JP4186028B2 - Inspection rotary printing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inspection rotary printing machine that inspects a sheet and prints a number or a seal on the sheet.
[0002]
[Prior art]
In the printing of securities, etc., the design is printed with additional seals and numbers, and this type of printed matter is printed on a sheet with a pattern printing machine and then inspected. A stamp or number is printed on a sheet that has passed a pass / fail test on a rotary printing press to avoid management confusion and defective products.
[0003]
A conventional inspection rotary printing machine includes a sheet feeding unit that supplies a sheet on which a pattern has been printed in advance to the printing machine, a first inspection cylinder that holds the sheet and winds it around a circumferential surface, and the first inspection cylinder. A first inspection apparatus that inspects a sheet that is provided facing the peripheral surface and is conveyed by the first inspection cylinder, and a sheet that is provided in contact with the first inspection cylinder and is received from the first inspection cylinder is wound around the peripheral surface. An inspection unit including a second inspection cylinder that is conveyed while being in contact with the peripheral surface of the second inspection cylinder, and a second inspection device that inspects the sheet conveyed by the second inspection cylinder, and the inspection unit A printing unit that performs printing on the sheet inspected by the printing unit, and a paper discharge unit that discharges the sheet printed by the printing unit. The back side of the sheet is inspected, and sheets that pass this inspection are marked. It is conveyed to the section where the stamp and number is performed, is conveyed to the sheet discharge unit.
[0004]
If the sheet is determined to be defective in the inspection, the sheet is conveyed to the printing unit, where it is conveyed to the paper discharge unit without being printed. Based on the signal from the inspection unit, the paper discharge unit is controlled to discharge a defective sheet to a location different from the sheet that has passed the inspection.
[0005]
The printing unit holds the sheet and conveys it while winding it around the peripheral surface, two transfer cylinders that are provided in contact with the impression cylinder and that prints on the sheet conveyed by the impression cylinder, It is composed of an inking device that supplies ink to the transfer cylinder. If this transfer cylinder is used as a stamp cylinder, stamp printing is performed on the sheet. If the transfer cylinder is used as number cylinder, number printing is performed on the sheet. Become.
[0006]
In this conventional inspection rotary printing machine, the means for conveying the sheet from the inspection unit to the printing unit is in contact with the paper drum whose peripheral surface is in contact with the cylinder of the inspection unit and the peripheral surface of the cylinder of the printing unit. A paper feed cylinder, a sprocket provided on each of the shafts of the paper take-up cylinder and the paper feed cylinder, a transport chain stretched between the sprocket on the paper take-up cylinder side and the sprocket on the paper feed cylinder side, and It is composed of a claw hook that is supported by the conveying chain at regular intervals and grips the leading edge of the sheet.
[0007]
The number cylinder is composed of a rotationally driven shaft and a disc-shaped mounting ring fixed to the shaft and provided with a plurality of numbering devices on the outer periphery. The mounting ring equipped with the numbering device has an axial direction of the shaft. A plurality of numbering devices are arranged in the circumferential direction and the axial direction in the numbering cylinder, respectively, and the sheet conveyed by the impression cylinder is in the vertical direction and the horizontal direction. Numbers are printed at multiple locations.
[0008]
[Problems to be solved by the invention]
However, the conventional inspection rotary printing press transports the sheet inspected by the inspection unit to the printing unit with the nail plate provided on the chain, so the switching accuracy is poor and the sheet determined to be normal by the inspection unit However, there is a problem that the printing position is shifted.
[0009]
Also, if one of the two transfer cylinders of the printing unit is a stamp cylinder and the other is a number cylinder, the stamp and number are printed by one printing, but the number is printed only by one number cylinder. Therefore, when the number printed positions are close to each other, especially when a pattern with the same pattern is arranged vertically and horizontally on a single sheet, and a stamp and a plurality of numbers are printed on each pattern, adjacent numbering devices are surrounded. Even if it is close to the direction and the axial direction, it cannot be close to the size of the numbering device, so it may not be able to cope with the extremely narrow interval (pitch) in the vertical direction and the horizontal direction of adjacent number printing positions. Further number printing has to be performed by another number printing machine, and there is a possibility that the printing position may be shifted, resulting in a problem that printing accuracy is deteriorated. Furthermore, another number printing machine must be installed, and there is a problem in terms of space and cost. Also, even if both transfer cylinders are number cylinders, if there are a large number of printed parts on a single sheet and they are close to each other, the two cylinders may not be able to handle them. In order to print the image, a separate printing machine is required, and problems arise in terms of printing accuracy, space, and cost.
[0010]
Therefore, the present invention can improve the printing accuracy by improving the accuracy of sheet delivery, enabling various types of number printing by one printing, and greatly reducing the cost without using a separate printing machine. An object is to provide an inspection rotary printing machine that can be reduced.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, an inspection rotary printing press according to the present invention is provided with a first inspection cylinder that holds a sheet and conveys it while being wound around a peripheral surface, and is provided opposite to the peripheral surface of the first inspection cylinder. A first inspection device that inspects a sheet conveyed by the first inspection cylinder, and a second inspection that is provided in contact with the first inspection cylinder and conveys the sheet received from the first inspection cylinder while being wound around a circumferential surface. An inspection section provided with a cylinder, a second inspection device provided to face the peripheral surface of the second inspection cylinder and inspected by the second inspection cylinder, and a sheet inspected by the inspection section An inspection rotary printing press comprising: a printing unit that performs printing on the sheet; and the printing unit is provided in contact with the second inspection cylinder and winds the sheet received from the second inspection cylinder around a circumferential surface. A first impression cylinder to be conveyed while being conveyed by the first impression cylinder A stamp cylinder for printing a stamp on the sheet to be printed, first and second number cylinders for printing numbers on the sheet conveyed by the first impression cylinder, and the first impression cylinder. A transfer cylinder that conveys the sheet received from the first impression cylinder, and a second impression cylinder that is provided in contact with the transfer cylinder and conveys the sheet received from the transfer cylinder while being wound around a peripheral surface; And a third number cylinder and a fourth number cylinder for printing numbers on the sheet conveyed by the second impression cylinder.
[0012]
According to this, the sheet whose front and back surfaces are inspected by the inspection unit is transferred from the second inspection cylinder to the first impression cylinder of the printing unit, where stamp printing and first and second number printing are performed. . Thereafter, the sheet is transferred to the second impression cylinder via the transfer cylinder, where third and fourth number printing is performed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The inspection rotary printing press according to the present invention will be described in detail with reference to the drawings by way of examples.
[0014]
[Example]
FIG. 1 is a schematic configuration diagram of an inspection rotary printing press showing an embodiment of the present invention.
[0015]
As shown in FIG. 1, the inspection rotary printing press includes a paper feeding unit 1, an inspection unit 2, a printing unit 3, a paper discharge unit 4, and other accessory devices.
[0016]
This embodiment exemplifies an inspection rotary printing machine that additionally prints a serial number and a seal on a sheet on which a pattern is printed. A large number of sheets 5 on which a plurality of patterns are printed are stacked on the paper feeding unit 1. A paper stack 6 is provided. Then, the sheets 5 on the paper stack 6 are sucked one by one by a sucker device (not shown) and fed onto the feeder board 7 and fed to the inspection unit 2 through the transfer cylinder 9 by the swing device 8. Yes.
[0017]
The inspection unit 2 holds the sheet 5 and conveys the sheet 5 while winding it around the circumferential surface, and is provided to face the circumferential surface of the first inspection cylinder 10 and is conveyed by the first inspection cylinder 10. A surface inspection camera 11 as a first inspection apparatus for inspecting the sheet 5 and the sheet 5 provided in contact with the first inspection cylinder 10 and received from the first inspection cylinder 10 are conveyed while being wound around a peripheral surface. A second inspection cylinder 12 and a back inspection camera 13 as a second inspection apparatus that inspects the sheet 5 that is provided facing the peripheral surface of the second inspection cylinder 12 and is conveyed by the second inspection cylinder 12. Prepare.
[0018]
The printing unit 3 is provided so as to be in contact with the second inspection cylinder 12 and conveys the sheet 5 received from the second inspection cylinder 12 while being wound around the circumferential surface, and the first impression cylinder 14. A stamp cylinder 15 for printing a seal on the sheet 5 conveyed by the first and second number cylinders 16 and 17 for printing numbers on the sheet 5 conveyed by the first impression cylinder 14; The transfer cylinder 18 is provided in contact with the first impression cylinder 14 and conveys the sheet 5 received from the first impression cylinder 14, and is received from the transfer cylinder 18 provided in contact with the transfer cylinder 18. A second impression cylinder 19 that conveys the sheet 5 while being wound around the circumferential surface; and third and fourth number cylinders 20 and 21 that print numbers on the sheet 5 conveyed by the second impression cylinder 19. Has [0019]
In the illustrated example, the first pressure drum 14 and the second pressure drum 19 are disposed in a direction perpendicular to the floor surface via the transfer drum 18. The diameters of the first and second impression cylinders 14 and 19 and the first and second inspection cylinders 10 and 12 are twice the diameters of the first to fourth number cylinders 16, 17, 20, and 21. It has become.
[0020]
The stamp cylinder 15 and the first to fourth number cylinders 16, 17, 20, 21 are supported by eccentric bearings (not shown) whose respective shaft ends are rotated by a driving means (not shown). Control means (not shown) can be attached to and detached from the corresponding first and second impression cylinders 14 and 19 when a defective sheet is detected by the front surface inspection camera 11 or the rear surface inspection camera 13. Thus, it is configured to be detached from the impression cylinder when the defective sheet passes and to contact after passing.
[0021]
The first to fourth numbering cylinders 16, 17, 20, and 21 are ordinary ones having a plurality of numbering devices in a circumferential direction via a mounting ring on a rotating shaft (not shown), and at the end of the shaft. A number is sent every rotation of the number cylinder by being driven by a provided number feeding mechanism, and at the time of detecting the defective sheet, the number feeding is stopped only when the defective sheet passes.
[0022]
In the figure, 22 is an inker comprising an ink fountain and a large number of roller groups and supplying ink to the seal cylinder 15. , 17 and the third and fourth number cylinders 20 and 21, respectively.
[0023]
In the illustrated example, the stamp inker 22 is placed on the machine frame 24. Also, the number inkers 23a and 23b are supported by the moving frame 25 and are retracted backward when operating the number cylinders 16, 17, 20, and 21 (attachment, removal, cleaning, alignment, etc. of the numbering device). It has come to be able to do.
[0024]
A discharge cylinder 26 is in contact with the second pressure cylinder 19, and a pair of left and right discharge chains are provided between a sprocket 27 coaxial with the second impression cylinder 19 and a sprocket 28 at the end of the discharge section 4. 29 is stretched, and a plurality of paper discharge claws 30 are juxtaposed on a claw shaft that is supported between the left and right paper discharge chains 29 at regular intervals. The received sheet 5 is received in cooperation with the paper discharge drum 26, and is conveyed to the paper discharge unit 4 along with the conveyance of the paper discharge chain 29, and is selectively discharged onto the three piles 31a, 31b, 31c. It has become. The two piles 31a and 31b at the front stage discharge normal sheets 5, and the one pile 31c at the rear stage discharges defective sheets.
[0025]
Since the sheet 5 sent from the sheet feeding unit 1 to the inspection unit 2 is first inspected by the surface inspection camera 11 by the first inspection cylinder 10, the sheet 5 sent to the inspection unit 2 is then transferred to the second inspection cylinder 12. Then, the back surface is inspected by the back surface inspection camera 13.
[0026]
Next, the sheet 5 is transferred directly from the second inspection cylinder 12 to the first impression cylinder 14 of the printing unit 3, where the stamp printing by the stamp cylinder 15 and the first number cylinder 16 and the first number 17 by the second number cylinder 17 are performed. And second number printing is performed.
[0027]
Next, the sheet 5 is transferred to the second impression cylinder 19 via the transfer cylinder 18, where third and fourth number printing is performed by the third number cylinder 20 and the fourth number cylinder 21.
[0028]
Next, the sheet 5 is transferred to the paper discharge drum 26, and is conveyed from here to the paper discharge unit 4 by the paper discharge chain 29, and is discharged onto the foremost pile 31a. When the foremost pile 31a becomes full, it is discharged onto the next-stage pile 31b. During this time, the foremost pile 31a is carried out of the machine and replaced with an empty pile 31a to prepare for the next discharge.
[0029]
The above is a case where the normal pattern is printed on the sheet 5, but when a defective sheet is supplied to the inspection unit 2, for example, when the pattern is printed overly, the illegal portion is the surface of the sheet 5. In any of the back surfaces, either the front surface inspection camera 11 or the back surface inspection camera 13 detects this.
[0030]
At this time, the stamp cylinder 15 and the first to fourth number cylinders 16, 17, 20, and 21 are detached from the first impression cylinder 14 and the second impression cylinder 19 only when the defective sheet passes by the control means. In addition, as described above, in the first to fourth number cylinders 16, 17, 20, and 21, the number feeding of the numbering device is stopped.
[0031]
As described above, in this embodiment, since the sheet 5 is transferred from the inspection unit 2 to the printing unit 3 between the cylinders, the transfer accuracy is high, and thus the printing accuracy is improved.
[0032]
In addition, stamps and number printing can be performed by one printing, and the number printing can be performed in various types without being limited to the position where the number printing is performed, so that the printing accuracy is improved. Further, since no separate printing press is used, it is not necessary to secure an installation space, and the cost is greatly reduced.
[0033]
In the present embodiment, the first pressure drum 14 and the second pressure drum 19 are disposed in a direction perpendicular to the floor surface via the transfer drum 18, so that the first to fourth number drums 16 are arranged. , 17, 20, and 21 are arranged perpendicular to the floor surface, so that the first to fourth number cylinders 16, 17, 20, and 21 can be easily attached, removed, cleaned, and aligned.
[0034]
The diameters of the first and second impression cylinders 14 and 19 and the first and second inspection cylinders 10 and 12 are twice the diameters of the first to fourth number cylinders 16, 17, 20, and 21. Therefore, whether the sheet 5 passes through the position where the sheet 5 is inspected by the back surface inspection camera 13 and is printed by the seal cylinder 15 is reliably judged, and the malfunction of the apparatus is prevented. Is done.
[0035]
Needless to say, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.
[0036]
【The invention's effect】
As described above, according to the present invention, the first inspection cylinder that holds the sheet and conveys it while being wound around the peripheral surface, and is provided opposite to the peripheral surface of the first inspection cylinder and is conveyed by the first inspection cylinder. A first inspection apparatus for inspecting a sheet to be inspected, a second inspection cylinder that is provided in contact with the first inspection cylinder and conveys the sheet received from the first inspection cylinder while being wound around a peripheral surface, and the second inspection cylinder An inspection unit provided with a second inspection device that is provided facing the peripheral surface of the cylinder and that is conveyed by the second inspection cylinder, and printing that performs printing on the sheet inspected by the inspection unit A first impression cylinder that conveys the sheet received from the second inspection cylinder while being wound around a peripheral surface, the printing section being provided in contact with the second inspection cylinder. And the sheet conveyed by the first impression cylinder A stamp cylinder for printing the seal, first and second number cylinders for printing numbers on the sheet conveyed by the first impression cylinder, and a first cylinder provided in contact with the first impression cylinder. A transfer cylinder that conveys the sheet received from the impression cylinder; a second impression cylinder that is provided in contact with the transfer cylinder and conveys the sheet received from the transfer cylinder while being wound around a peripheral surface; and the second impression cylinder Since the third and fourth number cylinders for printing numbers on the sheet conveyed by the above are provided, the sheet passing accuracy is improved and various types of number printing can be performed by one printing. The printing accuracy can be improved, and it is not necessary to use a separate printing machine, and the cost can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an inspection rotary printing press showing a first embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Paper feed part 2 Inspection part 3 Printing part 4 Paper discharge part 5 Sheet 6 Paper stack 7 Feeder board 8 Swing apparatus 9 Transfer cylinder 10 First inspection cylinder 11 Surface inspection camera 12 Second inspection cylinder 13 Back surface inspection camera 14 First impression cylinder 15 Seal cylinder 16 First number cylinder 17 Second number cylinder 18 Transfer cylinder 19 Second impression cylinder 20 Third number cylinder 21 Fourth number cylinder 22 Seal inkers 23a, 23b Number inker 24 Number machine frame 25 Moving frame 26 Paper discharge cylinder 27, 28 Sprocket 29 Paper discharge chain 30 Paper discharge claws 31a, 31b, 31c Pile

Claims (1)

A first inspection cylinder that holds and conveys the sheet while being wound around the peripheral surface; a first inspection apparatus that inspects the sheet that is provided opposite to the peripheral surface of the first inspection cylinder and is conveyed by the first inspection cylinder; A second inspection cylinder which is provided in contact with the first inspection cylinder and conveys the sheet received from the first inspection cylinder while being wound around the peripheral surface; and a second inspection cylinder which is provided opposite to the peripheral surface of the second inspection cylinder. An inspection unit comprising a second inspection device for inspecting a sheet conveyed by the second inspection cylinder;
A printing unit that performs printing on a sheet inspected by the inspection unit;
Inspection rotary printing press equipped with
The printing unit
A first impression cylinder that is provided in contact with the second inspection cylinder and conveys the sheet received from the second inspection cylinder while being wound around a peripheral surface;
A stamp cylinder for printing a stamp on the sheet conveyed by the first impression cylinder, and first and second number cylinders for printing numbers on the sheet conveyed by the first impression cylinder;
A transfer cylinder provided in contact with the first impression cylinder for conveying the sheet received from the first impression cylinder;
A second impression cylinder that is provided in contact with the transfer cylinder and conveys the sheet received from the transfer cylinder while being wound around a peripheral surface;
Third and fourth number cylinders for printing numbers on the sheet conveyed by the second impression cylinder;
An inspection rotary printing machine characterized by comprising:

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