EP1967281A1 - Pump chamber hose and pumping device - Google Patents
Pump chamber hose and pumping device Download PDFInfo
- Publication number
- EP1967281A1 EP1967281A1 EP20070405070 EP07405070A EP1967281A1 EP 1967281 A1 EP1967281 A1 EP 1967281A1 EP 20070405070 EP20070405070 EP 20070405070 EP 07405070 A EP07405070 A EP 07405070A EP 1967281 A1 EP1967281 A1 EP 1967281A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inlet
- delivery chamber
- delivery
- hose
- outlet
- 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.)
- Granted
Links
- 238000005086 pumping Methods 0.000 title 1
- 239000000843 powder Substances 0.000 claims description 34
- 239000012530 fluid Substances 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 3
- 230000032258 transport Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 210000002445 nipple Anatomy 0.000 description 6
- 229940098458 powder spray Drugs 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
Images
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
- B05B7/1459—Arrangements for supplying particulate material comprising a chamber, inlet and outlet valves upstream and downstream the chamber and means for alternately sucking particulate material into and removing particulate material from the chamber through the valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
Definitions
- the invention relates to a delivery chamber hose for a device for conveying fluid and a device for conveying fluid with the delivery chamber hose.
- the fluid may be, for example, coating powder.
- the coating powder or powder for a short time from a powder reservoir by means of a powder delivery device is transported to a powder spray gun and sprayed there with the powder spray gun on the workpiece.
- the powder coating powder can also be transported from the powder reservoir in a metering and from there with several individual pumps to the powder spray guns.
- a device for conveying coating powder and a method for conveying powder with the conveyor device are known.
- the conveying device has an inlet valve, an outlet valve and a delivery chamber formed from an elastic delivery chamber tube.
- the powder conveying chamber is arranged between the inlet valve and the outlet valve and has a conveying air inlet.
- the volume of the powder delivery chamber is variable by a deformation of the delivery hose.
- An object of the invention is to provide a delivery chamber hose for a device for conveying fluid, wherein it is ensured that the fluid located in the delivery chamber hose is completely transportable out of the delivery chamber hose. With the help of the delivery chamber hose the material transport should be optimized.
- Another object is to provide a device for conveying fluid with the delivery chamber tube, which also ensures that the fluid in the delivery chamber tube is completely transported out.
- a delivery chamber hose for a device for conveying fluid having the features according to claim 1.
- the delivery chamber hose according to the invention for a device for conveying fluid is elastic, has an inlet and an outlet and in the region of the inlet the smallest resistance.
- the device according to the invention for conveying fluid comprises a delivery chamber tube which is elastically formed, which has an inlet and an outlet, and which has the smallest resistance in the region of the inlet.
- the device comprises an inlet valve and an outlet valve, wherein the inlet valve and the outlet valve are controllable.
- the delivery chamber tube forms a delivery chamber, which is arranged between the inlet valve and the outlet valve, which has a delivery air inlet, and whose volume is variable by a deformation of the delivery chamber tube.
- the tube has a taper in the region of the inlet. This is advantageously easy to produce.
- one or more further tapers are provided in the region of the inlet. This ensures that the delivery chamber hose rests in the relaxed state on the inside of the housing in a defined position. As a result, therefore, the delivery chamber of the delivery chamber tube each time when the delivery chamber tube returns to the relaxed state, the original volume again.
- a recess is provided in the hose, which is smaller from the inlet to the outlet.
- the delivery chamber tube rests in the relaxed state on the inside of the housing in a defined position.
- the delivery chamber of the delivery chamber tube thus has the original volume each time the delivery tube returns to the relaxed state.
- the thickness of at least one of the layers increases from the inlet to the outlet. This supports the complete emptying or pushing out of the powder from the delivery chamber hose.
- the wall thickness in the delivery chamber hose according to the invention increases from the inlet to the outlet.
- the delivery chamber tube according to the invention may also have a reinforcement.
- the reinforcement is preferably arranged in the middle region and in the region of the outlet.
- the cross section of the delivery chamber tube may also be oval.
- the inner diameter of the delivery chamber tube can decrease from the inlet to the outlet.
- a further delivery chamber formed from a further delivery chamber tube can be provided, which is arranged between a further inlet valve and a further outlet valve.
- the delivery chamber has a delivery air inlet and its volume is variable by a deformation of the further delivery chamber tube.
- the outlet valves are connected together on the output side.
- the inlets of the two inlet valves can also be connected to each other.
- FIG. 1 a three-dimensional view of a possible embodiment of the device according to the invention for conveying fluid.
- FIG. 2 is this embodiment the conveyor shown in an exploded view.
- the conveying device which is also referred to as a pump
- fluid for example powdered coating material for coating workpieces
- the conveyor device is connected on the input side via a hose nipple 14 with a suction line to suck powder from a powder reservoir.
- the conveyor is connected via a hose nipple 10 with a transport line to transport the powder to a dosing or a powder spray gun.
- the powder reservoir, the suction line, the transport line and the dosing or the powder spray gun are in the Figures 1 and 2 Not shown. If the conveying device according to the invention conveys the powder from the powder storage container to the metering container, further pumps are normally provided in order subsequently to transport the powder from the metering container to the individual powder spray guns.
- the in the Figures 1 and 2 shown embodiment of the conveying device has two independently operable conveyor units. Both conveyor units are arranged side by side in parallel.
- the first conveying unit comprises a conveying chamber hose 2 arranged in a housing 1.1 (see FIG FIG. 2 ).
- the housing 1.1 has a housing cover 1.5 on the input side and a housing cover 1.3 on the output side.
- the two housing covers 1.5 and 1.3 have a preferably oval opening into which the delivery hose 2 protrudes.
- the second conveyor unit is identical to the first conveyor unit. It comprises a housing 1.2, in which a further delivery chamber hose 3 is arranged.
- the housing 1.2 has a housing cover 1.6 on the input side and a housing cover 1.4 on the output side.
- the two tubes 2 and 3 are fixed on the input side.
- On the outlet side of the two conveyor units is another flange 4, with which the two tubes 2 and 3 are fixed on the outlet side.
- the two flanges 4 and 11 are screwed by screws 5 with the housing covers 1.3, 1.4 or 1.5 and 1.6.
- the arranged on the inlet side of the two conveyor units flange 11 has a conveying air connection 19 for the first conveyor unit and a conveying air connection 20 for the second conveyor unit.
- the two conveying air connections 19 and 20 can each be equipped with a check valve.
- a Y-piece 13 is arranged between the hose nipple 14, with which the leading to the powder reservoir tubing is connectable, and the flange 11, a Y-piece 13 is arranged. With the aid of the Y-piece, the powder, which is sucked out of the powder storage container via the suction line, is evenly distributed to the two downstream delivery units.
- Each of the two conveyor units each has an inlet valve.
- the inlet valve for the first delivery unit can be controlled via a control connection 21.
- the second delivery unit also has on the input side an inlet valve which can be controlled via a control connection 22.
- the two inlet valves are housed in a common housing 12.
- the first delivery unit On the output side, the first delivery unit has an outlet valve, which can be controlled via a control connection 23.
- the second delivery unit also has an outlet valve on the output side, which can be controlled via a control connection 24. Both exhaust valves are housed in a common housing 6.
- Both the two intake valves and the two exhaust valves are in the in Figures 1 and 2 shown embodiment designed as hose valves.
- FIG. 2 In the exploded view in FIG. 2 is to illustrate the exhaust valve, the valve tube 7 once in the inserted state and once shown in the removed state. If the exhaust valve is acted upon by the control line 24 with compressed air, the valve tube 7 is compressed. With the aid of compressed air DL, the cross-section of the valve tube can be reduced so far that no fluid can flow through the valve. The same applies mutatis mutandis to the other exhaust valve and the two intake valves.
- the outlets of the two exhaust valves are merged and open into a common powder outlet, which is connectable via the hose nipple 10 with the transport line.
- the Y-piece 8 and the two exhaust valves are fastened to the flange 4 with a plurality of screws 9.
- the Y-piece 13 and the two inlet valves are fastened to the flange 11 with a plurality of screws.
- the housing 1.1 has a compressed air connection 15, via which compressed air DL flow into the interior of the housing can.
- the compressed air DL causes the compressed air chamber, which is located between the inside of the housing and the delivery chamber 2, expands and thus the delivery chamber 2 hose is compressed. This in turn causes the volume in the delivery chamber tube 2 decreases.
- a negative pressure can be generated in the housing 1.1 by drawing air from the compressed air chamber.
- the negative pressure Vak ensures that the delivery chamber hose 2 is repeatedly brought into the same defined starting position.
- it can be achieved with the help of the negative pressure Vak that compressed by the compressed air DL delivery hose 2 expands faster again.
- a compressed air connection 17 is provided on the housing 1.2 in order to allow compressed air to flow into the housing 1.2.
- the housing 1.2 has a connection 18 which can be connected to a vacuum source.
- the conveyor works as follows. First, the inlet valve of the first delivery unit is closed and the outlet valve of the first delivery unit is opened. Then the delivery chamber hose 2 of the first delivery unit is compressed by means of compressed air DL, so that the volume in the delivery chamber 40.1 is reduced. Subsequently, first the outlet valve of the first delivery unit is closed and then the inlet valve of the first delivery unit is opened and it is ensured that the delivery chamber hose 2 can expand again. In this way, powder is sucked into the delivery chamber 40.1. Then the inlet valve of the first conveyor unit is closed again and the outlet valve of the first conveyor unit is opened. Will now via the port 19 conveying air blown into the delivery chamber 40.1 of the delivery hose 2, the powder is conveyed out of the delivery chamber 40.1.
- the second conveyor unit works on the same principle.
- the two conveyor units are operated so that while the one feed unit sucks powder from the powder reservoir, the other conveyor unit transports the powder in the direction of Pulversprühpistole. So while one delivery hose is compressed, the other delivery hose expands.
- the two housing parts 1.1 and 1.2 may be tubes with a square or rectangular cross-section.
- the openings in the housing covers 1.3, 1.4, 1.5 and 1.6 can, as in FIG. 2 shown to be oval. This ensures that the delivery hose is compressed evenly in a plane parallel and again the same deformation of the delivery hose occurs at each working cycle.
- FIG. 3 is a first possible embodiment of the delivery chamber tube, which is also referred to as a delivery hose, shown in a three-dimensional view.
- the jacket 34 of the delivery chamber tube has a taper 33. If the delivery chamber hose is pressurized with compressed air, first the part of the delivery chamber hose is compressed at which the resistance of the delivery hose is the smallest. At the in FIGS. 3 and 4 In the embodiment shown, this is the region 33 in which the taper is located. Only then is the remaining part of the delivery hose pressed together. In this way, it is thus achieved that the delivery hose is always compressed first on the inlet side 31 and only then in the middle and on the outlet side 32.
- this ensures that the powder or fluid present in the delivery hose 2 is transported out of the delivery hose first in the region of the inlet 31, then in the middle region and then in the region of the outlet 32. If, on the other hand, the conveying hose were compressed first in the middle and then at the inlet 31, this could lead to the powder not being transported completely out of the conveying hose. In addition, it might happen that the powder is pushed back to the inlet side 31.
- resistance is meant the mechanical resistance or the mechanical moment of resistance. The smaller the resistance of the material, the smaller the rigidity of the material.
- an arrow 30 may be applied to the conveying direction on the delivery hose.
- FIG. 5 a second embodiment of the delivery hose is shown in side view.
- the delivery hose according to FIG. 5 in the area of intake four tapers 35.1 to 35.4 on. This also ensures that the delivery hose in the region of the inlet 31 has the smallest resistance.
- FIG. 6 a third possible embodiment of the delivery hose is shown in side view.
- the reduction of the resistance in the region of the inlet 31 is achieved in that on the lateral surface 34 of the tube recesses 36.1 and 36.2 are arranged, which are largest in the region of the inlet 31 and in the region of the outlet 32 smallest.
- FIG. 7 a fourth embodiment of the delivery hose is shown in cross section.
- the delivery hose is constructed from two layers 34 and 37, the layer 37 having the smallest wall thickness in the region of the inlet 31 and the greatest wall thickness in the region of the outlet. This also ensures that the delivery hose in the region of the inlet 31 has a smaller resistance than in the region of the outlet 32.
- the layer 34 may have the greatest wall thickness in the region of the inlet 31 and the smallest wall thickness in the region of the outlet 32. If the material of the layer 34 has a smaller resistance than the material of the layer 37, an overall smaller resistance is again achieved in the region of the inlet 31 than in the region of the outlet 32.
- FIG. 8 a fifth embodiment of the delivery hose is shown in cross-section.
- reinforcements 38.1 and 38.2 are incorporated in the delivery hose in the middle region and in the end region. This also ensures that the delivery hose has a smaller resistance in the region of the inlet 31 than in the region of the outlet 32.
- reinforcements 38.1 and 38.2 can serve as wires or fibers. Instead, a serving as a reinforcing Mesh or mesh incorporated into the delivery hose or applied to the delivery hose.
- a sixth embodiment of the delivery hose is in FIG. 9 shown in cross section.
- the wall thickness x1 remains constant over the length of the delivery hose.
- the inner diameter d1 in the region of the inlet 31 is greater than the inner diameter d2 in the region of the outlet 32. This results in a delivery hose having a conically extending delivery chamber 40 and a reduced resistance in the region of the inlet 31.
- FIG. 10 a seventh embodiment of the delivery hose is shown in cross-section.
- the wall thickness x1 in the region of the inlet 31 is smaller than the wall thickness x2 in the region of the outlet 32.
- the inner diameter d1 of the delivery hose is constant. Due to the smaller wall thickness in the region of the inlet 31, it is achieved that the delivery hose has a smaller resistance in the region of the inlet 31 than in the region of the outlet 32 and thus is compressed first in the inlet region, then in the middle and finally in the outlet region.
- the conicity can in the in the FIGS. 9 and 10 shown embodiments, for example, at 0.5 °.
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- Air Transport Of Granular Materials (AREA)
Abstract
Description
Die Erfindung betrifft einen Förderkammerschlauch für eine Vorrichtung zum Fördern von Fluid sowie eine Vorrichtung zum Fördern von Fluid mit dem Förderkammerschlauch.The invention relates to a delivery chamber hose for a device for conveying fluid and a device for conveying fluid with the delivery chamber hose.
Das Fluid kann beispielsweise Beschichtungspulver sein. Um Gegenstände oder Werkstücke mit Beschichtungspulver zu beschichten, wird das Beschichtungspulver oder kurz Pulver aus einem Pulvervorratsbehälter mit Hilfe einer Pulverfördervorrichtung zu einer Pulversprühpistole transportiert und dort mit der Pulversprühpistole auf das Werkstück gesprüht. Statt dessen kann das Beschichtungspulver mit der Pulverfördervorrichtung auch vom Pulvervorratsbehälter in einen Dosierbehälter und von dort mit mehren einzelnen Pumpen zu den Pulversprühpistolen transportiert werden.The fluid may be, for example, coating powder. To coat objects or workpieces with coating powder, the coating powder or powder for a short time from a powder reservoir by means of a powder delivery device is transported to a powder spray gun and sprayed there with the powder spray gun on the workpiece. Instead, the powder coating powder can also be transported from the powder reservoir in a metering and from there with several individual pumps to the powder spray guns.
Aus dem deutschen Patent
Eine Aufgabe der Erfindung ist es, einen Förderkammerschlauch für eine Vorrichtung zum Fördern von Fluid anzugeben, bei dem gewährleistet ist, dass das im Förderkammerschlauch befindliche Fluid vollständig aus dem Förderkammerschlauch heraus transportierbar ist. Mit Hilfe des Förderkammerschlauchs soll der Materialtransport optimiert werden.An object of the invention is to provide a delivery chamber hose for a device for conveying fluid, wherein it is ensured that the fluid located in the delivery chamber hose is completely transportable out of the delivery chamber hose. With the help of the delivery chamber hose the material transport should be optimized.
Eine weitere Aufgabe ist es, eine Vorrichtung zum Fördern von Fluid mit dem Förderkammerschlauch anzugeben, bei der ebenfalls sichergestellt ist, dass das im Förderkammerschlauch befindliche Fluid vollständig heraustransportiert wird.Another object is to provide a device for conveying fluid with the delivery chamber tube, which also ensures that the fluid in the delivery chamber tube is completely transported out.
Die Aufgabe wird durch einen Förderkammerschlauch für eine Vorrichtung zum Fördern von Fluid mit den Merkmalen gemäß Anspruch 1 gelöst.The object is achieved by a delivery chamber hose for a device for conveying fluid having the features according to claim 1.
Der erfindungsgemäße Förderkammerschlauch für eine Vorrichtung zum Fördern von Fluid ist elastisch ausgebildet, weist einen Einlass und einen Auslass und im Bereich des Einlasses den kleinsten Widerstand auf.The delivery chamber hose according to the invention for a device for conveying fluid is elastic, has an inlet and an outlet and in the region of the inlet the smallest resistance.
Zudem wird die Aufgabe durch eine Vorrichtung zum Fördern von Fluid mit den Merkmalen gemäß Anspruch 10 gelöst.In addition, the object is achieved by a device for conveying fluid having the features according to
Die erfindungsgemäße Vorrichtung zum Fördern von Fluid umfasst einen Förderkammerschlauch, der elastisch ausgebildet ist, der einen Einlass und einen Auslass aufweist, und der im Bereich des Einlasses den kleinsten Widerstand hat. Zudem umfasst die Vorrichtung ein Einlassventil und ein Auslassventil, wobei das Einlassventil und das Auslassventil steuerbar sind. Der Förderkammerschlauch bildet eine Förderkammer, die zwischen dem Einlassventil und dem Auslassventil angeordnet ist, die einen Förderlufteinlass aufweist, und deren Volumen durch eine Verformung des Förderkammerschlauchs veränderbar ist.The device according to the invention for conveying fluid comprises a delivery chamber tube which is elastically formed, which has an inlet and an outlet, and which has the smallest resistance in the region of the inlet. In addition, the device comprises an inlet valve and an outlet valve, wherein the inlet valve and the outlet valve are controllable. The delivery chamber tube forms a delivery chamber, which is arranged between the inlet valve and the outlet valve, which has a delivery air inlet, and whose volume is variable by a deformation of the delivery chamber tube.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den in den abhängigen Ansprüchen angegebenen Merkmalen.Advantageous developments of the invention will become apparent from the features indicated in the dependent claims.
Bei einer Weiterbildung des erfindungsgemäßen Förderkammerschlauchs weist der Schlauch im Bereich des Einlasses eine Verjüngung auf. Diese ist vorteilhafterweise einfach herstellbar.In a further development of the delivery chamber tube according to the invention, the tube has a taper in the region of the inlet. This is advantageously easy to produce.
Bei einer zusätzlichen Weiterbildung des erfindungsgemäßen Förderkammerschlauchs sind im Bereich des Einlasses eine oder mehrere weitere Verjüngungen vorgesehen. Damit wird erreicht, dass der Förderkammerschlauch im entspannten Zustand an der Gehäuseinnenseite in einer definierten Lage anliegt. Dadurch hat also die Förderkammer des Förderkammerschlauchs jedes Mal, wenn der Förderkammerschlauch in den entspannten Zustand zurückkehrt, wieder das ursprüngliche Volumen.In an additional development of the delivery chamber tube according to the invention, one or more further tapers are provided in the region of the inlet. This ensures that the delivery chamber hose rests in the relaxed state on the inside of the housing in a defined position. As a result, therefore, the delivery chamber of the delivery chamber tube each time when the delivery chamber tube returns to the relaxed state, the original volume again.
Bei einer Ausführungsform des erfindungsgemäßen Schlauchs ist eine Aussparung im Schlauch vorgesehen, die vom Einlass zum Auslass hin kleiner wird. Wie bei der vorigen Ausführungsform wird dadurch erreicht, dass der Förderkammerschlauch im entspannten Zustand an der Gehäuseinnenseite in einer definierten Lage anliegt. Die Förderkammer des Förderkammerschlauchs hat somit jedes Mal, wenn der Förderkammerschlauch in den entspannten Zustand zurückkehrt, wieder das ursprüngliche Volumen.In one embodiment of the hose according to the invention a recess is provided in the hose, which is smaller from the inlet to the outlet. As in the previous embodiment is achieved in that the delivery chamber tube rests in the relaxed state on the inside of the housing in a defined position. The delivery chamber of the delivery chamber tube thus has the original volume each time the delivery tube returns to the relaxed state.
Bei einer weiteren Ausführungsform des erfindungsgemäßen Förderkammerschlauchs sind mehrere Schichten vorgesehen, wobei die Dicke wenigstens einer der Schichten vom Einlass zum Auslass hin zunimmt. Hiermit das vollständige Entleeren oder Ausschieben des Pulvers aus dem Förderkammerschlauch unterstützt.In a further embodiment of the delivery chamber tube according to the invention, several layers are provided, wherein the thickness of at least one of the layers increases from the inlet to the outlet. This supports the complete emptying or pushing out of the powder from the delivery chamber hose.
Vorteilhafterweise nimmt die Wandstärke bei dem erfindungsgemäßen Förderkammerschlauch vom Einlass zum Auslass hin zu.Advantageously, the wall thickness in the delivery chamber hose according to the invention increases from the inlet to the outlet.
Zusätzlich oder alternativ dazu kann der erfindungsgemäße Förderkammerschlauch auch eine Armierung aufweisen. Die Armierung ist vorzugsweise im mittleren Bereich und im Bereich des Auslasses angeordnet.Additionally or alternatively, the delivery chamber tube according to the invention may also have a reinforcement. The reinforcement is preferably arranged in the middle region and in the region of the outlet.
Nach einem weiteren Merkmal der Erfindung kann der Querschnitt des Förderkammerschlauchs auch oval sein.According to a further feature of the invention, the cross section of the delivery chamber tube may also be oval.
Darüber hinaus kann bei dem erfindungsgemäßen Förderkammerschlauch der Innendurchmesser des Förderkammerschlauchs vom Einlass zum Auslass hin abnehmen.Moreover, in the delivery chamber tube according to the invention, the inner diameter of the delivery chamber tube can decrease from the inlet to the outlet.
Schließlich kann bei der erfindungsgemäßen Vorrichtung zum Fördern von Fluid eine aus einem weiteren Förderkammerschlauch gebildete weitere Förderkammer vorgesehen sein, die zwischen einem weiteren Einlassventil und einem weiteren Auslassventil angeordnet ist. Die Förderkammer weist einen Förderlufteinlass auf und ihr Volumen ist durch eine Verformung des weiteren Förderkammerschlauchs veränderbar. Die Auslassventile sind ausgangsseitig miteinander verbunden.Finally, in the device according to the invention for conveying fluid, a further delivery chamber formed from a further delivery chamber tube can be provided, which is arranged between a further inlet valve and a further outlet valve. The delivery chamber has a delivery air inlet and its volume is variable by a deformation of the further delivery chamber tube. The outlet valves are connected together on the output side.
Die Einlässe der beiden Einlassventile können ebenfalls miteinander verbunden sein.The inlets of the two inlet valves can also be connected to each other.
Im Folgenden wird die Erfindung mit mehreren Ausführungsbeispielen anhand von 10 Figuren weiter erläutert.
- Figur 1
- zeigt eine mögliche Ausführungsform der erfindungsgemäßen Vorrichtung zum Fördern von Fluid in einer dreidimensionalen Ansicht.
Figur 2- zeigt die Fördervorrichtung in einer Explosionsdarstellung.
Figur 3- zeigt in einer dreidimensionalen Ansicht eine erste mögliche Ausführungsform des erfindungsgemäßen Förderkammerschlauchs, wie er in der Fördervorrichtung Verwendung finden kann.
Figur 4- zeigt die erste Ausführungsform des erfindungsgemäßen Förderkammerschlauchs im Querschnitt.
Figur 5- zeigt eine zweite mögliche Ausführungsform des erfindungsgemäßen Förderkammerschlauchs in der Seitenansicht.
Figur 6- zeigt eine dritte mögliche Ausführungsform des erfindungsgemäßen Förderkammerschlauchs in der Seitenansicht.
Figur 7- zeigt eine vierte mögliche Ausführungsform des erfindungsgemäßen Förderkammerschlauchs im Querschnitt.
Figur 8- zeigt eine fünfte mögliche Ausführungsform des erfindungsgemäßen Förderkammerschlauchs im Querschnitt.
Figur 9- zeigt eine sechste mögliche Ausführungsform des erfindungsgemäßen Förderkammerschlauchs im Querschnitt.
Figur 10- zeigt eine siebte mögliche Ausführungsform des erfindungsgemäßen Förderkammerschlauchs im Querschnitt.
- FIG. 1
- shows a possible embodiment of the device according to the invention for conveying fluid in a three-dimensional view.
- FIG. 2
- shows the conveyor in an exploded view.
- FIG. 3
- shows in a three-dimensional view a first possible embodiment of the delivery chamber tube according to the invention, as it can be found in the conveyor device use.
- FIG. 4
- shows the first embodiment of the delivery chamber tube according to the invention in cross section.
- FIG. 5
- shows a second possible embodiment of the delivery chamber tube according to the invention in the side view.
- FIG. 6
- shows a third possible embodiment of the delivery chamber tube according to the invention in the side view.
- FIG. 7
- shows a fourth possible embodiment of the delivery chamber tube according to the invention in cross section.
- FIG. 8
- shows a fifth possible embodiment of the delivery chamber tube according to the invention in cross section.
- FIG. 9
- shows a sixth possible embodiment of the delivery chamber tube according to the invention in cross section.
- FIG. 10
- shows a seventh possible embodiment of the delivery chamber tube according to the invention in cross section.
In
Die in den
Die erste Fördereinheit umfasst einen in einem Gehäuse 1.1 angeordneten Förderkammerschlauch 2 (siehe
Die zweite Fördereinheit ist baugleich mit der ersten Fördereinheit. Sie umfasst ein Gehäuse 1.2, in dem ein weiterer Förderkammerschlauch 3 angeordnet ist. Das Gehäuse 1.2 weist auf der Eingangsseite einen Gehäusedeckel 1.6 und auf der Ausgangsseite einen Gehäusedeckel 1.4 auf.The second conveyor unit is identical to the first conveyor unit. It comprises a housing 1.2, in which a further
Mit Hilfe eines Flansches 11 und den beiden Gehäusedeckeln 1.5 und 1.6 werden die beiden Schläuche 2 und 3 eingangsseitig fixiert. Auf der Auslassseite der beiden Fördereinheiten befindet sich ein weiterer Flansch 4, mit dem die beiden Schläuche 2 und 3 auslassseitig fixiert werden. Die beiden Flansche 4 und 11 werden über Schrauben 5 mit den Gehäusedeckeln 1.3, 1.4 beziehungsweise 1.5 und 1.6 verschraubt. Der auf der Einlassseite der beiden Fördereinheiten angeordnete Flansch 11 weist einen Förderluftanschluss 19 für die erste Fördereinheit und einen Förderluftanschluss 20 für die zweite Fördereinheit auf. Die beiden Förderluftanschlüsse 19 und 20 können jeweils mit einem Rückschlagventil ausgestattet sein. Zwischen dem Schlauchnippel 14, mit dem die zum Pulvervorratsbehälter führende Schlauchleitung verbindbar ist, und dem Flansch 11 ist ein Y-Stück 13 angeordnet. Mit Hilfe des Y-Stückes wird das Pulver, das über die Saugleitung aus Pulvervorratsbehälter gesaugt wird, gleichmäßig auf die beiden nachgeordneten Fördereinheiten verteilt. Jede der beiden Fördereinheiten weist jeweils ein Einlassventil auf. Das Einlassventil für die erste Fördereinheit ist über einen Steueranschluss 21 steuerbar. Die zweite Fördereinheit weist ebenfalls eingangsseitig ein Einlassventil auf, das über einen Steueranschluss 22 steuerbar ist. Die beiden Einlassventile sind in einem gemeinsamen Gehäuse 12 untergebracht.With the help of a
Ausgangsseitig weist die erste Fördereinheit ein Auslassventil auf, das über einen Steueranschluss 23 steuerbar ist. Die zweite Fördereinheit weist ebenfalls ausgangsseitig ein Auslassventil auf, das über einen Steueranschluss 24 steuerbar ist. Beide Auslassventile sind in einem gemeinsamen Gehäuse 6 untergebracht.On the output side, the first delivery unit has an outlet valve, which can be controlled via a
Sowohl die beiden Einlassventile als auch die beiden Auslassventile sind bei der in den
Mit Hilfe eines weiteren Y-Stücks 8 werden die Auslässe der beiden Auslassventile zusammengeführt und münden in einen gemeinsamen Pulverauslass, welcher über den Schlauchnippel 10 mit der Transportleitung verbindbar ist. Das Y-Stück 8 und die beiden Auslassventile werden mit mehreren Schrauben 9 am Flansch 4 befestigt. Das Y-Stück 13 und die beiden Einlassventile werden mit mehreren Schrauben am Flansch 11 befestigt.With the help of another Y-
Das Gehäuse 1.1 weist einen Druckluftanschluss 15 auf, über den Druckluft DL ins Innere des Gehäuses strömen kann. Die Druckluft DL bewirkt, dass die Druckluftkammer, die sich zwischen der Gehäuseinnenseite und dem Förderkammerschlauch 2 befindet, ausdehnt und damit der Förderkammerschlauch 2 zusammengedrückt wird. Dies wiederum führt dazu, dass das Volumen im Förderkammerschlauch 2 abnimmt. Über einen weiteren Anschluss 16 kann im Gehäuse 1.1 ein Unterdruck erzeugt werden, indem Luft aus der Druckluftkammer gesaugt wird. Durch den Unterdruck Vak wird sichergestellt, dass der Förderkammerschlauch 2 immer wieder in die gleiche definierte Ausgangslage gebracht wird. Zudem kann mit Hilfe des Unterdrucks Vak erreicht werden, dass sich der durch die Druckluft DL zusammengedrückte Förderschlauch 2 wieder schneller ausdehnt. Für die zweite Fördereinheit gilt sinngemäß das gleiche. Dazu ist am Gehäuse 1.2 ein Druckluftanschluss 17 vorgesehen, um Druckluft in das Gehäuse 1.2 strömen zu lassen. Zudem weist das Gehäuse 1.2 einen Anschluss 18 auf, der mit einer Unterdruckquelle verbindbar ist.The housing 1.1 has a compressed
Die Fördervorrichtung arbeitet wie folgt. Zuerst wird das Einlassventil der ersten Fördereinheit geschlossen und das Auslassventil der ersten Fördereinheit geöffnet. Dann wird der Förderkammerschlauch 2 der ersten Fördereinheit mit Hilfe von Druckluft DL zusammengedrückt, so dass sich das Volumen in der Förderkammer 40.1 reduziert. Anschließend wird zuerst das Auslassventil der ersten Fördereinheit geschlossen und dann das Einlassventil der ersten Fördereinheit geöffnet und dafür gesorgt, dass sich der Förderkammerschlauch 2 wieder ausdehnen kann. Auf diese Weise wird Pulver in die Förderkammer 40.1 gesaugt. Dann wird das Einlassventil der ersten Fördereinheit wieder geschlossen und das Auslassventil der ersten Fördereinheit geöffnet. Wird nun über den Anschluss 19 Förderluft in die Förderkammer 40.1 des Förderschlauchs 2 geblasen, wird das Pulver aus der Förderkammer 40.1 herausbefördert. Jetzt wird der Förderkammerschlauch 2 wieder zusammengedrückt und die oben beschriebenen Schritte werden wiederholt. Die zweite Fördereinheit arbeitet nach dem gleichen Prinzip. Die beiden Fördereinheiten werden so betrieben, dass während die eine Fördereinheit Pulver aus dem Pulvervorratsbehälter ansaugt, die andere Fördereinheit das Pulver in Richtung Pulversprühpistole transportiert. Während also der eine Förderschlauch zusammengedrückt wird, expandiert der andere Förderschlauch.The conveyor works as follows. First, the inlet valve of the first delivery unit is closed and the outlet valve of the first delivery unit is opened. Then the
Die beiden Gehäuseteile 1.1 und 1.2 können Rohre mit quadratischem oder rechteckigem Querschnitt sein.The two housing parts 1.1 and 1.2 may be tubes with a square or rectangular cross-section.
Die Öffnungen in den Gehäusedeckeln 1.3, 1.4, 1.5 und 1.6 können, wie in
In
Mit Widerstand ist die mechanische Widerstandskraft oder das mechanische Widerstandsmoment gemeint. Je kleiner der Widerstand des Materials ist, desto kleiner ist somit die Steifigkeit des Materials.By resistance is meant the mechanical resistance or the mechanical moment of resistance. The smaller the resistance of the material, the smaller the rigidity of the material.
Um bei der Montage die richtige Orientierung des Förderschlauchs in der Fördereinheit zu gewährleisten, kann auf dem Förderschlauch ein Pfeil 30 zur Kennzeichnung der Förderrichtung aufgebracht sein.In order to ensure the correct orientation of the delivery tube in the delivery unit during assembly, an
In
In
In
In
Eine sechste Ausführungsform des Förderschlauchs ist in
In
Die Konizität kann bei den in den
Die vorhergehende Beschreibung der Ausführungsbeispiele gemäß der vorliegenden Erfindung dient nur zu illustrativen Zwecken und nicht zum Zwecke der Beschränkung der Erfindung. Im Rahmen der Erfindung sind verschiedene Änderungen und Modifikationen möglich, ohne den Umfang der Erfindung sowie ihre Äquivalente zu verlassen.The foregoing description of the embodiments according to the present invention is for illustrative purposes only, and not for the purpose of limiting the invention. Within the scope of the invention are various changes and modifications are possible without departing from the scope of the invention and its equivalents.
- 1.11.1
- Gehäuse für den ersten FörderschlauchHousing for the first delivery hose
- 1.21.2
- Gehäuse für den zweiten FörderschlauchHousing for the second delivery hose
- 1.31.3
- Gehäusedeckelhousing cover
- 1.41.4
- Gehäusedeckelhousing cover
- 1.51.5
- Gehäusedeckelhousing cover
- 1.61.6
- Gehäusedeckelhousing cover
- 22
- erster Förderschlauchfirst delivery hose
- 33
- zweiter Förderschlauchsecond delivery hose
- 44
- Flanschflange
- 55
- Schraubenscrew
- 66
- Gehäuse des AuslassventilsHousing of the exhaust valve
- 77
- Ventilschlauchvalve tube
- 88th
- Y-StückY-piece
- 99
- Schraubenscrew
- 1010
- Schlauchnippelhose nipple
- 1111
- Flanschflange
- 1212
- Gehäuse des EinlassventilsHousing of the inlet valve
- 1313
- Y-StückY-piece
- 1414
- Schlauchnippelhose nipple
- 1515
- DruckluftanschlussCompressed air connection
- 1616
- Anschluss für VakuumConnection for vacuum
- 1717
- DruckluftanschlussCompressed air connection
- 1818
- Anschluss für VakuumConnection for vacuum
- 1919
- Förderluftanschluss mit RückschlagventilDelivery air connection with check valve
- 2020
- Förderluftanschluss mit RückschlagventilDelivery air connection with check valve
- 2121
- Steueranschlusscontrol connection
- 2222
- Steueranschlusscontrol connection
- 2323
- Steueranschlusscontrol connection
- 2424
- Steueranschlusscontrol connection
- 3030
- Strömungsrichtungflow direction
- 3131
- Wulstbead
- 3232
- Wulstbead
- 3333
- Verjüngungrejuvenation
- 3434
- Mantelcoat
- 35.1 - 35.435.1 - 35.4
- Verjüngungentapers
- 36.136.1
- keilförmige Aussparungwedge-shaped recess
- 36.236.2
- keilförmige Aussparungwedge-shaped recess
- 3737
- innere Schichtinner layer
- 38.138.1
- Armierungreinforcement
- 38.238.2
- Armierungreinforcement
- 4040
- Förderkammerdelivery chamber
- 40.140.1
- Förderkammer des ersten FörderschlauchsDelivery chamber of the first delivery hose
- 40.240.2
- Förderkammer des zweiten FörderschlauchsDelivery chamber of the second delivery hose
Claims (12)
der im Bereich des Einlasses (31) eine Verjüngung (33) aufweist.Delivery chamber hose according to claim 1,
in the region of the inlet (31) has a taper (33).
der im Bereich des Einlasses (31) eine oder mehrere weitere Verjüngungen (35.2 - 35.4) aufweist.Delivery chamber hose according to claim 1 or 2,
in the region of the inlet (31) has one or more further tapers (35.2 - 35.4).
der eine vom Einlass (31) zum Auslass (32) hin kleiner werdende Aussparung (36.1; 36.2) aufweist.Delivery chamber hose according to one of the preceding claims,
has a from the inlet (31) to the outlet (32) towards becoming smaller recess (36.1; 36.2).
der mehrere Schichten (34, 37) aufweist, wobei wenigstens eine der Schichten (37) vom Einlass (31) zum Auslass (32) hin zunimmt.Delivery chamber hose according to one of the preceding claims,
a plurality of layers (34, 37), wherein at least one of the layers (37) increases from the inlet (31) towards the outlet (32).
dessen Wandstärke (x1, x2) vom Einlass (31) zum Auslass (32) hin zunimmt.Delivery chamber hose according to one of the preceding claims,
whose wall thickness (x1, x2) increases from the inlet (31) towards the outlet (32).
der eine Armierung (38.1) aufweist.Delivery chamber hose according to one of the preceding claims,
which has a reinforcement (38.1).
dessen Querschnitt oval ist.Delivery chamber hose according to one of the preceding claims,
whose cross-section is oval.
dessen Innendurchmesser (d1, d2) vom Einlass (31) zum Auslass (32) hin abnimmt.Delivery chamber hose according to one of the preceding claims,
the inner diameter (d1, d2) of which decreases from the inlet (31) to the outlet (32).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20070405070 EP1967281B1 (en) | 2007-03-05 | 2007-03-05 | Pump chamber hose and pumping device |
US12/041,719 US8201579B2 (en) | 2007-03-05 | 2008-03-04 | Conveying chamber hose for a device for conveying fluid and a device for conveying fluid with the conveying chamber hose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20070405070 EP1967281B1 (en) | 2007-03-05 | 2007-03-05 | Pump chamber hose and pumping device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1967281A1 true EP1967281A1 (en) | 2008-09-10 |
EP1967281B1 EP1967281B1 (en) | 2013-01-02 |
Family
ID=37965123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20070405070 Not-in-force EP1967281B1 (en) | 2007-03-05 | 2007-03-05 | Pump chamber hose and pumping device |
Country Status (2)
Country | Link |
---|---|
US (1) | US8201579B2 (en) |
EP (1) | EP1967281B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2777821B1 (en) | 2013-03-15 | 2017-02-22 | Nordson Corporation | Dense phase pump with easily replaceable components |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011004035A1 (en) * | 2011-02-14 | 2012-08-16 | Illinois Tool Works Inc. | Powder pump for conveying coating powder |
DE102011052432A1 (en) * | 2011-04-15 | 2012-10-18 | Reinhausen Plasma Gmbh | Diaphragm pump and method for conveying fine-grained powders by means of a diaphragm pump |
US8997793B2 (en) | 2011-06-15 | 2015-04-07 | U.S. Farathane Corporation | Flexible conduit for use in fresh air intake and gas vapor outlet incorporated into a vehicle fuel tank to eliminate whistling within the conduit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10353968A1 (en) * | 2003-11-19 | 2005-07-07 | Itw Gema Ag | Coating powder conveying device, especially for transporting powder from a storage container, e.g. a sack or bag, has a hose membrane pump for transporting powder that has been fluidized using compressed air |
DE102005006522B3 (en) * | 2005-02-11 | 2006-08-03 | J. Wagner Ag | Feed device for coating powder has controllable inlet and outlet valves, powder feed chamber formed from elastic feed chamber hose |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5531083U (en) * | 1978-08-23 | 1980-02-28 | ||
US4523738A (en) * | 1982-03-05 | 1985-06-18 | Red Valve Co. Inc. | Deformable sleeve for a pinch valve |
DE20321762U1 (en) * | 1988-05-11 | 2009-08-27 | H. Börger & Co. GmbH | Device for conveying powdery material |
US6505810B2 (en) * | 2000-06-22 | 2003-01-14 | Red Valve Co Inc | Pinch valve arrangement for flow control |
US6607010B1 (en) * | 2001-05-10 | 2003-08-19 | Southeastern Universities Res. Assn, Inc. | Flexible collapse-resistant and length-stable vaccum hose |
-
2007
- 2007-03-05 EP EP20070405070 patent/EP1967281B1/en not_active Not-in-force
-
2008
- 2008-03-04 US US12/041,719 patent/US8201579B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10353968A1 (en) * | 2003-11-19 | 2005-07-07 | Itw Gema Ag | Coating powder conveying device, especially for transporting powder from a storage container, e.g. a sack or bag, has a hose membrane pump for transporting powder that has been fluidized using compressed air |
DE102005006522B3 (en) * | 2005-02-11 | 2006-08-03 | J. Wagner Ag | Feed device for coating powder has controllable inlet and outlet valves, powder feed chamber formed from elastic feed chamber hose |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2777821B1 (en) | 2013-03-15 | 2017-02-22 | Nordson Corporation | Dense phase pump with easily replaceable components |
Also Published As
Publication number | Publication date |
---|---|
US20080219780A1 (en) | 2008-09-11 |
US8201579B2 (en) | 2012-06-19 |
EP1967281B1 (en) | 2013-01-02 |
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