CH615844A5

CH615844A5 - Paint spraying system

Info

Publication number: CH615844A5
Application number: CH662875A
Authority: CH
Inventors: Albert Froehlich
Original assignee: Albert Froehlich
Priority date: 1975-05-23
Filing date: 1975-05-23
Publication date: 1980-02-29

Abstract

The paint spraying system has a paint spraying stand arranged at a distance from the wall and from the floor. Disposed in the paint spraying stand is a tubular filter (5) which is surrounded by side walls (2), a removable cover (4) and a removable baffle (3). At the reverse side and at the bottom, the paint spraying stand is open. A fan (7) generates concentrated air streams (L) along the wall and the base, thereby extracting the paint mist and solvent and depositing them on the filter (5). To adapt the extraction effect to the particular requirements and thereby to save energy, means (14) for reducing the air flow are present. These means can comprise a throttle flap or a variable-speed electric motor. <IMAGE>

Description

**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **. ** WARNING ** beginning of DESC field could overlap end of CLMS **.

PATENTANSPRUCH Farbspritzanlage nach dem Patentanspruch des Hauptpatentes, dadurch gekennzeichnet, dass sie Mittel (14) zur Verminderung der Luftströmung (L) aufweist. PATENT CLAIM Paint spraying system according to the patent claim of the main patent, characterized in that it has means (14) for reducing the air flow (L).

UNTERANSPRÜCHE 1. Farbspritzanlage nach Patentanspruch, dadurch gekennzeichnet, dass zwischen dem Sauggebläse (7) und einer Seitenwand (2) ein Verbindungsstutzen (13) angeordnet ist, in welchem eine von aussen betätigbare Drosselklappe (14) untergebracht ist. SUB-CLAIMS 1. Paint spraying system according to claim, characterized in that between the suction fan (7) and a side wall (2) a connecting piece (13) is arranged, in which an externally actuatable throttle valve (14) is housed.

2. Farbspritzanlage nach Patentanspruch, dadurch gekennzeichnet, dass das Gebläse (7) über eine Öffnung in einer Seitenwand (2) mit dem Hohlraum (16) verbunden ist, die durch einen von aussen betätigbaren Schieber wenigstens teilweise abdeckbar ist. 2. Paint spraying system according to claim, characterized in that the fan (7) is connected via an opening in a side wall (2) to the cavity (16), which can be at least partially covered by an externally actuated slide.

3. Farbspritzanlage nach Patentanspruch, dadurch ge kennzeichnet, dass das Sauggebläse (7) durch einen Antrieb mit verstellbarer Drehzahl angetrieben ist. 3. Paint spraying system according to claim, characterized in that the suction fan (7) is driven by a drive with an adjustable speed.

4. Farbspritzanlage nach Patentanspruch, dadurch ge kennzeichnet, dass die Mittel (14) elektrisch oder mechanisch mit einer Aufhängevorrichtung (19) für eine Spritzpistole (20) verbunden sind, derart, dass beim Aufhängen der Pistole (20) automatisch eine Verminderung der Luftströmung (L) eintritt. 4. Paint spraying system according to claim, characterized in that the means (14) are electrically or mechanically connected to a suspension device (19) for a spray gun (20), such that when the gun (20) is suspended, a reduction in the air flow ( L) occurs.

5. Farbspritzanlage nach den Unteransprüchen 1 oder 2, dadurch gekennzeichnet, dass die Klappe (14) bzw. der Schieber mittels einer Verschraubung in einer Lage feststellbar ist oder mittels verstellbarer Anschläge in ihrer bzw. seiner Verschiebung bzw. Verschwenkung begrenzt ist. 5. Paint spraying system according to subclaims 1 or 2, characterized in that the flap (14) or the slide can be locked in one position by means of a screw connection or is limited in its or its displacement or pivoting by means of adjustable stops.

Gegenstand der Erfindung des Hauptpatentes ist eine Farbspritzanlage, welche dadurch gekennzeichnet ist, dass ein vorne, seitlich und oben geschlossener Farbspritzstand im Abstand von einer Wand und im Abstand über einem Boden angeordnet ist, dass eine dem Boden zugekehrte Partie und eine der Wand zugekehrte Partie des Spritzstandes mindestens teilweise offen sind und dass zwischen diesen Partien und einem im Inneren des Standes sich befindenden, mit einem Sauggebläse in Verbindung stehenden Hohlraum mindestens ein Filterträger mit einem Filterbelag vorgesehen ist, das Ganze derart, dass um den Farbspritzstand eine konzentrierte Luftströmung entsteht, welche zur Entfernung von Farbnebel und gasförmigen Lösungsmitteln dient. The subject of the invention of the main patent is a paint spraying system, which is characterized in that a paint spray booth which is closed at the front, on the side and at the top is arranged at a distance from a wall and at a distance from a floor, that a section facing the floor and a section facing the wall Spray booth are at least partially open and that between these parts and a cavity located in the interior of the booth, which is connected to a suction fan, at least one filter carrier with a filter covering is provided, all in such a way that a concentrated air flow arises around the paint spray booth, which leads to Removal of paint mist and gaseous solvents is used.

Es ist Aufgabe der vorliegenden Erfindung, eine Verbesserung an dieser Farbspritzanlage zu schaffen. Die erfindungsgemässe Verbesserung hebt sich dadurch hervor, dass die Anlage Mittel zur Verminderung der Luftströmung aufweist. It is an object of the present invention to provide an improvement in this paint spraying system. The improvement according to the invention is distinguished by the fact that the system has means for reducing the air flow.

Dadurch ist es möglich, die Absaugung den jeweiligen Bedürfnissen anzupassen, was zu einer erheblichen Energieeinsparung führt, da die Wärmeverluste geringer sind als bei einer konventionellen Anlage mit konstanter Absaugung. This makes it possible to adapt the extraction to the respective requirements, which leads to considerable energy savings, since the heat losses are lower than in a conventional system with constant extraction.

Anhand der Zeichnung wird nachfolgend ein Ausführungsbeispiel der Erfindung beschrieben. An exemplary embodiment of the invention is described below with reference to the drawing.

Es zeigen: Fig. 1 einen Teillängsschnitt durch eine mobile Farbabsauganlage und Fig. 2 eine Seitenansicht mit Teilschnitt durch eine weitere Ausführungsform einer Farbabsauganlage, wobei das Gebläse nicht dargestellt ist. Show it: Fig. 1 shows a partial longitudinal section through a mobile paint extraction system and Fig. 2 is a side view with partial section through a further embodiment of a paint extraction system, the fan not being shown.

Die mobile Farbabsauganlage gemäss der Fig. 1 hat einen quadratischen Querschnitt und umfasst einen aus Profilstücken zusammengeschweissten, rechteckigen Tragrahmen 1 mit fest daran montierten Seitenwänden 2, an welchen je eine ringförmige Manschette 6 angebracht ist. Eine wegnehmbare Prallwand 3 ist vorne am Spritzstand befestigt, und ein ebenfalls wegnehmbarer Deckel 4 schliesst die Anlage oben ab. Die Anlage ist unten 12 und hinten offen. The mobile paint extraction system according to FIG. 1 has a square cross section and comprises a rectangular support frame 1 welded together from profile pieces with side walls 2 firmly attached to which an annular sleeve 6 is attached in each case. A removable baffle 3 is attached to the front of the spray booth, and a removable cover 4 also closes the top of the system. The facility is open at the bottom 12 and at the rear.

Ein aus einem Drahtgeflecht bestehender Zylinder 5 mit einem Filterbelag ist drehbar beidseits über die Manschetten 6 gestülpt und umhüllt einen Hohlraum 16 im Innern der Absauganlage. Der Hohlraum 16 steht mit einem seitlich angeordneten Gebläse 7 in Verbindung, welches Gebläse 7 im Hohlraum 16 einen Unterdruck erzeugt. Die Anlage wird durch Rollen 8 im Abstand b über dem Boden 9 gehalten. A cylinder 5 consisting of a wire mesh with a filter covering is rotatably placed on both sides over the sleeves 6 and envelops a cavity 16 in the interior of the suction system. The cavity 16 is connected to a laterally arranged fan 7, which fan 7 generates a negative pressure in the cavity 16. The system is held by rollers 8 at a distance b above the floor 9.

Zwischen dem Sauggebläse 7 und der einen Seitenwand 2 ist ein Verbindungsstutzen 13 vorgesehen, in welchem eine von aussen betätigbare Drosselklappe 14 untergebracht ist. Between the suction fan 7 and the one side wall 2, a connecting piece 13 is provided, in which a throttle valve 14 which can be actuated from the outside is accommodated.

Die Drosselklappe 14 ist um eine Achse 15 drehbar, damit die Absaugleitung den jeweiligen Arbeitsbedingungen angepasst werden kann. Um eine stufenlose Verstellung zu erreichen, könnte die Achse 15, z. B. mittels einer Schraube in jeder Lage feststellbar sein. The throttle valve 14 is rotatable about an axis 15 so that the suction line can be adapted to the respective working conditions. In order to achieve a continuous adjustment, the axis 15, z. B. can be determined in any position by means of a screw.

Bei einer weiteren Ausführungsform gemäss Fig. 2 ist an einem Ende der Achse 15 ein Hebel 17 befestigt, der mittels eines Gestänges, eines Bremskabels oder eines Seilzuges 18 mit einem Ständer 19 für die Spritzpistole 20 verbunden ist. In a further embodiment according to FIG. 2, a lever 17 is attached to one end of the axis 15 and is connected to a stand 19 for the spray gun 20 by means of a linkage, a brake cable or a cable 18.

Am Ständer 19 ist ein Schwenkarm 21 gelenkig angebracht, dessen eines Ende einen Haken 22 aufweist und an dessen anderem Ende 23 das Seil 18 befestigt ist. Sobald nun die Pistole 20 am Haken 22 aufgehängt wird. kippt der Schwenkarm 21 nach unten und bewirkt über das Seil 18 ein mindestens teilweises Schliessen der Klappe 14. Die Klappe wird nicht ganz geschlossen, damit Restdämpfe noch abgesaugt werden können. Durch nicht näher dargestellte Haltestifte oder verschiebbare Anschläge kann die Klappe in jeder Stellung festgehalten oder in ihrer Bewegung begrenzt werden. A pivot arm 21 is articulated on the stand 19, one end of which has a hook 22 and the other end 23 of which the rope 18 is fastened. As soon as the gun 20 is hung on the hook 22. the swivel arm 21 tilts down and causes the flap 14 to close at least partially via the cable 18. The flap is not fully closed so that residual vapors can still be extracted. By holding pins or displaceable stops, not shown, the flap can be held in any position or limited in its movement.

Sobald die Pistole vom Ständer abgehoben wird, genügt der auf die Klappe einwirkende Luftdruck, um diese wieder in eine offene, ebenfalls durch Anschläge definierte Stellung zu drücken. As soon as the gun is lifted from the stand, the air pressure acting on the flap is sufficient to push it back into an open position, also defined by stops.

Statt einer Klappe könnte auch ein in der Seitenwand 2 untergebrachter, von aussen zugänglicher Schieber verwendet werden, um die Luftströmung L zu drosseln. Eine weitere Möglichkeit besteht darin, das Sauggebläse durch einen Antrieb mit verstellbarer Drehzahl anzutreiben. Die Verminderung der Luftströmung könnte dann elektrisch erfolgen, wobei durch das Einhängen der Pistole ein elektrischer Kontakt betätigt würde, welcher eine Reduktion der Drehzahl des Gebläses auslösen würde. Instead of a flap, a slide which is accommodated in the side wall 2 and which is accessible from the outside could also be used in order to restrict the air flow L. Another possibility is to drive the suction fan by means of an adjustable speed drive. The air flow could then be reduced electrically, with an electrical contact being actuated by hanging the gun, which would trigger a reduction in the speed of the fan.

Durch die Reduktion der Absaugwirkung ist es möglich, die Luftströmung den Arbeitsbedingungen anzupassen, was gesamthaft zu einem geringeren Luftverbrauch und zu einer Energieeinsparung führt. Die optimale Absaugleitung für das Spritzen kann durch Anschläge für die Klappe oder den Schieber eingestellt werden. Die teilweise offene Stellung bei aufgehängter Pistole ist ebenfalls durch Begrenzungsanschläge einstellbar, derart, dass beim Aufhängen der Pistole die Klappe automatisch in die richtige Stellung kommt. By reducing the suction effect, it is possible to adapt the air flow to the working conditions, which overall leads to lower air consumption and energy savings. The optimal suction line for spraying can be set using stops for the flap or slide. The partially open position when the pistol is suspended can also be adjusted by means of limit stops in such a way that the flap automatically comes into the correct position when the pistol is suspended.

Claims

PATENT CLAIM Paint spraying system according to the patent claim of the main patent, characterized in that it has means (14) for reducing the air flow (L). SUB-CLAIMS

1. Paint spraying system according to claim, characterized in that between the suction fan (7) and a side wall (2) a connecting piece (13) is arranged, in which an externally actuatable throttle valve (14) is housed.

2. Paint spraying system according to claim, characterized in that the fan (7) is connected via an opening in a side wall (2) to the cavity (16), which can be at least partially covered by an externally actuated slide.

3. Paint spraying system according to claim, characterized in that the suction fan (7) is driven by a drive with an adjustable speed.

4. Paint spraying system according to claim, characterized in that the means (14) are electrically or mechanically connected to a suspension device (19) for a spray gun (20), such that when the gun (20) is suspended, a reduction in the air flow ( L) occurs.

5. Paint spraying system according to subclaims 1 or 2, characterized in that the flap (14) or the slide can be locked in one position by means of a screw connection or is limited in its or its displacement or pivoting by means of adjustable stops.

The subject of the invention of the main patent is a paint spraying system, which is characterized in that a paint spray booth which is closed at the front, on the side and at the top is arranged at a distance from a wall and at a distance from a floor, that a section facing the floor and a section facing the wall Spray booth are at least partially open and that at least one filter support with a filter covering is provided between these parts and a cavity located in the interior of the booth, which is connected to a suction fan, all in such a way that a concentrated air flow arises around the paint spray booth, which leads to Removal of paint mist and gaseous solvents is used.

It is an object of the present invention to provide an improvement in this paint spraying system. The improvement according to the invention is distinguished by the fact that the system has means for reducing the air flow.

This makes it possible to adapt the extraction to the respective requirements, which leads to considerable energy savings, since the heat losses are lower than in a conventional system with constant extraction.

An exemplary embodiment of the invention is described below with reference to the drawing.

Show it: Fig. 1 shows a partial longitudinal section through a mobile paint extraction system and Fig. 2 is a side view with partial section through a further embodiment of a paint extraction system, the fan not being shown.

The mobile paint extraction system according to FIG. 1 has a square cross section and comprises a rectangular support frame 1 welded together from profile pieces with side walls 2 firmly attached to which an annular sleeve 6 is attached in each case. A removable baffle 3 is attached to the front of the spray booth, and a removable cover 4 also closes the top of the system. The facility is open at the bottom 12 and at the rear.

A cylinder 5 consisting of a wire mesh with a filter covering is rotatably placed on both sides over the sleeves 6 and envelops a cavity 16 in the interior of the suction system. The cavity 16 is connected to a laterally arranged fan 7, which fan 7 generates a negative pressure in the cavity 16. The system is held by rollers 8 at a distance b above the floor 9.

Between the suction fan 7 and the one side wall 2, a connecting piece 13 is provided, in which a throttle valve 14 which can be actuated from the outside is accommodated.

The throttle valve 14 is rotatable about an axis 15 so that the suction line can be adapted to the respective working conditions. In order to achieve a continuous adjustment, the axis 15, z. B. can be determined in any position by means of a screw.

In a further embodiment according to FIG. 2, a lever 17 is attached to one end of the axis 15 and is connected to a stand 19 for the spray gun 20 by means of a linkage, a brake cable or a cable 18.

A pivot arm 21 is articulated on the stand 19, one end of which has a hook 22 and the other end 23 of which the rope 18 is fastened. As soon as the gun 20 is hung on the hook 22. the swivel arm 21 tilts down and causes the flap 14 to close at least partially via the cable 18. The flap is not fully closed so that residual vapors can still be extracted. By holding pins or displaceable stops, not shown, the flap can be held in any position or limited in its movement.

As soon as the gun is lifted from the stand, the air pressure acting on the flap is sufficient to push it back into an open position, also defined by stops.

Instead of a flap, a slide which is accommodated in the side wall 2 and which is accessible from the outside could also be used in order to restrict the air flow L. Another possibility is to drive the suction fan by means of an adjustable speed drive. The air flow could then be reduced electrically, with an electrical contact being actuated by hanging the gun, which would trigger a reduction in the speed of the fan.

By reducing the suction effect, it is possible to adapt the air flow to the working conditions, which overall leads to lower air consumption and energy savings. The optimal suction line for spraying can be set using stops for the flap or slide. The partially open position when the pistol is suspended can also be adjusted by means of limit stops in such a way that the flap automatically comes into the correct position when the pistol is suspended.

** WARNING ** End of CLMS field could overlap beginning of DESC **.