JP5293494B2 - Printing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing device that highly-accurately executes precision printing such a printing to form an electrode pattern of a liquid-crystal display on a required substrate by printing. <P>SOLUTION: One set of two linear guide blocks 14 arranged in an X-axis direction is provided at the longitudinal intermediate part of a trestle 13. A moving table 15 includes a plate stage 17 and a printing-target stage 18. A linear guide rail 16 in the X-axis direction is mounted on the bottom face of the moving table. The linear guide rail in the X-axis direction is freely slidably mounted to the linear guide blocks 14 on the trestle 13. A transfer mechanism 19 including a blanket roll 10 is provided above the longitudinal intermediate part of the trestle 13. When executing print processing by bringing the blanket roll 10 into contact with a plate 11 on the plate stage 17 and a printing target 12 on the printing-target stage 18, respectively moved by traveling of the moving table 15, at required printing pressure, the relative position of a part where a load of the printing pressure acts on the moving table 15 and a load support point by each linear guide block 14 is maintained at a fixed level, thereby preventing changes both in deflection amount of the moving table 15 and in distortion amount of the linear guide blocks 14 to suppress displacement of the printing position. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a printing apparatus of a type that performs printing processing by bringing a printing roll such as a plate cylinder or a blanket roll into contact with a printing object or a plate held on a table running under the printing roll. is there.

  One of the printing technologies is offset printing. Among these, offset printing using an intaglio is a target to be printed from the blanket roll after ink is once transferred (received) to a blanket roll that rolls from the inked intaglio. It is known as a technique capable of printing the intaglio printing pattern on the surface to be printed with good reproducibility by performing retransfer (printing) of the ink to the surface.

  By the way, in recent years, as a method for forming an electrode pattern (conductive pattern) such as a liquid crystal display on a required substrate, a printing technique using a conductive paste as a printing ink instead of fine processing by etching a metal vapor deposition film, For example, a method of printing and forming an electrode pattern on a substrate using an intaglio offset printing technique has been proposed (see, for example, Patent Document 1 and Patent Document 2).

  When the electrode pattern of the liquid crystal display or the like is formed on the substrate, an electrode width as fine as about 10 μm may be required, for example. Furthermore, a plurality of electrode patterns may be formed on the substrate in a superimposed manner. In this case, the electrode pattern is overprinted by replacing the plate, but the electrode pattern may be destroyed if the printing position is shifted. Therefore, the required accuracy differs slightly depending on the object, but in the case of a fine electrode pattern in which the electrode width is about 10 μm, it is necessary to suppress the displacement of the printing position to be superimposed to several μm or less. is there.

  Therefore, when the electrode pattern is formed on the substrate by printing, an extremely high printing accuracy is required as compared with the conventional general offset printing in which characters and images are printed on paper or the like. As described above, as an offset printing apparatus when performing offset printing with high printing accuracy on a printing target, it is advantageous to use a flat printing apparatus of a type using a flat plate similar to the printing target as a printing plate. .

  Furthermore, as a printing apparatus for improving the printing accuracy of offset printing, for example, a printing apparatus whose outline is shown in FIG. 9 is conventionally proposed. This is because a printing carriage (plate table) 2 that supports a platen plate (not shown) on which a flat plate 1 is placed and a printing substrate on which a glass substrate 3 to be printed (printed material) is placed. Guide blocks (sliders) 5 and 6 are fixedly attached to the lower side of a printing carriage (printing target table) 4 that supports a panel (not shown) with the same dimensions and the same arrangement. 7) The plate carriage 2 and the printing carriage 4 are attached to 7 so as to be able to travel (reciprocate) via the respective guide blocks 5 and 6, and further, a blanket roll (blanket cylinder) so as to straddle the guide rail 7 8 is installed.

  According to the printing apparatus having such a configuration, even if the straightness of the guide rail 7 is lowered directly below the blanket roll 8 and the postures of the plate carriage 2 and the printing carriage 4 are inclined at the position, Since the carts 2 and 4 have the same inclination, the posture error between the plate 1 and the glass substrate 3 supported on the carts 2 and 4 is suppressed, and ink from the plate 1 to the blanket roll 8 is suppressed. Printing accuracy can be improved by performing the steps of transfer (resin transfer, acceptance) and re-transfer (pattern transfer, printing) of ink from the blanket roll 8 to the glass substrate 3 at the same position. (For example, see Patent Document 3).

  In general, when the offset printing process is performed as described above, in the transfer process in which the ink is transferred (received) from the plate 1 to the blanket roll 8, the plate carriage 2 that travels directly under the blanket roll 8 travels. In a state where the speed, that is, the moving speed of the plate 1 held on the plate carriage 2 and the peripheral speed of the rolling blanket roll 8 are synchronized, the rolling blanket roll 8 is placed on the plate carriage 2. The plate 1 is brought into contact with a predetermined pressure (printing pressure) applied. Further, in the retransfer process for retransferring (printing) ink from the blanket roll 8 to the glass substrate 3 to be printed, the traveling speed of the printing carriage 4 that runs directly under the blanket roll 8, that is, the printing carriage 4. In a state where the moving speed of the glass substrate 3 held above and the peripheral speed of the rolling blanket roll 8 are synchronized, the rolling blanket roll 8 is moved relative to the glass substrate 3 on the printing carriage 4. The contact is made in a state where a required printing pressure (contact pressure) is applied.

Japanese Patent No. 2797567 Japanese Patent No. 3904433 JP 2008-129362 A

  However, in the printing apparatus disclosed in Patent Document 3, the plate carriage 2 and the printing carriage 4 are supported on the guide rail 7 via the guide blocks 5 and 6 that are attached to the square portions of the respective bottom surfaces. The fact is that there are elements that cause a decrease in printing accuracy as follows.

  That is, when performing the transfer process in the offset printing process, as shown in FIGS. 10 (a), 10 (b), and 10 (c), on the plate carriage 2 that travels in a predetermined carriage traveling direction (indicated by an arrow a in the figure). When the rolling blanket roll 8 is brought into contact with the plate 1 held on the plate 1 in a state where a required printing pressure is applied, the portion of the plate 1 in contact with the blanket roll 8 is a carriage in the plate 1. It gradually moves from the front end 1a in the traveling direction to the rear end 1b in the cart traveling direction. Therefore, in the plate carriage 2, the load caused by the printing pressure applied to the plate 1 from the blanket roll 8 acts as a relative moving load on the installation location of the plate 1 in the plate carriage 2. Become.

  Similarly, when the re-transfer process in the offset printing process is performed, the blanket roll 8 that rolls with respect to the glass substrate 3 held on the printing carriage 4 that runs in the same carriage running direction as the plate carriage 2 is used. When contact is made with a required printing pressure applied, the glass substrate 3 is in contact with the blanket roll 8 from the front end portion 3a in the cart traveling direction to the rear end portion in the cart traveling direction. Gradually move to 3b. Therefore, in the printing carriage 4, the load due to the printing pressure applied to the glass substrate 3 from the blanket roll 8 acts as a relative moving load with respect to the installation location of the glass substrate 3 in the printing carriage 4. It becomes like this.

  Therefore, at the time of the transfer process or the retransfer process, in each of the carriages 2 and 4, a portion that receives a load of printing pressure from the blanket roll 8 is provided in a square portion on the bottom surface of each of the carriages 2 and 4. A load support point 9a on the front side in the cart traveling direction, in which the load is transmitted to the guide rail 7 via the two guide blocks 5 and 6 arranged on the front side in the cart traveling direction among the guide blocks 5 and 6. From the position close to the load supporting point 9b on the rear side in the cart traveling direction, where the load is transmitted to the guide rail 7 through the two guide blocks 5 and 6 arranged on the rear side in the cart traveling direction. Then, it moves relatively along the traveling direction of the carriage.

  Therefore, in each of the carts 2 and 4, the distance L1 from the portion receiving the printing pressure load from the blanket roll 8 to the load support point 9a on the front side in the cart traveling direction and the load support on the rear side in the cart traveling direction. Since the distance L2 to the point 9b changes according to the traveling of the carriages 2 and 4 as shown in FIGS. 10 (a), (b), and (c), the front side of the carriages 2 and 4 in the traveling direction of the carriages. The mode of the bending when the portion located between the load supporting points 9a and 9b on the rear side and the load of the printing pressure from the blanket roll 8 is bent downward is the It will change with the travel of 2 and 4.

  Further, the guide blocks 5 and 6 provided at the respective square portions of the carts 2 and 4 act so that the printing pressure applied from the blanket roll 8 to the carts 2 and 4 is distributed. However, since the distribution ratio of the load to the guide blocks 5 and 6 respectively disposed on the front side and the rear side in the traveling direction of the carriage changes as the carriages 2 and 4 travel, the guide blocks 5 and 6 are changed. A change occurs in the amount of strain when the 6 itself receives a load and is distorted in the vertical direction.

  Therefore, as the bending mode of each of the carts 2 and 4 changes as described above, and the amount of distortion of each of the guide blocks 5 and 6 changes, the plate 1 and glass held on the carts 2 and 4 are also changed. Since the deformation and position generated in the substrate 3 are not constant, the contact state between the plate 1 and the glass substrate 3 and the blanket roll 8 changes due to the influence, thereby reproducing the printing position in the transfer step and the retransfer step. The actual situation is that the printing performance is deteriorated due to the decrease in performance.

  However, there is a decrease in printing accuracy due to a change in the bending mode of the carriages 2 and 4 that receive the printing pressure load from the blanket roll 8 as described above and a change in the amount of distortion of the guide blocks 5 and 6. However, the printing accuracy required for the conventional printing apparatus was not particularly problematic. However, when the electrode pattern of a liquid crystal display or the like is formed on the substrate, the positional deviation of the printing position is several μm or less. In the case of performing high-precision printing that is required to be suppressed to a high level, the bending mode generated in each of the carriages 2 and 4 for holding the plate 1 and the glass substrate 3 to be printed as described above is used. It is required to be able to eliminate the decrease in reproducibility of the printing position due to the change and the change in the distortion amount generated in each of the guide blocks 5 and 6, and the decrease in the printing accuracy caused by it. There is a possibility.

  Therefore, the present invention brings a printing roll such as a blanket roll or a plate cylinder into contact with a plate or a printing target that is held on a moving table that runs under the printing roll in a state where a required printing pressure is applied. During the printing process, the amount of bending of the moving table that receives a load due to printing pressure from the printing roll via the plate or the printing target, and along the guide rail to guide the movement of the moving table The amount of distortion generated in the rail guide member used by relative movement can be made constant, thereby suppressing a decrease in the reproducibility of the printing position and improving the printing accuracy. It is an object of the present invention to provide a printing apparatus capable of performing high-precision printing as in the case of forming an electrode pattern on a required substrate by printing.

  In order to solve the above-mentioned problems, the present invention is provided correspondingly to claim 1, wherein a printing roll can be rotated and driven up and down at a required position on the gantry, and the printing roll can be driven on the gantry. In a printing apparatus in which printing is performed by bringing the printing roll into contact with a printing object or plate to be moved under a state where a required printing pressure is applied, directly below the printing roll on the gantry. A rail guide member is installed at a position spaced from the position on both sides along the moving direction of the printing object and the plate during the printing process, and the movement for holding the printing object and the plate on the upper surface side. A guide rail is attached to the bottom surface of the table so as to extend in the direction along the moving direction of the printing target and the plate during the printing process, and the guide rail on the bottom surface of the moving table is attached to each of the labels on the gantry. The guide table is slidably supported by the guide guide member, and the moving table integrated with the guide rail guides the movement of the printing object and the plate in the moving direction at the time of the printing process, and from the printing roll at the time of the printing process. It is configured such that the load of printing pressure acting on the moving table via a printing object or plate can be supported by each rail guide member on the gantry.

  Further, according to claim 2, the printing roll is provided at a required position on the gantry so that the printing roll can be rotated and driven up and down, and the printing object or the plate to be moved just below the printing roll on the gantry In the printing apparatus in which the printing roll is brought into contact in a state where a required printing pressure is applied and printing processing is performed, a rail guide member is installed at a position directly below the printing roll on the gantry, In addition, a guide rail extending in a direction along the moving direction of the printing object and the plate during the printing process is attached to the bottom surface of the moving table for holding the printing object and the plate on the upper surface side, and the guide on the bottom surface of the moving table is attached. The rail is slidably supported on a rail guide member on the gantry, and the moving table integrated with the guide rail and the moving direction of the printing target and plate during the printing process The rail guide member on the pedestal can support the movement of the print and the load of the printing pressure acting on the movable table via the printing object and the plate from the printing roll during the printing process. The configuration is as follows.

  Furthermore, in each of the above configurations, auxiliary support members for supporting the weight of the moving table are provided on both sides in the direction along the moving direction of the printing target and the plate at the time of the printing process of the rail guide member installation place on the gantry. The configuration is as follows.

According to the printing apparatus of the present invention, the following excellent effects are exhibited.
(1) A printing roll can be rotated and driven up and down at a required location on the gantry, and the printing roll is required for a printing object or plate to be moved directly under the printing roll on the gantry. In a printing apparatus in which a printing process is performed with the printing pressure being applied, both sides along the moving direction of the printing object and the plate during the printing process from a position immediately below the printing roll on the gantry The rail guide members are installed at the necessary intervals, and the moving direction of the printing object and the plate during the printing process is provided on the bottom surface of the moving table for holding the printing object and the plate on the upper surface side. A guide rail extending in a direction along the guide table is attached, and the guide rail on the bottom surface of the movable table is slidably supported on each rail guide member on the gantry. A guide for moving the printing object and plate in the moving direction during the printing process of the moving table integrated with the drawer, and a mark acting on the moving table from the printing roll via the printing object and plate during the printing process. Since the pressure load is supported by each rail guide member on the gantry, the printing roll is attached to the printing object or plate held on the moving table with the required printing pressure. When the printing process is performed with contact applied, the portion of the moving table that receives the printing pressure load from the printing roll, and the movement of the printing target or plate during the printing process on the mount Since the relative arrangement with the load support point supported by the rail guide member provided adjacent to the direction along the direction can be kept constant, The amount of bending when the portion located between each load support point is bent by receiving the load of the printing pressure can be kept constant, and the load acting on each rail guide member can be constant. The amount of strain when each rail guide member is distorted by receiving a load can be kept constant. Therefore, the contact state between the printing roll and the printing object or plate held on the upper surface side of the moving table can be prevented from changing during the printing process, so that the displacement of the printing position can be suppressed. It is possible to improve the printing accuracy by improving the reproducibility of the position.
(2) Therefore, the precision required to suppress the positional deviation of the printing position to several μm or less as in the case where the electrode pattern of the liquid crystal display is formed on a required substrate to be printed by printing. Printing can be performed with high accuracy.
(3) The printing roll is provided at a required position on the gantry so that it can be rotated and moved up and down, and the printing roll is required for a printing object or plate to be moved just below the printing roll on the gantry. In a printing apparatus in which a printing process is performed with the printing pressure applied, a rail guide member is installed at a position directly below the printing roll on the gantry, and the printing object and the plate are A guide rail extending in a direction along the moving direction of the printing object and the plate at the time of the printing process is attached to the bottom surface of the moving table for holding on the upper surface side, and the guide rail on the bottom surface of the moving table is attached to the rail on the gantry. A guide that is slidably supported by a guide member, and that moves the moving table integrated with the guide rail in the moving direction of the printing target and the plate during the printing process. The printing roll is configured to be able to support the load of the printing pressure acting on the moving table via the printing object or plate during the printing process by the rail guide member on the gantry. Thus, the same effects as in the above (1) and (2) can be obtained, and further, the number of rail guide members for guiding the guide rail in the direction along the printing object and the moving direction of the plate at the time of the printing process can be reduced. Since it can be reduced, the effect of reducing the cost can be expected.
(4) An auxiliary support member for supporting the weight of the moving table is provided on both sides in the direction along the moving direction of the printing object and the plate at the time of the printing process at the rail guide member installation location on the gantry. Accordingly, when the amount of protrusion of the portion protruding from the rail guide member of the moving table increases with the movement of the moving table, the weight of the protruding portion is supported by the auxiliary support member. Therefore, it is possible to eliminate the possibility that the deflection due to the weight of the protruding portion affects the deformation of the portion of the moving table located between the load support points by the rail guide members.

1 is a schematic plan view showing an application example to an offset printing apparatus as an embodiment of a printing apparatus of the present invention. It is a schematic side view of the printing apparatus of FIG. 1A and 1B show a state in which a printing process is performed by the printing apparatus of FIG. 1, wherein (a), (b), and (c) are steps of transferring a blanket roll to a plate held on a plate stage on the moving table while moving the moving table. It is a schematic side view which respectively shows the state of the initial stage, middle period, and latter period. FIGS. 1A and 1B show a state in which printing processing is performed by the printing apparatus of FIG. 1. It is a schematic side view which respectively shows the state of the initial stage of a process, a middle period, and a late stage. FIG. 10 is a schematic side view showing an application example of the printing apparatus of FIG. 1 as another embodiment of the present invention. FIG. 10 is a schematic plan view showing another application example of the printing apparatus of FIG. 1 as still another embodiment of the present invention. FIG. 5 shows still another embodiment of the present invention, in which (a) is a schematic side view, and (b) is a cut front view showing an enlarged installation portion of the rail guide member of (b). FIG. 10 is a schematic side view showing an application example to a printing apparatus including a plate cylinder as still another embodiment of the present invention. It is a schematic diagram which shows an example of the printing apparatus conventionally proposed in order to improve the printing precision of offset printing. This shows the transfer process for transferring ink from the plate to the blanket roll in the offset printing process. (A), (b) and (c) are carried out by bringing the blanket roll into contact with the plate held on the traveling plate carriage. It is a schematic side view which respectively shows the state of the initial stage of a transcription | transfer process, a middle period, and a late stage.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIGS. 1 to 4 (a), (b), and (c) show, as an embodiment of the printing apparatus of the present invention, a transfer in which a blanket roll 10 as a rolling printing roll is brought into contact with a plate 11 that moves immediately below the roll (FIG. An example of a case where the present invention is applied to a printing apparatus used for an offset printing process in which an acceptance process and a retransfer (printing) process in which the rolling blanket roll 10 is brought into contact with a printing object (workpiece) 12 that moves immediately below the rolling blanket roll This is shown as follows.

  For convenience of explanation, when the offset printing process is performed, the blanket roll 10 serving as a printing roll is brought into contact with the plate 11 or the printing target 12. A direction perpendicular to the axial center direction of the blanket roll 10, which is a typical moving direction, is referred to as an X-axis direction, and a direction along the axial center direction of the blanket roll 10 is referred to as a Y-axis direction (see FIGS. 6. The same applies to each embodiment in FIG.

  That is, as shown in FIGS. 1 and 2, the printing apparatus of the present invention has a linear guide block 14 as a rail guide member on the upper side of the longitudinal intermediate portion of a horizontal base 13 extending in the X-axis direction. Are arranged in parallel in the X-axis direction, for example, two sets of linear guide blocks 14 arranged at a predetermined interval in the X-axis direction are arranged in parallel in the Y-axis direction at a predetermined interval.

  Furthermore, linear guide rails 16 as two guide rails extending in the X-axis direction so as to follow the bottom surface of the moving table 15 having a required length dimension in the X-axis direction are placed on the gantry 13 in the Y-axis direction. Are arranged in parallel at intervals corresponding to the intervals between the linear guide blocks 14 arranged side by side, and the upper end surfaces of the linear guide rails 16 are attached to the bottom surface of the moving table 15, and the linear guide rails are arranged. 16 are respectively attached to two linear guide blocks 14 arranged in the X-axis direction on the pedestal 13, and the moving table 15 corresponds to each of the linear guide rails 16 attached to the bottom surface thereof. The movable table 1 can be moved along the X-axis direction on the gantry 13 along with the slide on each linear guide block 14. The load acting to allow the support to convey to the frame 13 via the linear guide blocks 14 and the respective linear guide rails 16.

  The moving table 15 is provided with a table driving device (not shown) such as a linear motor or a ball screw mechanism so that the moving table 15 can be reciprocated on the gantry 13 in the X-axis direction.

  Further, on the upper side of the moving table 15, a plate stage 17 for holding the plate 11 and a print target stage (work stage) 18 for holding the print target (work) 12 are provided in the X-axis direction. Provide an interval.

  At the intermediate portion in the longitudinal direction of the gantry 13, a required dimension is higher than the height position of the upper surface of the plate 11 and the printing target 12 held on the plate stage 17 and the printing target stage 18 provided on the moving table 15. The blanket roll 10 extending in the Y-axis direction disposed at a height position that is separated, a rotation drive device (not shown) for rolling the blanket roll 10, and a lift drive device (not shown) for raising and lowering the blanket roll 10 And a transfer mechanism unit 19 provided with the above. Thereby, the blanket roll which rolls the printing object 12 hold | maintained on the plate | board 11 and the printing target stage 18 which hold | maintained the said moving table 15 on the plate | board stage 17 provided in this moving table 15 in order to perform a printing process. In accordance with traveling in the traveling direction for moving along the moving direction of the lower end portion of the peripheral wall 10 (in the direction of arrow b in the figure; hereinafter referred to as the moving direction for the printing process), the moving table 15 is moved. When the plate 11 held on the plate stage 17 provided on the plate moves to a position immediately below the blanket roll 10 in the transfer mechanism 19, and the printing held on the printing target stage 18 provided on the moving table 15. When the object 12 moves to a position immediately below the blanket roll 10 in the transfer mechanism unit 19, the blanket roll 10 is moved upward. The blanket roll 10 is rolled at a peripheral speed synchronized with the moving speed of the plate 11 or the printing object 12 by the operation of the rotary drive device (not shown), and the rolling blanket roll 10 is moved by the operation of the lift drive device (not shown). The blanket roll 10 is lowered to a position in contact with the upper surface of the printing object 12, and the blanket roll 10 that is in contact with the upper surface of the printing object 11 or the printing object 12 is further urged downward. The printing object 12 can be contacted in a state where a required printing pressure is applied.

  When the moving amount of the moving table 15 toward one end side or the other end side in the X-axis direction increases, each linear guide block 14 provided in the intermediate portion in the longitudinal direction of the gantry 13 is used in the moving table 15. Since the protrusion amount of the portion protruding from the support portion to the one end side or the other end side in the X-axis direction becomes large, the deformation due to its own weight occurs in the protrusion, and the blanket roll is affected by the influence of the bending deformation generated in the protrusion. There is a concern that positional deviation may occur in the plate 11 on the plate stage 17 and the printing target 12 on the printing target stage 18 positioned immediately below the printing target stage 18. Therefore, as shown in FIG. 1 and FIG. 2, for example, an upper surface is provided as an auxiliary support member at a location that is separated from the installation location of each linear guide block 14 on the pedestal 13 to both ends in the X-axis direction. An auxiliary guide block 20 provided with a groove (not shown) in the X-axis direction on the side so that the lower end and both side surfaces of each linear guide rail 16 attached to the bottom surface of the moving table 15 can be guided by the groove. The linear guide rails 16 are provided corresponding to the arrangement of the linear guide rails 16 on the bottom surface of the movable table 15, and the linear guide rails 16 of the movable table 15 are slidably guided in the X-axis direction on the auxiliary guide blocks 20. In addition, each guide rail 16 can be supported from below.

  Further, as shown by a two-dot chain line in FIGS. 1 and 2, another auxiliary guide block arranged along the X-axis direction on the frame 13 together with the auxiliary guide block 20 at a required interval in the X-axis direction. 21 may be provided so that the linear guide rails 16 of the moving table 15 are slidably guided by the auxiliary guide blocks 20 and 21 arranged in the X-axis direction and supported from below. As a result, when the moving table 15 moves greatly toward one end side or the other end side in the X-axis direction, the X is removed from the support position by each linear guide block 14 in the longitudinal direction intermediate portion of the gantry 13 in the moving table 15. Since the weight of the portion that protrudes greatly in the one end side or the other end side in the axial direction can be received and supported by the auxiliary guide blocks 20 and 21 on the gantry 13 via the linear guide rails 16, In the moving table 15, it is possible to prevent the occurrence of bending deformation due to its own weight in the portion protruding from the support portion by the linear guide block 14 in the moving table 15, and from the support position by the linear guide block 14 in the moving table 15. The blanket is affected by the bending deformation of the portion protruding to one end side or the other end side in the X-axis direction. It is also available to prevent the risk of positional deviation printed 12 on the plate stage 17 Ueno plate 11 and printed stage 18 which is then positioned directly below the trawl 10 occurs.

  In the above, the plate 11 held on the plate stage 17 provided on the moving table 15 and the printing target 12 held on the printing target stage 18 move below the blanket roll 10 as the moving table 15 travels. In this case, the straightness of the movement of the plate 11 and the printing object 12 along the X-axis direction is determined by the linear guide rails on the bottom surface of the moving table 15 by the linear guide blocks 14 provided near the position immediately below the blanket roll 10. It can be secured by 16 guides. Therefore, the auxiliary guide blocks 20 and 21 are not strictly required to have straightness when the corresponding linear guide rails 16 are guided. What is necessary is just to be the structure which can support the load which acts from the movement table 15 via the guide rail 16. FIG.

  Further, the auxiliary guide blocks 20 and 21 are disposed on the gantry 13 at positions where the linear guide rails 16 attached to the moving table 15 are detached when the moving table 15 reciprocates. When it is necessary to do so, the auxiliary guide blocks 20 and 21 can receive the end portions of the linear guide rails 16 once detached from the auxiliary guide blocks 20 and 21. , 21 may be provided with a taper-shaped guide member (not shown) at the end edge facing the longitudinal center of the gantry 13 in the X-axis direction. Alternatively, both ends of the linear guide rail 16 attached to the moving table 15 are chamfered (not shown) smoothly connected to both side surfaces and the lower surface, so that the auxiliary guide blocks 20 and 21 are once detached. The end portions of the linear guide rails 16 may be smoothly received. When the auxiliary guide blocks 20 and 21 provided at the positions where the linear guide rails 16 are detached as described above are used, those having a built-in steel ball or roller for rolling circulation are used. It is assumed that the steel balls and rollers for rolling circulation do not fall off even when 16 is detached.

  Although not shown, the printing apparatus according to the present invention is within the range in which the plate 11 held on the plate stage 17 moves in accordance with the reciprocating movement of the moving table 15 in the X-axis direction, and the transfer mechanism. It is assumed that an inking device for inking the plate 11 held on the plate stage 17 is provided at a required position on the gantry 13 that does not interfere with the part 19.

  When the offset printing process is performed by the printing apparatus according to the present invention having the above-described configuration, first, the plate 11 held on the plate stage 17 by the movement of the moving table 15 is sent to the inking device (not shown) to obtain an appropriate amount. Inking is performed.

  Next, the moving table 15 that has been inked into the plate 11 is moved in the printing process moving direction (in the direction of arrow b) from the position where the plate 11 held on the plate stage 17 is directly below the blanket roll 10 in the transfer mechanism 19. ) To the position upstream of the required dimension (right side in FIGS. 3 (a), (b), and (c)).

  Next, the blanket roll 10 is rolled by the operation of a rotary drive device (not shown) so as to start traveling in the moving direction for the printing process of the moving table 15 indicated by the arrow b and to have a peripheral speed synchronized with the traveling speed. 3 is started, the blanket roll 10 is lowered by an elevator drive device (not shown), and the printing process on the inked plate 11 held on the plate stage 17 of the moving table 15 is performed as shown in FIG. When the edge on the front side in the moving direction reaches directly below the blanket roll 10, the rolling blanket roll 10 is brought into contact with the upper surface of the plate 11 in a state where a required printing pressure is applied.

  Thereafter, after the state shown in FIG. 3 (b), as shown in FIG. 3 (c), the plate 11 held on the plate stage 17 on the rear side in the printing process moving direction as the moving table 15 travels. Until the end edge reaches just below the blanket roll 10, the contact of the rolling blanket roll 10 with the required printing pressure on the upper surface of the plate 11 is continued. Thereby, the transfer (acceptance) of ink from the plate 11 to the blanket roll 10 is performed.

  During the transfer process for transferring (receiving) ink from the plate 11 to the blanket roll 10 as described above, the printing pressure applied to the plate 11 from the blanket roll 10 is applied to the plate 11 and the plate stage. The relative positions of the load supporting points by the linear guide blocks 14 that receive the load from the moving table 15 via the linear guide rails 16 are as follows. It is always kept constant without depending on the traveling along the X-axis direction.

  For this reason, the portion of the moving table 15 located between the load support points of the linear guide blocks 14 arranged at the required interval in the X-axis direction passes through the plate 11 and the plate stage 17 from the blanket roll 10. Thus, the amount of bending when receiving the load of the above-mentioned printing pressure acting from above becomes a certain amount of bending regardless of the travel of the moving table 15.

  Furthermore, the position where the load of printing pressure from the blanket roll 10 acts on the moving table 15 and the relative arrangement of the load support points of the moving table 15 by the linear guide blocks 14 are kept constant. Thus, since the magnitude of the load acting on each linear guide block 14 is kept constant, the amount of strain when each linear guide block 14 is distorted by receiving a load is kept constant. Become.

  Therefore, during the transfer process, the amount of bending of the moving table 15 that receives a load due to printing pressure from the blanket roll 10 and the straightness of the moving table 15 while receiving the load from the moving table 15, that is, the plate stage The plate 11 held on the plate stage 17 and the blanket roll 10 are held constant by maintaining the amount of distortion generated in each linear guide block 14 as a rail guide member that ensures straightness of the plate 11 held on the plate 17. Therefore, the positional deviation of the print pattern transferred (received) from the plate 11 to the blanket roll 10 can be suppressed.

  After the transfer process is performed as described above, the plate 11 on the plate stage 17 is moved by the lift table (not shown) immediately before passing the position directly below the blanket roll 10 as the moving table 15 travels. The blanket roll 10 is once raised to the standby position.

  Thereafter, as the moving table 15 travels in the printing process moving direction (arrow b direction), printing on the printing target 12 held on the printing target stage 18 of the moving table 15 as shown in FIG. When the edge on the front side in the processing movement direction reaches directly below the blanket roll 10, the rolling blanket roll 10 lowered again by the lifting / lowering drive device (not shown) is placed on the upper surface of the printing object 12. Then, contact is made in a state where a required printing pressure is applied in the same phase as when the plate 11 is contacted.

  After the contact of the blanket roll 10 with respect to the printing object 12 is started as described above, the state shown in FIG. 4 (B) is passed, and as shown in FIG. The blanket roll 10 that rolls with respect to the upper surface of the printing object 12 until the edge of the printing object 12 held on the printing object stage 18 on the rear side in the moving direction for the printing process reaches directly below the blanket roll 10. The contact is continuously performed with the required printing pressure applied. Thereby, retransfer (printing) of the ink from the blanket roll 10 to the printing object 12 is performed.

  While a retransfer process for retransferring (printing) ink from the blanket roll 10 to the printing target 12 is performed, a printing pressure load applied from the blanket roll 10 to the printing target 12 is applied to the printing target 12 and the printing target 12. The relative positions of the load supporting points by the linear guide blocks 14 that receive the load from the moving table 15 via the linear guide rails 16 and the position acting on the moving table 15 via the target stage 18 are as described above. The table 15 is always kept constant without depending on the traveling of the table 15 in the X-axis direction.

  For this reason, as in the case of the transfer step shown in FIGS. 3A, 3B, and 3C, the load support points between the linear guide blocks 14 arranged in the X-axis direction on the moving table 15 are arranged. The amount of bending when the portion located at the position is bent from the blanket roll 10 by receiving the load of the printing pressure acting from above via the printing object 12 and the printing object stage 18 becomes constant.

  Further, since the amount of strain when each linear guide block 14 is distorted by receiving a load is also kept constant, the load received by the printing pressure from the blanket roll 10 is performed during the retransfer process. Contact between the printing target 12 held on the printing target stage 18 and the blanket roll 10 is maintained by keeping the amount of deflection of the moving table 15 and the amount of distortion generated in each linear guide block 14 as a rail guide member constant. Since the state is kept constant, the positional deviation of the printing pattern that is retransferred (printed) from the blanket roll 10 to the printing object 12 can be suppressed.

  After the re-transfer process is completed, the moving table 15 is appropriately moved to remove the print target 12 after the printing process held on the print target stage 18, and then a new print target 12 is printed. After being held on the target stage 18 and thereafter, in the same manner as described above, the step of inking the plate 11 by an inking device (not shown) and the transfer step shown in FIGS. 3 (a), (b) and (c) above. Then, the re-transfer process shown in FIGS. 4A, 4B, and 4C is sequentially repeated, so that the offset printing process is sequentially performed on the new print target 12.

  Thus, according to the printing apparatus of the present invention, when performing the offset printing process, it is possible to suppress the positional deviation of the printing pattern transferred (received) from the plate 11 to the blanket roll 10 in the transfer process, Since it is possible to suppress the positional deviation of the printing pattern that is retransferred (printed) from the blanket roll 10 to the printing object 12 in the retransfer process, the reproducibility of the printing position can be improved and the printing accuracy can be improved. be able to.

  Therefore, as in the case where the electrode pattern of the liquid crystal display is formed on a required substrate to be printed 12 by printing, precision printing that requires the positional deviation of the printing position to be suppressed to several μm or less is performed. It becomes possible to carry out with high precision.

  In the above-described embodiment, when the moving amount of the moving table 15 toward the one end side or the other end side in the X-axis direction becomes large, the moving table 15 is provided at the intermediate portion in the longitudinal direction of the gantry 13. In order to prevent the possibility of bending deformation due to the weight of the portion protruding from the support portion of each linear guide block 14 toward one end side or the other end side in the X-axis direction, the linear guide block 14 of the moving table 15 is The auxiliary guide blocks 20 and 21 that receive the weight of the moving table 15 through the linear guide rail 16 are illustrated as auxiliary support members for supporting the weight of the portion protruding from the support portion, as shown in FIG. , Locations on the pedestal 13 that are separated from the installation locations of the linear guide blocks 14 to the opposite ends in the X-axis direction. Auxiliary as a support member, may be provided a support roll 22 arranged at a height in contact with the bottom surface of the movable table 15.

  Even in such a configuration, when the moving table 15 moves greatly toward one end side or the other end side in the X-axis direction, the support points by the linear guide blocks 14 in the intermediate portion in the longitudinal direction of the gantry 13 in the moving table 15. Since the weight of the part that greatly protrudes from the one end side or the other end side in the X-axis direction can be received and supported by the support rolls 22 that come into contact with the lower surface side of the moving table 15, the moving table 15 can be prevented from being deformed due to its own weight at the portion protruding from the support portion by the linear guide block 14 in the X direction, and one end in the X-axis direction from the support portion by the linear guide block 14 in the moving table 15 can be prevented. The bending deformation of the portion protruding to the side or the other end side is located just below the blanket roll 10. Edition stage 17 Ueno plate 11 and a possibility that positional deviations affect occurs for printing the print target 12 on the target stage 18 can be prevented.

  In FIG. 5, the same components as those shown in FIGS. 1 and 2 are denoted by the same reference numerals.

  Next, FIG. 6 shows an application example of the embodiment of FIGS. 1 to 4 (a), (b), and (c) as another embodiment of the present invention, which is shown in FIGS. In the same configuration as the printing apparatus, two sets of linear guide blocks 14 arranged at a required interval in the X-axis direction are arranged in parallel at a required interval in the Y-axis direction above the intermediate portion in the longitudinal direction of the gantry 13. The two linear guide rails 16 extending in the X-axis direction are attached in parallel to the bottom surface of the moving table 15, and each linear guide rail 16 attached to the moving table 15 is placed on the gantry 13. Instead of a configuration in which each of the two linear guide blocks 14 arranged in the X-axis direction is attached, an X-axis is formed above the intermediate portion in the longitudinal direction of the gantry 13 and in the center of the gantry 13 in the Y-axis direction. 2 at required intervals in the axial direction A linear guide rail 14 is installed, and a linear guide rail 16 that extends in the X-axis direction is attached to the center of the bottom surface of the moving table 15 in the Y-axis direction. 16 is attached to two linear guide blocks 14 arranged in the X-axis direction on the gantry 13, and the X-axis direction of the moving table 15 integrated with the linear guide rail 16 by the linear guide blocks 14. In addition, it is possible to ensure straightness along the line and to support the load of the moving table 15.

  On the pedestal 13, the moving table 15 is supported only on the central portion in the Y-axis direction of the moving table 15 via each linear guide block 14 and the linear guide rail 16. Although there is a concern about the inclination to the direction, as a countermeasure against this, as shown in FIG. 5, a portion located below the both ends of the moving table 15 on the gantry 13 in the Y-axis direction is arranged at a necessary interval in the X-axis direction. Similarly to the support roll 22 as the auxiliary support member shown in FIG. 4, the support roll (not shown) that contacts the lower surface of the moving table 15 is arranged and provided. It is only necessary that the movable table 15 be prevented from being inclined in the Y-axis direction by supporting the positions near both ends of the moving table 15.

  Other configurations are the same as those shown in FIGS. 1 and 2, and the same components are denoted by the same reference numerals.

  The printing apparatus of the present embodiment can obtain the same effects as those of the embodiments of FIGS. 1 to 4 (a), (b), and (c), and further ensure straightness in the rail guide direction. Since the number of linear guide blocks 14 and linear guide rails 16 having a complicated structure can be reduced, an effect of reducing the cost can be expected.

  Next, FIG. 7 (a) (b) shows another application example of the embodiment of FIGS. 1 to 4 (b), (b), and (c) as still another embodiment of the present invention. In the same configuration as the printing apparatus shown in FIGS. 1 and 2, two linear guide rails 16 are attached to the bottom surface of the moving table 15, and the linear guide rails 16 are arranged above the intermediate portion in the longitudinal direction of the gantry 13. Instead of a configuration in which two linear guide blocks 14 are provided for sliding individually along the X-axis direction, a guide rail 23 extending in the X-axis direction with a simple rectangular cross section is provided on the bottom surface of the moving table 15. Are installed in parallel, and two rail guide members 24 for individually sliding the guide rails 23 along the X-axis direction are provided above the intermediate portion in the longitudinal direction of the gantry 13. . Further, as shown in FIG. 7B, each of the rail guide members 24 has three sets of rolls that are in contact with both side surfaces and the lower surface of the guide rail 23 inside the bowl-shaped frame 25 along the X-axis direction. 26a, 26b, and 26c are configured to be rotatable.

  Other configurations are the same as those shown in FIGS. 1 and 2, and the same components are denoted by the same reference numerals.

  The printing apparatus of the present embodiment can obtain the same effects as those of the embodiments of FIGS. 1 to 4 (a), (b), and (c), and further ensure straightness in the rail guide direction. Instead of the linear guide rail 16 having a complicated cross section and the linear guide block 14 having a complicated structure, a guide rail 23 having a simple rectangular cross section and a rail guide member having a simple structure as shown in FIG. 24 can be used, the effect of reducing the cost can be expected.

  FIG. 8 shows still another embodiment of the present invention, in which a printing cylinder 27 as a rolling printing roll is brought into direct contact with a printing object 12 moving underneath, and is applied to a printing apparatus that performs printing processing. An application example is shown as follows.

  For convenience of explanation, as in the embodiment of FIGS. 1 to 4, the plate cylinder 27 when the printing cylinder 27 as a printing roll is brought into contact with the printing object 12 when performing the printing process, The direction perpendicular to the axial direction of the plate cylinder 27, which is the relative movement direction with respect to the printing object 12, is the X axis direction, and the direction along the axial direction of the plate cylinder 27 is the Y axis direction (see FIG. 1). It shall be said.

  That is, the printing apparatus of the present embodiment has the same configuration as the printing apparatus shown in FIGS. 1 and 2, the moving table 15, the plate stage 17 for holding the plate 11 on the upper side thereof, and the printing target ( And a printing target stage (work stage) 18 for holding the workpiece 12 in the X-axis direction with a required interval, and provided on the moving table 15 in the longitudinal intermediate portion of the gantry 13. A blanket roll 10 disposed at a height position separated from the height position of the upper surface of the plate 11 and the printing target 12 held on the plate stage 17 and the printing target stage 18 respectively by a required dimension, and the blanket roll 10. A transfer mechanism unit including a rotation drive device (not shown) for rolling the roller and a lift drive device (not shown) for moving the blanket roll 10 up and down 9 is replaced with a moving object table 15a having a required length dimension in the X-axis direction and a printing object stage for holding the printing object (workpiece) 12 on the upper surface of the intermediate portion in the X-axis direction. (Work stage) 18 is provided, and is required from the height position of the upper surface of the print target 12 held on the print target stage 18 provided on the moving table 15a in the middle part of the gantry 13 in the longitudinal direction. A plate cylinder 27 extending in the Y-axis direction, arranged at a standby position with a height separating away from the dimension, a rotation drive device (not shown) for rolling the plate cylinder 27, and an illustration for moving the plate cylinder 27 up and down. A transfer mechanism unit 19a provided with a lifting / lowering driving device is provided. As a result, the printing target 12 held on the printing target stage 18 of the moving table 15a as the moving table 15a travels in the predetermined moving direction for printing processing indicated by the arrow b in the drawing along the X-axis direction. Move the plate cylinder 27 at a peripheral speed synchronized with the moving speed of the printing object 12 by the operation of the rotation driving device (not shown) when moving the position immediately below the plate cylinder 27 in the transfer mechanism 19a. The rolling plate cylinder 27 is lowered to a position in contact with the upper surface of the printing object 12 by operation of the elevating drive device (not shown), and the plate cylinder 27 in contact with the upper surface of the printing object 12 is further directed downward. The plate cylinder 27 can be brought into contact with the printing object 12 in a state where a required printing pressure is applied.

  Although not shown, the printing apparatus of the present embodiment is assumed to be equipped with an inking device for inking the plate cylinder 27.

  Other configurations are the same as those shown in FIGS. 1 and 2, and the same components are denoted by the same reference numerals.

  When printing is performed by the printing apparatus according to the present embodiment having the above-described configuration, first, the plate cylinder 27 is caused to perform an appropriate amount of inking by the inking apparatus (not shown).

  Next, the moving table 15a is moved to a position where the printing object 12 held on the printing object stage 18 is upstream of the required dimension in the moving direction for the printing process from the position directly below the plate cylinder 27 in the transfer mechanism 19a. Let

  Next, the movement of the moving table 15a in the printing processing movement direction is started, and rolling of the plate cylinder 27 is started by the operation of a rotary driving device (not shown) so as to have a peripheral speed synchronized with the traveling speed. Thereafter, the plate cylinder 27 is moved down by an elevating drive device (not shown), and the front edge in the movement direction for the printing process on the printing target 12 held on the printing target stage 18 of the moving table 15a is the edge of the plate cylinder 27. When reaching the position immediately below, the inked plate cylinder 27 that rolls is brought into contact with the upper surface of the printing object 12 in a state where a required printing pressure is applied.

  After that, as the moving table 15a travels, the rear edge of the printing process 12 in the printing process moving direction held on the printing target stage 18 reaches the position immediately below the plate cylinder 27 until the rear edge of the printing process moves. The printing process by transferring ink from the plate cylinder 27 to the printing object 12 is performed by continuously making contact with the upper surface of the rolling cylinder 27 while applying the required printing pressure. become.

  While the printing process from the plate cylinder 27 to the print target 12 is performed as described above, the printing pressure load applied to the print target 12 from the plate cylinder 27 causes the print target 12 and the print target stage 18 to be applied. The relative positions of the load supporting points by the linear guide blocks 14 that receive the load from the moving table 15a through the linear guide rails 16 are determined by the position acting on the moving table 15a through the linear guide rails 16 of the moving table 15a. It is always kept constant without depending on the traveling in the axial direction.

  Therefore, also in the printing apparatus according to the present embodiment, the portion located between the load support points of the linear guide blocks 14 arranged in the X-axis direction on the moving table 15a during the printing process is the plate. The amount of bending when the printing force is applied to the printing object 12 from the cylinder 27 to be bent becomes a certain amount of bending without being related to the travel of the moving table 15a, and each linear guide block 14 described above. The amount of strain when the distorts under load is held constant.

  Therefore, since the contact state between the printing object 12 held on the printing object stage 18 of the moving table 15a and the plate cylinder 27 is kept constant, the printing pattern to be printed on the printing object 12 from the plate cylinder 27. It is possible to suppress the displacement of the position.

  After the printing process is performed as described above, the moving table 15a is appropriately moved to remove the printed object 12 after the printing process held on the printing object stage 18, and then a new printing object. 12 is held on the print target stage 18, and thereafter, the same printing process as described above may be sequentially repeated on the new print target 12.

  As described above, according to the present embodiment, when performing the printing process, it is possible to suppress the positional deviation of the printing pattern printed on the printing object 12 from the plate cylinder 27, and thus the reproducibility of the printing position is improved. Therefore, it is possible to improve the printing accuracy.

  Therefore, according to the present embodiment, the same effect as that of the embodiment of FIGS. 1 to 4 can be obtained.

  The present invention is not limited to the above embodiment, but the embodiment shown in FIGS. 1 to 4 (a), (b), (c), the embodiment shown in FIG. 5, and the embodiment shown in FIG. In the embodiment shown in FIG. 8, each set includes two sets arranged at a predetermined interval in the X-axis direction on the base 13 near the position immediately below the blanket roll 10 and the plate cylinder 27 as a printing roll. The linear guide blocks 14 are arranged in a single or plural sets in the Y-axis direction, and are attached to the bottom surfaces of the moving tables 15 and 15a by a set of two linear guide blocks 14 arranged in the X-axis direction. By guiding the two X-axis direction linear guide rails 16 in the X-axis direction, the straightness when the moving tables 15 and 15a move in the X-axis direction together with the linear guide rail 16 is ensured. However, the straightness obtained when one linear guide block 14 guides one position in the longitudinal direction of the linear guide rail 16 makes it possible to move the printing roll below the printing plate 11 and the printing object 12. When the printing process is performed by contacting the plate 11 with a required printing pressure applied thereto, if the straightness required for the movement of the plate 11 and the printing object 12 can be satisfied, the plate 11 and the printing object 12 are moved. The linear guide block 14 for guiding the linear guide rails 16 in the X-axis direction attached to the bottom surfaces of the moving tables 15 and 15a may be configured to be installed only at a position immediately below the printing roll in the gantry 13. .

  According to the printing apparatus having such a configuration, the plate 11 and the printing object 12 held on the moving tables 15 and 15a as the moving tables 15 and 15a travel are used as the blanket roll 10 and the plate cylinder 27 as printing rolls. When the blanket roll 10 and the plate cylinder 27 are brought into contact with the plate 11 and the printing object 12 in a state where a required printing pressure is applied when the printing process is performed, the blanket roll 10 and the plate cylinder are moved. 27, the printing pressure load acting on the movable tables 15 and 15a via the plate 11 and the printing object 12 is applied to the blanket roll as the printing roll via the linear guide rail 16 attached to the movable tables 15 and 15a. 10 and the linear guide block 14 installed directly under the plate cylinder 27, the moving table A location for receiving a load of the printing pressure in 5,15A, relative arrangement of the load support point by the linear guide block 14 is held constant in a state of uniform vertically. Therefore, also in this configuration, the amount of bending when the moving tables 15 and 15a are bent under the load of the printing pressure and the amount of distortion when the linear guide block 14 is distorted under the load are constant. Thus, it is possible to suppress the positional deviation of the printing pattern when performing the printing process, and it is possible to improve the reproducibility of the printing position and improve the printing accuracy. In the configuration described above, the support via the linear guide block 14 in the moving tables 15 and 15a is one place in the X-axis direction. Therefore, auxiliary support members such as the auxiliary guide block 20 shown in FIG. 2 and the support roll 22 shown in FIG. 5 are appropriately provided at a plurality of positions in the X-axis direction on the gantry 13, and these auxiliary support members. And the linear guide block 14 always supports a plurality of locations in the X-axis direction of the moving tables 15 and 15a so that the tilt of the moving tables 15 and 15a in the X-axis direction can be prevented.

  If the printing apparatus can perform the printing process by bringing the printing roll into contact with the printing object 12 or the plate 11 held on the moving tables 15 and 15a running below the printing roll from above, the printing roll can be used. The holding structure of the printing object 12 and the plate 11 on the moving tables 15 and 15a is not limited to the printing object stage 18 and the plate stage 17, and any holding structure may be adopted.

  The printing target stage 18 and the plate stage 17 may be provided with an alignment function for aligning the three axes XYθ in the horizontal plane for the printing target 12 and the plate 11 held respectively.

  If the printing apparatus is a printing apparatus that performs printing processing by bringing the printing roll into contact with the plate 11 or the printing object 12 held on the moving tables 15 and 15a running below, the printing in the transfer mechanism sections 19 and 19a is performed. You may apply to the printing apparatus which employ | adopted the thing of arbitrary types as a rotational drive apparatus, a raising / lowering drive apparatus, and an inking apparatus for a roll.

  The print target 12 may be other than the substrate.

  Of course, various modifications can be made without departing from the scope of the present invention.

10 Blanket roll (printing roll)
11 edition 12 printing object 13 mount 14 linear guide block (rail guide member)
15, 15a Moving table 16 Linear guide rail (guide rail)
20 Auxiliary guide block (auxiliary support member)
21 Auxiliary guide block (auxiliary support member)
22 Support roll (auxiliary support member)
23 Guide rail 24 Rail guide member 27 Plate cylinder (printing roll)

Claims (3)

  The printing roll is provided at a required location on the gantry so that it can be driven to rotate and can be driven up and down, and the printing roll is applied to the printing object or plate to be moved just below the printing roll on the gantry. In the printing apparatus in which the printing process is performed in the state of being applied, required from the position immediately below the printing roll on the gantry to both sides along the moving direction of the printing target and the plate during the printing process. A direction along the moving direction of the printing object and the plate during the printing process on the bottom surface of the moving table for installing the rail guide members at the spaced locations and holding the printing object and the plate on the upper surface side. And a guide rail on the bottom surface of the movable table is slidably supported on each rail guide member on the gantry. A guide for moving the printing object and the plate in the moving direction during the printing process of the moving table integrated with the printer and a mark acting on the moving table from the printing roll via the printing object and the plate during the printing process. A printing apparatus having a configuration in which a pressure load can be supported by each rail guide member on the gantry.   The printing roll is provided at a required location on the gantry so that it can be driven to rotate and can be driven up and down, and the printing roll is applied to the printing object or plate to be moved just below the printing roll on the gantry. In a printing apparatus in which a printing process is performed in a state where the printing material is applied, a rail guide member is installed at a position directly below the printing roll on the gantry, and the printing object or plate is placed on the upper surface side. A guide rail extending in a direction along the printing object and the moving direction of the plate during the printing process is attached to the bottom surface of the moving table for holding, and the guide rail on the bottom surface of the moving table is used as a rail guide member on the gantry. A sliding guide that supports the movement of the moving table integrated with the guide rail in the moving direction of the printing object and plate during the printing process, and printing It is possible to support the load of the printing pressure acting on the moving table from the printing roll through the printing object or plate during the operation by the rail guide member on the gantry. Characteristic printing device.   3. An auxiliary support member for supporting the weight of the moving table is provided on both sides in the direction along the moving direction of the printing object and the plate at the time of the printing process at the rail guide member installation location on the gantry. Printing device.

Images