JP2007210172A - Printing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform printing plate manufacturing and printing simply and at a low cost even when a rolled sheet in continuous length is used. <P>SOLUTION: A printing apparatus 1 has a printing part 2 having a plate cylinder 5 which winds a master 8 for stencilling printing having an opening hole part 5A and a non-opening hole part 5B, formed with printing plate manufacturing images C1-C4, and freely rotatably and freely removably supported by the device body 17, and a pressing means 6 freely coming into contact with and separated from the plate cylinder 5, a means 3 for feeding the sheet in continuous length which forwards the sheet 18 in continuous length wound in a rolled shape toward the printing part 2, and a means 4 for winding the sheet in continuous length which winds the printed sheet 18 in continuous length into a rolled shape. The pressing means 6 is brought into press-contact with the plate cylinder 5 in accordance with the opening hole part 5A. The means 3 for feeding the sheet in continuous length and the means 4 for winding the sheet in continuous length intermittently convey the sheet 18 in continuous length in accordance with the opening hole part 5A. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a printing apparatus capable of printing on long paper wound in a roll shape, and more particularly to a printing apparatus that performs printing using a stencil printing master.

  Conventionally, digital thermal stencil printing is known as a simple printing method. This is because a thermal head having a plurality of fine heating elements is brought into contact with a master obtained by bonding a thermoplastic resin film and a porous support, and the master is placed on a platen roller or the like while energizing the heating elements in a pulsed manner. After the perforated image based on the image information is hot-melt perforated and engraved on the master thermoplastic resin film by conveying with a conveying means, the perforated master is wound around a porous cylindrical plate cylinder and a press roller or the like By pressing the paper against the outer peripheral surface of the plate cylinder by the pressing means, the ink supplied to the inner peripheral surface of the plate cylinder by the ink supply means such as an ink roller is oozed out from the plate cylinder opening and the master perforation portion. A printed image is obtained on paper by transferring ink to the paper.

  As a stencil printing apparatus that performs this stencil printing, an apparatus that continuously performs an image reading operation, a plate making operation, a plate discharging operation, a winding operation, a plate attaching operation, and a printing operation is known. According to this stencil printing apparatus, anyone can perform plate making in a short time with a simple operation at any time, and a large amount of printed matter can be obtained like a copying machine. In addition, the plate cost is inexpensive, and there is no worry of increasing the cost even when printing a small number of copies. Furthermore, since the plate making is based on digital data, it is not necessary to hold the plate, and there is an advantage that the plate making can be performed immediately if there is image data.

However, the above-described stencil printing apparatus has a problem that the printing medium is limited to a sheet of paper, and further, ink cannot be fixed and dried on paper having gloss on the surface, and printing cannot be performed. is doing. For this reason, in general, label printing or sticker printing using roll-like long paper of several tens of meters to several hundreds of meters cannot be performed using a stencil printing apparatus. In such label printing and sticker printing, the sheet is inappropriate in consideration of the stability and productivity of conveyance, and further, it is necessary to perform a punching process or a separation process in the post-printing process. Furthermore, long paper is suitable.
A label printing apparatus capable of performing such label printing is disclosed in, for example, “Patent Document 1”.

Japanese Patent Laid-Open No. 5-138871

In the printing apparatus disclosed in “Patent Document 1”, it is possible to perform label printing or sticker printing using long paper. However, since such a printing apparatus is generally manufactured as dedicated equipment, it is large-sized. There is a problem that it is expensive. The operation requires skill and is difficult for a general operator to handle easily. In addition, the plates used for printing are resin relief plates, gravure intaglio plates, offset plates, etc., and these plate making requires new dedicated and expensive plate making apparatuses and also requires skill in operation of the plate making apparatus. Become. For this reason, it is generally necessary to request a company dedicated to plate making, but there is a problem that time and cost are bulky and uneconomical.
An object of the present invention is to solve the above-described problems and to provide a printing apparatus capable of performing plate making and printing easily and at low cost even when a roll-like long paper is used.

  The invention according to claim 1 is a plate cylinder which is wound around a master body for stencil printing having an opening portion and a non-opening portion and on which a plate-making image is formed, and is rotatably and detachably supported on the apparatus body. A printing unit having pressing means that can be moved toward and away from the plate cylinder, a long paper feeding unit that feeds a long paper wound in a roll shape toward the printing unit, and a printed long paper Long paper winding means for winding the paper into a roll, the pressing means is pressed against the plate cylinder corresponding to the opening, and the long paper feeding means and the long paper winding means are The long paper is intermittently conveyed in correspondence with the opening portion.

  According to a second aspect of the present invention, in the printing apparatus according to the first aspect, the pressing means is in pressure contact with the plate cylinder corresponding to the plate-making image, and the long paper feeding means and the long paper winding means. Is characterized in that long paper is intermittently conveyed in correspondence with the plate-making image.

  According to a third aspect of the present invention, there is provided a plate cylinder having a stencil printing master having a perforated portion and a non-perforated portion and having a plate-making image formed thereon, and rotatably and detachably supported on the apparatus body. A printing unit having pressing means that can be moved toward and away from the plate cylinder, a long paper feeding unit that feeds a long paper wound in a roll shape toward the printing unit, and a printed long paper A long paper take-up means for winding the paper into a roll, and the long paper feed means and the long paper take-up means convey the long paper so that slack is always generated before and after the printing unit, and The pressing means is in pressure contact with the plate cylinder corresponding to the opening portion, and the long paper winding means intermittently conveys the long paper in correspondence with the opening portion.

  According to a fourth aspect of the present invention, in the printing apparatus according to the third aspect, the pressing means is in pressure contact with the plate cylinder corresponding to the plate making image, and the long paper winding means is made to correspond to the plate making image. It is characterized by intermittently conveying long paper.

  According to a fifth aspect of the present invention, in the printing apparatus according to any one of the first to fourth aspects, the plate cylinder further includes at least a plate making portion and a plate discharging portion, and a new plate has been made with respect to the plate cylinder. The stencil printing apparatus around which the master is wound is detachable, and the stencil printing master made by the stencil printing apparatus and supplied by the stencil printing apparatus is used.

  According to a sixth aspect of the present invention, in the printing apparatus according to any one of the first to fifth aspects, the ultraviolet irradiation unit is further provided on the downstream side in the paper conveyance direction of the contact position between the plate cylinder and the pressing unit. When the plate cylinder having an ultraviolet curable ink is used, the ultraviolet irradiation means is operated.

  According to a seventh aspect of the present invention, in the printing apparatus according to any one of the first to sixth aspects, the elongate paper feeding unit is further configured so that the pressing unit moves when the pressing unit is separated from the plate cylinder. There is provided a tension applying means for applying a tension to the long paper so that the long paper pressed against the plate cylinder is separated from the plate cylinder.

  According to an eighth aspect of the present invention, in the printing apparatus according to the seventh aspect of the present invention, the tension applying unit is further provided on the long paper at a position immediately upstream of the contact position between the plate cylinder and the pressing unit in the long paper conveyance direction. It is characterized by forming a slack.

  According to a ninth aspect of the present invention, in the printing apparatus according to the seventh aspect of the present invention, the tension applying unit is further provided for the long sheet at a position immediately upstream of the contact position between the plate cylinder and the pressing unit in the long sheet conveyance direction. It is characterized by causing a conveyance resistance.

  According to a tenth aspect of the present invention, in the printing apparatus according to any one of the first to ninth aspects, after printing, a position downstream of the contact position between the plate cylinder and the pressing unit in the long paper conveyance direction is provided. Long paper transport means for transporting long paper, the long paper transport means from the straight line orthogonal to the straight line passing through the center of the plate cylinder and the center of the pressing means the plate cylinder It is characterized by being disposed at an angle of 30 degrees or more in a further away direction.

  The eleventh aspect of the present invention is the printing apparatus according to the tenth aspect, wherein the long paper conveying unit is provided integrally with the pressing unit that contacts and separates from the plate cylinder. It is configured to be able to swing with movement.

  A twelfth aspect of the present invention is the printing apparatus according to any one of the first to fourth aspects, further comprising a plurality of the printing units, and conveying a long sheet after printing between the printing units. It has a paper conveyance means.

  According to the present invention, since printing on long paper can be easily performed by stencil printing, seal printing and label printing using long paper can be easily performed at low cost when desired. Further, since the long paper is intermittently conveyed, the interval between the print images can be minimized, and the cost can be reduced by using the long paper economically. Further, since long paper is used, it is possible to prevent the occurrence of paper transport jams as compared to printing using sheet paper.

FIG. 1 shows a printing apparatus adopting the first embodiment of the present invention. In FIG. 1, a printing apparatus 1 includes a printing unit 2, a long paper feeding unit 3, a long paper winding unit 4, and the like.
The printing unit 2 includes a plate cylinder 5 and a press roller 6 as pressing means. The plate cylinder 5 is rotatably supported by the apparatus body 17 and is driven to rotate by a plate cylinder driving means (not shown). The plate cylinder 5 has an openable / closable clamper 7 on its outer peripheral surface, and a stencil printing master 8 on which the plate making is made is wound on the outer peripheral surface of the plate cylinder 5.

  An ink container 9 is detachably disposed inside the plate cylinder 5. The ink inside the ink container 9 is supplied to the proximity of the ink roller 10 and the doctor roller 11 disposed inside the plate cylinder 5 by an ink pump (not shown) to form an ink reservoir 12. The ink in the ink reservoir 12 is supplied in a thin layer on the peripheral surface of the ink roller 10 when passing through the vicinity of the ink roller 10 and the doctor roller 11, and the plate cylinder 5 is pressed by the press roller 6 described later. At this time, the peripheral surface of the ink roller 10 and the inner peripheral surface of the plate cylinder 5 come into contact with each other, and the ink is supplied to the inner peripheral surface of the plate cylinder 5.

  The plate cylinder 5 described above is configured to be detachable from the apparatus main body 17 by guide rails 13 and 14 provided on the apparatus main body 17, and is removed from the apparatus main body 17 by sliding to the front side in FIG. Is configured to be possible. In FIG. 2, rails 37 and 38 provided on both sides of a frame 44 that rotatably holds the plate cylinder 5 are detachable from the apparatus main body 17 by sliding relative to the guide rails 13 and 14. The drive force transmitting disc 39 configured to rotate integrally with the plate cylinder 5 is fitted with a pin 40a implanted in the drive disc 40 rotatably supported by the rear side plate 41 of the apparatus body 17. A matching hole (not shown) is formed. A rotational driving force from a plate cylinder driving means (not shown) provided in the apparatus main body 17 is transmitted to the drive disk 40 via a timing belt 42 and a timing pulley 43. With this configuration, the plate cylinder is transmitted to the apparatus main body 17. When 5 is mounted, a rotational driving force from a plate cylinder driving means (not shown) is transmitted to the plate cylinder 5, and the plate cylinder 5 is rotationally driven. Further, the frame 44 is provided with a plate cylinder identifying projection 45, which is identified by an identification sensor 46 disposed on the apparatus main body 17 side. When the identification sensor 46 detects that the plate cylinder 5 using the ultraviolet curable ink is attached to the apparatus main body 17, the ultraviolet irradiation means 25 described later is operated. Further, a rotary encoder (not shown) is disposed near the outer periphery of the plate cylinder 5 so that the position of the plate cylinder 5 in the rotation direction is sequentially managed.

  A press roller 6 is disposed below the plate cylinder 5. A press roller 6 having approximately the same length as the axial length of the plate cylinder 5 and having an elastic body such as rubber wound around the core portion is provided with a pair of press roller arms (not shown) at both ends of the core portion. It is supported rotatably. A pair of press roller arms (not shown) are integrally formed with each other, and are swung by a cam (not shown) that rotates in synchronization with the plate cylinder 5. Close to and away from the outer peripheral surface. In the first embodiment, the press roller 6 is brought into pressure contact with the opening portion of the plate cylinder 5 and separated from the non-opening portion. In the vicinity of a cam (not shown), press roller locking means (not shown) for holding the press roller 6 at a spaced position where the press roller 6 is separated from the plate cylinder 5 is disposed.

On the right side of the printing unit 2, a long paper feeding unit 3 is disposed. The long paper feed unit 3 includes a long paper support unit 15 and a long paper feed roller pair 16.
The long paper support means 15 is formed in the apparatus main body 17, and is formed by winding a long paper 18 in which a web made of plain paper, coated paper, resin sheet or the like is wound around a core material 18b in a roll shape. The long paper roll 18a is supported rotatably and detachably. The long paper 18 includes a seal-like paper bonded to a release paper.

  A pair of long paper feed rollers having a driving roller 16a and a driven roller 16b in pressure contact with the long paper roll 18a and the printing unit 2 on the transport path of the long paper 18 are provided. 16 is disposed. The driving roller 16a is rotationally driven by a stepping motor 19, and the operation of the stepping motor 19 is controlled by a control means (not shown).

Long paper winding means 4 is disposed on the left side of the printing unit 2. The long paper winding means 4 includes a long paper winding member 20, a long paper winding motor 21, a long paper winding roller pair 22, and the like.
The long paper take-up member 20 is rotatably and detachably supported by the apparatus main body 17, and detachably supports the core material 20a to which one end of the long paper 18 after printing is fixed. A rubber belt 23 is wound around the long paper winding member 20, and the rubber belt 23 is wound on a pulley 21 a attached to a long paper winding motor 21 disposed in the apparatus main body 17. With this configuration, when the long paper take-up motor 21 operates, the long paper take-up member 20 rotates counterclockwise in FIG. 1 and the long paper 18 is taken up. The rotational peripheral speed of the long paper take-up motor 21 is set slightly faster than the rotational peripheral speed of a long paper take-up roller pair 22 which will be described later, and between the output shaft of the long paper take-up motor 21 and the pulley 21a. A torque limiter (not shown) is interposed between the long paper take-up motor 21 and the long paper take-up motor 21 without slippage in the long paper take-up roller pair 22 which will be described later. Is wound around the long paper take-up member 20 so that the long paper 18 is not slackened while a torque limiter (not shown) slips.

  A pair of long paper take-up rollers having a driving roller 22a and a driven roller 22b in pressure contact with the long paper take-up member 20 and the printing unit 2 on the transport path of the long paper 18. 22 is disposed. The driving roller 22a is rotationally driven by a stepping motor 24, and the operation of the stepping motor 24 is controlled by control means (not shown).

Ultraviolet irradiation for irradiating ultraviolet rays onto the printing surface of the printed long paper 18 at a position on the transport path of the long paper 18 and between the printing unit 2 and the long paper winding roller pair 22 Means 25 are provided. This ultraviolet irradiation means 25 is used when ultraviolet curable ink is transferred from the plate cylinder 5 to the long paper 18.
The ultraviolet irradiation means 25 supplies power to a plurality of ultraviolet irradiation lamps 26, a casing 27 that prevents external leakage of ultraviolet rays, a reflector 28 for reflecting ultraviolet rays provided inside the casing 27, and the ultraviolet irradiation lamp 26 (not shown). It has a power supply, an air duct (not shown) that draws air inside the casing 27 and discharges it outside.

FIG. 3 shows a stencil printing apparatus to which a plate cylinder 5 used in the printing apparatus 1 shown in FIG. 1 can be attached. In the figure, a stencil printing apparatus 29 includes a printing unit 30, a plate making unit 31, a paper feeding unit 32, a plate discharging unit 33, a paper discharging unit 34, an image reading unit (not shown), and the like.
The printing unit 30 located substantially in the center of the apparatus main body 35 includes a plate cylinder 5 and a press roller 36. The plate cylinder 5 is configured to be detachable from the apparatus main body 35 by slidingly engaging the rails 37 and 38 with guide rails 47 and 48 disposed on the apparatus main body 35. The press roller 36 disposed below the plate cylinder 5 is configured in the same manner as the press roller 6, and is configured to be swingable by a swinging means (not shown) so as to be able to contact with and separate from the peripheral surface of the plate cylinder 5. Yes. In the vicinity of the press roller 36, press roller locking means (not shown) for holding the press roller 6 at a spaced position where the press roller 6 is separated from the plate cylinder 5 is disposed.

  A plate making section 31 is disposed on the upper right side of the printing section 30. The plate making unit 31 is a master support means (not shown) for supporting a master roll 8a formed by winding a stencil printing master 8 (hereinafter, simply referred to as a master 8) in a roll shape, and a thermoplasticity of the master 8. A thermal head 49 for making a heat-piercing plate of a resin film, a platen roller 50 for conveying the master 8 while being pressed against the thermal head 49, a master cutting means 51 for cutting the master 8, a master conveying roller 52 for conveying the master 8, and a master conveying roller This is a well-known configuration having a master stock means (not shown) or the like for forming a pair 53, and making and storing the deflection of one plate on the master 8 made of the plate. The master 8 made by the plate making unit 31 is brought into a plate feed standby state and is transported to the opened clamper 7, and the clamper 7 is closed to hold its tip on the outer peripheral surface of the plate cylinder 5. Thereafter, when the plate cylinder 5 is rotated and the platen roller 50, the master conveying roller 52, and the master conveying roller pair 53 are rotated, the master 8 made by the plate is sent out from the plate making unit 31, and the master for one plate is conveyed. The master cutting means 51 is activated and the master 8 is cut. The cut master 8 is pulled out from the plate making section 31 by the rotation of the plate cylinder 5, whereby the winding operation of the master 8 around the plate cylinder 5 is completed.

  A sheet feeding unit 32 is disposed below the plate making unit 31. The paper feed unit 32 includes a paper feed tray 54 on which the paper P is stacked, a paper feed roller 55 for feeding the paper P from the paper feed tray 54, a separation roller 56 and a separation pad 57 for separating and feeding the paper P one by one, a separation This is a well-known configuration including a registration roller pair 58 that feeds the fed paper P toward the printing unit 30 at a predetermined timing. The registration roller pair 58 is transmitted with a driving force from a plate cylinder driving unit (not shown) via a driving force transmission unit (not shown), and is driven to rotate in synchronization with the rotation of the plate cylinder 5. The paper P fed from the paper feed unit 32 is sent to the press contact portion between the plate cylinder 5 and the press roller 36 at a timing coincident with the plate-making image of the master 8 wound on the plate cylinder 5. Is pressed against the plate cylinder 5 to form a printed image corresponding to the plate-making image on the upper surface thereof.

  A plate discharging unit 33 is disposed on the upper left side of the printing unit 30. The plate discharging unit 33 peels off and transfers the used master 8 from the outer peripheral surface of the plate cylinder 5, the upper plate discharging member 59 and the lower plate discharging member 60, and the used master 8 transferred by the plate discharging members 59 and 60. This is a well-known configuration having a plate discharging box 61 for storing, a compression plate (not shown) for compressing a used master 8 in the plate discharging box. The plate discharging box 61 is detachable from the apparatus main body 35, and is removed from the apparatus main body 35 when the sensor (not shown) detects that the used master 8 in the plate discharging box 61 is full. The used master 8 inside is discarded.

  A paper discharge unit 34 is disposed below the plate discharge unit 33. The paper discharge unit 34 is sucked and conveyed by a peeling claw (not shown) that peels off the printed paper P from the outer peripheral surface of the plate cylinder 5, a paper discharge conveyance member 62 that sucks and conveys the printed paper P, and a paper discharge conveyance member 62. This is a known configuration having a paper discharge tray 63 and the like on which the printed paper P is stacked. The paper discharge tray 63 is provided with an end fence 64 where the leading edge of the paper P abuts and a pair of side fences (not shown) for aligning the paper P in the width direction.

  By using the stencil printing apparatus 29 described above, the plate cylinder 5 removed from the apparatus main body 17 is mounted on the apparatus main body 35, and then a document is set on an image reading unit (not shown), and a stencil printing start key (not shown) of the stencil printing apparatus 29 is pressed. By depressing, the plate discharging unit 33 is operated to peel off the used master 8 from the plate cylinder 5, and then the plate making unit 31 is operated and a plate making image corresponding to the original image is formed on the outer peripheral surface of the plate cylinder 5. The formed new master 8 is wound. By removing the plate cylinder 5 from the apparatus main body 35 and attaching it to the apparatus main body 17, new printing can be performed in the printing apparatus 1.

  FIG. 4A shows an opening 5A and a non-opening 5B in the plate cylinder 5. FIG. In the first embodiment, the press roller 6 presses the peripheral surface thereof corresponding to the opening 5A of the plate cylinder 5, so that the opening 5A is a printing area and the non-opening 5B is a non-printing area. It becomes. FIG. 4B shows a plate-making image made on the master 8. In this first embodiment, four label images C1 to C4 as plate-making images of a specific size are made on the master 8 side by side. FIG. 4C shows a print image printed on the long paper 18. In the first embodiment, when the plate cylinder 5 is rotated once, four labels are printed in the image area D1, and by the next rotation of the plate cylinder 5, four labels are printed in the image area D2. At this time, the interval DS between the image regions D1 and D2 is a length corresponding to the non-opening portion 5B when the long paper 18 is continuously fed in synchronization with the rotation of the plate cylinder 5. However, since the length of the non-opening portion 5B is relatively large as can be seen from FIG. 4A, it is not preferable to perform continuous paper feeding when the long paper 18 is used economically. Therefore, in the first embodiment, the distance DS is shortened by intermittently transporting the long paper 18 and the long paper 18 is used economically.

  Hereinafter, the operation of the printing apparatus 1 according to the first embodiment will be described with reference to FIG. First, the operator uses the stencil printing apparatus 29 shown in FIG. 3 to wind the master 8 on which the plate-making image (label images C1 to C4 in the present embodiment) to be printed on the peripheral surface of the plate cylinder 5 is wound. After the master 8 is wound, the plate cylinder 5 is removed from the stencil printing apparatus 29 and mounted on the printing apparatus 1. In the printing apparatus 1, the leading end of the long paper 18 is pulled out from the long paper roll 18 a, and the leading end of the long paper winding member 20 passes through the long paper feeding roller pair 16 and the long paper winding roller pair 22. Fixed to. The long paper 18 is set in a state in which tension is maintained between the long paper roll 18a and the long paper winding member 20, thereby completing the printing preparation.

  When the operator presses a start key (not shown) after the preparation for printing is completed, the stepping motors 19 and 24 and the long paper take-up motor 21 are operated to feed the long paper 18 from the long paper roll 18a. At this time, the stepping motors 19 and 24 are operated completely in synchronization with each other, and the conveyance speed by the long paper conveyance roller pair 16 and the conveyance speed by the long paper take-up roller pair 22 are set to be equal. .

  A plate cylinder driving means (not shown) is operated in synchronization with the operations of the motors 19, 21, and 24, and the plate cylinder 5 is rotationally driven in the clockwise direction in FIG. When the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, the press roller 6 swings and presses against the plate cylinder 5, and is supplied from the ink container 9 to the inner peripheral surface of the plate cylinder 5. The ink thus oozed out through the perforated part 5A and the perforated part of the master 8 is transferred to the long paper 18 and a printed image is formed in the image area D1. When the press roller 6 is separated from the outer peripheral surface of the plate cylinder 5, the operations of the motors 19, 21, and 24 are stopped, and the feeding of the long paper 18 is stopped.

  Even when the feeding of the long paper 18 is stopped, the plate cylinder driving means (not shown) continues to operate, and is more predetermined than the opening 5A of the plate cylinder 5 in the next rotation reaches the position corresponding to the press roller 6. The motors 19, 21, and 24 are actuated again before time, and the feeding of the long paper 18 is resumed. When the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, the press roller 6 swings and presses against the plate cylinder 5, and a print image is printed on the image area D2 of the long paper 18. Is formed. By adjusting the predetermined time, the long paper 18 can be used economically by appropriately adjusting the distance DS. The long paper 18 on which the printing has been performed is used after being cut or peeled off after being subjected to a punching process as necessary between the printing and the winding.

  According to the first embodiment, since printing on the long paper 18 can be easily performed by stencil printing, it is easy and inexpensive to perform seal printing or label printing using the long paper 18. It can be carried out. Further, since the long paper 18 is intermittently conveyed, the distance DS between the image areas D1 and D2 can be minimized, and the cost can be reduced by using the long paper 18 economically. Further, since the long paper 18 is used, it is possible to prevent the occurrence of a paper transport jam as compared with printing using a sheet.

  In the above-described printing process, when the identification sensor 46 detects that the ink in the plate cylinder 5 is ultraviolet curable ink, each ultraviolet irradiation lamp 26 is activated and ultraviolet rays are applied to the printing surface of the long paper 18. The ultraviolet curable ink that has been irradiated and transferred onto the long paper 18 is fixed. As a result, even when the long paper 18 is difficult to permeate and dry normal ink such as coated paper, synthetic resin sheet, and thermal paper, the image can be fixed in a short time, and the range of use can be reduced. Can be spread.

  In the first embodiment, press contact of the plate cylinder 5 by the press roller 6 is performed corresponding to the opening 5A, and the conveyance of the long paper 18 by the motors 19, 21, and 24 is performed corresponding to the opening 5A. Although it is configured to intermittently convey, the press cylinder 6 is pressed by the press roller 6 corresponding to the plate-making images of the label images C1 to C4, and the long paper 18 is conveyed by the motors 19, 21, and 24 to the labels. It is good also as a structure which carries out intermittent conveyance corresponding to the platemaking image area | region of the images C1-C4. By adopting such a configuration, when each of the label images C1 to C4 is small, the unmade plate making portion of the master 8 wound corresponding to the opening portion 5A (from the opening portion 5A tip to the plate making image tip). And the transport of the long paper 18 corresponding to the portion from the rear end of the plate-making image to the rear end of the opening 5A), and the cost can be further reduced by using the long paper 18 more economically. be able to. In addition, as a structure which performs press-contact of the plate cylinder 5 by the press roller 6 corresponding to a plate-making image, the structure described in Unexamined-Japanese-Patent No. 2001-301300 is employable, for example.

  FIG. 5 shows a second embodiment of the present invention. The printing device 65 shown in the second embodiment uses a long paper feed roller pair 66 instead of the long paper feed roller pair 16 as compared with the printing device 1 shown in the first embodiment. The long paper feeding means 3 has a slack forming roller pair 67, the long paper winding roller pair 68 is used in place of the long paper winding roller pair 22, and the long paper winding means 4 is a slack forming roller pair. 69 and the long paper conveyance means 70 are different, and the other configurations are the same.

A pair of long paper feed rollers 66 is disposed on the transport path of the long paper 18 and between the long paper roll 18 a and the printing unit 2. The pair of long paper feed rollers 66 includes a drive roller 66a and a driven roller 66b pressed against the drive roller 66a. The drive roller 66a is rotationally driven by a motor 71 whose operation is controlled by a control means (not shown). The
A slack forming roller pair 67 is disposed at a position between the long paper feeding roller pair 66 and the printing unit 2. The slack forming roller pair 67 has a driving roller 67a and a driven roller 67b pressed against the driving roller 67a. The driving roller 67a is rotationally driven by a motor 72 whose operation is controlled by a control means (not shown).

  A slack 18A is formed on the long paper 18 between the long paper feeding roller pair 66 and the slack forming roller pair 67, and a slack 18B is formed on the long paper 18 between the slack forming roller pair 67 and the printing unit 2. Are formed respectively. Below the positions where the slacks 18A and 18B are formed, slack detection sensors 73 and 74, which are proximity sensors, are arranged, and detection signals from the sensors 73 and 74 are output to a control means (not shown). A control means (not shown) controls the operations of the motors 71 and 72 based on the detection signals from the sensors 73 and 74, whereby the slacks 18A and 18B are always formed with a predetermined size during the printing operation.

A long paper take-up roller pair 68 is disposed between the long paper take-up member 20 and the printing unit 2. The long paper take-up roller pair 68 includes a driving roller 68a and a driven roller 68b pressed against the driving roller 68a. The driving roller 68a is rotationally driven by a motor 75 whose operation is controlled by control means (not shown). .
A slack forming roller pair 69 is disposed at a position between the long paper take-up roller pair 68 and the printing unit 2. The slack forming roller pair 69 includes a driving roller 69a and a driven roller 69b pressed against the driving roller 69a. The driving roller 69a is rotationally driven by a stepping motor 76 whose operation is controlled by control means (not shown).

  A slack 18C is formed on the long paper 18 between the long paper take-up roller pair 68 and the slack forming roller pair 69. Below the position where the slack 18C is formed, a slack detection sensor 77 which is a proximity sensor is disposed, and a detection signal from the slack detection sensor 77 is output to a control means (not shown). A control means (not shown) controls the operation of the motor 75 based on the detection signal from the slack detection sensor 77, whereby the slack 18C is always formed with a predetermined size during the printing operation.

  A long paper conveying means 70 is disposed at a position between the printing unit 2 and the slack forming roller pair 69 and facing the ultraviolet irradiation means 25 via the long paper 18 conveying path. The long paper conveying means 70 includes a driving roller 70a and a driven roller 70b, a plurality of metal endless belts 70c stretched between the rollers 70a and 70b, and a suction fan 70d disposed between the rollers 70a and 70b. Etc. The driving roller 70 a is driven to rotate by a motor 78, and the long paper transport unit 70 sucks and transports the long paper 18 printed at the same transport speed as the transport speed of the long paper 18 by the plate cylinder 5.

Hereinafter, the operation of the printing apparatus 65 according to the second embodiment will be described with reference to FIG. In the second embodiment, as in the first embodiment, the plate cylinder 5 is pressed by the press roller 6 in correspondence with the opening portion 5A, and the long paper 18 is intermittently conveyed. The long paper 18 is economically used by shortening the distance DS between the image areas formed on the paper 18.
First, the operator uses the stencil printing apparatus 29 shown in FIG. 3 to wind the master 8 on which the plate-making images (label images C1 to C4) to be printed are wound on the outer peripheral surface of the plate cylinder 5. After winding, the plate cylinder 5 is removed from the stencil printing device 29 and attached to the printing device 65. In the printing device 65, the leading end of the long paper 18 is drawn out from the long paper roll 18a, and the leading ends are a long paper feeding roller pair 66, a slack forming roller pair 67, a slack forming roller pair 69, and a long paper take-up roller. It is fixed to the long paper winding member 20 via the pair 68. Thereafter, the motors 71, 72, 75, 76 are operated, and the slack paper 18 is formed with the slacks 18A, 18B, 18C based on signals from the slack detection sensors 73, 74, 77 as shown in FIG. Thus, preparation for printing is completed.

  When the operator presses a start key (not shown) after the printing preparation is completed, the motors 21, 71, 72, 75, 76, and 78 are operated to feed the long paper 18 from the long paper roll 18a. In synchronization with the operation of the motors 21, 71, 72, 75, 76, 78, the plate cylinder driving means (not shown) is operated, and the plate cylinder 5 is rotationally driven in the clockwise direction in FIG. When the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, the press roller 6 swings and presses against the plate cylinder 5, and is supplied from the ink container 9 to the inner peripheral surface of the plate cylinder 5. The ink thus oozed out through the opening 5A and the punched portion of the master 8 and transferred to the long paper 18 to form a print image in the region D1. When the press roller 6 is separated from the outer peripheral surface of the plate cylinder 5, the operations of the motors 76 and 78 are stopped, and the conveyance of the long paper 18 in the printing unit 2 is stopped.

  The motors 21, 71, 72, 75 continue to operate even after the motors 76, 78 are stopped, and the long paper 18 is fed from the long paper roll 18 a and the long paper winding member 20 is long. The winding of the paper 18 is continued. The conveyance speed of the long paper 18 by the motors 21, 71, 72, 75 is such that the slacks 18A, 18B disappear when the motors 76, 78 are actuated, that is, when a print image is transferred to the long paper 18. And the slack 18C is set so that it does not become so large as to come into contact with the slack detection sensor 77, and when the motors 76 and 78 are stopped, that is, when the print image is not transferred to the long paper 18, The slackness 18A and 18B are set so as not to become so large that they come into contact with the corresponding slackness detection sensors 73 and 74 and the slackness 18C does not disappear. The operation of the motor 78 is completely synchronized with the operation of the stepping motor 76, and the long paper conveyance speed is set to be the same as the long paper conveyance speed by the stepping motor 76.

  On the other hand, the plate cylinder driving means (not shown) continues to operate even after the motors 76 and 78 are stopped, so that the opening 5A of the plate cylinder 5 in the next rotation reaches a position corresponding to the press roller 6. The motors 76 and 78 are actuated again a predetermined time before the transport of the long paper 18 in the printing unit 2 is resumed. When the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, the press roller 6 swings and presses against the plate cylinder 5, and a print image is formed in the area D2 of the long paper 18. The By adjusting the predetermined time, the long paper 18 can be used economically by appropriately adjusting the distance DS. The printed long paper 18 is transported by the long paper transporting means 70, and after being subjected to a punching process as needed before being wound on the long paper winding member 20, it is used after being cut or peeled off. The

According to the second embodiment, the same effect as the first embodiment can be obtained, and since a large load is not applied to the long paper 18, there is a problem that the long paper 18 is cut or stretched. Occurrence can be prevented. In addition, since the slack 18B is formed on the front side of the printing unit 2, a large load is not applied to the long paper 18 during printing, and the occurrence of image misalignment can be prevented. By applying a tension in the direction of arrow Z in FIG. 5 to the long paper 18, it is possible to promote the peeling of the long paper 18 from the outer peripheral surface of the plate cylinder 5. In this case, the slack forming roller pair 67 functions as a tension applying unit.
Further, according to the second embodiment, since the slack 18A is formed between the roller pairs 66 and 67, a large load is caused when the long paper 18 is pulled out from the long paper roll 18a. It is possible to prevent the misalignment of the printed image by transporting the long paper 18 satisfactorily. Further, since the slack 18C is formed between each pair of rollers 68 and 69, it is possible to prevent the positional deviation of the print image due to the conveying force by the pair of long paper take-up rollers 68 reaching the long paper 18.

  Also in the second embodiment, when the identification sensor 46 detects that the ink in the plate cylinder 5 is an ultraviolet curable ink, the ultraviolet irradiation means 25 is activated and applied to the printing surface of the long paper 18. The ultraviolet curable ink transferred onto the long paper 18 is fixed by being irradiated with ultraviolet rays. Also in the second embodiment, the press cylinder 6 is pressed against the area D1 of the label images C1 to C4 by the press roller 6, and the long paper 18 is conveyed by the motors 76 and 78 to the label images. You may employ | adopt the structure conveyed intermittently corresponding to the area | region D1 of C1-C4.

FIG. 6 shows a third embodiment of the present invention. Compared with the second embodiment described above, the third embodiment has a point having the air blowing means 79, a point having the tension applying means 80, a slack forming roller pair 69, a long paper conveying means 70, and an ultraviolet irradiation means 25. Are different in that they are arranged in an inclined manner, and other configurations are the same.
The blowing means 79 has a blowing fan 79a and a casing 79b, and wind force generated by the rotation of the blowing fan 79a is discharged from the opening of the casing 79b, and this wind force is applied to the pressure contact portion between the plate cylinder 5 and the press roller 6. It is configured to act on the long paper 18 that is positioned. The long paper 18, which is pressed against the plate cylinder 5 by the wind force and transferred with the ink, facilitates peeling from the outer peripheral surface of the plate cylinder 5.

The tension applying means 80 includes a swing arm 80a and a roller 80b. One end of the swing arm 80a is swingably supported by the apparatus main body 17 by a support shaft 80c, and a roller 80b having a length longer than the width of the long paper 18 is rotatably supported at the other end. Yes. The roller 80b is wound around the slack 18B portion of the long paper 18, and tension in the direction of the arrow Z1 is applied to the long paper 18 by the weight of the swing arm 80a and the roller 80b.
Arm sensors 81 and 82 composed of proximity sensors are disposed above and below the swing arm 80a, and each sensor 81 and 82 outputs a signal to a control means (not shown) when the swing arm 80a is detected. . A control means (not shown) controls the rotation of the motor 72 on the basis of signals from the sensors 81 and 82, and the swing arm 80a is always positioned between the sensors 81 and 82 so that the slack 18B is formed in a constant size. Thus, a substantially constant tension is applied to the long paper 18 in the direction of the arrow Z1.

  The pair of slack forming rollers 69, the long paper conveying means 70, and the ultraviolet irradiation means 25 are separated from the plate cylinder 5 from a straight line L2 orthogonal to the straight line L1 passing through the center O1 of the plate cylinder 5 and the center O2 of the press roller 6. They are arranged so as to be inclined in the direction by an angle θ. The angle θ is preferably 30 to 45 degrees.

  With the above-described configuration, the wind force by the air blowing unit 79 and the tension by the tension applying unit 80 act on the long paper 18 after printing, and the long paper 18 after printing is conveyed at an angle θ. Since it passes through the path, the long paper 18 is surely peeled off from the outer peripheral surface of the plate cylinder 5 after printing, and in addition to the effects of the second embodiment, the long paper 18 after printing is the outer peripheral surface of the plate cylinder 5. It is possible to reliably prevent the long paper conveyance jam from occurring without being peeled off, and the printing efficiency can be significantly improved.

  FIG. 7 shows a fourth embodiment of the present invention. Compared with the third embodiment described above, the fourth embodiment uses a press roller 85 instead of the press roller 6, has a tension applying means 83 instead of the tension applying means 80, and conveys a long paper. It is different in that it has a long paper conveying means 84 instead of the means 70, and the other configurations are the same. Although not shown in the figure, also in the fourth embodiment, the ultraviolet irradiation means 25 and the air blowing means 79 are arranged at the same positions as in the third embodiment.

  A press roller 85 as a pressing means is rotatably supported between a pair of swing side plates 86 at both ends of a support shaft. The tension applying unit 83 includes a slack detection sensor 88 including a load roller 87 and a proximity sensor. The load roller 87 is rotatably supported between the swing side plates 86, and the tension in the direction indicated by the arrow Z2 in FIG. 7 with respect to the long paper 18 facing the contact portion between the plate cylinder 5 and the press roller 85. In other words, the conveyance resistance is generated. Specifically, it has a high frictional resistance member such as rubber on its peripheral surface, and is arranged with a slight gap with respect to the peripheral surface of the press roller 85 or press contact arrangement with a small press contact force. Has been. Or it is comprised with elastic bodies, such as a foam, and is press-contacted and arranged by the elastic force. The slack detection sensor 88 detects the slack 18B when a predetermined amount or more is formed, and outputs a signal to a control means (not shown).

  The long paper conveying means 84 includes a driving roller 84a and a driven roller 84b, a plurality of metal endless belts 84c stretched between the rollers 84a and 84b, and a suction fan 84d disposed between the rollers 84a and 84b. Etc. The rollers 84 a and 84 b are rotatably supported between the swing side plates 86, and the drive roller 84 a is rotationally driven by a motor 89. Similarly to the long paper conveyance means 70, the long paper conveyance means 84 sucks and conveys the long paper 18 printed at the same conveyance speed as the conveyance speed of the long paper 18 by the plate cylinder 5.

  Each swing side plate 86 is configured to be swingable about a support shaft 84e of the drive roller 84a. Each swing side plate 86 is provided with a cam follower (not shown) that contacts a swing cam (not shown) that is rotated by a rotational force from a plate cylinder drive means (not shown) transmitted by a drive force transmission means (not shown). The moving side plate 86 is configured to swing in synchronization with the rotation of the plate cylinder 5. Along with the swing of each swing side plate 86, the press roller 85 and the long paper conveying means 84 supported by each swing side plate 86 also swing, and this press causes the press roller 85 to move its peripheral surface around the plate cylinder 5. It is close to and away from the circumferential surface. Further, a control means (not shown) controls the rotation of the motor 72 based on a signal from the slack detection sensor 88, and the slack 18B is formed in a constant size so that the long paper 18 is substantially constant toward the arrow Z2. It is comprised so that tension | tensile_strength may act.

  With the above-described configuration, the tension applying unit 83 and the long paper transport unit 84 swing in synchronization with the contact / separation operation of the press roller 85 with respect to the plate cylinder 5. The positional relationship between the paper 84 and the long paper 18 is not changed by the contact / separation operation of the press roller 85, and the conveyance path of the long paper 18 and the direction of tension applied to the long paper 18 are stabilized. In addition to the effects, the long paper 18 after printing can be stably conveyed while being peeled off from the outer peripheral surface of the plate cylinder 5, and the printing efficiency can be further improved.

  FIG. 8 shows a multi-cylinder printing apparatus 90 employing the fifth embodiment of the present invention. Compared with the printing apparatus 65 shown in the second embodiment, the multi-cylinder printing apparatus 90 has a printing unit 91 in addition to the printing unit 2, and a long paper conveyance unit in addition to the long paper conveyance unit 70. The difference is that it has the means 92 and the ultraviolet irradiation means 25 is disposed above the long paper conveying means 92, and the other configurations are the same.

  Similar to the printing unit 2, the printing unit 91 includes a plate cylinder 93 and a press roller 94 as pressing means. The plate cylinder 93 is rotatably supported by the apparatus main body 17 and is driven to rotate in synchronization with the plate cylinder 5 by a plate cylinder driving means (not shown). The plate cylinder 93 has an openable / closable clamper 95 on its outer peripheral surface, and a master 8A with plate making is wound on the outer peripheral surface of the plate cylinder 93. The master 8A is a master made by the stencil printing device 29 shown in FIG. 3, and is drawn from the same master roll 8a as the master 8 wound around the plate cylinder 5. Since a plate-making image different from that is formed, the master 8A is used to distinguish it from the master 8.

  An ink container 96 similar to the ink container 9 is detachably disposed inside the plate cylinder 93. The ink container 96 stores ink of a different color from the ink stored in the ink container 9, and this ink is an ink roller 97 and a doctor roller disposed inside the plate cylinder 93 by an ink pump (not shown). The ink reservoir 99 is formed in the vicinity of 98. The ink in the ink reservoir 99 is supplied in a thin layer on the peripheral surface of the ink roller 97 when passing through the vicinity of the ink roller 97 and the doctor roller 98, and the plate cylinder 93 is pressed by the press roller 94 described later. At this time, the peripheral surface of the ink roller 97 and the inner peripheral surface of the plate cylinder 93 come into contact with each other, and the ink is supplied to the inner peripheral surface of the plate cylinder 93.

  The plate cylinder 93 described above is configured to be detachable from the apparatus main body 17 by guide rails 100 and 101 provided on the apparatus main body 17, and is removed from the apparatus main body 17 by sliding to the front side in FIG. Is configured to be possible. Similarly to the plate cylinder 5, the plate cylinder 93 is slidably moved with respect to the guide rails 100 and 101 by rails (not shown) provided on both sides of a frame (not shown) that rotatably holds the plate cylinder 93. The drive force transmitting disk (not shown) that is configured to be detachable with respect to the plate cylinder 93 is attached to a drive disk (not shown) that is rotatably supported by the rear plate 41 of the apparatus body 17. A hole (not shown) into which an implanted pin (not shown) can be fitted is formed. A driving disk (not shown) receives a rotational driving force from a plate cylinder driving means (not shown) provided in the apparatus main body 17 via a timing belt and a timing pulley (not shown). When the plate cylinder 93 is mounted, a rotational driving force from a plate cylinder driving means (not shown) is transmitted to the plate cylinder 93, and the plate cylinder 93 is rotated. The frame (not shown) is provided with a projection (not shown) for identifying the plate cylinder, and this projection is identified by an identification sensor (not shown) disposed on the apparatus main body 17 side. When it is detected by this identification sensor that the plate cylinder 93 using ultraviolet curable ink is mounted on the apparatus main body 17, the ultraviolet irradiation means 25 described later is operated. Further, a rotary encoder (not shown) is disposed in the vicinity of the outer periphery of the plate cylinder 93 so that the position of the plate cylinder 93 in the rotation direction is sequentially managed.

  A press roller 94 is disposed below the plate cylinder 93. The press roller 6 having the same configuration as the press roller 6 is rotatably supported by a pair of press roller arms (not shown) at both ends of the core, and the pair of press roller arms (not shown) is synchronized with the plate cylinder 5. Then, they are rocked integrally with each other by a rotating cam (not shown), and the press roller 94 is brought into contact with and separated from the outer circumferential surface of the plate cylinder 93 by this rocking. In the fifth embodiment, the press roller 94 presses the peripheral surface against the opening portion of the plate cylinder 93 and separates it from the non-opening portion. In the vicinity of a cam (not shown), press roller locking means (not shown) for holding the press roller 94 at a spaced position where the press roller 94 is separated from the plate cylinder 93 is disposed.

  A long paper transporting unit 92 is disposed at a position between the printing unit 91 and the slack forming roller pair 69 and facing the ultraviolet irradiation unit 25 through the transport path of the long paper 18. Similarly to the long paper conveying means 70, the long paper conveying means 92 is composed of a driving roller 92a and a driven roller 92b, a plurality of metallic endless belts 92c stretched between the rollers 92a and 92b, and the rollers 92a and 92b. It has a suction fan 92d and the like disposed therebetween. The driving roller 92 a is driven to rotate by the motor 102, and the long paper transport unit 92 sucks and transports the long paper 18 printed at the same transport speed as the transport speed of the long paper 18 by the plate cylinder 93.

  In the fifth embodiment, when the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, the opening of the plate cylinder 93 reaches a position corresponding to the press roller 94. As described above, the interval between the plate cylinders 5 and 93, the size of each aperture, and the long paper conveyance speed are set.

  The operation of the printing apparatus 90 in the fifth embodiment will be described below based on FIG. In the fifth embodiment, as in the first to fourth embodiments, the plate cylinder 93 is pressed by the press roller 94 in correspondence with the opening portion of the plate cylinder 93 and the long paper 18 is intermittently formed. The long paper 18 is economically used by reducing the distance DS between the image areas that are conveyed and formed on the long paper 18.

  First, the operator uses the stencil printing device 29 to sequentially wind the masters 8 and 8A on which the platemaking images to be printed are wound on the outer peripheral surfaces of the plate cylinders 5 and 93, respectively. Thereafter, the plate cylinders 5 and 93 are sequentially removed from the stencil printing apparatus 29 and mounted on the printing apparatus 90. In the printing apparatus 90, the leading end of the long paper 18 is pulled out from the long paper roll 18 a, and the leading ends of the long paper feeding roller pair 66, the slack forming roller pair 67, the slack forming roller pair 69, and the long paper take-up roller It is fixed to the long paper winding member 20 via the pair 68. Thereafter, the motors 71, 72, 75, 76 are operated, and the long paper 18 is formed with the slacks 18A, 18B, 18C on the basis of signals from the slack detection sensors 73, 74, 77, as shown in FIG. Thus, preparation for printing is completed.

  When the operator presses a start key (not shown) after the preparation for printing is completed, the motors 21, 71, 72, 75, 76, 78, and 102 are operated to feed the long paper 18 from the long paper roll 18a. In synchronization with the operation of the motors 21, 71, 72, 75, 76, 78, 102, the plate cylinder driving means (not shown) is operated, and the plate cylinders 5, 93 are respectively rotated in the clockwise direction in FIG. . When the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, the press roller 6 swings and presses against the plate cylinder 5, and is supplied from the ink container 9 to the inner peripheral surface of the plate cylinder 5. The first color ink oozes out through the opening 5A and the punched portion of the master 8, and is transferred to the long paper 18 to form a print image in the image area D1. When the press roller 6 is separated from the outer peripheral surface of the plate cylinder 5, the operations of the motors 76, 78, 102 are stopped, and the conveyance of the long paper 18 in the printing unit 2 is stopped.

  The motors 21, 71, 72, and 75 continue to operate even after the motors 76, 78, and 102 are stopped, so that the long paper 18 is fed from the long paper roll 18a and applied to the long paper winding member 20. The winding of the long paper 18 is continued. The conveyance speed of the long paper 18 by the motors 21, 71, 72, and 75 is such that the slacks 18A and 18B disappear when the motors 76, 78, and 102 are operated, that is, when a print image is transferred to the long paper 18. It is set so that the slack 18C does not become so large that it comes into contact with the slack detection sensor 77, and when the motors 76, 78, 102 are stopped, that is, the print image is not transferred to the long paper 18. At this time, the slackness 18A and 18B are set so as not to become so large that they come into contact with the corresponding slackness detection sensors 73 and 74, and the slackness 18C does not disappear. The operations of the motors 78 and 102 are completely synchronized with the operation of the stepping motor 76, and the long paper conveyance speed is set to be the same as the long paper conveyance speed by the stepping motor 76.

  On the other hand, the plate cylinder driving means (not shown) continues to operate even after the motors 76, 78, 102 are stopped, and the opening 5 </ b> A of the plate cylinder 5 in the next rotation reaches a position corresponding to the press roller 6. Each of the motors 76, 78, and 102 is actuated again a predetermined time before the transport of the long paper 18 in the printing unit 2 is resumed. When the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, the press roller 6 swings and presses against the plate cylinder 5, and a print image is formed in the area D2 of the long paper 18. The Further, in the next rotation, the opening 5A of the plate cylinder 5 reaches a position corresponding to the press roller 6, and at the same time, the opening of the plate cylinder 93 reaches a position corresponding to the press roller 94, and the press roller 94 is shaken. By moving, the print image of the second color is formed in the region D1 of the long paper 18 so as to overlap the print image of the first color. By adjusting the above-mentioned predetermined time, the distance DS can be adjusted as appropriate, and the long paper 18 can be used economically. The long paper 18 on which multicolor printing is performed by transferring two colors of ink from the plate cylinders 5 and 93 is conveyed by the long paper conveying means 92 and is taken up by the long paper winding member 20. After a punching process is added as necessary, it is used after being cut or peeled off.

According to the fifth embodiment, the same effects as those of the second embodiment can be obtained, and multicolor printing can be easily performed. In the above-described embodiment, an example in which two-color printing is performed using the plate cylinder 5 and the plate cylinder 93 has been described. However, three-color printing is easily performed when three plate cylinders are used, and four-color printing is easily performed when four plate cylinders are used. It can be carried out.
Also in the fifth embodiment, when the identification sensor 46 detects that at least one of the inks in the plate cylinders 5 and 93 is an ultraviolet curable ink, the ultraviolet irradiation means 25 is activated and the long length is long. The printing surface of the paper 18 is irradiated with ultraviolet rays, and the ultraviolet curable ink transferred onto the long paper 18 is fixed. Also in the fifth embodiment, the plate cylinders 5 and 93 are pressed against the areas D1 of the label images C1 to C4 by the press rollers 6 and 94, and the long lengths of the motors 76, 78, and 102 are used. You may employ | adopt the structure which conveys the paper 18 intermittently corresponding to the area | region D1 of each label image C1-C4. In this case, the plate cylinder driving means for driving the plate cylinders 5 and 93 are separately provided, the first color printed image transferred on the plate cylinder 5 and the plate-making image on the master 8A wound around the plate cylinder 93. Must be synchronized with the rotation of the plate cylinders 5 and 93.

1 is a schematic front view of a printing apparatus that employs a first embodiment of the present invention. It is a schematic plan view which shows the principal part of the printing part of the printing apparatus used for the 1st Embodiment of this invention. It is a schematic front view which shows the stencil printing apparatus which can mount | wear with the plate cylinder used for each 1st thru | or 5th embodiment of this invention. FIG. 7 is a schematic diagram showing (a) a plate cylinder (b) a plate-making image formed on a master, and (c) a print image formed on a long paper used in each of the first to fifth embodiments of the present invention. It is a schematic front view of the printing apparatus which employ | adopted the 2nd Embodiment of this invention. It is the schematic of the principal part of the printing part which shows the 3rd Embodiment of this invention. It is the schematic of the principal part of the printing part which shows the 4th Embodiment of this invention. It is a schematic front view of the printing apparatus which employ | adopted the 5th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,65 Printing apparatus 2,91 Printing part 3 Long paper feeding means 4 Long paper winding means 5,93 Plate cylinder 5A Opening part 5B Non-opening part 6,94 Pressing means (press roller)
8,8A Master for stencil printing (master)
DESCRIPTION OF SYMBOLS 17 Apparatus main body 18 Long paper 18A, 18B, 18C Looseness 25 Ultraviolet irradiation means 29 Stencil printing device 31 Plate making part 33 Plate discharging part 67 Tension giving means (slack forming roller pair)
70, 84, 92 Long paper conveying means 80, 83 Tension applying means 90 Printing device (multi-cylinder printing device)
C1, C2, C3, C4 Prepress image (label image)
O1 Center of plate cylinder O2 Center of pressing means L1 Straight line passing through center of printing cylinder and center of pressing means L2 Straight line orthogonal to straight line L1

Claims (12)

  A stencil printing master having a perforated part and a non-perforated part, on which a stencil printing image is formed, is wrapped around a plate cylinder rotatably and detachably supported on the main body of the apparatus, and is in contact with and separated from the plate cylinder A printing unit having flexible pressing means, a long paper feeding unit for feeding a long paper wound in a roll shape toward the printing unit, and a long paper for winding the printed long paper in a roll shape A paper winding means, the pressing means is in pressure contact with the plate cylinder corresponding to the opening portion, and the long paper feeding means and the long paper winding means are corresponding to the opening portion. A printing apparatus that intermittently conveys a long sheet of paper. The printing apparatus according to claim 1.
The pressing means is pressed against the plate cylinder corresponding to the plate-making image, and the long paper feeding means and the long paper winding means intermittently convey the long paper corresponding to the plate-making image. A printing device.   A stencil printing master having a perforated part and a non-perforated part, on which a stencil printing image is formed, is wrapped around a plate cylinder rotatably and detachably supported on the main body of the apparatus, and is in contact with and separated from the plate cylinder A printing unit having flexible pressing means, a long paper feeding unit for feeding a long paper wound in a roll shape toward the printing unit, and a long paper for winding the printed long paper in a roll shape The long paper feeding means and the long paper winding means convey the long paper so that the slack is always generated before and after the printing section, and the pressing means is the opening section. The printing apparatus is characterized in that the long paper take-up means intermittently conveys the long paper in correspondence with the opening portion. The printing apparatus according to claim 3.
The printing apparatus is characterized in that the pressing means is in pressure contact with the plate cylinder corresponding to the plate-making image, and the long paper take-up means intermittently conveys the long paper in correspondence with the plate-making image. The printing apparatus according to any one of claims 1 to 4,
The stencil printing apparatus is detachable from a stencil printing apparatus having at least a stencil making part and a stencil printing part and winding a new stenciled master around the stencil printing machine. A printing apparatus characterized in that the plate-making and feeding plate are used. The printing apparatus according to any one of claims 1 to 5,
In the case where ultraviolet irradiation means is provided on the downstream side of the sheet conveyance direction of the contact position between the plate cylinder and the pressing means, and the ultraviolet ray curable ink is used as the plate cylinder, the ultraviolet irradiation is performed. A printing apparatus characterized by operating means. The printing apparatus according to any one of claims 1 to 6,
The long paper feeding unit applies tension to the long paper so that the long paper pressed against the plate cylinder by the pressing unit is separated from the plate cylinder when the pressing unit is separated from the plate cylinder. A printing apparatus comprising tension applying means. The printing apparatus according to claim 7.
The printing apparatus according to claim 1, wherein the tension applying unit forms a slack in the long paper at a position immediately upstream of a contact position between the plate cylinder and the pressing unit in the long paper conveyance direction. The printing apparatus according to claim 7.
The printing apparatus according to claim 1, wherein the tension applying unit generates a conveyance resistance for the long paper at a position immediately upstream of a contact position between the plate cylinder and the pressing unit in a long paper conveyance direction. The printing apparatus according to any one of claims 1 to 9,
There is a long paper conveyance means for conveying the long paper after printing to a downstream position in the long paper conveyance direction of the contact position between the plate cylinder and the pressing means, and the conveyance path of the long paper conveyance means is A printing apparatus, wherein the printing apparatus is arranged so as to be inclined by 30 degrees or more in a direction away from the plate cylinder from a straight line orthogonal to a straight line passing through the center of the plate cylinder and the center of the pressing means. The printing apparatus according to claim 10.
The printing apparatus, wherein the long paper conveying unit is provided integrally with the pressing unit that contacts and separates from the plate cylinder, and is configured to be swingable in accordance with the pressing and separating operation of the pressing unit. . The printing apparatus according to any one of claims 1 to 4,
A printing apparatus comprising: a plurality of the printing units; and a long paper conveying unit that conveys a long paper after printing between the printing units.

Images