EP2380739B1 - Systeme de positionnement d'un stencil d'impression pour une unité d'impression sérigraphique - Google Patents

Systeme de positionnement d'un stencil d'impression pour une unité d'impression sérigraphique Download PDF

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Publication number
EP2380739B1
EP2380739B1 EP10004258.9A EP10004258A EP2380739B1 EP 2380739 B1 EP2380739 B1 EP 2380739B1 EP 10004258 A EP10004258 A EP 10004258A EP 2380739 B1 EP2380739 B1 EP 2380739B1
Authority
EP
European Patent Office
Prior art keywords
screen
movable part
drive
positioning arrangement
arrangement according
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.)
Not-in-force
Application number
EP10004258.9A
Other languages
German (de)
English (en)
Other versions
EP2380739B8 (fr
EP2380739A1 (fr
Inventor
Dieter Manz
Alexander Heim
Ulrich Schweitzer
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.)
Manz AG
Original Assignee
Manz Automation AG
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 Manz Automation AG filed Critical Manz Automation AG
Priority to EP10004258.9A priority Critical patent/EP2380739B8/fr
Priority to KR1020110037278A priority patent/KR20110118094A/ko
Priority to TW100113978A priority patent/TW201206713A/zh
Priority to CN201110107612.7A priority patent/CN102241185B/zh
Publication of EP2380739A1 publication Critical patent/EP2380739A1/fr
Application granted granted Critical
Publication of EP2380739B1 publication Critical patent/EP2380739B1/fr
Publication of EP2380739B8 publication Critical patent/EP2380739B8/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/36—Screens, Frames; Holders therefor flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/10—Screen printing machines characterised by their constructional features
    • B41P2215/11—Registering devices
    • B41P2215/112—Registering devices with means for displacing the frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/50—Screen printing machines for particular purposes

Definitions

  • the invention relates to a Siebpositionieran Aunt for positioning a screen in a screen printing unit according to the preamble of claim 1.
  • Such Siebpositionieran extract is for example from the DE 40 37 678 A1 and the US-A-6098539 known.
  • a substrate is positioned relative to the screen of a screen printing unit.
  • the positioning of the substrate is usually achieved by an adjustable substrate holder.
  • the substrates must be individually positioned and fixed on the adjustable substrate holders. This positioning of the substrates significantly reduces the throughput when printing on the substrates.
  • the DE 40 37 678 A1 discloses a wire positioning assembly for positioning a wire relative to the substrate.
  • the screen is mounted on a movable, driven by stepper motors slide, wherein the carriage is mounted on the stepper motors on a support frame.
  • Springs are stretched between the carriage and the support frame to ensure even pressure of the carriage on the stepper motors.
  • Stepper motors basically have a certain amount of play. The storage of the carriage on the support frame is therefore not backlash. The springs can only cause some compensation.
  • a Siebpositionieran extract which has a movable part and a fixed frame.
  • the movable part of a sieve In the movable part of a sieve is arranged.
  • On the movable part are also a plurality of curved rails for guiding Rollers arranged, wherein the rollers are rotatably mounted on the fixed frame.
  • a rotational movement of the movable part is made possible relative to the fixed frame.
  • the movable part can be fixed to the fixed frame.
  • the invention is the object of the invention to provide a Siebpositionier arrangement with which the positioning of the screen relative to the substrate can be performed without play and quickly.
  • a Siebpositionieran Aunt for positioning a screen of a screen printing unit, which has at least one movable part and at least one stationary part, wherein the screen on the movable part, which is adjustable relative to the stationary part via at least one adjustment, can be arranged, and the movable part is mounted on the stationary part via one or more flexible elements, wherein the movable part and the fixed part of the Siebpositionieran accent are designed monolithic.
  • the flexible elements are preferably designed to be elastic and can be realized for example by rods or webs.
  • the Siebpositionieran Aunt invention also has the advantage that at a given substrate position exact play-free positioning of the screen of a screen printing unit is made possible relative to the substrate.
  • the storage does not take place via a play-driven drive, but directly on the flexible, preferably elastic elements.
  • the provision caused by the storage compensates for any play of the adjusting means. In particular backlashes are avoided by such a storage realized by means of flexible elements.
  • the positioning accuracy the Siebpositionieran accent lies in the range of a few microns and below.
  • the movable part can be designed as a receptacle for a, preferably rigid, screen frame.
  • the screen frame can be attached to the moving part.
  • the sieve can be clamped directly in the movable part, so that the movable part represents the sieve frame.
  • a separate Siebrahrnen or a carriage as a support for a screen frame can be omitted.
  • the flexible elements can be bent and / or executed angled.
  • the flexible elements may be formed for example in the form of L-shaped webs.
  • portions of the flexible elements are parallel to the edges of the stationary and movable parts, thereby allowing a space-saving arrangement.
  • the resistance or the elasticity in each direction of movement is individually adjustable.
  • the movable part of the Siebpositionieran Aunt in a particular direction can be easily moved.
  • the height of the flexible elements may be greater than their width. Since the movable part of the Siebpositionieran himself will always follow the lowest resistance of the flexible elements in a positioning of a screen, such an embodiment movements of the movable part can be forced exclusively in a horizontal plane of the Siebpositionieran nie.
  • the flexible elements allow a torsionally rigid connection between the stationary and the movable part. On a support of the screen by other bearings or other supporting elements, such as ball-bearing slides or other movable receptacles for the screen or a screen frame, can be completely dispensed with by the warp-resistant storage.
  • the flexible elements are higher than they are wide, they have a high rigidity in a direction perpendicular to the direction of adjustment of the screen and can withstand particularly well the squeegee pressure applied to the screen.
  • individual flexible elements can also be designed in a different aspect ratio, for example in order to intentionally tilt the wire relative to the horizontal. As a result, for example, a doctor can be placed on a tilted down side and pulled to one side of the screen with the greatest distance from the substrate.
  • the movable part and the stationary part of the Siebpositionieran ever are designed monolithic.
  • the formed in the form of webs flexible elements between the movable part and the stationary part can then be easily prepared by recesses of the full material.
  • the Siebpositionieran whatsoever can be realized for example as a plate with milled, eroded or laser-machined slots, wherein the slots define the webs between the movable part and the stationary part of the Siebpositionieran nie.
  • the Siebpositionieran nie can be considered a monolithic Solid-state bearings are formed, the movement of which neither ball bearings nor rollers, rails or sliding surfaces are necessary.
  • the movable part is rather connected by fixed webs with the stationary part, but which can be deformed by the adjustment means in the elastic region.
  • At least one adjusting means of the Siebpositionieran Aunt comprises at least one drive.
  • the drive allows a fast and automated adjustment of the moving part of the Siebpositionieran Aunt and can be realized for example by a linear drive, a spindle drive or a stepper motor.
  • the movable part of the Siebpositionieran Aunt can be moved in different directions.
  • the sieve can be controlled in this way in one, two or three dimensions. After the positioning of a screen, the exact position of the screen is achieved relative to the substrate, this position can be kept simple by the combination of drive and flexible elements.
  • the drive can preferably be arranged on the stationary part of the Siebpositionieranssen.
  • the arrangement of the drive on the stationary part facilitates the maintenance of the drive and keeps the mass of the moving part to be moved as small as possible.
  • At least one drive is an eccentric drive, wherein the eccentric can act directly or indirectly on the movable part.
  • the use of eccentrics allows a highly accurate positioning, as well as a large backlash reduction of the movements of the drive on the moving part using fewer components.
  • the eccentric drive may be able to move the movable part linearly to the stationary part.
  • the movable part relative to the stationary part by two drives in a first direction and a drive in a direction perpendicular to the first direction to be designed to be movable.
  • Such an arrangement of the three drives at the same time linear movements and rotations for positioning of the screen are possible. This eliminates a complicated structure in which in addition to the devices for linear movement further mechanical means, such as additional pivot bearing, would have to be provided for rotating the movable part.
  • At least one drive arranged on the movable or stationary part is connected to a motion transmission element which acts on the respective other part.
  • the drive can be arranged in the outer region of the Siebpositionieran Aunt, which is both easy to build and easy to maintain.
  • a motion transmission element for example, a cable or a rod can be used. If the drive z. B. be performed by an eccentric drive, then the motion transmission element can be advantageously carried out much longer than the maximum movement of the eccentric to exert as little movement transversely to the intended adjustment to the moving part.
  • At least one motion transmission element has one or more tapers.
  • the tapers can accommodate unwanted movements transversely to the intended direction of adjustment, thus avoiding undesirable effects on the positioning of the screen.
  • at least one motion transmission element can be fastened to a projection of the movable and / or stationary part. The motion transmission element is thereby easily attachable to one of the parts.
  • At least one displacement measuring system can be provided for determining the position of the movable part with respect to the stationary part.
  • the displacement measuring system can be designed mechanically or without contact, but preferably in the form of an optical displacement measuring system.
  • the actual position of the screen while avoiding negative influences that may occur, for example, in the case of a displacement measuring system on the drive side be determined.
  • the relative position of movable and stationary part can be detected directly and not only indirectly, for. B. via a measuring system integrated in a drive.
  • At least one displacement measuring system is arranged on a projection of the movable and / or stationary part.
  • measurement data of the displacement measuring system can thus be directly attributed to movements of this motion transmission element, whereby a simple control of the movement is made possible.
  • Fig. 1 shows a Siebpositionieran Aunt 10, which includes a movable part 12 and a stationary part 14.
  • a screen frame for holding a screen 16 with a template or printing structure 18 is arranged on the movable part 12.
  • the movable part 12 is connected to the stationary part 14 by means of webs formed as flexible elements 20, 22, 24, 26.
  • the flexible elements are thereby produced by openings 28, 30, 32, 34 are introduced into a metal plate, in particular aluminum or steel plate.
  • the metal plate is divided into a stationary part 14 and movable part 12, wherein the parts 12, 14 are connected by the flexible members 20, 22, 24, 26.
  • the Siebpositionieran Aunt 10 is thus monolithic, ie stationary part 14 and movable part 12 are materially connected to each other and made in one piece.
  • the flexible elements 20, 22, 24, 26 are thus defined by the remaining material between the movable part 12 and the stationary part 14.
  • a first flexible element 20 remains between a first opening 28 and a second opening 30.
  • the second opening 30 and a third opening 32 form the second flexible element 22.
  • the third opening 32 defines with a fourth opening 34 a third flexible element 24.
  • a fourth flexible member 26 is formed through the fourth opening 34 and the first opening 28. Because of the introduced at right angles openings 28, 30, 32, 34 and the flexible elements 20, 22, 24, 26 are formed at right angles.
  • the movable part 12 and the stationary part 14 of the Siebpositionieran angel 10 can thus be prepared easily and inexpensively from a single plate substantially by right-angled openings 28, 30, 32, 34.
  • the height of the flexible elements 20, 22, 24, 26 defined by the material thickness of the parts 12, 14 is greater than the width thereof, d. H. the plate is thicker than the width of the flexible elements 20, 22, 24, 26 defined by the openings 28, 30, 32, 34.
  • the movable part 12 of the sieve positioning assembly 10 is thereby substantially movable in a horizontal plane and substantially perpendicular to the plane of the drawing immobile. Due to the immobility of the movable part 12 perpendicular to the plane no further support of the movable part 12 is necessary. At the same time a high precision in maintaining the position of the screen is achieved by its immobility perpendicular to the drawing plane.
  • the substrate For printing on a substrate, for example a solar cell, the substrate is prepositioned on a conveyor belt (not shown) moved under the Siebpositionieran Aunt 10. The substrate is held by a Vakuumansaugung on the conveyor belt.
  • the movable part 12 For positioning the screen 16 with respect to the substrate, the movable part 12 is now positioned according to a previously detected substrate position or position of structures of the substrate. The positioning is performed by adjusting means comprising an X1 drive 38, an X2 drive 40 and a Y drive 41.
  • the X1 drive 38 and the X2 drive 40 move the movable part 12 in the X direction, ie in the direction of the double arrow 42, while the Y drive 41 shifts the movable part 12 in the Y direction, ie in the direction of the double arrow 43 , If the X1 drive 38 is not moved synchronously with the X2 drive 40, the movable part 12 is rotated. By the combination of linear motion and rotation of the movable member 12, the screen 16 can be accurately positioned relative to a structure on the substrate. By the flexible elements 20, 22, 24, 26, the movable part 12 can be moved without play by means of the drives 38, 40, 41 and then also held backlash in its correct position.
  • the drives 38, 40, 41 are designed as eccentric drives whose eccentric movements are transmitted via respectively associated motion transmission elements in the form of rods to the movable part 12.
  • the X1 drive 38 comprises an electric motor (not shown) with a drive shaft 44, which is non-rotatably fitted to an insert 46 designed as an eccentric.
  • the insert 46 is in turn rotatably connected to the inside of a drive bearing 48.
  • the drive bearing 48 is designed as a ball bearing and connected on its outside by a clamp connection 50, which includes a clamping screw 52, with a motion transmission element 54.
  • clamp connection 50 is designed as a part of the motion transmission member 54.
  • the clamp connection 50 and the motion transmission element 54 may also be designed in several parts.
  • the motion transmission element 54 Upon rotation of the drive shaft 44, the motion transmission element 54 is displaced in the direction of the double arrow 42.
  • the motion transmission element 54 is in turn connected to the movable part 12, so that the movable part 12 is also displaced by the X1 drive 38 in the direction of the double arrow 42.
  • the motion transmission element 54 moves in a recess 56 of the stationary part 14 at the same height perpendicular to the plane of the drawing with the movable part 12. This prevents the introduction of a force perpendicular to the plane of the drawing on the movable part 12.
  • the effects in the direction of the double arrow 43 on the movable member 12 are negligibly small.
  • the movement in the direction of the double arrow 43 takes place primarily on the drive bearing 48, d. H. far away from the point of application of the motion transmission element 54 on the movable part 12.
  • unwanted movements can be compensated by a corresponding counter-control of the other drives.
  • the taper 58 allows deformation of the motion-transmitting system 54 in the double-headed direction 43. Movements in the double arrow direction 43 are thus largely kept away from the movable part 12.
  • an X1 optical displacement measuring system 62 is attached to a first projection 60 of the movable part 12.
  • the optical X1 displacement measuring system 62 can determine, for example by a camera measurement or an interferometric measurement, the exact distance of the movable part 12 to the stationary part 14.
  • the X2 drive 40 and its transmission of motion to the movable part 12 is constructed analogously to the previously described motion transmission of the X1 drive 38.
  • the Y-drive 41 analogous to the arrangement for the X1 movement, via an eccentric arrangement with a motion transmission element 64 and a screw 66 by means of two fastening screws 68, 70 with the movable part 12 connected.
  • the motion transmission element 64 has a taper 72. Both the movement of the Y-drive and the movement of the X2 drive are monitored by path measuring systems (not shown).
  • the displacement measuring systems can be used to detect deviations, for example small deviations by the eccentric drive or vibrations of the Siebpositionieran Aunt 10 and send to a control device which is able to control the deviations by driving the drives 38, 40, 41 to compensate.

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

Claims (14)

  1. Ensemble (10) de positionnement d'écran pour le positionnement d'un écran (16) d'une unité de sérigraphie, qui comprend au moins une partie mobile (12) et au moins une partie fixe (14), l'écran (16) pouvant être disposé sur la partie mobile (12) qui peut être réglée par le biais d'au moins un moyen de réglage par rapport à la partie fixe (14), la partie mobile (12) étant supportée sur la partie fixe (14) par le biais d'un ou de plusieurs éléments flexibles (20, 22, 24, 26), caractérisé en ce que la partie mobile (12) et la partie fixe (14) de l'ensemble (10) de positionnement d'écran sont réalisées de façon monolithique.
  2. Ensemble de positionnement d'écran selon la revendication 1, caractérisé en ce que la partie mobile (12) est réalisée en tant que logement pour un cadre d'écran.
  3. Ensemble de positionnement d'écran selon la revendication 1, caractérisé en ce qu'au moins un élément (20, 22, 24, 26) présente la forme d'une barrette.
  4. Ensemble de positionnement d'écran selon la revendication 1, 2 ou 3, caractérisé en ce que les éléments flexibles (20, 22, 24, 26) sont courbés et/ou coudés.
  5. Ensemble de positionnement d'écran selon une des revendications précédentes, caractérisé en ce que la hauteur des éléments flexibles (20, 22, 24, 26) est plus grande que leur largeur.
  6. Ensemble de positionnement d'écran selon une des revendications précédentes, caractérisé en ce qu'au moins un moyen de déplacement de l'ensemble de positionnement d'écran comprend au moins un entraînement (38, 40, 41).
  7. Ensemble de positionnement d'écran selon la revendication 6, caractérisé en ce qu'au moins un entraînement (38, 40, 41) est disposé sur la partie fixe (14).
  8. Ensemble de positionnement d'écran selon la revendication 6 ou 7, caractérisé en ce qu'au moins un entraînement (38, 40, 41) est un entraînement à excentrique, l'excentrique engrenant indirectement ou directement sur la partie mobile (12).
  9. Ensemble de positionnement d'écran selon une des revendications précédentes, caractérisé en ce que la partie mobile (12) peut être déplacée par rapport à la partie fixe (14) par deux entraînements (38, 40) dans une première direction (42) et par un entraînement (41) dans une direction perpendiculairement à la première direction (42).
  10. Ensemble de positionnement d'écran selon une des revendications précédentes, caractérisé en ce qu'au moins un entraînement (38, 40, 41) disposé sur la partie mobile (12) ou sur la partie fixe (14) est relié à un élément de transmission de mouvement (54, 64) qui engrène sur l'autre partie (12, 14) respective.
  11. Ensemble de positionnement d'écran selon la revendication 10, caractérisé en ce qu'au moins un élément de transmission de mouvement (54, 64) présente un ou plusieurs rétrécissements (58, 72).
  12. Ensemble de positionnement d'écran selon la revendication 10 ou 11, caractérisé en ce qu'au moins un élément de transmission de mouvement (54, 56) est fixé sur une saillie (60) de la partie mobile (12) et/ou de la partie fixe (14).
  13. Ensemble de positionnement d'écran selon une des revendications précédentes, caractérisé en ce qu'il est prévu au moins un système (62) de mesure de déplacement destiné à déterminer la position de la partie mobile (12) par rapport à la partie fixe (14).
  14. Ensemble de positionnement d'écran selon la revendication 13, caractérisé en ce qu'au moins un système (62) de mesure de déplacement est disposé sur une saillie (60) de la partie mobile et/ou de la partie fixe (12, 14).
EP10004258.9A 2010-04-22 2010-04-22 Systeme de positionnement d'un stencil d'impression pour une unité d'impression sérigraphique Not-in-force EP2380739B8 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10004258.9A EP2380739B8 (fr) 2010-04-22 2010-04-22 Systeme de positionnement d'un stencil d'impression pour une unité d'impression sérigraphique
KR1020110037278A KR20110118094A (ko) 2010-04-22 2011-04-21 스크린 인쇄 유닛용 스크린 배치장치
TW100113978A TW201206713A (en) 2010-04-22 2011-04-22 Screen positioning arrangement for a screen printing unit
CN201110107612.7A CN102241185B (zh) 2010-04-22 2011-04-22 用于丝网印刷单元的丝网定位装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10004258.9A EP2380739B8 (fr) 2010-04-22 2010-04-22 Systeme de positionnement d'un stencil d'impression pour une unité d'impression sérigraphique

Publications (3)

Publication Number Publication Date
EP2380739A1 EP2380739A1 (fr) 2011-10-26
EP2380739B1 true EP2380739B1 (fr) 2013-12-11
EP2380739B8 EP2380739B8 (fr) 2014-02-19

Family

ID=42549423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10004258.9A Not-in-force EP2380739B8 (fr) 2010-04-22 2010-04-22 Systeme de positionnement d'un stencil d'impression pour une unité d'impression sérigraphique

Country Status (4)

Country Link
EP (1) EP2380739B8 (fr)
KR (1) KR20110118094A (fr)
CN (1) CN102241185B (fr)
TW (1) TW201206713A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102837491A (zh) * 2012-09-28 2012-12-26 苏州金科信汇光电科技有限公司 印刷套色用定位装置
CN111038074B (zh) * 2019-12-03 2024-09-10 珠海镇东有限公司 丝印机及丝印网框的校准方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE454256B (sv) * 1982-05-05 1988-04-18 Svecia Silkscreen Maskiner Ab For en stenciltryckmaskin avsedd stencilram fasthallande och/eller registrerande anordning
DE4037678A1 (de) 1990-11-27 1992-06-04 Klemm Gerhard Maschfab Siebdruckmaschine
US5148745A (en) * 1991-03-08 1992-09-22 Hamu Kaino J Screen printing apparatus assembly
AU7892494A (en) * 1994-05-03 1995-11-09 Konstantine George Savva Image printer
JPH09239954A (ja) * 1996-03-07 1997-09-16 Hitachi Denshi Ltd コンビネーションマスク取り付け構造
JP3492491B2 (ja) * 1997-05-12 2004-02-03 Ｔｄｋ株式会社 スクリーン印刷マスク補正方法及び装置
US7182019B2 (en) * 2004-01-23 2007-02-27 Exatec, Llc Screen printing apparatus
CN201186520Y (zh) * 2008-05-16 2009-01-28 王敬伦 一种预调定位装置

Also Published As

Publication number Publication date
CN102241185B (zh) 2014-05-14
CN102241185A (zh) 2011-11-16
KR20110118094A (ko) 2011-10-28
TW201206713A (en) 2012-02-16
EP2380739B8 (fr) 2014-02-19
EP2380739A1 (fr) 2011-10-26

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