JP2003341878A - Cylinder type screen printing machine - Google Patents
Cylinder type screen printing machineInfo
- Publication number
- JP2003341878A JP2003341878A JP2002147719A JP2002147719A JP2003341878A JP 2003341878 A JP2003341878 A JP 2003341878A JP 2002147719 A JP2002147719 A JP 2002147719A JP 2002147719 A JP2002147719 A JP 2002147719A JP 2003341878 A JP2003341878 A JP 2003341878A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- printing
- printed
- opening
- closing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Screen Printers (AREA)
- Controlling Sheets Or Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転する印刷シリ
ンダと移動する印刷スクリーンとの間の被印刷物に印刷
を行うシリンダ型スクリーン印刷機に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder type screen printing machine for printing a material to be printed between a rotating printing cylinder and a moving printing screen.
【０００２】[0002]
【従来の技術】フィーダから印刷シリンダと印刷スクリ
ーンとの間へ被印刷物を搬送する場合、被印刷物を吸着
搬送するための吸引手段を用いたシリンダ型スクリーン
印刷機がある。フィーダから印刷シリンダと印刷スクリ
ーンとの間に被印刷物を供給するための搬送部は、搬送
台と、搬送台上に配設された搬送ベルトとを備えてい
る。吸引手段は、搬送ベルトの走行領域と重なる搬送台
の重合範囲に設けられた複数の不動吸引領域と、搬送ベ
ルトに沿って搬送ベルトに設けられた複数の可動吸引孔
と、前記不動吸引領域に吸引作用を生じさせる単一の吸
引源とを備えている。被印刷物は、吸引手段の吸引作用
を受けながら搬送ベルトの走行に追随するように搬送さ
れる。2. Description of the Related Art When a material to be printed is conveyed from a feeder between a printing cylinder and a printing screen, there is a cylinder type screen printing machine using suction means for adsorbing and conveying the material to be printed. The transport unit for feeding the printing material from the feeder between the printing cylinder and the printing screen includes a transport base and a transport belt arranged on the transport base. The suction means includes a plurality of immovable suction areas provided in the overlapping area of the conveyor table that overlaps the traveling area of the conveyor belt, a plurality of movable suction holes provided in the conveyor belt along the conveyor belt, and the immovable suction area. And a single suction source that produces a suction effect. The material to be printed is conveyed so as to follow the traveling of the conveyor belt while receiving the suction action of the suction means.
【０００３】[0003]
【発明が解決しようとする課題】吸引手段を作動した状
態では、複数の不動吸引領域の全てに吸引作用が生じて
おり、不動吸引領域と重なり合う搬送ベルト上の可動吸
引孔には吸引作用が生じる。そのため、被印刷物が１つ
の不動吸引領域とのみ重なり合っている場合（例えば、
被印刷物の搬送初期）には、他の不動吸引領域における
吸引作用が無駄になる。即ち、１つの不動吸引領域にお
ける吸引作用のみによって被印刷物を吸着搬送する際に
は、他の不動吸引領域における無駄な吸引作用による吸
引効率の低下が大きい。When the suction means is in operation, the suction action is generated in all of the immovable suction regions, and the movable suction holes on the conveyor belt overlapping with the immovable suction regions have the suction action. . Therefore, when the printing material overlaps only one immovable suction area (for example,
At the initial stage of the conveyance of the material to be printed, the suction action in other immovable suction regions is wasted. That is, when the print object is sucked and conveyed only by the suction action in one immovable suction region, the suction efficiency is largely reduced by the unnecessary suction action in the other immovable suction region.
【０００４】本発明は、被印刷物を吸着搬送するための
吸引手段を用いたシリンダ型スクリーン印刷機における
吸引手段の吸引効率を向上することを目的とする。It is an object of the present invention to improve the suction efficiency of a suction means in a cylinder type screen printing machine which uses suction means for sucking and transporting a material to be printed.
【０００５】[0005]
【課題を解決するための手段】本発明は、回転する印刷
シリンダと移動する印刷スクリーンとの間の被印刷物に
印刷を行うシリンダ型スクリーン印刷機を対象とし、請
求項１の発明では、前記印刷シリンダに前記被印刷物を
供給するための搬送部で前記被印刷物を吸引する吸引手
段と、前記吸引手段の吸引対象領域を前記被印刷物の移
動方向へ変更するための吸引対象領域変更手段とを備え
たシリンダ型スクリーン印刷機を構成し、前記搬送部に
おける前記被印刷物の移動に合わせて前記吸引手段の吸
引対象領域を前記被印刷物の移動方向へ変更するように
した。SUMMARY OF THE INVENTION The present invention is directed to a cylinder type screen printing machine for printing on a substrate between a rotating printing cylinder and a moving printing screen. Suction means for sucking the printing material by a transport unit for supplying the printing material to the cylinder, and suction target area changing means for changing the suction target area of the suction means in the moving direction of the printing material. The cylinder type screen printing machine is configured to change the suction target area of the suction means in the moving direction of the printing object according to the movement of the printing object in the transport section.
【０００６】被印刷物の移動に合わせて吸引手段の吸引
対象領域を被印刷物の移動方向へ変更する構成は、吸引
手段の吸引対象領域と被印刷物との外れ割合を少なくす
る上で有効である。吸引手段の吸引対象領域と被印刷物
との外れ割合を少なくするほど、吸引手段における吸引
効率が向上する。The structure in which the suction target area of the suction means is changed in the moving direction of the print object in accordance with the movement of the print object is effective in reducing the deviation ratio between the suction target area of the suction means and the print object. The suction efficiency of the suction unit is improved as the ratio of detachment between the suction target region of the suction unit and the printing material is reduced.
【０００７】請求項２の発明では請求項１において、前
記被印刷物の移動方向に沿って配設された搬送ベルトを
備えた前記搬送部を構成し、前記搬送ベルトの走行領域
と重なる不動吸引孔を有する複数の吸引ボックスと、前
記搬送ベルトに沿って前記搬送ベルトに設けられた複数
の可動吸引孔と、前記不動吸引孔に吸引作用を生じさせ
る単一の吸引源とを備えた前記吸引手段を構成し、前記
吸引源と前記複数の吸引ボックスとを個別に繋ぐ複数の
吸引通路を開閉する開閉手段と、前記複数の吸引通路の
うちのいずれか１つのみを選択して前記開閉手段に開放
させる開閉変更制御手段とを備えた前記吸引対象領域変
更手段を構成した。According to a second aspect of the present invention, in the first aspect, the immovable suction hole that constitutes the conveying section is provided with the conveying belt arranged along the moving direction of the material to be printed, and the immovable suction hole overlaps the traveling area of the conveying belt. The suction means including a plurality of suction boxes having a plurality of movable suction holes, a plurality of movable suction holes provided on the conveyor belt along the conveyor belt, and a single suction source that causes a suction action in the immobile suction holes. And opening / closing means for opening / closing a plurality of suction passages that individually connect the suction source and the plurality of suction boxes, and only one of the plurality of suction passages is selected as the opening / closing means. The suction target area changing means is provided with an opening / closing change control means for opening.
【０００８】開閉変更制御手段は、搬送部における被印
刷物の移動に合わせて、複数の吸引通路のうちのいずれ
か１つのみを選択して開閉手段に開放させる。従って、
複数の吸引通路は、搬送部における被印刷物の移動方向
へ順次１つのみ開放されて行く。The opening / closing change control means selects only one of the plurality of suction passages and opens the opening / closing means in accordance with the movement of the material to be printed in the transport section. Therefore,
Only one of the plurality of suction passages is sequentially opened in the moving direction of the printed material in the transport unit.
【０００９】請求項３の発明では、請求項２において、
前記搬送部における前記被印刷物の移動位置を検出する
位置検出手段と、前記複数の吸引通路のうちのいずれか
１つのみを前記開閉手段に開放させる対象を前記位置検
出手段によって得られる位置検出情報に基づいて選択す
る選択手段とを備えた前記開閉変更制御手段を構成し
た。According to the invention of claim 3, in claim 2,
Position detection means for detecting the moving position of the printed material in the transport section, and position detection information obtained by the position detection means for opening only one of the plurality of suction passages to the opening / closing means. The opening / closing change control means is provided with a selecting means for selecting the opening / closing change control means.
【００１０】選択手段は、位置検出手段の移動位置検出
情報に基づいて複数の吸引通路のうちのいずれか１つの
みを開閉手段に開放させ、開閉手段は、搬送部における
被印刷物の移動方向へ順次複数の吸引通路を１つずつ開
放してゆく。The selecting means opens only one of the plurality of suction passages to the opening / closing means based on the moving position detection information of the position detecting means, and the opening / closing means moves in the moving direction of the printing material in the transport section. Open a plurality of suction passages one by one.
【００１１】[0011]
【発明の実施の形態】以下、本発明を具体化した第１の
実施の形態を図１及び図２に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
【００１２】図１に示すように、シリンダ型スクリーン
印刷機は、自動供給装置１１と搬送部１２と印刷部１３
と排出部１４とから構成されている。自動供給装置１１
は、搬送部１２を構成する無端状の搬送ベルト１９上に
被印刷物Ｐを供給する。搬送ベルト１９は、自動供給装
置１１から供給された被印刷物Ｐ（例えば紙）を印刷部
１３側へ搬送する。As shown in FIG. 1, the cylinder type screen printing machine includes an automatic feeding device 11, a conveying section 12, and a printing section 13.
And a discharge section 14. Automatic feeder 11
Supplies the material P to be printed onto the endless conveyor belt 19 that constitutes the conveyor 12. The conveyor belt 19 conveys the printing target P (for example, paper) supplied from the automatic supply device 11 to the printing unit 13 side.
【００１３】図２に示すように、搬送部１２は、左右に
離間して配置された一対の搬送台２０，２１と、一対の
搬送台２０，２１間に配設された搬送ベルト１９と、搬
送ベルト１９の周回軌道の内側に配設された複数の吸引
ボックス２３，２４，２５，２６とを備えている。搬送
ベルト１９は、一方方向へ同期して回転駆動される駆動
ローラ２７，２８に掛け渡されており、搬送ベルト１９
の上側水平部１９１が吸引ボックス２３〜２６の上面に
摺接するように図２の矢印Ｑの方向に移動する。As shown in FIG. 2, the transport unit 12 includes a pair of transport bases 20 and 21 which are spaced apart from each other on the left and right, and a transport belt 19 which is disposed between the pair of transport bases 20 and 21. It is provided with a plurality of suction boxes 23, 24, 25, 26 arranged inside the orbit of the conveyor belt 19. The conveyor belt 19 is wound around drive rollers 27 and 28 that are rotationally driven in synchronization with one direction.
2 moves in the direction of arrow Q in FIG. 2 so that the upper horizontal part 191 of the above-mentioned slides in sliding contact with the upper surfaces of the suction boxes 23 to 26.
【００１４】各吸引ボックス２３〜２６の上面には複数
の不動吸引孔２３１，２４１，２５１，２６１が形成さ
れている。搬送ベルト１９の上側水平部１９１の走行方
向に長い形状の不動吸引孔２３１，２４１，２５１，２
６１は、搬送ベルト１９の幅方向に並列されている。搬
送ベルト１９には多数の可動吸引孔１９２が形成されて
いる。搬送ベルト１９の走行に伴う上側水平部１９１に
おける可動吸引孔１９２の移動軌跡は、いずれも不動吸
引孔２３１，２４１，２５１，２６１と重なる。A plurality of immovable suction holes 231, 241, 251, 261 are formed on the upper surface of each suction box 23-26. Immovable suction holes 231, 241, 251 and 2, which are long in the running direction of the upper horizontal portion 191 of the conveyor belt 19.
61 are arranged in parallel in the width direction of the conveyor belt 19. The transport belt 19 has a large number of movable suction holes 192. The moving loci of the movable suction holes 192 in the upper horizontal portion 191 as the transport belt 19 travels all overlap with the immovable suction holes 231, 241, 251, 261.
【００１５】図１に示すように、吸引ボックス２３〜２
６は、吸引通路Ｌ１，Ｌ２，Ｌ３，Ｌ４を介して吸引ポ
ンプ３３に接続されており、各吸引通路Ｌ１，Ｌ２，Ｌ
３，Ｌ４には電磁開閉弁２９，３０，３１，３２が介在
されている。電磁開閉弁２９〜３２は、励磁によって開
状態（図１では電磁開閉弁３２が開状態）となり、消磁
によって閉状態（図１では電磁開閉弁２９〜３１が閉状
態）となる。電磁開閉弁２９〜３２は、吸引通路Ｌ１〜
４を開閉するための開閉手段となる。単一の吸引源であ
る吸引ポンプ３３が作動状態にあるとき、図１の状態で
は、吸引ポンプ３３の吸引作用が開状態の電磁開閉弁３
２に対応する吸引通路Ｌ４を介して吸引ボックス２６に
波及する。従って、吸引ボックス２６内が負圧状態にな
り、吸引ボックス２６における不動吸引孔２６１に吸引
作用が生じる。閉状態の電磁開閉弁２９〜３１に対応す
る吸引ボックス２３〜２５内は、大気圧であり、吸引ボ
ックス２３における不動吸引孔２３１〜２５１に吸引作
用が生じることはない。As shown in FIG. 1, the suction boxes 23-2
6 is connected to the suction pump 33 via the suction passages L1, L2, L3, L4, and the suction passages L1, L2, L
Electromagnetic on-off valves 29, 30, 31, 32 are interposed between 3 and L4. The electromagnetic on-off valves 29 to 32 are opened by excitation (the electromagnetic on-off valve 32 is open in FIG. 1) and closed by demagnetization (the electromagnetic on-off valves 29 to 31 are closed in FIG. 1). The electromagnetic opening / closing valves 29 to 32 are provided in the suction passage L1
It serves as opening / closing means for opening / closing 4. When the suction pump 33, which is a single suction source, is in the operating state, the suction action of the suction pump 33 is in the open state in the state shown in FIG.
It spreads to the suction box 26 via the suction passage L4 corresponding to 2. Therefore, the inside of the suction box 26 is in a negative pressure state, and the immobile suction hole 261 in the suction box 26 has a suction action. The inside of the suction boxes 23 to 25 corresponding to the closed electromagnetic on-off valves 29 to 31 is at atmospheric pressure, and the immobile suction holes 231 to 251 in the suction box 23 do not have a suction action.
【００１６】吸引ポンプ３３、電磁開閉弁２９〜３２、
吸引ボックス２３〜２６及び搬送ベルト１９は、搬送部
１２で被印刷物Ｐを吸引する吸引手段を構成する。この
吸引手段の吸引対象領域は、内部圧力が負圧になってい
る吸引ボックス２３の上面に重なる可動吸引孔１９２の
直上である。A suction pump 33, electromagnetic on-off valves 29 to 32,
The suction boxes 23 to 26 and the conveyor belt 19 constitute a suction unit that sucks the print target P in the conveyor 12. The suction target area of the suction means is directly above the movable suction hole 192 that overlaps the upper surface of the suction box 23 whose internal pressure is negative.
【００１７】図２に示すように、搬送部１２における被
印刷物Ｐの移動経路の直上には複数の位置検出器３４，
３５，３６，３７が配設されている。位置検出器３４〜
３７は、例えば反射式光電センサからなる。位置検出器
３４は、被印刷物Ｐの先端部Ｐ１が吸引ボックス２３の
不動吸引孔２３１の始端位置に到達すると、ＯＮ信号を
出力する。位置検出器３５は、被印刷物Ｐの先端部Ｐ１
が吸引ボックス２４の不動吸引孔２４１の始端位置に到
達すると、ＯＮ信号を出力する。位置検出器３６は、被
印刷物Ｐの先端部Ｐ１が吸引ボックス２５の不動吸引孔
２５１の始端位置に到達すると、ＯＮ信号を出力する。
位置検出器３７は、被印刷物Ｐの先端部Ｐ１が吸引ボッ
クス２６の不動吸引孔２６１の始端位置に到達すると、
ＯＮ信号を出力する。位置検出器３４〜３７は、搬送部
１２における被印刷物Ｐの移動位置を検出する位置検出
手段である。As shown in FIG. 2, a plurality of position detectors 34, are provided directly above the movement path of the printing material P in the transport section 12.
35, 36 and 37 are arranged. Position detector 34 ~
The reference numeral 37 is, for example, a reflection type photoelectric sensor. The position detector 34 outputs an ON signal when the front end P1 of the printing target P reaches the starting end position of the immovable suction hole 231 of the suction box 23. The position detector 35 is provided at the front end portion P1 of the printed material P.
When reaches the starting end position of the immovable suction hole 241 of the suction box 24, an ON signal is output. The position detector 36 outputs an ON signal when the front end portion P1 of the printed material P reaches the starting end position of the immovable suction hole 251 of the suction box 25.
The position detector 37, when the front end portion P1 of the printing material P reaches the starting end position of the immovable suction hole 261 of the suction box 26,
Output an ON signal. The position detectors 34 to 37 are position detecting means for detecting the moving position of the printed material P on the transport unit 12.
【００１８】図１に示すように、位置検出器３４〜３７
から出力されるＯＮ信号は、制御装置３８へ送られる。
制御装置３８は、位置検出器３４〜３７から送られるＯ
Ｎ信号に基づいて電磁開閉弁２９〜３２の励消磁を制御
する。制御装置３８は、複数の吸引通路Ｌ１〜Ｌ４のう
ちのいずれか１つのみを電磁開閉弁２９〜３２に開放さ
せる対象を位置検出器３４〜３７によって得られる位置
検出情報に基づいて選択する選択手段となる。前記位置
検出手段及び選択手段は、複数の吸引通路Ｌ１〜Ｌ４の
うちのいずれか１つのみを選択して前記開閉手段に開放
させる開閉変更制御手段を構成する。前記開閉手段及び
開閉変更制御手段は、吸引手段の吸引対象領域を被印刷
物Ｐの移動方向へ変更するための吸引対象領域変更手段
を構成する。As shown in FIG. 1, the position detectors 34-37.
The ON signal output from is sent to the control device 38.
The control device 38 sends O signals from the position detectors 34 to 37.
Excitation / demagnetization of the electromagnetic on-off valves 29 to 32 is controlled based on the N signal. The controller 38 selects a target for opening only one of the suction passages L1 to L4 to the electromagnetic opening / closing valves 29 to 32 based on the position detection information obtained by the position detectors 34 to 37. It becomes a means. The position detection means and the selection means constitute opening / closing change control means for selecting only one of the plurality of suction passages L1 to L4 and opening it to the opening / closing means. The opening / closing unit and the opening / closing change control unit constitute a suction target region changing unit for changing the suction target region of the suction unit in the moving direction of the print target P.
【００１９】印刷部１３は、印刷シリンダ１５と、印刷
シリンダ１５の上方に配設された印刷枠１６と、印刷枠
１６の内側に付属して張られた印刷スクリーン１６１
と、印刷スクリーン１６１の上方に配設されたスキージ
１７と、印刷スクリーン１６１の上方に配設されたドク
タ１８とを備えている。印刷シリンダ１５は、回動可能
に支持されており、印刷枠１６は、水平方向へ往復移動
可能に支持されている。The printing section 13 includes a printing cylinder 15, a printing frame 16 disposed above the printing cylinder 15, and a printing screen 161 attached to the inside of the printing frame 16 and attached thereto.
The squeegee 17 is provided above the printing screen 161, and the doctor 18 is provided above the printing screen 161. The print cylinder 15 is rotatably supported, and the print frame 16 is horizontally movably supported.
【００２０】次に、シリンダ型スクリーン印刷機の作用
を説明する。自動供給装置１１は、被印刷物Ｐを搬送部
１２へ供給し、被印刷物Ｐは、図２の鎖線位置（不動吸
引孔２３１の始端の直上付近）に配置される。この配置
状態では被印刷物Ｐの先端部Ｐ１が位置検出器３４の検
出対象領域に入り、位置検出器３４が被印刷物Ｐの先端
部Ｐ１の到達を検出してＯＮ信号を制御装置３８に出力
する。制御装置３８は、位置検出器３４からのＯＮ信号
の入力に応答して、吸引ポンプ３３を作動させると共
に、電磁開閉弁２９を励磁する。すると、吸引ポンプ３
３の吸引作用が吸引ボックス２３に伝わり、吸引ボック
ス２３における不動吸引孔２３１に吸引作用が生じる。
不動吸引孔２３１における吸引作用は、不動吸引孔２３
１に重なり合っている搬送ベルト１９における可動吸引
孔１９２に伝わる。従って、被印刷物Ｐは、不動吸引孔
２３１に重なり合っている可動吸引孔１９２から吸引力
を受けて搬送ベルト１９に吸着される。搬送ベルト１９
に吸着されている被印刷物Ｐは、搬送ベルト１９の走行
と共に搬送ベルト１９の走行方向へ移動する。Next, the operation of the cylinder type screen printing machine will be described. The automatic supply device 11 supplies the printed material P to the transport unit 12, and the printed material P is arranged at a chain line position in FIG. 2 (in the vicinity of just above the starting end of the immovable suction hole 231). In this arrangement, the front end P1 of the printed material P enters the detection target area of the position detector 34, the position detector 34 detects the arrival of the front end P1 of the printed material P, and outputs an ON signal to the control device 38. . The control device 38 responds to the input of the ON signal from the position detector 34, operates the suction pump 33, and excites the electromagnetic opening / closing valve 29. Then suction pump 3
The suction action of 3 is transmitted to the suction box 23, and the immovable suction hole 231 in the suction box 23 has a suction action.
The suction action of the immovable suction hole 231 is the same as that of the immobile suction hole 23.
1 is transmitted to the movable suction hole 192 of the conveyor belt 19 overlapping with 1. Therefore, the printing material P receives the suction force from the movable suction hole 192 overlapping with the immovable suction hole 231, and is attracted to the transport belt 19. Conveyor belt 19
The printing material P adsorbed on the sheet P moves in the traveling direction of the conveyor belt 19 as the conveyor belt 19 travels.
【００２１】被印刷物Ｐの先端部Ｐ１が吸引ボックス２
４における不動吸引孔２４１の始端の直上付近に配置さ
れると、位置検出器３５が被印刷物Ｐの先端部Ｐ１の到
達を検出してＯＮ信号を制御装置３８に出力する。制御
装置３８は、位置検出器３５からのＯＮ信号の入力に応
答して、電磁開閉弁３０を励磁すると共に、電磁開閉弁
２９を消磁する。すると、吸引ポンプ３３の吸引作用が
吸引ボックス２４に伝わり、吸引ボックス２４における
不動吸引孔２４１に吸引作用が生じる。吸引ボックス２
３に対する吸引ポンプ３３の伝達は停止し、吸引ボック
ス２３における不動吸引孔２３１に生じていた吸引作用
はなくなる。不動吸引孔２４１における吸引作用は、不
動吸引孔２４１に重なり合っている搬送ベルト１９にお
ける可動吸引孔１９２に伝わる。従って、被印刷物Ｐ
は、不動吸引孔２４１に重なり合っている可動吸引孔１
９２から吸引力を受けて搬送ベルト１９に吸着される。
搬送ベルト１９に吸着されている被印刷物Ｐは、搬送ベ
ルト１９の走行と共に搬送ベルト１９の走行方向へ移動
する。The front end P1 of the material P to be printed is the suction box 2
When the position detector 35 is arranged immediately above the starting end of the immovable suction hole 241 in FIG. In response to the input of the ON signal from the position detector 35, the control device 38 excites the electromagnetic opening / closing valve 30 and demagnetizes the electromagnetic opening / closing valve 29. Then, the suction action of the suction pump 33 is transmitted to the suction box 24, and the suction action is generated in the immovable suction hole 241 in the suction box 24. Suction box 2
The transmission of the suction pump 33 to 3 is stopped, and the suction action generated in the immobile suction hole 231 in the suction box 23 disappears. The suction action of the immovable suction hole 241 is transmitted to the movable suction hole 192 of the transport belt 19 which overlaps with the immobile suction hole 241. Therefore, the printed material P
Is the movable suction hole 1 overlapping with the immovable suction hole 241.
It receives suction force from 92 and is attracted to the conveyor belt 19.
The printing material P adsorbed to the conveyor belt 19 moves in the traveling direction of the conveyor belt 19 as the conveyor belt 19 travels.
【００２２】被印刷物Ｐの先端部Ｐ１が吸引ボックス２
５における不動吸引孔２５１の始端の直上付近に配置さ
れると、位置検出器３６が被印刷物Ｐの先端部Ｐ１の到
達を検出してＯＮ信号を制御装置３８に出力する。制御
装置３８は、位置検出器３６からのＯＮ信号の入力に応
答して、電磁開閉弁３１を励磁すると共に、電磁開閉弁
３０を消磁する。電磁開閉弁３０，３１の励消磁は、吸
引ボックス２５における不動吸引孔２５１に吸引作用を
生じさせ、吸引ボックス２４における不動吸引孔２４１
の吸引作用を停止させる。The tip P1 of the material P to be printed is the suction box 2
When it is arranged in the vicinity of just above the starting end of the immovable suction hole 251 in FIG. The controller 38 excites the electromagnetic opening / closing valve 31 and demagnetizes the electromagnetic opening / closing valve 30 in response to the input of the ON signal from the position detector 36. The excitation / demagnetization of the electromagnetic on-off valves 30 and 31 causes the immobile suction hole 251 in the suction box 25 to have a suction action, and the immobile suction hole 241 in the suction box 24.
Stop the suction action of.
【００２３】被印刷物Ｐの先端部Ｐ１が吸引ボックス２
６における不動吸引孔２６１の始端の直上付近に配置さ
れると、位置検出器３７が被印刷物Ｐの先端部Ｐ１の到
達を検出してＯＮ信号を制御装置３８に出力する。制御
装置３８は、位置検出器３７からのＯＮ信号の入力に応
答して、電磁開閉弁３２を励磁すると共に、電磁開閉弁
３１を消磁する。電磁開閉弁３１，３２の励消磁は、吸
引ボックス２６における不動吸引孔２６１に吸引作用を
生じさせ、吸引ボックス２５における不動吸引孔２５１
の吸引作用を停止させる。The tip P1 of the material P to be printed is the suction box 2
When the position detector 37 is arranged immediately above the starting end of the immovable suction hole 261 in FIG. The controller 38 responds to the input of the ON signal from the position detector 37 to excite the electromagnetic opening / closing valve 32 and demagnetize the electromagnetic opening / closing valve 31. Excitation / demagnetization of the electromagnetic on-off valves 31 and 32 causes a suction action in the stationary suction hole 261 in the suction box 26, and the stationary suction hole 251 in the suction box 25.
Stop the suction action of.
【００２４】搬送部１２が被印刷物Ｐを印刷部１３側へ
搬送すると、搬送部１２から印刷部１３側へ搬送された
被印刷物Ｐは、印刷シリンダ１５上の把持機構２２によ
り把持される。制御装置３８は、電磁開閉弁３２を励磁
してから所定時間後に制御装置３８の作動を停止すると
共に、電磁開閉弁３２を消磁する。前記所定時間は、被
印刷物Ｐが把持機構２２に把持されるまでに要する時間
よりも長くしてある。被印刷物Ｐが把持機構２２に把持
されたときにおいても、被印刷物Ｐは吸引ボックス２６
の上面全体に重合しており、吸引ボックス２６における
不動吸引孔２６１全体の吸引作用が可動吸引孔１９２を
介して被印刷物Ｐに波及している。When the transport unit 12 transports the printing material P to the printing unit 13 side, the printing material P transported from the transportation unit 12 to the printing unit 13 side is gripped by the gripping mechanism 22 on the printing cylinder 15. The control device 38 deactivates the electromagnetic opening / closing valve 32 while stopping the operation of the control device 38 after a predetermined time has passed after exciting the electromagnetic opening / closing valve 32. The predetermined time is set to be longer than the time required for the target P to be gripped by the gripping mechanism 22. Even when the printing target P is gripped by the gripping mechanism 22, the printing target P is sucked by the suction box 26.
Of the immobilization suction holes 261 in the suction box 26, and the suction action of the entire immovable suction holes 261 spreads to the printing material P via the movable suction holes 192.
【００２５】被印刷物Ｐが把持機構２２に把持された
後、スキージ１７が図示しない昇降機構の作動によって
印刷スクリーン１６１上に押接される。そして、把持機
構２２の把持作用によって被印刷物Ｐを支持した印刷シ
リンダ１５は、図示しない駆動機構によって図１の矢印
Ｒの方向に回転され、印刷枠１６は、図示しない駆動機
構によって図１の矢印Ｓの方向に水平移動される。これ
により被印刷物Ｐに対して印刷が行われる。印刷をされ
た被印刷物Ｐは、把持機構２２の把持作用から解放され
て排出部１４へと排出される。その後、印刷シリンダ１
５及び印刷枠１６が印刷開始前の初期位置に復帰する。After the material P to be printed is gripped by the gripping mechanism 22, the squeegee 17 is pressed against the printing screen 161 by the operation of the lifting mechanism (not shown). Then, the printing cylinder 15 supporting the printing object P by the gripping action of the gripping mechanism 22 is rotated in the direction of arrow R in FIG. 1 by the driving mechanism not shown, and the printing frame 16 is moved by the driving mechanism not shown in FIG. It is moved horizontally in the S direction. Thus, the printing material P is printed. The printed material P that has been printed is released from the gripping action of the gripping mechanism 22 and discharged to the discharge unit 14. Then the printing cylinder 1
5 and the print frame 16 are returned to the initial positions before the start of printing.
【００２６】第１の実施の形態では以下の効果が得られ
る。
（１−１）吸引ボックス２３〜２６は、被印刷物Ｐの移
動に合わせて順次吸引ポンプ３３に連通されると共に、
被印刷物Ｐの移動に合わせて順次吸引ポンプ３３への連
通を遮断される。従って、吸引ポンプ３３、電磁開閉弁
２９〜３２、吸引ボックス２３〜２６及び搬送ベルト１
９から構成される吸引手段の吸引対象領域は、被印刷物
Ｐの移動に合わせて吸引ボックス２３〜２６単位で被印
刷物Ｐの移動方向へ変更される。The following effects are obtained in the first embodiment. (1-1) The suction boxes 23 to 26 are sequentially communicated with the suction pump 33 according to the movement of the material P to be printed, and
As the material P to be printed is moved, the communication with the suction pump 33 is sequentially cut off. Therefore, the suction pump 33, the electromagnetic opening / closing valves 29 to 32, the suction boxes 23 to 26, and the conveyor belt 1
The suction target area of the suction means composed of 9 is changed in the moving direction of the print target P in units of suction boxes 23 to 26 in accordance with the movement of the print target P.
【００２７】吸引手段の吸引対象領域を被印刷物Ｐの移
動方向へ変更しない構成、つまり吸引ボックス２３〜２
６内を同時に負圧状態にする構成では、吸引対象領域
は、搬送ベルト１９の上側水平部１９１のほぼ全体とな
る。この場合の吸引対象領域と被印刷物Ｐとの重なり合
いは、被印刷物Ｐの移動位置に応じて変わり、被印刷物
Ｐに対する吸引対象領域の重なり割合が非常に小さくな
る場合がある。即ち、被印刷物Ｐと吸引対象領域との外
れ割合が非常に大きくなる場合がある。The suction target area of the suction means is not changed in the moving direction of the printing material P, that is, the suction boxes 23 to 2
In the configuration in which the inside of 6 is set to the negative pressure state at the same time, the suction target area is almost the entire upper horizontal portion 191 of the conveyor belt 19. In this case, the overlap between the suction target area and the print target P varies depending on the moving position of the print target P, and the overlap ratio of the suction target area to the print target P may be very small. That is, there is a case where the dislocation ratio between the material to be printed P and the suction target area becomes very large.
【００２８】吸引手段の吸引対象領域を被印刷物Ｐの移
動方向へ変更する構成は、被印刷物Ｐに対する吸引手段
の吸引対象領域の重なり割合を大きくする上で有効であ
る。被印刷物Ｐに対する吸引手段の吸引対象領域の重な
り割合が大きくなるほど、即ち、被印刷物Ｐと吸引対象
領域との外れ割合が小さくなるほど、吸引手段における
吸引効率が向上する。The configuration in which the suction target area of the suction means is changed in the moving direction of the printing material P is effective in increasing the overlapping ratio of the suction target area of the suction means to the printing material P. The larger the overlapping ratio of the suction target area of the suction means with respect to the printing material P, that is, the smaller the deviation ratio of the printing material P and the suction target area, the higher the suction efficiency of the suction means.
【００２９】（１−２）本実施の形態では、被印刷物Ｐ
は、負圧状態にある吸引ボックス２３〜２６の上面全体
と重合している。従って、吸引ポンプ３３の吸引作用が
非常に無駄なく被印刷物Ｐに波及し、吸引手段における
吸引効率が非常に高い。(1-2) In the present embodiment, the printing material P
Overlaps with the entire upper surfaces of the suction boxes 23 to 26 in the negative pressure state. Therefore, the suction action of the suction pump 33 spreads to the printed material P very efficiently, and the suction efficiency of the suction means is very high.
【００３０】（１−３）開閉変更制御手段としての制御
装置３８は、搬送部１２における被印刷物Ｐの移動に合
わせて、複数の吸引通路Ｌ１，Ｌ２，Ｌ３，Ｌ４のうち
のいずれか１つのみを選択して電磁開閉弁２９〜３２に
開放させる。複数の吸引通路Ｌ１，Ｌ２，Ｌ３，Ｌ４
は、搬送部１２における被印刷物Ｐの移動方向へ順次１
つのみ開放されて行く。電磁開閉弁２９〜３２は、吸引
ボックス２３〜２６内の圧力を大気圧と負圧とのいずれ
かに切り換え変更するための開閉手段として簡便であ
る。(1-3) The control device 38 as the opening / closing change control means, in accordance with the movement of the material P to be printed in the transport section 12, one of the plurality of suction passages L1, L2, L3, L4. Only the selected one is opened to the electromagnetic opening / closing valves 29-32. Multiple suction passages L1, L2, L3, L4
Is sequentially set in the moving direction of the print target P on the transport unit 12.
Only one goes open. The electromagnetic opening / closing valves 29 to 32 are simple as opening / closing means for switching and changing the pressure in the suction boxes 23 to 26 to either atmospheric pressure or negative pressure.
【００３１】（１−４）制御装置３８は、複数の吸引通
路Ｌ１，Ｌ２，Ｌ３，Ｌ４のうちのいずれか１つのみを
電磁開閉弁２９〜３２に開放させる対象を位置検出器３
４〜３７によって得られる位置検出情報に基づいて選択
する。位置検出器３４〜３７を用いて被印刷物Ｐの先端
部Ｐ１を検出する構成は、吸引ボックス２３〜２６の上
面全体が被印刷物Ｐにほぼ重合している状態で吸引ボッ
クス２３〜２６内を負圧状態にする上で好適である。(1-4) The control device 38 controls the position detector 3 to open the electromagnetic opening / closing valves 29 to 32 to only one of the plurality of suction passages L1, L2, L3 and L4.
Selection is made based on the position detection information obtained by 4-37. The configuration in which the tip end portion P1 of the print object P is detected by using the position detectors 34 to 37 has a negative inside of the suction boxes 23 to 26 in a state where the entire upper surfaces of the suction boxes 23 to 26 are substantially overlapped with the print object P. It is suitable for making a pressure state.
【００３２】本発明では以下のような実施の形態も可能
である。
（１）第１の実施の形態において、吸引ボックス２３〜
２６のうちの隣合う一対を同時に負圧状態にすること。The following embodiments are possible in the present invention. (1) In the first embodiment, the suction box 23 to
Put adjacent pairs of 26 into negative pressure state at the same time.
【００３３】（２）第１の実施の形態において、吸引ボ
ックス２３〜２６のうちの隣合う一対を負圧状態にした
後、これら隣り合う一対の吸引ボックスのうち、被印刷
物Ｐの移動方向とは反対側の吸引ボックスを大気圧にす
ること。(2) In the first embodiment, after the adjoining pair of the suction boxes 23 to 26 is placed in a negative pressure state, the moving direction of the printing material P in the adjoining pair of suction boxes is changed. Set the suction box on the opposite side to atmospheric pressure.
【００３４】（３）第１の実施の形態において、被印刷
物Ｐが自動供給装置１１によって搬送部１２上に供給さ
れた後、タイマを用いた時間制御によって電磁開閉弁２
９〜３２の励消磁を制御するようにすること。(3) In the first embodiment, after the material P to be printed is supplied onto the conveying section 12 by the automatic supply device 11, the electromagnetic on-off valve 2 is controlled by time control using a timer.
Control the excitation and demagnetization of 9 to 32.
【００３５】（４）第１の実施の形態における吸引ボッ
クス２３〜２６の個数を４個以外の複数個とすること。
（５）第１の実施の形態における搬送ベルト１９を複数
配列し、各搬送ベルト１９に対応して吸引手段を設ける
こと。(4) The number of suction boxes 23 to 26 in the first embodiment should be plural other than four. (5) A plurality of conveyor belts 19 according to the first embodiment are arranged, and suction means is provided corresponding to each conveyor belt 19.
【００３６】（６）第１の実施の形態において、吸引通
路Ｌ１，Ｌ２，Ｌ３，Ｌ４と吸引ポンプ３３とを単一の
ロータリバルブ機構で接続し、ロータリバルブの回転位
置を変更して吸引通路Ｌ１，Ｌ２，Ｌ３，Ｌ４のうちの
１つと吸引ポンプ３３とを連通した複数の状態から１つ
を選択するようにすること。(6) In the first embodiment, the suction passages L1, L2, L3, L4 and the suction pump 33 are connected by a single rotary valve mechanism, and the rotary position of the rotary valve is changed to change the suction passage. To select one from a plurality of states in which one of L1, L2, L3, and L4 is in communication with the suction pump 33.
【００３７】（７）第１の実施の形態における吸引ボッ
クス２３〜２６と同様の単一の吸引ボックスを被印刷物
Ｐの移動経路に沿って往復動可能に配設し、前記単一の
吸着ボックスによって被印刷物Ｐを直接吸着しながら前
記単一の吸引ボックスを移動させるようにすること。(7) A single suction box similar to the suction boxes 23 to 26 in the first embodiment is arranged so as to be reciprocable along the movement path of the material P to be printed, and the single suction box is provided. The single suction box is moved while directly sucking the printing material P by.
【００３８】前記した実施の形態から把握できる請求項
記載以外の発明について以下に記載する。
〔１〕請求項２及び請求項３のいずれか１項において、
前記開閉手段は、前記複数の吸引通路に１対１に対応し
て設けられた複数の電磁開閉弁であるシリンダ型スクリ
ーン印刷機。Inventions other than those described in the claims that can be grasped from the above-described embodiment will be described below. [1] In any one of claims 2 and 3,
The cylinder type screen printing machine, wherein the opening / closing means is a plurality of electromagnetic opening / closing valves provided in one-to-one correspondence with the plurality of suction passages.
【００３９】〔２〕請求項１において、前記搬送部は、
前記被印刷物の移動方向に沿って配設された搬送ベルト
を備え、前記吸引手段は、前記搬送ベルトの走行領域と
重なる不動吸引孔を有する複数の吸引ボックスと、前記
搬送ベルトに沿って前記搬送ベルトに設けられた複数の
可動吸引孔と、前記不動吸引孔に吸引作用を生じさせる
単一の吸引源とを備えており、前記吸引対象領域変更手
段は、前記吸引源と前記複数の吸引ボックスとを個別に
繋ぐ複数の吸引通路を開閉する開閉手段と、前記複数の
吸引通路のうちの隣り合う一対の吸引通路を選択して前
記開閉手段に開放させる開閉変更制御手段とを備えてい
る請求項１に記載のシリンダ型スクリーン印刷機。[2] In the first aspect, the conveying section is
A conveyor belt disposed along the moving direction of the material to be printed, wherein the suction means has a plurality of suction boxes having immovable suction holes that overlap a traveling area of the conveyor belt; and the conveyor along the conveyor belt. The belt includes a plurality of movable suction holes provided in the belt and a single suction source that causes the immovable suction hole to perform a suction action. The suction target area changing unit includes the suction source and the plurality of suction boxes. And an opening / closing change control means for selecting a pair of adjacent suction passages of the plurality of suction passages and opening the same to the opening / closing means. Item 2. A cylinder type screen printing machine according to Item 1.
【００４０】[0040]
【発明の効果】本発明では、被印刷物を吸着搬送するた
めの吸引手段を用いたシリンダ型スクリーン印刷機にお
ける吸引手段の吸引効率を向上し得るという優れた効果
を奏する。According to the present invention, there is an excellent effect that the suction efficiency of the suction means in the cylinder type screen printing machine using the suction means for sucking and conveying the material to be printed can be improved.
【図１】第１の実施の形態のシリンダ型スクリーン印刷
機の側面図。FIG. 1 is a side view of a cylinder type screen printing machine according to a first embodiment.
【図２】要部平面図。FIG. 2 is a plan view of a main part.
１２…搬送部。１５…印刷シリンダ。１６１…印刷スク
リーン。１９…搬送部１２を構成する搬送ベルト。１９
２…吸引手段を構成する可動吸引孔。２３，２４，２
５，２６…吸引手段を構成する吸引ボックス。２３１，
２４１，２５１，２６１…不動吸引孔。２９，３０，３
１，３２…吸引対象領域変更手段を構成する開閉手段と
しての電磁開閉弁。３３…吸引源としての吸引ポンプ。
３４，３５，３６，３７…開閉変更制御手段を構成する
位置検出手段としての位置検出器。３８…開閉変更制御
手段を構成する選択手段としての制御装置。Ｌ１，Ｌ
２，Ｌ３，Ｌ４…吸引通路。Ｐ…被印刷物。12 ... Transport section. 15 ... Printing cylinder. 161 ... Printing screen. 19: A conveyor belt that constitutes the conveyor unit 12. 19
2. A movable suction hole that constitutes a suction means. 23, 24, 2
5, 26 ... A suction box that constitutes a suction means. 231,
241, 251, 261 ... Immovable suction holes. 29, 30, 3
1, 32 ... Electromagnetic on-off valves as opening / closing means constituting the suction target area changing means. 33 ... A suction pump as a suction source.
34, 35, 36, 37 ... Position detectors as position detecting means constituting opening / closing change control means. 38 ... A control device as a selection unit that constitutes the opening / closing change control unit. L1, L
2, L3, L4 ... Suction passage. P ... Printed material.
Claims (3)
リーンとの間の被印刷物に印刷を行うシリンダ型スクリ
ーン印刷機において、 前記印刷シリンダに前記被印刷物を供給するための搬送
部で前記被印刷物を吸引する吸引手段と、 前記吸引手段の吸引対象領域を前記被印刷物の移動方向
へ変更するための吸引対象領域変更手段とを備え、 前記搬送部における前記被印刷物の移動に合わせて前記
吸引手段の吸引対象領域を前記被印刷物の移動方向へ変
更するようにしたシリンダ型スクリーン印刷機。1. A cylinder type screen printing machine for printing an object to be printed between a rotating printing cylinder and a moving printing screen, comprising: a transfer unit for supplying the object to be printed to the printing cylinder; Suction means for sucking, and a suction target area changing means for changing the suction target area of the suction means in the moving direction of the printed material, the suction means of the suction means in accordance with the movement of the printed material in the transport unit. A cylinder type screen printing machine in which a suction target area is changed in a moving direction of the printing material.
沿って配設された搬送ベルトを備え、前記吸引手段は、
前記搬送ベルトの走行領域と重なる不動吸引孔を有する
複数の吸引ボックスと、前記搬送ベルトに沿って前記搬
送ベルトに設けられた複数の可動吸引孔と、前記不動吸
引孔に吸引作用を生じさせる単一の吸引源とを備えてお
り、前記吸引対象領域変更手段は、前記吸引源と前記複
数の吸引ボックスとを個別に繋ぐ複数の吸引通路を開閉
する開閉手段と、前記複数の吸引通路のうちのいずれか
１つのみを選択して前記開閉手段に開放させる開閉変更
制御手段とを備えている請求項１に記載のシリンダ型ス
クリーン印刷機。2. The transport section includes a transport belt arranged along a moving direction of the material to be printed, and the suction means comprises:
A plurality of suction boxes having immovable suction holes that overlap the traveling area of the conveyor belt, a plurality of movable suction holes provided on the conveyor belt along the conveyor belt, and a single suction box that causes a suction action in the stationary suction hole. One suction source is provided, and the suction target area changing unit is configured to open and close a plurality of suction passages that individually connect the suction source and the plurality of suction boxes, and among the plurality of suction passages. The cylinder type screen printing machine according to claim 1, further comprising: an opening / closing change control unit that selects only one of the above and opens the opening / closing unit.
ける前記被印刷物の移動位置を検出する位置検出手段
と、前記複数の吸引通路のうちのいずれか１つのみを前
記開閉手段に開放させる対象を前記位置検出手段によっ
て得られる位置検出情報に基づいて選択する選択手段と
を備えている請求項２に記載のシリンダ型スクリーン印
刷機。3. The opening / closing change control means allows the opening / closing means to open only one of a plurality of suction passages and a position detecting means for detecting a moving position of the printing object in the transport section. The cylinder type screen printing machine according to claim 2, further comprising a selection unit that selects an object based on position detection information obtained by the position detection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002147719A JP2003341878A (en) | 2002-05-22 | 2002-05-22 | Cylinder type screen printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002147719A JP2003341878A (en) | 2002-05-22 | 2002-05-22 | Cylinder type screen printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003341878A true JP2003341878A (en) | 2003-12-03 |
Family
ID=29766650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002147719A Pending JP2003341878A (en) | 2002-05-22 | 2002-05-22 | Cylinder type screen printing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003341878A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007297215A (en) * | 2006-05-04 | 2007-11-15 | Heidelberger Druckmas Ag | Noninteger stream feeder for printed matter treating machine |
| JP2009143661A (en) * | 2007-12-12 | 2009-07-02 | Seiren Co Ltd | Inkjet recorder |
| JP2009280320A (en) * | 2008-05-20 | 2009-12-03 | Seiko Epson Corp | Conveying device, recording apparatus equipped with conveying device and conveying method for recording medium |
| JP2010064812A (en) * | 2008-09-09 | 2010-03-25 | Riso Kagaku Corp | Double-sided printing device |
| JP2016539878A (en) * | 2013-09-23 | 2016-12-22 | トレス アクティーゼルスカブ | Register control device and method for adjusting the device |
-
2002
- 2002-05-22 JP JP2002147719A patent/JP2003341878A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007297215A (en) * | 2006-05-04 | 2007-11-15 | Heidelberger Druckmas Ag | Noninteger stream feeder for printed matter treating machine |
| US8746674B2 (en) | 2006-05-04 | 2014-06-10 | Heidelberger Druckmaschinen Ag | Non-integer overlap feeder for machines processing printing materials |
| JP2009143661A (en) * | 2007-12-12 | 2009-07-02 | Seiren Co Ltd | Inkjet recorder |
| JP2009280320A (en) * | 2008-05-20 | 2009-12-03 | Seiko Epson Corp | Conveying device, recording apparatus equipped with conveying device and conveying method for recording medium |
| JP2010064812A (en) * | 2008-09-09 | 2010-03-25 | Riso Kagaku Corp | Double-sided printing device |
| JP2016539878A (en) * | 2013-09-23 | 2016-12-22 | トレス アクティーゼルスカブ | Register control device and method for adjusting the device |
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