JP2019206129A - Printing device - Google Patents

Printing device Download PDF

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Publication number
JP2019206129A
JP2019206129A JP2018103005A JP2018103005A JP2019206129A JP 2019206129 A JP2019206129 A JP 2019206129A JP 2018103005 A JP2018103005 A JP 2018103005A JP 2018103005 A JP2018103005 A JP 2018103005A JP 2019206129 A JP2019206129 A JP 2019206129A
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Japan
Prior art keywords
mandrel
transfer
printing apparatus
transfer member
wheel
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Pending
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JP2018103005A
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Japanese (ja)
Inventor
宏紀 尾関
Hiroki Ozeki
宏紀 尾関
幸司 山田
Koji Yamada
幸司 山田
裕次 岩切
Yuji Iwakiri
裕次 岩切
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Toyo Seikan Group Holdings Ltd
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Toyo Seikan Kaisha Ltd
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Priority to JP2018103005A priority Critical patent/JP2019206129A/en
Priority to PCT/JP2019/019868 priority patent/WO2019230472A1/en
Publication of JP2019206129A publication Critical patent/JP2019206129A/en
Pending legal-status Critical Current

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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
    • 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
    • B41F17/14—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 finite length
    • B41F17/20—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 finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B41F17/22—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 finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet

Abstract

To provide a printing device that can make both optimization of an ink transfer property to a processing work-piece from a transfer member and wetting/spreading of ink and the like and optimization of rotation driving force to the processing work-piece and durability of the transfer member and the like compatible, and can maintain high printing quality even at high processing speed to achieve high production efficiency.SOLUTION: The printing device comprises a transfer member 111, self-rotatable mandrels 120 that carry a cylindrical processing work-piece and a conveying unit that moves the plurality of mandrels 120 along a conveyance passage. An auxiliary driving member 114 which rotationally drives the cylindrical processing work-piece at least in a transfer station is arranged to contact the mandrels 120 or a non-printing area of a trunk part of the processing work-piece.SELECTED DRAWING: Figure 2

Description

本発明は、表面にインク画像を形成する画像領域を有する転写部材と、筒形状の被処理物を担持する複数の自転可能なマンドレルを搬送経路に沿って移動させる搬送ユニットを備え、転写部材の画像領域に形成されたインク画像を、被処理物の胴部の外周面に転写する転写ステーションを有する印刷装置に関する。   The present invention comprises a transfer member having an image area on the surface for forming an ink image, and a transport unit that moves a plurality of mandrels capable of rotating on a cylindrical shape along a transport path. The present invention relates to a printing apparatus having a transfer station for transferring an ink image formed in an image area to an outer peripheral surface of a body portion of a workpiece.

従来、アルミニウムやスチール等の金属からなるシームレス缶などの筒形状の被処理物の胴部への曲面印刷においては、刷版を使用する版式印刷と、版を使用しないインクジェット印刷あるいは電子写真印刷などを用いる方式が公知である。
版式印刷としては、例えば、各色インカーのプレートシリンダに樹脂凸版を備え、樹脂凸版からの各色インクをブランケットに転写し、ブランケットから自転可能なマンドレル被処理物に転写することにより画像を形成するドライオフセット印刷などが挙げられる。 Conventionally, in curved surface printing on the body of cylindrical objects such as seamless cans made of metal such as aluminum and steel, plate-type printing using a printing plate and inkjet printing or electrophotographic printing without using a plate A method of using is known.
For plate printing, for example, each color inker plate cylinder is equipped with a resin relief plate, each color ink from the resin relief plate is transferred to a blanket, and then transferred to a mandrel processed object that can be rotated from the blanket to form an image. For example, printing.

特表２０１６−５１１１７５号公報JP-T-2006-511175

例えば、特許文献１で公知の印刷装置では、表面にインク画像を形成する画像領域を有する転写部材であるブランケットホイールあるいはブランケットベルトと、筒形状の被処理物を担持する自転可能なマンドレルと、複数のマンドレルを搬送経路に沿って移動させる搬送ユニットであるマンドレルホイールを備えている。
これら公知のオフセット印刷では、マンドレル自体に駆動機構がなく、筒形状の被処理物と転写部材との接触により、摩擦力で駆動されてマンドレルが回転するように構成されている。 For example, in a printing apparatus known in Patent Document 1, a blanket wheel or a blanket belt, which is a transfer member having an image area on the surface of which is formed, a mandrel capable of rotating, which carries a cylindrical workpiece, The mandrel wheel is a transport unit that moves the mandrel along the transport path.
In these known offset printing, the mandrel itself has no drive mechanism, and is configured to be driven by a frictional force and rotate the mandrel by contact between the cylindrical workpiece and the transfer member.

この時、転写部材には被処理物へのインク転写性、インクのぬれ広がりの最適化が求められる一方、被処理物への回転駆動のための摩擦係数や転写部材の耐久性の最適化も求められ、例えば、転写に最適な接触圧では十分な摩擦駆動力が得られない等、処理速度が高速化するほど、これらを両立することは困難となるという問題があった。
また、マンドレルの急激な加速度を緩和するために、転写部材と筒形状の被処理物が接触する前に、マンドレルを他の機構により予め回転（プレスピン）させる方法も知られているが、転写中の回転の維持は摩擦駆動力に依存することから、転写部材の摩擦係数が低い場合には転写中にずれが発生し印刷の品質が低下するという問題があり、高速化の妨げとなっていた。 At this time, the transfer member is required to optimize the ink transfer property to the object to be processed and the wetting and spreading of the ink. On the other hand, the friction coefficient for rotational driving to the object to be processed and the durability of the transfer member are also optimized. For example, there is a problem that it becomes more difficult to achieve both of them as the processing speed increases, for example, a sufficient frictional driving force cannot be obtained with a contact pressure optimum for transfer.
In order to mitigate the rapid acceleration of the mandrel, there is also known a method in which the mandrel is rotated (press pin) in advance by another mechanism before the transfer member and the cylindrical workpiece are in contact with each other. Since maintaining the rotation depends on the frictional driving force, there is a problem that if the transfer member has a low coefficient of friction, there will be a shift in the transfer and the print quality will deteriorate, which hinders speeding up. It was.

本発明は、これらの問題点を解決するものであり、転写部材から被処理物へのインク転写性、インクのぬれ広がり等の最適化と、被処理物への回転駆動力や転写部材の耐久性等の最適化を両立させ、処理速度が高速化しても印刷の品質を維持し、高い生産効率が得られる印刷装置を提供することを目的とするものである。   The present invention solves these problems, and optimizes ink transfer properties from the transfer member to the object to be processed, ink wetting and spreading, rotation driving force to the object to be processed, and durability of the transfer member. It is an object of the present invention to provide a printing apparatus capable of achieving high production efficiency while maintaining the quality of printing even when optimization of performance and the like is made compatible and the processing speed is increased.

本発明に係る印刷装置は、表面にインク画像を形成する画像領域を有する転写部材と、筒形状の被処理物を担持する自転可能なマンドレルと、複数の前記マンドレルを搬送経路に沿って移動させる搬送ユニットを備え、前記転写部材の画像領域に形成されたインク画像を、被処理物の胴部の外周面に転写する転写ステーションを有する印刷装置であって、少なくとも前記転写ステーションにおいて筒形状の被処理物を回転駆動する補助駆動部材をさらに有し、前記補助駆動部材は、前記マンドレルまたは被処理物の胴部の非印刷領域と接触するように配置されていることにより、前記課題を解決するものである。   A printing apparatus according to the present invention moves a transfer member having an image region on the surface thereof to form an ink image, a mandrel capable of rotating to carry a cylindrical workpiece, and a plurality of the mandrels along a conveyance path. A printing apparatus comprising a transport unit and having a transfer station for transferring an ink image formed in an image area of the transfer member to an outer peripheral surface of a body portion of a processing object, and having a cylindrical shape at least at the transfer station It further has an auxiliary drive member that rotationally drives the processed object, and the auxiliary drive member is disposed so as to be in contact with the mandrel or a non-printing region of the body portion of the object to be processed, thereby solving the problem. Is.

本発明に係る印刷装置によれば、少なくとも転写ステーションにおいて筒形状の被処理物を回転駆動する補助駆動部材を有し、補助駆動部材は、マンドレルまたは被処理物の胴部の非印刷領域と接触するように配置されていることにより、転写部材から被処理物へのインク転写性、インクのぬれ広がり等の最適化と、補助駆動部材による被処理物への回転駆動力の最適化を両立できるとともに、転写部材の耐久性を低下させることもない。
このことで、処理速度が高速化しても印刷の品質を維持し、高い生産効率を得ることが可能となる。 The printing apparatus according to the present invention includes an auxiliary drive member that rotationally drives the cylindrical workpiece at least at the transfer station, and the auxiliary drive member is in contact with the non-printing area of the mandrel or the trunk of the workpiece. By arranging so, it is possible to achieve both optimization of ink transfer from the transfer member to the object to be processed, ink wetting and spreading, and optimization of the rotational driving force to the object to be processed by the auxiliary driving member. At the same time, the durability of the transfer member is not lowered.
As a result, even when the processing speed is increased, the printing quality can be maintained and high production efficiency can be obtained.

請求項２乃至請求項４に係る構成によれば、従来の円筒状のホイールや無端状のベルトを有する印刷装置にわずかに構成を加えるだけで、補助駆動部材を設けることができる。
請求項５に係る構成によれば、補助駆動部材は、少なくとも転写ステーションで転写部材の画像領域と被処理物の胴部の外周面が接触している間、マンドレルまたは被処理物の胴部の非印刷領域と接触するように配置されていることにより、転写中は確実に被処理物の回転駆動を維持することが可能となり、転写中のずれをより抑制することができる。
請求項６に係る構成によれば、マンドレルの補助駆動部材と接触する部分の直径が、インク画像が転写された被処理物の胴部のインク表面の直径と同一であることにより、ずれをさらに抑制し正確に転写することができる。 According to the structure which concerns on Claim 2 thru | or 4, an auxiliary drive member can be provided only by adding a structure slightly to the conventional printing apparatus which has a cylindrical wheel and an endless belt.
According to the fifth aspect of the present invention, the auxiliary drive member is disposed at least at the transfer station while the image area of the transfer member is in contact with the outer peripheral surface of the body of the object to be processed. By being arranged so as to be in contact with the non-printing area, it becomes possible to reliably maintain the rotational drive of the object to be processed during transfer, and to further suppress the shift during transfer.
According to the configuration of the sixth aspect, since the diameter of the portion of the mandrel that contacts the auxiliary drive member is the same as the diameter of the ink surface of the body portion of the workpiece to which the ink image is transferred, the deviation is further increased. Suppress and accurately transfer.

本発明の一実施形態に係る印刷装置の概略説明図。1 is a schematic explanatory diagram of a printing apparatus according to an embodiment of the present invention. 本発明の一実施形態に係る印刷装置の部分説明図。FIG. 2 is a partial explanatory diagram of a printing apparatus according to an embodiment of the present invention. 本発明の一実施形態に係る印刷装置の転写部材及び補助駆動部材の説明図。Explanatory drawing of the transfer member and auxiliary drive member of the printing apparatus which concern on one Embodiment of this invention. 本発明の他の実施形態に係る印刷装置の概略説明図。Schematic explanatory drawing of the printing apparatus which concerns on other embodiment of this invention. 本発明の他の実施形態に係る印刷装置の転写部材及び補助駆動部材の説明図。Explanatory drawing of the transfer member and auxiliary drive member of the printing apparatus which concerns on other embodiment of this invention. 本発明の第３の実施形態に係る印刷装置の概略説明図。Schematic explanatory drawing of the printing apparatus which concerns on the 3rd Embodiment of this invention. 本発明の第４の実施形態に係る印刷装置の概略説明図。Schematic explanatory drawing of the printing apparatus which concerns on the 4th Embodiment of this invention. 本発明の第５の実施形態に係る印刷装置の概略説明図。Schematic explanatory drawing of the printing apparatus which concerns on the 5th Embodiment of this invention.

本発明の一実施形態に係る印刷装置１００は、図１に概略で示すように、表面にインク画像を形成する画像領域１１２を有する転写部材であるブランケット１１１と、筒形状の被処理物である缶Ｃを担持する自転可能なマンドレル１２０と、複数のマンドレル１２０を搬送経路に沿って移動させる搬送ユニットであるマンドレルホイール１３０を備え、インク画像形成部１１３でブランケット１１１の画像領域１１２に形成されたインク画像を、缶Ｃの胴部の外周面に転写する転写ステーション１０１を有している。
ブランケット１１１は、図２や図３に示すように、回転する円筒状のホイール１１０の表面に配置されており、ホイール１１０の表面には、補助駆動部材１１４が、マンドレル１２０の軸線方向にブランケット１１１と並行して設けられている。
本実施形態では、転写ステーション１０１の缶Ｃの搬送経路の下流側には、マンドレルホイール１３０に対峙して、缶Ｃの胴部の外周面に転写された印刷面に保護剤をコーティングするコーティングホイール１４０が配置されている。 As schematically shown in FIG. 1, a printing apparatus 100 according to an embodiment of the present invention is a blanket 111 that is a transfer member having an image region 112 on the surface of which an ink image is formed, and a cylindrical workpiece. A mandrel 120 capable of rotating, which carries the can C, and a mandrel wheel 130 that is a transport unit that moves the plurality of mandrels 120 along the transport path, are formed in the image area 112 of the blanket 111 by the ink image forming unit 113. A transfer station 101 for transferring the ink image to the outer peripheral surface of the body portion of the can C is provided.
As shown in FIGS. 2 and 3, the blanket 111 is disposed on the surface of a rotating cylindrical wheel 110, and an auxiliary drive member 114 is disposed on the surface of the wheel 110 in the axial direction of the mandrel 120. Is provided in parallel.
In this embodiment, on the downstream side of the transfer path of the can C at the transfer station 101, a coating wheel that coats a protective agent on the printing surface transferred to the outer peripheral surface of the body portion of the can C against the mandrel wheel 130. 140 is arranged.

以上のように構成された本実施形態の動作について説明する。
マンドレルホイール１３０の転写ステーション１０１の上流側の所定の位置で、缶Ｃがマンドレル１２０に担持され、マンドレルホイール１３０の回転によって転写ステーション１０１に搬送される。
転写ステーション１０１に達すると、缶Ｃの胴部の外周面がブランケット１１１に接触するとともに、マンドレル１２０の缶Ｃを支持していない部分の外周面が補助駆動部材１１４と接触する。 The operation of the present embodiment configured as described above will be described.
The can C is carried on the mandrel 120 at a predetermined position upstream of the transfer station 101 of the mandrel wheel 130 and is conveyed to the transfer station 101 by the rotation of the mandrel wheel 130.
When the transfer station 101 is reached, the outer peripheral surface of the body portion of the can C comes into contact with the blanket 111 and the outer peripheral surface of the portion of the mandrel 120 that does not support the can C comes into contact with the auxiliary drive member 114.

ホイール１１０の周速度は、マンドレルホイール１３０の周速度より早く設定されており、マンドレル１２０及び担持された缶Ｃは、転写ステーション１０１を通過する間に１回転以上自転するとともに、マンドレルホイール１３０の中心方向に移動して所定の押圧力を付与され、缶Ｃの胴部の外周面にブランケット１１１の画像領域１１２に形成されたインク画像が転写される。
このとき、補助駆動部材１１４とマンドレル１２０の外周面との摩擦力を大きく設定することで、マンドレル１２０の自転のための回転力の伝達を補助駆動部材１１４とマンドレル１２０の外周面とで受け持つことができる。
そのことで、缶Ｃの胴部の外周面にブランケット１１１との間に働く周方向の力を最小化することができ、缶Ｃの胴部の外周面にブランケット１１１との接触圧をインク転写性、インクのぬれ広がり等を最適とするように設定することが可能となる。
また、缶Ｃの胴部の外周面にブランケット１１１との間に働く周方向の力を最小化することで、ブランケット１１１の耐久性も向上する。 The peripheral speed of the wheel 110 is set to be faster than the peripheral speed of the mandrel wheel 130, and the mandrel 120 and the supported can C rotate around one rotation or more while passing through the transfer station 101 and the center of the mandrel wheel 130. The ink image formed in the image area 112 of the blanket 111 is transferred to the outer peripheral surface of the barrel portion of the can C by being moved in the direction and given a predetermined pressing force.
At this time, by setting a large frictional force between the auxiliary drive member 114 and the outer peripheral surface of the mandrel 120, the auxiliary drive member 114 and the outer peripheral surface of the mandrel 120 are responsible for transmitting the rotational force for rotation of the mandrel 120. Can do.
As a result, the circumferential force acting between the outer peripheral surface of the barrel portion of the can C and the blanket 111 can be minimized, and the contact pressure with the blanket 111 is transferred to the outer peripheral surface of the barrel portion of the can C by ink transfer. Therefore, it is possible to set so that the wettability spread of ink and the like are optimized.
Moreover, durability of the blanket 111 is also improved by minimizing a circumferential force acting between the outer peripheral surface of the body portion of the can C and the blanket 111.

本実施形態では、補助駆動部材１１４と接触するマンドレル１２０の外周面の直径Ｄｍを缶Ｃの胴部の外周面に転写された印刷面を含む直径と同じに設定することで、理論上、インク画像がブランケット１１１から離れる際のインク表面とブランケット１１１の表面の速度差がゼロとなり、印刷のズレを確実に防止でき、処理速度が高速化しても印刷の品質を維持し、高い生産効率を得ることが可能となる。
また、ホイール１１０の径が大きい場合は、マンドレル１２０の外周面と缶Ｃの胴部の外周面の直径の差によるブランケット１１１の表面と缶Ｃの胴部の外周面の速度差への影響は極めて小さく、印刷のズレもないことから、補助駆動部材１１４と接触するマンドレル１２０の外周面の直径と、缶Ｃの胴部の外周面の直径が僅かに異なってもよい。
なお、本実施形態では、図３に示すような画像領域１１２を有するブランケット１１１が、ホイール１１０の周方向に全周にわたって設けられており、補助駆動部材１１４もホイール１１０の全周に連続的に設けられているが、１つの画像領域を有するブランケット１１１が、ホイール１１０の周方向に複数、所定間隔で配置されていてもよく、補助駆動部材１１４も任意の長さのものを周方向に多数配置したものであってもよい。 In the present embodiment, the diameter Dm of the outer peripheral surface of the mandrel 120 that contacts the auxiliary drive member 114 is theoretically set to the same diameter as the diameter including the printing surface transferred to the outer peripheral surface of the barrel portion of the can C. The difference in speed between the ink surface and the surface of the blanket 111 when the image leaves the blanket 111 becomes zero, and printing misalignment can be reliably prevented. Even when the processing speed is increased, the printing quality is maintained and high production efficiency is obtained. It becomes possible.
In addition, when the diameter of the wheel 110 is large, the influence on the speed difference between the surface of the blanket 111 and the outer peripheral surface of the body of the can C due to the difference in diameter between the outer peripheral surface of the mandrel 120 and the outer surface of the body of the can C is Since it is extremely small and there is no printing misalignment, the diameter of the outer peripheral surface of the mandrel 120 that contacts the auxiliary driving member 114 may be slightly different from the diameter of the outer peripheral surface of the body portion of the can C.
In this embodiment, a blanket 111 having an image region 112 as shown in FIG. 3 is provided over the entire circumference in the circumferential direction of the wheel 110, and the auxiliary drive member 114 is also continuously provided around the entire circumference of the wheel 110. However, a plurality of blankets 111 having one image area may be arranged at a predetermined interval in the circumferential direction of the wheel 110, and a large number of auxiliary drive members 114 having an arbitrary length are arranged in the circumferential direction. It may be arranged.

本発明の他の実施形態に係る印刷装置２００は、図４に概略で示すように、表面にインク画像形成部であるインクジェット部２１３によりインク画像２１２が形成される転写部材であるベルト２１１と、筒形状の被処理物である缶Ｃを担持する自転可能なマンドレル２２０と、複数のマンドレル２２０を搬送経路に沿って移動させる搬送ユニットであるマンドレルホイール２３０を備え、インクジェット部２１３でベルト２１１の表面に形成されたインク画像２１２を缶Ｃの胴部の外周面に転写する転写ステーション２０１を有している。
図５に示すように、ベルト２１１は転写ステーション２０１ではホイール２１０に掛け回されており、補助駆動部材２１４を表面に配置した補助駆動ホイール２１６が、マンドレル２２０の軸線方向にホイール２１０と並行して設けられている。
本実施形態では、転写ステーション２０１の缶Ｃの搬送経路の下流側には、マンドレルホイール２３０に対峙して、缶Ｃの胴部の外周面に転写された印刷面に保護剤をコーティングするコーティングホイール２４０が配置され、転写ステーション２０１のベルト２１１の経路の下流側には、ベルト２１１の表面に残留したインクを除去する洗浄部２１５が設けられている
本実施形態の動作は、前述の実施形態と同様である。 A printing apparatus 200 according to another embodiment of the present invention includes, as schematically illustrated in FIG. 4, a belt 211 that is a transfer member on the surface of which an ink image 212 is formed by an ink jet unit 213 that is an ink image forming unit, A mandrel 220 capable of rotating, which carries a can C, which is a cylindrical workpiece, and a mandrel wheel 230, which is a transport unit that moves a plurality of mandrels 220 along a transport path, are provided on the surface of the belt 211 by an ink jet unit 213. The transfer station 201 transfers the ink image 212 formed on the outer peripheral surface of the body of the can C.
As shown in FIG. 5, the belt 211 is wound around the wheel 210 at the transfer station 201, and the auxiliary drive wheel 216 having the auxiliary drive member 214 disposed on the surface thereof is parallel to the wheel 210 in the axial direction of the mandrel 220. Is provided.
In the present embodiment, on the downstream side of the transfer path of the can C at the transfer station 201, a coating wheel that coats the printing agent transferred to the outer peripheral surface of the body portion of the can C against the mandrel wheel 230. 240 is disposed, and a cleaning unit 215 for removing ink remaining on the surface of the belt 211 is provided on the downstream side of the path of the belt 211 of the transfer station 201. The operation of this embodiment is the same as that of the above-described embodiment. It is the same.

なお、本実施形態では、ベルト２１１の表面に直接インク画像２１２を形成しているが、ベルト２１１の表面に、前述の実施形態のようなブランケットを配置してもよく、逆に、前述の実施形態において、ホイール１１０の表面に直接インク画像を形成してもよい。
また、本実施形態では、補助駆動部材２１４を補助駆動ホイール２１６の表面に配置したが、前述の実施形態と同様に、ホイール２１０の幅を広くして、ホイール２１０の表面設けてもよく、ベルト２１１の幅を広くしてその表面を加工して補助駆動部材として機能させてもよい。
逆に、前述の実施形態において、ホイール１１０とは別の補助駆動ホイールを設けて補助駆動部材１１４を配置してもよく、補助駆動部材をタイミングベルト（ギア）で構成してもよい。
さらに、ベルト２１１は転写ステーション２０１でホイール２１０に掛け回されているが、例えば図６、図７に示すように、回転せず表面をベルト２１１が摺動する固定部材２１７Ａ、２１７Ｂの上を掛け回してもよく、図８に示すように、ベルト２１１が張られた部分に缶Ｃを押し付けるように構成してもよい。
これらの場合は、補助駆動ホイール２１６に代えてベルト２１１の幅を広くしてその表面を加工して補助駆動部材として機能させてもよい。 In this embodiment, the ink image 212 is directly formed on the surface of the belt 211. However, a blanket as in the above-described embodiment may be disposed on the surface of the belt 211. In an embodiment, the ink image may be formed directly on the surface of the wheel 110.
In the present embodiment, the auxiliary drive member 214 is disposed on the surface of the auxiliary drive wheel 216. However, as in the above-described embodiment, the wheel 210 may be widened and provided on the surface of the wheel 210. The width of 211 may be increased and the surface thereof may be processed to function as an auxiliary drive member.
On the other hand, in the above-described embodiment, an auxiliary driving wheel different from the wheel 110 may be provided and the auxiliary driving member 114 may be disposed, or the auxiliary driving member may be configured by a timing belt (gear).
Further, the belt 211 is wound around the wheel 210 at the transfer station 201. For example, as shown in FIGS. 6 and 7, the belt 211 is hung on the fixing members 217A and 217B on which the belt 211 slides without rotating. As shown in FIG. 8, the can C may be pressed against a portion where the belt 211 is stretched.
In these cases, instead of the auxiliary drive wheel 216, the width of the belt 211 may be increased and the surface thereof may be processed to function as an auxiliary drive member.

以上述べた実施形態では、補助駆動部材１１４、２１４は、ホイール１１０、２１０と同軸で回転するものであるが、転写ステーションにおいて缶Ｃの表面を転写部材と同一の移動速度となるように駆動できるものであれば、同軸ではなく別途回転駆動されてもよい。
さらに、マンドレル１２０、２２０の搬送を行う搬送ユニットは、マンドレルホイール１３０、２３０ではなく、コンベヤ等の他の手段で構成されてもよい。
また、補助駆動部材１１４、２１４は所定の厚みの弾性材料で構成されてもよい。
その際の弾性材料の厚みは均一でもよく、周方向の場所によって異なるものであってもよい。
缶が転写部材に一番始めに接触する部分において、転写部材が最も摩耗等のダメージを受けることから、補助駆動部材のその部分に並行に位置する部分を、他の部分より厚くしてダメージを抑制できるようにしてもよい。 In the embodiment described above, the auxiliary driving members 114 and 214 rotate coaxially with the wheels 110 and 210, but can be driven so that the surface of the can C has the same moving speed as the transfer member at the transfer station. As long as it is a thing, it may be rotationally driven separately instead of coaxially.
Further, the transport unit that transports the mandrels 120 and 220 may be configured by other means such as a conveyor instead of the mandrel wheels 130 and 230.
Further, the auxiliary driving members 114 and 214 may be made of an elastic material having a predetermined thickness.
In this case, the thickness of the elastic material may be uniform or different depending on the location in the circumferential direction.
At the part where the can comes into contact with the transfer member first, the transfer member suffers the most damage such as wear, so the part located in parallel with that part of the auxiliary drive member is made thicker than the other parts and damaged. You may enable it to suppress.

１００、２００ ・・・ 印刷装置
１０１、２０１ ・・・ 転写ステーション
１１０、２１０ ・・・ ホイール
１１１ ・・・ ブランケット（転写部材）
２１１ ・・・ ベルト（転写部材）
１１２ ・・・ 画像領域
２１２ ・・・ インク画像
１１３ ・・・ インク画像形成部
２１３ ・・・ インクジェット部（インク画像形成部）
１１４、２１４ ・・・ 補助駆動部材
２１５ ・・・ 洗浄部
２１６ ・・・ 補助駆動ホイール
２１７ ・・・ 固定部材
１２０、２２０ ・・・ マンドレル
１３０、２３０ ・・・ マンドレルホイール（搬送ユニット）
１４０、２４０ ・・・ コーティングホイール
Ｃ ・・・ 缶（被処理物） DESCRIPTION OF SYMBOLS 100, 200 ... Printing apparatus 101, 201 ... Transfer station 110, 210 ... Wheel 111 ... Blanket (transfer member)
211 ・ ・ ・ Belt (transfer member)
112 ... Image area 212 ... Ink image 113 ... Ink image forming part 213 ... Inkjet part (ink image forming part)
114, 214 ... Auxiliary drive member 215 ... Washing section 216 ... Auxiliary drive wheel 217 ... Fixing member 120, 220 ... Mandrel 130, 230 ... Mandrel wheel (conveyance unit)
140, 240 ... coating wheel C ... can (processed object)

Claims (7)

表面にインク画像を形成する画像領域を有する転写部材と、筒形状の被処理物を担持する自転可能なマンドレルと、複数の前記マンドレルを搬送経路に沿って移動させる搬送ユニットを備え、
前記転写部材の画像領域に形成されたインク画像を、被処理物の胴部の外周面に転写する転写ステーションを有する印刷装置であって、
少なくとも前記転写ステーションにおいて筒形状の被処理物を回転駆動する補助駆動部材をさらに有し、
前記補助駆動部材は、前記マンドレルまたは被処理物の胴部の非印刷領域と接触するように配置されていることを特徴とする印刷装置。 A transfer member having an image area for forming an ink image on the surface, a self-rotating mandrel carrying a cylindrical object to be processed, and a transport unit that moves the plurality of mandrels along a transport path;
A printing apparatus having a transfer station for transferring an ink image formed in an image area of the transfer member to an outer peripheral surface of a body portion of an object to be processed,
An auxiliary drive member that rotationally drives the cylindrical workpiece at least in the transfer station;
The printing apparatus, wherein the auxiliary driving member is disposed so as to contact a non-printing region of the mandrel or a body portion of the workpiece. 前記転写部材が、回転する円筒状のホイールの表面に配置されており、
前記補助駆動部材は、前記転写部材と前記マンドレルの軸線方向に並行して設けられていることを特徴とする請求項１に記載の印刷装置。 The transfer member is disposed on the surface of a rotating cylindrical wheel;
The printing apparatus according to claim 1, wherein the auxiliary driving member is provided in parallel with an axial direction of the transfer member and the mandrel. 前記転写部材が、無端状のベルトの表面に配置されており、
前記補助駆動部材は、前記転写部材と前記マンドレルの軸線方向に並行して設けられていることを特徴とする請求項１に記載の印刷装置。 The transfer member is disposed on the surface of an endless belt;
The printing apparatus according to claim 1, wherein the auxiliary driving member is provided in parallel with an axial direction of the transfer member and the mandrel. 前記転写部材が、回転する円筒状のホイールまたは無端状のベルトの表面に配置されており、
前記補助駆動部材が、前記画像領域の表面と等速で移動する接触面を有する補助ホイールを備え、前記転写部材と前記マンドレルの軸線方向に並行して設けられていることを特徴とする請求項１に記載の印刷装置。 The transfer member is disposed on the surface of a rotating cylindrical wheel or endless belt;
The auxiliary drive member includes an auxiliary wheel having a contact surface that moves at a constant speed with the surface of the image area, and is provided in parallel with the axial direction of the transfer member and the mandrel. The printing apparatus according to 1. 前記補助駆動部材は、少なくとも前記転写ステーションで前記転写部材の画像領域と被処理物の胴部の外周面が接触している間、前記マンドレルまたは被処理物の胴部の非印刷領域と接触するように配置されていることを特徴とする請求項１乃至請求項４のいずれかに記載の印刷装置。   The auxiliary drive member is in contact with the mandrel or the non-printing area of the body of the workpiece while the image area of the transfer member is in contact with the outer peripheral surface of the body of the workpiece at least at the transfer station. The printing apparatus according to claim 1, wherein the printing apparatus is arranged as described above. 前記補助駆動部材は、前記マンドレルと接触するように配置され、
前記マンドレルの前記補助駆動部材と接触する部分の直径が、インク画像が転写された被処理物の胴部のインク表面の直径と同一であることを特徴とする請求項１乃至請求項５のいずれかに記載の印刷装置。 The auxiliary drive member is disposed in contact with the mandrel;
6. The diameter of the portion of the mandrel that contacts the auxiliary drive member is the same as the diameter of the ink surface of the body portion of the object to which the ink image is transferred. A printing apparatus according to claim 1. 前記搬送ユニットは、前記複数のマンドレルを有するマンドレルホイールであることを特徴とする請求項１乃至請求項６のいずれかに記載の印刷装置。   The printing apparatus according to claim 1, wherein the transport unit is a mandrel wheel having the plurality of mandrels.
JP2018103005A 2018-05-30 2018-05-30 Printing device Pending JP2019206129A (en)

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JPH09267466A (en) * 1996-03-29 1997-10-14 Mitsubishi Materials Corp Can printer
JP2001138484A (en) * 1999-11-10 2001-05-22 Hokkai Can Co Ltd Varnish coating device for two-piece can
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JP2010502489A (en) * 2006-09-12 2010-01-28 アンピカ Printing device by transfer to cylindrical printing media
JP2012176618A (en) * 2012-03-30 2012-09-13 Universal Seikan Kk Can printing apparatus, printing method, and mandrel for holding cylindrical container

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JP6809916B2 (en) * 2016-04-28 2021-01-06 昭和アルミニウム缶株式会社 Printing equipment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61205143A (en) * 1985-03-07 1986-09-11 Toyo Seikan Kaisha Ltd Print coating method with print coating can cylinder and 2-piece can cylinder
JPH09267466A (en) * 1996-03-29 1997-10-14 Mitsubishi Materials Corp Can printer
JP2001138484A (en) * 1999-11-10 2001-05-22 Hokkai Can Co Ltd Varnish coating device for two-piece can
JP2010502489A (en) * 2006-09-12 2010-01-28 アンピカ Printing device by transfer to cylindrical printing media
JP2008254405A (en) * 2007-04-09 2008-10-23 Nec Lcd Technologies Ltd Printing method, printer, and liquid-crystal display device manufactured by using the printing method
JP2012176618A (en) * 2012-03-30 2012-09-13 Universal Seikan Kk Can printing apparatus, printing method, and mandrel for holding cylindrical container

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