EP0177391B1 - Siebdruckmaschine - Google Patents

Siebdruckmaschine Download PDF

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Publication number
EP0177391B1
EP0177391B1 EP85401733A EP85401733A EP0177391B1 EP 0177391 B1 EP0177391 B1 EP 0177391B1 EP 85401733 A EP85401733 A EP 85401733A EP 85401733 A EP85401733 A EP 85401733A EP 0177391 B1 EP0177391 B1 EP 0177391B1
Authority
EP
European Patent Office
Prior art keywords
frame
screen
arm
shaft
fixed
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.)
Expired - Lifetime
Application number
EP85401733A
Other languages
English (en)
French (fr)
Other versions
EP0177391A1 (de
Inventor
Bernard David
Roger Tetard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0177391A1 publication Critical patent/EP0177391A1/de
Application granted granted Critical
Publication of EP0177391B1 publication Critical patent/EP0177391B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/06—Movable stops or gauges, e.g. rising and falling front stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0804—Machines for printing sheets
    • B41F15/0813—Machines for printing sheets with flat screens
    • B41F15/0818—Machines for printing sheets with flat screens with a stationary screen and a moving squeegee

Definitions

  • the present invention relates to a screen printing machine using a screen, traditionally made of silk, for distributing ink on the surface of an object to be printed.
  • a screen traditionally made of silk
  • the latter is in this case a sheet, preferably of paper, which is placed flat behind the screen and held against it by a printing plate.
  • GB-A-2,019,319 discloses a screen printing machine where these three elements are arranged horizontally one below the other. For this they all take support at their four corners on four vertical uprights fixed on a base. This link only allows the vertical translation of the elements.
  • the printing plate can be lowered to allow the object to be printed to be placed, then be positioned again so that the surface of the object to be printed is in contact with the screen. This freedom of vertical translation is still very limited and the amounts are rather a hindrance to the introduction of paper under the screen.
  • the screen printing machines disclosed in the patents CH-A-460,055 and US-A-4,404,903 improve the accessibility of the plate by providing, along one of its sides and parallel to it, an axis of rotation on which can rotate the screen. When the latter is raised, the plate is perfectly cleared on three of its faces. The sheet is then placed without hindrance. Then simply fold the screen on the tray so that the sheet is in the desired position.
  • the universal screen printing machine referred to in patent FR-A-1,089,974 keeps the principle of an axis of rotation away from the printing elements. It also improves the accessibility of the screen itself by mounting the scraping device on an arm pivoting about an axis also distant from the printing elements. Unlike the other documents already cited, the doctor blade can therefore be lifted from the surface of the screen to the point of releasing it widely.
  • the machine with its three components which are roughly articulated in the manner of three pages of the same book and of which only the parts furthest from the axes of rotation actually participate in printing, thus makes it possible to easily check the condition of the parts and their relative positioning before the actual printing.
  • the present invention goes even further in the accessibility of the various elements. It provides in fact the possibility of completely dismantling the screen. Likewise, the lapping and scraping device can be removed. In addition, the margining and the establishment of the sheet to be printed are very easy, the margining can be done by a seated operator.
  • a machine comprising a first frame, a printing plate fixed in the extension of arms mounted to pivot around a first horizontal axis linked to the first frame of the machine, a removable screen, horizontal and fixed in working condition, placed above said printing plate and against which the upper face of said printing plate can be applied, a scraping and lapping device mounted at the end of an arm pivoting around a second horizontal axis and parallel to said first axis said second axis being carried by a carriage movable in translation, by the fact that it further comprises an auxiliary frame bearing on the first frame, said auxiliary frame serving as a support for the screen and to the carriage which is movable parallel to the first and to the second axis, said second axis being offset towards the front of the machine relative to the first axis and serving as an articulation in the arm, in one point t located between the ends of said arm.
  • the screen printing machine includes takes a frame 1 carrying at its rear part an axis 2 which serves as a pivot for a printing plate 3.
  • On the frame 1 are fixed four vertical candles 8 carrying at their upper end a handling ball 9 and, preferably, adjustable in height.
  • On these balls rests an auxiliary frame 10 formed of two slides 11 of U-shaped section, joined to one another by crosspieces 12.
  • One or more springs 13 whose ends are hooked to the crosspieces 12 and to the frame 1 maintain the frame 10 resting on the balls 9.
  • Two adjustable stops 14 provided at the rear of the frame 1 limit the longitudinal movement of the frame 10 under the effect of the springs 13.
  • Another adjustable stop 15 provided on one of the sides of the frame 1 determines the transverse position of the frame 10.
  • a carriage 16 is slidably mounted on the slides 11 by means of rollers 17, of horizontal axis, which bear on the upper wing of the slides, on either side of this wing.
  • the carriage is further guided transversely by rollers 18, of vertical axis, which bear on a flat 19 fixed to one of the slides, on either side of this flat.
  • a control jack not shown, connects this carriage to the frame 10.
  • a telescopic scraper and topping arm 20 is pivotally mounted at 21, at an intermediate point of its length, on the carriage 16 and carries a scraper and topping device generally designated by the reference 22.
  • a rubber bellows 23 or a diaphragm vessel is interposed between the rear end of the arm 20 and the carriage. It is thus possible to adjust the scraping and topping pressures by operating a button on the pressure reducer and reading them directly on a pressure gauge.
  • a printing frame 26 carrying a not shown printing canvas is fixed by clamping means 27 placed in the vicinity of the side from the frame located towards the machine to an angle 28 secured to the rod 25, so that the axis of this rod is in the plane of the fabric.
  • clamping means 29 On the opposite side of the frame 10 are provided clamping means 29 which allow the printing frame 26 to be held in place. The latter is therefore easily removable, while being fixed during printing.
  • the printing plate and the printing frame 26 are cantilevered in front of the machine; the scraper device 22 is also cantilevered. This arrangement leaves total access to the three sides of the printing frame 26, which allows the printed sheet to be stored and removed without obstacles.
  • the cantilever mounting of the scraping device 22 avoids the presence of a slideway before the eyes of the feeder or above the printing frame.
  • the printing plate 3 comprises an angle 30 forming a belt and extending on the front face and on the lateral faces of the plate; this belt is extended rearwards by two arms 31 fixed to the axis 2. It is closed on the side of this axis by a U-shaped profile 32, of the same height as it.
  • the space delimited by the belt and the front face of the profile contains a honeycomb 33 (Fig. 1) on the upper and lower faces of which thin sheets 34 and 35 are bonded; the upper sheet 34 is pierced with holes 36.
  • This honeycomb is pierced right through by rows of holes 37 which form, in line with the holes 36, channels opening into the interior space 38 of the profile 32; this space forms a collector and is connected to a suction duct 39.
  • Margins are provided on one of the longitudinal edges of the printing plate 3 and on one of its lateral edges. These shims are shown schematically at 40 in Figure 3.
  • the wedge wedge 41 is slidably mounted in a slide 42 fixed to the vertical wing of the belt 30 by bolts 43.
  • a lever 45 On the slide 42 is articulated at 44 a lever 45 which is connected by a return spring 46 and a cylinder 47 to a lever 48 fixed on the slide.
  • the lever 45 carries a finger 49 engaged in a slot 50 transversely elongated so that the jack 47 allows the wedge 41 to slide in its slide.
  • the wedge 41 has, on its longitudinal face turned towards the slide, a longitudinal groove 51 in which is housed with play a longitudinal blade 52 slightly curved so that its upper end projects horizontally relative to the wedge 41 (see Figure 5) ; this blade is held on the wedge, at one of its ends, by a screw 53 which gives it a slight freedom of movement.
  • a bracket 54 thin enough to have a certain elasticity is fixed by the screws 55 on the outer longitudinal face of the wedge 41.
  • This bracket comprises a micro-contact 56; screws 57 fix this micro-contact on the bracket at the same time as a small block 58 in a semi-rigid material, for example in polyamide resin.
  • the block 58 is drilled and tapped with a roughing tap, so as to be able to receive a screw 59 perpendicular to the wedge 41, by lightly tightening on its thread.
  • a finger 60 passing through a hole 61 in the shim 41, is interposed between the blade 52 and the microswitch control button 56.
  • the position of the micro-contact 56 is adjusted using the screw 59 so that it establishes the contact 0.1 to 0.2 mm before the blade 52 erases it in its groove 51.
  • the micro-contact 56 is interposed on the circuit of the machine cycle start contact. The start cycle will only be triggered if the sheet to be printed is properly adjusted to the nearest 0.1 or 0.2mm.
  • a doctor blade 84 can pivot coaxially to the tube 80.
  • two brackets 85 are fixed to the lower part of the doctor blade, on the back of the latter, their spacing being equal to the length of the tube 80.
  • These brackets are perforated, as indicated in 86, and a key 87 is threaded simultaneously into the holes of the brackets and into the tube 80.
  • the tube 78 is integral with a plate 88 slightly bent and directed upwards.
  • a rod 89 the end of which is threaded passes through a hole in the plate 88 and carries at its threaded end a knurled adjusting nut 90.
  • the other end of the rod 89 is integral with a tube 91 which is substantially parallel to the tube 80 and in which is engaged a finger or key 92 fixed on the upper face of the doctor blade 84, parallel to the latter.
  • a helical spring 93 threaded on the rod 89, is interposed between the tube 91 and the plate 88. The operation of the nut 90 thus makes it possible to adjust the orientation of the doctor blade 84.
  • the layer support 63 is extended downwards by a plate 94 on the rear face of which a tube 96 is welded.
  • This tube is mounted oscillating on an axis 95 integral with a plate 97 on which two tubes 98 and 99 forming bearings.
  • the end of the axis 95 is threaded and receives a nut 100, a lock nut 101 and Belleville washers 102.
  • a coating blade 103 is fixed to the plate 97 by means substantially similar to those ensuring the fixing of the scraper blade 84: a key 104 passes through both the bearing 98 and two brackets 105 fixed to the blade. It also carries a finger or key 106 engaged in the bearing 99.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)

Claims (7)

1. Siebdruckmaschine mit einem ersten Rahmen (1), einer in der Verlängerung der um eine erste Achse (2) schwenkbar angebrachten Arme (31) befestigten Druckplatte (3), welche horizontal an dem ersten Rahmen (1) der Maschine befestigt ist, einer Schablone (26), die herausnehmbar horizontal und in dem Arbeitszustand unbeweglich ist, wobei sie über der Druckplatte (3) angeordnet und die Oberseite der Druckplatte gegen sie anlegbar ist, einer Abstreicher- und Oberziehereinrichtung (22), die schwenkbar um eine zweite, horizontal und parallel zu der ersten Achse (2) verlaufende Achse (21) an dem Ende eines Armes (20) angebracht ist, wobei die zweite Achse von einem translatorisch beweglichen Schlitten (16) getragen ist, dadurch gekennzeichnet, daß sie außerdem einen Hilfsrahmen (10) aufweist, der sich auf dem ersten Rahmen (1) abstützt, wobei der Hilfsrahmen (10) zum Tragen der Schablone (26) und des Schlittens (16) dient, der parallel zu der ersten und zweiten Achse (2, 21) beweglich ist, wobei die zweite Achse (21) in bezug auf die erste Achse (2) gegen den Vorderteil der Maschine verschoben ist und zur Anlenkung des Armes (20) in einem zwischen den Enden des Armes gelegenen Punkt dient.
2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die Oberseite der Druckplatte (3) von kleinen Löchern (36) durchsetzt ist, die über zu der Oberseite parallele Kanäle (37) mit einer Luftansaugleitung (39) kommunizieren.
3. Maschine nach irgendeinem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Druckplatte (3) einziehbare Randkeile (41) aufweist, wobei jeder Randkeil in einer Führungsschiene (42) verschiebbar angebracht ist, die an der Druckplatte (3) befestigt ist und auf seiner gegen das Innere der Platte gedrehten Seite eine längliche Nut (51) aufweist, in der ein längliches Plättchen (51) mit Spiel eingelegt ist, das derart gebogen ist, daß sein oberes Ende in Bezug auf den Keil horizontal einen Vorsprung bildet und das plättchen (52) einen Mikroschalter (56) betätigt, der auf dem Keil befestigt ist.
4. Maschine nach irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Schablone (26) über eine horizontale, mit dem Hilfsrahmen verbundene Stange (25) an dem Hilfsrahmen (10) befestigt ist, die ebenso wie die Einspannelemente (27, 28, 29) vorragt.
5. Maschine nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die zweite Achse (21) auf dem Schlitten (16) in Nähe der Schablone (26) angebracht ist, wogegen sich der Arm (20) von ihm zu der gegenüberliegenden Seite erstreckt, wobei er die Abstreicher- und Oberziehereinrichtung (22) an einem Ende trägt, und von einer Betätigungseinrichtung (23) betätigt wird, die aus einem Blasebalg aus Kautschuk oder einem Membranhohlgefäß besteht.
6. Maschine nach irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Abstreicher- und Oberziehereinrichtung einen Abstreicherträger (62) und einen Überzieherträger (63) aufweist, die kippbar auf dem Arm (20) angebracht sind, sowie eine Betätigungswinde (69), die von dem Arm (20) getragen ist, und die es ermöglicht, einen der Träger niedersenken zu lassen, während sich der andere anhebt und umgekehrt.
7. Maschine nach irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Hilfsrahmen (10) über vier höhenverstellbare Stützen auf dem Rahmen (1) ruht und daß er dank einer Feder (13) und der Anschläge (14, 15) auf dem Rahmen (1) festgehalten ist.
EP85401733A 1984-09-11 1985-09-06 Siebdruckmaschine Expired - Lifetime EP0177391B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8414227 1984-09-11
FR8414227A FR2570022B1 (fr) 1984-09-11 1984-09-11 Machine de serigraphie

Publications (2)

Publication Number Publication Date
EP0177391A1 EP0177391A1 (de) 1986-04-09
EP0177391B1 true EP0177391B1 (de) 1990-06-27

Family

ID=9307781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401733A Expired - Lifetime EP0177391B1 (de) 1984-09-11 1985-09-06 Siebdruckmaschine

Country Status (5)

Country Link
US (1) US4696228A (de)
EP (1) EP0177391B1 (de)
DE (1) DE3578404D1 (de)
ES (1) ES8701611A1 (de)
FR (1) FR2570022B1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738836A1 (de) * 1987-11-16 1989-05-24 Kammann Maschf Werner Verfahren und vorrichtung zum bedrucken von bahnfoermigem material
US4920878A (en) * 1988-05-03 1990-05-01 Harco Graphic Products Inc. Screen printer with plater sifting structure
US5239923A (en) * 1992-03-01 1993-08-31 Harco Graphic Products, Inc. Screen printer
US5284189A (en) * 1992-03-16 1994-02-08 Printron, Inc. Conductive ink packaging for printed circuit board screen printing operations
JP2951105B2 (ja) * 1992-05-08 1999-09-20 株式会社メニコン コンタクトレンズ用マーキング装置
JP3066186B2 (ja) * 1992-06-03 2000-07-17 理想科学工業株式会社 押圧印刷装置
FR2693442B1 (fr) * 1992-07-07 1994-09-16 Bernard David Dispositif de butée de positionnement, notamment pour machine de façonnage et/ou d'impression de feuilles.
FR2693445B1 (fr) * 1992-07-07 1994-09-16 Silium Perfectionnements aux machines d'impression notamment aux machines de sérigraphie.
JPH08216492A (ja) * 1995-02-10 1996-08-27 Riso Kagaku Corp 押圧印刷装置
JP3484562B2 (ja) * 1998-03-26 2004-01-06 ミナミ株式会社 スクリーン印刷方法及び被印刷板の保持台
US5970874A (en) * 1998-06-26 1999-10-26 Bill; Ralph J. Machine for forming improved graphic images on substrates
US6817288B2 (en) * 2002-11-13 2004-11-16 Jerry L. Flatt Screen-printing apparatus with pneumatic screen frame clamps
JP2007160659A (ja) * 2005-12-13 2007-06-28 Matsushita Electric Ind Co Ltd スクリーン印刷装置及びスクリーン印刷方法
US20090095174A1 (en) * 2007-10-11 2009-04-16 Roberts Jr Robert Glyn Controlled pressure silk screening device
US8109312B2 (en) * 2007-12-29 2012-02-07 Michelin Recherche Et Technique S.A. Tire patch applicator
TW201315322A (zh) * 2011-09-16 2013-04-01 Askey Technology Jiangsu Ltd 佈錫於印刷電路板用的固定框及組合式固定裝置
DE102015212515A1 (de) * 2015-07-03 2017-01-05 Thieme Gmbh & Co. Kg Siebdruckvorrichtung und Verfahren zum Siebdrucken
CN108944003A (zh) * 2018-09-12 2018-12-07 石家庄胜辉机械科技有限公司 给纸机及丝网印刷设备

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US1815021A (en) * 1930-05-31 1931-07-14 Bland Louis Power silk screen process printer and coater
US2383947A (en) * 1943-04-28 1945-09-04 Owens Illinois Glass Co Decorating machine
US2610579A (en) * 1949-12-09 1952-09-16 Charles A Wing Silk screen printing press
FR1089974A (fr) * 1953-06-16 1955-03-25 Machine universelle pour l'impression par le procédé à l'écran de soie sur des objets de toutes formes
US2764084A (en) * 1954-01-18 1956-09-25 Joseph E Podgor Squeegee supporting device for stencil printing machine
US2991711A (en) * 1954-09-24 1961-07-11 Frank Sche Eisenwerke Ag Fully automatic silk-screen printing machine
US2845858A (en) * 1956-06-14 1958-08-05 Sidney W Denley Silk screen printing machine
CH460055A (de) * 1967-02-02 1968-07-31 F Forslund Charles Siebdruckvorrichtung
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US3795189A (en) * 1972-09-28 1974-03-05 Precision Screen Machines Screen printing machine with oval rail for indexing pallets
SU590158A1 (ru) * 1976-03-10 1978-01-30 Предприятие П/Я А-7555 Печатное устройство дл трафаретных машин
GB2019319B (en) * 1978-04-07 1982-03-31 Rotadex Ind Ltd Screen printing apparatus
SE426926B (sv) * 1979-02-28 1983-02-21 Svecia Silkscreen Maskiner Ab Stenciltryckmaskin med materialtransportor
US4287826A (en) * 1979-03-30 1981-09-08 Brabec Michael W Method and apparatus for screen printing
US4349188A (en) * 1979-04-18 1982-09-14 Young William G Re-registering feeder and method of registering
IT1112725B (it) * 1979-04-24 1986-01-20 Argon Service Ltd Macchina da stampa serigrafica con pinze e piano scomponibile da stampa
US4282805A (en) * 1979-05-21 1981-08-11 American Screen Printing Equipment Company Drive for printing elongated articles
US4246866A (en) * 1979-07-30 1981-01-27 Libbey-Owens-Ford Company Apparatus for applying a pattern on a substrate
US4268545A (en) * 1979-07-30 1981-05-19 Libbey-Owens-Ford Company Method of and apparatus for printing a pattern on a substrate
US4404903A (en) * 1979-12-14 1983-09-20 Cronin John V Automated screener
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US4407195A (en) * 1980-08-07 1983-10-04 Precision Screen Machines, Inc. Screen printing machine
US4409924A (en) * 1982-07-01 1983-10-18 National Semiconductor Corporation Self-adjusting plating mask
US4520726A (en) * 1982-10-18 1985-06-04 Societe D'exploitation Des Machines Dubuit Flat silk-screen printing machine with movable pivoted support
US4478142A (en) * 1984-01-13 1984-10-23 Christos Santorineos Balloon-printing apparatus with silk-screen

Also Published As

Publication number Publication date
US4696228A (en) 1987-09-29
EP0177391A1 (de) 1986-04-09
ES546839A0 (es) 1986-12-01
FR2570022A1 (fr) 1986-03-14
ES8701611A1 (es) 1986-12-01
FR2570022B1 (fr) 1988-09-23
DE3578404D1 (de) 1990-08-02

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