WO2023090183A1 - Gravure printing device - Google Patents

Gravure printing device Download PDF

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Publication number
WO2023090183A1
WO2023090183A1 PCT/JP2022/041337 JP2022041337W WO2023090183A1 WO 2023090183 A1 WO2023090183 A1 WO 2023090183A1 JP 2022041337 W JP2022041337 W JP 2022041337W WO 2023090183 A1 WO2023090183 A1 WO 2023090183A1
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WO
WIPO (PCT)
Prior art keywords
roll
gravure
sheet member
speed
gravure roll
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PCT/JP2022/041337
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French (fr)
Japanese (ja)
Inventor
進一 幸川
肇 細田
尚弘 山田
Original Assignee
株式会社村田製作所
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Application filed by 株式会社村田製作所 filed Critical 株式会社村田製作所
Priority to CN202280061706.1A priority Critical patent/CN117957118A/en
Priority to KR1020247010539A priority patent/KR20240048564A/en
Publication of WO2023090183A1 publication Critical patent/WO2023090183A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/10—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of indefinite length, e.g. wires, hoses, tubes, yarns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses

Definitions

  • the present invention relates to a gravure printing apparatus.
  • the internal electrode pattern is printed on ceramic green sheets. Then, a mother block is manufactured by laminating ceramic green sheets on which internal electrode patterns are printed, and the mother block is divided to manufacture individual laminate chips. Furthermore, external electrodes are formed on the end faces of the laminate chip to manufacture a laminated ceramic capacitor.
  • the internal electrode pattern is printed by gravure printing by conveying a ceramic green sheet at a predetermined speed between a rotating gravure roll and a pressure roll (see Patent Document 1).
  • An object of the present invention is to provide a gravure printing apparatus that can accurately print ink in a pattern on a long sheet member.
  • a plurality of ink holding portions have a cylindrical outer peripheral surface formed in a pattern, and a long ink cartridge is conveyed on the outer peripheral surface at a predetermined speed while rotating about an axis.
  • a gravure roll for transferring the ink held in the ink holding portion to the sheet member by contacting one surface of the sheet member having a shape, and printing the ink in a pattern on the one surface of the sheet member; and a speed changing unit capable of changing the relative speed between the conveying speed of the sheet member and the peripheral speed of the gravure roll at a contact portion with the gravure roll.
  • FIG. 1 is a cross-sectional view of a laminated ceramic capacitor 100 manufactured by a gravure printing apparatus 1A;
  • FIG. 1 is a perspective view of a multilayer ceramic capacitor 100;
  • FIG. It is a figure explaining gravure printing device 1A of a 1st embodiment which prints internal electrode pattern 21 on ceramic green sheet 2. It is an example of an internal electrode pattern 21 printed on the ceramic green sheet 2 . It is a figure explaining the gravure printing apparatus 1B of 2nd Embodiment.
  • a gravure printing apparatus 1A according to the first embodiment of the present invention will be described below.
  • the gravure printing apparatus 1A is used, for example, when manufacturing a multilayer ceramic capacitor 100 as shown in FIGS. 1 and 2.
  • FIG. 1A A gravure printing apparatus 1A according to the first embodiment of the present invention will be described below.
  • the gravure printing apparatus 1A is used, for example, when manufacturing a multilayer ceramic capacitor 100 as shown in FIGS. 1 and 2.
  • FIG. 1A A gravure printing apparatus 1A according to the first embodiment of the present invention will be described below.
  • the gravure printing apparatus 1A is used, for example, when manufacturing a multilayer ceramic capacitor 100 as shown in FIGS. 1 and 2.
  • FIG. 1A A gravure printing apparatus 1A according to the first embodiment of the present invention will be described below.
  • the gravure printing apparatus 1A is used, for example, when manufacturing a multilayer ceramic capacitor 100 as shown in FIGS. 1 and 2.
  • FIG. 1 is a cross-sectional view of a laminated ceramic capacitor 100 manufactured by a gravure printing apparatus 1A according to an embodiment.
  • FIG. 2 is a perspective view of the multilayer ceramic capacitor 100.
  • FIG. A multilayer ceramic capacitor 100 includes a laminate 110 including a dielectric layer 111 made of a ceramic dielectric material and a plurality of internal electrodes 112 laminated with the dielectric layers 111 interposed therebetween. and a pair of external electrodes 113 arranged so as to be electrically connected to the internal electrodes 112 alternately drawn out from the pair of end faces 110a.
  • the multilayer ceramic capacitor 100 is usually manufactured by laminating ceramic green sheets 2 having internal electrode patterns 21 printed thereon, which will be described later, to produce a mother block. After dividing the mother block into individual laminate chips, external electrodes 113 are formed. , and the process of plating the external electrodes 113, and the like.
  • FIG. 3 is a diagram illustrating a gravure printing apparatus 1A of the first embodiment that prints internal electrode patterns 21 on ceramic green sheets 2. As shown in FIG.
  • the ceramic green sheet 2 is a long sheet member obtained by forming a ceramic slurry containing ceramic powder, a binder and a solvent into a sheet on a carrier film using a die coater, gravure coater, micro gravure coater or the like.
  • the gravure printing apparatus 1A includes a supply roll 3 arranged on the upstream side in the conveying direction of the ceramic green sheet 2 and a take-up roll 4 arranged on the downstream side.
  • a tension adjustment unit 5, a tension measurement unit 6, a gravure printing machine 7, a drying oven 8, and a pitch detection unit 9 are arranged between the supply roll 3 and the take-up roll 4.
  • a control unit 10 for controlling the entire gravure printing apparatus 1A.
  • the supply roll 3 is arranged at the upstream end of the gravure printing apparatus 1A, and is wound with the ceramic green sheet 2 on which the internal electrode pattern 21 is not printed.
  • Winding roll 4 The take-up roll 4 is arranged at the downstream end of the gravure printing apparatus 1A, and the ceramic green sheet 2 supplied from the supply roll 3 and having the internal electrode patterns 21 printed thereon is taken up.
  • the winding roll 4 is connected to a winding roll driving section 41 that drives the winding roll 4 to rotate.
  • the winding roll driving section 41 is also a speed changing section that can change the conveying speed of the ceramic green sheet 2 .
  • the change of the conveying speed of the ceramic green sheet 2 is not limited to the take-up roll driving section 41, and a conveying roller or the like may be separately provided in the conveying path of the ceramic green sheet 2.
  • the tension adjusting section 5 is arranged downstream of the supply roll 3 .
  • the tension adjustment unit 5 is arranged between the guide rolls 51 and 52 for changing the conveying direction of the ceramic green sheet 2, and between the guide rolls 51 and 52.
  • a dancer roll 53 for adjusting the tension of the green sheet 2 is provided.
  • the tension adjusting section 5 includes a dancer roll driving section 54 that drives the dancer rolls 53 in the vertical direction.
  • the tension adjustment unit 5 may be a pendulum-type dancer roll that adjusts the tension of the ceramic green sheet 2 by displacing it in the left-right direction, or may be a direct-acting lateral dancer roll that displaces it in the left-right direction. .
  • a tension measuring section 6 for measuring the tension of the ceramic green sheet 2 is arranged downstream of the tension adjusting section 5 .
  • the gravure printing machine 7 includes a gravure roll 71, a paste supply section 75, a doctor blade 76, a gravure roll drive section 77, a first pressure roll 72A and a second pressure roll 72B, and a pressure roll drive section 78. Prepare.
  • the gravure roll 71 is a cylindrical or columnar member rotatable about a horizontally extending axis.
  • the gravure roll 71 is formed with a plurality of recesses 73 as ink holding portions corresponding to the shape of the internal electrode pattern 21 to be transferred to the ceramic green sheet 2 on the outer peripheral surface.
  • the recesses 73 are aligned in the axial direction and the circumferential direction on the outer peripheral surface of the gravure roll 71 .
  • a conductive paste 74 as ink is stored in the paste supply section 75 .
  • a lower portion of the gravure roll 71 is immersed in a conductive paste 74 .
  • the gravure roll 71 rotates and the concave portions 73 on the outer peripheral surface are immersed in the conductive paste 74 of the paste supply portion 75 , the conductive paste 74 is held in the concave portions 73 .
  • doctor blade 76 The doctor blade 76 is arranged so as to contact the outer peripheral surface of the gravure roll 71 after the conductive paste 74 is held in the recesses 73 .
  • the doctor blade 76 is pressed against the outer peripheral surface of the gravure roll 71 to scrape off excess conductive paste 74 adhering to the outer peripheral surface of the gravure roll 71 other than the recesses 73 .
  • the gravure roll drive unit 77 can change the peripheral speed of the outer peripheral surface of the gravure roll 71 by changing the rotational speed of the gravure roll 71 .
  • a variable speed changer adjusts the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 at the contact portion between the ceramic green sheet 2 and the gravure roll 71.
  • the first pressing roll 72A and the second pressing roll 72B are arranged upstream and downstream of the gravure roll 71 in the conveying direction of the ceramic green sheet 2, respectively.
  • the first pressing roll 72A and the second pressing roll 72B press the ceramic green sheet 2 from the other side and wind it around the outer peripheral surface of the gravure roll 71 .
  • the first pressing roll 72A and the second pressing roll 72B are cylindrical or columnar members that rotate about an axis substantially parallel to the axis of the gravure roll 71 .
  • the outer peripheral surfaces of the first pressing roll 72A and the second pressing roll 72B may or may not be covered with an elastic member.
  • the elastic member is made of a rubber member such as nitrile rubber, urethane rubber, silicone rubber, styrene rubber, ethylene rubber, or a resin material, but is not limited to this and may be made of another elastic material.
  • the pressing roll driving section 78 can change the peripheral speed of the outer peripheral surface of the first pressing roll 72A and the second pressing roll 72B by changing the rotation speed of the first pressing roll 72A and the second pressing roll 72B.
  • the gravure roll drive section 77 and the pressure roll drive section 78 can be driven separately. In other words, the first pressure roll 72A and the second pressure roll 72B can be rotated at different peripheral speeds without following the rotation of the gravure roll 71 .
  • a drying oven 8 for drying the printed internal electrode pattern 21 is provided downstream of the gravure printer 7 .
  • a pitch detector 9 for detecting the pitch of the internal electrode patterns 21 printed on the ceramic green sheets 2 is arranged on the exit side of the drying furnace 8 .
  • control unit 10 The dancer roll drive section 54 , the tension measurement section 6 , the gravure roll drive section 77 , the pressure roll drive section 78 , the pitch detection section 9 and the winding roll drive section 41 are connected to the control section 10 .
  • the control unit 10 operates the winding roll driving unit 41 to rotate the winding roll 4 in accordance with the operation of the gravure roll driving unit 77 . Then, the ceramic green sheet 2 starts to be fed out from the supply roll 3 . It should be noted that the supply roll 3 may be provided with a drive unit to let out the ceramic green sheet 2 . By suppressing the generation of tension between the take-up roll 4, the supply roll 3 and the gravure plate 71 as much as possible, it is possible to prevent distortion of printed figures.
  • the tension measuring unit 6 measures the tension of the ceramic green sheet 2 that has been let out. The measured tension value is sent to the controller 10 .
  • the ceramic green sheet 2 is transported to the gravure printing machine 7 after the tension is measured by the tension measuring unit 6 .
  • the control unit 10 drives the gravure roll 71, the first pressure roll 72A and the second pressure roll 72B via the gravure roll drive section 77 and the pressure roll drive section 78 of the gravure printing machine 7.
  • the conductive paste 74 stored in the paste supply portion 75 is held in the concave portion 73 of the gravure roll 71 and carried to the contact portion with the ceramic green sheet 2 .
  • the doctor blade 76 is pressed against the surface of the gravure roll 71 , and the conductive paste 74 attached to the surface of the gravure roll 71 other than the recesses 73 is scraped off by the doctor blade 76 .
  • the ceramic green sheet 2 passes over the gravure roll 71 while being conveyed. At this time, the ceramic green sheet 2 is pressed against the outer peripheral surface of the gravure roll 71 by the first pressure roll 72A and the second pressure roll 72B, and the conductive paste 74 filled in the concave portions 73 of the gravure roll 71 is a ceramic.
  • the internal electrode pattern 21 is printed on the ceramic green sheet 2 by being transferred to the green sheet 2 .
  • the internal electrode pattern 21 printed on the ceramic green sheet 2 is dried in the drying oven 8.
  • the pitch detection unit 9 detects the conveying direction pitch PX and the width direction pitch PY of the internal electrode patterns 21 formed on the ceramic green sheets 2 .
  • FIG. 4 shows an example of the internal electrode pattern 21 printed on the ceramic green sheet 2. As shown in FIG. The arrow in the drawing indicates the direction in which the ceramic green sheet 2 is conveyed.
  • FIG. 4 shows the pitch PX in the transport direction and the pitch PY in the width direction of the internal electrode patterns 21 .
  • a plurality of positioning marks printed in the transport direction and the width direction may be arranged, and the pitches PX and PY may be represented by the positioning marks.
  • the values of the conveying direction pitch PX and the width direction pitch PY of the internal electrode patterns 21 detected by the pitch detection unit 9 are sent to the control unit 10 .
  • a monitor or the like may be installed in the control section 10 so that the operator can measure the pitch PX and the pitch PY in the width direction from an image.
  • the ceramic green sheet 2 is wound around the winding roll 55 .
  • the control unit 10 compares the sent tension value of the ceramic green sheet 2 and the conveying direction pitch PX and width direction pitch PY of the internal electrode patterns 21 with target values. Then, when the pitch PX and the pitch PY differ from the target values, the control section 10 feeds back the results, and controls the dancer roll driving section 54, the gravure roll driving section 77, the pressing roll driving section 78, and the winding roll driving section 41. make it work.
  • the control unit 10 controls the rotation speed of the gravure roll 71, that is, the peripheral speed of the outer peripheral surface of the gravure roll 71 via the gravure roll driving unit 77, to the ceramic green sheet 2.
  • the rotation speed of the gravure roll 71 that is, the peripheral speed of the outer peripheral surface of the gravure roll 71 via the gravure roll driving unit 77, to the ceramic green sheet 2.
  • the control unit 10 causes the gravure roll driving unit 77 to slow the peripheral speed of the gravure roll 71 with respect to the conveying speed of the ceramic green sheet 2, the pitch PX of the internal electrode patterns 21 in the conveying direction becomes longer. Conversely, when the control unit 10 causes the gravure roll driving unit 77 to increase the circumferential speed of the gravure roll 71 relative to the conveying speed of the ceramic green sheet 2, the pitch PX of the internal electrode patterns 21 in the conveying direction becomes shorter.
  • control unit 10 operates the winding roll driving unit 41 in accordance with the operation of the gravure roll driving unit 77 to increase the rotation speed of the winding roll 4 while keeping the peripheral speed of the gravure roll 71 constant.
  • the conveying speed of the ceramic green sheet 2 can also be changed. For example, when the conveying speed of the ceramic green sheet 2 is increased relative to the circumferential speed of the gravure roll 71, the pitch PX of the internal electrode patterns 21 in the conveying direction becomes longer. Conversely, when the conveying speed of the ceramic green sheet 2 is made slower than the circumferential speed of the gravure roll 71, the pitch PX of the internal electrode patterns 21 in the conveying direction is shortened.
  • the pitch PX of the internal electrode patterns 21 in the transport direction can be adjusted.
  • the gravure roll 71, the first pressure roll 72A and the second pressure roll 72B can be driven individually.
  • the first pressing roll 72A, the second pressing roll 72B, the take-up roll 4, and the supply roll 3 basically rotate at a constant speed to prevent distortion of the figure due to tension.
  • control section 10 can change the tension of the ceramic green sheets 2 by moving the dancer rolls 53 up and down via the dancer roll driving section 54 of the tension adjusting section 5 .
  • the dancer roll 53 when the dancer roll 53 is moved downward by the dancer roll drive unit 54, the tension of the ceramic green sheet 2 increases. As a result, the ceramic green sheets 2 extend in the conveying direction and narrow in width.
  • the ink is transferred from the concave portion 73 to the ceramic green sheet 2 that extends in the conveying direction and has a narrow width
  • the tension when the tension is released, the ink is transferred more than when printing is performed in a state where the tension is low.
  • the pitch PX in the ink transport direction is reduced, and the pitch PY in the width direction is increased.
  • the dancer roll 53 is moved upward by the dancer roll driving section 54, the tension of the ceramic green sheet 2 is lowered. Then, the ceramic green sheet 2 shrinks in the conveying direction and becomes wider.
  • the ink is transferred from the concave portion 73 to the ceramic green sheet 2 that has contracted and become wider in the conveying direction, when the tension is released, the amount of ink transferred is lower than when printing is performed with high tension.
  • the pitch PX in the conveying direction of the ink is extended, and the pitch PY in the width direction is narrowed.
  • the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 at the contact portion between the ceramic green sheet 2 and the gravure roll 71, which are sheet members, can be changed. section (gravure roll driving section 77 and winding roll driving section 41).
  • the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 can be changed by the speed changing unit (the gravure roll driving unit 77 and the winding roll driving unit 41). can be finely adjusted, and the internal electrode pattern 21 can be printed with high accuracy.
  • the tension adjusting section 5 is provided that can adjust the tension of the ceramic green sheet 2, which is a sheet member.
  • the tension of the ceramic green sheets 2 can be changed by moving the dancer rolls 53 up and down via the dancer roll driving section 54 of the tension adjusting section 5, the pitch of the internal electrode patterns 21 can be finely adjusted. 21 can be printed with high accuracy.
  • the tension when the ceramic green sheet 2 contacts the gravure roll 71 can be adjusted by changing the rotation speed of the first pressure roll 72A and the second pressure roll 72B.
  • the first pressure roll 72A and the second pressure roll 72B can also function as tension adjusters. Note that the first pressure roll 72A and the second pressure roll 72B may not be connected to the driving mechanism, and may simply rotate according to the transport speed of the winding roll.
  • the tension of the ceramic green sheets 2 can be changed, the pitch of the internal electrode patterns 21 can be finely adjusted, and the internal electrode patterns 21 can be printed with high precision.
  • FIG. 5 is a diagram illustrating a gravure printing apparatus 1B according to a second embodiment of the invention.
  • the gravure printing apparatus 1B of the second embodiment includes one pressing roll 72 instead of the first pressing roll 72A and the second pressing roll 72B in the first embodiment.
  • the pressing roll 72 is arranged to face the gravure roll 71 and sandwiches the ceramic green sheet 2 between itself and the gravure roll 71 .
  • the pressing roll 72 is a cylindrical or columnar member that rotates around an axis substantially parallel to the axis of the gravure roll 71 .
  • the outer peripheral surface of the pressing roll 72 is covered with an elastic member like the first pressing roll 72A and the second pressing roll 72B.
  • a speed changing portion capable of changing the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 at the contact portion between the ceramic green sheet 2 which is a sheet member and the gravure roll 71.
  • the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 can be changed by the speed changing unit (the gravure roll driving unit 77 and the winding roll driving unit 41). Therefore, the pitch of the internal electrode patterns 21 can be finely adjusted, and the internal electrode patterns 21 can be printed with high accuracy.
  • the tension of the ceramic green sheets 2 can be changed by moving the dancer rolls 53 up and down via the dancer roll driving section 54 of the tension adjusting section 5 . Therefore, the pitch of the internal electrode patterns 21 can be finely adjusted, and the internal electrode patterns 21 can be printed with high accuracy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

Provided is a gravure printing device capable of printing a long sheet member with ink accurately in a pattern. This gravure printing device 1A comprises: a gravure roll 71 that has a cylindrical outer circumferential surface in which a plurality of ink holding portions 73 are formed in a pattern, and that brings the outer circumferential surface into contact with one surface of a long sheet member 2 conveyed at a prescribed speed while rotating about the axis, thereby transferring the ink held by the ink holding portions 73 to the sheet member 2 and printing the one surface of the sheet member 2 with ink in a pattern; and speed change units 41, 77 that can change the relative speed between the conveyance speed of the sheet member 2 and the circumferential speed of the gravure roll 71 at the contact portion between the sheet member 2 and the gravure roll 71.

Description

グラビア印刷装置Gravure printing equipment
　本発明は、グラビア印刷装置に関する。 The present invention relates to a gravure printing apparatus.
　例えば、積層セラミックコンデンサを製造する際、セラミックグリーンシートに、内部電極パターンが印刷される。そして、内部電極パターンが印刷されたセラミックグリーンシートを積層することによりマザーブロックが製造され、そのマザーブロックを分割して個々の積層体チップが製造される。さらに、その積層体チップの端面に外部電極が形成されて、積層セラミックコンデンサが製造される。ここで、内部電極パターンは、グラビア印刷により、回転するグラビアロールと押圧ロールとの間に、所定速度でセラミックグリーンシートを搬送することにより印刷される（特許文献１参照）。 For example, when manufacturing a multilayer ceramic capacitor, internal electrode patterns are printed on ceramic green sheets. Then, a mother block is manufactured by laminating ceramic green sheets on which internal electrode patterns are printed, and the mother block is divided to manufacture individual laminate chips. Furthermore, external electrodes are formed on the end faces of the laminate chip to manufacture a laminated ceramic capacitor. Here, the internal electrode pattern is printed by gravure printing by conveying a ceramic green sheet at a predetermined speed between a rotating gravure roll and a pressure roll (see Patent Document 1).
特開２００３－２９７６６７号公報JP 2003-297667 A
　しかし、グラビア印刷によって、セラミックグリーンシート等の長尺状のシート部材に、内部電極パターン等のパターン形状を印刷する際、気温、湿度、張力によって、シート部材の状態が異なるため、パターン形状の印刷を精度良く行うことが容易ではない。 However, when a pattern shape such as an internal electrode pattern is printed on a long sheet member such as a ceramic green sheet by gravure printing, the condition of the sheet member varies depending on the temperature, humidity, and tension. is not easy to perform accurately.
　本発明は、長尺状のシート部材に対して、インクをパターン状に精度良く印刷することが可能なグラビア印刷装置を提供することを目的とする。 An object of the present invention is to provide a gravure printing apparatus that can accurately print ink in a pattern on a long sheet member.
　上記課題を解決するために、複数のインク保持部がパターン状に形成された円筒状の外周面を有し、軸線を中心として回転しつつ、該外周面を、所定速度で搬送される長尺状のシート部材の一面に接触させることにより、前記インク保持部に保持されたインクを前記シート部材に転写させ、前記シート部材の前記一面にパターン状にインクを印刷するグラビアロールと、前記シート部材と前記グラビアロールとの接触部における、前記シート部材の搬送速度と前記グラビアロールの周速との相対速度を変更可能な速度変更部と、を備える、グラビア印刷装置を提供する。 In order to solve the above-mentioned problems, a plurality of ink holding portions have a cylindrical outer peripheral surface formed in a pattern, and a long ink cartridge is conveyed on the outer peripheral surface at a predetermined speed while rotating about an axis. a gravure roll for transferring the ink held in the ink holding portion to the sheet member by contacting one surface of the sheet member having a shape, and printing the ink in a pattern on the one surface of the sheet member; and a speed changing unit capable of changing the relative speed between the conveying speed of the sheet member and the peripheral speed of the gravure roll at a contact portion with the gravure roll.
　本発明によれば、長尺状のシート部材に対して、インクをパターン状に精度良く印刷することが可能なグラビア印刷装置を提供することができる。 According to the present invention, it is possible to provide a gravure printing apparatus capable of printing ink in a pattern on a long sheet member with high precision.
グラビア印刷装置１Ａで製造される積層セラミックコンデンサ１００の断面図である。1 is a cross-sectional view of a laminated ceramic capacitor 100 manufactured by a gravure printing apparatus 1A; FIG. 積層セラミックコンデンサ１００の斜視図である。1 is a perspective view of a multilayer ceramic capacitor 100; FIG. セラミックグリーンシート２に内部電極パターン２１を印刷する第１実施形態のグラビア印刷装置１Ａを説明する図である。It is a figure explaining gravure printing device 1A of a 1st embodiment which prints internal electrode pattern 21 on ceramic green sheet 2. セラミックグリーンシート２に印刷された内部電極パターン２１の一例である。It is an example of an internal electrode pattern 21 printed on the ceramic green sheet 2 . 第２実施形態のグラビア印刷装置１Ｂを説明する図である。It is a figure explaining the gravure printing apparatus 1B of 2nd Embodiment.
（第１実施形態）
　以下、本発明の第１実施形態のグラビア印刷装置１Ａについて説明する。グラビア印刷装置１Ａは、例えば、図１及び図２に示すような、積層セラミックコンデンサ１００を製造する際に用いられる。 (First embodiment)
A gravure printing apparatus 1A according to the first embodiment of the present invention will be described below. The gravure printing apparatus 1A is used, for example, when manufacturing a multilayer ceramic capacitor 100 as shown in FIGS. 1 and 2. FIG.
　図１は、実施形態のグラビア印刷装置１Ａで製造される積層セラミックコンデンサ１００の断面図である。図２は積層セラミックコンデンサ１００の斜視図である。積層セラミックコンデンサ１００は、セラミック誘電体材料で製造された誘電体層１１１と、誘電体層１１１を介して積層された複数の内部電極１１２とを備えた積層体１１０と、積層体１１０における互いに対向する一対の端面１１０ａに交互に引き出された内部電極１１２と導通するように配置された一対の外部電極１１３と、を備える。 FIG. 1 is a cross-sectional view of a laminated ceramic capacitor 100 manufactured by a gravure printing apparatus 1A according to an embodiment. FIG. 2 is a perspective view of the multilayer ceramic capacitor 100. FIG. A multilayer ceramic capacitor 100 includes a laminate 110 including a dielectric layer 111 made of a ceramic dielectric material and a plurality of internal electrodes 112 laminated with the dielectric layers 111 interposed therebetween. and a pair of external electrodes 113 arranged so as to be electrically connected to the internal electrodes 112 alternately drawn out from the pair of end faces 110a.
　積層セラミックコンデンサ１００は、通常、後述する内部電極パターン２１が印刷されたセラミックグリーンシート２を積層してマザーブロックを作製し、マザーブロックを個々の積層体チップに分割した後、外部電極１１３の形成及び外部電極１１３へのめっき処理等の工程を経て製造される。 The multilayer ceramic capacitor 100 is usually manufactured by laminating ceramic green sheets 2 having internal electrode patterns 21 printed thereon, which will be described later, to produce a mother block. After dividing the mother block into individual laminate chips, external electrodes 113 are formed. , and the process of plating the external electrodes 113, and the like.
（グラビア印刷装置１Ａ）
　図３は、セラミックグリーンシート２に内部電極パターン２１を印刷する第１実施形態のグラビア印刷装置１Ａを説明する図である。 (Gravure printing device 1A)
FIG. 3 is a diagram illustrating a gravure printing apparatus 1A of the first embodiment that prints internal electrode patterns 21 on ceramic green sheets 2. As shown in FIG.
（セラミックグリーンシート２）
　セラミックグリーンシート２は、セラミックス粉末、バインダ及び溶剤を含むセラミックスラリーが、キャリアフィルム上にダイコータ、グラビアコータ、マイクログラビアコータ等を用いてシート状に成形された長尺状のシート部材である。 (Ceramic green sheet 2)
The ceramic green sheet 2 is a long sheet member obtained by forming a ceramic slurry containing ceramic powder, a binder and a solvent into a sheet on a carrier film using a die coater, gravure coater, micro gravure coater or the like.
（グラビア印刷装置１Ａ）
　グラビア印刷装置１Ａは、セラミックグリーンシート２の搬送方向の上流側に配置された供給ロール３と、下流側に配置された巻取ロール４とを備える。また、供給ロール３と、巻取ロール４との間には、テンション調整部５と、テンション測定部６と、グラビア印刷機７と、乾燥炉８と、ピッチ検出部９とが配置され、さらに、グラビア印刷装置１Ａ全体を制御する制御部１０とが配置されている。 (Gravure printing device 1A)
The gravure printing apparatus 1A includes a supply roll 3 arranged on the upstream side in the conveying direction of the ceramic green sheet 2 and a take-up roll 4 arranged on the downstream side. A tension adjustment unit 5, a tension measurement unit 6, a gravure printing machine 7, a drying oven 8, and a pitch detection unit 9 are arranged between the supply roll 3 and the take-up roll 4. , and a control unit 10 for controlling the entire gravure printing apparatus 1A.
（供給ロール３）
　供給ロール３は、グラビア印刷装置１Ａの上流端に配置され、内部電極パターン２１が印刷されていない状態のセラミックグリーンシート２が巻かれている。 (Supply roll 3)
The supply roll 3 is arranged at the upstream end of the gravure printing apparatus 1A, and is wound with the ceramic green sheet 2 on which the internal electrode pattern 21 is not printed.
（巻取ロール４）
　巻取ロール４は、グラビア印刷装置１Ａの下流端に配置され、供給ロール３から供給されて内部電極パターン２１が印刷された後のセラミックグリーンシート２が巻き取られる。巻取ロール４は、巻取ロール４を回転駆動する巻取ロール駆動部４１に連結されている。 (Winding roll 4)
The take-up roll 4 is arranged at the downstream end of the gravure printing apparatus 1A, and the ceramic green sheet 2 supplied from the supply roll 3 and having the internal electrode patterns 21 printed thereon is taken up. The winding roll 4 is connected to a winding roll driving section 41 that drives the winding roll 4 to rotate.
　実施形態において巻取ロール駆動部４１は、セラミックグリーンシート２の搬送速度を変更可能な速度変更部でもある。ただし、セラミックグリーンシート２の搬送速度の変更は巻取ロール駆動部４１に限定されず、セラミックグリーンシート２の搬送路に別途、搬送ローラ等を設けてもよい。 In the embodiment, the winding roll driving section 41 is also a speed changing section that can change the conveying speed of the ceramic green sheet 2 . However, the change of the conveying speed of the ceramic green sheet 2 is not limited to the take-up roll driving section 41, and a conveying roller or the like may be separately provided in the conveying path of the ceramic green sheet 2. FIG.
（テンション調整部５）
　テンション調整部５は、供給ロール３の下流に配置されている。テンション調整部５は、セラミックグリーンシート２の搬送方向を転換させるガイドロール５１及びガイドロール５２と、ガイドロール５１とガイドロール５２との間に配置され、実施形態では上下方向に変位することでセラミックグリーンシート２のテンションを調整するダンサロール５３とを備える。さらにテンション調整部５は、ダンサロール５３を上下方向に駆動するダンサロール駆動部５４を備える。なお、テンション調整部５は、左右方向に変位することでセラミックグリーンシート２のテンションを調整する振り子式のダンサロールでも良いし、左右方向に直動で変位させる直動式の横向きダンサロールでもよい。 (Tension adjustment unit 5)
The tension adjusting section 5 is arranged downstream of the supply roll 3 . The tension adjustment unit 5 is arranged between the guide rolls 51 and 52 for changing the conveying direction of the ceramic green sheet 2, and between the guide rolls 51 and 52. A dancer roll 53 for adjusting the tension of the green sheet 2 is provided. Further, the tension adjusting section 5 includes a dancer roll driving section 54 that drives the dancer rolls 53 in the vertical direction. The tension adjustment unit 5 may be a pendulum-type dancer roll that adjusts the tension of the ceramic green sheet 2 by displacing it in the left-right direction, or may be a direct-acting lateral dancer roll that displaces it in the left-right direction. .
（テンション測定部６）
　テンション調整部５の下流には、セラミックグリーンシート２のテンションを測定するテンション測定部６が配置されている。 (Tension measuring unit 6)
A tension measuring section 6 for measuring the tension of the ceramic green sheet 2 is arranged downstream of the tension adjusting section 5 .
（グラビア印刷機７）
　テンション測定部６の下流には、グラビア印刷機７が配置されている。グラビア印刷機７は、グラビアロール７１と、ペースト供給部７５と、ドクターブレード７６と、グラビアロール駆動部７７と、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂと、押圧ロール駆動部７８と、を備える。 (Gravure printing machine 7)
A gravure printing machine 7 is arranged downstream of the tension measuring section 6 . The gravure printing machine 7 includes a gravure roll 71, a paste supply section 75, a doctor blade 76, a gravure roll drive section 77, a first pressure roll 72A and a second pressure roll 72B, and a pressure roll drive section 78. Prepare.
（グラビアロール７１）
　グラビアロール７１は水平に延びる軸を中心として回転可能な円筒状又は円柱状部材である。グラビアロール７１は、外周面にセラミックグリーンシート２に転写される内部電極パターン２１の形状に対応した、インク保持部である複数の凹部７３が形成されている。凹部７３はグラビアロール７１の外周面における軸方向と周方向とに、それぞれ整列配置されている。 (Gravure roll 71)
The gravure roll 71 is a cylindrical or columnar member rotatable about a horizontally extending axis. The gravure roll 71 is formed with a plurality of recesses 73 as ink holding portions corresponding to the shape of the internal electrode pattern 21 to be transferred to the ceramic green sheet 2 on the outer peripheral surface. The recesses 73 are aligned in the axial direction and the circumferential direction on the outer peripheral surface of the gravure roll 71 .
（ペースト供給部７５）
　ペースト供給部７５には、インクとしての導電性ペースト７４が貯留されている。グラビアロール７１の下方部分は導電性ペースト７４に浸漬されている。グラビアロール７１が回転して、外周面の凹部７３がペースト供給部７５の導電性ペースト７４内に浸漬される際に、導電性ペースト７４が凹部７３に保持される。 (Paste supply unit 75)
A conductive paste 74 as ink is stored in the paste supply section 75 . A lower portion of the gravure roll 71 is immersed in a conductive paste 74 . When the gravure roll 71 rotates and the concave portions 73 on the outer peripheral surface are immersed in the conductive paste 74 of the paste supply portion 75 , the conductive paste 74 is held in the concave portions 73 .
（ドクターブレード７６）
　ドクターブレード７６は、凹部７３に導電性ペースト７４が保持された後の、グラビアロール７１の外周面に当接するように配置されている。ドクターブレード７６は、グラビアロール７１の外周面に押し当てられて、グラビアロール７１外周面における凹部７３以外の部分に付着した余分な導電性ペースト７４を掻き落とす。 (Doctor blade 76)
The doctor blade 76 is arranged so as to contact the outer peripheral surface of the gravure roll 71 after the conductive paste 74 is held in the recesses 73 . The doctor blade 76 is pressed against the outer peripheral surface of the gravure roll 71 to scrape off excess conductive paste 74 adhering to the outer peripheral surface of the gravure roll 71 other than the recesses 73 .
（グラビアロール駆動部７７）
　グラビアロール駆動部７７は、グラビアロール７１の回転速度を変えることにより、グラビアロール７１の外周面の周速を変更可能である。グラビアロール駆動部７７は、上述の巻取ロール駆動部４１とともに、セラミックグリーンシート２とグラビアロール７１との接触部における、セラミックグリーンシート２の搬送速度とグラビアロール７１の周速との相対速度を変更可能な速度変更部である。 (Gravure roll driving unit 77)
The gravure roll drive unit 77 can change the peripheral speed of the outer peripheral surface of the gravure roll 71 by changing the rotational speed of the gravure roll 71 . The gravure roll drive unit 77, along with the winding roll drive unit 41 described above, adjusts the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 at the contact portion between the ceramic green sheet 2 and the gravure roll 71. A variable speed changer.
（第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂ）
　第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂは、セラミックグリーンシート２の搬送方向において、グラビアロール７１を挟んで上流側と下流側とにそれぞれ配置されている。第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂは、セラミックグリーンシート２を他面側から押圧してグラビアロール７１の外周面に巻き付ける。
　第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂは、グラビアロール７１の軸と略平行な軸を中心として回転する円筒状又は円柱状部材である。第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂの外周面は弾性部材で覆われていてもよいし、覆われていなくてもいい。弾性部材は、ニトリルゴム、ウレタンゴム、シリコーンゴム、スチレンゴム、エチレンゴム等のゴム部材又は樹脂材で製造されているが、これに限定されず、他の弾性材料で製造されていてもよい。 (First press roll 72A and second press roll 72B)
The first pressing roll 72A and the second pressing roll 72B are arranged upstream and downstream of the gravure roll 71 in the conveying direction of the ceramic green sheet 2, respectively. The first pressing roll 72A and the second pressing roll 72B press the ceramic green sheet 2 from the other side and wind it around the outer peripheral surface of the gravure roll 71 .
The first pressing roll 72A and the second pressing roll 72B are cylindrical or columnar members that rotate about an axis substantially parallel to the axis of the gravure roll 71 . The outer peripheral surfaces of the first pressing roll 72A and the second pressing roll 72B may or may not be covered with an elastic member. The elastic member is made of a rubber member such as nitrile rubber, urethane rubber, silicone rubber, styrene rubber, ethylene rubber, or a resin material, but is not limited to this and may be made of another elastic material.
（押圧ロール駆動部７８）
　押圧ロール駆動部７８は、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂの回転速度を変えることにより、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂの外周面の周速を変更可能である。グラビアロール駆動部７７と押圧ロール駆動部７８とは、それぞれを別々に駆動可能である。すなわち、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂは、グラビアロール７１の回転に対して追従させずに、異なる周速で回転させることができる。 (Press roll driving unit 78)
The pressing roll driving section 78 can change the peripheral speed of the outer peripheral surface of the first pressing roll 72A and the second pressing roll 72B by changing the rotation speed of the first pressing roll 72A and the second pressing roll 72B. The gravure roll drive section 77 and the pressure roll drive section 78 can be driven separately. In other words, the first pressure roll 72A and the second pressure roll 72B can be rotated at different peripheral speeds without following the rotation of the gravure roll 71 .
（乾燥炉８）
　グラビア印刷機７の下流には、印刷した内部電極パターン２１を乾燥させるための乾燥炉８が設けられている。 (Drying furnace 8)
A drying oven 8 for drying the printed internal electrode pattern 21 is provided downstream of the gravure printer 7 .
（ピッチ検出部９）
　乾燥炉８の出口側には、セラミックグリーンシート２に印刷された内部電極パターン２１のピッチを検出するピッチ検出部９が配置されている。 (Pitch detector 9)
A pitch detector 9 for detecting the pitch of the internal electrode patterns 21 printed on the ceramic green sheets 2 is arranged on the exit side of the drying furnace 8 .
（制御部１０）
　ダンサロール駆動部５４、テンション測定部６、グラビアロール駆動部７７、押圧ロール駆動部７８、ピッチ検出部９、巻取ロール駆動部４１は制御部１０に接続されている。 (control unit 10)
The dancer roll drive section 54 , the tension measurement section 6 , the gravure roll drive section 77 , the pressure roll drive section 78 , the pitch detection section 9 and the winding roll drive section 41 are connected to the control section 10 .
　制御部１０は、グラビアロール駆動部７７の動作にあわせて、巻取ロール駆動部４１を作動させて巻取ロール４を回転駆動させる。そうすると、供給ロール３からセラミックグリーンシート２が繰り出され始める。なお、供給ロール３に駆動部を設けてセラミックグリーンシート２を繰り出してもよい。巻取ロール４、供給ロール３及びグラビア版７１間で出来る限りテンションの発生を抑制することで、印刷図形のゆがみが防止できる。 The control unit 10 operates the winding roll driving unit 41 to rotate the winding roll 4 in accordance with the operation of the gravure roll driving unit 77 . Then, the ceramic green sheet 2 starts to be fed out from the supply roll 3 . It should be noted that the supply roll 3 may be provided with a drive unit to let out the ceramic green sheet 2 . By suppressing the generation of tension between the take-up roll 4, the supply roll 3 and the gravure plate 71 as much as possible, it is possible to prevent distortion of printed figures.
　テンション測定部６は繰り出されたセラミックグリーンシート２のテンションを測定する。測定されたテンションの値は制御部１０に送られる。 The tension measuring unit 6 measures the tension of the ceramic green sheet 2 that has been let out. The measured tension value is sent to the controller 10 .
　セラミックグリーンシート２は、テンション測定部６によりテンションが測定された後、グラビア印刷機７に搬送される。制御部１０はグラビア印刷機７のグラビアロール駆動部７７、押圧ロール駆動部７８を介してグラビアロール７１と、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂとを駆動する。グラビア印刷機７において、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂによりセラミックグリーンシート２がグラビアロール７１側に押圧される。 The ceramic green sheet 2 is transported to the gravure printing machine 7 after the tension is measured by the tension measuring unit 6 . The control unit 10 drives the gravure roll 71, the first pressure roll 72A and the second pressure roll 72B via the gravure roll drive section 77 and the pressure roll drive section 78 of the gravure printing machine 7. FIG. In the gravure printing machine 7, the ceramic green sheet 2 is pressed toward the gravure roll 71 by the first pressure roll 72A and the second pressure roll 72B.
　グラビアロール７１が回転すると、ペースト供給部７５に蓄えられていた導電性ペースト７４は、グラビアロール７１の凹部７３内に保持されて、セラミックグリーンシート２との接触部まで運ばれる。 When the gravure roll 71 rotates, the conductive paste 74 stored in the paste supply portion 75 is held in the concave portion 73 of the gravure roll 71 and carried to the contact portion with the ceramic green sheet 2 .
　その途中において、ドクターブレード７６がグラビアロール７１の表面に押し当てられ、ドクターブレード７６によって、グラビアロール７１表面の凹部７３以外の部分に付着した導電性ペースト７４が掻き落とされる。 During this process, the doctor blade 76 is pressed against the surface of the gravure roll 71 , and the conductive paste 74 attached to the surface of the gravure roll 71 other than the recesses 73 is scraped off by the doctor blade 76 .
　セラミックグリーンシート２は、搬送されつつ、グラビアロール７１の上を通過する。このとき、セラミックグリーンシート２は、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂによってグラビアロール７１の外周面に押し当てられ、グラビアロール７１の凹部７３に充填されている導電性ペースト７４が、セラミックグリーンシート２に転写されて、セラミックグリーンシート２に内部電極パターン２１が印刷される。 The ceramic green sheet 2 passes over the gravure roll 71 while being conveyed. At this time, the ceramic green sheet 2 is pressed against the outer peripheral surface of the gravure roll 71 by the first pressure roll 72A and the second pressure roll 72B, and the conductive paste 74 filled in the concave portions 73 of the gravure roll 71 is a ceramic. The internal electrode pattern 21 is printed on the ceramic green sheet 2 by being transferred to the green sheet 2 .
　セラミックグリーンシート２に印刷された内部電極パターン２１は乾燥炉８において乾燥される。 The internal electrode pattern 21 printed on the ceramic green sheet 2 is dried in the drying oven 8.
　その後、ピッチ検出部９により、セラミックグリーンシート２上に形成された内部電極パターン２１の搬送方向のピッチＰＸ及び幅方向のピッチＰＹが検出される。図４は、セラミックグリーンシート２に印刷された内部電極パターン２１の一例である。図中矢印はセラミックグリーンシート２の搬送方向である。図４に内部電極パターン２１の搬送方向のピッチＰＸ及び幅方向のピッチＰＹを示す。なお、内部電極パターン近傍で、搬送方向及び幅方向にそれぞれ印刷された複数の位置決めマークを配置し、位置決めマークによりピッチＰＸとＰＹの代表をさせてもよい。 After that, the pitch detection unit 9 detects the conveying direction pitch PX and the width direction pitch PY of the internal electrode patterns 21 formed on the ceramic green sheets 2 . FIG. 4 shows an example of the internal electrode pattern 21 printed on the ceramic green sheet 2. As shown in FIG. The arrow in the drawing indicates the direction in which the ceramic green sheet 2 is conveyed. FIG. 4 shows the pitch PX in the transport direction and the pitch PY in the width direction of the internal electrode patterns 21 . In the vicinity of the internal electrode pattern, a plurality of positioning marks printed in the transport direction and the width direction may be arranged, and the pitches PX and PY may be represented by the positioning marks.
　ピッチ検出部９で検出された内部電極パターン２１の搬送方向のピッチＰＸ及び幅方向のピッチＰＹの値は、制御部１０に送られる。なお、制御部１０にモニター等を設置して、作業者が画像によりピッチＰＸ及び幅方向のピッチＰＹを測定するようにしてもよい。 The values of the conveying direction pitch PX and the width direction pitch PY of the internal electrode patterns 21 detected by the pitch detection unit 9 are sent to the control unit 10 . A monitor or the like may be installed in the control section 10 so that the operator can measure the pitch PX and the pitch PY in the width direction from an image.
　その後、セラミックグリーンシート２が巻取ロール５５に巻き取られる。 After that, the ceramic green sheet 2 is wound around the winding roll 55 .
　制御部１０は、送られてきたセラミックグリーンシート２のテンション値及び内部電極パターン２１の搬送方向のピッチＰＸ及び幅方向のピッチＰＹを目標値と比較する。そして制御部１０は、ピッチＰＸ及びピッチＰＹが目標値と異なる場合、その結果をフィードバックして、ダンサロール駆動部５４、グラビアロール駆動部７７、押圧ロール駆動部７８、巻取ロール駆動部４１を動作させる。 The control unit 10 compares the sent tension value of the ceramic green sheet 2 and the conveying direction pitch PX and width direction pitch PY of the internal electrode patterns 21 with target values. Then, when the pitch PX and the pitch PY differ from the target values, the control section 10 feeds back the results, and controls the dancer roll driving section 54, the gravure roll driving section 77, the pressing roll driving section 78, and the winding roll driving section 41. make it work.
（１）例えば、制御部１０は、ピッチＰＸが目標値と異なる場合、グラビアロール駆動部７７を介してグラビアロール７１の回転速度、すなわちグラビアロール７１の外周面の周速を、セラミックグリーンシート２の搬送速度に対して変更することができる。 (1) For example, when the pitch PX is different from the target value, the control unit 10 controls the rotation speed of the gravure roll 71, that is, the peripheral speed of the outer peripheral surface of the gravure roll 71 via the gravure roll driving unit 77, to the ceramic green sheet 2. can be changed for the conveying speed of
　そして、制御部１０が、グラビアロール駆動部７７によりグラビアロール７１との周速をセラミックグリーンシート２の搬送速度に対して遅くすると、内部電極パターン２１の搬送方向のピッチＰＸが長くなる。
　逆に、制御部１０が、グラビアロール駆動部７７によりグラビアロール７１の周速をセラミックグリーンシート２の搬送速度に対して速くすると、内部電極パターン２１の搬送方向のピッチＰＸが短くなる。 When the control unit 10 causes the gravure roll driving unit 77 to slow the peripheral speed of the gravure roll 71 with respect to the conveying speed of the ceramic green sheet 2, the pitch PX of the internal electrode patterns 21 in the conveying direction becomes longer.
Conversely, when the control unit 10 causes the gravure roll driving unit 77 to increase the circumferential speed of the gravure roll 71 relative to the conveying speed of the ceramic green sheet 2, the pitch PX of the internal electrode patterns 21 in the conveying direction becomes shorter.
　このようにして、グラビアロール７１との周速を、セラミックグリーンシート２の搬送速度に対して変更することで、内部電極パターン２１の搬送方向のピッチＰＸを調整することができる。 In this way, by changing the peripheral speed of the gravure roll 71 with respect to the conveying speed of the ceramic green sheet 2, the pitch PX of the internal electrode patterns 21 in the conveying direction can be adjusted.
（２）また、制御部１０は、グラビアロール７１の周速は一定のまま、グラビアロール駆動部７７の動作にあわせて、巻取ロール駆動部４１を作動させて巻取ロール４の回転速度を変更することで、セラミックグリーンシート２の搬送速度を変更することもできる。
　例えば、セラミックグリーンシート２の搬送速度をグラビアロール７１の周速に対して速くすると、内部電極パターン２１の搬送方向のピッチＰＸが長くなる。逆に、セラミックグリーンシート２の搬送速度をグラビアロール７１の周速に対して遅くすると、内部電極パターン２１の搬送方向のピッチＰＸが短くなる。 (2) Further, the control unit 10 operates the winding roll driving unit 41 in accordance with the operation of the gravure roll driving unit 77 to increase the rotation speed of the winding roll 4 while keeping the peripheral speed of the gravure roll 71 constant. By changing it, the conveying speed of the ceramic green sheet 2 can also be changed.
For example, when the conveying speed of the ceramic green sheet 2 is increased relative to the circumferential speed of the gravure roll 71, the pitch PX of the internal electrode patterns 21 in the conveying direction becomes longer. Conversely, when the conveying speed of the ceramic green sheet 2 is made slower than the circumferential speed of the gravure roll 71, the pitch PX of the internal electrode patterns 21 in the conveying direction is shortened.
　このようにして、セラミックグリーンシート２の搬送速度をグラビアロール７１の周速に対して変更することで、内部電極パターン２１の搬送方向のピッチＰＸを調整することができる。 By thus changing the transport speed of the ceramic green sheets 2 with respect to the peripheral speed of the gravure roll 71, the pitch PX of the internal electrode patterns 21 in the transport direction can be adjusted.
　なお、グラビアロール７１と、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂとは個々に駆動可能である。第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂと巻取ロール４及び供給ロール３は、基本的には等速で回転し、テンションによる図形のゆがみを防止する。 The gravure roll 71, the first pressure roll 72A and the second pressure roll 72B can be driven individually. The first pressing roll 72A, the second pressing roll 72B, the take-up roll 4, and the supply roll 3 basically rotate at a constant speed to prevent distortion of the figure due to tension.
（３）さらに、制御部１０は、テンション調整部５のダンサロール駆動部５４を介してダンサロール５３を上下動してセラミックグリーンシート２のテンションを変更することができる。 (3) Further, the control section 10 can change the tension of the ceramic green sheets 2 by moving the dancer rolls 53 up and down via the dancer roll driving section 54 of the tension adjusting section 5 .
　例えは、ダンサロール駆動部５４によりダンサロール５３を下方に移動すると、セラミックグリーンシート２のテンションが高くなる。そうすると、セラミックグリーンシート２は、搬送方向に延び、幅が狭くなる。搬送方向に延び幅が狭くなったセラミックグリーンシート２に対して凹部７３からインクが転写されると、テンションが解除されたときに、テンションが低い状態で印刷された場合に比べて、転写されたインクの搬送方向のピッチＰＸが縮み、幅方向のピッチＰＹが太くなる。 For example, when the dancer roll 53 is moved downward by the dancer roll drive unit 54, the tension of the ceramic green sheet 2 increases. As a result, the ceramic green sheets 2 extend in the conveying direction and narrow in width. When the ink is transferred from the concave portion 73 to the ceramic green sheet 2 that extends in the conveying direction and has a narrow width, when the tension is released, the ink is transferred more than when printing is performed in a state where the tension is low. The pitch PX in the ink transport direction is reduced, and the pitch PY in the width direction is increased.
　逆に、ダンサロール駆動部５４によりダンサロール５３を上方に移動すると、セラミックグリーンシート２のテンションが低くなる。そうすると、セラミックグリーンシート２は、搬送方向に縮み、幅が太くなる。搬送方向に縮み幅が太くなったセラミックグリーンシート２に対して、凹部７３からインクが転写されると、テンションが解除されたときに、テンションが高い状態で印刷された場合に比べて、転写されたインクの搬送方向のピッチＰＸが延び、幅方向のピッチＰＹが細くなる。 Conversely, when the dancer roll 53 is moved upward by the dancer roll driving section 54, the tension of the ceramic green sheet 2 is lowered. Then, the ceramic green sheet 2 shrinks in the conveying direction and becomes wider. When the ink is transferred from the concave portion 73 to the ceramic green sheet 2 that has contracted and become wider in the conveying direction, when the tension is released, the amount of ink transferred is lower than when printing is performed with high tension. The pitch PX in the conveying direction of the ink is extended, and the pitch PY in the width direction is narrowed.
　以上、本実施形態によると、シート部材であるセラミックグリーンシート２とグラビアロール７１との接触部における、セラミックグリーンシート２の搬送速度とグラビアロール７１の周速との相対速度を変更可能な速度変更部（グラビアロール駆動部７７及び巻取ロール駆動部４１）を備える。 As described above, according to the present embodiment, the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 at the contact portion between the ceramic green sheet 2 and the gravure roll 71, which are sheet members, can be changed. section (gravure roll driving section 77 and winding roll driving section 41).
　ゆえに、速度変更部（グラビアロール駆動部７７及び巻取ロール駆動部４１）によりセラミックグリーンシート２の搬送速度とグラビアロール７１の周速との相対速度を変更することができるので、内部電極パターン２１のピッチを微調整可能で、内部電極パターン２１を精度良く印刷することできる。 Therefore, the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 can be changed by the speed changing unit (the gravure roll driving unit 77 and the winding roll driving unit 41). can be finely adjusted, and the internal electrode pattern 21 can be printed with high accuracy.
　また、本実施形態によると、シート部材であるセラミックグリーンシート２のテンションを調整可能なテンション調整部５を備える。 In addition, according to this embodiment, the tension adjusting section 5 is provided that can adjust the tension of the ceramic green sheet 2, which is a sheet member.
　テンション調整部５のダンサロール駆動部５４を介してダンサロール５３を上下動してセラミックグリーンシート２のテンションを変更することができるので、内部電極パターン２１のピッチを微調整可能で、内部電極パターン２１を精度良く印刷することができる。 Since the tension of the ceramic green sheets 2 can be changed by moving the dancer rolls 53 up and down via the dancer roll driving section 54 of the tension adjusting section 5, the pitch of the internal electrode patterns 21 can be finely adjusted. 21 can be printed with high accuracy.
　さらに、第１実施形態においては第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂとの回転速度を変更することにより、セラミックグリーンシート２がグラビアロール７１と接触する際のテンションを調整することができ、第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂもテンション調整部として機能することができる。なお、第１押圧ロール７２Ａと第２押圧ロール７２Ｂは、駆動機構と連結されていなくてもよく、巻取ロールの搬送速度に合わせて回転するだけでもよい。 Furthermore, in the first embodiment, the tension when the ceramic green sheet 2 contacts the gravure roll 71 can be adjusted by changing the rotation speed of the first pressure roll 72A and the second pressure roll 72B. The first pressure roll 72A and the second pressure roll 72B can also function as tension adjusters. Note that the first pressure roll 72A and the second pressure roll 72B may not be connected to the driving mechanism, and may simply rotate according to the transport speed of the winding roll.
　これにより、セラミックグリーンシート２のテンションを変更し、内部電極パターン２１のピッチを微調整可能で、内部電極パターン２１を精度良く印刷することできる。 Thereby, the tension of the ceramic green sheets 2 can be changed, the pitch of the internal electrode patterns 21 can be finely adjusted, and the internal electrode patterns 21 can be printed with high precision.
（第２実施形態）
　次に、本発明の第２実施形態のグラビア印刷装置１Ｂについて説明する。図５は、本発明の第２実施形態のグラビア印刷装置１Ｂを説明する図である。 (Second embodiment)
Next, a gravure printing apparatus 1B according to a second embodiment of the invention will be described. FIG. 5 is a diagram illustrating a gravure printing apparatus 1B according to a second embodiment of the invention.
　第２実施形態のグラビア印刷装置１Ｂは、第１実施形態における第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂの代わりに、一つの押圧ロール７２を備える。押圧ロール７２は、グラビアロール７１と対向して配置され、グラビアロール７１との間にセラミックグリーンシート２を挟持する。押圧ロール７２は、グラビアロール７１の軸と略平行な軸を中心として回転する円筒状又は円柱状部材である。押圧ロール７２の外周面は第１押圧ロール７２Ａ及び第２押圧ロール７２Ｂと同様に弾性部材で覆われている。 The gravure printing apparatus 1B of the second embodiment includes one pressing roll 72 instead of the first pressing roll 72A and the second pressing roll 72B in the first embodiment. The pressing roll 72 is arranged to face the gravure roll 71 and sandwiches the ceramic green sheet 2 between itself and the gravure roll 71 . The pressing roll 72 is a cylindrical or columnar member that rotates around an axis substantially parallel to the axis of the gravure roll 71 . The outer peripheral surface of the pressing roll 72 is covered with an elastic member like the first pressing roll 72A and the second pressing roll 72B.
　第２実施形態においても、シート部材であるセラミックグリーンシート２とグラビアロール７１との接触部における、セラミックグリーンシート２の搬送速度とグラビアロール７１の周速との相対速度を変更可能な速度変更部（グラビアロール駆動部７７及び巻取ロール駆動部４１）を備える。 Also in the second embodiment, a speed changing portion capable of changing the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 at the contact portion between the ceramic green sheet 2 which is a sheet member and the gravure roll 71. (Gravure roll drive unit 77 and winding roll drive unit 41).
　したがって、速度変更部（グラビアロール駆動部７７及び巻取ロール駆動部４１）によりセラミックグリーンシート２の搬送速度とグラビアロール７１の周速との相対速度を変更することができる。ゆえに、内部電極パターン２１のピッチを微調整可能で、内部電極パターン２１を精度良く印刷することできる。 Therefore, the relative speed between the conveying speed of the ceramic green sheet 2 and the peripheral speed of the gravure roll 71 can be changed by the speed changing unit (the gravure roll driving unit 77 and the winding roll driving unit 41). Therefore, the pitch of the internal electrode patterns 21 can be finely adjusted, and the internal electrode patterns 21 can be printed with high accuracy.
　また、シート部材であるセラミックグリーンシート２のテンションを調整可能なテンション調整部５を備える。 It also has a tension adjusting section 5 capable of adjusting the tension of the ceramic green sheet 2, which is a sheet member.
　テンション調整部５のダンサロール駆動部５４を介してダンサロール５３を上下動してセラミックグリーンシート２のテンションを変更することができる。ゆえに、内部電極パターン２１のピッチを微調整可能で、内部電極パターン２１を精度良く印刷することできる。 The tension of the ceramic green sheets 2 can be changed by moving the dancer rolls 53 up and down via the dancer roll driving section 54 of the tension adjusting section 5 . Therefore, the pitch of the internal electrode patterns 21 can be finely adjusted, and the internal electrode patterns 21 can be printed with high accuracy.
　以上、本発明の実施形態について説明したが、本発明はこれらの実施形態に限定されるものではなく、発明の範囲内において種々の応用、変形を加えることが可能である。 Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various applications and modifications can be made within the scope of the invention.
　１Ａ，１Ｂ　　グラビア印刷装置
　２　　セラミックグリーンシート（シート部材）
　３　　供給ロール
　４　　巻取ロール
　５　　テンション調整部
　６　　テンション測定部
　７　　グラビア印刷機
　９　　ピッチ検出部
　１０　　制御部
　２１　　内部電極パターン
　４１　　巻取ロール駆動部（速度変更部）
　５１　　ガイドロール
　５２　　ガイドロール
　５３　　ダンサロール
　５４　　ダンサロール駆動部
　５５　　巻取ロール
　７１　　グラビアロール
　７２　　押圧ロール
　７２Ａ　　第１押圧ロール
　７２Ｂ　　第２押圧ロール
　７３　　凹部（インク保持部）
　７４　　導電性ペースト
　７７　　グラビアロール駆動部（速度変更部）
　７８　　押圧ロール駆動部 1A, 1B Gravure printing device 2 Ceramic green sheet (sheet member)
3 supply roll 4 winding roll 5 tension adjusting section 6 tension measuring section 7 gravure printing machine 9 pitch detecting section 10 control section 21 internal electrode pattern 41 winding roll driving section (speed changing section)
51 guide roll 52 guide roll 53 dancer roll 54 dancer roll driving section 55 take-up roll 71 gravure roll 72 pressure roll 72A first pressure roll 72B second pressure roll 73 concave portion (ink holding portion)
74 conductive paste 77 gravure roll driving unit (speed changing unit)
78 pressure roll drive

Claims (6)

  1. 　複数のインク保持部がパターン状に形成された円筒状の外周面を有し、軸線を中心として回転しつつ、該外周面を、所定速度で搬送される長尺状のシート部材の一面に接触させることにより、前記インク保持部に保持されたインクを前記シート部材に転写させ、前記シート部材の前記一面にパターン状にインクを印刷するグラビアロールと、
    　前記シート部材と前記グラビアロールとの接触部における、前記シート部材の搬送速度と前記グラビアロールの周速との相対速度を変更可能な速度変更部と、を備える、
    グラビア印刷装置。     It has a cylindrical outer peripheral surface in which a plurality of ink holding portions are formed in a pattern, and the outer peripheral surface contacts one surface of a long sheet member conveyed at a predetermined speed while rotating about an axis. a gravure roll that transfers the ink held in the ink holding portion to the sheet member by causing the ink to be printed in a pattern on the one surface of the sheet member;
    a speed changing unit capable of changing the relative speed between the conveying speed of the sheet member and the peripheral speed of the gravure roll at the contact portion between the sheet member and the gravure roll;
    Gravure printing equipment.
  2. 　前記速度変更部は、
    　前記グラビアロールの周速を変更可能である、
    請求項１に記載のグラビア印刷装置。     The speed changing unit
    The peripheral speed of the gravure roll can be changed,
    The gravure printing apparatus according to claim 1.
  3. 　前記シート部材のテンションを調整可能なテンション調整部を備える、
    請求項１又は請求項２に記載のグラビア印刷装置。     A tension adjustment unit that can adjust the tension of the sheet member,
    The gravure printing apparatus according to claim 1 or 2.
  4. 　前記テンション調整部は、ダンサロールを含む、
    請求項３に記載のグラビア印刷装置。     The tension adjustment unit includes a dancer roll,
    The gravure printing apparatus according to claim 3.
  5. 　前記グラビアロールを回転駆動するグラビアロール駆動部と、
    　前記グラビアロールとの間に前記シート部材を挟み、前記シート部材を前記グラビアロール側に押圧する押圧ロールと、
    　前記押圧ロールを、前記グラビアロールと異なる周速で回転駆動可能な押圧ロール駆動部と、を備える、
    請求項１から請求項４のいずれか１項に記載のグラビア印刷装置。     a gravure roll drive unit that drives the gravure roll to rotate;
    A pressing roll that sandwiches the sheet member between itself and the gravure roll and presses the sheet member toward the gravure roll;
    a pressing roll driving unit capable of rotationally driving the pressing roll at a peripheral speed different from that of the gravure roll;
    The gravure printing apparatus according to any one of claims 1 to 4.
  6. 　前記シート部材の搬送方向において、前記グラビアロールを挟んで上流側と下流側とにそれぞれ配置され、前記シート部材を他面側から押圧して前記グラビアロールの外周面に巻き付ける第１押圧ロール及び第２押圧ロールと、を備える、
    請求項１から請求項４のいずれか１項に記載のグラビア印刷装置。     A first pressure roll and a first pressure roll, which are arranged on the upstream side and the downstream side of the gravure roll in the conveying direction of the sheet member and press the sheet member from the other side to wind it around the outer peripheral surface of the gravure roll. 2 pressure rolls;
    The gravure printing apparatus according to any one of claims 1 to 4.
PCT/JP2022/041337 2021-11-19 2022-11-07 Gravure printing device WO2023090183A1 (en)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS6440368A (en) * 1987-08-06 1989-02-10 Kyokuto Int Printing method and device
JP2002308491A (en) * 2001-04-10 2002-10-23 Fuji Kikai Kogyo Kk Dancer roller device
JP2005288870A (en) * 2004-03-31 2005-10-20 Dainippon Printing Co Ltd Printing machine and coating device
JP2010034144A (en) * 2008-07-25 2010-02-12 Murata Mfg Co Ltd Electronic component manufacturing device and electronic component manufacturing method
US20190035553A1 (en) * 2017-07-25 2019-01-31 Samsung Electro-Mechanics Co., Ltd. Composite electronic component and board having the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003297667A (en) 2002-03-29 2003-10-17 Tdk Corp Gravure printing plate and method for manufacturing laminated electronic part

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6440368A (en) * 1987-08-06 1989-02-10 Kyokuto Int Printing method and device
JP2002308491A (en) * 2001-04-10 2002-10-23 Fuji Kikai Kogyo Kk Dancer roller device
JP2005288870A (en) * 2004-03-31 2005-10-20 Dainippon Printing Co Ltd Printing machine and coating device
JP2010034144A (en) * 2008-07-25 2010-02-12 Murata Mfg Co Ltd Electronic component manufacturing device and electronic component manufacturing method
US20190035553A1 (en) * 2017-07-25 2019-01-31 Samsung Electro-Mechanics Co., Ltd. Composite electronic component and board having the same

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