EP0743181B1 - Device for distributing flowable media - Google Patents

Device for distributing flowable media Download PDF

Info

Publication number
EP0743181B1
EP0743181B1 EP19960250109 EP96250109A EP0743181B1 EP 0743181 B1 EP0743181 B1 EP 0743181B1 EP 19960250109 EP19960250109 EP 19960250109 EP 96250109 A EP96250109 A EP 96250109A EP 0743181 B1 EP0743181 B1 EP 0743181B1
Authority
EP
European Patent Office
Prior art keywords
pipe
reinforced plastic
section
cross
wall
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.)
Expired - Lifetime
Application number
EP19960250109
Other languages
German (de)
French (fr)
Other versions
EP0743181A1 (en
Inventor
Johannes Zimmer
Karl M. Wechselberger
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.)
J Zimmer Maschinenbau Kufstein GmbH
Original Assignee
J Zimmer Maschinenbau Kufstein GmbH
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 J Zimmer Maschinenbau Kufstein GmbH filed Critical J Zimmer Maschinenbau Kufstein GmbH
Publication of EP0743181A1 publication Critical patent/EP0743181A1/en
Application granted granted Critical
Publication of EP0743181B1 publication Critical patent/EP0743181B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/14Details
    • B41F15/40Inking units
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/85938Non-valved flow dividers

Definitions

  • the invention relates to a device for distributing flowable medium, in particular of color substance over the Application width of the station of a stencil printing machine, comprising a tube carrying at least one medium Channel and several from the inside of the pipe through the pipe wall has leading outlet openings for the medium, the outlet openings spaced along the length of the pipe are distributed.
  • the feed pipes the known devices are made of metal.
  • the Accuracy of the internal dimensions of the available ones Steel pipes is relatively small, and so is the quality the inner surface of the tube, which is at least partially the wall of a Feed channel forms, leaves in terms of undisturbed and reproducible Substance flow especially for small and low-pressure substance quantities leave a lot to be desired.
  • In addition are not sufficiently smooth inside walls with considerable Difficulties associated with cleaning, in particular with throughput of large amounts of cleaning fluid.
  • pipes are made Aluminum provided, but not a satisfactory one Have resistance to deflection.
  • the invention has for its object a distribution device with a tube having outlet openings for to create even width distribution of medium of the internal properties of the pipe at static and at in the operation of dynamic stress with regard to dimensions and Shape retention of the inner pipe wall in the channel area and with regard to the surface condition of the inner pipe wall should be improved, especially with large working widths of 5 meters and more, the device also lightweight and space-saving build as well should be cheap to produce.
  • the tube wall at least over part of the pipe length made of reinforced plastic is formed, which is formed from reinforced plastic Pipe wall a straight extending in pipe extension Form and dimensionally stable inner tube wall that forms with the outlet openings is provided.
  • the one formed with reinforced plastic, at least partially pipe wall provided as an inner channel wall by its dimensions and Shape precision under static and dynamic loads and by the fineness and / or smoothness of the medium leading Surface to a variety of uses, functions and Material advantages leads in terms of manufacture, handling and operation of the pipe distributor cooperate favorably.
  • Conventional impairments of the Guidance and flow uniformity of the medium due to uneven walls or curvature due to deflection, cross-sectional deviations over the flow path and surface defects are eliminated.
  • the inventive Distribution pipe with duct wall made of reinforced plastic not just one compared to conventional metal pipes Weight reduction achieved, which makes handling easier, but with a relatively small cross section great stability and satisfactory mechanical operation Strength achieved.
  • the same pipe cross-sections can be used as provided with stainless steel pipes, to existing ones Systems with the new much lighter manifolds convert. Weight saving and therefore simplicity handling are considerable.
  • an inventive one Distribution tube made of carbon fiber reinforced plastic (CFK) weighs together with the distribution device arranged in it approx. 10 kg, i.e.
  • the reinforced plastic of the tube wall made of fiber-reinforced plastic, especially advantageous made of carbon fiber reinforced plastic that stands out particularly high strength.
  • Generally point pipes made of reinforced plastic with a slightly conical inner shape consequently not exactly constant over the pipe length Pipe cross-section. Even minor straightness and / or Cross-sectional changes are for the purposes of the invention disadvantageous. According to the invention, it therefore depends on the total straight extension precise shape and dimensional accuracy of the Inner pipe wall. It has been found to be particularly affordable Properties of the pipe distribution device can be achieved if a diameter deviation related to at least one meter of pipe length at most in the range of a fraction of one Is millimeters and is in particular less than 0.1 mm.
  • an insert body in the tube or in the tube section of reinforced Plastic an insert body is used, which in inserted state with the highest accuracy of the same shape and cross-section with the pipe interior. At least in some areas is against the inner wall of the insert advantageous as a distribution device for even distribution of the flowable medium supplied to the individual Outlet openings formed, with flow channels that start from a main feeder through continued channel division a preferably symmetrical branching system form.
  • Dimensional, dimensional stability and internal precision of the invention Manifold are essential for the satisfactory width distribution function of the Insert body.
  • the insert body as in a tight fit in the tube is inserted into the body, which is preferably consists of a material that when cooled in the Measure shrinkable is that the body in the cooled state can be easily inserted into the inside of the pipe and he is at Warming up to room temperature a larger, the full clamp seat manufacturing profile cross-sectional volume.
  • the insert body can advantageously be made of a material such as Polyethylene consist of the one you want, through the material adjustable shrink and expansion function guaranteed and on the other hand an optimal sliding surface for the medium, but also for insertion into the tube from the Forms front side.
  • the material is easy to work with and also has an insert body made of plastic light weight.
  • the overall stability and rigidity of the through the pipe made of reinforced plastic and the insert body Composite unit is further improved, being special is advantageous, flow channels as radially extending, to provide grooves open to the body surface so that the remaining radial webs for sufficient transverse rigidity and also provide axial rigidity.
  • the tube made of reinforced Plastic can be provided as a hollow body by plastic and fiber material wrapped around a die can be produced. Using a mandrel with a highly polished finish The surface becomes particularly fine and smooth the inner surface of the tube, the precise Cross-sectional dimension is predetermined by the die shape. It is also very advantageous that the tube, in particular Form of a coiled tube as a highly precise polygonal Hollow body can be produced, in particular for one Insert body has a cross-section to prevent rotation and precise positioning forms. This allows the channel ends easy fit on the circumference of the insert body in position in front of the assigned outlet openings in be brought to the pipe wall.
  • the distribution pipe according to the invention made of reinforced plastic is particularly suitable for connection to an additional device suitable at least over part of the pipe length is connected to the pipe. It is particularly favorable to the additional device to glue to the pipe.
  • This is one statically stable overall unit with enlarged cross-section manufactured.
  • the additional device is in stencil printing machines, Favorably in particular with circular stencil machines designed as a doctor device.
  • a carrier of the Additional device can be a bar made of elastic material exhibit. This bar can either be used as a doctor blade be formed or be arranged next to a doctor blade.
  • a paint distribution tube 1 shown in FIGS. 1 and 1a is on both ends with connectors 2 for connecting a medium like paint supply line and a termination piece. Inside the paint tube 1 can be under pressure standing color can be brought in, distributed over small Through outlet openings 3 on the underside of the paint tube exits this and then e.g. in the usual way by means of a squeegee device through a template is applied to a web.
  • the straight wall of the Tube 1 made of carbon fiber reinforced plastic (CFRP) the one is lightweight and robust composite material.
  • CFRP material e.g. in the form of at least one sheet of material or wrapped in multiple layers around a highly polished die becomes.
  • a pipe was reached in which the inner diameter only differ by 0.02 mm at the pipe ends.
  • the additional device 4 is as Squeegee guide formed in parallel with the Tube extends. It has a carrier 5 made of plastic, preferably made of polyoxymethylene (POM). On the carrier 5 is a region 5a adapted to the outer shape of the tube 1, which is glued to the tube 1.
  • the carrier 5 is as a statically favorable, a deflection over the length of the device counteracting hollow profile with a one or cavity 23 having a plurality of chambers.
  • the Both ends of the hollow carrier profile are with detachable side parts 6 covered.
  • the carrier 5 of the additional device 4 has a bar 7, which is preferably made of elastic material such as rubber.
  • This bar 7 is detachably connected to the carrier 5.
  • the carrier 5 has a groove 8 widened at the bottom in which the correspondingly profiled bar 7 in axial Direction can be inserted.
  • the bar 7 can be used as a doctor blade be trained.
  • a separate one Roller doctor blade 9 arranged so that accuracy the bar 7 are reduced requirements.
  • a magnet 10 is arranged, which when removing the entire color tube unit from a not shown Round stencil of a printing machine the loosely guided squeegee 9 takes away.
  • the doctor blade 9 is in the usual way thanks to a magnetic system on the round template and a web pressed.
  • Doctor guides 11 are on the side parts 6 of the carrier 5 releasably attached, which is also designed as a color limiter are.
  • a paint distribution pipe 1 according to FIG. 3 is in two pipe sections 1a and 1b divides.
  • Section la is a straight line Hollow cylinder tube formed, while section 1b is a curved one Pipe piece is.
  • Sections 1a and 1b are through a transition piece 16 connected to each other. In the transition piece 16 opens into a held by a spacer 17 Feed pipe 18. At its other end is the paint pipe 1 completed with a plug 19.
  • the transition piece 16 opens at the opposite of the feed pipe 18 End in an insert body 20 that is inside the pipe section 1a is inserted in a precise shape and fit.
  • the insert body 20 forms a distribution device for even distribution of the supplied paint to the outlet openings 3, which is spaced along the pipe are arranged.
  • the insert body 20 is included Flow channels 21 provided by a main feed 22nd go out and by continuing division a symmetrical Form branching system. This is from the circumferential 6 can be seen.
  • the insert body 20 is made of polyethylene. Because of one Material choice, it is advantageously possible that the insert body 20 in the form of a plastic rod that is subjected to cold treatment is reduced in cross-sectional dimension, smoothly can be introduced into the pipe section la.
  • Fig. 4 is the cross section of the pipe section 1a with the CFRP tube wall and the circular cylindrical insert body 20 of Embodiment according to Fig. 3a shown enlarged. Especially It may be expedient to cross section of the pipe and insert body to provide rectangular and in particular square, as shown in Fig. 5.
  • the insert body 20 one corresponding to the interior of the straight pipe section 1a circular cylindrical shape.
  • the flow channels 21 are milled into the cylinder surface, extending radially Grooves.
  • the main feed 22 is also a radial groove educated.
  • both the insert body 20 and the additional device 4 support the static strength and shape retention of the paint tube device achieved by the fiber-reinforced plastic tube.
  • the diameter of the tube can also be reduced to a certain degree.
  • a device according to the invention is suitable spread the width of very different flowable or flowable media, e.g. also for adhesives.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Ink Jet (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Nozzles (AREA)

Abstract

Three hollow moulding beam (2) has the surface shell of its hollow profile (21) designed as a bonding surface over at least part of the total circumference of the moulding. In the longitudinal direction, it virtually covers the application width. The hollow profile is bonded to at least one other second profile (22-24,221,226), which has at least one surface complementary to the binding surface of the hollow profile. The planes are parallel and roughly equal in area, forming a one-piece construction of the beam.

Description

Die Erfindung betrifft eine Vorrichtung zum Verteilen von fließfähigem Medium, insbesondere von Farbsubstanz über die Auftragungsbreite der Station einer Schablonendruckmaschine, umfassend ein Rohr, das wenigstens einen Medium führenden Kanal und mehrere aus dem Rohrinneren durch die Rohrwand nach außen führende Austrittsöffnungen für das Medium aufweist, wobei die Austrittsöffnungen über die Rohrlänge im Abstand verteilt angeordnet sind.The invention relates to a device for distributing flowable medium, in particular of color substance over the Application width of the station of a stencil printing machine, comprising a tube carrying at least one medium Channel and several from the inside of the pipe through the pipe wall has leading outlet openings for the medium, the outlet openings spaced along the length of the pipe are distributed.

Es ist allgemein bekannt und üblich, ein Rohr mit mehreren über die Rohrlänge im Abstand verteilt angeordneten öffnungen vorzusehen, um in einer Druckmaschine Medien wie Farbsubstanz oder Reinigungsflüssigkeit über die Arbeitsbreite einer Druckstation zu verteilen (vgl. EP-A3-0 277 481). Insbesondere um über große Arbeitsbreiten von 5 m und mehr eine möglichst gleichmäßige Verteilung des Mediums zu erhalten, ist in ein Rohr ein Verteilungskörper eingesetzt, in dem ein durch fortgesetzte Teilung gebildetes Verzweigungssystem ausgebildet ist (DE-A1-33 35 252). Aus WO-A-94/17927 ist eine Verteileinrichtung mit mehrteiligem Kanal-Einsatzkörper bekannt, wobei mit dem Rohr auch Zusatzeinrichtungen verbunden sind, die eine Rakelhalteeinrichtung, eine Rakelleiteinrichtung und/oder Teile des Kanalsystems bilden. - Die Zuführrohre der bekannten Vorrichtungen bestehen aus Metall. Bevorzugt werden rostfreie Stahlrohre vorgesehen, um insbesondere bei großen Arbeitsbreiten von mehreren Metern möglichst große Festigkeit zur Vermeidung von Durchbiegung zu erzielen. Die Genauigkeit der Innendimensionen der zur Verfügung stehenden Stahlrohre ist relativ gering, und auch die Beschaffenheit der Rohrinnenfläche, die wenigstens teilweise die Wand eines Zuführkanals bildet, läßt hinsichtlich ungestörter und reproduzierbarer Substanzströmung für insbesondere kleine und druckarme Substanzmengen erheblich zu wünschen übrig. Zudem sind nicht ausreichend glatte Kanalinnenwände mit erheblichen Erschwernissen bei der Reinigung verbunden, und zwar insbesondere mit Durchsatz von großen Mengen Reinigungsflüssigkeit. Um die Innengenauigkeit zu verbessern, werden Rohre aus Aluminium vorgesehen, die allerdings keine zufriedenstellende Festigkeit gegen Durchbiegung aufweisen. Zwar sind Aluminiumrohre als solche wegen ihres gegenüber Stahlrohren geringeren Gewichts leichter zu handhaben, was an sich insbesondere zum Auf- und Abrüsten in dem engen Raum von Siebzylinder-Rundschablonen und bei Rohrlängen über mehrere Meter sehr wünschenswert ist. Um aber Durchbiegungen entgegen zu wirken, sind zusätzlich Versteifungswände und/oder Spanneinrichtungen vorzusehen (WO-A-94/17927). Insbesondere dann, wenn herkömmliche Metallrohre zur Breitenverteilung von Medium mit einem Verteilungskanäle aufweisenden Einsatzkörper ausgestattet werden, entstehen erhebliche Dichtprobleme. Ein Einsatzkörper mit gewünschtem mehrstufigem Verteilungssystem weist an seiner Oberfläche dicht benachbarte eingangsseitige und ausgangsseitige Kanalabschnitte auf. Bereits Paßungenauigkeiten zwischen Rohrinnenwand und Einsatzkörperoberfläche mit Spalten in der Größenordnung von 1/10 mm führen zu außerordentlich nachteiligen Bypass- und Nebenströmungen, die die Breitenverteilung empfindlich stören und beim Drucken in einer Druckmaschine mit erheblichen Kosten durch anfallende Ausschußware verbunden sind. Bisweilen werden Rohre mit Verteilkörpern sogar unbrauchbar, wenn sich Substanzreste aus Fehlspalten durch Reinigung nicht entfernen lassen.It is well known and common to have one tube with several openings spaced apart along the length of the pipe to provide media such as color substance in a printing press or cleaning fluid over the working width of a Distribute printing station (see. EP-A3-0 277 481). Especially in order to achieve the greatest possible over large working widths of 5 m and more to get an even distribution of the medium a distribution body is inserted into a tube, in which a branching system formed by continued division is (DE-A1-33 35 252). From WO-A-94/17927 is one Distribution device with multi-part channel insert body known, additional devices also being connected to the tube are a squeegee holder, a squeegee guide and / or form parts of the channel system. - The feed pipes the known devices are made of metal. Prefers stainless steel pipes are provided, in particular for large working widths of several meters as large as possible To achieve strength to avoid deflection. The Accuracy of the internal dimensions of the available ones Steel pipes is relatively small, and so is the quality the inner surface of the tube, which is at least partially the wall of a Feed channel forms, leaves in terms of undisturbed and reproducible Substance flow especially for small and low-pressure substance quantities leave a lot to be desired. In addition are not sufficiently smooth inside walls with considerable Difficulties associated with cleaning, in particular with throughput of large amounts of cleaning fluid. To improve the internal accuracy, pipes are made Aluminum provided, but not a satisfactory one Have resistance to deflection. Although aluminum tubes as such because of their smaller size than steel pipes Weight easier to handle, which in particular for Set up and tear down in the narrow space of screen cylinder round templates and very desirable for pipe lengths over several meters is. But to counteract deflections, are additional stiffening walls and / or tensioning devices to provide (WO-A-94/17927). Especially when conventional Metal pipes for the distribution of the width of medium with one Insert body equipped with distribution channels considerable sealing problems arise. An insert body with the desired multi-stage distribution system points to its Surface of closely adjacent input and output side Channel sections on. Already inaccuracies between the inner pipe wall and the surface of the insert body with gaps in the order of 1/10 mm lead to extraordinary disadvantageous bypass and side flows that the width distribution distract sensitive and when printing in one Printing machine with considerable costs due to rejects are connected. Sometimes pipes with distribution bodies even unusable if substance residues result from faulty gaps do not have it removed by cleaning.

Der Erfindung liegt die Aufgabe zugrunde, eine Verteilvorrichtung mit einem Austrittsöffnungen aufweisenden Rohr zur gleichmäßigen Breitenverteilung von Medium zu schaffen, bei der die Innenbeschaffenheit des Rohres bei statischer und bei im Betrieb dynamischer Beanspruchung hinsichtlich Maß- und Formhaltigkeit der Rohrinnenwand im Kanalbereich und hinsichtlich der Oberflächenbeschaffenheit der Rohrinnenwand verbessert sein soll, und zwar insbesondere bei großen Arbeitsbreiten von 5 Metern und mehr, wobei die Vorrichtung zudem gewichtsmäßig leicht und raumsparend bauen sowie günstig herstellbar sein soll.The invention has for its object a distribution device with a tube having outlet openings for to create even width distribution of medium of the internal properties of the pipe at static and at in the operation of dynamic stress with regard to dimensions and Shape retention of the inner pipe wall in the channel area and with regard to the surface condition of the inner pipe wall should be improved, especially with large working widths of 5 meters and more, the device also lightweight and space-saving build as well should be cheap to produce.

Die Aufgabe wird in Verbindung mit den Merkmalen der eingangs genannten Vorrichtung dadurch gelöst, daß die Rohrwand wenigstens über einen Teil der Rohrlänge aus verstärktem Kunststoff gebildet ist, wobei die aus verstärktem Kunststoff gebildete Rohrwand eine in Rohrerstreckung sich gerade erstreckende form- und maßhaltige Rohrinnenwand bildet, die mit den Austrittsöffnungen versehen ist. Es wurde gefunden, daß die mit verstärktem Kunststoff gebildete, wenigstens teilweise als Kanalinnenwand vorgesehene Rohrwand durch ihre Maßund Formpräzision bei statischer und dynamischer Belastung sowie durch Feinheit und/oder Glattheit der Medium führenden Oberfläche zu einer Mehrzahl von Nutzungs-, Funktions- und Materialvorteilen führt, die hinsichtlich Herstellung, Handhabung und Betrieb der Rohr-Verteileinrichtung besonders günstig zusammenwirken. Herkömmliche Beeinträchtigungen der Führungs- und Flußgleichmäßigkeit des Mediums durch Wandunebenheiten oder -krümmungen infolge Durchbiegung, Querschnittsabweichungen über dem Strömungsweg und Oberflächenstörungen sind beseitigt. Dies erlaubt den Betrieb mit sehr unterschiedlichen Strömungsmedien sowie mit geringem und großem Durchsatz bei insbesondere auch druckarmer Einspeisung. Durch Verringerung von Rückständen ist die Innenreinigung des Verteilrohres verbessert. Zudem ist durch das erfindungsgemäße Verteilrohr mit Kanalwand aus verstärktem Kunststoff im Vergleich mit üblichen Metallrohren nicht nur eine Gewichtsreduzierung erreicht, die die Handhabung erleichtert, sondern bei verhältnismäßig geringem Querschnitt sind auch große Stabilität und im Betrieb zufriedenstellende mechanische Festigkeit erzielt. Es können gleiche Rohrquerschnitte wie bei Rohren aus rostfreiem Stahl vorgesehen werden, um bestehende Systeme mit den neuen wesentlich leichteren Verteilrohren umzurüsten. Gewichtsersparnis und damit die Einfachheit der Handhabung sind beträchtlich. Z.B. wiegt ein ca. 4 m langes Verteilrohr aus rostfreiem Stahl ca. 21 kg, ein erfindungsgemäßes Verteilrohr aus carbonfaserverstärktem Kunststoff (CFK) wiegt samt darin angeordneter Verteilungseinrichtung ca. 10 kg, also weniger als die Hälfte. Es sei betont, daß solche im Vergleich mit Stahlrohren bestehenden Gewichts- und Festigkeitsvorteile von Rohren aus verstärktem Kunststoff, wie sie als solche z.B. aus DE-B2-25 20 623 bekannt sind, zu den anderen genannten Vorteilen aufgrund der für die Breitenverteilung angepaßten Innenausbildung des erfindungsgemäßen Verteilrohres ergänzend hinzukommen.The task is combined with the characteristics of the beginning said device solved in that the tube wall at least over part of the pipe length made of reinforced plastic is formed, which is formed from reinforced plastic Pipe wall a straight extending in pipe extension Form and dimensionally stable inner tube wall that forms with the outlet openings is provided. It was found that the one formed with reinforced plastic, at least partially pipe wall provided as an inner channel wall by its dimensions and Shape precision under static and dynamic loads and by the fineness and / or smoothness of the medium leading Surface to a variety of uses, functions and Material advantages leads in terms of manufacture, handling and operation of the pipe distributor cooperate favorably. Conventional impairments of the Guidance and flow uniformity of the medium due to uneven walls or curvature due to deflection, cross-sectional deviations over the flow path and surface defects are eliminated. This allows operation with a lot different flow media as well as low and high throughput with in particular low-pressure feed. By reducing residues, the inside is cleaned the distribution pipe improved. In addition, the inventive Distribution pipe with duct wall made of reinforced plastic not just one compared to conventional metal pipes Weight reduction achieved, which makes handling easier, but with a relatively small cross section great stability and satisfactory mechanical operation Strength achieved. The same pipe cross-sections can be used as provided with stainless steel pipes, to existing ones Systems with the new much lighter manifolds convert. Weight saving and therefore simplicity handling are considerable. E.g. weighs about 4 m long stainless steel distribution pipe approx. 21 kg, an inventive one Distribution tube made of carbon fiber reinforced plastic (CFK) weighs together with the distribution device arranged in it approx. 10 kg, i.e. less than half. It should be emphasized that existing in comparison with steel pipes Weight and strength advantages of pipes made of reinforced Plastic, as such e.g. known from DE-B2-25 20 623 are to the other advantages mentioned due to the adapted for the width distribution internal training of the invention Distribution pipe to add.

Vorzugsweise besteht der verstärkte Kunststoff der Rohrwand aus faserverstärktem Kunststoff, und zwar besonders vorteilhaft aus carbonfaserverstärktem Kunststoff, der sich durch besonders hohe Festigkeit auszeichnet. Allgemein weisen Rohre aus verstärktem Kunststoff eine leicht konische Innenform mit infolgedessen über die Rohrlänge nicht genau gleichbleibendem Rohrquerschnitt auf. Schon geringfügige Geradtheits- und/oder Querschnittsänderungen sind für die erfindungsgemäßen Zwecke nachteilig. Erfindungsgemäß kommt es daher auf die über die gesamte Gerad-Erstreckung präzise Form- und Maßhaltigkeit der Rohrinnenwand an. Es wurde gefunden, daß besonders günstige Eigenschaften der Rohrverteilvorrichtung erzielt werden, wenn eine auf mindestens einen Meter Rohrlänge bezogene Durchmesserabweichung höchstens im Bereich des Bruchteils von einem Millimeter liegt und insbesondere kleiner als 0,1 mm ist.Preferably, the reinforced plastic of the tube wall made of fiber-reinforced plastic, especially advantageous made of carbon fiber reinforced plastic that stands out particularly high strength. Generally point pipes made of reinforced plastic with a slightly conical inner shape consequently not exactly constant over the pipe length Pipe cross-section. Even minor straightness and / or Cross-sectional changes are for the purposes of the invention disadvantageous. According to the invention, it therefore depends on the total straight extension precise shape and dimensional accuracy of the Inner pipe wall. It has been found to be particularly affordable Properties of the pipe distribution device can be achieved if a diameter deviation related to at least one meter of pipe length at most in the range of a fraction of one Is millimeters and is in particular less than 0.1 mm.

Eine besonders vorteilhafte Gestaltung der Erfindung besteht darin, daß in das Rohr oder in den Rohrabschnitt aus verstärktem Kunststoff ein Einsatzkörper eingesetzt ist, der in eingefügtem Zustand mit höchster Genauigkeit form- und querschnittsgleich mit dem Rohrinnenraum ist. Der zumindest bereichsweise an der Rohrinnenwand anliegende Einsatzkörper ist vorteilhaft als Verteileinrichtung zum gleichmäßigen Verteilen des zugeführten fließfähigen Mediums auf die einzelnen Austrittsöffnungen ausgebildet, wobei Strömungskanäle, die von einer Hauptzuführung ausgehen, durch fortgesetzte Kanalteilung ein vorzugsweise symmetrisches Verzweigungssystem bilden. Maß-, Formhaltigkeit und Innenpräzision des erfindungsgemäßen Verteilrohres sind von wesentlicher Bedeutung für die zufriedenstellende Breitenverteilungsfunktion des Einsatzkörpers.There is a particularly advantageous embodiment of the invention in that in the tube or in the tube section of reinforced Plastic an insert body is used, which in inserted state with the highest accuracy of the same shape and cross-section with the pipe interior. At least in some areas is against the inner wall of the insert advantageous as a distribution device for even distribution of the flowable medium supplied to the individual Outlet openings formed, with flow channels that start from a main feeder through continued channel division a preferably symmetrical branching system form. Dimensional, dimensional stability and internal precision of the invention Manifold are essential for the satisfactory width distribution function of the Insert body.

Insbesondere bei Verwendung eines Einsatzkörpers, in den die Strömungskanäle als Nuten in die Körperoberfläche eingelassen sind, ist es gemäß einer Erfindungsgestaltung besonders vorteilhaft, daß der Einsatzkörper als in sattem Klemmsitz in das Rohrinnere eingefügter Körper vorgesehen ist, der vorzugsweise aus einem Material besteht, das bei Kühlung in dem Maß einschrumpfbar ist, daß der Körper im gekühlten Zustand leichtgängig in das Rohrinnere einschiebbar ist und er bei Erwärmung auf Raumtemperatur ein größeres, den satten Klemmsitz herstellendes Profilquerschnittsvolumen einnimmt. Sehr vorteilhaft kann der Einsatzkörper aus einem Material wie Polyethylen bestehen, das einerseits die gewünschte, durch das Material einstellbare Schrumpf- und Ausdehnungsfunktion gewährleistet und andererseits eine optimale Gleitfäche für das Medium, aber auch zum Einschieben in das Rohr von der Stirnseite her bildet. Das Material läßt sich leicht bearbeiten, und zudem weist ein Einsatzkörper aus Kunststoff ein geringes Gewicht auf. Zu den genannten Vorteilen kommt hinzu, daß die Gesamtstabilität und -steifigkeit der durch das Rohr aus verstärktem Kunststoff und den Einsatzkörper gebildeten Verbundeinheit weiter verbessert ist, wobei es besonders vorteilhaft ist, Strömungskanäle als sich radial erstreckende, zu Körperoberfläche offene Nuten vorzusehen, so daß die verbleibenden Radialstege dennoch für ausreichende Quersteifigkeit und auch Axialsteifigkeit sorgen.Especially when using an insert body in which the Flow channels embedded in the body surface as grooves it is particularly advantageous according to an inventive design that the insert body as in a tight fit in the tube is inserted into the body, which is preferably consists of a material that when cooled in the Measure shrinkable is that the body in the cooled state can be easily inserted into the inside of the pipe and he is at Warming up to room temperature a larger, the full clamp seat manufacturing profile cross-sectional volume. Very The insert body can advantageously be made of a material such as Polyethylene consist of the one you want, through the material adjustable shrink and expansion function guaranteed and on the other hand an optimal sliding surface for the medium, but also for insertion into the tube from the Forms front side. The material is easy to work with and also has an insert body made of plastic light weight. In addition to the advantages mentioned, that the overall stability and rigidity of the through the pipe made of reinforced plastic and the insert body Composite unit is further improved, being special is advantageous, flow channels as radially extending, to provide grooves open to the body surface so that the remaining radial webs for sufficient transverse rigidity and also provide axial rigidity.

Besonders vorteilhaft es es, daß das Rohr aus verstärktem Kunststoff als Hohlkörper vorgesehen werden kann, der durch um einen Matrizendorn gewickeltes Kunststoff- und Fasermaterial herstellbar ist. Mittels eines Dorns mit hochfeinpolierter Oberfläche wird eine besonders gute Feinheit und Glattheit der Rohrinnenfläche erzeugt, wobei auch die präzise Querschnittsdimension durch die Matrizenform vorgegeben ist. Sehr vorteilhaft ist es auch, daß das Rohr insbesondere in Form eines gewickelten Rohres als hochpräziser polygonförmiger Hohlkörper herstellbar ist, der insbesondere für einen Einsatzkörper einen Paßquerschnitt zum verdrehsicheren und paßgenauen Positionieren bildet. Dadurch können die Kanalenden am Umfang des Einsatzkörpers auf einfache Weise paßgenau in Position vor die zugeordneten Austrittsöffnungen in der Rohrwand gebracht werden.It is particularly advantageous that the tube made of reinforced Plastic can be provided as a hollow body by plastic and fiber material wrapped around a die can be produced. Using a mandrel with a highly polished finish The surface becomes particularly fine and smooth the inner surface of the tube, the precise Cross-sectional dimension is predetermined by the die shape. It is also very advantageous that the tube, in particular Form of a coiled tube as a highly precise polygonal Hollow body can be produced, in particular for one Insert body has a cross-section to prevent rotation and precise positioning forms. This allows the channel ends easy fit on the circumference of the insert body in position in front of the assigned outlet openings in be brought to the pipe wall.

Das erfindungsgemäße Verteilungsrohr aus verstärktem Kunststoff ist besonders zur Verbindung mit einer Zusatzvorrichtung geeignet, die wenigstens über einen Teil der Rohrlänge mit dem Rohr verbunden ist. Besonders günstig ist es, die Zusatzvorrichtung mit dem Rohr zu verkleben. Dadurch ist eine statisch stabile Gesamteinheit mit vergrößertem Querschnitt hergestellt. Die Zusatzvorrichtung ist bei Druckschablonenmaschinen, insbesondere bei Rundschablonenmaschinen günstigerweise als Rakeleinrichtung ausgebildet. Ein Träger der Zusatzvorrichtung kann eine Leiste aus elastischem Material aufweisen. Diese Leiste kann entweder selbst als Streichrakel ausgebildet sein oder neben einer Rollrakel angeordnet sein.The distribution pipe according to the invention made of reinforced plastic is particularly suitable for connection to an additional device suitable at least over part of the pipe length is connected to the pipe. It is particularly favorable to the additional device to glue to the pipe. This is one statically stable overall unit with enlarged cross-section manufactured. The additional device is in stencil printing machines, Favorably in particular with circular stencil machines designed as a doctor device. A carrier of the Additional device can be a bar made of elastic material exhibit. This bar can either be used as a doctor blade be formed or be arranged next to a doctor blade.

Weitere besonders zweckmäßige und vorteilhafte Ausbildungsformen oder -möglichkeiten der Erfindung gehen aus Unteransprüchen hervor und werden anhand der folgenden Beschreibung der in der schematischen Zeichnung dargestellten Ausführungsbeispiele näher beschrieben. Es zeigen

Fig. 1
ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zum Verteilen von fließfähigem Medium, die ein Farbverteilrohr für eine Rundschablonendruckvorrichtung bildet,
Fig. 1a
den Schnitt gemäß A-A in Fig. 1,
Fig. 2
ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung mit angeklebter Zusatzvorrichtung, die eine Rakeleinrichtung bildet,
Fig. 2a
den Schnitt gemäß B-B in Fig. 2,
Fig. 3
im Längsschnitt ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung, die mit einem ein Kanalsystem aufweisenden Einsatzkörper ausgestattet ist,
Fig. 3a
den Schnitt gemäß C-C in Fig. 3,
Fig. 4 u.5
im Querschnitt ein kreiszylindrisches und ein quadratisches Verteilrohr mit Verteilungskörper und
Fig. 6
die Lage von Strömungskanäle auf einem abgewickelten Umfang eines insgesamt zylindrischen Einsatzkörpers.
Further particularly expedient and advantageous forms or possibilities of embodiment of the invention emerge from the subclaims and are described in more detail with reference to the following description of the exemplary embodiments shown in the schematic drawing. Show it
Fig. 1
1 shows an exemplary embodiment of a device according to the invention for distributing flowable medium, which forms a color distribution tube for a round stencil printing device,
Fig. 1a
the section according to AA in Fig. 1,
Fig. 2
1 shows an embodiment of a device according to the invention with a glued-on additional device which forms a doctor device,
Fig. 2a
the section according to BB in Fig. 2,
Fig. 3
in longitudinal section an embodiment of a device according to the invention, which is equipped with an insert body having a channel system,
Fig. 3a
the section according to CC in Fig. 3,
4 and 5
in cross section a circular cylindrical and a square distribution pipe with distribution body and
Fig. 6
the position of flow channels on a developed circumference of an overall cylindrical insert body.

Ein in Fig. 1 und 1a dargestelltes Farbverteilrohr 1 ist an beiden Enden mit Anschlußsstücken 2 zum Anschluß einer Medium wie Farbe zuführenden Leitung und eines Abschlußstückes ausgestattet. In das Innere des Farbrohres 1 kann unter Druck stehende Farbe eingebracht werden, die verteilt über kleine Durchgangs-Austrittsöffnungen 3 an der Unterseite des Farbrohres aus diesem austritt und dann z.B. auf übliche Weise mittels einer Rakeleinrichtung durch eine Schablone hindurch auf eine Warenbahn aufgetragen wird.A paint distribution tube 1 shown in FIGS. 1 and 1a is on both ends with connectors 2 for connecting a medium like paint supply line and a termination piece. Inside the paint tube 1 can be under pressure standing color can be brought in, distributed over small Through outlet openings 3 on the underside of the paint tube exits this and then e.g. in the usual way by means of a squeegee device through a template is applied to a web.

Erfindungsgemäß besteht die gerade sich erstreckende Wand des Rohres 1 aus carbonfaserverstärktem Kunststoff (CFK), der ein gewichtsmäßig leichter und robuster Verbundwerkstoff ist. Der gerade Rohrabschnitt ist durch ein Hohlzylinderrohr mit Kreisquerschnitt gebildet, dessen Innenwand 10 eine außerordentliche Glattheit und Feinheit aufweist. Zudem ist die Präzision des Zylinderrohres außerordentlich hoch. Das gerade Hohlzylinderrohr wird dadurch erhalten, daß CFK-Material z.B. in Form von wenigstens einem Materialbogen einlagig oder mehrlagig um einen hochfeinpolierten Matrizendorn gewickelt wird. Z.B. wurde ein Rohr erreicht, bei dem die Innendurchmesser an den Rohrenden nur um 0,02 mm von einander abweichen.According to the straight wall of the Tube 1 made of carbon fiber reinforced plastic (CFRP), the one is lightweight and robust composite material. Of the straight pipe section is with a hollow cylindrical pipe Circular cross-section formed, the inner wall 10 of an extraordinary Has smoothness and delicacy. In addition, the precision of the cylinder tube extremely high. That, just now Hollow cylinder tube is obtained by CFRP material e.g. in the form of at least one sheet of material or wrapped in multiple layers around a highly polished die becomes. E.g. a pipe was reached in which the inner diameter only differ by 0.02 mm at the pipe ends.

Bei dem in Fig. 2 und 2a dargestellten Ausführungsbeispiel ist das gerade Hohl-Kreiszylinderrohr des Farbrohres 1 durch Klebeverbindung mit einer insgesamt mit 4 bezeichneten Zusatzvorrichtung verbunden. Die Zusatzvorrichtung 4 ist als Rakelleiteinrichtung ausgebildet, die sich parallel mit dem Rohr erstreckt. Sie weist einen Träger 5 aus Kunststoff, vorzugsweise aus Polyoxymethylen (POM) auf. An dem Träger 5 ist ein der Außenform des Rohres 1 formangepaßter Bereich 5a ausgebildet, der mit dem Rohr 1 verklebt ist. Der Träger 5 ist als statisch günstiges, einer Durchbiegung über die Vorrichtungslänge entgegenwirkendes Hohlprofil mit einem einen oder mehrere Kammern aufweisenden Hohlraum 23 ausgebildet. Die beiden Enden des Trägerhohlprofiles sind mit lösbaren Seitenteilen 6 abgedeckt. In the embodiment shown in FIGS. 2 and 2a is the straight hollow circular cylinder tube of the paint tube 1 through Adhesive connection with a total of 4 designated additional device connected. The additional device 4 is as Squeegee guide formed in parallel with the Tube extends. It has a carrier 5 made of plastic, preferably made of polyoxymethylene (POM). On the carrier 5 is a region 5a adapted to the outer shape of the tube 1, which is glued to the tube 1. The carrier 5 is as a statically favorable, a deflection over the length of the device counteracting hollow profile with a one or cavity 23 having a plurality of chambers. The Both ends of the hollow carrier profile are with detachable side parts 6 covered.

Der Träger 5 der Zusatzvorrichtung 4 weist eine Leiste 7 auf, die vorzugsweise aus elastischem Material wie Gummi besteht. Diese Leiste 7 ist lösbar mit dem Träger 5 verbunden. Zu diesem Zweck weist der Träger 5 eine am Boden erweiterte Nut 8 auf, in die die entsprechend profilierte Leiste 7 in axialer Richtung einschiebbar ist. Die Leiste 7 kann als Streichrakel ausgebildet sein. Bei dem in Fig. 2 und 2a dargestellten Ausführungsbeispiel ist neben der Leiste 7 jedoch noch eine gesonderte Rollrakel 9 angeordnet, so daß an die Genauigkeit der Leiste 7 reduzierte Anforderungen gestellt sind. In der Leiste 7 ist ein Magnet 10 angeordnet, der beim Herausnehmen der gesamten Farbrohreinheit aus einer nicht dargestellten Rundschablone einer Druckmaschine die lose geführte Rollrakel 9 mitnimmt. Im Betrieb wird die Rollrakel 9 in üblicher Weise durch ein Magnetsystem an die Rundschablone und eine Warenbahn angepreßt.The carrier 5 of the additional device 4 has a bar 7, which is preferably made of elastic material such as rubber. This bar 7 is detachably connected to the carrier 5. To this For this purpose, the carrier 5 has a groove 8 widened at the bottom in which the correspondingly profiled bar 7 in axial Direction can be inserted. The bar 7 can be used as a doctor blade be trained. In the embodiment shown in FIGS. 2 and 2a is besides the bar 7, however, a separate one Roller doctor blade 9 arranged so that accuracy the bar 7 are reduced requirements. In the Bar 7 is a magnet 10 is arranged, which when removing the entire color tube unit from a not shown Round stencil of a printing machine the loosely guided squeegee 9 takes away. In operation, the doctor blade 9 is in the usual way thanks to a magnetic system on the round template and a web pressed.

An den Seitenteilen 6 des Trägers 5 sind Rakelführungen 11 lösbar befestigt, die auch als Farbbegrenzer ausgebildet sind.Doctor guides 11 are on the side parts 6 of the carrier 5 releasably attached, which is also designed as a color limiter are.

Ein Farbverteilrohr 1 gemäß Fig. 3 ist in zwei Rohrabschnitte 1a und 1b interteilt. Der Abschnitt la ist durch ein gerades Hohlzylinderrohr gebildet, während der Abschnitt 1b ein gekrümmtes Rohrstück ist. Die Abschnitte 1a und 1b sind durch ein Übergangsstück 16 miteinander verbunden. In das Übergangsstück 16 mündet ein von einem Distanzhalter 17 gehaltenes Zuführrohr 18. An seinem anderen Ende ist das Farbrohr 1 mit einem Stopfen 19 abgeschlossen.A paint distribution pipe 1 according to FIG. 3 is in two pipe sections 1a and 1b divides. Section la is a straight line Hollow cylinder tube formed, while section 1b is a curved one Pipe piece is. Sections 1a and 1b are through a transition piece 16 connected to each other. In the transition piece 16 opens into a held by a spacer 17 Feed pipe 18. At its other end is the paint pipe 1 completed with a plug 19.

Das Übergangsstück 16 mündet an dem dem Zuführrohr 18 gegenüberliegenden Ende in einen Einsatzkörper 20, der in das Innere des Rohrabschnittes 1a form- und paßgenau eingefügt ist. Der Einsatzkörper 20 bildet eine Verteileinrichtung zum gleichmäßigen Verteilen der zugeführten Farbe auf die Austrittsöffnungen 3, die längs des Rohres im Abstand verteilt angeordnet sind. Zu diesem Zweck ist der Einsatzkörper 20 mit Strömungskanälen 21 versehen, die von einer Hauptzuführung 22 ausgehen und durch fortgesetzte Teilung ein symmetrisches Verzweigungssystem bilden. Dieses ist aus der umfangsabgewickelten Darstellung gemäß Fig. 6 ersichtlich. Der Einsatzkörper 20 ist aus Polyethylen gebildet. Aufgrund einer solchen Materialwahl ist es vorteilhaft möglich, daß der Einsatzkörper 20 in Form eines Kunststoff stabes, der durch Kältebehandlung im Querschnittsmaß verringert wird, leichtgängig in den Rohrabschnitt la einbringbar ist. Durch Erwärmen des Materials auf Raumtemperatur dehnt sich der Stab aus, so daß er vollflächig in sattem Klemmsitz zur Anlage gegen die Rohrinnenwand gelangt. So werden die Nuten des Einsatzkörpers umfangsseitig dichtend geschlossen und besonders dichte Übergänge zwischen den öffnungen der Kanalenden des Einsatzkörpers 20 und den Austrittsöffnungen 3 in der Rohrwand 1a hergestellt. Aufgrund der Form- und Maßhaltigkeit des CFK-Rohres treten auch im Betrieb der Vorrichtung keine Spalten zwischen Einsatzkörper 20 und Rohrinnenwand 10 auf.The transition piece 16 opens at the opposite of the feed pipe 18 End in an insert body 20 that is inside the pipe section 1a is inserted in a precise shape and fit. The insert body 20 forms a distribution device for even distribution of the supplied paint to the outlet openings 3, which is spaced along the pipe are arranged. For this purpose, the insert body 20 is included Flow channels 21 provided by a main feed 22nd go out and by continuing division a symmetrical Form branching system. This is from the circumferential 6 can be seen. The insert body 20 is made of polyethylene. Because of one Material choice, it is advantageously possible that the insert body 20 in the form of a plastic rod that is subjected to cold treatment is reduced in cross-sectional dimension, smoothly can be introduced into the pipe section la. By heating the Material expands to room temperature so that he full area in a tight clamp seat against the inner pipe wall reached. So the grooves of the insert body circumferentially sealed and particularly tight transitions between the openings of the channel ends of the insert body 20 and the outlet openings 3 in the tube wall 1a. Due to the shape and dimensional accuracy of the CFRP tube no gaps occur even during operation of the device Insert body 20 and inner tube wall 10.

In Fig. 4 ist der Querschnitt des Rohrabschnittes 1a mit der CFK-Rohrwand und dem kreiszylindrischen Einsatzkörper 20 der Ausführungsform nach Fig. 3a vergrößert dargestellt. Besonders zweckmäßig kann es sein, Rohr- und Einsatzkörperquerschnitt rechteckig und insbesondere quadratisch vorzusehen, wie in Fig. 5 dargestellt.In Fig. 4 is the cross section of the pipe section 1a with the CFRP tube wall and the circular cylindrical insert body 20 of Embodiment according to Fig. 3a shown enlarged. Especially It may be expedient to cross section of the pipe and insert body to provide rectangular and in particular square, as shown in Fig. 5.

Wie aus Fig. 3a und 4 ersichtlich, weist der Einsatzkörper 20 eine dem Innenraum des geraden Rohrabschnittes 1a entsprechende kreiszylindrische Form auf. Die Strömungskanäle 21 sind in die Zylinderoberfläche eingefräste, radial sich erstreckende Nuten. Auch die Hauptzuführung 22 ist als Radialnut ausgebildet.As can be seen from FIGS. 3a and 4, the insert body 20 one corresponding to the interior of the straight pipe section 1a circular cylindrical shape. The flow channels 21 are milled into the cylinder surface, extending radially Grooves. The main feed 22 is also a radial groove educated.

Die erfindungsgemäße Vorrichtung gemäß Fig. 3 und 3a ist wie die Vorrichtung gemäß Fig. 2 und 2a mit einer dort beschriebenen Zusatzvorrichtung 4 ausgestattet. Sowohl der Einsatzkörper 20 als auch die Zusatzvorrichtung 4 unterstützen die durch das faserverstärkte Kunststoffrohr erzielte statische Festigkeit und Formhaltigkeit der Farbrohrvorrichtung. Durch Ausbildung von statisch günstigen Strukturen des Einsatzkörpers 20 z.B. durch die radial angeordneten Nuten und der Zusatzeinrichtung 4 durch den Hohlraum 23 mit mehreren Kammern läßt sich der Durchmesser des Rohres auch bis zu einem gewissen Grad zusätzlich reduzieren. Durch die erfindungsgemäße Materialwahl für das Rohr sowie gegebenenfalls in Kombination mit der genannten Statik der Zusatzvorrichtung lassen sich relativ kleine Rohrquerschnitte insbesondere im Bereich von 7 cm2 bis 25 cm2 erzielen, die für Rohrverteileinrichtungen benötigt werden, die in Siebzylinder-Rundschablonen anzuordnen sind.3 and 3a, like the device according to FIGS. 2 and 2a, is equipped with an additional device 4 described there. Both the insert body 20 and the additional device 4 support the static strength and shape retention of the paint tube device achieved by the fiber-reinforced plastic tube. By forming structurally favorable structures of the insert body 20, for example through the radially arranged grooves and the additional device 4 through the cavity 23 with several chambers, the diameter of the tube can also be reduced to a certain degree. Through the choice of materials for the tube according to the invention and, if appropriate, in combination with the statics of the additional device, relatively small tube cross sections, in particular in the range from 7 cm 2 to 25 cm 2, can be achieved, which are required for tube distribution devices which are to be arranged in screen cylinder round templates.

Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt. Eine erfindungsgemäße Vorrichtung eignet sich zur Breitenverteilung von sehr verschiedenen fließfähigen oder strömungsfähigen Medien, z.B. auch für Klebstoffe.The invention is not based on the illustrated embodiments limited. A device according to the invention is suitable spread the width of very different flowable or flowable media, e.g. also for adhesives.

Claims (12)

  1. A device for distributing a flowable medium, in particular a coloring substance, over the application width of the station of a screen printing machine, comprising a pipe (1) that has at least one medium leading conduit (21, 22) and a plurality of exit openings (3) for the medium that lead outward through the pipe wall from the inside of the pipe, where the exit openings (3) are distributed at distances over the length of the pipe, characterized in that the pipe wall is made of reinforced plastic, at least over part of the pipe length, where the pipe wall made of reinforced plastic constitutes an inner wall (10) that has accurate shape and dimensions, extends straight in the pipe span, and is provided with the exit openings (3).
  2. A device according to claim 1, characterized in that the pipe (1) has an inner pipe cross section that is precisely constant in the accuracy of its shape and dimensions over the length of the inner pipe wall (10) that extends straight in the pipe span, where the shape and dimensional accuracy of the cross section is so great that a maximum diameter deviation relative to a pipe length of at least one meter lies in the region of a fraction of a millimeter and in particular, is smaller than 0.1 mm.
  3. A device according to claim 2, characterized in that at least one insert body (20) that is precisely fitted to the inner pipe chamber, which is accurate in shape and dimensions, is inserted into the inside of the pipe that is embodied as a distribution device for evenly distributing flowable medium supplied to the exit openings (3), where in particular, flow conduits (21)that lead from a main supply line (22) comprise a branching system obtained through repeated division.
  4. A device according to claim 3, characterized in that the insert body (20) is provided as a body that is inserted into the pipe interior in a snug press fit and is preferably comprised of a material that can shrink in size when cooled, so that in the cooled state, the body can be easily slid into the pipe interior and when it heats up to room temperature, assumes a larger profile cross section volume that produces the snug press fit.
  5. A device according to claim 3 or 4, characterized in that the flow conduits (21) are at least partially embodied as grooves that extend radially, particularly in the pipe profile cross section, and are milled or let into the body surface.
  6. A device according to one of claims 3 to 5, characterized in that the insert body (20) is comprised of plastic, preferably of polyethylene.
  7. A device according to one of claims 1 to 6, characterized in that on at least one part of its length, the pipe (1) is embodied as a hollow body in the form of a hollow cylinder of reinforced plastic with the inner pipe wall (10) that is accurate in shape and dimensions.
  8. A device according to one of claims 1 to 6, characterized in that on at least one part of its length, the pipe (1) is embodied as a hollow body that is polygonal in profile cross section, in particular a rectangular pipe of reinforced plastic that is right angled in cross section, with the inner pipe wall (10) that is accurate in form and dimensions.
  9. A device according to claim 7 or 8, characterized in that the hollow body made of reinforced plastic is a wound body that is comprised of pieces of material wound around a die with a polished surface.
  10. The device according to one of claims 1 to 9, characterized in that the inner cross section of the pipe comprised of reinforced plastic is in the range of 7 cm2 to 25 cm2.
  11. The device according to one of claims 1 to 10, characterized in that the reinforced plastic of the pipe wall is a fiber reinforced plastic, preferably a carbon fiber reinforced plastic (CFK).
  12. The device according to one of claims 1 to 11, characterized in that a supplemental device (4) provided for applying medium is disposed on the outside of the pipe (1), preferably attached to the pipe (1) with adhesive, and in particular, is embodied as a doctor device that extends parallel to the straight pipe (1) that is comprised of reinforced plastic and preferably has a single-chamber or multi-chamber hollow profile (23).
EP19960250109 1995-05-18 1996-05-18 Device for distributing flowable media Expired - Lifetime EP0743181B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT842/95 1995-05-18
AT0084295A AT405040B (en) 1995-05-18 1995-05-18 DEVICE FOR DISTRIBUTING FLOWABLE MEDIA

Publications (2)

Publication Number Publication Date
EP0743181A1 EP0743181A1 (en) 1996-11-20
EP0743181B1 true EP0743181B1 (en) 1999-04-21

Family

ID=3501028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960250109 Expired - Lifetime EP0743181B1 (en) 1995-05-18 1996-05-18 Device for distributing flowable media

Country Status (5)

Country Link
US (1) US5848606A (en)
EP (1) EP0743181B1 (en)
AT (2) AT405040B (en)
DE (1) DE59601689D1 (en)
ES (1) ES2133894T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1000437C2 (en) * 1995-05-24 1996-06-19 Stork Brabant Bv Squeegee made of fiber-reinforced plastic.
MY133638A (en) * 1999-10-18 2007-11-30 Stork Screens B V A Dutch Company Printing forme for rotary screen printing made from fibre-reinforced plastics material
BR112016007248A2 (en) * 2013-10-03 2017-08-01 Total Sa safety device against leakage; place equipped with such a device; associated method of security against a leak
DE202014101774U1 (en) * 2014-04-15 2014-05-14 Cts Cooling Tower Solutions Gmbh liquid distribution

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520623B2 (en) * 1975-05-09 1980-07-31 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Fiber-reinforced plastic tube
DE3106273A1 (en) * 1981-02-20 1982-09-09 Ten Cate Sports B.V., 7602 Almelo "TUBE BODY MADE OF HYBRID FIBER REINFORCED PLASTIC"
US4550681A (en) * 1982-10-07 1985-11-05 Johannes Zimmer Applicator for uniformly distributing a flowable material over a receiving surface
AT376612B (en) * 1982-10-07 1984-12-10 Johannes Zimmer EQUIPMENT FOR EVEN OR REGULAR DISTRIBUTION OF FLOWABLE MEDIA IN PRESET WIDTH
CH655986A5 (en) * 1984-03-16 1986-05-30 Pabreco Sa METHOD FOR MANUFACTURING A COMPOSITE TUBE.
AT380089B (en) * 1984-04-11 1986-04-10 Hobas Durotec Rohre Ges M B H TUBE MADE OF FIBER REINFORCED, CURABLE PLASTIC, METHOD FOR PRODUCING THE SAME AND DEVICE FOR IMPLEMENTING THE METHOD
IT1218124B (en) * 1987-02-03 1990-04-12 Reggiani Macchine Spa PROCEDURE AND RELATED EQUIPMENT FOR THE AUTOMATIC WASHING, DIRECTLY INTO THE MACHINE, OF ALL THE COMPONENTS OF THE PRINTING UNITS FOR ROTARY CYLINDER PRINTING MACHINES
US4922958A (en) * 1987-08-03 1990-05-08 Colt Industries Inc. Manifold for distributing a fluid and method for making same
US4840018A (en) * 1988-03-28 1989-06-20 Deere & Company Lubrication distribution system for a cotton harvester
JPH04122631A (en) * 1990-09-13 1992-04-23 Petoca:Kk Carbon fiber reinforced plastic tubular material and manufacture thereof
US5474102A (en) * 1991-07-15 1995-12-12 Lopez; Robert Fluid distribution manifold
DE9302207U1 (en) * 1993-02-12 1994-06-09 Zimmer Johannes Device for the spreading application of flowable substances
ATE158631T1 (en) * 1993-07-28 1997-10-15 Vsb Vogelsberger Umwelttechnis ARRANGEMENT FOR THE EXCEPTION OF CONTAMINANTS, PARTICULARLY COARSE MATERIALS, IN SEPARATION STRUCTURES FOR WATER PROTECTION, SUCH AS RAINWATER RELIEF STRUCTURES

Also Published As

Publication number Publication date
EP0743181A1 (en) 1996-11-20
DE59601689D1 (en) 1999-05-27
US5848606A (en) 1998-12-15
AT405040B (en) 1999-04-26
ATA84295A (en) 1998-09-15
ATE179119T1 (en) 1999-05-15
ES2133894T3 (en) 1999-09-16

Similar Documents

Publication Publication Date Title
DE2807291C2 (en) Apparatus for introducing a liquid sample into a stream of carrier liquid
DE3116289C2 (en) Clamping mandrel with an elastic, hydraulically expandable clamping sleeve
EP0894042B1 (en) Form for rotary printing, coating or embossing of sheet-like materials, and process for producing said form
WO1997014511A1 (en) Flow-dividing arrangement
EP0406172A2 (en) Apparatus for mounting of a soft-elastic layer on rolls of graphic machines
DE3533735C2 (en)
DE2918294A1 (en) CYLINDER FOR A PNEUMATIC ELEMENT
DE102005009348B4 (en) Adaptable sliding bearing for telescopic crane jib
EP0743181B1 (en) Device for distributing flowable media
DE8532300U1 (en) Roller tube for printing machines with an exchangeable jacket tube
DE2743017B2 (en) Coolant shower for peripheral grinding wheels
DE202017104354U1 (en) Device for the hydrodynamic removal of imperfections in the interior of pipelines, in particular for the rehabilitation and cleaning of water-bearing pipelines in domestic, municipal and industrial areas
WO2000032409A1 (en) Sleeve made of thermally deformable material and method for producing the same
DE2355188C3 (en) FIBER TIP
DE102019215768A1 (en) Embossing device and use related thereto
DE2639665C2 (en) Extrusion head for producing a hollow strand from thermoplastic material
EP0234424B1 (en) Apparatus for applying paint to surfaces
DE2058955B2 (en) METHOD AND APPARATUS FOR MANUFACTURING A RUBBER ROLLER
EP0797509B1 (en) Hollow molding support beam of an applicator-doctor blade device and process for producing the support beam
DE3439051A1 (en) Headbox device for a papermachine
DE2924437C2 (en) Device for expanding and calibrating welded steel pipes
EP1697137B1 (en) Support cylinder for a removable printing sleeve
DE102004004932B3 (en) Continuous manufacture of reinforced plastic pipe, supports loose sheet tubing on gas cushion formed over mandrel whilst applying equal pressure externally from outer gas jets
DE10306196B3 (en) Ink transfer roller
DE3425660A1 (en) NOZZLE FOR PLASTIC SPRAYING MACHINES

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19970319

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19980612

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL

REF Corresponds to:

Ref document number: 179119

Country of ref document: AT

Date of ref document: 19990515

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990518

REF Corresponds to:

Ref document number: 59601689

Country of ref document: DE

Date of ref document: 19990527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990531

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990720

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2133894

Country of ref document: ES

Kind code of ref document: T3

BERE Be: lapsed

Owner name: J. ZIMMER MASCHINENBAU G.M.B.H. KUFSTEIN

Effective date: 19990531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20090424

Year of fee payment: 14

Ref country code: ES

Payment date: 20090520

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090430

Year of fee payment: 14

Ref country code: FR

Payment date: 20090519

Year of fee payment: 14

Ref country code: DE

Payment date: 20090528

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090528

Year of fee payment: 14

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20101201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100518

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100518

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100518

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100519