Positioning device for positioning a slotted nozzle on a receiving bar of a coating system, arrangement and method

Abstract

The invention relates to a positioning device (22) for positioning a slotted nozzle (12) on a receiving bar (20) of a coating system, having a support side (24) on which the slotted nozzle (12) can be placed for positioning, wherein the positioning device (22) has a linear guide on the support side (24), by means of which linear guide the slotted nozzle (12) can be moved with a low degree of friction in a direction of movement (38) translationally relative to the positioning device (22), as a result of which the slotted nozzle (12) can be moved towards the receiving bar (20) and can be placed on the receiving bar (20) in an end position (16).

Description

[0001] Positioning device for positioning a slot nozzle on a support beam of a coating system, arrangement and method

[0002] The invention relates to a positioning device for positioning a slot nozzle on a support beam of a coating system, an arrangement for positioning a slot nozzle and a method for positioning a slot nozzle.

[0003] DE 10 2016 123 898 A1 discloses a lithium-ion battery component comprising a carrier and a lithium donor, which is arranged as an additive with a lithium-free active material in a negative electrode on the carrier configured as a current collector. A slurry can be applied to one side of the carrier using a slotted die and dried to form the negative electrode thereon.

[0004] Furthermore, DE 10 2013 204 872 A1 discloses an electrode for an electrochemical energy storage device, comprising at least two adjacent active material layers. The active material layers can be provided by wet coating. In wet coating, a dispersion is applied to a conductor foil using a slotted nozzle. This solvent-coated wet film is dried using air convection ovens or infrared irradiation.

[0005] Furthermore, it is known from EP 3 759 176 B1 to prepare a negative electrode by mixing an aqueous suspension and applying it to a carrier film by means of a slotted nozzle.

[0006] The object of the present invention is to provide a solution by means of which a slot nozzle can be positioned particularly easily and precisely, whereby an electrode can be produced by means of the slot nozzle. This object is achieved by the subject matter of the independent patent claims. Further possible embodiments of the invention are disclosed in the subclaims, the description and the figures. Features, advantages and possible embodiments that are set out in the description for one of the subject matter of the independent claims are to be regarded at least analogously as features, advantages and possible embodiments of the respective subject matter of the other independent claims and of any possible combination of the subject matter of the independent claims, optionally in conjunction with one or more of the subclaims.

[0007] The invention relates to a positioning device for positioning a slotted nozzle on a support beam of a coating system. The slotted nozzle is designed to apply a coating material to a carrier substrate, thereby producing an electrode for a battery cell, in particular a lithium-ion battery cell. This battery cell can be part of a vehicle battery, in particular a high-voltage battery of a motor vehicle. The slotted nozzle is thus designed in particular to apply an electrode paste to the carrier substrate. The support beam is designed to support the slotted nozzle, while the coating is applied to the carrier substrate by means of the slotted nozzle. The carrier substrate can, for example, be guided over an application roller, while the carrier substrate is provided with the coating by means of the slotted nozzle.When coating the carrier substrate, the slot nozzle is held in its aligned position relative to the application roller by means of the support beam. To ensure that the coating is applied to the carrier substrate with a predetermined coating thickness using the slot nozzle, the slot nozzle must be precisely positioned relative to the application roller. It is therefore necessary to be able to arrange the slot nozzle precisely on the support beam to ensure that the slot nozzle is positioned in a predetermined position relative to the application roller and is held in this predetermined position. The slot nozzle can, for example, be removed from its predetermined position for cleaning and can be arranged again in the predetermined position on the support beam for resuming or starting a coating process.The positioning device is provided to enable this arrangement of the slot nozzle on the support beam particularly easily, quickly, and precisely. The positioning device comprises a support side on which the slot nozzle can be placed for positioning. The positioning device has a linear guide on the support side, by means of which the slot nozzle can be moved translationally relative to the positioning device with low friction in the direction of movement. This allows the slot nozzle to be moved toward the support beam and placed on the support beam in an end position, thus placing it in the specified position.

[0008] The slot nozzle is typically placed on the support beam using a freely pivoting lifting device. Depending on its weight, the slot nozzle hangs from a crane or stands on a trolley in series and pilot plants. The freely pivoting slot nozzle must then be moved into position by hand and by moving the crane. This can be very time-consuming and laborious, particularly if the slot nozzle swings due to the freely pivoting arrangement. The positioning device allows the slot nozzle to be placed on the positioning device first for positioning, whereby the slot nozzle is already arranged at a height that at least essentially corresponds to the height of the slot nozzle in its final position.Furthermore, the slot nozzle can be transported to the support beam particularly easily and precisely via the linear guide. The slot nozzle is already fixed in its lateral direction, which is perpendicular to the direction of movement, and its position along the direction of movement can be aligned with millimeter precision using the linear guide. The positioning device thus enables particularly easy and quick positioning of the slot nozzle on the support beam, especially in its final position.

[0009] In a possible further development of the invention, at least one guide groove is provided on the support side, the longitudinal extent of which runs in the direction of movement and into which a guide element of the slot nozzle can engage, thereby guiding the slot nozzle linearly. If the guide element of the slot nozzle is inserted into the guide groove, the lateral movement of the slot nozzle can be restricted by the guide element abutting laterally against walls that laterally delimit the guide groove and thus perpendicular to the direction of movement. Because the slot nozzle rests on the support side of the positioning device, the height of the slot nozzle is fixed, and the lateral alignment of the slot nozzle is additionally fixed by the guide grooves.The at least one guide groove of the positioning device ensures that movement of the slot nozzle placed on the positioning device is only possible in the direction of movement relative to the positioning device. The at least one guide groove enables a particularly simple and reliable restriction of the movement of the slot nozzle relative to the positioning device to the translational movement in the direction of movement. If at least two guide grooves running parallel to one another in their longitudinal direction are provided on the support side of the positioning device, into which a guide element of the slot nozzle can engage in each of the guide grooves, the risk of twisting of the slot nozzle placed on the support side can be kept particularly low. This enables particularly precise positioning of the slot nozzle by means of the positioning device.

[0010] In a further possible embodiment of the invention, the positioning device has a roller conveyor on the support side, the rollers of which are arranged one behind the other in the direction of movement and whose respective axes of rotation run parallel to one another and perpendicular to the direction of movement. The rollers are designed to carry the slot nozzle, whereby the slot nozzle can be moved in a low-friction translational manner on the positioning device via the rollers. In particular, the rollers are arranged in such a way that the slot nozzle is supported on at least two rollers which are spaced apart from one another in the direction of movement and thus arranged in front of one another. This means that a distance between two respective rollers of the roller conveyor arranged one behind the other in the direction of movement is less than a length of the slot nozzle running in the direction of movement.The roller conveyor allows the slot nozzle to roll over the rollers as it moves in the direction of movement, which means that friction occurring when the slot nozzle moves relative to the positioning device can be kept particularly low.

[0011] In a further possible embodiment of the invention, the positioning device comprises a carriage having a linear spindle. The slot nozzle can be placed on this carriage, whereby the slot nozzle can be moved translationally in the direction of movement by means of the carriage. By means of the linear spindle, the carriage on which the slot nozzle can be placed can be moved translationally in the direction of movement, whereby in turn the slot nozzle can be moved translationally relative to the support side. This carriage with the linear spindle is a single-axis system, since the slot nozzle can only be moved translationally in the direction of movement by means of the carriage and thus in a single axis.The carriage with the linear spindle is a particularly simple construction by means of which the slot nozzle can be moved precisely and continuously in the direction of movement and thus positioned.

[0012] In a further possible embodiment of the invention, it is provided that the positioning device comprises a height adjustment device by means of which a support height of the slot nozzle placed on the support side can be adjusted in relation to a frame of the positioning device. The positioning device can be supported on a surface via this frame. The height adjustment device enables the slot nozzle to be placed securely on the support beam by adjusting the height of the slot nozzle in relation to the support beam, in particular in relation to a support surface of the support beam, by means of the height adjustment device. The height adjustment device thus enables the height of the slot nozzle placed on the positioning device to be adjusted particularly easily and precisely to the height of the slot nozzle in the predetermined end position.This ensures that the slot nozzle can be reliably positioned in the specified final position using the positioning device.

[0013] In a further possible embodiment of the invention, the positioning device comprises a fastening device by means of which the positioning device can be attached to the support beam. This allows the positioning device to be fixed in its orientation relative to the support beam. This ensures reliable, precise, and easy sliding of the slot nozzle onto the support beam using the positioning device.

[0014] The invention further relates to an arrangement for positioning a slot nozzle, wherein the slot nozzle is configured to apply a coating to a substrate when arranged in its final position. In the arrangement according to the invention, a positioning device configured to convey the slot nozzle, as already described in connection with the positioning device according to the invention, and a support beam are arranged one behind the other in such a way that the support beam is arranged in front of the positioning device in the direction of movement.This means that in order to position the slot nozzle using the arrangement, the slot nozzle is placed on the positioning device, moved on the positioning device in the direction of movement and, towards the end of the positioning process, is transferred to the receiving beam in the direction of movement by means of the positioning device, whereby the slot nozzle is arranged in the final position when it is arranged on the receiving beam. A receiving surface of the receiving beam, on which the slot nozzle is arranged in its final position, is arranged in the direction of movement as an extension of the support side of the positioning device. As a result, the slot nozzle placed on the support side of the positioning device can be moved translationally in the direction of movement towards the receiving beam and then onto the receiving surface of the receiving beam by means of the positioning device.The receiving surface of the receiving beam thus directly adjoins the support side of the positioning device in the direction of movement. The support side of the positioning device and the receiving surface of the receiving beam do not necessarily have to be arranged at the same height. To create the arrangement, the positioning device can be arranged behind the receiving beam in the direction of movement, moved towards the receiving beam, and fixed in the aligned position via a fastening device on the receiving beam. The positioning device enables the slot nozzle to be pushed onto the receiving beam, thus enabling particularly simple and precise alignment of the slot nozzle in its final position.

[0015] In a possible further development of the invention, it is provided that the receiving beam adjoins a front end of the positioning device, which is at the front in the direction of movement, so that at least one guide groove of the positioning device running in the direction of movement ends at a rear end of the receiving beam, as seen in the direction of movement, whereby the receiving beam provides a stop for a guide element of the slot nozzle guided in the guide groove. A cross-sectional area of ​​the guide groove is thus covered by the end face of the receiving beam in the forward direction of movement, as a result of which the end face of the receiving beam ensures that movement of the slot nozzle in the forward direction of movement is limited as soon as the guide element of the slot nozzle guided in the guide groove reaches the end face of the receiving beam and, due to the end of the guide groove, strikes the end face of the receiving beam.As soon as the guide element of the slot nozzle rests against the stop, the slot nozzle is positioned in its end position. For this purpose, the guide element is arranged on the slot nozzle in such a way that the position of the slot nozzle corresponds to the end position of the slot nozzle when the guide element rests against the stop. This allows for particularly simple positioning of the slot nozzle in the end position, as the stop prevents the slot nozzle from being moved beyond the end position in the direction of movement.

[0016] In a further possible embodiment of the invention, the positioning device is designed as a table, and the height of the support side is adapted to the height of the receiving surface of the receiving beam. In particular, the height of the support side of the positioning device can at least substantially correspond to the height of the receiving surface of the receiving beam. This means that the positioning device and the receiving beam are aligned flush with each other on their upper sides. This ensures a particularly simple and reliable transfer of the slot nozzle from the positioning device to the receiving beam.

[0017] The invention further relates to the positioning of a slot nozzle by means of an arrangement as already described in connection with the arrangement according to the invention. In the method, the slot nozzle is placed on the support side of the positioning device, moved translationally in the direction of movement towards the support beam by means of the linear guide, and then placed on the support surface of the support beam in its predetermined end position. The arrangement enables particularly simple and precise positioning of the slot nozzle in its predetermined end position. Time-consuming, complex adjustment of the slot nozzle in its final position, for example by positioning the slot nozzle so that it can pivot freely, can thus be eliminated.

[0018] Further features of the invention may emerge from the claims, the figures, and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features shown below in the description of the figures and / or in the figures alone, can be used not only in the respective combinations specified, but also in other combinations or on their own, without departing from the scope of the invention.

[0019] The drawing shows:

[0020] Fig. 1 is a schematic side view of an arrangement for positioning a slot nozzle with a positioning device and a support beam; Fig. 2 is a schematic rear view of the arrangement according to Fig. 1; and

[0021] Fig. 3 is a schematic plan view of the arrangement according to Fig. 1.

[0022] In the figures, identical and functionally identical elements are provided with the same reference numerals.

[0023] 1 to 3 show, in mutually different views, an arrangement 10 for positioning a slot nozzle 12. The arrangement 10 is shown in Fig. 1 in a schematic side view, in Fig. 2 in a schematic rear view, and in Fig. 3 in a schematic top view. The slot nozzle 12 is designed to apply a coating to a substrate. This substrate can be a film, for example. In the present case, this substrate is moved by means of an application roller 14 relative to the slot nozzle 12 into its end position 16. As can be seen particularly clearly in Fig. 1, the slot nozzle 12 has an outlet opening 18, via which a coating material can be dispensed from the slot nozzle 12, whereby this coating material can be applied to the substrate conveyed by means of the application roller 14.The slot nozzle 12 is to be placed on a support beam 20 of the arrangement 10 for arrangement in the final position 16.

[0024] For example, to clean the slot nozzle 12, it may be necessary to remove the slot nozzle 12 from its end position 16. To start another coating process, the slot nozzle 12 must therefore be rearranged in the end position 16. There is a technical need to prevent damage to the applicator roller 14 and the slot nozzle 12 when inserting the slot nozzle 12 onto the support beam 20 and when removing the slot nozzle 12 from the support beam 20. The slot nozzle 12 in series and pilot coating systems can weigh 200 to 400 kilograms. At the same time, the slot nozzle 12 must be positioned very precisely on the support beam 20. This support beam 20 is located directly in front of the applicator roller 14, as can be clearly seen in Fig. 1. The slot nozzle 12 and the applicator roller 14 are particularly high-precision parts that are manufactured with an accuracy of one micrometer.This makes it possible to produce electrodes with particularly high manufacturing precision by coating the carrier substrate using the slot nozzle 12. When the slot nozzle 12 is placed on the support beam 20 by means of a crane, from which the slot nozzle 12 hangs freely in space, there is a high risk that the slot nozzle 12 will come into contact with the application roller 14, thus causing damage to the application roller 14 and / or the slot nozzle 12. In order to minimize the risk of such damage to the slot nozzle 12 or the application roller 14 when positioning the slot nozzle 12 in the end position 16, and furthermore to enable particularly simple and rapid positioning of the slot nozzle 12, the arrangement 10 is provided with a positioning device 22 in addition to the support beam 20.The positioning device 22 is designed as a table, with the height of a support side 24 of the positioning device 22 being adapted to the height of a receiving surface 26 of the receiving beam 20. To position the slot nozzle 12, the slot nozzle 12 can be placed from the support side 24 onto the positioning device 22. In its end position 16, the slot nozzle 12 rests on the receiving surface 26 of the receiving beam 20.

[0025] The positioning device 22 comprises a frame 28, by means of which the positioning device 22 can be supported on a base 30. In the present case, this base 30 is a pedestal of a coating system comprising the arrangement 10, the slot nozzle 12, and the application roller 14. The positioning device 22 has a support plate 32 placed on the frame 28, which has the support side 24 and is designed to receive the slot nozzle 12. This support plate 32 has, as can be seen particularly clearly in Fig. 3, two guide grooves 34, the longitudinal extent of which extends in the direction of movement 38. A guide element 36 of the slot nozzle 12 can engage in each of these guide grooves 34. In the present case, the slot nozzle 12 has two guide elements 36, each of which engages in one of the guide grooves 34.The slot nozzle 12 is guided by the engagement of the guide elements 36 in the guide grooves 34. This ensures that the slot nozzle 12 can be moved translationally along the support side 24 in the direction of movement 38 by means of the positioning device 22 and is guided safely and precisely via the guide grooves 34.

[0026] In the present case, the positioning device 22 additionally has a roller conveyor 40 with a plurality of rollers 42 on the support side 24. For reasons of clarity, only individual rollers 42 are provided with the corresponding reference numeral. The rollers 42 are designed to receive and support the slot nozzle 12, whereby the slot nozzle 12 can be moved with low friction over the rollers 42 in the direction of movement 38. The rollers 42 are arranged one behind the other in the direction of movement 38, with the respective axes of rotation of the rollers 42 being aligned parallel to one another and running perpendicular to the direction of movement 38. In the present case, the respective axes of rotation of the rollers 42 run parallel to a plane spanned by the receiving surface 26 of the receiving beam 20. In the present case, the rollers 42 of the roller conveyor 40 are arranged in two parallel rows, each of the rows running in the direction of movement 38. As shown in Fig.3, the rollers 42 are arranged here between the two guide grooves 34. Because the guide grooves 34 are thus particularly far apart in the lateral direction running perpendicular to the direction of movement 38, the risk of the slot nozzle 12 pivoting about a vertical direction running perpendicular to the direction of movement 38 and perpendicular to the lateral direction can be kept particularly low. The roller conveyor 40 and the guide grooves 34 together form a linear guide by means of which the slot nozzle 12 can be moved translationally relative to the positioning device 22 in the direction of movement 38 with low friction. As a result, the slot nozzle 12 can be moved in the direction of movement 38 towards the receiving beam 20 and placed on the receiving surface 26 of the receiving beam 20 in the end position 16.The linear guide of the positioning device 22 can alternatively or additionally comprise a carriage with a linear spindle, wherein the slot nozzle 12 can be placed on the carriage, whereby the slot nozzle 12 can be moved translationally in the direction of movement 38 on the positioning device 22 by means of the carriage.

[0027] As can be clearly seen in Fig. 1, in the arrangement 10, the receiving beam 20 is arranged in front of the positioning device 22 in the direction of movement 38. In the arrangement 10, the positioning device 22 is directly adjacent to the receiving beam 20. In the present case, the positioning device 22 is fastened to the receiving beam 20 via a fastening device 44 of the positioning device 22 and is thereby fixed relative to the receiving beam 20. The receiving surface 26 of the receiving beam 20 is arranged in the direction of movement 38 as an extension of the support side 24 of the positioning device 22.

[0028] Furthermore, it can be seen particularly clearly in Fig. 1 that the receiving beam 20, with its rear end face in the direction of movement 38, rests directly against the front end face of the support plate 32 of the positioning device 22, which front end faces are aligned in the direction of movement 38. As a result, the guide grooves 34 running in the direction of movement 38 end at the rear end face of the receiving beam 20 in the direction of movement 38. As a result, the rear end face of the receiving beam 20 in the direction of movement 38 forms a stop 46 for the respective guide element 36 of the slot nozzle 12 guided in this guide groove 34. The position of the respective guide element 36 on the slot nozzle 12 is selected such that the slot nozzle 12 is arranged in its end position 16 as soon as the guide elements 36 of the slot nozzle 12 rest against the respective stops 46 assigned to the guide grooves 34.This allows for particularly precise positioning of the slot nozzle 12 at its distance from the application roller 14 in the direction of movement 38. In particular, by placing the respective guide elements 36 against the associated stops 46, a collision of the slot nozzle 12 with the application roller 14 during positioning of the slot nozzle 12 can be particularly effectively avoided.

[0029] In order to be able to adjust the height of the slot nozzle 12 relative to the base 30 and thereby ensure that the slot nozzle 12 can be reliably placed on the receiving surface 26 of the receiving beam 20 by means of the positioning device 22, the positioning device 22 can comprise a height adjustment device (not shown in the figures). By means of the height adjustment device, a support height of the slot nozzle 12 on the support side 24 of the positioning device 22 can be adjusted relative to the frame 28 or relative to the base 30. This can ensure that the slot nozzle 12 is brought to the height of the receiving surface 26 of the receiving beam 20 by means of the positioning device 22, whereby the slot nozzle 12 can be placed on the receiving surface 26 particularly easily and quickly.

[0030] For positioning the slot nozzle 12 by means of the arrangement 10, the slot nozzle 12 is thus placed on the support side 24 of the positioning device 22, moved translationally in the direction of movement 38 towards the receiving beam 20 by means of the linear guide of the positioning device 22 and then placed on the receiving surface 26 of the receiving beam 20 in the predetermined end position 16.

[0031] For the production of the arrangement 10, the positioning device 22, which is also known as

[0032] The slot nozzle 12 is positioned in front of the receiving beam 20 and can be referred to as a loading and application device. By means of a system of guide grooves 34 and rollers 42, the slot nozzle 12 can be guided translationally in the direction of movement 38 or against the direction of movement 38, whereby the slot nozzle 12 can be precisely inserted by means of the positioning device 22 and thus placed on the receiving beam 20 or removed and thus removed from the receiving beam 20. By guiding the guide elements 36 in the guide grooves 34, the slot nozzle 12 is guided laterally as the slot nozzle 12 moves along the direction of movement 38. The guide elements 36, which can be block-shaped, make it possible for a collision between the slot nozzle 12 and the application roller 14 to be at least substantially excluded by stops of the guide elements 36 on the respectively associated stops 46.

[0033] For the manufacture of the assembly 10, the positioning device 22 must be precisely positioned in the lateral direction relative to the receiving beam 20 to ensure that after the slot nozzle 12 has been placed on the receiving surface 26 of the receiving beam 20, the slot nozzle 12 is precisely aligned in its predetermined end position 16 in all spatial directions according to a predetermined orientation for the end position 16.

[0034] List of reference symbols

[0035] 10 Arrangement

[0036] 12 slot nozzle

[0037] 14 Application roller

[0038] 16 Final position

[0039] 18 Exit opening

[0040] 20 recording bars

[0041] 22 Positioning device

[0042] 24 support page

[0043] 26 Recording surface

[0044] 28 frame

[0045] 30 Underground

[0046] 32 support plate

[0047] 34 guide groove

[0048] 36 Guide element

[0049] 38 Direction of movement

[0050] 40 roller conveyor

[0051] 42 rolls

[0052] 44 Fastening device

[0053] 46 stop

Claims

Patent claims 1. Positioning device (22) for positioning a slot nozzle (12) on a support beam (20) of a coating system, with a support side (24) on which the slot nozzle (12) can be placed for positioning, wherein the positioning device (22) has a linear guide on the support side (24), by means of which the slot nozzle (12) can be moved translationally relative to the positioning device (22) in the direction of movement (38) with low friction, whereby the slot nozzle (12) can be moved towards the support beam (20) and placed on the support beam (20) in an end position (16).

2. Positioning device (22) according to claim 1, characterized in that at least one guide groove (34) is provided on the support side (24), the longitudinal extension of which extends in the direction of movement (38), into which a guide element (36) of the slot nozzle (12) can engage, whereby the slot nozzle (12) is guided linearly.

3. Positioning device (22) according to claim 1 or 2, characterized in that the positioning device (22) has a roller conveyor (40) on the support side (24), the rollers (42) of which are arranged one behind the other in the direction of movement (38) and whose respective axes of rotation run parallel to one another and perpendicular to the direction of movement (38), wherein the rollers (42) are designed to carry the slot nozzle (12), whereby the slot nozzle (12) can be moved in a low-friction translational manner on the positioning device (22) via the rollers (42).

4. Positioning device (22) according to one of the preceding claims, characterized in that a carriage with a linear spindle is provided, on which the slot nozzle (12) can be placed, whereby the slot nozzle (12) can be moved translationally in the direction of movement (38) by means of the carriage.

5. Positioning device (22) according to one of the preceding claims, characterized in that a height adjustment device is provided, by means of which a support height of the slot nozzle (12) placed on the support side (24) can be adjusted in relation to a frame (28) of the positioning device (22), via which the positioning device (22) can be supported on a base (30), whereby the slot nozzle (12) can be placed securely on the support beam (20).

6. Positioning device (22) according to one of the preceding claims, characterized in that a fastening device (44) is provided by means of which the positioning device (22) can be fastened to the receiving beam (20).

7. An arrangement (10) for positioning a slot nozzle (12) which is configured to apply a coating to a substrate when it is arranged in its end position (16), wherein in the arrangement (10), a positioning device (22) according to one of the preceding claims, configured to convey the slot nozzle (12), and a receiving beam (20) are arranged one behind the other in such a way that the receiving beam (20) is arranged in front of the positioning device (22) in the direction of movement (38), wherein a receiving surface (26) of the receiving beam (20), on which the slot nozzle (12) is arranged in its end position (16), is arranged in the direction of movement (38) in extension of the support side (24) of the positioning device (22),whereby the slot nozzle (12) placed on the support side (24) of the positioning device (22) can be moved by means of the positioning device (22) translationally in the direction of movement (38) towards the receiving beam (20) and then onto the receiving surface (26) of the receiving beam (20).

8. Arrangement according to claim 7, characterized in that the receiving beam (20) adjoins a front end face of the positioning device (22) in the direction of movement (38), so that at least one guide groove (34) of the positioning device (22) extending in the direction of movement (38) ends at a rear end face of the receiving beam (20) in the direction of movement (38). whereby the receiving bar (20) provides a stop (46) for a guide element (36) of the slot nozzle (12) guided in the guide groove (34), the slot nozzle (12) being arranged in its end position (16) when the guide element (36) bears against the stop (46).

9. Arrangement according to claim 7 or 8, characterized in that the positioning device (22) is designed as a table and the height of the support side (24) is adapted to the height of the receiving surface (26) of the receiving beam (20).

10. Method for positioning a slot nozzle (12) by means of an arrangement (10) according to claim 7, wherein the slot nozzle (12) is placed on the support side (24) of the positioning device (22), is moved translationally in the direction of movement (38) towards the receiving beam (20) by means of the linear guide and is then placed on the receiving surface (26) of the receiving beam (20) in its predetermined end position (16).

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