Burner having movably mounted extraction pipe piece

Abstract

The invention relates to a burner (10) for thermally joining at least one workpiece, the burner having: a burner neck (1); a protective gas nozzle (2) for supplying protective gas from a protective gas channel (3) to the joining process; and a flue gas extraction nozzle (22) for extracting the flue gas which occurs during the joining process into an extraction pipe channel (4) which axially surrounds the burner neck (1) at least in portions. According to the invention, the extraction pipe channel (4) in the region of the burner neck (1) is formed by an extraction pipe piece (5) which is mounted movably relative to the burner neck (1) by means of a ball joint holder (7) for the purpose of guiding the flue gases and compensating for tolerances. The invention further relates to a burner system having a burner (10) and having a hose package for guiding media between the burner (10) and a supply base for the media.

Description

[0001] Designation: Burner with movable suction pipe

[0002] The invention relates to a burner with a movably mounted suction pipe section according to claim 1. The invention further relates to a burner system with a burner according to claim 12.

[0003] Thermal arc joining processes use energy to melt and join workpieces. MIG, MAG, and TIG welding are standard techniques in sheet metal production.

[0004] Arc welding devices create an arc between the workpiece and a consumable or non-consumable welding electrode to melt the weld metal. The weld metal and the weld area are shielded from atmospheric gases, primarily N2, O2, and H2, by a shielding gas stream.

[0005] The shielding gas flow flows around the welding electrode, the arc, the weld pool and the heat-affected zone on the workpiece and is supplied to these areas via the torch neck of the welding torch.

[0006] The torch neck usually contains a group of internal, current-carrying components that conduct the welding current from a welding power source in the arc welder to the tip of the torch head on the welding electrode, from where it then generates the arc to the workpiece.

[0007] A gas nozzle directs the shielding gas stream to the front end of the torch, where it exits the torch head in a roughly circular pattern around the welding electrode. In addition to welding, brazing is also considered for joining sheet metal components. Unlike welding, brazing melts only the filler metal, not the workpiece. This is because brazing joins two edges together using the filler metal. The melting points of the filler metal and the component materials are very different, which is why only the filler metal melts during processing.

[0008] For arc brazing, argon II or argon mixtures with admixtures of CO2, 02 or H2 according to DIN ISO 14175 can usually be used.

[0009] The principle of MSG arc brazing is largely identical in terms of equipment to MSG welding with wire-shaped filler material.

[0010] From EP 2 407 267 B1 and EP 2 407 268 B1 a welding torch is known with a shielding gas supply, a torch connection block, a torch neck connected to the torch connection block at one end and a torch head provided at the other end of the torch neck, wherein the torch neck has an inner tube, an outer tube and an insulating hose provided between the inner tube and the outer tube.

[0011] Such welding torches are used in the prior art, among other things, for metal inert gas welding (MIG). For example, one such welding torch is described in the document DE 10 2004 008 609 A1. With this welding torch, the welding current is fed to the welding wire located in the inner tube via the contact nozzle. The outer parts of the torch are electrically insulated from the inner tube to prevent welding currents from flowing via the torch housing. During the welding process, the welding wire is heated and some of the heat is conducted into the welding torch. In keeping with the generic principle, the shielding gas used in the welding process anyway can be used as effectively as possible to cool the inner tube. Effective cooling of the inner tube can be achieved if the gas flows in flat channels along the outside of the inner tube.To create gas flow channels outside the inner tube, the current technology uses a jacket tube on top of the inner tube. The inner tube and jacket tube assembly is then insulated from an outer casing tube by an insulating tube.

[0012] US Pat. No. 5,965,045 A discloses a welding torch with a handle that has a cable adapter on the rear side. The cable adapter is formed by a ball joint that is firmly connected to a cable holder into which a hose assembly is inserted. Mobility in the direction of the hose assembly is advantageous due to the ball joint, as the hose assembly is flexible, and the movable mounting optimizes load distribution during use. In particular, the "freely hanging" part of the hose assembly during use is reduced.

[0013] AT 508570 A1 concerns a flexible pipe bend for a welding torch.

[0014] Burners with extraction devices are provided to capture the fumes and pollutants produced during welding as close as possible to the point of origin, i.e. the welding process.

[0015] EP 2 298 485 A1 discloses a torch with an extraction housing that encloses a relatively short section of the torch neck. An extraction hose is connected to the extraction housing and is laid parallel to the remaining section of the torch neck and to the handle with the torch hose package. EP 0 835 71 1 A2 relates to a welding torch with an extraction pipe that encloses the torch neck and forms a fume gas channel in the space between. The extraction pipe merges into a fume gas extraction nozzle at the front. The fume gas is extracted directly at the welding point. The extraction pipe is firmly connected to the torch neck by means of a triple web and a union nut. At the handle end, the extraction pipe opens into an extraction hose that is guided outside next to the handle of the torch like a bypass.

[0016] Welding torches with a smoke gas extraction device are also known from EP 3 804 898 A1, DE 2 343 098 A1, DE 2 343 098 A1 and DE 3 135 381 C2.

[0017] DE 2 401 425 A1 concerns an extraction attachment for a welding torch.

[0018] Due to the “pipe-in-pipe” design, the necessary tolerance compensation of the extraction pipe around the burner neck is disadvantageous in known burners with flue gas extraction.

[0019] Previous solutions to this technical problem require a limited selection of bend radii and angles for the specified burner geometries. State-of-the-art manufacturing of burner necks and pipe bends involves tight tolerances. In addition, pipe bends only allow linear degrees of freedom instead of rotational degrees of freedom.

[0020] Another disadvantage of existing devices is that the use of flexible pipe sections can lead to excessive stress on the stretched fibers of the flexible metal pipe bend. Furthermore, there are fewer adaptation options overall for existing products, resulting in less variety in new complete solutions.

[0021] Based on the disadvantages described above, the object of the invention is to make the production of burners with suction pipe pieces more flexible and to avoid excessive stress on the stretched fiber of a flexible metal pipe bend.

[0022] This object is achieved by a burner with a movably mounted suction pipe section according to claim 1. The object is further achieved by a burner system according to claim 12.

[0023] The invention relates to a torch for thermally joining at least one workpiece, with a torch neck and with a protective gas nozzle for supplying protective gas from a protective gas channel to the joining process and with a smoke gas extraction nozzle for extracting the smoke gas occurring during the joining process into an extraction pipe channel which axially surrounds the torch neck at least in sections.

[0024] According to the invention, the suction pipe channel in the region of the burner neck is formed by a suction pipe section which is movably mounted relative to the burner neck by means of a ball joint mount for flue gas guidance and tolerance compensation.

[0025] The movably mounted extraction pipe section thus fulfils a dual function, namely as a flue gas guide and as a compensation for tolerances, particularly in the complex “pipe-in-pipe” design of the burner.

[0026] The flexible ball joint mount allows the pipe section to be flexibly and movably mounted. The flexible mounting of the extraction pipe section allows for tolerance compensation of the extraction pipe around the torch neck in "pipe-in-pipe" designs (extraction pipe around the torch neck). This is especially true for bent torch necks, which have a bending radius that is compensated for by the extraction pipe or the extraction pipe section.

[0027] Due to the movable or flexible mounting of the suction pipe section, it is also possible to use a standard flexible metal suction hose at lower purchase prices and with stable availability from the supplier. It is also conceivable to use a rigid pipe section, which would then also be mounted flexibly or moveably.

[0028] Additional advantages of the invention are greater copy protection compared to competitors, better collision behavior, improved flow geometry inside the burner, and adaptation to a variety of burner geometries.

[0029] In contrast to the prior art ball joint on the hose assembly side of the torch (cf. US Pat. No. 5,965,045 A), which allows for flexibility of the hose assembly for ergonomic reasons, flexibility at the front end of the torch is expressly avoided. Rather, high stability is desired, as otherwise the torch's TCP would be adversely affected. Therefore, the invention provides a flexible mounting on the extraction pipe bend so that the torch neck remains correspondingly rigid.

[0030] According to a first advantageous embodiment of the invention, the ball joint mount for movably receiving the extraction pipe section is arranged at the front end of the burner in the direction of flue gas flow, behind the flue gas extraction nozzle and in front of a burner interface for the media transfer from the hose package to the burner neck. In particular, the ball joint mount can advantageously be mechanically connected directly to a burner interface or integrated into the burner interface. Therefore, no bypass with additional interfaces is necessary, significantly reducing the risk of potential leaks at such interfaces.

[0031] In a particularly advantageous embodiment of the invention, the ball joint mount is integrated into the handle of a manually operated burner. In contrast, mechanically operated burners are guided, for example, by a robot arm. In manual burners, the flue gas is often guided linearly, meaning that there is usually no bypass or flue gas deflection, as is the case with mechanically operated burners.

[0032] The extraction pipe section can, for example, be screwed to the ball joint mount. It's conceivable that the ball joint mount has a thread into which the extraction pipe section is screwed. For hand torches, the ball joint mount can be part of the hand torch, and the extraction pipe section is screwed into the hand torch or the ball joint mount.

[0033] According to a further advantageous variant of the invention, the ball joint mount comprises a rotatably mounted ball, preferably a partial ball. An axis of rotation of the ball or partial ball is formed by two approximately diametrically opposed projections that engage in two corresponding recesses.

[0034] The movably mounted suction pipe section can comprise the ball or partial ball or be mechanically connected to the ball or partial ball, in particular in a form-fitting manner, for example by screwing it using a threaded ball joint. It is conceivable that the projections are formed on a receptacle for the ball or partial ball, and the recesses are formed on the ball or partial ball.

[0035] Because the axis of rotation is formed by the projections engaging in corresponding recesses, the ball joint is constructed in a simple manner. In particular, the projections and recesses can be molded into the ball joint mount during production.

[0036] According to a further advantageous embodiment of the invention, the movably mounted suction pipe section is designed as a hose section, in particular as a flexible metal suction hose or as a corrugated pipe or hose, or as a rigid pipe section. The corrugated pipe achieves its high degree of flexibility and the resulting high degree of pliability through its periodic corrugation. This corrugation enables the high degree of flexibility of the protective hose without sacrificing the robustness of the material, such as metal or plastic. For example, the pipe section can be designed as a flexible pipe bend or, alternatively, as a rigid pipe bend.

[0037] According to a further variant of the invention, the ball joint mount is designed with a flue gas bypass for separating the flue gas from other media, such as flow, wire, or protective gas lines. In other words, the flue gas bypass is part of the ball joint mount, which overall fulfills a dual function by, on the one hand, providing the movable mount for the extraction pipe section and, on the other hand, ensuring the separation of the media.

[0038] Such a flue gas bypass is required, for example, due to a diameter limitation at the interface between the burner and a hose assembly, or a diameter limitation in hollow-shaft robots. Due to the reduced diameter, a "pipe-in-pipe" solution is difficult to implement at these narrowed points. For this reason, the flue gas is routed around the narrowed area.

[0039] In particular, the ball joint holder can have an extraction pipe bend designed as a bypass inlet for the flue gas extraction, which is part of an exhaust gas deflection designed as a bypass, in particular the bypass can have a further extraction pipe bend designed as a bypass outlet.

[0040] The ball joint mount thus fulfils an additional function in that it not only serves as a mount for a pipe section for movable storage, but also has essential features of a bypass for diverting the flue gas.

[0041] The ball joint holder can be designed in particular as a pipe section with at least one opening for the flue gas to flow through the suction pipe bend which is in fluid connection with the opening.

[0042] In a further advantageous embodiment of the invention, it is provided that the bypass inlet opens into or merges into a pipe section forming the bypass channel, which preferably extends approximately parallel to the longitudinal axis of the burner and merges into the bypass outlet, in particular that the bypass channel guides the flue gas around a fastening area for the burner or around the narrowed area of ​​the burner.

[0043] In other words, in this design, the bypass inlet directs the flue gas away from the burner, while the bypass outlet directs the flue gas toward the burner or hose assembly. This is a non-linear flue gas transfer because the flue gas flow direction is changed.

[0044] The mounting area on the burner is the area in which the burner is attached to a bracket, for example by means of a clamp or screw device.

[0045] In the area of ​​the pipe section forming the bypass channel, which extends approximately parallel to the longitudinal axis of the torch and is arranged between the bypass inlet and bypass outlet, the shielding gas channel and the extraction pipe channel are aligned essentially axially parallel to each other.

[0046] The invention covers various burner variants. The exhaust pipe section for flue gas guidance and tolerance compensation is mounted movably relative to the burner neck by means of a ball joint mount. This applies to both manual burners (hand burners), where the flue gas is guided through the handle. However, it also applies to machine-guided burners (robot burners), which realize flue gas guidance through the robot interface, as well as to those robot burners that have a bypass around the constriction in the area of ​​a hollow shaft or interface.

[0047] From a design point of view, it is particularly advantageous that the ball joint holder is formed from half shells which can be connected to one another in a particularly fixed or non-detachable manner, preferably by welding.

[0048] After mounting the ball joint mount on the burner, for example on a hand-held burner or on a machine-guided burner, the ball joint mount may be permanently connected to the burner and, in particular, may only be removed by destroying the handle of the burner.

[0049] The ball joint holder is essentially made of plastic, in particular of a thermoplastic, preferably acrylonitrile butadiene styrene copolymer (ABS).

[0050] An independent idea of ​​the invention relates to a torch system with a torch described above and with a hose package for the media guide, such as current, wire or shielding gas lines, between the torch and a supply base for the media, for example a welding power source or a source for the shielding gas.

[0051] Further objects, advantages, features, and possible applications of the present invention will become apparent from the following description of an exemplary embodiment with reference to the drawing. All described and / or illustrated features, individually or in any meaningful combination, constitute the subject matter of the present invention, regardless of their summary in the claims or their interrelationship.

[0052] Some of them are shown schematically:

[0053] Figure 1 a) a sectional view of a manually guided burner with a ball joint holder for a suction pipe section and b) a perspective detailed view of the ball joint holder on the manually guided burner,

[0054] Figure 2 is a perspective view of another burner with ball joint mount with a flue gas bypass,

[0055] Figure 3 is a sectional view of the burner according to Figure 2,

[0056] Figure 4 shows the burner according to Figure 2 with a burner attachment,

[0057] Figure 5 shows a detailed view of the ball joint holder in perspective view,

[0058] Figure 6 is an exploded view of the ball joint holder according to Figure 5,

[0059] Figure 7 is a sectional view of the ball joint holder according to Figure 5,

[0060] Figure 8 further views a) and b) of the ball joint holder according to a further embodiment variant and

[0061] Figure 9 shows a detailed view of a mechanically guided burner in another embodiment with integrated flue gas ducting. Identical or equivalent components are provided with reference numerals in the following figures of the drawings based on an embodiment to improve readability.

[0062] Figure 1 shows a torch 10, in particular with a consumable electrode, preferably a MIG torch, for thermally joining at least one workpiece, which is designed as a manually guided torch or hand torch.

[0063] The embodiments of Figures 2-4 and 9, on the other hand, show machine-guided burners 10, for example, robotic burners that are guided mechanically or automatically by a robot arm. In particular, Figure 3 shows a sectional view of the burner according to Figure 1.

[0064] All illustrated torches 10 have a torch neck 1 and a shielding gas nozzle 2 for supplying shielding gas from a shielding gas channel 3 to the joining process. In the present embodiment, the shielding gas channel 3 is routed approximately centrally in the flue gas extraction nozzle 22.

[0065] Furthermore, the illustrated burners 10 are flue gas extraction burners with a flue gas extraction nozzle 22 for extracting the flue gas generated during the joining process into an extraction pipe channel 4, which axially surrounds the burner neck 1 at least in sections (see in particular Figure 3). The extraction pipe channel 4 is formed in the area of ​​the burner neck 1 by an extraction pipe section 5.

[0066] This flue gas extraction nozzle 22 is arranged, in particular screwed, on a burner neck 1 of the burner 10 (see Figure 3).

[0067] In the present case, several exhaust openings for the flue gas are provided, evenly distributed around the circumference of the burner neck 1. These exhaust openings are in fluid communication with at least one exhaust pipe channel 4, as further illustrated in Figure 3. The exhaust openings can be evenly distributed around the circumference of the burner neck 1.

[0068] In the embodiment of a hand torch 10 according to Figure 1, the suction pipe channel 4 is part of a handle 12 of the torch 10, which in the present case is formed from two half shells.

[0069] The movably mounted suction pipe section 5 can be designed as a rigid pipe section. In the present case, it is designed as a hose section, in particular as a flexible metal suction hose or as a corrugated pipe or hose.

[0070] This suction pipe section 5 is movably mounted relative to the burner neck 1 by means of a ball joint mount 7 for flue gas guidance and tolerance compensation. Detailed views of this ball joint mount 7 are shown in Figures 5 to 8.

[0071] In particular, Figure 5 shows a detailed perspective view of the ball joint receptacle 7, and Figure 6 shows an exploded view of the ball joint receptacle 7 according to Figure 5. Further details can be seen in the sectional view of the ball joint receptacle 7 according to Figure 7. These Figures 5 to 7 relate to a variant of the ball joint receptacle 7 with a bypass. The design of the ball joint receptacle 7 according to Figures 8 a) and b) relates to a variant without a bypass.

[0072] The figures further show that this ball joint mount 7 for movably receiving the extraction pipe section 5 is arranged at the front end of the burner 10, in the direction of flue gas flow, behind the flue gas extraction nozzle 22 and in front of a burner interface 24 for media transfer from the hose assembly to the burner neck 1. In particular, the ball joint mount 7 can be mechanically connected directly to the burner interface 24, as illustrated in Figures 2, 3, and 4.

[0073] As mentioned, Figure 1 shows a version of the manual burner 10 (hand burner) in which the ball joint mount 7 is integrated into a handle 25 of the burner 10. This variant according to Figure 1 involves a linear continuation of the flue gas, ie, as a rule, no bypass or flue gas deflection is provided, as is the case with mechanically guided burners.

[0074] The suction pipe section 5 can, for example, be screwed to the ball joint mount 7. It is conceivable that the ball joint mount 7 has a thread into which the suction pipe section 5 is screwed. In the case of a hand torch, the ball joint mount 7 can be part of the hand torch, and the suction pipe section 5 is screwed into the hand torch or the ball joint mount 7, respectively.

[0075] The detailed views according to Figures 5, 6, 7 and 8 illustrate that the ball joint receptacle 7 has a rotatably mounted ball, in the present case a partial ball 1 1, wherein an axis of rotation of the partial ball 1 1 is formed by two approximately diametrically opposed projections 16, 17 which engage in two corresponding recesses 18, 19.

[0076] In the exemplary embodiment chosen here, the movably mounted suction pipe section 5 has the partial sphere 1 1 or is mechanically connected to the partial sphere 1 1, in particular in a form-fitting manner, for example by screwing by means of a thread-like ball joint receptacle 7.

[0077] The embodiments according to Figures 2 to 7 relate to machine-guided burners 10, for example robot burners which are guided, for example, by a robot arm. These burners 10 can have an interface constriction, particularly in the area of ​​the attachment (cf. Figure 4). For example, due to this diameter limitation of the interface from the burner 10 to a hose package or also a diameter limitation in hollow shaft robots, a bypass is required to divert the flue gas. Because of the reduced diameter, a "pipe-in-pipe" solution, i.e. that the extraction pipe surrounds the burner neck there, is difficult to implement at these constricted points. The flue gas is therefore diverted around the area of ​​the constricted point.

[0078] It is therefore particularly advantageous that the ball joint holder 7 is designed with a flue gas bypass for separating the flue gas from other media, such as flow, wire or protective gas lines, and thus fulfills a dual function.

[0079] In the present case, the ball joint holder 7 has an extraction pipe bend 8 designed as a bypass inlet for the flue gas extraction, which is part of the exhaust gas deflection 9 designed as a bypass.

[0080] Figure 4 shows another suction pipe bend 20, which serves as a bypass outlet.

[0081] As Figure 4 further illustrates, the bypass inlet 8 merges into a pipe section 13 forming the bypass channel, which in this case extends approximately parallel to the longitudinal axis L of the burner 10 and merges into the bypass outlet 20. In other words, the bypass channel 13 guides the flue gas around the mounting area 21 for the burner 10 or the constricted area.

[0082] Figure 9 shows another variant of a mechanically guided burner 10 with integrated flue gas routing. This flue gas routing system requires no flue gas diversion and therefore no bypass, as is the case with the designs shown in Figures 2, 3, and 4.

[0083] For this reason, the ball joint holder 7 does not have a deflection or bypass, but rather realizes a linear continuation of the flue gas, as is illustrated by the arrow and the reference number 6 for an integrated extraction channel in Figure 9.

[0084] In particular, Figure 6 shows that the ball joint receptacle 7 is formed from half-shells 14, 15 which are firmly connected to one another, preferably by welding.

[0085] The ball joint holder 7 can be made essentially of plastic, in particular of a thermoplastic, preferably acrylonitrile-butadiene-styrene copolymer (ABS).

[0086] Figure 3 shows the front area of ​​the burner 10 with a centering star 23. The centering star 23 centers the suction pipe section 5 to the burner neck 1 and fixes it axially.

[0087] List of reference symbols

[0088] 1 burner neck

[0089] 2 shielding gas nozzle

[0090] 3 protective gas channel

[0091] 4 Suction pipe channel

[0092] 5 Suction pipe piece

[0093] 6 Extraction channel - integrated

[0094] 7 Ball joint mount

[0095] 8 Suction pipe bend / bypass inlet

[0096] 9 Flue gas diversion / bypass

[0097] 10 burners

[0098] 1 1 partial sphere

[0099] 12 Handle

[0100] 13 Pipe section on the suction pipe bend / bypass channel

[0101] 14 half shell

[0102] 15 half shells

[0103] 16 lead

[0104] 17 lead

[0105] 18 Recess

[0106] 19 Recess

[0107] 20 additional suction pipe bend / bypass outlet

[0108] 21 Mounting area

[0109] 22 Flue gas extraction nozzle

[0110] 23 Centering star

[0111] 24 burner interface

[0112] L Longitudinal axis

Claims

Patent claims 1 . Burner (10) for the thermal joining of at least one workpiece, with a burner neck (1 ) and with a protective gas nozzle (2) for supplying protective gas from a protective gas channel (3) to the joining process and with a smoke gas extraction nozzle (22) for extracting the smoke gas occurring during the joining process into a suction pipe channel (4) which axially surrounds the burner neck (1 ) at least in sections, characterized in that the suction pipe channel (4) is formed in the region of the burner neck (1 ) by a suction pipe section (5) which is movably mounted relative to the burner neck (1 ) by means of a ball joint holder (7) for the purpose of guiding the smoke gas and for tolerance compensation.

2. Burner (10) according to claim 1, characterized in that the ball joint holder (7) for movably receiving the suction pipe section (5) is arranged at the front end of the burner (10) in the flue gas flow direction behind the flue gas suction nozzle (22) and in front of a burner interface (24) for the media transfer from the hose package to the burner neck (1).

3. Burner (10) according to claim 1 or 2, characterized in that the ball joint holder (7) is mechanically connected directly to the burner interface (24).

4. Burner (10) according to one of claims 1 to 3, characterized in that the ball joint receptacle (7) is integrated in a handle (25) of the burner (10).

5. Burner (10) according to one of claims 1 to 4, characterized in that the ball joint receptacle (7) has a rotatably mounted ball, preferably a partial ball (1 1 ), wherein an axis of rotation of the ball or partial sphere (1 1) is formed by two approximately diametrically opposed projections (16, 17) which engage in two corresponding recesses (18, 19), in particular that the movably mounted suction pipe section (5) has the ball or partial sphere (1 1 ) or is mechanically connected to the ball or partial sphere (1 1).

6. Burner (10) according to one of claims 1 to 5, characterized in that the movably mounted suction pipe section (5) is designed as a hose section, in particular as a flexible metal suction hose or as a corrugated pipe or corrugated hose, or as a rigid pipe section (5).

7. Burner (10) according to one of the preceding claims, characterized in that the ball joint receptacle (7) is designed with a flue gas bypass for separating the flue gas from other media, such as flow, wire, or protective gas lines.

8. Burner (10) according to one of the preceding claims, characterized in that the ball joint holder (7) has an extraction pipe bend (8) designed as a bypass inlet for the flue gas extraction, which is part of an exhaust gas deflection (9) designed as a bypass, in particular that the bypass (9) has a further extraction pipe bend (20) designed as a bypass outlet.

9. Burner (10) according to claim 8, characterized in that the bypass inlet (8) opens into or merges into a pipe section (13) forming the bypass channel, which preferably extends approximately parallel to the longitudinal axis (L) of the burner (10) and merges into the bypass outlet (20), in particular that the bypass channel (13) guides the flue gas around a fastening area (21) for the burner (10).

10. Burner (10) according to one of the preceding claims, characterized in that the ball joint receptacle (7) is formed from half-shells (14, 15) which can be connected to one another in a particularly fixed manner, preferably by welding. 1 1. Burner (10) according to one of the preceding claims, characterized in that the ball joint holder (7) is made essentially of plastic, in particular of a thermoplastic, preferably acrylonitrile-butadiene-styrene copolymer (ABS).

12. Burner system with a burner (10) according to one of the preceding claims and with a hose package for the media guide between the burner (10) and a supply base for the media.

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