JP2011521807A - Operation of non-heated film unit with printing device - Google Patents

Abstract

  In the unit for non-heated film transfer provided in the printing press, the transfer process is improved. At this time, a control device is attached to control the film transfer, and when using the control device to perform a print job without film transfer, or when performing a preparation job to be performed in the printing machine, The printing pressure adjustment of the coating apparatus 2 determined to perform film transfer can be released.

Description

  The present invention relates to an apparatus in a machine for transferring an image line providing layer from a carrier film to a printed sheet according to claim 1.

It is known to produce a metal layer on a printed sheet using a film transfer method. As an example, Patent Document 1 describes a printing material and a printing apparatus using the material. The document discloses a sheet processing machine having a paper feeding device and a paper delivery device, and a plurality of printing devices and one coating device provided between these two mechanisms. In at least one of these printing apparatuses, the adhesive pattern is applied using a lithographic printing method. This adhesive pattern is applied by a cold press method and represents a specific pattern providing an image area. A film guide is provided in a coating apparatus having an impression cylinder and a press roller, which is provided subsequent to the printing apparatus. The film guide is formed based on the concept of guiding a film strip or transfer film from a film stock roll through a transfer gap provided between an impression cylinder and a press roller of a coating apparatus. After exiting the coating apparatus, the film strip is rewound on the discharge side. The transfer film has a carrier layer, and an image line providing layer such as a metal layer made of aluminum may be provided on the carrier layer. A separation layer is provided between the metal layer and the carrier film. The separation layer is provided so that the metal layer can be peeled from the carrier layer.
An adhesive pattern is applied to each printed sheet when the printed sheet is conveyed and passed through the printing apparatus. Thereafter, the printed sheet is guided through the coating apparatus, and at that time, the printed sheet placed on the impression cylinder is combined with the film material by using a press roller. At this time, the metal layer provided downward is intimately coupled with the region of the printed sheet on which the adhesive is applied. When the printed sheet is further conveyed, the metal layer adheres only to the area where the adhesive is applied. That is, in the region of the adhesive pattern, the metal layer is peeled from the carrier film. The transfer film thus consumed is wound again. The printed sheet is discharged in a coated state. It is known to use such a coating device in a printing device of a printing press, for example. The disadvantage of such conventional devices is that in many cases these coating devices cannot be used fully and flexibly.
Control the parameters that determine the process according to the load caused by the speed of the web or machine, the roll quality of the film roll, the change in web tension, the variability of the applied pattern, and so-called path disturbances, etc. It is difficult. As a result, quality may be impaired during film transfer in the pasting process, which may cause defects in film pasting.

European Patent No. 5695520

  Accordingly, an object of the present invention is to provide an apparatus capable of economically and reliably transferring an image line portion providing layer on a printed sheet. The device must be easy to operate.

  The above problem is solved in an apparatus having the features of claim 1.

  According to the present invention, adjustment of a printing apparatus used as a film transfer apparatus is performed, whereby in the printing apparatus, film conveyance cannot be performed while the web-like film is drawn and the machine is operated. .

  The above use can be provided when auxiliary operations such as ink loading, cylinder cleaning or printing sheet test runs are performed on the printing press. Then, the web-like film is constantly in the machine and does not need to be newly installed. This saves a lot of preparation time.

Therefore, in a printing machine where printing with printing ink is performed in a further printing device in the preceding or subsequent manner, the adjustment of the members forming the pressure gap of the coating device for film transfer is a production without film transfer. Limited to. Thereby, the size of the gap can be adjusted independently of the subsequent printing apparatus in the coating apparatus that realizes at least the film transfer function. At least, in a coating apparatus for performing non-heated film transfer, it must be possible to adjust so that the web-like film is opened when non-heated film transfer is not possible.
In particular, while the web-like film is stopped, the press roller is stopped or kept moving while being released from the impression cylinder.

  When it is necessary to improve the use of the film by dividing the transfer film into one or more narrow web-like films, the apparatus is preferably used. By combining with the above methods, different types of films can be used in parallel.

  Hereinafter, the present invention will be described in more detail with reference to FIG. The figure shows the following.

It is the schematic of the printing machine which has a film transfer apparatus.

FIG. 1 shows a sheet processing machine, which comprises at least two printing devices or sticking devices. The two printing devices or sticking devices are used for the following purposes.
In the first printing device or the pasting device, an adhesive pattern for providing an image line portion is provided on the printed sheet (application device 1).

  Subsequently, in the subsequent printing apparatus or pasting apparatus, the transfer film 5 is guided through the transfer gap 6 together with the printed sheet, and the transfer film 5 is pressed against the printed sheet in the transfer gap 6 (coating apparatus 2).

  The coating apparatus 1 may be a well-known offset printing apparatus having an ink apparatus 11, a plate cylinder 12, a transfer cylinder 13, and an impression cylinder 4 for guiding a sheet. The coating device may also be a so-called modular varnishing device, in which the transfer cylinder 13 is formed as a plate cylinder. Ink or adhesive is supplied to the plate cylinder by an apparatus formed as a chamber doctor mechanism, for example, instead of the ink apparatus 11.

The transfer gap 6 in the coating apparatus 2 is formed by the press roller 3 and the impression cylinder 4. In this case, the press roller 3 can correspond to the transfer cylinder of the offset printing apparatus, and the impression cylinder 4 can correspond to the impression cylinder of the offset printing apparatus. Further, the press roller 3 may correspond to the plate cylinder of the modular varnishing device of the sheet printing machine, and the impression cylinder 4 may correspond to the impression cylinder of the modular varnishing device of the sheet printing machine.
In this respect, the coating device 2 may also be formed as a base unit of a printing device. As a result, only the impression cylinder 4 and the press roller 3 are provided, whereby the conveyance of the sheet and the transfer process in the transfer gap 6 are carried out in conjunction with the corresponding film feed-out part and film take-up part. .

The transfer film 5 is composed of a plurality of layers. The transfer film has a carrier layer, and an image area providing layer is provided on the carrier layer via a separation layer. The separation layer is used to more easily remove the image portion providing layer from the carrier layer. The image area providing layer is, for example, a metal coating layer, a glossy layer, a textured layer, an inked layer, or a layer including one or more image area patterns.
The film stock roll 8 is disposed on the sheet supply side of the coating apparatus 2. The film stock roll 8 has a rotation drive unit 7. The rotation driving unit 7 is necessary for supplying the coating film 2 to the coating apparatus 2 while continuously controlling the transfer film, and can be controlled for such a reason. A direction changing roller or a tension roller is also provided in the film supply area. Thereby, the web-like film of the transfer film is always held with the same tension with respect to the press roller 3. A film collecting roll 9 is shown on the discharge side of the printing apparatus. The used film material is wound around the film collecting roll 9 again. The film collection roll can also be provided with a controllable rotation drive 7 for optimized production. The transfer film 5 is generally moved on the discharge side by the rotational drive unit 7 in the same manner, and is strongly stretched using a brake on the inflow side. The process of transferring the image area providing layer such as the metal coating layer to the printing paper is performed in the transfer gap 6 between the press roller 3 and the impression cylinder.

  As schematically shown in FIG. 1, the press roller 3 ′ provided in the coating apparatus 1 is also placed behind the transfer gap between the blanket cylinder 13 and the impression cylinder 4 and corresponds to the impression cylinder 4. May be provided. The transfer roller 5 ′ can be placed on a sheet provided on the impression cylinder 4 by the press roller 3 ′, and immediately after the application of the adhesive providing the image line portion on the sheet, the image line is drawn. A part providing layer or a metal coating layer can be provided.

  The press roller 3 is provided with a press tension member 10 as a plastic coating or the like. The press tensioning material is comparable to a rubber blanket or a printing blanket. The press tension member 10 is anchored to the tightening device in the body groove.

  In order to ensure the efficiency of the coating method, the film feed of the transfer film 5 from the film stock roll 8 to the transfer gap 6 and the film collection roll 9 can be controlled, thereby transferring the image area providing layer. If not, the transfer film 5 is stopped as much as possible. In this regard, the control of the transfer film 5 can be performed as follows. That is, the film feeding is stopped when passing through the body groove in which the holding of the impression cylinder 4 for guiding the sheet is accommodated.

  By dividing the transfer film 5 into one or a plurality of divided web-like films having a smaller width, the use of the film can be improved. Inside the coating device 2 used for film transfer, a web guide for the transfer film 5 is shown. The web guide has a film guide roller 14, and the transfer film 5 is introduced into the transfer gap 6 and led out from the transfer gap by the film guide roller. At this time, it is necessary to provide an opening in the protection device 15 provided in contact with the coating device 2 in accordance with the film guide. The opening is formed so that the web-like film 5 can be easily introduced and led out, and at the same time, the protective function is fully maintained.

  In order to monitor the web-like film, a web tension measuring unit 19 for monitoring the web tension may be provided in the area of the web guide. In addition, the area may be similarly provided with a device 20 for monitoring the web in preparation for web tearing.

FIG. 1 shows two embodiments of the web guide.
a. The transfer film 5 is guided toward the transfer gap 6 from the side of the coating apparatus 2 facing the coating apparatus 1, and is guided through the transfer gap 6 almost tangentially to the press roller 3, on the opposite side. Is derived.
b. The transfer film 5 ′ (illustrated by a dotted line) is conveyed in the coating device 1 toward the transfer gap 6 ′ between the press roller 3 ′ and the impression cylinder 4 on the side away from the sheet supply of the printing device. The transfer gap 6 ′ is placed behind the printing gap between the transfer cylinder 13 and the impression cylinder 4 used for ink printing or adhesive printing.

  In FIG. 1, as a main aspect, the substantially tangential film guide between the press roller 3 and the impression cylinder 4 with respect to the press roller 3 or the winding around the press roller 3 is made smaller than 90 °. In this way, the web-like film 5 is placed on the press roller 3 as prescribed, and the film is clocked or stopped in the transfer gap 6 while passing through the groove. The prerequisites necessary for using the film 5 must be achieved.

The conveyance of the transfer film 5 can be monitored by inspection of the web tension of the web-like film 5 at the film guide rollers or between the film guide rollers. For this purpose, the film web guide is provided with one or more web tension measuring devices 19.
Furthermore, in order to stabilize the web-like film 5, a stabilizing device 30 may be provided between the first direction changing roller and the first drawing roller to the transfer device. This reduces the flapping of the web-like film 5. The stabilizing device 30 has, for example, two rolls that are rotatably supported, and the rolls are provided on the guide roller in order to variably adjust the winding angle of the web-like film 5. The guide action and the buffer action for the web-like film 5 can be adjusted according to the operating state. The adjustment of the stabilization device 30 can be made in connection with a device 19 for web tension control and possibly a sensor device 20 for web tear monitoring.

The electrical signal of the web tension measuring device is evaluated. Various operating conditions are possible for this evaluation.
1 When the web tension exceeds a predetermined minimum value, it is evaluated as a signal indicating the presence of the web-like film 5 and is supplied to the control unit of the machine.
2. When the maximum value of the predetermined web tension is exceeded, the web tension is reduced via the dancer roller 18 or the roll drive unit 7 of the film stock roll 8 or the film collecting roll 9. As a result, unacceptable web stretching and web tearing can be avoided.
3 If the minimum value of the predetermined web tension is below, it is checked whether the web tension control is still active. If the web tension cannot be increased via the dancer roller 18 or the braking device, a web tear is recognized.

  With regard to the web tension as the target value, the information obtained additionally, particularly in connection with the evaluation as described above, can be used for the control of the printing or transfer process. For this purpose, the system can be connected to the control station of the printing press, and the target values for the maximum web tension and the minimum web tension can be input via the control station. Such a target value may depend on the type of transfer film 5 used, the printing or transfer conditions in the module type coating apparatus 2, that is, the conditions relating to the characteristics of the printing material, adhesive, or press tensioning material. It is. Necessary data is read directly from the data medium in the film stock roll via the interface, and is changed using the parameter values obtained from the transfer process adjustment unit provided in the modular coating apparatus 2.

  The method relating to film transfer is performed as follows in the printing apparatus or the pasting apparatus as shown in FIG.

At least in the printing apparatus 50 subsequent to the coating apparatus 2, color printing is performed on a printed sheet on which a coating corresponding to an image line portion has been applied by a metal coating layer. At this time, the printed sheet is transferred from the impression cylinder 4 of the coating apparatus 2 to the impression cylinder 40 of the printing apparatus 50 via the sheet conveyance drum or the sheet conveyance unit.
The printing apparatus 50 includes an impression cylinder 40, a rubber cylinder or transfer cylinder 41 corresponding to the impression cylinder, and a plate cylinder 43 corresponding to the transfer cylinder, as normally found in an offset printing apparatus. As schematically shown in the figure, the plate cylinder 43 is provided with an inking device and a dampening device.
A further printing gap 60 is formed between the impression cylinder 40 and the transfer cylinder 41. In the printing gap 60, the printing ink is applied to the printing sheet from the printing plate 44 stretched on the plate cylinder 43 through the tension member 42 provided on the transfer cylinder 41.

The size of the printing gap 60 between the surfaces of the transfer cylinder 41 and the impression cylinder 40 can be adjusted by an adjusting device 45 provided in the transfer cylinder 41. In this case, in the area of offset printing, the printing pressure adjustment is usually referred to because the adjustment relates to the thickness of the printing material to be printed in the printing gap 60. For this adjustment, it is necessary to apply pressure, whereby the printing ink is transferred from the transfer cylinder 41 to the printing material carried on the impression cylinder 40.
Adjustment with respect to the transfer gap 6 is performed by a further adjusting device 46 arranged on the press roller 3.
In the technical field of offset printing machines, the adjusting devices 45 and 46 are usually used for a transfer cylinder or a rubber cylinder of a printing apparatus, or for a plate cylinder of a modular varnishing apparatus.
In FIG. 1, the place where the printing pressure adjustment or pressing force acts is represented by DB 1 and DB 2, and is equal to the transfer gap 6 or the printing gap 60.
For these reasons, the conversion from color printing to film transfer or vice versa is very easy for the machine operator.

  The printing machine is provided with a so-called machine control unit for process control. The machine control unit includes all adjustment possibilities for the printing device 50 and for the printing device or the pasting device of the printing machine or the pasting machine included in the coating device 2 and the coating device 1. Yes. Therefore, the adjustment of the size of the gap between the surfaces of the cylinders 3, 4 or 41, 40 with respect to the transfer gap 6 and the printing gap 60 can also be adjusted from the machine control unit.

In this regard, in connection with the machine control or separately, when adjusting the printing press (preferably a sheet offset printing press) for non-heated film transfer, for making corresponding adjustments in the printing device. A control device may be provided.
That is, the machine controller of the printing press provides special adjustments for the operating mode of non-heated film transfer. In this operating mode, the surface distance in the transfer gap 6 is adjusted, thereby manipulating the print quality of the film transfer with respect to the film transfer result. As a result, color printing performed on the substrate subsequent to film transfer is performed under conditions that are inconvenient for ink transfer, thereby avoiding the risk of print quality degradation.

  Accordingly, the thickness of the press tension member 10, the printing blanket / rubber blanket 42, and the underlying sheet is read by the machine controller manually or automatically. For this purpose, the press tensioning material 10, the printing blanket / rubber blanket 42 and the underlying sheet may each be provided with readable markings representing functional data such as the value of the thickness. In that case, the adjustment of the gap size in the working gap 6, 60 of the printing press is made only by reading the data relating to the printing blanket / rubber blanket 42 or the underlying sheet, which is read from the marking. A graphic code (bar code, scan code, color code, etc.) can be used as the marking representing the function data. With respect to reading data, an electrically or magnetically readable data medium (magnetic strip, RFID chip, electronic circuit, transponder, etc.) can also be used to receive the data. Reading or recognition of data is realized by corresponding auxiliary means. A reader machine for this purpose is self-evident and can be provided outside the printing press in association with the operating device, or it can be incorporated in the printing press itself.

  The recognition of the data is further performed, for example, in a tower-type printing device or sticking device or other unit, on the press roller 3 or transfer cylinder 41 or plate cylinder, on the press tensioning material 10 or printing blanket / rubber blanket 42 and / or underlying sheet. This is done using one or more built-in readers that are correspondingly arranged to support the paper. In that case, individual markings relating to functional data such as thickness dimensions in the press tensioning material 10, printing blanket / rubber blanket 42 or underlying sheet are automatically made from these readers and are read during machine operation. obtain.

  According to the present invention, after carrying out a job with film transfer and before a new further job with film transfer performed using the same transfer film, with the web-like film 5 retracted, Such a printing press (sheet-fed offset printing press) can also be used to carry out the test process. In the preparation or test process, the printing press member is rotated.

For example, the following processes are known as the above preparation process.
-Cleaning of the inking unit and the plate cylinder (printing plate);
-Cleaning the transfer cylinder or impression cylinder
-Varnish discharge process (cleaning) to discharge excess (residual) varnish from one or more modular coating equipment
An ink discharge process (cleaning) for discharging excess (residual) printing ink from one or more transfer cylinders, plate cylinders and / or inking units;
-Replacement of individual or multiple printing plates in the printing device-Printing ink leveling operation process in the inking device-Ink trial printing-Test runs for special printing materials

In either case, the machine unit is driven to rotate in the printing press. At this time, the coating apparatus 2 may continue to rotate, and the web-like film 5 is stopped, so that no film is consumed. The adjustment of the coating apparatus 2 for such an application will be further described below.
In order to carry out the preparation process, a corresponding device is provided in the printing press.

For the cleaning of the inking device, a corresponding inking device cleaning device is provided, and the surface of the inking device roller is automatically finished by the inking device cleaning device, in particular by the supply of cleaning auxiliary means. In connection with the inking device, the printing plate on the corresponding plate cylinder can also be cleaned. These devices can be remotely controlled.
For the cleaning of the impression cylinder and transfer cylinder, a corresponding impression cylinder or blanket cleaning device is provided, by means of the impression cylinder or blanket cleaning device, in particular by the supply of cleaning auxiliary means, the surface of the blanket and impression cylinder Finished automatically. These devices can be remotely controlled.

In order to clean the varnish of the inking device and / or printing plate and plate cylinder module varnishing device, a so-called ink discharge process or varnish discharge process can be carried out. A corresponding control device is provided for this purpose. The surface of the inking device roller with the ink supply in the inking device stopped or the inking roller separated from the printing plate while supplying the printing sheet to the printing press for the ink discharge preparation process And automatically from the surface of the printing plate, the printing ink remaining after the printing process can be wiped out. The process is performed by passing a preselectable number of printing sheets with the transfer cylinder in contact and printing with residual ink from the printing plate and / or inking device. As a result, pre-cleaning of the printing plate takes place, and pre-cleaning of the inking device can be carried out in connection therewith.
For the varnish discharge preparation process, while supplying the printing sheet to the printing machine, the varnishing device stops automatically and from the surface of the varnishing roller and varnish plate after the printing process Residual printing ink or residual varnish can be wiped out. The process involves passing a preselectable number of printing sheets with the varnish plate or transfer cylinder in contact, leaving residual ink or residue from the varnish supply of the varnish plate and / or varnishing device. This is done by coating with varnish. The apparatus for performing these processes is remotely controllable.

  In order to prepare the printing press of the printing press for a new print job, the printing plate of the first print job already exists in the corresponding plate cylinder using the exchange device for the new printing of another print job. Replaced with a plate. The plate exchange process may be performed sequentially, partially in parallel, or completely in time on individual printing devices, multiple printing devices, or all printing devices of the printing press. The device can be remotely controlled.

  An existing inking device controller is used to prepare the inking device for a new print job. For this purpose, a dispensing device for dispensing the ink supply to the inking device for each zone and an adjusting device for assigning the inking device roller to the printing plate or plate cylinder are provided. With these devices, a targeted and controllable amount of printing ink can be automatically supplied to the surface of the inking device roller in a selected distribution. This leaves the inking roller optimally prepared for the printing process. In connection with the inking device, the corresponding printing plates and transfer cylinders on the corresponding plate cylinders can also be pre-inked. These devices can be remotely controlled.

  Corresponding control devices are provided for testing so-called sheet running and for carrying out a test print.

  At this time, the elements involved in the conveyance of the printed sheet passing through the printing press are prepared to perform the optimum sheet conveyance. Preparations for optimal sheet transport include sheet orientation in the sheet supply area to the printing press, sheet guides in the printing device inside the printing press, and paper discharge devices in the printing press. It relates to sheet discharge. Adjustments to the orientation of the sheet can be inspected in relation to the sheet form, cutting quality and surface property quality. Adjustments to the sheet guide and sheet discharge can be attempted in the context of the printing process and the sheet form and weight.

  In addition, a pre-printed printing device and unit can be used to perform a trial run to examine the effect of the printing process in connection with printing ink and possibly varnish coating. This avoids the occurrence of waste paper later in the printing process.

  The above and all further necessary preparatory processes are carried out with the web 3 being drawn into the coating device 2 and the press roller 3 being separated from the impression cylinder 4 in the coating device. The adjusting means will be described in more detail below.

  The above preparation processes can be performed partially in parallel with each other, thereby saving preparation time. The equipment and controls required for this are already known.

  Using such a printing machine (sheet-fed offset printing machine) to carry out a print job only with color printing and without film transfer after carrying out a job with film transfer according to the present invention. You can also. For this purpose, the coating apparatus 2 is stopped only by separating the press roller 3 from the impression cylinder 4. At this time, the web-like film 5 is kept in the film guide and is held in a state where a light pretension is applied. The pretension may be reduced with respect to adjustment during film transfer. This ensures that the film cannot vibrate too strongly. At the same time, according to the chromaticity of printing, the coating device 1 and all the printing devices 50 placed behind the coating device 2 are adjusted for color printing. For this purpose, ink is supplied to the printing apparatuses 1 and 50 which are required, and the printing pressure adjustment is adjusted to a required value according to the printing material. Thereafter, if necessary, corresponding multi-color prints can be produced by the corresponding printing devices 1, 50. The advantage with this method is that the web-like film 5 remains in the coating apparatus. This eliminates a time-consuming preparation process, and particularly when a new job is provided for a print job that needs to be transferred again in the coating apparatus 2.

  The important point regarding the above operation mode is that the web-like film 5 stays in the coating apparatus 2 with the press roller 3 being separated from the impression cylinder 4. On the other hand, in an operation process involving pure printing, the web-like film 5 is not moved, and the press roller 3 does not pull the web strongly, but below the web-like film 5 in contact with the press roller. Web tension is maintained only to the extent that it can pass. For this purpose, the press roller 3 is provided with a press tensioning material 10 with less adhesiveness, and the press tensioning material may have, for example, a fine surface structure, a so-called cloth with glass beads. The friction of the web-like film 5 on the press roller 3 can be reduced by sending air into the gap between the press roller 3 and the web-like film.

  The web-like film 5 serves as a protection against the press roller against printing ink imprinted in the above-mentioned places and possibly in the coating device 1 against the color printing process without film transfer. The reason is as follows. In other words, the printing sheet is only guided through the same cylinder guide means provided in the impression cylinder blower 21 or the impression cylinder 4 of the coating apparatus 2, so that the printing ink still damp is kept. It is possible to arrive at the press roller 3 from the printed sheet. However, the adhering printing ink adheres to the web-like film 5 and can be carried out from the printing gap 6 through the conveyance by the step movement of the web-like film 5. When performing a new job with film transfer, the possibly contaminated film area is far enough from the transfer gap 6 so that it is no longer an obstacle.

  The advantage with respect to the above aspect is that the operation is simplified at the time of replacement performed between print jobs including film transfer, or in a print job performed only by color printing and without film transfer. It is.

  Furthermore, in a print job that contributes only to the application of ink, when the web-like film 5 is further guided while being in contact with the press roller 3, the press roller 3 is protected against the printing sheet that passes through. It is done. This advantage is particularly relevant when the ink is already applied in the first printing device (application device 1) of the printing press. In this case, even if ink adheres to the web-like film 5, the web-like film is further guided with a certain distance, so that the film consumption is very small, but the printed sheet In contrast, a clean guide surface is always provided.

The above functions are realized as follows. That is, in the transfer gap 6, the transfer film 5 is slowly and continuously conveyed continuously. This ensures that the latest film surface is always in use. Ink smear accumulation and return cannot occur.
The function can alternatively be realized as follows. That is, the transfer film 5 is slowly conveyed by the step movement in the transfer gap 6. The length of the transport step and the time interval for performing the transport step can be automatically derived from ink application in the coating apparatus 1 or detection using film smear measurement techniques in the transfer gap 6. It is also possible for the operator to make manual adjustments as necessary.

  Thus, in the transfer gap 6, the latest film surface is always used. Accumulation of fuzz and ink stains, or other types in the coating apparatus 2 that may be emitted from a printed sheet conveyed under adjustment without film transfer and transferred to the printed sheet again. Deposition cannot occur.

DESCRIPTION OF SYMBOLS 1 Application | coating apparatus, 2 coating apparatus, 3,3 'press roller, 4 impression cylinder, 5,5' transfer film / web-like film, 6 transfer gap, 7 roll drive part, 8 film stock roll, 9 film collection roll, 10 Press tensioning material, 11 Inking device, 12 Plate cylinder, 13 Transfer cylinder, 14 Film guide roller, 15 Printing device protection device, 16 Dryer, 17 Inspection device, 18 Dancer roller, 19 Web tension measuring device, 20 Web monitoring device, 30 Stabilizer, 40 impression cylinder, 41 transfer cylinder, 42 printing blanket / rubber blanket, 43 printing cylinder, 44 printing plate, 45, 46 adjustment apparatus, 50 printing apparatus, 60 printing gap, DB1 printing pressure adjustment, DB2 printing pressure Adjustment

Claims (15)

Using the coating device (2), the layer providing the image line portion is transferred from the transfer film (5) to the printing sheet provided with the coating corresponding to the image line portion by the adhesive in the coating device (1). Printing on a printing machine for transfer,
The coating apparatus includes an impression cylinder (4) that forms a common gap (6) and a press roller (3), and the transfer film (5) passes through the transfer gap (6) to a film stock roll ( 8) to guide the press roller (3) while being in contact with it, whereby the coated side of the transfer film is placed on a printed sheet guided on the impression cylinder (4) And pressure is applied to transfer the coating, guided through the transfer gap (6) with the printed sheet,
Wherein the printed sheet is guided through a further printing device (50) for performing color printing and / or at least one printing device or varnishing device for performing varnish application, respectively.
To carry out a printing process with color printing and without film transfer,
a) the printed sheet is guided through the coating device (1) in an idle path without color printing or in a path implemented with color printing;
b) The printed sheet is guided to pass through the coating apparatus with the press roller (3) being separated, and the sheet is around the press roller (3) or the press roller. The web-like film (5) remains guided while passing through (3); and
c) no film transfer in the coating device (2);
d) The printed sheet is guided through one or more post-printing devices (50) for at least a first or further color printing, in which the impression cylinder ( 40) and a transfer gap (60) formed between the transfer cylinder (41) and a step provided for transferring printing ink;
e) The operation mode for the film transfer in the coating device (2) can be set to a selected state or a non-selected state using a control device for controlling the adjusting device (45, 46); ,
f) The operation mode for film transfer is set to a non-selected state, and the adjustment device (46) in the coating device (2) is adjusted to operate the printing press with the web-like film attached. When the transfer gap (6) is opened;
A method characterized in that is performed. One or a plurality of printing devices (1) which are provided in the coating device (1) and which are arranged behind the cylinder (13, 4) and / or placed behind the coating device (2). 50), the printing gap (60) formed between the cylinders (40, 41) is adjusted while supporting the printing material under pressure in order to transfer the printing ink. ,
2. Method according to claim 1, characterized in that the transfer gap (6) is opened when the printing press is operated for print production. The web-like film (5) is stopped in the transfer gap (6), or
In the transfer gap (6), the web-like film (5) is moved continuously through the transfer gap (6) at a speed much reduced with respect to the process speed, or
In the transfer gap (6), the web-like film (5) passes through the transfer gap (6) in a selectable or set step in terms of time and step length in accordance with dirt. Moved to
3. A method according to claim 1 or 2, characterized in that in all cases the transfer gap (6) is opened when the printing press is operated for print production.   When the coating apparatus (2) is used for the film transfer, the adjustment of the distance between the surfaces at the operation position in the transfer gap (6) is equal to or equal to the distance in the printing gap (60). 4. A method according to any one of claims 1 to 3, characterized in that it is adjusted only slightly larger than. A method for printing on a printing press,
The printing machine applies a layer for providing an image line part from a transfer film (5) to a printing sheet (in the coating apparatus (1)) provided with a coating corresponding to the image line part by an adhesive. 2), and the coating apparatus includes an impression cylinder (4) and a press roller (3) that form a common gap (6), with the transfer gap (6) interposed therebetween. The transfer film (5) can be guided while coming into contact with the press roller (3) from the film stock roll (8), so that the coated side of the transfer film is placed on the impression cylinder (4). Placed on the printed sheet of paper guided by the pressure, and pressure is applied to transfer the coating, and is guided through the transfer gap (6) together with the printed sheet of paper,
Wherein the printed sheet is guided through a further printing device (50) for performing color printing and / or at least one printing device or varnishing device for performing varnish application, respectively.
In order to carry out the press preparation process for further print jobs involving color printing and film transfer,
a) starting the operation of the printing press in a rotary process with or without color printing and / or in a rotary process with or without varnishing;
b) The printing press is operated with the press roller (3) spaced apart in the coating device (2), during which the web-like film (5) is surrounded by the press roller (3) Or the step of being guided in contact with the press roller (3);
c) The operation mode for film transfer in the coating apparatus (2) is set to a selected state or a non-selected state in order to perform a preparation process using a control device for controlling the printing press. Steps that can
f) The operation mode of the printing press is selected as a preparation process, and the adjustment device (46) in the coating apparatus (2) is adjusted in a state where the web-like film (5) is mounted, and the preparation process is performed. When operating the printing machine, the transfer gap (6) is opened;
g) as a preparatory process for cleaning the inking device and / or blanket and / or printing plate and / or impression cylinder and / or for replacing the printing plate and / or for pre-filling the inking device A step in which a process and / or a process for proof printing and / or a process for a sheet running test are provided;
Is performed. In the coating device (1) and / or in one or more printing devices (50) placed after the coating device (2), the cylinder is from an inking device and / or a plate cylinder and / or a transfer cylinder, Adjusted to support and / or to transfer the remaining printing ink to the printing material, and / or
In one or more varnishing devices of the printing press, which are pre- and / or post-installed in the coating device (2), the cylinder is left from the metering device and / or the plate cylinder or remains varnish. In order to transfer printing ink to the material to be printed, it is adjusted with support,
Method according to claim 5, characterized in that the transfer gap (6) is opened when the printing press is operated to discharge residual printing ink and / or residual varnish. In the application device (1) and / or in one or more printing devices (50) placed behind the coating device (2), an inking device and / or a dampening device and / or a plate cylinder and / or The device for clearing the printing ink from the transfer cylinder is adjusted and / or
For cleaning varnish or printing ink in a metering device and / or a plate cylinder in one or more varnishing devices of the printing press, which are pre- and / or post-installed in the coating device (2) The device is adjusted,
6. The method according to claim 5, characterized in that the transfer gap (6) is opened when the printing press for printing production is operated for cleaning. In the coating device (1) and / or in one or more printing devices (50) placed behind the coating device (2), printing ink is applied to the inking device and / or the plate cylinder and / or the transfer cylinder. Equipment for preparatory feeding has been adjusted,
The printing press can be used to adjust the inking device and / or the plate cylinder and / or the transfer cylinder in the coating device (1) and / or the one or all printing devices (50) and / or an adjustable ink amount. Driven to fill with ink profile of adjustable printing ink,
6. A method according to claim 5, characterized in that the transfer gap (6) is opened when the printing press is operated for the preliminary ink supply. One or more provided in the coating device (1) and / or in one or more printing devices (50) after the coating device (2) and / or in the printing press In the varnishing apparatus, a printing apparatus (50) and / or a device for preparatively supplying a printed sheet to the varnishing apparatus, or a trial printing is performed in the printing apparatus (50) and / or the varnishing apparatus. The equipment to carry out is adjusted,
In order to carry out the sheet running in the coating device (1) and / or the one or all printing devices (50) and / or the one or all varnishing devices. Or driven to perform a test print,
6. The method according to claim 5, characterized in that the transfer gap (6) is opened when the printing press is operated to carry out a preparatory supply of printing sheets. In the transfer gap (6), the web-like film (5) is stopped or moved continuously through the transfer gap (6) at a speed much reduced with respect to the process speed, Or
Depending on the dirt, it is moved through the transfer gap (6) in steps that are selectable or set in terms of time and step length, and in all cases the printing press is used for the preparation process. 10. Method according to any one of claims 5 to 9, characterized in that, when activated, the transfer gap (6) is open. In a printing machine, a layer for providing an image area is formed by printing a sheet corresponding to the image area by an adhesive in the printing gap (60) of the coating apparatus (1) from the transfer film (5). An apparatus for carrying out the method according to any one of claims 1 to 10 for transferring to paper using a coating apparatus (2),
The coating apparatus includes an impression cylinder (4) and a press roller (3). The impression cylinder and the press roller form a common transfer gap (6), and the transfer film (5) is interposed through the transfer gap. ) Can be guided from the film stock roll (8) in contact with the press roller (3), so that the coated side of the transfer film is guided on the impression cylinder (4). Mounted on a sheet of paper and under pressure applied to transfer the coating and guided through the transfer gap (6) with the printed sheet of paper, the printing press is applied to the applicator (1) In addition to the coating device (2), at least one further printing device,
At least one printing apparatus (50) having a printing gap (60) formed between the impression cylinder (40) and the transfer cylinder (41) is placed behind the coating apparatus (2). The printing apparatus is provided for transferring printing ink, and the press roller (3) is provided with a tension material (10) that is hard elastic and has low adhesiveness,
An adjusting device (45, 46) is provided in connection with the cylinder (3, 4; 41, 40) forming the transfer gap (6) and the printing gap (60), so that in two working gaps Adjusting the distance between the surfaces of the barrel (3, 4; 41, 40);
A control device is provided for selecting a print job or a preparation job in the printing machine, so that in the coating device (2), the press roller (3) opens the transfer gap (6). The printing gap (60) is closed in the application device (1) and / or at least the subsequent printing device (50),
An arrangement in which an adjustment for carrying out a preparatory job is made in the coating device (1) and / or at least the subsequent printing device (50).   12. Device according to claim 11, characterized in that the tensioning material (10) is implemented as a cloth with glass beads.   A blowing device for blowing air from below to the transfer film (5) is provided in the guide of the transfer film in contact with the press roller (3), whereby the transfer film ( Device according to claim 11 or 12, characterized in that the friction of 5) is reduced.   A control device for the adjusting device (45, 46) is provided, and the control device can set the operation mode for the film transfer in the coating device (2) to a selected state and a non-selected state. The control device can adjust the adjustment device in the coating device (2) when the operation mode for the film transfer is in a non-selected state and a print job or a preparation job of the printing machine is in a selected state. By adjusting (46), the press roller (3) is separated from the impression cylinder (4) to open the transfer gap (6) while guiding the web-like transfer film (5), and the coating device In (1) and / or at least in the subsequent printing device (50), adjustments can be made to transfer the printing ink to the printing material. The apparatus according to any one of it being formed from claim 11, wherein 13. A control device for the adjusting device (45, 46) is provided, and the control device can set the operation mode for the film transfer in the coating device (2) to a selected state and a non-selected state. Can
When the operation mode for the film transfer is in the non-selected state and the printing job or the preparation job of the printing machine is in the selected state, the control device is configured to adjust the adjusting device (46) in the coating device (2). ), The press roller (3) is separated from the impression cylinder (4) to open the transfer gap (6) while guiding the web-like transfer film (5),
15. The application device (1) and / or at least the subsequent printing device (50) are formed such that adjustments for carrying out a preparatory job can be carried out. The apparatus as described in any one of.

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