JP2008200804A - Cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device capable of cutting the stacked printed sheets without causing deviation of a cutting position of the sheets and preventing occurrence of out-of-position in printing in the cut printed matter. <P>SOLUTION: A first reference side 15 of a bundle of the stacked printed sheets 11 is pressed against a back gage 29 for positioning. Then, the back gage 29 is rotated together with the printed sheet 11 so that a side of the printed matter 12 printed on the printing sheet 11 becomes parallel with a knife 31 based on the position information of a cutting position mark 14 measured in advance. The back gage 29 is moved in the directions for making it approach or leave the knife 31 together with the printed sheet 11 so that the side of the printed matter 12 agrees with a position to be cut by the knife 31 to cut a blank part on the printed sheet 11 by the knife 31. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cutting apparatus for cutting a bundle of printed sheets with high accuracy.

  In the production process of printed matter, after printing a plurality of printed matters on one large sheet at a time, the printed sheets are stacked to form a bundle, and the bundle is cut and cut into individual printed matters. Many.

  That is, in the printing process, a plurality of printed materials are collectively printed on each sheet one by one, and a predetermined number of printed sheets are stacked. Since the printed sheets are printed on two adjacent sides as a reference, the stacked printed sheets are aligned on the two sides serving as a reference, so that the positions of the printed sheets overlapping each other are aligned.

  Next, a reference side of the bundle of print sheets is grasped by a clamp, and the print sheet bundle is cut on the side opposite to the reference side to cut off a blank portion (unnecessary portion). Further, the printed sheet bundle is cut by a cutting machine to separate individual printed matter.

  When cutting a bundle of printed sheets as described above, the edges of the aligned bundle of printed sheets are cut by a cutting machine while being gripped by a chuck.

  However, when a printed material is printed on a sheet, the printed material may be inclined with respect to a reference side of the printed sheet. As in the prior art, even in such a case, when the print sheet is cut with the side serving as the reference of the print sheet as a reference, the cutting position of the printed matter is shifted, and printing of the printed matter is shifted.

  In addition, a thin air layer is sandwiched between the stacked print sheets, or the print sheets that overlap are gently wavy, so align the edges of the print sheet bundle and hold it with a clamp. Even so, the positions of the upper and lower printed materials are slightly different. For this reason, when the bundle of printed sheets is cut by a cutting machine, the cutting position of the printed material is shifted, and printing may be shifted.

  In addition, there is a method in which a part of a bundle of print sheets is pressed by a jig in order to press the printed sheet that is rising and wavy. However, in such a method, since the printing sheet is not flattened and then pressed, the printing sheet is pressed while being undulated, and the positional deviation of the printed matter cannot be resolved.

  The present invention has been made in view of such a technical problem, and an object of the present invention is to cut the stacked printed sheets so that the cutting position is not misaligned. This is to make it difficult for printing deviation to occur in the printed matter.

  In order to achieve such an object, the cutting apparatus according to the present invention is configured to bring a reference side by contacting a reference edge of a stacked print sheet with a knife for cutting a stack of stacked print sheets. And a printing sheet aligning jig that can be rotated together with the printing sheet.

  According to the cutting apparatus of the present invention, by rotating the printing sheet alignment jig, the printing sheet alignment jig is rotated together with the printing sheet alignment jig by bringing the reference side into contact with the reference sheet. Therefore, it is possible to correct the printing angle of the printing sheet while maintaining the state where the bundle of printing sheets is aligned by the printing sheet alignment jig. Therefore, the stacked print sheets can be cut so as not to be misaligned at the cutting position, and the printed material obtained by cutting the print sheet is less likely to be cut.

  The printing sheet alignment jig in an embodiment of the present invention is characterized in that the printing sheet alignment jig is movable together with the printing sheet in a direction approaching or separating from the knife. According to this embodiment, by moving the printing sheet alignment jig, the printing sheet alignment jig can be moved together with the printing sheet alignment jig by bringing the reference side into contact with the reference side. Therefore, the cutting position of the print sheet can be adjusted while maintaining the state where the bundle of print sheets is aligned by the print sheet aligning jig. Therefore, the stacked print sheets can be cut so as not to be misaligned at the cutting position, and the printed material obtained by cutting the print sheet is less likely to be cut.

  In another embodiment of the present invention, the image processing unit includes an image processing unit that reads a cutting position mark printed on a printing sheet, and the printing sheet aligning jig includes the image processing unit based on cutting position mark information detected by the image processing unit. The feature is that the rotation angle is determined. According to this embodiment, the cutting position mark of the printing sheet is read by the image processing means, and the angle of the printing sheet aligning jig is corrected based on the information, so the printing angle of the printing sheet is corrected automatically and accurately. can do.

  In still another embodiment of the present invention, the printing sheet aligning jig includes image processing means for reading a cutting position mark printed on a printing sheet, and based on the cutting position mark information detected by the image processing means. It is characterized in that the movement distance of is determined. According to this embodiment, the cutting position mark of the printing sheet is read by the image processing means, and the position of the printing sheet aligning jig is corrected based on the information, so the cutting position of the printing sheet is automatically and accurately adjusted. can do.

  In still another embodiment of the present invention, the printing sheet holding unit includes: a printing sheet holding unit that holds a side that serves as a reference of a bundle of printing sheets when the cutting position mark is read by the image processing unit. Is characterized by having a plurality of sheet pressing jigs for sequentially pressing a printed sheet held with its reference sides aligned from one end to the other end. According to such an embodiment, the bundle of print sheets is sequentially pressed from one end to the other end by the plurality of sheet pressing jigs, and therefore the air layer existing between the print sheets is removed from the bundle of print sheets. It can be driven out from the edge of the paper, and it can be straightened by correcting the bending and undulation of the printed sheet. As a result, the surface of the bundle of printed sheets can be leveled, and the reading accuracy of the cutting position mark by the image processing means can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
1 to 4 are schematic plan views showing a cut paper alignment system 101 incorporating a cutting device according to the present invention. FIGS. 5A and 5B are schematic views illustrating the state in which the printing sheet 11 is processed in the trimming paper alignment system 101 in order. However, the scales of FIGS. 1 to 4 do not match. FIG. 5 shows a state seen obliquely from the lateral direction with respect to the illustrated direction of FIGS. Hereinafter, the steps from paper alignment and cutting to carrying out of the print sheet will be described with reference to FIGS.

  First, the print sheet 11 will be described. An example of the print sheet 11 is shown in FIG. The printing sheet 11 is obtained by printing a plurality of printed materials 12 in a grid pattern on a large sheet in a printing process. There are unprinted blank portions 13 around the four sides of the printed material 12 area, and blank portions 13 are formed at appropriate positions of the blank portion 13 (for example, near the four corners outside the printed region of the printed material 12). A cutting position mark 14 serving as a mark for cutting is printed simultaneously with the printed material 12. The printed material 12 here includes not only general printed materials such as pamphlets but also banknotes, securities, and postcards.

  Since the print sheet 11 is printed on the basis of two sides in the printing process, when the print sheets 11 are overlapped, the print positions of the upper and lower print sheets 11 (on the printed matter 12) can be obtained by matching the two sides serving as the reference. Area) matches exactly. In the following, these two reference sides are referred to as a first reference side 15 (sometimes referred to as the needle side) and a second reference side 16 (sometimes referred to as the holding side), respectively. The sides facing the reference sides 15 and 16 are referred to as a first opposing side 17 (sometimes referred to as a needle butt side) and a second opposing side 18 (sometimes referred to as a grip butt side).

  As shown in FIG. 1, the trimming paper alignment system 101 includes a sheet feeding unit 102, a first stacking unit 103, a second stacking unit 104, a sheet feeding unit 105, a butt aligning unit 106, a mark position measuring unit 107, The 1st cutting part 108 etc. are provided.

  As shown in FIG. 5A, the sheet feeder 102 is a device that pulls out and supplies the printing sheets 11 one by one from a pile of a plurality of (multiple) printing sheets 11 stacked in the same direction. It is. The printing sheets 11 sent out from the sheet feeding unit 102 are conveyed forward one by one by the conveying conveyor 109 as shown in FIG.

  As shown in FIGS. 1 and 5C, the print sheets 11 conveyed by the conveyor 109 are alternately stacked by the first stacking unit 103 and the second stacking unit 104, and when a predetermined number of sheets are stacked, The pad 20 is inserted into the sheet. That is, the print sheets 11 conveyed by the conveyor 109 are accumulated on the pallet 19 in the first accumulation unit 103 and the number of accumulated sheets is counted by a counter (not shown). When a predetermined number of printing sheets 11 are stacked in the first stacking unit 103, a bundle of the printing sheets 11 is pushed out by a pusher (not shown), and an end portion of the transport conveyor 110 installed in parallel with the transport conveyor 109. It is transferred to.

  The pad paper supply unit 105 is installed on the opposite side of the first stacking unit 103 and the second stacking unit 104 with the conveyance conveyor 110 interposed therebetween. The application paper supply unit 105 holds a long application paper 20 wound in a roll shape, and supplies the application paper 20 by the cutter 21 to the same size as the printing sheet 11. Further, the application paper supply unit 105 is movable between a position corresponding to the first stacking unit 103 and a position corresponding to the second stacking unit 104.

  When the bundle of print sheets 11 accumulated in the first accumulation unit 103 is transferred to the conveyor 110 as described above, the application paper supply unit 105 sets the bundle of print sheets 11 transferred to the conveyor 110. Place the backing paper 20 on the bottom.

  On the other hand, during the period in which the bundle of printing sheets 11 is transferred from the first stacking unit 103 to the conveyor 110 and the contact paper 20 is supplied thereunder, the printing sheet conveyed from the sheet feeding unit 102 11 is stacked on the pallet 19 in the second stacking unit 104 and the number of stacked sheets is counted by a counter (not shown). When a predetermined number of printing sheets 11 are stacked on the second stacking unit 104 in this way, a bundle of the printing sheets 11 stacked on the second stacking unit 104 is transferred to the end of the transport conveyor 110, and the sheet feeding unit 102. The printing sheets 11 conveyed from the first are stacked again in the first stacking unit 103.

  Next, the application paper 20 supplied from the application paper supply unit 105 that has been moved to a position corresponding to the second stacking unit 104 is stacked under the bundle of print sheets 11 transferred to the conveyor 110.

  Since the cut sheet aligning system 101 of the present invention alternately stacks the print sheets 11 in the first stacking unit 103 and the second stacking unit 104 as described above, the print sheet 11 is transferred from the transport conveyor 109 to the transport conveyor 110. Therefore, it is not necessary to stop the sheet supply from the sheet feeding unit 102 or to reduce the conveying speed of the conveying conveyor 109 while the sheet is being transferred, and the printing sheet 11 can be processed at high speed.

  The bundle of printing sheets 11 transferred to the conveyor 110 is sent to the butt aligning unit 106 and the mark position measuring unit 107 shown in FIG. The butt alignment unit 106 and the mark position measurement unit 107 are provided at the same place.

  As shown in FIG. 7, the butt alignment unit 106 faces the paper alignment clamp 22 and the second reference side 16 arranged so as to face the first reference side 15 of the print sheet 11 positioned at the butt alignment unit 106. A paper alignment clamp 23 arranged in this manner, a pusher 24 arranged so as to face the first opposed side 17, a pusher 25 arranged so as to face the second opposed side 18, and a plurality of pressing the upper surface of the printing sheet 11. The sheet pressing jig 26a, 26b, 26c.

  In the bundle of printing sheets 11 conveyed to the butting aligning unit 106, the first opposed side 17 and the second opposed side 18 are pressed by the pushers 24 and 25, respectively, and the first reference side 15 and the second reference side 16 are respectively made of paper. Strongly pressed against the alignment guides 22 and 23 and pressed from four directions as shown in FIG. 5D, the bundle of print sheets 11 is aligned based on the first reference side 15 and the second reference side 16. As shown in FIG. 7 and FIG. 8A, the bundle of the printed sheets 11 aligned in this way is gripped by the paper alignment clamp 22 at the edge on the first reference side 15 and the edge on the second reference side 16 side. It is gripped and fixed by the paper alignment clamp 23.

  The sheet pressing jigs 26 a, 26 b, and 26 c are sequentially arranged from the second reference side 16 toward the second opposing side 18, and all of them extend long in a direction parallel to the arrangement direction of the paper alignment clamps 23. Then, as shown in FIGS. 7 and 8A, after gripping and fixing the edge of the bundle of print sheets 11 between the surface plate 28 of the butt aligning portion 106 and the paper alignment clamps 22 and 23, FIG. b), the sheet pressing jig 26a closest to the second reference side 16 is lowered to press the upper surface of the bundle of the printing sheets 11, and then the adjacent sheet pressing is performed as shown in FIG. 8C. The jig 26b is lowered to press the upper surface of the bundle of the printing sheets 11, and finally the sheet pressing jig 26c closest to the second facing side 18 is lowered as shown in FIG. Press the top of the bundle.

  As a result, the air layer caught between the printing sheets 11 is driven out from the end on the second opposing side 18 side, and the deflection of the undulating printing sheet 11 is also moved toward the second opposing side 18 side for printing. The sheet 11 is stretched flat. As a result, the position of the cutting position mark 14, the edge of the print sheet 11, and the cutting position mark 14 can be accurately measured by the image recognition camera 27 (image recognition means).

  In the illustrated example, the sheet pressing jigs 26a, 26b, and 26c are arranged from the second reference side 16 toward the second opposing side 18, but are arranged from the first reference side 15 toward the first opposing side 17. May be.

  The mark position measurement unit 107 is provided with a plurality of image recognition cameras 27. As shown in FIG. 5E, the image recognition camera 27 images a bundle of print sheets 11 from above, and measures the print sheets 11 based on the images. That is, the distances W1 and W2 from the first reference side 15 to the two cutting position marks 14 on the first opposing side 17 side measured from the first reference side 15 shown in FIG. Distances W3 and W4 to the two cutting position marks 14 in the vicinity thereof, distances L1 and L2 to the two cutting position marks 14 on the second facing side 18 measured from the second reference side 16, and the second reference side The distances L3 and L4 to the two adjacent cutting position marks 14 measured from 15 are measured.

  The bundle of printed sheets 11 that has been measured by the mark position measuring unit 107 is sent to the first cutting unit 108 shown in FIG. 1, and the margin 13 on the first opposing side 17 side is removed as shown in FIG. Cut out.

  As shown in FIG. 9, the first cutting unit 108 includes a back gauge 29 (printing sheet alignment jig), a paper presser 30, a cutting knife 31, and an abutting unit 32. The back gauge 29 is disposed on the side facing the first reference side 15 of the printing sheet 11, and the abutting portion 32 is disposed on the side facing the first facing side 17 of the printing sheet 11. The knife 31 and the paper presser 30 are disposed above the first opposing side 17 side.

  10A and 10B show the structure of the back gauge 29. FIG. The back gauge 29 includes a feed guide 34 disposed below the surface plate 33 of the first cutting unit 108 and a back gauge body 35 disposed on the surface plate 33. A ball screw 36 is screwed to the feed guide 34, and the feed guide 34 can be advanced or retracted toward the abutting portion 32 by rotating the ball screw 36.

  The upper portion of the feed guide 34 protrudes from the upper surface of the surface plate 33 through a long hole provided in the surface plate 33, and the back gauge body 35 is rotatably attached to the upper surface of the feed guide 34 by a fulcrum pin 37. Further, the back gauge body 35 rotates around the fulcrum pin 37 by rotating the slide piece 39 with the gear motor 38, and the rotation angle of the back gauge body 35 can be read by the encoder 40. A contact portion 41 having a comb shape for positioning the first reference side 15 of the printing sheet 11 is provided on the front surface of the back gauge body 35.

Thus, when the bundle of printing sheets 11 is sent to the first cutting unit 108, the abutting unit 32 protrudes and presses the bundle of printing sheets 11 against the back gauge 29 as shown in FIG. Next, as shown in FIG. 11A, the first cutting unit 108 determines the inclination θ of the printed matter 12 based on the data W1 and W2 measured by the mark position measuring unit 107.
tan θ = (W2−W1) / (L1−L3)
Ask from. Then, as shown in FIG. 11C, by driving the gear motor 38, the back gauge 29 is rotated by θ together with the bundle of the print sheets 11, so that the printed sheet 12 and the knife 31 are parallel to each other. The angle of 11 bundles is corrected.

Further, the first cutting unit 108
(W1 + W2) / 2
(Average) distance from the first reference side 15 to the cutting position is obtained, the ball screw 36 is rotated, and the distance from the back gauge 29 to the knife 31 is (W1 + W2) / 2.
The position of the back gauge 29 is adjusted to be equal to. The distance between the back gauge 29 and the knife 31 is detected by an encoder (not shown) connected to the ball screw 36.

  Thus, as shown in FIG. 11C, when the cutting position of the bundle of print sheets 11 (the end of the printed material 12) matches the position of the knife 31, the paper presser 30 is lowered to align the edge of the bundle of print sheets 11. As shown in FIGS. 5 (f) and 11 (d), the knife 31 is dropped to remove the blank portion 13 on the first opposing side 17 side of the bundle of print sheets 11. In this way, the bundle of the printing sheets 11 from which the blank portion 13 on the first opposing side 17 side has been cut is transferred to the conveyor 111.

  The bundle of printing sheets 11 transferred to the conveyor 111 is sent to the second cutting unit 112. The second cutting part 112 has the same structure as the first cutting part 108 except that the orientation of the second cutting part 112 is 90 ° different from that of the first cutting part 108. That is, the second cutting part 112 also includes a back gauge 29, a paper presser 30, a knife 31, and an abutting part 32, and the back gauge 29 is disposed on the side facing the second reference side 16 of the printing sheet 11 and abuts. The part 32 is disposed on the side of the printing sheet 11 that faces the second opposing side 18. The knife 31 and the paper presser 30 are disposed above the second opposing side 18 side.

Thus, when the bundle of print sheets 11 is sent to the second cutting unit 112, the abutment unit 32 projects and presses the bundle of print sheets 11 against the back gauge 29. Next, the second cutting unit 112 calculates the inclination θ ′ of the printed matter 12 based on the data L1 and L2 measured by the mark position measuring unit 107,
tanθ ′ = (L2−L1) / (W1−W3)
Ask from. Then, as shown in FIG. 11 (e), by driving the gear motor 38, the back gauge 29 is rotated by θ ′ together with the bundle of print sheets 11, and the print sheet 12 and the knife 31 are parallel to each other. The angle of 11 bundles is corrected.

Further, the second cutting unit 112
(L1 + L2) / 2
To obtain the (average) distance from the second reference side 16 to the cutting position, and the distance from the back gauge 29 to the knife 31 is (L1 + L2) / 2
The position of the back gauge 29 is adjusted to be equal to.

  As shown in FIG. 11 (e), when the cutting position of the bundle of printing sheets 11 (the end of the printed matter 12) coincides with the position of the knife 31, the paper presser 30 is lowered to hold the edge of the bundle of printing sheets 11, As shown in FIG. 5G and FIG. 11F, the knife 31 is dropped to remove the blank portion 13 on the second opposing side 18 side of the bundle of print sheets 11.

  Thus, the bundle of the printing sheets 11 from which the margin portions 13 on the two sides of the first opposing side 17 and the second opposing side 18 are cut is transferred to the conveyor 113 and further to the strip cutting unit 114 shown in FIG. Sent.

In the strip cutting unit 114, the bundle of printed products 12 is cut along a direction parallel to the second reference side 16 of the printed sheet 11 by the knife 42 whose position can be adjusted. At this time, using the data W1 to W4 acquired by the mark position measuring unit 107, W = [(W1-W3) + (W2-W4)] / (2 × N)
(Where N is the number of printed products 12 arranged in a direction parallel to the second reference side 16)
As shown in FIG. 5H, the bundle of printed matter 12 is cut by the image recognition camera 43 so that the cut width is W while being recognized. The bundle of strip-like printed matter 12 thus separated one by one is sent to the trimming unit 115 shown in FIG. In the trimming unit 115, the blank portion 13 remaining in the bundle of strip-shaped printed materials 12 is removed by the trimmer 44.

  The bundle of strip-like printed matter 12 from which the blank portion 13 has been completely removed is sent to the alignment unit 116 shown in FIG. 3, and a plurality of pieces are parallel to each other in the alignment unit 116 as shown in FIG. Lined up and sent out to the conveyor 117 in a state where a plurality of lines are arranged in parallel.

A small cutting section 118 is provided at the front end portion of the conveyor 117, and a plurality of strips of the printed material 12 are cut at once by the knife 45 when passing through the small cutting section 118. Cut into bundles of printed matter 12. Again, using the data L1 to L4 acquired by the mark position measurement unit 107, L = [(L1-L3) + (L2-L4)] / (2 × M)
(However, M is the number of printed products 12 arranged in a direction parallel to the first reference side 15.)
As shown in FIG. 5 (j), the bundle of printed matter 12 is cut by the image recognition camera 46 so that the cutting width is L while being recognized. The bundle of individual printed products 12 separated in this way is sent in a line by a conveyor 119.

  The bundle of printed matter 12 sent by the conveyor 119 is inspected by the image recognition camera 47 in the cutting accuracy inspection unit 120 shown in FIG. 4 as shown in FIG. Then, the printed matter 12 determined to be defective by the cutting accuracy inspection unit 120 is discharged from the transport conveyor 119 by the defective product discharge unit 121 of FIG. Further, when a defective product is discharged from the conveyor 119, the dummy 48 is inserted into the dummy insertion portion 122 at the trace from which the printed matter 12 has come off. The dummy 48 is a wooden mold or a plastic mold formed in the same size as the bundle of printed matter 12.

  Next, the bundle of printed matter 12 and the dummy 48 sent to the transport conveyor 119 are pushed out to the transport conveyor 123 adjacent to the transport conveyor 119 by the ejector 49.

  The bundles of printed matter 12 (including the dummy 48) pushed out to the conveyer 123 are aligned in the paper aligning unit 124, and four bundles are sandwiched by the stacking unit 125 with the application paper 20 interposed therebetween as shown in FIG. The sheets are collected and aligned again in the paper aligning unit 126.

  As shown in FIG. 5 (m), an empty cassette 50 as shown in FIG. 12 is sent from one end of the conveyor 127 shown in FIG. , Stored in each storage section 51 of the cassette 50.

FIG. 1 is a schematic plan view showing a part of a cutting paper alignment system according to the present invention. FIG. 2 is a schematic plan view showing another part of the cutting paper alignment system of the present invention. FIG. 3 is a schematic plan view showing still another part of the cutting paper alignment system of the present invention. FIG. 4 is a schematic plan view showing still another part of the cutting paper alignment system of the present invention. FIGS. 5A to 5M are schematic views showing how a print sheet is processed by the cutting paper alignment system of the present invention. FIG. 6 is a plan view illustrating an example of a print sheet. FIG. 7 is a plan view showing a printed sheet that is nipped between a sheet aligning clamp and a pusher at the butting section and is aligned. FIGS. 8A to 8D are schematic cross-sectional views showing a state in which printed sheets aligned at the butt aligning section are sequentially pressed by a sheet pressing jig. FIG. 9 is a schematic diagram illustrating the configuration of the first cutting unit. FIG. 10A is a partially broken plan view showing the structure of the back gauge, and FIG. 10B is a sectional view thereof. FIGS. 11A to 11F are schematic plan views illustrating a state in which the margin of the print sheet is cut in the first cutting unit and the second cutting unit. FIG. 12 is a perspective view of the cassette.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Print sheet 12 Printed matter 13 Margin part 14 Cutting position mark 15 1st reference | standard edge 16 2nd reference | standard edge 22, 23 Paper alignment clamp 24, 25 Pusher 26a, 26b, 26c Sheet pressing jig 27 Image recognition camera 29 Back gauge 30 Paper presser 31 Knife 32 Abutting section 50 Cassette 101 Cutting paper alignment system 102 Sheet feeding section 103 First stacking section 104 Second stacking section 105 Abutting paper supply section 106 Abutting section 107 Mark position measuring section 108 First cutting section 109 Conveyor 110 Conveyor 111 Conveyor 111 Second cutting unit 113 Conveyor 114 Strip cutting unit 115 Trimming unit 116 Alignment unit 117 Conveying conveyor 118 Small cutting unit 119 Conveyor 120 Cutting accuracy inspection unit 121 Defective product discharge unit 122 Dummy Insertion part 1 3 conveyor 124 jogger unit 125 stacking unit 126 jogger unit 127 conveyor

Claims (5)

  A knife for cutting a stack of stacked printed sheets, and a printed sheet aligning jig that rotates with the printed sheet while aligning the reference side by bringing the reference side of the stacked printed sheets into contact with each other Cutting device equipped with.   The cutting apparatus according to claim 1, wherein the printing sheet aligning jig is movable together with the printing sheet in a direction approaching or separating from the knife. Image processing means for reading the cutting position mark printed on the printing sheet,
The cutting apparatus according to claim 1, wherein a rotation angle of the print sheet alignment jig is determined based on cutting position mark information detected by the image processing unit. Image processing means for reading the cutting position mark printed on the printing sheet,
The cutting apparatus according to claim 2, wherein a moving distance of the print sheet aligning jig is determined based on cutting position mark information detected by the image processing means. When the image processing unit reads the cutting position mark, the sheet processing unit includes a printing sheet holding unit that holds a side that serves as a reference of a bundle of printing sheets.
The printing sheet holding means has a plurality of sheet pressing jigs for sequentially pressing the printing sheet held with the reference side aligned, from one end to the other end. The cutting device according to claim 3 or 4.

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