Air Cap Cleaner

8/17/2019 Air Cap Cleaner

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As of: 25.03.2002/BAL 1 H033GB02

Product Information

Area of Application

Construction and Functional Principle, Standard and Options

Advantages

Marginal Conditions of Use Technical Data, Scope of Delivery

EcoGun Air Cap Cleaner

P25100401


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EcoGun Cap Cleaner

Area of Application

The air cap cleaning device (ACCD) is mainly used with

robots.

On request, the ACCD can be used with machines.

In this case, the ACCD can both be positioned below

grid level by means of a pneumatic lifting device and

above grid level by means of an electric pivoting unit.

The ACCD is designed for the use with waterbased andsolventbased paint systems. When using 2K paint, raised

maintenance requirement must be expected, the use of

the disposal tank is not recommended in this case.

The ACCD can only be used with Dürr air atomizer models

EcoGun1 and 2.


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Area of Application

EcoGun Cap Cleaner

The ACCD basically consists of the 4 main components:

- cleaning tank

- cover with integrated packing system

- pivoting bracket

- blowing air system

It has the following functions:

- exterior cleaning of the air atomizer air cap by means of

purging solvent (pivoting bracket)

- subsequent blow-drying of the air cap with compressed

air (blowing air ring)

The ACCD is mainly used with robots. In order to meet this

requirement, the ACCD is to be expanded correspondinglywith the following components:

- ACCD disposal tank 0.75 l

N08050002, 3 or 4 (option: with position inquiry of the

shut-off fitting and tilting of the disposal tank)

- ACCD pneumatic add-on pieces N91150002

- cover, console, adapter and bracket for the respective

version are planned for the standard case "installation at

the side of the robot basic body".

In the simplest case, the ACCD is operated with free outlet

of the dirty solvent into the washout. The dirty solvent can

be collected by the optionally installed disposal tank anddisposed into a collecting line by means of compressed air.


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Construction and Function Principle, Standard and Options

EcoGun Cap Cleaner

In the gap between 2 bodies, the air atomizer is placed

vertically from above into the cover of the ACCD to clean

the air cap. The aperture of the cover has an especially

developed gasket system which prevents the escaping of

purging solvent or compressed air from the ACCD.

To compensate any possible position inaccuracies, the

cover has a movable bearing with radially arranged

springs and can be displaced from the zero position

approx. 5 mm into every direction.

Before the actual air cap cleaning, the color change action

(purging and pressing) of the air atomizer can be carried

out inside the ACCD first.

The air cap is cleaned by means of a pneumatically driven

pivoting bracket that sprinkles the air cap from3 - 6 nozzles with a cleaning material adapted to the paint

material in several pivoting movements (at least 2 double

strokes). The pivoting movement realizes an efficient

cleaning with low solvent consumption.

During the exterior cleaning of the air cap, fan pattern and

atomizer air of the air atomizer are active with low

required value (approx. 100 Nl/min) to prevent the ingress

of purging agent into the air atomizer.

After the exterior cleaning has been finished, the air cap

is blown dry drip-free by blowing air nozzles in the tank

and in the cover. A ventilation equipment installed in the

external tank wall leads the air outside.Besides, fan pattern (horn) air and atomizer air are

activated with high required value (approx. 200 Nl/min)

when the atomizer is retracted.

All valve and monitoring functions are controlled

pneumatically.


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EcoGun Cap Cleaner


SingleGun - Standard Installation Position


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EcoGun Cap Cleaner

SingleGun


Pivoting drive with position inquiry

Pivoting bracket

with nozzles (solvent)

solvent

connecting unit

Blowing air

with nozzles

Blowing air connection 5


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EcoGun Cap Cleaner


TwinGun - Standard Installation Position


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EcoGun Cap Cleaner

TwinGun


Pivoting bracket

with nozzles (solvent)

Pivoting drive

Blowing air with

nozzles

Opening for material

disposal

Connecting unit

(solvent)


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Advantages

EcoGun Cap Cleaner

• Compact design

• Cleaning device for all air atomizer brackets available (SingleGun, TwinGun and DoubleGun)

• Cover with flexible bearings

• Especially suited for painting robots

• Stationary and travelling assembly possible

• Easily exchangeable through quick plug connections for hose lines

• Color change inside air cap cleaning device possible

• Short cleaning time and low use of solvent

• Disposal directly into washout or via disposal tanks (option) into collecting return line


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Marginal Conditions of Use

EcoGun Cap Cleaner

Cleaning Device Versions:

• Air cap cleaning device for EcoGun1 N05010006

• Air cap cleaning device for EcoGun2 TwinGun N05010039

• Air cap cleaning device for EcoGun2 N05010007

Two cleaning devices of the model N05010007 whose centers are positioned at a distance of 300 mm are used for the air cap cleaning of the EcoGun2 DoubleGun.

With too small body gap (cycle time) it may be necessary to separate color change and air cap cleaning, that is an

air cap cleaning can only occur in the body gap following after a color change.

An air cap cleaning is dependent on the painting scopes and not absolutely necessary after each car body. The

requirement must be determined specifically for each system.


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Technical Data, Scope of Delivery

EcoGun Cap Cleaner

Air cap cleaning device for:Dimensions: width

depht

height

Weight:

Connected loads: solvent

compressed air

Purging agent consumption:

Air consumption (ACCD in cleaning position):

Cleaning duration (air cap): waterbased paint

solvent

Air consumption blowing air nozzles:

EcoGun1/2 EcoGun Twin

250 mm 400 mm

220 mm 385 mm

240 mm 280 mm

approx. 4 kg approx. 8 kg

5 - 8 bar 5 - 8 bar

6 - 8 bar 6 - 8 bar

approx. 50 ml approx. 100 ml

100 Nl 200 Nl

10 - 12 s 10 - 12 s

8 - 10 s 8 - 12 s

860 - 900 Nl 1700 - 1800 Nl


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Technical Data, Scope of Delivery

EcoGun Cap Cleaner

Purgingsolvent V5 (5 bar)

blowing air BL4 (6 - 8 bar)

blowing air BL5 (6 - 8 bar)

fan pattern air HL (50 Nl/min)atomizer air ZL (50 Nl/min)

fan pattern air HL (200 Nl/min)

atomizer air ZL (200 Nl/min)

SA

blocking air (5 bar)

immerse air atomizer in

cleaning device

Time in s 1 2 3 4 5 6 7 8 9 10 11

Example: Purging program for combined process

of color change and air cap cleaning


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Change Service

Date/Person Responsible Affected Pages Reason for Revision

08.02.2002/Ballandies All First edition25.03.2002/Karl All New layout

EcoGun Cap Cleaner

Documents

Air Cap Cleaner