EP2632835A1 - Verfahren zum steuern eines schneiders und papierhandhabungsanlage - Google Patents
Verfahren zum steuern eines schneiders und papierhandhabungsanlageInfo
- Publication number
- EP2632835A1 EP2632835A1 EP11776192.4A EP11776192A EP2632835A1 EP 2632835 A1 EP2632835 A1 EP 2632835A1 EP 11776192 A EP11776192 A EP 11776192A EP 2632835 A1 EP2632835 A1 EP 2632835A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- web
- paper web
- cutter
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/30—Arrangements for accumulating surplus web
- B65H20/32—Arrangements for accumulating surplus web by making loops
- B65H20/34—Arrangements for accumulating surplus web by making loops with rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/125—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/27—Means for performing other operations combined with cutting
- B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/1882—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web
- B65H23/1884—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web with step-by-step advancement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/449—Features of movement or transforming movement of handled material
- B65H2301/4493—Features of movement or transforming movement of handled material intermittent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0448—With subsequent handling [i.e., of product]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0605—Cut advances across work surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/081—With randomly actuated stopping means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/162—With control means responsive to replaceable or selectable information program
Definitions
- Embodiments of the invention relate to the field of paper handling, such as the production of single sheets and the merging thereof into groups for inserting them into one or more envelopes for shipping.
- embodiments relate to controlling a cutter to cut a printed paper web to produce a plurality of cut sheets for processing in such a paper handling equipment.
- Embodiments of the invention thus relate to the processing of a web-shaped, printed material which is divided into sheets, wherein the sheets may be printed with individual data.
- Fig. 1 shows a graph which, in a continuously moving material web, for. B. when cutting blank format papers, the speed over time as well as the cutting times or times for cross-cutting the web represents. As can be seen, in this conventional approach, the speed remains constant over time due to the rotating blade, and the cuts are made at a constant interval.
- printed paper webs which are fed in the form of one or more rolls of a system, cut into individual letterhead and assembled according to the individual printed data to groups of sheets for a customer, folded, possibly provided with a supplement and then in filled an envelope.
- FIG. 2 shows a graphical representation of a clocked material web, as used in today known insertion machines.
- the speed profile of the material web is such that, starting from time 0, the paper web is accelerated to the desired speed. Shortly before the cut, the speed is decelerated until the paper web stops so that the cut is made when the web is stationary. This pattern is repeated over time, namely following the cut, an acceleration of the web to the desired speed, and before the next cut, the deceleration of the paper web to a standstill to again perform the cut.
- Embodiments of the invention provide a method of cutting a paper web during movement thereof to produce a plurality of cut sheets for processing by a paper handling equipment, comprising the steps of:
- Embodiments of the invention provide a method of controlling a cutter to cut a printed paper web during movement thereof to produce a plurality of cut sheets for processing by a paper handling equipment, comprising the steps of:
- a paper handling system for processing single sheets in groups consisting of one or more cut sheets, comprising: a paper web feeder for feeding the paper web to the paper handling equipment; a cutter for cross-cutting the paper web to produce the cut sheets for further processing in the paper handling equipment; one or more processing stations following the cutter; and a controller operative to control the cutter according to embodiments of the invention.
- Yet other embodiments of the invention provide a computer program product having a computer program stored on a machine-readable medium.
- Embodiments of the invention thus make it possible to react flexibly to the processing (in particular a change of conditions during processing) of the sheets. Likewise, it is possible to react to disruptions in the subsequent processes in such a timely manner that a waste is reduced or even avoided.
- Embodiments of the invention effect the adjustment of both the web speed and the cutter speed. Other embodiments of the invention effect adjustment of either web speed or cutter speed.
- the first information is obtained from the printed paper web and from the job description. In other embodiments of the invention, the first information is obtained from the printed paper web or from the job description.
- the paper handling equipment-specific information is obtained from the paper handling equipment (feedback), e.g. via sensors or similar.
- the paper handling facility specific information is pre-determined, e.g. calculated and provided based on the job description of a job and / or the configuration of the paper handling system.
- the paper handling equipment-specific information is partially obtained from the paper handling equipment and partially pre-calculated based e.g. on the job description of a job and / or the configuration of the paper handling facility and provided.
- the cutter speed is defined by the speed at which the cutting elements of the cutter are moved, e.g. a speed with which a lifting knife is moved up and down, or a speed with which a rotary knife rotates.
- Embodiments of the invention thus combine the advantages of the methods described above, as known in the art, by continuous cutting of the paper web, as long as it makes sense and is necessary.
- the sheets are cut while the web is running, but this process can be stopped at any time, so that the advantage of the clocked process is maintained. But it can also be done by deliberately slowing down the material web and speaking controlling the cutter are generated a longer time between two cuts, so that can be reacted to known longer process steps or disturbances in the subsequent processing in advance.
- the embodiments of the invention offer advantages in terms of the achievable speed in the processing of the paper web, since it is now possible to work at a higher speed, at the same time widening the range of use of the cutter. Furthermore, it is also possible to operate in continuous operation at the same throughput as in the start / stop mode, but at a lower speed, so that a load on the paper web, eg stresses in the web, and the cutter is reduced.
- Embodiments of the invention provide a method as explained above, wherein it is provided that the web speed and the cutter speed are set such that the web speed and the cutter speed are the desired, set speeds before cutting, ie before the time for cross-cutting have already assumed, so are no longer in the acceleration phase, but are already on the transport speed for the web and the necessary cutting speed for the desired cross cutting.
- a specific profile can be predefined depending on the job to be processed, Job.
- the respective intersection point for the plurality of individual sheets to be produced for an order is determined in advance, such that subsequent to this determination of a cutting time or the time for the cross-cutting for the at least one single sheet of the cutting time or the time for the cross-cutting is determined for at least one further single sheet and the wind speed for the setting of the web speed and the Schneidergesch determined for the at least one further single sheet values, for example, provided to be retrieved after generating the at least one cut sheet to set the plant to the next time for cross-cutting.
- first a first time duration between two successive sections is defined.
- a second period of time is then determined which, for example, indicates how long the processing of the at least one single sheet takes either in the entire handling plant or in individual modules thereof, for which information from both the paper web / the job description as well as information from the paper processing plant are used. If it now appears that the second period of time exceeds the first time duration, the cutter speed and the web speed are acted upon in order to set them so that the first time duration is greater than or equal to the second time duration.
- the time required for a process step within the plant is greater than the time between two cuts, so that in case of an error or a delay in the processing of a sheet within the plant, the speed of the cutter can be reacted and the paper web is adjusted, for. B. is reduced to compensate for the longer processing of at least one single sheet without the cutter must be stopped.
- the cutter can also be stopped.
- the first information and the second paper handling installation-specific information comprise the following parameters: the individual sheets to be processed by the paper handling installation, and / or the type of processing of the individual sheets in the paper handling installation, and / or a capacity of the paper handling installation for processing the paper handling equipment Single sheets.
- the parameters relating to the type of processing of the individual sheets in the paper handling system may include a size of the groups to which the singled individual sheets are combined and / or a membership of a plurality of cut individual sheets to a group and / or an end of a group.
- the parameters relating to the individual sheets to be processed by the paper handling installation may include physical properties of the paper web or of the at least one single sheet.
- Parameters relating to the capacity of the paper handling equipment may be a number of those determined by the Paper handling system or by a module of the same simultaneously processable single sheets and / or a speed with which the system or a module of the system can process the individual sheets include.
- the paper web can be printed with multiple uses, wherein the paper web for producing the single sheets is preferably cut before the transverse cutting along the conveying direction. Adjusting the web speed and cutter speed may also include stopping the paper web and stopping the cutter. Alternatively, a longitudinal cut may also be made earlier, thereby creating two parallel webs that are superimposed and cut together transversely.
- the cutter can be a rotary cutter with one or more knives or a laser cutter. Furthermore, any desired cutters can be used which make it possible to cross-cut a paper web during its transport (continuous cutters).
- the paper handling equipment or module thereof may include an inserter, a folder, a collection station, and / or other known paper handling stations or modules, the second paper handling facility specific information also including a maximum number of sheets that can be processed simultaneously.
- the cutting time for the cross-cutting of the paper web is further determined based on third information indicating a disturbance or a disturbance event in the paper handling equipment or in a module of the paper handling equipment.
- FIG. 1 shows a graph which, in the case of a continuously moving material web, z.
- Figure 2 is a graph showing the speed over time and the times for cross-cutting in a clocked material web.
- Fig. 4 (a) shows a velocity profile of the paper web as achieved in accordance with embodiments of the present invention
- Fig. 4 (b) shows a course of the speed of the paper web according to embodiments of the invention similar to Fig. 4 (a), but here the web is completely stopped between two cuts; a speed profile for the cutter as achieved in accordance with embodiments of the present invention; a course of the speed for the cutter according to embodiments of the invention similar to Figure 4 (a), but here the cutter is completely stopped between two cuts; an embodiment of the method for controlling a cutter; an example of the determination of a time for cross-cutting according to embodiments of the present invention; a schematic representation of a paper handling system according to embodiments of the invention; and
- FIG. 10 is a schematic representation of a paper handling system according to another embodiment of the invention, in which the controller is arranged in the cutter;
- Fig. 11 is a schematic representation of another paper handling system according to yet another embodiment of the invention.
- Figure 3 (a) shows a schematic representation of a portion of a paper handling equipment used to print from a plain or unprinted paper web 300 to generate a plurality of individual sheets 304.
- the paper handling system includes a paper supply 400 that provides the paper web 300.
- the paper web 300 is provided in the form of a paper roll provided by the paper supply 400.
- the paper supply 400 includes a coiler that includes a motor 402 for moving the paper roll 404 at a predetermined speed to provide a predetermined length of the paper web 300 within a predetermined period of time.
- the present invention is not limited to providing the paper web 300 in the form of a roll 404, but that the paper web may also be provided by other suitable means.
- the paper handling apparatus further includes a cutter 406, preferably a rotary cutter, which cuts the paper web 300 into the cut sheets 304 as it moves.
- the cutter 406 is driven by a motor 408.
- a decoupling device 410 is provided, which serves to decouple the paper web 300.
- the decoupler 410 is configured to form a loop 412 such that a predetermined length of the paper web 300 is received between the paper supply and the cutter 406 in the loop 412, thereby decoupling the portion 300a of the paper web 300 between the decoupler 410 and the decoupler 410 Cutter 406 and the part 300b of the paper web 300 between the paper supply 400 and the decoupler 410 is effected.
- the apparatus further includes a feed drive 414, which in the example shown comprises a pair of rollers 418 driven by the motor 416.
- the feed drive 414 is disposed between the decoupling device 410 and the cutter 406 and serves to drive the paper web 300 in the region between the decoupler 410 and the cutter 406 to feed them to the cutter 406 at a high web speed, however, the feed drive is provided in order to allow a controlled stopping of the paper web, more precisely of the section 300a thereof, which is arranged between the decoupler 410 and the cutter 406, within a cutting cycle, ie between two immediately successive cuts of the cutter 406.
- a) thus shows a paper handling device according to embodiments of the invention which serves to cut the paper web 300 during movement thereof so as to produce a plurality of single sheets 304 for processing.
- the paper web 300 is driven at a high web speed, with a high web speed in connection with the subject of the present application is to be understood that this speed is greater than 1 m / s, with a maximum speed, for example, is above 10 m / s.
- High web speed is desired to achieve a predetermined number of cuts per hour, for example, of at least 12,000 cuts per hour for the production of A4 size sheets. With the same high web speed of 1 m / s or more, smaller cuts can produce more cuts per hour or, with larger formats, fewer cuts per hour.
- the cutter 406 is driven by the motor 408 to cut the moving paper web 300 into the cut sheets 304, and according to preferred embodiments, due to the provision of the decoupler 410 and the drive 414, the paper web may be stopped between successive cuts, for example in case of failure in processing the cut sheets in a subsequent station.
- FIG. 3 (a) further shows a device 420, which is provided between the paper supply 400 and the decoupling device 410 and serves to hold the paper web 300 taut between the paper supply 400 and the decoupling device 410, for which purpose a so-called dancer roll 422 is provided.
- the means 420 thus causes the paper web 300 between the paper supply 400 and the decoupler 410 is stretched, using the dancer roller 422 and the pulleys 424 and 428, but this does not cause decoupling, since the dancer roller 422 is provided, the voltage in the paper web 300, whereas via the decoupler 410 or the paper buffer, decoupling takes place so that the paper web in the loop 412 is not tensioned.
- the distance between the decoupling device 410 and the drive 414 is preferably chosen to be as small as possible in order to minimize the mass of the section of the paper web 300 to be moved by the drive 414, thereby enabling rapid stopping between successive cuts.
- an approach is provided which increases the throughput during cutting and at the same time enables the required stopping of a paper web.
- a start / stop cutter avoiding an unwanted cut
- a continuous cutter high throughput
- a rotary cutter used, so that the paper web can be cut during transport, so without stopping the same. This achieves an increased throughput compared with the start / stop approach, since a high web speed can be used, which leads to a desired number of individual sheets in a predetermined time period.
- the machine is configured in such a way that the paper web is controlledly stopped within a cutting cycle can be.
- the controlled stop is made possible by the feed drive and / or the decoupling device.
- the controlled stopping is possible in such embodiments by the decoupling, since only the part 300a of the low mass and inertia track needs to be stopped, the remaining higher mass / inertia part 300b is stopped / stopped slower a part of the paper web is taken up in the decoupling device (eg by enlarging the loop).
- the decoupler 410 is disposed in front of the cutter 406 to receive a portion of the paper web in the form of the loop 412.
- the portion of the paper web 300a to be conveyed to the cutter is decoupled from the part of the paper web 300b provided to the decoupler 410 so that, in the case of stopping the cutter, only the portion of the paper web located between the decoupling device and the cutter Conveying elements 418 of the drive 414 must be stopped, this part, vergli- Chen with the total length of the moving paper web has a lower mass, whereby the stop is enabled within a cutting cycle.
- the section 300a of the paper web 300 is advanced between successive cutting times or within a cutting cycle in the direction of the cutter 406, wherein the paper web 300 and the section 300a can be stopped as long as the feed has not exceeded a predetermined threshold.
- the inventive approach combines the advantages of continuous cutters and start / stop cutters by using a decoupler 410 in a continuous cutter.
- decoupling devices are previously known only in connection with start / stop dressers, see, for. B. the DE 1001 1006 AI.
- Continuous cutters as known in the art, for example, work with a paper web that is always taut.
- the web tension is z. B. on the above-mentioned dancer rolls and pulleys, but this will not take place decoupling.
- a feed drive pulls the web from the roll to the cutting element, so that a high mass must be moved with a high inertia, so that no secure stopping within a cutting cycle is made possible.
- An example of a continuously operating cutter which moves the entire paper web from the roll to the cutting element is described in EP 0771623 B1.
- the web is not decoupled in the feeder, i.
- the train is constantly under tension and the entire mass of the train is to move.
- a decoupling is not provided in continuously working cutters.
- the decoupling device 410 is configured here to form a first, large loop 412 and subsequently, ie, between the loop 412 and the cutter 406, a further, smaller loop 430.
- the feed drive 414 comprises In the embodiment shown, two pairs of rollers, namely the already mentioned with reference to FIG. 3 (a) pair of rollers 418 and the second loop 430 following pair of rollers 432. The embodiment shown with reference to FIG. 3 (b) thus allows an even better 10 decoupling the track sections 300a and 300b and thus even more reliable stopping between successive cuts.
- Fig. 3 (c) shows another embodiment, which is similar to that in Fig. 3 (a), but the distance between the decoupler 410 and the device 15 420 is larger. Otherwise, the functionality of the arrangement shown in Fig. 3 (c) corresponds to that of Fig. 3 (a).
- Fig. 3 (d) shows yet another example of the arrangement of the arrangement which is similar to Fig. 3 (b), but without the large loop, but only with the smaller loop 430.
- the paper web 300 may be printed. In such a case, it may further be provided to determine the cutting time for the cross-cutting , 25 before cutting the printed paper web 300. This is done according to embodiments that will be described in more detail below based on first information obtained from the printed paper web 300 and / or job description and based on second paper handling facility specific information. The web speed and / or the cutter speed is set so that the paper web 300 for the production of
- the stopping of the paper web 300 may be controlled depending on the read first information from the printed paper web 300 and second paper handling equipment specific information. Examples of the first information from the printed paper web 300 and the second, paper-based
- FIG. 4 (a) shows a velocity profile as in accordance with embodiments of the present invention Invention is achieved. Over time, the course of the speed of the web can be seen. As can be seen from Fig. 4 (a), the cuts are no longer spaced in a fixed pitch, but the pitch varies. Subsequent to a first cut at time tl is detected, for. Based on information from the job description and based on signals from the downstream paper handling equipment, eg based on paper handling equipment specific information or signals, that the processing of the sheet which has just been cut takes longer.
- the cutting time for cutting the next sheet is redetermined, and this cutting time is achievable by reducing the speed for a period between t1 and t2 and from t2 to the next time for cross-cutting t3 rises again.
- the speed of the material web has already reached the desired speed shortly before the time t3, so that it is present at the time of the cut.
- the following three sections are equally spaced at times t4, t5 and t6. After the cut at time t6, it is again found that a longer interval is required until the next time for transverse cutting, so that the material web is decelerated again (see t7).
- the performance of a cutter arranged in an input channel of a paper handling system can be increased by using a circular blade for the cut, which cuts in the running material web.
- the goal is to let the web run continuously between two cuts, shortening the time between cuts, resulting in higher performance. This is desirable, for example, between times t3 and t6 in FIG. 4 (a).
- a typical situation in which this occurs is the gathering of many sheets into a larger group, since the collection station can still pick up sheets in close order. Now, if the end of the group is detected, for example, at time t6 in Fig.
- Fig. 4 (b) shows a course of the speed according to embodiments of the invention similar to Fig. 4 (a), but here the paper web between two cuts, namely between the cuts at time tl and t3 and between (see time t7) the Cut is completely stopped at time t6 and t8, but has again reached the required speed for the cut for the subsequent step at time t3 or t8.
- the control according to the invention can also be switched such that switching between the continuous operation and the start / stop operation of the cutter can. This can be done, for example, depending on a format length of the individual sheets to be created or depending on instructions in the job description. Furthermore, it can be provided, in continuous operation, to set the predetermined cutting speed between the cutting times, depending on the format to be produced. More specifically, for a shorter format of at least one single sheet to be produced, the cutter speed can be increased independently of the web speed or reduced for a longer format.
- FIGS. 5 and 6 show, similar to FIGS.
- a velocity profile for the cutter, as used according to embodiments for various formats.
- the cutter speed for example, the rotational speed of a rotary knife reduced, so that the time between ti and t 3 is greater than between the subsequent sections.
- a sheet is produced at t 3 , which has a larger format, for example, is longer than a sheet is cut at U.
- the cutting speed between two cuts can also be increased (not shown in FIG. 5), for example to cut a shorter format.
- the cutter can also be stopped, for example if the reduction of the speed is not sufficient to produce the desired format length.
- the start / stop operation can be selected due to the format size, for example, in a paper of four inches in length, the acceleration distance may be too small because the sheet-to-sheet distance is too short, considering the slanting installation of the knife opposite the format length. So it can be provided in short formats to work in start / stop mode.
- the start / stop operation may be desirable if, for example, a so-called strip cut is to take place in which narrow transverse strips are cut out of the paper web between successive individual sheets.
- An exemplary embodiment of the method for controlling a cutter will be explained in more detail below with reference to FIG. Starting point is the step 100, according to which the paper feeder runs at a speed vp and the cutter at a speed v s .
- step 102 information is collected from the paper web and / or from the job description.
- step 104 information is collected from the paper handling facility. It should be noted that steps 102 and 104 may also be performed in a common step or in reverse order.
- the information obtained is preferably a parameter indicating the cut sheets to be processed by the paper handling equipment and / or indicating the type of processing of the cut sheets in the paper handling equipment and / or the capacity of the paper handling equipment for processing the paper handling equipment Describing single sheets.
- the size of the groups to be processed that is to say the number of single sheets to be combined into a group, can be recorded and / or a membership of a plurality of individual sheets in a group and / or an end of a group.
- the paper handling equipment can indicate how many single sheets can be processed simultaneously by the same or by a module thereof and / or at what speed. For example, it can be specified how many sheets can be picked up at most within a collecting station and extended together, which in turn can be caused by downstream modules, for example by the maximum number of individual sheets, which can simultaneously process a folding unit.
- a time for cross-cutting is determined for at least one cut sheet to be produced in step 106, and in step 108, the speeds v P and vs are set so that the paper web already is printed with the information for the single sheets, is cut at the desired or specific time for cross-cutting. Subsequently, the process is repeated to realize a continuous, predictive cutting process.
- 8 shows an example of the determination of a time for cross-cutting, wherein according to the exemplary embodiment shown in step 120, first of all a first time duration t1, which lies between two successive sections, is determined.
- step 122 it is estimated how long a processing processing of at least one cut cut sheet by the paper handling equipment or at least a part thereof, and this time period is determined as the time t2 in step 122.
- step 124 a comparison of t1 and t2 is made. If it results in step 126 that the second time duration is greater than the first time duration, then in step 128 the cutter speed v s and / or the path speed vp is reduced. Otherwise, if it is determined that the time t2 is smaller than the time t1, then in step 130, the speeds are increased. The process then returns to step 120. If the time duration t2 is equal to the time duration t1, preferably no change in the speeds takes place.
- Fig. 9 shows a schematic representation of a paper handling system according to embodiments of the invention.
- the system comprises a paper web feed 200, which is followed by a cutter 202, for example a rotary cutter or a laser cutter.
- the cutter 202 separates those fed through the device 200
- the cutter 202 also comprises a cross cutter and the collecting station 204 comprises a merger which places the two sheets resting parallel to the exit of the cutter 202 in a superimposed arrangement and places them in a collecting compartment of the collecting station.
- a gathering path 206 which serves to append supplements to the collected group that is being deployed from the collection station 204, may join the gathering station 206.
- An inserter 208 then joins to insert the groups into corresponding envelopes.
- the arrangement further comprises a computer 210 comprising a controller 212 and a database 214.
- the controller serves to control the various modules of the paper handling system for a cooperation thereof, wherein in FIG 9 shows only the connections between the controller and modules that are relevant to the subject matter of the invention.
- the paper web feed 200 and the cutter 202 each comprise a motor M, which is controlled by corresponding control signals from the controller 216.
- the modules 200, 204, 206 include
- sensors S whose sensor signals are provided to the controller, so that based on information from the paper web, which are detected by the sensor S in the paper web feeder 200 of the printed paper web, and based on information from the collation path of the sensors in the modules 204, 206 and 208, a control of the motors M of the feeder 200 and the cutter 202
- the computer 210 has an interface by means of which it is possible to provide a job description, ie a description of a task to be carried out with regard to the compilation of Groups etc. and the enveloping of the same to receive, with the job description is stored in the database 214.
- the controller accesses information from the job description as well as information from the sensors to drive the motors for a corresponding cutting of the paper web.
- FIG. 10 is a schematic illustration of a paper handling system according to another embodiment of the invention, in which the controller 216 is disposed in the cutter 202.
- the controller 216 in the cutter 202 receives data from the sensors described above, and possibly from the database 214, and generates and outputs the required drive signals for the cutter and the other components based on this data, in the manner described above.
- FIG. 11 shows an exemplary embodiment of a paper handling system, wherein the paper web feed 200 serves to feed a paper web 300 to the system and which is printed in two in the exemplary embodiment shown, ie on the paper web 300 are each adjacent to each other (in the cutting direction of the cutter 202), the data for the single sheets 302 printed.
- the cutter 202 includes a cross cutter 202a that cuts the paper web 300 between two adjacent imprints before the paper web 300 reaches the cross cutter 202 that separates the cut sheets from the paper web 300, as shown by the cut sheets 304 and 306. In the merger 204a, the sheets are superimposed and then transferred together to the collection station 204b. In the embodiment shown in Fig.
- a folding unit which receives from the collecting station 204b extended from the collecting tray groups of sheets, folds and outputs to a gathering path 207. Additional sheets can be added to the group in the compilation track. The groups of sheets are output from the gathering web 207 and an inserter 208.
- the control is again via the computer 210, in particular the control of the drive speed of the paper web 300 and the knife 202.
- 10 and 1 1 embodiments for a paper handling system is a stop or a slowdown of the paper web 300 z. B. triggered by information obtained from the paper web 300 itself by an upstream reading (see the sensors in the device 200 in Fig.
- the cutting machine 202 is connected to the controller 216, which carries out the method according to the invention described above, so that it can be recognized what will happen or pass through in the follower components 204, 206 and 208, z.
- the controller 216 which carries out the method according to the invention described above, so that it can be recognized what will happen or pass through in the follower components 204, 206 and 208, z.
- free stops, disturbances and the like are detected.
- the detection is either "active" by appropriate sensors or “passive” by a calculation.
- the calculation is based on the first information and the second paper handling facility specific information.
- a group end in a follower component 204, 206 or 208 can be detected by a sensor that recognizes a last good in a group, eg by reading a code applied to the good or by a recognition of the goods (eg an imprint or a print) Part of it).
- the end of the group can also be calculated based on the first information obtained, for example, from a job description or from the paper web, and based on the second paper handling system-specific information, which for example indicates a speed with which one Follower component 204, 206 or 208 transports the goods. The time between two cuts is then optimally adjusted by the control with respect to the respective situation.
- the group change in the collection station 204 may take longer than the arrival of the individual sheets or single sheets into the collection station during the collection of the group.
- the end of a group or the beginning of the next group is determined either in advance by reading from the paper web 300 or by receiving / reading the information from the database 214.
- the time between two cuts can be lengthened so that a sufficiently long time is available for the subsequent process "group change" in the collecting station 204 based on this information allow safe extension from the collection tray.
- Another example is the utilization of the inserter.
- the time between two cuts must be lengthened, thereby reducing the group performance of the input channel and thus adjusting to the performance of the inserter.
- the information for this is in turn generated from a calculation of the cutting machine itself by reading data or information from the database are used, in particular the information group end or group start and from this the average number of groups is determined per time, which may not exceed the inserting power.
- the information can also come from a buffer for single sheets or a buffer for leaf groups where z. B. the degree of filling of the buffer influences the information for the tailor machine. Direct information from the inserter itself can also be used. Likewise, the information can also come from the gathering path 207.
- aspects have been described in the context of a device, it will be understood that these aspects also constitute a description of the corresponding method, so that a block or a component of a device is also to be understood as a corresponding method step or as a feature of a method step. Similarly, aspects described in connection with or as a method step also represent a description of a corresponding block or detail or feature of a corresponding device.
- embodiments of the invention may be implemented in hardware or in software.
- the implementation may be performed using a digital storage medium, such as a floppy disk, a DVD, a Blu-ray Disc, a CD, a ROM, a PROM, an EPROM, an EEPROM or FLASH memory, a hard disk, or other magnetic disk or optical memory are stored on the electronically readable control signals that can cooperate with a programmable computer system or cooperate such that the respective method is performed. Therefore, the digital storage medium can be computer readable.
- some embodiments according to the invention include a data carrier having electronically readable control signals capable of interacting with a programmable computer system such that one of the methods described herein is performed.
- embodiments of the present invention may be implemented as a computer program product having a program code, wherein the program code is operable to perform one of the methods when the computer program product runs on a computer.
- the program code can also be stored, for example, on a machine-readable carrier.
- inventions include the computer program for performing any of the methods described herein, wherein the computer program is stored on a machine-readable medium.
- an exemplary embodiment of the method according to the invention is thus a computer program which has program code for carrying out one of the methods described here when the computer program runs on a computer.
- a further embodiment of the inventive method is thus a data carrier (or a digital storage medium or a computer-readable medium) on which the computer program is recorded for carrying out one of the methods described herein.
- a further embodiment of the method according to the invention is thus a data stream or a sequence of signals, which represent the computer program for performing one of the methods described herein.
- the data stream or the sequence of signals may be configured, for example, to be transferred via a data communication connection, for example via the Internet.
- Another embodiment includes a processing device, such as a computer or a programmable logic device, that is configured or adapted to perform one of the methods described herein.
- a processing device such as a computer or a programmable logic device, that is configured or adapted to perform one of the methods described herein.
- Another embodiment includes a computer on which the computer program is installed to perform one of the methods described herein.
- a programmable logic device eg, a field programmable gate array, an FPGA
- a field programmable gate array may cooperate with a microprocessor to perform one of the methods described herein.
- the methods are performed by any hardware device. This may be a universal hardware such as a computer processor (CPU) or hardware specific to the process, such as an ASIC.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010043050 DE102010043050A1 (de) | 2010-10-28 | 2010-10-28 | Verfahren zum Steuern eines Schneiders und Papierhandhabungsanlage |
PCT/EP2011/069032 WO2012056016A1 (de) | 2010-10-28 | 2011-10-28 | Verfahren zum steuern eines schneiders und papierhandhabungsanlage |
Publications (2)
Publication Number | Publication Date |
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EP2632835A1 true EP2632835A1 (de) | 2013-09-04 |
EP2632835B1 EP2632835B1 (de) | 2015-12-16 |
Family
ID=44883271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP11776192.4A Revoked EP2632835B1 (de) | 2010-10-28 | 2011-10-28 | Verfahren zum steuern eines schneiders und papierhandhabungsanlage |
Country Status (4)
Country | Link |
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US (1) | US20130340584A1 (de) |
EP (1) | EP2632835B1 (de) |
DE (1) | DE102010043050A1 (de) |
WO (1) | WO2012056016A1 (de) |
Families Citing this family (2)
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US20140033886A1 (en) * | 2012-08-01 | 2014-02-06 | Xerox Corporation | Document Production System and Method With Automated Die Exchange |
US10589383B2 (en) * | 2015-05-27 | 2020-03-17 | Preco, Inc. | Cutting position adjustment for cutting head |
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US3956954A (en) | 1974-03-04 | 1976-05-18 | Honeywell Information Systems, Inc. | Rotary paper cutting device |
DE2749174A1 (de) | 1977-11-03 | 1979-05-10 | Hauni Werke Koerber & Co Kg | Anordnung zum steuern der rotierenden schneidwalze einer querschneidvorrichtung |
DE2749363A1 (de) | 1977-11-04 | 1979-05-10 | Hauni Werke Koerber & Co Kg | Anordnung zum steuern der rotierenden schneidwalze einer querschneidvorrichtung |
EP0058298A3 (de) | 1981-02-09 | 1984-08-29 | Lummus Crest S.à.r.l. | Kontrollvorrichtung für eine rotierende Schneidmaschine |
JPS57142836A (en) * | 1981-02-23 | 1982-09-03 | Sato Co Ltd | Cutter for price tag printer |
DE3834979A1 (de) | 1988-10-14 | 1990-04-19 | Boewe Informations Und Systemt | Vorrichtung zum schneiden einer endlosbahn |
DE4442411B4 (de) * | 1994-11-29 | 2007-05-03 | Heidelberger Druckmaschinen Ag | Verfahren zur formenden Bearbeitung von Papier in einer Druckmaschine |
SE509840C2 (sv) * | 1995-11-06 | 1999-03-15 | Straalfors Ab | Skäranordning för skärning av sammanhängande banor |
AU5843596A (en) | 1995-12-18 | 1997-07-14 | Patrick Wathieu | Paper cutter for variable format |
US6024683A (en) * | 1998-03-09 | 2000-02-15 | Wilkes; Kenneth R. | Apparatus and method for fabricating containers |
DE10011006A1 (de) | 2000-03-07 | 2001-09-27 | Boewe Systec Ag | Vorrichtung zum Schneiden von Papierbahnen |
JP2002205295A (ja) * | 2001-01-11 | 2002-07-23 | Fuji Photo Film Co Ltd | ウェブ切断装置及びウェブ切断方法 |
DE10135773C5 (de) * | 2001-07-23 | 2009-07-09 | Koenig & Bauer Aktiengesellschaft | Verfahren und Vorrichtung zum Steuern von Antrieben einer Druckmaschine |
DE10154003A1 (de) * | 2001-11-02 | 2003-05-15 | Heidelberger Druckmasch Ag | Vorrichtung und Verfahren zur Positionierung eines Querschnitts auf einem Bedruckstoff in Rollendruckmaschinen |
EP1394091A1 (de) | 2002-08-30 | 2004-03-03 | Hunkeler AG | Verfahren und Vorrichtung zur Speisung eines Druckers mit Einzelblättern |
JP3832440B2 (ja) * | 2003-02-27 | 2006-10-11 | 富士ゼロックス株式会社 | 用紙処理装置 |
US20040237739A1 (en) | 2003-05-27 | 2004-12-02 | Pitney Bowes Incorporated | System and method for providing sheets to an inserter system using a high speed cutter and right angle turn |
US20060156876A1 (en) * | 2005-01-19 | 2006-07-20 | Pitney Bowes Incorporated | Motion control system and method for a high speed inserter input |
DE102006042331A1 (de) | 2005-10-22 | 2007-05-03 | Neubauer, Kai, Dipl.-Ing. | Messerzylinder zum Trennen von Bahnmaterial |
DE102006058219A1 (de) * | 2006-12-05 | 2008-06-12 | Böwe Systec AG | Papierhandhabungsanlage und Verfahren zur automatischen Regelung der Verarbeitungsgeschwindigkeit derselben |
US7944167B2 (en) | 2008-06-25 | 2011-05-17 | Pitney Bowes Inc. | Method and apparatus for improving the position accuracy of a servo motor |
JP5002018B2 (ja) * | 2008-08-19 | 2012-08-15 | 日東電工株式会社 | 光学フィルムの搬送方法およびこれを用いた装置 |
DE102008054019A1 (de) * | 2008-10-30 | 2010-05-06 | Manroland Ag | Rollenrotationsdruckmaschine und Verfahren zum Einstellen des Schnittregisters davon |
-
2010
- 2010-10-28 DE DE201010043050 patent/DE102010043050A1/de not_active Withdrawn
-
2011
- 2011-10-28 EP EP11776192.4A patent/EP2632835B1/de not_active Revoked
- 2011-10-28 WO PCT/EP2011/069032 patent/WO2012056016A1/de active Application Filing
-
2013
- 2013-04-29 US US13/872,724 patent/US20130340584A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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Also Published As
Publication number | Publication date |
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DE102010043050A1 (de) | 2012-05-03 |
EP2632835B1 (de) | 2015-12-16 |
WO2012056016A1 (de) | 2012-05-03 |
US20130340584A1 (en) | 2013-12-26 |
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