DE19941203A1 - Automatic powder feed center - Google Patents

Automatic powder feed center

Info

Publication number
DE19941203A1
DE19941203A1 DE1999141203 DE19941203A DE19941203A1 DE 19941203 A1 DE19941203 A1 DE 19941203A1 DE 1999141203 DE1999141203 DE 1999141203 DE 19941203 A DE19941203 A DE 19941203A DE 19941203 A1 DE19941203 A1 DE 19941203A1
Authority
DE
Germany
Prior art keywords
powder
cleaning
rod
roller
felt
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.)
Ceased
Application number
DE1999141203
Other languages
German (de)
Inventor
Erich Bauer
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.)
BAUER, ERICH, 78351 BODMAN-LUDWIGSHAFEN, DE
Original Assignee
R O T Recycling und Oberf GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by R O T Recycling und Oberf GmbH filed Critical R O T Recycling und Oberf GmbH
Priority to DE1999141203 priority Critical patent/DE19941203A1/en
Priority to AU65639/00A priority patent/AU6563900A/en
Priority to PCT/EP2000/006724 priority patent/WO2001015813A2/en
Priority to EP00953047A priority patent/EP1250193A2/en
Publication of DE19941203A1 publication Critical patent/DE19941203A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/144—Arrangements for supplying particulate material the means for supplying particulate material comprising moving mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1454—Arrangements for supplying particulate material comprising means for supplying collected oversprayed particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1472—Powder extracted from a powder container in a direction substantially opposite to gravity by a suction device dipped into the powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/16—Gas pressure systems operating with fluidisation of the materials
    • B65G53/18—Gas pressure systems operating with fluidisation of the materials through a porous wall
    • B65G53/22—Gas pressure systems operating with fluidisation of the materials through a porous wall the systems comprising a reservoir, e.g. a bunker

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

The invention relates to a device for removing an accumulation of powder from a container (38) and transferring said powder to a distributing device - especially a powder gun - in a powder hose or similar conveying line. According to the invention, at least one rod injector (22) which can be inserted into the container (38) is provided. Said rod injector has at least one powder inlet bore (50) at one end and is connected to the conveying line at the other end. At least one level detector (30) is allocated to the rod injector (22), as is a powder roller (16) which is located in a surrounding roller housing with a discharge unit that opens out towards the level detector. The powder roller (16) can be provided with plates projecting out from the same and oriented towards the wall of the roller housing (14). Said plates are preferably made from a material with limited elasticity and have a cross-section length that is greater than the inner diameter (d) of the roller housing (14). The plates rest resiliently against the roller housing at one end.

Description

Die Erfindung bezieht sich auf eine kompakte, automatische Pulverförderung- und reinigung aus dem Pulveroriginalgebinde mit unmittelbarer Pulverrückgewinnung über einen Zyklon.The invention relates to a compact, automatic powder feed and cleaning from the original powder container with immediate powder recovery over a cyclone.

Es gibt Pulverzentren, die nicht direkt an die Rückgewinnung angeschlossen sind (aufwendiges Gehäuse mit Absaugung) und keine vollautomatische Injektor­ reinigung haben.There are powder centers that are not directly connected to the recovery (complex housing with suction) and no fully automatic injector have cleaning.

Als Vorteile sind die Verarbeitung des Pulvers aus dem Originalgebinde in einem unterdrucklosen Gehäuse mit Zuführung aus der Pulverrückgewinnung und eine teilautomatische Reinigung der Injektoren, Pulverschläuche und Pistolen bei Farbwechsel.The advantages of processing the powder from the original container in one vacuum-free housing with feed from the powder recovery and a semi-automatic cleaning of the injectors, powder hoses and guns Color change.

Als Nachteile treten die hohen Kosten, der zusätzliche Platzbedarf und eine komplizierte Nachdosierung, eine Pfropfenförderung für die Pulverrückgewinnung sowie keine vollautomatische Abreinigung der Injektoren auf.The disadvantages are the high costs, the additional space requirement and a complicated replenishment, a stopper for powder recovery and no fully automatic cleaning of the injectors.

Gegenstand der Erfindung ist, ein automatisches Pulverförderzentrum so zu bauen daß:
The object of the invention is to build an automatic powder feed center in such a way that:

  • - kein zusätzlicher Platzbedarf notwendig ist.- no additional space is required.
  • - keine Pfropfenförderung über den Zyklon benötigt wird.- No plug conveying via the cyclone is required.
  • - die Füllstandsonde mit Rohr automatisch gereinigt wird.- The level probe with pipe is automatically cleaned.
  • - die Stabinjektoren außen und innen, der Pulverschlauch und die Pistolen impulsartig, automatisch gereinigt werden. Unmittelbar vor dieser Reinigung wird die Förder- und Dosierluft auf vollen Druck eingeschaltet, damit kein Rückschlageffekt eintritt.- The rod ejectors outside and inside, the powder hose and the guns impulsive, automatically cleaned. Immediately before this cleaning the conveying and dosing air is switched on at full pressure so that Kickback effect occurs.
  • - der Unterdruck vom Zyklon zum Pulvergebinde (Normalatmosphäre) durch die Pulverwalze getrennt wird.- The vacuum from the cyclone to the powder container (normal atmosphere) through the Powder roller is separated.
  • - eine einfache Pulverzudosierung angeschlossen werden kann.- A simple powder metering can be connected.

Bei dieser Neukonzeption sind die Baumaße so abgestimmt, daß alle Komponenten unter dem Zyklon montiert sind. Das über dem Zyklon zurückgewonnene Pulver wird mit der luftdichten Pulverwalze in der Beruhigungskammer unterdrucklos über die Siebmaschine in das Pulveroriginalgebinde transportiert. Die Pulverwalze hat für diesen Zweck federnde Lamellen aus Bronzeblech, die Unebenheiten im Walzen­ mechanismus abdichten und das Pulver bei der Freigabe auf die Siebmaschine ab­ federn. With this new concept, the dimensions are coordinated so that all components are mounted under the cyclone. The powder recovered over the cyclone becomes with the airtight powder roller in the calming chamber without pressure over the Screening machine transported into the original powder container. The powder roller has for this is the purpose of resilient slats made of bronze sheet, the unevenness in the rolling Seal the mechanism and the powder is released onto the screening machine feathers.  

Die Stabinjektoren und die Füllstandsonde werden schräg zwischen der Sieb­ maschine und dem Pulveroriginalgebinde über ein Führungssystem mit auto­ matischer Abreinigung in das Pulvergebinde gefahren. Bei Pulverwechsel werden die Stabinjektoren inkl. Füllstandsonde nach oben gefahren, vor Einschalten der Impulsreinigung wird die Förder- und Dosierluft für alle Pistolen als Rückschlagventil eingeschaltet. Beim Ausfahren werden im Führungsbereich die Stabinjektoren und die Füllstandsonde mit einem Filzstreifen oder ähnlichem außen vom Restpulver abgereinigt. Bei diesem Vorgang werden die Filzeinlagen, die die Stabinjektoren und Füllstandsonde außen reinigen, ebenfalls gereinigt. Das Pulvergebinde wird ausge­ tauscht und es kann mit der neuen Farbe weitergearbeitet werden.The rod ejectors and the level probe are placed at an angle between the sieve machine and the powder original container via a guide system with auto matically cleaned into the powder container. When changing powder, the Rod ejectors incl. Level probe moved up before switching on the The delivery and metering air for all guns is used as a non-return valve for pulse cleaning switched on. When extending, the rod ejectors and the level probe with a felt strip or similar on the outside of the residual powder cleaned. In this process, the felt inserts, the rod ejectors and Clean outside fill level probe, also cleaned. The powder container is removed swaps and you can continue working with the new color.

Fig. 1 zeigt das kpl. Pulverförderzentrum aufgebaut unter dem Pulverzyklon in Funktionsstellung. Fig. 1 shows the cpl. Powder feed center set up under the powder cyclone in the functional position.

Fig. 2 zeigt die Pulverwalze mit Lamellenblechen und deren Wirkungsweise. Fig. 2 shows the powder roller with lamella sheets and their mode of operation.

Fig. 3 zeigt die Stabinjektorführung mit Stabinjektor und Niveausonde in Reinigungs­ stellung. Fig. 3 shows the rod injector guide with rod injector and level probe in the cleaning position.

Fig. 1 zeigt den Anbau der Beruhigungskammer 1 unter dem Zyklon 2 mit der Pulver­ walze 3, die Stabinjektoraufnahmeplatte 4, die Stabinjektoren 5, den Hubzylinder 6, die Siebmaschine 7, den Pulverwagen 8, das Pulveroriginalgebinde 9, Plastik­ sack 10. Fig. 1 shows the cultivation of the calming chamber 1 under the cyclone 2 with the powder roller 3 , the rod injector mounting plate 4 , the rod injectors 5 , the lifting cylinder 6 , the screening machine 7 , the powder trolley 8 , the powder original container 9 , plastic sack 10 .

Fig. 2 zeigt die Pulverwalze 3 in Funktion mit den Lamellen 11, die in der Breite länger sind als der Durchmesser und damit eine Federwirkung und gleichzeitig die Dichtung in Längsrichtung erzeugen. Fig. 2 shows the powder roller 3 in function with the fins 11 , which are longer in width than the diameter and thus produce a spring effect and at the same time the seal in the longitudinal direction.

Fig. 3 zeigt die Führung und Reinigung der Stabinjektoren 5 und der Füllstand­ sonde 12. Im Reinigungsblock 13 befinden sich die austauschbaren Reinigungs­ buchsen 14 für die Stabinjektoren 5 und die Buchse 15 für die Füllstandsonde 12. Über die Bohrung 16 wird während der Reinigung impulsartig Druckluft in den Ring­ spalt 17 geblasen, die dann über die Pulveransaugbohrungen 18 des Stabinjektors 5 das Restpulver über den Pulverschlauch und die Pistole in die Kabine abführt. Bei diesem Vorgang wird das abgestreifte Pulver des Filzrings 19, das beim Hochziehen die Außenrohre der Stabinjektoren 5 und der Füllstandsonde 12 reinigt, ebenfalls mit ausgeblasen. Die Reinigungsluft von der Füllstandsonde 12 wird über eine der nächstliegenden Führungsbuchse 14 eines Stabinjektors 5 abgeleitet. Unmittelbar vor Einschalten der Abreinigung wird die Förder- und Dosierluft mit vollem Druck freigegeben, damit während der Impulsreinigung keine verstaubte Luft in das System zurückfließen kann (Rückschlagventil). Fig. 3 shows the management and cleaning of the rod ejectors 5 and the level probe 12th In the cleaning block 13 there are the replaceable cleaning bushings 14 for the rod ejectors 5 and the bushing 15 for the level probe 12 . Compressed air is blown into the ring gap 17 via the bore 16 during cleaning, which then discharges the residual powder via the powder hose and the gun into the cabin via the powder suction bores 18 of the rod ejector 5 . In this process, the stripped powder of the felt ring 19 , which cleans the outer tubes of the rod ejectors 5 and the fill level probe 12 , is also blown out. The cleaning air from the level probe 12 is discharged via one of the closest guide bushes 14 of a rod injector 5 . Immediately before switching on the cleaning, the conveying and dosing air is released at full pressure, so that no dusty air can flow back into the system during the pulse cleaning (check valve).

Claims (12)

1. Pulverwalze 3 mit Lamellen 11 aus Bronzeblech im Durchmesser größer als das Rohr in der Beruhigungskammer 1.1. Powder roller 3 with fins 11 made of bronze sheet with a diameter larger than the tube in the calming chamber 1 . 2. Pulverwalze 3 gemäß Anspruch 1 dadurch gekennzeichnet, daß die Lamellen 11 aus Bronzeblech oder ähnlichen Materialien federnd abdichten und bei der schnappenden Entspannung das Pulver abwerfen.2. Powder roller 3 according to claim 1, characterized in that the slats 11 made of bronze sheet or similar materials resiliently and throw off the powder during the snap relaxation. 3. Reinigungsblock 13 mit Reinigungsbuchsen 14 und 15 dadurch gekenn­ zeichnet, daß beim Reinigungsvorgang das Pulver außen am Rohr des Stab­ injektors 5 und der Füllstandsonde 12 mit dem Filzring 19 bei der Aufwärts­ bewegung abgestreift wird.3. Cleaning block 13 with cleaning bushings 14 and 15 characterized in that the powder is stripped on the outside of the tube of the rod injector 5 and the level probe 12 with the felt ring 19 during the upward movement during the cleaning process. 4. Reinigungsblock 13 gemäß Anspruch 3 dadurch gekennzeichnet, daß in der Reinigungsstellung (obere Endstellung) impulsartig Druckluft durch die Bohrung 16 in den Ringspalt 17 eintritt und dabei das Restpulver über die Pulveransaugbohrungen 18 des Stabinjektors 5, den Pulverschlauch und die Pistole in die Kabine bläst.4. Cleaning block 13 according to claim 3, characterized in that in the cleaning position (upper end position) pulsed compressed air enters through the bore 16 in the annular gap 17 and thereby blows the residual powder through the powder suction holes 18 of the rod injector 5 , the powder hose and the gun into the cabin . 5. Reinigungsblock 13 gemäß Anspruch 3 und 4 dadurch gekennzeichnet, daß bei der Restpulverausblasung das abgestreifte Pulver am Filzring 19 ebenfalls über die Pulveransaugbohrungen 18 abfließt.5. Cleaning block 13 according to claim 3 and 4, characterized in that the stripped powder on the felt ring 19 also flows through the powder suction holes 18 in the residual powder blowout. 6. Reinigungsblock 13 gemäß Anspruch 3, 4 und 5 dadurch gekennzeichnet, daß die Buchse 15 für die Füllstandsonde die Reinigungsluft vom Filzstreifen 19 über den Ringspalt 17 in den Ringspalt 17 des nächstliegenden Stabinjektors 5 in die Kabine abgibt.6. Cleaning block 13 according to claim 3, 4 and 5, characterized in that the socket 15 for the level probe emits the cleaning air from the felt strip 19 through the annular gap 17 into the annular gap 17 of the nearest rod ejector 5 in the cabin. 7. Unmittelbar vor der Reinigung mit Druckluft wird in allen Stabinjektoren 5 die Förder- und Dosierluft mit Netzdruck beaufschlagt, damit keine Pulverreste während der Reinigung in das Druckluftsystem zurückfließen (Rückschlag­ ventil).7. Immediately before cleaning with compressed air, the conveying and dosing air is pressurized with network pressure in all rod injectors 5 , so that no powder residues flow back into the compressed air system during cleaning (check valve). 8. Reinigungsblock 13 gemäß Anspruch 3 und 5 dadurch gekennzeichnet, daß statt des Filzrings 19 andere Materialen oder Reinigungsmittel eingesetzt werden können.8. Cleaning block 13 according to claim 3 and 5, characterized in that 19 other materials or cleaning agents can be used instead of the felt ring. 9. Reinigungsblock 13 gemäß Anspruch 8 dadurch gekennzeichnet, daß keine Reinigungsmittel oder Filzringe 19 eingesetzt werden, sondern dauernder Luft­ strom während des Ausfahrens nach oben und somit eine reine Luftreinigung der Außenrohre erfolgt.9. cleaning block 13 according to claim 8, characterized in that no cleaning agents or felt rings 19 are used, but continuous air flow during the extension upwards and thus a pure air cleaning of the outer tubes takes place. 10. Die Reinigung gemäß Anspruch 3 bis 9 gilt für alle Ansaugrohre und Injektoren anderer Bauart.10. The cleaning according to claim 3 to 9 applies to all intake pipes and injectors other design. 11. Die Außenrohrreinigung mit einem Abstreifen, der statt des O-Rings 20 ange­ bracht ist und dann ggf. von unter abgeblasen wird.11. The outer tube cleaning with a wiping, which is placed instead of the O-ring 20 and then possibly blown off from below. 12. Die Ansprüche 1 bis 11 gelten auch für andere Bauarten von Pulverzentren.12. Claims 1 to 11 also apply to other types of powder centers.
DE1999141203 1999-08-30 1999-08-30 Automatic powder feed center Ceased DE19941203A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE1999141203 DE19941203A1 (en) 1999-08-30 1999-08-30 Automatic powder feed center
AU65639/00A AU6563900A (en) 1999-08-30 2000-07-14 Device for removing and transferring an accumulation of powder and method for cleaning said device
PCT/EP2000/006724 WO2001015813A2 (en) 1999-08-30 2000-07-14 Device for removing and transferring an accumulation of powder and method for cleaning said device
EP00953047A EP1250193A2 (en) 1999-08-30 2000-07-14 Device for removing and transferring an accumulation of powder and method for cleaning said device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999141203 DE19941203A1 (en) 1999-08-30 1999-08-30 Automatic powder feed center

Publications (1)

Publication Number Publication Date
DE19941203A1 true DE19941203A1 (en) 2001-03-01

Family

ID=7920142

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999141203 Ceased DE19941203A1 (en) 1999-08-30 1999-08-30 Automatic powder feed center

Country Status (4)

Country Link
EP (1) EP1250193A2 (en)
AU (1) AU6563900A (en)
DE (1) DE19941203A1 (en)
WO (1) WO2001015813A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10349715B4 (en) * 2003-10-23 2006-05-04 Eisenmann Maschinenbau Gmbh & Co. Kg Powder source for a powder coating machine
DE102010039473B4 (en) * 2010-08-18 2014-11-20 Gema Switzerland Gmbh Powder supply device for a powder coating system
DE102012210439B4 (en) 2012-06-20 2019-03-14 Gema Switzerland Gmbh Apparatus for conveying coating powder from a powder container and method for cleaning a powder conveying apparatus
GB2566452A (en) * 2017-09-12 2019-03-20 Carlisle Fluid Tech Inc Colour change system for powder coating

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369878A1 (en) * 1976-11-03 1978-06-02 Air Ind Machine for electrostatic powder coating - has all equipment in removable base unit for ease of cleaning and rapid colour changeover
DE2813854A1 (en) * 1978-03-31 1979-10-11 Interesco Int Res DEVICE FOR RECOVERING POWDER, IN PARTICULAR FROM POWDER SPRAYING CABINS
DE2839540A1 (en) * 1978-09-12 1980-03-20 Hans J Schaad powder coating chamber powder recovery system - has bottom of chamber formed as entry to cyclone separator with suction tube
DE3340510C2 (en) * 1983-11-09 1986-10-30 Hans-Josef 5010 Bergheim Licher Electrostatic powder coating device
DE4134701C2 (en) * 1991-10-21 1996-06-05 Gema Volstatic Ag Powder spray coating device with alternatively exchangeable filter and cyclone units
DE4239496A1 (en) * 1992-11-25 1994-05-26 Gema Volstatic Ag St Gallen Electrostatic powder spray coating appts. - uses powder delivery container as powder supply and recovers excess sprayed powder
DE19517229A1 (en) * 1995-05-11 1996-11-14 Gema Volstatic Ag Powder spray coating by suction through self-supporting cover
DE19817243A1 (en) * 1998-04-18 1998-11-12 R O T Gmbh Powder supply centre handling original packing

Also Published As

Publication number Publication date
AU6563900A (en) 2001-03-26
EP1250193A2 (en) 2002-10-23
WO2001015813A9 (en) 2002-11-07
WO2001015813A3 (en) 2002-08-08
WO2001015813A2 (en) 2001-03-08

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: BAUER, ERICH, 78351 BODMAN-LUDWIGSHAFEN, DE

8110 Request for examination paragraph 44
8131 Rejection