EP0349883A2 - Méthode et dispositif pour le transfert d'un milieu - Google Patents

Méthode et dispositif pour le transfert d'un milieu Download PDF

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Publication number
EP0349883A2
EP0349883A2 EP89111646A EP89111646A EP0349883A2 EP 0349883 A2 EP0349883 A2 EP 0349883A2 EP 89111646 A EP89111646 A EP 89111646A EP 89111646 A EP89111646 A EP 89111646A EP 0349883 A2 EP0349883 A2 EP 0349883A2
Authority
EP
European Patent Office
Prior art keywords
unit
web
screen
printing
squeegee
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.)
Granted
Application number
EP89111646A
Other languages
German (de)
English (en)
Other versions
EP0349883B1 (fr
EP0349883A3 (en
Inventor
Gerhard Klemm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cessione gerhard Klemm
Original Assignee
KLEMM GERHARD MASCHF
Gerhard Klemm Maschinenfabrik & Co Firma GmbH
KLEMM GERHARD MASCHFAB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KLEMM GERHARD MASCHF, Gerhard Klemm Maschinenfabrik & Co Firma GmbH, KLEMM GERHARD MASCHFAB filed Critical KLEMM GERHARD MASCHF
Publication of EP0349883A2 publication Critical patent/EP0349883A2/fr
Publication of EP0349883A3 publication Critical patent/EP0349883A3/de
Application granted granted Critical
Publication of EP0349883B1 publication Critical patent/EP0349883B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0845—Machines for printing webs with flat screens
    • B41F15/0854—Machines for printing webs with flat screens with a stationary squeegee and a moving screen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0845—Machines for printing webs with flat screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/20—Supports for workpieces with suction-operated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B41F15/423—Driving means for reciprocating squeegees

Definitions

  • the invention relates to a method and an apparatus for applying media to a web of material guided step-by-step from roll to roll by means of a flatbed screen printing machine with screen stencil and squeegee, the discontinuous movement of the web taking place in two phases and consisting of a main preferred phase and a correction phase Control of registration marks exists.
  • Such a method and such a device is already known from DE-OS 31 03 421. It has the advantage over other previously known machines that an exact print job can be carried out in a flat bed, without bending the material to be printed.
  • the disadvantage of the known method and the known device is that no significant speed increases can be achieved with this machine.
  • the web is advanced by means of a discontinuously operating feed roller, which can also be heated at the same time.
  • the discontinuous drive is controlled in two phases and consists of a main preferred phase and a relatively time-consuming post-rotation phase, which is ended by a device for reading register marks or the like. Both movement phases are in the so-called presentation time. During printing However, the goods web always stands still.
  • a screen printing machine is also known - but which is not designed as a flat bed screen printing machine - but works with an impression cylinder, in which the main advantage of the web takes place during the printing process.
  • this machine it is possible to run the screen template back and forth above the impression cylinder with the squeegee stationary.
  • the feed knife and the movement of the screen template in the feed direction of the web can be used to correct the web to control the registration mark because there is no conclusion between the impression cylinder and the screen during the feed phase.
  • the invention is therefore based on the object of designing a flatbed screen printing machine in such a way that, on the one hand, a continuous web of material guided from roll to roll can be printed discontinuously in the flatbed, and that, on the other hand, the downtimes of the web as described, for example, in the subject of DE-OS 31 03 421 are available, are shortened rapidly, respectively. are practically absent, so that the advantages of both systems combine.
  • the decisive factor is that it is not only the correction path that is carried out in the creep speed - in order to control the registration mark - which, despite the short preferred length, takes a lot of time, in some cases even 30% and more, in movement areas that are necessary anyway are, but also the main preference during the print job is done in a flat bed.
  • the squeegee can stand still in order to then move the screen stencil with the printing table as a closed unit, but on the other hand there can also be the option, as shown in the second example, of forming the screening and printing table again as a unit, but additionally that Squeegee mechanism to be arranged in the unit in a movable manner.
  • the correction phase namely the last short preferred length when the registration mark is actuated, be moved into a working phase in which the doctor blade works from the doctoring unit, that is to say that the screen is not pushed through, but that the entire unit is moved, that is, moves back in order to then be able to make the main advantage of the web with the unit during the printing phase.
  • doctor blade which alternately serves as a pressure doctor blade and also as a doctor blade, depending on the position of the same doctor blade, or whether two doctor blades are arranged in the doctor blade unit, is initially to be seen secondarily.
  • the web can be corrected in the longitudinal direction during the so-called flooding.
  • This correction can be carried out with an additional vacuum transport roller arranged upstream of the goods transport path, which also holds the web in place when the unit of screen and flat bed returns, so that it cannot be pulled back by the frictional resistance of the printing table.
  • the device is suitable for label printing and the like, it is more important in the present case that thicker materials, for example thicker films which are not to be bent, can be printed with the subject matter of the invention.
  • the printing takes place in an absolutely stretched position of the web.
  • the advantage is to be seen in the fact that there can be no processing errors with regard to the pressure, since the flat bed enables a more precise printing than the roller pressure on a counter-pressure cylinder.
  • the device is therefore suitable for all prints that require very high dimensional accuracy, especially printed circuits.
  • the printed circuit boards can first be made by screen printing, then punched out and possibly equipped with electrical components.
  • the flatbed screen printing machine according to the invention is particularly well suited for the last-mentioned fields of application.
  • feed and discharge means In the case of materials which are difficult to bend and cannot easily be guided over feed and feed rollers, other feed and discharge means must be selected upstream and downstream of such a device according to the invention. are fed in and discharged in tabular form, as is already known for strong plastic materials.
  • the supply and discharge is therefore variable.
  • a screen printing machine is shown very schematically, namely a flat bed screen printing machine, the application unit consisting of the screen stencil 1 and a printing table 2 serving as a flat bed, which are connected to one another by any preferably releasable fastenings 3.
  • the screen template 1 and the printing table 2 can also be fastened together on a carriage which is useful for the back and forth movement. Simple angle irons 3 are shown. These fastenings can also be designed as clips or pawls. How the screen template 1 and the printing table 2 are connected to one another is therefore secondary, since the most varied of attachments medium or movement connections are conceivable and possible.
  • the application station also includes a doctor blade 4, consisting of a doctor blade 41 and a pressure doctor blade 42.
  • a doctor blade 4 consisting of a doctor blade 41 and a pressure doctor blade 42.
  • a single doctor blade which is controlled in such a way that it works on the one hand as a doctor blade, i.e. is not heavily used and is moved firmly onto the screen stencil in the printing stroke, in order then to serve as a printing squeegee.
  • the doctor blade 4 is arranged stationary.
  • the movement mechanisms for the serving squeegee 41 and the printing squeegee 42 are not shown, since they can also be designed to be variable.
  • the entire unit 12 can be moved back and forth in the arrow directions A - B and can be guided on guides 5 which preferably engage and hold the printing table on the right and left.
  • the printing table 2 is connected via a hose 7 to a suction unit 70, for example a suction pump, so that it is ensured that the web of material to be printed adheres firmly to the printing table during the printing stroke and is really carried along in the movement of the application unit. If the web 8 is to be transported separately, the suction pressure must be switched off. This is done via a push button switch 71 which is assigned to the crank mechanism 60. During the pressure stroke, there is suction current on the underside of the web 8, while in the preferred correction phase the web can slide freely over the surface of the printing table 2 without being hindered by the suction stream.
  • a suction unit 70 for example a suction pump
  • the web 8 is preferably fed via a vacuum inlet pipe 9 with side adjusters for web width control.
  • a vacuum conveyor in the front area roller 90.
  • This vacuum transport roller has in its interior a suction segment 91, over which the roller jacket 92 is guided.
  • the roller can be constructed in a known manner, according to DE-PS 29 43 894.
  • the main movement of the vacuum transport roller 90 can be removed from the movement of the printing table 2, for example via a toothed rack 20 with a return stroke freewheel, which is in a corresponding gear of the vacuum transport roller 90 combs.
  • the vacuum transport roller 90 has an only indicated additional drive 92 for its roller shell 93.
  • the web of material 8 is to be transported in two work steps, namely in a large work step that takes place during the print job, namely in the printing phase in which it has its main advance path and in a correction phase in which it experiences the correction preference.
  • the correction preference is limited and stopped by a registration mark reading device 10, which can have any structure.
  • the operation of the device is shown in Figure 2 in steps 2 a - 2 e. Since the material web is to be preferred in constantly the same work steps, namely the main advance path and the correction preference, the registration mark reading device 10 is arranged in a stationary manner. The doctor blade 4 is also stationary in this embodiment of Figures 1 and 2.
  • Work station 2 a shows the beginning of the presentation phase.
  • the serving squeegee 41 has received the ink pool on the screen 11 of the screen stencil 1 and places the paint or another application medium of any kind, for example a chemical or a plastic, on the same with the screen lifted off, while the entire unit 12 in the direction of arrow B against the feed direction Goods web 8, a full working step is retracted.
  • the web 8 is fed out by the preferred roller 90, which in the exemplary embodiment shown is a vacuum transport roller forms, is preferred and that is a minimal correction step until the registration mark reading or control device 10 stops the advance of the web, ie stops the additional drive 92 of the vacuum transport roller 90 or the advance roller 90. This is the position shown in step 2 b.
  • the doctor blade is then changed or, in the case of only a single doctor blade, pressed into the printing position thereof.
  • the screen 11 of the screen template 1 is pressed down, as shown in position 2 c, and the squeegee 42 receives an end with the surface of the printing table 2 via the screen 11.
  • the screen template 1 and printing table 2 are then moved as a unit in the direction of arrow A in this final connection and in the step between the representation 2 c and 2 d, this moves the web a whole working step forward, see arrow A. This is the main preferred phase or the main advance path during the printing phase. What has not yet been done is the correction. This follows in step 2a, step 2e corresponding to step 2a.
  • the vacuum in the printing table 2 is first switched off so that the web can be freely transported in advance and the additional drive 92 for the feed roller or the vacuum transport roller 90 is switched on; the correction phase is thus initiated and is ended via the registration mark reading device 10, which can be of any design.
  • the diagram shown is variable and, as already mentioned, the printing table and screen frame which form the unit 12 can have a separate carriage for the reciprocating movement.
  • the vacuum transport roller 90 can be driven with the rack shown from the printing table in order to run forward synchronously with the table movement.
  • the synchronous operation can also be represented differently technically.
  • the return must be designed as a freewheel when a rack 20 is arranged, namely when the entire unit during the correction phase against the feed direction of the Material web is moved in the direction of arrow B.
  • the vacuum transport roller or the preferential roller 90 which is designed as a vacuum transport roller, is not absolutely necessary for the actual function of the device since the vacuum table can carry out the transport of the material web. If the suction pressure is not sufficient to take the web correctly with it, driver clips can be arranged on the printing table or on the unit. However, these are technical variants, it is crucial that the entire unit 12 with the doctor blade 42 practically forms a bracket which sticks to the web and entrains it in the main advance path in the direction of arrow A, so that the web runs or has to run during the printing phase .
  • doctor blade 4 is mounted in the unit 12 in a self-movable manner and runs in a rail 40.
  • a special doctor drive 43 is shown in FIG.
  • the unit which is connected to one another exactly as shown in the exemplary embodiment in FIGS. 1 and 2, runs in the direction of arrow B of the web feed opposite direction, but with the squeegee 41 is lowered and moves faster than the unit in the direction of arrow B to bring the squeegee 42 into the starting position.
  • the color is thus applied in station 4b; there is a change in the squeegee unit, the squeegee moves down, which can all be done in a previously known manner.
  • Position 4 c has been reached.
  • the entire unit then travels in the direction of arrow A, the squeegee mechanism overrunning the movement in the direction of arrow A of the unit 12 by its special drive 43, ie it moves faster in the direction of goods transport than the unit itself.
  • the working speed of the device can be increased, since each individual work step is shortened by the accommodating of the doctor unit within the unit.
  • the relatively sluggish unit consisting of the printing table and screen template, can be guided quietly because the more flexible squeegee mechanism, which does not transport so much mass, can run at higher speeds.
  • the web of material in the unit is gripped practically like pliers by the pressure of the printing squeegee, is advanced during printing, so that the plier-like entrainment rhythm is obtained here.
  • FIGS. 2a-2e and 4a-4e each show the start for submission, the end of the submission phase, the start for printing, the end of the printing phase and again the start for submission.
  • the correction phase takes place in slow speed. In high-speed, preference can be given to the movement paths of the table and also beyond the correction phase.
  • the system is essentially intended for smaller formats, where the highest possible speeds are important. Despite the high speeds, e.g. absolute accuracy of pressure is maintained for switching pressures. During the print job, however, it is possible to work very precisely and precisely in both exemplary embodiments, even if the web of material is thereby given its main advantage.
  • connection of the screen template 1 to the printing table 2 can be made not only from a mechanical solution but also from a movement solution, e.g. drive technology, electromechanical, hydraulic, mechanical or in another way e.g. Computer-controlled, which also represented an electromechanical solution.
  • a movement solution e.g. drive technology, electromechanical, hydraulic, mechanical or in another way e.g. Computer-controlled, which also represented an electromechanical solution.
  • the exemplary embodiments shown are not to be understood as restrictive. What is essential is that the web 12 is carried along by the unit 12 and flooded when the color is presented.
  • the main advantage can also be taken from a front roller with a slip clutch, namely from a roller with a separate drive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Printing Methods (AREA)
EP89111646A 1988-07-08 1989-06-27 Méthode et dispositif pour le transfert d'un milieu Expired - Lifetime EP0349883B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3823200A DE3823200C1 (fr) 1988-07-08 1988-07-08
DE3823200 1988-07-08

Publications (3)

Publication Number Publication Date
EP0349883A2 true EP0349883A2 (fr) 1990-01-10
EP0349883A3 EP0349883A3 (en) 1990-03-14
EP0349883B1 EP0349883B1 (fr) 1994-03-30

Family

ID=6358275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111646A Expired - Lifetime EP0349883B1 (fr) 1988-07-08 1989-06-27 Méthode et dispositif pour le transfert d'un milieu

Country Status (5)

Country Link
US (3) US4964335A (fr)
EP (1) EP0349883B1 (fr)
JP (1) JPH02131982A (fr)
CA (1) CA1316389C (fr)
DE (2) DE3823200C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444189A1 (de) * 1994-08-12 1996-02-22 Leipold Xaver F Gmbh & Co Kg Durch- oder Siebdruckmaschine
EP0775055B1 (fr) * 1994-08-12 1998-11-11 F. XAVER LEIPOLD GMBH & CO. KG Machine d'impression serigraphique ou a pochoir
CN110588142A (zh) * 2019-08-31 2019-12-20 赵世英 一种智能印刷机

Families Citing this family (29)

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DE4037678A1 (de) * 1990-11-27 1992-06-04 Klemm Gerhard Maschfab Siebdruckmaschine
JP2614946B2 (ja) * 1991-05-27 1997-05-28 日立テクノエンジニアリング株式会社 スクリーン印刷機
US5792268A (en) * 1993-07-02 1998-08-11 Sci Systems, Inc. Printered circuit board screen printer vacuum holding apparatus
US5522929A (en) * 1994-08-29 1996-06-04 Erdmann; Gunter Apparatus for material deposition for circuit board manufacture
US5553536A (en) * 1994-10-03 1996-09-10 Van Os Enterprises Screen printing apparatus with vacuum conveyor belt
US5595113A (en) * 1994-10-25 1997-01-21 M & R Printing Equipment, Inc. Sequencing system for printing machine
DE4443574A1 (de) * 1994-12-07 1996-06-13 Gerhard Klemm Bogenflachbettsiebdruckmaschine und Siebdruckverfahren
US5738904A (en) * 1995-06-30 1998-04-14 Hti Engineering Inc. Method and apparatus for variable speed material deposition
JP3431729B2 (ja) * 1995-07-12 2003-07-28 松下電器産業株式会社 回路基板の製造方法及び製造装置
US5711217A (en) * 1995-09-18 1998-01-27 Ser-Tek Systems, Inc. Vector screen printing method and apparatus
US5925187A (en) * 1996-02-08 1999-07-20 Speedline Technologies, Inc. Apparatus for dispensing flowable material
US5956929A (en) * 1997-04-18 1999-09-28 I.D. Images, Inc. Packaging system for the tube stock continuous film media
IT1294648B1 (it) * 1997-09-05 1999-04-12 Ianua Spa Macchina per serigrafia con dispositivo perfezionato di aspirazione di inchiostro in eccesso.
US5927193A (en) * 1997-10-16 1999-07-27 International Business Machines Corporation Process for via fill
US5901646A (en) * 1997-10-21 1999-05-11 Preco Industries, Inc. Screen printing machine having three axes screen registration with shiftable support vacuum table for web
US6453810B1 (en) 1997-11-07 2002-09-24 Speedline Technologies, Inc. Method and apparatus for dispensing material in a printer
US5947022A (en) * 1997-11-07 1999-09-07 Speedline Technologies, Inc. Apparatus for dispensing material in a printer
US6324973B2 (en) 1997-11-07 2001-12-04 Speedline Technologies, Inc. Method and apparatus for dispensing material in a printer
CN100489513C (zh) * 2002-10-30 2009-05-20 因弗内斯医疗有限公司 制造电化学传感器的方法
DE10344454B4 (de) * 2003-09-25 2006-04-27 Mühlbauer Ag Klebstoffauftragevorrichtung für flexible bandartige Trägersubstrate
US7441499B2 (en) * 2004-05-14 2008-10-28 Reefdale Pty Ltd Screen printer print arm
JP2006305851A (ja) * 2005-04-28 2006-11-09 Minami Kk スクリーン印刷装置
JP4926567B2 (ja) * 2006-06-29 2012-05-09 ヤマハ発動機株式会社 印刷装置および印刷方法
US20080163770A1 (en) * 2006-12-28 2008-07-10 Bien Trong Bui Image printing apparatus for small areas
US8216415B2 (en) * 2009-09-04 2012-07-10 Quinn Reed M Manufacture of kinesiology tape
CN102700238A (zh) * 2012-06-06 2012-10-03 卢宇男 一种承印物印刷机及其工作方法
USD765389S1 (en) 2014-12-30 2016-09-06 Medline Industries, Inc. Dispenser
US11008127B2 (en) 2016-10-31 2021-05-18 Zing-Pac, Inc. Floating platen system
DE102018102749B4 (de) * 2018-02-07 2019-12-05 db-matik AG Siebdruckvorrichtung für eine Rolle-zu-Rolle Anlage

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US3577914A (en) * 1969-11-28 1971-05-11 Heinrich Ronge Screen printing machine employing a reciprocating printing and feed plate
US3848528A (en) * 1972-09-25 1974-11-19 Moffitt R Co Multi-station printing system
DE3103421A1 (de) * 1981-02-02 1982-09-02 Gerhard Ing.(grad.) 4800 Bielefeld Klemm Siebdruckmaschine
DE3207403A1 (de) * 1982-03-02 1983-09-08 Rudolf 7129 Brackenheim Fleischle Antriebsvorrichtung fuer die rakelbewegung in siebdruckmaschinen

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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US3577914A (en) * 1969-11-28 1971-05-11 Heinrich Ronge Screen printing machine employing a reciprocating printing and feed plate
US3848528A (en) * 1972-09-25 1974-11-19 Moffitt R Co Multi-station printing system
DE3103421A1 (de) * 1981-02-02 1982-09-02 Gerhard Ing.(grad.) 4800 Bielefeld Klemm Siebdruckmaschine
DE3207403A1 (de) * 1982-03-02 1983-09-08 Rudolf 7129 Brackenheim Fleischle Antriebsvorrichtung fuer die rakelbewegung in siebdruckmaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444189A1 (de) * 1994-08-12 1996-02-22 Leipold Xaver F Gmbh & Co Kg Durch- oder Siebdruckmaschine
EP0775055B1 (fr) * 1994-08-12 1998-11-11 F. XAVER LEIPOLD GMBH & CO. KG Machine d'impression serigraphique ou a pochoir
DE4444189C2 (de) * 1994-08-12 1999-09-09 Leipold Xaver F Gmbh & Co Kg Durch- oder Siebdruckmaschine
CN110588142A (zh) * 2019-08-31 2019-12-20 赵世英 一种智能印刷机
CN110588142B (zh) * 2019-08-31 2021-08-06 湖北金三峡印务有限公司 一种使用智能印刷机的印刷方法

Also Published As

Publication number Publication date
JPH02131982A (ja) 1990-05-21
CA1316389C (fr) 1993-04-20
US5050497A (en) 1991-09-24
DE58907328D1 (de) 1994-05-05
US4964335A (en) 1990-10-23
EP0349883B1 (fr) 1994-03-30
US5050496A (en) 1991-09-24
DE3823200C1 (fr) 1990-03-08
EP0349883A3 (en) 1990-03-14

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