JP6503212B2 - Printer - Google Patents

Description

  The present invention relates to a printing machine in which a functional layer such as wiring of a high definition pattern is formed by printing on a substrate such as glass or film.

  In recent years, a technology has been developed in which a flexible electronic device is manufactured by forming a functional layer such as wiring of a high definition pattern on a flexible substrate such as glass or film by printing. As such a flexible electronic device, for example, there is a thin film transistor. As a conventional printing machine which can perform such printing, there are some which are indicated, for example in patent documents 1.

The printing machine disclosed in Patent Document 1 uses a flexo plate to print a functional solution to be a functional layer on a substrate. In this printing machine, it has a function which adjusts the position of a substrate at the stage which conveys a substrate. For this reason, in this printing machine, even when the printing plate is attached to the plate cylinder in a shifted or bent state, or when the drive shaft of the plate cylinder is assembled in an inclined manner, the substrate on the stage Since the position of can be adjusted, transfer can be performed as designed.
By the way, as a printing machine which can print a functional layer on a flexible base material, there is a thing which fills an ink with an ink jet head in a crevice of an intaglio attached to a plate cylinder and transfers this ink to a base material .

JP, 2014-19059, A

  In a printing machine in which an ink-jet head is used to fill the concave portions of the intaglio with ink, if the plate is attached to the plate cylinder in a shifted or bent state, the position of the substrate is adjusted by the technique described in Patent Document 1. , You can not print correctly. The reason for this is that the movement direction and movement distance of the ink jet head are restricted, and it is difficult to fill the concave portion of the intaglio plate which is shifted or bent with ink. It is not desirable to fill the ink jet head in response to the deviation or bending of the plate not only complicating the machine configuration but also requiring complicated operation control.

  The present invention was made in order to solve such a problem, and it is an object of the present invention to provide a printing machine capable of correctly mounting a plate on a plate cylinder.

In order to achieve this object, a printing machine according to the present invention comprises a plate cylinder having a holding function for detachably holding a plate consisting of an intaglio plate, and a plate mounting surface on which the plate attached to the plate cylinder is placed A plate holding device disposed in the vicinity of the outer peripheral surface of the plate cylinder, a plate supply device for movably supporting the plate holding device, and a plate holding device disposed at a position facing the plate mounting surface The plate supply apparatus comprising: a camera for imaging a plate placed on a plate mounting surface; a camera for imaging the plate mounted on the plate cylinder; and an inkjet head facing the outer peripheral surface of the plate cylinder And moving the plate holding device in a direction along the plate mounting surface based on the image of the plate captured by the camera that captures the plate placed on the plate mounting surface, and the plate cylinder Function of adjusting the position of the plate with respect to the Said printing plate holding device in a coordinated state is moved toward the plate cylinder, the plate and has a function of supplying the holdable supply position by the plate cylinder, the plate of the plate cylinder by the ink jet head A functional solution is apply | coated to a recessed part, and the functional layer is provided in the base material of an electronic device.

  In the printing machine according to the present invention, the plate supply device may further have a function of rotating the plate holding device about an axis extending in a direction orthogonal to the plate mounting surface.

In the printing machine according to the present invention, the camera for imaging a plate placed on the plate mounting surface may be configured to be capable of imaging at least two places separated in the axial direction of the plate cylinder.

  The present invention relates to the printing press, wherein the plate holding device is movable in a direction approaching the plate cylinder, and the plate is moved to the plate cylinder by moving the plate holding device toward the plate cylinder. It may be supplied.

  In the printing machine according to the present invention, the plate holding device may have a function of adsorbing and holding the plate.

  In the printing press according to the present invention, the plate cylinder may have a function of adsorbing and holding the leading end of the plate at a portion holding the plate.

According to the present invention, the position of the plate is adjusted just before the plate is attached to the plate cylinder, and the plate is supplied to the plate cylinder in the adjusted state.
Therefore, it is possible to provide a printing machine capable of correctly mounting the plate on the plate cylinder.

It is a side view showing composition of a printer concerning the present invention. It is a side view which expands and shows a part of printing cylinder. It is a side view which expands and shows a part of plate | plate clamp mechanism. FIG. 2 is a perspective view showing a plate holding device, a plate supply device and a camera. It is a side view which expands and shows a part of plate | plate clamp mechanism.

Hereinafter, one embodiment of a printing press according to the present invention will be described in detail with reference to FIGS.
The printing press 1 shown in FIG. 1 is a so-called digital inking printing press, and includes an inkjet head 3 described later above the plate cylinder 2.
The plate cylinder 2 is rotatably supported by a support device (not shown) on the base 4 with its axis directed in the horizontal direction. Hereinafter, for convenience, a direction parallel to the axis of the plate cylinder 2 is referred to as an X direction, and a horizontal direction orthogonal to the X direction is referred to as a Y direction. Also, the direction of rotation about an axis extending in the vertical direction is referred to as the θ direction.

The support device for supporting the printing drum 2 has a function of moving the printing drum 2 up and down between the printing plate mounting position shown in FIG. 1 and the printing position lower than the printing plate mounting position. Further, the plate cylinder 2 is rotated by being driven by a driving device (not shown).
The plate cylinder 2 is provided with a plate clamping mechanism 5 as shown in FIG. The plate clamping mechanism 5 is for realizing the "holding function for detachably holding the plate" in the present invention. The plate clamping mechanism 5 is accommodated in a recessed groove 6 opened to the outer peripheral surface of the plate cylinder 2. The plate clamp mechanism 5 includes a plurality of front claws 7 and rear claws 8 and a driving device 9 capable of driving the front and rear claws 7 and 8 individually.

The front claw 7 and the rear claw 8 can swing between a clamping position shown by a solid line in FIG. 3 and a non-clamping position shown by a two-dot chain line in FIG. The driving device 9 swings the front claw 7 and the rear claw 8 between the clamp position and the non-clamp position, respectively. The front claw 7 and the rear claw 8 located at the clamping position are biased toward the claw base 10 of the plate cylinder 2. In this embodiment, the claw base 10 corresponds to the "plate holding portion" in the invention according to claim 6. In the printing by the plate cylinder 2, the front claw 7 and the rear claw 8 at the clamping position and the plate 11 (see FIGS. 1 and 2) described later are held between the claw base 10 and sandwiched between them. It takes place in
The nail base 10 according to this embodiment is provided with an adsorption device 12 (see FIG. 3) for adsorbing and holding the plate 11. The adsorption device 12 is configured to suck air from an air suction port 13 opened on the upper surface of the claw base 10.

As shown in FIG. 1, a plurality of functional devices are provided on the base 4 in addition to the plate cylinder 2. These functional devices include a platen drive device 14 in which a part is exposed between the plate cylinder 2 and the base 4, first to third cameras 15 to 17, an inkjet device 18 and the like.
The platen drive device 14 is provided with a printing platen 21. The printing surface plate 21 holds a base material 22 to be an electronic device (not shown). The substrate 22 is, for example, a glass plate or a film substrate.

  The platen drive device 14 has a function of moving the printing platen 21 in the Y direction between the substrate delivery position shown by the solid line in FIG. 1 and the printing position below the plate cylinder 2 shown by the two-dot chain line. It has a function of stopping the printing plate 21 below the first camera 15 to be described later and aligning the substrate 22. During printing, the platen drive unit 14 moves the printing platen 21 in the Y direction below the plate cylinder 2 in synchronization with the rotation of the plate cylinder 2.

The alignment of the base material 22 is performed by moving the printing platen 21 in the X direction, the Y direction, and the θ direction, which will be described in detail later.
The printing surface plate 21 according to this embodiment includes an adsorption mechanism (not shown) that adsorbs the base material 22. The suction mechanism is configured to suction air from a large number of air suction ports opened on the upper surface of the printing surface plate 21.

A first camera 15 is disposed above the movement path when the printing surface plate 21 moves between the substrate delivery position and the printing position.
The first camera 15 is fixed to the base 4 by a support member (not shown), and has a plurality of positioning marks (not shown) of the base material 22 placed on the printing surface plate 21. Take an image from above. By imaging the positioning mark with the first camera 15 and performing image processing, it is possible to detect the displacement amount of the base material 22 with respect to the reference position of the printing surface plate 21. The platen drive device 14 moves the printing platen 21 in the X direction, the Y direction, and the θ direction, and the actual reference position of the base material 22 based on the positioning mark is determined in advance by the platen drive device 14 Match the true reference position, and set the shift amount to zero. Thus, the position of the substrate 22 with respect to the plate cylinder 2 is adjusted by matching the actual reference position with the true reference position.

A plate holding device 23 is disposed above the first camera 15 in FIG. The plate holding device 23 is for temporarily holding the plate 11 attached to the plate cylinder 2 and can be moved by the plate supply device 24 (see FIG. 4) in the state of being positioned near the outer peripheral surface of the plate cylinder 2 It is supported by The plate holding device 23 holds the plate 11 side by side with the upper end portion of the plate cylinder 2 in a horizontal state, as shown in FIG.
The plate holding device 23 has a flat plate placing surface 25 on which the plate 11 before being attached to the plate cylinder 2 is placed, as shown in FIG.

  The plate 11 used in the printing press 1 according to this embodiment is a silicon rubber intaglio plate used for digital inking. A large number of air suction ports 27 of the suction device 26 are opened in the plate mounting surface 25. The adsorption device 26 is configured to suck air from the air suction port 27. The printing plate 11 mounted on the printing plate mounting surface 25 is adsorbed and held by the printing plate holding device 23 by the suction device 26. That is, the plate holding device 23 has a function of adsorbing and holding the plate 11. As shown in FIG. 4, the printing plate 11 is held by the printing plate holding device 23 in a state in which one end 11 a close to the printing plate cylinder 2 protrudes from the printing plate holding device 23 to the printing plate cylinder 2 side.

A second camera 16 is disposed above the plate holding device 23 as shown in FIG. The second camera 16 is fixed to the base 4 by a support member (not shown) and captures an image of the plate 11 held by the plate holding device 23 from above. In this embodiment, the second camera 16 constitutes a "camera" in the present invention. The second camera 16 captures an image in a state in which the positioning marks 28 (see FIG. 4) of the plate 11 are within the imaging range. The positioning marks 28 are provided at two places in the plate 11 which are separated in the X direction. As the second camera 16 according to this embodiment, one capable of imaging two positioning marks 28 at a time is used. Alternatively, at least two second cameras 16 may be used, and each camera may be configured to image the positioning mark 28 for each camera.
By imaging the positioning mark 28 of the plate 11 with the second camera 16 and performing image processing, the position of the plate 11 relative to the plate holding device 23 can be detected.

The plate supply device 24 supporting the plate holding device 23 has first and second functions described later.
The first function is to move the plate holding device 23 in the direction along the plate placement surface 25 based on the image of the plate 11 captured by the second camera 16 and adjust the position of the plate 11 relative to the plate cylinder 2 It is a function. The directions along the printing plate placement surface 25 referred to here are the X direction, the Y direction, and the θ direction. When adjusting the position of the plate 11, the plate supply device 24 moves the plate holding device 23 in the X direction, the Y direction, and the θ direction, and the actual reference position of the plate 11 based on the positioning mark 28 It matches the predetermined true reference position of the feeder 24. When the actual reference position matches the true reference position, the printing plate 11 is positioned at a predetermined position with respect to the plate cylinder 2. The position in the X direction and Y direction of the plate 11 in this positioning state and the angle in the θ direction are the positions where the plate 11 is correctly mounted on the plate cylinder 2 by moving the plate 11 in the positioning state toward the plate cylinder 2 And angle.

  The second function is to move the plate holding device 23 toward the plate cylinder 2 in the Y direction with the position of the plate 11 relative to the plate cylinder 2 adjusted, to a supply position where the plate 11 can be held by the plate cylinder 2 It is a function to supply. The Y direction in which the plate holding device 23 moves is a direction close to the uppermost portion of the outer peripheral surface of the plate cylinder 2 and a direction along a tangent line contacting the uppermost end of the outer peripheral surface of the plate cylinder 2. Further, the above-described supply position is a position where one end of the plate 11 is inserted between the front claw member 7 of the plate cylinder 2 and the claw base 10. When the plate holding device 23 moves toward the plate cylinder 2, the front claw member is swung in advance to the non-clamping position as shown in FIG. 5, and is swung to the clamping position after the plate holding device 23 is stopped. . When the plate holding device 23 stops at the supply position, the plate 11 is positioned between the front claw member 7 and the claw base 10 in the X direction, the Y direction, and the θ direction.

  The ink jet head 3 of the ink jet device 18 is disposed in the vicinity of the upper side of the plate cylinder 2. The ink jet device 18 supplies the conductive solution (not shown) as the “functional solution” in the present invention to the concave portion of the plate 11 from the ink jet head 3. The conductive solution is transferred from the concave portion of the plate 11 to the base 22 and solidified to become a functional layer on the base 22.

The ink jet head 3 is provided above the plate cylinder 2 in a state where the distance between the plate cylinder 2 and the position in the X direction can be changed. Although not shown, a plurality of the inkjet heads 3 are provided in a line at predetermined intervals in the X direction.
In the vicinity of the ink jet head 3, a third camera 17 for imaging the plate 11 of the plate cylinder 2 is disposed. The third camera 17 is fixed to the base 4 by a support member (not shown), and images the plate 11 mounted on the plate cylinder 2 from above. The image taken by this third camera 17 can be used to confirm the position of the plate 11.

  In the printing machine 1 of the digital inking method configured as described above, the plate 11 is placed on and held by the plate holding device 23, and the X direction and Y of the plate 11 are set by the above-described first function of the plate supply device 24. The position in the direction and the angle in the θ direction are adjusted to a position at which the plate cylinder 2 can be correctly mounted, in the angle. Then, the plate holding device 23 is moved toward the plate cylinder 2 by the above-described second function of the plate supply device 24, whereby the plate 11 is inserted into the plate clamping mechanism 5 of the plate cylinder 2.

The plate 11 is wound around the plate cylinder 2 by rotation of the plate cylinder 2 in a state in which one end 11a is sandwiched between the front claw member 7 of the plate clamp mechanism 5 and the claw base 10. Then, the plate 11 is mounted in a state where it can not be detached from the plate cylinder 2 by the other end portion being pinched between the rear side claw member 8 and the plate 10.
After the plate 11 is mounted on the plate cylinder 2 as described above, the conductive solution is supplied from the ink jet head 3 to the recess of the plate 11. At this time, since the plate 11 is mounted on the plate cylinder 2 without shifting or bending, the conductive solution is properly filled in the recess without coming out of the recess of the plate 11.

On the other hand, the base material 22 is held by the printing surface plate 21 in advance, and sent to the lower side of the printing cylinder 2 together with the printing surface plate 21 in a state where the position adjustment with respect to the printing cylinder 2 is performed.
In printing by this printing machine 1, after the conductive solution is supplied to the printing plate 11, the printing plate cylinder 2 is lowered to bring the printing plate 11 into contact with the substrate 22. It is done by moving in the direction. That is, the conductive solution filled in the recess of the plate 11 is transferred to the upper surface of the substrate 22. The conductive solution is solidified by a drying device (not shown) to become a functional layer formed by printing on the substrate 22.

In this printing press, the position of the plate 11 is adjusted at a position immediately before the plate 11 is attached to the plate cylinder 2, and the plate 11 is supplied to the plate cylinder 2 in the adjusted state.
Therefore, according to this embodiment, it is possible to provide a printing machine capable of attaching the plate 11 to the plate cylinder 2 in a correct state.

The plate supply device 24 according to this embodiment has a function of rotating the plate holding device 23 about an axis extending in a direction (vertical direction) orthogonal to the plate mounting surface 25.
For this reason, since it is possible to correct the inclination of the plate 11 with respect to the plate cylinder 2, it is possible to provide a printing machine which is attached to the plate cylinder 2 without shifting or bending the plate 11.

  The second camera 16 according to this embodiment is configured to be capable of imaging at least two places separated in the axial direction of the plate cylinder 2. For this reason, since the position of the printing plate 11 can be accurately obtained by image processing, the position adjustment can be performed with high accuracy.

The plate holding device 23 according to this embodiment is movable in a direction approaching the plate cylinder 2 along a tangent line contacting the top end of the plate cylinder 2, and the plate holding device 23 is moved toward the plate cylinder 2. Thus, the plate 11 is supplied to the plate cylinder 2.
For this reason, the direction in which the plate 11 moves with the plate holding device 23 by the plate supply device 24 coincides with the direction in which the plate 11 is inserted into the plate clamping mechanism 5 of the plate cylinder 2. The plate 11 can be inserted into the plate 5, and the plate cylinder 2 can hold the plate 11 correctly.

  The plate holding device 23 according to this embodiment has a function of adsorbing and holding the plate 11. Therefore, since the plate 11 does not move unnecessarily with respect to the plate holding device 23 when adjusting the position of the plate 11, it is possible to provide a printing machine with high accuracy of position adjustment.

  The plate cylinder 2 according to this embodiment has a function of adsorbing and holding the leading end portion of the plate 11 by the portion holding the plate 11 (the claw base 10). For this reason, according to this embodiment, when the plate 11 is held by the plate cylinder 2, the plate 11 is unnecessarily moved since the tip of the plate 11 is adsorbed and then held between the nail members. The plate 11 is held on the plate cylinder 2 with high accuracy while maintaining the position adjustment. Therefore, it is possible to provide a printing machine with a still higher position accuracy of the printing plate 11.

  The printing machine according to this embodiment includes an ink jet head 3 facing the outer peripheral surface of the plate cylinder 2 and is a digital inking system in which a functional solution is applied to the plate 11 of the plate cylinder 2 by the ink jet head 3. . For this reason, the printing machine of the digital inking method according to this embodiment can apply the functional solution to the plate 11 with high accuracy, and thus can manufacture an electronic device with high accuracy.

  In the embodiment described above, an example of applying the present invention to a digital inking type printing machine has been shown. However, the present invention is not limited to such a limitation, and any printing machine can be used as long as it is a printing machine that prints a functional layer on an electronic device using the plate cylinder 2 to which the plate 11 is removably attached. Is also applicable. For example, the present invention is also applicable to direct gravure printers.

  In the embodiment described above, printing is performed from the plate cylinder to the substrate, but the present invention is not limited thereto, and an intermediate transfer material such as a blanket cylinder may be configured between the plate cylinder and the substrate. Good.

  DESCRIPTION OF SYMBOLS 1 ... printing machine, 2 ... plate cylinder, 3 ... inkjet head, 11 ... plate, 15 ... 1st camera, 16 ... 2nd camera, 17 ... 3rd camera, 22 ... base material, 23 ... plate holding apparatus 24 Plate feeding device 25 Plate placing surface.

Claims (6)

A plate cylinder having a holding function for detachably holding a plate made of an intaglio plate ;
A plate holding device having a plate mounting surface on which a plate to be attached to the plate cylinder is placed, the plate holding device being disposed in the vicinity of the outer peripheral surface of the plate cylinder;
A plate supply device movably supporting the plate holding device;
A camera disposed at a position facing the plate mounting surface and imaging the plate mounted on the plate mounting surface ;
A camera for imaging the plate mounted on the plate cylinder;
An inkjet head facing the outer peripheral surface of the plate cylinder ;
The plate supply device
The plate holding device is moved in a direction along the plate placement surface based on the image of the plate captured by the camera which picks up the plate placed on the plate placement surface, and the plate relative to the plate cylinder Function to adjust the position of the
And moving the plate holding device toward the plate cylinder with the position of the plate relative to the plate cylinder adjusted, and supplying the plate to a supply position that can be held by the plate cylinder.
A printing machine comprising: applying a functional solution to a recess of a plate of the plate cylinder by the ink jet head, and providing a functional layer on a substrate of an electronic device. In the printing machine according to claim 1,
Furthermore, the printing plate supply device has a function of rotating the printing plate holding device about an axis extending in a direction orthogonal to the printing plate mounting surface. In the printing press according to claim 1 or 2,
A printer according to claim 1, wherein said camera for imaging the plate placed on said plate placement surface is capable of imaging at least two places separated in the axial direction of said plate cylinder. The printing press according to any one of claims 1 to 3.
The plate holding device is movable in a direction close to the plate cylinder,
A printing press characterized in that the plate is supplied to the plate cylinder by moving the plate holding device toward the plate cylinder. The printing press according to any one of claims 1 to 4.
A printing press characterized in that the plate holding device has a function of adsorbing and holding the plate. The printing press according to any one of claims 1 to 5.
A printing press characterized in that the plate cylinder has a function of adsorbing and holding the leading end of the plate at a portion for holding the plate.

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