Spraying device for a cleaning machine for bottles or containers

Abstract

The present invention relates to a spray device (1) for a cleaning machine for bottles (100) or containers, comprising a supply pipe (5) for conveying a liquid medium to a nozzle shaft (4) rotatably driven about an axis (3), wherein the nozzle shaft is attached to the supply pipe by at least one nozzle holder (6) comprising a lower part (7), a bushing (8) and a clamp (9), wherein the lower part is attached to the supply pipe and the bushing arranged in a passage through the lower part forms a fluid channel (10) through the lower part connected to an interior of the supply pipe, wherein the nozzle shaft rests against an end of the bushing facing away from the supply pipe and the clamp partially surrounds the nozzle shaft in a circumferential direction of the nozzle shaft and is attached to the lower part.wherein at least one continuous nozzle channel (11) of the nozzle shaft opens within an angular range of the rotational movement (101) of the nozzle shaft about the axis to the fluid channel, so that the liquid medium exits the supply pipe through the fluid channel and the nozzle channel and through an opening (12) in the clamp. According to the invention, the clamp is detachably attached to the lower part by means of a snap device (13) such that the snap device can be opened in an opening direction (14) and the clamp can be removed from the nozzle shaft and the lower part perpendicular to the axis by opening the snap device.

Description

[0001] The present invention relates to a spray device for a cleaning machine for bottles or containers according to claim 1, a cleaning machine with a spray device according to claim 14 and a method for maintaining the spray device according to claim 15. State of the art

[0002] For the internal and / or external cleaning of bottles or containers in a cleaning machine, spray devices are provided at various points in the cleaning machine. The use of so-called rotary tube sprayers, as known, for example, from DE10315866A1, is common. Such a spray device comprises a supply pipe for conveying a liquid medium to a nozzle shaft rotatably driven about an axis, wherein the nozzle shaft is attached to the supply pipe by at least one nozzle holder, and at least one continuous nozzle channel of the nozzle shaft opens within an angular range of the rotational movement of the nozzle shaft about the axis towards the supply pipe, so that the liquid medium exits the supply pipe through the nozzle holder and the nozzle channel.

[0003] To enable quick replacement of the nozzle shaft or other wear parts of the nozzle holder, a spraying device is known from DE102008052114A1, which describes a U-shaped fixing of the nozzle shaft to a lower part attached to the supply pipe. This fixing is releasable by sliding it on and locking it in place along an axial direction of the nozzle shaft. The lower part has a bushing arranged in a passage through the lower part, forming a fluid channel through the lower part connected to the interior of the supply pipe. The nozzle shaft rests against an end of the bushing facing away from the supply pipe.

[0004] While existing spraying devices allow for relatively quick replacement of individual components, further improvements are needed to simplify and streamline maintenance and repair procedures. Task

[0005] Based on the known state of the art, the technical problem to be solved is therefore to specify a spraying device, a cleaning machine with a corresponding spraying device and a method for maintaining the spraying device, which allow for simpler and more efficient maintenance and repair measures. Solution

[0006] This problem is solved according to the invention by the spraying device according to claim 1, the cleaning machine with the spraying device according to claim 14, and the method for maintaining the spraying device. Advantageous embodiments of the invention are described in the dependent claims.

[0007] The spray device according to the invention for a cleaning machine for bottles or containers has a supply pipe for conveying a liquid medium to a nozzle shaft rotatably driven about an axis, wherein the nozzle shaft is attached to the supply pipe by at least one nozzle holder comprising a lower part, a bushing and a clamp, wherein the lower part is attached to the supply pipe and the bushing arranged in a passage through the lower part forms a fluid channel through the lower part connected to an interior of the supply pipe, wherein the nozzle shaft rests against an end of the bushing facing away from the supply pipe and the clamp partially surrounds the nozzle shaft in a circumferential direction of the nozzle shaft and attaches it to the lower part, wherein at least one continuous nozzle channel of the nozzle shaft opens to the fluid channel within an angular range of the rotational movement of the nozzle shaft about the axis.such that the liquid medium exits the supply pipe through the fluid channel and the nozzle channel and through an opening in the clamp, is characterized in that the clamp is detachably attached to the lower part by means of a snap device such that the snap device can be opened in an opening direction and the clamp can be removed from the nozzle shaft and the lower part perpendicular to the axis by opening the snap device.

[0008] The direction in which the clamp can be removed from the nozzle shaft and the base allows for very space-saving and efficient clamp removal during maintenance work. This simplifies maintenance procedures for the technician. Furthermore, the snap-fit ​​mechanism allows the nozzle shaft to be quickly attached to the supply pipe during maintenance, making the work even more efficient.

[0009] The clamp, lower part, and bushing can be designed such that the nozzle shaft rests against the bushing and clamp and is spaced apart from the lower part. Accordingly, during rotation, the nozzle shaft rubs against the clamp and bushing, not the lower part. This results in minimal wear on the lower part, allowing it to remain attached to the supply pipe during maintenance work on the clamp and bushing. This makes maintenance more efficient.

[0010] In one embodiment, the snap-fit ​​device may be formed by at least one rib with a hook at an end of the clamp located in the circumferential direction of the nozzle shaft, the hook engaging in a recess of the lower part as soon as the clamp is moved into a fastening position. Such a snap-fit ​​device is easy to manufacture and ensures a secure hold of the clamp on the lower part. The snap-fit ​​device may also include two ribs with a hook at the end of the clamp. This provides additional fixation of the clamp to the lower part. The phrase "at least one rib with a hook" should not be interpreted as limiting the embodiment to each rib having exactly one hook. A rib may also have multiple hooks.Similarly, the phrase "two bridges with one hook" should not suggest that the embodiment is limited to two bridges having only one common hook. The expressions encompass the possibility that each bridge can have at least one hook.

[0011] Furthermore, the clamp can have a snap-in mechanism at both ends in the circumferential direction of the nozzle shaft. This further simplifies attaching the clamp to the lower part.

[0012] In addition, the clamp can be designed with a recess on the bridge, and the lower part and the bridge can be shaped such that a tool can be attached to the recess to move the hook on the bridge out of the recess in the lower part in the opening direction. This allows the clamp to be removed easily and efficiently during maintenance work. The lower part and the two bridges can also be shaped so that the tool can be attached to the recesses of both bridges simultaneously. This simplifies the process of detaching the clamp from the lower part.

[0013] The lower part can also have a groove that aligns with the recess in such a way that the hook is guided through the groove before engaging in the recess when the clamp is moved into the fastening position. The bridge has a rail that sits in the groove when the clamp is in the fastening position. This allows the clamp to be positioned quickly and precisely relative to the lower part. Furthermore, this results in a more stable connection between the clamp and the lower part.

[0014] According to one embodiment, the respective lower part can be attached to the supply pipe by means of at least two screws. A ring is arranged around each screw passage on a surface of the lower part facing away from the supply pipe. This ring seals the respective screw passage when the lower part is attached to the supply pipe by means of the at least two screws. This allows the lower part to be securely attached to the supply pipe. The seal prevents any medium from entering the screw passage and eliminates dead spaces that would compromise hygiene. The two screws can be arranged at the same axial height as the supply pipe or one behind the other along the axis of the supply pipe.

[0015] It may be provided that the underside of the respective lower part has a centering feature that projects into an opening in the supply pipe, centers the lower part relative to the opening in the supply pipe, and forms the passage section by section. This simplifies the attachment and alignment of the lower part to the supply pipe.

[0016] Alternatively, the gap between the passage and the bushing can be sealed by means of a shaft seal, with the shaft seal preferably arranged in the center around the bushing. This allows the liquid medium to flow through the bushing and prevents leaks.

[0017] In one embodiment, a spring element can be arranged on the lower part such that the spring element biases the bushing in the direction of the nozzle shaft, wherein the spring element is preferably designed as a wave spring that is arranged around the bushing and engages a projection on the bushing. This ensures contact between the nozzle shaft and the bushing even in the event of wear of the nozzle shaft or the bushing, and the connection between the fluid channel and the nozzle channel is leak-free.

[0018] Furthermore, it can be provided that at least one second bushing is arranged in at least one second passage through the lower part such that the at least one second bushing forms at least one second fluid channel through the lower part connected to an interior of the supply pipe, wherein at least one second continuous nozzle channel of the nozzle shaft opens within a second angular range of the rotation of the nozzle shaft about the axis to the second fluid channel, so that the liquid medium exits from the supply pipe through the second fluid channel and the second nozzle channel and through the opening or a second opening in the clamp, wherein the second angular range coincides with or differs from the first angular range. This allows an additional jet of liquid medium to be generated at a nozzle holder.If the second angular range is identical to the first, the jets of liquid medium move parallel to each other. The first fluid channel can be positioned on the nozzle shaft so that it is located centrally under the bottle opening, spraying the inside of the bottle. The second nozzle channel can then be positioned offset to the side of the bottle opening to spray the exterior, the neck / cap area, and / or neck labels. Alternatively, the second angular range can also differ from or partially overlap with the first. This allows for the creation of other spray patterns, such as spraying different bottles or containers simultaneously.

[0019] It is also possible for the underside of the base to have a circumferential outer seal and a circumferential inner seal. When the base is attached around the opening in the supply pipe, the outer seal prevents the liquid medium from entering between the supply pipe and the base from the outside, and the inner seal prevents the liquid medium from entering between the supply pipe and the base from the supply pipe. The inner seal can be arranged around the centering element. This prevents any liquid medium from entering or under the base, thus making the spray device more hygienic.

[0020] Furthermore, the outer and inner seals can be manufactured by injection molding, preferably with the outer and inner seals connected by an injection channel, so that they are produced in a single injection molding step. This allows for efficient production of both the outer and inner seals. Alternatively, the lower part, as well as the outer and inner seals, can be manufactured by two-component injection molding. This allows for efficient production of the lower part.

[0021] Alternatively, the clamp can be manufactured using injection molding. The clamp can be made from recyclable plastic.

[0022] A cleaning machine for bottles or containers according to the invention comprises at least one spray device according to one of the embodiments of the spray device according to the invention described above.

[0023] A method according to the invention for maintaining one of the embodiments of the spray device according to the invention described above comprises the following steps: a. Remove the respective clamp of the respective nozzle holder, b. Remove the nozzle shaft, c. Remove the respective bushing of the respective nozzle holder, d. Check the respective clamp, nozzle shaft and bushing for wear, e. Replace the worn respective clamp, nozzle shaft and bushing, f. Insert the respective bushing into the respective lower part, g. Position the nozzle shaft against the respective bushing, h. Secure the nozzle shaft to the respective lower part using the respective clamp.

[0024] This allows maintenance of the spraying devices to be carried out in a simplified and efficient manner.

[0025] Step c may include removing the respective second bushing. Step d may include checking the respective second bushing for wear. Step e may include replacing the respective worn second bushing. Step f may include inserting the respective second bushing into the respective lower part. Step g may include arranging the nozzle shaft with the respective second bushing. Brief description of the characters

[0026] Fig. 1 Schematic sectional view perpendicular to the axis of the nozzle shaft of an embodiment of a spraying device with bottles or containers to be cleaned, Fig. 2 Side view along the axis of the nozzle shaft of the embodiment of the spraying device according to Fig. 1without the bottles or containers to be cleaned, Fig. 3a, b Oblique views of a first embodiment of a nozzle holder, Fig. 4 Oblique view of the clamp of the first embodiment of the nozzle holder, Fig. 5 Oblique view of the lower part of the first embodiment of the nozzle holder, Fig. 6 Oblique view of the first embodiment of the nozzle holder with tool, Fig. 7a, b Oblique views of a second embodiment of a nozzle holder, Fig. 8 Oblique view of the clamp of the second embodiment of the nozzle holder, Fig. 9 Oblique view of the lower part of the second embodiment of the nozzle holder, Fig. 10 Schematic sectional view perpendicular to the axis of the nozzle shaft of a further embodiment of a spray device with bottles or containers to be cleaned, Detailed description of the characters

[0027] Fig. 1Figure 1 shows a sectional view of an embodiment of the spray device 1 for a cleaning machine for bottles 100 or containers perpendicular to an axis 3 of the nozzle shaft 4, wherein the bottles 100 to be cleaned by the spray device 1 are schematically shown in Fig. 1The spray device 1 comprises a supply pipe 5 for conveying a liquid medium to the nozzle shaft 4, which is rotatable about the axis 3. The nozzle shaft 4 is attached to the supply pipe 5 by at least one nozzle holder 6. The nozzle holder 6 comprises a lower part 7, a bushing 8, and a clamp 9.The lower part 7 is attached to the supply pipe 5, and the bushing 8, arranged in a passage through the lower part 7, forms a fluid channel 10 through the lower part 7 connected to an interior of the supply pipe 5. The nozzle shaft 4 rests against an end of the bushing 8 facing away from the supply pipe 5, and the clamp 9 partially surrounds the nozzle shaft 4 in a circumferential direction and attaches it to the lower part 7. At least one continuous nozzle channel 11 of the nozzle shaft 4 opens to the fluid channel 10 within an angular range of the rotational movement 101 of the nozzle shaft 4 about the axis 3, so that the liquid medium from the supply pipe 5 exits through the fluid channel 10 and the nozzle channel 11 and through an opening 12 in the clamp 9.According to the invention, the clamp 9 is detachably attached to the lower part 7 by means of a snap device 13 such that the snap device 13 can be opened in an opening direction 14 and the clamp 9 is opened perpendicular to the axis 3, i.e. in the direction shown. Fig. 1 embodiment shown within the image plane of the Fig. 1 , removable from the nozzle shaft 4 and the lower part 7.

[0028] As in the Fig. 1As shown, the clamp 9, the lower part 7, and the bushing 8 can be designed such that the nozzle shaft 4 rests against the bushing 8 and the clamp 9 and is spaced apart from the lower part 7. Furthermore, the clamp 9 can have two snap-fit ​​devices 13, each formed by at least one web 15 with a hook 16 at the ends of the clamp 9 located in the circumferential direction of the nozzle shaft 4, the hooks 16 engaging in recesses 17 of the lower part 7 as soon as the clamp 9 is moved into a fastening position that is in Fig. 1 as shown. In addition, the web 15 can have a recess 18 and the lower part 7 and the web 15 can be designed such that a tool 30 can be attached to the recess 18 in order to move the hook 16 on the web 15 in the opening direction 14 out of the recess 17 of the lower part 7.

[0029] Furthermore, as in the Fig. 1As shown, the lower part 7 is attached to the supply pipe 5 by means of at least two screws 19, wherein a ring is arranged around each screw passage on a surface of the lower part 7 facing away from the supply pipe 5, which seals the respective screw passage with the respective screw 19.

[0030] Similarly, the underside of the respective lower part 7 can have a centering feature 20 that projects into an opening in the supply pipe 5, centers the lower part 7 relative to the opening in the supply pipe 5, and forms the passage section by section. A shaft seal 21 can be arranged within the centering feature 20, which seals any clearance between the passage and the bushing 8.

[0031] In addition, as in the Fig. 1As shown, a spring element 22 is arranged on the lower part 7 that biases the bushing 8 in the direction of the nozzle shaft 4, wherein the spring element 22 can be designed as a wave spring which is arranged around the bushing 8 and engages a projection on the bushing 8.

[0032] Furthermore, the underside of the lower part 7 can have a circumferential outer seal 23 and a circumferential inner seal 24. When the lower part 7 is fastened around the opening in the supply pipe 5, the outer seal 23 prevents the liquid medium from entering between the supply pipe 5 and the lower part 7 from the outside, and the inner seal 24 prevents the liquid medium from entering between the supply pipe 5 and the lower part 7 from the supply pipe 5. The inner seal 24 can be arranged around the centering element 20. The circumferential outer seal 23 and the circumferential inner seal 24 can be formed by means of sealing rings.

[0033] In a cleaning machine according to the invention for bottles 100 or containers, the bottles 100 to be cleaned are, as in Fig. 1 The spray device 1 is shown to be moved relative to at least one spraying device according to the invention such that the liquid medium is sprayed through the spraying device 1 into or onto the bottles 100 or containers. The rotary movement 101 of the nozzle shaft 4 can generate a movement of a jet of the liquid medium with or against the movement of the bottles 100 or containers.

[0034] Fig. 2 shows a side view along the axis 3 of the nozzle shaft 4 of the embodiment of the spraying device 1 according to Fig. 1 without the bottles or containers to be cleaned. As in Fig. 2As shown, the nozzle shaft 4 can be attached to the supply pipe 5 by several nozzle holders 6, the nozzle shaft 4 having at least one nozzle channel 11 cooperating with the respective nozzle holder 6. The nozzle shaft 4 can further have a driver 25 at an axial end, by means of which the rotary motion 101 of the nozzle shaft 4 is generated and which synchronizes the rotary motion 101 with the movement of the bottles 100.

[0035] Furthermore, the supply pipe 5, as in Fig. 2 shown, having a clamping nozzle 26 through which the liquid medium is directed into the supply pipe 5.

[0036] Fig. 3a, b show oblique views of a first embodiment of a nozzle holder 6 for a spraying device 1 according to the invention, wherein Fig. 4 an oblique view of the clamp 9 of the first embodiment of the nozzle holder 6 and Fig. 5show an oblique view of the lower part 7 of the first embodiment of the nozzle holder 6.

[0037] According to the first embodiment of the nozzle holder 6, the clamp 9 can have two snap devices 13, each of which has two webs 15 with a hook 16 that snap into recesses 17 of the lower part 7 as soon as the clamp 9 is moved into the fastening position.

[0038] In addition, the lower part can have 7 grooves 27 which connect to the respective recesses 17 in such a way that the respective hooks 16 are guided through the respective grooves 27 before the respective hook 16 engages in the recess 17 when the clamp 9 is moved into the fastening position. The respective web 15 can have a rail 28 which is located in the respective groove 27 when the clamp 9 is in the fastening position.

[0039] Furthermore, as shown by the first embodiment of the nozzle holder 6, the outer seal 23 and the inner seal 24 can be manufactured by injection molding, wherein the outer seal 23 and the inner seal 24 can be connected by an injection channel 29, so that the outer seal 23 and the inner seal 24 can be manufactured in one injection molding step. Additionally, the lower part 7, as well as the outer seal 23 and the inner seal 24, can be manufactured by two-component injection molding.

[0040] In addition, clamp 9 can also be manufactured using injection molding. Clamp 9 can also be made from recyclable plastic.

[0041] Fig. 6Figure 1 shows an oblique view of the first embodiment of a nozzle holder 6 with a tool 30 which engages in the recess 18 of the respective webs 15 of one of the snap device 13 and by means of which the snap device 13 is to be opened in the opening direction 14.

[0042] Accordingly, one embodiment of the inventive method for maintaining an embodiment of the inventive spraying device can be carried out by first removing the clamp 9 of the nozzle holder 6 using the tool 30, then removing the nozzle shaft 4, then removing the bushing 8, then checking the clamp 9, the nozzle shaft 4 and the bushing 8 for wear, then replacing the worn clamp 9, nozzle shaft 4 and / or bushing 8, then inserting the bushing 8 into the lower part 7, then arranging the nozzle shaft 4 towards the bushing 8 and finally fixing the nozzle shaft 4 to the lower part 7 using the clamp 9.

[0043] Fig. 7a, b show oblique views of a second embodiment of a nozzle holder 6 for a spraying device 1 according to the invention, wherein Fig. 8 an oblique view of the clamp 9 of the second embodiment of the nozzle holder 6 and Fig. 9Figure 1 shows an oblique view of the lower part 7 of the second embodiment of the nozzle holder 6. According to the second embodiment of the nozzle holder 6, at least one second bushing 31 can be arranged in at least one second passage through the lower part 7 such that the at least one second bushing 31 forms at least one second fluid channel through the lower part 7 connected to an interior of the supply pipe 5, wherein at least one second continuous nozzle channel 32 of the nozzle shaft 4 opens to the second fluid channel within a second angular range of the rotational movement 101 of the nozzle shaft 4 about the axis 3, so that the liquid medium exits from the supply pipe 5 through the second fluid channel and the second nozzle channel 32 and through a second opening 33 in the clamp 9, wherein the second angular range coincides with or differs from the first angular range.

[0044] Fig. 10Figure 1 shows a schematic sectional view perpendicular to the axis 3 of the nozzle shaft 4 of a further embodiment of a spraying device 1 and bottles 100 to be cleaned moving towards it. The embodiment has a nozzle holder 6 with a first bushing 8 and a second bushing 31, and the nozzle shaft 4 has a corresponding second nozzle channel 32. Accordingly, the spraying device 1 can spray two bottles 100 to be cleaned with jets of the liquid medium by means of a nozzle holder 6. The first and second angular ranges are different, so that the rotary movement 101 of the nozzle shaft 4 generates an offset movement of the two jets of the liquid medium.

Claims

1. Spray device (1) for a cleaning machine for bottles (100) or containers with a supply pipe (5) for conveying a liquid medium to a nozzle shaft (4) rotatably driven about an axis (3), wherein the nozzle shaft (4) is attached to the supply pipe (5) by at least one nozzle holder (6) comprising a lower part (7), a bushing (8) and a clamp (9), wherein the lower part (7) is attached to the supply pipe (5) and the bushing (8) arranged in a passage through the lower part (7) forms a fluid channel (10) through the lower part (7) connected to an interior of the supply pipe (5), wherein the nozzle shaft (4) rests against an end of the bushing (8) facing away from the supply pipe (5) and the clamp (9) sectionally surrounds the nozzle shaft (4) in a circumferential direction of the nozzle shaft (4) and is attached to the lower part (7),wherein at least one continuous nozzle channel (11) of the nozzle shaft (4) opens within an angular range of the rotational movement (101) of the nozzle shaft (4) about the axis (3) to the fluid channel (10), so that the liquid medium from the supply pipe (5) exits through the fluid channel (10) and the nozzle channel (11) and through an opening (12) in the clamp (9), characterized by the fact that the clamp (9) is detachably attached to the lower part (7) by means of a snap device (13) such that the snap device (13) can be opened in an opening direction (14) and the clamp (9) can be removed from the nozzle shaft (4) and the lower part (7) by opening the snap device (13) perpendicular to the axis (3).

2. Spray device (1) according to claim 1, wherein the clamp (9), the lower part (7) and the bushing (8) are designed such that the nozzle shaft (4) rests against the bushing (8) and the clamp (9) and is spaced apart from the lower part (7).

3. Spray device (1) according to claim 1 or 2, wherein the snap device (13) is formed by at least one web (15) with a hook (16) at an end of the clamp (9) lying in the circumferential direction of the nozzle shaft (4), wherein the hook (16) engages in a recess (17) of the lower part (7) as soon as the clamp (9) is moved into a fastening position, wherein the snap device (13) preferably comprises two webs (15) with a hook (16) at the end of the clamp (9).

4. Spray device (1) according to claim 3, wherein the clamp (9) has a snap device (13) at both ends in the circumferential direction of the nozzle shaft (4).

5. Injection molding device (1) according to one of claims 3 to 4, wherein the web (15) has a recess (18) and the lower part (7) and the web (15) are designed such that a tool (30) can be attached to the recess (18) in order to move the hook on the web (15) in the opening direction (14) out of the recess (17) of the lower part (7), wherein preferably the lower part (7) and the two webs (15) are designed such that the tool (30) can be attached to the recesses (18) of the two webs (15) simultaneously.

6. Spraying device (1) according to one of claims 3 to 5, wherein the lower part (7) has a groove (27) which connects to the recess (17) in such a way that the hook (16) is guided through the groove (27) before the hook (16) engages in the recess (17) when the clamp (9) is moved into the fastening position, wherein the web (15) has a rail (28) which is located in the groove (27) when the clamp (9) is in the fastening position.

7. Spray device (1) according to one of claims 1 to 6, wherein the respective lower part (7) is attached to the supply pipe (5) by means of at least two screws (19), wherein a ring is arranged around a respective screw passage on a surface of the lower part (7) facing away from the supply pipe (5), which seals the respective screw passage with the respective screw (19) when the respective lower part (7) is attached to the supply pipe (5) by means of the at least two screws (19).

8. Spray device (1) according to one of claims 1 to 7, wherein an underside of the respective lower part (7) has a centering (20) which projects into an opening in the supply tube (5), centers the lower part (7) relative to the opening in the supply tube (5) and forms the passage section by section.

9. Injection device (1) according to one of claims 1 to 8, wherein a clearance between the passage and the bushing (8) is sealed by means of a shaft seal (21), wherein the shaft seal (21) is preferably arranged in the centering (20) around the bushing (8).

10. Spraying device (1) according to one of claims 1 to 9, wherein a spring element (22) is arranged on the lower part (7) such that the spring element (22) biases the bushing (8) in the direction of the nozzle shaft (4), wherein the spring element (22) is preferably designed as a wave spring which is arranged around the bushing (8) and engages a projection on the bushing (8).

11. Spray device (1) according to one of claims 1 to 10, wherein at least one second bushing (31) is arranged in at least one second passage through the lower part (7) such that the at least one second bushing (31) forms at least one second fluid channel through the lower part (7) connected to an interior of the supply pipe (5), wherein at least one second continuous nozzle channel (32) of the nozzle shaft (4) opens within a second angular range of the rotational movement (101) of the nozzle shaft (4) about the axis (3) to the second fluid channel, so that the liquid medium exits from the supply pipe (5) through the second fluid channel and the second nozzle channel (32) and through the opening or a second opening in the clamp (9), wherein the second angular range is the same as or differs from the first angular range.

12. Spray device (1) according to one of claims 1 to 11, wherein an underside of the lower part (7) has a circumferential outer seal (23) and a circumferential inner seal (24), wherein, when the lower part (7) is fastened around the opening in the supply pipe (5), the outer seal (23) prevents the liquid medium from entering between the supply pipe (5) and the lower part (7) from the outside, and the inner seal (24) prevents the liquid medium from entering between the supply pipe (5) and the lower part (7) from the supply pipe (5), wherein the inner seal (24) is preferably arranged around the centering (20).

13. Injection molding device (1) according to claim 12, wherein the outer seal (23) and the inner seal (24) are manufactured by injection molding, wherein preferably the outer seal (23) and the inner seal (24) are connected by an injection channel (29) so that the outer seal (23) and the inner seal (24) are manufactured in one injection molding step, wherein further preferably the lower part (7) as well as the outer seal (23) and the inner seal (24) are manufactured by two-component injection molding.

14. Cleaning machine for bottles (100) or containers with at least one spray device (1) according to one of claims 1 to 12.

15. A method for maintaining the spraying device (1) according to any one of claims 1 to 13, the method comprising the following steps: a. Removing the respective clamp (9) of the respective nozzle holder (6), b. Removing the nozzle shaft (4), c. Removing the respective bushing (8) of the respective nozzle holder (6) and preferably removing the respective second bushings (31), d. Checking the respective clamp (9), the nozzle shaft (4) and the respective bushing (8), and preferably the respective second bushing (31), for wear, e. Replacing the worn respective clamp (9), nozzle shaft (4) and respective bushing (8), and preferably the respective second bushing (31), f. Inserting the respective bushing (8), and preferably the respective second bushing (31), into the respective lower part (7), g. Arranging the nozzle shaft (4) with respect to the respective bushing (8), and preferably the respective second bushing (31), h.Fixing the nozzle shaft (4) by means of the respective clamp (9) on the respective lower part (7).

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