JP2018024123A - Printed matter conveyance device and printed matter conveyance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed matter conveyance device and a printed matter conveyance method which can automatically carry out phase adjustment of images of vertically overlapped printed matters.SOLUTION: First detection units 86, 89 detect a first index provided in a first printed matter on which a first image is printed. Second detection units 87, 89 detect a second index provided in a second printed matter on which a second image is printed. Phase adjustment units 85, 89 adjust relative phases of the first image and the second image based on a first mark detected by the first detection units 86, 89 and a second mark detected by the second detection units 87, 89 so that phases of the first image and the second image are aligned in a state where the first printed matter and the second printed matter are arranged vertically.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a printed material conveying apparatus and a printed material conveying method.

  Conventionally, offset rotary printing presses that perform offset printing using a web, that is, a web, have been provided with a folding machine that performs a former folding of the web after printing. The folding machine includes a slitter that divides the web after printing into two in the width direction, and a turn bar that changes the conveyance direction of one web so that one of the divided webs is vertically opposed to the other web. And a triangular plate that overlaps two webs arranged opposite to each other and bends along the conveying direction. Further, the offset rotary printing press includes a cutting unit that cuts two overlapping webs after folding the former into a booklet (see Patent Document 1).

JP 2008-13320 A

  In order to cut two overlapping webs after the former is folded together, it is required that the two webs stacked one above the other have the same pattern phase, that is, the position in the transport direction. However, conventionally, adjustment work for adjusting the phase of the pattern has to be performed manually.

  The problem to be solved by the present invention is to provide a printed material conveying apparatus and a printed material conveying method capable of automatically and accurately performing phase adjustment of images between printed materials stacked one above the other.

In order to solve the above problems, in one embodiment of the present invention,
A first detection unit for detecting a first index provided on the first printed matter on which the first image is printed;
A second detection unit for detecting a second index provided on the second printed matter on which the second image is printed;
Based on the first mark detected by the first detector and the second mark detected by the second detector, the first printed matter and the second printed matter are arranged in an up-and-down state. There is provided a printed material transport apparatus including a phase adjustment unit that adjusts a relative phase between the first image and the second image so that the phases of the first image and the second image are aligned.

The phase adjusting unit is
A compensator roller disposed on the transport path of the second printed material so as to be movable in a direction intersecting the transport direction and the width direction of the second printed material;
Based on the detected first index and the detected second index, a positional deviation amount in the transport direction between the first image and the second image arranged above and below is detected, and the detected And a controller that moves the compensator roller in accordance with the amount of displacement.

  It is arranged upstream of the compensator roller in the conveying direction, and changes the conveying direction of the second printed material so that the second printed material and the first printed material are arranged vertically, and in the width direction of the second printed material. You may provide the turn bar which adjusts a position.

  The control unit detects a positional deviation amount in the width direction between the first image and the second image arranged above and below based on the detected first index and the detected second index, The second printed matter may be moved in the width direction by the turn bar in accordance with the detected displacement amount.

  You may provide the slitter arrange | positioned in the conveyance direction back upstream rather than the said turn bar, and cuts a paper into the said 1st printed matter and the said 2nd printed matter.

The first detection unit includes a first imaging unit that images the first index downstream in the transport direction from the compensator roller.
The second detection unit may include a second imaging unit that captures the second index downstream in the transport direction from the compensator roller.

In a state where the first printed matter and the second printed matter are arranged vertically, the first index and the second index are arranged at positions shifted in the vertical direction and the width direction,
The first imaging unit and the second imaging unit may be arranged at positions shifted in the vertical direction and the width direction so as to face the first index and the second index, respectively.

  A triangular plate that is disposed downstream of the first detection unit and the second detection unit in the transport direction, and bends at a predetermined position in the width direction in a state where the first printed product and the second printed product are superposed vertically; May be.

In one embodiment of the present invention,
Detecting a first index provided on the first printed matter on which the first image is printed;
Detecting a second index provided on the second printed matter on which the second image is printed;
Based on the detected first mark and the detected second mark, the phases of the first image and the second image in a state where the first printed material and the second printed material are arranged vertically. There is provided a printed material transport method for adjusting a relative phase between the first image and the second image so as to be aligned.

The first index is provided on the conveyance direction side of the first printed matter with respect to the first image,
The second index may be provided on a transport direction side of the second printed matter with respect to the second image.

  According to the present invention, it is possible to automatically and accurately adjust the phase of images between printed materials stacked one above the other.

The side view which shows the offset rotary printing press by this embodiment. The top view which shows the web printed with the offset rotary printing press by this embodiment. The top view which shows the folding machine of the offset rotary printing press by this embodiment. The figure which shows the 1st specific example of the phase adjustment part of the offset rotary printing press by this embodiment. The figure which shows the 2nd specific example of the phase adjustment part of the offset rotary printing press by this embodiment. The figure which shows alignment of the edge part of a web in the operation example of the offset rotary printing press by this embodiment. The figure which shows the phase alignment of a pattern in the operation example of the offset rotary printing press by this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments do not limit the present invention.

  FIG. 1 is a side view showing an offset rotary printing press 1 according to this embodiment. As shown in FIG. 1, an offset rotary printing press 1 according to this embodiment includes a paper feeding unit 3, an infeed unit 4, a printing unit 5, and a drying furnace 6 in order from the upstream side in the conveyance direction of the web W. A cooling unit 7 and a folding machine 8 which is an example of a printed material conveying apparatus are provided.

  The paper feed unit 3 supplies a web W such as paper or film downstream along the transport direction D1. The paper feed unit 3 has a reel stand (not shown) on which a first web roll 31 used first and a second web roll 32 used later are mounted. By connecting the first web roll 31 and the second web roll 32 during printing, the paper feed unit 3 can continuously supply the web W.

  The infeed unit 4 includes an infeed roller 41 that is driven to rotate, and a dancer roller 42 that is movable in the direction of arrow A in FIG. The infeed unit 4 applies a tension corresponding to the rotational speed of the infeed roller 41 and the position of the dancer roller 42 to the web W supplied from the sheet feeding unit 3.

  A plurality of printing units 5 are arranged at intervals in the transport direction D1. In the example of FIG. 1, four printing units 5 corresponding to four colors of black, cyan, magenta, and yellow are arranged. Each printing unit 5 includes a pair of upper and lower plate cylinders 51 and a pair of upper and lower blanket cylinders 52 that abut each of the plate cylinders 51. A plate (not shown) is attached to the outer peripheral surface of the plate cylinder 51. The plate is supplied with ink for forming an image from an ink fountain (not shown), and fountain solution for moistening the plate so that ink does not adhere to the non-image area from a water boat (not shown). The Thereby, an image is formed on the plate. A blanket (not shown) is attached to the outer peripheral surface of the blanket cylinder 52. The plate cylinder 51 transfers the image formed on the plate to the blanket of the blanket cylinder 52 that is in contact with the plate cylinder 51. The blanket cylinder 52 performs printing on the web W by transferring the image transferred to the blanket to the web W. In the example of FIG. 1, since the pair of upper and lower plate cylinders 51 and the blanket cylinder 52 are arranged with the web W interposed therebetween, printing can be performed on both sides of the web W at the same time.

  The drying furnace 6 heats and drys the web W printed by the printing unit 5.

  The cooling unit 7 cools the web 2 heated in the drying furnace 6 to a necessary temperature. The cooling unit 7 includes a web guide 71 and a web guide sensor 72. FIG. 2 is a plan view showing the web W printed by the offset rotary printing press 1 according to the present embodiment. FIG. 2 shows the web W that has passed through the web guide sensor 72. As shown in FIG. 2, two web guide sensors 72 are provided so as to face both ends of the web W in the width direction D <b> 2. The web guide sensor 72 detects the positions of both end portions of the web W in the width direction D2 by detecting register marks (not shown) provided in the vicinity of both end portions of the web W in the width direction D2, for example. For example, the web guide sensor 72 may have a camera that captures a registration mark. The web guide 71 adjusts its angle and position according to the positions of both end portions in the width direction D2 of the web W detected by the web guide sensor 72 by an actuator (not shown). By adjusting the angle and position of the web guide 71, the positions of both ends of the web W in the width direction D2 can be adjusted so that the former folding positions P_1 and P_2 of the web W match the positions of a triangular plate 88 described later.

(First mark M1, second mark M2)
Here, as shown in FIG. 2, a plurality of first pictures P <b> 1 that are examples of a plurality of first images periodically on the web W along the conveyance direction D <b> 1 by the printing unit 5 (see FIG. 7 described later). Is printed. The web W is provided with a plurality of first marks M1 corresponding to each of the plurality of first pictures P1 as an example of the first index at the same cycle as the first picture P along the transport direction D1. Yes. Each first mark M1 is arranged on the transport direction D1 side with respect to the first pattern P1. More specifically, each first mark M1 is provided in a margin between the first patterns P1 adjacent in the transport direction D1. The first mark M1 may be printed by the printing unit 5.

  In addition, as shown in FIG. 2, the web W on the side in the width direction D2 with respect to the first pattern P1 is a plurality of examples of a plurality of second images at the same cycle as the first pattern P1 along the transport direction D1. The second picture P2 is printed. The second picture P2 is printed at the same position and the same range in the transport direction D1 with respect to the first picture P1. The second design P2 may be the same design as the first design P1. Further, the web W on the width direction D2 side with respect to the first pattern P1 has a plurality of second indexes as an example of the second index at the same cycle as the second pattern P2 and the first mark M1 along the transport direction D1. A plurality of second marks M2 corresponding to each of the patterns P2 are provided. Each second mark M2 is arranged on the transport direction D1 side with respect to the second pattern P. More specifically, each 2nd mark M2 is provided in the margin between adjacent 2nd pattern P2. Moreover, the 2nd pattern P2 is provided in the same position of the conveyance direction D1 with respect to the 1st pattern P1. The second mark M2 may be printed by the printing unit 5. As will be described later, the first mark M1 and the second mark M2 are used for position alignment of the end portions of the first web W1 and the second web W2 and phase alignment of the patterns P1 and P2.

(Folding machine 8)
FIG. 3 is a plan view showing the folding machine 8 of the offset rotary printing press 1 according to the present embodiment. As shown in FIGS. 1 and 3, the folding machine 8 includes a slitter 81, a first turn bar 82, a guide roller 83, a second turn bar 84, a compensator roller 85, and a first photographing unit in order from the upstream side. 86 and the second imaging unit 87, a triangular plate 88, and a cutting unit 800. The folding machine 8 includes a control unit 89, a moving device 810 for the second turn bar 84, and a moving device 820 for the compensator roller 85. The compensator roller 85 constitutes a phase adjustment unit together with the moving device 820 and the control unit 89. The first imaging unit 86 constitutes a first detection unit together with the control unit 89. The second imaging unit 87 constitutes a second detection unit together with the control unit 89.

(Slitter 81)
The slitter 81 includes, for example, a round blade cutter that can rotate around a rotation axis parallel to the width direction D2, and a driving device such as a motor that rotationally drives the round blade cutter. The slitter 81 divides the web W conveyed from the cooling unit 7 into a first web W1 that is an example of the first printed material and a second web W2 that is an example of the second printed material. The divided second web W2 proceeds to the downstream side of the second turn bar 84. That is, the slitter 81 separates the first web W1 and the second web W2 from each other upstream of the turn bar 84. The first web W1 is a portion of the web W where the first pattern P1 is printed. The second web W2 is a portion of the web W where the second pattern P2 is printed. In FIG. 2, the cutting position P_3 of the web W by the slitter 81 is shown. In the example of FIG. 2, the cutting position P_3 of the web W by the slitter 81 is the center position of the web W in the width direction D2.

(Turn bar 84)
The first turn bar 82 is rotatably disposed on the transport path of the second web W2. The first turn bar 82 has an inclination angle of 45 ° with respect to the conveyance direction D1 of the second web W2 from the slitter 81. The first turn bar 82 changes the conveyance direction D1 by 90 ° with respect to the second web W2 upstream thereof, and reverses the front and back. And the 1st turn bar 82 advances the 2nd web W2 to the outward of the width direction D2 spaced apart from the 1st web W1.

  The guide roller 83 is rotatably disposed on the conveyance path of the second web W2 downstream of the first turn bar 82. The guide roller 83 reverses the conveyance direction D1 and reverses the front and back of the second web W2 conveyed from the first turn bar 82. Then, the guide roller 83 advances the second web W2 inward in the width direction D2 close to the first web W1.

  The second turn bar 84 is disposed on the conveyance path of the second web W2 downstream of the guide roller 83 so as to be rotatable and movable in the width direction D2. The second turn bar 84 faces the conveyance path of the first web W1 in the upper part. The second turn bar 84 has an inclination angle of 45 ° with respect to the conveyance direction D1 of the second web W2 from the guide roller 83. The second turn bar 84 changes the conveyance direction D1 by 90 ° and reverses the front and back with respect to the second web W2 conveyed from the guide roller 83. The second web W2 faces the first web W1 by changing the transport direction D1. And the 2nd turn bar 84 advances the 2nd web W2 toward the compensator roller 85 of the downstream, making the 2nd web W2 oppose the 1st web W1. That is, the second turn bar 84 is arranged on the conveyance path of the second web W2 upstream in the conveyance direction of the compensator roller 85, and the second web W2 is arranged so that the second web W2 and the first web W1 are arranged vertically. The conveyance direction D1 is changed.

  The moving device 810 can move the second turn bar 84 in the width direction D2 based on the transport direction D1 after the conversion by the second turn bar 84. The moving device 810 includes, for example, a frame that holds the second turn bar 84, a guide rail that supports the frame so as to be movable in the width direction D2, and a frame that receives the rotational force of the motor in the width direction D2 together with the second turn bar 84. A moving ball screw may be included.

  As the second turn bar 84 moves in the width direction D2, the second web W2 wound around the second turn bar 84 also moves in the width direction D2. Thereby, the position of the edge part of the width direction D2 of the 2nd web W2 can be adjusted.

(Compensator roller 85)
The compensator roller 85 is disposed on the transport path of the second web W2 downstream of the second turn bar 84 so as to be rotatable and movable in the direction D3 of FIG. 1 orthogonal to or intersecting the transport direction D1 and the width direction D2. Hereinafter, the direction D3 is also referred to as a movement direction D3.

  The moving device 820 can move the compensator roller 85 in the moving direction D3.

  FIG. 4 is a diagram illustrating a first specific example of the phase adjustment unit of the offset rotary printing press 1 according to the present embodiment. In the example of FIG. 4, the moving device 820 includes a holding unit 821 that holds one end of the compensator roller 85, a ball screw 822 that is connected to the holding unit 821 and has an axial direction parallel to the moving direction D3, and a ball screw 822. And a connected motor 823. Note that the holding portion 821 may be configured by a nut of the ball screw 822. The moving device 820 in FIG. 4 converts the rotational motion of the motor 823 into a linear motion in the moving direction D3 by the ball screw 822, so that the holding portion 821 connected to the ball screw 822 is moved in the moving direction D3 together with the compensator roller 85. I can move.

  FIG. 5 is a diagram illustrating a second specific example of the phase adjustment unit of the offset rotary printing press 1 according to the present embodiment. In the example of FIG. 5, the moving device 820 includes a holding unit 825 that holds one end of the compensator roller 85, an arm 826 that is rotatably supported in the moving direction D <b> 3 at one end, and is connected to the holding unit 825 at the other end. A ball screw 827 that vertically contacts the arm 826 and a motor 828 coupled to the ball screw 827 are provided. The moving device 820 in FIG. 5 converts the rotational motion of the motor 828 into a linear motion by the ball screw 827, and rotates the arm 826 in the moving direction D3 by the contact of the ball screw 827 that moves linearly. Accordingly, the holding portion 825 coupled to the arm 826 can move in the movement direction D3 together with the compensator roller 85.

  When the compensator roller 85 moves in the moving direction D3, the path length of the transport path of the second web W2 is changed. By changing the path length, it is possible to adjust the phase of the second pattern P2, which is the position in the transport direction of the second pattern P2 that passes through the second imaging unit 87 described later.

(First shooting unit 86)
The first imaging unit 86 faces the conveyance path of the first web W1 from below. The 1st imaging | photography part 86 image | photographs the some 1st mark M1 in order with conveyance of the 1st web W1. More specifically, the 1st imaging | photography part 86 image | photographs the 1st web W1 of the position which the 1st imaging | photography part 86 opposes continuously from the conveyance start of the 1st web W1 to the completion | finish of conveyance. In the process of photographing the first web W1, the first mark M1 is intermittently photographed. The first photographing unit 86 outputs the photographed video to the control unit 89.

  The first imaging unit 86 images the first mark M1 at a position that is the same in the transport direction D1 and shifted in the width direction D2 with respect to the second imaging unit 87. Since the first imaging unit 86 is disposed at the same position in the transport direction D1 with respect to the second imaging unit 87, the phase difference between the first picture P1 and the second picture P2 described later can be easily calculated. In addition, since the first imaging unit 86 is disposed at a position shifted in the width direction D2 with respect to the second imaging unit 87, erroneous detection of the first mark M1 and the second mark M2 can be prevented.

(Second photographing unit 87)
The second photographing unit 87 faces the conveyance path of the second web W2 downstream of the compensator roller 85 from above. The second photographing unit 87 photographs a plurality of second marks M in order as the second web W2 is conveyed downstream of the compensator roller 85. More specifically, the 2nd imaging | photography part 87 image | photographs the 2nd web W2 of the position which the 2nd imaging | photography part 87 opposes continuously from the conveyance start of the 2nd web W2 to the completion | finish of conveyance. In the process of photographing the second web W2, the second mark M2 is intermittently photographed. The second photographing unit 87 outputs the photographed video to the control unit 89.

(Triangle plate 88)
The triangular plate 88 is disposed on the conveyance path of the first web W1 and the second web W2 downstream of the first photographing unit 86 and the second photographing unit 87. The triangular plate 88 is bent in parallel with the conveyance direction D1 in a state where the first web W1 and the second web W2 are overlapped with each other at center positions P_1 and P_2 in the width direction D2, which is an example of a predetermined position in the width direction D2. . That is, the triangular plate 88 performs former folding on the first web W1 and the second web W2.

  The cutting unit 800 is disposed on the conveyance path of the first web W1 and the second web W2 downstream of the triangular plate 88. The cutting unit 800 cuts the first web W1 and the second web W2 after the former folding in units of the patterns P1 and P2.

(Control unit 89)
The control unit 89 as the first detection unit is based on the captured video output from the first imaging unit 86, and a plurality of first marks M1 provided on the first web W1 in order as the first web W1 is conveyed. Is detected. For example, the control unit 89 detects the first mark M1 by image recognition.

  The control unit 89 as the second detection unit is based on the captured video output from the second imaging unit 87, and a plurality of second marks M2 provided on the second web W2 in order as the second web W2 is conveyed. Is detected. For example, the control unit 89 detects the second mark M2 by image recognition.

  Based on the detected first mark M1 and the detected second mark M2, the control unit 89 has an end portion in the width direction D2 of the first web W1, and an end portion in the width direction D2 of the second web W2. The difference between the positions of is calculated. The control unit 89 controls the moving device 810 to move the second turn bar 84 with a moving amount that eliminates, or reduces, the calculated position difference.

  Based on the detected first mark M1 and the detected second mark M2, the control unit 89 as the phase adjustment unit places the first web W1 and the second web W2 on the top and bottom of the first web. The relative phases of the two patterns P1, P2 are adjusted so that the phases of the first pattern P1 printed on W1 and the second pattern P2 printed on the second web W2 are aligned. Specifically, the control unit 89, based on the detected first mark M1 and the detected second mark M2, determines the amount of displacement in the transport direction of the first pattern P1 and the second pattern P2, that is, the phase. Calculate the difference. The control unit 89 controls the moving device 820 to move the compensator roller 85 with a movement amount that eliminates, that is, reduces, the calculated displacement amount in the conveyance direction.

(Operation example)
Next, an operation example of the rotary offset printing press 1 configured as described above will be described. In this operation example, the paper feeding unit 3 unwinds the web W from the first web roll 31 or the second web roll 32 and supplies it to the downstream infeed unit 4. The infeed unit 4 applies tension to the web W supplied from the sheet feeding unit 3. Each printing unit 5 sequentially prints on the web W to which tension is applied by the infeed unit 4, and conveys the printed web W to the downstream drying furnace 6. The drying furnace 6 heats and drys the web W conveyed from the printing unit 5. The dried web W is cooled by the cooling unit 7 and then passes through the web guide 71.

  The web guide sensor 72 detects the positions of both ends in the width direction D2 of the web W that has passed through the web guide 71. The control unit 89 may detect the positions of both ends of the web W in the width direction D2 based on a detection signal of the web guide sensor 72 such as a captured video. The web guide 71 has its own angle so that the former folding positions P_1 and P_2 of the web W are aligned with the position of the triangular plate 88 according to the positions of both ends of the web W in the width direction D2 detected by the web guide sensor 72. Adjust the position.

  The web W that has passed through the web guide 71 is supplied to the slitter 81 of the folding machine 8. The slitter 81 divides the supplied web W into the first web W1 and the second web W2 at the cutting position P_3.

  The first web W <b> 1 is separated from the second web W <b> 2 and then conveyed by the conveyance roller 803 so as to be substantially horizontal at substantially the same height as the upper end of the triangular plate 88. Then, the first web W1 that has passed through the conveyance roller 803 passes above the first imaging unit 86. The first photographing unit 86 continuously photographs the first web W <b> 1 facing the first photographing unit 86. In the process, the first photographing unit 86 photographs a plurality of first marks M1 in order as the first web W1 is conveyed. The first photographing unit 86 sequentially outputs the photographed video to the control unit 89.

  On the other hand, the second web W2 reaches the first turn bar 82 after being separated from the first web W1. The first turn bar 82 changes the conveyance direction D1 by 90 ° and reverses the front and back with respect to the reached second web W2. And the 1st turn bar 82 advances the 2nd web W2 to the outward of the width direction D2 spaced apart from the 1st web W1.

  The second web W <b> 2 whose transport direction D <b> 1 has been changed by the first turn bar 82 reaches the guide roller 83. The guide roller 83 reverses the conveyance direction D1 and reverses the front and back with respect to the reached second web W2. Then, the guide roller 83 advances the second web W2 inward in the width direction D2 close to the first web W1.

  The second web W <b> 2 that has passed through the guide roller 83 reaches the second turn bar 84. The second turn bar 84 changes the conveyance direction D1 by 90 ° and reverses the front and back with respect to the reached second web W2. By changing the conveyance direction D1, the first web W1 and the second web W2 face each other vertically. And the 2nd turn bar 84 advances the 2nd web W2 toward the compensator roller 85 of the downstream, making the 2nd web W2 oppose the 1st web W1.

  After passing through the compensator roller 85, the second web W2 is transported by the transport roller 804 so as to be substantially horizontal at substantially the same height as the upper end of the triangular plate 88. Accordingly, the second web W2 overlaps the first web W1 from above. Then, the second web W <b> 2 that has passed through the conveying roller 804 passes below the second imaging unit 87. The second photographing unit 87 continuously photographs the second web W2 facing the second photographing unit 87. In the process, the second photographing unit 87 photographs a plurality of second marks M2 in order as the second web W2 is conveyed. The second photographing unit 87 sequentially outputs the photographed video to the control unit 89.

  FIG. 6 is a diagram illustrating alignment of the edge of the web in the operation example of the offset rotary printing press 1 according to the present embodiment. After the photographed video is output from the first photographing unit 86, the control unit 89 detects the plurality of first marks M1 in order based on the photographed video from the first photographing unit 86. After the captured video is output from the second imaging unit 87, the control unit 89 detects the plurality of second marks M2 in order based on the captured video from the second imaging unit 87. At this time, the first mark M1 and the second mark M2 are provided not on the width direction D2 side but on the transport direction D1 side with respect to the patterns P1 and P2. Accordingly, the control unit 89 can reliably detect the first mark M1 and the second mark M2 even when the first web W1 and the second web W2 are extended or shortened in the width direction D2.

  In addition, as shown in FIG. 3, in the state where the first web W1 and the second web W2 are vertically arranged by the second turn bar 84, the first mark M1 and the second mark M2 are in the vertical direction and the width direction D2. It is arranged at a shifted position. The first imaging unit 86 and the second imaging unit 87 are arranged at positions shifted in the vertical direction and the width direction D2 so as to face the first mark M1 and the second mark M2, respectively. Thereby, the erroneous detection which detects one of the 1st mark M1 and the 2nd mark M2 as the other can be prevented.

  After detecting the first mark M1 and the second mark M2, the control unit 89, as shown in FIG. 6, based on the detected first mark M1 and the detected second mark M2, the first web W1. The difference d1 of the position of the edge part of the width direction D2 of this and the edge part of the width direction D2 of the 2nd web W2 is calculated. The control unit 89 performs control to move the second turn bar 84 to the moving device 810 with a moving amount that eliminates the calculated position difference d1. Thereby, alignment with the edge part of the width direction D2 of the 1st web W1 and the edge part of the width direction D2 of the 2nd web W2 can be performed simply and appropriately.

  FIG. 7 is a diagram showing pattern phasing in the operation example of the offset rotary printing press 1 according to the present embodiment. Based on the detected first mark M1 and the detected second mark M2, the control unit 89 shifts the positional deviation amount d2 between the first pattern P1 and the second pattern P2 in the transport direction as shown in FIG. Is calculated. In FIG. 7, the first web W1 and the second web W2 are shown side by side for easy understanding of the positional deviation amount d2 in the transport direction.

  The calculation method of the positional deviation amount d2 in the transport direction is not particularly limited. For example, since the first imaging unit 86 and the second imaging unit 87 are arranged at the same position in the transport direction, when there is no positional deviation amount d2 in the transport direction, the first mark M1 and the second mark M2 Can be detected at the same time. Therefore, the control unit 89 may simply calculate the difference between the detection time of the first mark M1 and the detection time of the second mark M2 as the positional deviation amount d2 in the transport direction.

  The control unit 89 controls the moving device 820 to move the compensator roller 85 with the movement amount that eliminates the calculated positional deviation amount d2 in the conveyance direction. Thereby, phase alignment with the 1st picture P1 and the 2nd picture P2 can be performed simply and appropriately.

  The first web W1 that has passed through the first photographing unit 86 and the second web W2 that has passed through the second photographing unit 87 reach the triangular plate 88 in a state where they overlap each other. The first web W1 and the second web W2 that have reached the triangular plate 88 are formerly folded by the triangular plate 88. At this time, the web guide 71 aligns the former folding positions P_1 and P_2 of the first web W1 and the second web W2 with the position P_4 of the triangular plate 88 shown in FIG. The difference d1 is eliminated. Accordingly, the first web W1 and the second web W2 can be accurately folded at the former folding positions P_1 and P_2.

  The first web W <b> 1 and the second web W <b> 2 that have been folded into the former reach the cutting portion 800 downstream of the triangular plate 88. The cutting unit 800 cuts the reached first web W1 and second web W2 in units of the patterns P1 and P2. At this time, since the phase difference d2 is eliminated by the movement control of the compensator roller 85, the first web W1 and the second web W2 can be accurately cut in units of the patterns P1 and P2.

  As described above, according to the present embodiment, the first mark M1 detected by the first imaging unit 86 and the control unit 89, and the second mark M2 detected by the second imaging unit 87 and the control unit 89, Based on the above, the phase of the second picture P2 can be aligned with the phase of the first picture P1 by the compensator roller 85 and the control unit 89. Thereby, the phase adjustment of the images P1 and P2 between the printed products W1 and W2 stacked one above the other can be automatically performed with high accuracy.

  In addition, you may apply this embodiment to conveyance apparatuses other than the conveyance apparatus of the offset rotary printing press 1. FIG.

  The aspect of the present invention is not limited to the individual embodiments described above, and includes various modifications that can be conceived by those skilled in the art, and the effects of the present invention are not limited to the contents described above. That is, various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

  85 Compensator roller, 86 First imaging unit, 87 Second imaging unit 87, 89 Control unit

Claims (10)

A first detection unit for detecting a first index provided on the first printed matter on which the first image is printed;
A second detection unit for detecting a second index provided on the second printed matter on which the second image is printed;
Based on the first mark detected by the first detector and the second mark detected by the second detector, the first printed matter and the second printed matter are arranged in an up-and-down state. A printed material conveying apparatus comprising: a phase adjusting unit that adjusts a relative phase between the first image and the second image so that the phases of the first image and the second image are aligned. The phase adjusting unit is
A compensator roller disposed on the transport path of the second printed material so as to be movable in a direction intersecting the transport direction and the width direction of the second printed material;
Based on the detected first index and the detected second index, a positional deviation amount in the transport direction between the first image and the second image arranged above and below is detected, and the detected The printed matter conveying apparatus according to claim 1, further comprising: a control unit that moves the compensator roller according to a positional deviation amount.   It is arranged upstream of the compensator roller in the conveying direction, and changes the conveying direction of the second printed material so that the second printed material and the first printed material are arranged vertically, and in the width direction of the second printed material. The printed matter conveying apparatus according to claim 2, further comprising a turn bar for adjusting the position.   The control unit detects a positional deviation amount in the width direction between the first image and the second image arranged above and below based on the detected first index and the detected second index, The printed matter conveying apparatus according to claim 3, wherein the second printed matter is moved in the width direction by the turn bar in accordance with the detected amount of positional deviation.   5. The printed material conveying apparatus according to claim 3, further comprising a slitter that is disposed upstream of the turn bar in the conveying direction and cuts a sheet into the first printed material and the second printed material. The first detection unit has a first imaging unit that images the first index downstream in the transport direction from the compensator roller,
6. The printed material conveyance device according to claim 2, wherein the second detection unit includes a second imaging unit that images the second index downstream of the compensator roller in the conveyance direction.   The first photographing unit and the second photographing unit are positions where the first index and the second index in the first printed material and the second printed material arranged vertically are shifted in the vertical direction and the width direction. The printed material transport apparatus according to claim 6, which is disposed on the printer.   A triangular plate disposed downstream of the first detection unit and the second detection unit and configured to bend at a predetermined position in the width direction in a state where the first printed product and the second printed product are superposed vertically; Item 8. The printed material conveying apparatus according to any one of Items 3 to 7. Detecting a first index provided on the first printed matter on which the first image is printed;
Detecting a second index provided on the second printed matter on which the second image is printed;
Based on the detected first mark and the detected second mark, the phases of the first image and the second image in a state where the first printed material and the second printed material are arranged vertically. A printed matter conveying method of adjusting a relative phase between the first image and the second image so as to be aligned. The first index is provided on the conveyance direction side of the first printed matter with respect to the first image,
The printed matter transport method according to claim 9, wherein the second index is provided on a transport direction side of the second printed matter with respect to the second image.

Images