JP2010241521A - Web special folding device, rotary press, and web special folding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a web special folding device achieving a special folding of webs by a simple construction; a rotary press; and a web special folding method. <P>SOLUTION: The special folding device 16 for the webs W incorporated into the rotary press 1 including a web passing device 14 which overlaps a plurality of traveling webs W, and conveys the overlapped webs W toward downstream in the travel direction; and a triangular plate 34 which is disposed on a part of the web passing device 14 located downstream in the travel direction, and which folds these overlapped webs W in the travel direction. The special folding device includes a second slitter 40 for cutting at least one web W among these overlapped webs W in the travel direction; and a gluing device 41 for performing gluing between a cut web W cut by the second slitter 40, and an uncut web W overlapped with the cut web W, in the travel direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a web special folding device incorporated in a rotary printing machine capable of printing on a traveling web and cutting the printed web to create a fold, a rotary printing machine including the web folding machine, and a web special folding It is about the method.

  2. Description of the Related Art Conventionally, in a rotary printing press, it is possible to create a signature such as a newspaper by superimposing and folding a plurality of printed webs. Normally, a signature of a newspaper or the like has a width of two pages, but for example, the newspaper manufacturing apparatus shown in Patent Document 1 is configured to be able to create a signature having a width of four pages. Yes.

  Specifically, a conventional newspaper manufacturing apparatus incorporates a paper folding device that folds a 4-page wide web, and the paper folding device folds the outer quarter of the 4-page wide web inward. A folded paper surface having a width of 2 pages is formed. The folded paper surface having a width of two pages is folded in half vertically at the center of the folded paper surface by a triangular plate disposed on the downstream side.

  Further, as a method for creating such a folded paper surface, for example, a booklet-like printed material manufacturing method disclosed in Patent Document 2 is known. Specifically, this manufacturing method includes a step of printing on each web by two rotary printing presses, a step of applying an adhesive to one printed web, and a web applied with the adhesive. A step of superimposing and bonding the other web, a step of forming a cut in the flow direction at the center in the width direction of the bonded one web, and a step of folding the two bonded webs along the cut line. ing. According to this manufacturing method, it is possible to create a booklet-like printed material that can be opened largely by double-spreading.

  Furthermore, as an apparatus for creating the above folded paper surface, for example, a rotary printing machine shown in Patent Document 3 is known. Specifically, this rotary printing press is provided with two parallel formers (triangular plates), and the rotary printing press folds two webs folded by each triangular plate by gluing them at the edges. Processed signatures can be created.

Japanese Patent No. 3383239 Japanese Patent No. 3656847 Japanese Utility Model Publication No. 56-94374

  However, in the newspaper production apparatus shown in Patent Document 1, the paper folding device must be disposed in the web path section, and the load applied to the web path section is increased. Thereby, when the rigid body of a web path part is insufficient, since it is necessary to raise the rigid body of a web path part, it is thought that the remodeling cost of the paper surface folding apparatus in a web path part increases. Moreover, since the dimension in the height direction or depth direction of a newspaper production apparatus will become long because the paper folding device is incorporated in the newspaper production apparatus, it is necessary to increase the height or depth of the building in which the newspaper production apparatus is installed. .

  In addition, according to the method for manufacturing a booklet-like printed material shown in Patent Document 2, a structure is formed in which a cut is formed on one web after the two webs are overlapped. There is a risk of cutting two sheets at the same time. Furthermore, in order to create a booklet-like printed matter, two rotary printing machines must be used, which increases the device cost. Note that Patent Document 2 does not disclose a configuration for forming a cut in one of the two webs that are overlapped and bonded, and an apparatus configuration for overlapping the two webs. No device configuration for applying the adhesive is disclosed.

  Furthermore, according to the rotary printing press shown in Patent Document 3, two folded webs must be joined using two triangular plates, and the rotary printing press has a complicated device configuration, and the rotary printing press. It is considered that the cost of the apparatus increases.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a web special folding device, a rotary printing press, and a web special folding method capable of specially folding a web with a simple configuration.

  The web special folding device according to the present invention is provided on the downstream side in the traveling direction of the web transport device, and the web transport device that can superimpose the traveling webs and transport the overlapped webs downstream in the traveling direction. A web special folding apparatus incorporated in a rotary printing press provided with a triangular plate for folding a plurality of overlapped webs in a running direction, and at least one of the plurality of overlapped webs A slitter that can be cut in the running direction, a cut web that has been cut by the slitter, and an uncut web that is superimposed on the cut web, and a gluing means that can be glued in the running direction. It is characterized by that.

  According to this configuration, the web is cut by a slitter, glued, the cut web and the uncut web are overlapped, and then the cut web and the uncut web overlapped by the triangular plate are folded, The web can be specially folded. As a result, the web can be specially folded by newly adding the configuration of the slitter and the gluing means to the triangular plate provided in the conventional rotary printing press. A simple configuration can be obtained.

  In this case, it is preferable that the slitter and the gluing means are disposed on the upstream side in the traveling direction of the triangular plate.

  According to this configuration, before the plurality of webs overlapped by the triangular plate are folded in the traveling direction, the web can be cut in the traveling direction by the slitter, and the web that has been cut by the gluing means Gluing can be performed between the uncut web and the running direction. Thereby, since cutting and gluing can be performed with respect to the web of the stable state which drive | works, cutting and gluing can be performed accurately.

  In this case, the slitter creates the cut web as a set of divided webs by cutting the web into two parts over the running direction around the widthwise center of the running web. The web is preferably configured such that its width is less than half that of the uncut web.

  According to this structure, the width | variety of each division | segmentation web can be made into half or less with respect to the width | variety of an uncut web. For this reason, each division | segmentation web can be stored and arrange | positioned in the single side | surface of an uncut web.

  In this case, it is preferable that the gluing means is configured to be capable of gluing on both outer sides in the width direction of the web.

  According to this configuration, it is possible to perform, for example, Kannon folding which is a form of special folding of the web. The Kannon folding is a folding method in which a valley is folded around a cutting line formed on a cut web glued to an uncut web.

  In this case, it is preferable that a plurality of slitters are provided corresponding to a plurality of webs, and the plurality of slitters are configured to be capable of cutting an arbitrary web among the plurality of webs.

  According to this configuration, it is possible to cut an arbitrary web out of a plurality of webs and use it as a part of a specially folded web. Thereby, it is possible to create a web group including not only a specially folded single web but also a specially folded web. Thereby, an arbitrary page of the signature created in the rotary printing press can be set as a special folding page.

  In this case, the slitter and the gluing means are provided in the web conveyance device, and the gluing means is provided on the downstream side in the running direction of the slitter, and is provided between the slitter and the gluing means and can be brought into contact with the cut web. It is preferable to further include a reverse crown roller.

  According to this configuration, the cut surface of the cut web can be pulled apart by rolling the cut web on the reverse crown roller, so that the cut surface of the cut web is rubbed against each other. The cut web can be suitably traveled without generating the above.

  In this case, the web conveyance path from the slitter to the gluing means has a first branch conveyance path where the web avoids the reverse crown roller and a second branch conveyance path where the web rolls against the reverse crown roller. The slitter prohibits cutting of the web traveling on the first branch conveyance path and makes it an uncut web, while cutting the web traveling on the second branch conveyance path to make a cut web. Is preferred.

  According to this configuration, the web that is not cut is passed through the first branch conveyance path, and the web that is cut is passed through the second branch conveyance path, so that the uncut web is not brought into rolling contact with the reverse crown roller. The cut web can be brought into rolling contact with the reverse crown roller.

  In this case, it is preferable that the gluing means is configured to be able to change the gluing position by the gluing means in the width direction of the web.

  According to this configuration, since the gluing means can glue the web at a desired position in the width direction, the number of special folding forms of the web can be increased.

  In this case, it is preferable that the slitter is configured to be able to change the cutting position by the slitter in the width direction of the web.

  According to this configuration, since the slitter can cut the web at a desired position in the width direction, the number of special folding forms of the web can be increased.

  In this case, it is preferable that the web conveyance device is configured to be able to change the conveyance position in the width direction of the web to be conveyed.

  According to this structure, since the web conveyance apparatus can convey a web in the desired conveyance position in the width direction, it can increase the form of the special folding of a web.

  In this case, the rotary printing press further includes a pair of sandwiching rollers provided between the web transport device and the triangular plate and capable of sandwiching a plurality of webs stacked by the web transport device. It is preferable that the roller is disposed on the upstream side in the running direction.

  According to this configuration, it is possible to sandwich the cut web and the uncut web that have been glued and overlapped using the existing pair of sandwiching rollers provided in the rotary printing press.

  The rotary printing machine of the present invention includes the above-described special web folding device, a printing device that performs printing on a plurality of webs, a web conveyance device that superimposes a plurality of printed webs, and a plurality of superimposed webs And a folding machine for creating a signature by cutting a plurality of webs.

  According to this configuration, the created signature can be a special signature, and an arbitrary page of the signature can be a special folding page.

  The web special folding method of the present invention is a web special folding method by a rotary printing machine capable of printing on a traveling web and cutting the printed web to create a fold, and includes a wide web traveling and A superimposing step of superimposing a narrow web that is less than half the width of the wide web, and a gluing step of gluing between the wide web and the narrow web in the running direction prior to the superimposing step, And a folding step of folding the wide web and the narrow web that have been glued and overlapped in the running direction.

  According to this configuration, by pasting between the wide web and the narrow web, overlapping the cut web and the uncut web, and then folding the cut cut web and the uncut web Can fold special web.

  According to the web special folding device, the rotary printing press, and the web special folding method of the present invention, the web can be specially folded with a simple configuration.

FIG. 1 is a schematic configuration diagram schematically showing a rotary printing press incorporating a special folding apparatus according to the present embodiment. FIG. 2 is a schematic diagram illustrating a configuration around the web conveyance path from the downstream side of the web path device to the upstream side of the folding machine. FIG. 3 is an external perspective view showing a configuration around the web conveyance path from the downstream side of the web path device to the upstream side of the folding machine. FIG. 4 is an explanatory diagram of variously folded webs.

  Hereinafter, a rotary printing machine incorporating a special folding apparatus according to the present invention and a web special folding method using the rotary printing machine will be described with reference to the accompanying drawings. The present invention is not limited to the following examples. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

  As shown in FIG. 1, a rotary printing press 1 in this embodiment is a so-called newspaper offset rotary printing press, and creates a newspaper that becomes a compromise from a plurality of webs. The rotary printing press 1 includes a plurality (four in the drawing) of paper feeding devices 11, a plurality (four in the drawing) of infeed devices 12, and a plurality (four in the drawing) from the upstream side in the conveyance direction of the web W. ) Printing devices 13 a and 13 b, a web pass device 14 (web transport device), and a folding machine 15.

  Each paper feeding device 11 is provided with a holding arm 20 that holds three webs R each having a web W wound in a roll shape. By rotating the holding arm 20, the webs R are brought into a paper feeding position. You can face it. Each paper feeding device 11 is provided with a paper splicing device (not shown), and when the web R fed out at the paper feeding position becomes small, the paper splicing device causes the paper web R at the paper feeding position to be removed. Thus, the web R in the standby position can be spliced.

  Here, a plurality of types of webs R to be used are prepared according to the width of the paper. For example, the web A has a width A that corresponds to the width of four pages of a newspaper (eclectic), and three pages of a newspaper. There are a C-width winding paper R corresponding to the width, a D-width winding paper R corresponding to the width of two pages of the newspaper, an F-width winding paper R corresponding to the width of one page of the newspaper, and the like. In the following description, a case where an A-width web R is used will be described.

  Each infeed device 12 feeds each web W toward each downstream printing device 13a, 13b and adjusts the tension of each web W. Specifically, the infeed device 12 has an infeed roller 24 that is rotationally driven by a drive motor (not shown) from the upstream side in the conveyance direction of the web W. The in-feed roller 24 can rotate to convey the web W toward the downstream printing apparatuses 13a and 13b, and change the tension of the web W by changing the peripheral speed. It has become.

  The plurality of printing apparatuses 13a and 13b are provided with a multicolor printing apparatus 13a that performs double-sided four-color printing and a two-color printing apparatus 13b that performs double-sided two-color printing. The multi-color printing device 13 a and the two-color printing device 13 b can perform predetermined printing on the web W supplied from each paper feeding device 11. In this embodiment, the printing apparatuses 13a and 13b are configured by the multi-color printing apparatus 13a and the two-color printing apparatus 13b. However, the present invention is not limited to this configuration. For example, various printing apparatuses may be used in combination as appropriate according to the printed matter, such as a double-sided monochrome printing apparatus that performs double-sided monochrome printing and a multicolor printing apparatus that performs 4-color or 2-color printing on one side.

  The web pass device 14 includes a plurality of first slitters 25 that cut along the conveyance direction of the web W at the center in the width direction of the web W, and a large number of guide rollers and turn bars for setting the conveyance path of the cut web W. 26, a compensator roller 27 and the like for correcting the positional deviation of the web W in the transport direction are provided. Therefore, in the web pass device 14, the A-width webs W printed by the printing devices 13a and 13b are cut by the first slitter 25 to form the D-width webs W. The conveyance path is changed by the turn bar 26 and the sheets are overlapped in a predetermined order. Although details will be described later, a special folding device 16 which is a characteristic part of the present invention is incorporated in the web pass device 14. Further, the web pass device 14 is configured to be able to change the transport position in the width direction of the web W to be transported.

  The folding machine 15 is fed from a first folding drag roller 36 (driving roller) and a first paper pressing roller 32 that sandwich and convey a plurality of webs W fed from the web pass device 14, and a pair of rollers 32, 36. The second folding upper drag roller 37 (driving roller) and the second paper pressing roller 33 that sandwich and convey the plurality of webs W and the plurality of webs W fed from the pair of rollers 33 and 37 are vertically folded. It has a triangular plate 34 and a folding device (not shown) that forms a desired signature after laterally cutting the triangle plate 34 by a predetermined length. Specifically, the triangular plate 34 folds a plurality of overlapped webs W around the center in the width direction of the web W in the transport direction.

  Here, a series of printing operations by the rotary printing press 1 will be described. First, when the A-width web W is supplied from each paper feeding device 11 to each printing device 13a, 13b via each infeed device 12, each printing device 13a, 13b has 4 for each web W. Color printing and two-color printing are performed on both sides. Next, the plurality of webs W printed by the respective printing devices 13a and 13b are vertically cut into the D width by the first slitter 25 in the web pass device 14, and the travel route is changed, respectively. Overlapped in order. When the plurality of webs W overlapped by the web pass device 14 are introduced into the folding machine 15, the plurality of overlapped webs W having the D width are vertically folded and then laterally cut to a predetermined length. The desired fold is created by lateral folding, and then the fold is discharged.

  By the way, in order to increase the added value of the signature, the rotary printing machine 1 according to the present embodiment can make any page of the signature a special folding page. Here, with reference to FIG. 2 and FIG. 3, the special folding apparatus 16 which is the invention part of the rotary printing press 1 which concerns on a present Example is demonstrated. FIG. 2 is a schematic diagram schematically showing a part of the configuration of the web path device 14 of FIG.

  In the web pass device 14 of the rotary printing press 1, a first guide roller 30 is provided on the downstream side of the compensator roller 27, and a second guide roller 31 is provided on the downstream side of the first guide roller 30. As described above, the first paper pressing roller 32 and the first folding drag roller 36 of the folding machine 15 are provided on the downstream side of the second guide roller 31, and on the downstream side of the pair of rollers 32, 36. The second paper pressing roller 33 and the second folding upper drag roller 37 are provided. A triangular plate 34 is disposed downstream of the pair of rollers 33 and 37.

  Accordingly, the webs W that have passed through the compensator roller 27 are guided by the first guide roller 30 and the second guide roller 31 and are superimposed on the downstream side of the second guide roller 31. The plurality of overlapped webs W are sandwiched between the first paper pressing roller 32 and the first folding drag roller 36, and thereafter are sandwiched between the second paper pressing roller 33 and the second folding drag roller 37 to form a triangular plate. 34.

  At this time, a special folding device 16 is incorporated in the web path device 14, and the special folding device 16 includes a plurality of second slitters 40 (each of the slitters according to the claims) facing each first guide roller 30. ), A plurality of gluing devices 41 (gluing means) facing each second guide roller 31, and a plurality of reverse crown rollers 42 provided between each first guide roller 30 and each second guide roller 31, It is equipped with.

  Each second slitter 40 is arranged so as to be movable in the width direction of the web W, and can cut each web W in the transport direction at a desired cutting position. Specifically, when each of the D-width webs W cut by the first slitter 25 is introduced into the second slitter 40, each of the D-width webs W has a widthwise central portion of the web W formed by the second slitter 40. By cutting in the center in the transport direction, a cut web W composed of a pair of F-width webs W (divided webs, narrow webs) is created. Each of the second slitters 40 is configured to be able to be separated from and contacted with the first guide roller 30, and any second slitter 40 among the plurality of second slitters 40 is brought into contact with the first guide roller 30. Thus, each web W can be cut.

  The gluing device 41 includes a pair of gluing rollers 45 disposed so as to face the second guide rollers 31, and a glue gun 46 that discharges the glue to the pair of gluing rollers 45. The pair of gluing rollers 45 is configured to be movable in the width direction of the web W, and can glue each web W in the conveying direction at a desired gluing position. Specifically, the pair of gluing rollers 45 have gluing positions on both outer sides in the width direction of the web W, and can perform gluing on both outer sides in the width direction of the web W. In addition, each gluing roller 45 is configured to be detachable from the second guide roller 31. Among the plurality of gluing rollers 45, any gluing roller 45 is brought into contact with the second guide roller 31 to perform gluing. ing.

  The glue gun 46 provided in the vicinity of each gluing roller 45 discharges the gluing to each gluing roller 45 and attaches the gluing to the gluing roller 45. Since the web W located outside the signature is not required to be glued, the glue roller 45 and the glue gun 46 are arranged on the second guide roller 31 through which the web W located outside the signature is passed. Not set up.

  Thereby, for example, when the cut web W cut by the second slitter 40 is introduced into the pair of glue rollers 45, the pair of glue rollers 45 are located on both outer sides in the width direction of the cut web W, that is, a pair of Among the webs W having the F width, gluing is performed on the outer end portion in the width direction of one web W and the outer end portion in the width direction of the other web W, respectively. On the other hand, when an uncut web W (wide web) that has not been cut is introduced into the glue roller 45, the pair of glue rollers 45 glue the both sides of the uncut web W in the width direction.

  An inverse crown roller 42 is disposed between each first guide roller 30 and each second guide roller 31, and each inverse crown roller 42 has a small diameter from the outer side toward the center of the shaft. It is formed to become. The reverse crown roller 42 is disposed so as to be in rolling contact with the cut web W cut by the second slitter 40, while being spaced apart from the uncut web W that is not cut by the second slitter 40. Is done. In other words, the conveyance path of the web W between the first guide roller 30 and the second guide roller 31 is an uncut conveyance path L1 (first branch conveyance path) that does not roll on the reverse crown roller 42, and the reverse crown roller 42. And a cutting conveyance path L2 (second branch conveyance path) that is in contact with the contact. As a result, the cut web W cut by the second slitter 40, that is, the pair of F-width divided webs W, is separated to the outside in the width direction after passing through the reverse crown roller 42. For this reason, a pair of division | segmentation web W will be conveyed, without making the cut surfaces contact, and can be conveyed suitably, without generating the edge fold by cutting, a piece of paper, etc.

  According to the above configuration, for example, the web W can be specially folded as shown in FIG. Here, as shown to A of FIG. 4, as a special folding, there exists a Kannon folding etc., for example. Here, the folded fold is a D-width uncut web W that is glued to both outer ends in the width direction of the web W and a pair of F-width webs W that become the cut web W. The overlapped web W is folded in the transport direction so that the cut web W is on the inner side with the central portion in the width direction of the web W as the center. At this time, a margin 50 is formed at both ends of the web W in the width direction.

  Also, as a different special fold, the signature shown in B of FIG. 4 is a pair of F that becomes a D-width uncut web W that is glued to both outer ends in the width direction of the web W and a cut web W. The web W having a width is overlapped, and the web W is folded in the transport direction so that the cut web W is on the outside with the center portion in the width direction of the overlapped web W as the center.

  As described above, it is not limited to kannon folding or the like. As shown in C to F of FIG. 4, there are various types of web W depending on the type of web R to be used, how to superimpose web W, and how web W is folded. It is possible to perform special folding. For example, the F-width web W is arranged close to one side of the D-width web W with respect to the front surface, and the F-width web W is brought close to the other side with respect to the back surface of the D-width web W. By arranging and gluing at both outer ends in the width direction of the web W, special folds shown in C and D of FIG. 4 can be created. Further, for example, the F-width web W is arranged close to one side of one side of the front and back sides of the D-width web W, and glued at the outer one end in the width direction of the D-width web W. A special fold signature shown in E and F of FIG. 4 can be created.

  Here, for example, a series of operations for folding the web W that has undergone Kannon folding shown in FIG. 4A as the innermost page of the signature will be described. First, when the plurality of parallel webs W sent from the compensator rollers 27 are introduced into the first guide rollers 30 and the second slitters 40, respectively, the innermost side (shown in the figure). The web W located on the lowermost side is cut by the second slitter 40 and conveyed toward the second guide roller 31 as the cut web W. On the other hand, the other webs W are not cut by the second slitter 40 and are conveyed toward the second guide roller 31 as uncut webs W, respectively.

  At this time, since the cut web W passes through the cut conveyance path L2 and is brought into rolling contact with the reverse crown roller 42, the pair of F-width webs W are introduced to the second guide roller 31 while being separated and conveyed. On the other hand, the uncut web W is introduced into the second guide roller 31 through the uncut feed path L1. Thereafter, the cut-out web W is glued at both ends on the upper surface thereof by a pair of gluing rollers 45 (gluing step). Then, the glued cut web W is overlapped and sandwiched between the uncut web W located above by the first paper pressing roller 32 and the first folding drag roller 36 (superposition step). The plurality of overlapped webs W are introduced into the triangular plate 34 via the second paper pressing roller 33 and the second folding upper drag roller 37, so that the web W in the transport direction is centered on the central portion in the width direction. It is vertically folded over (folding process). Thereafter, a folding device (not shown) can be used to create a signature in which the innermost page is a special fold by cutting the web W.

  It should be noted that the web W to be cut by the second slitter 40 is passed through the cutting conveyance path L2 during the paper passing operation of the web W, which is a preparatory work for the printing operation. On the other hand, the web W that is not cut by the second slitter 40 is passed through the uncut cutting path L1. In addition, the printing devices 13a and 13b, for example, in the case where printing is performed over four pages for a double folding page, consider the glue margin 50 formed on the specially folded web W. Printing is in progress. In other words, the printing devices 13a and 13b perform printing while avoiding the portion where the margin of margin 50 is formed on the printing surface of the web W, and also print in accordance with the pattern pitch of the cut and uncut web W to be glued. I do.

  According to the above configuration, an arbitrary web W among the plurality of webs W is cut by the second slitter 40, the web W is glued by the pair of glue rollers 45, and the cut web W and the uncut web W , And then folding the cut web W and the uncut web W overlapped by the triangular plate 34, a special fold of the web W can be created. Then, the specially folded web W can be created by cutting the specially folded web W with a folding device (not shown). Further, the rotary printing press 1 according to the present embodiment adds a simple configuration including a plurality of second slitters 40, a plurality of gluing devices 41, and a plurality of reverse crown rollers 42 to the conventional configuration, thereby enabling the special folding of the web W to be performed. Can be created.

  In the present embodiment, in the web pass device 14 of the rotary printing press 1, a plurality of second slitters 40 and a plurality of gluing devices 41 are provided for each of a plurality of webs W running in parallel, but at least one second If the slitter 40 and the gluing device 41 of 1 are arranged at an arbitrary place, a special folding signature can be created.

  In addition, according to this configuration, a special fold can be created by using only one printing device 13a, 13b. Specifically, first, after printing is performed on the conveyed web A of width W by the printing devices 13a and 13b, the web W printed by the first slitter 25 of the web pass device 14 is changed to two D widths. Form on the web W. Thereafter, of the two D-width webs W, the second slitter 40 sets one D-width web W as the cut web W and the other D-width web W as the uncut web W. Then, the pasting web W is glued between the cut web W and the uncut web W by the gluing device 41, and after these are overlapped, the web W overlapped by the folding machine 15 is folded and cut to be specially folded. You can create a compromise.

  Further, by changing the cutting position of each second slitter 40 in the width direction, changing the gluing position of each gluing roller 45 in the width direction, or changing the conveyance position of the web pass device 14 in the width direction. Special folding other than the special folding form of the web W shown in FIG. 4 can be realized. For example, the width of the web W cut by the second slitter 40 is formed to a predetermined width equal to or less than the F width, and the cut web W is arranged in the center of one side of the uncut web W by the web pass device 14. By doing so, it becomes possible to create a spread page in the center of one side. Moreover, it is also possible to create a bag-closed page by setting the gluing position of the web W to be glued by the pair of gluing rollers 45 to one side in the width direction of the web W and the center in the width direction.

  In this embodiment, the gluing device 41 includes the gluing roller 45 and the glue gun 46. However, the gluing roller 45 may be omitted and the glue gun 46 may directly discharge the gluing.

  As described above, the web special folding device, the rotary printing press, and the web special folding method according to the present invention are useful in increasing the added value of the signature, and are particularly suitable for newspaper offset rotary printing presses. Yes.

DESCRIPTION OF SYMBOLS 1 Rotation printing machine 11 Paper feeder 12 Infeed apparatus 13a, 13b Printing apparatus 14 Web pass apparatus 15 Folding machine 16 Special folding apparatus 20 Holding arm 25 Infeed roller 25 First slitter 26 Turn bar 27 Compensator roller 30 First guide roller 31 Second guide roller 32 First paper pressing roller 33 Second paper pressing roller 34 Triangular plate 36 First folding drag roller 37 Second folding drag roller 40 Second slitter 41 Gluing device 42 Reverse crown roller 45 Gluing roller 46 Glue gun 50 Gluing margin R Wrapping paper W Web L1 Uncut transport path L2 Cut transport path

Claims (13)

A plurality of webs that overlap each other, a web conveyance device that can convey the plurality of superimposed webs downstream in the traveling direction, and a plurality of webs that are provided on the downstream side in the traveling direction of the web conveyance device. A special folding device for a web incorporated in a rotary printing press provided with a triangular plate that folds in the running direction,
A slitter capable of cutting at least one of the plurality of webs to be overlapped in the running direction;
A web special feature comprising gluing means capable of gluing in a running direction between a cut web cut by the slitter and an uncut web superimposed on the cut web. Folding device.   The web folding apparatus according to claim 1, wherein the slitter and the gluing means are disposed on the upstream side in the traveling direction of the triangular plate. The slitter creates the cut web as a set of divided webs by cutting the web into two parts over the running direction around the center in the width direction of the running web.
3. The special web folding apparatus according to claim 1, wherein each of the divided webs is configured to have a width that is half or less than that of the uncut web. 4.   The web special folding apparatus according to any one of claims 1 to 3, wherein the gluing means is configured to allow gluing to both outer sides in the width direction of the web.   The plurality of slitters are provided corresponding to the plurality of webs, and the plurality of slitters are configured to be capable of cutting any of the plurality of webs. The special folding apparatus for a web according to any one of 1 to 4. The slitter and the gluing means are provided in the web conveyance device, and the gluing means is provided on the downstream side in the running direction of the slitter,
The special web according to any one of claims 1 to 5, further comprising a reverse crown roller provided between the slitter and the gluing means and capable of rolling contact with the cut web. Folding device. The web conveyance path from the slitter to the gluing means has a first branch conveyance path where the web avoids the reverse crown roller, and a second branch conveyance path where the web rolls against the reverse crown roller. And
The slitter prohibits cutting of the web traveling on the first branch conveyance path to make the uncut web, while performing cutting on the web traveling on the second branch conveyance path. The special folding apparatus for a web according to claim 6, wherein the web is the trimmed web.   The web special folding apparatus according to any one of claims 1 to 7, wherein the gluing means is configured to be able to change a gluing position of the gluing means in the width direction of the web.   The web folding apparatus according to any one of claims 1 to 8, wherein the slitter is configured to be able to change a cutting position by the slitter in a width direction of the web.   The special web folding apparatus according to any one of claims 1 to 9, wherein the web conveyance device is configured to be able to change a conveyance position in a width direction of the web to be conveyed. The rotary printing press further includes a pair of sandwiching rollers provided between the web transport device and the triangular plate and capable of sandwiching a plurality of webs stacked by the web transport device,
The special folding apparatus for a web according to any one of claims 1 to 10, wherein the gluing means is disposed on the upstream side in the traveling direction of the pair of sandwiching rollers. The web special folding device according to any one of claims 1 to 11,
A printing device for printing on the plurality of webs;
The web conveying device for superimposing the printed webs while conveying the webs;
A rotary printing machine, comprising: a folding machine that folds the plurality of webs that are overlapped and that cuts the plurality of webs to create a fold. A special web folding method using a rotary printing machine that can print on a traveling web and cut the printed web to create a signature.
A superimposing step of superimposing a traveling wide web and a narrow web that is less than half the width of the wide web;
Gluing step of gluing across the running direction between the wide web and the narrow web prior to the overlapping process;
A special web folding method comprising: a folding step of folding the wide web and the narrow web that have been glued and overlapped in a running direction.

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