EP0642923A1 - Siebdruckmaschine mit automatischer Saugvorrichtung zum Entfernen von Farbrückständen - Google Patents
Siebdruckmaschine mit automatischer Saugvorrichtung zum Entfernen von Farbrückständen Download PDFInfo
- Publication number
- EP0642923A1 EP0642923A1 EP94202586A EP94202586A EP0642923A1 EP 0642923 A1 EP0642923 A1 EP 0642923A1 EP 94202586 A EP94202586 A EP 94202586A EP 94202586 A EP94202586 A EP 94202586A EP 0642923 A1 EP0642923 A1 EP 0642923A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- screen
- suction
- 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
Links
- 238000007650 screen-printing Methods 0.000 title claims abstract description 12
- 238000007639 printing Methods 0.000 claims abstract description 28
- 238000003892 spreading Methods 0.000 claims abstract description 16
- 230000007480 spreading Effects 0.000 claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000000976 ink Substances 0.000 description 21
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
- B41F35/005—Cleaning arrangements or devices for screen printers or parts thereof for flat screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2235/00—Cleaning
- B41P2235/30—Recovering used solvents or residues
- B41P2235/31—Recovering used solvents or residues by filtering
Definitions
- the object of this invention is a silk-screen printing machine equipped with an automatic suction device for the complete removal of ink residue from the screen frame used in the printing of flat sheets such as sheets of glass, paper, fabric and the like.
- the so-called silk-screen process uses for the creation of images, lettering, patterns and the like on flat sheets of glass, paper and the like the transfer of inks whether black or coloured, which are spread on a mesh (screen) frame in which such mesh has openings for the passage of the ink arranged in such a way as to match the pattern or image to be printed on the flat sheet, placed in contact with a fixed supporting surface.
- the current silk-screen printing machines used to print flat media provide a fixed supporting structure with a flat surface on which is placed in a stable manner the medium to be printed and, above the latter, a perforated frame, normally termed the "screen or printing frame".
- a perforated frame normally termed the "screen or printing frame”.
- Above such screen frame is positioned a structure capable of being moved, parallel to the plane of the sheet to be printed, from one end of the frame to the opposite end and vice versa.
- Such structure carries an initial support, in the form of an arm, to the lower end of which is secured a squeegee used to spread the ink on the underlying frame, and a second supporting arm having at its lower end a doctor intended to force the ink, previously spread by the squeegee on the screen, through the latter so as to print the underlying sheet.
- the supports or arms of the spreading squeegee and of the doctor are capable of being moved in opposition to one another according to a direction perpendicular to the printing plane and in both senses, in order to make possible an initial outward stroke parallel to the printing plane with the squeegee lowered into contact with the screen and the doctor raised, and a second return stroke with the squeegee raised end the doctor lowered, by which means printing is achieved.
- the use of such known silk-screen printing machines poses in practice a number of serious disadvantages, especially in the printing of peripheral strips of sheets of gloss, for which special arrangements are required in order to carry out printing in a fully correct manner.
- such type of printing requires that the surface of the screen whose perimeter determines the printing of the edge strip shall be smaller than the surface of the sheet of glass to be printed; in other words the area of the sheet of glass should always be smaller than the area of the screen so as to leave an empty strip between the part to which ink is applied and the corner of the sheet.
- a further disadvantage typical of silk-screen printing machines is constituted by the ready clogging of the screen mesh due to impurities present in the ink and/or deposited on the said screen.
- a machine for the silk-screen printing of flat sheets of glass or the like comprising a supporting structure (1) capable of moving parallel to the printing plane of a frame and equipped with a spreading squeegee and a printing doctor, both capable of moving in a direction perpendicular to the plane of the frame and independently of one another, comprising a device with automatic action for the removal of ink residue from such screen frame and consisting of at least one suction unit integrally secured to such movable structure and capable of moving in a perpendicular direction with respect to such screen frame simultaneously with such spreading squeegee, the suction nozzle of such unit being connected to a suction header and positioned between such doctor and squeegee, according to the direction of travel thereof, so as to make possible the continuous suction of the ink residue and of any impurities liable to clog the screen during any spreading movement, the stroke of such suction unit being set to a length at least equal to the longitudinal dimension of the frame for the removal of any in
- such device is also made for such device to be capable of being raised and lowered from/to the frame by means of a rod guided by a slide or the like, operated by pneumatic or like means, such rod and such slide being preferably tilted with respect to the plane vertical to the printing plane.
- such screen frame is larger in size than the flat sheet to be printed.
- the machine according to the invention provides for the suction nozzle of such suction unit to have transverse dimensions at least equal to the width of the screen frame.
- the machine according to the invention comprises a silk-screen printing machine of known type with which is associated a suction device with the aim of being able to print in particular sheets of glass with a perfectly treated edge, without necessitating accurate centring between the impression of the screen and the underlying sheet of glass.
- such silk-screen printing machine comprises a fixed base plane 1, on which is positioned a sheet of glass 2 to be printed, and a screen 3 capable of being placed in contact with the upper surface of the sheet to be printed, on which is arranged in a known manner an impression to be printed over the whole or part of the surface of the sheet 2.
- Such machine furthermore comprises a structure 4, located above printing frame 3, which is capable of being moved in two senses parallel to screen frame 3, which structure supports two arms 5 and 6 capable of moving in two senses in a direction perpendicular to the printing plane and independently of one another, via appropriate racks 5a and 6a respectively, operated by appropriate pinions or gearwheels 5b and 6b.
- a bent squeegee 8 intended to spread the ink on screen 3 after being lowered into contact with the latter and providing, during an initial movement, the outward stroke of structure 4 (arrow A in fig. 1).
- a shaped component 7 constituting the printing doctor after being lowered into contact with the screen and providing, during a second movement, the return stroke of structure 4 (arrow R in fig. 2).
- the suction device according to the invention is comprised of a supporting am 11 substantially parallel to the printing plane and made integral, via its end, with such movable structure 4.
- the arrangement of the various parts is such that doctor 7 always remains interposed, in the direction of travel, between suction nozzle 14 and spreading squeegee 8.
- the device described above is furthermore equipped with means of control with programmed action capable of bringing about its lowering and raising strokes simultaneously with those of spreading squeegee 8 and independently of the means of lowering and/or raising of doctor 7. Furthermore, because the function of suction unit 10 is that of removing the ink residue which, after each printing stroke, remains on the mesh of frame 3 exceeding the surface of underlying sheet 2 to be printed, as well as the impurities or the like present on the frame, the presence of such filter within suction duct 15 makes possible the continuous retention thereof avoiding discharge to the atmosphere.
- the suction unit/squeegee assembly is then made to move over the screen frame to enable suction nozzle 14 to clean the surface of the screen while squeegee 8 spreads the ink.
- the movement is stopped after squeegee 8 has overshot end 2a of sheet 2 so as to overshot with certainty the peripheral edge of the sheet to be printed.
- suction unit 10-14 and squeegee 8 are raised and printing doctor 7 is lowered onto the screen and made to move over the latter in the opposite direction to that of movement of squeegee 8 (fig. 2).
- suction device combined with such spreading squeegee makes it possible in practice to spread the ink beyond the periphery of the sheet and thus reliably print the peripheral edge thereof.
- the possibility of extending the ink beyond the effective dimensions of the sheet provides the advantage of obtaining perfect printing of the edge thereof even if the sheet is not perfectly centred on the impression to be printed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Manufacturing Of Printed Wiring (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI931985A IT1272629B (it) | 1993-09-14 | 1993-09-14 | Macchina per serigrafia con dispositivo automatico aspirante di asportazione di residui di inchiostro |
ITMI931985 | 1993-09-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0642923A1 true EP0642923A1 (de) | 1995-03-15 |
EP0642923B1 EP0642923B1 (de) | 1999-05-19 |
Family
ID=11366901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94202586A Expired - Lifetime EP0642923B1 (de) | 1993-09-14 | 1994-09-08 | Siebdruckmaschine mit automatischer Saugvorrichtung zum Entfernen von Farbrückständen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0642923B1 (de) |
AT (1) | ATE180212T1 (de) |
DE (1) | DE69418552T2 (de) |
ES (1) | ES2131154T3 (de) |
IT (1) | IT1272629B (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0699526A1 (de) * | 1994-08-10 | 1996-03-06 | Hiruta Kengo | Siebdruckvorrichtung |
EP0838979A1 (de) * | 1996-10-02 | 1998-04-29 | Matsushita Electric Industrial Co., Ltd. | Vorrichtung und Verfahren zum Reinigen von Druckmasken |
EP0901904A1 (de) * | 1997-09-05 | 1999-03-17 | Ianua S.p.A | Siebdruckmaschine mit einer verbesserten Vorrichtung zum Saugen von überschüssiger Farbe |
ES2156495A1 (es) * | 1998-07-28 | 2001-06-16 | Godino Creacion Y Diseno S L | Equipo para el serigrafiado de superficies planas automatizado. |
ITUD20090153A1 (it) * | 2009-09-03 | 2011-03-04 | Applied Materials Inc | Racla per la stampa serigrafica su un substrato o un supporto di stampa |
CN106079856A (zh) * | 2016-07-15 | 2016-11-09 | 上海光和光学制造大丰有限公司 | 一种印刷机 |
JP2016196101A (ja) * | 2015-04-02 | 2016-11-24 | パナソニックIpマネジメント株式会社 | スクリーン印刷機 |
CN110843323A (zh) * | 2019-11-27 | 2020-02-28 | 中航三鑫太阳能光电玻璃有限公司 | 一种丝印网版堵墨的在线清理装置 |
CN111942001A (zh) * | 2020-08-24 | 2020-11-17 | 吉安丽姝科技有限公司 | 一种丝网印刷机 |
JP2021062518A (ja) * | 2019-10-11 | 2021-04-22 | パナソニックIpマネジメント株式会社 | スクリーン印刷装置およびスクリーン印刷方法 |
CN112695347A (zh) * | 2020-12-18 | 2021-04-23 | 贵阳铝镁设计研究院有限公司 | 一种铝用气动刮平吸嘴 |
CN117549663A (zh) * | 2024-01-12 | 2024-02-13 | 苏州捷卡精密工业制造有限公司 | 一种气动式大尺寸印刷机 |
JP7556892B2 (ja) | 2019-06-13 | 2024-09-26 | イリノイ トゥール ワークス インコーポレイティド | はんだペーストビード回収システム及び方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108704813B (zh) * | 2018-08-07 | 2021-07-13 | 王照云 | 用于led灯加工的锡膏涂覆装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR736897A (fr) * | 1931-05-14 | 1932-11-30 | Système permettant de maintenir propres les gabarits et, le cas échéant, de récup'rer la liqueur tinctoriale, dans les machines utilisées pour l'impression, par aspersion de nappes de tissu ou l'équivalent | |
US3302564A (en) * | 1963-07-19 | 1967-02-07 | Bradford Dyers Ass Ltd | Stencil-printing machine |
FR2517254A1 (fr) * | 1981-11-30 | 1983-06-03 | Ppg Industries Inc | Dispositif et procede d'impression d'un dessin sur un support |
EP0152156A2 (de) * | 1984-02-13 | 1985-08-21 | Toshin Kogyo Co. Ltd. | Verfahren und Einrichtung zum Waschen einer Siebschablone in einer Flachsiebdruckmaschine |
EP0511883A1 (de) * | 1991-03-23 | 1992-11-04 | Saint-Gobain Vitrage | Siebdruckverfahren und Vorrichtung zum Drucken einer Dekorschicht an Glasscheiben |
US5197384A (en) * | 1990-05-25 | 1993-03-30 | Hitachi Techno Engineering Co., Ltd. | Screen printer |
-
1993
- 1993-09-14 IT ITMI931985A patent/IT1272629B/it active IP Right Grant
-
1994
- 1994-09-08 DE DE69418552T patent/DE69418552T2/de not_active Expired - Lifetime
- 1994-09-08 EP EP94202586A patent/EP0642923B1/de not_active Expired - Lifetime
- 1994-09-08 AT AT94202586T patent/ATE180212T1/de not_active IP Right Cessation
- 1994-09-08 ES ES94202586T patent/ES2131154T3/es not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR736897A (fr) * | 1931-05-14 | 1932-11-30 | Système permettant de maintenir propres les gabarits et, le cas échéant, de récup'rer la liqueur tinctoriale, dans les machines utilisées pour l'impression, par aspersion de nappes de tissu ou l'équivalent | |
US3302564A (en) * | 1963-07-19 | 1967-02-07 | Bradford Dyers Ass Ltd | Stencil-printing machine |
FR2517254A1 (fr) * | 1981-11-30 | 1983-06-03 | Ppg Industries Inc | Dispositif et procede d'impression d'un dessin sur un support |
EP0152156A2 (de) * | 1984-02-13 | 1985-08-21 | Toshin Kogyo Co. Ltd. | Verfahren und Einrichtung zum Waschen einer Siebschablone in einer Flachsiebdruckmaschine |
US5197384A (en) * | 1990-05-25 | 1993-03-30 | Hitachi Techno Engineering Co., Ltd. | Screen printer |
EP0511883A1 (de) * | 1991-03-23 | 1992-11-04 | Saint-Gobain Vitrage | Siebdruckverfahren und Vorrichtung zum Drucken einer Dekorschicht an Glasscheiben |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0699526A1 (de) * | 1994-08-10 | 1996-03-06 | Hiruta Kengo | Siebdruckvorrichtung |
EP0838979A1 (de) * | 1996-10-02 | 1998-04-29 | Matsushita Electric Industrial Co., Ltd. | Vorrichtung und Verfahren zum Reinigen von Druckmasken |
US5976269A (en) * | 1996-10-02 | 1999-11-02 | Matsushita Electric Industrial Co., Ltd. | Printing mask cleaning apparatus and method |
EP0901904A1 (de) * | 1997-09-05 | 1999-03-17 | Ianua S.p.A | Siebdruckmaschine mit einer verbesserten Vorrichtung zum Saugen von überschüssiger Farbe |
US6186063B1 (en) | 1997-09-05 | 2001-02-13 | Ianua S.P.A. | Screen printing machine with improved device for aspirating excess ink |
ES2156495A1 (es) * | 1998-07-28 | 2001-06-16 | Godino Creacion Y Diseno S L | Equipo para el serigrafiado de superficies planas automatizado. |
ITUD20090153A1 (it) * | 2009-09-03 | 2011-03-04 | Applied Materials Inc | Racla per la stampa serigrafica su un substrato o un supporto di stampa |
JP2016196101A (ja) * | 2015-04-02 | 2016-11-24 | パナソニックIpマネジメント株式会社 | スクリーン印刷機 |
CN106079856A (zh) * | 2016-07-15 | 2016-11-09 | 上海光和光学制造大丰有限公司 | 一种印刷机 |
JP7556892B2 (ja) | 2019-06-13 | 2024-09-26 | イリノイ トゥール ワークス インコーポレイティド | はんだペーストビード回収システム及び方法 |
JP2021062518A (ja) * | 2019-10-11 | 2021-04-22 | パナソニックIpマネジメント株式会社 | スクリーン印刷装置およびスクリーン印刷方法 |
CN110843323A (zh) * | 2019-11-27 | 2020-02-28 | 中航三鑫太阳能光电玻璃有限公司 | 一种丝印网版堵墨的在线清理装置 |
CN110843323B (zh) * | 2019-11-27 | 2023-11-21 | 海控三鑫(蚌埠)新能源材料有限公司 | 一种丝印网版堵墨的在线清理装置 |
CN111942001A (zh) * | 2020-08-24 | 2020-11-17 | 吉安丽姝科技有限公司 | 一种丝网印刷机 |
CN111942001B (zh) * | 2020-08-24 | 2021-11-16 | 吉安市惠安建材有限公司 | 一种丝网印刷机 |
CN112695347A (zh) * | 2020-12-18 | 2021-04-23 | 贵阳铝镁设计研究院有限公司 | 一种铝用气动刮平吸嘴 |
CN112695347B (zh) * | 2020-12-18 | 2022-08-26 | 贵阳铝镁设计研究院有限公司 | 一种铝用气动刮平吸嘴 |
CN117549663A (zh) * | 2024-01-12 | 2024-02-13 | 苏州捷卡精密工业制造有限公司 | 一种气动式大尺寸印刷机 |
CN117549663B (zh) * | 2024-01-12 | 2024-03-12 | 苏州捷卡精密工业制造有限公司 | 一种气动式大尺寸印刷机 |
Also Published As
Publication number | Publication date |
---|---|
IT1272629B (it) | 1997-06-26 |
ITMI931985A0 (it) | 1993-09-14 |
ES2131154T3 (es) | 1999-07-16 |
DE69418552D1 (de) | 1999-06-24 |
ATE180212T1 (de) | 1999-06-15 |
DE69418552T2 (de) | 1999-09-16 |
EP0642923B1 (de) | 1999-05-19 |
ITMI931985A1 (it) | 1995-03-14 |
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