DE19802272A1 - Two-layer coating equipment producing circuit boards - Google Patents

Two-layer coating equipment producing circuit boards

Info

Publication number
DE19802272A1
DE19802272A1 DE1998102272 DE19802272A DE19802272A1 DE 19802272 A1 DE19802272 A1 DE 19802272A1 DE 1998102272 DE1998102272 DE 1998102272 DE 19802272 A DE19802272 A DE 19802272A DE 19802272 A1 DE19802272 A1 DE 19802272A1
Authority
DE
Germany
Prior art keywords
rollers
coating
sheet
layer coating
coated
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.)
Withdrawn
Application number
DE1998102272
Other languages
German (de)
Inventor
Hans-Juergen Dipl Ing Schaefer
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
Priority to DE1998102272 priority Critical patent/DE19802272A1/en
Publication of DE19802272A1 publication Critical patent/DE19802272A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
    • 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
    • H05K3/0091—Apparatus for coating printed circuits using liquid non-metallic coating compositions
    • 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
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/01—Tools for processing; Objects used during processing
    • H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
    • H05K2203/0143—Using a roller; Specific shape thereof; Providing locally adhesive portions thereon
    • 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
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/15—Position of the PCB during processing
    • H05K2203/1545—Continuous processing, i.e. involving rolls moving a band-like or solid carrier along a continuous production path
    • 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
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/15—Position of the PCB during processing
    • H05K2203/1572—Processing both sides of a PCB by the same process; Providing a similar arrangement of components on both sides; Making interlayer connections from two sides

Abstract

The equipment comprises three principal roller pairs (3-8), all at the same height. In the central, S-roller pair (5,6) the sheet is heated to temperatures well below those of the coating rollers (4,7) on either side. Preferred features: First and second coating units cover the inside and outside of the sheet respectively. Radiant heaters (11,14) are located above the rollers (6,7).

Description

Zur Beschichtung von Leiterplatten mit schmelzbaren, hochviskosen, thermisch und strahlenvernetzbaren Beschichtungsmitteln wurden Ver­ fahren und Vorrichtungen in der internationalen Patentanmeldung PCT/IB 94/00102 und PCT/IB 94/00101 beschrieben.For coating printed circuit boards with meltable, highly viscous, thermal and radiation-crosslinkable coating agents were Ver driving and devices in the international patent application PCT / IB 94/00102 and PCT / IB 94/00101.

In diesen Patentanmeldungen wird insbesondere darauf hingewiesen, daß die zu beschichtenden Leiterplatten auf bis zu 150°C aufgewärmt werden. Dies ist insbesondere dann erforderlich, wenn die gewünschte Viskosität auf dem zu beschichtendem Substrat erst bei dieser Temperatur erreicht wird, das Beschichtungsmittel jedoch wegen der zu hohen Reaktivität nicht auf diese Temperatur vorgewärmt werden kann.These patent applications particularly point out that the printed circuit boards to be coated are heated up to 150 ° C. This is particularly necessary if the desired viscosity reached on the substrate to be coated only at this temperature the coating agent, however, because of the reactivity being too high cannot be preheated to this temperature.

Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zur Verfügung zu stellen, bei der das zu beschichtende Substrat auf eine Temperatur aufgewärmt wird die deutlich über der Tempe­ ratur der Auftragswalze und des Beschichtungsmittels liegt. Außerdem ist es Aufgabe der vorliegenden Erfindung, eine Vorrichtung zur zur Verfügung zu stellen, mit der eine optimale Ummantelung der Fasern und das Herausdrücken der Luft ermöglicht wird.The object of the present invention is therefore to provide a device for To provide, in which the substrate to be coated on a The temperature is warmed up well above the temperature temperature of the application roller and the coating agent. It is also an object of the present invention to provide a device for to provide with an optimal sheathing of the fibers and allowing the air to be pushed out.

Die Lösung all dieser Probleme wird durch die erfindungsgemäße Vorrich­ tung erzielt.The solution of all these problems is provided by the device according to the invention achieved.

Die flächenförmigen Trägerstoffe (1) werden von einer Abrollung (18) über eine Umlenkrolle (2) einem beheizbarem S-Walzenpaar (5, 6) zugeführt. Eine mit einem Schmelztopf (9) ausgerüstete heizbare Wal­ zenbeschichtungseinheit, bestehend aus einer beheizbaren Dosierwalze (3) und einer beheizbaren und gummierten Auftragswalze (4) ist auf gleicher Achshöhe wie das S-Walzenpaar (5, 6) angeordnet und über­ trägt das Beschichtungsmittel (19) auf das auf höhere Temperatur auf­ gewärmte flächenförmige Trägermaterial (1). The sheet-like carrier materials ( 1 ) are fed from a roll ( 18 ) via a deflection roller ( 2 ) to a heatable pair of S rollers ( 5 , 6 ). A heatable roller coating unit equipped with a melting pot ( 9 ), consisting of a heatable metering roller ( 3 ) and a heatable and rubberized application roller ( 4 ), is arranged at the same axis height as the pair of S rollers ( 5 , 6 ) and carries the coating agent ( 19 ) to the sheet-like carrier material ( 1 ) heated to a higher temperature.

Die Auftragswalze (4) wird mit einem spezifischen Laminierdruck auf das zu beschichtende flächenförmige Trägermaterial gedrückt, so daß mit dem einseitigen Auftrag des Beschichtungsmittels die Luft aus dem Trägermaterial, insbesondere bei Geweben, herausgedrückt wird. Danach wird das flächenförmige Trägermaterial um die erste S-Walze (5) tangential zur Unterseite der zweiten S-Walze (6) geführt und um die­ se mit einer viertel Umschlingung herum vertikal in die IR-Härtungs­ strecke geführt (11).The application roller ( 4 ) is pressed with a specific lamination pressure onto the sheet-like carrier material to be coated, so that with one-sided application of the coating agent, the air is pressed out of the carrier material, particularly in the case of fabrics. Then the sheet-like carrier material is guided around the first S-roller ( 5 ) tangentially to the underside of the second S-roller ( 6 ) and vertically guided around it with a quarter loop in the IR curing section ( 11 ).

Die zweite Seite des flächenförmigen Trägerstoffes wird in gleicher Weise wie die erste Seite mittels einer auf gleicher Achshöhe zu dem S-Walzenpaar (5, 6) angeordneten Walzenbeschichtungseinheit, beste­ hend aus einer beheizbaren und gummierten Auftragswalze (7) und einer beheizbaren Dosierwalze (8) mit schmelzbarem Beschichtungsmittel (19) beschichtet, welches über den Schmelztopf (10) zugeführt wird. Zwischen den Walzen 7 und 8 ist ebenso wie zwischen den Walzen 3 und 4 eine Lackwanne ausgebildet, aus der die Auftragswalze (7) über einen definierten Spalt eine definierte Menge an Beschichtungsmittel überträgt.The second side of the sheet-like carrier material is made in the same way as the first side by means of a roller coating unit arranged at the same axis height as the pair of S rollers ( 5 , 6 ), consisting of a heatable and rubberized application roller ( 7 ) and a heatable metering roller ( 8 ) coated with meltable coating agent ( 19 ) which is supplied via the melting pot ( 10 ). Between the rollers 7 and 8 as well as between the rollers 3 and 4, a lacquer pan is formed, from which the application roller ( 7 ) transfers a defined amount of coating agent through a defined gap.

Im Anschluß an die beidseitige Beschichtung wird das Beschichtungsmit­ tel mittels vertikal angeordneter Strahler (11) (14) gehärtet.Following the coating on both sides, the coating agent is hardened by means of vertically arranged radiators ( 11 ) ( 14 ).

Um ein Ankleben des Beschichtungsmittels beim Umlenken der Bahn zu ver­ meiden, werden gekühlte Umlenkrollen (12, 13, 15, 16) verwendet,deren Temperatur auf unterhalb der Raumtemperatur gehalten wird. Nach der Abkühlung auf Raumtemperatur wird das beschichtete flächenförmige Trägermaterial auf einem Wendewickler (17) aufgewickelt.In order to avoid the coating agent sticking when the web is deflected, cooled deflection rollers ( 12 , 13 , 15 , 16 ) are used, the temperature of which is kept below room temperature. After cooling to room temperature, the coated sheet-like carrier material is wound on a turning winder ( 17 ).

In einer weiteren Ausführung der erfindungsgemäßen Vorrichtung wird ei­ ne Folie (37) um beheizbare Umlenkwalzen (25, 28) mit halber Umschli­ ngung geführt und in einem ersten Beschichtungsprozeß mit der Walzenein­ heit (23, 24) und in einem zweiten Beschichtungsprozeß mit der Walzen­ einheit (26, 27) zweischichtig beschichtet und mit darunter angeordne­ ten vertikal ausgerichteten Strahlern (31, 32, 39) vorgehärtet.In a further embodiment of the device according to the invention, a film ( 37 ) is guided around heat-deflecting rollers ( 25 , 28 ) with half a wrap and in a first coating process with the roller unit ( 23 , 24 ) and in a second coating process with the rollers unit ( 26 , 27 ) coated in two layers and pre-cured with vertically aligned radiators ( 31 , 32 , 39 ) arranged underneath.

Das S-Walzenpaar wird bei dieser zweischichtigen Beschichtung in zwei beheizte Umlenkrollen (25, 28) getrennt.With this two-layer coating, the pair of S rollers is separated into two heated deflection rollers ( 25 , 28 ).

Claims (6)

1. Vorrichtung zur zweischichtigen Beschichtung von Folien und flächen­ förmigen Trägerstoffen mit schmelzbaren, hochviskosen, thermisch und strahlenhärtbaren Beschichtungsmitteln dadurch gekennzeichnet, daß zwischen zwei auf gleicher Achshöhe angeordneten beheizbaren Wal­ zenpaaren (3, 4) und (7, 8) ein beheizbares S-Walzenpaar (5, 6) angeordnet ist, durch welches das zu beschichtende flächenförmige Trägermaterial auf Temperaturen aufheizbar ist, die deutlich über denen der Auftragswalzen (4 u. 7) liegen.1. Device for the two-layer coating of foils and sheet-like substrates with meltable, highly viscous, thermally and radiation-curable coating agents, characterized in that between two heatable roller pairs arranged at the same axis height ( 3 , 4 ) and ( 7 , 8 ) a heatable pair of S rollers ( 5 , 6 ) is arranged, by means of which the sheet-like carrier material to be coated can be heated to temperatures which are significantly higher than those of the application rollers (4 and 7). 2. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß in einer ersten Beschichtungseinheit (3 u. 4) die Innenseite und in einer zweiten Beschichtungseinheit die Außenseite der flächenförmigen Trägerstoffe beschichtet wird.2. Device according to claim 1, characterized in that in one first coating unit (3 and 4) the inside and in one second coating unit the outside of the sheet-like Carrier is coated. 3. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß die Auftrags­ walzen (4 u. 5) gummiert sind.3. Device according to claim 1, characterized in that the order rollers (4 and 5) are rubberized. 4. Vorrichtung nach den Ansprüchen 1 und 3 dadurch gekennzeichnet, daß es sich bei der Gummierung um eine Silikongummimodifizierung handelt, die eine Härte von 30 bis 60 shore A aufweist.4. Device according to claims 1 and 3, characterized in that the rubber coating is a silicone rubber modification deals, which has a hardness of 30 to 60 shore A. 5. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß über den Walzen (6 u. 7) Strahler in vertikaler Richtung angeordnet sind.5. The device according to claim 1, characterized in that the Rollers (6 and 7) emitters are arranged in the vertical direction. 6. Vorrichtung zur zweischichtigen Beschichtung einer Seite von Folien dadurch gekennzeichnet, daß die Achsen der Walzenbeschichtungseinheiten bestehen aus den Dosierwalzen (23, 26) und Auftragswalzen (24, 27) senkrecht zur Achse der Auftragswalzen (24, 27) zu den Umlenkwalzen (25, 28) angeordnet sind, so daß die Folien um die beheizten Umlenkrol­ len mit halber Umschlingung geführt werden und auf zwei unterhalb der Walzenbeschichtungsanlage vertikal angeordneten Strahlern (31, 39) ge­ härtet werden.6. Device for two-layer coating of one side of films, characterized in that the axes of the roller coating units consist of the metering rollers ( 23 , 26 ) and application rollers ( 24 , 27 ) perpendicular to the axis of the application rollers ( 24 , 27 ) to the deflection rollers ( 25 , 28 ) are arranged so that the foils are guided around the heated Umlenkrol len with half a loop and on two vertically arranged below the roll coating system emitters ( 31 , 39 ) are hardened.
DE1998102272 1998-01-22 1998-01-22 Two-layer coating equipment producing circuit boards Withdrawn DE19802272A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998102272 DE19802272A1 (en) 1998-01-22 1998-01-22 Two-layer coating equipment producing circuit boards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998102272 DE19802272A1 (en) 1998-01-22 1998-01-22 Two-layer coating equipment producing circuit boards

Publications (1)

Publication Number Publication Date
DE19802272A1 true DE19802272A1 (en) 1999-07-29

Family

ID=7855315

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998102272 Withdrawn DE19802272A1 (en) 1998-01-22 1998-01-22 Two-layer coating equipment producing circuit boards

Country Status (1)

Country Link
DE (1) DE19802272A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105396746A (en) * 2015-10-25 2016-03-16 佛山金百川科技有限公司 Hardening liquid coating mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105396746A (en) * 2015-10-25 2016-03-16 佛山金百川科技有限公司 Hardening liquid coating mechanism
CN105396746B (en) * 2015-10-25 2018-07-06 佛山金百川科技有限公司 A kind of hardening bath coating mechanism

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