CH652343A5 - Squeegee, in particular for screen printing - Google Patents
Squeegee, in particular for screen printing Download PDFInfo
- Publication number
- CH652343A5 CH652343A5 CH372184A CH372184A CH652343A5 CH 652343 A5 CH652343 A5 CH 652343A5 CH 372184 A CH372184 A CH 372184A CH 372184 A CH372184 A CH 372184A CH 652343 A5 CH652343 A5 CH 652343A5
- Authority
- CH
- Switzerland
- Prior art keywords
- doctor blade
- strip
- leg
- doctor
- squeegee
- 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
- B41F15/44—Squeegees or doctors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1216—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by screen printing or stencil printing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
- Rotary Presses (AREA)
Abstract
A squeegee strip (2) is clamped between two limbs (5, 6) so as to be exchangeable. The one limb (6) protrudes beyond the other limb (5) by an amount (a). The squeegee strip is thus supported on a larger area than in a squeegee holder with a non-extended limb, and its elastic behaviour corresponds to that of a squeegee strip of greater hardness which would be inserted in a squeegee holder without an extended limb. <IMAGE>
Description
**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **.
PATENTANSPRÜCHE
1. Rakel, insbesondere für den Siebdruck, bei welcher der Rakelstreifen zwischen zwei Schenkeln auswechselbar befestigt ist, von welchen Schenkeln der eine durch den Rakelhalter und der andere durch eine Klemmleiste gebildet ist, dadurch gekennzeichnet, dass der eine (6) der Schenkel über den andern (5) um ein Mass (a) vorsteht.
2. Rakel nach Anspruch 1, dadurch gekennzeichnet, dass die Klemmleiste (3) den längeren Schenkel (6) bildet.
3. Rakel nach Anspruch 1, dadurch gekennzeichnet, dass der Rakelstreifenhalter den längeren Schenkel (5) bildet.
4. Rakel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das genannte Mass (a) 5 bis 7 mm beträgt.
5. Rakel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie als Handrakel ausgebildet ist.
6. Rakel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie als Maschinenrakel ausgebildet ist.
Der Siebdruck, z. B. für gedruckte Schaltungen, erfordert eine Vielzahl von Rakeln mit Rakelstreifen aus Kunststoff oder Gummi mit unterschiedlichen Shore-Härtegraden.
Aufgabe der Erfindung ist es, das elastische Verhalten eines Rakelstreifens durch einfache Massnahmen zu verändern, so dass die Zahl der erforderlichen Rakeln reduziert werden kann.
Diese Aufgabe wird durch die im Patentanspruch 1 angeführten Massnahmen gelöst.
Wird z.B. ein Rakelstreifen mit einer Shore-Härte von 600 beim Gebrauch gegen den längeren Schenkel abgestützt, so entspricht seine elastische Nachgiebigkeit derjenigen eines Rakelstreifens mit einer Shore-Härte von 75 bis 80 , der sich gegen einen nicht vorstehenden Schenkel abstützen würde.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.
Die dargestellte Handrakel besteht aus einem Rakelstreifenhalter I, einem Rakelstreifen 2 aus Gummi oder Kunststoff sowie einer Klemmleiste 3 aus einem Aluminiumprofil.
Der Rakelstreifenhalter 1 besteht aus imprägniertem Hartholz, so dass er wasser- und lösungsmittelabstossend ist. Der Rakelstreifen ist zwischen einem Schenkel 5 des Rakelhalters sowie einem durch die Klemmleiste 3 gebildeten Schenkel 6 befestigt. Die Klemmleiste 3 ist am Rakelstreifenhalter 1 mittels versenkter Schrauben 7 und Muttern befestigt. Der Schenkel 6 ist um ein Mass a von 5 bis 7 mm länger als der Schenkel 5. Wird die Rakel in Pfeilrichtung A über eine Schablone bewegt, so stützt sich der Rakelstreifen gegen den längeren Schenkel 6 ab. Der um das Mass A verlängerte Schenkel 6 verringert die elastische Nachgiebigkeit des Rakelstreifens 2.
Ein Rakelstreifen mit einer Shore-Härte von 600 zeigt bei seiner Abstützung am verlängerten Schenkel 6 ein elastisches Verhalten, welches dem eines Rakelstreifens 2 mit einer Shore-Härte von 75 bis 80 bei Abstützung an einem nicht um das Mass a verlängerten Schenkel entsprechen würde. Statt des Schenkels 6 könnte der Schenkel 5 um das Mass a verlängert sein. Statt wie dargestellt als Handrakel, könnte die Rakel auch als Maschinenrakel ausgebildet sein.
Einsatzgebiete für die Rakel sind: Graphischer und gewerblicher Siebdruck, Schaltungsdruck, Verpackungsdruck, Rotationsdruck von Rolle zu Rolle sowie Ausziehen von Spezialfolien bei der Glasbeschichtung.
** WARNING ** beginning of DESC field could overlap end of CLMS **.
PATENT CLAIMS
1. Squeegee, in particular for screen printing, in which the squeegee strip is interchangeably fastened between two legs, of which legs one is formed by the doctor holder and the other by a clamping strip, characterized in that one (6) of the legs is above the others (5) by a measure (a).
2. Doctor blade according to claim 1, characterized in that the clamping strip (3) forms the longer leg (6).
3. Doctor blade according to claim 1, characterized in that the doctor blade strip holder forms the longer leg (5).
4. Squeegee according to one of claims 1 to 3, characterized in that said measure (a) is 5 to 7 mm.
5. Doctor blade according to one of claims 1 to 4, characterized in that it is designed as a hand doctor blade.
6. Doctor blade according to one of claims 1 to 4, characterized in that it is designed as a machine doctor blade.
Screen printing, e.g. B. for printed circuits, requires a variety of doctor blades with doctor strips made of plastic or rubber with different degrees of Shore hardness.
The object of the invention is to change the elastic behavior of a doctor blade strip by simple measures so that the number of doctor blades required can be reduced.
This object is achieved by the measures specified in claim 1.
E.g. If a doctor blade strip with a Shore hardness of 600 is supported against the longer leg when in use, its elastic compliance corresponds to that of a doctor blade strip with a Shore hardness of 75 to 80, which would be supported against a leg that does not protrude.
In the drawing, an embodiment of the invention is shown.
The hand doctor blade shown consists of a doctor blade strip holder I, a doctor blade strip 2 made of rubber or plastic and a clamping strip 3 made of an aluminum profile.
The doctor blade strip holder 1 consists of impregnated hardwood, so that it is water and solvent repellent. The doctor strip is fastened between a leg 5 of the doctor holder and a leg 6 formed by the clamping strip 3. The terminal strip 3 is attached to the doctor strip holder 1 by means of countersunk screws 7 and nuts. The leg 6 is a dimension a of 5 to 7 mm longer than the leg 5. If the doctor blade is moved in the direction of arrow A over a template, the doctor blade strip is supported against the longer leg 6. The leg 6 extended by the dimension A reduces the elastic flexibility of the doctor blade strip 2.
A doctor blade strip with a Shore hardness of 600 shows an elastic behavior when it is supported on the extended leg 6, which would correspond to that of a doctor blade strip 2 with a Shore hardness of 75 to 80 when supported on a leg that is not extended by a dimension. Instead of the leg 6, the leg 5 could be extended by the dimension a. Instead of as a doctor blade as shown, the doctor blade could also be designed as a machine doctor blade.
Areas of application for the squeegee are: graphic and commercial screen printing, circuit printing, packaging printing, rotary printing from roll to roll and pulling out special foils for glass coating.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH372184A CH652343A5 (en) | 1984-08-02 | 1984-08-02 | Squeegee, in particular for screen printing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH372184A CH652343A5 (en) | 1984-08-02 | 1984-08-02 | Squeegee, in particular for screen printing |
Publications (1)
Publication Number | Publication Date |
---|---|
CH652343A5 true CH652343A5 (en) | 1985-11-15 |
Family
ID=4262070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH372184A CH652343A5 (en) | 1984-08-02 | 1984-08-02 | Squeegee, in particular for screen printing |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH652343A5 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4989511A (en) * | 1989-05-26 | 1991-02-05 | Flexible Products Company | Handle for a squeegee |
US5321868A (en) * | 1993-02-18 | 1994-06-21 | Cathy Coulson | Ergonomic squeegee for silk screening |
FR2765813A1 (en) * | 1997-07-11 | 1999-01-15 | Novatec | SQUEEGEE FOR APPLICATION OF PRODUCTS PRESENTING A HIGH DEGREE OF VISCOSITY AND THIXOTROPIC CHARACTERISTICS ON A SUBSTRATE WHICH MAY PRESENT VARIATIONS IN HEIGHT, THROUGH A STENCIL, APPLIED TO SAID SUBSTRATE |
-
1984
- 1984-08-02 CH CH372184A patent/CH652343A5/en not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4989511A (en) * | 1989-05-26 | 1991-02-05 | Flexible Products Company | Handle for a squeegee |
US5321868A (en) * | 1993-02-18 | 1994-06-21 | Cathy Coulson | Ergonomic squeegee for silk screening |
FR2765813A1 (en) * | 1997-07-11 | 1999-01-15 | Novatec | SQUEEGEE FOR APPLICATION OF PRODUCTS PRESENTING A HIGH DEGREE OF VISCOSITY AND THIXOTROPIC CHARACTERISTICS ON A SUBSTRATE WHICH MAY PRESENT VARIATIONS IN HEIGHT, THROUGH A STENCIL, APPLIED TO SAID SUBSTRATE |
WO1999002346A1 (en) * | 1997-07-11 | 1999-01-21 | Societe Novatec S.A. | Doctor blade for applying products with high degree of viscosity and thixotropic properties on a substrate varying in height, through a stencil, applied to said substrate |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3116505C2 (en) | Rotary printing machine that can be used for various printing processes | |
DE2734356A1 (en) | SQUEEGEE | |
CH652343A5 (en) | Squeegee, in particular for screen printing | |
DE3614541A1 (en) | DEVICE FOR HOLDING INTERLOCKS ON CYLINDERS OF ROTATIONAL PRINTING MACHINES | |
AT287748B (en) | Squeegee device | |
DE3309756C2 (en) | ||
DE19737479A1 (en) | Tool for extracting multiple integrated circuit from pulse socket | |
DE850618C (en) | Address printing machine | |
Fuchs | Verfassungskonformität der Nichtberücksichtigung der Inflation bei der Berechnung der ImmoESt. | |
DE29617170U1 (en) | Device for washing cylinders of a printing machine | |
DE806962C (en) | Printing device | |
AT86226B (en) | Extinguishing cradle. | |
DE961244C (en) | Device for securing the parallel guide of the free end of a commercially available tear bar | |
AT349498B (en) | SQUEEGEE, IN PARTICULAR FOR SCREEN PRINTING | |
DE519543C (en) | Multicolor rotogravure printing machine for sheets | |
DE2020958C3 (en) | Device for tensioning silk-screen silk | |
DE69401004T2 (en) | Multi-purpose exercise machine | |
DE1561109C3 (en) | Device for tensioning cylinder molds for rotary screen printing machines | |
DE600679C (en) | Rotogravure printing machine with a printing plate clamped on the forme cylinder | |
DE1761648U (en) | ARRANGEMENT OF CIRCUITS MADE BY PRINTED TECHNIQUE. | |
DE1807770U (en) | DRILLING JIG FOR BUILT-IN DEVICES. | |
DE1823940U (en) | SIGN SLIDER. | |
DE760555A (en) | ||
DE1994164U (en) | DEVICE FOR FAULT MARKING OF PIPES | |
DE7422691U (en) | Solder protection rail |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |