JP2012139896A - Printing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printing machine which makes an ink transferred on a base material with a uniform thickness.SOLUTION: The printing machine 5 includes a frame 55 where a substrate 62 is placed, an inking plate 61 which is arranged on the frame 55 and has a plurality of cells 63 which are filled with inks, and a transfer roll 43 which is arranged above the frame 55 and makes the ink transferred on the substrate 62. Moreover, a rack base 30 is installed at the side of the frame 55, and a rack 35 is installed on the rack base 30. Moreover, a pinion 45 which can be engaged with the rack 35 from the upper side is provided at the side of the transfer roll 43. The rack 35 is constituted by connecting a plurality of rack members 36, 37 and 38 in the horizontal direction.

Description

  The present invention relates to a printer that transfers ink onto a substrate.

  2. Description of the Related Art Conventionally, a printing machine including a frame on which a base material is placed and a transfer roll arranged above the frame is known. Such a printing machine is generally provided with a drive mechanism for causing the transfer roll to run horizontally on the frame. Then, while the transfer roll travels horizontally on the frame, the ink on the transfer roll is transferred onto the substrate.

  Further, an alignment mechanism is further provided to precisely align the position of the transfer roll with respect to the frame. The alignment mechanism includes, for example, a rack provided on the side of the frame and a pinion provided on the transfer roll and engageable with the rack. In this case, the teeth formed on the pinion and the rack are fitted to each other before the ink is transferred onto the substrate. Thereby, the alignment (phase adjustment) of the transfer roll with respect to the frame can be performed (see, for example, Patent Document 1).

JP 2007-106077 A

  Depending on the type of ink and the type of substrate to be processed, it is necessary to push the transfer roll strongly against the substrate. In such a case, the transfer roll may slip. In the conventional printing press, when the transfer roll is pushed strongly against the substrate, the gap (backlash) between the pinion and the rack is small. For this reason, when the transfer roll slips, the pinion collides with the rack.

  It is also conceivable that the gap (backlash) between the pinion and the rack is narrowed while the printing press is used repeatedly. In this case, it is also conceivable that the pinion collides with the rack in the vertical direction while the transfer roll runs in the horizontal direction with respect to the frame.

  When the pinion collides with the rack, the pinion vibrates, which causes the transfer roll to vibrate relative to the substrate. For this reason, in the conventional printing machine, the surface of the film printed on the substrate becomes non-uniform, and as a result, unevenness that appears as fine streaks perpendicular or oblique to the printing progress direction is formed. May end up. In addition, this step unevenness is formed when the thickness of the film printed on the base material becomes thin.

  An object of this invention is to provide the printing machine which can solve such a subject effectively.

  The present invention provides a printing machine for transferring ink onto a substrate, a frame on which the substrate is placed, an ink plate having a plurality of cells filled with ink, and an ink plate disposed above the frame, A transfer roll that contacts the plate and receives ink in the cell and transfers ink onto a substrate, a rack base attached to the frame, a rack attached to the rack base, and a transfer roll And a pinion that can be engaged with the rack from above, and the rack is configured by connecting a plurality of rack members in a horizontal direction, and a buffer member is provided between the adjacent rack members. The plurality of rack members that are interposed and constitute the rack include a first rack member corresponding to a region where the base material is located, Also printing machine, wherein a resilient member is interposed between the rack base and the first rack member.

  In the printing press according to the present invention, the elastic member may include a vertical elastic member that expands and contracts in the vertical direction.

  The printing press according to the present invention includes a vertical impact absorbing member that is provided below the first rack member and suppresses the first rack member from being rapidly pushed back by an elastic restoring force of the vertical elastic member. Furthermore, you may provide.

  In the printing machine according to the present invention, the vertical elastic member may be provided in at least a region of the first rack member where the base material is located.

  In the printing press according to the present invention, the elastic member may include a horizontal elastic member that expands and contracts in the horizontal direction.

  A printing press according to the present invention is provided on a side of the first rack member, and a horizontal shock absorbing member that suppresses the first rack member from being pushed back rapidly by an elastic restoring force of the horizontal elastic member. May be further provided.

  In the printing press according to the present invention, preferably, the elastic coefficient of the horizontal elastic member provided in the first rack member is interposed between the first rack member and a rack member adjacent to the first rack member. It is larger than the elastic coefficient of the buffer member.

  In the printing press according to the present invention, a plurality of the elastic members may be provided.

  In the printing press according to the present invention, the elastic member may be attached to the first rack member via an elastic force adjusting member capable of appropriately adjusting an elastic force of the elastic member.

  The printing press according to the present invention may further include a position detection mechanism that detects the position of the rack, and a position adjustment mechanism that adjusts the vertical or horizontal position of the rack.

  In the printing press according to the present invention, the transfer roll may include a roll body and a blanket provided on the outer peripheral surface of the roll body.

  In the printing press according to the present invention, the transfer roll may have a roll body and a flexographic plate provided on the outer peripheral surface of the roll body.

  In the printing press according to the present invention, the ink plate may be a plate-shaped ink plate disposed on the frame and having a plurality of cells on the upper surface thereof.

  In the printing press according to the present invention, the first rack member may correspond to a region where each cell of the plate-shaped ink plate is located in addition to a region where the base material is located. In this case, the plurality of rack members forming the rack may further include a second rack member corresponding to a region upstream of each cell of the flat plate ink plate.

  In the printing press according to the present invention, an elastic member may be interposed between the second rack member and the rack base.

  In the printing press according to the present invention, the second rack member may be fixed to the rack base.

  In the printing press according to the present invention, the ink plate may be composed of a roll-shaped ink plate having a plurality of cells on the outer peripheral surface thereof.

  In the printing press according to the present invention, the plurality of rack members forming the rack may further include a third rack member corresponding to a region downstream of the base material.

  A printing machine according to the present invention includes a frame on which a substrate is placed, an ink plate having a plurality of cells filled with ink, a transfer roll for transferring ink onto the substrate, and a rack base attached to the frame. And a rack attached to the rack base, and a pinion provided on the transfer roll and engageable with the rack from above. The rack is configured by connecting a plurality of rack members in the horizontal direction. For this reason, compared with the case where a rack is comprised from a single member, it can respond flexibly to the enlargement of a printing press. Further, a buffer member is interposed between adjacent rack members. For this reason, even if the pinion collides with the rack, the shock in the horizontal direction generated at the time of the collision can be mitigated by the buffer member. Further, the plurality of rack members constituting the rack include a first rack member corresponding to a region where the base material is located, and at least between the first rack member and the rack base among the rack members. An elastic member is interposed. For this reason, even if the pinion collides with the rack in the vicinity of the base material, the impact generated during the collision can be reduced by the elastic member. This can prevent unevenness in the thickness of the ink transferred to the substrate.

FIG. 1 is a side view of a printing press according to a first embodiment of the present invention as viewed from the side. FIG. 2 is a plan view of the printing press according to the first embodiment of the present invention as viewed from above. FIG. 3 is a side view showing in detail a plurality of rack members constituting the rack of the printing press. FIG. 4 is a plan view showing in detail a plurality of rack members constituting the rack of the printing press. 5 is an enlarged side view of the vicinity of an eccentric cam roller and a dial gauge of the printing press shown in FIG. 6 is an enlarged side view of the vicinity of a shock absorber of the printing press shown in FIG. 7 is an enlarged side view of the vicinity of the horizontal support portion of the printing press shown in FIG. FIG. 8 is a side view showing a printing method using the printing press according to the first embodiment of the present invention. FIG. 9 is a cross-sectional view showing an organic layer constituting the organic EL. FIG. 10 is a side view of a printing press according to a modification of the first embodiment of the present invention as seen from the side. FIG. 11 is a view showing a modification of the transfer roller. FIG. 12 is a side view of the printing press according to the second embodiment of the present invention as seen from the side. FIG. 13 is a plan view of the printing press according to the second embodiment of the present invention as viewed from above. FIG. 14 is a side view of the printing press according to the third embodiment of the present invention as seen from the side. FIG. 15 is a plan view of a printing press according to the third embodiment of the present invention as viewed from above.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, the entire printing press 5 will be described with reference to FIGS. 1 and 2.

As shown in FIGS. 1 and 2, the printing machine 5 for transferring ink onto the base material 62 is disposed on the frame 55 on which the base material 62 is placed, and is filled with the ink. A plate-shaped ink plate 61 having a plurality of cells 63 and a transfer roll that is disposed above the frame 55 and contacts the plate-shaped ink plate 61 to receive the ink in the cells 63 and transfer the ink onto the substrate 62. 43. Among these, the transfer roll 43 includes a roll body 41 and a blanket 42 provided on the outer peripheral surface of the roll body 41.

  A rack base 30 is provided on the side of the frame 55. For example, the rack base 30 is attached to the frame 55 via the connecting portion 58. A rack 35 is attached on the rack base 30. A pinion 45 that can be engaged with the rack 35 from above is attached to the side of the transfer roll 43. By providing such a rack 35 and pinion 45, the transfer roll 43 can be positioned with respect to the frame 55, whereby ink can be transferred onto the substrate 62 with high accuracy.

In FIGS. 1 and 2, an example is shown in which an ink plate surface plate 56 is placed on the frame 55, and a flat plate ink plate 61 is placed on the ink plate surface plate 56. However, the form for arranging the flat ink plate 61 on the frame 55 is not limited to the form shown in FIGS. 1 and 2, and the flat ink plate 61 is arranged on the frame 55 in various forms. Can do. For example, the flat ink plate 61 may be placed directly on the frame 55.
1 and 2 show an example in which the base plate 57 is placed on the frame 55 and the base plate 62 is placed on the base plate 57. However, the form for disposing the base material 62 on the frame 55 is not limited to the form shown in FIGS. 1 and 2, and the base material 62 can be disposed on the frame 55 in various forms.

  As shown in FIGS. 1 and 2, on the frame 55, an ink supply unit 66 that supplies ink to the upper surface of the flat plate ink plate 61, and the ink supplied from the ink supply unit 66 is supplied to the flat plate plate 61. A doctor 65 for filling the cell 63 is provided.

  A transfer unit 40 for transferring ink onto the base material 62 is configured by the combination of the transfer roll 43, the pinion 45, the doctor 65, and the ink supply unit 66 described above. In the vicinity of the transfer unit 40, a drive mechanism (not shown) that causes the transfer unit 40 to travel on the frame 55 in the travel direction S is disposed.

  In such a printing machine 5, when the transfer roll 43 of the transfer unit 40 comes into contact with the flat plate ink plate 61, ink is printed on the blanket 42 of the transfer roll 43 with a pattern corresponding to the pattern of the cells 63 of the flat plate ink plate 61. Is accepted. The ink received by the blanket 42 is then transferred onto the substrate 62. In this way, printing on the substrate 62 is performed by so-called gravure offset printing. Accordingly, the flat ink plate 61 is a so-called gravure plate for gravure offset printing.

(rack)
In the present embodiment, as shown in FIGS. 1 and 2, the rack 35 is configured by connecting a plurality of rack members 36, 37, and 38 in the horizontal direction. In the present embodiment, it is possible to flexibly cope with an increase in the size of the printing press 5 by configuring the rack 35 by connecting the plurality of rack members 36, 37, 38 in the horizontal direction as described above. Is intended to be. Hereinafter, the rack 35 of the printing machine 5 according to the present embodiment will be described in detail.

  As described above, the rack 35 is configured by connecting a plurality of rack members in the horizontal direction. In this case, the arrangement and dimensions of each rack member are set according to the positions of the main components of the printing machine 5. Here, as shown in FIG. 2, in the present embodiment, it is considered that the printing machine 5 is divided into five regions R <b> 1 to R <b> 5 according to the positions of main components of the printing machine 5. Specifically, the printing machine 5 is an area upstream of the cell 63 of the flat plate 61 and an acceleration region R1 where the transfer roll 43 before contacting the flat plate 61 is accelerated, It is an area where the cells 63 of the flat plate 61 are located, the ink receiving area R2 where the ink in the cells 63 is received by the transfer roll 43, and the area between the flat plate 61 and the substrate 62. An acceleration / deceleration region R3 where the transfer roll 43 is accelerated or decelerated, an area where the substrate 62 is located, and an ink transfer region R4 where the ink on the transfer roll 43 is transferred to the substrate 62, and a substrate The area is downstream of 62, and is divided into a deceleration area R5 in which the transfer roll 43 after the ink is transferred onto the substrate 62 is decelerated.

  The “upstream side” and the “downstream side” are the upstream side and the downstream side when the traveling direction S shown in FIGS. 1 and 2 is used as a reference. More specifically, in FIGS. 1 and 2, “upstream side” is the left side, and “downstream side” is the right side.

  Hereinafter, each rack member will be described with reference to correspondence with the regions R1 to R5. As shown in FIG. 2, the rack member corresponding to the ink transfer region R <b> 4 is the first rack member 36. As shown in FIG. 2, in the present embodiment, the first rack member 36 is a rack member corresponding not only to the ink transfer region R4 but also to the ink receiving region R2 and the acceleration / deceleration region R3. This is because the ink is transferred onto the base material 62 with high accuracy until the ink on the transfer roll 43 is transferred onto the base material 62 after the ink is received on the transfer roll 43. This is because it is preferable that the heights and periods of these are precisely aligned. For this reason, the rack member corresponding to the ink receiving region R2, the acceleration / deceleration region R3, and the ink transfer region R4 is composed of a single first rack member 36.

  As shown in FIG. 2, the rack member corresponding to the acceleration region R1 is the second rack member 37, and the rack member corresponding to the deceleration region R5 is the third rack member 38. As described above, in the present embodiment, the rack 35 includes the first rack member 36 corresponding to the ink receiving region R2, the acceleration / deceleration region R3, and the ink transfer region R4, the second rack member 37 corresponding to the acceleration region R1, The third rack member 38 corresponding to the deceleration region R5 is connected in the horizontal direction.

(Buffer member)
As shown in FIG. 2, a buffer member 39 is interposed between the adjacent rack members 36, 37, and 38. The buffer member 39 is provided to prevent the adjacent rack members 36, 37, and 38 from colliding with each other due to a horizontal impact generated at the time of collision even if the pinion collides with the rack. It is.
Generally, each rack member 36, 37, 38 is made of a hard material such as a metal material. For this reason, when the adjacent rack members 36, 37, 38 collide with each other, it is considered that the rack members 36, 37, 38 are cut by the impact of the collision, thereby generating metal pieces. When such a metal piece adheres to the transfer roll 43 or the like, the metal piece is mixed into the ink transferred onto the base material 62, thereby deteriorating the printing quality.
Here, according to the present embodiment, the buffer members 39 are interposed between the adjacent rack members 36, 37, 38, so that the adjacent rack members 36, 37, 38 can be prevented from contacting each other. Thereby, it is possible to prevent the rack members 36, 37, and 38 from being damaged, thereby preventing foreign matters such as metal pieces from being generated.

  As the buffer member 39, a material having an elastic modulus (elastic coefficient) suitable for preventing adjacent rack members 36, 37, and 38 from contacting each other is used. Here, an appropriate value of the elastic modulus is calculated according to the distance between the adjacent rack members 36, 37, 38, the magnitude of impact expected when the pinion collides with the rack, and the like. For example, when the spacing between adjacent rack members 36, 37, 38 is in the range of 1 μm to 30 mm, and the traveling speed of the transfer roll 43 is in the range of 1 to 2000 mm / s, the buffer member As 39, urethane, rubber or the like is used.

  Incidentally, when the pinion 45 collides with the rack 35, not only the concern that the adjacent rack members 36, 37, 38 come into contact with each other as described above, but also the pinion 45 due to an impact when the pinion 45 collides with the rack 35. There is also a concern that will vibrate. When the pinion 45 vibrates, the transfer roll 43 connected to the pinion 45 also vibrates, so that it can be considered that unevenness occurs in the thickness of the ink transferred onto the substrate 62.

Configuration for Preventing Ink Unevenness In this embodiment, in order to prevent unevenness in the thickness of the ink due to the vibration of the pinion 45, the impact when the pinion 45 collides with the rack 35 is as much as possible. A configuration for reducing the size is adopted. The details of such a configuration will be described below with reference to FIGS.

[Configuration for mitigation]
First, a configuration for reducing the impact when the pinion 45 collides with the rack 35 will be described.

(Vertical elastic member)
In the present embodiment, the first rack member 36 is movable in the vertical direction and the horizontal direction with respect to the rack base 30. As shown in FIGS. 1 and 3, a plurality of springs 11 (vertical elastic members) that can expand and contract in the vertical direction are interposed between the first rack member 36 and the rack base 30. Therefore, when the pinion 45 collides with the first rack member 36, the first rack member 36 can move elastically downward with respect to the rack base 30 and the frame 55. The downward movement of the first rack member 36 can mitigate the impact when the pinion 45 collides with the first rack member 36, and thereby the pinion 45 vibrates in the vertical direction during the collision. Can be prevented or suppressed. As a result, the transfer unit 40 can be prevented or suppressed from vibrating in the vertical direction with respect to the base material 62. This can prevent the thickness of the ink transferred onto the base material 62 from becoming uneven. For example, the thickness of the ink transferred onto the substrate 62 becomes non-uniform, and as a result, fine streaky irregularities, so-called step irregularities, appear in a direction perpendicular to the traveling direction S or in an oblique direction. Can be prevented.

  Preferably, the spring 11 is preferentially attached to a portion of the first rack member 36 corresponding to the ink transfer region R4. This is because preventing or suppressing the vibration of the transfer unit 40 in the ink transfer region R4 is most effective in preventing unevenness in the thickness of the ink transferred onto the substrate 62. Further, in the ink transfer region R4, in order to secure a desired printing pressure of the ink, it is considered that the transfer roll 43 is strongly pushed downward, and thus the pinion 45 strongly collides with the first rack member 36. . Therefore, as shown in FIG. 3, it is preferable that the spring 11 is attached to at least a portion of the first rack member 36 corresponding to the ink transfer region R4. Thereby, it is possible to prevent or suppress the transfer unit 40 from vibrating in the vertical direction with respect to the base material 62 in the ink transfer region R4. This can prevent unevenness in the thickness of the ink transferred to the substrate 62.

  Further, when the transfer roll 43 receives the ink in the cell 63 of the flat plate ink plate 61, the transfer roll 43 may be strongly pushed downward with respect to the flat plate ink plate 61. Therefore, preferably, as shown in FIG. 3, the spring 11 is attached not only to the portion corresponding to the ink transfer region R4 but also to the portion corresponding to the ink receiving region R2 in the first rack member 36. Thereby, it is possible to prevent or suppress the transfer unit 40 from vibrating in the vertical direction in the ink receiving region R2. This can prevent unevenness in the thickness of the ink received by the transfer roll 43.

  FIG. 3 shows an example in which one spring 11 is attached to each portion of the first rack member 36 corresponding to the ink receiving region R2 and the ink transfer region R4. However, the number of springs 11 to be attached is not particularly limited. For example, a plurality of springs 11 may be attached to portions of the first rack member 36 corresponding to the ink receiving region R2 and the ink transfer region R4. By providing the plurality of springs 11 in this way, it is possible to uniformly disperse the impact on the first rack member 36 when the pinion 45 collides with the first rack member 36 in the vertical direction. For this reason, the organic layer which consists of a uniform film thickness can be produced | generated more reliably.

(Elastic force adjusting member)
As shown in FIG. 3, the spring 11 is attached to the first rack member 36 by being pressed by a spring load adjusting bolt (elastic force adjusting member) 11a. In this case, the elastic force acting on the first rack member 36 from the spring 11 can be adjusted by adjusting the tightening degree of the spring load adjusting bolt 11a. Accordingly, it is possible to optimally adjust the degree to which the impact in the vertical direction when the pinion 45 collides with the first rack member 36 is relaxed by the spring 11.

(Vertical shock absorbing member)
Further, as shown in FIG. 6, below the first rack member 36, a shock absorber (up and down direction) for suppressing the first rack member 36 from being rapidly pushed back upward by the elastic restoring force of the spring 11 is provided. Shock absorbing member) 15 is provided. Specifically, the shock absorber 15 is provided at the lower end of the rack base 30, and the protruding portion 15 a of the shock absorber 15 passes through the rack base 30 and is attached to the first rack member 36. Thereby, it is possible to prevent the transfer unit 40 from vibrating in the vertical direction due to the restoring force of the spring 11.

(Horizontal elastic member)
Further, as shown in FIG. 4, support arms 18 are fixed to both sides (both ends) of the first rack member 36 in the horizontal direction. The support arms 18 are horizontally fixed to a frame 55. The direction support part 17 is abutted or fixed. As shown in FIG. 4, a spring (horizontal elastic member) 12 that can be expanded and contracted in the horizontal direction is provided in the horizontal support portion 17. Further, as described above, the rack base 30 is attached to the frame 55 via the connecting portion 58. Therefore, when the pinion 45 collides with the first rack member 36, the first rack member 36 can move elastically in the horizontal direction with respect to the rack base 30 and the frame 55. The movement of the first rack member 36 in the horizontal direction can alleviate the impact when the pinion 45 collides with the rack 35, thereby preventing the pinion 45 from vibrating in the horizontal direction during the collision or Can be suppressed. As a result, the transfer unit 40 can be prevented or suppressed from vibrating in the horizontal direction with respect to the base material 62. This can prevent the thickness of the ink transferred onto the base material 62 from becoming uneven.

  The above-described buffer member 39 also adjusts the amount of displacement of the first rack member 36 in the horizontal direction when the pinion 45 and the first rack member 36 collide, like the spring 12 described herein. It is a member. However, when the pinion 45 and the first rack member 36 collide, the above-described buffer member 39 adjusts the amount of displacement of the first rack member 36 relative to the adjacent second rack member 37 or third rack member 38. It is a member. On the other hand, the spring 12 described here is a member for adjusting the amount of displacement of the first rack member 36 relative to the rack base 30 when the pinion 45 and the first rack member 36 collide. In other words, the buffer member 39 and the spring 12 have different displacement standards for the first rack member 36.

(Elastic force adjusting member)
As shown in FIG. 4, the spring 12 is attached to the first rack member 36 by being pressed by a spring load adjusting bolt (elastic force adjusting member) 12 a penetrating the horizontal support portion 17. In this case, the elastic force acting on the first rack member 36 from the spring 12 can be adjusted by adjusting the tightening degree of the spring load adjusting bolt 12a. Accordingly, it is possible to optimally adjust the extent to which the magnitude of the impact in the horizontal direction when the pinion 45 collides with the first rack member 36 is relaxed by the spring 12.

Preferably, the elastic modulus (elastic coefficient) of the spring 12 is based on the elastic modulus (elastic coefficient) of the buffer member 39 interposed between the first rack member 36 and the second rack member 37 or the third rack member 38. Is also getting bigger. In this case, when the pinion 45 and the first rack member 36 collide, the amount of displacement of the first rack member 36 in the horizontal direction is determined depending on the spring 12 more greatly than the buffer member 39. Thus, it is possible to reliably prevent or suppress the pinion 45 from vibrating in the horizontal direction in the event of a collision.
When the stress applied to the predetermined member is represented by σ (N / m ² ) and the strain is represented by ε, the elastic modulus (elastic coefficient) K (N / m ² ) is represented by the following formula.

(Horizontal shock absorbing member)
Similarly to the above-described shock absorber 15, a shock absorber (not shown) for suppressing the horizontal spring 12 from being pushed back rapidly may be provided at the end of the first rack member 36. This can prevent the transfer unit 40 from vibrating in the left-right direction due to the restoring force of the spring 12.

[Configuration for position optimization]
Next, a configuration for optimizing the position of the rack 35 with respect to the pinion 45 and thereby reducing the impact when the pinion 45 collides with the rack 35 will be described.

(Position adjustment mechanism)
As shown in FIGS. 1 and 5, an eccentric cam roller (position adjusting mechanism) 1 that adjusts the vertical position of the rack 35 and the rack base 30 with respect to the frame 55 is provided on the side of the frame 55. By rotating the eccentric cam roller 1, the eccentric cam roller 1 can be brought into contact with the lower end of the rack base 30, and the rack base 30 and the rack 35 can be pushed upward from below.

(Position detection mechanism)
Further, as shown in FIGS. 1 and 7, in the vicinity of both end portions of the rack 35 (the end portion of the second rack member 37 and the end portion of the third rack member 38), the position of the rack 35 in the vertical direction with respect to the frame 55. A vertical laser displacement meter (position detection mechanism) 21 is provided. Further, in the vicinity of both end portions of the rack 35 (the end portion of the second rack member 37 and the end portion of the third rack member 38), a horizontal laser displacement meter (position Detection mechanism) 22 is provided. The vertical laser displacement meter 21 and the horizontal laser displacement meter 22 irradiate the detection unit 35a (see FIG. 7) attached to the end of the rack 35 with a laser beam, and the laser beam from the detection unit 35a. In response to the reflection, the distances between the vertical laser displacement meter 21 and the horizontal laser displacement meter 22 and the detector 35a are measured.

(Position detection device)
As shown in FIGS. 1 and 5, a dial gauge (position detection device) 25 for detecting the vertical position of the rack base 30 with respect to the frame 55 may be further provided on the side of the frame 55.

  According to the present embodiment, the position of the rack 35 relative to the pinion 45 can be optimized by using the position adjustment mechanism and the position detection mechanism or position detection device described above. For example, by controlling the eccentric cam roller 1 based on information from the vertical laser displacement meter 21, the position of the rack 35 relative to the pinion 45 in the vertical direction can be optimized. Thereby, the impact when the pinion 45 collides with the rack 35 can be further reduced.

  Next, the operation of the present embodiment having such a configuration will be described. First, an organic layer produced by printing with the printing machine 5 will be described, and then a printing method using the printing machine 5 will be described.

Organic Layer First, an organic layer produced by the printing machine 5 will be described with reference to FIG.

  The organic layer used in organic EL and organic thin film transistors (organic TFTs) requires film uniformity. Therefore, it is preferable to use the printing machine 5 according to the present embodiment.

  The substrate 62 to which the ink is transferred preferably includes a substrate on which an organic layer used for the organic EL is placed. As such a base material 62, for example, a glass substrate (nothing is placed), a glass substrate on which some organic layers used for organic EL or organic TFT are already placed, or an insulating layer And some glass layers on which electrodes (such as ITO) have already been placed, film substrates on which nothing is placed, and organic layers used in organic EL and organic TFTs have already been placed A film substrate on which an insulating layer and an electrode (such as ITO) are already placed can be used.

  Examples of the organic layer formed on or placed on the base material 62 such as a glass substrate or a film substrate include a light emitting layer 72, an electron transport layer 71, an intermediate layer 74, a hole injection layer / positive layer, and the like. Examples thereof include a hole transport layer 75 (see FIG. 9). Here, the light emitting layer 72 has a thickness of about 80 nm, the intermediate layer 74 has a thickness of about 20 nm, and the hole injection layer / hole transport layer 75 has a thickness of about 80 nm. Among these, the light emitting layer 72 is particularly required to have a uniform film thickness. Therefore, when generating such a light emitting layer 72, the printing machine 5 by this Embodiment exhibits a high effect.

Printing Method Next, a printing method using the printing machine 5 will be described.

  First, the vertical position of the rack 35 with respect to the frame 55 is adjusted (adjustment process). Specifically, the eccentric cam roller 1 is rotated by an appropriate amount while measuring the position of the rack base 30 with respect to the frame 55 by the dial gauge 25. As a result, the vertical position of the rack 35 with respect to the frame 55 can be optimally adjusted. Thereafter, the rack base 30 is fixed to the frame 55 at the adjusted position (see arrow A in FIG. 8A).

  Next, the blanket unit 40 is positioned below, whereby the pinion 45 and the rack 35 are engaged (engagement step) (see arrow B in FIG. 8A). At this time, since the vertical position of the rack 35 with respect to the frame 55 is adjusted by the adjustment step described above, the gap (backlash) between the rack 35 and the pinion 45 is an appropriate value.

  Next, when the transfer roll 43 is rotated (see arrow C in FIG. 8A), the pinion 45 is rotated on the rack 35 and the transfer unit 40 is moved in the horizontal direction with respect to the frame 55 (see FIG. 1). It is moved in the traveling direction S) (horizontal direction moving step) (see arrow D in FIG. 8B). By moving the transfer unit 40 on the frame 55 in this way, first, the ink (paint) discharged from the ink supply unit 66 is carried by the doctor 65 to the flat ink plate 61. Next, the ink is filled into the cells 63 of the plate-shaped ink plate 61. Thereafter, the ink filled in the cell 63 is received by the blanket 42 of the transfer roll 43 of the transfer unit 40. Next, the ink received by the blanket 42 is transferred onto the substrate 62 placed on the substrate surface plate 57.

  Thereafter, the transfer unit 40 is positioned upward, and the engagement between the pinion 45 and the rack 35 is released (release process) (see arrow E in FIG. 8C). Next, the transfer unit 40 is moved in the horizontal direction and returned to the original position (returning step) (see arrow F in FIG. 8C).

  Here, according to the present embodiment, as shown in FIG. 3, a plurality of springs 11 that extend in the vertical direction are interposed between the first rack member 36 of the rack 35 and the rack base 30. For this reason, it is possible to reduce the impact when the pinion 45 collides with the first rack member 36 in the vertical direction, thereby preventing or suppressing the pinion 45 from vibrating in the vertical direction due to the impact of the collision. it can. As a result, it is possible to prevent or suppress the transfer roll 43 from vibrating in the vertical direction with respect to the base material 62, thereby making the thickness of the ink transferred onto the base material 62 nonuniform. Can be prevented.

  In addition, according to the present embodiment, the rack 35 is configured by connecting a plurality of rack members 36, 37, and 38 in the horizontal direction. Therefore, when the pinion 45 collides with the first rack member 36 in the vertical direction, the entire rack 35 (all of the first rack member 36, the second rack member 37, and the third rack member 38) is displaced in the vertical direction. Instead, only the first rack member 36 is displaced in the vertical direction. Alternatively, the first rack member 36 is largely displaced in the vertical direction as compared with the second rack member 37 and the third rack member 38. Thus, by reducing the number of members that are displaced in response to the collision from the pinion 45, the magnitude of the impact caused by the collision can be further reduced. As a result, vibration generated in the pinion 45 as a reaction of impact can be suppressed.

  Further, according to the present embodiment, as shown in FIG. 4, the support arms 18 are fixed to both sides (both ends) of the first rack member 36 of the rack 35 in the horizontal direction. 18 is in contact with the horizontal support 17 fixed to the frame 55. A spring (horizontal elastic member) 12 that expands and contracts in the horizontal direction is provided in the horizontal support portion 17. For this reason, the impact when the pinion 45 collides with the first rack member 36 in the horizontal direction can be mitigated, thereby preventing or suppressing the pinion 45 from vibrating in the horizontal direction due to the impact of the collision. it can. As a result, it is possible to prevent or suppress the transfer roll 43 from vibrating in the horizontal direction with respect to the base material 62, thereby making the thickness of the ink transferred onto the base material 62 non-uniform. Can be prevented.

  Further, according to the present embodiment, as described above, the rack 35 is configured by connecting a plurality of rack members in the horizontal direction. For this reason, even when the printing machine 5 is enlarged in order to meet the demand for an increase in the size of the base material 62, the dimensions of the printing machine 5 can be obtained by connecting a predetermined number of rack members in the horizontal direction. Can be set arbitrarily.

  Further, according to the present embodiment, the buffer member 39 is interposed between the adjacent rack members 36, 37 and 38. For this reason, it can prevent that the adjacent rack members 36, 37, and 38 contact each other. Thereby, it is possible to prevent the rack members 36, 37, and 38 from being damaged, thereby preventing foreign matters such as metal pieces from being generated.

(Modification of the number of rack members)
In the present embodiment, the rack 35 includes a first rack member 36 corresponding to the ink receiving area R2, the acceleration / deceleration area R3, and the ink transfer area R4, a second rack member 37 corresponding to the acceleration area R1, and a deceleration area. The third rack member 38 corresponding to R5 is connected in the horizontal direction. However, the configuration of the rack member is not limited to the above-described configuration, and the rack 35 can be configured using an arbitrary number of rack members according to the dimensions of each component of the printing machine 5 and the like.

(Modification of the configuration of the rack member and the elastic member)
Further, in the present embodiment, an example is shown in which the spring 11 (vertical elastic member) is attached only to the first rack member 36 among the plurality of rack members. That is, the spring 11 is not attached to the second rack member 37 and the third rack member 38, and the second rack member 37 and the third rack member 38 are fixed to the rack base 30 and the frame 55. showed that. However, the present invention is not limited to this, and the second rack member 37 or the third rack member 38 is movable with respect to the rack base 30 and the frame 55, and the second rack member 37 or the third rack member. A spring 11 (vertical elastic member) may be attached to 38.
In the present embodiment, an example is shown in which the spring 11 (vertical elastic member) is attached to a portion of the first rack member 36 corresponding to the ink receiving region R2 and the ink transfer region R4. However, the present invention is not limited to this, and a portion to which the spring 11 (vertical elastic member) is attached can be appropriately selected.

For example, the spring 11 (vertical elastic member) is attached only to the first rack member 36 among the plurality of rack members, and the spring 11 is applied only to the portion of the first rack member 36 corresponding to the ink transfer region R4. (Vertical elastic member) may be attached.
Alternatively, the spring 11 (vertical elastic member) is attached only to the first rack member 36 among the plurality of rack members, and the portion of the first rack member 36 corresponding to the ink receiving region R2, the acceleration / deceleration region A spring 11 (vertical elastic member) may be attached to each of the portion corresponding to R3 and the portion corresponding to the ink transfer region R4.
Alternatively, the spring 11 (vertical elastic member) may be attached not only to the first rack member 36 but also to the second rack member 37 among the plurality of rack members. Specifically, the spring 11 (vertical elastic member) is attached to the acceleration region R1 of the second rack member 37. In this case, the spring 11 (vertical elastic member) may be attached to each portion of the first rack member 36 corresponding to the ink receiving region R2 and the ink transfer region R4. Alternatively, the spring 11 (vertical elastic member) is attached to each of the portion corresponding to the ink receiving region R2, the portion corresponding to the acceleration / deceleration region R3, and the portion corresponding to the ink transfer region R4 in the first rack member 36. May be.

(Variation of configuration for driving)
In the present embodiment, an example in which the transfer unit 40 including the transfer roll 43 travels on the frame 55 is shown. However, the present invention is not limited to this, and the frame 55 may be driven in the horizontal direction while the transfer unit 40 including the transfer roll 43 is stationary in the horizontal direction. For example, the pinion 45 is provided with a rotation drive mechanism (not shown) that rotationally drives the pinion 45 and the transfer roll 43, and the pinion 45 and the rack 35 are always firmly engaged with each other. Height adjustment between 35 may be performed. In this case, the rotational movement of the pinion 45 is transmitted to the frame 55 through the rack 35, and thereby the frame 55 can be driven in the horizontal direction. At this time, when the transfer roll 43 comes into contact with the flat plate ink plate 61, ink is received by the blanket 42 of the transfer roll 43 with a pattern corresponding to the pattern of the cells 63 of the flat plate ink plate 61. The ink received by the blanket 42 is then transferred onto the substrate 62.
In addition, although the example in which the rotation drive mechanism (not shown) is provided in the pinion 45 was shown, it is not restricted to this, The frame 55 may be provided with the horizontal drive mechanism.

(Modification of configuration for position optimization)
In the present embodiment, an example in which the eccentric cam roller 1 that adjusts the vertical position of the rack 35 and the rack base 30 with respect to the frame 55 is provided on the side of the frame 55 is shown. However, the present invention is not limited to this. As shown in FIG. 10, as shown in FIG. 10, the vertical movement mechanism 10 a that adjusts the vertical position of the rack 35 and the rack base 30 with respect to the frame 55 and the rack 35. Also, a horizontal movement mechanism 10b that adjusts the horizontal position of the rack base 30 with respect to the frame 55 may be provided.

  According to this modification, the vertical position of the rack 35 and the rack base 30 with respect to the frame 55 can be adjusted by the vertical movement mechanism 10a based on the information from the vertical laser displacement meter 21. Further, the horizontal position of the rack 35 and the rack base 30 with respect to the frame 55 can be adjusted by the horizontal movement mechanism 10b based on the information from the horizontal laser displacement meter 22. As described above, according to the present modification, the position of the rack 35 can be adjusted in the two directions of the vertical direction and the horizontal direction. For this reason, the position of the rack 35 with respect to the pinion 45 can be adjusted more optimally. Thereby, the impact when the pinion 45 collides with the rack 35 can be further reduced.

  In addition, the vertical direction moving mechanism 10a and the horizontal direction moving mechanism 10b for adjusting the position of the rack 35 may be individually provided in each rack member 36, 37, 38. As a result, the positions of the rack members 36, 37, and 38 can be individually adjusted.

(Modification of printing method)
Moreover, in this Embodiment, the example on which the printing to the base material 62 was implemented by gravure offset printing was shown. However, the present invention is not limited to this, and printing on the base material 62 may be performed by flexographic printing, for example. In this case, as shown in FIG. 11, a transfer roll 43 having a roll body 41 and a flexographic plate 47 provided on the outer peripheral surface of the roll body 41 is used as the transfer roll 43. As the flat plate ink plate 61, an anilox plate for supplying ink to the flexographic plate 47 is used.

  In this case, the ink in the cell 63 of the flat plate plate 61 is received by the convex portion of the flexographic plate 47 of the transfer roll 43. And the ink of the convex part of the flexographic plate 47 is transferred on the base material 62 with the pattern according to the pattern of the convex part.

(Other variations)
In the present embodiment, an example is shown in which the horizontal support portions 17 including the springs 12 are provided on both sides (both ends) of the first rack member 36 in the horizontal direction. However, the present invention is not limited to this, and the horizontal support 17 including the spring 12 may be provided that is fixed to the frame 55 only at one horizontal end of the first rack member 36. When the pinion 45 collides with the first rack member 36, the first rack member 36 tends to move to one side in the traveling direction of the frame 55. Thus, the horizontal support portion 17 is provided only at one end. When the spring 12 is provided, the horizontal support portion 17 and the spring 12 are preferably provided on one side of the frame 55 in the traveling direction with respect to the first rack member 36.

  In the present embodiment, an example in which the vertical laser displacement meter 21 and the horizontal laser displacement meter 22 are provided in the vicinity of both sides (both ends) of the rack 35 is shown. However, the present invention is not limited to this, and the vertical laser displacement meter 21 and the horizontal laser displacement meter 22 may be provided only in the vicinity of one end of the rack 35. Further, only one of the vertical laser displacement meter 21 or the horizontal laser displacement meter 22 may be provided in the vicinity of both sides (both ends) of the rack 35.

Second Embodiment Next, with reference to FIGS. 12 and 13, a second embodiment of the present invention will be described. 10 and 11 are a side view and a plan view showing a printing machine according to the second embodiment of the present invention.

  The second embodiment shown in FIG. 12 and FIG. 13 differs only in that the ink plate is composed of a roll-shaped ink plate having a plurality of cells on its outer peripheral surface. 9 is substantially the same as the first embodiment shown in FIG. In the second embodiment shown in FIG. 12 and FIG. 13, the same parts as those in the first embodiment shown in FIG. 1 to FIG.

As shown in FIGS. 12 and 13, the printing machine 5 for transferring ink onto the base material 62 is disposed above the frame 55 on which the base material 62 is placed, and on the outer peripheral surface thereof. A roll-shaped ink plate 68 having a plurality of cells 69 and a transfer roll that is disposed above the frame 55 and contacts the roll-shaped ink plate 68 to receive the ink in the cells 69 and transfer the ink onto the substrate 62. 43.

  A rack base 30 is provided on the side of the frame 55, and a rack 35 is attached on the rack base 30. A pinion 45 that can be engaged with the rack 35 from above is attached to the side of the transfer roll 43.

  Further, in the vicinity of the roll-shaped ink plate 68, an ink supply unit 66 that supplies ink to the outer peripheral surface of the roll-shaped ink plate 68, and the ink supplied from the ink supply unit 66 is placed in a cell 69 of the roll-shaped ink plate 68. A doctor 65 to be filled is provided. Although not shown, the roll ink plate 68 is provided with an ink plate rotation drive mechanism for driving the roll ink plate 68 to rotate.

(rack)
Also in the present embodiment, the rack 35 is configured by connecting a plurality of rack members 36 and 38 in the horizontal direction as in the case of the first embodiment described above. Hereinafter, a specific configuration of the rack member will be described.

  As shown in FIG. 13, in the present embodiment, it is considered that the printing machine 5 is divided into three regions R <b> 3 to R <b> 5 according to the positions of main components of the printing machine 5. Specifically, the printing machine 5 is an area upstream of the base material 62, an acceleration / deceleration area R3 in which the transfer roll 43 is accelerated or decelerated, and an area in which the base material 62 is positioned. The ink transfer region R4 in which the ink on the roll 43 is transferred to the base material 62 and the downstream region of the base material 62, and the transfer roll 43 after the ink is transferred onto the base material 62 are decelerated. And a deceleration region R5.

  As shown in FIG. 13, the rack member corresponding to the acceleration / deceleration region R3 and the ink transfer region R4 is the first rack member 36. The rack member corresponding to the deceleration region R5 is the third rack member 38. Thus, in the present embodiment, the rack 35 connects the first rack member 36 corresponding to the acceleration / deceleration region R3 and the ink transfer region R4 and the third rack member 38 corresponding to the deceleration region R5 in the horizontal direction. It is comprised by doing.

  Also in the present embodiment, the first rack member 36 is movable in the vertical direction and the horizontal direction with respect to the rack base 30 as in the case of the first embodiment described above. As shown in FIG. 12, a spring 11 (vertical elastic member) that extends in the vertical direction is interposed between the first rack member 36 and the rack base 30. Therefore, when the pinion 45 collides with the first rack member 36, the first rack member 36 can move elastically downward with respect to the rack base 30 and the frame 55.

Further, the third rack member 38 may be movable in the vertical direction and the horizontal direction with respect to the rack base 30, similarly to the first rack member 36. Further, the spring 11 (vertical elastic member) may be attached to the third rack member 38.
Alternatively, the spring 11 may not be attached to the third rack member 38, and the third rack member 38 may be fixed to the rack base 30 and the frame 55.

  Although not shown, in the present embodiment as well, in the same manner as in the first embodiment described above, a spring (horizontal direction) that extends and contracts horizontally between the first rack member 36 and the rack base 30. (Elastic member) 12 may be interposed. Although not shown, the eccentric cam roller 1, the spring load adjustment bolt 11a, the spring load adjustment bolt 12a, the shock absorber, the vertical movement mechanism 10a, the horizontal movement mechanism 10b, the vertical movement shown in the first embodiment described above. A direction laser displacement meter 21, a horizontal laser displacement meter 22, a dial gauge 25, or the like may be provided as appropriate.

Printing Method Next, a printing method using the printing machine 5 according to this embodiment will be described.

  First, the roll ink plate 68 and the transfer roll 43 are rotationally driven while the roll ink plate 68 and the transfer roll 43 are brought into contact with each other. As a result, the ink filled in the cells 63 of the roll-shaped ink plate 68 is received by the blanket 42 of the transfer roll 43.

  Next, the vertical position of the rack 35 with respect to the frame 55 is adjusted (adjustment process), and the pinion 45 and the rack 35 are engaged (engagement process). Since these steps are substantially the same as those in the first embodiment described above, detailed description thereof is omitted.

  Next, when the transfer roll 43 is rotated, the pinion 45 is rotated and moved on the rack 35, and the transfer unit 40 is moved in the horizontal direction with respect to the frame 55 (horizontal movement step). As the transfer roll 43 runs on the frame 55 in this manner, the ink received by the blanket 42 is transferred onto the base material 62 placed on the base material platen 57.

  Here, according to the present embodiment, as shown in FIG. 12, the spring 11 that can be expanded and contracted in the vertical direction is interposed between the first rack member 36 of the rack 35 and the rack base 30. For this reason, it is possible to reduce the impact when the pinion 45 collides with the first rack member 36 in the vertical direction, thereby preventing or suppressing the pinion 45 from vibrating in the vertical direction due to the impact of the collision. it can. As a result, it is possible to prevent or suppress the transfer roll 43 from vibrating in the vertical direction with respect to the base material 62, thereby making the thickness of the ink transferred onto the base material 62 nonuniform. Can be prevented.

  Further, according to the present embodiment, as described above, the rack 35 is configured by connecting a plurality of rack members in the horizontal direction. For this reason, even when the printing machine 5 is enlarged in order to meet the demand for an increase in the size of the base material 62, the dimensions of the printing machine 5 can be obtained by connecting a predetermined number of rack members in the horizontal direction. Can be set arbitrarily.

  Further, according to the present embodiment, the buffer member 39 is interposed between the adjacent rack members 36 and 38. For this reason, it can prevent that the adjacent rack members 36 and 38 contact each other. As a result, the rack members 36 and 38 can be prevented from being damaged, and this can prevent foreign matters such as metal pieces from being generated.

  As a printing method according to the present embodiment, gravure offset printing may be used or flexographic printing may be used as in the case of the first embodiment.

  In the present embodiment, an example in which the transfer roll 43 travels on the frame 55 is shown. However, the present invention is not limited to this, and the frame 55 may be driven in the horizontal direction while the transfer roll 43 is stationary in the horizontal direction, as in the case of the modification of the first embodiment described above. .

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS. Here, FIGS. 14 and 15 are a side view and a plan view showing a printing machine according to the third embodiment of the present invention.

  In the third embodiment shown in FIGS. 14 and 15, direct gravure printing is adopted as a printing method. In the third embodiment shown in FIGS. 14 and 15, the same parts as those in the first embodiment shown in FIGS. 1 to 7 or the second embodiment shown in FIGS. Detailed description will be omitted.

As shown in FIGS. 14 and 15, the printer 5 for transferring ink onto the base material 62 is provided on the frame 55 on which the base material 62 is placed, the roll body 41, and the outer peripheral surface of the roll body 41. A transfer roll 43 that transfers the ink onto the substrate 62, an ink supply unit 66 that supplies ink to the direct gravure plate 48 of the transfer roll 43, and an ink supply unit 66 that supplies the direct gravure plate 48. And a doctor 65 that fills the direct gravure plate 48 of the transfer roll 43 with ink.

  A rack base 30 is provided on the side of the frame 55, and a rack 35 is attached on the rack base 30. A pinion 45 that can be engaged with the rack 35 from above is attached to the side of the transfer roll 43.

(rack)
Also in the present embodiment, the rack 35 is configured by connecting a plurality of rack members 36 and 38 in the horizontal direction as in the case of the second embodiment described above. Further, between the first rack member 36 and the rack base 30, a spring 11 (vertical elastic member) that can be expanded and contracted in the vertical direction is interposed. Since these configurations are substantially the same as those of the second embodiment shown in FIGS. 12 and 13, detailed description thereof is omitted.

Further, the third rack member 38 may be movable in the vertical direction and the horizontal direction with respect to the rack base 30, similarly to the first rack member 36. Further, the spring 11 (vertical elastic member) may be attached to the third rack member 38.
Alternatively, the spring 11 may not be attached to the third rack member 38, and the third rack member 38 may be fixed to the rack base 30 and the frame 55.

  Although not shown, in the present embodiment as well, in the same manner as in the first embodiment described above, a spring (horizontal direction) that extends and contracts horizontally between the first rack member 36 and the rack base 30. (Elastic member) 12 may be interposed. Although not shown, the eccentric cam roller 1, the spring load adjustment bolt 11a, the spring load adjustment bolt 12a, the shock absorber, the vertical movement mechanism 10a, the horizontal movement mechanism 10b, the vertical movement shown in the first embodiment described above. A direction laser displacement meter 21, a horizontal laser displacement meter 22, a dial gauge 25, or the like may be provided as appropriate.

Printing Method Next, a printing method using the printing machine 5 according to this embodiment will be described.

  First, the vertical position of the rack 35 with respect to the frame 55 is adjusted (adjustment process). Next, the pinion 45 and the rack 35 are engaged (engagement step). Since these steps are substantially the same as those in the first embodiment described above, detailed description thereof is omitted.

  Next, the transfer roll 43 is rotationally driven. When the transfer roll 43 rotates, the ink discharged from the ink supply unit 66 is filled into the direct gravure plate 48 of the transfer roll 43 by the doctor 65.

  When the transfer roll 43 is rotated, the pinion 45 is rotated on the rack 35 and the transfer roll 43 is moved in the horizontal direction with respect to the frame 55. Thereafter, when the substrate 62 on the frame 55 reaches the transfer roll 43, the ink received by the direct gravure plate 48 is transferred onto the substrate 62 placed on the substrate surface plate 57.

  Here, according to the present embodiment, as shown in FIG. 14, the spring 11 that extends in the vertical direction is interposed between the first rack member 36 of the rack 35 and the rack base 30. For this reason, it is possible to reduce the impact when the pinion 45 collides with the first rack member 36 in the vertical direction, thereby preventing or suppressing the pinion 45 from vibrating in the vertical direction due to the impact of the collision. it can. As a result, it is possible to prevent or suppress the transfer roll 43 from vibrating in the vertical direction with respect to the base material 62, thereby making the thickness of the ink transferred onto the base material 62 nonuniform. Can be prevented.

  Further, according to the present embodiment, as described above, the rack 35 is configured by connecting a plurality of rack members in the horizontal direction. For this reason, even when the printing machine 5 is enlarged in order to meet the demand for an increase in the size of the base material 62, the dimensions of the printing machine 5 can be obtained by connecting a predetermined number of rack members in the horizontal direction. Can be set arbitrarily.

  Further, according to the present embodiment, the buffer member 39 is interposed between the adjacent rack members 36 and 38. For this reason, it can prevent that the adjacent rack members 36 and 38 contact each other. As a result, the rack members 36 and 38 can be prevented from being damaged, and this can prevent foreign matters such as metal pieces from being generated.

  In the present embodiment, an example in which the transfer roll 43 travels on the frame 55 is shown. However, the present invention is not limited to this, and the frame 55 may be driven in the horizontal direction while the transfer roll 43 is stationary in the horizontal direction, as in the case of the modification of the first embodiment described above. .

1 Eccentric cam roller (vertical position adjustment mechanism)
5 Printing Machine 10a Vertical Movement Mechanism 10b Horizontal Movement Mechanism 11 Spring (Vertical Elastic Member)
11a Spring load adjusting bolt (elastic force adjusting member)
12 Spring (horizontal elastic member)
12a Spring load adjustment bolt 15 Shock absorber (vertical shock absorbing member)
17 Horizontal support 18 Support arm 21 Vertical laser displacement meter (Up / down position detector)
22 Horizontal laser displacement meter (horizontal position detector)
25 Dial gauge (position detector)
30 rack base 35 rack 36 first rack member 37 second rack member 38 third rack member 39 buffer member 40 transfer unit 41 roll body 42 blanket 43 transfer roll 45 pinion 47 flexo plate 48 direct gravure plate 55 frame 56 ink platen 57 base plate 58 connecting portion 61 flat ink plate 62 base material 63 cell 65 doctor 66 ink supply portion 68 roll ink plate 69 cell 71 electron transport layer 72 light emitting layer 74 intermediate layer 75 hole injection layer / hole transport layer

Claims (18)

In a printing machine that transfers ink onto a substrate,
A frame on which the substrate is placed;
An ink plate having a plurality of cells filled with ink;
A transfer roll disposed above the frame and receiving the ink in the cells in contact with the ink plate, and transferring the ink onto the substrate;
A rack base attached to the frame;
A rack attached to the rack base;
A pinion provided on the transfer roll and engageable with the rack from above,
The rack is configured by connecting a plurality of rack members in a horizontal direction, and a buffer member is interposed between the adjacent rack members,
The plurality of rack members constituting the rack include a first rack member corresponding to a region where the base material is located,
A printing machine, wherein an elastic member is interposed between at least the first rack member and the rack base among the rack members.   The printing machine according to claim 1, wherein the elastic member includes a vertical elastic member that expands and contracts in the vertical direction.   A vertical shock absorbing member is provided below the first rack member, and suppresses the first rack member from being pushed back rapidly by an elastic restoring force of the vertical elastic member. The printing machine according to claim 2.   4. The printing press according to claim 2, wherein the vertical elastic member is provided at least in a region of the first rack member where the base material is located. 5.   The printing machine according to claim 1, wherein the elastic member includes a horizontal elastic member that expands and contracts in a horizontal direction.   A horizontal shock absorbing member is provided on a side of the first rack member, and suppresses the first rack member from being pushed back rapidly by an elastic restoring force of the horizontal elastic member. The printing press according to claim 5.   The elastic coefficient of the horizontal elastic member provided in the first rack member is larger than the elastic coefficient of the buffer member interposed between the first rack member and the rack member adjacent to the first rack member. The printing press according to claim 5 or 6, wherein the printing press is configured.   The printing machine according to claim 1, wherein a plurality of the elastic members are provided.   The printing machine according to claim 1, wherein the elastic member is attached to the first rack member via an elastic force adjusting member capable of appropriately adjusting an elastic force of the elastic member. A position detection mechanism for detecting the position of the rack;
The printing machine according to claim 1, further comprising a position adjustment mechanism that adjusts a vertical or horizontal position of the rack.   The printing machine according to claim 1, wherein the transfer roll has a roll body and a blanket provided on an outer peripheral surface of the roll body.   The printing machine according to claim 1, wherein the transfer roll includes a roll body and a flexographic plate provided on an outer peripheral surface of the roll body.   2. The printing press according to claim 1, wherein the ink plate is a flat ink plate disposed on the frame and having a plurality of cells on an upper surface thereof. The first rack member corresponds to a region where each cell of the plate-shaped ink plate is located in addition to a region where the base material is located,
The printing machine according to claim 13, wherein the plurality of rack members forming the rack further include a second rack member corresponding to a region on the upstream side of each cell of the flat plate.   The printing press according to claim 14, wherein an elastic member is interposed between the second rack member and the rack base.   The printing machine according to claim 14, wherein the second rack member is fixed to the rack base.   The printing press according to claim 1, wherein the ink plate is formed of a roll-shaped ink plate having a plurality of cells on an outer peripheral surface thereof.   The printing machine according to claim 13, wherein the plurality of rack members forming the rack further include a third rack member corresponding to a region on the downstream side of the base material.

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