JP2009132475A - Web conveying device and web press - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a web conveying device and a web press capable of adequately conveying a web to a folding machine by providing the consistent conveying force to a printed web. <P>SOLUTION: The web conveying device comprises a pair of first drag rollers 62, 63 which are provided and driven by drive motors 71, 72 to consolidate, hold and convey a plurality of webs W, and a second drag roller 64 which is provided on the downstream side of the web conveying direction from the pair of first drag rollers 62, 63 and driven by a drive motor 73 to convey the plurality of webs W. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a web transport device that transports a web printed by a printing unit to a folding machine, and a rotary printing press to which the web transport device is applied.

  A general web offset press for newspaper includes a plurality of paper feeding devices, a plurality of printing units, a turn bar device, and a folding machine, and a web is supplied from each paper feeding device to the printing unit. After each web is printed, the turn route device changes the travel route of the plurality of webs and overlaps in a predetermined order. The paper is then cut horizontally and folded to form a folded book, which is discharged.

  In such a newspaper offset rotary printing press, as described above, the plurality of webs on which printing has been performed are transported to the folding machine in a state where the travel route is changed by the turn bar device and overlapped, A folded book is formed by being folded and then folded horizontally. 2. Description of the Related Art Conventionally, a conveyance device for properly conveying a plurality of superimposed webs to a folding machine is provided between the turn bar device and the folding machine.

  This web conveyance device is configured by providing two pairs of drag roller groups, each of which is composed of a drag rotatable roller and a freely rotatable wallis, along the web conveyance direction. That is, the plurality of printed webs are superposed with the travel route changed by the turn bar device, and one surface side of the superposed webs is wound by a predetermined angle by the first drag roller and conveyed. With the two drag rollers, the other surface side of the overlapped webs is wound at a predetermined angle and conveyed to the folding machine.

  However, in the plurality of webs wound around the outer peripheral surface of each drag roller, the speed of the web traveling outside is faster than the speed of the web traveling inside. For this reason, the plurality of webs conveyed by the first drag roller has a high speed when the web traveling outside is higher than the web traveling inside, and when the web is conveyed to the second drag roller in this state, the web conveyed at low speed. However, since the web is extended here because the second drag roller is outside, the web conveyed at high speed is inside the second drag roller, so that slack occurs and the web is damaged. There is a risk that.

  Thus, for example, Patent Document 1 below discloses a web that is appropriately conveyed by providing a tension roller group between two drag roller groups. The multi-layer web ribbon approach device to the longitudinal fold former described in Patent Document 1 is arranged at intervals in the multi-layer web ribbon traveling direction, and is formed on the same plane or on different planes. A former distal guide roller and a former proximal guide roller driven to act against the layer web ribbon, and at least one tension roll set between the former distal guide roller and the former proximal guide roller The multilayer web ribbon is partially wrapped around the former proximal guide roller at an angle α and partially around the former distal guide roller at an angle β.

Japanese Patent No. 2589958

  In the multi-layer web ribbon approaching device to the conventional longitudinal folding former described above, a pair of pulling rolls is provided between the former distal guide roller and the former proximal guide roller. The pulling roller and the pulling roller of the set guide roller and pulling roll group are all driven. For this reason, the multi-layer web ribbon conveyed by the former distal guide roller has a higher speed than the web ribbon traveling inside, and the web ribbon traveling outside becomes low speed when conveyed to the pulling roll group in this state. On the other hand, the web ribbon conveyed by the web enters the pulling roller side, while the web ribbon conveyed at a high speed enters the pulling roll side, where loosening is likely to occur and the web may be damaged. is there.

  The present invention solves the above-described problems, and provides a web transport device and a rotary printing press that can transport a web to a folding machine properly by applying a stable transport force to the printed web. The purpose is to provide.

  In order to achieve the above object, a web transport apparatus according to the first aspect of the present invention is a web transport apparatus for transporting a printed web to a folding machine. A pair of first conveyance rollers that are nipped and conveyed, and a second conveyance roller that is rotatably driven downstream of the pair of first conveyance rollers in the web conveyance direction and conveys a plurality of webs. It is characterized by.

  In the web conveyance device according to the second aspect of the present invention, a winding angle for winding the web around a predetermined angle is set around one of the pair of first conveyance rollers.

  In the web conveyance device of the invention of claim 3, the conveyance path of the web conveyed to the folding machine side from the pair of first conveyance rollers through the second conveyance roller is set linearly. .

  According to a fourth aspect of the present invention, there is provided a web conveying device in which a winding angle for setting the web around the outer peripheral surface of the second conveying roller by a predetermined angle is set.

  According to a fifth aspect of the present invention, there is provided a web transport apparatus, wherein the pair of first transport rollers can be independently driven, and the pair of first transport rollers is driven by the drive means according to the transport state of a plurality of webs. And a control means capable of adjusting and controlling the rotation speed.

  According to a sixth aspect of the present invention, there is provided a web transport device for transporting a plurality of printed webs to a folding machine, wherein the web transport device is rotatably provided and collects the plurality of webs and guides traveling. A pair of rollers, a pair of first conveying rollers that are rotatably driven downstream of the guide rollers in the web conveying direction and sandwich and convey a plurality of webs; and a pair of first conveying rollers in the web conveying direction. And a second transport roller that is provided on the downstream side so as to be driven to rotate and transports a plurality of webs.

  In the web conveyance device of the invention of claim 7, the guide roller is characterized in that a winding angle for winding the web around the outer peripheral surface by a predetermined angle is set.

  In the web conveyance device according to an eighth aspect of the present invention, the conveyance path of the web conveyed from the guide roller to the folding machine side through the pair of first conveyance rollers and the second conveyance rollers is set linearly. It is characterized by.

  According to a ninth aspect of the present invention, there is provided a web conveyance device in which a winding angle for setting a predetermined angle around the outer circumferential surface of the second conveyance roller is set.

  In the web conveyance device of the tenth aspect of the invention, a wrapping angle for setting the web around a predetermined angle is set around one of the pair of first conveyance rollers.

  In the web conveyance device of the invention of claim 11, the pair of first conveyance rollers can be independently driven by the pair of first conveyance rollers, and the pair of first conveyance rollers by the driving unit according to the conveyance state of a plurality of webs. And a control means capable of adjusting and controlling the rotation speed.

  A rotary printing press according to a twelfth aspect of the present invention includes a paper feeding device that supplies a web from a web, a printing unit that performs printing on the web fed from the paper feeding device, and a plurality of prints that are printed by the printing unit. In a rotary printing press comprising: a folding machine that forms a folded book by overlapping and cutting and folding a web; and a web conveyance device that conveys a plurality of webs printed by the printing unit to the folding machine. The web conveying device is provided so as to be driven to rotate, collects a plurality of webs, and sandwiches and conveys the webs, and is driven downstream of the pair of first conveying rollers in the web conveying direction. A second conveyance roller that is rotatably provided and conveys a plurality of webs.

  A rotary printing press according to a thirteenth aspect of the present invention is a paper feeding device that supplies a web from a web, a printing unit that performs printing on the web fed from the paper feeding device, and a plurality of prints that are printed by the printing unit. In a rotary printing press comprising: a folding machine that forms a folded book by overlapping and cutting and folding a web; and a web conveyance device that conveys a plurality of webs printed by the printing unit to the folding machine. The web conveying device is rotatably provided to aggregate a plurality of webs and guides the traveling, and is provided so as to be driven to rotate downstream from the guide rollers in the web conveying direction. A pair of first transport rollers that are nipped and transported, and a plurality of webs are transported so as to be driven to rotate downstream of the pair of first transport rollers in the web transport direction. 2 and the conveying roller, is characterized in that it has a.

  According to the web transport device of the first aspect of the present invention, a pair of first transport rollers that are provided so as to be capable of driving rotation and collect and sandwich and transport a plurality of webs, and web transport from the pair of first transport rollers. A second conveying roller is provided on the downstream side in the direction so as to be driven to rotate and convey the web. Accordingly, the plurality of webs on which printing has been performed are gathered and sandwiched and conveyed by the pair of first rotating rollers that are driven to rotate, and are conveyed to the folding machine by the second conveying rollers that are driven to rotate. The webs are properly gathered by the first transport rollers that are driven to rotate with each other, and are given a predetermined transport force so that they are stably fed to the second transport rollers, so that a plurality of webs can be properly transported. Can be transported to the folding machine.

  According to the web transport device of the second aspect of the invention, the winding angle for winding the web around a predetermined angle around one of the pair of first transport rollers is set. By being wound around one transport roller, a predetermined transport force can be applied, the web can be transported stably, and then transported to a folding machine by a second transport roller that rotates. The web can be properly conveyed while suppressing the pulling and loosening of the web.

  According to the web conveyance device of the invention of claim 3, since the conveyance path of the web conveyed from the pair of first conveyance rollers to the folding machine side via the second conveyance rollers is set in a straight line, it is overlapped and travels. The plurality of webs hardly cause a difference in traveling speed, and the webs can be properly conveyed without being pulled or slackened.

  According to the web conveyance device of the fourth aspect of the invention, since the winding angle for winding the web around the outer peripheral surface of the second conveyance roller by a predetermined angle is set, a plurality of webs that travel while being overlapped are wound around the second conveyance roller. Thus, a predetermined conveying force can be applied, and the web can be stably conveyed.

  According to the web conveyance device of the invention of claim 5, the drive means capable of independently driving the pair of first conveyance rollers, and the pair of first conveyance rollers by the drive means according to the conveyance state of the plurality of webs. And a control unit capable of adjusting and controlling the rotation speed, so that even if a manufacturing error or an assembly error occurs in the pair of first conveying rollers or the outer peripheral surface is worn, the control unit is controlled by each driving unit. By independently adjusting the rotation speed of each first transport roller, the peripheral speed can be appropriately adjusted according to the transport state of a plurality of webs, and the web can be transported properly at all times.

  According to the web transport device of the sixth aspect of the present invention, a guide roller that is rotatably provided and aggregates a plurality of webs and guides the travel, and is provided on the downstream side in the web transport direction from the guide roller so as to be driven to rotate. A pair of first transport rollers that sandwich and transport the plurality of webs, and a second transport that is rotatably driven downstream of the pair of first transport rollers in the web transport direction and transports the plurality of webs And a roller. Accordingly, the plurality of webs on which printing has been performed are appropriately aggregated by the guide roller and the travel thereof is guided to reach the pair of first conveyance rollers, and are sandwiched and conveyed by the first conveyance rollers that are driven to rotate, Subsequently, the web is conveyed to the folding machine by the second conveying roller that is driven to rotate, and the plurality of webs are sandwiched by the first conveying rollers that are driven to rotate and are imparted with conveying force, so that the first web is stably conveyed. It will be sent to 2 conveyance rollers, and a plurality of webs can be appropriately conveyed to a folding machine.

  According to the web conveyance device of the seventh aspect of the invention, since the winding angle for winding the web around the outer circumferential surface of the guide roller is set, the guide roller appropriately overlaps the plurality of webs, and as the web runs. By rotating together, it is possible to appropriately guide and convey the plurality of superimposed webs.

  According to the web conveyance device of the eighth aspect of the invention, the web conveyance path conveyed from the guide roller to the folding machine side through the pair of first conveyance rollers and the second conveyance roller is set in a straight line. The plurality of webs traveling in the above manner hardly cause a difference in traveling speed, and the webs can be properly conveyed without being pulled or loosened.

  According to the web transport device of the ninth aspect of the invention, since the winding angle for winding the web around the outer peripheral surface of the second transport roller by a predetermined angle is set, the plurality of webs that travel while being overlapped are wound around the second transport roller. Thus, a predetermined conveying force can be applied, and the web can be stably conveyed.

  According to the web transport device of the tenth aspect of the present invention, the winding angle for winding the web around a predetermined angle around one of the pair of first transport rollers is set. By being wound around one transport roller, a predetermined transport force can be applied, the web can be transported stably, and then transported to a folding machine by a second transport roller that rotates. The web can be properly conveyed while suppressing the pulling and loosening of the web.

  According to the web transport apparatus of the invention of claim 11, the pair of first transport rollers can be driven by the drive means capable of independently driving the pair of first transport rollers, and according to the transport state of the plurality of webs. Control means capable of adjusting and controlling the rotation speed of the pair of first conveying rollers. Even if a manufacturing error or assembly error occurs in the pair of first conveying rollers or wear occurs on the outer peripheral surface, the control means can control each driving means. By independently adjusting the rotational speed of each first transport roller, the peripheral speed can be appropriately adjusted according to the transport state of a plurality of webs, and the webs can always be transported properly. .

  According to a rotary printing press of a twelfth aspect of the present invention, a web transport device comprising a paper feeding device, a printing unit, a folding device, and a web transport device that stacks a plurality of webs from the printing unit and transports them to the folding device is provided. A pair of first conveying rollers that are provided so as to be driven to rotate and collect and sandwich and convey a plurality of webs, and are provided so as to be able to be driven to rotate downstream of the pair of first conveying rollers in the web conveying direction. A second conveyance roller that conveys a plurality of webs is provided. Accordingly, the plurality of webs on which printing has been performed by the printing unit are gathered together by a pair of first rotating rollers that are driven and rotated, are nipped and conveyed, and are folded by a second conveying roller that is rotated by driving. The plurality of webs are appropriately collected by the first conveying rollers that are driven and rotated with each other, and a predetermined conveying force is applied, so that the webs are stably fed to the second conveying rollers. As a result, a plurality of webs can be appropriately conveyed to the folder, and as a result, the print quality can be improved.

  According to a rotary printing press of a thirteenth aspect of the present invention, a web transport device is provided, comprising: a paper feeding device, a printing unit, a folding device, and a web transport device that stacks and transports a plurality of webs from the printing unit to the folding device. As a guide roller that aggregates a plurality of webs and guides the traveling thereof, and a pair of first conveying rollers that are rotatably driven downstream of the guide rollers in the web conveying direction and sandwich and convey the plurality of webs And a second conveying roller that is rotatably provided downstream of the pair of first conveying rollers in the web conveying direction and conveys a plurality of webs. Accordingly, the plurality of webs printed by the printing unit are gathered together by the guide rollers in a stacked state, and the travel thereof is guided to reach the pair of first transport rollers, and the first transport rollers that are driven to rotate. The web is sandwiched and transported, and is then transported to the folding machine by the second transport roller that is driven to rotate, and the plurality of webs are sandwiched by the first transport roller that is driven and rotated to give a transport force. Thus, the web is stably fed to the second conveyance roller, and a plurality of webs can be appropriately conveyed to the folding machine, and as a result, the print quality can be improved.

  Exemplary embodiments of a web conveyance device and a rotary printing press according to the present invention will be described below in detail with reference to the accompanying drawings. In addition, this invention is not limited by this Example.

  1 is a schematic diagram showing a roll configuration in a web conveyance device according to a first embodiment of the present invention, FIG. 2 is a perspective view showing the web conveyance device of the first embodiment, and FIG. 3 is a web conveyance device of the first embodiment. It is the schematic showing the web offset web offset press to which is applied.

  In this embodiment, as shown in FIG. 3, the newspaper offset rotary printing press applied as a rotary printing press includes a plurality of paper feeding devices 11, a plurality of printing units 12, a turn bar device 13, and a web conveying device. 14 and a folding machine 15. Each paper feeding device 11 is provided with a holding arm 16 that holds three webs R each having a web W wound in a roll shape. By rotating the holding arm 16, the webs R are fed. Can be rotated to a position. 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.

  In addition, the printing unit 12 is provided with a multicolor printing unit 17 that performs double-sided four-color printing, and a two-color printing unit 18 that performs double-sided two-color printing. The multi-color printing unit 17 and the two-color printing unit 18 can perform predetermined printing on the web W supplied from each paper feeding device 11. In this embodiment, the printing unit 12 is composed of the multi-color printing unit 17 and the two-color printing unit 18, but is not limited to this configuration. For example, various units may be used in combination as appropriate according to the printed matter, such as a double-sided single-color printing unit that performs single-sided printing on both sides and a multicolor printing unit that performs four-color or two-color printing on one side.

  Further, the turn bar device 13 is provided with a plurality of turn bars (not shown), and the travel routes of the webs W sent from the printing units 17 and 18 can be changed and overlapped in a predetermined order. The web conveyance device 14 is configured to superimpose a plurality of webs W sent out from the turn bar device 13 and convey them to the folding machine 15. The folding machine 14 vertically folds the web W transported by the web transport device 14, cuts the web W by a predetermined length, further folds it horizontally to form a desired folding book, and then discharges the paper.

  Here, the web conveyance apparatus 14 mentioned above is demonstrated in detail.

  As shown in FIGS. 1 and 2, the web conveyance device 14 is provided so as to be driven to rotate and collects a plurality of webs W and sandwiches and conveys a pair of first drag rollers (first conveyance rollers) 62 and 63. And a second drag roller (second transport roller) 64 that transports a plurality of webs W so as to be driven to rotate downstream of the pair of first drag rollers 62 and 63 in the web transport direction.

  That is, on the most upstream side in the web conveyance direction, a pair of first drag rollers 62 and 63 are provided that aggregate and sandwich and convey a plurality of webs W stacked in a predetermined order by the turn bar device 13 described above. Yes. A second drag roller 64 for transporting the web W is provided downstream of the first drag rollers 62 and 63 in the web transport direction. The second drag roller 64 and the second drag roller 64 are opposed to the second drag roller 64. A plurality of Wallis 65 holding W is provided.

  A triangular plate 66 for longitudinally folding the web W is provided downstream of the second drag roller 64 and the wallis 65 in the web conveying direction, and a pair of lead-in rollers 67 and 68 and a pair of nippins are provided below the triangular plate 66. Growlers 69 and 70 are provided.

  The first drag roller 62 is rotatably supported by a frame (not shown), and contacts the upper surface side of the web W on which a plurality of outer peripheral surfaces are overlapped. On the other hand, the first drag roller 63 is rotatably supported by a frame (not shown), and comes into contact with the lower surface side of the web W in which a plurality of outer peripheral surfaces are overlapped. In this case, the first drag roller 63 is supported so as to be movable toward and away from the first drag roller 62, and the outer peripheral surface of the first drag roller 62 is pressed by a pressing device such as an air cylinder (or a spring member) (not shown). Can be pressed. Therefore, a plurality of webs W overlapped by the first drag roller 62 and the first drag roller 63 can be sandwiched and conveyed.

  Further, the second drag roller 64 is rotatably supported by a frame (not shown) and contacts the lower surface side of the web W in which a plurality of outer peripheral surfaces are overlapped. On the other hand, the plurality of wallis 65 are rotatably supported by a frame (not shown) and come into contact with the upper surface side of the web W in which a plurality of outer peripheral surfaces are overlapped. In this case, the wallis 65 is supported so as to be movable toward and away from the second drag roller 64, and the outer peripheral surface is pressed against the outer peripheral surface of the second drag roller 64 by a pressing device such as an air cylinder (or a spring member) (not shown). It is possible. Therefore, a plurality of webs W overlapped by the second drag roller 64 and the wallis 65 can be sandwiched and conveyed.

  The pair of first drag rollers 62 and 63 and the second drag roller 64 can be driven and rotated by independent drive systems, that is, separate drive motors 71, 72, and 73. The drive motors 71, 72, and 73 can be driven and controlled by the control device 74, and the control device 74 controls the rotation speed of the drive motors 71, 72, and 73 to thereby control the first drag roller 62. 63 and the second drag roller 64 can be adjusted. The first drag rollers 62 and 63 and the second drag roller 64 are made of a hard (metal) material, and the surface is subjected to processing for increasing frictional force (for example, electrodeposition coating of diamond powder). The web clamping force can be increased without wearing the surface, and a stable web clamping force can be maintained.

  Further, the conveyance path of the web conveyed from the pair of first drag rollers 62 and 63 to the folding machine 15 side through the second drag roller 64 and the wallis 65 is set linearly.

  Therefore, in the newspaper offset rotary printing press of this embodiment configured as described above, as shown in FIG. 3, first, the multi-color printing unit and the 16 or two-color printing unit constituting the printing unit 12 from each paper feeder 11. When the web W is supplied to the web 17, four-color printing or two-color printing is performed on each web W in the printing units 16 and 17. Next, the plurality of webs W printed by the printing units 16 and 17 are overlapped in a predetermined order while the travel route is changed by the turn bar device 13. Then, a plurality of webs W overlapped are transported to the folding machine 15 by the web transport device 14. In this folding machine 15, as shown in FIG. 2, after being vertically folded by a triangular plate 66, it is sent downward by lead-in rollers 67, 68 and nipping rollers 69, 70, and by a folding cylinder and a saw cylinder not shown. The paper is cut horizontally and sandwiched between a pair of folding rollers to form a folded book, which is discharged onto a paper discharge conveyor by an impeller.

  In this case, the plurality of webs W on which the printing has been performed have their travel routes changed by the turn bar device 13 and are superposed in a predetermined order to reach the web conveyance device 14. As shown in FIGS. 1 and 2, in the web transport device 14, first, a plurality of overlapped webs W are collected and sandwiched and transported by the pair of first drag rollers 62 and 63 that are driven and rotated. Next, the second drag roller 64 that is driven to rotate and the plurality of wallis 65 are sandwiched and conveyed to the folding machine 15 side.

  That is, the plurality of webs W overlapped first directly enter between the pair of first and second drag rollers 22 and 23 that are driven to rotate, where they are gathered and then sandwiched between the two to give a conveying force. Next, the sheet enters between the second drag roller 64 and the wallis 65, and is sandwiched between the two to apply a conveying force. Therefore, in the first drag rollers 62 and 63, substantially the same conveying force is applied to the plurality of overlapped webs W and is sent to the second drag roller 64, and the second drag roller 64 and the wallis 65 are connected to each other. In the meantime, no tensile force acts on the web W and no slack occurs in the web W.

  At this time, the web W conveyed to the folding machine 15 side through the first drag rollers 62 and 63, the second drag roller 64 and the wallis 65 is also conveyed substantially linearly. Occurrence and slack in the web W are prevented.

  Furthermore, the control device 74 controls the drive motors 71 and 72 in accordance with the traveling state of the plurality of webs W, and adjusts the rotational speeds of the first drag rollers 62 and 63. That is, when a manufacturing error or assembly error of each first drag roller 62, 63 or wear of the outer peripheral surface occurs, the rotation speed of each first drag roller 62, 63 is adjusted by the control device 74, The peripheral speed is adjusted to be the same. Further, when the slack of the web W occurs between the first drag rollers 62 and 63 and the second drag roller 64, the rotational speed of each of the first drag rollers 62 and 63 is individually adjusted by the control device 74. Adjust the peripheral speed to be different.

  As described above, in the web conveyance device according to the first embodiment, the pair of first drag rollers 62 and 63 that are provided so as to be driven to rotate and aggregate and sandwich and convey the plurality of webs W, and the pair of first drag rollers. A second drag roller 64 is provided on the downstream side in the web conveyance direction from the drag rollers 62 and 63 so as to be driven to rotate and convey a plurality of webs W.

  Accordingly, the plurality of webs W on which the printing has been performed are collected by the first drag rollers 62 and 63 that are driven and rotated by the drive motors 71 and 72, are sandwiched and conveyed, and then are driven and rotated by the drive motor 74. The web W is sandwiched between the first drag rollers 62 and 63 that are driven to rotate with each other, and the web W is stably conveyed by being sandwiched between the two drag rollers 64 and the wallis 65. Therefore, the plurality of webs W can be appropriately conveyed to the folding machine.

  Moreover, in the web conveyance apparatus of Example 1, the conveyance path | route of the web W conveyed to the folding machine 15 side via the 2nd drag roller 64 and the wallis 65 from the 1st drag rollers 62 and 63 is set to linear form. Accordingly, the plurality of webs W that travel while being overlapped hardly generate a difference in travel speed, and the web W can be appropriately conveyed without being pulled or slackened.

  In the web conveyance device of the first embodiment, the first drag rollers 62 and 63 can be driven and rotated by independent drive motors 71 and 72, respectively, and can be adjusted and controlled by the control device 74. Therefore, when manufacturing errors or assembly errors occur in the first drag rollers 62 and 63 or wear occurs on the outer peripheral surface, the slack of the web W occurs between the first drag rollers 62 and 63 and the second drag roller 64. Even in this case, the peripheral speed can be made appropriate by independently adjusting the rotation speed of the first drag rollers 62 and 63 by the control device 74, and the web W can always be properly conveyed. it can.

  Furthermore, in the web conveyance device of the first embodiment, the winding angle α for winding the web W around the outer peripheral surface by a predetermined angle with respect to the first drag roller 62 is set. Accordingly, the first drag roller 62 can appropriately overlap the plurality of webs W, and can stably convey the plurality of overlapped webs W by applying a conveying force to the web W. .

  FIG. 4 is a schematic diagram illustrating a roll configuration in the web conveyance device according to the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the second embodiment, as shown in FIG. 4, the web conveying device 81 is provided so as to be driven to rotate and collects a plurality of webs W, and sandwiches and conveys the webs W. The first drag rollers (first conveying rollers) 62. , 63 and a second drag roller (second conveyance roller) 64 that is rotatably provided downstream of the pair of first drag rollers 62, 63 and conveys a plurality of webs W. A winding angle β for winding the web W around the outer peripheral surface of the second drag roller 64 by a predetermined angle is set.

  Accordingly, the plurality of webs W on which printing has been performed are overlapped in a predetermined order and reach the web conveyance device 81. In this web conveying device 81, first, the plurality of overlapped webs W are collected and sandwiched and conveyed by the pair of first and second drag rollers 62 and 63 that are driven to rotate, and then the second drag roller that is driven and rotated. 64 and a plurality of wallis 65, and conveyed to the folding machine side.

  In other words, a plurality of webs W that are overlaid directly enter between a pair of first drag rollers 62 and 63 that are driven to rotate, and after being aggregated, are sandwiched between the two, thereby providing a conveying force. In addition, it enters between the second drag roller 64 and the wallis 65 and is sandwiched between the two, whereby a conveying force is applied. Therefore, in the first drag rollers 62 and 63, substantially the same conveying force is applied to the plurality of overlapped webs W and is sent to the second drag roller 64, and the second drag roller 64 and the wallis 65 are connected to each other. In the meantime, no tensile force acts on the web W and no slack occurs in the web W.

  At this time, a winding angle β for setting the web to be wound around the outer peripheral surface of the second drag roller 64 by a predetermined angle is set, and a plurality of webs W traveling in an overlapped manner are wound around the second drag roller 64 to be predetermined. Thus, the web W is stably conveyed.

  Furthermore, the control device 74 controls the drive motors 71 and 72 in accordance with the traveling state of the plurality of webs W, and adjusts the rotational speeds of the first drag rollers 62 and 63. That is, when a manufacturing error or assembly error of each first drag roller 62, 63 or wear of the outer peripheral surface occurs, the rotation speed of each first drag roller 62, 63 is adjusted by the control device 74, The peripheral speed is adjusted to be the same. Further, when the slack of the web W occurs between the first drag rollers 62 and 63 and the second drag roller 64, the rotational speed of each of the first drag rollers 62 and 63 is individually adjusted by the control device 74. Adjust the peripheral speed to be different.

  As described above, in the web conveyance device according to the second embodiment, the pair of first drag rollers 62 and 63 that are provided so as to be driven to rotate and aggregate and sandwich and convey the plurality of webs W, and the pair of first drag rollers. A second drag roller 64 is provided on the downstream side in the web conveyance direction from the drag rollers 62 and 63 so as to be driven to rotate and conveys a plurality of webs W, and a winding angle β for winding the web around the outer periphery of the second drag roller 64 by a predetermined angle. Is set.

  Accordingly, the plurality of webs W that have been printed and overlaid are gathered together by the first drag rollers 62 and 63 that are driven to rotate with each other, and are directly held and conveyed, and then the second drag roller 64 that is driven to rotate and the wallis. While being pinched by 65 and being wound around the second drag roller 64, a predetermined conveying force is applied and conveyed to the folding machine side, and the web W can be stably conveyed to the folding machine. .

  FIG. 5 is a schematic diagram illustrating a roll configuration in the web conveyance device according to the third embodiment of the present invention, and a perspective view illustrating the web conveyance device according to the second embodiment. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the third embodiment, as shown in FIGS. 5 and 6, the web conveyance device 20 includes a guide roller 21 that is rotatably supported and aggregates a plurality of webs W and guides the traveling, and the guide roller 21 provides a web. A pair of first drag rollers (first transport rollers) 22 and 23 that are provided on the downstream side in the transport direction so as to be driven to rotate and sandwich and transport a plurality of webs W, and the web from the pair of first drag rollers 22 and 23. It has the 2nd drag roller (2nd conveyance roller) 24 provided in the downstream of the conveyance direction so that driving rotation is possible and conveying the some web W. As shown in FIG.

  That is, on the most upstream side in the web conveyance direction, a guide roller 21 is provided that collects a plurality of webs W that are overlapped in a predetermined order by the above-described turn bar device and guides the travel thereof. A pair of first drag rollers 22 and 23 that sandwich and convey a plurality of webs W are provided downstream of the guide roller 21 in the web conveyance direction. A second drag roller 24 that transports a plurality of webs W is provided downstream of the first drag rollers 22 and 23 in the web transport direction. The second drag roller 24 faces the second drag roller 24. At the same time, a plurality of wallis 25 that sandwich the web W are provided.

  A triangular plate 26 for longitudinally folding the web W is provided downstream of the second drag roller 24 and wallis 25 in the web conveyance direction, and a pair of lead-in rollers 27 and 28 and a pair of nippins are provided below the plate. Growlers 29 and 30 are provided.

  The guide roller 21 is supported by a frame (not shown) so as to freely rotate. The guide roller 21 is brought into contact with the upper surface side of the web W having a plurality of outer peripheral surfaces overlapped to collect the plurality of webs W and guide the traveling thereof. Can do. The guide roller 21 has a winding angle α around which the web W is wound around the outer peripheral surface by a predetermined angle. Therefore, a plurality of webs W conveyed from the printing unit 12 and the turn bar device side travel while being in contact with the lower side of the guide rollers 21, so that the webs W are guided by the guide rollers 21 so that they are overlapped. The guide roller 21 rotates, that is, rotates along with the travel of the web W.

  The first drag roller 22 is rotatably supported by a frame (not shown) and contacts the upper surface side of the web W in which a plurality of outer peripheral surfaces are overlapped. On the other hand, the first drag roller 23 is rotatably supported by a frame (not shown) and comes into contact with the lower surface side of the web W in which a plurality of outer peripheral surfaces are overlapped. In this case, the first drag roller 23 is supported so as to be close to and away from the first drag roller 22, and the outer peripheral surface of the first drag roller 22 is pressed by a pressing device such as an air cylinder (or a spring member) (not shown). Can be pressed. Therefore, a plurality of webs W overlapped by the first drag roller 22 and the first drag roller 23 can be sandwiched and conveyed.

  Further, the second drag roller 24 is rotatably supported by a frame (not shown) and contacts the lower surface side of the web W in which a plurality of outer peripheral surfaces are overlapped. On the other hand, the plurality of wallis 25 are rotatably supported by a frame (not shown) and come into contact with the upper surface side of the web W in which a plurality of outer peripheral surfaces are overlapped. In this case, the wallis 25 is supported so as to be movable toward and away from the second drag roller 24, and the outer peripheral surface is pressed against the outer peripheral surface of the second drag roller 24 by a pressing device such as an air cylinder (or a spring member) (not shown). It is possible. Therefore, a plurality of webs W overlapped by the second drag roller 24 and the wallis 25 can be sandwiched and conveyed.

  The pair of first drag rollers 22 and 23 and the second drag roller 24 can be driven and rotated by independent drive systems, that is, separate drive motors 31, 32 and 33. Each drive motor 31, 32, 33 can be driven and controlled by the control device 34, and the control device 34 controls the rotation speed of each drive motor 31, 32, 33, thereby the first drag roller 22. , 23 and the second drag roller 24 can be adjusted. The first drag rollers 22 and 23 and the second drag roller 24 are made of a hard (metal) material, and the surface is subjected to processing for increasing frictional force (for example, electrodeposition coating of diamond powder). The web clamping force can be increased without wearing the surface, and a stable web clamping force can be maintained.

  Further, the conveyance path of the web conveyed from the guide roller 21 to the folding machine 15 side through the pair of first drag rollers 22, 23, the second drag roller 24, and the wallis 25 is set linearly.

  Accordingly, the plurality of webs W on which printing has been performed are overlapped in a predetermined order to reach the web conveyance device 20. In this web transport device 20, first, a plurality of overlapped webs W are collected by a guide roller 21, the travel of which is guided, and then sandwiched by a pair of first drag rollers 22 and 23 that are driven to rotate. Subsequently, the sheet is sandwiched between the second drag roller 24 and the plurality of wallis 25 that are driven to rotate, and is conveyed to the folding machine 15 side.

  That is, a plurality of overlapped webs W are collected and guided by the guide roller 21 that rotates together, and then enter between the pair of first drag rollers 22 and 23 that are driven to rotate with each other, and are sandwiched between the two. Thus, the conveyance force is applied, and subsequently, the conveyance force is applied by entering between the second drag roller 24 and the wallis 25 and being sandwiched between the two. Therefore, in the first drag rollers 22 and 23, substantially the same conveying force is applied to the plurality of webs W overlapped and sent to the second drag roller 24, and the second drag roller 24 and the wallis 25 In the meantime, no tensile force acts on the web W and no slack occurs in the web W.

  At this time, the web W conveyed from the guide roller 21 to the folding machine 15 through the first drag rollers 22, 23, the second drag roller 24, and the wallis 25 is also conveyed substantially linearly. The generation of the tensile force against the web and the occurrence of slack in the web W are prevented.

  Furthermore, the control device 34 controls the drive motors 31 and 32 in accordance with the traveling state of the plurality of webs W, and adjusts the rotational speeds of the first drag rollers 22 and 23. That is, when a manufacturing error or assembly error of each first drag roller 22, 23 or wear of the outer peripheral surface occurs, the rotation speed of each first drag roller 22, 23 is adjusted by the control device 34, The peripheral speed is adjusted to be the same. Further, when the slack of the web W occurs between the first drag rollers 22 and 23 and the second drag roller 24, the rotation speed of each of the first drag rollers 22 and 23 is individually adjusted by the control device 34. Adjust the peripheral speed to be different.

  As described above, in the web conveyance device according to the third embodiment, the plurality of webs W are aggregated and the traveling of the guide rollers 21 is guided, and the guide rollers 21 are provided on the downstream side in the web conveyance direction so as to be driven to rotate. The pair of first drag rollers 22, 23 that sandwich and transport the plurality of webs W, and the plurality of webs W provided so as to be driven to rotate downstream of the pair of first drag rollers 22, 23 in the web transport direction. The second drag roller 24 is provided.

  Accordingly, the plurality of webs W on which printing has been performed are gathered by the guide roller 21 and traveled while being guided to the pair of first drag rollers 22 and 23, and the first drag roller 22 that is driven and rotated by the drive motors 31 and 32. , 23 and then conveyed to the folding machine 15 side by the second drag roller 24 rotated by the drive motor 24 and the wallis 25, and the web W is driven and rotated with respect to each other. By being sandwiched between the first drag rollers 22 and 23 and imparting a transport force, the web W can be transported to the folding machine properly.

  Moreover, in the web conveyance apparatus of Example 3, the conveyance path | route of the web W conveyed to the folding machine 15 side from the guide roller 21 via the 1st drag rollers 22 and 23, the 2nd drag roller 24, and the wallis 25 is set to linear form. ing. Accordingly, the plurality of webs W that travel while being overlapped hardly generate a difference in travel speed, and the web W can be appropriately conveyed without being pulled or slackened.

  In the web conveyance device of the third embodiment, the first drag rollers 22 and 23 can be driven and rotated by independent drive motors 31 and 32, respectively, and can be adjusted and controlled by the control device 34. Therefore, when manufacturing errors or assembly errors occur in the first drag rollers 22 and 23, or wear occurs on the outer peripheral surface, the web W is loosened between the first drag rollers 22 and 23 and the second drag rollers 24. Even if it is a case, it becomes possible to make the peripheral speed appropriate by adjusting the rotational speed of each 1st drag roller 22 and 23 independently by the control apparatus 34, and always convey the web W appropriately. it can.

  In the web conveyance device according to the third embodiment, the winding angle α for winding the web W around the outer peripheral surface by a predetermined angle is set with respect to the guide roller 21 so that the plurality of webs W can be overlapped and guided, and the web W travels. It is possible to carry with you. Accordingly, the guide roller 21 can appropriately overlap the plurality of webs W and also guides and conveys the overlapped plurality of webs W by following the web W as it travels. be able to.

  FIG. 7 is a schematic diagram illustrating a roll configuration in the web conveyance device according to the fourth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the fourth embodiment, as shown in FIG. 7, the web conveyance device 41 aggregates a plurality of webs W and guides traveling, and can be driven to rotate downstream from the guide rollers 21 in the web conveyance direction. A pair of first drag rollers 22 and 23 sandwiching and transporting a plurality of webs W, and a plurality of first drag rollers 22 and 23 provided on the downstream side of the pair of first drag rollers 22 and 23 so as to be driven and rotated. The second drag roller 24 that conveys the web W is provided, and a winding angle β for winding the web W around the outer peripheral surface of the second drag roller 24 by a predetermined angle is set.

  Accordingly, the plurality of webs W on which printing has been performed are overlapped in a predetermined order and reach the web conveyance device 41. In this web transport device 41, first, a plurality of overlapped webs W are collected by the guide roller 21 and the travel thereof is guided, and then sandwiched by the pair of first drag rollers 22 and 23 that are driven to rotate. Subsequently, the sheet is sandwiched between the second drag roller 24 and the plurality of wallis 25 that are driven to rotate and conveyed to the folder side.

  That is, the plurality of webs W overlapped are collected and guided by the guide roller 21 that rotates together, and then enter between the pair of first drag rollers 22 and 23 that are driven to rotate with each other, and are sandwiched between the two. Then, a conveyance force is applied, and subsequently, the conveyance force is applied by entering between the second drag roller 24 and the wallis 25 and being sandwiched between them. Therefore, in the first drag rollers 22 and 23, substantially the same conveying force is applied to the plurality of webs W overlapped and sent to the second drag roller 24, and the second drag roller 24 and the wallis 25 In the meantime, no tensile force acts on the web W and no slack occurs in the web W.

  At this time, a winding angle β is set to wind the web around the outer peripheral surface of the second drag roller 24 by a predetermined angle, and a plurality of webs W that are overlapped and travel are wound around the second drag roller 24 to be predetermined. Thus, the web W is stably conveyed.

  As described above, in the web conveyance device according to the fourth embodiment, the plurality of webs W are aggregated and the travel is guided, and the guide roller 21 is provided on the downstream side in the web conveyance direction so as to be driven to rotate. The pair of first drag rollers 22, 23 that sandwich and transport the plurality of webs W, and the plurality of webs W provided so as to be driven to rotate downstream of the pair of first drag rollers 22, 23 in the web transport direction. The second drag roller 24 is provided, and a winding angle β for winding the web around the outer peripheral surface of the second drag roller 24 by a predetermined angle is set.

  Accordingly, the plurality of webs W that have been printed and overlaid are gathered by the guide roller 21, and then sandwiched by the first drag rollers 22 and 23 that are driven to rotate to each other, thereby providing a conveying force, thereby stabilizing the web. Then, the web W can be stably conveyed by being fed to the second drag roller 24 and being wound around the second drag roller 24 and given a predetermined conveying force.

  FIG. 8 is a schematic diagram illustrating a roll configuration in the web conveyance device according to the fifth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the member which has the same function as what was demonstrated in the Example mentioned above, and the overlapping description is abbreviate | omitted.

  In the fifth embodiment, as shown in FIG. 8, the web conveyance device 51 aggregates a plurality of webs W and guides the traveling thereof, and the drive rotation to the downstream side in the web conveyance direction from the guide rollers 21. A pair of first drag rollers 22, 23 that are provided so as to sandwich and convey a plurality of webs W, and a plurality of the first drag rollers 22, 23 that are provided on the downstream side of the pair of first drag rollers 22, 23 so as to be driven to rotate. And a second drag roller 24 that conveys the web W, and a winding angle θ for winding the web W around the outer peripheral surface of one of the first drag rollers 23 by a predetermined angle is set.

  Accordingly, the printed web W is superposed in a predetermined order and reaches the web conveyance device 51. In the web transport device 51, first, the overlapped webs W are translated into male and female by the guide roller 21 and the travel thereof is guided, and then sandwiched by the pair of first drag rollers 22 and 23 that are driven to rotate. Then, it is nipped by the second drag roller 24 and the plurality of wallis 25 that are driven to rotate and conveyed to the folding machine side.

  That is, a plurality of overlapped webs W are collected and guided by the guide roller 21 that rotates together, and then enter between the pair of first drag rollers 22 and 23 that are driven to rotate with each other, and are sandwiched between the two. Thus, the conveyance force is applied, and subsequently, the conveyance force is applied by entering between the second drag roller 24 and the wallis 25 and being sandwiched between the two. Therefore, in the first drag rollers 22 and 23, substantially the same conveying force is applied to the plurality of webs W overlapped and sent to the second drag roller 24, and the second drag roller 24 and the wallis 25 In the meantime, no tensile force acts on the web W and no slack occurs in the web W.

  Further, at this time, the winding angle θ for winding the web around the outer peripheral surface of the first drag roller 23 is set, and a plurality of webs W traveling in a superimposed manner are wound around the first drag roller 23 to be predetermined. The web W is stably conveyed, and then conveyed to the folding machine side by the second drag roller 24 that is driven to rotate, thereby suppressing the web W from being pulled or loosened. Can be transported properly.

  As described above, in the web conveyance device according to the fifth embodiment, the plurality of webs W are aggregated, and the guide roller 21 that guides the traveling of the webs W is provided, and the guide roller 21 is provided on the downstream side in the web conveyance direction so as to be rotatable. The pair of first drag rollers 22, 23 that sandwich and transport the plurality of webs W, and the plurality of webs W provided so as to be driven to rotate downstream of the pair of first drag rollers 22, 23 in the web transport direction. The second drag roller 24 is provided, and a winding angle θ for winding the web around the outer peripheral surface of the first drag roller 23 by a predetermined angle is set.

  Accordingly, the plurality of webs W that have been printed and overlaid are gathered by the guide roller 21 and then sandwiched between the first drag rollers 22 and 23 that are driven to rotate with each other, and are wound around the outer peripheral surface of the first drag roller 23. Thus, a predetermined conveyance force is applied, and the web W can be stably conveyed.

  In each of the above-described embodiments, the second drag rollers 24 and 64 can be driven and rotated by the independent drive motors 33 and 73, but the drive motors 31, 32, and 63 that drive the first drag rollers 22, 23, 62, and 63, respectively. The driving may be performed by either one of 71 and 72.

  The web conveyance device and the rotary printing press according to the present invention can convey the web appropriately to the folding machine by applying a stable conveyance force to the printed web. The present invention can also be applied to a web conveyance device or a rotary printing press.

It is the schematic showing the roll structure in the web conveyance apparatus which concerns on Example 1 of this invention. 1 is a perspective view illustrating a web conveyance device according to a first embodiment. It is the schematic showing the offset rotary printing press for newspapers to which the web conveyance apparatus of Example 1 was applied. It is the schematic showing the roll structure in the web conveyance apparatus which concerns on Example 2 of this invention. It is a perspective view showing the web conveyance apparatus of Example 2. FIG. It is the schematic showing the roll structure in the web conveyance apparatus which concerns on Example 3 of this invention. It is the schematic showing the roll structure in the web conveyance apparatus which concerns on Example 4 of this invention. It is the schematic showing the roll structure in the web conveyance apparatus which concerns on Example 5 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Paper feeder 12 Printing unit 13 Turn bar apparatus 14, 20, 41, 51, 81 Web conveyance apparatus 15 Folding machine 21 Guide roller 22, 23, 62, 63 1st drag roller (1st conveyance roller)
24, 64 Second drag roller (second transport roller)
25, 65 Wallis 31, 32, 33, 71, 72, 73 Drive motor (drive means)
34, 74 Control device (control means)
W Web

Claims (13)

In a web transport device that transports a plurality of printed webs to a folding machine,
A pair of first conveying rollers provided so as to be capable of driving rotation, and a plurality of webs are aggregated and nipped and conveyed;
A second conveying roller that is rotatably provided downstream of the pair of first conveying rollers in the web conveying direction and conveys a plurality of webs;
A web conveyance device comprising:   2. The web conveyance device according to claim 1, wherein a wrapping angle for winding the web around a predetermined angle around one of the pair of first conveyance rollers is set.   3. The web conveyance device according to claim 1, wherein a conveyance path of a web conveyed from the pair of first conveyance rollers to the folding machine side through the second conveyance roller is set linearly. .   The web conveyance device according to claim 1 or 2, wherein a winding angle for winding the web around the outer peripheral surface of the second conveyance roller by a predetermined angle is set.   Drive means capable of independently driving the pair of first transport rollers, and control means capable of adjusting and controlling the rotational speeds of the pair of first transport rollers by the drive means in accordance with the transport states of a plurality of webs; 5. The web conveyance device according to claim 1, wherein the web conveyance device is provided. In a web transport device that transports a plurality of printed webs to a folding machine,
A guide roller that is rotatably provided and aggregates a plurality of webs and guides traveling;
A pair of first conveying rollers provided to be driven and rotated downstream of the guide rollers in the web conveying direction and sandwiching and conveying a plurality of webs;
A second conveying roller that is rotatably provided downstream of the pair of first conveying rollers in the web conveying direction and conveys a plurality of webs;
A web conveyance device comprising:   The web conveyance device according to claim 6, wherein the guide roller has a winding angle for winding the web around the outer peripheral surface by a predetermined angle.   The conveyance path of the web conveyed to the folding machine side from the guide roller through the pair of first conveyance rollers and the second conveyance rollers is set linearly. Web transport device.   The web conveyance device according to claim 6 or 7, wherein a winding angle for winding the web around the outer peripheral surface of the second conveyance roller by a predetermined angle is set.   The web conveyance device according to any one of claims 6 to 9, wherein a winding angle for winding the web around a predetermined angle around one of the pair of first conveyance rollers is set.   Drive means capable of independently driving the pair of first transport rollers, and control means capable of adjusting and controlling the rotational speeds of the pair of first transport rollers by the drive means in accordance with the transport states of a plurality of webs; The web conveyance device according to claim 6, further comprising: A paper feeding device for feeding a web from a web,
A printing unit for printing on the web fed from the paper feeding device;
A folding machine that forms a folded book by overlapping and cutting a plurality of webs printed by the printing unit;
In a rotary printing press comprising a web transport device that stacks and transports a plurality of webs printed by the printing unit to the folding machine,
The web conveying device is
A pair of first conveying rollers provided so as to be capable of driving rotation, and a plurality of webs are aggregated and nipped and conveyed;
A second conveying roller that is rotatably provided downstream of the pair of first conveying rollers in the web conveying direction and conveys a plurality of webs;
A rotary printing press characterized by comprising: A paper feeding device for feeding a web from a web,
A printing unit for printing on the web fed from the paper feeding device;
A folding machine that forms a folded book by overlapping and cutting a plurality of webs printed by the printing unit;
In a rotary printing press comprising a web transport device that stacks and transports a plurality of webs printed by the printing unit to the folding machine,
The web conveying device is
A guide roller that is rotatably provided and aggregates a plurality of webs and guides traveling;
A pair of first conveying rollers provided to be driven and rotated downstream of the guide rollers in the web conveying direction and sandwiching and conveying a plurality of webs;
A second conveying roller that is rotatably provided downstream of the pair of first conveying rollers in the web conveying direction and conveys a plurality of webs;
A rotary printing press characterized by comprising:

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