EP1115576B1 - Powder device with a constant supply of powder - Google Patents

Powder device with a constant supply of powder Download PDF

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Publication number
EP1115576B1
EP1115576B1 EP99934606A EP99934606A EP1115576B1 EP 1115576 B1 EP1115576 B1 EP 1115576B1 EP 99934606 A EP99934606 A EP 99934606A EP 99934606 A EP99934606 A EP 99934606A EP 1115576 B1 EP1115576 B1 EP 1115576B1
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EP
European Patent Office
Prior art keywords
powder
container
intermediate container
powder device
sensor
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EP99934606A
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German (de)
French (fr)
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EP1115576A1 (en
Inventor
Reiner Haas
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Weitmann and Konrad GmbH and Co KG
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Weitmann and Konrad GmbH and Co KG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/06Powdering devices, e.g. for preventing set-off

Definitions

  • the invention relates to a powdering device for powdering printed sheet with the characteristics of the generic term of Claim 1.
  • a sheet delivery device has a powder device, with which the powder is applied to the sheets.
  • the powder devices usually have one Powder container in which the powder is stored.
  • This Powder container has an opening at its lower end that e.g. is closed by a ball (DE 38 11 309 A1).
  • the ball is in the container and thus in the stored Pounded in powder, which loosens the powder becomes.
  • compressed air is generated when the container is open blown.
  • the powder removed from the powder container falls into a mixture conditioner in which the compressed air with powder enriched and a powder-air mixture is generated.
  • Another device provides that the outflow opening the powder container from a moving disc is closed. If the disc is moved, it trickles out a gap between the disc and the outflow opening of the Powder container a certain amount of powder. This powder is made by a flowing air flow is captured and carried away. Becomes in this device the powder container e.g. for refilling removed, then the air can no longer be enriched with powder become. Continuous operation is not possible.
  • DE-A-1 611 317 discloses a powdering device for powdering printed sheet.
  • the powder device is made by one Storage container and a mixing container formed.
  • the DE-A-3 819 203 discloses a pollination device in which the Outlet opening of the storage container via a swinging Disc is covered.
  • the invention has for its object a powder device provide with which a continuous Operation guaranteed even when changing the powder container is.
  • the powder container powder taken out is not directly discharged into the air flow is, but gets into an intermediate container, of which the Powder over the dosing element the actual air flow over the Dosing device is supplied.
  • the intermediate container serves as further storage room, so that e.g. when replacing the powder container powder still taken from the intermediate container can be, whereby a continuous operation also with (briefly) removed powder container is guaranteed.
  • the powder in the Intermediate container has a largely constant bulk density has, regardless of whether the powder just before has recently been filled into the powder container and thus still has a relatively high proportion of air, or whether the Powder filled into the air container some time ago and has a higher bulk density. Since the Powder flows from the powder container into the intermediate container and the dwell time in the intermediate container is relatively constant, is the powder with almost constant bulk density and therefore with an almost constant proportion of air in the metering device passed. This way the powder content in the Compressed air set even more precisely to the desired value.
  • the powder container Intermediate container and the dosing element in a vertical orientation are arranged one behind the other and the powder from one element on the other hand is passed down.
  • the powder flows from the powder container over the intermediate container exclusively via gravity to the dosing device and it no transport air is required.
  • the The intermediate container is essentially funnel-shaped is. This has the main advantage that the powder can set within the intermediate container, that is, in the Air contained in powder can escape, making the powder a contains homogeneous bulk density. The air is through the gradual narrowing of the cross section of the intermediate container expelled from the powder.
  • the intermediate container at least in sections has elastic outer wall.
  • the powder container has the powder container in Vibratory means, e.g. a vibrator or one Drive for opening and closing the outflow opening on and usually the dosing organ also causes Vibrations that are transferred to the intermediate container. These vibrations cause movements in the elastic Container wall, so that baking due to these movements of the powder on the inner wall of the container is prevented. On there is constant flow of powder in the direction of the outlet thus guaranteed. There is the elastic Outer wall immediately in front of the dosing device. There is even the smallest cross section in the intermediate container, where the Danger of bridging is highest.
  • Vibratory means e.g. a vibrator or one Drive for opening and closing the outflow opening on and usually the dosing organ also causes Vibrations that are transferred to the intermediate container. These vibrations cause movements in the elastic Container wall, so that baking due to these movements of the powder on the inner wall of the container is prevented. On there is constant flow of powder in the direction of the outlet thus guaranteed.
  • the intermediate container a sensor that detects the fill level of the powder having. If the fill level drops below a specified level Value, then powder is removed from the powder container and the Intermediate tank filled up.
  • the hysteresis can be between the sensor signal and the filling can be chosen arbitrarily.
  • the intermediate container is advantageously always refilled when about 10% of the powder volume has been removed has been.
  • the senor is on optical sensor, an inductive sensor or a capacitive Sensor.
  • an optical sensor this can e.g. as Photoelectric switch designed with visible or infrared light his.
  • the drawing shows a lower section of a Powder container 1, which means in a container receptacle 2 a quick release system 3 is attached.
  • the Container holder 2 swings perpendicular to the plane of the drawing.
  • the Powder container 1 has at its lower end 4 Outflow opening 5 for the one stored in the powder container 1 Powder on.
  • This outflow opening 5 opens into an overall designated 6 intermediate container, which in turn in a total of 7 dosing organ opens.
  • This Dosing member 7 is elastically supported by its drive. Between the bottom of the container holder 2 and the There is a gap 8 at the top of the intermediate container 6, through which the interior of the intermediate container 6 with the Environment is connected. There is in the intermediate container 6 thus ambient pressure.
  • the lower end 4 of the powder container 1 protrudes relatively far into the intermediate container 6, whereby it is ensured that no or only from the gap 8 negligible powder leaks.
  • the gap 8 has also the advantage that the intermediate container 6 of the Container receptacle 2 is decoupled and thus also from the Swinging movements of the powder container 1.
  • the section 9 of the powder container facing Intermediate container 6 has an upper cylindrical Jacket section 10 and a lower cylindrical jacket Section 11, which has a smaller diameter than that Has jacket section 10.
  • the two jacket sections 10 and 11 are over a truncated cone shaped section 12 connected to each other.
  • At the free end of the bottom Jacket section 11 is an upper cylindrical one Shell section 14 of a lower section 13, pushed.
  • This jacket section 14 also includes frustoconical shell portion 15, which in a cylindrical lower jacket section 16 runs out.
  • This lower jacket section 16 is on the dosing member 7 connected.
  • the section 13 of the intermediate container 6 consists of a elastic material, e.g. Plastic or rubber, whereas section 9 made of a rigid material, e.g. aluminum consists. Because the metering element 7 is switched on and off, in particular the drive of the metering element 7 Vibrations initiated in section 13. These vibrations or movements cause deformation of the elastic Wall of section 13, whereby the in the intermediate container 6 powder is loosened or at least caking, Columns and bridges are prevented. An outflow or outflow of the powder in the direction of the lower Outlet opening is thus guaranteed.
  • a elastic material e.g. Plastic or rubber
  • section 9 made of a rigid material, e.g. aluminum
  • the drawing also shows that in Material section 11 a sensor 17, in particular a Light barrier 18 is provided with which the fill level in Intermediate container 6 is determined.
  • a sensor 17 In particular a Light barrier 18 is provided with which the fill level in Intermediate container 6 is determined.
  • a (not Actuator shown activated in the direction of the arrow 19 acts on a rocker 20 which is rotatable about an axis 21 is stored.
  • a closure member 22 of the Outflow opening 5 is lifted and powder can be removed from the Pour the powder container 1 into the intermediate container 6.
  • Within the frustoconical shell section 15 is the air permeated powder soothes and it becomes a uniform bulk density created. In this way the Discharge via the metering element 7 is evened out.
  • the level becomes permanent during operation kept at the same level so that the fill level in The intermediate container has no influence on the dosage.
  • the level of the powder container and the bulk density of the Powders in the powder container have no influence on the Dosing as the powder container is completely from the dosing process is uncoupled. Between the powder container and the The metering device is namely the intermediate container.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Coating Apparatus (AREA)

Description

Die Erfindung betrifft eine Pudervorrichtung zum Bepudern bedruckter Bogen mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a powdering device for powdering printed sheet with the characteristics of the generic term of Claim 1.

Es ist allgemein bekannt, dass bedruckte Papierbogen nach dem Verlassen der Druckmaschine bepudert werden, so dass die Druckfarbe beim Abstapeln der Bogen nicht verschmiert. Hierfür weist eine Bogenauslegevorrichtung eine Pudervorrichtung auf, mit der der Puder auf die Bogen aufgebracht wird. Üblicherweise besitzen die Pudervorrichtungen einen Puderbehälter, in welchem der Puder bevorratet wird. Dieser Puderbehälter besitzt an seinem unteren Ende eine Öffnung, die z.B. von einer Kugel verschlossen wird (DE 38 11 309 A1). Um dem Puderbehälter Puder entnehmen zu können, wird die Kugel in den Behälter und somit in den darin sich befindenden, bevorrateten Puder eingeschlagen, wodurch der Puder aufgelockert wird. Außerdem wird bei geöffnetem Behälter Druckluft eingeblasen. Der dem Puderbehälter entnommene Puder fällt in einen Gemischaufbereiter, in welchem die Druckluft mit Puder angereichert und ein Puder-Luft-Gemisch erzeugt wird. It is common knowledge that printed paper sheets after the Leaving the press to be powdered so that the Ink does not smear when stacking sheets. Therefor a sheet delivery device has a powder device, with which the powder is applied to the sheets. The powder devices usually have one Powder container in which the powder is stored. This Powder container has an opening at its lower end that e.g. is closed by a ball (DE 38 11 309 A1). Around To be able to remove powder from the powder container, the ball is in the container and thus in the stored Pounded in powder, which loosens the powder becomes. In addition, compressed air is generated when the container is open blown. The powder removed from the powder container falls into a mixture conditioner in which the compressed air with powder enriched and a powder-air mixture is generated.

Eine andere Vorrichtung sieht vor, dass die Ausströmöffnung des Puderbehälters von einer sich bewegenden Scheibe verschlossen wird. Wird die Scheibe bewegt, dann rieselt aus einem Spalt zwischen der Scheibe und der Ausströmöffnung des Puderbehälters eine gewisse Menge Puder. Dieser Puder wird von einem vorbeiströmenden Luftstrom erfasst und mitgerissen. Wird bei dieser Vorrichtung der Puderbehälter z.B. zum Nachfüllen entfernt, dann kann die Luft nicht mehr mit Puder angereichert werden. Ein kontinuierlicher Betrieb ist nicht möglich.Another device provides that the outflow opening the powder container from a moving disc is closed. If the disc is moved, it trickles out a gap between the disc and the outflow opening of the Powder container a certain amount of powder. This powder is made by a flowing air flow is captured and carried away. Becomes in this device the powder container e.g. for refilling removed, then the air can no longer be enriched with powder become. Continuous operation is not possible.

Die DE-A-1 611 317 offenbart eine Pudervorrichtung zum Bepudern bedruckter Bogen. Die Pudervorrichtung wird von einem Vorratsbehälter und einem Mischbehälter gebildet. Die DE-A-3 819 203 offenbart ein Bestäubungsgerät, bei dem die Auslassöffnung des Vorratsbehälters über eine schwingende Scheibe abgedeckt wird.DE-A-1 611 317 discloses a powdering device for powdering printed sheet. The powder device is made by one Storage container and a mixing container formed. The DE-A-3 819 203 discloses a pollination device in which the Outlet opening of the storage container via a swinging Disc is covered.

Der Erfindung liegt die Aufgabe zugrunde, eine Pudervorrichtung bereitzustellen, mit welcher ein kontinuierlicher Betrieb auch beim Wechsel des Puderbehälters gewährleistet ist.The invention has for its object a powder device provide with which a continuous Operation guaranteed even when changing the powder container is.

Diese Aufgabe wird erfindungsgemäß durch eine Pudervorrichtung gelöst, dis die Merkmale des Anspruchs 1 aufweist. This object is achieved by a powder device solved, dis has the features of claim 1.

Wesentlich für die Erfindung ist, dass der dem Puderbehälter entnommene Puder nicht direkt in den Luftstrom ausgetragen wird, sondern in einen Zwischenbehälter gelangt, von dem der Puder über das Dosierorgan dem eigentlichen Luftstrom über das Dosierorgan zugeführt wird. Der Zwischenbehälter dient als weiterer Vorratsraum, so dass z.B. beim Austausch des Puderbehälters dem Zwischenbehälter nach wie vor Puder entnommen werden kann, wodurch ein kontinuierlicher Betrieb auch bei (kurzzeitig) abgenommenem Puderbehälter gewährleistet ist.It is essential for the invention that the powder container powder taken out is not directly discharged into the air flow is, but gets into an intermediate container, of which the Powder over the dosing element the actual air flow over the Dosing device is supplied. The intermediate container serves as further storage room, so that e.g. when replacing the powder container powder still taken from the intermediate container can be, whereby a continuous operation also with (briefly) removed powder container is guaranteed.

Ein weiterer Vorteil wird darin gesehen, dass der Puder im Zwischenbehälter eine weitestgehend konstante Schüttdichte aufweist, und zwar unabhängig davon, ob der Puder erst vor kurzem in den Puderbehälter eingefüllt worden ist und somit noch einen relativ hohen Luftanteil aufweist, oder ob der Puder bereits vor einiger Zeit in den Luftbehälter abgefüllt worden ist und eine größere Schüttdichte aufweist. Da der Puder vom Puderbehälter in den Zwischenbehälter einströmt und die Verweildauer im Zwischenbehälter relativ konstant ist, wird der Puder mit nahezu gleichbleibender Schüttdichte und demnach mit nahezu konstantem Luftanteil in das Dosierorgan weitergegeben. Auf diese Weise wird der Puderanteil in der Druckluft noch exakter auf den gewünschten Wert eingestellt.Another advantage is seen in the fact that the powder in the Intermediate container has a largely constant bulk density has, regardless of whether the powder just before has recently been filled into the powder container and thus still has a relatively high proportion of air, or whether the Powder filled into the air container some time ago and has a higher bulk density. Since the Powder flows from the powder container into the intermediate container and the dwell time in the intermediate container is relatively constant, is the powder with almost constant bulk density and therefore with an almost constant proportion of air in the metering device passed. This way the powder content in the Compressed air set even more precisely to the desired value.

Erfindungsgemäß ist vorgesehen, dass der Puderbehälter, der Zwischenbehälter und das Dosierorgan in vertikaler Ausrichtung hintereinander angeordnet sind und der Puder vom einen Element zum anderen nach unten weitergegeben wird. Auf diese Weise strömt der Puder vom Puderbehälter über den Zwischenbehälter ausschließlich über die Schwerkraft zum Dosierorgan und es wird keine Transportluft benötigt. Dies hat den wesentlichen Vorteil, dass der Puder nicht aufgewirbelt wird und dass die einzelnen Elemente nicht oder nur mit herkömmlichen Mitteln gegenüber der Umgebung abgedichtet werden müssen.According to the invention it is provided that the powder container Intermediate container and the dosing element in a vertical orientation are arranged one behind the other and the powder from one element on the other hand is passed down. In this way the powder flows from the powder container over the intermediate container exclusively via gravity to the dosing device and it no transport air is required. This has the essential Advantage that the powder is not whirled up and that the individual elements or only with conventional means must be sealed off from the environment.

Bei einem Ausführungsbeispiel ist vorgesehen, dass der Zwischenbehälter im Wesentlichen trichterförmig ausgebildet ist. Dies hat den wesentlichen Vorteil, dass sich der Puder innerhalb des Zwischenbehälters setzen kann, dass also die im Puder enthaltene Luft entweichen kann, wodurch der Puder eine homogene Schüttdichte enthält. Die Luft wird durch die allmähliche Querschnittsverengung des Zwischenbehälters aus dem Puder ausgetrieben.In one embodiment it is provided that the The intermediate container is essentially funnel-shaped is. This has the main advantage that the powder can set within the intermediate container, that is, in the Air contained in powder can escape, making the powder a contains homogeneous bulk density. The air is through the gradual narrowing of the cross section of the intermediate container expelled from the powder.

Ein weiterer Vorteil der Erfindung wird darin gesehen, dass der Zwischenbehälter wenigstens abschnittsweise eine elastische Außenwand aufweist. Über die elastische Außenwand, die z.B. aus Kunststoff oder Gummi besteht und die ihrerseits ebenfalls eine Trichterform aufweist, wird eine Brücken- oder Säulenbildung innerhalb des im Zwischenbehälter bevorrateten Puders verhindert.Another advantage of the invention is seen in that the intermediate container at least in sections has elastic outer wall. Over the elastic outer wall, e.g. made of plastic or rubber and which in turn also has a funnel shape, is a bridge or Column formation within the one stored in the intermediate container Powder prevented.

In der Regel weist der Puderbehälter ein den Puderbehälter in Schwingung versetzendes Mittel, z.B. einen Vibrator oder einen Antrieb zum Öffnen und Schließen der Ausströmöffnung auf und in der Regel verursacht das Dosierorgan ebenfalls Schwingungen, die auf den Zwischenbehälter übertragen werden. Diese Schwingungen verursachen Bewegungen in der elastischen Behälterwand, so dass aufgrund dieser Bewegungen ein Anbacken des Puders an der Behälterinnenwand verhindert wird. Ein stetes Nachströmen des Puders in Richtung des Auslasses ist somit gewährleistet. Dabei befindet sich die elastische Außenwand unmittelbar vor dem Dosierorgan. Dort befindet sich auch der geringste Querschnitt im Zwischenbehälter, wo die Gefahr der Brückenbildung am höchsten ist.As a rule, the powder container has the powder container in Vibratory means, e.g. a vibrator or one Drive for opening and closing the outflow opening on and usually the dosing organ also causes Vibrations that are transferred to the intermediate container. These vibrations cause movements in the elastic Container wall, so that baking due to these movements of the powder on the inner wall of the container is prevented. On there is constant flow of powder in the direction of the outlet thus guaranteed. There is the elastic Outer wall immediately in front of the dosing device. There is even the smallest cross section in the intermediate container, where the Danger of bridging is highest.

Eine gleichmäßige Befüllung des Zwischenbehälters wird erfindungsgemäß dadurch erzielt, dass der Zwischenbehälter einen die Füllstandshöhe des Puders erfassenden Sensor aufweist. Sinkt der Füllstand unterhalb eines vorgegebenen Wertes ab, dann wird dem Puderbehälter Puder entnommen und der Zwischenbehälter aufgefüllt. Dabei kann die Hysterese zwischen dem Sensorsignal und der Befüllung beliebig gewählt werden. Vorteilhaft wird der Zwischenbehälter immer dann nachgefüllt, wenn etwa 10% des ihn im bevorrateten Pudervolumens entnommen worden ist.Even filling of the intermediate container is ensured achieved according to the invention in that the intermediate container a sensor that detects the fill level of the powder having. If the fill level drops below a specified level Value, then powder is removed from the powder container and the Intermediate tank filled up. The hysteresis can be between the sensor signal and the filling can be chosen arbitrarily. The intermediate container is advantageously always refilled when about 10% of the powder volume has been removed has been.

Gemäß einer bevorzugten Ausführungsform ist der Sensor ein optischer Sensor, ein induktiver Sensor oder ein kapazitiver Sensor. Bei einem optischen Sensor kann dieser z.B. als Lichtschranke mit sichtbarem oder Infrarotlicht ausgebildet sein.According to a preferred embodiment, the sensor is on optical sensor, an inductive sensor or a capacitive Sensor. With an optical sensor, this can e.g. as Photoelectric switch designed with visible or infrared light his.

Ein weiterer Vorteil wird darin gesehen, dass der Zwischenbehälter als offenes System ausgebildet ist. Dadurch erweist sich die Entnahme des Puderbehälters als relativ unproblematisch, da keinerlei vorkehrungen für Abdichtungen bzw. Luftabschlüsse getroffen werden müssen. Außerdem können derartige offene Systeme preiswerter hergestellt werden, als Systeme, die mit Druckluft beaufschlagt werden.Another advantage is seen in the fact that the Intermediate container is designed as an open system. Thereby the removal of the powder container proves to be relative unproblematic as there are no precautions for seals or air exclusions must be taken. You can also such open systems are manufactured cheaper than Systems to which compressed air is applied.

Um ein Absetzen des Puders im Zwischenbehälter bzw. ein Beruhigen des Puders im Zwischenbehälter problemlos zu ermöglichen, herrscht im Zwischenbehälter Umgebungsdruck.To set the powder in the intermediate container or a Soothe the powder in the intermediate container without any problems allow, there is ambient pressure in the intermediate container.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. Further advantages, features and details of the invention result from the subclaims and the following Description in the with reference to the drawing particularly preferred embodiment in detail is described.

Die Zeichnung zeigt einen unteren Abschnitt eines Puderbehälters 1, der in einer Behälteraufnahme 2 mittels eines Schnellspannsystems 3 befestigt ist. Die Behälteraufnahme 2 schwingt senkrecht zur Zeichenebene. Der Puderbehälter 1 weist an seinem unteren Ende 4 eine Ausströmöffnung 5 für den im Puderbehälter 1 bevorrateten Puder auf. Diese Ausströmöffnung 5 mündet in einen insgesamt mit 6 bezeichneten Zwischenbehälter, der seinerseits in ein insgesamt mit 7 bezeichnetes Dosierorgan einmündet. Dieses Dosierorgan 7 ist elastisch über dessen Antrieb gelagert. Zwischen der Unterseite der Behälteraufnahme 2 und der Oberseite des Zwischenbehälters 6 befindet sich ein Spalt 8, über den der Innenraum des Zwischenbehälters 6 mit der Umgebung in Verbindung steht. Im Zwischenbehälter 6 herrscht somit Umgebungsdruck. Das untere Ende 4 des Puderbehälters 1 ragt relativ weit in den Zwischenbehälter 6 ein, wodurch gewährleistet wird, dass aus dem Spalt 8 kein oder nur vernachlässigbar wenig Puder austritt. Der Spalt 8 hat außerdem den Vorteil, dass der Zwischenbehälter 6 von der Behälteraufnahme 2 abgekoppelt ist und somit auch von den Schwingbewegungen des Puderbehälters 1.The drawing shows a lower section of a Powder container 1, which means in a container receptacle 2 a quick release system 3 is attached. The Container holder 2 swings perpendicular to the plane of the drawing. The Powder container 1 has at its lower end 4 Outflow opening 5 for the one stored in the powder container 1 Powder on. This outflow opening 5 opens into an overall designated 6 intermediate container, which in turn in a total of 7 dosing organ opens. This Dosing member 7 is elastically supported by its drive. Between the bottom of the container holder 2 and the There is a gap 8 at the top of the intermediate container 6, through which the interior of the intermediate container 6 with the Environment is connected. There is in the intermediate container 6 thus ambient pressure. The lower end 4 of the powder container 1 protrudes relatively far into the intermediate container 6, whereby it is ensured that no or only from the gap 8 negligible powder leaks. The gap 8 has also the advantage that the intermediate container 6 of the Container receptacle 2 is decoupled and thus also from the Swinging movements of the powder container 1.

Der dem Puderbehälter 1 zugewandte Abschnitt 9 des Zwischenbehälters 6 besitzt einen oberen zylinderförmigen Mantelabschnitt 10 und einen unteren zylindermantelförmigen Abschnitt 11, der einen geringeren Durchmesser als der Mantelabschnitt 10 aufweist. Die beiden Mantelabschnitte 10 und 11 werden über einen kegelstumpfförmigen Mantelabschnitt 12 miteinander verbunden. Auf das freie Ende des unteren Mantelabschnitts 11 ist ein oberer zylinderförmiger Mantelabschnitt 14 eines unteren Abschnittes 13, aufgeschoben. An diesen Mantelabschnitt 14 schließt sich ebenfalls ein kegelstumpfförmiger Mantelabschnitt 15 an, der in einen zylinderförmigen unteren Mantelabschnitt 16 ausläuft. Dieser untere Mantelabschnitt 16 ist an das Dosierorgan 7 angeschlossen.The section 9 of the powder container facing Intermediate container 6 has an upper cylindrical Jacket section 10 and a lower cylindrical jacket Section 11, which has a smaller diameter than that Has jacket section 10. The two jacket sections 10 and 11 are over a truncated cone shaped section 12 connected to each other. At the free end of the bottom Jacket section 11 is an upper cylindrical one Shell section 14 of a lower section 13, pushed. This jacket section 14 also includes frustoconical shell portion 15, which in a cylindrical lower jacket section 16 runs out. This lower jacket section 16 is on the dosing member 7 connected.

Der Abschnitt 13 des Zwischenbehälters 6 besteht aus einem elastischen Material, z.B. Kunststoff oder Gummi, wohingegen der Abschnitt 9 aus einem starren Material, z.B. Aluminium besteht. Aufgrund der An- und Abschaltung des Dosierorgans 7, insbesondere des Antriebes des Dosierorgans 7 werden Vibrationen in den Abschnitt 13 eingeleitet. Diese Vibrationen bzw. Bewegungen verursachen eine Verformung der elastischen Wand des Abschnitts 13, wodurch der im Zwischenbehälter 6 sich befindende Puder aufgelockert wird oder zumindest Anbackungen, Säulen- und Brückenbildungen verhindert werden. Ein Abfließen bzw. Abströmen des Puders in Richtung der unteren Auslassöffnung ist somit gewährleistet. The section 13 of the intermediate container 6 consists of a elastic material, e.g. Plastic or rubber, whereas section 9 made of a rigid material, e.g. aluminum consists. Because the metering element 7 is switched on and off, in particular the drive of the metering element 7 Vibrations initiated in section 13. These vibrations or movements cause deformation of the elastic Wall of section 13, whereby the in the intermediate container 6 powder is loosened or at least caking, Columns and bridges are prevented. An outflow or outflow of the powder in the direction of the lower Outlet opening is thus guaranteed.

Aus der Zeichnung ergibt sich außerdem, dass im Materialabschnitt 11 ein Sensor 17, insbesondere eine Lichtschranke 18 vorgesehen ist, mit der die Füllstandshöhe im Zwischenbehälter 6 ermittelt wird. Bei Unterschreiten eines vorgegebenen Grenzwertes wird über den Sensor 17 ein (nicht dargestellter) Antrieb aktiviert, der in Richtung des Pfeils 19 auf eine Wippe 20 einwirkt, die um eine Achse 21 drehbar gelagert ist. Dadurch wird ein Verschlussorgan 22 von der Ausströmöffnung 5 abgehoben und es kann Puder aus dem Puderbehälter 1 in den Zwischenbehälter 6 nachfließen. Innerhalb des kegelstumpfförmigen Mantelabschnitts 15 wird der von Luft durchsetzte Puder beruhigt und es wird eine einheitliche Schüttdichte geschaffen. Auf diese Weise wird der Austrag über das Dosierorgan 7 vergleichmäßigt.The drawing also shows that in Material section 11 a sensor 17, in particular a Light barrier 18 is provided with which the fill level in Intermediate container 6 is determined. When falling below one predetermined limit value is a (not Actuator shown activated in the direction of the arrow 19 acts on a rocker 20 which is rotatable about an axis 21 is stored. As a result, a closure member 22 of the Outflow opening 5 is lifted and powder can be removed from the Pour the powder container 1 into the intermediate container 6. Within the frustoconical shell section 15 is the air permeated powder soothes and it becomes a uniform bulk density created. In this way the Discharge via the metering element 7 is evened out.

Außerdem wird der Füllstand während des Betriebes permanent auf gleicher Höhe gehalten, so dass die Füllstandshöhe im Zwischenbehälter keinen Einfluss auf die Dosierung nimmt. Die Höhe des Füllstandes im Puderbehälter und die Schüttdichte des Puders im Puderbehälter nehmen keinen Einfluss auf die Dosierung, da der Puderbehälter vollständig vom Dosiervorgang abgekoppelt ist. Zwischen dem Puderbehälter und dem Dosierorgan befindet sich nämlich der Zwischenbehälter.In addition, the level becomes permanent during operation kept at the same level so that the fill level in The intermediate container has no influence on the dosage. The The level of the powder container and the bulk density of the Powders in the powder container have no influence on the Dosing as the powder container is completely from the dosing process is uncoupled. Between the powder container and the The metering device is namely the intermediate container.

Claims (9)

  1. Powder device to powder coated printed sheets, with a powder container (1), in which powder is stored and from which powder is taken, and with a metering mechanism (7), by means of which a specific quantity of powder is dispensed into a current of air, wherein the powder container (1) exits via a discharge opening (5) into an intermediate container (6) and the intermediate container (6) is located between the powder container (1) and the metering mechanism (7), wherein the powder container (1), the intermediate container (6) and the metering mechanism (7) are positioned vertically and sequentially one above the other, and the powder is transferred from one element to another downwards, characterized in that the discharge opening (5) is closable via a closing mechanism (22) mounted at the powder container (1) and that the closing mechanism (22) can be lifted downwards and away from the powder container (1).
  2. Powder container according to claim 1, characterized in that the intermediate container (6) is basically funnel shaped.
  3. Powder device according to one of the preceding claims, characterized in that the intermediate container (6) has an elastic wall (13), at least partially.
  4. Powder device according to claim 3, characterized in that the elastic wall (3) is located immediately ahead of the metering mechanism (7).
  5. Powder device according to one of the preceding claims, characterized in that the intermediate container (6) has a sensor (17) which detects the fill level of the powder.
  6. Powder device according to claim 6, characterized in that the sensor (17) is an optical sensor, in particular a light barrier (18), an inductive or a capacitive sensor.
  7. Powder device according to one of the preceding claims, characterized in that the intermediate container (6) is designed as an open system.
  8. Powder device according to one of the preceding claims, characterized in that atmospheric pressure obtains in the intermediate container (6).
  9. Powder device according to one of the preceding claims, characterized in that the powder container (1) is designed as a replacement container and can be removed from the powder device.
EP99934606A 1998-08-10 1999-07-07 Powder device with a constant supply of powder Expired - Lifetime EP1115576B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19836021 1998-08-10
DE19836021A DE19836021A1 (en) 1998-08-10 1998-08-10 Powdering device
PCT/EP1999/004751 WO2000009335A1 (en) 1998-08-10 1999-07-07 Powder device with a constant supply of powder

Publications (2)

Publication Number Publication Date
EP1115576A1 EP1115576A1 (en) 2001-07-18
EP1115576B1 true EP1115576B1 (en) 2003-02-12

Family

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Application Number Title Priority Date Filing Date
EP99934606A Expired - Lifetime EP1115576B1 (en) 1998-08-10 1999-07-07 Powder device with a constant supply of powder

Country Status (5)

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US (1) US6299021B1 (en)
EP (1) EP1115576B1 (en)
JP (1) JP3627920B2 (en)
DE (3) DE19836021A1 (en)
WO (1) WO2000009335A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6571990B2 (en) * 2001-03-30 2003-06-03 Ctb Ip, Inc. Method and apparatus for adjustably directing granular material out of a container and reducing outlet pressure in the container
EP2152078B8 (en) 2007-04-27 2021-03-17 CyDex Pharmaceuticals, Inc. Formulations containing clopidogrel and sulfoalkyl ether cyclodextrin and methods of use
CN105394025B (en) * 2015-09-21 2018-08-21 江苏大学 A kind of degradable sphere automatic release device of unmanned plane

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091368A (en) * 1961-03-01 1963-05-28 Remington Arms Co Inc Powder measuring device
DE6605019U (en) * 1967-02-23 1970-03-26 Albin Platsch APPLIANCE FOR DUSTING POWDERED SUBSTANCES
DE1611317A1 (en) * 1967-07-22 1971-01-21 Polygraph Leipzig Powder sprayer
US3604981A (en) * 1969-12-19 1971-09-14 Nikka Kk Powder sprayer of high-tension discharge type
DE3811309C2 (en) * 1988-04-02 1997-09-04 Weitmann & Konrad Fa Powder atomizing device
DE3819203A1 (en) * 1988-06-06 1989-12-07 Klaschka Ind Elektronik DUSTING DEVICE
JPH0647285B2 (en) * 1988-09-14 1994-06-22 株式会社グラフィックアーツシステム Powder spray device to prevent ink back-off in printing machine
US5213271A (en) 1991-08-09 1993-05-25 Oxy-Dry Corporation Powder sprayer with pneumatic powder supply system
FR2683349B1 (en) 1991-10-31 1996-10-04 France Telecom BINARY RESISTANCE NETWORK AND ITS USE FOR LABELING RELATED COMPONENTS OF IMAGES SCANNED IN ARTIFICIAL VISION.
US5178333A (en) * 1991-12-06 1993-01-12 Larry Barber Air distribution apparatus for particulates
CA2130362C (en) * 1993-08-27 1998-11-03 Richard J. Duffy Powder spray apparatus for the manufacture of coated fasteners
DE19736448B4 (en) * 1997-08-21 2010-06-02 Mediprint Apparatebau Gmbh Apparatus and method for supplying powder

Also Published As

Publication number Publication date
WO2000009335A1 (en) 2000-02-24
DE29816739U1 (en) 1998-12-03
JP2002522276A (en) 2002-07-23
JP3627920B2 (en) 2005-03-09
DE59904291D1 (en) 2003-03-20
US6299021B1 (en) 2001-10-09
EP1115576A1 (en) 2001-07-18
DE19836021A1 (en) 2000-03-09

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