DE202016005516U1 - Spraying device for atomized spraying in an automatic operation - Google Patents

Abstract

Injection device for spraying a spraying liquid, in particular a coating material, preferably a paint, a lacquer, an adhesive material or the like, in an automatic operation, wherein spraying device has an automatic injection module and a supply module, and wherein the automatic injection module comprises at least one injection module body Spray nozzle, a spray liquid line for supplying spray liquid to the spray nozzle and a Zerstäubungsdruckluftleitung for supplying atomizing compressed air to the spray nozzle, wherein the injection module body is provided with a connection surface, which for supplying the automatic injection module with the spray liquid and the atomizing compressed air detachably on a connection surface of the supply module is attachable, wherein the Zerstäubungsdruckluft- and spray liquid line open in the connection surface, characterized in that the connection surface e (59; 51) of the automatic injection module (1) and / or the supply module (2, 2a, 2b) is set back relative to adjacent circumferential surface sections of the injection module body (3) or of the supply module body (2, 2a, 2b).

Description

The invention relates to a spraying device for spraying a spraying liquid, in particular a coating material, preferably a paint, a lacquer, an adhesive material or the like, in an automatic operation, wherein the spraying device comprises an automatic injection module and a supply module, and wherein the automatic injection module at least one injection module body, a spray nozzle, a spray liquid line for supplying spray liquid to the spray nozzle and a Zerstäubungsdruckluftleitung for supplying atomizing compressed air to the spray nozzle, wherein the injection module body is provided with a connection surface, which for supplying the automatic injection module with the spray liquid and the atomizing compressed air solvable can be fastened to a connection surface of the supply module and wherein the Zerstäubungsdruckluft- and spray liquid line open in the connection surface, for the indu in which one or more of these spraying devices are arranged in a line or track and for automatic operation, i. H. for the automatic coating of similar workpieces, such. As car body parts, are provided in series.

The automatic coating can, for. B. with the use of robots or automatic movement, wherein the material supply takes place by means of an external pressure generation as in the plant or boiler guns. The automatic injection modules or automatic pistols are divided into externally controlled robotic pistols and internally controlled automatic pistols. In the externally controlled robot guns all jet settings or material quantity settings on external valves, the z. B. can be arranged in the cabinet, made. With the automatic pistols themselves, all settings can be made directly on the gun. Automatic systems use automatic guns with internal or external jet control.

A generic spray device is for example from the EP 2 393 606 B1 known. The modular design of the spray device allows the design of the individual components can be made according to the individual requirements. The mutual attachment of the two modules is usually done by bolts and threaded elements. This is sometimes considered awkward and unsafe. Difficulties often make a secure Lagepostionierung the color needle in the injection module.

A first object of the present invention is to provide an improved spraying device of the type mentioned. Another object of the present invention is to provide an improved automatic injection module.

The first object is achieved by a spray device with the features listed in claim 1. Characterized in that the connection surface of the automatic injection module and / or the supply module is set back relative to adjacent peripheral surface portions of the injection module body or the supply module body, a position-safe mutual positioning of the two components as a piece and counterpart to each other is possible.

It is particularly advantageous if all the fluid connections of the supply module, which are not arranged in the connection surface, are arranged on a single side of the supply module, this side preferably being arranged opposite or adjacent to the connection surface.

In a further embodiment, it is proposed that the connection surface of the supply module extends over an entire side of the supply module. It is advantageous if the supply module is shorter than the automatic injection module.

The spray device can be particularly well adapted to individual requirements, if the injection module is constructed in two parts and is composed of a gun body or actuator and a spray head part or nozzle head. The two components can be made of different materials. The possibly loaded with aggressive material nozzle head may be made for example of a corrosion-resistant stainless steel, while the gun body has been made of aluminum. In the long term, the injection module is suitable not only for the spraying of solvent-based paints, but also for the spraying of relatively aggressive water-based paints and the like, or of other aggressive liquids.

However, a complete or partial training of the components as plastic components is also possible.

The supply or control module can be made of the same materials as the gun body, depending on individual requirements.

It is advantageous if the channels provided in the injection module and in the supply or control module, which serve for material transport or for air transport, are in good alignment with one another and whose ends can be connected to one another in a fluid-tight manner.

For this purpose, it is proposed that between the automatic injection module and the supply module, a molded seal for sealing the fluid lines is provided, wherein the molded seal preferably identifies a plurality of integrally connected with connecting webs sealing rings and / or the molded seal is preferably inserted in receiving grooves in one of the pads.

In particular, a molded gasket is proposed, which surrounds the ends of the channels with rings, which are interconnected by webs. Such an embodiment is very material-saving.

Furthermore, it is proposed to extend the end of at least one channel, because then a particularly secure positioning for connection to the other module is made possible. Such an extension can be achieved in a simple manner by oblique drilling. For connecting the injection module and the supply or control module is proposed to detachably connect these components by at least one groove connection, a pin connection, a bolt connection.

A handle can be provided for easy detection / release of the connection. A bolt connection in combination with a handwheel is especially recommended.

Fine materials can be sprayed particularly accurately when the automatic injection module has a nozzle needle for controllably opening and closing a spray nozzle opening, a pneumatic needle confirmation unit for actuating the nozzle needle between an open and closed position and a control compressed air line for the pneumatic needle confirmation unit the control compressed air line also opens into the connection surface of the automatic injection module.

In a further embodiment of this type, it is proposed that the supply module is designed as a supply or control module with a round / width setting device.

The second object of the invention is achieved by an automatic injection module according to claim 11 or 27.

In a further embodiment of the automatic injection module, it is proposed that the injection module body is designed as an elongated, in particular cylindrical, body along the nozzle needle axis, which is preferably provided with a round, in particular a circular, cross-section.

It is advantageous if the automatic injection module identifies a spray liquid return line, which preferably also opens into the connection surface of the automatic injection module.

As already mentioned, the injection module body preferably comprises a spray head part or a nozzle head and an actuating part or a gun body, wherein preferably the spray head part is essentially made of aluminum, stainless steel or plastic and / or preferably the actuating part consists essentially of aluminum, stainless steel or plastic is made.

In a further embodiment, a portion of the connection surface on the injection-molded part and a portion of the actuating part is formed.

In further variants, the spray liquid line and, if appropriate, the spray liquid return line can open into that section of the connection surfaces which is formed on the spray head part.

A particularly advantageous design solution is that the connection surface of the automatic injection module is set back relative to circumferential surface sections of the injection module body, which lie opposite one another in the longitudinal direction of the injection module body.

It is further proposed that the connection surface of the injection module body with respect to the outer peripheral surface of the spray nozzle, in particular an air nozzle ring of the spray nozzle, is set back.

Arranging all the fluid connections of the injection module in the connection surface brings great mounting advantages, moreover if the connection surface is narrower and / or shorter than the injection module body.

A flat connection surface also facilitates installation and is easy to clean. Great advantages in terms of always functioning properly are achieved when the automatic injection module has a nozzle needle for controllably opening and closing a spray nozzle opening, a pneumatic needle confirmation unit for actuating the nozzle needle between an open and closed position and a control compressed air line for the pneumatic needle confirmation unit , wherein the pneumatic needle-confirmation unit comprises a controllable by the control compressed air piston which entrains the nozzle needle in an opening movement, wherein the piston and the nozzle needle are each supported by a respective spring element on an inner wall of the injection module, and wherein the opening movement a stop acting on the piston stop is limited.

The proposed in another embodiment piston disc also contributes to the improvement of the needle guide.

Further advantageous details and embodiments of the invention are apparent from the remaining claims.

The invention will be explained in more detail with reference to drawings. Showing:

1 a first injection device in a perspective view from the front,

1a the first injection device in a structural design in side view, without air nozzle ring,

1b a sectional view taken along the line AA of 1a .

2 the same injection device in perspective view from behind,

3 the gun body or the automatic injection module of the spray device after 1 in perspective view from below,

4 the supply or control module of the spray device after 1a in a perspective view from above,

4a a section through another supply or control module of a spray device,

5 the gun body or the automatic injection module of a second injection device in a perspective view from below,

6 the supply or control module of the second injection device in a perspective view from above,

7 a variant of the first injection device in a perspective view from the front,

8th a cross section through the variant after 7 .

9 a partial section through the spray device after 1a , and

10 another supply or control module of another sprayer in view and

11 a cut through the in 10 illustrated supply or control module.

At the in 1 to 4 As shown in the first embodiment, the spraying device has an injection module 1 and a supply or control module 2 , The injection module 1 consists essentially of an actuating part, namely a gun body 3 , and a spray head part, namely a nozzle head 4 with a spray nozzle 4a , together. The gun body 3 and the nozzle head 4 are formed as hollow cylindrical components with a circular cross section and arranged in the longitudinal direction in the same plane one behind the other. In her connection area 5 a seal is provided. In the spray module 1 is a conventional nozzle set with color needle packing (not shown) and air nozzle with air cap 6 accommodated. The air cap 6 has as usual two perforated horns 6a for broad-beam generation. The nozzle set and the air cap 6 are via a so-called air nozzle ring 7 detachable at the nozzle head 4 of the injection module 1 attached. At his the nozzle head 4 opposite end is the gun body 3 with a screw-on end cover 8th Mistake. In the present embodiment, the end cover 8th made of aluminum. Instead of the end cover 8th can be provided on individual request as an option an adjustment for volume control of the paint or the paint.

The air nozzle ring 7 is along its circumference in a known manner with a plurality of narrow longitudinal grooves 9 Mistake. This facilitates his grip. At its front end is the air nozzle ring 7 with a relatively thin color ring 10 fitted. The color ring 10 serves as a means of identification. For RP pistols, as usual, a blue color ring can be used 10 and a green color ring for HVLP pistols 10 be provided. Of course it is also possible, the color ring 10 in another place, for example at the rear end of the air nozzle ring 7 to arrange.

The end cover 8th also has longitudinal grooves along its circumference 11 , In the present embodiment has the end cap 8th less longitudinal grooves 11 as the air nozzle ring 7 , which are also less wide than the longitudinal grooves 9 at the air nozzle ring 7 , That's enough for a good grip of the end cap 8th out. On customer request, the air nozzle ring 7 with the same longitudinal grooves 11a be provided like the end cap 8th , Such a variant is in 9 shown.

It is also possible to use the gun body 3 and the nozzle head 4 not as two components, but in one piece form. The previously proposed and described two-part embodiment offers especially the advantage that the two components 3 and 4 can be made of different materials. The possibly loaded with aggressive material nozzle body 4 is made in the present embodiment of a corrosion-resistant stainless steel, while the gun body 3 made of aluminum. Therefore, the injection module 1 in the long term not only suitable for the spraying of solvent-based paints, but also for the spraying of relatively aggressive water-based paints and the like or other aggressive liquids. Because the nozzle body 4 about one-third as long as the gun body 3 , the cost / benefit ratio is good. Of course, with appropriate customer request, both the nozzle body 4 , as well as the gun body 3 made of stainless steel or another corrosion-resistant metal. On the other hand, with appropriate customer request, both the nozzle body 4 , as well as the gun body 3 made of aluminum or another base metal.

The supply or control module 2 is designed in one piece in block form and has a cuboid lower area 20 on, to which a trapezoidal block-shaped upper region in cross-section 21 followed. In the present embodiment, the cuboid lower portion 20 and the trapezoidal block shaped upper area 21 about the same height. The trapeze 21 has an angle γ of about 45 degrees (s. 8th ). This supply or control module 2 is made of stainless steel; but could also be made of aluminum on customer request.

In the present embodiment, all surfaces are anodized. Of course, all surfaces or only part of the surfaces could be finished in a different way.

It is also possible, the supply or control module 2 and / or the gun body 3 and / or the nozzle body 4 completely or partially made of plastics.

The supply or control module 2 becomes longitudinally of five channels 22 to 26 traversed. The two channels 22 and 23 run through the cuboid lower area 20 of the supply or control module 2 , Here is the channel 22 for the material flow (spray liquid line) and the channel 23 is intended for material return (spray liquid return line). The three channels 24 to 26 run through the trapezoidal block-shaped upper area 21 of the supply or control module 2 , The channel 24 serves for spraying air supply and the duct 25 to the control air supply. The channel 26 is intended to regulate the spray jet into an omnidirectional or wide jet. For this purpose, an adjusting element is in its inlet end 27 used. The inlet ends of the other four channels 22 to 25 can be provided with connection elements for hose lines (not shown).

The channel 24 for the spray air is by means of a transverse bore 28 with the channel 26 connected to the regulation of the spray jet. The two ends of the transverse bore 28 can be closed by means of a ball or the like. The equipment of the transverse bore 28 or another transverse bore with a throttle or with a valve is also possible.

All five channels 22 to 26 and thus all fluid connections terminate on the flat, rectangular upper outer surface 50 the trapezoidal block-shaped upper area 21 of the supply or control module 2 , At the outlet ends is the cross section of the channels 22 to 26 in the supply or control module 2 extended to the ideal state, ie they are slightly larger than the cross section of the inlet ends of the channels here 12 to 16 in the gun body 1 , This will accomplish the cursing of the channels 22 to 26 in the supply or control module 2 with the channels 12 to 16 in the gun body 1 facilitated. The cross-sectional widening of the channels has been achieved by oblique drilling and thus in a particularly simple manufacturing technology. In the present embodiment, only two of the channels, namely the central channels with the reference numbers 24 and 26 , drilled obliquely. That's usually enough. Of course, the other channels could be drilled obliquely.

In 1a is a sectional view of the injection module 1 shown, but without air nozzle, nozzle needle, gaskets and springs. As 1a In particular, shows is the pad 51 of the automatic injection module 1 opposite the peripheral surface portions 42 . 43 of the injection module body 3 set back in the longitudinal direction of the injection module body 3 are opposite. And it is opposite to an outer peripheral surface of the spray nozzle 68 namely, the air nozzle ring 7 the spray nozzle set back, so no assembly problems with the air nozzle ring 7 occur, which is not shown here.

The spray liquid line 12 and the spray liquid return line 13 ends in the section of the pad 51 open at the spray head or nozzle head 4 is formed.

A pivot (not shown) is in the pad 51 arranged and protrudes in front of this.

Out 4a is apparent as two channels 80 . 81 in another, rectangular in cross section supply or control module 2a structurally advantageous obliquely drilled. The central axis 82 of the canal 80 runs at an angle α of about 12 degrees to the central axis 2 B of the supply or control module 2a while the central axis 83 of the canal 83 at an angle β of about 16 degrees to the central axis 2 B of the supply or control module 2a runs.

A special molded seal 30 provides a fluid-tight connection of the inlet ends of the channels 12 to 16 in the gun body 1 with the outlet ends of the channels 22 to 26 in the supply or control module 2 , The ends of the channels 12 to 16 and the ends channels 22 to 26 lie on the outlines of a rectangle, with the ends of the channels 15 and 25 arranged in the middle of a short rectangle side, the ends of the channels 24 and 26 each in the middle of one of the two long sides of the rectangle and the channels 22 and 23 at the vertices of the other short side of the rectangle. The molded seal 30 has accordingly five annular areas 31 to 35 of which one each one of the five channels 22 to 26 surrounding tightly. The five annular areas 31 to 35 are interconnected via narrow single bridges; and that is a jetty 36 provided, which is in a right-angled bend of the annular area 31 to the annular area 32 extends. Another jetty 37 extends straight from the annular area 32 to the annular area 33 and a short straight jetty 38 from the annular area 33 to the annular area 34 , The jetty 39 extends straight from the annular area 34 to the annular area 35 and the jetty 40 from the annular area 35 in a right-angled bend to the annular area 31 , The entire form-sealing structure 30 is integrally made of an elastic material, namely made of an artificial rubber. A production of Teflon would also be possible.

The molded seal 30 in any case after assembly of the supply or control module 2 with the injection module 1 with their annular areas 31 to 35 close to the inlet ends of the channels 12 to 16 of the injection module 1 at. Such a seal has the advantage over a conventional sealing with individual O-rings that because of the above-described web joints on the molded seal 30 no slipping of the rings 31 to 35 is possible. In addition, the design makes the molded seal 30 with rings 31 to 35 and jetties 36 to 40 inexpensive, since little material for producing the molded seal 30 is needed.

On the other hand, the molded gasket could also be made from a surface from which holes are recessed according to the size of the channel ends. It is essential that the molded seal closely surrounds the ends of the channels. The injection module 1 is in its connection area 5 preferably equipped with a molded seal, as described above. In another embodiment, however, a flat gasket or a plurality of O-rings could be provided.

The outside of the injection module 1 is in the range of intake ducts 12 to 16 with a flat rectangular surface 51 designed. This rectangular area 51 is by milling the outer shell of the cylinder, which is the injection module 1 represents, has been produced. It is accordingly opposite to the other circumferential surface portions of the injection module body 3 set back.

Its width b corresponds to the outer diameter of the cylinder 3 , In addition, the width b corresponds to the width b1 of the rectangular upper outer surface 50 the trapezoidal block-shaped upper area 21 of the supply or control module 2 ,

The rectangular area begins in the longitudinal direction 51 just behind the front end of the nozzle head 4 and ends relatively far away from the rear end of the gun body 3 of the injection module 1 , Accordingly, over the two longitudinal ends of the rectangular surface and thus perpendicular to the longitudinal direction of the gun body 51 in each case a profile in the form of a circular section surface 52 . 53 from. A first circular section surface 52 located in the present embodiment at the nozzle head 4 and a second circular section surface 53 on the gun body 1 , The length l of the rectangular area 51 and thus the distance of the circular section surfaces 52 and 53 are to the length l1 of the plan, rectangular upper outer surface 50 the trapezoidal block-shaped upper area 21 of the supply or control module 2 Voted. In the present embodiment, the length l in the injection module 1 by about half a millimeter and thus slightly larger than the length l1 of the rectangular area 51 of the supply or control module 2 has been chosen. This results in an excellent positioning aid for the two lateral end surfaces 54 and 55 of the supply or control module 2 when assembling with the injection module 1 , Of course, the dimensioning described above can also be applied to an injection module 1 that are not made up of two parts 3 and 4 is composed.

In the present embodiment, the height H1 (s. 8th ) of the supply or control module 2 about 3 cm. The overall assembly, namely a spray device of automatic injection module 1 and supply or control module 2 , is therefore excellently suited for use in a line or track having a variety of spray devices for the automatic coating of like workpieces. With the dimensionally designed according to the invention Overall assembly, any or all spray devices can be easily replaced.

In the in the 11 and 12 illustrated variant of a supply or control module 2 B its body is essentially cuboid and has only a very small trapezoid block-shaped top 51 , At its upper side, which faces the injection module, not shown here, is also a connection surface 50 provided for the (not shown) injection module whose width b corresponds to the outer diameter of the at least partially cylindrical injection module. In the present embodiment, the width b is only about 24 mm, the height H of the supply or control module 2 B is about 25 mm and the width B of the supply or control module 2 B is about 46 mm. The trapeze 51 owns an angle here 6 from about 80 degrees. The supply or control module 2 B is therefore very compact.

Out 12 it can be seen that the supply or control module 2 B several grooves 30a owns for a molded seal.

Of course, a supply or control module designed completely differently in outline / cross-section could also be used. It is always essential that the connection surface of the automatic injection module 1 and / or the control or supply module 2 opposite adjacent peripheral surface portions of the injection module body 1 or the supply module body 2 are back.

Approximately half of its longitudinal extent is the supply or control module 2 with a hole 29 for a in 4 Not shown fastening bolts provided, which in one in the pad 51 provided hole 17 of the gun body 3 is housed and protrudes from it. There is still a hole 29a for receiving one on the gun body 3 attached Verdrehzapfens (not shown) provided in the pad 51 is arranged and protrudes from this.

In the 7 and 8th is indicated, as the injection module 1 and the supply or control module 2 can be connected to each other very quickly and, if necessary, can be quickly detached again from each other. As previously mentioned, in the injection module 1 , in the gun body 3 , a hole 17 taken in and in the supply or control module 2 a hole 29 , The hole 17 in the gun body 1 has a slightly smaller diameter than the hole 29 in the supply or control module. In the hole 17 is a fixing bolt 18 screwed. The bolt 18 has approximately in the middle a circumferential annular groove 19 , In the ring groove 19 grab a bolt 56 a, on which a handwheel 57 is attached. The handwheel 57 has a wavy grip area 58 , By turning the handwheel 57 can the injection module 1 from the supply or control module 2 on and off. When turning the handwheel 57 In one direction is the injection module 1 to the supply or control module 2 moved and pressure on the previously described molded seal 30 exercised, which enhances their sealing effect. When turning the handwheel 57 in the opposite direction is the injection module 1 from the supply or control module 2 moved away and from the supply or control module 2 be removed, with the bolt 18 remains in the gun body.

In the in the 5 and 6 indicated second embodiment, the same components are provided with the same reference numerals as in the first embodiment described above and are therefore not described again here. Essential in the second embodiment is that the gun body 3 of the injection module 1 identifies a modified non-circular outer shell, wherein the flat rectangular surface 51 outside the circular path, which is otherwise from the outer shell of the cylinder, the gun body 3 represents, projects. Along both sides of the plan rectangular surface 51 each includes a flat rectangular surface 59 respectively. 60 at. The rectangular areas 59 and 60 are about one fifth as wide as the rectangular area 51 and each at an angle of about 45 degrees to the rectangular area 51 arranged.

The supply or control module 61 to 6 is essentially cuboid. It has a recessed, ie set back flat rectangular upper outer surface 50 , On both sides along the outer surface 50 flat flat surfaces close 62 and 63 according to the plan rectangular areas 59 respectively. 60 on the gun body 3 are designed. This results in an excellent positioning aid, guide and contact surface for the two flat rectangular surfaces 59 respectively. 60 on the gun body 3 when assembled with the supply or control module 1 ,

Both modules 2 and 3 are made of metals that can be machined. As a result, the above-described areas can be easily manufactured. In the present embodiment, the rectangular surfaces 62 and 63 at their upper ends for safety reasons and to improve the visual appearance of the spray device 1 chamfered.

The supply or control module 61 is also with a molded seal 30 equipped, which are the ends of the channels 22 to 25 with rings 31 to 35 surrounded by footbridges 36 connected to each other.

In contrast to the supply or control module 2 to 4 is at the supply or control module 61 to 6 no channel for material return.

At the in 9 illustrated embodiment can be seen as an excellent leadership and adjustment of the paint needle or nozzle needle 64 in the gun body 3 the spray device can be done.

The actuating part or gun body 3 at the nozzle head 4 far end with a cover 8th is closed. The end cover 8th for this purpose has a relatively thick circular disk-shaped section 65 , of which the gun interior facing surface 66 a cylindrical suppository 67 protrudes, which at a distance to the free end of the color needle guide 64 runs. The diameter of the suppository 67 is the diameter of the free end of a color needle guide 64 Voted.

As the 9 further shows is on the end cap 8th a cylindrical extension 69 integrally formed, which with an external thread 70 is provided with an internal thread 71 in the gun body 3 interacts. The end cover 8th is designed as a threaded cover and very safe on the gun body 3 attached.

The connection area not shown here 51 of the operating part ( 3 ; s. 3 ) is at least nearly in alignment with the internal thread 71 set back.

In the area, preferably next to the connection area 51 , a tightness control bore (not shown) is provided. This hole is used to check whether spray liquid has entered the actuating part.

The automatic injection module 1 has a guide for the nozzle needle 64 for controllably opening and closing the spray nozzle opening 68 , a pneumatic needle confirmation unit 90 for actuating the nozzle needle 64 between an open and closed position and a control compressed air line 15 for the pneumatic needle confirmation unit 90 , The pneumatic needle confirmation unit 90 has a piston which can be actuated by the control compressed air 72 on, the nozzle needle 64 entrains in an opening movement, wherein the piston 72 and the nozzle needle 64 are each supported by an unillustrated spring element on an inner wall of the injection module separately. The opening movement of the nozzle needle 64 is through one on the piston 72 acting stop 66 bounded, which of the end face 66 the thread of the threaded cover 8th of the automatic injection module 1 is trained.

The piston 72 is by a one-piece piston disc 73 with a circumferential groove for receiving a piston seal 74 is formed. The piston seal 74 has an inner O-ring, preferably nitrile butadiene rubber, and an outer sealing ring, preferably Teflon.

Finally, it should be noted that the above-described only preferred embodiments of the present invention, but the present invention is not limited thereto. For the skilled in the art, the present invention may have various modifications and changes. All changes, equivalent substitutions, improvements that fall within the scope and principle of the present invention are intended to be within the scope of protection.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2393606 B1 [0003]

Claims (30)

Injection device for spraying a spraying liquid, in particular a coating material, preferably a paint, a lacquer, an adhesive material or the like, in an automatic operation, wherein injection device has an automatic injection module and a supply module, and wherein the automatic injection module at least one injection module body, a Spray nozzle, a spray liquid line for supplying spray liquid to the spray nozzle and a Zerstäubungsdruckluftleitung for supplying atomizing compressed air to the spray nozzle, wherein the injection module body is provided with a connection surface which for supplying the automatic injection module with the spray liquid and the atomizing compressed air detachably on a connection surface of the supply module is attachable, wherein the Zerstäubungsdruckluft- and spray liquid line open in the connection surface, characterized in that the connection surface e ( 59 ; 51 ) of the automatic injection module ( 1 ) and / or the supply module ( 2 . 2a . 2 B ) opposite adjacent peripheral surface portions of the injection module body ( 3 ) or the supply module body ( 2 . 2a . 2 B ) is relocated. Spray device according to claim 1, characterized in that the automatic injection module ( 1 ) a nozzle needle ( 64 ) for controllably opening and closing a spray nozzle opening ( 68 ), a pneumatic needle confirmation unit ( 90 ) for actuating the nozzle needle ( 64 ) between an open and closed position and a control compressed air line ( 25 ) for the pneumatic needle confirmation unit, wherein the control compressed air line ( 25 ) also in the connection area ( 51 ) of the automatic injection module ( 1 ) opens. Spray device according to claim 1 or 2, characterized in that the supply module ( 2 . 2a . 2 B ) as a control module with a round / Breitstrahl adjustment ( 27 ) is trained. Spray device according to one of the preceding claims, characterized in that all fluid connections of the supply module ( 2 . 2a . 2 B ), which are not in the pad ( 50 ) are arranged on a single side of the supply module ( 2 . 2a . 2 B ) are arranged, this side preferably opposite or adjacent to the pad ( 50 ) is arranged. Spray device according to one of the preceding claims, characterized in that the connection surface of the supply module ( 2 . 2a . 2 B ) over an entire side of the supply module ( 2 . 2a . 2 B ). Spray device according to one of the preceding claims, characterized in that the supply module ( 2 . 2a . 2 B ), shorter than the automatic injection module ( 1 ). Spray device according to one of the preceding claims, characterized in that between the automatic injection module ( 1 ) and the supply module ( 2 . 2a . 2 B ), a molded gasket ( 30 ) for sealing the fluid lines ( 22 to 26 ) is provided, wherein the molded seal ( 30 ) preferably several with connecting webs ( 36 to 40 ) integrally connected sealing rings ( 31 to 35 ) and / or the molded seal ( 30 ) preferably in receiving grooves ( 30a ) is inserted in one of the connection surfaces. Spray device according to one of the preceding claims, characterized in that at least one mouth of a fluid line ( 22 to 26 ; 80 . 81 ), preferably by the line ( 22 to 26 ; 80 . 81 ) is drilled obliquely. Spray device according to one of the preceding claims, characterized in that between the modules ( 1 ; ( 2 . 2a . 2 B ) at least one groove connection, a pin connection or the like ( 18 ; 17 . 56 ) is provided. Spray device according to one of the preceding claims, characterized in that the automatic injection module ( 1 ) and the supply module ( 2 ) by at least one bolt connection ( 17 . 56 ) are releasably connectable to each other, which preferably by means of a handle ( 57 ), in particular a handwheel, can be actuated. Automatic injection module of a spray device according to one of the preceding claims. Automatic injection module according to claim 11, characterized in that the injection module body ( 3 ) as elongated along the nozzle needle axis, in particular cylindrical body ( 3 ), which is preferably provided with a round, in particular a circular, cross-section. Automatic injection module according to claim 11 or 12, characterized in that the automatic injection module ( 1 ) a spray liquid return line ( 23 ), which preferably also in the pad ( 51 ) of the automatic injection module ( 1 ) opens. Automatic injection module according to one of claims 11 to 13, characterized in that the injection module body ( 1 ) a spray head part ( 4 ) and an actuating part ( 3 ), wherein preferably the spray head part ( 4 ) is essentially made of aluminum, stainless steel or plastic and / or preferably the actuating part ( 3 ) is essentially made of aluminum, stainless steel or plastic. Automatic injection module according to claim 14, characterized in that a section ( 52 ) of the pad ( 51 ) at the spray head part ( 4 ) and a section ( 53 ) on the actuating part ( 3 ) are formed. Automatic injection module according to claim 15, characterized in that the spray liquid line ( 12 ) and optionally the spray liquid return line ( 13 ) in the portion of the pads, which at the spray head part ( 4 ) is formed. Automatic injection module according to one of claims 11 to 16, characterized in that the connection surface ( 51 ) of the automatic injection module ( 1 ) with respect to circumferential surface sections ( 41 . 42 ) of the injection module body ( 3 ), which in the longitudinal direction of the injection module body ( 3 ) are opposite. Automatic injection module according to one of claims 11 to 17, characterized in that the connection surface ( 51 ) of the injection module body ( 3 ) with respect to an outer peripheral surface of the spray nozzle ( 68 ), in particular an air nozzle ring ( 7 ) of the spray nozzle ( 68 ), is set back. Automatic injection module according to one of claims 11 to 18, characterized in that all fluid connections ( 12 to 16 ) of the injection module ( 3 ) in the connection area ( 51 ) are arranged. Automatic injection module according to one of claims 11 to 19, characterized in that the connection surface ( 51 ) is just. Automatic injection module according to one of claims 11 to 20, characterized in that the connection surface ( 51 ) is narrower and / or shorter than the injection module body ( 3 ). Automatic injection module according to one of claims 11 to 21, characterized in that a fastening bolt in the connection surface ( 51 ) is arranged and projects opposite to this. Automatic injection module according to one of claims 11 to 22, characterized in that a pivot pin in the connection surface ( 51 ) is arranged and projects opposite to this. Automatic injection module according to one of claims 11 to 23, characterized in that the actuating part ( 3 ) at the top of the head with a threaded cover ( 8th ), which is in an internal thread ( 71 ) on the actuating part ( 3 ) engages, wherein the connecting surface at least almost in alignment with the internal thread ( 71 ) is relocated. Automatic injection module according to one of claims 11 to 24, characterized in that the actuating part ( 3 ) has a tightness control bore next to the pad. Automatic injection module according to one of claims 11 to 25, characterized in that between the spray head part ( 4 ) and the actuating part ( 3 ) a molded seal ( 30 ) is provided for sealing the fluid lines, wherein the molded seal ( 30 ) preferably several with connecting webs ( 36 to 40 ) integrally connected sealing rings ( 31 to 35 ) having. Automatic injection module of a spray device according to the preamble of claim 1, preferably according to one of the preceding claims, characterized in that the automatic injection module ( 1 ) a nozzle needle ( 64 ) for controllably opening and closing a spray nozzle opening ( 68 ), a pneumatic needle confirmation unit ( 90 ) for actuating the nozzle needle ( 64 ) between an open and closed position and a control compressed air line ( 25 ) for the pneumatic needle confirmation unit ( 90 ), wherein the pneumatic needle confirmation unit ( 90 ) a confirmable by the control compressed air piston ( 72 ), which the nozzle needle ( 64 ) entrains in an opening movement, wherein the piston ( 72 ) and the nozzle needle ( 64 ) each separately by a spring element on an inner wall of the injection module ( 1 ) are supported, and wherein the opening movement by a on the piston ( 72 ) acting stop is limited. Automatic injection module according to claim 27, characterized in that the stop ( 66 ) on a threaded cover ( 8th ) of the automatic injection module ( 1 ) is trained. Automatic injection module according to claim 27 or 28, characterized in that the piston ( 72 ) by a one-piece piston disc ( 73 ) with a circumferential groove for receiving a piston seal ( 74 ) is formed. Automatic injection module according to one of claims 27 to 29, characterized in that the piston seal ( 74 ) has an inner O-ring, preferably of nitrile-butadiene rubber, and an outer sealing ring, preferably of Teflon.

Images