WO2004018207A1 - Zentriereinheit für eine siebdruckvorrichtung - Google Patents
Zentriereinheit für eine siebdruckvorrichtung Download PDFInfo
- Publication number
- WO2004018207A1 WO2004018207A1 PCT/EP2003/007558 EP0307558W WO2004018207A1 WO 2004018207 A1 WO2004018207 A1 WO 2004018207A1 EP 0307558 W EP0307558 W EP 0307558W WO 2004018207 A1 WO2004018207 A1 WO 2004018207A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- centering device
- servo axes
- axes
- stop rollers
- servo
- Prior art date
Links
Classifications
-
- 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
- B41F15/26—Supports for workpieces for articles with flat surfaces
Definitions
- the invention relates to a centering device for a screen printing device with stop rollers arranged in a support plane for plates or disks to be printed, which come to rest on the outer edge of the plates or disks and secure their position for further processing.
- the stop rollers are attached to longitudinally adjustable servo axes in a centering device of the type mentioned, which lie above the support plane and are in turn attached to supports which are arranged on a stationary frame and above the support plane.
- the positioning is carried out by detecting the torques exerted by the servo axes, which are each picked up sensitively.
- the torque increases.
- the position of the plate can thus also be detected by detecting the torque.
- all movement sequences and position recordings can be stored so that they can be called up for a new print job.
- the centering force itself can be set via the torque of the servo axes. It is also possible to transfer the plate data to the positioning system using a CAD system. This eliminates the need to scan the plates using the servo axes.
- the servo axes are pivotally attached to the carriers, so that their direction of action is also adjustable.
- the carriers can be provided with holes arranged at intervals and the servo axes with pins that can be anchored in these. In this way it is possible to set the effective axes without great effort. This may be necessary with certain disk or plate shapes, as will be explained later.
- a transport path can be connected upstream of the support level and a transport belt running parallel to it can be assigned, from which the plates or disks can be raised into the support level by means of a lifting device.
- This lifting device can advantageously be provided with a plurality of ball guides lying in one plane, which can be lifted together into the support plane via the plane formed by the conveyor belt. The plates or disks then rest on the ball guides and can be easily and easily adjusted to the desired centering position by actuating the servo axes.
- the stop rollers are advantageously on one side from the servo axes. They can be arranged at a distance on the servo axes, for example pivotable, so that they can be pivoted downwards from a first out-of-service position into the operating position in order to come into contact with the outer contours of the disks or plates.
- FIG. 1 is a front view of a centering device according to the invention
- FIG. 2 shows the top view of the device of FIG. 1, but without the upstream transport route
- FIG. 8 shows a detailed illustration of a centering device according to the invention in an enlarged view and in an embodiment modified from the embodiment of FIGS. 1 to 3,
- FIG. 9 shows a section in the direction of section line IX-IX in FIG. 8 .
- FIG. 12 shows a representation similar to FIG. 10, but with the centering of a plate or disc with different outer contours than those shown in FIG. 10 and
- FIG. 13 shows the illustration similar to FIG. 12, but for the centering of a further plate or disk shape.
- FIG. 1 to 3 show a centering device 1 which has a frame 2 which can be set up on a floor, not shown, in which plates 3 can be centered in the manner which will be explained below.
- the centering device 1 is preceded by a transport device 4 with a roller conveyor on which the plates 3 can be fed to the centering device 1 in the direction of arrow 6.
- a support frame 7 is provided with four cross members 8, each of which is equipped with four upwardly directed ball guides 9.
- the ball guides 9 or the top contour of each ball lie in a common plane.
- the ball guides 4 therefore support the plate 3 in the position of the centering device 1 shown in FIGS. 1, 2 and 3.
- Fig. 4 makes it clear that in a starting position, namely when the plate 3 is first retracted from the roller conveyor 5 in the direction of arrow 6 into the centering device 1, the frame 7 with the ball guides 9 below the transport plane for the plate 3 is located, which is taken up within the frame 1 by a conveyor belt 10, not shown in FIGS. 1 and 3, but visible from FIGS. 2 and 4, and is transported into the centering device 1 in the direction of the arrows 11.
- a support device in the form of a frame is provided above this support plane 12 with three profile beams 13 running perpendicular to the beams 8, which can also be seen in detail in FIG. 8 and the following figures.
- So-called servo axes 14, 14a, 14b and 15 and 15a are arranged on these supports located at the upper end of the frame 1 and below them so that the strips surrounding the adjusting screws corresponding to the housing lie below the supports 13.
- the holding strips 16 for these servo axes are, as can be clearly seen in FIG.
- Each servo axis is provided in a manner known per se with an adjusting spindle and with an electric drive 22, with which it is possible to mount a holder 23 (FIG. 9), for example on a nut of the spindle, between a first end position 23a and a second one To move end position 23.
- the brackets 23 are each provided with stop rollers 24 which, in the embodiment of FIGS. 8, 9 and following, are arranged with their axes fixed on the bracket 23, but are themselves rotatable.
- the stop rollers 24 are also connected to a mount which can be displaced on the servo axes 14, 15, but there via pivoting levers 25, not shown in more detail, with the aid of which the stop rollers 24 are removed from the plane of the support plane 12 upwards can be made without having to move the servo axes 14, 15 for this purpose.
- the embodiment of FIGS. 8 and 9, which is also retained in the following FIGS. 10 to 13, provides, as can also be seen from the drawings, the arrangement of the stop rollers 24 on much shorter guides.
- the arrangement is more stable as a result, but assumes that the servo axes 14, 15 including their carriers 13 and the carrier system assigned to them can be lifted upwards in order not to hinder the retraction process during the insertion of the plates 3 into the centering device - see FIG. 4 ,
- the support system for the servo axes 14, 15 can be raised in the same way as is the case with the upper units of screen printing machines, of which one - not shown - the arrow direction III (FIG. 2) is arranged after the centering device 1 ,
- both the ball guides 9 and the stop rollers 24 are moved up and down from the support plane 12 on the lower edge of the plate 3.
- the ball guides 9 are moved upward, so that, as previously stated, they form the support plane 12 for the plate 3, which is therefore no longer on the conveyor belt 10.
- the stop rollers 24 are moved into the support plane 12, which is done either in the embodiment of FIGS. 1 to 3 by pivoting the lever 25 or, in the embodiment of FIGS. 8 and 9, by lowering the carrier 13.
- the servo axes 14 and 15 are then actuated until the stop rollers 24, as shown in FIG. 5, bear against the outer contour of the plate 3 and fix it.
- This position is fixed in that a tapping device for the torque of the drive motors 22 of the servo axes 14, 15 is provided, which can be done, for example, on the basis of the detection of the current required for the operation of the motors 22.
- a tapping device can work very sensitively, so that with a corresponding increase in the torque, the position of the plate 3 thereby set is clearly detected in the centering device and enables exact centering of the plate 3, for example, by comparing target and actual positions , which is independent of any tolerances in the contour of the plate 3.
- the determined values of this approached end position can also be stored in a storage device and called up again for centering a subsequent plate.
- FIG. 6 shows that the plate 3 in its centered position is grasped from below by a transport device 26, for example with suction cups 27, and is conveyed in the direction of arrow 6 from the centering direction to the screen printing machine, not shown.
- a transport device 26 for example with suction cups 27, and is conveyed in the direction of arrow 6 from the centering direction to the screen printing machine, not shown.
- FIG. 6 shows that the suction cups 27 of the transport device 26 become active before the stop rollers 24 are removed from the plate 3.
- FIG. 7 shows that the stop rollers 24 and the ball guides 9 are then removed from the plate 3 and from the support plane 12, so that the plate 3 in the direction of the arrow 6 to the one not shown and in the sense of arrow III of FIG. 2nd downstream of the centering device 1 Screen printing machine can be transported. 4, another plate 3 is fed in again.
- FIGS. 10 to 13 show examples of plates 3, 3a, 3b and 3c with different outer contours, which can be centered without problems by the device according to the invention.
- 8 first shows that the servo axes 14 and 14a run parallel to one another between the adjacent carriers 13 and that the servo axis 14b is arranged parallel to them on the opposite side.
- Servo axes running perpendicular to it are not shown, which serve to form stops perpendicular to the direction of movement of the servo axes 14, 14a and 14b.
- the square plate 3 shown in FIG. 8 can be centered at the center of the centering device by actuating the servo axes.
- the stop rollers 24 of the three servo axes are pressed against the outer edges of the plate 3 from opposite sides.
- stop rollers are pressed onto the sides of plate 3 that run perpendicular to the sides against which stop rollers 24 of servo axes 14a and 14b rest.
- FIG. 8 also makes it clear that plates up to size 3 '- see diagonal lines 29 - can be centered in the facility if necessary.
- servo axes 14 and 14a press in one direction against the outer contour 31 of the plate 3b, while one servo axis 14b is directed approximately perpendicularly to the curved outer contour 32 of the plate 3b and another Servo axis 15 is aligned perpendicular to the direction of action of the servo axes 14 and 14a. It is clear that such an arrangement and the appropriate abutment of the stop rollers 24, the plate 3b can be fixed in its position perfectly and centered, so that any tolerances of the outer contours have no influence on the centering position.
- FIG. 13 shows a plate 3c with a recess contour 33, on which two stop rollers 24 of servo axes acting parallel to one another are placed.
- the stop roller 24 of a servo axis 14b acts, and the side centering is carried out by the stop rollers 24 of servo axes 15 and 15a, one of which is perpendicular to the direction of action of the servo axis 14b, the other, however, at an angle to the axis of action of the other servo axes.
- the corresponding servo axis 15a then rests with its stop roller 24 on the curved outer edge of the plate 3c.
- the positioning is done by electric drives and by a Corresponding control of the same is carried out, wherein, as already indicated, a target / actual value is possible to achieve the exact alignment position.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering Or Overturning Sheets (AREA)
- Screen Printers (AREA)
- Rotary Presses (AREA)
- Cold Cathode And The Manufacture (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03792195A EP1526967B1 (de) | 2002-08-08 | 2003-07-12 | Zentriereinheit für eine siebdruckvorrichtung |
US10/523,469 US7284480B2 (en) | 2002-08-08 | 2003-07-12 | Centering unit for a silk-screen printing device |
AU2003257455A AU2003257455A1 (en) | 2002-08-08 | 2003-07-12 | Centering unit for a silk-screen printing device |
DE50305057T DE50305057D1 (de) | 2002-08-08 | 2003-07-12 | Zentriereinheit für eine siebdruckvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10237038A DE10237038C1 (de) | 2002-08-08 | 2002-08-08 | Zentriereinrichtung für eine Siebdruckvorrichtung |
DE10237038.9 | 2002-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004018207A1 true WO2004018207A1 (de) | 2004-03-04 |
Family
ID=29225193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/007558 WO2004018207A1 (de) | 2002-08-08 | 2003-07-12 | Zentriereinheit für eine siebdruckvorrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US7284480B2 (de) |
EP (1) | EP1526967B1 (de) |
AT (1) | ATE339309T1 (de) |
AU (1) | AU2003257455A1 (de) |
DE (2) | DE10237038C1 (de) |
ES (1) | ES2271688T3 (de) |
WO (1) | WO2004018207A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8215473B2 (en) * | 2008-05-21 | 2012-07-10 | Applied Materials, Inc. | Next generation screen printing system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0820863A1 (de) * | 1996-07-26 | 1998-01-28 | AISA S.p.A. | Vorrichtung zum Greifen und zur Registriereinstellung eines Werkstückes in einer Siebdruckmaschine |
EP1193060A1 (de) * | 2000-09-29 | 2002-04-03 | A.G. Engineering S.r.l. | Vorrichtung und Verfahren für die Positionierung eines in eine Siebdruckmaschine zu dekorierendes Produktes |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3918167A (en) * | 1974-03-01 | 1975-11-11 | Gerber Scientific Instr Co | Apparatus for sensing relative movement of a work table and tool |
JPS57201657A (en) * | 1981-06-05 | 1982-12-10 | Seiko Epson Corp | Positioning mechanism for item to be printed |
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 |
US6300971B1 (en) * | 1998-11-06 | 2001-10-09 | Gerber Systems Corporation | Apparatus and method for handling media sheets in a photo-plotter |
DE10143563A1 (de) * | 2001-09-05 | 2003-03-27 | Nexpress Solutions Llc | Einrichtung zum Einstellen eines Druckmaschinenrahmens |
US6561078B1 (en) * | 2001-12-28 | 2003-05-13 | Mark J. Hughes | Device for separating and removing kraeusen from beer during fermentation |
-
2002
- 2002-08-08 DE DE10237038A patent/DE10237038C1/de not_active Expired - Fee Related
-
2003
- 2003-07-12 US US10/523,469 patent/US7284480B2/en active Active
- 2003-07-12 DE DE50305057T patent/DE50305057D1/de not_active Expired - Lifetime
- 2003-07-12 WO PCT/EP2003/007558 patent/WO2004018207A1/de active IP Right Grant
- 2003-07-12 EP EP03792195A patent/EP1526967B1/de not_active Expired - Lifetime
- 2003-07-12 AT AT03792195T patent/ATE339309T1/de not_active IP Right Cessation
- 2003-07-12 ES ES03792195T patent/ES2271688T3/es not_active Expired - Lifetime
- 2003-07-12 AU AU2003257455A patent/AU2003257455A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0820863A1 (de) * | 1996-07-26 | 1998-01-28 | AISA S.p.A. | Vorrichtung zum Greifen und zur Registriereinstellung eines Werkstückes in einer Siebdruckmaschine |
EP1193060A1 (de) * | 2000-09-29 | 2002-04-03 | A.G. Engineering S.r.l. | Vorrichtung und Verfahren für die Positionierung eines in eine Siebdruckmaschine zu dekorierendes Produktes |
Also Published As
Publication number | Publication date |
---|---|
DE50305057D1 (de) | 2006-10-26 |
US7284480B2 (en) | 2007-10-23 |
EP1526967A1 (de) | 2005-05-04 |
DE10237038C1 (de) | 2003-11-13 |
EP1526967B1 (de) | 2006-09-13 |
AU2003257455A1 (en) | 2004-03-11 |
ES2271688T3 (es) | 2007-04-16 |
ATE339309T1 (de) | 2006-10-15 |
US20060162587A1 (en) | 2006-07-27 |
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