EP4349610A2 - Changement dynamique d'utilité - Google Patents

Changement dynamique d'utilité Download PDF

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Publication number
EP4349610A2
EP4349610A2 EP23198682.9A EP23198682A EP4349610A2 EP 4349610 A2 EP4349610 A2 EP 4349610A2 EP 23198682 A EP23198682 A EP 23198682A EP 4349610 A2 EP4349610 A2 EP 4349610A2
Authority
EP
European Patent Office
Prior art keywords
fold
folding
folded
station
downstream
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.)
Pending
Application number
EP23198682.9A
Other languages
German (de)
English (en)
Other versions
EP4349610A3 (fr
Inventor
Christian Troxler
Heinz Oberholzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mueller Martini Holding AG
Original Assignee
Mueller Martini Holding AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mueller Martini Holding AG filed Critical Mueller Martini Holding AG
Publication of EP4349610A2 publication Critical patent/EP4349610A2/fr
Publication of EP4349610A3 publication Critical patent/EP4349610A3/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C19/00—Multi-step processes for making books
    • B42C19/04—Multi-step processes for making books starting with signatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C1/00—Collating or gathering sheets combined with processes for permanently attaching together sheets or signatures or for interposing inserts
    • B42C1/12—Machines for both collating or gathering and permanently attaching together the sheets or signatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C19/00—Multi-step processes for making books
    • B42C19/06—Multi-step processes for making books starting with webs not provided for elsewhere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C19/00—Multi-step processes for making books
    • B42C19/08—Conveying between operating stations in machines
    • 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
    • B65H2301/10—Selective handling processes
    • B65H2301/17—Selective folding mode
    • 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
    • B65H2301/446—Assisting moving, forwarding or guiding of material
    • B65H2301/4461—Assisting moving, forwarding or guiding of material by blowing air towards handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space

Definitions

  • Panel change also known as format change in technical terms, is the technical preliminary stage in a production plant when it comes to producing production type variability, type-specific assembly of printed products in continuous operation, and means that the number of panels on a paper web or printed medium is determined parallel or transverse to the running direction in such a way that the final purpose of ensuring a wide range of product type variability can be reliably achieved.
  • the width of the raw paper web that the customer can use will usually lead to a limitation, and the desired customer final formats are then determined by changing the number of blanks, cut-off length and final trim.
  • the fast and, if possible, waste-free blank change is of great importance, as this ensures the best possible use of the available printable paper web width and thus allows little final trimming.
  • the fast blank change thus enables, as the last building block for the operation of a digitally based system, the desired final formats to be processed efficiently without prior sorting of the job data.
  • the device has a compressed air device connected to a compressed air source and a control unit with at least one outlet opening for compressed air. This allows a compressed air blast from the compressed air device that conveys the printed sheet from a feed level between the folding rollers to be dosed easily and quickly according to the properties of a printed sheet that is currently to be folded, so that both good folding quality and high folding performance can be achieved across the entire spectrum of printed sheets to be folded. If a printed sheet does not meet the quality requirements, the compressed air blast can optionally be suppressed. This printed sheet is then not fed to the folding rollers, therefore not folded, and is discharged on a separate conveyor path.
  • the transport speed of a material that has been temporarily separated from the web or of a material that is Digital printing machines can reduce the size of individually printed sheets by folding them crosswise once or several times.
  • the gap between successive sheets created by cross-folding can be reduced.
  • the gap is also increased by rejecting faulty sheets.
  • This device therefore only allows the production of a product stream of folded printed sheets.
  • cross-folding facilitates gentle further processing of the printed sheets, but with the same number of folds it potentially leads to an undesirable, larger number of blank pages.
  • the number of blank pages in a printed product can be reduced by integrating unfolded printed sheets.
  • neither the known device nor the known method is able to integrate unfolded printed sheets into the product stream.
  • the use of unfolded printed sheets increases the cycle rate, which, depending on the processing devices used, results in a high transport speed and, in turn, can make gentle further processing more difficult and lead to quality problems.
  • EP2727869 A1 A further device and method for folding printed sheets with a compressed air device has become known, which is connected to a compressed air source and to a control unit, and has at least one outlet opening for compressed air directed towards the folding gap of the folding rollers.
  • the compressed air device has at least two segments, each of which has at least one cross-sectional area, each segment being connected to the compressed air source and the control unit, which is equipped with at least one control element that can be controlled separately with compressed air.
  • the segmentation of the compressed air device allows at least two areas of the device arranged next to and behind each other in the feed direction to be individually supplied with compressed air.
  • this device only allows the production of a product flow of folded printed sheets.
  • cross-folding facilitates gentle Further processing of the printed sheets, however, potentially leads to an undesirable, larger number of blank pages with the same number of folds.
  • the number of blank pages in a printed product can be reduced by integrating unfolded printed sheets.
  • neither the known device nor the known method is able to integrate unfolded printed sheets into the product flow.
  • the use of unfolded printed sheets increases the cycle rate, which, depending on the processing devices used, results in a high transport speed and in turn can make gentle further processing more difficult and lead to quality problems.
  • a device and a method for further processing a paper web printed sequentially by a digital printing machine have become known.
  • the printed paper web first passes through a perforating and cutting station.
  • the printed sheets separated there are each individually folded once or several times using cross and length folding devices. After folding, the printed sheets, which will later form a common partial book block, are brought together in a collating device like a scale before they are stacked to form a partial book block in an adjacent stacking device and glued.
  • the partial book blocks are then transported for further processing.
  • the folded printed sheets can also be merged with an unfolded printed sheet. However, this unfolded printed sheet must always be fed at the end of a printed product to be formed, i.e.
  • the buckle folding unit normally used requires a gap between a folded and an unfolded sheet to operate a mechanical flap that redirects a single sheet unfolded through the folding rollers instead of folding it into the buckle. Switching this flap takes a certain amount of time, i.e. a gap is created depending on the transport speed. Such a gap can be created, for example, by a stop and go operation. This gap is larger the higher the transport speed and the smaller the cut-off length of the sheet, and therefore the higher the cycle rate. The time required to switch the flap can be minimized, but not eliminated, by using the latest drive technology.
  • a printing sheet brake has become known, the method of which is for braking and positioning a printing sheet provided by a printing machine in a processing machine, wherein at least one means is present along the feed direction of the printing sheet, which exerts a braking force on the printing sheet, and thus brings about the positioning of the same in connection with a downstream processing station.
  • the further development of this subject matter of the invention consists in that a first means is operated in such a way that it causes a pneumatic force on the printing sheet, which is controlled by braking force-triggering pulses.
  • a second means intervenes, which brings about at least one braking force-generating friction force acting on the printing sheet, wherein intermittent, uniform or oscillating braking forces are generated on the printing sheet by the first and/or means, such that the braking forces are Control unit which is operated with changeable control profiles that can be activated on the basis of the queried operating parameters, whether they are stored or intervene.
  • a device and a method for further processing of consecutive, sequentially printed printed sheets emerges, with a conveyor, a folding table, a folding blade, a pair of folding rollers, at least one hold-down device and a machine control system operatively connected to the folding blade and the hold-down device.
  • the hold-down device has at least one mechanical braking element for the printed sheet in the area of the rear edge, which acts on the top of the printed sheet to be positioned on the folding table.
  • the fixed folding blade has a compressed air device connected to a first compressed air source with at least one outlet opening for compressed air directed towards the folding roller gap.
  • the folding table forms a collecting device for at least two consecutive printed sheets.
  • a sensor operatively connected to the machine control system is arranged for detecting the printed sheets transported by the conveyor.
  • the front edge of a subsequent printed sheet is fed in at a higher level than the rear edge of the printed sheet positioned on the folding table.
  • This can be achieved by means of a fixed or adjustable step in the lower belt by an active element or a ramp, which raises the front edge of the subsequent printed sheet relative to the rear edge of the printed sheet positioned on the folding table.
  • a device and a method for selectively cross-folding successive, sequentially printed printed sheets emerge.
  • a compressed air device of the device used has a first control element connected to the control unit for triggering or suppressing a burst of compressed air from the at least one outlet opening of the compressed air device. This allows a printed sheet to be fed either into the second transport path for folding or into the third transport path to bypass folding. The latter flows into the second transport path downstream of the folding rollers, incorporating a common second path point, with a fourth transport path connecting downstream of this path.
  • the third transport path is longer than the second transport path or, conversely, can be operated more slowly than the second transport path, such that a first sequence of the printed sheets following one another on the first transport path is the same as a second sequence of the printed sheets following one another on the fourth transport path.
  • digital printing machines can be used to further process sequentially printed sheets either cross-folded or unfolded, so that the production of a sheet consisting of a cross-folded first and unfolded second sheet existing printed product and thus a reduction in the number of blank pages in the finished printed product.
  • the unfolded second printed sheet can be inserted into the gap created by bypassing the cross-folding after the cross-folded first printed sheet and at a distance from it, while maintaining or restoring the original sequence.
  • the first control element can also be used to change the length of time for which a printed sheet provided in a folding position is subjected to compressed air. Since the printed sheets can be fed to the device almost without gaps, the transport speed can be kept constant or almost constant.
  • a method and a device for producing multi-sheet, folded printed products, in particular magazines and brochures, are produced.
  • a material web printed in a digital printing station this has at least three printed material web sections arranged next to one another in its longitudinal direction, such that when the material web is moved in a feed direction, a first material web strand is formed by at least one printed material web section.
  • This is brought together to form a second material web strand, which is formed by two printed material web sections, and is connected to the second material web strand by means of an adhesive along a connecting line running in the longitudinal direction of the material web.
  • Partial products are separated from the interconnected material web strands by cutting across the feed direction of the material web. These partial products consist of a first printed sheet separated from the first material web strand and a second printed sheet separated from the second material web strand and connected to the latter, which are then stacked to form a stack. The partial products are connected to one another during or after stacking and the partial products are folded individually or as a stack around a fold line. which runs between the adjacent printed sections of the second sheet.
  • the partial products When stacking, the partial products can be connected to one another in the area of the fold line using an adhesive. Although this operating system can minimize waste, limitations on the web speed must be taken into account. Furthermore, it can be used to change from 2-up to 3-up, but not to 4-up.
  • the invention should have a small footprint that is easy to operate and leads to low manufacturing costs for the printed products produced.
  • the system according to the invention should be used primarily in the so-called narrow web printing areas up to around 22.5" paper web width, since most printing machines are used in this area. However, this does not rule out the possibility of processing wider paper webs.
  • an interaction of specifically used technologies is used, which lead to a format-variable and production-type-specific production of printed products, starting from the underlying Signatures, signature packages, single sheets, folding schemes and folding types, which form the basis for the production of at least soft covers (SC) and their variants, hard covers (HC) and their variants, products from saddle stitches (SH) and thread stitches (FH) as well as the production of finished glued-fold brochures in a single system or print finishing machine.
  • SC soft covers
  • HC hard covers
  • FH thread stitches
  • the various manufacturing processes can be switched between each other practically seamlessly and without machine stops or idle cycles, which enables orders to be processed in line with postal routes and/or customer-specific requirements.
  • the printed products created in this way can also be fed downstream, inline and seamlessly to the further processing steps.
  • Such a combination of machines in a fully automated smart factory from the digital PDF to the finished end product proves to be particularly efficient and future-oriented.
  • the 1st (first) longitudinal fold is converted to the LAF1 (Length Air Fold 1).
  • the 2nd (second) longitudinal fold is used to produce a 3-fold or 4-fold use is newly converted into a 2nd (second) longitudinal fold LAF2 (Length Air Fold 2).
  • the continuous web is transferred to the cross cutter via a web tension controlled on the pull roller(s) in front of the cross cutter, either from an unwinding station (offline) or from a printing machine (inline).
  • the corresponding longitudinal perforations are also switched on automatically and with precise signatures according to the use, so that the continuous web can be perforated.
  • the paper web is then cut across the running direction with a predefined cut length.
  • the sheet parts created in this way are taken over by a sheet transport and then pulled up in active connection with a gap with a time constant (typically around 20ms), whereby this is only an example time value, as initially recorded in detail in the chapter "Description of the invention".
  • the gap of typically 20 ms fulfils two functions, namely, on the one hand, the reliable discharge of the curved parts at the switch at high cycle rates (> 40,000 T/h) and, on the other hand, to ensure the sustainable operation of the curved brake.
  • the sheet part is then guided further towards LAF1 and there either folded individually, as shown in detail in EP 2 727 869 A1
  • This Document forming an integral part of this application, or pre-collected and folded, as detailed in EP 3 533 609 A1
  • This document also forms an integral part of this application.
  • the folded individual signatures or pre-collected and folded signature packages are then guided towards the alignment section.
  • the alignment section fulfills additional functions or any combination thereof:
  • functions 1 and 2 can not only be operated individually, but they can also be carried out partially or entirely in combination with each other.
  • the system can be operated with or without a sheet brake and preferably includes an air sword for forming individual folded signatures or signature packages and for securing the subsequent removal and product transfer within the alignment section for the purpose of alignment for the 2nd longitudinal fold in the 2nd longitudinal folding element with a format-variable sheet stop and folding rollers, whereby the sheet stop is arranged parallel to the air folding element.
  • the system is operated with sheet guides and air sword for the purpose of forming the second longitudinal fold within signatures or signature packages with a precise alignment for auxiliary gluing in the downstream gathering unit.
  • At least two longitudinal folding elements with air sword technology are combined with at least three longitudinal perforations, whereby the longitudinal perforation, or the fold moistening nozzle or creasing wheel devices, are provided with a higher-level control system and data management and barcode comparison, and are switched on with precise signatures in accordance with the selected folding pattern.
  • the arrangement of the aforementioned longitudinal perforation with left for Z-fold and right for W-fold depends on how the 2nd longitudinal fold is formed.
  • the inlet position of the first longitudinal fold is set accordingly across the paper web to the corresponding perforation (or weakening of the paper caused by the folding position).
  • the sheet parts are then brought to the folding table via the waterfall in the 1st (first) longitudinal fold (LAF 1) and braked precisely at the sheet stop using a sheet brake. This is done either based on the higher-level data management system or on the basis of specifically arranged barcodes, whereby the sheet parts are then folded individually or first collected and then together.
  • the individual signature or the signature package is then folded on the alignment line across the paper feed direction onto a fixed edge parallel to the Transport direction and then, depending on the folding pattern, in the 2nd (second) longitudinal folder, redirected by the folding rollers (2-fold use) or folded again (3-fold and 4-fold use).
  • the folding process in the 2nd (second) longitudinal fold is characterized by the signatures/signature packages hitting the sheet stop parallel to the air folder and at the same time the individual signatures/signature packages are pressed towards the folding rollers by the folding air impulse, thereby forming the 2nd longitudinal fold.
  • signatures for normal perfect binding can be changed to products from thread stitching (FH) or saddle stitching production (closed signature) while the machine is running at full speed.
  • FH thread stitching
  • closed signature closed signature
  • pre-collecting function in the longitudinal fold LAF1 is of central importance, as it can increase the output of the downstream processes for thread stitching and saddle stitching by several factors. Otherwise, the individual signatures would either have to be collected in an intermediate step or operate at a performance-producing cycle rate, which would lead to a limited application process of the units With perfect binding, pre-collecting is primarily used to ensure quality assurance.
  • variable-thickness folding rollers are provided, preferably rubber rollers formed by teardrop-shaped exceptions, these are initially able to ensure thickness compensation of at least 2 layers of paper without adjusting the rotation axes. If there are larger jumps in thickness, precautions are taken to be able to adjust the folding rollers mechanically accordingly.
  • an addition to the underlying recipe-based control can be introduced in such a way that these control profiles can be calculated and implemented independently on the basis of the basic information, such as folding pattern, paper type, thickness.
  • the solution for the quick and practically seamless switching from 2-, 3-, 4-fold use due to the format-limiting signature widths with a paper web of around 22.5" wide can of course be extended to 5- to 8-fold use.
  • the paper web is not restricted to the preferably used 22.5" width, but wider or narrower paper webs can therefore be processed, which are introduced, for example, by connecting a former, plow fold or a partial web feed, and which are then brought together before the cross cutter.
  • an 8-fold panel is processed in the same way as a 4-fold panel, whereby the fed web is then double-layered.
  • the downstream process remains identical.
  • One advantage of this solution is that with the widening of the Paper webs, e.g. doubled, the page output / cycle is also doubled.
  • the advantageous solutions according to the invention and the claims are not limited in this respect, as is the case with existing solutions in which a double-layered paper web would not work due to the folding principle and the holding down of one half by, for example, vacuum belts in combination with guide plates.
  • the corresponding systems and their mode of operation are known to the expert. The expert is familiar with the functioning of this system, which is why further explanations are unnecessary.
  • This described production type variability which serves to produce type-specific or type-similar print products, is implemented in the present case by operating another downstream print processing system or machine, whereby the introduction and passage of the previously created print products into and through the system normally takes place on a job-dependent basis; nevertheless, production can also be maintained in single or mixed operation, whereby truncations of a given flow by introducing other type-specific print products, up to and including continuous intermittent production of individual print products (book-of-one), can be accomplished at any time.
  • the production of a seventh type-specific print product is one from a saddle stitcher which has print product-related processing stations which are supplemented with at least one barcode reader system which is able to capture the individual print product-related signatures provided with a barcode, to individually design their processing in the saddle stitcher and to carry out the final assembly in relation to the cover sheet to be attached.
  • the attachment of the endpaper, binding strip and cover sheet is carried out for type-specific printed products 1 to 6, with associated design variants, by gluing operations, which depend on the type of books or book blocks in question.
  • gluing operations which depend on the type of books or book blocks in question.
  • all conventional and specified methods are used to form packages.
  • the barcode reader system records the processing sequences of the system used to carry out the use of the system as well as those devices or units of the further processing system in which the book block differentiation for the type-specific assembly of the finished products is recorded; thus, it is initially about the continuous recording and differentiation of the signatures or signature packages within the preceding formation of 2-, 3-, and 4-fold use, which recording the subsequent dynamic cutting to prepare the single sheet formation or the prepared book blocks. Accordingly, this barcode reader system is already actively active in an automatic book block feed unit arranged upstream of the print processing machine, the book block is then fed into the endsheet feeder and then into an adhesive binder or saddle stitcher, in which the monitoring, control and regulation of the type-specific products or semi-products takes place.
  • the barcode reader system also extends its services to the dimensional finishing of the products in a downstream edge cutting unit, which is preferably designed as a three-knife trimmer, meaning that such a barcode reader system is easily able to comprehensively control and regulate the highly individualized production of printed products within this section.
  • a similar barcode reader system is also used for the preceding formation of 2-, 3- and 4-fold use signatures or signature packages, which functions according to the same principles.
  • the barcode readers or the systems communicate with each other, i.e. there is a uniform or adapted control/regulation doctrine, with the systems optionally being designed for interconnectivity.
  • the barcode reader systems mentioned operate according to the following principles: i) at least one recognition of the recorded barcode is guaranteed in the printed products; ii) the data in the barcodes is encrypted or coded; iii) the barcode reader systems are permanently on standby during the processing sequences: specifically, this means that endsheet feeders and perfect binders are continuously controlled and regulated so that softcovers or hardcovers or other types of printed products can be processed individually and without delay.
  • all barcode reader systems can be extended and/or replaced and/or combined with simple tags, or with an RFID system, or with the integration of a workflow system.
  • All barcode reader systems in the entire system are connected to a higher-level system control system, which controls the system for operating 2-, 3- and 4-fold panels for producing signatures and signature packages and the downstream print finishing machines with the associated processing stations.
  • This higher-level system control system also initiates the conversion of the processing stations involved as soon as the dimensions, such as the thickness and/or format of the book blocks, show major deviations from the dimensions of the basic setting.
  • this higher-level control system works across the board with stored control profiles, or with production-dependent control interventions, or with predictive control systems, whereby redundant safeguards ensure that the operation of the entire system is highly stable.
  • This particularly focused super-compact perfect binder machine has the advantage that it has a book block transport system with a closed guide track, on which three higher-level transport clamps operate, each of which is attached to the machine frame of this perfect binder by means of a guide arrangement, and the book blocks are transported along the guide track belonging to the processing stations, which essentially consist of a block insertion station, a spine processing station, a glue application station, a glue application control station, a drying station, at least one folding and folding pressing station, and at least one cover sheet station.
  • This perfect binder is further equipped with a clamp opening system which consists of at least one clamp-internal element and at least one clamp-external element, whereby both elements are operatively connected to one another, through which an opening of the clamp jaws belonging to the binder clamp can be created, whereby at a loading location of the book block, the clamp-external element can be created by a barcode reader command, a motor-assisted pressure operation on the movable clamp-internal element, such that this initiates a targeted opening of the clamp jaws belonging to the binder clamp depending on the thickness of the book block to be picked up, whereby this pressure operation simultaneously builds up a preferably spring-like recoil force, which is then available as an effective pressure force on the picked up book block.
  • a clamp opening system which consists of at least one clamp-internal element and at least one clamp-external element, whereby both elements are operatively connected to one another, through which an opening of the clamp jaws belonging to the binder clamp can be created, whereby
  • a typical width of a fed paper web of 22.5" (approx. 572 mm) is evident, which is used as a basis for the preparation of differently designed blanks, whereby it cannot be ruled out that with wider paper webs the processing of more extensively equipped benefits is carried out.
  • Essential in the process according to Figure 1 is the provision that the paper web 110 maintains the specified path.
  • a symmetrical web width 110a in the sense of a 2-fold use 150 can be achieved by a central folding operation using a folding device 100.
  • the folding device 110 which was originally positioned in the middle, is moved a distance s (item 120a) of 95 mm to the right from the middle to a new position 110a, whereby s corresponds to the adjustment path of the folding device.
  • This adjustment creates a section with a length of 381 mm on the left side (item 120).
  • Figure 2 referred to.
  • s s
  • item 140 shows how the locations Z-fold 100a and W-fold 100b behave in relation to the paper web width 110, insofar as this is divided into 1/3 each, whereby the respective folding process takes place through an equivalent edge-related distance.
  • Figure 2 shows the schematic run 200 during the production of a Z-fold 210, the final fold width of which is 190 mm (see item 220).
  • Figure 1 Basically, the process corresponds to the procedures according to Figure 8 , i.e., a first folding operation is carried out in a first folding device 230 (here acting vertically from above), in which a first-generated folding geometry 240 is provided with initially different length sections, which folding geometry 240 then has the prerequisite for the later formation of a Z-fold, the transport position of this first-generated folding geometry 240 being determined by position 241 of the Figure 2
  • This first created folding geometry is then transferred to a downstream folding device 250 (here acting vertically from below), in which the final folding is carried out to form a geometrically so-called Z-fold 210.
  • the further conveyance of the Z-fold 210 following the folding process can take place upwards 251 or downwards 252. It is also possible to provide a horizontal continuous forwarding 253 from the folding device 250. In such a case, the stop 254 (see Figure 8 , item 841) must be designed so that it is free of obstructions in the transport direction. If the transport paths for the first folding device 230 (passage 231) and for the second folding device 250 (passage 255) are each operated independently, their cycle conformity during transport of the folding geometry is ensured by a compensation 260.
  • Figure 3 shows another schematic run 300 in the production of a W-fold 310 as a 3-fold, the fold width of which is ultimately 190 mm (see item 320).
  • Figure 1 Basically, the process corresponds to the procedures according to Figure 8 , i.e., a first folding operation is carried out in a first folding device 330 (here acting vertically from above), in which a first-generated folding geometry 340 with initially different length sections is provided, which folding geometry 340 has the prerequisite for the later formation of a geometrically so-called W-fold, wherein the transport position of this first-generated folding geometry 340 from Pos.
  • This first created folding geometry is then transferred to a downstream folding device 350 (here acting vertically from below), in which the final folding to a W-fold 310 takes place.
  • the further conveyance of the W-fold 310 following the folding process can take place upwards 351 or downwards 352. It is also possible to provide a horizontal continuous forwarding 353 from the folding device 350. In such a case, the stop 354 (see Figure 8 , item 841) must be laid out so that there are no obstacles.
  • Figure 4 shows the folding process for a 2-fold use, whereby the folding device 100 essentially has the same design as Figure 1
  • the folding resulting from this process is shown in figure 450.
  • the folding process is explained in Figure 4a and to the statements in EP 3 597 430 A1 , wherein Figure 1 the integration of the folding process in connection with an optional cross-folding of printed sheets is shown and described in more detail.
  • Cross-folding can be implemented as an alternative to longitudinal folding as part of the process, whereby the two types can easily be used not only alternatively but also in combination with each other, depending on the configuration and constellation of the uses and processes, which is also to be understood as being essential to the invention.
  • Figure 4a shows an embodiment of a device 402 for the cross-folding of printed products, in which there are printed sheets 401 each having at least two printed pages.
  • the folding device 402 has a guide plane 403, in which the printed sheet 401 is fed and from which the printed sheet 401 is forwarded for folding.
  • the guide level 403 shown here running horizontally can of course also be arranged vertically or at any angle in space, which allows a variety of structural options depending on the specific conditions of use.
  • only a single printed sheet 401 is described and only a single one is shown in the figure, in operation it is actually either a single printed sheet 401 or several printed sheets 401 lying one on top of the other.
  • the rotation axes 406 of the folding rollers 405 are aligned both parallel to each other and parallel to the guide plane 403.
  • a second side 409 of the guide plane 403 opposite the first side 404 of the guide plane 403, which in the Figure 4a shown first embodiment above the guide plane 3 has a compressed air device 410 in the region of the folding gap 407.
  • the compressed air device 410 has at least one, but preferably several outlet openings 411 for compressed air 412 directed towards the folding gap 407, wherein this compressed air device 410 is connected to a compressed air source 414 via a compressed air line 413, and this in turn is operatively connected to a control unit 416 of the device 402 via a control line 415.
  • the compressed air device 410 has a first control element 417, designed for example as a solenoid valve, which serves to change the duration of the application, and which is provided with at least one outlet opening 411 for compressed air 412, wherein a second control element 418, designed here for example as a slide, serves to change a cross-sectional area 419 of this outlet opening 411, at the same time also for example as a pressure reducing valve.
  • a third control element 420 is arranged in the compressed air line 413 and serves to change a pressure of the compressed air 412 that can be fed to this outlet opening 411.
  • the control elements 417, 418, 420 are each connected to the control unit 416 via a control line 415.
  • a first guide element 421 is arranged in the guide plane 403 of the device 402 for the printed sheet 401 resting thereon during provision and is provided with a recess 422 formed in the region of the folding gap 407 for the printed sheet 401 for the compressed air 412 expelled from the outlet openings 411 in the form of a compressed air blast 412' (412").
  • a second guide element 423 is provided for the printed sheet 401, which is arranged between the first guide element 421 and the compressed air device 410 and optionally interacts with the first guide element 421.
  • a guide table can be used as the first guide element 421.
  • several narrow guide elements can be provided which are spaced apart from one another, ie can be arranged next to and/or behind one another.
  • the first guide element 421 can be extended in the area of its recess 422 from the guide plane 403 to close to the area of the folding rollers 405 in order to ensure better guidance of the printed sheet 401 to the folding rollers 405.
  • a fixed element, such as a guide plate, can also be used as the second guide element 423.
  • the second guide element 423 extends right into the area of the outlet openings 411 of the compressed air device 410, so that it is also advantageous to be able to guide the two trailing ends of the printed sheet 401 conveyed into the folding gap 407 between the folding rollers 405 in a defined manner by the second guide element 423.
  • the second guide element 423 can also have several narrow individual elements that are arranged at a distance from one another, next to one another and/or one behind the other.
  • the first and second guide elements 421, 423 can be arranged horizontally, vertically or at any angle in space, depending on the specific conditions of use.
  • the folding device 402 has a transport unit 424, consisting of an upper conveyor belt 25 and two circulating lower conveyor belts 425', 425", with which the printed sheets 401 can be provided in a first feed direction 426 running essentially at right angles to the rotation axes 406 of the folding rollers 405.
  • This feed direction 426 of the printed sheet 401 is in Figure 4a horizontally or quasi-horizontally with respect to the plane of action of the folding rollers 405, whereby this feed direction of the printed sheet can also be perpendicular or quasi-perpendicular or via another plane in space with respect to the plane of action of the folding rollers 405.
  • the folding device 402 used here can be used as desired for cross-folding printed sheets 401, regardless of the type and feed plane of the printed sheet 401.
  • Figure 5 shows a sequential folding process for a 4-fold sheet, consisting of a first folding process 510 and a second folding process 520, which are Figure 5 fold the first sheet part 511 and the second sheet part 521 symmetrically and subsequently in terms of width.
  • the result of this sequential folding process is a multiple folded product 530 that is a quarter of the original width 511, whereby the quarter of the sheet length can also deviate accordingly when it comes to creating a pre- or post-fold for, typically, SH or FH in the corresponding further processing machines, namely for the opening process of the signatures.
  • the individual process steps described here can therefore be carried out in any order, as already explained above, and they can also be carried out without additional gaps before the folding, diverting or ejection process. Since the time intervals required for the individual functions are worked with an air pulse in the range of ⁇ 40 ms, preferably ⁇ 10 ms, there are no dependencies on speeds and cycle performance compared to switching in relation to the individual functions. The same considerations also apply if the folding processes are carried out by mechanically controlled means.
  • FIG. 6 illustrates the process chain 600 when providing signatures starting from a funnel 610 up to and including longitudinal fold 1, i.e. LAF1 650.
  • the indicated funnel 610 is to be understood here only as an option, especially if the paper web widths should be >22.5".
  • Both the optional feeding of the paper web widths from the funnel 610 and the regular feeding via the endless web 620 are transferred via conveyor rollers 621 and deflection rollers 622 to a new working level 623, which forms the processing level per se.
  • the conveyor rollers 621 act as pulling rollers, via which a tension force is exerted on the paper web width, such that the subsequent cross cutter 630 operates with a gap 638 of approx.
  • the sheet parts 631 thus formed are first taken over by a first sheet transport device 633 and transported along a first transport path 634, which sheet parts are then transferred to a second identical transport path in which a second sheet transport device 636 takes over the further transport of the sheet parts 631. Between the transport paths 634 and 635, the safe transfer of sheet parts of variable format also takes place.
  • an ejection opening 637 is arranged, which ensures the long-term quality assurance of the forwarded sheet parts 631.
  • the size of this discharge opening 637 corresponds to a transport time constant of approximately 20 ms, whereupon the intact sheet parts can be transferred to the following transport path 635, which in turn are transported further by the second sheet transport device 636 and then fed to a downstream sheet braking device 640.
  • the operation of the sheet braking device 640 for braking and positioning the provided sheet part 631 takes place, for example, on the basis of a braking force exerted by a means which generally brings about the positioning of this sheet part 631.
  • the development of this sheet braking device 640 consists in that a first means is operated in such a way that it exerts a pneumatic force on the sheet part 631 which is controlled by braking force-triggering pulses of different strengths and intervals.
  • a second means intervenes which brings about at least one braking force-generating friction force acting on the sheet part 631, wherein intermittent, uniform or oscillating braking forces are generated on the sheet part 631 by the first and/or second means in such a way that the resulting braking forces are guided by a control unit which is guided with variable control profiles which can be activated on the basis of the queried operating parameters, whether they are stored or intervene.
  • the advantages of this sheet braking device 640 can be summarised as follows: Compared to conventional solutions, there are no longer any particularly complex kinematically guided mechanisms in the foreground, meaning that even at high cycle rates there is no longer any need to fear deficits due to force conversion and signs of wear.
  • Tried and tested elements can be used whose operation is based specifically on air impulses, meaning that no special settings are required for the paper thickness, so that accordingly, operational stability can be achieved.
  • the precise positional braking can always be achieved with pinpoint accuracy, particularly with the two means described.
  • the operational value of the sheet braking device 640 on which this is based lies in the fact that it can be implemented in systems in many ways as a complementary measure, regardless of the method used to carry out the various production type changes.
  • Figure 7 as a front view of Figure 6 (see arrow VII in Fig.6 ) shows a process in 2-up operation, in which the signature or signature packages are folded in the folding device 710 in the LAF1 area 720 and transported further 711. Downstream of the last deflection roller 712 extends a conveying section 730, in which the folded material is aligned in accordance with the processing before it is subjected to a mere deflection 741 along the following section 740, LAF2 area, i.e. no further folding takes place. Downstream of another deflection roller 742 extends the gathering section 750, in which the sheet parts 760 are prepared and stacked accordingly for further processing (see also Figure 6 ).
  • Figure 8 as another front view of Figure 6 (see arrow VII in Fig.6 ) shows an extended process in 3- or 4-fold operation, in which the signature or signature packages are folded in the LAF2 by an additional folding device 840.
  • First, the signature or signature packages are processed in the LAF1 area by a first folding device 810 and then transported further 811. Downstream of the last deflection roller 812 there is a conveyor line 830 in which the folded material is aligned in accordance with the processing before the next folding device 840 is used in the LAF2.
  • This folding device is provided with a stop 841 which acts as a transport stop for the signatures, but which also ensures that the folding takes place here according to symmetrical principles. Downstream of another deflection roller 842 there is the so-called gathering line 850 in which the sheet parts 860 are prepared and stacked accordingly for further processing (see also Figure 6 ).
  • the number of longitudinal folds is not limited to two, but can be increased at any time.
  • the focus mentioned at the beginning on paper webs with a maximum width of 22.5" (see Figure 1 ), which allows an advantageous number of two longitudinal folds to be implemented, with a maximum width of the signature blocks of 143 mm in 4-fold use (22.5"/4).
  • FIG 9 a new generation perfect binder 990 is shown, which was basically and initially designed for the production of softcover and hardcover books. According to the invention, modified versions of these two basic books can also be produced, as will be explained in more detail below.
  • Raw printed products from a thread-stitching machine can also be fed into such a perfect binder 990 and assembled according to various finishing criteria. With such thread-stitched printed products, it is only necessary to ensure in terms of control technology that they can be transported neutrally through the spine milling machine 906.
  • the continuous or reciprocal processing of different versions, up to a single book block, can be sustainably maintained by equipping the perfect binder 990 with a barcode reader system at suitable points and the book blocks, depending on the version, being provided with corresponding individual barcodes.
  • the information recorded from this is processed in a central control unit for the immediate product-related and continuous operation of the perfect binder.
  • a perfect binder 990 is shown in a top view, whereby printed products from a thread sewing machine can also be fed into this perfect binder.
  • This perfect binder 990 has a book block transport system 902 with a closed guide track 903, on which three transport clamps are arranged one below the other, each of which is guided by a guide arrangement through a machine frame of the perfect binder 990 and arranged along the guide track 903.
  • processing stations in general are a block insertion station 905, a spine processing station (spine milling machine) 906, a glue application station and a glue application control 907, a folding station 991 with folding strips 908 consisting of a cover and/or folding pressing station, a cover sheet feeder 992 with cover sheets 909, a delivery station 910 and a drying station 915.
  • this perfect binder 990 has three drives 941, 942, 943 (not shown in detail), with a first drive 941 being assigned to a first transport clamp 911, a second drive 942 to a second transport clamp 912 and a third drive 943 to a third transport clamp 913.
  • the drives 941, 942, 943 each have a drive chain 921, 922, 923, which is also arranged one below the other and to which the associated transport clamp 911, 912, 913 is attached and which is driven by a drive motor 931, 932, 933 via a chain wheel 904 in the running direction 901.
  • the drive motors 931, 932, 933 are controlled by a machine control of the perfect binder 990 (not shown in detail but familiar to the expert).
  • a book block transport system 902 can also be used which is equipped with just two or with more than three transport clamps 911, 912, 913 and with a corresponding number of drive devices.
  • This perfect binder 990 has a number of holding positions 951, 952, 953 in which a transport clamp 911, 912, 913 can be brought to a standstill by the drive 941, 942, 943 assigned to it.
  • a first holding position 951 is for the insertion of loose book blocks or books or Printed products
  • a second holding position 952 for pressing a cover sheet (not shown) onto a book block 900
  • a third holding position 953 for ejecting bound book blocks 900 are shown.
  • a processing station 908 designed as a folding station 991 for applying a folding strip, a further holding position is provided in its area.
  • the perfect binder 990 can also be expanded with a device (not shown in detail) which is used to change the placement of the book blocks 900 and thus to change their distance relative to the fixed processing stations 905 in general.
  • the production of another type-specific print product involves one from a saddle stitcher which has print product-related processing stations and at least one barcode reader system which is able to record the individual print product-related signatures provided with a barcode, to individually design their processing in the saddle stitcher and to carry out the final assembly in relation to the cover sheet to be attached.
  • the attachment of the endpaper, binding strip and cover sheet is carried out at least for type-specific printed products 1 to 6, with associated design variants, by gluing operations, which depend on the type of book or book block in question.
  • gluing operations which depend on the type of book or book block in question.
  • all conventional and specified types of finishing are used for products from a saddle stitcher.
  • the barcode reader system records the system related to the use of the sheet as well as those devices or units of the further processing system in which the difference between the book blocks is recorded for the type-specific assembly of the finished products; thus, it is initially about the continuous recording and differentiation of the signatures or signature packages within the preceding formation of 2-, 3- and 4-fold use, to ensure the provision of the single sheet formation or the book blocks through subsequent dynamic cutting.
  • this barcode reader system is already active in a book block feed unit arranged upstream of the print processing machine; the book block is then fed into the endsheet feeder and then into an adhesive binder or saddle stitcher, in which the monitoring, control and regulation of the type-specific products or semi-specific products takes place.
  • the barcode reader system extends its services even further to the dimensional finishing of the products in a downstream edge cutting machine, which is preferably a three-knife trimmer from the applicant's company, which is sold under the name "InfiniTrim", whereby these printed products can be continuously cut to the correct dimensions, regardless of their specified thicknesses and format sizes.
  • a downstream edge cutting machine which is preferably a three-knife trimmer from the applicant's company, which is sold under the name "InfiniTrim"

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Handling Of Sheets (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Discharge By Other Means (AREA)
EP23198682.9A 2022-09-21 2023-09-21 Changement dynamique d'utilité Pending EP4349610A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022124182.3A DE102022124182A1 (de) 2022-09-21 2022-09-21 Dynamischer Nutzenwechsel

Publications (2)

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EP4349610A2 true EP4349610A2 (fr) 2024-04-10
EP4349610A3 EP4349610A3 (fr) 2024-04-24

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Country Link
US (1) US20240092110A1 (fr)
EP (1) EP4349610A3 (fr)
JP (1) JP2024045043A (fr)
CN (1) CN117735322A (fr)
DE (1) DE102022124182A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2145773A1 (fr) 2008-07-17 2010-01-20 Hunkeler AG Procédé et dispositif de fabrication de produits d'impression sur plusieurs feuilles et pliés, en particulier magazines et brochures
EP2727869A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2727868A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2818331A2 (fr) 2013-06-24 2014-12-31 TECNAU S.r.l. Procédé et système pour la production de livres par impression numérique à partir d'une bande de papier continue et livre correspondant
EP3002240A1 (fr) 2014-10-01 2016-04-06 Müller Martini Holding AG Dispositif d'arret de feuille d'impression
EP3285978B1 (fr) 2015-04-21 2019-03-06 Müller Martini Holding AG Dispositif pour effectuer des operations de coupe de bords de format ouvert d'un produit d'impression
EP3482892A2 (fr) 2017-11-08 2019-05-15 Müller Martini Holding AG Dispositif pour l'exécution d'opérations de coupe de bords de format ouverts d'un produit imprimé
EP3406456B1 (fr) 2017-05-24 2019-08-21 Müller Martini Holding AG Encolleuse
EP3533609A1 (fr) 2018-02-28 2019-09-04 Müller Martini Holding AG Dispositif et procédé de traitement ultérieur séquentiel de feuilles imprimées
EP3597430A1 (fr) 2018-07-17 2020-01-22 Müller Martini Holding AG Dispositif et procédé pour le pliage transversal sélective de feuilles imprimées en séquence

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29716987U1 (de) 1996-09-23 1997-11-13 Planatol Klebetechnik GmbH, 83101 Rohrdorf Auftragevorrichtung für Klebstoff und/oder Falzbefeuchtungsmittel an Rotationsdruckmaschinen
DE102008033184B4 (de) * 2008-07-15 2018-02-15 Dgr-Graphic Gmbh Verfahren zur Herstellung von klebegebundenen Druckerzeugnissen und Klebebinder
DE102014222319B4 (de) 2014-10-31 2021-04-29 Koenig & Bauer Ag Produktionslinie mit einer Druckmaschine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2145773A1 (fr) 2008-07-17 2010-01-20 Hunkeler AG Procédé et dispositif de fabrication de produits d'impression sur plusieurs feuilles et pliés, en particulier magazines et brochures
EP2727869A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2727868A1 (fr) 2012-10-30 2014-05-07 Müller Martini Holding AG Dispositif et procédé destinés à plier des feuilles imprimées
EP2818331A2 (fr) 2013-06-24 2014-12-31 TECNAU S.r.l. Procédé et système pour la production de livres par impression numérique à partir d'une bande de papier continue et livre correspondant
EP3002240A1 (fr) 2014-10-01 2016-04-06 Müller Martini Holding AG Dispositif d'arret de feuille d'impression
EP3285978B1 (fr) 2015-04-21 2019-03-06 Müller Martini Holding AG Dispositif pour effectuer des operations de coupe de bords de format ouvert d'un produit d'impression
EP3406456B1 (fr) 2017-05-24 2019-08-21 Müller Martini Holding AG Encolleuse
EP3482892A2 (fr) 2017-11-08 2019-05-15 Müller Martini Holding AG Dispositif pour l'exécution d'opérations de coupe de bords de format ouverts d'un produit imprimé
EP3533609A1 (fr) 2018-02-28 2019-09-04 Müller Martini Holding AG Dispositif et procédé de traitement ultérieur séquentiel de feuilles imprimées
EP3597430A1 (fr) 2018-07-17 2020-01-22 Müller Martini Holding AG Dispositif et procédé pour le pliage transversal sélective de feuilles imprimées en séquence

Also Published As

Publication number Publication date
CN117735322A (zh) 2024-03-22
US20240092110A1 (en) 2024-03-21
DE102022124182A1 (de) 2024-03-21
JP2024045043A (ja) 2024-04-02
EP4349610A3 (fr) 2024-04-24

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