JP5028325B2 - Printing paper surface treatment equipment - Google Patents

Description

  The present invention relates to a printing paper surface treatment apparatus for increasing the added value of a printing surface by transferring a gold foil, an embossed pattern, a hologram pattern, or the like by pressing a transfer film against the printed printing paper.

There has been proposed a glossing device that adds value to the printing paper printed as described above. This consists of applying a UV curable resin varnish (also called varnish) to the printing paper printed by the printing unit, and pressing the transfer film against the printing paper coated with the varnish by this varnish unit. A hologram forming unit for printing, and the hologram forming unit performs printing with a pressure drum that conveys printing paper, a pair of pressure rollers that press a transfer film against the printing paper on the pressure drum, and a pressure roller. An ultraviolet irradiation unit that cures the varnish when the transfer film is pressed against the paper, a retracted position that irradiates the printing paper with ultraviolet rays from the ultraviolet irradiation unit on the irradiation surface side of the ultraviolet irradiation unit (downward), and ultraviolet irradiation A shutter position for switching to a blocking position for blocking ultraviolet rays from the section, and the pair of pressing rollers moved upward with respect to the impression cylinder When the hologram is not formed (surface treatment), the pressing roller is positioned at the retracted position moved upward with respect to the impression cylinder. By switching the shutter means to the blocking position, the printing paper is prevented from being irradiated with ultraviolet rays (see, for example, Patent Document 1).
JP 2006-315229 A (see FIGS. 1 and 2)

  According to the polishing apparatus of Patent Document 1, since a special shutter means is required, there is a disadvantage that the number of parts is increased, and the shutter means is disposed between the impression cylinder and the ultraviolet irradiation unit. Due to the arrangement, the ultraviolet irradiation section cannot be arranged as close as possible to the impression cylinder. For this reason, the ultraviolet rays irradiated from the ultraviolet irradiation section cannot be used efficiently, and a large-sized ultraviolet irradiation section must be used. There was a problem of inviting. If the hologram is not formed instead of the shutter means, it is conceivable to switch the UV irradiation unit from ON to OFF, but the UV irradiation unit is immediately used when switching from OFF to ON again. Since this is not possible, the work efficiency is reduced, and this method is actually difficult to use.

  In view of the above-described situation, the present invention intends to solve the problem that the increase in the number of parts can be suppressed, and the ultraviolet rays can be irradiated to the printing paper when not in use, while the ultraviolet rays can be efficiently irradiated at the time of use. It is an object of the present invention to provide a sheet-fed printing press capable of reliably preventing the sheet.

The surface treatment apparatus for printing paper according to the present invention conveys a varnish application unit that applies an ultraviolet curable resin varnish to the conveyed printing paper, and the printing paper coated with the ultraviolet curable resin varnish at the varnish application unit. A cylinder that presses the transfer film against the printing paper on the cylinder, and an ultraviolet irradiation unit that cures the ultraviolet curable resin varnish of the printing paper on which the transfer film is pressed by the film pressing part. A printing paper surface treatment apparatus comprising: the film pressing unit configured to be movable so as to be separated from or approaching the cylinder, and the ultraviolet irradiation unit being separated from or approached to the cylinder. In the position where the film pressing part is close to the cylinder, the ultraviolet irradiation part is close to the cylinder, and the film pressing part is separated from the cylinder. The position the ultraviolet irradiation unit is characterized by being configured such that a position spaced from the barrel.
When the surface treatment of the printing paper is not performed, the film pressing unit is moved to a position separated from the cylinder so that the ultraviolet irradiation unit is separated from the cylinder and the printing paper is irradiated with ultraviolet rays. Can be prevented. When the surface treatment of the printing paper is performed, the film pressing portion is moved to a position close to the cylinder so that the ultraviolet irradiation section is close to the cylinder, and the ultraviolet curable resin varnish of the printing paper is removed. It can be cured.

  One driving means for separating or approaching the film pressing part or the ultraviolet irradiation part with respect to the barrel is provided, and both are used to move the film pressing part and the ultraviolet irradiation part integrally by the driving means. An interlocking mechanism for interlocking may be provided.

  The interlocking mechanism supports the film pressing unit and the ultraviolet irradiation unit, and is configured to be movable so as to be separated from or approach the body, and a guide member for guiding the support member And the drive means may include an actuator for moving the support member.

  A supply roll around which the transfer film is wound and fed out, one or more pressing rollers for pressing the transfer film sent from the supply roll against the printing paper on the cylinder, and the transfer roller using the pressing roller A winding roll that winds up the transfer film that is peeled off from the printing paper after pressing the film, and the film pressing portion is formed by the pressing roller of the pressing roller and the transfer film. You may be comprised with the part pressed on the upper printing paper.

  The ultraviolet irradiation section is composed of an even number of ultraviolet lamps, and the even number of ultraviolet lamps are distributed in the same number on both sides in the printing paper conveyance direction with respect to the vertical line passing through the rotation center of the cylinder, and the distributed ultraviolet lamps are arranged on the vertical line. You may arrange | position so that it may become a substantially symmetrical position on both sides.

  The ultraviolet irradiation unit may include ultraviolet irradiation control means for irradiating ultraviolet rays at both a position close to and a distance from the body.

  When the surface treatment apparatus for printing paper according to any one of claims 1 to 6 is stopped, the film pressing unit and the ultraviolet irradiation unit start moving to the separated position, and the ultraviolet irradiation unit You may provide the emergency stop control means to continue ultraviolet irradiation for a predetermined time.

  It is possible to eliminate the need for conventional shutter means and prevent an increase in the number of parts by simply configuring the UV irradiation unit to move away from or move closer to the cylinder as the film pressing unit moves. can do. This makes it possible to cure the UV curable resin varnish efficiently by bringing the UV irradiation part as close as possible to the body when performing the surface treatment, and the UV irradiation part can be completed with the minimum necessary capacity. Thus, the entire apparatus can be reduced in size. When the surface treatment is not performed, since the ultraviolet irradiation unit is separated from the cylinder, the printing paper can be prevented from being irradiated with ultraviolet rays, and thus the printing paper is not affected. .

  One driving means for separating or approaching the film pressing part or the ultraviolet irradiation part with respect to the barrel is provided, and both are used to move the film pressing part and the ultraviolet irradiation part integrally by the driving means. When the interlocking mechanism to be interlocked is provided, the film pressing part and the ultraviolet irradiation part can be moved integrally through the interlocking mechanism only by operating or stopping one driving means. The configuration can be made simpler than the configuration driven by separate driving means.

  The interlocking mechanism supports the film pressing unit and the ultraviolet irradiation unit, and is configured to be movable so as to be separated from or approach the body, and a guide member for guiding the support member When the driving means includes an actuator for moving the support member, the film pressing unit and the ultraviolet irradiation unit can be moved integrally only by moving the support member by the actuator. Can be made. At the time of this movement, the support member in which the film pressing part and the ultraviolet irradiation part are supported by the guide member can be smoothly moved.

  A supply roll around which the transfer film is wound and fed out, one or more pressing rollers for pressing the transfer film sent from the supply roll against the printing paper on the cylinder, and the transfer roller using the pressing roller A winding roll that winds up the transfer film that is peeled from the printing paper after pressing the film, and the film pressing portion is located on the cylinder by the pressing roller of the pressing roller and the transfer film. And the portion pressed against the printing paper on the cylinder by the pressure roller and the pressure roller of the transfer film. Since it can be done with a small thing that can be supported, the weight can be reduced by that amount, using an actuator with small capacity, It is possible to reduce the size of the 置全 body.

  The ultraviolet irradiation section is composed of an even number of ultraviolet lamps, and the even number of ultraviolet lamps are distributed in the same number on both sides in the printing paper conveyance direction with respect to the vertical line passing through the rotation center of the cylinder, and the distributed ultraviolet lamps are arranged on the vertical line. If the UV lamps are arranged so as to be in almost symmetrical positions, the UV lamps can be arranged in a balanced manner with the vertical line in between. And the ultraviolet irradiation unit can be moved, and for example, there is an advantage that the size of the apparatus in the transport direction of the printing paper can be reduced as compared with a configuration in which the unit is moved obliquely upward.

  When the ultraviolet irradiation unit is provided with ultraviolet irradiation control means for irradiating ultraviolet rays both at a position close to and away from the barrel, the state of always irradiating ultraviolet rays is maintained. Therefore, even if the ultraviolet irradiation unit located at a position separated from the body is moved to the approaching position, the necessary ultraviolet rays can be irradiated immediately.

  When the surface treatment apparatus for printing paper is in an emergency stop, the film pressing unit and the ultraviolet irradiation unit start moving to the separated position, and the ultraviolet irradiation unit continues the ultraviolet irradiation for a predetermined time. When the surface treatment apparatus is brought to an emergency stop, even when there is printing paper coated with an ultraviolet curable resin varnish between the film pressing unit and the cylinder, the ultraviolet irradiation unit is moved to the separated position. The UV curable resin varnish can be cured immediately by the UV irradiating unit irradiating the UV curable resin varnish with the UV irradiating part while starting to move, so that the UV curable resin varnish adheres to the transfer film. There is an advantage that the transfer film can be reused.

  In FIG. 1, a resin varnish is applied to the printing surface to give gloss, and the transfer film 5 is pressed on the printed surface to transfer the pattern or the like of the transfer film having an embossed pattern or a hologram pattern. 1 shows an example of a printing machine provided with a surface treatment device 6 that can process the printing surface by transferring the metal transfer layer of the transfer film 5 having a metal transfer layer or the like. The printing machine includes a sheet feeding unit 1 for feeding sheets 2 as printing sheets one by one from a sheet stacking unit by a feeder device, a sheet separating device, and the like, and a sheet 2 from the sheet feeding unit 1 A printing unit 3 for performing printing, a varnish application unit 4 for applying (coating) an ultraviolet curable resin varnish (also referred to as a varnish) to the sheet 2 printed by the printing unit 3, and the varnish application unit A surface treatment device 6 for pressing the transfer film 5 on the ultraviolet curable resin varnish of the sheet 2 coated with the ultraviolet curable resin varnish 4 to perform surface processing of the sheet 2; A paper discharge unit 7 is provided for discharging the sheet 2 whose surface is processed by the surface processing apparatus 6. Here, the printing unit 3 includes five printing units 8, 9, 10, 11, and 12 so that printing of five colors can be performed, but printing of colors other than five colors, that is, one color or two or more colors. It may be a printing unit capable of Further, although the paper discharge unit 7 is constituted by a chain conveying device provided with a gripper, it may be a printing machine without the paper discharge unit 7, or the specific parts of the parts constituting the printing machine. The configuration is not limited to that shown in the figure. Further, although a sheet is used as the printing paper, a continuous long paper may be used. Further, the surface treatment apparatus 6 may be used by being incorporated in a printing machine, or may be used alone without being incorporated in a printing machine.

  The printing units 8 to 12 include printing impression cylinders 8A to 12A and transfer cylinders 8B to 12B. Although not shown, each of the cylinders 8A to 12A and 8B to 12B has grippers for gripping the fed sheet 2 with nail bases and claws at two locations in the circumferential direction (one location). Or three or more locations). The varnish application unit 4 includes a varnish cylinder 4A to which an ultraviolet curable resin varnish is supplied, and an impression cylinder 4B for applying the ultraviolet curable resin varnish to the sheet 2 printed in a facing manner. And a transfer cylinder 14 for transferring the sheet 2 to the cylinders 4A and 4B. The cylinders 14 and 4B are also provided with grippers for gripping the sheet 2 fed out in the same manner as described above with the nail base and the claws at two locations (one or three or more locations) in the circumferential direction.

As shown in FIGS. 1 and 2, the surface treatment apparatus 6 has two grippers (one or three in the circumferential direction) for gripping the sheet 2 from the impression cylinder 4 </ b> B, similarly to the varnish application unit 4. An upstream transfer cylinder 18 provided at the position of the transfer cylinder 18, and a downstream impression cylinder (which may be simply referred to as a cylinder) 19 that receives the sheet 2 from the transfer cylinder 18. A film pressing portion F that presses the transfer film 5 against the sheet 2 on the cylinder 19 and an ultraviolet ray that cures the UV curable resin varnish of the sheet 2 on which the transfer film 5 is pressed by the film pressing portion F. And an irradiation unit 20. Accordingly, an embossed pattern or a hologram pattern is formed on the ultraviolet curable resin varnish by pressing the transfer film 5 against the sheet 2 on the impression cylinder 19 while feeding it in the same direction as the impression cylinder 19 on the downstream side. At the same time, the transfer film 5 is attached to the sheet 2 by using the varnish as an adhesive, and the UV curable resin varnish is cured by transmitting ultraviolet light through the attached transfer film 5. Thus, the varnish having the pattern formed on the sheet 2 can be integrated. Then, when the transfer film 5 and the sheet 2 that have been moved to the end in the transport direction after being integrated move to the side away from each other, both of them are peeled off, and the transfer film 5 is wound up as described later. The sheet 2 integrated with the cured ultraviolet curable resin varnish wound around the roll 26 is delivered to the paper discharge unit 7. Although the transfer cylinder 18 is provided as a constituent element of the surface treatment apparatus 6, the surface treatment apparatus 6 may be omitted from the transfer cylinder 18. Further, the transfer cylinder 18 may be implemented by another transport device such as a chain transport device. By pressing the transfer film 5 against the ultraviolet curable resin varnish of the sheet 2, there is an advantage that the coated surface of the ultraviolet curable resin varnish can be smoothed and the glossiness can be increased. As described above, the ultraviolet rays from the ultraviolet irradiation unit 20 arranged above the transfer film 5 pressed against the sheet 2 on the impression cylinder 19 are transferred between the transfer film 5 and the sheet 2. In order to be able to irradiate the sandwiched UV curable resin varnish, the transfer film 5 uses a material that allows UV light to pass through, for example, a transparent synthetic resin film.

  As shown in FIG. 3, the ultraviolet irradiating unit 20 includes cases 21 and 22 in which two (even if four or more) ultraviolet lamps 21A and 22A are built, and the two ultraviolet rays. The same number of lamps 21A and 22A are distributed to the vertical line S passing through the rotation center X of the impression cylinder 19 on both sides in the printing paper conveyance direction, and the distributed ultraviolet lamps 21A and 22A are substantially symmetrical with respect to the vertical line S. As described later, the ultraviolet lamps 21A and 22A can be smoothly moved in the vertical direction without rolling. Further, the ultraviolet lamps 21A, 22A are provided so as to be inclined so as to intersect the horizontal direction so that the lower end surfaces (irradiation surfaces) of the ultraviolet lamps 21A, 22A are substantially parallel to the surface of the impression cylinder 19. However, depending on the case, it can be provided so as to be parallel to the horizontal direction.

  As shown in FIGS. 2 and 3, the film pressing portion F is configured to be movable so as to be separated from or approaching the impression cylinder 19, and the ultraviolet irradiation unit 20 is separated or approached from the impression cylinder 19. In the position where the film pressing part F approaches the impression cylinder 19 (position indicated by a solid line in the figure), the ultraviolet irradiation part 20 approaches the impression cylinder 19 (in the figure). In the position where the film pressing part F is separated from the impression cylinder 19 (position indicated by the two-dot chain line in the figure), the ultraviolet irradiation part 20 is separated from the impression cylinder 19 (in the figure 2). Next, the configuration will be described.

  First, the surface treatment device 6 will be described in detail. As shown in FIGS. 1 and 2, the transfer film 5 is wound and fed out, and the transfer roll 23 fed from the feed roll 23 is wound. Two (or one or three or more) pressing rollers 24 and 25 that press the film 5 against the printing paper 2 on the impression cylinder 19, and the transfer film 5 is pressed by the pressing rollers 24 and 25. A winding roll 26 that winds up the transfer film 5 that is peeled off from the post-printing paper, and the film pressing portion F includes the pressing rollers 24 and 25 and the pressing roller 24 of the transfer film 5. 25, and a portion 5A pressed against the sheet 2 on the impression cylinder 19. R1 to R10 shown in FIG. 2 are film guiding rollers disposed between the supply roll 23 and the pressing roller 24 located on the upstream side in the transport direction. R13 to R16 are film guide rollers disposed between the pressing roller 25 and the take-up roll 26 located on the downstream side in the transport direction. The pressing roller 25 located on the downstream side in the conveying direction is arranged at a position spaced apart from the impression cylinder 19 by a set distance, so that the transfer film 5 and the sheet 2 are smoothly separated (peeled). However, the pressing roller 25 may be in pressure contact with the pressure drum 19.

  One driving means for separating or approaching the film pressing part F or the ultraviolet irradiation part 20 with respect to the impression cylinder 19 is provided, and the film pressing part F and the ultraviolet irradiation part 20 are integrated by the driving means. It is equipped with an interlocking mechanism that interlocks both of them to move them. That is, by setting one of the film pressing unit F or the ultraviolet irradiation unit 20 to be separated from or approaching the impression cylinder 19 by one driving unit, the other can be moved integrally by the interlocking mechanism. It has a configuration that can be done.

  Specifically, the interlocking mechanism includes the pressing rollers 24 and 25 constituting the film pressing portion F, the transfer film 5 hanging between the pressing rollers 24 and 25, and the two ultraviolet irradiation portions 20. A plate shape that supports the cases 21 and 22 each provided with an ultraviolet lamp (not shown) and is configured to be movable so as to be separated from or approach the impression cylinder 19 and whose thickness direction is a horizontal direction. Support member 27 and a pair of guide members 28 and 28 for guiding the support member 27, and the driving means includes an air cylinder 29 as an actuator for moving the support member 27. . Each of the guide members 28 is fixed to the casing 6A of the surface treatment apparatus 6 in the vertical direction via a fixing member 28A having a long cross-sectional shape that is long in the vertical direction, and a bearing or the like (not required) on the fixing member 28A. The movable member 28B is smoothly and movably packaged, but may have other configurations.

  A tooth portion 29a that meshes with a gear 30 that is rotatably fixed to the casing 6A of the surface treatment device 6 is formed on the telescopic rod 29A of the air cylinder 29, and the rotational force of the gear 30 that is rotated by the expansion and contraction of the telescopic rod 29A. The lower end of the rack 31 provided with the tooth portion 31a for converting the vertical movement force into the vertical movement force is coupled to the upper end of the support member 27 at the substantially central portion in the sheet conveyance direction. Therefore, when the surface treatment is not performed, the gear 30 rotates counterclockwise by extending the telescopic rod 29A of the air cylinder 29 to the position indicated by the two-dot chain line in FIGS. While moving to the upper position shown with a dashed-two dotted line, the support member 27 is moved to an upper position. As a result, the film pressing part F (the pressing rollers 24 and 25 and the transfer film 5 between the pressing rollers 24 and 25) and the ultraviolet irradiation part 20 (two ultraviolet lamps 21A and 22A) are used as the impression cylinder 19. On the other hand, it can be separated upward. In order to perform the surface treatment from this state, the telescopic rod 29A of the air cylinder 29 is shortened to the position indicated by the broken line in FIGS. 2 and 3, thereby the film pressing portion F (the pressing rollers 24, 25 and The transfer film 5) between the pressing rollers 24, 25 and the ultraviolet irradiation section 20 (two ultraviolet lamps 21A, 22A) are brought close to the impression cylinder 19 (see solid lines in FIGS. 2 and 3). Be able to.

  The ultraviolet irradiation unit 20 includes ultraviolet irradiation control means 32 (see FIG. 2) that always irradiates ultraviolet rays at both a position close to and a distance from the impression cylinder 19. As described above, the ultraviolet irradiation unit 20 (the two ultraviolet lamps 21A and 22A) is connected to the impression cylinder as described above even when the ultraviolet irradiation unit 20 is configured to irradiate ultraviolet rays even at a position away from the impression cylinder 19. The sheet 19 can be sufficiently separated (positioned at the upper retracted position), so that the sheet is not adversely affected. Moreover, when it is desired to perform the surface treatment, the ultraviolet irradiation unit 20 at a position separated from the impression cylinder 19 is positioned at an approaching position approaching the impression cylinder 19 so that the ultraviolet irradiation is always performed. The ultraviolet irradiation unit 20 can immediately irradiate the sheet side with ultraviolet rays.

  2 and 3, the film pressing unit F (the pressing rollers 24, 25 and the transfer film 5 hanging between the pressing rollers 24, 25) and the ultraviolet irradiation unit 20 (two Although the ultraviolet lamps 21A, 22A) are configured to approach or separate from the impression cylinder 19, the film pressing unit F and the ultraviolet irradiation unit 20 may be configured to approach or separate separately using two actuators. Instead of moving the ultraviolet irradiation unit 20 in the vertical direction, for example, the case 21 or 22 constituting the ultraviolet irradiation unit 20 is rotatably supported and is configured to be driven and rotated by an actuator. The 22A irradiation surface may be configured to be driven by an actuator so that the direction is changed so that it is not irradiated onto the conveyed sheet.

  The paper discharge unit 7 includes a transport device that receives the sheet 2 processed and transported by the processing device and transports it to a predetermined position. This transport device includes a pair of left and right sprockets 7A and 7B in which grippers (not shown, but the basic configuration is the same as that of the gripper described above) are disposed at both ends in the sheet transport direction. It is hung on a pair of left and right chains 7C, which is an endless traveling body hung on (see FIG. 1).

  When the surface treatment device 6 is in an emergency stop, that is, when the printing press is brought to an emergency stop, the surface treatment device 6 driven in synchronization with the printing press is stopped in synchronization with the printing press. The pressing unit F and the ultraviolet irradiation unit 20 start to move to the separated position, and the ultraviolet irradiation unit includes an emergency stop control means 33 (see FIG. 4) for continuing the ultraviolet irradiation for a predetermined time. Thus, even when the sheet 2 coated with the ultraviolet curable resin varnish exists between the film pressing unit F and the impression cylinder 19 when the surface treatment device 6 is stopped in an emergency, the ultraviolet irradiation unit 20 The ultraviolet irradiating unit 20 irradiates the ultraviolet curable resin varnish with ultraviolet rays while starting to move to the separated position, whereby the ultraviolet curable resin varnish can be immediately cured.

  Further, when the transfer film 5 having a metal transition layer such as a gold foil is used, if the surface treatment device 6 is stopped in an emergency and the ultraviolet irradiation is continued as described above, for example, the transfer film 5 When the ultraviolet rays are concentrated and irradiated on the same part of the metal transition layer, the metal transition layer may be dissolved. If the metal transition layer is dissolved, it may adversely affect the sheet 2 or the peripheral parts constituting the surface treatment apparatus. For this reason, when the transfer film 5 having a metal transition layer such as a gold foil is used, if the surface treatment device 6 is emergency stopped, the irradiation from the ultraviolet irradiation unit 20 is immediately stopped and at the same time the film pressing The part F and the ultraviolet irradiation part 20 are provided with second emergency stop control means 34 (see FIG. 4) for starting movement to the separated position.

Therefore, when the transfer film 5 having a metal transition layer such as a gold foil is used, emergency stop control can be performed by the second emergency stop control means 34. When using an embossed pattern or a hologram pattern that does not have a metal transition layer such as a gold foil, the two control means 33 are provided so that the emergency stop control means 33 can perform emergency stop control. , 34 is preferably configured to be selectable.
That is, when the surface treatment apparatus 6 is stopped in an emergency, the touch monitor (not shown) is selected so that the operator can select the first mode in which the ultraviolet irradiation is continued and the second mode in which the ultraviolet irradiation is immediately terminated. A button (mode switching means) is provided. In addition, since the transfer film for transferring the metal transfer layer such as the gold foil cannot be reused, there is no problem even if the ultraviolet curable resin varnish adheres to the transfer film. For this reason, the ultraviolet irradiation can be immediately terminated when the surface treatment device 6 is brought to an emergency stop during the transfer for transferring the metal transfer layer by the transfer film for transferring the metal transfer layer such as a gold foil.

The emergency stop control by the two control means 33 and 34 will be specifically described based on the flowchart of FIG.
It is confirmed whether or not the emergency stop control of the surface treatment apparatus 6 has been started (step S1). If the emergency stop control of the surface treatment apparatus 6 has been started, the process proceeds to the next step, and the surface treatment apparatus 6 is started. Is operating in conjunction with the printing press, that is, whether or not the surface treatment device 6 is in a linked operation (step S2).
If it is in operation, it is confirmed whether the printing press is in an emergency stop (step S3). If it is determined that it is not an emergency stop, the ultraviolet irradiation is continued (step S4), and the control is terminated. Note that the emergency stop of the printing press includes the case where the printing press is urgently stopped artificially and the case where the printing press itself detects the occurrence of a trouble and automatically stops the emergency.

If it is determined that the printing press is in an emergency stop, the irradiation mode is confirmed based on the output signal from the selection button (step S5). When it is determined that the irradiation mode is the first mode, the process proceeds to the control by the emergency stop control means 33, and the ultraviolet irradiation unit 20 and the film pressing unit F are raised (step S6) and at the same time, the ultraviolet irradiation is continued. (Step S7). After the ultraviolet irradiation is started, the ultraviolet irradiation is continued until a predetermined time elapses (step S8), and then the ultraviolet irradiation is finished and the control is finished. Here, for example, UV irradiation is continued for 3 seconds after the start of UV irradiation. However, any time may be set as long as the UV curable resin varnish can be cured. .
When it is determined that the irradiation mode is the second mode, the process proceeds to the control by the second emergency stop control means 34, and the ultraviolet irradiation unit 20 and the film pressing unit F are raised (step S10), and at the same time, the ultraviolet irradiation is performed. Is immediately terminated to end the control.
Note that the control ends after the ultraviolet irradiation unit 20 and the film pressing unit F are moved up to a position away from the impression cylinder 19. Further, as the ultraviolet irradiation unit 20 rises, the ultraviolet irradiation unit 20 moves away from the impression cylinder 19, but since the speed of raising the ultraviolet irradiation unit 20 and the film pressing unit F is slow, the first mode By irradiating the ultraviolet irradiation part 20 for a predetermined time, the ultraviolet curable resin varnish can be reliably cured.

It is a schematic side view of a sheet-fed printing press. It is a side view of a surface treatment apparatus. It is an enlarged side view which shows the lower part of a surface treatment apparatus. It is a block diagram which shows the operation | movement of emergency stop control.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Paper feed part, 2 ... Sheet paper (printing paper), 3 ... Printing part, 4 ... Varnish application part, 4A ... Varnish cylinder, 4B ... Impression cylinder, 5 ... Transfer film, 5A ... Part, 6 ... Surface Processing device, 6A ... casing, 7 ... paper discharge section, 7A, 7B ... sprocket, 7C ... chain, 8-12 ... printing unit, 8A-12A ... printing cylinder, 8B-12B ... transfer cylinder, 14 ... transfer cylinder , 18 ... transfer cylinder, 19 ... pressure cylinder, 20 ... ultraviolet irradiation unit, 21, 22 ... case, 21A, 22A ... ultraviolet lamp, 23 ... supply roll, 24, 25 ... pressing roller, 26 ... winding roll, 27 ... Support member, 28 ... guide member, 28A ... fixed member, 28B ... movable member, 29 ... air cylinder, 29A ... telescopic rod, 29a ... tooth portion, 30 ... gear, 31 ... rack, 31a ... tooth portion, 32 ... UV irradiation Control means 33 ... Emergency stop control hand , 34 ... second emergency stop control unit, R1 to R10, R13 to R16 ... roller, S ... perpendicular, X ... center of rotation

Claims (7)

A varnish application unit for applying an ultraviolet curable resin varnish to the conveyed printing paper, a cylinder for conveying the printing paper coated with the ultraviolet curable resin varnish in the varnish application unit, and a printing paper on the cylinder A surface treatment apparatus for printing paper, comprising: a film pressing unit that presses a transfer film; and an ultraviolet irradiation unit that cures an ultraviolet curable resin varnish of the printing paper on which the transfer film is pressed by the film pressing unit. And
The film pressing part is configured to be movable so as to be separated from or approaching the cylinder, the ultraviolet irradiation unit is configured to be movable so as to be separated from or approaching the cylinder, and the film pressing part is The ultraviolet irradiating part is located close to the cylinder at a position close to the cylinder, and the ultraviolet irradiation part is positioned away from the cylinder at a position where the film pressing part is separated from the cylinder. A surface treatment apparatus for printing paper.   One driving means for separating or approaching the film pressing part or the ultraviolet irradiation part with respect to the barrel is provided, and both are used to move the film pressing part and the ultraviolet irradiation part integrally by the driving means. The printing paper surface treatment apparatus according to claim 1, further comprising an interlocking mechanism for interlocking.   The interlocking mechanism supports the film pressing unit and the ultraviolet irradiation unit, and is configured to be movable so as to be separated from or approach the body, and a guide member for guiding the support member The printing paper surface treatment apparatus according to claim 2, wherein the driving unit includes an actuator for moving the support member.   A supply roll around which the transfer film is wound and fed out, one or more pressing rollers for pressing the transfer film sent from the supply roll against the printing paper on the cylinder, and the transfer roller using the pressing roller A winding roll that winds up the transfer film that is peeled from the printing paper after pressing the film, and the film pressing portion is located on the cylinder by the pressing roller of the pressing roller and the transfer film. The surface treatment apparatus for printing paper according to claim 3, comprising a portion pressed against the printing paper.   The ultraviolet irradiation section is composed of an even number of ultraviolet lamps, and the even number of ultraviolet lamps are distributed in the same number on both sides in the printing paper conveyance direction with respect to the vertical line passing through the rotation center of the cylinder, and the distributed ultraviolet lamps are arranged on the vertical line. The printing paper surface treatment apparatus according to claim 2, wherein the printing paper surface treatment apparatus is disposed so as to be in a substantially symmetrical position.   2. The surface treatment of a printing paper according to claim 1, wherein the ultraviolet irradiation unit includes ultraviolet irradiation control means for irradiating ultraviolet rays at both a position close to and a distance from the cylinder. apparatus.   When the surface treatment apparatus for printing paper according to any one of claims 1 to 6 is stopped, the film pressing unit and the ultraviolet irradiation unit start moving to the separated position, and the ultraviolet irradiation unit A surface treatment apparatus for printing paper, comprising an emergency stop control means for continuing ultraviolet irradiation for a predetermined time.

Images