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EP0220365B1 - Apparatus for the application of a wetting agent to tyre beads - Google Patents

Apparatus for the application of a wetting agent to tyre beads Download PDF

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Publication number
EP0220365B1
EP0220365B1 EP86106386A EP86106386A EP0220365B1 EP 0220365 B1 EP0220365 B1 EP 0220365B1 EP 86106386 A EP86106386 A EP 86106386A EP 86106386 A EP86106386 A EP 86106386A EP 0220365 B1 EP0220365 B1 EP 0220365B1
Authority
EP
European Patent Office
Prior art keywords
roller
humidifying
tire
collecting container
wetting
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
EP86106386A
Other languages
German (de)
French (fr)
Other versions
EP0220365A2 (en
EP0220365A3 (en
Inventor
Horst Steffel
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.)
SPEZIALMASCHINENBAU STEFFEL GmbH and Co KG
Original Assignee
SPEZIALMASCHINENBAU STEFFEL GmbH and Co KG
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 SPEZIALMASCHINENBAU STEFFEL GmbH and Co KG filed Critical SPEZIALMASCHINENBAU STEFFEL GmbH and Co KG
Priority to AT86106386T priority Critical patent/ATE64326T1/en
Publication of EP0220365A2 publication Critical patent/EP0220365A2/en
Publication of EP0220365A3 publication Critical patent/EP0220365A3/en
Application granted granted Critical
Publication of EP0220365B1 publication Critical patent/EP0220365B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
    • B05C1/022—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles to the outer surface of hollow articles

Definitions

  • the vehicle tires are clamped on measuring or test rims. So that the tires can be easily detached from the test rims after the test process, the tires are wetted with a flowable wetting medium before being mounted on the bead.
  • the wetting medium is either in the form of a liquid or in paste form. It is known to apply the wetting medium by hand using a brush. This method is naturally disadvantageous for automatic production.
  • the invention has for its object to provide a device for automatic wetting of the bead base of vehicle tires, which enables uniform wetting with a minimum of time, regardless of the viscosity of the wetting medium.
  • a wetting station is assigned to a feed conveyor, which preferably conveys the tire horizontally.
  • a holding device holds and centers the tire horizontally in the wetting station so that a wetting roller can be immersed in the tire.
  • the wetting roller is rotatably mounted in a holding component about a vertical axis. The holding component is moved from a rest position into the working position and back by a corresponding adjusting device. In the working position, the wetting roller rests against the tire bead. In the rest position, the wetting roller is located outside the tire, preferably on its underside.
  • An application device is assigned to the wetting roller, with which the wetting medium is applied to the wetting roller.
  • the application device which is stationary relative to the wetting roller, is connected to a metering pump with which the wetting medium is metered to the application device.
  • a collecting container into which wetting medium drips from the wetting roller.
  • Tire and wetting roller must rotate relative to each other. It is conceivable for the wetting roller to run once around the inner circumference of the tire, the wetting roller rolling on the beads. It is more advantageous if the wetting roller is held in one place and the tire is set in rotation. The wetting role can be carried along by friction, therefore does not need its own drive. However, since the wetting medium is highly lubricious, it is preferable if the wetting roller is also driven in rotation.
  • a normal pump and a metering valve can also be provided.
  • the stop rollers are preferably mounted on a pivotable bearing component so that they can be pivoted away after the wetting process has ended and the tire can continue its way through the production system.
  • the holding component carrying the wetting roller is preferably attached to a swivel arm which is engaged by a spring.
  • the holding component is in turn movable vertically on the swivel arm and is preferably by means of two parallel adjustment cylinders adjusted in the vertical direction, the adjustment cylinders having continuous piston rods, the two ends of which are connected to the carriage carrying the wetting roller.
  • the spring mentioned gives the swivel arm and thus the wetting roller a predetermined force with which the wetting roller rests on the tire beads.
  • An adjusting cylinder acting on the swivel arm can pivot the swivel arm against the spring in order to disengage the wetting roller from the tire beads.
  • a groove is formed in an axially parallel vertical surface which runs directly on the circumference of the wetting roller or at a short distance from it.
  • the groove preferably begins at the top of the wetting roller and its length depends, among other things, on the viscosity of the wetting medium. The less viscous the wetting medium, the shorter the groove, since the wetting medium, after it is on the wetting roller, automatically continues to run down on the roller.
  • the groove preferably extends over the entire height of the wetting roller.
  • the groove is connected at the bottom to a channel in the applicator, which in turn connects to the Dosing pump is connected.
  • a collecting container is arranged below the wetting roller, which is also attached to the holding component. Unnecessary wetting medium running off the wetting roller collects in the collecting container. This is preferably arranged around the bearing or drive shaft of the wetting roller in such a way that the wetting medium does not get into the bearing or the drive. The device according to the invention is therefore not contaminated with wetting medium.
  • the collecting container preferably has an overflow. Therefore, liquid medium can get into another collecting container and be removed. Dust and particles that stick to the bead due to tire manufacture and abrasion collect in a sump in the collecting container. The collecting container therefore only needs to be emptied at very large intervals.
  • a cylindrical body can be used as the wetting roller.
  • the course of the so-called core flag of the tire bead is not exactly parallel to the tire axis. It is therefore expedient to carry out the wetting role in the form of a double cone, in which the tapering faces each other.
  • the cone angle is expediently chosen so that a full contact with the core flag is made possible.
  • the wetting roller is preferably made of aluminum in order to obtain low wear.
  • Each cone is preferably assigned an application device which can be connected to its own metering pump.
  • the dosing pump always delivers fresh wetting medium to the application device, so that it is ensured that only medium with the desired viscosity is applied to the beads of the tires. Numerous advantages are achieved with the device according to the invention. With the aid of the wetting roller according to the invention, only the bead feet are wetted with the wetting medium. A Soiling of production machines or tire rims is therefore excluded. With the aid of the device according to the invention, an exact metering of the wetting medium can take place.
  • the device according to the invention is suitable for all occurring viscosities of the wetting medium, ie for both liquid and pasty medium. The viscosity remains the same during operation, and with it the degree of wetting.
  • roller conveyors 11, 12 are arranged in parallel, which have rollers 13 and 14 in a known manner.
  • the rollers 13, 14 are driven by separate drives, not shown.
  • the drive for the roller conveyor 12 is reversible, so that the roller conveyor 12 can convey in both directions, as indicated by the double arrow 15.
  • the roller conveyor 11 only conveys in one direction, as indicated by the arrow 16.
  • the roller tracks 11, 12 run horizontally.
  • a bearing plate 18 is arranged above the roller tracks 11, 12 and parallel to the plane of the rollers 13, 14.
  • Bearing rods 19 are connected to the plate 18 and project vertically downwards. Stop rollers 20 are rotatably mounted on the bearing rods 19.
  • stop rollers 20 are provided, each of which is assigned in pairs to a roller conveyor 11 or 12. Their axes lie on a circular arc, the center of which lies on the center line between the roller tracks 11, 12. With the help of the roller conveyors 11, 12 tires are conveyed in the direction of the stop rollers 20.
  • the stop rollers 20 automatically center the tires, as shown in FIG. 1.
  • a tire 21 is shown in dash-dot lines in contact with the rollers 20.
  • a shaft 22 extends below the plate 18 and is rotatably supported at 23 and 24 in the frame 10 at both ends. As can be seen from FIG. 3, one end of the shaft is connected to a lever arm 25, the other lower end of which is connected at 26 to the piston rod of an adjusting cylinder 27.
  • the adjusting cylinder 27 is connected to the frame 10 at 28.
  • the shaft 22 is fixedly connected to the plate 18, for example by welding. If the adjusting cylinder 27 is actuated the plate 18 is pivoted about the axis of the shaft 22. As a result, the stop rollers 20 lift in the direction of the arrow 29 (FIG. 3). When the stop rollers 20 are pivoted in the manner described, a tire 21 can be conveyed further by means of the roller conveyor 11, 12.
  • roller conveyor 12 can be operated in both conveying directions. If the tire 21 lies against the stop rollers 20 and the roller conveyor 12 is driven in the rearward direction and the roller conveyor 11 is driven in the forward direction, the tire 21, resting against the stop rollers 20, is set in rotation. The rotation is counterclockwise.
  • the wetting device 17 is explained in detail in the following FIGS. 4 to 7.
  • a holding arm 30 which is pivotally mounted in the frame 10 at 32 and 33 by means of a vertical bearing rod 31.
  • Two adjusting cylinders are attached to the holding arm 30, one of which can be seen at 34 in FIG. 5.
  • the adjusting cylinders are arranged parallel to one another and have a continuous piston rod 35.
  • the piston rod 35 is connected at the ends at 36 and 37 to a slide 38.
  • the carriage 38 can therefore be raised and lowered vertically in accordance with the double arrow 39.
  • the two adjustment cylinders 34 are therefore both adjusting means and guide for the slide 38.
  • a spring 40 engages the support arm 30, which biases the arm 30 in a first direction of rotation.
  • the arm 30 also engages the piston rod of an adjusting cylinder 41, with which the support arm 30 can be pivoted against the spring 40 in the other direction of rotation.
  • a collecting container 42 is attached to the slide 38, which is designed as a plate.
  • the collecting container 42 has a central passage 43, through which a drive shaft 44 for a wetting roller 45 arranged above the collecting container 42 is passed.
  • the bearing 43 also contains the bearing for the drive shaft 44, which is not shown, however.
  • a pulley 46 is attached to the shaft 44 at the lower end.
  • a drive motor 48 is suspended from the collecting container 42 on a support arm 47 with a pulley 49. With the help of the motor 48, the shaft 44 can therefore be set in rotation and thus also the wetting roller 45.
  • the upper opening edge 50 of the collecting container 42 surrounds it at a radial distance lower area of the wetting roller 45.
  • a metering pump 51 is also attached to the carriage 38 and is driven by a pump motor 52.
  • the wetting roller 45 is assigned an application device 53. As can be seen from FIG. 6, it has an upright plate 54 which is arranged tangentially to the circumference of the wetting roller 45 (see also FIG. 1). It can lie directly against the wetting roller 45; it can also have a small gap with it, as shown at S in FIG. 7.
  • the surface 55 of the plate 54 facing the wetting roller 45 has a groove 56, the axis of which runs parallel to the axis of the wetting roller 45.
  • a vertical bore 57 is formed in the plate 54, which is connected to the groove 56 via a transverse bore 58.
  • a further transverse bore 59 is provided, which is connected to a connection 60 for a line.
  • the plate 54 stands on a plate 61.
  • a block 62 on the plate 61 is connected to this and the upright plate 54.
  • the application device 53 shown in FIG. 6 is also firmly connected to the carriage 38 (see FIGS. 4 and 5).
  • connection 60 is connected via a line 64 to the output of the metering pump 51.
  • the metering pump 51 conveys fresh wetting medium from a container 65 fixed to the frame via lines 66 and 64 to the application device 53 it if the application groove 56 has a relatively short length.
  • the application groove 56 approximately coincides with the upper end of the wetting roller 45. The more viscous the wetting medium, the longer the groove 56 must be selected.
  • the groove can extend approximately over the entire height of the wetting roller 45, as indicated by the dashed line 67 in FIG. 6. The paste is fed to the dosing pump under pressure.
  • the wetting roller 45 can be pivoted and moved vertically in a horizontal plane with the aid of the support arm 30 and the slide 38. Before a tire 21 reaches the stop rollers 20, the wetting roller 45 is in a lower rest position below the roller tracks 11, 12.
  • the adjusting cylinder 41 holds the support arm in a position in which the wetting roller is within a range defined by the inner circumference of the smallest and largest tire 21 is defined. The tires can be fed to the system unsorted will. If the tire 21 has now reached the stop rollers 20, the carriage 38 is first moved upward, so that the wetting roller 45 is immersed in the tire 21. The adjusting cylinder 41 is then relieved.
  • the spring 40 now pivots the arm 30 until the wetting roller 45 rests with a predetermined pressure against the two beads (better bead feet) of the tire 21 with a predetermined contact pressure.
  • the tire 21 is rotated in the manner described above.
  • the wetting roller 45 is driven by the motor 48 at a predetermined speed.
  • the metering pump 51 conveys lubricious wetting agent to the application device 53, so that the bead feet are wetted over the entire circumference.
  • the adjusting cylinder 41 is pressurized again and the wetting roller 45 swings away from the bead feet.
  • the carriage 38 can now be adjusted downward into the rest position by the adjustment cylinders 34.
  • the wetting roller 45 is shown cylindrically. It can also be designed in the form of a double cone, wherein one cone can be brought into engagement with one and the other into engagement with the second bead of a tire.
  • the cone angle is adapted to the shape of the core flag.
  • One is preferred Cone assigned its own application device, which is connected to its own metering pump.
  • the application device can be designed in accordance with the embodiment according to FIG. 6.
  • the described operation of the wetting device can be carried out completely automatically by using a suitable control device; the control device detects the positions of the individual adjustable parts and gives the adjustment devices corresponding control signals according to a predetermined program.

Landscapes

  • Coating Apparatus (AREA)
  • Testing Of Balance (AREA)
  • Tyre Moulding (AREA)
  • Tires In General (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Spray Control Apparatus (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

An apparatus for automatically humidifying the beads of tires made of rubber with a humidifying agent has a conveyor for retaining and centering a tire received horizontally. An upright humidifying roller is supplied by an applicator with humidifying agent while the roller is rotated. The roller is movable between a standby position below the tire and an operating position within the tire wherein it engages the beads of the tire to apply the humidifying agent thereto. A collecting container is mounted below the humidifying roller to collect surplus humidifying agent flowing from the humidifying roller.

Description

Bei der industriellen Fertigung von Fahrzeugreifen aus Gummi werden diese mehrfachen Prüfungen unterzogen. Zu diesem Zweck werden die Fahrzeugreifen auf Meß- oder Prüffelgen aufgespannt. Damit sich die Reifen nach dem Prüfvorgang ohne weiteres von den Prüffelgen lösen lassen, werden die Reifen vor dem Aufspannen am Wulst mit einem fließfähigen Benetzungsmedium benetzt. Das Benetzungsmedium liegt entweder als Flüssigkeit oder in Pastenform vor. Es ist bekannt, das Benetzungsmedium mit Hilfe eines Pinsels von Hand aufzutragen. Dieses Verfahren ist für eine automatische Fertigung naturgemäß nachteilig.These are subjected to multiple tests in the industrial manufacture of rubber vehicle tires. For this purpose, the vehicle tires are clamped on measuring or test rims. So that the tires can be easily detached from the test rims after the test process, the tires are wetted with a flowable wetting medium before being mounted on the bead. The wetting medium is either in the form of a liquid or in paste form. It is known to apply the wetting medium by hand using a brush. This method is naturally disadvantageous for automatic production.

Es ist ferner bekannt, das Benetzungsmedium mit Hilfe einer Sprühvorrichtung direkt auf den Felgen oder den Reifen aufzutragen. Auch dieses Verfahren ist mit Nachteilen behaftet. Mit Hilfe der Sprühvorrichtung ist es nicht möglich, nur den Reifensitz an der Felge allein zu benetzen, vielmehr wird auch das Umfeld der Maschine benetzt. Es kommt daher zu Verschmutzungen der Fertigungsanlage im Bereich der Sprühvorrichtung und auch in den nachfolgenden Anlagenteilen. Herabtropfendes Benetzungsmittel verunreinigt dabei den Reifen. Beim späteren Aufziehen auf den Felgen eines Fahrzeuges läßt es sich nicht vermeiden, daß dieser ebenfalls mit dem Benetzungsmedium verschmutzt wird. Bestehen diese zum Beispiel aus Aluminium, ergeben sich nicht mehr entfernbare Flecken. Eine derartige Felge kann jedoch nicht mehr in der Automobilfertigung verwendet werden. Auch beim direkten Einsprühen des Wulstfußes werden die Reifenflanken und das Innere des Reifens mitbenetzt. Es ergeben sich die gleichen Nachteile wie oben beschrieben.It is also known to apply the wetting medium directly to the rims or the tires with the aid of a spray device. This method also has disadvantages. With the help of the spray device, it is not possible to wet the tire seat on the rim alone, rather the area around the machine is also wetted. So there is contamination of the production plant in the area of the spraying device and also in the subsequent parts of the plant. Dripping wetting agent contaminates the tire. When later mounting on the rims of a vehicle, it cannot be avoided that it is also contaminated with the wetting medium. If these are made of aluminum, for example, stains that cannot be removed will result. However, such a rim can no longer be used in automobile production. The tire flanks and the inside of the tire are also wetted when the bead foot is sprayed directly. The same disadvantages as described above result.

Aus der US-A-3 658 152 ist eine gaffungsbildende Vorrichtung bekanntgeworden, bei der eine horizontal gelagerte Benetzungsrolle in einem Bad aus Benetzungsmedium läuft. Eine Pumpe fördert aus einem Reservoir das Benetzungsmedium in das Bad. Überschüssiges Medium wird über einen Überlauf in das Reservoir zurückgeleitet. Verunreinigungen, die vom Reifen über die Rolle in das Bad eingetragen werden, bilden einen Sumpf, so daß das Bad von Zeit zu Zeit gereinigt und das Benetzungsmedium ausgetauscht werden muß.From US-A-3 658 152 a gap-forming device has become known in which a horizontally mounted wetting roller runs in a bath of wetting medium. A pump conveys the wetting medium from a reservoir into the bath. Excess medium is returned to the reservoir via an overflow. Contaminants that enter the bath from the tire via the roller a sump so that the bath must be cleaned from time to time and the wetting medium must be replaced.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum automatischen Benetzen des Wulstfußes von Fahrzeugreifen zu schaffen, die mit einem minimalen Zeitaufwand eine gleichmäßige Benetzung ermöglicht, unabhängig von der Viskosität des Benetzungsmediums.The invention has for its object to provide a device for automatic wetting of the bead base of vehicle tires, which enables uniform wetting with a minimum of time, regardless of the viscosity of the wetting medium.

Bei der erfindungsgemäßen Vorrichtung ist eine Benetzungsstation einem Zuführförderer zugeordnet, der den Reifen vorzugsweise horizontal fördert. Eine Haltevorrichtung in der Benetzungsstation hält und zentriert den Reifen horizontal, damit eine Benetzungsrolle in den Reifen eintauchen kann. Die Benetzungsrolle ist in einem Haltebauteil um eine vertikale Achse drehbar gelagert. Das Haltebauteil wird von einer entsprechenden Verstellvorrichtung von einer Ruheposition in die Arbeitsposition und zurück verstellt. In der Arbeitsposition liegt die Benetzungsrolle gegen den Reifenwulst an. In der Ruheposition befindet sich die Benetzungsrolle außerhalb des Reifens, vorzugsweise an seiner Unterseite. Der Benetzungsrolle ist eine Auftragvorrichtung zugeordnet, mit der das Benetzungsmedium auf die Benetzungsrolle aufgetragen wird. Die relativ zur Benetzungsrolle stationäre Auftragvorrichtung ist an eine Dosierpumpe angeschlossen, mit der das Benetzungsmedium dosiert der Auftragvorrichtung zugeführt wird. Unterhalb der Benetzungsrolle ist ein Auffangbehälter angeordnet, in dem von der Benetzungsrolle abtropfendes Benetzungsmedium hineinläuft.In the device according to the invention, a wetting station is assigned to a feed conveyor, which preferably conveys the tire horizontally. A holding device holds and centers the tire horizontally in the wetting station so that a wetting roller can be immersed in the tire. The wetting roller is rotatably mounted in a holding component about a vertical axis. The holding component is moved from a rest position into the working position and back by a corresponding adjusting device. In the working position, the wetting roller rests against the tire bead. In the rest position, the wetting roller is located outside the tire, preferably on its underside. An application device is assigned to the wetting roller, with which the wetting medium is applied to the wetting roller. The application device, which is stationary relative to the wetting roller, is connected to a metering pump with which the wetting medium is metered to the application device. Arranged below the wetting roller is a collecting container into which wetting medium drips from the wetting roller.

Reifen und Benetzungsrolle müssen relativ zueinander drehen. Es ist zwar denkbar, die Benetzungsrolle einmal um den Innenumfang des Reifens laufen zu lassen, wobei die Benetzungsrolle an den Wülsten abrollt. Vorteilhafter ist es, wenn die Benetzungsrolle an einem Ort gehalten und der Reifen in Drehung versetzt wird. Die Benetzungsrolle kann dabei durch Reibung mitgenommen werden, braucht mithin keinen eigenen Antrieb. Da das Benetzungsmedium jedoch stark gleitfähig ist, es vorzuziehen, wenn auch die Benetzungsrolle drehend angetrieben wird.Tire and wetting roller must rotate relative to each other. It is conceivable for the wetting roller to run once around the inner circumference of the tire, the wetting roller rolling on the beads. It is more advantageous if the wetting roller is held in one place and the tire is set in rotation. The wetting role can be carried along by friction, therefore does not need its own drive. However, since the wetting medium is highly lubricious, it is preferable if the wetting roller is also driven in rotation.

Statt eine Dosierpumpe können auch eine normale Pumpe und ein Zumeßventil vorgesehen werden.Instead of a metering pump, a normal pump and a metering valve can also be provided.

Es gibt verschiedene Möglichkeiten, den Reifen in der Haltevorrichtung um seine vertikale Achse zu drehen. Besonders vorteilhaft ist, wenn der Reifen während seines Transports, zum Beispiel mit Hilfe einer Rollbahn, gegen vertikale Anschlagrollen anläuft, die ihn automatisch zentrieren. Sind zwei parallele Rollenbahnen vorgesehen, von denen die eine auch entgegengesetzt der Zuführförderrichtung angetrieben werden kann, ist es auf diese Weise möglich, den Reifen mit Hilfe der Rollenbahnen und unter Anlage an die Anschlagrollen in Drehung zu versetzen. Besondere Vorkehrungen, um den Reifen während des Benetzens festzuhalten, sind daher nicht erforderlich. Die Anschlagrollen sind vorzugsweise an einem wegschwenkbaren Lagerbauteil gelagert, so daß sie nach dem Beenden des Benetzungsvorgangs weggeschwenkt werden und der Reifen seinen Weg durch die Fertigungsanlage fortsetzen kann.There are various ways of rotating the tire about its vertical axis in the holding device. It is particularly advantageous if the tire runs against vertical stop rollers during its transport, for example with the aid of a runway, which center it automatically. If two parallel roller conveyors are provided, one of which can also be driven in the opposite direction to the feed conveying direction, it is possible in this way to set the tire in rotation by means of the roller conveyors and in contact with the stop rollers. Special precautions to hold the tire in place during wetting are therefore not necessary. The stop rollers are preferably mounted on a pivotable bearing component so that they can be pivoted away after the wetting process has ended and the tire can continue its way through the production system.

Das die Benetzungsrolle tragende Haltebauteil ist vorzugsweise an einem Schwenkarm angebracht, an den eine Feder angreift. Das Haltebauteil ist seinerseits vertikal am Schwenkarm beweglich und wird vorzugsweise mit Hilfe von zwei parallel angeordneten Verstellzylindern in vertikaler Richtung verstellt, wobei die Verstellzylinder durchgehende Kolbenstangen haben, deren beide Enden mit dem die Benetzungsrolle tragenden Schlitten verbunden sind. Die erwähnte Feder teilt dem Schwenkarm und damit der Benetzungsrolle eine vorgegebene Kraft mit, mit der die Benetzungsrolle an den Reifenwülsten anliegt. Ein am Schwenkarm angreifender Verstellzylinder kann den Schwenkarm entgegen der Feder verschwenken, um die Benetzungsrolle mit den Reifenwülsten außer Eingriff zu bringen.The holding component carrying the wetting roller is preferably attached to a swivel arm which is engaged by a spring. The holding component is in turn movable vertically on the swivel arm and is preferably by means of two parallel adjustment cylinders adjusted in the vertical direction, the adjustment cylinders having continuous piston rods, the two ends of which are connected to the carriage carrying the wetting roller. The spring mentioned gives the swivel arm and thus the wetting roller a predetermined force with which the wetting roller rests on the tire beads. An adjusting cylinder acting on the swivel arm can pivot the swivel arm against the spring in order to disengage the wetting roller from the tire beads.

Es gibt auch verschiedene Möglichkeiten, das Benetzungsmedium in der Auftragvorrichtung auf die Benetzungsrolle aufzubringen. Besonders vorteilhaft ist, wenn in einer achsparallelen vertikalen Fläche eine Nut eingeformt ist, die unmittelbar am Umfang der Benetzungsrolle oder in geringem Abstand zu dieser verläuft. Die Nut beginnt vorzugsweise am oberen Ende der Benetzungsrolle, und ihre Länge hängt u.a. von der Viskosität des Benetzungsmediums ab. Je weniger viskos das Benetzungsmedium ist, um so kürzer ist die Nut, da das Benetzungsmedium, nachdem es sich auf der Benetzungsrolle befindet, von selbst an der Rolle weiter nach unter läuft. Bei Verwendung einer Paste erstreckt sich die Nut vorzugsweise über die gesamte Höhe der Benetzungsrolle. Die Nut ist am Boden mit einem Kanal in der Auftragvorrichtung verbunden, der seinerseits an die Dosierpumpe angeschlossen ist.There are also various ways of applying the wetting medium to the wetting roller in the applicator. It is particularly advantageous if a groove is formed in an axially parallel vertical surface which runs directly on the circumference of the wetting roller or at a short distance from it. The groove preferably begins at the top of the wetting roller and its length depends, among other things, on the viscosity of the wetting medium. The less viscous the wetting medium, the shorter the groove, since the wetting medium, after it is on the wetting roller, automatically continues to run down on the roller. When using a paste, the groove preferably extends over the entire height of the wetting roller. The groove is connected at the bottom to a channel in the applicator, which in turn connects to the Dosing pump is connected.

Bei der erfindungsgemäßen Vorrichtung ist unterhalb der Benetzungsrolle ein Auffangbehälter angeordnet, der ebenfalls am Haltebauteil angebracht ist. Überflüssiges an der Benetzungsrolle ablaufendes Benetzungsmedium sammelt sich im Auffangbehälter. Dieser ist vorzugsweise um die Lager-oder Antriebswelle der Benetzungsrolle herum angeordnet derart, daß das Benetzungsmedium nicht in die Lagerung oder zum Antrieb gelangt. Eine Verschmutzung der erfindungsgemäßen Vorrichtung mit Benetzungsmedium findet daher nicht statt. Der Auffangbehälter hat vorzugsweise einen Überlauf. Daher kann flüssiges Medium in einen weiteren Auffangbehälter gelangen und beseitigt werden. Im Auffangbehälter sammeln sich Staub und Partikel, die aufgrund der Reifenfertigung und des Abriebs auf dem Wulst haften, in einem Sumpf. Der Auffangbehälter braucht daher nur in sehr großen Zeitabständen geleert zu werden.In the device according to the invention, a collecting container is arranged below the wetting roller, which is also attached to the holding component. Unnecessary wetting medium running off the wetting roller collects in the collecting container. This is preferably arranged around the bearing or drive shaft of the wetting roller in such a way that the wetting medium does not get into the bearing or the drive. The device according to the invention is therefore not contaminated with wetting medium. The collecting container preferably has an overflow. Therefore, liquid medium can get into another collecting container and be removed. Dust and particles that stick to the bead due to tire manufacture and abrasion collect in a sump in the collecting container. The collecting container therefore only needs to be emptied at very large intervals.

Als Benetzungsrolle kann ein zylindrischer Körper verwendet werden. Der Verlauf der sogenannten Kernfahne des Reifenwulstes ist nicht genau parallel zur Reifenachse. Deshalb ist es zweckmäßig, die Benetzungsrolle in Form eines Doppelkonus auszuführen, bei dem die Verjüngungen einander zugekehrt sind. Der Kegelwinkel ist zweckmäßigerweise so gewählt, daß eine satte Anlage an die Kernfahne ermöglicht wird. Die Benetzungsrolle besteht vorzugsweise aus Aluminium, um einen niedrigen Verschleiß zu erhalten. Vorzugsweise ist jedem Konus eine Auftragvorrichtung zugeordnet, die an eine eigene Dosierpumpe angeschlossen werden kann.A cylindrical body can be used as the wetting roller. The course of the so-called core flag of the tire bead is not exactly parallel to the tire axis. It is therefore expedient to carry out the wetting role in the form of a double cone, in which the tapering faces each other. The cone angle is expediently chosen so that a full contact with the core flag is made possible. The wetting roller is preferably made of aluminum in order to obtain low wear. Each cone is preferably assigned an application device which can be connected to its own metering pump.

Die Dosierpumpe fördert stets frisches Benetzungsmedium zur Auftragvorrichtung, so daß gewährleistet ist, daß immer nur Medium mit gewünschter Viskosität auf die Wülste der Reifen aufgetragen wird. Mit der erfindungsgemäßen Vorrichtung werden zahlreiche Vorteile erzielt. Mit Hilfe der erfindungsgemäßen Benetzungsrolle werden nur die Wulstfüße mit dem Benetzungsmedium benetzt. Eine Verschmutzung von Fertigungsmaschinen oder der Reifenfelgen ist daher ausgeschlossen. Mit Hilfe der erfindungsgemäßen Vorrichtung kann eine exakte Dosierung des Benetzungsmediums stattfinden. Die erfindungsgemäße Vorrichtung ist für alle vorkommenden Viskositäten des Benetzungsmediums geeignet, d.h. sowohl für flüssiges als auch pastenförmiges Medium. Während des Betriebes bleibt die Viskosität gleich und damit auch der Benetzungsgrad.The dosing pump always delivers fresh wetting medium to the application device, so that it is ensured that only medium with the desired viscosity is applied to the beads of the tires. Numerous advantages are achieved with the device according to the invention. With the aid of the wetting roller according to the invention, only the bead feet are wetted with the wetting medium. A Soiling of production machines or tire rims is therefore excluded. With the aid of the device according to the invention, an exact metering of the wetting medium can take place. The device according to the invention is suitable for all occurring viscosities of the wetting medium, ie for both liquid and pasty medium. The viscosity remains the same during operation, and with it the degree of wetting.

Mit Hilfe der Anschlagrolle und der doppelten Rollenbahn läßt sich ein schnelles und leichtes Zentrieren des Reifens erzielen sowie eine Drehbewegung der Reifen an den Anschlagrollen. Es wird daher ein erheblicher Aufwand an apparativem Material und an Taktzeit eingespart.With the help of the stop roller and the double roller conveyor, a quick and easy centering of the tire can be achieved as well as a rotational movement of the tires on the stop rollers. This saves a considerable amount of equipment and cycle time.

Die Erfindung wird nachfolgend anhand von Zeichnungen näher erläutert.

Fig. 1
zeigt eine Draufsicht auf die schematisch dargestellte Benetzungsvorrichtung nach der Erfindung.
Fig. 2
zeigt einen Schnitt durch die Darstellung nach Fig. 1 entlang der Linie 2-2.
Fig. 3
zeigt eine Ansicht der Vorrichtung nach Fig. 2 in Richtung des Pfeils 3.
Fig. 4
zeigt schematisch die Seitenansicht der Benetzungsvorrichtung nach der Erfindung.
Fig. 5
zeigt eine andere Seitenansicht der Vorrichtung nach Fig. 4.
Fig. 6
zeigt einen Schnitt durch eine Auftragvorrichtung für die Benetzungsrolle der Benetzungsvorrichtung nach den Figuren 1 bis 5.
Fig. 7
zeigt schematisch den Fluß des Benetzungsmediums in der Benetzungsvorrichtung nach der Erfindung.
The invention is explained in more detail below with reference to drawings.
Fig. 1
shows a plan view of the schematically illustrated wetting device according to the invention.
Fig. 2
shows a section through the representation of FIG. 1 along the line 2-2.
Fig. 3
shows a view of the device of FIG. 2 in the direction of arrow 3.
Fig. 4
shows schematically the side view of the wetting device according to the invention.
Fig. 5
4 shows another side view of the device according to FIG. 4.
Fig. 6
shows a section through an application device for the wetting roller of the wetting device according to FIGS. 1 to 5.
Fig. 7
shows schematically the flow of the wetting medium in the wetting device according to the invention.

Es wird ausdrücklich darauf hingewiesen, daß die zeichnerischen Darstellungen äußerst schematisch und nicht maßstäblich sind.It is expressly pointed out that the graphic representations are extremely schematic and not to scale.

In einem nicht näher dargestellten Gestell 10 sind parallel zwei Rollenbahnen 11, 12 angeordnet, die in bekannter Weise Rollen 13 bzw. 14 aufweisen. Die Rollen 13, 14 werden von getrennten nicht gezeichneten Antrieben angetrieben. Der Antrieb für die Rollenbahn 12 ist umkehrbar, so daß die Rollenbahn 12 in beiden Richtungen fördern kann, wie durch den Doppelpfeil 15 angedeutet. Die Rollenbahn 11 fördert nur in einer Richtung, wie durch den Pfeil 16 angedeutet ist. Die Rollenbahnen 11, 12 verlaufen horizontal.In dem Zwischenraum zwischen den Bahnen 11, 12 ist eine Benetzungsvorrichtung 17 angeordnet, auf die weiter unten noch eingegangen wird. Oberhalb der Rollenbahnen 11, 12 und parallel zur Ebene der Rollen 13, 14 ist eine Lagerplatte 18 angeordnet. Mit der Platte 18 sind Lagerstangen 19 verbunden, die vertikal nach unten ragen. Auf den Lagerstangen 19 sind Anschlagrollen 20 drehbar gelagert. Bei der in den Figuren 1 und 2 dargestellten Vorrichtung sind vier Anschlagrollen 20 vorgesehen, die paarweise jeweils einer Rollenbahn 11 bzw. 12 zugeordnet sind. Ihre Achsen liegen auf einem Kreisbogen, dessen Mitte auf der Mittellinie zwischen den Rollenbahnen 11, 12 liegt. Mit Hilfe der Rollenbahnen 11, 12 werden Reifen in Richtung der Anschlagrollen 20 gefördert. Die Anschlagrollen 20 bewirken automatisch eine Zentrierung der Reifen, wie in Fig. 1 dargestellt ist. Ein Reifen 21 ist strichpunktiert in Anlage an den Rollen 20 dargestellt.In a frame 10, not shown, two roller conveyors 11, 12 are arranged in parallel, which have rollers 13 and 14 in a known manner. The rollers 13, 14 are driven by separate drives, not shown. The drive for the roller conveyor 12 is reversible, so that the roller conveyor 12 can convey in both directions, as indicated by the double arrow 15. The roller conveyor 11 only conveys in one direction, as indicated by the arrow 16. The roller tracks 11, 12 run horizontally. In the space between the tracks 11, 12 there is a wetting device 17 arranged, which will be discussed further below. A bearing plate 18 is arranged above the roller tracks 11, 12 and parallel to the plane of the rollers 13, 14. Bearing rods 19 are connected to the plate 18 and project vertically downwards. Stop rollers 20 are rotatably mounted on the bearing rods 19. In the device shown in FIGS. 1 and 2, four stop rollers 20 are provided, each of which is assigned in pairs to a roller conveyor 11 or 12. Their axes lie on a circular arc, the center of which lies on the center line between the roller tracks 11, 12. With the help of the roller conveyors 11, 12 tires are conveyed in the direction of the stop rollers 20. The stop rollers 20 automatically center the tires, as shown in FIG. 1. A tire 21 is shown in dash-dot lines in contact with the rollers 20.

Unterhalb der Platte 18 erstreckt sich eine Welle 22, die an beiden Enden bei 23 und 24 im Gestell 10 drehbar gelagert ist. Wie aus Fig. 3 zu erkennen, ist ein Ende der Welle mit einem Hebelarm 25 verbunden, deren anderes unteres Ende bei 26 mit der Kolbenstange eines Verstellzylinders 27 verbunden ist. Der Verstellzylinder 27 ist bei 28 mit dem Gestell 10 verbunden. Die Welle 22 ist fest mit der Platte 18 verbunden, beispielsweise durch Verschweißung. Wird der Verstellzylinder 27 betätigt, wird die Platte 18 um die Achse der Welle 22 verschwenkt. Dadurch heben die Anschlagrollen 20 an in Richtung des Pfeils 29 (Fig. 3). Bei einem Verschwenken der Anschlagrollen 20 in der beschriebenen Weise kann ein Reifen 21 mit Hilfe der Rollenbahn 11, 12 weiter gefördert werden.A shaft 22 extends below the plate 18 and is rotatably supported at 23 and 24 in the frame 10 at both ends. As can be seen from FIG. 3, one end of the shaft is connected to a lever arm 25, the other lower end of which is connected at 26 to the piston rod of an adjusting cylinder 27. The adjusting cylinder 27 is connected to the frame 10 at 28. The shaft 22 is fixedly connected to the plate 18, for example by welding. If the adjusting cylinder 27 is actuated the plate 18 is pivoted about the axis of the shaft 22. As a result, the stop rollers 20 lift in the direction of the arrow 29 (FIG. 3). When the stop rollers 20 are pivoted in the manner described, a tire 21 can be conveyed further by means of the roller conveyor 11, 12.

Es wurde bereits erwähnt, daß die Rollenbahn 12 in beiden Förderrichtungen betrieben werden kann. Liegt der Reifen 21 an den Anschlagrollen 20 an und wird die Rollenbahn 12 in Rückwärtsrichtung und die Rollenbahn 11 in Vorwärtsrichtung angetrieben, wird der Reifen 21, an den Anschlagrollen 20 anliegend, in Drehung versetzt. Die Drehung ist entgegengesetzt der Uhrzeigerrichtung.It has already been mentioned that the roller conveyor 12 can be operated in both conveying directions. If the tire 21 lies against the stop rollers 20 and the roller conveyor 12 is driven in the rearward direction and the roller conveyor 11 is driven in the forward direction, the tire 21, resting against the stop rollers 20, is set in rotation. The rotation is counterclockwise.

Die Benetzungsvorrichtung 17 wird in den nachfolgenden Figuren 4 bis 7 im einzelnen erläutert. Unterhalb der Rollenbahnen 11, 12 ist ein Haltearm 30 angeordnet, der mit Hilfe einer vertikalen Lagerstange 31 bei 32 und 33 schwenkbar im Gestell 10 gelagert ist. Am Haltearm 30 sind zwei Verstellzylinder angebracht, von denen einer in Fig. 5 bei 34 zu erkennen ist. Die Verstellzylinder sind parallel zueinander angeordnet und weisen eine durchgehende Kolbenstange 35 auf. Die Kolbenstange 35 ist an den Enden bei 36 bzw. 37 mit einem Schlitten 38 verbunden. Der Schlitten 38 kann daher entsprechend Doppelpfeil 39 vertikal angehoben und abgesenkt werden. Die beiden Verstellzylinder 34 sind daher sowohl Verstellmittel als auch Führung für den Schlitten 38. Am Tragarm 30 greift eine Feder 40 an, die den Arm 30 in eine erste Drehrichtung vorspannt. Am Arm 30 greift ferner die Kolbenstange eines Verstellzylinders 41 an, mit dem der Tragarm 30 entgegen der Feder 40 in die andere Drehrichtung verschwenkt werden kann.The wetting device 17 is explained in detail in the following FIGS. 4 to 7. Arranged below the roller conveyors 11, 12 is a holding arm 30 which is pivotally mounted in the frame 10 at 32 and 33 by means of a vertical bearing rod 31. Two adjusting cylinders are attached to the holding arm 30, one of which can be seen at 34 in FIG. 5. The adjusting cylinders are arranged parallel to one another and have a continuous piston rod 35. The piston rod 35 is connected at the ends at 36 and 37 to a slide 38. The carriage 38 can therefore be raised and lowered vertically in accordance with the double arrow 39. The two adjustment cylinders 34 are therefore both adjusting means and guide for the slide 38. A spring 40 engages the support arm 30, which biases the arm 30 in a first direction of rotation. The arm 30 also engages the piston rod of an adjusting cylinder 41, with which the support arm 30 can be pivoted against the spring 40 in the other direction of rotation.

Am Schlitten 38, der als Platte ausgebildet ist, ist ein Auffangbehälter 42 angebracht. Der Auffangbehälter 42 besitzt einen mittigen Durchgang 43, durch den eine Antriebswelle 44 für eine oberhalb des Auffangsbehälters 42 angeordnete Benetzungsrolle 45 hindurchgeführt ist.Im Durchgang 43 ist auch die Lagerung für die Antriebswelle 44 enthalten, die jedoch nicht dargestellt ist. Am unteren Ende ist an der Welle 44 eine Riemenscheibe 46 angebracht. Am Auffangbehälter 42 ist an einem Tragarm 47 ein Antriebsmotor 48 aufgehängt mit einer Riemenscheibe 49. Mit Hilfe des Motors 48 kann daher die Welle 44 in Drehung versetzt werden und damit auch die Benetzungsrolle 45. Der obere Öffnungsrand 50 des Auffangbehälters 42 umgibt in radialem Abstand den unteren Bereich der Benetzungsrolle 45.A collecting container 42 is attached to the slide 38, which is designed as a plate. The collecting container 42 has a central passage 43, through which a drive shaft 44 for a wetting roller 45 arranged above the collecting container 42 is passed. The bearing 43 also contains the bearing for the drive shaft 44, which is not shown, however. A pulley 46 is attached to the shaft 44 at the lower end. A drive motor 48 is suspended from the collecting container 42 on a support arm 47 with a pulley 49. With the help of the motor 48, the shaft 44 can therefore be set in rotation and thus also the wetting roller 45. The upper opening edge 50 of the collecting container 42 surrounds it at a radial distance lower area of the wetting roller 45.

Am Schlitten 38 ist außerdem eine Dosierpumpe 51 angebracht, die von einem Pumpenmotor 52 angetrieben ist.A metering pump 51 is also attached to the carriage 38 and is driven by a pump motor 52.

Aus den Figuren 1 und 7 geht hervor, daß der Benetzungsrolle 45 eine Auftragvorrichtung 53 zugeordnet ist. Wie aus Fig. 6 hervorgeht, weist sie eine aufrechte Platte 54 auf, die tangential zum Umfang der Benetzungsrolle 45 angeordnet ist (siehe auch Fig. 1). Sie kann unmittelbar gegen die Benetzungsrolle 45 anliegen, sie kann auch einen geringen Spalt zu dieser haben, wie bei S in Fig. 7 dargestellt. Die der Benetzungsrolle 45 zugewandte Fläche 55 der Platte 54 weist eine Nut 56 auf, deren Achse parallel zur Achse der Benetzungsrolle 45 verläuft. In der Platte 54 ist eine vertikale Bohrung 57 geformt, die über eine Querbohrung 58 mit der Nut 56 in Verbindung ist. Am unteren Ende der Bohrung 57 ist eine weitere Querbohrung 59 vorgesehen, die mit einem Anschluß 60 für eine Leitung verbunden ist. Die Platte 54 steht auf einer Platte 61. Ein Klotz 62 auf der Platte 61 ist mit dieser und der aufrechten Platte 54 verbunden. Die in Fig. 6 dargestellte Auftragvorrichtung 53 ist ebenfalls mit dem Schlitten 38 (siehe Figuren 4 und 5) fest verbunden.It can be seen from FIGS. 1 and 7 that the wetting roller 45 is assigned an application device 53. As can be seen from FIG. 6, it has an upright plate 54 which is arranged tangentially to the circumference of the wetting roller 45 (see also FIG. 1). It can lie directly against the wetting roller 45; it can also have a small gap with it, as shown at S in FIG. 7. The surface 55 of the plate 54 facing the wetting roller 45 has a groove 56, the axis of which runs parallel to the axis of the wetting roller 45. A vertical bore 57 is formed in the plate 54, which is connected to the groove 56 via a transverse bore 58. At the lower end of the bore 57, a further transverse bore 59 is provided, which is connected to a connection 60 for a line. The plate 54 stands on a plate 61. A block 62 on the plate 61 is connected to this and the upright plate 54. The application device 53 shown in FIG. 6 is also firmly connected to the carriage 38 (see FIGS. 4 and 5).

Wie aus Fig. 7 hervorgeht, ist der Anschluß 60 über eine Leitung 64 mit dem Ausgang der Dosierpumpe 51 verbunden. Die Dosierpumpe 51 fördert aus einem gestellfesten Behälter 65 frisches Benetzungsmedium über die Leitungen 66 und 64 zur Auftragvorrichtung 53. Ist das Benetzungsmedium mit einer geringen Viskosität ausgestattet, reicht es aus, wenn die Auftragnut 56 eine verhältnismäßig geringe Länge hat. Es sei noch erwähnt, daß die Auftragnut 56 annähernd mit dem oberen Ende der Benetzungsrolle 45 zusammenfällt. Je viskoser das Benetzungsmedium ist, um so länger muß die Nut 56 gewählt werden. Bei Verwendung von pastenförmigem Benetzungsmittel kann die Nut sich annähernd über die gesamte Höhe der Benetzungsrolle 45 erstrecken, wie durch die gestrichelte Linie 67 in Fig. 6 angedeutet. Die Paste wird der Dosierpumpe unter Druck zugeführt.As can be seen from FIG. 7, the connection 60 is connected via a line 64 to the output of the metering pump 51. The metering pump 51 conveys fresh wetting medium from a container 65 fixed to the frame via lines 66 and 64 to the application device 53 it if the application groove 56 has a relatively short length. It should also be mentioned that the application groove 56 approximately coincides with the upper end of the wetting roller 45. The more viscous the wetting medium, the longer the groove 56 must be selected. When using paste-like wetting agent, the groove can extend approximately over the entire height of the wetting roller 45, as indicated by the dashed line 67 in FIG. 6. The paste is fed to the dosing pump under pressure.

Da die Benetzungsrolle 45 gedreht wird, ist es möglich, auf die Wulste des Fahrzeugreifens einen gleichmäßigen Auftrag zu erzielen. Überflüssiges Benetzungsmittel läuft in den Auffangbehälter 42, der einen Überlauf 68 aufweist. Über den Überlauf läuft flüssiges Benetzungsmittel in einen weiteren Auffangbehälter 69. Im Auffangbehälter 42 verbleiben daher im wesentlichen nur Verunreinigungen, die von Zeit zu Zeit entfernt werden müssen.Since the wetting roller 45 is rotated, it is possible to achieve a uniform application on the beads of the vehicle tire. Unnecessary wetting agent runs into the collecting container 42, which has an overflow 68. Liquid wetting agent runs via the overflow into a further collecting container 69. In the collecting container 42, therefore, essentially only contaminants remain which have to be removed from time to time.

Aus der obigen Beschreibung geht hervor, daß die Benetzungsrolle 45 mit Hilfe des Tragarms 30 und des Schlittens 38 in einer horizontalen Ebene verschwenkbar und vertikal bewegbar ist. Bevor ein Reifen 21 an die Anschlagrollen 20 gelangt, befindet sich die Benetzungsrolle 45 in einer unteren Ruheposition unterhalb der Rollenbahnen 11, 12. Der Verstellzylinder 41 hält den Tragarm in einer Stellung, in der sich die Benetzungsrolle innerhalb eines Bereichs befindet, der durch den Innenumfang des kleinsten und größten Reifens 21 definiert ist. Die Reifen können der Anlage im übringen unsortiert zugeführt werden. Ist nun der Reifen 21 an den Anschlagrollen 20 angelangt, wird zunächst der Schlitten 38 nach oben verstellt, so daß die Benetzungsrolle 45 in den Reifen 21 eintaucht. Anschließend wird der Verstellzylinder 41 entlastet. Die Feder 40 verschwenkt nun den Arm 30 bis die Benetzungrolle 45 mit einem vorgegebenen Druck gegen die beiden Wülste (besser Wulstfüße) des Reifens 21 mit einem vorgegebenen Anpreßdruck anliegt. Der Reifen 21 wird in der oben beschriebenen Weise in Drehung versetzt. Außerdem wird mit Hilfe des Motors 48 die Benetzungsrolle 45 mit vorgegebener Geschwindigkeit angetrieben. Die Dosierpumpe 51 fördert gleitfähiges Benetzungsmittel zur Auftragvorrichtung 53, so daß eine Benetzung der Wulstfüße über den gesamten Umfang stattfindet. Ist dieser Vorgang beendet, wird der Verstellzylinder 41 wieder mit Druck beaufschlagt, und die Benetzungsrolle 45 schwenkt von den Wulstfüßen fort. Nunmehr kann der Schlitten 38 von den Verstellzylindern 34 wieder nach unten in die Ruheposition verstellt werden.From the above description it is apparent that the wetting roller 45 can be pivoted and moved vertically in a horizontal plane with the aid of the support arm 30 and the slide 38. Before a tire 21 reaches the stop rollers 20, the wetting roller 45 is in a lower rest position below the roller tracks 11, 12. The adjusting cylinder 41 holds the support arm in a position in which the wetting roller is within a range defined by the inner circumference of the smallest and largest tire 21 is defined. The tires can be fed to the system unsorted will. If the tire 21 has now reached the stop rollers 20, the carriage 38 is first moved upward, so that the wetting roller 45 is immersed in the tire 21. The adjusting cylinder 41 is then relieved. The spring 40 now pivots the arm 30 until the wetting roller 45 rests with a predetermined pressure against the two beads (better bead feet) of the tire 21 with a predetermined contact pressure. The tire 21 is rotated in the manner described above. In addition, the wetting roller 45 is driven by the motor 48 at a predetermined speed. The metering pump 51 conveys lubricious wetting agent to the application device 53, so that the bead feet are wetted over the entire circumference. When this process is finished, the adjusting cylinder 41 is pressurized again and the wetting roller 45 swings away from the bead feet. The carriage 38 can now be adjusted downward into the rest position by the adjustment cylinders 34.

In den Zeichnungen ist die Benetzungsrolle 45 zylindrisch dargestellt. Sie kann auch in Form eines Doppelkonus gestaltet werden, wobei ein Konus in Eingriff mit dem einen und der andere in Eingriff mit dem zweiten Wulst eines Reifens bringbar ist. Der Kegelwinkel ist an den Verlauf der Kernfahne angepaßt. Vorzugsweise ist jedem Konus eine eigene Auftragvorrichtung zugeordnet, die mit einer eigenen Dosierpumpe verbunden ist. Die Auftragvorrichtung kann entsprechend der Ausführungsform nach Fig. 6 gestaltet werden.In the drawings, the wetting roller 45 is shown cylindrically. It can also be designed in the form of a double cone, wherein one cone can be brought into engagement with one and the other into engagement with the second bead of a tire. The cone angle is adapted to the shape of the core flag. Everyone is preferred Cone assigned its own application device, which is connected to its own metering pump. The application device can be designed in accordance with the embodiment according to FIG. 6.

Es versteht sich, daß der beschriebene Betrieb der Benetzungsvorrichtung durch den Einsatz einer geeigneten Steuervorrichtung vollständig automatisch durchgeführt werden kann; die Steuervorrichtung erfaßt die Positionen der einzelnen verstellbaren Teile und gibt den Verstellvorrichtungen nach einem vorgegebenen Programm entsprechende Steuersignale.It is understood that the described operation of the wetting device can be carried out completely automatically by using a suitable control device; the control device detects the positions of the individual adjustable parts and gives the adjustment devices corresponding control signals according to a predetermined program.

Claims (14)

  1. An apparatus for automatically humidifying the beads of rubber tires with a humidifying agent, comprising supply conveying means (11,12) for individually conveying the tires (21) to a humidifying station, in which a retainer means (18,20) horizontally retains and centers the tire (21), an upright arranged humidifying roller (45) which is supported by a support means (38) of the humidifying station for rotation about an axis, applying means (53) associated with the humidifying roller, for applying the humidifying agent to the humidifying roller (45) and which supplying means is in communication with a source (65) of the humidifying agent, a collecting container 842) mounted on the support means (38) below the humidifying roller (45), surplus humidifying agent dropping from the humidifying roller into the collecting container, and an actuating means (34,40,41) engaging the support means for moving the humidifying roller (45) between a stand-by position remote from the tire (21) and an operating position in which the humidifying roller (45) plunges within the tire (21) and engages the bead foot of the tire beads, characterized in that the retaining means (18,20) retaine the tire in a horizontal position and that the humidifying roller (45) is rotatably supported about a vertical axis, that the collecting container (42) is located below the lower end of the humidifying roller (45), that the supplying means (53) separately arranged with respect to the collecting container is provided with an applying surface (55) which is tangentially and stationarily relative to the humidifying roller (45) arranged at the periphery of the humidifying roller (45) in engagement therewith or, respectively in a short distance therefrom, and that the supplying means (53) is in communication with at least a metering means (51) connected to the source (65) for humidifying agent.
  2. The apparatus of claim 1 characterized in that the humidifying roller (45) is driven by a motor (48).
  3. The apparatus of claim 2 characterized in that a drive shaft (44) engaging the lower end of the humidifying roller (45) sealingly extends through the collecting container (42).
  4. The apparatus of claim 1 characterized in that a vertical groove (56) parallel to the axis is formed in the applying surface (55) said groove having an upper end which is located approximately in height of the upper end of the humidifying roller (45) and which is connected to the output line (64) of the metering pump (51).
  5. The apparatus of claim 1 characterized in that the collecting container (42) is provided with an overflow (68) which is connected to a second movable collecting container (69).
  6. The apparatus of one of claims 1 to 5 characterized in that the humidifying roller is formed as a double cone wherein the tapered portions of the cones are adjacent each other and wherein the cone angles are selected to fit to the inclination of the adjacent bead surfaces.
  7. The apparatus of one of claims 1 to 6 characterized in that the humidifying roller is made of aluminum or, respectively is provided with an aluminum jacket.
  8. The apparatus of claim 6 characterized in that each cone of the humidifying roller is associated to an individual applying means each of which may be associated to an individual metering means.
  9. The apparatus of claim 1 characterized in that the retaining means is provided with a roller retainer (18) supporting abutment rollers (20) around a vertical axis which abutment rollers are arranged on a circular arc slightly above the supply conveyor means (11,12) and that driving means can engage the tire (21) to rotate a tire (21) contacting said abutment rollers (20).
  10. The apparatus of claim 9 characterized in that the supply conveying means is provided with a pair of separate parallel roller trains (11,12) which are driven by separate driving means, wherein a driving means drives a roller train (11,12) in both directions and wherein for conveying the tire to the abutment roller (20) both roller trains (11,12) are driven in the same direction and for rotating the tire (21) contacting the abutment rollers (20) in opposite direction.
  11. The apparatus of claim 9 characterized in that the roller retainer (18) is pivoted around a horizontal axis upwardly and that an adjusting cylinder (27) engages the roller retainer (18) via a pivot arm (25).
  12. The apparatus of claim 1 characterized in that the retaining means includes a slide (38) supporting the humidifying roller (45), retaining the collecting container (42) and supported vertically adjustable on a pivot arm (30), that an adjusting means (34) for the slide (38) is provided on the pivot arm (30) which is pivotally supported in the humidifying station that a spring (40) engages the pivot arm (30) tending to pivot the humidifying roller (45) to the operating position and that an actuating cylinder (41) engages the pivot arm (30) to move the pivot arm to its stand-by position against the force of the spring (40).
  13. The apparatus of claim 12, characterized in that the actuating means includes a pair of parallel arranged actuating cylinders (34) of which the piston rod (35) extends therethrough and wherein both ends of the piston rod (35) are connected to the slide (38).
  14. The apparatus of claim 1 characterized in that the collecting container (42) surrounds the lower end of the humidifying roller (45) and that the bearings of the humidifying roller (45) are sealed with respect to the collecting container (42).
EP86106386A 1985-09-20 1986-05-10 Apparatus for the application of a wetting agent to tyre beads Expired - Lifetime EP0220365B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106386T ATE64326T1 (en) 1985-09-20 1986-05-10 DEVICE FOR AUTOMATIC WETTING OF THE BEAD BASE OF RUBBER VEHICLE TIRES WITH A WETTING MEDIUM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US778359 1985-09-20
US06/778,359 US4665860A (en) 1985-09-20 1985-09-20 Apparatus for automatically humidifying the bead of tires made of rubber with a humidifying agent

Publications (3)

Publication Number Publication Date
EP0220365A2 EP0220365A2 (en) 1987-05-06
EP0220365A3 EP0220365A3 (en) 1988-08-10
EP0220365B1 true EP0220365B1 (en) 1991-06-12

Family

ID=25113070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106386A Expired - Lifetime EP0220365B1 (en) 1985-09-20 1986-05-10 Apparatus for the application of a wetting agent to tyre beads

Country Status (4)

Country Link
US (1) US4665860A (en)
EP (1) EP0220365B1 (en)
AT (1) ATE64326T1 (en)
DE (1) DE3679768D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6676789B1 (en) 1999-05-20 2004-01-13 The Goodyear Tire And Rubber Company Tire building apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754358A (en) * 1969-08-12 1973-08-28 Goodrich Co B F Method for correcting non-uniformity in a rotating tire
US3658152A (en) * 1971-01-11 1972-04-25 Sparton Corp Tire bead lubricator
SU417309A1 (en) * 1971-05-18 1974-02-28
US3825965A (en) * 1973-04-09 1974-07-30 Exxon Research Engineering Co Apparatus for cleaning tire inner-liners
US3852008A (en) * 1973-07-26 1974-12-03 Uniroyal Inc Apparatus for cooling tires during post-inflation
US4183321A (en) * 1978-03-16 1980-01-15 Ziegelmeyer Harold R Gluing mechanism for finger slotting machines

Also Published As

Publication number Publication date
EP0220365A2 (en) 1987-05-06
US4665860A (en) 1987-05-19
EP0220365A3 (en) 1988-08-10
DE3679768D1 (en) 1991-07-18
ATE64326T1 (en) 1991-06-15

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