least one sensor is located at or upstream of at least one further position influencing device; receiving a second width measurement and/or a second position measurement made by at least one sensor; comparing the first width measurement to the second width measurement and/or comparing the first position measurement to the second position measurement; Optionally, at least one further input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement.

6. Method according to aspect 5, wherein the second width measurement and/or the second position measurement occurs after the first width measurement and/or the first position measurement.

7. The method according to one of the preceding aspects, wherein the determination of the at least one further point in time comprises the steps of: determining a web speed for at least one of the one or more webs; Based on the determined web speed and the distance between the first position influencing device and the at least one further position influencing device, a position of a section of the at least one web between the first position influencing device and the at least one further position influencing device is determined. the travel time between the first time point and the determined travel time, wherein at least one further time point is determined by the first time point plus the determined travel time.

8. The method according to one of the preceding aspects, wherein the determination of the at least one further point in time comprises the steps of: determining a web speed for at least one of the one or more webs; Determination of a section of at least one web at least one further position influencing device upstream of the position influencing device and at least one further position influencing device based on the determined web speed and the distance between the upstream position influencing device and the downstream position influencing device The travel time between the downstream position influencing devices, wherein the upstream position influencing device has received the adjustment signal at a second time point, and at least one further time point is determined by the second time point plus the determined travel time.

9. Method according to one of the preceding aspects, wherein the web speed of at least one of the one or more webs is determined starting from a first point in time.

10. The method according to one of the preceding aspects, wherein the determination of the at least one further point in time comprises the steps of: determining the distance traveled by at least one of the one or more webs; The distance traveled by at least one of the one or more webs is compared with the distance between the first position influencing device and the at least one further position influencing device, wherein when at least one of the one or more webs At least one further point in time is determined when the distance traveled corresponds to the distance between the first position-influencing device and the at least one further position-influencing device.

11. The method according to one of the preceding aspects, wherein the determination of the at least one further point in time comprises the steps of: determining the distance traveled by at least one of the one or more webs; The distance traveled by at least one of the one or more webs is compared with the distance between the position influencing device upstream of the at least one further position influencing device and the position influencing device downstream of the at least one further position influencing device, wherein , at least one further point in time is determined when the distance traveled corresponds to the distance between the upstream position influencing device and the downstream position influencing device.

12. Method according to one of the preceding aspects, wherein the distance traveled by at least one of the one or more webs starting from a first point in time is determined.

13. Method according to any one of the preceding aspects, wherein the determination of at least one further point in time is based on detecting a gap in at least one of the one or more webs.

14. Method according to any one of the preceding aspects, wherein in the case of a web position flush with the left edge and/or flush with the right edge, at least part of one of the one or more webs Has a natural edge.

15. A method according to any one of the preceding aspects, wherein the first input signal is generated by human operator input.

16. A method according to any one of the preceding aspects, wherein the first input signal results from a splicing process at a splicing location.

17. A method according to any one of the preceding aspects, wherein generating the first input signal comprises the steps of: receiving a first width measurement and/or a first position measurement from the first sensor; receiving a second width measurement and/or a second position measurement from the first sensor; comparing the first width measurement to the second width measurement and/or comparing the first position measurement to the second position measurement; A first input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement.

18. A method according to any one of the preceding aspects, wherein generating the first input signal comprises the steps of: receiving a first width measurement and/or a first position measurement from the first sensor; Compare the first width measurement and/or the first position measurement to a reference value; A first input signal is generated if the first width measurement and/or the first position measurement differs from the reference value or if the first width measurement and/or the first position measurement corresponds to the reference value.

19. The method according to any one of the preceding aspects, wherein there is a time delay between the output of the first adjustment signal and the reception of the first input signal, wherein the determination of the time delay includes the following steps: determining a web speed in a downstream direction of at least one of the one or more webs, and Based on the determined web speed in the downstream direction and the distance between the splicing position and the first position influencing device, determining a section of at least one of the one or more webs between the splicing position and the first position Affects travel time between devices, where time delays are determined by travel time; and/or Determining a distance traveled by at least one of the one or more webs in a downstream direction and comparing the distance traveled by at least one of the one or more webs with a distance between the splicing position and the first position influencing device Comparison, wherein the time delay is determined when the distance traveled corresponds to the distance between the splicing position and the first position influencing device.

20. A method according to any one of the preceding aspects, wherein the output of at least one further adjustment signal is time delayed from the reception of at least one further input signal, wherein the determination of the time delay comprises the following steps: determining a web speed in a downstream direction of at least one of the one or more webs, Based on the web speed measured in the downstream direction and the distance between the at least one sensor and the at least one further position influencing device, a section of at least one of the one or more webs is determined at the at least one sensor. the travel time between the detector and at least one other position-influencing device, where the time delay is determined by the travel time; and/or Determining the distance traveled by at least one of the one or more webs in the downstream direction Comparing the distance traveled by at least one of the one or more webs with the distance between the at least one sensor and the at least one further position influencing device, wherein the distance traveled corresponds to the at least one sensor The time delay is determined when the distance between the device and at least one other position-influencing device is determined.

21. The method according to any one of the preceding aspects, wherein there is a time delay between the output of the first adjustment signal and the reception of the first input signal, wherein the determination of the time delay includes the following steps: determining a web speed in a downstream direction of at least one of the one or more webs, Determining that a section of at least one of the one or more webs is at the first sensor based on the web speed measured in the downstream direction and the distance between the first sensor and the first position influencing device travel time to and from the first position influencing device, where the time delay is determined by the travel time; and/or Determining the distance traveled by at least one of the one or more webs in the downstream direction The distance traveled by at least one of the one or more webs is compared with the distance between the first sensor and the first position influencing device, wherein the distance traveled corresponds to the distance traveled by the first sensor and the first position influencing device. The time delay is determined when the first position affects the distance between devices.

22. Method according to any one of the preceding aspects, wherein the web is in particular a paper-like or cardboard-like web.

23. The method according to any one of the preceding aspects, wherein at least one of the at least one sensor is selected from an optical sensor, a camera, a CCD camera, a CMOS camera, an ultrasound device or a piezoelectric device working with ultrasound. A group of components.

24. Method according to any one of the preceding aspects, wherein the first position influencing device comprises a first actuator, in particular an electric, hydraulic or pneumatic actuator, wherein the actuator is controlled by a first adjustment signal .

25. Method according to any one of the preceding aspects, comprising at least one further position influencing device and at least one further actuator, in particular an electric, hydraulic and/or pneumatic actuator, wherein at least one The further actuator is controlled by at least one further control signal.

26. Method according to any one of the preceding aspects, wherein the first position influencing device and at least one further position influencing device can be controlled simultaneously.

27. Method according to aspect 26, wherein for simultaneous control of the first and at least one further position influencing device, the web speed of the one or more webs is reduced.

28. Method according to aspect 27, wherein the simultaneous control of the first and at least one further position influencing device is only performed when the web speed of the one or more webs is <100 m/min.

29. A method according to any one of the preceding aspects, wherein the corrugating board apparatus is used to manufacture corrugated board from paper or cardboard.

30. Method according to any one of the preceding aspects, wherein the corrugated board plant comprises at least one single-sided group.

31. The method of clause 30, wherein the unilateral group is configured to perform at least one of the following functions: corrugating the first web, thereby forming corrugation peaks on both sides of the web; Coat the corrugated peaks of the first web with an adhesion promoter; The first web is combined with the cover web to create a single sided web.

32. Method according to aspect 30 or 31, wherein the at least one unilateral group includes at least one position influencing device or at least one position influencing device is positioned in an upstream direction of the unilateral group.

33. Method according to any one of the preceding aspects, wherein the corrugated board plant comprises at least one lamination station.

34. Method according to clause 33, wherein the lamination station is designed to combine the single sided web with the cover web.

35. Method according to aspect 33 or 34, wherein the at least one lamination station comprises at least one position influencing device or the at least one position influencing device is positioned in the upstream direction of the lamination station.

36. Method according to any one of the preceding aspects, wherein the corrugated board plant comprises at least one cross-cutting machine.

37. The method of clause 36, wherein the at least one cross-cutter is configured to cut at least one of the at least one or more webs perpendicularly to the direction of travel.

38. Method according to any one of the preceding aspects, wherein the corrugated board plant comprises at least one creasing and/or cutting machine, in particular wherein the creasing and/or cutting machine comprises creasing and/or cutting tools.

39. Method according to aspect 38, wherein at least one creasing and/or cutting machine is designed to perforate and/or cut at least one of the at least one or more webs parallel to the direction of travel, In particular, the creasing and/or cutting machine is designed such that it and/or the creasing and/or cutting tools contained therein are positioned perpendicular to the direction of travel.

40. A method according to any one of the preceding aspects, wherein the corrugated board plant comprises at least one splicer.

41. The method of clause 40, wherein the at least one splicer is configured to connect the end of one web to the beginning of a new web.

42. Method according to clause 40 or 41, wherein the at least one splicer comprises at least one position influencing device.

43. Apparatus, characterized by a controller having programming means for executing the method according to any one of the preceding aspects.

44. Apparatus with storage means, characterized by a controller with programming means for executing the method according to any one of the preceding aspects.

45. Computer readable medium characterized by programming means for performing the method of any of the preceding aspects.

1: Stock roller 2: Location 3:Storage 4: Position influencing device 5:Corrugating roller 6: Gluing device 7: Sensor 8:Bridge 9: Bridge inventory 10, 11, 12: Sensor 13:Stock roller 14, 15, 16: Position influencing device 17: The web passes through the preheater 18: Sensor 19: Glue coating unit 20: Sensor 21:Lamination Department 22: Heating and ventilating areas 23: Sensor 24: Trimming part

Other aspects and advantages of the invention will become apparent from the detailed description of the accompanying drawings.

Figure 1 shows a schematic overview of an apparatus for manufacturing corrugated cardboard;

Figure 2 shows a schematic diagram of a single-sided group of equipment for manufacturing corrugated cardboard according to the present invention;

Figure 3 shows a schematic diagram of a bonding, lamination station and heated ventilation area according to the invention;

Figure 4 shows a schematic diagram of a finishing part according to the invention.

Claims (15)

A computer-implemented method for controlling one or more webs of a corrugated board plant, the method comprising the following steps: receiving at least one first input signal; determining a first adjustment signal at a first point in time based at least on the at least one first input signal; Output the first adjustment signal to the first position influencing device; determining at least one further point in time based at least on the at least one first input signal and/or at least one further received input signal; When the at least one further point in time is reached, the at least one further adjustment signal is output to at least one further position influencing device. Method according to claim 1, wherein the first position influencing device and the at least one further position influencing device are configured to center, left edge flush or right edge flush the web based on at least one adjustment signal. The one or more webs are changed between positions. Method according to any one of the preceding claims, wherein the determination of the at least one further adjustment signal is based on the determination of a change in width and/or position of at least one of the one or more webs. The method of claim 3, wherein determining changes in width and/or position of the one or more webs includes: receiving a first width measurement and/or a first position measurement by at least one sensor, wherein the at least one sensor is located at or upstream of the at least one further position influencing device; receiving a second width measurement and/or a second position measurement made by the at least one sensor; comparing the first width measurement and the second width measurement and/or comparing the first position measurement and the second position measurement; Optionally, at least one further input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement. The method according to any one of the preceding claims, wherein the determination of the at least one additional time point includes the following steps: determining a web speed for at least one of the one or more webs; A section of the at least one web is determined based on the determined web speed and the distance between the first position influencing device and the at least one further position influencing device. The further position influences the travel time between the devices, wherein the at least one further time point is determined from the first time point plus the determined travel time. The method according to one of the preceding claims, wherein the determination of the at least one further time point includes the following steps: determining a web speed for at least one of the one or more webs; Determination of a section of the at least one web at the at least one further position influencing device between the upstream position influencing device and the at least one further position influencing device based on the determined web speed and the distance between the upstream position influencing device and the downstream position influencing device The travel time between the downstream position influencing devices of the further position influencing device, wherein the upstream position influencing device has received the adjustment signal at a second time point, the at least one further time point being added to the second time point Determine the travel time determined above. The method according to one of the preceding claims, wherein the determination of the at least one further time point includes the following steps: determining the distance traveled by at least one of the one or more webs; The distance traveled by at least one of the one or more webs is compared with the distance between the first position influencing device and the at least one further position influencing device, wherein when the one or more webs The at least one further point in time is determined when the distance traveled by at least one of the materials corresponds to the distance between the first position influencing device and the at least one further position influencing device. The method according to one of the preceding claims, wherein the determination of the at least one further time point includes the following steps: determining the distance traveled by at least one of the one or more webs; The distance traveled by at least one of the one or more webs is compared to the distance between the position influencing device upstream of the at least one further position influencing device and the position influencing device downstream of the at least one further position influencing device. Comparison, wherein the at least one further point in time is determined when the distance traveled corresponds to the distance between the upstream position influencing device and the downstream position influencing device. Method according to any one of the preceding claims, wherein in the case of a web position flush with the left edge and/or flush with the right edge, at least part of one of the one or more webs Has a natural edge. A method according to any one of the preceding claims, wherein the first input signal is generated by input from a human operator and/or wherein the first input signal is generated by a splicing process at a splicing location. The method according to any one of the preceding claims, wherein generating the first input signal includes the following steps: receiving a first width measurement and/or a first position measurement from the first sensor; receiving a second width measurement and/or a second position measurement from the first sensor; comparing the first width measurement to the second width measurement and/or comparing the first position measurement to the second position measurement; The first input signal is generated if the first width measurement is different from the second width measurement and/or if the first position measurement is different from the second position measurement. The method according to any one of the preceding claims, wherein generating the first input signal includes the following steps: receiving a first width measurement and/or a first position measurement from the first sensor; Compare the first width measurement and/or the first position measurement with a reference value; The first input signal is generated if the first width measurement and/or the first position measurement differs from the reference value or if the first width measurement and/or the first position measurement corresponds to the reference value. An apparatus having a controller of a programming device for executing a method according to any one of the preceding claims. A device with a storage device and a controller with a programming device for executing the method according to any one of claims 1 to 12. A computer-readable medium for a programming device that executes the method according to any one of claims 1 to 12.