JP2005132017A - Method for positioning for additional printing and printing apparatus for additional printing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for positioning capable of easily and highly accurately performing an additional printing without performing a trial printing when the additional printing is performed by a gravure roll on a continuous printed article previously printed. <P>SOLUTION: In a positioning when the continuous printed article 3 previously printed is fed between a press contact roll 9 and a gravure roll 8 and the additional printing is performed, the method for positioning for the additional printing comprises separating the press contact roll 9 from the gravure roll 8, detecting a position of the printed article 3 in the lengthwise direction and a position of the gravure roll 8 in the rotating direction under a condition where the printed article 3 is not brought into contact with the outer peripheral face of the gravure roll 8, correcting the position of the gravure roll 8 in the rotating direction based on a relation between the position of the printed article 3 in the lengthwise direction and the position of the gravure roll 8 in the rotating direction when the additional printing is correctly performed, and then, bringing the printed article 3 into contact with the gravure roll 8 by the press contact roll 9 to start the additional printing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for aligning a gravure roll when performing reprinting on a printed matter that has been previously printed, and an apparatus for performing the reprint printing.

  Conventionally, multicolor printing using a gravure roll has been widely performed. In multi-color printing, additional printing is performed on a printed matter that has been printed first. In this case, it is necessary that the printed graphic printed at the time of reprinting is arranged in a correct positional relationship. In other words, the reprinting must be performed with high accuracy on the previously given printed figure. In view of this, various methods for positioning the gravure roll at an appropriate position with respect to the printed material have been considered.

  For example, Patent Document 1 below discloses a printing apparatus shown in FIG. Here, a plurality of printing impression cylinders 103 and 104 driven by the gear driving cylinder 102 are connected to the gear driving cylinder 102. The printing plate cylinders 105 and 106 are arranged so as to make a pair with the printing impression cylinders 103 and 104.

  Between the printing plate cylinders 105 and 106 and the printing impression cylinders 103 and 104, the printed matter that has been printed first is supplied, and reprinting is performed. A register mark is printed on the printed material when it is preprinted. A register mark detector 107 for detecting the register mark and a rotational position detector 108 for detecting the rotational position of the printing plate cylinders 105 and 106 are provided. Further, a compensator roller 109 for changing the position in the length direction of the long printed material is disposed upstream of the printing plate cylinders 105 and 106.

In the printing apparatus 101, based on the detected value of the rotational direction position of the printing plate cylinders 105, 106 detected by the rotational position detector 108 and the position of the register mark detected by the register mark detector 107, the printing plate A relative difference between the rotational position of the cylinders 105 and 106 and the longitudinal position of the register mark on the printed matter is calculated by the control unit 110. Then, the compensator roller 109 is controlled so that this relative difference becomes a value at which additional printing is correctly performed.
Japanese Patent No. 2737526

  In the method described in Patent Document 1, overprinting is started while a long printed material is conveyed, and at that stage, the compensator roller 109 is configured so that the above-described relative difference becomes a desired value. The position of was controlled. Therefore, prior to correctly performing additional printing by changing the position of the compensator roller 109, printing has already been performed on the surface of the long printed matter by the printing plate cylinders 105 and 106. That is, before the additional printing is performed with the correct positional relationship, in order to correctly set the positional relationship, printing must be performed on the printed matter. For this reason, extra printing is required until additional printing is performed with the correct positional relationship, which not only complicates the process but also wastefully consumes the printed matter.

  The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to enable additional printing to be performed at the correct position with respect to the previously printed figure without performing unnecessary printing at the time of reprinting. An object of the present invention is to provide a printing printing alignment method and a reprint printing apparatus.

  The present invention supplies a long printed material that has been previously printed between a gravure roll having a concave portion for printing on the outer peripheral surface and a pressure contact roll that is pressed against the gravure roll via the printed material. In the repositioning method, the press roll is separated from the gravure roll until immediately before the press roll is pressed to the gravure roll side through the elongated printed matter, A step of detecting a length direction position of the printed matter in a state in which the printed matter is separated from an outer peripheral surface of the gravure roll; a step of detecting a rotational direction position of the gravure roll at the time of detecting the length direction position; A correction step of correcting the rotational direction position of the gravure roll based on the relationship between the longitudinal direction position and the gravure roll rotational direction position when the overprinting is correctly performed; Following correction step, characterized by comprising the step of initiating the add printing.

  In a specific aspect of the registration method of the overprint printing according to the present invention, the pass line of the elongated printed material when the rotational direction position of the gravure roll is corrected in the correction step, and the overprint printing In consideration of the fact that the pass line of the long printed material at the time is different, the rotation direction position of the gravure roll is corrected.

  In another specific aspect of the position alignment method for reprint printing according to the present invention, alignment is performed while the long printed material is conveyed in the length direction.

  In still another specific aspect of the registration method for reprint printing according to the present invention, the transport speed of the long printed material in each step in which the positioning is performed prior to the reprint printing is the transport speed for the reprint printing. Will be slower than.

  In still another specific aspect of the registration method of the additional printing according to the present invention, each step for performing the registration in the additional printing is performed in a state where the long printed material is stopped.

  The reprint printing apparatus according to the present invention includes a gravure roll having a printing recess on an outer peripheral surface, a pressure contact roll that presses the printed material against the outer peripheral surface of the gravure roll, and a transport that transports the printed material in a length direction. And a first state in which the pressure contact roll is separated from the gravure roll, and a second state in which the pressure contact roll is in pressure contact with the outer peripheral surface of the gravure roll through the printed matter during overprint printing. In addition, position changing means for changing the position of the pressure contact roll and / or gravure roll, first detection means for detecting the length direction position of the printed matter, and the rotation direction of the gravure roll with respect to the lengthwise position of the printed matter The second detection means for detecting the position, the detected position in the length direction of the printed matter and the rotational direction position of the gravure roll, and when the overprint printing is performed correctly Based on the previously obtained relationship between the length direction position and the rotational position of the gravure roll Surimono, and a control means for correcting the rotational position of the gravure roll.

  In the position alignment method for reprint printing according to the present invention, the state in which the pressure contact roll is separated from the gravure roll until immediately before the pressure contact roll is pressed to the gravure roll side through the elongated printed material, that is, the printed material is separated from the gravure roll. The position in the length direction at the time of reprinting the printed matter in a state separated from the outer peripheral surface is detected, the position in the rotation direction of the gravure roll at the time when the position in the length direction is detected, and the above when the reprint is performed correctly Based on the relationship between the length direction position and the rotation direction position, the rotation direction position of the gravure roll is corrected. Therefore, the additional printing can be accurately performed by starting the additional printing following the correction step.

  In addition, as described above, the printed material is not pressed against the gravure roll at the time of alignment, and therefore no trial printing is performed. Therefore, since it is possible to perform alignment at the time of additional printing without performing trial printing, not only can the printing material be saved, but also the printing operation can be simplified.

  Further, in the conventional alignment method for additional printing, after performing the trial printing, the printing apparatus is temporarily stopped and the correction work is performed. Therefore, in the conventional alignment method, it is difficult to automate the printing process, whereas in the reprint printing alignment method of the present invention, it is not necessary to temporarily stop the apparatus. It is also easy to automate.

  In consideration of the fact that in the correction process, the pass line of the long printed material when correcting the rotational direction position of the gravure roll is different from the pass line of the long printed material at the time of reprint printing, When the rotation direction position is corrected, the position of the additional printing can be adjusted with higher accuracy.

  When alignment is performed while a long printed material is conveyed in the length direction, it is not necessary to stop the conveyance of the printed material, so that the workability of the reprint printing process can be improved.

  Prior to reprinting, if the conveyance speed of the long printed material in each process for alignment is slower than the conveyance speed for reprint printing, the consumption of materials such as printed material can be reduced. Can be planned.

  In the case where each process for performing alignment in reprint printing is performed in a state where the long printing unit is stopped, the position in the length direction of the printed matter can be detected with higher accuracy.

  In the reprint printing apparatus according to the present invention, in the first state in which the pressure contact roll is separated from the gravure roll by the position changing means for changing the position of the pressure contact roll and / or the gravure roll, The pressure contact roll and / or the gravure roll are moved so as to be able to take the second state of being pressed against the outer peripheral surface of the gravure roll via the printed matter. Therefore, in the first state, the first detection means detects the position in the length direction of the printed material, and the second detection means detects the rotation direction position of the gravure roll, thereby correctly adding the previously obtained information. Based on the relationship between the position in the length direction of the printed material and the rotation direction position of the gravure roll when printing is performed, the rotation direction position of the gravure roll is corrected by the control means, so that it is possible to perform additional printing without performing trial printing. Can be performed according to the alignment method of the present invention.

  Hereinafter, the present invention will be clarified by describing specific embodiments of the present invention with reference to the drawings.

(First embodiment)
With reference to FIGS. 1 to 3, an initial alignment method for reprint printing according to the first embodiment of the present invention will be described.

  FIG. 3 is a schematic configuration diagram of a reprint printing apparatus used in the present embodiment. In the reprint printing apparatus 1, a supply reel 2 is provided. The supply reel 2 is wound with a long printed material that has been printed first. The long printed material 3 is conveyed from the supply reel 2 toward the take-up reel 4 by the conveying device 5. As the transport device 5, an appropriate drive source such as a motor for rotationally driving the take-up reel 4 can be used.

  Rollers 6 a and 6 b and a compensator roller 7 are disposed downstream of the supply reel 2. By moving the position of the compensator roller 7 in the arrow X direction and the −X direction in FIG. 3, the position in the length direction of the long printed material 3 can be corrected. In other words, the compensator roller 7 is configured such that its position can be changed so that the length of the pass line of the long printed material 3 can be adjusted. Examples of the device for moving the compensator roller 7 in the X direction or the −X direction include a reciprocating drive source such as an air cylinder or a hydraulic cylinder, or a mechanism in which a rotational drive source is connected to a rack and a pinion.

  A gravure roll 8 and a pressure contact roll 9 are disposed downstream of the compensator roller 7. The press roll 9 is configured to press the printed product 3 against the outer peripheral surface of the gravure roll 8 and perform printing in accordance with the printing recess provided on the outer peripheral surface of the gravure roll 8.

  Further, the position of the pressure contact roll 9 is such that the first state in which the printed matter 3 is separated from the outer peripheral surface of the gravure roll 8 and the second state in which the printed matter 3 is in pressure contact with the gravure roll 8 can be taken. Can be changed. In this embodiment, the position of the press roll is changed so that the press roll can take the first state and the second state, but the position of the gravure roll 8 may be changed, or the press roll The positions of both 9 and the gravure roll 8 may be changed to realize the first and second states.

  A trigger mark detection sensor 10 and a camera 11 are arranged downstream of the gravure roll 8. The trigger mark detection sensor 10 is provided for detecting a trigger mark described later printed on the printed material 3. The trigger mark detection sensor 10 includes an appropriate detection unit such as an optical sensor. The trigger mark detection sensor 10 constitutes the first detection means of the present invention and is provided to detect the position in the length direction of the printed matter.

  The camera 11 is provided to detect the rotational direction position of the gravure roll 8. Therefore, the camera 11 constitutes a second detection means in the alignment method of the present invention. However, as long as the rotational direction position of the gravure roll 8 can be detected, the second detection means may be constituted by a detection means other than the camera.

  A drying furnace 12 is disposed downstream of the camera 11. The drying furnace 12 is provided to dry the printed graphic.

  Although schematically shown in FIG. 3, as shown in FIG. 1A, on the upstream side and downstream side of the gravure roll 8 and the pressure contact roll 9, rolls 13, 14 and roll 15 are respectively provided. Has been placed. Fig.1 (a) has shown the case where the press-contact roll 9 exists in a 1st state. In the first state, as shown in FIG. 1A, the pressure contact roll 9 is separated from the gravure roll 8, in other words, the long printed material 3 is in contact with the outer peripheral surface of the gravure roll 8. It shall mean no state. The case where the pressure contact roll 9 is in the second state refers to a state where the printed product 3 is pressed against the outer peripheral surface of the gravure roll 8 by the pressure contact roll 9 during printing.

  In addition, a control device 19 is provided in order to perform initial alignment during screen printing of the present embodiment. The control device 19 is electrically connected to the transport device 5, the trigger mark detection sensor 10, and the camera 11. The controller 19 starts or stops the conveyance of the printed material 3 by the conveyance device 5, and gives an electric signal to the conveyance device 5 to change the conveyance speed. Further, the control device 19 is given the position in the length direction of the printed matter 3 detected by the trigger mark detection sensor 10 and the position in the rotation direction of the gravure roll 8 detected by the camera 11. The control device 19 stores in advance the positional relationship between the position in the length direction of the printed product 3 and the position in the rotation direction of the gravure roll 8 when correct overprinting is correctly performed.

  A printing method using the reprint printing apparatus 1 and an initial alignment method for printing will be described with reference to FIGS.

  In the present embodiment, the initial positioning at the time of reprinting is performed with the press contact roll 9 positioned in the first state. That is, the printed product 3 is not brought into contact with the gravure roll 8, that is, the initial alignment is performed without performing the test printing.

  The printed matter 3 is printed with the alignment trigger mark 3a in the printing performed prior to the reprinting, that is, in the preprinting. In FIG. 1A, in order to clarify the position of the trigger mark 3a, it is illustrated as if the trigger mark 3a protrudes from the printed matter 3. As shown in FIG. 2A, it is assumed that the printed graphic printed in the first printing is a rectangular frame-shaped printed graphic 16. Then, it is assumed that a graphic printed by reprinting using the gravure roll 8 is a circular printed graphic 17. FIG. 2A is a partially cutaway plan view of a printed matter showing a virtual result of additional printing in the case where the alignment at the time of additional printing is insufficient. As shown in FIG. 2A, the circular printed graphic 17 by reprinting is arranged so as to be shifted from the center of the rectangular printed graphic 16.

  On the other hand, FIG. 2B is a partially cutaway plan view showing a case where the printed graphic 17 printed by the additional printing is located at the center of the printed graphic 16 printed by the preprinting. In FIG. 2B, the reprinting is performed accurately, so that the center of the printed figure 17 coincides with the center of the printed figure 16. That is, it is necessary to perform reprinting as shown in FIG.

  On the other hand, not only the printed figure 16 but also the trigger mark 3a is printed on the surface of the printed matter 3 at the time of preprinting. The trigger mark 3a is printed at the time of preprinting so as to have a predetermined positional relationship with the printed figure 16. Then, the trigger mark 3a is detected by the trigger mark detection sensor 10, and the position in the length direction of the printed material 3 being conveyed is detected.

  As shown in FIGS. 1A and 1B, a trigger mark 8 a is provided on the outer peripheral surface of the gravure roll 8. The trigger mark 8 a can be configured with an appropriate structure such as a recess provided on the outer surface of the gravure roll 8.

  In the initial alignment, the gravure roll 8 is rotated in the arrow direction in the state shown in FIG. 1A, and the position of the trigger mark 8a at that time is detected by the camera 11. Therefore, the rotational direction position of the gravure roll 8 is confirmed by detecting the trigger mark 8a.

  Then, in the control means 19 shown in FIG. 3, the rotation direction position of the gravure roll 8 given from the camera 11 and the length direction position of the printed material 3 obtained by detecting the trigger mark 3 a on the printed material 3 are obtained. Given. On the other hand, the control device 19 preliminarily stores the rotational direction position of the gravure roll when the reprinting is performed accurately, that is, when printing is performed as shown in FIG. The positional relationship with the position is stored. Specifically, the positional relationship between the trigger mark 8a and the trigger mark 3a when the overprinting is accurately performed is stored as the rotation angle difference of the gravure roll 8.

  FIG. 1B shows the relationship between the trigger mark 8a and the trigger mark 3a when the overprinting is accurately performed as described above. In such a positional relationship, as shown in FIG. 2B, the printed figure by the trigger mark 8a accurately overlaps the trigger mark 3a on the printed matter 3 after reprinting as shown in FIG. Therefore, as shown in FIG. 2B, the printed figure by the trigger mark 8a overlaps the trigger mark 3a.

  Now, as shown in FIG. 1A, the gravure roll trigger mark 8a is positioned on the outer peripheral surface portion forming a central angle of −θ from the line connecting the vertex 8b and the center which are in contact with the printed matter 3. And In this case, as shown in FIG. 2A, the trigger mark 3a printed by pre-printing and the printed figure 8A of the trigger mark 8a printed by additional printing are separated. FIG. 2A is a partially cutaway plan view showing the result when the reprinting is not accurate. In this embodiment, as described above, the initial alignment at the time of reprinting is a test printing. It should be pointed out that the printing result shown in FIG.

  By the way, in the state shown in FIG. 1B, that is, when the trigger mark 3 a and the trigger mark 8 a are in the correct positional relationship, the angle indicating the rotational direction position of the trigger mark 8 a of the gravure roll 8 is It is assumed that the central angle is + φ from the line connecting the vertex 8b and the center. Then, in this embodiment, the rotational direction position of the gravure roll 8 is moved by φ−θ.

  That is, as described above, if the rotational direction position of the gravure roll 8 is moved by φ−θ, as shown in FIG. 1B, the rotational direction position of the gravure roll 8 at the time of reprinting, and the printed product 3 The print figure 17 can be accurately matched to the center of the print figure 16 as shown in FIG. 2B.

  Note that when the positional deviation is corrected by correcting the rotational direction position of the gravure roll 8, the printed material 3 does not necessarily have to be transported and may be stopped. Further, the initial alignment may be performed while the printed product 3 is being conveyed. In any case, at the time of initial alignment, the press roll 9 is in the first state described above, and therefore no trial printing is performed. Therefore, in the printed matter 3, it is possible to prevent generation of unnecessary printed matter printed at a position where the printed figure at the time of reprinting is not appropriate, and to save printing material.

  In the initial alignment of the present embodiment, alignment is performed in a state where the printed product 3 is not pressed against the outer peripheral surface of the gravure roll 8. Therefore, after the above alignment is performed, the press roll 9 is brought into the second state, and the printed product 3 is pressed against the outer peripheral surface of the gravure roll 8 to perform printing. Therefore, not only the angle of φ−θ is corrected, but also the position in the length direction of the printed product 3 is shifted when the pressure roll 9 is changed from the first state to the second state. It is desirable to do. That is, since the pass line of the printed matter when the press roll 9 is in the first state and the pass line of the printed matter when in the second state are shifted, it is desirable to correct the shift amount. The amount of deviation in the length direction of the printed material 3 can be easily obtained in advance, and can be easily corrected by controlling the position of the compensator roller 7 described above.

(Second Embodiment)
FIG. 4 is a schematic configuration diagram of a reprint printing apparatus according to the second embodiment of the present invention. The reprint printing apparatus 21 of the present embodiment is used to print a conductive paste for forming an internal electrode pattern on a ceramic green sheet and a ceramic paste for eliminating a step on the production of a multilayer ceramic capacitor. More specifically, an internal electrode pattern and a step eliminating ceramic paste are first printed on a long green sheet supported by a long carrier film to obtain a composite sheet. A ceramic paste layer is further formed on the entire surface of the composite sheet. Thereafter, the second layer internal electrode pattern and the ceramic paste for eliminating the step are printed. In such a manufacturing method, the reprint printing apparatus 21 of the present embodiment is used for printing the second-layer internal electrode pattern and the step-resolving ceramic paste.

  The reprint printing apparatus 21 has a supply reel 22. From the supply reel 22, the above-described ceramic paste layer is formed on the entire surface, and the composite sheet is supplied as the printed material 23. In this printed matter 23, a ceramic green sheet is formed on a long carrier film, and an internal electrode pattern made of a conductive paste and a step-removing ceramic paste are printed on the upper surface of the ceramic green sheet, and a composite A sheet is constructed. Further, a ceramic paste layer is formed on the entire surface of the composite sheet. The ceramic paste layer formed on the entire surface may be formed by printing, or may be formed by thermocompression bonding a separately formed ceramic green sheet to the upper surface of the composite sheet.

  The reprint printing apparatus 21 of the present embodiment is a two-color printing apparatus in which first and second printing apparatuses 21A and 21B are connected in series.

  The first and second printing apparatuses 21A and 21B are configured in substantially the same manner as the reprint printing apparatus 1 of FIG. 3 shown for the first embodiment. Therefore, for the reference numbers of the respective parts of the first and second printing apparatuses 21A and 21B, numbers obtained by adding 20 and 40 to the reference numbers of the respective parts in the reprint printing apparatus 1 shown in FIG. By attaching, detailed description of each corresponding part will be omitted.

  Note that the control device passes through the first and second printing devices 21A and 21B. Therefore, the control device 39 applies not only to the first printing device 21A but also to the second printing device 21B. It is connected.

  In the present embodiment, in the reprint printing apparatus 21A, the conductive paste is first printed, and the second layer internal electrode pattern is printed. In the second reprint printing apparatus 21B, the second level difference elimination ceramic paste layer is printed. Is printed and taken up by the take-up reel 24.

  In either of the printing apparatuses 21A and 21B, the initial alignment is performed at the time of reprinting according to the present invention. This will be described more specifically.

  First, in the first and second printing apparatuses 21A and 21B, the press rolls 29 and 49 are set to the first state, and the printed matter 23 is conveyed in this state. The conveyance speed at this time is preferably lower than the normal printing speed in order to reduce material consumption, and is preferably about 10 m / min.

  Next, while the printed material 23 is being transported, trigger marks preliminarily printed on the printed material 23 are detected by the trigger mark detection sensors 30 and 50, respectively. The trigger mark is a trigger mark printed on the composite sheet or a trigger mark provided on the upper surface of the ceramic paste layer provided on the composite sheet at the time of preprinting. Even when the trigger mark is directly provided on the upper surface of the composite sheet, if the ceramic paste layer provided on the composite sheet is thin, The trigger mark detection sensors 30 and 50 can detect the trigger mark.

  Next, the rotational direction position of the gravure roll 28 of the first printing device 21A and the rotational direction position of the gravure roll 48 of the second printing device 21B when the trigger marks are detected by the trigger mark detection sensors 30 and 50, respectively. Detection is performed using cameras 31 and 51 as second detection means. In this manner, the detected values of the rotational direction positions of the gravure rolls 28 and 48 are obtained as the angles θ1 and θ2. These angles θ1 and θ2 correspond to the angle θ shown in FIG.

  On the other hand, in the control device 39, the gravure rolls 28, 48 when the trigger mark is detected when the position in the length direction of the printed matter 23 and the rotational direction position of the gravure rolls 28, 48 are matched in advance. The angles φ1 and φ2 which are rotational direction positions are stored. The angles φ1 and φ2 correspond to the angle φ in the first embodiment.

  Therefore, also in the present embodiment, the gravure rolls 28 and 48 are moved by the angles φ1 to θ1 and φ2 to θ2, respectively, so that the printing device 21A is accurately applied to the printed matter 23 as in the case of the first embodiment. , 21B can be overprinted. However, in this embodiment as well, the initial alignment is performed in the first state with the press rolls 29 and 49, and therefore, the displacement in the length direction of the printed matter 23 when moved to the second state is further increased by the compensator roller 27. , 47 need to be corrected.

  In this way, initial alignment when performing two-color reprinting on the printed matter 23 is performed. Also in the present embodiment, the initial alignment can be performed without performing a test print.

  When reprinting, the press rolls 29 and 49 are set in the second state, the printed matter 23 is conveyed at a normal printing speed, and reprinting is performed.

  In the present embodiment, the second-layer internal electrode pattern and the step-resolving ceramic paste are printed in this way, and the printed matter 23 is taken up on the take-up reel 24. The printed matter 23 having the two dielectric element portions obtained in this way is peeled from the carrier film, and a plurality of sheets are further laminated. In this way, a laminate is obtained. And the laminated body 61 shown in FIG. 5 is obtained by pressing and cutting the obtained laminated body in the thickness direction. The obtained multilayer body 61 is fired, and external electrodes are formed on the obtained sintered body, whereby the multilayer ceramic capacitor shown in FIG. 6 is obtained. In FIG. 6, the multilayer ceramic capacitor 62 includes a ceramic sintered body 63 and external electrodes 64 and 65 formed on the outer surface of the ceramic sintered body 63. A plurality of internal electrodes 66 are formed in the ceramic sintered body 63.

  The reprint printing method according to the present invention is preferably used for the above-described electronic component manufacturing method, but can be widely used for reprint printing in other applications using a gravure roll.

(A) And (b) is a figure for demonstrating the position alignment method of the reprint printing of one Embodiment of this invention, (a) is the state before position alignment, (b) is position alignment. Each schematic block diagram for demonstrating the completed state. (A) And (b) is each partial notch top view which shows the printed figure before and after position alignment in the position alignment of the reprint printing of one Embodiment of this invention. 1 is a schematic configuration diagram of a reprint printing apparatus according to a first embodiment of the present invention. The schematic block diagram of the reprint printing apparatus of the 2nd Embodiment of this invention. Front sectional drawing which shows the laminated body of each multilayer ceramic capacitor unit comprised using the laminated body obtained by 2nd Embodiment. FIG. 6 is a front sectional view showing a multilayer ceramic capacitor obtained using the multilayer body shown in FIG. 5. 1 is a schematic configuration diagram showing a conventional printing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Additional printing apparatus 2 ... Supply reel 3 ... Printed material 3a ... Trigger mark 4 ... Take-up reel 5 ... Conveyor device 6a, 6b ... Roller 7 ... Compensator roller 8 ... Gravure roll 8a ... Trigger mark 8A ... Trigger mark printing figure 9 DESCRIPTION OF SYMBOLS ... Pressing roll 10 ... Trigger mark detection sensor 11 ... Camera 12 ... Drying furnace 13-15 ... Roll 16 ... Print figure 17 ... Print figure 21 ... Reprint printer 22 ... Supply reel 23 ... Print 24 ... Take-up reel 25,26 ... Roll 27 ... Compensator roller 28 ... Gravure roll 29 ... Pressure contact roll 30 ... Trigger mark detection sensor 31 ... Camera 32 ... Drying furnace 45, 46 ... Roll 47 ... Compensator roller 48 ... Gravure roll 49 ... Pressure contact roll 50 ... Trigger mark detection sensor 51 ... Camera 52 ... Drying oven 6 ... laminate 62 ... laminated ceramic capacitor 63 ... sintered 64,65 ... external electrode 66 ... internal electrode

Claims (6)

A long printed matter that has been printed first is supplied between a gravure roll having a printing recess on the outer peripheral surface and a pressure contact roll that is pressed against the gravure roll via the printed matter, and reprinted. A positioning method when performing
The press contact roll is separated from the gravure roll and the print product is separated from the outer peripheral surface of the gravure roll until immediately before the press contact roll is press-contacted to the gravure roll side via the elongated printed product. Detecting the longitudinal position;
Detecting the rotational direction position of the gravure roll at the time of detecting the length direction position;
A correction step of correcting the rotational direction position of the gravure roll based on the relationship between the position in the length direction and the rotational direction position of the gravure roll when the printed matter is correctly overprinted,
And a step of starting a supplementary printing subsequent to the correcting step.   In consideration of the fact that the pass line of the long printed material at the time of correcting the rotational position of the gravure roll in the correcting step is different from the pass line of the long printed material at the time of the additional printing. The position adjustment method of reprint printing according to claim 1, wherein the rotational position of the gravure roll is corrected.   The position alignment method of reprint printing of Claim 1 or 2 which performs position alignment, conveying the said elongate printed matter in the length direction.   The alignment method of reprint printing according to claim 3, wherein a conveying speed of a long printed material in each step in which alignment is performed prior to reprinting is made slower than a conveying speed in reprint printing.   The alignment method of reprint printing according to claim 1 or 2, wherein each step for performing alignment during reprint printing is performed in a state where a long printed material is stopped. A reprint printing apparatus for performing reprinting while conveying a long printed material that has been previously printed in the length direction,
A gravure roll provided with a recess for printing on the outer peripheral surface;
A pressure roll that presses the printed matter against the outer peripheral surface of the gravure roll;
Conveying means for conveying the printed matter in the length direction;
The first state in which the pressure contact roll is separated from the gravure roll, and the second state in which the pressure contact roll is in pressure contact with the outer peripheral surface of the gravure roll through the printed matter at the time of reprint printing, can be taken. Position changing means for changing the position of the pressure contact roll and / or the gravure roll;
First detection means for detecting a longitudinal position of the printed matter;
Second detection means for detecting a rotational direction position of the gravure roll with respect to a longitudinal direction position of the printed matter;
Based on the previously determined relationship between the detected length direction position of the printed matter and the rotation direction position of the gravure roll, and the length direction position of the printed matter and the rotation direction position of the gravure roll when correct overprinting is performed correctly, A reprint printing apparatus comprising control means for correcting the rotational direction position of the gravure roll.

Images