WO2005105403A1 - Delivering element and associated device - Google Patents

Delivering element and associated device Download PDF

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Publication number
WO2005105403A1
WO2005105403A1 PCT/EP2005/001098 EP2005001098W WO2005105403A1 WO 2005105403 A1 WO2005105403 A1 WO 2005105403A1 EP 2005001098 W EP2005001098 W EP 2005001098W WO 2005105403 A1 WO2005105403 A1 WO 2005105403A1
Authority
WO
WIPO (PCT)
Prior art keywords
outlet openings
openings
sleeve
outlet
die
Prior art date
Application number
PCT/EP2005/001098
Other languages
German (de)
French (fr)
Inventor
Wolfgang Grassberger
Original Assignee
Knoch, Kern & Co.
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 Knoch, Kern & Co. filed Critical Knoch, Kern & Co.
Publication of WO2005105403A1 publication Critical patent/WO2005105403A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/36—Feeding the material on to the mould, core or other substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Definitions

  • the invention relates to a feed member for fluid and solid substances in a rotating die for the production of flung, glass fiber reinforced tubes and an associated device.
  • the wall of such a plastic tube is formed from individual layers.
  • different substances in particular resins (synthetic resins), resin mixtures, fillers, chemical additives, glass fibers, etc.
  • the die can be arranged to rotate in a stationary manner.
  • the device, the so-called “feeder”, with the feed element is then guided axially into the die through an opening therein.
  • the substances mentioned are transported along the device to the end, the so-called feeder head, and there radially into the rotating die In this way, the individual wall layers of the pipe to be created are gradually built up.
  • the feeder is inserted axially into and out of the die.
  • the resin feed into the feed element (part of the feeder head) is activated before the feed element has passed the entry opening into the die. This is the only way to ensure that the corresponding layer is created over the entire length of the die. Associated with this is the disadvantage that resin runs out of the feed element before it is completely moved into the die. The entry area of the die is dirty and expensive raw materials are lost.
  • the object of the invention is to specify a way in which the layer structure for creating a tube wall can be made more uniform, the material loss mentioned being avoided as well as contamination, in particular in the entry region of the die.
  • the feed element preferably has a plurality of outlet openings for the respective (fluid or solid) substance.
  • these outlet openings are arranged one behind the other in the axial direction of the feed element. This means that when the delivery member is inserted into the die, some exit openings are already inside the die, while other exit openings are placed in front of the entry opening of the die. With such a position of the feed member, the problem mentioned would arise that part of the material would be discharged into the die before the feed member entered and would be lost.
  • exit openings can be closed individually.
  • the exit openings that have already passed the entry opening to the die can be released in a targeted manner.
  • the exit openings that are still outside the die remain closed.
  • the invention relates to a supply member for fluid and solid substances in a rotating die for the production of flung, glass fiber reinforced tubes, with the following features:
  • the body can be connected at a first end to at least one feed line for the respective substance
  • At least one axially extending channel runs in the body and ends at an opposite end of the body
  • nozzle-like outlet openings run radially from the channel through the body to its surface
  • the exit openings can be closed in whole or in part in a selectable number and arrangement.
  • the feeder can be used for various substances. It is particularly suitable for the passage of liquid (or viscous) resins, for example unsaturated polyester resins, as are customary for centrifuged pipes of the generic type.
  • the respective resin or resin mixture can be transported as such or in combination with other substances such as fillers, additives (for the resin) or glass fibers.
  • the feed element is also suitable for the passage and feed of solid, for example powdery substances, for example pure fillers, such as calcium carbonate powder or sand (quartz sand).
  • cut glass fibers can also be applied alone or together with other substances using the feed element.
  • the rod-shaped body can have a cylindrical surface, for example. But it can also be designed in the manner of a cone or truncated cone.
  • At least one channel runs in the body coaxially to the central longitudinal axis of the body, which can be connected at a first end to a supply line for the substance (s) and is closed at its second end (the free end of the supply member).
  • the substance is first fed continuously from the feed line into the channel and from there into a number of nozzle-like outlet openings which extend radially through the wall of the body to its surface.
  • the outlet openings can run exactly radially, ie perpendicular to the central longitudinal axis of the feed element. But they can also be arranged inclined, for example in the feed direction into the die.
  • the outlet openings can be completely or partially closed or opened in a preselectable number and arrangement.
  • design options available, only a few of which are listed below:
  • Each individual outlet opening can be designed with a valve.
  • Each individual outlet opening can be designed with a flap or with a slide.
  • Each individual outlet opening can be completely or partially sealed off by a cover.
  • groups of exit openings can be formed together.
  • shut-off devices must be able to be activated via a control in order to open or close the individual outlet openings or groups of outlet openings at the right time from a monitoring station.
  • the outlet openings can have a circular cross section. However, any other cross-sectional shape is also conceivable.
  • the outlet openings can be arranged one behind the other along at least one axially or curved line.
  • a sleeve provided with openings runs on the body of the feed element, the body and the sleeve being displaceable relative to one another.
  • the sleeve serves as a closure organ for the outlet openings of the body. If an opening of the sleeve is congruent with an outlet opening of the body, material can escape. If the sleeve partially covers the outlet opening of the body, there is less material leakage. If the sleeve completely covers the outlet opening of the body, the material supply is interrupted at this point.
  • the openings of the sleeve are matched to the outlet openings of the body in such a way that these - viewed in the axial direction of the feed member - can be opened or closed one after the other.
  • one embodiment provides for the openings of the sleeve to be in the form of a slot, the longitudinal axis of the slot extending in the circumferential direction of the sleeve.
  • the outlet openings of the body are arranged along an axially extending line, while the openings of the sleeve run along a curved line (as explained in more detail below in the figures), a simple rotation of the sleeve can make a different one Number of outlet openings of the body are released or blocked.
  • the same goal can also be achieved conversely if the openings of the sleeve run at a distance from one another along an axial line, while the outlet opening of the body lie along a curve section.
  • the body can also be assembled rotatably in a stationary sleeve.
  • the sleeve and body can be rotatably connected to one another via at least one toothed ring.
  • the sleeve and body can be moved towards each other using a linkage.
  • the sleeve or body can be moved against each other using pneumatic or hydraulic devices.
  • the number of openings in the sleeve corresponds to the number of outlet openings in the body.
  • it can appropriate geometric design of the openings in the sleeve can be ensured that the outlet openings of the body are not released or blocked at the same time.
  • the number of openings and their geometric design can be completely different from the number of outlet openings in the body and their design. According to the invention, the only thing that matters is the functional aspect of opening or closing off the outlet openings according to a preselectable scheme.
  • the arrangement and dimensioning of the channel and / or the outlet openings can be selected so that at a given delivery pressure (for the substance or substances) there is a uniform substance outlet through all outlet openings. Due to a pressure loss along the delivery line or the channel, it can happen that more or less material escapes through individual outlet openings than through other outlet openings. This can be avoided by the above-mentioned constructive design of the channel or the exit openings. Specifically, the size of the individual outlet openings (viewed in the conveying direction of the feed member) can become larger and / or the internal cross section of the channel can be smaller.
  • the feed element described is advantageous not only when it is inserted into the die.
  • the advantages described can also be used at the end of the die if the direction of movement of the device or die is changed. But also during the path of the feed member through the die, the feed member can be used advantageously, for example, by reducing or increasing the delivery rate, by changing the outlet cross section of some or all of the outlet openings.
  • the invention also includes a device for supplying fluid and solid substances into a rotating die for the production of flung, glass fiber reinforced tubes, which is equipped with a supply member of the type mentioned.
  • the feed element is connected at its first end to at least one feed line for the substance (s).
  • the device further comprises a control which activates means with which the outlet opening (s) are completely or partially blocked or released.
  • This device also known as “feeder” in the prior art, also includes, for example, a filling station in which the various substances, in particular glass fibers, sand (quartz sand), resin, catalyst (for the resin), additives or other fillers are provided.
  • a filling station in which the various substances, in particular glass fibers, sand (quartz sand), resin, catalyst (for the resin), additives or other fillers are provided.
  • the transport of these Starting materials are supplied through pipelines of different diameters along a feed arm to the so-called head of the device at the other (free) end, at which the feed element according to the invention is located, among other things
  • the head of the device can be equipped with a cutting device for glass fiber yarns, as described in WO 00/56525.
  • control system is programmed specifically for the plant.
  • the control can, for example, be such that the means (for opening or closing the outlet openings) are activated in such a way that the outlet openings successively, starting at the second end of the feed element be released as soon as the corresponding exit openings have passed an entry opening of the associated die.
  • the control can be such that the exit openings, starting at the first end of the feed element, are successively blocked off as soon as the corresponding exit openings leave the entry opening of the die again.
  • FIG 1 A perspective view of the feed member
  • Figure 2 A body of the feed member according to Figure 1
  • FIG. 3 A sleeve of the feed member according to Figure 1
  • Figure 4 A view of the feed member from the front
  • FIG. 1 shows a feed element, which bears the overall reference number 10 and has a first, open end 10. 1. With this end 10.1, the feed member 10 can be connected to a feed line (not shown) of a loading arm.
  • This open end 10J is also the open end of a channel 12, which runs concentrically to the central longitudinal axis of the body 14 of the feed element 10 shown in FIG. 2 and ends at the opposite second end 10.2.
  • J l is also the open end of a channel 12, which runs concentrically to the central longitudinal axis of the body 14 of the feed element 10 shown in FIG. 2 and ends at the opposite second end 10.2.
  • a plurality of outlet openings 16 run radially from the channel 12 through a wall of the body 14 up to its cylindrical surface 14o. According to FIG. 2, a total of 14 outlet openings 16 are arranged in the illustrated embodiment, 7 each in two axially extending rows arranged next to one another, the outlet openings of one row being somewhat offset from the outlet openings of the other row.
  • the outlet openings 16 each have a circular cross section with a diameter of approximately 3 mm.
  • a sleeve 18 On the surface 14o of the body 14 is a sleeve 18, which is formed with a total of 14 openings 20.
  • Each opening 20 has a slot shape, the longitudinal axis running in the circumferential direction of the sleeve 18.
  • the arrangement of the openings 20 is such that the openings 20 can be brought into a position in which they lie above the outlet openings 16.
  • the sleeve 1 8 is rotatably arranged on the body 14.
  • two radially projecting flanges 22 are provided on the sleeve 18 on the circumference, on which a telescopic arm 24 is pivotally articulated at one end.
  • an arm 26 is pivotally articulated, which is attached to the outside of the body 14.
  • the slot-like openings 20 are arranged along a line curved in the axial direction. As shown in FIG. 1, individual outlet openings 1 6 are thereby located at different points in the Corresponding slots 20. If the sleeve 18 were displaced in the direction of the arrow P 1, the outlet openings 16 adjacent to the opening 10.1 would be covered by the sleeve 18 immediately thereafter and thus closed. The outlet openings 16 lying behind in the direction of the other end 10.2 would be partially covered by the sleeve, while the outlet openings 16 lying at the opposite end 10.2 would still lie completely in the opening region of the slots 20.
  • outlet openings 16 can be opened or closed at one end (10.1 or 10.2), for example, when the feed member is inserted into a die, while the outlet openings would still be closed or could be opened at the other end.
  • the telescopic arm 24 is connected to a corresponding motor drive unit and a controller to carry out the desired angular displacement of the sleeve 1 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulding By Coating Moulds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention relates to an element for delivering fluid and solid substances into a rotating matrix so as to produce glass fiber-reinforced centrifuge tubes and an associated device. The delivering element comprises a rod-shaped body in which at least one channel extends in an axial direction and several nozzle-type discharge ports for the respective substance, a preselected number and arrangement of said discharge ports being fully or partly closable.

Description

,Zuführorgan und zugehörige Vorrichtung' 'Feeder and associated device'
B e s c h r e i b u n gDescription
Die Erfindung betrifft ein Zuführorgan für fluide und feste Substanzen in eine rotierende Matrize zur Herstellung von geschleuderten, glasfaserverstärkten Rohren sowie eine zugehörige Vorrichtung.The invention relates to a feed member for fluid and solid substances in a rotating die for the production of flung, glass fiber reinforced tubes and an associated device.
Geschleuderte Kunststoffrohre und Verfahren zu ihrer Herstellung werden beispielhaft in der EP 360 758 A2 und CH 684 326 A5 beschrieben.Flung plastic pipes and processes for their production are described by way of example in EP 360 758 A2 and CH 684 326 A5.
Die Wand eines solchen Kunststoffrohres wird aus einzelnen Schichten gebildet. Zur Bildung dieser Schichten werden unterschiedliche Substanzen, insbesondere Harze(Kunstharze), Harzmischungen, Füllstoffe, chemische Zusatzstoffe, Glasfasern, etc. einzeln oder in unterschiedlichen Kombinationen mit Hilfe der genannten Vorrichtung einer rotierenden Matrize zugeführt. Dabei kann die Matrize stationär drehend angeordnet sein. Die Vorrichtung, der so genannte „Feeder", mit dem Zuführorgan wird dann axial über eine Öffnung der Matrize in diese hinein geführt. Die genannten Substanzen werden entlang der Vorrichtung bis zu deren Ende, dem so genannten Feederkopf, transportiert und dort radial in die rotierende Matrize abgegeben. Auf diese Weise werden die einzelnen Wandschichten des zu erstellenden Rohres nach und nach aufgebaut.The wall of such a plastic tube is formed from individual layers. To form these layers, different substances, in particular resins (synthetic resins), resin mixtures, fillers, chemical additives, glass fibers, etc., are fed individually or in different combinations to a rotating die using the device mentioned. The die can be arranged to rotate in a stationary manner. The device, the so-called “feeder”, with the feed element is then guided axially into the die through an opening therein. The substances mentioned are transported along the device to the end, the so-called feeder head, and there radially into the rotating die In this way, the individual wall layers of the pipe to be created are gradually built up.
Sind mehrere Matrizen nebeneinander angeordnet können diese zum Beschicken mit den genannten Substanzen zur Vorrichtung (zum Feeder) geführt werden oder umgekehrt.If several matrices are arranged next to one another, these can be guided to the device (to the feeder) for loading with the substances mentioned, or vice versa.
In allen Fällen wird der Feeder aber axial in die Matrize hineingeführt und aus dieser wieder heraus. Um beispielsweise eine reine Harzschicht auszubilden wird die Harzzufuhr in das Zuführorgan (Bestandteil des Feederkopfes) bereits aktiviert, bevor das Zuführorgan die Eintrittsöffnung in die Matrize passiert hat. Nur so kann bisher sichergestellt werden, dass die entsprechende Schicht über die gesamte Länge der Matrize erstellt wird. Damit verbunden ist der Nachteil, dass Harz aus dem Zuführorgan ausläuft, bevor dieses vollständig in die Matrize verschoben ist. Der Eintrittsbereich der Matrize verschmutzt und teure Rohstoffe gehen verloren.In all cases, however, the feeder is inserted axially into and out of the die. In order to form a pure resin layer, for example, the resin feed into the feed element (part of the feeder head) is activated before the feed element has passed the entry opening into the die. This is the only way to ensure that the corresponding layer is created over the entire length of the die. Associated with this is the disadvantage that resin runs out of the feed element before it is completely moved into the die. The entry area of the die is dirty and expensive raw materials are lost.
Analoge Probleme entstehen, wenn das Zuführorgan wieder aus der Matrize herausgeführt wird.Analogous problems arise when the feed element is guided out of the die again.
Ein weiterer Nachteil besteht darin, dass die Schichtdicke in Axialrichtung des Rohres nicht die gewünschte Gleichmäßigkeit besitzt, da - in Axialrichtung betrachtet - unterschiedliche Substanzmengen aus dem Zuführorgan gefördert werden. Aufgabe der Erfindung ist es, eine Möglichkeit anzugeben, wie der Schichtaufbau zur Erstellung einer Rohrwand vergleichmäßigt werden kann, wobei der genannte Materialverlust ebenso vermieden werden soll wie Verschmutzungen insbesondere im Eintrittsbereich der Matrize.Another disadvantage is that the layer thickness in the axial direction of the tube does not have the desired uniformity, since - viewed in the axial direction - different amounts of substance are conveyed out of the feed element. The object of the invention is to specify a way in which the layer structure for creating a tube wall can be made more uniform, the material loss mentioned being avoided as well as contamination, in particular in the entry region of the die.
Die Erfindung geht von folgender Überlegung aus: Vorzugsweise weist das Zuführorgan mehrere Austrittsoffnungen für die jeweilige (fluide oder feste) Substanz auf. Schon aus Platzgründen sind diese Austrittsoffnungen in Axialrichtung des Zuführorgans hintereinander angeordnet. Das bedeutet, dass beim Einführen des Zuführorgans in die Matrize einige Austrittsoffnungen bereits innerhalb der Matrize liegen, während andere Austrittsoffnungen noch vor der Eintrittsöffnung der Matrize platziert sind. Bei einer solchen Position des Zuführorgans würde das erwähnte Problem auftreten, dass ein Teil des Materials noch vor Eintritt des Zuführorgans in die Matrize ausgetragen wird und verloren geht.The invention is based on the following consideration: The feed element preferably has a plurality of outlet openings for the respective (fluid or solid) substance. For reasons of space alone, these outlet openings are arranged one behind the other in the axial direction of the feed element. This means that when the delivery member is inserted into the die, some exit openings are already inside the die, while other exit openings are placed in front of the entry opening of the die. With such a position of the feed member, the problem mentioned would arise that part of the material would be discharged into the die before the feed member entered and would be lost.
Dieser Nachteil lässt sich vermeiden, wenn die Austrittsoffnungen einzeln verschließbar sind. In diesem Fall können gezielt die Austrittsoffnungen freigegeben werden, die bereits die Eintrittsöffnung zur Matrize passiert haben. Die noch außerhalb der Matrize liegenden Austrittsoffnungen bleiben dagegen verschlossen.This disadvantage can be avoided if the exit openings can be closed individually. In this case, the exit openings that have already passed the entry opening to the die can be released in a targeted manner. However, the exit openings that are still outside the die remain closed.
Damit ist sichergestellt, dass die jeweilige Substanz vollständig zum Schichtaufbau der Wand des zu erstellenden Rohres genutzt werden kann. Jeder Materialverlust wird vermieden. Verschmutzungen treten nicht mehr auf. Außerdem kann die Wandstärke in Axialrichtung des Rohres vergleichmäßigt werden, da über die gesamte Axiallänge des zu bildenden Rohres eine konstante Materialmenge aufgetragen wird. In ihrer allgemeinsten Ausführungsform betrifft die Erfindung ein Zuführorgan für fluide und feste Substanzen in eine rotierende Matrize zur Herstellung von geschleuderten, glasfaserverstärkten Rohren, mit folgenden Merkmalen:This ensures that the respective substance can be used completely to build up the layer of the wall of the pipe to be created. Any loss of material is avoided. Soiling no longer occurs. In addition, the wall thickness in the axial direction of the tube can be made more uniform since a constant amount of material is applied over the entire axial length of the tube to be formed. In its most general embodiment, the invention relates to a supply member for fluid and solid substances in a rotating die for the production of flung, glass fiber reinforced tubes, with the following features:
- einem stabförmigen Körper,- a rod-shaped body,
- der Körper ist an einem ersten Ende an mindestens eine Zuführleitung für die jeweilige Substanz anschließbar,the body can be connected at a first end to at least one feed line for the respective substance,
- in Verlängerung der Zuführleitung verläuft im Körper mindestens ein axial verlaufender Kanal, der an einem gegenüberliegenden Ende des Körpers endet,- in the extension of the feed line, at least one axially extending channel runs in the body and ends at an opposite end of the body,
- vom Kanal verlaufen mehrere düsenartige Austrittsoffnungen radial durch den Körper bis zu dessen Oberfläche,several nozzle-like outlet openings run radially from the channel through the body to its surface,
- die Austrittsoffnungen sind in vorwählbarer Zahl und Anordnung ganz oder teilweise schließbar.- The exit openings can be closed in whole or in part in a selectable number and arrangement.
Das Zuführorgan kann für verschiedene Substanzen verwendet werden. Es ist besonders geeignet für die Durchleitung von flüssigen (oder viskosen) Harzen, beispielsweise ungesättigten Polyesterharzen, wie sie für gattungsgemäße geschleuderte Rohre üblich sind. Dabei kann das j eweilige Harz oder die Harzmischung als solche oder in Kombination mit weiteren Substanzen, wie Füllstoffen, Additiven (für das Harz) oder Glasfasern transportiert werden. Ebenso ist das Zuführorgan aber auch für die Durchleitung und Zuführung von festen, beispielsweise pulverförmigen Substanzen geeignet, beispielsweise reinen Füllstoffen, wie Calciumcarbonat-Pulver oder Sand (Quarzsand). Ebenso lassen sich aber beispielsweise auch geschnittene Glasfasern mit dem Zuführorgan alleine oder zusammen mit anderen Substanzen ausbringen. Der stabförmige Körper kann beispielsweise eine zylinderförmige Oberfläche aufweisen. Er kann aber auch nach Art eines Kegels oder Kegelstumpfes gestaltet sein. Beispielsweise koaxial zur Mittenlängsachse des Körpers verläuft im Körper mindestens ein Kanal, der an einem ersten Ende an eine Zuführleitung für die Substanz(en) angeschlossen werden kann und an seinem zweiten Ende (dem freien Ende des Zuführorgans) geschlossen ist. Auf diese Weise wird die Substanz von der Zuführleitung kontinuierlich zunächst in den Kanal geführt und von dort aus in mehrere düsenartige Austrittsoffnungen, die sich radial durch die Wand des Körpers bis zu dessen Oberfläche erstrecken. Dabei können die Austrittsoffnungen exakt radial verlaufen, also senkrecht zur Mittenlängsachse des Zuführorgans. Sie können aber auch geneigt angeordnet sein, beispielsweise in Zuführrichtung in die Matrize.The feeder can be used for various substances. It is particularly suitable for the passage of liquid (or viscous) resins, for example unsaturated polyester resins, as are customary for centrifuged pipes of the generic type. The respective resin or resin mixture can be transported as such or in combination with other substances such as fillers, additives (for the resin) or glass fibers. However, the feed element is also suitable for the passage and feed of solid, for example powdery substances, for example pure fillers, such as calcium carbonate powder or sand (quartz sand). Likewise, for example, cut glass fibers can also be applied alone or together with other substances using the feed element. The rod-shaped body can have a cylindrical surface, for example. But it can also be designed in the manner of a cone or truncated cone. For example, at least one channel runs in the body coaxially to the central longitudinal axis of the body, which can be connected at a first end to a supply line for the substance (s) and is closed at its second end (the free end of the supply member). In this way, the substance is first fed continuously from the feed line into the channel and from there into a number of nozzle-like outlet openings which extend radially through the wall of the body to its surface. The outlet openings can run exactly radially, ie perpendicular to the central longitudinal axis of the feed element. But they can also be arranged inclined, for example in the feed direction into the die.
Erfindungsgemäß können die Austrittsoffnungen in vorwählbarer Zahl und Anordnung ganz oder teilweise geschlossen beziehungsweise geöffnet werden. Dazu stehen zahlreiche konstruktive Möglichkeiten zur Verfügung, von denen nachstehend nur einige genannt sind:According to the invention, the outlet openings can be completely or partially closed or opened in a preselectable number and arrangement. There are numerous design options available, only a few of which are listed below:
- Jede einzelne Austrittsöffnung kann mit einem Ventil ausgebildet sein.- Each individual outlet opening can be designed with a valve.
- Jede einzelne Austrittsöffnung kann mit einer Klappe oder mit einem Schieber ausgebildet sein.- Each individual outlet opening can be designed with a flap or with a slide.
- Jede einzelne Austrittsöffnung kann von einem Deckel ganz oder teilweise abgedichtet werden.- Each individual outlet opening can be completely or partially sealed off by a cover.
Ebenso können Gruppen von Austrittsoffnungen gemeinsam ausgebildet sein.Likewise, groups of exit openings can be formed together.
Es ist selbstverständlich, dass die entsprechenden Absperrorgane über eine Steuerung aktivierbar sein müssen, um von einer Überwachungsstation die einzelnen Austrittsoffnungen oder Gruppen von Austrittsoffnungen zum richtigen Zeitpunkt zu öffnen beziehungsweise zu schließen. Die Austrittsoffnungen können einen Kreisquerschnitt aufweisen. Ebenso ist aber auch jede andere Querschnittsform denkbar.It goes without saying that the corresponding shut-off devices must be able to be activated via a control in order to open or close the individual outlet openings or groups of outlet openings at the right time from a monitoring station. The outlet openings can have a circular cross section. However, any other cross-sectional shape is also conceivable.
Die Austrittsoffnungen können entlang mindestens einer axial oder gekrümmt verlaufenden Linie hintereinander angeordnet werden.The outlet openings can be arranged one behind the other along at least one axially or curved line.
Nach einer, nachstehend auch zeichnerisch dargestellten Ausführungsform der Erfindung verläuft auf dem Körper des Zuführorgans eine mit Öffnungen versehene Hülse, wobei der Körper und die Hülse relativ zueinander verschiebbar sind. Dabei dient die Hülse als Verschlussorgan für die Austrittsoffnungen des Körpers. Ist eine Öffnung der Hülse mit einer Austrittsöffnung des Körpers deckungsgleich kann Material austreten. Überdeckt die Hülse die Austrittsöffnung des Körpers teilweise erfolgt ein verringerter Materialaustritt. Überdeckt die Hülse die Austrittsöffnung des Körpers vollständig ist die Materialzufuhr an dieser Stelle unterbrochen.According to one embodiment of the invention, which is also shown below in the drawing, a sleeve provided with openings runs on the body of the feed element, the body and the sleeve being displaceable relative to one another. The sleeve serves as a closure organ for the outlet openings of the body. If an opening of the sleeve is congruent with an outlet opening of the body, material can escape. If the sleeve partially covers the outlet opening of the body, there is less material leakage. If the sleeve completely covers the outlet opening of the body, the material supply is interrupted at this point.
Im Sinne der Erfindung sind die Öffnungen der Hülse so auf die Austrittsoffnungen des Körpers abgestimmt, dass diese - in Axialrichtung des Zuführorgans betrachtet - nacheinander geöffnet beziehungsweise verschlossen werden können.In the sense of the invention, the openings of the sleeve are matched to the outlet openings of the body in such a way that these - viewed in the axial direction of the feed member - can be opened or closed one after the other.
Eine Ausführungsform sieht dazu vor, die Öffnungen der Hülse in Schlitzform auszubilden, wobei die Längsachse des Schlitzes in Umfangsrichtung der Hülse verläuft.For this purpose, one embodiment provides for the openings of the sleeve to be in the form of a slot, the longitudinal axis of the slot extending in the circumferential direction of the sleeve.
Sind beispielsweise die Austrittsoffnungen des Körpers entlang einer axial verlaufenden Linie angeordnet, während die Öffnungen der Hülse entlang einer gekrümmten Linie verlaufen (wie nachstehend in den Figuren näher erläutert) kann durch einfache Drehung der Hülse eine unterschiedliche Anzahl von Austrittsoffnungen des Körpers freigegeben beziehungsweise abgesperrt werden. Das gleiche Ziel lässt sich auch umgekehrt erreichen, wenn die Öffnungen der Hülse mit Abstand zueinander entlang einer axialen Linie verlaufen, während die Austrittsöffnung des Körpers entlang eines Kurvenabschnitts liegen.For example, if the outlet openings of the body are arranged along an axially extending line, while the openings of the sleeve run along a curved line (as explained in more detail below in the figures), a simple rotation of the sleeve can make a different one Number of outlet openings of the body are released or blocked. The same goal can also be achieved conversely if the openings of the sleeve run at a distance from one another along an axial line, while the outlet opening of the body lie along a curve section.
Der Vorteil der zuletzt beschriebenen Ausführungsformen liegt darin, dass mit einem einzigen Bauteil, nämlich der Hülse, sämtliche Austrittsoffnungen des Körpers freigegeben beziehungsweise abgesperrt werden können, und zwar in unterschiedlicher Zahl und Abfolge.The advantage of the last-described embodiments lies in the fact that with a single component, namely the sleeve, all outlet openings of the body can be released or blocked, in different numbers and sequences.
Ebenso kann der Körper drehbar in einer stationär verlaufenden Hülse konfektioniert sein.The body can also be assembled rotatably in a stationary sleeve.
Es ist selbstverständlich, dass entsprechende Antriebsmittel zur Drehung der Hülse und/oder des Körpers vorgesehen werden müssen. Auch hierzu stehen verschiedene Möglichkeiten im Stand der Technik zur Verfügung, von denen nachstehend beispielhaft einige genannt werden:It goes without saying that appropriate drive means must be provided for rotating the sleeve and / or the body. Various prior art options are also available for this, some of which are mentioned below by way of example:
- Hülse und Körper können über mindestens einen Zahnkranz drehbar miteinander verbunden werden.- The sleeve and body can be rotatably connected to one another via at least one toothed ring.
- Hülse und Körper können über ein Gestänge zueinander verschoben werden.- The sleeve and body can be moved towards each other using a linkage.
- Hülse oder Körper können über pneumatische oder hydraulische Einrichtungen gegeneinander verschoben werden.- The sleeve or body can be moved against each other using pneumatic or hydraulic devices.
Nach einer weiteren Ausführungsform entspricht die Zahl der Öffnungen der Hülse der Zahl der Austrittsoffnungen des Körpers. Es ist aber auch möglich, beispielsweise 2 Austrittsoffnungen des Körpers einer (gemeinsamen) Öffnung der Hülse zuzuordnen. Selbst in diesem Fall kann durch entsprechende geometrische Gestaltung der Öffnungen in der Hülse sichergestellt werden, dass die Austrittsoffnungen des Körpers nicht gleichzeitig freigegeben oder abgesperrt werden. Insoweit kann die Zahl der Öffnungen und deren geometrische Ausbildung völlig unterschiedlich zur Zahl der Austrittsoffnungen des Körpers und deren Gestaltung sein. Erfindungsgemäß kommt es ausschließlich auf den funktionalen Gesichtspunkt an, die Austrittsoffnungen nach einem vorwählbaren Schema freizugeben oder abzusperren.According to a further embodiment, the number of openings in the sleeve corresponds to the number of outlet openings in the body. However, it is also possible to assign, for example, 2 outlet openings of the body to a (common) opening of the sleeve. Even in this case, it can appropriate geometric design of the openings in the sleeve can be ensured that the outlet openings of the body are not released or blocked at the same time. In this respect, the number of openings and their geometric design can be completely different from the number of outlet openings in the body and their design. According to the invention, the only thing that matters is the functional aspect of opening or closing off the outlet openings according to a preselectable scheme.
Die Anordnung und Dimensionierung des Kanals und/oder der Austrittsoffnungen kann so gewählt werden, dass bei einem vorgegebenen Förderdruck (für die Substanz oder die Substanzen) ein gleichmäßiger Substanzaustritt durch alle Austrittsoffnungen erfolgt. Aufgrund eines Druckverlustes entlang der Förderleitung beziehungsweise des Kanals kann es dazu kommen, dass durch einzelne Austrittsoffnungen mehr oder weniger Material als durch andere Austrittsoffnungen austritt. Dies kann durch die erwähnte konstruktive Gestaltung des Kanals beziehungsweise der Austrittsoffnungen vermieden werden. Konkret kann die Größe der einzelnen Austrittsoffnungen (in Förderrichtung des Zuführorgans betrachtet) größer werden und/oder der Innenquerschnitt des Kanals kleiner werden.The arrangement and dimensioning of the channel and / or the outlet openings can be selected so that at a given delivery pressure (for the substance or substances) there is a uniform substance outlet through all outlet openings. Due to a pressure loss along the delivery line or the channel, it can happen that more or less material escapes through individual outlet openings than through other outlet openings. This can be avoided by the above-mentioned constructive design of the channel or the exit openings. Specifically, the size of the individual outlet openings (viewed in the conveying direction of the feed member) can become larger and / or the internal cross section of the channel can be smaller.
Das beschriebene Zuführorgan ist nicht nur beim Einführen in die Matrize vorteilhaft. Die beschriebenen Vorteile können ebenso am Ende der Matrize genutzt werden, wenn die Bewegungsrichtung der Vorrichtung oder der Matrize geändert wird. Aber auch während des Weges des Zuführorgans durch die Matrize kann das Zuführorgan vorteilhaft genutzt werden, indem beispielsweise die Fördermenge reduziert oder gesteigert wird, indem einzelne oder alle Austrittsoffnungen in ihrem Austrittsquerschnitt verändert werden. Zur Erfindung gehört auch eine Vorrichtung zur Zuführung von fluiden und festen Substanzen in eine rotierende Matrize zur Herstellung von geschleuderten, glasfaserverstärkten Rohren, die mit einem Zuführorgan der genannten Art bestückt ist. Dabei ist das Zuführorgan an seinem ersten Ende an mindestens eine Zuführleitung für die Substanz(en) angeschlossen. Die Vorrichtung umfasst ferner eine Steuerung, die Mittel aktiviert, mit denen die Austrittsöffnung(en) ganz oder teilweise abgesperrt beziehungsweise freigegeben werden.The feed element described is advantageous not only when it is inserted into the die. The advantages described can also be used at the end of the die if the direction of movement of the device or die is changed. But also during the path of the feed member through the die, the feed member can be used advantageously, for example, by reducing or increasing the delivery rate, by changing the outlet cross section of some or all of the outlet openings. The invention also includes a device for supplying fluid and solid substances into a rotating die for the production of flung, glass fiber reinforced tubes, which is equipped with a supply member of the type mentioned. The feed element is connected at its first end to at least one feed line for the substance (s). The device further comprises a control which activates means with which the outlet opening (s) are completely or partially blocked or released.
Diese Vorrichtung, im Stand der Technik auch „Feeder" umfasst beispielsweise auch eine Füllstation, in der die verschiedenen Substanzen, insbesondere Glasfasern, Sand (Quarzsand), Harz, Katalysator (für das Harz), Zusatzstoffe oder weitere Füllstoffe bereitgestellt werden. Der Transport dieser Ausgangsmaterialien erfolgt durch Rohrleitungen unterschiedlicher Durchmesser entlang eines Beschickungsarms zum so genannten Kopf der Vorrichtung am anderen (freien) Ende, an dem sich unter anderem das erfindungsgemäße Zuführorgan befindet. An dieser Stelle können demnach auch mehrere erfindungsgemäße Zuführorgane oder andere Vorrichtungsteile angeordnet sein, über die andere Materialien ausgebracht werden. Beispielsweise kann der Kopf der Vorrichtung mit einer Schneideinrichtung für Glasfasergarne bestückt sein, wie sie in der WO 00/56525 beschrieben wird.This device, also known as “feeder” in the prior art, also includes, for example, a filling station in which the various substances, in particular glass fibers, sand (quartz sand), resin, catalyst (for the resin), additives or other fillers are provided. The transport of these Starting materials are supplied through pipelines of different diameters along a feed arm to the so-called head of the device at the other (free) end, at which the feed element according to the invention is located, among other things For example, the head of the device can be equipped with a cutting device for glass fiber yarns, as described in WO 00/56525.
Wie bereits im Zusammenhang mit dem Zuführorgan erläutert wird die Steuerung anlagenspezifisch programmiert. Die Steuerung kann beispielsweise so sein, dass die Mittel (zum Öffnen beziehungsweise Absperren der Austrittsoffnungen) derart aktiviert werden, dass die Austrittsoffnungen, beginnend am zweiten Ende des Zuführorgans, sukzessive freigegeben werden, sobald die entsprechenden Austrittsoffnungen eine Eintrittsöffnung der zugehörigen Matrize passiert haben. Umgekehrt kann die Steuerung so sein, dass die Austrittsoffnungen, beginnend am ersten Ende des Zuführorgans, sukzessive abgesperrt werden, sobald die entsprechenden Austrittsoffnungen die Eintrittsöffnung der Matrize wieder verlassen.As already explained in connection with the feed element, the control system is programmed specifically for the plant. The control can, for example, be such that the means (for opening or closing the outlet openings) are activated in such a way that the outlet openings successively, starting at the second end of the feed element be released as soon as the corresponding exit openings have passed an entry opening of the associated die. Conversely, the control can be such that the exit openings, starting at the first end of the feed element, are successively blocked off as soon as the corresponding exit openings leave the entry opening of the die again.
Weitere Merkmale der Erfindung sind Gegenstand der Merkmale der Unteransprüche sowie der sonstigen Anmeldungsunterlagen.Further features of the invention are the subject of the features of the subclaims and the other application documents.
Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels näher erläutert. Dabei zeigen - jeweils in schematisierter Darstellung -The invention is explained in more detail below using an exemplary embodiment. Here show - each in a schematic representation -
Figur 1 : Eine perspektivische Ansicht des ZuführorgansFigure 1: A perspective view of the feed member
Figur 2: Einen Körper des Zuführorgans gemäß Figur 1Figure 2: A body of the feed member according to Figure 1
Figur 3 : Eine Hülse des Zuführorgans gemäß Figur 1Figure 3: A sleeve of the feed member according to Figure 1
Figur 4: Eine Ansicht auf das Zuführorgan von vorneFigure 4: A view of the feed member from the front
Figur 1 zeigt ein Zuführorgan, welches insgesamt das Bezugszeichen 10 trägt und ein erstes, offenes Ende 10. 1 aufweist. Mit diesem Ende 10.1 ist das Zuführorgan 10 an eine nicht dargestellte Zuführleitung eines Beschickungsarms anschließbar.FIG. 1 shows a feed element, which bears the overall reference number 10 and has a first, open end 10. 1. With this end 10.1, the feed member 10 can be connected to a feed line (not shown) of a loading arm.
Dieses offene Ende 10J ist auch das offene Ende eines Kanals 12, der konzentrisch zur Mittenlängsachse des in Figur 2 dargestellten Körpers 14 des Zuführorgans 10 verläuft und am gegenüberliegenden zweiten Ende 10.2 endet. J lThis open end 10J is also the open end of a channel 12, which runs concentrically to the central longitudinal axis of the body 14 of the feed element 10 shown in FIG. 2 and ends at the opposite second end 10.2. J l
Vom Kanal 12 verlaufen mehrere Austrittsoffnungen 1 6 radial durch eine Wand des Körpers 14 bis zu dessen zylindrischer Oberfläche 14o. Gemäß Figur 2 sind bei dem dargstellten Ausführungsbeispiel insgesamt 14 Austrittsoffnungen 1 6 angeordnet, und zwar jeweils 7 in zwei axial verlaufenden, nebeneinander angeordneten Reihen, wobei die Austrittsoffnungen einer Reihe etwas versetzt zu den Austrittsoffnungen der anderen Reihe liegen.A plurality of outlet openings 16 run radially from the channel 12 through a wall of the body 14 up to its cylindrical surface 14o. According to FIG. 2, a total of 14 outlet openings 16 are arranged in the illustrated embodiment, 7 each in two axially extending rows arranged next to one another, the outlet openings of one row being somewhat offset from the outlet openings of the other row.
Die Austrittsoffnungen 16 weisen jeweils einen Kreisquerschnitt mit einem Durchmesser von circa 3mm auf.The outlet openings 16 each have a circular cross section with a diameter of approximately 3 mm.
Auf der Oberfläche 14o des Körpers 14 liegt eine Hülse 1 8, die mit insgesamt 14 Öffnungen 20 ausgebildet ist. Jede Öffnung 20 besitzt eine Schlitzform, wobei die Längsachse in Umfangsrichtung der Hülse 18 verläuft. Die Anordnung der Öffnungen 20 ist so, dass die Öffnungen 20 in eine Position gebracht werden können, bei denen sie über den Austrittsoffnungen 16 liegen.On the surface 14o of the body 14 is a sleeve 18, which is formed with a total of 14 openings 20. Each opening 20 has a slot shape, the longitudinal axis running in the circumferential direction of the sleeve 18. The arrangement of the openings 20 is such that the openings 20 can be brought into a position in which they lie above the outlet openings 16.
Die Hülse 1 8 ist drehbar auf dem Körper 14 angeordnet. Dazu sind an der Hülse 1 8 umfangsseitig zwei radial abstehende Flansche 22 vorgesehen, an denen ein Teleskoparm 24 verschwenkbar mit einem Ende angelenkt ist. Am anderen Ende des Teleskoparms 24 ist ein Arm 26 drehbar angelenkt, der außenseitig am Körper 14 befestigt ist. Durch Veränderung der Länge des Teleskoparms 24 lässt sich die Hülse 1 8 auf dem Körper 14 drehen. Damit lassen sich auch die Öffnungen 20 in ihrer Zuordnung zu den Austrittsoffnungen 1 6 verschieben.The sleeve 1 8 is rotatably arranged on the body 14. For this purpose, two radially projecting flanges 22 are provided on the sleeve 18 on the circumference, on which a telescopic arm 24 is pivotally articulated at one end. At the other end of the telescopic arm 24, an arm 26 is pivotally articulated, which is attached to the outside of the body 14. By changing the length of the telescopic arm 24, the sleeve 18 can be rotated on the body 14. The openings 20 can thus also be shifted in their assignment to the outlet openings 1 6.
Wie Figur 1 zu entnehmen ist sind die schlitzartigen Öffnungen 20 entlang einer in Axialrichtung gekrümmten Linie angeordnet. Wie Figur 1 zeigt liegen dadurch einzelne Austrittsoffnungen 1 6 an unterschiedlichen Stellen der korrespondierenden Schlitze 20. Würde man die Hülse 18 in Pfeilrichtung P l verschieben, so würden die der Öffnung 10.1 benachbarten Austrittsoffnungen 16 unmittelbar anschließend von der Hülse 1 8 überdeckt und damit geschlossen. Die in Richtung auf das andere Ende 10.2 dahinter liegenden Austrittsoffnungen 16 würden dabei teilweise von der Hülse überdeckt, während die am gegenüberliegenden Ende 10.2 liegenden Austrittsoffnungen 16 noch vollständig im Öffnungsbereich der Schlitze 20 lägen.As can be seen in FIG. 1, the slot-like openings 20 are arranged along a line curved in the axial direction. As shown in FIG. 1, individual outlet openings 1 6 are thereby located at different points in the Corresponding slots 20. If the sleeve 18 were displaced in the direction of the arrow P 1, the outlet openings 16 adjacent to the opening 10.1 would be covered by the sleeve 18 immediately thereafter and thus closed. The outlet openings 16 lying behind in the direction of the other end 10.2 would be partially covered by the sleeve, while the outlet openings 16 lying at the opposite end 10.2 would still lie completely in the opening region of the slots 20.
Es ist selbstverständlich, dass bei umgekehrter Drehrichtung der Effekt umgekehrt wäre.It goes without saying that the reverse effect would be reversed.
Auf diese Weise lassen sich beim Einführen des Zuführorgans in eine Matrize beispielsweise Austrittsoffnungen 16 an einem Ende ( 10.1 oder 10,2) öffnen beziehungsweise schließen, während am anderen Ende die Austrittsoffnungen noch geschlossen wären beziehungsweise geöffnet werden könnten.In this way, outlet openings 16 can be opened or closed at one end (10.1 or 10.2), for example, when the feed member is inserted into a die, while the outlet openings would still be closed or could be opened at the other end.
Der Teleskoparm 24 ist an eine entsprechende motorische Antriebseinheit und eine Steuerung angeschlossen, um die gewünschte Winkelverschiebung der Hülse 1 8 auszuführen. The telescopic arm 24 is connected to a corresponding motor drive unit and a controller to carry out the desired angular displacement of the sleeve 1 8.

Claims

,Zuführorgan und zugehörige Vorrichtung'P a t e n t a n s p r ü c h e 'Feeder and associated device' patent claims
1. Zuführorgan für fluide und feste Substanzen in eine rotierende Matrize zur Herstellung von geschleuderten, glasfaserverstärkten Rohren, mit folgenden Merkmalen: a) einem stabförmigen Körper (14) , b) der Körper (14) ist an einem ersten Ende (10.1 ) an mindestens eine Zuführleitung für die Substanzen anschließbar, c) in Verlängerung der Zuführleitung verläuft im Körper (14) mindestens ein axial verlaufenden Kanal (12), der an einem zweiten Ende (10.2) des Körpers (14) endet, d) vom Kanal (12) verlaufen mehrere düsenartige Austrittsoffnungen (16) radial durch den Körper (14) bis zu dessen Oberfläche (14o), e) die Austrittsoffnungen (16) sind in vorwählbarer Zahl und Anordnung ganz oder teilweise schließbar. 1. Feeder for fluid and solid substances in a rotating die for the production of flung, glass fiber reinforced tubes, with the following features: a) a rod-shaped body (14), b) the body (14) is at least at a first end (10.1) a feed line for the substances can be connected, c) in the extension of the feed line runs in the body (14) at least one axially extending channel (12) which ends at a second end (10.2) of the body (14), d) from the channel (12) run several nozzle-like outlet openings (16) radially through the body (14) up to its surface (14o), e) the outlet openings (16) can be completely or partially closed in a selectable number and arrangement.
2. Zuführorgan nach Anspruch 1 , bei dem die Austrittsoffnungen ( 16) einen Kreisquerschnitt aufweisen.2. Feeder according to claim 1, wherein the outlet openings (16) have a circular cross section.
3. Zuführorgan nach Anspruch 1 , bei dem die Austrittsoffnungen (16) entlang mindestens einer axial oder gekrümmt verlaufenden Linie hintereinander angeordnet sind.3. Feed element according to claim 1, in which the outlet openings (16) are arranged one behind the other along at least one axially or curved line.
4. Zuführorgan nach Anspruch 1 , dessen Körper (14) eine zylinderförmige Oberfläche ( 14o) aufweist.4. Feeder according to claim 1, the body (14) of which has a cylindrical surface (14o).
5. Zuführorgan nach Anspruch 1 , dessen Körper (14) eine kegelstumpfförmige Oberfläche aufweist.5. Feeder according to claim 1, the body (14) of which has a frustoconical surface.
6. Zuführorgan nach Anspruch 1 , auf dessen Körper (14) eine mit Öffnungen (20) versehene Hülse (18) angeordnet ist, wobei Körper (14) und Hülse (18) relativ zueinander verschiebbar sind.6. Feed element according to claim 1, on the body (14) of which an opening (20) is provided with a sleeve (18), the body (14) and sleeve (18) being displaceable relative to one another.
7. Zuführorgan nach Anspruch 6, bei dem die Zahl der Öffnungen (20) der Hülse (18) der Zahl der Austrittsoffnungen (16) des Körpers (14) entspricht.7. Feeding device according to claim 6, wherein the number of openings (20) of the sleeve (18) corresponds to the number of outlet openings (16) of the body (14).
8. Zuführorgan nach Anspruch 6, bei dem die Öffnungen (20) eine in Umfangsrichtung verlaufende Schlitzform aufweisen.8. Feeder according to claim 6, wherein the openings (20) have a circumferential slot shape.
9. Zuführorgan nach Anspruch 6, bei dem der Körper (14) drehbar in der Hülse (18) oder die Hülse (18) drehbar auf dem Körper (14) angeordnet ist.9. Feeder according to claim 6, wherein the body (14) is rotatably arranged in the sleeve (18) or the sleeve (18) rotatably on the body (14).
10. Zuführorgan nach Anspruch 6, bei dem die Öffnungen (20) entlang mindestens einer axial oder gekrümmt verlaufenden Linie angeordnet sind. 10. Feeder according to claim 6, wherein the openings (20) are arranged along at least one axially or curved line.
11. Zuführorgan nach Anspruch 1 , bei dem die Anordnung und Dimensionierung des Kanals (12) und der Austrittsoffnungen (16) so gewählt sind, dass bei vorgegebenem Förderdruck ein gleichmäßiger Substanzaustritt durch alle Austrittsoffnungen erfolgt.11. Feeding device according to claim 1, in which the arrangement and dimensioning of the channel (12) and the outlet openings (16) are selected such that, at a given delivery pressure, a uniform substance outlet takes place through all outlet openings.
12Norrichtung zur Zuführung von fluiden und festen Substanzen in eine rotierende Matrize zur Herstellung von geschleuderten, glasfaserverstärkten Rohren, mit folgenden Merkmalen: a) einem Zuführorgan (10) nach einem der Ansprüche 1 -1 1 b) das Zuführorgan (10) ist an seinem ersten Ende (10.1) an mindestens eine Zuführleitung für die Substanz(en) angeschlossen, c) einer Steuerung, die Mittel (24, 18) aktiviert, mit denen die Austrittsöffnung(en) (16) ganz oder teilweise abgesperrt beziehungsweise freigegeben werden.Device for supplying fluid and solid substances into a rotating die for the production of flung, glass fiber reinforced tubes, with the following features: a) a supply member (10) according to one of claims 1 -1 1 b) the supply member (10) is at its first End (10.1) connected to at least one feed line for the substance (s), c) a controller which activates means (24, 18) with which the outlet opening (s) (16) are completely or partially blocked or released.
13. Vorrichtung nach Anspruch 12, mit einer Steuerung, die die Mittel (24, 18) derart aktiviert, dass die Austrittsoffnungen (16), beginnend am zweiten Ende (10.2) des Zuführorgans (10), sukzessive freigegeben werden, sobald die entsprechende(n) Austrittsöffnung(en) (16) eine Eintrittsöffnung der zugehörigen Matrize passiert haben beziehungsweise die Austrittsöffnung(en) (16), beginnend am ersten Ende (10.1 ) des Zuführorgans (10), sukzessive abgesperrt werden, sobald die entsprechenden Austrittsoffnungen (16) die Eintrittsöffnung der Matrize wieder verlassen.13. The apparatus of claim 12, with a controller that activates the means (24, 18) such that the outlet openings (16), starting at the second end (10.2) of the feed member (10), are successively released as soon as the corresponding ( n) outlet opening (s) (16) have passed an inlet opening of the associated die or the outlet opening (s) (16), beginning at the first end (10.1) of the feed element (10), are blocked off successively as soon as the corresponding outlet openings (16) leave the entry opening of the die again.
HNorrichtung nach Anspruch 12, die in Axialrichtung des Zuführorgans (10) in die Matrize hinein und aus dieser heraus bewegbar ist. Device according to Claim 12, which can be moved into and out of the die in the axial direction of the feed element (10).
PCT/EP2005/001098 2004-04-03 2005-02-04 Delivering element and associated device WO2005105403A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004016609.9 2004-04-03
DE200410016609 DE102004016609B3 (en) 2004-04-03 2004-04-03 Supply unit for fluids and solids in a rotating mould comprises a rod shaped member connected to a supply line at one end and a sleeve with holes in it which slides relative to the member

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